1995-07-06 17:12:22 +00:00
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/* ELF linker support.
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1998-03-27 21:30:53 +00:00
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Copyright 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
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1995-07-06 17:12:22 +00:00
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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1995-07-07 22:49:42 +00:00
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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1995-08-14 15:57:17 +00:00
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Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
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/* ELF linker code. */
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1997-06-16 18:41:19 +00:00
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/* This struct is used to pass information to routines called via
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elf_link_hash_traverse which must return failure. */
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struct elf_info_failed
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{
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boolean failed;
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struct bfd_link_info *info;
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};
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Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
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static boolean elf_link_add_object_symbols
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PARAMS ((bfd *, struct bfd_link_info *));
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static boolean elf_link_add_archive_symbols
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PARAMS ((bfd *, struct bfd_link_info *));
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1997-06-23 22:06:29 +00:00
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static boolean elf_merge_symbol
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PARAMS ((bfd *, struct bfd_link_info *, const char *, Elf_Internal_Sym *,
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asection **, bfd_vma *, struct elf_link_hash_entry **,
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boolean *, boolean *, boolean *));
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Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
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static boolean elf_export_symbol
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PARAMS ((struct elf_link_hash_entry *, PTR));
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1997-06-16 18:41:19 +00:00
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static boolean elf_fix_symbol_flags
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PARAMS ((struct elf_link_hash_entry *, struct elf_info_failed *));
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Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
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static boolean elf_adjust_dynamic_symbol
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PARAMS ((struct elf_link_hash_entry *, PTR));
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From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
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static boolean elf_link_find_version_dependencies
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PARAMS ((struct elf_link_hash_entry *, PTR));
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static boolean elf_link_find_version_dependencies
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PARAMS ((struct elf_link_hash_entry *, PTR));
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static boolean elf_link_assign_sym_version
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PARAMS ((struct elf_link_hash_entry *, PTR));
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static boolean elf_link_renumber_dynsyms
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PARAMS ((struct elf_link_hash_entry *, PTR));
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Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
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/* Given an ELF BFD, add symbols to the global hash table as
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appropriate. */
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boolean
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elf_bfd_link_add_symbols (abfd, info)
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bfd *abfd;
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struct bfd_link_info *info;
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{
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switch (bfd_get_format (abfd))
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{
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case bfd_object:
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return elf_link_add_object_symbols (abfd, info);
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case bfd_archive:
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return elf_link_add_archive_symbols (abfd, info);
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default:
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bfd_set_error (bfd_error_wrong_format);
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return false;
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}
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}
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1996-01-22 16:43:35 +00:00
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Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
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/* Add symbols from an ELF archive file to the linker hash table. We
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don't use _bfd_generic_link_add_archive_symbols because of a
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problem which arises on UnixWare. The UnixWare libc.so is an
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archive which includes an entry libc.so.1 which defines a bunch of
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symbols. The libc.so archive also includes a number of other
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object files, which also define symbols, some of which are the same
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as those defined in libc.so.1. Correct linking requires that we
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consider each object file in turn, and include it if it defines any
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symbols we need. _bfd_generic_link_add_archive_symbols does not do
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this; it looks through the list of undefined symbols, and includes
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any object file which defines them. When this algorithm is used on
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UnixWare, it winds up pulling in libc.so.1 early and defining a
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bunch of symbols. This means that some of the other objects in the
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archive are not included in the link, which is incorrect since they
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precede libc.so.1 in the archive.
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Fortunately, ELF archive handling is simpler than that done by
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_bfd_generic_link_add_archive_symbols, which has to allow for a.out
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oddities. In ELF, if we find a symbol in the archive map, and the
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symbol is currently undefined, we know that we must pull in that
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object file.
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Unfortunately, we do have to make multiple passes over the symbol
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table until nothing further is resolved. */
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static boolean
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elf_link_add_archive_symbols (abfd, info)
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bfd *abfd;
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struct bfd_link_info *info;
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{
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symindex c;
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boolean *defined = NULL;
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boolean *included = NULL;
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carsym *symdefs;
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boolean loop;
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if (! bfd_has_map (abfd))
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{
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/* An empty archive is a special case. */
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if (bfd_openr_next_archived_file (abfd, (bfd *) NULL) == NULL)
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return true;
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bfd_set_error (bfd_error_no_armap);
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return false;
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}
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/* Keep track of all symbols we know to be already defined, and all
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files we know to be already included. This is to speed up the
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second and subsequent passes. */
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c = bfd_ardata (abfd)->symdef_count;
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if (c == 0)
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return true;
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1995-12-01 19:48:10 +00:00
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defined = (boolean *) bfd_malloc (c * sizeof (boolean));
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included = (boolean *) bfd_malloc (c * sizeof (boolean));
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Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
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if (defined == (boolean *) NULL || included == (boolean *) NULL)
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1995-12-01 19:48:10 +00:00
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goto error_return;
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Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
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memset (defined, 0, c * sizeof (boolean));
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memset (included, 0, c * sizeof (boolean));
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symdefs = bfd_ardata (abfd)->symdefs;
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do
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{
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file_ptr last;
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symindex i;
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carsym *symdef;
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carsym *symdefend;
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loop = false;
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last = -1;
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symdef = symdefs;
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symdefend = symdef + c;
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for (i = 0; symdef < symdefend; symdef++, i++)
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{
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struct elf_link_hash_entry *h;
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bfd *element;
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struct bfd_link_hash_entry *undefs_tail;
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symindex mark;
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if (defined[i] || included[i])
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continue;
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if (symdef->file_offset == last)
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{
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included[i] = true;
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continue;
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}
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h = elf_link_hash_lookup (elf_hash_table (info), symdef->name,
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false, false, false);
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From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
|
|
|
|
|
if (h == NULL)
|
|
|
|
|
{
|
|
|
|
|
char *p, *copy;
|
|
|
|
|
|
|
|
|
|
/* If this is a default version (the name contains @@),
|
|
|
|
|
look up the symbol again without the version. The
|
|
|
|
|
effect is that references to the symbol without the
|
|
|
|
|
version will be matched by the default symbol in the
|
|
|
|
|
archive. */
|
|
|
|
|
|
|
|
|
|
p = strchr (symdef->name, ELF_VER_CHR);
|
|
|
|
|
if (p == NULL || p[1] != ELF_VER_CHR)
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
copy = bfd_alloc (abfd, p - symdef->name + 1);
|
|
|
|
|
if (copy == NULL)
|
|
|
|
|
goto error_return;
|
|
|
|
|
memcpy (copy, symdef->name, p - symdef->name);
|
|
|
|
|
copy[p - symdef->name] = '\0';
|
|
|
|
|
|
|
|
|
|
h = elf_link_hash_lookup (elf_hash_table (info), copy,
|
|
|
|
|
false, false, false);
|
|
|
|
|
|
|
|
|
|
bfd_release (abfd, copy);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (h == NULL)
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
continue;
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
if (h->root.type != bfd_link_hash_undefined)
|
|
|
|
|
{
|
1995-08-21 15:12:34 +00:00
|
|
|
|
if (h->root.type != bfd_link_hash_undefweak)
|
|
|
|
|
defined[i] = true;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* We need to include this archive member. */
|
|
|
|
|
|
|
|
|
|
element = _bfd_get_elt_at_filepos (abfd, symdef->file_offset);
|
|
|
|
|
if (element == (bfd *) NULL)
|
|
|
|
|
goto error_return;
|
|
|
|
|
|
|
|
|
|
if (! bfd_check_format (element, bfd_object))
|
|
|
|
|
goto error_return;
|
|
|
|
|
|
|
|
|
|
/* Doublecheck that we have not included this object
|
|
|
|
|
already--it should be impossible, but there may be
|
|
|
|
|
something wrong with the archive. */
|
|
|
|
|
if (element->archive_pass != 0)
|
|
|
|
|
{
|
|
|
|
|
bfd_set_error (bfd_error_bad_value);
|
|
|
|
|
goto error_return;
|
|
|
|
|
}
|
|
|
|
|
element->archive_pass = 1;
|
|
|
|
|
|
|
|
|
|
undefs_tail = info->hash->undefs_tail;
|
|
|
|
|
|
|
|
|
|
if (! (*info->callbacks->add_archive_element) (info, element,
|
|
|
|
|
symdef->name))
|
|
|
|
|
goto error_return;
|
|
|
|
|
if (! elf_link_add_object_symbols (element, info))
|
|
|
|
|
goto error_return;
|
|
|
|
|
|
|
|
|
|
/* If there are any new undefined symbols, we need to make
|
|
|
|
|
another pass through the archive in order to see whether
|
|
|
|
|
they can be defined. FIXME: This isn't perfect, because
|
|
|
|
|
common symbols wind up on undefs_tail and because an
|
|
|
|
|
undefined symbol which is defined later on in this pass
|
|
|
|
|
does not require another pass. This isn't a bug, but it
|
|
|
|
|
does make the code less efficient than it could be. */
|
|
|
|
|
if (undefs_tail != info->hash->undefs_tail)
|
|
|
|
|
loop = true;
|
|
|
|
|
|
|
|
|
|
/* Look backward to mark all symbols from this object file
|
|
|
|
|
which we have already seen in this pass. */
|
|
|
|
|
mark = i;
|
|
|
|
|
do
|
|
|
|
|
{
|
|
|
|
|
included[mark] = true;
|
|
|
|
|
if (mark == 0)
|
|
|
|
|
break;
|
|
|
|
|
--mark;
|
|
|
|
|
}
|
|
|
|
|
while (symdefs[mark].file_offset == symdef->file_offset);
|
|
|
|
|
|
|
|
|
|
/* We mark subsequent symbols from this object file as we go
|
|
|
|
|
on through the loop. */
|
|
|
|
|
last = symdef->file_offset;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
while (loop);
|
|
|
|
|
|
|
|
|
|
free (defined);
|
|
|
|
|
free (included);
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
|
|
|
|
|
error_return:
|
|
|
|
|
if (defined != (boolean *) NULL)
|
|
|
|
|
free (defined);
|
|
|
|
|
if (included != (boolean *) NULL)
|
|
|
|
|
free (included);
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
1997-06-23 22:06:29 +00:00
|
|
|
|
/* This function is called when we want to define a new symbol. It
|
|
|
|
|
handles the various cases which arise when we find a definition in
|
|
|
|
|
a dynamic object, or when there is already a definition in a
|
|
|
|
|
dynamic object. The new symbol is described by NAME, SYM, PSEC,
|
|
|
|
|
and PVALUE. We set SYM_HASH to the hash table entry. We set
|
|
|
|
|
OVERRIDE if the old symbol is overriding a new definition. We set
|
|
|
|
|
TYPE_CHANGE_OK if it is OK for the type to change. We set
|
|
|
|
|
SIZE_CHANGE_OK if it is OK for the size to change. By OK to
|
|
|
|
|
change, we mean that we shouldn't warn if the type or size does
|
|
|
|
|
change. */
|
|
|
|
|
|
|
|
|
|
static boolean
|
|
|
|
|
elf_merge_symbol (abfd, info, name, sym, psec, pvalue, sym_hash,
|
|
|
|
|
override, type_change_ok, size_change_ok)
|
|
|
|
|
bfd *abfd;
|
|
|
|
|
struct bfd_link_info *info;
|
|
|
|
|
const char *name;
|
|
|
|
|
Elf_Internal_Sym *sym;
|
|
|
|
|
asection **psec;
|
|
|
|
|
bfd_vma *pvalue;
|
|
|
|
|
struct elf_link_hash_entry **sym_hash;
|
|
|
|
|
boolean *override;
|
|
|
|
|
boolean *type_change_ok;
|
|
|
|
|
boolean *size_change_ok;
|
|
|
|
|
{
|
|
|
|
|
asection *sec;
|
|
|
|
|
struct elf_link_hash_entry *h;
|
|
|
|
|
int bind;
|
|
|
|
|
bfd *oldbfd;
|
|
|
|
|
boolean newdyn, olddyn, olddef, newdef, newdyncommon, olddyncommon;
|
|
|
|
|
|
|
|
|
|
*override = false;
|
|
|
|
|
|
|
|
|
|
sec = *psec;
|
|
|
|
|
bind = ELF_ST_BIND (sym->st_info);
|
|
|
|
|
|
|
|
|
|
if (! bfd_is_und_section (sec))
|
|
|
|
|
h = elf_link_hash_lookup (elf_hash_table (info), name, true, false, false);
|
|
|
|
|
else
|
|
|
|
|
h = ((struct elf_link_hash_entry *)
|
|
|
|
|
bfd_wrapped_link_hash_lookup (abfd, info, name, true, false, false));
|
|
|
|
|
if (h == NULL)
|
|
|
|
|
return false;
|
|
|
|
|
*sym_hash = h;
|
|
|
|
|
|
1997-09-25 16:16:11 +00:00
|
|
|
|
/* This code is for coping with dynamic objects, and is only useful
|
|
|
|
|
if we are doing an ELF link. */
|
|
|
|
|
if (info->hash->creator != abfd->xvec)
|
|
|
|
|
return true;
|
|
|
|
|
|
1997-06-25 16:45:12 +00:00
|
|
|
|
/* For merging, we only care about real symbols. */
|
|
|
|
|
|
|
|
|
|
while (h->root.type == bfd_link_hash_indirect
|
|
|
|
|
|| h->root.type == bfd_link_hash_warning)
|
|
|
|
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
|
|
|
|
|
1997-06-23 22:06:29 +00:00
|
|
|
|
/* If we just created the symbol, mark it as being an ELF symbol.
|
|
|
|
|
Other than that, there is nothing to do--there is no merge issue
|
|
|
|
|
with a newly defined symbol--so we just return. */
|
|
|
|
|
|
|
|
|
|
if (h->root.type == bfd_link_hash_new)
|
|
|
|
|
{
|
|
|
|
|
h->elf_link_hash_flags &=~ ELF_LINK_NON_ELF;
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* OLDBFD is a BFD associated with the existing symbol. */
|
|
|
|
|
|
|
|
|
|
switch (h->root.type)
|
|
|
|
|
{
|
|
|
|
|
default:
|
|
|
|
|
oldbfd = NULL;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case bfd_link_hash_undefined:
|
|
|
|
|
case bfd_link_hash_undefweak:
|
|
|
|
|
oldbfd = h->root.u.undef.abfd;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case bfd_link_hash_defined:
|
|
|
|
|
case bfd_link_hash_defweak:
|
|
|
|
|
oldbfd = h->root.u.def.section->owner;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case bfd_link_hash_common:
|
|
|
|
|
oldbfd = h->root.u.c.p->section->owner;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* NEWDYN and OLDDYN indicate whether the new or old symbol,
|
|
|
|
|
respectively, is from a dynamic object. */
|
|
|
|
|
|
|
|
|
|
if ((abfd->flags & DYNAMIC) != 0)
|
|
|
|
|
newdyn = true;
|
|
|
|
|
else
|
|
|
|
|
newdyn = false;
|
|
|
|
|
|
|
|
|
|
if (oldbfd == NULL || (oldbfd->flags & DYNAMIC) == 0)
|
|
|
|
|
olddyn = false;
|
|
|
|
|
else
|
|
|
|
|
olddyn = true;
|
|
|
|
|
|
|
|
|
|
/* NEWDEF and OLDDEF indicate whether the new or old symbol,
|
|
|
|
|
respectively, appear to be a definition rather than reference. */
|
|
|
|
|
|
|
|
|
|
if (bfd_is_und_section (sec) || bfd_is_com_section (sec))
|
|
|
|
|
newdef = false;
|
|
|
|
|
else
|
|
|
|
|
newdef = true;
|
|
|
|
|
|
|
|
|
|
if (h->root.type == bfd_link_hash_undefined
|
|
|
|
|
|| h->root.type == bfd_link_hash_undefweak
|
|
|
|
|
|| h->root.type == bfd_link_hash_common)
|
|
|
|
|
olddef = false;
|
|
|
|
|
else
|
|
|
|
|
olddef = true;
|
|
|
|
|
|
|
|
|
|
/* NEWDYNCOMMON and OLDDYNCOMMON indicate whether the new or old
|
|
|
|
|
symbol, respectively, appears to be a common symbol in a dynamic
|
|
|
|
|
object. If a symbol appears in an uninitialized section, and is
|
|
|
|
|
not weak, and is not a function, then it may be a common symbol
|
|
|
|
|
which was resolved when the dynamic object was created. We want
|
|
|
|
|
to treat such symbols specially, because they raise special
|
|
|
|
|
considerations when setting the symbol size: if the symbol
|
|
|
|
|
appears as a common symbol in a regular object, and the size in
|
|
|
|
|
the regular object is larger, we must make sure that we use the
|
|
|
|
|
larger size. This problematic case can always be avoided in C,
|
|
|
|
|
but it must be handled correctly when using Fortran shared
|
|
|
|
|
libraries.
|
|
|
|
|
|
|
|
|
|
Note that if NEWDYNCOMMON is set, NEWDEF will be set, and
|
|
|
|
|
likewise for OLDDYNCOMMON and OLDDEF.
|
|
|
|
|
|
|
|
|
|
Note that this test is just a heuristic, and that it is quite
|
|
|
|
|
possible to have an uninitialized symbol in a shared object which
|
|
|
|
|
is really a definition, rather than a common symbol. This could
|
|
|
|
|
lead to some minor confusion when the symbol really is a common
|
|
|
|
|
symbol in some regular object. However, I think it will be
|
|
|
|
|
harmless. */
|
|
|
|
|
|
|
|
|
|
if (newdyn
|
|
|
|
|
&& newdef
|
|
|
|
|
&& (sec->flags & SEC_ALLOC) != 0
|
|
|
|
|
&& (sec->flags & SEC_LOAD) == 0
|
|
|
|
|
&& sym->st_size > 0
|
|
|
|
|
&& bind != STB_WEAK
|
|
|
|
|
&& ELF_ST_TYPE (sym->st_info) != STT_FUNC)
|
|
|
|
|
newdyncommon = true;
|
|
|
|
|
else
|
|
|
|
|
newdyncommon = false;
|
|
|
|
|
|
|
|
|
|
if (olddyn
|
|
|
|
|
&& olddef
|
|
|
|
|
&& h->root.type == bfd_link_hash_defined
|
|
|
|
|
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
|
|
|
|
|
&& (h->root.u.def.section->flags & SEC_ALLOC) != 0
|
|
|
|
|
&& (h->root.u.def.section->flags & SEC_LOAD) == 0
|
|
|
|
|
&& h->size > 0
|
|
|
|
|
&& h->type != STT_FUNC)
|
|
|
|
|
olddyncommon = true;
|
|
|
|
|
else
|
|
|
|
|
olddyncommon = false;
|
|
|
|
|
|
|
|
|
|
/* It's OK to change the type if either the existing symbol or the
|
|
|
|
|
new symbol is weak. */
|
|
|
|
|
|
|
|
|
|
if (h->root.type == bfd_link_hash_defweak
|
|
|
|
|
|| h->root.type == bfd_link_hash_undefweak
|
|
|
|
|
|| bind == STB_WEAK)
|
|
|
|
|
*type_change_ok = true;
|
|
|
|
|
|
|
|
|
|
/* It's OK to change the size if either the existing symbol or the
|
|
|
|
|
new symbol is weak, or if the old symbol is undefined. */
|
|
|
|
|
|
|
|
|
|
if (*type_change_ok
|
|
|
|
|
|| h->root.type == bfd_link_hash_undefined)
|
|
|
|
|
*size_change_ok = true;
|
|
|
|
|
|
|
|
|
|
/* If both the old and the new symbols look like common symbols in a
|
|
|
|
|
dynamic object, set the size of the symbol to the larger of the
|
|
|
|
|
two. */
|
|
|
|
|
|
|
|
|
|
if (olddyncommon
|
|
|
|
|
&& newdyncommon
|
|
|
|
|
&& sym->st_size != h->size)
|
|
|
|
|
{
|
|
|
|
|
/* Since we think we have two common symbols, issue a multiple
|
|
|
|
|
common warning if desired. Note that we only warn if the
|
|
|
|
|
size is different. If the size is the same, we simply let
|
|
|
|
|
the old symbol override the new one as normally happens with
|
|
|
|
|
symbols defined in dynamic objects. */
|
|
|
|
|
|
|
|
|
|
if (! ((*info->callbacks->multiple_common)
|
|
|
|
|
(info, h->root.root.string, oldbfd, bfd_link_hash_common,
|
|
|
|
|
h->size, abfd, bfd_link_hash_common, sym->st_size)))
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
if (sym->st_size > h->size)
|
|
|
|
|
h->size = sym->st_size;
|
|
|
|
|
|
|
|
|
|
*size_change_ok = true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If we are looking at a dynamic object, and we have found a
|
|
|
|
|
definition, we need to see if the symbol was already defined by
|
|
|
|
|
some other object. If so, we want to use the existing
|
|
|
|
|
definition, and we do not want to report a multiple symbol
|
|
|
|
|
definition error; we do this by clobbering *PSEC to be
|
|
|
|
|
bfd_und_section_ptr.
|
|
|
|
|
|
|
|
|
|
We treat a common symbol as a definition if the symbol in the
|
|
|
|
|
shared library is a function, since common symbols always
|
|
|
|
|
represent variables; this can cause confusion in principle, but
|
|
|
|
|
any such confusion would seem to indicate an erroneous program or
|
|
|
|
|
shared library. We also permit a common symbol in a regular
|
|
|
|
|
object to override a weak symbol in a shared object. */
|
|
|
|
|
|
|
|
|
|
if (newdyn
|
|
|
|
|
&& newdef
|
|
|
|
|
&& (olddef
|
|
|
|
|
|| (h->root.type == bfd_link_hash_common
|
|
|
|
|
&& (bind == STB_WEAK
|
|
|
|
|
|| ELF_ST_TYPE (sym->st_info) == STT_FUNC))))
|
|
|
|
|
{
|
|
|
|
|
*override = true;
|
|
|
|
|
newdef = false;
|
|
|
|
|
newdyncommon = false;
|
|
|
|
|
|
|
|
|
|
*psec = sec = bfd_und_section_ptr;
|
|
|
|
|
*size_change_ok = true;
|
|
|
|
|
|
|
|
|
|
/* If we get here when the old symbol is a common symbol, then
|
|
|
|
|
we are explicitly letting it override a weak symbol or
|
|
|
|
|
function in a dynamic object, and we don't want to warn about
|
|
|
|
|
a type change. If the old symbol is a defined symbol, a type
|
|
|
|
|
change warning may still be appropriate. */
|
|
|
|
|
|
|
|
|
|
if (h->root.type == bfd_link_hash_common)
|
|
|
|
|
*type_change_ok = true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Handle the special case of an old common symbol merging with a
|
|
|
|
|
new symbol which looks like a common symbol in a shared object.
|
|
|
|
|
We change *PSEC and *PVALUE to make the new symbol look like a
|
|
|
|
|
common symbol, and let _bfd_generic_link_add_one_symbol will do
|
|
|
|
|
the right thing. */
|
|
|
|
|
|
|
|
|
|
if (newdyncommon
|
|
|
|
|
&& h->root.type == bfd_link_hash_common)
|
|
|
|
|
{
|
|
|
|
|
*override = true;
|
|
|
|
|
newdef = false;
|
|
|
|
|
newdyncommon = false;
|
|
|
|
|
*pvalue = sym->st_size;
|
|
|
|
|
*psec = sec = bfd_com_section_ptr;
|
|
|
|
|
*size_change_ok = true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If the old symbol is from a dynamic object, and the new symbol is
|
|
|
|
|
a definition which is not from a dynamic object, then the new
|
|
|
|
|
symbol overrides the old symbol. Symbols from regular files
|
|
|
|
|
always take precedence over symbols from dynamic objects, even if
|
|
|
|
|
they are defined after the dynamic object in the link.
|
|
|
|
|
|
|
|
|
|
As above, we again permit a common symbol in a regular object to
|
|
|
|
|
override a definition in a shared object if the shared object
|
|
|
|
|
symbol is a function or is weak. */
|
|
|
|
|
|
|
|
|
|
if (! newdyn
|
|
|
|
|
&& (newdef
|
|
|
|
|
|| (bfd_is_com_section (sec)
|
|
|
|
|
&& (h->root.type == bfd_link_hash_defweak
|
|
|
|
|
|| h->type == STT_FUNC)))
|
|
|
|
|
&& olddyn
|
|
|
|
|
&& olddef
|
|
|
|
|
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0)
|
|
|
|
|
{
|
|
|
|
|
/* Change the hash table entry to undefined, and let
|
|
|
|
|
_bfd_generic_link_add_one_symbol do the right thing with the
|
|
|
|
|
new definition. */
|
|
|
|
|
|
|
|
|
|
h->root.type = bfd_link_hash_undefined;
|
|
|
|
|
h->root.u.undef.abfd = h->root.u.def.section->owner;
|
|
|
|
|
*size_change_ok = true;
|
|
|
|
|
|
|
|
|
|
olddef = false;
|
|
|
|
|
olddyncommon = false;
|
|
|
|
|
|
|
|
|
|
/* We again permit a type change when a common symbol may be
|
|
|
|
|
overriding a function. */
|
|
|
|
|
|
|
|
|
|
if (bfd_is_com_section (sec))
|
|
|
|
|
*type_change_ok = true;
|
|
|
|
|
|
|
|
|
|
/* This union may have been set to be non-NULL when this symbol
|
|
|
|
|
was seen in a dynamic object. We must force the union to be
|
|
|
|
|
NULL, so that it is correct for a regular symbol. */
|
|
|
|
|
|
|
|
|
|
h->verinfo.vertree = NULL;
|
1997-06-24 02:28:03 +00:00
|
|
|
|
|
|
|
|
|
/* In this special case, if H is the target of an indirection,
|
|
|
|
|
we want the caller to frob with H rather than with the
|
|
|
|
|
indirect symbol. That will permit the caller to redefine the
|
|
|
|
|
target of the indirection, rather than the indirect symbol
|
1997-06-24 14:34:47 +00:00
|
|
|
|
itself. FIXME: This will break the -y option if we store a
|
|
|
|
|
symbol with a different name. */
|
1997-06-24 02:28:03 +00:00
|
|
|
|
*sym_hash = h;
|
1997-06-23 22:06:29 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Handle the special case of a new common symbol merging with an
|
|
|
|
|
old symbol that looks like it might be a common symbol defined in
|
|
|
|
|
a shared object. Note that we have already handled the case in
|
|
|
|
|
which a new common symbol should simply override the definition
|
|
|
|
|
in the shared library. */
|
|
|
|
|
|
|
|
|
|
if (! newdyn
|
|
|
|
|
&& bfd_is_com_section (sec)
|
|
|
|
|
&& olddyncommon)
|
|
|
|
|
{
|
|
|
|
|
/* It would be best if we could set the hash table entry to a
|
|
|
|
|
common symbol, but we don't know what to use for the section
|
|
|
|
|
or the alignment. */
|
|
|
|
|
if (! ((*info->callbacks->multiple_common)
|
|
|
|
|
(info, h->root.root.string, oldbfd, bfd_link_hash_common,
|
|
|
|
|
h->size, abfd, bfd_link_hash_common, sym->st_size)))
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
/* If the predumed common symbol in the dynamic object is
|
|
|
|
|
larger, pretend that the new symbol has its size. */
|
|
|
|
|
|
|
|
|
|
if (h->size > *pvalue)
|
|
|
|
|
*pvalue = h->size;
|
|
|
|
|
|
|
|
|
|
/* FIXME: We no longer know the alignment required by the symbol
|
|
|
|
|
in the dynamic object, so we just wind up using the one from
|
|
|
|
|
the regular object. */
|
|
|
|
|
|
|
|
|
|
olddef = false;
|
|
|
|
|
olddyncommon = false;
|
|
|
|
|
|
|
|
|
|
h->root.type = bfd_link_hash_undefined;
|
|
|
|
|
h->root.u.undef.abfd = h->root.u.def.section->owner;
|
|
|
|
|
|
|
|
|
|
*size_change_ok = true;
|
|
|
|
|
*type_change_ok = true;
|
|
|
|
|
|
|
|
|
|
h->verinfo.vertree = NULL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
/* Add symbols from an ELF object file to the linker hash table. */
|
|
|
|
|
|
|
|
|
|
static boolean
|
|
|
|
|
elf_link_add_object_symbols (abfd, info)
|
|
|
|
|
bfd *abfd;
|
|
|
|
|
struct bfd_link_info *info;
|
|
|
|
|
{
|
|
|
|
|
boolean (*add_symbol_hook) PARAMS ((bfd *, struct bfd_link_info *,
|
|
|
|
|
const Elf_Internal_Sym *,
|
|
|
|
|
const char **, flagword *,
|
|
|
|
|
asection **, bfd_vma *));
|
|
|
|
|
boolean (*check_relocs) PARAMS ((bfd *, struct bfd_link_info *,
|
|
|
|
|
asection *, const Elf_Internal_Rela *));
|
|
|
|
|
boolean collect;
|
|
|
|
|
Elf_Internal_Shdr *hdr;
|
|
|
|
|
size_t symcount;
|
|
|
|
|
size_t extsymcount;
|
|
|
|
|
size_t extsymoff;
|
|
|
|
|
Elf_External_Sym *buf = NULL;
|
|
|
|
|
struct elf_link_hash_entry **sym_hash;
|
|
|
|
|
boolean dynamic;
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
bfd_byte *dynver = NULL;
|
|
|
|
|
Elf_External_Versym *extversym = NULL;
|
|
|
|
|
Elf_External_Versym *ever;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
Elf_External_Dyn *dynbuf = NULL;
|
|
|
|
|
struct elf_link_hash_entry *weaks;
|
|
|
|
|
Elf_External_Sym *esym;
|
|
|
|
|
Elf_External_Sym *esymend;
|
|
|
|
|
|
|
|
|
|
add_symbol_hook = get_elf_backend_data (abfd)->elf_add_symbol_hook;
|
|
|
|
|
collect = get_elf_backend_data (abfd)->collect;
|
|
|
|
|
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
if ((abfd->flags & DYNAMIC) == 0)
|
|
|
|
|
dynamic = false;
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
dynamic = true;
|
|
|
|
|
|
|
|
|
|
/* You can't use -r against a dynamic object. Also, there's no
|
|
|
|
|
hope of using a dynamic object which does not exactly match
|
|
|
|
|
the format of the output file. */
|
|
|
|
|
if (info->relocateable || info->hash->creator != abfd->xvec)
|
|
|
|
|
{
|
|
|
|
|
bfd_set_error (bfd_error_invalid_operation);
|
|
|
|
|
goto error_return;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
1995-09-01 18:08:28 +00:00
|
|
|
|
/* As a GNU extension, any input sections which are named
|
|
|
|
|
.gnu.warning.SYMBOL are treated as warning symbols for the given
|
|
|
|
|
symbol. This differs from .gnu.warning sections, which generate
|
|
|
|
|
warnings when they are included in an output file. */
|
|
|
|
|
if (! info->shared)
|
|
|
|
|
{
|
|
|
|
|
asection *s;
|
|
|
|
|
|
|
|
|
|
for (s = abfd->sections; s != NULL; s = s->next)
|
|
|
|
|
{
|
|
|
|
|
const char *name;
|
|
|
|
|
|
|
|
|
|
name = bfd_get_section_name (abfd, s);
|
|
|
|
|
if (strncmp (name, ".gnu.warning.", sizeof ".gnu.warning." - 1) == 0)
|
|
|
|
|
{
|
|
|
|
|
char *msg;
|
|
|
|
|
bfd_size_type sz;
|
|
|
|
|
|
1997-02-15 00:12:47 +00:00
|
|
|
|
name += sizeof ".gnu.warning." - 1;
|
|
|
|
|
|
|
|
|
|
/* If this is a shared object, then look up the symbol
|
|
|
|
|
in the hash table. If it is there, and it is already
|
|
|
|
|
been defined, then we will not be using the entry
|
|
|
|
|
from this shared object, so we don't need to warn.
|
|
|
|
|
FIXME: If we see the definition in a regular object
|
|
|
|
|
later on, we will warn, but we shouldn't. The only
|
|
|
|
|
fix is to keep track of what warnings we are supposed
|
|
|
|
|
to emit, and then handle them all at the end of the
|
|
|
|
|
link. */
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
if (dynamic && abfd->xvec == info->hash->creator)
|
1997-02-15 00:12:47 +00:00
|
|
|
|
{
|
|
|
|
|
struct elf_link_hash_entry *h;
|
|
|
|
|
|
|
|
|
|
h = elf_link_hash_lookup (elf_hash_table (info), name,
|
|
|
|
|
false, false, true);
|
|
|
|
|
|
|
|
|
|
/* FIXME: What about bfd_link_hash_common? */
|
|
|
|
|
if (h != NULL
|
|
|
|
|
&& (h->root.type == bfd_link_hash_defined
|
|
|
|
|
|| h->root.type == bfd_link_hash_defweak))
|
|
|
|
|
{
|
|
|
|
|
/* We don't want to issue this warning. Clobber
|
|
|
|
|
the section size so that the warning does not
|
|
|
|
|
get copied into the output file. */
|
|
|
|
|
s->_raw_size = 0;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
1995-09-01 18:08:28 +00:00
|
|
|
|
sz = bfd_section_size (abfd, s);
|
|
|
|
|
msg = (char *) bfd_alloc (abfd, sz);
|
|
|
|
|
if (msg == NULL)
|
1995-11-29 22:05:37 +00:00
|
|
|
|
goto error_return;
|
1995-09-01 18:08:28 +00:00
|
|
|
|
|
|
|
|
|
if (! bfd_get_section_contents (abfd, s, msg, (file_ptr) 0, sz))
|
|
|
|
|
goto error_return;
|
|
|
|
|
|
|
|
|
|
if (! (_bfd_generic_link_add_one_symbol
|
1997-02-15 00:12:47 +00:00
|
|
|
|
(info, abfd, name, BSF_WARNING, s, (bfd_vma) 0, msg,
|
|
|
|
|
false, collect, (struct bfd_link_hash_entry **) NULL)))
|
1995-09-01 18:08:28 +00:00
|
|
|
|
goto error_return;
|
|
|
|
|
|
|
|
|
|
if (! info->relocateable)
|
|
|
|
|
{
|
|
|
|
|
/* Clobber the section size so that the warning does
|
|
|
|
|
not get copied into the output file. */
|
|
|
|
|
s->_raw_size = 0;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
/* If this is a dynamic object, we always link against the .dynsym
|
|
|
|
|
symbol table, not the .symtab symbol table. The dynamic linker
|
|
|
|
|
will only see the .dynsym symbol table, so there is no reason to
|
|
|
|
|
look at .symtab for a dynamic object. */
|
|
|
|
|
|
|
|
|
|
if (! dynamic || elf_dynsymtab (abfd) == 0)
|
|
|
|
|
hdr = &elf_tdata (abfd)->symtab_hdr;
|
|
|
|
|
else
|
|
|
|
|
hdr = &elf_tdata (abfd)->dynsymtab_hdr;
|
|
|
|
|
|
|
|
|
|
if (dynamic)
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
{
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
/* Read in any version definitions. */
|
|
|
|
|
|
1997-06-10 21:46:23 +00:00
|
|
|
|
if (! _bfd_elf_slurp_version_tables (abfd))
|
|
|
|
|
goto error_return;
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
|
|
|
|
|
/* Read in the symbol versions, but don't bother to convert them
|
|
|
|
|
to internal format. */
|
|
|
|
|
if (elf_dynversym (abfd) != 0)
|
|
|
|
|
{
|
|
|
|
|
Elf_Internal_Shdr *versymhdr;
|
|
|
|
|
|
|
|
|
|
versymhdr = &elf_tdata (abfd)->dynversym_hdr;
|
|
|
|
|
extversym = (Elf_External_Versym *) bfd_malloc (hdr->sh_size);
|
|
|
|
|
if (extversym == NULL)
|
|
|
|
|
goto error_return;
|
|
|
|
|
if (bfd_seek (abfd, versymhdr->sh_offset, SEEK_SET) != 0
|
|
|
|
|
|| (bfd_read ((PTR) extversym, 1, versymhdr->sh_size, abfd)
|
|
|
|
|
!= versymhdr->sh_size))
|
|
|
|
|
goto error_return;
|
|
|
|
|
}
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
symcount = hdr->sh_size / sizeof (Elf_External_Sym);
|
|
|
|
|
|
|
|
|
|
/* The sh_info field of the symtab header tells us where the
|
|
|
|
|
external symbols start. We don't care about the local symbols at
|
|
|
|
|
this point. */
|
|
|
|
|
if (elf_bad_symtab (abfd))
|
|
|
|
|
{
|
|
|
|
|
extsymcount = symcount;
|
|
|
|
|
extsymoff = 0;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
extsymcount = symcount - hdr->sh_info;
|
|
|
|
|
extsymoff = hdr->sh_info;
|
|
|
|
|
}
|
|
|
|
|
|
1995-12-01 19:48:10 +00:00
|
|
|
|
buf = ((Elf_External_Sym *)
|
|
|
|
|
bfd_malloc (extsymcount * sizeof (Elf_External_Sym)));
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
if (buf == NULL && extsymcount != 0)
|
1995-12-01 19:48:10 +00:00
|
|
|
|
goto error_return;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
|
|
|
|
/* We store a pointer to the hash table entry for each external
|
|
|
|
|
symbol. */
|
|
|
|
|
sym_hash = ((struct elf_link_hash_entry **)
|
|
|
|
|
bfd_alloc (abfd,
|
|
|
|
|
extsymcount * sizeof (struct elf_link_hash_entry *)));
|
|
|
|
|
if (sym_hash == NULL)
|
1995-11-29 22:05:37 +00:00
|
|
|
|
goto error_return;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
elf_sym_hashes (abfd) = sym_hash;
|
|
|
|
|
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
if (! dynamic)
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
{
|
|
|
|
|
/* If we are creating a shared library, create all the dynamic
|
|
|
|
|
sections immediately. We need to attach them to something,
|
|
|
|
|
so we attach them to this BFD, provided it is the right
|
|
|
|
|
format. FIXME: If there are no input BFD's of the same
|
|
|
|
|
format as the output, we can't make a shared library. */
|
|
|
|
|
if (info->shared
|
|
|
|
|
&& ! elf_hash_table (info)->dynamic_sections_created
|
|
|
|
|
&& abfd->xvec == info->hash->creator)
|
|
|
|
|
{
|
|
|
|
|
if (! elf_link_create_dynamic_sections (abfd, info))
|
|
|
|
|
goto error_return;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
asection *s;
|
|
|
|
|
boolean add_needed;
|
|
|
|
|
const char *name;
|
|
|
|
|
bfd_size_type oldsize;
|
|
|
|
|
bfd_size_type strindex;
|
|
|
|
|
|
|
|
|
|
/* Find the name to use in a DT_NEEDED entry that refers to this
|
|
|
|
|
object. If the object has a DT_SONAME entry, we use it.
|
|
|
|
|
Otherwise, if the generic linker stuck something in
|
1996-02-19 17:41:04 +00:00
|
|
|
|
elf_dt_name, we use that. Otherwise, we just use the file
|
|
|
|
|
name. If the generic linker put a null string into
|
|
|
|
|
elf_dt_name, we don't make a DT_NEEDED entry at all, even if
|
|
|
|
|
there is a DT_SONAME entry. */
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
add_needed = true;
|
|
|
|
|
name = bfd_get_filename (abfd);
|
1996-02-19 17:41:04 +00:00
|
|
|
|
if (elf_dt_name (abfd) != NULL)
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
{
|
1996-02-19 17:41:04 +00:00
|
|
|
|
name = elf_dt_name (abfd);
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
if (*name == '\0')
|
|
|
|
|
add_needed = false;
|
|
|
|
|
}
|
|
|
|
|
s = bfd_get_section_by_name (abfd, ".dynamic");
|
|
|
|
|
if (s != NULL)
|
|
|
|
|
{
|
|
|
|
|
Elf_External_Dyn *extdyn;
|
|
|
|
|
Elf_External_Dyn *extdynend;
|
|
|
|
|
int elfsec;
|
|
|
|
|
unsigned long link;
|
|
|
|
|
|
1995-12-01 19:48:10 +00:00
|
|
|
|
dynbuf = (Elf_External_Dyn *) bfd_malloc ((size_t) s->_raw_size);
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
if (dynbuf == NULL)
|
1995-12-01 19:48:10 +00:00
|
|
|
|
goto error_return;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
|
|
|
|
if (! bfd_get_section_contents (abfd, s, (PTR) dynbuf,
|
|
|
|
|
(file_ptr) 0, s->_raw_size))
|
|
|
|
|
goto error_return;
|
|
|
|
|
|
|
|
|
|
elfsec = _bfd_elf_section_from_bfd_section (abfd, s);
|
|
|
|
|
if (elfsec == -1)
|
|
|
|
|
goto error_return;
|
|
|
|
|
link = elf_elfsections (abfd)[elfsec]->sh_link;
|
|
|
|
|
|
|
|
|
|
extdyn = dynbuf;
|
|
|
|
|
extdynend = extdyn + s->_raw_size / sizeof (Elf_External_Dyn);
|
|
|
|
|
for (; extdyn < extdynend; extdyn++)
|
|
|
|
|
{
|
|
|
|
|
Elf_Internal_Dyn dyn;
|
|
|
|
|
|
|
|
|
|
elf_swap_dyn_in (abfd, extdyn, &dyn);
|
1996-02-19 17:41:04 +00:00
|
|
|
|
if (dyn.d_tag == DT_SONAME)
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
{
|
|
|
|
|
name = bfd_elf_string_from_elf_section (abfd, link,
|
|
|
|
|
dyn.d_un.d_val);
|
|
|
|
|
if (name == NULL)
|
|
|
|
|
goto error_return;
|
|
|
|
|
}
|
|
|
|
|
if (dyn.d_tag == DT_NEEDED)
|
|
|
|
|
{
|
1995-10-16 23:10:56 +00:00
|
|
|
|
struct bfd_link_needed_list *n, **pn;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
char *fnm, *anm;
|
|
|
|
|
|
1995-10-16 23:10:56 +00:00
|
|
|
|
n = ((struct bfd_link_needed_list *)
|
|
|
|
|
bfd_alloc (abfd, sizeof (struct bfd_link_needed_list)));
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
fnm = bfd_elf_string_from_elf_section (abfd, link,
|
|
|
|
|
dyn.d_un.d_val);
|
|
|
|
|
if (n == NULL || fnm == NULL)
|
|
|
|
|
goto error_return;
|
|
|
|
|
anm = bfd_alloc (abfd, strlen (fnm) + 1);
|
|
|
|
|
if (anm == NULL)
|
|
|
|
|
goto error_return;
|
|
|
|
|
strcpy (anm, fnm);
|
|
|
|
|
n->name = anm;
|
|
|
|
|
n->by = abfd;
|
|
|
|
|
n->next = NULL;
|
|
|
|
|
for (pn = &elf_hash_table (info)->needed;
|
|
|
|
|
*pn != NULL;
|
|
|
|
|
pn = &(*pn)->next)
|
|
|
|
|
;
|
|
|
|
|
*pn = n;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
free (dynbuf);
|
|
|
|
|
dynbuf = NULL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* We do not want to include any of the sections in a dynamic
|
|
|
|
|
object in the output file. We hack by simply clobbering the
|
|
|
|
|
list of sections in the BFD. This could be handled more
|
|
|
|
|
cleanly by, say, a new section flag; the existing
|
|
|
|
|
SEC_NEVER_LOAD flag is not the one we want, because that one
|
|
|
|
|
still implies that the section takes up space in the output
|
|
|
|
|
file. */
|
|
|
|
|
abfd->sections = NULL;
|
1995-12-08 22:47:28 +00:00
|
|
|
|
abfd->section_count = 0;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
|
|
|
|
/* If this is the first dynamic object found in the link, create
|
|
|
|
|
the special sections required for dynamic linking. */
|
|
|
|
|
if (! elf_hash_table (info)->dynamic_sections_created)
|
|
|
|
|
{
|
|
|
|
|
if (! elf_link_create_dynamic_sections (abfd, info))
|
|
|
|
|
goto error_return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (add_needed)
|
|
|
|
|
{
|
|
|
|
|
/* Add a DT_NEEDED entry for this dynamic object. */
|
|
|
|
|
oldsize = _bfd_stringtab_size (elf_hash_table (info)->dynstr);
|
|
|
|
|
strindex = _bfd_stringtab_add (elf_hash_table (info)->dynstr, name,
|
|
|
|
|
true, false);
|
|
|
|
|
if (strindex == (bfd_size_type) -1)
|
|
|
|
|
goto error_return;
|
|
|
|
|
|
|
|
|
|
if (oldsize == _bfd_stringtab_size (elf_hash_table (info)->dynstr))
|
|
|
|
|
{
|
|
|
|
|
asection *sdyn;
|
|
|
|
|
Elf_External_Dyn *dyncon, *dynconend;
|
|
|
|
|
|
|
|
|
|
/* The hash table size did not change, which means that
|
|
|
|
|
the dynamic object name was already entered. If we
|
|
|
|
|
have already included this dynamic object in the
|
|
|
|
|
link, just ignore it. There is no reason to include
|
|
|
|
|
a particular dynamic object more than once. */
|
|
|
|
|
sdyn = bfd_get_section_by_name (elf_hash_table (info)->dynobj,
|
|
|
|
|
".dynamic");
|
|
|
|
|
BFD_ASSERT (sdyn != NULL);
|
|
|
|
|
|
|
|
|
|
dyncon = (Elf_External_Dyn *) sdyn->contents;
|
|
|
|
|
dynconend = (Elf_External_Dyn *) (sdyn->contents +
|
|
|
|
|
sdyn->_raw_size);
|
|
|
|
|
for (; dyncon < dynconend; dyncon++)
|
|
|
|
|
{
|
|
|
|
|
Elf_Internal_Dyn dyn;
|
|
|
|
|
|
|
|
|
|
elf_swap_dyn_in (elf_hash_table (info)->dynobj, dyncon,
|
|
|
|
|
&dyn);
|
|
|
|
|
if (dyn.d_tag == DT_NEEDED
|
|
|
|
|
&& dyn.d_un.d_val == strindex)
|
|
|
|
|
{
|
|
|
|
|
if (buf != NULL)
|
|
|
|
|
free (buf);
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
if (extversym != NULL)
|
|
|
|
|
free (extversym);
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (! elf_add_dynamic_entry (info, DT_NEEDED, strindex))
|
|
|
|
|
goto error_return;
|
|
|
|
|
}
|
1996-02-19 17:41:04 +00:00
|
|
|
|
|
|
|
|
|
/* Save the SONAME, if there is one, because sometimes the
|
|
|
|
|
linker emulation code will need to know it. */
|
|
|
|
|
if (*name == '\0')
|
|
|
|
|
name = bfd_get_filename (abfd);
|
|
|
|
|
elf_dt_name (abfd) = name;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (bfd_seek (abfd,
|
|
|
|
|
hdr->sh_offset + extsymoff * sizeof (Elf_External_Sym),
|
|
|
|
|
SEEK_SET) != 0
|
|
|
|
|
|| (bfd_read ((PTR) buf, sizeof (Elf_External_Sym), extsymcount, abfd)
|
|
|
|
|
!= extsymcount * sizeof (Elf_External_Sym)))
|
|
|
|
|
goto error_return;
|
|
|
|
|
|
|
|
|
|
weaks = NULL;
|
|
|
|
|
|
1997-03-13 02:41:44 +00:00
|
|
|
|
ever = extversym != NULL ? extversym + extsymoff : NULL;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
esymend = buf + extsymcount;
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
for (esym = buf;
|
|
|
|
|
esym < esymend;
|
|
|
|
|
esym++, sym_hash++, ever = (ever != NULL ? ever + 1 : NULL))
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
{
|
|
|
|
|
Elf_Internal_Sym sym;
|
|
|
|
|
int bind;
|
|
|
|
|
bfd_vma value;
|
|
|
|
|
asection *sec;
|
|
|
|
|
flagword flags;
|
|
|
|
|
const char *name;
|
1995-09-01 18:08:28 +00:00
|
|
|
|
struct elf_link_hash_entry *h;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
boolean definition;
|
1995-10-11 04:50:20 +00:00
|
|
|
|
boolean size_change_ok, type_change_ok;
|
1995-08-14 15:57:17 +00:00
|
|
|
|
boolean new_weakdef;
|
1997-05-16 16:13:33 +00:00
|
|
|
|
unsigned int old_alignment;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
|
|
|
|
elf_swap_symbol_in (abfd, esym, &sym);
|
|
|
|
|
|
|
|
|
|
flags = BSF_NO_FLAGS;
|
|
|
|
|
sec = NULL;
|
|
|
|
|
value = sym.st_value;
|
|
|
|
|
*sym_hash = NULL;
|
|
|
|
|
|
|
|
|
|
bind = ELF_ST_BIND (sym.st_info);
|
|
|
|
|
if (bind == STB_LOCAL)
|
|
|
|
|
{
|
|
|
|
|
/* This should be impossible, since ELF requires that all
|
|
|
|
|
global symbols follow all local symbols, and that sh_info
|
|
|
|
|
point to the first global symbol. Unfortunatealy, Irix 5
|
|
|
|
|
screws this up. */
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
else if (bind == STB_GLOBAL)
|
|
|
|
|
{
|
|
|
|
|
if (sym.st_shndx != SHN_UNDEF
|
|
|
|
|
&& sym.st_shndx != SHN_COMMON)
|
|
|
|
|
flags = BSF_GLOBAL;
|
|
|
|
|
else
|
|
|
|
|
flags = 0;
|
|
|
|
|
}
|
|
|
|
|
else if (bind == STB_WEAK)
|
|
|
|
|
flags = BSF_WEAK;
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* Leave it up to the processor backend. */
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (sym.st_shndx == SHN_UNDEF)
|
|
|
|
|
sec = bfd_und_section_ptr;
|
|
|
|
|
else if (sym.st_shndx > 0 && sym.st_shndx < SHN_LORESERVE)
|
|
|
|
|
{
|
|
|
|
|
sec = section_from_elf_index (abfd, sym.st_shndx);
|
1997-04-17 16:29:43 +00:00
|
|
|
|
if (sec == NULL)
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
sec = bfd_abs_section_ptr;
|
1997-04-17 16:29:43 +00:00
|
|
|
|
else if ((abfd->flags & (EXEC_P | DYNAMIC)) != 0)
|
|
|
|
|
value -= sec->vma;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
}
|
|
|
|
|
else if (sym.st_shndx == SHN_ABS)
|
|
|
|
|
sec = bfd_abs_section_ptr;
|
|
|
|
|
else if (sym.st_shndx == SHN_COMMON)
|
|
|
|
|
{
|
|
|
|
|
sec = bfd_com_section_ptr;
|
|
|
|
|
/* What ELF calls the size we call the value. What ELF
|
|
|
|
|
calls the value we call the alignment. */
|
|
|
|
|
value = sym.st_size;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* Leave it up to the processor backend. */
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
name = bfd_elf_string_from_elf_section (abfd, hdr->sh_link, sym.st_name);
|
|
|
|
|
if (name == (const char *) NULL)
|
|
|
|
|
goto error_return;
|
|
|
|
|
|
|
|
|
|
if (add_symbol_hook)
|
|
|
|
|
{
|
|
|
|
|
if (! (*add_symbol_hook) (abfd, info, &sym, &name, &flags, &sec,
|
|
|
|
|
&value))
|
|
|
|
|
goto error_return;
|
|
|
|
|
|
|
|
|
|
/* The hook function sets the name to NULL if this symbol
|
|
|
|
|
should be skipped for some reason. */
|
|
|
|
|
if (name == (const char *) NULL)
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Sanity check that all possibilities were handled. */
|
|
|
|
|
if (sec == (asection *) NULL)
|
|
|
|
|
{
|
|
|
|
|
bfd_set_error (bfd_error_bad_value);
|
|
|
|
|
goto error_return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (bfd_is_und_section (sec)
|
|
|
|
|
|| bfd_is_com_section (sec))
|
|
|
|
|
definition = false;
|
|
|
|
|
else
|
|
|
|
|
definition = true;
|
|
|
|
|
|
1995-10-11 04:50:20 +00:00
|
|
|
|
size_change_ok = false;
|
1996-01-11 21:06:42 +00:00
|
|
|
|
type_change_ok = get_elf_backend_data (abfd)->type_change_ok;
|
1997-05-16 16:13:33 +00:00
|
|
|
|
old_alignment = 0;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
if (info->hash->creator->flavour == bfd_target_elf_flavour)
|
|
|
|
|
{
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
Elf_Internal_Versym iver;
|
1998-03-27 21:30:53 +00:00
|
|
|
|
unsigned int vernum = 0;
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
boolean override;
|
|
|
|
|
|
|
|
|
|
if (ever != NULL)
|
|
|
|
|
{
|
|
|
|
|
_bfd_elf_swap_versym_in (abfd, ever, &iver);
|
|
|
|
|
vernum = iver.vs_vers & VERSYM_VERSION;
|
|
|
|
|
|
|
|
|
|
/* If this is a hidden symbol, or if it is not version
|
|
|
|
|
1, we append the version name to the symbol name.
|
|
|
|
|
However, we do not modify a non-hidden absolute
|
|
|
|
|
symbol, because it might be the version symbol
|
|
|
|
|
itself. FIXME: What if it isn't? */
|
|
|
|
|
if ((iver.vs_vers & VERSYM_HIDDEN) != 0
|
|
|
|
|
|| (vernum > 1 && ! bfd_is_abs_section (sec)))
|
|
|
|
|
{
|
|
|
|
|
const char *verstr;
|
|
|
|
|
int namelen, newlen;
|
|
|
|
|
char *newname, *p;
|
|
|
|
|
|
1997-06-10 21:46:23 +00:00
|
|
|
|
if (sym.st_shndx != SHN_UNDEF)
|
1997-03-13 02:41:44 +00:00
|
|
|
|
{
|
1997-06-10 21:46:23 +00:00
|
|
|
|
if (vernum > elf_tdata (abfd)->dynverdef_hdr.sh_info)
|
|
|
|
|
{
|
|
|
|
|
(*_bfd_error_handler)
|
1998-04-22 05:13:54 +00:00
|
|
|
|
(_("%s: %s: invalid version %u (max %d)"),
|
1997-06-10 21:46:23 +00:00
|
|
|
|
abfd->filename, name, vernum,
|
|
|
|
|
elf_tdata (abfd)->dynverdef_hdr.sh_info);
|
|
|
|
|
bfd_set_error (bfd_error_bad_value);
|
|
|
|
|
goto error_return;
|
|
|
|
|
}
|
|
|
|
|
else if (vernum > 1)
|
|
|
|
|
verstr =
|
|
|
|
|
elf_tdata (abfd)->verdef[vernum - 1].vd_nodename;
|
|
|
|
|
else
|
|
|
|
|
verstr = "";
|
1997-03-13 02:41:44 +00:00
|
|
|
|
}
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
else
|
1997-06-10 21:46:23 +00:00
|
|
|
|
{
|
|
|
|
|
/* We cannot simply test for the number of
|
|
|
|
|
entries in the VERNEED section since the
|
|
|
|
|
numbers for the needed versions do not start
|
|
|
|
|
at 0. */
|
|
|
|
|
Elf_Internal_Verneed *t;
|
|
|
|
|
|
|
|
|
|
verstr = NULL;
|
|
|
|
|
for (t = elf_tdata (abfd)->verref;
|
|
|
|
|
t != NULL;
|
|
|
|
|
t = t->vn_nextref)
|
|
|
|
|
{
|
|
|
|
|
Elf_Internal_Vernaux *a;
|
|
|
|
|
|
|
|
|
|
for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr)
|
|
|
|
|
{
|
|
|
|
|
if (a->vna_other == vernum)
|
|
|
|
|
{
|
|
|
|
|
verstr = a->vna_nodename;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if (a != NULL)
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
if (verstr == NULL)
|
|
|
|
|
{
|
|
|
|
|
(*_bfd_error_handler)
|
1998-04-22 05:13:54 +00:00
|
|
|
|
(_("%s: %s: invalid needed version %d"),
|
1997-06-10 21:46:23 +00:00
|
|
|
|
abfd->filename, name, vernum);
|
|
|
|
|
bfd_set_error (bfd_error_bad_value);
|
|
|
|
|
goto error_return;
|
|
|
|
|
}
|
|
|
|
|
}
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
|
|
|
|
|
namelen = strlen (name);
|
|
|
|
|
newlen = namelen + strlen (verstr) + 2;
|
|
|
|
|
if ((iver.vs_vers & VERSYM_HIDDEN) == 0)
|
|
|
|
|
++newlen;
|
|
|
|
|
|
|
|
|
|
newname = (char *) bfd_alloc (abfd, newlen);
|
|
|
|
|
if (newname == NULL)
|
|
|
|
|
goto error_return;
|
|
|
|
|
strcpy (newname, name);
|
|
|
|
|
p = newname + namelen;
|
|
|
|
|
*p++ = ELF_VER_CHR;
|
|
|
|
|
if ((iver.vs_vers & VERSYM_HIDDEN) == 0)
|
|
|
|
|
*p++ = ELF_VER_CHR;
|
|
|
|
|
strcpy (p, verstr);
|
|
|
|
|
|
|
|
|
|
name = newname;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
1997-06-23 22:06:29 +00:00
|
|
|
|
if (! elf_merge_symbol (abfd, info, name, &sym, &sec, &value,
|
|
|
|
|
sym_hash, &override, &type_change_ok,
|
|
|
|
|
&size_change_ok))
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
goto error_return;
|
|
|
|
|
|
1997-06-23 22:06:29 +00:00
|
|
|
|
if (override)
|
|
|
|
|
definition = false;
|
1996-02-01 23:15:23 +00:00
|
|
|
|
|
1997-06-23 22:06:29 +00:00
|
|
|
|
h = *sym_hash;
|
1995-09-01 18:08:28 +00:00
|
|
|
|
while (h->root.type == bfd_link_hash_indirect
|
|
|
|
|
|| h->root.type == bfd_link_hash_warning)
|
1997-06-18 23:02:58 +00:00
|
|
|
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
1995-09-01 18:08:28 +00:00
|
|
|
|
|
1997-06-23 22:06:29 +00:00
|
|
|
|
/* Remember the old alignment if this is a common symbol, so
|
|
|
|
|
that we don't reduce the alignment later on. We can't
|
|
|
|
|
check later, because _bfd_generic_link_add_one_symbol
|
|
|
|
|
will set a default for the alignment which we want to
|
|
|
|
|
override. */
|
1997-05-16 16:13:33 +00:00
|
|
|
|
if (h->root.type == bfd_link_hash_common)
|
|
|
|
|
old_alignment = h->root.u.c.p->alignment_power;
|
|
|
|
|
|
1997-07-31 01:35:46 +00:00
|
|
|
|
if (elf_tdata (abfd)->verdef != NULL
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
&& ! override
|
|
|
|
|
&& vernum > 1
|
1997-07-31 01:35:46 +00:00
|
|
|
|
&& definition)
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
h->verinfo.verdef = &elf_tdata (abfd)->verdef[vernum - 1];
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (! (_bfd_generic_link_add_one_symbol
|
|
|
|
|
(info, abfd, name, flags, sec, value, (const char *) NULL,
|
|
|
|
|
false, collect, (struct bfd_link_hash_entry **) sym_hash)))
|
|
|
|
|
goto error_return;
|
|
|
|
|
|
1995-09-01 18:08:28 +00:00
|
|
|
|
h = *sym_hash;
|
|
|
|
|
while (h->root.type == bfd_link_hash_indirect
|
|
|
|
|
|| h->root.type == bfd_link_hash_warning)
|
|
|
|
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
|
|
|
|
*sym_hash = h;
|
|
|
|
|
|
1995-08-14 15:57:17 +00:00
|
|
|
|
new_weakdef = false;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
if (dynamic
|
|
|
|
|
&& definition
|
|
|
|
|
&& (flags & BSF_WEAK) != 0
|
|
|
|
|
&& ELF_ST_TYPE (sym.st_info) != STT_FUNC
|
|
|
|
|
&& info->hash->creator->flavour == bfd_target_elf_flavour
|
1995-09-01 18:08:28 +00:00
|
|
|
|
&& h->weakdef == NULL)
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
{
|
|
|
|
|
/* Keep a list of all weak defined non function symbols from
|
|
|
|
|
a dynamic object, using the weakdef field. Later in this
|
|
|
|
|
function we will set the weakdef field to the correct
|
|
|
|
|
value. We only put non-function symbols from dynamic
|
|
|
|
|
objects on this list, because that happens to be the only
|
|
|
|
|
time we need to know the normal symbol corresponding to a
|
|
|
|
|
weak symbol, and the information is time consuming to
|
|
|
|
|
figure out. If the weakdef field is not already NULL,
|
|
|
|
|
then this symbol was already defined by some previous
|
|
|
|
|
dynamic object, and we will be using that previous
|
|
|
|
|
definition anyhow. */
|
|
|
|
|
|
1995-09-01 18:08:28 +00:00
|
|
|
|
h->weakdef = weaks;
|
|
|
|
|
weaks = h;
|
1995-08-14 15:57:17 +00:00
|
|
|
|
new_weakdef = true;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
}
|
|
|
|
|
|
1997-05-16 16:13:33 +00:00
|
|
|
|
/* Set the alignment of a common symbol. */
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
if (sym.st_shndx == SHN_COMMON
|
1995-09-01 18:08:28 +00:00
|
|
|
|
&& h->root.type == bfd_link_hash_common)
|
1997-05-16 16:13:33 +00:00
|
|
|
|
{
|
|
|
|
|
unsigned int align;
|
|
|
|
|
|
|
|
|
|
align = bfd_log2 (sym.st_value);
|
|
|
|
|
if (align > old_alignment)
|
|
|
|
|
h->root.u.c.p->alignment_power = align;
|
|
|
|
|
}
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
|
|
|
|
if (info->hash->creator->flavour == bfd_target_elf_flavour)
|
|
|
|
|
{
|
|
|
|
|
int old_flags;
|
|
|
|
|
boolean dynsym;
|
|
|
|
|
int new_flag;
|
|
|
|
|
|
|
|
|
|
/* Remember the symbol size and type. */
|
1995-10-02 18:11:12 +00:00
|
|
|
|
if (sym.st_size != 0
|
|
|
|
|
&& (definition || h->size == 0))
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
{
|
1995-10-11 04:50:20 +00:00
|
|
|
|
if (h->size != 0 && h->size != sym.st_size && ! size_change_ok)
|
1995-10-02 18:11:12 +00:00
|
|
|
|
(*_bfd_error_handler)
|
1998-04-22 05:13:54 +00:00
|
|
|
|
(_("Warning: size of symbol `%s' changed from %lu to %lu in %s"),
|
1997-04-02 22:47:29 +00:00
|
|
|
|
name, (unsigned long) h->size, (unsigned long) sym.st_size,
|
|
|
|
|
bfd_get_filename (abfd));
|
|
|
|
|
|
|
|
|
|
h->size = sym.st_size;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
}
|
1997-05-15 20:40:54 +00:00
|
|
|
|
|
|
|
|
|
/* If this is a common symbol, then we always want H->SIZE
|
|
|
|
|
to be the size of the common symbol. The code just above
|
|
|
|
|
won't fix the size if a common symbol becomes larger. We
|
|
|
|
|
don't warn about a size change here, because that is
|
|
|
|
|
covered by --warn-common. */
|
|
|
|
|
if (h->root.type == bfd_link_hash_common)
|
|
|
|
|
h->size = h->root.u.c.size;
|
|
|
|
|
|
1995-10-02 18:11:12 +00:00
|
|
|
|
if (ELF_ST_TYPE (sym.st_info) != STT_NOTYPE
|
|
|
|
|
&& (definition || h->type == STT_NOTYPE))
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
{
|
1995-10-02 18:11:12 +00:00
|
|
|
|
if (h->type != STT_NOTYPE
|
1995-10-10 05:30:17 +00:00
|
|
|
|
&& h->type != ELF_ST_TYPE (sym.st_info)
|
1995-10-11 04:50:20 +00:00
|
|
|
|
&& ! type_change_ok)
|
1995-10-02 18:11:12 +00:00
|
|
|
|
(*_bfd_error_handler)
|
1998-04-22 05:13:54 +00:00
|
|
|
|
(_("Warning: type of symbol `%s' changed from %d to %d in %s"),
|
1995-10-02 18:11:12 +00:00
|
|
|
|
name, h->type, ELF_ST_TYPE (sym.st_info),
|
|
|
|
|
bfd_get_filename (abfd));
|
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
h->type = ELF_ST_TYPE (sym.st_info);
|
|
|
|
|
}
|
|
|
|
|
|
1996-11-26 16:43:03 +00:00
|
|
|
|
if (sym.st_other != 0
|
|
|
|
|
&& (definition || h->other == 0))
|
|
|
|
|
h->other = sym.st_other;
|
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
/* Set a flag in the hash table entry indicating the type of
|
|
|
|
|
reference or definition we just found. Keep a count of
|
|
|
|
|
the number of dynamic symbols we find. A dynamic symbol
|
|
|
|
|
is one which is referenced or defined by both a regular
|
1996-12-13 02:29:37 +00:00
|
|
|
|
object and a shared object. */
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
old_flags = h->elf_link_hash_flags;
|
|
|
|
|
dynsym = false;
|
|
|
|
|
if (! dynamic)
|
|
|
|
|
{
|
|
|
|
|
if (! definition)
|
|
|
|
|
new_flag = ELF_LINK_HASH_REF_REGULAR;
|
|
|
|
|
else
|
|
|
|
|
new_flag = ELF_LINK_HASH_DEF_REGULAR;
|
|
|
|
|
if (info->shared
|
|
|
|
|
|| (old_flags & (ELF_LINK_HASH_DEF_DYNAMIC
|
|
|
|
|
| ELF_LINK_HASH_REF_DYNAMIC)) != 0)
|
|
|
|
|
dynsym = true;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
if (! definition)
|
|
|
|
|
new_flag = ELF_LINK_HASH_REF_DYNAMIC;
|
|
|
|
|
else
|
|
|
|
|
new_flag = ELF_LINK_HASH_DEF_DYNAMIC;
|
1996-10-01 16:33:01 +00:00
|
|
|
|
if ((old_flags & (ELF_LINK_HASH_DEF_REGULAR
|
1996-10-08 18:50:59 +00:00
|
|
|
|
| ELF_LINK_HASH_REF_REGULAR)) != 0
|
|
|
|
|
|| (h->weakdef != NULL
|
1996-12-13 02:29:37 +00:00
|
|
|
|
&& ! new_weakdef
|
|
|
|
|
&& h->weakdef->dynindx != -1))
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
dynsym = true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
h->elf_link_hash_flags |= new_flag;
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
|
|
|
|
|
/* If this symbol has a version, and it is the default
|
|
|
|
|
version, we create an indirect symbol from the default
|
|
|
|
|
name to the fully decorated name. This will cause
|
|
|
|
|
external references which do not specify a version to be
|
|
|
|
|
bound to this version of the symbol. */
|
|
|
|
|
if (definition)
|
|
|
|
|
{
|
|
|
|
|
char *p;
|
|
|
|
|
|
|
|
|
|
p = strchr (name, ELF_VER_CHR);
|
|
|
|
|
if (p != NULL && p[1] == ELF_VER_CHR)
|
|
|
|
|
{
|
|
|
|
|
char *shortname;
|
1997-06-23 22:06:29 +00:00
|
|
|
|
struct elf_link_hash_entry *hi;
|
|
|
|
|
boolean override;
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
|
|
|
|
|
shortname = bfd_hash_allocate (&info->hash->table,
|
|
|
|
|
p - name + 1);
|
|
|
|
|
if (shortname == NULL)
|
|
|
|
|
goto error_return;
|
|
|
|
|
strncpy (shortname, name, p - name);
|
|
|
|
|
shortname[p - name] = '\0';
|
|
|
|
|
|
1997-06-23 22:06:29 +00:00
|
|
|
|
/* We are going to create a new symbol. Merge it
|
|
|
|
|
with any existing symbol with this name. For the
|
|
|
|
|
purposes of the merge, act as though we were
|
|
|
|
|
defining the symbol we just defined, although we
|
|
|
|
|
actually going to define an indirect symbol. */
|
1998-06-02 21:16:06 +00:00
|
|
|
|
type_change_ok = false;
|
|
|
|
|
size_change_ok = false;
|
1997-06-23 22:06:29 +00:00
|
|
|
|
if (! elf_merge_symbol (abfd, info, shortname, &sym, &sec,
|
|
|
|
|
&value, &hi, &override,
|
|
|
|
|
&type_change_ok, &size_change_ok))
|
|
|
|
|
goto error_return;
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
|
1997-06-23 22:06:29 +00:00
|
|
|
|
if (! override)
|
1997-03-10 04:43:42 +00:00
|
|
|
|
{
|
1997-03-11 06:46:46 +00:00
|
|
|
|
if (! (_bfd_generic_link_add_one_symbol
|
|
|
|
|
(info, abfd, shortname, BSF_INDIRECT,
|
|
|
|
|
bfd_ind_section_ptr, (bfd_vma) 0, name, false,
|
|
|
|
|
collect, (struct bfd_link_hash_entry **) &hi)))
|
|
|
|
|
goto error_return;
|
1997-06-24 02:28:03 +00:00
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* In this case the symbol named SHORTNAME is
|
|
|
|
|
overriding the indirect symbol we want to
|
|
|
|
|
add. We were planning on making SHORTNAME an
|
|
|
|
|
indirect symbol referring to NAME. SHORTNAME
|
|
|
|
|
is the name without a version. NAME is the
|
|
|
|
|
fully versioned name, and it is the default
|
|
|
|
|
version.
|
|
|
|
|
|
|
|
|
|
Overriding means that we already saw a
|
|
|
|
|
definition for the symbol SHORTNAME in a
|
|
|
|
|
regular object, and it is overriding the
|
|
|
|
|
symbol defined in the dynamic object.
|
|
|
|
|
|
|
|
|
|
When this happens, we actually want to change
|
|
|
|
|
NAME, the symbol we just added, to refer to
|
|
|
|
|
SHORTNAME. This will cause references to
|
|
|
|
|
NAME in the shared object to become
|
|
|
|
|
references to SHORTNAME in the regular
|
|
|
|
|
object. This is what we expect when we
|
|
|
|
|
override a function in a shared object: that
|
|
|
|
|
the references in the shared object will be
|
|
|
|
|
mapped to the definition in the regular
|
|
|
|
|
object. */
|
|
|
|
|
|
1997-06-26 16:06:03 +00:00
|
|
|
|
while (hi->root.type == bfd_link_hash_indirect
|
|
|
|
|
|| hi->root.type == bfd_link_hash_warning)
|
|
|
|
|
hi = (struct elf_link_hash_entry *) hi->root.u.i.link;
|
|
|
|
|
|
1997-06-24 02:28:03 +00:00
|
|
|
|
h->root.type = bfd_link_hash_indirect;
|
|
|
|
|
h->root.u.i.link = (struct bfd_link_hash_entry *) hi;
|
|
|
|
|
if (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)
|
|
|
|
|
{
|
|
|
|
|
h->elf_link_hash_flags &=~ ELF_LINK_HASH_DEF_DYNAMIC;
|
|
|
|
|
hi->elf_link_hash_flags |= ELF_LINK_HASH_REF_DYNAMIC;
|
|
|
|
|
if (! _bfd_elf_link_record_dynamic_symbol (info, hi))
|
|
|
|
|
goto error_return;
|
|
|
|
|
}
|
1997-03-11 06:46:46 +00:00
|
|
|
|
|
1997-06-24 02:28:03 +00:00
|
|
|
|
/* Now set HI to H, so that the following code
|
|
|
|
|
will set the other fields correctly. */
|
|
|
|
|
hi = h;
|
|
|
|
|
}
|
1997-03-11 06:46:46 +00:00
|
|
|
|
|
1997-06-24 02:28:03 +00:00
|
|
|
|
/* If there is a duplicate definition somewhere,
|
|
|
|
|
then HI may not point to an indirect symbol. We
|
|
|
|
|
will have reported an error to the user in that
|
|
|
|
|
case. */
|
|
|
|
|
|
|
|
|
|
if (hi->root.type == bfd_link_hash_indirect)
|
|
|
|
|
{
|
|
|
|
|
struct elf_link_hash_entry *ht;
|
|
|
|
|
|
|
|
|
|
/* If the symbol became indirect, then we assume
|
|
|
|
|
that we have not seen a definition before. */
|
|
|
|
|
BFD_ASSERT ((hi->elf_link_hash_flags
|
|
|
|
|
& (ELF_LINK_HASH_DEF_DYNAMIC
|
|
|
|
|
| ELF_LINK_HASH_DEF_REGULAR))
|
|
|
|
|
== 0);
|
|
|
|
|
|
|
|
|
|
ht = (struct elf_link_hash_entry *) hi->root.u.i.link;
|
|
|
|
|
|
|
|
|
|
/* Copy down any references that we may have
|
|
|
|
|
already seen to the symbol which just became
|
|
|
|
|
indirect. */
|
|
|
|
|
ht->elf_link_hash_flags |=
|
|
|
|
|
(hi->elf_link_hash_flags
|
|
|
|
|
& (ELF_LINK_HASH_REF_DYNAMIC
|
|
|
|
|
| ELF_LINK_HASH_REF_REGULAR));
|
|
|
|
|
|
|
|
|
|
/* Copy over the global table offset entry.
|
|
|
|
|
This may have been already set up by a
|
|
|
|
|
check_relocs routine. */
|
|
|
|
|
if (ht->got_offset == (bfd_vma) -1)
|
1997-03-11 06:46:46 +00:00
|
|
|
|
{
|
1997-06-24 02:28:03 +00:00
|
|
|
|
ht->got_offset = hi->got_offset;
|
|
|
|
|
hi->got_offset = (bfd_vma) -1;
|
|
|
|
|
}
|
|
|
|
|
BFD_ASSERT (hi->got_offset == (bfd_vma) -1);
|
1997-03-13 02:41:44 +00:00
|
|
|
|
|
1997-06-24 02:28:03 +00:00
|
|
|
|
if (ht->dynindx == -1)
|
|
|
|
|
{
|
|
|
|
|
ht->dynindx = hi->dynindx;
|
|
|
|
|
ht->dynstr_index = hi->dynstr_index;
|
|
|
|
|
hi->dynindx = -1;
|
|
|
|
|
hi->dynstr_index = 0;
|
|
|
|
|
}
|
|
|
|
|
BFD_ASSERT (hi->dynindx == -1);
|
1997-03-13 02:41:44 +00:00
|
|
|
|
|
1997-06-24 02:28:03 +00:00
|
|
|
|
/* FIXME: There may be other information to copy
|
|
|
|
|
over for particular targets. */
|
|
|
|
|
|
|
|
|
|
/* See if the new flags lead us to realize that
|
|
|
|
|
the symbol must be dynamic. */
|
|
|
|
|
if (! dynsym)
|
|
|
|
|
{
|
|
|
|
|
if (! dynamic)
|
1997-03-13 02:41:44 +00:00
|
|
|
|
{
|
1997-06-24 02:28:03 +00:00
|
|
|
|
if (info->shared
|
|
|
|
|
|| ((hi->elf_link_hash_flags
|
|
|
|
|
& ELF_LINK_HASH_REF_DYNAMIC)
|
|
|
|
|
!= 0))
|
|
|
|
|
dynsym = true;
|
1997-03-13 02:41:44 +00:00
|
|
|
|
}
|
1997-06-24 02:28:03 +00:00
|
|
|
|
else
|
1997-03-13 02:41:44 +00:00
|
|
|
|
{
|
1997-06-24 02:28:03 +00:00
|
|
|
|
if ((hi->elf_link_hash_flags
|
|
|
|
|
& ELF_LINK_HASH_REF_REGULAR) != 0)
|
|
|
|
|
dynsym = true;
|
1997-03-13 02:41:44 +00:00
|
|
|
|
}
|
1997-03-11 06:46:46 +00:00
|
|
|
|
}
|
1997-03-10 04:43:42 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* We also need to define an indirection from the
|
|
|
|
|
nondefault version of the symbol. */
|
|
|
|
|
|
|
|
|
|
shortname = bfd_hash_allocate (&info->hash->table,
|
|
|
|
|
strlen (name));
|
|
|
|
|
if (shortname == NULL)
|
|
|
|
|
goto error_return;
|
|
|
|
|
strncpy (shortname, name, p - name);
|
|
|
|
|
strcpy (shortname + (p - name), p + 1);
|
|
|
|
|
|
1997-06-23 22:06:29 +00:00
|
|
|
|
/* Once again, merge with any existing symbol. */
|
1998-06-02 21:16:06 +00:00
|
|
|
|
type_change_ok = false;
|
|
|
|
|
size_change_ok = false;
|
1997-06-23 22:06:29 +00:00
|
|
|
|
if (! elf_merge_symbol (abfd, info, shortname, &sym, &sec,
|
|
|
|
|
&value, &hi, &override,
|
|
|
|
|
&type_change_ok, &size_change_ok))
|
|
|
|
|
goto error_return;
|
1997-03-10 04:43:42 +00:00
|
|
|
|
|
1997-06-24 02:28:03 +00:00
|
|
|
|
if (override)
|
|
|
|
|
{
|
|
|
|
|
/* Here SHORTNAME is a versioned name, so we
|
|
|
|
|
don't expect to see the type of override we
|
|
|
|
|
do in the case above. */
|
|
|
|
|
(*_bfd_error_handler)
|
1998-04-22 05:13:54 +00:00
|
|
|
|
(_("%s: warning: unexpected redefinition of `%s'"),
|
1997-06-24 02:28:03 +00:00
|
|
|
|
bfd_get_filename (abfd), shortname);
|
|
|
|
|
}
|
|
|
|
|
else
|
1997-03-10 04:43:42 +00:00
|
|
|
|
{
|
1997-03-11 06:46:46 +00:00
|
|
|
|
if (! (_bfd_generic_link_add_one_symbol
|
|
|
|
|
(info, abfd, shortname, BSF_INDIRECT,
|
|
|
|
|
bfd_ind_section_ptr, (bfd_vma) 0, name, false,
|
|
|
|
|
collect, (struct bfd_link_hash_entry **) &hi)))
|
|
|
|
|
goto error_return;
|
|
|
|
|
|
|
|
|
|
/* If there is a duplicate definition somewhere,
|
|
|
|
|
then HI may not point to an indirect symbol.
|
|
|
|
|
We will have reported an error to the user in
|
|
|
|
|
that case. */
|
|
|
|
|
|
|
|
|
|
if (hi->root.type == bfd_link_hash_indirect)
|
|
|
|
|
{
|
1997-03-13 02:41:44 +00:00
|
|
|
|
/* If the symbol became indirect, then we
|
|
|
|
|
assume that we have not seen a definition
|
|
|
|
|
before. */
|
|
|
|
|
BFD_ASSERT ((hi->elf_link_hash_flags
|
|
|
|
|
& (ELF_LINK_HASH_DEF_DYNAMIC
|
|
|
|
|
| ELF_LINK_HASH_DEF_REGULAR))
|
|
|
|
|
== 0);
|
|
|
|
|
|
|
|
|
|
/* Copy down any references that we may have
|
|
|
|
|
already seen to the symbol which just
|
|
|
|
|
became indirect. */
|
|
|
|
|
h->elf_link_hash_flags |=
|
|
|
|
|
(hi->elf_link_hash_flags
|
|
|
|
|
& (ELF_LINK_HASH_REF_DYNAMIC
|
|
|
|
|
| ELF_LINK_HASH_REF_REGULAR));
|
|
|
|
|
|
|
|
|
|
/* Copy over the global table offset entry.
|
|
|
|
|
This may have been already set up by a
|
|
|
|
|
check_relocs routine. */
|
|
|
|
|
if (h->got_offset == (bfd_vma) -1)
|
|
|
|
|
{
|
|
|
|
|
h->got_offset = hi->got_offset;
|
|
|
|
|
hi->got_offset = (bfd_vma) -1;
|
|
|
|
|
}
|
|
|
|
|
BFD_ASSERT (hi->got_offset == (bfd_vma) -1);
|
|
|
|
|
|
|
|
|
|
if (h->dynindx == -1)
|
|
|
|
|
{
|
|
|
|
|
h->dynindx = hi->dynindx;
|
|
|
|
|
h->dynstr_index = hi->dynstr_index;
|
|
|
|
|
hi->dynindx = -1;
|
|
|
|
|
hi->dynstr_index = 0;
|
|
|
|
|
}
|
|
|
|
|
BFD_ASSERT (hi->dynindx == -1);
|
|
|
|
|
|
|
|
|
|
/* FIXME: There may be other information to
|
|
|
|
|
copy over for particular targets. */
|
|
|
|
|
|
|
|
|
|
/* See if the new flags lead us to realize
|
|
|
|
|
that the symbol must be dynamic. */
|
|
|
|
|
if (! dynsym)
|
|
|
|
|
{
|
|
|
|
|
if (! dynamic)
|
|
|
|
|
{
|
|
|
|
|
if (info->shared
|
|
|
|
|
|| ((hi->elf_link_hash_flags
|
|
|
|
|
& ELF_LINK_HASH_REF_DYNAMIC)
|
|
|
|
|
!= 0))
|
|
|
|
|
dynsym = true;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
if ((hi->elf_link_hash_flags
|
|
|
|
|
& ELF_LINK_HASH_REF_REGULAR) != 0)
|
|
|
|
|
dynsym = true;
|
|
|
|
|
}
|
|
|
|
|
}
|
1997-03-11 06:46:46 +00:00
|
|
|
|
}
|
1997-03-10 04:43:42 +00:00
|
|
|
|
}
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
if (dynsym && h->dynindx == -1)
|
|
|
|
|
{
|
|
|
|
|
if (! _bfd_elf_link_record_dynamic_symbol (info, h))
|
|
|
|
|
goto error_return;
|
1995-08-14 15:57:17 +00:00
|
|
|
|
if (h->weakdef != NULL
|
|
|
|
|
&& ! new_weakdef
|
|
|
|
|
&& h->weakdef->dynindx == -1)
|
|
|
|
|
{
|
|
|
|
|
if (! _bfd_elf_link_record_dynamic_symbol (info,
|
|
|
|
|
h->weakdef))
|
|
|
|
|
goto error_return;
|
|
|
|
|
}
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Now set the weakdefs field correctly for all the weak defined
|
|
|
|
|
symbols we found. The only way to do this is to search all the
|
|
|
|
|
symbols. Since we only need the information for non functions in
|
|
|
|
|
dynamic objects, that's the only time we actually put anything on
|
|
|
|
|
the list WEAKS. We need this information so that if a regular
|
|
|
|
|
object refers to a symbol defined weakly in a dynamic object, the
|
|
|
|
|
real symbol in the dynamic object is also put in the dynamic
|
|
|
|
|
symbols; we also must arrange for both symbols to point to the
|
|
|
|
|
same memory location. We could handle the general case of symbol
|
|
|
|
|
aliasing, but a general symbol alias can only be generated in
|
|
|
|
|
assembler code, handling it correctly would be very time
|
|
|
|
|
consuming, and other ELF linkers don't handle general aliasing
|
|
|
|
|
either. */
|
|
|
|
|
while (weaks != NULL)
|
|
|
|
|
{
|
|
|
|
|
struct elf_link_hash_entry *hlook;
|
|
|
|
|
asection *slook;
|
|
|
|
|
bfd_vma vlook;
|
|
|
|
|
struct elf_link_hash_entry **hpp;
|
|
|
|
|
struct elf_link_hash_entry **hppend;
|
|
|
|
|
|
|
|
|
|
hlook = weaks;
|
|
|
|
|
weaks = hlook->weakdef;
|
|
|
|
|
hlook->weakdef = NULL;
|
|
|
|
|
|
|
|
|
|
BFD_ASSERT (hlook->root.type == bfd_link_hash_defined
|
|
|
|
|
|| hlook->root.type == bfd_link_hash_defweak
|
|
|
|
|
|| hlook->root.type == bfd_link_hash_common
|
|
|
|
|
|| hlook->root.type == bfd_link_hash_indirect);
|
|
|
|
|
slook = hlook->root.u.def.section;
|
|
|
|
|
vlook = hlook->root.u.def.value;
|
|
|
|
|
|
|
|
|
|
hpp = elf_sym_hashes (abfd);
|
|
|
|
|
hppend = hpp + extsymcount;
|
|
|
|
|
for (; hpp < hppend; hpp++)
|
|
|
|
|
{
|
|
|
|
|
struct elf_link_hash_entry *h;
|
|
|
|
|
|
|
|
|
|
h = *hpp;
|
|
|
|
|
if (h != NULL && h != hlook
|
1996-01-29 18:09:20 +00:00
|
|
|
|
&& h->root.type == bfd_link_hash_defined
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
&& h->root.u.def.section == slook
|
|
|
|
|
&& h->root.u.def.value == vlook)
|
|
|
|
|
{
|
|
|
|
|
hlook->weakdef = h;
|
|
|
|
|
|
|
|
|
|
/* If the weak definition is in the list of dynamic
|
|
|
|
|
symbols, make sure the real definition is put there
|
|
|
|
|
as well. */
|
|
|
|
|
if (hlook->dynindx != -1
|
|
|
|
|
&& h->dynindx == -1)
|
|
|
|
|
{
|
|
|
|
|
if (! _bfd_elf_link_record_dynamic_symbol (info, h))
|
|
|
|
|
goto error_return;
|
|
|
|
|
}
|
|
|
|
|
|
1996-12-13 02:29:37 +00:00
|
|
|
|
/* If the real definition is in the list of dynamic
|
|
|
|
|
symbols, make sure the weak definition is put there
|
|
|
|
|
as well. If we don't do this, then the dynamic
|
|
|
|
|
loader might not merge the entries for the real
|
|
|
|
|
definition and the weak definition. */
|
|
|
|
|
if (h->dynindx != -1
|
|
|
|
|
&& hlook->dynindx == -1)
|
|
|
|
|
{
|
|
|
|
|
if (! _bfd_elf_link_record_dynamic_symbol (info, hlook))
|
|
|
|
|
goto error_return;
|
|
|
|
|
}
|
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (buf != NULL)
|
|
|
|
|
{
|
|
|
|
|
free (buf);
|
|
|
|
|
buf = NULL;
|
|
|
|
|
}
|
|
|
|
|
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
if (extversym != NULL)
|
|
|
|
|
{
|
|
|
|
|
free (extversym);
|
|
|
|
|
extversym = NULL;
|
|
|
|
|
}
|
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
/* If this object is the same format as the output object, and it is
|
|
|
|
|
not a shared library, then let the backend look through the
|
|
|
|
|
relocs.
|
|
|
|
|
|
|
|
|
|
This is required to build global offset table entries and to
|
|
|
|
|
arrange for dynamic relocs. It is not required for the
|
|
|
|
|
particular common case of linking non PIC code, even when linking
|
|
|
|
|
against shared libraries, but unfortunately there is no way of
|
|
|
|
|
knowing whether an object file has been compiled PIC or not.
|
|
|
|
|
Looking through the relocs is not particularly time consuming.
|
|
|
|
|
The problem is that we must either (1) keep the relocs in memory,
|
|
|
|
|
which causes the linker to require additional runtime memory or
|
|
|
|
|
(2) read the relocs twice from the input file, which wastes time.
|
|
|
|
|
This would be a good case for using mmap.
|
|
|
|
|
|
|
|
|
|
I have no idea how to handle linking PIC code into a file of a
|
|
|
|
|
different format. It probably can't be done. */
|
|
|
|
|
check_relocs = get_elf_backend_data (abfd)->check_relocs;
|
|
|
|
|
if (! dynamic
|
|
|
|
|
&& abfd->xvec == info->hash->creator
|
|
|
|
|
&& check_relocs != NULL)
|
|
|
|
|
{
|
|
|
|
|
asection *o;
|
|
|
|
|
|
|
|
|
|
for (o = abfd->sections; o != NULL; o = o->next)
|
|
|
|
|
{
|
|
|
|
|
Elf_Internal_Rela *internal_relocs;
|
|
|
|
|
boolean ok;
|
|
|
|
|
|
|
|
|
|
if ((o->flags & SEC_RELOC) == 0
|
1997-04-15 15:54:24 +00:00
|
|
|
|
|| o->reloc_count == 0
|
|
|
|
|
|| ((info->strip == strip_all || info->strip == strip_debugger)
|
1997-06-09 16:36:08 +00:00
|
|
|
|
&& (o->flags & SEC_DEBUGGING) != 0)
|
|
|
|
|
|| bfd_is_abs_section (o->output_section))
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
continue;
|
|
|
|
|
|
1996-08-30 22:09:51 +00:00
|
|
|
|
internal_relocs = (NAME(_bfd_elf,link_read_relocs)
|
|
|
|
|
(abfd, o, (PTR) NULL,
|
|
|
|
|
(Elf_Internal_Rela *) NULL,
|
|
|
|
|
info->keep_memory));
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
if (internal_relocs == NULL)
|
|
|
|
|
goto error_return;
|
|
|
|
|
|
|
|
|
|
ok = (*check_relocs) (abfd, info, o, internal_relocs);
|
|
|
|
|
|
|
|
|
|
if (! info->keep_memory)
|
|
|
|
|
free (internal_relocs);
|
|
|
|
|
|
|
|
|
|
if (! ok)
|
|
|
|
|
goto error_return;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
1996-04-22 22:35:53 +00:00
|
|
|
|
/* If this is a non-traditional, non-relocateable link, try to
|
|
|
|
|
optimize the handling of the .stab/.stabstr sections. */
|
|
|
|
|
if (! dynamic
|
|
|
|
|
&& ! info->relocateable
|
|
|
|
|
&& ! info->traditional_format
|
|
|
|
|
&& info->hash->creator->flavour == bfd_target_elf_flavour
|
|
|
|
|
&& (info->strip != strip_all && info->strip != strip_debugger))
|
|
|
|
|
{
|
|
|
|
|
asection *stab, *stabstr;
|
|
|
|
|
|
|
|
|
|
stab = bfd_get_section_by_name (abfd, ".stab");
|
|
|
|
|
if (stab != NULL)
|
|
|
|
|
{
|
|
|
|
|
stabstr = bfd_get_section_by_name (abfd, ".stabstr");
|
|
|
|
|
|
|
|
|
|
if (stabstr != NULL)
|
|
|
|
|
{
|
|
|
|
|
struct bfd_elf_section_data *secdata;
|
|
|
|
|
|
|
|
|
|
secdata = elf_section_data (stab);
|
|
|
|
|
if (! _bfd_link_section_stabs (abfd,
|
|
|
|
|
&elf_hash_table (info)->stab_info,
|
|
|
|
|
stab, stabstr,
|
|
|
|
|
&secdata->stab_info))
|
|
|
|
|
goto error_return;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
return true;
|
|
|
|
|
|
|
|
|
|
error_return:
|
|
|
|
|
if (buf != NULL)
|
|
|
|
|
free (buf);
|
|
|
|
|
if (dynbuf != NULL)
|
|
|
|
|
free (dynbuf);
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
if (dynver != NULL)
|
|
|
|
|
free (dynver);
|
|
|
|
|
if (extversym != NULL)
|
|
|
|
|
free (extversym);
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Create some sections which will be filled in with dynamic linking
|
|
|
|
|
information. ABFD is an input file which requires dynamic sections
|
|
|
|
|
to be created. The dynamic sections take up virtual memory space
|
|
|
|
|
when the final executable is run, so we need to create them before
|
|
|
|
|
addresses are assigned to the output sections. We work out the
|
|
|
|
|
actual contents and size of these sections later. */
|
|
|
|
|
|
|
|
|
|
boolean
|
|
|
|
|
elf_link_create_dynamic_sections (abfd, info)
|
|
|
|
|
bfd *abfd;
|
|
|
|
|
struct bfd_link_info *info;
|
|
|
|
|
{
|
|
|
|
|
flagword flags;
|
|
|
|
|
register asection *s;
|
|
|
|
|
struct elf_link_hash_entry *h;
|
|
|
|
|
struct elf_backend_data *bed;
|
|
|
|
|
|
|
|
|
|
if (elf_hash_table (info)->dynamic_sections_created)
|
|
|
|
|
return true;
|
|
|
|
|
|
|
|
|
|
/* Make sure that all dynamic sections use the same input BFD. */
|
|
|
|
|
if (elf_hash_table (info)->dynobj == NULL)
|
|
|
|
|
elf_hash_table (info)->dynobj = abfd;
|
|
|
|
|
else
|
|
|
|
|
abfd = elf_hash_table (info)->dynobj;
|
|
|
|
|
|
|
|
|
|
/* Note that we set the SEC_IN_MEMORY flag for all of these
|
|
|
|
|
sections. */
|
Fri Jan 3 16:58:31 1997 Richard Henderson <rth@tamu.edu>
elf64-alpha multiple .got rewrite:
* elf-bfd.h (struct elf_backend_data): Add always_size_sections entry.
(bfd_elf*_mkobject): Don't define here ...
* elfxx-target.h: ... but rather here. Default always_size_sections
hook to NULL.
* elf.c (elf_mkobject): Rename to bfd_elf_mkobject, since that was
what the #defines in elf-bfd.h transmuted it to anyway.
* section.c: Add SEC_LINKER_CREATED flag.
* bfd-in2.h: Rebuild.
* elf32-i386.c (elf_i386_check_relocs): Add SEC_LINKER_CREATED to
relocation section flags.
(elf_i386_size_dynamic_sections): Use SEC_LINKER_CREATED instead of
SEC_IN_MEMORY to recognize generated bits.
* elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_size_dynamic_sections):
Likewise.
* elf32-mips.c (mips_elf_final_link, mips_elf_create_dynamic_sections,
mips_elf_create_compact_rel_section, mips_elf_create_got_section,
mips_elf_check_relocs, mips_elf_size_dynamic_sections): Likewise.
* elf32-ppc.c (ppc_elf_create_linker_section,
ppc_elf_size_dynamic_sections): Likewise.
* elf32-sparc.c (elf32_sparc_check_relocs,
elf32_sparc_size_dynamic_sections): Likewise.
* elflink.c (_bfd_elf_create_got_section): Add SEC_LINKER_CREATED to
section flags.
(_bfd_elf_create_dynamic_sections): Likewise.
(_bfd_elf_make_linker_section_rela): Likewise.
* elflink.h (elf_link_create_dynamic_sections): Likewise.
(bfd_elf,size_dynamic_sections): Call the always_size_sections hook.
(elf_bfd_final_link): Use SEC_LINKER_CREATED instead of SEC_IN_MEMORY
to identify generated bits.
(elf_link_input_bfd): Likewise.
* elf64-alpha.c: Rewrite everything touching relocations.
1997-01-03 22:09:40 +00:00
|
|
|
|
flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
|
|
|
|
|
| SEC_IN_MEMORY | SEC_LINKER_CREATED);
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
|
|
|
|
/* A dynamically linked executable has a .interp section, but a
|
|
|
|
|
shared library does not. */
|
|
|
|
|
if (! info->shared)
|
|
|
|
|
{
|
|
|
|
|
s = bfd_make_section (abfd, ".interp");
|
|
|
|
|
if (s == NULL
|
|
|
|
|
|| ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY))
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
/* Create sections to hold version informations. These are removed
|
|
|
|
|
if they are not needed. */
|
|
|
|
|
s = bfd_make_section (abfd, ".gnu.version_d");
|
|
|
|
|
if (s == NULL
|
|
|
|
|
|| ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
|
1997-10-23 07:37:25 +00:00
|
|
|
|
|| ! bfd_set_section_alignment (abfd, s, LOG_FILE_ALIGN))
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
s = bfd_make_section (abfd, ".gnu.version");
|
|
|
|
|
if (s == NULL
|
|
|
|
|
|| ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
|
|
|
|
|
|| ! bfd_set_section_alignment (abfd, s, 1))
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
s = bfd_make_section (abfd, ".gnu.version_r");
|
|
|
|
|
if (s == NULL
|
|
|
|
|
|| ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
|
1997-10-23 07:37:25 +00:00
|
|
|
|
|| ! bfd_set_section_alignment (abfd, s, LOG_FILE_ALIGN))
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
return false;
|
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
s = bfd_make_section (abfd, ".dynsym");
|
|
|
|
|
if (s == NULL
|
|
|
|
|
|| ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
|
|
|
|
|
|| ! bfd_set_section_alignment (abfd, s, LOG_FILE_ALIGN))
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
s = bfd_make_section (abfd, ".dynstr");
|
|
|
|
|
if (s == NULL
|
|
|
|
|
|| ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY))
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
/* Create a strtab to hold the dynamic symbol names. */
|
|
|
|
|
if (elf_hash_table (info)->dynstr == NULL)
|
|
|
|
|
{
|
|
|
|
|
elf_hash_table (info)->dynstr = elf_stringtab_init ();
|
|
|
|
|
if (elf_hash_table (info)->dynstr == NULL)
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
s = bfd_make_section (abfd, ".dynamic");
|
|
|
|
|
if (s == NULL
|
|
|
|
|
|| ! bfd_set_section_flags (abfd, s, flags)
|
|
|
|
|
|| ! bfd_set_section_alignment (abfd, s, LOG_FILE_ALIGN))
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
/* The special symbol _DYNAMIC is always set to the start of the
|
|
|
|
|
.dynamic section. This call occurs before we have processed the
|
|
|
|
|
symbols for any dynamic object, so we don't have to worry about
|
|
|
|
|
overriding a dynamic definition. We could set _DYNAMIC in a
|
|
|
|
|
linker script, but we only want to define it if we are, in fact,
|
|
|
|
|
creating a .dynamic section. We don't want to define it if there
|
|
|
|
|
is no .dynamic section, since on some ELF platforms the start up
|
|
|
|
|
code examines it to decide how to initialize the process. */
|
|
|
|
|
h = NULL;
|
|
|
|
|
if (! (_bfd_generic_link_add_one_symbol
|
|
|
|
|
(info, abfd, "_DYNAMIC", BSF_GLOBAL, s, (bfd_vma) 0,
|
|
|
|
|
(const char *) NULL, false, get_elf_backend_data (abfd)->collect,
|
|
|
|
|
(struct bfd_link_hash_entry **) &h)))
|
|
|
|
|
return false;
|
|
|
|
|
h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
|
|
|
|
|
h->type = STT_OBJECT;
|
|
|
|
|
|
|
|
|
|
if (info->shared
|
|
|
|
|
&& ! _bfd_elf_link_record_dynamic_symbol (info, h))
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
s = bfd_make_section (abfd, ".hash");
|
|
|
|
|
if (s == NULL
|
|
|
|
|
|| ! bfd_set_section_flags (abfd, s, flags | SEC_READONLY)
|
|
|
|
|
|| ! bfd_set_section_alignment (abfd, s, LOG_FILE_ALIGN))
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
/* Let the backend create the rest of the sections. This lets the
|
|
|
|
|
backend set the right flags. The backend will normally create
|
|
|
|
|
the .got and .plt sections. */
|
|
|
|
|
bed = get_elf_backend_data (abfd);
|
|
|
|
|
if (! (*bed->elf_backend_create_dynamic_sections) (abfd, info))
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
elf_hash_table (info)->dynamic_sections_created = true;
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Add an entry to the .dynamic table. */
|
|
|
|
|
|
|
|
|
|
boolean
|
|
|
|
|
elf_add_dynamic_entry (info, tag, val)
|
|
|
|
|
struct bfd_link_info *info;
|
|
|
|
|
bfd_vma tag;
|
|
|
|
|
bfd_vma val;
|
|
|
|
|
{
|
|
|
|
|
Elf_Internal_Dyn dyn;
|
|
|
|
|
bfd *dynobj;
|
|
|
|
|
asection *s;
|
|
|
|
|
size_t newsize;
|
|
|
|
|
bfd_byte *newcontents;
|
|
|
|
|
|
|
|
|
|
dynobj = elf_hash_table (info)->dynobj;
|
|
|
|
|
|
|
|
|
|
s = bfd_get_section_by_name (dynobj, ".dynamic");
|
|
|
|
|
BFD_ASSERT (s != NULL);
|
|
|
|
|
|
|
|
|
|
newsize = s->_raw_size + sizeof (Elf_External_Dyn);
|
1995-12-01 19:48:10 +00:00
|
|
|
|
newcontents = (bfd_byte *) bfd_realloc (s->contents, newsize);
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
if (newcontents == NULL)
|
1995-12-01 19:48:10 +00:00
|
|
|
|
return false;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
|
|
|
|
dyn.d_tag = tag;
|
|
|
|
|
dyn.d_un.d_val = val;
|
|
|
|
|
elf_swap_dyn_out (dynobj, &dyn,
|
|
|
|
|
(Elf_External_Dyn *) (newcontents + s->_raw_size));
|
|
|
|
|
|
|
|
|
|
s->_raw_size = newsize;
|
|
|
|
|
s->contents = newcontents;
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
}
|
1996-01-22 16:43:35 +00:00
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
|
|
|
|
/* Read and swap the relocs for a section. They may have been cached.
|
|
|
|
|
If the EXTERNAL_RELOCS and INTERNAL_RELOCS arguments are not NULL,
|
|
|
|
|
they are used as buffers to read into. They are known to be large
|
|
|
|
|
enough. If the INTERNAL_RELOCS relocs argument is NULL, the return
|
|
|
|
|
value is allocated using either malloc or bfd_alloc, according to
|
|
|
|
|
the KEEP_MEMORY argument. */
|
|
|
|
|
|
1996-08-30 22:09:51 +00:00
|
|
|
|
Elf_Internal_Rela *
|
|
|
|
|
NAME(_bfd_elf,link_read_relocs) (abfd, o, external_relocs, internal_relocs,
|
|
|
|
|
keep_memory)
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
bfd *abfd;
|
|
|
|
|
asection *o;
|
|
|
|
|
PTR external_relocs;
|
|
|
|
|
Elf_Internal_Rela *internal_relocs;
|
|
|
|
|
boolean keep_memory;
|
|
|
|
|
{
|
|
|
|
|
Elf_Internal_Shdr *rel_hdr;
|
|
|
|
|
PTR alloc1 = NULL;
|
|
|
|
|
Elf_Internal_Rela *alloc2 = NULL;
|
|
|
|
|
|
|
|
|
|
if (elf_section_data (o)->relocs != NULL)
|
|
|
|
|
return elf_section_data (o)->relocs;
|
|
|
|
|
|
|
|
|
|
if (o->reloc_count == 0)
|
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
|
|
rel_hdr = &elf_section_data (o)->rel_hdr;
|
|
|
|
|
|
|
|
|
|
if (internal_relocs == NULL)
|
|
|
|
|
{
|
|
|
|
|
size_t size;
|
|
|
|
|
|
|
|
|
|
size = o->reloc_count * sizeof (Elf_Internal_Rela);
|
|
|
|
|
if (keep_memory)
|
|
|
|
|
internal_relocs = (Elf_Internal_Rela *) bfd_alloc (abfd, size);
|
|
|
|
|
else
|
1995-12-01 19:48:10 +00:00
|
|
|
|
internal_relocs = alloc2 = (Elf_Internal_Rela *) bfd_malloc (size);
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
if (internal_relocs == NULL)
|
1995-12-01 19:48:10 +00:00
|
|
|
|
goto error_return;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (external_relocs == NULL)
|
|
|
|
|
{
|
1995-12-01 19:48:10 +00:00
|
|
|
|
alloc1 = (PTR) bfd_malloc ((size_t) rel_hdr->sh_size);
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
if (alloc1 == NULL)
|
1995-12-01 19:48:10 +00:00
|
|
|
|
goto error_return;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
external_relocs = alloc1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ((bfd_seek (abfd, rel_hdr->sh_offset, SEEK_SET) != 0)
|
|
|
|
|
|| (bfd_read (external_relocs, 1, rel_hdr->sh_size, abfd)
|
|
|
|
|
!= rel_hdr->sh_size))
|
|
|
|
|
goto error_return;
|
|
|
|
|
|
|
|
|
|
/* Swap in the relocs. For convenience, we always produce an
|
|
|
|
|
Elf_Internal_Rela array; if the relocs are Rel, we set the addend
|
|
|
|
|
to 0. */
|
|
|
|
|
if (rel_hdr->sh_entsize == sizeof (Elf_External_Rel))
|
|
|
|
|
{
|
|
|
|
|
Elf_External_Rel *erel;
|
|
|
|
|
Elf_External_Rel *erelend;
|
|
|
|
|
Elf_Internal_Rela *irela;
|
|
|
|
|
|
|
|
|
|
erel = (Elf_External_Rel *) external_relocs;
|
|
|
|
|
erelend = erel + o->reloc_count;
|
|
|
|
|
irela = internal_relocs;
|
|
|
|
|
for (; erel < erelend; erel++, irela++)
|
|
|
|
|
{
|
|
|
|
|
Elf_Internal_Rel irel;
|
|
|
|
|
|
|
|
|
|
elf_swap_reloc_in (abfd, erel, &irel);
|
|
|
|
|
irela->r_offset = irel.r_offset;
|
|
|
|
|
irela->r_info = irel.r_info;
|
|
|
|
|
irela->r_addend = 0;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
Elf_External_Rela *erela;
|
|
|
|
|
Elf_External_Rela *erelaend;
|
|
|
|
|
Elf_Internal_Rela *irela;
|
|
|
|
|
|
|
|
|
|
BFD_ASSERT (rel_hdr->sh_entsize == sizeof (Elf_External_Rela));
|
|
|
|
|
|
|
|
|
|
erela = (Elf_External_Rela *) external_relocs;
|
|
|
|
|
erelaend = erela + o->reloc_count;
|
|
|
|
|
irela = internal_relocs;
|
|
|
|
|
for (; erela < erelaend; erela++, irela++)
|
|
|
|
|
elf_swap_reloca_in (abfd, erela, irela);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Cache the results for next time, if we can. */
|
|
|
|
|
if (keep_memory)
|
|
|
|
|
elf_section_data (o)->relocs = internal_relocs;
|
Fri Jan 3 16:58:31 1997 Richard Henderson <rth@tamu.edu>
elf64-alpha multiple .got rewrite:
* elf-bfd.h (struct elf_backend_data): Add always_size_sections entry.
(bfd_elf*_mkobject): Don't define here ...
* elfxx-target.h: ... but rather here. Default always_size_sections
hook to NULL.
* elf.c (elf_mkobject): Rename to bfd_elf_mkobject, since that was
what the #defines in elf-bfd.h transmuted it to anyway.
* section.c: Add SEC_LINKER_CREATED flag.
* bfd-in2.h: Rebuild.
* elf32-i386.c (elf_i386_check_relocs): Add SEC_LINKER_CREATED to
relocation section flags.
(elf_i386_size_dynamic_sections): Use SEC_LINKER_CREATED instead of
SEC_IN_MEMORY to recognize generated bits.
* elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_size_dynamic_sections):
Likewise.
* elf32-mips.c (mips_elf_final_link, mips_elf_create_dynamic_sections,
mips_elf_create_compact_rel_section, mips_elf_create_got_section,
mips_elf_check_relocs, mips_elf_size_dynamic_sections): Likewise.
* elf32-ppc.c (ppc_elf_create_linker_section,
ppc_elf_size_dynamic_sections): Likewise.
* elf32-sparc.c (elf32_sparc_check_relocs,
elf32_sparc_size_dynamic_sections): Likewise.
* elflink.c (_bfd_elf_create_got_section): Add SEC_LINKER_CREATED to
section flags.
(_bfd_elf_create_dynamic_sections): Likewise.
(_bfd_elf_make_linker_section_rela): Likewise.
* elflink.h (elf_link_create_dynamic_sections): Likewise.
(bfd_elf,size_dynamic_sections): Call the always_size_sections hook.
(elf_bfd_final_link): Use SEC_LINKER_CREATED instead of SEC_IN_MEMORY
to identify generated bits.
(elf_link_input_bfd): Likewise.
* elf64-alpha.c: Rewrite everything touching relocations.
1997-01-03 22:09:40 +00:00
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
if (alloc1 != NULL)
|
|
|
|
|
free (alloc1);
|
|
|
|
|
|
|
|
|
|
/* Don't free alloc2, since if it was allocated we are passing it
|
|
|
|
|
back (under the name of internal_relocs). */
|
|
|
|
|
|
|
|
|
|
return internal_relocs;
|
|
|
|
|
|
|
|
|
|
error_return:
|
|
|
|
|
if (alloc1 != NULL)
|
|
|
|
|
free (alloc1);
|
|
|
|
|
if (alloc2 != NULL)
|
|
|
|
|
free (alloc2);
|
|
|
|
|
return NULL;
|
|
|
|
|
}
|
1996-01-22 16:43:35 +00:00
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
|
|
|
|
/* Record an assignment to a symbol made by a linker script. We need
|
|
|
|
|
this in case some dynamic object refers to this symbol. */
|
|
|
|
|
|
|
|
|
|
/*ARGSUSED*/
|
|
|
|
|
boolean
|
|
|
|
|
NAME(bfd_elf,record_link_assignment) (output_bfd, info, name, provide)
|
|
|
|
|
bfd *output_bfd;
|
|
|
|
|
struct bfd_link_info *info;
|
|
|
|
|
const char *name;
|
|
|
|
|
boolean provide;
|
|
|
|
|
{
|
|
|
|
|
struct elf_link_hash_entry *h;
|
|
|
|
|
|
|
|
|
|
if (info->hash->creator->flavour != bfd_target_elf_flavour)
|
|
|
|
|
return true;
|
|
|
|
|
|
|
|
|
|
h = elf_link_hash_lookup (elf_hash_table (info), name, true, true, false);
|
|
|
|
|
if (h == NULL)
|
|
|
|
|
return false;
|
|
|
|
|
|
1996-02-01 23:15:23 +00:00
|
|
|
|
if (h->root.type == bfd_link_hash_new)
|
|
|
|
|
h->elf_link_hash_flags &=~ ELF_LINK_NON_ELF;
|
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
/* If this symbol is being provided by the linker script, and it is
|
|
|
|
|
currently defined by a dynamic object, but not by a regular
|
|
|
|
|
object, then mark it as undefined so that the generic linker will
|
|
|
|
|
force the correct value. */
|
|
|
|
|
if (provide
|
|
|
|
|
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
|
|
|
|
|
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
|
|
|
|
|
h->root.type = bfd_link_hash_undefined;
|
|
|
|
|
|
1997-07-31 01:35:46 +00:00
|
|
|
|
/* If this symbol is not being provided by the linker script, and it is
|
|
|
|
|
currently defined by a dynamic object, but not by a regular object,
|
|
|
|
|
then clear out any version information because the symbol will not be
|
|
|
|
|
associated with the dynamic object any more. */
|
|
|
|
|
if (!provide
|
|
|
|
|
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
|
|
|
|
|
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
|
|
|
|
|
h->verinfo.verdef = NULL;
|
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
|
|
|
|
|
h->type = STT_OBJECT;
|
|
|
|
|
|
|
|
|
|
if (((h->elf_link_hash_flags & (ELF_LINK_HASH_DEF_DYNAMIC
|
|
|
|
|
| ELF_LINK_HASH_REF_DYNAMIC)) != 0
|
|
|
|
|
|| info->shared)
|
|
|
|
|
&& h->dynindx == -1)
|
|
|
|
|
{
|
|
|
|
|
if (! _bfd_elf_link_record_dynamic_symbol (info, h))
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
/* If this is a weak defined symbol, and we know a corresponding
|
|
|
|
|
real symbol from the same dynamic object, make sure the real
|
|
|
|
|
symbol is also made into a dynamic symbol. */
|
|
|
|
|
if (h->weakdef != NULL
|
|
|
|
|
&& h->weakdef->dynindx == -1)
|
|
|
|
|
{
|
|
|
|
|
if (! _bfd_elf_link_record_dynamic_symbol (info, h->weakdef))
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
}
|
1996-01-22 16:43:35 +00:00
|
|
|
|
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
/* This structure is used to pass information to
|
|
|
|
|
elf_link_assign_sym_version. */
|
|
|
|
|
|
|
|
|
|
struct elf_assign_sym_version_info
|
|
|
|
|
{
|
|
|
|
|
/* Output BFD. */
|
|
|
|
|
bfd *output_bfd;
|
|
|
|
|
/* General link information. */
|
|
|
|
|
struct bfd_link_info *info;
|
|
|
|
|
/* Version tree. */
|
|
|
|
|
struct bfd_elf_version_tree *verdefs;
|
|
|
|
|
/* Whether we are exporting all dynamic symbols. */
|
|
|
|
|
boolean export_dynamic;
|
|
|
|
|
/* Whether we removed any symbols from the dynamic symbol table. */
|
|
|
|
|
boolean removed_dynamic;
|
|
|
|
|
/* Whether we had a failure. */
|
|
|
|
|
boolean failed;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* This structure is used to pass information to
|
|
|
|
|
elf_link_find_version_dependencies. */
|
|
|
|
|
|
|
|
|
|
struct elf_find_verdep_info
|
|
|
|
|
{
|
|
|
|
|
/* Output BFD. */
|
|
|
|
|
bfd *output_bfd;
|
|
|
|
|
/* General link information. */
|
|
|
|
|
struct bfd_link_info *info;
|
|
|
|
|
/* The number of dependencies. */
|
|
|
|
|
unsigned int vers;
|
|
|
|
|
/* Whether we had a failure. */
|
|
|
|
|
boolean failed;
|
|
|
|
|
};
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
|
|
|
|
/* Array used to determine the number of hash table buckets to use
|
|
|
|
|
based on the number of symbols there are. If there are fewer than
|
|
|
|
|
3 symbols we use 1 bucket, fewer than 17 symbols we use 3 buckets,
|
|
|
|
|
fewer than 37 we use 17 buckets, and so forth. We never use more
|
1996-12-27 16:51:27 +00:00
|
|
|
|
than 32771 buckets. */
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
|
|
|
|
static const size_t elf_buckets[] =
|
|
|
|
|
{
|
1996-12-27 16:51:27 +00:00
|
|
|
|
1, 3, 17, 37, 67, 97, 131, 197, 263, 521, 1031, 2053, 4099, 8209,
|
|
|
|
|
16411, 32771, 0
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* Set up the sizes and contents of the ELF dynamic sections. This is
|
|
|
|
|
called by the ELF linker emulation before_allocation routine. We
|
|
|
|
|
must set the sizes of the sections before the linker sets the
|
|
|
|
|
addresses of the various sections. */
|
|
|
|
|
|
|
|
|
|
boolean
|
|
|
|
|
NAME(bfd_elf,size_dynamic_sections) (output_bfd, soname, rpath,
|
1996-12-31 19:46:37 +00:00
|
|
|
|
export_dynamic, filter_shlib,
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
auxiliary_filters, info, sinterpptr,
|
|
|
|
|
verdefs)
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
bfd *output_bfd;
|
|
|
|
|
const char *soname;
|
|
|
|
|
const char *rpath;
|
|
|
|
|
boolean export_dynamic;
|
1996-12-31 19:46:37 +00:00
|
|
|
|
const char *filter_shlib;
|
1997-01-16 22:48:57 +00:00
|
|
|
|
const char * const *auxiliary_filters;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
struct bfd_link_info *info;
|
|
|
|
|
asection **sinterpptr;
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
struct bfd_elf_version_tree *verdefs;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
{
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
bfd_size_type soname_indx;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
bfd *dynobj;
|
|
|
|
|
struct elf_backend_data *bed;
|
1997-03-13 02:41:44 +00:00
|
|
|
|
bfd_size_type old_dynsymcount;
|
1997-06-16 18:41:19 +00:00
|
|
|
|
struct elf_assign_sym_version_info asvinfo;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
|
|
|
|
*sinterpptr = NULL;
|
|
|
|
|
|
1998-03-27 21:30:53 +00:00
|
|
|
|
soname_indx = (bfd_size_type) -1;
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
if (info->hash->creator->flavour != bfd_target_elf_flavour)
|
|
|
|
|
return true;
|
|
|
|
|
|
Fri Jan 3 16:58:31 1997 Richard Henderson <rth@tamu.edu>
elf64-alpha multiple .got rewrite:
* elf-bfd.h (struct elf_backend_data): Add always_size_sections entry.
(bfd_elf*_mkobject): Don't define here ...
* elfxx-target.h: ... but rather here. Default always_size_sections
hook to NULL.
* elf.c (elf_mkobject): Rename to bfd_elf_mkobject, since that was
what the #defines in elf-bfd.h transmuted it to anyway.
* section.c: Add SEC_LINKER_CREATED flag.
* bfd-in2.h: Rebuild.
* elf32-i386.c (elf_i386_check_relocs): Add SEC_LINKER_CREATED to
relocation section flags.
(elf_i386_size_dynamic_sections): Use SEC_LINKER_CREATED instead of
SEC_IN_MEMORY to recognize generated bits.
* elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_size_dynamic_sections):
Likewise.
* elf32-mips.c (mips_elf_final_link, mips_elf_create_dynamic_sections,
mips_elf_create_compact_rel_section, mips_elf_create_got_section,
mips_elf_check_relocs, mips_elf_size_dynamic_sections): Likewise.
* elf32-ppc.c (ppc_elf_create_linker_section,
ppc_elf_size_dynamic_sections): Likewise.
* elf32-sparc.c (elf32_sparc_check_relocs,
elf32_sparc_size_dynamic_sections): Likewise.
* elflink.c (_bfd_elf_create_got_section): Add SEC_LINKER_CREATED to
section flags.
(_bfd_elf_create_dynamic_sections): Likewise.
(_bfd_elf_make_linker_section_rela): Likewise.
* elflink.h (elf_link_create_dynamic_sections): Likewise.
(bfd_elf,size_dynamic_sections): Call the always_size_sections hook.
(elf_bfd_final_link): Use SEC_LINKER_CREATED instead of SEC_IN_MEMORY
to identify generated bits.
(elf_link_input_bfd): Likewise.
* elf64-alpha.c: Rewrite everything touching relocations.
1997-01-03 22:09:40 +00:00
|
|
|
|
/* The backend may have to create some sections regardless of whether
|
|
|
|
|
we're dynamic or not. */
|
|
|
|
|
bed = get_elf_backend_data (output_bfd);
|
|
|
|
|
if (bed->elf_backend_always_size_sections
|
|
|
|
|
&& ! (*bed->elf_backend_always_size_sections) (output_bfd, info))
|
|
|
|
|
return false;
|
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
dynobj = elf_hash_table (info)->dynobj;
|
|
|
|
|
|
|
|
|
|
/* If there were no dynamic objects in the link, there is nothing to
|
|
|
|
|
do here. */
|
|
|
|
|
if (dynobj == NULL)
|
|
|
|
|
return true;
|
|
|
|
|
|
|
|
|
|
/* If we are supposed to export all symbols into the dynamic symbol
|
|
|
|
|
table (this is not the normal case), then do so. */
|
|
|
|
|
if (export_dynamic)
|
|
|
|
|
{
|
|
|
|
|
struct elf_info_failed eif;
|
|
|
|
|
|
|
|
|
|
eif.failed = false;
|
|
|
|
|
eif.info = info;
|
|
|
|
|
elf_link_hash_traverse (elf_hash_table (info), elf_export_symbol,
|
|
|
|
|
(PTR) &eif);
|
|
|
|
|
if (eif.failed)
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (elf_hash_table (info)->dynamic_sections_created)
|
|
|
|
|
{
|
|
|
|
|
struct elf_info_failed eif;
|
1995-11-17 15:05:44 +00:00
|
|
|
|
struct elf_link_hash_entry *h;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
bfd_size_type strsize;
|
|
|
|
|
|
|
|
|
|
*sinterpptr = bfd_get_section_by_name (dynobj, ".interp");
|
|
|
|
|
BFD_ASSERT (*sinterpptr != NULL || info->shared);
|
|
|
|
|
|
|
|
|
|
if (soname != NULL)
|
|
|
|
|
{
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
soname_indx = _bfd_stringtab_add (elf_hash_table (info)->dynstr,
|
|
|
|
|
soname, true, true);
|
|
|
|
|
if (soname_indx == (bfd_size_type) -1
|
|
|
|
|
|| ! elf_add_dynamic_entry (info, DT_SONAME, soname_indx))
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
return false;
|
Fri Jan 3 16:58:31 1997 Richard Henderson <rth@tamu.edu>
elf64-alpha multiple .got rewrite:
* elf-bfd.h (struct elf_backend_data): Add always_size_sections entry.
(bfd_elf*_mkobject): Don't define here ...
* elfxx-target.h: ... but rather here. Default always_size_sections
hook to NULL.
* elf.c (elf_mkobject): Rename to bfd_elf_mkobject, since that was
what the #defines in elf-bfd.h transmuted it to anyway.
* section.c: Add SEC_LINKER_CREATED flag.
* bfd-in2.h: Rebuild.
* elf32-i386.c (elf_i386_check_relocs): Add SEC_LINKER_CREATED to
relocation section flags.
(elf_i386_size_dynamic_sections): Use SEC_LINKER_CREATED instead of
SEC_IN_MEMORY to recognize generated bits.
* elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_size_dynamic_sections):
Likewise.
* elf32-mips.c (mips_elf_final_link, mips_elf_create_dynamic_sections,
mips_elf_create_compact_rel_section, mips_elf_create_got_section,
mips_elf_check_relocs, mips_elf_size_dynamic_sections): Likewise.
* elf32-ppc.c (ppc_elf_create_linker_section,
ppc_elf_size_dynamic_sections): Likewise.
* elf32-sparc.c (elf32_sparc_check_relocs,
elf32_sparc_size_dynamic_sections): Likewise.
* elflink.c (_bfd_elf_create_got_section): Add SEC_LINKER_CREATED to
section flags.
(_bfd_elf_create_dynamic_sections): Likewise.
(_bfd_elf_make_linker_section_rela): Likewise.
* elflink.h (elf_link_create_dynamic_sections): Likewise.
(bfd_elf,size_dynamic_sections): Call the always_size_sections hook.
(elf_bfd_final_link): Use SEC_LINKER_CREATED instead of SEC_IN_MEMORY
to identify generated bits.
(elf_link_input_bfd): Likewise.
* elf64-alpha.c: Rewrite everything touching relocations.
1997-01-03 22:09:40 +00:00
|
|
|
|
}
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
Based on patches from Eric Youngdale <eric@aib.com>:
* elflink.h (NAME(bfd_elf,size_dynamic_sections)): If -Bsymbolic,
output a DT_SYMBOLIC dynamic entry.
(elf_adjust_dynamic_symbol): If -Bsymbolic, don't require a PLT
entry for a locally defined symbol.
* elf32-i386.c (elf_i386_relocate_section): If -Bsymbolic, do warn
about undefined symbols, and fill in the GOT entry for a symbol
defined in a regular object file.
(elf_i386_finish_dynamic_symbol): If -Bsymbolic, output a RELATIVE
reloc rather than a GLOB_DAT reloc for a symbol defined in a
regular object file.
* elf32-m68k.c (elf_m68k_relocate_section): If -Bsymbolic, do warn
about undefined symbols, and fill in the GOT entry for a symbol
defined in a regular object file.
(elf_m68k_finish_dynamic_symbol): If -Bsymbolic, output a RELATIVE
reloc rather than a GLOB_DAT reloc for a symbol defined in a
regular object file.
* elf32-sparc.c (elf32_sparc_relocate_section): If -Bsymbolic, do
warn about undefined symbols, and fill in the GOT entry for a
symbol defined in a regular object file.
(elf32_sparc_finish_dynamic_symbol): If -Bsymbolic, output a
RELATIVE reloc rather than a GLOB_DAT reloc for a symbol defined
in a regular object file.
1995-07-10 17:31:31 +00:00
|
|
|
|
if (info->symbolic)
|
|
|
|
|
{
|
|
|
|
|
if (! elf_add_dynamic_entry (info, DT_SYMBOLIC, 0))
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
if (rpath != NULL)
|
|
|
|
|
{
|
|
|
|
|
bfd_size_type indx;
|
|
|
|
|
|
|
|
|
|
indx = _bfd_stringtab_add (elf_hash_table (info)->dynstr, rpath,
|
|
|
|
|
true, true);
|
|
|
|
|
if (indx == (bfd_size_type) -1
|
|
|
|
|
|| ! elf_add_dynamic_entry (info, DT_RPATH, indx))
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
1996-12-31 19:46:37 +00:00
|
|
|
|
if (filter_shlib != NULL)
|
|
|
|
|
{
|
|
|
|
|
bfd_size_type indx;
|
|
|
|
|
|
|
|
|
|
indx = _bfd_stringtab_add (elf_hash_table (info)->dynstr,
|
|
|
|
|
filter_shlib, true, true);
|
|
|
|
|
if (indx == (bfd_size_type) -1
|
|
|
|
|
|| ! elf_add_dynamic_entry (info, DT_FILTER, indx))
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
1997-01-16 22:48:57 +00:00
|
|
|
|
if (auxiliary_filters != NULL)
|
1996-12-31 19:46:37 +00:00
|
|
|
|
{
|
1997-01-16 22:48:57 +00:00
|
|
|
|
const char * const *p;
|
1996-12-31 19:46:37 +00:00
|
|
|
|
|
1997-01-16 22:48:57 +00:00
|
|
|
|
for (p = auxiliary_filters; *p != NULL; p++)
|
|
|
|
|
{
|
|
|
|
|
bfd_size_type indx;
|
|
|
|
|
|
|
|
|
|
indx = _bfd_stringtab_add (elf_hash_table (info)->dynstr,
|
|
|
|
|
*p, true, true);
|
|
|
|
|
if (indx == (bfd_size_type) -1
|
|
|
|
|
|| ! elf_add_dynamic_entry (info, DT_AUXILIARY, indx))
|
|
|
|
|
return false;
|
|
|
|
|
}
|
1996-12-31 19:46:37 +00:00
|
|
|
|
}
|
|
|
|
|
|
1997-06-16 18:41:19 +00:00
|
|
|
|
/* Attach all the symbols to their version information. */
|
|
|
|
|
asvinfo.output_bfd = output_bfd;
|
|
|
|
|
asvinfo.info = info;
|
|
|
|
|
asvinfo.verdefs = verdefs;
|
|
|
|
|
asvinfo.export_dynamic = export_dynamic;
|
|
|
|
|
asvinfo.removed_dynamic = false;
|
|
|
|
|
asvinfo.failed = false;
|
|
|
|
|
|
|
|
|
|
elf_link_hash_traverse (elf_hash_table (info),
|
|
|
|
|
elf_link_assign_sym_version,
|
|
|
|
|
(PTR) &asvinfo);
|
|
|
|
|
if (asvinfo.failed)
|
|
|
|
|
return false;
|
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
/* Find all symbols which were defined in a dynamic object and make
|
|
|
|
|
the backend pick a reasonable value for them. */
|
|
|
|
|
eif.failed = false;
|
|
|
|
|
eif.info = info;
|
|
|
|
|
elf_link_hash_traverse (elf_hash_table (info),
|
|
|
|
|
elf_adjust_dynamic_symbol,
|
|
|
|
|
(PTR) &eif);
|
|
|
|
|
if (eif.failed)
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
/* Add some entries to the .dynamic section. We fill in some of the
|
|
|
|
|
values later, in elf_bfd_final_link, but we must add the entries
|
|
|
|
|
now so that we know the final size of the .dynamic section. */
|
1995-11-17 15:05:44 +00:00
|
|
|
|
h = elf_link_hash_lookup (elf_hash_table (info), "_init", false,
|
|
|
|
|
false, false);
|
|
|
|
|
if (h != NULL
|
|
|
|
|
&& (h->elf_link_hash_flags & (ELF_LINK_HASH_REF_REGULAR
|
|
|
|
|
| ELF_LINK_HASH_DEF_REGULAR)) != 0)
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
{
|
|
|
|
|
if (! elf_add_dynamic_entry (info, DT_INIT, 0))
|
|
|
|
|
return false;
|
|
|
|
|
}
|
1995-11-17 15:05:44 +00:00
|
|
|
|
h = elf_link_hash_lookup (elf_hash_table (info), "_fini", false,
|
|
|
|
|
false, false);
|
|
|
|
|
if (h != NULL
|
|
|
|
|
&& (h->elf_link_hash_flags & (ELF_LINK_HASH_REF_REGULAR
|
|
|
|
|
| ELF_LINK_HASH_DEF_REGULAR)) != 0)
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
{
|
|
|
|
|
if (! elf_add_dynamic_entry (info, DT_FINI, 0))
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
strsize = _bfd_stringtab_size (elf_hash_table (info)->dynstr);
|
|
|
|
|
if (! elf_add_dynamic_entry (info, DT_HASH, 0)
|
|
|
|
|
|| ! elf_add_dynamic_entry (info, DT_STRTAB, 0)
|
|
|
|
|
|| ! elf_add_dynamic_entry (info, DT_SYMTAB, 0)
|
|
|
|
|
|| ! elf_add_dynamic_entry (info, DT_STRSZ, strsize)
|
|
|
|
|
|| ! elf_add_dynamic_entry (info, DT_SYMENT,
|
|
|
|
|
sizeof (Elf_External_Sym)))
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* The backend must work out the sizes of all the other dynamic
|
|
|
|
|
sections. */
|
1997-03-13 02:41:44 +00:00
|
|
|
|
old_dynsymcount = elf_hash_table (info)->dynsymcount;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
if (! (*bed->elf_backend_size_dynamic_sections) (output_bfd, info))
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
if (elf_hash_table (info)->dynamic_sections_created)
|
|
|
|
|
{
|
|
|
|
|
size_t dynsymcount;
|
|
|
|
|
asection *s;
|
|
|
|
|
size_t i;
|
|
|
|
|
size_t bucketcount = 0;
|
|
|
|
|
Elf_Internal_Sym isym;
|
|
|
|
|
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
/* Set up the version definition section. */
|
|
|
|
|
s = bfd_get_section_by_name (dynobj, ".gnu.version_d");
|
|
|
|
|
BFD_ASSERT (s != NULL);
|
1997-03-10 04:43:42 +00:00
|
|
|
|
|
|
|
|
|
/* We may have created additional version definitions if we are
|
|
|
|
|
just linking a regular application. */
|
1997-06-16 18:41:19 +00:00
|
|
|
|
verdefs = asvinfo.verdefs;
|
1997-03-10 04:43:42 +00:00
|
|
|
|
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
if (verdefs == NULL)
|
|
|
|
|
{
|
|
|
|
|
asection **spp;
|
|
|
|
|
|
|
|
|
|
/* Don't include this section in the output file. */
|
|
|
|
|
for (spp = &output_bfd->sections;
|
|
|
|
|
*spp != s->output_section;
|
|
|
|
|
spp = &(*spp)->next)
|
|
|
|
|
;
|
|
|
|
|
*spp = s->output_section->next;
|
|
|
|
|
--output_bfd->section_count;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
unsigned int cdefs;
|
|
|
|
|
bfd_size_type size;
|
|
|
|
|
struct bfd_elf_version_tree *t;
|
|
|
|
|
bfd_byte *p;
|
|
|
|
|
Elf_Internal_Verdef def;
|
|
|
|
|
Elf_Internal_Verdaux defaux;
|
|
|
|
|
|
1997-06-16 18:41:19 +00:00
|
|
|
|
if (asvinfo.removed_dynamic)
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
{
|
|
|
|
|
/* Some dynamic symbols were changed to be local
|
1997-03-13 02:41:44 +00:00
|
|
|
|
symbols. In this case, we renumber all of the
|
|
|
|
|
dynamic symbols, so that we don't have a hole. If
|
|
|
|
|
the backend changed dynsymcount, then assume that the
|
|
|
|
|
new symbols are at the start. This is the case on
|
|
|
|
|
the MIPS. FIXME: The names of the removed symbols
|
|
|
|
|
will still be in the dynamic string table, wasting
|
|
|
|
|
space. */
|
|
|
|
|
elf_hash_table (info)->dynsymcount =
|
|
|
|
|
1 + (elf_hash_table (info)->dynsymcount - old_dynsymcount);
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
elf_link_hash_traverse (elf_hash_table (info),
|
|
|
|
|
elf_link_renumber_dynsyms,
|
|
|
|
|
(PTR) info);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
cdefs = 0;
|
|
|
|
|
size = 0;
|
|
|
|
|
|
|
|
|
|
/* Make space for the base version. */
|
|
|
|
|
size += sizeof (Elf_External_Verdef);
|
|
|
|
|
size += sizeof (Elf_External_Verdaux);
|
|
|
|
|
++cdefs;
|
|
|
|
|
|
|
|
|
|
for (t = verdefs; t != NULL; t = t->next)
|
|
|
|
|
{
|
|
|
|
|
struct bfd_elf_version_deps *n;
|
|
|
|
|
|
|
|
|
|
size += sizeof (Elf_External_Verdef);
|
|
|
|
|
size += sizeof (Elf_External_Verdaux);
|
|
|
|
|
++cdefs;
|
|
|
|
|
|
|
|
|
|
for (n = t->deps; n != NULL; n = n->next)
|
|
|
|
|
size += sizeof (Elf_External_Verdaux);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
s->_raw_size = size;
|
|
|
|
|
s->contents = (bfd_byte *) bfd_alloc (output_bfd, s->_raw_size);
|
|
|
|
|
if (s->contents == NULL && s->_raw_size != 0)
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
/* Fill in the version definition section. */
|
|
|
|
|
|
|
|
|
|
p = s->contents;
|
|
|
|
|
|
|
|
|
|
def.vd_version = VER_DEF_CURRENT;
|
|
|
|
|
def.vd_flags = VER_FLG_BASE;
|
|
|
|
|
def.vd_ndx = 1;
|
|
|
|
|
def.vd_cnt = 1;
|
|
|
|
|
def.vd_aux = sizeof (Elf_External_Verdef);
|
|
|
|
|
def.vd_next = (sizeof (Elf_External_Verdef)
|
|
|
|
|
+ sizeof (Elf_External_Verdaux));
|
|
|
|
|
|
1998-03-27 21:30:53 +00:00
|
|
|
|
if (soname_indx != (bfd_size_type) -1)
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
{
|
|
|
|
|
def.vd_hash = bfd_elf_hash ((const unsigned char *) soname);
|
|
|
|
|
defaux.vda_name = soname_indx;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
const char *name;
|
|
|
|
|
bfd_size_type indx;
|
|
|
|
|
|
|
|
|
|
name = output_bfd->filename;
|
|
|
|
|
def.vd_hash = bfd_elf_hash ((const unsigned char *) name);
|
|
|
|
|
indx = _bfd_stringtab_add (elf_hash_table (info)->dynstr,
|
|
|
|
|
name, true, false);
|
|
|
|
|
if (indx == (bfd_size_type) -1)
|
|
|
|
|
return false;
|
|
|
|
|
defaux.vda_name = indx;
|
|
|
|
|
}
|
|
|
|
|
defaux.vda_next = 0;
|
|
|
|
|
|
|
|
|
|
_bfd_elf_swap_verdef_out (output_bfd, &def,
|
|
|
|
|
(Elf_External_Verdef *)p);
|
|
|
|
|
p += sizeof (Elf_External_Verdef);
|
|
|
|
|
_bfd_elf_swap_verdaux_out (output_bfd, &defaux,
|
|
|
|
|
(Elf_External_Verdaux *) p);
|
|
|
|
|
p += sizeof (Elf_External_Verdaux);
|
|
|
|
|
|
|
|
|
|
for (t = verdefs; t != NULL; t = t->next)
|
|
|
|
|
{
|
|
|
|
|
unsigned int cdeps;
|
|
|
|
|
struct bfd_elf_version_deps *n;
|
|
|
|
|
struct elf_link_hash_entry *h;
|
|
|
|
|
|
|
|
|
|
cdeps = 0;
|
|
|
|
|
for (n = t->deps; n != NULL; n = n->next)
|
|
|
|
|
++cdeps;
|
|
|
|
|
|
|
|
|
|
/* Add a symbol representing this version. */
|
|
|
|
|
h = NULL;
|
|
|
|
|
if (! (_bfd_generic_link_add_one_symbol
|
|
|
|
|
(info, dynobj, t->name, BSF_GLOBAL, bfd_abs_section_ptr,
|
|
|
|
|
(bfd_vma) 0, (const char *) NULL, false,
|
|
|
|
|
get_elf_backend_data (dynobj)->collect,
|
|
|
|
|
(struct bfd_link_hash_entry **) &h)))
|
|
|
|
|
return false;
|
|
|
|
|
h->elf_link_hash_flags &= ~ ELF_LINK_NON_ELF;
|
|
|
|
|
h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
|
|
|
|
|
h->type = STT_OBJECT;
|
|
|
|
|
h->verinfo.vertree = t;
|
|
|
|
|
|
1997-03-10 04:43:42 +00:00
|
|
|
|
if (! _bfd_elf_link_record_dynamic_symbol (info, h))
|
|
|
|
|
return false;
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
|
|
|
|
|
def.vd_version = VER_DEF_CURRENT;
|
|
|
|
|
def.vd_flags = 0;
|
|
|
|
|
if (t->globals == NULL && t->locals == NULL && ! t->used)
|
|
|
|
|
def.vd_flags |= VER_FLG_WEAK;
|
|
|
|
|
def.vd_ndx = t->vernum + 1;
|
|
|
|
|
def.vd_cnt = cdeps + 1;
|
|
|
|
|
def.vd_hash = bfd_elf_hash ((const unsigned char *) t->name);
|
|
|
|
|
def.vd_aux = sizeof (Elf_External_Verdef);
|
|
|
|
|
if (t->next != NULL)
|
|
|
|
|
def.vd_next = (sizeof (Elf_External_Verdef)
|
|
|
|
|
+ (cdeps + 1) * sizeof (Elf_External_Verdaux));
|
|
|
|
|
else
|
|
|
|
|
def.vd_next = 0;
|
|
|
|
|
|
|
|
|
|
_bfd_elf_swap_verdef_out (output_bfd, &def,
|
|
|
|
|
(Elf_External_Verdef *) p);
|
|
|
|
|
p += sizeof (Elf_External_Verdef);
|
|
|
|
|
|
|
|
|
|
defaux.vda_name = h->dynstr_index;
|
|
|
|
|
if (t->deps == NULL)
|
|
|
|
|
defaux.vda_next = 0;
|
|
|
|
|
else
|
|
|
|
|
defaux.vda_next = sizeof (Elf_External_Verdaux);
|
|
|
|
|
t->name_indx = defaux.vda_name;
|
|
|
|
|
|
|
|
|
|
_bfd_elf_swap_verdaux_out (output_bfd, &defaux,
|
|
|
|
|
(Elf_External_Verdaux *) p);
|
|
|
|
|
p += sizeof (Elf_External_Verdaux);
|
|
|
|
|
|
|
|
|
|
for (n = t->deps; n != NULL; n = n->next)
|
|
|
|
|
{
|
1997-11-10 19:33:59 +00:00
|
|
|
|
if (n->version_needed == NULL)
|
|
|
|
|
{
|
|
|
|
|
/* This can happen if there was an error in the
|
|
|
|
|
version script. */
|
|
|
|
|
defaux.vda_name = 0;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
defaux.vda_name = n->version_needed->name_indx;
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
if (n->next == NULL)
|
|
|
|
|
defaux.vda_next = 0;
|
|
|
|
|
else
|
|
|
|
|
defaux.vda_next = sizeof (Elf_External_Verdaux);
|
|
|
|
|
|
|
|
|
|
_bfd_elf_swap_verdaux_out (output_bfd, &defaux,
|
|
|
|
|
(Elf_External_Verdaux *) p);
|
|
|
|
|
p += sizeof (Elf_External_Verdaux);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (! elf_add_dynamic_entry (info, DT_VERDEF, 0)
|
|
|
|
|
|| ! elf_add_dynamic_entry (info, DT_VERDEFNUM, cdefs))
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
elf_tdata (output_bfd)->cverdefs = cdefs;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Work out the size of the version reference section. */
|
|
|
|
|
|
|
|
|
|
s = bfd_get_section_by_name (dynobj, ".gnu.version_r");
|
|
|
|
|
BFD_ASSERT (s != NULL);
|
|
|
|
|
{
|
|
|
|
|
struct elf_find_verdep_info sinfo;
|
|
|
|
|
|
|
|
|
|
sinfo.output_bfd = output_bfd;
|
|
|
|
|
sinfo.info = info;
|
|
|
|
|
sinfo.vers = elf_tdata (output_bfd)->cverdefs;
|
|
|
|
|
if (sinfo.vers == 0)
|
|
|
|
|
sinfo.vers = 1;
|
|
|
|
|
sinfo.failed = false;
|
|
|
|
|
|
|
|
|
|
elf_link_hash_traverse (elf_hash_table (info),
|
|
|
|
|
elf_link_find_version_dependencies,
|
|
|
|
|
(PTR) &sinfo);
|
|
|
|
|
|
|
|
|
|
if (elf_tdata (output_bfd)->verref == NULL)
|
|
|
|
|
{
|
|
|
|
|
asection **spp;
|
|
|
|
|
|
|
|
|
|
/* We don't have any version definitions, so we can just
|
|
|
|
|
remove the section. */
|
|
|
|
|
|
|
|
|
|
for (spp = &output_bfd->sections;
|
|
|
|
|
*spp != s->output_section;
|
|
|
|
|
spp = &(*spp)->next)
|
|
|
|
|
;
|
|
|
|
|
*spp = s->output_section->next;
|
|
|
|
|
--output_bfd->section_count;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
Elf_Internal_Verneed *t;
|
|
|
|
|
unsigned int size;
|
|
|
|
|
unsigned int crefs;
|
|
|
|
|
bfd_byte *p;
|
|
|
|
|
|
|
|
|
|
/* Build the version definition section. */
|
1997-03-10 04:43:42 +00:00
|
|
|
|
size = 0;
|
|
|
|
|
crefs = 0;
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
for (t = elf_tdata (output_bfd)->verref;
|
|
|
|
|
t != NULL;
|
|
|
|
|
t = t->vn_nextref)
|
|
|
|
|
{
|
|
|
|
|
Elf_Internal_Vernaux *a;
|
|
|
|
|
|
|
|
|
|
size += sizeof (Elf_External_Verneed);
|
|
|
|
|
++crefs;
|
|
|
|
|
for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr)
|
|
|
|
|
size += sizeof (Elf_External_Vernaux);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
s->_raw_size = size;
|
|
|
|
|
s->contents = (bfd_byte *) bfd_alloc (output_bfd, size);
|
|
|
|
|
if (s->contents == NULL)
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
p = s->contents;
|
|
|
|
|
for (t = elf_tdata (output_bfd)->verref;
|
|
|
|
|
t != NULL;
|
|
|
|
|
t = t->vn_nextref)
|
|
|
|
|
{
|
|
|
|
|
unsigned int caux;
|
|
|
|
|
Elf_Internal_Vernaux *a;
|
|
|
|
|
bfd_size_type indx;
|
|
|
|
|
|
|
|
|
|
caux = 0;
|
|
|
|
|
for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr)
|
|
|
|
|
++caux;
|
|
|
|
|
|
|
|
|
|
t->vn_version = VER_NEED_CURRENT;
|
|
|
|
|
t->vn_cnt = caux;
|
1997-06-10 21:46:23 +00:00
|
|
|
|
if (elf_dt_name (t->vn_bfd) != NULL)
|
|
|
|
|
indx = _bfd_stringtab_add (elf_hash_table (info)->dynstr,
|
|
|
|
|
elf_dt_name (t->vn_bfd),
|
|
|
|
|
true, false);
|
|
|
|
|
else
|
|
|
|
|
indx = _bfd_stringtab_add (elf_hash_table (info)->dynstr,
|
|
|
|
|
t->vn_bfd->filename, true, false);
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
if (indx == (bfd_size_type) -1)
|
|
|
|
|
return false;
|
|
|
|
|
t->vn_file = indx;
|
|
|
|
|
t->vn_aux = sizeof (Elf_External_Verneed);
|
|
|
|
|
if (t->vn_nextref == NULL)
|
|
|
|
|
t->vn_next = 0;
|
|
|
|
|
else
|
|
|
|
|
t->vn_next = (sizeof (Elf_External_Verneed)
|
|
|
|
|
+ caux * sizeof (Elf_External_Vernaux));
|
|
|
|
|
|
|
|
|
|
_bfd_elf_swap_verneed_out (output_bfd, t,
|
|
|
|
|
(Elf_External_Verneed *) p);
|
|
|
|
|
p += sizeof (Elf_External_Verneed);
|
|
|
|
|
|
|
|
|
|
for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr)
|
|
|
|
|
{
|
|
|
|
|
a->vna_hash = bfd_elf_hash ((const unsigned char *)
|
|
|
|
|
a->vna_nodename);
|
|
|
|
|
indx = _bfd_stringtab_add (elf_hash_table (info)->dynstr,
|
|
|
|
|
a->vna_nodename, true, false);
|
|
|
|
|
if (indx == (bfd_size_type) -1)
|
|
|
|
|
return false;
|
|
|
|
|
a->vna_name = indx;
|
|
|
|
|
if (a->vna_nextptr == NULL)
|
|
|
|
|
a->vna_next = 0;
|
|
|
|
|
else
|
|
|
|
|
a->vna_next = sizeof (Elf_External_Vernaux);
|
|
|
|
|
|
|
|
|
|
_bfd_elf_swap_vernaux_out (output_bfd, a,
|
|
|
|
|
(Elf_External_Vernaux *) p);
|
|
|
|
|
p += sizeof (Elf_External_Vernaux);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (! elf_add_dynamic_entry (info, DT_VERNEED, 0)
|
|
|
|
|
|| ! elf_add_dynamic_entry (info, DT_VERNEEDNUM, crefs))
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
elf_tdata (output_bfd)->cverrefs = crefs;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
dynsymcount = elf_hash_table (info)->dynsymcount;
|
|
|
|
|
|
|
|
|
|
/* Work out the size of the symbol version section. */
|
|
|
|
|
s = bfd_get_section_by_name (dynobj, ".gnu.version");
|
|
|
|
|
BFD_ASSERT (s != NULL);
|
|
|
|
|
if (dynsymcount == 0
|
|
|
|
|
|| (verdefs == NULL && elf_tdata (output_bfd)->verref == NULL))
|
|
|
|
|
{
|
|
|
|
|
asection **spp;
|
|
|
|
|
|
|
|
|
|
/* We don't need any symbol versions; just discard the
|
|
|
|
|
section. */
|
|
|
|
|
for (spp = &output_bfd->sections;
|
|
|
|
|
*spp != s->output_section;
|
|
|
|
|
spp = &(*spp)->next)
|
|
|
|
|
;
|
|
|
|
|
*spp = s->output_section->next;
|
|
|
|
|
--output_bfd->section_count;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
s->_raw_size = dynsymcount * sizeof (Elf_External_Versym);
|
1997-03-13 02:41:44 +00:00
|
|
|
|
s->contents = (bfd_byte *) bfd_zalloc (output_bfd, s->_raw_size);
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
if (s->contents == NULL)
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
if (! elf_add_dynamic_entry (info, DT_VERSYM, 0))
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
/* Set the size of the .dynsym and .hash sections. We counted
|
|
|
|
|
the number of dynamic symbols in elf_link_add_object_symbols.
|
|
|
|
|
We will build the contents of .dynsym and .hash when we build
|
|
|
|
|
the final symbol table, because until then we do not know the
|
|
|
|
|
correct value to give the symbols. We built the .dynstr
|
|
|
|
|
section as we went along in elf_link_add_object_symbols. */
|
|
|
|
|
s = bfd_get_section_by_name (dynobj, ".dynsym");
|
|
|
|
|
BFD_ASSERT (s != NULL);
|
|
|
|
|
s->_raw_size = dynsymcount * sizeof (Elf_External_Sym);
|
|
|
|
|
s->contents = (bfd_byte *) bfd_alloc (output_bfd, s->_raw_size);
|
|
|
|
|
if (s->contents == NULL && s->_raw_size != 0)
|
1995-11-29 22:05:37 +00:00
|
|
|
|
return false;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
|
|
|
|
/* The first entry in .dynsym is a dummy symbol. */
|
|
|
|
|
isym.st_value = 0;
|
|
|
|
|
isym.st_size = 0;
|
|
|
|
|
isym.st_name = 0;
|
|
|
|
|
isym.st_info = 0;
|
|
|
|
|
isym.st_other = 0;
|
|
|
|
|
isym.st_shndx = 0;
|
|
|
|
|
elf_swap_symbol_out (output_bfd, &isym,
|
1995-07-11 19:24:46 +00:00
|
|
|
|
(PTR) (Elf_External_Sym *) s->contents);
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
|
|
|
|
for (i = 0; elf_buckets[i] != 0; i++)
|
|
|
|
|
{
|
|
|
|
|
bucketcount = elf_buckets[i];
|
|
|
|
|
if (dynsymcount < elf_buckets[i + 1])
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
s = bfd_get_section_by_name (dynobj, ".hash");
|
|
|
|
|
BFD_ASSERT (s != NULL);
|
|
|
|
|
s->_raw_size = (2 + bucketcount + dynsymcount) * (ARCH_SIZE / 8);
|
|
|
|
|
s->contents = (bfd_byte *) bfd_alloc (output_bfd, s->_raw_size);
|
|
|
|
|
if (s->contents == NULL)
|
1995-11-29 22:05:37 +00:00
|
|
|
|
return false;
|
* aoutx.h (NAME(aout,slurp_reloc_table)): Cast argument to size_t
for malloc.
* coff-mips.c (mips_relocate_section): Likewise, for memmove.
(mips_relax_section): Likewise, for malloc.
* cofflink.c (process_embedded_commands): Likewise.
(_bfd_coff_final_link): Likewise.
* ecoff.c (_bfd_ecoff_write_object_contents): Likewise.
(ecoff_final_link_debug_accumulate): Likewise.
(ecoff_indirect_link_order): Likewise, for memcpy and malloc.
(ecoff_reloc_link_order): Likewise, for malloc.
* ecofflink.c (ecoff_align_debug): Likewise, for memset.
(ecoff_write_symhdr): Likewise, for malloc.
* elf32-hppa.c (elf32_hppa_read_symext_info): Likewise.
* elf.c (assign_file_positions_except_relocs): Likewise, for
qsort.
* elf32-mips.c (mips_elf_read_ecoff_info): Likewise, for malloc.
* elfcode.h (elf_slurp_reloc_table): Likewise.
* elfcore.h (elf_corefile_note): Likewise.
* elflink.h (elf_link_add_object_symbols): Likewise.
(elf_link_read_relocs): Likewise.
(NAME(bfd_elf,size_dynamic_sections)): Likewise, for memset.
* i386linux.c (bfd_linux_size_dynamic_sections): Likewise.
* ieee.c (do_with_relocs): Likewise.
* linker.c (default_indirect_link_order): Likewise, for malloc.
* nlmcode.h (nlm_object_p): Likewise.
(nlm_write_object_contents): Likewise.
* oasys.c (oasys_set_section_contents): Likewise, for memcpy.
* reloc.c (bfd_generic_get_relocated_section_contents): Likewise,
for malloc.
* section.c (bfd_get_section_contents): Likewise, for memcpy.
* srec.c (srec_get_section_contents): Likewise.
(srec_set_section_contents): Likewise.
* sunos.c (bfd_sunos_size_dynamic_sections): Likewise, for
realloc and memset.
(sunos_scan_relocs): Likewise, for malloc.
(sunos_scan_dynamic_symbol): Likewise, for realloc.
* syms.c (_bfd_generic_read_minisymbols): Likewise, for malloc.
* versados.c (versados_get_section_contents): Likewise, for
memcpy.
1995-07-13 18:14:45 +00:00
|
|
|
|
memset (s->contents, 0, (size_t) s->_raw_size);
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
|
|
|
|
put_word (output_bfd, bucketcount, s->contents);
|
|
|
|
|
put_word (output_bfd, dynsymcount, s->contents + (ARCH_SIZE / 8));
|
|
|
|
|
|
|
|
|
|
elf_hash_table (info)->bucketcount = bucketcount;
|
|
|
|
|
|
|
|
|
|
s = bfd_get_section_by_name (dynobj, ".dynstr");
|
|
|
|
|
BFD_ASSERT (s != NULL);
|
|
|
|
|
s->_raw_size = _bfd_stringtab_size (elf_hash_table (info)->dynstr);
|
|
|
|
|
|
|
|
|
|
if (! elf_add_dynamic_entry (info, DT_NULL, 0))
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
}
|
1996-01-22 16:43:35 +00:00
|
|
|
|
|
1997-06-16 18:41:19 +00:00
|
|
|
|
/* Fix up the flags for a symbol. This handles various cases which
|
|
|
|
|
can only be fixed after all the input files are seen. This is
|
|
|
|
|
currently called by both adjust_dynamic_symbol and
|
|
|
|
|
assign_sym_version, which is unnecessary but perhaps more robust in
|
|
|
|
|
the face of future changes. */
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
|
|
|
|
static boolean
|
1997-06-16 18:41:19 +00:00
|
|
|
|
elf_fix_symbol_flags (h, eif)
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
struct elf_link_hash_entry *h;
|
1997-06-16 18:41:19 +00:00
|
|
|
|
struct elf_info_failed *eif;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
{
|
1996-02-01 23:15:23 +00:00
|
|
|
|
/* If this symbol was mentioned in a non-ELF file, try to set
|
|
|
|
|
DEF_REGULAR and REF_REGULAR correctly. This is the only way to
|
|
|
|
|
permit a non-ELF file to correctly refer to a symbol defined in
|
|
|
|
|
an ELF dynamic object. */
|
|
|
|
|
if ((h->elf_link_hash_flags & ELF_LINK_NON_ELF) != 0)
|
|
|
|
|
{
|
|
|
|
|
if (h->root.type != bfd_link_hash_defined
|
|
|
|
|
&& h->root.type != bfd_link_hash_defweak)
|
|
|
|
|
h->elf_link_hash_flags |= ELF_LINK_HASH_REF_REGULAR;
|
|
|
|
|
else
|
|
|
|
|
{
|
1996-02-05 15:47:53 +00:00
|
|
|
|
if (h->root.u.def.section->owner != NULL
|
|
|
|
|
&& (bfd_get_flavour (h->root.u.def.section->owner)
|
|
|
|
|
== bfd_target_elf_flavour))
|
1996-02-01 23:15:23 +00:00
|
|
|
|
h->elf_link_hash_flags |= ELF_LINK_HASH_REF_REGULAR;
|
|
|
|
|
else
|
|
|
|
|
h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
|
|
|
|
|
}
|
|
|
|
|
|
1997-06-16 18:41:19 +00:00
|
|
|
|
if (h->dynindx == -1
|
|
|
|
|
&& ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
|
|
|
|
|
|| (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) != 0))
|
1996-02-01 23:15:23 +00:00
|
|
|
|
{
|
|
|
|
|
if (! _bfd_elf_link_record_dynamic_symbol (eif->info, h))
|
|
|
|
|
{
|
|
|
|
|
eif->failed = true;
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
1996-04-01 17:42:59 +00:00
|
|
|
|
/* If this is a final link, and the symbol was defined as a common
|
|
|
|
|
symbol in a regular object file, and there was no definition in
|
|
|
|
|
any dynamic object, then the linker will have allocated space for
|
|
|
|
|
the symbol in a common section but the ELF_LINK_HASH_DEF_REGULAR
|
|
|
|
|
flag will not have been set. */
|
|
|
|
|
if (h->root.type == bfd_link_hash_defined
|
|
|
|
|
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0
|
|
|
|
|
&& (h->elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR) != 0
|
|
|
|
|
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0
|
|
|
|
|
&& (h->root.u.def.section->owner->flags & DYNAMIC) == 0)
|
|
|
|
|
h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
|
|
|
|
|
|
Based on patches from Eric Youngdale <eric@aib.com>:
* elflink.h (NAME(bfd_elf,size_dynamic_sections)): If -Bsymbolic,
output a DT_SYMBOLIC dynamic entry.
(elf_adjust_dynamic_symbol): If -Bsymbolic, don't require a PLT
entry for a locally defined symbol.
* elf32-i386.c (elf_i386_relocate_section): If -Bsymbolic, do warn
about undefined symbols, and fill in the GOT entry for a symbol
defined in a regular object file.
(elf_i386_finish_dynamic_symbol): If -Bsymbolic, output a RELATIVE
reloc rather than a GLOB_DAT reloc for a symbol defined in a
regular object file.
* elf32-m68k.c (elf_m68k_relocate_section): If -Bsymbolic, do warn
about undefined symbols, and fill in the GOT entry for a symbol
defined in a regular object file.
(elf_m68k_finish_dynamic_symbol): If -Bsymbolic, output a RELATIVE
reloc rather than a GLOB_DAT reloc for a symbol defined in a
regular object file.
* elf32-sparc.c (elf32_sparc_relocate_section): If -Bsymbolic, do
warn about undefined symbols, and fill in the GOT entry for a
symbol defined in a regular object file.
(elf32_sparc_finish_dynamic_symbol): If -Bsymbolic, output a
RELATIVE reloc rather than a GLOB_DAT reloc for a symbol defined
in a regular object file.
1995-07-10 17:31:31 +00:00
|
|
|
|
/* If -Bsymbolic was used (which means to bind references to global
|
|
|
|
|
symbols to the definition within the shared object), and this
|
|
|
|
|
symbol was defined in a regular object, then it actually doesn't
|
|
|
|
|
need a PLT entry. */
|
|
|
|
|
if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0
|
|
|
|
|
&& eif->info->shared
|
|
|
|
|
&& eif->info->symbolic
|
|
|
|
|
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0)
|
|
|
|
|
h->elf_link_hash_flags &=~ ELF_LINK_HASH_NEEDS_PLT;
|
|
|
|
|
|
1997-06-16 18:41:19 +00:00
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Make the backend pick a good value for a dynamic symbol. This is
|
|
|
|
|
called via elf_link_hash_traverse, and also calls itself
|
|
|
|
|
recursively. */
|
|
|
|
|
|
|
|
|
|
static boolean
|
|
|
|
|
elf_adjust_dynamic_symbol (h, data)
|
|
|
|
|
struct elf_link_hash_entry *h;
|
|
|
|
|
PTR data;
|
|
|
|
|
{
|
|
|
|
|
struct elf_info_failed *eif = (struct elf_info_failed *) data;
|
|
|
|
|
bfd *dynobj;
|
|
|
|
|
struct elf_backend_data *bed;
|
|
|
|
|
|
|
|
|
|
/* Ignore indirect symbols. These are added by the versioning code. */
|
|
|
|
|
if (h->root.type == bfd_link_hash_indirect)
|
|
|
|
|
return true;
|
|
|
|
|
|
|
|
|
|
/* Fix the symbol flags. */
|
|
|
|
|
if (! elf_fix_symbol_flags (h, eif))
|
|
|
|
|
return false;
|
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
/* If this symbol does not require a PLT entry, and it is not
|
|
|
|
|
defined by a dynamic object, or is not referenced by a regular
|
1995-08-14 15:57:17 +00:00
|
|
|
|
object, ignore it. We do have to handle a weak defined symbol,
|
|
|
|
|
even if no regular object refers to it, if we decided to add it
|
|
|
|
|
to the dynamic symbol table. FIXME: Do we normally need to worry
|
|
|
|
|
about symbols which are defined by one dynamic object and
|
|
|
|
|
referenced by another one? */
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) == 0
|
|
|
|
|
&& ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0
|
|
|
|
|
|| (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0
|
1995-08-14 15:57:17 +00:00
|
|
|
|
|| ((h->elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR) == 0
|
|
|
|
|
&& (h->weakdef == NULL || h->weakdef->dynindx == -1))))
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
return true;
|
|
|
|
|
|
|
|
|
|
/* If we've already adjusted this symbol, don't do it again. This
|
|
|
|
|
can happen via a recursive call. */
|
|
|
|
|
if ((h->elf_link_hash_flags & ELF_LINK_HASH_DYNAMIC_ADJUSTED) != 0)
|
|
|
|
|
return true;
|
|
|
|
|
|
|
|
|
|
/* Don't look at this symbol again. Note that we must set this
|
|
|
|
|
after checking the above conditions, because we may look at a
|
|
|
|
|
symbol once, decide not to do anything, and then get called
|
|
|
|
|
recursively later after REF_REGULAR is set below. */
|
|
|
|
|
h->elf_link_hash_flags |= ELF_LINK_HASH_DYNAMIC_ADJUSTED;
|
|
|
|
|
|
|
|
|
|
/* If this is a weak definition, and we know a real definition, and
|
|
|
|
|
the real symbol is not itself defined by a regular object file,
|
|
|
|
|
then get a good value for the real definition. We handle the
|
|
|
|
|
real symbol first, for the convenience of the backend routine.
|
|
|
|
|
|
|
|
|
|
Note that there is a confusing case here. If the real definition
|
|
|
|
|
is defined by a regular object file, we don't get the real symbol
|
|
|
|
|
from the dynamic object, but we do get the weak symbol. If the
|
|
|
|
|
processor backend uses a COPY reloc, then if some routine in the
|
|
|
|
|
dynamic object changes the real symbol, we will not see that
|
|
|
|
|
change in the corresponding weak symbol. This is the way other
|
|
|
|
|
ELF linkers work as well, and seems to be a result of the shared
|
|
|
|
|
library model.
|
|
|
|
|
|
|
|
|
|
I will clarify this issue. Most SVR4 shared libraries define the
|
|
|
|
|
variable _timezone and define timezone as a weak synonym. The
|
|
|
|
|
tzset call changes _timezone. If you write
|
|
|
|
|
extern int timezone;
|
|
|
|
|
int _timezone = 5;
|
|
|
|
|
int main () { tzset (); printf ("%d %d\n", timezone, _timezone); }
|
|
|
|
|
you might expect that, since timezone is a synonym for _timezone,
|
|
|
|
|
the same number will print both times. However, if the processor
|
|
|
|
|
backend uses a COPY reloc, then actually timezone will be copied
|
|
|
|
|
into your process image, and, since you define _timezone
|
|
|
|
|
yourself, _timezone will not. Thus timezone and _timezone will
|
|
|
|
|
wind up at different memory locations. The tzset call will set
|
|
|
|
|
_timezone, leaving timezone unchanged. */
|
|
|
|
|
|
|
|
|
|
if (h->weakdef != NULL)
|
|
|
|
|
{
|
|
|
|
|
struct elf_link_hash_entry *weakdef;
|
|
|
|
|
|
|
|
|
|
BFD_ASSERT (h->root.type == bfd_link_hash_defined
|
|
|
|
|
|| h->root.type == bfd_link_hash_defweak);
|
|
|
|
|
weakdef = h->weakdef;
|
|
|
|
|
BFD_ASSERT (weakdef->root.type == bfd_link_hash_defined
|
|
|
|
|
|| weakdef->root.type == bfd_link_hash_defweak);
|
|
|
|
|
BFD_ASSERT (weakdef->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC);
|
|
|
|
|
if ((weakdef->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0)
|
|
|
|
|
{
|
|
|
|
|
/* This symbol is defined by a regular object file, so we
|
|
|
|
|
will not do anything special. Clear weakdef for the
|
|
|
|
|
convenience of the processor backend. */
|
|
|
|
|
h->weakdef = NULL;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* There is an implicit reference by a regular object file
|
|
|
|
|
via the weak symbol. */
|
|
|
|
|
weakdef->elf_link_hash_flags |= ELF_LINK_HASH_REF_REGULAR;
|
|
|
|
|
if (! elf_adjust_dynamic_symbol (weakdef, (PTR) eif))
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
dynobj = elf_hash_table (eif->info)->dynobj;
|
|
|
|
|
bed = get_elf_backend_data (dynobj);
|
|
|
|
|
if (! (*bed->elf_backend_adjust_dynamic_symbol) (eif->info, h))
|
|
|
|
|
{
|
|
|
|
|
eif->failed = true;
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
/* This routine is used to export all defined symbols into the dynamic
|
|
|
|
|
symbol table. It is called via elf_link_hash_traverse. */
|
|
|
|
|
|
|
|
|
|
static boolean
|
|
|
|
|
elf_export_symbol (h, data)
|
|
|
|
|
struct elf_link_hash_entry *h;
|
|
|
|
|
PTR data;
|
|
|
|
|
{
|
|
|
|
|
struct elf_info_failed *eif = (struct elf_info_failed *) data;
|
|
|
|
|
|
1997-03-13 02:41:44 +00:00
|
|
|
|
/* Ignore indirect symbols. These are added by the versioning code. */
|
|
|
|
|
if (h->root.type == bfd_link_hash_indirect)
|
|
|
|
|
return true;
|
|
|
|
|
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
if (h->dynindx == -1
|
|
|
|
|
&& (h->elf_link_hash_flags
|
|
|
|
|
& (ELF_LINK_HASH_DEF_REGULAR | ELF_LINK_HASH_REF_REGULAR)) != 0)
|
|
|
|
|
{
|
|
|
|
|
if (! _bfd_elf_link_record_dynamic_symbol (eif->info, h))
|
|
|
|
|
{
|
|
|
|
|
eif->failed = true;
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Look through the symbols which are defined in other shared
|
|
|
|
|
libraries and referenced here. Update the list of version
|
|
|
|
|
dependencies. This will be put into the .gnu.version_r section.
|
|
|
|
|
This function is called via elf_link_hash_traverse. */
|
|
|
|
|
|
|
|
|
|
static boolean
|
|
|
|
|
elf_link_find_version_dependencies (h, data)
|
|
|
|
|
struct elf_link_hash_entry *h;
|
|
|
|
|
PTR data;
|
|
|
|
|
{
|
|
|
|
|
struct elf_find_verdep_info *rinfo = (struct elf_find_verdep_info *) data;
|
|
|
|
|
Elf_Internal_Verneed *t;
|
|
|
|
|
Elf_Internal_Vernaux *a;
|
|
|
|
|
|
|
|
|
|
/* We only care about symbols defined in shared objects with version
|
|
|
|
|
information. */
|
|
|
|
|
if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0
|
1997-03-03 00:27:52 +00:00
|
|
|
|
|| (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
|| h->dynindx == -1
|
|
|
|
|
|| h->verinfo.verdef == NULL)
|
|
|
|
|
return true;
|
|
|
|
|
|
|
|
|
|
/* See if we already know about this version. */
|
|
|
|
|
for (t = elf_tdata (rinfo->output_bfd)->verref; t != NULL; t = t->vn_nextref)
|
|
|
|
|
{
|
1997-06-06 21:19:41 +00:00
|
|
|
|
if (t->vn_bfd != h->verinfo.verdef->vd_bfd)
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
for (a = t->vn_auxptr; a != NULL; a = a->vna_nextptr)
|
|
|
|
|
if (a->vna_nodename == h->verinfo.verdef->vd_nodename)
|
|
|
|
|
return true;
|
|
|
|
|
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* This is a new version. Add it to tree we are building. */
|
|
|
|
|
|
|
|
|
|
if (t == NULL)
|
|
|
|
|
{
|
|
|
|
|
t = (Elf_Internal_Verneed *) bfd_zalloc (rinfo->output_bfd, sizeof *t);
|
|
|
|
|
if (t == NULL)
|
|
|
|
|
{
|
|
|
|
|
rinfo->failed = true;
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
t->vn_bfd = h->verinfo.verdef->vd_bfd;
|
|
|
|
|
t->vn_nextref = elf_tdata (rinfo->output_bfd)->verref;
|
|
|
|
|
elf_tdata (rinfo->output_bfd)->verref = t;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
a = (Elf_Internal_Vernaux *) bfd_zalloc (rinfo->output_bfd, sizeof *a);
|
|
|
|
|
|
|
|
|
|
/* Note that we are copying a string pointer here, and testing it
|
|
|
|
|
above. If bfd_elf_string_from_elf_section is ever changed to
|
|
|
|
|
discard the string data when low in memory, this will have to be
|
|
|
|
|
fixed. */
|
|
|
|
|
a->vna_nodename = h->verinfo.verdef->vd_nodename;
|
|
|
|
|
|
|
|
|
|
a->vna_flags = h->verinfo.verdef->vd_flags;
|
|
|
|
|
a->vna_nextptr = t->vn_auxptr;
|
|
|
|
|
|
|
|
|
|
h->verinfo.verdef->vd_exp_refno = rinfo->vers;
|
|
|
|
|
++rinfo->vers;
|
|
|
|
|
|
|
|
|
|
a->vna_other = h->verinfo.verdef->vd_exp_refno + 1;
|
|
|
|
|
|
|
|
|
|
t->vn_auxptr = a;
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Figure out appropriate versions for all the symbols. We may not
|
|
|
|
|
have the version number script until we have read all of the input
|
|
|
|
|
files, so until that point we don't know which symbols should be
|
|
|
|
|
local. This function is called via elf_link_hash_traverse. */
|
|
|
|
|
|
|
|
|
|
static boolean
|
|
|
|
|
elf_link_assign_sym_version (h, data)
|
|
|
|
|
struct elf_link_hash_entry *h;
|
|
|
|
|
PTR data;
|
|
|
|
|
{
|
|
|
|
|
struct elf_assign_sym_version_info *sinfo =
|
|
|
|
|
(struct elf_assign_sym_version_info *) data;
|
|
|
|
|
struct bfd_link_info *info = sinfo->info;
|
1997-06-16 18:41:19 +00:00
|
|
|
|
struct elf_info_failed eif;
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
char *p;
|
|
|
|
|
|
1997-06-16 18:41:19 +00:00
|
|
|
|
/* Fix the symbol flags. */
|
|
|
|
|
eif.failed = false;
|
|
|
|
|
eif.info = info;
|
|
|
|
|
if (! elf_fix_symbol_flags (h, &eif))
|
|
|
|
|
{
|
|
|
|
|
if (eif.failed)
|
|
|
|
|
sinfo->failed = true;
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
/* We only need version numbers for symbols defined in regular
|
|
|
|
|
objects. */
|
|
|
|
|
if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
|
|
|
|
|
return true;
|
|
|
|
|
|
|
|
|
|
p = strchr (h->root.root.string, ELF_VER_CHR);
|
|
|
|
|
if (p != NULL && h->verinfo.vertree == NULL)
|
|
|
|
|
{
|
|
|
|
|
struct bfd_elf_version_tree *t;
|
|
|
|
|
boolean hidden;
|
|
|
|
|
|
|
|
|
|
hidden = true;
|
|
|
|
|
|
|
|
|
|
/* There are two consecutive ELF_VER_CHR characters if this is
|
|
|
|
|
not a hidden symbol. */
|
|
|
|
|
++p;
|
|
|
|
|
if (*p == ELF_VER_CHR)
|
|
|
|
|
{
|
|
|
|
|
hidden = false;
|
|
|
|
|
++p;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If there is no version string, we can just return out. */
|
|
|
|
|
if (*p == '\0')
|
|
|
|
|
{
|
|
|
|
|
if (hidden)
|
|
|
|
|
h->elf_link_hash_flags |= ELF_LINK_HIDDEN;
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Look for the version. If we find it, it is no longer weak. */
|
|
|
|
|
for (t = sinfo->verdefs; t != NULL; t = t->next)
|
|
|
|
|
{
|
|
|
|
|
if (strcmp (t->name, p) == 0)
|
|
|
|
|
{
|
1997-10-17 07:04:28 +00:00
|
|
|
|
int len;
|
|
|
|
|
char *alc;
|
|
|
|
|
struct bfd_elf_version_expr *d;
|
|
|
|
|
|
|
|
|
|
len = p - h->root.root.string;
|
|
|
|
|
alc = bfd_alloc (sinfo->output_bfd, len);
|
|
|
|
|
if (alc == NULL)
|
|
|
|
|
return false;
|
|
|
|
|
strncpy (alc, h->root.root.string, len - 1);
|
|
|
|
|
alc[len - 1] = '\0';
|
|
|
|
|
if (alc[len - 2] == ELF_VER_CHR)
|
|
|
|
|
alc[len - 2] = '\0';
|
|
|
|
|
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
h->verinfo.vertree = t;
|
|
|
|
|
t->used = true;
|
1997-10-17 07:04:28 +00:00
|
|
|
|
d = NULL;
|
|
|
|
|
|
|
|
|
|
if (t->globals != NULL)
|
|
|
|
|
{
|
|
|
|
|
for (d = t->globals; d != NULL; d = d->next)
|
|
|
|
|
{
|
|
|
|
|
if ((d->match[0] == '*' && d->match[1] == '\0')
|
|
|
|
|
|| fnmatch (d->match, alc, 0) == 0)
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
1997-03-10 04:43:42 +00:00
|
|
|
|
|
|
|
|
|
/* See if there is anything to force this symbol to
|
|
|
|
|
local scope. */
|
1997-10-17 07:04:28 +00:00
|
|
|
|
if (d == NULL && t->locals != NULL)
|
1997-03-10 04:43:42 +00:00
|
|
|
|
{
|
|
|
|
|
for (d = t->locals; d != NULL; d = d->next)
|
|
|
|
|
{
|
|
|
|
|
if ((d->match[0] == '*' && d->match[1] == '\0')
|
|
|
|
|
|| fnmatch (d->match, alc, 0) == 0)
|
|
|
|
|
{
|
|
|
|
|
if (h->dynindx != -1
|
|
|
|
|
&& info->shared
|
1997-06-16 18:41:19 +00:00
|
|
|
|
&& ! sinfo->export_dynamic)
|
1997-03-10 04:43:42 +00:00
|
|
|
|
{
|
|
|
|
|
sinfo->removed_dynamic = true;
|
1997-03-11 06:46:46 +00:00
|
|
|
|
h->elf_link_hash_flags |= ELF_LINK_FORCED_LOCAL;
|
1997-06-16 18:41:19 +00:00
|
|
|
|
h->elf_link_hash_flags &=~
|
|
|
|
|
ELF_LINK_HASH_NEEDS_PLT;
|
1997-03-10 04:43:42 +00:00
|
|
|
|
h->dynindx = -1;
|
|
|
|
|
/* FIXME: The name of the symbol has
|
|
|
|
|
already been recorded in the dynamic
|
|
|
|
|
string table section. */
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
1997-10-17 07:04:28 +00:00
|
|
|
|
bfd_release (sinfo->output_bfd, alc);
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
1997-03-10 04:43:42 +00:00
|
|
|
|
/* If we are building an application, we need to create a
|
|
|
|
|
version node for this version. */
|
|
|
|
|
if (t == NULL && ! info->shared)
|
|
|
|
|
{
|
|
|
|
|
struct bfd_elf_version_tree **pp;
|
|
|
|
|
int version_index;
|
|
|
|
|
|
|
|
|
|
/* If we aren't going to export this symbol, we don't need
|
|
|
|
|
to worry about it. */
|
|
|
|
|
if (h->dynindx == -1)
|
|
|
|
|
return true;
|
|
|
|
|
|
|
|
|
|
t = ((struct bfd_elf_version_tree *)
|
|
|
|
|
bfd_alloc (sinfo->output_bfd, sizeof *t));
|
|
|
|
|
if (t == NULL)
|
|
|
|
|
{
|
|
|
|
|
sinfo->failed = true;
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
t->next = NULL;
|
|
|
|
|
t->name = p;
|
|
|
|
|
t->globals = NULL;
|
|
|
|
|
t->locals = NULL;
|
|
|
|
|
t->deps = NULL;
|
|
|
|
|
t->name_indx = (unsigned int) -1;
|
|
|
|
|
t->used = true;
|
|
|
|
|
|
|
|
|
|
version_index = 1;
|
|
|
|
|
for (pp = &sinfo->verdefs; *pp != NULL; pp = &(*pp)->next)
|
|
|
|
|
++version_index;
|
|
|
|
|
t->vernum = version_index;
|
|
|
|
|
|
|
|
|
|
*pp = t;
|
|
|
|
|
|
|
|
|
|
h->verinfo.vertree = t;
|
|
|
|
|
}
|
|
|
|
|
else if (t == NULL)
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
{
|
1997-03-10 04:43:42 +00:00
|
|
|
|
/* We could not find the version for a symbol when
|
|
|
|
|
generating a shared archive. Return an error. */
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
(*_bfd_error_handler)
|
1998-04-22 05:13:54 +00:00
|
|
|
|
(_("%s: undefined versioned symbol name %s"),
|
1997-03-11 06:46:46 +00:00
|
|
|
|
bfd_get_filename (sinfo->output_bfd), h->root.root.string);
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
bfd_set_error (bfd_error_bad_value);
|
|
|
|
|
sinfo->failed = true;
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (hidden)
|
|
|
|
|
h->elf_link_hash_flags |= ELF_LINK_HIDDEN;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If we don't have a version for this symbol, see if we can find
|
|
|
|
|
something. */
|
|
|
|
|
if (h->verinfo.vertree == NULL && sinfo->verdefs != NULL)
|
|
|
|
|
{
|
|
|
|
|
struct bfd_elf_version_tree *t;
|
|
|
|
|
struct bfd_elf_version_tree *deflt;
|
|
|
|
|
struct bfd_elf_version_expr *d;
|
|
|
|
|
|
|
|
|
|
/* See if can find what version this symbol is in. If the
|
1997-06-16 18:41:19 +00:00
|
|
|
|
symbol is supposed to be local, then don't actually register
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
it. */
|
|
|
|
|
deflt = NULL;
|
|
|
|
|
for (t = sinfo->verdefs; t != NULL; t = t->next)
|
|
|
|
|
{
|
|
|
|
|
if (t->globals != NULL)
|
|
|
|
|
{
|
|
|
|
|
for (d = t->globals; d != NULL; d = d->next)
|
|
|
|
|
{
|
|
|
|
|
if (fnmatch (d->match, h->root.root.string, 0) == 0)
|
|
|
|
|
{
|
|
|
|
|
h->verinfo.vertree = t;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (d != NULL)
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (t->locals != NULL)
|
|
|
|
|
{
|
|
|
|
|
for (d = t->locals; d != NULL; d = d->next)
|
|
|
|
|
{
|
|
|
|
|
if (d->match[0] == '*' && d->match[1] == '\0')
|
|
|
|
|
deflt = t;
|
|
|
|
|
else if (fnmatch (d->match, h->root.root.string, 0) == 0)
|
|
|
|
|
{
|
|
|
|
|
h->verinfo.vertree = t;
|
|
|
|
|
if (h->dynindx != -1
|
|
|
|
|
&& info->shared
|
1997-06-16 18:41:19 +00:00
|
|
|
|
&& ! sinfo->export_dynamic)
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
{
|
|
|
|
|
sinfo->removed_dynamic = true;
|
1997-03-11 06:46:46 +00:00
|
|
|
|
h->elf_link_hash_flags |= ELF_LINK_FORCED_LOCAL;
|
1997-06-16 18:41:19 +00:00
|
|
|
|
h->elf_link_hash_flags &=~ ELF_LINK_HASH_NEEDS_PLT;
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
h->dynindx = -1;
|
|
|
|
|
/* FIXME: The name of the symbol has already
|
|
|
|
|
been recorded in the dynamic string table
|
|
|
|
|
section. */
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (d != NULL)
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (deflt != NULL && h->verinfo.vertree == NULL)
|
|
|
|
|
{
|
|
|
|
|
h->verinfo.vertree = deflt;
|
|
|
|
|
if (h->dynindx != -1
|
|
|
|
|
&& info->shared
|
1997-06-16 18:41:19 +00:00
|
|
|
|
&& ! sinfo->export_dynamic)
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
{
|
|
|
|
|
sinfo->removed_dynamic = true;
|
1997-03-11 06:46:46 +00:00
|
|
|
|
h->elf_link_hash_flags |= ELF_LINK_FORCED_LOCAL;
|
1997-06-16 18:41:19 +00:00
|
|
|
|
h->elf_link_hash_flags &=~ ELF_LINK_HASH_NEEDS_PLT;
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
h->dynindx = -1;
|
|
|
|
|
/* FIXME: The name of the symbol has already been
|
|
|
|
|
recorded in the dynamic string table section. */
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* This function is used to renumber the dynamic symbols, if some of
|
|
|
|
|
them are removed because they are marked as local. This is called
|
|
|
|
|
via elf_link_hash_traverse. */
|
|
|
|
|
|
|
|
|
|
static boolean
|
|
|
|
|
elf_link_renumber_dynsyms (h, data)
|
|
|
|
|
struct elf_link_hash_entry *h;
|
|
|
|
|
PTR data;
|
|
|
|
|
{
|
|
|
|
|
struct bfd_link_info *info = (struct bfd_link_info *) data;
|
|
|
|
|
|
|
|
|
|
if (h->dynindx != -1)
|
|
|
|
|
{
|
|
|
|
|
h->dynindx = elf_hash_table (info)->dynsymcount;
|
|
|
|
|
++elf_hash_table (info)->dynsymcount;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
/* Final phase of ELF linker. */
|
|
|
|
|
|
|
|
|
|
/* A structure we use to avoid passing large numbers of arguments. */
|
|
|
|
|
|
|
|
|
|
struct elf_final_link_info
|
|
|
|
|
{
|
|
|
|
|
/* General link information. */
|
|
|
|
|
struct bfd_link_info *info;
|
|
|
|
|
/* Output BFD. */
|
|
|
|
|
bfd *output_bfd;
|
|
|
|
|
/* Symbol string table. */
|
|
|
|
|
struct bfd_strtab_hash *symstrtab;
|
|
|
|
|
/* .dynsym section. */
|
|
|
|
|
asection *dynsym_sec;
|
|
|
|
|
/* .hash section. */
|
|
|
|
|
asection *hash_sec;
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
/* symbol version section (.gnu.version). */
|
|
|
|
|
asection *symver_sec;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
/* Buffer large enough to hold contents of any section. */
|
|
|
|
|
bfd_byte *contents;
|
|
|
|
|
/* Buffer large enough to hold external relocs of any section. */
|
|
|
|
|
PTR external_relocs;
|
|
|
|
|
/* Buffer large enough to hold internal relocs of any section. */
|
|
|
|
|
Elf_Internal_Rela *internal_relocs;
|
|
|
|
|
/* Buffer large enough to hold external local symbols of any input
|
|
|
|
|
BFD. */
|
|
|
|
|
Elf_External_Sym *external_syms;
|
|
|
|
|
/* Buffer large enough to hold internal local symbols of any input
|
|
|
|
|
BFD. */
|
|
|
|
|
Elf_Internal_Sym *internal_syms;
|
|
|
|
|
/* Array large enough to hold a symbol index for each local symbol
|
|
|
|
|
of any input BFD. */
|
|
|
|
|
long *indices;
|
|
|
|
|
/* Array large enough to hold a section pointer for each local
|
|
|
|
|
symbol of any input BFD. */
|
|
|
|
|
asection **sections;
|
|
|
|
|
/* Buffer to hold swapped out symbols. */
|
|
|
|
|
Elf_External_Sym *symbuf;
|
|
|
|
|
/* Number of swapped out symbols in buffer. */
|
|
|
|
|
size_t symbuf_count;
|
|
|
|
|
/* Number of symbols which fit in symbuf. */
|
|
|
|
|
size_t symbuf_size;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static boolean elf_link_output_sym
|
|
|
|
|
PARAMS ((struct elf_final_link_info *, const char *,
|
|
|
|
|
Elf_Internal_Sym *, asection *));
|
|
|
|
|
static boolean elf_link_flush_output_syms
|
|
|
|
|
PARAMS ((struct elf_final_link_info *));
|
|
|
|
|
static boolean elf_link_output_extsym
|
|
|
|
|
PARAMS ((struct elf_link_hash_entry *, PTR));
|
|
|
|
|
static boolean elf_link_input_bfd
|
|
|
|
|
PARAMS ((struct elf_final_link_info *, bfd *));
|
|
|
|
|
static boolean elf_reloc_link_order
|
|
|
|
|
PARAMS ((bfd *, struct bfd_link_info *, asection *,
|
|
|
|
|
struct bfd_link_order *));
|
|
|
|
|
|
1997-03-11 06:46:46 +00:00
|
|
|
|
/* This struct is used to pass information to elf_link_output_extsym. */
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
1997-03-11 06:46:46 +00:00
|
|
|
|
struct elf_outext_info
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
{
|
|
|
|
|
boolean failed;
|
1997-03-11 06:46:46 +00:00
|
|
|
|
boolean localsyms;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
struct elf_final_link_info *finfo;
|
Fri Jan 3 16:58:31 1997 Richard Henderson <rth@tamu.edu>
elf64-alpha multiple .got rewrite:
* elf-bfd.h (struct elf_backend_data): Add always_size_sections entry.
(bfd_elf*_mkobject): Don't define here ...
* elfxx-target.h: ... but rather here. Default always_size_sections
hook to NULL.
* elf.c (elf_mkobject): Rename to bfd_elf_mkobject, since that was
what the #defines in elf-bfd.h transmuted it to anyway.
* section.c: Add SEC_LINKER_CREATED flag.
* bfd-in2.h: Rebuild.
* elf32-i386.c (elf_i386_check_relocs): Add SEC_LINKER_CREATED to
relocation section flags.
(elf_i386_size_dynamic_sections): Use SEC_LINKER_CREATED instead of
SEC_IN_MEMORY to recognize generated bits.
* elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_size_dynamic_sections):
Likewise.
* elf32-mips.c (mips_elf_final_link, mips_elf_create_dynamic_sections,
mips_elf_create_compact_rel_section, mips_elf_create_got_section,
mips_elf_check_relocs, mips_elf_size_dynamic_sections): Likewise.
* elf32-ppc.c (ppc_elf_create_linker_section,
ppc_elf_size_dynamic_sections): Likewise.
* elf32-sparc.c (elf32_sparc_check_relocs,
elf32_sparc_size_dynamic_sections): Likewise.
* elflink.c (_bfd_elf_create_got_section): Add SEC_LINKER_CREATED to
section flags.
(_bfd_elf_create_dynamic_sections): Likewise.
(_bfd_elf_make_linker_section_rela): Likewise.
* elflink.h (elf_link_create_dynamic_sections): Likewise.
(bfd_elf,size_dynamic_sections): Call the always_size_sections hook.
(elf_bfd_final_link): Use SEC_LINKER_CREATED instead of SEC_IN_MEMORY
to identify generated bits.
(elf_link_input_bfd): Likewise.
* elf64-alpha.c: Rewrite everything touching relocations.
1997-01-03 22:09:40 +00:00
|
|
|
|
};
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
|
|
|
|
/* Do the final step of an ELF link. */
|
|
|
|
|
|
|
|
|
|
boolean
|
|
|
|
|
elf_bfd_final_link (abfd, info)
|
|
|
|
|
bfd *abfd;
|
|
|
|
|
struct bfd_link_info *info;
|
|
|
|
|
{
|
|
|
|
|
boolean dynamic;
|
|
|
|
|
bfd *dynobj;
|
|
|
|
|
struct elf_final_link_info finfo;
|
|
|
|
|
register asection *o;
|
|
|
|
|
register struct bfd_link_order *p;
|
|
|
|
|
register bfd *sub;
|
|
|
|
|
size_t max_contents_size;
|
|
|
|
|
size_t max_external_reloc_size;
|
|
|
|
|
size_t max_internal_reloc_count;
|
|
|
|
|
size_t max_sym_count;
|
|
|
|
|
file_ptr off;
|
|
|
|
|
Elf_Internal_Sym elfsym;
|
|
|
|
|
unsigned int i;
|
|
|
|
|
Elf_Internal_Shdr *symtab_hdr;
|
|
|
|
|
Elf_Internal_Shdr *symstrtab_hdr;
|
|
|
|
|
struct elf_backend_data *bed = get_elf_backend_data (abfd);
|
1997-03-11 06:46:46 +00:00
|
|
|
|
struct elf_outext_info eoinfo;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
|
|
|
|
if (info->shared)
|
|
|
|
|
abfd->flags |= DYNAMIC;
|
|
|
|
|
|
|
|
|
|
dynamic = elf_hash_table (info)->dynamic_sections_created;
|
|
|
|
|
dynobj = elf_hash_table (info)->dynobj;
|
|
|
|
|
|
|
|
|
|
finfo.info = info;
|
|
|
|
|
finfo.output_bfd = abfd;
|
|
|
|
|
finfo.symstrtab = elf_stringtab_init ();
|
|
|
|
|
if (finfo.symstrtab == NULL)
|
|
|
|
|
return false;
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
if (! dynamic)
|
|
|
|
|
{
|
|
|
|
|
finfo.dynsym_sec = NULL;
|
|
|
|
|
finfo.hash_sec = NULL;
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
finfo.symver_sec = NULL;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
finfo.dynsym_sec = bfd_get_section_by_name (dynobj, ".dynsym");
|
|
|
|
|
finfo.hash_sec = bfd_get_section_by_name (dynobj, ".hash");
|
|
|
|
|
BFD_ASSERT (finfo.dynsym_sec != NULL && finfo.hash_sec != NULL);
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
finfo.symver_sec = bfd_get_section_by_name (dynobj, ".gnu.version");
|
|
|
|
|
/* Note that it is OK if symver_sec is NULL. */
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
}
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
finfo.contents = NULL;
|
|
|
|
|
finfo.external_relocs = NULL;
|
|
|
|
|
finfo.internal_relocs = NULL;
|
|
|
|
|
finfo.external_syms = NULL;
|
|
|
|
|
finfo.internal_syms = NULL;
|
|
|
|
|
finfo.indices = NULL;
|
|
|
|
|
finfo.sections = NULL;
|
|
|
|
|
finfo.symbuf = NULL;
|
|
|
|
|
finfo.symbuf_count = 0;
|
|
|
|
|
|
|
|
|
|
/* Count up the number of relocations we will output for each output
|
|
|
|
|
section, so that we know the sizes of the reloc sections. We
|
|
|
|
|
also figure out some maximum sizes. */
|
|
|
|
|
max_contents_size = 0;
|
|
|
|
|
max_external_reloc_size = 0;
|
|
|
|
|
max_internal_reloc_count = 0;
|
|
|
|
|
max_sym_count = 0;
|
|
|
|
|
for (o = abfd->sections; o != (asection *) NULL; o = o->next)
|
|
|
|
|
{
|
|
|
|
|
o->reloc_count = 0;
|
|
|
|
|
|
|
|
|
|
for (p = o->link_order_head; p != NULL; p = p->next)
|
|
|
|
|
{
|
|
|
|
|
if (p->type == bfd_section_reloc_link_order
|
|
|
|
|
|| p->type == bfd_symbol_reloc_link_order)
|
|
|
|
|
++o->reloc_count;
|
|
|
|
|
else if (p->type == bfd_indirect_link_order)
|
|
|
|
|
{
|
|
|
|
|
asection *sec;
|
|
|
|
|
|
|
|
|
|
sec = p->u.indirect.section;
|
|
|
|
|
|
1996-03-27 19:21:19 +00:00
|
|
|
|
/* Mark all sections which are to be included in the
|
|
|
|
|
link. This will normally be every section. We need
|
|
|
|
|
to do this so that we can identify any sections which
|
|
|
|
|
the linker has decided to not include. */
|
1996-03-27 22:23:18 +00:00
|
|
|
|
sec->linker_mark = true;
|
1996-03-27 19:21:19 +00:00
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
if (info->relocateable)
|
|
|
|
|
o->reloc_count += sec->reloc_count;
|
|
|
|
|
|
|
|
|
|
if (sec->_raw_size > max_contents_size)
|
|
|
|
|
max_contents_size = sec->_raw_size;
|
|
|
|
|
if (sec->_cooked_size > max_contents_size)
|
|
|
|
|
max_contents_size = sec->_cooked_size;
|
|
|
|
|
|
|
|
|
|
/* We are interested in just local symbols, not all
|
|
|
|
|
symbols. */
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
if (bfd_get_flavour (sec->owner) == bfd_target_elf_flavour
|
|
|
|
|
&& (sec->owner->flags & DYNAMIC) == 0)
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
{
|
|
|
|
|
size_t sym_count;
|
|
|
|
|
|
|
|
|
|
if (elf_bad_symtab (sec->owner))
|
|
|
|
|
sym_count = (elf_tdata (sec->owner)->symtab_hdr.sh_size
|
|
|
|
|
/ sizeof (Elf_External_Sym));
|
|
|
|
|
else
|
|
|
|
|
sym_count = elf_tdata (sec->owner)->symtab_hdr.sh_info;
|
|
|
|
|
|
|
|
|
|
if (sym_count > max_sym_count)
|
|
|
|
|
max_sym_count = sym_count;
|
|
|
|
|
|
|
|
|
|
if ((sec->flags & SEC_RELOC) != 0)
|
|
|
|
|
{
|
|
|
|
|
size_t ext_size;
|
|
|
|
|
|
|
|
|
|
ext_size = elf_section_data (sec)->rel_hdr.sh_size;
|
|
|
|
|
if (ext_size > max_external_reloc_size)
|
|
|
|
|
max_external_reloc_size = ext_size;
|
|
|
|
|
if (sec->reloc_count > max_internal_reloc_count)
|
|
|
|
|
max_internal_reloc_count = sec->reloc_count;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (o->reloc_count > 0)
|
|
|
|
|
o->flags |= SEC_RELOC;
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* Explicitly clear the SEC_RELOC flag. The linker tends to
|
|
|
|
|
set it (this is probably a bug) and if it is set
|
|
|
|
|
assign_section_numbers will create a reloc section. */
|
|
|
|
|
o->flags &=~ SEC_RELOC;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If the SEC_ALLOC flag is not set, force the section VMA to
|
|
|
|
|
zero. This is done in elf_fake_sections as well, but forcing
|
|
|
|
|
the VMA to 0 here will ensure that relocs against these
|
|
|
|
|
sections are handled correctly. */
|
1996-06-24 22:00:22 +00:00
|
|
|
|
if ((o->flags & SEC_ALLOC) == 0
|
|
|
|
|
&& ! o->user_set_vma)
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
o->vma = 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Figure out the file positions for everything but the symbol table
|
|
|
|
|
and the relocs. We set symcount to force assign_section_numbers
|
|
|
|
|
to create a symbol table. */
|
|
|
|
|
abfd->symcount = info->strip == strip_all ? 0 : 1;
|
|
|
|
|
BFD_ASSERT (! abfd->output_has_begun);
|
|
|
|
|
if (! _bfd_elf_compute_section_file_positions (abfd, info))
|
|
|
|
|
goto error_return;
|
|
|
|
|
|
|
|
|
|
/* That created the reloc sections. Set their sizes, and assign
|
|
|
|
|
them file positions, and allocate some buffers. */
|
|
|
|
|
for (o = abfd->sections; o != NULL; o = o->next)
|
|
|
|
|
{
|
|
|
|
|
if ((o->flags & SEC_RELOC) != 0)
|
|
|
|
|
{
|
|
|
|
|
Elf_Internal_Shdr *rel_hdr;
|
|
|
|
|
register struct elf_link_hash_entry **p, **pend;
|
|
|
|
|
|
|
|
|
|
rel_hdr = &elf_section_data (o)->rel_hdr;
|
|
|
|
|
|
|
|
|
|
rel_hdr->sh_size = rel_hdr->sh_entsize * o->reloc_count;
|
|
|
|
|
|
|
|
|
|
/* The contents field must last into write_object_contents,
|
|
|
|
|
so we allocate it with bfd_alloc rather than malloc. */
|
|
|
|
|
rel_hdr->contents = (PTR) bfd_alloc (abfd, rel_hdr->sh_size);
|
|
|
|
|
if (rel_hdr->contents == NULL && rel_hdr->sh_size != 0)
|
1995-11-29 22:05:37 +00:00
|
|
|
|
goto error_return;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
|
|
|
|
p = ((struct elf_link_hash_entry **)
|
1995-12-01 19:48:10 +00:00
|
|
|
|
bfd_malloc (o->reloc_count
|
|
|
|
|
* sizeof (struct elf_link_hash_entry *)));
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
if (p == NULL && o->reloc_count != 0)
|
1995-12-01 19:48:10 +00:00
|
|
|
|
goto error_return;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
elf_section_data (o)->rel_hashes = p;
|
|
|
|
|
pend = p + o->reloc_count;
|
|
|
|
|
for (; p < pend; p++)
|
|
|
|
|
*p = NULL;
|
|
|
|
|
|
|
|
|
|
/* Use the reloc_count field as an index when outputting the
|
|
|
|
|
relocs. */
|
|
|
|
|
o->reloc_count = 0;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
_bfd_elf_assign_file_positions_for_relocs (abfd);
|
|
|
|
|
|
|
|
|
|
/* We have now assigned file positions for all the sections except
|
|
|
|
|
.symtab and .strtab. We start the .symtab section at the current
|
|
|
|
|
file position, and write directly to it. We build the .strtab
|
1995-11-15 01:14:26 +00:00
|
|
|
|
section in memory. */
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
abfd->symcount = 0;
|
|
|
|
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
|
|
|
|
/* sh_name is set in prep_headers. */
|
|
|
|
|
symtab_hdr->sh_type = SHT_SYMTAB;
|
|
|
|
|
symtab_hdr->sh_flags = 0;
|
|
|
|
|
symtab_hdr->sh_addr = 0;
|
|
|
|
|
symtab_hdr->sh_size = 0;
|
|
|
|
|
symtab_hdr->sh_entsize = sizeof (Elf_External_Sym);
|
|
|
|
|
/* sh_link is set in assign_section_numbers. */
|
|
|
|
|
/* sh_info is set below. */
|
|
|
|
|
/* sh_offset is set just below. */
|
|
|
|
|
symtab_hdr->sh_addralign = 4; /* FIXME: system dependent? */
|
|
|
|
|
|
|
|
|
|
off = elf_tdata (abfd)->next_file_pos;
|
|
|
|
|
off = _bfd_elf_assign_file_position_for_section (symtab_hdr, off, true);
|
|
|
|
|
|
|
|
|
|
/* Note that at this point elf_tdata (abfd)->next_file_pos is
|
|
|
|
|
incorrect. We do not yet know the size of the .symtab section.
|
|
|
|
|
We correct next_file_pos below, after we do know the size. */
|
|
|
|
|
|
|
|
|
|
/* Allocate a buffer to hold swapped out symbols. This is to avoid
|
|
|
|
|
continuously seeking to the right position in the file. */
|
|
|
|
|
if (! info->keep_memory || max_sym_count < 20)
|
|
|
|
|
finfo.symbuf_size = 20;
|
|
|
|
|
else
|
|
|
|
|
finfo.symbuf_size = max_sym_count;
|
|
|
|
|
finfo.symbuf = ((Elf_External_Sym *)
|
1995-12-01 19:48:10 +00:00
|
|
|
|
bfd_malloc (finfo.symbuf_size * sizeof (Elf_External_Sym)));
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
if (finfo.symbuf == NULL)
|
1995-12-01 19:48:10 +00:00
|
|
|
|
goto error_return;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
|
|
|
|
/* Start writing out the symbol table. The first symbol is always a
|
|
|
|
|
dummy symbol. */
|
1996-01-31 21:22:02 +00:00
|
|
|
|
if (info->strip != strip_all || info->relocateable)
|
|
|
|
|
{
|
|
|
|
|
elfsym.st_value = 0;
|
|
|
|
|
elfsym.st_size = 0;
|
|
|
|
|
elfsym.st_info = 0;
|
|
|
|
|
elfsym.st_other = 0;
|
|
|
|
|
elfsym.st_shndx = SHN_UNDEF;
|
|
|
|
|
if (! elf_link_output_sym (&finfo, (const char *) NULL,
|
|
|
|
|
&elfsym, bfd_und_section_ptr))
|
|
|
|
|
goto error_return;
|
|
|
|
|
}
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
|
|
|
|
#if 0
|
|
|
|
|
/* Some standard ELF linkers do this, but we don't because it causes
|
|
|
|
|
bootstrap comparison failures. */
|
|
|
|
|
/* Output a file symbol for the output file as the second symbol.
|
|
|
|
|
We output this even if we are discarding local symbols, although
|
|
|
|
|
I'm not sure if this is correct. */
|
|
|
|
|
elfsym.st_value = 0;
|
|
|
|
|
elfsym.st_size = 0;
|
|
|
|
|
elfsym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FILE);
|
|
|
|
|
elfsym.st_other = 0;
|
|
|
|
|
elfsym.st_shndx = SHN_ABS;
|
|
|
|
|
if (! elf_link_output_sym (&finfo, bfd_get_filename (abfd),
|
|
|
|
|
&elfsym, bfd_abs_section_ptr))
|
|
|
|
|
goto error_return;
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* Output a symbol for each section. We output these even if we are
|
|
|
|
|
discarding local symbols, since they are used for relocs. These
|
|
|
|
|
symbols have no names. We store the index of each one in the
|
|
|
|
|
index field of the section, so that we can find it again when
|
|
|
|
|
outputting relocs. */
|
1996-01-31 21:22:02 +00:00
|
|
|
|
if (info->strip != strip_all || info->relocateable)
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
{
|
1996-01-31 21:22:02 +00:00
|
|
|
|
elfsym.st_size = 0;
|
|
|
|
|
elfsym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION);
|
|
|
|
|
elfsym.st_other = 0;
|
|
|
|
|
for (i = 1; i < elf_elfheader (abfd)->e_shnum; i++)
|
|
|
|
|
{
|
|
|
|
|
o = section_from_elf_index (abfd, i);
|
|
|
|
|
if (o != NULL)
|
|
|
|
|
o->target_index = abfd->symcount;
|
|
|
|
|
elfsym.st_shndx = i;
|
1997-03-20 17:40:06 +00:00
|
|
|
|
if (info->relocateable || o == NULL)
|
|
|
|
|
elfsym.st_value = 0;
|
|
|
|
|
else
|
|
|
|
|
elfsym.st_value = o->vma;
|
1996-01-31 21:22:02 +00:00
|
|
|
|
if (! elf_link_output_sym (&finfo, (const char *) NULL,
|
|
|
|
|
&elfsym, o))
|
|
|
|
|
goto error_return;
|
|
|
|
|
}
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Allocate some memory to hold information read in from the input
|
|
|
|
|
files. */
|
1995-12-01 19:48:10 +00:00
|
|
|
|
finfo.contents = (bfd_byte *) bfd_malloc (max_contents_size);
|
|
|
|
|
finfo.external_relocs = (PTR) bfd_malloc (max_external_reloc_size);
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
finfo.internal_relocs = ((Elf_Internal_Rela *)
|
1995-12-01 19:48:10 +00:00
|
|
|
|
bfd_malloc (max_internal_reloc_count
|
|
|
|
|
* sizeof (Elf_Internal_Rela)));
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
finfo.external_syms = ((Elf_External_Sym *)
|
1995-12-01 19:48:10 +00:00
|
|
|
|
bfd_malloc (max_sym_count
|
|
|
|
|
* sizeof (Elf_External_Sym)));
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
finfo.internal_syms = ((Elf_Internal_Sym *)
|
1995-12-01 19:48:10 +00:00
|
|
|
|
bfd_malloc (max_sym_count
|
|
|
|
|
* sizeof (Elf_Internal_Sym)));
|
|
|
|
|
finfo.indices = (long *) bfd_malloc (max_sym_count * sizeof (long));
|
|
|
|
|
finfo.sections = ((asection **)
|
|
|
|
|
bfd_malloc (max_sym_count * sizeof (asection *)));
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
if ((finfo.contents == NULL && max_contents_size != 0)
|
|
|
|
|
|| (finfo.external_relocs == NULL && max_external_reloc_size != 0)
|
|
|
|
|
|| (finfo.internal_relocs == NULL && max_internal_reloc_count != 0)
|
|
|
|
|
|| (finfo.external_syms == NULL && max_sym_count != 0)
|
|
|
|
|
|| (finfo.internal_syms == NULL && max_sym_count != 0)
|
|
|
|
|
|| (finfo.indices == NULL && max_sym_count != 0)
|
|
|
|
|
|| (finfo.sections == NULL && max_sym_count != 0))
|
1995-12-01 19:48:10 +00:00
|
|
|
|
goto error_return;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
|
|
|
|
/* Since ELF permits relocations to be against local symbols, we
|
|
|
|
|
must have the local symbols available when we do the relocations.
|
|
|
|
|
Since we would rather only read the local symbols once, and we
|
|
|
|
|
would rather not keep them in memory, we handle all the
|
|
|
|
|
relocations for a single input file at the same time.
|
|
|
|
|
|
|
|
|
|
Unfortunately, there is no way to know the total number of local
|
|
|
|
|
symbols until we have seen all of them, and the local symbol
|
|
|
|
|
indices precede the global symbol indices. This means that when
|
|
|
|
|
we are generating relocateable output, and we see a reloc against
|
|
|
|
|
a global symbol, we can not know the symbol index until we have
|
|
|
|
|
finished examining all the local symbols to see which ones we are
|
|
|
|
|
going to output. To deal with this, we keep the relocations in
|
|
|
|
|
memory, and don't output them until the end of the link. This is
|
|
|
|
|
an unfortunate waste of memory, but I don't see a good way around
|
|
|
|
|
it. Fortunately, it only happens when performing a relocateable
|
|
|
|
|
link, which is not the common case. FIXME: If keep_memory is set
|
|
|
|
|
we could write the relocs out and then read them again; I don't
|
|
|
|
|
know how bad the memory loss will be. */
|
|
|
|
|
|
|
|
|
|
for (sub = info->input_bfds; sub != NULL; sub = sub->next)
|
|
|
|
|
sub->output_has_begun = false;
|
|
|
|
|
for (o = abfd->sections; o != NULL; o = o->next)
|
|
|
|
|
{
|
|
|
|
|
for (p = o->link_order_head; p != NULL; p = p->next)
|
|
|
|
|
{
|
|
|
|
|
if (p->type == bfd_indirect_link_order
|
|
|
|
|
&& (bfd_get_flavour (p->u.indirect.section->owner)
|
|
|
|
|
== bfd_target_elf_flavour))
|
|
|
|
|
{
|
|
|
|
|
sub = p->u.indirect.section->owner;
|
|
|
|
|
if (! sub->output_has_begun)
|
|
|
|
|
{
|
|
|
|
|
if (! elf_link_input_bfd (&finfo, sub))
|
|
|
|
|
goto error_return;
|
|
|
|
|
sub->output_has_begun = true;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else if (p->type == bfd_section_reloc_link_order
|
|
|
|
|
|| p->type == bfd_symbol_reloc_link_order)
|
|
|
|
|
{
|
|
|
|
|
if (! elf_reloc_link_order (abfd, info, o, p))
|
|
|
|
|
goto error_return;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
if (! _bfd_default_link_order (abfd, info, o, p))
|
|
|
|
|
goto error_return;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* That wrote out all the local symbols. Finish up the symbol table
|
|
|
|
|
with the global symbols. */
|
|
|
|
|
|
1997-03-11 06:46:46 +00:00
|
|
|
|
if (info->strip != strip_all && info->shared)
|
|
|
|
|
{
|
|
|
|
|
/* Output any global symbols that got converted to local in a
|
|
|
|
|
version script. We do this in a separate step since ELF
|
|
|
|
|
requires all local symbols to appear prior to any global
|
|
|
|
|
symbols. FIXME: We should only do this if some global
|
|
|
|
|
symbols were, in fact, converted to become local. FIXME:
|
|
|
|
|
Will this work correctly with the Irix 5 linker? */
|
|
|
|
|
eoinfo.failed = false;
|
|
|
|
|
eoinfo.finfo = &finfo;
|
|
|
|
|
eoinfo.localsyms = true;
|
|
|
|
|
elf_link_hash_traverse (elf_hash_table (info), elf_link_output_extsym,
|
|
|
|
|
(PTR) &eoinfo);
|
|
|
|
|
if (eoinfo.failed)
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
/* The sh_info field records the index of the first non local
|
|
|
|
|
symbol. */
|
|
|
|
|
symtab_hdr->sh_info = abfd->symcount;
|
|
|
|
|
if (dynamic)
|
|
|
|
|
elf_section_data (finfo.dynsym_sec->output_section)->this_hdr.sh_info = 1;
|
|
|
|
|
|
|
|
|
|
/* We get the global symbols from the hash table. */
|
1997-03-11 06:46:46 +00:00
|
|
|
|
eoinfo.failed = false;
|
|
|
|
|
eoinfo.localsyms = false;
|
|
|
|
|
eoinfo.finfo = &finfo;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
elf_link_hash_traverse (elf_hash_table (info), elf_link_output_extsym,
|
1997-03-11 06:46:46 +00:00
|
|
|
|
(PTR) &eoinfo);
|
|
|
|
|
if (eoinfo.failed)
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
/* Flush all symbols to the file. */
|
|
|
|
|
if (! elf_link_flush_output_syms (&finfo))
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
/* Now we know the size of the symtab section. */
|
|
|
|
|
off += symtab_hdr->sh_size;
|
|
|
|
|
|
|
|
|
|
/* Finish up and write out the symbol string table (.strtab)
|
|
|
|
|
section. */
|
|
|
|
|
symstrtab_hdr = &elf_tdata (abfd)->strtab_hdr;
|
|
|
|
|
/* sh_name was set in prep_headers. */
|
|
|
|
|
symstrtab_hdr->sh_type = SHT_STRTAB;
|
|
|
|
|
symstrtab_hdr->sh_flags = 0;
|
|
|
|
|
symstrtab_hdr->sh_addr = 0;
|
|
|
|
|
symstrtab_hdr->sh_size = _bfd_stringtab_size (finfo.symstrtab);
|
|
|
|
|
symstrtab_hdr->sh_entsize = 0;
|
|
|
|
|
symstrtab_hdr->sh_link = 0;
|
|
|
|
|
symstrtab_hdr->sh_info = 0;
|
|
|
|
|
/* sh_offset is set just below. */
|
|
|
|
|
symstrtab_hdr->sh_addralign = 1;
|
|
|
|
|
|
|
|
|
|
off = _bfd_elf_assign_file_position_for_section (symstrtab_hdr, off, true);
|
|
|
|
|
elf_tdata (abfd)->next_file_pos = off;
|
|
|
|
|
|
1996-01-31 21:22:02 +00:00
|
|
|
|
if (abfd->symcount > 0)
|
|
|
|
|
{
|
|
|
|
|
if (bfd_seek (abfd, symstrtab_hdr->sh_offset, SEEK_SET) != 0
|
|
|
|
|
|| ! _bfd_stringtab_emit (abfd, finfo.symstrtab))
|
|
|
|
|
return false;
|
|
|
|
|
}
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
|
|
|
|
/* Adjust the relocs to have the correct symbol indices. */
|
|
|
|
|
for (o = abfd->sections; o != NULL; o = o->next)
|
|
|
|
|
{
|
|
|
|
|
struct elf_link_hash_entry **rel_hash;
|
|
|
|
|
Elf_Internal_Shdr *rel_hdr;
|
|
|
|
|
|
|
|
|
|
if ((o->flags & SEC_RELOC) == 0)
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
rel_hash = elf_section_data (o)->rel_hashes;
|
|
|
|
|
rel_hdr = &elf_section_data (o)->rel_hdr;
|
|
|
|
|
for (i = 0; i < o->reloc_count; i++, rel_hash++)
|
|
|
|
|
{
|
|
|
|
|
if (*rel_hash == NULL)
|
|
|
|
|
continue;
|
Fri Jan 3 16:58:31 1997 Richard Henderson <rth@tamu.edu>
elf64-alpha multiple .got rewrite:
* elf-bfd.h (struct elf_backend_data): Add always_size_sections entry.
(bfd_elf*_mkobject): Don't define here ...
* elfxx-target.h: ... but rather here. Default always_size_sections
hook to NULL.
* elf.c (elf_mkobject): Rename to bfd_elf_mkobject, since that was
what the #defines in elf-bfd.h transmuted it to anyway.
* section.c: Add SEC_LINKER_CREATED flag.
* bfd-in2.h: Rebuild.
* elf32-i386.c (elf_i386_check_relocs): Add SEC_LINKER_CREATED to
relocation section flags.
(elf_i386_size_dynamic_sections): Use SEC_LINKER_CREATED instead of
SEC_IN_MEMORY to recognize generated bits.
* elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_size_dynamic_sections):
Likewise.
* elf32-mips.c (mips_elf_final_link, mips_elf_create_dynamic_sections,
mips_elf_create_compact_rel_section, mips_elf_create_got_section,
mips_elf_check_relocs, mips_elf_size_dynamic_sections): Likewise.
* elf32-ppc.c (ppc_elf_create_linker_section,
ppc_elf_size_dynamic_sections): Likewise.
* elf32-sparc.c (elf32_sparc_check_relocs,
elf32_sparc_size_dynamic_sections): Likewise.
* elflink.c (_bfd_elf_create_got_section): Add SEC_LINKER_CREATED to
section flags.
(_bfd_elf_create_dynamic_sections): Likewise.
(_bfd_elf_make_linker_section_rela): Likewise.
* elflink.h (elf_link_create_dynamic_sections): Likewise.
(bfd_elf,size_dynamic_sections): Call the always_size_sections hook.
(elf_bfd_final_link): Use SEC_LINKER_CREATED instead of SEC_IN_MEMORY
to identify generated bits.
(elf_link_input_bfd): Likewise.
* elf64-alpha.c: Rewrite everything touching relocations.
1997-01-03 22:09:40 +00:00
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
BFD_ASSERT ((*rel_hash)->indx >= 0);
|
|
|
|
|
|
|
|
|
|
if (rel_hdr->sh_entsize == sizeof (Elf_External_Rel))
|
|
|
|
|
{
|
|
|
|
|
Elf_External_Rel *erel;
|
|
|
|
|
Elf_Internal_Rel irel;
|
|
|
|
|
|
|
|
|
|
erel = (Elf_External_Rel *) rel_hdr->contents + i;
|
|
|
|
|
elf_swap_reloc_in (abfd, erel, &irel);
|
|
|
|
|
irel.r_info = ELF_R_INFO ((*rel_hash)->indx,
|
|
|
|
|
ELF_R_TYPE (irel.r_info));
|
|
|
|
|
elf_swap_reloc_out (abfd, &irel, erel);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
Elf_External_Rela *erela;
|
|
|
|
|
Elf_Internal_Rela irela;
|
|
|
|
|
|
|
|
|
|
BFD_ASSERT (rel_hdr->sh_entsize
|
|
|
|
|
== sizeof (Elf_External_Rela));
|
|
|
|
|
|
|
|
|
|
erela = (Elf_External_Rela *) rel_hdr->contents + i;
|
|
|
|
|
elf_swap_reloca_in (abfd, erela, &irela);
|
|
|
|
|
irela.r_info = ELF_R_INFO ((*rel_hash)->indx,
|
|
|
|
|
ELF_R_TYPE (irela.r_info));
|
|
|
|
|
elf_swap_reloca_out (abfd, &irela, erela);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Set the reloc_count field to 0 to prevent write_relocs from
|
|
|
|
|
trying to swap the relocs out itself. */
|
|
|
|
|
o->reloc_count = 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If we are linking against a dynamic object, or generating a
|
|
|
|
|
shared library, finish up the dynamic linking information. */
|
|
|
|
|
if (dynamic)
|
|
|
|
|
{
|
|
|
|
|
Elf_External_Dyn *dyncon, *dynconend;
|
|
|
|
|
|
|
|
|
|
/* Fix up .dynamic entries. */
|
|
|
|
|
o = bfd_get_section_by_name (dynobj, ".dynamic");
|
|
|
|
|
BFD_ASSERT (o != NULL);
|
|
|
|
|
|
|
|
|
|
dyncon = (Elf_External_Dyn *) o->contents;
|
|
|
|
|
dynconend = (Elf_External_Dyn *) (o->contents + o->_raw_size);
|
|
|
|
|
for (; dyncon < dynconend; dyncon++)
|
|
|
|
|
{
|
|
|
|
|
Elf_Internal_Dyn dyn;
|
|
|
|
|
const char *name;
|
|
|
|
|
unsigned int type;
|
|
|
|
|
|
|
|
|
|
elf_swap_dyn_in (dynobj, dyncon, &dyn);
|
|
|
|
|
|
|
|
|
|
switch (dyn.d_tag)
|
|
|
|
|
{
|
|
|
|
|
default:
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
/* SVR4 linkers seem to set DT_INIT and DT_FINI based on
|
|
|
|
|
magic _init and _fini symbols. This is pretty ugly,
|
|
|
|
|
but we are compatible. */
|
|
|
|
|
case DT_INIT:
|
|
|
|
|
name = "_init";
|
|
|
|
|
goto get_sym;
|
|
|
|
|
case DT_FINI:
|
|
|
|
|
name = "_fini";
|
|
|
|
|
get_sym:
|
|
|
|
|
{
|
|
|
|
|
struct elf_link_hash_entry *h;
|
|
|
|
|
|
|
|
|
|
h = elf_link_hash_lookup (elf_hash_table (info), name,
|
|
|
|
|
false, false, true);
|
1995-09-01 19:29:43 +00:00
|
|
|
|
if (h != NULL
|
|
|
|
|
&& (h->root.type == bfd_link_hash_defined
|
|
|
|
|
|| h->root.type == bfd_link_hash_defweak))
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
{
|
|
|
|
|
dyn.d_un.d_val = h->root.u.def.value;
|
|
|
|
|
o = h->root.u.def.section;
|
|
|
|
|
if (o->output_section != NULL)
|
|
|
|
|
dyn.d_un.d_val += (o->output_section->vma
|
|
|
|
|
+ o->output_offset);
|
|
|
|
|
else
|
1995-09-01 19:29:43 +00:00
|
|
|
|
{
|
|
|
|
|
/* The symbol is imported from another shared
|
|
|
|
|
library and does not apply to this one. */
|
|
|
|
|
dyn.d_un.d_val = 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
elf_swap_dyn_out (dynobj, &dyn, dyncon);
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case DT_HASH:
|
|
|
|
|
name = ".hash";
|
|
|
|
|
goto get_vma;
|
|
|
|
|
case DT_STRTAB:
|
|
|
|
|
name = ".dynstr";
|
|
|
|
|
goto get_vma;
|
|
|
|
|
case DT_SYMTAB:
|
|
|
|
|
name = ".dynsym";
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
goto get_vma;
|
|
|
|
|
case DT_VERDEF:
|
|
|
|
|
name = ".gnu.version_d";
|
|
|
|
|
goto get_vma;
|
|
|
|
|
case DT_VERNEED:
|
|
|
|
|
name = ".gnu.version_r";
|
|
|
|
|
goto get_vma;
|
|
|
|
|
case DT_VERSYM:
|
|
|
|
|
name = ".gnu.version";
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
get_vma:
|
|
|
|
|
o = bfd_get_section_by_name (abfd, name);
|
|
|
|
|
BFD_ASSERT (o != NULL);
|
|
|
|
|
dyn.d_un.d_ptr = o->vma;
|
|
|
|
|
elf_swap_dyn_out (dynobj, &dyn, dyncon);
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case DT_REL:
|
|
|
|
|
case DT_RELA:
|
|
|
|
|
case DT_RELSZ:
|
|
|
|
|
case DT_RELASZ:
|
|
|
|
|
if (dyn.d_tag == DT_REL || dyn.d_tag == DT_RELSZ)
|
|
|
|
|
type = SHT_REL;
|
|
|
|
|
else
|
|
|
|
|
type = SHT_RELA;
|
|
|
|
|
dyn.d_un.d_val = 0;
|
|
|
|
|
for (i = 1; i < elf_elfheader (abfd)->e_shnum; i++)
|
|
|
|
|
{
|
|
|
|
|
Elf_Internal_Shdr *hdr;
|
|
|
|
|
|
|
|
|
|
hdr = elf_elfsections (abfd)[i];
|
|
|
|
|
if (hdr->sh_type == type
|
|
|
|
|
&& (hdr->sh_flags & SHF_ALLOC) != 0)
|
|
|
|
|
{
|
|
|
|
|
if (dyn.d_tag == DT_RELSZ || dyn.d_tag == DT_RELASZ)
|
|
|
|
|
dyn.d_un.d_val += hdr->sh_size;
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
if (dyn.d_un.d_val == 0
|
|
|
|
|
|| hdr->sh_addr < dyn.d_un.d_val)
|
|
|
|
|
dyn.d_un.d_val = hdr->sh_addr;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
elf_swap_dyn_out (dynobj, &dyn, dyncon);
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If we have created any dynamic sections, then output them. */
|
|
|
|
|
if (dynobj != NULL)
|
|
|
|
|
{
|
|
|
|
|
if (! (*bed->elf_backend_finish_dynamic_sections) (abfd, info))
|
|
|
|
|
goto error_return;
|
|
|
|
|
|
|
|
|
|
for (o = dynobj->sections; o != NULL; o = o->next)
|
|
|
|
|
{
|
|
|
|
|
if ((o->flags & SEC_HAS_CONTENTS) == 0
|
|
|
|
|
|| o->_raw_size == 0)
|
|
|
|
|
continue;
|
Fri Jan 3 16:58:31 1997 Richard Henderson <rth@tamu.edu>
elf64-alpha multiple .got rewrite:
* elf-bfd.h (struct elf_backend_data): Add always_size_sections entry.
(bfd_elf*_mkobject): Don't define here ...
* elfxx-target.h: ... but rather here. Default always_size_sections
hook to NULL.
* elf.c (elf_mkobject): Rename to bfd_elf_mkobject, since that was
what the #defines in elf-bfd.h transmuted it to anyway.
* section.c: Add SEC_LINKER_CREATED flag.
* bfd-in2.h: Rebuild.
* elf32-i386.c (elf_i386_check_relocs): Add SEC_LINKER_CREATED to
relocation section flags.
(elf_i386_size_dynamic_sections): Use SEC_LINKER_CREATED instead of
SEC_IN_MEMORY to recognize generated bits.
* elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_size_dynamic_sections):
Likewise.
* elf32-mips.c (mips_elf_final_link, mips_elf_create_dynamic_sections,
mips_elf_create_compact_rel_section, mips_elf_create_got_section,
mips_elf_check_relocs, mips_elf_size_dynamic_sections): Likewise.
* elf32-ppc.c (ppc_elf_create_linker_section,
ppc_elf_size_dynamic_sections): Likewise.
* elf32-sparc.c (elf32_sparc_check_relocs,
elf32_sparc_size_dynamic_sections): Likewise.
* elflink.c (_bfd_elf_create_got_section): Add SEC_LINKER_CREATED to
section flags.
(_bfd_elf_create_dynamic_sections): Likewise.
(_bfd_elf_make_linker_section_rela): Likewise.
* elflink.h (elf_link_create_dynamic_sections): Likewise.
(bfd_elf,size_dynamic_sections): Call the always_size_sections hook.
(elf_bfd_final_link): Use SEC_LINKER_CREATED instead of SEC_IN_MEMORY
to identify generated bits.
(elf_link_input_bfd): Likewise.
* elf64-alpha.c: Rewrite everything touching relocations.
1997-01-03 22:09:40 +00:00
|
|
|
|
if ((o->flags & SEC_LINKER_CREATED) == 0)
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
{
|
|
|
|
|
/* At this point, we are only interested in sections
|
Fri Jan 3 16:58:31 1997 Richard Henderson <rth@tamu.edu>
elf64-alpha multiple .got rewrite:
* elf-bfd.h (struct elf_backend_data): Add always_size_sections entry.
(bfd_elf*_mkobject): Don't define here ...
* elfxx-target.h: ... but rather here. Default always_size_sections
hook to NULL.
* elf.c (elf_mkobject): Rename to bfd_elf_mkobject, since that was
what the #defines in elf-bfd.h transmuted it to anyway.
* section.c: Add SEC_LINKER_CREATED flag.
* bfd-in2.h: Rebuild.
* elf32-i386.c (elf_i386_check_relocs): Add SEC_LINKER_CREATED to
relocation section flags.
(elf_i386_size_dynamic_sections): Use SEC_LINKER_CREATED instead of
SEC_IN_MEMORY to recognize generated bits.
* elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_size_dynamic_sections):
Likewise.
* elf32-mips.c (mips_elf_final_link, mips_elf_create_dynamic_sections,
mips_elf_create_compact_rel_section, mips_elf_create_got_section,
mips_elf_check_relocs, mips_elf_size_dynamic_sections): Likewise.
* elf32-ppc.c (ppc_elf_create_linker_section,
ppc_elf_size_dynamic_sections): Likewise.
* elf32-sparc.c (elf32_sparc_check_relocs,
elf32_sparc_size_dynamic_sections): Likewise.
* elflink.c (_bfd_elf_create_got_section): Add SEC_LINKER_CREATED to
section flags.
(_bfd_elf_create_dynamic_sections): Likewise.
(_bfd_elf_make_linker_section_rela): Likewise.
* elflink.h (elf_link_create_dynamic_sections): Likewise.
(bfd_elf,size_dynamic_sections): Call the always_size_sections hook.
(elf_bfd_final_link): Use SEC_LINKER_CREATED instead of SEC_IN_MEMORY
to identify generated bits.
(elf_link_input_bfd): Likewise.
* elf64-alpha.c: Rewrite everything touching relocations.
1997-01-03 22:09:40 +00:00
|
|
|
|
created by elf_link_create_dynamic_sections. */
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
if ((elf_section_data (o->output_section)->this_hdr.sh_type
|
|
|
|
|
!= SHT_STRTAB)
|
|
|
|
|
|| strcmp (bfd_get_section_name (abfd, o), ".dynstr") != 0)
|
|
|
|
|
{
|
|
|
|
|
if (! bfd_set_section_contents (abfd, o->output_section,
|
|
|
|
|
o->contents, o->output_offset,
|
|
|
|
|
o->_raw_size))
|
|
|
|
|
goto error_return;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
file_ptr off;
|
|
|
|
|
|
|
|
|
|
/* The contents of the .dynstr section are actually in a
|
|
|
|
|
stringtab. */
|
|
|
|
|
off = elf_section_data (o->output_section)->this_hdr.sh_offset;
|
|
|
|
|
if (bfd_seek (abfd, off, SEEK_SET) != 0
|
|
|
|
|
|| ! _bfd_stringtab_emit (abfd,
|
|
|
|
|
elf_hash_table (info)->dynstr))
|
|
|
|
|
goto error_return;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
1996-04-22 22:35:53 +00:00
|
|
|
|
/* If we have optimized stabs strings, output them. */
|
|
|
|
|
if (elf_hash_table (info)->stab_info != NULL)
|
|
|
|
|
{
|
|
|
|
|
if (! _bfd_write_stab_strings (abfd, &elf_hash_table (info)->stab_info))
|
|
|
|
|
goto error_return;
|
|
|
|
|
}
|
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
if (finfo.symstrtab != NULL)
|
|
|
|
|
_bfd_stringtab_free (finfo.symstrtab);
|
|
|
|
|
if (finfo.contents != NULL)
|
|
|
|
|
free (finfo.contents);
|
|
|
|
|
if (finfo.external_relocs != NULL)
|
|
|
|
|
free (finfo.external_relocs);
|
|
|
|
|
if (finfo.internal_relocs != NULL)
|
|
|
|
|
free (finfo.internal_relocs);
|
|
|
|
|
if (finfo.external_syms != NULL)
|
|
|
|
|
free (finfo.external_syms);
|
|
|
|
|
if (finfo.internal_syms != NULL)
|
|
|
|
|
free (finfo.internal_syms);
|
|
|
|
|
if (finfo.indices != NULL)
|
|
|
|
|
free (finfo.indices);
|
|
|
|
|
if (finfo.sections != NULL)
|
|
|
|
|
free (finfo.sections);
|
|
|
|
|
if (finfo.symbuf != NULL)
|
|
|
|
|
free (finfo.symbuf);
|
|
|
|
|
for (o = abfd->sections; o != NULL; o = o->next)
|
|
|
|
|
{
|
|
|
|
|
if ((o->flags & SEC_RELOC) != 0
|
|
|
|
|
&& elf_section_data (o)->rel_hashes != NULL)
|
|
|
|
|
free (elf_section_data (o)->rel_hashes);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
elf_tdata (abfd)->linker = true;
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
|
|
|
|
|
error_return:
|
|
|
|
|
if (finfo.symstrtab != NULL)
|
|
|
|
|
_bfd_stringtab_free (finfo.symstrtab);
|
|
|
|
|
if (finfo.contents != NULL)
|
|
|
|
|
free (finfo.contents);
|
|
|
|
|
if (finfo.external_relocs != NULL)
|
|
|
|
|
free (finfo.external_relocs);
|
|
|
|
|
if (finfo.internal_relocs != NULL)
|
|
|
|
|
free (finfo.internal_relocs);
|
|
|
|
|
if (finfo.external_syms != NULL)
|
|
|
|
|
free (finfo.external_syms);
|
|
|
|
|
if (finfo.internal_syms != NULL)
|
|
|
|
|
free (finfo.internal_syms);
|
|
|
|
|
if (finfo.indices != NULL)
|
|
|
|
|
free (finfo.indices);
|
|
|
|
|
if (finfo.sections != NULL)
|
|
|
|
|
free (finfo.sections);
|
|
|
|
|
if (finfo.symbuf != NULL)
|
|
|
|
|
free (finfo.symbuf);
|
|
|
|
|
for (o = abfd->sections; o != NULL; o = o->next)
|
|
|
|
|
{
|
|
|
|
|
if ((o->flags & SEC_RELOC) != 0
|
|
|
|
|
&& elf_section_data (o)->rel_hashes != NULL)
|
|
|
|
|
free (elf_section_data (o)->rel_hashes);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Add a symbol to the output symbol table. */
|
|
|
|
|
|
|
|
|
|
static boolean
|
|
|
|
|
elf_link_output_sym (finfo, name, elfsym, input_sec)
|
|
|
|
|
struct elf_final_link_info *finfo;
|
|
|
|
|
const char *name;
|
|
|
|
|
Elf_Internal_Sym *elfsym;
|
|
|
|
|
asection *input_sec;
|
|
|
|
|
{
|
|
|
|
|
boolean (*output_symbol_hook) PARAMS ((bfd *,
|
|
|
|
|
struct bfd_link_info *info,
|
|
|
|
|
const char *,
|
|
|
|
|
Elf_Internal_Sym *,
|
|
|
|
|
asection *));
|
|
|
|
|
|
|
|
|
|
output_symbol_hook = get_elf_backend_data (finfo->output_bfd)->
|
|
|
|
|
elf_backend_link_output_symbol_hook;
|
|
|
|
|
if (output_symbol_hook != NULL)
|
|
|
|
|
{
|
|
|
|
|
if (! ((*output_symbol_hook)
|
|
|
|
|
(finfo->output_bfd, finfo->info, name, elfsym, input_sec)))
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (name == (const char *) NULL || *name == '\0')
|
|
|
|
|
elfsym->st_name = 0;
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
elfsym->st_name = (unsigned long) _bfd_stringtab_add (finfo->symstrtab,
|
|
|
|
|
name, true,
|
|
|
|
|
false);
|
|
|
|
|
if (elfsym->st_name == (unsigned long) -1)
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (finfo->symbuf_count >= finfo->symbuf_size)
|
|
|
|
|
{
|
|
|
|
|
if (! elf_link_flush_output_syms (finfo))
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
elf_swap_symbol_out (finfo->output_bfd, elfsym,
|
1995-07-11 19:24:46 +00:00
|
|
|
|
(PTR) (finfo->symbuf + finfo->symbuf_count));
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
++finfo->symbuf_count;
|
|
|
|
|
|
|
|
|
|
++finfo->output_bfd->symcount;
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Flush the output symbols to the file. */
|
|
|
|
|
|
|
|
|
|
static boolean
|
|
|
|
|
elf_link_flush_output_syms (finfo)
|
|
|
|
|
struct elf_final_link_info *finfo;
|
|
|
|
|
{
|
1996-01-31 21:22:02 +00:00
|
|
|
|
if (finfo->symbuf_count > 0)
|
|
|
|
|
{
|
|
|
|
|
Elf_Internal_Shdr *symtab;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
1996-01-31 21:22:02 +00:00
|
|
|
|
symtab = &elf_tdata (finfo->output_bfd)->symtab_hdr;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
1996-01-31 21:22:02 +00:00
|
|
|
|
if (bfd_seek (finfo->output_bfd, symtab->sh_offset + symtab->sh_size,
|
|
|
|
|
SEEK_SET) != 0
|
|
|
|
|
|| (bfd_write ((PTR) finfo->symbuf, finfo->symbuf_count,
|
|
|
|
|
sizeof (Elf_External_Sym), finfo->output_bfd)
|
|
|
|
|
!= finfo->symbuf_count * sizeof (Elf_External_Sym)))
|
|
|
|
|
return false;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
1996-01-31 21:22:02 +00:00
|
|
|
|
symtab->sh_size += finfo->symbuf_count * sizeof (Elf_External_Sym);
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
1996-01-31 21:22:02 +00:00
|
|
|
|
finfo->symbuf_count = 0;
|
|
|
|
|
}
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Add an external symbol to the symbol table. This is called from
|
1997-03-11 06:46:46 +00:00
|
|
|
|
the hash table traversal routine. When generating a shared object,
|
|
|
|
|
we go through the symbol table twice. The first time we output
|
|
|
|
|
anything that might have been forced to local scope in a version
|
|
|
|
|
script. The second time we output the symbols that are still
|
|
|
|
|
global symbols. */
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
|
|
|
|
static boolean
|
|
|
|
|
elf_link_output_extsym (h, data)
|
|
|
|
|
struct elf_link_hash_entry *h;
|
|
|
|
|
PTR data;
|
|
|
|
|
{
|
1997-03-11 06:46:46 +00:00
|
|
|
|
struct elf_outext_info *eoinfo = (struct elf_outext_info *) data;
|
|
|
|
|
struct elf_final_link_info *finfo = eoinfo->finfo;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
boolean strip;
|
|
|
|
|
Elf_Internal_Sym sym;
|
|
|
|
|
asection *input_sec;
|
|
|
|
|
|
1997-03-11 06:46:46 +00:00
|
|
|
|
/* Decide whether to output this symbol in this pass. */
|
|
|
|
|
if (eoinfo->localsyms)
|
|
|
|
|
{
|
|
|
|
|
if ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
if ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
/* If we are not creating a shared library, and this symbol is
|
|
|
|
|
referenced by a shared library but is not defined anywhere, then
|
|
|
|
|
warn that it is undefined. If we do not do this, the runtime
|
|
|
|
|
linker will complain that the symbol is undefined when the
|
|
|
|
|
program is run. We don't have to worry about symbols that are
|
|
|
|
|
referenced by regular files, because we will already have issued
|
1996-01-15 20:25:53 +00:00
|
|
|
|
warnings for them. */
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
if (! finfo->info->relocateable
|
|
|
|
|
&& ! finfo->info->shared
|
|
|
|
|
&& h->root.type == bfd_link_hash_undefined
|
|
|
|
|
&& (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) != 0
|
1996-01-15 20:25:53 +00:00
|
|
|
|
&& (h->elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR) == 0)
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
{
|
|
|
|
|
if (! ((*finfo->info->callbacks->undefined_symbol)
|
|
|
|
|
(finfo->info, h->root.root.string, h->root.u.undef.abfd,
|
|
|
|
|
(asection *) NULL, 0)))
|
|
|
|
|
{
|
1997-03-11 06:46:46 +00:00
|
|
|
|
eoinfo->failed = true;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* We don't want to output symbols that have never been mentioned by
|
|
|
|
|
a regular file, or that we have been told to strip. However, if
|
|
|
|
|
h->indx is set to -2, the symbol is used by a reloc and we must
|
|
|
|
|
output it. */
|
|
|
|
|
if (h->indx == -2)
|
|
|
|
|
strip = false;
|
|
|
|
|
else if (((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
|
|
|
|
|
|| (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) != 0)
|
|
|
|
|
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0
|
|
|
|
|
&& (h->elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR) == 0)
|
|
|
|
|
strip = true;
|
|
|
|
|
else if (finfo->info->strip == strip_all
|
|
|
|
|
|| (finfo->info->strip == strip_some
|
|
|
|
|
&& bfd_hash_lookup (finfo->info->keep_hash,
|
|
|
|
|
h->root.root.string,
|
|
|
|
|
false, false) == NULL))
|
|
|
|
|
strip = true;
|
|
|
|
|
else
|
|
|
|
|
strip = false;
|
|
|
|
|
|
|
|
|
|
/* If we're stripping it, and it's not a dynamic symbol, there's
|
|
|
|
|
nothing else to do. */
|
|
|
|
|
if (strip && h->dynindx == -1)
|
|
|
|
|
return true;
|
|
|
|
|
|
|
|
|
|
sym.st_value = 0;
|
|
|
|
|
sym.st_size = h->size;
|
1996-11-26 16:43:03 +00:00
|
|
|
|
sym.st_other = h->other;
|
1997-03-11 06:46:46 +00:00
|
|
|
|
if ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)
|
|
|
|
|
sym.st_info = ELF_ST_INFO (STB_LOCAL, h->type);
|
|
|
|
|
else if (h->root.type == bfd_link_hash_undefweak
|
|
|
|
|
|| h->root.type == bfd_link_hash_defweak)
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
sym.st_info = ELF_ST_INFO (STB_WEAK, h->type);
|
|
|
|
|
else
|
|
|
|
|
sym.st_info = ELF_ST_INFO (STB_GLOBAL, h->type);
|
|
|
|
|
|
|
|
|
|
switch (h->root.type)
|
|
|
|
|
{
|
|
|
|
|
default:
|
|
|
|
|
case bfd_link_hash_new:
|
|
|
|
|
abort ();
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
case bfd_link_hash_undefined:
|
|
|
|
|
input_sec = bfd_und_section_ptr;
|
|
|
|
|
sym.st_shndx = SHN_UNDEF;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case bfd_link_hash_undefweak:
|
|
|
|
|
input_sec = bfd_und_section_ptr;
|
|
|
|
|
sym.st_shndx = SHN_UNDEF;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case bfd_link_hash_defined:
|
|
|
|
|
case bfd_link_hash_defweak:
|
|
|
|
|
{
|
|
|
|
|
input_sec = h->root.u.def.section;
|
|
|
|
|
if (input_sec->output_section != NULL)
|
|
|
|
|
{
|
|
|
|
|
sym.st_shndx =
|
|
|
|
|
_bfd_elf_section_from_bfd_section (finfo->output_bfd,
|
|
|
|
|
input_sec->output_section);
|
|
|
|
|
if (sym.st_shndx == (unsigned short) -1)
|
|
|
|
|
{
|
1997-03-11 06:46:46 +00:00
|
|
|
|
eoinfo->failed = true;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* ELF symbols in relocateable files are section relative,
|
|
|
|
|
but in nonrelocateable files they are virtual
|
|
|
|
|
addresses. */
|
|
|
|
|
sym.st_value = h->root.u.def.value + input_sec->output_offset;
|
|
|
|
|
if (! finfo->info->relocateable)
|
|
|
|
|
sym.st_value += input_sec->output_section->vma;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
1997-03-13 02:41:44 +00:00
|
|
|
|
BFD_ASSERT (input_sec->owner == NULL
|
|
|
|
|
|| (input_sec->owner->flags & DYNAMIC) != 0);
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
sym.st_shndx = SHN_UNDEF;
|
|
|
|
|
input_sec = bfd_und_section_ptr;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case bfd_link_hash_common:
|
1997-06-26 05:27:56 +00:00
|
|
|
|
input_sec = h->root.u.c.p->section;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
sym.st_shndx = SHN_COMMON;
|
|
|
|
|
sym.st_value = 1 << h->root.u.c.p->alignment_power;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case bfd_link_hash_indirect:
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
/* These symbols are created by symbol versioning. They point
|
|
|
|
|
to the decorated version of the name. For example, if the
|
|
|
|
|
symbol foo@@GNU_1.2 is the default, which should be used when
|
|
|
|
|
foo is used with no version, then we add an indirect symbol
|
1997-03-10 04:43:42 +00:00
|
|
|
|
foo which points to foo@@GNU_1.2. We ignore these symbols,
|
|
|
|
|
since the indirected symbol is already in the hash table. If
|
|
|
|
|
the indirect symbol is non-ELF, fall through and output it. */
|
|
|
|
|
if ((h->elf_link_hash_flags & ELF_LINK_NON_ELF) == 0)
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
return true;
|
|
|
|
|
|
|
|
|
|
/* Fall through. */
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
case bfd_link_hash_warning:
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
/* We can't represent these symbols in ELF, although a warning
|
|
|
|
|
symbol may have come from a .gnu.warning.SYMBOL section. We
|
1995-12-04 16:23:36 +00:00
|
|
|
|
just put the target symbol in the hash table. If the target
|
|
|
|
|
symbol does not really exist, don't do anything. */
|
|
|
|
|
if (h->root.u.i.link->type == bfd_link_hash_new)
|
|
|
|
|
return true;
|
1995-09-01 18:08:28 +00:00
|
|
|
|
return (elf_link_output_extsym
|
|
|
|
|
((struct elf_link_hash_entry *) h->root.u.i.link, data));
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
}
|
|
|
|
|
|
1997-06-11 16:59:00 +00:00
|
|
|
|
/* Give the processor backend a chance to tweak the symbol value,
|
|
|
|
|
and also to finish up anything that needs to be done for this
|
|
|
|
|
symbol. */
|
|
|
|
|
if ((h->dynindx != -1
|
|
|
|
|
|| (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)
|
|
|
|
|
&& elf_hash_table (finfo->info)->dynamic_sections_created)
|
|
|
|
|
{
|
|
|
|
|
struct elf_backend_data *bed;
|
|
|
|
|
|
|
|
|
|
bed = get_elf_backend_data (finfo->output_bfd);
|
|
|
|
|
if (! ((*bed->elf_backend_finish_dynamic_symbol)
|
|
|
|
|
(finfo->output_bfd, finfo->info, h, &sym)))
|
|
|
|
|
{
|
|
|
|
|
eoinfo->failed = true;
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
/* If this symbol should be put in the .dynsym section, then put it
|
|
|
|
|
there now. We have already know the symbol index. We also fill
|
|
|
|
|
in the entry in the .hash section. */
|
|
|
|
|
if (h->dynindx != -1
|
|
|
|
|
&& elf_hash_table (finfo->info)->dynamic_sections_created)
|
|
|
|
|
{
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
char *p, *copy;
|
|
|
|
|
const char *name;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
size_t bucketcount;
|
|
|
|
|
size_t bucket;
|
|
|
|
|
bfd_byte *bucketpos;
|
|
|
|
|
bfd_vma chain;
|
|
|
|
|
|
|
|
|
|
sym.st_name = h->dynstr_index;
|
|
|
|
|
|
|
|
|
|
elf_swap_symbol_out (finfo->output_bfd, &sym,
|
1995-07-11 19:24:46 +00:00
|
|
|
|
(PTR) (((Elf_External_Sym *)
|
|
|
|
|
finfo->dynsym_sec->contents)
|
|
|
|
|
+ h->dynindx));
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
/* We didn't include the version string in the dynamic string
|
|
|
|
|
table, so we must not consider it in the hash table. */
|
|
|
|
|
name = h->root.root.string;
|
|
|
|
|
p = strchr (name, ELF_VER_CHR);
|
|
|
|
|
if (p == NULL)
|
|
|
|
|
copy = NULL;
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
copy = bfd_alloc (finfo->output_bfd, p - name + 1);
|
|
|
|
|
strncpy (copy, name, p - name);
|
|
|
|
|
copy[p - name] = '\0';
|
|
|
|
|
name = copy;
|
|
|
|
|
}
|
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
bucketcount = elf_hash_table (finfo->info)->bucketcount;
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
bucket = bfd_elf_hash ((const unsigned char *) name) % bucketcount;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
bucketpos = ((bfd_byte *) finfo->hash_sec->contents
|
|
|
|
|
+ (bucket + 2) * (ARCH_SIZE / 8));
|
|
|
|
|
chain = get_word (finfo->output_bfd, bucketpos);
|
|
|
|
|
put_word (finfo->output_bfd, h->dynindx, bucketpos);
|
|
|
|
|
put_word (finfo->output_bfd, chain,
|
|
|
|
|
((bfd_byte *) finfo->hash_sec->contents
|
|
|
|
|
+ (bucketcount + 2 + h->dynindx) * (ARCH_SIZE / 8)));
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
|
|
|
|
|
if (copy != NULL)
|
|
|
|
|
bfd_release (finfo->output_bfd, copy);
|
|
|
|
|
|
|
|
|
|
if (finfo->symver_sec != NULL && finfo->symver_sec->contents != NULL)
|
|
|
|
|
{
|
|
|
|
|
Elf_Internal_Versym iversym;
|
|
|
|
|
|
|
|
|
|
if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
|
|
|
|
|
{
|
|
|
|
|
if (h->verinfo.verdef == NULL)
|
|
|
|
|
iversym.vs_vers = 0;
|
|
|
|
|
else
|
|
|
|
|
iversym.vs_vers = h->verinfo.verdef->vd_exp_refno + 1;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
if (h->verinfo.vertree == NULL)
|
|
|
|
|
iversym.vs_vers = 1;
|
|
|
|
|
else
|
|
|
|
|
iversym.vs_vers = h->verinfo.vertree->vernum + 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if ((h->elf_link_hash_flags & ELF_LINK_HIDDEN) != 0)
|
|
|
|
|
iversym.vs_vers |= VERSYM_HIDDEN;
|
|
|
|
|
|
|
|
|
|
_bfd_elf_swap_versym_out (finfo->output_bfd, &iversym,
|
|
|
|
|
(((Elf_External_Versym *)
|
|
|
|
|
finfo->symver_sec->contents)
|
|
|
|
|
+ h->dynindx));
|
|
|
|
|
}
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If we're stripping it, then it was just a dynamic symbol, and
|
|
|
|
|
there's nothing else to do. */
|
|
|
|
|
if (strip)
|
|
|
|
|
return true;
|
|
|
|
|
|
|
|
|
|
h->indx = finfo->output_bfd->symcount;
|
|
|
|
|
|
|
|
|
|
if (! elf_link_output_sym (finfo, h->root.root.string, &sym, input_sec))
|
|
|
|
|
{
|
1997-03-11 06:46:46 +00:00
|
|
|
|
eoinfo->failed = true;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Link an input file into the linker output file. This function
|
|
|
|
|
handles all the sections and relocations of the input file at once.
|
|
|
|
|
This is so that we only have to read the local symbols once, and
|
|
|
|
|
don't have to keep them in memory. */
|
|
|
|
|
|
|
|
|
|
static boolean
|
|
|
|
|
elf_link_input_bfd (finfo, input_bfd)
|
|
|
|
|
struct elf_final_link_info *finfo;
|
|
|
|
|
bfd *input_bfd;
|
|
|
|
|
{
|
|
|
|
|
boolean (*relocate_section) PARAMS ((bfd *, struct bfd_link_info *,
|
|
|
|
|
bfd *, asection *, bfd_byte *,
|
|
|
|
|
Elf_Internal_Rela *,
|
|
|
|
|
Elf_Internal_Sym *, asection **));
|
|
|
|
|
bfd *output_bfd;
|
|
|
|
|
Elf_Internal_Shdr *symtab_hdr;
|
|
|
|
|
size_t locsymcount;
|
|
|
|
|
size_t extsymoff;
|
1996-08-30 22:09:51 +00:00
|
|
|
|
Elf_External_Sym *external_syms;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
Elf_External_Sym *esym;
|
|
|
|
|
Elf_External_Sym *esymend;
|
|
|
|
|
Elf_Internal_Sym *isym;
|
|
|
|
|
long *pindex;
|
|
|
|
|
asection **ppsection;
|
|
|
|
|
asection *o;
|
|
|
|
|
|
|
|
|
|
output_bfd = finfo->output_bfd;
|
|
|
|
|
relocate_section =
|
|
|
|
|
get_elf_backend_data (output_bfd)->elf_backend_relocate_section;
|
|
|
|
|
|
|
|
|
|
/* If this is a dynamic object, we don't want to do anything here:
|
|
|
|
|
we don't want the local symbols, and we don't want the section
|
|
|
|
|
contents. */
|
From Eric Youngdale <eric@andante.jic.com>:
* elflink.h (elf_link_add_archive_symbols): If a default symbol is
not found, try looking it up again without the version name.
(elf_link_add_object_symbols): Always link against the dynamic
symbol table of a dynamic object. When linking against a dynamic
object, include version strings in symbol names, and set up
version information. Add indirect symbols for default versions.
(elf_link_create_dynamic_sections): Add special version sections.
(struct elf_assign_sym_version_info): Define.
(struct elf_find_verdep_info): Define.
(NAME(bfd_elf,size_dynamic_sections)): Add verdefs parameter. Set
up version sections.
(elf_adjust_dynamic_symbol): Ignore indirect symbols.
(elf_link_find_version_dependencies): New static function.
(elf_link_assign_sym_version): New static function.
(elf_link_renumber_dynsyms): New static function.
(struct elf_final_link_info): Add symver_sec field.
(elf_bfd_final_link): Initialize finfo.symver_sec. Don't count
local symbols of a dynamic object. Handle DT_VER* constants.
(elf_link_output_extsym): Simplify BFD_ASSERT checking for a
dynamic object. Skip indirect symbols from ELF objects. Remove
the version name before choosing a hash bucket. Write out the
version information if appropriate.
(elf_link_input_bfd): Check for DYNAMIC, not ET_DYN.
* bfd-in.h (bfd_elf32_size_dynamic_sections): Update declaration.
(bfd_elf64_size_dynamic_sections): Likewise.
* bfd-in2.h: Rebuild.
* elf-bfd.h (struct elf_link_hash_entry): Add verinfo field.
Change elf_link_hash_flags to unsigned short.
(ELF_LINK_HIDDEN): Define.
(struct elf_obj_tdata): Add fields dynversym_hdr, dynverref_hdr,
dynverdef_hdr, dynversym_section, dynverdef_section,
dynverref_section, cverdefs, cverrefs, verdef, verref.
(elf_dynversym, elf_dynverdef, elf_dynverref): Define.
(_bfd_elf_swap_verdef_in, _bfd_elf_swap_verdef_out): Declare.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Declare.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Declare.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Declare.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Declare.
(_bfd_elf_slurp_version_tables): Declare.
* elf.c (_bfd_elf_swap_verdef_in): New function.
(_bfd_elf_swap_verdef_out): Likewise.
(_bfd_elf_swap_verdaux_in, _bfd_elf_swap_verdaux_out): Likewise.
(_bfd_elf_swap_verneed_in, _bfd_elf_swap_verneed_out): Likewise.
(_bfd_elf_swap_vernaux_in, _bfd_elf_swap_vernaux_out): Likewise.
(_bfd_elf_swap_versym_in, _bfd_elf_swap_versym_out): Likewise.
(_bfd_elf_print_private_bfd_data): Add DT_VER* constants. Print
version information if there is any.
(_bfd_elf_link_hash_newfunc): Initialize verinfo field.
(bfd_section_from_shdr): Handle SHT_GNU_ver* section types.
(elf_fake_sections): Handle .gnu.version* section names.
(assign_section_numbers): Handle SHT_GNU_ver* section types.
(_bfd_elf_slurp_version_tables): New function.
* elflink.c (_bfd_elf_link_record_dynamic_symbol): Don't include
version name in string entered in dynamic hash table.
* elfcode.h: Include fnmatch.h.
* elf32-i386.c (elf_i386_relocate_section): Handle a dynamic
symbol which was forced to become local.
* elf32-m68k.c (elf_m68k_relocate_section): Likewise.
* elf32-ppc.c (ppc_elf_relocate_section): Likewise.
* elf32-sparc.c (elf32_sparc_relocate_section): Likewise.
* elf64-alpha.c (alpha_elf_dynamic_symbol_p): Likewise.
1997-02-24 23:13:07 +00:00
|
|
|
|
if ((input_bfd->flags & DYNAMIC) != 0)
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
return true;
|
|
|
|
|
|
|
|
|
|
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
|
|
|
|
|
if (elf_bad_symtab (input_bfd))
|
|
|
|
|
{
|
|
|
|
|
locsymcount = symtab_hdr->sh_size / sizeof (Elf_External_Sym);
|
|
|
|
|
extsymoff = 0;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
locsymcount = symtab_hdr->sh_info;
|
|
|
|
|
extsymoff = symtab_hdr->sh_info;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Read the local symbols. */
|
1996-08-30 22:09:51 +00:00
|
|
|
|
if (symtab_hdr->contents != NULL)
|
|
|
|
|
external_syms = (Elf_External_Sym *) symtab_hdr->contents;
|
|
|
|
|
else if (locsymcount == 0)
|
|
|
|
|
external_syms = NULL;
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
external_syms = finfo->external_syms;
|
|
|
|
|
if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0
|
|
|
|
|
|| (bfd_read (external_syms, sizeof (Elf_External_Sym),
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
locsymcount, input_bfd)
|
1996-08-30 22:09:51 +00:00
|
|
|
|
!= locsymcount * sizeof (Elf_External_Sym)))
|
|
|
|
|
return false;
|
|
|
|
|
}
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
|
|
|
|
/* Swap in the local symbols and write out the ones which we know
|
|
|
|
|
are going into the output file. */
|
1996-08-30 22:09:51 +00:00
|
|
|
|
esym = external_syms;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
esymend = esym + locsymcount;
|
|
|
|
|
isym = finfo->internal_syms;
|
|
|
|
|
pindex = finfo->indices;
|
|
|
|
|
ppsection = finfo->sections;
|
|
|
|
|
for (; esym < esymend; esym++, isym++, pindex++, ppsection++)
|
|
|
|
|
{
|
|
|
|
|
asection *isec;
|
|
|
|
|
const char *name;
|
|
|
|
|
Elf_Internal_Sym osym;
|
|
|
|
|
|
|
|
|
|
elf_swap_symbol_in (input_bfd, esym, isym);
|
|
|
|
|
*pindex = -1;
|
|
|
|
|
|
|
|
|
|
if (elf_bad_symtab (input_bfd))
|
|
|
|
|
{
|
|
|
|
|
if (ELF_ST_BIND (isym->st_info) != STB_LOCAL)
|
|
|
|
|
{
|
|
|
|
|
*ppsection = NULL;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (isym->st_shndx == SHN_UNDEF)
|
|
|
|
|
isec = bfd_und_section_ptr;
|
|
|
|
|
else if (isym->st_shndx > 0 && isym->st_shndx < SHN_LORESERVE)
|
|
|
|
|
isec = section_from_elf_index (input_bfd, isym->st_shndx);
|
|
|
|
|
else if (isym->st_shndx == SHN_ABS)
|
|
|
|
|
isec = bfd_abs_section_ptr;
|
|
|
|
|
else if (isym->st_shndx == SHN_COMMON)
|
|
|
|
|
isec = bfd_com_section_ptr;
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* Who knows? */
|
|
|
|
|
isec = NULL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
*ppsection = isec;
|
|
|
|
|
|
|
|
|
|
/* Don't output the first, undefined, symbol. */
|
1996-08-30 22:09:51 +00:00
|
|
|
|
if (esym == external_syms)
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
/* If we are stripping all symbols, we don't want to output this
|
|
|
|
|
one. */
|
|
|
|
|
if (finfo->info->strip == strip_all)
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
/* We never output section symbols. Instead, we use the section
|
|
|
|
|
symbol of the corresponding section in the output file. */
|
|
|
|
|
if (ELF_ST_TYPE (isym->st_info) == STT_SECTION)
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
/* If we are discarding all local symbols, we don't want to
|
|
|
|
|
output this one. If we are generating a relocateable output
|
|
|
|
|
file, then some of the local symbols may be required by
|
|
|
|
|
relocs; we output them below as we discover that they are
|
|
|
|
|
needed. */
|
|
|
|
|
if (finfo->info->discard == discard_all)
|
|
|
|
|
continue;
|
|
|
|
|
|
1997-02-06 22:02:51 +00:00
|
|
|
|
/* If this symbol is defined in a section which we are
|
1997-02-26 18:35:56 +00:00
|
|
|
|
discarding, we don't need to keep it, but note that
|
|
|
|
|
linker_mark is only reliable for sections that have contents.
|
|
|
|
|
For the benefit of the MIPS ELF linker, we check SEC_EXCLUDE
|
|
|
|
|
as well as linker_mark. */
|
1997-02-06 22:02:51 +00:00
|
|
|
|
if (isym->st_shndx > 0
|
|
|
|
|
&& isym->st_shndx < SHN_LORESERVE
|
|
|
|
|
&& isec != NULL
|
1997-02-26 18:35:56 +00:00
|
|
|
|
&& ((! isec->linker_mark && (isec->flags & SEC_HAS_CONTENTS) != 0)
|
1997-02-06 22:02:51 +00:00
|
|
|
|
|| (! finfo->info->relocateable
|
|
|
|
|
&& (isec->flags & SEC_EXCLUDE) != 0)))
|
|
|
|
|
continue;
|
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
/* Get the name of the symbol. */
|
|
|
|
|
name = bfd_elf_string_from_elf_section (input_bfd, symtab_hdr->sh_link,
|
1997-02-06 22:02:51 +00:00
|
|
|
|
isym->st_name);
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
if (name == NULL)
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
/* See if we are discarding symbols with this name. */
|
|
|
|
|
if ((finfo->info->strip == strip_some
|
|
|
|
|
&& (bfd_hash_lookup (finfo->info->keep_hash, name, false, false)
|
|
|
|
|
== NULL))
|
|
|
|
|
|| (finfo->info->discard == discard_l
|
1997-02-28 04:12:07 +00:00
|
|
|
|
&& bfd_is_local_label_name (input_bfd, name)))
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
/* If we get here, we are going to output this symbol. */
|
|
|
|
|
|
|
|
|
|
osym = *isym;
|
|
|
|
|
|
|
|
|
|
/* Adjust the section index for the output file. */
|
|
|
|
|
osym.st_shndx = _bfd_elf_section_from_bfd_section (output_bfd,
|
|
|
|
|
isec->output_section);
|
|
|
|
|
if (osym.st_shndx == (unsigned short) -1)
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
*pindex = output_bfd->symcount;
|
|
|
|
|
|
|
|
|
|
/* ELF symbols in relocateable files are section relative, but
|
|
|
|
|
in executable files they are virtual addresses. Note that
|
|
|
|
|
this code assumes that all ELF sections have an associated
|
|
|
|
|
BFD section with a reasonable value for output_offset; below
|
|
|
|
|
we assume that they also have a reasonable value for
|
|
|
|
|
output_section. Any special sections must be set up to meet
|
|
|
|
|
these requirements. */
|
|
|
|
|
osym.st_value += isec->output_offset;
|
|
|
|
|
if (! finfo->info->relocateable)
|
|
|
|
|
osym.st_value += isec->output_section->vma;
|
|
|
|
|
|
|
|
|
|
if (! elf_link_output_sym (finfo, name, &osym, isec))
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Relocate the contents of each section. */
|
|
|
|
|
for (o = input_bfd->sections; o != NULL; o = o->next)
|
|
|
|
|
{
|
1996-08-30 22:09:51 +00:00
|
|
|
|
bfd_byte *contents;
|
|
|
|
|
|
1996-03-27 22:23:18 +00:00
|
|
|
|
if (! o->linker_mark)
|
1996-03-27 19:21:19 +00:00
|
|
|
|
{
|
|
|
|
|
/* This section was omitted from the link. */
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
|
1996-04-22 22:35:53 +00:00
|
|
|
|
if ((o->flags & SEC_HAS_CONTENTS) == 0
|
|
|
|
|
|| (o->_raw_size == 0 && (o->flags & SEC_RELOC) == 0))
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
continue;
|
|
|
|
|
|
Fri Jan 3 16:58:31 1997 Richard Henderson <rth@tamu.edu>
elf64-alpha multiple .got rewrite:
* elf-bfd.h (struct elf_backend_data): Add always_size_sections entry.
(bfd_elf*_mkobject): Don't define here ...
* elfxx-target.h: ... but rather here. Default always_size_sections
hook to NULL.
* elf.c (elf_mkobject): Rename to bfd_elf_mkobject, since that was
what the #defines in elf-bfd.h transmuted it to anyway.
* section.c: Add SEC_LINKER_CREATED flag.
* bfd-in2.h: Rebuild.
* elf32-i386.c (elf_i386_check_relocs): Add SEC_LINKER_CREATED to
relocation section flags.
(elf_i386_size_dynamic_sections): Use SEC_LINKER_CREATED instead of
SEC_IN_MEMORY to recognize generated bits.
* elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_size_dynamic_sections):
Likewise.
* elf32-mips.c (mips_elf_final_link, mips_elf_create_dynamic_sections,
mips_elf_create_compact_rel_section, mips_elf_create_got_section,
mips_elf_check_relocs, mips_elf_size_dynamic_sections): Likewise.
* elf32-ppc.c (ppc_elf_create_linker_section,
ppc_elf_size_dynamic_sections): Likewise.
* elf32-sparc.c (elf32_sparc_check_relocs,
elf32_sparc_size_dynamic_sections): Likewise.
* elflink.c (_bfd_elf_create_got_section): Add SEC_LINKER_CREATED to
section flags.
(_bfd_elf_create_dynamic_sections): Likewise.
(_bfd_elf_make_linker_section_rela): Likewise.
* elflink.h (elf_link_create_dynamic_sections): Likewise.
(bfd_elf,size_dynamic_sections): Call the always_size_sections hook.
(elf_bfd_final_link): Use SEC_LINKER_CREATED instead of SEC_IN_MEMORY
to identify generated bits.
(elf_link_input_bfd): Likewise.
* elf64-alpha.c: Rewrite everything touching relocations.
1997-01-03 22:09:40 +00:00
|
|
|
|
if ((o->flags & SEC_LINKER_CREATED) != 0)
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
{
|
Fri Jan 3 16:58:31 1997 Richard Henderson <rth@tamu.edu>
elf64-alpha multiple .got rewrite:
* elf-bfd.h (struct elf_backend_data): Add always_size_sections entry.
(bfd_elf*_mkobject): Don't define here ...
* elfxx-target.h: ... but rather here. Default always_size_sections
hook to NULL.
* elf.c (elf_mkobject): Rename to bfd_elf_mkobject, since that was
what the #defines in elf-bfd.h transmuted it to anyway.
* section.c: Add SEC_LINKER_CREATED flag.
* bfd-in2.h: Rebuild.
* elf32-i386.c (elf_i386_check_relocs): Add SEC_LINKER_CREATED to
relocation section flags.
(elf_i386_size_dynamic_sections): Use SEC_LINKER_CREATED instead of
SEC_IN_MEMORY to recognize generated bits.
* elf32-m68k.c (elf_m68k_check_relocs, elf_m68k_size_dynamic_sections):
Likewise.
* elf32-mips.c (mips_elf_final_link, mips_elf_create_dynamic_sections,
mips_elf_create_compact_rel_section, mips_elf_create_got_section,
mips_elf_check_relocs, mips_elf_size_dynamic_sections): Likewise.
* elf32-ppc.c (ppc_elf_create_linker_section,
ppc_elf_size_dynamic_sections): Likewise.
* elf32-sparc.c (elf32_sparc_check_relocs,
elf32_sparc_size_dynamic_sections): Likewise.
* elflink.c (_bfd_elf_create_got_section): Add SEC_LINKER_CREATED to
section flags.
(_bfd_elf_create_dynamic_sections): Likewise.
(_bfd_elf_make_linker_section_rela): Likewise.
* elflink.h (elf_link_create_dynamic_sections): Likewise.
(bfd_elf,size_dynamic_sections): Call the always_size_sections hook.
(elf_bfd_final_link): Use SEC_LINKER_CREATED instead of SEC_IN_MEMORY
to identify generated bits.
(elf_link_input_bfd): Likewise.
* elf64-alpha.c: Rewrite everything touching relocations.
1997-01-03 22:09:40 +00:00
|
|
|
|
/* Section was created by elf_link_create_dynamic_sections
|
|
|
|
|
or somesuch. */
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
|
1996-08-30 22:09:51 +00:00
|
|
|
|
/* Get the contents of the section. They have been cached by a
|
|
|
|
|
relaxation routine. Note that o is a section in an input
|
|
|
|
|
file, so the contents field will not have been set by any of
|
|
|
|
|
the routines which work on output files. */
|
|
|
|
|
if (elf_section_data (o)->this_hdr.contents != NULL)
|
|
|
|
|
contents = elf_section_data (o)->this_hdr.contents;
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
contents = finfo->contents;
|
|
|
|
|
if (! bfd_get_section_contents (input_bfd, o, contents,
|
|
|
|
|
(file_ptr) 0, o->_raw_size))
|
|
|
|
|
return false;
|
|
|
|
|
}
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
|
|
|
|
if ((o->flags & SEC_RELOC) != 0)
|
|
|
|
|
{
|
|
|
|
|
Elf_Internal_Rela *internal_relocs;
|
|
|
|
|
|
|
|
|
|
/* Get the swapped relocs. */
|
1996-08-30 22:09:51 +00:00
|
|
|
|
internal_relocs = (NAME(_bfd_elf,link_read_relocs)
|
|
|
|
|
(input_bfd, o, finfo->external_relocs,
|
|
|
|
|
finfo->internal_relocs, false));
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
if (internal_relocs == NULL
|
|
|
|
|
&& o->reloc_count > 0)
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
/* Relocate the section by invoking a back end routine.
|
|
|
|
|
|
|
|
|
|
The back end routine is responsible for adjusting the
|
|
|
|
|
section contents as necessary, and (if using Rela relocs
|
|
|
|
|
and generating a relocateable output file) adjusting the
|
|
|
|
|
reloc addend as necessary.
|
|
|
|
|
|
|
|
|
|
The back end routine does not have to worry about setting
|
|
|
|
|
the reloc address or the reloc symbol index.
|
|
|
|
|
|
|
|
|
|
The back end routine is given a pointer to the swapped in
|
|
|
|
|
internal symbols, and can access the hash table entries
|
|
|
|
|
for the external symbols via elf_sym_hashes (input_bfd).
|
|
|
|
|
|
|
|
|
|
When generating relocateable output, the back end routine
|
|
|
|
|
must handle STB_LOCAL/STT_SECTION symbols specially. The
|
|
|
|
|
output symbol is going to be a section symbol
|
|
|
|
|
corresponding to the output section, which will require
|
|
|
|
|
the addend to be adjusted. */
|
|
|
|
|
|
|
|
|
|
if (! (*relocate_section) (output_bfd, finfo->info,
|
1996-08-30 22:09:51 +00:00
|
|
|
|
input_bfd, o, contents,
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
internal_relocs,
|
|
|
|
|
finfo->internal_syms,
|
|
|
|
|
finfo->sections))
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
if (finfo->info->relocateable)
|
|
|
|
|
{
|
|
|
|
|
Elf_Internal_Rela *irela;
|
|
|
|
|
Elf_Internal_Rela *irelaend;
|
|
|
|
|
struct elf_link_hash_entry **rel_hash;
|
|
|
|
|
Elf_Internal_Shdr *input_rel_hdr;
|
|
|
|
|
Elf_Internal_Shdr *output_rel_hdr;
|
|
|
|
|
|
|
|
|
|
/* Adjust the reloc addresses and symbol indices. */
|
|
|
|
|
|
|
|
|
|
irela = internal_relocs;
|
|
|
|
|
irelaend = irela + o->reloc_count;
|
|
|
|
|
rel_hash = (elf_section_data (o->output_section)->rel_hashes
|
|
|
|
|
+ o->output_section->reloc_count);
|
|
|
|
|
for (; irela < irelaend; irela++, rel_hash++)
|
|
|
|
|
{
|
1995-09-12 16:23:25 +00:00
|
|
|
|
unsigned long r_symndx;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
Elf_Internal_Sym *isym;
|
|
|
|
|
asection *sec;
|
|
|
|
|
|
|
|
|
|
irela->r_offset += o->output_offset;
|
|
|
|
|
|
|
|
|
|
r_symndx = ELF_R_SYM (irela->r_info);
|
|
|
|
|
|
|
|
|
|
if (r_symndx == 0)
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
if (r_symndx >= locsymcount
|
|
|
|
|
|| (elf_bad_symtab (input_bfd)
|
|
|
|
|
&& finfo->sections[r_symndx] == NULL))
|
|
|
|
|
{
|
1997-12-11 04:38:44 +00:00
|
|
|
|
struct elf_link_hash_entry *rh;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
long indx;
|
|
|
|
|
|
|
|
|
|
/* This is a reloc against a global symbol. We
|
|
|
|
|
have not yet output all the local symbols, so
|
|
|
|
|
we do not know the symbol index of any global
|
|
|
|
|
symbol. We set the rel_hash entry for this
|
|
|
|
|
reloc to point to the global hash table entry
|
|
|
|
|
for this symbol. The symbol index is then
|
|
|
|
|
set at the end of elf_bfd_final_link. */
|
|
|
|
|
indx = r_symndx - extsymoff;
|
1997-12-11 04:38:44 +00:00
|
|
|
|
rh = elf_sym_hashes (input_bfd)[indx];
|
|
|
|
|
while (rh->root.type == bfd_link_hash_indirect
|
|
|
|
|
|| rh->root.type == bfd_link_hash_warning)
|
|
|
|
|
rh = (struct elf_link_hash_entry *) rh->root.u.i.link;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
|
|
|
|
/* Setting the index to -2 tells
|
|
|
|
|
elf_link_output_extsym that this symbol is
|
|
|
|
|
used by a reloc. */
|
1997-12-11 04:38:44 +00:00
|
|
|
|
BFD_ASSERT (rh->indx < 0);
|
|
|
|
|
rh->indx = -2;
|
|
|
|
|
|
|
|
|
|
*rel_hash = rh;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* This is a reloc against a local symbol. */
|
|
|
|
|
|
|
|
|
|
*rel_hash = NULL;
|
|
|
|
|
isym = finfo->internal_syms + r_symndx;
|
|
|
|
|
sec = finfo->sections[r_symndx];
|
|
|
|
|
if (ELF_ST_TYPE (isym->st_info) == STT_SECTION)
|
|
|
|
|
{
|
|
|
|
|
/* I suppose the backend ought to fill in the
|
|
|
|
|
section of any STT_SECTION symbol against a
|
1997-02-07 17:40:24 +00:00
|
|
|
|
processor specific section. If we have
|
|
|
|
|
discarded a section, the output_section will
|
|
|
|
|
be the absolute section. */
|
|
|
|
|
if (sec != NULL
|
|
|
|
|
&& (bfd_is_abs_section (sec)
|
|
|
|
|
|| (sec->output_section != NULL
|
|
|
|
|
&& bfd_is_abs_section (sec->output_section))))
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
r_symndx = 0;
|
|
|
|
|
else if (sec == NULL || sec->owner == NULL)
|
|
|
|
|
{
|
|
|
|
|
bfd_set_error (bfd_error_bad_value);
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
r_symndx = sec->output_section->target_index;
|
|
|
|
|
BFD_ASSERT (r_symndx != 0);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
if (finfo->indices[r_symndx] == -1)
|
|
|
|
|
{
|
|
|
|
|
unsigned long link;
|
|
|
|
|
const char *name;
|
|
|
|
|
asection *osec;
|
|
|
|
|
|
|
|
|
|
if (finfo->info->strip == strip_all)
|
|
|
|
|
{
|
|
|
|
|
/* You can't do ld -r -s. */
|
|
|
|
|
bfd_set_error (bfd_error_invalid_operation);
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* This symbol was skipped earlier, but
|
|
|
|
|
since it is needed by a reloc, we
|
|
|
|
|
must output it now. */
|
|
|
|
|
link = symtab_hdr->sh_link;
|
|
|
|
|
name = bfd_elf_string_from_elf_section (input_bfd,
|
|
|
|
|
link,
|
|
|
|
|
isym->st_name);
|
|
|
|
|
if (name == NULL)
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
osec = sec->output_section;
|
|
|
|
|
isym->st_shndx =
|
|
|
|
|
_bfd_elf_section_from_bfd_section (output_bfd,
|
|
|
|
|
osec);
|
|
|
|
|
if (isym->st_shndx == (unsigned short) -1)
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
isym->st_value += sec->output_offset;
|
|
|
|
|
if (! finfo->info->relocateable)
|
|
|
|
|
isym->st_value += osec->vma;
|
|
|
|
|
|
|
|
|
|
finfo->indices[r_symndx] = output_bfd->symcount;
|
|
|
|
|
|
|
|
|
|
if (! elf_link_output_sym (finfo, name, isym, sec))
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
r_symndx = finfo->indices[r_symndx];
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
irela->r_info = ELF_R_INFO (r_symndx,
|
|
|
|
|
ELF_R_TYPE (irela->r_info));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Swap out the relocs. */
|
|
|
|
|
input_rel_hdr = &elf_section_data (o)->rel_hdr;
|
|
|
|
|
output_rel_hdr = &elf_section_data (o->output_section)->rel_hdr;
|
|
|
|
|
BFD_ASSERT (output_rel_hdr->sh_entsize
|
|
|
|
|
== input_rel_hdr->sh_entsize);
|
|
|
|
|
irela = internal_relocs;
|
|
|
|
|
irelaend = irela + o->reloc_count;
|
|
|
|
|
if (input_rel_hdr->sh_entsize == sizeof (Elf_External_Rel))
|
|
|
|
|
{
|
|
|
|
|
Elf_External_Rel *erel;
|
|
|
|
|
|
|
|
|
|
erel = ((Elf_External_Rel *) output_rel_hdr->contents
|
|
|
|
|
+ o->output_section->reloc_count);
|
|
|
|
|
for (; irela < irelaend; irela++, erel++)
|
|
|
|
|
{
|
|
|
|
|
Elf_Internal_Rel irel;
|
|
|
|
|
|
|
|
|
|
irel.r_offset = irela->r_offset;
|
|
|
|
|
irel.r_info = irela->r_info;
|
|
|
|
|
BFD_ASSERT (irela->r_addend == 0);
|
|
|
|
|
elf_swap_reloc_out (output_bfd, &irel, erel);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
Elf_External_Rela *erela;
|
|
|
|
|
|
|
|
|
|
BFD_ASSERT (input_rel_hdr->sh_entsize
|
|
|
|
|
== sizeof (Elf_External_Rela));
|
|
|
|
|
erela = ((Elf_External_Rela *) output_rel_hdr->contents
|
|
|
|
|
+ o->output_section->reloc_count);
|
|
|
|
|
for (; irela < irelaend; irela++, erela++)
|
|
|
|
|
elf_swap_reloca_out (output_bfd, irela, erela);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
o->output_section->reloc_count += o->reloc_count;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Write out the modified section contents. */
|
1996-04-22 22:35:53 +00:00
|
|
|
|
if (elf_section_data (o)->stab_info == NULL)
|
|
|
|
|
{
|
|
|
|
|
if (! bfd_set_section_contents (output_bfd, o->output_section,
|
1996-08-30 22:09:51 +00:00
|
|
|
|
contents, o->output_offset,
|
1996-04-22 22:35:53 +00:00
|
|
|
|
(o->_cooked_size != 0
|
|
|
|
|
? o->_cooked_size
|
|
|
|
|
: o->_raw_size)))
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
1997-03-25 19:46:12 +00:00
|
|
|
|
if (! (_bfd_write_section_stabs
|
|
|
|
|
(output_bfd, &elf_hash_table (finfo->info)->stab_info,
|
|
|
|
|
o, &elf_section_data (o)->stab_info, contents)))
|
1996-04-22 22:35:53 +00:00
|
|
|
|
return false;
|
|
|
|
|
}
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Generate a reloc when linking an ELF file. This is a reloc
|
|
|
|
|
requested by the linker, and does come from any input file. This
|
|
|
|
|
is used to build constructor and destructor tables when linking
|
|
|
|
|
with -Ur. */
|
|
|
|
|
|
|
|
|
|
static boolean
|
|
|
|
|
elf_reloc_link_order (output_bfd, info, output_section, link_order)
|
|
|
|
|
bfd *output_bfd;
|
|
|
|
|
struct bfd_link_info *info;
|
|
|
|
|
asection *output_section;
|
|
|
|
|
struct bfd_link_order *link_order;
|
|
|
|
|
{
|
|
|
|
|
reloc_howto_type *howto;
|
|
|
|
|
long indx;
|
|
|
|
|
bfd_vma offset;
|
1996-01-11 21:06:42 +00:00
|
|
|
|
bfd_vma addend;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
struct elf_link_hash_entry **rel_hash_ptr;
|
|
|
|
|
Elf_Internal_Shdr *rel_hdr;
|
|
|
|
|
|
|
|
|
|
howto = bfd_reloc_type_lookup (output_bfd, link_order->u.reloc.p->reloc);
|
|
|
|
|
if (howto == NULL)
|
|
|
|
|
{
|
|
|
|
|
bfd_set_error (bfd_error_bad_value);
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
1996-01-11 21:06:42 +00:00
|
|
|
|
addend = link_order->u.reloc.p->addend;
|
|
|
|
|
|
|
|
|
|
/* Figure out the symbol index. */
|
|
|
|
|
rel_hash_ptr = (elf_section_data (output_section)->rel_hashes
|
|
|
|
|
+ output_section->reloc_count);
|
|
|
|
|
if (link_order->type == bfd_section_reloc_link_order)
|
|
|
|
|
{
|
|
|
|
|
indx = link_order->u.reloc.p->u.section->target_index;
|
|
|
|
|
BFD_ASSERT (indx != 0);
|
|
|
|
|
*rel_hash_ptr = NULL;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
struct elf_link_hash_entry *h;
|
|
|
|
|
|
|
|
|
|
/* Treat a reloc against a defined symbol as though it were
|
|
|
|
|
actually against the section. */
|
1996-03-12 23:14:58 +00:00
|
|
|
|
h = ((struct elf_link_hash_entry *)
|
|
|
|
|
bfd_wrapped_link_hash_lookup (output_bfd, info,
|
|
|
|
|
link_order->u.reloc.p->u.name,
|
|
|
|
|
false, false, true));
|
1996-01-11 21:06:42 +00:00
|
|
|
|
if (h != NULL
|
|
|
|
|
&& (h->root.type == bfd_link_hash_defined
|
|
|
|
|
|| h->root.type == bfd_link_hash_defweak))
|
|
|
|
|
{
|
|
|
|
|
asection *section;
|
|
|
|
|
|
|
|
|
|
section = h->root.u.def.section;
|
|
|
|
|
indx = section->output_section->target_index;
|
|
|
|
|
*rel_hash_ptr = NULL;
|
|
|
|
|
/* It seems that we ought to add the symbol value to the
|
|
|
|
|
addend here, but in practice it has already been added
|
|
|
|
|
because it was passed to constructor_callback. */
|
|
|
|
|
addend += section->output_section->vma + section->output_offset;
|
|
|
|
|
}
|
|
|
|
|
else if (h != NULL)
|
|
|
|
|
{
|
|
|
|
|
/* Setting the index to -2 tells elf_link_output_extsym that
|
|
|
|
|
this symbol is used by a reloc. */
|
|
|
|
|
h->indx = -2;
|
|
|
|
|
*rel_hash_ptr = h;
|
|
|
|
|
indx = 0;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
if (! ((*info->callbacks->unattached_reloc)
|
|
|
|
|
(info, link_order->u.reloc.p->u.name, (bfd *) NULL,
|
|
|
|
|
(asection *) NULL, (bfd_vma) 0)))
|
|
|
|
|
return false;
|
|
|
|
|
indx = 0;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
/* If this is an inplace reloc, we must write the addend into the
|
|
|
|
|
object file. */
|
1996-01-11 21:06:42 +00:00
|
|
|
|
if (howto->partial_inplace && addend != 0)
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
{
|
|
|
|
|
bfd_size_type size;
|
|
|
|
|
bfd_reloc_status_type rstat;
|
|
|
|
|
bfd_byte *buf;
|
|
|
|
|
boolean ok;
|
|
|
|
|
|
|
|
|
|
size = bfd_get_reloc_size (howto);
|
|
|
|
|
buf = (bfd_byte *) bfd_zmalloc (size);
|
|
|
|
|
if (buf == (bfd_byte *) NULL)
|
1995-11-29 22:05:37 +00:00
|
|
|
|
return false;
|
1996-01-11 21:06:42 +00:00
|
|
|
|
rstat = _bfd_relocate_contents (howto, output_bfd, addend, buf);
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
switch (rstat)
|
|
|
|
|
{
|
|
|
|
|
case bfd_reloc_ok:
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
case bfd_reloc_outofrange:
|
|
|
|
|
abort ();
|
|
|
|
|
case bfd_reloc_overflow:
|
|
|
|
|
if (! ((*info->callbacks->reloc_overflow)
|
|
|
|
|
(info,
|
|
|
|
|
(link_order->type == bfd_section_reloc_link_order
|
|
|
|
|
? bfd_section_name (output_bfd,
|
|
|
|
|
link_order->u.reloc.p->u.section)
|
|
|
|
|
: link_order->u.reloc.p->u.name),
|
1996-01-11 21:06:42 +00:00
|
|
|
|
howto->name, addend, (bfd *) NULL, (asection *) NULL,
|
|
|
|
|
(bfd_vma) 0)))
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
{
|
|
|
|
|
free (buf);
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
ok = bfd_set_section_contents (output_bfd, output_section, (PTR) buf,
|
|
|
|
|
(file_ptr) link_order->offset, size);
|
|
|
|
|
free (buf);
|
|
|
|
|
if (! ok)
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* The address of a reloc is relative to the section in a
|
|
|
|
|
relocateable file, and is a virtual address in an executable
|
|
|
|
|
file. */
|
|
|
|
|
offset = link_order->offset;
|
|
|
|
|
if (! info->relocateable)
|
|
|
|
|
offset += output_section->vma;
|
|
|
|
|
|
|
|
|
|
rel_hdr = &elf_section_data (output_section)->rel_hdr;
|
|
|
|
|
|
|
|
|
|
if (rel_hdr->sh_type == SHT_REL)
|
|
|
|
|
{
|
|
|
|
|
Elf_Internal_Rel irel;
|
|
|
|
|
Elf_External_Rel *erel;
|
|
|
|
|
|
|
|
|
|
irel.r_offset = offset;
|
|
|
|
|
irel.r_info = ELF_R_INFO (indx, howto->type);
|
|
|
|
|
erel = ((Elf_External_Rel *) rel_hdr->contents
|
|
|
|
|
+ output_section->reloc_count);
|
|
|
|
|
elf_swap_reloc_out (output_bfd, &irel, erel);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
Elf_Internal_Rela irela;
|
|
|
|
|
Elf_External_Rela *erela;
|
|
|
|
|
|
|
|
|
|
irela.r_offset = offset;
|
|
|
|
|
irela.r_info = ELF_R_INFO (indx, howto->type);
|
1996-01-11 21:06:42 +00:00
|
|
|
|
irela.r_addend = addend;
|
Added new files elflink.c, elflink.h, elfcore.h.
Moved some mostly size-independent stuff from elfcode.h to elf.c, adding a data
structure to elfcode.h with some misc data and callback functions. Added a
pointer to that structure to the target back end data. More work can be done
here.
Renamed generic elf routines (not cpu-specific stuff) to start with bfd_elf or
_bfd_elf. Updated most call sites, sometimes defined some macros.
Moved some dynamic linking support code from m68k, sparc, i386 to common files,
using target back end flags to control behavior. More work can probably be
done here too.
Moved core- and linker-support code out of elfcode.h to elf.c, elfcore.h,
elflink.h, or elflink.c. Now elfcode.h contains only .o and executable
support, plus #includes of elfcore.h and elflink.h. Much of the contents of
these other header files can probably still be moved from the .h files to the
.c files, to get compiled only once.
Cleaned up some "gcc -Wall" warnings regarding unused or uninitialized
variables, in generic and cpu-specific code.
1995-07-06 02:22:00 +00:00
|
|
|
|
erela = ((Elf_External_Rela *) rel_hdr->contents
|
|
|
|
|
+ output_section->reloc_count);
|
|
|
|
|
elf_swap_reloca_out (output_bfd, &irela, erela);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
++output_section->reloc_count;
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
|
1996-01-22 16:43:35 +00:00
|
|
|
|
|
|
|
|
|
/* Allocate a pointer to live in a linker created section. */
|
|
|
|
|
|
|
|
|
|
boolean
|
|
|
|
|
elf_create_pointer_linker_section (abfd, info, lsect, h, rel)
|
|
|
|
|
bfd *abfd;
|
|
|
|
|
struct bfd_link_info *info;
|
|
|
|
|
elf_linker_section_t *lsect;
|
|
|
|
|
struct elf_link_hash_entry *h;
|
|
|
|
|
const Elf_Internal_Rela *rel;
|
|
|
|
|
{
|
|
|
|
|
elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL;
|
|
|
|
|
elf_linker_section_pointers_t *linker_section_ptr;
|
|
|
|
|
unsigned long r_symndx = ELF_R_SYM (rel->r_info);;
|
|
|
|
|
|
|
|
|
|
BFD_ASSERT (lsect != NULL);
|
|
|
|
|
|
|
|
|
|
/* Is this a global symbol? */
|
|
|
|
|
if (h != NULL)
|
|
|
|
|
{
|
|
|
|
|
/* Has this symbol already been allocated, if so, our work is done */
|
|
|
|
|
if (_bfd_elf_find_pointer_linker_section (h->linker_section_pointer,
|
|
|
|
|
rel->r_addend,
|
|
|
|
|
lsect->which))
|
|
|
|
|
return true;
|
|
|
|
|
|
|
|
|
|
ptr_linker_section_ptr = &h->linker_section_pointer;
|
|
|
|
|
/* Make sure this symbol is output as a dynamic symbol. */
|
|
|
|
|
if (h->dynindx == -1)
|
|
|
|
|
{
|
|
|
|
|
if (! elf_link_record_dynamic_symbol (info, h))
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
1996-01-25 17:15:24 +00:00
|
|
|
|
if (lsect->rel_section)
|
|
|
|
|
lsect->rel_section->_raw_size += sizeof (Elf_External_Rela);
|
1996-01-22 16:43:35 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
else /* Allocation of a pointer to a local symbol */
|
|
|
|
|
{
|
|
|
|
|
elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd);
|
|
|
|
|
|
|
|
|
|
/* Allocate a table to hold the local symbols if first time */
|
|
|
|
|
if (!ptr)
|
|
|
|
|
{
|
1998-03-27 21:30:53 +00:00
|
|
|
|
unsigned int num_symbols = elf_tdata (abfd)->symtab_hdr.sh_info;
|
1996-01-22 16:43:35 +00:00
|
|
|
|
register unsigned int i;
|
|
|
|
|
|
|
|
|
|
ptr = (elf_linker_section_pointers_t **)
|
|
|
|
|
bfd_alloc (abfd, num_symbols * sizeof (elf_linker_section_pointers_t *));
|
|
|
|
|
|
|
|
|
|
if (!ptr)
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
elf_local_ptr_offsets (abfd) = ptr;
|
|
|
|
|
for (i = 0; i < num_symbols; i++)
|
|
|
|
|
ptr[i] = (elf_linker_section_pointers_t *)0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Has this symbol already been allocated, if so, our work is done */
|
|
|
|
|
if (_bfd_elf_find_pointer_linker_section (ptr[r_symndx],
|
|
|
|
|
rel->r_addend,
|
|
|
|
|
lsect->which))
|
|
|
|
|
return true;
|
|
|
|
|
|
|
|
|
|
ptr_linker_section_ptr = &ptr[r_symndx];
|
|
|
|
|
|
|
|
|
|
if (info->shared)
|
|
|
|
|
{
|
|
|
|
|
/* If we are generating a shared object, we need to
|
1996-01-22 23:55:25 +00:00
|
|
|
|
output a R_<xxx>_RELATIVE reloc so that the
|
1996-01-22 16:43:35 +00:00
|
|
|
|
dynamic linker can adjust this GOT entry. */
|
|
|
|
|
BFD_ASSERT (lsect->rel_section != NULL);
|
|
|
|
|
lsect->rel_section->_raw_size += sizeof (Elf_External_Rela);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Allocate space for a pointer in the linker section, and allocate a new pointer record
|
|
|
|
|
from internal memory. */
|
|
|
|
|
BFD_ASSERT (ptr_linker_section_ptr != NULL);
|
|
|
|
|
linker_section_ptr = (elf_linker_section_pointers_t *)
|
|
|
|
|
bfd_alloc (abfd, sizeof (elf_linker_section_pointers_t));
|
|
|
|
|
|
|
|
|
|
if (!linker_section_ptr)
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
linker_section_ptr->next = *ptr_linker_section_ptr;
|
|
|
|
|
linker_section_ptr->addend = rel->r_addend;
|
|
|
|
|
linker_section_ptr->which = lsect->which;
|
|
|
|
|
linker_section_ptr->written_address_p = false;
|
|
|
|
|
*ptr_linker_section_ptr = linker_section_ptr;
|
|
|
|
|
|
1996-06-25 19:45:17 +00:00
|
|
|
|
#if 0
|
1996-01-22 16:43:35 +00:00
|
|
|
|
if (lsect->hole_size && lsect->hole_offset < lsect->max_hole_offset)
|
|
|
|
|
{
|
1996-06-25 19:45:17 +00:00
|
|
|
|
linker_section_ptr->offset = lsect->section->_raw_size - lsect->hole_size + (ARCH_SIZE / 8);
|
1996-01-22 16:43:35 +00:00
|
|
|
|
lsect->hole_offset += ARCH_SIZE / 8;
|
|
|
|
|
lsect->sym_offset += ARCH_SIZE / 8;
|
|
|
|
|
if (lsect->sym_hash) /* Bump up symbol value if needed */
|
1996-06-24 22:45:02 +00:00
|
|
|
|
{
|
|
|
|
|
lsect->sym_hash->root.u.def.value += ARCH_SIZE / 8;
|
|
|
|
|
#ifdef DEBUG
|
|
|
|
|
fprintf (stderr, "Bump up %s by %ld, current value = %ld\n",
|
|
|
|
|
lsect->sym_hash->root.root.string,
|
|
|
|
|
(long)ARCH_SIZE / 8,
|
|
|
|
|
(long)lsect->sym_hash->root.u.def.value);
|
|
|
|
|
#endif
|
|
|
|
|
}
|
1996-01-22 16:43:35 +00:00
|
|
|
|
}
|
|
|
|
|
else
|
1996-06-25 19:45:17 +00:00
|
|
|
|
#endif
|
1996-01-22 16:43:35 +00:00
|
|
|
|
linker_section_ptr->offset = lsect->section->_raw_size;
|
|
|
|
|
|
|
|
|
|
lsect->section->_raw_size += ARCH_SIZE / 8;
|
|
|
|
|
|
|
|
|
|
#ifdef DEBUG
|
|
|
|
|
fprintf (stderr, "Create pointer in linker section %s, offset = %ld, section size = %ld\n",
|
|
|
|
|
lsect->name, (long)linker_section_ptr->offset, (long)lsect->section->_raw_size);
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#if ARCH_SIZE==64
|
|
|
|
|
#define bfd_put_ptr(BFD,VAL,ADDR) bfd_put_64 (BFD, VAL, ADDR)
|
|
|
|
|
#endif
|
|
|
|
|
#if ARCH_SIZE==32
|
|
|
|
|
#define bfd_put_ptr(BFD,VAL,ADDR) bfd_put_32 (BFD, VAL, ADDR)
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* Fill in the address for a pointer generated in alinker section. */
|
|
|
|
|
|
|
|
|
|
bfd_vma
|
|
|
|
|
elf_finish_pointer_linker_section (output_bfd, input_bfd, info, lsect, h, relocation, rel, relative_reloc)
|
|
|
|
|
bfd *output_bfd;
|
|
|
|
|
bfd *input_bfd;
|
|
|
|
|
struct bfd_link_info *info;
|
|
|
|
|
elf_linker_section_t *lsect;
|
|
|
|
|
struct elf_link_hash_entry *h;
|
|
|
|
|
bfd_vma relocation;
|
|
|
|
|
const Elf_Internal_Rela *rel;
|
|
|
|
|
int relative_reloc;
|
|
|
|
|
{
|
|
|
|
|
elf_linker_section_pointers_t *linker_section_ptr;
|
|
|
|
|
|
|
|
|
|
BFD_ASSERT (lsect != NULL);
|
|
|
|
|
|
|
|
|
|
if (h != NULL) /* global symbol */
|
|
|
|
|
{
|
|
|
|
|
linker_section_ptr = _bfd_elf_find_pointer_linker_section (h->linker_section_pointer,
|
|
|
|
|
rel->r_addend,
|
|
|
|
|
lsect->which);
|
|
|
|
|
|
|
|
|
|
BFD_ASSERT (linker_section_ptr != NULL);
|
|
|
|
|
|
|
|
|
|
if (! elf_hash_table (info)->dynamic_sections_created
|
|
|
|
|
|| (info->shared
|
|
|
|
|
&& info->symbolic
|
|
|
|
|
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
|
|
|
|
|
{
|
|
|
|
|
/* This is actually a static link, or it is a
|
|
|
|
|
-Bsymbolic link and the symbol is defined
|
|
|
|
|
locally. We must initialize this entry in the
|
|
|
|
|
global section.
|
|
|
|
|
|
|
|
|
|
When doing a dynamic link, we create a .rela.<xxx>
|
|
|
|
|
relocation entry to initialize the value. This
|
|
|
|
|
is done in the finish_dynamic_symbol routine. */
|
|
|
|
|
if (!linker_section_ptr->written_address_p)
|
|
|
|
|
{
|
|
|
|
|
linker_section_ptr->written_address_p = true;
|
|
|
|
|
bfd_put_ptr (output_bfd, relocation + linker_section_ptr->addend,
|
|
|
|
|
lsect->section->contents + linker_section_ptr->offset);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else /* local symbol */
|
|
|
|
|
{
|
|
|
|
|
unsigned long r_symndx = ELF_R_SYM (rel->r_info);
|
|
|
|
|
BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL);
|
|
|
|
|
BFD_ASSERT (elf_local_ptr_offsets (input_bfd)[r_symndx] != NULL);
|
|
|
|
|
linker_section_ptr = _bfd_elf_find_pointer_linker_section (elf_local_ptr_offsets (input_bfd)[r_symndx],
|
|
|
|
|
rel->r_addend,
|
|
|
|
|
lsect->which);
|
|
|
|
|
|
|
|
|
|
BFD_ASSERT (linker_section_ptr != NULL);
|
|
|
|
|
|
|
|
|
|
/* Write out pointer if it hasn't been rewritten out before */
|
|
|
|
|
if (!linker_section_ptr->written_address_p)
|
|
|
|
|
{
|
|
|
|
|
linker_section_ptr->written_address_p = true;
|
|
|
|
|
bfd_put_ptr (output_bfd, relocation + linker_section_ptr->addend,
|
|
|
|
|
lsect->section->contents + linker_section_ptr->offset);
|
|
|
|
|
|
|
|
|
|
if (info->shared)
|
|
|
|
|
{
|
|
|
|
|
asection *srel = lsect->rel_section;
|
|
|
|
|
Elf_Internal_Rela outrel;
|
|
|
|
|
|
|
|
|
|
/* We need to generate a relative reloc for the dynamic linker. */
|
|
|
|
|
if (!srel)
|
|
|
|
|
lsect->rel_section = srel = bfd_get_section_by_name (elf_hash_table (info)->dynobj,
|
|
|
|
|
lsect->rel_name);
|
|
|
|
|
|
|
|
|
|
BFD_ASSERT (srel != NULL);
|
|
|
|
|
|
|
|
|
|
outrel.r_offset = (lsect->section->output_section->vma
|
|
|
|
|
+ lsect->section->output_offset
|
|
|
|
|
+ linker_section_ptr->offset);
|
|
|
|
|
outrel.r_info = ELF_R_INFO (0, relative_reloc);
|
|
|
|
|
outrel.r_addend = 0;
|
|
|
|
|
elf_swap_reloca_out (output_bfd, &outrel,
|
1996-01-22 18:17:16 +00:00
|
|
|
|
(((Elf_External_Rela *)
|
1996-01-22 16:43:35 +00:00
|
|
|
|
lsect->section->contents)
|
|
|
|
|
+ lsect->section->reloc_count));
|
|
|
|
|
++lsect->section->reloc_count;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
relocation = (lsect->section->output_offset
|
|
|
|
|
+ linker_section_ptr->offset
|
|
|
|
|
- lsect->hole_offset
|
|
|
|
|
- lsect->sym_offset);
|
|
|
|
|
|
|
|
|
|
#ifdef DEBUG
|
|
|
|
|
fprintf (stderr, "Finish pointer in linker section %s, offset = %ld (0x%lx)\n",
|
|
|
|
|
lsect->name, (long)relocation, (long)relocation);
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* Subtract out the addend, because it will get added back in by the normal
|
|
|
|
|
processing. */
|
|
|
|
|
return relocation - linker_section_ptr->addend;
|
|
|
|
|
}
|