old-cross-binutils/ld
Jakub Jelinek 13ae64f3c7 * elf.c (_bfd_elf_make_section_from_shdr): Set SEC_THREAD_LOCAL
for symbols from SHF_TLS section.
	(_bfd_elf_print_private_bfd_data): Add PT_TLS.
	(elf_fake_sections): Set SHF_TLS for SEC_THREAD_LOCAL sections.
	(map_sections_to_segments): Build PT_TLS segment if necessary.
	(assign_file_positions_for_segments): Likewise.
	(get_program_header_size): Account for PT_TLS segment.
	(swap_out_syms): Set type of BSF_THREAD_LOCAL symbols and symbols from
	SEC_THREAD_LOCAL sections to STT_TLS.
	* reloc.c: Add 386 and IA-64 TLS relocs.
	* section.c (SEC_THREAD_LOCAL): Define.
	(SEC_CONSTRUCTOR_TEXT, SEC_CONSTRUCTOR_DATA, SEC_CONSTRUCTOR_BSS):
	Remove.
	* elflink.h (elf_link_add_object_symbols): Support .tcommon.
	(size_dynamic_sections): If DF_STATIC_TLS, set DF_FLAGS
	unconditionally.
	(struct elf_final_link_info): Add first_tls_sec.
	(elf_bfd_final_link): Set first_tls_sec.
	Compute elf_hash_table (info)->tls_segment.
	(elf_link_output_extsym): Handle STT_TLS symbols.
	(elf_link_input_bfd): Likewise.
	* syms.c (BSF_THREAD_LOCAL): Define.
	* bfd-in2.h: Rebuilt.
	* libbfd.h: Rebuilt.
	* elf32-i386.c (elf_i386_tls_transition, dtpoff_base, tpoff,
	elf_i386_mkobject, elf_i386_object_p): New functions.
	(elf_howto_table): Add TLS relocs.
	(elf_i386_reloc_type_lookup): Support TLS relocs.
	(elf_i386_info_to_howto_rel): Likewise.
	(struct elf_i386_link_hash_entry): Add tls_type.
	(struct elf_i386_obj_tdata): New.
	(elf_i386_hash_entry, elf_i386_tdata, elf_i386_local_got_tls_type):
	New macros.
	(struct elf_i386_link_hash_table): Add tls_ldm_got.
	(link_hash_newfunc): Clear tls_type.
	(elf_i386_check_relocs): Support TLS relocs.
	(elf_i386_gc_sweep_hook): Likewise.
	(allocate_dynrelocs): Likewise.
	(elf_i386_size_dynamic_sections): Likewise.
	(elf_i386_relocate_section): Likewise.
	(elf_i386_finish_dynamic_symbol): Likewise.
	(bfd_elf32_mkobject, elf_backend_object_p): Define.
	* elfxx-ia64.c (struct elfNN_ia64_dyn_sym_info): Add tprel_offset,
	dtpmod_offset, dtprel_offset, tprel_done, dtpmod_done, dtprel_done,
	want_tprel, want_dtpmod, want_dtprel.
	(elfNN_ia64_tprel_base, elfNN_ia64_dtprel_base): New functions.
	(ia64_howto_table): Add TLS relocs, rename R_IA64_LTOFF_TP22 to
	R_IA64_LTOFF_TPREL22.
	(elf_code_to_howto_index): Add TLS relocs.
	(elfNN_ia64_check_relocs): Support TLS relocs.
	(allocate_global_data_got): Account for TLS .got data.
	(allocate_dynrel_entries): Account for TLS dynamic relocations.
	(elfNN_ia64_install_value): Supprt TLS relocs.
	(set_got_entry): Support TLS relocs.
	(elfNN_ia64_relocate_section): Likewise.

	* config/obj-elf.c (elf_common): Renamed from obj_elf_common.
	(obj_elf_common): Call elf_common.
	(obj_elf_tls_common): New function.
	(elf_pseudo_tab): Support .tls_common.
	(special_sections): Add .tdata and .tbss.
	(obj_elf_change_section): Set SEC_THREAD_LOCAL for SHF_TLS
	sections.
	(obj_elf_parse_section_letters): Support T in section flags (SHF_TLS).
	(obj_elf_parse_section_letters): Include T in error message.
	* config/tc-ppc.c (ppc_section_letter): Likewise.
	* config/tc-alpha.c (alpha_elf_section_letter): Likewise.
	(tc_gen_reloc): Handle SEC_THREAD_LOCAL the same way as
	SEC_MERGE.
	* config/tc-sparc.c (md_apply_fix3): Likewise.
	* config/tc-i386.c (tc_i386_fix_adjustable): Add TLS relocs.
	Define them if not BFD_ASSEMBLER.
	(lex_got): Support @TLSGD, @TLSLDM, @GOTTPOFF, @TPOFF, @DTPOFF
	and @NTPOFF.
	(md_apply_fix3): Add TLS relocs.
	* config/tc-ia64.c (enum reloc_func): Add FUNC_DTP_MODULE,
	FUNC_DTP_RELATIVE, FUNC_TP_RELATIVE, FUNC_LT_DTP_MODULE,
	FUNC_LT_DTP_RELATIVE, FUNC_LT_TP_RELATIVE.
	(pseudo_func): Support @dtpmod(), @dtprel() and @tprel().
	(ia64_elf_section_letter): Include T in error message.
	(md_begin): Support TLS operators.
	(md_operand): Likewise.
	(ia64_gen_real_reloc_type): Support TLS relocs.
	* testsuite/gas/i386/tlspic.s: New file.
	* testsuite/gas/i386/tlsd.s: New file.
	* testsuite/gas/i386/tlsnopic.s: New file.
	* testsuite/gas/i386/tlsd.d: New file.
	* testsuite/gas/i386/tlsnopic.d: New file.
	* testsuite/gas/i386/tlspic.d: New file.
	* testsuite/gas/i386/i386.exp: Add tlsd, tlsnopic and tlspic tests.
	* testsuite/gas/ia64/tls.s: New file.
	* testsuite/gas/ia64/tls.d: New file.
	* testsuite/gas/ia64/ia64.exp: Add tls test.
	* write.c (adjust_reloc_syms): Don't change symbols in
	SEC_THREAD_LOCAL sections to STT_SECTION + addend.

	* elf/common.h (PT_TLS, SHF_TLS, STT_TLS, DF_STATIC_TLS): Define.
	* elf/ia64.h (R_IA64_LTOFF_TPREL22): Renamed from R_IA64_LTOFF_TP22.
	* elf/i386.h: Add TLS relocs.

	* scripttempl/elf.sc: Add .rel{,a}.t{bss,data}, .tdata and .tbss.
	* ldlang.c (lang_add_section): Set SEC_THREAD_LOCAL for
	output section if necessary.  Handle .tbss.
	(lang_size_sections): Clear _raw_size for .tbss section
	(it allocates space in PT_TLS segment only).
	* ldwrite.c (build_link_order): Build link order for .tbss too.

	* readelf.c (get_segment_type): Add PT_TLS.
	(get_elf_section_flags): Add SHF_TLS.
	(get_dynamic_flags): Optimize.  Add DF_STATIC_TLS.
	(process_dynamic_segment): Use puts instead of printf.
	(get_symbol_type): Support STT_TLS.
	* objdump.c (dump_section_header): Remove SEC_CONSTRUCTOR_TEXT,
	SEC_CONSTRUCTOR_DATA, SEC_CONSTRUCTOR_BSS.
	Add SEC_THREAD_LOCAL.
2002-05-23 13:12:53 +00:00
..
emulparams * genscripts.sh (LIB_PATH): For native targets, concatenate $libdir 2002-05-22 08:44:53 +00:00
emultempl * pe-dll.c (autofilter_liblist): Add more system libs excluded by default. 2002-05-22 18:03:09 +00:00
po New Swedish translation 2002-05-06 10:09:24 +00:00
scripttempl * elf.c (_bfd_elf_make_section_from_shdr): Set SEC_THREAD_LOCAL 2002-05-23 13:12:53 +00:00
testsuite * lib/ld-lib.exp (run_dump_test): Add -L$srcdir/$subdir. 2002-05-07 11:08:57 +00:00
acinclude.m4
aclocal.m4
ChangeLog * elf.c (_bfd_elf_make_section_from_shdr): Set SEC_THREAD_LOCAL 2002-05-23 13:12:53 +00:00
ChangeLog-9197
ChangeLog-9899
config.in
configure
configure.host * genscripts.sh (LIB_PATH): For native targets, concatenate $libdir 2002-05-22 08:44:53 +00:00
configure.in * configure.in: Correct spelling of AC_PREREQ. 2002-05-23 08:17:10 +00:00
configure.tgt * genscripts.sh (LIB_PATH): For native targets, concatenate $libdir 2002-05-22 08:44:53 +00:00
deffile.h
deffilep.y
dep-in.sed
gen-doc.texi
genscripts.sh * genscripts.sh (LIB_PATH): For native targets, concatenate $libdir 2002-05-22 08:44:53 +00:00
h8-doc.texi
ld.h * ld.h: Fix formatting. 2002-05-03 13:48:55 +00:00
ld.texinfo * pe-dll.c (autofilter_liblist): Add more system libs excluded by default. 2002-05-22 18:03:09 +00:00
ldcref.c
ldctor.c
ldctor.h
ldemul.c * ldemul.c (ldemul_new_vers_pattern): New function. 2002-05-22 09:04:48 +00:00
ldemul.h * ldemul.c (ldemul_new_vers_pattern): New function. 2002-05-22 09:04:48 +00:00
ldexp.c * ld.h: Fix formatting. 2002-05-03 13:48:55 +00:00
ldexp.h
ldfile.c XCOFF64 fixes. For setting arch/mach and for R_BR relocations. 2002-05-10 21:20:16 +00:00
ldfile.h XCOFF64 fixes. For setting arch/mach and for R_BR relocations. 2002-05-10 21:20:16 +00:00
ldgram.y * ldlang.h (lang_output_section_statement_type): Add update_dot_tree. 2002-05-07 11:04:54 +00:00
ldint.texinfo
ldlang.c * elf.c (_bfd_elf_make_section_from_shdr): Set SEC_THREAD_LOCAL 2002-05-23 13:12:53 +00:00
ldlang.h * ldlang.h (lang_output_section_statement_type): Add update_dot_tree. 2002-05-07 11:04:54 +00:00
ldlex.h
ldlex.l
ldmain.c 2002-05-21 H.J. Lu (hjl@gnu.org) 2002-05-22 05:08:31 +00:00
ldmain.h
ldmisc.c
ldmisc.h
ldver.c
ldver.h
ldwrite.c * elf.c (_bfd_elf_make_section_from_shdr): Set SEC_THREAD_LOCAL 2002-05-23 13:12:53 +00:00
ldwrite.h
lexsup.c 2002-05-21 H.J. Lu (hjl@gnu.org) 2002-05-22 05:08:31 +00:00
mac-ld.r
MAINTAINERS
Makefile.am bfd: 2002-05-21 15:11:04 +00:00
Makefile.in bfd: 2002-05-21 15:11:04 +00:00
mpw-config.in
mpw-make.sed
mri.c
mri.h
NEWS
pe-dll.c * pe-dll.c (autofilter_liblist): Add more system libs excluded by default. 2002-05-22 18:03:09 +00:00
pe-dll.h * pe-dll.c (autofilter_liblist): Add more system libs excluded by default. 2002-05-22 18:03:09 +00:00
README
stamp-h.in
sysdep.h
TODO

		README for LD

This is the GNU linker.  It is distributed with other "binary
utilities" which should be in ../binutils.  See ../binutils/README for
more general notes, including where to send bug reports.

There are many features of the linker:

* The linker uses a Binary File Descriptor library (../bfd)
  that it uses to read and write object files.  This helps
  insulate the linker itself from the format of object files.

* The linker supports a number of different object file
  formats.  It can even handle multiple formats at once:
  Read two input formats and write a third.

* The linker can be configured for cross-linking.

* The linker supports a control language.

* There is a user manual (ld.texinfo), as well as the
  beginnings of an internals manual (ldint.texinfo).

Installation
============

See ../binutils/README.

If you want to make a cross-linker, you may want to specify
a different search path of -lfoo libraries than the default.
You can do this by setting the LIB_PATH variable in ./Makefile.

To build just the linker, make the target all-ld from the top level
directory (one directory above this one).

Porting to a new target
=======================

See the ldint.texinfo manual.

Reporting bugs etc
===========================

See ../binutils/README.

Known problems
==============

The Solaris linker normally exports all dynamic symbols from an
executable.  The GNU linker does not do this by default.  This is
because the GNU linker tries to present the same interface for all
similar targets (in this case, all native ELF targets).  This does not
matter for normal programs, but it can make a difference for programs
which try to dlopen an executable, such as PERL or Tcl.  You can make
the GNU linker export all dynamic symbols with the -E or
--export-dynamic command line option.

HP/UX 9.01 has a shell bug that causes the linker scripts to be
generated incorrectly.  The symptom of this appears to be "fatal error
- scanner input buffer overflow" error messages.  There are various
workarounds to this:
  * Build and install bash, and build with "make SHELL=bash".
  * Update to a version of HP/UX with a working shell (e.g., 9.05).
  * Replace "(. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc)" in
    genscripts.sh with "sh ${srcdir}..." (no parens) and make sure the
    emulparams script used exports any shell variables it sets.