1379 lines
58 KiB
C
1379 lines
58 KiB
C
/* BFD back-end data structures for ELF files.
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Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
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Free Software Foundation, Inc.
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Written by Cygnus Support.
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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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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#ifndef _LIBELF_H_
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#define _LIBELF_H_ 1
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#include "elf/common.h"
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#include "elf/internal.h"
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#include "elf/external.h"
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#include "bfdlink.h"
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/* The number of entries in a section is its size divided by the size
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of a single entry. This is normally only applicaable to reloc and
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symbol table sections. */
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#define NUM_SHDR_ENTRIES(shdr) ((shdr)->sh_size / (shdr)->sh_entsize)
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/* If size isn't specified as 64 or 32, NAME macro should fail. */
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#ifndef NAME
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#if ARCH_SIZE==64
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#define NAME(x,y) CAT4(x,64,_,y)
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#endif
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#if ARCH_SIZE==32
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#define NAME(x,y) CAT4(x,32,_,y)
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#endif
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#endif
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#ifndef NAME
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#define NAME(x,y) CAT4(x,NOSIZE,_,y)
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#endif
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#define ElfNAME(X) NAME(Elf,X)
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#define elfNAME(X) NAME(elf,X)
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/* Information held for an ELF symbol. The first field is the
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corresponding asymbol. Every symbol is an ELF file is actually a
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pointer to this structure, although it is often handled as a
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pointer to an asymbol. */
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typedef struct
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{
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/* The BFD symbol. */
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asymbol symbol;
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/* ELF symbol information. */
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Elf_Internal_Sym internal_elf_sym;
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/* Backend specific information. */
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union
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{
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unsigned int hppa_arg_reloc;
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PTR mips_extr;
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PTR any;
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}
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tc_data;
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/* Version information. This is from an Elf_Internal_Versym
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structure in a SHT_GNU_versym section. It is zero if there is no
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version information. */
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unsigned short version;
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} elf_symbol_type;
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/* ELF linker hash table entries. */
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struct elf_link_hash_entry
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{
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struct bfd_link_hash_entry root;
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/* Symbol index in output file. This is initialized to -1. It is
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set to -2 if the symbol is used by a reloc. */
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long indx;
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/* Symbol size. */
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bfd_size_type size;
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/* Symbol index as a dynamic symbol. Initialized to -1, and remains
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-1 if this is not a dynamic symbol. */
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/* ??? Note that this is consistently used as a synonym for tests
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against whether we can perform various simplifying transformations
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to the code. (E.g. changing a pc-relative jump to a PLT entry
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into a pc-relative jump to the target function.) That test, which
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is often relatively complex, and someplaces wrong or incomplete,
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should really be replaced by a predicate in elflink.c.
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End result: this field -1 does not indicate that the symbol is
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not in the dynamic symbol table, but rather that the symbol is
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not visible outside this DSO. */
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long dynindx;
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/* String table index in .dynstr if this is a dynamic symbol. */
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unsigned long dynstr_index;
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/* If this is a weak defined symbol from a dynamic object, this
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field points to a defined symbol with the same value, if there is
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one. Otherwise it is NULL. */
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struct elf_link_hash_entry *weakdef;
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/* If this symbol requires an entry in the global offset table, the
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processor specific backend uses this field to track usage and
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final offset. We use a union and two names primarily to document
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the intent of any particular piece of code. The field should be
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used as a count until size_dynamic_sections, at which point the
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contents of the .got is fixed. Afterward, if this field is -1,
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then the symbol does not require a global offset table entry. */
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union
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{
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bfd_signed_vma refcount;
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bfd_vma offset;
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} got;
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/* Same, but tracks a procedure linkage table entry. */
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union
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{
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bfd_signed_vma refcount;
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bfd_vma offset;
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} plt;
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/* If this symbol is used in the linker created sections, the processor
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specific backend uses this field to map the field into the offset
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from the beginning of the section. */
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struct elf_linker_section_pointers *linker_section_pointer;
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/* Version information. */
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union
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{
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/* This field is used for a symbol which is not defined in a
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regular object. It points to the version information read in
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from the dynamic object. */
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Elf_Internal_Verdef *verdef;
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/* This field is used for a symbol which is defined in a regular
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object. It is set up in size_dynamic_sections. It points to
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the version information we should write out for this symbol. */
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struct bfd_elf_version_tree *vertree;
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} verinfo;
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/* Virtual table entry use information. This array is nominally of size
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size/sizeof(target_void_pointer), though we have to be able to assume
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and track a size while the symbol is still undefined. It is indexed
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via offset/sizeof(target_void_pointer). */
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size_t vtable_entries_size;
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boolean *vtable_entries_used;
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/* Virtual table derivation info. */
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struct elf_link_hash_entry *vtable_parent;
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/* Symbol type (STT_NOTYPE, STT_OBJECT, etc.). */
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char type;
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/* Symbol st_other value, symbol visibility. */
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unsigned char other;
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/* Hash value of the name computed using the ELF hash function. */
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unsigned long elf_hash_value;
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/* Some flags; legal values follow. */
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unsigned short elf_link_hash_flags;
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/* Symbol is referenced by a non-shared object. */
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#define ELF_LINK_HASH_REF_REGULAR 01
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/* Symbol is defined by a non-shared object. */
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#define ELF_LINK_HASH_DEF_REGULAR 02
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/* Symbol is referenced by a shared object. */
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#define ELF_LINK_HASH_REF_DYNAMIC 04
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/* Symbol is defined by a shared object. */
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#define ELF_LINK_HASH_DEF_DYNAMIC 010
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/* Symbol has a non-weak reference from a non-shared object. */
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#define ELF_LINK_HASH_REF_REGULAR_NONWEAK 020
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/* Dynamic symbol has been adjustd. */
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#define ELF_LINK_HASH_DYNAMIC_ADJUSTED 040
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/* Symbol needs a copy reloc. */
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#define ELF_LINK_HASH_NEEDS_COPY 0100
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/* Symbol needs a procedure linkage table entry. */
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#define ELF_LINK_HASH_NEEDS_PLT 0200
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/* Symbol appears in a non-ELF input file. */
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#define ELF_LINK_NON_ELF 0400
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/* Symbol should be marked as hidden in the version information. */
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#define ELF_LINK_HIDDEN 01000
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/* Symbol was forced to local scope due to a version script file. */
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#define ELF_LINK_FORCED_LOCAL 02000
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/* Symbol was marked during garbage collection. */
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#define ELF_LINK_HASH_MARK 04000
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/* Symbol is referenced by a non-GOT/non-PLT relocation. This is
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not currently set by all the backends. */
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#define ELF_LINK_NON_GOT_REF 010000
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};
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/* Records local symbols to be emitted in the dynamic symbol table. */
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struct elf_link_local_dynamic_entry
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{
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struct elf_link_local_dynamic_entry *next;
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/* The input bfd this symbol came from. */
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bfd *input_bfd;
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/* The index of the local symbol being copied. */
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long input_indx;
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/* The index in the outgoing dynamic symbol table. */
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long dynindx;
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/* A copy of the input symbol. */
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Elf_Internal_Sym isym;
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};
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/* ELF linker hash table. */
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struct elf_link_hash_table
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{
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struct bfd_link_hash_table root;
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/* Whether we have created the special dynamic sections required
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when linking against or generating a shared object. */
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boolean dynamic_sections_created;
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/* The BFD used to hold special sections created by the linker.
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This will be the first BFD found which requires these sections to
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be created. */
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bfd *dynobj;
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/* The number of symbols found in the link which must be put into
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the .dynsym section. */
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bfd_size_type dynsymcount;
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/* The string table of dynamic symbols, which becomes the .dynstr
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section. */
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struct bfd_strtab_hash *dynstr;
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/* The number of buckets in the hash table in the .hash section.
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This is based on the number of dynamic symbols. */
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bfd_size_type bucketcount;
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/* A linked list of DT_NEEDED names found in dynamic objects
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included in the link. */
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struct bfd_link_needed_list *needed;
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/* The _GLOBAL_OFFSET_TABLE_ symbol. */
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struct elf_link_hash_entry *hgot;
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/* A pointer to information used to link stabs in sections. */
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PTR stab_info;
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/* A pointer to information used to merge SEC_MERGE sections. */
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PTR merge_info;
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/* A linked list of local symbols to be added to .dynsym. */
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struct elf_link_local_dynamic_entry *dynlocal;
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/* A linked list of DT_RPATH/DT_RUNPATH names found in dynamic
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objects included in the link. */
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struct bfd_link_needed_list *runpath;
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};
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/* Look up an entry in an ELF linker hash table. */
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#define elf_link_hash_lookup(table, string, create, copy, follow) \
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((struct elf_link_hash_entry *) \
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bfd_link_hash_lookup (&(table)->root, (string), (create), \
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(copy), (follow)))
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/* Traverse an ELF linker hash table. */
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#define elf_link_hash_traverse(table, func, info) \
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(bfd_link_hash_traverse \
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(&(table)->root, \
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(boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func), \
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(info)))
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/* Get the ELF linker hash table from a link_info structure. */
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#define elf_hash_table(p) ((struct elf_link_hash_table *) ((p)->hash))
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/* Constant information held for an ELF backend. */
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struct elf_size_info {
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unsigned char sizeof_ehdr, sizeof_phdr, sizeof_shdr;
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unsigned char sizeof_rel, sizeof_rela, sizeof_sym, sizeof_dyn, sizeof_note;
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/* The size of entries in the .hash section. */
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unsigned char sizeof_hash_entry;
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/* The number of internal relocations to allocate per external
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relocation entry. */
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unsigned char int_rels_per_ext_rel;
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unsigned char arch_size, file_align;
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unsigned char elfclass, ev_current;
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int (*write_out_phdrs) PARAMS ((bfd *, const Elf_Internal_Phdr *, int));
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boolean (*write_shdrs_and_ehdr) PARAMS ((bfd *));
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void (*write_relocs) PARAMS ((bfd *, asection *, PTR));
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void (*swap_symbol_out) PARAMS ((bfd *, const Elf_Internal_Sym *, PTR));
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boolean (*slurp_reloc_table)
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PARAMS ((bfd *, asection *, asymbol **, boolean));
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long (*slurp_symbol_table) PARAMS ((bfd *, asymbol **, boolean));
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void (*swap_dyn_in) PARAMS ((bfd *, const PTR, Elf_Internal_Dyn *));
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void (*swap_dyn_out) PARAMS ((bfd *, const Elf_Internal_Dyn *, PTR));
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/* This function, if defined, is called to swap in a REL
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relocation. If an external relocation corresponds to more than
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one internal relocation, then all relocations are swapped in at
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once. */
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void (*swap_reloc_in)
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PARAMS ((bfd *, const bfd_byte *, Elf_Internal_Rel *));
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/* This function, if defined, is called to swap out a REL
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relocation. */
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void (*swap_reloc_out)
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PARAMS ((bfd *, const Elf_Internal_Rel *, bfd_byte *));
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/* This function, if defined, is called to swap in a RELA
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relocation. If an external relocation corresponds to more than
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one internal relocation, then all relocations are swapped in at
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once. */
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void (*swap_reloca_in)
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PARAMS ((bfd *, const bfd_byte *, Elf_Internal_Rela *));
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/* This function, if defined, is called to swap out a RELA
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relocation. */
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void (*swap_reloca_out)
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PARAMS ((bfd *, const Elf_Internal_Rela *, bfd_byte *));
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};
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#define elf_symbol_from(ABFD,S) \
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(((S)->the_bfd->xvec->flavour == bfd_target_elf_flavour \
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&& (S)->the_bfd->tdata.elf_obj_data != 0) \
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? (elf_symbol_type *) (S) \
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: 0)
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struct elf_backend_data
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{
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/* The architecture for this backend. */
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enum bfd_architecture arch;
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/* The ELF machine code (EM_xxxx) for this backend. */
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int elf_machine_code;
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/* The maximum page size for this backend. */
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bfd_vma maxpagesize;
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/* A function to translate an ELF RELA relocation to a BFD arelent
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structure. */
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void (*elf_info_to_howto) PARAMS ((bfd *, arelent *,
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Elf_Internal_Rela *));
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/* A function to translate an ELF REL relocation to a BFD arelent
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structure. */
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void (*elf_info_to_howto_rel) PARAMS ((bfd *, arelent *,
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Elf_Internal_Rel *));
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/* A function to determine whether a symbol is global when
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partitioning the symbol table into local and global symbols.
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This should be NULL for most targets, in which case the correct
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thing will be done. MIPS ELF, at least on the Irix 5, has
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special requirements. */
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boolean (*elf_backend_sym_is_global) PARAMS ((bfd *, asymbol *));
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/* The remaining functions are hooks which are called only if they
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are not NULL. */
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/* A function to permit a backend specific check on whether a
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particular BFD format is relevant for an object file, and to
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permit the backend to set any global information it wishes. When
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this is called elf_elfheader is set, but anything else should be
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used with caution. If this returns false, the check_format
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routine will return a bfd_error_wrong_format error. */
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boolean (*elf_backend_object_p) PARAMS ((bfd *));
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/* A function to do additional symbol processing when reading the
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ELF symbol table. This is where any processor-specific special
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section indices are handled. */
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void (*elf_backend_symbol_processing) PARAMS ((bfd *, asymbol *));
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/* A function to do additional symbol processing after reading the
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entire ELF symbol table. */
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boolean (*elf_backend_symbol_table_processing) PARAMS ((bfd *,
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elf_symbol_type *,
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unsigned int));
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/* A function to set the type of the info field. Processor-specific
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types should be handled here. */
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int (*elf_backend_get_symbol_type) PARAMS (( Elf_Internal_Sym *, int));
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/* A function to do additional processing on the ELF section header
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just before writing it out. This is used to set the flags and
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type fields for some sections, or to actually write out data for
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unusual sections. */
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boolean (*elf_backend_section_processing) PARAMS ((bfd *,
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Elf32_Internal_Shdr *));
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/* A function to handle unusual section types when creating BFD
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sections from ELF sections. */
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boolean (*elf_backend_section_from_shdr) PARAMS ((bfd *,
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Elf32_Internal_Shdr *,
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char *));
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/* A function to convert machine dependent section header flags to
|
||
BFD internal section header flags. */
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boolean (*elf_backend_section_flags) PARAMS ((flagword *,
|
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Elf32_Internal_Shdr *));
|
||
|
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/* A function to handle unusual program segment types when creating BFD
|
||
sections from ELF program segments. */
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boolean (*elf_backend_section_from_phdr) PARAMS ((bfd *,
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Elf32_Internal_Phdr *,
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int));
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|
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/* A function to set up the ELF section header for a BFD section in
|
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preparation for writing it out. This is where the flags and type
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fields are set for unusual sections. */
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boolean (*elf_backend_fake_sections) PARAMS ((bfd *, Elf32_Internal_Shdr *,
|
||
asection *));
|
||
|
||
/* A function to get the ELF section index for a BFD section. If
|
||
this returns true, the section was found. If it is a normal ELF
|
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section, *RETVAL should be left unchanged. If it is not a normal
|
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ELF section *RETVAL should be set to the SHN_xxxx index. */
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||
boolean (*elf_backend_section_from_bfd_section)
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PARAMS ((bfd *, Elf32_Internal_Shdr *, asection *, int *retval));
|
||
|
||
/* If this field is not NULL, it is called by the add_symbols phase
|
||
of a link just before adding a symbol to the global linker hash
|
||
table. It may modify any of the fields as it wishes. If *NAME
|
||
is set to NULL, the symbol will be skipped rather than being
|
||
added to the hash table. This function is responsible for
|
||
handling all processor dependent symbol bindings and section
|
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indices, and must set at least *FLAGS and *SEC for each processor
|
||
dependent case; failure to do so will cause a link error. */
|
||
boolean (*elf_add_symbol_hook)
|
||
PARAMS ((bfd *abfd, struct bfd_link_info *info,
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||
const Elf_Internal_Sym *, const char **name,
|
||
flagword *flags, asection **sec, bfd_vma *value));
|
||
|
||
/* If this field is not NULL, it is called by the elf_link_output_sym
|
||
phase of a link for each symbol which will appear in the object file. */
|
||
boolean (*elf_backend_link_output_symbol_hook)
|
||
PARAMS ((bfd *, struct bfd_link_info *info, const char *,
|
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Elf_Internal_Sym *, asection *));
|
||
|
||
/* The CREATE_DYNAMIC_SECTIONS function is called by the ELF backend
|
||
linker the first time it encounters a dynamic object in the link.
|
||
This function must create any sections required for dynamic
|
||
linking. The ABFD argument is a dynamic object. The .interp,
|
||
.dynamic, .dynsym, .dynstr, and .hash functions have already been
|
||
created, and this function may modify the section flags if
|
||
desired. This function will normally create the .got and .plt
|
||
sections, but different backends have different requirements. */
|
||
boolean (*elf_backend_create_dynamic_sections)
|
||
PARAMS ((bfd *abfd, struct bfd_link_info *info));
|
||
|
||
/* The CHECK_RELOCS function is called by the add_symbols phase of
|
||
the ELF backend linker. It is called once for each section with
|
||
relocs of an object file, just after the symbols for the object
|
||
file have been added to the global linker hash table. The
|
||
function must look through the relocs and do any special handling
|
||
required. This generally means allocating space in the global
|
||
offset table, and perhaps allocating space for a reloc. The
|
||
relocs are always passed as Rela structures; if the section
|
||
actually uses Rel structures, the r_addend field will always be
|
||
zero. */
|
||
boolean (*check_relocs)
|
||
PARAMS ((bfd *abfd, struct bfd_link_info *info, asection *o,
|
||
const Elf_Internal_Rela *relocs));
|
||
|
||
/* The ADJUST_DYNAMIC_SYMBOL function is called by the ELF backend
|
||
linker for every symbol which is defined by a dynamic object and
|
||
referenced by a regular object. This is called after all the
|
||
input files have been seen, but before the SIZE_DYNAMIC_SECTIONS
|
||
function has been called. The hash table entry should be
|
||
bfd_link_hash_defined ore bfd_link_hash_defweak, and it should be
|
||
defined in a section from a dynamic object. Dynamic object
|
||
sections are not included in the final link, and this function is
|
||
responsible for changing the value to something which the rest of
|
||
the link can deal with. This will normally involve adding an
|
||
entry to the .plt or .got or some such section, and setting the
|
||
symbol to point to that. */
|
||
boolean (*elf_backend_adjust_dynamic_symbol)
|
||
PARAMS ((struct bfd_link_info *info, struct elf_link_hash_entry *h));
|
||
|
||
/* The ALWAYS_SIZE_SECTIONS function is called by the backend linker
|
||
after all the linker input files have been seen but before the
|
||
section sizes have been set. This is called after
|
||
ADJUST_DYNAMIC_SYMBOL, but before SIZE_DYNAMIC_SECTIONS. */
|
||
boolean (*elf_backend_always_size_sections)
|
||
PARAMS ((bfd *output_bfd, struct bfd_link_info *info));
|
||
|
||
/* The SIZE_DYNAMIC_SECTIONS function is called by the ELF backend
|
||
linker after all the linker input files have been seen but before
|
||
the sections sizes have been set. This is called after
|
||
ADJUST_DYNAMIC_SYMBOL has been called on all appropriate symbols.
|
||
It is only called when linking against a dynamic object. It must
|
||
set the sizes of the dynamic sections, and may fill in their
|
||
contents as well. The generic ELF linker can handle the .dynsym,
|
||
.dynstr and .hash sections. This function must handle the
|
||
.interp section and any sections created by the
|
||
CREATE_DYNAMIC_SECTIONS entry point. */
|
||
boolean (*elf_backend_size_dynamic_sections)
|
||
PARAMS ((bfd *output_bfd, struct bfd_link_info *info));
|
||
|
||
/* The RELOCATE_SECTION function is called by the ELF backend linker
|
||
to handle the relocations for a section.
|
||
|
||
The relocs are always passed as Rela structures; if the section
|
||
actually uses Rel structures, the r_addend field will always be
|
||
zero.
|
||
|
||
This function is responsible for adjust the section contents as
|
||
necessary, and (if using Rela relocs and generating a
|
||
relocateable output file) adjusting the reloc addend as
|
||
necessary.
|
||
|
||
This function does not have to worry about setting the reloc
|
||
address or the reloc symbol index.
|
||
|
||
LOCAL_SYMS is a pointer to the swapped in local symbols.
|
||
|
||
LOCAL_SECTIONS is an array giving the section in the input file
|
||
corresponding to the st_shndx field of each local symbol.
|
||
|
||
The global hash table entry for the global symbols can be found
|
||
via elf_sym_hashes (input_bfd).
|
||
|
||
When generating relocateable output, this function must handle
|
||
STB_LOCAL/STT_SECTION symbols specially. The output symbol is
|
||
going to be the section symbol corresponding to the output
|
||
section, which means that the addend must be adjusted
|
||
accordingly. */
|
||
boolean (*elf_backend_relocate_section)
|
||
PARAMS ((bfd *output_bfd, struct bfd_link_info *info,
|
||
bfd *input_bfd, asection *input_section, bfd_byte *contents,
|
||
Elf_Internal_Rela *relocs, Elf_Internal_Sym *local_syms,
|
||
asection **local_sections));
|
||
|
||
/* The FINISH_DYNAMIC_SYMBOL function is called by the ELF backend
|
||
linker just before it writes a symbol out to the .dynsym section.
|
||
The processor backend may make any required adjustment to the
|
||
symbol. It may also take the opportunity to set contents of the
|
||
dynamic sections. Note that FINISH_DYNAMIC_SYMBOL is called on
|
||
all .dynsym symbols, while ADJUST_DYNAMIC_SYMBOL is only called
|
||
on those symbols which are defined by a dynamic object. */
|
||
boolean (*elf_backend_finish_dynamic_symbol)
|
||
PARAMS ((bfd *output_bfd, struct bfd_link_info *info,
|
||
struct elf_link_hash_entry *h, Elf_Internal_Sym *sym));
|
||
|
||
/* The FINISH_DYNAMIC_SECTIONS function is called by the ELF backend
|
||
linker just before it writes all the dynamic sections out to the
|
||
output file. The FINISH_DYNAMIC_SYMBOL will have been called on
|
||
all dynamic symbols. */
|
||
boolean (*elf_backend_finish_dynamic_sections)
|
||
PARAMS ((bfd *output_bfd, struct bfd_link_info *info));
|
||
|
||
/* A function to do any beginning processing needed for the ELF file
|
||
before building the ELF headers and computing file positions. */
|
||
void (*elf_backend_begin_write_processing)
|
||
PARAMS ((bfd *, struct bfd_link_info *));
|
||
|
||
/* A function to do any final processing needed for the ELF file
|
||
before writing it out. The LINKER argument is true if this BFD
|
||
was created by the ELF backend linker. */
|
||
void (*elf_backend_final_write_processing)
|
||
PARAMS ((bfd *, boolean linker));
|
||
|
||
/* This function is called by get_program_header_size. It should
|
||
return the number of additional program segments which this BFD
|
||
will need. It should return -1 on error. */
|
||
int (*elf_backend_additional_program_headers) PARAMS ((bfd *));
|
||
|
||
/* This function is called to modify an existing segment map in a
|
||
backend specific fashion. */
|
||
boolean (*elf_backend_modify_segment_map) PARAMS ((bfd *));
|
||
|
||
/* This function is called during section gc to discover the section a
|
||
particular relocation refers to. It need not be defined for hosts
|
||
that have no queer relocation types. */
|
||
asection * (*gc_mark_hook)
|
||
PARAMS ((bfd *abfd, struct bfd_link_info *, Elf_Internal_Rela *,
|
||
struct elf_link_hash_entry *h, Elf_Internal_Sym *));
|
||
|
||
/* This function, if defined, is called during the sweep phase of gc
|
||
in order that a backend might update any data structures it might
|
||
be maintaining. */
|
||
boolean (*gc_sweep_hook)
|
||
PARAMS ((bfd *abfd, struct bfd_link_info *info, asection *o,
|
||
const Elf_Internal_Rela *relocs));
|
||
|
||
/* This function, if defined, is called after the ELF headers have
|
||
been created. This allows for things like the OS and ABI versions
|
||
to be changed. */
|
||
void (*elf_backend_post_process_headers)
|
||
PARAMS ((bfd *, struct bfd_link_info *));
|
||
|
||
/* This function, if defined, prints a symbol to file and returns the
|
||
name of the symbol to be printed. It should return NULL to fall
|
||
back to default symbol printing. */
|
||
const char *(*elf_backend_print_symbol_all)
|
||
PARAMS ((bfd *, PTR, asymbol *));
|
||
|
||
/* This function, if defined, is called after all local symbols and
|
||
global symbols converted to locals are emited into the symtab
|
||
section. It allows the backend to emit special global symbols
|
||
not handled in the hash table. */
|
||
boolean (*elf_backend_output_arch_syms)
|
||
PARAMS ((bfd *, struct bfd_link_info *, PTR,
|
||
boolean (*) PARAMS ((PTR, const char *,
|
||
Elf_Internal_Sym *, asection *))));
|
||
|
||
/* Copy any information related to dynamic linking from a pre-existing
|
||
symbol IND to a newly created symbol DIR. */
|
||
void (*elf_backend_copy_indirect_symbol)
|
||
PARAMS ((struct elf_link_hash_entry *, struct elf_link_hash_entry *));
|
||
|
||
/* Modify any information related to dynamic linking such that the
|
||
symbol is not exported. */
|
||
void (*elf_backend_hide_symbol)
|
||
PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
|
||
|
||
/* Emit relocations. Overrides default routine for emitting relocs,
|
||
except during a relocatable link, or if all relocs are being emitted. */
|
||
void (*elf_backend_emit_relocs)
|
||
PARAMS ((bfd *, asection *, Elf_Internal_Shdr *, Elf_Internal_Rela *));
|
||
|
||
/* Count relocations. Not called for relocatable links
|
||
or if all relocs are being preserved in the output. */
|
||
unsigned int (*elf_backend_count_relocs)
|
||
PARAMS ((asection *, Elf_Internal_Rela *));
|
||
|
||
/* This function, if defined, is called when an NT_PRSTATUS note is found
|
||
in a core file. */
|
||
boolean (*elf_backend_grok_prstatus) PARAMS ((bfd *, Elf_Internal_Note *));
|
||
|
||
/* This function, if defined, is called when an NT_PSINFO or NT_PRPSINFO
|
||
note is found in a core file. */
|
||
boolean (*elf_backend_grok_psinfo) PARAMS ((bfd *, Elf_Internal_Note *));
|
||
|
||
/* Functions to print VMAs. Special code to handle 64 bit ELF files. */
|
||
void (* elf_backend_sprintf_vma) PARAMS ((bfd *, char *, bfd_vma));
|
||
void (* elf_backend_fprintf_vma) PARAMS ((bfd *, PTR, bfd_vma));
|
||
|
||
/* The swapping table to use when dealing with ECOFF information.
|
||
Used for the MIPS ELF .mdebug section. */
|
||
const struct ecoff_debug_swap *elf_backend_ecoff_debug_swap;
|
||
|
||
/* Alternate EM_xxxx machine codes for this backend. */
|
||
int elf_machine_alt1;
|
||
int elf_machine_alt2;
|
||
|
||
const struct elf_size_info *s;
|
||
|
||
/* offset of the _GLOBAL_OFFSET_TABLE_ symbol from the start of the
|
||
.got section */
|
||
bfd_vma got_symbol_offset;
|
||
|
||
/* The size in bytes of the headers for the GOT and PLT. This includes
|
||
the so-called reserved entries on some systems. */
|
||
bfd_vma got_header_size;
|
||
bfd_vma plt_header_size;
|
||
|
||
/* This is true if the linker should act like collect and gather
|
||
global constructors and destructors by name. This is true for
|
||
MIPS ELF because the Irix 5 tools can not handle the .init
|
||
section. */
|
||
unsigned collect : 1;
|
||
|
||
/* This is true if the linker should ignore changes to the type of a
|
||
symbol. This is true for MIPS ELF because some Irix 5 objects
|
||
record undefined functions as STT_OBJECT although the definitions
|
||
are STT_FUNC. */
|
||
unsigned type_change_ok : 1;
|
||
|
||
/* Whether the backend may use REL relocations. (Some backends use
|
||
both REL and RELA relocations, and this flag is set for those
|
||
backends.) */
|
||
unsigned may_use_rel_p : 1;
|
||
|
||
/* Whether the backend may use RELA relocations. (Some backends use
|
||
both REL and RELA relocations, and this flag is set for those
|
||
backends.) */
|
||
unsigned may_use_rela_p : 1;
|
||
|
||
/* Whether the default relocation type is RELA. If a backend with
|
||
this flag set wants REL relocations for a particular section,
|
||
it must note that explicitly. Similarly, if this flag is clear,
|
||
and the backend wants RELA relocations for a particular
|
||
section. */
|
||
unsigned default_use_rela_p : 1;
|
||
|
||
/* True if addresses "naturally" sign extend. This is used when
|
||
swapping in from Elf32 when BFD64. */
|
||
unsigned sign_extend_vma : 1;
|
||
|
||
unsigned want_got_plt : 1;
|
||
unsigned plt_readonly : 1;
|
||
unsigned want_plt_sym : 1;
|
||
unsigned plt_not_loaded : 1;
|
||
unsigned plt_alignment : 4;
|
||
unsigned can_gc_sections : 1;
|
||
unsigned want_got_sym : 1;
|
||
unsigned want_dynbss : 1;
|
||
};
|
||
|
||
/* Information stored for each BFD section in an ELF file. This
|
||
structure is allocated by elf_new_section_hook. */
|
||
|
||
struct bfd_elf_section_data
|
||
{
|
||
/* The ELF header for this section. */
|
||
Elf_Internal_Shdr this_hdr;
|
||
/* The ELF header for the reloc section associated with this
|
||
section, if any. */
|
||
Elf_Internal_Shdr rel_hdr;
|
||
/* If there is a second reloc section associated with this section,
|
||
as can happen on Irix 6, this field points to the header. */
|
||
Elf_Internal_Shdr *rel_hdr2;
|
||
/* The number of relocations currently assigned to REL_HDR. */
|
||
unsigned int rel_count;
|
||
/* The number of relocations currently assigned to REL_HDR2. */
|
||
unsigned int rel_count2;
|
||
/* The ELF section number of this section. Only used for an output
|
||
file. */
|
||
int this_idx;
|
||
/* The ELF section number of the reloc section indicated by
|
||
REL_HDR if any. Only used for an output file. */
|
||
int rel_idx;
|
||
/* The ELF section number of the reloc section indicated by
|
||
REL_HDR2 if any. Only used for an output file. */
|
||
int rel_idx2;
|
||
/* Used by the backend linker to store the symbol hash table entries
|
||
associated with relocs against global symbols. */
|
||
struct elf_link_hash_entry **rel_hashes;
|
||
/* A pointer to the swapped relocs. If the section uses REL relocs,
|
||
rather than RELA, all the r_addend fields will be zero. This
|
||
pointer may be NULL. It is used by the backend linker. */
|
||
Elf_Internal_Rela *relocs;
|
||
/* Used by the backend linker when generating a shared library to
|
||
record the dynamic symbol index for a section symbol
|
||
corresponding to this section. A value of 0 means that there is
|
||
no dynamic symbol for this section. */
|
||
long dynindx;
|
||
/* A pointer used for .stab linking optimizations. */
|
||
PTR stab_info;
|
||
/* A pointer used for SEC_MERGE optimizations. */
|
||
PTR merge_info;
|
||
/* A pointer available for the processor specific ELF backend. */
|
||
PTR tdata;
|
||
/* Nonzero if this section uses RELA relocations, rather than REL. */
|
||
unsigned int use_rela_p:1;
|
||
};
|
||
|
||
#define elf_section_data(sec) ((struct bfd_elf_section_data*)sec->used_by_bfd)
|
||
|
||
#define get_elf_backend_data(abfd) \
|
||
((struct elf_backend_data *) (abfd)->xvec->backend_data)
|
||
|
||
/* Enumeration to specify the special section. */
|
||
typedef enum elf_linker_section_enum
|
||
{
|
||
LINKER_SECTION_UNKNOWN, /* not used */
|
||
LINKER_SECTION_GOT, /* .got section for global offset pointers */
|
||
LINKER_SECTION_PLT, /* .plt section for generated procedure stubs */
|
||
LINKER_SECTION_SDATA, /* .sdata/.sbss section for PowerPC */
|
||
LINKER_SECTION_SDATA2, /* .sdata2/.sbss2 section for PowerPC */
|
||
LINKER_SECTION_MAX /* # of linker sections */
|
||
} elf_linker_section_enum_t;
|
||
|
||
/* Sections created by the linker. */
|
||
|
||
typedef struct elf_linker_section
|
||
{
|
||
char *name; /* name of the section */
|
||
char *rel_name; /* name of the associated .rel{,a}. section */
|
||
char *bss_name; /* name of a related .bss section */
|
||
char *sym_name; /* name of symbol to reference this section */
|
||
asection *section; /* pointer to the section */
|
||
asection *bss_section; /* pointer to the bss section associated with this */
|
||
asection *rel_section; /* pointer to the relocations needed for this section */
|
||
struct elf_link_hash_entry *sym_hash; /* pointer to the created symbol hash value */
|
||
bfd_vma initial_size; /* initial size before any linker generated allocations */
|
||
bfd_vma sym_offset; /* offset of symbol from beginning of section */
|
||
bfd_vma hole_size; /* size of reserved address hole in allocation */
|
||
bfd_vma hole_offset; /* current offset for the hole */
|
||
bfd_vma max_hole_offset; /* maximum offset for the hole */
|
||
elf_linker_section_enum_t which; /* which section this is */
|
||
boolean hole_written_p; /* whether the hole has been initialized */
|
||
unsigned int alignment; /* alignment for the section */
|
||
flagword flags; /* flags to use to create the section */
|
||
} elf_linker_section_t;
|
||
|
||
/* Linked list of allocated pointer entries. This hangs off of the symbol lists, and
|
||
provides allows us to return different pointers, based on different addend's. */
|
||
|
||
typedef struct elf_linker_section_pointers
|
||
{
|
||
struct elf_linker_section_pointers *next; /* next allocated pointer for this symbol */
|
||
bfd_vma offset; /* offset of pointer from beginning of section */
|
||
bfd_signed_vma addend; /* addend used */
|
||
elf_linker_section_enum_t which; /* which linker section this is */
|
||
boolean written_address_p; /* whether address was written yet */
|
||
} elf_linker_section_pointers_t;
|
||
|
||
/* Some private data is stashed away for future use using the tdata pointer
|
||
in the bfd structure. */
|
||
|
||
struct elf_obj_tdata
|
||
{
|
||
Elf_Internal_Ehdr elf_header[1]; /* Actual data, but ref like ptr */
|
||
Elf_Internal_Shdr **elf_sect_ptr;
|
||
Elf_Internal_Phdr *phdr;
|
||
struct elf_segment_map *segment_map;
|
||
struct bfd_strtab_hash *strtab_ptr;
|
||
int num_locals;
|
||
int num_globals;
|
||
asymbol **section_syms; /* STT_SECTION symbols for each section */
|
||
Elf_Internal_Shdr symtab_hdr;
|
||
Elf_Internal_Shdr shstrtab_hdr;
|
||
Elf_Internal_Shdr strtab_hdr;
|
||
Elf_Internal_Shdr dynsymtab_hdr;
|
||
Elf_Internal_Shdr dynstrtab_hdr;
|
||
Elf_Internal_Shdr dynversym_hdr;
|
||
Elf_Internal_Shdr dynverref_hdr;
|
||
Elf_Internal_Shdr dynverdef_hdr;
|
||
unsigned int symtab_section, shstrtab_section;
|
||
unsigned int strtab_section, dynsymtab_section;
|
||
unsigned int dynversym_section, dynverdef_section, dynverref_section;
|
||
file_ptr next_file_pos;
|
||
#if 0
|
||
/* we don't need these inside bfd anymore, and I think
|
||
these weren't used outside bfd. */
|
||
void *prstatus; /* The raw /proc prstatus structure */
|
||
void *prpsinfo; /* The raw /proc prpsinfo structure */
|
||
#endif
|
||
bfd_vma gp; /* The gp value (MIPS only, for now) */
|
||
unsigned int gp_size; /* The gp size (MIPS only, for now) */
|
||
|
||
/* Information grabbed from an elf core file. */
|
||
int core_signal;
|
||
int core_pid;
|
||
int core_lwpid;
|
||
char* core_program;
|
||
char* core_command;
|
||
|
||
/* This is set to true if the object was created by the backend
|
||
linker. */
|
||
boolean linker;
|
||
|
||
/* A mapping from external symbols to entries in the linker hash
|
||
table, used when linking. This is indexed by the symbol index
|
||
minus the sh_info field of the symbol table header. */
|
||
struct elf_link_hash_entry **sym_hashes;
|
||
|
||
/* A mapping from local symbols to offsets into the global offset
|
||
table, used when linking. This is indexed by the symbol index.
|
||
Like for the globals, we use a union and two names primarily to
|
||
document the intent of any particular piece of code. The field
|
||
should be used as a count until size_dynamic_sections, at which
|
||
point the contents of the .got is fixed. Afterward, if an entry
|
||
is -1, then the symbol does not require a global offset table entry. */
|
||
union
|
||
{
|
||
bfd_signed_vma *refcounts;
|
||
bfd_vma *offsets;
|
||
} local_got;
|
||
|
||
/* A mapping from local symbols to offsets into the various linker
|
||
sections added. This is index by the symbol index. */
|
||
elf_linker_section_pointers_t **linker_section_pointers;
|
||
|
||
/* The linker ELF emulation code needs to let the backend ELF linker
|
||
know what filename should be used for a dynamic object if the
|
||
dynamic object is found using a search. The emulation code then
|
||
sometimes needs to know what name was actually used. Until the
|
||
file has been added to the linker symbol table, this field holds
|
||
the name the linker wants. After it has been added, it holds the
|
||
name actually used, which will be the DT_SONAME entry if there is
|
||
one. */
|
||
const char *dt_name;
|
||
|
||
/* When a reference in a regular object is resolved by a shared
|
||
object is loaded into via the DT_NEEDED entries by the linker
|
||
ELF emulation code, we need to add the shared object to the
|
||
DT_NEEDED list of the resulting binary to indicate the dependency
|
||
as if the -l option is passed to the linker. This field holds the
|
||
name of the loaded shared object. */
|
||
const char *dt_soname;
|
||
|
||
/* Irix 5 often screws up the symbol table, sorting local symbols
|
||
after global symbols. This flag is set if the symbol table in
|
||
this BFD appears to be screwed up. If it is, we ignore the
|
||
sh_info field in the symbol table header, and always read all the
|
||
symbols. */
|
||
boolean bad_symtab;
|
||
|
||
/* Records the result of `get_program_header_size'. */
|
||
bfd_size_type program_header_size;
|
||
|
||
/* Used by find_nearest_line entry point. */
|
||
PTR line_info;
|
||
|
||
/* Used by MIPS ELF find_nearest_line entry point. The structure
|
||
could be included directly in this one, but there's no point to
|
||
wasting the memory just for the infrequently called
|
||
find_nearest_line. */
|
||
struct mips_elf_find_line *find_line_info;
|
||
|
||
/* A place to stash dwarf1 info for this bfd. */
|
||
struct dwarf1_debug *dwarf1_find_line_info;
|
||
|
||
/* A place to stash dwarf2 info for this bfd. */
|
||
PTR dwarf2_find_line_info;
|
||
|
||
/* An array of stub sections indexed by symbol number, used by the
|
||
MIPS ELF linker. FIXME: We should figure out some way to only
|
||
include this field for a MIPS ELF target. */
|
||
asection **local_stubs;
|
||
|
||
/* Used to determine if the e_flags field has been initialized */
|
||
boolean flags_init;
|
||
|
||
/* Number of symbol version definitions we are about to emit. */
|
||
unsigned int cverdefs;
|
||
|
||
/* Number of symbol version references we are about to emit. */
|
||
unsigned int cverrefs;
|
||
|
||
/* Symbol version definitions in external objects. */
|
||
Elf_Internal_Verdef *verdef;
|
||
|
||
/* Symbol version references to external objects. */
|
||
Elf_Internal_Verneed *verref;
|
||
|
||
/* Linker sections that we are interested in. */
|
||
struct elf_linker_section *linker_section[ (int)LINKER_SECTION_MAX ];
|
||
|
||
/* The Irix 5 support uses two virtual sections, which represent
|
||
text/data symbols defined in dynamic objects. */
|
||
asymbol *elf_data_symbol;
|
||
asymbol *elf_text_symbol;
|
||
asection *elf_data_section;
|
||
asection *elf_text_section;
|
||
};
|
||
|
||
#define elf_tdata(bfd) ((bfd) -> tdata.elf_obj_data)
|
||
#define elf_elfheader(bfd) (elf_tdata(bfd) -> elf_header)
|
||
#define elf_elfsections(bfd) (elf_tdata(bfd) -> elf_sect_ptr)
|
||
#define elf_shstrtab(bfd) (elf_tdata(bfd) -> strtab_ptr)
|
||
#define elf_onesymtab(bfd) (elf_tdata(bfd) -> symtab_section)
|
||
#define elf_dynsymtab(bfd) (elf_tdata(bfd) -> dynsymtab_section)
|
||
#define elf_dynversym(bfd) (elf_tdata(bfd) -> dynversym_section)
|
||
#define elf_dynverdef(bfd) (elf_tdata(bfd) -> dynverdef_section)
|
||
#define elf_dynverref(bfd) (elf_tdata(bfd) -> dynverref_section)
|
||
#define elf_num_locals(bfd) (elf_tdata(bfd) -> num_locals)
|
||
#define elf_num_globals(bfd) (elf_tdata(bfd) -> num_globals)
|
||
#define elf_section_syms(bfd) (elf_tdata(bfd) -> section_syms)
|
||
#define core_prpsinfo(bfd) (elf_tdata(bfd) -> prpsinfo)
|
||
#define core_prstatus(bfd) (elf_tdata(bfd) -> prstatus)
|
||
#define elf_gp(bfd) (elf_tdata(bfd) -> gp)
|
||
#define elf_gp_size(bfd) (elf_tdata(bfd) -> gp_size)
|
||
#define elf_sym_hashes(bfd) (elf_tdata(bfd) -> sym_hashes)
|
||
#define elf_local_got_refcounts(bfd) (elf_tdata(bfd) -> local_got.refcounts)
|
||
#define elf_local_got_offsets(bfd) (elf_tdata(bfd) -> local_got.offsets)
|
||
#define elf_local_ptr_offsets(bfd) (elf_tdata(bfd) -> linker_section_pointers)
|
||
#define elf_dt_name(bfd) (elf_tdata(bfd) -> dt_name)
|
||
#define elf_dt_soname(bfd) (elf_tdata(bfd) -> dt_soname)
|
||
#define elf_bad_symtab(bfd) (elf_tdata(bfd) -> bad_symtab)
|
||
#define elf_flags_init(bfd) (elf_tdata(bfd) -> flags_init)
|
||
#define elf_linker_section(bfd,n) (elf_tdata(bfd) -> linker_section[(int)n])
|
||
|
||
extern void _bfd_elf_swap_verdef_in
|
||
PARAMS ((bfd *, const Elf_External_Verdef *, Elf_Internal_Verdef *));
|
||
extern void _bfd_elf_swap_verdef_out
|
||
PARAMS ((bfd *, const Elf_Internal_Verdef *, Elf_External_Verdef *));
|
||
extern void _bfd_elf_swap_verdaux_in
|
||
PARAMS ((bfd *, const Elf_External_Verdaux *, Elf_Internal_Verdaux *));
|
||
extern void _bfd_elf_swap_verdaux_out
|
||
PARAMS ((bfd *, const Elf_Internal_Verdaux *, Elf_External_Verdaux *));
|
||
extern void _bfd_elf_swap_verneed_in
|
||
PARAMS ((bfd *, const Elf_External_Verneed *, Elf_Internal_Verneed *));
|
||
extern void _bfd_elf_swap_verneed_out
|
||
PARAMS ((bfd *, const Elf_Internal_Verneed *, Elf_External_Verneed *));
|
||
extern void _bfd_elf_swap_vernaux_in
|
||
PARAMS ((bfd *, const Elf_External_Vernaux *, Elf_Internal_Vernaux *));
|
||
extern void _bfd_elf_swap_vernaux_out
|
||
PARAMS ((bfd *, const Elf_Internal_Vernaux *, Elf_External_Vernaux *));
|
||
extern void _bfd_elf_swap_versym_in
|
||
PARAMS ((bfd *, const Elf_External_Versym *, Elf_Internal_Versym *));
|
||
extern void _bfd_elf_swap_versym_out
|
||
PARAMS ((bfd *, const Elf_Internal_Versym *, Elf_External_Versym *));
|
||
|
||
extern int _bfd_elf_section_from_bfd_section PARAMS ((bfd *, asection *));
|
||
extern char *bfd_elf_string_from_elf_section
|
||
PARAMS ((bfd *, unsigned, unsigned));
|
||
extern char *bfd_elf_get_str_section PARAMS ((bfd *, unsigned));
|
||
|
||
extern boolean _bfd_elf_print_private_bfd_data PARAMS ((bfd *, PTR));
|
||
extern void bfd_elf_print_symbol PARAMS ((bfd *, PTR, asymbol *,
|
||
bfd_print_symbol_type));
|
||
#define elf_string_from_elf_strtab(abfd,strindex) \
|
||
bfd_elf_string_from_elf_section(abfd,elf_elfheader(abfd)->e_shstrndx,strindex)
|
||
|
||
#define bfd_elf32_print_symbol bfd_elf_print_symbol
|
||
#define bfd_elf64_print_symbol bfd_elf_print_symbol
|
||
|
||
extern void _bfd_elf_sprintf_vma PARAMS ((bfd *, char *, bfd_vma));
|
||
extern void _bfd_elf_fprintf_vma PARAMS ((bfd *, PTR, bfd_vma));
|
||
|
||
extern unsigned long bfd_elf_hash PARAMS ((const char *));
|
||
|
||
extern bfd_reloc_status_type bfd_elf_generic_reloc PARAMS ((bfd *,
|
||
arelent *,
|
||
asymbol *,
|
||
PTR,
|
||
asection *,
|
||
bfd *,
|
||
char **));
|
||
extern boolean bfd_elf_mkobject PARAMS ((bfd *));
|
||
extern boolean bfd_elf_mkcorefile PARAMS ((bfd *));
|
||
extern Elf_Internal_Shdr *bfd_elf_find_section PARAMS ((bfd *, char *));
|
||
extern boolean _bfd_elf_make_section_from_shdr
|
||
PARAMS ((bfd *abfd, Elf_Internal_Shdr *hdr, const char *name));
|
||
extern boolean _bfd_elf_make_section_from_phdr
|
||
PARAMS ((bfd *abfd, Elf_Internal_Phdr *hdr, int index, const char *typename));
|
||
extern struct bfd_hash_entry *_bfd_elf_link_hash_newfunc
|
||
PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
|
||
extern struct bfd_link_hash_table *_bfd_elf_link_hash_table_create
|
||
PARAMS ((bfd *));
|
||
extern void _bfd_elf_link_hash_copy_indirect
|
||
PARAMS ((struct elf_link_hash_entry *, struct elf_link_hash_entry *));
|
||
extern void _bfd_elf_link_hash_hide_symbol
|
||
PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
|
||
extern boolean _bfd_elf_link_hash_table_init
|
||
PARAMS ((struct elf_link_hash_table *, bfd *,
|
||
struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
|
||
struct bfd_hash_table *,
|
||
const char *)));
|
||
extern boolean _bfd_elf_slurp_version_tables PARAMS ((bfd *));
|
||
|
||
extern boolean _bfd_elf_merge_sections
|
||
PARAMS ((bfd *, struct bfd_link_info *));
|
||
|
||
extern boolean _bfd_elf_copy_private_symbol_data
|
||
PARAMS ((bfd *, asymbol *, bfd *, asymbol *));
|
||
extern boolean _bfd_elf_copy_private_section_data
|
||
PARAMS ((bfd *, asection *, bfd *, asection *));
|
||
extern boolean _bfd_elf_write_object_contents PARAMS ((bfd *));
|
||
extern boolean _bfd_elf_write_corefile_contents PARAMS ((bfd *));
|
||
extern boolean _bfd_elf_set_section_contents PARAMS ((bfd *, sec_ptr, PTR,
|
||
file_ptr,
|
||
bfd_size_type));
|
||
extern long _bfd_elf_get_symtab_upper_bound PARAMS ((bfd *));
|
||
extern long _bfd_elf_get_symtab PARAMS ((bfd *, asymbol **));
|
||
extern long _bfd_elf_get_dynamic_symtab_upper_bound PARAMS ((bfd *));
|
||
extern long _bfd_elf_canonicalize_dynamic_symtab PARAMS ((bfd *, asymbol **));
|
||
extern long _bfd_elf_get_reloc_upper_bound PARAMS ((bfd *, sec_ptr));
|
||
extern long _bfd_elf_canonicalize_reloc PARAMS ((bfd *, sec_ptr,
|
||
arelent **, asymbol **));
|
||
extern long _bfd_elf_get_dynamic_reloc_upper_bound PARAMS ((bfd *));
|
||
extern long _bfd_elf_canonicalize_dynamic_reloc PARAMS ((bfd *, arelent **,
|
||
asymbol **));
|
||
extern asymbol *_bfd_elf_make_empty_symbol PARAMS ((bfd *));
|
||
extern void _bfd_elf_get_symbol_info PARAMS ((bfd *, asymbol *,
|
||
symbol_info *));
|
||
extern boolean _bfd_elf_is_local_label_name PARAMS ((bfd *, const char *));
|
||
extern alent *_bfd_elf_get_lineno PARAMS ((bfd *, asymbol *));
|
||
extern boolean _bfd_elf_set_arch_mach PARAMS ((bfd *, enum bfd_architecture,
|
||
unsigned long));
|
||
extern boolean _bfd_elf_find_nearest_line PARAMS ((bfd *, asection *,
|
||
asymbol **,
|
||
bfd_vma, const char **,
|
||
const char **,
|
||
unsigned int *));
|
||
#define _bfd_elf_read_minisymbols _bfd_generic_read_minisymbols
|
||
#define _bfd_elf_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
|
||
extern int _bfd_elf_sizeof_headers PARAMS ((bfd *, boolean));
|
||
extern boolean _bfd_elf_new_section_hook PARAMS ((bfd *, asection *));
|
||
extern boolean _bfd_elf_init_reloc_shdr
|
||
PARAMS ((bfd *, Elf_Internal_Shdr *, asection *, boolean));
|
||
|
||
/* If the target doesn't have reloc handling written yet: */
|
||
extern void _bfd_elf_no_info_to_howto PARAMS ((bfd *, arelent *,
|
||
Elf_Internal_Rela *));
|
||
|
||
extern boolean bfd_section_from_shdr PARAMS ((bfd *, unsigned int shindex));
|
||
extern boolean bfd_section_from_phdr PARAMS ((bfd *, Elf_Internal_Phdr *, int));
|
||
|
||
extern int _bfd_elf_symbol_from_bfd_symbol PARAMS ((bfd *, asymbol **));
|
||
|
||
asection *bfd_section_from_elf_index PARAMS ((bfd *, unsigned int));
|
||
boolean _bfd_elf_create_dynamic_sections PARAMS ((bfd *,
|
||
struct bfd_link_info *));
|
||
struct bfd_strtab_hash *_bfd_elf_stringtab_init PARAMS ((void));
|
||
boolean
|
||
_bfd_elf_link_record_dynamic_symbol PARAMS ((struct bfd_link_info *,
|
||
struct elf_link_hash_entry *));
|
||
long
|
||
_bfd_elf_link_lookup_local_dynindx PARAMS ((struct bfd_link_info *,
|
||
bfd *, long));
|
||
boolean
|
||
_bfd_elf_compute_section_file_positions PARAMS ((bfd *,
|
||
struct bfd_link_info *));
|
||
void _bfd_elf_assign_file_positions_for_relocs PARAMS ((bfd *));
|
||
file_ptr _bfd_elf_assign_file_position_for_section PARAMS ((Elf_Internal_Shdr *,
|
||
file_ptr,
|
||
boolean));
|
||
|
||
extern boolean _bfd_elf_validate_reloc PARAMS ((bfd *, arelent *));
|
||
|
||
boolean _bfd_elf_create_dynamic_sections PARAMS ((bfd *,
|
||
struct bfd_link_info *));
|
||
boolean _bfd_elf_create_got_section PARAMS ((bfd *,
|
||
struct bfd_link_info *));
|
||
unsigned long _bfd_elf_link_renumber_dynsyms PARAMS ((bfd *,
|
||
struct bfd_link_info *));
|
||
|
||
boolean _bfd_elfcore_make_pseudosection PARAMS ((bfd *, char *, int, int));
|
||
char *_bfd_elfcore_strndup PARAMS ((bfd *, char *, int));
|
||
|
||
elf_linker_section_t *_bfd_elf_create_linker_section
|
||
PARAMS ((bfd *abfd,
|
||
struct bfd_link_info *info,
|
||
enum elf_linker_section_enum,
|
||
elf_linker_section_t *defaults));
|
||
|
||
elf_linker_section_pointers_t *_bfd_elf_find_pointer_linker_section
|
||
PARAMS ((elf_linker_section_pointers_t *linker_pointers,
|
||
bfd_signed_vma addend,
|
||
elf_linker_section_enum_t which));
|
||
|
||
boolean bfd_elf32_create_pointer_linker_section
|
||
PARAMS ((bfd *abfd,
|
||
struct bfd_link_info *info,
|
||
elf_linker_section_t *lsect,
|
||
struct elf_link_hash_entry *h,
|
||
const Elf32_Internal_Rela *rel));
|
||
|
||
bfd_vma bfd_elf32_finish_pointer_linker_section
|
||
PARAMS ((bfd *output_abfd,
|
||
bfd *input_bfd,
|
||
struct bfd_link_info *info,
|
||
elf_linker_section_t *lsect,
|
||
struct elf_link_hash_entry *h,
|
||
bfd_vma relocation,
|
||
const Elf32_Internal_Rela *rel,
|
||
int relative_reloc));
|
||
|
||
boolean bfd_elf64_create_pointer_linker_section
|
||
PARAMS ((bfd *abfd,
|
||
struct bfd_link_info *info,
|
||
elf_linker_section_t *lsect,
|
||
struct elf_link_hash_entry *h,
|
||
const Elf64_Internal_Rela *rel));
|
||
|
||
bfd_vma bfd_elf64_finish_pointer_linker_section
|
||
PARAMS ((bfd *output_abfd,
|
||
bfd *input_bfd,
|
||
struct bfd_link_info *info,
|
||
elf_linker_section_t *lsect,
|
||
struct elf_link_hash_entry *h,
|
||
bfd_vma relocation,
|
||
const Elf64_Internal_Rela *rel,
|
||
int relative_reloc));
|
||
|
||
boolean _bfd_elf_make_linker_section_rela
|
||
PARAMS ((bfd *dynobj,
|
||
elf_linker_section_t *lsect,
|
||
int alignment));
|
||
|
||
extern const bfd_target *bfd_elf32_object_p PARAMS ((bfd *));
|
||
extern const bfd_target *bfd_elf32_core_file_p PARAMS ((bfd *));
|
||
extern char *bfd_elf32_core_file_failing_command PARAMS ((bfd *));
|
||
extern int bfd_elf32_core_file_failing_signal PARAMS ((bfd *));
|
||
extern boolean bfd_elf32_core_file_matches_executable_p PARAMS ((bfd *,
|
||
bfd *));
|
||
|
||
extern boolean bfd_elf32_bfd_link_add_symbols
|
||
PARAMS ((bfd *, struct bfd_link_info *));
|
||
extern boolean bfd_elf32_bfd_final_link
|
||
PARAMS ((bfd *, struct bfd_link_info *));
|
||
|
||
extern void bfd_elf32_swap_symbol_in
|
||
PARAMS ((bfd *, const Elf32_External_Sym *, Elf_Internal_Sym *));
|
||
extern void bfd_elf32_swap_symbol_out
|
||
PARAMS ((bfd *, const Elf_Internal_Sym *, PTR));
|
||
extern void bfd_elf32_swap_reloc_in
|
||
PARAMS ((bfd *, const Elf32_External_Rel *, Elf_Internal_Rel *));
|
||
extern void bfd_elf32_swap_reloc_out
|
||
PARAMS ((bfd *, const Elf_Internal_Rel *, Elf32_External_Rel *));
|
||
extern void bfd_elf32_swap_reloca_in
|
||
PARAMS ((bfd *, const Elf32_External_Rela *, Elf_Internal_Rela *));
|
||
extern void bfd_elf32_swap_reloca_out
|
||
PARAMS ((bfd *, const Elf_Internal_Rela *, Elf32_External_Rela *));
|
||
extern void bfd_elf32_swap_phdr_in
|
||
PARAMS ((bfd *, const Elf32_External_Phdr *, Elf_Internal_Phdr *));
|
||
extern void bfd_elf32_swap_phdr_out
|
||
PARAMS ((bfd *, const Elf_Internal_Phdr *, Elf32_External_Phdr *));
|
||
extern void bfd_elf32_swap_dyn_in
|
||
PARAMS ((bfd *, const PTR, Elf_Internal_Dyn *));
|
||
extern void bfd_elf32_swap_dyn_out
|
||
PARAMS ((bfd *, const Elf_Internal_Dyn *, PTR));
|
||
extern long bfd_elf32_slurp_symbol_table
|
||
PARAMS ((bfd *, asymbol **, boolean));
|
||
extern boolean bfd_elf32_write_shdrs_and_ehdr PARAMS ((bfd *));
|
||
extern int bfd_elf32_write_out_phdrs
|
||
PARAMS ((bfd *, const Elf_Internal_Phdr *, int));
|
||
extern void bfd_elf32_write_relocs
|
||
PARAMS ((bfd *, asection *, PTR));
|
||
extern boolean bfd_elf32_slurp_reloc_table
|
||
PARAMS ((bfd *, asection *, asymbol **, boolean));
|
||
extern boolean bfd_elf32_add_dynamic_entry
|
||
PARAMS ((struct bfd_link_info *, bfd_vma, bfd_vma));
|
||
extern boolean bfd_elf32_link_create_dynamic_sections
|
||
PARAMS ((bfd *, struct bfd_link_info *));
|
||
extern Elf_Internal_Rela *_bfd_elf32_link_read_relocs
|
||
PARAMS ((bfd *, asection *, PTR, Elf_Internal_Rela *, boolean));
|
||
|
||
extern const bfd_target *bfd_elf64_object_p PARAMS ((bfd *));
|
||
extern const bfd_target *bfd_elf64_core_file_p PARAMS ((bfd *));
|
||
extern char *bfd_elf64_core_file_failing_command PARAMS ((bfd *));
|
||
extern int bfd_elf64_core_file_failing_signal PARAMS ((bfd *));
|
||
extern boolean bfd_elf64_core_file_matches_executable_p PARAMS ((bfd *,
|
||
bfd *));
|
||
extern boolean bfd_elf64_bfd_link_add_symbols
|
||
PARAMS ((bfd *, struct bfd_link_info *));
|
||
extern boolean bfd_elf64_bfd_final_link
|
||
PARAMS ((bfd *, struct bfd_link_info *));
|
||
|
||
extern void bfd_elf64_swap_symbol_in
|
||
PARAMS ((bfd *, const Elf64_External_Sym *, Elf_Internal_Sym *));
|
||
extern void bfd_elf64_swap_symbol_out
|
||
PARAMS ((bfd *, const Elf_Internal_Sym *, PTR));
|
||
extern void bfd_elf64_swap_reloc_in
|
||
PARAMS ((bfd *, const Elf64_External_Rel *, Elf_Internal_Rel *));
|
||
extern void bfd_elf64_swap_reloc_out
|
||
PARAMS ((bfd *, const Elf_Internal_Rel *, Elf64_External_Rel *));
|
||
extern void bfd_elf64_swap_reloca_in
|
||
PARAMS ((bfd *, const Elf64_External_Rela *, Elf_Internal_Rela *));
|
||
extern void bfd_elf64_swap_reloca_out
|
||
PARAMS ((bfd *, const Elf_Internal_Rela *, Elf64_External_Rela *));
|
||
extern void bfd_elf64_swap_phdr_in
|
||
PARAMS ((bfd *, const Elf64_External_Phdr *, Elf_Internal_Phdr *));
|
||
extern void bfd_elf64_swap_phdr_out
|
||
PARAMS ((bfd *, const Elf_Internal_Phdr *, Elf64_External_Phdr *));
|
||
extern void bfd_elf64_swap_dyn_in
|
||
PARAMS ((bfd *, const PTR, Elf_Internal_Dyn *));
|
||
extern void bfd_elf64_swap_dyn_out
|
||
PARAMS ((bfd *, const Elf_Internal_Dyn *, PTR));
|
||
extern long bfd_elf64_slurp_symbol_table
|
||
PARAMS ((bfd *, asymbol **, boolean));
|
||
extern boolean bfd_elf64_write_shdrs_and_ehdr PARAMS ((bfd *));
|
||
extern int bfd_elf64_write_out_phdrs
|
||
PARAMS ((bfd *, const Elf_Internal_Phdr *, int));
|
||
extern void bfd_elf64_write_relocs
|
||
PARAMS ((bfd *, asection *, PTR));
|
||
extern boolean bfd_elf64_slurp_reloc_table
|
||
PARAMS ((bfd *, asection *, asymbol **, boolean));
|
||
extern boolean bfd_elf64_add_dynamic_entry
|
||
PARAMS ((struct bfd_link_info *, bfd_vma, bfd_vma));
|
||
extern boolean bfd_elf64_link_create_dynamic_sections
|
||
PARAMS ((bfd *, struct bfd_link_info *));
|
||
extern Elf_Internal_Rela *_bfd_elf64_link_read_relocs
|
||
PARAMS ((bfd *, asection *, PTR, Elf_Internal_Rela *, boolean));
|
||
|
||
#define bfd_elf32_link_record_dynamic_symbol \
|
||
_bfd_elf_link_record_dynamic_symbol
|
||
#define bfd_elf64_link_record_dynamic_symbol \
|
||
_bfd_elf_link_record_dynamic_symbol
|
||
|
||
boolean _bfd_elf32_link_record_local_dynamic_symbol
|
||
PARAMS ((struct bfd_link_info *, bfd *, long));
|
||
boolean _bfd_elf64_link_record_local_dynamic_symbol
|
||
PARAMS ((struct bfd_link_info *, bfd *, long));
|
||
|
||
extern boolean _bfd_elf_close_and_cleanup PARAMS ((bfd *));
|
||
extern bfd_reloc_status_type _bfd_elf_rel_vtable_reloc_fn
|
||
PARAMS ((bfd *, arelent *, struct symbol_cache_entry *, PTR,
|
||
asection *, bfd *, char **));
|
||
|
||
boolean _bfd_elf32_gc_sections
|
||
PARAMS ((bfd *abfd, struct bfd_link_info *info));
|
||
boolean _bfd_elf32_gc_common_finalize_got_offsets
|
||
PARAMS ((bfd *abfd, struct bfd_link_info *info));
|
||
boolean _bfd_elf32_gc_common_final_link
|
||
PARAMS ((bfd *, struct bfd_link_info *));
|
||
boolean _bfd_elf32_gc_record_vtinherit
|
||
PARAMS ((bfd *, asection *, struct elf_link_hash_entry *, bfd_vma));
|
||
boolean _bfd_elf32_gc_record_vtentry
|
||
PARAMS ((bfd *, asection *, struct elf_link_hash_entry *, bfd_vma));
|
||
|
||
boolean _bfd_elf64_gc_sections
|
||
PARAMS ((bfd *abfd, struct bfd_link_info *info));
|
||
boolean _bfd_elf64_gc_common_finalize_got_offsets
|
||
PARAMS ((bfd *abfd, struct bfd_link_info *info));
|
||
boolean _bfd_elf64_gc_common_final_link
|
||
PARAMS ((bfd *, struct bfd_link_info *));
|
||
boolean _bfd_elf64_gc_record_vtinherit
|
||
PARAMS ((bfd *, asection *, struct elf_link_hash_entry *, bfd_vma));
|
||
boolean _bfd_elf64_gc_record_vtentry
|
||
PARAMS ((bfd *, asection *, struct elf_link_hash_entry *, bfd_vma));
|
||
|
||
/* MIPS ELF specific routines. */
|
||
|
||
extern boolean _bfd_mips_elf_object_p PARAMS ((bfd *));
|
||
extern boolean _bfd_mips_elf_section_from_shdr
|
||
PARAMS ((bfd *, Elf_Internal_Shdr *, char *));
|
||
extern boolean _bfd_mips_elf_fake_sections
|
||
PARAMS ((bfd *, Elf_Internal_Shdr *, asection *));
|
||
extern boolean _bfd_mips_elf_section_from_bfd_section
|
||
PARAMS ((bfd *, Elf_Internal_Shdr *, asection *, int *));
|
||
extern boolean _bfd_mips_elf_section_processing
|
||
PARAMS ((bfd *, Elf_Internal_Shdr *));
|
||
extern void _bfd_mips_elf_symbol_processing PARAMS ((bfd *, asymbol *));
|
||
extern boolean _bfd_mips_elf_read_ecoff_info
|
||
PARAMS ((bfd *, asection *, struct ecoff_debug_info *));
|
||
extern void _bfd_mips_elf_final_write_processing PARAMS ((bfd *, boolean));
|
||
extern bfd_reloc_status_type _bfd_mips_elf_hi16_reloc
|
||
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
|
||
extern bfd_reloc_status_type _bfd_mips_elf_lo16_reloc
|
||
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
|
||
extern bfd_reloc_status_type _bfd_mips_elf_gprel16_reloc
|
||
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
|
||
extern bfd_reloc_status_type _bfd_mips_elf_got16_reloc
|
||
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
|
||
extern bfd_reloc_status_type _bfd_mips_elf_gprel32_reloc
|
||
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
|
||
extern boolean _bfd_mips_elf_set_private_flags PARAMS ((bfd *, flagword));
|
||
extern boolean _bfd_mips_elf_copy_private_bfd_data PARAMS ((bfd *, bfd *));
|
||
extern boolean _bfd_mips_elf_merge_private_bfd_data PARAMS ((bfd *, bfd *));
|
||
extern boolean _bfd_mips_elf_find_nearest_line
|
||
PARAMS ((bfd *, asection *, asymbol **, bfd_vma, const char **,
|
||
const char **, unsigned int *));
|
||
extern boolean _bfd_mips_elf_set_section_contents
|
||
PARAMS ((bfd *, asection *, PTR, file_ptr, bfd_size_type));
|
||
extern boolean _bfd_mips_elf_create_dynamic_sections
|
||
PARAMS ((bfd *, struct bfd_link_info *));
|
||
extern boolean _bfd_mips_elf_add_symbol_hook
|
||
PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *,
|
||
const char **, flagword *, asection **, bfd_vma *));
|
||
extern boolean _bfd_mips_elf_adjust_dynamic_symbol
|
||
PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
|
||
extern boolean _bfd_mips_elf_finish_dynamic_symbol
|
||
PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
|
||
Elf_Internal_Sym *));
|
||
extern boolean _bfd_mips_elf_finish_dynamic_sections
|
||
PARAMS ((bfd *, struct bfd_link_info *));
|
||
extern asection * _bfd_mips_elf_gc_mark_hook
|
||
PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Rela *,
|
||
struct elf_link_hash_entry *, Elf_Internal_Sym *));
|
||
extern boolean _bfd_mips_elf_gc_sweep_hook
|
||
PARAMS ((bfd *, struct bfd_link_info *, asection *,
|
||
const Elf_Internal_Rela *));
|
||
extern boolean _bfd_mips_elf_always_size_sections
|
||
PARAMS ((bfd *, struct bfd_link_info *));
|
||
extern boolean _bfd_mips_elf_size_dynamic_sections
|
||
PARAMS ((bfd *, struct bfd_link_info *));
|
||
extern boolean _bfd_mips_elf_check_relocs
|
||
PARAMS ((bfd *, struct bfd_link_info *, asection *,
|
||
const Elf_Internal_Rela *));
|
||
extern struct bfd_link_hash_table *_bfd_mips_elf_link_hash_table_create
|
||
PARAMS ((bfd *));
|
||
extern boolean _bfd_mips_elf_print_private_bfd_data
|
||
PARAMS ((bfd *, PTR));
|
||
extern boolean _bfd_mips_elf_link_output_symbol_hook
|
||
PARAMS ((bfd *, struct bfd_link_info *, const char *, Elf_Internal_Sym *,
|
||
asection *));
|
||
extern boolean _bfd_mips_elf_final_link
|
||
PARAMS ((bfd *, struct bfd_link_info *));
|
||
extern int _bfd_mips_elf_additional_program_headers PARAMS ((bfd *));
|
||
extern boolean _bfd_mips_elf_modify_segment_map PARAMS ((bfd *));
|
||
extern boolean _bfd_mips_elf_relocate_section
|
||
PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
|
||
Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
|
||
|
||
/* SH ELF specific routine. */
|
||
|
||
extern boolean _sh_elf_set_mach_from_flags PARAMS ((bfd *));
|
||
|
||
#endif /* _LIBELF_H_ */
|