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authorIan Lance Taylor <ian@airs.com>1995-11-28 22:02:13 +0000
committerIan Lance Taylor <ian@airs.com>1995-11-28 22:02:13 +0000
commitfd0198f02371c0d604ec7c3162cf60a0a84c0ef0 (patch)
tree7f92823e70416a077c31b4db5ce30fa9cee0084f /bfd/elf-bfd.h
parent6d2d98d31340d6a5e8eca291a70c59d507a8125e (diff)
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* elf-bfd.h (struct elf_obj_tdata): Add segment_map field.
* elf.c (make_mapping): New static function. (map_sections_to_segments): New static function. (elf_sort_sections): New static function. (assign_file_positions_for_segments): New static function. (map_program_segments): Remove. (get_program_header_size): Remove sorted_hdrs, count, and maxpagesize parameters. Simplify. (assign_file_positions_except_relocs): When generating an executable, use assign_file_positions_for_segments. (elf_sort_hdrs): Remove. (_bfd_elf_sizeof_headers): Remove eliminated parameters from call to get_program_header_size.
Diffstat (limited to 'bfd/elf-bfd.h')
-rw-r--r--bfd/elf-bfd.h726
1 files changed, 726 insertions, 0 deletions
diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h
new file mode 100644
index 0000000..e7baaa9
--- /dev/null
+++ b/bfd/elf-bfd.h
@@ -0,0 +1,726 @@
+/* BFD back-end data structures for ELF files.
+ Copyright (C) 1992, 1993 Free Software Foundation, Inc.
+ Written by Cygnus Support.
+
+This file is part of BFD, the Binary File Descriptor library.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#ifndef _LIBELF_H_
+#define _LIBELF_H_ 1
+
+#include "elf/common.h"
+#include "elf/internal.h"
+#include "elf/external.h"
+#include "bfdlink.h"
+
+/* If size isn't specified as 64 or 32, NAME macro should fail. */
+#ifndef NAME
+#if ARCH_SIZE==64
+#define NAME(x,y) CAT4(x,64,_,y)
+#endif
+#if ARCH_SIZE==32
+#define NAME(x,y) CAT4(x,32,_,y)
+#endif
+#endif
+
+#ifndef NAME
+#define NAME(x,y) CAT4(x,NOSIZE,_,y)
+#endif
+
+#define ElfNAME(X) NAME(Elf,X)
+#define elfNAME(X) NAME(elf,X)
+
+/* Information held for an ELF symbol. The first field is the
+ corresponding asymbol. Every symbol is an ELF file is actually a
+ pointer to this structure, although it is often handled as a
+ pointer to an asymbol. */
+
+typedef struct
+{
+ /* The BFD symbol. */
+ asymbol symbol;
+ /* ELF symbol information. */
+ Elf_Internal_Sym internal_elf_sym;
+ /* Backend specific information. */
+ union
+ {
+ unsigned int hppa_arg_reloc;
+ PTR mips_extr;
+ PTR any;
+ }
+ tc_data;
+} elf_symbol_type;
+
+/* ELF linker hash table entries. */
+
+struct elf_link_hash_entry
+{
+ struct bfd_link_hash_entry root;
+
+ /* Symbol index in output file. This is initialized to -1. It is
+ set to -2 if the symbol is used by a reloc. */
+ long indx;
+
+ /* Symbol size. */
+ bfd_size_type size;
+
+ /* Symbol index as a dynamic symbol. Initialized to -1, and remains
+ -1 if this is not a dynamic symbol. */
+ long dynindx;
+
+ /* String table index in .dynstr if this is a dynamic symbol. */
+ unsigned long dynstr_index;
+
+ /* If this is a weak defined symbol from a dynamic object, this
+ field points to a defined symbol with the same value, if there is
+ one. Otherwise it is NULL. */
+ struct elf_link_hash_entry *weakdef;
+
+ /* If this symbol requires an entry in the global offset table, the
+ processor specific backend uses this field to hold the offset
+ into the .got section. If this field is -1, then the symbol does
+ not require a global offset table entry. */
+ bfd_vma got_offset;
+
+ /* If this symbol requires an entry in the procedure linkage table,
+ the processor specific backend uses these two fields to hold the
+ offset into the procedure linkage section and the offset into the
+ .got section. If plt_offset is -1, then the symbol does not
+ require an entry in the procedure linkage table. */
+ bfd_vma plt_offset;
+
+ /* Symbol type (STT_NOTYPE, STT_OBJECT, etc.). */
+ char type;
+
+ /* Some flags; legal values follow. */
+ unsigned char elf_link_hash_flags;
+ /* Symbol is referenced by a non-shared object. */
+#define ELF_LINK_HASH_REF_REGULAR 01
+ /* Symbol is defined by a non-shared object. */
+#define ELF_LINK_HASH_DEF_REGULAR 02
+ /* Symbol is referenced by a shared object. */
+#define ELF_LINK_HASH_REF_DYNAMIC 04
+ /* Symbol is defined by a shared object. */
+#define ELF_LINK_HASH_DEF_DYNAMIC 010
+ /* Dynamic symbol has been adjustd. */
+#define ELF_LINK_HASH_DYNAMIC_ADJUSTED 020
+ /* Symbol needs a copy reloc. */
+#define ELF_LINK_HASH_NEEDS_COPY 040
+ /* Symbol needs a procedure linkage table entry. */
+#define ELF_LINK_HASH_NEEDS_PLT 0100
+};
+
+/* ELF linker hash table. */
+
+struct elf_link_hash_table
+{
+ struct bfd_link_hash_table root;
+ /* Whether we have created the special dynamic sections required
+ when linking against or generating a shared object. */
+ boolean dynamic_sections_created;
+ /* The BFD used to hold special sections created by the linker.
+ This will be the first BFD found which requires these sections to
+ be created. */
+ bfd *dynobj;
+ /* The number of symbols found in the link which must be put into
+ the .dynsym section. */
+ bfd_size_type dynsymcount;
+ /* The string table of dynamic symbols, which becomes the .dynstr
+ section. */
+ struct bfd_strtab_hash *dynstr;
+ /* The number of buckets in the hash table in the .hash section.
+ This is based on the number of dynamic symbols. */
+ bfd_size_type bucketcount;
+ /* A linked list of DT_NEEDED names found in dynamic objects
+ included in the link. */
+ struct bfd_link_needed_list *needed;
+};
+
+/* Look up an entry in an ELF linker hash table. */
+
+#define elf_link_hash_lookup(table, string, create, copy, follow) \
+ ((struct elf_link_hash_entry *) \
+ bfd_link_hash_lookup (&(table)->root, (string), (create), \
+ (copy), (follow)))
+
+/* Traverse an ELF linker hash table. */
+
+#define elf_link_hash_traverse(table, func, info) \
+ (bfd_link_hash_traverse \
+ (&(table)->root, \
+ (boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func), \
+ (info)))
+
+/* Get the ELF linker hash table from a link_info structure. */
+
+#define elf_hash_table(p) ((struct elf_link_hash_table *) ((p)->hash))
+
+/* Constant information held for an ELF backend. */
+
+struct elf_size_info {
+ unsigned char sizeof_ehdr, sizeof_phdr, sizeof_shdr;
+ unsigned char sizeof_rel, sizeof_rela, sizeof_sym, sizeof_dyn, sizeof_note;
+
+ unsigned char arch_size, file_align;
+ unsigned char elfclass, ev_current;
+ int (*write_out_phdrs) PARAMS ((bfd *, Elf_Internal_Phdr *, int));
+ boolean (*write_shdrs_and_ehdr) PARAMS ((bfd *));
+ void (*write_relocs) PARAMS ((bfd *, asection *, PTR));
+ void (*swap_symbol_out) PARAMS ((bfd *, Elf_Internal_Sym *, PTR));
+ boolean (*slurp_reloc_table) PARAMS ((bfd *, asection *, asymbol **));
+ long (*slurp_symbol_table) PARAMS ((bfd *, asymbol **, boolean));
+};
+
+#define elf_symbol_from(ABFD,S) \
+ (((S)->the_bfd->xvec->flavour == bfd_target_elf_flavour \
+ && (S)->the_bfd->tdata.elf_obj_data != 0) \
+ ? (elf_symbol_type *) (S) \
+ : 0)
+
+struct elf_backend_data
+{
+ /* Whether the backend uses REL or RELA relocations. FIXME: some
+ ELF backends use both. When we need to support one, this whole
+ approach will need to be changed. */
+ int use_rela_p;
+
+ /* The architecture for this backend. */
+ enum bfd_architecture arch;
+
+ /* The ELF machine code (EM_xxxx) for this backend. */
+ int elf_machine_code;
+
+ /* The maximum page size for this backend. */
+ bfd_vma maxpagesize;
+
+ /* 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. */
+ boolean collect;
+
+ /* A function to translate an ELF RELA relocation to a BFD arelent
+ structure. */
+ void (*elf_info_to_howto) PARAMS ((bfd *, arelent *,
+ Elf_Internal_Rela *));
+
+ /* A function to translate an ELF REL relocation to a BFD arelent
+ structure. */
+ void (*elf_info_to_howto_rel) PARAMS ((bfd *, arelent *,
+ Elf_Internal_Rel *));
+
+ /* A function to determine whether a symbol is global when
+ partitioning the symbol table into local and global symbols.
+ This should be NULL for most targets, in which case the correct
+ thing will be done. MIPS ELF, at least on the Irix 5, has
+ special requirements. */
+ boolean (*elf_backend_sym_is_global) PARAMS ((bfd *, asymbol *));
+
+ /* The remaining functions are hooks which are called only if they
+ are not NULL. */
+
+ /* A function to permit a backend specific check on whether a
+ particular BFD format is relevant for an object file, and to
+ permit the backend to set any global information it wishes. When
+ this is called elf_elfheader is set, but anything else should be
+ used with caution. If this returns false, the check_format
+ routine will return a bfd_error_wrong_format error. */
+ boolean (*elf_backend_object_p) PARAMS ((bfd *));
+
+ /* A function to do additional symbol processing when reading the
+ ELF symbol table. This is where any processor-specific special
+ section indices are handled. */
+ void (*elf_backend_symbol_processing) PARAMS ((bfd *, asymbol *));
+
+ /* A function to do additional symbol processing after reading the
+ entire ELF symbol table. */
+ boolean (*elf_backend_symbol_table_processing) PARAMS ((bfd *,
+ elf_symbol_type *,
+ unsigned int));
+
+ /* A function to do additional processing on the ELF section header
+ just before writing it out. This is used to set the flags and
+ type fields for some sections, or to actually write out data for
+ unusual sections. */
+ boolean (*elf_backend_section_processing) PARAMS ((bfd *,
+ Elf32_Internal_Shdr *));
+
+ /* A function to handle unusual section types when creating BFD
+ sections from ELF sections. */
+ boolean (*elf_backend_section_from_shdr) PARAMS ((bfd *,
+ Elf32_Internal_Shdr *,
+ char *));
+
+ /* A function to set up the ELF section header for a BFD section in
+ preparation for writing it out. This is where the flags and type
+ fields are set for unusual sections. */
+ 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
+ section, *RETVAL should be left unchanged. If it is not a normal
+ ELF section *RETVAL should be set to the SHN_xxxx index. */
+ boolean (*elf_backend_section_from_bfd_section)
+ 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
+ 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,
+ 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 *,
+ 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 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));
+
+ /* A function to create any special program headers required by the
+ backend. PHDRS are the program headers, and PHDR_COUNT is the
+ number of them. If PHDRS is NULL, this just counts headers
+ without creating them. This returns an updated value for
+ PHDR_COUNT. */
+ int (*elf_backend_create_program_headers)
+ PARAMS ((bfd *, Elf_Internal_Phdr *phdrs, int phdr_count));
+
+ /* 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;
+
+ unsigned want_got_plt : 1;
+ unsigned plt_readonly : 1;
+ unsigned want_plt_sym : 1;
+
+ /* Put ELF and program headers in the first loadable segment. */
+ unsigned want_hdr_in_seg : 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;
+ /* The ELF section number of this section. Only used for an output
+ file. */
+ int this_idx;
+ /* The ELF section number of the reloc section associated with this
+ section, if any. Only used for an output file. */
+ int rel_idx;
+ /* 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. */
+ long dynindx;
+};
+
+#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)
+
+/* 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;
+ unsigned int symtab_section, shstrtab_section;
+ unsigned int strtab_section, dynsymtab_section;
+ file_ptr next_file_pos;
+ void *prstatus; /* The raw /proc prstatus structure */
+ void *prpsinfo; /* The raw /proc prpsinfo structure */
+ bfd_vma gp; /* The gp value (MIPS only, for now) */
+ unsigned int gp_size; /* The gp size (MIPS only, for now) */
+
+ /* 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. */
+ bfd_vma *local_got_offsets;
+
+ /* 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. This field is used to
+ hold that information. */
+ const char *dt_needed_name;
+
+ /* 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 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;
+
+ /* Used by PowerPC to determine if the e_flags field has been intiialized */
+ boolean ppc_flags_init;
+};
+
+#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_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_offsets(bfd) (elf_tdata(bfd) -> local_got_offsets)
+#define elf_dt_needed_name(bfd) (elf_tdata(bfd) -> dt_needed_name)
+#define elf_bad_symtab(bfd) (elf_tdata(bfd) -> bad_symtab)
+#define elf_ppc_flags_init(bfd) (elf_tdata(bfd) -> ppc_flags_init)
+
+extern char * bfd_elf_string_from_elf_section PARAMS ((bfd *, unsigned, unsigned));
+extern char * bfd_elf_get_str_section PARAMS ((bfd *, unsigned));
+
+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
+#define bfd_elf32_mkobject bfd_elf_mkobject
+#define bfd_elf64_mkobject bfd_elf_mkobject
+#define elf_mkobject bfd_elf_mkobject
+
+extern unsigned long bfd_elf_hash PARAMS ((CONST unsigned 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 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 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 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_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_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 asymbol *_bfd_elf_make_empty_symbol PARAMS ((bfd *));
+extern void _bfd_elf_get_symbol_info PARAMS ((bfd *, asymbol *,
+ symbol_info *));
+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 *));
+
+/* If the target doesn't have reloc handling written yet: */
+extern void _bfd_elf_no_info_to_howto PARAMS ((bfd *, arelent *,
+ Elf_Internal_Rela *));
+
+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 *));
+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));
+
+boolean _bfd_elf_create_dynamic_sections PARAMS ((bfd *,
+ struct bfd_link_info *));
+boolean _bfd_elf_create_got_section PARAMS ((bfd *,
+ struct bfd_link_info *));
+
+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 *, Elf32_External_Sym *, Elf_Internal_Sym *));
+extern void bfd_elf32_swap_symbol_out
+ PARAMS ((bfd *, Elf_Internal_Sym *, PTR));
+extern void bfd_elf32_swap_reloc_in
+ PARAMS ((bfd *, Elf32_External_Rel *, Elf_Internal_Rel *));
+extern void bfd_elf32_swap_reloc_out
+ PARAMS ((bfd *, Elf_Internal_Rel *, Elf32_External_Rel *));
+extern void bfd_elf32_swap_reloca_in
+ PARAMS ((bfd *, Elf32_External_Rela *, Elf_Internal_Rela *));
+extern void bfd_elf32_swap_reloca_out
+ PARAMS ((bfd *, Elf_Internal_Rela *, Elf32_External_Rela *));
+extern void bfd_elf32_swap_phdr_in
+ PARAMS ((bfd *, Elf32_External_Phdr *, Elf_Internal_Phdr *));
+extern void bfd_elf32_swap_phdr_out
+ PARAMS ((bfd *, Elf_Internal_Phdr *, Elf32_External_Phdr *));
+extern void bfd_elf32_swap_dyn_in
+ PARAMS ((bfd *, const Elf32_External_Dyn *, Elf_Internal_Dyn *));
+extern void bfd_elf32_swap_dyn_out
+ PARAMS ((bfd *, const Elf_Internal_Dyn *, Elf32_External_Dyn *));
+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 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 *, Elf64_External_Sym *, Elf_Internal_Sym *));
+extern void bfd_elf64_swap_symbol_out
+ PARAMS ((bfd *, Elf_Internal_Sym *, PTR));
+extern void bfd_elf64_swap_reloc_in
+ PARAMS ((bfd *, Elf64_External_Rel *, Elf_Internal_Rel *));
+extern void bfd_elf64_swap_reloc_out
+ PARAMS ((bfd *, Elf_Internal_Rel *, Elf64_External_Rel *));
+extern void bfd_elf64_swap_reloca_in
+ PARAMS ((bfd *, Elf64_External_Rela *, Elf_Internal_Rela *));
+extern void bfd_elf64_swap_reloca_out
+ PARAMS ((bfd *, Elf_Internal_Rela *, Elf64_External_Rela *));
+extern void bfd_elf64_swap_phdr_in
+ PARAMS ((bfd *, Elf64_External_Phdr *, Elf_Internal_Phdr *));
+extern void bfd_elf64_swap_phdr_out
+ PARAMS ((bfd *, Elf_Internal_Phdr *, Elf64_External_Phdr *));
+extern void bfd_elf64_swap_dyn_in
+ PARAMS ((bfd *, const Elf64_External_Dyn *, Elf_Internal_Dyn *));
+extern void bfd_elf64_swap_dyn_out
+ PARAMS ((bfd *, const Elf_Internal_Dyn *, Elf64_External_Dyn *));
+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 *));
+
+#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
+
+#endif /* _LIBELF_H_ */