* elfcode.h (elf_build_phdrs): Unused function deleted.
[deliverable/binutils-gdb.git] / bfd / libelf.h
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1/* BFD back-end data structures for ELF files.
2 Copyright (C) 1992, 1993 Free Software Foundation, Inc.
3 Written by Cygnus Support.
4
5This file is part of BFD, the Binary File Descriptor library.
6
7This program is free software; you can redistribute it and/or modify
8it under the terms of the GNU General Public License as published by
9the Free Software Foundation; either version 2 of the License, or
10(at your option) any later version.
11
12This program is distributed in the hope that it will be useful,
13but WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15GNU General Public License for more details.
16
17You should have received a copy of the GNU General Public License
18along with this program; if not, write to the Free Software
19Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
20
21#ifndef _LIBELF_H_
22#define _LIBELF_H_ 1
23
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24#include "elf/common.h"
25#include "elf/internal.h"
26#include "elf/external.h"
27
998ce1e0 28/* If size isn't specified as 64 or 32, NAME macro should fail. */
9942e684 29#ifndef NAME
7050286d 30#if ARCH_SIZE==64
638616ca 31#define NAME(x,y) CAT4(x,64,_,y)
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32#endif
33#if ARCH_SIZE==32
638616ca 34#define NAME(x,y) CAT4(x,32,_,y)
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35#endif
36#endif
37
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38#ifndef NAME
39#define NAME(x,y) CAT4(x,NOSIZE,_,y)
40#endif
41
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42#define ElfNAME(X) NAME(Elf,X)
43#define elfNAME(X) NAME(elf,X)
44
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45typedef struct
46{
47 asymbol symbol;
268f94ac 48 Elf_Internal_Sym internal_elf_sym;
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49 /* these are used for the generation of .stabX symbols (?) */
50 short desc;
51 unsigned char type;
52 char other;
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53 union
54 {
55 unsigned int hppa_arg_reloc;
56 PTR any;
57 }
58 tc_data;
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59 Elf32_External_Sym native_elf_sym;
60} elf32_symbol_type;
db232882 61
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62typedef struct
63{
64 asymbol symbol;
65 Elf_Internal_Sym internal_elf_sym;
66 /* these are used for the generation of .stabX symbols (?) */
67 short desc;
68 unsigned char type;
69 char other;
70 union
71 {
72 unsigned int hppa_arg_reloc;
73 PTR any;
74 }
75 tc_data;
76 Elf64_External_Sym native_elf_sym;
77} elf64_symbol_type;
7050286d 78
268f94ac 79struct elf_backend_data
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80{
81 int use_rela_p;
82 int elf_64_p;
81187b54 83 enum bfd_architecture arch;
7050286d 84 void (*elf_info_to_howto) PARAMS ((bfd *, arelent *,
268f94ac 85 Elf_Internal_Rela *));
7050286d 86 void (*elf_info_to_howto_rel) PARAMS ((bfd *, arelent *,
268f94ac 87 Elf_Internal_Rel *));
d79ab07c 88 bfd_vma maxpagesize;
32090b8e 89 void (*write_relocs) PARAMS ((bfd *, asection *, PTR));
db232882 90
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91 /* @@ I really don't think this should be here. I don't know what
92 global_sym is supposed to be used for, but I doubt it's something
93 that would be considered global, e.g., if you've got a program
94 reading and writing many BFDs. My hunch is that it's specific to
95 the output BFD. If not, put a comment here explaining why. */
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96 /* @@ Was pointer to elfNAME(symbol_type). This makes it size-
97 independent. */
98 PTR global_sym;
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99};
100
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101struct elf_sym_extra
102{
103 int elf_sym_num; /* sym# after locals/globals are reordered */
104};
105
106typedef struct elf_sym_extra Elf_Sym_Extra;
107
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108struct bfd_elf_arch_map {
109 enum bfd_architecture bfd_arch;
110 int elf_arch;
111};
112
113extern const struct bfd_elf_arch_map bfd_elf_arch_map[];
114extern const int bfd_elf_arch_map_size;
115
116struct bfd_elf_section_data {
117 Elf_Internal_Shdr this_hdr;
118 Elf_Internal_Shdr rel_hdr;
119 int this_idx, rel_idx;
120#if 0
121 Elf_Internal_Shdr str_hdr;
122 int str_idx;
123#endif
124};
125#define elf_section_data(sec) ((struct bfd_elf_section_data*)sec->used_by_bfd)
126#define shdr_name(abfd,shdr) (elf_shstrtab (abfd)->tab + (shdr)->sh_name)
127
128#define get_elf_backend_data(abfd) \
129 ((struct elf_backend_data *) (abfd)->xvec->backend_data)
130
131struct strtab
132{
133 char *tab;
134 int nentries;
135 int length;
136};
137
138/* Some private data is stashed away for future use using the tdata pointer
139 in the bfd structure. */
140
141struct elf_obj_tdata
142{
143 Elf_Internal_Ehdr elf_header[1]; /* Actual data, but ref like ptr */
144 Elf_Internal_Shdr **elf_sect_ptr;
d79ab07c 145 Elf_Internal_Phdr *phdr;
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146 struct strtab *strtab_ptr;
147 int num_locals;
148 int num_globals;
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149 PTR raw_syms; /* Elf_External_Sym* */
150 Elf_Internal_Sym *internal_syms;
151 PTR symbols; /* elf_symbol_type */
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152 Elf_Sym_Extra *sym_extra;
153 asymbol **section_syms; /* STT_SECTION symbols for each section */
154 int num_section_syms; /* number of section_syms allocated */
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155 Elf_Internal_Shdr symtab_hdr;
156 Elf_Internal_Shdr shstrtab_hdr;
157 Elf_Internal_Shdr strtab_hdr;
158 int symtab_section, shstrtab_section, strtab_section;
159 file_ptr next_file_pos;
160 void *prstatus; /* The raw /proc prstatus structure */
161 void *prpsinfo; /* The raw /proc prpsinfo structure */
162};
163
164#define elf_tdata(bfd) ((bfd) -> tdata.elf_obj_data)
165#define elf_elfheader(bfd) (elf_tdata(bfd) -> elf_header)
166#define elf_elfsections(bfd) (elf_tdata(bfd) -> elf_sect_ptr)
167#define elf_shstrtab(bfd) (elf_tdata(bfd) -> strtab_ptr)
168#define elf_onesymtab(bfd) (elf_tdata(bfd) -> symtab_section)
169#define elf_num_locals(bfd) (elf_tdata(bfd) -> num_locals)
170#define elf_num_globals(bfd) (elf_tdata(bfd) -> num_globals)
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171#define elf_sym_extra(bfd) (elf_tdata(bfd) -> sym_extra)
172#define elf_section_syms(bfd) (elf_tdata(bfd) -> section_syms)
173#define elf_num_section_syms(bfd) (elf_tdata(bfd) -> num_section_syms)
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174#define core_prpsinfo(bfd) (elf_tdata(bfd) -> prpsinfo)
175#define core_prstatus(bfd) (elf_tdata(bfd) -> prstatus)
176#define obj_symbols(bfd) ((elf_symbol_type*)(elf_tdata(bfd) -> symbols))
177#define obj_raw_syms(bfd) ((Elf_External_Sym*)(elf_tdata(bfd) -> raw_syms))
178#define obj_internal_syms(bfd) (elf_tdata(bfd) -> internal_syms)
179
180extern char * elf_string_from_elf_section PARAMS ((bfd *, unsigned, unsigned));
181extern char * elf_get_str_section PARAMS ((bfd *, unsigned));
182
183#define bfd_elf32_mkobject bfd_elf_mkobject
184#define bfd_elf64_mkobject bfd_elf_mkobject
185#define elf_mkobject bfd_elf_mkobject
186
153cb9ad 187extern unsigned long bfd_elf_hash PARAMS ((CONST unsigned char *));
7e37f9ff 188
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189extern bfd_reloc_status_type bfd_elf_generic_reloc PARAMS ((bfd *,
190 arelent *,
191 asymbol *,
192 PTR,
193 asection *,
194 bfd *));
998ce1e0 195extern boolean bfd_elf_mkobject PARAMS ((bfd *));
9942e684 196extern boolean bfd_elf32_write_object_contents PARAMS ((bfd *));
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197extern boolean bfd_elf64_write_object_contents PARAMS ((bfd *));
198
199extern bfd_target *bfd_elf32_object_p PARAMS ((bfd *));
200extern bfd_target *bfd_elf32_core_file_p PARAMS ((bfd *));
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201extern char *bfd_elf32_core_file_failing_command PARAMS ((bfd *));
202extern int bfd_elf32_core_file_failing_signal PARAMS ((bfd *));
203extern boolean bfd_elf32_core_file_matches_executable_p PARAMS ((bfd *,
204 bfd *));
205extern boolean bfd_elf32_set_section_contents PARAMS ((bfd *, sec_ptr, PTR,
206 file_ptr,
207 bfd_size_type));
7050286d 208
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209extern unsigned int bfd_elf32_get_symtab_upper_bound PARAMS ((bfd *));
210extern unsigned int bfd_elf32_get_symtab PARAMS ((bfd *, asymbol **));
211extern unsigned int bfd_elf32_get_reloc_upper_bound PARAMS ((bfd *, sec_ptr));
212extern unsigned int bfd_elf32_canonicalize_reloc PARAMS ((bfd *, sec_ptr,
213 arelent **,
214 asymbol **));
215extern asymbol *bfd_elf32_make_empty_symbol PARAMS ((bfd *));
216extern void bfd_elf32_print_symbol PARAMS ((bfd *, PTR, asymbol *,
217 bfd_print_symbol_type));
218extern void bfd_elf32_get_symbol_info PARAMS ((bfd *, asymbol *,
7050286d 219 symbol_info *));
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220extern alent *bfd_elf32_get_lineno PARAMS ((bfd *, asymbol *));
221extern boolean bfd_elf32_set_arch_mach PARAMS ((bfd *, enum bfd_architecture,
222 unsigned long));
223extern boolean bfd_elf32_find_nearest_line PARAMS ((bfd *, asection *,
224 asymbol **,
225 bfd_vma, CONST char **,
226 CONST char **,
227 unsigned int *));
228extern int bfd_elf32_sizeof_headers PARAMS ((bfd *, boolean));
32090b8e 229extern void bfd_elf32__write_relocs PARAMS ((bfd *, asection *, PTR));
e6858d1b 230extern boolean bfd_elf32_new_section_hook PARAMS ((bfd *, asection *));
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231
232/* If the target doesn't have reloc handling written yet: */
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233extern void bfd_elf32_no_info_to_howto PARAMS ((bfd *, arelent *,
234 Elf32_Internal_Rela *));
db232882 235
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236extern bfd_target *bfd_elf64_object_p PARAMS ((bfd *));
237extern bfd_target *bfd_elf64_core_file_p PARAMS ((bfd *));
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238extern char *bfd_elf64_core_file_failing_command PARAMS ((bfd *));
239extern int bfd_elf64_core_file_failing_signal PARAMS ((bfd *));
240extern boolean bfd_elf64_core_file_matches_executable_p PARAMS ((bfd *,
241 bfd *));
242extern boolean bfd_elf64_set_section_contents PARAMS ((bfd *, sec_ptr, PTR,
243 file_ptr,
244 bfd_size_type));
245
246extern unsigned int bfd_elf64_get_symtab_upper_bound PARAMS ((bfd *));
247extern unsigned int bfd_elf64_get_symtab PARAMS ((bfd *, asymbol **));
248extern unsigned int bfd_elf64_get_reloc_upper_bound PARAMS ((bfd *, sec_ptr));
249extern unsigned int bfd_elf64_canonicalize_reloc PARAMS ((bfd *, sec_ptr,
250 arelent **,
251 asymbol **));
252extern asymbol *bfd_elf64_make_empty_symbol PARAMS ((bfd *));
253extern void bfd_elf64_print_symbol PARAMS ((bfd *, PTR, asymbol *,
254 bfd_print_symbol_type));
255extern void bfd_elf64_get_symbol_info PARAMS ((bfd *, asymbol *,
256 symbol_info *));
257extern alent *bfd_elf64_get_lineno PARAMS ((bfd *, asymbol *));
258extern boolean bfd_elf64_set_arch_mach PARAMS ((bfd *, enum bfd_architecture,
259 unsigned long));
260extern boolean bfd_elf64_find_nearest_line PARAMS ((bfd *, asection *,
261 asymbol **,
262 bfd_vma, CONST char **,
263 CONST char **,
264 unsigned int *));
265extern int bfd_elf64_sizeof_headers PARAMS ((bfd *, boolean));
32090b8e 266extern void bfd_elf64__write_relocs PARAMS ((bfd *, asection *, PTR));
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267extern boolean bfd_elf64_new_section_hook PARAMS ((bfd *, asection *));
268
269/* If the target doesn't have reloc handling written yet: */
270extern void bfd_elf64_no_info_to_howto PARAMS ((bfd *, arelent *,
271 Elf64_Internal_Rela *));
272
db232882 273#endif /* _LIBELF_H_ */
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