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* libelf.h (NAME): Provide a default definition, that's neither
[deliverable/binutils-gdb.git] / bfd / libelf.h
CommitLineData
db232882
KR		 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
81187b54
KR		 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)
998ce1e0
KR		 32#endif
33#if ARCH_SIZE==32
638616ca 34#define NAME(x,y) CAT4(x,32,_,y)
9942e684
KR		 35#endif
36#endif
37
153cb9ad
KR		 38#ifndef NAME
39#define NAME(x,y) CAT4(x,NOSIZE,_,y)
40#endif
41
638616ca
KR		 42#define ElfNAME(X) NAME(Elf,X)
43#define elfNAME(X) NAME(elf,X)
44
db232882
KR		 45typedef struct
46{
47 asymbol symbol;
268f94ac 48 Elf_Internal_Sym internal_elf_sym;
db232882
KR		 49 /* these are used for the generation of .stabX symbols (?) */
50 short desc;
51 unsigned char type;
52 char other;
7050286d
KR		 53 union
54 {
55 unsigned int hppa_arg_reloc;
56 PTR any;
57 }
58 tc_data;
998ce1e0
KR		 59 Elf32_External_Sym native_elf_sym;
60} elf32_symbol_type;
db232882 61
998ce1e0
KR		 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
7050286d
KR		 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
8e40bcd8
KR		 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. */
998ce1e0
KR		 96 /* @@ Was pointer to elfNAME(symbol_type). This makes it size-
97 independent. */
98 PTR global_sym;
81187b54
KR		 99};
100
32090b8e
KR		 101struct bfd_elf_arch_map {
102 enum bfd_architecture bfd_arch;
103 int elf_arch;
104};
105
106extern const struct bfd_elf_arch_map bfd_elf_arch_map[];
107extern const int bfd_elf_arch_map_size;
108
109struct bfd_elf_section_data {
110 Elf_Internal_Shdr this_hdr;
111 Elf_Internal_Shdr rel_hdr;
112 int this_idx, rel_idx;
113#if 0
114 Elf_Internal_Shdr str_hdr;
115 int str_idx;
116#endif
117};
118#define elf_section_data(sec) ((struct bfd_elf_section_data*)sec->used_by_bfd)
119#define shdr_name(abfd,shdr) (elf_shstrtab (abfd)->tab + (shdr)->sh_name)
120
121#define get_elf_backend_data(abfd) \
122 ((struct elf_backend_data *) (abfd)->xvec->backend_data)
123
124struct strtab
125{
126 char *tab;
127 int nentries;
128 int length;
129};
130
131/* Some private data is stashed away for future use using the tdata pointer
132 in the bfd structure. */
133
134struct elf_obj_tdata
135{
136 Elf_Internal_Ehdr elf_header[1]; /* Actual data, but ref like ptr */
137 Elf_Internal_Shdr **elf_sect_ptr;
d79ab07c 138 Elf_Internal_Phdr *phdr;
32090b8e
KR		 139 struct strtab *strtab_ptr;
140 int num_locals;
141 int num_globals;
142 int *symtab_map;
143 PTR raw_syms; /* Elf_External_Sym* */
144 Elf_Internal_Sym *internal_syms;
145 PTR symbols; /* elf_symbol_type */
146/* struct strtab *shstrtab;*/
147 Elf_Internal_Shdr symtab_hdr;
148 Elf_Internal_Shdr shstrtab_hdr;
149 Elf_Internal_Shdr strtab_hdr;
150 int symtab_section, shstrtab_section, strtab_section;
151 file_ptr next_file_pos;
152 void *prstatus; /* The raw /proc prstatus structure */
153 void *prpsinfo; /* The raw /proc prpsinfo structure */
154};
155
156#define elf_tdata(bfd) ((bfd) -> tdata.elf_obj_data)
157#define elf_elfheader(bfd) (elf_tdata(bfd) -> elf_header)
158#define elf_elfsections(bfd) (elf_tdata(bfd) -> elf_sect_ptr)
159#define elf_shstrtab(bfd) (elf_tdata(bfd) -> strtab_ptr)
160#define elf_onesymtab(bfd) (elf_tdata(bfd) -> symtab_section)
161#define elf_num_locals(bfd) (elf_tdata(bfd) -> num_locals)
162#define elf_num_globals(bfd) (elf_tdata(bfd) -> num_globals)
163#define elf_symtab_map(bfd) (elf_tdata(bfd) -> symtab_map)
164#define core_prpsinfo(bfd) (elf_tdata(bfd) -> prpsinfo)
165#define core_prstatus(bfd) (elf_tdata(bfd) -> prstatus)
166#define obj_symbols(bfd) ((elf_symbol_type*)(elf_tdata(bfd) -> symbols))
167#define obj_raw_syms(bfd) ((Elf_External_Sym*)(elf_tdata(bfd) -> raw_syms))
168#define obj_internal_syms(bfd) (elf_tdata(bfd) -> internal_syms)
169
170extern char * elf_string_from_elf_section PARAMS ((bfd *, unsigned, unsigned));
171extern char * elf_get_str_section PARAMS ((bfd *, unsigned));
172
173#define bfd_elf32_mkobject bfd_elf_mkobject
174#define bfd_elf64_mkobject bfd_elf_mkobject
175#define elf_mkobject bfd_elf_mkobject
176
153cb9ad 177extern unsigned long bfd_elf_hash PARAMS ((CONST unsigned char *));
7e37f9ff 178
32090b8e
KR		 179extern bfd_reloc_status_type bfd_elf_generic_reloc PARAMS ((bfd *,
180 arelent *,
181 asymbol *,
182 PTR,
183 asection *,
184 bfd *));
998ce1e0 185extern boolean bfd_elf_mkobject PARAMS ((bfd *));
9942e684 186extern boolean bfd_elf32_write_object_contents PARAMS ((bfd *));
32090b8e
KR		 187extern boolean bfd_elf64_write_object_contents PARAMS ((bfd *));
188
189extern bfd_target *bfd_elf32_object_p PARAMS ((bfd *));
190extern bfd_target *bfd_elf32_core_file_p PARAMS ((bfd *));
9942e684
KR		 191extern char *bfd_elf32_core_file_failing_command PARAMS ((bfd *));
192extern int bfd_elf32_core_file_failing_signal PARAMS ((bfd *));
193extern boolean bfd_elf32_core_file_matches_executable_p PARAMS ((bfd *,
194 bfd *));
195extern boolean bfd_elf32_set_section_contents PARAMS ((bfd *, sec_ptr, PTR,
196 file_ptr,
197 bfd_size_type));
7050286d 198
9942e684
KR		 199extern unsigned int bfd_elf32_get_symtab_upper_bound PARAMS ((bfd *));
200extern unsigned int bfd_elf32_get_symtab PARAMS ((bfd *, asymbol **));
201extern unsigned int bfd_elf32_get_reloc_upper_bound PARAMS ((bfd *, sec_ptr));
202extern unsigned int bfd_elf32_canonicalize_reloc PARAMS ((bfd *, sec_ptr,
203 arelent **,
204 asymbol **));
205extern asymbol *bfd_elf32_make_empty_symbol PARAMS ((bfd *));
206extern void bfd_elf32_print_symbol PARAMS ((bfd *, PTR, asymbol *,
207 bfd_print_symbol_type));
208extern void bfd_elf32_get_symbol_info PARAMS ((bfd *, asymbol *,
7050286d 209 symbol_info *));
9942e684
KR		 210extern alent *bfd_elf32_get_lineno PARAMS ((bfd *, asymbol *));
211extern boolean bfd_elf32_set_arch_mach PARAMS ((bfd *, enum bfd_architecture,
212 unsigned long));
213extern boolean bfd_elf32_find_nearest_line PARAMS ((bfd *, asection *,
214 asymbol **,
215 bfd_vma, CONST char **,
216 CONST char **,
217 unsigned int *));
218extern int bfd_elf32_sizeof_headers PARAMS ((bfd *, boolean));
32090b8e 219extern void bfd_elf32__write_relocs PARAMS ((bfd *, asection *, PTR));
e6858d1b 220extern boolean bfd_elf32_new_section_hook PARAMS ((bfd *, asection *));
81187b54
KR		 221
222/* If the target doesn't have reloc handling written yet: */
9942e684
KR		 223extern void bfd_elf32_no_info_to_howto PARAMS ((bfd *, arelent *,
224 Elf32_Internal_Rela *));
db232882 225
7d9bb6da
KR		 226extern bfd_target *bfd_elf64_object_p PARAMS ((bfd *));
227extern bfd_target *bfd_elf64_core_file_p PARAMS ((bfd *));
7d9bb6da
KR		 228extern char *bfd_elf64_core_file_failing_command PARAMS ((bfd *));
229extern int bfd_elf64_core_file_failing_signal PARAMS ((bfd *));
230extern boolean bfd_elf64_core_file_matches_executable_p PARAMS ((bfd *,
231 bfd *));
232extern boolean bfd_elf64_set_section_contents PARAMS ((bfd *, sec_ptr, PTR,
233 file_ptr,
234 bfd_size_type));
235
236extern unsigned int bfd_elf64_get_symtab_upper_bound PARAMS ((bfd *));
237extern unsigned int bfd_elf64_get_symtab PARAMS ((bfd *, asymbol **));
238extern unsigned int bfd_elf64_get_reloc_upper_bound PARAMS ((bfd *, sec_ptr));
239extern unsigned int bfd_elf64_canonicalize_reloc PARAMS ((bfd *, sec_ptr,
240 arelent **,
241 asymbol **));
242extern asymbol *bfd_elf64_make_empty_symbol PARAMS ((bfd *));
243extern void bfd_elf64_print_symbol PARAMS ((bfd *, PTR, asymbol *,
244 bfd_print_symbol_type));
245extern void bfd_elf64_get_symbol_info PARAMS ((bfd *, asymbol *,
246 symbol_info *));
247extern alent *bfd_elf64_get_lineno PARAMS ((bfd *, asymbol *));
248extern boolean bfd_elf64_set_arch_mach PARAMS ((bfd *, enum bfd_architecture,
249 unsigned long));
250extern boolean bfd_elf64_find_nearest_line PARAMS ((bfd *, asection *,
251 asymbol **,
252 bfd_vma, CONST char **,
253 CONST char **,
254 unsigned int *));
255extern int bfd_elf64_sizeof_headers PARAMS ((bfd *, boolean));
32090b8e 256extern void bfd_elf64__write_relocs PARAMS ((bfd *, asection *, PTR));
7d9bb6da
KR		 257extern boolean bfd_elf64_new_section_hook PARAMS ((bfd *, asection *));
258
259/* If the target doesn't have reloc handling written yet: */
260extern void bfd_elf64_no_info_to_howto PARAMS ((bfd *, arelent *,
261 Elf64_Internal_Rela *));
262
db232882 263#endif /* _LIBELF_H_ */
GDB Binutils - Deliverables
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