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Merged in changes from Jeff Law and Pete Hoogenboom at Utah for PA ELF
[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. */
e2a422b8
KR		 98 void (*elf_backend_symbol_processing) PARAMS ((bfd *, asymbol *));
99 boolean (*elf_backend_symbol_table_processing) PARAMS ((bfd *, elf32_symbol_type *, int));
100 boolean (*elf_backend_section_processing) PARAMS ((bfd *, Elf32_Internal_Shdr *));
101 boolean (*elf_backend_section_from_shdr) PARAMS ((bfd *, Elf32_Internal_Shdr *, char *));
102 boolean (*elf_backend_fake_sections) PARAMS ((bfd *, Elf32_Internal_Shdr *, asection *));
103 boolean (*elf_backend_section_from_bfd_section) PARAMS ((bfd *, Elf32_Internal_Shdr *, asection *));
81187b54
KR		 104};
105
d24928c0
KR		 106struct elf_sym_extra
107{
108 int elf_sym_num; /* sym# after locals/globals are reordered */
109};
110
111typedef struct elf_sym_extra Elf_Sym_Extra;
112
32090b8e
KR		 113struct bfd_elf_arch_map {
114 enum bfd_architecture bfd_arch;
115 int elf_arch;
116};
117
118extern const struct bfd_elf_arch_map bfd_elf_arch_map[];
119extern const int bfd_elf_arch_map_size;
120
121struct bfd_elf_section_data {
122 Elf_Internal_Shdr this_hdr;
123 Elf_Internal_Shdr rel_hdr;
124 int this_idx, rel_idx;
125#if 0
126 Elf_Internal_Shdr str_hdr;
127 int str_idx;
128#endif
129};
130#define elf_section_data(sec) ((struct bfd_elf_section_data*)sec->used_by_bfd)
131#define shdr_name(abfd,shdr) (elf_shstrtab (abfd)->tab + (shdr)->sh_name)
132
133#define get_elf_backend_data(abfd) \
134 ((struct elf_backend_data *) (abfd)->xvec->backend_data)
135
136struct strtab
137{
138 char *tab;
139 int nentries;
140 int length;
141};
142
143/* Some private data is stashed away for future use using the tdata pointer
144 in the bfd structure. */
145
146struct elf_obj_tdata
147{
148 Elf_Internal_Ehdr elf_header[1]; /* Actual data, but ref like ptr */
149 Elf_Internal_Shdr **elf_sect_ptr;
d79ab07c 150 Elf_Internal_Phdr *phdr;
32090b8e
KR		 151 struct strtab *strtab_ptr;
152 int num_locals;
153 int num_globals;
32090b8e
KR		 154 PTR raw_syms; /* Elf_External_Sym* */
155 Elf_Internal_Sym *internal_syms;
156 PTR symbols; /* elf_symbol_type */
d24928c0
KR		 157 Elf_Sym_Extra *sym_extra;
158 asymbol **section_syms; /* STT_SECTION symbols for each section */
159 int num_section_syms; /* number of section_syms allocated */
32090b8e
KR		 160 Elf_Internal_Shdr symtab_hdr;
161 Elf_Internal_Shdr shstrtab_hdr;
162 Elf_Internal_Shdr strtab_hdr;
163 int symtab_section, shstrtab_section, strtab_section;
164 file_ptr next_file_pos;
165 void *prstatus; /* The raw /proc prstatus structure */
166 void *prpsinfo; /* The raw /proc prpsinfo structure */
167};
168
169#define elf_tdata(bfd) ((bfd) -> tdata.elf_obj_data)
170#define elf_elfheader(bfd) (elf_tdata(bfd) -> elf_header)
171#define elf_elfsections(bfd) (elf_tdata(bfd) -> elf_sect_ptr)
172#define elf_shstrtab(bfd) (elf_tdata(bfd) -> strtab_ptr)
173#define elf_onesymtab(bfd) (elf_tdata(bfd) -> symtab_section)
174#define elf_num_locals(bfd) (elf_tdata(bfd) -> num_locals)
175#define elf_num_globals(bfd) (elf_tdata(bfd) -> num_globals)
d24928c0
KR		 176#define elf_sym_extra(bfd) (elf_tdata(bfd) -> sym_extra)
177#define elf_section_syms(bfd) (elf_tdata(bfd) -> section_syms)
178#define elf_num_section_syms(bfd) (elf_tdata(bfd) -> num_section_syms)
32090b8e
KR		 179#define core_prpsinfo(bfd) (elf_tdata(bfd) -> prpsinfo)
180#define core_prstatus(bfd) (elf_tdata(bfd) -> prstatus)
181#define obj_symbols(bfd) ((elf_symbol_type*)(elf_tdata(bfd) -> symbols))
182#define obj_raw_syms(bfd) ((Elf_External_Sym*)(elf_tdata(bfd) -> raw_syms))
183#define obj_internal_syms(bfd) (elf_tdata(bfd) -> internal_syms)
184
185extern char * elf_string_from_elf_section PARAMS ((bfd *, unsigned, unsigned));
186extern char * elf_get_str_section PARAMS ((bfd *, unsigned));
187
188#define bfd_elf32_mkobject bfd_elf_mkobject
189#define bfd_elf64_mkobject bfd_elf_mkobject
190#define elf_mkobject bfd_elf_mkobject
191
153cb9ad 192extern unsigned long bfd_elf_hash PARAMS ((CONST unsigned char *));
7e37f9ff 193
32090b8e
KR		 194extern bfd_reloc_status_type bfd_elf_generic_reloc PARAMS ((bfd *,
195 arelent *,
196 asymbol *,
197 PTR,
198 asection *,
199 bfd *));
998ce1e0 200extern boolean bfd_elf_mkobject PARAMS ((bfd *));
e2a422b8
KR		 201extern Elf_Internal_Shdr *bfd_elf_find_section PARAMS ((bfd *, char *));
202
9942e684 203extern boolean bfd_elf32_write_object_contents PARAMS ((bfd *));
32090b8e
KR		 204extern boolean bfd_elf64_write_object_contents PARAMS ((bfd *));
205
206extern bfd_target *bfd_elf32_object_p PARAMS ((bfd *));
207extern bfd_target *bfd_elf32_core_file_p PARAMS ((bfd *));
9942e684
KR		 208extern char *bfd_elf32_core_file_failing_command PARAMS ((bfd *));
209extern int bfd_elf32_core_file_failing_signal PARAMS ((bfd *));
210extern boolean bfd_elf32_core_file_matches_executable_p PARAMS ((bfd *,
211 bfd *));
212extern boolean bfd_elf32_set_section_contents PARAMS ((bfd *, sec_ptr, PTR,
213 file_ptr,
214 bfd_size_type));
7050286d 215
9942e684
KR		 216extern unsigned int bfd_elf32_get_symtab_upper_bound PARAMS ((bfd *));
217extern unsigned int bfd_elf32_get_symtab PARAMS ((bfd *, asymbol **));
218extern unsigned int bfd_elf32_get_reloc_upper_bound PARAMS ((bfd *, sec_ptr));
219extern unsigned int bfd_elf32_canonicalize_reloc PARAMS ((bfd *, sec_ptr,
220 arelent **,
221 asymbol **));
222extern asymbol *bfd_elf32_make_empty_symbol PARAMS ((bfd *));
223extern void bfd_elf32_print_symbol PARAMS ((bfd *, PTR, asymbol *,
224 bfd_print_symbol_type));
225extern void bfd_elf32_get_symbol_info PARAMS ((bfd *, asymbol *,
7050286d 226 symbol_info *));
9942e684
KR		 227extern alent *bfd_elf32_get_lineno PARAMS ((bfd *, asymbol *));
228extern boolean bfd_elf32_set_arch_mach PARAMS ((bfd *, enum bfd_architecture,
229 unsigned long));
230extern boolean bfd_elf32_find_nearest_line PARAMS ((bfd *, asection *,
231 asymbol **,
232 bfd_vma, CONST char **,
233 CONST char **,
234 unsigned int *));
235extern int bfd_elf32_sizeof_headers PARAMS ((bfd *, boolean));
32090b8e 236extern void bfd_elf32__write_relocs PARAMS ((bfd *, asection *, PTR));
e6858d1b 237extern boolean bfd_elf32_new_section_hook PARAMS ((bfd *, asection *));
81187b54
KR		 238
239/* If the target doesn't have reloc handling written yet: */
9942e684
KR		 240extern void bfd_elf32_no_info_to_howto PARAMS ((bfd *, arelent *,
241 Elf32_Internal_Rela *));
db232882 242
7d9bb6da
KR		 243extern bfd_target *bfd_elf64_object_p PARAMS ((bfd *));
244extern bfd_target *bfd_elf64_core_file_p PARAMS ((bfd *));
7d9bb6da
KR		 245extern char *bfd_elf64_core_file_failing_command PARAMS ((bfd *));
246extern int bfd_elf64_core_file_failing_signal PARAMS ((bfd *));
247extern boolean bfd_elf64_core_file_matches_executable_p PARAMS ((bfd *,
248 bfd *));
249extern boolean bfd_elf64_set_section_contents PARAMS ((bfd *, sec_ptr, PTR,
250 file_ptr,
251 bfd_size_type));
252
253extern unsigned int bfd_elf64_get_symtab_upper_bound PARAMS ((bfd *));
254extern unsigned int bfd_elf64_get_symtab PARAMS ((bfd *, asymbol **));
255extern unsigned int bfd_elf64_get_reloc_upper_bound PARAMS ((bfd *, sec_ptr));
256extern unsigned int bfd_elf64_canonicalize_reloc PARAMS ((bfd *, sec_ptr,
257 arelent **,
258 asymbol **));
259extern asymbol *bfd_elf64_make_empty_symbol PARAMS ((bfd *));
260extern void bfd_elf64_print_symbol PARAMS ((bfd *, PTR, asymbol *,
261 bfd_print_symbol_type));
262extern void bfd_elf64_get_symbol_info PARAMS ((bfd *, asymbol *,
263 symbol_info *));
264extern alent *bfd_elf64_get_lineno PARAMS ((bfd *, asymbol *));
265extern boolean bfd_elf64_set_arch_mach PARAMS ((bfd *, enum bfd_architecture,
266 unsigned long));
267extern boolean bfd_elf64_find_nearest_line PARAMS ((bfd *, asection *,
268 asymbol **,
269 bfd_vma, CONST char **,
270 CONST char **,
271 unsigned int *));
272extern int bfd_elf64_sizeof_headers PARAMS ((bfd *, boolean));
32090b8e 273extern void bfd_elf64__write_relocs PARAMS ((bfd *, asection *, PTR));
7d9bb6da
KR		 274extern boolean bfd_elf64_new_section_hook PARAMS ((bfd *, asection *));
275
276/* If the target doesn't have reloc handling written yet: */
277extern void bfd_elf64_no_info_to_howto PARAMS ((bfd *, arelent *,
278 Elf64_Internal_Rela *));
279
db232882 280#endif /* _LIBELF_H_ */
GDB Binutils - Deliverables
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