Commit | Line | Data |
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252b5132 | 1 | /* ELF object file format. |
f7e42eb4 | 2 | Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 |
49309057 | 3 | Free Software Foundation, Inc. |
252b5132 RH |
4 | |
5 | This file is part of GAS, the GNU Assembler. | |
6 | ||
7 | GAS is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
5110c57e | 9 | the Free Software Foundation; either version 2, or (at your option) |
252b5132 RH |
10 | any later version. |
11 | ||
12 | GAS is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GAS; see the file COPYING. If not, write to the Free | |
19 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
20 | 02111-1307, USA. */ | |
21 | ||
252b5132 RH |
22 | /* HP PA-RISC support was contributed by the Center for Software Science |
23 | at the University of Utah. */ | |
24 | ||
25 | #ifndef _OBJ_ELF_H | |
26 | #define _OBJ_ELF_H | |
27 | ||
28 | #define OBJ_ELF 1 | |
29 | ||
5110c57e HPN |
30 | /* Note that all macros in this file should be wrapped in #ifndef, for |
31 | sake of obj-multi.h which includes this file. */ | |
32 | ||
4ca72d38 | 33 | #ifndef OUTPUT_FLAVOR |
252b5132 | 34 | #define OUTPUT_FLAVOR bfd_target_elf_flavour |
4ca72d38 | 35 | #endif |
252b5132 | 36 | |
3f9b03b5 | 37 | #include "bfd.h" |
252b5132 RH |
38 | |
39 | #define BYTES_IN_WORD 4 /* for now */ | |
40 | #include "bfd/elf-bfd.h" | |
41 | ||
49309057 ILT |
42 | #include "targ-cpu.h" |
43 | ||
44 | #ifdef TC_ALPHA | |
a8316fe2 | 45 | #define ECOFF_DEBUGGING (alpha_flag_mdebug > 0) |
49309057 ILT |
46 | extern int alpha_flag_mdebug; |
47 | #endif | |
48 | ||
49 | /* For now, always set ECOFF_DEBUGGING for a MIPS target. */ | |
50 | #ifdef TC_MIPS | |
51 | #ifdef MIPS_STABS_ELF | |
52 | #define ECOFF_DEBUGGING 0 | |
53 | #else | |
54 | #define ECOFF_DEBUGGING 1 | |
55 | #endif /* MIPS_STABS_ELF */ | |
56 | #endif /* TC_MIPS */ | |
57 | ||
4c63da97 AM |
58 | #ifdef OBJ_MAYBE_ECOFF |
59 | #ifndef ECOFF_DEBUGGING | |
60 | #define ECOFF_DEBUGGING 1 | |
61 | #endif | |
62 | #endif | |
63 | ||
252b5132 | 64 | /* Additional information we keep for each symbol. */ |
252b5132 RH |
65 | struct elf_obj_sy |
66 | { | |
49309057 ILT |
67 | /* Whether the symbol has been marked as local. */ |
68 | int local; | |
69 | ||
252b5132 RH |
70 | /* Use this to keep track of .size expressions that involve |
71 | differences that we can't compute yet. */ | |
72 | expressionS *size; | |
73 | ||
74 | /* The name specified by the .symver directive. */ | |
75 | char *versioned_name; | |
49309057 ILT |
76 | |
77 | #ifdef ECOFF_DEBUGGING | |
78 | /* If we are generating ECOFF debugging information, we need some | |
79 | additional fields for each symbol. */ | |
80 | struct efdr *ecoff_file; | |
81 | struct localsym *ecoff_symbol; | |
82 | valueT ecoff_extern_size; | |
83 | #endif | |
252b5132 | 84 | }; |
252b5132 RH |
85 | |
86 | #define OBJ_SYMFIELD_TYPE struct elf_obj_sy | |
87 | ||
0d2bcfaf NC |
88 | /* Symbol fields used by the ELF back end. */ |
89 | #define ELF_TARGET_SYMBOL_FIELDS int local:1; | |
90 | ||
91 | /* Don't change this; change ELF_TARGET_SYMBOL_FIELDS instead. */ | |
92 | #define TARGET_SYMBOL_FIELDS ELF_TARGET_SYMBOL_FIELDS | |
93 | ||
94 | /* #include "targ-cpu.h" */ | |
95 | ||
252b5132 RH |
96 | #ifndef FALSE |
97 | #define FALSE 0 | |
98 | #define TRUE !FALSE | |
99 | #endif | |
100 | ||
5110c57e | 101 | #ifndef obj_begin |
252b5132 | 102 | #define obj_begin() elf_begin () |
5110c57e | 103 | #endif |
252b5132 RH |
104 | extern void elf_begin PARAMS ((void)); |
105 | ||
106 | /* should be conditional on address size! */ | |
814f6641 | 107 | #define elf_symbol(asymbol) ((elf_symbol_type *) (&(asymbol)->the_bfd)) |
252b5132 | 108 | |
4ca72d38 | 109 | #ifndef S_GET_SIZE |
49309057 ILT |
110 | #define S_GET_SIZE(S) \ |
111 | (elf_symbol (symbol_get_bfdsym (S))->internal_elf_sym.st_size) | |
4ca72d38 AM |
112 | #endif |
113 | #ifndef S_SET_SIZE | |
252b5132 | 114 | #define S_SET_SIZE(S,V) \ |
49309057 | 115 | (elf_symbol (symbol_get_bfdsym (S))->internal_elf_sym.st_size = (V)) |
4ca72d38 | 116 | #endif |
252b5132 | 117 | |
4ca72d38 | 118 | #ifndef S_GET_ALIGN |
49309057 ILT |
119 | #define S_GET_ALIGN(S) \ |
120 | (elf_symbol (symbol_get_bfdsym (S))->internal_elf_sym.st_value) | |
4ca72d38 AM |
121 | #endif |
122 | #ifndef S_SET_ALIGN | |
252b5132 | 123 | #define S_SET_ALIGN(S,V) \ |
49309057 | 124 | (elf_symbol (symbol_get_bfdsym (S))->internal_elf_sym.st_value = (V)) |
4ca72d38 | 125 | #endif |
252b5132 | 126 | |
4c63da97 AM |
127 | int elf_s_get_other PARAMS ((symbolS *)); |
128 | #ifndef S_GET_OTHER | |
129 | #define S_GET_OTHER(S) (elf_s_get_other (S)) | |
130 | #endif | |
131 | #ifndef S_SET_OTHER | |
252b5132 | 132 | #define S_SET_OTHER(S,V) \ |
49309057 | 133 | (elf_symbol (symbol_get_bfdsym (S))->internal_elf_sym.st_other = (V)) |
4c63da97 | 134 | #endif |
252b5132 RH |
135 | |
136 | extern asection *gdb_section; | |
137 | ||
4ca72d38 | 138 | #ifndef obj_frob_file |
252b5132 | 139 | #define obj_frob_file elf_frob_file |
4ca72d38 | 140 | #endif |
252b5132 RH |
141 | extern void elf_frob_file PARAMS ((void)); |
142 | ||
339681c0 L |
143 | #ifndef obj_frob_file_before_adjust |
144 | #define obj_frob_file_before_adjust elf_frob_file_before_adjust | |
145 | #endif | |
146 | extern void elf_frob_file_before_adjust PARAMS ((void)); | |
147 | ||
4ca72d38 | 148 | #ifndef obj_frob_file_after_relocs |
252b5132 | 149 | #define obj_frob_file_after_relocs elf_frob_file_after_relocs |
4ca72d38 | 150 | #endif |
252b5132 RH |
151 | extern void elf_frob_file_after_relocs PARAMS ((void)); |
152 | ||
5110c57e | 153 | #ifndef obj_app_file |
252b5132 | 154 | #define obj_app_file elf_file_symbol |
5110c57e HPN |
155 | #endif |
156 | extern void elf_file_symbol PARAMS ((const char *)); | |
252b5132 RH |
157 | |
158 | extern void obj_elf_section_change_hook PARAMS ((void)); | |
159 | ||
160 | extern void obj_elf_section PARAMS ((int)); | |
161 | extern void obj_elf_previous PARAMS ((int)); | |
162 | extern void obj_elf_version PARAMS ((int)); | |
40b10cc7 NC |
163 | extern void obj_elf_common PARAMS ((int)); |
164 | extern void obj_elf_data PARAMS ((int)); | |
165 | extern void obj_elf_text PARAMS ((int)); | |
904a31bf AM |
166 | extern struct fix *obj_elf_vtable_inherit PARAMS ((int)); |
167 | extern struct fix *obj_elf_vtable_entry PARAMS ((int)); | |
252b5132 RH |
168 | |
169 | /* BFD wants to write the udata field, which is a no-no for the | |
170 | globally defined sections. */ | |
4ca72d38 | 171 | #ifndef obj_sec_sym_ok_for_reloc |
252b5132 | 172 | #define obj_sec_sym_ok_for_reloc(SEC) ((SEC)->owner != 0) |
4ca72d38 | 173 | #endif |
252b5132 | 174 | |
4c63da97 AM |
175 | void elf_obj_read_begin_hook PARAMS ((void)); |
176 | #ifndef obj_read_begin_hook | |
177 | #define obj_read_begin_hook elf_obj_read_begin_hook | |
178 | #endif | |
179 | ||
180 | void elf_obj_symbol_new_hook PARAMS ((symbolS *)); | |
181 | #ifndef obj_symbol_new_hook | |
182 | #define obj_symbol_new_hook elf_obj_symbol_new_hook | |
183 | #endif | |
184 | ||
252b5132 RH |
185 | /* When setting one symbol equal to another, by default we probably |
186 | want them to have the same "size", whatever it means in the current | |
187 | context. */ | |
4ca72d38 | 188 | #ifndef OBJ_COPY_SYMBOL_ATTRIBUTES |
252b5132 RH |
189 | #define OBJ_COPY_SYMBOL_ATTRIBUTES(DEST,SRC) \ |
190 | do \ | |
191 | { \ | |
49309057 ILT |
192 | struct elf_obj_sy *srcelf = symbol_get_obj (SRC); \ |
193 | struct elf_obj_sy *destelf = symbol_get_obj (DEST); \ | |
194 | if (srcelf->size) \ | |
252b5132 | 195 | { \ |
49309057 ILT |
196 | if (destelf->size == NULL) \ |
197 | destelf->size = \ | |
252b5132 | 198 | (expressionS *) xmalloc (sizeof (expressionS)); \ |
49309057 | 199 | *destelf->size = *srcelf->size; \ |
252b5132 RH |
200 | } \ |
201 | else \ | |
202 | { \ | |
49309057 ILT |
203 | if (destelf->size != NULL) \ |
204 | free (destelf->size); \ | |
205 | destelf->size = NULL; \ | |
252b5132 RH |
206 | } \ |
207 | S_SET_SIZE ((DEST), S_GET_SIZE (SRC)); \ | |
208 | S_SET_OTHER ((DEST), S_GET_OTHER (SRC)); \ | |
209 | } \ | |
210 | while (0) | |
4ca72d38 | 211 | #endif |
252b5132 | 212 | |
5110c57e HPN |
213 | #ifndef SEPARATE_STAB_SECTIONS |
214 | /* Avoid ifndef each separate macro setting by wrapping the whole of the | |
215 | stab group on the assumption that whoever sets SEPARATE_STAB_SECTIONS | |
216 | caters to ECOFF_DEBUGGING and the right setting of INIT_STAB_SECTIONS | |
217 | and OBJ_PROCESS_STAB too, without needing the tweaks below. */ | |
218 | ||
252b5132 RH |
219 | /* Stabs go in a separate section. */ |
220 | #define SEPARATE_STAB_SECTIONS 1 | |
221 | ||
222 | /* We need 12 bytes at the start of the section to hold some initial | |
223 | information. */ | |
224 | extern void obj_elf_init_stab_section PARAMS ((segT)); | |
225 | #define INIT_STAB_SECTION(seg) obj_elf_init_stab_section (seg) | |
226 | ||
252b5132 | 227 | #ifdef ECOFF_DEBUGGING |
252b5132 RH |
228 | /* We smuggle stabs in ECOFF rather than using a separate section. |
229 | The Irix linker can not handle a separate stabs section. */ | |
230 | ||
231 | #undef SEPARATE_STAB_SECTIONS | |
232 | #define SEPARATE_STAB_SECTIONS (!ECOFF_DEBUGGING) | |
233 | ||
234 | #undef INIT_STAB_SECTION | |
235 | #define INIT_STAB_SECTION(seg) \ | |
814f6641 | 236 | ((void) (ECOFF_DEBUGGING ? 0 : (obj_elf_init_stab_section (seg), 0))) |
252b5132 | 237 | |
4ca72d38 | 238 | #undef OBJ_PROCESS_STAB |
252b5132 RH |
239 | #define OBJ_PROCESS_STAB(seg, what, string, type, other, desc) \ |
240 | if (ECOFF_DEBUGGING) \ | |
241 | ecoff_stab ((seg), (what), (string), (type), (other), (desc)) | |
242 | #endif /* ECOFF_DEBUGGING */ | |
243 | ||
bf514e21 | 244 | #endif /* SEPARATE_STAB_SECTIONS not defined. */ |
5110c57e | 245 | |
49309057 | 246 | extern void elf_frob_symbol PARAMS ((symbolS *, int *)); |
252b5132 RH |
247 | #ifndef obj_frob_symbol |
248 | #define obj_frob_symbol(symp, punt) elf_frob_symbol (symp, &punt) | |
249 | #endif | |
250 | ||
251 | extern void elf_pop_insert PARAMS ((void)); | |
4ca72d38 | 252 | #ifndef obj_pop_insert |
252b5132 | 253 | #define obj_pop_insert() elf_pop_insert() |
4ca72d38 | 254 | #endif |
252b5132 RH |
255 | |
256 | #ifndef OBJ_MAYBE_ELF | |
257 | #define obj_ecoff_set_ext elf_ecoff_set_ext | |
258 | #ifdef ANSI_PROTOTYPES | |
259 | struct ecoff_extr; | |
260 | #endif | |
49309057 | 261 | extern void elf_ecoff_set_ext PARAMS ((symbolS *, struct ecoff_extr *)); |
252b5132 RH |
262 | #endif |
263 | ||
264 | #endif /* _OBJ_ELF_H */ |