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