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252b5132 | 1 | /* ELF object file format. |
49309057 ILT |
2 | Copyright (C) 1992, 93, 94, 95, 96, 97, 98, 1999 |
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 | |
9 | the Free Software Foundation; either version 1, or (at your option) | |
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 | ||
31 | #define OUTPUT_FLAVOR bfd_target_elf_flavour | |
32 | ||
33 | #include <bfd.h> | |
34 | ||
35 | #define BYTES_IN_WORD 4 /* for now */ | |
36 | #include "bfd/elf-bfd.h" | |
37 | ||
49309057 ILT |
38 | #include "targ-cpu.h" |
39 | ||
40 | #ifdef TC_ALPHA | |
41 | #define ECOFF_DEBUGGING alpha_flag_mdebug | |
42 | extern int alpha_flag_mdebug; | |
43 | #endif | |
44 | ||
45 | /* For now, always set ECOFF_DEBUGGING for a MIPS target. */ | |
46 | #ifdef TC_MIPS | |
47 | #ifdef MIPS_STABS_ELF | |
48 | #define ECOFF_DEBUGGING 0 | |
49 | #else | |
50 | #define ECOFF_DEBUGGING 1 | |
51 | #endif /* MIPS_STABS_ELF */ | |
52 | #endif /* TC_MIPS */ | |
53 | ||
252b5132 RH |
54 | /* Additional information we keep for each symbol. */ |
55 | ||
56 | /* FIXME: For some reason, this structure is needed both here and in | |
57 | obj-multi.h. */ | |
58 | #ifndef OBJ_SYMFIELD_TYPE | |
59 | struct elf_obj_sy | |
60 | { | |
49309057 ILT |
61 | /* Whether the symbol has been marked as local. */ |
62 | int local; | |
63 | ||
252b5132 RH |
64 | /* Use this to keep track of .size expressions that involve |
65 | differences that we can't compute yet. */ | |
66 | expressionS *size; | |
67 | ||
68 | /* The name specified by the .symver directive. */ | |
69 | char *versioned_name; | |
49309057 ILT |
70 | |
71 | #ifdef ECOFF_DEBUGGING | |
72 | /* If we are generating ECOFF debugging information, we need some | |
73 | additional fields for each symbol. */ | |
74 | struct efdr *ecoff_file; | |
75 | struct localsym *ecoff_symbol; | |
76 | valueT ecoff_extern_size; | |
77 | #endif | |
252b5132 RH |
78 | }; |
79 | #endif | |
80 | ||
81 | #define OBJ_SYMFIELD_TYPE struct elf_obj_sy | |
82 | ||
252b5132 RH |
83 | #ifndef FALSE |
84 | #define FALSE 0 | |
85 | #define TRUE !FALSE | |
86 | #endif | |
87 | ||
88 | #define obj_begin() elf_begin () | |
89 | extern void elf_begin PARAMS ((void)); | |
90 | ||
91 | /* should be conditional on address size! */ | |
92 | #define elf_symbol(asymbol) ((elf_symbol_type *)(&(asymbol)->the_bfd)) | |
93 | ||
49309057 ILT |
94 | #define S_GET_SIZE(S) \ |
95 | (elf_symbol (symbol_get_bfdsym (S))->internal_elf_sym.st_size) | |
252b5132 | 96 | #define S_SET_SIZE(S,V) \ |
49309057 | 97 | (elf_symbol (symbol_get_bfdsym (S))->internal_elf_sym.st_size = (V)) |
252b5132 | 98 | |
49309057 ILT |
99 | #define S_GET_ALIGN(S) \ |
100 | (elf_symbol (symbol_get_bfdsym (S))->internal_elf_sym.st_value) | |
252b5132 | 101 | #define S_SET_ALIGN(S,V) \ |
49309057 | 102 | (elf_symbol (symbol_get_bfdsym (S))->internal_elf_sym.st_value = (V)) |
252b5132 | 103 | |
49309057 ILT |
104 | #define S_GET_OTHER(S) \ |
105 | (elf_symbol (symbol_get_bfdsym (S))->internal_elf_sym.st_other) | |
252b5132 | 106 | #define S_SET_OTHER(S,V) \ |
49309057 | 107 | (elf_symbol (symbol_get_bfdsym (S))->internal_elf_sym.st_other = (V)) |
252b5132 RH |
108 | |
109 | extern asection *gdb_section; | |
110 | ||
111 | #define obj_frob_file elf_frob_file | |
112 | extern void elf_frob_file PARAMS ((void)); | |
113 | ||
114 | #define obj_frob_file_after_relocs elf_frob_file_after_relocs | |
115 | extern void elf_frob_file_after_relocs PARAMS ((void)); | |
116 | ||
117 | #define obj_app_file elf_file_symbol | |
118 | extern void elf_file_symbol PARAMS ((char *)); | |
119 | ||
120 | extern void obj_elf_section_change_hook PARAMS ((void)); | |
121 | ||
122 | extern void obj_elf_section PARAMS ((int)); | |
123 | extern void obj_elf_previous PARAMS ((int)); | |
124 | extern void obj_elf_version PARAMS ((int)); | |
125 | ||
126 | /* BFD wants to write the udata field, which is a no-no for the | |
127 | globally defined sections. */ | |
128 | #define obj_sec_sym_ok_for_reloc(SEC) ((SEC)->owner != 0) | |
129 | ||
130 | /* When setting one symbol equal to another, by default we probably | |
131 | want them to have the same "size", whatever it means in the current | |
132 | context. */ | |
133 | #define OBJ_COPY_SYMBOL_ATTRIBUTES(DEST,SRC) \ | |
134 | do \ | |
135 | { \ | |
49309057 ILT |
136 | struct elf_obj_sy *srcelf = symbol_get_obj (SRC); \ |
137 | struct elf_obj_sy *destelf = symbol_get_obj (DEST); \ | |
138 | if (srcelf->size) \ | |
252b5132 | 139 | { \ |
49309057 ILT |
140 | if (destelf->size == NULL) \ |
141 | destelf->size = \ | |
252b5132 | 142 | (expressionS *) xmalloc (sizeof (expressionS)); \ |
49309057 | 143 | *destelf->size = *srcelf->size; \ |
252b5132 RH |
144 | } \ |
145 | else \ | |
146 | { \ | |
49309057 ILT |
147 | if (destelf->size != NULL) \ |
148 | free (destelf->size); \ | |
149 | destelf->size = NULL; \ | |
252b5132 RH |
150 | } \ |
151 | S_SET_SIZE ((DEST), S_GET_SIZE (SRC)); \ | |
152 | S_SET_OTHER ((DEST), S_GET_OTHER (SRC)); \ | |
153 | } \ | |
154 | while (0) | |
155 | ||
156 | /* Stabs go in a separate section. */ | |
157 | #define SEPARATE_STAB_SECTIONS 1 | |
158 | ||
159 | /* We need 12 bytes at the start of the section to hold some initial | |
160 | information. */ | |
161 | extern void obj_elf_init_stab_section PARAMS ((segT)); | |
162 | #define INIT_STAB_SECTION(seg) obj_elf_init_stab_section (seg) | |
163 | ||
252b5132 | 164 | #ifdef ECOFF_DEBUGGING |
252b5132 RH |
165 | /* We smuggle stabs in ECOFF rather than using a separate section. |
166 | The Irix linker can not handle a separate stabs section. */ | |
167 | ||
168 | #undef SEPARATE_STAB_SECTIONS | |
169 | #define SEPARATE_STAB_SECTIONS (!ECOFF_DEBUGGING) | |
170 | ||
171 | #undef INIT_STAB_SECTION | |
172 | #define INIT_STAB_SECTION(seg) \ | |
173 | ((void)(ECOFF_DEBUGGING ? 0 : (obj_elf_init_stab_section (seg), 0))) | |
174 | ||
175 | #define OBJ_PROCESS_STAB(seg, what, string, type, other, desc) \ | |
176 | if (ECOFF_DEBUGGING) \ | |
177 | ecoff_stab ((seg), (what), (string), (type), (other), (desc)) | |
178 | #endif /* ECOFF_DEBUGGING */ | |
179 | ||
49309057 | 180 | extern void elf_frob_symbol PARAMS ((symbolS *, int *)); |
252b5132 RH |
181 | #ifndef obj_frob_symbol |
182 | #define obj_frob_symbol(symp, punt) elf_frob_symbol (symp, &punt) | |
183 | #endif | |
184 | ||
185 | extern void elf_pop_insert PARAMS ((void)); | |
186 | #define obj_pop_insert() elf_pop_insert() | |
187 | ||
188 | #ifndef OBJ_MAYBE_ELF | |
189 | #define obj_ecoff_set_ext elf_ecoff_set_ext | |
190 | #ifdef ANSI_PROTOTYPES | |
191 | struct ecoff_extr; | |
192 | #endif | |
49309057 | 193 | extern void elf_ecoff_set_ext PARAMS ((symbolS *, struct ecoff_extr *)); |
252b5132 RH |
194 | #endif |
195 | ||
196 | #endif /* _OBJ_ELF_H */ |