Commit | Line | Data |
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252b5132 | 1 | /* coff object file format |
219d1afa | 2 | Copyright (C) 1989-2018 Free Software Foundation, Inc. |
252b5132 RH |
3 | |
4 | This file is part of GAS. | |
5 | ||
6 | GAS is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
ec2655a6 | 8 | the Free Software Foundation; either version 3, or (at your option) |
252b5132 RH |
9 | any later version. |
10 | ||
11 | GAS is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GAS; see the file COPYING. If not, write to the Free | |
4b4da160 NC |
18 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
19 | 02110-1301, USA. */ | |
252b5132 RH |
20 | |
21 | #ifndef OBJ_FORMAT_H | |
22 | #define OBJ_FORMAT_H | |
23 | ||
24 | #define OBJ_COFF 1 | |
25 | ||
252b5132 RH |
26 | #include "targ-cpu.h" |
27 | ||
252b5132 | 28 | /* This internal_lineno crap is to stop namespace pollution from the |
dcd619be | 29 | bfd internal coff headerfile. */ |
252b5132 RH |
30 | #define internal_lineno bfd_internal_lineno |
31 | #include "coff/internal.h" | |
32 | #undef internal_lineno | |
33 | ||
34 | /* CPU-specific setup: */ | |
35 | ||
36 | #ifdef TC_ARM | |
37 | #include "coff/arm.h" | |
38 | #ifndef TARGET_FORMAT | |
39 | #define TARGET_FORMAT "coff-arm" | |
40 | #endif | |
41 | #endif | |
42 | ||
43 | #ifdef TC_PPC | |
44 | #ifdef TE_PE | |
45 | #include "coff/powerpc.h" | |
46 | #else | |
47 | #include "coff/rs6000.h" | |
48 | #endif | |
49 | #endif | |
50 | ||
51 | #ifdef TC_SPARC | |
52 | #include "coff/sparc.h" | |
53 | #endif | |
54 | ||
55 | #ifdef TC_I386 | |
321098a5 | 56 | #ifdef TE_PEP |
99ad8390 NC |
57 | #include "coff/x86_64.h" |
58 | #else | |
252b5132 | 59 | #include "coff/i386.h" |
99ad8390 | 60 | #endif |
252b5132 | 61 | |
252b5132 | 62 | #ifndef TARGET_FORMAT |
99ad8390 NC |
63 | #ifdef TE_PEP |
64 | #define TARGET_FORMAT "coff-x86-64" | |
65 | #else | |
252b5132 RH |
66 | #define TARGET_FORMAT "coff-i386" |
67 | #endif | |
68 | #endif | |
99ad8390 | 69 | #endif |
252b5132 RH |
70 | |
71 | #ifdef TC_M68K | |
72 | #include "coff/m68k.h" | |
73 | #ifndef TARGET_FORMAT | |
74 | #define TARGET_FORMAT "coff-m68k" | |
75 | #endif | |
76 | #endif | |
77 | ||
3c9b82ba NC |
78 | #ifdef TC_Z80 |
79 | #include "coff/z80.h" | |
80 | #define TARGET_FORMAT "coff-z80" | |
81 | #endif | |
82 | ||
252b5132 RH |
83 | #ifdef TC_Z8K |
84 | #include "coff/z8k.h" | |
85 | #define TARGET_FORMAT "coff-z8k" | |
86 | #endif | |
87 | ||
252b5132 | 88 | #ifdef TC_SH |
056350c6 NC |
89 | |
90 | #ifdef TE_PE | |
91 | #define COFF_WITH_PE | |
92 | #endif | |
93 | ||
252b5132 | 94 | #include "coff/sh.h" |
056350c6 NC |
95 | |
96 | #ifdef TE_PE | |
97 | #define TARGET_FORMAT "pe-shl" | |
98 | #else | |
94f592af | 99 | |
252b5132 | 100 | #define TARGET_FORMAT \ |
a245a9aa | 101 | (!target_big_endian \ |
252b5132 RH |
102 | ? (sh_small ? "coff-shl-small" : "coff-shl") \ |
103 | : (sh_small ? "coff-sh-small" : "coff-sh")) | |
94f592af | 104 | |
252b5132 | 105 | #endif |
056350c6 NC |
106 | #endif |
107 | ||
108 | #ifdef TC_MIPS | |
109 | #define COFF_WITH_PE | |
110 | #include "coff/mipspe.h" | |
111 | #undef TARGET_FORMAT | |
112 | #define TARGET_FORMAT "pe-mips" | |
113 | #endif | |
252b5132 | 114 | |
252b5132 RH |
115 | #ifdef TC_TIC30 |
116 | #include "coff/tic30.h" | |
117 | #define TARGET_FORMAT "coff-tic30" | |
118 | #endif | |
119 | ||
026df7c5 NC |
120 | #ifdef TC_TIC4X |
121 | #include "coff/tic4x.h" | |
be33c5dd | 122 | #define TARGET_FORMAT "coff2-tic4x" |
026df7c5 NC |
123 | #endif |
124 | ||
39bec121 TW |
125 | #ifdef TC_TIC54X |
126 | #include "coff/tic54x.h" | |
127 | #define TARGET_FORMAT "coff1-c54x" | |
128 | #endif | |
129 | ||
252b5132 RH |
130 | #ifdef TC_MCORE |
131 | #include "coff/mcore.h" | |
132 | #ifndef TARGET_FORMAT | |
133 | #define TARGET_FORMAT "pe-mcore" | |
134 | #endif | |
135 | #endif | |
136 | ||
977cdf5a | 137 | #ifdef TE_PE |
06e77878 AO |
138 | #define obj_set_weak_hook pecoff_obj_set_weak_hook |
139 | #define obj_clear_weak_hook pecoff_obj_clear_weak_hook | |
977cdf5a NC |
140 | #endif |
141 | ||
252b5132 RH |
142 | #ifndef OBJ_COFF_MAX_AUXENTRIES |
143 | #define OBJ_COFF_MAX_AUXENTRIES 1 | |
977cdf5a | 144 | #endif |
252b5132 | 145 | |
252b5132 | 146 | #define obj_symbol_new_hook coff_obj_symbol_new_hook |
6a2b6326 | 147 | #define obj_symbol_clone_hook coff_obj_symbol_clone_hook |
252b5132 RH |
148 | #define obj_read_begin_hook coff_obj_read_begin_hook |
149 | ||
252b5132 RH |
150 | #include "bfd/libcoff.h" |
151 | ||
152 | #define OUTPUT_FLAVOR bfd_target_coff_flavour | |
153 | ||
252b5132 RH |
154 | /* Alter the field names, for now, until we've fixed up the other |
155 | references to use the new name. */ | |
252b5132 | 156 | #define OBJ_SYMFIELD_TYPE unsigned long |
0a4734dc | 157 | #define sy_obj sy_obj_flags |
252b5132 | 158 | |
a161fe53 AM |
159 | /* We can't use the predefined section symbols in bfd/section.c, as |
160 | COFF symbols have extra fields. See bfd/libcoff.h:coff_symbol_type. */ | |
161 | #ifndef obj_sec_sym_ok_for_reloc | |
162 | #define obj_sec_sym_ok_for_reloc(SEC) ((SEC)->owner != 0) | |
163 | #endif | |
164 | ||
49309057 ILT |
165 | #define SYM_AUXENT(S) \ |
166 | (&coffsymbol (symbol_get_bfdsym (S))->native[1].u.auxent) | |
167 | #define SYM_AUXINFO(S) \ | |
168 | (&coffsymbol (symbol_get_bfdsym (S))->native[1]) | |
252b5132 | 169 | |
3b16e843 | 170 | /* The number of auxiliary entries. */ |
49309057 ILT |
171 | #define S_GET_NUMBER_AUXILIARY(s) \ |
172 | (coffsymbol (symbol_get_bfdsym (s))->native->u.syment.n_numaux) | |
3b16e843 | 173 | /* The number of auxiliary entries. */ |
a5324a3e | 174 | #define S_SET_NUMBER_AUXILIARY(s, v) (S_GET_NUMBER_AUXILIARY (s) = (v)) |
252b5132 | 175 | |
dcd619be | 176 | /* True if a symbol name is in the string table, i.e. its length is > 8. */ |
a5324a3e | 177 | #define S_IS_STRING(s) (strlen (S_GET_NAME (s)) > 8 ? 1 : 0) |
252b5132 | 178 | |
3b16e843 NC |
179 | /* Auxiliary entry macros. SA_ stands for symbol auxiliary. */ |
180 | /* Omit the tv related fields. */ | |
181 | /* Accessors. */ | |
252b5132 RH |
182 | |
183 | #define SA_GET_SYM_TAGNDX(s) (SYM_AUXENT (s)->x_sym.x_tagndx.l) | |
184 | #define SA_GET_SYM_LNNO(s) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno) | |
185 | #define SA_GET_SYM_SIZE(s) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size) | |
186 | #define SA_GET_SYM_FSIZE(s) (SYM_AUXENT (s)->x_sym.x_misc.x_fsize) | |
187 | #define SA_GET_SYM_LNNOPTR(s) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr) | |
188 | #define SA_GET_SYM_ENDNDX(s) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_endndx) | |
189 | #define SA_GET_SYM_DIMEN(s,i) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)]) | |
190 | #define SA_GET_FILE_FNAME(s) (SYM_AUXENT (s)->x_file.x_fname) | |
191 | #define SA_GET_SCN_SCNLEN(s) (SYM_AUXENT (s)->x_scn.x_scnlen) | |
192 | #define SA_GET_SCN_NRELOC(s) (SYM_AUXENT (s)->x_scn.x_nreloc) | |
193 | #define SA_GET_SCN_NLINNO(s) (SYM_AUXENT (s)->x_scn.x_nlinno) | |
194 | ||
a5324a3e NC |
195 | #define SA_SET_SYM_LNNO(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno = (v)) |
196 | #define SA_SET_SYM_SIZE(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size = (v)) | |
197 | #define SA_SET_SYM_FSIZE(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_fsize = (v)) | |
198 | #define SA_SET_SYM_LNNOPTR(s,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr = (v)) | |
199 | #define SA_SET_SYM_DIMEN(s,i,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)] = (v)) | |
200 | #define SA_SET_FILE_FNAME(s,v) strncpy (SYM_AUXENT (s)->x_file.x_fname, (v), FILNMLEN) | |
201 | #define SA_SET_SCN_SCNLEN(s,v) (SYM_AUXENT (s)->x_scn.x_scnlen = (v)) | |
202 | #define SA_SET_SCN_NRELOC(s,v) (SYM_AUXENT (s)->x_scn.x_nreloc = (v)) | |
203 | #define SA_SET_SCN_NLINNO(s,v) (SYM_AUXENT (s)->x_scn.x_nlinno = (v)) | |
252b5132 | 204 | |
3b16e843 | 205 | /* Internal use only definitions. SF_ stands for symbol flags. |
5d6255fe | 206 | |
a8eb42a8 | 207 | These values can be assigned to sy_symbol.ost_flags field of a symbolS. */ |
3739860c | 208 | |
a5324a3e | 209 | #define SF_NORMAL_MASK 0x0000ffff /* bits 12-15 are general purpose. */ |
3739860c | 210 | |
a5324a3e NC |
211 | #define SF_STATICS 0x00001000 /* Mark the .text & all symbols. */ |
212 | #define SF_DEFINED 0x00002000 /* Symbol is defined in this file. */ | |
213 | #define SF_STRING 0x00004000 /* Symbol name length > 8. */ | |
214 | #define SF_LOCAL 0x00008000 /* Symbol must not be emitted. */ | |
3739860c | 215 | |
a5324a3e | 216 | #define SF_DEBUG_MASK 0xffff0000 /* bits 16-31 are debug info. */ |
3739860c | 217 | |
a5324a3e NC |
218 | #define SF_FUNCTION 0x00010000 /* The symbol is a function. */ |
219 | #define SF_PROCESS 0x00020000 /* Process symbol before write. */ | |
220 | #define SF_TAGGED 0x00040000 /* Is associated with a tag. */ | |
221 | #define SF_TAG 0x00080000 /* Is a tag. */ | |
222 | #define SF_DEBUG 0x00100000 /* Is in debug or abs section. */ | |
223 | #define SF_GET_SEGMENT 0x00200000 /* Get the section of the forward symbol. */ | |
dcd619be | 224 | /* All other bits are unused. */ |
252b5132 | 225 | |
3b16e843 | 226 | /* Accessors. */ |
a5324a3e | 227 | #define SF_GET(s) (* symbol_get_obj (s)) |
49309057 ILT |
228 | #define SF_GET_DEBUG(s) (symbol_get_bfdsym (s)->flags & BSF_DEBUGGING) |
229 | #define SF_SET_DEBUG(s) (symbol_get_bfdsym (s)->flags |= BSF_DEBUGGING) | |
252b5132 RH |
230 | #define SF_GET_NORMAL_FIELD(s) (SF_GET (s) & SF_NORMAL_MASK) |
231 | #define SF_GET_DEBUG_FIELD(s) (SF_GET (s) & SF_DEBUG_MASK) | |
232 | #define SF_GET_FILE(s) (SF_GET (s) & SF_FILE) | |
233 | #define SF_GET_STATICS(s) (SF_GET (s) & SF_STATICS) | |
234 | #define SF_GET_DEFINED(s) (SF_GET (s) & SF_DEFINED) | |
235 | #define SF_GET_STRING(s) (SF_GET (s) & SF_STRING) | |
236 | #define SF_GET_LOCAL(s) (SF_GET (s) & SF_LOCAL) | |
237 | #define SF_GET_FUNCTION(s) (SF_GET (s) & SF_FUNCTION) | |
238 | #define SF_GET_PROCESS(s) (SF_GET (s) & SF_PROCESS) | |
239 | #define SF_GET_TAGGED(s) (SF_GET (s) & SF_TAGGED) | |
240 | #define SF_GET_TAG(s) (SF_GET (s) & SF_TAG) | |
241 | #define SF_GET_GET_SEGMENT(s) (SF_GET (s) & SF_GET_SEGMENT) | |
252b5132 | 242 | |
3b16e843 | 243 | /* Modifiers. */ |
252b5132 | 244 | #define SF_SET(s,v) (SF_GET (s) = (v)) |
a5324a3e | 245 | #define SF_SET_NORMAL_FIELD(s,v)(SF_GET (s) |= ((v) & SF_NORMAL_MASK)) |
252b5132 RH |
246 | #define SF_SET_DEBUG_FIELD(s,v) (SF_GET (s) |= ((v) & SF_DEBUG_MASK)) |
247 | #define SF_SET_FILE(s) (SF_GET (s) |= SF_FILE) | |
248 | #define SF_SET_STATICS(s) (SF_GET (s) |= SF_STATICS) | |
249 | #define SF_SET_DEFINED(s) (SF_GET (s) |= SF_DEFINED) | |
250 | #define SF_SET_STRING(s) (SF_GET (s) |= SF_STRING) | |
251 | #define SF_SET_LOCAL(s) (SF_GET (s) |= SF_LOCAL) | |
252 | #define SF_CLEAR_LOCAL(s) (SF_GET (s) &= ~SF_LOCAL) | |
253 | #define SF_SET_FUNCTION(s) (SF_GET (s) |= SF_FUNCTION) | |
254 | #define SF_SET_PROCESS(s) (SF_GET (s) |= SF_PROCESS) | |
255 | #define SF_SET_TAGGED(s) (SF_GET (s) |= SF_TAGGED) | |
256 | #define SF_SET_TAG(s) (SF_GET (s) |= SF_TAG) | |
257 | #define SF_SET_GET_SEGMENT(s) (SF_GET (s) |= SF_GET_SEGMENT) | |
252b5132 | 258 | |
a5324a3e NC |
259 | |
260 | /* Line number handling. */ | |
252b5132 RH |
261 | extern int text_lineno_number; |
262 | extern int coff_line_base; | |
263 | extern int coff_n_line_nos; | |
a5324a3e | 264 | extern symbolS *coff_last_function; |
252b5132 | 265 | |
a5324a3e NC |
266 | #define obj_emit_lineno(WHERE, LINE, FILE_START) abort () |
267 | #define obj_app_file(name, app) c_dot_file_symbol (name, app) | |
268 | #define obj_frob_symbol(S,P) coff_frob_symbol (S, & P) | |
269 | #define obj_frob_section(S) coff_frob_section (S) | |
270 | #define obj_frob_file_after_relocs() coff_frob_file_after_relocs () | |
252b5132 | 271 | #ifndef obj_adjust_symtab |
a5324a3e | 272 | #define obj_adjust_symtab() coff_adjust_symtab () |
252b5132 | 273 | #endif |
252b5132 RH |
274 | |
275 | /* Forward the segment of a forwarded symbol, handle assignments that | |
276 | just copy symbol values, etc. */ | |
2c1c4c62 | 277 | #ifndef OBJ_COPY_SYMBOL_ATTRIBUTES |
252b5132 | 278 | #ifndef TE_I386AIX |
a5324a3e | 279 | #define OBJ_COPY_SYMBOL_ATTRIBUTES(dest, src) \ |
252b5132 RH |
280 | (SF_GET_GET_SEGMENT (dest) \ |
281 | ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \ | |
282 | : 0) | |
283 | #else | |
a5324a3e | 284 | #define OBJ_COPY_SYMBOL_ATTRIBUTES(dest, src) \ |
252b5132 RH |
285 | (SF_GET_GET_SEGMENT (dest) && S_GET_SEGMENT (dest) == SEG_UNKNOWN \ |
286 | ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \ | |
287 | : 0) | |
288 | #endif | |
2c1c4c62 | 289 | #endif |
252b5132 | 290 | |
3b16e843 | 291 | /* Sanity check. */ |
252b5132 | 292 | |
4c63da97 AM |
293 | extern const pseudo_typeS coff_pseudo_table[]; |
294 | ||
295 | #ifndef obj_pop_insert | |
296 | #define obj_pop_insert() pop_insert (coff_pseudo_table) | |
297 | #endif | |
298 | ||
252b5132 RH |
299 | /* In COFF, if a symbol is defined using .def/.val SYM/.endef, it's OK |
300 | to redefine the symbol later on. This can happen if C symbols use | |
301 | a prefix, and a symbol is defined both with and without the prefix, | |
302 | as in start/_start/__start in gcc/libgcc1-test.c. */ | |
303 | #define RESOLVE_SYMBOL_REDEFINITION(sym) \ | |
304 | (SF_GET_GET_SEGMENT (sym) \ | |
305 | ? (sym->sy_frag = frag_now, \ | |
306 | S_SET_VALUE (sym, frag_now_fix ()), \ | |
307 | S_SET_SEGMENT (sym, now_seg), \ | |
308 | 0) \ | |
309 | : 0) | |
310 | ||
311 | /* Stabs in a coff file go into their own section. */ | |
312 | #define SEPARATE_STAB_SECTIONS 1 | |
313 | ||
314 | /* We need 12 bytes at the start of the section to hold some initial | |
315 | information. */ | |
252b5132 RH |
316 | #define INIT_STAB_SECTION(seg) obj_coff_init_stab_section (seg) |
317 | ||
945a1a6b ILT |
318 | /* Store the number of relocations in the section aux entry. */ |
319 | #define SET_SECTION_RELOCS(sec, relocs, n) \ | |
320 | SA_SET_SCN_NRELOC (section_symbol (sec), n) | |
321 | ||
a5324a3e NC |
322 | #define obj_app_file(name, app) c_dot_file_symbol (name, app) |
323 | ||
a5324a3e NC |
324 | extern int S_SET_DATA_TYPE (symbolS *, int); |
325 | extern int S_SET_STORAGE_CLASS (symbolS *, int); | |
326 | extern int S_GET_STORAGE_CLASS (symbolS *); | |
327 | extern void SA_SET_SYM_ENDNDX (symbolS *, symbolS *); | |
328 | extern void coff_add_linesym (symbolS *); | |
329 | extern void c_dot_file_symbol (const char *, int); | |
330 | extern void coff_frob_symbol (symbolS *, int *); | |
331 | extern void coff_adjust_symtab (void); | |
332 | extern void coff_frob_section (segT); | |
333 | extern void coff_adjust_section_syms (bfd *, asection *, void *); | |
334 | extern void coff_frob_file_after_relocs (void); | |
a5324a3e | 335 | extern void coff_obj_symbol_new_hook (symbolS *); |
6a2b6326 | 336 | extern void coff_obj_symbol_clone_hook (symbolS *, symbolS *); |
a5324a3e | 337 | extern void coff_obj_read_begin_hook (void); |
06e77878 AO |
338 | #ifdef TE_PE |
339 | extern void pecoff_obj_set_weak_hook (symbolS *); | |
340 | extern void pecoff_obj_clear_weak_hook (symbolS *); | |
341 | #endif | |
a5324a3e NC |
342 | extern void obj_coff_section (int); |
343 | extern segT obj_coff_add_segment (const char *); | |
344 | extern void obj_coff_section (int); | |
345 | extern void c_dot_file_symbol (const char *, int); | |
346 | extern segT s_get_segment (symbolS *); | |
36bfbdd3 | 347 | #ifndef tc_coff_symbol_emit_hook |
a5324a3e | 348 | extern void tc_coff_symbol_emit_hook (symbolS *); |
36bfbdd3 | 349 | #endif |
a5324a3e NC |
350 | extern void obj_coff_pe_handle_link_once (void); |
351 | extern void obj_coff_init_stab_section (segT); | |
352 | extern void c_section_header (struct internal_scnhdr *, | |
353 | char *, long, long, long, long, | |
354 | long, long, long, long); | |
f3d2b04b KT |
355 | extern void obj_coff_seh_do_final (void); |
356 | ||
357 | #ifndef obj_coff_generate_pdata | |
358 | #define obj_coff_generate_pdata obj_coff_seh_do_final | |
359 | #endif | |
360 | ||
361 | ||
252b5132 | 362 | #endif /* OBJ_FORMAT_H */ |