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Commit | Line | Data |
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252b5132 | 1 | /* coff object file format |
f7e42eb4 | 2 | Copyright 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, |
f17c130b | 3 | 1999, 2000, 2001, 2002, 2003, 2004, 2005 |
252b5132 RH |
4 | Free Software Foundation, Inc. |
5 | ||
6 | This file is part of GAS. | |
7 | ||
8 | GAS is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2, or (at your option) | |
11 | any later version. | |
12 | ||
13 | GAS is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GAS; see the file COPYING. If not, write to the Free | |
4b4da160 NC |
20 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
21 | 02110-1301, USA. */ | |
252b5132 RH |
22 | |
23 | #define OBJ_HEADER "obj-coff.h" | |
24 | ||
25 | #include "as.h" | |
26 | #include "obstack.h" | |
27 | #include "subsegs.h" | |
28 | ||
977cdf5a NC |
29 | #ifdef TE_PE |
30 | #include "coff/pe.h" | |
31 | #endif | |
32 | ||
a5324a3e NC |
33 | #define streq(a,b) (strcmp ((a), (b)) == 0) |
34 | #define strneq(a,b,n) (strncmp ((a), (b), (n)) == 0) | |
35 | ||
252b5132 RH |
36 | /* I think this is probably always correct. */ |
37 | #ifndef KEEP_RELOC_INFO | |
38 | #define KEEP_RELOC_INFO | |
39 | #endif | |
40 | ||
7be1c489 AM |
41 | /* obj_coff_section will use this macro to set a new section's |
42 | attributes when a directive has no valid flags or the "w" flag is | |
43 | used. This default should be appropriate for most. */ | |
b8a9dcab NC |
44 | #ifndef TC_COFF_SECTION_DEFAULT_ATTRIBUTES |
45 | #define TC_COFF_SECTION_DEFAULT_ATTRIBUTES (SEC_LOAD | SEC_DATA) | |
46 | #endif | |
47 | ||
8d28c9d7 AM |
48 | /* This is used to hold the symbol built by a sequence of pseudo-ops |
49 | from .def and .endef. */ | |
50 | static symbolS *def_symbol_in_progress; | |
977cdf5a NC |
51 | #ifdef TE_PE |
52 | /* PE weak alternate symbols begin with this string. */ | |
53 | static const char weak_altprefix[] = ".weak."; | |
54 | #endif /* TE_PE */ | |
8d28c9d7 AM |
55 | |
56 | typedef struct | |
57 | { | |
58 | unsigned long chunk_size; | |
59 | unsigned long element_size; | |
60 | unsigned long size; | |
61 | char *data; | |
62 | unsigned long pointer; | |
63 | } | |
64 | stack; | |
65 | ||
252b5132 | 66 | \f |
a5324a3e | 67 | /* Stack stuff. */ |
252b5132 RH |
68 | |
69 | static stack * | |
a5324a3e NC |
70 | stack_init (unsigned long chunk_size, |
71 | unsigned long element_size) | |
252b5132 RH |
72 | { |
73 | stack *st; | |
74 | ||
a5324a3e | 75 | st = malloc (sizeof (* st)); |
252b5132 | 76 | if (!st) |
a5324a3e | 77 | return NULL; |
252b5132 RH |
78 | st->data = malloc (chunk_size); |
79 | if (!st->data) | |
80 | { | |
81 | free (st); | |
a5324a3e | 82 | return NULL; |
252b5132 RH |
83 | } |
84 | st->pointer = 0; | |
85 | st->size = chunk_size; | |
86 | st->chunk_size = chunk_size; | |
87 | st->element_size = element_size; | |
88 | return st; | |
89 | } | |
90 | ||
252b5132 | 91 | static char * |
a5324a3e | 92 | stack_push (stack *st, char *element) |
252b5132 RH |
93 | { |
94 | if (st->pointer + st->element_size >= st->size) | |
95 | { | |
96 | st->size += st->chunk_size; | |
a5324a3e NC |
97 | if ((st->data = xrealloc (st->data, st->size)) == NULL) |
98 | return NULL; | |
252b5132 RH |
99 | } |
100 | memcpy (st->data + st->pointer, element, st->element_size); | |
101 | st->pointer += st->element_size; | |
102 | return st->data + st->pointer; | |
103 | } | |
104 | ||
105 | static char * | |
a5324a3e | 106 | stack_pop (stack *st) |
252b5132 RH |
107 | { |
108 | if (st->pointer < st->element_size) | |
109 | { | |
110 | st->pointer = 0; | |
a5324a3e | 111 | return NULL; |
252b5132 RH |
112 | } |
113 | st->pointer -= st->element_size; | |
114 | return st->data + st->pointer; | |
115 | } | |
116 | \f | |
a5324a3e | 117 | /* Maintain a list of the tagnames of the structures. */ |
252b5132 RH |
118 | |
119 | static struct hash_control *tag_hash; | |
120 | ||
121 | static void | |
a5324a3e | 122 | tag_init (void) |
252b5132 RH |
123 | { |
124 | tag_hash = hash_new (); | |
125 | } | |
126 | ||
127 | static void | |
a5324a3e | 128 | tag_insert (const char *name, symbolS *symbolP) |
252b5132 RH |
129 | { |
130 | const char *error_string; | |
131 | ||
132 | if ((error_string = hash_jam (tag_hash, name, (char *) symbolP))) | |
a5324a3e NC |
133 | as_fatal (_("Inserting \"%s\" into structure table failed: %s"), |
134 | name, error_string); | |
252b5132 RH |
135 | } |
136 | ||
137 | static symbolS * | |
a5324a3e | 138 | tag_find (char *name) |
252b5132 | 139 | { |
252b5132 RH |
140 | return (symbolS *) hash_find (tag_hash, name); |
141 | } | |
142 | ||
143 | static symbolS * | |
a5324a3e | 144 | tag_find_or_make (char *name) |
252b5132 RH |
145 | { |
146 | symbolS *symbolP; | |
147 | ||
148 | if ((symbolP = tag_find (name)) == NULL) | |
149 | { | |
150 | symbolP = symbol_new (name, undefined_section, | |
151 | 0, &zero_address_frag); | |
152 | ||
153 | tag_insert (S_GET_NAME (symbolP), symbolP); | |
252b5132 | 154 | symbol_table_insert (symbolP); |
a5324a3e | 155 | } |
252b5132 RH |
156 | |
157 | return symbolP; | |
158 | } | |
159 | ||
160 | /* We accept the .bss directive to set the section for backward | |
161 | compatibility with earlier versions of gas. */ | |
162 | ||
163 | static void | |
a5324a3e | 164 | obj_coff_bss (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
165 | { |
166 | if (*input_line_pointer == '\n') | |
167 | subseg_new (".bss", get_absolute_expression ()); | |
168 | else | |
169 | s_lcomm (0); | |
170 | } | |
171 | ||
252b5132 | 172 | #define GET_FILENAME_STRING(X) \ |
a5324a3e | 173 | ((char *) (&((X)->sy_symbol.ost_auxent->x_file.x_n.x_offset))[1]) |
252b5132 RH |
174 | |
175 | /* @@ Ick. */ | |
176 | static segT | |
a5324a3e | 177 | fetch_coff_debug_section (void) |
252b5132 RH |
178 | { |
179 | static segT debug_section; | |
a5324a3e | 180 | |
252b5132 RH |
181 | if (!debug_section) |
182 | { | |
5a38dc70 | 183 | const asymbol *s; |
a5324a3e NC |
184 | |
185 | s = bfd_make_debug_symbol (stdoutput, NULL, 0); | |
252b5132 RH |
186 | assert (s != 0); |
187 | debug_section = s->section; | |
188 | } | |
189 | return debug_section; | |
190 | } | |
191 | ||
192 | void | |
a5324a3e | 193 | SA_SET_SYM_ENDNDX (symbolS *sym, symbolS *val) |
252b5132 RH |
194 | { |
195 | combined_entry_type *entry, *p; | |
196 | ||
49309057 ILT |
197 | entry = &coffsymbol (symbol_get_bfdsym (sym))->native[1]; |
198 | p = coffsymbol (symbol_get_bfdsym (val))->native; | |
252b5132 RH |
199 | entry->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p = p; |
200 | entry->fix_end = 1; | |
201 | } | |
202 | ||
203 | static void | |
a5324a3e | 204 | SA_SET_SYM_TAGNDX (symbolS *sym, symbolS *val) |
252b5132 RH |
205 | { |
206 | combined_entry_type *entry, *p; | |
207 | ||
49309057 ILT |
208 | entry = &coffsymbol (symbol_get_bfdsym (sym))->native[1]; |
209 | p = coffsymbol (symbol_get_bfdsym (val))->native; | |
252b5132 RH |
210 | entry->u.auxent.x_sym.x_tagndx.p = p; |
211 | entry->fix_tag = 1; | |
212 | } | |
213 | ||
214 | static int | |
a5324a3e | 215 | S_GET_DATA_TYPE (symbolS *sym) |
252b5132 | 216 | { |
49309057 | 217 | return coffsymbol (symbol_get_bfdsym (sym))->native->u.syment.n_type; |
252b5132 RH |
218 | } |
219 | ||
220 | int | |
a5324a3e | 221 | S_SET_DATA_TYPE (symbolS *sym, int val) |
252b5132 | 222 | { |
49309057 | 223 | coffsymbol (symbol_get_bfdsym (sym))->native->u.syment.n_type = val; |
252b5132 RH |
224 | return val; |
225 | } | |
226 | ||
227 | int | |
a5324a3e | 228 | S_GET_STORAGE_CLASS (symbolS *sym) |
252b5132 | 229 | { |
49309057 | 230 | return coffsymbol (symbol_get_bfdsym (sym))->native->u.syment.n_sclass; |
252b5132 RH |
231 | } |
232 | ||
233 | int | |
a5324a3e | 234 | S_SET_STORAGE_CLASS (symbolS *sym, int val) |
252b5132 | 235 | { |
49309057 | 236 | coffsymbol (symbol_get_bfdsym (sym))->native->u.syment.n_sclass = val; |
252b5132 RH |
237 | return val; |
238 | } | |
239 | ||
dcd619be | 240 | /* Merge a debug symbol containing debug information into a normal symbol. */ |
252b5132 | 241 | |
a5324a3e NC |
242 | static void |
243 | c_symbol_merge (symbolS *debug, symbolS *normal) | |
252b5132 RH |
244 | { |
245 | S_SET_DATA_TYPE (normal, S_GET_DATA_TYPE (debug)); | |
246 | S_SET_STORAGE_CLASS (normal, S_GET_STORAGE_CLASS (debug)); | |
247 | ||
248 | if (S_GET_NUMBER_AUXILIARY (debug) > S_GET_NUMBER_AUXILIARY (normal)) | |
a5324a3e NC |
249 | /* Take the most we have. */ |
250 | S_SET_NUMBER_AUXILIARY (normal, S_GET_NUMBER_AUXILIARY (debug)); | |
252b5132 RH |
251 | |
252 | if (S_GET_NUMBER_AUXILIARY (debug) > 0) | |
a5324a3e NC |
253 | /* Move all the auxiliary information. */ |
254 | memcpy (SYM_AUXINFO (normal), SYM_AUXINFO (debug), | |
255 | (S_GET_NUMBER_AUXILIARY (debug) | |
256 | * sizeof (*SYM_AUXINFO (debug)))); | |
252b5132 | 257 | |
dcd619be | 258 | /* Move the debug flags. */ |
252b5132 RH |
259 | SF_SET_DEBUG_FIELD (normal, SF_GET_DEBUG_FIELD (debug)); |
260 | } | |
261 | ||
262 | void | |
a4528eeb | 263 | c_dot_file_symbol (const char *filename, int appfile ATTRIBUTE_UNUSED) |
252b5132 RH |
264 | { |
265 | symbolS *symbolP; | |
266 | ||
0561a208 ILT |
267 | /* BFD converts filename to a .file symbol with an aux entry. It |
268 | also handles chaining. */ | |
252b5132 RH |
269 | symbolP = symbol_new (filename, bfd_abs_section_ptr, 0, &zero_address_frag); |
270 | ||
271 | S_SET_STORAGE_CLASS (symbolP, C_FILE); | |
272 | S_SET_NUMBER_AUXILIARY (symbolP, 1); | |
273 | ||
49309057 | 274 | symbol_get_bfdsym (symbolP)->flags = BSF_DEBUGGING; |
252b5132 RH |
275 | |
276 | #ifndef NO_LISTING | |
277 | { | |
278 | extern int listing; | |
a5324a3e | 279 | |
252b5132 | 280 | if (listing) |
a5324a3e | 281 | listing_source_file (filename); |
252b5132 RH |
282 | } |
283 | #endif | |
284 | ||
a5324a3e | 285 | /* Make sure that the symbol is first on the symbol chain. */ |
252b5132 RH |
286 | if (symbol_rootP != symbolP) |
287 | { | |
288 | symbol_remove (symbolP, &symbol_rootP, &symbol_lastP); | |
289 | symbol_insert (symbolP, symbol_rootP, &symbol_rootP, &symbol_lastP); | |
a5324a3e | 290 | } |
252b5132 RH |
291 | } |
292 | ||
a5324a3e | 293 | /* Line number handling. */ |
252b5132 | 294 | |
a5324a3e NC |
295 | struct line_no |
296 | { | |
252b5132 RH |
297 | struct line_no *next; |
298 | fragS *frag; | |
299 | alent l; | |
300 | }; | |
301 | ||
302 | int coff_line_base; | |
303 | ||
304 | /* Symbol of last function, which we should hang line#s off of. */ | |
305 | static symbolS *line_fsym; | |
306 | ||
307 | #define in_function() (line_fsym != 0) | |
308 | #define clear_function() (line_fsym = 0) | |
309 | #define set_function(F) (line_fsym = (F), coff_add_linesym (F)) | |
310 | ||
311 | \f | |
312 | void | |
a5324a3e | 313 | coff_obj_symbol_new_hook (symbolS *symbolP) |
252b5132 RH |
314 | { |
315 | long sz = (OBJ_COFF_MAX_AUXENTRIES + 1) * sizeof (combined_entry_type); | |
a5324a3e | 316 | char * s = xmalloc (sz); |
dcd619be | 317 | |
252b5132 | 318 | memset (s, 0, sz); |
49309057 | 319 | coffsymbol (symbol_get_bfdsym (symbolP))->native = (combined_entry_type *) s; |
252b5132 RH |
320 | |
321 | S_SET_DATA_TYPE (symbolP, T_NULL); | |
322 | S_SET_STORAGE_CLASS (symbolP, 0); | |
323 | S_SET_NUMBER_AUXILIARY (symbolP, 0); | |
324 | ||
325 | if (S_IS_STRING (symbolP)) | |
326 | SF_SET_STRING (symbolP); | |
dcd619be | 327 | |
252b5132 RH |
328 | if (S_IS_LOCAL (symbolP)) |
329 | SF_SET_LOCAL (symbolP); | |
330 | } | |
331 | ||
332 | \f | |
a5324a3e | 333 | /* Handle .ln directives. */ |
252b5132 RH |
334 | |
335 | static symbolS *current_lineno_sym; | |
336 | static struct line_no *line_nos; | |
a5324a3e | 337 | /* FIXME: Blindly assume all .ln directives will be in the .text section. */ |
252b5132 RH |
338 | int coff_n_line_nos; |
339 | ||
340 | static void | |
a5324a3e | 341 | add_lineno (fragS * frag, addressT offset, int num) |
252b5132 | 342 | { |
a5324a3e NC |
343 | struct line_no * new_line = xmalloc (sizeof (* new_line)); |
344 | ||
252b5132 | 345 | if (!current_lineno_sym) |
a5324a3e | 346 | abort (); |
6877bb43 TR |
347 | |
348 | #ifndef OBJ_XCOFF | |
a5324a3e | 349 | /* The native aix assembler accepts negative line number. */ |
6877bb43 | 350 | |
dcd619be | 351 | if (num <= 0) |
e8a3ab75 ILT |
352 | { |
353 | /* Zero is used as an end marker in the file. */ | |
b985eaa8 ILT |
354 | as_warn (_("Line numbers must be positive integers\n")); |
355 | num = 1; | |
e8a3ab75 | 356 | } |
6877bb43 | 357 | #endif /* OBJ_XCOFF */ |
252b5132 RH |
358 | new_line->next = line_nos; |
359 | new_line->frag = frag; | |
360 | new_line->l.line_number = num; | |
361 | new_line->l.u.offset = offset; | |
362 | line_nos = new_line; | |
363 | coff_n_line_nos++; | |
364 | } | |
365 | ||
366 | void | |
a5324a3e | 367 | coff_add_linesym (symbolS *sym) |
252b5132 RH |
368 | { |
369 | if (line_nos) | |
370 | { | |
49309057 ILT |
371 | coffsymbol (symbol_get_bfdsym (current_lineno_sym))->lineno = |
372 | (alent *) line_nos; | |
252b5132 RH |
373 | coff_n_line_nos++; |
374 | line_nos = 0; | |
375 | } | |
376 | current_lineno_sym = sym; | |
377 | } | |
378 | ||
379 | static void | |
a5324a3e | 380 | obj_coff_ln (int appline) |
252b5132 RH |
381 | { |
382 | int l; | |
383 | ||
384 | if (! appline && def_symbol_in_progress != NULL) | |
385 | { | |
386 | as_warn (_(".ln pseudo-op inside .def/.endef: ignored.")); | |
387 | demand_empty_rest_of_line (); | |
388 | return; | |
389 | } | |
390 | ||
391 | l = get_absolute_expression (); | |
252b5132 | 392 | |
e237d851 NC |
393 | /* If there is no lineno symbol, treat a .ln |
394 | directive as if it were a .appline directive. */ | |
395 | if (appline || current_lineno_sym == NULL) | |
252b5132 | 396 | new_logical_line ((char *) NULL, l - 1); |
e237d851 NC |
397 | else |
398 | add_lineno (frag_now, frag_now_fix (), l); | |
252b5132 RH |
399 | |
400 | #ifndef NO_LISTING | |
401 | { | |
402 | extern int listing; | |
403 | ||
404 | if (listing) | |
405 | { | |
406 | if (! appline) | |
407 | l += coff_line_base - 1; | |
408 | listing_source_line (l); | |
409 | } | |
410 | } | |
411 | #endif | |
412 | ||
413 | demand_empty_rest_of_line (); | |
414 | } | |
415 | ||
28428223 ILT |
416 | /* .loc is essentially the same as .ln; parse it for assembler |
417 | compatibility. */ | |
418 | ||
419 | static void | |
a5324a3e | 420 | obj_coff_loc (int ignore ATTRIBUTE_UNUSED) |
28428223 ILT |
421 | { |
422 | int lineno; | |
423 | ||
424 | /* FIXME: Why do we need this check? We need it for ECOFF, but why | |
425 | do we need it for COFF? */ | |
426 | if (now_seg != text_section) | |
427 | { | |
428 | as_warn (_(".loc outside of .text")); | |
429 | demand_empty_rest_of_line (); | |
430 | return; | |
431 | } | |
432 | ||
433 | if (def_symbol_in_progress != NULL) | |
434 | { | |
435 | as_warn (_(".loc pseudo-op inside .def/.endef: ignored.")); | |
436 | demand_empty_rest_of_line (); | |
437 | return; | |
438 | } | |
439 | ||
440 | /* Skip the file number. */ | |
441 | SKIP_WHITESPACE (); | |
442 | get_absolute_expression (); | |
443 | SKIP_WHITESPACE (); | |
444 | ||
445 | lineno = get_absolute_expression (); | |
446 | ||
447 | #ifndef NO_LISTING | |
448 | { | |
449 | extern int listing; | |
450 | ||
451 | if (listing) | |
452 | { | |
cc8a6dd0 | 453 | lineno += coff_line_base - 1; |
28428223 ILT |
454 | listing_source_line (lineno); |
455 | } | |
456 | } | |
457 | #endif | |
458 | ||
459 | demand_empty_rest_of_line (); | |
460 | ||
461 | add_lineno (frag_now, frag_now_fix (), lineno); | |
462 | } | |
463 | ||
7a6284c4 ILT |
464 | /* Handle the .ident pseudo-op. */ |
465 | ||
466 | static void | |
a5324a3e | 467 | obj_coff_ident (int ignore ATTRIBUTE_UNUSED) |
7a6284c4 ILT |
468 | { |
469 | segT current_seg = now_seg; | |
470 | subsegT current_subseg = now_subseg; | |
471 | ||
472 | #ifdef TE_PE | |
473 | { | |
474 | segT sec; | |
475 | ||
476 | /* We could put it in .comment, but that creates an extra section | |
477 | that shouldn't be loaded into memory, which requires linker | |
478 | changes... For now, until proven otherwise, use .rdata. */ | |
479 | sec = subseg_new (".rdata$zzz", 0); | |
480 | bfd_set_section_flags (stdoutput, sec, | |
481 | ((SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA) | |
482 | & bfd_applicable_section_flags (stdoutput))); | |
483 | } | |
484 | #else | |
485 | subseg_new (".comment", 0); | |
486 | #endif | |
487 | ||
488 | stringer (1); | |
489 | subseg_set (current_seg, current_subseg); | |
490 | } | |
491 | ||
a5324a3e NC |
492 | /* Handle .def directives. |
493 | ||
494 | One might ask : why can't we symbol_new if the symbol does not | |
495 | already exist and fill it with debug information. Because of | |
496 | the C_EFCN special symbol. It would clobber the value of the | |
497 | function symbol before we have a chance to notice that it is | |
498 | a C_EFCN. And a second reason is that the code is more clear this | |
499 | way. (at least I think it is :-). */ | |
252b5132 RH |
500 | |
501 | #define SKIP_SEMI_COLON() while (*input_line_pointer++ != ';') | |
502 | #define SKIP_WHITESPACES() while (*input_line_pointer == ' ' || \ | |
a5324a3e NC |
503 | *input_line_pointer == '\t') \ |
504 | input_line_pointer++; | |
252b5132 RH |
505 | |
506 | static void | |
a5324a3e | 507 | obj_coff_def (int what ATTRIBUTE_UNUSED) |
252b5132 | 508 | { |
a5324a3e NC |
509 | char name_end; /* Char after the end of name. */ |
510 | char *symbol_name; /* Name of the debug symbol. */ | |
511 | char *symbol_name_copy; /* Temporary copy of the name. */ | |
252b5132 RH |
512 | unsigned int symbol_name_length; |
513 | ||
514 | if (def_symbol_in_progress != NULL) | |
515 | { | |
516 | as_warn (_(".def pseudo-op used inside of .def/.endef: ignored.")); | |
517 | demand_empty_rest_of_line (); | |
518 | return; | |
a5324a3e | 519 | } |
252b5132 RH |
520 | |
521 | SKIP_WHITESPACES (); | |
522 | ||
523 | symbol_name = input_line_pointer; | |
252b5132 RH |
524 | name_end = get_symbol_end (); |
525 | symbol_name_length = strlen (symbol_name); | |
526 | symbol_name_copy = xmalloc (symbol_name_length + 1); | |
527 | strcpy (symbol_name_copy, symbol_name); | |
528 | #ifdef tc_canonicalize_symbol_name | |
529 | symbol_name_copy = tc_canonicalize_symbol_name (symbol_name_copy); | |
530 | #endif | |
531 | ||
a5324a3e | 532 | /* Initialize the new symbol. */ |
252b5132 | 533 | def_symbol_in_progress = symbol_make (symbol_name_copy); |
49309057 | 534 | symbol_set_frag (def_symbol_in_progress, &zero_address_frag); |
252b5132 RH |
535 | S_SET_VALUE (def_symbol_in_progress, 0); |
536 | ||
537 | if (S_IS_STRING (def_symbol_in_progress)) | |
538 | SF_SET_STRING (def_symbol_in_progress); | |
539 | ||
540 | *input_line_pointer = name_end; | |
541 | ||
542 | demand_empty_rest_of_line (); | |
543 | } | |
544 | ||
545 | unsigned int dim_index; | |
546 | ||
547 | static void | |
a5324a3e | 548 | obj_coff_endef (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 549 | { |
c9900432 | 550 | symbolS *symbolP = NULL; |
252b5132 | 551 | |
252b5132 RH |
552 | dim_index = 0; |
553 | if (def_symbol_in_progress == NULL) | |
554 | { | |
555 | as_warn (_(".endef pseudo-op used outside of .def/.endef: ignored.")); | |
556 | demand_empty_rest_of_line (); | |
557 | return; | |
a5324a3e | 558 | } |
252b5132 | 559 | |
dcd619be | 560 | /* Set the section number according to storage class. */ |
252b5132 RH |
561 | switch (S_GET_STORAGE_CLASS (def_symbol_in_progress)) |
562 | { | |
563 | case C_STRTAG: | |
564 | case C_ENTAG: | |
565 | case C_UNTAG: | |
566 | SF_SET_TAG (def_symbol_in_progress); | |
a5324a3e | 567 | /* Fall through. */ |
252b5132 RH |
568 | case C_FILE: |
569 | case C_TPDEF: | |
570 | SF_SET_DEBUG (def_symbol_in_progress); | |
571 | S_SET_SEGMENT (def_symbol_in_progress, fetch_coff_debug_section ()); | |
572 | break; | |
573 | ||
574 | case C_EFCN: | |
dcd619be | 575 | SF_SET_LOCAL (def_symbol_in_progress); /* Do not emit this symbol. */ |
a5324a3e | 576 | /* Fall through. */ |
252b5132 | 577 | case C_BLOCK: |
a5324a3e NC |
578 | SF_SET_PROCESS (def_symbol_in_progress); /* Will need processing before writing. */ |
579 | /* Fall through. */ | |
252b5132 RH |
580 | case C_FCN: |
581 | { | |
5a38dc70 | 582 | const char *name; |
a5324a3e | 583 | |
252b5132 RH |
584 | S_SET_SEGMENT (def_symbol_in_progress, text_section); |
585 | ||
49309057 | 586 | name = S_GET_NAME (def_symbol_in_progress); |
23dab925 | 587 | if (name[0] == '.' && name[2] == 'f' && name[3] == '\0') |
cc8a6dd0 | 588 | { |
23dab925 ILT |
589 | switch (name[1]) |
590 | { | |
dcd619be | 591 | case 'b': |
23dab925 ILT |
592 | /* .bf */ |
593 | if (! in_function ()) | |
594 | as_warn (_("`%s' symbol without preceding function"), name); | |
595 | /* Will need relocating. */ | |
596 | SF_SET_PROCESS (def_symbol_in_progress); | |
597 | clear_function (); | |
598 | break; | |
599 | #ifdef TE_PE | |
dcd619be | 600 | case 'e': |
23dab925 ILT |
601 | /* .ef */ |
602 | /* The MS compilers output the actual endline, not the | |
603 | function-relative one... we want to match without | |
604 | changing the assembler input. */ | |
dcd619be | 605 | SA_SET_SYM_LNNO (def_symbol_in_progress, |
23dab925 ILT |
606 | (SA_GET_SYM_LNNO (def_symbol_in_progress) |
607 | + coff_line_base)); | |
608 | break; | |
609 | #endif | |
610 | } | |
252b5132 RH |
611 | } |
612 | } | |
613 | break; | |
614 | ||
615 | #ifdef C_AUTOARG | |
616 | case C_AUTOARG: | |
617 | #endif /* C_AUTOARG */ | |
618 | case C_AUTO: | |
619 | case C_REG: | |
620 | case C_ARG: | |
621 | case C_REGPARM: | |
622 | case C_FIELD: | |
56385375 L |
623 | |
624 | /* According to the COFF documentation: | |
625 | ||
626 | http://osr5doc.sco.com:1996/topics/COFF_SectNumFld.html | |
627 | ||
628 | A special section number (-2) marks symbolic debugging symbols, | |
629 | including structure/union/enumeration tag names, typedefs, and | |
dcd619be | 630 | the name of the file. A section number of -1 indicates that the |
56385375 | 631 | symbol has a value but is not relocatable. Examples of |
dcd619be KH |
632 | absolute-valued symbols include automatic and register variables, |
633 | function arguments, and .eos symbols. | |
56385375 L |
634 | |
635 | But from Ian Lance Taylor: | |
636 | ||
637 | http://sources.redhat.com/ml/binutils/2000-08/msg00202.html | |
638 | ||
639 | the actual tools all marked them as section -1. So the GNU COFF | |
640 | assembler follows historical COFF assemblers. | |
641 | ||
642 | However, it causes problems for djgpp | |
643 | ||
644 | http://sources.redhat.com/ml/binutils/2000-08/msg00210.html | |
645 | ||
646 | By defining STRICTCOFF, a COFF port can make the assembler to | |
dcd619be | 647 | follow the documented behavior. */ |
56385375 | 648 | #ifdef STRICTCOFF |
252b5132 RH |
649 | case C_MOS: |
650 | case C_MOE: | |
651 | case C_MOU: | |
652 | case C_EOS: | |
56385375 | 653 | #endif |
d1d8ba22 | 654 | SF_SET_DEBUG (def_symbol_in_progress); |
252b5132 RH |
655 | S_SET_SEGMENT (def_symbol_in_progress, absolute_section); |
656 | break; | |
657 | ||
56385375 L |
658 | #ifndef STRICTCOFF |
659 | case C_MOS: | |
660 | case C_MOE: | |
661 | case C_MOU: | |
662 | case C_EOS: | |
663 | S_SET_SEGMENT (def_symbol_in_progress, absolute_section); | |
664 | break; | |
665 | #endif | |
666 | ||
252b5132 RH |
667 | case C_EXT: |
668 | case C_WEAKEXT: | |
669 | #ifdef TE_PE | |
670 | case C_NT_WEAK: | |
671 | #endif | |
672 | case C_STAT: | |
673 | case C_LABEL: | |
a5324a3e | 674 | /* Valid but set somewhere else (s_comm, s_lcomm, colon). */ |
252b5132 RH |
675 | break; |
676 | ||
677 | default: | |
678 | case C_USTATIC: | |
679 | case C_EXTDEF: | |
680 | case C_ULABEL: | |
681 | as_warn (_("unexpected storage class %d"), | |
682 | S_GET_STORAGE_CLASS (def_symbol_in_progress)); | |
683 | break; | |
a5324a3e | 684 | } |
252b5132 RH |
685 | |
686 | /* Now that we have built a debug symbol, try to find if we should | |
687 | merge with an existing symbol or not. If a symbol is C_EFCN or | |
9690c54d ILT |
688 | absolute_section or untagged SEG_DEBUG it never merges. We also |
689 | don't merge labels, which are in a different namespace, nor | |
690 | symbols which have not yet been defined since they are typically | |
691 | unique, nor do we merge tags with non-tags. */ | |
252b5132 RH |
692 | |
693 | /* Two cases for functions. Either debug followed by definition or | |
694 | definition followed by debug. For definition first, we will | |
695 | merge the debug symbol into the definition. For debug first, the | |
696 | lineno entry MUST point to the definition function or else it | |
697 | will point off into space when obj_crawl_symbol_chain() merges | |
698 | the debug symbol into the real symbol. Therefor, let's presume | |
dcd619be | 699 | the debug symbol is a real function reference. */ |
252b5132 RH |
700 | |
701 | /* FIXME-SOON If for some reason the definition label/symbol is | |
702 | never seen, this will probably leave an undefined symbol at link | |
dcd619be | 703 | time. */ |
252b5132 RH |
704 | |
705 | if (S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_EFCN | |
9690c54d | 706 | || S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_LABEL |
a5324a3e NC |
707 | || (streq (bfd_get_section_name (stdoutput, |
708 | S_GET_SEGMENT (def_symbol_in_progress)), | |
709 | "*DEBUG*") | |
252b5132 RH |
710 | && !SF_GET_TAG (def_symbol_in_progress)) |
711 | || S_GET_SEGMENT (def_symbol_in_progress) == absolute_section | |
9690c54d | 712 | || ! symbol_constant_p (def_symbol_in_progress) |
91c4c449 | 713 | || (symbolP = symbol_find (S_GET_NAME (def_symbol_in_progress))) == NULL |
9690c54d | 714 | || SF_GET_TAG (def_symbol_in_progress) != SF_GET_TAG (symbolP)) |
252b5132 | 715 | { |
9690c54d | 716 | /* If it already is at the end of the symbol list, do nothing */ |
252b5132 | 717 | if (def_symbol_in_progress != symbol_lastP) |
cc8a6dd0 | 718 | { |
9690c54d ILT |
719 | symbol_remove (def_symbol_in_progress, &symbol_rootP, &symbol_lastP); |
720 | symbol_append (def_symbol_in_progress, symbol_lastP, &symbol_rootP, | |
721 | &symbol_lastP); | |
cc8a6dd0 | 722 | } |
252b5132 RH |
723 | } |
724 | else | |
725 | { | |
726 | /* This symbol already exists, merge the newly created symbol | |
727 | into the old one. This is not mandatory. The linker can | |
728 | handle duplicate symbols correctly. But I guess that it save | |
729 | a *lot* of space if the assembly file defines a lot of | |
a5324a3e | 730 | symbols. [loic] */ |
252b5132 RH |
731 | |
732 | /* The debug entry (def_symbol_in_progress) is merged into the | |
dcd619be | 733 | previous definition. */ |
252b5132 RH |
734 | |
735 | c_symbol_merge (def_symbol_in_progress, symbolP); | |
736 | symbol_remove (def_symbol_in_progress, &symbol_rootP, &symbol_lastP); | |
737 | ||
738 | def_symbol_in_progress = symbolP; | |
739 | ||
740 | if (SF_GET_FUNCTION (def_symbol_in_progress) | |
741 | || SF_GET_TAG (def_symbol_in_progress) | |
742 | || S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_STAT) | |
743 | { | |
744 | /* For functions, and tags, and static symbols, the symbol | |
745 | *must* be where the debug symbol appears. Move the | |
dcd619be | 746 | existing symbol to the current place. */ |
a5324a3e | 747 | /* If it already is at the end of the symbol list, do nothing. */ |
252b5132 RH |
748 | if (def_symbol_in_progress != symbol_lastP) |
749 | { | |
750 | symbol_remove (def_symbol_in_progress, &symbol_rootP, &symbol_lastP); | |
751 | symbol_append (def_symbol_in_progress, symbol_lastP, &symbol_rootP, &symbol_lastP); | |
752 | } | |
753 | } | |
754 | } | |
755 | ||
756 | if (SF_GET_TAG (def_symbol_in_progress)) | |
757 | { | |
758 | symbolS *oldtag; | |
759 | ||
91c4c449 | 760 | oldtag = symbol_find (S_GET_NAME (def_symbol_in_progress)); |
252b5132 RH |
761 | if (oldtag == NULL || ! SF_GET_TAG (oldtag)) |
762 | tag_insert (S_GET_NAME (def_symbol_in_progress), | |
763 | def_symbol_in_progress); | |
764 | } | |
765 | ||
766 | if (SF_GET_FUNCTION (def_symbol_in_progress)) | |
767 | { | |
768 | know (sizeof (def_symbol_in_progress) <= sizeof (long)); | |
769 | set_function (def_symbol_in_progress); | |
770 | SF_SET_PROCESS (def_symbol_in_progress); | |
771 | ||
772 | if (symbolP == NULL) | |
a5324a3e NC |
773 | /* That is, if this is the first time we've seen the |
774 | function. */ | |
775 | symbol_table_insert (def_symbol_in_progress); | |
776 | ||
777 | } | |
252b5132 RH |
778 | |
779 | def_symbol_in_progress = NULL; | |
780 | demand_empty_rest_of_line (); | |
781 | } | |
782 | ||
783 | static void | |
a5324a3e | 784 | obj_coff_dim (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
785 | { |
786 | int dim_index; | |
787 | ||
788 | if (def_symbol_in_progress == NULL) | |
789 | { | |
790 | as_warn (_(".dim pseudo-op used outside of .def/.endef: ignored.")); | |
791 | demand_empty_rest_of_line (); | |
792 | return; | |
a5324a3e | 793 | } |
252b5132 RH |
794 | |
795 | S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); | |
796 | ||
797 | for (dim_index = 0; dim_index < DIMNUM; dim_index++) | |
798 | { | |
799 | SKIP_WHITESPACES (); | |
800 | SA_SET_SYM_DIMEN (def_symbol_in_progress, dim_index, | |
801 | get_absolute_expression ()); | |
802 | ||
803 | switch (*input_line_pointer) | |
804 | { | |
805 | case ',': | |
806 | input_line_pointer++; | |
807 | break; | |
808 | ||
809 | default: | |
810 | as_warn (_("badly formed .dim directive ignored")); | |
a5324a3e | 811 | /* Fall through. */ |
252b5132 RH |
812 | case '\n': |
813 | case ';': | |
814 | dim_index = DIMNUM; | |
815 | break; | |
816 | } | |
817 | } | |
818 | ||
819 | demand_empty_rest_of_line (); | |
820 | } | |
821 | ||
822 | static void | |
a5324a3e | 823 | obj_coff_line (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
824 | { |
825 | int this_base; | |
826 | ||
827 | if (def_symbol_in_progress == NULL) | |
828 | { | |
829 | /* Probably stabs-style line? */ | |
830 | obj_coff_ln (0); | |
831 | return; | |
832 | } | |
833 | ||
834 | this_base = get_absolute_expression (); | |
a5324a3e | 835 | if (streq (".bf", S_GET_NAME (def_symbol_in_progress))) |
252b5132 RH |
836 | coff_line_base = this_base; |
837 | ||
838 | S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); | |
23dab925 | 839 | SA_SET_SYM_LNNO (def_symbol_in_progress, this_base); |
252b5132 RH |
840 | |
841 | demand_empty_rest_of_line (); | |
842 | ||
843 | #ifndef NO_LISTING | |
a5324a3e | 844 | if (streq (".bf", S_GET_NAME (def_symbol_in_progress))) |
252b5132 RH |
845 | { |
846 | extern int listing; | |
847 | ||
848 | if (listing) | |
23dab925 | 849 | listing_source_line ((unsigned int) this_base); |
252b5132 RH |
850 | } |
851 | #endif | |
852 | } | |
853 | ||
854 | static void | |
a5324a3e | 855 | obj_coff_size (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
856 | { |
857 | if (def_symbol_in_progress == NULL) | |
858 | { | |
859 | as_warn (_(".size pseudo-op used outside of .def/.endef ignored.")); | |
860 | demand_empty_rest_of_line (); | |
861 | return; | |
a5324a3e | 862 | } |
252b5132 RH |
863 | |
864 | S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); | |
865 | SA_SET_SYM_SIZE (def_symbol_in_progress, get_absolute_expression ()); | |
866 | demand_empty_rest_of_line (); | |
867 | } | |
868 | ||
869 | static void | |
a5324a3e | 870 | obj_coff_scl (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
871 | { |
872 | if (def_symbol_in_progress == NULL) | |
873 | { | |
874 | as_warn (_(".scl pseudo-op used outside of .def/.endef ignored.")); | |
875 | demand_empty_rest_of_line (); | |
876 | return; | |
a5324a3e | 877 | } |
252b5132 RH |
878 | |
879 | S_SET_STORAGE_CLASS (def_symbol_in_progress, get_absolute_expression ()); | |
880 | demand_empty_rest_of_line (); | |
881 | } | |
882 | ||
883 | static void | |
a5324a3e | 884 | obj_coff_tag (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
885 | { |
886 | char *symbol_name; | |
887 | char name_end; | |
888 | ||
889 | if (def_symbol_in_progress == NULL) | |
890 | { | |
891 | as_warn (_(".tag pseudo-op used outside of .def/.endef ignored.")); | |
892 | demand_empty_rest_of_line (); | |
893 | return; | |
894 | } | |
895 | ||
896 | S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); | |
897 | symbol_name = input_line_pointer; | |
898 | name_end = get_symbol_end (); | |
899 | ||
900 | #ifdef tc_canonicalize_symbol_name | |
901 | symbol_name = tc_canonicalize_symbol_name (symbol_name); | |
902 | #endif | |
903 | ||
904 | /* Assume that the symbol referred to by .tag is always defined. | |
dcd619be | 905 | This was a bad assumption. I've added find_or_make. xoxorich. */ |
252b5132 RH |
906 | SA_SET_SYM_TAGNDX (def_symbol_in_progress, |
907 | tag_find_or_make (symbol_name)); | |
908 | if (SA_GET_SYM_TAGNDX (def_symbol_in_progress) == 0L) | |
a5324a3e | 909 | as_warn (_("tag not found for .tag %s"), symbol_name); |
252b5132 RH |
910 | |
911 | SF_SET_TAGGED (def_symbol_in_progress); | |
912 | *input_line_pointer = name_end; | |
913 | ||
914 | demand_empty_rest_of_line (); | |
915 | } | |
916 | ||
917 | static void | |
a5324a3e | 918 | obj_coff_type (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
919 | { |
920 | if (def_symbol_in_progress == NULL) | |
921 | { | |
922 | as_warn (_(".type pseudo-op used outside of .def/.endef ignored.")); | |
923 | demand_empty_rest_of_line (); | |
924 | return; | |
a5324a3e | 925 | } |
252b5132 RH |
926 | |
927 | S_SET_DATA_TYPE (def_symbol_in_progress, get_absolute_expression ()); | |
928 | ||
929 | if (ISFCN (S_GET_DATA_TYPE (def_symbol_in_progress)) && | |
930 | S_GET_STORAGE_CLASS (def_symbol_in_progress) != C_TPDEF) | |
a5324a3e | 931 | SF_SET_FUNCTION (def_symbol_in_progress); |
252b5132 RH |
932 | |
933 | demand_empty_rest_of_line (); | |
934 | } | |
935 | ||
936 | static void | |
a5324a3e | 937 | obj_coff_val (int ignore ATTRIBUTE_UNUSED) |
252b5132 RH |
938 | { |
939 | if (def_symbol_in_progress == NULL) | |
940 | { | |
941 | as_warn (_(".val pseudo-op used outside of .def/.endef ignored.")); | |
942 | demand_empty_rest_of_line (); | |
943 | return; | |
a5324a3e | 944 | } |
252b5132 RH |
945 | |
946 | if (is_name_beginner (*input_line_pointer)) | |
947 | { | |
948 | char *symbol_name = input_line_pointer; | |
949 | char name_end = get_symbol_end (); | |
950 | ||
951 | #ifdef tc_canonicalize_symbol_name | |
952 | symbol_name = tc_canonicalize_symbol_name (symbol_name); | |
953 | #endif | |
a5324a3e | 954 | if (streq (symbol_name, ".")) |
252b5132 | 955 | { |
a5324a3e | 956 | /* If the .val is != from the .def (e.g. statics). */ |
49309057 | 957 | symbol_set_frag (def_symbol_in_progress, frag_now); |
252b5132 | 958 | S_SET_VALUE (def_symbol_in_progress, (valueT) frag_now_fix ()); |
252b5132 | 959 | } |
a5324a3e | 960 | else if (! streq (S_GET_NAME (def_symbol_in_progress), symbol_name)) |
252b5132 | 961 | { |
49309057 ILT |
962 | expressionS exp; |
963 | ||
964 | exp.X_op = O_symbol; | |
965 | exp.X_add_symbol = symbol_find_or_make (symbol_name); | |
966 | exp.X_op_symbol = NULL; | |
967 | exp.X_add_number = 0; | |
968 | symbol_set_value_expression (def_symbol_in_progress, &exp); | |
252b5132 RH |
969 | |
970 | /* If the segment is undefined when the forward reference is | |
971 | resolved, then copy the segment id from the forward | |
972 | symbol. */ | |
973 | SF_SET_GET_SEGMENT (def_symbol_in_progress); | |
0561a208 ILT |
974 | |
975 | /* FIXME: gcc can generate address expressions here in | |
976 | unusual cases (search for "obscure" in sdbout.c). We | |
977 | just ignore the offset here, thus generating incorrect | |
978 | debugging information. We ignore the rest of the line | |
979 | just below. */ | |
252b5132 | 980 | } |
0561a208 | 981 | /* Otherwise, it is the name of a non debug symbol and its value |
dcd619be | 982 | will be calculated later. */ |
252b5132 RH |
983 | *input_line_pointer = name_end; |
984 | } | |
985 | else | |
986 | { | |
987 | S_SET_VALUE (def_symbol_in_progress, get_absolute_expression ()); | |
a5324a3e | 988 | } |
252b5132 RH |
989 | |
990 | demand_empty_rest_of_line (); | |
991 | } | |
992 | ||
977cdf5a NC |
993 | #ifdef TE_PE |
994 | ||
995 | /* Return nonzero if name begins with weak alternate symbol prefix. */ | |
996 | ||
997 | static int | |
998 | weak_is_altname (const char * name) | |
999 | { | |
a5324a3e | 1000 | return strneq (name, weak_altprefix, sizeof (weak_altprefix) - 1); |
977cdf5a NC |
1001 | } |
1002 | ||
1003 | /* Return the name of the alternate symbol | |
1004 | name corresponding to a weak symbol's name. */ | |
1005 | ||
1006 | static const char * | |
1007 | weak_name2altname (const char * name) | |
1008 | { | |
1009 | char *alt_name; | |
1010 | ||
1011 | alt_name = xmalloc (sizeof (weak_altprefix) + strlen (name)); | |
1012 | strcpy (alt_name, weak_altprefix); | |
1013 | return strcat (alt_name, name); | |
1014 | } | |
1015 | ||
a5324a3e | 1016 | /* Return the name of the weak symbol corresponding to an |
977cdf5a NC |
1017 | alterate symbol. */ |
1018 | ||
1019 | static const char * | |
1020 | weak_altname2name (const char * name) | |
1021 | { | |
1022 | char * weak_name; | |
1023 | char * dot; | |
1024 | ||
1025 | assert (weak_is_altname (name)); | |
1026 | ||
1027 | weak_name = xstrdup (name + 6); | |
1028 | if ((dot = strchr (weak_name, '.'))) | |
1029 | *dot = 0; | |
1030 | return weak_name; | |
1031 | } | |
1032 | ||
1033 | /* Make a weak symbol name unique by | |
1034 | appending the name of an external symbol. */ | |
1035 | ||
1036 | static const char * | |
1037 | weak_uniquify (const char * name) | |
1038 | { | |
1039 | char *ret; | |
1040 | const char * unique = ""; | |
1041 | ||
1042 | #ifdef USE_UNIQUE | |
1043 | if (an_external_name != NULL) | |
1044 | unique = an_external_name; | |
1045 | #endif | |
1046 | assert (weak_is_altname (name)); | |
1047 | ||
1048 | if (strchr (name + sizeof (weak_altprefix), '.')) | |
1049 | return name; | |
1050 | ||
1051 | ret = xmalloc (strlen (name) + strlen (unique) + 2); | |
1052 | strcpy (ret, name); | |
1053 | strcat (ret, "."); | |
1054 | strcat (ret, unique); | |
1055 | return ret; | |
1056 | } | |
1057 | ||
1058 | #endif /* TE_PE */ | |
1059 | ||
c87db184 | 1060 | /* Handle .weak. This is a GNU extension in formats other than PE. */ |
977cdf5a | 1061 | |
c87db184 | 1062 | static void |
977cdf5a | 1063 | obj_coff_weak (int ignore ATTRIBUTE_UNUSED) |
c87db184 CF |
1064 | { |
1065 | char *name; | |
1066 | int c; | |
1067 | symbolS *symbolP; | |
977cdf5a NC |
1068 | #ifdef TE_PE |
1069 | symbolS *alternateP; | |
1070 | #endif | |
c87db184 CF |
1071 | |
1072 | do | |
1073 | { | |
1074 | name = input_line_pointer; | |
1075 | c = get_symbol_end (); | |
1076 | if (*name == 0) | |
1077 | { | |
1078 | as_warn (_("badly formed .weak directive ignored")); | |
1079 | ignore_rest_of_line (); | |
1080 | return; | |
1081 | } | |
977cdf5a | 1082 | c = 0; |
c87db184 CF |
1083 | symbolP = symbol_find_or_make (name); |
1084 | *input_line_pointer = c; | |
1085 | SKIP_WHITESPACE (); | |
c87db184 | 1086 | S_SET_WEAK (symbolP); |
c87db184 CF |
1087 | |
1088 | #ifdef TE_PE | |
1089 | /* See _Microsoft Portable Executable and Common Object | |
977cdf5a NC |
1090 | File Format Specification_, section 5.5.3. |
1091 | Create a symbol representing the alternate value. | |
1092 | coff_frob_symbol will set the value of this symbol from | |
1093 | the value of the weak symbol itself. */ | |
c87db184 | 1094 | S_SET_STORAGE_CLASS (symbolP, C_NT_WEAK); |
977cdf5a | 1095 | S_SET_NUMBER_AUXILIARY (symbolP, 1); |
27198fa9 | 1096 | SA_SET_SYM_FSIZE (symbolP, IMAGE_WEAK_EXTERN_SEARCH_NOLIBRARY); |
c87db184 | 1097 | |
977cdf5a NC |
1098 | alternateP = symbol_find_or_make (weak_name2altname (name)); |
1099 | S_SET_EXTERNAL (alternateP); | |
1100 | S_SET_STORAGE_CLASS (alternateP, C_NT_WEAK); | |
c87db184 | 1101 | |
977cdf5a NC |
1102 | SA_SET_SYM_TAGNDX (symbolP, alternateP); |
1103 | #endif | |
c87db184 CF |
1104 | |
1105 | if (c == ',') | |
1106 | { | |
1107 | input_line_pointer++; | |
1108 | SKIP_WHITESPACE (); | |
1109 | if (*input_line_pointer == '\n') | |
1110 | c = '\n'; | |
1111 | } | |
1112 | ||
1113 | } | |
1114 | while (c == ','); | |
1115 | ||
1116 | demand_empty_rest_of_line (); | |
1117 | } | |
1118 | ||
252b5132 | 1119 | void |
a5324a3e | 1120 | coff_obj_read_begin_hook (void) |
252b5132 | 1121 | { |
dcd619be | 1122 | /* These had better be the same. Usually 18 bytes. */ |
252b5132 RH |
1123 | know (sizeof (SYMENT) == sizeof (AUXENT)); |
1124 | know (SYMESZ == AUXESZ); | |
252b5132 RH |
1125 | tag_init (); |
1126 | } | |
1127 | ||
252b5132 | 1128 | symbolS *coff_last_function; |
17fc154e | 1129 | #ifndef OBJ_XCOFF |
252b5132 | 1130 | static symbolS *coff_last_bf; |
17fc154e | 1131 | #endif |
252b5132 RH |
1132 | |
1133 | void | |
a5324a3e | 1134 | coff_frob_symbol (symbolS *symp, int *punt) |
252b5132 RH |
1135 | { |
1136 | static symbolS *last_tagP; | |
1137 | static stack *block_stack; | |
1138 | static symbolS *set_end; | |
1139 | symbolS *next_set_end = NULL; | |
1140 | ||
1141 | if (symp == &abs_symbol) | |
1142 | { | |
1143 | *punt = 1; | |
1144 | return; | |
1145 | } | |
1146 | ||
1147 | if (current_lineno_sym) | |
a5324a3e | 1148 | coff_add_linesym (NULL); |
252b5132 RH |
1149 | |
1150 | if (!block_stack) | |
1151 | block_stack = stack_init (512, sizeof (symbolS*)); | |
1152 | ||
252b5132 | 1153 | #ifdef TE_PE |
977cdf5a NC |
1154 | if (S_GET_STORAGE_CLASS (symp) == C_NT_WEAK |
1155 | && ! S_IS_WEAK (symp) | |
1156 | && weak_is_altname (S_GET_NAME (symp))) | |
1157 | { | |
1158 | /* This is a weak alternate symbol. All processing of | |
1159 | PECOFFweak symbols is done here, through the alternate. */ | |
1160 | symbolS *weakp = symbol_find (weak_altname2name (S_GET_NAME (symp))); | |
1161 | ||
1162 | assert (weakp); | |
1163 | assert (S_GET_NUMBER_AUXILIARY (weakp) == 1); | |
1164 | ||
1165 | if (symbol_equated_p (weakp)) | |
1166 | { | |
1167 | /* The weak symbol has an alternate specified; symp is unneeded. */ | |
1168 | S_SET_STORAGE_CLASS (weakp, C_NT_WEAK); | |
1169 | SA_SET_SYM_TAGNDX (weakp, | |
1170 | symbol_get_value_expression (weakp)->X_add_symbol); | |
1171 | ||
1172 | S_CLEAR_EXTERNAL (symp); | |
1173 | *punt = 1; | |
1174 | return; | |
1175 | } | |
1176 | else | |
1177 | { | |
1178 | /* The weak symbol has been assigned an alternate value. | |
1179 | Copy this value to symp, and set symp as weakp's alternate. */ | |
1180 | if (S_GET_STORAGE_CLASS (weakp) != C_NT_WEAK) | |
1181 | { | |
1182 | S_SET_STORAGE_CLASS (symp, S_GET_STORAGE_CLASS (weakp)); | |
1183 | S_SET_STORAGE_CLASS (weakp, C_NT_WEAK); | |
1184 | } | |
1185 | ||
1186 | if (S_IS_DEFINED (weakp)) | |
1187 | { | |
1188 | /* This is a defined weak symbol. Copy value information | |
1189 | from the weak symbol itself to the alternate symbol. */ | |
1190 | symbol_set_value_expression (symp, | |
1191 | symbol_get_value_expression (weakp)); | |
1192 | symbol_set_frag (symp, symbol_get_frag (weakp)); | |
1193 | S_SET_SEGMENT (symp, S_GET_SEGMENT (weakp)); | |
1194 | } | |
1195 | else | |
1196 | { | |
1197 | /* This is an undefined weak symbol. | |
1198 | Define the alternate symbol to zero. */ | |
1199 | S_SET_VALUE (symp, 0); | |
1200 | S_SET_SEGMENT (symp, absolute_section); | |
1201 | } | |
1202 | ||
1203 | S_SET_NAME (symp, weak_uniquify (S_GET_NAME (symp))); | |
1204 | S_SET_STORAGE_CLASS (symp, C_EXT); | |
1205 | ||
1206 | S_SET_VALUE (weakp, 0); | |
1207 | S_SET_SEGMENT (weakp, undefined_section); | |
1208 | } | |
252b5132 | 1209 | } |
977cdf5a NC |
1210 | #else /* TE_PE */ |
1211 | if (S_IS_WEAK (symp)) | |
1212 | S_SET_STORAGE_CLASS (symp, C_WEAKEXT); | |
1213 | #endif /* TE_PE */ | |
252b5132 RH |
1214 | |
1215 | if (!S_IS_DEFINED (symp) | |
1216 | && !S_IS_WEAK (symp) | |
1217 | && S_GET_STORAGE_CLASS (symp) != C_STAT) | |
1218 | S_SET_STORAGE_CLASS (symp, C_EXT); | |
1219 | ||
1220 | if (!SF_GET_DEBUG (symp)) | |
1221 | { | |
bdbe95c8 NC |
1222 | symbolS * real; |
1223 | ||
252b5132 RH |
1224 | if (!SF_GET_LOCAL (symp) |
1225 | && !SF_GET_STATICS (symp) | |
39da8128 | 1226 | && S_GET_STORAGE_CLASS (symp) != C_LABEL |
a5324a3e | 1227 | && symbol_constant_p (symp) |
91c4c449 | 1228 | && (real = symbol_find (S_GET_NAME (symp))) |
bdbe95c8 | 1229 | && S_GET_STORAGE_CLASS (real) == C_NULL |
252b5132 RH |
1230 | && real != symp) |
1231 | { | |
1232 | c_symbol_merge (symp, real); | |
1233 | *punt = 1; | |
39da8128 | 1234 | return; |
252b5132 | 1235 | } |
bdbe95c8 | 1236 | |
5e0d736c | 1237 | if (!S_IS_DEFINED (symp) && !SF_GET_LOCAL (symp)) |
252b5132 | 1238 | { |
5e0d736c DD |
1239 | assert (S_GET_VALUE (symp) == 0); |
1240 | S_SET_EXTERNAL (symp); | |
1241 | } | |
1242 | else if (S_GET_STORAGE_CLASS (symp) == C_NULL) | |
1243 | { | |
1244 | if (S_GET_SEGMENT (symp) == text_section | |
1245 | && symp != seg_info (text_section)->sym) | |
1246 | S_SET_STORAGE_CLASS (symp, C_LABEL); | |
252b5132 | 1247 | else |
5e0d736c | 1248 | S_SET_STORAGE_CLASS (symp, C_STAT); |
252b5132 | 1249 | } |
bdbe95c8 | 1250 | |
252b5132 RH |
1251 | if (SF_GET_PROCESS (symp)) |
1252 | { | |
1253 | if (S_GET_STORAGE_CLASS (symp) == C_BLOCK) | |
1254 | { | |
a5324a3e | 1255 | if (streq (S_GET_NAME (symp), ".bb")) |
252b5132 RH |
1256 | stack_push (block_stack, (char *) &symp); |
1257 | else | |
1258 | { | |
1259 | symbolS *begin; | |
bdbe95c8 | 1260 | |
252b5132 RH |
1261 | begin = *(symbolS **) stack_pop (block_stack); |
1262 | if (begin == 0) | |
1263 | as_warn (_("mismatched .eb")); | |
1264 | else | |
1265 | next_set_end = begin; | |
1266 | } | |
1267 | } | |
bdbe95c8 | 1268 | |
252b5132 RH |
1269 | if (coff_last_function == 0 && SF_GET_FUNCTION (symp)) |
1270 | { | |
1271 | union internal_auxent *auxp; | |
bdbe95c8 | 1272 | |
252b5132 RH |
1273 | coff_last_function = symp; |
1274 | if (S_GET_NUMBER_AUXILIARY (symp) < 1) | |
1275 | S_SET_NUMBER_AUXILIARY (symp, 1); | |
0561a208 | 1276 | auxp = SYM_AUXENT (symp); |
252b5132 RH |
1277 | memset (auxp->x_sym.x_fcnary.x_ary.x_dimen, 0, |
1278 | sizeof (auxp->x_sym.x_fcnary.x_ary.x_dimen)); | |
1279 | } | |
bdbe95c8 | 1280 | |
252b5132 RH |
1281 | if (S_GET_STORAGE_CLASS (symp) == C_EFCN) |
1282 | { | |
1283 | if (coff_last_function == 0) | |
161840f9 ILT |
1284 | as_fatal (_("C_EFCN symbol for %s out of scope"), |
1285 | S_GET_NAME (symp)); | |
252b5132 RH |
1286 | SA_SET_SYM_FSIZE (coff_last_function, |
1287 | (long) (S_GET_VALUE (symp) | |
1288 | - S_GET_VALUE (coff_last_function))); | |
1289 | next_set_end = coff_last_function; | |
1290 | coff_last_function = 0; | |
1291 | } | |
1292 | } | |
bdbe95c8 | 1293 | |
252b5132 RH |
1294 | if (S_IS_EXTERNAL (symp)) |
1295 | S_SET_STORAGE_CLASS (symp, C_EXT); | |
1296 | else if (SF_GET_LOCAL (symp)) | |
1297 | *punt = 1; | |
1298 | ||
1299 | if (SF_GET_FUNCTION (symp)) | |
49309057 | 1300 | symbol_get_bfdsym (symp)->flags |= BSF_FUNCTION; |
252b5132 RH |
1301 | } |
1302 | ||
8828d862 ILT |
1303 | /* Double check weak symbols. */ |
1304 | if (S_IS_WEAK (symp) && S_IS_COMMON (symp)) | |
1305 | as_bad (_("Symbol `%s' can not be both weak and common"), | |
1306 | S_GET_NAME (symp)); | |
1307 | ||
252b5132 RH |
1308 | if (SF_GET_TAG (symp)) |
1309 | last_tagP = symp; | |
1310 | else if (S_GET_STORAGE_CLASS (symp) == C_EOS) | |
1311 | next_set_end = last_tagP; | |
1312 | ||
1313 | #ifdef OBJ_XCOFF | |
1314 | /* This is pretty horrible, but we have to set *punt correctly in | |
1315 | order to call SA_SET_SYM_ENDNDX correctly. */ | |
809ffe0d | 1316 | if (! symbol_used_in_reloc_p (symp) |
49309057 | 1317 | && ((symbol_get_bfdsym (symp)->flags & BSF_SECTION_SYM) != 0 |
670ec21d | 1318 | || (! (S_IS_EXTERNAL (symp) || S_IS_WEAK (symp)) |
809ffe0d | 1319 | && ! symbol_get_tc (symp)->output |
252b5132 RH |
1320 | && S_GET_STORAGE_CLASS (symp) != C_FILE))) |
1321 | *punt = 1; | |
1322 | #endif | |
1323 | ||
1324 | if (set_end != (symbolS *) NULL | |
1325 | && ! *punt | |
49309057 | 1326 | && ((symbol_get_bfdsym (symp)->flags & BSF_NOT_AT_END) != 0 |
252b5132 RH |
1327 | || (S_IS_DEFINED (symp) |
1328 | && ! S_IS_COMMON (symp) | |
1329 | && (! S_IS_EXTERNAL (symp) || SF_GET_FUNCTION (symp))))) | |
1330 | { | |
1331 | SA_SET_SYM_ENDNDX (set_end, symp); | |
1332 | set_end = NULL; | |
1333 | } | |
1334 | ||
a04b544b ILT |
1335 | if (next_set_end != NULL) |
1336 | { | |
1337 | if (set_end != NULL) | |
1338 | as_warn ("Warning: internal error: forgetting to set endndx of %s", | |
1339 | S_GET_NAME (set_end)); | |
1340 | set_end = next_set_end; | |
1341 | } | |
252b5132 | 1342 | |
8642cce8 | 1343 | #ifndef OBJ_XCOFF |
252b5132 RH |
1344 | if (! *punt |
1345 | && S_GET_STORAGE_CLASS (symp) == C_FCN | |
a5324a3e | 1346 | && streq (S_GET_NAME (symp), ".bf")) |
252b5132 RH |
1347 | { |
1348 | if (coff_last_bf != NULL) | |
1349 | SA_SET_SYM_ENDNDX (coff_last_bf, symp); | |
1350 | coff_last_bf = symp; | |
1351 | } | |
8642cce8 | 1352 | #endif |
49309057 | 1353 | if (coffsymbol (symbol_get_bfdsym (symp))->lineno) |
252b5132 RH |
1354 | { |
1355 | int i; | |
1356 | struct line_no *lptr; | |
1357 | alent *l; | |
1358 | ||
49309057 | 1359 | lptr = (struct line_no *) coffsymbol (symbol_get_bfdsym (symp))->lineno; |
252b5132 RH |
1360 | for (i = 0; lptr; lptr = lptr->next) |
1361 | i++; | |
49309057 | 1362 | lptr = (struct line_no *) coffsymbol (symbol_get_bfdsym (symp))->lineno; |
252b5132 RH |
1363 | |
1364 | /* We need i entries for line numbers, plus 1 for the first | |
1365 | entry which BFD will override, plus 1 for the last zero | |
1366 | entry (a marker for BFD). */ | |
a5324a3e | 1367 | l = xmalloc ((i + 2) * sizeof (* l)); |
49309057 | 1368 | coffsymbol (symbol_get_bfdsym (symp))->lineno = l; |
252b5132 RH |
1369 | l[i + 1].line_number = 0; |
1370 | l[i + 1].u.sym = NULL; | |
1371 | for (; i > 0; i--) | |
1372 | { | |
1373 | if (lptr->frag) | |
bea9907b | 1374 | lptr->l.u.offset += lptr->frag->fr_address / OCTETS_PER_BYTE; |
252b5132 RH |
1375 | l[i] = lptr->l; |
1376 | lptr = lptr->next; | |
1377 | } | |
1378 | } | |
1379 | } | |
1380 | ||
1381 | void | |
a5324a3e NC |
1382 | coff_adjust_section_syms (bfd *abfd ATTRIBUTE_UNUSED, |
1383 | asection *sec, | |
1384 | void * x ATTRIBUTE_UNUSED) | |
252b5132 RH |
1385 | { |
1386 | symbolS *secsym; | |
1387 | segment_info_type *seginfo = seg_info (sec); | |
1388 | int nlnno, nrelocs = 0; | |
1389 | ||
1390 | /* RS/6000 gas creates a .debug section manually in ppc_frob_file in | |
1391 | tc-ppc.c. Do not get confused by it. */ | |
1392 | if (seginfo == NULL) | |
1393 | return; | |
1394 | ||
a5324a3e | 1395 | if (streq (sec->name, ".text")) |
252b5132 RH |
1396 | nlnno = coff_n_line_nos; |
1397 | else | |
1398 | nlnno = 0; | |
1399 | { | |
1400 | /* @@ Hope that none of the fixups expand to more than one reloc | |
1401 | entry... */ | |
1402 | fixS *fixp = seginfo->fix_root; | |
1403 | while (fixp) | |
1404 | { | |
1405 | if (! fixp->fx_done) | |
1406 | nrelocs++; | |
1407 | fixp = fixp->fx_next; | |
1408 | } | |
1409 | } | |
587aac4e | 1410 | if (bfd_get_section_size (sec) == 0 |
252b5132 RH |
1411 | && nrelocs == 0 |
1412 | && nlnno == 0 | |
1413 | && sec != text_section | |
1414 | && sec != data_section | |
1415 | && sec != bss_section) | |
1416 | return; | |
a5324a3e | 1417 | |
252b5132 | 1418 | secsym = section_symbol (sec); |
945a1a6b ILT |
1419 | /* This is an estimate; we'll plug in the real value using |
1420 | SET_SECTION_RELOCS later */ | |
252b5132 RH |
1421 | SA_SET_SCN_NRELOC (secsym, nrelocs); |
1422 | SA_SET_SCN_NLINNO (secsym, nlnno); | |
1423 | } | |
1424 | ||
1425 | void | |
a5324a3e | 1426 | coff_frob_file_after_relocs (void) |
252b5132 | 1427 | { |
a5324a3e | 1428 | bfd_map_over_sections (stdoutput, coff_adjust_section_syms, NULL); |
252b5132 RH |
1429 | } |
1430 | ||
6ff96af6 NC |
1431 | /* Implement the .section pseudo op: |
1432 | .section name {, "flags"} | |
1433 | ^ ^ | |
1434 | | +--- optional flags: 'b' for bss | |
1435 | | 'i' for info | |
1436 | +-- section name 'l' for lib | |
1437 | 'n' for noload | |
1438 | 'o' for over | |
1439 | 'w' for data | |
1440 | 'd' (apparently m88k for data) | |
1441 | 'x' for text | |
1442 | 'r' for read-only data | |
1443 | 's' for shared data (PE) | |
1444 | But if the argument is not a quoted string, treat it as a | |
1445 | subsegment number. | |
1446 | ||
1447 | Note the 'a' flag is silently ignored. This allows the same | |
1448 | .section directive to be parsed in both ELF and COFF formats. */ | |
252b5132 RH |
1449 | |
1450 | void | |
a5324a3e | 1451 | obj_coff_section (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 1452 | { |
a5324a3e | 1453 | /* Strip out the section name. */ |
252b5132 RH |
1454 | char *section_name; |
1455 | char c; | |
1456 | char *name; | |
1457 | unsigned int exp; | |
c9900432 | 1458 | flagword flags, oldflags; |
252b5132 RH |
1459 | asection *sec; |
1460 | ||
1461 | if (flag_mri) | |
1462 | { | |
1463 | char type; | |
1464 | ||
1465 | s_mri_sect (&type); | |
1466 | return; | |
1467 | } | |
1468 | ||
1469 | section_name = input_line_pointer; | |
1470 | c = get_symbol_end (); | |
1471 | ||
1472 | name = xmalloc (input_line_pointer - section_name + 1); | |
1473 | strcpy (name, section_name); | |
1474 | ||
1475 | *input_line_pointer = c; | |
1476 | ||
1477 | SKIP_WHITESPACE (); | |
1478 | ||
1479 | exp = 0; | |
c9900432 | 1480 | flags = SEC_NO_FLAGS; |
252b5132 RH |
1481 | |
1482 | if (*input_line_pointer == ',') | |
1483 | { | |
1484 | ++input_line_pointer; | |
1485 | SKIP_WHITESPACE (); | |
1486 | if (*input_line_pointer != '"') | |
1487 | exp = get_absolute_expression (); | |
1488 | else | |
1489 | { | |
1490 | ++input_line_pointer; | |
1491 | while (*input_line_pointer != '"' | |
1492 | && ! is_end_of_line[(unsigned char) *input_line_pointer]) | |
1493 | { | |
1494 | switch (*input_line_pointer) | |
1495 | { | |
1496 | case 'b': flags |= SEC_ALLOC; flags &=~ SEC_LOAD; break; | |
1af96959 | 1497 | case 'n': flags &=~ SEC_LOAD; flags |= SEC_NEVER_LOAD; break; |
e96c5464 | 1498 | |
a5324a3e NC |
1499 | case 's': flags |= SEC_COFF_SHARED; /* Fall through. */ |
1500 | case 'd': flags |= SEC_DATA | SEC_LOAD; /* Fall through. */ | |
5881e4aa | 1501 | case 'w': flags &=~ SEC_READONLY; break; |
e96c5464 | 1502 | |
aaa2624b | 1503 | case 'a': break; /* For compatibility with ELF. */ |
5881e4aa | 1504 | case 'x': flags |= SEC_CODE | SEC_LOAD; break; |
b256d4fd | 1505 | case 'r': flags |= SEC_DATA | SEC_LOAD | SEC_READONLY; break; |
252b5132 RH |
1506 | |
1507 | case 'i': /* STYP_INFO */ | |
1508 | case 'l': /* STYP_LIB */ | |
1509 | case 'o': /* STYP_OVER */ | |
1510 | as_warn (_("unsupported section attribute '%c'"), | |
1511 | *input_line_pointer); | |
1512 | break; | |
1513 | ||
1514 | default: | |
a5324a3e NC |
1515 | as_warn (_("unknown section attribute '%c'"), |
1516 | *input_line_pointer); | |
252b5132 RH |
1517 | break; |
1518 | } | |
1519 | ++input_line_pointer; | |
1520 | } | |
1521 | if (*input_line_pointer == '"') | |
1522 | ++input_line_pointer; | |
1523 | } | |
1524 | } | |
1525 | ||
1526 | sec = subseg_new (name, (subsegT) exp); | |
1527 | ||
c9900432 NC |
1528 | oldflags = bfd_get_section_flags (stdoutput, sec); |
1529 | if (oldflags == SEC_NO_FLAGS) | |
252b5132 | 1530 | { |
c9900432 NC |
1531 | /* Set section flags for a new section just created by subseg_new. |
1532 | Provide a default if no flags were parsed. */ | |
1533 | if (flags == SEC_NO_FLAGS) | |
1ad5eac0 | 1534 | flags = TC_COFF_SECTION_DEFAULT_ATTRIBUTES; |
dcd619be | 1535 | |
c9900432 NC |
1536 | #ifdef COFF_LONG_SECTION_NAMES |
1537 | /* Add SEC_LINK_ONCE and SEC_LINK_DUPLICATES_DISCARD to .gnu.linkonce | |
1538 | sections so adjust_reloc_syms in write.c will correctly handle | |
1539 | relocs which refer to non-local symbols in these sections. */ | |
a5324a3e | 1540 | if (strneq (name, ".gnu.linkonce", sizeof (".gnu.linkonce") - 1)) |
cc8a6dd0 | 1541 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; |
c9900432 | 1542 | #endif |
252b5132 RH |
1543 | |
1544 | if (! bfd_set_section_flags (stdoutput, sec, flags)) | |
cc8a6dd0 KH |
1545 | as_warn (_("error setting flags for \"%s\": %s"), |
1546 | bfd_section_name (stdoutput, sec), | |
1547 | bfd_errmsg (bfd_get_error ())); | |
c9900432 NC |
1548 | } |
1549 | else if (flags != SEC_NO_FLAGS) | |
1550 | { | |
a5324a3e | 1551 | /* This section's attributes have already been set. Warn if the |
c9900432 | 1552 | attributes don't match. */ |
5dd0794d | 1553 | flagword matchflags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE |
ebe372c1 | 1554 | | SEC_DATA | SEC_COFF_SHARED | SEC_NEVER_LOAD); |
c9900432 NC |
1555 | if ((flags ^ oldflags) & matchflags) |
1556 | as_warn (_("Ignoring changed section attributes for %s"), name); | |
252b5132 RH |
1557 | } |
1558 | ||
1559 | demand_empty_rest_of_line (); | |
1560 | } | |
1561 | ||
1562 | void | |
a5324a3e | 1563 | coff_adjust_symtab (void) |
252b5132 RH |
1564 | { |
1565 | if (symbol_rootP == NULL | |
1566 | || S_GET_STORAGE_CLASS (symbol_rootP) != C_FILE) | |
a4528eeb | 1567 | c_dot_file_symbol ("fake", 0); |
252b5132 RH |
1568 | } |
1569 | ||
1570 | void | |
a5324a3e | 1571 | coff_frob_section (segT sec) |
252b5132 RH |
1572 | { |
1573 | segT strsec; | |
1574 | char *p; | |
1575 | fragS *fragp; | |
1576 | bfd_vma size, n_entries, mask; | |
bea9907b | 1577 | bfd_vma align_power = (bfd_vma)sec->alignment_power + OCTETS_PER_BYTE_POWER; |
252b5132 RH |
1578 | |
1579 | /* The COFF back end in BFD requires that all section sizes be | |
bea9907b TW |
1580 | rounded up to multiples of the corresponding section alignments, |
1581 | supposedly because standard COFF has no other way of encoding alignment | |
1582 | for sections. If your COFF flavor has a different way of encoding | |
dcd619be | 1583 | section alignment, then skip this step, as TICOFF does. */ |
587aac4e | 1584 | size = bfd_get_section_size (sec); |
bea9907b TW |
1585 | mask = ((bfd_vma) 1 << align_power) - 1; |
1586 | #if !defined(TICOFF) | |
252b5132 RH |
1587 | if (size & mask) |
1588 | { | |
7f788821 NC |
1589 | bfd_vma new_size; |
1590 | fragS *last; | |
dcd619be | 1591 | |
7f788821 NC |
1592 | new_size = (size + mask) & ~mask; |
1593 | bfd_set_section_size (stdoutput, sec, new_size); | |
1594 | ||
1595 | /* If the size had to be rounded up, add some padding in | |
1596 | the last non-empty frag. */ | |
1597 | fragp = seg_info (sec)->frchainP->frch_root; | |
1598 | last = seg_info (sec)->frchainP->frch_last; | |
1599 | while (fragp->fr_next != last) | |
cc8a6dd0 | 1600 | fragp = fragp->fr_next; |
7f788821 NC |
1601 | last->fr_address = size; |
1602 | fragp->fr_offset += new_size - size; | |
252b5132 | 1603 | } |
bea9907b | 1604 | #endif |
252b5132 RH |
1605 | |
1606 | /* If the section size is non-zero, the section symbol needs an aux | |
1607 | entry associated with it, indicating the size. We don't know | |
1608 | all the values yet; coff_frob_symbol will fill them in later. */ | |
bea9907b | 1609 | #ifndef TICOFF |
252b5132 RH |
1610 | if (size != 0 |
1611 | || sec == text_section | |
1612 | || sec == data_section | |
1613 | || sec == bss_section) | |
bea9907b | 1614 | #endif |
252b5132 RH |
1615 | { |
1616 | symbolS *secsym = section_symbol (sec); | |
1617 | ||
1618 | S_SET_STORAGE_CLASS (secsym, C_STAT); | |
1619 | S_SET_NUMBER_AUXILIARY (secsym, 1); | |
1620 | SF_SET_STATICS (secsym); | |
1621 | SA_SET_SCN_SCNLEN (secsym, size); | |
1622 | } | |
1623 | ||
a5324a3e | 1624 | /* FIXME: These should be in a "stabs.h" file, or maybe as.h. */ |
252b5132 RH |
1625 | #ifndef STAB_SECTION_NAME |
1626 | #define STAB_SECTION_NAME ".stab" | |
1627 | #endif | |
1628 | #ifndef STAB_STRING_SECTION_NAME | |
1629 | #define STAB_STRING_SECTION_NAME ".stabstr" | |
1630 | #endif | |
a5324a3e | 1631 | if (! streq (STAB_STRING_SECTION_NAME, sec->name)) |
252b5132 RH |
1632 | return; |
1633 | ||
1634 | strsec = sec; | |
1635 | sec = subseg_get (STAB_SECTION_NAME, 0); | |
1636 | /* size is already rounded up, since other section will be listed first */ | |
587aac4e | 1637 | size = bfd_get_section_size (strsec); |
252b5132 | 1638 | |
587aac4e | 1639 | n_entries = bfd_get_section_size (sec) / 12 - 1; |
252b5132 RH |
1640 | |
1641 | /* Find first non-empty frag. It should be large enough. */ | |
1642 | fragp = seg_info (sec)->frchainP->frch_root; | |
1643 | while (fragp && fragp->fr_fix == 0) | |
1644 | fragp = fragp->fr_next; | |
1645 | assert (fragp != 0 && fragp->fr_fix >= 12); | |
1646 | ||
1647 | /* Store the values. */ | |
1648 | p = fragp->fr_literal; | |
1649 | bfd_h_put_16 (stdoutput, n_entries, (bfd_byte *) p + 6); | |
1650 | bfd_h_put_32 (stdoutput, size, (bfd_byte *) p + 8); | |
1651 | } | |
1652 | ||
1653 | void | |
a5324a3e | 1654 | obj_coff_init_stab_section (segT seg) |
252b5132 RH |
1655 | { |
1656 | char *file; | |
1657 | char *p; | |
1658 | char *stabstr_name; | |
1659 | unsigned int stroff; | |
1660 | ||
dcd619be | 1661 | /* Make space for this first symbol. */ |
252b5132 | 1662 | p = frag_more (12); |
dcd619be | 1663 | /* Zero it out. */ |
252b5132 RH |
1664 | memset (p, 0, 12); |
1665 | as_where (&file, (unsigned int *) NULL); | |
a5324a3e | 1666 | stabstr_name = xmalloc (strlen (seg->name) + 4); |
252b5132 RH |
1667 | strcpy (stabstr_name, seg->name); |
1668 | strcat (stabstr_name, "str"); | |
1669 | stroff = get_stab_string_offset (file, stabstr_name); | |
1670 | know (stroff == 1); | |
1671 | md_number_to_chars (p, stroff, 4); | |
1672 | } | |
1673 | ||
1674 | #ifdef DEBUG | |
252b5132 | 1675 | const char * |
a5324a3e | 1676 | s_get_name (symbolS *s) |
252b5132 RH |
1677 | { |
1678 | return ((s == NULL) ? "(NULL)" : S_GET_NAME (s)); | |
1679 | } | |
1680 | ||
1681 | void | |
a5324a3e | 1682 | symbol_dump (void) |
252b5132 RH |
1683 | { |
1684 | symbolS *symbolP; | |
1685 | ||
1686 | for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next (symbolP)) | |
a5324a3e NC |
1687 | printf (_("0x%lx: \"%s\" type = %ld, class = %d, segment = %d\n"), |
1688 | (unsigned long) symbolP, | |
1689 | S_GET_NAME (symbolP), | |
1690 | (long) S_GET_DATA_TYPE (symbolP), | |
1691 | S_GET_STORAGE_CLASS (symbolP), | |
1692 | (int) S_GET_SEGMENT (symbolP)); | |
252b5132 RH |
1693 | } |
1694 | ||
1695 | #endif /* DEBUG */ | |
1696 | ||
7be1c489 | 1697 | const pseudo_typeS coff_pseudo_table[] = |
252b5132 | 1698 | { |
7be1c489 AM |
1699 | {"ABORT", s_abort, 0}, |
1700 | {"appline", obj_coff_ln, 1}, | |
1701 | /* We accept the .bss directive for backward compatibility with | |
1702 | earlier versions of gas. */ | |
1703 | {"bss", obj_coff_bss, 0}, | |
1704 | {"def", obj_coff_def, 0}, | |
1705 | {"dim", obj_coff_dim, 0}, | |
1706 | {"endef", obj_coff_endef, 0}, | |
1707 | {"ident", obj_coff_ident, 0}, | |
1708 | {"line", obj_coff_line, 0}, | |
1709 | {"ln", obj_coff_ln, 0}, | |
1710 | {"scl", obj_coff_scl, 0}, | |
1711 | {"sect", obj_coff_section, 0}, | |
1712 | {"sect.s", obj_coff_section, 0}, | |
1713 | {"section", obj_coff_section, 0}, | |
1714 | {"section.s", obj_coff_section, 0}, | |
1715 | /* FIXME: We ignore the MRI short attribute. */ | |
1716 | {"size", obj_coff_size, 0}, | |
1717 | {"tag", obj_coff_tag, 0}, | |
1718 | {"type", obj_coff_type, 0}, | |
1719 | {"val", obj_coff_val, 0}, | |
1720 | {"version", s_ignore, 0}, | |
1721 | {"loc", obj_coff_loc, 0}, | |
1722 | {"optim", s_ignore, 0}, /* For sun386i cc (?) */ | |
1723 | {"weak", obj_coff_weak, 0}, | |
1724 | #if defined TC_TIC4X | |
1725 | /* The tic4x uses sdef instead of def. */ | |
1726 | {"sdef", obj_coff_def, 0}, | |
252b5132 | 1727 | #endif |
7be1c489 AM |
1728 | {NULL, NULL, 0} |
1729 | }; | |
1730 | \f | |
252b5132 | 1731 | |
7be1c489 | 1732 | /* Support for a COFF emulation. */ |
252b5132 RH |
1733 | |
1734 | static void | |
7be1c489 | 1735 | coff_pop_insert (void) |
252b5132 | 1736 | { |
7be1c489 | 1737 | pop_insert (coff_pseudo_table); |
252b5132 RH |
1738 | } |
1739 | ||
a5324a3e | 1740 | static int |
7be1c489 | 1741 | coff_separate_stab_sections (void) |
a5324a3e | 1742 | { |
7be1c489 | 1743 | return 1; |
a5324a3e NC |
1744 | } |
1745 | ||
7be1c489 | 1746 | const struct format_ops coff_format_ops = |
252b5132 RH |
1747 | { |
1748 | bfd_target_coff_flavour, | |
4c63da97 AM |
1749 | 0, /* dfl_leading_underscore */ |
1750 | 1, /* emit_section_symbols */ | |
5110c57e HPN |
1751 | 0, /* begin */ |
1752 | c_dot_file_symbol, | |
252b5132 | 1753 | coff_frob_symbol, |
4c63da97 | 1754 | 0, /* frob_file */ |
339681c0 | 1755 | 0, /* frob_file_before_adjust */ |
a161fe53 | 1756 | 0, /* frob_file_before_fix */ |
252b5132 | 1757 | coff_frob_file_after_relocs, |
4c63da97 AM |
1758 | 0, /* s_get_size */ |
1759 | 0, /* s_set_size */ | |
1760 | 0, /* s_get_align */ | |
1761 | 0, /* s_set_align */ | |
1762 | 0, /* s_get_other */ | |
5110c57e | 1763 | 0, /* s_set_other */ |
4c63da97 | 1764 | 0, /* s_get_desc */ |
5110c57e HPN |
1765 | 0, /* s_set_desc */ |
1766 | 0, /* s_get_type */ | |
1767 | 0, /* s_set_type */ | |
4c63da97 AM |
1768 | 0, /* copy_symbol_attributes */ |
1769 | 0, /* generate_asm_lineno */ | |
1770 | 0, /* process_stab */ | |
5110c57e HPN |
1771 | coff_separate_stab_sections, |
1772 | obj_coff_init_stab_section, | |
4c63da97 | 1773 | 0, /* sec_sym_ok_for_reloc */ |
252b5132 | 1774 | coff_pop_insert, |
4c63da97 | 1775 | 0, /* ecoff_set_ext */ |
252b5132 | 1776 | coff_obj_read_begin_hook, |
4c63da97 | 1777 | coff_obj_symbol_new_hook |
252b5132 | 1778 | }; |