Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* coff object file format |
49309057 | 2 | Copyright (C) 1989, 90, 91, 92, 93, 94, 95, 96, 97, 98, 1999 |
252b5132 RH |
3 | Free Software Foundation, Inc. |
4 | ||
5 | This file is part of GAS. | |
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 2, 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 | #define OBJ_HEADER "obj-coff.h" | |
23 | ||
24 | #include "as.h" | |
25 | #include "obstack.h" | |
26 | #include "subsegs.h" | |
27 | ||
28 | /* I think this is probably always correct. */ | |
29 | #ifndef KEEP_RELOC_INFO | |
30 | #define KEEP_RELOC_INFO | |
31 | #endif | |
32 | ||
33 | static void obj_coff_bss PARAMS ((int)); | |
34 | const char *s_get_name PARAMS ((symbolS * s)); | |
0561a208 ILT |
35 | static void obj_coff_ln PARAMS ((int)); |
36 | static void obj_coff_def PARAMS ((int)); | |
37 | static void obj_coff_endef PARAMS ((int)); | |
38 | static void obj_coff_dim PARAMS ((int)); | |
39 | static void obj_coff_line PARAMS ((int)); | |
40 | static void obj_coff_size PARAMS ((int)); | |
41 | static void obj_coff_scl PARAMS ((int)); | |
42 | static void obj_coff_tag PARAMS ((int)); | |
43 | static void obj_coff_val PARAMS ((int)); | |
44 | static void obj_coff_type PARAMS ((int)); | |
7a6284c4 | 45 | static void obj_coff_ident PARAMS ((int)); |
28428223 ILT |
46 | #ifdef BFD_ASSEMBLER |
47 | static void obj_coff_loc PARAMS((int)); | |
48 | #endif | |
0561a208 ILT |
49 | |
50 | /* This is used to hold the symbol built by a sequence of pseudo-ops | |
51 | from .def and .endef. */ | |
252b5132 | 52 | static symbolS *def_symbol_in_progress; |
252b5132 RH |
53 | \f |
54 | /* stack stuff */ | |
55 | typedef struct | |
56 | { | |
57 | unsigned long chunk_size; | |
58 | unsigned long element_size; | |
59 | unsigned long size; | |
60 | char *data; | |
61 | unsigned long pointer; | |
62 | } | |
63 | stack; | |
64 | ||
65 | static stack * | |
66 | stack_init (chunk_size, element_size) | |
67 | unsigned long chunk_size; | |
68 | unsigned long element_size; | |
69 | { | |
70 | stack *st; | |
71 | ||
72 | st = (stack *) malloc (sizeof (stack)); | |
73 | if (!st) | |
74 | return 0; | |
75 | st->data = malloc (chunk_size); | |
76 | if (!st->data) | |
77 | { | |
78 | free (st); | |
79 | return 0; | |
80 | } | |
81 | st->pointer = 0; | |
82 | st->size = chunk_size; | |
83 | st->chunk_size = chunk_size; | |
84 | st->element_size = element_size; | |
85 | return st; | |
86 | } | |
87 | ||
88 | #if 0 | |
89 | /* Not currently used. */ | |
90 | static void | |
91 | stack_delete (st) | |
92 | stack *st; | |
93 | { | |
94 | free (st->data); | |
95 | free (st); | |
96 | } | |
97 | #endif | |
98 | ||
99 | static char * | |
100 | stack_push (st, element) | |
101 | stack *st; | |
102 | char *element; | |
103 | { | |
104 | if (st->pointer + st->element_size >= st->size) | |
105 | { | |
106 | st->size += st->chunk_size; | |
107 | if ((st->data = xrealloc (st->data, st->size)) == (char *) 0) | |
108 | return (char *) 0; | |
109 | } | |
110 | memcpy (st->data + st->pointer, element, st->element_size); | |
111 | st->pointer += st->element_size; | |
112 | return st->data + st->pointer; | |
113 | } | |
114 | ||
115 | static char * | |
116 | stack_pop (st) | |
117 | stack *st; | |
118 | { | |
119 | if (st->pointer < st->element_size) | |
120 | { | |
121 | st->pointer = 0; | |
122 | return (char *) 0; | |
123 | } | |
124 | st->pointer -= st->element_size; | |
125 | return st->data + st->pointer; | |
126 | } | |
127 | \f | |
128 | /* | |
129 | * Maintain a list of the tagnames of the structres. | |
130 | */ | |
131 | ||
132 | static struct hash_control *tag_hash; | |
133 | ||
134 | static void | |
135 | tag_init () | |
136 | { | |
137 | tag_hash = hash_new (); | |
138 | } | |
139 | ||
140 | static void | |
141 | tag_insert (name, symbolP) | |
142 | const char *name; | |
143 | symbolS *symbolP; | |
144 | { | |
145 | const char *error_string; | |
146 | ||
147 | if ((error_string = hash_jam (tag_hash, name, (char *) symbolP))) | |
148 | { | |
149 | as_fatal (_("Inserting \"%s\" into structure table failed: %s"), | |
150 | name, error_string); | |
151 | } | |
152 | } | |
153 | ||
154 | static symbolS * | |
155 | tag_find (name) | |
156 | char *name; | |
157 | { | |
158 | #ifdef STRIP_UNDERSCORE | |
159 | if (*name == '_') | |
160 | name++; | |
161 | #endif /* STRIP_UNDERSCORE */ | |
162 | return (symbolS *) hash_find (tag_hash, name); | |
163 | } | |
164 | ||
165 | static symbolS * | |
166 | tag_find_or_make (name) | |
167 | char *name; | |
168 | { | |
169 | symbolS *symbolP; | |
170 | ||
171 | if ((symbolP = tag_find (name)) == NULL) | |
172 | { | |
173 | symbolP = symbol_new (name, undefined_section, | |
174 | 0, &zero_address_frag); | |
175 | ||
176 | tag_insert (S_GET_NAME (symbolP), symbolP); | |
177 | #ifdef BFD_ASSEMBLER | |
178 | symbol_table_insert (symbolP); | |
179 | #endif | |
180 | } /* not found */ | |
181 | ||
182 | return symbolP; | |
183 | } | |
184 | ||
185 | /* We accept the .bss directive to set the section for backward | |
186 | compatibility with earlier versions of gas. */ | |
187 | ||
188 | static void | |
189 | obj_coff_bss (ignore) | |
a04b544b | 190 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
191 | { |
192 | if (*input_line_pointer == '\n') | |
193 | subseg_new (".bss", get_absolute_expression ()); | |
194 | else | |
195 | s_lcomm (0); | |
196 | } | |
197 | ||
198 | /* Handle .weak. This is a GNU extension. */ | |
199 | ||
200 | static void | |
201 | obj_coff_weak (ignore) | |
a04b544b | 202 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
203 | { |
204 | char *name; | |
205 | int c; | |
206 | symbolS *symbolP; | |
207 | ||
208 | do | |
209 | { | |
210 | name = input_line_pointer; | |
211 | c = get_symbol_end (); | |
212 | symbolP = symbol_find_or_make (name); | |
213 | *input_line_pointer = c; | |
214 | SKIP_WHITESPACE (); | |
215 | ||
216 | #ifdef BFD_ASSEMLER | |
217 | S_SET_WEAK (symbolP); | |
218 | #endif | |
219 | ||
220 | #ifdef TE_PE | |
221 | S_SET_STORAGE_CLASS (symbolP, C_NT_WEAK); | |
222 | #else | |
223 | S_SET_STORAGE_CLASS (symbolP, C_WEAKEXT); | |
224 | #endif | |
225 | ||
226 | if (c == ',') | |
227 | { | |
228 | input_line_pointer++; | |
229 | SKIP_WHITESPACE (); | |
230 | if (*input_line_pointer == '\n') | |
231 | c = '\n'; | |
232 | } | |
233 | } | |
234 | while (c == ','); | |
235 | ||
236 | demand_empty_rest_of_line (); | |
237 | } | |
238 | ||
239 | #ifdef BFD_ASSEMBLER | |
240 | ||
241 | static void SA_SET_SYM_TAGNDX PARAMS ((symbolS *, symbolS *)); | |
242 | ||
243 | #define GET_FILENAME_STRING(X) \ | |
244 | ((char*)(&((X)->sy_symbol.ost_auxent->x_file.x_n.x_offset))[1]) | |
245 | ||
246 | /* @@ Ick. */ | |
247 | static segT | |
248 | fetch_coff_debug_section () | |
249 | { | |
250 | static segT debug_section; | |
251 | if (!debug_section) | |
252 | { | |
253 | CONST asymbol *s; | |
254 | s = bfd_make_debug_symbol (stdoutput, (char *) 0, 0); | |
255 | assert (s != 0); | |
256 | debug_section = s->section; | |
257 | } | |
258 | return debug_section; | |
259 | } | |
260 | ||
261 | void | |
262 | SA_SET_SYM_ENDNDX (sym, val) | |
263 | symbolS *sym; | |
264 | symbolS *val; | |
265 | { | |
266 | combined_entry_type *entry, *p; | |
267 | ||
49309057 ILT |
268 | entry = &coffsymbol (symbol_get_bfdsym (sym))->native[1]; |
269 | p = coffsymbol (symbol_get_bfdsym (val))->native; | |
252b5132 RH |
270 | entry->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p = p; |
271 | entry->fix_end = 1; | |
272 | } | |
273 | ||
274 | static void | |
275 | SA_SET_SYM_TAGNDX (sym, val) | |
276 | symbolS *sym; | |
277 | symbolS *val; | |
278 | { | |
279 | combined_entry_type *entry, *p; | |
280 | ||
49309057 ILT |
281 | entry = &coffsymbol (symbol_get_bfdsym (sym))->native[1]; |
282 | p = coffsymbol (symbol_get_bfdsym (val))->native; | |
252b5132 RH |
283 | entry->u.auxent.x_sym.x_tagndx.p = p; |
284 | entry->fix_tag = 1; | |
285 | } | |
286 | ||
287 | static int | |
288 | S_GET_DATA_TYPE (sym) | |
289 | symbolS *sym; | |
290 | { | |
49309057 | 291 | return coffsymbol (symbol_get_bfdsym (sym))->native->u.syment.n_type; |
252b5132 RH |
292 | } |
293 | ||
294 | int | |
295 | S_SET_DATA_TYPE (sym, val) | |
296 | symbolS *sym; | |
297 | int val; | |
298 | { | |
49309057 | 299 | coffsymbol (symbol_get_bfdsym (sym))->native->u.syment.n_type = val; |
252b5132 RH |
300 | return val; |
301 | } | |
302 | ||
303 | int | |
304 | S_GET_STORAGE_CLASS (sym) | |
305 | symbolS *sym; | |
306 | { | |
49309057 | 307 | return coffsymbol (symbol_get_bfdsym (sym))->native->u.syment.n_sclass; |
252b5132 RH |
308 | } |
309 | ||
310 | int | |
311 | S_SET_STORAGE_CLASS (sym, val) | |
312 | symbolS *sym; | |
313 | int val; | |
314 | { | |
49309057 | 315 | coffsymbol (symbol_get_bfdsym (sym))->native->u.syment.n_sclass = val; |
252b5132 RH |
316 | return val; |
317 | } | |
318 | ||
319 | /* Merge a debug symbol containing debug information into a normal symbol. */ | |
320 | ||
321 | void | |
322 | c_symbol_merge (debug, normal) | |
323 | symbolS *debug; | |
324 | symbolS *normal; | |
325 | { | |
326 | S_SET_DATA_TYPE (normal, S_GET_DATA_TYPE (debug)); | |
327 | S_SET_STORAGE_CLASS (normal, S_GET_STORAGE_CLASS (debug)); | |
328 | ||
329 | if (S_GET_NUMBER_AUXILIARY (debug) > S_GET_NUMBER_AUXILIARY (normal)) | |
330 | { | |
331 | /* take the most we have */ | |
332 | S_SET_NUMBER_AUXILIARY (normal, S_GET_NUMBER_AUXILIARY (debug)); | |
333 | } | |
334 | ||
335 | if (S_GET_NUMBER_AUXILIARY (debug) > 0) | |
336 | { | |
337 | /* Move all the auxiliary information. */ | |
338 | memcpy (SYM_AUXINFO (normal), SYM_AUXINFO (debug), | |
339 | (S_GET_NUMBER_AUXILIARY (debug) | |
340 | * sizeof (*SYM_AUXINFO (debug)))); | |
341 | } | |
342 | ||
343 | /* Move the debug flags. */ | |
344 | SF_SET_DEBUG_FIELD (normal, SF_GET_DEBUG_FIELD (debug)); | |
345 | } | |
346 | ||
347 | void | |
348 | c_dot_file_symbol (filename) | |
349 | char *filename; | |
350 | { | |
351 | symbolS *symbolP; | |
352 | ||
0561a208 ILT |
353 | /* BFD converts filename to a .file symbol with an aux entry. It |
354 | also handles chaining. */ | |
252b5132 RH |
355 | symbolP = symbol_new (filename, bfd_abs_section_ptr, 0, &zero_address_frag); |
356 | ||
357 | S_SET_STORAGE_CLASS (symbolP, C_FILE); | |
358 | S_SET_NUMBER_AUXILIARY (symbolP, 1); | |
359 | ||
49309057 | 360 | symbol_get_bfdsym (symbolP)->flags = BSF_DEBUGGING; |
252b5132 RH |
361 | |
362 | #ifndef NO_LISTING | |
363 | { | |
364 | extern int listing; | |
365 | if (listing) | |
366 | { | |
367 | listing_source_file (filename); | |
368 | } | |
369 | } | |
370 | #endif | |
371 | ||
372 | /* Make sure that the symbol is first on the symbol chain */ | |
373 | if (symbol_rootP != symbolP) | |
374 | { | |
375 | symbol_remove (symbolP, &symbol_rootP, &symbol_lastP); | |
376 | symbol_insert (symbolP, symbol_rootP, &symbol_rootP, &symbol_lastP); | |
377 | } /* if not first on the list */ | |
378 | } | |
379 | ||
380 | /* Line number handling */ | |
381 | ||
382 | struct line_no { | |
383 | struct line_no *next; | |
384 | fragS *frag; | |
385 | alent l; | |
386 | }; | |
387 | ||
388 | int coff_line_base; | |
389 | ||
390 | /* Symbol of last function, which we should hang line#s off of. */ | |
391 | static symbolS *line_fsym; | |
392 | ||
393 | #define in_function() (line_fsym != 0) | |
394 | #define clear_function() (line_fsym = 0) | |
395 | #define set_function(F) (line_fsym = (F), coff_add_linesym (F)) | |
396 | ||
397 | \f | |
398 | void | |
399 | coff_obj_symbol_new_hook (symbolP) | |
400 | symbolS *symbolP; | |
401 | { | |
402 | long sz = (OBJ_COFF_MAX_AUXENTRIES + 1) * sizeof (combined_entry_type); | |
403 | char * s = (char *) xmalloc (sz); | |
404 | ||
405 | memset (s, 0, sz); | |
49309057 | 406 | coffsymbol (symbol_get_bfdsym (symbolP))->native = (combined_entry_type *) s; |
252b5132 RH |
407 | |
408 | S_SET_DATA_TYPE (symbolP, T_NULL); | |
409 | S_SET_STORAGE_CLASS (symbolP, 0); | |
410 | S_SET_NUMBER_AUXILIARY (symbolP, 0); | |
411 | ||
412 | if (S_IS_STRING (symbolP)) | |
413 | SF_SET_STRING (symbolP); | |
414 | ||
415 | if (S_IS_LOCAL (symbolP)) | |
416 | SF_SET_LOCAL (symbolP); | |
417 | } | |
418 | ||
419 | \f | |
420 | /* | |
421 | * Handle .ln directives. | |
422 | */ | |
423 | ||
424 | static symbolS *current_lineno_sym; | |
425 | static struct line_no *line_nos; | |
426 | /* @@ Blindly assume all .ln directives will be in the .text section... */ | |
427 | int coff_n_line_nos; | |
428 | ||
429 | static void | |
430 | add_lineno (frag, offset, num) | |
431 | fragS *frag; | |
432 | int offset; | |
433 | int num; | |
434 | { | |
435 | struct line_no *new_line = | |
436 | (struct line_no *) xmalloc (sizeof (struct line_no)); | |
437 | if (!current_lineno_sym) | |
438 | { | |
439 | abort (); | |
440 | } | |
e8a3ab75 ILT |
441 | if (num <= 0) |
442 | { | |
443 | /* Zero is used as an end marker in the file. */ | |
444 | as_bad (_("Line numbers must be positive integers\n")); | |
445 | return; | |
446 | } | |
252b5132 RH |
447 | new_line->next = line_nos; |
448 | new_line->frag = frag; | |
449 | new_line->l.line_number = num; | |
450 | new_line->l.u.offset = offset; | |
451 | line_nos = new_line; | |
452 | coff_n_line_nos++; | |
453 | } | |
454 | ||
455 | void | |
456 | coff_add_linesym (sym) | |
457 | symbolS *sym; | |
458 | { | |
459 | if (line_nos) | |
460 | { | |
49309057 ILT |
461 | coffsymbol (symbol_get_bfdsym (current_lineno_sym))->lineno = |
462 | (alent *) line_nos; | |
252b5132 RH |
463 | coff_n_line_nos++; |
464 | line_nos = 0; | |
465 | } | |
466 | current_lineno_sym = sym; | |
467 | } | |
468 | ||
469 | static void | |
470 | obj_coff_ln (appline) | |
471 | int appline; | |
472 | { | |
473 | int l; | |
474 | ||
475 | if (! appline && def_symbol_in_progress != NULL) | |
476 | { | |
477 | as_warn (_(".ln pseudo-op inside .def/.endef: ignored.")); | |
478 | demand_empty_rest_of_line (); | |
479 | return; | |
480 | } | |
481 | ||
482 | l = get_absolute_expression (); | |
483 | if (!appline) | |
484 | { | |
485 | add_lineno (frag_now, frag_now_fix (), l); | |
486 | } | |
487 | ||
488 | if (appline) | |
489 | new_logical_line ((char *) NULL, l - 1); | |
490 | ||
491 | #ifndef NO_LISTING | |
492 | { | |
493 | extern int listing; | |
494 | ||
495 | if (listing) | |
496 | { | |
497 | if (! appline) | |
498 | l += coff_line_base - 1; | |
499 | listing_source_line (l); | |
500 | } | |
501 | } | |
502 | #endif | |
503 | ||
504 | demand_empty_rest_of_line (); | |
505 | } | |
506 | ||
28428223 ILT |
507 | /* .loc is essentially the same as .ln; parse it for assembler |
508 | compatibility. */ | |
509 | ||
510 | static void | |
511 | obj_coff_loc (ignore) | |
512 | int ignore ATTRIBUTE_UNUSED; | |
513 | { | |
514 | int lineno; | |
515 | ||
516 | /* FIXME: Why do we need this check? We need it for ECOFF, but why | |
517 | do we need it for COFF? */ | |
518 | if (now_seg != text_section) | |
519 | { | |
520 | as_warn (_(".loc outside of .text")); | |
521 | demand_empty_rest_of_line (); | |
522 | return; | |
523 | } | |
524 | ||
525 | if (def_symbol_in_progress != NULL) | |
526 | { | |
527 | as_warn (_(".loc pseudo-op inside .def/.endef: ignored.")); | |
528 | demand_empty_rest_of_line (); | |
529 | return; | |
530 | } | |
531 | ||
532 | /* Skip the file number. */ | |
533 | SKIP_WHITESPACE (); | |
534 | get_absolute_expression (); | |
535 | SKIP_WHITESPACE (); | |
536 | ||
537 | lineno = get_absolute_expression (); | |
538 | ||
539 | #ifndef NO_LISTING | |
540 | { | |
541 | extern int listing; | |
542 | ||
543 | if (listing) | |
544 | { | |
545 | lineno += coff_line_base - 1; | |
546 | listing_source_line (lineno); | |
547 | } | |
548 | } | |
549 | #endif | |
550 | ||
551 | demand_empty_rest_of_line (); | |
552 | ||
553 | add_lineno (frag_now, frag_now_fix (), lineno); | |
554 | } | |
555 | ||
7a6284c4 ILT |
556 | /* Handle the .ident pseudo-op. */ |
557 | ||
558 | static void | |
559 | obj_coff_ident (ignore) | |
560 | int ignore ATTRIBUTE_UNUSED; | |
561 | { | |
562 | segT current_seg = now_seg; | |
563 | subsegT current_subseg = now_subseg; | |
564 | ||
565 | #ifdef TE_PE | |
566 | { | |
567 | segT sec; | |
568 | ||
569 | /* We could put it in .comment, but that creates an extra section | |
570 | that shouldn't be loaded into memory, which requires linker | |
571 | changes... For now, until proven otherwise, use .rdata. */ | |
572 | sec = subseg_new (".rdata$zzz", 0); | |
573 | bfd_set_section_flags (stdoutput, sec, | |
574 | ((SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA) | |
575 | & bfd_applicable_section_flags (stdoutput))); | |
576 | } | |
577 | #else | |
578 | subseg_new (".comment", 0); | |
579 | #endif | |
580 | ||
581 | stringer (1); | |
582 | subseg_set (current_seg, current_subseg); | |
583 | } | |
584 | ||
252b5132 RH |
585 | /* |
586 | * def() | |
587 | * | |
588 | * Handle .def directives. | |
589 | * | |
590 | * One might ask : why can't we symbol_new if the symbol does not | |
591 | * already exist and fill it with debug information. Because of | |
592 | * the C_EFCN special symbol. It would clobber the value of the | |
593 | * function symbol before we have a chance to notice that it is | |
594 | * a C_EFCN. And a second reason is that the code is more clear this | |
595 | * way. (at least I think it is :-). | |
596 | * | |
597 | */ | |
598 | ||
599 | #define SKIP_SEMI_COLON() while (*input_line_pointer++ != ';') | |
600 | #define SKIP_WHITESPACES() while (*input_line_pointer == ' ' || \ | |
601 | *input_line_pointer == '\t') \ | |
602 | input_line_pointer++; | |
603 | ||
604 | static void | |
605 | obj_coff_def (what) | |
c4bf532f | 606 | int what ATTRIBUTE_UNUSED; |
252b5132 RH |
607 | { |
608 | char name_end; /* Char after the end of name */ | |
609 | char *symbol_name; /* Name of the debug symbol */ | |
610 | char *symbol_name_copy; /* Temporary copy of the name */ | |
611 | unsigned int symbol_name_length; | |
612 | ||
613 | if (def_symbol_in_progress != NULL) | |
614 | { | |
615 | as_warn (_(".def pseudo-op used inside of .def/.endef: ignored.")); | |
616 | demand_empty_rest_of_line (); | |
617 | return; | |
618 | } /* if not inside .def/.endef */ | |
619 | ||
620 | SKIP_WHITESPACES (); | |
621 | ||
622 | symbol_name = input_line_pointer; | |
623 | #ifdef STRIP_UNDERSCORE | |
624 | if (symbol_name[0] == '_' && symbol_name[1] != 0) | |
625 | symbol_name++; | |
626 | #endif /* STRIP_UNDERSCORE */ | |
627 | ||
628 | name_end = get_symbol_end (); | |
629 | symbol_name_length = strlen (symbol_name); | |
630 | symbol_name_copy = xmalloc (symbol_name_length + 1); | |
631 | strcpy (symbol_name_copy, symbol_name); | |
632 | #ifdef tc_canonicalize_symbol_name | |
633 | symbol_name_copy = tc_canonicalize_symbol_name (symbol_name_copy); | |
634 | #endif | |
635 | ||
636 | /* Initialize the new symbol */ | |
637 | def_symbol_in_progress = symbol_make (symbol_name_copy); | |
49309057 | 638 | symbol_set_frag (def_symbol_in_progress, &zero_address_frag); |
252b5132 RH |
639 | S_SET_VALUE (def_symbol_in_progress, 0); |
640 | ||
641 | if (S_IS_STRING (def_symbol_in_progress)) | |
642 | SF_SET_STRING (def_symbol_in_progress); | |
643 | ||
644 | *input_line_pointer = name_end; | |
645 | ||
646 | demand_empty_rest_of_line (); | |
647 | } | |
648 | ||
649 | unsigned int dim_index; | |
650 | ||
651 | static void | |
652 | obj_coff_endef (ignore) | |
c4bf532f | 653 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
654 | { |
655 | symbolS *symbolP; | |
656 | ||
657 | /* DIM BUG FIX sac@cygnus.com */ | |
658 | dim_index = 0; | |
659 | if (def_symbol_in_progress == NULL) | |
660 | { | |
661 | as_warn (_(".endef pseudo-op used outside of .def/.endef: ignored.")); | |
662 | demand_empty_rest_of_line (); | |
663 | return; | |
664 | } /* if not inside .def/.endef */ | |
665 | ||
666 | /* Set the section number according to storage class. */ | |
667 | switch (S_GET_STORAGE_CLASS (def_symbol_in_progress)) | |
668 | { | |
669 | case C_STRTAG: | |
670 | case C_ENTAG: | |
671 | case C_UNTAG: | |
672 | SF_SET_TAG (def_symbol_in_progress); | |
673 | /* intentional fallthrough */ | |
674 | case C_FILE: | |
675 | case C_TPDEF: | |
676 | SF_SET_DEBUG (def_symbol_in_progress); | |
677 | S_SET_SEGMENT (def_symbol_in_progress, fetch_coff_debug_section ()); | |
678 | break; | |
679 | ||
680 | case C_EFCN: | |
681 | SF_SET_LOCAL (def_symbol_in_progress); /* Do not emit this symbol. */ | |
682 | /* intentional fallthrough */ | |
683 | case C_BLOCK: | |
684 | SF_SET_PROCESS (def_symbol_in_progress); /* Will need processing before writing */ | |
685 | /* intentional fallthrough */ | |
686 | case C_FCN: | |
687 | { | |
688 | CONST char *name; | |
689 | S_SET_SEGMENT (def_symbol_in_progress, text_section); | |
690 | ||
49309057 | 691 | name = S_GET_NAME (def_symbol_in_progress); |
23dab925 ILT |
692 | if (name[0] == '.' && name[2] == 'f' && name[3] == '\0') |
693 | { | |
694 | switch (name[1]) | |
695 | { | |
696 | case 'b': | |
697 | /* .bf */ | |
698 | if (! in_function ()) | |
699 | as_warn (_("`%s' symbol without preceding function"), name); | |
700 | /* Will need relocating. */ | |
701 | SF_SET_PROCESS (def_symbol_in_progress); | |
702 | clear_function (); | |
703 | break; | |
704 | #ifdef TE_PE | |
705 | case 'e': | |
706 | /* .ef */ | |
707 | /* The MS compilers output the actual endline, not the | |
708 | function-relative one... we want to match without | |
709 | changing the assembler input. */ | |
710 | SA_SET_SYM_LNNO (def_symbol_in_progress, | |
711 | (SA_GET_SYM_LNNO (def_symbol_in_progress) | |
712 | + coff_line_base)); | |
713 | break; | |
714 | #endif | |
715 | } | |
252b5132 RH |
716 | } |
717 | } | |
718 | break; | |
719 | ||
720 | #ifdef C_AUTOARG | |
721 | case C_AUTOARG: | |
722 | #endif /* C_AUTOARG */ | |
723 | case C_AUTO: | |
724 | case C_REG: | |
725 | case C_ARG: | |
726 | case C_REGPARM: | |
727 | case C_FIELD: | |
728 | SF_SET_DEBUG (def_symbol_in_progress); | |
729 | S_SET_SEGMENT (def_symbol_in_progress, absolute_section); | |
730 | break; | |
731 | ||
732 | case C_MOS: | |
733 | case C_MOE: | |
734 | case C_MOU: | |
735 | case C_EOS: | |
736 | S_SET_SEGMENT (def_symbol_in_progress, absolute_section); | |
737 | break; | |
738 | ||
739 | case C_EXT: | |
740 | case C_WEAKEXT: | |
741 | #ifdef TE_PE | |
742 | case C_NT_WEAK: | |
743 | #endif | |
744 | case C_STAT: | |
745 | case C_LABEL: | |
746 | /* Valid but set somewhere else (s_comm, s_lcomm, colon) */ | |
747 | break; | |
748 | ||
749 | default: | |
750 | case C_USTATIC: | |
751 | case C_EXTDEF: | |
752 | case C_ULABEL: | |
753 | as_warn (_("unexpected storage class %d"), | |
754 | S_GET_STORAGE_CLASS (def_symbol_in_progress)); | |
755 | break; | |
756 | } /* switch on storage class */ | |
757 | ||
758 | /* Now that we have built a debug symbol, try to find if we should | |
759 | merge with an existing symbol or not. If a symbol is C_EFCN or | |
9690c54d ILT |
760 | absolute_section or untagged SEG_DEBUG it never merges. We also |
761 | don't merge labels, which are in a different namespace, nor | |
762 | symbols which have not yet been defined since they are typically | |
763 | unique, nor do we merge tags with non-tags. */ | |
252b5132 RH |
764 | |
765 | /* Two cases for functions. Either debug followed by definition or | |
766 | definition followed by debug. For definition first, we will | |
767 | merge the debug symbol into the definition. For debug first, the | |
768 | lineno entry MUST point to the definition function or else it | |
769 | will point off into space when obj_crawl_symbol_chain() merges | |
770 | the debug symbol into the real symbol. Therefor, let's presume | |
771 | the debug symbol is a real function reference. */ | |
772 | ||
773 | /* FIXME-SOON If for some reason the definition label/symbol is | |
774 | never seen, this will probably leave an undefined symbol at link | |
775 | time. */ | |
776 | ||
777 | if (S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_EFCN | |
9690c54d | 778 | || S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_LABEL |
252b5132 RH |
779 | || (!strcmp (bfd_get_section_name (stdoutput, |
780 | S_GET_SEGMENT (def_symbol_in_progress)), | |
781 | "*DEBUG*") | |
782 | && !SF_GET_TAG (def_symbol_in_progress)) | |
783 | || S_GET_SEGMENT (def_symbol_in_progress) == absolute_section | |
9690c54d ILT |
784 | || ! symbol_constant_p (def_symbol_in_progress) |
785 | || (symbolP = symbol_find_base (S_GET_NAME (def_symbol_in_progress), | |
786 | DO_NOT_STRIP)) == NULL | |
787 | || SF_GET_TAG (def_symbol_in_progress) != SF_GET_TAG (symbolP)) | |
252b5132 | 788 | { |
9690c54d | 789 | /* If it already is at the end of the symbol list, do nothing */ |
252b5132 | 790 | if (def_symbol_in_progress != symbol_lastP) |
9690c54d ILT |
791 | { |
792 | symbol_remove (def_symbol_in_progress, &symbol_rootP, &symbol_lastP); | |
793 | symbol_append (def_symbol_in_progress, symbol_lastP, &symbol_rootP, | |
794 | &symbol_lastP); | |
795 | } | |
252b5132 RH |
796 | } |
797 | else | |
798 | { | |
799 | /* This symbol already exists, merge the newly created symbol | |
800 | into the old one. This is not mandatory. The linker can | |
801 | handle duplicate symbols correctly. But I guess that it save | |
802 | a *lot* of space if the assembly file defines a lot of | |
803 | symbols. [loic] */ | |
804 | ||
805 | /* The debug entry (def_symbol_in_progress) is merged into the | |
806 | previous definition. */ | |
807 | ||
808 | c_symbol_merge (def_symbol_in_progress, symbolP); | |
809 | symbol_remove (def_symbol_in_progress, &symbol_rootP, &symbol_lastP); | |
810 | ||
811 | def_symbol_in_progress = symbolP; | |
812 | ||
813 | if (SF_GET_FUNCTION (def_symbol_in_progress) | |
814 | || SF_GET_TAG (def_symbol_in_progress) | |
815 | || S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_STAT) | |
816 | { | |
817 | /* For functions, and tags, and static symbols, the symbol | |
818 | *must* be where the debug symbol appears. Move the | |
819 | existing symbol to the current place. */ | |
820 | /* If it already is at the end of the symbol list, do nothing */ | |
821 | if (def_symbol_in_progress != symbol_lastP) | |
822 | { | |
823 | symbol_remove (def_symbol_in_progress, &symbol_rootP, &symbol_lastP); | |
824 | symbol_append (def_symbol_in_progress, symbol_lastP, &symbol_rootP, &symbol_lastP); | |
825 | } | |
826 | } | |
827 | } | |
828 | ||
829 | if (SF_GET_TAG (def_symbol_in_progress)) | |
830 | { | |
831 | symbolS *oldtag; | |
832 | ||
833 | oldtag = symbol_find_base (S_GET_NAME (def_symbol_in_progress), | |
834 | DO_NOT_STRIP); | |
835 | if (oldtag == NULL || ! SF_GET_TAG (oldtag)) | |
836 | tag_insert (S_GET_NAME (def_symbol_in_progress), | |
837 | def_symbol_in_progress); | |
838 | } | |
839 | ||
840 | if (SF_GET_FUNCTION (def_symbol_in_progress)) | |
841 | { | |
842 | know (sizeof (def_symbol_in_progress) <= sizeof (long)); | |
843 | set_function (def_symbol_in_progress); | |
844 | SF_SET_PROCESS (def_symbol_in_progress); | |
845 | ||
846 | if (symbolP == NULL) | |
847 | { | |
848 | /* That is, if this is the first time we've seen the | |
849 | function... */ | |
850 | symbol_table_insert (def_symbol_in_progress); | |
851 | } /* definition follows debug */ | |
852 | } /* Create the line number entry pointing to the function being defined */ | |
853 | ||
854 | def_symbol_in_progress = NULL; | |
855 | demand_empty_rest_of_line (); | |
856 | } | |
857 | ||
858 | static void | |
859 | obj_coff_dim (ignore) | |
c4bf532f | 860 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
861 | { |
862 | int dim_index; | |
863 | ||
864 | if (def_symbol_in_progress == NULL) | |
865 | { | |
866 | as_warn (_(".dim pseudo-op used outside of .def/.endef: ignored.")); | |
867 | demand_empty_rest_of_line (); | |
868 | return; | |
869 | } /* if not inside .def/.endef */ | |
870 | ||
871 | S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); | |
872 | ||
873 | for (dim_index = 0; dim_index < DIMNUM; dim_index++) | |
874 | { | |
875 | SKIP_WHITESPACES (); | |
876 | SA_SET_SYM_DIMEN (def_symbol_in_progress, dim_index, | |
877 | get_absolute_expression ()); | |
878 | ||
879 | switch (*input_line_pointer) | |
880 | { | |
881 | case ',': | |
882 | input_line_pointer++; | |
883 | break; | |
884 | ||
885 | default: | |
886 | as_warn (_("badly formed .dim directive ignored")); | |
887 | /* intentional fallthrough */ | |
888 | case '\n': | |
889 | case ';': | |
890 | dim_index = DIMNUM; | |
891 | break; | |
892 | } | |
893 | } | |
894 | ||
895 | demand_empty_rest_of_line (); | |
896 | } | |
897 | ||
898 | static void | |
899 | obj_coff_line (ignore) | |
c4bf532f | 900 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
901 | { |
902 | int this_base; | |
903 | ||
904 | if (def_symbol_in_progress == NULL) | |
905 | { | |
906 | /* Probably stabs-style line? */ | |
907 | obj_coff_ln (0); | |
908 | return; | |
909 | } | |
910 | ||
911 | this_base = get_absolute_expression (); | |
912 | if (!strcmp (".bf", S_GET_NAME (def_symbol_in_progress))) | |
913 | coff_line_base = this_base; | |
914 | ||
915 | S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); | |
23dab925 | 916 | SA_SET_SYM_LNNO (def_symbol_in_progress, this_base); |
252b5132 RH |
917 | |
918 | demand_empty_rest_of_line (); | |
919 | ||
920 | #ifndef NO_LISTING | |
921 | if (strcmp (".bf", S_GET_NAME (def_symbol_in_progress)) == 0) | |
922 | { | |
923 | extern int listing; | |
924 | ||
925 | if (listing) | |
23dab925 | 926 | listing_source_line ((unsigned int) this_base); |
252b5132 RH |
927 | } |
928 | #endif | |
929 | } | |
930 | ||
931 | static void | |
932 | obj_coff_size (ignore) | |
c4bf532f | 933 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
934 | { |
935 | if (def_symbol_in_progress == NULL) | |
936 | { | |
937 | as_warn (_(".size pseudo-op used outside of .def/.endef ignored.")); | |
938 | demand_empty_rest_of_line (); | |
939 | return; | |
940 | } /* if not inside .def/.endef */ | |
941 | ||
942 | S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); | |
943 | SA_SET_SYM_SIZE (def_symbol_in_progress, get_absolute_expression ()); | |
944 | demand_empty_rest_of_line (); | |
945 | } | |
946 | ||
947 | static void | |
948 | obj_coff_scl (ignore) | |
c4bf532f | 949 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
950 | { |
951 | if (def_symbol_in_progress == NULL) | |
952 | { | |
953 | as_warn (_(".scl pseudo-op used outside of .def/.endef ignored.")); | |
954 | demand_empty_rest_of_line (); | |
955 | return; | |
956 | } /* if not inside .def/.endef */ | |
957 | ||
958 | S_SET_STORAGE_CLASS (def_symbol_in_progress, get_absolute_expression ()); | |
959 | demand_empty_rest_of_line (); | |
960 | } | |
961 | ||
962 | static void | |
963 | obj_coff_tag (ignore) | |
c4bf532f | 964 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
965 | { |
966 | char *symbol_name; | |
967 | char name_end; | |
968 | ||
969 | if (def_symbol_in_progress == NULL) | |
970 | { | |
971 | as_warn (_(".tag pseudo-op used outside of .def/.endef ignored.")); | |
972 | demand_empty_rest_of_line (); | |
973 | return; | |
974 | } | |
975 | ||
976 | S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); | |
977 | symbol_name = input_line_pointer; | |
978 | name_end = get_symbol_end (); | |
979 | ||
980 | #ifdef tc_canonicalize_symbol_name | |
981 | symbol_name = tc_canonicalize_symbol_name (symbol_name); | |
982 | #endif | |
983 | ||
984 | /* Assume that the symbol referred to by .tag is always defined. | |
985 | This was a bad assumption. I've added find_or_make. xoxorich. */ | |
986 | SA_SET_SYM_TAGNDX (def_symbol_in_progress, | |
987 | tag_find_or_make (symbol_name)); | |
988 | if (SA_GET_SYM_TAGNDX (def_symbol_in_progress) == 0L) | |
989 | { | |
990 | as_warn (_("tag not found for .tag %s"), symbol_name); | |
991 | } /* not defined */ | |
992 | ||
993 | SF_SET_TAGGED (def_symbol_in_progress); | |
994 | *input_line_pointer = name_end; | |
995 | ||
996 | demand_empty_rest_of_line (); | |
997 | } | |
998 | ||
999 | static void | |
1000 | obj_coff_type (ignore) | |
c4bf532f | 1001 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
1002 | { |
1003 | if (def_symbol_in_progress == NULL) | |
1004 | { | |
1005 | as_warn (_(".type pseudo-op used outside of .def/.endef ignored.")); | |
1006 | demand_empty_rest_of_line (); | |
1007 | return; | |
1008 | } /* if not inside .def/.endef */ | |
1009 | ||
1010 | S_SET_DATA_TYPE (def_symbol_in_progress, get_absolute_expression ()); | |
1011 | ||
1012 | if (ISFCN (S_GET_DATA_TYPE (def_symbol_in_progress)) && | |
1013 | S_GET_STORAGE_CLASS (def_symbol_in_progress) != C_TPDEF) | |
1014 | { | |
1015 | SF_SET_FUNCTION (def_symbol_in_progress); | |
1016 | } /* is a function */ | |
1017 | ||
1018 | demand_empty_rest_of_line (); | |
1019 | } | |
1020 | ||
1021 | static void | |
1022 | obj_coff_val (ignore) | |
c4bf532f | 1023 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
1024 | { |
1025 | if (def_symbol_in_progress == NULL) | |
1026 | { | |
1027 | as_warn (_(".val pseudo-op used outside of .def/.endef ignored.")); | |
1028 | demand_empty_rest_of_line (); | |
1029 | return; | |
1030 | } /* if not inside .def/.endef */ | |
1031 | ||
1032 | if (is_name_beginner (*input_line_pointer)) | |
1033 | { | |
1034 | char *symbol_name = input_line_pointer; | |
1035 | char name_end = get_symbol_end (); | |
1036 | ||
1037 | #ifdef tc_canonicalize_symbol_name | |
1038 | symbol_name = tc_canonicalize_symbol_name (symbol_name); | |
1039 | #endif | |
1040 | if (!strcmp (symbol_name, ".")) | |
1041 | { | |
49309057 | 1042 | symbol_set_frag (def_symbol_in_progress, frag_now); |
252b5132 RH |
1043 | S_SET_VALUE (def_symbol_in_progress, (valueT) frag_now_fix ()); |
1044 | /* If the .val is != from the .def (e.g. statics) */ | |
1045 | } | |
1046 | else if (strcmp (S_GET_NAME (def_symbol_in_progress), symbol_name)) | |
1047 | { | |
49309057 ILT |
1048 | expressionS exp; |
1049 | ||
1050 | exp.X_op = O_symbol; | |
1051 | exp.X_add_symbol = symbol_find_or_make (symbol_name); | |
1052 | exp.X_op_symbol = NULL; | |
1053 | exp.X_add_number = 0; | |
1054 | symbol_set_value_expression (def_symbol_in_progress, &exp); | |
252b5132 RH |
1055 | |
1056 | /* If the segment is undefined when the forward reference is | |
1057 | resolved, then copy the segment id from the forward | |
1058 | symbol. */ | |
1059 | SF_SET_GET_SEGMENT (def_symbol_in_progress); | |
0561a208 ILT |
1060 | |
1061 | /* FIXME: gcc can generate address expressions here in | |
1062 | unusual cases (search for "obscure" in sdbout.c). We | |
1063 | just ignore the offset here, thus generating incorrect | |
1064 | debugging information. We ignore the rest of the line | |
1065 | just below. */ | |
252b5132 | 1066 | } |
0561a208 ILT |
1067 | /* Otherwise, it is the name of a non debug symbol and its value |
1068 | will be calculated later. */ | |
252b5132 RH |
1069 | *input_line_pointer = name_end; |
1070 | } | |
1071 | else | |
1072 | { | |
1073 | S_SET_VALUE (def_symbol_in_progress, get_absolute_expression ()); | |
1074 | } /* if symbol based */ | |
1075 | ||
1076 | demand_empty_rest_of_line (); | |
1077 | } | |
1078 | ||
1079 | void | |
1080 | coff_obj_read_begin_hook () | |
1081 | { | |
1082 | /* These had better be the same. Usually 18 bytes. */ | |
1083 | #ifndef BFD_HEADERS | |
1084 | know (sizeof (SYMENT) == sizeof (AUXENT)); | |
1085 | know (SYMESZ == AUXESZ); | |
1086 | #endif | |
1087 | tag_init (); | |
1088 | } | |
1089 | ||
1090 | ||
1091 | symbolS *coff_last_function; | |
1092 | static symbolS *coff_last_bf; | |
1093 | ||
1094 | void | |
1095 | coff_frob_symbol (symp, punt) | |
1096 | symbolS *symp; | |
1097 | int *punt; | |
1098 | { | |
1099 | static symbolS *last_tagP; | |
1100 | static stack *block_stack; | |
1101 | static symbolS *set_end; | |
1102 | symbolS *next_set_end = NULL; | |
1103 | ||
1104 | if (symp == &abs_symbol) | |
1105 | { | |
1106 | *punt = 1; | |
1107 | return; | |
1108 | } | |
1109 | ||
1110 | if (current_lineno_sym) | |
1111 | coff_add_linesym ((symbolS *) 0); | |
1112 | ||
1113 | if (!block_stack) | |
1114 | block_stack = stack_init (512, sizeof (symbolS*)); | |
1115 | ||
1116 | if (S_IS_WEAK (symp)) | |
1117 | { | |
1118 | #ifdef TE_PE | |
1119 | S_SET_STORAGE_CLASS (symp, C_NT_WEAK); | |
1120 | #else | |
1121 | S_SET_STORAGE_CLASS (symp, C_WEAKEXT); | |
1122 | #endif | |
1123 | } | |
1124 | ||
1125 | if (!S_IS_DEFINED (symp) | |
1126 | && !S_IS_WEAK (symp) | |
1127 | && S_GET_STORAGE_CLASS (symp) != C_STAT) | |
1128 | S_SET_STORAGE_CLASS (symp, C_EXT); | |
1129 | ||
1130 | if (!SF_GET_DEBUG (symp)) | |
1131 | { | |
1132 | symbolS *real; | |
1133 | if (!SF_GET_LOCAL (symp) | |
1134 | && !SF_GET_STATICS (symp) | |
1135 | && (real = symbol_find_base (S_GET_NAME (symp), DO_NOT_STRIP)) | |
1136 | && real != symp) | |
1137 | { | |
1138 | c_symbol_merge (symp, real); | |
1139 | *punt = 1; | |
1140 | } | |
1141 | if (!S_IS_DEFINED (symp) && !SF_GET_LOCAL (symp)) | |
1142 | { | |
1143 | assert (S_GET_VALUE (symp) == 0); | |
1144 | S_SET_EXTERNAL (symp); | |
1145 | } | |
1146 | else if (S_GET_STORAGE_CLASS (symp) == C_NULL) | |
1147 | { | |
1148 | if (S_GET_SEGMENT (symp) == text_section | |
1149 | && symp != seg_info (text_section)->sym) | |
1150 | S_SET_STORAGE_CLASS (symp, C_LABEL); | |
1151 | else | |
1152 | S_SET_STORAGE_CLASS (symp, C_STAT); | |
1153 | } | |
1154 | if (SF_GET_PROCESS (symp)) | |
1155 | { | |
1156 | if (S_GET_STORAGE_CLASS (symp) == C_BLOCK) | |
1157 | { | |
1158 | if (!strcmp (S_GET_NAME (symp), ".bb")) | |
1159 | stack_push (block_stack, (char *) &symp); | |
1160 | else | |
1161 | { | |
1162 | symbolS *begin; | |
1163 | begin = *(symbolS **) stack_pop (block_stack); | |
1164 | if (begin == 0) | |
1165 | as_warn (_("mismatched .eb")); | |
1166 | else | |
1167 | next_set_end = begin; | |
1168 | } | |
1169 | } | |
1170 | if (coff_last_function == 0 && SF_GET_FUNCTION (symp)) | |
1171 | { | |
1172 | union internal_auxent *auxp; | |
1173 | coff_last_function = symp; | |
1174 | if (S_GET_NUMBER_AUXILIARY (symp) < 1) | |
1175 | S_SET_NUMBER_AUXILIARY (symp, 1); | |
0561a208 | 1176 | auxp = SYM_AUXENT (symp); |
252b5132 RH |
1177 | memset (auxp->x_sym.x_fcnary.x_ary.x_dimen, 0, |
1178 | sizeof (auxp->x_sym.x_fcnary.x_ary.x_dimen)); | |
1179 | } | |
1180 | if (S_GET_STORAGE_CLASS (symp) == C_EFCN) | |
1181 | { | |
1182 | if (coff_last_function == 0) | |
1183 | as_fatal (_("C_EFCN symbol out of scope")); | |
1184 | SA_SET_SYM_FSIZE (coff_last_function, | |
1185 | (long) (S_GET_VALUE (symp) | |
1186 | - S_GET_VALUE (coff_last_function))); | |
1187 | next_set_end = coff_last_function; | |
1188 | coff_last_function = 0; | |
1189 | } | |
1190 | } | |
1191 | if (S_IS_EXTERNAL (symp)) | |
1192 | S_SET_STORAGE_CLASS (symp, C_EXT); | |
1193 | else if (SF_GET_LOCAL (symp)) | |
1194 | *punt = 1; | |
1195 | ||
1196 | if (SF_GET_FUNCTION (symp)) | |
49309057 | 1197 | symbol_get_bfdsym (symp)->flags |= BSF_FUNCTION; |
252b5132 RH |
1198 | |
1199 | /* more ... */ | |
1200 | } | |
1201 | ||
8828d862 ILT |
1202 | /* Double check weak symbols. */ |
1203 | if (S_IS_WEAK (symp) && S_IS_COMMON (symp)) | |
1204 | as_bad (_("Symbol `%s' can not be both weak and common"), | |
1205 | S_GET_NAME (symp)); | |
1206 | ||
252b5132 RH |
1207 | if (SF_GET_TAG (symp)) |
1208 | last_tagP = symp; | |
1209 | else if (S_GET_STORAGE_CLASS (symp) == C_EOS) | |
1210 | next_set_end = last_tagP; | |
1211 | ||
1212 | #ifdef OBJ_XCOFF | |
1213 | /* This is pretty horrible, but we have to set *punt correctly in | |
1214 | order to call SA_SET_SYM_ENDNDX correctly. */ | |
809ffe0d | 1215 | if (! symbol_used_in_reloc_p (symp) |
49309057 | 1216 | && ((symbol_get_bfdsym (symp)->flags & BSF_SECTION_SYM) != 0 |
252b5132 | 1217 | || (! S_IS_EXTERNAL (symp) |
809ffe0d | 1218 | && ! symbol_get_tc (symp)->output |
252b5132 RH |
1219 | && S_GET_STORAGE_CLASS (symp) != C_FILE))) |
1220 | *punt = 1; | |
1221 | #endif | |
1222 | ||
1223 | if (set_end != (symbolS *) NULL | |
1224 | && ! *punt | |
49309057 | 1225 | && ((symbol_get_bfdsym (symp)->flags & BSF_NOT_AT_END) != 0 |
252b5132 RH |
1226 | || (S_IS_DEFINED (symp) |
1227 | && ! S_IS_COMMON (symp) | |
1228 | && (! S_IS_EXTERNAL (symp) || SF_GET_FUNCTION (symp))))) | |
1229 | { | |
1230 | SA_SET_SYM_ENDNDX (set_end, symp); | |
1231 | set_end = NULL; | |
1232 | } | |
1233 | ||
a04b544b ILT |
1234 | if (next_set_end != NULL) |
1235 | { | |
1236 | if (set_end != NULL) | |
1237 | as_warn ("Warning: internal error: forgetting to set endndx of %s", | |
1238 | S_GET_NAME (set_end)); | |
1239 | set_end = next_set_end; | |
1240 | } | |
252b5132 RH |
1241 | |
1242 | if (! *punt | |
1243 | && S_GET_STORAGE_CLASS (symp) == C_FCN | |
1244 | && strcmp (S_GET_NAME (symp), ".bf") == 0) | |
1245 | { | |
1246 | if (coff_last_bf != NULL) | |
1247 | SA_SET_SYM_ENDNDX (coff_last_bf, symp); | |
1248 | coff_last_bf = symp; | |
1249 | } | |
1250 | ||
49309057 | 1251 | if (coffsymbol (symbol_get_bfdsym (symp))->lineno) |
252b5132 RH |
1252 | { |
1253 | int i; | |
1254 | struct line_no *lptr; | |
1255 | alent *l; | |
1256 | ||
49309057 | 1257 | lptr = (struct line_no *) coffsymbol (symbol_get_bfdsym (symp))->lineno; |
252b5132 RH |
1258 | for (i = 0; lptr; lptr = lptr->next) |
1259 | i++; | |
49309057 | 1260 | lptr = (struct line_no *) coffsymbol (symbol_get_bfdsym (symp))->lineno; |
252b5132 RH |
1261 | |
1262 | /* We need i entries for line numbers, plus 1 for the first | |
1263 | entry which BFD will override, plus 1 for the last zero | |
1264 | entry (a marker for BFD). */ | |
1265 | l = (alent *) xmalloc ((i + 2) * sizeof (alent)); | |
49309057 | 1266 | coffsymbol (symbol_get_bfdsym (symp))->lineno = l; |
252b5132 RH |
1267 | l[i + 1].line_number = 0; |
1268 | l[i + 1].u.sym = NULL; | |
1269 | for (; i > 0; i--) | |
1270 | { | |
1271 | if (lptr->frag) | |
1272 | lptr->l.u.offset += lptr->frag->fr_address; | |
1273 | l[i] = lptr->l; | |
1274 | lptr = lptr->next; | |
1275 | } | |
1276 | } | |
1277 | } | |
1278 | ||
1279 | void | |
1280 | coff_adjust_section_syms (abfd, sec, x) | |
c4bf532f | 1281 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 | 1282 | asection *sec; |
c4bf532f | 1283 | PTR x ATTRIBUTE_UNUSED; |
252b5132 RH |
1284 | { |
1285 | symbolS *secsym; | |
1286 | segment_info_type *seginfo = seg_info (sec); | |
1287 | int nlnno, nrelocs = 0; | |
1288 | ||
1289 | /* RS/6000 gas creates a .debug section manually in ppc_frob_file in | |
1290 | tc-ppc.c. Do not get confused by it. */ | |
1291 | if (seginfo == NULL) | |
1292 | return; | |
1293 | ||
1294 | if (!strcmp (sec->name, ".text")) | |
1295 | nlnno = coff_n_line_nos; | |
1296 | else | |
1297 | nlnno = 0; | |
1298 | { | |
1299 | /* @@ Hope that none of the fixups expand to more than one reloc | |
1300 | entry... */ | |
1301 | fixS *fixp = seginfo->fix_root; | |
1302 | while (fixp) | |
1303 | { | |
1304 | if (! fixp->fx_done) | |
1305 | nrelocs++; | |
1306 | fixp = fixp->fx_next; | |
1307 | } | |
1308 | } | |
1309 | if (bfd_get_section_size_before_reloc (sec) == 0 | |
1310 | && nrelocs == 0 | |
1311 | && nlnno == 0 | |
1312 | && sec != text_section | |
1313 | && sec != data_section | |
1314 | && sec != bss_section) | |
1315 | return; | |
1316 | secsym = section_symbol (sec); | |
945a1a6b ILT |
1317 | /* This is an estimate; we'll plug in the real value using |
1318 | SET_SECTION_RELOCS later */ | |
252b5132 RH |
1319 | SA_SET_SCN_NRELOC (secsym, nrelocs); |
1320 | SA_SET_SCN_NLINNO (secsym, nlnno); | |
1321 | } | |
1322 | ||
1323 | void | |
1324 | coff_frob_file_after_relocs () | |
1325 | { | |
1326 | bfd_map_over_sections (stdoutput, coff_adjust_section_syms, (char*) 0); | |
1327 | } | |
1328 | ||
1329 | /* | |
1330 | * implement the .section pseudo op: | |
1331 | * .section name {, "flags"} | |
1332 | * ^ ^ | |
1333 | * | +--- optional flags: 'b' for bss | |
1334 | * | 'i' for info | |
1335 | * +-- section name 'l' for lib | |
1336 | * 'n' for noload | |
1337 | * 'o' for over | |
1338 | * 'w' for data | |
1339 | * 'd' (apparently m88k for data) | |
1340 | * 'x' for text | |
1341 | * 'r' for read-only data | |
2dcc60be | 1342 | * 's' for shared data (PE) |
252b5132 RH |
1343 | * But if the argument is not a quoted string, treat it as a |
1344 | * subsegment number. | |
1345 | */ | |
1346 | ||
1347 | void | |
1348 | obj_coff_section (ignore) | |
c4bf532f | 1349 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
1350 | { |
1351 | /* Strip out the section name */ | |
1352 | char *section_name; | |
1353 | char c; | |
1354 | char *name; | |
1355 | unsigned int exp; | |
1356 | flagword flags; | |
1357 | asection *sec; | |
1358 | ||
1359 | if (flag_mri) | |
1360 | { | |
1361 | char type; | |
1362 | ||
1363 | s_mri_sect (&type); | |
1364 | return; | |
1365 | } | |
1366 | ||
1367 | section_name = input_line_pointer; | |
1368 | c = get_symbol_end (); | |
1369 | ||
1370 | name = xmalloc (input_line_pointer - section_name + 1); | |
1371 | strcpy (name, section_name); | |
1372 | ||
1373 | *input_line_pointer = c; | |
1374 | ||
1375 | SKIP_WHITESPACE (); | |
1376 | ||
1377 | exp = 0; | |
5881e4aa | 1378 | flags = SEC_LOAD; |
252b5132 RH |
1379 | |
1380 | if (*input_line_pointer == ',') | |
1381 | { | |
1382 | ++input_line_pointer; | |
1383 | SKIP_WHITESPACE (); | |
1384 | if (*input_line_pointer != '"') | |
1385 | exp = get_absolute_expression (); | |
1386 | else | |
1387 | { | |
1388 | ++input_line_pointer; | |
1389 | while (*input_line_pointer != '"' | |
1390 | && ! is_end_of_line[(unsigned char) *input_line_pointer]) | |
1391 | { | |
1392 | switch (*input_line_pointer) | |
1393 | { | |
1394 | case 'b': flags |= SEC_ALLOC; flags &=~ SEC_LOAD; break; | |
1395 | case 'n': flags &=~ SEC_LOAD; break; | |
5881e4aa ILT |
1396 | case 'd': flags |= SEC_DATA | SEC_LOAD; /* fall through */ |
1397 | case 'w': flags &=~ SEC_READONLY; break; | |
1398 | case 'x': flags |= SEC_CODE | SEC_LOAD; break; | |
252b5132 | 1399 | case 'r': flags |= SEC_READONLY; break; |
2dcc60be | 1400 | case 's': flags |= SEC_SHARED; break; |
252b5132 RH |
1401 | |
1402 | case 'i': /* STYP_INFO */ | |
1403 | case 'l': /* STYP_LIB */ | |
1404 | case 'o': /* STYP_OVER */ | |
1405 | as_warn (_("unsupported section attribute '%c'"), | |
1406 | *input_line_pointer); | |
1407 | break; | |
1408 | ||
1409 | default: | |
1410 | as_warn(_("unknown section attribute '%c'"), | |
1411 | *input_line_pointer); | |
1412 | break; | |
1413 | } | |
1414 | ++input_line_pointer; | |
1415 | } | |
1416 | if (*input_line_pointer == '"') | |
1417 | ++input_line_pointer; | |
1418 | } | |
1419 | } | |
1420 | ||
1421 | sec = subseg_new (name, (subsegT) exp); | |
1422 | ||
1423 | if (flags != SEC_NO_FLAGS) | |
1424 | { | |
1425 | flagword oldflags; | |
1426 | ||
1427 | oldflags = bfd_get_section_flags (stdoutput, sec); | |
1428 | oldflags &= SEC_LINK_ONCE | SEC_LINK_DUPLICATES; | |
1429 | flags |= oldflags; | |
1430 | ||
1431 | if (! bfd_set_section_flags (stdoutput, sec, flags)) | |
1432 | as_warn (_("error setting flags for \"%s\": %s"), | |
1433 | bfd_section_name (stdoutput, sec), | |
1434 | bfd_errmsg (bfd_get_error ())); | |
1435 | } | |
1436 | ||
1437 | demand_empty_rest_of_line (); | |
1438 | } | |
1439 | ||
1440 | void | |
1441 | coff_adjust_symtab () | |
1442 | { | |
1443 | if (symbol_rootP == NULL | |
1444 | || S_GET_STORAGE_CLASS (symbol_rootP) != C_FILE) | |
1445 | c_dot_file_symbol ("fake"); | |
1446 | } | |
1447 | ||
1448 | void | |
1449 | coff_frob_section (sec) | |
1450 | segT sec; | |
1451 | { | |
1452 | segT strsec; | |
1453 | char *p; | |
1454 | fragS *fragp; | |
1455 | bfd_vma size, n_entries, mask; | |
1456 | ||
1457 | /* The COFF back end in BFD requires that all section sizes be | |
1458 | rounded up to multiples of the corresponding section alignments. | |
1459 | Seems kinda silly to me, but that's the way it is. */ | |
1460 | size = bfd_get_section_size_before_reloc (sec); | |
1461 | mask = ((bfd_vma) 1 << (bfd_vma) sec->alignment_power) - 1; | |
1462 | if (size & mask) | |
1463 | { | |
1464 | size = (size + mask) & ~mask; | |
1465 | bfd_set_section_size (stdoutput, sec, size); | |
1466 | } | |
1467 | ||
1468 | /* If the section size is non-zero, the section symbol needs an aux | |
1469 | entry associated with it, indicating the size. We don't know | |
1470 | all the values yet; coff_frob_symbol will fill them in later. */ | |
1471 | if (size != 0 | |
1472 | || sec == text_section | |
1473 | || sec == data_section | |
1474 | || sec == bss_section) | |
1475 | { | |
1476 | symbolS *secsym = section_symbol (sec); | |
1477 | ||
1478 | S_SET_STORAGE_CLASS (secsym, C_STAT); | |
1479 | S_SET_NUMBER_AUXILIARY (secsym, 1); | |
1480 | SF_SET_STATICS (secsym); | |
1481 | SA_SET_SCN_SCNLEN (secsym, size); | |
1482 | } | |
1483 | ||
1484 | /* @@ these should be in a "stabs.h" file, or maybe as.h */ | |
1485 | #ifndef STAB_SECTION_NAME | |
1486 | #define STAB_SECTION_NAME ".stab" | |
1487 | #endif | |
1488 | #ifndef STAB_STRING_SECTION_NAME | |
1489 | #define STAB_STRING_SECTION_NAME ".stabstr" | |
1490 | #endif | |
1491 | if (strcmp (STAB_STRING_SECTION_NAME, sec->name)) | |
1492 | return; | |
1493 | ||
1494 | strsec = sec; | |
1495 | sec = subseg_get (STAB_SECTION_NAME, 0); | |
1496 | /* size is already rounded up, since other section will be listed first */ | |
1497 | size = bfd_get_section_size_before_reloc (strsec); | |
1498 | ||
1499 | n_entries = bfd_get_section_size_before_reloc (sec) / 12 - 1; | |
1500 | ||
1501 | /* Find first non-empty frag. It should be large enough. */ | |
1502 | fragp = seg_info (sec)->frchainP->frch_root; | |
1503 | while (fragp && fragp->fr_fix == 0) | |
1504 | fragp = fragp->fr_next; | |
1505 | assert (fragp != 0 && fragp->fr_fix >= 12); | |
1506 | ||
1507 | /* Store the values. */ | |
1508 | p = fragp->fr_literal; | |
1509 | bfd_h_put_16 (stdoutput, n_entries, (bfd_byte *) p + 6); | |
1510 | bfd_h_put_32 (stdoutput, size, (bfd_byte *) p + 8); | |
1511 | } | |
1512 | ||
1513 | void | |
1514 | obj_coff_init_stab_section (seg) | |
1515 | segT seg; | |
1516 | { | |
1517 | char *file; | |
1518 | char *p; | |
1519 | char *stabstr_name; | |
1520 | unsigned int stroff; | |
1521 | ||
1522 | /* Make space for this first symbol. */ | |
1523 | p = frag_more (12); | |
1524 | /* Zero it out. */ | |
1525 | memset (p, 0, 12); | |
1526 | as_where (&file, (unsigned int *) NULL); | |
1527 | stabstr_name = (char *) alloca (strlen (seg->name) + 4); | |
1528 | strcpy (stabstr_name, seg->name); | |
1529 | strcat (stabstr_name, "str"); | |
1530 | stroff = get_stab_string_offset (file, stabstr_name); | |
1531 | know (stroff == 1); | |
1532 | md_number_to_chars (p, stroff, 4); | |
1533 | } | |
1534 | ||
1535 | #ifdef DEBUG | |
1536 | /* for debugging */ | |
1537 | const char * | |
1538 | s_get_name (s) | |
1539 | symbolS *s; | |
1540 | { | |
1541 | return ((s == NULL) ? "(NULL)" : S_GET_NAME (s)); | |
1542 | } | |
1543 | ||
1544 | void | |
1545 | symbol_dump () | |
1546 | { | |
1547 | symbolS *symbolP; | |
1548 | ||
1549 | for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next (symbolP)) | |
1550 | { | |
1551 | printf(_("0x%lx: \"%s\" type = %ld, class = %d, segment = %d\n"), | |
1552 | (unsigned long) symbolP, | |
1553 | S_GET_NAME(symbolP), | |
1554 | (long) S_GET_DATA_TYPE(symbolP), | |
1555 | S_GET_STORAGE_CLASS(symbolP), | |
1556 | (int) S_GET_SEGMENT(symbolP)); | |
1557 | } | |
1558 | } | |
1559 | ||
1560 | #endif /* DEBUG */ | |
1561 | ||
1562 | #else /* not BFD_ASSEMBLER */ | |
1563 | ||
1564 | #include "frags.h" | |
1565 | /* This is needed because we include internal bfd things. */ | |
1566 | #include <time.h> | |
1567 | ||
1568 | #include "libbfd.h" | |
1569 | #include "libcoff.h" | |
1570 | ||
1571 | #ifdef TE_PE | |
1572 | #include "coff/pe.h" | |
1573 | #endif | |
1574 | ||
1575 | /* The NOP_OPCODE is for the alignment fill value. Fill with nop so | |
1576 | that we can stick sections together without causing trouble. */ | |
1577 | #ifndef NOP_OPCODE | |
1578 | #define NOP_OPCODE 0x00 | |
1579 | #endif | |
1580 | ||
1581 | /* The zeroes if symbol name is longer than 8 chars */ | |
1582 | #define S_SET_ZEROES(s,v) ((s)->sy_symbol.ost_entry.n_zeroes = (v)) | |
1583 | ||
1584 | #define MIN(a,b) ((a) < (b)? (a) : (b)) | |
a04b544b ILT |
1585 | |
1586 | /* This vector is used to turn a gas internal segment number into a | |
1587 | section number suitable for insertion into a coff symbol table. | |
1588 | This must correspond to seg_info_off_by_4. */ | |
252b5132 RH |
1589 | |
1590 | const short seg_N_TYPE[] = | |
1591 | { /* in: segT out: N_TYPE bits */ | |
1592 | C_ABS_SECTION, | |
1593 | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, | |
1594 | 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, | |
1595 | 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, | |
1596 | 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, | |
1597 | C_UNDEF_SECTION, /* SEG_UNKNOWN */ | |
1598 | C_UNDEF_SECTION, /* SEG_GOOF */ | |
1599 | C_UNDEF_SECTION, /* SEG_EXPR */ | |
1600 | C_DEBUG_SECTION, /* SEG_DEBUG */ | |
1601 | C_NTV_SECTION, /* SEG_NTV */ | |
1602 | C_PTV_SECTION, /* SEG_PTV */ | |
1603 | C_REGISTER_SECTION, /* SEG_REGISTER */ | |
1604 | }; | |
1605 | ||
1606 | int function_lineoff = -1; /* Offset in line#s where the last function | |
1607 | started (the odd entry for line #0) */ | |
1608 | ||
1609 | /* structure used to keep the filenames which | |
1610 | are too long around so that we can stick them | |
1611 | into the string table */ | |
1612 | struct filename_list | |
1613 | { | |
1614 | char *filename; | |
1615 | struct filename_list *next; | |
1616 | }; | |
1617 | ||
1618 | static struct filename_list *filename_list_head; | |
1619 | static struct filename_list *filename_list_tail; | |
1620 | ||
1621 | static symbolS *last_line_symbol; | |
1622 | ||
1623 | /* Add 4 to the real value to get the index and compensate the | |
1624 | negatives. This vector is used by S_GET_SEGMENT to turn a coff | |
1625 | section number into a segment number | |
1626 | */ | |
1627 | static symbolS *previous_file_symbol; | |
1628 | void c_symbol_merge (); | |
1629 | static int line_base; | |
1630 | ||
1631 | symbolS *c_section_symbol (); | |
1632 | bfd *abfd; | |
1633 | ||
1634 | static void fixup_segment PARAMS ((segment_info_type *segP, | |
1635 | segT this_segment_type)); | |
1636 | ||
1637 | ||
1638 | static void fixup_mdeps PARAMS ((fragS *, | |
1639 | object_headers *, | |
1640 | segT)); | |
1641 | ||
1642 | ||
1643 | static void fill_section PARAMS ((bfd * abfd, | |
1644 | object_headers *, | |
1645 | unsigned long *)); | |
1646 | ||
1647 | ||
1648 | static int c_line_new PARAMS ((symbolS * symbol, long paddr, | |
1649 | int line_number, | |
1650 | fragS * frag)); | |
1651 | ||
1652 | ||
1653 | static void w_symbols PARAMS ((bfd * abfd, char *where, | |
1654 | symbolS * symbol_rootP)); | |
1655 | ||
1656 | static void adjust_stab_section PARAMS ((bfd *abfd, segT seg)); | |
1657 | ||
1658 | static void obj_coff_lcomm PARAMS ((int)); | |
1659 | static void obj_coff_text PARAMS ((int)); | |
1660 | static void obj_coff_data PARAMS ((int)); | |
252b5132 RH |
1661 | void obj_coff_section PARAMS ((int)); |
1662 | ||
a04b544b | 1663 | /* When not using BFD_ASSEMBLER, we permit up to 40 sections. |
252b5132 | 1664 | |
a04b544b ILT |
1665 | This array maps a COFF section number into a gas section number. |
1666 | Because COFF uses negative section numbers, you must add 4 to the | |
1667 | COFF section number when indexing into this array; this is done via | |
1668 | the SEG_INFO_FROM_SECTION_NUMBER macro. This must correspond to | |
1669 | seg_N_TYPE. */ | |
252b5132 | 1670 | |
a04b544b | 1671 | static const segT seg_info_off_by_4[] = |
252b5132 | 1672 | { |
a04b544b ILT |
1673 | SEG_PTV, |
1674 | SEG_NTV, | |
1675 | SEG_DEBUG, | |
1676 | SEG_ABSOLUTE, | |
1677 | SEG_UNKNOWN, | |
1678 | SEG_E0, SEG_E1, SEG_E2, SEG_E3, SEG_E4, | |
1679 | SEG_E5, SEG_E6, SEG_E7, SEG_E8, SEG_E9, | |
1680 | SEG_E10, SEG_E11, SEG_E12, SEG_E13, SEG_E14, | |
1681 | SEG_E15, SEG_E16, SEG_E17, SEG_E18, SEG_E19, | |
1682 | SEG_E20, SEG_E21, SEG_E22, SEG_E23, SEG_E24, | |
1683 | SEG_E25, SEG_E26, SEG_E27, SEG_E28, SEG_E29, | |
1684 | SEG_E30, SEG_E31, SEG_E32, SEG_E33, SEG_E34, | |
1685 | SEG_E35, SEG_E36, SEG_E37, SEG_E38, SEG_E39, | |
1686 | (segT) 40, | |
1687 | (segT) 41, | |
1688 | (segT) 42, | |
1689 | (segT) 43, | |
1690 | (segT) 44, | |
1691 | (segT) 45, | |
1692 | (segT) 0, | |
1693 | (segT) 0, | |
1694 | (segT) 0, | |
1695 | SEG_REGISTER | |
252b5132 RH |
1696 | }; |
1697 | ||
252b5132 RH |
1698 | #define SEG_INFO_FROM_SECTION_NUMBER(x) (seg_info_off_by_4[(x)+4]) |
1699 | ||
1700 | static relax_addressT | |
1701 | relax_align (address, alignment) | |
1702 | relax_addressT address; | |
1703 | long alignment; | |
1704 | { | |
1705 | relax_addressT mask; | |
1706 | relax_addressT new_address; | |
1707 | ||
1708 | mask = ~((~0) << alignment); | |
1709 | new_address = (address + mask) & (~mask); | |
1710 | return (new_address - address); | |
1711 | } | |
1712 | ||
1713 | ||
1714 | segT | |
1715 | s_get_segment (x) | |
1716 | symbolS * x; | |
1717 | { | |
a04b544b | 1718 | return SEG_INFO_FROM_SECTION_NUMBER (x->sy_symbol.ost_entry.n_scnum); |
252b5132 RH |
1719 | } |
1720 | ||
1721 | /* calculate the size of the frag chain and fill in the section header | |
1722 | to contain all of it, also fill in the addr of the sections */ | |
1723 | static unsigned int | |
1724 | size_section (abfd, idx) | |
a04b544b | 1725 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
1726 | unsigned int idx; |
1727 | { | |
1728 | ||
1729 | unsigned int size = 0; | |
1730 | fragS *frag = segment_info[idx].frchainP->frch_root; | |
1731 | while (frag) | |
1732 | { | |
1733 | size = frag->fr_address; | |
1734 | if (frag->fr_address != size) | |
1735 | { | |
1736 | fprintf (stderr, _("Out of step\n")); | |
1737 | size = frag->fr_address; | |
1738 | } | |
1739 | ||
1740 | switch (frag->fr_type) | |
1741 | { | |
1742 | #ifdef TC_COFF_SIZEMACHDEP | |
1743 | case rs_machine_dependent: | |
1744 | size += TC_COFF_SIZEMACHDEP (frag); | |
1745 | break; | |
1746 | #endif | |
1747 | case rs_space: | |
1748 | assert (frag->fr_symbol == 0); | |
1749 | case rs_fill: | |
1750 | case rs_org: | |
1751 | size += frag->fr_fix; | |
1752 | size += frag->fr_offset * frag->fr_var; | |
1753 | break; | |
1754 | case rs_align: | |
1755 | case rs_align_code: | |
1756 | { | |
1757 | addressT off; | |
1758 | ||
1759 | size += frag->fr_fix; | |
1760 | off = relax_align (size, frag->fr_offset); | |
1761 | if (frag->fr_subtype != 0 && off > frag->fr_subtype) | |
1762 | off = 0; | |
1763 | size += off; | |
1764 | } | |
1765 | break; | |
1766 | default: | |
1767 | BAD_CASE (frag->fr_type); | |
1768 | break; | |
1769 | } | |
1770 | frag = frag->fr_next; | |
1771 | } | |
1772 | segment_info[idx].scnhdr.s_size = size; | |
1773 | return size; | |
1774 | } | |
1775 | ||
1776 | ||
1777 | static unsigned int | |
1778 | count_entries_in_chain (idx) | |
1779 | unsigned int idx; | |
1780 | { | |
1781 | unsigned int nrelocs; | |
1782 | fixS *fixup_ptr; | |
1783 | ||
1784 | /* Count the relocations */ | |
1785 | fixup_ptr = segment_info[idx].fix_root; | |
1786 | nrelocs = 0; | |
1787 | while (fixup_ptr != (fixS *) NULL) | |
1788 | { | |
1789 | if (fixup_ptr->fx_done == 0 && TC_COUNT_RELOC (fixup_ptr)) | |
1790 | { | |
1791 | #ifdef TC_A29K | |
1792 | if (fixup_ptr->fx_r_type == RELOC_CONSTH) | |
1793 | nrelocs += 2; | |
1794 | else | |
1795 | nrelocs++; | |
1796 | #else | |
1797 | nrelocs++; | |
1798 | #endif | |
1799 | } | |
1800 | ||
1801 | fixup_ptr = fixup_ptr->fx_next; | |
1802 | } | |
1803 | return nrelocs; | |
1804 | } | |
1805 | ||
1806 | #ifdef TE_AUX | |
1807 | ||
1808 | static int compare_external_relocs PARAMS ((const PTR, const PTR)); | |
1809 | ||
1810 | /* AUX's ld expects relocations to be sorted */ | |
1811 | static int | |
1812 | compare_external_relocs (x, y) | |
1813 | const PTR x; | |
1814 | const PTR y; | |
1815 | { | |
1816 | struct external_reloc *a = (struct external_reloc *) x; | |
1817 | struct external_reloc *b = (struct external_reloc *) y; | |
1818 | bfd_vma aadr = bfd_getb32 (a->r_vaddr); | |
1819 | bfd_vma badr = bfd_getb32 (b->r_vaddr); | |
1820 | return (aadr < badr ? -1 : badr < aadr ? 1 : 0); | |
1821 | } | |
1822 | ||
1823 | #endif | |
1824 | ||
1825 | /* output all the relocations for a section */ | |
1826 | void | |
1827 | do_relocs_for (abfd, h, file_cursor) | |
1828 | bfd * abfd; | |
1829 | object_headers * h; | |
1830 | unsigned long *file_cursor; | |
1831 | { | |
1832 | unsigned int nrelocs; | |
1833 | unsigned int idx; | |
1834 | unsigned long reloc_start = *file_cursor; | |
1835 | ||
1836 | for (idx = SEG_E0; idx < SEG_LAST; idx++) | |
1837 | { | |
1838 | if (segment_info[idx].scnhdr.s_name[0]) | |
1839 | { | |
1840 | struct external_reloc *ext_ptr; | |
1841 | struct external_reloc *external_reloc_vec; | |
1842 | unsigned int external_reloc_size; | |
1843 | unsigned int base = segment_info[idx].scnhdr.s_paddr; | |
1844 | fixS *fix_ptr = segment_info[idx].fix_root; | |
1845 | nrelocs = count_entries_in_chain (idx); | |
1846 | ||
1847 | if (nrelocs) | |
1848 | /* Bypass this stuff if no relocs. This also incidentally | |
1849 | avoids a SCO bug, where free(malloc(0)) tends to crash. */ | |
1850 | { | |
1851 | external_reloc_size = nrelocs * RELSZ; | |
1852 | external_reloc_vec = | |
1853 | (struct external_reloc *) malloc (external_reloc_size); | |
1854 | ||
1855 | ext_ptr = external_reloc_vec; | |
1856 | ||
1857 | /* Fill in the internal coff style reloc struct from the | |
1858 | internal fix list. */ | |
1859 | while (fix_ptr) | |
1860 | { | |
1861 | struct internal_reloc intr; | |
1862 | ||
1863 | /* Only output some of the relocations */ | |
1864 | if (fix_ptr->fx_done == 0 && TC_COUNT_RELOC (fix_ptr)) | |
1865 | { | |
1866 | #ifdef TC_RELOC_MANGLE | |
1867 | TC_RELOC_MANGLE (&segment_info[idx], fix_ptr, &intr, | |
1868 | base); | |
1869 | ||
1870 | #else | |
1871 | symbolS *dot; | |
1872 | symbolS *symbol_ptr = fix_ptr->fx_addsy; | |
1873 | ||
1874 | intr.r_type = TC_COFF_FIX2RTYPE (fix_ptr); | |
1875 | intr.r_vaddr = | |
1876 | base + fix_ptr->fx_frag->fr_address + fix_ptr->fx_where; | |
1877 | ||
1878 | #ifdef TC_KEEP_FX_OFFSET | |
1879 | intr.r_offset = fix_ptr->fx_offset; | |
1880 | #else | |
1881 | intr.r_offset = 0; | |
1882 | #endif | |
1883 | ||
1884 | while (symbol_ptr->sy_value.X_op == O_symbol | |
1885 | && (! S_IS_DEFINED (symbol_ptr) | |
1886 | || S_IS_COMMON (symbol_ptr))) | |
1887 | { | |
1888 | symbolS *n; | |
1889 | ||
1890 | /* We must avoid looping, as that can occur | |
1891 | with a badly written program. */ | |
1892 | n = symbol_ptr->sy_value.X_add_symbol; | |
1893 | if (n == symbol_ptr) | |
1894 | break; | |
1895 | symbol_ptr = n; | |
1896 | } | |
1897 | ||
1898 | /* Turn the segment of the symbol into an offset. */ | |
1899 | if (symbol_ptr) | |
1900 | { | |
1901 | resolve_symbol_value (symbol_ptr, 1); | |
1902 | if (! symbol_ptr->sy_resolved) | |
1903 | { | |
1904 | char *file; | |
1905 | unsigned int line; | |
1906 | ||
1907 | if (expr_symbol_where (symbol_ptr, &file, &line)) | |
1908 | as_bad_where (file, line, | |
1909 | _("unresolved relocation")); | |
1910 | else | |
1911 | as_bad (_("bad relocation: symbol `%s' not in symbol table"), | |
1912 | S_GET_NAME (symbol_ptr)); | |
1913 | } | |
1914 | dot = segment_info[S_GET_SEGMENT (symbol_ptr)].dot; | |
1915 | if (dot) | |
1916 | { | |
1917 | intr.r_symndx = dot->sy_number; | |
1918 | } | |
1919 | else | |
1920 | { | |
1921 | intr.r_symndx = symbol_ptr->sy_number; | |
1922 | } | |
1923 | ||
1924 | } | |
1925 | else | |
1926 | { | |
1927 | intr.r_symndx = -1; | |
1928 | } | |
1929 | #endif | |
1930 | ||
1931 | (void) bfd_coff_swap_reloc_out (abfd, &intr, ext_ptr); | |
1932 | ext_ptr++; | |
1933 | ||
1934 | #if defined(TC_A29K) | |
1935 | ||
1936 | /* The 29k has a special kludge for the high 16 bit | |
1937 | reloc. Two relocations are emited, R_IHIHALF, | |
1938 | and R_IHCONST. The second one doesn't contain a | |
1939 | symbol, but uses the value for offset. */ | |
1940 | ||
1941 | if (intr.r_type == R_IHIHALF) | |
1942 | { | |
1943 | /* now emit the second bit */ | |
1944 | intr.r_type = R_IHCONST; | |
1945 | intr.r_symndx = fix_ptr->fx_addnumber; | |
1946 | (void) bfd_coff_swap_reloc_out (abfd, &intr, ext_ptr); | |
1947 | ext_ptr++; | |
1948 | } | |
1949 | #endif | |
1950 | } | |
1951 | ||
1952 | fix_ptr = fix_ptr->fx_next; | |
1953 | } | |
1954 | ||
1955 | #ifdef TE_AUX | |
1956 | /* Sort the reloc table */ | |
1957 | qsort ((PTR) external_reloc_vec, nrelocs, | |
1958 | sizeof (struct external_reloc), compare_external_relocs); | |
1959 | #endif | |
1960 | ||
1961 | /* Write out the reloc table */ | |
1962 | bfd_write ((PTR) external_reloc_vec, 1, external_reloc_size, | |
1963 | abfd); | |
1964 | free (external_reloc_vec); | |
1965 | ||
1966 | /* Fill in section header info. */ | |
1967 | segment_info[idx].scnhdr.s_relptr = *file_cursor; | |
1968 | *file_cursor += external_reloc_size; | |
1969 | segment_info[idx].scnhdr.s_nreloc = nrelocs; | |
1970 | } | |
1971 | else | |
1972 | { | |
1973 | /* No relocs */ | |
1974 | segment_info[idx].scnhdr.s_relptr = 0; | |
1975 | } | |
1976 | } | |
1977 | } | |
1978 | /* Set relocation_size field in file headers */ | |
1979 | H_SET_RELOCATION_SIZE (h, *file_cursor - reloc_start, 0); | |
1980 | } | |
1981 | ||
1982 | ||
1983 | /* run through a frag chain and write out the data to go with it, fill | |
1984 | in the scnhdrs with the info on the file postions | |
1985 | */ | |
1986 | static void | |
1987 | fill_section (abfd, h, file_cursor) | |
1988 | bfd * abfd; | |
a04b544b | 1989 | object_headers *h ATTRIBUTE_UNUSED; |
252b5132 RH |
1990 | unsigned long *file_cursor; |
1991 | { | |
1992 | ||
1993 | unsigned int i; | |
1994 | unsigned int paddr = 0; | |
1995 | ||
1996 | for (i = SEG_E0; i < SEG_UNKNOWN; i++) | |
1997 | { | |
1998 | unsigned int offset = 0; | |
1999 | struct internal_scnhdr *s = &(segment_info[i].scnhdr); | |
2000 | ||
2001 | PROGRESS (1); | |
2002 | ||
2003 | if (s->s_name[0]) | |
2004 | { | |
2005 | fragS *frag = segment_info[i].frchainP->frch_root; | |
2006 | char *buffer; | |
2007 | ||
2008 | if (s->s_size == 0) | |
2009 | s->s_scnptr = 0; | |
2010 | else | |
2011 | { | |
2012 | buffer = xmalloc (s->s_size); | |
2013 | s->s_scnptr = *file_cursor; | |
2014 | } | |
2015 | know (s->s_paddr == paddr); | |
2016 | ||
2017 | if (strcmp (s->s_name, ".text") == 0) | |
2018 | s->s_flags |= STYP_TEXT; | |
2019 | else if (strcmp (s->s_name, ".data") == 0) | |
2020 | s->s_flags |= STYP_DATA; | |
2021 | else if (strcmp (s->s_name, ".bss") == 0) | |
2022 | { | |
2023 | s->s_scnptr = 0; | |
2024 | s->s_flags |= STYP_BSS; | |
2025 | ||
2026 | /* @@ Should make the i386 and a29k coff targets define | |
2027 | COFF_NOLOAD_PROBLEM, and have only one test here. */ | |
2028 | #ifndef TC_I386 | |
2029 | #ifndef TC_A29K | |
2030 | #ifndef COFF_NOLOAD_PROBLEM | |
2031 | /* Apparently the SVR3 linker (and exec syscall) and UDI | |
2032 | mondfe progrem are confused by noload sections. */ | |
2033 | s->s_flags |= STYP_NOLOAD; | |
2034 | #endif | |
2035 | #endif | |
2036 | #endif | |
2037 | } | |
2038 | else if (strcmp (s->s_name, ".lit") == 0) | |
2039 | s->s_flags = STYP_LIT | STYP_TEXT; | |
2040 | else if (strcmp (s->s_name, ".init") == 0) | |
2041 | s->s_flags |= STYP_TEXT; | |
2042 | else if (strcmp (s->s_name, ".fini") == 0) | |
2043 | s->s_flags |= STYP_TEXT; | |
2044 | else if (strncmp (s->s_name, ".comment", 8) == 0) | |
2045 | s->s_flags |= STYP_INFO; | |
2046 | ||
2047 | while (frag) | |
2048 | { | |
2049 | unsigned int fill_size; | |
2050 | switch (frag->fr_type) | |
2051 | { | |
2052 | case rs_machine_dependent: | |
2053 | if (frag->fr_fix) | |
2054 | { | |
2055 | memcpy (buffer + frag->fr_address, | |
2056 | frag->fr_literal, | |
2057 | (unsigned int) frag->fr_fix); | |
2058 | offset += frag->fr_fix; | |
2059 | } | |
2060 | ||
2061 | break; | |
2062 | case rs_space: | |
2063 | assert (frag->fr_symbol == 0); | |
2064 | case rs_fill: | |
2065 | case rs_align: | |
2066 | case rs_align_code: | |
2067 | case rs_org: | |
2068 | if (frag->fr_fix) | |
2069 | { | |
2070 | memcpy (buffer + frag->fr_address, | |
2071 | frag->fr_literal, | |
2072 | (unsigned int) frag->fr_fix); | |
2073 | offset += frag->fr_fix; | |
2074 | } | |
2075 | ||
2076 | fill_size = frag->fr_var; | |
2077 | if (fill_size && frag->fr_offset > 0) | |
2078 | { | |
2079 | unsigned int count; | |
2080 | unsigned int off = frag->fr_fix; | |
2081 | for (count = frag->fr_offset; count; count--) | |
2082 | { | |
2083 | if (fill_size + frag->fr_address + off <= s->s_size) | |
2084 | { | |
2085 | memcpy (buffer + frag->fr_address + off, | |
2086 | frag->fr_literal + frag->fr_fix, | |
2087 | fill_size); | |
2088 | off += fill_size; | |
2089 | offset += fill_size; | |
2090 | } | |
2091 | } | |
2092 | } | |
2093 | break; | |
2094 | case rs_broken_word: | |
2095 | break; | |
2096 | default: | |
2097 | abort (); | |
2098 | } | |
2099 | frag = frag->fr_next; | |
2100 | } | |
2101 | ||
2102 | if (s->s_size != 0) | |
2103 | { | |
2104 | if (s->s_scnptr != 0) | |
2105 | { | |
2106 | bfd_write (buffer, s->s_size, 1, abfd); | |
2107 | *file_cursor += s->s_size; | |
2108 | } | |
2109 | free (buffer); | |
2110 | } | |
2111 | paddr += s->s_size; | |
2112 | } | |
2113 | } | |
2114 | } | |
2115 | ||
2116 | /* Coff file generation & utilities */ | |
2117 | ||
2118 | static void | |
2119 | coff_header_append (abfd, h) | |
2120 | bfd * abfd; | |
2121 | object_headers * h; | |
2122 | { | |
2123 | unsigned int i; | |
2124 | char buffer[1000]; | |
2125 | char buffero[1000]; | |
2126 | #ifdef COFF_LONG_SECTION_NAMES | |
2127 | unsigned long string_size = 4; | |
2128 | #endif | |
2129 | ||
2130 | bfd_seek (abfd, 0, 0); | |
2131 | ||
2132 | #ifndef OBJ_COFF_OMIT_OPTIONAL_HEADER | |
2133 | H_SET_MAGIC_NUMBER (h, COFF_MAGIC); | |
2134 | H_SET_VERSION_STAMP (h, 0); | |
2135 | H_SET_ENTRY_POINT (h, 0); | |
2136 | H_SET_TEXT_START (h, segment_info[SEG_E0].frchainP->frch_root->fr_address); | |
2137 | H_SET_DATA_START (h, segment_info[SEG_E1].frchainP->frch_root->fr_address); | |
2138 | H_SET_SIZEOF_OPTIONAL_HEADER (h, bfd_coff_swap_aouthdr_out(abfd, &h->aouthdr, | |
2139 | buffero)); | |
2140 | #else /* defined (OBJ_COFF_OMIT_OPTIONAL_HEADER) */ | |
2141 | H_SET_SIZEOF_OPTIONAL_HEADER (h, 0); | |
2142 | #endif /* defined (OBJ_COFF_OMIT_OPTIONAL_HEADER) */ | |
2143 | ||
2144 | i = bfd_coff_swap_filehdr_out (abfd, &h->filehdr, buffer); | |
2145 | ||
2146 | bfd_write (buffer, i, 1, abfd); | |
2147 | bfd_write (buffero, H_GET_SIZEOF_OPTIONAL_HEADER (h), 1, abfd); | |
2148 | ||
2149 | for (i = SEG_E0; i < SEG_LAST; i++) | |
2150 | { | |
2151 | if (segment_info[i].scnhdr.s_name[0]) | |
2152 | { | |
2153 | unsigned int size; | |
2154 | ||
2155 | #ifdef COFF_LONG_SECTION_NAMES | |
2156 | /* Support long section names as found in PE. This code | |
2157 | must coordinate with that in write_object_file and | |
2158 | w_strings. */ | |
2159 | if (strlen (segment_info[i].name) > SCNNMLEN) | |
2160 | { | |
2161 | memset (segment_info[i].scnhdr.s_name, 0, SCNNMLEN); | |
2162 | sprintf (segment_info[i].scnhdr.s_name, "/%lu", string_size); | |
2163 | string_size += strlen (segment_info[i].name) + 1; | |
2164 | } | |
2165 | #endif | |
2166 | ||
2167 | size = bfd_coff_swap_scnhdr_out (abfd, | |
2168 | &(segment_info[i].scnhdr), | |
2169 | buffer); | |
2170 | if (size == 0) | |
2171 | as_bad (_("bfd_coff_swap_scnhdr_out failed")); | |
2172 | bfd_write (buffer, size, 1, abfd); | |
2173 | } | |
2174 | } | |
2175 | } | |
2176 | ||
2177 | ||
2178 | char * | |
2179 | symbol_to_chars (abfd, where, symbolP) | |
2180 | bfd * abfd; | |
2181 | char *where; | |
2182 | symbolS * symbolP; | |
2183 | { | |
2184 | unsigned int numaux = symbolP->sy_symbol.ost_entry.n_numaux; | |
2185 | unsigned int i; | |
2186 | valueT val; | |
2187 | ||
2188 | /* Turn any symbols with register attributes into abs symbols */ | |
2189 | if (S_GET_SEGMENT (symbolP) == reg_section) | |
2190 | { | |
2191 | S_SET_SEGMENT (symbolP, absolute_section); | |
2192 | } | |
2193 | /* At the same time, relocate all symbols to their output value */ | |
2194 | ||
2195 | #ifndef TE_PE | |
2196 | val = (segment_info[S_GET_SEGMENT (symbolP)].scnhdr.s_paddr | |
2197 | + S_GET_VALUE (symbolP)); | |
2198 | #else | |
2199 | val = S_GET_VALUE (symbolP); | |
2200 | #endif | |
2201 | ||
2202 | S_SET_VALUE (symbolP, val); | |
2203 | ||
2204 | symbolP->sy_symbol.ost_entry.n_value = val; | |
2205 | ||
2206 | where += bfd_coff_swap_sym_out (abfd, &symbolP->sy_symbol.ost_entry, | |
2207 | where); | |
2208 | ||
2209 | for (i = 0; i < numaux; i++) | |
2210 | { | |
2211 | where += bfd_coff_swap_aux_out (abfd, | |
2212 | &symbolP->sy_symbol.ost_auxent[i], | |
2213 | S_GET_DATA_TYPE (symbolP), | |
2214 | S_GET_STORAGE_CLASS (symbolP), | |
2215 | i, numaux, where); | |
2216 | } | |
2217 | return where; | |
2218 | ||
2219 | } | |
2220 | ||
2221 | void | |
2222 | coff_obj_symbol_new_hook (symbolP) | |
2223 | symbolS *symbolP; | |
2224 | { | |
2225 | char underscore = 0; /* Symbol has leading _ */ | |
2226 | ||
2227 | /* Effective symbol */ | |
2228 | /* Store the pointer in the offset. */ | |
2229 | S_SET_ZEROES (symbolP, 0L); | |
2230 | S_SET_DATA_TYPE (symbolP, T_NULL); | |
2231 | S_SET_STORAGE_CLASS (symbolP, 0); | |
2232 | S_SET_NUMBER_AUXILIARY (symbolP, 0); | |
2233 | /* Additional information */ | |
2234 | symbolP->sy_symbol.ost_flags = 0; | |
2235 | /* Auxiliary entries */ | |
2236 | memset ((char *) &symbolP->sy_symbol.ost_auxent[0], 0, AUXESZ); | |
2237 | ||
2238 | if (S_IS_STRING (symbolP)) | |
2239 | SF_SET_STRING (symbolP); | |
2240 | if (!underscore && S_IS_LOCAL (symbolP)) | |
2241 | SF_SET_LOCAL (symbolP); | |
2242 | } | |
2243 | ||
2244 | /* | |
2245 | * Handle .ln directives. | |
2246 | */ | |
2247 | ||
2248 | static void | |
2249 | obj_coff_ln (appline) | |
2250 | int appline; | |
2251 | { | |
2252 | int l; | |
2253 | ||
2254 | if (! appline && def_symbol_in_progress != NULL) | |
2255 | { | |
2256 | as_warn (_(".ln pseudo-op inside .def/.endef: ignored.")); | |
2257 | demand_empty_rest_of_line (); | |
2258 | return; | |
2259 | } /* wrong context */ | |
2260 | ||
2261 | l = get_absolute_expression (); | |
2262 | c_line_new (0, frag_now_fix (), l, frag_now); | |
2263 | ||
2264 | if (appline) | |
2265 | new_logical_line ((char *) NULL, l - 1); | |
2266 | ||
2267 | #ifndef NO_LISTING | |
2268 | { | |
2269 | extern int listing; | |
2270 | ||
2271 | if (listing) | |
2272 | { | |
2273 | if (! appline) | |
2274 | l += line_base - 1; | |
2275 | listing_source_line ((unsigned int) l); | |
2276 | } | |
2277 | ||
2278 | } | |
2279 | #endif | |
2280 | demand_empty_rest_of_line (); | |
2281 | } | |
2282 | ||
2283 | /* | |
2284 | * def() | |
2285 | * | |
2286 | * Handle .def directives. | |
2287 | * | |
2288 | * One might ask : why can't we symbol_new if the symbol does not | |
2289 | * already exist and fill it with debug information. Because of | |
2290 | * the C_EFCN special symbol. It would clobber the value of the | |
2291 | * function symbol before we have a chance to notice that it is | |
2292 | * a C_EFCN. And a second reason is that the code is more clear this | |
2293 | * way. (at least I think it is :-). | |
2294 | * | |
2295 | */ | |
2296 | ||
2297 | #define SKIP_SEMI_COLON() while (*input_line_pointer++ != ';') | |
2298 | #define SKIP_WHITESPACES() while (*input_line_pointer == ' ' || \ | |
2299 | *input_line_pointer == '\t') \ | |
2300 | input_line_pointer++; | |
2301 | ||
2302 | static void | |
2303 | obj_coff_def (what) | |
a04b544b | 2304 | int what ATTRIBUTE_UNUSED; |
252b5132 RH |
2305 | { |
2306 | char name_end; /* Char after the end of name */ | |
2307 | char *symbol_name; /* Name of the debug symbol */ | |
2308 | char *symbol_name_copy; /* Temporary copy of the name */ | |
2309 | unsigned int symbol_name_length; | |
2310 | ||
2311 | if (def_symbol_in_progress != NULL) | |
2312 | { | |
2313 | as_warn (_(".def pseudo-op used inside of .def/.endef: ignored.")); | |
2314 | demand_empty_rest_of_line (); | |
2315 | return; | |
2316 | } /* if not inside .def/.endef */ | |
2317 | ||
2318 | SKIP_WHITESPACES (); | |
2319 | ||
2320 | def_symbol_in_progress = (symbolS *) obstack_alloc (¬es, sizeof (*def_symbol_in_progress)); | |
2321 | memset (def_symbol_in_progress, 0, sizeof (*def_symbol_in_progress)); | |
2322 | ||
2323 | symbol_name = input_line_pointer; | |
2324 | name_end = get_symbol_end (); | |
2325 | symbol_name_length = strlen (symbol_name); | |
2326 | symbol_name_copy = xmalloc (symbol_name_length + 1); | |
2327 | strcpy (symbol_name_copy, symbol_name); | |
2328 | #ifdef tc_canonicalize_symbol_name | |
2329 | symbol_name_copy = tc_canonicalize_symbol_name (symbol_name_copy); | |
2330 | #endif | |
2331 | ||
2332 | /* Initialize the new symbol */ | |
2333 | #ifdef STRIP_UNDERSCORE | |
2334 | S_SET_NAME (def_symbol_in_progress, (*symbol_name_copy == '_' | |
2335 | ? symbol_name_copy + 1 | |
2336 | : symbol_name_copy)); | |
2337 | #else /* STRIP_UNDERSCORE */ | |
2338 | S_SET_NAME (def_symbol_in_progress, symbol_name_copy); | |
2339 | #endif /* STRIP_UNDERSCORE */ | |
2340 | /* free(symbol_name_copy); */ | |
2341 | def_symbol_in_progress->sy_name_offset = (unsigned long) ~0; | |
2342 | def_symbol_in_progress->sy_number = ~0; | |
2343 | def_symbol_in_progress->sy_frag = &zero_address_frag; | |
2344 | S_SET_VALUE (def_symbol_in_progress, 0); | |
2345 | ||
2346 | if (S_IS_STRING (def_symbol_in_progress)) | |
2347 | SF_SET_STRING (def_symbol_in_progress); | |
2348 | ||
2349 | *input_line_pointer = name_end; | |
2350 | ||
2351 | demand_empty_rest_of_line (); | |
2352 | } | |
2353 | ||
2354 | unsigned int dim_index; | |
2355 | ||
2356 | ||
2357 | static void | |
2358 | obj_coff_endef (ignore) | |
a04b544b | 2359 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2360 | { |
2361 | symbolS *symbolP = 0; | |
2362 | /* DIM BUG FIX sac@cygnus.com */ | |
2363 | dim_index = 0; | |
2364 | if (def_symbol_in_progress == NULL) | |
2365 | { | |
2366 | as_warn (_(".endef pseudo-op used outside of .def/.endef: ignored.")); | |
2367 | demand_empty_rest_of_line (); | |
2368 | return; | |
2369 | } /* if not inside .def/.endef */ | |
2370 | ||
2371 | /* Set the section number according to storage class. */ | |
2372 | switch (S_GET_STORAGE_CLASS (def_symbol_in_progress)) | |
2373 | { | |
2374 | case C_STRTAG: | |
2375 | case C_ENTAG: | |
2376 | case C_UNTAG: | |
2377 | SF_SET_TAG (def_symbol_in_progress); | |
2378 | /* intentional fallthrough */ | |
2379 | case C_FILE: | |
2380 | case C_TPDEF: | |
2381 | SF_SET_DEBUG (def_symbol_in_progress); | |
2382 | S_SET_SEGMENT (def_symbol_in_progress, SEG_DEBUG); | |
2383 | break; | |
2384 | ||
2385 | case C_EFCN: | |
2386 | SF_SET_LOCAL (def_symbol_in_progress); /* Do not emit this symbol. */ | |
2387 | /* intentional fallthrough */ | |
2388 | case C_BLOCK: | |
2389 | SF_SET_PROCESS (def_symbol_in_progress); /* Will need processing before writing */ | |
2390 | /* intentional fallthrough */ | |
2391 | case C_FCN: | |
2392 | S_SET_SEGMENT (def_symbol_in_progress, SEG_E0); | |
2393 | ||
2394 | if (strcmp (S_GET_NAME (def_symbol_in_progress), ".bf") == 0) | |
2395 | { /* .bf */ | |
2396 | if (function_lineoff < 0) | |
2397 | { | |
2398 | fprintf (stderr, _("`.bf' symbol without preceding function\n")); | |
2399 | } /* missing function symbol */ | |
2400 | SA_GET_SYM_LNNOPTR (last_line_symbol) = function_lineoff; | |
2401 | ||
2402 | SF_SET_PROCESS (last_line_symbol); | |
2403 | SF_SET_ADJ_LNNOPTR (last_line_symbol); | |
2404 | SF_SET_PROCESS (def_symbol_in_progress); | |
2405 | function_lineoff = -1; | |
2406 | } | |
2407 | /* Value is always set to . */ | |
2408 | def_symbol_in_progress->sy_frag = frag_now; | |
2409 | S_SET_VALUE (def_symbol_in_progress, (valueT) frag_now_fix ()); | |
2410 | break; | |
2411 | ||
2412 | #ifdef C_AUTOARG | |
2413 | case C_AUTOARG: | |
2414 | #endif /* C_AUTOARG */ | |
2415 | case C_AUTO: | |
2416 | case C_REG: | |
2417 | case C_MOS: | |
2418 | case C_MOE: | |
2419 | case C_MOU: | |
2420 | case C_ARG: | |
2421 | case C_REGPARM: | |
2422 | case C_FIELD: | |
2423 | case C_EOS: | |
2424 | SF_SET_DEBUG (def_symbol_in_progress); | |
2425 | S_SET_SEGMENT (def_symbol_in_progress, absolute_section); | |
2426 | break; | |
2427 | ||
2428 | case C_EXT: | |
2429 | case C_WEAKEXT: | |
2430 | #ifdef TE_PE | |
2431 | case C_NT_WEAK: | |
2432 | #endif | |
2433 | case C_STAT: | |
2434 | case C_LABEL: | |
2435 | /* Valid but set somewhere else (s_comm, s_lcomm, colon) */ | |
2436 | break; | |
2437 | ||
2438 | case C_USTATIC: | |
2439 | case C_EXTDEF: | |
2440 | case C_ULABEL: | |
2441 | as_warn (_("unexpected storage class %d"), S_GET_STORAGE_CLASS (def_symbol_in_progress)); | |
2442 | break; | |
2443 | } /* switch on storage class */ | |
2444 | ||
2445 | /* Now that we have built a debug symbol, try to find if we should | |
2446 | merge with an existing symbol or not. If a symbol is C_EFCN or | |
2447 | absolute_section or untagged SEG_DEBUG it never merges. We also | |
2448 | don't merge labels, which are in a different namespace, nor | |
2449 | symbols which have not yet been defined since they are typically | |
2450 | unique, nor do we merge tags with non-tags. */ | |
2451 | ||
2452 | /* Two cases for functions. Either debug followed by definition or | |
2453 | definition followed by debug. For definition first, we will | |
2454 | merge the debug symbol into the definition. For debug first, the | |
2455 | lineno entry MUST point to the definition function or else it | |
2456 | will point off into space when crawl_symbols() merges the debug | |
2457 | symbol into the real symbol. Therefor, let's presume the debug | |
2458 | symbol is a real function reference. */ | |
2459 | ||
2460 | /* FIXME-SOON If for some reason the definition label/symbol is | |
2461 | never seen, this will probably leave an undefined symbol at link | |
2462 | time. */ | |
2463 | ||
2464 | if (S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_EFCN | |
2465 | || S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_LABEL | |
2466 | || (S_GET_SEGMENT (def_symbol_in_progress) == SEG_DEBUG | |
2467 | && !SF_GET_TAG (def_symbol_in_progress)) | |
2468 | || S_GET_SEGMENT (def_symbol_in_progress) == absolute_section | |
2469 | || def_symbol_in_progress->sy_value.X_op != O_constant | |
2470 | || (symbolP = symbol_find_base (S_GET_NAME (def_symbol_in_progress), DO_NOT_STRIP)) == NULL | |
2471 | || (SF_GET_TAG (def_symbol_in_progress) != SF_GET_TAG (symbolP))) | |
2472 | { | |
2473 | symbol_append (def_symbol_in_progress, symbol_lastP, &symbol_rootP, | |
2474 | &symbol_lastP); | |
2475 | } | |
2476 | else | |
2477 | { | |
2478 | /* This symbol already exists, merge the newly created symbol | |
2479 | into the old one. This is not mandatory. The linker can | |
2480 | handle duplicate symbols correctly. But I guess that it save | |
2481 | a *lot* of space if the assembly file defines a lot of | |
2482 | symbols. [loic] */ | |
2483 | ||
2484 | /* The debug entry (def_symbol_in_progress) is merged into the | |
2485 | previous definition. */ | |
2486 | ||
2487 | c_symbol_merge (def_symbol_in_progress, symbolP); | |
2488 | /* FIXME-SOON Should *def_symbol_in_progress be free'd? xoxorich. */ | |
2489 | def_symbol_in_progress = symbolP; | |
2490 | ||
2491 | if (SF_GET_FUNCTION (def_symbol_in_progress) | |
2492 | || SF_GET_TAG (def_symbol_in_progress) | |
2493 | || S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_STAT) | |
2494 | { | |
2495 | /* For functions, and tags, and static symbols, the symbol | |
2496 | *must* be where the debug symbol appears. Move the | |
2497 | existing symbol to the current place. */ | |
2498 | /* If it already is at the end of the symbol list, do nothing */ | |
2499 | if (def_symbol_in_progress != symbol_lastP) | |
2500 | { | |
2501 | symbol_remove (def_symbol_in_progress, &symbol_rootP, | |
2502 | &symbol_lastP); | |
2503 | symbol_append (def_symbol_in_progress, symbol_lastP, | |
2504 | &symbol_rootP, &symbol_lastP); | |
2505 | } /* if not already in place */ | |
2506 | } /* if function */ | |
2507 | } /* normal or mergable */ | |
2508 | ||
2509 | if (SF_GET_TAG (def_symbol_in_progress)) | |
2510 | { | |
2511 | symbolS *oldtag; | |
2512 | ||
2513 | oldtag = symbol_find_base (S_GET_NAME (def_symbol_in_progress), | |
2514 | DO_NOT_STRIP); | |
2515 | if (oldtag == NULL || ! SF_GET_TAG (oldtag)) | |
2516 | tag_insert (S_GET_NAME (def_symbol_in_progress), | |
2517 | def_symbol_in_progress); | |
2518 | } | |
2519 | ||
2520 | if (SF_GET_FUNCTION (def_symbol_in_progress)) | |
2521 | { | |
2522 | know (sizeof (def_symbol_in_progress) <= sizeof (long)); | |
2523 | function_lineoff | |
2524 | = c_line_new (def_symbol_in_progress, 0, 0, &zero_address_frag); | |
2525 | ||
2526 | SF_SET_PROCESS (def_symbol_in_progress); | |
2527 | ||
2528 | if (symbolP == NULL) | |
2529 | { | |
2530 | /* That is, if this is the first time we've seen the | |
2531 | function... */ | |
2532 | symbol_table_insert (def_symbol_in_progress); | |
2533 | } /* definition follows debug */ | |
2534 | } /* Create the line number entry pointing to the function being defined */ | |
2535 | ||
2536 | def_symbol_in_progress = NULL; | |
2537 | demand_empty_rest_of_line (); | |
2538 | } | |
2539 | ||
2540 | static void | |
2541 | obj_coff_dim (ignore) | |
a04b544b | 2542 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2543 | { |
2544 | int dim_index; | |
2545 | ||
2546 | if (def_symbol_in_progress == NULL) | |
2547 | { | |
2548 | as_warn (_(".dim pseudo-op used outside of .def/.endef: ignored.")); | |
2549 | demand_empty_rest_of_line (); | |
2550 | return; | |
2551 | } /* if not inside .def/.endef */ | |
2552 | ||
2553 | S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); | |
2554 | ||
2555 | for (dim_index = 0; dim_index < DIMNUM; dim_index++) | |
2556 | { | |
2557 | SKIP_WHITESPACES (); | |
2558 | SA_SET_SYM_DIMEN (def_symbol_in_progress, dim_index, | |
2559 | get_absolute_expression ()); | |
2560 | ||
2561 | switch (*input_line_pointer) | |
2562 | { | |
2563 | case ',': | |
2564 | input_line_pointer++; | |
2565 | break; | |
2566 | ||
2567 | default: | |
2568 | as_warn (_("badly formed .dim directive ignored")); | |
2569 | /* intentional fallthrough */ | |
2570 | case '\n': | |
2571 | case ';': | |
2572 | dim_index = DIMNUM; | |
2573 | break; | |
2574 | } | |
2575 | } | |
2576 | ||
2577 | demand_empty_rest_of_line (); | |
2578 | } | |
2579 | ||
2580 | static void | |
2581 | obj_coff_line (ignore) | |
a04b544b | 2582 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2583 | { |
2584 | int this_base; | |
2585 | const char *name; | |
2586 | ||
2587 | if (def_symbol_in_progress == NULL) | |
2588 | { | |
2589 | obj_coff_ln (0); | |
2590 | return; | |
2591 | } | |
2592 | ||
2593 | name = S_GET_NAME (def_symbol_in_progress); | |
2594 | this_base = get_absolute_expression (); | |
2595 | ||
2596 | /* Only .bf symbols indicate the use of a new base line number; the | |
2597 | line numbers associated with .ef, .bb, .eb are relative to the | |
2598 | start of the containing function. */ | |
2599 | if (!strcmp (".bf", name)) | |
2600 | { | |
2601 | #if 0 /* XXX Can we ever have line numbers going backwards? */ | |
2602 | if (this_base > line_base) | |
2603 | #endif | |
2604 | { | |
2605 | line_base = this_base; | |
2606 | } | |
2607 | ||
2608 | #ifndef NO_LISTING | |
2609 | { | |
2610 | extern int listing; | |
2611 | if (listing) | |
2612 | { | |
2613 | listing_source_line ((unsigned int) line_base); | |
2614 | } | |
2615 | } | |
2616 | #endif | |
2617 | } | |
2618 | ||
2619 | S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); | |
2620 | SA_SET_SYM_LNNO (def_symbol_in_progress, this_base); | |
2621 | ||
2622 | demand_empty_rest_of_line (); | |
2623 | } | |
2624 | ||
2625 | static void | |
2626 | obj_coff_size (ignore) | |
a04b544b | 2627 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2628 | { |
2629 | if (def_symbol_in_progress == NULL) | |
2630 | { | |
2631 | as_warn (_(".size pseudo-op used outside of .def/.endef ignored.")); | |
2632 | demand_empty_rest_of_line (); | |
2633 | return; | |
2634 | } /* if not inside .def/.endef */ | |
2635 | ||
2636 | S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); | |
2637 | SA_SET_SYM_SIZE (def_symbol_in_progress, get_absolute_expression ()); | |
2638 | demand_empty_rest_of_line (); | |
2639 | } | |
2640 | ||
2641 | static void | |
2642 | obj_coff_scl (ignore) | |
a04b544b | 2643 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2644 | { |
2645 | if (def_symbol_in_progress == NULL) | |
2646 | { | |
2647 | as_warn (_(".scl pseudo-op used outside of .def/.endef ignored.")); | |
2648 | demand_empty_rest_of_line (); | |
2649 | return; | |
2650 | } /* if not inside .def/.endef */ | |
2651 | ||
2652 | S_SET_STORAGE_CLASS (def_symbol_in_progress, get_absolute_expression ()); | |
2653 | demand_empty_rest_of_line (); | |
2654 | } | |
2655 | ||
2656 | static void | |
2657 | obj_coff_tag (ignore) | |
a04b544b | 2658 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2659 | { |
2660 | char *symbol_name; | |
2661 | char name_end; | |
2662 | ||
2663 | if (def_symbol_in_progress == NULL) | |
2664 | { | |
2665 | as_warn (_(".tag pseudo-op used outside of .def/.endef ignored.")); | |
2666 | demand_empty_rest_of_line (); | |
2667 | return; | |
2668 | } | |
2669 | ||
2670 | S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); | |
2671 | symbol_name = input_line_pointer; | |
2672 | name_end = get_symbol_end (); | |
2673 | #ifdef tc_canonicalize_symbol_name | |
2674 | symbol_name = tc_canonicalize_symbol_name (symbol_name); | |
2675 | #endif | |
2676 | ||
2677 | /* Assume that the symbol referred to by .tag is always defined. | |
2678 | This was a bad assumption. I've added find_or_make. xoxorich. */ | |
2679 | SA_SET_SYM_TAGNDX (def_symbol_in_progress, | |
2680 | (long) tag_find_or_make (symbol_name)); | |
2681 | if (SA_GET_SYM_TAGNDX (def_symbol_in_progress) == 0L) | |
2682 | { | |
2683 | as_warn (_("tag not found for .tag %s"), symbol_name); | |
2684 | } /* not defined */ | |
2685 | ||
2686 | SF_SET_TAGGED (def_symbol_in_progress); | |
2687 | *input_line_pointer = name_end; | |
2688 | ||
2689 | demand_empty_rest_of_line (); | |
2690 | } | |
2691 | ||
2692 | static void | |
2693 | obj_coff_type (ignore) | |
a04b544b | 2694 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2695 | { |
2696 | if (def_symbol_in_progress == NULL) | |
2697 | { | |
2698 | as_warn (_(".type pseudo-op used outside of .def/.endef ignored.")); | |
2699 | demand_empty_rest_of_line (); | |
2700 | return; | |
2701 | } /* if not inside .def/.endef */ | |
2702 | ||
2703 | S_SET_DATA_TYPE (def_symbol_in_progress, get_absolute_expression ()); | |
2704 | ||
2705 | if (ISFCN (S_GET_DATA_TYPE (def_symbol_in_progress)) && | |
2706 | S_GET_STORAGE_CLASS (def_symbol_in_progress) != C_TPDEF) | |
2707 | { | |
2708 | SF_SET_FUNCTION (def_symbol_in_progress); | |
2709 | } /* is a function */ | |
2710 | ||
2711 | demand_empty_rest_of_line (); | |
2712 | } | |
2713 | ||
2714 | static void | |
2715 | obj_coff_val (ignore) | |
a04b544b | 2716 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2717 | { |
2718 | if (def_symbol_in_progress == NULL) | |
2719 | { | |
2720 | as_warn (_(".val pseudo-op used outside of .def/.endef ignored.")); | |
2721 | demand_empty_rest_of_line (); | |
2722 | return; | |
2723 | } /* if not inside .def/.endef */ | |
2724 | ||
2725 | if (is_name_beginner (*input_line_pointer)) | |
2726 | { | |
2727 | char *symbol_name = input_line_pointer; | |
2728 | char name_end = get_symbol_end (); | |
2729 | ||
2730 | #ifdef tc_canonicalize_symbol_name | |
2731 | symbol_name = tc_canonicalize_symbol_name (symbol_name); | |
2732 | #endif | |
2733 | ||
2734 | if (!strcmp (symbol_name, ".")) | |
2735 | { | |
2736 | def_symbol_in_progress->sy_frag = frag_now; | |
2737 | S_SET_VALUE (def_symbol_in_progress, (valueT) frag_now_fix ()); | |
2738 | /* If the .val is != from the .def (e.g. statics) */ | |
2739 | } | |
2740 | else if (strcmp (S_GET_NAME (def_symbol_in_progress), symbol_name)) | |
2741 | { | |
2742 | def_symbol_in_progress->sy_value.X_op = O_symbol; | |
2743 | def_symbol_in_progress->sy_value.X_add_symbol = | |
2744 | symbol_find_or_make (symbol_name); | |
2745 | def_symbol_in_progress->sy_value.X_op_symbol = NULL; | |
2746 | def_symbol_in_progress->sy_value.X_add_number = 0; | |
2747 | ||
2748 | /* If the segment is undefined when the forward reference is | |
2749 | resolved, then copy the segment id from the forward | |
2750 | symbol. */ | |
2751 | SF_SET_GET_SEGMENT (def_symbol_in_progress); | |
2752 | ||
0561a208 ILT |
2753 | /* FIXME: gcc can generate address expressions here in |
2754 | unusual cases (search for "obscure" in sdbout.c). We | |
2755 | just ignore the offset here, thus generating incorrect | |
2756 | debugging information. We ignore the rest of the line | |
2757 | just below. */ | |
252b5132 RH |
2758 | } |
2759 | /* Otherwise, it is the name of a non debug symbol and | |
2760 | its value will be calculated later. */ | |
2761 | *input_line_pointer = name_end; | |
2762 | ||
2763 | /* FIXME: this is to avoid an error message in the | |
2764 | FIXME case mentioned just above. */ | |
2765 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
2766 | ++input_line_pointer; | |
2767 | } | |
2768 | else | |
2769 | { | |
2770 | S_SET_VALUE (def_symbol_in_progress, | |
2771 | (valueT) get_absolute_expression ()); | |
2772 | } /* if symbol based */ | |
2773 | ||
2774 | demand_empty_rest_of_line (); | |
2775 | } | |
2776 | ||
2777 | #ifdef TE_PE | |
2778 | ||
2779 | /* Handle the .linkonce pseudo-op. This is parsed by s_linkonce in | |
2780 | read.c, which then calls this object file format specific routine. */ | |
2781 | ||
2782 | void | |
2783 | obj_coff_pe_handle_link_once (type) | |
2784 | enum linkonce_type type; | |
2785 | { | |
2786 | seg_info (now_seg)->scnhdr.s_flags |= IMAGE_SCN_LNK_COMDAT; | |
2787 | ||
2788 | /* We store the type in the seg_info structure, and use it to set up | |
2789 | the auxiliary entry for the section symbol in c_section_symbol. */ | |
2790 | seg_info (now_seg)->linkonce = type; | |
2791 | } | |
2792 | ||
2793 | #endif /* TE_PE */ | |
2794 | ||
2795 | void | |
2796 | coff_obj_read_begin_hook () | |
2797 | { | |
2798 | /* These had better be the same. Usually 18 bytes. */ | |
2799 | #ifndef BFD_HEADERS | |
2800 | know (sizeof (SYMENT) == sizeof (AUXENT)); | |
2801 | know (SYMESZ == AUXESZ); | |
2802 | #endif | |
2803 | tag_init (); | |
2804 | } | |
2805 | ||
2806 | /* This function runs through the symbol table and puts all the | |
2807 | externals onto another chain */ | |
2808 | ||
2809 | /* The chain of globals. */ | |
2810 | symbolS *symbol_globalP; | |
2811 | symbolS *symbol_global_lastP; | |
2812 | ||
2813 | /* The chain of externals */ | |
2814 | symbolS *symbol_externP; | |
2815 | symbolS *symbol_extern_lastP; | |
2816 | ||
2817 | stack *block_stack; | |
2818 | symbolS *last_functionP; | |
2819 | static symbolS *last_bfP; | |
2820 | symbolS *last_tagP; | |
2821 | ||
2822 | static unsigned int | |
2823 | yank_symbols () | |
2824 | { | |
2825 | symbolS *symbolP; | |
2826 | unsigned int symbol_number = 0; | |
2827 | unsigned int last_file_symno = 0; | |
2828 | ||
2829 | struct filename_list *filename_list_scan = filename_list_head; | |
2830 | ||
2831 | for (symbolP = symbol_rootP; | |
2832 | symbolP; | |
2833 | symbolP = symbolP ? symbol_next (symbolP) : symbol_rootP) | |
2834 | { | |
2835 | if (symbolP->sy_mri_common) | |
2836 | { | |
2837 | if (S_GET_STORAGE_CLASS (symbolP) == C_EXT | |
2838 | #ifdef TE_PE | |
2839 | || S_GET_STORAGE_CLASS (symbolP) == C_NT_WEAK | |
2840 | #endif | |
2841 | || S_GET_STORAGE_CLASS (symbolP) == C_WEAKEXT) | |
2842 | as_bad (_("%s: global symbols not supported in common sections"), | |
2843 | S_GET_NAME (symbolP)); | |
2844 | symbol_remove (symbolP, &symbol_rootP, &symbol_lastP); | |
2845 | continue; | |
2846 | } | |
2847 | ||
2848 | if (!SF_GET_DEBUG (symbolP)) | |
2849 | { | |
2850 | /* Debug symbols do not need all this rubbish */ | |
2851 | symbolS *real_symbolP; | |
2852 | ||
2853 | /* L* and C_EFCN symbols never merge. */ | |
2854 | if (!SF_GET_LOCAL (symbolP) | |
2855 | && !SF_GET_STATICS (symbolP) | |
2856 | && S_GET_STORAGE_CLASS (symbolP) != C_LABEL | |
2857 | && symbolP->sy_value.X_op == O_constant | |
2858 | && (real_symbolP = symbol_find_base (S_GET_NAME (symbolP), DO_NOT_STRIP)) | |
2859 | && real_symbolP != symbolP) | |
2860 | { | |
2861 | /* FIXME-SOON: where do dups come from? | |
2862 | Maybe tag references before definitions? xoxorich. */ | |
2863 | /* Move the debug data from the debug symbol to the | |
2864 | real symbol. Do NOT do the oposite (i.e. move from | |
2865 | real symbol to debug symbol and remove real symbol from the | |
2866 | list.) Because some pointers refer to the real symbol | |
2867 | whereas no pointers refer to the debug symbol. */ | |
2868 | c_symbol_merge (symbolP, real_symbolP); | |
2869 | /* Replace the current symbol by the real one */ | |
2870 | /* The symbols will never be the last or the first | |
2871 | because : 1st symbol is .file and 3 last symbols are | |
2872 | .text, .data, .bss */ | |
2873 | symbol_remove (real_symbolP, &symbol_rootP, &symbol_lastP); | |
2874 | symbol_insert (real_symbolP, symbolP, &symbol_rootP, &symbol_lastP); | |
2875 | symbol_remove (symbolP, &symbol_rootP, &symbol_lastP); | |
2876 | symbolP = real_symbolP; | |
2877 | } /* if not local but dup'd */ | |
2878 | ||
2879 | if (flag_readonly_data_in_text && (S_GET_SEGMENT (symbolP) == SEG_E1)) | |
2880 | { | |
2881 | S_SET_SEGMENT (symbolP, SEG_E0); | |
2882 | } /* push data into text */ | |
2883 | ||
2884 | resolve_symbol_value (symbolP, 1); | |
2885 | ||
2886 | if (S_GET_STORAGE_CLASS (symbolP) == C_NULL) | |
2887 | { | |
2888 | if (!S_IS_DEFINED (symbolP) && !SF_GET_LOCAL (symbolP)) | |
2889 | { | |
2890 | S_SET_EXTERNAL (symbolP); | |
2891 | } | |
2892 | else if (S_GET_SEGMENT (symbolP) == SEG_E0) | |
2893 | { | |
2894 | S_SET_STORAGE_CLASS (symbolP, C_LABEL); | |
2895 | } | |
2896 | else | |
2897 | { | |
2898 | S_SET_STORAGE_CLASS (symbolP, C_STAT); | |
2899 | } | |
2900 | } | |
2901 | ||
2902 | /* Mainly to speed up if not -g */ | |
2903 | if (SF_GET_PROCESS (symbolP)) | |
2904 | { | |
2905 | /* Handle the nested blocks auxiliary info. */ | |
2906 | if (S_GET_STORAGE_CLASS (symbolP) == C_BLOCK) | |
2907 | { | |
2908 | if (!strcmp (S_GET_NAME (symbolP), ".bb")) | |
2909 | stack_push (block_stack, (char *) &symbolP); | |
2910 | else | |
2911 | { /* .eb */ | |
2912 | register symbolS *begin_symbolP; | |
2913 | begin_symbolP = *(symbolS **) stack_pop (block_stack); | |
2914 | if (begin_symbolP == (symbolS *) 0) | |
2915 | as_warn (_("mismatched .eb")); | |
2916 | else | |
2917 | SA_SET_SYM_ENDNDX (begin_symbolP, symbol_number + 2); | |
2918 | } | |
2919 | } | |
2920 | /* If we are able to identify the type of a function, and we | |
2921 | are out of a function (last_functionP == 0) then, the | |
2922 | function symbol will be associated with an auxiliary | |
2923 | entry. */ | |
2924 | if (last_functionP == (symbolS *) 0 && | |
2925 | SF_GET_FUNCTION (symbolP)) | |
2926 | { | |
2927 | last_functionP = symbolP; | |
2928 | ||
2929 | if (S_GET_NUMBER_AUXILIARY (symbolP) < 1) | |
2930 | { | |
2931 | S_SET_NUMBER_AUXILIARY (symbolP, 1); | |
2932 | } /* make it at least 1 */ | |
2933 | ||
2934 | /* Clobber possible stale .dim information. */ | |
2935 | #if 0 | |
2936 | /* Iffed out by steve - this fries the lnnoptr info too */ | |
2937 | bzero (symbolP->sy_symbol.ost_auxent[0].x_sym.x_fcnary.x_ary.x_dimen, | |
2938 | sizeof (symbolP->sy_symbol.ost_auxent[0].x_sym.x_fcnary.x_ary.x_dimen)); | |
2939 | #endif | |
2940 | } | |
2941 | if (S_GET_STORAGE_CLASS (symbolP) == C_FCN) | |
2942 | { | |
2943 | if (strcmp (S_GET_NAME (symbolP), ".bf") == 0) | |
2944 | { | |
2945 | if (last_bfP != NULL) | |
2946 | SA_SET_SYM_ENDNDX (last_bfP, symbol_number); | |
2947 | last_bfP = symbolP; | |
2948 | } | |
2949 | } | |
2950 | else if (S_GET_STORAGE_CLASS (symbolP) == C_EFCN) | |
2951 | { | |
2952 | /* I don't even know if this is needed for sdb. But | |
2953 | the standard assembler generates it, so... */ | |
2954 | if (last_functionP == (symbolS *) 0) | |
2955 | as_fatal (_("C_EFCN symbol out of scope")); | |
2956 | SA_SET_SYM_FSIZE (last_functionP, | |
2957 | (long) (S_GET_VALUE (symbolP) - | |
2958 | S_GET_VALUE (last_functionP))); | |
2959 | SA_SET_SYM_ENDNDX (last_functionP, symbol_number); | |
2960 | last_functionP = (symbolS *) 0; | |
2961 | } | |
2962 | } | |
2963 | } | |
2964 | else if (SF_GET_TAG (symbolP)) | |
2965 | { | |
2966 | /* First descriptor of a structure must point to | |
2967 | the first slot after the structure description. */ | |
2968 | last_tagP = symbolP; | |
2969 | ||
2970 | } | |
2971 | else if (S_GET_STORAGE_CLASS (symbolP) == C_EOS) | |
2972 | { | |
2973 | /* +2 take in account the current symbol */ | |
2974 | SA_SET_SYM_ENDNDX (last_tagP, symbol_number + 2); | |
2975 | } | |
2976 | else if (S_GET_STORAGE_CLASS (symbolP) == C_FILE) | |
2977 | { | |
2978 | /* If the filename was too long to fit in the | |
2979 | auxent, put it in the string table */ | |
2980 | if (SA_GET_FILE_FNAME_ZEROS (symbolP) == 0 | |
2981 | && SA_GET_FILE_FNAME_OFFSET (symbolP) != 0) | |
2982 | { | |
2983 | SA_SET_FILE_FNAME_OFFSET (symbolP, string_byte_count); | |
2984 | string_byte_count += strlen (filename_list_scan->filename) + 1; | |
2985 | filename_list_scan = filename_list_scan->next; | |
2986 | } | |
2987 | if (S_GET_VALUE (symbolP)) | |
2988 | { | |
2989 | S_SET_VALUE (symbolP, last_file_symno); | |
2990 | last_file_symno = symbol_number; | |
2991 | } /* no one points at the first .file symbol */ | |
2992 | } /* if debug or tag or eos or file */ | |
2993 | ||
2994 | #ifdef tc_frob_coff_symbol | |
2995 | tc_frob_coff_symbol (symbolP); | |
2996 | #endif | |
2997 | ||
2998 | /* We must put the external symbols apart. The loader | |
2999 | does not bomb if we do not. But the references in | |
3000 | the endndx field for a .bb symbol are not corrected | |
3001 | if an external symbol is removed between .bb and .be. | |
3002 | I.e in the following case : | |
3003 | [20] .bb endndx = 22 | |
3004 | [21] foo external | |
3005 | [22] .be | |
3006 | ld will move the symbol 21 to the end of the list but | |
3007 | endndx will still be 22 instead of 21. */ | |
3008 | ||
3009 | ||
3010 | if (SF_GET_LOCAL (symbolP)) | |
3011 | { | |
3012 | /* remove C_EFCN and LOCAL (L...) symbols */ | |
3013 | /* next pointer remains valid */ | |
3014 | symbol_remove (symbolP, &symbol_rootP, &symbol_lastP); | |
3015 | ||
3016 | } | |
3017 | else if (symbolP->sy_value.X_op == O_symbol | |
3018 | && (! S_IS_DEFINED (symbolP) || S_IS_COMMON (symbolP))) | |
3019 | { | |
3020 | /* Skip symbols which were equated to undefined or common | |
3021 | symbols. */ | |
3022 | symbol_remove (symbolP, &symbol_rootP, &symbol_lastP); | |
3023 | } | |
3024 | else if (!S_IS_DEFINED (symbolP) | |
3025 | && !S_IS_DEBUG (symbolP) | |
3026 | && !SF_GET_STATICS (symbolP) | |
3027 | && (S_GET_STORAGE_CLASS (symbolP) == C_EXT | |
3028 | #ifdef TE_PE | |
3029 | || S_GET_STORAGE_CLASS (symbolP) == C_NT_WEAK | |
3030 | #endif | |
3031 | || S_GET_STORAGE_CLASS (symbolP) == C_WEAKEXT)) | |
3032 | { | |
3033 | /* if external, Remove from the list */ | |
3034 | symbolS *hold = symbol_previous (symbolP); | |
3035 | ||
3036 | symbol_remove (symbolP, &symbol_rootP, &symbol_lastP); | |
3037 | symbol_clear_list_pointers (symbolP); | |
3038 | symbol_append (symbolP, symbol_extern_lastP, &symbol_externP, &symbol_extern_lastP); | |
3039 | symbolP = hold; | |
3040 | } | |
3041 | else if (! S_IS_DEBUG (symbolP) | |
3042 | && ! SF_GET_STATICS (symbolP) | |
3043 | && ! SF_GET_FUNCTION (symbolP) | |
3044 | && (S_GET_STORAGE_CLASS (symbolP) == C_EXT | |
3045 | #ifdef TE_PE | |
3046 | || S_GET_STORAGE_CLASS (symbolP) == C_NT_WEAK | |
3047 | #endif | |
3048 | || S_GET_STORAGE_CLASS (symbolP) == C_NT_WEAK)) | |
3049 | { | |
3050 | symbolS *hold = symbol_previous (symbolP); | |
3051 | ||
3052 | /* The O'Reilly COFF book says that defined global symbols | |
3053 | come at the end of the symbol table, just before | |
3054 | undefined global symbols. */ | |
3055 | ||
3056 | symbol_remove (symbolP, &symbol_rootP, &symbol_lastP); | |
3057 | symbol_clear_list_pointers (symbolP); | |
3058 | symbol_append (symbolP, symbol_global_lastP, &symbol_globalP, | |
3059 | &symbol_global_lastP); | |
3060 | symbolP = hold; | |
3061 | } | |
3062 | else | |
3063 | { | |
3064 | if (SF_GET_STRING (symbolP)) | |
3065 | { | |
3066 | symbolP->sy_name_offset = string_byte_count; | |
3067 | string_byte_count += strlen (S_GET_NAME (symbolP)) + 1; | |
3068 | } | |
3069 | else | |
3070 | { | |
3071 | symbolP->sy_name_offset = 0; | |
3072 | } /* fix "long" names */ | |
3073 | ||
3074 | symbolP->sy_number = symbol_number; | |
3075 | symbol_number += 1 + S_GET_NUMBER_AUXILIARY (symbolP); | |
3076 | } /* if local symbol */ | |
3077 | } /* traverse the symbol list */ | |
3078 | return symbol_number; | |
3079 | ||
3080 | } | |
3081 | ||
3082 | ||
3083 | static unsigned int | |
3084 | glue_symbols (head, tail) | |
3085 | symbolS **head; | |
3086 | symbolS **tail; | |
3087 | { | |
3088 | unsigned int symbol_number = 0; | |
3089 | ||
3090 | while (*head != NULL) | |
3091 | { | |
3092 | symbolS *tmp = *head; | |
3093 | ||
3094 | /* append */ | |
3095 | symbol_remove (tmp, head, tail); | |
3096 | symbol_append (tmp, symbol_lastP, &symbol_rootP, &symbol_lastP); | |
3097 | ||
3098 | /* and process */ | |
3099 | if (SF_GET_STRING (tmp)) | |
3100 | { | |
3101 | tmp->sy_name_offset = string_byte_count; | |
3102 | string_byte_count += strlen (S_GET_NAME (tmp)) + 1; | |
3103 | } | |
3104 | else | |
3105 | { | |
3106 | tmp->sy_name_offset = 0; | |
3107 | } /* fix "long" names */ | |
3108 | ||
3109 | tmp->sy_number = symbol_number; | |
3110 | symbol_number += 1 + S_GET_NUMBER_AUXILIARY (tmp); | |
3111 | } /* append the entire extern chain */ | |
3112 | ||
3113 | return symbol_number; | |
3114 | } | |
3115 | ||
3116 | static unsigned int | |
3117 | tie_tags () | |
3118 | { | |
3119 | unsigned int symbol_number = 0; | |
3120 | symbolS *symbolP; | |
3121 | ||
3122 | for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next (symbolP)) | |
3123 | { | |
3124 | symbolP->sy_number = symbol_number; | |
3125 | ||
3126 | if (SF_GET_TAGGED (symbolP)) | |
3127 | { | |
3128 | SA_SET_SYM_TAGNDX | |
3129 | (symbolP, | |
3130 | ((symbolS *) SA_GET_SYM_TAGNDX (symbolP))->sy_number); | |
3131 | } | |
3132 | ||
3133 | symbol_number += 1 + S_GET_NUMBER_AUXILIARY (symbolP); | |
3134 | } | |
3135 | ||
3136 | return symbol_number; | |
3137 | } | |
3138 | ||
3139 | static void | |
3140 | crawl_symbols (h, abfd) | |
3141 | object_headers *h; | |
a04b544b | 3142 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
3143 | { |
3144 | unsigned int i; | |
3145 | ||
3146 | /* Initialize the stack used to keep track of the matching .bb .be */ | |
3147 | ||
3148 | block_stack = stack_init (512, sizeof (symbolS *)); | |
3149 | ||
3150 | /* The symbol list should be ordered according to the following sequence | |
3151 | * order : | |
3152 | * . .file symbol | |
3153 | * . debug entries for functions | |
3154 | * . fake symbols for the sections, including .text .data and .bss | |
3155 | * . defined symbols | |
3156 | * . undefined symbols | |
3157 | * But this is not mandatory. The only important point is to put the | |
3158 | * undefined symbols at the end of the list. | |
3159 | */ | |
3160 | ||
3161 | /* Is there a .file symbol ? If not insert one at the beginning. */ | |
3162 | if (symbol_rootP == NULL | |
3163 | || S_GET_STORAGE_CLASS (symbol_rootP) != C_FILE) | |
3164 | { | |
3165 | c_dot_file_symbol ("fake"); | |
3166 | } | |
3167 | ||
3168 | /* | |
3169 | * Build up static symbols for the sections, they are filled in later | |
3170 | */ | |
3171 | ||
3172 | ||
3173 | for (i = SEG_E0; i < SEG_LAST; i++) | |
3174 | if (segment_info[i].scnhdr.s_name[0]) | |
3175 | segment_info[i].dot = c_section_symbol (segment_info[i].name, | |
3176 | i - SEG_E0 + 1); | |
3177 | ||
3178 | /* Take all the externals out and put them into another chain */ | |
3179 | H_SET_SYMBOL_TABLE_SIZE (h, yank_symbols ()); | |
3180 | /* Take the externals and glue them onto the end.*/ | |
3181 | H_SET_SYMBOL_TABLE_SIZE (h, | |
3182 | (H_GET_SYMBOL_COUNT (h) | |
3183 | + glue_symbols (&symbol_globalP, | |
3184 | &symbol_global_lastP) | |
3185 | + glue_symbols (&symbol_externP, | |
3186 | &symbol_extern_lastP))); | |
3187 | ||
3188 | H_SET_SYMBOL_TABLE_SIZE (h, tie_tags ()); | |
3189 | know (symbol_globalP == NULL); | |
3190 | know (symbol_global_lastP == NULL); | |
3191 | know (symbol_externP == NULL); | |
3192 | know (symbol_extern_lastP == NULL); | |
3193 | } | |
3194 | ||
3195 | /* | |
3196 | * Find strings by crawling along symbol table chain. | |
3197 | */ | |
3198 | ||
3199 | void | |
3200 | w_strings (where) | |
3201 | char *where; | |
3202 | { | |
3203 | symbolS *symbolP; | |
3204 | struct filename_list *filename_list_scan = filename_list_head; | |
3205 | ||
3206 | /* Gotta do md_ byte-ordering stuff for string_byte_count first - KWK */ | |
3207 | md_number_to_chars (where, (valueT) string_byte_count, 4); | |
3208 | where += 4; | |
3209 | ||
3210 | #ifdef COFF_LONG_SECTION_NAMES | |
3211 | /* Support long section names as found in PE. This code must | |
3212 | coordinate with that in coff_header_append and write_object_file. */ | |
3213 | { | |
3214 | unsigned int i; | |
3215 | ||
3216 | for (i = SEG_E0; i < SEG_LAST; i++) | |
3217 | { | |
3218 | if (segment_info[i].scnhdr.s_name[0] | |
3219 | && strlen (segment_info[i].name) > SCNNMLEN) | |
3220 | { | |
3221 | unsigned int size; | |
3222 | ||
3223 | size = strlen (segment_info[i].name) + 1; | |
3224 | memcpy (where, segment_info[i].name, size); | |
3225 | where += size; | |
3226 | } | |
3227 | } | |
3228 | } | |
3229 | #endif /* COFF_LONG_SECTION_NAMES */ | |
3230 | ||
3231 | for (symbolP = symbol_rootP; | |
3232 | symbolP; | |
3233 | symbolP = symbol_next (symbolP)) | |
3234 | { | |
3235 | unsigned int size; | |
3236 | ||
3237 | if (SF_GET_STRING (symbolP)) | |
3238 | { | |
3239 | size = strlen (S_GET_NAME (symbolP)) + 1; | |
3240 | memcpy (where, S_GET_NAME (symbolP), size); | |
3241 | where += size; | |
3242 | } | |
3243 | if (S_GET_STORAGE_CLASS (symbolP) == C_FILE | |
3244 | && SA_GET_FILE_FNAME_ZEROS (symbolP) == 0 | |
3245 | && SA_GET_FILE_FNAME_OFFSET (symbolP) != 0) | |
3246 | { | |
3247 | size = strlen (filename_list_scan->filename) + 1; | |
3248 | memcpy (where, filename_list_scan->filename, size); | |
3249 | filename_list_scan = filename_list_scan ->next; | |
3250 | where += size; | |
3251 | } | |
3252 | } | |
3253 | } | |
3254 | ||
3255 | static void | |
3256 | do_linenos_for (abfd, h, file_cursor) | |
3257 | bfd * abfd; | |
3258 | object_headers * h; | |
3259 | unsigned long *file_cursor; | |
3260 | { | |
3261 | unsigned int idx; | |
3262 | unsigned long start = *file_cursor; | |
3263 | ||
3264 | for (idx = SEG_E0; idx < SEG_LAST; idx++) | |
3265 | { | |
3266 | segment_info_type *s = segment_info + idx; | |
3267 | ||
3268 | ||
3269 | if (s->scnhdr.s_nlnno != 0) | |
3270 | { | |
3271 | struct lineno_list *line_ptr; | |
3272 | ||
3273 | struct external_lineno *buffer = | |
3274 | (struct external_lineno *) xmalloc (s->scnhdr.s_nlnno * LINESZ); | |
3275 | ||
3276 | struct external_lineno *dst = buffer; | |
3277 | ||
3278 | /* Run through the table we've built and turn it into its external | |
3279 | form, take this chance to remove duplicates */ | |
3280 | ||
3281 | for (line_ptr = s->lineno_list_head; | |
3282 | line_ptr != (struct lineno_list *) NULL; | |
3283 | line_ptr = line_ptr->next) | |
3284 | { | |
3285 | ||
3286 | if (line_ptr->line.l_lnno == 0) | |
3287 | { | |
3288 | /* Turn a pointer to a symbol into the symbols' index */ | |
3289 | line_ptr->line.l_addr.l_symndx = | |
3290 | ((symbolS *) line_ptr->line.l_addr.l_symndx)->sy_number; | |
3291 | } | |
3292 | else | |
3293 | { | |
3294 | line_ptr->line.l_addr.l_paddr += ((struct frag *) (line_ptr->frag))->fr_address; | |
3295 | } | |
3296 | ||
3297 | ||
3298 | (void) bfd_coff_swap_lineno_out (abfd, &(line_ptr->line), dst); | |
3299 | dst++; | |
3300 | ||
3301 | } | |
3302 | ||
3303 | s->scnhdr.s_lnnoptr = *file_cursor; | |
3304 | ||
3305 | bfd_write (buffer, 1, s->scnhdr.s_nlnno * LINESZ, abfd); | |
3306 | free (buffer); | |
3307 | ||
3308 | *file_cursor += s->scnhdr.s_nlnno * LINESZ; | |
3309 | } | |
3310 | } | |
3311 | H_SET_LINENO_SIZE (h, *file_cursor - start); | |
3312 | } | |
3313 | ||
3314 | ||
3315 | /* Now we run through the list of frag chains in a segment and | |
3316 | make all the subsegment frags appear at the end of the | |
3317 | list, as if the seg 0 was extra long */ | |
3318 | ||
3319 | static void | |
3320 | remove_subsegs () | |
3321 | { | |
3322 | unsigned int i; | |
3323 | ||
3324 | for (i = SEG_E0; i < SEG_UNKNOWN; i++) | |
3325 | { | |
3326 | frchainS *head = segment_info[i].frchainP; | |
3327 | fragS dummy; | |
3328 | fragS *prev_frag = &dummy; | |
3329 | ||
3330 | while (head && head->frch_seg == i) | |
3331 | { | |
3332 | prev_frag->fr_next = head->frch_root; | |
3333 | prev_frag = head->frch_last; | |
3334 | head = head->frch_next; | |
3335 | } | |
3336 | prev_frag->fr_next = 0; | |
3337 | } | |
3338 | } | |
3339 | ||
3340 | unsigned long machine; | |
3341 | int coff_flags; | |
3342 | extern void | |
3343 | write_object_file () | |
3344 | { | |
3345 | int i; | |
3346 | const char *name; | |
3347 | struct frchain *frchain_ptr; | |
3348 | ||
3349 | object_headers headers; | |
3350 | unsigned long file_cursor; | |
3351 | bfd *abfd; | |
3352 | unsigned int addr; | |
3353 | abfd = bfd_openw (out_file_name, TARGET_FORMAT); | |
3354 | ||
3355 | ||
3356 | if (abfd == 0) | |
3357 | { | |
3358 | as_perror (_("FATAL: Can't create %s"), out_file_name); | |
3359 | exit (EXIT_FAILURE); | |
3360 | } | |
3361 | bfd_set_format (abfd, bfd_object); | |
3362 | bfd_set_arch_mach (abfd, BFD_ARCH, machine); | |
3363 | ||
3364 | string_byte_count = 4; | |
3365 | ||
3366 | for (frchain_ptr = frchain_root; | |
3367 | frchain_ptr != (struct frchain *) NULL; | |
3368 | frchain_ptr = frchain_ptr->frch_next) | |
3369 | { | |
3370 | /* Run through all the sub-segments and align them up. Also | |
3371 | close any open frags. We tack a .fill onto the end of the | |
3372 | frag chain so that any .align's size can be worked by looking | |
3373 | at the next frag. */ | |
3374 | ||
3375 | subseg_set (frchain_ptr->frch_seg, frchain_ptr->frch_subseg); | |
b9e57a38 | 3376 | |
252b5132 RH |
3377 | #ifndef SUB_SEGMENT_ALIGN |
3378 | #define SUB_SEGMENT_ALIGN(SEG) 1 | |
3379 | #endif | |
3380 | #ifdef md_do_align | |
3381 | md_do_align (SUB_SEGMENT_ALIGN (now_seg), (char *) NULL, 0, 0, | |
3382 | alignment_done); | |
3383 | #endif | |
b9e57a38 ILT |
3384 | frag_align (SUB_SEGMENT_ALIGN (now_seg), |
3385 | subseg_text_p (now_seg) ? NOP_OPCODE : 0, | |
3386 | 0); | |
252b5132 RH |
3387 | #ifdef md_do_align |
3388 | alignment_done: | |
3389 | #endif | |
3390 | frag_wane (frag_now); | |
3391 | frag_now->fr_fix = 0; | |
3392 | know (frag_now->fr_next == NULL); | |
3393 | } | |
3394 | ||
3395 | ||
3396 | remove_subsegs (); | |
3397 | ||
3398 | ||
3399 | for (i = SEG_E0; i < SEG_UNKNOWN; i++) | |
3400 | { | |
3401 | relax_segment (segment_info[i].frchainP->frch_root, i); | |
3402 | } | |
3403 | ||
3404 | H_SET_NUMBER_OF_SECTIONS (&headers, 0); | |
3405 | ||
3406 | /* Find out how big the sections are, and set the addresses. */ | |
3407 | addr = 0; | |
3408 | for (i = SEG_E0; i < SEG_UNKNOWN; i++) | |
3409 | { | |
3410 | long size; | |
3411 | ||
3412 | segment_info[i].scnhdr.s_paddr = addr; | |
3413 | segment_info[i].scnhdr.s_vaddr = addr; | |
3414 | ||
3415 | if (segment_info[i].scnhdr.s_name[0]) | |
3416 | { | |
3417 | H_SET_NUMBER_OF_SECTIONS (&headers, | |
3418 | H_GET_NUMBER_OF_SECTIONS (&headers) + 1); | |
3419 | ||
3420 | #ifdef COFF_LONG_SECTION_NAMES | |
3421 | /* Support long section names as found in PE. This code | |
3422 | must coordinate with that in coff_header_append and | |
3423 | w_strings. */ | |
3424 | { | |
3425 | unsigned int len; | |
3426 | ||
3427 | len = strlen (segment_info[i].name); | |
3428 | if (len > SCNNMLEN) | |
3429 | string_byte_count += len + 1; | |
3430 | } | |
3431 | #endif /* COFF_LONG_SECTION_NAMES */ | |
3432 | } | |
3433 | ||
3434 | size = size_section (abfd, (unsigned int) i); | |
3435 | addr += size; | |
3436 | ||
3437 | /* I think the section alignment is only used on the i960; the | |
3438 | i960 needs it, and it should do no harm on other targets. */ | |
3439 | #ifdef ALIGNMENT_IN_S_FLAGS | |
3440 | segment_info[i].scnhdr.s_flags |= (section_alignment[i] & 0xF) << 8; | |
3441 | #else | |
3442 | segment_info[i].scnhdr.s_align = 1 << section_alignment[i]; | |
3443 | #endif | |
3444 | ||
3445 | if (i == SEG_E0) | |
3446 | H_SET_TEXT_SIZE (&headers, size); | |
3447 | else if (i == SEG_E1) | |
3448 | H_SET_DATA_SIZE (&headers, size); | |
3449 | else if (i == SEG_E2) | |
3450 | H_SET_BSS_SIZE (&headers, size); | |
3451 | } | |
3452 | ||
3453 | /* Turn the gas native symbol table shape into a coff symbol table */ | |
3454 | crawl_symbols (&headers, abfd); | |
3455 | ||
3456 | if (string_byte_count == 4) | |
3457 | string_byte_count = 0; | |
3458 | ||
3459 | H_SET_STRING_SIZE (&headers, string_byte_count); | |
3460 | ||
3461 | #ifdef tc_frob_file | |
3462 | tc_frob_file (); | |
3463 | #endif | |
3464 | ||
3465 | for (i = SEG_E0; i < SEG_UNKNOWN; i++) | |
3466 | { | |
3467 | fixup_mdeps (segment_info[i].frchainP->frch_root, &headers, i); | |
3468 | fixup_segment (&segment_info[i], i); | |
3469 | } | |
3470 | ||
3471 | /* Look for ".stab" segments and fill in their initial symbols | |
3472 | correctly. */ | |
3473 | for (i = SEG_E0; i < SEG_UNKNOWN; i++) | |
3474 | { | |
3475 | name = segment_info[i].name; | |
3476 | ||
3477 | if (name != NULL | |
3478 | && strncmp (".stab", name, 5) == 0 | |
3479 | && strncmp (".stabstr", name, 8) != 0) | |
3480 | adjust_stab_section (abfd, i); | |
3481 | } | |
3482 | ||
3483 | file_cursor = H_GET_TEXT_FILE_OFFSET (&headers); | |
3484 | ||
3485 | bfd_seek (abfd, (file_ptr) file_cursor, 0); | |
3486 | ||
3487 | /* Plant the data */ | |
3488 | ||
3489 | fill_section (abfd, &headers, &file_cursor); | |
3490 | ||
3491 | do_relocs_for (abfd, &headers, &file_cursor); | |
3492 | ||
3493 | do_linenos_for (abfd, &headers, &file_cursor); | |
3494 | ||
3495 | H_SET_FILE_MAGIC_NUMBER (&headers, COFF_MAGIC); | |
3496 | #ifndef OBJ_COFF_OMIT_TIMESTAMP | |
3497 | H_SET_TIME_STAMP (&headers, (long)time((time_t *)0)); | |
3498 | #else | |
3499 | H_SET_TIME_STAMP (&headers, 0); | |
3500 | #endif | |
3501 | #ifdef TC_COFF_SET_MACHINE | |
3502 | TC_COFF_SET_MACHINE (&headers); | |
3503 | #endif | |
3504 | ||
3505 | #ifndef COFF_FLAGS | |
3506 | #define COFF_FLAGS 0 | |
3507 | #endif | |
3508 | ||
3509 | #ifdef KEEP_RELOC_INFO | |
3510 | H_SET_FLAGS (&headers, ((H_GET_LINENO_SIZE(&headers) ? 0 : F_LNNO) | | |
3511 | COFF_FLAGS | coff_flags)); | |
3512 | #else | |
3513 | H_SET_FLAGS (&headers, ((H_GET_LINENO_SIZE(&headers) ? 0 : F_LNNO) | | |
3514 | (H_GET_RELOCATION_SIZE(&headers) ? 0 : F_RELFLG) | | |
3515 | COFF_FLAGS | coff_flags)); | |
3516 | #endif | |
3517 | ||
3518 | { | |
3519 | unsigned int symtable_size = H_GET_SYMBOL_TABLE_SIZE (&headers); | |
3520 | char *buffer1 = xmalloc (symtable_size + string_byte_count + 1); | |
3521 | ||
3522 | H_SET_SYMBOL_TABLE_POINTER (&headers, bfd_tell (abfd)); | |
3523 | w_symbols (abfd, buffer1, symbol_rootP); | |
3524 | if (string_byte_count > 0) | |
3525 | w_strings (buffer1 + symtable_size); | |
3526 | bfd_write (buffer1, 1, symtable_size + string_byte_count, abfd); | |
3527 | free (buffer1); | |
3528 | } | |
3529 | ||
3530 | coff_header_append (abfd, &headers); | |
3531 | #if 0 | |
3532 | /* Recent changes to write need this, but where it should | |
3533 | go is up to Ken.. */ | |
3534 | if (bfd_close_all_done (abfd) == false) | |
3535 | as_fatal (_("Can't close %s: %s"), out_file_name, | |
3536 | bfd_errmsg (bfd_get_error ())); | |
3537 | #else | |
3538 | { | |
3539 | extern bfd *stdoutput; | |
3540 | stdoutput = abfd; | |
3541 | } | |
3542 | #endif | |
3543 | ||
3544 | } | |
3545 | ||
3546 | /* Add a new segment. This is called from subseg_new via the | |
3547 | obj_new_segment macro. */ | |
3548 | ||
3549 | segT | |
3550 | obj_coff_add_segment (name) | |
3551 | const char *name; | |
3552 | { | |
3553 | unsigned int i; | |
3554 | ||
3555 | #ifndef COFF_LONG_SECTION_NAMES | |
3556 | char buf[SCNNMLEN + 1]; | |
3557 | ||
3558 | strncpy (buf, name, SCNNMLEN); | |
3559 | buf[SCNNMLEN] = '\0'; | |
3560 | name = buf; | |
3561 | #endif | |
3562 | ||
3563 | for (i = SEG_E0; i < SEG_LAST && segment_info[i].scnhdr.s_name[0]; i++) | |
3564 | if (strcmp (name, segment_info[i].name) == 0) | |
3565 | return (segT) i; | |
3566 | ||
3567 | if (i == SEG_LAST) | |
3568 | { | |
3569 | as_bad (_("Too many new sections; can't add \"%s\""), name); | |
3570 | return now_seg; | |
3571 | } | |
3572 | ||
3573 | /* Add a new section. */ | |
3574 | strncpy (segment_info[i].scnhdr.s_name, name, | |
3575 | sizeof (segment_info[i].scnhdr.s_name)); | |
3576 | segment_info[i].scnhdr.s_flags = STYP_REG; | |
3577 | segment_info[i].name = xstrdup (name); | |
3578 | ||
3579 | return (segT) i; | |
3580 | } | |
3581 | ||
3582 | /* | |
3583 | * implement the .section pseudo op: | |
3584 | * .section name {, "flags"} | |
3585 | * ^ ^ | |
3586 | * | +--- optional flags: 'b' for bss | |
3587 | * | 'i' for info | |
3588 | * +-- section name 'l' for lib | |
3589 | * 'n' for noload | |
3590 | * 'o' for over | |
3591 | * 'w' for data | |
3592 | * 'd' (apparently m88k for data) | |
3593 | * 'x' for text | |
3594 | * 'r' for read-only data | |
3595 | * But if the argument is not a quoted string, treat it as a | |
3596 | * subsegment number. | |
3597 | */ | |
3598 | ||
3599 | void | |
3600 | obj_coff_section (ignore) | |
a04b544b | 3601 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3602 | { |
3603 | /* Strip out the section name */ | |
3604 | char *section_name, *name; | |
3605 | char c; | |
3606 | unsigned int exp; | |
3607 | long flags; | |
3608 | ||
3609 | if (flag_mri) | |
3610 | { | |
3611 | char type; | |
3612 | ||
3613 | s_mri_sect (&type); | |
3614 | flags = 0; | |
3615 | if (type == 'C') | |
3616 | flags = STYP_TEXT; | |
3617 | else if (type == 'D') | |
3618 | flags = STYP_DATA; | |
3619 | segment_info[now_seg].scnhdr.s_flags |= flags; | |
3620 | ||
3621 | return; | |
3622 | } | |
3623 | ||
3624 | section_name = input_line_pointer; | |
3625 | c = get_symbol_end (); | |
3626 | ||
3627 | name = xmalloc (input_line_pointer - section_name + 1); | |
3628 | strcpy (name, section_name); | |
3629 | ||
3630 | *input_line_pointer = c; | |
3631 | ||
3632 | exp = 0; | |
3633 | flags = 0; | |
3634 | ||
3635 | SKIP_WHITESPACE (); | |
3636 | if (*input_line_pointer == ',') | |
3637 | { | |
3638 | ++input_line_pointer; | |
3639 | SKIP_WHITESPACE (); | |
3640 | ||
3641 | if (*input_line_pointer != '"') | |
3642 | exp = get_absolute_expression (); | |
3643 | else | |
3644 | { | |
3645 | ++input_line_pointer; | |
3646 | while (*input_line_pointer != '"' | |
3647 | && ! is_end_of_line[(unsigned char) *input_line_pointer]) | |
3648 | { | |
3649 | switch (*input_line_pointer) | |
3650 | { | |
3651 | case 'b': flags |= STYP_BSS; break; | |
3652 | case 'i': flags |= STYP_INFO; break; | |
3653 | case 'l': flags |= STYP_LIB; break; | |
3654 | case 'n': flags |= STYP_NOLOAD; break; | |
3655 | case 'o': flags |= STYP_OVER; break; | |
3656 | case 'd': | |
3657 | case 'w': flags |= STYP_DATA; break; | |
3658 | case 'x': flags |= STYP_TEXT; break; | |
3659 | case 'r': flags |= STYP_LIT; break; | |
3660 | default: | |
3661 | as_warn(_("unknown section attribute '%c'"), | |
3662 | *input_line_pointer); | |
3663 | break; | |
3664 | } | |
3665 | ++input_line_pointer; | |
3666 | } | |
3667 | if (*input_line_pointer == '"') | |
3668 | ++input_line_pointer; | |
3669 | } | |
3670 | } | |
3671 | ||
3672 | subseg_new (name, (subsegT) exp); | |
3673 | ||
3674 | segment_info[now_seg].scnhdr.s_flags |= flags; | |
3675 | ||
3676 | demand_empty_rest_of_line (); | |
3677 | } | |
3678 | ||
3679 | ||
3680 | static void | |
3681 | obj_coff_text (ignore) | |
a04b544b | 3682 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3683 | { |
3684 | subseg_new (".text", get_absolute_expression ()); | |
3685 | } | |
3686 | ||
3687 | ||
3688 | static void | |
3689 | obj_coff_data (ignore) | |
a04b544b | 3690 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3691 | { |
3692 | if (flag_readonly_data_in_text) | |
3693 | subseg_new (".text", get_absolute_expression () + 1000); | |
3694 | else | |
3695 | subseg_new (".data", get_absolute_expression ()); | |
3696 | } | |
3697 | ||
3698 | static void | |
3699 | obj_coff_ident (ignore) | |
a04b544b | 3700 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3701 | { |
3702 | segT current_seg = now_seg; /* save current seg */ | |
3703 | subsegT current_subseg = now_subseg; | |
3704 | subseg_new (".comment", 0); /* .comment seg */ | |
3705 | stringer (1); /* read string */ | |
3706 | subseg_set (current_seg, current_subseg); /* restore current seg */ | |
3707 | } | |
3708 | ||
3709 | void | |
3710 | c_symbol_merge (debug, normal) | |
3711 | symbolS *debug; | |
3712 | symbolS *normal; | |
3713 | { | |
3714 | S_SET_DATA_TYPE (normal, S_GET_DATA_TYPE (debug)); | |
3715 | S_SET_STORAGE_CLASS (normal, S_GET_STORAGE_CLASS (debug)); | |
3716 | ||
3717 | if (S_GET_NUMBER_AUXILIARY (debug) > S_GET_NUMBER_AUXILIARY (normal)) | |
3718 | { | |
3719 | S_SET_NUMBER_AUXILIARY (normal, S_GET_NUMBER_AUXILIARY (debug)); | |
3720 | } /* take the most we have */ | |
3721 | ||
3722 | if (S_GET_NUMBER_AUXILIARY (debug) > 0) | |
3723 | { | |
3724 | memcpy ((char *) &normal->sy_symbol.ost_auxent[0], | |
3725 | (char *) &debug->sy_symbol.ost_auxent[0], | |
3726 | (unsigned int) (S_GET_NUMBER_AUXILIARY (debug) * AUXESZ)); | |
3727 | } /* Move all the auxiliary information */ | |
3728 | ||
3729 | /* Move the debug flags. */ | |
3730 | SF_SET_DEBUG_FIELD (normal, SF_GET_DEBUG_FIELD (debug)); | |
3731 | } /* c_symbol_merge() */ | |
3732 | ||
3733 | static int | |
3734 | c_line_new (symbol, paddr, line_number, frag) | |
3735 | symbolS * symbol; | |
3736 | long paddr; | |
3737 | int line_number; | |
3738 | fragS * frag; | |
3739 | { | |
3740 | struct lineno_list *new_line = | |
3741 | (struct lineno_list *) xmalloc (sizeof (struct lineno_list)); | |
3742 | ||
3743 | segment_info_type *s = segment_info + now_seg; | |
3744 | new_line->line.l_lnno = line_number; | |
3745 | ||
3746 | if (line_number == 0) | |
3747 | { | |
3748 | last_line_symbol = symbol; | |
3749 | new_line->line.l_addr.l_symndx = (long) symbol; | |
3750 | } | |
3751 | else | |
3752 | { | |
3753 | new_line->line.l_addr.l_paddr = paddr; | |
3754 | } | |
3755 | ||
3756 | new_line->frag = (char *) frag; | |
3757 | new_line->next = (struct lineno_list *) NULL; | |
3758 | ||
3759 | ||
3760 | if (s->lineno_list_head == (struct lineno_list *) NULL) | |
3761 | { | |
3762 | s->lineno_list_head = new_line; | |
3763 | } | |
3764 | else | |
3765 | { | |
3766 | s->lineno_list_tail->next = new_line; | |
3767 | } | |
3768 | s->lineno_list_tail = new_line; | |
3769 | return LINESZ * s->scnhdr.s_nlnno++; | |
3770 | } | |
3771 | ||
3772 | void | |
3773 | c_dot_file_symbol (filename) | |
3774 | char *filename; | |
3775 | { | |
3776 | symbolS *symbolP; | |
3777 | ||
3778 | symbolP = symbol_new (".file", | |
3779 | SEG_DEBUG, | |
3780 | 0, | |
3781 | &zero_address_frag); | |
3782 | ||
3783 | S_SET_STORAGE_CLASS (symbolP, C_FILE); | |
3784 | S_SET_NUMBER_AUXILIARY (symbolP, 1); | |
3785 | ||
3786 | if (strlen (filename) > FILNMLEN) | |
3787 | { | |
3788 | /* Filename is too long to fit into an auxent, | |
3789 | we stick it into the string table instead. We keep | |
3790 | a linked list of the filenames we find so we can emit | |
3791 | them later.*/ | |
3792 | struct filename_list *f = ((struct filename_list *) | |
3793 | xmalloc (sizeof (struct filename_list))); | |
3794 | ||
3795 | f->filename = filename; | |
3796 | f->next = 0; | |
3797 | ||
3798 | SA_SET_FILE_FNAME_ZEROS (symbolP, 0); | |
3799 | SA_SET_FILE_FNAME_OFFSET (symbolP, 1); | |
3800 | ||
3801 | if (filename_list_tail) | |
3802 | filename_list_tail->next = f; | |
3803 | else | |
3804 | filename_list_head = f; | |
3805 | filename_list_tail = f; | |
3806 | } | |
3807 | else | |
3808 | { | |
3809 | SA_SET_FILE_FNAME (symbolP, filename); | |
3810 | } | |
3811 | #ifndef NO_LISTING | |
3812 | { | |
3813 | extern int listing; | |
3814 | if (listing) | |
3815 | { | |
3816 | listing_source_file (filename); | |
3817 | } | |
3818 | ||
3819 | } | |
3820 | ||
3821 | #endif | |
3822 | SF_SET_DEBUG (symbolP); | |
3823 | S_SET_VALUE (symbolP, (valueT) previous_file_symbol); | |
3824 | ||
3825 | previous_file_symbol = symbolP; | |
3826 | ||
3827 | /* Make sure that the symbol is first on the symbol chain */ | |
3828 | if (symbol_rootP != symbolP) | |
3829 | { | |
3830 | symbol_remove (symbolP, &symbol_rootP, &symbol_lastP); | |
3831 | symbol_insert (symbolP, symbol_rootP, &symbol_rootP, &symbol_lastP); | |
3832 | } | |
3833 | } /* c_dot_file_symbol() */ | |
3834 | ||
3835 | /* | |
3836 | * Build a 'section static' symbol. | |
3837 | */ | |
3838 | ||
3839 | symbolS * | |
3840 | c_section_symbol (name, idx) | |
3841 | char *name; | |
3842 | int idx; | |
3843 | { | |
3844 | symbolS *symbolP; | |
3845 | ||
3846 | symbolP = symbol_find_base (name, DO_NOT_STRIP); | |
3847 | if (symbolP == NULL) | |
3848 | symbolP = symbol_new (name, idx, 0, &zero_address_frag); | |
3849 | else | |
3850 | { | |
3851 | /* Mmmm. I just love violating interfaces. Makes me feel...dirty. */ | |
3852 | S_SET_SEGMENT (symbolP, idx); | |
3853 | symbolP->sy_frag = &zero_address_frag; | |
3854 | } | |
3855 | ||
3856 | S_SET_STORAGE_CLASS (symbolP, C_STAT); | |
3857 | S_SET_NUMBER_AUXILIARY (symbolP, 1); | |
3858 | ||
3859 | SF_SET_STATICS (symbolP); | |
3860 | ||
3861 | #ifdef TE_DELTA | |
3862 | /* manfred@s-direktnet.de: section symbols *must* have the LOCAL bit cleared, | |
3863 | which is set by the new definition of LOCAL_LABEL in tc-m68k.h. */ | |
3864 | SF_CLEAR_LOCAL (symbolP); | |
3865 | #endif | |
3866 | #ifdef TE_PE | |
3867 | /* If the .linkonce pseudo-op was used for this section, we must | |
3868 | store the information in the auxiliary entry for the section | |
3869 | symbol. */ | |
3870 | if (segment_info[idx].linkonce != LINKONCE_UNSET) | |
3871 | { | |
3872 | int type; | |
3873 | ||
3874 | switch (segment_info[idx].linkonce) | |
3875 | { | |
3876 | default: | |
3877 | abort (); | |
3878 | case LINKONCE_DISCARD: | |
3879 | type = IMAGE_COMDAT_SELECT_ANY; | |
3880 | break; | |
3881 | case LINKONCE_ONE_ONLY: | |
3882 | type = IMAGE_COMDAT_SELECT_NODUPLICATES; | |
3883 | break; | |
3884 | case LINKONCE_SAME_SIZE: | |
3885 | type = IMAGE_COMDAT_SELECT_SAME_SIZE; | |
3886 | break; | |
3887 | case LINKONCE_SAME_CONTENTS: | |
3888 | type = IMAGE_COMDAT_SELECT_EXACT_MATCH; | |
3889 | break; | |
3890 | } | |
3891 | ||
3892 | SYM_AUXENT (symbolP)->x_scn.x_comdat = type; | |
3893 | } | |
3894 | #endif /* TE_PE */ | |
3895 | ||
3896 | return symbolP; | |
3897 | } /* c_section_symbol() */ | |
3898 | ||
3899 | static void | |
3900 | w_symbols (abfd, where, symbol_rootP) | |
3901 | bfd * abfd; | |
3902 | char *where; | |
3903 | symbolS * symbol_rootP; | |
3904 | { | |
3905 | symbolS *symbolP; | |
3906 | unsigned int i; | |
3907 | ||
3908 | /* First fill in those values we have only just worked out */ | |
3909 | for (i = SEG_E0; i < SEG_LAST; i++) | |
3910 | { | |
3911 | symbolP = segment_info[i].dot; | |
3912 | if (symbolP) | |
3913 | { | |
3914 | SA_SET_SCN_SCNLEN (symbolP, segment_info[i].scnhdr.s_size); | |
3915 | SA_SET_SCN_NRELOC (symbolP, segment_info[i].scnhdr.s_nreloc); | |
3916 | SA_SET_SCN_NLINNO (symbolP, segment_info[i].scnhdr.s_nlnno); | |
3917 | } | |
3918 | } | |
3919 | ||
3920 | /* | |
3921 | * Emit all symbols left in the symbol chain. | |
3922 | */ | |
3923 | for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next (symbolP)) | |
3924 | { | |
3925 | /* Used to save the offset of the name. It is used to point | |
3926 | to the string in memory but must be a file offset. */ | |
3927 | register char *temp; | |
3928 | ||
3929 | /* We can't fix the lnnoptr field in yank_symbols with the other | |
3930 | adjustments, because we have to wait until we know where they | |
3931 | go in the file. */ | |
3932 | if (SF_GET_ADJ_LNNOPTR (symbolP)) | |
3933 | { | |
3934 | SA_GET_SYM_LNNOPTR (symbolP) += | |
3935 | segment_info[S_GET_SEGMENT (symbolP)].scnhdr.s_lnnoptr; | |
3936 | } | |
3937 | ||
3938 | tc_coff_symbol_emit_hook (symbolP); | |
3939 | ||
3940 | temp = S_GET_NAME (symbolP); | |
3941 | if (SF_GET_STRING (symbolP)) | |
3942 | { | |
3943 | S_SET_OFFSET (symbolP, symbolP->sy_name_offset); | |
3944 | S_SET_ZEROES (symbolP, 0); | |
3945 | } | |
3946 | else | |
3947 | { | |
3948 | memset (symbolP->sy_symbol.ost_entry.n_name, 0, SYMNMLEN); | |
3949 | strncpy (symbolP->sy_symbol.ost_entry.n_name, temp, SYMNMLEN); | |
3950 | } | |
3951 | where = symbol_to_chars (abfd, where, symbolP); | |
3952 | S_SET_NAME (symbolP, temp); | |
3953 | } | |
3954 | ||
3955 | } /* w_symbols() */ | |
3956 | ||
3957 | static void | |
3958 | obj_coff_lcomm (ignore) | |
a04b544b | 3959 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3960 | { |
3961 | s_lcomm(0); | |
3962 | return; | |
3963 | #if 0 | |
3964 | char *name; | |
3965 | char c; | |
3966 | int temp; | |
3967 | char *p; | |
3968 | ||
3969 | symbolS *symbolP; | |
3970 | ||
3971 | name = input_line_pointer; | |
3972 | ||
3973 | c = get_symbol_end (); | |
3974 | p = input_line_pointer; | |
3975 | *p = c; | |
3976 | SKIP_WHITESPACE (); | |
3977 | if (*input_line_pointer != ',') | |
3978 | { | |
3979 | as_bad (_("Expected comma after name")); | |
3980 | ignore_rest_of_line (); | |
3981 | return; | |
3982 | } | |
3983 | if (*input_line_pointer == '\n') | |
3984 | { | |
3985 | as_bad (_("Missing size expression")); | |
3986 | return; | |
3987 | } | |
3988 | input_line_pointer++; | |
3989 | if ((temp = get_absolute_expression ()) < 0) | |
3990 | { | |
3991 | as_warn (_("lcomm length (%d.) <0! Ignored."), temp); | |
3992 | ignore_rest_of_line (); | |
3993 | return; | |
3994 | } | |
3995 | *p = 0; | |
3996 | ||
3997 | symbolP = symbol_find_or_make(name); | |
3998 | ||
3999 | if (S_GET_SEGMENT(symbolP) == SEG_UNKNOWN && | |
4000 | S_GET_VALUE(symbolP) == 0) | |
4001 | { | |
4002 | if (! need_pass_2) | |
4003 | { | |
4004 | char *p; | |
4005 | segT current_seg = now_seg; /* save current seg */ | |
4006 | subsegT current_subseg = now_subseg; | |
4007 | ||
4008 | subseg_set (SEG_E2, 1); | |
4009 | symbolP->sy_frag = frag_now; | |
4010 | p = frag_var(rs_org, 1, 1, (relax_substateT)0, symbolP, | |
4011 | (offsetT) temp, (char *) 0); | |
4012 | *p = 0; | |
4013 | subseg_set (current_seg, current_subseg); /* restore current seg */ | |
4014 | S_SET_SEGMENT(symbolP, SEG_E2); | |
4015 | S_SET_STORAGE_CLASS(symbolP, C_STAT); | |
4016 | } | |
4017 | } | |
4018 | else | |
4019 | as_bad(_("Symbol %s already defined"), name); | |
4020 | ||
4021 | demand_empty_rest_of_line(); | |
4022 | #endif | |
4023 | } | |
4024 | ||
4025 | static void | |
4026 | fixup_mdeps (frags, h, this_segment) | |
4027 | fragS * frags; | |
4028 | object_headers * h; | |
4029 | segT this_segment; | |
4030 | { | |
4031 | subseg_change (this_segment, 0); | |
4032 | while (frags) | |
4033 | { | |
4034 | switch (frags->fr_type) | |
4035 | { | |
4036 | case rs_align: | |
4037 | case rs_align_code: | |
4038 | case rs_org: | |
4039 | #ifdef HANDLE_ALIGN | |
4040 | HANDLE_ALIGN (frags); | |
4041 | #endif | |
4042 | frags->fr_type = rs_fill; | |
4043 | frags->fr_offset = | |
4044 | ((frags->fr_next->fr_address - frags->fr_address - frags->fr_fix) | |
4045 | / frags->fr_var); | |
4046 | break; | |
4047 | case rs_machine_dependent: | |
4048 | md_convert_frag (h, this_segment, frags); | |
4049 | frag_wane (frags); | |
4050 | break; | |
4051 | default: | |
4052 | ; | |
4053 | } | |
4054 | frags = frags->fr_next; | |
4055 | } | |
4056 | } | |
4057 | ||
4058 | #if 1 | |
4059 | ||
4060 | #ifndef TC_FORCE_RELOCATION | |
4061 | #define TC_FORCE_RELOCATION(fix) 0 | |
4062 | #endif | |
4063 | ||
4064 | static void | |
4065 | fixup_segment (segP, this_segment_type) | |
4066 | segment_info_type * segP; | |
4067 | segT this_segment_type; | |
4068 | { | |
4069 | register fixS * fixP; | |
4070 | register symbolS *add_symbolP; | |
4071 | register symbolS *sub_symbolP; | |
4072 | long add_number; | |
4073 | register int size; | |
4074 | register char *place; | |
4075 | register long where; | |
4076 | register char pcrel; | |
4077 | register fragS *fragP; | |
4078 | register segT add_symbol_segment = absolute_section; | |
4079 | ||
4080 | for (fixP = segP->fix_root; fixP; fixP = fixP->fx_next) | |
4081 | { | |
4082 | fragP = fixP->fx_frag; | |
4083 | know (fragP); | |
4084 | where = fixP->fx_where; | |
4085 | place = fragP->fr_literal + where; | |
4086 | size = fixP->fx_size; | |
4087 | add_symbolP = fixP->fx_addsy; | |
4088 | sub_symbolP = fixP->fx_subsy; | |
4089 | add_number = fixP->fx_offset; | |
4090 | pcrel = fixP->fx_pcrel; | |
4091 | ||
4092 | /* We want function-relative stabs to work on systems which | |
4093 | may use a relaxing linker; thus we must handle the sym1-sym2 | |
4094 | fixups function-relative stabs generates. | |
4095 | ||
4096 | Of course, if you actually enable relaxing in the linker, the | |
4097 | line and block scoping information is going to be incorrect | |
4098 | in some cases. The only way to really fix this is to support | |
4099 | a reloc involving the difference of two symbols. */ | |
4100 | if (linkrelax | |
4101 | && (!sub_symbolP || pcrel)) | |
4102 | continue; | |
4103 | ||
4104 | #ifdef TC_I960 | |
4105 | if (fixP->fx_tcbit && SF_GET_CALLNAME (add_symbolP)) | |
4106 | { | |
4107 | /* Relocation should be done via the associated 'bal' entry | |
4108 | point symbol. */ | |
4109 | ||
4110 | if (!SF_GET_BALNAME (tc_get_bal_of_call (add_symbolP))) | |
4111 | { | |
4112 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
4113 | _("No 'bal' entry point for leafproc %s"), | |
4114 | S_GET_NAME (add_symbolP)); | |
4115 | continue; | |
4116 | } | |
4117 | fixP->fx_addsy = add_symbolP = tc_get_bal_of_call (add_symbolP); | |
4118 | } | |
4119 | #endif | |
4120 | ||
4121 | /* Make sure the symbols have been resolved; this may not have | |
4122 | happened if these are expression symbols. */ | |
4123 | if (add_symbolP != NULL && ! add_symbolP->sy_resolved) | |
4124 | resolve_symbol_value (add_symbolP, 1); | |
4125 | ||
4126 | if (add_symbolP != NULL) | |
4127 | { | |
4128 | /* If this fixup is against a symbol which has been equated | |
4129 | to another symbol, convert it to the other symbol. */ | |
4130 | if (add_symbolP->sy_value.X_op == O_symbol | |
4131 | && (! S_IS_DEFINED (add_symbolP) | |
4132 | || S_IS_COMMON (add_symbolP))) | |
4133 | { | |
4134 | while (add_symbolP->sy_value.X_op == O_symbol | |
4135 | && (! S_IS_DEFINED (add_symbolP) | |
4136 | || S_IS_COMMON (add_symbolP))) | |
4137 | { | |
4138 | symbolS *n; | |
4139 | ||
4140 | /* We must avoid looping, as that can occur with a | |
4141 | badly written program. */ | |
4142 | n = add_symbolP->sy_value.X_add_symbol; | |
4143 | if (n == add_symbolP) | |
4144 | break; | |
4145 | add_number += add_symbolP->sy_value.X_add_number; | |
4146 | add_symbolP = n; | |
4147 | } | |
4148 | fixP->fx_addsy = add_symbolP; | |
4149 | fixP->fx_offset = add_number; | |
4150 | } | |
4151 | } | |
4152 | ||
4153 | if (sub_symbolP != NULL && ! sub_symbolP->sy_resolved) | |
4154 | resolve_symbol_value (sub_symbolP, 1); | |
4155 | ||
4156 | if (add_symbolP != NULL | |
4157 | && add_symbolP->sy_mri_common) | |
4158 | { | |
4159 | know (add_symbolP->sy_value.X_op == O_symbol); | |
4160 | add_number += S_GET_VALUE (add_symbolP); | |
4161 | fixP->fx_offset = add_number; | |
4162 | add_symbolP = fixP->fx_addsy = add_symbolP->sy_value.X_add_symbol; | |
4163 | } | |
4164 | ||
4165 | if (add_symbolP) | |
4166 | { | |
4167 | add_symbol_segment = S_GET_SEGMENT (add_symbolP); | |
4168 | } /* if there is an addend */ | |
4169 | ||
4170 | if (sub_symbolP) | |
4171 | { | |
4172 | if (add_symbolP == NULL || add_symbol_segment == absolute_section) | |
4173 | { | |
4174 | if (add_symbolP != NULL) | |
4175 | { | |
4176 | add_number += S_GET_VALUE (add_symbolP); | |
4177 | add_symbolP = NULL; | |
4178 | fixP->fx_addsy = NULL; | |
4179 | } | |
4180 | ||
4181 | /* It's just -sym. */ | |
4182 | if (S_GET_SEGMENT (sub_symbolP) == absolute_section) | |
4183 | { | |
4184 | add_number -= S_GET_VALUE (sub_symbolP); | |
4185 | fixP->fx_subsy = 0; | |
4186 | fixP->fx_done = 1; | |
4187 | } | |
4188 | else | |
4189 | { | |
4190 | #ifndef TC_M68K | |
4191 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
4192 | _("Negative of non-absolute symbol %s"), | |
4193 | S_GET_NAME (sub_symbolP)); | |
4194 | #endif | |
4195 | add_number -= S_GET_VALUE (sub_symbolP); | |
4196 | } /* not absolute */ | |
4197 | ||
4198 | /* if sub_symbol is in the same segment that add_symbol | |
4199 | and add_symbol is either in DATA, TEXT, BSS or ABSOLUTE */ | |
4200 | } | |
4201 | else if (S_GET_SEGMENT (sub_symbolP) == add_symbol_segment | |
4202 | && SEG_NORMAL (add_symbol_segment)) | |
4203 | { | |
4204 | /* Difference of 2 symbols from same segment. Can't | |
4205 | make difference of 2 undefineds: 'value' means | |
4206 | something different for N_UNDF. */ | |
4207 | #ifdef TC_I960 | |
4208 | /* Makes no sense to use the difference of 2 arbitrary symbols | |
4209 | as the target of a call instruction. */ | |
4210 | if (fixP->fx_tcbit) | |
4211 | { | |
4212 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
4213 | _("callj to difference of 2 symbols")); | |
4214 | } | |
4215 | #endif /* TC_I960 */ | |
4216 | add_number += S_GET_VALUE (add_symbolP) - | |
4217 | S_GET_VALUE (sub_symbolP); | |
4218 | add_symbolP = NULL; | |
4219 | ||
4220 | if (!TC_FORCE_RELOCATION (fixP)) | |
4221 | { | |
4222 | fixP->fx_addsy = NULL; | |
4223 | fixP->fx_subsy = NULL; | |
4224 | fixP->fx_done = 1; | |
4225 | #ifdef TC_M68K /* is this right? */ | |
4226 | pcrel = 0; | |
4227 | fixP->fx_pcrel = 0; | |
4228 | #endif | |
4229 | } | |
4230 | } | |
4231 | else | |
4232 | { | |
4233 | /* Different segments in subtraction. */ | |
4234 | know (!(S_IS_EXTERNAL (sub_symbolP) && (S_GET_SEGMENT (sub_symbolP) == absolute_section))); | |
4235 | ||
4236 | if ((S_GET_SEGMENT (sub_symbolP) == absolute_section)) | |
4237 | { | |
4238 | add_number -= S_GET_VALUE (sub_symbolP); | |
4239 | } | |
4240 | #ifdef DIFF_EXPR_OK | |
4241 | else if (S_GET_SEGMENT (sub_symbolP) == this_segment_type | |
4242 | #if 0 /* Okay for 68k, at least... */ | |
4243 | && !pcrel | |
4244 | #endif | |
4245 | ) | |
4246 | { | |
4247 | /* Make it pc-relative. */ | |
4248 | add_number += (md_pcrel_from (fixP) | |
4249 | - S_GET_VALUE (sub_symbolP)); | |
4250 | pcrel = 1; | |
4251 | fixP->fx_pcrel = 1; | |
4252 | sub_symbolP = 0; | |
4253 | fixP->fx_subsy = 0; | |
4254 | } | |
4255 | #endif | |
4256 | else | |
4257 | { | |
4258 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
4259 | _("Can't emit reloc {- %s-seg symbol \"%s\"} @ file address %ld."), | |
4260 | segment_name (S_GET_SEGMENT (sub_symbolP)), | |
4261 | S_GET_NAME (sub_symbolP), | |
4262 | (long) (fragP->fr_address + where)); | |
4263 | } /* if absolute */ | |
4264 | } | |
4265 | } /* if sub_symbolP */ | |
4266 | ||
4267 | if (add_symbolP) | |
4268 | { | |
4269 | if (add_symbol_segment == this_segment_type && pcrel) | |
4270 | { | |
4271 | /* | |
4272 | * This fixup was made when the symbol's segment was | |
4273 | * SEG_UNKNOWN, but it is now in the local segment. | |
4274 | * So we know how to do the address without relocation. | |
4275 | */ | |
4276 | #ifdef TC_I960 | |
4277 | /* reloc_callj() may replace a 'call' with a 'calls' or a 'bal', | |
4278 | * in which cases it modifies *fixP as appropriate. In the case | |
4279 | * of a 'calls', no further work is required, and *fixP has been | |
4280 | * set up to make the rest of the code below a no-op. | |
4281 | */ | |
4282 | reloc_callj (fixP); | |
4283 | #endif /* TC_I960 */ | |
4284 | ||
4285 | add_number += S_GET_VALUE (add_symbolP); | |
4286 | add_number -= md_pcrel_from (fixP); | |
4287 | ||
4288 | /* We used to do | |
4289 | add_number -= segP->scnhdr.s_vaddr; | |
4290 | if defined (TC_I386) || defined (TE_LYNX). I now | |
4291 | think that was an error propagated from the case when | |
4292 | we are going to emit the relocation. If we are not | |
4293 | going to emit the relocation, then we just want to | |
4294 | set add_number to the difference between the symbols. | |
4295 | This is a case that would only arise when there is a | |
4296 | PC relative reference from a section other than .text | |
4297 | to a symbol defined in the same section, and the | |
4298 | reference is not relaxed. Since jump instructions on | |
4299 | the i386 are relaxed, this could only arise with a | |
4300 | call instruction. */ | |
4301 | ||
4302 | pcrel = 0; /* Lie. Don't want further pcrel processing. */ | |
4303 | if (!TC_FORCE_RELOCATION (fixP)) | |
4304 | { | |
4305 | fixP->fx_addsy = NULL; | |
4306 | fixP->fx_done = 1; | |
4307 | } | |
4308 | } | |
4309 | else | |
4310 | { | |
4311 | switch (add_symbol_segment) | |
4312 | { | |
4313 | case absolute_section: | |
4314 | #ifdef TC_I960 | |
4315 | reloc_callj (fixP); /* See comment about reloc_callj() above*/ | |
4316 | #endif /* TC_I960 */ | |
4317 | add_number += S_GET_VALUE (add_symbolP); | |
4318 | add_symbolP = NULL; | |
4319 | ||
4320 | if (!TC_FORCE_RELOCATION (fixP)) | |
4321 | { | |
4322 | fixP->fx_addsy = NULL; | |
4323 | fixP->fx_done = 1; | |
4324 | } | |
4325 | break; | |
4326 | default: | |
4327 | ||
4328 | ||
4329 | #if defined(TC_A29K) || (defined(TE_PE) && defined(TC_I386)) || defined(TC_M88K) | |
4330 | /* This really should be handled in the linker, but | |
4331 | backward compatibility forbids. */ | |
4332 | add_number += S_GET_VALUE (add_symbolP); | |
4333 | #else | |
4334 | add_number += S_GET_VALUE (add_symbolP) + | |
4335 | segment_info[S_GET_SEGMENT (add_symbolP)].scnhdr.s_paddr; | |
4336 | #endif | |
4337 | break; | |
4338 | ||
4339 | case SEG_UNKNOWN: | |
4340 | #ifdef TC_I960 | |
4341 | if ((int) fixP->fx_bit_fixP == 13) | |
4342 | { | |
4343 | /* This is a COBR instruction. They have only a | |
4344 | * 13-bit displacement and are only to be used | |
4345 | * for local branches: flag as error, don't generate | |
4346 | * relocation. | |
4347 | */ | |
4348 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
4349 | _("can't use COBR format with external label")); | |
4350 | fixP->fx_addsy = NULL; | |
4351 | fixP->fx_done = 1; | |
4352 | continue; | |
4353 | } /* COBR */ | |
4354 | #endif /* TC_I960 */ | |
4355 | #if ((defined (TC_I386) || defined (TE_LYNX) || defined (TE_AUX)) && !defined(TE_PE)) || defined (COFF_COMMON_ADDEND) | |
4356 | /* 386 COFF uses a peculiar format in which the | |
4357 | value of a common symbol is stored in the .text | |
4358 | segment (I've checked this on SVR3.2 and SCO | |
4359 | 3.2.2) Ian Taylor <ian@cygnus.com>. */ | |
4360 | /* This is also true for 68k COFF on sysv machines | |
4361 | (Checked on Motorola sysv68 R3V6 and R3V7.1, and also on | |
4362 | UNIX System V/M68000, Release 1.0 from ATT/Bell Labs) | |
4363 | Philippe De Muyter <phdm@info.ucl.ac.be>. */ | |
4364 | if (S_IS_COMMON (add_symbolP)) | |
4365 | add_number += S_GET_VALUE (add_symbolP); | |
4366 | #endif | |
4367 | break; | |
4368 | ||
4369 | ||
4370 | } /* switch on symbol seg */ | |
4371 | } /* if not in local seg */ | |
4372 | } /* if there was a + symbol */ | |
4373 | ||
4374 | if (pcrel) | |
4375 | { | |
4376 | #if !defined(TC_M88K) && !(defined(TE_PE) && defined(TC_I386)) && !defined(TC_A29K) | |
4377 | /* This adjustment is not correct on the m88k, for which the | |
4378 | linker does all the computation. */ | |
4379 | add_number -= md_pcrel_from (fixP); | |
4380 | #endif | |
4381 | if (add_symbolP == 0) | |
4382 | { | |
4383 | fixP->fx_addsy = &abs_symbol; | |
4384 | } /* if there's an add_symbol */ | |
4385 | #if defined (TC_I386) || defined (TE_LYNX) || defined (TC_I960) || defined (TC_M68K) | |
4386 | /* On the 386 we must adjust by the segment vaddr as well. | |
4387 | Ian Taylor. | |
4388 | ||
4389 | I changed the i960 to work this way as well. This is | |
4390 | compatible with the current GNU linker behaviour. I do | |
4391 | not know what other i960 COFF assemblers do. This is not | |
4392 | a common case: normally, only assembler code will contain | |
4393 | a PC relative reloc, and only branches which do not | |
4394 | originate in the .text section will have a non-zero | |
4395 | address. | |
4396 | ||
4397 | I changed the m68k to work this way as well. This will | |
4398 | break existing PC relative relocs from sections which do | |
4399 | not start at address 0, but it will make ld -r work. | |
4400 | Ian Taylor, 4 Oct 96. */ | |
4401 | ||
4402 | add_number -= segP->scnhdr.s_vaddr; | |
4403 | #endif | |
4404 | } /* if pcrel */ | |
4405 | ||
ec0f0840 AM |
4406 | #ifdef MD_APPLY_FIX3 |
4407 | md_apply_fix3 (fixP, (valueT *) &add_number, this_segment_type); | |
4408 | #else | |
4409 | md_apply_fix (fixP, add_number); | |
4410 | #endif | |
4411 | ||
252b5132 RH |
4412 | if (!fixP->fx_bit_fixP && ! fixP->fx_no_overflow) |
4413 | { | |
4414 | #ifndef TC_M88K | |
4415 | /* The m88k uses the offset field of the reloc to get around | |
4416 | this problem. */ | |
4417 | if ((size == 1 | |
4418 | && ((add_number & ~0xFF) | |
4419 | || (fixP->fx_signed && (add_number & 0x80))) | |
4420 | && ((add_number & ~0xFF) != (-1 & ~0xFF) | |
4421 | || (add_number & 0x80) == 0)) | |
4422 | || (size == 2 | |
4423 | && ((add_number & ~0xFFFF) | |
4424 | || (fixP->fx_signed && (add_number & 0x8000))) | |
4425 | && ((add_number & ~0xFFFF) != (-1 & ~0xFFFF) | |
4426 | || (add_number & 0x8000) == 0))) | |
4427 | { | |
4428 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
4429 | _("Value of %ld too large for field of %d bytes at 0x%lx"), | |
4430 | (long) add_number, size, | |
4431 | (unsigned long) (fragP->fr_address + where)); | |
4432 | } | |
4433 | #endif | |
4434 | #ifdef WARN_SIGNED_OVERFLOW_WORD | |
4435 | /* Warn if a .word value is too large when treated as a | |
4436 | signed number. We already know it is not too negative. | |
4437 | This is to catch over-large switches generated by gcc on | |
4438 | the 68k. */ | |
4439 | if (!flag_signed_overflow_ok | |
4440 | && size == 2 | |
4441 | && add_number > 0x7fff) | |
4442 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
4443 | _("Signed .word overflow; switch may be too large; %ld at 0x%lx"), | |
4444 | (long) add_number, | |
4445 | (unsigned long) (fragP->fr_address + where)); | |
4446 | #endif | |
4447 | } /* not a bit fix */ | |
252b5132 RH |
4448 | } /* For each fixS in this segment. */ |
4449 | } /* fixup_segment() */ | |
4450 | ||
4451 | #endif | |
4452 | ||
4453 | /* The first entry in a .stab section is special. */ | |
4454 | ||
4455 | void | |
4456 | obj_coff_init_stab_section (seg) | |
4457 | segT seg; | |
4458 | { | |
4459 | char *file; | |
4460 | char *p; | |
4461 | char *stabstr_name; | |
4462 | unsigned int stroff; | |
4463 | ||
4464 | /* Make space for this first symbol. */ | |
4465 | p = frag_more (12); | |
4466 | /* Zero it out. */ | |
4467 | memset (p, 0, 12); | |
4468 | as_where (&file, (unsigned int *) NULL); | |
4469 | stabstr_name = (char *) alloca (strlen (segment_info[seg].name) + 4); | |
4470 | strcpy (stabstr_name, segment_info[seg].name); | |
4471 | strcat (stabstr_name, "str"); | |
4472 | stroff = get_stab_string_offset (file, stabstr_name); | |
4473 | know (stroff == 1); | |
4474 | md_number_to_chars (p, stroff, 4); | |
4475 | } | |
4476 | ||
4477 | /* Fill in the counts in the first entry in a .stab section. */ | |
4478 | ||
4479 | static void | |
4480 | adjust_stab_section(abfd, seg) | |
4481 | bfd *abfd; | |
4482 | segT seg; | |
4483 | { | |
4484 | segT stabstrseg = SEG_UNKNOWN; | |
4485 | const char *secname, *name2; | |
4486 | char *name; | |
4487 | char *p = NULL; | |
4488 | int i, strsz = 0, nsyms; | |
4489 | fragS *frag = segment_info[seg].frchainP->frch_root; | |
4490 | ||
4491 | /* Look for the associated string table section. */ | |
4492 | ||
4493 | secname = segment_info[seg].name; | |
4494 | name = (char *) alloca (strlen (secname) + 4); | |
4495 | strcpy (name, secname); | |
4496 | strcat (name, "str"); | |
4497 | ||
4498 | for (i = SEG_E0; i < SEG_UNKNOWN; i++) | |
4499 | { | |
4500 | name2 = segment_info[i].name; | |
4501 | if (name2 != NULL && strncmp(name2, name, 8) == 0) | |
4502 | { | |
4503 | stabstrseg = i; | |
4504 | break; | |
4505 | } | |
4506 | } | |
4507 | ||
4508 | /* If we found the section, get its size. */ | |
4509 | if (stabstrseg != SEG_UNKNOWN) | |
4510 | strsz = size_section (abfd, stabstrseg); | |
4511 | ||
4512 | nsyms = size_section (abfd, seg) / 12 - 1; | |
4513 | ||
4514 | /* Look for the first frag of sufficient size for the initial stab | |
4515 | symbol, and collect a pointer to it. */ | |
4516 | while (frag && frag->fr_fix < 12) | |
4517 | frag = frag->fr_next; | |
4518 | assert (frag != 0); | |
4519 | p = frag->fr_literal; | |
4520 | assert (p != 0); | |
4521 | ||
4522 | /* Write in the number of stab symbols and the size of the string | |
4523 | table. */ | |
4524 | bfd_h_put_16 (abfd, (bfd_vma) nsyms, (bfd_byte *) p + 6); | |
4525 | bfd_h_put_32 (abfd, (bfd_vma) strsz, (bfd_byte *) p + 8); | |
4526 | } | |
4527 | ||
4528 | #endif /* not BFD_ASSEMBLER */ | |
4529 | ||
4530 | const pseudo_typeS obj_pseudo_table[] = | |
4531 | { | |
4532 | {"def", obj_coff_def, 0}, | |
4533 | {"dim", obj_coff_dim, 0}, | |
4534 | {"endef", obj_coff_endef, 0}, | |
4535 | {"line", obj_coff_line, 0}, | |
4536 | {"ln", obj_coff_ln, 0}, | |
28428223 ILT |
4537 | #ifdef BFD_ASSEMBLER |
4538 | {"loc", obj_coff_loc, 0}, | |
4539 | #endif | |
252b5132 RH |
4540 | {"appline", obj_coff_ln, 1}, |
4541 | {"scl", obj_coff_scl, 0}, | |
4542 | {"size", obj_coff_size, 0}, | |
4543 | {"tag", obj_coff_tag, 0}, | |
4544 | {"type", obj_coff_type, 0}, | |
4545 | {"val", obj_coff_val, 0}, | |
4546 | {"section", obj_coff_section, 0}, | |
4547 | {"sect", obj_coff_section, 0}, | |
4548 | /* FIXME: We ignore the MRI short attribute. */ | |
4549 | {"section.s", obj_coff_section, 0}, | |
4550 | {"sect.s", obj_coff_section, 0}, | |
4551 | /* We accept the .bss directive for backward compatibility with | |
4552 | earlier versions of gas. */ | |
4553 | {"bss", obj_coff_bss, 0}, | |
4554 | {"weak", obj_coff_weak, 0}, | |
7a6284c4 | 4555 | {"ident", obj_coff_ident, 0}, |
252b5132 RH |
4556 | #ifndef BFD_ASSEMBLER |
4557 | {"use", obj_coff_section, 0}, | |
4558 | {"text", obj_coff_text, 0}, | |
4559 | {"data", obj_coff_data, 0}, | |
4560 | {"lcomm", obj_coff_lcomm, 0}, | |
252b5132 RH |
4561 | #else |
4562 | {"optim", s_ignore, 0}, /* For sun386i cc (?) */ | |
252b5132 RH |
4563 | #endif |
4564 | {"version", s_ignore, 0}, | |
4565 | {"ABORT", s_abort, 0}, | |
4566 | #ifdef TC_M88K | |
4567 | /* The m88k uses sdef instead of def. */ | |
4568 | {"sdef", obj_coff_def, 0}, | |
4569 | #endif | |
a04b544b | 4570 | {NULL, NULL, 0} /* end sentinel */ |
252b5132 RH |
4571 | }; /* obj_pseudo_table */ |
4572 | \f | |
4573 | #ifdef BFD_ASSEMBLER | |
4574 | ||
0561a208 ILT |
4575 | static void coff_pop_insert PARAMS ((void)); |
4576 | static int coff_sec_sym_ok_for_reloc PARAMS ((asection *)); | |
4577 | ||
252b5132 RH |
4578 | /* Support for a COFF emulation. */ |
4579 | ||
4580 | static void | |
4581 | coff_pop_insert () | |
4582 | { | |
4583 | pop_insert (obj_pseudo_table); | |
4584 | } | |
4585 | ||
4586 | static int | |
4587 | coff_sec_sym_ok_for_reloc (sec) | |
c4bf532f | 4588 | asection *sec ATTRIBUTE_UNUSED; |
252b5132 RH |
4589 | { |
4590 | return 0; | |
4591 | } | |
4592 | ||
252b5132 RH |
4593 | const struct format_ops coff_format_ops = |
4594 | { | |
4595 | bfd_target_coff_flavour, | |
4596 | 0, | |
4597 | 1, | |
4598 | coff_frob_symbol, | |
4ca72d38 | 4599 | 0, |
252b5132 RH |
4600 | coff_frob_file_after_relocs, |
4601 | 0, 0, | |
4602 | 0, 0, | |
4603 | 0, | |
4604 | #if 0 | |
4605 | obj_generate_asm_lineno, | |
4606 | #else | |
4ca72d38 | 4607 | 0, |
252b5132 RH |
4608 | #endif |
4609 | #if 0 | |
4610 | obj_stab, | |
4611 | #else | |
4ca72d38 | 4612 | 0, |
252b5132 RH |
4613 | #endif |
4614 | coff_sec_sym_ok_for_reloc, | |
4615 | coff_pop_insert, | |
4616 | #if 0 | |
4617 | obj_set_ext, | |
4618 | #else | |
4ca72d38 | 4619 | 0, |
252b5132 RH |
4620 | #endif |
4621 | coff_obj_read_begin_hook, | |
4622 | coff_obj_symbol_new_hook, | |
4623 | }; | |
4624 | ||
4625 | #endif |