Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* coff object file format |
f7e42eb4 | 2 | Copyright 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, |
587aac4e | 3 | 1999, 2000, 2001, 2002, 2003, 2004 |
252b5132 RH |
4 | Free Software Foundation, Inc. |
5 | ||
6 | This file is part of GAS. | |
7 | ||
8 | GAS is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2, or (at your option) | |
11 | any later version. | |
12 | ||
13 | GAS is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GAS; see the file COPYING. If not, write to the Free | |
20 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
21 | 02111-1307, USA. */ | |
22 | ||
23 | #define OBJ_HEADER "obj-coff.h" | |
24 | ||
25 | #include "as.h" | |
26 | #include "obstack.h" | |
27 | #include "subsegs.h" | |
28 | ||
977cdf5a NC |
29 | #ifdef TE_PE |
30 | #include "coff/pe.h" | |
31 | #endif | |
32 | ||
252b5132 RH |
33 | /* I think this is probably always correct. */ |
34 | #ifndef KEEP_RELOC_INFO | |
35 | #define KEEP_RELOC_INFO | |
36 | #endif | |
37 | ||
b8a9dcab NC |
38 | /* The BFD_ASSEMBLER version of obj_coff_section will use this macro to set |
39 | a new section's attributes when a directive has no valid flags or the | |
40 | "w" flag is used. This default should be appropriate for most. */ | |
41 | #ifndef TC_COFF_SECTION_DEFAULT_ATTRIBUTES | |
42 | #define TC_COFF_SECTION_DEFAULT_ATTRIBUTES (SEC_LOAD | SEC_DATA) | |
43 | #endif | |
44 | ||
8d28c9d7 AM |
45 | /* This is used to hold the symbol built by a sequence of pseudo-ops |
46 | from .def and .endef. */ | |
47 | static symbolS *def_symbol_in_progress; | |
977cdf5a NC |
48 | #ifdef TE_PE |
49 | /* PE weak alternate symbols begin with this string. */ | |
50 | static const char weak_altprefix[] = ".weak."; | |
51 | #endif /* TE_PE */ | |
8d28c9d7 AM |
52 | |
53 | typedef struct | |
54 | { | |
55 | unsigned long chunk_size; | |
56 | unsigned long element_size; | |
57 | unsigned long size; | |
58 | char *data; | |
59 | unsigned long pointer; | |
60 | } | |
61 | stack; | |
62 | ||
63 | static stack *stack_init PARAMS ((unsigned long, unsigned long)); | |
64 | static char *stack_push PARAMS ((stack *, char *)); | |
65 | static char *stack_pop PARAMS ((stack *)); | |
66 | static void tag_init PARAMS ((void)); | |
67 | static void tag_insert PARAMS ((const char *, symbolS *)); | |
68 | static symbolS *tag_find PARAMS ((char *)); | |
69 | static symbolS *tag_find_or_make PARAMS ((char *)); | |
252b5132 | 70 | static void obj_coff_bss PARAMS ((int)); |
d9895649 | 71 | #ifdef BFD_ASSEMBLER |
8d28c9d7 | 72 | static void obj_coff_weak PARAMS ((int)); |
d9895649 | 73 | #endif |
252b5132 | 74 | const char *s_get_name PARAMS ((symbolS * s)); |
0561a208 ILT |
75 | static void obj_coff_ln PARAMS ((int)); |
76 | static void obj_coff_def PARAMS ((int)); | |
77 | static void obj_coff_endef PARAMS ((int)); | |
78 | static void obj_coff_dim PARAMS ((int)); | |
79 | static void obj_coff_line PARAMS ((int)); | |
80 | static void obj_coff_size PARAMS ((int)); | |
81 | static void obj_coff_scl PARAMS ((int)); | |
82 | static void obj_coff_tag PARAMS ((int)); | |
83 | static void obj_coff_val PARAMS ((int)); | |
84 | static void obj_coff_type PARAMS ((int)); | |
7a6284c4 | 85 | static void obj_coff_ident PARAMS ((int)); |
28428223 ILT |
86 | #ifdef BFD_ASSEMBLER |
87 | static void obj_coff_loc PARAMS((int)); | |
88 | #endif | |
252b5132 RH |
89 | \f |
90 | /* stack stuff */ | |
252b5132 RH |
91 | |
92 | static stack * | |
93 | stack_init (chunk_size, element_size) | |
94 | unsigned long chunk_size; | |
95 | unsigned long element_size; | |
96 | { | |
97 | stack *st; | |
98 | ||
99 | st = (stack *) malloc (sizeof (stack)); | |
100 | if (!st) | |
101 | return 0; | |
102 | st->data = malloc (chunk_size); | |
103 | if (!st->data) | |
104 | { | |
105 | free (st); | |
106 | return 0; | |
107 | } | |
108 | st->pointer = 0; | |
109 | st->size = chunk_size; | |
110 | st->chunk_size = chunk_size; | |
111 | st->element_size = element_size; | |
112 | return st; | |
113 | } | |
114 | ||
115 | #if 0 | |
116 | /* Not currently used. */ | |
117 | static void | |
118 | stack_delete (st) | |
119 | stack *st; | |
120 | { | |
121 | free (st->data); | |
122 | free (st); | |
123 | } | |
124 | #endif | |
125 | ||
126 | static char * | |
127 | stack_push (st, element) | |
128 | stack *st; | |
129 | char *element; | |
130 | { | |
131 | if (st->pointer + st->element_size >= st->size) | |
132 | { | |
133 | st->size += st->chunk_size; | |
134 | if ((st->data = xrealloc (st->data, st->size)) == (char *) 0) | |
135 | return (char *) 0; | |
136 | } | |
137 | memcpy (st->data + st->pointer, element, st->element_size); | |
138 | st->pointer += st->element_size; | |
139 | return st->data + st->pointer; | |
140 | } | |
141 | ||
142 | static char * | |
143 | stack_pop (st) | |
144 | stack *st; | |
145 | { | |
146 | if (st->pointer < st->element_size) | |
147 | { | |
148 | st->pointer = 0; | |
149 | return (char *) 0; | |
150 | } | |
151 | st->pointer -= st->element_size; | |
152 | return st->data + st->pointer; | |
153 | } | |
154 | \f | |
155 | /* | |
aaa2624b | 156 | * Maintain a list of the tagnames of the structures. |
252b5132 RH |
157 | */ |
158 | ||
159 | static struct hash_control *tag_hash; | |
160 | ||
161 | static void | |
162 | tag_init () | |
163 | { | |
164 | tag_hash = hash_new (); | |
165 | } | |
166 | ||
167 | static void | |
168 | tag_insert (name, symbolP) | |
169 | const char *name; | |
170 | symbolS *symbolP; | |
171 | { | |
172 | const char *error_string; | |
173 | ||
174 | if ((error_string = hash_jam (tag_hash, name, (char *) symbolP))) | |
175 | { | |
176 | as_fatal (_("Inserting \"%s\" into structure table failed: %s"), | |
177 | name, error_string); | |
178 | } | |
179 | } | |
180 | ||
181 | static symbolS * | |
182 | tag_find (name) | |
183 | char *name; | |
184 | { | |
185 | #ifdef STRIP_UNDERSCORE | |
186 | if (*name == '_') | |
187 | name++; | |
188 | #endif /* STRIP_UNDERSCORE */ | |
189 | return (symbolS *) hash_find (tag_hash, name); | |
190 | } | |
191 | ||
192 | static symbolS * | |
193 | tag_find_or_make (name) | |
194 | char *name; | |
195 | { | |
196 | symbolS *symbolP; | |
197 | ||
198 | if ((symbolP = tag_find (name)) == NULL) | |
199 | { | |
200 | symbolP = symbol_new (name, undefined_section, | |
201 | 0, &zero_address_frag); | |
202 | ||
203 | tag_insert (S_GET_NAME (symbolP), symbolP); | |
204 | #ifdef BFD_ASSEMBLER | |
205 | symbol_table_insert (symbolP); | |
206 | #endif | |
207 | } /* not found */ | |
208 | ||
209 | return symbolP; | |
210 | } | |
211 | ||
212 | /* We accept the .bss directive to set the section for backward | |
213 | compatibility with earlier versions of gas. */ | |
214 | ||
215 | static void | |
216 | obj_coff_bss (ignore) | |
a04b544b | 217 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
218 | { |
219 | if (*input_line_pointer == '\n') | |
220 | subseg_new (".bss", get_absolute_expression ()); | |
221 | else | |
222 | s_lcomm (0); | |
223 | } | |
224 | ||
252b5132 RH |
225 | #ifdef BFD_ASSEMBLER |
226 | ||
8d28c9d7 | 227 | static segT fetch_coff_debug_section PARAMS ((void)); |
252b5132 | 228 | static void SA_SET_SYM_TAGNDX PARAMS ((symbolS *, symbolS *)); |
8d28c9d7 AM |
229 | static int S_GET_DATA_TYPE PARAMS ((symbolS *)); |
230 | void c_symbol_merge PARAMS ((symbolS *, symbolS *)); | |
231 | static void add_lineno PARAMS ((fragS *, addressT, int)); | |
252b5132 RH |
232 | |
233 | #define GET_FILENAME_STRING(X) \ | |
814f6641 | 234 | ((char*) (&((X)->sy_symbol.ost_auxent->x_file.x_n.x_offset))[1]) |
252b5132 RH |
235 | |
236 | /* @@ Ick. */ | |
237 | static segT | |
238 | fetch_coff_debug_section () | |
239 | { | |
240 | static segT debug_section; | |
241 | if (!debug_section) | |
242 | { | |
5a38dc70 | 243 | const asymbol *s; |
252b5132 RH |
244 | s = bfd_make_debug_symbol (stdoutput, (char *) 0, 0); |
245 | assert (s != 0); | |
246 | debug_section = s->section; | |
247 | } | |
248 | return debug_section; | |
249 | } | |
250 | ||
251 | void | |
252 | SA_SET_SYM_ENDNDX (sym, val) | |
253 | symbolS *sym; | |
254 | symbolS *val; | |
255 | { | |
256 | combined_entry_type *entry, *p; | |
257 | ||
49309057 ILT |
258 | entry = &coffsymbol (symbol_get_bfdsym (sym))->native[1]; |
259 | p = coffsymbol (symbol_get_bfdsym (val))->native; | |
252b5132 RH |
260 | entry->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p = p; |
261 | entry->fix_end = 1; | |
262 | } | |
263 | ||
264 | static void | |
265 | SA_SET_SYM_TAGNDX (sym, val) | |
266 | symbolS *sym; | |
267 | symbolS *val; | |
268 | { | |
269 | combined_entry_type *entry, *p; | |
270 | ||
49309057 ILT |
271 | entry = &coffsymbol (symbol_get_bfdsym (sym))->native[1]; |
272 | p = coffsymbol (symbol_get_bfdsym (val))->native; | |
252b5132 RH |
273 | entry->u.auxent.x_sym.x_tagndx.p = p; |
274 | entry->fix_tag = 1; | |
275 | } | |
276 | ||
277 | static int | |
278 | S_GET_DATA_TYPE (sym) | |
279 | symbolS *sym; | |
280 | { | |
49309057 | 281 | return coffsymbol (symbol_get_bfdsym (sym))->native->u.syment.n_type; |
252b5132 RH |
282 | } |
283 | ||
284 | int | |
285 | S_SET_DATA_TYPE (sym, val) | |
286 | symbolS *sym; | |
287 | int val; | |
288 | { | |
49309057 | 289 | coffsymbol (symbol_get_bfdsym (sym))->native->u.syment.n_type = val; |
252b5132 RH |
290 | return val; |
291 | } | |
292 | ||
293 | int | |
294 | S_GET_STORAGE_CLASS (sym) | |
295 | symbolS *sym; | |
296 | { | |
49309057 | 297 | return coffsymbol (symbol_get_bfdsym (sym))->native->u.syment.n_sclass; |
252b5132 RH |
298 | } |
299 | ||
300 | int | |
301 | S_SET_STORAGE_CLASS (sym, val) | |
302 | symbolS *sym; | |
303 | int val; | |
304 | { | |
49309057 | 305 | coffsymbol (symbol_get_bfdsym (sym))->native->u.syment.n_sclass = val; |
252b5132 RH |
306 | return val; |
307 | } | |
308 | ||
dcd619be | 309 | /* Merge a debug symbol containing debug information into a normal symbol. */ |
252b5132 RH |
310 | |
311 | void | |
312 | c_symbol_merge (debug, normal) | |
313 | symbolS *debug; | |
314 | symbolS *normal; | |
315 | { | |
316 | S_SET_DATA_TYPE (normal, S_GET_DATA_TYPE (debug)); | |
317 | S_SET_STORAGE_CLASS (normal, S_GET_STORAGE_CLASS (debug)); | |
318 | ||
319 | if (S_GET_NUMBER_AUXILIARY (debug) > S_GET_NUMBER_AUXILIARY (normal)) | |
320 | { | |
321 | /* take the most we have */ | |
322 | S_SET_NUMBER_AUXILIARY (normal, S_GET_NUMBER_AUXILIARY (debug)); | |
323 | } | |
324 | ||
325 | if (S_GET_NUMBER_AUXILIARY (debug) > 0) | |
326 | { | |
327 | /* Move all the auxiliary information. */ | |
328 | memcpy (SYM_AUXINFO (normal), SYM_AUXINFO (debug), | |
329 | (S_GET_NUMBER_AUXILIARY (debug) | |
330 | * sizeof (*SYM_AUXINFO (debug)))); | |
331 | } | |
332 | ||
dcd619be | 333 | /* Move the debug flags. */ |
252b5132 RH |
334 | SF_SET_DEBUG_FIELD (normal, SF_GET_DEBUG_FIELD (debug)); |
335 | } | |
336 | ||
337 | void | |
338 | c_dot_file_symbol (filename) | |
5110c57e | 339 | const char *filename; |
252b5132 RH |
340 | { |
341 | symbolS *symbolP; | |
342 | ||
0561a208 ILT |
343 | /* BFD converts filename to a .file symbol with an aux entry. It |
344 | also handles chaining. */ | |
252b5132 RH |
345 | symbolP = symbol_new (filename, bfd_abs_section_ptr, 0, &zero_address_frag); |
346 | ||
347 | S_SET_STORAGE_CLASS (symbolP, C_FILE); | |
348 | S_SET_NUMBER_AUXILIARY (symbolP, 1); | |
349 | ||
49309057 | 350 | symbol_get_bfdsym (symbolP)->flags = BSF_DEBUGGING; |
252b5132 RH |
351 | |
352 | #ifndef NO_LISTING | |
353 | { | |
354 | extern int listing; | |
355 | if (listing) | |
356 | { | |
357 | listing_source_file (filename); | |
358 | } | |
359 | } | |
360 | #endif | |
361 | ||
362 | /* Make sure that the symbol is first on the symbol chain */ | |
363 | if (symbol_rootP != symbolP) | |
364 | { | |
365 | symbol_remove (symbolP, &symbol_rootP, &symbol_lastP); | |
366 | symbol_insert (symbolP, symbol_rootP, &symbol_rootP, &symbol_lastP); | |
367 | } /* if not first on the list */ | |
368 | } | |
369 | ||
370 | /* Line number handling */ | |
371 | ||
372 | struct line_no { | |
373 | struct line_no *next; | |
374 | fragS *frag; | |
375 | alent l; | |
376 | }; | |
377 | ||
378 | int coff_line_base; | |
379 | ||
380 | /* Symbol of last function, which we should hang line#s off of. */ | |
381 | static symbolS *line_fsym; | |
382 | ||
383 | #define in_function() (line_fsym != 0) | |
384 | #define clear_function() (line_fsym = 0) | |
385 | #define set_function(F) (line_fsym = (F), coff_add_linesym (F)) | |
386 | ||
387 | \f | |
388 | void | |
389 | coff_obj_symbol_new_hook (symbolP) | |
390 | symbolS *symbolP; | |
391 | { | |
392 | long sz = (OBJ_COFF_MAX_AUXENTRIES + 1) * sizeof (combined_entry_type); | |
393 | char * s = (char *) xmalloc (sz); | |
dcd619be | 394 | |
252b5132 | 395 | memset (s, 0, sz); |
49309057 | 396 | coffsymbol (symbol_get_bfdsym (symbolP))->native = (combined_entry_type *) s; |
252b5132 RH |
397 | |
398 | S_SET_DATA_TYPE (symbolP, T_NULL); | |
399 | S_SET_STORAGE_CLASS (symbolP, 0); | |
400 | S_SET_NUMBER_AUXILIARY (symbolP, 0); | |
401 | ||
402 | if (S_IS_STRING (symbolP)) | |
403 | SF_SET_STRING (symbolP); | |
dcd619be | 404 | |
252b5132 RH |
405 | if (S_IS_LOCAL (symbolP)) |
406 | SF_SET_LOCAL (symbolP); | |
407 | } | |
408 | ||
409 | \f | |
410 | /* | |
411 | * Handle .ln directives. | |
412 | */ | |
413 | ||
414 | static symbolS *current_lineno_sym; | |
415 | static struct line_no *line_nos; | |
416 | /* @@ Blindly assume all .ln directives will be in the .text section... */ | |
417 | int coff_n_line_nos; | |
418 | ||
419 | static void | |
420 | add_lineno (frag, offset, num) | |
421 | fragS *frag; | |
7f6d05e8 | 422 | addressT offset; |
252b5132 RH |
423 | int num; |
424 | { | |
425 | struct line_no *new_line = | |
426 | (struct line_no *) xmalloc (sizeof (struct line_no)); | |
427 | if (!current_lineno_sym) | |
428 | { | |
429 | abort (); | |
430 | } | |
6877bb43 TR |
431 | |
432 | #ifndef OBJ_XCOFF | |
433 | /* The native aix assembler accepts negative line number */ | |
434 | ||
dcd619be | 435 | if (num <= 0) |
e8a3ab75 ILT |
436 | { |
437 | /* Zero is used as an end marker in the file. */ | |
b985eaa8 ILT |
438 | as_warn (_("Line numbers must be positive integers\n")); |
439 | num = 1; | |
e8a3ab75 | 440 | } |
6877bb43 | 441 | #endif /* OBJ_XCOFF */ |
252b5132 RH |
442 | new_line->next = line_nos; |
443 | new_line->frag = frag; | |
444 | new_line->l.line_number = num; | |
445 | new_line->l.u.offset = offset; | |
446 | line_nos = new_line; | |
447 | coff_n_line_nos++; | |
448 | } | |
449 | ||
450 | void | |
451 | coff_add_linesym (sym) | |
452 | symbolS *sym; | |
453 | { | |
454 | if (line_nos) | |
455 | { | |
49309057 ILT |
456 | coffsymbol (symbol_get_bfdsym (current_lineno_sym))->lineno = |
457 | (alent *) line_nos; | |
252b5132 RH |
458 | coff_n_line_nos++; |
459 | line_nos = 0; | |
460 | } | |
461 | current_lineno_sym = sym; | |
462 | } | |
463 | ||
464 | static void | |
465 | obj_coff_ln (appline) | |
466 | int appline; | |
467 | { | |
468 | int l; | |
469 | ||
470 | if (! appline && def_symbol_in_progress != NULL) | |
471 | { | |
472 | as_warn (_(".ln pseudo-op inside .def/.endef: ignored.")); | |
473 | demand_empty_rest_of_line (); | |
474 | return; | |
475 | } | |
476 | ||
477 | l = get_absolute_expression (); | |
252b5132 | 478 | |
e237d851 NC |
479 | /* If there is no lineno symbol, treat a .ln |
480 | directive as if it were a .appline directive. */ | |
481 | if (appline || current_lineno_sym == NULL) | |
252b5132 | 482 | new_logical_line ((char *) NULL, l - 1); |
e237d851 NC |
483 | else |
484 | add_lineno (frag_now, frag_now_fix (), l); | |
252b5132 RH |
485 | |
486 | #ifndef NO_LISTING | |
487 | { | |
488 | extern int listing; | |
489 | ||
490 | if (listing) | |
491 | { | |
492 | if (! appline) | |
493 | l += coff_line_base - 1; | |
494 | listing_source_line (l); | |
495 | } | |
496 | } | |
497 | #endif | |
498 | ||
499 | demand_empty_rest_of_line (); | |
500 | } | |
501 | ||
28428223 ILT |
502 | /* .loc is essentially the same as .ln; parse it for assembler |
503 | compatibility. */ | |
504 | ||
505 | static void | |
506 | obj_coff_loc (ignore) | |
507 | int ignore ATTRIBUTE_UNUSED; | |
508 | { | |
509 | int lineno; | |
510 | ||
511 | /* FIXME: Why do we need this check? We need it for ECOFF, but why | |
512 | do we need it for COFF? */ | |
513 | if (now_seg != text_section) | |
514 | { | |
515 | as_warn (_(".loc outside of .text")); | |
516 | demand_empty_rest_of_line (); | |
517 | return; | |
518 | } | |
519 | ||
520 | if (def_symbol_in_progress != NULL) | |
521 | { | |
522 | as_warn (_(".loc pseudo-op inside .def/.endef: ignored.")); | |
523 | demand_empty_rest_of_line (); | |
524 | return; | |
525 | } | |
526 | ||
527 | /* Skip the file number. */ | |
528 | SKIP_WHITESPACE (); | |
529 | get_absolute_expression (); | |
530 | SKIP_WHITESPACE (); | |
531 | ||
532 | lineno = get_absolute_expression (); | |
533 | ||
534 | #ifndef NO_LISTING | |
535 | { | |
536 | extern int listing; | |
537 | ||
538 | if (listing) | |
539 | { | |
cc8a6dd0 | 540 | lineno += coff_line_base - 1; |
28428223 ILT |
541 | listing_source_line (lineno); |
542 | } | |
543 | } | |
544 | #endif | |
545 | ||
546 | demand_empty_rest_of_line (); | |
547 | ||
548 | add_lineno (frag_now, frag_now_fix (), lineno); | |
549 | } | |
550 | ||
7a6284c4 ILT |
551 | /* Handle the .ident pseudo-op. */ |
552 | ||
553 | static void | |
554 | obj_coff_ident (ignore) | |
555 | int ignore ATTRIBUTE_UNUSED; | |
556 | { | |
557 | segT current_seg = now_seg; | |
558 | subsegT current_subseg = now_subseg; | |
559 | ||
560 | #ifdef TE_PE | |
561 | { | |
562 | segT sec; | |
563 | ||
564 | /* We could put it in .comment, but that creates an extra section | |
565 | that shouldn't be loaded into memory, which requires linker | |
566 | changes... For now, until proven otherwise, use .rdata. */ | |
567 | sec = subseg_new (".rdata$zzz", 0); | |
568 | bfd_set_section_flags (stdoutput, sec, | |
569 | ((SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA) | |
570 | & bfd_applicable_section_flags (stdoutput))); | |
571 | } | |
572 | #else | |
573 | subseg_new (".comment", 0); | |
574 | #endif | |
575 | ||
576 | stringer (1); | |
577 | subseg_set (current_seg, current_subseg); | |
578 | } | |
579 | ||
252b5132 RH |
580 | /* |
581 | * def() | |
582 | * | |
583 | * Handle .def directives. | |
584 | * | |
585 | * One might ask : why can't we symbol_new if the symbol does not | |
586 | * already exist and fill it with debug information. Because of | |
587 | * the C_EFCN special symbol. It would clobber the value of the | |
588 | * function symbol before we have a chance to notice that it is | |
589 | * a C_EFCN. And a second reason is that the code is more clear this | |
590 | * way. (at least I think it is :-). | |
591 | * | |
592 | */ | |
593 | ||
594 | #define SKIP_SEMI_COLON() while (*input_line_pointer++ != ';') | |
595 | #define SKIP_WHITESPACES() while (*input_line_pointer == ' ' || \ | |
596 | *input_line_pointer == '\t') \ | |
597 | input_line_pointer++; | |
598 | ||
599 | static void | |
600 | obj_coff_def (what) | |
c4bf532f | 601 | int what ATTRIBUTE_UNUSED; |
252b5132 RH |
602 | { |
603 | char name_end; /* Char after the end of name */ | |
604 | char *symbol_name; /* Name of the debug symbol */ | |
605 | char *symbol_name_copy; /* Temporary copy of the name */ | |
606 | unsigned int symbol_name_length; | |
607 | ||
608 | if (def_symbol_in_progress != NULL) | |
609 | { | |
610 | as_warn (_(".def pseudo-op used inside of .def/.endef: ignored.")); | |
611 | demand_empty_rest_of_line (); | |
612 | return; | |
613 | } /* if not inside .def/.endef */ | |
614 | ||
615 | SKIP_WHITESPACES (); | |
616 | ||
617 | symbol_name = input_line_pointer; | |
618 | #ifdef STRIP_UNDERSCORE | |
619 | if (symbol_name[0] == '_' && symbol_name[1] != 0) | |
620 | symbol_name++; | |
621 | #endif /* STRIP_UNDERSCORE */ | |
622 | ||
623 | name_end = get_symbol_end (); | |
624 | symbol_name_length = strlen (symbol_name); | |
625 | symbol_name_copy = xmalloc (symbol_name_length + 1); | |
626 | strcpy (symbol_name_copy, symbol_name); | |
627 | #ifdef tc_canonicalize_symbol_name | |
628 | symbol_name_copy = tc_canonicalize_symbol_name (symbol_name_copy); | |
629 | #endif | |
630 | ||
631 | /* Initialize the new symbol */ | |
632 | def_symbol_in_progress = symbol_make (symbol_name_copy); | |
49309057 | 633 | symbol_set_frag (def_symbol_in_progress, &zero_address_frag); |
252b5132 RH |
634 | S_SET_VALUE (def_symbol_in_progress, 0); |
635 | ||
636 | if (S_IS_STRING (def_symbol_in_progress)) | |
637 | SF_SET_STRING (def_symbol_in_progress); | |
638 | ||
639 | *input_line_pointer = name_end; | |
640 | ||
641 | demand_empty_rest_of_line (); | |
642 | } | |
643 | ||
644 | unsigned int dim_index; | |
645 | ||
646 | static void | |
647 | obj_coff_endef (ignore) | |
c4bf532f | 648 | int ignore ATTRIBUTE_UNUSED; |
252b5132 | 649 | { |
c9900432 | 650 | symbolS *symbolP = NULL; |
252b5132 RH |
651 | |
652 | /* DIM BUG FIX sac@cygnus.com */ | |
653 | dim_index = 0; | |
654 | if (def_symbol_in_progress == NULL) | |
655 | { | |
656 | as_warn (_(".endef pseudo-op used outside of .def/.endef: ignored.")); | |
657 | demand_empty_rest_of_line (); | |
658 | return; | |
659 | } /* if not inside .def/.endef */ | |
660 | ||
dcd619be | 661 | /* Set the section number according to storage class. */ |
252b5132 RH |
662 | switch (S_GET_STORAGE_CLASS (def_symbol_in_progress)) |
663 | { | |
664 | case C_STRTAG: | |
665 | case C_ENTAG: | |
666 | case C_UNTAG: | |
667 | SF_SET_TAG (def_symbol_in_progress); | |
668 | /* intentional fallthrough */ | |
669 | case C_FILE: | |
670 | case C_TPDEF: | |
671 | SF_SET_DEBUG (def_symbol_in_progress); | |
672 | S_SET_SEGMENT (def_symbol_in_progress, fetch_coff_debug_section ()); | |
673 | break; | |
674 | ||
675 | case C_EFCN: | |
dcd619be | 676 | SF_SET_LOCAL (def_symbol_in_progress); /* Do not emit this symbol. */ |
252b5132 RH |
677 | /* intentional fallthrough */ |
678 | case C_BLOCK: | |
679 | SF_SET_PROCESS (def_symbol_in_progress); /* Will need processing before writing */ | |
680 | /* intentional fallthrough */ | |
681 | case C_FCN: | |
682 | { | |
5a38dc70 | 683 | const char *name; |
252b5132 RH |
684 | S_SET_SEGMENT (def_symbol_in_progress, text_section); |
685 | ||
49309057 | 686 | name = S_GET_NAME (def_symbol_in_progress); |
23dab925 | 687 | if (name[0] == '.' && name[2] == 'f' && name[3] == '\0') |
cc8a6dd0 | 688 | { |
23dab925 ILT |
689 | switch (name[1]) |
690 | { | |
dcd619be | 691 | case 'b': |
23dab925 ILT |
692 | /* .bf */ |
693 | if (! in_function ()) | |
694 | as_warn (_("`%s' symbol without preceding function"), name); | |
695 | /* Will need relocating. */ | |
696 | SF_SET_PROCESS (def_symbol_in_progress); | |
697 | clear_function (); | |
698 | break; | |
699 | #ifdef TE_PE | |
dcd619be | 700 | case 'e': |
23dab925 ILT |
701 | /* .ef */ |
702 | /* The MS compilers output the actual endline, not the | |
703 | function-relative one... we want to match without | |
704 | changing the assembler input. */ | |
dcd619be | 705 | SA_SET_SYM_LNNO (def_symbol_in_progress, |
23dab925 ILT |
706 | (SA_GET_SYM_LNNO (def_symbol_in_progress) |
707 | + coff_line_base)); | |
708 | break; | |
709 | #endif | |
710 | } | |
252b5132 RH |
711 | } |
712 | } | |
713 | break; | |
714 | ||
715 | #ifdef C_AUTOARG | |
716 | case C_AUTOARG: | |
717 | #endif /* C_AUTOARG */ | |
718 | case C_AUTO: | |
719 | case C_REG: | |
720 | case C_ARG: | |
721 | case C_REGPARM: | |
722 | case C_FIELD: | |
56385375 L |
723 | |
724 | /* According to the COFF documentation: | |
725 | ||
726 | http://osr5doc.sco.com:1996/topics/COFF_SectNumFld.html | |
727 | ||
728 | A special section number (-2) marks symbolic debugging symbols, | |
729 | including structure/union/enumeration tag names, typedefs, and | |
dcd619be | 730 | the name of the file. A section number of -1 indicates that the |
56385375 | 731 | symbol has a value but is not relocatable. Examples of |
dcd619be KH |
732 | absolute-valued symbols include automatic and register variables, |
733 | function arguments, and .eos symbols. | |
56385375 L |
734 | |
735 | But from Ian Lance Taylor: | |
736 | ||
737 | http://sources.redhat.com/ml/binutils/2000-08/msg00202.html | |
738 | ||
739 | the actual tools all marked them as section -1. So the GNU COFF | |
740 | assembler follows historical COFF assemblers. | |
741 | ||
742 | However, it causes problems for djgpp | |
743 | ||
744 | http://sources.redhat.com/ml/binutils/2000-08/msg00210.html | |
745 | ||
746 | By defining STRICTCOFF, a COFF port can make the assembler to | |
dcd619be | 747 | follow the documented behavior. */ |
56385375 | 748 | #ifdef STRICTCOFF |
252b5132 RH |
749 | case C_MOS: |
750 | case C_MOE: | |
751 | case C_MOU: | |
752 | case C_EOS: | |
56385375 | 753 | #endif |
d1d8ba22 | 754 | SF_SET_DEBUG (def_symbol_in_progress); |
252b5132 RH |
755 | S_SET_SEGMENT (def_symbol_in_progress, absolute_section); |
756 | break; | |
757 | ||
56385375 L |
758 | #ifndef STRICTCOFF |
759 | case C_MOS: | |
760 | case C_MOE: | |
761 | case C_MOU: | |
762 | case C_EOS: | |
763 | S_SET_SEGMENT (def_symbol_in_progress, absolute_section); | |
764 | break; | |
765 | #endif | |
766 | ||
252b5132 RH |
767 | case C_EXT: |
768 | case C_WEAKEXT: | |
769 | #ifdef TE_PE | |
770 | case C_NT_WEAK: | |
771 | #endif | |
772 | case C_STAT: | |
773 | case C_LABEL: | |
774 | /* Valid but set somewhere else (s_comm, s_lcomm, colon) */ | |
775 | break; | |
776 | ||
777 | default: | |
778 | case C_USTATIC: | |
779 | case C_EXTDEF: | |
780 | case C_ULABEL: | |
781 | as_warn (_("unexpected storage class %d"), | |
782 | S_GET_STORAGE_CLASS (def_symbol_in_progress)); | |
783 | break; | |
784 | } /* switch on storage class */ | |
785 | ||
786 | /* Now that we have built a debug symbol, try to find if we should | |
787 | merge with an existing symbol or not. If a symbol is C_EFCN or | |
9690c54d ILT |
788 | absolute_section or untagged SEG_DEBUG it never merges. We also |
789 | don't merge labels, which are in a different namespace, nor | |
790 | symbols which have not yet been defined since they are typically | |
791 | unique, nor do we merge tags with non-tags. */ | |
252b5132 RH |
792 | |
793 | /* Two cases for functions. Either debug followed by definition or | |
794 | definition followed by debug. For definition first, we will | |
795 | merge the debug symbol into the definition. For debug first, the | |
796 | lineno entry MUST point to the definition function or else it | |
797 | will point off into space when obj_crawl_symbol_chain() merges | |
798 | the debug symbol into the real symbol. Therefor, let's presume | |
dcd619be | 799 | the debug symbol is a real function reference. */ |
252b5132 RH |
800 | |
801 | /* FIXME-SOON If for some reason the definition label/symbol is | |
802 | never seen, this will probably leave an undefined symbol at link | |
dcd619be | 803 | time. */ |
252b5132 RH |
804 | |
805 | if (S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_EFCN | |
9690c54d | 806 | || S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_LABEL |
252b5132 RH |
807 | || (!strcmp (bfd_get_section_name (stdoutput, |
808 | S_GET_SEGMENT (def_symbol_in_progress)), | |
809 | "*DEBUG*") | |
810 | && !SF_GET_TAG (def_symbol_in_progress)) | |
811 | || S_GET_SEGMENT (def_symbol_in_progress) == absolute_section | |
9690c54d ILT |
812 | || ! symbol_constant_p (def_symbol_in_progress) |
813 | || (symbolP = symbol_find_base (S_GET_NAME (def_symbol_in_progress), | |
cc8a6dd0 | 814 | DO_NOT_STRIP)) == NULL |
9690c54d | 815 | || SF_GET_TAG (def_symbol_in_progress) != SF_GET_TAG (symbolP)) |
252b5132 | 816 | { |
9690c54d | 817 | /* If it already is at the end of the symbol list, do nothing */ |
252b5132 | 818 | if (def_symbol_in_progress != symbol_lastP) |
cc8a6dd0 | 819 | { |
9690c54d ILT |
820 | symbol_remove (def_symbol_in_progress, &symbol_rootP, &symbol_lastP); |
821 | symbol_append (def_symbol_in_progress, symbol_lastP, &symbol_rootP, | |
822 | &symbol_lastP); | |
cc8a6dd0 | 823 | } |
252b5132 RH |
824 | } |
825 | else | |
826 | { | |
827 | /* This symbol already exists, merge the newly created symbol | |
828 | into the old one. This is not mandatory. The linker can | |
829 | handle duplicate symbols correctly. But I guess that it save | |
830 | a *lot* of space if the assembly file defines a lot of | |
831 | symbols. [loic] */ | |
832 | ||
833 | /* The debug entry (def_symbol_in_progress) is merged into the | |
dcd619be | 834 | previous definition. */ |
252b5132 RH |
835 | |
836 | c_symbol_merge (def_symbol_in_progress, symbolP); | |
837 | symbol_remove (def_symbol_in_progress, &symbol_rootP, &symbol_lastP); | |
838 | ||
839 | def_symbol_in_progress = symbolP; | |
840 | ||
841 | if (SF_GET_FUNCTION (def_symbol_in_progress) | |
842 | || SF_GET_TAG (def_symbol_in_progress) | |
843 | || S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_STAT) | |
844 | { | |
845 | /* For functions, and tags, and static symbols, the symbol | |
846 | *must* be where the debug symbol appears. Move the | |
dcd619be | 847 | existing symbol to the current place. */ |
252b5132 RH |
848 | /* If it already is at the end of the symbol list, do nothing */ |
849 | if (def_symbol_in_progress != symbol_lastP) | |
850 | { | |
851 | symbol_remove (def_symbol_in_progress, &symbol_rootP, &symbol_lastP); | |
852 | symbol_append (def_symbol_in_progress, symbol_lastP, &symbol_rootP, &symbol_lastP); | |
853 | } | |
854 | } | |
855 | } | |
856 | ||
857 | if (SF_GET_TAG (def_symbol_in_progress)) | |
858 | { | |
859 | symbolS *oldtag; | |
860 | ||
861 | oldtag = symbol_find_base (S_GET_NAME (def_symbol_in_progress), | |
862 | DO_NOT_STRIP); | |
863 | if (oldtag == NULL || ! SF_GET_TAG (oldtag)) | |
864 | tag_insert (S_GET_NAME (def_symbol_in_progress), | |
865 | def_symbol_in_progress); | |
866 | } | |
867 | ||
868 | if (SF_GET_FUNCTION (def_symbol_in_progress)) | |
869 | { | |
870 | know (sizeof (def_symbol_in_progress) <= sizeof (long)); | |
871 | set_function (def_symbol_in_progress); | |
872 | SF_SET_PROCESS (def_symbol_in_progress); | |
873 | ||
874 | if (symbolP == NULL) | |
875 | { | |
876 | /* That is, if this is the first time we've seen the | |
dcd619be | 877 | function... */ |
252b5132 RH |
878 | symbol_table_insert (def_symbol_in_progress); |
879 | } /* definition follows debug */ | |
880 | } /* Create the line number entry pointing to the function being defined */ | |
881 | ||
882 | def_symbol_in_progress = NULL; | |
883 | demand_empty_rest_of_line (); | |
884 | } | |
885 | ||
886 | static void | |
887 | obj_coff_dim (ignore) | |
c4bf532f | 888 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
889 | { |
890 | int dim_index; | |
891 | ||
892 | if (def_symbol_in_progress == NULL) | |
893 | { | |
894 | as_warn (_(".dim pseudo-op used outside of .def/.endef: ignored.")); | |
895 | demand_empty_rest_of_line (); | |
896 | return; | |
897 | } /* if not inside .def/.endef */ | |
898 | ||
899 | S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); | |
900 | ||
901 | for (dim_index = 0; dim_index < DIMNUM; dim_index++) | |
902 | { | |
903 | SKIP_WHITESPACES (); | |
904 | SA_SET_SYM_DIMEN (def_symbol_in_progress, dim_index, | |
905 | get_absolute_expression ()); | |
906 | ||
907 | switch (*input_line_pointer) | |
908 | { | |
909 | case ',': | |
910 | input_line_pointer++; | |
911 | break; | |
912 | ||
913 | default: | |
914 | as_warn (_("badly formed .dim directive ignored")); | |
915 | /* intentional fallthrough */ | |
916 | case '\n': | |
917 | case ';': | |
918 | dim_index = DIMNUM; | |
919 | break; | |
920 | } | |
921 | } | |
922 | ||
923 | demand_empty_rest_of_line (); | |
924 | } | |
925 | ||
926 | static void | |
927 | obj_coff_line (ignore) | |
c4bf532f | 928 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
929 | { |
930 | int this_base; | |
931 | ||
932 | if (def_symbol_in_progress == NULL) | |
933 | { | |
934 | /* Probably stabs-style line? */ | |
935 | obj_coff_ln (0); | |
936 | return; | |
937 | } | |
938 | ||
939 | this_base = get_absolute_expression (); | |
940 | if (!strcmp (".bf", S_GET_NAME (def_symbol_in_progress))) | |
941 | coff_line_base = this_base; | |
942 | ||
943 | S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); | |
23dab925 | 944 | SA_SET_SYM_LNNO (def_symbol_in_progress, this_base); |
252b5132 RH |
945 | |
946 | demand_empty_rest_of_line (); | |
947 | ||
948 | #ifndef NO_LISTING | |
949 | if (strcmp (".bf", S_GET_NAME (def_symbol_in_progress)) == 0) | |
950 | { | |
951 | extern int listing; | |
952 | ||
953 | if (listing) | |
23dab925 | 954 | listing_source_line ((unsigned int) this_base); |
252b5132 RH |
955 | } |
956 | #endif | |
957 | } | |
958 | ||
959 | static void | |
960 | obj_coff_size (ignore) | |
c4bf532f | 961 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
962 | { |
963 | if (def_symbol_in_progress == NULL) | |
964 | { | |
965 | as_warn (_(".size pseudo-op used outside of .def/.endef ignored.")); | |
966 | demand_empty_rest_of_line (); | |
967 | return; | |
968 | } /* if not inside .def/.endef */ | |
969 | ||
970 | S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); | |
971 | SA_SET_SYM_SIZE (def_symbol_in_progress, get_absolute_expression ()); | |
972 | demand_empty_rest_of_line (); | |
973 | } | |
974 | ||
975 | static void | |
976 | obj_coff_scl (ignore) | |
c4bf532f | 977 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
978 | { |
979 | if (def_symbol_in_progress == NULL) | |
980 | { | |
981 | as_warn (_(".scl pseudo-op used outside of .def/.endef ignored.")); | |
982 | demand_empty_rest_of_line (); | |
983 | return; | |
984 | } /* if not inside .def/.endef */ | |
985 | ||
986 | S_SET_STORAGE_CLASS (def_symbol_in_progress, get_absolute_expression ()); | |
987 | demand_empty_rest_of_line (); | |
988 | } | |
989 | ||
990 | static void | |
991 | obj_coff_tag (ignore) | |
c4bf532f | 992 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
993 | { |
994 | char *symbol_name; | |
995 | char name_end; | |
996 | ||
997 | if (def_symbol_in_progress == NULL) | |
998 | { | |
999 | as_warn (_(".tag pseudo-op used outside of .def/.endef ignored.")); | |
1000 | demand_empty_rest_of_line (); | |
1001 | return; | |
1002 | } | |
1003 | ||
1004 | S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); | |
1005 | symbol_name = input_line_pointer; | |
1006 | name_end = get_symbol_end (); | |
1007 | ||
1008 | #ifdef tc_canonicalize_symbol_name | |
1009 | symbol_name = tc_canonicalize_symbol_name (symbol_name); | |
1010 | #endif | |
1011 | ||
1012 | /* Assume that the symbol referred to by .tag is always defined. | |
dcd619be | 1013 | This was a bad assumption. I've added find_or_make. xoxorich. */ |
252b5132 RH |
1014 | SA_SET_SYM_TAGNDX (def_symbol_in_progress, |
1015 | tag_find_or_make (symbol_name)); | |
1016 | if (SA_GET_SYM_TAGNDX (def_symbol_in_progress) == 0L) | |
1017 | { | |
1018 | as_warn (_("tag not found for .tag %s"), symbol_name); | |
1019 | } /* not defined */ | |
1020 | ||
1021 | SF_SET_TAGGED (def_symbol_in_progress); | |
1022 | *input_line_pointer = name_end; | |
1023 | ||
1024 | demand_empty_rest_of_line (); | |
1025 | } | |
1026 | ||
1027 | static void | |
1028 | obj_coff_type (ignore) | |
c4bf532f | 1029 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
1030 | { |
1031 | if (def_symbol_in_progress == NULL) | |
1032 | { | |
1033 | as_warn (_(".type pseudo-op used outside of .def/.endef ignored.")); | |
1034 | demand_empty_rest_of_line (); | |
1035 | return; | |
1036 | } /* if not inside .def/.endef */ | |
1037 | ||
1038 | S_SET_DATA_TYPE (def_symbol_in_progress, get_absolute_expression ()); | |
1039 | ||
1040 | if (ISFCN (S_GET_DATA_TYPE (def_symbol_in_progress)) && | |
1041 | S_GET_STORAGE_CLASS (def_symbol_in_progress) != C_TPDEF) | |
1042 | { | |
1043 | SF_SET_FUNCTION (def_symbol_in_progress); | |
1044 | } /* is a function */ | |
1045 | ||
1046 | demand_empty_rest_of_line (); | |
1047 | } | |
1048 | ||
1049 | static void | |
1050 | obj_coff_val (ignore) | |
c4bf532f | 1051 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
1052 | { |
1053 | if (def_symbol_in_progress == NULL) | |
1054 | { | |
1055 | as_warn (_(".val pseudo-op used outside of .def/.endef ignored.")); | |
1056 | demand_empty_rest_of_line (); | |
1057 | return; | |
1058 | } /* if not inside .def/.endef */ | |
1059 | ||
1060 | if (is_name_beginner (*input_line_pointer)) | |
1061 | { | |
1062 | char *symbol_name = input_line_pointer; | |
1063 | char name_end = get_symbol_end (); | |
1064 | ||
1065 | #ifdef tc_canonicalize_symbol_name | |
1066 | symbol_name = tc_canonicalize_symbol_name (symbol_name); | |
1067 | #endif | |
1068 | if (!strcmp (symbol_name, ".")) | |
1069 | { | |
49309057 | 1070 | symbol_set_frag (def_symbol_in_progress, frag_now); |
252b5132 RH |
1071 | S_SET_VALUE (def_symbol_in_progress, (valueT) frag_now_fix ()); |
1072 | /* If the .val is != from the .def (e.g. statics) */ | |
1073 | } | |
1074 | else if (strcmp (S_GET_NAME (def_symbol_in_progress), symbol_name)) | |
1075 | { | |
49309057 ILT |
1076 | expressionS exp; |
1077 | ||
1078 | exp.X_op = O_symbol; | |
1079 | exp.X_add_symbol = symbol_find_or_make (symbol_name); | |
1080 | exp.X_op_symbol = NULL; | |
1081 | exp.X_add_number = 0; | |
1082 | symbol_set_value_expression (def_symbol_in_progress, &exp); | |
252b5132 RH |
1083 | |
1084 | /* If the segment is undefined when the forward reference is | |
1085 | resolved, then copy the segment id from the forward | |
1086 | symbol. */ | |
1087 | SF_SET_GET_SEGMENT (def_symbol_in_progress); | |
0561a208 ILT |
1088 | |
1089 | /* FIXME: gcc can generate address expressions here in | |
1090 | unusual cases (search for "obscure" in sdbout.c). We | |
1091 | just ignore the offset here, thus generating incorrect | |
1092 | debugging information. We ignore the rest of the line | |
1093 | just below. */ | |
252b5132 | 1094 | } |
0561a208 | 1095 | /* Otherwise, it is the name of a non debug symbol and its value |
dcd619be | 1096 | will be calculated later. */ |
252b5132 RH |
1097 | *input_line_pointer = name_end; |
1098 | } | |
1099 | else | |
1100 | { | |
1101 | S_SET_VALUE (def_symbol_in_progress, get_absolute_expression ()); | |
1102 | } /* if symbol based */ | |
1103 | ||
1104 | demand_empty_rest_of_line (); | |
1105 | } | |
1106 | ||
977cdf5a NC |
1107 | #ifdef TE_PE |
1108 | ||
1109 | /* Return nonzero if name begins with weak alternate symbol prefix. */ | |
1110 | ||
1111 | static int | |
1112 | weak_is_altname (const char * name) | |
1113 | { | |
1114 | return ! strncmp (name, weak_altprefix, sizeof (weak_altprefix) - 1); | |
1115 | } | |
1116 | ||
1117 | /* Return the name of the alternate symbol | |
1118 | name corresponding to a weak symbol's name. */ | |
1119 | ||
1120 | static const char * | |
1121 | weak_name2altname (const char * name) | |
1122 | { | |
1123 | char *alt_name; | |
1124 | ||
1125 | alt_name = xmalloc (sizeof (weak_altprefix) + strlen (name)); | |
1126 | strcpy (alt_name, weak_altprefix); | |
1127 | return strcat (alt_name, name); | |
1128 | } | |
1129 | ||
1130 | /* Return the name of the weak symbol corresponding to an | |
1131 | alterate symbol. */ | |
1132 | ||
1133 | static const char * | |
1134 | weak_altname2name (const char * name) | |
1135 | { | |
1136 | char * weak_name; | |
1137 | char * dot; | |
1138 | ||
1139 | assert (weak_is_altname (name)); | |
1140 | ||
1141 | weak_name = xstrdup (name + 6); | |
1142 | if ((dot = strchr (weak_name, '.'))) | |
1143 | *dot = 0; | |
1144 | return weak_name; | |
1145 | } | |
1146 | ||
1147 | /* Make a weak symbol name unique by | |
1148 | appending the name of an external symbol. */ | |
1149 | ||
1150 | static const char * | |
1151 | weak_uniquify (const char * name) | |
1152 | { | |
1153 | char *ret; | |
1154 | const char * unique = ""; | |
1155 | ||
1156 | #ifdef USE_UNIQUE | |
1157 | if (an_external_name != NULL) | |
1158 | unique = an_external_name; | |
1159 | #endif | |
1160 | assert (weak_is_altname (name)); | |
1161 | ||
1162 | if (strchr (name + sizeof (weak_altprefix), '.')) | |
1163 | return name; | |
1164 | ||
1165 | ret = xmalloc (strlen (name) + strlen (unique) + 2); | |
1166 | strcpy (ret, name); | |
1167 | strcat (ret, "."); | |
1168 | strcat (ret, unique); | |
1169 | return ret; | |
1170 | } | |
1171 | ||
1172 | #endif /* TE_PE */ | |
1173 | ||
c87db184 | 1174 | /* Handle .weak. This is a GNU extension in formats other than PE. */ |
977cdf5a | 1175 | |
c87db184 | 1176 | static void |
977cdf5a | 1177 | obj_coff_weak (int ignore ATTRIBUTE_UNUSED) |
c87db184 CF |
1178 | { |
1179 | char *name; | |
1180 | int c; | |
1181 | symbolS *symbolP; | |
977cdf5a NC |
1182 | #ifdef TE_PE |
1183 | symbolS *alternateP; | |
1184 | #endif | |
c87db184 CF |
1185 | |
1186 | do | |
1187 | { | |
1188 | name = input_line_pointer; | |
1189 | c = get_symbol_end (); | |
1190 | if (*name == 0) | |
1191 | { | |
1192 | as_warn (_("badly formed .weak directive ignored")); | |
1193 | ignore_rest_of_line (); | |
1194 | return; | |
1195 | } | |
977cdf5a | 1196 | c = 0; |
c87db184 CF |
1197 | symbolP = symbol_find_or_make (name); |
1198 | *input_line_pointer = c; | |
1199 | SKIP_WHITESPACE (); | |
1200 | ||
1201 | #if defined BFD_ASSEMBLER || defined S_SET_WEAK | |
1202 | S_SET_WEAK (symbolP); | |
1203 | #endif | |
1204 | ||
1205 | #ifdef TE_PE | |
1206 | /* See _Microsoft Portable Executable and Common Object | |
977cdf5a NC |
1207 | File Format Specification_, section 5.5.3. |
1208 | Create a symbol representing the alternate value. | |
1209 | coff_frob_symbol will set the value of this symbol from | |
1210 | the value of the weak symbol itself. */ | |
c87db184 | 1211 | S_SET_STORAGE_CLASS (symbolP, C_NT_WEAK); |
977cdf5a NC |
1212 | S_SET_NUMBER_AUXILIARY (symbolP, 1); |
1213 | SA_SET_SYM_FSIZE (symbolP, IMAGE_WEAK_EXTERN_SEARCH_LIBRARY); | |
c87db184 | 1214 | |
977cdf5a NC |
1215 | alternateP = symbol_find_or_make (weak_name2altname (name)); |
1216 | S_SET_EXTERNAL (alternateP); | |
1217 | S_SET_STORAGE_CLASS (alternateP, C_NT_WEAK); | |
c87db184 | 1218 | |
977cdf5a NC |
1219 | SA_SET_SYM_TAGNDX (symbolP, alternateP); |
1220 | #endif | |
c87db184 CF |
1221 | |
1222 | if (c == ',') | |
1223 | { | |
1224 | input_line_pointer++; | |
1225 | SKIP_WHITESPACE (); | |
1226 | if (*input_line_pointer == '\n') | |
1227 | c = '\n'; | |
1228 | } | |
1229 | ||
1230 | } | |
1231 | while (c == ','); | |
1232 | ||
1233 | demand_empty_rest_of_line (); | |
1234 | } | |
1235 | ||
252b5132 RH |
1236 | void |
1237 | coff_obj_read_begin_hook () | |
1238 | { | |
dcd619be | 1239 | /* These had better be the same. Usually 18 bytes. */ |
252b5132 RH |
1240 | #ifndef BFD_HEADERS |
1241 | know (sizeof (SYMENT) == sizeof (AUXENT)); | |
1242 | know (SYMESZ == AUXESZ); | |
1243 | #endif | |
1244 | tag_init (); | |
1245 | } | |
1246 | ||
252b5132 | 1247 | symbolS *coff_last_function; |
17fc154e | 1248 | #ifndef OBJ_XCOFF |
252b5132 | 1249 | static symbolS *coff_last_bf; |
17fc154e | 1250 | #endif |
252b5132 RH |
1251 | |
1252 | void | |
1253 | coff_frob_symbol (symp, punt) | |
1254 | symbolS *symp; | |
1255 | int *punt; | |
1256 | { | |
1257 | static symbolS *last_tagP; | |
1258 | static stack *block_stack; | |
1259 | static symbolS *set_end; | |
1260 | symbolS *next_set_end = NULL; | |
1261 | ||
1262 | if (symp == &abs_symbol) | |
1263 | { | |
1264 | *punt = 1; | |
1265 | return; | |
1266 | } | |
1267 | ||
1268 | if (current_lineno_sym) | |
1269 | coff_add_linesym ((symbolS *) 0); | |
1270 | ||
1271 | if (!block_stack) | |
1272 | block_stack = stack_init (512, sizeof (symbolS*)); | |
1273 | ||
252b5132 | 1274 | #ifdef TE_PE |
977cdf5a NC |
1275 | if (S_GET_STORAGE_CLASS (symp) == C_NT_WEAK |
1276 | && ! S_IS_WEAK (symp) | |
1277 | && weak_is_altname (S_GET_NAME (symp))) | |
1278 | { | |
1279 | /* This is a weak alternate symbol. All processing of | |
1280 | PECOFFweak symbols is done here, through the alternate. */ | |
1281 | symbolS *weakp = symbol_find (weak_altname2name (S_GET_NAME (symp))); | |
1282 | ||
1283 | assert (weakp); | |
1284 | assert (S_GET_NUMBER_AUXILIARY (weakp) == 1); | |
1285 | ||
1286 | if (symbol_equated_p (weakp)) | |
1287 | { | |
1288 | /* The weak symbol has an alternate specified; symp is unneeded. */ | |
1289 | S_SET_STORAGE_CLASS (weakp, C_NT_WEAK); | |
1290 | SA_SET_SYM_TAGNDX (weakp, | |
1291 | symbol_get_value_expression (weakp)->X_add_symbol); | |
1292 | ||
1293 | S_CLEAR_EXTERNAL (symp); | |
1294 | *punt = 1; | |
1295 | return; | |
1296 | } | |
1297 | else | |
1298 | { | |
1299 | /* The weak symbol has been assigned an alternate value. | |
1300 | Copy this value to symp, and set symp as weakp's alternate. */ | |
1301 | if (S_GET_STORAGE_CLASS (weakp) != C_NT_WEAK) | |
1302 | { | |
1303 | S_SET_STORAGE_CLASS (symp, S_GET_STORAGE_CLASS (weakp)); | |
1304 | S_SET_STORAGE_CLASS (weakp, C_NT_WEAK); | |
1305 | } | |
1306 | ||
1307 | if (S_IS_DEFINED (weakp)) | |
1308 | { | |
1309 | /* This is a defined weak symbol. Copy value information | |
1310 | from the weak symbol itself to the alternate symbol. */ | |
1311 | symbol_set_value_expression (symp, | |
1312 | symbol_get_value_expression (weakp)); | |
1313 | symbol_set_frag (symp, symbol_get_frag (weakp)); | |
1314 | S_SET_SEGMENT (symp, S_GET_SEGMENT (weakp)); | |
1315 | } | |
1316 | else | |
1317 | { | |
1318 | /* This is an undefined weak symbol. | |
1319 | Define the alternate symbol to zero. */ | |
1320 | S_SET_VALUE (symp, 0); | |
1321 | S_SET_SEGMENT (symp, absolute_section); | |
1322 | } | |
1323 | ||
1324 | S_SET_NAME (symp, weak_uniquify (S_GET_NAME (symp))); | |
1325 | S_SET_STORAGE_CLASS (symp, C_EXT); | |
1326 | ||
1327 | S_SET_VALUE (weakp, 0); | |
1328 | S_SET_SEGMENT (weakp, undefined_section); | |
1329 | } | |
252b5132 | 1330 | } |
977cdf5a NC |
1331 | #else /* TE_PE */ |
1332 | if (S_IS_WEAK (symp)) | |
1333 | S_SET_STORAGE_CLASS (symp, C_WEAKEXT); | |
1334 | #endif /* TE_PE */ | |
252b5132 RH |
1335 | |
1336 | if (!S_IS_DEFINED (symp) | |
1337 | && !S_IS_WEAK (symp) | |
1338 | && S_GET_STORAGE_CLASS (symp) != C_STAT) | |
1339 | S_SET_STORAGE_CLASS (symp, C_EXT); | |
1340 | ||
1341 | if (!SF_GET_DEBUG (symp)) | |
1342 | { | |
bdbe95c8 NC |
1343 | symbolS * real; |
1344 | ||
252b5132 RH |
1345 | if (!SF_GET_LOCAL (symp) |
1346 | && !SF_GET_STATICS (symp) | |
39da8128 DD |
1347 | && S_GET_STORAGE_CLASS (symp) != C_LABEL |
1348 | && symbol_constant_p(symp) | |
252b5132 | 1349 | && (real = symbol_find_base (S_GET_NAME (symp), DO_NOT_STRIP)) |
bdbe95c8 | 1350 | && S_GET_STORAGE_CLASS (real) == C_NULL |
252b5132 RH |
1351 | && real != symp) |
1352 | { | |
1353 | c_symbol_merge (symp, real); | |
1354 | *punt = 1; | |
39da8128 | 1355 | return; |
252b5132 | 1356 | } |
bdbe95c8 | 1357 | |
5e0d736c | 1358 | if (!S_IS_DEFINED (symp) && !SF_GET_LOCAL (symp)) |
252b5132 | 1359 | { |
5e0d736c DD |
1360 | assert (S_GET_VALUE (symp) == 0); |
1361 | S_SET_EXTERNAL (symp); | |
1362 | } | |
1363 | else if (S_GET_STORAGE_CLASS (symp) == C_NULL) | |
1364 | { | |
1365 | if (S_GET_SEGMENT (symp) == text_section | |
1366 | && symp != seg_info (text_section)->sym) | |
1367 | S_SET_STORAGE_CLASS (symp, C_LABEL); | |
252b5132 | 1368 | else |
5e0d736c | 1369 | S_SET_STORAGE_CLASS (symp, C_STAT); |
252b5132 | 1370 | } |
bdbe95c8 | 1371 | |
252b5132 RH |
1372 | if (SF_GET_PROCESS (symp)) |
1373 | { | |
1374 | if (S_GET_STORAGE_CLASS (symp) == C_BLOCK) | |
1375 | { | |
1376 | if (!strcmp (S_GET_NAME (symp), ".bb")) | |
1377 | stack_push (block_stack, (char *) &symp); | |
1378 | else | |
1379 | { | |
1380 | symbolS *begin; | |
bdbe95c8 | 1381 | |
252b5132 RH |
1382 | begin = *(symbolS **) stack_pop (block_stack); |
1383 | if (begin == 0) | |
1384 | as_warn (_("mismatched .eb")); | |
1385 | else | |
1386 | next_set_end = begin; | |
1387 | } | |
1388 | } | |
bdbe95c8 | 1389 | |
252b5132 RH |
1390 | if (coff_last_function == 0 && SF_GET_FUNCTION (symp)) |
1391 | { | |
1392 | union internal_auxent *auxp; | |
bdbe95c8 | 1393 | |
252b5132 RH |
1394 | coff_last_function = symp; |
1395 | if (S_GET_NUMBER_AUXILIARY (symp) < 1) | |
1396 | S_SET_NUMBER_AUXILIARY (symp, 1); | |
0561a208 | 1397 | auxp = SYM_AUXENT (symp); |
252b5132 RH |
1398 | memset (auxp->x_sym.x_fcnary.x_ary.x_dimen, 0, |
1399 | sizeof (auxp->x_sym.x_fcnary.x_ary.x_dimen)); | |
1400 | } | |
bdbe95c8 | 1401 | |
252b5132 RH |
1402 | if (S_GET_STORAGE_CLASS (symp) == C_EFCN) |
1403 | { | |
1404 | if (coff_last_function == 0) | |
1405 | as_fatal (_("C_EFCN symbol out of scope")); | |
1406 | SA_SET_SYM_FSIZE (coff_last_function, | |
1407 | (long) (S_GET_VALUE (symp) | |
1408 | - S_GET_VALUE (coff_last_function))); | |
1409 | next_set_end = coff_last_function; | |
1410 | coff_last_function = 0; | |
1411 | } | |
1412 | } | |
bdbe95c8 | 1413 | |
252b5132 RH |
1414 | if (S_IS_EXTERNAL (symp)) |
1415 | S_SET_STORAGE_CLASS (symp, C_EXT); | |
1416 | else if (SF_GET_LOCAL (symp)) | |
1417 | *punt = 1; | |
1418 | ||
1419 | if (SF_GET_FUNCTION (symp)) | |
49309057 | 1420 | symbol_get_bfdsym (symp)->flags |= BSF_FUNCTION; |
252b5132 | 1421 | |
dcd619be | 1422 | /* more ... */ |
252b5132 RH |
1423 | } |
1424 | ||
8828d862 ILT |
1425 | /* Double check weak symbols. */ |
1426 | if (S_IS_WEAK (symp) && S_IS_COMMON (symp)) | |
1427 | as_bad (_("Symbol `%s' can not be both weak and common"), | |
1428 | S_GET_NAME (symp)); | |
1429 | ||
252b5132 RH |
1430 | if (SF_GET_TAG (symp)) |
1431 | last_tagP = symp; | |
1432 | else if (S_GET_STORAGE_CLASS (symp) == C_EOS) | |
1433 | next_set_end = last_tagP; | |
1434 | ||
1435 | #ifdef OBJ_XCOFF | |
1436 | /* This is pretty horrible, but we have to set *punt correctly in | |
1437 | order to call SA_SET_SYM_ENDNDX correctly. */ | |
809ffe0d | 1438 | if (! symbol_used_in_reloc_p (symp) |
49309057 | 1439 | && ((symbol_get_bfdsym (symp)->flags & BSF_SECTION_SYM) != 0 |
670ec21d | 1440 | || (! (S_IS_EXTERNAL (symp) || S_IS_WEAK (symp)) |
809ffe0d | 1441 | && ! symbol_get_tc (symp)->output |
252b5132 RH |
1442 | && S_GET_STORAGE_CLASS (symp) != C_FILE))) |
1443 | *punt = 1; | |
1444 | #endif | |
1445 | ||
1446 | if (set_end != (symbolS *) NULL | |
1447 | && ! *punt | |
49309057 | 1448 | && ((symbol_get_bfdsym (symp)->flags & BSF_NOT_AT_END) != 0 |
252b5132 RH |
1449 | || (S_IS_DEFINED (symp) |
1450 | && ! S_IS_COMMON (symp) | |
1451 | && (! S_IS_EXTERNAL (symp) || SF_GET_FUNCTION (symp))))) | |
1452 | { | |
1453 | SA_SET_SYM_ENDNDX (set_end, symp); | |
1454 | set_end = NULL; | |
1455 | } | |
1456 | ||
a04b544b ILT |
1457 | if (next_set_end != NULL) |
1458 | { | |
1459 | if (set_end != NULL) | |
1460 | as_warn ("Warning: internal error: forgetting to set endndx of %s", | |
1461 | S_GET_NAME (set_end)); | |
1462 | set_end = next_set_end; | |
1463 | } | |
252b5132 | 1464 | |
8642cce8 | 1465 | #ifndef OBJ_XCOFF |
252b5132 RH |
1466 | if (! *punt |
1467 | && S_GET_STORAGE_CLASS (symp) == C_FCN | |
1468 | && strcmp (S_GET_NAME (symp), ".bf") == 0) | |
1469 | { | |
1470 | if (coff_last_bf != NULL) | |
1471 | SA_SET_SYM_ENDNDX (coff_last_bf, symp); | |
1472 | coff_last_bf = symp; | |
1473 | } | |
8642cce8 | 1474 | #endif |
49309057 | 1475 | if (coffsymbol (symbol_get_bfdsym (symp))->lineno) |
252b5132 RH |
1476 | { |
1477 | int i; | |
1478 | struct line_no *lptr; | |
1479 | alent *l; | |
1480 | ||
49309057 | 1481 | lptr = (struct line_no *) coffsymbol (symbol_get_bfdsym (symp))->lineno; |
252b5132 RH |
1482 | for (i = 0; lptr; lptr = lptr->next) |
1483 | i++; | |
49309057 | 1484 | lptr = (struct line_no *) coffsymbol (symbol_get_bfdsym (symp))->lineno; |
252b5132 RH |
1485 | |
1486 | /* We need i entries for line numbers, plus 1 for the first | |
1487 | entry which BFD will override, plus 1 for the last zero | |
1488 | entry (a marker for BFD). */ | |
1489 | l = (alent *) xmalloc ((i + 2) * sizeof (alent)); | |
49309057 | 1490 | coffsymbol (symbol_get_bfdsym (symp))->lineno = l; |
252b5132 RH |
1491 | l[i + 1].line_number = 0; |
1492 | l[i + 1].u.sym = NULL; | |
1493 | for (; i > 0; i--) | |
1494 | { | |
1495 | if (lptr->frag) | |
bea9907b | 1496 | lptr->l.u.offset += lptr->frag->fr_address / OCTETS_PER_BYTE; |
252b5132 RH |
1497 | l[i] = lptr->l; |
1498 | lptr = lptr->next; | |
1499 | } | |
1500 | } | |
1501 | } | |
1502 | ||
1503 | void | |
1504 | coff_adjust_section_syms (abfd, sec, x) | |
c4bf532f | 1505 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 | 1506 | asection *sec; |
c4bf532f | 1507 | PTR x ATTRIBUTE_UNUSED; |
252b5132 RH |
1508 | { |
1509 | symbolS *secsym; | |
1510 | segment_info_type *seginfo = seg_info (sec); | |
1511 | int nlnno, nrelocs = 0; | |
1512 | ||
1513 | /* RS/6000 gas creates a .debug section manually in ppc_frob_file in | |
1514 | tc-ppc.c. Do not get confused by it. */ | |
1515 | if (seginfo == NULL) | |
1516 | return; | |
1517 | ||
1518 | if (!strcmp (sec->name, ".text")) | |
1519 | nlnno = coff_n_line_nos; | |
1520 | else | |
1521 | nlnno = 0; | |
1522 | { | |
1523 | /* @@ Hope that none of the fixups expand to more than one reloc | |
1524 | entry... */ | |
1525 | fixS *fixp = seginfo->fix_root; | |
1526 | while (fixp) | |
1527 | { | |
1528 | if (! fixp->fx_done) | |
1529 | nrelocs++; | |
1530 | fixp = fixp->fx_next; | |
1531 | } | |
1532 | } | |
587aac4e | 1533 | if (bfd_get_section_size (sec) == 0 |
252b5132 RH |
1534 | && nrelocs == 0 |
1535 | && nlnno == 0 | |
1536 | && sec != text_section | |
1537 | && sec != data_section | |
1538 | && sec != bss_section) | |
1539 | return; | |
1540 | secsym = section_symbol (sec); | |
945a1a6b ILT |
1541 | /* This is an estimate; we'll plug in the real value using |
1542 | SET_SECTION_RELOCS later */ | |
252b5132 RH |
1543 | SA_SET_SCN_NRELOC (secsym, nrelocs); |
1544 | SA_SET_SCN_NLINNO (secsym, nlnno); | |
1545 | } | |
1546 | ||
1547 | void | |
1548 | coff_frob_file_after_relocs () | |
1549 | { | |
1550 | bfd_map_over_sections (stdoutput, coff_adjust_section_syms, (char*) 0); | |
1551 | } | |
1552 | ||
6ff96af6 NC |
1553 | /* Implement the .section pseudo op: |
1554 | .section name {, "flags"} | |
1555 | ^ ^ | |
1556 | | +--- optional flags: 'b' for bss | |
1557 | | 'i' for info | |
1558 | +-- section name 'l' for lib | |
1559 | 'n' for noload | |
1560 | 'o' for over | |
1561 | 'w' for data | |
1562 | 'd' (apparently m88k for data) | |
1563 | 'x' for text | |
1564 | 'r' for read-only data | |
1565 | 's' for shared data (PE) | |
1566 | But if the argument is not a quoted string, treat it as a | |
1567 | subsegment number. | |
1568 | ||
1569 | Note the 'a' flag is silently ignored. This allows the same | |
1570 | .section directive to be parsed in both ELF and COFF formats. */ | |
252b5132 RH |
1571 | |
1572 | void | |
1573 | obj_coff_section (ignore) | |
c4bf532f | 1574 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
1575 | { |
1576 | /* Strip out the section name */ | |
1577 | char *section_name; | |
1578 | char c; | |
1579 | char *name; | |
1580 | unsigned int exp; | |
c9900432 | 1581 | flagword flags, oldflags; |
252b5132 RH |
1582 | asection *sec; |
1583 | ||
1584 | if (flag_mri) | |
1585 | { | |
1586 | char type; | |
1587 | ||
1588 | s_mri_sect (&type); | |
1589 | return; | |
1590 | } | |
1591 | ||
1592 | section_name = input_line_pointer; | |
1593 | c = get_symbol_end (); | |
1594 | ||
1595 | name = xmalloc (input_line_pointer - section_name + 1); | |
1596 | strcpy (name, section_name); | |
1597 | ||
1598 | *input_line_pointer = c; | |
1599 | ||
1600 | SKIP_WHITESPACE (); | |
1601 | ||
1602 | exp = 0; | |
c9900432 | 1603 | flags = SEC_NO_FLAGS; |
252b5132 RH |
1604 | |
1605 | if (*input_line_pointer == ',') | |
1606 | { | |
1607 | ++input_line_pointer; | |
1608 | SKIP_WHITESPACE (); | |
1609 | if (*input_line_pointer != '"') | |
1610 | exp = get_absolute_expression (); | |
1611 | else | |
1612 | { | |
1613 | ++input_line_pointer; | |
1614 | while (*input_line_pointer != '"' | |
1615 | && ! is_end_of_line[(unsigned char) *input_line_pointer]) | |
1616 | { | |
1617 | switch (*input_line_pointer) | |
1618 | { | |
1619 | case 'b': flags |= SEC_ALLOC; flags &=~ SEC_LOAD; break; | |
1af96959 | 1620 | case 'n': flags &=~ SEC_LOAD; flags |= SEC_NEVER_LOAD; break; |
e96c5464 NC |
1621 | |
1622 | case 's': flags |= SEC_SHARED; /* fall through */ | |
5881e4aa ILT |
1623 | case 'd': flags |= SEC_DATA | SEC_LOAD; /* fall through */ |
1624 | case 'w': flags &=~ SEC_READONLY; break; | |
e96c5464 | 1625 | |
aaa2624b | 1626 | case 'a': break; /* For compatibility with ELF. */ |
5881e4aa | 1627 | case 'x': flags |= SEC_CODE | SEC_LOAD; break; |
b256d4fd | 1628 | case 'r': flags |= SEC_DATA | SEC_LOAD | SEC_READONLY; break; |
252b5132 RH |
1629 | |
1630 | case 'i': /* STYP_INFO */ | |
1631 | case 'l': /* STYP_LIB */ | |
1632 | case 'o': /* STYP_OVER */ | |
1633 | as_warn (_("unsupported section attribute '%c'"), | |
1634 | *input_line_pointer); | |
1635 | break; | |
1636 | ||
1637 | default: | |
1638 | as_warn(_("unknown section attribute '%c'"), | |
1639 | *input_line_pointer); | |
1640 | break; | |
1641 | } | |
1642 | ++input_line_pointer; | |
1643 | } | |
1644 | if (*input_line_pointer == '"') | |
1645 | ++input_line_pointer; | |
1646 | } | |
1647 | } | |
1648 | ||
1649 | sec = subseg_new (name, (subsegT) exp); | |
1650 | ||
c9900432 NC |
1651 | oldflags = bfd_get_section_flags (stdoutput, sec); |
1652 | if (oldflags == SEC_NO_FLAGS) | |
252b5132 | 1653 | { |
c9900432 NC |
1654 | /* Set section flags for a new section just created by subseg_new. |
1655 | Provide a default if no flags were parsed. */ | |
1656 | if (flags == SEC_NO_FLAGS) | |
1ad5eac0 | 1657 | flags = TC_COFF_SECTION_DEFAULT_ATTRIBUTES; |
dcd619be | 1658 | |
c9900432 NC |
1659 | #ifdef COFF_LONG_SECTION_NAMES |
1660 | /* Add SEC_LINK_ONCE and SEC_LINK_DUPLICATES_DISCARD to .gnu.linkonce | |
1661 | sections so adjust_reloc_syms in write.c will correctly handle | |
1662 | relocs which refer to non-local symbols in these sections. */ | |
814f6641 | 1663 | if (strncmp (name, ".gnu.linkonce", sizeof (".gnu.linkonce") - 1) == 0) |
cc8a6dd0 | 1664 | flags |= SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD; |
c9900432 | 1665 | #endif |
252b5132 RH |
1666 | |
1667 | if (! bfd_set_section_flags (stdoutput, sec, flags)) | |
cc8a6dd0 KH |
1668 | as_warn (_("error setting flags for \"%s\": %s"), |
1669 | bfd_section_name (stdoutput, sec), | |
1670 | bfd_errmsg (bfd_get_error ())); | |
c9900432 NC |
1671 | } |
1672 | else if (flags != SEC_NO_FLAGS) | |
1673 | { | |
1674 | /* This section's attributes have already been set. Warn if the | |
1675 | attributes don't match. */ | |
5dd0794d AM |
1676 | flagword matchflags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE |
1677 | | SEC_DATA | SEC_SHARED | SEC_NEVER_LOAD); | |
c9900432 NC |
1678 | if ((flags ^ oldflags) & matchflags) |
1679 | as_warn (_("Ignoring changed section attributes for %s"), name); | |
252b5132 RH |
1680 | } |
1681 | ||
1682 | demand_empty_rest_of_line (); | |
1683 | } | |
1684 | ||
1685 | void | |
1686 | coff_adjust_symtab () | |
1687 | { | |
1688 | if (symbol_rootP == NULL | |
1689 | || S_GET_STORAGE_CLASS (symbol_rootP) != C_FILE) | |
1690 | c_dot_file_symbol ("fake"); | |
1691 | } | |
1692 | ||
1693 | void | |
1694 | coff_frob_section (sec) | |
1695 | segT sec; | |
1696 | { | |
1697 | segT strsec; | |
1698 | char *p; | |
1699 | fragS *fragp; | |
1700 | bfd_vma size, n_entries, mask; | |
bea9907b | 1701 | bfd_vma align_power = (bfd_vma)sec->alignment_power + OCTETS_PER_BYTE_POWER; |
252b5132 RH |
1702 | |
1703 | /* The COFF back end in BFD requires that all section sizes be | |
bea9907b TW |
1704 | rounded up to multiples of the corresponding section alignments, |
1705 | supposedly because standard COFF has no other way of encoding alignment | |
1706 | for sections. If your COFF flavor has a different way of encoding | |
dcd619be | 1707 | section alignment, then skip this step, as TICOFF does. */ |
587aac4e | 1708 | size = bfd_get_section_size (sec); |
bea9907b TW |
1709 | mask = ((bfd_vma) 1 << align_power) - 1; |
1710 | #if !defined(TICOFF) | |
252b5132 RH |
1711 | if (size & mask) |
1712 | { | |
7f788821 NC |
1713 | bfd_vma new_size; |
1714 | fragS *last; | |
dcd619be | 1715 | |
7f788821 NC |
1716 | new_size = (size + mask) & ~mask; |
1717 | bfd_set_section_size (stdoutput, sec, new_size); | |
1718 | ||
1719 | /* If the size had to be rounded up, add some padding in | |
1720 | the last non-empty frag. */ | |
1721 | fragp = seg_info (sec)->frchainP->frch_root; | |
1722 | last = seg_info (sec)->frchainP->frch_last; | |
1723 | while (fragp->fr_next != last) | |
cc8a6dd0 | 1724 | fragp = fragp->fr_next; |
7f788821 NC |
1725 | last->fr_address = size; |
1726 | fragp->fr_offset += new_size - size; | |
252b5132 | 1727 | } |
bea9907b | 1728 | #endif |
252b5132 RH |
1729 | |
1730 | /* If the section size is non-zero, the section symbol needs an aux | |
1731 | entry associated with it, indicating the size. We don't know | |
1732 | all the values yet; coff_frob_symbol will fill them in later. */ | |
bea9907b | 1733 | #ifndef TICOFF |
252b5132 RH |
1734 | if (size != 0 |
1735 | || sec == text_section | |
1736 | || sec == data_section | |
1737 | || sec == bss_section) | |
bea9907b | 1738 | #endif |
252b5132 RH |
1739 | { |
1740 | symbolS *secsym = section_symbol (sec); | |
1741 | ||
1742 | S_SET_STORAGE_CLASS (secsym, C_STAT); | |
1743 | S_SET_NUMBER_AUXILIARY (secsym, 1); | |
1744 | SF_SET_STATICS (secsym); | |
1745 | SA_SET_SCN_SCNLEN (secsym, size); | |
1746 | } | |
1747 | ||
1748 | /* @@ these should be in a "stabs.h" file, or maybe as.h */ | |
1749 | #ifndef STAB_SECTION_NAME | |
1750 | #define STAB_SECTION_NAME ".stab" | |
1751 | #endif | |
1752 | #ifndef STAB_STRING_SECTION_NAME | |
1753 | #define STAB_STRING_SECTION_NAME ".stabstr" | |
1754 | #endif | |
1755 | if (strcmp (STAB_STRING_SECTION_NAME, sec->name)) | |
1756 | return; | |
1757 | ||
1758 | strsec = sec; | |
1759 | sec = subseg_get (STAB_SECTION_NAME, 0); | |
1760 | /* size is already rounded up, since other section will be listed first */ | |
587aac4e | 1761 | size = bfd_get_section_size (strsec); |
252b5132 | 1762 | |
587aac4e | 1763 | n_entries = bfd_get_section_size (sec) / 12 - 1; |
252b5132 RH |
1764 | |
1765 | /* Find first non-empty frag. It should be large enough. */ | |
1766 | fragp = seg_info (sec)->frchainP->frch_root; | |
1767 | while (fragp && fragp->fr_fix == 0) | |
1768 | fragp = fragp->fr_next; | |
1769 | assert (fragp != 0 && fragp->fr_fix >= 12); | |
1770 | ||
1771 | /* Store the values. */ | |
1772 | p = fragp->fr_literal; | |
1773 | bfd_h_put_16 (stdoutput, n_entries, (bfd_byte *) p + 6); | |
1774 | bfd_h_put_32 (stdoutput, size, (bfd_byte *) p + 8); | |
1775 | } | |
1776 | ||
1777 | void | |
1778 | obj_coff_init_stab_section (seg) | |
1779 | segT seg; | |
1780 | { | |
1781 | char *file; | |
1782 | char *p; | |
1783 | char *stabstr_name; | |
1784 | unsigned int stroff; | |
1785 | ||
dcd619be | 1786 | /* Make space for this first symbol. */ |
252b5132 | 1787 | p = frag_more (12); |
dcd619be | 1788 | /* Zero it out. */ |
252b5132 RH |
1789 | memset (p, 0, 12); |
1790 | as_where (&file, (unsigned int *) NULL); | |
23deb923 | 1791 | stabstr_name = (char *) xmalloc (strlen (seg->name) + 4); |
252b5132 RH |
1792 | strcpy (stabstr_name, seg->name); |
1793 | strcat (stabstr_name, "str"); | |
1794 | stroff = get_stab_string_offset (file, stabstr_name); | |
1795 | know (stroff == 1); | |
1796 | md_number_to_chars (p, stroff, 4); | |
1797 | } | |
1798 | ||
1799 | #ifdef DEBUG | |
1800 | /* for debugging */ | |
1801 | const char * | |
1802 | s_get_name (s) | |
1803 | symbolS *s; | |
1804 | { | |
1805 | return ((s == NULL) ? "(NULL)" : S_GET_NAME (s)); | |
1806 | } | |
1807 | ||
1808 | void | |
1809 | symbol_dump () | |
1810 | { | |
1811 | symbolS *symbolP; | |
1812 | ||
1813 | for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next (symbolP)) | |
1814 | { | |
814f6641 | 1815 | printf (_("0x%lx: \"%s\" type = %ld, class = %d, segment = %d\n"), |
252b5132 RH |
1816 | (unsigned long) symbolP, |
1817 | S_GET_NAME(symbolP), | |
1818 | (long) S_GET_DATA_TYPE(symbolP), | |
1819 | S_GET_STORAGE_CLASS(symbolP), | |
1820 | (int) S_GET_SEGMENT(symbolP)); | |
1821 | } | |
1822 | } | |
1823 | ||
1824 | #endif /* DEBUG */ | |
1825 | ||
1826 | #else /* not BFD_ASSEMBLER */ | |
1827 | ||
1828 | #include "frags.h" | |
dcd619be | 1829 | /* This is needed because we include internal bfd things. */ |
252b5132 RH |
1830 | #include <time.h> |
1831 | ||
1832 | #include "libbfd.h" | |
1833 | #include "libcoff.h" | |
1834 | ||
252b5132 RH |
1835 | /* The NOP_OPCODE is for the alignment fill value. Fill with nop so |
1836 | that we can stick sections together without causing trouble. */ | |
1837 | #ifndef NOP_OPCODE | |
1838 | #define NOP_OPCODE 0x00 | |
1839 | #endif | |
1840 | ||
1841 | /* The zeroes if symbol name is longer than 8 chars */ | |
1842 | #define S_SET_ZEROES(s,v) ((s)->sy_symbol.ost_entry.n_zeroes = (v)) | |
1843 | ||
1844 | #define MIN(a,b) ((a) < (b)? (a) : (b)) | |
a04b544b ILT |
1845 | |
1846 | /* This vector is used to turn a gas internal segment number into a | |
1847 | section number suitable for insertion into a coff symbol table. | |
1848 | This must correspond to seg_info_off_by_4. */ | |
252b5132 RH |
1849 | |
1850 | const short seg_N_TYPE[] = | |
1851 | { /* in: segT out: N_TYPE bits */ | |
1852 | C_ABS_SECTION, | |
1853 | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, | |
1854 | 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, | |
1855 | 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, | |
1856 | 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, | |
1857 | C_UNDEF_SECTION, /* SEG_UNKNOWN */ | |
1858 | C_UNDEF_SECTION, /* SEG_GOOF */ | |
1859 | C_UNDEF_SECTION, /* SEG_EXPR */ | |
1860 | C_DEBUG_SECTION, /* SEG_DEBUG */ | |
1861 | C_NTV_SECTION, /* SEG_NTV */ | |
1862 | C_PTV_SECTION, /* SEG_PTV */ | |
1863 | C_REGISTER_SECTION, /* SEG_REGISTER */ | |
1864 | }; | |
1865 | ||
1866 | int function_lineoff = -1; /* Offset in line#s where the last function | |
1867 | started (the odd entry for line #0) */ | |
1868 | ||
f8e42b8c | 1869 | /* Structure used to keep the filenames which |
252b5132 | 1870 | are too long around so that we can stick them |
f8e42b8c | 1871 | into the string table. */ |
dcd619be | 1872 | struct filename_list |
252b5132 RH |
1873 | { |
1874 | char *filename; | |
1875 | struct filename_list *next; | |
1876 | }; | |
1877 | ||
1878 | static struct filename_list *filename_list_head; | |
1879 | static struct filename_list *filename_list_tail; | |
1880 | ||
1881 | static symbolS *last_line_symbol; | |
1882 | ||
1883 | /* Add 4 to the real value to get the index and compensate the | |
1884 | negatives. This vector is used by S_GET_SEGMENT to turn a coff | |
f8e42b8c | 1885 | section number into a segment number. */ |
252b5132 | 1886 | |
252b5132 | 1887 | bfd *abfd; |
f8e42b8c NC |
1888 | static symbolS *previous_file_symbol; |
1889 | static int line_base; | |
252b5132 | 1890 | |
f8e42b8c NC |
1891 | void c_symbol_merge PARAMS ((symbolS *, symbolS *)); |
1892 | symbolS *c_section_symbol PARAMS ((char *, int)); | |
1893 | void obj_coff_section PARAMS ((int)); | |
1894 | void do_relocs_for PARAMS ((bfd *, object_headers *, unsigned long *)); | |
1895 | char * symbol_to_chars PARAMS ((bfd *, char *, symbolS *)); | |
1896 | void w_strings PARAMS ((char *)); | |
1897 | ||
1898 | static void fixup_segment PARAMS ((segment_info_type *, segT)); | |
1899 | static void fixup_mdeps PARAMS ((fragS *, object_headers *, segT)); | |
1900 | static void fill_section PARAMS ((bfd *, object_headers *, unsigned long *)); | |
1901 | static int c_line_new PARAMS ((symbolS *, long, int, fragS *)); | |
1902 | static void w_symbols PARAMS ((bfd *, char *, symbolS *)); | |
1903 | static void adjust_stab_section PARAMS ((bfd *, segT)); | |
252b5132 RH |
1904 | static void obj_coff_lcomm PARAMS ((int)); |
1905 | static void obj_coff_text PARAMS ((int)); | |
1906 | static void obj_coff_data PARAMS ((int)); | |
f8e42b8c NC |
1907 | static unsigned int count_entries_in_chain PARAMS ((unsigned int)); |
1908 | static void coff_header_append PARAMS ((bfd *, object_headers *)); | |
1909 | static unsigned int yank_symbols PARAMS ((void)); | |
1910 | static unsigned int glue_symbols PARAMS ((symbolS **, symbolS **)); | |
1911 | static unsigned int tie_tags PARAMS ((void)); | |
1912 | static void crawl_symbols PARAMS ((object_headers *, bfd *)); | |
1913 | static void do_linenos_for PARAMS ((bfd *, object_headers *, unsigned long *)); | |
1914 | static void remove_subsegs PARAMS ((void)); | |
1915 | ||
1916 | ||
252b5132 | 1917 | |
a04b544b | 1918 | /* When not using BFD_ASSEMBLER, we permit up to 40 sections. |
252b5132 | 1919 | |
a04b544b ILT |
1920 | This array maps a COFF section number into a gas section number. |
1921 | Because COFF uses negative section numbers, you must add 4 to the | |
1922 | COFF section number when indexing into this array; this is done via | |
1923 | the SEG_INFO_FROM_SECTION_NUMBER macro. This must correspond to | |
1924 | seg_N_TYPE. */ | |
252b5132 | 1925 | |
a04b544b | 1926 | static const segT seg_info_off_by_4[] = |
252b5132 | 1927 | { |
a04b544b ILT |
1928 | SEG_PTV, |
1929 | SEG_NTV, | |
1930 | SEG_DEBUG, | |
1931 | SEG_ABSOLUTE, | |
1932 | SEG_UNKNOWN, | |
1933 | SEG_E0, SEG_E1, SEG_E2, SEG_E3, SEG_E4, | |
1934 | SEG_E5, SEG_E6, SEG_E7, SEG_E8, SEG_E9, | |
1935 | SEG_E10, SEG_E11, SEG_E12, SEG_E13, SEG_E14, | |
1936 | SEG_E15, SEG_E16, SEG_E17, SEG_E18, SEG_E19, | |
1937 | SEG_E20, SEG_E21, SEG_E22, SEG_E23, SEG_E24, | |
1938 | SEG_E25, SEG_E26, SEG_E27, SEG_E28, SEG_E29, | |
1939 | SEG_E30, SEG_E31, SEG_E32, SEG_E33, SEG_E34, | |
1940 | SEG_E35, SEG_E36, SEG_E37, SEG_E38, SEG_E39, | |
1941 | (segT) 40, | |
1942 | (segT) 41, | |
1943 | (segT) 42, | |
1944 | (segT) 43, | |
1945 | (segT) 44, | |
1946 | (segT) 45, | |
1947 | (segT) 0, | |
1948 | (segT) 0, | |
1949 | (segT) 0, | |
1950 | SEG_REGISTER | |
252b5132 RH |
1951 | }; |
1952 | ||
252b5132 RH |
1953 | #define SEG_INFO_FROM_SECTION_NUMBER(x) (seg_info_off_by_4[(x)+4]) |
1954 | ||
f8e42b8c NC |
1955 | static relax_addressT relax_align PARAMS ((relax_addressT, long)); |
1956 | ||
252b5132 RH |
1957 | static relax_addressT |
1958 | relax_align (address, alignment) | |
1959 | relax_addressT address; | |
1960 | long alignment; | |
1961 | { | |
1962 | relax_addressT mask; | |
1963 | relax_addressT new_address; | |
1964 | ||
1965 | mask = ~((~0) << alignment); | |
1966 | new_address = (address + mask) & (~mask); | |
1967 | return (new_address - address); | |
1968 | } | |
1969 | ||
252b5132 RH |
1970 | segT |
1971 | s_get_segment (x) | |
1972 | symbolS * x; | |
1973 | { | |
a04b544b | 1974 | return SEG_INFO_FROM_SECTION_NUMBER (x->sy_symbol.ost_entry.n_scnum); |
252b5132 RH |
1975 | } |
1976 | ||
f8e42b8c NC |
1977 | static unsigned int size_section PARAMS ((bfd *, unsigned int)); |
1978 | ||
1979 | /* Calculate the size of the frag chain and fill in the section header | |
1980 | to contain all of it, also fill in the addr of the sections. */ | |
1981 | ||
252b5132 RH |
1982 | static unsigned int |
1983 | size_section (abfd, idx) | |
a04b544b | 1984 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
1985 | unsigned int idx; |
1986 | { | |
252b5132 RH |
1987 | unsigned int size = 0; |
1988 | fragS *frag = segment_info[idx].frchainP->frch_root; | |
f8e42b8c | 1989 | |
252b5132 RH |
1990 | while (frag) |
1991 | { | |
1992 | size = frag->fr_address; | |
1993 | if (frag->fr_address != size) | |
1994 | { | |
1995 | fprintf (stderr, _("Out of step\n")); | |
1996 | size = frag->fr_address; | |
1997 | } | |
1998 | ||
1999 | switch (frag->fr_type) | |
2000 | { | |
2001 | #ifdef TC_COFF_SIZEMACHDEP | |
2002 | case rs_machine_dependent: | |
2003 | size += TC_COFF_SIZEMACHDEP (frag); | |
2004 | break; | |
2005 | #endif | |
2006 | case rs_space: | |
252b5132 RH |
2007 | case rs_fill: |
2008 | case rs_org: | |
2009 | size += frag->fr_fix; | |
2010 | size += frag->fr_offset * frag->fr_var; | |
2011 | break; | |
2012 | case rs_align: | |
2013 | case rs_align_code: | |
0a9ef439 | 2014 | case rs_align_test: |
252b5132 RH |
2015 | { |
2016 | addressT off; | |
2017 | ||
2018 | size += frag->fr_fix; | |
2019 | off = relax_align (size, frag->fr_offset); | |
2020 | if (frag->fr_subtype != 0 && off > frag->fr_subtype) | |
2021 | off = 0; | |
2022 | size += off; | |
2023 | } | |
2024 | break; | |
2025 | default: | |
2026 | BAD_CASE (frag->fr_type); | |
2027 | break; | |
2028 | } | |
2029 | frag = frag->fr_next; | |
2030 | } | |
2031 | segment_info[idx].scnhdr.s_size = size; | |
2032 | return size; | |
2033 | } | |
2034 | ||
252b5132 RH |
2035 | static unsigned int |
2036 | count_entries_in_chain (idx) | |
2037 | unsigned int idx; | |
2038 | { | |
2039 | unsigned int nrelocs; | |
2040 | fixS *fixup_ptr; | |
2041 | ||
f8e42b8c | 2042 | /* Count the relocations. */ |
252b5132 RH |
2043 | fixup_ptr = segment_info[idx].fix_root; |
2044 | nrelocs = 0; | |
2045 | while (fixup_ptr != (fixS *) NULL) | |
2046 | { | |
2047 | if (fixup_ptr->fx_done == 0 && TC_COUNT_RELOC (fixup_ptr)) | |
2048 | { | |
3b16e843 | 2049 | #if defined(TC_A29K) || defined(TC_OR32) |
252b5132 RH |
2050 | if (fixup_ptr->fx_r_type == RELOC_CONSTH) |
2051 | nrelocs += 2; | |
2052 | else | |
2053 | nrelocs++; | |
2054 | #else | |
2055 | nrelocs++; | |
2056 | #endif | |
2057 | } | |
2058 | ||
2059 | fixup_ptr = fixup_ptr->fx_next; | |
2060 | } | |
2061 | return nrelocs; | |
2062 | } | |
2063 | ||
2064 | #ifdef TE_AUX | |
2065 | ||
2066 | static int compare_external_relocs PARAMS ((const PTR, const PTR)); | |
2067 | ||
f8e42b8c NC |
2068 | /* AUX's ld expects relocations to be sorted. */ |
2069 | ||
252b5132 RH |
2070 | static int |
2071 | compare_external_relocs (x, y) | |
2072 | const PTR x; | |
2073 | const PTR y; | |
2074 | { | |
2075 | struct external_reloc *a = (struct external_reloc *) x; | |
2076 | struct external_reloc *b = (struct external_reloc *) y; | |
2077 | bfd_vma aadr = bfd_getb32 (a->r_vaddr); | |
2078 | bfd_vma badr = bfd_getb32 (b->r_vaddr); | |
2079 | return (aadr < badr ? -1 : badr < aadr ? 1 : 0); | |
2080 | } | |
2081 | ||
2082 | #endif | |
2083 | ||
f8e42b8c NC |
2084 | /* Output all the relocations for a section. */ |
2085 | ||
252b5132 RH |
2086 | void |
2087 | do_relocs_for (abfd, h, file_cursor) | |
2088 | bfd * abfd; | |
2089 | object_headers * h; | |
2090 | unsigned long *file_cursor; | |
2091 | { | |
2092 | unsigned int nrelocs; | |
2093 | unsigned int idx; | |
2094 | unsigned long reloc_start = *file_cursor; | |
2095 | ||
2096 | for (idx = SEG_E0; idx < SEG_LAST; idx++) | |
2097 | { | |
2098 | if (segment_info[idx].scnhdr.s_name[0]) | |
2099 | { | |
2100 | struct external_reloc *ext_ptr; | |
2101 | struct external_reloc *external_reloc_vec; | |
2102 | unsigned int external_reloc_size; | |
2103 | unsigned int base = segment_info[idx].scnhdr.s_paddr; | |
2104 | fixS *fix_ptr = segment_info[idx].fix_root; | |
2105 | nrelocs = count_entries_in_chain (idx); | |
2106 | ||
2107 | if (nrelocs) | |
2108 | /* Bypass this stuff if no relocs. This also incidentally | |
2109 | avoids a SCO bug, where free(malloc(0)) tends to crash. */ | |
2110 | { | |
2111 | external_reloc_size = nrelocs * RELSZ; | |
2112 | external_reloc_vec = | |
2113 | (struct external_reloc *) malloc (external_reloc_size); | |
2114 | ||
2115 | ext_ptr = external_reloc_vec; | |
2116 | ||
2117 | /* Fill in the internal coff style reloc struct from the | |
2118 | internal fix list. */ | |
2119 | while (fix_ptr) | |
2120 | { | |
2121 | struct internal_reloc intr; | |
2122 | ||
f8e42b8c | 2123 | /* Only output some of the relocations. */ |
252b5132 RH |
2124 | if (fix_ptr->fx_done == 0 && TC_COUNT_RELOC (fix_ptr)) |
2125 | { | |
2126 | #ifdef TC_RELOC_MANGLE | |
2127 | TC_RELOC_MANGLE (&segment_info[idx], fix_ptr, &intr, | |
2128 | base); | |
252b5132 RH |
2129 | #else |
2130 | symbolS *dot; | |
2131 | symbolS *symbol_ptr = fix_ptr->fx_addsy; | |
2132 | ||
2133 | intr.r_type = TC_COFF_FIX2RTYPE (fix_ptr); | |
2134 | intr.r_vaddr = | |
2135 | base + fix_ptr->fx_frag->fr_address + fix_ptr->fx_where; | |
2136 | ||
2137 | #ifdef TC_KEEP_FX_OFFSET | |
2138 | intr.r_offset = fix_ptr->fx_offset; | |
2139 | #else | |
2140 | intr.r_offset = 0; | |
2141 | #endif | |
2142 | ||
2143 | while (symbol_ptr->sy_value.X_op == O_symbol | |
2144 | && (! S_IS_DEFINED (symbol_ptr) | |
2145 | || S_IS_COMMON (symbol_ptr))) | |
2146 | { | |
2147 | symbolS *n; | |
2148 | ||
2149 | /* We must avoid looping, as that can occur | |
2150 | with a badly written program. */ | |
2151 | n = symbol_ptr->sy_value.X_add_symbol; | |
2152 | if (n == symbol_ptr) | |
2153 | break; | |
2154 | symbol_ptr = n; | |
2155 | } | |
2156 | ||
2157 | /* Turn the segment of the symbol into an offset. */ | |
2158 | if (symbol_ptr) | |
2159 | { | |
6386f3a7 | 2160 | resolve_symbol_value (symbol_ptr); |
252b5132 RH |
2161 | if (! symbol_ptr->sy_resolved) |
2162 | { | |
2163 | char *file; | |
2164 | unsigned int line; | |
2165 | ||
2166 | if (expr_symbol_where (symbol_ptr, &file, &line)) | |
2167 | as_bad_where (file, line, | |
2168 | _("unresolved relocation")); | |
2169 | else | |
2170 | as_bad (_("bad relocation: symbol `%s' not in symbol table"), | |
2171 | S_GET_NAME (symbol_ptr)); | |
2172 | } | |
f8e42b8c | 2173 | |
252b5132 RH |
2174 | dot = segment_info[S_GET_SEGMENT (symbol_ptr)].dot; |
2175 | if (dot) | |
f8e42b8c | 2176 | intr.r_symndx = dot->sy_number; |
252b5132 | 2177 | else |
f8e42b8c | 2178 | intr.r_symndx = symbol_ptr->sy_number; |
252b5132 RH |
2179 | } |
2180 | else | |
f8e42b8c | 2181 | intr.r_symndx = -1; |
252b5132 | 2182 | #endif |
252b5132 RH |
2183 | (void) bfd_coff_swap_reloc_out (abfd, &intr, ext_ptr); |
2184 | ext_ptr++; | |
252b5132 | 2185 | #if defined(TC_A29K) |
252b5132 | 2186 | /* The 29k has a special kludge for the high 16 bit |
aaa2624b | 2187 | reloc. Two relocations are emitted, R_IHIHALF, |
252b5132 RH |
2188 | and R_IHCONST. The second one doesn't contain a |
2189 | symbol, but uses the value for offset. */ | |
252b5132 RH |
2190 | if (intr.r_type == R_IHIHALF) |
2191 | { | |
f8e42b8c | 2192 | /* Now emit the second bit. */ |
252b5132 RH |
2193 | intr.r_type = R_IHCONST; |
2194 | intr.r_symndx = fix_ptr->fx_addnumber; | |
2195 | (void) bfd_coff_swap_reloc_out (abfd, &intr, ext_ptr); | |
2196 | ext_ptr++; | |
2197 | } | |
3b16e843 NC |
2198 | #endif |
2199 | #if defined(TC_OR32) | |
2200 | /* The or32 has a special kludge for the high 16 bit | |
aaa2624b | 2201 | reloc. Two relocations are emitted, R_IHIHALF, |
3b16e843 NC |
2202 | and R_IHCONST. The second one doesn't contain a |
2203 | symbol, but uses the value for offset. */ | |
2204 | if (intr.r_type == R_IHIHALF) | |
2205 | { | |
2206 | /* Now emit the second bit. */ | |
2207 | intr.r_type = R_IHCONST; | |
2208 | intr.r_symndx = fix_ptr->fx_addnumber; | |
2209 | (void) bfd_coff_swap_reloc_out (abfd, & intr, ext_ptr); | |
2210 | ext_ptr ++; | |
2211 | } | |
252b5132 RH |
2212 | #endif |
2213 | } | |
2214 | ||
2215 | fix_ptr = fix_ptr->fx_next; | |
2216 | } | |
252b5132 | 2217 | #ifdef TE_AUX |
f8e42b8c | 2218 | /* Sort the reloc table. */ |
252b5132 RH |
2219 | qsort ((PTR) external_reloc_vec, nrelocs, |
2220 | sizeof (struct external_reloc), compare_external_relocs); | |
2221 | #endif | |
f8e42b8c | 2222 | /* Write out the reloc table. */ |
0e1a166b AM |
2223 | bfd_bwrite ((PTR) external_reloc_vec, |
2224 | (bfd_size_type) external_reloc_size, abfd); | |
252b5132 RH |
2225 | free (external_reloc_vec); |
2226 | ||
2227 | /* Fill in section header info. */ | |
2228 | segment_info[idx].scnhdr.s_relptr = *file_cursor; | |
2229 | *file_cursor += external_reloc_size; | |
2230 | segment_info[idx].scnhdr.s_nreloc = nrelocs; | |
2231 | } | |
2232 | else | |
2233 | { | |
f8e42b8c | 2234 | /* No relocs. */ |
252b5132 RH |
2235 | segment_info[idx].scnhdr.s_relptr = 0; |
2236 | } | |
2237 | } | |
2238 | } | |
f8e42b8c NC |
2239 | |
2240 | /* Set relocation_size field in file headers. */ | |
252b5132 RH |
2241 | H_SET_RELOCATION_SIZE (h, *file_cursor - reloc_start, 0); |
2242 | } | |
2243 | ||
f8e42b8c | 2244 | /* Run through a frag chain and write out the data to go with it, fill |
aaa2624b | 2245 | in the scnhdrs with the info on the file positions. */ |
f8e42b8c | 2246 | |
252b5132 RH |
2247 | static void |
2248 | fill_section (abfd, h, file_cursor) | |
2249 | bfd * abfd; | |
a04b544b | 2250 | object_headers *h ATTRIBUTE_UNUSED; |
252b5132 RH |
2251 | unsigned long *file_cursor; |
2252 | { | |
252b5132 RH |
2253 | unsigned int i; |
2254 | unsigned int paddr = 0; | |
2255 | ||
2256 | for (i = SEG_E0; i < SEG_UNKNOWN; i++) | |
2257 | { | |
2258 | unsigned int offset = 0; | |
2259 | struct internal_scnhdr *s = &(segment_info[i].scnhdr); | |
2260 | ||
2261 | PROGRESS (1); | |
2262 | ||
2263 | if (s->s_name[0]) | |
2264 | { | |
2265 | fragS *frag = segment_info[i].frchainP->frch_root; | |
ea3b9044 | 2266 | char *buffer = NULL; |
252b5132 RH |
2267 | |
2268 | if (s->s_size == 0) | |
2269 | s->s_scnptr = 0; | |
2270 | else | |
2271 | { | |
2272 | buffer = xmalloc (s->s_size); | |
2273 | s->s_scnptr = *file_cursor; | |
2274 | } | |
2275 | know (s->s_paddr == paddr); | |
2276 | ||
2277 | if (strcmp (s->s_name, ".text") == 0) | |
2278 | s->s_flags |= STYP_TEXT; | |
2279 | else if (strcmp (s->s_name, ".data") == 0) | |
2280 | s->s_flags |= STYP_DATA; | |
2281 | else if (strcmp (s->s_name, ".bss") == 0) | |
2282 | { | |
2283 | s->s_scnptr = 0; | |
2284 | s->s_flags |= STYP_BSS; | |
2285 | ||
2286 | /* @@ Should make the i386 and a29k coff targets define | |
2287 | COFF_NOLOAD_PROBLEM, and have only one test here. */ | |
2288 | #ifndef TC_I386 | |
2289 | #ifndef TC_A29K | |
3b16e843 | 2290 | #ifndef TC_OR32 |
252b5132 RH |
2291 | #ifndef COFF_NOLOAD_PROBLEM |
2292 | /* Apparently the SVR3 linker (and exec syscall) and UDI | |
2293 | mondfe progrem are confused by noload sections. */ | |
2294 | s->s_flags |= STYP_NOLOAD; | |
2295 | #endif | |
2296 | #endif | |
3b16e843 | 2297 | #endif |
252b5132 RH |
2298 | #endif |
2299 | } | |
2300 | else if (strcmp (s->s_name, ".lit") == 0) | |
2301 | s->s_flags = STYP_LIT | STYP_TEXT; | |
2302 | else if (strcmp (s->s_name, ".init") == 0) | |
2303 | s->s_flags |= STYP_TEXT; | |
2304 | else if (strcmp (s->s_name, ".fini") == 0) | |
2305 | s->s_flags |= STYP_TEXT; | |
2306 | else if (strncmp (s->s_name, ".comment", 8) == 0) | |
2307 | s->s_flags |= STYP_INFO; | |
2308 | ||
2309 | while (frag) | |
2310 | { | |
2311 | unsigned int fill_size; | |
2312 | switch (frag->fr_type) | |
2313 | { | |
2314 | case rs_machine_dependent: | |
2315 | if (frag->fr_fix) | |
2316 | { | |
2317 | memcpy (buffer + frag->fr_address, | |
2318 | frag->fr_literal, | |
2319 | (unsigned int) frag->fr_fix); | |
2320 | offset += frag->fr_fix; | |
2321 | } | |
2322 | ||
2323 | break; | |
2324 | case rs_space: | |
252b5132 RH |
2325 | case rs_fill: |
2326 | case rs_align: | |
2327 | case rs_align_code: | |
0a9ef439 | 2328 | case rs_align_test: |
252b5132 RH |
2329 | case rs_org: |
2330 | if (frag->fr_fix) | |
2331 | { | |
2332 | memcpy (buffer + frag->fr_address, | |
2333 | frag->fr_literal, | |
2334 | (unsigned int) frag->fr_fix); | |
2335 | offset += frag->fr_fix; | |
2336 | } | |
2337 | ||
2338 | fill_size = frag->fr_var; | |
2339 | if (fill_size && frag->fr_offset > 0) | |
2340 | { | |
2341 | unsigned int count; | |
2342 | unsigned int off = frag->fr_fix; | |
2343 | for (count = frag->fr_offset; count; count--) | |
2344 | { | |
2345 | if (fill_size + frag->fr_address + off <= s->s_size) | |
2346 | { | |
2347 | memcpy (buffer + frag->fr_address + off, | |
2348 | frag->fr_literal + frag->fr_fix, | |
2349 | fill_size); | |
2350 | off += fill_size; | |
2351 | offset += fill_size; | |
2352 | } | |
2353 | } | |
2354 | } | |
2355 | break; | |
2356 | case rs_broken_word: | |
2357 | break; | |
2358 | default: | |
2359 | abort (); | |
2360 | } | |
2361 | frag = frag->fr_next; | |
2362 | } | |
2363 | ||
2364 | if (s->s_size != 0) | |
2365 | { | |
2366 | if (s->s_scnptr != 0) | |
2367 | { | |
0e1a166b | 2368 | bfd_bwrite (buffer, s->s_size, abfd); |
252b5132 RH |
2369 | *file_cursor += s->s_size; |
2370 | } | |
2371 | free (buffer); | |
2372 | } | |
2373 | paddr += s->s_size; | |
2374 | } | |
2375 | } | |
2376 | } | |
2377 | ||
f8e42b8c | 2378 | /* Coff file generation & utilities. */ |
252b5132 RH |
2379 | |
2380 | static void | |
2381 | coff_header_append (abfd, h) | |
2382 | bfd * abfd; | |
2383 | object_headers * h; | |
2384 | { | |
2385 | unsigned int i; | |
2386 | char buffer[1000]; | |
2387 | char buffero[1000]; | |
2388 | #ifdef COFF_LONG_SECTION_NAMES | |
2389 | unsigned long string_size = 4; | |
2390 | #endif | |
2391 | ||
0e1a166b | 2392 | bfd_seek (abfd, (file_ptr) 0, 0); |
252b5132 RH |
2393 | |
2394 | #ifndef OBJ_COFF_OMIT_OPTIONAL_HEADER | |
2395 | H_SET_MAGIC_NUMBER (h, COFF_MAGIC); | |
2396 | H_SET_VERSION_STAMP (h, 0); | |
2397 | H_SET_ENTRY_POINT (h, 0); | |
2398 | H_SET_TEXT_START (h, segment_info[SEG_E0].frchainP->frch_root->fr_address); | |
2399 | H_SET_DATA_START (h, segment_info[SEG_E1].frchainP->frch_root->fr_address); | |
2400 | H_SET_SIZEOF_OPTIONAL_HEADER (h, bfd_coff_swap_aouthdr_out(abfd, &h->aouthdr, | |
2401 | buffero)); | |
2402 | #else /* defined (OBJ_COFF_OMIT_OPTIONAL_HEADER) */ | |
2403 | H_SET_SIZEOF_OPTIONAL_HEADER (h, 0); | |
2404 | #endif /* defined (OBJ_COFF_OMIT_OPTIONAL_HEADER) */ | |
2405 | ||
2406 | i = bfd_coff_swap_filehdr_out (abfd, &h->filehdr, buffer); | |
2407 | ||
0e1a166b AM |
2408 | bfd_bwrite (buffer, (bfd_size_type) i, abfd); |
2409 | bfd_bwrite (buffero, (bfd_size_type) H_GET_SIZEOF_OPTIONAL_HEADER (h), abfd); | |
252b5132 RH |
2410 | |
2411 | for (i = SEG_E0; i < SEG_LAST; i++) | |
2412 | { | |
2413 | if (segment_info[i].scnhdr.s_name[0]) | |
2414 | { | |
2415 | unsigned int size; | |
2416 | ||
2417 | #ifdef COFF_LONG_SECTION_NAMES | |
2418 | /* Support long section names as found in PE. This code | |
2419 | must coordinate with that in write_object_file and | |
2420 | w_strings. */ | |
2421 | if (strlen (segment_info[i].name) > SCNNMLEN) | |
2422 | { | |
2423 | memset (segment_info[i].scnhdr.s_name, 0, SCNNMLEN); | |
2424 | sprintf (segment_info[i].scnhdr.s_name, "/%lu", string_size); | |
2425 | string_size += strlen (segment_info[i].name) + 1; | |
2426 | } | |
2427 | #endif | |
252b5132 RH |
2428 | size = bfd_coff_swap_scnhdr_out (abfd, |
2429 | &(segment_info[i].scnhdr), | |
2430 | buffer); | |
2431 | if (size == 0) | |
2432 | as_bad (_("bfd_coff_swap_scnhdr_out failed")); | |
0e1a166b | 2433 | bfd_bwrite (buffer, (bfd_size_type) size, abfd); |
252b5132 RH |
2434 | } |
2435 | } | |
2436 | } | |
2437 | ||
252b5132 RH |
2438 | char * |
2439 | symbol_to_chars (abfd, where, symbolP) | |
2440 | bfd * abfd; | |
2441 | char *where; | |
2442 | symbolS * symbolP; | |
2443 | { | |
2444 | unsigned int numaux = symbolP->sy_symbol.ost_entry.n_numaux; | |
2445 | unsigned int i; | |
2446 | valueT val; | |
2447 | ||
f8e42b8c | 2448 | /* Turn any symbols with register attributes into abs symbols. */ |
252b5132 | 2449 | if (S_GET_SEGMENT (symbolP) == reg_section) |
f8e42b8c | 2450 | S_SET_SEGMENT (symbolP, absolute_section); |
252b5132 | 2451 | |
f8e42b8c | 2452 | /* At the same time, relocate all symbols to their output value. */ |
252b5132 RH |
2453 | #ifndef TE_PE |
2454 | val = (segment_info[S_GET_SEGMENT (symbolP)].scnhdr.s_paddr | |
2455 | + S_GET_VALUE (symbolP)); | |
2456 | #else | |
2457 | val = S_GET_VALUE (symbolP); | |
2458 | #endif | |
2459 | ||
2460 | S_SET_VALUE (symbolP, val); | |
2461 | ||
2462 | symbolP->sy_symbol.ost_entry.n_value = val; | |
2463 | ||
2464 | where += bfd_coff_swap_sym_out (abfd, &symbolP->sy_symbol.ost_entry, | |
2465 | where); | |
2466 | ||
2467 | for (i = 0; i < numaux; i++) | |
2468 | { | |
2469 | where += bfd_coff_swap_aux_out (abfd, | |
2470 | &symbolP->sy_symbol.ost_auxent[i], | |
2471 | S_GET_DATA_TYPE (symbolP), | |
2472 | S_GET_STORAGE_CLASS (symbolP), | |
2473 | i, numaux, where); | |
2474 | } | |
252b5132 | 2475 | |
f8e42b8c | 2476 | return where; |
252b5132 RH |
2477 | } |
2478 | ||
2479 | void | |
2480 | coff_obj_symbol_new_hook (symbolP) | |
2481 | symbolS *symbolP; | |
2482 | { | |
f8e42b8c | 2483 | char underscore = 0; /* Symbol has leading _ */ |
252b5132 | 2484 | |
f8e42b8c | 2485 | /* Effective symbol. */ |
dcd619be | 2486 | /* Store the pointer in the offset. */ |
252b5132 RH |
2487 | S_SET_ZEROES (symbolP, 0L); |
2488 | S_SET_DATA_TYPE (symbolP, T_NULL); | |
2489 | S_SET_STORAGE_CLASS (symbolP, 0); | |
2490 | S_SET_NUMBER_AUXILIARY (symbolP, 0); | |
f8e42b8c | 2491 | /* Additional information. */ |
252b5132 | 2492 | symbolP->sy_symbol.ost_flags = 0; |
f8e42b8c | 2493 | /* Auxiliary entries. */ |
252b5132 RH |
2494 | memset ((char *) &symbolP->sy_symbol.ost_auxent[0], 0, AUXESZ); |
2495 | ||
2496 | if (S_IS_STRING (symbolP)) | |
2497 | SF_SET_STRING (symbolP); | |
2498 | if (!underscore && S_IS_LOCAL (symbolP)) | |
2499 | SF_SET_LOCAL (symbolP); | |
2500 | } | |
2501 | ||
f8e42b8c | 2502 | /* Handle .ln directives. */ |
252b5132 RH |
2503 | |
2504 | static void | |
2505 | obj_coff_ln (appline) | |
2506 | int appline; | |
2507 | { | |
2508 | int l; | |
2509 | ||
2510 | if (! appline && def_symbol_in_progress != NULL) | |
2511 | { | |
f8e42b8c | 2512 | /* Wrong context. */ |
252b5132 RH |
2513 | as_warn (_(".ln pseudo-op inside .def/.endef: ignored.")); |
2514 | demand_empty_rest_of_line (); | |
2515 | return; | |
f8e42b8c | 2516 | } |
252b5132 RH |
2517 | |
2518 | l = get_absolute_expression (); | |
2519 | c_line_new (0, frag_now_fix (), l, frag_now); | |
2520 | ||
2521 | if (appline) | |
2522 | new_logical_line ((char *) NULL, l - 1); | |
2523 | ||
2524 | #ifndef NO_LISTING | |
2525 | { | |
2526 | extern int listing; | |
2527 | ||
2528 | if (listing) | |
2529 | { | |
2530 | if (! appline) | |
2531 | l += line_base - 1; | |
2532 | listing_source_line ((unsigned int) l); | |
2533 | } | |
2534 | ||
2535 | } | |
2536 | #endif | |
2537 | demand_empty_rest_of_line (); | |
2538 | } | |
2539 | ||
f8e42b8c NC |
2540 | /* Handle .def directives. |
2541 | ||
2542 | One might ask : why can't we symbol_new if the symbol does not | |
2543 | already exist and fill it with debug information. Because of | |
2544 | the C_EFCN special symbol. It would clobber the value of the | |
2545 | function symbol before we have a chance to notice that it is | |
2546 | a C_EFCN. And a second reason is that the code is more clear this | |
2547 | way. (at least I think it is :-). */ | |
252b5132 RH |
2548 | |
2549 | #define SKIP_SEMI_COLON() while (*input_line_pointer++ != ';') | |
2550 | #define SKIP_WHITESPACES() while (*input_line_pointer == ' ' || \ | |
2551 | *input_line_pointer == '\t') \ | |
2552 | input_line_pointer++; | |
2553 | ||
2554 | static void | |
2555 | obj_coff_def (what) | |
a04b544b | 2556 | int what ATTRIBUTE_UNUSED; |
252b5132 | 2557 | { |
f8e42b8c NC |
2558 | char name_end; /* Char after the end of name. */ |
2559 | char *symbol_name; /* Name of the debug symbol. */ | |
2560 | char *symbol_name_copy; /* Temporary copy of the name. */ | |
252b5132 RH |
2561 | unsigned int symbol_name_length; |
2562 | ||
2563 | if (def_symbol_in_progress != NULL) | |
2564 | { | |
2565 | as_warn (_(".def pseudo-op used inside of .def/.endef: ignored.")); | |
2566 | demand_empty_rest_of_line (); | |
2567 | return; | |
f8e42b8c | 2568 | } |
252b5132 RH |
2569 | |
2570 | SKIP_WHITESPACES (); | |
2571 | ||
2572 | def_symbol_in_progress = (symbolS *) obstack_alloc (¬es, sizeof (*def_symbol_in_progress)); | |
2573 | memset (def_symbol_in_progress, 0, sizeof (*def_symbol_in_progress)); | |
2574 | ||
2575 | symbol_name = input_line_pointer; | |
2576 | name_end = get_symbol_end (); | |
2577 | symbol_name_length = strlen (symbol_name); | |
2578 | symbol_name_copy = xmalloc (symbol_name_length + 1); | |
2579 | strcpy (symbol_name_copy, symbol_name); | |
2580 | #ifdef tc_canonicalize_symbol_name | |
2581 | symbol_name_copy = tc_canonicalize_symbol_name (symbol_name_copy); | |
2582 | #endif | |
2583 | ||
f8e42b8c | 2584 | /* Initialize the new symbol. */ |
252b5132 RH |
2585 | #ifdef STRIP_UNDERSCORE |
2586 | S_SET_NAME (def_symbol_in_progress, (*symbol_name_copy == '_' | |
2587 | ? symbol_name_copy + 1 | |
2588 | : symbol_name_copy)); | |
2589 | #else /* STRIP_UNDERSCORE */ | |
2590 | S_SET_NAME (def_symbol_in_progress, symbol_name_copy); | |
2591 | #endif /* STRIP_UNDERSCORE */ | |
2592 | /* free(symbol_name_copy); */ | |
2593 | def_symbol_in_progress->sy_name_offset = (unsigned long) ~0; | |
2594 | def_symbol_in_progress->sy_number = ~0; | |
2595 | def_symbol_in_progress->sy_frag = &zero_address_frag; | |
2596 | S_SET_VALUE (def_symbol_in_progress, 0); | |
2597 | ||
2598 | if (S_IS_STRING (def_symbol_in_progress)) | |
2599 | SF_SET_STRING (def_symbol_in_progress); | |
2600 | ||
2601 | *input_line_pointer = name_end; | |
2602 | ||
2603 | demand_empty_rest_of_line (); | |
2604 | } | |
2605 | ||
2606 | unsigned int dim_index; | |
2607 | ||
252b5132 RH |
2608 | static void |
2609 | obj_coff_endef (ignore) | |
a04b544b | 2610 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2611 | { |
2612 | symbolS *symbolP = 0; | |
2613 | /* DIM BUG FIX sac@cygnus.com */ | |
2614 | dim_index = 0; | |
2615 | if (def_symbol_in_progress == NULL) | |
2616 | { | |
2617 | as_warn (_(".endef pseudo-op used outside of .def/.endef: ignored.")); | |
2618 | demand_empty_rest_of_line (); | |
2619 | return; | |
f8e42b8c | 2620 | } |
252b5132 | 2621 | |
dcd619be | 2622 | /* Set the section number according to storage class. */ |
252b5132 RH |
2623 | switch (S_GET_STORAGE_CLASS (def_symbol_in_progress)) |
2624 | { | |
2625 | case C_STRTAG: | |
2626 | case C_ENTAG: | |
2627 | case C_UNTAG: | |
2628 | SF_SET_TAG (def_symbol_in_progress); | |
f8e42b8c NC |
2629 | /* Intentional fallthrough. */ |
2630 | ||
252b5132 RH |
2631 | case C_FILE: |
2632 | case C_TPDEF: | |
2633 | SF_SET_DEBUG (def_symbol_in_progress); | |
2634 | S_SET_SEGMENT (def_symbol_in_progress, SEG_DEBUG); | |
2635 | break; | |
2636 | ||
2637 | case C_EFCN: | |
f8e42b8c NC |
2638 | /* Do not emit this symbol. */ |
2639 | SF_SET_LOCAL (def_symbol_in_progress); | |
2640 | /* Intentional fallthrough. */ | |
2641 | ||
252b5132 | 2642 | case C_BLOCK: |
f8e42b8c NC |
2643 | /* Will need processing before writing. */ |
2644 | SF_SET_PROCESS (def_symbol_in_progress); | |
2645 | /* Intentional fallthrough. */ | |
2646 | ||
252b5132 RH |
2647 | case C_FCN: |
2648 | S_SET_SEGMENT (def_symbol_in_progress, SEG_E0); | |
2649 | ||
2650 | if (strcmp (S_GET_NAME (def_symbol_in_progress), ".bf") == 0) | |
2651 | { /* .bf */ | |
2652 | if (function_lineoff < 0) | |
f8e42b8c NC |
2653 | fprintf (stderr, _("`.bf' symbol without preceding function\n")); |
2654 | ||
252b5132 RH |
2655 | SA_GET_SYM_LNNOPTR (last_line_symbol) = function_lineoff; |
2656 | ||
2657 | SF_SET_PROCESS (last_line_symbol); | |
2658 | SF_SET_ADJ_LNNOPTR (last_line_symbol); | |
2659 | SF_SET_PROCESS (def_symbol_in_progress); | |
2660 | function_lineoff = -1; | |
2661 | } | |
f8e42b8c | 2662 | |
dcd619be | 2663 | /* Value is always set to . */ |
252b5132 RH |
2664 | def_symbol_in_progress->sy_frag = frag_now; |
2665 | S_SET_VALUE (def_symbol_in_progress, (valueT) frag_now_fix ()); | |
2666 | break; | |
2667 | ||
2668 | #ifdef C_AUTOARG | |
2669 | case C_AUTOARG: | |
2670 | #endif /* C_AUTOARG */ | |
2671 | case C_AUTO: | |
2672 | case C_REG: | |
2673 | case C_MOS: | |
2674 | case C_MOE: | |
2675 | case C_MOU: | |
2676 | case C_ARG: | |
2677 | case C_REGPARM: | |
2678 | case C_FIELD: | |
2679 | case C_EOS: | |
2680 | SF_SET_DEBUG (def_symbol_in_progress); | |
2681 | S_SET_SEGMENT (def_symbol_in_progress, absolute_section); | |
2682 | break; | |
2683 | ||
2684 | case C_EXT: | |
2685 | case C_WEAKEXT: | |
2686 | #ifdef TE_PE | |
2687 | case C_NT_WEAK: | |
2688 | #endif | |
2689 | case C_STAT: | |
2690 | case C_LABEL: | |
f8e42b8c | 2691 | /* Valid but set somewhere else (s_comm, s_lcomm, colon). */ |
252b5132 RH |
2692 | break; |
2693 | ||
2694 | case C_USTATIC: | |
2695 | case C_EXTDEF: | |
2696 | case C_ULABEL: | |
2697 | as_warn (_("unexpected storage class %d"), S_GET_STORAGE_CLASS (def_symbol_in_progress)); | |
2698 | break; | |
f8e42b8c | 2699 | } |
252b5132 RH |
2700 | |
2701 | /* Now that we have built a debug symbol, try to find if we should | |
2702 | merge with an existing symbol or not. If a symbol is C_EFCN or | |
2703 | absolute_section or untagged SEG_DEBUG it never merges. We also | |
2704 | don't merge labels, which are in a different namespace, nor | |
2705 | symbols which have not yet been defined since they are typically | |
2706 | unique, nor do we merge tags with non-tags. */ | |
2707 | ||
2708 | /* Two cases for functions. Either debug followed by definition or | |
2709 | definition followed by debug. For definition first, we will | |
2710 | merge the debug symbol into the definition. For debug first, the | |
2711 | lineno entry MUST point to the definition function or else it | |
2712 | will point off into space when crawl_symbols() merges the debug | |
2713 | symbol into the real symbol. Therefor, let's presume the debug | |
dcd619be | 2714 | symbol is a real function reference. */ |
252b5132 RH |
2715 | |
2716 | /* FIXME-SOON If for some reason the definition label/symbol is | |
2717 | never seen, this will probably leave an undefined symbol at link | |
dcd619be | 2718 | time. */ |
252b5132 RH |
2719 | |
2720 | if (S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_EFCN | |
2721 | || S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_LABEL | |
2722 | || (S_GET_SEGMENT (def_symbol_in_progress) == SEG_DEBUG | |
2723 | && !SF_GET_TAG (def_symbol_in_progress)) | |
2724 | || S_GET_SEGMENT (def_symbol_in_progress) == absolute_section | |
2725 | || def_symbol_in_progress->sy_value.X_op != O_constant | |
2726 | || (symbolP = symbol_find_base (S_GET_NAME (def_symbol_in_progress), DO_NOT_STRIP)) == NULL | |
2727 | || (SF_GET_TAG (def_symbol_in_progress) != SF_GET_TAG (symbolP))) | |
2728 | { | |
2729 | symbol_append (def_symbol_in_progress, symbol_lastP, &symbol_rootP, | |
2730 | &symbol_lastP); | |
2731 | } | |
2732 | else | |
2733 | { | |
2734 | /* This symbol already exists, merge the newly created symbol | |
2735 | into the old one. This is not mandatory. The linker can | |
2736 | handle duplicate symbols correctly. But I guess that it save | |
2737 | a *lot* of space if the assembly file defines a lot of | |
2738 | symbols. [loic] */ | |
2739 | ||
2740 | /* The debug entry (def_symbol_in_progress) is merged into the | |
2741 | previous definition. */ | |
2742 | ||
2743 | c_symbol_merge (def_symbol_in_progress, symbolP); | |
dcd619be | 2744 | /* FIXME-SOON Should *def_symbol_in_progress be free'd? xoxorich. */ |
252b5132 RH |
2745 | def_symbol_in_progress = symbolP; |
2746 | ||
2747 | if (SF_GET_FUNCTION (def_symbol_in_progress) | |
2748 | || SF_GET_TAG (def_symbol_in_progress) | |
2749 | || S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_STAT) | |
2750 | { | |
2751 | /* For functions, and tags, and static symbols, the symbol | |
2752 | *must* be where the debug symbol appears. Move the | |
dcd619be | 2753 | existing symbol to the current place. */ |
f8e42b8c | 2754 | /* If it already is at the end of the symbol list, do nothing. */ |
252b5132 RH |
2755 | if (def_symbol_in_progress != symbol_lastP) |
2756 | { | |
2757 | symbol_remove (def_symbol_in_progress, &symbol_rootP, | |
2758 | &symbol_lastP); | |
2759 | symbol_append (def_symbol_in_progress, symbol_lastP, | |
2760 | &symbol_rootP, &symbol_lastP); | |
f8e42b8c NC |
2761 | } |
2762 | } | |
2763 | } | |
252b5132 RH |
2764 | |
2765 | if (SF_GET_TAG (def_symbol_in_progress)) | |
2766 | { | |
2767 | symbolS *oldtag; | |
2768 | ||
2769 | oldtag = symbol_find_base (S_GET_NAME (def_symbol_in_progress), | |
2770 | DO_NOT_STRIP); | |
2771 | if (oldtag == NULL || ! SF_GET_TAG (oldtag)) | |
2772 | tag_insert (S_GET_NAME (def_symbol_in_progress), | |
2773 | def_symbol_in_progress); | |
2774 | } | |
2775 | ||
2776 | if (SF_GET_FUNCTION (def_symbol_in_progress)) | |
2777 | { | |
2778 | know (sizeof (def_symbol_in_progress) <= sizeof (long)); | |
2779 | function_lineoff | |
2780 | = c_line_new (def_symbol_in_progress, 0, 0, &zero_address_frag); | |
2781 | ||
2782 | SF_SET_PROCESS (def_symbol_in_progress); | |
2783 | ||
2784 | if (symbolP == NULL) | |
2785 | { | |
2786 | /* That is, if this is the first time we've seen the | |
dcd619be | 2787 | function... */ |
252b5132 | 2788 | symbol_table_insert (def_symbol_in_progress); |
f8e42b8c NC |
2789 | } |
2790 | } | |
252b5132 RH |
2791 | |
2792 | def_symbol_in_progress = NULL; | |
2793 | demand_empty_rest_of_line (); | |
2794 | } | |
2795 | ||
2796 | static void | |
2797 | obj_coff_dim (ignore) | |
a04b544b | 2798 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2799 | { |
2800 | int dim_index; | |
2801 | ||
2802 | if (def_symbol_in_progress == NULL) | |
2803 | { | |
2804 | as_warn (_(".dim pseudo-op used outside of .def/.endef: ignored.")); | |
2805 | demand_empty_rest_of_line (); | |
2806 | return; | |
f8e42b8c | 2807 | } |
252b5132 RH |
2808 | |
2809 | S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); | |
2810 | ||
2811 | for (dim_index = 0; dim_index < DIMNUM; dim_index++) | |
2812 | { | |
2813 | SKIP_WHITESPACES (); | |
2814 | SA_SET_SYM_DIMEN (def_symbol_in_progress, dim_index, | |
2815 | get_absolute_expression ()); | |
2816 | ||
2817 | switch (*input_line_pointer) | |
2818 | { | |
2819 | case ',': | |
2820 | input_line_pointer++; | |
2821 | break; | |
2822 | ||
2823 | default: | |
2824 | as_warn (_("badly formed .dim directive ignored")); | |
f8e42b8c NC |
2825 | /* Intentional fallthrough. */ |
2826 | ||
252b5132 RH |
2827 | case '\n': |
2828 | case ';': | |
2829 | dim_index = DIMNUM; | |
2830 | break; | |
2831 | } | |
2832 | } | |
2833 | ||
2834 | demand_empty_rest_of_line (); | |
2835 | } | |
2836 | ||
2837 | static void | |
2838 | obj_coff_line (ignore) | |
a04b544b | 2839 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2840 | { |
2841 | int this_base; | |
2842 | const char *name; | |
2843 | ||
2844 | if (def_symbol_in_progress == NULL) | |
2845 | { | |
2846 | obj_coff_ln (0); | |
2847 | return; | |
2848 | } | |
2849 | ||
2850 | name = S_GET_NAME (def_symbol_in_progress); | |
2851 | this_base = get_absolute_expression (); | |
2852 | ||
2853 | /* Only .bf symbols indicate the use of a new base line number; the | |
2854 | line numbers associated with .ef, .bb, .eb are relative to the | |
2855 | start of the containing function. */ | |
2856 | if (!strcmp (".bf", name)) | |
2857 | { | |
2858 | #if 0 /* XXX Can we ever have line numbers going backwards? */ | |
2859 | if (this_base > line_base) | |
2860 | #endif | |
f8e42b8c | 2861 | line_base = this_base; |
252b5132 RH |
2862 | |
2863 | #ifndef NO_LISTING | |
2864 | { | |
2865 | extern int listing; | |
2866 | if (listing) | |
f8e42b8c | 2867 | listing_source_line ((unsigned int) line_base); |
252b5132 RH |
2868 | } |
2869 | #endif | |
2870 | } | |
2871 | ||
2872 | S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); | |
2873 | SA_SET_SYM_LNNO (def_symbol_in_progress, this_base); | |
2874 | ||
2875 | demand_empty_rest_of_line (); | |
2876 | } | |
2877 | ||
2878 | static void | |
2879 | obj_coff_size (ignore) | |
a04b544b | 2880 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2881 | { |
2882 | if (def_symbol_in_progress == NULL) | |
2883 | { | |
2884 | as_warn (_(".size pseudo-op used outside of .def/.endef ignored.")); | |
2885 | demand_empty_rest_of_line (); | |
2886 | return; | |
f8e42b8c | 2887 | } |
252b5132 RH |
2888 | |
2889 | S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); | |
2890 | SA_SET_SYM_SIZE (def_symbol_in_progress, get_absolute_expression ()); | |
2891 | demand_empty_rest_of_line (); | |
2892 | } | |
2893 | ||
2894 | static void | |
2895 | obj_coff_scl (ignore) | |
a04b544b | 2896 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2897 | { |
2898 | if (def_symbol_in_progress == NULL) | |
2899 | { | |
2900 | as_warn (_(".scl pseudo-op used outside of .def/.endef ignored.")); | |
2901 | demand_empty_rest_of_line (); | |
2902 | return; | |
f8e42b8c | 2903 | } |
252b5132 RH |
2904 | |
2905 | S_SET_STORAGE_CLASS (def_symbol_in_progress, get_absolute_expression ()); | |
2906 | demand_empty_rest_of_line (); | |
2907 | } | |
2908 | ||
2909 | static void | |
2910 | obj_coff_tag (ignore) | |
a04b544b | 2911 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2912 | { |
2913 | char *symbol_name; | |
2914 | char name_end; | |
2915 | ||
2916 | if (def_symbol_in_progress == NULL) | |
2917 | { | |
2918 | as_warn (_(".tag pseudo-op used outside of .def/.endef ignored.")); | |
2919 | demand_empty_rest_of_line (); | |
2920 | return; | |
2921 | } | |
2922 | ||
2923 | S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); | |
2924 | symbol_name = input_line_pointer; | |
2925 | name_end = get_symbol_end (); | |
2926 | #ifdef tc_canonicalize_symbol_name | |
2927 | symbol_name = tc_canonicalize_symbol_name (symbol_name); | |
2928 | #endif | |
2929 | ||
2930 | /* Assume that the symbol referred to by .tag is always defined. | |
dcd619be | 2931 | This was a bad assumption. I've added find_or_make. xoxorich. */ |
252b5132 RH |
2932 | SA_SET_SYM_TAGNDX (def_symbol_in_progress, |
2933 | (long) tag_find_or_make (symbol_name)); | |
2934 | if (SA_GET_SYM_TAGNDX (def_symbol_in_progress) == 0L) | |
f8e42b8c | 2935 | as_warn (_("tag not found for .tag %s"), symbol_name); |
252b5132 RH |
2936 | |
2937 | SF_SET_TAGGED (def_symbol_in_progress); | |
2938 | *input_line_pointer = name_end; | |
2939 | ||
2940 | demand_empty_rest_of_line (); | |
2941 | } | |
2942 | ||
2943 | static void | |
2944 | obj_coff_type (ignore) | |
a04b544b | 2945 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2946 | { |
2947 | if (def_symbol_in_progress == NULL) | |
2948 | { | |
2949 | as_warn (_(".type pseudo-op used outside of .def/.endef ignored.")); | |
2950 | demand_empty_rest_of_line (); | |
2951 | return; | |
f8e42b8c | 2952 | } |
252b5132 RH |
2953 | |
2954 | S_SET_DATA_TYPE (def_symbol_in_progress, get_absolute_expression ()); | |
2955 | ||
2956 | if (ISFCN (S_GET_DATA_TYPE (def_symbol_in_progress)) && | |
2957 | S_GET_STORAGE_CLASS (def_symbol_in_progress) != C_TPDEF) | |
f8e42b8c | 2958 | SF_SET_FUNCTION (def_symbol_in_progress); |
252b5132 RH |
2959 | |
2960 | demand_empty_rest_of_line (); | |
2961 | } | |
2962 | ||
2963 | static void | |
2964 | obj_coff_val (ignore) | |
a04b544b | 2965 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
2966 | { |
2967 | if (def_symbol_in_progress == NULL) | |
2968 | { | |
2969 | as_warn (_(".val pseudo-op used outside of .def/.endef ignored.")); | |
2970 | demand_empty_rest_of_line (); | |
2971 | return; | |
f8e42b8c | 2972 | } |
252b5132 RH |
2973 | |
2974 | if (is_name_beginner (*input_line_pointer)) | |
2975 | { | |
2976 | char *symbol_name = input_line_pointer; | |
2977 | char name_end = get_symbol_end (); | |
2978 | ||
2979 | #ifdef tc_canonicalize_symbol_name | |
2980 | symbol_name = tc_canonicalize_symbol_name (symbol_name); | |
2981 | #endif | |
2982 | ||
2983 | if (!strcmp (symbol_name, ".")) | |
2984 | { | |
2985 | def_symbol_in_progress->sy_frag = frag_now; | |
2986 | S_SET_VALUE (def_symbol_in_progress, (valueT) frag_now_fix ()); | |
f8e42b8c | 2987 | /* If the .val is != from the .def (e.g. statics). */ |
252b5132 RH |
2988 | } |
2989 | else if (strcmp (S_GET_NAME (def_symbol_in_progress), symbol_name)) | |
2990 | { | |
2991 | def_symbol_in_progress->sy_value.X_op = O_symbol; | |
2992 | def_symbol_in_progress->sy_value.X_add_symbol = | |
2993 | symbol_find_or_make (symbol_name); | |
2994 | def_symbol_in_progress->sy_value.X_op_symbol = NULL; | |
2995 | def_symbol_in_progress->sy_value.X_add_number = 0; | |
2996 | ||
2997 | /* If the segment is undefined when the forward reference is | |
2998 | resolved, then copy the segment id from the forward | |
2999 | symbol. */ | |
3000 | SF_SET_GET_SEGMENT (def_symbol_in_progress); | |
3001 | ||
0561a208 ILT |
3002 | /* FIXME: gcc can generate address expressions here in |
3003 | unusual cases (search for "obscure" in sdbout.c). We | |
3004 | just ignore the offset here, thus generating incorrect | |
3005 | debugging information. We ignore the rest of the line | |
3006 | just below. */ | |
252b5132 RH |
3007 | } |
3008 | /* Otherwise, it is the name of a non debug symbol and | |
dcd619be | 3009 | its value will be calculated later. */ |
252b5132 RH |
3010 | *input_line_pointer = name_end; |
3011 | ||
3012 | /* FIXME: this is to avoid an error message in the | |
3013 | FIXME case mentioned just above. */ | |
3014 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
3015 | ++input_line_pointer; | |
3016 | } | |
3017 | else | |
3018 | { | |
3019 | S_SET_VALUE (def_symbol_in_progress, | |
3020 | (valueT) get_absolute_expression ()); | |
3021 | } /* if symbol based */ | |
3022 | ||
3023 | demand_empty_rest_of_line (); | |
3024 | } | |
3025 | ||
3026 | #ifdef TE_PE | |
3027 | ||
3028 | /* Handle the .linkonce pseudo-op. This is parsed by s_linkonce in | |
3029 | read.c, which then calls this object file format specific routine. */ | |
3030 | ||
3031 | void | |
3032 | obj_coff_pe_handle_link_once (type) | |
3033 | enum linkonce_type type; | |
3034 | { | |
3035 | seg_info (now_seg)->scnhdr.s_flags |= IMAGE_SCN_LNK_COMDAT; | |
3036 | ||
3037 | /* We store the type in the seg_info structure, and use it to set up | |
3038 | the auxiliary entry for the section symbol in c_section_symbol. */ | |
3039 | seg_info (now_seg)->linkonce = type; | |
3040 | } | |
3041 | ||
3042 | #endif /* TE_PE */ | |
3043 | ||
3044 | void | |
3045 | coff_obj_read_begin_hook () | |
3046 | { | |
dcd619be | 3047 | /* These had better be the same. Usually 18 bytes. */ |
252b5132 RH |
3048 | #ifndef BFD_HEADERS |
3049 | know (sizeof (SYMENT) == sizeof (AUXENT)); | |
3050 | know (SYMESZ == AUXESZ); | |
3051 | #endif | |
3052 | tag_init (); | |
3053 | } | |
3054 | ||
3055 | /* This function runs through the symbol table and puts all the | |
f8e42b8c | 3056 | externals onto another chain. */ |
252b5132 RH |
3057 | |
3058 | /* The chain of globals. */ | |
3059 | symbolS *symbol_globalP; | |
3060 | symbolS *symbol_global_lastP; | |
3061 | ||
f8e42b8c | 3062 | /* The chain of externals. */ |
252b5132 RH |
3063 | symbolS *symbol_externP; |
3064 | symbolS *symbol_extern_lastP; | |
3065 | ||
3066 | stack *block_stack; | |
3067 | symbolS *last_functionP; | |
3068 | static symbolS *last_bfP; | |
3069 | symbolS *last_tagP; | |
3070 | ||
3071 | static unsigned int | |
3072 | yank_symbols () | |
3073 | { | |
3074 | symbolS *symbolP; | |
3075 | unsigned int symbol_number = 0; | |
3076 | unsigned int last_file_symno = 0; | |
3077 | ||
3078 | struct filename_list *filename_list_scan = filename_list_head; | |
3079 | ||
3080 | for (symbolP = symbol_rootP; | |
3081 | symbolP; | |
3082 | symbolP = symbolP ? symbol_next (symbolP) : symbol_rootP) | |
3083 | { | |
3084 | if (symbolP->sy_mri_common) | |
3085 | { | |
3086 | if (S_GET_STORAGE_CLASS (symbolP) == C_EXT | |
3087 | #ifdef TE_PE | |
3088 | || S_GET_STORAGE_CLASS (symbolP) == C_NT_WEAK | |
3089 | #endif | |
3090 | || S_GET_STORAGE_CLASS (symbolP) == C_WEAKEXT) | |
3091 | as_bad (_("%s: global symbols not supported in common sections"), | |
3092 | S_GET_NAME (symbolP)); | |
3093 | symbol_remove (symbolP, &symbol_rootP, &symbol_lastP); | |
3094 | continue; | |
3095 | } | |
3096 | ||
3097 | if (!SF_GET_DEBUG (symbolP)) | |
3098 | { | |
f8e42b8c | 3099 | /* Debug symbols do not need all this rubbish. */ |
252b5132 RH |
3100 | symbolS *real_symbolP; |
3101 | ||
dcd619be | 3102 | /* L* and C_EFCN symbols never merge. */ |
252b5132 RH |
3103 | if (!SF_GET_LOCAL (symbolP) |
3104 | && !SF_GET_STATICS (symbolP) | |
3105 | && S_GET_STORAGE_CLASS (symbolP) != C_LABEL | |
3106 | && symbolP->sy_value.X_op == O_constant | |
3107 | && (real_symbolP = symbol_find_base (S_GET_NAME (symbolP), DO_NOT_STRIP)) | |
3108 | && real_symbolP != symbolP) | |
3109 | { | |
3110 | /* FIXME-SOON: where do dups come from? | |
dcd619be | 3111 | Maybe tag references before definitions? xoxorich. */ |
252b5132 | 3112 | /* Move the debug data from the debug symbol to the |
aaa2624b | 3113 | real symbol. Do NOT do the opposite (i.e. move from |
252b5132 RH |
3114 | real symbol to debug symbol and remove real symbol from the |
3115 | list.) Because some pointers refer to the real symbol | |
dcd619be | 3116 | whereas no pointers refer to the debug symbol. */ |
252b5132 | 3117 | c_symbol_merge (symbolP, real_symbolP); |
f8e42b8c | 3118 | /* Replace the current symbol by the real one. */ |
252b5132 RH |
3119 | /* The symbols will never be the last or the first |
3120 | because : 1st symbol is .file and 3 last symbols are | |
f8e42b8c | 3121 | .text, .data, .bss. */ |
252b5132 RH |
3122 | symbol_remove (real_symbolP, &symbol_rootP, &symbol_lastP); |
3123 | symbol_insert (real_symbolP, symbolP, &symbol_rootP, &symbol_lastP); | |
3124 | symbol_remove (symbolP, &symbol_rootP, &symbol_lastP); | |
3125 | symbolP = real_symbolP; | |
f8e42b8c | 3126 | } |
252b5132 RH |
3127 | |
3128 | if (flag_readonly_data_in_text && (S_GET_SEGMENT (symbolP) == SEG_E1)) | |
f8e42b8c | 3129 | S_SET_SEGMENT (symbolP, SEG_E0); |
252b5132 | 3130 | |
6386f3a7 | 3131 | resolve_symbol_value (symbolP); |
252b5132 RH |
3132 | |
3133 | if (S_GET_STORAGE_CLASS (symbolP) == C_NULL) | |
3134 | { | |
3135 | if (!S_IS_DEFINED (symbolP) && !SF_GET_LOCAL (symbolP)) | |
3136 | { | |
3137 | S_SET_EXTERNAL (symbolP); | |
3138 | } | |
f8e42b8c | 3139 | |
252b5132 | 3140 | else if (S_GET_SEGMENT (symbolP) == SEG_E0) |
f8e42b8c NC |
3141 | S_SET_STORAGE_CLASS (symbolP, C_LABEL); |
3142 | ||
252b5132 | 3143 | else |
f8e42b8c | 3144 | S_SET_STORAGE_CLASS (symbolP, C_STAT); |
252b5132 RH |
3145 | } |
3146 | ||
f8e42b8c | 3147 | /* Mainly to speed up if not -g. */ |
252b5132 RH |
3148 | if (SF_GET_PROCESS (symbolP)) |
3149 | { | |
dcd619be | 3150 | /* Handle the nested blocks auxiliary info. */ |
252b5132 RH |
3151 | if (S_GET_STORAGE_CLASS (symbolP) == C_BLOCK) |
3152 | { | |
3153 | if (!strcmp (S_GET_NAME (symbolP), ".bb")) | |
3154 | stack_push (block_stack, (char *) &symbolP); | |
3155 | else | |
f8e42b8c NC |
3156 | { |
3157 | /* .eb */ | |
3158 | symbolS *begin_symbolP; | |
3159 | ||
252b5132 RH |
3160 | begin_symbolP = *(symbolS **) stack_pop (block_stack); |
3161 | if (begin_symbolP == (symbolS *) 0) | |
3162 | as_warn (_("mismatched .eb")); | |
3163 | else | |
3164 | SA_SET_SYM_ENDNDX (begin_symbolP, symbol_number + 2); | |
3165 | } | |
3166 | } | |
3167 | /* If we are able to identify the type of a function, and we | |
3168 | are out of a function (last_functionP == 0) then, the | |
3169 | function symbol will be associated with an auxiliary | |
dcd619be | 3170 | entry. */ |
252b5132 RH |
3171 | if (last_functionP == (symbolS *) 0 && |
3172 | SF_GET_FUNCTION (symbolP)) | |
3173 | { | |
3174 | last_functionP = symbolP; | |
3175 | ||
3176 | if (S_GET_NUMBER_AUXILIARY (symbolP) < 1) | |
f8e42b8c | 3177 | S_SET_NUMBER_AUXILIARY (symbolP, 1); |
252b5132 | 3178 | |
dcd619be | 3179 | /* Clobber possible stale .dim information. */ |
252b5132 | 3180 | #if 0 |
f8e42b8c | 3181 | /* Iffed out by steve - this fries the lnnoptr info too. */ |
252b5132 RH |
3182 | bzero (symbolP->sy_symbol.ost_auxent[0].x_sym.x_fcnary.x_ary.x_dimen, |
3183 | sizeof (symbolP->sy_symbol.ost_auxent[0].x_sym.x_fcnary.x_ary.x_dimen)); | |
3184 | #endif | |
3185 | } | |
3186 | if (S_GET_STORAGE_CLASS (symbolP) == C_FCN) | |
3187 | { | |
3188 | if (strcmp (S_GET_NAME (symbolP), ".bf") == 0) | |
3189 | { | |
3190 | if (last_bfP != NULL) | |
3191 | SA_SET_SYM_ENDNDX (last_bfP, symbol_number); | |
3192 | last_bfP = symbolP; | |
3193 | } | |
3194 | } | |
3195 | else if (S_GET_STORAGE_CLASS (symbolP) == C_EFCN) | |
3196 | { | |
3197 | /* I don't even know if this is needed for sdb. But | |
3198 | the standard assembler generates it, so... */ | |
3199 | if (last_functionP == (symbolS *) 0) | |
3200 | as_fatal (_("C_EFCN symbol out of scope")); | |
3201 | SA_SET_SYM_FSIZE (last_functionP, | |
3202 | (long) (S_GET_VALUE (symbolP) - | |
3203 | S_GET_VALUE (last_functionP))); | |
3204 | SA_SET_SYM_ENDNDX (last_functionP, symbol_number); | |
3205 | last_functionP = (symbolS *) 0; | |
3206 | } | |
3207 | } | |
3208 | } | |
3209 | else if (SF_GET_TAG (symbolP)) | |
3210 | { | |
3211 | /* First descriptor of a structure must point to | |
f8e42b8c | 3212 | the first slot after the structure description. */ |
252b5132 RH |
3213 | last_tagP = symbolP; |
3214 | ||
3215 | } | |
3216 | else if (S_GET_STORAGE_CLASS (symbolP) == C_EOS) | |
3217 | { | |
f8e42b8c | 3218 | /* +2 take in account the current symbol. */ |
252b5132 RH |
3219 | SA_SET_SYM_ENDNDX (last_tagP, symbol_number + 2); |
3220 | } | |
3221 | else if (S_GET_STORAGE_CLASS (symbolP) == C_FILE) | |
3222 | { | |
3223 | /* If the filename was too long to fit in the | |
f8e42b8c | 3224 | auxent, put it in the string table. */ |
252b5132 RH |
3225 | if (SA_GET_FILE_FNAME_ZEROS (symbolP) == 0 |
3226 | && SA_GET_FILE_FNAME_OFFSET (symbolP) != 0) | |
3227 | { | |
3228 | SA_SET_FILE_FNAME_OFFSET (symbolP, string_byte_count); | |
3229 | string_byte_count += strlen (filename_list_scan->filename) + 1; | |
3230 | filename_list_scan = filename_list_scan->next; | |
3231 | } | |
3232 | if (S_GET_VALUE (symbolP)) | |
3233 | { | |
3234 | S_SET_VALUE (symbolP, last_file_symno); | |
3235 | last_file_symno = symbol_number; | |
f8e42b8c NC |
3236 | } |
3237 | } | |
252b5132 RH |
3238 | |
3239 | #ifdef tc_frob_coff_symbol | |
3240 | tc_frob_coff_symbol (symbolP); | |
3241 | #endif | |
3242 | ||
3243 | /* We must put the external symbols apart. The loader | |
3244 | does not bomb if we do not. But the references in | |
3245 | the endndx field for a .bb symbol are not corrected | |
3246 | if an external symbol is removed between .bb and .be. | |
3247 | I.e in the following case : | |
3248 | [20] .bb endndx = 22 | |
3249 | [21] foo external | |
3250 | [22] .be | |
3251 | ld will move the symbol 21 to the end of the list but | |
dcd619be | 3252 | endndx will still be 22 instead of 21. */ |
252b5132 RH |
3253 | |
3254 | if (SF_GET_LOCAL (symbolP)) | |
3255 | { | |
f8e42b8c NC |
3256 | /* Remove C_EFCN and LOCAL (L...) symbols. */ |
3257 | /* Next pointer remains valid. */ | |
252b5132 RH |
3258 | symbol_remove (symbolP, &symbol_rootP, &symbol_lastP); |
3259 | ||
3260 | } | |
3261 | else if (symbolP->sy_value.X_op == O_symbol | |
3262 | && (! S_IS_DEFINED (symbolP) || S_IS_COMMON (symbolP))) | |
3263 | { | |
3264 | /* Skip symbols which were equated to undefined or common | |
3265 | symbols. */ | |
3266 | symbol_remove (symbolP, &symbol_rootP, &symbol_lastP); | |
3267 | } | |
3268 | else if (!S_IS_DEFINED (symbolP) | |
3269 | && !S_IS_DEBUG (symbolP) | |
3270 | && !SF_GET_STATICS (symbolP) | |
3271 | && (S_GET_STORAGE_CLASS (symbolP) == C_EXT | |
3272 | #ifdef TE_PE | |
3273 | || S_GET_STORAGE_CLASS (symbolP) == C_NT_WEAK | |
3274 | #endif | |
3275 | || S_GET_STORAGE_CLASS (symbolP) == C_WEAKEXT)) | |
3276 | { | |
f8e42b8c | 3277 | /* If external, Remove from the list. */ |
252b5132 RH |
3278 | symbolS *hold = symbol_previous (symbolP); |
3279 | ||
3280 | symbol_remove (symbolP, &symbol_rootP, &symbol_lastP); | |
3281 | symbol_clear_list_pointers (symbolP); | |
3282 | symbol_append (symbolP, symbol_extern_lastP, &symbol_externP, &symbol_extern_lastP); | |
3283 | symbolP = hold; | |
3284 | } | |
3285 | else if (! S_IS_DEBUG (symbolP) | |
3286 | && ! SF_GET_STATICS (symbolP) | |
3287 | && ! SF_GET_FUNCTION (symbolP) | |
3288 | && (S_GET_STORAGE_CLASS (symbolP) == C_EXT | |
3289 | #ifdef TE_PE | |
3290 | || S_GET_STORAGE_CLASS (symbolP) == C_NT_WEAK | |
3291 | #endif | |
3292 | || S_GET_STORAGE_CLASS (symbolP) == C_NT_WEAK)) | |
3293 | { | |
3294 | symbolS *hold = symbol_previous (symbolP); | |
3295 | ||
3296 | /* The O'Reilly COFF book says that defined global symbols | |
3297 | come at the end of the symbol table, just before | |
3298 | undefined global symbols. */ | |
252b5132 RH |
3299 | symbol_remove (symbolP, &symbol_rootP, &symbol_lastP); |
3300 | symbol_clear_list_pointers (symbolP); | |
3301 | symbol_append (symbolP, symbol_global_lastP, &symbol_globalP, | |
3302 | &symbol_global_lastP); | |
3303 | symbolP = hold; | |
3304 | } | |
3305 | else | |
3306 | { | |
3307 | if (SF_GET_STRING (symbolP)) | |
3308 | { | |
3309 | symbolP->sy_name_offset = string_byte_count; | |
3310 | string_byte_count += strlen (S_GET_NAME (symbolP)) + 1; | |
3311 | } | |
3312 | else | |
3313 | { | |
3314 | symbolP->sy_name_offset = 0; | |
f8e42b8c | 3315 | } |
252b5132 RH |
3316 | |
3317 | symbolP->sy_number = symbol_number; | |
3318 | symbol_number += 1 + S_GET_NUMBER_AUXILIARY (symbolP); | |
f8e42b8c NC |
3319 | } |
3320 | } | |
252b5132 | 3321 | |
f8e42b8c | 3322 | return symbol_number; |
252b5132 RH |
3323 | } |
3324 | ||
252b5132 RH |
3325 | static unsigned int |
3326 | glue_symbols (head, tail) | |
3327 | symbolS **head; | |
3328 | symbolS **tail; | |
3329 | { | |
3330 | unsigned int symbol_number = 0; | |
3331 | ||
3332 | while (*head != NULL) | |
3333 | { | |
3334 | symbolS *tmp = *head; | |
3335 | ||
f8e42b8c | 3336 | /* Append. */ |
252b5132 RH |
3337 | symbol_remove (tmp, head, tail); |
3338 | symbol_append (tmp, symbol_lastP, &symbol_rootP, &symbol_lastP); | |
3339 | ||
f8e42b8c | 3340 | /* Process. */ |
252b5132 RH |
3341 | if (SF_GET_STRING (tmp)) |
3342 | { | |
3343 | tmp->sy_name_offset = string_byte_count; | |
3344 | string_byte_count += strlen (S_GET_NAME (tmp)) + 1; | |
3345 | } | |
3346 | else | |
3347 | { | |
f8e42b8c | 3348 | /* Fix "long" names. */ |
252b5132 | 3349 | tmp->sy_name_offset = 0; |
f8e42b8c | 3350 | } |
252b5132 RH |
3351 | |
3352 | tmp->sy_number = symbol_number; | |
3353 | symbol_number += 1 + S_GET_NUMBER_AUXILIARY (tmp); | |
f8e42b8c | 3354 | } |
252b5132 RH |
3355 | |
3356 | return symbol_number; | |
3357 | } | |
3358 | ||
3359 | static unsigned int | |
3360 | tie_tags () | |
3361 | { | |
3362 | unsigned int symbol_number = 0; | |
3363 | symbolS *symbolP; | |
3364 | ||
3365 | for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next (symbolP)) | |
3366 | { | |
3367 | symbolP->sy_number = symbol_number; | |
3368 | ||
3369 | if (SF_GET_TAGGED (symbolP)) | |
3370 | { | |
3371 | SA_SET_SYM_TAGNDX | |
3372 | (symbolP, | |
3373 | ((symbolS *) SA_GET_SYM_TAGNDX (symbolP))->sy_number); | |
3374 | } | |
3375 | ||
3376 | symbol_number += 1 + S_GET_NUMBER_AUXILIARY (symbolP); | |
3377 | } | |
3378 | ||
3379 | return symbol_number; | |
3380 | } | |
3381 | ||
f8e42b8c | 3382 | |
252b5132 RH |
3383 | static void |
3384 | crawl_symbols (h, abfd) | |
3385 | object_headers *h; | |
a04b544b | 3386 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
3387 | { |
3388 | unsigned int i; | |
3389 | ||
f8e42b8c | 3390 | /* Initialize the stack used to keep track of the matching .bb .be. */ |
252b5132 RH |
3391 | |
3392 | block_stack = stack_init (512, sizeof (symbolS *)); | |
3393 | ||
3394 | /* The symbol list should be ordered according to the following sequence | |
f8e42b8c NC |
3395 | order : |
3396 | . .file symbol | |
3397 | . debug entries for functions | |
3398 | . fake symbols for the sections, including .text .data and .bss | |
3399 | . defined symbols | |
3400 | . undefined symbols | |
3401 | But this is not mandatory. The only important point is to put the | |
3402 | undefined symbols at the end of the list. */ | |
252b5132 | 3403 | |
dcd619be | 3404 | /* Is there a .file symbol ? If not insert one at the beginning. */ |
252b5132 RH |
3405 | if (symbol_rootP == NULL |
3406 | || S_GET_STORAGE_CLASS (symbol_rootP) != C_FILE) | |
f8e42b8c | 3407 | c_dot_file_symbol ("fake"); |
252b5132 | 3408 | |
f8e42b8c | 3409 | /* Build up static symbols for the sections, they are filled in later. */ |
252b5132 | 3410 | |
252b5132 RH |
3411 | for (i = SEG_E0; i < SEG_LAST; i++) |
3412 | if (segment_info[i].scnhdr.s_name[0]) | |
f8e42b8c | 3413 | segment_info[i].dot = c_section_symbol ((char *) segment_info[i].name, |
252b5132 RH |
3414 | i - SEG_E0 + 1); |
3415 | ||
f8e42b8c | 3416 | /* Take all the externals out and put them into another chain. */ |
252b5132 | 3417 | H_SET_SYMBOL_TABLE_SIZE (h, yank_symbols ()); |
f8e42b8c | 3418 | /* Take the externals and glue them onto the end. */ |
252b5132 RH |
3419 | H_SET_SYMBOL_TABLE_SIZE (h, |
3420 | (H_GET_SYMBOL_COUNT (h) | |
3421 | + glue_symbols (&symbol_globalP, | |
3422 | &symbol_global_lastP) | |
3423 | + glue_symbols (&symbol_externP, | |
3424 | &symbol_extern_lastP))); | |
3425 | ||
3426 | H_SET_SYMBOL_TABLE_SIZE (h, tie_tags ()); | |
3427 | know (symbol_globalP == NULL); | |
3428 | know (symbol_global_lastP == NULL); | |
3429 | know (symbol_externP == NULL); | |
3430 | know (symbol_extern_lastP == NULL); | |
3431 | } | |
3432 | ||
f8e42b8c | 3433 | /* Find strings by crawling along symbol table chain. */ |
252b5132 RH |
3434 | |
3435 | void | |
3436 | w_strings (where) | |
3437 | char *where; | |
3438 | { | |
3439 | symbolS *symbolP; | |
3440 | struct filename_list *filename_list_scan = filename_list_head; | |
3441 | ||
f8e42b8c | 3442 | /* Gotta do md_ byte-ordering stuff for string_byte_count first - KWK. */ |
252b5132 RH |
3443 | md_number_to_chars (where, (valueT) string_byte_count, 4); |
3444 | where += 4; | |
3445 | ||
3446 | #ifdef COFF_LONG_SECTION_NAMES | |
3447 | /* Support long section names as found in PE. This code must | |
3448 | coordinate with that in coff_header_append and write_object_file. */ | |
3449 | { | |
3450 | unsigned int i; | |
3451 | ||
3452 | for (i = SEG_E0; i < SEG_LAST; i++) | |
3453 | { | |
3454 | if (segment_info[i].scnhdr.s_name[0] | |
3455 | && strlen (segment_info[i].name) > SCNNMLEN) | |
3456 | { | |
3457 | unsigned int size; | |
3458 | ||
3459 | size = strlen (segment_info[i].name) + 1; | |
3460 | memcpy (where, segment_info[i].name, size); | |
3461 | where += size; | |
3462 | } | |
3463 | } | |
3464 | } | |
3465 | #endif /* COFF_LONG_SECTION_NAMES */ | |
3466 | ||
3467 | for (symbolP = symbol_rootP; | |
3468 | symbolP; | |
3469 | symbolP = symbol_next (symbolP)) | |
3470 | { | |
3471 | unsigned int size; | |
3472 | ||
3473 | if (SF_GET_STRING (symbolP)) | |
3474 | { | |
3475 | size = strlen (S_GET_NAME (symbolP)) + 1; | |
3476 | memcpy (where, S_GET_NAME (symbolP), size); | |
3477 | where += size; | |
3478 | } | |
3479 | if (S_GET_STORAGE_CLASS (symbolP) == C_FILE | |
3480 | && SA_GET_FILE_FNAME_ZEROS (symbolP) == 0 | |
3481 | && SA_GET_FILE_FNAME_OFFSET (symbolP) != 0) | |
3482 | { | |
3483 | size = strlen (filename_list_scan->filename) + 1; | |
3484 | memcpy (where, filename_list_scan->filename, size); | |
3485 | filename_list_scan = filename_list_scan ->next; | |
3486 | where += size; | |
3487 | } | |
3488 | } | |
3489 | } | |
3490 | ||
3491 | static void | |
3492 | do_linenos_for (abfd, h, file_cursor) | |
3493 | bfd * abfd; | |
3494 | object_headers * h; | |
3495 | unsigned long *file_cursor; | |
3496 | { | |
3497 | unsigned int idx; | |
3498 | unsigned long start = *file_cursor; | |
3499 | ||
3500 | for (idx = SEG_E0; idx < SEG_LAST; idx++) | |
3501 | { | |
3502 | segment_info_type *s = segment_info + idx; | |
3503 | ||
252b5132 RH |
3504 | if (s->scnhdr.s_nlnno != 0) |
3505 | { | |
3506 | struct lineno_list *line_ptr; | |
3507 | ||
3508 | struct external_lineno *buffer = | |
3509 | (struct external_lineno *) xmalloc (s->scnhdr.s_nlnno * LINESZ); | |
3510 | ||
3511 | struct external_lineno *dst = buffer; | |
3512 | ||
3513 | /* Run through the table we've built and turn it into its external | |
f8e42b8c | 3514 | form, take this chance to remove duplicates. */ |
252b5132 RH |
3515 | |
3516 | for (line_ptr = s->lineno_list_head; | |
3517 | line_ptr != (struct lineno_list *) NULL; | |
3518 | line_ptr = line_ptr->next) | |
3519 | { | |
252b5132 RH |
3520 | if (line_ptr->line.l_lnno == 0) |
3521 | { | |
ea3b9044 NC |
3522 | /* Turn a pointer to a symbol into the symbols' index, |
3523 | provided that it has been initialised. */ | |
3524 | if (line_ptr->line.l_addr.l_symndx) | |
3525 | line_ptr->line.l_addr.l_symndx = | |
3526 | ((symbolS *) line_ptr->line.l_addr.l_symndx)->sy_number; | |
252b5132 RH |
3527 | } |
3528 | else | |
f8e42b8c | 3529 | line_ptr->line.l_addr.l_paddr += ((struct frag *) (line_ptr->frag))->fr_address; |
252b5132 | 3530 | |
252b5132 RH |
3531 | (void) bfd_coff_swap_lineno_out (abfd, &(line_ptr->line), dst); |
3532 | dst++; | |
252b5132 RH |
3533 | } |
3534 | ||
3535 | s->scnhdr.s_lnnoptr = *file_cursor; | |
3536 | ||
0e1a166b | 3537 | bfd_bwrite (buffer, (bfd_size_type) s->scnhdr.s_nlnno * LINESZ, abfd); |
252b5132 RH |
3538 | free (buffer); |
3539 | ||
3540 | *file_cursor += s->scnhdr.s_nlnno * LINESZ; | |
3541 | } | |
3542 | } | |
f8e42b8c | 3543 | |
252b5132 RH |
3544 | H_SET_LINENO_SIZE (h, *file_cursor - start); |
3545 | } | |
3546 | ||
252b5132 RH |
3547 | /* Now we run through the list of frag chains in a segment and |
3548 | make all the subsegment frags appear at the end of the | |
f8e42b8c | 3549 | list, as if the seg 0 was extra long. */ |
252b5132 RH |
3550 | |
3551 | static void | |
3552 | remove_subsegs () | |
3553 | { | |
3554 | unsigned int i; | |
3555 | ||
3556 | for (i = SEG_E0; i < SEG_UNKNOWN; i++) | |
3557 | { | |
3558 | frchainS *head = segment_info[i].frchainP; | |
3559 | fragS dummy; | |
3560 | fragS *prev_frag = &dummy; | |
3561 | ||
3562 | while (head && head->frch_seg == i) | |
3563 | { | |
3564 | prev_frag->fr_next = head->frch_root; | |
3565 | prev_frag = head->frch_last; | |
3566 | head = head->frch_next; | |
3567 | } | |
3568 | prev_frag->fr_next = 0; | |
3569 | } | |
3570 | } | |
3571 | ||
3572 | unsigned long machine; | |
3573 | int coff_flags; | |
f8e42b8c | 3574 | |
18e1d487 AM |
3575 | #ifndef SUB_SEGMENT_ALIGN |
3576 | #ifdef HANDLE_ALIGN | |
aaa2624b | 3577 | /* The last subsegment gets an alignment corresponding to the alignment |
18e1d487 AM |
3578 | of the section. This allows proper nop-filling at the end of |
3579 | code-bearing sections. */ | |
3580 | #define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) \ | |
3581 | (!(FRCHAIN)->frch_next || (FRCHAIN)->frch_next->frch_seg != (SEG) \ | |
3582 | ? get_recorded_alignment (SEG) : 0) | |
3583 | #else | |
3584 | #define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) 1 | |
3585 | #endif | |
3586 | #endif | |
3587 | ||
252b5132 RH |
3588 | extern void |
3589 | write_object_file () | |
3590 | { | |
3591 | int i; | |
3592 | const char *name; | |
3593 | struct frchain *frchain_ptr; | |
3594 | ||
3595 | object_headers headers; | |
3596 | unsigned long file_cursor; | |
3597 | bfd *abfd; | |
3598 | unsigned int addr; | |
3599 | abfd = bfd_openw (out_file_name, TARGET_FORMAT); | |
3600 | ||
252b5132 RH |
3601 | if (abfd == 0) |
3602 | { | |
3603 | as_perror (_("FATAL: Can't create %s"), out_file_name); | |
3604 | exit (EXIT_FAILURE); | |
3605 | } | |
3606 | bfd_set_format (abfd, bfd_object); | |
3607 | bfd_set_arch_mach (abfd, BFD_ARCH, machine); | |
3608 | ||
3609 | string_byte_count = 4; | |
3610 | ||
18e1d487 AM |
3611 | /* Run through all the sub-segments and align them up. Also |
3612 | close any open frags. We tack a .fill onto the end of the | |
3613 | frag chain so that any .align's size can be worked by looking | |
3614 | at the next frag. */ | |
252b5132 RH |
3615 | for (frchain_ptr = frchain_root; |
3616 | frchain_ptr != (struct frchain *) NULL; | |
3617 | frchain_ptr = frchain_ptr->frch_next) | |
3618 | { | |
18e1d487 | 3619 | int alignment; |
252b5132 RH |
3620 | |
3621 | subseg_set (frchain_ptr->frch_seg, frchain_ptr->frch_subseg); | |
b9e57a38 | 3622 | |
e9732b6d | 3623 | alignment = SUB_SEGMENT_ALIGN (now_seg, frchain_ptr); |
18e1d487 | 3624 | |
252b5132 | 3625 | #ifdef md_do_align |
18e1d487 | 3626 | md_do_align (alignment, (char *) NULL, 0, 0, alignment_done); |
252b5132 | 3627 | #endif |
0a9ef439 | 3628 | if (subseg_text_p (now_seg)) |
18e1d487 | 3629 | frag_align_code (alignment, 0); |
0a9ef439 | 3630 | else |
18e1d487 | 3631 | frag_align (alignment, 0, 0); |
0a9ef439 | 3632 | |
252b5132 RH |
3633 | #ifdef md_do_align |
3634 | alignment_done: | |
3635 | #endif | |
0a9ef439 | 3636 | |
252b5132 RH |
3637 | frag_wane (frag_now); |
3638 | frag_now->fr_fix = 0; | |
3639 | know (frag_now->fr_next == NULL); | |
3640 | } | |
3641 | ||
252b5132 RH |
3642 | remove_subsegs (); |
3643 | ||
252b5132 | 3644 | for (i = SEG_E0; i < SEG_UNKNOWN; i++) |
f8e42b8c | 3645 | relax_segment (segment_info[i].frchainP->frch_root, i); |
252b5132 | 3646 | |
1cd55018 AM |
3647 | /* Relaxation has completed. Freeze all syms. */ |
3648 | finalize_syms = 1; | |
3649 | ||
252b5132 RH |
3650 | H_SET_NUMBER_OF_SECTIONS (&headers, 0); |
3651 | ||
3652 | /* Find out how big the sections are, and set the addresses. */ | |
3653 | addr = 0; | |
3654 | for (i = SEG_E0; i < SEG_UNKNOWN; i++) | |
3655 | { | |
3656 | long size; | |
3657 | ||
3658 | segment_info[i].scnhdr.s_paddr = addr; | |
3659 | segment_info[i].scnhdr.s_vaddr = addr; | |
3660 | ||
3661 | if (segment_info[i].scnhdr.s_name[0]) | |
3662 | { | |
3663 | H_SET_NUMBER_OF_SECTIONS (&headers, | |
3664 | H_GET_NUMBER_OF_SECTIONS (&headers) + 1); | |
3665 | ||
3666 | #ifdef COFF_LONG_SECTION_NAMES | |
3667 | /* Support long section names as found in PE. This code | |
3668 | must coordinate with that in coff_header_append and | |
3669 | w_strings. */ | |
3670 | { | |
3671 | unsigned int len; | |
3672 | ||
3673 | len = strlen (segment_info[i].name); | |
3674 | if (len > SCNNMLEN) | |
3675 | string_byte_count += len + 1; | |
3676 | } | |
3677 | #endif /* COFF_LONG_SECTION_NAMES */ | |
3678 | } | |
3679 | ||
3680 | size = size_section (abfd, (unsigned int) i); | |
3681 | addr += size; | |
3682 | ||
3683 | /* I think the section alignment is only used on the i960; the | |
3684 | i960 needs it, and it should do no harm on other targets. */ | |
3685 | #ifdef ALIGNMENT_IN_S_FLAGS | |
3686 | segment_info[i].scnhdr.s_flags |= (section_alignment[i] & 0xF) << 8; | |
3687 | #else | |
3688 | segment_info[i].scnhdr.s_align = 1 << section_alignment[i]; | |
3689 | #endif | |
3690 | ||
3691 | if (i == SEG_E0) | |
3692 | H_SET_TEXT_SIZE (&headers, size); | |
3693 | else if (i == SEG_E1) | |
3694 | H_SET_DATA_SIZE (&headers, size); | |
3695 | else if (i == SEG_E2) | |
3696 | H_SET_BSS_SIZE (&headers, size); | |
3697 | } | |
3698 | ||
f8e42b8c | 3699 | /* Turn the gas native symbol table shape into a coff symbol table. */ |
252b5132 RH |
3700 | crawl_symbols (&headers, abfd); |
3701 | ||
3702 | if (string_byte_count == 4) | |
3703 | string_byte_count = 0; | |
3704 | ||
3705 | H_SET_STRING_SIZE (&headers, string_byte_count); | |
3706 | ||
3707 | #ifdef tc_frob_file | |
3708 | tc_frob_file (); | |
3709 | #endif | |
3710 | ||
3711 | for (i = SEG_E0; i < SEG_UNKNOWN; i++) | |
3712 | { | |
3713 | fixup_mdeps (segment_info[i].frchainP->frch_root, &headers, i); | |
3714 | fixup_segment (&segment_info[i], i); | |
3715 | } | |
3716 | ||
3717 | /* Look for ".stab" segments and fill in their initial symbols | |
dcd619be | 3718 | correctly. */ |
252b5132 RH |
3719 | for (i = SEG_E0; i < SEG_UNKNOWN; i++) |
3720 | { | |
3721 | name = segment_info[i].name; | |
3722 | ||
3723 | if (name != NULL | |
3724 | && strncmp (".stab", name, 5) == 0 | |
3725 | && strncmp (".stabstr", name, 8) != 0) | |
3726 | adjust_stab_section (abfd, i); | |
3727 | } | |
3728 | ||
3729 | file_cursor = H_GET_TEXT_FILE_OFFSET (&headers); | |
3730 | ||
3731 | bfd_seek (abfd, (file_ptr) file_cursor, 0); | |
3732 | ||
f8e42b8c | 3733 | /* Plant the data. */ |
252b5132 RH |
3734 | fill_section (abfd, &headers, &file_cursor); |
3735 | ||
3736 | do_relocs_for (abfd, &headers, &file_cursor); | |
3737 | ||
3738 | do_linenos_for (abfd, &headers, &file_cursor); | |
3739 | ||
3740 | H_SET_FILE_MAGIC_NUMBER (&headers, COFF_MAGIC); | |
3741 | #ifndef OBJ_COFF_OMIT_TIMESTAMP | |
3742 | H_SET_TIME_STAMP (&headers, (long)time((time_t *)0)); | |
3743 | #else | |
3744 | H_SET_TIME_STAMP (&headers, 0); | |
3745 | #endif | |
3746 | #ifdef TC_COFF_SET_MACHINE | |
3747 | TC_COFF_SET_MACHINE (&headers); | |
3748 | #endif | |
3749 | ||
3750 | #ifndef COFF_FLAGS | |
3751 | #define COFF_FLAGS 0 | |
3752 | #endif | |
3753 | ||
3754 | #ifdef KEEP_RELOC_INFO | |
3755 | H_SET_FLAGS (&headers, ((H_GET_LINENO_SIZE(&headers) ? 0 : F_LNNO) | | |
3756 | COFF_FLAGS | coff_flags)); | |
3757 | #else | |
3758 | H_SET_FLAGS (&headers, ((H_GET_LINENO_SIZE(&headers) ? 0 : F_LNNO) | | |
3759 | (H_GET_RELOCATION_SIZE(&headers) ? 0 : F_RELFLG) | | |
3760 | COFF_FLAGS | coff_flags)); | |
3761 | #endif | |
3762 | ||
3763 | { | |
3764 | unsigned int symtable_size = H_GET_SYMBOL_TABLE_SIZE (&headers); | |
3765 | char *buffer1 = xmalloc (symtable_size + string_byte_count + 1); | |
3766 | ||
3767 | H_SET_SYMBOL_TABLE_POINTER (&headers, bfd_tell (abfd)); | |
3768 | w_symbols (abfd, buffer1, symbol_rootP); | |
3769 | if (string_byte_count > 0) | |
3770 | w_strings (buffer1 + symtable_size); | |
0e1a166b AM |
3771 | bfd_bwrite (buffer1, (bfd_size_type) symtable_size + string_byte_count, |
3772 | abfd); | |
252b5132 RH |
3773 | free (buffer1); |
3774 | } | |
3775 | ||
3776 | coff_header_append (abfd, &headers); | |
3777 | #if 0 | |
3778 | /* Recent changes to write need this, but where it should | |
dcd619be | 3779 | go is up to Ken.. */ |
b34976b6 | 3780 | if (!bfd_close_all_done (abfd)) |
252b5132 RH |
3781 | as_fatal (_("Can't close %s: %s"), out_file_name, |
3782 | bfd_errmsg (bfd_get_error ())); | |
3783 | #else | |
3784 | { | |
3785 | extern bfd *stdoutput; | |
3786 | stdoutput = abfd; | |
3787 | } | |
3788 | #endif | |
3789 | ||
3790 | } | |
3791 | ||
3792 | /* Add a new segment. This is called from subseg_new via the | |
3793 | obj_new_segment macro. */ | |
3794 | ||
3795 | segT | |
3796 | obj_coff_add_segment (name) | |
3797 | const char *name; | |
3798 | { | |
3799 | unsigned int i; | |
3800 | ||
3801 | #ifndef COFF_LONG_SECTION_NAMES | |
3802 | char buf[SCNNMLEN + 1]; | |
3803 | ||
3804 | strncpy (buf, name, SCNNMLEN); | |
3805 | buf[SCNNMLEN] = '\0'; | |
3806 | name = buf; | |
3807 | #endif | |
3808 | ||
3809 | for (i = SEG_E0; i < SEG_LAST && segment_info[i].scnhdr.s_name[0]; i++) | |
3810 | if (strcmp (name, segment_info[i].name) == 0) | |
3811 | return (segT) i; | |
3812 | ||
3813 | if (i == SEG_LAST) | |
3814 | { | |
3815 | as_bad (_("Too many new sections; can't add \"%s\""), name); | |
3816 | return now_seg; | |
3817 | } | |
3818 | ||
3819 | /* Add a new section. */ | |
3820 | strncpy (segment_info[i].scnhdr.s_name, name, | |
3821 | sizeof (segment_info[i].scnhdr.s_name)); | |
3822 | segment_info[i].scnhdr.s_flags = STYP_REG; | |
3823 | segment_info[i].name = xstrdup (name); | |
3824 | ||
3825 | return (segT) i; | |
3826 | } | |
3827 | ||
f8e42b8c NC |
3828 | /* Implement the .section pseudo op: |
3829 | .section name {, "flags"} | |
3830 | ^ ^ | |
3831 | | +--- optional flags: 'b' for bss | |
3832 | | 'i' for info | |
3833 | +-- section name 'l' for lib | |
3834 | 'n' for noload | |
3835 | 'o' for over | |
3836 | 'w' for data | |
3837 | 'd' (apparently m88k for data) | |
3838 | 'x' for text | |
3839 | 'r' for read-only data | |
3840 | But if the argument is not a quoted string, treat it as a | |
3841 | subsegment number. */ | |
252b5132 RH |
3842 | |
3843 | void | |
3844 | obj_coff_section (ignore) | |
a04b544b | 3845 | int ignore ATTRIBUTE_UNUSED; |
252b5132 | 3846 | { |
f8e42b8c | 3847 | /* Strip out the section name. */ |
252b5132 RH |
3848 | char *section_name, *name; |
3849 | char c; | |
3850 | unsigned int exp; | |
3851 | long flags; | |
3852 | ||
3853 | if (flag_mri) | |
3854 | { | |
3855 | char type; | |
3856 | ||
3857 | s_mri_sect (&type); | |
3858 | flags = 0; | |
3859 | if (type == 'C') | |
3860 | flags = STYP_TEXT; | |
3861 | else if (type == 'D') | |
3862 | flags = STYP_DATA; | |
3863 | segment_info[now_seg].scnhdr.s_flags |= flags; | |
3864 | ||
3865 | return; | |
3866 | } | |
3867 | ||
3868 | section_name = input_line_pointer; | |
3869 | c = get_symbol_end (); | |
3870 | ||
3871 | name = xmalloc (input_line_pointer - section_name + 1); | |
3872 | strcpy (name, section_name); | |
3873 | ||
3874 | *input_line_pointer = c; | |
3875 | ||
3876 | exp = 0; | |
3877 | flags = 0; | |
3878 | ||
3879 | SKIP_WHITESPACE (); | |
3880 | if (*input_line_pointer == ',') | |
3881 | { | |
3882 | ++input_line_pointer; | |
3883 | SKIP_WHITESPACE (); | |
3884 | ||
3885 | if (*input_line_pointer != '"') | |
3886 | exp = get_absolute_expression (); | |
3887 | else | |
3888 | { | |
3889 | ++input_line_pointer; | |
3890 | while (*input_line_pointer != '"' | |
3891 | && ! is_end_of_line[(unsigned char) *input_line_pointer]) | |
3892 | { | |
3893 | switch (*input_line_pointer) | |
3894 | { | |
3895 | case 'b': flags |= STYP_BSS; break; | |
3896 | case 'i': flags |= STYP_INFO; break; | |
3897 | case 'l': flags |= STYP_LIB; break; | |
3898 | case 'n': flags |= STYP_NOLOAD; break; | |
3899 | case 'o': flags |= STYP_OVER; break; | |
3900 | case 'd': | |
3901 | case 'w': flags |= STYP_DATA; break; | |
3902 | case 'x': flags |= STYP_TEXT; break; | |
3903 | case 'r': flags |= STYP_LIT; break; | |
3904 | default: | |
3905 | as_warn(_("unknown section attribute '%c'"), | |
3906 | *input_line_pointer); | |
3907 | break; | |
3908 | } | |
3909 | ++input_line_pointer; | |
3910 | } | |
3911 | if (*input_line_pointer == '"') | |
3912 | ++input_line_pointer; | |
3913 | } | |
3914 | } | |
3915 | ||
3916 | subseg_new (name, (subsegT) exp); | |
3917 | ||
3918 | segment_info[now_seg].scnhdr.s_flags |= flags; | |
3919 | ||
3920 | demand_empty_rest_of_line (); | |
3921 | } | |
3922 | ||
252b5132 RH |
3923 | static void |
3924 | obj_coff_text (ignore) | |
a04b544b | 3925 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3926 | { |
3927 | subseg_new (".text", get_absolute_expression ()); | |
3928 | } | |
3929 | ||
252b5132 RH |
3930 | static void |
3931 | obj_coff_data (ignore) | |
a04b544b | 3932 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
3933 | { |
3934 | if (flag_readonly_data_in_text) | |
3935 | subseg_new (".text", get_absolute_expression () + 1000); | |
3936 | else | |
3937 | subseg_new (".data", get_absolute_expression ()); | |
3938 | } | |
3939 | ||
3940 | static void | |
3941 | obj_coff_ident (ignore) | |
a04b544b | 3942 | int ignore ATTRIBUTE_UNUSED; |
252b5132 | 3943 | { |
f8e42b8c | 3944 | segT current_seg = now_seg; /* Save current seg. */ |
252b5132 | 3945 | subsegT current_subseg = now_subseg; |
f8e42b8c NC |
3946 | |
3947 | subseg_new (".comment", 0); /* .comment seg. */ | |
3948 | stringer (1); /* Read string. */ | |
3949 | subseg_set (current_seg, current_subseg); /* Restore current seg. */ | |
252b5132 RH |
3950 | } |
3951 | ||
3952 | void | |
3953 | c_symbol_merge (debug, normal) | |
3954 | symbolS *debug; | |
3955 | symbolS *normal; | |
3956 | { | |
3957 | S_SET_DATA_TYPE (normal, S_GET_DATA_TYPE (debug)); | |
3958 | S_SET_STORAGE_CLASS (normal, S_GET_STORAGE_CLASS (debug)); | |
3959 | ||
3960 | if (S_GET_NUMBER_AUXILIARY (debug) > S_GET_NUMBER_AUXILIARY (normal)) | |
f8e42b8c | 3961 | S_SET_NUMBER_AUXILIARY (normal, S_GET_NUMBER_AUXILIARY (debug)); |
252b5132 RH |
3962 | |
3963 | if (S_GET_NUMBER_AUXILIARY (debug) > 0) | |
f8e42b8c NC |
3964 | memcpy ((char *) &normal->sy_symbol.ost_auxent[0], |
3965 | (char *) &debug->sy_symbol.ost_auxent[0], | |
3966 | (unsigned int) (S_GET_NUMBER_AUXILIARY (debug) * AUXESZ)); | |
252b5132 | 3967 | |
dcd619be | 3968 | /* Move the debug flags. */ |
252b5132 | 3969 | SF_SET_DEBUG_FIELD (normal, SF_GET_DEBUG_FIELD (debug)); |
f8e42b8c | 3970 | } |
252b5132 RH |
3971 | |
3972 | static int | |
3973 | c_line_new (symbol, paddr, line_number, frag) | |
3974 | symbolS * symbol; | |
3975 | long paddr; | |
3976 | int line_number; | |
3977 | fragS * frag; | |
3978 | { | |
3979 | struct lineno_list *new_line = | |
3980 | (struct lineno_list *) xmalloc (sizeof (struct lineno_list)); | |
3981 | ||
3982 | segment_info_type *s = segment_info + now_seg; | |
3983 | new_line->line.l_lnno = line_number; | |
3984 | ||
3985 | if (line_number == 0) | |
3986 | { | |
3987 | last_line_symbol = symbol; | |
3988 | new_line->line.l_addr.l_symndx = (long) symbol; | |
3989 | } | |
3990 | else | |
3991 | { | |
3992 | new_line->line.l_addr.l_paddr = paddr; | |
3993 | } | |
3994 | ||
3995 | new_line->frag = (char *) frag; | |
3996 | new_line->next = (struct lineno_list *) NULL; | |
3997 | ||
252b5132 | 3998 | if (s->lineno_list_head == (struct lineno_list *) NULL) |
f8e42b8c | 3999 | s->lineno_list_head = new_line; |
252b5132 | 4000 | else |
f8e42b8c NC |
4001 | s->lineno_list_tail->next = new_line; |
4002 | ||
252b5132 RH |
4003 | s->lineno_list_tail = new_line; |
4004 | return LINESZ * s->scnhdr.s_nlnno++; | |
4005 | } | |
4006 | ||
4007 | void | |
4008 | c_dot_file_symbol (filename) | |
4009 | char *filename; | |
4010 | { | |
4011 | symbolS *symbolP; | |
4012 | ||
4013 | symbolP = symbol_new (".file", | |
4014 | SEG_DEBUG, | |
4015 | 0, | |
4016 | &zero_address_frag); | |
4017 | ||
4018 | S_SET_STORAGE_CLASS (symbolP, C_FILE); | |
4019 | S_SET_NUMBER_AUXILIARY (symbolP, 1); | |
4020 | ||
4021 | if (strlen (filename) > FILNMLEN) | |
4022 | { | |
4023 | /* Filename is too long to fit into an auxent, | |
4024 | we stick it into the string table instead. We keep | |
4025 | a linked list of the filenames we find so we can emit | |
f8e42b8c | 4026 | them later. */ |
252b5132 RH |
4027 | struct filename_list *f = ((struct filename_list *) |
4028 | xmalloc (sizeof (struct filename_list))); | |
4029 | ||
4030 | f->filename = filename; | |
4031 | f->next = 0; | |
4032 | ||
4033 | SA_SET_FILE_FNAME_ZEROS (symbolP, 0); | |
4034 | SA_SET_FILE_FNAME_OFFSET (symbolP, 1); | |
4035 | ||
dcd619be | 4036 | if (filename_list_tail) |
252b5132 RH |
4037 | filename_list_tail->next = f; |
4038 | else | |
4039 | filename_list_head = f; | |
dcd619be | 4040 | filename_list_tail = f; |
252b5132 | 4041 | } |
dcd619be | 4042 | else |
252b5132 RH |
4043 | { |
4044 | SA_SET_FILE_FNAME (symbolP, filename); | |
4045 | } | |
4046 | #ifndef NO_LISTING | |
4047 | { | |
4048 | extern int listing; | |
4049 | if (listing) | |
f8e42b8c | 4050 | listing_source_file (filename); |
252b5132 | 4051 | } |
252b5132 RH |
4052 | #endif |
4053 | SF_SET_DEBUG (symbolP); | |
4054 | S_SET_VALUE (symbolP, (valueT) previous_file_symbol); | |
4055 | ||
4056 | previous_file_symbol = symbolP; | |
4057 | ||
f8e42b8c | 4058 | /* Make sure that the symbol is first on the symbol chain. */ |
252b5132 RH |
4059 | if (symbol_rootP != symbolP) |
4060 | { | |
4061 | symbol_remove (symbolP, &symbol_rootP, &symbol_lastP); | |
4062 | symbol_insert (symbolP, symbol_rootP, &symbol_rootP, &symbol_lastP); | |
4063 | } | |
f8e42b8c | 4064 | } |
252b5132 | 4065 | |
f8e42b8c | 4066 | /* Build a 'section static' symbol. */ |
252b5132 RH |
4067 | |
4068 | symbolS * | |
4069 | c_section_symbol (name, idx) | |
4070 | char *name; | |
4071 | int idx; | |
4072 | { | |
4073 | symbolS *symbolP; | |
4074 | ||
4075 | symbolP = symbol_find_base (name, DO_NOT_STRIP); | |
4076 | if (symbolP == NULL) | |
4077 | symbolP = symbol_new (name, idx, 0, &zero_address_frag); | |
4078 | else | |
4079 | { | |
4080 | /* Mmmm. I just love violating interfaces. Makes me feel...dirty. */ | |
4081 | S_SET_SEGMENT (symbolP, idx); | |
4082 | symbolP->sy_frag = &zero_address_frag; | |
4083 | } | |
4084 | ||
4085 | S_SET_STORAGE_CLASS (symbolP, C_STAT); | |
4086 | S_SET_NUMBER_AUXILIARY (symbolP, 1); | |
4087 | ||
4088 | SF_SET_STATICS (symbolP); | |
4089 | ||
4090 | #ifdef TE_DELTA | |
4091 | /* manfred@s-direktnet.de: section symbols *must* have the LOCAL bit cleared, | |
4092 | which is set by the new definition of LOCAL_LABEL in tc-m68k.h. */ | |
4093 | SF_CLEAR_LOCAL (symbolP); | |
4094 | #endif | |
4095 | #ifdef TE_PE | |
4096 | /* If the .linkonce pseudo-op was used for this section, we must | |
4097 | store the information in the auxiliary entry for the section | |
4098 | symbol. */ | |
4099 | if (segment_info[idx].linkonce != LINKONCE_UNSET) | |
4100 | { | |
4101 | int type; | |
4102 | ||
4103 | switch (segment_info[idx].linkonce) | |
4104 | { | |
4105 | default: | |
4106 | abort (); | |
4107 | case LINKONCE_DISCARD: | |
4108 | type = IMAGE_COMDAT_SELECT_ANY; | |
4109 | break; | |
4110 | case LINKONCE_ONE_ONLY: | |
4111 | type = IMAGE_COMDAT_SELECT_NODUPLICATES; | |
4112 | break; | |
4113 | case LINKONCE_SAME_SIZE: | |
4114 | type = IMAGE_COMDAT_SELECT_SAME_SIZE; | |
4115 | break; | |
4116 | case LINKONCE_SAME_CONTENTS: | |
4117 | type = IMAGE_COMDAT_SELECT_EXACT_MATCH; | |
4118 | break; | |
4119 | } | |
4120 | ||
4121 | SYM_AUXENT (symbolP)->x_scn.x_comdat = type; | |
4122 | } | |
4123 | #endif /* TE_PE */ | |
4124 | ||
4125 | return symbolP; | |
f8e42b8c | 4126 | } |
252b5132 RH |
4127 | |
4128 | static void | |
4129 | w_symbols (abfd, where, symbol_rootP) | |
4130 | bfd * abfd; | |
4131 | char *where; | |
4132 | symbolS * symbol_rootP; | |
4133 | { | |
4134 | symbolS *symbolP; | |
4135 | unsigned int i; | |
4136 | ||
f8e42b8c | 4137 | /* First fill in those values we have only just worked out. */ |
252b5132 RH |
4138 | for (i = SEG_E0; i < SEG_LAST; i++) |
4139 | { | |
4140 | symbolP = segment_info[i].dot; | |
4141 | if (symbolP) | |
4142 | { | |
4143 | SA_SET_SCN_SCNLEN (symbolP, segment_info[i].scnhdr.s_size); | |
4144 | SA_SET_SCN_NRELOC (symbolP, segment_info[i].scnhdr.s_nreloc); | |
4145 | SA_SET_SCN_NLINNO (symbolP, segment_info[i].scnhdr.s_nlnno); | |
4146 | } | |
4147 | } | |
4148 | ||
f8e42b8c | 4149 | /* Emit all symbols left in the symbol chain. */ |
252b5132 RH |
4150 | for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next (symbolP)) |
4151 | { | |
4152 | /* Used to save the offset of the name. It is used to point | |
f8e42b8c NC |
4153 | to the string in memory but must be a file offset. */ |
4154 | char *temp; | |
252b5132 RH |
4155 | |
4156 | /* We can't fix the lnnoptr field in yank_symbols with the other | |
4157 | adjustments, because we have to wait until we know where they | |
4158 | go in the file. */ | |
4159 | if (SF_GET_ADJ_LNNOPTR (symbolP)) | |
f8e42b8c NC |
4160 | SA_GET_SYM_LNNOPTR (symbolP) += |
4161 | segment_info[S_GET_SEGMENT (symbolP)].scnhdr.s_lnnoptr; | |
252b5132 RH |
4162 | |
4163 | tc_coff_symbol_emit_hook (symbolP); | |
4164 | ||
4165 | temp = S_GET_NAME (symbolP); | |
4166 | if (SF_GET_STRING (symbolP)) | |
4167 | { | |
4168 | S_SET_OFFSET (symbolP, symbolP->sy_name_offset); | |
4169 | S_SET_ZEROES (symbolP, 0); | |
4170 | } | |
4171 | else | |
4172 | { | |
4173 | memset (symbolP->sy_symbol.ost_entry.n_name, 0, SYMNMLEN); | |
4174 | strncpy (symbolP->sy_symbol.ost_entry.n_name, temp, SYMNMLEN); | |
4175 | } | |
4176 | where = symbol_to_chars (abfd, where, symbolP); | |
4177 | S_SET_NAME (symbolP, temp); | |
4178 | } | |
f8e42b8c | 4179 | } |
252b5132 RH |
4180 | |
4181 | static void | |
4182 | obj_coff_lcomm (ignore) | |
a04b544b | 4183 | int ignore ATTRIBUTE_UNUSED; |
252b5132 RH |
4184 | { |
4185 | s_lcomm(0); | |
4186 | return; | |
4187 | #if 0 | |
4188 | char *name; | |
4189 | char c; | |
4190 | int temp; | |
4191 | char *p; | |
4192 | ||
4193 | symbolS *symbolP; | |
4194 | ||
4195 | name = input_line_pointer; | |
4196 | ||
4197 | c = get_symbol_end (); | |
4198 | p = input_line_pointer; | |
4199 | *p = c; | |
4200 | SKIP_WHITESPACE (); | |
4201 | if (*input_line_pointer != ',') | |
4202 | { | |
4203 | as_bad (_("Expected comma after name")); | |
4204 | ignore_rest_of_line (); | |
4205 | return; | |
4206 | } | |
4207 | if (*input_line_pointer == '\n') | |
4208 | { | |
4209 | as_bad (_("Missing size expression")); | |
4210 | return; | |
4211 | } | |
4212 | input_line_pointer++; | |
4213 | if ((temp = get_absolute_expression ()) < 0) | |
4214 | { | |
4215 | as_warn (_("lcomm length (%d.) <0! Ignored."), temp); | |
4216 | ignore_rest_of_line (); | |
4217 | return; | |
4218 | } | |
4219 | *p = 0; | |
4220 | ||
708b82c7 | 4221 | symbolP = symbol_find_or_make (name); |
252b5132 | 4222 | |
708b82c7 NC |
4223 | if (S_GET_SEGMENT (symbolP) == SEG_UNKNOWN && |
4224 | S_GET_VALUE (symbolP) == 0) | |
252b5132 RH |
4225 | { |
4226 | if (! need_pass_2) | |
4227 | { | |
4228 | char *p; | |
f8e42b8c | 4229 | segT current_seg = now_seg; /* Save current seg. */ |
252b5132 RH |
4230 | subsegT current_subseg = now_subseg; |
4231 | ||
4232 | subseg_set (SEG_E2, 1); | |
4233 | symbolP->sy_frag = frag_now; | |
4234 | p = frag_var(rs_org, 1, 1, (relax_substateT)0, symbolP, | |
4235 | (offsetT) temp, (char *) 0); | |
4236 | *p = 0; | |
f8e42b8c | 4237 | subseg_set (current_seg, current_subseg); /* Restore current seg. */ |
708b82c7 NC |
4238 | S_SET_SEGMENT (symbolP, SEG_E2); |
4239 | S_SET_STORAGE_CLASS (symbolP, C_STAT); | |
252b5132 RH |
4240 | } |
4241 | } | |
4242 | else | |
708b82c7 | 4243 | as_bad (_("Symbol %s already defined"), name); |
252b5132 | 4244 | |
708b82c7 | 4245 | demand_empty_rest_of_line (); |
252b5132 RH |
4246 | #endif |
4247 | } | |
4248 | ||
4249 | static void | |
4250 | fixup_mdeps (frags, h, this_segment) | |
17fc154e AM |
4251 | fragS *frags; |
4252 | object_headers *h ATTRIBUTE_UNUSED; | |
252b5132 RH |
4253 | segT this_segment; |
4254 | { | |
4255 | subseg_change (this_segment, 0); | |
f8e42b8c | 4256 | |
252b5132 RH |
4257 | while (frags) |
4258 | { | |
4259 | switch (frags->fr_type) | |
4260 | { | |
4261 | case rs_align: | |
4262 | case rs_align_code: | |
0a9ef439 | 4263 | case rs_align_test: |
252b5132 RH |
4264 | case rs_org: |
4265 | #ifdef HANDLE_ALIGN | |
4266 | HANDLE_ALIGN (frags); | |
4267 | #endif | |
4268 | frags->fr_type = rs_fill; | |
4269 | frags->fr_offset = | |
4270 | ((frags->fr_next->fr_address - frags->fr_address - frags->fr_fix) | |
4271 | / frags->fr_var); | |
4272 | break; | |
4273 | case rs_machine_dependent: | |
4274 | md_convert_frag (h, this_segment, frags); | |
4275 | frag_wane (frags); | |
4276 | break; | |
4277 | default: | |
4278 | ; | |
4279 | } | |
4280 | frags = frags->fr_next; | |
4281 | } | |
4282 | } | |
4283 | ||
4284 | #if 1 | |
4285 | ||
4286 | #ifndef TC_FORCE_RELOCATION | |
4287 | #define TC_FORCE_RELOCATION(fix) 0 | |
4288 | #endif | |
4289 | ||
4290 | static void | |
4291 | fixup_segment (segP, this_segment_type) | |
4292 | segment_info_type * segP; | |
4293 | segT this_segment_type; | |
4294 | { | |
f8e42b8c NC |
4295 | fixS * fixP; |
4296 | symbolS *add_symbolP; | |
4297 | symbolS *sub_symbolP; | |
252b5132 | 4298 | long add_number; |
f8e42b8c NC |
4299 | int size; |
4300 | char *place; | |
4301 | long where; | |
4302 | char pcrel; | |
4303 | fragS *fragP; | |
4304 | segT add_symbol_segment = absolute_section; | |
252b5132 RH |
4305 | |
4306 | for (fixP = segP->fix_root; fixP; fixP = fixP->fx_next) | |
4307 | { | |
4308 | fragP = fixP->fx_frag; | |
4309 | know (fragP); | |
4310 | where = fixP->fx_where; | |
4311 | place = fragP->fr_literal + where; | |
4312 | size = fixP->fx_size; | |
4313 | add_symbolP = fixP->fx_addsy; | |
4314 | sub_symbolP = fixP->fx_subsy; | |
4315 | add_number = fixP->fx_offset; | |
4316 | pcrel = fixP->fx_pcrel; | |
4317 | ||
4318 | /* We want function-relative stabs to work on systems which | |
4319 | may use a relaxing linker; thus we must handle the sym1-sym2 | |
4320 | fixups function-relative stabs generates. | |
4321 | ||
4322 | Of course, if you actually enable relaxing in the linker, the | |
4323 | line and block scoping information is going to be incorrect | |
4324 | in some cases. The only way to really fix this is to support | |
4325 | a reloc involving the difference of two symbols. */ | |
4326 | if (linkrelax | |
4327 | && (!sub_symbolP || pcrel)) | |
4328 | continue; | |
4329 | ||
4330 | #ifdef TC_I960 | |
4331 | if (fixP->fx_tcbit && SF_GET_CALLNAME (add_symbolP)) | |
4332 | { | |
4333 | /* Relocation should be done via the associated 'bal' entry | |
dcd619be | 4334 | point symbol. */ |
252b5132 RH |
4335 | |
4336 | if (!SF_GET_BALNAME (tc_get_bal_of_call (add_symbolP))) | |
4337 | { | |
4338 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
4339 | _("No 'bal' entry point for leafproc %s"), | |
4340 | S_GET_NAME (add_symbolP)); | |
4341 | continue; | |
4342 | } | |
4343 | fixP->fx_addsy = add_symbolP = tc_get_bal_of_call (add_symbolP); | |
4344 | } | |
4345 | #endif | |
4346 | ||
4347 | /* Make sure the symbols have been resolved; this may not have | |
4348 | happened if these are expression symbols. */ | |
4349 | if (add_symbolP != NULL && ! add_symbolP->sy_resolved) | |
6386f3a7 | 4350 | resolve_symbol_value (add_symbolP); |
252b5132 RH |
4351 | |
4352 | if (add_symbolP != NULL) | |
4353 | { | |
4354 | /* If this fixup is against a symbol which has been equated | |
4355 | to another symbol, convert it to the other symbol. */ | |
4356 | if (add_symbolP->sy_value.X_op == O_symbol | |
4357 | && (! S_IS_DEFINED (add_symbolP) | |
4358 | || S_IS_COMMON (add_symbolP))) | |
4359 | { | |
4360 | while (add_symbolP->sy_value.X_op == O_symbol | |
4361 | && (! S_IS_DEFINED (add_symbolP) | |
4362 | || S_IS_COMMON (add_symbolP))) | |
4363 | { | |
4364 | symbolS *n; | |
4365 | ||
4366 | /* We must avoid looping, as that can occur with a | |
4367 | badly written program. */ | |
4368 | n = add_symbolP->sy_value.X_add_symbol; | |
4369 | if (n == add_symbolP) | |
4370 | break; | |
4371 | add_number += add_symbolP->sy_value.X_add_number; | |
4372 | add_symbolP = n; | |
4373 | } | |
4374 | fixP->fx_addsy = add_symbolP; | |
4375 | fixP->fx_offset = add_number; | |
4376 | } | |
4377 | } | |
4378 | ||
4379 | if (sub_symbolP != NULL && ! sub_symbolP->sy_resolved) | |
6386f3a7 | 4380 | resolve_symbol_value (sub_symbolP); |
252b5132 RH |
4381 | |
4382 | if (add_symbolP != NULL | |
4383 | && add_symbolP->sy_mri_common) | |
4384 | { | |
4385 | know (add_symbolP->sy_value.X_op == O_symbol); | |
4386 | add_number += S_GET_VALUE (add_symbolP); | |
4387 | fixP->fx_offset = add_number; | |
4388 | add_symbolP = fixP->fx_addsy = add_symbolP->sy_value.X_add_symbol; | |
4389 | } | |
4390 | ||
4391 | if (add_symbolP) | |
f8e42b8c | 4392 | add_symbol_segment = S_GET_SEGMENT (add_symbolP); |
252b5132 RH |
4393 | |
4394 | if (sub_symbolP) | |
4395 | { | |
4396 | if (add_symbolP == NULL || add_symbol_segment == absolute_section) | |
4397 | { | |
4398 | if (add_symbolP != NULL) | |
4399 | { | |
4400 | add_number += S_GET_VALUE (add_symbolP); | |
4401 | add_symbolP = NULL; | |
4402 | fixP->fx_addsy = NULL; | |
4403 | } | |
4404 | ||
4405 | /* It's just -sym. */ | |
4406 | if (S_GET_SEGMENT (sub_symbolP) == absolute_section) | |
4407 | { | |
4408 | add_number -= S_GET_VALUE (sub_symbolP); | |
4409 | fixP->fx_subsy = 0; | |
4410 | fixP->fx_done = 1; | |
4411 | } | |
4412 | else | |
4413 | { | |
4414 | #ifndef TC_M68K | |
4415 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
4416 | _("Negative of non-absolute symbol %s"), | |
4417 | S_GET_NAME (sub_symbolP)); | |
4418 | #endif | |
4419 | add_number -= S_GET_VALUE (sub_symbolP); | |
4420 | } /* not absolute */ | |
4421 | ||
4422 | /* if sub_symbol is in the same segment that add_symbol | |
f8e42b8c | 4423 | and add_symbol is either in DATA, TEXT, BSS or ABSOLUTE. */ |
252b5132 RH |
4424 | } |
4425 | else if (S_GET_SEGMENT (sub_symbolP) == add_symbol_segment | |
4426 | && SEG_NORMAL (add_symbol_segment)) | |
4427 | { | |
4428 | /* Difference of 2 symbols from same segment. Can't | |
4429 | make difference of 2 undefineds: 'value' means | |
dcd619be | 4430 | something different for N_UNDF. */ |
252b5132 RH |
4431 | #ifdef TC_I960 |
4432 | /* Makes no sense to use the difference of 2 arbitrary symbols | |
4433 | as the target of a call instruction. */ | |
4434 | if (fixP->fx_tcbit) | |
f8e42b8c NC |
4435 | as_bad_where (fixP->fx_file, fixP->fx_line, |
4436 | _("callj to difference of 2 symbols")); | |
252b5132 RH |
4437 | #endif /* TC_I960 */ |
4438 | add_number += S_GET_VALUE (add_symbolP) - | |
4439 | S_GET_VALUE (sub_symbolP); | |
4440 | add_symbolP = NULL; | |
4441 | ||
4442 | if (!TC_FORCE_RELOCATION (fixP)) | |
4443 | { | |
4444 | fixP->fx_addsy = NULL; | |
4445 | fixP->fx_subsy = NULL; | |
4446 | fixP->fx_done = 1; | |
4447 | #ifdef TC_M68K /* is this right? */ | |
4448 | pcrel = 0; | |
4449 | fixP->fx_pcrel = 0; | |
4450 | #endif | |
4451 | } | |
4452 | } | |
4453 | else | |
4454 | { | |
dcd619be | 4455 | /* Different segments in subtraction. */ |
252b5132 RH |
4456 | know (!(S_IS_EXTERNAL (sub_symbolP) && (S_GET_SEGMENT (sub_symbolP) == absolute_section))); |
4457 | ||
4458 | if ((S_GET_SEGMENT (sub_symbolP) == absolute_section)) | |
f8e42b8c NC |
4459 | add_number -= S_GET_VALUE (sub_symbolP); |
4460 | ||
252b5132 RH |
4461 | #ifdef DIFF_EXPR_OK |
4462 | else if (S_GET_SEGMENT (sub_symbolP) == this_segment_type | |
dcd619be | 4463 | #if 0 /* Okay for 68k, at least... */ |
252b5132 RH |
4464 | && !pcrel |
4465 | #endif | |
4466 | ) | |
4467 | { | |
4468 | /* Make it pc-relative. */ | |
4469 | add_number += (md_pcrel_from (fixP) | |
4470 | - S_GET_VALUE (sub_symbolP)); | |
4471 | pcrel = 1; | |
4472 | fixP->fx_pcrel = 1; | |
4473 | sub_symbolP = 0; | |
4474 | fixP->fx_subsy = 0; | |
4475 | } | |
4476 | #endif | |
4477 | else | |
4478 | { | |
4479 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
4480 | _("Can't emit reloc {- %s-seg symbol \"%s\"} @ file address %ld."), | |
4481 | segment_name (S_GET_SEGMENT (sub_symbolP)), | |
4482 | S_GET_NAME (sub_symbolP), | |
4483 | (long) (fragP->fr_address + where)); | |
f8e42b8c | 4484 | } |
252b5132 | 4485 | } |
f8e42b8c | 4486 | } |
252b5132 RH |
4487 | |
4488 | if (add_symbolP) | |
4489 | { | |
4490 | if (add_symbol_segment == this_segment_type && pcrel) | |
4491 | { | |
f8e42b8c NC |
4492 | /* This fixup was made when the symbol's segment was |
4493 | SEG_UNKNOWN, but it is now in the local segment. | |
4494 | So we know how to do the address without relocation. */ | |
252b5132 RH |
4495 | #ifdef TC_I960 |
4496 | /* reloc_callj() may replace a 'call' with a 'calls' or a 'bal', | |
f8e42b8c NC |
4497 | in which cases it modifies *fixP as appropriate. In the case |
4498 | of a 'calls', no further work is required, and *fixP has been | |
4499 | set up to make the rest of the code below a no-op. */ | |
252b5132 RH |
4500 | reloc_callj (fixP); |
4501 | #endif /* TC_I960 */ | |
4502 | ||
4503 | add_number += S_GET_VALUE (add_symbolP); | |
4504 | add_number -= md_pcrel_from (fixP); | |
4505 | ||
4506 | /* We used to do | |
4507 | add_number -= segP->scnhdr.s_vaddr; | |
4508 | if defined (TC_I386) || defined (TE_LYNX). I now | |
4509 | think that was an error propagated from the case when | |
4510 | we are going to emit the relocation. If we are not | |
4511 | going to emit the relocation, then we just want to | |
4512 | set add_number to the difference between the symbols. | |
4513 | This is a case that would only arise when there is a | |
4514 | PC relative reference from a section other than .text | |
4515 | to a symbol defined in the same section, and the | |
4516 | reference is not relaxed. Since jump instructions on | |
4517 | the i386 are relaxed, this could only arise with a | |
4518 | call instruction. */ | |
4519 | ||
dcd619be | 4520 | pcrel = 0; /* Lie. Don't want further pcrel processing. */ |
252b5132 RH |
4521 | if (!TC_FORCE_RELOCATION (fixP)) |
4522 | { | |
4523 | fixP->fx_addsy = NULL; | |
4524 | fixP->fx_done = 1; | |
4525 | } | |
4526 | } | |
4527 | else | |
4528 | { | |
4529 | switch (add_symbol_segment) | |
4530 | { | |
4531 | case absolute_section: | |
4532 | #ifdef TC_I960 | |
f8e42b8c NC |
4533 | /* See comment about reloc_callj() above. */ |
4534 | reloc_callj (fixP); | |
252b5132 RH |
4535 | #endif /* TC_I960 */ |
4536 | add_number += S_GET_VALUE (add_symbolP); | |
4537 | add_symbolP = NULL; | |
4538 | ||
4539 | if (!TC_FORCE_RELOCATION (fixP)) | |
4540 | { | |
4541 | fixP->fx_addsy = NULL; | |
4542 | fixP->fx_done = 1; | |
4543 | } | |
4544 | break; | |
4545 | default: | |
4546 | ||
3b16e843 | 4547 | #if defined(TC_A29K) || (defined(TE_PE) && defined(TC_I386)) || defined(TC_M88K) || defined(TC_OR32) |
252b5132 RH |
4548 | /* This really should be handled in the linker, but |
4549 | backward compatibility forbids. */ | |
4550 | add_number += S_GET_VALUE (add_symbolP); | |
4551 | #else | |
4552 | add_number += S_GET_VALUE (add_symbolP) + | |
4553 | segment_info[S_GET_SEGMENT (add_symbolP)].scnhdr.s_paddr; | |
4554 | #endif | |
4555 | break; | |
4556 | ||
4557 | case SEG_UNKNOWN: | |
4558 | #ifdef TC_I960 | |
4559 | if ((int) fixP->fx_bit_fixP == 13) | |
4560 | { | |
4561 | /* This is a COBR instruction. They have only a | |
f8e42b8c NC |
4562 | 13-bit displacement and are only to be used |
4563 | for local branches: flag as error, don't generate | |
4564 | relocation. */ | |
252b5132 RH |
4565 | as_bad_where (fixP->fx_file, fixP->fx_line, |
4566 | _("can't use COBR format with external label")); | |
4567 | fixP->fx_addsy = NULL; | |
4568 | fixP->fx_done = 1; | |
4569 | continue; | |
f8e42b8c | 4570 | } |
252b5132 RH |
4571 | #endif /* TC_I960 */ |
4572 | #if ((defined (TC_I386) || defined (TE_LYNX) || defined (TE_AUX)) && !defined(TE_PE)) || defined (COFF_COMMON_ADDEND) | |
4573 | /* 386 COFF uses a peculiar format in which the | |
4574 | value of a common symbol is stored in the .text | |
4575 | segment (I've checked this on SVR3.2 and SCO | |
4576 | 3.2.2) Ian Taylor <ian@cygnus.com>. */ | |
4577 | /* This is also true for 68k COFF on sysv machines | |
4578 | (Checked on Motorola sysv68 R3V6 and R3V7.1, and also on | |
4579 | UNIX System V/M68000, Release 1.0 from ATT/Bell Labs) | |
dcd619be | 4580 | Philippe De Muyter <phdm@info.ucl.ac.be>. */ |
252b5132 RH |
4581 | if (S_IS_COMMON (add_symbolP)) |
4582 | add_number += S_GET_VALUE (add_symbolP); | |
4583 | #endif | |
4584 | break; | |
4585 | ||
f8e42b8c NC |
4586 | } |
4587 | } | |
4588 | } | |
252b5132 RH |
4589 | |
4590 | if (pcrel) | |
4591 | { | |
3b16e843 | 4592 | #if !defined(TC_M88K) && !(defined(TE_PE) && defined(TC_I386)) && !defined(TC_A29K) && !defined(TC_OR32) |
252b5132 RH |
4593 | /* This adjustment is not correct on the m88k, for which the |
4594 | linker does all the computation. */ | |
4595 | add_number -= md_pcrel_from (fixP); | |
4596 | #endif | |
4597 | if (add_symbolP == 0) | |
f8e42b8c | 4598 | fixP->fx_addsy = &abs_symbol; |
252b5132 RH |
4599 | #if defined (TC_I386) || defined (TE_LYNX) || defined (TC_I960) || defined (TC_M68K) |
4600 | /* On the 386 we must adjust by the segment vaddr as well. | |
4601 | Ian Taylor. | |
4602 | ||
4603 | I changed the i960 to work this way as well. This is | |
4604 | compatible with the current GNU linker behaviour. I do | |
4605 | not know what other i960 COFF assemblers do. This is not | |
4606 | a common case: normally, only assembler code will contain | |
4607 | a PC relative reloc, and only branches which do not | |
4608 | originate in the .text section will have a non-zero | |
4609 | address. | |
4610 | ||
4611 | I changed the m68k to work this way as well. This will | |
4612 | break existing PC relative relocs from sections which do | |
4613 | not start at address 0, but it will make ld -r work. | |
4614 | Ian Taylor, 4 Oct 96. */ | |
4615 | ||
4616 | add_number -= segP->scnhdr.s_vaddr; | |
4617 | #endif | |
f8e42b8c | 4618 | } |
252b5132 | 4619 | |
94f592af | 4620 | md_apply_fix3 (fixP, (valueT *) & add_number, this_segment_type); |
ec0f0840 | 4621 | |
252b5132 RH |
4622 | if (!fixP->fx_bit_fixP && ! fixP->fx_no_overflow) |
4623 | { | |
4624 | #ifndef TC_M88K | |
4625 | /* The m88k uses the offset field of the reloc to get around | |
4626 | this problem. */ | |
4627 | if ((size == 1 | |
4628 | && ((add_number & ~0xFF) | |
4629 | || (fixP->fx_signed && (add_number & 0x80))) | |
4630 | && ((add_number & ~0xFF) != (-1 & ~0xFF) | |
4631 | || (add_number & 0x80) == 0)) | |
4632 | || (size == 2 | |
4633 | && ((add_number & ~0xFFFF) | |
4634 | || (fixP->fx_signed && (add_number & 0x8000))) | |
4635 | && ((add_number & ~0xFFFF) != (-1 & ~0xFFFF) | |
4636 | || (add_number & 0x8000) == 0))) | |
4637 | { | |
4638 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
4639 | _("Value of %ld too large for field of %d bytes at 0x%lx"), | |
4640 | (long) add_number, size, | |
4641 | (unsigned long) (fragP->fr_address + where)); | |
4642 | } | |
4643 | #endif | |
4644 | #ifdef WARN_SIGNED_OVERFLOW_WORD | |
4645 | /* Warn if a .word value is too large when treated as a | |
4646 | signed number. We already know it is not too negative. | |
4647 | This is to catch over-large switches generated by gcc on | |
4648 | the 68k. */ | |
4649 | if (!flag_signed_overflow_ok | |
4650 | && size == 2 | |
4651 | && add_number > 0x7fff) | |
4652 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
4653 | _("Signed .word overflow; switch may be too large; %ld at 0x%lx"), | |
4654 | (long) add_number, | |
4655 | (unsigned long) (fragP->fr_address + where)); | |
4656 | #endif | |
f8e42b8c NC |
4657 | } |
4658 | } | |
4659 | } | |
252b5132 RH |
4660 | |
4661 | #endif | |
4662 | ||
4663 | /* The first entry in a .stab section is special. */ | |
4664 | ||
4665 | void | |
4666 | obj_coff_init_stab_section (seg) | |
4667 | segT seg; | |
4668 | { | |
4669 | char *file; | |
4670 | char *p; | |
4671 | char *stabstr_name; | |
4672 | unsigned int stroff; | |
4673 | ||
dcd619be | 4674 | /* Make space for this first symbol. */ |
252b5132 | 4675 | p = frag_more (12); |
dcd619be | 4676 | /* Zero it out. */ |
252b5132 RH |
4677 | memset (p, 0, 12); |
4678 | as_where (&file, (unsigned int *) NULL); | |
4679 | stabstr_name = (char *) alloca (strlen (segment_info[seg].name) + 4); | |
4680 | strcpy (stabstr_name, segment_info[seg].name); | |
4681 | strcat (stabstr_name, "str"); | |
4682 | stroff = get_stab_string_offset (file, stabstr_name); | |
4683 | know (stroff == 1); | |
4684 | md_number_to_chars (p, stroff, 4); | |
4685 | } | |
4686 | ||
4687 | /* Fill in the counts in the first entry in a .stab section. */ | |
4688 | ||
4689 | static void | |
4690 | adjust_stab_section(abfd, seg) | |
4691 | bfd *abfd; | |
4692 | segT seg; | |
4693 | { | |
4694 | segT stabstrseg = SEG_UNKNOWN; | |
4695 | const char *secname, *name2; | |
4696 | char *name; | |
4697 | char *p = NULL; | |
4698 | int i, strsz = 0, nsyms; | |
4699 | fragS *frag = segment_info[seg].frchainP->frch_root; | |
4700 | ||
dcd619be | 4701 | /* Look for the associated string table section. */ |
252b5132 RH |
4702 | |
4703 | secname = segment_info[seg].name; | |
4704 | name = (char *) alloca (strlen (secname) + 4); | |
4705 | strcpy (name, secname); | |
4706 | strcat (name, "str"); | |
4707 | ||
4708 | for (i = SEG_E0; i < SEG_UNKNOWN; i++) | |
4709 | { | |
4710 | name2 = segment_info[i].name; | |
4711 | if (name2 != NULL && strncmp(name2, name, 8) == 0) | |
4712 | { | |
4713 | stabstrseg = i; | |
4714 | break; | |
4715 | } | |
4716 | } | |
4717 | ||
dcd619be | 4718 | /* If we found the section, get its size. */ |
252b5132 RH |
4719 | if (stabstrseg != SEG_UNKNOWN) |
4720 | strsz = size_section (abfd, stabstrseg); | |
4721 | ||
4722 | nsyms = size_section (abfd, seg) / 12 - 1; | |
4723 | ||
4724 | /* Look for the first frag of sufficient size for the initial stab | |
dcd619be | 4725 | symbol, and collect a pointer to it. */ |
252b5132 RH |
4726 | while (frag && frag->fr_fix < 12) |
4727 | frag = frag->fr_next; | |
4728 | assert (frag != 0); | |
4729 | p = frag->fr_literal; | |
4730 | assert (p != 0); | |
4731 | ||
4732 | /* Write in the number of stab symbols and the size of the string | |
dcd619be | 4733 | table. */ |
252b5132 RH |
4734 | bfd_h_put_16 (abfd, (bfd_vma) nsyms, (bfd_byte *) p + 6); |
4735 | bfd_h_put_32 (abfd, (bfd_vma) strsz, (bfd_byte *) p + 8); | |
4736 | } | |
4737 | ||
4738 | #endif /* not BFD_ASSEMBLER */ | |
4739 | ||
4c63da97 | 4740 | const pseudo_typeS coff_pseudo_table[] = |
252b5132 RH |
4741 | { |
4742 | {"def", obj_coff_def, 0}, | |
4743 | {"dim", obj_coff_dim, 0}, | |
4744 | {"endef", obj_coff_endef, 0}, | |
4745 | {"line", obj_coff_line, 0}, | |
4746 | {"ln", obj_coff_ln, 0}, | |
28428223 ILT |
4747 | #ifdef BFD_ASSEMBLER |
4748 | {"loc", obj_coff_loc, 0}, | |
4749 | #endif | |
252b5132 RH |
4750 | {"appline", obj_coff_ln, 1}, |
4751 | {"scl", obj_coff_scl, 0}, | |
4752 | {"size", obj_coff_size, 0}, | |
4753 | {"tag", obj_coff_tag, 0}, | |
4754 | {"type", obj_coff_type, 0}, | |
4755 | {"val", obj_coff_val, 0}, | |
4756 | {"section", obj_coff_section, 0}, | |
4757 | {"sect", obj_coff_section, 0}, | |
4758 | /* FIXME: We ignore the MRI short attribute. */ | |
4759 | {"section.s", obj_coff_section, 0}, | |
4760 | {"sect.s", obj_coff_section, 0}, | |
4761 | /* We accept the .bss directive for backward compatibility with | |
4762 | earlier versions of gas. */ | |
4763 | {"bss", obj_coff_bss, 0}, | |
7a6284c4 | 4764 | {"ident", obj_coff_ident, 0}, |
252b5132 RH |
4765 | #ifndef BFD_ASSEMBLER |
4766 | {"use", obj_coff_section, 0}, | |
4767 | {"text", obj_coff_text, 0}, | |
4768 | {"data", obj_coff_data, 0}, | |
4769 | {"lcomm", obj_coff_lcomm, 0}, | |
252b5132 | 4770 | #else |
d9895649 | 4771 | {"weak", obj_coff_weak, 0}, |
252b5132 | 4772 | {"optim", s_ignore, 0}, /* For sun386i cc (?) */ |
252b5132 RH |
4773 | #endif |
4774 | {"version", s_ignore, 0}, | |
4775 | {"ABORT", s_abort, 0}, | |
026df7c5 NC |
4776 | #if defined( TC_M88K ) || defined ( TC_TIC4X ) |
4777 | /* The m88k and tic4x uses sdef instead of def. */ | |
252b5132 RH |
4778 | {"sdef", obj_coff_def, 0}, |
4779 | #endif | |
a04b544b | 4780 | {NULL, NULL, 0} /* end sentinel */ |
4c63da97 | 4781 | }; /* coff_pseudo_table */ |
252b5132 RH |
4782 | \f |
4783 | #ifdef BFD_ASSEMBLER | |
4784 | ||
4785 | /* Support for a COFF emulation. */ | |
4786 | ||
4c63da97 | 4787 | static void coff_pop_insert PARAMS ((void)); |
5110c57e | 4788 | static int coff_separate_stab_sections PARAMS ((void)); |
4c63da97 | 4789 | |
252b5132 RH |
4790 | static void |
4791 | coff_pop_insert () | |
4792 | { | |
4c63da97 | 4793 | pop_insert (coff_pseudo_table); |
252b5132 RH |
4794 | } |
4795 | ||
5110c57e HPN |
4796 | static int |
4797 | coff_separate_stab_sections () | |
4798 | { | |
4799 | return 1; | |
4800 | } | |
4801 | ||
252b5132 RH |
4802 | const struct format_ops coff_format_ops = |
4803 | { | |
4804 | bfd_target_coff_flavour, | |
4c63da97 AM |
4805 | 0, /* dfl_leading_underscore */ |
4806 | 1, /* emit_section_symbols */ | |
5110c57e HPN |
4807 | 0, /* begin */ |
4808 | c_dot_file_symbol, | |
252b5132 | 4809 | coff_frob_symbol, |
4c63da97 | 4810 | 0, /* frob_file */ |
339681c0 | 4811 | 0, /* frob_file_before_adjust */ |
a161fe53 | 4812 | 0, /* frob_file_before_fix */ |
252b5132 | 4813 | coff_frob_file_after_relocs, |
4c63da97 AM |
4814 | 0, /* s_get_size */ |
4815 | 0, /* s_set_size */ | |
4816 | 0, /* s_get_align */ | |
4817 | 0, /* s_set_align */ | |
4818 | 0, /* s_get_other */ | |
5110c57e | 4819 | 0, /* s_set_other */ |
4c63da97 | 4820 | 0, /* s_get_desc */ |
5110c57e HPN |
4821 | 0, /* s_set_desc */ |
4822 | 0, /* s_get_type */ | |
4823 | 0, /* s_set_type */ | |
4c63da97 AM |
4824 | 0, /* copy_symbol_attributes */ |
4825 | 0, /* generate_asm_lineno */ | |
4826 | 0, /* process_stab */ | |
5110c57e HPN |
4827 | coff_separate_stab_sections, |
4828 | obj_coff_init_stab_section, | |
4c63da97 | 4829 | 0, /* sec_sym_ok_for_reloc */ |
252b5132 | 4830 | coff_pop_insert, |
4c63da97 | 4831 | 0, /* ecoff_set_ext */ |
252b5132 | 4832 | coff_obj_read_begin_hook, |
4c63da97 | 4833 | coff_obj_symbol_new_hook |
252b5132 RH |
4834 | }; |
4835 | ||
4836 | #endif |