Commit | Line | Data |
---|---|---|
fecd2382 | 1 | /* coff object file format |
055a75ef KR |
2 | Copyright (C) 1989, 1990, 1991, 1992, 1993, 1994 |
3 | Free Software Foundation, Inc. | |
355afbcd | 4 | |
a39116f1 | 5 | This file is part of GAS. |
355afbcd | 6 | |
a39116f1 RP |
7 | GAS is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
355afbcd | 11 | |
a39116f1 RP |
12 | GAS is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
355afbcd | 16 | |
a39116f1 RP |
17 | You should have received a copy of the GNU General Public License |
18 | along with GAS; see the file COPYING. If not, write to | |
19 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
fecd2382 | 20 | |
fecd2382 | 21 | #include "as.h" |
fecd2382 | 22 | #include "obstack.h" |
8fb85d50 | 23 | #include "subsegs.h" |
fecd2382 | 24 | |
2283f8a0 KR |
25 | #ifdef BFD_ASSEMBLER |
26 | ||
355afbcd KR |
27 | static symbolS *tag_find_or_make PARAMS ((char *name)); |
28 | static symbolS *tag_find PARAMS ((char *name)); | |
8fb85d50 KR |
29 | static void tag_init PARAMS ((void)); |
30 | static void tag_insert PARAMS ((const char *name, symbolS * symbolP)); | |
31 | const char *s_get_name PARAMS ((symbolS * s)); | |
1f029792 | 32 | |
8fb85d50 | 33 | static void obj_coff_def PARAMS ((int)); |
98c6bbbe KR |
34 | static void obj_coff_dim PARAMS ((int)); |
35 | static void obj_coff_endef PARAMS ((int)); | |
36 | static void obj_coff_line PARAMS ((int)); | |
85051959 | 37 | static void obj_coff_ln PARAMS ((int)); |
98c6bbbe KR |
38 | static void obj_coff_scl PARAMS ((int)); |
39 | static void obj_coff_size PARAMS ((int)); | |
40 | static void obj_coff_tag PARAMS ((int)); | |
41 | static void obj_coff_type PARAMS ((int)); | |
42 | static void obj_coff_val PARAMS ((int)); | |
355afbcd | 43 | |
85051959 | 44 | static void SA_SET_SYM_TAGNDX PARAMS ((symbolS *, symbolS *)); |
85051959 | 45 | |
fecd2382 | 46 | static struct hash_control *tag_hash; |
355afbcd | 47 | static symbolS *def_symbol_in_progress; |
fecd2382 | 48 | |
355afbcd KR |
49 | const pseudo_typeS obj_pseudo_table[] = |
50 | { | |
355afbcd KR |
51 | {"def", obj_coff_def, 0}, |
52 | {"dim", obj_coff_dim, 0}, | |
53 | {"endef", obj_coff_endef, 0}, | |
54 | {"line", obj_coff_line, 0}, | |
55 | {"ln", obj_coff_ln, 0}, | |
85051959 | 56 | {"appline", obj_coff_ln, 1}, |
355afbcd KR |
57 | {"scl", obj_coff_scl, 0}, |
58 | {"size", obj_coff_size, 0}, | |
59 | {"tag", obj_coff_tag, 0}, | |
60 | {"type", obj_coff_type, 0}, | |
61 | {"val", obj_coff_val, 0}, | |
055a75ef | 62 | { "section", obj_coff_section, 0 }, |
355afbcd | 63 | {"ident", s_ignore, 0}, /* we don't yet handle this. */ |
355afbcd | 64 | {"optim", s_ignore, 0}, /* For sun386i cc (?) */ |
85051959 | 65 | /* other stuff */ |
355afbcd KR |
66 | {"ABORT", s_abort, 0}, |
67 | ||
68 | {NULL} /* end sentinel */ | |
69 | }; /* obj_pseudo_table */ | |
8fb85d50 KR |
70 | \f |
71 | /* stack stuff */ | |
72 | typedef struct | |
73 | { | |
74 | unsigned long chunk_size; | |
75 | unsigned long element_size; | |
76 | unsigned long size; | |
77 | char *data; | |
78 | unsigned long pointer; | |
79 | } | |
80 | stack; | |
81 | ||
82 | static stack * | |
83 | stack_init (chunk_size, element_size) | |
84 | unsigned long chunk_size; | |
85 | unsigned long element_size; | |
86 | { | |
87 | stack *st; | |
88 | ||
89 | st = (stack *) malloc (sizeof (stack)); | |
90 | if (!st) | |
91 | return 0; | |
92 | st->data = malloc (chunk_size); | |
93 | if (!st->data) | |
94 | { | |
95 | free (st); | |
96 | return 0; | |
97 | } | |
98 | st->pointer = 0; | |
99 | st->size = chunk_size; | |
100 | st->chunk_size = chunk_size; | |
101 | st->element_size = element_size; | |
102 | return st; | |
103 | } | |
104 | ||
105 | static void | |
106 | stack_delete (st) | |
107 | stack *st; | |
108 | { | |
109 | free (st->data); | |
110 | free (st); | |
111 | } | |
112 | ||
113 | static char * | |
114 | stack_push (st, element) | |
115 | stack *st; | |
116 | char *element; | |
117 | { | |
118 | if (st->pointer + st->element_size >= st->size) | |
119 | { | |
120 | st->size += st->chunk_size; | |
121 | if ((st->data = xrealloc (st->data, st->size)) == (char *) 0) | |
122 | return (char *) 0; | |
123 | } | |
124 | memcpy (st->data + st->pointer, element, st->element_size); | |
125 | st->pointer += st->element_size; | |
126 | return st->data + st->pointer; | |
127 | } | |
128 | ||
129 | static char * | |
130 | stack_pop (st) | |
131 | stack *st; | |
132 | { | |
133 | if (st->pointer < st->element_size) | |
134 | { | |
135 | st->pointer = 0; | |
136 | return (char *) 0; | |
137 | } | |
138 | st->pointer -= st->element_size; | |
139 | return st->data + st->pointer; | |
140 | } | |
141 | \f | |
142 | /* | |
143 | * Maintain a list of the tagnames of the structres. | |
144 | */ | |
145 | ||
146 | static void | |
147 | tag_init () | |
148 | { | |
149 | tag_hash = hash_new (); | |
150 | } | |
151 | ||
152 | static void | |
153 | tag_insert (name, symbolP) | |
154 | const char *name; | |
155 | symbolS *symbolP; | |
156 | { | |
157 | const char *error_string; | |
158 | ||
159 | if ((error_string = hash_jam (tag_hash, name, (char *) symbolP))) | |
160 | { | |
161 | as_fatal ("Inserting \"%s\" into structure table failed: %s", | |
162 | name, error_string); | |
163 | } | |
164 | } | |
fecd2382 | 165 | |
8fb85d50 KR |
166 | static symbolS * |
167 | tag_find_or_make (name) | |
168 | char *name; | |
169 | { | |
170 | symbolS *symbolP; | |
171 | ||
172 | if ((symbolP = tag_find (name)) == NULL) | |
173 | { | |
174 | symbolP = symbol_new (name, undefined_section, | |
175 | 0, &zero_address_frag); | |
176 | ||
177 | tag_insert (S_GET_NAME (symbolP), symbolP); | |
178 | symbol_table_insert (symbolP); | |
179 | } /* not found */ | |
180 | ||
181 | return symbolP; | |
182 | } | |
183 | ||
184 | static symbolS * | |
185 | tag_find (name) | |
186 | char *name; | |
187 | { | |
188 | #ifdef STRIP_UNDERSCORE | |
189 | if (*name == '_') | |
190 | name++; | |
191 | #endif /* STRIP_UNDERSCORE */ | |
192 | return (symbolS *) hash_find (tag_hash, name); | |
193 | } | |
194 | \f | |
85051959 ILT |
195 | struct line_no { |
196 | struct line_no *next; | |
197 | fragS *frag; | |
198 | alent l; | |
199 | }; | |
85051959 ILT |
200 | |
201 | #define GET_FILENAME_STRING(X) \ | |
202 | ((char*)(&((X)->sy_symbol.ost_auxent->x_file.x_n.x_offset))[1]) | |
fecd2382 | 203 | |
85051959 ILT |
204 | /* @@ Ick. */ |
205 | static segT | |
206 | fetch_coff_debug_section () | |
207 | { | |
208 | static segT debug_section; | |
209 | if (!debug_section) | |
210 | { | |
211 | CONST asymbol *s; | |
212 | s = bfd_make_debug_symbol (stdoutput, (char *) 0, 0); | |
213 | assert (s != 0); | |
214 | debug_section = s->section; | |
215 | } | |
216 | return debug_section; | |
217 | } | |
218 | ||
055a75ef | 219 | void |
85051959 ILT |
220 | SA_SET_SYM_ENDNDX (sym, val) |
221 | symbolS *sym; | |
222 | symbolS *val; | |
223 | { | |
224 | combined_entry_type *entry, *p; | |
225 | ||
226 | entry = &coffsymbol (sym->bsym)->native[1]; | |
227 | p = coffsymbol (val->bsym)->native; | |
228 | entry->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p = p; | |
229 | entry->fix_end = 1; | |
230 | } | |
231 | ||
232 | static void | |
233 | SA_SET_SYM_TAGNDX (sym, val) | |
234 | symbolS *sym; | |
235 | symbolS *val; | |
236 | { | |
237 | combined_entry_type *entry, *p; | |
238 | ||
239 | entry = &coffsymbol (sym->bsym)->native[1]; | |
240 | p = coffsymbol (val->bsym)->native; | |
241 | entry->u.auxent.x_sym.x_tagndx.p = p; | |
242 | entry->fix_tag = 1; | |
243 | } | |
244 | ||
98c6bbbe KR |
245 | static int |
246 | S_GET_DATA_TYPE (sym) | |
247 | symbolS *sym; | |
248 | { | |
249 | return coffsymbol (sym->bsym)->native->u.syment.n_type; | |
250 | } | |
251 | ||
055a75ef | 252 | int |
98c6bbbe KR |
253 | S_SET_DATA_TYPE (sym, val) |
254 | symbolS *sym; | |
255 | int val; | |
256 | { | |
257 | coffsymbol (sym->bsym)->native->u.syment.n_type = val; | |
258 | return val; | |
259 | } | |
260 | ||
261 | int | |
262 | S_GET_STORAGE_CLASS (sym) | |
263 | symbolS *sym; | |
264 | { | |
265 | return coffsymbol (sym->bsym)->native->u.syment.n_sclass; | |
266 | } | |
267 | ||
268 | int | |
269 | S_SET_STORAGE_CLASS (sym, val) | |
270 | symbolS *sym; | |
271 | int val; | |
272 | { | |
273 | coffsymbol (sym->bsym)->native->u.syment.n_sclass = val; | |
274 | return val; | |
275 | } | |
276 | ||
fecd2382 RP |
277 | /* Merge a debug symbol containing debug information into a normal symbol. */ |
278 | ||
355afbcd KR |
279 | void |
280 | c_symbol_merge (debug, normal) | |
281 | symbolS *debug; | |
282 | symbolS *normal; | |
fecd2382 | 283 | { |
355afbcd KR |
284 | S_SET_DATA_TYPE (normal, S_GET_DATA_TYPE (debug)); |
285 | S_SET_STORAGE_CLASS (normal, S_GET_STORAGE_CLASS (debug)); | |
286 | ||
287 | if (S_GET_NUMBER_AUXILIARY (debug) > S_GET_NUMBER_AUXILIARY (normal)) | |
85051959 ILT |
288 | /* take the most we have */ |
289 | S_SET_NUMBER_AUXILIARY (normal, S_GET_NUMBER_AUXILIARY (debug)); | |
355afbcd KR |
290 | |
291 | if (S_GET_NUMBER_AUXILIARY (debug) > 0) | |
292 | { | |
85051959 | 293 | /* Move all the auxiliary information. */ |
85051959 ILT |
294 | /* @@ How many fields do we want to preserve? Would it make more |
295 | sense to pick and choose those we want to copy? Should look | |
296 | into this further.... [raeburn:19920512.2209EST] */ | |
297 | alent *linenos; | |
298 | linenos = coffsymbol (normal->bsym)->lineno; | |
299 | memcpy ((char *) &coffsymbol (normal->bsym)->native, | |
300 | (char *) &coffsymbol (debug->bsym)->native, | |
301 | S_GET_NUMBER_AUXILIARY(debug) * AUXESZ); | |
302 | coffsymbol (normal->bsym)->lineno = linenos; | |
85051959 | 303 | } |
355afbcd KR |
304 | |
305 | /* Move the debug flags. */ | |
306 | SF_SET_DEBUG_FIELD (normal, SF_GET_DEBUG_FIELD (debug)); | |
98c6bbbe | 307 | } |
fecd2382 | 308 | |
85051959 | 309 | static symbolS *previous_file_symbol; |
355afbcd KR |
310 | void |
311 | c_dot_file_symbol (filename) | |
312 | char *filename; | |
fecd2382 | 313 | { |
355afbcd KR |
314 | symbolS *symbolP; |
315 | ||
85051959 ILT |
316 | symbolP = symbol_new (filename, &bfd_abs_section, 0, |
317 | &zero_address_frag); | |
355afbcd KR |
318 | |
319 | S_SET_STORAGE_CLASS (symbolP, C_FILE); | |
320 | S_SET_NUMBER_AUXILIARY (symbolP, 1); | |
85051959 | 321 | |
85051959 | 322 | symbolP->bsym->flags = BSF_DEBUGGING; |
355afbcd KR |
323 | |
324 | #ifndef NO_LISTING | |
325 | { | |
326 | extern int listing; | |
327 | if (listing) | |
328 | { | |
329 | listing_source_file (filename); | |
330 | } | |
331 | } | |
332 | #endif | |
333 | ||
355afbcd KR |
334 | S_SET_VALUE (symbolP, (long) previous_file_symbol); |
335 | ||
336 | previous_file_symbol = symbolP; | |
337 | ||
338 | /* Make sure that the symbol is first on the symbol chain */ | |
339 | if (symbol_rootP != symbolP) | |
340 | { | |
341 | if (symbolP == symbol_lastP) | |
342 | { | |
343 | symbol_lastP = symbol_lastP->sy_previous; | |
344 | } /* if it was the last thing on the list */ | |
345 | ||
346 | symbol_remove (symbolP, &symbol_rootP, &symbol_lastP); | |
347 | symbol_insert (symbolP, symbol_rootP, &symbol_rootP, &symbol_lastP); | |
348 | symbol_rootP = symbolP; | |
349 | } /* if not first on the list */ | |
85051959 | 350 | } |
355afbcd | 351 | |
fecd2382 RP |
352 | /* |
353 | * Build a 'section static' symbol. | |
354 | */ | |
355 | ||
355afbcd KR |
356 | char * |
357 | c_section_symbol (name, value, length, nreloc, nlnno) | |
358 | char *name; | |
359 | long value; | |
360 | long length; | |
361 | unsigned short nreloc; | |
362 | unsigned short nlnno; | |
fecd2382 | 363 | { |
355afbcd KR |
364 | symbolS *symbolP; |
365 | ||
366 | symbolP = symbol_new (name, | |
367 | (name[1] == 't' | |
85051959 ILT |
368 | ? text_section |
369 | : name[1] == 'd' | |
370 | ? data_section | |
371 | : bss_section), | |
355afbcd KR |
372 | value, |
373 | &zero_address_frag); | |
374 | ||
375 | S_SET_STORAGE_CLASS (symbolP, C_STAT); | |
376 | S_SET_NUMBER_AUXILIARY (symbolP, 1); | |
377 | ||
378 | SA_SET_SCN_SCNLEN (symbolP, length); | |
379 | SA_SET_SCN_NRELOC (symbolP, nreloc); | |
380 | SA_SET_SCN_NLINNO (symbolP, nlnno); | |
381 | ||
382 | SF_SET_STATICS (symbolP); | |
383 | ||
384 | return (char *) symbolP; | |
98c6bbbe | 385 | } |
355afbcd | 386 | |
fecd2382 RP |
387 | /* Line number handling */ |
388 | ||
257df791 | 389 | int coff_line_base; |
98c6bbbe | 390 | |
85051959 | 391 | /* Symbol of last function, which we should hang line#s off of. */ |
98c6bbbe KR |
392 | static symbolS *line_fsym; |
393 | ||
394 | #define in_function() (line_fsym != 0) | |
395 | #define clear_function() (line_fsym = 0) | |
257df791 | 396 | #define set_function(F) (line_fsym = (F), coff_add_linesym (F)) |
85051959 | 397 | |
98c6bbbe | 398 | \f |
355afbcd KR |
399 | void |
400 | obj_symbol_new_hook (symbolP) | |
401 | symbolS *symbolP; | |
fecd2382 | 402 | { |
355afbcd KR |
403 | char underscore = 0; /* Symbol has leading _ */ |
404 | ||
85051959 ILT |
405 | { |
406 | long sz = (OBJ_COFF_MAX_AUXENTRIES + 1) * sizeof (combined_entry_type); | |
407 | char *s = (char *) bfd_alloc_by_size_t (stdoutput, sz); | |
408 | memset (s, 0, sz); | |
409 | coffsymbol (symbolP->bsym)->native = (combined_entry_type *) s; | |
410 | } | |
85051959 ILT |
411 | S_SET_DATA_TYPE (symbolP, T_NULL); |
412 | S_SET_STORAGE_CLASS (symbolP, 0); | |
413 | S_SET_NUMBER_AUXILIARY (symbolP, 0); | |
355afbcd | 414 | |
355afbcd KR |
415 | if (S_IS_STRING (symbolP)) |
416 | SF_SET_STRING (symbolP); | |
417 | if (!underscore && S_IS_LOCAL (symbolP)) | |
418 | SF_SET_LOCAL (symbolP); | |
85051959 | 419 | } |
fecd2382 | 420 | |
98c6bbbe | 421 | \f |
fecd2382 RP |
422 | /* |
423 | * Handle .ln directives. | |
424 | */ | |
425 | ||
85051959 ILT |
426 | static symbolS *current_lineno_sym; |
427 | static struct line_no *line_nos; | |
428 | ||
429 | static void | |
430 | add_lineno (frag, offset, num) | |
431 | fragS *frag; | |
432 | int offset; | |
433 | int num; | |
434 | { | |
435 | struct line_no *new_line = (struct line_no *) bfd_alloc_by_size_t (stdoutput, | |
436 | sizeof (struct line_no)); | |
437 | if (!current_lineno_sym) | |
438 | { | |
439 | abort (); | |
440 | } | |
441 | new_line->next = line_nos; | |
442 | new_line->frag = frag; | |
443 | new_line->l.line_number = num; | |
444 | new_line->l.u.offset = offset; | |
445 | line_nos = new_line; | |
446 | } | |
447 | ||
257df791 ILT |
448 | void |
449 | coff_add_linesym (sym) | |
85051959 ILT |
450 | symbolS *sym; |
451 | { | |
452 | if (line_nos) | |
453 | { | |
454 | add_lineno (0, 0, 0); | |
455 | coffsymbol (current_lineno_sym->bsym)->lineno = (alent *) line_nos; | |
456 | line_nos = 0; | |
457 | } | |
458 | current_lineno_sym = sym; | |
459 | } | |
85051959 | 460 | |
355afbcd | 461 | static void |
85051959 ILT |
462 | obj_coff_ln (appline) |
463 | int appline; | |
355afbcd KR |
464 | { |
465 | int l; | |
85051959 ILT |
466 | |
467 | if (! appline && def_symbol_in_progress != NULL) | |
355afbcd KR |
468 | { |
469 | as_warn (".ln pseudo-op inside .def/.endef: ignored."); | |
470 | demand_empty_rest_of_line (); | |
471 | return; | |
85051959 | 472 | } |
355afbcd | 473 | |
85051959 | 474 | l = get_absolute_expression (); |
98c6bbbe KR |
475 | if (!appline) |
476 | { | |
98c6bbbe | 477 | add_lineno (frag_now, frag_now_fix (), l); |
98c6bbbe | 478 | } |
355afbcd KR |
479 | |
480 | #ifndef NO_LISTING | |
481 | { | |
482 | extern int listing; | |
483 | ||
484 | if (listing) | |
485 | { | |
85051959 | 486 | if (! appline) |
257df791 | 487 | l += coff_line_base - 1; |
85051959 | 488 | listing_source_line (l); |
355afbcd KR |
489 | } |
490 | } | |
491 | #endif | |
492 | ||
493 | demand_empty_rest_of_line (); | |
98c6bbbe | 494 | } |
fecd2382 RP |
495 | |
496 | /* | |
497 | * def() | |
498 | * | |
499 | * Handle .def directives. | |
500 | * | |
501 | * One might ask : why can't we symbol_new if the symbol does not | |
502 | * already exist and fill it with debug information. Because of | |
503 | * the C_EFCN special symbol. It would clobber the value of the | |
504 | * function symbol before we have a chance to notice that it is | |
505 | * a C_EFCN. And a second reason is that the code is more clear this | |
506 | * way. (at least I think it is :-). | |
507 | * | |
508 | */ | |
509 | ||
510 | #define SKIP_SEMI_COLON() while (*input_line_pointer++ != ';') | |
511 | #define SKIP_WHITESPACES() while (*input_line_pointer == ' ' || \ | |
a39116f1 RP |
512 | *input_line_pointer == '\t') \ |
513 | input_line_pointer++; | |
fecd2382 | 514 | |
355afbcd KR |
515 | static void |
516 | obj_coff_def (what) | |
517 | int what; | |
fecd2382 | 518 | { |
355afbcd KR |
519 | char name_end; /* Char after the end of name */ |
520 | char *symbol_name; /* Name of the debug symbol */ | |
521 | char *symbol_name_copy; /* Temporary copy of the name */ | |
522 | unsigned int symbol_name_length; | |
355afbcd KR |
523 | |
524 | if (def_symbol_in_progress != NULL) | |
525 | { | |
526 | as_warn (".def pseudo-op used inside of .def/.endef: ignored."); | |
527 | demand_empty_rest_of_line (); | |
528 | return; | |
529 | } /* if not inside .def/.endef */ | |
530 | ||
531 | SKIP_WHITESPACES (); | |
532 | ||
355afbcd | 533 | symbol_name = input_line_pointer; |
85051959 ILT |
534 | #ifdef STRIP_UNDERSCORE |
535 | if (symbol_name[0] == '_' && symbol_name[1] != 0) | |
536 | symbol_name++; | |
537 | #endif /* STRIP_UNDERSCORE */ | |
538 | ||
355afbcd KR |
539 | name_end = get_symbol_end (); |
540 | symbol_name_length = strlen (symbol_name); | |
541 | symbol_name_copy = xmalloc (symbol_name_length + 1); | |
542 | strcpy (symbol_name_copy, symbol_name); | |
543 | ||
544 | /* Initialize the new symbol */ | |
85051959 | 545 | def_symbol_in_progress = symbol_make (symbol_name_copy); |
355afbcd | 546 | def_symbol_in_progress->sy_frag = &zero_address_frag; |
98c6bbbe | 547 | S_SET_VALUE (def_symbol_in_progress, 0); |
355afbcd KR |
548 | |
549 | if (S_IS_STRING (def_symbol_in_progress)) | |
85051959 | 550 | SF_SET_STRING (def_symbol_in_progress); |
355afbcd KR |
551 | |
552 | *input_line_pointer = name_end; | |
553 | ||
554 | demand_empty_rest_of_line (); | |
85051959 | 555 | } |
fecd2382 RP |
556 | |
557 | unsigned int dim_index; | |
1f029792 | 558 | |
355afbcd | 559 | static void |
8fb85d50 KR |
560 | obj_coff_endef (ignore) |
561 | int ignore; | |
355afbcd KR |
562 | { |
563 | symbolS *symbolP; | |
564 | /* DIM BUG FIX sac@cygnus.com */ | |
565 | dim_index = 0; | |
566 | if (def_symbol_in_progress == NULL) | |
567 | { | |
568 | as_warn (".endef pseudo-op used outside of .def/.endef: ignored."); | |
569 | demand_empty_rest_of_line (); | |
570 | return; | |
571 | } /* if not inside .def/.endef */ | |
572 | ||
573 | /* Set the section number according to storage class. */ | |
574 | switch (S_GET_STORAGE_CLASS (def_symbol_in_progress)) | |
575 | { | |
576 | case C_STRTAG: | |
577 | case C_ENTAG: | |
578 | case C_UNTAG: | |
579 | SF_SET_TAG (def_symbol_in_progress); | |
580 | /* intentional fallthrough */ | |
581 | case C_FILE: | |
582 | case C_TPDEF: | |
583 | SF_SET_DEBUG (def_symbol_in_progress); | |
85051959 | 584 | S_SET_SEGMENT (def_symbol_in_progress, fetch_coff_debug_section ()); |
355afbcd KR |
585 | break; |
586 | ||
587 | case C_EFCN: | |
588 | SF_SET_LOCAL (def_symbol_in_progress); /* Do not emit this symbol. */ | |
589 | /* intentional fallthrough */ | |
590 | case C_BLOCK: | |
591 | SF_SET_PROCESS (def_symbol_in_progress); /* Will need processing before writing */ | |
592 | /* intentional fallthrough */ | |
593 | case C_FCN: | |
85051959 ILT |
594 | { |
595 | CONST char *name; | |
596 | S_SET_SEGMENT (def_symbol_in_progress, text_section); | |
355afbcd | 597 | |
85051959 | 598 | name = bfd_asymbol_name (def_symbol_in_progress->bsym); |
85051959 ILT |
599 | if (name[1] == 'b' && name[2] == 'f') |
600 | { | |
98c6bbbe | 601 | if (! in_function ()) |
85051959 | 602 | as_warn ("`%s' symbol without preceding function", name); |
98c6bbbe | 603 | /* SA_SET_SYM_LNNO (def_symbol_in_progress, 12345);*/ |
85051959 ILT |
604 | /* Will need relocating */ |
605 | SF_SET_PROCESS (def_symbol_in_progress); | |
98c6bbbe | 606 | clear_function (); |
85051959 ILT |
607 | } |
608 | } | |
355afbcd KR |
609 | break; |
610 | ||
fecd2382 | 611 | #ifdef C_AUTOARG |
355afbcd | 612 | case C_AUTOARG: |
fecd2382 | 613 | #endif /* C_AUTOARG */ |
355afbcd KR |
614 | case C_AUTO: |
615 | case C_REG: | |
616 | case C_MOS: | |
617 | case C_MOE: | |
618 | case C_MOU: | |
619 | case C_ARG: | |
620 | case C_REGPARM: | |
621 | case C_FIELD: | |
622 | case C_EOS: | |
623 | SF_SET_DEBUG (def_symbol_in_progress); | |
85051959 | 624 | S_SET_SEGMENT (def_symbol_in_progress, absolute_section); |
355afbcd KR |
625 | break; |
626 | ||
627 | case C_EXT: | |
628 | case C_STAT: | |
629 | case C_LABEL: | |
630 | /* Valid but set somewhere else (s_comm, s_lcomm, colon) */ | |
631 | break; | |
632 | ||
633 | case C_USTATIC: | |
634 | case C_EXTDEF: | |
635 | case C_ULABEL: | |
85051959 ILT |
636 | as_warn ("unexpected storage class %d", |
637 | S_GET_STORAGE_CLASS (def_symbol_in_progress)); | |
355afbcd KR |
638 | break; |
639 | } /* switch on storage class */ | |
640 | ||
85051959 ILT |
641 | /* Now that we have built a debug symbol, try to find if we should |
642 | merge with an existing symbol or not. If a symbol is C_EFCN or | |
643 | SEG_ABSOLUTE or untagged SEG_DEBUG it never merges. */ | |
644 | ||
645 | /* Two cases for functions. Either debug followed by definition or | |
646 | definition followed by debug. For definition first, we will | |
647 | merge the debug symbol into the definition. For debug first, the | |
648 | lineno entry MUST point to the definition function or else it | |
649 | will point off into space when obj_crawl_symbol_chain() merges | |
650 | the debug symbol into the real symbol. Therefor, let's presume | |
651 | the debug symbol is a real function reference. */ | |
652 | ||
653 | /* FIXME-SOON If for some reason the definition label/symbol is | |
654 | never seen, this will probably leave an undefined symbol at link | |
655 | time. */ | |
355afbcd KR |
656 | |
657 | if (S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_EFCN | |
85051959 ILT |
658 | || (!strcmp (bfd_get_section_name (stdoutput, |
659 | S_GET_SEGMENT (def_symbol_in_progress)), | |
660 | "*DEBUG*") | |
661 | && !SF_GET_TAG (def_symbol_in_progress)) | |
85051959 | 662 | || S_GET_SEGMENT (def_symbol_in_progress) == absolute_section |
355afbcd KR |
663 | || (symbolP = symbol_find_base (S_GET_NAME (def_symbol_in_progress), DO_NOT_STRIP)) == NULL) |
664 | { | |
85051959 ILT |
665 | if (def_symbol_in_progress != symbol_lastP) |
666 | symbol_append (def_symbol_in_progress, symbol_lastP, &symbol_rootP, | |
667 | &symbol_lastP); | |
355afbcd KR |
668 | } |
669 | else | |
670 | { | |
85051959 ILT |
671 | /* This symbol already exists, merge the newly created symbol |
672 | into the old one. This is not mandatory. The linker can | |
673 | handle duplicate symbols correctly. But I guess that it save | |
674 | a *lot* of space if the assembly file defines a lot of | |
675 | symbols. [loic] */ | |
355afbcd | 676 | |
85051959 ILT |
677 | /* The debug entry (def_symbol_in_progress) is merged into the |
678 | previous definition. */ | |
355afbcd KR |
679 | |
680 | c_symbol_merge (def_symbol_in_progress, symbolP); | |
681 | /* FIXME-SOON Should *def_symbol_in_progress be free'd? xoxorich. */ | |
682 | def_symbol_in_progress = symbolP; | |
683 | ||
684 | if (SF_GET_FUNCTION (def_symbol_in_progress) | |
685 | || SF_GET_TAG (def_symbol_in_progress)) | |
686 | { | |
85051959 ILT |
687 | /* For functions, and tags, the symbol *must* be where the |
688 | debug symbol appears. Move the existing symbol to the | |
689 | current place. */ | |
355afbcd KR |
690 | /* If it already is at the end of the symbol list, do nothing */ |
691 | if (def_symbol_in_progress != symbol_lastP) | |
692 | { | |
693 | symbol_remove (def_symbol_in_progress, &symbol_rootP, &symbol_lastP); | |
694 | symbol_append (def_symbol_in_progress, symbol_lastP, &symbol_rootP, &symbol_lastP); | |
85051959 ILT |
695 | } |
696 | } | |
697 | } | |
355afbcd KR |
698 | |
699 | if (SF_GET_TAG (def_symbol_in_progress) | |
700 | && symbol_find_base (S_GET_NAME (def_symbol_in_progress), DO_NOT_STRIP) == NULL) | |
701 | { | |
702 | tag_insert (S_GET_NAME (def_symbol_in_progress), def_symbol_in_progress); | |
85051959 | 703 | } |
355afbcd KR |
704 | |
705 | if (SF_GET_FUNCTION (def_symbol_in_progress)) | |
706 | { | |
707 | know (sizeof (def_symbol_in_progress) <= sizeof (long)); | |
98c6bbbe | 708 | set_function (def_symbol_in_progress); |
355afbcd KR |
709 | SF_SET_PROCESS (def_symbol_in_progress); |
710 | ||
711 | if (symbolP == NULL) | |
712 | { | |
85051959 ILT |
713 | /* That is, if this is the first time we've seen the |
714 | function... */ | |
355afbcd | 715 | symbol_table_insert (def_symbol_in_progress); |
98c6bbbe KR |
716 | } /* definition follows debug */ |
717 | } /* Create the line number entry pointing to the function being defined */ | |
355afbcd KR |
718 | |
719 | def_symbol_in_progress = NULL; | |
720 | demand_empty_rest_of_line (); | |
85051959 | 721 | } |
355afbcd KR |
722 | |
723 | static void | |
8fb85d50 KR |
724 | obj_coff_dim (ignore) |
725 | int ignore; | |
355afbcd | 726 | { |
98c6bbbe | 727 | int dim_index; |
355afbcd KR |
728 | |
729 | if (def_symbol_in_progress == NULL) | |
730 | { | |
731 | as_warn (".dim pseudo-op used outside of .def/.endef: ignored."); | |
732 | demand_empty_rest_of_line (); | |
733 | return; | |
734 | } /* if not inside .def/.endef */ | |
735 | ||
736 | S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); | |
737 | ||
738 | for (dim_index = 0; dim_index < DIMNUM; dim_index++) | |
739 | { | |
740 | SKIP_WHITESPACES (); | |
98c6bbbe KR |
741 | SA_SET_SYM_DIMEN (def_symbol_in_progress, dim_index, |
742 | get_absolute_expression ()); | |
355afbcd KR |
743 | |
744 | switch (*input_line_pointer) | |
745 | { | |
355afbcd KR |
746 | case ',': |
747 | input_line_pointer++; | |
748 | break; | |
749 | ||
750 | default: | |
751 | as_warn ("badly formed .dim directive ignored"); | |
752 | /* intentional fallthrough */ | |
753 | case '\n': | |
754 | case ';': | |
755 | dim_index = DIMNUM; | |
756 | break; | |
98c6bbbe KR |
757 | } |
758 | } | |
355afbcd KR |
759 | |
760 | demand_empty_rest_of_line (); | |
98c6bbbe | 761 | } |
355afbcd KR |
762 | |
763 | static void | |
8fb85d50 KR |
764 | obj_coff_line (ignore) |
765 | int ignore; | |
355afbcd KR |
766 | { |
767 | int this_base; | |
768 | ||
769 | if (def_symbol_in_progress == NULL) | |
770 | { | |
98c6bbbe | 771 | /* Probably stabs-style line? */ |
85051959 | 772 | obj_coff_ln (0); |
355afbcd | 773 | return; |
98c6bbbe | 774 | } |
355afbcd KR |
775 | |
776 | this_base = get_absolute_expression (); | |
257df791 ILT |
777 | if (this_base > coff_line_base) |
778 | coff_line_base = this_base; | |
355afbcd KR |
779 | |
780 | S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); | |
257df791 | 781 | SA_SET_SYM_LNNO (def_symbol_in_progress, coff_line_base); |
355afbcd KR |
782 | |
783 | demand_empty_rest_of_line (); | |
98c6bbbe | 784 | } |
355afbcd KR |
785 | |
786 | static void | |
8fb85d50 KR |
787 | obj_coff_size (ignore) |
788 | int ignore; | |
355afbcd KR |
789 | { |
790 | if (def_symbol_in_progress == NULL) | |
791 | { | |
792 | as_warn (".size pseudo-op used outside of .def/.endef ignored."); | |
793 | demand_empty_rest_of_line (); | |
794 | return; | |
795 | } /* if not inside .def/.endef */ | |
796 | ||
797 | S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); | |
798 | SA_SET_SYM_SIZE (def_symbol_in_progress, get_absolute_expression ()); | |
799 | demand_empty_rest_of_line (); | |
98c6bbbe | 800 | } |
355afbcd KR |
801 | |
802 | static void | |
8fb85d50 KR |
803 | obj_coff_scl (ignore) |
804 | int ignore; | |
355afbcd KR |
805 | { |
806 | if (def_symbol_in_progress == NULL) | |
807 | { | |
808 | as_warn (".scl pseudo-op used outside of .def/.endef ignored."); | |
809 | demand_empty_rest_of_line (); | |
810 | return; | |
811 | } /* if not inside .def/.endef */ | |
812 | ||
813 | S_SET_STORAGE_CLASS (def_symbol_in_progress, get_absolute_expression ()); | |
814 | demand_empty_rest_of_line (); | |
98c6bbbe | 815 | } |
355afbcd KR |
816 | |
817 | static void | |
8fb85d50 KR |
818 | obj_coff_tag (ignore) |
819 | int ignore; | |
a39116f1 | 820 | { |
355afbcd KR |
821 | char *symbol_name; |
822 | char name_end; | |
823 | ||
824 | if (def_symbol_in_progress == NULL) | |
825 | { | |
826 | as_warn (".tag pseudo-op used outside of .def/.endef ignored."); | |
827 | demand_empty_rest_of_line (); | |
828 | return; | |
98c6bbbe | 829 | } |
355afbcd KR |
830 | |
831 | S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); | |
832 | symbol_name = input_line_pointer; | |
833 | name_end = get_symbol_end (); | |
834 | ||
98c6bbbe KR |
835 | /* Assume that the symbol referred to by .tag is always defined. |
836 | This was a bad assumption. I've added find_or_make. xoxorich. */ | |
85051959 | 837 | SA_SET_SYM_TAGNDX (def_symbol_in_progress, |
98c6bbbe | 838 | tag_find_or_make (symbol_name)); |
355afbcd KR |
839 | if (SA_GET_SYM_TAGNDX (def_symbol_in_progress) == 0L) |
840 | { | |
841 | as_warn ("tag not found for .tag %s", symbol_name); | |
842 | } /* not defined */ | |
843 | ||
844 | SF_SET_TAGGED (def_symbol_in_progress); | |
845 | *input_line_pointer = name_end; | |
846 | ||
847 | demand_empty_rest_of_line (); | |
98c6bbbe | 848 | } |
355afbcd KR |
849 | |
850 | static void | |
8fb85d50 KR |
851 | obj_coff_type (ignore) |
852 | int ignore; | |
355afbcd KR |
853 | { |
854 | if (def_symbol_in_progress == NULL) | |
855 | { | |
856 | as_warn (".type pseudo-op used outside of .def/.endef ignored."); | |
857 | demand_empty_rest_of_line (); | |
858 | return; | |
859 | } /* if not inside .def/.endef */ | |
860 | ||
861 | S_SET_DATA_TYPE (def_symbol_in_progress, get_absolute_expression ()); | |
862 | ||
863 | if (ISFCN (S_GET_DATA_TYPE (def_symbol_in_progress)) && | |
864 | S_GET_STORAGE_CLASS (def_symbol_in_progress) != C_TPDEF) | |
865 | { | |
866 | SF_SET_FUNCTION (def_symbol_in_progress); | |
867 | } /* is a function */ | |
868 | ||
869 | demand_empty_rest_of_line (); | |
98c6bbbe | 870 | } |
355afbcd KR |
871 | |
872 | static void | |
8fb85d50 KR |
873 | obj_coff_val (ignore) |
874 | int ignore; | |
355afbcd KR |
875 | { |
876 | if (def_symbol_in_progress == NULL) | |
877 | { | |
878 | as_warn (".val pseudo-op used outside of .def/.endef ignored."); | |
879 | demand_empty_rest_of_line (); | |
880 | return; | |
881 | } /* if not inside .def/.endef */ | |
882 | ||
883 | if (is_name_beginner (*input_line_pointer)) | |
884 | { | |
885 | char *symbol_name = input_line_pointer; | |
886 | char name_end = get_symbol_end (); | |
887 | ||
888 | if (!strcmp (symbol_name, ".")) | |
889 | { | |
890 | def_symbol_in_progress->sy_frag = frag_now; | |
8fb85d50 | 891 | S_SET_VALUE (def_symbol_in_progress, (valueT) frag_now_fix ()); |
355afbcd KR |
892 | /* If the .val is != from the .def (e.g. statics) */ |
893 | } | |
894 | else if (strcmp (S_GET_NAME (def_symbol_in_progress), symbol_name)) | |
895 | { | |
98c6bbbe | 896 | def_symbol_in_progress->sy_value.X_op = O_symbol; |
5868b1fe ILT |
897 | def_symbol_in_progress->sy_value.X_add_symbol = |
898 | symbol_find_or_make (symbol_name); | |
98c6bbbe | 899 | def_symbol_in_progress->sy_value.X_op_symbol = NULL; |
5868b1fe | 900 | def_symbol_in_progress->sy_value.X_add_number = 0; |
5868b1fe ILT |
901 | |
902 | /* If the segment is undefined when the forward reference is | |
903 | resolved, then copy the segment id from the forward | |
904 | symbol. */ | |
355afbcd KR |
905 | SF_SET_GET_SEGMENT (def_symbol_in_progress); |
906 | } | |
907 | /* Otherwise, it is the name of a non debug symbol and its value will be calculated later. */ | |
908 | *input_line_pointer = name_end; | |
909 | } | |
910 | else | |
911 | { | |
912 | S_SET_VALUE (def_symbol_in_progress, get_absolute_expression ()); | |
913 | } /* if symbol based */ | |
914 | ||
915 | demand_empty_rest_of_line (); | |
98c6bbbe | 916 | } |
fecd2382 | 917 | |
355afbcd KR |
918 | void |
919 | obj_read_begin_hook () | |
920 | { | |
921 | /* These had better be the same. Usually 18 bytes. */ | |
57574979 | 922 | #ifndef BFD_HEADERS |
355afbcd KR |
923 | know (sizeof (SYMENT) == sizeof (AUXENT)); |
924 | know (SYMESZ == AUXESZ); | |
57574979 | 925 | #endif |
355afbcd | 926 | tag_init (); |
85051959 | 927 | } |
fecd2382 | 928 | |
85051959 | 929 | |
055a75ef KR |
930 | symbolS *coff_last_function; |
931 | ||
85051959 | 932 | void |
98c6bbbe | 933 | coff_frob_symbol (symp, punt) |
85051959 ILT |
934 | symbolS *symp; |
935 | int *punt; | |
936 | { | |
055a75ef | 937 | static symbolS *last_tagP; |
85051959 | 938 | static stack *block_stack; |
055a75ef KR |
939 | static symbolS *set_end; |
940 | ||
941 | if (symp == &abs_symbol) | |
942 | { | |
943 | *punt = 1; | |
944 | return; | |
945 | } | |
85051959 | 946 | |
98c6bbbe | 947 | if (current_lineno_sym) |
257df791 | 948 | coff_add_linesym ((symbolS *) 0); |
98c6bbbe | 949 | |
85051959 ILT |
950 | if (!block_stack) |
951 | block_stack = stack_init (512, sizeof (symbolS*)); | |
952 | ||
85051959 ILT |
953 | if (!S_IS_DEFINED (symp) && S_GET_STORAGE_CLASS (symp) != C_STAT) |
954 | S_SET_STORAGE_CLASS (symp, C_EXT); | |
85051959 ILT |
955 | |
956 | if (!SF_GET_DEBUG (symp)) | |
957 | { | |
958 | symbolS *real; | |
959 | if (!SF_GET_LOCAL (symp) | |
960 | && (real = symbol_find_base (S_GET_NAME (symp), DO_NOT_STRIP)) | |
961 | && real != symp) | |
962 | { | |
963 | c_symbol_merge (symp, real); | |
964 | *punt = 1; | |
965 | } | |
966 | if (!S_IS_DEFINED (symp) && !SF_GET_LOCAL (symp)) | |
967 | { | |
968 | assert (S_GET_VALUE (symp) == 0); | |
969 | S_SET_EXTERNAL (symp); | |
970 | } | |
971 | else if (S_GET_STORAGE_CLASS (symp) == C_NULL) | |
972 | { | |
973 | if (S_GET_SEGMENT (symp) == text_section) | |
974 | S_SET_STORAGE_CLASS (symp, C_LABEL); | |
975 | else | |
976 | S_SET_STORAGE_CLASS (symp, C_STAT); | |
977 | } | |
978 | if (SF_GET_PROCESS (symp)) | |
979 | { | |
980 | if (S_GET_STORAGE_CLASS (symp) == C_BLOCK) | |
981 | { | |
982 | if (!strcmp (S_GET_NAME (symp), ".bb")) | |
983 | stack_push (block_stack, (char *) &symp); | |
984 | else | |
985 | { | |
986 | symbolS *begin; | |
987 | begin = *(symbolS **) stack_pop (block_stack); | |
988 | if (begin == 0) | |
989 | as_warn ("mismatched .eb"); | |
990 | else | |
055a75ef | 991 | set_end = begin; |
85051959 ILT |
992 | } |
993 | } | |
055a75ef | 994 | if (coff_last_function == 0 && SF_GET_FUNCTION (symp)) |
85051959 ILT |
995 | { |
996 | union internal_auxent *auxp; | |
055a75ef | 997 | coff_last_function = symp; |
85051959 ILT |
998 | if (S_GET_NUMBER_AUXILIARY (symp) < 1) |
999 | S_SET_NUMBER_AUXILIARY (symp, 1); | |
1000 | auxp = &coffsymbol (symp->bsym)->native[1].u.auxent; | |
1001 | memset (auxp->x_sym.x_fcnary.x_ary.x_dimen, 0, | |
1002 | sizeof (auxp->x_sym.x_fcnary.x_ary.x_dimen)); | |
1003 | } | |
1004 | if (S_GET_STORAGE_CLASS (symp) == C_EFCN) | |
1005 | { | |
055a75ef | 1006 | if (coff_last_function == 0) |
85051959 | 1007 | as_fatal ("C_EFCN symbol out of scope"); |
055a75ef | 1008 | SA_SET_SYM_FSIZE (coff_last_function, |
85051959 | 1009 | (long) (S_GET_VALUE (symp) |
055a75ef KR |
1010 | - S_GET_VALUE (coff_last_function))); |
1011 | set_end = coff_last_function; | |
1012 | coff_last_function = 0; | |
85051959 ILT |
1013 | } |
1014 | } | |
1015 | else if (SF_GET_TAG (symp)) | |
1016 | last_tagP = symp; | |
1017 | else if (S_GET_STORAGE_CLASS (symp) == C_EOS) | |
055a75ef | 1018 | set_end = last_tagP; |
85051959 ILT |
1019 | else if (S_GET_STORAGE_CLASS (symp) == C_FILE) |
1020 | { | |
1021 | if (S_GET_VALUE (symp)) | |
1022 | { | |
1023 | S_SET_VALUE ((symbolS *) S_GET_VALUE (symp), 0xdeadbeef); | |
1024 | S_SET_VALUE (symp, 0); | |
1025 | } | |
1026 | } | |
98c6bbbe KR |
1027 | if (S_IS_EXTERNAL (symp)) |
1028 | S_SET_STORAGE_CLASS (symp, C_EXT); | |
1029 | else if (SF_GET_LOCAL (symp)) | |
85051959 ILT |
1030 | *punt = 1; |
1031 | /* more ... */ | |
1032 | } | |
055a75ef KR |
1033 | |
1034 | if (set_end != (symbolS *) NULL | |
1035 | && ! *punt) | |
1036 | { | |
1037 | SA_SET_SYM_ENDNDX (set_end, symp); | |
1038 | set_end = NULL; | |
1039 | } | |
1040 | ||
85051959 ILT |
1041 | if (coffsymbol (symp->bsym)->lineno) |
1042 | { | |
1043 | int i, n; | |
1044 | struct line_no *lptr; | |
1045 | alent *l; | |
1046 | ||
1047 | lptr = (struct line_no *) coffsymbol (symp->bsym)->lineno; | |
1048 | for (i = 0; lptr; lptr = lptr->next) | |
1049 | i++; | |
1050 | n = i + 1; | |
1051 | lptr = (struct line_no *) coffsymbol (symp->bsym)->lineno; | |
1052 | l = (alent *) bfd_alloc_by_size_t (stdoutput, n * sizeof (alent)); | |
1053 | coffsymbol (symp->bsym)->lineno = l; | |
1054 | for (i = n - 1; i > 0; i--) | |
1055 | { | |
1056 | if (lptr->frag) | |
1057 | lptr->l.u.offset += lptr->frag->fr_address; | |
1058 | l[i] = lptr->l; | |
1059 | lptr = lptr->next; | |
1060 | } | |
1061 | } | |
1062 | } | |
1063 | ||
055a75ef KR |
1064 | /* |
1065 | * implement the .section pseudo op: | |
1066 | * .section name {, "flags"} | |
1067 | * ^ ^ | |
1068 | * | +--- optional flags: 'b' for bss | |
1069 | * | 'i' for info | |
1070 | * +-- section name 'l' for lib | |
1071 | * 'n' for noload | |
1072 | * 'o' for over | |
1073 | * 'w' for data | |
1074 | * 'd' (apparently m88k for data) | |
1075 | * 'x' for text | |
1076 | * But if the argument is not a quoted string, treat it as a | |
1077 | * subsegment number. | |
1078 | */ | |
1079 | ||
1080 | void | |
1081 | obj_coff_section (ignore) | |
1082 | int ignore; | |
85051959 ILT |
1083 | { |
1084 | /* Strip out the section name */ | |
055a75ef | 1085 | char *section_name; |
85051959 | 1086 | char c; |
055a75ef | 1087 | char *name; |
85051959 | 1088 | unsigned int exp; |
055a75ef KR |
1089 | flagword flags; |
1090 | asection *sec; | |
85051959 | 1091 | |
055a75ef KR |
1092 | section_name = input_line_pointer; |
1093 | c = get_symbol_end (); | |
85051959 | 1094 | |
055a75ef KR |
1095 | name = xmalloc (input_line_pointer - section_name + 1); |
1096 | strcpy (name, section_name); | |
1097 | ||
1098 | *input_line_pointer = c; | |
1099 | ||
1100 | SKIP_WHITESPACE (); | |
1101 | ||
1102 | exp = 0; | |
1103 | flags = SEC_NO_FLAGS; | |
1104 | ||
1105 | if (*input_line_pointer == ',') | |
85051959 | 1106 | { |
055a75ef KR |
1107 | ++input_line_pointer; |
1108 | SKIP_WHITESPACE (); | |
1109 | if (*input_line_pointer != '"') | |
1110 | exp = get_absolute_expression (); | |
1111 | else | |
1112 | { | |
1113 | ++input_line_pointer; | |
1114 | while (*input_line_pointer != '"' | |
1115 | && ! is_end_of_line[(unsigned char) *input_line_pointer]) | |
1116 | { | |
1117 | switch (*input_line_pointer) | |
1118 | { | |
1119 | case 'b': flags |= SEC_ALLOC; flags &=~ SEC_LOAD; break; | |
1120 | case 'n': flags &=~ SEC_LOAD; break; | |
1121 | case 'd': | |
1122 | case 'w': flags &=~ SEC_READONLY; break; | |
1123 | case 'x': flags |= SEC_CODE; break; | |
1124 | ||
1125 | case 'i': /* STYP_INFO */ | |
1126 | case 'l': /* STYP_LIB */ | |
1127 | case 'o': /* STYP_OVER */ | |
1128 | as_warn ("unsupported section attribute '%c'", | |
1129 | *input_line_pointer); | |
1130 | break; | |
1131 | ||
1132 | default: | |
1133 | as_warn("unknown section attribute '%c'", | |
1134 | *input_line_pointer); | |
1135 | break; | |
1136 | } | |
1137 | ++input_line_pointer; | |
1138 | } | |
1139 | if (*input_line_pointer == '"') | |
1140 | ++input_line_pointer; | |
1141 | } | |
85051959 | 1142 | } |
055a75ef KR |
1143 | |
1144 | sec = subseg_new (name, (subsegT) exp); | |
1145 | ||
1146 | if (flags != SEC_NO_FLAGS) | |
85051959 | 1147 | { |
055a75ef KR |
1148 | if (! bfd_set_section_flags (stdoutput, sec, flags)) |
1149 | as_warn ("error setting flags for \"%s\": %s", | |
1150 | bfd_section_name (stdoutput, sec), | |
1151 | bfd_errmsg (bfd_get_error ())); | |
85051959 | 1152 | } |
85051959 ILT |
1153 | } |
1154 | ||
1155 | void | |
2283f8a0 | 1156 | coff_adjust_symtab () |
85051959 ILT |
1157 | { |
1158 | if (symbol_rootP == NULL | |
1159 | || S_GET_STORAGE_CLASS (symbol_rootP) != C_FILE) | |
1160 | { | |
1161 | assert (previous_file_symbol == 0); | |
1162 | c_dot_file_symbol ("fake"); | |
1163 | } | |
85051959 | 1164 | } |
71b4de6f KR |
1165 | |
1166 | void | |
8fb85d50 KR |
1167 | coff_frob_section (sec) |
1168 | segT sec; | |
71b4de6f | 1169 | { |
8fb85d50 | 1170 | segT strsec; |
71b4de6f KR |
1171 | char *strname, *p; |
1172 | fragS *fragp; | |
8fb85d50 KR |
1173 | bfd_vma size, n_entries, mask; |
1174 | ||
1175 | /* The COFF back end in BFD requires that all section sizes be | |
1176 | rounded up to multiples of the corresponding section alignments. | |
1177 | Seems kinda silly to me, but that's the way it is. */ | |
1178 | size = bfd_get_section_size_before_reloc (sec); | |
1179 | assert (sec->alignment_power >= stdoutput->xvec->align_power_min); | |
1180 | mask = ((bfd_vma) 1 << (bfd_vma) sec->alignment_power) - 1; | |
1181 | if (size & mask) | |
1182 | bfd_set_section_size (stdoutput, sec, (size + mask) & ~mask); | |
71b4de6f KR |
1183 | |
1184 | /* @@ these should be in a "stabs.h" file, or maybe as.h */ | |
1185 | #ifndef STAB_SECTION_NAME | |
1186 | #define STAB_SECTION_NAME ".stab" | |
1187 | #endif | |
1188 | #ifndef STAB_STRING_SECTION_NAME | |
1189 | #define STAB_STRING_SECTION_NAME ".stabstr" | |
1190 | #endif | |
8fb85d50 | 1191 | if (strcmp (STAB_STRING_SECTION_NAME, sec->name)) |
71b4de6f KR |
1192 | return; |
1193 | ||
8fb85d50 | 1194 | strsec = sec; |
71b4de6f KR |
1195 | sec = subseg_get (STAB_SECTION_NAME, 0); |
1196 | /* size is already rounded up, since other section will be listed first */ | |
1197 | size = bfd_get_section_size_before_reloc (strsec); | |
1198 | ||
1199 | n_entries = bfd_get_section_size_before_reloc (sec) / 12 - 1; | |
1200 | ||
1201 | /* Find first non-empty frag. It should be large enough. */ | |
1202 | fragp = seg_info (sec)->frchainP->frch_root; | |
1203 | while (fragp && fragp->fr_fix == 0) | |
1204 | fragp = fragp->fr_next; | |
1205 | assert (fragp != 0 && fragp->fr_fix >= 12); | |
1206 | ||
1207 | /* Store the values. */ | |
1208 | p = fragp->fr_literal; | |
1209 | bfd_h_put_16 (stdoutput, n_entries, (bfd_byte *) p + 6); | |
1210 | bfd_h_put_32 (stdoutput, size, (bfd_byte *) p + 8); | |
1211 | } | |
1212 | ||
1213 | void | |
1214 | obj_coff_init_stab_section (seg) | |
1215 | segT seg; | |
1216 | { | |
1217 | char *file; | |
1218 | char *p; | |
1219 | char *stabstr_name; | |
1220 | unsigned int stroff; | |
1221 | ||
1222 | /* Make space for this first symbol. */ | |
1223 | p = frag_more (12); | |
1224 | /* Zero it out. */ | |
1225 | memset (p, 0, 12); | |
1226 | as_where (&file, (unsigned int *) NULL); | |
1227 | stabstr_name = (char *) alloca (strlen (seg->name) + 4); | |
1228 | strcpy (stabstr_name, seg->name); | |
1229 | strcat (stabstr_name, "str"); | |
1230 | stroff = get_stab_string_offset (file, stabstr_name); | |
1231 | know (stroff == 1); | |
1232 | md_number_to_chars (p, stroff, 4); | |
1233 | } | |
85051959 | 1234 | |
fecd2382 | 1235 | #ifdef DEBUG |
a39116f1 | 1236 | /* for debugging */ |
98c6bbbe | 1237 | const char * |
355afbcd KR |
1238 | s_get_name (s) |
1239 | symbolS *s; | |
fecd2382 | 1240 | { |
355afbcd | 1241 | return ((s == NULL) ? "(NULL)" : S_GET_NAME (s)); |
71b4de6f | 1242 | } |
355afbcd KR |
1243 | |
1244 | void | |
1245 | symbol_dump () | |
1246 | { | |
1247 | symbolS *symbolP; | |
1248 | ||
1249 | for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next (symbolP)) | |
1250 | { | |
85051959 ILT |
1251 | printf("0x%lx: \"%s\" type = %ld, class = %d, segment = %d\n", |
1252 | (unsigned long) symbolP, | |
1253 | S_GET_NAME(symbolP), | |
1254 | (long) S_GET_DATA_TYPE(symbolP), | |
1255 | S_GET_STORAGE_CLASS(symbolP), | |
1256 | (int) S_GET_SEGMENT(symbolP)); | |
85051959 ILT |
1257 | } |
1258 | } | |
355afbcd | 1259 | |
fecd2382 RP |
1260 | #endif /* DEBUG */ |
1261 | ||
2283f8a0 KR |
1262 | #else /* not BFD_ASSEMBLER */ |
1263 | ||
1264 | #include "frags.h" | |
1265 | /* This is needed because we include internal bfd things. */ | |
1266 | #include <time.h> | |
1267 | #include "../bfd/libbfd.h" | |
1268 | #include "../bfd/libcoff.h" | |
1269 | ||
1270 | /* The NOP_OPCODE is for the alignment fill value. Fill with nop so | |
1271 | that we can stick sections together without causing trouble. */ | |
1272 | #ifndef NOP_OPCODE | |
1273 | #define NOP_OPCODE 0x00 | |
1274 | #endif | |
1275 | ||
1276 | #define MIN(a,b) ((a) < (b)? (a) : (b)) | |
1277 | /* This vector is used to turn an internal segment into a section # | |
1278 | suitable for insertion into a coff symbol table | |
1279 | */ | |
1280 | ||
1281 | const short seg_N_TYPE[] = | |
1282 | { /* in: segT out: N_TYPE bits */ | |
1283 | C_ABS_SECTION, | |
1284 | 1, | |
1285 | 2, | |
1286 | 3, | |
1287 | 4, | |
1288 | 5, | |
1289 | 6, | |
1290 | 7, | |
1291 | 8, | |
1292 | 9, | |
1293 | 10, | |
1294 | C_UNDEF_SECTION, /* SEG_UNKNOWN */ | |
1295 | C_UNDEF_SECTION, /* SEG_GOOF */ | |
1296 | C_UNDEF_SECTION, /* SEG_EXPR */ | |
1297 | C_DEBUG_SECTION, /* SEG_DEBUG */ | |
1298 | C_NTV_SECTION, /* SEG_NTV */ | |
1299 | C_PTV_SECTION, /* SEG_PTV */ | |
1300 | C_REGISTER_SECTION, /* SEG_REGISTER */ | |
1301 | }; | |
1302 | ||
1303 | int function_lineoff = -1; /* Offset in line#s where the last function | |
1304 | started (the odd entry for line #0) */ | |
1305 | ||
1306 | static symbolS *last_line_symbol; | |
1307 | ||
1308 | /* Add 4 to the real value to get the index and compensate the | |
1309 | negatives. This vector is used by S_GET_SEGMENT to turn a coff | |
1310 | section number into a segment number | |
1311 | */ | |
1312 | static symbolS *previous_file_symbol = NULL; | |
1313 | void c_symbol_merge (); | |
1314 | static int line_base; | |
1315 | ||
1316 | symbolS *c_section_symbol (); | |
1317 | bfd *abfd; | |
1318 | ||
1319 | static void fixup_segment PARAMS ((segment_info_type *segP, | |
1320 | segT this_segment_type)); | |
1321 | ||
1322 | ||
1323 | static void fixup_mdeps PARAMS ((fragS *, | |
1324 | object_headers *, | |
1325 | segT)); | |
1326 | ||
1327 | ||
1328 | static void fill_section PARAMS ((bfd * abfd, | |
1329 | object_headers *, | |
1330 | unsigned long *)); | |
1331 | ||
1332 | ||
1333 | static symbolS *tag_find_or_make PARAMS ((char *name)); | |
1334 | static symbolS *tag_find PARAMS ((char *name)); | |
1335 | static void tag_init PARAMS ((void)); | |
1336 | static void tag_insert PARAMS ((char *name, symbolS * symbolP)); | |
1337 | char *s_get_name PARAMS ((symbolS * s)); | |
1338 | ||
1339 | static int c_line_new PARAMS ((symbolS * symbol, long paddr, | |
1340 | unsigned short line_number, | |
1341 | fragS * frag)); | |
1342 | ||
1343 | ||
1344 | static void w_symbols PARAMS ((bfd * abfd, char *where, | |
1345 | symbolS * symbol_rootP)); | |
1346 | ||
1347 | static void adjust_stab_section PARAMS ((bfd *abfd, segT seg)); | |
1348 | ||
1349 | static struct hash_control *tag_hash; | |
1350 | ||
1351 | static symbolS *def_symbol_in_progress = NULL; | |
1352 | ||
1353 | static void obj_coff_def PARAMS ((int)); | |
1354 | static void obj_coff_dim PARAMS ((int)); | |
1355 | static void obj_coff_endef PARAMS ((int)); | |
1356 | static void obj_coff_line PARAMS ((int)); | |
1357 | static void obj_coff_ln PARAMS ((int)); | |
1358 | static void obj_coff_scl PARAMS ((int)); | |
1359 | static void obj_coff_size PARAMS ((int)); | |
1360 | static void obj_coff_tag PARAMS ((int)); | |
1361 | static void obj_coff_type PARAMS ((int)); | |
1362 | static void obj_coff_val PARAMS ((int)); | |
1363 | static void obj_coff_lcomm PARAMS ((int)); | |
1364 | static void obj_coff_text PARAMS ((int)); | |
1365 | static void obj_coff_data PARAMS ((int)); | |
1366 | static void obj_coff_bss PARAMS ((int)); | |
1367 | static void obj_coff_ident PARAMS ((int)); | |
1368 | void obj_coff_section PARAMS ((int)); | |
1369 | ||
1370 | const pseudo_typeS obj_pseudo_table[] = | |
1371 | { | |
1372 | {"def", obj_coff_def, 0}, | |
1373 | {"dim", obj_coff_dim, 0}, | |
1374 | {"endef", obj_coff_endef, 0}, | |
1375 | {"line", obj_coff_line, 0}, | |
1376 | {"ln", obj_coff_ln, 0}, | |
1377 | {"appline", obj_coff_ln, 1}, | |
1378 | {"scl", obj_coff_scl, 0}, | |
1379 | {"size", obj_coff_size, 0}, | |
1380 | {"tag", obj_coff_tag, 0}, | |
1381 | {"type", obj_coff_type, 0}, | |
1382 | {"val", obj_coff_val, 0}, | |
1383 | {"section", obj_coff_section, 0}, | |
1384 | {"use", obj_coff_section, 0}, | |
1385 | {"sect", obj_coff_section, 0}, | |
1386 | {"text", obj_coff_text, 0}, | |
1387 | {"data", obj_coff_data, 0}, | |
1388 | {"bss", obj_coff_bss, 0}, | |
1389 | {"ident", obj_coff_ident, 0}, | |
1390 | {"ABORT", s_abort, 0}, | |
1391 | {"lcomm", obj_coff_lcomm, 0}, | |
1392 | #ifdef TC_M88K | |
1393 | /* The m88k uses sdef instead of def. */ | |
1394 | {"sdef", obj_coff_def, 0}, | |
1395 | #endif | |
1396 | {NULL} /* end sentinel */ | |
1397 | }; /* obj_pseudo_table */ | |
1398 | \f | |
1399 | /* stack stuff */ | |
1400 | typedef struct | |
1401 | { | |
1402 | unsigned long chunk_size; | |
1403 | unsigned long element_size; | |
1404 | unsigned long size; | |
1405 | char *data; | |
1406 | unsigned long pointer; | |
1407 | } | |
1408 | stack; | |
1409 | ||
1410 | static stack * | |
1411 | stack_init (chunk_size, element_size) | |
1412 | unsigned long chunk_size; | |
1413 | unsigned long element_size; | |
1414 | { | |
1415 | stack *st; | |
1416 | ||
1417 | st = (stack *) malloc (sizeof (stack)); | |
1418 | if (!st) | |
1419 | return 0; | |
1420 | st->data = malloc (chunk_size); | |
1421 | if (!st->data) | |
1422 | { | |
1423 | free (st); | |
1424 | return 0; | |
1425 | } | |
1426 | st->pointer = 0; | |
1427 | st->size = chunk_size; | |
1428 | st->chunk_size = chunk_size; | |
1429 | st->element_size = element_size; | |
1430 | return st; | |
1431 | } | |
1432 | ||
1433 | static void | |
1434 | stack_delete (st) | |
1435 | stack *st; | |
1436 | { | |
1437 | free (st->data); | |
1438 | free (st); | |
1439 | } | |
1440 | ||
1441 | static char * | |
1442 | stack_push (st, element) | |
1443 | stack *st; | |
1444 | char *element; | |
1445 | { | |
1446 | if (st->pointer + st->element_size >= st->size) | |
1447 | { | |
1448 | st->size += st->chunk_size; | |
1449 | if ((st->data = xrealloc (st->data, st->size)) == (char *) 0) | |
1450 | return (char *) 0; | |
1451 | } | |
1452 | memcpy (st->data + st->pointer, element, st->element_size); | |
1453 | st->pointer += st->element_size; | |
1454 | return st->data + st->pointer; | |
1455 | } | |
1456 | ||
1457 | static char * | |
1458 | stack_pop (st) | |
1459 | stack *st; | |
1460 | { | |
1461 | if (st->pointer < st->element_size) | |
1462 | { | |
1463 | st->pointer = 0; | |
1464 | return (char *) 0; | |
1465 | } | |
1466 | st->pointer -= st->element_size; | |
1467 | return st->data + st->pointer; | |
1468 | } | |
1469 | \f | |
1470 | /* | |
1471 | * Maintain a list of the tagnames of the structres. | |
1472 | */ | |
1473 | ||
1474 | static void | |
1475 | tag_init () | |
1476 | { | |
1477 | tag_hash = hash_new (); | |
1478 | } | |
1479 | ||
1480 | static void | |
1481 | tag_insert (name, symbolP) | |
1482 | char *name; | |
1483 | symbolS *symbolP; | |
1484 | { | |
1485 | const char *error_string; | |
1486 | ||
1487 | if ((error_string = hash_jam (tag_hash, name, (char *) symbolP))) | |
1488 | { | |
1489 | as_fatal ("Inserting \"%s\" into structure table failed: %s", | |
1490 | name, error_string); | |
1491 | } | |
1492 | } | |
1493 | ||
1494 | static symbolS * | |
1495 | tag_find_or_make (name) | |
1496 | char *name; | |
1497 | { | |
1498 | symbolS *symbolP; | |
1499 | ||
1500 | if ((symbolP = tag_find (name)) == NULL) | |
1501 | { | |
1502 | symbolP = symbol_new (name, undefined_section, | |
1503 | 0, &zero_address_frag); | |
1504 | ||
1505 | tag_insert (S_GET_NAME (symbolP), symbolP); | |
1506 | } /* not found */ | |
1507 | ||
1508 | return symbolP; | |
1509 | } | |
1510 | ||
1511 | static symbolS * | |
1512 | tag_find (name) | |
1513 | char *name; | |
1514 | { | |
1515 | #ifdef STRIP_UNDERSCORE | |
1516 | if (*name == '_') | |
1517 | name++; | |
1518 | #endif /* STRIP_UNDERSCORE */ | |
1519 | return (symbolS *) hash_find (tag_hash, name); | |
1520 | } | |
1521 | \f | |
1522 | /* Section stuff | |
1523 | ||
1524 | We allow more than just the standard 3 sections, infact, we allow | |
1525 | 10 sections, (though the usual three have to be there). | |
1526 | ||
1527 | This structure performs the mappings for us: | |
1528 | ||
1529 | */ | |
1530 | ||
1531 | #define N_SEG 32 | |
1532 | typedef struct | |
1533 | { | |
1534 | segT seg_t; | |
1535 | int i; | |
1536 | } seg_info_type; | |
1537 | ||
1538 | seg_info_type seg_info_off_by_4[N_SEG] = | |
1539 | { | |
1540 | {SEG_PTV, }, | |
1541 | {SEG_NTV, }, | |
1542 | {SEG_DEBUG, }, | |
1543 | {SEG_ABSOLUTE, }, | |
1544 | {SEG_UNKNOWN, }, | |
1545 | {SEG_E0}, | |
1546 | {SEG_E1}, | |
1547 | {SEG_E2}, | |
1548 | {SEG_E3}, | |
1549 | {SEG_E4}, | |
1550 | {SEG_E5}, | |
1551 | {SEG_E6}, | |
1552 | {SEG_E7}, | |
1553 | {SEG_E8}, | |
1554 | {SEG_E9}, | |
1555 | {(segT)15}, | |
1556 | {(segT)16}, | |
1557 | {(segT)17}, | |
1558 | {(segT)18}, | |
1559 | {(segT)19}, | |
1560 | {(segT)20}, | |
1561 | {(segT)0}, | |
1562 | {(segT)0}, | |
1563 | {(segT)0}, | |
1564 | {SEG_REGISTER} | |
1565 | }; | |
1566 | ||
1567 | ||
1568 | ||
1569 | #define SEG_INFO_FROM_SECTION_NUMBER(x) (seg_info_off_by_4[(x)+4]) | |
1570 | #define SEG_INFO_FROM_SEG_NUMBER(x) (seg_info_off_by_4[(x)]) | |
1571 | ||
1572 | ||
1573 | static relax_addressT | |
1574 | relax_align (address, alignment) | |
1575 | relax_addressT address; | |
1576 | long alignment; | |
1577 | { | |
1578 | relax_addressT mask; | |
1579 | relax_addressT new_address; | |
1580 | ||
1581 | mask = ~((~0) << alignment); | |
1582 | new_address = (address + mask) & (~mask); | |
1583 | return (new_address - address); | |
1584 | } /* relax_align() */ | |
1585 | ||
1586 | ||
1587 | segT | |
1588 | s_get_segment (x) | |
1589 | symbolS * x; | |
1590 | { | |
1591 | return SEG_INFO_FROM_SECTION_NUMBER (x->sy_symbol.ost_entry.n_scnum).seg_t; | |
1592 | } | |
1593 | ||
1594 | ||
1595 | ||
1596 | /* calculate the size of the frag chain and fill in the section header | |
1597 | to contain all of it, also fill in the addr of the sections */ | |
1598 | static unsigned int | |
1599 | size_section (abfd, idx) | |
1600 | bfd * abfd; | |
1601 | unsigned int idx; | |
1602 | { | |
1603 | ||
1604 | unsigned int size = 0; | |
1605 | fragS *frag = segment_info[idx].frchainP->frch_root; | |
1606 | while (frag) | |
1607 | { | |
1608 | size = frag->fr_address; | |
1609 | if (frag->fr_address != size) | |
1610 | { | |
1611 | printf ("Out of step\n"); | |
1612 | size = frag->fr_address; | |
1613 | } | |
1614 | ||
1615 | switch (frag->fr_type) | |
1616 | { | |
1617 | #ifdef TC_COFF_SIZEMACHDEP | |
1618 | case rs_machine_dependent: | |
1619 | size += TC_COFF_SIZEMACHDEP (frag); | |
1620 | break; | |
1621 | #endif | |
1622 | case rs_fill: | |
1623 | case rs_org: | |
1624 | size += frag->fr_fix; | |
1625 | size += frag->fr_offset * frag->fr_var; | |
1626 | break; | |
1627 | case rs_align: | |
1628 | size += frag->fr_fix; | |
1629 | size += relax_align (size, frag->fr_offset); | |
1630 | break; | |
1631 | default: | |
1632 | BAD_CASE (frag->fr_type); | |
1633 | break; | |
1634 | } | |
1635 | frag = frag->fr_next; | |
1636 | } | |
1637 | segment_info[idx].scnhdr.s_size = size; | |
1638 | return size; | |
1639 | } | |
1640 | ||
1641 | ||
1642 | static unsigned int | |
1643 | count_entries_in_chain (idx) | |
1644 | unsigned int idx; | |
1645 | { | |
1646 | unsigned int nrelocs; | |
1647 | fixS *fixup_ptr; | |
1648 | ||
1649 | /* Count the relocations */ | |
1650 | fixup_ptr = segment_info[idx].fix_root; | |
1651 | nrelocs = 0; | |
1652 | while (fixup_ptr != (fixS *) NULL) | |
1653 | { | |
1654 | if (TC_COUNT_RELOC (fixup_ptr)) | |
1655 | { | |
1656 | #ifdef TC_A29K | |
1657 | if (fixup_ptr->fx_r_type == RELOC_CONSTH) | |
1658 | nrelocs += 2; | |
1659 | else | |
1660 | nrelocs++; | |
1661 | #else | |
1662 | nrelocs++; | |
1663 | #endif | |
1664 | } | |
1665 | ||
1666 | fixup_ptr = fixup_ptr->fx_next; | |
1667 | } | |
1668 | return nrelocs; | |
1669 | } | |
1670 | ||
1671 | /* output all the relocations for a section */ | |
1672 | void | |
1673 | do_relocs_for (abfd, h, file_cursor) | |
1674 | bfd * abfd; | |
1675 | object_headers * h; | |
1676 | unsigned long *file_cursor; | |
1677 | { | |
1678 | unsigned int nrelocs; | |
1679 | unsigned int idx; | |
1680 | unsigned long reloc_start = *file_cursor; | |
1681 | ||
1682 | for (idx = SEG_E0; idx < SEG_E9; idx++) | |
1683 | { | |
1684 | if (segment_info[idx].scnhdr.s_name[0]) | |
1685 | { | |
1686 | struct external_reloc *ext_ptr; | |
1687 | struct external_reloc *external_reloc_vec; | |
1688 | unsigned int external_reloc_size; | |
1689 | unsigned int base = segment_info[idx].scnhdr.s_paddr; | |
1690 | fixS *fix_ptr = segment_info[idx].fix_root; | |
1691 | nrelocs = count_entries_in_chain (idx); | |
1692 | ||
1693 | if (nrelocs) | |
1694 | /* Bypass this stuff if no relocs. This also incidentally | |
1695 | avoids a SCO bug, where free(malloc(0)) tends to crash. */ | |
1696 | { | |
1697 | external_reloc_size = nrelocs * RELSZ; | |
1698 | external_reloc_vec = | |
1699 | (struct external_reloc *) malloc (external_reloc_size); | |
1700 | ||
1701 | ext_ptr = external_reloc_vec; | |
1702 | ||
1703 | /* Fill in the internal coff style reloc struct from the | |
1704 | internal fix list. */ | |
1705 | while (fix_ptr) | |
1706 | { | |
1707 | symbolS *symbol_ptr; | |
1708 | struct internal_reloc intr; | |
1709 | ||
1710 | /* Only output some of the relocations */ | |
1711 | if (TC_COUNT_RELOC (fix_ptr)) | |
1712 | { | |
1713 | #ifdef TC_RELOC_MANGLE | |
1714 | TC_RELOC_MANGLE (fix_ptr, &intr, base); | |
1715 | ||
1716 | #else | |
1717 | symbolS *dot; | |
1718 | symbol_ptr = fix_ptr->fx_addsy; | |
1719 | ||
1720 | intr.r_type = TC_COFF_FIX2RTYPE (fix_ptr); | |
1721 | intr.r_vaddr = | |
1722 | base + fix_ptr->fx_frag->fr_address + fix_ptr->fx_where; | |
1723 | ||
1724 | #ifdef TC_M88K | |
1725 | intr.r_offset = fix_ptr->fx_offset; | |
1726 | #else | |
1727 | intr.r_offset = 0; | |
1728 | #endif | |
1729 | ||
1730 | /* Turn the segment of the symbol into an offset. */ | |
1731 | if (symbol_ptr) | |
1732 | { | |
1733 | dot = segment_info[S_GET_SEGMENT (symbol_ptr)].dot; | |
1734 | if (dot) | |
1735 | { | |
1736 | intr.r_symndx = dot->sy_number; | |
1737 | } | |
1738 | else | |
1739 | { | |
1740 | intr.r_symndx = symbol_ptr->sy_number; | |
1741 | } | |
1742 | ||
1743 | } | |
1744 | else | |
1745 | { | |
1746 | intr.r_symndx = -1; | |
1747 | } | |
1748 | #endif | |
1749 | ||
1750 | (void) bfd_coff_swap_reloc_out (abfd, &intr, ext_ptr); | |
1751 | ext_ptr++; | |
1752 | ||
1753 | #if defined(TC_A29K) | |
1754 | ||
1755 | /* The 29k has a special kludge for the high 16 bit | |
1756 | reloc. Two relocations are emited, R_IHIHALF, | |
1757 | and R_IHCONST. The second one doesn't contain a | |
1758 | symbol, but uses the value for offset. */ | |
1759 | ||
1760 | if (intr.r_type == R_IHIHALF) | |
1761 | { | |
1762 | /* now emit the second bit */ | |
1763 | intr.r_type = R_IHCONST; | |
1764 | intr.r_symndx = fix_ptr->fx_addnumber; | |
1765 | (void) bfd_coff_swap_reloc_out (abfd, &intr, ext_ptr); | |
1766 | ext_ptr++; | |
1767 | } | |
1768 | #endif | |
1769 | } | |
1770 | ||
1771 | fix_ptr = fix_ptr->fx_next; | |
1772 | } | |
1773 | ||
1774 | /* Write out the reloc table */ | |
1775 | bfd_write ((PTR) external_reloc_vec, 1, external_reloc_size, | |
1776 | abfd); | |
1777 | free (external_reloc_vec); | |
1778 | ||
1779 | /* Fill in section header info. */ | |
1780 | segment_info[idx].scnhdr.s_relptr = *file_cursor; | |
1781 | *file_cursor += external_reloc_size; | |
1782 | segment_info[idx].scnhdr.s_nreloc = nrelocs; | |
1783 | } | |
1784 | else | |
1785 | { | |
1786 | /* No relocs */ | |
1787 | segment_info[idx].scnhdr.s_relptr = 0; | |
1788 | } | |
1789 | } | |
1790 | } | |
1791 | /* Set relocation_size field in file headers */ | |
1792 | H_SET_RELOCATION_SIZE (h, *file_cursor - reloc_start, 0); | |
1793 | } | |
1794 | ||
1795 | ||
1796 | /* run through a frag chain and write out the data to go with it, fill | |
1797 | in the scnhdrs with the info on the file postions | |
1798 | */ | |
1799 | static void | |
1800 | fill_section (abfd, h, file_cursor) | |
1801 | bfd * abfd; | |
1802 | object_headers *h; | |
1803 | unsigned long *file_cursor; | |
1804 | { | |
1805 | ||
1806 | unsigned int i; | |
1807 | unsigned int paddr = 0; | |
1808 | ||
1809 | for (i = SEG_E0; i < SEG_UNKNOWN; i++) | |
1810 | { | |
1811 | unsigned int offset = 0; | |
1812 | ||
1813 | struct internal_scnhdr *s = &(segment_info[i].scnhdr); | |
1814 | ||
1815 | if (s->s_name[0]) | |
1816 | { | |
1817 | fragS *frag = segment_info[i].frchainP->frch_root; | |
1818 | char *buffer; | |
1819 | ||
1820 | if (s->s_size == 0) | |
1821 | s->s_scnptr = 0; | |
1822 | else | |
1823 | { | |
1824 | buffer = xmalloc (s->s_size); | |
1825 | s->s_scnptr = *file_cursor; | |
1826 | } | |
1827 | know (s->s_paddr == paddr); | |
1828 | ||
1829 | if (strcmp (s->s_name, ".text") == 0) | |
1830 | s->s_flags |= STYP_TEXT; | |
1831 | else if (strcmp (s->s_name, ".data") == 0) | |
1832 | s->s_flags |= STYP_DATA; | |
1833 | else if (strcmp (s->s_name, ".bss") == 0) | |
1834 | { | |
1835 | s->s_scnptr = 0; | |
1836 | s->s_flags |= STYP_BSS; | |
1837 | ||
1838 | /* @@ Should make the i386 and a29k coff targets define | |
1839 | COFF_NOLOAD_PROBLEM, and have only one test here. */ | |
1840 | #ifndef TC_I386 | |
1841 | #ifndef TC_A29K | |
1842 | #ifndef COFF_NOLOAD_PROBLEM | |
1843 | /* Apparently the SVR3 linker (and exec syscall) and UDI | |
1844 | mondfe progrem are confused by noload sections. */ | |
1845 | s->s_flags |= STYP_NOLOAD; | |
1846 | #endif | |
1847 | #endif | |
1848 | #endif | |
1849 | } | |
1850 | else if (strcmp (s->s_name, ".lit") == 0) | |
1851 | s->s_flags = STYP_LIT | STYP_TEXT; | |
1852 | else if (strcmp (s->s_name, ".init") == 0) | |
1853 | s->s_flags |= STYP_TEXT; | |
1854 | else if (strcmp (s->s_name, ".fini") == 0) | |
1855 | s->s_flags |= STYP_TEXT; | |
1856 | else if (strncmp (s->s_name, ".comment", 8) == 0) | |
1857 | s->s_flags |= STYP_INFO; | |
1858 | ||
1859 | while (frag) | |
1860 | { | |
1861 | unsigned int fill_size; | |
1862 | switch (frag->fr_type) | |
1863 | { | |
1864 | case rs_machine_dependent: | |
1865 | if (frag->fr_fix) | |
1866 | { | |
1867 | memcpy (buffer + frag->fr_address, | |
1868 | frag->fr_literal, | |
1869 | (unsigned int) frag->fr_fix); | |
1870 | offset += frag->fr_fix; | |
1871 | } | |
1872 | ||
1873 | break; | |
1874 | case rs_fill: | |
1875 | case rs_align: | |
1876 | case rs_org: | |
1877 | if (frag->fr_fix) | |
1878 | { | |
1879 | memcpy (buffer + frag->fr_address, | |
1880 | frag->fr_literal, | |
1881 | (unsigned int) frag->fr_fix); | |
1882 | offset += frag->fr_fix; | |
1883 | } | |
1884 | ||
1885 | fill_size = frag->fr_var; | |
1886 | if (fill_size && frag->fr_offset > 0) | |
1887 | { | |
1888 | unsigned int count; | |
1889 | unsigned int off = frag->fr_fix; | |
1890 | for (count = frag->fr_offset; count; count--) | |
1891 | { | |
1892 | if (fill_size + frag->fr_address + off <= s->s_size) | |
1893 | { | |
1894 | memcpy (buffer + frag->fr_address + off, | |
1895 | frag->fr_literal + frag->fr_fix, | |
1896 | fill_size); | |
1897 | off += fill_size; | |
1898 | offset += fill_size; | |
1899 | } | |
1900 | } | |
1901 | } | |
1902 | break; | |
1903 | case rs_broken_word: | |
1904 | break; | |
1905 | default: | |
1906 | abort (); | |
1907 | } | |
1908 | frag = frag->fr_next; | |
1909 | } | |
1910 | ||
1911 | if (s->s_size != 0) | |
1912 | { | |
1913 | if (s->s_scnptr != 0) | |
1914 | { | |
1915 | bfd_write (buffer, s->s_size, 1, abfd); | |
1916 | *file_cursor += s->s_size; | |
1917 | } | |
1918 | free (buffer); | |
1919 | } | |
1920 | paddr += s->s_size; | |
1921 | } | |
1922 | } | |
1923 | } | |
1924 | ||
1925 | /* Coff file generation & utilities */ | |
1926 | ||
1927 | static void | |
1928 | coff_header_append (abfd, h) | |
1929 | bfd * abfd; | |
1930 | object_headers * h; | |
1931 | { | |
1932 | unsigned int i; | |
1933 | char buffer[1000]; | |
1934 | char buffero[1000]; | |
1935 | ||
1936 | bfd_seek (abfd, 0, 0); | |
1937 | ||
1938 | #ifndef OBJ_COFF_OMIT_OPTIONAL_HEADER | |
1939 | H_SET_MAGIC_NUMBER (h, COFF_MAGIC); | |
1940 | H_SET_VERSION_STAMP (h, 0); | |
1941 | H_SET_ENTRY_POINT (h, 0); | |
1942 | H_SET_TEXT_START (h, segment_info[SEG_E0].frchainP->frch_root->fr_address); | |
1943 | H_SET_DATA_START (h, segment_info[SEG_E1].frchainP->frch_root->fr_address); | |
1944 | H_SET_SIZEOF_OPTIONAL_HEADER (h, bfd_coff_swap_aouthdr_out(abfd, &h->aouthdr, | |
1945 | buffero)); | |
1946 | #else /* defined (OBJ_COFF_OMIT_OPTIONAL_HEADER) */ | |
1947 | H_SET_SIZEOF_OPTIONAL_HEADER (h, 0); | |
1948 | #endif /* defined (OBJ_COFF_OMIT_OPTIONAL_HEADER) */ | |
1949 | ||
1950 | i = bfd_coff_swap_filehdr_out (abfd, &h->filehdr, buffer); | |
1951 | ||
1952 | bfd_write (buffer, i, 1, abfd); | |
1953 | bfd_write (buffero, H_GET_SIZEOF_OPTIONAL_HEADER (h), 1, abfd); | |
1954 | ||
1955 | for (i = SEG_E0; i < SEG_E9; i++) | |
1956 | { | |
1957 | if (segment_info[i].scnhdr.s_name[0]) | |
1958 | { | |
1959 | unsigned int size = | |
1960 | bfd_coff_swap_scnhdr_out (abfd, | |
1961 | &(segment_info[i].scnhdr), | |
1962 | buffer); | |
1963 | bfd_write (buffer, size, 1, abfd); | |
1964 | } | |
1965 | } | |
1966 | } | |
1967 | ||
1968 | ||
1969 | char * | |
1970 | symbol_to_chars (abfd, where, symbolP) | |
1971 | bfd * abfd; | |
1972 | char *where; | |
1973 | symbolS * symbolP; | |
1974 | { | |
1975 | unsigned int numaux = symbolP->sy_symbol.ost_entry.n_numaux; | |
1976 | unsigned int i; | |
1977 | valueT val; | |
1978 | ||
1979 | /* Turn any symbols with register attributes into abs symbols */ | |
1980 | if (S_GET_SEGMENT (symbolP) == reg_section) | |
1981 | { | |
1982 | S_SET_SEGMENT (symbolP, absolute_section); | |
1983 | } | |
1984 | /* At the same time, relocate all symbols to their output value */ | |
1985 | ||
1986 | val = (segment_info[S_GET_SEGMENT (symbolP)].scnhdr.s_paddr | |
1987 | + S_GET_VALUE (symbolP)); | |
1988 | ||
1989 | S_SET_VALUE (symbolP, val); | |
1990 | ||
1991 | symbolP->sy_symbol.ost_entry.n_value = val; | |
1992 | ||
1993 | where += bfd_coff_swap_sym_out (abfd, &symbolP->sy_symbol.ost_entry, | |
1994 | where); | |
1995 | ||
1996 | for (i = 0; i < numaux; i++) | |
1997 | { | |
1998 | where += bfd_coff_swap_aux_out (abfd, | |
1999 | &symbolP->sy_symbol.ost_auxent[i], | |
2000 | S_GET_DATA_TYPE (symbolP), | |
2001 | S_GET_STORAGE_CLASS (symbolP), | |
2002 | i, numaux, where); | |
2003 | } | |
2004 | return where; | |
2005 | ||
2006 | } | |
2007 | ||
2008 | void | |
2009 | obj_symbol_new_hook (symbolP) | |
2010 | symbolS *symbolP; | |
2011 | { | |
2012 | char underscore = 0; /* Symbol has leading _ */ | |
2013 | ||
2014 | /* Effective symbol */ | |
2015 | /* Store the pointer in the offset. */ | |
2016 | S_SET_ZEROES (symbolP, 0L); | |
2017 | S_SET_DATA_TYPE (symbolP, T_NULL); | |
2018 | S_SET_STORAGE_CLASS (symbolP, 0); | |
2019 | S_SET_NUMBER_AUXILIARY (symbolP, 0); | |
2020 | /* Additional information */ | |
2021 | symbolP->sy_symbol.ost_flags = 0; | |
2022 | /* Auxiliary entries */ | |
2023 | memset ((char *) &symbolP->sy_symbol.ost_auxent[0], 0, AUXESZ); | |
2024 | ||
2025 | if (S_IS_STRING (symbolP)) | |
2026 | SF_SET_STRING (symbolP); | |
2027 | if (!underscore && S_IS_LOCAL (symbolP)) | |
2028 | SF_SET_LOCAL (symbolP); | |
2029 | } | |
2030 | ||
2031 | /* | |
2032 | * Handle .ln directives. | |
2033 | */ | |
2034 | ||
2035 | static void | |
2036 | obj_coff_ln (appline) | |
2037 | int appline; | |
2038 | { | |
2039 | int l; | |
2040 | ||
2041 | if (! appline && def_symbol_in_progress != NULL) | |
2042 | { | |
2043 | as_warn (".ln pseudo-op inside .def/.endef: ignored."); | |
2044 | demand_empty_rest_of_line (); | |
2045 | return; | |
2046 | } /* wrong context */ | |
2047 | ||
2048 | c_line_new (0, | |
2049 | obstack_next_free (&frags) - frag_now->fr_literal, | |
2050 | l = get_absolute_expression (), | |
2051 | frag_now); | |
2052 | #ifndef NO_LISTING | |
2053 | { | |
2054 | extern int listing; | |
2055 | ||
2056 | if (listing) | |
2057 | { | |
2058 | if (! appline) | |
2059 | l += line_base - 1; | |
2060 | listing_source_line ((unsigned int) l); | |
2061 | } | |
2062 | ||
2063 | } | |
2064 | #endif | |
2065 | demand_empty_rest_of_line (); | |
2066 | } | |
2067 | ||
2068 | /* | |
2069 | * def() | |
2070 | * | |
2071 | * Handle .def directives. | |
2072 | * | |
2073 | * One might ask : why can't we symbol_new if the symbol does not | |
2074 | * already exist and fill it with debug information. Because of | |
2075 | * the C_EFCN special symbol. It would clobber the value of the | |
2076 | * function symbol before we have a chance to notice that it is | |
2077 | * a C_EFCN. And a second reason is that the code is more clear this | |
2078 | * way. (at least I think it is :-). | |
2079 | * | |
2080 | */ | |
2081 | ||
2082 | #define SKIP_SEMI_COLON() while (*input_line_pointer++ != ';') | |
2083 | #define SKIP_WHITESPACES() while (*input_line_pointer == ' ' || \ | |
2084 | *input_line_pointer == '\t') \ | |
2085 | input_line_pointer++; | |
2086 | ||
2087 | static void | |
2088 | obj_coff_def (what) | |
2089 | int what; | |
2090 | { | |
2091 | char name_end; /* Char after the end of name */ | |
2092 | char *symbol_name; /* Name of the debug symbol */ | |
2093 | char *symbol_name_copy; /* Temporary copy of the name */ | |
2094 | unsigned int symbol_name_length; | |
2095 | ||
2096 | if (def_symbol_in_progress != NULL) | |
2097 | { | |
2098 | as_warn (".def pseudo-op used inside of .def/.endef: ignored."); | |
2099 | demand_empty_rest_of_line (); | |
2100 | return; | |
2101 | } /* if not inside .def/.endef */ | |
2102 | ||
2103 | SKIP_WHITESPACES (); | |
2104 | ||
2105 | def_symbol_in_progress = (symbolS *) obstack_alloc (¬es, sizeof (*def_symbol_in_progress)); | |
2106 | memset (def_symbol_in_progress, 0, sizeof (*def_symbol_in_progress)); | |
2107 | ||
2108 | symbol_name = input_line_pointer; | |
2109 | name_end = get_symbol_end (); | |
2110 | symbol_name_length = strlen (symbol_name); | |
2111 | symbol_name_copy = xmalloc (symbol_name_length + 1); | |
2112 | strcpy (symbol_name_copy, symbol_name); | |
2113 | ||
2114 | /* Initialize the new symbol */ | |
2115 | #ifdef STRIP_UNDERSCORE | |
2116 | S_SET_NAME (def_symbol_in_progress, (*symbol_name_copy == '_' | |
2117 | ? symbol_name_copy + 1 | |
2118 | : symbol_name_copy)); | |
2119 | #else /* STRIP_UNDERSCORE */ | |
2120 | S_SET_NAME (def_symbol_in_progress, symbol_name_copy); | |
2121 | #endif /* STRIP_UNDERSCORE */ | |
2122 | /* free(symbol_name_copy); */ | |
2123 | def_symbol_in_progress->sy_name_offset = (unsigned long) ~0; | |
2124 | def_symbol_in_progress->sy_number = ~0; | |
2125 | def_symbol_in_progress->sy_frag = &zero_address_frag; | |
2126 | S_SET_VALUE (def_symbol_in_progress, 0); | |
2127 | ||
2128 | if (S_IS_STRING (def_symbol_in_progress)) | |
2129 | SF_SET_STRING (def_symbol_in_progress); | |
2130 | ||
2131 | *input_line_pointer = name_end; | |
2132 | ||
2133 | demand_empty_rest_of_line (); | |
2134 | } | |
2135 | ||
2136 | unsigned int dim_index; | |
2137 | ||
2138 | ||
2139 | static void | |
2140 | obj_coff_endef (ignore) | |
2141 | int ignore; | |
2142 | { | |
2143 | symbolS *symbolP = 0; | |
2144 | /* DIM BUG FIX sac@cygnus.com */ | |
2145 | dim_index = 0; | |
2146 | if (def_symbol_in_progress == NULL) | |
2147 | { | |
2148 | as_warn (".endef pseudo-op used outside of .def/.endef: ignored."); | |
2149 | demand_empty_rest_of_line (); | |
2150 | return; | |
2151 | } /* if not inside .def/.endef */ | |
2152 | ||
2153 | /* Set the section number according to storage class. */ | |
2154 | switch (S_GET_STORAGE_CLASS (def_symbol_in_progress)) | |
2155 | { | |
2156 | case C_STRTAG: | |
2157 | case C_ENTAG: | |
2158 | case C_UNTAG: | |
2159 | SF_SET_TAG (def_symbol_in_progress); | |
2160 | /* intentional fallthrough */ | |
2161 | case C_FILE: | |
2162 | case C_TPDEF: | |
2163 | SF_SET_DEBUG (def_symbol_in_progress); | |
2164 | S_SET_SEGMENT (def_symbol_in_progress, SEG_DEBUG); | |
2165 | break; | |
2166 | ||
2167 | case C_EFCN: | |
2168 | SF_SET_LOCAL (def_symbol_in_progress); /* Do not emit this symbol. */ | |
2169 | /* intentional fallthrough */ | |
2170 | case C_BLOCK: | |
2171 | SF_SET_PROCESS (def_symbol_in_progress); /* Will need processing before writing */ | |
2172 | /* intentional fallthrough */ | |
2173 | case C_FCN: | |
2174 | S_SET_SEGMENT (def_symbol_in_progress, SEG_E0); | |
2175 | ||
2176 | if (strcmp (S_GET_NAME (def_symbol_in_progress), ".bf") == 0) | |
2177 | { /* .bf */ | |
2178 | if (function_lineoff < 0) | |
2179 | { | |
2180 | fprintf (stderr, "`.bf' symbol without preceding function\n"); | |
2181 | } /* missing function symbol */ | |
2182 | SA_GET_SYM_LNNOPTR (last_line_symbol) = function_lineoff; | |
2183 | ||
2184 | SF_SET_PROCESS (last_line_symbol); | |
2185 | function_lineoff = -1; | |
2186 | } | |
2187 | /* Value is always set to . */ | |
2188 | def_symbol_in_progress->sy_frag = frag_now; | |
2189 | S_SET_VALUE (def_symbol_in_progress, (valueT) frag_now_fix ()); | |
2190 | break; | |
2191 | ||
2192 | #ifdef C_AUTOARG | |
2193 | case C_AUTOARG: | |
2194 | #endif /* C_AUTOARG */ | |
2195 | case C_AUTO: | |
2196 | case C_REG: | |
2197 | case C_MOS: | |
2198 | case C_MOE: | |
2199 | case C_MOU: | |
2200 | case C_ARG: | |
2201 | case C_REGPARM: | |
2202 | case C_FIELD: | |
2203 | case C_EOS: | |
2204 | SF_SET_DEBUG (def_symbol_in_progress); | |
2205 | S_SET_SEGMENT (def_symbol_in_progress, absolute_section); | |
2206 | break; | |
2207 | ||
2208 | case C_EXT: | |
2209 | case C_STAT: | |
2210 | case C_LABEL: | |
2211 | /* Valid but set somewhere else (s_comm, s_lcomm, colon) */ | |
2212 | break; | |
2213 | ||
2214 | case C_USTATIC: | |
2215 | case C_EXTDEF: | |
2216 | case C_ULABEL: | |
2217 | as_warn ("unexpected storage class %d", S_GET_STORAGE_CLASS (def_symbol_in_progress)); | |
2218 | break; | |
2219 | } /* switch on storage class */ | |
2220 | ||
2221 | /* Now that we have built a debug symbol, try to find if we should | |
2222 | merge with an existing symbol or not. If a symbol is C_EFCN or | |
2223 | absolute_section or untagged SEG_DEBUG it never merges. We also | |
2224 | don't merge labels, which are in a different namespace, nor | |
2225 | symbols which have not yet been defined since they are typically | |
2226 | unique, nor do we merge tags with non-tags. */ | |
2227 | ||
2228 | /* Two cases for functions. Either debug followed by definition or | |
2229 | definition followed by debug. For definition first, we will | |
2230 | merge the debug symbol into the definition. For debug first, the | |
2231 | lineno entry MUST point to the definition function or else it | |
2232 | will point off into space when crawl_symbols() merges the debug | |
2233 | symbol into the real symbol. Therefor, let's presume the debug | |
2234 | symbol is a real function reference. */ | |
2235 | ||
2236 | /* FIXME-SOON If for some reason the definition label/symbol is | |
2237 | never seen, this will probably leave an undefined symbol at link | |
2238 | time. */ | |
2239 | ||
2240 | if (S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_EFCN | |
2241 | || S_GET_STORAGE_CLASS (def_symbol_in_progress) == C_LABEL | |
2242 | || (S_GET_SEGMENT (def_symbol_in_progress) == SEG_DEBUG | |
2243 | && !SF_GET_TAG (def_symbol_in_progress)) | |
2244 | || S_GET_SEGMENT (def_symbol_in_progress) == absolute_section | |
2245 | || def_symbol_in_progress->sy_value.X_op != O_constant | |
2246 | || (symbolP = symbol_find_base (S_GET_NAME (def_symbol_in_progress), DO_NOT_STRIP)) == NULL | |
2247 | || (SF_GET_TAG (def_symbol_in_progress) != SF_GET_TAG (symbolP))) | |
2248 | { | |
2249 | symbol_append (def_symbol_in_progress, symbol_lastP, &symbol_rootP, | |
2250 | &symbol_lastP); | |
2251 | } | |
2252 | else | |
2253 | { | |
2254 | /* This symbol already exists, merge the newly created symbol | |
2255 | into the old one. This is not mandatory. The linker can | |
2256 | handle duplicate symbols correctly. But I guess that it save | |
2257 | a *lot* of space if the assembly file defines a lot of | |
2258 | symbols. [loic] */ | |
2259 | ||
2260 | /* The debug entry (def_symbol_in_progress) is merged into the | |
2261 | previous definition. */ | |
2262 | ||
2263 | c_symbol_merge (def_symbol_in_progress, symbolP); | |
2264 | /* FIXME-SOON Should *def_symbol_in_progress be free'd? xoxorich. */ | |
2265 | def_symbol_in_progress = symbolP; | |
2266 | ||
2267 | if (SF_GET_FUNCTION (def_symbol_in_progress) | |
2268 | || SF_GET_TAG (def_symbol_in_progress)) | |
2269 | { | |
2270 | /* For functions, and tags, the symbol *must* be where the | |
2271 | debug symbol appears. Move the existing symbol to the | |
2272 | current place. */ | |
2273 | /* If it already is at the end of the symbol list, do nothing */ | |
2274 | if (def_symbol_in_progress != symbol_lastP) | |
2275 | { | |
2276 | symbol_remove (def_symbol_in_progress, &symbol_rootP, | |
2277 | &symbol_lastP); | |
2278 | symbol_append (def_symbol_in_progress, symbol_lastP, | |
2279 | &symbol_rootP, &symbol_lastP); | |
2280 | } /* if not already in place */ | |
2281 | } /* if function */ | |
2282 | } /* normal or mergable */ | |
2283 | ||
2284 | if (SF_GET_TAG (def_symbol_in_progress) | |
2285 | && symbol_find_base (S_GET_NAME (def_symbol_in_progress), DO_NOT_STRIP) == NULL) | |
2286 | { | |
2287 | tag_insert (S_GET_NAME (def_symbol_in_progress), def_symbol_in_progress); | |
2288 | } | |
2289 | ||
2290 | if (SF_GET_FUNCTION (def_symbol_in_progress)) | |
2291 | { | |
2292 | know (sizeof (def_symbol_in_progress) <= sizeof (long)); | |
2293 | function_lineoff | |
2294 | = c_line_new (def_symbol_in_progress, 0, 0, &zero_address_frag); | |
2295 | ||
2296 | SF_SET_PROCESS (def_symbol_in_progress); | |
2297 | ||
2298 | if (symbolP == NULL) | |
2299 | { | |
2300 | /* That is, if this is the first time we've seen the | |
2301 | function... */ | |
2302 | symbol_table_insert (def_symbol_in_progress); | |
2303 | } /* definition follows debug */ | |
2304 | } /* Create the line number entry pointing to the function being defined */ | |
2305 | ||
2306 | def_symbol_in_progress = NULL; | |
2307 | demand_empty_rest_of_line (); | |
2308 | } | |
2309 | ||
2310 | static void | |
2311 | obj_coff_dim (ignore) | |
2312 | int ignore; | |
2313 | { | |
2314 | int dim_index; | |
2315 | ||
2316 | if (def_symbol_in_progress == NULL) | |
2317 | { | |
2318 | as_warn (".dim pseudo-op used outside of .def/.endef: ignored."); | |
2319 | demand_empty_rest_of_line (); | |
2320 | return; | |
2321 | } /* if not inside .def/.endef */ | |
2322 | ||
2323 | S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); | |
2324 | ||
2325 | for (dim_index = 0; dim_index < DIMNUM; dim_index++) | |
2326 | { | |
2327 | SKIP_WHITESPACES (); | |
2328 | SA_SET_SYM_DIMEN (def_symbol_in_progress, dim_index, | |
2329 | get_absolute_expression ()); | |
2330 | ||
2331 | switch (*input_line_pointer) | |
2332 | { | |
2333 | case ',': | |
2334 | input_line_pointer++; | |
2335 | break; | |
2336 | ||
2337 | default: | |
2338 | as_warn ("badly formed .dim directive ignored"); | |
2339 | /* intentional fallthrough */ | |
2340 | case '\n': | |
2341 | case ';': | |
2342 | dim_index = DIMNUM; | |
2343 | break; | |
2344 | } | |
2345 | } | |
2346 | ||
2347 | demand_empty_rest_of_line (); | |
2348 | } | |
2349 | ||
2350 | static void | |
2351 | obj_coff_line (ignore) | |
2352 | int ignore; | |
2353 | { | |
2354 | int this_base; | |
2355 | ||
2356 | if (def_symbol_in_progress == NULL) | |
2357 | { | |
2358 | obj_coff_ln (0); | |
2359 | return; | |
2360 | } | |
2361 | ||
2362 | this_base = get_absolute_expression (); | |
2363 | if (this_base > line_base) | |
2364 | { | |
2365 | line_base = this_base; | |
2366 | } | |
2367 | ||
2368 | #ifndef NO_LISTING | |
2369 | { | |
2370 | extern int listing; | |
2371 | if (listing && 0) | |
2372 | { | |
2373 | listing_source_line ((unsigned int) line_base); | |
2374 | } | |
2375 | } | |
2376 | #endif | |
2377 | S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); | |
2378 | SA_SET_SYM_LNNO (def_symbol_in_progress, this_base); | |
2379 | ||
2380 | demand_empty_rest_of_line (); | |
2381 | } | |
2382 | ||
2383 | static void | |
2384 | obj_coff_size (ignore) | |
2385 | int ignore; | |
2386 | { | |
2387 | if (def_symbol_in_progress == NULL) | |
2388 | { | |
2389 | as_warn (".size pseudo-op used outside of .def/.endef ignored."); | |
2390 | demand_empty_rest_of_line (); | |
2391 | return; | |
2392 | } /* if not inside .def/.endef */ | |
2393 | ||
2394 | S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); | |
2395 | SA_SET_SYM_SIZE (def_symbol_in_progress, get_absolute_expression ()); | |
2396 | demand_empty_rest_of_line (); | |
2397 | } | |
2398 | ||
2399 | static void | |
2400 | obj_coff_scl (ignore) | |
2401 | int ignore; | |
2402 | { | |
2403 | if (def_symbol_in_progress == NULL) | |
2404 | { | |
2405 | as_warn (".scl pseudo-op used outside of .def/.endef ignored."); | |
2406 | demand_empty_rest_of_line (); | |
2407 | return; | |
2408 | } /* if not inside .def/.endef */ | |
2409 | ||
2410 | S_SET_STORAGE_CLASS (def_symbol_in_progress, get_absolute_expression ()); | |
2411 | demand_empty_rest_of_line (); | |
2412 | } | |
2413 | ||
2414 | static void | |
2415 | obj_coff_tag (ignore) | |
2416 | int ignore; | |
2417 | { | |
2418 | char *symbol_name; | |
2419 | char name_end; | |
2420 | ||
2421 | if (def_symbol_in_progress == NULL) | |
2422 | { | |
2423 | as_warn (".tag pseudo-op used outside of .def/.endef ignored."); | |
2424 | demand_empty_rest_of_line (); | |
2425 | return; | |
2426 | } | |
2427 | ||
2428 | S_SET_NUMBER_AUXILIARY (def_symbol_in_progress, 1); | |
2429 | symbol_name = input_line_pointer; | |
2430 | name_end = get_symbol_end (); | |
2431 | ||
2432 | /* Assume that the symbol referred to by .tag is always defined. | |
2433 | This was a bad assumption. I've added find_or_make. xoxorich. */ | |
2434 | SA_SET_SYM_TAGNDX (def_symbol_in_progress, | |
2435 | (long) tag_find_or_make (symbol_name)); | |
2436 | if (SA_GET_SYM_TAGNDX (def_symbol_in_progress) == 0L) | |
2437 | { | |
2438 | as_warn ("tag not found for .tag %s", symbol_name); | |
2439 | } /* not defined */ | |
2440 | ||
2441 | SF_SET_TAGGED (def_symbol_in_progress); | |
2442 | *input_line_pointer = name_end; | |
2443 | ||
2444 | demand_empty_rest_of_line (); | |
2445 | } | |
2446 | ||
2447 | static void | |
2448 | obj_coff_type (ignore) | |
2449 | int ignore; | |
2450 | { | |
2451 | if (def_symbol_in_progress == NULL) | |
2452 | { | |
2453 | as_warn (".type pseudo-op used outside of .def/.endef ignored."); | |
2454 | demand_empty_rest_of_line (); | |
2455 | return; | |
2456 | } /* if not inside .def/.endef */ | |
2457 | ||
2458 | S_SET_DATA_TYPE (def_symbol_in_progress, get_absolute_expression ()); | |
2459 | ||
2460 | if (ISFCN (S_GET_DATA_TYPE (def_symbol_in_progress)) && | |
2461 | S_GET_STORAGE_CLASS (def_symbol_in_progress) != C_TPDEF) | |
2462 | { | |
2463 | SF_SET_FUNCTION (def_symbol_in_progress); | |
2464 | } /* is a function */ | |
2465 | ||
2466 | demand_empty_rest_of_line (); | |
2467 | } | |
2468 | ||
2469 | static void | |
2470 | obj_coff_val (ignore) | |
2471 | int ignore; | |
2472 | { | |
2473 | if (def_symbol_in_progress == NULL) | |
2474 | { | |
2475 | as_warn (".val pseudo-op used outside of .def/.endef ignored."); | |
2476 | demand_empty_rest_of_line (); | |
2477 | return; | |
2478 | } /* if not inside .def/.endef */ | |
2479 | ||
2480 | if (is_name_beginner (*input_line_pointer)) | |
2481 | { | |
2482 | char *symbol_name = input_line_pointer; | |
2483 | char name_end = get_symbol_end (); | |
2484 | ||
2485 | if (!strcmp (symbol_name, ".")) | |
2486 | { | |
2487 | def_symbol_in_progress->sy_frag = frag_now; | |
2488 | S_SET_VALUE (def_symbol_in_progress, (valueT) frag_now_fix ()); | |
2489 | /* If the .val is != from the .def (e.g. statics) */ | |
2490 | } | |
2491 | else if (strcmp (S_GET_NAME (def_symbol_in_progress), symbol_name)) | |
2492 | { | |
2493 | def_symbol_in_progress->sy_value.X_op = O_symbol; | |
2494 | def_symbol_in_progress->sy_value.X_add_symbol = | |
2495 | symbol_find_or_make (symbol_name); | |
2496 | def_symbol_in_progress->sy_value.X_op_symbol = NULL; | |
2497 | def_symbol_in_progress->sy_value.X_add_number = 0; | |
2498 | ||
2499 | /* If the segment is undefined when the forward reference is | |
2500 | resolved, then copy the segment id from the forward | |
2501 | symbol. */ | |
2502 | SF_SET_GET_SEGMENT (def_symbol_in_progress); | |
2503 | ||
2504 | /* FIXME: gcc can generate address expressions | |
2505 | here in unusual cases (search for "obscure" | |
2506 | in sdbout.c). We just ignore the offset | |
2507 | here, thus generating incorrect debugging | |
2508 | information. We ignore the rest of the | |
2509 | line just below. */ | |
2510 | } | |
2511 | /* Otherwise, it is the name of a non debug symbol and | |
2512 | its value will be calculated later. */ | |
2513 | *input_line_pointer = name_end; | |
2514 | ||
2515 | /* FIXME: this is to avoid an error message in the | |
2516 | FIXME case mentioned just above. */ | |
2517 | while (! is_end_of_line[(unsigned char) *input_line_pointer]) | |
2518 | ++input_line_pointer; | |
2519 | } | |
2520 | else | |
2521 | { | |
2522 | S_SET_VALUE (def_symbol_in_progress, | |
2523 | (valueT) get_absolute_expression ()); | |
2524 | } /* if symbol based */ | |
2525 | ||
2526 | demand_empty_rest_of_line (); | |
2527 | } | |
2528 | ||
2529 | void | |
2530 | obj_read_begin_hook () | |
2531 | { | |
2532 | /* These had better be the same. Usually 18 bytes. */ | |
2533 | #ifndef BFD_HEADERS | |
2534 | know (sizeof (SYMENT) == sizeof (AUXENT)); | |
2535 | know (SYMESZ == AUXESZ); | |
2536 | #endif | |
2537 | tag_init (); | |
2538 | } | |
2539 | ||
2540 | /* This function runs through the symbol table and puts all the | |
2541 | externals onto another chain */ | |
2542 | ||
2543 | /* The chain of externals */ | |
2544 | symbolS *symbol_externP = NULL; | |
2545 | symbolS *symbol_extern_lastP = NULL; | |
2546 | ||
2547 | stack *block_stack; | |
2548 | symbolS *last_functionP = NULL; | |
2549 | symbolS *last_tagP; | |
2550 | ||
2551 | static unsigned int | |
2552 | yank_symbols () | |
2553 | { | |
2554 | symbolS *symbolP; | |
2555 | unsigned int symbol_number = 0; | |
2556 | unsigned int last_file_symno = 0; | |
2557 | ||
2558 | for (symbolP = symbol_rootP; | |
2559 | symbolP; | |
2560 | symbolP = symbolP ? symbol_next (symbolP) : symbol_rootP) | |
2561 | { | |
2562 | if (!SF_GET_DEBUG (symbolP)) | |
2563 | { | |
2564 | /* Debug symbols do not need all this rubbish */ | |
2565 | symbolS *real_symbolP; | |
2566 | ||
2567 | /* L* and C_EFCN symbols never merge. */ | |
2568 | if (!SF_GET_LOCAL (symbolP) | |
2569 | && S_GET_STORAGE_CLASS (symbolP) != C_LABEL | |
2570 | && symbolP->sy_value.X_op == O_constant | |
2571 | && (real_symbolP = symbol_find_base (S_GET_NAME (symbolP), DO_NOT_STRIP)) | |
2572 | && real_symbolP != symbolP) | |
2573 | { | |
2574 | /* FIXME-SOON: where do dups come from? | |
2575 | Maybe tag references before definitions? xoxorich. */ | |
2576 | /* Move the debug data from the debug symbol to the | |
2577 | real symbol. Do NOT do the oposite (i.e. move from | |
2578 | real symbol to debug symbol and remove real symbol from the | |
2579 | list.) Because some pointers refer to the real symbol | |
2580 | whereas no pointers refer to the debug symbol. */ | |
2581 | c_symbol_merge (symbolP, real_symbolP); | |
2582 | /* Replace the current symbol by the real one */ | |
2583 | /* The symbols will never be the last or the first | |
2584 | because : 1st symbol is .file and 3 last symbols are | |
2585 | .text, .data, .bss */ | |
2586 | symbol_remove (real_symbolP, &symbol_rootP, &symbol_lastP); | |
2587 | symbol_insert (real_symbolP, symbolP, &symbol_rootP, &symbol_lastP); | |
2588 | symbol_remove (symbolP, &symbol_rootP, &symbol_lastP); | |
2589 | symbolP = real_symbolP; | |
2590 | } /* if not local but dup'd */ | |
2591 | ||
def66e24 | 2592 | if (flag_readonly_data_in_text && (S_GET_SEGMENT (symbolP) == SEG_E1)) |
2283f8a0 KR |
2593 | { |
2594 | S_SET_SEGMENT (symbolP, SEG_E0); | |
2595 | } /* push data into text */ | |
2596 | ||
2597 | resolve_symbol_value (symbolP); | |
2598 | ||
2599 | if (S_GET_STORAGE_CLASS (symbolP) == C_NULL) | |
2600 | { | |
2601 | if (!S_IS_DEFINED (symbolP) && !SF_GET_LOCAL (symbolP)) | |
2602 | { | |
2603 | S_SET_EXTERNAL (symbolP); | |
2604 | } | |
2605 | else if (S_GET_SEGMENT (symbolP) == SEG_E0) | |
2606 | { | |
2607 | S_SET_STORAGE_CLASS (symbolP, C_LABEL); | |
2608 | } | |
2609 | else | |
2610 | { | |
2611 | S_SET_STORAGE_CLASS (symbolP, C_STAT); | |
2612 | } | |
2613 | } | |
2614 | ||
2615 | /* Mainly to speed up if not -g */ | |
2616 | if (SF_GET_PROCESS (symbolP)) | |
2617 | { | |
2618 | /* Handle the nested blocks auxiliary info. */ | |
2619 | if (S_GET_STORAGE_CLASS (symbolP) == C_BLOCK) | |
2620 | { | |
2621 | if (!strcmp (S_GET_NAME (symbolP), ".bb")) | |
2622 | stack_push (block_stack, (char *) &symbolP); | |
2623 | else | |
2624 | { /* .eb */ | |
2625 | register symbolS *begin_symbolP; | |
2626 | begin_symbolP = *(symbolS **) stack_pop (block_stack); | |
2627 | if (begin_symbolP == (symbolS *) 0) | |
2628 | as_warn ("mismatched .eb"); | |
2629 | else | |
2630 | SA_SET_SYM_ENDNDX (begin_symbolP, symbol_number + 2); | |
2631 | } | |
2632 | } | |
2633 | /* If we are able to identify the type of a function, and we | |
2634 | are out of a function (last_functionP == 0) then, the | |
2635 | function symbol will be associated with an auxiliary | |
2636 | entry. */ | |
2637 | if (last_functionP == (symbolS *) 0 && | |
2638 | SF_GET_FUNCTION (symbolP)) | |
2639 | { | |
2640 | last_functionP = symbolP; | |
2641 | ||
2642 | if (S_GET_NUMBER_AUXILIARY (symbolP) < 1) | |
2643 | { | |
2644 | S_SET_NUMBER_AUXILIARY (symbolP, 1); | |
2645 | } /* make it at least 1 */ | |
2646 | ||
2647 | /* Clobber possible stale .dim information. */ | |
2648 | #if 0 | |
2649 | /* Iffed out by steve - this fries the lnnoptr info too */ | |
2650 | bzero (symbolP->sy_symbol.ost_auxent[0].x_sym.x_fcnary.x_ary.x_dimen, | |
2651 | sizeof (symbolP->sy_symbol.ost_auxent[0].x_sym.x_fcnary.x_ary.x_dimen)); | |
2652 | #endif | |
2653 | } | |
2654 | /* The C_FCN doesn't need any additional information. I | |
2655 | don't even know if this is needed for sdb. But the | |
2656 | standard assembler generates it, so... */ | |
2657 | if (S_GET_STORAGE_CLASS (symbolP) == C_EFCN) | |
2658 | { | |
2659 | if (last_functionP == (symbolS *) 0) | |
2660 | as_fatal ("C_EFCN symbol out of scope"); | |
2661 | SA_SET_SYM_FSIZE (last_functionP, | |
2662 | (long) (S_GET_VALUE (symbolP) - | |
2663 | S_GET_VALUE (last_functionP))); | |
2664 | SA_SET_SYM_ENDNDX (last_functionP, symbol_number); | |
2665 | last_functionP = (symbolS *) 0; | |
2666 | } | |
2667 | } | |
2668 | } | |
2669 | else if (SF_GET_TAG (symbolP)) | |
2670 | { | |
2671 | /* First descriptor of a structure must point to | |
2672 | the first slot after the structure description. */ | |
2673 | last_tagP = symbolP; | |
2674 | ||
2675 | } | |
2676 | else if (S_GET_STORAGE_CLASS (symbolP) == C_EOS) | |
2677 | { | |
2678 | /* +2 take in account the current symbol */ | |
2679 | SA_SET_SYM_ENDNDX (last_tagP, symbol_number + 2); | |
2680 | } | |
2681 | else if (S_GET_STORAGE_CLASS (symbolP) == C_FILE) | |
2682 | { | |
2683 | if (S_GET_VALUE (symbolP)) | |
2684 | { | |
2685 | S_SET_VALUE (symbolP, last_file_symno); | |
2686 | last_file_symno = symbol_number; | |
2687 | } /* no one points at the first .file symbol */ | |
2688 | } /* if debug or tag or eos or file */ | |
2689 | ||
2690 | /* We must put the external symbols apart. The loader | |
2691 | does not bomb if we do not. But the references in | |
2692 | the endndx field for a .bb symbol are not corrected | |
2693 | if an external symbol is removed between .bb and .be. | |
2694 | I.e in the following case : | |
2695 | [20] .bb endndx = 22 | |
2696 | [21] foo external | |
2697 | [22] .be | |
2698 | ld will move the symbol 21 to the end of the list but | |
2699 | endndx will still be 22 instead of 21. */ | |
2700 | ||
2701 | ||
2702 | if (SF_GET_LOCAL (symbolP)) | |
2703 | { | |
2704 | /* remove C_EFCN and LOCAL (L...) symbols */ | |
2705 | /* next pointer remains valid */ | |
2706 | symbol_remove (symbolP, &symbol_rootP, &symbol_lastP); | |
2707 | ||
2708 | } | |
2709 | else if (!S_IS_DEFINED (symbolP) | |
2710 | && !S_IS_DEBUG (symbolP) | |
2711 | && !SF_GET_STATICS (symbolP) && | |
2712 | S_GET_STORAGE_CLASS (symbolP) == C_EXT) | |
2713 | { /* C_EXT && !SF_GET_FUNCTION(symbolP)) */ | |
2714 | /* if external, Remove from the list */ | |
2715 | symbolS *hold = symbol_previous (symbolP); | |
2716 | ||
2717 | symbol_remove (symbolP, &symbol_rootP, &symbol_lastP); | |
2718 | symbol_clear_list_pointers (symbolP); | |
2719 | symbol_append (symbolP, symbol_extern_lastP, &symbol_externP, &symbol_extern_lastP); | |
2720 | symbolP = hold; | |
2721 | } | |
2722 | else | |
2723 | { | |
2724 | if (SF_GET_STRING (symbolP)) | |
2725 | { | |
2726 | symbolP->sy_name_offset = string_byte_count; | |
2727 | string_byte_count += strlen (S_GET_NAME (symbolP)) + 1; | |
2728 | } | |
2729 | else | |
2730 | { | |
2731 | symbolP->sy_name_offset = 0; | |
2732 | } /* fix "long" names */ | |
2733 | ||
2734 | symbolP->sy_number = symbol_number; | |
2735 | symbol_number += 1 + S_GET_NUMBER_AUXILIARY (symbolP); | |
2736 | } /* if local symbol */ | |
2737 | } /* traverse the symbol list */ | |
2738 | return symbol_number; | |
2739 | ||
2740 | } | |
2741 | ||
2742 | ||
2743 | static unsigned int | |
2744 | glue_symbols () | |
2745 | { | |
2746 | unsigned int symbol_number = 0; | |
2747 | symbolS *symbolP; | |
2748 | for (symbolP = symbol_externP; symbol_externP;) | |
2749 | { | |
2750 | symbolS *tmp = symbol_externP; | |
2751 | ||
2752 | /* append */ | |
2753 | symbol_remove (tmp, &symbol_externP, &symbol_extern_lastP); | |
2754 | symbol_append (tmp, symbol_lastP, &symbol_rootP, &symbol_lastP); | |
2755 | ||
2756 | /* and process */ | |
2757 | if (SF_GET_STRING (tmp)) | |
2758 | { | |
2759 | tmp->sy_name_offset = string_byte_count; | |
2760 | string_byte_count += strlen (S_GET_NAME (tmp)) + 1; | |
2761 | } | |
2762 | else | |
2763 | { | |
2764 | tmp->sy_name_offset = 0; | |
2765 | } /* fix "long" names */ | |
2766 | ||
2767 | tmp->sy_number = symbol_number; | |
2768 | symbol_number += 1 + S_GET_NUMBER_AUXILIARY (tmp); | |
2769 | } /* append the entire extern chain */ | |
2770 | return symbol_number; | |
2771 | ||
2772 | } | |
2773 | ||
2774 | static unsigned int | |
2775 | tie_tags () | |
2776 | { | |
2777 | unsigned int symbol_number = 0; | |
2778 | ||
2779 | symbolS *symbolP; | |
2780 | for (symbolP = symbol_rootP; symbolP; symbolP = | |
2781 | symbol_next (symbolP)) | |
2782 | { | |
2783 | symbolP->sy_number = symbol_number; | |
2784 | ||
2785 | ||
2786 | ||
2787 | if (SF_GET_TAGGED (symbolP)) | |
2788 | { | |
2789 | SA_SET_SYM_TAGNDX | |
2790 | (symbolP, | |
2791 | ((symbolS *) SA_GET_SYM_TAGNDX (symbolP))->sy_number); | |
2792 | } | |
2793 | ||
2794 | symbol_number += 1 + S_GET_NUMBER_AUXILIARY (symbolP); | |
2795 | } | |
2796 | return symbol_number; | |
2797 | ||
2798 | } | |
2799 | ||
2800 | static void | |
2801 | crawl_symbols (h, abfd) | |
2802 | object_headers *h; | |
2803 | bfd * abfd; | |
2804 | { | |
2805 | unsigned int i; | |
2806 | ||
2807 | /* Initialize the stack used to keep track of the matching .bb .be */ | |
2808 | ||
2809 | block_stack = stack_init (512, sizeof (symbolS *)); | |
2810 | ||
2811 | /* The symbol list should be ordered according to the following sequence | |
2812 | * order : | |
2813 | * . .file symbol | |
2814 | * . debug entries for functions | |
2815 | * . fake symbols for the sections, including.text .data and .bss | |
2816 | * . defined symbols | |
2817 | * . undefined symbols | |
2818 | * But this is not mandatory. The only important point is to put the | |
2819 | * undefined symbols at the end of the list. | |
2820 | */ | |
2821 | ||
2822 | if (symbol_rootP == NULL | |
2823 | || S_GET_STORAGE_CLASS (symbol_rootP) != C_FILE) | |
2824 | { | |
2825 | c_dot_file_symbol ("fake"); | |
2826 | } | |
2827 | /* Is there a .file symbol ? If not insert one at the beginning. */ | |
2828 | ||
2829 | /* | |
2830 | * Build up static symbols for the sections, they are filled in later | |
2831 | */ | |
2832 | ||
2833 | ||
2834 | for (i = SEG_E0; i < SEG_E9; i++) | |
2835 | { | |
2836 | if (segment_info[i].scnhdr.s_name[0]) | |
2837 | { | |
2838 | char name[9]; | |
2839 | ||
2840 | strncpy (name, segment_info[i].scnhdr.s_name, 8); | |
2841 | name[8] = '\0'; | |
2842 | segment_info[i].dot = c_section_symbol (name, i - SEG_E0 + 1); | |
2843 | } | |
2844 | } | |
2845 | ||
2846 | ||
2847 | /* Take all the externals out and put them into another chain */ | |
2848 | H_SET_SYMBOL_TABLE_SIZE (h, yank_symbols ()); | |
2849 | /* Take the externals and glue them onto the end.*/ | |
2850 | H_SET_SYMBOL_TABLE_SIZE (h, H_GET_SYMBOL_COUNT (h) + glue_symbols ()); | |
2851 | ||
2852 | H_SET_SYMBOL_TABLE_SIZE (h, tie_tags ()); | |
2853 | know (symbol_externP == NULL); | |
2854 | know (symbol_extern_lastP == NULL); | |
2855 | } | |
2856 | ||
2857 | /* | |
2858 | * Find strings by crawling along symbol table chain. | |
2859 | */ | |
2860 | ||
2861 | void | |
2862 | w_strings (where) | |
2863 | char *where; | |
2864 | { | |
2865 | symbolS *symbolP; | |
2866 | ||
2867 | /* Gotta do md_ byte-ordering stuff for string_byte_count first - KWK */ | |
2868 | md_number_to_chars (where, (valueT) string_byte_count, 4); | |
2869 | where += 4; | |
2870 | for (symbolP = symbol_rootP; | |
2871 | symbolP; | |
2872 | symbolP = symbol_next (symbolP)) | |
2873 | { | |
2874 | unsigned int size; | |
2875 | ||
2876 | if (SF_GET_STRING (symbolP)) | |
2877 | { | |
2878 | size = strlen (S_GET_NAME (symbolP)) + 1; | |
2879 | ||
2880 | memcpy (where, S_GET_NAME (symbolP), size); | |
2881 | where += size; | |
2882 | ||
2883 | } | |
2884 | } | |
2885 | } | |
2886 | ||
2887 | static void | |
2888 | do_linenos_for (abfd, h, file_cursor) | |
2889 | bfd * abfd; | |
2890 | object_headers * h; | |
2891 | unsigned long *file_cursor; | |
2892 | { | |
2893 | unsigned int idx; | |
2894 | unsigned long start = *file_cursor; | |
2895 | ||
2896 | for (idx = SEG_E0; idx < SEG_E9; idx++) | |
2897 | { | |
2898 | segment_info_type *s = segment_info + idx; | |
2899 | ||
2900 | ||
2901 | if (s->scnhdr.s_nlnno != 0) | |
2902 | { | |
2903 | struct lineno_list *line_ptr; | |
2904 | ||
2905 | struct external_lineno *buffer = | |
2906 | (struct external_lineno *) xmalloc (s->scnhdr.s_nlnno * LINESZ); | |
2907 | ||
2908 | struct external_lineno *dst = buffer; | |
2909 | ||
2910 | /* Run through the table we've built and turn it into its external | |
2911 | form, take this chance to remove duplicates */ | |
2912 | ||
2913 | for (line_ptr = s->lineno_list_head; | |
2914 | line_ptr != (struct lineno_list *) NULL; | |
2915 | line_ptr = line_ptr->next) | |
2916 | { | |
2917 | ||
2918 | if (line_ptr->line.l_lnno == 0) | |
2919 | { | |
2920 | /* Turn a pointer to a symbol into the symbols' index */ | |
2921 | line_ptr->line.l_addr.l_symndx = | |
2922 | ((symbolS *) line_ptr->line.l_addr.l_symndx)->sy_number; | |
2923 | } | |
2924 | else | |
2925 | { | |
2926 | line_ptr->line.l_addr.l_paddr += ((struct frag *) (line_ptr->frag))->fr_address; | |
2927 | } | |
2928 | ||
2929 | ||
2930 | (void) bfd_coff_swap_lineno_out (abfd, &(line_ptr->line), dst); | |
2931 | dst++; | |
2932 | ||
2933 | } | |
2934 | ||
2935 | s->scnhdr.s_lnnoptr = *file_cursor; | |
2936 | ||
2937 | bfd_write (buffer, 1, s->scnhdr.s_nlnno * LINESZ, abfd); | |
2938 | free (buffer); | |
2939 | ||
2940 | *file_cursor += s->scnhdr.s_nlnno * LINESZ; | |
2941 | } | |
2942 | } | |
2943 | H_SET_LINENO_SIZE (h, *file_cursor - start); | |
2944 | } | |
2945 | ||
2946 | ||
2947 | /* Now we run through the list of frag chains in a segment and | |
2948 | make all the subsegment frags appear at the end of the | |
2949 | list, as if the seg 0 was extra long */ | |
2950 | ||
2951 | static void | |
2952 | remove_subsegs () | |
2953 | { | |
2954 | unsigned int i; | |
2955 | ||
2956 | for (i = SEG_E0; i < SEG_UNKNOWN; i++) | |
2957 | { | |
2958 | frchainS *head = segment_info[i].frchainP; | |
2959 | fragS dummy; | |
2960 | fragS *prev_frag = &dummy; | |
2961 | ||
2962 | while (head && head->frch_seg == i) | |
2963 | { | |
2964 | prev_frag->fr_next = head->frch_root; | |
2965 | prev_frag = head->frch_last; | |
2966 | head = head->frch_next; | |
2967 | } | |
2968 | prev_frag->fr_next = 0; | |
2969 | } | |
2970 | } | |
2971 | ||
2972 | unsigned long machine; | |
2973 | int coff_flags; | |
2974 | extern void | |
2975 | write_object_file () | |
2976 | { | |
2977 | int i; | |
2978 | char *name; | |
2979 | struct frchain *frchain_ptr; | |
2980 | ||
2981 | object_headers headers; | |
2982 | unsigned long file_cursor; | |
2983 | bfd *abfd; | |
2984 | unsigned int addr; | |
2985 | abfd = bfd_openw (out_file_name, TARGET_FORMAT); | |
2986 | ||
2987 | ||
2988 | if (abfd == 0) | |
2989 | { | |
2990 | as_perror ("FATAL: Can't create %s", out_file_name); | |
2991 | exit (42); | |
2992 | } | |
2993 | bfd_set_format (abfd, bfd_object); | |
2994 | bfd_set_arch_mach (abfd, BFD_ARCH, machine); | |
2995 | ||
2996 | string_byte_count = 4; | |
2997 | ||
2998 | for (frchain_ptr = frchain_root; | |
2999 | frchain_ptr != (struct frchain *) NULL; | |
3000 | frchain_ptr = frchain_ptr->frch_next) | |
3001 | { | |
3002 | /* Run through all the sub-segments and align them up. Also close any | |
3003 | open frags. We tack a .fill onto the end of the frag chain so | |
3004 | that any .align's size can be worked by looking at the next | |
3005 | frag */ | |
3006 | ||
3007 | subseg_set (frchain_ptr->frch_seg, frchain_ptr->frch_subseg); | |
3008 | #ifndef SUB_SEGMENT_ALIGN | |
3009 | #define SUB_SEGMENT_ALIGN(SEG) 1 | |
3010 | #endif | |
3011 | frag_align (SUB_SEGMENT_ALIGN (now_seg), NOP_OPCODE); | |
3012 | frag_wane (frag_now); | |
3013 | frag_now->fr_fix = 0; | |
3014 | know (frag_now->fr_next == NULL); | |
3015 | } | |
3016 | ||
3017 | ||
3018 | remove_subsegs (); | |
3019 | ||
3020 | ||
3021 | for (i = SEG_E0; i < SEG_UNKNOWN; i++) | |
3022 | { | |
3023 | relax_segment (segment_info[i].frchainP->frch_root, i); | |
3024 | } | |
3025 | ||
3026 | H_SET_NUMBER_OF_SECTIONS (&headers, 0); | |
3027 | ||
3028 | /* Find out how big the sections are, and set the addresses. */ | |
3029 | addr = 0; | |
3030 | for (i = SEG_E0; i < SEG_UNKNOWN; i++) | |
3031 | { | |
3032 | long size; | |
3033 | ||
3034 | segment_info[i].scnhdr.s_paddr = addr; | |
3035 | segment_info[i].scnhdr.s_vaddr = addr; | |
3036 | ||
3037 | if (segment_info[i].scnhdr.s_name[0]) | |
3038 | { | |
3039 | H_SET_NUMBER_OF_SECTIONS (&headers, | |
3040 | H_GET_NUMBER_OF_SECTIONS (&headers) + 1); | |
3041 | } | |
3042 | ||
3043 | size = size_section (abfd, (unsigned int) i); | |
3044 | addr += size; | |
3045 | ||
3046 | if (i == SEG_E0) | |
3047 | H_SET_TEXT_SIZE (&headers, size); | |
3048 | else if (i == SEG_E1) | |
3049 | H_SET_DATA_SIZE (&headers, size); | |
3050 | else if (i == SEG_E2) | |
3051 | H_SET_BSS_SIZE (&headers, size); | |
3052 | } | |
3053 | ||
3054 | /* Turn the gas native symbol table shape into a coff symbol table */ | |
3055 | crawl_symbols (&headers, abfd); | |
3056 | ||
3057 | if (string_byte_count == 4) | |
3058 | string_byte_count = 0; | |
3059 | ||
3060 | H_SET_STRING_SIZE (&headers, string_byte_count); | |
3061 | ||
3062 | #if !defined(TC_H8300) && !defined(TC_Z8K) | |
3063 | for (i = SEG_E0; i < SEG_UNKNOWN; i++) | |
3064 | { | |
3065 | fixup_mdeps (segment_info[i].frchainP->frch_root, &headers, i); | |
3066 | fixup_segment (&segment_info[i], i); | |
3067 | } | |
3068 | #endif | |
3069 | ||
3070 | /* Look for ".stab" segments and fill in their initial symbols | |
3071 | correctly. */ | |
3072 | for (i = SEG_E0; i < SEG_UNKNOWN; i++) | |
3073 | { | |
3074 | name = segment_info[i].scnhdr.s_name; | |
3075 | ||
3076 | if (name != NULL | |
3077 | && strncmp (".stab", name, 5) == 0 | |
3078 | && strncmp (".stabstr", name, 8) != 0) | |
3079 | adjust_stab_section (abfd, i); | |
3080 | } | |
3081 | ||
3082 | file_cursor = H_GET_TEXT_FILE_OFFSET (&headers); | |
3083 | ||
3084 | bfd_seek (abfd, (file_ptr) file_cursor, 0); | |
3085 | ||
3086 | /* Plant the data */ | |
3087 | ||
3088 | fill_section (abfd, &headers, &file_cursor); | |
3089 | ||
3090 | do_relocs_for (abfd, &headers, &file_cursor); | |
3091 | ||
3092 | do_linenos_for (abfd, &headers, &file_cursor); | |
3093 | ||
3094 | H_SET_FILE_MAGIC_NUMBER (&headers, COFF_MAGIC); | |
3095 | #ifndef OBJ_COFF_OMIT_TIMESTAMP | |
3096 | H_SET_TIME_STAMP (&headers, (long)time((long*)0)); | |
3097 | #else | |
3098 | H_SET_TIME_STAMP (&headers, 0); | |
3099 | #endif | |
3100 | ||
3101 | #ifdef KEEP_RELOC_INFO | |
3102 | H_SET_FLAGS (&headers, ((H_GET_LINENO_SIZE(&headers) ? 0 : F_LNNO) | | |
3103 | COFF_FLAGS | coff_flags)); | |
3104 | #else | |
3105 | H_SET_FLAGS (&headers, ((H_GET_LINENO_SIZE(&headers) ? 0 : F_LNNO) | | |
3106 | (H_GET_RELOCATION_SIZE(&headers) ? 0 : F_RELFLG) | | |
3107 | COFF_FLAGS | coff_flags)); | |
3108 | #endif | |
3109 | ||
3110 | { | |
3111 | unsigned int symtable_size = H_GET_SYMBOL_TABLE_SIZE (&headers); | |
3112 | char *buffer1 = xmalloc (symtable_size + string_byte_count + 1); | |
3113 | ||
3114 | H_SET_SYMBOL_TABLE_POINTER (&headers, bfd_tell (abfd)); | |
3115 | w_symbols (abfd, buffer1, symbol_rootP); | |
3116 | if (string_byte_count > 0) | |
3117 | w_strings (buffer1 + symtable_size); | |
3118 | bfd_write (buffer1, 1, symtable_size + string_byte_count, abfd); | |
3119 | free (buffer1); | |
3120 | } | |
3121 | ||
3122 | coff_header_append (abfd, &headers); | |
3123 | #if 0 | |
3124 | /* Recent changes to write need this, but where it should | |
3125 | go is up to Ken.. */ | |
3126 | if (bfd_close_all_done (abfd) == false) | |
3127 | as_fatal ("Can't close %s: %s", out_file_name, | |
3128 | bfd_errmsg (bfd_get_error ())); | |
3129 | #else | |
3130 | { | |
3131 | extern bfd *stdoutput; | |
3132 | stdoutput = abfd; | |
3133 | } | |
3134 | #endif | |
3135 | ||
3136 | } | |
3137 | ||
3138 | /* Add a new segment. This is called from subseg_new via the | |
3139 | obj_new_segment macro. */ | |
3140 | ||
3141 | segT | |
3142 | obj_coff_add_segment (name) | |
3143 | const char *name; | |
3144 | { | |
3145 | unsigned int len; | |
3146 | unsigned int i; | |
3147 | ||
3148 | /* Find out if we've already got a section of this name. */ | |
3149 | len = strlen (name); | |
3150 | if (len < sizeof (segment_info[i].scnhdr.s_name)) | |
3151 | ++len; | |
3152 | else | |
3153 | len = sizeof (segment_info[i].scnhdr.s_name); | |
3154 | for (i = SEG_E0; i < SEG_E9 && segment_info[i].scnhdr.s_name[0]; i++) | |
3155 | if (strncmp (segment_info[i].scnhdr.s_name, name, len) == 0 | |
3156 | && (len == sizeof (segment_info[i].scnhdr.s_name) | |
3157 | || segment_info[i].scnhdr.s_name[len] == '\0')) | |
3158 | return (segT) i; | |
3159 | ||
3160 | if (i == SEG_E9) | |
3161 | { | |
3162 | as_bad ("Too many new sections; can't add \"%s\"", name); | |
3163 | return now_seg; | |
3164 | } | |
3165 | ||
3166 | /* Add a new section. */ | |
3167 | strncpy (segment_info[i].scnhdr.s_name, name, | |
3168 | sizeof (segment_info[i].scnhdr.s_name)); | |
3169 | segment_info[i].scnhdr.s_flags = STYP_REG; | |
3170 | ||
3171 | return (segT) i; | |
3172 | } | |
3173 | ||
3174 | /* | |
3175 | * implement the .section pseudo op: | |
3176 | * .section name {, "flags"} | |
3177 | * ^ ^ | |
3178 | * | +--- optional flags: 'b' for bss | |
3179 | * | 'i' for info | |
3180 | * +-- section name 'l' for lib | |
3181 | * 'n' for noload | |
3182 | * 'o' for over | |
3183 | * 'w' for data | |
3184 | * 'd' (apparently m88k for data) | |
3185 | * 'x' for text | |
3186 | * But if the argument is not a quoted string, treat it as a | |
3187 | * subsegment number. | |
3188 | */ | |
3189 | ||
3190 | void | |
3191 | obj_coff_section (ignore) | |
3192 | int ignore; | |
3193 | { | |
3194 | /* Strip out the section name */ | |
3195 | char *section_name; | |
3196 | char *section_name_end; | |
3197 | char c; | |
3198 | int argp; | |
3199 | unsigned int len; | |
3200 | unsigned int exp; | |
3201 | long flags; | |
3202 | ||
3203 | section_name = input_line_pointer; | |
3204 | c = get_symbol_end (); | |
3205 | section_name_end = input_line_pointer; | |
3206 | ||
3207 | len = section_name_end - section_name; | |
3208 | input_line_pointer++; | |
3209 | SKIP_WHITESPACE (); | |
3210 | ||
3211 | argp = 0; | |
3212 | if (c == ',') | |
3213 | argp = 1; | |
3214 | else if (*input_line_pointer == ',') | |
3215 | { | |
3216 | argp = 1; | |
3217 | ++input_line_pointer; | |
3218 | SKIP_WHITESPACE (); | |
3219 | } | |
3220 | ||
3221 | exp = 0; | |
3222 | flags = 0; | |
3223 | if (argp) | |
3224 | { | |
3225 | if (*input_line_pointer != '"') | |
3226 | exp = get_absolute_expression (); | |
3227 | else | |
3228 | { | |
3229 | ++input_line_pointer; | |
3230 | while (*input_line_pointer != '"' | |
3231 | && ! is_end_of_line[(unsigned char) *input_line_pointer]) | |
3232 | { | |
3233 | switch (*input_line_pointer) | |
3234 | { | |
3235 | case 'b': flags |= STYP_BSS; break; | |
3236 | case 'i': flags |= STYP_INFO; break; | |
3237 | case 'l': flags |= STYP_LIB; break; | |
3238 | case 'n': flags |= STYP_NOLOAD; break; | |
3239 | case 'o': flags |= STYP_OVER; break; | |
3240 | case 'd': | |
3241 | case 'w': flags |= STYP_DATA; break; | |
3242 | case 'x': flags |= STYP_TEXT; break; | |
3243 | default: | |
3244 | as_warn("unknown section attribute '%c'", | |
3245 | *input_line_pointer); | |
3246 | break; | |
3247 | } | |
3248 | ++input_line_pointer; | |
3249 | } | |
3250 | if (*input_line_pointer == '"') | |
3251 | ++input_line_pointer; | |
3252 | } | |
3253 | } | |
3254 | ||
3255 | subseg_new (section_name, (subsegT) exp); | |
3256 | ||
3257 | segment_info[now_seg].scnhdr.s_flags |= flags; | |
3258 | ||
3259 | *section_name_end = c; | |
3260 | } | |
3261 | ||
3262 | ||
3263 | static void | |
3264 | obj_coff_text (ignore) | |
3265 | int ignore; | |
3266 | { | |
3267 | subseg_new (".text", get_absolute_expression ()); | |
3268 | } | |
3269 | ||
3270 | ||
3271 | static void | |
3272 | obj_coff_data (ignore) | |
3273 | int ignore; | |
3274 | { | |
def66e24 | 3275 | if (flag_readonly_data_in_text) |
2283f8a0 KR |
3276 | subseg_new (".text", get_absolute_expression () + 1000); |
3277 | else | |
3278 | subseg_new (".data", get_absolute_expression ()); | |
3279 | } | |
3280 | ||
3281 | static void | |
3282 | obj_coff_bss (ignore) | |
3283 | int ignore; | |
3284 | { | |
3285 | if (*input_line_pointer == '\n') /* .bss */ | |
3286 | subseg_new(".bss", get_absolute_expression()); | |
3287 | else /* .bss id,expr */ | |
3288 | obj_coff_lcomm(0); | |
3289 | } | |
3290 | ||
3291 | static void | |
3292 | obj_coff_ident (ignore) | |
3293 | int ignore; | |
3294 | { | |
3295 | segT current_seg = now_seg; /* save current seg */ | |
3296 | subsegT current_subseg = now_subseg; | |
3297 | subseg_new (".comment", 0); /* .comment seg */ | |
3298 | stringer (1); /* read string */ | |
3299 | subseg_set (current_seg, current_subseg); /* restore current seg */ | |
3300 | } | |
3301 | ||
3302 | void | |
3303 | c_symbol_merge (debug, normal) | |
3304 | symbolS *debug; | |
3305 | symbolS *normal; | |
3306 | { | |
3307 | S_SET_DATA_TYPE (normal, S_GET_DATA_TYPE (debug)); | |
3308 | S_SET_STORAGE_CLASS (normal, S_GET_STORAGE_CLASS (debug)); | |
3309 | ||
3310 | if (S_GET_NUMBER_AUXILIARY (debug) > S_GET_NUMBER_AUXILIARY (normal)) | |
3311 | { | |
3312 | S_SET_NUMBER_AUXILIARY (normal, S_GET_NUMBER_AUXILIARY (debug)); | |
3313 | } /* take the most we have */ | |
3314 | ||
3315 | if (S_GET_NUMBER_AUXILIARY (debug) > 0) | |
3316 | { | |
3317 | memcpy ((char *) &normal->sy_symbol.ost_auxent[0], | |
3318 | (char *) &debug->sy_symbol.ost_auxent[0], | |
3319 | (unsigned int) (S_GET_NUMBER_AUXILIARY (debug) * AUXESZ)); | |
3320 | } /* Move all the auxiliary information */ | |
3321 | ||
3322 | /* Move the debug flags. */ | |
3323 | SF_SET_DEBUG_FIELD (normal, SF_GET_DEBUG_FIELD (debug)); | |
3324 | } /* c_symbol_merge() */ | |
3325 | ||
3326 | static int | |
3327 | c_line_new (symbol, paddr, line_number, frag) | |
3328 | symbolS * symbol; | |
3329 | long paddr; | |
3330 | unsigned short line_number; | |
3331 | fragS * frag; | |
3332 | { | |
3333 | struct lineno_list *new_line = | |
3334 | (struct lineno_list *) xmalloc (sizeof (struct lineno_list)); | |
3335 | ||
3336 | segment_info_type *s = segment_info + now_seg; | |
3337 | new_line->line.l_lnno = line_number; | |
3338 | ||
3339 | if (line_number == 0) | |
3340 | { | |
3341 | last_line_symbol = symbol; | |
3342 | new_line->line.l_addr.l_symndx = (long) symbol; | |
3343 | } | |
3344 | else | |
3345 | { | |
3346 | new_line->line.l_addr.l_paddr = paddr; | |
3347 | } | |
3348 | ||
3349 | new_line->frag = (char *) frag; | |
3350 | new_line->next = (struct lineno_list *) NULL; | |
3351 | ||
3352 | ||
3353 | if (s->lineno_list_head == (struct lineno_list *) NULL) | |
3354 | { | |
3355 | s->lineno_list_head = new_line; | |
3356 | } | |
3357 | else | |
3358 | { | |
3359 | s->lineno_list_tail->next = new_line; | |
3360 | } | |
3361 | s->lineno_list_tail = new_line; | |
3362 | return LINESZ * s->scnhdr.s_nlnno++; | |
3363 | } | |
3364 | ||
3365 | void | |
3366 | c_dot_file_symbol (filename) | |
3367 | char *filename; | |
3368 | { | |
3369 | symbolS *symbolP; | |
3370 | ||
3371 | symbolP = symbol_new (".file", | |
3372 | SEG_DEBUG, | |
3373 | 0, | |
3374 | &zero_address_frag); | |
3375 | ||
3376 | S_SET_STORAGE_CLASS (symbolP, C_FILE); | |
3377 | S_SET_NUMBER_AUXILIARY (symbolP, 1); | |
3378 | SA_SET_FILE_FNAME (symbolP, filename); | |
3379 | #ifndef NO_LISTING | |
3380 | { | |
3381 | extern int listing; | |
3382 | if (listing) | |
3383 | { | |
3384 | listing_source_file (filename); | |
3385 | } | |
3386 | ||
3387 | } | |
3388 | ||
3389 | #endif | |
3390 | SF_SET_DEBUG (symbolP); | |
3391 | S_SET_VALUE (symbolP, (valueT) previous_file_symbol); | |
3392 | ||
3393 | previous_file_symbol = symbolP; | |
3394 | ||
3395 | /* Make sure that the symbol is first on the symbol chain */ | |
3396 | if (symbol_rootP != symbolP) | |
3397 | { | |
3398 | if (symbolP == symbol_lastP) | |
3399 | { | |
3400 | symbol_lastP = symbol_lastP->sy_previous; | |
3401 | } /* if it was the last thing on the list */ | |
3402 | ||
3403 | symbol_remove (symbolP, &symbol_rootP, &symbol_lastP); | |
3404 | symbol_insert (symbolP, symbol_rootP, &symbol_rootP, &symbol_lastP); | |
3405 | symbol_rootP = symbolP; | |
3406 | } /* if not first on the list */ | |
3407 | ||
3408 | } /* c_dot_file_symbol() */ | |
3409 | ||
3410 | /* | |
3411 | * Build a 'section static' symbol. | |
3412 | */ | |
3413 | ||
3414 | symbolS * | |
3415 | c_section_symbol (name, idx) | |
3416 | char *name; | |
3417 | int idx; | |
3418 | { | |
3419 | symbolS *symbolP; | |
3420 | ||
3421 | symbolP = symbol_new (name, idx, | |
3422 | 0, | |
3423 | &zero_address_frag); | |
3424 | ||
3425 | S_SET_STORAGE_CLASS (symbolP, C_STAT); | |
3426 | S_SET_NUMBER_AUXILIARY (symbolP, 1); | |
3427 | ||
3428 | SF_SET_STATICS (symbolP); | |
3429 | ||
3430 | return symbolP; | |
3431 | } /* c_section_symbol() */ | |
3432 | ||
3433 | static void | |
3434 | w_symbols (abfd, where, symbol_rootP) | |
3435 | bfd * abfd; | |
3436 | char *where; | |
3437 | symbolS * symbol_rootP; | |
3438 | { | |
3439 | symbolS *symbolP; | |
3440 | unsigned int i; | |
3441 | ||
3442 | /* First fill in those values we have only just worked out */ | |
3443 | for (i = SEG_E0; i < SEG_E9; i++) | |
3444 | { | |
3445 | symbolP = segment_info[i].dot; | |
3446 | if (symbolP) | |
3447 | { | |
3448 | ||
3449 | SA_SET_SCN_SCNLEN (symbolP, segment_info[i].scnhdr.s_size); | |
3450 | SA_SET_SCN_NRELOC (symbolP, segment_info[i].scnhdr.s_nreloc); | |
3451 | SA_SET_SCN_NLINNO (symbolP, segment_info[i].scnhdr.s_nlnno); | |
3452 | ||
3453 | } | |
3454 | } | |
3455 | ||
3456 | /* | |
3457 | * Emit all symbols left in the symbol chain. | |
3458 | */ | |
3459 | for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next (symbolP)) | |
3460 | { | |
3461 | /* Used to save the offset of the name. It is used to point | |
3462 | to the string in memory but must be a file offset. */ | |
3463 | register char *temp; | |
3464 | ||
3465 | tc_coff_symbol_emit_hook (symbolP); | |
3466 | ||
3467 | temp = S_GET_NAME (symbolP); | |
3468 | if (SF_GET_STRING (symbolP)) | |
3469 | { | |
3470 | S_SET_OFFSET (symbolP, symbolP->sy_name_offset); | |
3471 | S_SET_ZEROES (symbolP, 0); | |
3472 | } | |
3473 | else | |
3474 | { | |
3475 | memset (symbolP->sy_symbol.ost_entry.n_name, 0, SYMNMLEN); | |
3476 | strncpy (symbolP->sy_symbol.ost_entry.n_name, temp, SYMNMLEN); | |
3477 | } | |
3478 | where = symbol_to_chars (abfd, where, symbolP); | |
3479 | S_SET_NAME (symbolP, temp); | |
3480 | } | |
3481 | ||
3482 | } /* w_symbols() */ | |
3483 | ||
3484 | static void | |
3485 | obj_coff_lcomm (ignore) | |
3486 | int ignore; | |
3487 | { | |
3488 | s_lcomm(0); | |
3489 | return; | |
3490 | #if 0 | |
3491 | char *name; | |
3492 | char c; | |
3493 | int temp; | |
3494 | char *p; | |
3495 | ||
3496 | symbolS *symbolP; | |
3497 | ||
3498 | name = input_line_pointer; | |
3499 | ||
3500 | c = get_symbol_end (); | |
3501 | p = input_line_pointer; | |
3502 | *p = c; | |
3503 | SKIP_WHITESPACE (); | |
3504 | if (*input_line_pointer != ',') | |
3505 | { | |
3506 | as_bad ("Expected comma after name"); | |
3507 | ignore_rest_of_line (); | |
3508 | return; | |
3509 | } | |
3510 | if (*input_line_pointer == '\n') | |
3511 | { | |
3512 | as_bad ("Missing size expression"); | |
3513 | return; | |
3514 | } | |
3515 | input_line_pointer++; | |
3516 | if ((temp = get_absolute_expression ()) < 0) | |
3517 | { | |
3518 | as_warn ("lcomm length (%d.) <0! Ignored.", temp); | |
3519 | ignore_rest_of_line (); | |
3520 | return; | |
3521 | } | |
3522 | *p = 0; | |
3523 | ||
3524 | symbolP = symbol_find_or_make(name); | |
3525 | ||
3526 | if (S_GET_SEGMENT(symbolP) == SEG_UNKNOWN && | |
3527 | S_GET_VALUE(symbolP) == 0) | |
3528 | { | |
3529 | if (! need_pass_2) | |
3530 | { | |
3531 | char *p; | |
3532 | segT current_seg = now_seg; /* save current seg */ | |
3533 | subsegT current_subseg = now_subseg; | |
3534 | ||
3535 | subseg_set (SEG_E2, 1); | |
3536 | symbolP->sy_frag = frag_now; | |
3537 | p = frag_var(rs_org, 1, 1, (relax_substateT)0, symbolP, | |
3538 | temp, (char *)0); | |
3539 | *p = 0; | |
3540 | subseg_set (current_seg, current_subseg); /* restore current seg */ | |
3541 | S_SET_SEGMENT(symbolP, SEG_E2); | |
3542 | S_SET_STORAGE_CLASS(symbolP, C_STAT); | |
3543 | } | |
3544 | } | |
3545 | else | |
3546 | as_bad("Symbol %s already defined", name); | |
3547 | ||
3548 | demand_empty_rest_of_line(); | |
3549 | #endif | |
3550 | } | |
3551 | ||
3552 | static void | |
3553 | fixup_mdeps (frags, h, this_segment) | |
3554 | fragS * frags; | |
3555 | object_headers * h; | |
3556 | segT this_segment; | |
3557 | { | |
3558 | subseg_change (this_segment, 0); | |
3559 | while (frags) | |
3560 | { | |
3561 | switch (frags->fr_type) | |
3562 | { | |
3563 | case rs_align: | |
3564 | case rs_org: | |
3565 | frags->fr_type = rs_fill; | |
3566 | frags->fr_offset = | |
3567 | (frags->fr_next->fr_address - frags->fr_address - frags->fr_fix); | |
3568 | break; | |
3569 | case rs_machine_dependent: | |
3570 | md_convert_frag (h, frags); | |
3571 | frag_wane (frags); | |
3572 | break; | |
3573 | default: | |
3574 | ; | |
3575 | } | |
3576 | frags = frags->fr_next; | |
3577 | } | |
3578 | } | |
3579 | ||
3580 | #if 1 | |
3581 | static void | |
3582 | fixup_segment (segP, this_segment_type) | |
3583 | segment_info_type * segP; | |
3584 | segT this_segment_type; | |
3585 | { | |
3586 | register fixS * fixP; | |
3587 | register symbolS *add_symbolP; | |
3588 | register symbolS *sub_symbolP; | |
3589 | register long add_number; | |
3590 | register int size; | |
3591 | register char *place; | |
3592 | register long where; | |
3593 | register char pcrel; | |
3594 | register fragS *fragP; | |
3595 | register segT add_symbol_segment = absolute_section; | |
3596 | ||
3597 | ||
3598 | for (fixP = segP->fix_root; fixP; fixP = fixP->fx_next) | |
3599 | { | |
3600 | fragP = fixP->fx_frag; | |
3601 | know (fragP); | |
3602 | where = fixP->fx_where; | |
3603 | place = fragP->fr_literal + where; | |
3604 | size = fixP->fx_size; | |
3605 | add_symbolP = fixP->fx_addsy; | |
3606 | #ifdef TC_I960 | |
3607 | if (fixP->fx_tcbit && TC_S_IS_CALLNAME (add_symbolP)) | |
3608 | { | |
3609 | /* Relocation should be done via the associated 'bal' entry | |
3610 | point symbol. */ | |
3611 | ||
3612 | if (!TC_S_IS_BALNAME (tc_get_bal_of_call (add_symbolP))) | |
3613 | { | |
3614 | as_bad ("No 'bal' entry point for leafproc %s", | |
3615 | S_GET_NAME (add_symbolP)); | |
3616 | continue; | |
3617 | } | |
3618 | fixP->fx_addsy = add_symbolP = tc_get_bal_of_call (add_symbolP); | |
3619 | } | |
3620 | #endif | |
3621 | sub_symbolP = fixP->fx_subsy; | |
3622 | add_number = fixP->fx_offset; | |
3623 | pcrel = fixP->fx_pcrel; | |
3624 | ||
3625 | if (add_symbolP) | |
3626 | { | |
3627 | add_symbol_segment = S_GET_SEGMENT (add_symbolP); | |
3628 | } /* if there is an addend */ | |
3629 | ||
3630 | if (sub_symbolP) | |
3631 | { | |
3632 | if (!add_symbolP) | |
3633 | { | |
3634 | /* Its just -sym */ | |
3635 | if (S_GET_SEGMENT (sub_symbolP) != absolute_section) | |
3636 | { | |
3637 | as_bad ("Negative of non-absolute symbol %s", S_GET_NAME (sub_symbolP)); | |
3638 | } /* not absolute */ | |
3639 | ||
3640 | add_number -= S_GET_VALUE (sub_symbolP); | |
3641 | fixP->fx_subsy = 0; | |
3642 | ||
3643 | /* if sub_symbol is in the same segment that add_symbol | |
3644 | and add_symbol is either in DATA, TEXT, BSS or ABSOLUTE */ | |
3645 | } | |
3646 | else if ((S_GET_SEGMENT (sub_symbolP) == add_symbol_segment) | |
3647 | && (SEG_NORMAL (add_symbol_segment) | |
3648 | || (add_symbol_segment == absolute_section))) | |
3649 | { | |
3650 | /* Difference of 2 symbols from same segment. Can't | |
3651 | make difference of 2 undefineds: 'value' means | |
3652 | something different for N_UNDF. */ | |
3653 | #ifdef TC_I960 | |
3654 | /* Makes no sense to use the difference of 2 arbitrary symbols | |
3655 | as the target of a call instruction. */ | |
3656 | if (fixP->fx_tcbit) | |
3657 | { | |
3658 | as_bad ("callj to difference of 2 symbols"); | |
3659 | } | |
3660 | #endif /* TC_I960 */ | |
3661 | add_number += S_GET_VALUE (add_symbolP) - | |
3662 | S_GET_VALUE (sub_symbolP); | |
3663 | ||
3664 | add_symbolP = NULL; | |
3665 | fixP->fx_addsy = NULL; | |
3666 | fixP->fx_done = 1; | |
3667 | } | |
3668 | else | |
3669 | { | |
3670 | /* Different segments in subtraction. */ | |
3671 | know (!(S_IS_EXTERNAL (sub_symbolP) && (S_GET_SEGMENT (sub_symbolP) == absolute_section))); | |
3672 | ||
3673 | if ((S_GET_SEGMENT (sub_symbolP) == absolute_section)) | |
3674 | { | |
3675 | add_number -= S_GET_VALUE (sub_symbolP); | |
3676 | } | |
3677 | #ifdef DIFF_EXPR_OK | |
3678 | else if (S_GET_SEGMENT (sub_symbolP) == this_segment_type | |
3679 | #if 0 /* Okay for 68k, at least... */ | |
3680 | && !pcrel | |
3681 | #endif | |
3682 | ) | |
3683 | { | |
3684 | /* Make it pc-relative. */ | |
3685 | add_number += (md_pcrel_from (fixP) | |
3686 | - S_GET_VALUE (sub_symbolP)); | |
3687 | pcrel = 1; | |
3688 | fixP->fx_pcrel = 1; | |
3689 | sub_symbolP = 0; | |
3690 | fixP->fx_subsy = 0; | |
3691 | } | |
3692 | #endif | |
3693 | else | |
3694 | { | |
3695 | as_bad ("Can't emit reloc {- %s-seg symbol \"%s\"} @ file address %ld.", | |
3696 | segment_name (S_GET_SEGMENT (sub_symbolP)), | |
3697 | S_GET_NAME (sub_symbolP), | |
3698 | (long) (fragP->fr_address + where)); | |
3699 | } /* if absolute */ | |
3700 | } | |
3701 | } /* if sub_symbolP */ | |
3702 | ||
3703 | if (add_symbolP) | |
3704 | { | |
3705 | if (add_symbol_segment == this_segment_type && pcrel) | |
3706 | { | |
3707 | /* | |
3708 | * This fixup was made when the symbol's segment was | |
3709 | * SEG_UNKNOWN, but it is now in the local segment. | |
3710 | * So we know how to do the address without relocation. | |
3711 | */ | |
3712 | #ifdef TC_I960 | |
3713 | /* reloc_callj() may replace a 'call' with a 'calls' or a 'bal', | |
3714 | * in which cases it modifies *fixP as appropriate. In the case | |
3715 | * of a 'calls', no further work is required, and *fixP has been | |
3716 | * set up to make the rest of the code below a no-op. | |
3717 | */ | |
3718 | reloc_callj (fixP); | |
3719 | #endif /* TC_I960 */ | |
3720 | ||
3721 | add_number += S_GET_VALUE (add_symbolP); | |
3722 | add_number -= md_pcrel_from (fixP); | |
3723 | #if defined (TC_I386) || defined (TE_LYNX) | |
3724 | /* On the 386 we must adjust by the segment | |
3725 | vaddr as well. Ian Taylor. */ | |
3726 | add_number -= segP->scnhdr.s_vaddr; | |
3727 | #endif | |
3728 | pcrel = 0; /* Lie. Don't want further pcrel processing. */ | |
3729 | fixP->fx_addsy = NULL; | |
3730 | fixP->fx_done = 1; | |
3731 | } | |
3732 | else | |
3733 | { | |
3734 | switch (add_symbol_segment) | |
3735 | { | |
3736 | case absolute_section: | |
3737 | #ifdef TC_I960 | |
3738 | reloc_callj (fixP); /* See comment about reloc_callj() above*/ | |
3739 | #endif /* TC_I960 */ | |
3740 | add_number += S_GET_VALUE (add_symbolP); | |
3741 | fixP->fx_addsy = NULL; | |
3742 | fixP->fx_done = 1; | |
3743 | add_symbolP = NULL; | |
3744 | break; | |
3745 | default: | |
3746 | ||
3747 | #ifdef TC_A29K | |
3748 | /* This really should be handled in the linker, but | |
3749 | backward compatibility forbids. */ | |
3750 | add_number += S_GET_VALUE (add_symbolP); | |
3751 | #else | |
3752 | add_number += S_GET_VALUE (add_symbolP) + | |
3753 | segment_info[S_GET_SEGMENT (add_symbolP)].scnhdr.s_paddr; | |
3754 | #endif | |
3755 | break; | |
3756 | ||
3757 | case SEG_UNKNOWN: | |
3758 | #ifdef TC_I960 | |
3759 | if ((int) fixP->fx_bit_fixP == 13) | |
3760 | { | |
3761 | /* This is a COBR instruction. They have only a | |
3762 | * 13-bit displacement and are only to be used | |
3763 | * for local branches: flag as error, don't generate | |
3764 | * relocation. | |
3765 | */ | |
3766 | as_bad ("can't use COBR format with external label"); | |
3767 | fixP->fx_addsy = NULL; | |
3768 | fixP->fx_done = 1; | |
3769 | continue; | |
3770 | } /* COBR */ | |
3771 | #endif /* TC_I960 */ | |
3772 | #if defined (TC_I386) || defined (TE_LYNX) | |
3773 | /* 386 COFF uses a peculiar format in | |
3774 | which the value of a common symbol is | |
3775 | stored in the .text segment (I've | |
3776 | checked this on SVR3.2 and SCO 3.2.2) | |
3777 | Ian Taylor <ian@cygnus.com>. */ | |
3778 | if (S_IS_COMMON (add_symbolP)) | |
3779 | add_number += S_GET_VALUE (add_symbolP); | |
3780 | #endif | |
3781 | break; | |
3782 | ||
3783 | ||
3784 | } /* switch on symbol seg */ | |
3785 | } /* if not in local seg */ | |
3786 | } /* if there was a + symbol */ | |
3787 | ||
3788 | if (pcrel) | |
3789 | { | |
3790 | #ifndef TC_M88K | |
3791 | /* This adjustment is not correct on the m88k, for which the | |
3792 | linker does all the computation. */ | |
3793 | add_number -= md_pcrel_from (fixP); | |
3794 | #endif | |
3795 | if (add_symbolP == 0) | |
3796 | { | |
3797 | fixP->fx_addsy = &abs_symbol; | |
3798 | } /* if there's an add_symbol */ | |
3799 | #if defined (TC_I386) || defined (TE_LYNX) | |
3800 | /* On the 386 we must adjust by the segment vaddr | |
3801 | as well. Ian Taylor. */ | |
3802 | add_number -= segP->scnhdr.s_vaddr; | |
3803 | #endif | |
3804 | } /* if pcrel */ | |
3805 | ||
3806 | if (!fixP->fx_bit_fixP) | |
3807 | { | |
3808 | #ifndef TC_M88K | |
3809 | /* The m88k uses the offset field of the reloc to get around | |
3810 | this problem. */ | |
3811 | if ((size == 1 && | |
3812 | (add_number & ~0xFF) && ((add_number & ~0xFF) != (-1 & ~0xFF))) || | |
3813 | (size == 2 && | |
3814 | (add_number & ~0xFFFF) && ((add_number & ~0xFFFF) != (-1 & ~0xFFFF)))) | |
3815 | { | |
3816 | as_bad ("Value of %ld too large for field of %d bytes at 0x%lx", | |
3817 | (long) add_number, size, | |
3818 | (unsigned long) (fragP->fr_address + where)); | |
3819 | } /* generic error checking */ | |
3820 | #endif | |
3821 | #ifdef WARN_SIGNED_OVERFLOW_WORD | |
3822 | /* Warn if a .word value is too large when treated as | |
3823 | a signed number. We already know it is not too | |
3824 | negative. This is to catch over-large switches | |
3825 | generated by gcc on the 68k. */ | |
def66e24 | 3826 | if (!flag_signed_overflow_ok |
2283f8a0 KR |
3827 | && size == 2 |
3828 | && add_number > 0x7fff) | |
3829 | as_bad ("Signed .word overflow; switch may be too large; %ld at 0x%lx", | |
3830 | (long) add_number, | |
3831 | (unsigned long) (fragP->fr_address + where)); | |
3832 | #endif | |
3833 | } /* not a bit fix */ | |
3834 | /* once this fix has been applied, we don't have to output anything | |
3835 | nothing more need be done -*/ | |
3836 | md_apply_fix (fixP, add_number); | |
3837 | } /* For each fixS in this segment. */ | |
3838 | } /* fixup_segment() */ | |
3839 | ||
3840 | #endif | |
3841 | ||
3842 | /* The first entry in a .stab section is special. */ | |
3843 | ||
3844 | void | |
3845 | obj_coff_init_stab_section (seg) | |
3846 | segT seg; | |
3847 | { | |
3848 | char *file; | |
3849 | char *p; | |
3850 | char *stabstr_name; | |
3851 | unsigned int stroff; | |
3852 | ||
3853 | /* Make space for this first symbol. */ | |
3854 | p = frag_more (12); | |
3855 | /* Zero it out. */ | |
3856 | memset (p, 0, 12); | |
3857 | as_where (&file, (unsigned int *) NULL); | |
3858 | stabstr_name = (char *) alloca (strlen (segment_info[seg].scnhdr.s_name) + 4); | |
3859 | strcpy (stabstr_name, segment_info[seg].scnhdr.s_name); | |
3860 | strcat (stabstr_name, "str"); | |
3861 | stroff = get_stab_string_offset (file, stabstr_name); | |
3862 | know (stroff == 1); | |
3863 | md_number_to_chars (p, stroff, 4); | |
3864 | } | |
3865 | ||
3866 | /* Fill in the counts in the first entry in a .stab section. */ | |
3867 | ||
3868 | static void | |
3869 | adjust_stab_section(abfd, seg) | |
3870 | bfd *abfd; | |
3871 | segT seg; | |
3872 | { | |
3873 | segT stabstrseg = SEG_UNKNOWN; | |
3874 | char *secname, *name, *name2; | |
3875 | char *p = NULL; | |
3876 | int i, strsz = 0, nsyms; | |
3877 | fragS *frag = segment_info[seg].frchainP->frch_root; | |
3878 | ||
3879 | /* Look for the associated string table section. */ | |
3880 | ||
3881 | secname = segment_info[seg].scnhdr.s_name; | |
3882 | name = (char *) alloca (strlen (secname) + 4); | |
3883 | strcpy (name, secname); | |
3884 | strcat (name, "str"); | |
3885 | ||
3886 | for (i = SEG_E0; i < SEG_UNKNOWN; i++) | |
3887 | { | |
3888 | name2 = segment_info[i].scnhdr.s_name; | |
3889 | if (name2 != NULL && strncmp(name2, name, 8) == 0) | |
3890 | { | |
3891 | stabstrseg = i; | |
3892 | break; | |
3893 | } | |
3894 | } | |
3895 | ||
3896 | /* If we found the section, get its size. */ | |
3897 | if (stabstrseg != SEG_UNKNOWN) | |
3898 | strsz = size_section (abfd, stabstrseg); | |
3899 | ||
3900 | nsyms = size_section (abfd, seg) / 12 - 1; | |
3901 | ||
3902 | /* Look for the first frag of sufficient size for the initial stab | |
3903 | symbol, and collect a pointer to it. */ | |
3904 | while (frag && frag->fr_fix < 12) | |
3905 | frag = frag->fr_next; | |
3906 | assert (frag != 0); | |
3907 | p = frag->fr_literal; | |
3908 | assert (p != 0); | |
3909 | ||
3910 | /* Write in the number of stab symbols and the size of the string | |
3911 | table. */ | |
3912 | bfd_h_put_16 (abfd, (bfd_vma) nsyms, (bfd_byte *) p + 6); | |
3913 | bfd_h_put_32 (abfd, (bfd_vma) strsz, (bfd_byte *) p + 8); | |
3914 | } | |
3915 | ||
3916 | ||
3917 | #endif /* not BFD_ASSEMBLER */ |