Commit | Line | Data |
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252b5132 | 1 | /* symbols.c -symbol table- |
4c63da97 | 2 | Copyright (C) 1987, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 2000 |
252b5132 RH |
3 | Free Software Foundation, Inc. |
4 | ||
5 | This file is part of GAS, the GNU Assembler. | |
6 | ||
7 | GAS is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GAS is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GAS; see the file COPYING. If not, write to the Free | |
19 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
20 | 02111-1307, USA. */ | |
21 | ||
7c743825 | 22 | /* #define DEBUG_SYMS / * to debug symbol list maintenance. */ |
252b5132 RH |
23 | |
24 | #include <ctype.h> | |
25 | ||
26 | #include "as.h" | |
27 | ||
28 | #include "obstack.h" /* For "symbols.h" */ | |
29 | #include "subsegs.h" | |
30 | ||
49309057 ILT |
31 | #include "struc-symbol.h" |
32 | ||
252b5132 RH |
33 | /* This is non-zero if symbols are case sensitive, which is the |
34 | default. */ | |
35 | int symbols_case_sensitive = 1; | |
36 | ||
37 | #ifndef WORKING_DOT_WORD | |
38 | extern int new_broken_words; | |
39 | #endif | |
40 | ||
41 | /* symbol-name => struct symbol pointer */ | |
42 | static struct hash_control *sy_hash; | |
43 | ||
49309057 ILT |
44 | /* Table of local symbols. */ |
45 | static struct hash_control *local_hash; | |
46 | ||
7c743825 | 47 | /* Below are commented in "symbols.h". */ |
252b5132 RH |
48 | symbolS *symbol_rootP; |
49 | symbolS *symbol_lastP; | |
50 | symbolS abs_symbol; | |
51 | ||
52 | #ifdef DEBUG_SYMS | |
53 | #define debug_verify_symchain verify_symbol_chain | |
54 | #else | |
55 | #define debug_verify_symchain(root, last) ((void) 0) | |
56 | #endif | |
57 | ||
aa257fcd NC |
58 | #define DOLLAR_LABEL_CHAR '\001' |
59 | #define LOCAL_LABEL_CHAR '\002' | |
60 | ||
252b5132 RH |
61 | struct obstack notes; |
62 | ||
63 | static void fb_label_init PARAMS ((void)); | |
64 | static long dollar_label_instance PARAMS ((long)); | |
65 | static long fb_label_instance PARAMS ((long)); | |
66 | ||
67 | static void print_binary PARAMS ((FILE *, const char *, expressionS *)); | |
68 | ||
7c743825 | 69 | /* Return a pointer to a new symbol. Die if we can't make a new |
252b5132 RH |
70 | symbol. Fill in the symbol's values. Add symbol to end of symbol |
71 | chain. | |
7c743825 | 72 | |
252b5132 RH |
73 | This function should be called in the general case of creating a |
74 | symbol. However, if the output file symbol table has already been | |
75 | set, and you are certain that this symbol won't be wanted in the | |
76 | output file, you can call symbol_create. */ | |
77 | ||
78 | symbolS * | |
79 | symbol_new (name, segment, valu, frag) | |
80 | const char *name; | |
81 | segT segment; | |
82 | valueT valu; | |
83 | fragS *frag; | |
84 | { | |
85 | symbolS *symbolP = symbol_create (name, segment, valu, frag); | |
86 | ||
7c743825 | 87 | /* Link to end of symbol chain. */ |
252b5132 RH |
88 | #ifdef BFD_ASSEMBLER |
89 | { | |
90 | extern int symbol_table_frozen; | |
91 | if (symbol_table_frozen) | |
92 | abort (); | |
93 | } | |
94 | #endif | |
95 | symbol_append (symbolP, symbol_lastP, &symbol_rootP, &symbol_lastP); | |
96 | ||
97 | return symbolP; | |
98 | } | |
99 | ||
49309057 ILT |
100 | /* Save a symbol name on a permanent obstack, and convert it according |
101 | to the object file format. */ | |
102 | ||
103 | static char * | |
104 | save_symbol_name (name) | |
105 | const char *name; | |
252b5132 RH |
106 | { |
107 | unsigned int name_length; | |
49309057 | 108 | char *ret; |
252b5132 | 109 | |
7c743825 | 110 | name_length = strlen (name) + 1; /* +1 for \0. */ |
252b5132 | 111 | obstack_grow (¬es, name, name_length); |
49309057 ILT |
112 | ret = obstack_finish (¬es); |
113 | ||
252b5132 | 114 | #ifdef STRIP_UNDERSCORE |
49309057 ILT |
115 | if (ret[0] == '_') |
116 | ++ret; | |
252b5132 RH |
117 | #endif |
118 | ||
119 | #ifdef tc_canonicalize_symbol_name | |
49309057 | 120 | ret = tc_canonicalize_symbol_name (ret); |
252b5132 RH |
121 | #endif |
122 | ||
123 | if (! symbols_case_sensitive) | |
124 | { | |
125 | unsigned char *s; | |
126 | ||
49309057 | 127 | for (s = (unsigned char *) ret; *s != '\0'; s++) |
252b5132 RH |
128 | if (islower (*s)) |
129 | *s = toupper (*s); | |
130 | } | |
131 | ||
49309057 ILT |
132 | return ret; |
133 | } | |
134 | ||
135 | symbolS * | |
136 | symbol_create (name, segment, valu, frag) | |
7c743825 KH |
137 | const char *name; /* It is copied, the caller can destroy/modify. */ |
138 | segT segment; /* Segment identifier (SEG_<something>). */ | |
139 | valueT valu; /* Symbol value. */ | |
140 | fragS *frag; /* Associated fragment. */ | |
49309057 ILT |
141 | { |
142 | char *preserved_copy_of_name; | |
143 | symbolS *symbolP; | |
144 | ||
145 | preserved_copy_of_name = save_symbol_name (name); | |
146 | ||
252b5132 RH |
147 | symbolP = (symbolS *) obstack_alloc (¬es, sizeof (symbolS)); |
148 | ||
7c743825 | 149 | /* symbol must be born in some fixed state. This seems as good as any. */ |
252b5132 RH |
150 | memset (symbolP, 0, sizeof (symbolS)); |
151 | ||
152 | #ifdef BFD_ASSEMBLER | |
153 | symbolP->bsym = bfd_make_empty_symbol (stdoutput); | |
154 | if (symbolP->bsym == NULL) | |
155 | as_perror ("%s", "bfd_make_empty_symbol"); | |
156 | symbolP->bsym->udata.p = (PTR) symbolP; | |
157 | #endif | |
158 | S_SET_NAME (symbolP, preserved_copy_of_name); | |
159 | ||
160 | S_SET_SEGMENT (symbolP, segment); | |
161 | S_SET_VALUE (symbolP, valu); | |
162 | symbol_clear_list_pointers (symbolP); | |
163 | ||
164 | symbolP->sy_frag = frag; | |
165 | #ifndef BFD_ASSEMBLER | |
166 | symbolP->sy_number = ~0; | |
167 | symbolP->sy_name_offset = (unsigned int) ~0; | |
168 | #endif | |
169 | ||
170 | obj_symbol_new_hook (symbolP); | |
171 | ||
172 | #ifdef tc_symbol_new_hook | |
173 | tc_symbol_new_hook (symbolP); | |
174 | #endif | |
175 | ||
176 | return symbolP; | |
177 | } | |
178 | \f | |
49309057 ILT |
179 | #ifdef BFD_ASSEMBLER |
180 | ||
181 | /* Local symbol support. If we can get away with it, we keep only a | |
182 | small amount of information for local symbols. */ | |
183 | ||
184 | static struct local_symbol *local_symbol_make PARAMS ((const char *, segT, | |
185 | valueT, fragS *)); | |
186 | static symbolS *local_symbol_convert PARAMS ((struct local_symbol *)); | |
187 | ||
188 | /* Used for statistics. */ | |
189 | ||
190 | static unsigned long local_symbol_count; | |
191 | static unsigned long local_symbol_conversion_count; | |
192 | ||
193 | /* This macro is called with a symbol argument passed by reference. | |
194 | It returns whether this is a local symbol. If necessary, it | |
195 | changes its argument to the real symbol. */ | |
196 | ||
197 | #define LOCAL_SYMBOL_CHECK(s) \ | |
198 | (s->bsym == NULL \ | |
199 | ? (local_symbol_converted_p ((struct local_symbol *) s) \ | |
200 | ? (s = local_symbol_get_real_symbol ((struct local_symbol *) s), \ | |
201 | 0) \ | |
202 | : 1) \ | |
203 | : 0) | |
204 | ||
205 | /* Create a local symbol and insert it into the local hash table. */ | |
206 | ||
207 | static struct local_symbol * | |
208 | local_symbol_make (name, section, offset, frag) | |
209 | const char *name; | |
210 | segT section; | |
211 | valueT offset; | |
212 | fragS *frag; | |
213 | { | |
214 | char *name_copy; | |
215 | struct local_symbol *ret; | |
216 | ||
217 | ++local_symbol_count; | |
218 | ||
219 | name_copy = save_symbol_name (name); | |
220 | ||
221 | ret = (struct local_symbol *) obstack_alloc (¬es, sizeof *ret); | |
222 | ret->lsy_marker = NULL; | |
223 | ret->lsy_name = name_copy; | |
224 | ret->lsy_section = section; | |
225 | local_symbol_set_frag (ret, frag); | |
226 | ret->lsy_offset = offset; | |
227 | ||
228 | hash_jam (local_hash, name_copy, (PTR) ret); | |
229 | ||
230 | return ret; | |
231 | } | |
232 | ||
233 | /* Convert a local symbol into a real symbol. Note that we do not | |
234 | reclaim the space used by the local symbol. */ | |
235 | ||
236 | static symbolS * | |
237 | local_symbol_convert (locsym) | |
238 | struct local_symbol *locsym; | |
239 | { | |
240 | symbolS *ret; | |
241 | ||
242 | assert (locsym->lsy_marker == NULL); | |
243 | if (local_symbol_converted_p (locsym)) | |
244 | return local_symbol_get_real_symbol (locsym); | |
245 | ||
246 | ++local_symbol_conversion_count; | |
247 | ||
248 | ret = symbol_new (locsym->lsy_name, locsym->lsy_section, locsym->lsy_offset, | |
249 | local_symbol_get_frag (locsym)); | |
250 | ||
251 | if (local_symbol_resolved_p (locsym)) | |
252 | ret->sy_resolved = 1; | |
253 | ||
254 | /* Local symbols are always either defined or used. */ | |
255 | ret->sy_used = 1; | |
256 | ||
257 | symbol_table_insert (ret); | |
258 | ||
259 | local_symbol_mark_converted (locsym); | |
260 | local_symbol_set_real_symbol (locsym, ret); | |
261 | ||
262 | hash_jam (local_hash, locsym->lsy_name, NULL); | |
263 | ||
264 | return ret; | |
265 | } | |
266 | ||
267 | #else /* ! BFD_ASSEMBLER */ | |
268 | ||
269 | #define LOCAL_SYMBOL_CHECK(s) 0 | |
270 | #define local_symbol_convert(s) ((symbolS *) s) | |
271 | ||
272 | #endif /* ! BFD_ASSEMBLER */ | |
273 | \f | |
7c743825 KH |
274 | /* We have just seen "<name>:". |
275 | Creates a struct symbol unless it already exists. | |
276 | ||
277 | Gripes if we are redefining a symbol incompatibly (and ignores it). */ | |
252b5132 | 278 | |
252b5132 | 279 | symbolS * |
7c743825 KH |
280 | colon (sym_name) /* Just seen "x:" - rattle symbols & frags. */ |
281 | const char *sym_name; /* Symbol name, as a cannonical string. */ | |
282 | /* We copy this string: OK to alter later. */ | |
252b5132 | 283 | { |
7c743825 | 284 | register symbolS *symbolP; /* Symbol we are working with. */ |
252b5132 RH |
285 | |
286 | /* Sun local labels go out of scope whenever a non-local symbol is | |
287 | defined. */ | |
288 | if (LOCAL_LABELS_DOLLAR) | |
289 | { | |
290 | int local; | |
291 | ||
292 | #ifdef BFD_ASSEMBLER | |
293 | local = bfd_is_local_label_name (stdoutput, sym_name); | |
294 | #else | |
295 | local = LOCAL_LABEL (sym_name); | |
296 | #endif | |
297 | ||
298 | if (! local) | |
299 | dollar_label_clear (); | |
300 | } | |
301 | ||
302 | #ifndef WORKING_DOT_WORD | |
303 | if (new_broken_words) | |
304 | { | |
305 | struct broken_word *a; | |
306 | int possible_bytes; | |
307 | fragS *frag_tmp; | |
308 | char *frag_opcode; | |
309 | ||
310 | extern const int md_short_jump_size; | |
311 | extern const int md_long_jump_size; | |
312 | possible_bytes = (md_short_jump_size | |
313 | + new_broken_words * md_long_jump_size); | |
314 | ||
315 | frag_tmp = frag_now; | |
316 | frag_opcode = frag_var (rs_broken_word, | |
317 | possible_bytes, | |
318 | possible_bytes, | |
319 | (relax_substateT) 0, | |
320 | (symbolS *) broken_words, | |
321 | (offsetT) 0, | |
322 | NULL); | |
323 | ||
7c743825 KH |
324 | /* We want to store the pointer to where to insert the jump |
325 | table in the fr_opcode of the rs_broken_word frag. This | |
326 | requires a little hackery. */ | |
252b5132 RH |
327 | while (frag_tmp |
328 | && (frag_tmp->fr_type != rs_broken_word | |
329 | || frag_tmp->fr_opcode)) | |
330 | frag_tmp = frag_tmp->fr_next; | |
331 | know (frag_tmp); | |
332 | frag_tmp->fr_opcode = frag_opcode; | |
333 | new_broken_words = 0; | |
334 | ||
335 | for (a = broken_words; a && a->dispfrag == 0; a = a->next_broken_word) | |
336 | a->dispfrag = frag_tmp; | |
337 | } | |
338 | #endif /* WORKING_DOT_WORD */ | |
339 | ||
340 | if ((symbolP = symbol_find (sym_name)) != 0) | |
341 | { | |
342 | #ifdef RESOLVE_SYMBOL_REDEFINITION | |
343 | if (RESOLVE_SYMBOL_REDEFINITION (symbolP)) | |
344 | return symbolP; | |
345 | #endif | |
7c743825 | 346 | /* Now check for undefined symbols. */ |
49309057 ILT |
347 | if (LOCAL_SYMBOL_CHECK (symbolP)) |
348 | { | |
a1605869 | 349 | #ifdef BFD_ASSEMBLER |
49309057 ILT |
350 | struct local_symbol *locsym = (struct local_symbol *) symbolP; |
351 | ||
352 | if (locsym->lsy_section != undefined_section | |
353 | && (local_symbol_get_frag (locsym) != frag_now | |
354 | || locsym->lsy_section != now_seg | |
355 | || locsym->lsy_offset != frag_now_fix ())) | |
356 | { | |
357 | as_bad (_("Symbol %s already defined."), sym_name); | |
358 | return symbolP; | |
359 | } | |
360 | ||
361 | locsym->lsy_section = now_seg; | |
362 | local_symbol_set_frag (locsym, frag_now); | |
363 | locsym->lsy_offset = frag_now_fix (); | |
a1605869 | 364 | #endif |
49309057 ILT |
365 | } |
366 | else if (!S_IS_DEFINED (symbolP) || S_IS_COMMON (symbolP)) | |
252b5132 RH |
367 | { |
368 | if (S_GET_VALUE (symbolP) == 0) | |
369 | { | |
370 | symbolP->sy_frag = frag_now; | |
371 | #ifdef OBJ_VMS | |
7c743825 | 372 | S_SET_OTHER (symbolP, const_flag); |
252b5132 RH |
373 | #endif |
374 | S_SET_VALUE (symbolP, (valueT) frag_now_fix ()); | |
375 | S_SET_SEGMENT (symbolP, now_seg); | |
376 | #ifdef N_UNDF | |
377 | know (N_UNDF == 0); | |
7c743825 | 378 | #endif /* if we have one, it better be zero. */ |
252b5132 RH |
379 | |
380 | } | |
381 | else | |
382 | { | |
7c743825 KH |
383 | /* There are still several cases to check: |
384 | ||
385 | A .comm/.lcomm symbol being redefined as initialized | |
386 | data is OK | |
387 | ||
388 | A .comm/.lcomm symbol being redefined with a larger | |
389 | size is also OK | |
390 | ||
391 | This only used to be allowed on VMS gas, but Sun cc | |
392 | on the sparc also depends on it. */ | |
252b5132 RH |
393 | |
394 | if (((!S_IS_DEBUG (symbolP) | |
395 | && (!S_IS_DEFINED (symbolP) || S_IS_COMMON (symbolP)) | |
396 | && S_IS_EXTERNAL (symbolP)) | |
397 | || S_GET_SEGMENT (symbolP) == bss_section) | |
398 | && (now_seg == data_section | |
399 | || now_seg == S_GET_SEGMENT (symbolP))) | |
400 | { | |
7c743825 | 401 | /* Select which of the 2 cases this is. */ |
252b5132 RH |
402 | if (now_seg != data_section) |
403 | { | |
7c743825 KH |
404 | /* New .comm for prev .comm symbol. |
405 | ||
406 | If the new size is larger we just change its | |
407 | value. If the new size is smaller, we ignore | |
408 | this symbol. */ | |
252b5132 RH |
409 | if (S_GET_VALUE (symbolP) |
410 | < ((unsigned) frag_now_fix ())) | |
411 | { | |
412 | S_SET_VALUE (symbolP, (valueT) frag_now_fix ()); | |
413 | } | |
414 | } | |
415 | else | |
416 | { | |
417 | /* It is a .comm/.lcomm being converted to initialized | |
418 | data. */ | |
419 | symbolP->sy_frag = frag_now; | |
420 | #ifdef OBJ_VMS | |
7c743825 | 421 | S_SET_OTHER (symbolP, const_flag); |
252b5132 RH |
422 | #endif |
423 | S_SET_VALUE (symbolP, (valueT) frag_now_fix ()); | |
7c743825 | 424 | S_SET_SEGMENT (symbolP, now_seg); /* Keep N_EXT bit. */ |
252b5132 RH |
425 | } |
426 | } | |
427 | else | |
428 | { | |
4c63da97 AM |
429 | #if (!defined (OBJ_AOUT) && !defined (OBJ_MAYBE_AOUT) \ |
430 | && !defined (OBJ_BOUT) && !defined (OBJ_MAYBE_BOUT)) | |
431 | static const char *od_buf = ""; | |
252b5132 | 432 | #else |
4c63da97 AM |
433 | char od_buf[100]; |
434 | od_buf[0] = '\0'; | |
435 | #ifdef BFD_ASSEMBLER | |
436 | if (OUTPUT_FLAVOR == bfd_target_aout_flavour) | |
437 | #endif | |
438 | sprintf(od_buf, "%d.%d.", | |
439 | S_GET_OTHER (symbolP), | |
440 | S_GET_DESC (symbolP)); | |
441 | #endif | |
d4887adc | 442 | as_bad (_("Symbol \"%s\" is already defined as \"%s\"/%s%ld."), |
252b5132 RH |
443 | sym_name, |
444 | segment_name (S_GET_SEGMENT (symbolP)), | |
4c63da97 | 445 | od_buf, |
252b5132 | 446 | (long) S_GET_VALUE (symbolP)); |
252b5132 | 447 | } |
7c743825 | 448 | } /* if the undefined symbol has no value */ |
252b5132 RH |
449 | } |
450 | else | |
451 | { | |
7c743825 | 452 | /* Don't blow up if the definition is the same. */ |
252b5132 RH |
453 | if (!(frag_now == symbolP->sy_frag |
454 | && S_GET_VALUE (symbolP) == frag_now_fix () | |
455 | && S_GET_SEGMENT (symbolP) == now_seg)) | |
d4887adc NC |
456 | as_bad (_("Symbol %s already defined."), sym_name); |
457 | } | |
252b5132 RH |
458 | |
459 | } | |
49309057 ILT |
460 | #ifdef BFD_ASSEMBLER |
461 | else if (! flag_keep_locals && bfd_is_local_label_name (stdoutput, sym_name)) | |
462 | { | |
463 | symbolP = (symbolS *) local_symbol_make (sym_name, now_seg, | |
464 | (valueT) frag_now_fix (), | |
465 | frag_now); | |
466 | } | |
467 | #endif /* BFD_ASSEMBLER */ | |
252b5132 RH |
468 | else |
469 | { | |
470 | symbolP = symbol_new (sym_name, now_seg, (valueT) frag_now_fix (), | |
471 | frag_now); | |
472 | #ifdef OBJ_VMS | |
473 | S_SET_OTHER (symbolP, const_flag); | |
474 | #endif /* OBJ_VMS */ | |
475 | ||
476 | symbol_table_insert (symbolP); | |
d4887adc | 477 | } |
252b5132 RH |
478 | |
479 | if (mri_common_symbol != NULL) | |
480 | { | |
481 | /* This symbol is actually being defined within an MRI common | |
482 | section. This requires special handling. */ | |
49309057 ILT |
483 | if (LOCAL_SYMBOL_CHECK (symbolP)) |
484 | symbolP = local_symbol_convert ((struct local_symbol *) symbolP); | |
252b5132 RH |
485 | symbolP->sy_value.X_op = O_symbol; |
486 | symbolP->sy_value.X_add_symbol = mri_common_symbol; | |
487 | symbolP->sy_value.X_add_number = S_GET_VALUE (mri_common_symbol); | |
488 | symbolP->sy_frag = &zero_address_frag; | |
489 | S_SET_SEGMENT (symbolP, expr_section); | |
490 | symbolP->sy_mri_common = 1; | |
491 | } | |
492 | ||
493 | #ifdef tc_frob_label | |
494 | tc_frob_label (symbolP); | |
495 | #endif | |
496 | #ifdef obj_frob_label | |
497 | obj_frob_label (symbolP); | |
498 | #endif | |
499 | ||
500 | return symbolP; | |
501 | } | |
502 | \f | |
7c743825 | 503 | /* Die if we can't insert the symbol. */ |
252b5132 | 504 | |
7c743825 | 505 | void |
252b5132 RH |
506 | symbol_table_insert (symbolP) |
507 | symbolS *symbolP; | |
508 | { | |
509 | register const char *error_string; | |
510 | ||
511 | know (symbolP); | |
512 | know (S_GET_NAME (symbolP)); | |
513 | ||
49309057 ILT |
514 | if (LOCAL_SYMBOL_CHECK (symbolP)) |
515 | { | |
516 | error_string = hash_jam (local_hash, S_GET_NAME (symbolP), | |
517 | (PTR) symbolP); | |
518 | if (error_string != NULL) | |
519 | as_fatal (_("Inserting \"%s\" into symbol table failed: %s"), | |
520 | S_GET_NAME (symbolP), error_string); | |
521 | return; | |
522 | } | |
523 | ||
252b5132 RH |
524 | if ((error_string = hash_jam (sy_hash, S_GET_NAME (symbolP), (PTR) symbolP))) |
525 | { | |
526 | as_fatal (_("Inserting \"%s\" into symbol table failed: %s"), | |
527 | S_GET_NAME (symbolP), error_string); | |
7c743825 KH |
528 | } /* on error */ |
529 | } | |
252b5132 | 530 | \f |
7c743825 KH |
531 | /* If a symbol name does not exist, create it as undefined, and insert |
532 | it into the symbol table. Return a pointer to it. */ | |
533 | ||
252b5132 RH |
534 | symbolS * |
535 | symbol_find_or_make (name) | |
536 | const char *name; | |
537 | { | |
538 | register symbolS *symbolP; | |
539 | ||
540 | symbolP = symbol_find (name); | |
541 | ||
542 | if (symbolP == NULL) | |
543 | { | |
49309057 ILT |
544 | #ifdef BFD_ASSEMBLER |
545 | if (! flag_keep_locals && bfd_is_local_label_name (stdoutput, name)) | |
546 | { | |
547 | symbolP = md_undefined_symbol ((char *) name); | |
548 | if (symbolP != NULL) | |
549 | return symbolP; | |
550 | ||
551 | symbolP = (symbolS *) local_symbol_make (name, undefined_section, | |
552 | (valueT) 0, | |
553 | &zero_address_frag); | |
554 | return symbolP; | |
555 | } | |
556 | #endif | |
557 | ||
252b5132 RH |
558 | symbolP = symbol_make (name); |
559 | ||
560 | symbol_table_insert (symbolP); | |
561 | } /* if symbol wasn't found */ | |
562 | ||
563 | return (symbolP); | |
7c743825 | 564 | } |
252b5132 RH |
565 | |
566 | symbolS * | |
567 | symbol_make (name) | |
568 | CONST char *name; | |
569 | { | |
570 | symbolS *symbolP; | |
571 | ||
7c743825 | 572 | /* Let the machine description default it, e.g. for register names. */ |
252b5132 RH |
573 | symbolP = md_undefined_symbol ((char *) name); |
574 | ||
575 | if (!symbolP) | |
576 | symbolP = symbol_new (name, undefined_section, (valueT) 0, &zero_address_frag); | |
577 | ||
578 | return (symbolP); | |
7c743825 | 579 | } |
252b5132 | 580 | |
7c743825 KH |
581 | /* Implement symbol table lookup. |
582 | In: A symbol's name as a string: '\0' can't be part of a symbol name. | |
583 | Out: NULL if the name was not in the symbol table, else the address | |
584 | of a struct symbol associated with that name. */ | |
252b5132 RH |
585 | |
586 | symbolS * | |
587 | symbol_find (name) | |
588 | CONST char *name; | |
589 | { | |
590 | #ifdef STRIP_UNDERSCORE | |
591 | return (symbol_find_base (name, 1)); | |
592 | #else /* STRIP_UNDERSCORE */ | |
593 | return (symbol_find_base (name, 0)); | |
594 | #endif /* STRIP_UNDERSCORE */ | |
7c743825 | 595 | } |
252b5132 RH |
596 | |
597 | symbolS * | |
598 | symbol_find_base (name, strip_underscore) | |
599 | CONST char *name; | |
600 | int strip_underscore; | |
601 | { | |
602 | if (strip_underscore && *name == '_') | |
603 | name++; | |
604 | ||
605 | #ifdef tc_canonicalize_symbol_name | |
606 | { | |
607 | char *copy; | |
03987ced | 608 | size_t len = strlen (name) + 1; |
252b5132 | 609 | |
03987ced RH |
610 | copy = (char *) alloca (len); |
611 | memcpy (copy, name, len); | |
252b5132 RH |
612 | name = tc_canonicalize_symbol_name (copy); |
613 | } | |
614 | #endif | |
615 | ||
616 | if (! symbols_case_sensitive) | |
617 | { | |
03987ced RH |
618 | char *copy; |
619 | const char *orig; | |
620 | unsigned char c; | |
621 | ||
622 | orig = name; | |
623 | name = copy = (char *) alloca (strlen (name) + 1); | |
624 | ||
625 | while ((c = *orig++) != '\0') | |
626 | { | |
627 | if (islower (c)) | |
628 | c = toupper (c); | |
629 | *copy++ = c; | |
630 | } | |
631 | *copy = '\0'; | |
252b5132 RH |
632 | } |
633 | ||
a1605869 ILT |
634 | #ifdef BFD_ASSEMBLER |
635 | { | |
636 | struct local_symbol *locsym; | |
637 | ||
638 | locsym = (struct local_symbol *) hash_find (local_hash, name); | |
639 | if (locsym != NULL) | |
640 | return (symbolS *) locsym; | |
641 | } | |
642 | #endif | |
49309057 | 643 | |
252b5132 RH |
644 | return ((symbolS *) hash_find (sy_hash, name)); |
645 | } | |
646 | ||
7c743825 KH |
647 | /* Once upon a time, symbols were kept in a singly linked list. At |
648 | least coff needs to be able to rearrange them from time to time, for | |
649 | which a doubly linked list is much more convenient. Loic did these | |
650 | as macros which seemed dangerous to me so they're now functions. | |
651 | xoxorich. */ | |
652 | ||
653 | /* Link symbol ADDME after symbol TARGET in the chain. */ | |
252b5132 | 654 | |
7c743825 | 655 | void |
252b5132 RH |
656 | symbol_append (addme, target, rootPP, lastPP) |
657 | symbolS *addme; | |
658 | symbolS *target; | |
659 | symbolS **rootPP; | |
660 | symbolS **lastPP; | |
661 | { | |
49309057 ILT |
662 | if (LOCAL_SYMBOL_CHECK (addme)) |
663 | abort (); | |
664 | if (target != NULL && LOCAL_SYMBOL_CHECK (target)) | |
665 | abort (); | |
666 | ||
252b5132 RH |
667 | if (target == NULL) |
668 | { | |
669 | know (*rootPP == NULL); | |
670 | know (*lastPP == NULL); | |
671 | addme->sy_next = NULL; | |
672 | #ifdef SYMBOLS_NEED_BACKPOINTERS | |
673 | addme->sy_previous = NULL; | |
674 | #endif | |
675 | *rootPP = addme; | |
676 | *lastPP = addme; | |
677 | return; | |
7c743825 | 678 | } /* if the list is empty */ |
252b5132 RH |
679 | |
680 | if (target->sy_next != NULL) | |
681 | { | |
682 | #ifdef SYMBOLS_NEED_BACKPOINTERS | |
683 | target->sy_next->sy_previous = addme; | |
684 | #endif /* SYMBOLS_NEED_BACKPOINTERS */ | |
685 | } | |
686 | else | |
687 | { | |
688 | know (*lastPP == target); | |
689 | *lastPP = addme; | |
7c743825 | 690 | } /* if we have a next */ |
252b5132 RH |
691 | |
692 | addme->sy_next = target->sy_next; | |
693 | target->sy_next = addme; | |
694 | ||
695 | #ifdef SYMBOLS_NEED_BACKPOINTERS | |
696 | addme->sy_previous = target; | |
697 | #endif /* SYMBOLS_NEED_BACKPOINTERS */ | |
698 | ||
699 | debug_verify_symchain (symbol_rootP, symbol_lastP); | |
700 | } | |
701 | ||
7c743825 KH |
702 | /* Set the chain pointers of SYMBOL to null. */ |
703 | ||
704 | void | |
252b5132 RH |
705 | symbol_clear_list_pointers (symbolP) |
706 | symbolS *symbolP; | |
707 | { | |
49309057 ILT |
708 | if (LOCAL_SYMBOL_CHECK (symbolP)) |
709 | abort (); | |
252b5132 RH |
710 | symbolP->sy_next = NULL; |
711 | #ifdef SYMBOLS_NEED_BACKPOINTERS | |
712 | symbolP->sy_previous = NULL; | |
713 | #endif | |
714 | } | |
715 | ||
716 | #ifdef SYMBOLS_NEED_BACKPOINTERS | |
7c743825 KH |
717 | /* Remove SYMBOLP from the list. */ |
718 | ||
719 | void | |
252b5132 RH |
720 | symbol_remove (symbolP, rootPP, lastPP) |
721 | symbolS *symbolP; | |
722 | symbolS **rootPP; | |
723 | symbolS **lastPP; | |
724 | { | |
49309057 ILT |
725 | if (LOCAL_SYMBOL_CHECK (symbolP)) |
726 | abort (); | |
727 | ||
252b5132 RH |
728 | if (symbolP == *rootPP) |
729 | { | |
730 | *rootPP = symbolP->sy_next; | |
7c743825 | 731 | } /* if it was the root */ |
252b5132 RH |
732 | |
733 | if (symbolP == *lastPP) | |
734 | { | |
735 | *lastPP = symbolP->sy_previous; | |
7c743825 | 736 | } /* if it was the tail */ |
252b5132 RH |
737 | |
738 | if (symbolP->sy_next != NULL) | |
739 | { | |
740 | symbolP->sy_next->sy_previous = symbolP->sy_previous; | |
7c743825 | 741 | } /* if not last */ |
252b5132 RH |
742 | |
743 | if (symbolP->sy_previous != NULL) | |
744 | { | |
745 | symbolP->sy_previous->sy_next = symbolP->sy_next; | |
7c743825 | 746 | } /* if not first */ |
252b5132 RH |
747 | |
748 | debug_verify_symchain (*rootPP, *lastPP); | |
749 | } | |
750 | ||
7c743825 KH |
751 | /* Link symbol ADDME before symbol TARGET in the chain. */ |
752 | ||
753 | void | |
252b5132 RH |
754 | symbol_insert (addme, target, rootPP, lastPP) |
755 | symbolS *addme; | |
756 | symbolS *target; | |
757 | symbolS **rootPP; | |
ab9da554 | 758 | symbolS **lastPP ATTRIBUTE_UNUSED; |
252b5132 | 759 | { |
49309057 ILT |
760 | if (LOCAL_SYMBOL_CHECK (addme)) |
761 | abort (); | |
762 | if (LOCAL_SYMBOL_CHECK (target)) | |
763 | abort (); | |
764 | ||
252b5132 RH |
765 | if (target->sy_previous != NULL) |
766 | { | |
767 | target->sy_previous->sy_next = addme; | |
768 | } | |
769 | else | |
770 | { | |
771 | know (*rootPP == target); | |
772 | *rootPP = addme; | |
7c743825 | 773 | } /* if not first */ |
252b5132 RH |
774 | |
775 | addme->sy_previous = target->sy_previous; | |
776 | target->sy_previous = addme; | |
777 | addme->sy_next = target; | |
778 | ||
779 | debug_verify_symchain (*rootPP, *lastPP); | |
780 | } | |
781 | ||
782 | #endif /* SYMBOLS_NEED_BACKPOINTERS */ | |
783 | ||
7c743825 | 784 | void |
252b5132 RH |
785 | verify_symbol_chain (rootP, lastP) |
786 | symbolS *rootP; | |
787 | symbolS *lastP; | |
788 | { | |
789 | symbolS *symbolP = rootP; | |
790 | ||
791 | if (symbolP == NULL) | |
792 | return; | |
793 | ||
794 | for (; symbol_next (symbolP) != NULL; symbolP = symbol_next (symbolP)) | |
795 | { | |
49309057 ILT |
796 | #ifdef BFD_ASSEMBLER |
797 | assert (symbolP->bsym != NULL); | |
798 | #endif | |
252b5132 RH |
799 | #ifdef SYMBOLS_NEED_BACKPOINTERS |
800 | assert (symbolP->sy_next->sy_previous == symbolP); | |
801 | #else | |
802 | /* Walk the list anyways, to make sure pointers are still good. */ | |
803 | ; | |
804 | #endif /* SYMBOLS_NEED_BACKPOINTERS */ | |
805 | } | |
806 | ||
807 | assert (lastP == symbolP); | |
808 | } | |
809 | ||
810 | void | |
811 | verify_symbol_chain_2 (sym) | |
812 | symbolS *sym; | |
813 | { | |
814 | symbolS *p = sym, *n = sym; | |
815 | #ifdef SYMBOLS_NEED_BACKPOINTERS | |
816 | while (symbol_previous (p)) | |
817 | p = symbol_previous (p); | |
818 | #endif | |
819 | while (symbol_next (n)) | |
820 | n = symbol_next (n); | |
821 | verify_symbol_chain (p, n); | |
822 | } | |
823 | ||
824 | /* Resolve the value of a symbol. This is called during the final | |
825 | pass over the symbol table to resolve any symbols with complex | |
826 | values. */ | |
827 | ||
828 | valueT | |
829 | resolve_symbol_value (symp, finalize) | |
830 | symbolS *symp; | |
831 | int finalize; | |
832 | { | |
833 | int resolved; | |
834 | valueT final_val; | |
835 | segT final_seg; | |
836 | ||
a1605869 | 837 | #ifdef BFD_ASSEMBLER |
49309057 ILT |
838 | if (LOCAL_SYMBOL_CHECK (symp)) |
839 | { | |
840 | struct local_symbol *locsym = (struct local_symbol *) symp; | |
841 | ||
842 | if (local_symbol_resolved_p (locsym)) | |
24ef8152 | 843 | return locsym->lsy_offset / bfd_octets_per_byte (stdoutput); |
49309057 ILT |
844 | |
845 | final_val = (local_symbol_get_frag (locsym)->fr_address | |
24ef8152 | 846 | + locsym->lsy_offset) / bfd_octets_per_byte (stdoutput); |
49309057 ILT |
847 | |
848 | if (finalize) | |
849 | { | |
850 | locsym->lsy_offset = final_val; | |
851 | local_symbol_mark_resolved (locsym); | |
852 | } | |
853 | ||
854 | return final_val; | |
855 | } | |
a1605869 | 856 | #endif |
49309057 | 857 | |
252b5132 RH |
858 | if (symp->sy_resolved) |
859 | { | |
860 | if (symp->sy_value.X_op == O_constant) | |
861 | return (valueT) symp->sy_value.X_add_number; | |
862 | else | |
863 | return 0; | |
864 | } | |
865 | ||
866 | resolved = 0; | |
867 | final_seg = S_GET_SEGMENT (symp); | |
868 | ||
869 | if (symp->sy_resolving) | |
870 | { | |
871 | if (finalize) | |
7c743825 KH |
872 | as_bad (_("Symbol definition loop encountered at %s"), |
873 | S_GET_NAME (symp)); | |
252b5132 RH |
874 | final_val = 0; |
875 | resolved = 1; | |
876 | } | |
877 | else | |
878 | { | |
879 | symbolS *add_symbol, *op_symbol; | |
880 | offsetT left, right; | |
881 | segT seg_left, seg_right; | |
882 | operatorT op; | |
883 | ||
884 | symp->sy_resolving = 1; | |
885 | ||
886 | /* Help out with CSE. */ | |
887 | add_symbol = symp->sy_value.X_add_symbol; | |
888 | op_symbol = symp->sy_value.X_op_symbol; | |
889 | final_val = symp->sy_value.X_add_number; | |
890 | op = symp->sy_value.X_op; | |
891 | ||
892 | switch (op) | |
893 | { | |
894 | default: | |
895 | BAD_CASE (op); | |
896 | break; | |
897 | ||
898 | case O_absent: | |
899 | final_val = 0; | |
900 | /* Fall through. */ | |
901 | ||
902 | case O_constant: | |
bea9907b | 903 | final_val += symp->sy_frag->fr_address / OCTETS_PER_BYTE; |
252b5132 RH |
904 | if (final_seg == expr_section) |
905 | final_seg = absolute_section; | |
906 | resolved = 1; | |
907 | break; | |
908 | ||
909 | case O_symbol: | |
910 | case O_symbol_rva: | |
911 | left = resolve_symbol_value (add_symbol, finalize); | |
912 | do_symbol: | |
913 | ||
914 | if (symp->sy_mri_common) | |
915 | { | |
916 | /* This is a symbol inside an MRI common section. The | |
917 | relocation routines are going to handle it specially. | |
918 | Don't change the value. */ | |
49309057 | 919 | resolved = symbol_resolved_p (add_symbol); |
252b5132 RH |
920 | break; |
921 | } | |
922 | ||
923 | if (finalize && final_val == 0) | |
49309057 ILT |
924 | { |
925 | if (LOCAL_SYMBOL_CHECK (add_symbol)) | |
926 | add_symbol = local_symbol_convert ((struct local_symbol *) | |
927 | add_symbol); | |
928 | copy_symbol_attributes (symp, add_symbol); | |
929 | } | |
252b5132 RH |
930 | |
931 | /* If we have equated this symbol to an undefined symbol, we | |
932 | keep X_op set to O_symbol, and we don't change | |
933 | X_add_number. This permits the routine which writes out | |
934 | relocation to detect this case, and convert the | |
935 | relocation to be against the symbol to which this symbol | |
936 | is equated. */ | |
937 | if (! S_IS_DEFINED (add_symbol) || S_IS_COMMON (add_symbol)) | |
938 | { | |
939 | if (finalize) | |
940 | { | |
941 | S_SET_SEGMENT (symp, S_GET_SEGMENT (add_symbol)); | |
942 | symp->sy_value.X_op = O_symbol; | |
943 | symp->sy_value.X_add_symbol = add_symbol; | |
944 | symp->sy_value.X_add_number = final_val; | |
945 | } | |
946 | final_val = 0; | |
49309057 | 947 | resolved = symbol_resolved_p (add_symbol); |
252b5132 RH |
948 | goto exit_dont_set_value; |
949 | } | |
950 | else | |
951 | { | |
952 | final_val += symp->sy_frag->fr_address + left; | |
953 | if (final_seg == expr_section || final_seg == undefined_section) | |
954 | final_seg = S_GET_SEGMENT (add_symbol); | |
955 | } | |
956 | ||
49309057 | 957 | resolved = symbol_resolved_p (add_symbol); |
252b5132 RH |
958 | break; |
959 | ||
960 | case O_uminus: | |
961 | case O_bit_not: | |
962 | case O_logical_not: | |
963 | left = resolve_symbol_value (add_symbol, finalize); | |
964 | ||
965 | if (op == O_uminus) | |
966 | left = -left; | |
967 | else if (op == O_logical_not) | |
968 | left = !left; | |
969 | else | |
970 | left = ~left; | |
971 | ||
972 | final_val += left + symp->sy_frag->fr_address; | |
973 | if (final_seg == expr_section || final_seg == undefined_section) | |
974 | final_seg = absolute_section; | |
975 | ||
49309057 | 976 | resolved = symbol_resolved_p (add_symbol); |
252b5132 RH |
977 | break; |
978 | ||
979 | case O_multiply: | |
980 | case O_divide: | |
981 | case O_modulus: | |
982 | case O_left_shift: | |
983 | case O_right_shift: | |
984 | case O_bit_inclusive_or: | |
985 | case O_bit_or_not: | |
986 | case O_bit_exclusive_or: | |
987 | case O_bit_and: | |
988 | case O_add: | |
989 | case O_subtract: | |
990 | case O_eq: | |
991 | case O_ne: | |
992 | case O_lt: | |
993 | case O_le: | |
994 | case O_ge: | |
995 | case O_gt: | |
996 | case O_logical_and: | |
997 | case O_logical_or: | |
998 | left = resolve_symbol_value (add_symbol, finalize); | |
999 | right = resolve_symbol_value (op_symbol, finalize); | |
1000 | seg_left = S_GET_SEGMENT (add_symbol); | |
1001 | seg_right = S_GET_SEGMENT (op_symbol); | |
1002 | ||
1003 | /* Simplify addition or subtraction of a constant by folding the | |
1004 | constant into X_add_number. */ | |
1005 | if (op == O_add || op == O_subtract) | |
1006 | { | |
1007 | if (seg_right == absolute_section) | |
1008 | { | |
1009 | if (op == O_add) | |
1010 | final_val += right; | |
1011 | else | |
1012 | final_val -= right; | |
1013 | op = O_symbol; | |
1014 | op_symbol = NULL; | |
1015 | goto do_symbol; | |
1016 | } | |
1017 | else if (seg_left == absolute_section && op == O_add) | |
1018 | { | |
1019 | op = O_symbol; | |
1020 | final_val += left; | |
1021 | add_symbol = op_symbol; | |
1022 | left = right; | |
1023 | op_symbol = NULL; | |
1024 | goto do_symbol; | |
1025 | } | |
1026 | } | |
1027 | ||
1028 | /* Subtraction is permitted if both operands are in the same | |
1029 | section. Otherwise, both operands must be absolute. We | |
1030 | already handled the case of addition or subtraction of a | |
1031 | constant above. This will probably need to be changed | |
1032 | for an object file format which supports arbitrary | |
1033 | expressions, such as IEEE-695. */ | |
1034 | /* Don't emit messages unless we're finalizing the symbol value, | |
1035 | otherwise we may get the same message multiple times. */ | |
9b4d630b ILT |
1036 | if ((seg_left != absolute_section |
1037 | || seg_right != absolute_section) | |
1038 | && (op != O_subtract | |
1039 | || seg_left != seg_right | |
1040 | || seg_left == undefined_section) | |
252b5132 RH |
1041 | && finalize) |
1042 | { | |
1043 | char *file; | |
1044 | unsigned int line; | |
1045 | ||
1046 | if (expr_symbol_where (symp, &file, &line)) | |
1047 | { | |
1048 | if (seg_left == undefined_section) | |
1049 | as_bad_where (file, line, | |
1050 | _("undefined symbol %s in operation"), | |
1051 | S_GET_NAME (symp->sy_value.X_add_symbol)); | |
1052 | if (seg_right == undefined_section) | |
1053 | as_bad_where (file, line, | |
1054 | _("undefined symbol %s in operation"), | |
1055 | S_GET_NAME (symp->sy_value.X_op_symbol)); | |
1056 | if (seg_left != undefined_section | |
1057 | && seg_right != undefined_section) | |
7c743825 KH |
1058 | as_bad_where (file, line, |
1059 | _("invalid section for operation")); | |
252b5132 RH |
1060 | } |
1061 | else | |
1062 | { | |
1063 | if (seg_left == undefined_section) | |
1064 | as_bad (_("undefined symbol %s in operation setting %s"), | |
1065 | S_GET_NAME (symp->sy_value.X_add_symbol), | |
1066 | S_GET_NAME (symp)); | |
1067 | if (seg_right == undefined_section) | |
1068 | as_bad (_("undefined symbol %s in operation setting %s"), | |
1069 | S_GET_NAME (symp->sy_value.X_op_symbol), | |
1070 | S_GET_NAME (symp)); | |
1071 | if (seg_left != undefined_section | |
1072 | && seg_right != undefined_section) | |
1073 | as_bad (_("invalid section for operation setting %s"), | |
1074 | S_GET_NAME (symp)); | |
1075 | } | |
1076 | } | |
1077 | ||
1078 | /* Check for division by zero. */ | |
1079 | if ((op == O_divide || op == O_modulus) && right == 0) | |
1080 | { | |
1081 | /* If seg_right is not absolute_section, then we've | |
1082 | already issued a warning about using a bad symbol. */ | |
1083 | if (seg_right == absolute_section && finalize) | |
1084 | { | |
1085 | char *file; | |
1086 | unsigned int line; | |
1087 | ||
1088 | if (expr_symbol_where (symp, &file, &line)) | |
1089 | as_bad_where (file, line, _("division by zero")); | |
1090 | else | |
1091 | as_bad (_("division by zero when setting %s"), | |
1092 | S_GET_NAME (symp)); | |
1093 | } | |
1094 | ||
1095 | right = 1; | |
1096 | } | |
1097 | ||
1098 | switch (symp->sy_value.X_op) | |
1099 | { | |
1100 | case O_multiply: left *= right; break; | |
1101 | case O_divide: left /= right; break; | |
1102 | case O_modulus: left %= right; break; | |
1103 | case O_left_shift: left <<= right; break; | |
1104 | case O_right_shift: left >>= right; break; | |
1105 | case O_bit_inclusive_or: left |= right; break; | |
1106 | case O_bit_or_not: left |= ~right; break; | |
1107 | case O_bit_exclusive_or: left ^= right; break; | |
1108 | case O_bit_and: left &= right; break; | |
1109 | case O_add: left += right; break; | |
1110 | case O_subtract: left -= right; break; | |
1111 | case O_eq: left = left == right ? ~ (offsetT) 0 : 0; break; | |
1112 | case O_ne: left = left != right ? ~ (offsetT) 0 : 0; break; | |
1113 | case O_lt: left = left < right ? ~ (offsetT) 0 : 0; break; | |
1114 | case O_le: left = left <= right ? ~ (offsetT) 0 : 0; break; | |
1115 | case O_ge: left = left >= right ? ~ (offsetT) 0 : 0; break; | |
1116 | case O_gt: left = left > right ? ~ (offsetT) 0 : 0; break; | |
1117 | case O_logical_and: left = left && right; break; | |
1118 | case O_logical_or: left = left || right; break; | |
1119 | default: abort (); | |
1120 | } | |
1121 | ||
1122 | final_val += symp->sy_frag->fr_address + left; | |
1123 | if (final_seg == expr_section || final_seg == undefined_section) | |
1124 | final_seg = absolute_section; | |
49309057 ILT |
1125 | resolved = (symbol_resolved_p (add_symbol) |
1126 | && symbol_resolved_p (op_symbol)); | |
7c743825 | 1127 | break; |
252b5132 RH |
1128 | |
1129 | case O_register: | |
1130 | case O_big: | |
1131 | case O_illegal: | |
1132 | /* Give an error (below) if not in expr_section. We don't | |
1133 | want to worry about expr_section symbols, because they | |
1134 | are fictional (they are created as part of expression | |
1135 | resolution), and any problems may not actually mean | |
1136 | anything. */ | |
1137 | break; | |
1138 | } | |
1139 | ||
1140 | symp->sy_resolving = 0; | |
1141 | } | |
1142 | ||
1143 | if (finalize) | |
1144 | { | |
1145 | S_SET_VALUE (symp, final_val); | |
1146 | ||
1147 | #if defined (OBJ_AOUT) && ! defined (BFD_ASSEMBLER) | |
1148 | /* The old a.out backend does not handle S_SET_SEGMENT correctly | |
1149 | for a stab symbol, so we use this bad hack. */ | |
1150 | if (final_seg != S_GET_SEGMENT (symp)) | |
1151 | #endif | |
1152 | S_SET_SEGMENT (symp, final_seg); | |
1153 | } | |
1154 | ||
1155 | exit_dont_set_value: | |
1156 | /* Don't worry if we can't resolve an expr_section symbol. */ | |
1157 | if (finalize) | |
1158 | { | |
1159 | if (resolved) | |
1160 | symp->sy_resolved = 1; | |
1161 | else if (S_GET_SEGMENT (symp) != expr_section) | |
1162 | { | |
7c743825 KH |
1163 | as_bad (_("can't resolve value for symbol \"%s\""), |
1164 | S_GET_NAME (symp)); | |
252b5132 RH |
1165 | symp->sy_resolved = 1; |
1166 | } | |
1167 | } | |
1168 | ||
1169 | return final_val; | |
1170 | } | |
1171 | ||
49309057 ILT |
1172 | #ifdef BFD_ASSEMBLER |
1173 | ||
1174 | static void resolve_local_symbol PARAMS ((const char *, PTR)); | |
1175 | ||
1176 | /* A static function passed to hash_traverse. */ | |
1177 | ||
1178 | static void | |
1179 | resolve_local_symbol (key, value) | |
ab9da554 | 1180 | const char *key ATTRIBUTE_UNUSED; |
49309057 ILT |
1181 | PTR value; |
1182 | { | |
1183 | if (value != NULL) | |
1184 | resolve_symbol_value (value, 1); | |
1185 | } | |
1186 | ||
1187 | #endif | |
1188 | ||
1189 | /* Resolve all local symbols. */ | |
1190 | ||
1191 | void | |
1192 | resolve_local_symbol_values () | |
1193 | { | |
1194 | #ifdef BFD_ASSEMBLER | |
1195 | hash_traverse (local_hash, resolve_local_symbol); | |
1196 | #endif | |
1197 | } | |
1198 | ||
252b5132 RH |
1199 | /* Dollar labels look like a number followed by a dollar sign. Eg, "42$". |
1200 | They are *really* local. That is, they go out of scope whenever we see a | |
1201 | label that isn't local. Also, like fb labels, there can be multiple | |
1202 | instances of a dollar label. Therefor, we name encode each instance with | |
1203 | the instance number, keep a list of defined symbols separate from the real | |
1204 | symbol table, and we treat these buggers as a sparse array. */ | |
1205 | ||
1206 | static long *dollar_labels; | |
1207 | static long *dollar_label_instances; | |
1208 | static char *dollar_label_defines; | |
1209 | static unsigned long dollar_label_count; | |
1210 | static unsigned long dollar_label_max; | |
1211 | ||
7c743825 | 1212 | int |
252b5132 RH |
1213 | dollar_label_defined (label) |
1214 | long label; | |
1215 | { | |
1216 | long *i; | |
1217 | ||
1218 | know ((dollar_labels != NULL) || (dollar_label_count == 0)); | |
1219 | ||
1220 | for (i = dollar_labels; i < dollar_labels + dollar_label_count; ++i) | |
1221 | if (*i == label) | |
1222 | return dollar_label_defines[i - dollar_labels]; | |
1223 | ||
7c743825 | 1224 | /* If we get here, label isn't defined. */ |
252b5132 | 1225 | return 0; |
7c743825 | 1226 | } |
252b5132 RH |
1227 | |
1228 | static long | |
1229 | dollar_label_instance (label) | |
1230 | long label; | |
1231 | { | |
1232 | long *i; | |
1233 | ||
1234 | know ((dollar_labels != NULL) || (dollar_label_count == 0)); | |
1235 | ||
1236 | for (i = dollar_labels; i < dollar_labels + dollar_label_count; ++i) | |
1237 | if (*i == label) | |
1238 | return (dollar_label_instances[i - dollar_labels]); | |
1239 | ||
7c743825 KH |
1240 | /* If we get here, we haven't seen the label before. |
1241 | Therefore its instance count is zero. */ | |
252b5132 RH |
1242 | return 0; |
1243 | } | |
1244 | ||
7c743825 | 1245 | void |
252b5132 RH |
1246 | dollar_label_clear () |
1247 | { | |
1248 | memset (dollar_label_defines, '\0', (unsigned int) dollar_label_count); | |
1249 | } | |
1250 | ||
1251 | #define DOLLAR_LABEL_BUMP_BY 10 | |
1252 | ||
7c743825 | 1253 | void |
252b5132 RH |
1254 | define_dollar_label (label) |
1255 | long label; | |
1256 | { | |
1257 | long *i; | |
1258 | ||
1259 | for (i = dollar_labels; i < dollar_labels + dollar_label_count; ++i) | |
1260 | if (*i == label) | |
1261 | { | |
1262 | ++dollar_label_instances[i - dollar_labels]; | |
1263 | dollar_label_defines[i - dollar_labels] = 1; | |
1264 | return; | |
1265 | } | |
1266 | ||
7c743825 | 1267 | /* If we get to here, we don't have label listed yet. */ |
252b5132 RH |
1268 | |
1269 | if (dollar_labels == NULL) | |
1270 | { | |
1271 | dollar_labels = (long *) xmalloc (DOLLAR_LABEL_BUMP_BY * sizeof (long)); | |
1272 | dollar_label_instances = (long *) xmalloc (DOLLAR_LABEL_BUMP_BY * sizeof (long)); | |
1273 | dollar_label_defines = xmalloc (DOLLAR_LABEL_BUMP_BY); | |
1274 | dollar_label_max = DOLLAR_LABEL_BUMP_BY; | |
1275 | dollar_label_count = 0; | |
1276 | } | |
1277 | else if (dollar_label_count == dollar_label_max) | |
1278 | { | |
1279 | dollar_label_max += DOLLAR_LABEL_BUMP_BY; | |
1280 | dollar_labels = (long *) xrealloc ((char *) dollar_labels, | |
1281 | dollar_label_max * sizeof (long)); | |
1282 | dollar_label_instances = (long *) xrealloc ((char *) dollar_label_instances, | |
1283 | dollar_label_max * sizeof (long)); | |
1284 | dollar_label_defines = xrealloc (dollar_label_defines, dollar_label_max); | |
7c743825 | 1285 | } /* if we needed to grow */ |
252b5132 RH |
1286 | |
1287 | dollar_labels[dollar_label_count] = label; | |
1288 | dollar_label_instances[dollar_label_count] = 1; | |
1289 | dollar_label_defines[dollar_label_count] = 1; | |
1290 | ++dollar_label_count; | |
1291 | } | |
1292 | ||
7c743825 KH |
1293 | /* Caller must copy returned name: we re-use the area for the next name. |
1294 | ||
1295 | The mth occurence of label n: is turned into the symbol "Ln^Am" | |
1296 | where n is the label number and m is the instance number. "L" makes | |
1297 | it a label discarded unless debugging and "^A"('\1') ensures no | |
1298 | ordinary symbol SHOULD get the same name as a local label | |
1299 | symbol. The first "4:" is "L4^A1" - the m numbers begin at 1. | |
1300 | ||
1301 | fb labels get the same treatment, except that ^B is used in place | |
1302 | of ^A. */ | |
1303 | ||
1304 | char * /* Return local label name. */ | |
252b5132 | 1305 | dollar_label_name (n, augend) |
7c743825 KH |
1306 | register long n; /* we just saw "n$:" : n a number. */ |
1307 | register int augend; /* 0 for current instance, 1 for new instance. */ | |
252b5132 RH |
1308 | { |
1309 | long i; | |
7c743825 | 1310 | /* Returned to caller, then copied. Used for created names ("4f"). */ |
252b5132 RH |
1311 | static char symbol_name_build[24]; |
1312 | register char *p; | |
1313 | register char *q; | |
7c743825 | 1314 | char symbol_name_temporary[20]; /* Build up a number, BACKWARDS. */ |
252b5132 RH |
1315 | |
1316 | know (n >= 0); | |
1317 | know (augend == 0 || augend == 1); | |
1318 | p = symbol_name_build; | |
f84dd1f0 NC |
1319 | #ifdef LOCAL_LABEL_PREFIX |
1320 | *p++ = LOCAL_LABEL_PREFIX; | |
1321 | #endif | |
252b5132 RH |
1322 | *p++ = 'L'; |
1323 | ||
7c743825 KH |
1324 | /* Next code just does sprintf( {}, "%d", n); */ |
1325 | /* Label number. */ | |
252b5132 RH |
1326 | q = symbol_name_temporary; |
1327 | for (*q++ = 0, i = n; i; ++q) | |
1328 | { | |
1329 | *q = i % 10 + '0'; | |
1330 | i /= 10; | |
1331 | } | |
1332 | while ((*p = *--q) != '\0') | |
1333 | ++p; | |
1334 | ||
aa257fcd | 1335 | *p++ = DOLLAR_LABEL_CHAR; /* ^A */ |
252b5132 | 1336 | |
7c743825 | 1337 | /* Instance number. */ |
252b5132 RH |
1338 | q = symbol_name_temporary; |
1339 | for (*q++ = 0, i = dollar_label_instance (n) + augend; i; ++q) | |
1340 | { | |
1341 | *q = i % 10 + '0'; | |
1342 | i /= 10; | |
1343 | } | |
1344 | while ((*p++ = *--q) != '\0');; | |
1345 | ||
7c743825 | 1346 | /* The label, as a '\0' ended string, starts at symbol_name_build. */ |
252b5132 RH |
1347 | return symbol_name_build; |
1348 | } | |
1349 | ||
7c743825 KH |
1350 | /* Sombody else's idea of local labels. They are made by "n:" where n |
1351 | is any decimal digit. Refer to them with | |
1352 | "nb" for previous (backward) n: | |
1353 | or "nf" for next (forward) n:. | |
1354 | ||
1355 | We do a little better and let n be any number, not just a single digit, but | |
1356 | since the other guy's assembler only does ten, we treat the first ten | |
1357 | specially. | |
1358 | ||
1359 | Like someone else's assembler, we have one set of local label counters for | |
1360 | entire assembly, not one set per (sub)segment like in most assemblers. This | |
1361 | implies that one can refer to a label in another segment, and indeed some | |
1362 | crufty compilers have done just that. | |
1363 | ||
1364 | Since there could be a LOT of these things, treat them as a sparse | |
1365 | array. */ | |
252b5132 RH |
1366 | |
1367 | #define FB_LABEL_SPECIAL (10) | |
1368 | ||
1369 | static long fb_low_counter[FB_LABEL_SPECIAL]; | |
1370 | static long *fb_labels; | |
1371 | static long *fb_label_instances; | |
1372 | static long fb_label_count; | |
1373 | static long fb_label_max; | |
1374 | ||
7c743825 | 1375 | /* This must be more than FB_LABEL_SPECIAL. */ |
252b5132 RH |
1376 | #define FB_LABEL_BUMP_BY (FB_LABEL_SPECIAL + 6) |
1377 | ||
7c743825 | 1378 | static void |
252b5132 RH |
1379 | fb_label_init () |
1380 | { | |
1381 | memset ((void *) fb_low_counter, '\0', sizeof (fb_low_counter)); | |
7c743825 | 1382 | } |
252b5132 | 1383 | |
7c743825 KH |
1384 | /* Add one to the instance number of this fb label. */ |
1385 | ||
1386 | void | |
252b5132 RH |
1387 | fb_label_instance_inc (label) |
1388 | long label; | |
1389 | { | |
1390 | long *i; | |
1391 | ||
1392 | if (label < FB_LABEL_SPECIAL) | |
1393 | { | |
1394 | ++fb_low_counter[label]; | |
1395 | return; | |
1396 | } | |
1397 | ||
1398 | if (fb_labels != NULL) | |
1399 | { | |
1400 | for (i = fb_labels + FB_LABEL_SPECIAL; | |
1401 | i < fb_labels + fb_label_count; ++i) | |
1402 | { | |
1403 | if (*i == label) | |
1404 | { | |
1405 | ++fb_label_instances[i - fb_labels]; | |
1406 | return; | |
7c743825 KH |
1407 | } /* if we find it */ |
1408 | } /* for each existing label */ | |
252b5132 RH |
1409 | } |
1410 | ||
7c743825 | 1411 | /* If we get to here, we don't have label listed yet. */ |
252b5132 RH |
1412 | |
1413 | if (fb_labels == NULL) | |
1414 | { | |
1415 | fb_labels = (long *) xmalloc (FB_LABEL_BUMP_BY * sizeof (long)); | |
1416 | fb_label_instances = (long *) xmalloc (FB_LABEL_BUMP_BY * sizeof (long)); | |
1417 | fb_label_max = FB_LABEL_BUMP_BY; | |
1418 | fb_label_count = FB_LABEL_SPECIAL; | |
1419 | ||
1420 | } | |
1421 | else if (fb_label_count == fb_label_max) | |
1422 | { | |
1423 | fb_label_max += FB_LABEL_BUMP_BY; | |
1424 | fb_labels = (long *) xrealloc ((char *) fb_labels, | |
1425 | fb_label_max * sizeof (long)); | |
1426 | fb_label_instances = (long *) xrealloc ((char *) fb_label_instances, | |
1427 | fb_label_max * sizeof (long)); | |
7c743825 | 1428 | } /* if we needed to grow */ |
252b5132 RH |
1429 | |
1430 | fb_labels[fb_label_count] = label; | |
1431 | fb_label_instances[fb_label_count] = 1; | |
1432 | ++fb_label_count; | |
1433 | } | |
1434 | ||
7c743825 | 1435 | static long |
252b5132 RH |
1436 | fb_label_instance (label) |
1437 | long label; | |
1438 | { | |
1439 | long *i; | |
1440 | ||
1441 | if (label < FB_LABEL_SPECIAL) | |
1442 | { | |
1443 | return (fb_low_counter[label]); | |
1444 | } | |
1445 | ||
1446 | if (fb_labels != NULL) | |
1447 | { | |
1448 | for (i = fb_labels + FB_LABEL_SPECIAL; | |
1449 | i < fb_labels + fb_label_count; ++i) | |
1450 | { | |
1451 | if (*i == label) | |
1452 | { | |
1453 | return (fb_label_instances[i - fb_labels]); | |
7c743825 KH |
1454 | } /* if we find it */ |
1455 | } /* for each existing label */ | |
252b5132 RH |
1456 | } |
1457 | ||
1458 | /* We didn't find the label, so this must be a reference to the | |
1459 | first instance. */ | |
1460 | return 0; | |
1461 | } | |
1462 | ||
7c743825 KH |
1463 | /* Caller must copy returned name: we re-use the area for the next name. |
1464 | ||
1465 | The mth occurence of label n: is turned into the symbol "Ln^Bm" | |
1466 | where n is the label number and m is the instance number. "L" makes | |
1467 | it a label discarded unless debugging and "^B"('\2') ensures no | |
1468 | ordinary symbol SHOULD get the same name as a local label | |
1469 | symbol. The first "4:" is "L4^B1" - the m numbers begin at 1. | |
1470 | ||
1471 | dollar labels get the same treatment, except that ^A is used in | |
1472 | place of ^B. */ | |
1473 | ||
1474 | char * /* Return local label name. */ | |
252b5132 | 1475 | fb_label_name (n, augend) |
7c743825 KH |
1476 | long n; /* We just saw "n:", "nf" or "nb" : n a number. */ |
1477 | long augend; /* 0 for nb, 1 for n:, nf. */ | |
252b5132 RH |
1478 | { |
1479 | long i; | |
7c743825 | 1480 | /* Returned to caller, then copied. Used for created names ("4f"). */ |
252b5132 RH |
1481 | static char symbol_name_build[24]; |
1482 | register char *p; | |
1483 | register char *q; | |
7c743825 | 1484 | char symbol_name_temporary[20]; /* Build up a number, BACKWARDS. */ |
252b5132 RH |
1485 | |
1486 | know (n >= 0); | |
1487 | know (augend == 0 || augend == 1); | |
1488 | p = symbol_name_build; | |
aa257fcd NC |
1489 | #ifdef LOCAL_LABEL_PREFIX |
1490 | *p++ = LOCAL_LABEL_PREFIX; | |
1491 | #endif | |
252b5132 RH |
1492 | *p++ = 'L'; |
1493 | ||
7c743825 KH |
1494 | /* Next code just does sprintf( {}, "%d", n); */ |
1495 | /* Label number. */ | |
252b5132 RH |
1496 | q = symbol_name_temporary; |
1497 | for (*q++ = 0, i = n; i; ++q) | |
1498 | { | |
1499 | *q = i % 10 + '0'; | |
1500 | i /= 10; | |
1501 | } | |
1502 | while ((*p = *--q) != '\0') | |
1503 | ++p; | |
1504 | ||
aa257fcd | 1505 | *p++ = LOCAL_LABEL_CHAR; /* ^B */ |
252b5132 | 1506 | |
7c743825 | 1507 | /* Instance number. */ |
252b5132 RH |
1508 | q = symbol_name_temporary; |
1509 | for (*q++ = 0, i = fb_label_instance (n) + augend; i; ++q) | |
1510 | { | |
1511 | *q = i % 10 + '0'; | |
1512 | i /= 10; | |
1513 | } | |
1514 | while ((*p++ = *--q) != '\0');; | |
1515 | ||
7c743825 | 1516 | /* The label, as a '\0' ended string, starts at symbol_name_build. */ |
252b5132 | 1517 | return (symbol_name_build); |
7c743825 | 1518 | } |
252b5132 | 1519 | |
7c743825 KH |
1520 | /* Decode name that may have been generated by foo_label_name() above. |
1521 | If the name wasn't generated by foo_label_name(), then return it | |
1522 | unaltered. This is used for error messages. */ | |
252b5132 RH |
1523 | |
1524 | char * | |
1525 | decode_local_label_name (s) | |
1526 | char *s; | |
1527 | { | |
1528 | char *p; | |
1529 | char *symbol_decode; | |
1530 | int label_number; | |
1531 | int instance_number; | |
1532 | char *type; | |
1533 | const char *message_format = _("\"%d\" (instance number %d of a %s label)"); | |
aa257fcd | 1534 | int index = 0; |
43ad3147 | 1535 | |
aa257fcd NC |
1536 | #ifdef LOCAL_LABEL_PREFIX |
1537 | if (s[index] == LOCAL_LABEL_PREFIX) | |
1538 | ++index; | |
1539 | #endif | |
43ad3147 | 1540 | |
aa257fcd | 1541 | if (s[index] != 'L') |
252b5132 RH |
1542 | return s; |
1543 | ||
aa257fcd | 1544 | for (label_number = 0, p = s + index + 1; isdigit ((unsigned char) *p); ++p) |
252b5132 RH |
1545 | label_number = (10 * label_number) + *p - '0'; |
1546 | ||
aa257fcd | 1547 | if (*p == DOLLAR_LABEL_CHAR) |
252b5132 | 1548 | type = "dollar"; |
aa257fcd | 1549 | else if (*p == LOCAL_LABEL_CHAR) |
252b5132 RH |
1550 | type = "fb"; |
1551 | else | |
1552 | return s; | |
1553 | ||
1554 | for (instance_number = 0, p++; isdigit ((unsigned char) *p); ++p) | |
1555 | instance_number = (10 * instance_number) + *p - '0'; | |
1556 | ||
1557 | symbol_decode = obstack_alloc (¬es, strlen (message_format) + 30); | |
1558 | sprintf (symbol_decode, message_format, label_number, instance_number, type); | |
1559 | ||
1560 | return symbol_decode; | |
1561 | } | |
1562 | ||
1563 | /* Get the value of a symbol. */ | |
1564 | ||
1565 | valueT | |
1566 | S_GET_VALUE (s) | |
1567 | symbolS *s; | |
1568 | { | |
a1605869 | 1569 | #ifdef BFD_ASSEMBLER |
49309057 ILT |
1570 | if (LOCAL_SYMBOL_CHECK (s)) |
1571 | return ((struct local_symbol *) s)->lsy_offset; | |
a1605869 | 1572 | #endif |
49309057 | 1573 | |
252b5132 RH |
1574 | if (!s->sy_resolved && s->sy_value.X_op != O_constant) |
1575 | resolve_symbol_value (s, 1); | |
1576 | if (s->sy_value.X_op != O_constant) | |
1577 | { | |
1578 | static symbolS *recur; | |
1579 | ||
1580 | /* FIXME: In non BFD assemblers, S_IS_DEFINED and S_IS_COMMON | |
1581 | may call S_GET_VALUE. We use a static symbol to avoid the | |
1582 | immediate recursion. */ | |
1583 | if (recur == s) | |
1584 | return (valueT) s->sy_value.X_add_number; | |
1585 | recur = s; | |
1586 | if (! s->sy_resolved | |
1587 | || s->sy_value.X_op != O_symbol | |
1588 | || (S_IS_DEFINED (s) && ! S_IS_COMMON (s))) | |
1589 | as_bad (_("Attempt to get value of unresolved symbol %s"), | |
1590 | S_GET_NAME (s)); | |
1591 | recur = NULL; | |
1592 | } | |
1593 | return (valueT) s->sy_value.X_add_number; | |
1594 | } | |
1595 | ||
1596 | /* Set the value of a symbol. */ | |
1597 | ||
1598 | void | |
1599 | S_SET_VALUE (s, val) | |
1600 | symbolS *s; | |
1601 | valueT val; | |
1602 | { | |
a1605869 | 1603 | #ifdef BFD_ASSEMBLER |
49309057 ILT |
1604 | if (LOCAL_SYMBOL_CHECK (s)) |
1605 | { | |
1606 | ((struct local_symbol *) s)->lsy_offset = val; | |
1607 | return; | |
1608 | } | |
a1605869 | 1609 | #endif |
49309057 | 1610 | |
252b5132 RH |
1611 | s->sy_value.X_op = O_constant; |
1612 | s->sy_value.X_add_number = (offsetT) val; | |
1613 | s->sy_value.X_unsigned = 0; | |
1614 | } | |
1615 | ||
1616 | void | |
1617 | copy_symbol_attributes (dest, src) | |
1618 | symbolS *dest, *src; | |
1619 | { | |
49309057 | 1620 | if (LOCAL_SYMBOL_CHECK (dest)) |
7f2f689c | 1621 | dest = local_symbol_convert ((struct local_symbol *) dest); |
49309057 | 1622 | if (LOCAL_SYMBOL_CHECK (src)) |
7f2f689c | 1623 | src = local_symbol_convert ((struct local_symbol *) src); |
49309057 | 1624 | |
252b5132 RH |
1625 | #ifdef BFD_ASSEMBLER |
1626 | /* In an expression, transfer the settings of these flags. | |
1627 | The user can override later, of course. */ | |
1628 | #define COPIED_SYMFLAGS (BSF_FUNCTION | BSF_OBJECT) | |
1629 | dest->bsym->flags |= src->bsym->flags & COPIED_SYMFLAGS; | |
1630 | #endif | |
1631 | ||
1632 | #ifdef OBJ_COPY_SYMBOL_ATTRIBUTES | |
1633 | OBJ_COPY_SYMBOL_ATTRIBUTES (dest, src); | |
1634 | #endif | |
1635 | } | |
1636 | ||
1637 | #ifdef BFD_ASSEMBLER | |
1638 | ||
1639 | int | |
1640 | S_IS_FUNCTION (s) | |
1641 | symbolS *s; | |
1642 | { | |
49309057 ILT |
1643 | flagword flags; |
1644 | ||
1645 | if (LOCAL_SYMBOL_CHECK (s)) | |
1646 | return 0; | |
1647 | ||
1648 | flags = s->bsym->flags; | |
252b5132 RH |
1649 | |
1650 | return (flags & BSF_FUNCTION) != 0; | |
1651 | } | |
1652 | ||
1653 | int | |
1654 | S_IS_EXTERNAL (s) | |
1655 | symbolS *s; | |
1656 | { | |
49309057 ILT |
1657 | flagword flags; |
1658 | ||
1659 | if (LOCAL_SYMBOL_CHECK (s)) | |
1660 | return 0; | |
1661 | ||
1662 | flags = s->bsym->flags; | |
252b5132 | 1663 | |
7c743825 | 1664 | /* Sanity check. */ |
252b5132 RH |
1665 | if ((flags & BSF_LOCAL) && (flags & BSF_GLOBAL)) |
1666 | abort (); | |
1667 | ||
1668 | return (flags & BSF_GLOBAL) != 0; | |
1669 | } | |
1670 | ||
1671 | int | |
1672 | S_IS_WEAK (s) | |
1673 | symbolS *s; | |
1674 | { | |
49309057 ILT |
1675 | if (LOCAL_SYMBOL_CHECK (s)) |
1676 | return 0; | |
252b5132 RH |
1677 | return (s->bsym->flags & BSF_WEAK) != 0; |
1678 | } | |
1679 | ||
1680 | int | |
1681 | S_IS_COMMON (s) | |
1682 | symbolS *s; | |
1683 | { | |
49309057 ILT |
1684 | if (LOCAL_SYMBOL_CHECK (s)) |
1685 | return 0; | |
252b5132 RH |
1686 | return bfd_is_com_section (s->bsym->section); |
1687 | } | |
1688 | ||
1689 | int | |
1690 | S_IS_DEFINED (s) | |
1691 | symbolS *s; | |
1692 | { | |
49309057 ILT |
1693 | if (LOCAL_SYMBOL_CHECK (s)) |
1694 | return ((struct local_symbol *) s)->lsy_section != undefined_section; | |
252b5132 RH |
1695 | return s->bsym->section != undefined_section; |
1696 | } | |
1697 | ||
1698 | int | |
1699 | S_IS_DEBUG (s) | |
1700 | symbolS *s; | |
1701 | { | |
49309057 ILT |
1702 | if (LOCAL_SYMBOL_CHECK (s)) |
1703 | return 0; | |
252b5132 RH |
1704 | if (s->bsym->flags & BSF_DEBUGGING) |
1705 | return 1; | |
1706 | return 0; | |
1707 | } | |
1708 | ||
1709 | int | |
1710 | S_IS_LOCAL (s) | |
1711 | symbolS *s; | |
1712 | { | |
49309057 | 1713 | flagword flags; |
252b5132 RH |
1714 | const char *name; |
1715 | ||
49309057 ILT |
1716 | if (LOCAL_SYMBOL_CHECK (s)) |
1717 | return 1; | |
1718 | ||
1719 | flags = s->bsym->flags; | |
1720 | ||
7c743825 | 1721 | /* Sanity check. */ |
252b5132 RH |
1722 | if ((flags & BSF_LOCAL) && (flags & BSF_GLOBAL)) |
1723 | abort (); | |
1724 | ||
1725 | if (bfd_get_section (s->bsym) == reg_section) | |
1726 | return 1; | |
1727 | ||
1728 | if (flag_strip_local_absolute | |
1729 | && (flags & BSF_GLOBAL) == 0 | |
1730 | && bfd_get_section (s->bsym) == absolute_section) | |
1731 | return 1; | |
1732 | ||
1733 | name = S_GET_NAME (s); | |
1734 | return (name != NULL | |
1735 | && ! S_IS_DEBUG (s) | |
aa257fcd NC |
1736 | && (strchr (name, DOLLAR_LABEL_CHAR) |
1737 | || strchr (name, LOCAL_LABEL_CHAR) | |
252b5132 RH |
1738 | || (! flag_keep_locals |
1739 | && (bfd_is_local_label (stdoutput, s->bsym) | |
1740 | || (flag_mri | |
1741 | && name[0] == '?' | |
1742 | && name[1] == '?'))))); | |
1743 | } | |
1744 | ||
1745 | int | |
1746 | S_IS_EXTERN (s) | |
1747 | symbolS *s; | |
1748 | { | |
1749 | return S_IS_EXTERNAL (s); | |
1750 | } | |
1751 | ||
1752 | int | |
1753 | S_IS_STABD (s) | |
1754 | symbolS *s; | |
1755 | { | |
1756 | return S_GET_NAME (s) == 0; | |
1757 | } | |
1758 | ||
1759 | CONST char * | |
1760 | S_GET_NAME (s) | |
1761 | symbolS *s; | |
1762 | { | |
49309057 ILT |
1763 | if (LOCAL_SYMBOL_CHECK (s)) |
1764 | return ((struct local_symbol *) s)->lsy_name; | |
252b5132 RH |
1765 | return s->bsym->name; |
1766 | } | |
1767 | ||
1768 | segT | |
1769 | S_GET_SEGMENT (s) | |
1770 | symbolS *s; | |
1771 | { | |
49309057 ILT |
1772 | if (LOCAL_SYMBOL_CHECK (s)) |
1773 | return ((struct local_symbol *) s)->lsy_section; | |
252b5132 RH |
1774 | return s->bsym->section; |
1775 | } | |
1776 | ||
1777 | void | |
1778 | S_SET_SEGMENT (s, seg) | |
1779 | symbolS *s; | |
1780 | segT seg; | |
1781 | { | |
1782 | /* Don't reassign section symbols. The direct reason is to prevent seg | |
1783 | faults assigning back to const global symbols such as *ABS*, but it | |
1784 | shouldn't happen anyway. */ | |
1785 | ||
49309057 ILT |
1786 | if (LOCAL_SYMBOL_CHECK (s)) |
1787 | { | |
1788 | if (seg == reg_section) | |
1789 | s = local_symbol_convert ((struct local_symbol *) s); | |
1790 | else | |
1791 | { | |
1792 | ((struct local_symbol *) s)->lsy_section = seg; | |
1793 | return; | |
1794 | } | |
1795 | } | |
1796 | ||
252b5132 RH |
1797 | if (s->bsym->flags & BSF_SECTION_SYM) |
1798 | { | |
1799 | if (s->bsym->section != seg) | |
7c743825 | 1800 | abort (); |
252b5132 RH |
1801 | } |
1802 | else | |
1803 | s->bsym->section = seg; | |
1804 | } | |
1805 | ||
1806 | void | |
1807 | S_SET_EXTERNAL (s) | |
1808 | symbolS *s; | |
1809 | { | |
49309057 ILT |
1810 | if (LOCAL_SYMBOL_CHECK (s)) |
1811 | s = local_symbol_convert ((struct local_symbol *) s); | |
252b5132 RH |
1812 | if ((s->bsym->flags & BSF_WEAK) != 0) |
1813 | { | |
1814 | /* Let .weak override .global. */ | |
1815 | return; | |
1816 | } | |
1817 | s->bsym->flags |= BSF_GLOBAL; | |
7c743825 | 1818 | s->bsym->flags &= ~(BSF_LOCAL | BSF_WEAK); |
252b5132 RH |
1819 | } |
1820 | ||
1821 | void | |
1822 | S_CLEAR_EXTERNAL (s) | |
1823 | symbolS *s; | |
1824 | { | |
49309057 ILT |
1825 | if (LOCAL_SYMBOL_CHECK (s)) |
1826 | return; | |
252b5132 RH |
1827 | if ((s->bsym->flags & BSF_WEAK) != 0) |
1828 | { | |
1829 | /* Let .weak override. */ | |
1830 | return; | |
1831 | } | |
1832 | s->bsym->flags |= BSF_LOCAL; | |
7c743825 | 1833 | s->bsym->flags &= ~(BSF_GLOBAL | BSF_WEAK); |
252b5132 RH |
1834 | } |
1835 | ||
1836 | void | |
1837 | S_SET_WEAK (s) | |
1838 | symbolS *s; | |
1839 | { | |
49309057 ILT |
1840 | if (LOCAL_SYMBOL_CHECK (s)) |
1841 | s = local_symbol_convert ((struct local_symbol *) s); | |
252b5132 | 1842 | s->bsym->flags |= BSF_WEAK; |
7c743825 | 1843 | s->bsym->flags &= ~(BSF_GLOBAL | BSF_LOCAL); |
252b5132 RH |
1844 | } |
1845 | ||
1846 | void | |
1847 | S_SET_NAME (s, name) | |
1848 | symbolS *s; | |
1849 | char *name; | |
1850 | { | |
49309057 ILT |
1851 | if (LOCAL_SYMBOL_CHECK (s)) |
1852 | { | |
1853 | ((struct local_symbol *) s)->lsy_name = name; | |
1854 | return; | |
1855 | } | |
252b5132 RH |
1856 | s->bsym->name = name; |
1857 | } | |
1858 | #endif /* BFD_ASSEMBLER */ | |
1859 | ||
49309057 ILT |
1860 | #ifdef SYMBOLS_NEED_BACKPOINTERS |
1861 | ||
1862 | /* Return the previous symbol in a chain. */ | |
1863 | ||
1864 | symbolS * | |
1865 | symbol_previous (s) | |
1866 | symbolS *s; | |
1867 | { | |
1868 | if (LOCAL_SYMBOL_CHECK (s)) | |
1869 | abort (); | |
1870 | return s->sy_previous; | |
1871 | } | |
1872 | ||
1873 | #endif /* SYMBOLS_NEED_BACKPOINTERS */ | |
1874 | ||
1875 | /* Return the next symbol in a chain. */ | |
1876 | ||
1877 | symbolS * | |
1878 | symbol_next (s) | |
1879 | symbolS *s; | |
1880 | { | |
1881 | if (LOCAL_SYMBOL_CHECK (s)) | |
1882 | abort (); | |
1883 | return s->sy_next; | |
1884 | } | |
1885 | ||
1886 | /* Return a pointer to the value of a symbol as an expression. */ | |
1887 | ||
1888 | expressionS * | |
1889 | symbol_get_value_expression (s) | |
1890 | symbolS *s; | |
1891 | { | |
1892 | if (LOCAL_SYMBOL_CHECK (s)) | |
1893 | s = local_symbol_convert ((struct local_symbol *) s); | |
1894 | return &s->sy_value; | |
1895 | } | |
1896 | ||
1897 | /* Set the value of a symbol to an expression. */ | |
1898 | ||
1899 | void | |
1900 | symbol_set_value_expression (s, exp) | |
1901 | symbolS *s; | |
1902 | const expressionS *exp; | |
1903 | { | |
1904 | if (LOCAL_SYMBOL_CHECK (s)) | |
1905 | s = local_symbol_convert ((struct local_symbol *) s); | |
1906 | s->sy_value = *exp; | |
1907 | } | |
1908 | ||
1909 | /* Set the frag of a symbol. */ | |
1910 | ||
1911 | void | |
1912 | symbol_set_frag (s, f) | |
1913 | symbolS *s; | |
1914 | fragS *f; | |
1915 | { | |
a1605869 | 1916 | #ifdef BFD_ASSEMBLER |
49309057 ILT |
1917 | if (LOCAL_SYMBOL_CHECK (s)) |
1918 | { | |
1919 | local_symbol_set_frag ((struct local_symbol *) s, f); | |
1920 | return; | |
1921 | } | |
a1605869 | 1922 | #endif |
49309057 ILT |
1923 | s->sy_frag = f; |
1924 | } | |
1925 | ||
1926 | /* Return the frag of a symbol. */ | |
1927 | ||
1928 | fragS * | |
1929 | symbol_get_frag (s) | |
1930 | symbolS *s; | |
1931 | { | |
a1605869 | 1932 | #ifdef BFD_ASSEMBLER |
49309057 ILT |
1933 | if (LOCAL_SYMBOL_CHECK (s)) |
1934 | return local_symbol_get_frag ((struct local_symbol *) s); | |
a1605869 | 1935 | #endif |
49309057 ILT |
1936 | return s->sy_frag; |
1937 | } | |
1938 | ||
1939 | /* Mark a symbol as having been used. */ | |
1940 | ||
1941 | void | |
1942 | symbol_mark_used (s) | |
1943 | symbolS *s; | |
1944 | { | |
1945 | if (LOCAL_SYMBOL_CHECK (s)) | |
1946 | return; | |
1947 | s->sy_used = 1; | |
1948 | } | |
1949 | ||
1950 | /* Clear the mark of whether a symbol has been used. */ | |
1951 | ||
1952 | void | |
1953 | symbol_clear_used (s) | |
1954 | symbolS *s; | |
1955 | { | |
1956 | if (LOCAL_SYMBOL_CHECK (s)) | |
1957 | s = local_symbol_convert ((struct local_symbol *) s); | |
1958 | s->sy_used = 0; | |
1959 | } | |
1960 | ||
1961 | /* Return whether a symbol has been used. */ | |
1962 | ||
1963 | int | |
1964 | symbol_used_p (s) | |
1965 | symbolS *s; | |
1966 | { | |
1967 | if (LOCAL_SYMBOL_CHECK (s)) | |
1968 | return 1; | |
1969 | return s->sy_used; | |
1970 | } | |
1971 | ||
1972 | /* Mark a symbol as having been used in a reloc. */ | |
1973 | ||
1974 | void | |
1975 | symbol_mark_used_in_reloc (s) | |
1976 | symbolS *s; | |
1977 | { | |
1978 | if (LOCAL_SYMBOL_CHECK (s)) | |
1979 | s = local_symbol_convert ((struct local_symbol *) s); | |
1980 | s->sy_used_in_reloc = 1; | |
1981 | } | |
1982 | ||
1983 | /* Clear the mark of whether a symbol has been used in a reloc. */ | |
1984 | ||
1985 | void | |
1986 | symbol_clear_used_in_reloc (s) | |
1987 | symbolS *s; | |
1988 | { | |
1989 | if (LOCAL_SYMBOL_CHECK (s)) | |
1990 | return; | |
1991 | s->sy_used_in_reloc = 0; | |
1992 | } | |
1993 | ||
1994 | /* Return whether a symbol has been used in a reloc. */ | |
1995 | ||
1996 | int | |
1997 | symbol_used_in_reloc_p (s) | |
1998 | symbolS *s; | |
1999 | { | |
2000 | if (LOCAL_SYMBOL_CHECK (s)) | |
2001 | return 0; | |
2002 | return s->sy_used_in_reloc; | |
2003 | } | |
2004 | ||
2005 | /* Mark a symbol as an MRI common symbol. */ | |
2006 | ||
2007 | void | |
2008 | symbol_mark_mri_common (s) | |
2009 | symbolS *s; | |
2010 | { | |
2011 | if (LOCAL_SYMBOL_CHECK (s)) | |
2012 | s = local_symbol_convert ((struct local_symbol *) s); | |
2013 | s->sy_mri_common = 1; | |
2014 | } | |
2015 | ||
2016 | /* Clear the mark of whether a symbol is an MRI common symbol. */ | |
2017 | ||
2018 | void | |
2019 | symbol_clear_mri_common (s) | |
2020 | symbolS *s; | |
2021 | { | |
2022 | if (LOCAL_SYMBOL_CHECK (s)) | |
2023 | return; | |
2024 | s->sy_mri_common = 0; | |
2025 | } | |
2026 | ||
2027 | /* Return whether a symbol is an MRI common symbol. */ | |
2028 | ||
2029 | int | |
2030 | symbol_mri_common_p (s) | |
2031 | symbolS *s; | |
2032 | { | |
2033 | if (LOCAL_SYMBOL_CHECK (s)) | |
2034 | return 0; | |
2035 | return s->sy_mri_common; | |
2036 | } | |
2037 | ||
2038 | /* Mark a symbol as having been written. */ | |
2039 | ||
2040 | void | |
2041 | symbol_mark_written (s) | |
2042 | symbolS *s; | |
2043 | { | |
2044 | if (LOCAL_SYMBOL_CHECK (s)) | |
2045 | return; | |
2046 | s->written = 1; | |
2047 | } | |
2048 | ||
2049 | /* Clear the mark of whether a symbol has been written. */ | |
2050 | ||
2051 | void | |
2052 | symbol_clear_written (s) | |
2053 | symbolS *s; | |
2054 | { | |
2055 | if (LOCAL_SYMBOL_CHECK (s)) | |
2056 | return; | |
2057 | s->written = 0; | |
2058 | } | |
2059 | ||
2060 | /* Return whether a symbol has been written. */ | |
2061 | ||
2062 | int | |
2063 | symbol_written_p (s) | |
2064 | symbolS *s; | |
2065 | { | |
2066 | if (LOCAL_SYMBOL_CHECK (s)) | |
2067 | return 0; | |
2068 | return s->written; | |
2069 | } | |
2070 | ||
2071 | /* Mark a symbol has having been resolved. */ | |
2072 | ||
2073 | void | |
2074 | symbol_mark_resolved (s) | |
2075 | symbolS *s; | |
2076 | { | |
a1605869 | 2077 | #ifdef BFD_ASSEMBLER |
49309057 ILT |
2078 | if (LOCAL_SYMBOL_CHECK (s)) |
2079 | { | |
2080 | local_symbol_mark_resolved ((struct local_symbol *) s); | |
2081 | return; | |
2082 | } | |
a1605869 | 2083 | #endif |
49309057 ILT |
2084 | s->sy_resolved = 1; |
2085 | } | |
2086 | ||
2087 | /* Return whether a symbol has been resolved. */ | |
2088 | ||
2089 | int | |
2090 | symbol_resolved_p (s) | |
2091 | symbolS *s; | |
2092 | { | |
a1605869 | 2093 | #ifdef BFD_ASSEMBLER |
49309057 ILT |
2094 | if (LOCAL_SYMBOL_CHECK (s)) |
2095 | return local_symbol_resolved_p ((struct local_symbol *) s); | |
a1605869 | 2096 | #endif |
49309057 ILT |
2097 | return s->sy_resolved; |
2098 | } | |
2099 | ||
2100 | /* Return whether a symbol is a section symbol. */ | |
2101 | ||
2102 | int | |
2103 | symbol_section_p (s) | |
a04b544b | 2104 | symbolS *s ATTRIBUTE_UNUSED; |
49309057 ILT |
2105 | { |
2106 | if (LOCAL_SYMBOL_CHECK (s)) | |
2107 | return 0; | |
2108 | #ifdef BFD_ASSEMBLER | |
2109 | return (s->bsym->flags & BSF_SECTION_SYM) != 0; | |
2110 | #else | |
7c743825 | 2111 | /* FIXME. */ |
49309057 ILT |
2112 | return 0; |
2113 | #endif | |
2114 | } | |
2115 | ||
2116 | /* Return whether a symbol is equated to another symbol. */ | |
2117 | ||
2118 | int | |
2119 | symbol_equated_p (s) | |
2120 | symbolS *s; | |
2121 | { | |
2122 | if (LOCAL_SYMBOL_CHECK (s)) | |
2123 | return 0; | |
2124 | return s->sy_value.X_op == O_symbol; | |
2125 | } | |
2126 | ||
2127 | /* Return whether a symbol has a constant value. */ | |
2128 | ||
2129 | int | |
2130 | symbol_constant_p (s) | |
2131 | symbolS *s; | |
2132 | { | |
2133 | if (LOCAL_SYMBOL_CHECK (s)) | |
2134 | return 1; | |
2135 | return s->sy_value.X_op == O_constant; | |
2136 | } | |
2137 | ||
2138 | #ifdef BFD_ASSEMBLER | |
2139 | ||
2140 | /* Return the BFD symbol for a symbol. */ | |
2141 | ||
2142 | asymbol * | |
2143 | symbol_get_bfdsym (s) | |
2144 | symbolS *s; | |
2145 | { | |
2146 | if (LOCAL_SYMBOL_CHECK (s)) | |
2147 | s = local_symbol_convert ((struct local_symbol *) s); | |
2148 | return s->bsym; | |
2149 | } | |
2150 | ||
2151 | /* Set the BFD symbol for a symbol. */ | |
2152 | ||
2153 | void | |
2154 | symbol_set_bfdsym (s, bsym) | |
2155 | symbolS *s; | |
2156 | asymbol *bsym; | |
2157 | { | |
2158 | if (LOCAL_SYMBOL_CHECK (s)) | |
2159 | s = local_symbol_convert ((struct local_symbol *) s); | |
2160 | s->bsym = bsym; | |
2161 | } | |
2162 | ||
2163 | #endif /* BFD_ASSEMBLER */ | |
2164 | ||
2165 | #ifdef OBJ_SYMFIELD_TYPE | |
2166 | ||
2167 | /* Get a pointer to the object format information for a symbol. */ | |
2168 | ||
2169 | OBJ_SYMFIELD_TYPE * | |
2170 | symbol_get_obj (s) | |
2171 | symbolS *s; | |
2172 | { | |
2173 | if (LOCAL_SYMBOL_CHECK (s)) | |
2174 | s = local_symbol_convert ((struct local_symbol *) s); | |
2175 | return &s->sy_obj; | |
2176 | } | |
2177 | ||
2178 | /* Set the object format information for a symbol. */ | |
2179 | ||
2180 | void | |
2181 | symbol_set_obj (s, o) | |
2182 | symbolS *s; | |
2183 | OBJ_SYMFIELD_TYPE *o; | |
2184 | { | |
2185 | if (LOCAL_SYMBOL_CHECK (s)) | |
2186 | s = local_symbol_convert ((struct local_symbol *) s); | |
2187 | s->sy_obj = *o; | |
2188 | } | |
2189 | ||
2190 | #endif /* OBJ_SYMFIELD_TYPE */ | |
2191 | ||
2192 | #ifdef TC_SYMFIELD_TYPE | |
2193 | ||
2194 | /* Get a pointer to the processor information for a symbol. */ | |
2195 | ||
2196 | TC_SYMFIELD_TYPE * | |
2197 | symbol_get_tc (s) | |
2198 | symbolS *s; | |
2199 | { | |
2200 | if (LOCAL_SYMBOL_CHECK (s)) | |
2201 | s = local_symbol_convert ((struct local_symbol *) s); | |
2202 | return &s->sy_tc; | |
2203 | } | |
2204 | ||
2205 | /* Set the processor information for a symbol. */ | |
2206 | ||
2207 | void | |
bf27257e | 2208 | symbol_set_tc (s, o) |
49309057 ILT |
2209 | symbolS *s; |
2210 | TC_SYMFIELD_TYPE *o; | |
2211 | { | |
2212 | if (LOCAL_SYMBOL_CHECK (s)) | |
2213 | s = local_symbol_convert ((struct local_symbol *) s); | |
2214 | s->sy_tc = *o; | |
2215 | } | |
2216 | ||
2217 | #endif /* TC_SYMFIELD_TYPE */ | |
2218 | ||
252b5132 RH |
2219 | void |
2220 | symbol_begin () | |
2221 | { | |
2222 | symbol_lastP = NULL; | |
7c743825 | 2223 | symbol_rootP = NULL; /* In case we have 0 symbols (!!) */ |
252b5132 | 2224 | sy_hash = hash_new (); |
49309057 ILT |
2225 | #ifdef BFD_ASSEMBLER |
2226 | local_hash = hash_new (); | |
2227 | #endif | |
252b5132 RH |
2228 | |
2229 | memset ((char *) (&abs_symbol), '\0', sizeof (abs_symbol)); | |
2230 | #ifdef BFD_ASSEMBLER | |
2231 | #if defined (EMIT_SECTION_SYMBOLS) || !defined (RELOC_REQUIRES_SYMBOL) | |
2232 | abs_symbol.bsym = bfd_abs_section.symbol; | |
2233 | #endif | |
2234 | #else | |
7c743825 | 2235 | /* Can't initialise a union. Sigh. */ |
252b5132 RH |
2236 | S_SET_SEGMENT (&abs_symbol, absolute_section); |
2237 | #endif | |
2238 | abs_symbol.sy_value.X_op = O_constant; | |
2239 | abs_symbol.sy_frag = &zero_address_frag; | |
2240 | ||
2241 | if (LOCAL_LABELS_FB) | |
2242 | fb_label_init (); | |
2243 | } | |
252b5132 RH |
2244 | \f |
2245 | int indent_level; | |
2246 | ||
2247 | /* Maximum indent level. | |
2248 | Available for modification inside a gdb session. */ | |
2249 | int max_indent_level = 8; | |
2250 | ||
2251 | #if 0 | |
2252 | ||
2253 | static void | |
2254 | indent () | |
2255 | { | |
2256 | printf ("%*s", indent_level * 4, ""); | |
2257 | } | |
2258 | ||
2259 | #endif | |
2260 | ||
2261 | void | |
2262 | print_symbol_value_1 (file, sym) | |
2263 | FILE *file; | |
2264 | symbolS *sym; | |
2265 | { | |
2266 | const char *name = S_GET_NAME (sym); | |
2267 | if (!name || !name[0]) | |
2268 | name = "(unnamed)"; | |
2269 | fprintf (file, "sym %lx %s", (unsigned long) sym, name); | |
49309057 ILT |
2270 | |
2271 | if (LOCAL_SYMBOL_CHECK (sym)) | |
2272 | { | |
a1605869 | 2273 | #ifdef BFD_ASSEMBLER |
49309057 ILT |
2274 | struct local_symbol *locsym = (struct local_symbol *) sym; |
2275 | if (local_symbol_get_frag (locsym) != &zero_address_frag | |
2276 | && local_symbol_get_frag (locsym) != NULL) | |
2277 | fprintf (file, " frag %lx", (long) local_symbol_get_frag (locsym)); | |
2278 | if (local_symbol_resolved_p (locsym)) | |
2279 | fprintf (file, " resolved"); | |
2280 | fprintf (file, " local"); | |
a1605869 | 2281 | #endif |
49309057 ILT |
2282 | } |
2283 | else | |
2284 | { | |
2285 | if (sym->sy_frag != &zero_address_frag) | |
2286 | fprintf (file, " frag %lx", (long) sym->sy_frag); | |
2287 | if (sym->written) | |
2288 | fprintf (file, " written"); | |
2289 | if (sym->sy_resolved) | |
2290 | fprintf (file, " resolved"); | |
2291 | else if (sym->sy_resolving) | |
2292 | fprintf (file, " resolving"); | |
2293 | if (sym->sy_used_in_reloc) | |
2294 | fprintf (file, " used-in-reloc"); | |
2295 | if (sym->sy_used) | |
2296 | fprintf (file, " used"); | |
2297 | if (S_IS_LOCAL (sym)) | |
2298 | fprintf (file, " local"); | |
2299 | if (S_IS_EXTERN (sym)) | |
2300 | fprintf (file, " extern"); | |
2301 | if (S_IS_DEBUG (sym)) | |
2302 | fprintf (file, " debug"); | |
2303 | if (S_IS_DEFINED (sym)) | |
2304 | fprintf (file, " defined"); | |
2305 | } | |
252b5132 | 2306 | fprintf (file, " %s", segment_name (S_GET_SEGMENT (sym))); |
49309057 | 2307 | if (symbol_resolved_p (sym)) |
252b5132 RH |
2308 | { |
2309 | segT s = S_GET_SEGMENT (sym); | |
2310 | ||
2311 | if (s != undefined_section | |
2312 | && s != expr_section) | |
2313 | fprintf (file, " %lx", (long) S_GET_VALUE (sym)); | |
2314 | } | |
2315 | else if (indent_level < max_indent_level | |
2316 | && S_GET_SEGMENT (sym) != undefined_section) | |
2317 | { | |
2318 | indent_level++; | |
2319 | fprintf (file, "\n%*s<", indent_level * 4, ""); | |
a1605869 | 2320 | #ifdef BFD_ASSEMBLER |
49309057 ILT |
2321 | if (LOCAL_SYMBOL_CHECK (sym)) |
2322 | fprintf (file, "constant %lx", | |
2323 | (long) ((struct local_symbol *) sym)->lsy_offset); | |
2324 | else | |
a1605869 | 2325 | #endif |
49309057 | 2326 | print_expr_1 (file, &sym->sy_value); |
252b5132 RH |
2327 | fprintf (file, ">"); |
2328 | indent_level--; | |
2329 | } | |
2330 | fflush (file); | |
2331 | } | |
2332 | ||
2333 | void | |
2334 | print_symbol_value (sym) | |
2335 | symbolS *sym; | |
2336 | { | |
2337 | indent_level = 0; | |
2338 | print_symbol_value_1 (stderr, sym); | |
2339 | fprintf (stderr, "\n"); | |
2340 | } | |
2341 | ||
2342 | static void | |
2343 | print_binary (file, name, exp) | |
2344 | FILE *file; | |
7c743825 | 2345 | const char *name; |
252b5132 RH |
2346 | expressionS *exp; |
2347 | { | |
2348 | indent_level++; | |
2349 | fprintf (file, "%s\n%*s<", name, indent_level * 4, ""); | |
2350 | print_symbol_value_1 (file, exp->X_add_symbol); | |
2351 | fprintf (file, ">\n%*s<", indent_level * 4, ""); | |
2352 | print_symbol_value_1 (file, exp->X_op_symbol); | |
2353 | fprintf (file, ">"); | |
2354 | indent_level--; | |
2355 | } | |
2356 | ||
2357 | void | |
2358 | print_expr_1 (file, exp) | |
2359 | FILE *file; | |
2360 | expressionS *exp; | |
2361 | { | |
2362 | fprintf (file, "expr %lx ", (long) exp); | |
2363 | switch (exp->X_op) | |
2364 | { | |
2365 | case O_illegal: | |
2366 | fprintf (file, "illegal"); | |
2367 | break; | |
2368 | case O_absent: | |
2369 | fprintf (file, "absent"); | |
2370 | break; | |
2371 | case O_constant: | |
2372 | fprintf (file, "constant %lx", (long) exp->X_add_number); | |
2373 | break; | |
2374 | case O_symbol: | |
2375 | indent_level++; | |
2376 | fprintf (file, "symbol\n%*s<", indent_level * 4, ""); | |
2377 | print_symbol_value_1 (file, exp->X_add_symbol); | |
2378 | fprintf (file, ">"); | |
2379 | maybe_print_addnum: | |
2380 | if (exp->X_add_number) | |
2381 | fprintf (file, "\n%*s%lx", indent_level * 4, "", | |
2382 | (long) exp->X_add_number); | |
2383 | indent_level--; | |
2384 | break; | |
2385 | case O_register: | |
2386 | fprintf (file, "register #%d", (int) exp->X_add_number); | |
2387 | break; | |
2388 | case O_big: | |
2389 | fprintf (file, "big"); | |
2390 | break; | |
2391 | case O_uminus: | |
2392 | fprintf (file, "uminus -<"); | |
2393 | indent_level++; | |
2394 | print_symbol_value_1 (file, exp->X_add_symbol); | |
2395 | fprintf (file, ">"); | |
2396 | goto maybe_print_addnum; | |
2397 | case O_bit_not: | |
2398 | fprintf (file, "bit_not"); | |
2399 | break; | |
2400 | case O_multiply: | |
2401 | print_binary (file, "multiply", exp); | |
2402 | break; | |
2403 | case O_divide: | |
2404 | print_binary (file, "divide", exp); | |
2405 | break; | |
2406 | case O_modulus: | |
2407 | print_binary (file, "modulus", exp); | |
2408 | break; | |
2409 | case O_left_shift: | |
2410 | print_binary (file, "lshift", exp); | |
2411 | break; | |
2412 | case O_right_shift: | |
2413 | print_binary (file, "rshift", exp); | |
2414 | break; | |
2415 | case O_bit_inclusive_or: | |
2416 | print_binary (file, "bit_ior", exp); | |
2417 | break; | |
2418 | case O_bit_exclusive_or: | |
2419 | print_binary (file, "bit_xor", exp); | |
2420 | break; | |
2421 | case O_bit_and: | |
2422 | print_binary (file, "bit_and", exp); | |
2423 | break; | |
2424 | case O_eq: | |
2425 | print_binary (file, "eq", exp); | |
2426 | break; | |
2427 | case O_ne: | |
2428 | print_binary (file, "ne", exp); | |
2429 | break; | |
2430 | case O_lt: | |
2431 | print_binary (file, "lt", exp); | |
2432 | break; | |
2433 | case O_le: | |
2434 | print_binary (file, "le", exp); | |
2435 | break; | |
2436 | case O_ge: | |
2437 | print_binary (file, "ge", exp); | |
2438 | break; | |
2439 | case O_gt: | |
2440 | print_binary (file, "gt", exp); | |
2441 | break; | |
2442 | case O_logical_and: | |
2443 | print_binary (file, "logical_and", exp); | |
2444 | break; | |
2445 | case O_logical_or: | |
2446 | print_binary (file, "logical_or", exp); | |
2447 | break; | |
2448 | case O_add: | |
2449 | indent_level++; | |
2450 | fprintf (file, "add\n%*s<", indent_level * 4, ""); | |
2451 | print_symbol_value_1 (file, exp->X_add_symbol); | |
2452 | fprintf (file, ">\n%*s<", indent_level * 4, ""); | |
2453 | print_symbol_value_1 (file, exp->X_op_symbol); | |
2454 | fprintf (file, ">"); | |
2455 | goto maybe_print_addnum; | |
2456 | case O_subtract: | |
2457 | indent_level++; | |
2458 | fprintf (file, "subtract\n%*s<", indent_level * 4, ""); | |
2459 | print_symbol_value_1 (file, exp->X_add_symbol); | |
2460 | fprintf (file, ">\n%*s<", indent_level * 4, ""); | |
2461 | print_symbol_value_1 (file, exp->X_op_symbol); | |
2462 | fprintf (file, ">"); | |
2463 | goto maybe_print_addnum; | |
2464 | default: | |
2465 | fprintf (file, "{unknown opcode %d}", (int) exp->X_op); | |
2466 | break; | |
2467 | } | |
2468 | fflush (stdout); | |
2469 | } | |
2470 | ||
2471 | void | |
2472 | print_expr (exp) | |
2473 | expressionS *exp; | |
2474 | { | |
2475 | print_expr_1 (stderr, exp); | |
2476 | fprintf (stderr, "\n"); | |
2477 | } | |
2478 | ||
2479 | void | |
2480 | symbol_print_statistics (file) | |
2481 | FILE *file; | |
2482 | { | |
2483 | hash_print_statistics (file, "symbol table", sy_hash); | |
49309057 ILT |
2484 | #ifdef BFD_ASSEMBLER |
2485 | hash_print_statistics (file, "mini local symbol table", local_hash); | |
2486 | fprintf (file, "%lu mini local symbols created, %lu converted\n", | |
2487 | local_symbol_count, local_symbol_conversion_count); | |
2488 | #endif | |
252b5132 | 2489 | } |