Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* symbols.c -symbol table- |
f7e42eb4 NC |
2 | Copyright 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, |
3 | 1999, 2000, 2001 | |
252b5132 RH |
4 | Free Software Foundation, Inc. |
5 | ||
6 | This file is part of GAS, the GNU Assembler. | |
7 | ||
8 | GAS is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2, or (at your option) | |
11 | any later version. | |
12 | ||
13 | GAS is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GAS; see the file COPYING. If not, write to the Free | |
20 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
21 | 02111-1307, USA. */ | |
22 | ||
7c743825 | 23 | /* #define DEBUG_SYMS / * to debug symbol list maintenance. */ |
252b5132 RH |
24 | |
25 | #include <ctype.h> | |
26 | ||
27 | #include "as.h" | |
28 | ||
29 | #include "obstack.h" /* For "symbols.h" */ | |
30 | #include "subsegs.h" | |
31 | ||
49309057 ILT |
32 | #include "struc-symbol.h" |
33 | ||
252b5132 RH |
34 | /* This is non-zero if symbols are case sensitive, which is the |
35 | default. */ | |
36 | int symbols_case_sensitive = 1; | |
37 | ||
38 | #ifndef WORKING_DOT_WORD | |
39 | extern int new_broken_words; | |
40 | #endif | |
41 | ||
42 | /* symbol-name => struct symbol pointer */ | |
43 | static struct hash_control *sy_hash; | |
44 | ||
49309057 ILT |
45 | /* Table of local symbols. */ |
46 | static struct hash_control *local_hash; | |
47 | ||
7c743825 | 48 | /* Below are commented in "symbols.h". */ |
252b5132 RH |
49 | symbolS *symbol_rootP; |
50 | symbolS *symbol_lastP; | |
51 | symbolS abs_symbol; | |
52 | ||
53 | #ifdef DEBUG_SYMS | |
54 | #define debug_verify_symchain verify_symbol_chain | |
55 | #else | |
56 | #define debug_verify_symchain(root, last) ((void) 0) | |
57 | #endif | |
58 | ||
aa257fcd NC |
59 | #define DOLLAR_LABEL_CHAR '\001' |
60 | #define LOCAL_LABEL_CHAR '\002' | |
61 | ||
252b5132 RH |
62 | struct obstack notes; |
63 | ||
64 | static void fb_label_init PARAMS ((void)); | |
65 | static long dollar_label_instance PARAMS ((long)); | |
66 | static long fb_label_instance PARAMS ((long)); | |
67 | ||
68 | static void print_binary PARAMS ((FILE *, const char *, expressionS *)); | |
69 | ||
7c743825 | 70 | /* Return a pointer to a new symbol. Die if we can't make a new |
252b5132 RH |
71 | symbol. Fill in the symbol's values. Add symbol to end of symbol |
72 | chain. | |
7c743825 | 73 | |
252b5132 RH |
74 | This function should be called in the general case of creating a |
75 | symbol. However, if the output file symbol table has already been | |
76 | set, and you are certain that this symbol won't be wanted in the | |
77 | output file, you can call symbol_create. */ | |
78 | ||
79 | symbolS * | |
80 | symbol_new (name, segment, valu, frag) | |
81 | const char *name; | |
82 | segT segment; | |
83 | valueT valu; | |
84 | fragS *frag; | |
85 | { | |
86 | symbolS *symbolP = symbol_create (name, segment, valu, frag); | |
87 | ||
7c743825 | 88 | /* Link to end of symbol chain. */ |
252b5132 RH |
89 | #ifdef BFD_ASSEMBLER |
90 | { | |
91 | extern int symbol_table_frozen; | |
92 | if (symbol_table_frozen) | |
93 | abort (); | |
94 | } | |
95 | #endif | |
96 | symbol_append (symbolP, symbol_lastP, &symbol_rootP, &symbol_lastP); | |
97 | ||
98 | return symbolP; | |
99 | } | |
100 | ||
49309057 ILT |
101 | /* Save a symbol name on a permanent obstack, and convert it according |
102 | to the object file format. */ | |
103 | ||
104 | static char * | |
105 | save_symbol_name (name) | |
106 | const char *name; | |
252b5132 RH |
107 | { |
108 | unsigned int name_length; | |
49309057 | 109 | char *ret; |
252b5132 | 110 | |
7c743825 | 111 | name_length = strlen (name) + 1; /* +1 for \0. */ |
252b5132 | 112 | obstack_grow (¬es, name, name_length); |
49309057 ILT |
113 | ret = obstack_finish (¬es); |
114 | ||
252b5132 | 115 | #ifdef STRIP_UNDERSCORE |
49309057 ILT |
116 | if (ret[0] == '_') |
117 | ++ret; | |
252b5132 RH |
118 | #endif |
119 | ||
120 | #ifdef tc_canonicalize_symbol_name | |
49309057 | 121 | ret = tc_canonicalize_symbol_name (ret); |
252b5132 RH |
122 | #endif |
123 | ||
124 | if (! symbols_case_sensitive) | |
125 | { | |
126 | unsigned char *s; | |
127 | ||
49309057 | 128 | for (s = (unsigned char *) ret; *s != '\0'; s++) |
252b5132 RH |
129 | if (islower (*s)) |
130 | *s = toupper (*s); | |
131 | } | |
132 | ||
49309057 ILT |
133 | return ret; |
134 | } | |
135 | ||
136 | symbolS * | |
137 | symbol_create (name, segment, valu, frag) | |
7c743825 KH |
138 | const char *name; /* It is copied, the caller can destroy/modify. */ |
139 | segT segment; /* Segment identifier (SEG_<something>). */ | |
140 | valueT valu; /* Symbol value. */ | |
141 | fragS *frag; /* Associated fragment. */ | |
49309057 ILT |
142 | { |
143 | char *preserved_copy_of_name; | |
144 | symbolS *symbolP; | |
145 | ||
146 | preserved_copy_of_name = save_symbol_name (name); | |
147 | ||
252b5132 RH |
148 | symbolP = (symbolS *) obstack_alloc (¬es, sizeof (symbolS)); |
149 | ||
7c743825 | 150 | /* symbol must be born in some fixed state. This seems as good as any. */ |
252b5132 RH |
151 | memset (symbolP, 0, sizeof (symbolS)); |
152 | ||
153 | #ifdef BFD_ASSEMBLER | |
154 | symbolP->bsym = bfd_make_empty_symbol (stdoutput); | |
155 | if (symbolP->bsym == NULL) | |
156 | as_perror ("%s", "bfd_make_empty_symbol"); | |
157 | symbolP->bsym->udata.p = (PTR) symbolP; | |
158 | #endif | |
159 | S_SET_NAME (symbolP, preserved_copy_of_name); | |
160 | ||
161 | S_SET_SEGMENT (symbolP, segment); | |
162 | S_SET_VALUE (symbolP, valu); | |
163 | symbol_clear_list_pointers (symbolP); | |
164 | ||
165 | symbolP->sy_frag = frag; | |
166 | #ifndef BFD_ASSEMBLER | |
167 | symbolP->sy_number = ~0; | |
168 | symbolP->sy_name_offset = (unsigned int) ~0; | |
169 | #endif | |
170 | ||
171 | obj_symbol_new_hook (symbolP); | |
172 | ||
173 | #ifdef tc_symbol_new_hook | |
174 | tc_symbol_new_hook (symbolP); | |
175 | #endif | |
176 | ||
177 | return symbolP; | |
178 | } | |
179 | \f | |
49309057 ILT |
180 | #ifdef BFD_ASSEMBLER |
181 | ||
182 | /* Local symbol support. If we can get away with it, we keep only a | |
183 | small amount of information for local symbols. */ | |
184 | ||
185 | static struct local_symbol *local_symbol_make PARAMS ((const char *, segT, | |
186 | valueT, fragS *)); | |
187 | static symbolS *local_symbol_convert PARAMS ((struct local_symbol *)); | |
188 | ||
189 | /* Used for statistics. */ | |
190 | ||
191 | static unsigned long local_symbol_count; | |
192 | static unsigned long local_symbol_conversion_count; | |
193 | ||
194 | /* This macro is called with a symbol argument passed by reference. | |
195 | It returns whether this is a local symbol. If necessary, it | |
196 | changes its argument to the real symbol. */ | |
197 | ||
198 | #define LOCAL_SYMBOL_CHECK(s) \ | |
199 | (s->bsym == NULL \ | |
200 | ? (local_symbol_converted_p ((struct local_symbol *) s) \ | |
201 | ? (s = local_symbol_get_real_symbol ((struct local_symbol *) s), \ | |
202 | 0) \ | |
203 | : 1) \ | |
204 | : 0) | |
205 | ||
206 | /* Create a local symbol and insert it into the local hash table. */ | |
207 | ||
208 | static struct local_symbol * | |
209 | local_symbol_make (name, section, offset, frag) | |
210 | const char *name; | |
211 | segT section; | |
212 | valueT offset; | |
213 | fragS *frag; | |
214 | { | |
215 | char *name_copy; | |
216 | struct local_symbol *ret; | |
217 | ||
218 | ++local_symbol_count; | |
219 | ||
220 | name_copy = save_symbol_name (name); | |
221 | ||
222 | ret = (struct local_symbol *) obstack_alloc (¬es, sizeof *ret); | |
223 | ret->lsy_marker = NULL; | |
224 | ret->lsy_name = name_copy; | |
225 | ret->lsy_section = section; | |
226 | local_symbol_set_frag (ret, frag); | |
227 | ret->lsy_offset = offset; | |
228 | ||
229 | hash_jam (local_hash, name_copy, (PTR) ret); | |
230 | ||
231 | return ret; | |
232 | } | |
233 | ||
234 | /* Convert a local symbol into a real symbol. Note that we do not | |
235 | reclaim the space used by the local symbol. */ | |
236 | ||
237 | static symbolS * | |
238 | local_symbol_convert (locsym) | |
239 | struct local_symbol *locsym; | |
240 | { | |
241 | symbolS *ret; | |
242 | ||
243 | assert (locsym->lsy_marker == NULL); | |
244 | if (local_symbol_converted_p (locsym)) | |
245 | return local_symbol_get_real_symbol (locsym); | |
246 | ||
247 | ++local_symbol_conversion_count; | |
248 | ||
249 | ret = symbol_new (locsym->lsy_name, locsym->lsy_section, locsym->lsy_offset, | |
250 | local_symbol_get_frag (locsym)); | |
251 | ||
252 | if (local_symbol_resolved_p (locsym)) | |
253 | ret->sy_resolved = 1; | |
254 | ||
255 | /* Local symbols are always either defined or used. */ | |
256 | ret->sy_used = 1; | |
257 | ||
258 | symbol_table_insert (ret); | |
259 | ||
260 | local_symbol_mark_converted (locsym); | |
261 | local_symbol_set_real_symbol (locsym, ret); | |
262 | ||
263 | hash_jam (local_hash, locsym->lsy_name, NULL); | |
264 | ||
265 | return ret; | |
266 | } | |
267 | ||
268 | #else /* ! BFD_ASSEMBLER */ | |
269 | ||
270 | #define LOCAL_SYMBOL_CHECK(s) 0 | |
271 | #define local_symbol_convert(s) ((symbolS *) s) | |
272 | ||
273 | #endif /* ! BFD_ASSEMBLER */ | |
274 | \f | |
7c743825 KH |
275 | /* We have just seen "<name>:". |
276 | Creates a struct symbol unless it already exists. | |
277 | ||
278 | Gripes if we are redefining a symbol incompatibly (and ignores it). */ | |
252b5132 | 279 | |
252b5132 | 280 | symbolS * |
7c743825 KH |
281 | colon (sym_name) /* Just seen "x:" - rattle symbols & frags. */ |
282 | const char *sym_name; /* Symbol name, as a cannonical string. */ | |
283 | /* We copy this string: OK to alter later. */ | |
252b5132 | 284 | { |
7c743825 | 285 | register symbolS *symbolP; /* Symbol we are working with. */ |
252b5132 RH |
286 | |
287 | /* Sun local labels go out of scope whenever a non-local symbol is | |
288 | defined. */ | |
289 | if (LOCAL_LABELS_DOLLAR) | |
290 | { | |
291 | int local; | |
292 | ||
293 | #ifdef BFD_ASSEMBLER | |
294 | local = bfd_is_local_label_name (stdoutput, sym_name); | |
295 | #else | |
296 | local = LOCAL_LABEL (sym_name); | |
297 | #endif | |
298 | ||
299 | if (! local) | |
300 | dollar_label_clear (); | |
301 | } | |
302 | ||
303 | #ifndef WORKING_DOT_WORD | |
304 | if (new_broken_words) | |
305 | { | |
306 | struct broken_word *a; | |
307 | int possible_bytes; | |
308 | fragS *frag_tmp; | |
309 | char *frag_opcode; | |
310 | ||
311 | extern const int md_short_jump_size; | |
312 | extern const int md_long_jump_size; | |
313 | possible_bytes = (md_short_jump_size | |
314 | + new_broken_words * md_long_jump_size); | |
315 | ||
316 | frag_tmp = frag_now; | |
317 | frag_opcode = frag_var (rs_broken_word, | |
318 | possible_bytes, | |
319 | possible_bytes, | |
320 | (relax_substateT) 0, | |
321 | (symbolS *) broken_words, | |
322 | (offsetT) 0, | |
323 | NULL); | |
324 | ||
7c743825 KH |
325 | /* We want to store the pointer to where to insert the jump |
326 | table in the fr_opcode of the rs_broken_word frag. This | |
327 | requires a little hackery. */ | |
252b5132 RH |
328 | while (frag_tmp |
329 | && (frag_tmp->fr_type != rs_broken_word | |
330 | || frag_tmp->fr_opcode)) | |
331 | frag_tmp = frag_tmp->fr_next; | |
332 | know (frag_tmp); | |
333 | frag_tmp->fr_opcode = frag_opcode; | |
334 | new_broken_words = 0; | |
335 | ||
336 | for (a = broken_words; a && a->dispfrag == 0; a = a->next_broken_word) | |
337 | a->dispfrag = frag_tmp; | |
338 | } | |
339 | #endif /* WORKING_DOT_WORD */ | |
340 | ||
341 | if ((symbolP = symbol_find (sym_name)) != 0) | |
342 | { | |
343 | #ifdef RESOLVE_SYMBOL_REDEFINITION | |
344 | if (RESOLVE_SYMBOL_REDEFINITION (symbolP)) | |
345 | return symbolP; | |
346 | #endif | |
7c743825 | 347 | /* Now check for undefined symbols. */ |
49309057 ILT |
348 | if (LOCAL_SYMBOL_CHECK (symbolP)) |
349 | { | |
a1605869 | 350 | #ifdef BFD_ASSEMBLER |
49309057 ILT |
351 | struct local_symbol *locsym = (struct local_symbol *) symbolP; |
352 | ||
353 | if (locsym->lsy_section != undefined_section | |
354 | && (local_symbol_get_frag (locsym) != frag_now | |
355 | || locsym->lsy_section != now_seg | |
356 | || locsym->lsy_offset != frag_now_fix ())) | |
357 | { | |
358 | as_bad (_("Symbol %s already defined."), sym_name); | |
359 | return symbolP; | |
360 | } | |
361 | ||
362 | locsym->lsy_section = now_seg; | |
363 | local_symbol_set_frag (locsym, frag_now); | |
364 | locsym->lsy_offset = frag_now_fix (); | |
a1605869 | 365 | #endif |
49309057 ILT |
366 | } |
367 | else if (!S_IS_DEFINED (symbolP) || S_IS_COMMON (symbolP)) | |
252b5132 RH |
368 | { |
369 | if (S_GET_VALUE (symbolP) == 0) | |
370 | { | |
371 | symbolP->sy_frag = frag_now; | |
372 | #ifdef OBJ_VMS | |
7c743825 | 373 | S_SET_OTHER (symbolP, const_flag); |
252b5132 RH |
374 | #endif |
375 | S_SET_VALUE (symbolP, (valueT) frag_now_fix ()); | |
376 | S_SET_SEGMENT (symbolP, now_seg); | |
377 | #ifdef N_UNDF | |
378 | know (N_UNDF == 0); | |
7c743825 | 379 | #endif /* if we have one, it better be zero. */ |
252b5132 RH |
380 | |
381 | } | |
382 | else | |
383 | { | |
7c743825 KH |
384 | /* There are still several cases to check: |
385 | ||
386 | A .comm/.lcomm symbol being redefined as initialized | |
387 | data is OK | |
388 | ||
389 | A .comm/.lcomm symbol being redefined with a larger | |
390 | size is also OK | |
391 | ||
392 | This only used to be allowed on VMS gas, but Sun cc | |
393 | on the sparc also depends on it. */ | |
252b5132 RH |
394 | |
395 | if (((!S_IS_DEBUG (symbolP) | |
396 | && (!S_IS_DEFINED (symbolP) || S_IS_COMMON (symbolP)) | |
397 | && S_IS_EXTERNAL (symbolP)) | |
398 | || S_GET_SEGMENT (symbolP) == bss_section) | |
399 | && (now_seg == data_section | |
400 | || now_seg == S_GET_SEGMENT (symbolP))) | |
401 | { | |
7c743825 | 402 | /* Select which of the 2 cases this is. */ |
252b5132 RH |
403 | if (now_seg != data_section) |
404 | { | |
7c743825 KH |
405 | /* New .comm for prev .comm symbol. |
406 | ||
407 | If the new size is larger we just change its | |
408 | value. If the new size is smaller, we ignore | |
409 | this symbol. */ | |
252b5132 RH |
410 | if (S_GET_VALUE (symbolP) |
411 | < ((unsigned) frag_now_fix ())) | |
412 | { | |
413 | S_SET_VALUE (symbolP, (valueT) frag_now_fix ()); | |
414 | } | |
415 | } | |
416 | else | |
417 | { | |
418 | /* It is a .comm/.lcomm being converted to initialized | |
419 | data. */ | |
420 | symbolP->sy_frag = frag_now; | |
421 | #ifdef OBJ_VMS | |
7c743825 | 422 | S_SET_OTHER (symbolP, const_flag); |
252b5132 RH |
423 | #endif |
424 | S_SET_VALUE (symbolP, (valueT) frag_now_fix ()); | |
7c743825 | 425 | S_SET_SEGMENT (symbolP, now_seg); /* Keep N_EXT bit. */ |
252b5132 RH |
426 | } |
427 | } | |
428 | else | |
429 | { | |
4c63da97 AM |
430 | #if (!defined (OBJ_AOUT) && !defined (OBJ_MAYBE_AOUT) \ |
431 | && !defined (OBJ_BOUT) && !defined (OBJ_MAYBE_BOUT)) | |
432 | static const char *od_buf = ""; | |
252b5132 | 433 | #else |
4c63da97 AM |
434 | char od_buf[100]; |
435 | od_buf[0] = '\0'; | |
436 | #ifdef BFD_ASSEMBLER | |
437 | if (OUTPUT_FLAVOR == bfd_target_aout_flavour) | |
438 | #endif | |
439 | sprintf(od_buf, "%d.%d.", | |
440 | S_GET_OTHER (symbolP), | |
441 | S_GET_DESC (symbolP)); | |
442 | #endif | |
d4887adc | 443 | as_bad (_("Symbol \"%s\" is already defined as \"%s\"/%s%ld."), |
252b5132 RH |
444 | sym_name, |
445 | segment_name (S_GET_SEGMENT (symbolP)), | |
4c63da97 | 446 | od_buf, |
252b5132 | 447 | (long) S_GET_VALUE (symbolP)); |
252b5132 | 448 | } |
7c743825 | 449 | } /* if the undefined symbol has no value */ |
252b5132 RH |
450 | } |
451 | else | |
452 | { | |
7c743825 | 453 | /* Don't blow up if the definition is the same. */ |
252b5132 RH |
454 | if (!(frag_now == symbolP->sy_frag |
455 | && S_GET_VALUE (symbolP) == frag_now_fix () | |
456 | && S_GET_SEGMENT (symbolP) == now_seg)) | |
d4887adc NC |
457 | as_bad (_("Symbol %s already defined."), sym_name); |
458 | } | |
252b5132 RH |
459 | |
460 | } | |
49309057 ILT |
461 | #ifdef BFD_ASSEMBLER |
462 | else if (! flag_keep_locals && bfd_is_local_label_name (stdoutput, sym_name)) | |
463 | { | |
464 | symbolP = (symbolS *) local_symbol_make (sym_name, now_seg, | |
465 | (valueT) frag_now_fix (), | |
466 | frag_now); | |
467 | } | |
468 | #endif /* BFD_ASSEMBLER */ | |
252b5132 RH |
469 | else |
470 | { | |
471 | symbolP = symbol_new (sym_name, now_seg, (valueT) frag_now_fix (), | |
472 | frag_now); | |
473 | #ifdef OBJ_VMS | |
474 | S_SET_OTHER (symbolP, const_flag); | |
475 | #endif /* OBJ_VMS */ | |
476 | ||
477 | symbol_table_insert (symbolP); | |
d4887adc | 478 | } |
252b5132 RH |
479 | |
480 | if (mri_common_symbol != NULL) | |
481 | { | |
482 | /* This symbol is actually being defined within an MRI common | |
483 | section. This requires special handling. */ | |
49309057 ILT |
484 | if (LOCAL_SYMBOL_CHECK (symbolP)) |
485 | symbolP = local_symbol_convert ((struct local_symbol *) symbolP); | |
252b5132 RH |
486 | symbolP->sy_value.X_op = O_symbol; |
487 | symbolP->sy_value.X_add_symbol = mri_common_symbol; | |
488 | symbolP->sy_value.X_add_number = S_GET_VALUE (mri_common_symbol); | |
489 | symbolP->sy_frag = &zero_address_frag; | |
490 | S_SET_SEGMENT (symbolP, expr_section); | |
491 | symbolP->sy_mri_common = 1; | |
492 | } | |
493 | ||
494 | #ifdef tc_frob_label | |
495 | tc_frob_label (symbolP); | |
496 | #endif | |
497 | #ifdef obj_frob_label | |
498 | obj_frob_label (symbolP); | |
499 | #endif | |
500 | ||
501 | return symbolP; | |
502 | } | |
503 | \f | |
7c743825 | 504 | /* Die if we can't insert the symbol. */ |
252b5132 | 505 | |
7c743825 | 506 | void |
252b5132 RH |
507 | symbol_table_insert (symbolP) |
508 | symbolS *symbolP; | |
509 | { | |
510 | register const char *error_string; | |
511 | ||
512 | know (symbolP); | |
513 | know (S_GET_NAME (symbolP)); | |
514 | ||
49309057 ILT |
515 | if (LOCAL_SYMBOL_CHECK (symbolP)) |
516 | { | |
517 | error_string = hash_jam (local_hash, S_GET_NAME (symbolP), | |
518 | (PTR) symbolP); | |
519 | if (error_string != NULL) | |
520 | as_fatal (_("Inserting \"%s\" into symbol table failed: %s"), | |
521 | S_GET_NAME (symbolP), error_string); | |
522 | return; | |
523 | } | |
524 | ||
252b5132 RH |
525 | if ((error_string = hash_jam (sy_hash, S_GET_NAME (symbolP), (PTR) symbolP))) |
526 | { | |
527 | as_fatal (_("Inserting \"%s\" into symbol table failed: %s"), | |
528 | S_GET_NAME (symbolP), error_string); | |
7c743825 KH |
529 | } /* on error */ |
530 | } | |
252b5132 | 531 | \f |
7c743825 KH |
532 | /* If a symbol name does not exist, create it as undefined, and insert |
533 | it into the symbol table. Return a pointer to it. */ | |
534 | ||
252b5132 RH |
535 | symbolS * |
536 | symbol_find_or_make (name) | |
537 | const char *name; | |
538 | { | |
539 | register symbolS *symbolP; | |
540 | ||
541 | symbolP = symbol_find (name); | |
542 | ||
543 | if (symbolP == NULL) | |
544 | { | |
49309057 ILT |
545 | #ifdef BFD_ASSEMBLER |
546 | if (! flag_keep_locals && bfd_is_local_label_name (stdoutput, name)) | |
547 | { | |
548 | symbolP = md_undefined_symbol ((char *) name); | |
549 | if (symbolP != NULL) | |
550 | return symbolP; | |
551 | ||
552 | symbolP = (symbolS *) local_symbol_make (name, undefined_section, | |
553 | (valueT) 0, | |
554 | &zero_address_frag); | |
555 | return symbolP; | |
556 | } | |
557 | #endif | |
558 | ||
252b5132 RH |
559 | symbolP = symbol_make (name); |
560 | ||
561 | symbol_table_insert (symbolP); | |
562 | } /* if symbol wasn't found */ | |
563 | ||
564 | return (symbolP); | |
7c743825 | 565 | } |
252b5132 RH |
566 | |
567 | symbolS * | |
568 | symbol_make (name) | |
569 | CONST char *name; | |
570 | { | |
571 | symbolS *symbolP; | |
572 | ||
7c743825 | 573 | /* Let the machine description default it, e.g. for register names. */ |
252b5132 RH |
574 | symbolP = md_undefined_symbol ((char *) name); |
575 | ||
576 | if (!symbolP) | |
577 | symbolP = symbol_new (name, undefined_section, (valueT) 0, &zero_address_frag); | |
578 | ||
579 | return (symbolP); | |
7c743825 | 580 | } |
252b5132 | 581 | |
7c743825 KH |
582 | /* Implement symbol table lookup. |
583 | In: A symbol's name as a string: '\0' can't be part of a symbol name. | |
584 | Out: NULL if the name was not in the symbol table, else the address | |
585 | of a struct symbol associated with that name. */ | |
252b5132 RH |
586 | |
587 | symbolS * | |
588 | symbol_find (name) | |
589 | CONST char *name; | |
590 | { | |
591 | #ifdef STRIP_UNDERSCORE | |
592 | return (symbol_find_base (name, 1)); | |
593 | #else /* STRIP_UNDERSCORE */ | |
594 | return (symbol_find_base (name, 0)); | |
595 | #endif /* STRIP_UNDERSCORE */ | |
7c743825 | 596 | } |
252b5132 RH |
597 | |
598 | symbolS * | |
599 | symbol_find_base (name, strip_underscore) | |
600 | CONST char *name; | |
601 | int strip_underscore; | |
602 | { | |
603 | if (strip_underscore && *name == '_') | |
604 | name++; | |
605 | ||
606 | #ifdef tc_canonicalize_symbol_name | |
607 | { | |
608 | char *copy; | |
03987ced | 609 | size_t len = strlen (name) + 1; |
252b5132 | 610 | |
03987ced RH |
611 | copy = (char *) alloca (len); |
612 | memcpy (copy, name, len); | |
252b5132 RH |
613 | name = tc_canonicalize_symbol_name (copy); |
614 | } | |
615 | #endif | |
616 | ||
617 | if (! symbols_case_sensitive) | |
618 | { | |
03987ced RH |
619 | char *copy; |
620 | const char *orig; | |
621 | unsigned char c; | |
622 | ||
623 | orig = name; | |
624 | name = copy = (char *) alloca (strlen (name) + 1); | |
625 | ||
626 | while ((c = *orig++) != '\0') | |
627 | { | |
628 | if (islower (c)) | |
629 | c = toupper (c); | |
630 | *copy++ = c; | |
631 | } | |
632 | *copy = '\0'; | |
252b5132 RH |
633 | } |
634 | ||
a1605869 ILT |
635 | #ifdef BFD_ASSEMBLER |
636 | { | |
637 | struct local_symbol *locsym; | |
638 | ||
639 | locsym = (struct local_symbol *) hash_find (local_hash, name); | |
640 | if (locsym != NULL) | |
641 | return (symbolS *) locsym; | |
642 | } | |
643 | #endif | |
49309057 | 644 | |
252b5132 RH |
645 | return ((symbolS *) hash_find (sy_hash, name)); |
646 | } | |
647 | ||
7c743825 KH |
648 | /* Once upon a time, symbols were kept in a singly linked list. At |
649 | least coff needs to be able to rearrange them from time to time, for | |
650 | which a doubly linked list is much more convenient. Loic did these | |
651 | as macros which seemed dangerous to me so they're now functions. | |
652 | xoxorich. */ | |
653 | ||
654 | /* Link symbol ADDME after symbol TARGET in the chain. */ | |
252b5132 | 655 | |
7c743825 | 656 | void |
252b5132 RH |
657 | symbol_append (addme, target, rootPP, lastPP) |
658 | symbolS *addme; | |
659 | symbolS *target; | |
660 | symbolS **rootPP; | |
661 | symbolS **lastPP; | |
662 | { | |
49309057 ILT |
663 | if (LOCAL_SYMBOL_CHECK (addme)) |
664 | abort (); | |
665 | if (target != NULL && LOCAL_SYMBOL_CHECK (target)) | |
666 | abort (); | |
667 | ||
252b5132 RH |
668 | if (target == NULL) |
669 | { | |
670 | know (*rootPP == NULL); | |
671 | know (*lastPP == NULL); | |
672 | addme->sy_next = NULL; | |
673 | #ifdef SYMBOLS_NEED_BACKPOINTERS | |
674 | addme->sy_previous = NULL; | |
675 | #endif | |
676 | *rootPP = addme; | |
677 | *lastPP = addme; | |
678 | return; | |
7c743825 | 679 | } /* if the list is empty */ |
252b5132 RH |
680 | |
681 | if (target->sy_next != NULL) | |
682 | { | |
683 | #ifdef SYMBOLS_NEED_BACKPOINTERS | |
684 | target->sy_next->sy_previous = addme; | |
685 | #endif /* SYMBOLS_NEED_BACKPOINTERS */ | |
686 | } | |
687 | else | |
688 | { | |
689 | know (*lastPP == target); | |
690 | *lastPP = addme; | |
7c743825 | 691 | } /* if we have a next */ |
252b5132 RH |
692 | |
693 | addme->sy_next = target->sy_next; | |
694 | target->sy_next = addme; | |
695 | ||
696 | #ifdef SYMBOLS_NEED_BACKPOINTERS | |
697 | addme->sy_previous = target; | |
698 | #endif /* SYMBOLS_NEED_BACKPOINTERS */ | |
699 | ||
700 | debug_verify_symchain (symbol_rootP, symbol_lastP); | |
701 | } | |
702 | ||
7c743825 KH |
703 | /* Set the chain pointers of SYMBOL to null. */ |
704 | ||
705 | void | |
252b5132 RH |
706 | symbol_clear_list_pointers (symbolP) |
707 | symbolS *symbolP; | |
708 | { | |
49309057 ILT |
709 | if (LOCAL_SYMBOL_CHECK (symbolP)) |
710 | abort (); | |
252b5132 RH |
711 | symbolP->sy_next = NULL; |
712 | #ifdef SYMBOLS_NEED_BACKPOINTERS | |
713 | symbolP->sy_previous = NULL; | |
714 | #endif | |
715 | } | |
716 | ||
717 | #ifdef SYMBOLS_NEED_BACKPOINTERS | |
7c743825 KH |
718 | /* Remove SYMBOLP from the list. */ |
719 | ||
720 | void | |
252b5132 RH |
721 | symbol_remove (symbolP, rootPP, lastPP) |
722 | symbolS *symbolP; | |
723 | symbolS **rootPP; | |
724 | symbolS **lastPP; | |
725 | { | |
49309057 ILT |
726 | if (LOCAL_SYMBOL_CHECK (symbolP)) |
727 | abort (); | |
728 | ||
252b5132 RH |
729 | if (symbolP == *rootPP) |
730 | { | |
731 | *rootPP = symbolP->sy_next; | |
7c743825 | 732 | } /* if it was the root */ |
252b5132 RH |
733 | |
734 | if (symbolP == *lastPP) | |
735 | { | |
736 | *lastPP = symbolP->sy_previous; | |
7c743825 | 737 | } /* if it was the tail */ |
252b5132 RH |
738 | |
739 | if (symbolP->sy_next != NULL) | |
740 | { | |
741 | symbolP->sy_next->sy_previous = symbolP->sy_previous; | |
7c743825 | 742 | } /* if not last */ |
252b5132 RH |
743 | |
744 | if (symbolP->sy_previous != NULL) | |
745 | { | |
746 | symbolP->sy_previous->sy_next = symbolP->sy_next; | |
7c743825 | 747 | } /* if not first */ |
252b5132 RH |
748 | |
749 | debug_verify_symchain (*rootPP, *lastPP); | |
750 | } | |
751 | ||
7c743825 KH |
752 | /* Link symbol ADDME before symbol TARGET in the chain. */ |
753 | ||
754 | void | |
252b5132 RH |
755 | symbol_insert (addme, target, rootPP, lastPP) |
756 | symbolS *addme; | |
757 | symbolS *target; | |
758 | symbolS **rootPP; | |
ab9da554 | 759 | symbolS **lastPP ATTRIBUTE_UNUSED; |
252b5132 | 760 | { |
49309057 ILT |
761 | if (LOCAL_SYMBOL_CHECK (addme)) |
762 | abort (); | |
763 | if (LOCAL_SYMBOL_CHECK (target)) | |
764 | abort (); | |
765 | ||
252b5132 RH |
766 | if (target->sy_previous != NULL) |
767 | { | |
768 | target->sy_previous->sy_next = addme; | |
769 | } | |
770 | else | |
771 | { | |
772 | know (*rootPP == target); | |
773 | *rootPP = addme; | |
7c743825 | 774 | } /* if not first */ |
252b5132 RH |
775 | |
776 | addme->sy_previous = target->sy_previous; | |
777 | target->sy_previous = addme; | |
778 | addme->sy_next = target; | |
779 | ||
780 | debug_verify_symchain (*rootPP, *lastPP); | |
781 | } | |
782 | ||
783 | #endif /* SYMBOLS_NEED_BACKPOINTERS */ | |
784 | ||
7c743825 | 785 | void |
252b5132 RH |
786 | verify_symbol_chain (rootP, lastP) |
787 | symbolS *rootP; | |
788 | symbolS *lastP; | |
789 | { | |
790 | symbolS *symbolP = rootP; | |
791 | ||
792 | if (symbolP == NULL) | |
793 | return; | |
794 | ||
795 | for (; symbol_next (symbolP) != NULL; symbolP = symbol_next (symbolP)) | |
796 | { | |
49309057 ILT |
797 | #ifdef BFD_ASSEMBLER |
798 | assert (symbolP->bsym != NULL); | |
799 | #endif | |
252b5132 RH |
800 | #ifdef SYMBOLS_NEED_BACKPOINTERS |
801 | assert (symbolP->sy_next->sy_previous == symbolP); | |
802 | #else | |
803 | /* Walk the list anyways, to make sure pointers are still good. */ | |
804 | ; | |
805 | #endif /* SYMBOLS_NEED_BACKPOINTERS */ | |
806 | } | |
807 | ||
808 | assert (lastP == symbolP); | |
809 | } | |
810 | ||
811 | void | |
812 | verify_symbol_chain_2 (sym) | |
813 | symbolS *sym; | |
814 | { | |
815 | symbolS *p = sym, *n = sym; | |
816 | #ifdef SYMBOLS_NEED_BACKPOINTERS | |
817 | while (symbol_previous (p)) | |
818 | p = symbol_previous (p); | |
819 | #endif | |
820 | while (symbol_next (n)) | |
821 | n = symbol_next (n); | |
822 | verify_symbol_chain (p, n); | |
823 | } | |
824 | ||
825 | /* Resolve the value of a symbol. This is called during the final | |
826 | pass over the symbol table to resolve any symbols with complex | |
827 | values. */ | |
828 | ||
829 | valueT | |
830 | resolve_symbol_value (symp, finalize) | |
831 | symbolS *symp; | |
832 | int finalize; | |
833 | { | |
834 | int resolved; | |
835 | valueT final_val; | |
836 | segT final_seg; | |
837 | ||
a1605869 | 838 | #ifdef BFD_ASSEMBLER |
49309057 ILT |
839 | if (LOCAL_SYMBOL_CHECK (symp)) |
840 | { | |
841 | struct local_symbol *locsym = (struct local_symbol *) symp; | |
842 | ||
843 | if (local_symbol_resolved_p (locsym)) | |
24ef8152 | 844 | return locsym->lsy_offset / bfd_octets_per_byte (stdoutput); |
49309057 ILT |
845 | |
846 | final_val = (local_symbol_get_frag (locsym)->fr_address | |
24ef8152 | 847 | + locsym->lsy_offset) / bfd_octets_per_byte (stdoutput); |
49309057 ILT |
848 | |
849 | if (finalize) | |
850 | { | |
851 | locsym->lsy_offset = final_val; | |
852 | local_symbol_mark_resolved (locsym); | |
853 | } | |
854 | ||
855 | return final_val; | |
856 | } | |
a1605869 | 857 | #endif |
49309057 | 858 | |
252b5132 RH |
859 | if (symp->sy_resolved) |
860 | { | |
861 | if (symp->sy_value.X_op == O_constant) | |
862 | return (valueT) symp->sy_value.X_add_number; | |
863 | else | |
864 | return 0; | |
865 | } | |
866 | ||
867 | resolved = 0; | |
868 | final_seg = S_GET_SEGMENT (symp); | |
869 | ||
870 | if (symp->sy_resolving) | |
871 | { | |
872 | if (finalize) | |
7c743825 KH |
873 | as_bad (_("Symbol definition loop encountered at %s"), |
874 | S_GET_NAME (symp)); | |
252b5132 RH |
875 | final_val = 0; |
876 | resolved = 1; | |
877 | } | |
878 | else | |
879 | { | |
880 | symbolS *add_symbol, *op_symbol; | |
881 | offsetT left, right; | |
882 | segT seg_left, seg_right; | |
883 | operatorT op; | |
884 | ||
885 | symp->sy_resolving = 1; | |
886 | ||
887 | /* Help out with CSE. */ | |
888 | add_symbol = symp->sy_value.X_add_symbol; | |
889 | op_symbol = symp->sy_value.X_op_symbol; | |
890 | final_val = symp->sy_value.X_add_number; | |
891 | op = symp->sy_value.X_op; | |
892 | ||
893 | switch (op) | |
894 | { | |
895 | default: | |
896 | BAD_CASE (op); | |
897 | break; | |
898 | ||
899 | case O_absent: | |
900 | final_val = 0; | |
901 | /* Fall through. */ | |
902 | ||
903 | case O_constant: | |
bea9907b | 904 | final_val += symp->sy_frag->fr_address / OCTETS_PER_BYTE; |
252b5132 RH |
905 | if (final_seg == expr_section) |
906 | final_seg = absolute_section; | |
907 | resolved = 1; | |
908 | break; | |
909 | ||
910 | case O_symbol: | |
911 | case O_symbol_rva: | |
912 | left = resolve_symbol_value (add_symbol, finalize); | |
913 | do_symbol: | |
914 | ||
915 | if (symp->sy_mri_common) | |
916 | { | |
917 | /* This is a symbol inside an MRI common section. The | |
918 | relocation routines are going to handle it specially. | |
919 | Don't change the value. */ | |
49309057 | 920 | resolved = symbol_resolved_p (add_symbol); |
252b5132 RH |
921 | break; |
922 | } | |
923 | ||
924 | if (finalize && final_val == 0) | |
49309057 ILT |
925 | { |
926 | if (LOCAL_SYMBOL_CHECK (add_symbol)) | |
927 | add_symbol = local_symbol_convert ((struct local_symbol *) | |
928 | add_symbol); | |
929 | copy_symbol_attributes (symp, add_symbol); | |
930 | } | |
252b5132 RH |
931 | |
932 | /* If we have equated this symbol to an undefined symbol, we | |
933 | keep X_op set to O_symbol, and we don't change | |
934 | X_add_number. This permits the routine which writes out | |
935 | relocation to detect this case, and convert the | |
936 | relocation to be against the symbol to which this symbol | |
937 | is equated. */ | |
938 | if (! S_IS_DEFINED (add_symbol) || S_IS_COMMON (add_symbol)) | |
939 | { | |
940 | if (finalize) | |
941 | { | |
942 | S_SET_SEGMENT (symp, S_GET_SEGMENT (add_symbol)); | |
943 | symp->sy_value.X_op = O_symbol; | |
944 | symp->sy_value.X_add_symbol = add_symbol; | |
945 | symp->sy_value.X_add_number = final_val; | |
946 | } | |
947 | final_val = 0; | |
49309057 | 948 | resolved = symbol_resolved_p (add_symbol); |
252b5132 RH |
949 | goto exit_dont_set_value; |
950 | } | |
951 | else | |
952 | { | |
953 | final_val += symp->sy_frag->fr_address + left; | |
954 | if (final_seg == expr_section || final_seg == undefined_section) | |
955 | final_seg = S_GET_SEGMENT (add_symbol); | |
956 | } | |
957 | ||
49309057 | 958 | resolved = symbol_resolved_p (add_symbol); |
252b5132 RH |
959 | break; |
960 | ||
961 | case O_uminus: | |
962 | case O_bit_not: | |
963 | case O_logical_not: | |
964 | left = resolve_symbol_value (add_symbol, finalize); | |
965 | ||
966 | if (op == O_uminus) | |
967 | left = -left; | |
968 | else if (op == O_logical_not) | |
969 | left = !left; | |
970 | else | |
971 | left = ~left; | |
972 | ||
973 | final_val += left + symp->sy_frag->fr_address; | |
974 | if (final_seg == expr_section || final_seg == undefined_section) | |
975 | final_seg = absolute_section; | |
976 | ||
49309057 | 977 | resolved = symbol_resolved_p (add_symbol); |
252b5132 RH |
978 | break; |
979 | ||
980 | case O_multiply: | |
981 | case O_divide: | |
982 | case O_modulus: | |
983 | case O_left_shift: | |
984 | case O_right_shift: | |
985 | case O_bit_inclusive_or: | |
986 | case O_bit_or_not: | |
987 | case O_bit_exclusive_or: | |
988 | case O_bit_and: | |
989 | case O_add: | |
990 | case O_subtract: | |
991 | case O_eq: | |
992 | case O_ne: | |
993 | case O_lt: | |
994 | case O_le: | |
995 | case O_ge: | |
996 | case O_gt: | |
997 | case O_logical_and: | |
998 | case O_logical_or: | |
999 | left = resolve_symbol_value (add_symbol, finalize); | |
1000 | right = resolve_symbol_value (op_symbol, finalize); | |
1001 | seg_left = S_GET_SEGMENT (add_symbol); | |
1002 | seg_right = S_GET_SEGMENT (op_symbol); | |
1003 | ||
1004 | /* Simplify addition or subtraction of a constant by folding the | |
1005 | constant into X_add_number. */ | |
1006 | if (op == O_add || op == O_subtract) | |
1007 | { | |
1008 | if (seg_right == absolute_section) | |
1009 | { | |
1010 | if (op == O_add) | |
1011 | final_val += right; | |
1012 | else | |
1013 | final_val -= right; | |
1014 | op = O_symbol; | |
1015 | op_symbol = NULL; | |
1016 | goto do_symbol; | |
1017 | } | |
1018 | else if (seg_left == absolute_section && op == O_add) | |
1019 | { | |
1020 | op = O_symbol; | |
1021 | final_val += left; | |
1022 | add_symbol = op_symbol; | |
1023 | left = right; | |
1024 | op_symbol = NULL; | |
1025 | goto do_symbol; | |
1026 | } | |
1027 | } | |
1028 | ||
1029 | /* Subtraction is permitted if both operands are in the same | |
1030 | section. Otherwise, both operands must be absolute. We | |
1031 | already handled the case of addition or subtraction of a | |
1032 | constant above. This will probably need to be changed | |
1033 | for an object file format which supports arbitrary | |
1034 | expressions, such as IEEE-695. */ | |
1035 | /* Don't emit messages unless we're finalizing the symbol value, | |
1036 | otherwise we may get the same message multiple times. */ | |
9b4d630b ILT |
1037 | if ((seg_left != absolute_section |
1038 | || seg_right != absolute_section) | |
1039 | && (op != O_subtract | |
1040 | || seg_left != seg_right | |
1041 | || seg_left == undefined_section) | |
252b5132 RH |
1042 | && finalize) |
1043 | { | |
1044 | char *file; | |
1045 | unsigned int line; | |
1046 | ||
1047 | if (expr_symbol_where (symp, &file, &line)) | |
1048 | { | |
1049 | if (seg_left == undefined_section) | |
1050 | as_bad_where (file, line, | |
1051 | _("undefined symbol %s in operation"), | |
1052 | S_GET_NAME (symp->sy_value.X_add_symbol)); | |
1053 | if (seg_right == undefined_section) | |
1054 | as_bad_where (file, line, | |
1055 | _("undefined symbol %s in operation"), | |
1056 | S_GET_NAME (symp->sy_value.X_op_symbol)); | |
1057 | if (seg_left != undefined_section | |
1058 | && seg_right != undefined_section) | |
7c743825 KH |
1059 | as_bad_where (file, line, |
1060 | _("invalid section for operation")); | |
252b5132 RH |
1061 | } |
1062 | else | |
1063 | { | |
1064 | if (seg_left == undefined_section) | |
1065 | as_bad (_("undefined symbol %s in operation setting %s"), | |
1066 | S_GET_NAME (symp->sy_value.X_add_symbol), | |
1067 | S_GET_NAME (symp)); | |
1068 | if (seg_right == undefined_section) | |
1069 | as_bad (_("undefined symbol %s in operation setting %s"), | |
1070 | S_GET_NAME (symp->sy_value.X_op_symbol), | |
1071 | S_GET_NAME (symp)); | |
1072 | if (seg_left != undefined_section | |
1073 | && seg_right != undefined_section) | |
1074 | as_bad (_("invalid section for operation setting %s"), | |
1075 | S_GET_NAME (symp)); | |
1076 | } | |
1077 | } | |
1078 | ||
1079 | /* Check for division by zero. */ | |
1080 | if ((op == O_divide || op == O_modulus) && right == 0) | |
1081 | { | |
1082 | /* If seg_right is not absolute_section, then we've | |
1083 | already issued a warning about using a bad symbol. */ | |
1084 | if (seg_right == absolute_section && finalize) | |
1085 | { | |
1086 | char *file; | |
1087 | unsigned int line; | |
1088 | ||
1089 | if (expr_symbol_where (symp, &file, &line)) | |
1090 | as_bad_where (file, line, _("division by zero")); | |
1091 | else | |
1092 | as_bad (_("division by zero when setting %s"), | |
1093 | S_GET_NAME (symp)); | |
1094 | } | |
1095 | ||
1096 | right = 1; | |
1097 | } | |
1098 | ||
1099 | switch (symp->sy_value.X_op) | |
1100 | { | |
1101 | case O_multiply: left *= right; break; | |
1102 | case O_divide: left /= right; break; | |
1103 | case O_modulus: left %= right; break; | |
1104 | case O_left_shift: left <<= right; break; | |
1105 | case O_right_shift: left >>= right; break; | |
1106 | case O_bit_inclusive_or: left |= right; break; | |
1107 | case O_bit_or_not: left |= ~right; break; | |
1108 | case O_bit_exclusive_or: left ^= right; break; | |
1109 | case O_bit_and: left &= right; break; | |
1110 | case O_add: left += right; break; | |
1111 | case O_subtract: left -= right; break; | |
1112 | case O_eq: left = left == right ? ~ (offsetT) 0 : 0; break; | |
1113 | case O_ne: left = left != right ? ~ (offsetT) 0 : 0; break; | |
1114 | case O_lt: left = left < right ? ~ (offsetT) 0 : 0; break; | |
1115 | case O_le: left = left <= right ? ~ (offsetT) 0 : 0; break; | |
1116 | case O_ge: left = left >= right ? ~ (offsetT) 0 : 0; break; | |
1117 | case O_gt: left = left > right ? ~ (offsetT) 0 : 0; break; | |
1118 | case O_logical_and: left = left && right; break; | |
1119 | case O_logical_or: left = left || right; break; | |
1120 | default: abort (); | |
1121 | } | |
1122 | ||
1123 | final_val += symp->sy_frag->fr_address + left; | |
1124 | if (final_seg == expr_section || final_seg == undefined_section) | |
1125 | final_seg = absolute_section; | |
49309057 ILT |
1126 | resolved = (symbol_resolved_p (add_symbol) |
1127 | && symbol_resolved_p (op_symbol)); | |
7c743825 | 1128 | break; |
252b5132 RH |
1129 | |
1130 | case O_register: | |
1131 | case O_big: | |
1132 | case O_illegal: | |
1133 | /* Give an error (below) if not in expr_section. We don't | |
1134 | want to worry about expr_section symbols, because they | |
1135 | are fictional (they are created as part of expression | |
1136 | resolution), and any problems may not actually mean | |
1137 | anything. */ | |
1138 | break; | |
1139 | } | |
1140 | ||
1141 | symp->sy_resolving = 0; | |
1142 | } | |
1143 | ||
1144 | if (finalize) | |
1145 | { | |
1146 | S_SET_VALUE (symp, final_val); | |
1147 | ||
1148 | #if defined (OBJ_AOUT) && ! defined (BFD_ASSEMBLER) | |
1149 | /* The old a.out backend does not handle S_SET_SEGMENT correctly | |
1150 | for a stab symbol, so we use this bad hack. */ | |
1151 | if (final_seg != S_GET_SEGMENT (symp)) | |
1152 | #endif | |
1153 | S_SET_SEGMENT (symp, final_seg); | |
1154 | } | |
1155 | ||
1156 | exit_dont_set_value: | |
1157 | /* Don't worry if we can't resolve an expr_section symbol. */ | |
1158 | if (finalize) | |
1159 | { | |
1160 | if (resolved) | |
1161 | symp->sy_resolved = 1; | |
1162 | else if (S_GET_SEGMENT (symp) != expr_section) | |
1163 | { | |
7c743825 KH |
1164 | as_bad (_("can't resolve value for symbol \"%s\""), |
1165 | S_GET_NAME (symp)); | |
252b5132 RH |
1166 | symp->sy_resolved = 1; |
1167 | } | |
1168 | } | |
1169 | ||
1170 | return final_val; | |
1171 | } | |
1172 | ||
49309057 ILT |
1173 | #ifdef BFD_ASSEMBLER |
1174 | ||
1175 | static void resolve_local_symbol PARAMS ((const char *, PTR)); | |
1176 | ||
1177 | /* A static function passed to hash_traverse. */ | |
1178 | ||
1179 | static void | |
1180 | resolve_local_symbol (key, value) | |
ab9da554 | 1181 | const char *key ATTRIBUTE_UNUSED; |
49309057 ILT |
1182 | PTR value; |
1183 | { | |
1184 | if (value != NULL) | |
1185 | resolve_symbol_value (value, 1); | |
1186 | } | |
1187 | ||
1188 | #endif | |
1189 | ||
1190 | /* Resolve all local symbols. */ | |
1191 | ||
1192 | void | |
1193 | resolve_local_symbol_values () | |
1194 | { | |
1195 | #ifdef BFD_ASSEMBLER | |
1196 | hash_traverse (local_hash, resolve_local_symbol); | |
1197 | #endif | |
1198 | } | |
1199 | ||
252b5132 RH |
1200 | /* Dollar labels look like a number followed by a dollar sign. Eg, "42$". |
1201 | They are *really* local. That is, they go out of scope whenever we see a | |
1202 | label that isn't local. Also, like fb labels, there can be multiple | |
1203 | instances of a dollar label. Therefor, we name encode each instance with | |
1204 | the instance number, keep a list of defined symbols separate from the real | |
1205 | symbol table, and we treat these buggers as a sparse array. */ | |
1206 | ||
1207 | static long *dollar_labels; | |
1208 | static long *dollar_label_instances; | |
1209 | static char *dollar_label_defines; | |
1210 | static unsigned long dollar_label_count; | |
1211 | static unsigned long dollar_label_max; | |
1212 | ||
7c743825 | 1213 | int |
252b5132 RH |
1214 | dollar_label_defined (label) |
1215 | long label; | |
1216 | { | |
1217 | long *i; | |
1218 | ||
1219 | know ((dollar_labels != NULL) || (dollar_label_count == 0)); | |
1220 | ||
1221 | for (i = dollar_labels; i < dollar_labels + dollar_label_count; ++i) | |
1222 | if (*i == label) | |
1223 | return dollar_label_defines[i - dollar_labels]; | |
1224 | ||
7c743825 | 1225 | /* If we get here, label isn't defined. */ |
252b5132 | 1226 | return 0; |
7c743825 | 1227 | } |
252b5132 RH |
1228 | |
1229 | static long | |
1230 | dollar_label_instance (label) | |
1231 | long label; | |
1232 | { | |
1233 | long *i; | |
1234 | ||
1235 | know ((dollar_labels != NULL) || (dollar_label_count == 0)); | |
1236 | ||
1237 | for (i = dollar_labels; i < dollar_labels + dollar_label_count; ++i) | |
1238 | if (*i == label) | |
1239 | return (dollar_label_instances[i - dollar_labels]); | |
1240 | ||
7c743825 KH |
1241 | /* If we get here, we haven't seen the label before. |
1242 | Therefore its instance count is zero. */ | |
252b5132 RH |
1243 | return 0; |
1244 | } | |
1245 | ||
7c743825 | 1246 | void |
252b5132 RH |
1247 | dollar_label_clear () |
1248 | { | |
1249 | memset (dollar_label_defines, '\0', (unsigned int) dollar_label_count); | |
1250 | } | |
1251 | ||
1252 | #define DOLLAR_LABEL_BUMP_BY 10 | |
1253 | ||
7c743825 | 1254 | void |
252b5132 RH |
1255 | define_dollar_label (label) |
1256 | long label; | |
1257 | { | |
1258 | long *i; | |
1259 | ||
1260 | for (i = dollar_labels; i < dollar_labels + dollar_label_count; ++i) | |
1261 | if (*i == label) | |
1262 | { | |
1263 | ++dollar_label_instances[i - dollar_labels]; | |
1264 | dollar_label_defines[i - dollar_labels] = 1; | |
1265 | return; | |
1266 | } | |
1267 | ||
7c743825 | 1268 | /* If we get to here, we don't have label listed yet. */ |
252b5132 RH |
1269 | |
1270 | if (dollar_labels == NULL) | |
1271 | { | |
1272 | dollar_labels = (long *) xmalloc (DOLLAR_LABEL_BUMP_BY * sizeof (long)); | |
1273 | dollar_label_instances = (long *) xmalloc (DOLLAR_LABEL_BUMP_BY * sizeof (long)); | |
1274 | dollar_label_defines = xmalloc (DOLLAR_LABEL_BUMP_BY); | |
1275 | dollar_label_max = DOLLAR_LABEL_BUMP_BY; | |
1276 | dollar_label_count = 0; | |
1277 | } | |
1278 | else if (dollar_label_count == dollar_label_max) | |
1279 | { | |
1280 | dollar_label_max += DOLLAR_LABEL_BUMP_BY; | |
1281 | dollar_labels = (long *) xrealloc ((char *) dollar_labels, | |
1282 | dollar_label_max * sizeof (long)); | |
1283 | dollar_label_instances = (long *) xrealloc ((char *) dollar_label_instances, | |
1284 | dollar_label_max * sizeof (long)); | |
1285 | dollar_label_defines = xrealloc (dollar_label_defines, dollar_label_max); | |
7c743825 | 1286 | } /* if we needed to grow */ |
252b5132 RH |
1287 | |
1288 | dollar_labels[dollar_label_count] = label; | |
1289 | dollar_label_instances[dollar_label_count] = 1; | |
1290 | dollar_label_defines[dollar_label_count] = 1; | |
1291 | ++dollar_label_count; | |
1292 | } | |
1293 | ||
7c743825 KH |
1294 | /* Caller must copy returned name: we re-use the area for the next name. |
1295 | ||
1296 | The mth occurence of label n: is turned into the symbol "Ln^Am" | |
1297 | where n is the label number and m is the instance number. "L" makes | |
1298 | it a label discarded unless debugging and "^A"('\1') ensures no | |
1299 | ordinary symbol SHOULD get the same name as a local label | |
1300 | symbol. The first "4:" is "L4^A1" - the m numbers begin at 1. | |
1301 | ||
1302 | fb labels get the same treatment, except that ^B is used in place | |
1303 | of ^A. */ | |
1304 | ||
1305 | char * /* Return local label name. */ | |
252b5132 | 1306 | dollar_label_name (n, augend) |
7c743825 KH |
1307 | register long n; /* we just saw "n$:" : n a number. */ |
1308 | register int augend; /* 0 for current instance, 1 for new instance. */ | |
252b5132 RH |
1309 | { |
1310 | long i; | |
7c743825 | 1311 | /* Returned to caller, then copied. Used for created names ("4f"). */ |
252b5132 RH |
1312 | static char symbol_name_build[24]; |
1313 | register char *p; | |
1314 | register char *q; | |
7c743825 | 1315 | char symbol_name_temporary[20]; /* Build up a number, BACKWARDS. */ |
252b5132 RH |
1316 | |
1317 | know (n >= 0); | |
1318 | know (augend == 0 || augend == 1); | |
1319 | p = symbol_name_build; | |
f84dd1f0 NC |
1320 | #ifdef LOCAL_LABEL_PREFIX |
1321 | *p++ = LOCAL_LABEL_PREFIX; | |
1322 | #endif | |
252b5132 RH |
1323 | *p++ = 'L'; |
1324 | ||
7c743825 KH |
1325 | /* Next code just does sprintf( {}, "%d", n); */ |
1326 | /* Label number. */ | |
252b5132 RH |
1327 | q = symbol_name_temporary; |
1328 | for (*q++ = 0, i = n; i; ++q) | |
1329 | { | |
1330 | *q = i % 10 + '0'; | |
1331 | i /= 10; | |
1332 | } | |
1333 | while ((*p = *--q) != '\0') | |
1334 | ++p; | |
1335 | ||
aa257fcd | 1336 | *p++ = DOLLAR_LABEL_CHAR; /* ^A */ |
252b5132 | 1337 | |
7c743825 | 1338 | /* Instance number. */ |
252b5132 RH |
1339 | q = symbol_name_temporary; |
1340 | for (*q++ = 0, i = dollar_label_instance (n) + augend; i; ++q) | |
1341 | { | |
1342 | *q = i % 10 + '0'; | |
1343 | i /= 10; | |
1344 | } | |
1345 | while ((*p++ = *--q) != '\0');; | |
1346 | ||
7c743825 | 1347 | /* The label, as a '\0' ended string, starts at symbol_name_build. */ |
252b5132 RH |
1348 | return symbol_name_build; |
1349 | } | |
1350 | ||
7c743825 KH |
1351 | /* Sombody else's idea of local labels. They are made by "n:" where n |
1352 | is any decimal digit. Refer to them with | |
1353 | "nb" for previous (backward) n: | |
1354 | or "nf" for next (forward) n:. | |
1355 | ||
1356 | We do a little better and let n be any number, not just a single digit, but | |
1357 | since the other guy's assembler only does ten, we treat the first ten | |
1358 | specially. | |
1359 | ||
1360 | Like someone else's assembler, we have one set of local label counters for | |
1361 | entire assembly, not one set per (sub)segment like in most assemblers. This | |
1362 | implies that one can refer to a label in another segment, and indeed some | |
1363 | crufty compilers have done just that. | |
1364 | ||
1365 | Since there could be a LOT of these things, treat them as a sparse | |
1366 | array. */ | |
252b5132 RH |
1367 | |
1368 | #define FB_LABEL_SPECIAL (10) | |
1369 | ||
1370 | static long fb_low_counter[FB_LABEL_SPECIAL]; | |
1371 | static long *fb_labels; | |
1372 | static long *fb_label_instances; | |
1373 | static long fb_label_count; | |
1374 | static long fb_label_max; | |
1375 | ||
7c743825 | 1376 | /* This must be more than FB_LABEL_SPECIAL. */ |
252b5132 RH |
1377 | #define FB_LABEL_BUMP_BY (FB_LABEL_SPECIAL + 6) |
1378 | ||
7c743825 | 1379 | static void |
252b5132 RH |
1380 | fb_label_init () |
1381 | { | |
1382 | memset ((void *) fb_low_counter, '\0', sizeof (fb_low_counter)); | |
7c743825 | 1383 | } |
252b5132 | 1384 | |
7c743825 KH |
1385 | /* Add one to the instance number of this fb label. */ |
1386 | ||
1387 | void | |
252b5132 RH |
1388 | fb_label_instance_inc (label) |
1389 | long label; | |
1390 | { | |
1391 | long *i; | |
1392 | ||
1393 | if (label < FB_LABEL_SPECIAL) | |
1394 | { | |
1395 | ++fb_low_counter[label]; | |
1396 | return; | |
1397 | } | |
1398 | ||
1399 | if (fb_labels != NULL) | |
1400 | { | |
1401 | for (i = fb_labels + FB_LABEL_SPECIAL; | |
1402 | i < fb_labels + fb_label_count; ++i) | |
1403 | { | |
1404 | if (*i == label) | |
1405 | { | |
1406 | ++fb_label_instances[i - fb_labels]; | |
1407 | return; | |
7c743825 KH |
1408 | } /* if we find it */ |
1409 | } /* for each existing label */ | |
252b5132 RH |
1410 | } |
1411 | ||
7c743825 | 1412 | /* If we get to here, we don't have label listed yet. */ |
252b5132 RH |
1413 | |
1414 | if (fb_labels == NULL) | |
1415 | { | |
1416 | fb_labels = (long *) xmalloc (FB_LABEL_BUMP_BY * sizeof (long)); | |
1417 | fb_label_instances = (long *) xmalloc (FB_LABEL_BUMP_BY * sizeof (long)); | |
1418 | fb_label_max = FB_LABEL_BUMP_BY; | |
1419 | fb_label_count = FB_LABEL_SPECIAL; | |
1420 | ||
1421 | } | |
1422 | else if (fb_label_count == fb_label_max) | |
1423 | { | |
1424 | fb_label_max += FB_LABEL_BUMP_BY; | |
1425 | fb_labels = (long *) xrealloc ((char *) fb_labels, | |
1426 | fb_label_max * sizeof (long)); | |
1427 | fb_label_instances = (long *) xrealloc ((char *) fb_label_instances, | |
1428 | fb_label_max * sizeof (long)); | |
7c743825 | 1429 | } /* if we needed to grow */ |
252b5132 RH |
1430 | |
1431 | fb_labels[fb_label_count] = label; | |
1432 | fb_label_instances[fb_label_count] = 1; | |
1433 | ++fb_label_count; | |
1434 | } | |
1435 | ||
7c743825 | 1436 | static long |
252b5132 RH |
1437 | fb_label_instance (label) |
1438 | long label; | |
1439 | { | |
1440 | long *i; | |
1441 | ||
1442 | if (label < FB_LABEL_SPECIAL) | |
1443 | { | |
1444 | return (fb_low_counter[label]); | |
1445 | } | |
1446 | ||
1447 | if (fb_labels != NULL) | |
1448 | { | |
1449 | for (i = fb_labels + FB_LABEL_SPECIAL; | |
1450 | i < fb_labels + fb_label_count; ++i) | |
1451 | { | |
1452 | if (*i == label) | |
1453 | { | |
1454 | return (fb_label_instances[i - fb_labels]); | |
7c743825 KH |
1455 | } /* if we find it */ |
1456 | } /* for each existing label */ | |
252b5132 RH |
1457 | } |
1458 | ||
1459 | /* We didn't find the label, so this must be a reference to the | |
1460 | first instance. */ | |
1461 | return 0; | |
1462 | } | |
1463 | ||
7c743825 KH |
1464 | /* Caller must copy returned name: we re-use the area for the next name. |
1465 | ||
1466 | The mth occurence of label n: is turned into the symbol "Ln^Bm" | |
1467 | where n is the label number and m is the instance number. "L" makes | |
1468 | it a label discarded unless debugging and "^B"('\2') ensures no | |
1469 | ordinary symbol SHOULD get the same name as a local label | |
1470 | symbol. The first "4:" is "L4^B1" - the m numbers begin at 1. | |
1471 | ||
1472 | dollar labels get the same treatment, except that ^A is used in | |
1473 | place of ^B. */ | |
1474 | ||
1475 | char * /* Return local label name. */ | |
252b5132 | 1476 | fb_label_name (n, augend) |
7c743825 KH |
1477 | long n; /* We just saw "n:", "nf" or "nb" : n a number. */ |
1478 | long augend; /* 0 for nb, 1 for n:, nf. */ | |
252b5132 RH |
1479 | { |
1480 | long i; | |
7c743825 | 1481 | /* Returned to caller, then copied. Used for created names ("4f"). */ |
252b5132 RH |
1482 | static char symbol_name_build[24]; |
1483 | register char *p; | |
1484 | register char *q; | |
7c743825 | 1485 | char symbol_name_temporary[20]; /* Build up a number, BACKWARDS. */ |
252b5132 RH |
1486 | |
1487 | know (n >= 0); | |
1488 | know (augend == 0 || augend == 1); | |
1489 | p = symbol_name_build; | |
aa257fcd NC |
1490 | #ifdef LOCAL_LABEL_PREFIX |
1491 | *p++ = LOCAL_LABEL_PREFIX; | |
1492 | #endif | |
252b5132 RH |
1493 | *p++ = 'L'; |
1494 | ||
7c743825 KH |
1495 | /* Next code just does sprintf( {}, "%d", n); */ |
1496 | /* Label number. */ | |
252b5132 RH |
1497 | q = symbol_name_temporary; |
1498 | for (*q++ = 0, i = n; i; ++q) | |
1499 | { | |
1500 | *q = i % 10 + '0'; | |
1501 | i /= 10; | |
1502 | } | |
1503 | while ((*p = *--q) != '\0') | |
1504 | ++p; | |
1505 | ||
aa257fcd | 1506 | *p++ = LOCAL_LABEL_CHAR; /* ^B */ |
252b5132 | 1507 | |
7c743825 | 1508 | /* Instance number. */ |
252b5132 RH |
1509 | q = symbol_name_temporary; |
1510 | for (*q++ = 0, i = fb_label_instance (n) + augend; i; ++q) | |
1511 | { | |
1512 | *q = i % 10 + '0'; | |
1513 | i /= 10; | |
1514 | } | |
1515 | while ((*p++ = *--q) != '\0');; | |
1516 | ||
7c743825 | 1517 | /* The label, as a '\0' ended string, starts at symbol_name_build. */ |
252b5132 | 1518 | return (symbol_name_build); |
7c743825 | 1519 | } |
252b5132 | 1520 | |
7c743825 KH |
1521 | /* Decode name that may have been generated by foo_label_name() above. |
1522 | If the name wasn't generated by foo_label_name(), then return it | |
1523 | unaltered. This is used for error messages. */ | |
252b5132 RH |
1524 | |
1525 | char * | |
1526 | decode_local_label_name (s) | |
1527 | char *s; | |
1528 | { | |
1529 | char *p; | |
1530 | char *symbol_decode; | |
1531 | int label_number; | |
1532 | int instance_number; | |
1533 | char *type; | |
d95767bf | 1534 | const char *message_format; |
aa257fcd | 1535 | int index = 0; |
43ad3147 | 1536 | |
aa257fcd NC |
1537 | #ifdef LOCAL_LABEL_PREFIX |
1538 | if (s[index] == LOCAL_LABEL_PREFIX) | |
1539 | ++index; | |
1540 | #endif | |
43ad3147 | 1541 | |
aa257fcd | 1542 | if (s[index] != 'L') |
252b5132 RH |
1543 | return s; |
1544 | ||
aa257fcd | 1545 | for (label_number = 0, p = s + index + 1; isdigit ((unsigned char) *p); ++p) |
252b5132 RH |
1546 | label_number = (10 * label_number) + *p - '0'; |
1547 | ||
aa257fcd | 1548 | if (*p == DOLLAR_LABEL_CHAR) |
252b5132 | 1549 | type = "dollar"; |
aa257fcd | 1550 | else if (*p == LOCAL_LABEL_CHAR) |
252b5132 RH |
1551 | type = "fb"; |
1552 | else | |
1553 | return s; | |
1554 | ||
1555 | for (instance_number = 0, p++; isdigit ((unsigned char) *p); ++p) | |
1556 | instance_number = (10 * instance_number) + *p - '0'; | |
1557 | ||
d95767bf | 1558 | message_format = _("\"%d\" (instance number %d of a %s label)"); |
252b5132 RH |
1559 | symbol_decode = obstack_alloc (¬es, strlen (message_format) + 30); |
1560 | sprintf (symbol_decode, message_format, label_number, instance_number, type); | |
1561 | ||
1562 | return symbol_decode; | |
1563 | } | |
1564 | ||
1565 | /* Get the value of a symbol. */ | |
1566 | ||
1567 | valueT | |
1568 | S_GET_VALUE (s) | |
1569 | symbolS *s; | |
1570 | { | |
a1605869 | 1571 | #ifdef BFD_ASSEMBLER |
49309057 ILT |
1572 | if (LOCAL_SYMBOL_CHECK (s)) |
1573 | return ((struct local_symbol *) s)->lsy_offset; | |
a1605869 | 1574 | #endif |
49309057 | 1575 | |
252b5132 RH |
1576 | if (!s->sy_resolved && s->sy_value.X_op != O_constant) |
1577 | resolve_symbol_value (s, 1); | |
1578 | if (s->sy_value.X_op != O_constant) | |
1579 | { | |
1580 | static symbolS *recur; | |
1581 | ||
1582 | /* FIXME: In non BFD assemblers, S_IS_DEFINED and S_IS_COMMON | |
1583 | may call S_GET_VALUE. We use a static symbol to avoid the | |
1584 | immediate recursion. */ | |
1585 | if (recur == s) | |
1586 | return (valueT) s->sy_value.X_add_number; | |
1587 | recur = s; | |
1588 | if (! s->sy_resolved | |
1589 | || s->sy_value.X_op != O_symbol | |
1590 | || (S_IS_DEFINED (s) && ! S_IS_COMMON (s))) | |
1591 | as_bad (_("Attempt to get value of unresolved symbol %s"), | |
1592 | S_GET_NAME (s)); | |
1593 | recur = NULL; | |
1594 | } | |
1595 | return (valueT) s->sy_value.X_add_number; | |
1596 | } | |
1597 | ||
1598 | /* Set the value of a symbol. */ | |
1599 | ||
1600 | void | |
1601 | S_SET_VALUE (s, val) | |
1602 | symbolS *s; | |
1603 | valueT val; | |
1604 | { | |
a1605869 | 1605 | #ifdef BFD_ASSEMBLER |
49309057 ILT |
1606 | if (LOCAL_SYMBOL_CHECK (s)) |
1607 | { | |
1608 | ((struct local_symbol *) s)->lsy_offset = val; | |
1609 | return; | |
1610 | } | |
a1605869 | 1611 | #endif |
49309057 | 1612 | |
252b5132 RH |
1613 | s->sy_value.X_op = O_constant; |
1614 | s->sy_value.X_add_number = (offsetT) val; | |
1615 | s->sy_value.X_unsigned = 0; | |
1616 | } | |
1617 | ||
1618 | void | |
1619 | copy_symbol_attributes (dest, src) | |
1620 | symbolS *dest, *src; | |
1621 | { | |
49309057 | 1622 | if (LOCAL_SYMBOL_CHECK (dest)) |
7f2f689c | 1623 | dest = local_symbol_convert ((struct local_symbol *) dest); |
49309057 | 1624 | if (LOCAL_SYMBOL_CHECK (src)) |
7f2f689c | 1625 | src = local_symbol_convert ((struct local_symbol *) src); |
49309057 | 1626 | |
252b5132 RH |
1627 | #ifdef BFD_ASSEMBLER |
1628 | /* In an expression, transfer the settings of these flags. | |
1629 | The user can override later, of course. */ | |
1630 | #define COPIED_SYMFLAGS (BSF_FUNCTION | BSF_OBJECT) | |
1631 | dest->bsym->flags |= src->bsym->flags & COPIED_SYMFLAGS; | |
1632 | #endif | |
1633 | ||
1634 | #ifdef OBJ_COPY_SYMBOL_ATTRIBUTES | |
1635 | OBJ_COPY_SYMBOL_ATTRIBUTES (dest, src); | |
1636 | #endif | |
1637 | } | |
1638 | ||
1639 | #ifdef BFD_ASSEMBLER | |
1640 | ||
1641 | int | |
1642 | S_IS_FUNCTION (s) | |
1643 | symbolS *s; | |
1644 | { | |
49309057 ILT |
1645 | flagword flags; |
1646 | ||
1647 | if (LOCAL_SYMBOL_CHECK (s)) | |
1648 | return 0; | |
1649 | ||
1650 | flags = s->bsym->flags; | |
252b5132 RH |
1651 | |
1652 | return (flags & BSF_FUNCTION) != 0; | |
1653 | } | |
1654 | ||
1655 | int | |
1656 | S_IS_EXTERNAL (s) | |
1657 | symbolS *s; | |
1658 | { | |
49309057 ILT |
1659 | flagword flags; |
1660 | ||
1661 | if (LOCAL_SYMBOL_CHECK (s)) | |
1662 | return 0; | |
1663 | ||
1664 | flags = s->bsym->flags; | |
252b5132 | 1665 | |
7c743825 | 1666 | /* Sanity check. */ |
252b5132 RH |
1667 | if ((flags & BSF_LOCAL) && (flags & BSF_GLOBAL)) |
1668 | abort (); | |
1669 | ||
1670 | return (flags & BSF_GLOBAL) != 0; | |
1671 | } | |
1672 | ||
1673 | int | |
1674 | S_IS_WEAK (s) | |
1675 | symbolS *s; | |
1676 | { | |
49309057 ILT |
1677 | if (LOCAL_SYMBOL_CHECK (s)) |
1678 | return 0; | |
252b5132 RH |
1679 | return (s->bsym->flags & BSF_WEAK) != 0; |
1680 | } | |
1681 | ||
1682 | int | |
1683 | S_IS_COMMON (s) | |
1684 | symbolS *s; | |
1685 | { | |
49309057 ILT |
1686 | if (LOCAL_SYMBOL_CHECK (s)) |
1687 | return 0; | |
252b5132 RH |
1688 | return bfd_is_com_section (s->bsym->section); |
1689 | } | |
1690 | ||
1691 | int | |
1692 | S_IS_DEFINED (s) | |
1693 | symbolS *s; | |
1694 | { | |
49309057 ILT |
1695 | if (LOCAL_SYMBOL_CHECK (s)) |
1696 | return ((struct local_symbol *) s)->lsy_section != undefined_section; | |
252b5132 RH |
1697 | return s->bsym->section != undefined_section; |
1698 | } | |
1699 | ||
1700 | int | |
1701 | S_IS_DEBUG (s) | |
1702 | symbolS *s; | |
1703 | { | |
49309057 ILT |
1704 | if (LOCAL_SYMBOL_CHECK (s)) |
1705 | return 0; | |
252b5132 RH |
1706 | if (s->bsym->flags & BSF_DEBUGGING) |
1707 | return 1; | |
1708 | return 0; | |
1709 | } | |
1710 | ||
1711 | int | |
1712 | S_IS_LOCAL (s) | |
1713 | symbolS *s; | |
1714 | { | |
49309057 | 1715 | flagword flags; |
252b5132 RH |
1716 | const char *name; |
1717 | ||
49309057 ILT |
1718 | if (LOCAL_SYMBOL_CHECK (s)) |
1719 | return 1; | |
1720 | ||
1721 | flags = s->bsym->flags; | |
1722 | ||
7c743825 | 1723 | /* Sanity check. */ |
252b5132 RH |
1724 | if ((flags & BSF_LOCAL) && (flags & BSF_GLOBAL)) |
1725 | abort (); | |
1726 | ||
1727 | if (bfd_get_section (s->bsym) == reg_section) | |
1728 | return 1; | |
1729 | ||
1730 | if (flag_strip_local_absolute | |
1731 | && (flags & BSF_GLOBAL) == 0 | |
1732 | && bfd_get_section (s->bsym) == absolute_section) | |
1733 | return 1; | |
1734 | ||
1735 | name = S_GET_NAME (s); | |
1736 | return (name != NULL | |
1737 | && ! S_IS_DEBUG (s) | |
aa257fcd NC |
1738 | && (strchr (name, DOLLAR_LABEL_CHAR) |
1739 | || strchr (name, LOCAL_LABEL_CHAR) | |
252b5132 RH |
1740 | || (! flag_keep_locals |
1741 | && (bfd_is_local_label (stdoutput, s->bsym) | |
1742 | || (flag_mri | |
1743 | && name[0] == '?' | |
1744 | && name[1] == '?'))))); | |
1745 | } | |
1746 | ||
1747 | int | |
1748 | S_IS_EXTERN (s) | |
1749 | symbolS *s; | |
1750 | { | |
1751 | return S_IS_EXTERNAL (s); | |
1752 | } | |
1753 | ||
1754 | int | |
1755 | S_IS_STABD (s) | |
1756 | symbolS *s; | |
1757 | { | |
1758 | return S_GET_NAME (s) == 0; | |
1759 | } | |
1760 | ||
1761 | CONST char * | |
1762 | S_GET_NAME (s) | |
1763 | symbolS *s; | |
1764 | { | |
49309057 ILT |
1765 | if (LOCAL_SYMBOL_CHECK (s)) |
1766 | return ((struct local_symbol *) s)->lsy_name; | |
252b5132 RH |
1767 | return s->bsym->name; |
1768 | } | |
1769 | ||
1770 | segT | |
1771 | S_GET_SEGMENT (s) | |
1772 | symbolS *s; | |
1773 | { | |
49309057 ILT |
1774 | if (LOCAL_SYMBOL_CHECK (s)) |
1775 | return ((struct local_symbol *) s)->lsy_section; | |
252b5132 RH |
1776 | return s->bsym->section; |
1777 | } | |
1778 | ||
1779 | void | |
1780 | S_SET_SEGMENT (s, seg) | |
1781 | symbolS *s; | |
1782 | segT seg; | |
1783 | { | |
1784 | /* Don't reassign section symbols. The direct reason is to prevent seg | |
1785 | faults assigning back to const global symbols such as *ABS*, but it | |
1786 | shouldn't happen anyway. */ | |
1787 | ||
49309057 ILT |
1788 | if (LOCAL_SYMBOL_CHECK (s)) |
1789 | { | |
1790 | if (seg == reg_section) | |
1791 | s = local_symbol_convert ((struct local_symbol *) s); | |
1792 | else | |
1793 | { | |
1794 | ((struct local_symbol *) s)->lsy_section = seg; | |
1795 | return; | |
1796 | } | |
1797 | } | |
1798 | ||
252b5132 RH |
1799 | if (s->bsym->flags & BSF_SECTION_SYM) |
1800 | { | |
1801 | if (s->bsym->section != seg) | |
7c743825 | 1802 | abort (); |
252b5132 RH |
1803 | } |
1804 | else | |
1805 | s->bsym->section = seg; | |
1806 | } | |
1807 | ||
1808 | void | |
1809 | S_SET_EXTERNAL (s) | |
1810 | symbolS *s; | |
1811 | { | |
49309057 ILT |
1812 | if (LOCAL_SYMBOL_CHECK (s)) |
1813 | s = local_symbol_convert ((struct local_symbol *) s); | |
252b5132 RH |
1814 | if ((s->bsym->flags & BSF_WEAK) != 0) |
1815 | { | |
1816 | /* Let .weak override .global. */ | |
1817 | return; | |
1818 | } | |
1819 | s->bsym->flags |= BSF_GLOBAL; | |
7c743825 | 1820 | s->bsym->flags &= ~(BSF_LOCAL | BSF_WEAK); |
252b5132 RH |
1821 | } |
1822 | ||
1823 | void | |
1824 | S_CLEAR_EXTERNAL (s) | |
1825 | symbolS *s; | |
1826 | { | |
49309057 ILT |
1827 | if (LOCAL_SYMBOL_CHECK (s)) |
1828 | return; | |
252b5132 RH |
1829 | if ((s->bsym->flags & BSF_WEAK) != 0) |
1830 | { | |
1831 | /* Let .weak override. */ | |
1832 | return; | |
1833 | } | |
1834 | s->bsym->flags |= BSF_LOCAL; | |
7c743825 | 1835 | s->bsym->flags &= ~(BSF_GLOBAL | BSF_WEAK); |
252b5132 RH |
1836 | } |
1837 | ||
1838 | void | |
1839 | S_SET_WEAK (s) | |
1840 | symbolS *s; | |
1841 | { | |
49309057 ILT |
1842 | if (LOCAL_SYMBOL_CHECK (s)) |
1843 | s = local_symbol_convert ((struct local_symbol *) s); | |
252b5132 | 1844 | s->bsym->flags |= BSF_WEAK; |
7c743825 | 1845 | s->bsym->flags &= ~(BSF_GLOBAL | BSF_LOCAL); |
252b5132 RH |
1846 | } |
1847 | ||
1848 | void | |
1849 | S_SET_NAME (s, name) | |
1850 | symbolS *s; | |
1851 | char *name; | |
1852 | { | |
49309057 ILT |
1853 | if (LOCAL_SYMBOL_CHECK (s)) |
1854 | { | |
1855 | ((struct local_symbol *) s)->lsy_name = name; | |
1856 | return; | |
1857 | } | |
252b5132 RH |
1858 | s->bsym->name = name; |
1859 | } | |
1860 | #endif /* BFD_ASSEMBLER */ | |
1861 | ||
49309057 ILT |
1862 | #ifdef SYMBOLS_NEED_BACKPOINTERS |
1863 | ||
1864 | /* Return the previous symbol in a chain. */ | |
1865 | ||
1866 | symbolS * | |
1867 | symbol_previous (s) | |
1868 | symbolS *s; | |
1869 | { | |
1870 | if (LOCAL_SYMBOL_CHECK (s)) | |
1871 | abort (); | |
1872 | return s->sy_previous; | |
1873 | } | |
1874 | ||
1875 | #endif /* SYMBOLS_NEED_BACKPOINTERS */ | |
1876 | ||
1877 | /* Return the next symbol in a chain. */ | |
1878 | ||
1879 | symbolS * | |
1880 | symbol_next (s) | |
1881 | symbolS *s; | |
1882 | { | |
1883 | if (LOCAL_SYMBOL_CHECK (s)) | |
1884 | abort (); | |
1885 | return s->sy_next; | |
1886 | } | |
1887 | ||
1888 | /* Return a pointer to the value of a symbol as an expression. */ | |
1889 | ||
1890 | expressionS * | |
1891 | symbol_get_value_expression (s) | |
1892 | symbolS *s; | |
1893 | { | |
1894 | if (LOCAL_SYMBOL_CHECK (s)) | |
1895 | s = local_symbol_convert ((struct local_symbol *) s); | |
1896 | return &s->sy_value; | |
1897 | } | |
1898 | ||
1899 | /* Set the value of a symbol to an expression. */ | |
1900 | ||
1901 | void | |
1902 | symbol_set_value_expression (s, exp) | |
1903 | symbolS *s; | |
1904 | const expressionS *exp; | |
1905 | { | |
1906 | if (LOCAL_SYMBOL_CHECK (s)) | |
1907 | s = local_symbol_convert ((struct local_symbol *) s); | |
1908 | s->sy_value = *exp; | |
1909 | } | |
1910 | ||
1911 | /* Set the frag of a symbol. */ | |
1912 | ||
1913 | void | |
1914 | symbol_set_frag (s, f) | |
1915 | symbolS *s; | |
1916 | fragS *f; | |
1917 | { | |
a1605869 | 1918 | #ifdef BFD_ASSEMBLER |
49309057 ILT |
1919 | if (LOCAL_SYMBOL_CHECK (s)) |
1920 | { | |
1921 | local_symbol_set_frag ((struct local_symbol *) s, f); | |
1922 | return; | |
1923 | } | |
a1605869 | 1924 | #endif |
49309057 ILT |
1925 | s->sy_frag = f; |
1926 | } | |
1927 | ||
1928 | /* Return the frag of a symbol. */ | |
1929 | ||
1930 | fragS * | |
1931 | symbol_get_frag (s) | |
1932 | symbolS *s; | |
1933 | { | |
a1605869 | 1934 | #ifdef BFD_ASSEMBLER |
49309057 ILT |
1935 | if (LOCAL_SYMBOL_CHECK (s)) |
1936 | return local_symbol_get_frag ((struct local_symbol *) s); | |
a1605869 | 1937 | #endif |
49309057 ILT |
1938 | return s->sy_frag; |
1939 | } | |
1940 | ||
1941 | /* Mark a symbol as having been used. */ | |
1942 | ||
1943 | void | |
1944 | symbol_mark_used (s) | |
1945 | symbolS *s; | |
1946 | { | |
1947 | if (LOCAL_SYMBOL_CHECK (s)) | |
1948 | return; | |
1949 | s->sy_used = 1; | |
1950 | } | |
1951 | ||
1952 | /* Clear the mark of whether a symbol has been used. */ | |
1953 | ||
1954 | void | |
1955 | symbol_clear_used (s) | |
1956 | symbolS *s; | |
1957 | { | |
1958 | if (LOCAL_SYMBOL_CHECK (s)) | |
1959 | s = local_symbol_convert ((struct local_symbol *) s); | |
1960 | s->sy_used = 0; | |
1961 | } | |
1962 | ||
1963 | /* Return whether a symbol has been used. */ | |
1964 | ||
1965 | int | |
1966 | symbol_used_p (s) | |
1967 | symbolS *s; | |
1968 | { | |
1969 | if (LOCAL_SYMBOL_CHECK (s)) | |
1970 | return 1; | |
1971 | return s->sy_used; | |
1972 | } | |
1973 | ||
1974 | /* Mark a symbol as having been used in a reloc. */ | |
1975 | ||
1976 | void | |
1977 | symbol_mark_used_in_reloc (s) | |
1978 | symbolS *s; | |
1979 | { | |
1980 | if (LOCAL_SYMBOL_CHECK (s)) | |
1981 | s = local_symbol_convert ((struct local_symbol *) s); | |
1982 | s->sy_used_in_reloc = 1; | |
1983 | } | |
1984 | ||
1985 | /* Clear the mark of whether a symbol has been used in a reloc. */ | |
1986 | ||
1987 | void | |
1988 | symbol_clear_used_in_reloc (s) | |
1989 | symbolS *s; | |
1990 | { | |
1991 | if (LOCAL_SYMBOL_CHECK (s)) | |
1992 | return; | |
1993 | s->sy_used_in_reloc = 0; | |
1994 | } | |
1995 | ||
1996 | /* Return whether a symbol has been used in a reloc. */ | |
1997 | ||
1998 | int | |
1999 | symbol_used_in_reloc_p (s) | |
2000 | symbolS *s; | |
2001 | { | |
2002 | if (LOCAL_SYMBOL_CHECK (s)) | |
2003 | return 0; | |
2004 | return s->sy_used_in_reloc; | |
2005 | } | |
2006 | ||
2007 | /* Mark a symbol as an MRI common symbol. */ | |
2008 | ||
2009 | void | |
2010 | symbol_mark_mri_common (s) | |
2011 | symbolS *s; | |
2012 | { | |
2013 | if (LOCAL_SYMBOL_CHECK (s)) | |
2014 | s = local_symbol_convert ((struct local_symbol *) s); | |
2015 | s->sy_mri_common = 1; | |
2016 | } | |
2017 | ||
2018 | /* Clear the mark of whether a symbol is an MRI common symbol. */ | |
2019 | ||
2020 | void | |
2021 | symbol_clear_mri_common (s) | |
2022 | symbolS *s; | |
2023 | { | |
2024 | if (LOCAL_SYMBOL_CHECK (s)) | |
2025 | return; | |
2026 | s->sy_mri_common = 0; | |
2027 | } | |
2028 | ||
2029 | /* Return whether a symbol is an MRI common symbol. */ | |
2030 | ||
2031 | int | |
2032 | symbol_mri_common_p (s) | |
2033 | symbolS *s; | |
2034 | { | |
2035 | if (LOCAL_SYMBOL_CHECK (s)) | |
2036 | return 0; | |
2037 | return s->sy_mri_common; | |
2038 | } | |
2039 | ||
2040 | /* Mark a symbol as having been written. */ | |
2041 | ||
2042 | void | |
2043 | symbol_mark_written (s) | |
2044 | symbolS *s; | |
2045 | { | |
2046 | if (LOCAL_SYMBOL_CHECK (s)) | |
2047 | return; | |
2048 | s->written = 1; | |
2049 | } | |
2050 | ||
2051 | /* Clear the mark of whether a symbol has been written. */ | |
2052 | ||
2053 | void | |
2054 | symbol_clear_written (s) | |
2055 | symbolS *s; | |
2056 | { | |
2057 | if (LOCAL_SYMBOL_CHECK (s)) | |
2058 | return; | |
2059 | s->written = 0; | |
2060 | } | |
2061 | ||
2062 | /* Return whether a symbol has been written. */ | |
2063 | ||
2064 | int | |
2065 | symbol_written_p (s) | |
2066 | symbolS *s; | |
2067 | { | |
2068 | if (LOCAL_SYMBOL_CHECK (s)) | |
2069 | return 0; | |
2070 | return s->written; | |
2071 | } | |
2072 | ||
2073 | /* Mark a symbol has having been resolved. */ | |
2074 | ||
2075 | void | |
2076 | symbol_mark_resolved (s) | |
2077 | symbolS *s; | |
2078 | { | |
a1605869 | 2079 | #ifdef BFD_ASSEMBLER |
49309057 ILT |
2080 | if (LOCAL_SYMBOL_CHECK (s)) |
2081 | { | |
2082 | local_symbol_mark_resolved ((struct local_symbol *) s); | |
2083 | return; | |
2084 | } | |
a1605869 | 2085 | #endif |
49309057 ILT |
2086 | s->sy_resolved = 1; |
2087 | } | |
2088 | ||
2089 | /* Return whether a symbol has been resolved. */ | |
2090 | ||
2091 | int | |
2092 | symbol_resolved_p (s) | |
2093 | symbolS *s; | |
2094 | { | |
a1605869 | 2095 | #ifdef BFD_ASSEMBLER |
49309057 ILT |
2096 | if (LOCAL_SYMBOL_CHECK (s)) |
2097 | return local_symbol_resolved_p ((struct local_symbol *) s); | |
a1605869 | 2098 | #endif |
49309057 ILT |
2099 | return s->sy_resolved; |
2100 | } | |
2101 | ||
2102 | /* Return whether a symbol is a section symbol. */ | |
2103 | ||
2104 | int | |
2105 | symbol_section_p (s) | |
a04b544b | 2106 | symbolS *s ATTRIBUTE_UNUSED; |
49309057 ILT |
2107 | { |
2108 | if (LOCAL_SYMBOL_CHECK (s)) | |
2109 | return 0; | |
2110 | #ifdef BFD_ASSEMBLER | |
2111 | return (s->bsym->flags & BSF_SECTION_SYM) != 0; | |
2112 | #else | |
7c743825 | 2113 | /* FIXME. */ |
49309057 ILT |
2114 | return 0; |
2115 | #endif | |
2116 | } | |
2117 | ||
2118 | /* Return whether a symbol is equated to another symbol. */ | |
2119 | ||
2120 | int | |
2121 | symbol_equated_p (s) | |
2122 | symbolS *s; | |
2123 | { | |
2124 | if (LOCAL_SYMBOL_CHECK (s)) | |
2125 | return 0; | |
2126 | return s->sy_value.X_op == O_symbol; | |
2127 | } | |
2128 | ||
2129 | /* Return whether a symbol has a constant value. */ | |
2130 | ||
2131 | int | |
2132 | symbol_constant_p (s) | |
2133 | symbolS *s; | |
2134 | { | |
2135 | if (LOCAL_SYMBOL_CHECK (s)) | |
2136 | return 1; | |
2137 | return s->sy_value.X_op == O_constant; | |
2138 | } | |
2139 | ||
2140 | #ifdef BFD_ASSEMBLER | |
2141 | ||
2142 | /* Return the BFD symbol for a symbol. */ | |
2143 | ||
2144 | asymbol * | |
2145 | symbol_get_bfdsym (s) | |
2146 | symbolS *s; | |
2147 | { | |
2148 | if (LOCAL_SYMBOL_CHECK (s)) | |
2149 | s = local_symbol_convert ((struct local_symbol *) s); | |
2150 | return s->bsym; | |
2151 | } | |
2152 | ||
2153 | /* Set the BFD symbol for a symbol. */ | |
2154 | ||
2155 | void | |
2156 | symbol_set_bfdsym (s, bsym) | |
2157 | symbolS *s; | |
2158 | asymbol *bsym; | |
2159 | { | |
2160 | if (LOCAL_SYMBOL_CHECK (s)) | |
2161 | s = local_symbol_convert ((struct local_symbol *) s); | |
2162 | s->bsym = bsym; | |
2163 | } | |
2164 | ||
2165 | #endif /* BFD_ASSEMBLER */ | |
2166 | ||
2167 | #ifdef OBJ_SYMFIELD_TYPE | |
2168 | ||
2169 | /* Get a pointer to the object format information for a symbol. */ | |
2170 | ||
2171 | OBJ_SYMFIELD_TYPE * | |
2172 | symbol_get_obj (s) | |
2173 | symbolS *s; | |
2174 | { | |
2175 | if (LOCAL_SYMBOL_CHECK (s)) | |
2176 | s = local_symbol_convert ((struct local_symbol *) s); | |
2177 | return &s->sy_obj; | |
2178 | } | |
2179 | ||
2180 | /* Set the object format information for a symbol. */ | |
2181 | ||
2182 | void | |
2183 | symbol_set_obj (s, o) | |
2184 | symbolS *s; | |
2185 | OBJ_SYMFIELD_TYPE *o; | |
2186 | { | |
2187 | if (LOCAL_SYMBOL_CHECK (s)) | |
2188 | s = local_symbol_convert ((struct local_symbol *) s); | |
2189 | s->sy_obj = *o; | |
2190 | } | |
2191 | ||
2192 | #endif /* OBJ_SYMFIELD_TYPE */ | |
2193 | ||
2194 | #ifdef TC_SYMFIELD_TYPE | |
2195 | ||
2196 | /* Get a pointer to the processor information for a symbol. */ | |
2197 | ||
2198 | TC_SYMFIELD_TYPE * | |
2199 | symbol_get_tc (s) | |
2200 | symbolS *s; | |
2201 | { | |
2202 | if (LOCAL_SYMBOL_CHECK (s)) | |
2203 | s = local_symbol_convert ((struct local_symbol *) s); | |
2204 | return &s->sy_tc; | |
2205 | } | |
2206 | ||
2207 | /* Set the processor information for a symbol. */ | |
2208 | ||
2209 | void | |
bf27257e | 2210 | symbol_set_tc (s, o) |
49309057 ILT |
2211 | symbolS *s; |
2212 | TC_SYMFIELD_TYPE *o; | |
2213 | { | |
2214 | if (LOCAL_SYMBOL_CHECK (s)) | |
2215 | s = local_symbol_convert ((struct local_symbol *) s); | |
2216 | s->sy_tc = *o; | |
2217 | } | |
2218 | ||
2219 | #endif /* TC_SYMFIELD_TYPE */ | |
2220 | ||
252b5132 RH |
2221 | void |
2222 | symbol_begin () | |
2223 | { | |
2224 | symbol_lastP = NULL; | |
7c743825 | 2225 | symbol_rootP = NULL; /* In case we have 0 symbols (!!) */ |
252b5132 | 2226 | sy_hash = hash_new (); |
49309057 ILT |
2227 | #ifdef BFD_ASSEMBLER |
2228 | local_hash = hash_new (); | |
2229 | #endif | |
252b5132 RH |
2230 | |
2231 | memset ((char *) (&abs_symbol), '\0', sizeof (abs_symbol)); | |
2232 | #ifdef BFD_ASSEMBLER | |
2233 | #if defined (EMIT_SECTION_SYMBOLS) || !defined (RELOC_REQUIRES_SYMBOL) | |
2234 | abs_symbol.bsym = bfd_abs_section.symbol; | |
2235 | #endif | |
2236 | #else | |
7c743825 | 2237 | /* Can't initialise a union. Sigh. */ |
252b5132 RH |
2238 | S_SET_SEGMENT (&abs_symbol, absolute_section); |
2239 | #endif | |
2240 | abs_symbol.sy_value.X_op = O_constant; | |
2241 | abs_symbol.sy_frag = &zero_address_frag; | |
2242 | ||
2243 | if (LOCAL_LABELS_FB) | |
2244 | fb_label_init (); | |
2245 | } | |
252b5132 RH |
2246 | \f |
2247 | int indent_level; | |
2248 | ||
2249 | /* Maximum indent level. | |
2250 | Available for modification inside a gdb session. */ | |
2251 | int max_indent_level = 8; | |
2252 | ||
2253 | #if 0 | |
2254 | ||
2255 | static void | |
2256 | indent () | |
2257 | { | |
2258 | printf ("%*s", indent_level * 4, ""); | |
2259 | } | |
2260 | ||
2261 | #endif | |
2262 | ||
2263 | void | |
2264 | print_symbol_value_1 (file, sym) | |
2265 | FILE *file; | |
2266 | symbolS *sym; | |
2267 | { | |
2268 | const char *name = S_GET_NAME (sym); | |
2269 | if (!name || !name[0]) | |
2270 | name = "(unnamed)"; | |
2271 | fprintf (file, "sym %lx %s", (unsigned long) sym, name); | |
49309057 ILT |
2272 | |
2273 | if (LOCAL_SYMBOL_CHECK (sym)) | |
2274 | { | |
a1605869 | 2275 | #ifdef BFD_ASSEMBLER |
49309057 ILT |
2276 | struct local_symbol *locsym = (struct local_symbol *) sym; |
2277 | if (local_symbol_get_frag (locsym) != &zero_address_frag | |
2278 | && local_symbol_get_frag (locsym) != NULL) | |
2279 | fprintf (file, " frag %lx", (long) local_symbol_get_frag (locsym)); | |
2280 | if (local_symbol_resolved_p (locsym)) | |
2281 | fprintf (file, " resolved"); | |
2282 | fprintf (file, " local"); | |
a1605869 | 2283 | #endif |
49309057 ILT |
2284 | } |
2285 | else | |
2286 | { | |
2287 | if (sym->sy_frag != &zero_address_frag) | |
2288 | fprintf (file, " frag %lx", (long) sym->sy_frag); | |
2289 | if (sym->written) | |
2290 | fprintf (file, " written"); | |
2291 | if (sym->sy_resolved) | |
2292 | fprintf (file, " resolved"); | |
2293 | else if (sym->sy_resolving) | |
2294 | fprintf (file, " resolving"); | |
2295 | if (sym->sy_used_in_reloc) | |
2296 | fprintf (file, " used-in-reloc"); | |
2297 | if (sym->sy_used) | |
2298 | fprintf (file, " used"); | |
2299 | if (S_IS_LOCAL (sym)) | |
2300 | fprintf (file, " local"); | |
2301 | if (S_IS_EXTERN (sym)) | |
2302 | fprintf (file, " extern"); | |
2303 | if (S_IS_DEBUG (sym)) | |
2304 | fprintf (file, " debug"); | |
2305 | if (S_IS_DEFINED (sym)) | |
2306 | fprintf (file, " defined"); | |
2307 | } | |
252b5132 | 2308 | fprintf (file, " %s", segment_name (S_GET_SEGMENT (sym))); |
49309057 | 2309 | if (symbol_resolved_p (sym)) |
252b5132 RH |
2310 | { |
2311 | segT s = S_GET_SEGMENT (sym); | |
2312 | ||
2313 | if (s != undefined_section | |
2314 | && s != expr_section) | |
2315 | fprintf (file, " %lx", (long) S_GET_VALUE (sym)); | |
2316 | } | |
2317 | else if (indent_level < max_indent_level | |
2318 | && S_GET_SEGMENT (sym) != undefined_section) | |
2319 | { | |
2320 | indent_level++; | |
2321 | fprintf (file, "\n%*s<", indent_level * 4, ""); | |
a1605869 | 2322 | #ifdef BFD_ASSEMBLER |
49309057 ILT |
2323 | if (LOCAL_SYMBOL_CHECK (sym)) |
2324 | fprintf (file, "constant %lx", | |
2325 | (long) ((struct local_symbol *) sym)->lsy_offset); | |
2326 | else | |
a1605869 | 2327 | #endif |
49309057 | 2328 | print_expr_1 (file, &sym->sy_value); |
252b5132 RH |
2329 | fprintf (file, ">"); |
2330 | indent_level--; | |
2331 | } | |
2332 | fflush (file); | |
2333 | } | |
2334 | ||
2335 | void | |
2336 | print_symbol_value (sym) | |
2337 | symbolS *sym; | |
2338 | { | |
2339 | indent_level = 0; | |
2340 | print_symbol_value_1 (stderr, sym); | |
2341 | fprintf (stderr, "\n"); | |
2342 | } | |
2343 | ||
2344 | static void | |
2345 | print_binary (file, name, exp) | |
2346 | FILE *file; | |
7c743825 | 2347 | const char *name; |
252b5132 RH |
2348 | expressionS *exp; |
2349 | { | |
2350 | indent_level++; | |
2351 | fprintf (file, "%s\n%*s<", name, indent_level * 4, ""); | |
2352 | print_symbol_value_1 (file, exp->X_add_symbol); | |
2353 | fprintf (file, ">\n%*s<", indent_level * 4, ""); | |
2354 | print_symbol_value_1 (file, exp->X_op_symbol); | |
2355 | fprintf (file, ">"); | |
2356 | indent_level--; | |
2357 | } | |
2358 | ||
2359 | void | |
2360 | print_expr_1 (file, exp) | |
2361 | FILE *file; | |
2362 | expressionS *exp; | |
2363 | { | |
2364 | fprintf (file, "expr %lx ", (long) exp); | |
2365 | switch (exp->X_op) | |
2366 | { | |
2367 | case O_illegal: | |
2368 | fprintf (file, "illegal"); | |
2369 | break; | |
2370 | case O_absent: | |
2371 | fprintf (file, "absent"); | |
2372 | break; | |
2373 | case O_constant: | |
2374 | fprintf (file, "constant %lx", (long) exp->X_add_number); | |
2375 | break; | |
2376 | case O_symbol: | |
2377 | indent_level++; | |
2378 | fprintf (file, "symbol\n%*s<", indent_level * 4, ""); | |
2379 | print_symbol_value_1 (file, exp->X_add_symbol); | |
2380 | fprintf (file, ">"); | |
2381 | maybe_print_addnum: | |
2382 | if (exp->X_add_number) | |
2383 | fprintf (file, "\n%*s%lx", indent_level * 4, "", | |
2384 | (long) exp->X_add_number); | |
2385 | indent_level--; | |
2386 | break; | |
2387 | case O_register: | |
2388 | fprintf (file, "register #%d", (int) exp->X_add_number); | |
2389 | break; | |
2390 | case O_big: | |
2391 | fprintf (file, "big"); | |
2392 | break; | |
2393 | case O_uminus: | |
2394 | fprintf (file, "uminus -<"); | |
2395 | indent_level++; | |
2396 | print_symbol_value_1 (file, exp->X_add_symbol); | |
2397 | fprintf (file, ">"); | |
2398 | goto maybe_print_addnum; | |
2399 | case O_bit_not: | |
2400 | fprintf (file, "bit_not"); | |
2401 | break; | |
2402 | case O_multiply: | |
2403 | print_binary (file, "multiply", exp); | |
2404 | break; | |
2405 | case O_divide: | |
2406 | print_binary (file, "divide", exp); | |
2407 | break; | |
2408 | case O_modulus: | |
2409 | print_binary (file, "modulus", exp); | |
2410 | break; | |
2411 | case O_left_shift: | |
2412 | print_binary (file, "lshift", exp); | |
2413 | break; | |
2414 | case O_right_shift: | |
2415 | print_binary (file, "rshift", exp); | |
2416 | break; | |
2417 | case O_bit_inclusive_or: | |
2418 | print_binary (file, "bit_ior", exp); | |
2419 | break; | |
2420 | case O_bit_exclusive_or: | |
2421 | print_binary (file, "bit_xor", exp); | |
2422 | break; | |
2423 | case O_bit_and: | |
2424 | print_binary (file, "bit_and", exp); | |
2425 | break; | |
2426 | case O_eq: | |
2427 | print_binary (file, "eq", exp); | |
2428 | break; | |
2429 | case O_ne: | |
2430 | print_binary (file, "ne", exp); | |
2431 | break; | |
2432 | case O_lt: | |
2433 | print_binary (file, "lt", exp); | |
2434 | break; | |
2435 | case O_le: | |
2436 | print_binary (file, "le", exp); | |
2437 | break; | |
2438 | case O_ge: | |
2439 | print_binary (file, "ge", exp); | |
2440 | break; | |
2441 | case O_gt: | |
2442 | print_binary (file, "gt", exp); | |
2443 | break; | |
2444 | case O_logical_and: | |
2445 | print_binary (file, "logical_and", exp); | |
2446 | break; | |
2447 | case O_logical_or: | |
2448 | print_binary (file, "logical_or", exp); | |
2449 | break; | |
2450 | case O_add: | |
2451 | indent_level++; | |
2452 | fprintf (file, "add\n%*s<", indent_level * 4, ""); | |
2453 | print_symbol_value_1 (file, exp->X_add_symbol); | |
2454 | fprintf (file, ">\n%*s<", indent_level * 4, ""); | |
2455 | print_symbol_value_1 (file, exp->X_op_symbol); | |
2456 | fprintf (file, ">"); | |
2457 | goto maybe_print_addnum; | |
2458 | case O_subtract: | |
2459 | indent_level++; | |
2460 | fprintf (file, "subtract\n%*s<", indent_level * 4, ""); | |
2461 | print_symbol_value_1 (file, exp->X_add_symbol); | |
2462 | fprintf (file, ">\n%*s<", indent_level * 4, ""); | |
2463 | print_symbol_value_1 (file, exp->X_op_symbol); | |
2464 | fprintf (file, ">"); | |
2465 | goto maybe_print_addnum; | |
2466 | default: | |
2467 | fprintf (file, "{unknown opcode %d}", (int) exp->X_op); | |
2468 | break; | |
2469 | } | |
2470 | fflush (stdout); | |
2471 | } | |
2472 | ||
2473 | void | |
2474 | print_expr (exp) | |
2475 | expressionS *exp; | |
2476 | { | |
2477 | print_expr_1 (stderr, exp); | |
2478 | fprintf (stderr, "\n"); | |
2479 | } | |
2480 | ||
2481 | void | |
2482 | symbol_print_statistics (file) | |
2483 | FILE *file; | |
2484 | { | |
2485 | hash_print_statistics (file, "symbol table", sy_hash); | |
49309057 ILT |
2486 | #ifdef BFD_ASSEMBLER |
2487 | hash_print_statistics (file, "mini local symbol table", local_hash); | |
2488 | fprintf (file, "%lu mini local symbols created, %lu converted\n", | |
2489 | local_symbol_count, local_symbol_conversion_count); | |
2490 | #endif | |
252b5132 | 2491 | } |