Commit | Line | Data |
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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 | ||
8c5e1ccd AO |
258 | #ifdef TC_LOCAL_SYMFIELD_CONVERT |
259 | TC_LOCAL_SYMFIELD_CONVERT (locsym, ret); | |
260 | #endif | |
261 | ||
49309057 ILT |
262 | symbol_table_insert (ret); |
263 | ||
264 | local_symbol_mark_converted (locsym); | |
265 | local_symbol_set_real_symbol (locsym, ret); | |
266 | ||
267 | hash_jam (local_hash, locsym->lsy_name, NULL); | |
268 | ||
269 | return ret; | |
270 | } | |
271 | ||
272 | #else /* ! BFD_ASSEMBLER */ | |
273 | ||
274 | #define LOCAL_SYMBOL_CHECK(s) 0 | |
275 | #define local_symbol_convert(s) ((symbolS *) s) | |
276 | ||
277 | #endif /* ! BFD_ASSEMBLER */ | |
278 | \f | |
7c743825 KH |
279 | /* We have just seen "<name>:". |
280 | Creates a struct symbol unless it already exists. | |
281 | ||
282 | Gripes if we are redefining a symbol incompatibly (and ignores it). */ | |
252b5132 | 283 | |
252b5132 | 284 | symbolS * |
7c743825 KH |
285 | colon (sym_name) /* Just seen "x:" - rattle symbols & frags. */ |
286 | const char *sym_name; /* Symbol name, as a cannonical string. */ | |
287 | /* We copy this string: OK to alter later. */ | |
252b5132 | 288 | { |
7c743825 | 289 | register symbolS *symbolP; /* Symbol we are working with. */ |
252b5132 RH |
290 | |
291 | /* Sun local labels go out of scope whenever a non-local symbol is | |
292 | defined. */ | |
293 | if (LOCAL_LABELS_DOLLAR) | |
294 | { | |
295 | int local; | |
296 | ||
297 | #ifdef BFD_ASSEMBLER | |
298 | local = bfd_is_local_label_name (stdoutput, sym_name); | |
299 | #else | |
300 | local = LOCAL_LABEL (sym_name); | |
301 | #endif | |
302 | ||
303 | if (! local) | |
304 | dollar_label_clear (); | |
305 | } | |
306 | ||
307 | #ifndef WORKING_DOT_WORD | |
308 | if (new_broken_words) | |
309 | { | |
310 | struct broken_word *a; | |
311 | int possible_bytes; | |
312 | fragS *frag_tmp; | |
313 | char *frag_opcode; | |
314 | ||
315 | extern const int md_short_jump_size; | |
316 | extern const int md_long_jump_size; | |
317 | possible_bytes = (md_short_jump_size | |
318 | + new_broken_words * md_long_jump_size); | |
319 | ||
320 | frag_tmp = frag_now; | |
321 | frag_opcode = frag_var (rs_broken_word, | |
322 | possible_bytes, | |
323 | possible_bytes, | |
324 | (relax_substateT) 0, | |
325 | (symbolS *) broken_words, | |
326 | (offsetT) 0, | |
327 | NULL); | |
328 | ||
7c743825 KH |
329 | /* We want to store the pointer to where to insert the jump |
330 | table in the fr_opcode of the rs_broken_word frag. This | |
331 | requires a little hackery. */ | |
252b5132 RH |
332 | while (frag_tmp |
333 | && (frag_tmp->fr_type != rs_broken_word | |
334 | || frag_tmp->fr_opcode)) | |
335 | frag_tmp = frag_tmp->fr_next; | |
336 | know (frag_tmp); | |
337 | frag_tmp->fr_opcode = frag_opcode; | |
338 | new_broken_words = 0; | |
339 | ||
340 | for (a = broken_words; a && a->dispfrag == 0; a = a->next_broken_word) | |
341 | a->dispfrag = frag_tmp; | |
342 | } | |
343 | #endif /* WORKING_DOT_WORD */ | |
344 | ||
345 | if ((symbolP = symbol_find (sym_name)) != 0) | |
346 | { | |
347 | #ifdef RESOLVE_SYMBOL_REDEFINITION | |
348 | if (RESOLVE_SYMBOL_REDEFINITION (symbolP)) | |
349 | return symbolP; | |
350 | #endif | |
7c743825 | 351 | /* Now check for undefined symbols. */ |
49309057 ILT |
352 | if (LOCAL_SYMBOL_CHECK (symbolP)) |
353 | { | |
a1605869 | 354 | #ifdef BFD_ASSEMBLER |
49309057 ILT |
355 | struct local_symbol *locsym = (struct local_symbol *) symbolP; |
356 | ||
357 | if (locsym->lsy_section != undefined_section | |
358 | && (local_symbol_get_frag (locsym) != frag_now | |
359 | || locsym->lsy_section != now_seg | |
360 | || locsym->lsy_offset != frag_now_fix ())) | |
361 | { | |
362 | as_bad (_("Symbol %s already defined."), sym_name); | |
363 | return symbolP; | |
364 | } | |
365 | ||
366 | locsym->lsy_section = now_seg; | |
367 | local_symbol_set_frag (locsym, frag_now); | |
368 | locsym->lsy_offset = frag_now_fix (); | |
a1605869 | 369 | #endif |
49309057 ILT |
370 | } |
371 | else if (!S_IS_DEFINED (symbolP) || S_IS_COMMON (symbolP)) | |
252b5132 RH |
372 | { |
373 | if (S_GET_VALUE (symbolP) == 0) | |
374 | { | |
375 | symbolP->sy_frag = frag_now; | |
376 | #ifdef OBJ_VMS | |
7c743825 | 377 | S_SET_OTHER (symbolP, const_flag); |
252b5132 RH |
378 | #endif |
379 | S_SET_VALUE (symbolP, (valueT) frag_now_fix ()); | |
380 | S_SET_SEGMENT (symbolP, now_seg); | |
381 | #ifdef N_UNDF | |
382 | know (N_UNDF == 0); | |
7c743825 | 383 | #endif /* if we have one, it better be zero. */ |
252b5132 RH |
384 | |
385 | } | |
386 | else | |
387 | { | |
7c743825 KH |
388 | /* There are still several cases to check: |
389 | ||
390 | A .comm/.lcomm symbol being redefined as initialized | |
391 | data is OK | |
392 | ||
393 | A .comm/.lcomm symbol being redefined with a larger | |
394 | size is also OK | |
395 | ||
396 | This only used to be allowed on VMS gas, but Sun cc | |
397 | on the sparc also depends on it. */ | |
252b5132 RH |
398 | |
399 | if (((!S_IS_DEBUG (symbolP) | |
400 | && (!S_IS_DEFINED (symbolP) || S_IS_COMMON (symbolP)) | |
401 | && S_IS_EXTERNAL (symbolP)) | |
402 | || S_GET_SEGMENT (symbolP) == bss_section) | |
403 | && (now_seg == data_section | |
404 | || now_seg == S_GET_SEGMENT (symbolP))) | |
405 | { | |
7c743825 | 406 | /* Select which of the 2 cases this is. */ |
252b5132 RH |
407 | if (now_seg != data_section) |
408 | { | |
7c743825 KH |
409 | /* New .comm for prev .comm symbol. |
410 | ||
411 | If the new size is larger we just change its | |
412 | value. If the new size is smaller, we ignore | |
413 | this symbol. */ | |
252b5132 RH |
414 | if (S_GET_VALUE (symbolP) |
415 | < ((unsigned) frag_now_fix ())) | |
416 | { | |
417 | S_SET_VALUE (symbolP, (valueT) frag_now_fix ()); | |
418 | } | |
419 | } | |
420 | else | |
421 | { | |
422 | /* It is a .comm/.lcomm being converted to initialized | |
423 | data. */ | |
424 | symbolP->sy_frag = frag_now; | |
425 | #ifdef OBJ_VMS | |
7c743825 | 426 | S_SET_OTHER (symbolP, const_flag); |
252b5132 RH |
427 | #endif |
428 | S_SET_VALUE (symbolP, (valueT) frag_now_fix ()); | |
7c743825 | 429 | S_SET_SEGMENT (symbolP, now_seg); /* Keep N_EXT bit. */ |
252b5132 RH |
430 | } |
431 | } | |
432 | else | |
433 | { | |
4c63da97 AM |
434 | #if (!defined (OBJ_AOUT) && !defined (OBJ_MAYBE_AOUT) \ |
435 | && !defined (OBJ_BOUT) && !defined (OBJ_MAYBE_BOUT)) | |
436 | static const char *od_buf = ""; | |
252b5132 | 437 | #else |
4c63da97 AM |
438 | char od_buf[100]; |
439 | od_buf[0] = '\0'; | |
440 | #ifdef BFD_ASSEMBLER | |
441 | if (OUTPUT_FLAVOR == bfd_target_aout_flavour) | |
442 | #endif | |
443 | sprintf(od_buf, "%d.%d.", | |
444 | S_GET_OTHER (symbolP), | |
445 | S_GET_DESC (symbolP)); | |
446 | #endif | |
d4887adc | 447 | as_bad (_("Symbol \"%s\" is already defined as \"%s\"/%s%ld."), |
252b5132 RH |
448 | sym_name, |
449 | segment_name (S_GET_SEGMENT (symbolP)), | |
4c63da97 | 450 | od_buf, |
252b5132 | 451 | (long) S_GET_VALUE (symbolP)); |
252b5132 | 452 | } |
7c743825 | 453 | } /* if the undefined symbol has no value */ |
252b5132 RH |
454 | } |
455 | else | |
456 | { | |
7c743825 | 457 | /* Don't blow up if the definition is the same. */ |
252b5132 RH |
458 | if (!(frag_now == symbolP->sy_frag |
459 | && S_GET_VALUE (symbolP) == frag_now_fix () | |
460 | && S_GET_SEGMENT (symbolP) == now_seg)) | |
d4887adc NC |
461 | as_bad (_("Symbol %s already defined."), sym_name); |
462 | } | |
252b5132 RH |
463 | |
464 | } | |
49309057 ILT |
465 | #ifdef BFD_ASSEMBLER |
466 | else if (! flag_keep_locals && bfd_is_local_label_name (stdoutput, sym_name)) | |
467 | { | |
468 | symbolP = (symbolS *) local_symbol_make (sym_name, now_seg, | |
469 | (valueT) frag_now_fix (), | |
470 | frag_now); | |
471 | } | |
472 | #endif /* BFD_ASSEMBLER */ | |
252b5132 RH |
473 | else |
474 | { | |
475 | symbolP = symbol_new (sym_name, now_seg, (valueT) frag_now_fix (), | |
476 | frag_now); | |
477 | #ifdef OBJ_VMS | |
478 | S_SET_OTHER (symbolP, const_flag); | |
479 | #endif /* OBJ_VMS */ | |
480 | ||
481 | symbol_table_insert (symbolP); | |
d4887adc | 482 | } |
252b5132 RH |
483 | |
484 | if (mri_common_symbol != NULL) | |
485 | { | |
486 | /* This symbol is actually being defined within an MRI common | |
487 | section. This requires special handling. */ | |
49309057 ILT |
488 | if (LOCAL_SYMBOL_CHECK (symbolP)) |
489 | symbolP = local_symbol_convert ((struct local_symbol *) symbolP); | |
252b5132 RH |
490 | symbolP->sy_value.X_op = O_symbol; |
491 | symbolP->sy_value.X_add_symbol = mri_common_symbol; | |
492 | symbolP->sy_value.X_add_number = S_GET_VALUE (mri_common_symbol); | |
493 | symbolP->sy_frag = &zero_address_frag; | |
494 | S_SET_SEGMENT (symbolP, expr_section); | |
495 | symbolP->sy_mri_common = 1; | |
496 | } | |
497 | ||
498 | #ifdef tc_frob_label | |
499 | tc_frob_label (symbolP); | |
500 | #endif | |
501 | #ifdef obj_frob_label | |
502 | obj_frob_label (symbolP); | |
503 | #endif | |
504 | ||
505 | return symbolP; | |
506 | } | |
507 | \f | |
7c743825 | 508 | /* Die if we can't insert the symbol. */ |
252b5132 | 509 | |
7c743825 | 510 | void |
252b5132 RH |
511 | symbol_table_insert (symbolP) |
512 | symbolS *symbolP; | |
513 | { | |
514 | register const char *error_string; | |
515 | ||
516 | know (symbolP); | |
517 | know (S_GET_NAME (symbolP)); | |
518 | ||
49309057 ILT |
519 | if (LOCAL_SYMBOL_CHECK (symbolP)) |
520 | { | |
521 | error_string = hash_jam (local_hash, S_GET_NAME (symbolP), | |
522 | (PTR) symbolP); | |
523 | if (error_string != NULL) | |
524 | as_fatal (_("Inserting \"%s\" into symbol table failed: %s"), | |
525 | S_GET_NAME (symbolP), error_string); | |
526 | return; | |
527 | } | |
528 | ||
252b5132 RH |
529 | if ((error_string = hash_jam (sy_hash, S_GET_NAME (symbolP), (PTR) symbolP))) |
530 | { | |
531 | as_fatal (_("Inserting \"%s\" into symbol table failed: %s"), | |
532 | S_GET_NAME (symbolP), error_string); | |
7c743825 KH |
533 | } /* on error */ |
534 | } | |
252b5132 | 535 | \f |
7c743825 KH |
536 | /* If a symbol name does not exist, create it as undefined, and insert |
537 | it into the symbol table. Return a pointer to it. */ | |
538 | ||
252b5132 RH |
539 | symbolS * |
540 | symbol_find_or_make (name) | |
541 | const char *name; | |
542 | { | |
543 | register symbolS *symbolP; | |
544 | ||
545 | symbolP = symbol_find (name); | |
546 | ||
547 | if (symbolP == NULL) | |
548 | { | |
49309057 ILT |
549 | #ifdef BFD_ASSEMBLER |
550 | if (! flag_keep_locals && bfd_is_local_label_name (stdoutput, name)) | |
551 | { | |
552 | symbolP = md_undefined_symbol ((char *) name); | |
553 | if (symbolP != NULL) | |
554 | return symbolP; | |
555 | ||
556 | symbolP = (symbolS *) local_symbol_make (name, undefined_section, | |
557 | (valueT) 0, | |
558 | &zero_address_frag); | |
559 | return symbolP; | |
560 | } | |
561 | #endif | |
562 | ||
252b5132 RH |
563 | symbolP = symbol_make (name); |
564 | ||
565 | symbol_table_insert (symbolP); | |
566 | } /* if symbol wasn't found */ | |
567 | ||
568 | return (symbolP); | |
7c743825 | 569 | } |
252b5132 RH |
570 | |
571 | symbolS * | |
572 | symbol_make (name) | |
573 | CONST char *name; | |
574 | { | |
575 | symbolS *symbolP; | |
576 | ||
7c743825 | 577 | /* Let the machine description default it, e.g. for register names. */ |
252b5132 RH |
578 | symbolP = md_undefined_symbol ((char *) name); |
579 | ||
580 | if (!symbolP) | |
581 | symbolP = symbol_new (name, undefined_section, (valueT) 0, &zero_address_frag); | |
582 | ||
583 | return (symbolP); | |
7c743825 | 584 | } |
252b5132 | 585 | |
7c743825 KH |
586 | /* Implement symbol table lookup. |
587 | In: A symbol's name as a string: '\0' can't be part of a symbol name. | |
588 | Out: NULL if the name was not in the symbol table, else the address | |
589 | of a struct symbol associated with that name. */ | |
252b5132 RH |
590 | |
591 | symbolS * | |
592 | symbol_find (name) | |
593 | CONST char *name; | |
594 | { | |
595 | #ifdef STRIP_UNDERSCORE | |
596 | return (symbol_find_base (name, 1)); | |
597 | #else /* STRIP_UNDERSCORE */ | |
598 | return (symbol_find_base (name, 0)); | |
599 | #endif /* STRIP_UNDERSCORE */ | |
7c743825 | 600 | } |
252b5132 RH |
601 | |
602 | symbolS * | |
603 | symbol_find_base (name, strip_underscore) | |
604 | CONST char *name; | |
605 | int strip_underscore; | |
606 | { | |
607 | if (strip_underscore && *name == '_') | |
608 | name++; | |
609 | ||
610 | #ifdef tc_canonicalize_symbol_name | |
611 | { | |
612 | char *copy; | |
03987ced | 613 | size_t len = strlen (name) + 1; |
252b5132 | 614 | |
03987ced RH |
615 | copy = (char *) alloca (len); |
616 | memcpy (copy, name, len); | |
252b5132 RH |
617 | name = tc_canonicalize_symbol_name (copy); |
618 | } | |
619 | #endif | |
620 | ||
621 | if (! symbols_case_sensitive) | |
622 | { | |
03987ced RH |
623 | char *copy; |
624 | const char *orig; | |
625 | unsigned char c; | |
626 | ||
627 | orig = name; | |
628 | name = copy = (char *) alloca (strlen (name) + 1); | |
629 | ||
630 | while ((c = *orig++) != '\0') | |
631 | { | |
632 | if (islower (c)) | |
633 | c = toupper (c); | |
634 | *copy++ = c; | |
635 | } | |
636 | *copy = '\0'; | |
252b5132 RH |
637 | } |
638 | ||
a1605869 ILT |
639 | #ifdef BFD_ASSEMBLER |
640 | { | |
641 | struct local_symbol *locsym; | |
642 | ||
643 | locsym = (struct local_symbol *) hash_find (local_hash, name); | |
644 | if (locsym != NULL) | |
645 | return (symbolS *) locsym; | |
646 | } | |
647 | #endif | |
49309057 | 648 | |
252b5132 RH |
649 | return ((symbolS *) hash_find (sy_hash, name)); |
650 | } | |
651 | ||
7c743825 KH |
652 | /* Once upon a time, symbols were kept in a singly linked list. At |
653 | least coff needs to be able to rearrange them from time to time, for | |
654 | which a doubly linked list is much more convenient. Loic did these | |
655 | as macros which seemed dangerous to me so they're now functions. | |
656 | xoxorich. */ | |
657 | ||
658 | /* Link symbol ADDME after symbol TARGET in the chain. */ | |
252b5132 | 659 | |
7c743825 | 660 | void |
252b5132 RH |
661 | symbol_append (addme, target, rootPP, lastPP) |
662 | symbolS *addme; | |
663 | symbolS *target; | |
664 | symbolS **rootPP; | |
665 | symbolS **lastPP; | |
666 | { | |
49309057 ILT |
667 | if (LOCAL_SYMBOL_CHECK (addme)) |
668 | abort (); | |
669 | if (target != NULL && LOCAL_SYMBOL_CHECK (target)) | |
670 | abort (); | |
671 | ||
252b5132 RH |
672 | if (target == NULL) |
673 | { | |
674 | know (*rootPP == NULL); | |
675 | know (*lastPP == NULL); | |
676 | addme->sy_next = NULL; | |
677 | #ifdef SYMBOLS_NEED_BACKPOINTERS | |
678 | addme->sy_previous = NULL; | |
679 | #endif | |
680 | *rootPP = addme; | |
681 | *lastPP = addme; | |
682 | return; | |
7c743825 | 683 | } /* if the list is empty */ |
252b5132 RH |
684 | |
685 | if (target->sy_next != NULL) | |
686 | { | |
687 | #ifdef SYMBOLS_NEED_BACKPOINTERS | |
688 | target->sy_next->sy_previous = addme; | |
689 | #endif /* SYMBOLS_NEED_BACKPOINTERS */ | |
690 | } | |
691 | else | |
692 | { | |
693 | know (*lastPP == target); | |
694 | *lastPP = addme; | |
7c743825 | 695 | } /* if we have a next */ |
252b5132 RH |
696 | |
697 | addme->sy_next = target->sy_next; | |
698 | target->sy_next = addme; | |
699 | ||
700 | #ifdef SYMBOLS_NEED_BACKPOINTERS | |
701 | addme->sy_previous = target; | |
702 | #endif /* SYMBOLS_NEED_BACKPOINTERS */ | |
703 | ||
704 | debug_verify_symchain (symbol_rootP, symbol_lastP); | |
705 | } | |
706 | ||
7c743825 KH |
707 | /* Set the chain pointers of SYMBOL to null. */ |
708 | ||
709 | void | |
252b5132 RH |
710 | symbol_clear_list_pointers (symbolP) |
711 | symbolS *symbolP; | |
712 | { | |
49309057 ILT |
713 | if (LOCAL_SYMBOL_CHECK (symbolP)) |
714 | abort (); | |
252b5132 RH |
715 | symbolP->sy_next = NULL; |
716 | #ifdef SYMBOLS_NEED_BACKPOINTERS | |
717 | symbolP->sy_previous = NULL; | |
718 | #endif | |
719 | } | |
720 | ||
721 | #ifdef SYMBOLS_NEED_BACKPOINTERS | |
7c743825 KH |
722 | /* Remove SYMBOLP from the list. */ |
723 | ||
724 | void | |
252b5132 RH |
725 | symbol_remove (symbolP, rootPP, lastPP) |
726 | symbolS *symbolP; | |
727 | symbolS **rootPP; | |
728 | symbolS **lastPP; | |
729 | { | |
49309057 ILT |
730 | if (LOCAL_SYMBOL_CHECK (symbolP)) |
731 | abort (); | |
732 | ||
252b5132 RH |
733 | if (symbolP == *rootPP) |
734 | { | |
735 | *rootPP = symbolP->sy_next; | |
7c743825 | 736 | } /* if it was the root */ |
252b5132 RH |
737 | |
738 | if (symbolP == *lastPP) | |
739 | { | |
740 | *lastPP = symbolP->sy_previous; | |
7c743825 | 741 | } /* if it was the tail */ |
252b5132 RH |
742 | |
743 | if (symbolP->sy_next != NULL) | |
744 | { | |
745 | symbolP->sy_next->sy_previous = symbolP->sy_previous; | |
7c743825 | 746 | } /* if not last */ |
252b5132 RH |
747 | |
748 | if (symbolP->sy_previous != NULL) | |
749 | { | |
750 | symbolP->sy_previous->sy_next = symbolP->sy_next; | |
7c743825 | 751 | } /* if not first */ |
252b5132 RH |
752 | |
753 | debug_verify_symchain (*rootPP, *lastPP); | |
754 | } | |
755 | ||
7c743825 KH |
756 | /* Link symbol ADDME before symbol TARGET in the chain. */ |
757 | ||
758 | void | |
252b5132 RH |
759 | symbol_insert (addme, target, rootPP, lastPP) |
760 | symbolS *addme; | |
761 | symbolS *target; | |
762 | symbolS **rootPP; | |
ab9da554 | 763 | symbolS **lastPP ATTRIBUTE_UNUSED; |
252b5132 | 764 | { |
49309057 ILT |
765 | if (LOCAL_SYMBOL_CHECK (addme)) |
766 | abort (); | |
767 | if (LOCAL_SYMBOL_CHECK (target)) | |
768 | abort (); | |
769 | ||
252b5132 RH |
770 | if (target->sy_previous != NULL) |
771 | { | |
772 | target->sy_previous->sy_next = addme; | |
773 | } | |
774 | else | |
775 | { | |
776 | know (*rootPP == target); | |
777 | *rootPP = addme; | |
7c743825 | 778 | } /* if not first */ |
252b5132 RH |
779 | |
780 | addme->sy_previous = target->sy_previous; | |
781 | target->sy_previous = addme; | |
782 | addme->sy_next = target; | |
783 | ||
784 | debug_verify_symchain (*rootPP, *lastPP); | |
785 | } | |
786 | ||
787 | #endif /* SYMBOLS_NEED_BACKPOINTERS */ | |
788 | ||
7c743825 | 789 | void |
252b5132 RH |
790 | verify_symbol_chain (rootP, lastP) |
791 | symbolS *rootP; | |
792 | symbolS *lastP; | |
793 | { | |
794 | symbolS *symbolP = rootP; | |
795 | ||
796 | if (symbolP == NULL) | |
797 | return; | |
798 | ||
799 | for (; symbol_next (symbolP) != NULL; symbolP = symbol_next (symbolP)) | |
800 | { | |
49309057 ILT |
801 | #ifdef BFD_ASSEMBLER |
802 | assert (symbolP->bsym != NULL); | |
803 | #endif | |
252b5132 RH |
804 | #ifdef SYMBOLS_NEED_BACKPOINTERS |
805 | assert (symbolP->sy_next->sy_previous == symbolP); | |
806 | #else | |
807 | /* Walk the list anyways, to make sure pointers are still good. */ | |
808 | ; | |
809 | #endif /* SYMBOLS_NEED_BACKPOINTERS */ | |
810 | } | |
811 | ||
812 | assert (lastP == symbolP); | |
813 | } | |
814 | ||
815 | void | |
816 | verify_symbol_chain_2 (sym) | |
817 | symbolS *sym; | |
818 | { | |
819 | symbolS *p = sym, *n = sym; | |
820 | #ifdef SYMBOLS_NEED_BACKPOINTERS | |
821 | while (symbol_previous (p)) | |
822 | p = symbol_previous (p); | |
823 | #endif | |
824 | while (symbol_next (n)) | |
825 | n = symbol_next (n); | |
826 | verify_symbol_chain (p, n); | |
827 | } | |
828 | ||
829 | /* Resolve the value of a symbol. This is called during the final | |
830 | pass over the symbol table to resolve any symbols with complex | |
831 | values. */ | |
832 | ||
833 | valueT | |
6386f3a7 | 834 | resolve_symbol_value (symp) |
252b5132 | 835 | symbolS *symp; |
252b5132 RH |
836 | { |
837 | int resolved; | |
838 | valueT final_val; | |
839 | segT final_seg; | |
840 | ||
a1605869 | 841 | #ifdef BFD_ASSEMBLER |
49309057 ILT |
842 | if (LOCAL_SYMBOL_CHECK (symp)) |
843 | { | |
844 | struct local_symbol *locsym = (struct local_symbol *) symp; | |
845 | ||
846 | if (local_symbol_resolved_p (locsym)) | |
24ef8152 | 847 | return locsym->lsy_offset / bfd_octets_per_byte (stdoutput); |
49309057 ILT |
848 | |
849 | final_val = (local_symbol_get_frag (locsym)->fr_address | |
24ef8152 | 850 | + locsym->lsy_offset) / bfd_octets_per_byte (stdoutput); |
49309057 | 851 | |
6386f3a7 | 852 | if (finalize_syms) |
49309057 ILT |
853 | { |
854 | locsym->lsy_offset = final_val; | |
855 | local_symbol_mark_resolved (locsym); | |
856 | } | |
857 | ||
858 | return final_val; | |
859 | } | |
a1605869 | 860 | #endif |
49309057 | 861 | |
252b5132 RH |
862 | if (symp->sy_resolved) |
863 | { | |
864 | if (symp->sy_value.X_op == O_constant) | |
865 | return (valueT) symp->sy_value.X_add_number; | |
866 | else | |
867 | return 0; | |
868 | } | |
869 | ||
870 | resolved = 0; | |
871 | final_seg = S_GET_SEGMENT (symp); | |
872 | ||
873 | if (symp->sy_resolving) | |
874 | { | |
6386f3a7 | 875 | if (finalize_syms) |
7c743825 KH |
876 | as_bad (_("Symbol definition loop encountered at %s"), |
877 | S_GET_NAME (symp)); | |
252b5132 RH |
878 | final_val = 0; |
879 | resolved = 1; | |
880 | } | |
881 | else | |
882 | { | |
883 | symbolS *add_symbol, *op_symbol; | |
884 | offsetT left, right; | |
885 | segT seg_left, seg_right; | |
886 | operatorT op; | |
887 | ||
888 | symp->sy_resolving = 1; | |
889 | ||
890 | /* Help out with CSE. */ | |
891 | add_symbol = symp->sy_value.X_add_symbol; | |
892 | op_symbol = symp->sy_value.X_op_symbol; | |
893 | final_val = symp->sy_value.X_add_number; | |
894 | op = symp->sy_value.X_op; | |
895 | ||
896 | switch (op) | |
897 | { | |
898 | default: | |
899 | BAD_CASE (op); | |
900 | break; | |
901 | ||
902 | case O_absent: | |
903 | final_val = 0; | |
904 | /* Fall through. */ | |
905 | ||
906 | case O_constant: | |
bea9907b | 907 | final_val += symp->sy_frag->fr_address / OCTETS_PER_BYTE; |
252b5132 RH |
908 | if (final_seg == expr_section) |
909 | final_seg = absolute_section; | |
910 | resolved = 1; | |
911 | break; | |
912 | ||
913 | case O_symbol: | |
914 | case O_symbol_rva: | |
6386f3a7 | 915 | left = resolve_symbol_value (add_symbol); |
252b5132 RH |
916 | do_symbol: |
917 | ||
918 | if (symp->sy_mri_common) | |
919 | { | |
920 | /* This is a symbol inside an MRI common section. The | |
921 | relocation routines are going to handle it specially. | |
922 | Don't change the value. */ | |
49309057 | 923 | resolved = symbol_resolved_p (add_symbol); |
252b5132 RH |
924 | break; |
925 | } | |
926 | ||
6386f3a7 | 927 | if (finalize_syms && final_val == 0) |
49309057 ILT |
928 | { |
929 | if (LOCAL_SYMBOL_CHECK (add_symbol)) | |
930 | add_symbol = local_symbol_convert ((struct local_symbol *) | |
931 | add_symbol); | |
932 | copy_symbol_attributes (symp, add_symbol); | |
933 | } | |
252b5132 RH |
934 | |
935 | /* If we have equated this symbol to an undefined symbol, we | |
936 | keep X_op set to O_symbol, and we don't change | |
937 | X_add_number. This permits the routine which writes out | |
938 | relocation to detect this case, and convert the | |
939 | relocation to be against the symbol to which this symbol | |
940 | is equated. */ | |
941 | if (! S_IS_DEFINED (add_symbol) || S_IS_COMMON (add_symbol)) | |
942 | { | |
6386f3a7 | 943 | if (finalize_syms) |
252b5132 RH |
944 | { |
945 | S_SET_SEGMENT (symp, S_GET_SEGMENT (add_symbol)); | |
946 | symp->sy_value.X_op = O_symbol; | |
947 | symp->sy_value.X_add_symbol = add_symbol; | |
948 | symp->sy_value.X_add_number = final_val; | |
949 | } | |
950 | final_val = 0; | |
49309057 | 951 | resolved = symbol_resolved_p (add_symbol); |
c89c8534 | 952 | symp->sy_resolving = 0; |
252b5132 RH |
953 | goto exit_dont_set_value; |
954 | } | |
955 | else | |
956 | { | |
957 | final_val += symp->sy_frag->fr_address + left; | |
958 | if (final_seg == expr_section || final_seg == undefined_section) | |
959 | final_seg = S_GET_SEGMENT (add_symbol); | |
960 | } | |
961 | ||
49309057 | 962 | resolved = symbol_resolved_p (add_symbol); |
252b5132 RH |
963 | break; |
964 | ||
965 | case O_uminus: | |
966 | case O_bit_not: | |
967 | case O_logical_not: | |
6386f3a7 | 968 | left = resolve_symbol_value (add_symbol); |
252b5132 RH |
969 | |
970 | if (op == O_uminus) | |
971 | left = -left; | |
972 | else if (op == O_logical_not) | |
973 | left = !left; | |
974 | else | |
975 | left = ~left; | |
976 | ||
977 | final_val += left + symp->sy_frag->fr_address; | |
978 | if (final_seg == expr_section || final_seg == undefined_section) | |
979 | final_seg = absolute_section; | |
980 | ||
49309057 | 981 | resolved = symbol_resolved_p (add_symbol); |
252b5132 RH |
982 | break; |
983 | ||
984 | case O_multiply: | |
985 | case O_divide: | |
986 | case O_modulus: | |
987 | case O_left_shift: | |
988 | case O_right_shift: | |
989 | case O_bit_inclusive_or: | |
990 | case O_bit_or_not: | |
991 | case O_bit_exclusive_or: | |
992 | case O_bit_and: | |
993 | case O_add: | |
994 | case O_subtract: | |
995 | case O_eq: | |
996 | case O_ne: | |
997 | case O_lt: | |
998 | case O_le: | |
999 | case O_ge: | |
1000 | case O_gt: | |
1001 | case O_logical_and: | |
1002 | case O_logical_or: | |
6386f3a7 AM |
1003 | left = resolve_symbol_value (add_symbol); |
1004 | right = resolve_symbol_value (op_symbol); | |
252b5132 RH |
1005 | seg_left = S_GET_SEGMENT (add_symbol); |
1006 | seg_right = S_GET_SEGMENT (op_symbol); | |
1007 | ||
1008 | /* Simplify addition or subtraction of a constant by folding the | |
1009 | constant into X_add_number. */ | |
1010 | if (op == O_add || op == O_subtract) | |
1011 | { | |
1012 | if (seg_right == absolute_section) | |
1013 | { | |
1014 | if (op == O_add) | |
1015 | final_val += right; | |
1016 | else | |
1017 | final_val -= right; | |
1018 | op = O_symbol; | |
1019 | op_symbol = NULL; | |
1020 | goto do_symbol; | |
1021 | } | |
1022 | else if (seg_left == absolute_section && op == O_add) | |
1023 | { | |
1024 | op = O_symbol; | |
1025 | final_val += left; | |
1026 | add_symbol = op_symbol; | |
1027 | left = right; | |
1028 | op_symbol = NULL; | |
1029 | goto do_symbol; | |
1030 | } | |
1031 | } | |
1032 | ||
1033 | /* Subtraction is permitted if both operands are in the same | |
1034 | section. Otherwise, both operands must be absolute. We | |
1035 | already handled the case of addition or subtraction of a | |
1036 | constant above. This will probably need to be changed | |
1037 | for an object file format which supports arbitrary | |
1038 | expressions, such as IEEE-695. */ | |
1039 | /* Don't emit messages unless we're finalizing the symbol value, | |
1040 | otherwise we may get the same message multiple times. */ | |
9b4d630b ILT |
1041 | if ((seg_left != absolute_section |
1042 | || seg_right != absolute_section) | |
1043 | && (op != O_subtract | |
1044 | || seg_left != seg_right | |
1045 | || seg_left == undefined_section) | |
6386f3a7 | 1046 | && finalize_syms) |
252b5132 RH |
1047 | { |
1048 | char *file; | |
1049 | unsigned int line; | |
1050 | ||
1051 | if (expr_symbol_where (symp, &file, &line)) | |
1052 | { | |
1053 | if (seg_left == undefined_section) | |
1054 | as_bad_where (file, line, | |
1055 | _("undefined symbol %s in operation"), | |
1056 | S_GET_NAME (symp->sy_value.X_add_symbol)); | |
1057 | if (seg_right == undefined_section) | |
1058 | as_bad_where (file, line, | |
1059 | _("undefined symbol %s in operation"), | |
1060 | S_GET_NAME (symp->sy_value.X_op_symbol)); | |
1061 | if (seg_left != undefined_section | |
1062 | && seg_right != undefined_section) | |
7c743825 KH |
1063 | as_bad_where (file, line, |
1064 | _("invalid section for operation")); | |
252b5132 RH |
1065 | } |
1066 | else | |
1067 | { | |
1068 | if (seg_left == undefined_section) | |
1069 | as_bad (_("undefined symbol %s in operation setting %s"), | |
1070 | S_GET_NAME (symp->sy_value.X_add_symbol), | |
1071 | S_GET_NAME (symp)); | |
1072 | if (seg_right == undefined_section) | |
1073 | as_bad (_("undefined symbol %s in operation setting %s"), | |
1074 | S_GET_NAME (symp->sy_value.X_op_symbol), | |
1075 | S_GET_NAME (symp)); | |
1076 | if (seg_left != undefined_section | |
1077 | && seg_right != undefined_section) | |
1078 | as_bad (_("invalid section for operation setting %s"), | |
1079 | S_GET_NAME (symp)); | |
1080 | } | |
1081 | } | |
1082 | ||
1083 | /* Check for division by zero. */ | |
1084 | if ((op == O_divide || op == O_modulus) && right == 0) | |
1085 | { | |
1086 | /* If seg_right is not absolute_section, then we've | |
1087 | already issued a warning about using a bad symbol. */ | |
6386f3a7 | 1088 | if (seg_right == absolute_section && finalize_syms) |
252b5132 RH |
1089 | { |
1090 | char *file; | |
1091 | unsigned int line; | |
1092 | ||
1093 | if (expr_symbol_where (symp, &file, &line)) | |
1094 | as_bad_where (file, line, _("division by zero")); | |
1095 | else | |
1096 | as_bad (_("division by zero when setting %s"), | |
1097 | S_GET_NAME (symp)); | |
1098 | } | |
1099 | ||
1100 | right = 1; | |
1101 | } | |
1102 | ||
1103 | switch (symp->sy_value.X_op) | |
1104 | { | |
1105 | case O_multiply: left *= right; break; | |
1106 | case O_divide: left /= right; break; | |
1107 | case O_modulus: left %= right; break; | |
1108 | case O_left_shift: left <<= right; break; | |
1109 | case O_right_shift: left >>= right; break; | |
1110 | case O_bit_inclusive_or: left |= right; break; | |
1111 | case O_bit_or_not: left |= ~right; break; | |
1112 | case O_bit_exclusive_or: left ^= right; break; | |
1113 | case O_bit_and: left &= right; break; | |
1114 | case O_add: left += right; break; | |
1115 | case O_subtract: left -= right; break; | |
1116 | case O_eq: left = left == right ? ~ (offsetT) 0 : 0; break; | |
1117 | case O_ne: left = left != right ? ~ (offsetT) 0 : 0; break; | |
1118 | case O_lt: left = left < right ? ~ (offsetT) 0 : 0; break; | |
1119 | case O_le: left = left <= right ? ~ (offsetT) 0 : 0; break; | |
1120 | case O_ge: left = left >= right ? ~ (offsetT) 0 : 0; break; | |
1121 | case O_gt: left = left > right ? ~ (offsetT) 0 : 0; break; | |
1122 | case O_logical_and: left = left && right; break; | |
1123 | case O_logical_or: left = left || right; break; | |
1124 | default: abort (); | |
1125 | } | |
1126 | ||
1127 | final_val += symp->sy_frag->fr_address + left; | |
1128 | if (final_seg == expr_section || final_seg == undefined_section) | |
1129 | final_seg = absolute_section; | |
49309057 ILT |
1130 | resolved = (symbol_resolved_p (add_symbol) |
1131 | && symbol_resolved_p (op_symbol)); | |
7c743825 | 1132 | break; |
252b5132 RH |
1133 | |
1134 | case O_register: | |
1135 | case O_big: | |
1136 | case O_illegal: | |
1137 | /* Give an error (below) if not in expr_section. We don't | |
1138 | want to worry about expr_section symbols, because they | |
1139 | are fictional (they are created as part of expression | |
1140 | resolution), and any problems may not actually mean | |
1141 | anything. */ | |
1142 | break; | |
1143 | } | |
1144 | ||
1145 | symp->sy_resolving = 0; | |
1146 | } | |
1147 | ||
6386f3a7 | 1148 | if (finalize_syms) |
252b5132 RH |
1149 | { |
1150 | S_SET_VALUE (symp, final_val); | |
1151 | ||
1152 | #if defined (OBJ_AOUT) && ! defined (BFD_ASSEMBLER) | |
1153 | /* The old a.out backend does not handle S_SET_SEGMENT correctly | |
1154 | for a stab symbol, so we use this bad hack. */ | |
1155 | if (final_seg != S_GET_SEGMENT (symp)) | |
1156 | #endif | |
1157 | S_SET_SEGMENT (symp, final_seg); | |
1158 | } | |
1159 | ||
1160 | exit_dont_set_value: | |
1161 | /* Don't worry if we can't resolve an expr_section symbol. */ | |
6386f3a7 | 1162 | if (finalize_syms) |
252b5132 RH |
1163 | { |
1164 | if (resolved) | |
1165 | symp->sy_resolved = 1; | |
1166 | else if (S_GET_SEGMENT (symp) != expr_section) | |
1167 | { | |
7c743825 KH |
1168 | as_bad (_("can't resolve value for symbol \"%s\""), |
1169 | S_GET_NAME (symp)); | |
252b5132 RH |
1170 | symp->sy_resolved = 1; |
1171 | } | |
1172 | } | |
1173 | ||
1174 | return final_val; | |
1175 | } | |
1176 | ||
49309057 ILT |
1177 | #ifdef BFD_ASSEMBLER |
1178 | ||
1179 | static void resolve_local_symbol PARAMS ((const char *, PTR)); | |
1180 | ||
1181 | /* A static function passed to hash_traverse. */ | |
1182 | ||
1183 | static void | |
1184 | resolve_local_symbol (key, value) | |
ab9da554 | 1185 | const char *key ATTRIBUTE_UNUSED; |
49309057 ILT |
1186 | PTR value; |
1187 | { | |
1188 | if (value != NULL) | |
6386f3a7 | 1189 | resolve_symbol_value (value); |
49309057 ILT |
1190 | } |
1191 | ||
1192 | #endif | |
1193 | ||
1194 | /* Resolve all local symbols. */ | |
1195 | ||
1196 | void | |
1197 | resolve_local_symbol_values () | |
1198 | { | |
1199 | #ifdef BFD_ASSEMBLER | |
1200 | hash_traverse (local_hash, resolve_local_symbol); | |
1201 | #endif | |
1202 | } | |
1203 | ||
252b5132 RH |
1204 | /* Dollar labels look like a number followed by a dollar sign. Eg, "42$". |
1205 | They are *really* local. That is, they go out of scope whenever we see a | |
1206 | label that isn't local. Also, like fb labels, there can be multiple | |
1207 | instances of a dollar label. Therefor, we name encode each instance with | |
1208 | the instance number, keep a list of defined symbols separate from the real | |
1209 | symbol table, and we treat these buggers as a sparse array. */ | |
1210 | ||
1211 | static long *dollar_labels; | |
1212 | static long *dollar_label_instances; | |
1213 | static char *dollar_label_defines; | |
1214 | static unsigned long dollar_label_count; | |
1215 | static unsigned long dollar_label_max; | |
1216 | ||
7c743825 | 1217 | int |
252b5132 RH |
1218 | dollar_label_defined (label) |
1219 | long label; | |
1220 | { | |
1221 | long *i; | |
1222 | ||
1223 | know ((dollar_labels != NULL) || (dollar_label_count == 0)); | |
1224 | ||
1225 | for (i = dollar_labels; i < dollar_labels + dollar_label_count; ++i) | |
1226 | if (*i == label) | |
1227 | return dollar_label_defines[i - dollar_labels]; | |
1228 | ||
7c743825 | 1229 | /* If we get here, label isn't defined. */ |
252b5132 | 1230 | return 0; |
7c743825 | 1231 | } |
252b5132 RH |
1232 | |
1233 | static long | |
1234 | dollar_label_instance (label) | |
1235 | long label; | |
1236 | { | |
1237 | long *i; | |
1238 | ||
1239 | know ((dollar_labels != NULL) || (dollar_label_count == 0)); | |
1240 | ||
1241 | for (i = dollar_labels; i < dollar_labels + dollar_label_count; ++i) | |
1242 | if (*i == label) | |
1243 | return (dollar_label_instances[i - dollar_labels]); | |
1244 | ||
7c743825 KH |
1245 | /* If we get here, we haven't seen the label before. |
1246 | Therefore its instance count is zero. */ | |
252b5132 RH |
1247 | return 0; |
1248 | } | |
1249 | ||
7c743825 | 1250 | void |
252b5132 RH |
1251 | dollar_label_clear () |
1252 | { | |
1253 | memset (dollar_label_defines, '\0', (unsigned int) dollar_label_count); | |
1254 | } | |
1255 | ||
1256 | #define DOLLAR_LABEL_BUMP_BY 10 | |
1257 | ||
7c743825 | 1258 | void |
252b5132 RH |
1259 | define_dollar_label (label) |
1260 | long label; | |
1261 | { | |
1262 | long *i; | |
1263 | ||
1264 | for (i = dollar_labels; i < dollar_labels + dollar_label_count; ++i) | |
1265 | if (*i == label) | |
1266 | { | |
1267 | ++dollar_label_instances[i - dollar_labels]; | |
1268 | dollar_label_defines[i - dollar_labels] = 1; | |
1269 | return; | |
1270 | } | |
1271 | ||
7c743825 | 1272 | /* If we get to here, we don't have label listed yet. */ |
252b5132 RH |
1273 | |
1274 | if (dollar_labels == NULL) | |
1275 | { | |
1276 | dollar_labels = (long *) xmalloc (DOLLAR_LABEL_BUMP_BY * sizeof (long)); | |
1277 | dollar_label_instances = (long *) xmalloc (DOLLAR_LABEL_BUMP_BY * sizeof (long)); | |
1278 | dollar_label_defines = xmalloc (DOLLAR_LABEL_BUMP_BY); | |
1279 | dollar_label_max = DOLLAR_LABEL_BUMP_BY; | |
1280 | dollar_label_count = 0; | |
1281 | } | |
1282 | else if (dollar_label_count == dollar_label_max) | |
1283 | { | |
1284 | dollar_label_max += DOLLAR_LABEL_BUMP_BY; | |
1285 | dollar_labels = (long *) xrealloc ((char *) dollar_labels, | |
1286 | dollar_label_max * sizeof (long)); | |
1287 | dollar_label_instances = (long *) xrealloc ((char *) dollar_label_instances, | |
1288 | dollar_label_max * sizeof (long)); | |
1289 | dollar_label_defines = xrealloc (dollar_label_defines, dollar_label_max); | |
7c743825 | 1290 | } /* if we needed to grow */ |
252b5132 RH |
1291 | |
1292 | dollar_labels[dollar_label_count] = label; | |
1293 | dollar_label_instances[dollar_label_count] = 1; | |
1294 | dollar_label_defines[dollar_label_count] = 1; | |
1295 | ++dollar_label_count; | |
1296 | } | |
1297 | ||
7c743825 KH |
1298 | /* Caller must copy returned name: we re-use the area for the next name. |
1299 | ||
1300 | The mth occurence of label n: is turned into the symbol "Ln^Am" | |
1301 | where n is the label number and m is the instance number. "L" makes | |
1302 | it a label discarded unless debugging and "^A"('\1') ensures no | |
1303 | ordinary symbol SHOULD get the same name as a local label | |
1304 | symbol. The first "4:" is "L4^A1" - the m numbers begin at 1. | |
1305 | ||
1306 | fb labels get the same treatment, except that ^B is used in place | |
1307 | of ^A. */ | |
1308 | ||
1309 | char * /* Return local label name. */ | |
252b5132 | 1310 | dollar_label_name (n, augend) |
7c743825 KH |
1311 | register long n; /* we just saw "n$:" : n a number. */ |
1312 | register int augend; /* 0 for current instance, 1 for new instance. */ | |
252b5132 RH |
1313 | { |
1314 | long i; | |
7c743825 | 1315 | /* Returned to caller, then copied. Used for created names ("4f"). */ |
252b5132 RH |
1316 | static char symbol_name_build[24]; |
1317 | register char *p; | |
1318 | register char *q; | |
7c743825 | 1319 | char symbol_name_temporary[20]; /* Build up a number, BACKWARDS. */ |
252b5132 RH |
1320 | |
1321 | know (n >= 0); | |
1322 | know (augend == 0 || augend == 1); | |
1323 | p = symbol_name_build; | |
f84dd1f0 NC |
1324 | #ifdef LOCAL_LABEL_PREFIX |
1325 | *p++ = LOCAL_LABEL_PREFIX; | |
1326 | #endif | |
252b5132 RH |
1327 | *p++ = 'L'; |
1328 | ||
7c743825 KH |
1329 | /* Next code just does sprintf( {}, "%d", n); */ |
1330 | /* Label number. */ | |
252b5132 RH |
1331 | q = symbol_name_temporary; |
1332 | for (*q++ = 0, i = n; i; ++q) | |
1333 | { | |
1334 | *q = i % 10 + '0'; | |
1335 | i /= 10; | |
1336 | } | |
1337 | while ((*p = *--q) != '\0') | |
1338 | ++p; | |
1339 | ||
aa257fcd | 1340 | *p++ = DOLLAR_LABEL_CHAR; /* ^A */ |
252b5132 | 1341 | |
7c743825 | 1342 | /* Instance number. */ |
252b5132 RH |
1343 | q = symbol_name_temporary; |
1344 | for (*q++ = 0, i = dollar_label_instance (n) + augend; i; ++q) | |
1345 | { | |
1346 | *q = i % 10 + '0'; | |
1347 | i /= 10; | |
1348 | } | |
1349 | while ((*p++ = *--q) != '\0');; | |
1350 | ||
7c743825 | 1351 | /* The label, as a '\0' ended string, starts at symbol_name_build. */ |
252b5132 RH |
1352 | return symbol_name_build; |
1353 | } | |
1354 | ||
7c743825 KH |
1355 | /* Sombody else's idea of local labels. They are made by "n:" where n |
1356 | is any decimal digit. Refer to them with | |
1357 | "nb" for previous (backward) n: | |
1358 | or "nf" for next (forward) n:. | |
1359 | ||
1360 | We do a little better and let n be any number, not just a single digit, but | |
1361 | since the other guy's assembler only does ten, we treat the first ten | |
1362 | specially. | |
1363 | ||
1364 | Like someone else's assembler, we have one set of local label counters for | |
1365 | entire assembly, not one set per (sub)segment like in most assemblers. This | |
1366 | implies that one can refer to a label in another segment, and indeed some | |
1367 | crufty compilers have done just that. | |
1368 | ||
1369 | Since there could be a LOT of these things, treat them as a sparse | |
1370 | array. */ | |
252b5132 RH |
1371 | |
1372 | #define FB_LABEL_SPECIAL (10) | |
1373 | ||
1374 | static long fb_low_counter[FB_LABEL_SPECIAL]; | |
1375 | static long *fb_labels; | |
1376 | static long *fb_label_instances; | |
1377 | static long fb_label_count; | |
1378 | static long fb_label_max; | |
1379 | ||
7c743825 | 1380 | /* This must be more than FB_LABEL_SPECIAL. */ |
252b5132 RH |
1381 | #define FB_LABEL_BUMP_BY (FB_LABEL_SPECIAL + 6) |
1382 | ||
7c743825 | 1383 | static void |
252b5132 RH |
1384 | fb_label_init () |
1385 | { | |
1386 | memset ((void *) fb_low_counter, '\0', sizeof (fb_low_counter)); | |
7c743825 | 1387 | } |
252b5132 | 1388 | |
7c743825 KH |
1389 | /* Add one to the instance number of this fb label. */ |
1390 | ||
1391 | void | |
252b5132 RH |
1392 | fb_label_instance_inc (label) |
1393 | long label; | |
1394 | { | |
1395 | long *i; | |
1396 | ||
1397 | if (label < FB_LABEL_SPECIAL) | |
1398 | { | |
1399 | ++fb_low_counter[label]; | |
1400 | return; | |
1401 | } | |
1402 | ||
1403 | if (fb_labels != NULL) | |
1404 | { | |
1405 | for (i = fb_labels + FB_LABEL_SPECIAL; | |
1406 | i < fb_labels + fb_label_count; ++i) | |
1407 | { | |
1408 | if (*i == label) | |
1409 | { | |
1410 | ++fb_label_instances[i - fb_labels]; | |
1411 | return; | |
7c743825 KH |
1412 | } /* if we find it */ |
1413 | } /* for each existing label */ | |
252b5132 RH |
1414 | } |
1415 | ||
7c743825 | 1416 | /* If we get to here, we don't have label listed yet. */ |
252b5132 RH |
1417 | |
1418 | if (fb_labels == NULL) | |
1419 | { | |
1420 | fb_labels = (long *) xmalloc (FB_LABEL_BUMP_BY * sizeof (long)); | |
1421 | fb_label_instances = (long *) xmalloc (FB_LABEL_BUMP_BY * sizeof (long)); | |
1422 | fb_label_max = FB_LABEL_BUMP_BY; | |
1423 | fb_label_count = FB_LABEL_SPECIAL; | |
1424 | ||
1425 | } | |
1426 | else if (fb_label_count == fb_label_max) | |
1427 | { | |
1428 | fb_label_max += FB_LABEL_BUMP_BY; | |
1429 | fb_labels = (long *) xrealloc ((char *) fb_labels, | |
1430 | fb_label_max * sizeof (long)); | |
1431 | fb_label_instances = (long *) xrealloc ((char *) fb_label_instances, | |
1432 | fb_label_max * sizeof (long)); | |
7c743825 | 1433 | } /* if we needed to grow */ |
252b5132 RH |
1434 | |
1435 | fb_labels[fb_label_count] = label; | |
1436 | fb_label_instances[fb_label_count] = 1; | |
1437 | ++fb_label_count; | |
1438 | } | |
1439 | ||
7c743825 | 1440 | static long |
252b5132 RH |
1441 | fb_label_instance (label) |
1442 | long label; | |
1443 | { | |
1444 | long *i; | |
1445 | ||
1446 | if (label < FB_LABEL_SPECIAL) | |
1447 | { | |
1448 | return (fb_low_counter[label]); | |
1449 | } | |
1450 | ||
1451 | if (fb_labels != NULL) | |
1452 | { | |
1453 | for (i = fb_labels + FB_LABEL_SPECIAL; | |
1454 | i < fb_labels + fb_label_count; ++i) | |
1455 | { | |
1456 | if (*i == label) | |
1457 | { | |
1458 | return (fb_label_instances[i - fb_labels]); | |
7c743825 KH |
1459 | } /* if we find it */ |
1460 | } /* for each existing label */ | |
252b5132 RH |
1461 | } |
1462 | ||
1463 | /* We didn't find the label, so this must be a reference to the | |
1464 | first instance. */ | |
1465 | return 0; | |
1466 | } | |
1467 | ||
7c743825 KH |
1468 | /* Caller must copy returned name: we re-use the area for the next name. |
1469 | ||
1470 | The mth occurence of label n: is turned into the symbol "Ln^Bm" | |
1471 | where n is the label number and m is the instance number. "L" makes | |
1472 | it a label discarded unless debugging and "^B"('\2') ensures no | |
1473 | ordinary symbol SHOULD get the same name as a local label | |
1474 | symbol. The first "4:" is "L4^B1" - the m numbers begin at 1. | |
1475 | ||
1476 | dollar labels get the same treatment, except that ^A is used in | |
1477 | place of ^B. */ | |
1478 | ||
1479 | char * /* Return local label name. */ | |
252b5132 | 1480 | fb_label_name (n, augend) |
7c743825 KH |
1481 | long n; /* We just saw "n:", "nf" or "nb" : n a number. */ |
1482 | long augend; /* 0 for nb, 1 for n:, nf. */ | |
252b5132 RH |
1483 | { |
1484 | long i; | |
7c743825 | 1485 | /* Returned to caller, then copied. Used for created names ("4f"). */ |
252b5132 RH |
1486 | static char symbol_name_build[24]; |
1487 | register char *p; | |
1488 | register char *q; | |
7c743825 | 1489 | char symbol_name_temporary[20]; /* Build up a number, BACKWARDS. */ |
252b5132 RH |
1490 | |
1491 | know (n >= 0); | |
1492 | know (augend == 0 || augend == 1); | |
1493 | p = symbol_name_build; | |
aa257fcd NC |
1494 | #ifdef LOCAL_LABEL_PREFIX |
1495 | *p++ = LOCAL_LABEL_PREFIX; | |
1496 | #endif | |
252b5132 RH |
1497 | *p++ = 'L'; |
1498 | ||
7c743825 KH |
1499 | /* Next code just does sprintf( {}, "%d", n); */ |
1500 | /* Label number. */ | |
252b5132 RH |
1501 | q = symbol_name_temporary; |
1502 | for (*q++ = 0, i = n; i; ++q) | |
1503 | { | |
1504 | *q = i % 10 + '0'; | |
1505 | i /= 10; | |
1506 | } | |
1507 | while ((*p = *--q) != '\0') | |
1508 | ++p; | |
1509 | ||
aa257fcd | 1510 | *p++ = LOCAL_LABEL_CHAR; /* ^B */ |
252b5132 | 1511 | |
7c743825 | 1512 | /* Instance number. */ |
252b5132 RH |
1513 | q = symbol_name_temporary; |
1514 | for (*q++ = 0, i = fb_label_instance (n) + augend; i; ++q) | |
1515 | { | |
1516 | *q = i % 10 + '0'; | |
1517 | i /= 10; | |
1518 | } | |
1519 | while ((*p++ = *--q) != '\0');; | |
1520 | ||
7c743825 | 1521 | /* The label, as a '\0' ended string, starts at symbol_name_build. */ |
252b5132 | 1522 | return (symbol_name_build); |
7c743825 | 1523 | } |
252b5132 | 1524 | |
7c743825 KH |
1525 | /* Decode name that may have been generated by foo_label_name() above. |
1526 | If the name wasn't generated by foo_label_name(), then return it | |
1527 | unaltered. This is used for error messages. */ | |
252b5132 RH |
1528 | |
1529 | char * | |
1530 | decode_local_label_name (s) | |
1531 | char *s; | |
1532 | { | |
1533 | char *p; | |
1534 | char *symbol_decode; | |
1535 | int label_number; | |
1536 | int instance_number; | |
1537 | char *type; | |
d95767bf | 1538 | const char *message_format; |
aa257fcd | 1539 | int index = 0; |
43ad3147 | 1540 | |
aa257fcd NC |
1541 | #ifdef LOCAL_LABEL_PREFIX |
1542 | if (s[index] == LOCAL_LABEL_PREFIX) | |
1543 | ++index; | |
1544 | #endif | |
43ad3147 | 1545 | |
aa257fcd | 1546 | if (s[index] != 'L') |
252b5132 RH |
1547 | return s; |
1548 | ||
aa257fcd | 1549 | for (label_number = 0, p = s + index + 1; isdigit ((unsigned char) *p); ++p) |
252b5132 RH |
1550 | label_number = (10 * label_number) + *p - '0'; |
1551 | ||
aa257fcd | 1552 | if (*p == DOLLAR_LABEL_CHAR) |
252b5132 | 1553 | type = "dollar"; |
aa257fcd | 1554 | else if (*p == LOCAL_LABEL_CHAR) |
252b5132 RH |
1555 | type = "fb"; |
1556 | else | |
1557 | return s; | |
1558 | ||
1559 | for (instance_number = 0, p++; isdigit ((unsigned char) *p); ++p) | |
1560 | instance_number = (10 * instance_number) + *p - '0'; | |
1561 | ||
d95767bf | 1562 | message_format = _("\"%d\" (instance number %d of a %s label)"); |
252b5132 RH |
1563 | symbol_decode = obstack_alloc (¬es, strlen (message_format) + 30); |
1564 | sprintf (symbol_decode, message_format, label_number, instance_number, type); | |
1565 | ||
1566 | return symbol_decode; | |
1567 | } | |
1568 | ||
1569 | /* Get the value of a symbol. */ | |
1570 | ||
1571 | valueT | |
1572 | S_GET_VALUE (s) | |
1573 | symbolS *s; | |
1574 | { | |
a1605869 | 1575 | #ifdef BFD_ASSEMBLER |
49309057 ILT |
1576 | if (LOCAL_SYMBOL_CHECK (s)) |
1577 | return ((struct local_symbol *) s)->lsy_offset; | |
a1605869 | 1578 | #endif |
49309057 | 1579 | |
252b5132 | 1580 | if (!s->sy_resolved && s->sy_value.X_op != O_constant) |
e46d99eb | 1581 | { |
6386f3a7 AM |
1582 | valueT val = resolve_symbol_value (s); |
1583 | if (!finalize_syms) | |
e46d99eb AM |
1584 | return val; |
1585 | } | |
252b5132 RH |
1586 | if (s->sy_value.X_op != O_constant) |
1587 | { | |
1588 | static symbolS *recur; | |
1589 | ||
1590 | /* FIXME: In non BFD assemblers, S_IS_DEFINED and S_IS_COMMON | |
1591 | may call S_GET_VALUE. We use a static symbol to avoid the | |
1592 | immediate recursion. */ | |
1593 | if (recur == s) | |
1594 | return (valueT) s->sy_value.X_add_number; | |
1595 | recur = s; | |
1596 | if (! s->sy_resolved | |
1597 | || s->sy_value.X_op != O_symbol | |
1598 | || (S_IS_DEFINED (s) && ! S_IS_COMMON (s))) | |
1599 | as_bad (_("Attempt to get value of unresolved symbol %s"), | |
1600 | S_GET_NAME (s)); | |
1601 | recur = NULL; | |
1602 | } | |
1603 | return (valueT) s->sy_value.X_add_number; | |
1604 | } | |
1605 | ||
1606 | /* Set the value of a symbol. */ | |
1607 | ||
1608 | void | |
1609 | S_SET_VALUE (s, val) | |
1610 | symbolS *s; | |
1611 | valueT val; | |
1612 | { | |
a1605869 | 1613 | #ifdef BFD_ASSEMBLER |
49309057 ILT |
1614 | if (LOCAL_SYMBOL_CHECK (s)) |
1615 | { | |
1616 | ((struct local_symbol *) s)->lsy_offset = val; | |
1617 | return; | |
1618 | } | |
a1605869 | 1619 | #endif |
49309057 | 1620 | |
252b5132 RH |
1621 | s->sy_value.X_op = O_constant; |
1622 | s->sy_value.X_add_number = (offsetT) val; | |
1623 | s->sy_value.X_unsigned = 0; | |
1624 | } | |
1625 | ||
1626 | void | |
1627 | copy_symbol_attributes (dest, src) | |
1628 | symbolS *dest, *src; | |
1629 | { | |
49309057 | 1630 | if (LOCAL_SYMBOL_CHECK (dest)) |
7f2f689c | 1631 | dest = local_symbol_convert ((struct local_symbol *) dest); |
49309057 | 1632 | if (LOCAL_SYMBOL_CHECK (src)) |
7f2f689c | 1633 | src = local_symbol_convert ((struct local_symbol *) src); |
49309057 | 1634 | |
252b5132 RH |
1635 | #ifdef BFD_ASSEMBLER |
1636 | /* In an expression, transfer the settings of these flags. | |
1637 | The user can override later, of course. */ | |
1638 | #define COPIED_SYMFLAGS (BSF_FUNCTION | BSF_OBJECT) | |
1639 | dest->bsym->flags |= src->bsym->flags & COPIED_SYMFLAGS; | |
1640 | #endif | |
1641 | ||
1642 | #ifdef OBJ_COPY_SYMBOL_ATTRIBUTES | |
1643 | OBJ_COPY_SYMBOL_ATTRIBUTES (dest, src); | |
1644 | #endif | |
1645 | } | |
1646 | ||
1647 | #ifdef BFD_ASSEMBLER | |
1648 | ||
1649 | int | |
1650 | S_IS_FUNCTION (s) | |
1651 | symbolS *s; | |
1652 | { | |
49309057 ILT |
1653 | flagword flags; |
1654 | ||
1655 | if (LOCAL_SYMBOL_CHECK (s)) | |
1656 | return 0; | |
1657 | ||
1658 | flags = s->bsym->flags; | |
252b5132 RH |
1659 | |
1660 | return (flags & BSF_FUNCTION) != 0; | |
1661 | } | |
1662 | ||
1663 | int | |
1664 | S_IS_EXTERNAL (s) | |
1665 | symbolS *s; | |
1666 | { | |
49309057 ILT |
1667 | flagword flags; |
1668 | ||
1669 | if (LOCAL_SYMBOL_CHECK (s)) | |
1670 | return 0; | |
1671 | ||
1672 | flags = s->bsym->flags; | |
252b5132 | 1673 | |
7c743825 | 1674 | /* Sanity check. */ |
252b5132 RH |
1675 | if ((flags & BSF_LOCAL) && (flags & BSF_GLOBAL)) |
1676 | abort (); | |
1677 | ||
1678 | return (flags & BSF_GLOBAL) != 0; | |
1679 | } | |
1680 | ||
1681 | int | |
1682 | S_IS_WEAK (s) | |
1683 | symbolS *s; | |
1684 | { | |
49309057 ILT |
1685 | if (LOCAL_SYMBOL_CHECK (s)) |
1686 | return 0; | |
252b5132 RH |
1687 | return (s->bsym->flags & BSF_WEAK) != 0; |
1688 | } | |
1689 | ||
1690 | int | |
1691 | S_IS_COMMON (s) | |
1692 | symbolS *s; | |
1693 | { | |
49309057 ILT |
1694 | if (LOCAL_SYMBOL_CHECK (s)) |
1695 | return 0; | |
252b5132 RH |
1696 | return bfd_is_com_section (s->bsym->section); |
1697 | } | |
1698 | ||
1699 | int | |
1700 | S_IS_DEFINED (s) | |
1701 | symbolS *s; | |
1702 | { | |
49309057 ILT |
1703 | if (LOCAL_SYMBOL_CHECK (s)) |
1704 | return ((struct local_symbol *) s)->lsy_section != undefined_section; | |
252b5132 RH |
1705 | return s->bsym->section != undefined_section; |
1706 | } | |
1707 | ||
1708 | int | |
1709 | S_IS_DEBUG (s) | |
1710 | symbolS *s; | |
1711 | { | |
49309057 ILT |
1712 | if (LOCAL_SYMBOL_CHECK (s)) |
1713 | return 0; | |
252b5132 RH |
1714 | if (s->bsym->flags & BSF_DEBUGGING) |
1715 | return 1; | |
1716 | return 0; | |
1717 | } | |
1718 | ||
1719 | int | |
1720 | S_IS_LOCAL (s) | |
1721 | symbolS *s; | |
1722 | { | |
49309057 | 1723 | flagword flags; |
252b5132 RH |
1724 | const char *name; |
1725 | ||
49309057 ILT |
1726 | if (LOCAL_SYMBOL_CHECK (s)) |
1727 | return 1; | |
1728 | ||
1729 | flags = s->bsym->flags; | |
1730 | ||
7c743825 | 1731 | /* Sanity check. */ |
252b5132 RH |
1732 | if ((flags & BSF_LOCAL) && (flags & BSF_GLOBAL)) |
1733 | abort (); | |
1734 | ||
1735 | if (bfd_get_section (s->bsym) == reg_section) | |
1736 | return 1; | |
1737 | ||
1738 | if (flag_strip_local_absolute | |
1739 | && (flags & BSF_GLOBAL) == 0 | |
1740 | && bfd_get_section (s->bsym) == absolute_section) | |
1741 | return 1; | |
1742 | ||
1743 | name = S_GET_NAME (s); | |
1744 | return (name != NULL | |
1745 | && ! S_IS_DEBUG (s) | |
aa257fcd NC |
1746 | && (strchr (name, DOLLAR_LABEL_CHAR) |
1747 | || strchr (name, LOCAL_LABEL_CHAR) | |
252b5132 RH |
1748 | || (! flag_keep_locals |
1749 | && (bfd_is_local_label (stdoutput, s->bsym) | |
1750 | || (flag_mri | |
1751 | && name[0] == '?' | |
1752 | && name[1] == '?'))))); | |
1753 | } | |
1754 | ||
1755 | int | |
1756 | S_IS_EXTERN (s) | |
1757 | symbolS *s; | |
1758 | { | |
1759 | return S_IS_EXTERNAL (s); | |
1760 | } | |
1761 | ||
1762 | int | |
1763 | S_IS_STABD (s) | |
1764 | symbolS *s; | |
1765 | { | |
1766 | return S_GET_NAME (s) == 0; | |
1767 | } | |
1768 | ||
1769 | CONST char * | |
1770 | S_GET_NAME (s) | |
1771 | symbolS *s; | |
1772 | { | |
49309057 ILT |
1773 | if (LOCAL_SYMBOL_CHECK (s)) |
1774 | return ((struct local_symbol *) s)->lsy_name; | |
252b5132 RH |
1775 | return s->bsym->name; |
1776 | } | |
1777 | ||
1778 | segT | |
1779 | S_GET_SEGMENT (s) | |
1780 | symbolS *s; | |
1781 | { | |
49309057 ILT |
1782 | if (LOCAL_SYMBOL_CHECK (s)) |
1783 | return ((struct local_symbol *) s)->lsy_section; | |
252b5132 RH |
1784 | return s->bsym->section; |
1785 | } | |
1786 | ||
1787 | void | |
1788 | S_SET_SEGMENT (s, seg) | |
1789 | symbolS *s; | |
1790 | segT seg; | |
1791 | { | |
1792 | /* Don't reassign section symbols. The direct reason is to prevent seg | |
1793 | faults assigning back to const global symbols such as *ABS*, but it | |
1794 | shouldn't happen anyway. */ | |
1795 | ||
49309057 ILT |
1796 | if (LOCAL_SYMBOL_CHECK (s)) |
1797 | { | |
1798 | if (seg == reg_section) | |
1799 | s = local_symbol_convert ((struct local_symbol *) s); | |
1800 | else | |
1801 | { | |
1802 | ((struct local_symbol *) s)->lsy_section = seg; | |
1803 | return; | |
1804 | } | |
1805 | } | |
1806 | ||
252b5132 RH |
1807 | if (s->bsym->flags & BSF_SECTION_SYM) |
1808 | { | |
1809 | if (s->bsym->section != seg) | |
7c743825 | 1810 | abort (); |
252b5132 RH |
1811 | } |
1812 | else | |
1813 | s->bsym->section = seg; | |
1814 | } | |
1815 | ||
1816 | void | |
1817 | S_SET_EXTERNAL (s) | |
1818 | symbolS *s; | |
1819 | { | |
49309057 ILT |
1820 | if (LOCAL_SYMBOL_CHECK (s)) |
1821 | s = local_symbol_convert ((struct local_symbol *) s); | |
252b5132 RH |
1822 | if ((s->bsym->flags & BSF_WEAK) != 0) |
1823 | { | |
1824 | /* Let .weak override .global. */ | |
1825 | return; | |
1826 | } | |
1827 | s->bsym->flags |= BSF_GLOBAL; | |
7c743825 | 1828 | s->bsym->flags &= ~(BSF_LOCAL | BSF_WEAK); |
252b5132 RH |
1829 | } |
1830 | ||
1831 | void | |
1832 | S_CLEAR_EXTERNAL (s) | |
1833 | symbolS *s; | |
1834 | { | |
49309057 ILT |
1835 | if (LOCAL_SYMBOL_CHECK (s)) |
1836 | return; | |
252b5132 RH |
1837 | if ((s->bsym->flags & BSF_WEAK) != 0) |
1838 | { | |
1839 | /* Let .weak override. */ | |
1840 | return; | |
1841 | } | |
1842 | s->bsym->flags |= BSF_LOCAL; | |
7c743825 | 1843 | s->bsym->flags &= ~(BSF_GLOBAL | BSF_WEAK); |
252b5132 RH |
1844 | } |
1845 | ||
1846 | void | |
1847 | S_SET_WEAK (s) | |
1848 | symbolS *s; | |
1849 | { | |
49309057 ILT |
1850 | if (LOCAL_SYMBOL_CHECK (s)) |
1851 | s = local_symbol_convert ((struct local_symbol *) s); | |
252b5132 | 1852 | s->bsym->flags |= BSF_WEAK; |
7c743825 | 1853 | s->bsym->flags &= ~(BSF_GLOBAL | BSF_LOCAL); |
252b5132 RH |
1854 | } |
1855 | ||
1856 | void | |
1857 | S_SET_NAME (s, name) | |
1858 | symbolS *s; | |
1859 | char *name; | |
1860 | { | |
49309057 ILT |
1861 | if (LOCAL_SYMBOL_CHECK (s)) |
1862 | { | |
1863 | ((struct local_symbol *) s)->lsy_name = name; | |
1864 | return; | |
1865 | } | |
252b5132 RH |
1866 | s->bsym->name = name; |
1867 | } | |
1868 | #endif /* BFD_ASSEMBLER */ | |
1869 | ||
49309057 ILT |
1870 | #ifdef SYMBOLS_NEED_BACKPOINTERS |
1871 | ||
1872 | /* Return the previous symbol in a chain. */ | |
1873 | ||
1874 | symbolS * | |
1875 | symbol_previous (s) | |
1876 | symbolS *s; | |
1877 | { | |
1878 | if (LOCAL_SYMBOL_CHECK (s)) | |
1879 | abort (); | |
1880 | return s->sy_previous; | |
1881 | } | |
1882 | ||
1883 | #endif /* SYMBOLS_NEED_BACKPOINTERS */ | |
1884 | ||
1885 | /* Return the next symbol in a chain. */ | |
1886 | ||
1887 | symbolS * | |
1888 | symbol_next (s) | |
1889 | symbolS *s; | |
1890 | { | |
1891 | if (LOCAL_SYMBOL_CHECK (s)) | |
1892 | abort (); | |
1893 | return s->sy_next; | |
1894 | } | |
1895 | ||
1896 | /* Return a pointer to the value of a symbol as an expression. */ | |
1897 | ||
1898 | expressionS * | |
1899 | symbol_get_value_expression (s) | |
1900 | symbolS *s; | |
1901 | { | |
1902 | if (LOCAL_SYMBOL_CHECK (s)) | |
1903 | s = local_symbol_convert ((struct local_symbol *) s); | |
1904 | return &s->sy_value; | |
1905 | } | |
1906 | ||
1907 | /* Set the value of a symbol to an expression. */ | |
1908 | ||
1909 | void | |
1910 | symbol_set_value_expression (s, exp) | |
1911 | symbolS *s; | |
1912 | const expressionS *exp; | |
1913 | { | |
1914 | if (LOCAL_SYMBOL_CHECK (s)) | |
1915 | s = local_symbol_convert ((struct local_symbol *) s); | |
1916 | s->sy_value = *exp; | |
1917 | } | |
1918 | ||
1919 | /* Set the frag of a symbol. */ | |
1920 | ||
1921 | void | |
1922 | symbol_set_frag (s, f) | |
1923 | symbolS *s; | |
1924 | fragS *f; | |
1925 | { | |
a1605869 | 1926 | #ifdef BFD_ASSEMBLER |
49309057 ILT |
1927 | if (LOCAL_SYMBOL_CHECK (s)) |
1928 | { | |
1929 | local_symbol_set_frag ((struct local_symbol *) s, f); | |
1930 | return; | |
1931 | } | |
a1605869 | 1932 | #endif |
49309057 ILT |
1933 | s->sy_frag = f; |
1934 | } | |
1935 | ||
1936 | /* Return the frag of a symbol. */ | |
1937 | ||
1938 | fragS * | |
1939 | symbol_get_frag (s) | |
1940 | symbolS *s; | |
1941 | { | |
a1605869 | 1942 | #ifdef BFD_ASSEMBLER |
49309057 ILT |
1943 | if (LOCAL_SYMBOL_CHECK (s)) |
1944 | return local_symbol_get_frag ((struct local_symbol *) s); | |
a1605869 | 1945 | #endif |
49309057 ILT |
1946 | return s->sy_frag; |
1947 | } | |
1948 | ||
1949 | /* Mark a symbol as having been used. */ | |
1950 | ||
1951 | void | |
1952 | symbol_mark_used (s) | |
1953 | symbolS *s; | |
1954 | { | |
1955 | if (LOCAL_SYMBOL_CHECK (s)) | |
1956 | return; | |
1957 | s->sy_used = 1; | |
1958 | } | |
1959 | ||
1960 | /* Clear the mark of whether a symbol has been used. */ | |
1961 | ||
1962 | void | |
1963 | symbol_clear_used (s) | |
1964 | symbolS *s; | |
1965 | { | |
1966 | if (LOCAL_SYMBOL_CHECK (s)) | |
1967 | s = local_symbol_convert ((struct local_symbol *) s); | |
1968 | s->sy_used = 0; | |
1969 | } | |
1970 | ||
1971 | /* Return whether a symbol has been used. */ | |
1972 | ||
1973 | int | |
1974 | symbol_used_p (s) | |
1975 | symbolS *s; | |
1976 | { | |
1977 | if (LOCAL_SYMBOL_CHECK (s)) | |
1978 | return 1; | |
1979 | return s->sy_used; | |
1980 | } | |
1981 | ||
1982 | /* Mark a symbol as having been used in a reloc. */ | |
1983 | ||
1984 | void | |
1985 | symbol_mark_used_in_reloc (s) | |
1986 | symbolS *s; | |
1987 | { | |
1988 | if (LOCAL_SYMBOL_CHECK (s)) | |
1989 | s = local_symbol_convert ((struct local_symbol *) s); | |
1990 | s->sy_used_in_reloc = 1; | |
1991 | } | |
1992 | ||
1993 | /* Clear the mark of whether a symbol has been used in a reloc. */ | |
1994 | ||
1995 | void | |
1996 | symbol_clear_used_in_reloc (s) | |
1997 | symbolS *s; | |
1998 | { | |
1999 | if (LOCAL_SYMBOL_CHECK (s)) | |
2000 | return; | |
2001 | s->sy_used_in_reloc = 0; | |
2002 | } | |
2003 | ||
2004 | /* Return whether a symbol has been used in a reloc. */ | |
2005 | ||
2006 | int | |
2007 | symbol_used_in_reloc_p (s) | |
2008 | symbolS *s; | |
2009 | { | |
2010 | if (LOCAL_SYMBOL_CHECK (s)) | |
2011 | return 0; | |
2012 | return s->sy_used_in_reloc; | |
2013 | } | |
2014 | ||
2015 | /* Mark a symbol as an MRI common symbol. */ | |
2016 | ||
2017 | void | |
2018 | symbol_mark_mri_common (s) | |
2019 | symbolS *s; | |
2020 | { | |
2021 | if (LOCAL_SYMBOL_CHECK (s)) | |
2022 | s = local_symbol_convert ((struct local_symbol *) s); | |
2023 | s->sy_mri_common = 1; | |
2024 | } | |
2025 | ||
2026 | /* Clear the mark of whether a symbol is an MRI common symbol. */ | |
2027 | ||
2028 | void | |
2029 | symbol_clear_mri_common (s) | |
2030 | symbolS *s; | |
2031 | { | |
2032 | if (LOCAL_SYMBOL_CHECK (s)) | |
2033 | return; | |
2034 | s->sy_mri_common = 0; | |
2035 | } | |
2036 | ||
2037 | /* Return whether a symbol is an MRI common symbol. */ | |
2038 | ||
2039 | int | |
2040 | symbol_mri_common_p (s) | |
2041 | symbolS *s; | |
2042 | { | |
2043 | if (LOCAL_SYMBOL_CHECK (s)) | |
2044 | return 0; | |
2045 | return s->sy_mri_common; | |
2046 | } | |
2047 | ||
2048 | /* Mark a symbol as having been written. */ | |
2049 | ||
2050 | void | |
2051 | symbol_mark_written (s) | |
2052 | symbolS *s; | |
2053 | { | |
2054 | if (LOCAL_SYMBOL_CHECK (s)) | |
2055 | return; | |
2056 | s->written = 1; | |
2057 | } | |
2058 | ||
2059 | /* Clear the mark of whether a symbol has been written. */ | |
2060 | ||
2061 | void | |
2062 | symbol_clear_written (s) | |
2063 | symbolS *s; | |
2064 | { | |
2065 | if (LOCAL_SYMBOL_CHECK (s)) | |
2066 | return; | |
2067 | s->written = 0; | |
2068 | } | |
2069 | ||
2070 | /* Return whether a symbol has been written. */ | |
2071 | ||
2072 | int | |
2073 | symbol_written_p (s) | |
2074 | symbolS *s; | |
2075 | { | |
2076 | if (LOCAL_SYMBOL_CHECK (s)) | |
2077 | return 0; | |
2078 | return s->written; | |
2079 | } | |
2080 | ||
2081 | /* Mark a symbol has having been resolved. */ | |
2082 | ||
2083 | void | |
2084 | symbol_mark_resolved (s) | |
2085 | symbolS *s; | |
2086 | { | |
a1605869 | 2087 | #ifdef BFD_ASSEMBLER |
49309057 ILT |
2088 | if (LOCAL_SYMBOL_CHECK (s)) |
2089 | { | |
2090 | local_symbol_mark_resolved ((struct local_symbol *) s); | |
2091 | return; | |
2092 | } | |
a1605869 | 2093 | #endif |
49309057 ILT |
2094 | s->sy_resolved = 1; |
2095 | } | |
2096 | ||
2097 | /* Return whether a symbol has been resolved. */ | |
2098 | ||
2099 | int | |
2100 | symbol_resolved_p (s) | |
2101 | symbolS *s; | |
2102 | { | |
a1605869 | 2103 | #ifdef BFD_ASSEMBLER |
49309057 ILT |
2104 | if (LOCAL_SYMBOL_CHECK (s)) |
2105 | return local_symbol_resolved_p ((struct local_symbol *) s); | |
a1605869 | 2106 | #endif |
49309057 ILT |
2107 | return s->sy_resolved; |
2108 | } | |
2109 | ||
2110 | /* Return whether a symbol is a section symbol. */ | |
2111 | ||
2112 | int | |
2113 | symbol_section_p (s) | |
a04b544b | 2114 | symbolS *s ATTRIBUTE_UNUSED; |
49309057 ILT |
2115 | { |
2116 | if (LOCAL_SYMBOL_CHECK (s)) | |
2117 | return 0; | |
2118 | #ifdef BFD_ASSEMBLER | |
2119 | return (s->bsym->flags & BSF_SECTION_SYM) != 0; | |
2120 | #else | |
7c743825 | 2121 | /* FIXME. */ |
49309057 ILT |
2122 | return 0; |
2123 | #endif | |
2124 | } | |
2125 | ||
2126 | /* Return whether a symbol is equated to another symbol. */ | |
2127 | ||
2128 | int | |
2129 | symbol_equated_p (s) | |
2130 | symbolS *s; | |
2131 | { | |
2132 | if (LOCAL_SYMBOL_CHECK (s)) | |
2133 | return 0; | |
2134 | return s->sy_value.X_op == O_symbol; | |
2135 | } | |
2136 | ||
2137 | /* Return whether a symbol has a constant value. */ | |
2138 | ||
2139 | int | |
2140 | symbol_constant_p (s) | |
2141 | symbolS *s; | |
2142 | { | |
2143 | if (LOCAL_SYMBOL_CHECK (s)) | |
2144 | return 1; | |
2145 | return s->sy_value.X_op == O_constant; | |
2146 | } | |
2147 | ||
2148 | #ifdef BFD_ASSEMBLER | |
2149 | ||
2150 | /* Return the BFD symbol for a symbol. */ | |
2151 | ||
2152 | asymbol * | |
2153 | symbol_get_bfdsym (s) | |
2154 | symbolS *s; | |
2155 | { | |
2156 | if (LOCAL_SYMBOL_CHECK (s)) | |
2157 | s = local_symbol_convert ((struct local_symbol *) s); | |
2158 | return s->bsym; | |
2159 | } | |
2160 | ||
2161 | /* Set the BFD symbol for a symbol. */ | |
2162 | ||
2163 | void | |
2164 | symbol_set_bfdsym (s, bsym) | |
2165 | symbolS *s; | |
2166 | asymbol *bsym; | |
2167 | { | |
2168 | if (LOCAL_SYMBOL_CHECK (s)) | |
2169 | s = local_symbol_convert ((struct local_symbol *) s); | |
2170 | s->bsym = bsym; | |
2171 | } | |
2172 | ||
2173 | #endif /* BFD_ASSEMBLER */ | |
2174 | ||
2175 | #ifdef OBJ_SYMFIELD_TYPE | |
2176 | ||
2177 | /* Get a pointer to the object format information for a symbol. */ | |
2178 | ||
2179 | OBJ_SYMFIELD_TYPE * | |
2180 | symbol_get_obj (s) | |
2181 | symbolS *s; | |
2182 | { | |
2183 | if (LOCAL_SYMBOL_CHECK (s)) | |
2184 | s = local_symbol_convert ((struct local_symbol *) s); | |
2185 | return &s->sy_obj; | |
2186 | } | |
2187 | ||
2188 | /* Set the object format information for a symbol. */ | |
2189 | ||
2190 | void | |
2191 | symbol_set_obj (s, o) | |
2192 | symbolS *s; | |
2193 | OBJ_SYMFIELD_TYPE *o; | |
2194 | { | |
2195 | if (LOCAL_SYMBOL_CHECK (s)) | |
2196 | s = local_symbol_convert ((struct local_symbol *) s); | |
2197 | s->sy_obj = *o; | |
2198 | } | |
2199 | ||
2200 | #endif /* OBJ_SYMFIELD_TYPE */ | |
2201 | ||
2202 | #ifdef TC_SYMFIELD_TYPE | |
2203 | ||
2204 | /* Get a pointer to the processor information for a symbol. */ | |
2205 | ||
2206 | TC_SYMFIELD_TYPE * | |
2207 | symbol_get_tc (s) | |
2208 | symbolS *s; | |
2209 | { | |
2210 | if (LOCAL_SYMBOL_CHECK (s)) | |
2211 | s = local_symbol_convert ((struct local_symbol *) s); | |
2212 | return &s->sy_tc; | |
2213 | } | |
2214 | ||
2215 | /* Set the processor information for a symbol. */ | |
2216 | ||
2217 | void | |
bf27257e | 2218 | symbol_set_tc (s, o) |
49309057 ILT |
2219 | symbolS *s; |
2220 | TC_SYMFIELD_TYPE *o; | |
2221 | { | |
2222 | if (LOCAL_SYMBOL_CHECK (s)) | |
2223 | s = local_symbol_convert ((struct local_symbol *) s); | |
2224 | s->sy_tc = *o; | |
2225 | } | |
2226 | ||
2227 | #endif /* TC_SYMFIELD_TYPE */ | |
2228 | ||
252b5132 RH |
2229 | void |
2230 | symbol_begin () | |
2231 | { | |
2232 | symbol_lastP = NULL; | |
7c743825 | 2233 | symbol_rootP = NULL; /* In case we have 0 symbols (!!) */ |
252b5132 | 2234 | sy_hash = hash_new (); |
49309057 ILT |
2235 | #ifdef BFD_ASSEMBLER |
2236 | local_hash = hash_new (); | |
2237 | #endif | |
252b5132 RH |
2238 | |
2239 | memset ((char *) (&abs_symbol), '\0', sizeof (abs_symbol)); | |
2240 | #ifdef BFD_ASSEMBLER | |
2241 | #if defined (EMIT_SECTION_SYMBOLS) || !defined (RELOC_REQUIRES_SYMBOL) | |
2242 | abs_symbol.bsym = bfd_abs_section.symbol; | |
2243 | #endif | |
2244 | #else | |
7c743825 | 2245 | /* Can't initialise a union. Sigh. */ |
252b5132 RH |
2246 | S_SET_SEGMENT (&abs_symbol, absolute_section); |
2247 | #endif | |
2248 | abs_symbol.sy_value.X_op = O_constant; | |
2249 | abs_symbol.sy_frag = &zero_address_frag; | |
2250 | ||
2251 | if (LOCAL_LABELS_FB) | |
2252 | fb_label_init (); | |
2253 | } | |
252b5132 RH |
2254 | \f |
2255 | int indent_level; | |
2256 | ||
2257 | /* Maximum indent level. | |
2258 | Available for modification inside a gdb session. */ | |
2259 | int max_indent_level = 8; | |
2260 | ||
2261 | #if 0 | |
2262 | ||
2263 | static void | |
2264 | indent () | |
2265 | { | |
2266 | printf ("%*s", indent_level * 4, ""); | |
2267 | } | |
2268 | ||
2269 | #endif | |
2270 | ||
2271 | void | |
2272 | print_symbol_value_1 (file, sym) | |
2273 | FILE *file; | |
2274 | symbolS *sym; | |
2275 | { | |
2276 | const char *name = S_GET_NAME (sym); | |
2277 | if (!name || !name[0]) | |
2278 | name = "(unnamed)"; | |
2279 | fprintf (file, "sym %lx %s", (unsigned long) sym, name); | |
49309057 ILT |
2280 | |
2281 | if (LOCAL_SYMBOL_CHECK (sym)) | |
2282 | { | |
a1605869 | 2283 | #ifdef BFD_ASSEMBLER |
49309057 ILT |
2284 | struct local_symbol *locsym = (struct local_symbol *) sym; |
2285 | if (local_symbol_get_frag (locsym) != &zero_address_frag | |
2286 | && local_symbol_get_frag (locsym) != NULL) | |
2287 | fprintf (file, " frag %lx", (long) local_symbol_get_frag (locsym)); | |
2288 | if (local_symbol_resolved_p (locsym)) | |
2289 | fprintf (file, " resolved"); | |
2290 | fprintf (file, " local"); | |
a1605869 | 2291 | #endif |
49309057 ILT |
2292 | } |
2293 | else | |
2294 | { | |
2295 | if (sym->sy_frag != &zero_address_frag) | |
2296 | fprintf (file, " frag %lx", (long) sym->sy_frag); | |
2297 | if (sym->written) | |
2298 | fprintf (file, " written"); | |
2299 | if (sym->sy_resolved) | |
2300 | fprintf (file, " resolved"); | |
2301 | else if (sym->sy_resolving) | |
2302 | fprintf (file, " resolving"); | |
2303 | if (sym->sy_used_in_reloc) | |
2304 | fprintf (file, " used-in-reloc"); | |
2305 | if (sym->sy_used) | |
2306 | fprintf (file, " used"); | |
2307 | if (S_IS_LOCAL (sym)) | |
2308 | fprintf (file, " local"); | |
2309 | if (S_IS_EXTERN (sym)) | |
2310 | fprintf (file, " extern"); | |
2311 | if (S_IS_DEBUG (sym)) | |
2312 | fprintf (file, " debug"); | |
2313 | if (S_IS_DEFINED (sym)) | |
2314 | fprintf (file, " defined"); | |
2315 | } | |
252b5132 | 2316 | fprintf (file, " %s", segment_name (S_GET_SEGMENT (sym))); |
49309057 | 2317 | if (symbol_resolved_p (sym)) |
252b5132 RH |
2318 | { |
2319 | segT s = S_GET_SEGMENT (sym); | |
2320 | ||
2321 | if (s != undefined_section | |
2322 | && s != expr_section) | |
2323 | fprintf (file, " %lx", (long) S_GET_VALUE (sym)); | |
2324 | } | |
2325 | else if (indent_level < max_indent_level | |
2326 | && S_GET_SEGMENT (sym) != undefined_section) | |
2327 | { | |
2328 | indent_level++; | |
2329 | fprintf (file, "\n%*s<", indent_level * 4, ""); | |
a1605869 | 2330 | #ifdef BFD_ASSEMBLER |
49309057 ILT |
2331 | if (LOCAL_SYMBOL_CHECK (sym)) |
2332 | fprintf (file, "constant %lx", | |
2333 | (long) ((struct local_symbol *) sym)->lsy_offset); | |
2334 | else | |
a1605869 | 2335 | #endif |
49309057 | 2336 | print_expr_1 (file, &sym->sy_value); |
252b5132 RH |
2337 | fprintf (file, ">"); |
2338 | indent_level--; | |
2339 | } | |
2340 | fflush (file); | |
2341 | } | |
2342 | ||
2343 | void | |
2344 | print_symbol_value (sym) | |
2345 | symbolS *sym; | |
2346 | { | |
2347 | indent_level = 0; | |
2348 | print_symbol_value_1 (stderr, sym); | |
2349 | fprintf (stderr, "\n"); | |
2350 | } | |
2351 | ||
2352 | static void | |
2353 | print_binary (file, name, exp) | |
2354 | FILE *file; | |
7c743825 | 2355 | const char *name; |
252b5132 RH |
2356 | expressionS *exp; |
2357 | { | |
2358 | indent_level++; | |
2359 | fprintf (file, "%s\n%*s<", name, indent_level * 4, ""); | |
2360 | print_symbol_value_1 (file, exp->X_add_symbol); | |
2361 | fprintf (file, ">\n%*s<", indent_level * 4, ""); | |
2362 | print_symbol_value_1 (file, exp->X_op_symbol); | |
2363 | fprintf (file, ">"); | |
2364 | indent_level--; | |
2365 | } | |
2366 | ||
2367 | void | |
2368 | print_expr_1 (file, exp) | |
2369 | FILE *file; | |
2370 | expressionS *exp; | |
2371 | { | |
2372 | fprintf (file, "expr %lx ", (long) exp); | |
2373 | switch (exp->X_op) | |
2374 | { | |
2375 | case O_illegal: | |
2376 | fprintf (file, "illegal"); | |
2377 | break; | |
2378 | case O_absent: | |
2379 | fprintf (file, "absent"); | |
2380 | break; | |
2381 | case O_constant: | |
2382 | fprintf (file, "constant %lx", (long) exp->X_add_number); | |
2383 | break; | |
2384 | case O_symbol: | |
2385 | indent_level++; | |
2386 | fprintf (file, "symbol\n%*s<", indent_level * 4, ""); | |
2387 | print_symbol_value_1 (file, exp->X_add_symbol); | |
2388 | fprintf (file, ">"); | |
2389 | maybe_print_addnum: | |
2390 | if (exp->X_add_number) | |
2391 | fprintf (file, "\n%*s%lx", indent_level * 4, "", | |
2392 | (long) exp->X_add_number); | |
2393 | indent_level--; | |
2394 | break; | |
2395 | case O_register: | |
2396 | fprintf (file, "register #%d", (int) exp->X_add_number); | |
2397 | break; | |
2398 | case O_big: | |
2399 | fprintf (file, "big"); | |
2400 | break; | |
2401 | case O_uminus: | |
2402 | fprintf (file, "uminus -<"); | |
2403 | indent_level++; | |
2404 | print_symbol_value_1 (file, exp->X_add_symbol); | |
2405 | fprintf (file, ">"); | |
2406 | goto maybe_print_addnum; | |
2407 | case O_bit_not: | |
2408 | fprintf (file, "bit_not"); | |
2409 | break; | |
2410 | case O_multiply: | |
2411 | print_binary (file, "multiply", exp); | |
2412 | break; | |
2413 | case O_divide: | |
2414 | print_binary (file, "divide", exp); | |
2415 | break; | |
2416 | case O_modulus: | |
2417 | print_binary (file, "modulus", exp); | |
2418 | break; | |
2419 | case O_left_shift: | |
2420 | print_binary (file, "lshift", exp); | |
2421 | break; | |
2422 | case O_right_shift: | |
2423 | print_binary (file, "rshift", exp); | |
2424 | break; | |
2425 | case O_bit_inclusive_or: | |
2426 | print_binary (file, "bit_ior", exp); | |
2427 | break; | |
2428 | case O_bit_exclusive_or: | |
2429 | print_binary (file, "bit_xor", exp); | |
2430 | break; | |
2431 | case O_bit_and: | |
2432 | print_binary (file, "bit_and", exp); | |
2433 | break; | |
2434 | case O_eq: | |
2435 | print_binary (file, "eq", exp); | |
2436 | break; | |
2437 | case O_ne: | |
2438 | print_binary (file, "ne", exp); | |
2439 | break; | |
2440 | case O_lt: | |
2441 | print_binary (file, "lt", exp); | |
2442 | break; | |
2443 | case O_le: | |
2444 | print_binary (file, "le", exp); | |
2445 | break; | |
2446 | case O_ge: | |
2447 | print_binary (file, "ge", exp); | |
2448 | break; | |
2449 | case O_gt: | |
2450 | print_binary (file, "gt", exp); | |
2451 | break; | |
2452 | case O_logical_and: | |
2453 | print_binary (file, "logical_and", exp); | |
2454 | break; | |
2455 | case O_logical_or: | |
2456 | print_binary (file, "logical_or", exp); | |
2457 | break; | |
2458 | case O_add: | |
2459 | indent_level++; | |
2460 | fprintf (file, "add\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 | case O_subtract: | |
2467 | indent_level++; | |
2468 | fprintf (file, "subtract\n%*s<", indent_level * 4, ""); | |
2469 | print_symbol_value_1 (file, exp->X_add_symbol); | |
2470 | fprintf (file, ">\n%*s<", indent_level * 4, ""); | |
2471 | print_symbol_value_1 (file, exp->X_op_symbol); | |
2472 | fprintf (file, ">"); | |
2473 | goto maybe_print_addnum; | |
2474 | default: | |
2475 | fprintf (file, "{unknown opcode %d}", (int) exp->X_op); | |
2476 | break; | |
2477 | } | |
2478 | fflush (stdout); | |
2479 | } | |
2480 | ||
2481 | void | |
2482 | print_expr (exp) | |
2483 | expressionS *exp; | |
2484 | { | |
2485 | print_expr_1 (stderr, exp); | |
2486 | fprintf (stderr, "\n"); | |
2487 | } | |
2488 | ||
2489 | void | |
2490 | symbol_print_statistics (file) | |
2491 | FILE *file; | |
2492 | { | |
2493 | hash_print_statistics (file, "symbol table", sy_hash); | |
49309057 ILT |
2494 | #ifdef BFD_ASSEMBLER |
2495 | hash_print_statistics (file, "mini local symbol table", local_hash); | |
2496 | fprintf (file, "%lu mini local symbols created, %lu converted\n", | |
2497 | local_symbol_count, local_symbol_conversion_count); | |
2498 | #endif | |
252b5132 | 2499 | } |