Commit | Line | Data |
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252b5132 | 1 | /* symbols.c -symbol table- |
f7e42eb4 | 2 | Copyright 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, |
a76903bf | 3 | 1999, 2000, 2001, 2002, 2003, 2004, 2005 |
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 | |
4b4da160 NC |
20 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
21 | 02110-1301, USA. */ | |
252b5132 | 22 | |
7c743825 | 23 | /* #define DEBUG_SYMS / * to debug symbol list maintenance. */ |
252b5132 | 24 | |
252b5132 RH |
25 | #include "as.h" |
26 | ||
3882b010 | 27 | #include "safe-ctype.h" |
252b5132 RH |
28 | #include "obstack.h" /* For "symbols.h" */ |
29 | #include "subsegs.h" | |
30 | ||
49309057 ILT |
31 | #include "struc-symbol.h" |
32 | ||
252b5132 RH |
33 | /* This is non-zero if symbols are case sensitive, which is the |
34 | default. */ | |
35 | int symbols_case_sensitive = 1; | |
36 | ||
37 | #ifndef WORKING_DOT_WORD | |
38 | extern int new_broken_words; | |
39 | #endif | |
40 | ||
41 | /* symbol-name => struct symbol pointer */ | |
42 | static struct hash_control *sy_hash; | |
43 | ||
49309057 ILT |
44 | /* Table of local symbols. */ |
45 | static struct hash_control *local_hash; | |
46 | ||
7c743825 | 47 | /* Below are commented in "symbols.h". */ |
252b5132 RH |
48 | symbolS *symbol_rootP; |
49 | symbolS *symbol_lastP; | |
50 | symbolS abs_symbol; | |
51 | ||
52 | #ifdef DEBUG_SYMS | |
53 | #define debug_verify_symchain verify_symbol_chain | |
54 | #else | |
55 | #define debug_verify_symchain(root, last) ((void) 0) | |
56 | #endif | |
57 | ||
aa257fcd NC |
58 | #define DOLLAR_LABEL_CHAR '\001' |
59 | #define LOCAL_LABEL_CHAR '\002' | |
60 | ||
252b5132 | 61 | struct obstack notes; |
977cdf5a NC |
62 | #ifdef USE_UNIQUE |
63 | /* The name of an external symbol which is | |
64 | used to make weak PE symbol names unique. */ | |
65 | const char * an_external_name; | |
66 | #endif | |
252b5132 | 67 | |
74937d39 KH |
68 | static char *save_symbol_name (const char *); |
69 | static void fb_label_init (void); | |
70 | static long dollar_label_instance (long); | |
71 | static long fb_label_instance (long); | |
252b5132 | 72 | |
74937d39 KH |
73 | static void print_binary (FILE *, const char *, expressionS *); |
74 | static void report_op_error (symbolS *, symbolS *, symbolS *); | |
252b5132 | 75 | |
7c743825 | 76 | /* Return a pointer to a new symbol. Die if we can't make a new |
252b5132 RH |
77 | symbol. Fill in the symbol's values. Add symbol to end of symbol |
78 | chain. | |
7c743825 | 79 | |
252b5132 RH |
80 | This function should be called in the general case of creating a |
81 | symbol. However, if the output file symbol table has already been | |
82 | set, and you are certain that this symbol won't be wanted in the | |
83 | output file, you can call symbol_create. */ | |
84 | ||
85 | symbolS * | |
74937d39 | 86 | symbol_new (const char *name, segT segment, valueT valu, fragS *frag) |
252b5132 RH |
87 | { |
88 | symbolS *symbolP = symbol_create (name, segment, valu, frag); | |
89 | ||
7c743825 | 90 | /* Link to end of symbol chain. */ |
252b5132 RH |
91 | { |
92 | extern int symbol_table_frozen; | |
93 | if (symbol_table_frozen) | |
94 | abort (); | |
95 | } | |
252b5132 RH |
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 * | |
74937d39 | 105 | save_symbol_name (const char *name) |
252b5132 RH |
106 | { |
107 | unsigned int name_length; | |
49309057 | 108 | char *ret; |
252b5132 | 109 | |
7c743825 | 110 | name_length = strlen (name) + 1; /* +1 for \0. */ |
252b5132 | 111 | obstack_grow (¬es, name, name_length); |
49309057 ILT |
112 | ret = obstack_finish (¬es); |
113 | ||
252b5132 | 114 | #ifdef tc_canonicalize_symbol_name |
49309057 | 115 | ret = tc_canonicalize_symbol_name (ret); |
252b5132 RH |
116 | #endif |
117 | ||
118 | if (! symbols_case_sensitive) | |
119 | { | |
3882b010 | 120 | char *s; |
252b5132 | 121 | |
3882b010 L |
122 | for (s = ret; *s != '\0'; s++) |
123 | *s = TOUPPER (*s); | |
252b5132 RH |
124 | } |
125 | ||
49309057 ILT |
126 | return ret; |
127 | } | |
128 | ||
129 | symbolS * | |
74937d39 KH |
130 | symbol_create (const char *name, /* It is copied, the caller can destroy/modify. */ |
131 | segT segment, /* Segment identifier (SEG_<something>). */ | |
132 | valueT valu, /* Symbol value. */ | |
133 | fragS *frag /* Associated fragment. */) | |
49309057 ILT |
134 | { |
135 | char *preserved_copy_of_name; | |
136 | symbolS *symbolP; | |
137 | ||
138 | preserved_copy_of_name = save_symbol_name (name); | |
139 | ||
252b5132 RH |
140 | symbolP = (symbolS *) obstack_alloc (¬es, sizeof (symbolS)); |
141 | ||
7c743825 | 142 | /* symbol must be born in some fixed state. This seems as good as any. */ |
252b5132 RH |
143 | memset (symbolP, 0, sizeof (symbolS)); |
144 | ||
252b5132 RH |
145 | symbolP->bsym = bfd_make_empty_symbol (stdoutput); |
146 | if (symbolP->bsym == NULL) | |
147 | as_perror ("%s", "bfd_make_empty_symbol"); | |
148 | symbolP->bsym->udata.p = (PTR) symbolP; | |
252b5132 RH |
149 | S_SET_NAME (symbolP, preserved_copy_of_name); |
150 | ||
151 | S_SET_SEGMENT (symbolP, segment); | |
152 | S_SET_VALUE (symbolP, valu); | |
153 | symbol_clear_list_pointers (symbolP); | |
154 | ||
155 | symbolP->sy_frag = frag; | |
252b5132 RH |
156 | |
157 | obj_symbol_new_hook (symbolP); | |
158 | ||
159 | #ifdef tc_symbol_new_hook | |
160 | tc_symbol_new_hook (symbolP); | |
161 | #endif | |
162 | ||
163 | return symbolP; | |
164 | } | |
165 | \f | |
49309057 ILT |
166 | |
167 | /* Local symbol support. If we can get away with it, we keep only a | |
168 | small amount of information for local symbols. */ | |
169 | ||
74937d39 | 170 | static symbolS *local_symbol_convert (struct local_symbol *); |
49309057 ILT |
171 | |
172 | /* Used for statistics. */ | |
173 | ||
174 | static unsigned long local_symbol_count; | |
175 | static unsigned long local_symbol_conversion_count; | |
176 | ||
177 | /* This macro is called with a symbol argument passed by reference. | |
178 | It returns whether this is a local symbol. If necessary, it | |
179 | changes its argument to the real symbol. */ | |
180 | ||
181 | #define LOCAL_SYMBOL_CHECK(s) \ | |
182 | (s->bsym == NULL \ | |
183 | ? (local_symbol_converted_p ((struct local_symbol *) s) \ | |
184 | ? (s = local_symbol_get_real_symbol ((struct local_symbol *) s), \ | |
185 | 0) \ | |
186 | : 1) \ | |
187 | : 0) | |
188 | ||
189 | /* Create a local symbol and insert it into the local hash table. */ | |
190 | ||
87c245cc | 191 | static struct local_symbol * |
74937d39 | 192 | local_symbol_make (const char *name, segT section, valueT value, fragS *frag) |
49309057 ILT |
193 | { |
194 | char *name_copy; | |
195 | struct local_symbol *ret; | |
196 | ||
197 | ++local_symbol_count; | |
198 | ||
199 | name_copy = save_symbol_name (name); | |
200 | ||
201 | ret = (struct local_symbol *) obstack_alloc (¬es, sizeof *ret); | |
202 | ret->lsy_marker = NULL; | |
203 | ret->lsy_name = name_copy; | |
204 | ret->lsy_section = section; | |
205 | local_symbol_set_frag (ret, frag); | |
bd780143 | 206 | ret->lsy_value = value; |
49309057 ILT |
207 | |
208 | hash_jam (local_hash, name_copy, (PTR) ret); | |
209 | ||
210 | return ret; | |
211 | } | |
212 | ||
213 | /* Convert a local symbol into a real symbol. Note that we do not | |
214 | reclaim the space used by the local symbol. */ | |
215 | ||
216 | static symbolS * | |
74937d39 | 217 | local_symbol_convert (struct local_symbol *locsym) |
49309057 ILT |
218 | { |
219 | symbolS *ret; | |
220 | ||
221 | assert (locsym->lsy_marker == NULL); | |
222 | if (local_symbol_converted_p (locsym)) | |
223 | return local_symbol_get_real_symbol (locsym); | |
224 | ||
225 | ++local_symbol_conversion_count; | |
226 | ||
bd780143 | 227 | ret = symbol_new (locsym->lsy_name, locsym->lsy_section, locsym->lsy_value, |
49309057 ILT |
228 | local_symbol_get_frag (locsym)); |
229 | ||
230 | if (local_symbol_resolved_p (locsym)) | |
231 | ret->sy_resolved = 1; | |
232 | ||
233 | /* Local symbols are always either defined or used. */ | |
234 | ret->sy_used = 1; | |
235 | ||
8c5e1ccd AO |
236 | #ifdef TC_LOCAL_SYMFIELD_CONVERT |
237 | TC_LOCAL_SYMFIELD_CONVERT (locsym, ret); | |
238 | #endif | |
239 | ||
49309057 ILT |
240 | symbol_table_insert (ret); |
241 | ||
242 | local_symbol_mark_converted (locsym); | |
243 | local_symbol_set_real_symbol (locsym, ret); | |
244 | ||
245 | hash_jam (local_hash, locsym->lsy_name, NULL); | |
246 | ||
247 | return ret; | |
248 | } | |
49309057 | 249 | \f |
7c743825 KH |
250 | /* We have just seen "<name>:". |
251 | Creates a struct symbol unless it already exists. | |
252 | ||
253 | Gripes if we are redefining a symbol incompatibly (and ignores it). */ | |
252b5132 | 254 | |
252b5132 | 255 | symbolS * |
74937d39 KH |
256 | colon (/* Just seen "x:" - rattle symbols & frags. */ |
257 | const char *sym_name /* Symbol name, as a cannonical string. */ | |
258 | /* We copy this string: OK to alter later. */) | |
252b5132 | 259 | { |
7c743825 | 260 | register symbolS *symbolP; /* Symbol we are working with. */ |
252b5132 | 261 | |
7cf10893 | 262 | /* Sun local labels go out of scope whenever a non-local symbol is |
252b5132 | 263 | defined. */ |
7be1c489 AM |
264 | if (LOCAL_LABELS_DOLLAR |
265 | && !bfd_is_local_label_name (stdoutput, sym_name)) | |
266 | dollar_label_clear (); | |
252b5132 RH |
267 | |
268 | #ifndef WORKING_DOT_WORD | |
269 | if (new_broken_words) | |
270 | { | |
271 | struct broken_word *a; | |
272 | int possible_bytes; | |
273 | fragS *frag_tmp; | |
274 | char *frag_opcode; | |
275 | ||
7cf10893 NC |
276 | if (now_seg == absolute_section) |
277 | { | |
278 | as_bad (_("cannot define symbol `%s' in absolute section"), sym_name); | |
279 | return NULL; | |
280 | } | |
1d3b2b27 | 281 | |
252b5132 RH |
282 | possible_bytes = (md_short_jump_size |
283 | + new_broken_words * md_long_jump_size); | |
284 | ||
285 | frag_tmp = frag_now; | |
286 | frag_opcode = frag_var (rs_broken_word, | |
287 | possible_bytes, | |
288 | possible_bytes, | |
289 | (relax_substateT) 0, | |
290 | (symbolS *) broken_words, | |
291 | (offsetT) 0, | |
292 | NULL); | |
293 | ||
7c743825 KH |
294 | /* We want to store the pointer to where to insert the jump |
295 | table in the fr_opcode of the rs_broken_word frag. This | |
296 | requires a little hackery. */ | |
252b5132 RH |
297 | while (frag_tmp |
298 | && (frag_tmp->fr_type != rs_broken_word | |
299 | || frag_tmp->fr_opcode)) | |
300 | frag_tmp = frag_tmp->fr_next; | |
301 | know (frag_tmp); | |
302 | frag_tmp->fr_opcode = frag_opcode; | |
303 | new_broken_words = 0; | |
304 | ||
305 | for (a = broken_words; a && a->dispfrag == 0; a = a->next_broken_word) | |
306 | a->dispfrag = frag_tmp; | |
307 | } | |
308 | #endif /* WORKING_DOT_WORD */ | |
309 | ||
310 | if ((symbolP = symbol_find (sym_name)) != 0) | |
311 | { | |
06e77878 | 312 | S_CLEAR_WEAKREFR (symbolP); |
252b5132 RH |
313 | #ifdef RESOLVE_SYMBOL_REDEFINITION |
314 | if (RESOLVE_SYMBOL_REDEFINITION (symbolP)) | |
315 | return symbolP; | |
316 | #endif | |
7c743825 | 317 | /* Now check for undefined symbols. */ |
49309057 ILT |
318 | if (LOCAL_SYMBOL_CHECK (symbolP)) |
319 | { | |
320 | struct local_symbol *locsym = (struct local_symbol *) symbolP; | |
321 | ||
322 | if (locsym->lsy_section != undefined_section | |
323 | && (local_symbol_get_frag (locsym) != frag_now | |
324 | || locsym->lsy_section != now_seg | |
bd780143 | 325 | || locsym->lsy_value != frag_now_fix ())) |
49309057 | 326 | { |
0e389e77 | 327 | as_bad (_("symbol `%s' is already defined"), sym_name); |
49309057 ILT |
328 | return symbolP; |
329 | } | |
330 | ||
331 | locsym->lsy_section = now_seg; | |
332 | local_symbol_set_frag (locsym, frag_now); | |
bd780143 | 333 | locsym->lsy_value = frag_now_fix (); |
49309057 ILT |
334 | } |
335 | else if (!S_IS_DEFINED (symbolP) || S_IS_COMMON (symbolP)) | |
252b5132 RH |
336 | { |
337 | if (S_GET_VALUE (symbolP) == 0) | |
338 | { | |
339 | symbolP->sy_frag = frag_now; | |
340 | #ifdef OBJ_VMS | |
7c743825 | 341 | S_SET_OTHER (symbolP, const_flag); |
252b5132 RH |
342 | #endif |
343 | S_SET_VALUE (symbolP, (valueT) frag_now_fix ()); | |
344 | S_SET_SEGMENT (symbolP, now_seg); | |
345 | #ifdef N_UNDF | |
346 | know (N_UNDF == 0); | |
7c743825 | 347 | #endif /* if we have one, it better be zero. */ |
252b5132 RH |
348 | |
349 | } | |
350 | else | |
351 | { | |
7c743825 KH |
352 | /* There are still several cases to check: |
353 | ||
354 | A .comm/.lcomm symbol being redefined as initialized | |
355 | data is OK | |
356 | ||
357 | A .comm/.lcomm symbol being redefined with a larger | |
358 | size is also OK | |
359 | ||
360 | This only used to be allowed on VMS gas, but Sun cc | |
361 | on the sparc also depends on it. */ | |
252b5132 RH |
362 | |
363 | if (((!S_IS_DEBUG (symbolP) | |
364 | && (!S_IS_DEFINED (symbolP) || S_IS_COMMON (symbolP)) | |
365 | && S_IS_EXTERNAL (symbolP)) | |
366 | || S_GET_SEGMENT (symbolP) == bss_section) | |
367 | && (now_seg == data_section | |
368 | || now_seg == S_GET_SEGMENT (symbolP))) | |
369 | { | |
7c743825 | 370 | /* Select which of the 2 cases this is. */ |
252b5132 RH |
371 | if (now_seg != data_section) |
372 | { | |
7c743825 KH |
373 | /* New .comm for prev .comm symbol. |
374 | ||
375 | If the new size is larger we just change its | |
376 | value. If the new size is smaller, we ignore | |
377 | this symbol. */ | |
252b5132 RH |
378 | if (S_GET_VALUE (symbolP) |
379 | < ((unsigned) frag_now_fix ())) | |
380 | { | |
381 | S_SET_VALUE (symbolP, (valueT) frag_now_fix ()); | |
382 | } | |
383 | } | |
384 | else | |
385 | { | |
386 | /* It is a .comm/.lcomm being converted to initialized | |
387 | data. */ | |
388 | symbolP->sy_frag = frag_now; | |
389 | #ifdef OBJ_VMS | |
7c743825 | 390 | S_SET_OTHER (symbolP, const_flag); |
252b5132 RH |
391 | #endif |
392 | S_SET_VALUE (symbolP, (valueT) frag_now_fix ()); | |
7c743825 | 393 | S_SET_SEGMENT (symbolP, now_seg); /* Keep N_EXT bit. */ |
252b5132 RH |
394 | } |
395 | } | |
396 | else | |
397 | { | |
4c63da97 AM |
398 | #if (!defined (OBJ_AOUT) && !defined (OBJ_MAYBE_AOUT) \ |
399 | && !defined (OBJ_BOUT) && !defined (OBJ_MAYBE_BOUT)) | |
400 | static const char *od_buf = ""; | |
252b5132 | 401 | #else |
4c63da97 AM |
402 | char od_buf[100]; |
403 | od_buf[0] = '\0'; | |
4c63da97 | 404 | if (OUTPUT_FLAVOR == bfd_target_aout_flavour) |
d1a6c242 KH |
405 | sprintf (od_buf, "%d.%d.", |
406 | S_GET_OTHER (symbolP), | |
407 | S_GET_DESC (symbolP)); | |
4c63da97 | 408 | #endif |
0e389e77 | 409 | as_bad (_("symbol `%s' is already defined as \"%s\"/%s%ld"), |
252b5132 RH |
410 | sym_name, |
411 | segment_name (S_GET_SEGMENT (symbolP)), | |
4c63da97 | 412 | od_buf, |
252b5132 | 413 | (long) S_GET_VALUE (symbolP)); |
252b5132 | 414 | } |
7c743825 | 415 | } /* if the undefined symbol has no value */ |
252b5132 RH |
416 | } |
417 | else | |
418 | { | |
7c743825 | 419 | /* Don't blow up if the definition is the same. */ |
252b5132 RH |
420 | if (!(frag_now == symbolP->sy_frag |
421 | && S_GET_VALUE (symbolP) == frag_now_fix () | |
422 | && S_GET_SEGMENT (symbolP) == now_seg)) | |
0e389e77 | 423 | as_bad (_("symbol `%s' is already defined"), sym_name); |
d4887adc | 424 | } |
252b5132 RH |
425 | |
426 | } | |
49309057 ILT |
427 | else if (! flag_keep_locals && bfd_is_local_label_name (stdoutput, sym_name)) |
428 | { | |
429 | symbolP = (symbolS *) local_symbol_make (sym_name, now_seg, | |
430 | (valueT) frag_now_fix (), | |
431 | frag_now); | |
432 | } | |
252b5132 RH |
433 | else |
434 | { | |
435 | symbolP = symbol_new (sym_name, now_seg, (valueT) frag_now_fix (), | |
436 | frag_now); | |
437 | #ifdef OBJ_VMS | |
438 | S_SET_OTHER (symbolP, const_flag); | |
439 | #endif /* OBJ_VMS */ | |
440 | ||
441 | symbol_table_insert (symbolP); | |
d4887adc | 442 | } |
252b5132 RH |
443 | |
444 | if (mri_common_symbol != NULL) | |
445 | { | |
446 | /* This symbol is actually being defined within an MRI common | |
1d3b2b27 | 447 | section. This requires special handling. */ |
49309057 ILT |
448 | if (LOCAL_SYMBOL_CHECK (symbolP)) |
449 | symbolP = local_symbol_convert ((struct local_symbol *) symbolP); | |
252b5132 RH |
450 | symbolP->sy_value.X_op = O_symbol; |
451 | symbolP->sy_value.X_add_symbol = mri_common_symbol; | |
452 | symbolP->sy_value.X_add_number = S_GET_VALUE (mri_common_symbol); | |
453 | symbolP->sy_frag = &zero_address_frag; | |
454 | S_SET_SEGMENT (symbolP, expr_section); | |
455 | symbolP->sy_mri_common = 1; | |
456 | } | |
457 | ||
458 | #ifdef tc_frob_label | |
459 | tc_frob_label (symbolP); | |
460 | #endif | |
461 | #ifdef obj_frob_label | |
462 | obj_frob_label (symbolP); | |
463 | #endif | |
464 | ||
465 | return symbolP; | |
466 | } | |
467 | \f | |
7c743825 | 468 | /* Die if we can't insert the symbol. */ |
252b5132 | 469 | |
7c743825 | 470 | void |
74937d39 | 471 | symbol_table_insert (symbolS *symbolP) |
252b5132 RH |
472 | { |
473 | register const char *error_string; | |
474 | ||
475 | know (symbolP); | |
476 | know (S_GET_NAME (symbolP)); | |
477 | ||
49309057 ILT |
478 | if (LOCAL_SYMBOL_CHECK (symbolP)) |
479 | { | |
480 | error_string = hash_jam (local_hash, S_GET_NAME (symbolP), | |
481 | (PTR) symbolP); | |
482 | if (error_string != NULL) | |
0e389e77 | 483 | as_fatal (_("inserting \"%s\" into symbol table failed: %s"), |
49309057 ILT |
484 | S_GET_NAME (symbolP), error_string); |
485 | return; | |
486 | } | |
487 | ||
252b5132 RH |
488 | if ((error_string = hash_jam (sy_hash, S_GET_NAME (symbolP), (PTR) symbolP))) |
489 | { | |
0e389e77 | 490 | as_fatal (_("inserting \"%s\" into symbol table failed: %s"), |
252b5132 | 491 | S_GET_NAME (symbolP), error_string); |
7c743825 KH |
492 | } /* on error */ |
493 | } | |
252b5132 | 494 | \f |
7c743825 KH |
495 | /* If a symbol name does not exist, create it as undefined, and insert |
496 | it into the symbol table. Return a pointer to it. */ | |
497 | ||
252b5132 | 498 | symbolS * |
74937d39 | 499 | symbol_find_or_make (const char *name) |
252b5132 RH |
500 | { |
501 | register symbolS *symbolP; | |
502 | ||
503 | symbolP = symbol_find (name); | |
504 | ||
505 | if (symbolP == NULL) | |
506 | { | |
49309057 ILT |
507 | if (! flag_keep_locals && bfd_is_local_label_name (stdoutput, name)) |
508 | { | |
509 | symbolP = md_undefined_symbol ((char *) name); | |
510 | if (symbolP != NULL) | |
511 | return symbolP; | |
512 | ||
513 | symbolP = (symbolS *) local_symbol_make (name, undefined_section, | |
514 | (valueT) 0, | |
515 | &zero_address_frag); | |
516 | return symbolP; | |
517 | } | |
49309057 | 518 | |
252b5132 RH |
519 | symbolP = symbol_make (name); |
520 | ||
521 | symbol_table_insert (symbolP); | |
522 | } /* if symbol wasn't found */ | |
523 | ||
524 | return (symbolP); | |
7c743825 | 525 | } |
252b5132 RH |
526 | |
527 | symbolS * | |
74937d39 | 528 | symbol_make (const char *name) |
252b5132 RH |
529 | { |
530 | symbolS *symbolP; | |
531 | ||
7c743825 | 532 | /* Let the machine description default it, e.g. for register names. */ |
252b5132 RH |
533 | symbolP = md_undefined_symbol ((char *) name); |
534 | ||
535 | if (!symbolP) | |
536 | symbolP = symbol_new (name, undefined_section, (valueT) 0, &zero_address_frag); | |
537 | ||
538 | return (symbolP); | |
7c743825 | 539 | } |
252b5132 | 540 | |
9497f5ac NC |
541 | symbolS * |
542 | symbol_clone (symbolS *orgsymP, int replace) | |
543 | { | |
544 | symbolS *newsymP; | |
6a2b6326 | 545 | asymbol *bsymorg, *bsymnew; |
9497f5ac NC |
546 | |
547 | /* Running local_symbol_convert on a clone that's not the one currently | |
548 | in local_hash would incorrectly replace the hash entry. Thus the | |
549 | symbol must be converted here. Note that the rest of the function | |
550 | depends on not encountering an unconverted symbol. */ | |
551 | if (LOCAL_SYMBOL_CHECK (orgsymP)) | |
552 | orgsymP = local_symbol_convert ((struct local_symbol *) orgsymP); | |
6a2b6326 | 553 | bsymorg = orgsymP->bsym; |
9497f5ac NC |
554 | |
555 | know (S_IS_DEFINED (orgsymP)); | |
556 | ||
557 | newsymP = obstack_alloc (¬es, sizeof (*newsymP)); | |
558 | *newsymP = *orgsymP; | |
6a2b6326 JB |
559 | bsymnew = bfd_make_empty_symbol (bfd_asymbol_bfd (bsymorg)); |
560 | if (bsymnew == NULL) | |
561 | as_perror ("%s", "bfd_make_empty_symbol"); | |
562 | newsymP->bsym = bsymnew; | |
563 | bsymnew->name = bsymorg->name; | |
564 | bsymnew->flags = bsymorg->flags; | |
565 | bsymnew->section = bsymorg->section; | |
566 | bsymnew->udata.p = (PTR) newsymP; | |
567 | bfd_copy_private_symbol_data (bfd_asymbol_bfd (bsymorg), bsymorg, | |
568 | bfd_asymbol_bfd (bsymnew), bsymnew); | |
569 | ||
570 | #ifdef obj_symbol_clone_hook | |
571 | obj_symbol_clone_hook (newsymP, orgsymP); | |
572 | #endif | |
573 | ||
574 | #ifdef tc_symbol_clone_hook | |
575 | tc_symbol_clone_hook (newsymP, orgsymP); | |
576 | #endif | |
9497f5ac NC |
577 | |
578 | if (replace) | |
579 | { | |
580 | if (symbol_rootP == orgsymP) | |
581 | symbol_rootP = newsymP; | |
582 | else if (orgsymP->sy_previous) | |
583 | { | |
584 | orgsymP->sy_previous->sy_next = newsymP; | |
585 | orgsymP->sy_previous = NULL; | |
586 | } | |
587 | if (symbol_lastP == orgsymP) | |
588 | symbol_lastP = newsymP; | |
589 | else if (orgsymP->sy_next) | |
590 | orgsymP->sy_next->sy_previous = newsymP; | |
591 | orgsymP->sy_next = NULL; | |
592 | debug_verify_symchain (symbol_rootP, symbol_lastP); | |
593 | ||
594 | symbol_table_insert (newsymP); | |
595 | } | |
596 | ||
597 | return newsymP; | |
598 | } | |
599 | ||
600 | /* Referenced symbols, if they are forward references, need to be cloned | |
601 | (without replacing the original) so that the value of the referenced | |
602 | symbols at the point of use . */ | |
603 | ||
604 | #undef symbol_clone_if_forward_ref | |
605 | symbolS * | |
606 | symbol_clone_if_forward_ref (symbolS *symbolP, int is_forward) | |
607 | { | |
608 | if (symbolP && !LOCAL_SYMBOL_CHECK (symbolP)) | |
609 | { | |
610 | symbolS *add_symbol = symbolP->sy_value.X_add_symbol; | |
611 | symbolS *op_symbol = symbolP->sy_value.X_op_symbol; | |
612 | ||
613 | if (symbolP->sy_forward_ref) | |
614 | is_forward = 1; | |
615 | ||
616 | if (is_forward) | |
617 | { | |
618 | /* assign_symbol() clones volatile symbols; pre-existing expressions | |
619 | hold references to the original instance, but want the current | |
620 | value. Just repeat the lookup. */ | |
621 | if (add_symbol && S_IS_VOLATILE (add_symbol)) | |
622 | add_symbol = symbol_find_exact (S_GET_NAME (add_symbol)); | |
623 | if (op_symbol && S_IS_VOLATILE (op_symbol)) | |
624 | op_symbol = symbol_find_exact (S_GET_NAME (op_symbol)); | |
625 | } | |
626 | ||
627 | /* Re-using sy_resolving here, as this routine cannot get called from | |
628 | symbol resolution code. */ | |
629 | if (symbolP->bsym->section == expr_section && !symbolP->sy_resolving) | |
630 | { | |
631 | symbolP->sy_resolving = 1; | |
632 | add_symbol = symbol_clone_if_forward_ref (add_symbol, is_forward); | |
633 | op_symbol = symbol_clone_if_forward_ref (op_symbol, is_forward); | |
634 | symbolP->sy_resolving = 0; | |
635 | } | |
636 | ||
637 | if (symbolP->sy_forward_ref | |
638 | || add_symbol != symbolP->sy_value.X_add_symbol | |
639 | || op_symbol != symbolP->sy_value.X_op_symbol) | |
640 | symbolP = symbol_clone (symbolP, 0); | |
641 | ||
642 | symbolP->sy_value.X_add_symbol = add_symbol; | |
643 | symbolP->sy_value.X_op_symbol = op_symbol; | |
644 | } | |
645 | ||
646 | return symbolP; | |
647 | } | |
648 | ||
b7d6ed97 | 649 | symbolS * |
74937d39 | 650 | symbol_temp_new (segT seg, valueT ofs, fragS *frag) |
b7d6ed97 | 651 | { |
756d1d01 | 652 | return symbol_new (FAKE_LABEL_NAME, seg, ofs, frag); |
b7d6ed97 RH |
653 | } |
654 | ||
655 | symbolS * | |
74937d39 | 656 | symbol_temp_new_now (void) |
b7d6ed97 RH |
657 | { |
658 | return symbol_temp_new (now_seg, frag_now_fix (), frag_now); | |
659 | } | |
660 | ||
661 | symbolS * | |
74937d39 | 662 | symbol_temp_make (void) |
b7d6ed97 | 663 | { |
756d1d01 | 664 | return symbol_make (FAKE_LABEL_NAME); |
b7d6ed97 RH |
665 | } |
666 | ||
7c743825 KH |
667 | /* Implement symbol table lookup. |
668 | In: A symbol's name as a string: '\0' can't be part of a symbol name. | |
669 | Out: NULL if the name was not in the symbol table, else the address | |
670 | of a struct symbol associated with that name. */ | |
252b5132 | 671 | |
9758f3fc | 672 | symbolS * |
74937d39 | 673 | symbol_find_exact (const char *name) |
06e77878 AO |
674 | { |
675 | return symbol_find_exact_noref (name, 0); | |
676 | } | |
677 | ||
678 | symbolS * | |
679 | symbol_find_exact_noref (const char *name, int noref) | |
9758f3fc | 680 | { |
7be1c489 | 681 | struct local_symbol *locsym; |
06e77878 | 682 | symbolS* sym; |
9758f3fc | 683 | |
7be1c489 AM |
684 | locsym = (struct local_symbol *) hash_find (local_hash, name); |
685 | if (locsym != NULL) | |
686 | return (symbolS *) locsym; | |
9758f3fc | 687 | |
06e77878 AO |
688 | sym = ((symbolS *) hash_find (sy_hash, name)); |
689 | ||
690 | /* Any references to the symbol, except for the reference in | |
691 | .weakref, must clear this flag, such that the symbol does not | |
692 | turn into a weak symbol. Note that we don't have to handle the | |
693 | local_symbol case, since a weakrefd is always promoted out of the | |
694 | local_symbol table when it is turned into a weak symbol. */ | |
695 | if (sym && ! noref) | |
696 | S_CLEAR_WEAKREFD (sym); | |
697 | ||
698 | return sym; | |
9758f3fc AM |
699 | } |
700 | ||
252b5132 | 701 | symbolS * |
91c4c449 | 702 | symbol_find (const char *name) |
06e77878 AO |
703 | { |
704 | return symbol_find_noref (name, 0); | |
705 | } | |
706 | ||
707 | symbolS * | |
708 | symbol_find_noref (const char *name, int noref) | |
252b5132 | 709 | { |
252b5132 RH |
710 | #ifdef tc_canonicalize_symbol_name |
711 | { | |
712 | char *copy; | |
03987ced | 713 | size_t len = strlen (name) + 1; |
252b5132 | 714 | |
03987ced RH |
715 | copy = (char *) alloca (len); |
716 | memcpy (copy, name, len); | |
252b5132 RH |
717 | name = tc_canonicalize_symbol_name (copy); |
718 | } | |
719 | #endif | |
720 | ||
721 | if (! symbols_case_sensitive) | |
722 | { | |
03987ced RH |
723 | char *copy; |
724 | const char *orig; | |
725 | unsigned char c; | |
726 | ||
727 | orig = name; | |
728 | name = copy = (char *) alloca (strlen (name) + 1); | |
729 | ||
730 | while ((c = *orig++) != '\0') | |
731 | { | |
3882b010 | 732 | *copy++ = TOUPPER (c); |
03987ced RH |
733 | } |
734 | *copy = '\0'; | |
252b5132 RH |
735 | } |
736 | ||
06e77878 | 737 | return symbol_find_exact_noref (name, noref); |
252b5132 RH |
738 | } |
739 | ||
7c743825 KH |
740 | /* Once upon a time, symbols were kept in a singly linked list. At |
741 | least coff needs to be able to rearrange them from time to time, for | |
742 | which a doubly linked list is much more convenient. Loic did these | |
743 | as macros which seemed dangerous to me so they're now functions. | |
744 | xoxorich. */ | |
745 | ||
746 | /* Link symbol ADDME after symbol TARGET in the chain. */ | |
252b5132 | 747 | |
7c743825 | 748 | void |
74937d39 KH |
749 | symbol_append (symbolS *addme, symbolS *target, |
750 | symbolS **rootPP, symbolS **lastPP) | |
252b5132 | 751 | { |
49309057 ILT |
752 | if (LOCAL_SYMBOL_CHECK (addme)) |
753 | abort (); | |
754 | if (target != NULL && LOCAL_SYMBOL_CHECK (target)) | |
755 | abort (); | |
756 | ||
252b5132 RH |
757 | if (target == NULL) |
758 | { | |
759 | know (*rootPP == NULL); | |
760 | know (*lastPP == NULL); | |
761 | addme->sy_next = NULL; | |
252b5132 | 762 | addme->sy_previous = NULL; |
252b5132 RH |
763 | *rootPP = addme; |
764 | *lastPP = addme; | |
765 | return; | |
7c743825 | 766 | } /* if the list is empty */ |
252b5132 RH |
767 | |
768 | if (target->sy_next != NULL) | |
769 | { | |
252b5132 | 770 | target->sy_next->sy_previous = addme; |
252b5132 RH |
771 | } |
772 | else | |
773 | { | |
774 | know (*lastPP == target); | |
775 | *lastPP = addme; | |
7c743825 | 776 | } /* if we have a next */ |
252b5132 RH |
777 | |
778 | addme->sy_next = target->sy_next; | |
779 | target->sy_next = addme; | |
252b5132 | 780 | addme->sy_previous = target; |
252b5132 RH |
781 | |
782 | debug_verify_symchain (symbol_rootP, symbol_lastP); | |
783 | } | |
784 | ||
7c743825 KH |
785 | /* Set the chain pointers of SYMBOL to null. */ |
786 | ||
787 | void | |
74937d39 | 788 | symbol_clear_list_pointers (symbolS *symbolP) |
252b5132 | 789 | { |
49309057 ILT |
790 | if (LOCAL_SYMBOL_CHECK (symbolP)) |
791 | abort (); | |
252b5132 | 792 | symbolP->sy_next = NULL; |
252b5132 | 793 | symbolP->sy_previous = NULL; |
252b5132 RH |
794 | } |
795 | ||
7c743825 KH |
796 | /* Remove SYMBOLP from the list. */ |
797 | ||
798 | void | |
74937d39 | 799 | symbol_remove (symbolS *symbolP, symbolS **rootPP, symbolS **lastPP) |
252b5132 | 800 | { |
49309057 ILT |
801 | if (LOCAL_SYMBOL_CHECK (symbolP)) |
802 | abort (); | |
803 | ||
252b5132 RH |
804 | if (symbolP == *rootPP) |
805 | { | |
806 | *rootPP = symbolP->sy_next; | |
7c743825 | 807 | } /* if it was the root */ |
252b5132 RH |
808 | |
809 | if (symbolP == *lastPP) | |
810 | { | |
811 | *lastPP = symbolP->sy_previous; | |
7c743825 | 812 | } /* if it was the tail */ |
252b5132 RH |
813 | |
814 | if (symbolP->sy_next != NULL) | |
815 | { | |
816 | symbolP->sy_next->sy_previous = symbolP->sy_previous; | |
7c743825 | 817 | } /* if not last */ |
252b5132 RH |
818 | |
819 | if (symbolP->sy_previous != NULL) | |
820 | { | |
821 | symbolP->sy_previous->sy_next = symbolP->sy_next; | |
7c743825 | 822 | } /* if not first */ |
252b5132 RH |
823 | |
824 | debug_verify_symchain (*rootPP, *lastPP); | |
825 | } | |
826 | ||
7c743825 KH |
827 | /* Link symbol ADDME before symbol TARGET in the chain. */ |
828 | ||
829 | void | |
74937d39 KH |
830 | symbol_insert (symbolS *addme, symbolS *target, |
831 | symbolS **rootPP, symbolS **lastPP ATTRIBUTE_UNUSED) | |
252b5132 | 832 | { |
49309057 ILT |
833 | if (LOCAL_SYMBOL_CHECK (addme)) |
834 | abort (); | |
835 | if (LOCAL_SYMBOL_CHECK (target)) | |
836 | abort (); | |
837 | ||
252b5132 RH |
838 | if (target->sy_previous != NULL) |
839 | { | |
840 | target->sy_previous->sy_next = addme; | |
841 | } | |
842 | else | |
843 | { | |
844 | know (*rootPP == target); | |
845 | *rootPP = addme; | |
7c743825 | 846 | } /* if not first */ |
252b5132 RH |
847 | |
848 | addme->sy_previous = target->sy_previous; | |
849 | target->sy_previous = addme; | |
850 | addme->sy_next = target; | |
851 | ||
852 | debug_verify_symchain (*rootPP, *lastPP); | |
853 | } | |
854 | ||
7c743825 | 855 | void |
74937d39 | 856 | verify_symbol_chain (symbolS *rootP, symbolS *lastP) |
252b5132 RH |
857 | { |
858 | symbolS *symbolP = rootP; | |
859 | ||
860 | if (symbolP == NULL) | |
861 | return; | |
862 | ||
863 | for (; symbol_next (symbolP) != NULL; symbolP = symbol_next (symbolP)) | |
864 | { | |
49309057 | 865 | assert (symbolP->bsym != NULL); |
252b5132 | 866 | assert (symbolP->sy_next->sy_previous == symbolP); |
252b5132 RH |
867 | } |
868 | ||
869 | assert (lastP == symbolP); | |
870 | } | |
871 | ||
0909233e | 872 | static void |
74937d39 | 873 | report_op_error (symbolS *symp, symbolS *left, symbolS *right) |
0909233e AM |
874 | { |
875 | char *file; | |
876 | unsigned int line; | |
877 | segT seg_left = S_GET_SEGMENT (left); | |
878 | segT seg_right = right ? S_GET_SEGMENT (right) : 0; | |
1d3b2b27 | 879 | |
0909233e AM |
880 | if (expr_symbol_where (symp, &file, &line)) |
881 | { | |
882 | if (seg_left == undefined_section) | |
883 | as_bad_where (file, line, | |
884 | _("undefined symbol `%s' in operation"), | |
885 | S_GET_NAME (left)); | |
886 | if (seg_right == undefined_section) | |
887 | as_bad_where (file, line, | |
888 | _("undefined symbol `%s' in operation"), | |
889 | S_GET_NAME (right)); | |
890 | if (seg_left != undefined_section | |
891 | && seg_right != undefined_section) | |
892 | { | |
893 | if (right) | |
894 | as_bad_where (file, line, | |
895 | _("invalid sections for operation on `%s' and `%s'"), | |
896 | S_GET_NAME (left), S_GET_NAME (right)); | |
897 | else | |
898 | as_bad_where (file, line, | |
899 | _("invalid section for operation on `%s'"), | |
900 | S_GET_NAME (left)); | |
901 | } | |
1d3b2b27 | 902 | |
0909233e AM |
903 | } |
904 | else | |
905 | { | |
906 | if (seg_left == undefined_section) | |
907 | as_bad (_("undefined symbol `%s' in operation setting `%s'"), | |
908 | S_GET_NAME (left), S_GET_NAME (symp)); | |
909 | if (seg_right == undefined_section) | |
910 | as_bad (_("undefined symbol `%s' in operation setting `%s'"), | |
911 | S_GET_NAME (right), S_GET_NAME (symp)); | |
912 | if (seg_left != undefined_section | |
913 | && seg_right != undefined_section) | |
914 | { | |
915 | if (right) | |
916 | as_bad_where (file, line, | |
917 | _("invalid sections for operation on `%s' and `%s' setting `%s'"), | |
918 | S_GET_NAME (left), S_GET_NAME (right), S_GET_NAME (symp)); | |
919 | else | |
920 | as_bad_where (file, line, | |
921 | _("invalid section for operation on `%s' setting `%s'"), | |
922 | S_GET_NAME (left), S_GET_NAME (symp)); | |
923 | } | |
924 | } | |
925 | } | |
926 | ||
252b5132 RH |
927 | /* Resolve the value of a symbol. This is called during the final |
928 | pass over the symbol table to resolve any symbols with complex | |
929 | values. */ | |
930 | ||
931 | valueT | |
74937d39 | 932 | resolve_symbol_value (symbolS *symp) |
252b5132 RH |
933 | { |
934 | int resolved; | |
03e83a45 | 935 | valueT final_val = 0; |
252b5132 RH |
936 | segT final_seg; |
937 | ||
49309057 ILT |
938 | if (LOCAL_SYMBOL_CHECK (symp)) |
939 | { | |
940 | struct local_symbol *locsym = (struct local_symbol *) symp; | |
941 | ||
bd780143 | 942 | final_val = locsym->lsy_value; |
49309057 | 943 | if (local_symbol_resolved_p (locsym)) |
bd780143 | 944 | return final_val; |
49309057 | 945 | |
bd780143 | 946 | final_val += local_symbol_get_frag (locsym)->fr_address / OCTETS_PER_BYTE; |
49309057 | 947 | |
6386f3a7 | 948 | if (finalize_syms) |
49309057 | 949 | { |
bd780143 | 950 | locsym->lsy_value = final_val; |
49309057 ILT |
951 | local_symbol_mark_resolved (locsym); |
952 | } | |
953 | ||
954 | return final_val; | |
955 | } | |
956 | ||
252b5132 RH |
957 | if (symp->sy_resolved) |
958 | { | |
959 | if (symp->sy_value.X_op == O_constant) | |
960 | return (valueT) symp->sy_value.X_add_number; | |
961 | else | |
962 | return 0; | |
963 | } | |
964 | ||
965 | resolved = 0; | |
966 | final_seg = S_GET_SEGMENT (symp); | |
967 | ||
968 | if (symp->sy_resolving) | |
969 | { | |
6386f3a7 | 970 | if (finalize_syms) |
0e389e77 | 971 | as_bad (_("symbol definition loop encountered at `%s'"), |
7c743825 | 972 | S_GET_NAME (symp)); |
252b5132 RH |
973 | final_val = 0; |
974 | resolved = 1; | |
975 | } | |
976 | else | |
977 | { | |
978 | symbolS *add_symbol, *op_symbol; | |
979 | offsetT left, right; | |
980 | segT seg_left, seg_right; | |
981 | operatorT op; | |
2d034539 | 982 | int move_seg_ok; |
252b5132 RH |
983 | |
984 | symp->sy_resolving = 1; | |
985 | ||
986 | /* Help out with CSE. */ | |
987 | add_symbol = symp->sy_value.X_add_symbol; | |
988 | op_symbol = symp->sy_value.X_op_symbol; | |
989 | final_val = symp->sy_value.X_add_number; | |
990 | op = symp->sy_value.X_op; | |
991 | ||
992 | switch (op) | |
993 | { | |
994 | default: | |
995 | BAD_CASE (op); | |
996 | break; | |
997 | ||
998 | case O_absent: | |
999 | final_val = 0; | |
1000 | /* Fall through. */ | |
1001 | ||
1002 | case O_constant: | |
bea9907b | 1003 | final_val += symp->sy_frag->fr_address / OCTETS_PER_BYTE; |
252b5132 RH |
1004 | if (final_seg == expr_section) |
1005 | final_seg = absolute_section; | |
1006 | resolved = 1; | |
1007 | break; | |
1008 | ||
1009 | case O_symbol: | |
1010 | case O_symbol_rva: | |
6386f3a7 | 1011 | left = resolve_symbol_value (add_symbol); |
e0890092 AM |
1012 | seg_left = S_GET_SEGMENT (add_symbol); |
1013 | if (finalize_syms) | |
1014 | symp->sy_value.X_op_symbol = NULL; | |
252b5132 | 1015 | |
e0890092 | 1016 | do_symbol: |
06e77878 AO |
1017 | if (S_IS_WEAKREFR (symp)) |
1018 | { | |
1019 | assert (final_val == 0); | |
1020 | if (S_IS_WEAKREFR (add_symbol)) | |
1021 | { | |
1022 | assert (add_symbol->sy_value.X_op == O_symbol | |
1023 | && add_symbol->sy_value.X_add_number == 0); | |
1024 | add_symbol = add_symbol->sy_value.X_add_symbol; | |
1025 | assert (! S_IS_WEAKREFR (add_symbol)); | |
1026 | symp->sy_value.X_add_symbol = add_symbol; | |
1027 | } | |
1028 | } | |
1029 | ||
252b5132 RH |
1030 | if (symp->sy_mri_common) |
1031 | { | |
1032 | /* This is a symbol inside an MRI common section. The | |
e0890092 AM |
1033 | relocation routines are going to handle it specially. |
1034 | Don't change the value. */ | |
49309057 | 1035 | resolved = symbol_resolved_p (add_symbol); |
252b5132 RH |
1036 | break; |
1037 | } | |
1038 | ||
6386f3a7 | 1039 | if (finalize_syms && final_val == 0) |
49309057 ILT |
1040 | { |
1041 | if (LOCAL_SYMBOL_CHECK (add_symbol)) | |
1042 | add_symbol = local_symbol_convert ((struct local_symbol *) | |
1043 | add_symbol); | |
1044 | copy_symbol_attributes (symp, add_symbol); | |
1045 | } | |
252b5132 | 1046 | |
e0890092 AM |
1047 | /* If we have equated this symbol to an undefined or common |
1048 | symbol, keep X_op set to O_symbol, and don't change | |
1049 | X_add_number. This permits the routine which writes out | |
1050 | relocation to detect this case, and convert the | |
1051 | relocation to be against the symbol to which this symbol | |
1052 | is equated. */ | |
977cdf5a | 1053 | if (! S_IS_DEFINED (add_symbol) |
7be1c489 | 1054 | #if defined (OBJ_COFF) && defined (TE_PE) |
977cdf5a NC |
1055 | || S_IS_WEAK (add_symbol) |
1056 | #endif | |
1057 | || S_IS_COMMON (add_symbol)) | |
252b5132 | 1058 | { |
6386f3a7 | 1059 | if (finalize_syms) |
252b5132 | 1060 | { |
252b5132 RH |
1061 | symp->sy_value.X_op = O_symbol; |
1062 | symp->sy_value.X_add_symbol = add_symbol; | |
1063 | symp->sy_value.X_add_number = final_val; | |
e0890092 AM |
1064 | /* Use X_op_symbol as a flag. */ |
1065 | symp->sy_value.X_op_symbol = add_symbol; | |
1066 | final_seg = seg_left; | |
252b5132 RH |
1067 | } |
1068 | final_val = 0; | |
49309057 | 1069 | resolved = symbol_resolved_p (add_symbol); |
c89c8534 | 1070 | symp->sy_resolving = 0; |
252b5132 RH |
1071 | goto exit_dont_set_value; |
1072 | } | |
e0890092 AM |
1073 | else if (finalize_syms && final_seg == expr_section |
1074 | && seg_left != expr_section) | |
1075 | { | |
1076 | /* If the symbol is an expression symbol, do similarly | |
1077 | as for undefined and common syms above. Handles | |
1078 | "sym +/- expr" where "expr" cannot be evaluated | |
1079 | immediately, and we want relocations to be against | |
1080 | "sym", eg. because it is weak. */ | |
1081 | symp->sy_value.X_op = O_symbol; | |
1082 | symp->sy_value.X_add_symbol = add_symbol; | |
1083 | symp->sy_value.X_add_number = final_val; | |
1084 | symp->sy_value.X_op_symbol = add_symbol; | |
1085 | final_seg = seg_left; | |
1086 | final_val += symp->sy_frag->fr_address + left; | |
1087 | resolved = symbol_resolved_p (add_symbol); | |
1088 | symp->sy_resolving = 0; | |
1089 | goto exit_dont_set_value; | |
1090 | } | |
252b5132 RH |
1091 | else |
1092 | { | |
1093 | final_val += symp->sy_frag->fr_address + left; | |
1094 | if (final_seg == expr_section || final_seg == undefined_section) | |
e0890092 | 1095 | final_seg = seg_left; |
252b5132 RH |
1096 | } |
1097 | ||
49309057 | 1098 | resolved = symbol_resolved_p (add_symbol); |
06e77878 AO |
1099 | if (S_IS_WEAKREFR (symp)) |
1100 | goto exit_dont_set_value; | |
252b5132 RH |
1101 | break; |
1102 | ||
1103 | case O_uminus: | |
1104 | case O_bit_not: | |
1105 | case O_logical_not: | |
6386f3a7 | 1106 | left = resolve_symbol_value (add_symbol); |
784b640d | 1107 | seg_left = S_GET_SEGMENT (add_symbol); |
252b5132 | 1108 | |
0909233e AM |
1109 | /* By reducing these to the relevant dyadic operator, we get |
1110 | !S -> S == 0 permitted on anything, | |
1111 | -S -> 0 - S only permitted on absolute | |
1112 | ~S -> S ^ ~0 only permitted on absolute */ | |
1113 | if (op != O_logical_not && seg_left != absolute_section | |
1114 | && finalize_syms) | |
1115 | report_op_error (symp, add_symbol, NULL); | |
1d3b2b27 | 1116 | |
0909233e AM |
1117 | if (final_seg == expr_section || final_seg == undefined_section) |
1118 | final_seg = absolute_section; | |
1d3b2b27 | 1119 | |
252b5132 RH |
1120 | if (op == O_uminus) |
1121 | left = -left; | |
1122 | else if (op == O_logical_not) | |
1123 | left = !left; | |
1124 | else | |
1125 | left = ~left; | |
1126 | ||
1127 | final_val += left + symp->sy_frag->fr_address; | |
252b5132 | 1128 | |
49309057 | 1129 | resolved = symbol_resolved_p (add_symbol); |
252b5132 RH |
1130 | break; |
1131 | ||
1132 | case O_multiply: | |
1133 | case O_divide: | |
1134 | case O_modulus: | |
1135 | case O_left_shift: | |
1136 | case O_right_shift: | |
1137 | case O_bit_inclusive_or: | |
1138 | case O_bit_or_not: | |
1139 | case O_bit_exclusive_or: | |
1140 | case O_bit_and: | |
1141 | case O_add: | |
1142 | case O_subtract: | |
1143 | case O_eq: | |
1144 | case O_ne: | |
1145 | case O_lt: | |
1146 | case O_le: | |
1147 | case O_ge: | |
1148 | case O_gt: | |
1149 | case O_logical_and: | |
1150 | case O_logical_or: | |
6386f3a7 AM |
1151 | left = resolve_symbol_value (add_symbol); |
1152 | right = resolve_symbol_value (op_symbol); | |
252b5132 RH |
1153 | seg_left = S_GET_SEGMENT (add_symbol); |
1154 | seg_right = S_GET_SEGMENT (op_symbol); | |
1155 | ||
1156 | /* Simplify addition or subtraction of a constant by folding the | |
1157 | constant into X_add_number. */ | |
e0890092 | 1158 | if (op == O_add) |
252b5132 RH |
1159 | { |
1160 | if (seg_right == absolute_section) | |
1161 | { | |
e0890092 | 1162 | final_val += right; |
252b5132 RH |
1163 | goto do_symbol; |
1164 | } | |
e0890092 | 1165 | else if (seg_left == absolute_section) |
252b5132 | 1166 | { |
252b5132 RH |
1167 | final_val += left; |
1168 | add_symbol = op_symbol; | |
1169 | left = right; | |
e0890092 AM |
1170 | seg_left = seg_right; |
1171 | goto do_symbol; | |
1172 | } | |
1173 | } | |
1174 | else if (op == O_subtract) | |
1175 | { | |
1176 | if (seg_right == absolute_section) | |
1177 | { | |
1178 | final_val -= right; | |
252b5132 RH |
1179 | goto do_symbol; |
1180 | } | |
1181 | } | |
1182 | ||
2d034539 | 1183 | move_seg_ok = 1; |
e0890092 AM |
1184 | /* Equality and non-equality tests are permitted on anything. |
1185 | Subtraction, and other comparison operators are permitted if | |
1186 | both operands are in the same section. Otherwise, both | |
1187 | operands must be absolute. We already handled the case of | |
1188 | addition or subtraction of a constant above. This will | |
1189 | probably need to be changed for an object file format which | |
2d034539 NC |
1190 | supports arbitrary expressions, such as IEEE-695. */ |
1191 | if (!(seg_left == absolute_section | |
0909233e AM |
1192 | && seg_right == absolute_section) |
1193 | && !(op == O_eq || op == O_ne) | |
1194 | && !((op == O_subtract | |
1195 | || op == O_lt || op == O_le || op == O_ge || op == O_gt) | |
1196 | && seg_left == seg_right | |
1197 | && (seg_left != undefined_section | |
1198 | || add_symbol == op_symbol))) | |
2d034539 NC |
1199 | { |
1200 | /* Don't emit messages unless we're finalizing the symbol value, | |
1201 | otherwise we may get the same message multiple times. */ | |
1202 | if (finalize_syms) | |
1203 | report_op_error (symp, add_symbol, op_symbol); | |
1204 | /* However do not move the symbol into the absolute section | |
1205 | if it cannot currently be resolved - this would confuse | |
1206 | other parts of the assembler into believing that the | |
1207 | expression had been evaluated to zero. */ | |
1208 | else | |
1209 | move_seg_ok = 0; | |
1210 | } | |
1d3b2b27 | 1211 | |
2d034539 NC |
1212 | if (move_seg_ok |
1213 | && (final_seg == expr_section || final_seg == undefined_section)) | |
0909233e | 1214 | final_seg = absolute_section; |
252b5132 RH |
1215 | |
1216 | /* Check for division by zero. */ | |
1217 | if ((op == O_divide || op == O_modulus) && right == 0) | |
1218 | { | |
1219 | /* If seg_right is not absolute_section, then we've | |
e0890092 | 1220 | already issued a warning about using a bad symbol. */ |
6386f3a7 | 1221 | if (seg_right == absolute_section && finalize_syms) |
252b5132 RH |
1222 | { |
1223 | char *file; | |
1224 | unsigned int line; | |
1225 | ||
1226 | if (expr_symbol_where (symp, &file, &line)) | |
1227 | as_bad_where (file, line, _("division by zero")); | |
1228 | else | |
0e389e77 | 1229 | as_bad (_("division by zero when setting `%s'"), |
252b5132 RH |
1230 | S_GET_NAME (symp)); |
1231 | } | |
1232 | ||
1233 | right = 1; | |
1234 | } | |
1235 | ||
1236 | switch (symp->sy_value.X_op) | |
1237 | { | |
1238 | case O_multiply: left *= right; break; | |
1239 | case O_divide: left /= right; break; | |
1240 | case O_modulus: left %= right; break; | |
1241 | case O_left_shift: left <<= right; break; | |
1242 | case O_right_shift: left >>= right; break; | |
1243 | case O_bit_inclusive_or: left |= right; break; | |
1244 | case O_bit_or_not: left |= ~right; break; | |
1245 | case O_bit_exclusive_or: left ^= right; break; | |
1246 | case O_bit_and: left &= right; break; | |
1247 | case O_add: left += right; break; | |
1248 | case O_subtract: left -= right; break; | |
e0890092 AM |
1249 | case O_eq: |
1250 | case O_ne: | |
1251 | left = (left == right && seg_left == seg_right | |
1252 | && (seg_left != undefined_section | |
1253 | || add_symbol == op_symbol) | |
1254 | ? ~ (offsetT) 0 : 0); | |
1255 | if (symp->sy_value.X_op == O_ne) | |
1256 | left = ~left; | |
1257 | break; | |
252b5132 RH |
1258 | case O_lt: left = left < right ? ~ (offsetT) 0 : 0; break; |
1259 | case O_le: left = left <= right ? ~ (offsetT) 0 : 0; break; | |
1260 | case O_ge: left = left >= right ? ~ (offsetT) 0 : 0; break; | |
1261 | case O_gt: left = left > right ? ~ (offsetT) 0 : 0; break; | |
1262 | case O_logical_and: left = left && right; break; | |
1263 | case O_logical_or: left = left || right; break; | |
1264 | default: abort (); | |
1265 | } | |
1266 | ||
1267 | final_val += symp->sy_frag->fr_address + left; | |
1268 | if (final_seg == expr_section || final_seg == undefined_section) | |
784b640d AM |
1269 | { |
1270 | if (seg_left == undefined_section | |
1271 | || seg_right == undefined_section) | |
1272 | final_seg = undefined_section; | |
1273 | else if (seg_left == absolute_section) | |
1274 | final_seg = seg_right; | |
1275 | else | |
1276 | final_seg = seg_left; | |
1277 | } | |
49309057 ILT |
1278 | resolved = (symbol_resolved_p (add_symbol) |
1279 | && symbol_resolved_p (op_symbol)); | |
7c743825 | 1280 | break; |
252b5132 RH |
1281 | |
1282 | case O_register: | |
1283 | case O_big: | |
1284 | case O_illegal: | |
1285 | /* Give an error (below) if not in expr_section. We don't | |
1286 | want to worry about expr_section symbols, because they | |
1287 | are fictional (they are created as part of expression | |
1288 | resolution), and any problems may not actually mean | |
1289 | anything. */ | |
1290 | break; | |
1291 | } | |
1292 | ||
1293 | symp->sy_resolving = 0; | |
1294 | } | |
1295 | ||
6386f3a7 | 1296 | if (finalize_syms) |
05bdb37e | 1297 | S_SET_VALUE (symp, final_val); |
252b5132 | 1298 | |
05bdb37e AM |
1299 | exit_dont_set_value: |
1300 | /* Always set the segment, even if not finalizing the value. | |
1301 | The segment is used to determine whether a symbol is defined. */ | |
05bdb37e | 1302 | S_SET_SEGMENT (symp, final_seg); |
252b5132 | 1303 | |
252b5132 | 1304 | /* Don't worry if we can't resolve an expr_section symbol. */ |
6386f3a7 | 1305 | if (finalize_syms) |
252b5132 RH |
1306 | { |
1307 | if (resolved) | |
1308 | symp->sy_resolved = 1; | |
1309 | else if (S_GET_SEGMENT (symp) != expr_section) | |
1310 | { | |
0e389e77 | 1311 | as_bad (_("can't resolve value for symbol `%s'"), |
7c743825 | 1312 | S_GET_NAME (symp)); |
252b5132 RH |
1313 | symp->sy_resolved = 1; |
1314 | } | |
1315 | } | |
1316 | ||
1317 | return final_val; | |
1318 | } | |
1319 | ||
74937d39 | 1320 | static void resolve_local_symbol (const char *, PTR); |
49309057 ILT |
1321 | |
1322 | /* A static function passed to hash_traverse. */ | |
1323 | ||
1324 | static void | |
74937d39 | 1325 | resolve_local_symbol (const char *key ATTRIBUTE_UNUSED, PTR value) |
49309057 ILT |
1326 | { |
1327 | if (value != NULL) | |
6386f3a7 | 1328 | resolve_symbol_value (value); |
49309057 ILT |
1329 | } |
1330 | ||
49309057 ILT |
1331 | /* Resolve all local symbols. */ |
1332 | ||
1333 | void | |
74937d39 | 1334 | resolve_local_symbol_values (void) |
49309057 | 1335 | { |
49309057 | 1336 | hash_traverse (local_hash, resolve_local_symbol); |
49309057 ILT |
1337 | } |
1338 | ||
9497f5ac NC |
1339 | /* Obtain the current value of a symbol without changing any |
1340 | sub-expressions used. */ | |
1341 | ||
1342 | int | |
1343 | snapshot_symbol (symbolS *symbolP, valueT *valueP, segT *segP, fragS **fragPP) | |
1344 | { | |
1345 | if (LOCAL_SYMBOL_CHECK (symbolP)) | |
1346 | { | |
1347 | struct local_symbol *locsym = (struct local_symbol *) symbolP; | |
1348 | ||
1349 | *valueP = locsym->lsy_value; | |
1350 | *segP = locsym->lsy_section; | |
1351 | *fragPP = local_symbol_get_frag (locsym); | |
1352 | } | |
1353 | else | |
1354 | { | |
1355 | expressionS expr = symbolP->sy_value; | |
1356 | ||
1357 | if (!symbolP->sy_resolved && expr.X_op != O_illegal) | |
1358 | { | |
1359 | int resolved; | |
1360 | ||
1361 | if (symbolP->sy_resolving) | |
1362 | return 0; | |
1363 | symbolP->sy_resolving = 1; | |
1364 | resolved = resolve_expression (&expr); | |
1365 | symbolP->sy_resolving = 0; | |
1366 | if (!resolved) | |
1367 | return 0; | |
1368 | ||
1369 | switch (expr.X_op) | |
1370 | { | |
1371 | case O_constant: | |
1372 | case O_register: | |
1373 | /* This check wouldn't be needed if pseudo_set() didn't set | |
1374 | symbols equated to bare symbols to undefined_section. */ | |
1375 | if (symbolP->bsym->section != undefined_section | |
1376 | || symbolP->sy_value.X_op != O_symbol) | |
1377 | break; | |
1378 | /* Fall thru. */ | |
1379 | case O_symbol: | |
1380 | case O_symbol_rva: | |
1381 | symbolP = expr.X_add_symbol; | |
1382 | break; | |
1383 | default: | |
1384 | return 0; | |
1385 | } | |
1386 | } | |
1387 | ||
1388 | *valueP = expr.X_add_number; | |
1389 | *segP = symbolP->bsym->section; | |
1390 | *fragPP = symbolP->sy_frag; | |
1391 | ||
1392 | if (*segP == expr_section) | |
1393 | switch (expr.X_op) | |
1394 | { | |
1395 | case O_constant: *segP = absolute_section; break; | |
1396 | case O_register: *segP = reg_section; break; | |
1397 | default: break; | |
1398 | } | |
1399 | } | |
1400 | ||
1401 | return 1; | |
1402 | } | |
1403 | ||
252b5132 RH |
1404 | /* Dollar labels look like a number followed by a dollar sign. Eg, "42$". |
1405 | They are *really* local. That is, they go out of scope whenever we see a | |
1406 | label that isn't local. Also, like fb labels, there can be multiple | |
1407 | instances of a dollar label. Therefor, we name encode each instance with | |
1408 | the instance number, keep a list of defined symbols separate from the real | |
1409 | symbol table, and we treat these buggers as a sparse array. */ | |
1410 | ||
1411 | static long *dollar_labels; | |
1412 | static long *dollar_label_instances; | |
1413 | static char *dollar_label_defines; | |
1414 | static unsigned long dollar_label_count; | |
1415 | static unsigned long dollar_label_max; | |
1416 | ||
7c743825 | 1417 | int |
74937d39 | 1418 | dollar_label_defined (long label) |
252b5132 RH |
1419 | { |
1420 | long *i; | |
1421 | ||
1422 | know ((dollar_labels != NULL) || (dollar_label_count == 0)); | |
1423 | ||
1424 | for (i = dollar_labels; i < dollar_labels + dollar_label_count; ++i) | |
1425 | if (*i == label) | |
1426 | return dollar_label_defines[i - dollar_labels]; | |
1427 | ||
7c743825 | 1428 | /* If we get here, label isn't defined. */ |
252b5132 | 1429 | return 0; |
7c743825 | 1430 | } |
252b5132 RH |
1431 | |
1432 | static long | |
74937d39 | 1433 | dollar_label_instance (long label) |
252b5132 RH |
1434 | { |
1435 | long *i; | |
1436 | ||
1437 | know ((dollar_labels != NULL) || (dollar_label_count == 0)); | |
1438 | ||
1439 | for (i = dollar_labels; i < dollar_labels + dollar_label_count; ++i) | |
1440 | if (*i == label) | |
1441 | return (dollar_label_instances[i - dollar_labels]); | |
1442 | ||
7c743825 KH |
1443 | /* If we get here, we haven't seen the label before. |
1444 | Therefore its instance count is zero. */ | |
252b5132 RH |
1445 | return 0; |
1446 | } | |
1447 | ||
7c743825 | 1448 | void |
74937d39 | 1449 | dollar_label_clear (void) |
252b5132 RH |
1450 | { |
1451 | memset (dollar_label_defines, '\0', (unsigned int) dollar_label_count); | |
1452 | } | |
1453 | ||
1454 | #define DOLLAR_LABEL_BUMP_BY 10 | |
1455 | ||
7c743825 | 1456 | void |
74937d39 | 1457 | define_dollar_label (long label) |
252b5132 RH |
1458 | { |
1459 | long *i; | |
1460 | ||
1461 | for (i = dollar_labels; i < dollar_labels + dollar_label_count; ++i) | |
1462 | if (*i == label) | |
1463 | { | |
1464 | ++dollar_label_instances[i - dollar_labels]; | |
1465 | dollar_label_defines[i - dollar_labels] = 1; | |
1466 | return; | |
1467 | } | |
1468 | ||
7c743825 | 1469 | /* If we get to here, we don't have label listed yet. */ |
252b5132 RH |
1470 | |
1471 | if (dollar_labels == NULL) | |
1472 | { | |
1473 | dollar_labels = (long *) xmalloc (DOLLAR_LABEL_BUMP_BY * sizeof (long)); | |
1474 | dollar_label_instances = (long *) xmalloc (DOLLAR_LABEL_BUMP_BY * sizeof (long)); | |
1475 | dollar_label_defines = xmalloc (DOLLAR_LABEL_BUMP_BY); | |
1476 | dollar_label_max = DOLLAR_LABEL_BUMP_BY; | |
1477 | dollar_label_count = 0; | |
1478 | } | |
1479 | else if (dollar_label_count == dollar_label_max) | |
1480 | { | |
1481 | dollar_label_max += DOLLAR_LABEL_BUMP_BY; | |
1482 | dollar_labels = (long *) xrealloc ((char *) dollar_labels, | |
1483 | dollar_label_max * sizeof (long)); | |
1484 | dollar_label_instances = (long *) xrealloc ((char *) dollar_label_instances, | |
1485 | dollar_label_max * sizeof (long)); | |
1486 | dollar_label_defines = xrealloc (dollar_label_defines, dollar_label_max); | |
7c743825 | 1487 | } /* if we needed to grow */ |
252b5132 RH |
1488 | |
1489 | dollar_labels[dollar_label_count] = label; | |
1490 | dollar_label_instances[dollar_label_count] = 1; | |
1491 | dollar_label_defines[dollar_label_count] = 1; | |
1492 | ++dollar_label_count; | |
1493 | } | |
1494 | ||
7c743825 KH |
1495 | /* Caller must copy returned name: we re-use the area for the next name. |
1496 | ||
1497 | The mth occurence of label n: is turned into the symbol "Ln^Am" | |
1498 | where n is the label number and m is the instance number. "L" makes | |
1499 | it a label discarded unless debugging and "^A"('\1') ensures no | |
1500 | ordinary symbol SHOULD get the same name as a local label | |
1501 | symbol. The first "4:" is "L4^A1" - the m numbers begin at 1. | |
1502 | ||
1503 | fb labels get the same treatment, except that ^B is used in place | |
1504 | of ^A. */ | |
1505 | ||
1506 | char * /* Return local label name. */ | |
74937d39 KH |
1507 | dollar_label_name (register long n, /* we just saw "n$:" : n a number. */ |
1508 | register int augend /* 0 for current instance, 1 for new instance. */) | |
252b5132 RH |
1509 | { |
1510 | long i; | |
7c743825 | 1511 | /* Returned to caller, then copied. Used for created names ("4f"). */ |
252b5132 RH |
1512 | static char symbol_name_build[24]; |
1513 | register char *p; | |
1514 | register char *q; | |
7c743825 | 1515 | char symbol_name_temporary[20]; /* Build up a number, BACKWARDS. */ |
252b5132 RH |
1516 | |
1517 | know (n >= 0); | |
1518 | know (augend == 0 || augend == 1); | |
1519 | p = symbol_name_build; | |
f84dd1f0 NC |
1520 | #ifdef LOCAL_LABEL_PREFIX |
1521 | *p++ = LOCAL_LABEL_PREFIX; | |
1522 | #endif | |
252b5132 RH |
1523 | *p++ = 'L'; |
1524 | ||
7c743825 KH |
1525 | /* Next code just does sprintf( {}, "%d", n); */ |
1526 | /* Label number. */ | |
252b5132 RH |
1527 | q = symbol_name_temporary; |
1528 | for (*q++ = 0, i = n; i; ++q) | |
1529 | { | |
1530 | *q = i % 10 + '0'; | |
1531 | i /= 10; | |
1532 | } | |
1533 | while ((*p = *--q) != '\0') | |
1534 | ++p; | |
1535 | ||
aa257fcd | 1536 | *p++ = DOLLAR_LABEL_CHAR; /* ^A */ |
252b5132 | 1537 | |
7c743825 | 1538 | /* Instance number. */ |
252b5132 RH |
1539 | q = symbol_name_temporary; |
1540 | for (*q++ = 0, i = dollar_label_instance (n) + augend; i; ++q) | |
1541 | { | |
1542 | *q = i % 10 + '0'; | |
1543 | i /= 10; | |
1544 | } | |
1545 | while ((*p++ = *--q) != '\0');; | |
1546 | ||
7c743825 | 1547 | /* The label, as a '\0' ended string, starts at symbol_name_build. */ |
252b5132 RH |
1548 | return symbol_name_build; |
1549 | } | |
1550 | ||
47eebc20 | 1551 | /* Somebody else's idea of local labels. They are made by "n:" where n |
7c743825 KH |
1552 | is any decimal digit. Refer to them with |
1553 | "nb" for previous (backward) n: | |
1554 | or "nf" for next (forward) n:. | |
1555 | ||
1556 | We do a little better and let n be any number, not just a single digit, but | |
1557 | since the other guy's assembler only does ten, we treat the first ten | |
1558 | specially. | |
1559 | ||
1560 | Like someone else's assembler, we have one set of local label counters for | |
1561 | entire assembly, not one set per (sub)segment like in most assemblers. This | |
1562 | implies that one can refer to a label in another segment, and indeed some | |
1563 | crufty compilers have done just that. | |
1564 | ||
1565 | Since there could be a LOT of these things, treat them as a sparse | |
1566 | array. */ | |
252b5132 RH |
1567 | |
1568 | #define FB_LABEL_SPECIAL (10) | |
1569 | ||
1570 | static long fb_low_counter[FB_LABEL_SPECIAL]; | |
1571 | static long *fb_labels; | |
1572 | static long *fb_label_instances; | |
1573 | static long fb_label_count; | |
1574 | static long fb_label_max; | |
1575 | ||
7c743825 | 1576 | /* This must be more than FB_LABEL_SPECIAL. */ |
252b5132 RH |
1577 | #define FB_LABEL_BUMP_BY (FB_LABEL_SPECIAL + 6) |
1578 | ||
7c743825 | 1579 | static void |
74937d39 | 1580 | fb_label_init (void) |
252b5132 RH |
1581 | { |
1582 | memset ((void *) fb_low_counter, '\0', sizeof (fb_low_counter)); | |
7c743825 | 1583 | } |
252b5132 | 1584 | |
7c743825 KH |
1585 | /* Add one to the instance number of this fb label. */ |
1586 | ||
1587 | void | |
74937d39 | 1588 | fb_label_instance_inc (long label) |
252b5132 RH |
1589 | { |
1590 | long *i; | |
1591 | ||
1592 | if (label < FB_LABEL_SPECIAL) | |
1593 | { | |
1594 | ++fb_low_counter[label]; | |
1595 | return; | |
1596 | } | |
1597 | ||
1598 | if (fb_labels != NULL) | |
1599 | { | |
1600 | for (i = fb_labels + FB_LABEL_SPECIAL; | |
1601 | i < fb_labels + fb_label_count; ++i) | |
1602 | { | |
1603 | if (*i == label) | |
1604 | { | |
1605 | ++fb_label_instances[i - fb_labels]; | |
1606 | return; | |
7c743825 KH |
1607 | } /* if we find it */ |
1608 | } /* for each existing label */ | |
252b5132 RH |
1609 | } |
1610 | ||
7c743825 | 1611 | /* If we get to here, we don't have label listed yet. */ |
252b5132 RH |
1612 | |
1613 | if (fb_labels == NULL) | |
1614 | { | |
1615 | fb_labels = (long *) xmalloc (FB_LABEL_BUMP_BY * sizeof (long)); | |
1616 | fb_label_instances = (long *) xmalloc (FB_LABEL_BUMP_BY * sizeof (long)); | |
1617 | fb_label_max = FB_LABEL_BUMP_BY; | |
1618 | fb_label_count = FB_LABEL_SPECIAL; | |
1619 | ||
1620 | } | |
1621 | else if (fb_label_count == fb_label_max) | |
1622 | { | |
1623 | fb_label_max += FB_LABEL_BUMP_BY; | |
1624 | fb_labels = (long *) xrealloc ((char *) fb_labels, | |
1625 | fb_label_max * sizeof (long)); | |
1626 | fb_label_instances = (long *) xrealloc ((char *) fb_label_instances, | |
1627 | fb_label_max * sizeof (long)); | |
7c743825 | 1628 | } /* if we needed to grow */ |
252b5132 RH |
1629 | |
1630 | fb_labels[fb_label_count] = label; | |
1631 | fb_label_instances[fb_label_count] = 1; | |
1632 | ++fb_label_count; | |
1633 | } | |
1634 | ||
7c743825 | 1635 | static long |
74937d39 | 1636 | fb_label_instance (long label) |
252b5132 RH |
1637 | { |
1638 | long *i; | |
1639 | ||
1640 | if (label < FB_LABEL_SPECIAL) | |
1641 | { | |
1642 | return (fb_low_counter[label]); | |
1643 | } | |
1644 | ||
1645 | if (fb_labels != NULL) | |
1646 | { | |
1647 | for (i = fb_labels + FB_LABEL_SPECIAL; | |
1648 | i < fb_labels + fb_label_count; ++i) | |
1649 | { | |
1650 | if (*i == label) | |
1651 | { | |
1652 | return (fb_label_instances[i - fb_labels]); | |
7c743825 KH |
1653 | } /* if we find it */ |
1654 | } /* for each existing label */ | |
252b5132 RH |
1655 | } |
1656 | ||
1657 | /* We didn't find the label, so this must be a reference to the | |
1658 | first instance. */ | |
1659 | return 0; | |
1660 | } | |
1661 | ||
7c743825 KH |
1662 | /* Caller must copy returned name: we re-use the area for the next name. |
1663 | ||
1664 | The mth occurence of label n: is turned into the symbol "Ln^Bm" | |
1665 | where n is the label number and m is the instance number. "L" makes | |
1666 | it a label discarded unless debugging and "^B"('\2') ensures no | |
1667 | ordinary symbol SHOULD get the same name as a local label | |
1668 | symbol. The first "4:" is "L4^B1" - the m numbers begin at 1. | |
1669 | ||
1670 | dollar labels get the same treatment, except that ^A is used in | |
1671 | place of ^B. */ | |
1672 | ||
1673 | char * /* Return local label name. */ | |
74937d39 KH |
1674 | fb_label_name (long n, /* We just saw "n:", "nf" or "nb" : n a number. */ |
1675 | long augend /* 0 for nb, 1 for n:, nf. */) | |
252b5132 RH |
1676 | { |
1677 | long i; | |
7c743825 | 1678 | /* Returned to caller, then copied. Used for created names ("4f"). */ |
252b5132 RH |
1679 | static char symbol_name_build[24]; |
1680 | register char *p; | |
1681 | register char *q; | |
7c743825 | 1682 | char symbol_name_temporary[20]; /* Build up a number, BACKWARDS. */ |
252b5132 RH |
1683 | |
1684 | know (n >= 0); | |
a76903bf | 1685 | #ifdef TC_MMIX |
71ba24a1 | 1686 | know ((unsigned long) augend <= 2 /* See mmix_fb_label. */); |
a76903bf | 1687 | #else |
71ba24a1 | 1688 | know ((unsigned long) augend <= 1); |
a76903bf | 1689 | #endif |
252b5132 | 1690 | p = symbol_name_build; |
aa257fcd NC |
1691 | #ifdef LOCAL_LABEL_PREFIX |
1692 | *p++ = LOCAL_LABEL_PREFIX; | |
1693 | #endif | |
252b5132 RH |
1694 | *p++ = 'L'; |
1695 | ||
7c743825 KH |
1696 | /* Next code just does sprintf( {}, "%d", n); */ |
1697 | /* Label number. */ | |
252b5132 RH |
1698 | q = symbol_name_temporary; |
1699 | for (*q++ = 0, i = n; i; ++q) | |
1700 | { | |
1701 | *q = i % 10 + '0'; | |
1702 | i /= 10; | |
1703 | } | |
1704 | while ((*p = *--q) != '\0') | |
1705 | ++p; | |
1706 | ||
aa257fcd | 1707 | *p++ = LOCAL_LABEL_CHAR; /* ^B */ |
252b5132 | 1708 | |
7c743825 | 1709 | /* Instance number. */ |
252b5132 RH |
1710 | q = symbol_name_temporary; |
1711 | for (*q++ = 0, i = fb_label_instance (n) + augend; i; ++q) | |
1712 | { | |
1713 | *q = i % 10 + '0'; | |
1714 | i /= 10; | |
1715 | } | |
1716 | while ((*p++ = *--q) != '\0');; | |
1717 | ||
7c743825 | 1718 | /* The label, as a '\0' ended string, starts at symbol_name_build. */ |
252b5132 | 1719 | return (symbol_name_build); |
7c743825 | 1720 | } |
252b5132 | 1721 | |
7c743825 KH |
1722 | /* Decode name that may have been generated by foo_label_name() above. |
1723 | If the name wasn't generated by foo_label_name(), then return it | |
1724 | unaltered. This is used for error messages. */ | |
252b5132 RH |
1725 | |
1726 | char * | |
74937d39 | 1727 | decode_local_label_name (char *s) |
252b5132 RH |
1728 | { |
1729 | char *p; | |
1730 | char *symbol_decode; | |
1731 | int label_number; | |
1732 | int instance_number; | |
1733 | char *type; | |
d95767bf | 1734 | const char *message_format; |
aa257fcd | 1735 | int index = 0; |
43ad3147 | 1736 | |
aa257fcd NC |
1737 | #ifdef LOCAL_LABEL_PREFIX |
1738 | if (s[index] == LOCAL_LABEL_PREFIX) | |
1739 | ++index; | |
1740 | #endif | |
43ad3147 | 1741 | |
aa257fcd | 1742 | if (s[index] != 'L') |
252b5132 RH |
1743 | return s; |
1744 | ||
3882b010 | 1745 | for (label_number = 0, p = s + index + 1; ISDIGIT (*p); ++p) |
252b5132 RH |
1746 | label_number = (10 * label_number) + *p - '0'; |
1747 | ||
aa257fcd | 1748 | if (*p == DOLLAR_LABEL_CHAR) |
252b5132 | 1749 | type = "dollar"; |
aa257fcd | 1750 | else if (*p == LOCAL_LABEL_CHAR) |
252b5132 RH |
1751 | type = "fb"; |
1752 | else | |
1753 | return s; | |
1754 | ||
3882b010 | 1755 | for (instance_number = 0, p++; ISDIGIT (*p); ++p) |
252b5132 RH |
1756 | instance_number = (10 * instance_number) + *p - '0'; |
1757 | ||
d95767bf | 1758 | message_format = _("\"%d\" (instance number %d of a %s label)"); |
252b5132 RH |
1759 | symbol_decode = obstack_alloc (¬es, strlen (message_format) + 30); |
1760 | sprintf (symbol_decode, message_format, label_number, instance_number, type); | |
1761 | ||
1762 | return symbol_decode; | |
1763 | } | |
1764 | ||
1765 | /* Get the value of a symbol. */ | |
1766 | ||
1767 | valueT | |
74937d39 | 1768 | S_GET_VALUE (symbolS *s) |
252b5132 | 1769 | { |
49309057 | 1770 | if (LOCAL_SYMBOL_CHECK (s)) |
ac62c346 | 1771 | return resolve_symbol_value (s); |
49309057 | 1772 | |
ac62c346 | 1773 | if (!s->sy_resolved) |
e46d99eb | 1774 | { |
6386f3a7 AM |
1775 | valueT val = resolve_symbol_value (s); |
1776 | if (!finalize_syms) | |
e46d99eb AM |
1777 | return val; |
1778 | } | |
06e77878 AO |
1779 | if (S_IS_WEAKREFR (s)) |
1780 | return S_GET_VALUE (s->sy_value.X_add_symbol); | |
1781 | ||
252b5132 RH |
1782 | if (s->sy_value.X_op != O_constant) |
1783 | { | |
1784 | static symbolS *recur; | |
1785 | ||
1786 | /* FIXME: In non BFD assemblers, S_IS_DEFINED and S_IS_COMMON | |
1d3b2b27 AM |
1787 | may call S_GET_VALUE. We use a static symbol to avoid the |
1788 | immediate recursion. */ | |
252b5132 RH |
1789 | if (recur == s) |
1790 | return (valueT) s->sy_value.X_add_number; | |
1791 | recur = s; | |
1792 | if (! s->sy_resolved | |
1793 | || s->sy_value.X_op != O_symbol | |
1794 | || (S_IS_DEFINED (s) && ! S_IS_COMMON (s))) | |
0e389e77 | 1795 | as_bad (_("attempt to get value of unresolved symbol `%s'"), |
252b5132 RH |
1796 | S_GET_NAME (s)); |
1797 | recur = NULL; | |
1798 | } | |
1799 | return (valueT) s->sy_value.X_add_number; | |
1800 | } | |
1801 | ||
1802 | /* Set the value of a symbol. */ | |
1803 | ||
1804 | void | |
74937d39 | 1805 | S_SET_VALUE (symbolS *s, valueT val) |
252b5132 | 1806 | { |
49309057 ILT |
1807 | if (LOCAL_SYMBOL_CHECK (s)) |
1808 | { | |
bd780143 | 1809 | ((struct local_symbol *) s)->lsy_value = val; |
49309057 ILT |
1810 | return; |
1811 | } | |
1812 | ||
252b5132 RH |
1813 | s->sy_value.X_op = O_constant; |
1814 | s->sy_value.X_add_number = (offsetT) val; | |
1815 | s->sy_value.X_unsigned = 0; | |
06e77878 | 1816 | S_CLEAR_WEAKREFR (s); |
252b5132 RH |
1817 | } |
1818 | ||
1819 | void | |
74937d39 | 1820 | copy_symbol_attributes (symbolS *dest, symbolS *src) |
252b5132 | 1821 | { |
49309057 | 1822 | if (LOCAL_SYMBOL_CHECK (dest)) |
7f2f689c | 1823 | dest = local_symbol_convert ((struct local_symbol *) dest); |
49309057 | 1824 | if (LOCAL_SYMBOL_CHECK (src)) |
7f2f689c | 1825 | src = local_symbol_convert ((struct local_symbol *) src); |
49309057 | 1826 | |
252b5132 RH |
1827 | /* In an expression, transfer the settings of these flags. |
1828 | The user can override later, of course. */ | |
1829 | #define COPIED_SYMFLAGS (BSF_FUNCTION | BSF_OBJECT) | |
1830 | dest->bsym->flags |= src->bsym->flags & COPIED_SYMFLAGS; | |
252b5132 RH |
1831 | |
1832 | #ifdef OBJ_COPY_SYMBOL_ATTRIBUTES | |
1833 | OBJ_COPY_SYMBOL_ATTRIBUTES (dest, src); | |
1834 | #endif | |
1835 | } | |
1836 | ||
252b5132 | 1837 | int |
74937d39 | 1838 | S_IS_FUNCTION (symbolS *s) |
252b5132 | 1839 | { |
49309057 ILT |
1840 | flagword flags; |
1841 | ||
1842 | if (LOCAL_SYMBOL_CHECK (s)) | |
1843 | return 0; | |
1844 | ||
1845 | flags = s->bsym->flags; | |
252b5132 RH |
1846 | |
1847 | return (flags & BSF_FUNCTION) != 0; | |
1848 | } | |
1849 | ||
1850 | int | |
74937d39 | 1851 | S_IS_EXTERNAL (symbolS *s) |
252b5132 | 1852 | { |
49309057 ILT |
1853 | flagword flags; |
1854 | ||
1855 | if (LOCAL_SYMBOL_CHECK (s)) | |
1856 | return 0; | |
1857 | ||
1858 | flags = s->bsym->flags; | |
252b5132 | 1859 | |
7c743825 | 1860 | /* Sanity check. */ |
252b5132 RH |
1861 | if ((flags & BSF_LOCAL) && (flags & BSF_GLOBAL)) |
1862 | abort (); | |
1863 | ||
1864 | return (flags & BSF_GLOBAL) != 0; | |
1865 | } | |
1866 | ||
1867 | int | |
74937d39 | 1868 | S_IS_WEAK (symbolS *s) |
252b5132 | 1869 | { |
49309057 ILT |
1870 | if (LOCAL_SYMBOL_CHECK (s)) |
1871 | return 0; | |
06e77878 AO |
1872 | /* Conceptually, a weakrefr is weak if the referenced symbol is. We |
1873 | could probably handle a WEAKREFR as always weak though. E.g., if | |
1874 | the referenced symbol has lost its weak status, there's no reason | |
1875 | to keep handling the weakrefr as if it was weak. */ | |
1876 | if (S_IS_WEAKREFR (s)) | |
1877 | return S_IS_WEAK (s->sy_value.X_add_symbol); | |
252b5132 RH |
1878 | return (s->bsym->flags & BSF_WEAK) != 0; |
1879 | } | |
1880 | ||
06e77878 AO |
1881 | int |
1882 | S_IS_WEAKREFR (symbolS *s) | |
1883 | { | |
1884 | if (LOCAL_SYMBOL_CHECK (s)) | |
1885 | return 0; | |
1886 | return s->sy_weakrefr != 0; | |
1887 | } | |
1888 | ||
1889 | int | |
1890 | S_IS_WEAKREFD (symbolS *s) | |
1891 | { | |
1892 | if (LOCAL_SYMBOL_CHECK (s)) | |
1893 | return 0; | |
1894 | return s->sy_weakrefd != 0; | |
1895 | } | |
1896 | ||
252b5132 | 1897 | int |
74937d39 | 1898 | S_IS_COMMON (symbolS *s) |
252b5132 | 1899 | { |
49309057 ILT |
1900 | if (LOCAL_SYMBOL_CHECK (s)) |
1901 | return 0; | |
252b5132 RH |
1902 | return bfd_is_com_section (s->bsym->section); |
1903 | } | |
1904 | ||
1905 | int | |
74937d39 | 1906 | S_IS_DEFINED (symbolS *s) |
252b5132 | 1907 | { |
49309057 ILT |
1908 | if (LOCAL_SYMBOL_CHECK (s)) |
1909 | return ((struct local_symbol *) s)->lsy_section != undefined_section; | |
252b5132 RH |
1910 | return s->bsym->section != undefined_section; |
1911 | } | |
1912 | ||
a161fe53 AM |
1913 | |
1914 | #ifndef EXTERN_FORCE_RELOC | |
1915 | #define EXTERN_FORCE_RELOC IS_ELF | |
1916 | #endif | |
1917 | ||
1918 | /* Return true for symbols that should not be reduced to section | |
1919 | symbols or eliminated from expressions, because they may be | |
1920 | overridden by the linker. */ | |
1921 | int | |
74937d39 | 1922 | S_FORCE_RELOC (symbolS *s, int strict) |
a161fe53 AM |
1923 | { |
1924 | if (LOCAL_SYMBOL_CHECK (s)) | |
1925 | return ((struct local_symbol *) s)->lsy_section == undefined_section; | |
1926 | ||
ae6063d4 AM |
1927 | return ((strict |
1928 | && ((s->bsym->flags & BSF_WEAK) != 0 | |
1929 | || (EXTERN_FORCE_RELOC | |
1930 | && (s->bsym->flags & BSF_GLOBAL) != 0))) | |
a161fe53 AM |
1931 | || s->bsym->section == undefined_section |
1932 | || bfd_is_com_section (s->bsym->section)); | |
1933 | } | |
1934 | ||
252b5132 | 1935 | int |
74937d39 | 1936 | S_IS_DEBUG (symbolS *s) |
252b5132 | 1937 | { |
49309057 ILT |
1938 | if (LOCAL_SYMBOL_CHECK (s)) |
1939 | return 0; | |
252b5132 RH |
1940 | if (s->bsym->flags & BSF_DEBUGGING) |
1941 | return 1; | |
1942 | return 0; | |
1943 | } | |
1944 | ||
1945 | int | |
74937d39 | 1946 | S_IS_LOCAL (symbolS *s) |
252b5132 | 1947 | { |
49309057 | 1948 | flagword flags; |
252b5132 RH |
1949 | const char *name; |
1950 | ||
49309057 ILT |
1951 | if (LOCAL_SYMBOL_CHECK (s)) |
1952 | return 1; | |
1953 | ||
1954 | flags = s->bsym->flags; | |
1955 | ||
7c743825 | 1956 | /* Sanity check. */ |
252b5132 RH |
1957 | if ((flags & BSF_LOCAL) && (flags & BSF_GLOBAL)) |
1958 | abort (); | |
1959 | ||
1960 | if (bfd_get_section (s->bsym) == reg_section) | |
1961 | return 1; | |
1962 | ||
1963 | if (flag_strip_local_absolute | |
bb82af9f NC |
1964 | /* Keep BSF_FILE symbols in order to allow debuggers to identify |
1965 | the source file even when the object file is stripped. */ | |
1966 | && (flags & (BSF_GLOBAL | BSF_FILE)) == 0 | |
252b5132 RH |
1967 | && bfd_get_section (s->bsym) == absolute_section) |
1968 | return 1; | |
1969 | ||
1970 | name = S_GET_NAME (s); | |
1971 | return (name != NULL | |
1972 | && ! S_IS_DEBUG (s) | |
aa257fcd NC |
1973 | && (strchr (name, DOLLAR_LABEL_CHAR) |
1974 | || strchr (name, LOCAL_LABEL_CHAR) | |
252b5132 RH |
1975 | || (! flag_keep_locals |
1976 | && (bfd_is_local_label (stdoutput, s->bsym) | |
1977 | || (flag_mri | |
1978 | && name[0] == '?' | |
1979 | && name[1] == '?'))))); | |
1980 | } | |
1981 | ||
252b5132 | 1982 | int |
74937d39 | 1983 | S_IS_STABD (symbolS *s) |
252b5132 RH |
1984 | { |
1985 | return S_GET_NAME (s) == 0; | |
1986 | } | |
1987 | ||
9497f5ac NC |
1988 | int |
1989 | S_IS_VOLATILE (const symbolS *s) | |
1990 | { | |
1991 | if (LOCAL_SYMBOL_CHECK (s)) | |
1992 | return 0; | |
1993 | return s->sy_volatile; | |
1994 | } | |
1995 | ||
1996 | int | |
1997 | S_IS_FORWARD_REF (const symbolS *s) | |
1998 | { | |
1999 | if (LOCAL_SYMBOL_CHECK (s)) | |
2000 | return 0; | |
2001 | return s->sy_forward_ref; | |
2002 | } | |
2003 | ||
9758f3fc | 2004 | const char * |
74937d39 | 2005 | S_GET_NAME (symbolS *s) |
252b5132 | 2006 | { |
49309057 ILT |
2007 | if (LOCAL_SYMBOL_CHECK (s)) |
2008 | return ((struct local_symbol *) s)->lsy_name; | |
252b5132 RH |
2009 | return s->bsym->name; |
2010 | } | |
2011 | ||
2012 | segT | |
74937d39 | 2013 | S_GET_SEGMENT (symbolS *s) |
252b5132 | 2014 | { |
49309057 ILT |
2015 | if (LOCAL_SYMBOL_CHECK (s)) |
2016 | return ((struct local_symbol *) s)->lsy_section; | |
252b5132 RH |
2017 | return s->bsym->section; |
2018 | } | |
2019 | ||
2020 | void | |
74937d39 | 2021 | S_SET_SEGMENT (symbolS *s, segT seg) |
252b5132 RH |
2022 | { |
2023 | /* Don't reassign section symbols. The direct reason is to prevent seg | |
2024 | faults assigning back to const global symbols such as *ABS*, but it | |
2025 | shouldn't happen anyway. */ | |
2026 | ||
49309057 ILT |
2027 | if (LOCAL_SYMBOL_CHECK (s)) |
2028 | { | |
2029 | if (seg == reg_section) | |
2030 | s = local_symbol_convert ((struct local_symbol *) s); | |
2031 | else | |
2032 | { | |
2033 | ((struct local_symbol *) s)->lsy_section = seg; | |
2034 | return; | |
2035 | } | |
2036 | } | |
2037 | ||
252b5132 RH |
2038 | if (s->bsym->flags & BSF_SECTION_SYM) |
2039 | { | |
2040 | if (s->bsym->section != seg) | |
7c743825 | 2041 | abort (); |
252b5132 RH |
2042 | } |
2043 | else | |
2044 | s->bsym->section = seg; | |
2045 | } | |
2046 | ||
2047 | void | |
74937d39 | 2048 | S_SET_EXTERNAL (symbolS *s) |
252b5132 | 2049 | { |
49309057 ILT |
2050 | if (LOCAL_SYMBOL_CHECK (s)) |
2051 | s = local_symbol_convert ((struct local_symbol *) s); | |
252b5132 RH |
2052 | if ((s->bsym->flags & BSF_WEAK) != 0) |
2053 | { | |
2054 | /* Let .weak override .global. */ | |
2055 | return; | |
2056 | } | |
4d7c34bf NC |
2057 | if (s->bsym->flags & BSF_SECTION_SYM) |
2058 | { | |
2059 | char * file; | |
2060 | unsigned int line; | |
d1a6c242 | 2061 | |
4d7c34bf NC |
2062 | /* Do not reassign section symbols. */ |
2063 | as_where (& file, & line); | |
2064 | as_warn_where (file, line, | |
0e389e77 | 2065 | _("section symbols are already global")); |
4d7c34bf NC |
2066 | return; |
2067 | } | |
252b5132 | 2068 | s->bsym->flags |= BSF_GLOBAL; |
7c743825 | 2069 | s->bsym->flags &= ~(BSF_LOCAL | BSF_WEAK); |
977cdf5a NC |
2070 | |
2071 | #ifdef USE_UNIQUE | |
2072 | if (! an_external_name && S_GET_NAME(s)[0] != '.') | |
2073 | an_external_name = S_GET_NAME (s); | |
2074 | #endif | |
252b5132 RH |
2075 | } |
2076 | ||
2077 | void | |
74937d39 | 2078 | S_CLEAR_EXTERNAL (symbolS *s) |
252b5132 | 2079 | { |
49309057 ILT |
2080 | if (LOCAL_SYMBOL_CHECK (s)) |
2081 | return; | |
252b5132 RH |
2082 | if ((s->bsym->flags & BSF_WEAK) != 0) |
2083 | { | |
2084 | /* Let .weak override. */ | |
2085 | return; | |
2086 | } | |
2087 | s->bsym->flags |= BSF_LOCAL; | |
7c743825 | 2088 | s->bsym->flags &= ~(BSF_GLOBAL | BSF_WEAK); |
252b5132 RH |
2089 | } |
2090 | ||
2091 | void | |
74937d39 | 2092 | S_SET_WEAK (symbolS *s) |
252b5132 | 2093 | { |
49309057 ILT |
2094 | if (LOCAL_SYMBOL_CHECK (s)) |
2095 | s = local_symbol_convert ((struct local_symbol *) s); | |
06e77878 AO |
2096 | #ifdef obj_set_weak_hook |
2097 | obj_set_weak_hook (s); | |
2098 | #endif | |
252b5132 | 2099 | s->bsym->flags |= BSF_WEAK; |
7c743825 | 2100 | s->bsym->flags &= ~(BSF_GLOBAL | BSF_LOCAL); |
252b5132 RH |
2101 | } |
2102 | ||
06e77878 AO |
2103 | void |
2104 | S_SET_WEAKREFR (symbolS *s) | |
2105 | { | |
2106 | if (LOCAL_SYMBOL_CHECK (s)) | |
2107 | s = local_symbol_convert ((struct local_symbol *) s); | |
2108 | s->sy_weakrefr = 1; | |
2109 | /* If the alias was already used, make sure we mark the target as | |
2110 | used as well, otherwise it might be dropped from the symbol | |
2111 | table. This may have unintended side effects if the alias is | |
2112 | later redirected to another symbol, such as keeping the unused | |
2113 | previous target in the symbol table. Since it will be weak, it's | |
2114 | not a big deal. */ | |
2115 | if (s->sy_used) | |
2116 | symbol_mark_used (s->sy_value.X_add_symbol); | |
2117 | } | |
2118 | ||
2119 | void | |
2120 | S_CLEAR_WEAKREFR (symbolS *s) | |
2121 | { | |
2122 | if (LOCAL_SYMBOL_CHECK (s)) | |
2123 | return; | |
2124 | s->sy_weakrefr = 0; | |
2125 | } | |
2126 | ||
2127 | void | |
2128 | S_SET_WEAKREFD (symbolS *s) | |
2129 | { | |
2130 | if (LOCAL_SYMBOL_CHECK (s)) | |
2131 | s = local_symbol_convert ((struct local_symbol *) s); | |
2132 | s->sy_weakrefd = 1; | |
2133 | S_SET_WEAK (s); | |
2134 | } | |
2135 | ||
2136 | void | |
2137 | S_CLEAR_WEAKREFD (symbolS *s) | |
2138 | { | |
2139 | if (LOCAL_SYMBOL_CHECK (s)) | |
2140 | return; | |
2141 | if (s->sy_weakrefd) | |
2142 | { | |
2143 | s->sy_weakrefd = 0; | |
2144 | /* If a weakref target symbol is weak, then it was never | |
2145 | referenced directly before, not even in a .global directive, | |
2146 | so decay it to local. If it remains undefined, it will be | |
2147 | later turned into a global, like any other undefined | |
2148 | symbol. */ | |
2149 | if (s->bsym->flags & BSF_WEAK) | |
2150 | { | |
2151 | #ifdef obj_clear_weak_hook | |
2152 | obj_clear_weak_hook (s); | |
2153 | #endif | |
2154 | s->bsym->flags &= ~BSF_WEAK; | |
2155 | s->bsym->flags |= BSF_LOCAL; | |
2156 | } | |
2157 | } | |
2158 | } | |
2159 | ||
00f7efb6 | 2160 | void |
74937d39 | 2161 | S_SET_THREAD_LOCAL (symbolS *s) |
00f7efb6 JJ |
2162 | { |
2163 | if (LOCAL_SYMBOL_CHECK (s)) | |
2164 | s = local_symbol_convert ((struct local_symbol *) s); | |
2165 | if (bfd_is_com_section (s->bsym->section) | |
2166 | && (s->bsym->flags & BSF_THREAD_LOCAL) != 0) | |
2167 | return; | |
2168 | s->bsym->flags |= BSF_THREAD_LOCAL; | |
2169 | if ((s->bsym->flags & BSF_FUNCTION) != 0) | |
2170 | as_bad (_("Accessing function `%s' as thread-local object"), | |
2171 | S_GET_NAME (s)); | |
2172 | else if (! bfd_is_und_section (s->bsym->section) | |
2173 | && (s->bsym->section->flags & SEC_THREAD_LOCAL) == 0) | |
2174 | as_bad (_("Accessing `%s' as thread-local object"), | |
2175 | S_GET_NAME (s)); | |
2176 | } | |
2177 | ||
252b5132 | 2178 | void |
977cdf5a | 2179 | S_SET_NAME (symbolS *s, const char *name) |
252b5132 | 2180 | { |
49309057 ILT |
2181 | if (LOCAL_SYMBOL_CHECK (s)) |
2182 | { | |
2183 | ((struct local_symbol *) s)->lsy_name = name; | |
2184 | return; | |
2185 | } | |
252b5132 RH |
2186 | s->bsym->name = name; |
2187 | } | |
49309057 | 2188 | |
9497f5ac NC |
2189 | void |
2190 | S_SET_VOLATILE (symbolS *s) | |
2191 | { | |
2192 | if (LOCAL_SYMBOL_CHECK (s)) | |
2193 | s = local_symbol_convert ((struct local_symbol *) s); | |
2194 | s->sy_volatile = 1; | |
2195 | } | |
2196 | ||
2197 | void | |
2198 | S_SET_FORWARD_REF (symbolS *s) | |
2199 | { | |
2200 | if (LOCAL_SYMBOL_CHECK (s)) | |
2201 | s = local_symbol_convert ((struct local_symbol *) s); | |
2202 | s->sy_forward_ref = 1; | |
2203 | } | |
2204 | ||
49309057 ILT |
2205 | /* Return the previous symbol in a chain. */ |
2206 | ||
2207 | symbolS * | |
74937d39 | 2208 | symbol_previous (symbolS *s) |
49309057 ILT |
2209 | { |
2210 | if (LOCAL_SYMBOL_CHECK (s)) | |
2211 | abort (); | |
2212 | return s->sy_previous; | |
2213 | } | |
2214 | ||
49309057 ILT |
2215 | /* Return the next symbol in a chain. */ |
2216 | ||
2217 | symbolS * | |
74937d39 | 2218 | symbol_next (symbolS *s) |
49309057 ILT |
2219 | { |
2220 | if (LOCAL_SYMBOL_CHECK (s)) | |
2221 | abort (); | |
2222 | return s->sy_next; | |
2223 | } | |
2224 | ||
2225 | /* Return a pointer to the value of a symbol as an expression. */ | |
2226 | ||
2227 | expressionS * | |
74937d39 | 2228 | symbol_get_value_expression (symbolS *s) |
49309057 ILT |
2229 | { |
2230 | if (LOCAL_SYMBOL_CHECK (s)) | |
2231 | s = local_symbol_convert ((struct local_symbol *) s); | |
2232 | return &s->sy_value; | |
2233 | } | |
2234 | ||
2235 | /* Set the value of a symbol to an expression. */ | |
2236 | ||
2237 | void | |
74937d39 | 2238 | symbol_set_value_expression (symbolS *s, const expressionS *exp) |
49309057 ILT |
2239 | { |
2240 | if (LOCAL_SYMBOL_CHECK (s)) | |
2241 | s = local_symbol_convert ((struct local_symbol *) s); | |
2242 | s->sy_value = *exp; | |
06e77878 | 2243 | S_CLEAR_WEAKREFR (s); |
49309057 ILT |
2244 | } |
2245 | ||
be95a9c1 AM |
2246 | /* Return a pointer to the X_add_number component of a symbol. */ |
2247 | ||
514d955d | 2248 | offsetT * |
be95a9c1 AM |
2249 | symbol_X_add_number (symbolS *s) |
2250 | { | |
be95a9c1 | 2251 | if (LOCAL_SYMBOL_CHECK (s)) |
514d955d | 2252 | return (offsetT *) &((struct local_symbol *) s)->lsy_value; |
be95a9c1 | 2253 | |
514d955d | 2254 | return &s->sy_value.X_add_number; |
be95a9c1 AM |
2255 | } |
2256 | ||
b7d6ed97 RH |
2257 | /* Set the value of SYM to the current position in the current segment. */ |
2258 | ||
2259 | void | |
74937d39 | 2260 | symbol_set_value_now (symbolS *sym) |
b7d6ed97 RH |
2261 | { |
2262 | S_SET_SEGMENT (sym, now_seg); | |
2263 | S_SET_VALUE (sym, frag_now_fix ()); | |
2264 | symbol_set_frag (sym, frag_now); | |
2265 | } | |
2266 | ||
49309057 ILT |
2267 | /* Set the frag of a symbol. */ |
2268 | ||
2269 | void | |
74937d39 | 2270 | symbol_set_frag (symbolS *s, fragS *f) |
49309057 ILT |
2271 | { |
2272 | if (LOCAL_SYMBOL_CHECK (s)) | |
2273 | { | |
2274 | local_symbol_set_frag ((struct local_symbol *) s, f); | |
2275 | return; | |
2276 | } | |
2277 | s->sy_frag = f; | |
06e77878 | 2278 | S_CLEAR_WEAKREFR (s); |
49309057 ILT |
2279 | } |
2280 | ||
2281 | /* Return the frag of a symbol. */ | |
2282 | ||
2283 | fragS * | |
74937d39 | 2284 | symbol_get_frag (symbolS *s) |
49309057 ILT |
2285 | { |
2286 | if (LOCAL_SYMBOL_CHECK (s)) | |
2287 | return local_symbol_get_frag ((struct local_symbol *) s); | |
2288 | return s->sy_frag; | |
2289 | } | |
2290 | ||
2291 | /* Mark a symbol as having been used. */ | |
2292 | ||
2293 | void | |
74937d39 | 2294 | symbol_mark_used (symbolS *s) |
49309057 ILT |
2295 | { |
2296 | if (LOCAL_SYMBOL_CHECK (s)) | |
2297 | return; | |
2298 | s->sy_used = 1; | |
06e77878 AO |
2299 | if (S_IS_WEAKREFR (s)) |
2300 | symbol_mark_used (s->sy_value.X_add_symbol); | |
49309057 ILT |
2301 | } |
2302 | ||
2303 | /* Clear the mark of whether a symbol has been used. */ | |
2304 | ||
2305 | void | |
74937d39 | 2306 | symbol_clear_used (symbolS *s) |
49309057 ILT |
2307 | { |
2308 | if (LOCAL_SYMBOL_CHECK (s)) | |
2309 | s = local_symbol_convert ((struct local_symbol *) s); | |
2310 | s->sy_used = 0; | |
2311 | } | |
2312 | ||
2313 | /* Return whether a symbol has been used. */ | |
2314 | ||
2315 | int | |
74937d39 | 2316 | symbol_used_p (symbolS *s) |
49309057 ILT |
2317 | { |
2318 | if (LOCAL_SYMBOL_CHECK (s)) | |
2319 | return 1; | |
2320 | return s->sy_used; | |
2321 | } | |
2322 | ||
2323 | /* Mark a symbol as having been used in a reloc. */ | |
2324 | ||
2325 | void | |
74937d39 | 2326 | symbol_mark_used_in_reloc (symbolS *s) |
49309057 ILT |
2327 | { |
2328 | if (LOCAL_SYMBOL_CHECK (s)) | |
2329 | s = local_symbol_convert ((struct local_symbol *) s); | |
2330 | s->sy_used_in_reloc = 1; | |
2331 | } | |
2332 | ||
2333 | /* Clear the mark of whether a symbol has been used in a reloc. */ | |
2334 | ||
2335 | void | |
74937d39 | 2336 | symbol_clear_used_in_reloc (symbolS *s) |
49309057 ILT |
2337 | { |
2338 | if (LOCAL_SYMBOL_CHECK (s)) | |
2339 | return; | |
2340 | s->sy_used_in_reloc = 0; | |
2341 | } | |
2342 | ||
2343 | /* Return whether a symbol has been used in a reloc. */ | |
2344 | ||
2345 | int | |
74937d39 | 2346 | symbol_used_in_reloc_p (symbolS *s) |
49309057 ILT |
2347 | { |
2348 | if (LOCAL_SYMBOL_CHECK (s)) | |
2349 | return 0; | |
2350 | return s->sy_used_in_reloc; | |
2351 | } | |
2352 | ||
2353 | /* Mark a symbol as an MRI common symbol. */ | |
2354 | ||
2355 | void | |
74937d39 | 2356 | symbol_mark_mri_common (symbolS *s) |
49309057 ILT |
2357 | { |
2358 | if (LOCAL_SYMBOL_CHECK (s)) | |
2359 | s = local_symbol_convert ((struct local_symbol *) s); | |
2360 | s->sy_mri_common = 1; | |
2361 | } | |
2362 | ||
2363 | /* Clear the mark of whether a symbol is an MRI common symbol. */ | |
2364 | ||
2365 | void | |
74937d39 | 2366 | symbol_clear_mri_common (symbolS *s) |
49309057 ILT |
2367 | { |
2368 | if (LOCAL_SYMBOL_CHECK (s)) | |
2369 | return; | |
2370 | s->sy_mri_common = 0; | |
2371 | } | |
2372 | ||
2373 | /* Return whether a symbol is an MRI common symbol. */ | |
2374 | ||
2375 | int | |
74937d39 | 2376 | symbol_mri_common_p (symbolS *s) |
49309057 ILT |
2377 | { |
2378 | if (LOCAL_SYMBOL_CHECK (s)) | |
2379 | return 0; | |
2380 | return s->sy_mri_common; | |
2381 | } | |
2382 | ||
2383 | /* Mark a symbol as having been written. */ | |
2384 | ||
2385 | void | |
74937d39 | 2386 | symbol_mark_written (symbolS *s) |
49309057 ILT |
2387 | { |
2388 | if (LOCAL_SYMBOL_CHECK (s)) | |
2389 | return; | |
2390 | s->written = 1; | |
2391 | } | |
2392 | ||
2393 | /* Clear the mark of whether a symbol has been written. */ | |
2394 | ||
2395 | void | |
74937d39 | 2396 | symbol_clear_written (symbolS *s) |
49309057 ILT |
2397 | { |
2398 | if (LOCAL_SYMBOL_CHECK (s)) | |
2399 | return; | |
2400 | s->written = 0; | |
2401 | } | |
2402 | ||
2403 | /* Return whether a symbol has been written. */ | |
2404 | ||
2405 | int | |
74937d39 | 2406 | symbol_written_p (symbolS *s) |
49309057 ILT |
2407 | { |
2408 | if (LOCAL_SYMBOL_CHECK (s)) | |
2409 | return 0; | |
2410 | return s->written; | |
2411 | } | |
2412 | ||
2413 | /* Mark a symbol has having been resolved. */ | |
2414 | ||
2415 | void | |
74937d39 | 2416 | symbol_mark_resolved (symbolS *s) |
49309057 ILT |
2417 | { |
2418 | if (LOCAL_SYMBOL_CHECK (s)) | |
2419 | { | |
2420 | local_symbol_mark_resolved ((struct local_symbol *) s); | |
2421 | return; | |
2422 | } | |
2423 | s->sy_resolved = 1; | |
2424 | } | |
2425 | ||
2426 | /* Return whether a symbol has been resolved. */ | |
2427 | ||
2428 | int | |
74937d39 | 2429 | symbol_resolved_p (symbolS *s) |
49309057 ILT |
2430 | { |
2431 | if (LOCAL_SYMBOL_CHECK (s)) | |
2432 | return local_symbol_resolved_p ((struct local_symbol *) s); | |
2433 | return s->sy_resolved; | |
2434 | } | |
2435 | ||
2436 | /* Return whether a symbol is a section symbol. */ | |
2437 | ||
2438 | int | |
74937d39 | 2439 | symbol_section_p (symbolS *s ATTRIBUTE_UNUSED) |
49309057 ILT |
2440 | { |
2441 | if (LOCAL_SYMBOL_CHECK (s)) | |
2442 | return 0; | |
49309057 | 2443 | return (s->bsym->flags & BSF_SECTION_SYM) != 0; |
49309057 ILT |
2444 | } |
2445 | ||
2446 | /* Return whether a symbol is equated to another symbol. */ | |
2447 | ||
2448 | int | |
74937d39 | 2449 | symbol_equated_p (symbolS *s) |
49309057 ILT |
2450 | { |
2451 | if (LOCAL_SYMBOL_CHECK (s)) | |
2452 | return 0; | |
2453 | return s->sy_value.X_op == O_symbol; | |
2454 | } | |
2455 | ||
e0890092 AM |
2456 | /* Return whether a symbol is equated to another symbol, and should be |
2457 | treated specially when writing out relocs. */ | |
2458 | ||
2459 | int | |
74937d39 | 2460 | symbol_equated_reloc_p (symbolS *s) |
e0890092 AM |
2461 | { |
2462 | if (LOCAL_SYMBOL_CHECK (s)) | |
2463 | return 0; | |
2464 | /* X_op_symbol, normally not used for O_symbol, is set by | |
2465 | resolve_symbol_value to flag expression syms that have been | |
2466 | equated. */ | |
2467 | return (s->sy_value.X_op == O_symbol | |
7be1c489 | 2468 | #if defined (OBJ_COFF) && defined (TE_PE) |
977cdf5a NC |
2469 | && ! S_IS_WEAK (s) |
2470 | #endif | |
e0890092 AM |
2471 | && ((s->sy_resolved && s->sy_value.X_op_symbol != NULL) |
2472 | || ! S_IS_DEFINED (s) | |
2473 | || S_IS_COMMON (s))); | |
2474 | } | |
2475 | ||
49309057 ILT |
2476 | /* Return whether a symbol has a constant value. */ |
2477 | ||
2478 | int | |
74937d39 | 2479 | symbol_constant_p (symbolS *s) |
49309057 ILT |
2480 | { |
2481 | if (LOCAL_SYMBOL_CHECK (s)) | |
2482 | return 1; | |
2483 | return s->sy_value.X_op == O_constant; | |
2484 | } | |
2485 | ||
49309057 ILT |
2486 | /* Return the BFD symbol for a symbol. */ |
2487 | ||
2488 | asymbol * | |
74937d39 | 2489 | symbol_get_bfdsym (symbolS *s) |
49309057 ILT |
2490 | { |
2491 | if (LOCAL_SYMBOL_CHECK (s)) | |
2492 | s = local_symbol_convert ((struct local_symbol *) s); | |
2493 | return s->bsym; | |
2494 | } | |
2495 | ||
2496 | /* Set the BFD symbol for a symbol. */ | |
2497 | ||
2498 | void | |
74937d39 | 2499 | symbol_set_bfdsym (symbolS *s, asymbol *bsym) |
49309057 ILT |
2500 | { |
2501 | if (LOCAL_SYMBOL_CHECK (s)) | |
2502 | s = local_symbol_convert ((struct local_symbol *) s); | |
22fe14ad NC |
2503 | /* Usually, it is harmless to reset a symbol to a BFD section |
2504 | symbol. For example, obj_elf_change_section sets the BFD symbol | |
2505 | of an old symbol with the newly created section symbol. But when | |
2506 | we have multiple sections with the same name, the newly created | |
2507 | section may have the same name as an old section. We check if the | |
2508 | old symbol has been already marked as a section symbol before | |
2509 | resetting it. */ | |
2510 | if ((s->bsym->flags & BSF_SECTION_SYM) == 0) | |
2511 | s->bsym = bsym; | |
2512 | /* else XXX - What do we do now ? */ | |
49309057 ILT |
2513 | } |
2514 | ||
49309057 ILT |
2515 | #ifdef OBJ_SYMFIELD_TYPE |
2516 | ||
2517 | /* Get a pointer to the object format information for a symbol. */ | |
2518 | ||
2519 | OBJ_SYMFIELD_TYPE * | |
74937d39 | 2520 | symbol_get_obj (symbolS *s) |
49309057 ILT |
2521 | { |
2522 | if (LOCAL_SYMBOL_CHECK (s)) | |
2523 | s = local_symbol_convert ((struct local_symbol *) s); | |
2524 | return &s->sy_obj; | |
2525 | } | |
2526 | ||
2527 | /* Set the object format information for a symbol. */ | |
2528 | ||
2529 | void | |
74937d39 | 2530 | symbol_set_obj (symbolS *s, OBJ_SYMFIELD_TYPE *o) |
49309057 ILT |
2531 | { |
2532 | if (LOCAL_SYMBOL_CHECK (s)) | |
2533 | s = local_symbol_convert ((struct local_symbol *) s); | |
2534 | s->sy_obj = *o; | |
2535 | } | |
2536 | ||
2537 | #endif /* OBJ_SYMFIELD_TYPE */ | |
2538 | ||
2539 | #ifdef TC_SYMFIELD_TYPE | |
2540 | ||
2541 | /* Get a pointer to the processor information for a symbol. */ | |
2542 | ||
2543 | TC_SYMFIELD_TYPE * | |
74937d39 | 2544 | symbol_get_tc (symbolS *s) |
49309057 ILT |
2545 | { |
2546 | if (LOCAL_SYMBOL_CHECK (s)) | |
2547 | s = local_symbol_convert ((struct local_symbol *) s); | |
2548 | return &s->sy_tc; | |
2549 | } | |
2550 | ||
2551 | /* Set the processor information for a symbol. */ | |
2552 | ||
2553 | void | |
74937d39 | 2554 | symbol_set_tc (symbolS *s, TC_SYMFIELD_TYPE *o) |
49309057 ILT |
2555 | { |
2556 | if (LOCAL_SYMBOL_CHECK (s)) | |
2557 | s = local_symbol_convert ((struct local_symbol *) s); | |
2558 | s->sy_tc = *o; | |
2559 | } | |
2560 | ||
2561 | #endif /* TC_SYMFIELD_TYPE */ | |
2562 | ||
252b5132 | 2563 | void |
74937d39 | 2564 | symbol_begin (void) |
252b5132 RH |
2565 | { |
2566 | symbol_lastP = NULL; | |
7c743825 | 2567 | symbol_rootP = NULL; /* In case we have 0 symbols (!!) */ |
252b5132 | 2568 | sy_hash = hash_new (); |
49309057 | 2569 | local_hash = hash_new (); |
252b5132 RH |
2570 | |
2571 | memset ((char *) (&abs_symbol), '\0', sizeof (abs_symbol)); | |
252b5132 RH |
2572 | #if defined (EMIT_SECTION_SYMBOLS) || !defined (RELOC_REQUIRES_SYMBOL) |
2573 | abs_symbol.bsym = bfd_abs_section.symbol; | |
252b5132 RH |
2574 | #endif |
2575 | abs_symbol.sy_value.X_op = O_constant; | |
2576 | abs_symbol.sy_frag = &zero_address_frag; | |
2577 | ||
2578 | if (LOCAL_LABELS_FB) | |
2579 | fb_label_init (); | |
2580 | } | |
252b5132 RH |
2581 | \f |
2582 | int indent_level; | |
2583 | ||
2584 | /* Maximum indent level. | |
2585 | Available for modification inside a gdb session. */ | |
87c245cc | 2586 | static int max_indent_level = 8; |
252b5132 | 2587 | |
252b5132 | 2588 | void |
74937d39 | 2589 | print_symbol_value_1 (FILE *file, symbolS *sym) |
252b5132 RH |
2590 | { |
2591 | const char *name = S_GET_NAME (sym); | |
2592 | if (!name || !name[0]) | |
2593 | name = "(unnamed)"; | |
2594 | fprintf (file, "sym %lx %s", (unsigned long) sym, name); | |
49309057 ILT |
2595 | |
2596 | if (LOCAL_SYMBOL_CHECK (sym)) | |
2597 | { | |
2598 | struct local_symbol *locsym = (struct local_symbol *) sym; | |
2599 | if (local_symbol_get_frag (locsym) != &zero_address_frag | |
2600 | && local_symbol_get_frag (locsym) != NULL) | |
2601 | fprintf (file, " frag %lx", (long) local_symbol_get_frag (locsym)); | |
2602 | if (local_symbol_resolved_p (locsym)) | |
2603 | fprintf (file, " resolved"); | |
2604 | fprintf (file, " local"); | |
2605 | } | |
2606 | else | |
2607 | { | |
2608 | if (sym->sy_frag != &zero_address_frag) | |
2609 | fprintf (file, " frag %lx", (long) sym->sy_frag); | |
2610 | if (sym->written) | |
2611 | fprintf (file, " written"); | |
2612 | if (sym->sy_resolved) | |
2613 | fprintf (file, " resolved"); | |
2614 | else if (sym->sy_resolving) | |
2615 | fprintf (file, " resolving"); | |
2616 | if (sym->sy_used_in_reloc) | |
2617 | fprintf (file, " used-in-reloc"); | |
2618 | if (sym->sy_used) | |
2619 | fprintf (file, " used"); | |
2620 | if (S_IS_LOCAL (sym)) | |
2621 | fprintf (file, " local"); | |
e97b3f28 | 2622 | if (S_IS_EXTERNAL (sym)) |
49309057 | 2623 | fprintf (file, " extern"); |
06e77878 AO |
2624 | if (S_IS_WEAK (sym)) |
2625 | fprintf (file, " weak"); | |
49309057 ILT |
2626 | if (S_IS_DEBUG (sym)) |
2627 | fprintf (file, " debug"); | |
2628 | if (S_IS_DEFINED (sym)) | |
2629 | fprintf (file, " defined"); | |
2630 | } | |
06e77878 AO |
2631 | if (S_IS_WEAKREFR (sym)) |
2632 | fprintf (file, " weakrefr"); | |
2633 | if (S_IS_WEAKREFD (sym)) | |
2634 | fprintf (file, " weakrefd"); | |
252b5132 | 2635 | fprintf (file, " %s", segment_name (S_GET_SEGMENT (sym))); |
49309057 | 2636 | if (symbol_resolved_p (sym)) |
252b5132 RH |
2637 | { |
2638 | segT s = S_GET_SEGMENT (sym); | |
2639 | ||
2640 | if (s != undefined_section | |
411863a4 | 2641 | && s != expr_section) |
252b5132 RH |
2642 | fprintf (file, " %lx", (long) S_GET_VALUE (sym)); |
2643 | } | |
2644 | else if (indent_level < max_indent_level | |
2645 | && S_GET_SEGMENT (sym) != undefined_section) | |
2646 | { | |
2647 | indent_level++; | |
2648 | fprintf (file, "\n%*s<", indent_level * 4, ""); | |
49309057 ILT |
2649 | if (LOCAL_SYMBOL_CHECK (sym)) |
2650 | fprintf (file, "constant %lx", | |
bd780143 | 2651 | (long) ((struct local_symbol *) sym)->lsy_value); |
49309057 ILT |
2652 | else |
2653 | print_expr_1 (file, &sym->sy_value); | |
252b5132 RH |
2654 | fprintf (file, ">"); |
2655 | indent_level--; | |
2656 | } | |
2657 | fflush (file); | |
2658 | } | |
2659 | ||
2660 | void | |
74937d39 | 2661 | print_symbol_value (symbolS *sym) |
252b5132 RH |
2662 | { |
2663 | indent_level = 0; | |
2664 | print_symbol_value_1 (stderr, sym); | |
2665 | fprintf (stderr, "\n"); | |
2666 | } | |
2667 | ||
2668 | static void | |
74937d39 | 2669 | print_binary (FILE *file, const char *name, expressionS *exp) |
252b5132 RH |
2670 | { |
2671 | indent_level++; | |
2672 | fprintf (file, "%s\n%*s<", name, indent_level * 4, ""); | |
2673 | print_symbol_value_1 (file, exp->X_add_symbol); | |
2674 | fprintf (file, ">\n%*s<", indent_level * 4, ""); | |
2675 | print_symbol_value_1 (file, exp->X_op_symbol); | |
2676 | fprintf (file, ">"); | |
2677 | indent_level--; | |
2678 | } | |
2679 | ||
2680 | void | |
74937d39 | 2681 | print_expr_1 (FILE *file, expressionS *exp) |
252b5132 RH |
2682 | { |
2683 | fprintf (file, "expr %lx ", (long) exp); | |
2684 | switch (exp->X_op) | |
2685 | { | |
2686 | case O_illegal: | |
2687 | fprintf (file, "illegal"); | |
2688 | break; | |
2689 | case O_absent: | |
2690 | fprintf (file, "absent"); | |
2691 | break; | |
2692 | case O_constant: | |
2693 | fprintf (file, "constant %lx", (long) exp->X_add_number); | |
2694 | break; | |
2695 | case O_symbol: | |
2696 | indent_level++; | |
2697 | fprintf (file, "symbol\n%*s<", indent_level * 4, ""); | |
2698 | print_symbol_value_1 (file, exp->X_add_symbol); | |
2699 | fprintf (file, ">"); | |
2700 | maybe_print_addnum: | |
2701 | if (exp->X_add_number) | |
2702 | fprintf (file, "\n%*s%lx", indent_level * 4, "", | |
2703 | (long) exp->X_add_number); | |
2704 | indent_level--; | |
2705 | break; | |
2706 | case O_register: | |
2707 | fprintf (file, "register #%d", (int) exp->X_add_number); | |
2708 | break; | |
2709 | case O_big: | |
2710 | fprintf (file, "big"); | |
2711 | break; | |
2712 | case O_uminus: | |
2713 | fprintf (file, "uminus -<"); | |
2714 | indent_level++; | |
2715 | print_symbol_value_1 (file, exp->X_add_symbol); | |
2716 | fprintf (file, ">"); | |
2717 | goto maybe_print_addnum; | |
2718 | case O_bit_not: | |
2719 | fprintf (file, "bit_not"); | |
2720 | break; | |
2721 | case O_multiply: | |
2722 | print_binary (file, "multiply", exp); | |
2723 | break; | |
2724 | case O_divide: | |
2725 | print_binary (file, "divide", exp); | |
2726 | break; | |
2727 | case O_modulus: | |
2728 | print_binary (file, "modulus", exp); | |
2729 | break; | |
2730 | case O_left_shift: | |
2731 | print_binary (file, "lshift", exp); | |
2732 | break; | |
2733 | case O_right_shift: | |
2734 | print_binary (file, "rshift", exp); | |
2735 | break; | |
2736 | case O_bit_inclusive_or: | |
2737 | print_binary (file, "bit_ior", exp); | |
2738 | break; | |
2739 | case O_bit_exclusive_or: | |
2740 | print_binary (file, "bit_xor", exp); | |
2741 | break; | |
2742 | case O_bit_and: | |
2743 | print_binary (file, "bit_and", exp); | |
2744 | break; | |
2745 | case O_eq: | |
2746 | print_binary (file, "eq", exp); | |
2747 | break; | |
2748 | case O_ne: | |
2749 | print_binary (file, "ne", exp); | |
2750 | break; | |
2751 | case O_lt: | |
2752 | print_binary (file, "lt", exp); | |
2753 | break; | |
2754 | case O_le: | |
2755 | print_binary (file, "le", exp); | |
2756 | break; | |
2757 | case O_ge: | |
2758 | print_binary (file, "ge", exp); | |
2759 | break; | |
2760 | case O_gt: | |
2761 | print_binary (file, "gt", exp); | |
2762 | break; | |
2763 | case O_logical_and: | |
2764 | print_binary (file, "logical_and", exp); | |
2765 | break; | |
2766 | case O_logical_or: | |
2767 | print_binary (file, "logical_or", exp); | |
2768 | break; | |
2769 | case O_add: | |
2770 | indent_level++; | |
2771 | fprintf (file, "add\n%*s<", indent_level * 4, ""); | |
2772 | print_symbol_value_1 (file, exp->X_add_symbol); | |
2773 | fprintf (file, ">\n%*s<", indent_level * 4, ""); | |
2774 | print_symbol_value_1 (file, exp->X_op_symbol); | |
2775 | fprintf (file, ">"); | |
2776 | goto maybe_print_addnum; | |
2777 | case O_subtract: | |
2778 | indent_level++; | |
2779 | fprintf (file, "subtract\n%*s<", indent_level * 4, ""); | |
2780 | print_symbol_value_1 (file, exp->X_add_symbol); | |
2781 | fprintf (file, ">\n%*s<", indent_level * 4, ""); | |
2782 | print_symbol_value_1 (file, exp->X_op_symbol); | |
2783 | fprintf (file, ">"); | |
2784 | goto maybe_print_addnum; | |
2785 | default: | |
2786 | fprintf (file, "{unknown opcode %d}", (int) exp->X_op); | |
2787 | break; | |
2788 | } | |
2789 | fflush (stdout); | |
2790 | } | |
2791 | ||
2792 | void | |
74937d39 | 2793 | print_expr (expressionS *exp) |
252b5132 RH |
2794 | { |
2795 | print_expr_1 (stderr, exp); | |
2796 | fprintf (stderr, "\n"); | |
2797 | } | |
2798 | ||
2799 | void | |
74937d39 | 2800 | symbol_print_statistics (FILE *file) |
252b5132 RH |
2801 | { |
2802 | hash_print_statistics (file, "symbol table", sy_hash); | |
49309057 ILT |
2803 | hash_print_statistics (file, "mini local symbol table", local_hash); |
2804 | fprintf (file, "%lu mini local symbols created, %lu converted\n", | |
2805 | local_symbol_count, local_symbol_conversion_count); | |
252b5132 | 2806 | } |