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, |
885afe7b | 3 | 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 |
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) | |
885afe7b | 147 | as_fatal ("bfd_make_empty_symbol: %s", bfd_errmsg (bfd_get_error ())); |
252b5132 RH |
148 | S_SET_NAME (symbolP, preserved_copy_of_name); |
149 | ||
150 | S_SET_SEGMENT (symbolP, segment); | |
151 | S_SET_VALUE (symbolP, valu); | |
152 | symbol_clear_list_pointers (symbolP); | |
153 | ||
154 | symbolP->sy_frag = frag; | |
252b5132 RH |
155 | |
156 | obj_symbol_new_hook (symbolP); | |
157 | ||
158 | #ifdef tc_symbol_new_hook | |
159 | tc_symbol_new_hook (symbolP); | |
160 | #endif | |
161 | ||
162 | return symbolP; | |
163 | } | |
164 | \f | |
49309057 ILT |
165 | |
166 | /* Local symbol support. If we can get away with it, we keep only a | |
167 | small amount of information for local symbols. */ | |
168 | ||
74937d39 | 169 | static symbolS *local_symbol_convert (struct local_symbol *); |
49309057 ILT |
170 | |
171 | /* Used for statistics. */ | |
172 | ||
173 | static unsigned long local_symbol_count; | |
174 | static unsigned long local_symbol_conversion_count; | |
175 | ||
176 | /* This macro is called with a symbol argument passed by reference. | |
177 | It returns whether this is a local symbol. If necessary, it | |
178 | changes its argument to the real symbol. */ | |
179 | ||
180 | #define LOCAL_SYMBOL_CHECK(s) \ | |
181 | (s->bsym == NULL \ | |
182 | ? (local_symbol_converted_p ((struct local_symbol *) s) \ | |
183 | ? (s = local_symbol_get_real_symbol ((struct local_symbol *) s), \ | |
184 | 0) \ | |
185 | : 1) \ | |
186 | : 0) | |
187 | ||
188 | /* Create a local symbol and insert it into the local hash table. */ | |
189 | ||
87c245cc | 190 | static struct local_symbol * |
74937d39 | 191 | local_symbol_make (const char *name, segT section, valueT value, fragS *frag) |
49309057 ILT |
192 | { |
193 | char *name_copy; | |
194 | struct local_symbol *ret; | |
195 | ||
196 | ++local_symbol_count; | |
197 | ||
198 | name_copy = save_symbol_name (name); | |
199 | ||
200 | ret = (struct local_symbol *) obstack_alloc (¬es, sizeof *ret); | |
201 | ret->lsy_marker = NULL; | |
202 | ret->lsy_name = name_copy; | |
203 | ret->lsy_section = section; | |
204 | local_symbol_set_frag (ret, frag); | |
bd780143 | 205 | ret->lsy_value = value; |
49309057 ILT |
206 | |
207 | hash_jam (local_hash, name_copy, (PTR) ret); | |
208 | ||
209 | return ret; | |
210 | } | |
211 | ||
212 | /* Convert a local symbol into a real symbol. Note that we do not | |
213 | reclaim the space used by the local symbol. */ | |
214 | ||
215 | static symbolS * | |
74937d39 | 216 | local_symbol_convert (struct local_symbol *locsym) |
49309057 ILT |
217 | { |
218 | symbolS *ret; | |
219 | ||
220 | assert (locsym->lsy_marker == NULL); | |
221 | if (local_symbol_converted_p (locsym)) | |
222 | return local_symbol_get_real_symbol (locsym); | |
223 | ||
224 | ++local_symbol_conversion_count; | |
225 | ||
bd780143 | 226 | ret = symbol_new (locsym->lsy_name, locsym->lsy_section, locsym->lsy_value, |
49309057 ILT |
227 | local_symbol_get_frag (locsym)); |
228 | ||
229 | if (local_symbol_resolved_p (locsym)) | |
230 | ret->sy_resolved = 1; | |
231 | ||
232 | /* Local symbols are always either defined or used. */ | |
233 | ret->sy_used = 1; | |
234 | ||
8c5e1ccd AO |
235 | #ifdef TC_LOCAL_SYMFIELD_CONVERT |
236 | TC_LOCAL_SYMFIELD_CONVERT (locsym, ret); | |
237 | #endif | |
238 | ||
49309057 ILT |
239 | symbol_table_insert (ret); |
240 | ||
241 | local_symbol_mark_converted (locsym); | |
242 | local_symbol_set_real_symbol (locsym, ret); | |
243 | ||
244 | hash_jam (local_hash, locsym->lsy_name, NULL); | |
245 | ||
246 | return ret; | |
247 | } | |
49309057 | 248 | \f |
7c743825 KH |
249 | /* We have just seen "<name>:". |
250 | Creates a struct symbol unless it already exists. | |
251 | ||
252 | Gripes if we are redefining a symbol incompatibly (and ignores it). */ | |
252b5132 | 253 | |
252b5132 | 254 | symbolS * |
74937d39 KH |
255 | colon (/* Just seen "x:" - rattle symbols & frags. */ |
256 | const char *sym_name /* Symbol name, as a cannonical string. */ | |
257 | /* We copy this string: OK to alter later. */) | |
252b5132 | 258 | { |
7c743825 | 259 | register symbolS *symbolP; /* Symbol we are working with. */ |
252b5132 | 260 | |
7cf10893 | 261 | /* Sun local labels go out of scope whenever a non-local symbol is |
252b5132 | 262 | defined. */ |
7be1c489 AM |
263 | if (LOCAL_LABELS_DOLLAR |
264 | && !bfd_is_local_label_name (stdoutput, sym_name)) | |
265 | dollar_label_clear (); | |
252b5132 RH |
266 | |
267 | #ifndef WORKING_DOT_WORD | |
268 | if (new_broken_words) | |
269 | { | |
270 | struct broken_word *a; | |
271 | int possible_bytes; | |
272 | fragS *frag_tmp; | |
273 | char *frag_opcode; | |
274 | ||
7cf10893 NC |
275 | if (now_seg == absolute_section) |
276 | { | |
277 | as_bad (_("cannot define symbol `%s' in absolute section"), sym_name); | |
278 | return NULL; | |
279 | } | |
1d3b2b27 | 280 | |
252b5132 RH |
281 | possible_bytes = (md_short_jump_size |
282 | + new_broken_words * md_long_jump_size); | |
283 | ||
284 | frag_tmp = frag_now; | |
285 | frag_opcode = frag_var (rs_broken_word, | |
286 | possible_bytes, | |
287 | possible_bytes, | |
288 | (relax_substateT) 0, | |
289 | (symbolS *) broken_words, | |
290 | (offsetT) 0, | |
291 | NULL); | |
292 | ||
7c743825 KH |
293 | /* We want to store the pointer to where to insert the jump |
294 | table in the fr_opcode of the rs_broken_word frag. This | |
295 | requires a little hackery. */ | |
252b5132 RH |
296 | while (frag_tmp |
297 | && (frag_tmp->fr_type != rs_broken_word | |
298 | || frag_tmp->fr_opcode)) | |
299 | frag_tmp = frag_tmp->fr_next; | |
300 | know (frag_tmp); | |
301 | frag_tmp->fr_opcode = frag_opcode; | |
302 | new_broken_words = 0; | |
303 | ||
304 | for (a = broken_words; a && a->dispfrag == 0; a = a->next_broken_word) | |
305 | a->dispfrag = frag_tmp; | |
306 | } | |
307 | #endif /* WORKING_DOT_WORD */ | |
308 | ||
309 | if ((symbolP = symbol_find (sym_name)) != 0) | |
310 | { | |
06e77878 | 311 | S_CLEAR_WEAKREFR (symbolP); |
252b5132 RH |
312 | #ifdef RESOLVE_SYMBOL_REDEFINITION |
313 | if (RESOLVE_SYMBOL_REDEFINITION (symbolP)) | |
314 | return symbolP; | |
315 | #endif | |
7c743825 | 316 | /* Now check for undefined symbols. */ |
49309057 ILT |
317 | if (LOCAL_SYMBOL_CHECK (symbolP)) |
318 | { | |
319 | struct local_symbol *locsym = (struct local_symbol *) symbolP; | |
320 | ||
321 | if (locsym->lsy_section != undefined_section | |
322 | && (local_symbol_get_frag (locsym) != frag_now | |
323 | || locsym->lsy_section != now_seg | |
bd780143 | 324 | || locsym->lsy_value != frag_now_fix ())) |
49309057 | 325 | { |
0e389e77 | 326 | as_bad (_("symbol `%s' is already defined"), sym_name); |
49309057 ILT |
327 | return symbolP; |
328 | } | |
329 | ||
330 | locsym->lsy_section = now_seg; | |
331 | local_symbol_set_frag (locsym, frag_now); | |
bd780143 | 332 | locsym->lsy_value = frag_now_fix (); |
49309057 | 333 | } |
b54788f8 | 334 | else if (!(S_IS_DEFINED (symbolP) || symbol_equated_p (symbolP)) |
92757bc9 JB |
335 | || S_IS_COMMON (symbolP) |
336 | || S_IS_VOLATILE (symbolP)) | |
252b5132 | 337 | { |
89cdfe57 | 338 | if (S_IS_VOLATILE (symbolP)) |
92757bc9 JB |
339 | { |
340 | symbolP = symbol_clone (symbolP, 1); | |
341 | S_SET_VALUE (symbolP, 0); | |
342 | S_CLEAR_VOLATILE (symbolP); | |
343 | } | |
252b5132 RH |
344 | if (S_GET_VALUE (symbolP) == 0) |
345 | { | |
346 | symbolP->sy_frag = frag_now; | |
347 | #ifdef OBJ_VMS | |
7c743825 | 348 | S_SET_OTHER (symbolP, const_flag); |
252b5132 RH |
349 | #endif |
350 | S_SET_VALUE (symbolP, (valueT) frag_now_fix ()); | |
351 | S_SET_SEGMENT (symbolP, now_seg); | |
352 | #ifdef N_UNDF | |
353 | know (N_UNDF == 0); | |
7c743825 | 354 | #endif /* if we have one, it better be zero. */ |
252b5132 RH |
355 | |
356 | } | |
357 | else | |
358 | { | |
7c743825 KH |
359 | /* There are still several cases to check: |
360 | ||
361 | A .comm/.lcomm symbol being redefined as initialized | |
362 | data is OK | |
363 | ||
364 | A .comm/.lcomm symbol being redefined with a larger | |
365 | size is also OK | |
366 | ||
367 | This only used to be allowed on VMS gas, but Sun cc | |
368 | on the sparc also depends on it. */ | |
252b5132 RH |
369 | |
370 | if (((!S_IS_DEBUG (symbolP) | |
371 | && (!S_IS_DEFINED (symbolP) || S_IS_COMMON (symbolP)) | |
372 | && S_IS_EXTERNAL (symbolP)) | |
373 | || S_GET_SEGMENT (symbolP) == bss_section) | |
374 | && (now_seg == data_section | |
b3ce1bf7 | 375 | || now_seg == bss_section |
252b5132 RH |
376 | || now_seg == S_GET_SEGMENT (symbolP))) |
377 | { | |
7c743825 | 378 | /* Select which of the 2 cases this is. */ |
252b5132 RH |
379 | if (now_seg != data_section) |
380 | { | |
7c743825 KH |
381 | /* New .comm for prev .comm symbol. |
382 | ||
383 | If the new size is larger we just change its | |
384 | value. If the new size is smaller, we ignore | |
385 | this symbol. */ | |
252b5132 RH |
386 | if (S_GET_VALUE (symbolP) |
387 | < ((unsigned) frag_now_fix ())) | |
388 | { | |
389 | S_SET_VALUE (symbolP, (valueT) frag_now_fix ()); | |
390 | } | |
391 | } | |
392 | else | |
393 | { | |
394 | /* It is a .comm/.lcomm being converted to initialized | |
395 | data. */ | |
396 | symbolP->sy_frag = frag_now; | |
397 | #ifdef OBJ_VMS | |
7c743825 | 398 | S_SET_OTHER (symbolP, const_flag); |
252b5132 RH |
399 | #endif |
400 | S_SET_VALUE (symbolP, (valueT) frag_now_fix ()); | |
7c743825 | 401 | S_SET_SEGMENT (symbolP, now_seg); /* Keep N_EXT bit. */ |
252b5132 RH |
402 | } |
403 | } | |
404 | else | |
405 | { | |
4c63da97 AM |
406 | #if (!defined (OBJ_AOUT) && !defined (OBJ_MAYBE_AOUT) \ |
407 | && !defined (OBJ_BOUT) && !defined (OBJ_MAYBE_BOUT)) | |
408 | static const char *od_buf = ""; | |
252b5132 | 409 | #else |
4c63da97 AM |
410 | char od_buf[100]; |
411 | od_buf[0] = '\0'; | |
4c63da97 | 412 | if (OUTPUT_FLAVOR == bfd_target_aout_flavour) |
d1a6c242 KH |
413 | sprintf (od_buf, "%d.%d.", |
414 | S_GET_OTHER (symbolP), | |
415 | S_GET_DESC (symbolP)); | |
4c63da97 | 416 | #endif |
0e389e77 | 417 | as_bad (_("symbol `%s' is already defined as \"%s\"/%s%ld"), |
252b5132 RH |
418 | sym_name, |
419 | segment_name (S_GET_SEGMENT (symbolP)), | |
4c63da97 | 420 | od_buf, |
252b5132 | 421 | (long) S_GET_VALUE (symbolP)); |
252b5132 | 422 | } |
7c743825 | 423 | } /* if the undefined symbol has no value */ |
252b5132 RH |
424 | } |
425 | else | |
426 | { | |
7c743825 | 427 | /* Don't blow up if the definition is the same. */ |
252b5132 RH |
428 | if (!(frag_now == symbolP->sy_frag |
429 | && S_GET_VALUE (symbolP) == frag_now_fix () | |
430 | && S_GET_SEGMENT (symbolP) == now_seg)) | |
92757bc9 JB |
431 | { |
432 | as_bad (_("symbol `%s' is already defined"), sym_name); | |
433 | symbolP = symbol_clone (symbolP, 0); | |
434 | } | |
d4887adc | 435 | } |
252b5132 RH |
436 | |
437 | } | |
49309057 ILT |
438 | else if (! flag_keep_locals && bfd_is_local_label_name (stdoutput, sym_name)) |
439 | { | |
440 | symbolP = (symbolS *) local_symbol_make (sym_name, now_seg, | |
441 | (valueT) frag_now_fix (), | |
442 | frag_now); | |
443 | } | |
252b5132 RH |
444 | else |
445 | { | |
446 | symbolP = symbol_new (sym_name, now_seg, (valueT) frag_now_fix (), | |
447 | frag_now); | |
448 | #ifdef OBJ_VMS | |
449 | S_SET_OTHER (symbolP, const_flag); | |
450 | #endif /* OBJ_VMS */ | |
451 | ||
452 | symbol_table_insert (symbolP); | |
d4887adc | 453 | } |
252b5132 RH |
454 | |
455 | if (mri_common_symbol != NULL) | |
456 | { | |
457 | /* This symbol is actually being defined within an MRI common | |
1d3b2b27 | 458 | section. This requires special handling. */ |
49309057 ILT |
459 | if (LOCAL_SYMBOL_CHECK (symbolP)) |
460 | symbolP = local_symbol_convert ((struct local_symbol *) symbolP); | |
252b5132 RH |
461 | symbolP->sy_value.X_op = O_symbol; |
462 | symbolP->sy_value.X_add_symbol = mri_common_symbol; | |
463 | symbolP->sy_value.X_add_number = S_GET_VALUE (mri_common_symbol); | |
464 | symbolP->sy_frag = &zero_address_frag; | |
465 | S_SET_SEGMENT (symbolP, expr_section); | |
466 | symbolP->sy_mri_common = 1; | |
467 | } | |
468 | ||
469 | #ifdef tc_frob_label | |
470 | tc_frob_label (symbolP); | |
471 | #endif | |
472 | #ifdef obj_frob_label | |
473 | obj_frob_label (symbolP); | |
474 | #endif | |
475 | ||
476 | return symbolP; | |
477 | } | |
478 | \f | |
7c743825 | 479 | /* Die if we can't insert the symbol. */ |
252b5132 | 480 | |
7c743825 | 481 | void |
74937d39 | 482 | symbol_table_insert (symbolS *symbolP) |
252b5132 RH |
483 | { |
484 | register const char *error_string; | |
485 | ||
486 | know (symbolP); | |
487 | know (S_GET_NAME (symbolP)); | |
488 | ||
49309057 ILT |
489 | if (LOCAL_SYMBOL_CHECK (symbolP)) |
490 | { | |
491 | error_string = hash_jam (local_hash, S_GET_NAME (symbolP), | |
492 | (PTR) symbolP); | |
493 | if (error_string != NULL) | |
0e389e77 | 494 | as_fatal (_("inserting \"%s\" into symbol table failed: %s"), |
49309057 ILT |
495 | S_GET_NAME (symbolP), error_string); |
496 | return; | |
497 | } | |
498 | ||
252b5132 RH |
499 | if ((error_string = hash_jam (sy_hash, S_GET_NAME (symbolP), (PTR) symbolP))) |
500 | { | |
0e389e77 | 501 | as_fatal (_("inserting \"%s\" into symbol table failed: %s"), |
252b5132 | 502 | S_GET_NAME (symbolP), error_string); |
7c743825 KH |
503 | } /* on error */ |
504 | } | |
252b5132 | 505 | \f |
7c743825 KH |
506 | /* If a symbol name does not exist, create it as undefined, and insert |
507 | it into the symbol table. Return a pointer to it. */ | |
508 | ||
252b5132 | 509 | symbolS * |
74937d39 | 510 | symbol_find_or_make (const char *name) |
252b5132 RH |
511 | { |
512 | register symbolS *symbolP; | |
513 | ||
514 | symbolP = symbol_find (name); | |
515 | ||
516 | if (symbolP == NULL) | |
517 | { | |
49309057 ILT |
518 | if (! flag_keep_locals && bfd_is_local_label_name (stdoutput, name)) |
519 | { | |
520 | symbolP = md_undefined_symbol ((char *) name); | |
521 | if (symbolP != NULL) | |
522 | return symbolP; | |
523 | ||
524 | symbolP = (symbolS *) local_symbol_make (name, undefined_section, | |
525 | (valueT) 0, | |
526 | &zero_address_frag); | |
527 | return symbolP; | |
528 | } | |
49309057 | 529 | |
252b5132 RH |
530 | symbolP = symbol_make (name); |
531 | ||
532 | symbol_table_insert (symbolP); | |
533 | } /* if symbol wasn't found */ | |
534 | ||
535 | return (symbolP); | |
7c743825 | 536 | } |
252b5132 RH |
537 | |
538 | symbolS * | |
74937d39 | 539 | symbol_make (const char *name) |
252b5132 RH |
540 | { |
541 | symbolS *symbolP; | |
542 | ||
7c743825 | 543 | /* Let the machine description default it, e.g. for register names. */ |
252b5132 RH |
544 | symbolP = md_undefined_symbol ((char *) name); |
545 | ||
546 | if (!symbolP) | |
547 | symbolP = symbol_new (name, undefined_section, (valueT) 0, &zero_address_frag); | |
548 | ||
549 | return (symbolP); | |
7c743825 | 550 | } |
252b5132 | 551 | |
9497f5ac NC |
552 | symbolS * |
553 | symbol_clone (symbolS *orgsymP, int replace) | |
554 | { | |
555 | symbolS *newsymP; | |
6a2b6326 | 556 | asymbol *bsymorg, *bsymnew; |
9497f5ac NC |
557 | |
558 | /* Running local_symbol_convert on a clone that's not the one currently | |
559 | in local_hash would incorrectly replace the hash entry. Thus the | |
560 | symbol must be converted here. Note that the rest of the function | |
561 | depends on not encountering an unconverted symbol. */ | |
562 | if (LOCAL_SYMBOL_CHECK (orgsymP)) | |
563 | orgsymP = local_symbol_convert ((struct local_symbol *) orgsymP); | |
6a2b6326 | 564 | bsymorg = orgsymP->bsym; |
9497f5ac NC |
565 | |
566 | know (S_IS_DEFINED (orgsymP)); | |
567 | ||
568 | newsymP = obstack_alloc (¬es, sizeof (*newsymP)); | |
569 | *newsymP = *orgsymP; | |
6a2b6326 JB |
570 | bsymnew = bfd_make_empty_symbol (bfd_asymbol_bfd (bsymorg)); |
571 | if (bsymnew == NULL) | |
885afe7b | 572 | as_fatal ("bfd_make_empty_symbol: %s", bfd_errmsg (bfd_get_error ())); |
6a2b6326 JB |
573 | newsymP->bsym = bsymnew; |
574 | bsymnew->name = bsymorg->name; | |
575 | bsymnew->flags = bsymorg->flags; | |
576 | bsymnew->section = bsymorg->section; | |
6a2b6326 JB |
577 | bfd_copy_private_symbol_data (bfd_asymbol_bfd (bsymorg), bsymorg, |
578 | bfd_asymbol_bfd (bsymnew), bsymnew); | |
579 | ||
580 | #ifdef obj_symbol_clone_hook | |
581 | obj_symbol_clone_hook (newsymP, orgsymP); | |
582 | #endif | |
583 | ||
584 | #ifdef tc_symbol_clone_hook | |
585 | tc_symbol_clone_hook (newsymP, orgsymP); | |
586 | #endif | |
9497f5ac NC |
587 | |
588 | if (replace) | |
589 | { | |
590 | if (symbol_rootP == orgsymP) | |
591 | symbol_rootP = newsymP; | |
592 | else if (orgsymP->sy_previous) | |
593 | { | |
594 | orgsymP->sy_previous->sy_next = newsymP; | |
595 | orgsymP->sy_previous = NULL; | |
596 | } | |
597 | if (symbol_lastP == orgsymP) | |
598 | symbol_lastP = newsymP; | |
599 | else if (orgsymP->sy_next) | |
600 | orgsymP->sy_next->sy_previous = newsymP; | |
601 | orgsymP->sy_next = NULL; | |
602 | debug_verify_symchain (symbol_rootP, symbol_lastP); | |
603 | ||
604 | symbol_table_insert (newsymP); | |
605 | } | |
606 | ||
607 | return newsymP; | |
608 | } | |
609 | ||
610 | /* Referenced symbols, if they are forward references, need to be cloned | |
611 | (without replacing the original) so that the value of the referenced | |
612 | symbols at the point of use . */ | |
613 | ||
614 | #undef symbol_clone_if_forward_ref | |
615 | symbolS * | |
616 | symbol_clone_if_forward_ref (symbolS *symbolP, int is_forward) | |
617 | { | |
618 | if (symbolP && !LOCAL_SYMBOL_CHECK (symbolP)) | |
619 | { | |
620 | symbolS *add_symbol = symbolP->sy_value.X_add_symbol; | |
621 | symbolS *op_symbol = symbolP->sy_value.X_op_symbol; | |
622 | ||
623 | if (symbolP->sy_forward_ref) | |
624 | is_forward = 1; | |
625 | ||
626 | if (is_forward) | |
627 | { | |
628 | /* assign_symbol() clones volatile symbols; pre-existing expressions | |
629 | hold references to the original instance, but want the current | |
630 | value. Just repeat the lookup. */ | |
631 | if (add_symbol && S_IS_VOLATILE (add_symbol)) | |
632 | add_symbol = symbol_find_exact (S_GET_NAME (add_symbol)); | |
633 | if (op_symbol && S_IS_VOLATILE (op_symbol)) | |
634 | op_symbol = symbol_find_exact (S_GET_NAME (op_symbol)); | |
635 | } | |
636 | ||
637 | /* Re-using sy_resolving here, as this routine cannot get called from | |
638 | symbol resolution code. */ | |
639 | if (symbolP->bsym->section == expr_section && !symbolP->sy_resolving) | |
640 | { | |
641 | symbolP->sy_resolving = 1; | |
642 | add_symbol = symbol_clone_if_forward_ref (add_symbol, is_forward); | |
643 | op_symbol = symbol_clone_if_forward_ref (op_symbol, is_forward); | |
644 | symbolP->sy_resolving = 0; | |
645 | } | |
646 | ||
647 | if (symbolP->sy_forward_ref | |
648 | || add_symbol != symbolP->sy_value.X_add_symbol | |
649 | || op_symbol != symbolP->sy_value.X_op_symbol) | |
650 | symbolP = symbol_clone (symbolP, 0); | |
651 | ||
652 | symbolP->sy_value.X_add_symbol = add_symbol; | |
653 | symbolP->sy_value.X_op_symbol = op_symbol; | |
654 | } | |
655 | ||
656 | return symbolP; | |
657 | } | |
658 | ||
b7d6ed97 | 659 | symbolS * |
74937d39 | 660 | symbol_temp_new (segT seg, valueT ofs, fragS *frag) |
b7d6ed97 | 661 | { |
756d1d01 | 662 | return symbol_new (FAKE_LABEL_NAME, seg, ofs, frag); |
b7d6ed97 RH |
663 | } |
664 | ||
665 | symbolS * | |
74937d39 | 666 | symbol_temp_new_now (void) |
b7d6ed97 RH |
667 | { |
668 | return symbol_temp_new (now_seg, frag_now_fix (), frag_now); | |
669 | } | |
670 | ||
671 | symbolS * | |
74937d39 | 672 | symbol_temp_make (void) |
b7d6ed97 | 673 | { |
756d1d01 | 674 | return symbol_make (FAKE_LABEL_NAME); |
b7d6ed97 RH |
675 | } |
676 | ||
7c743825 KH |
677 | /* Implement symbol table lookup. |
678 | In: A symbol's name as a string: '\0' can't be part of a symbol name. | |
679 | Out: NULL if the name was not in the symbol table, else the address | |
680 | of a struct symbol associated with that name. */ | |
252b5132 | 681 | |
9758f3fc | 682 | symbolS * |
74937d39 | 683 | symbol_find_exact (const char *name) |
06e77878 AO |
684 | { |
685 | return symbol_find_exact_noref (name, 0); | |
686 | } | |
687 | ||
688 | symbolS * | |
689 | symbol_find_exact_noref (const char *name, int noref) | |
9758f3fc | 690 | { |
7be1c489 | 691 | struct local_symbol *locsym; |
06e77878 | 692 | symbolS* sym; |
9758f3fc | 693 | |
7be1c489 AM |
694 | locsym = (struct local_symbol *) hash_find (local_hash, name); |
695 | if (locsym != NULL) | |
696 | return (symbolS *) locsym; | |
9758f3fc | 697 | |
06e77878 AO |
698 | sym = ((symbolS *) hash_find (sy_hash, name)); |
699 | ||
700 | /* Any references to the symbol, except for the reference in | |
701 | .weakref, must clear this flag, such that the symbol does not | |
702 | turn into a weak symbol. Note that we don't have to handle the | |
703 | local_symbol case, since a weakrefd is always promoted out of the | |
704 | local_symbol table when it is turned into a weak symbol. */ | |
705 | if (sym && ! noref) | |
706 | S_CLEAR_WEAKREFD (sym); | |
707 | ||
708 | return sym; | |
9758f3fc AM |
709 | } |
710 | ||
252b5132 | 711 | symbolS * |
91c4c449 | 712 | symbol_find (const char *name) |
06e77878 AO |
713 | { |
714 | return symbol_find_noref (name, 0); | |
715 | } | |
716 | ||
717 | symbolS * | |
718 | symbol_find_noref (const char *name, int noref) | |
252b5132 | 719 | { |
252b5132 RH |
720 | #ifdef tc_canonicalize_symbol_name |
721 | { | |
722 | char *copy; | |
03987ced | 723 | size_t len = strlen (name) + 1; |
252b5132 | 724 | |
03987ced RH |
725 | copy = (char *) alloca (len); |
726 | memcpy (copy, name, len); | |
252b5132 RH |
727 | name = tc_canonicalize_symbol_name (copy); |
728 | } | |
729 | #endif | |
730 | ||
731 | if (! symbols_case_sensitive) | |
732 | { | |
03987ced RH |
733 | char *copy; |
734 | const char *orig; | |
735 | unsigned char c; | |
736 | ||
737 | orig = name; | |
738 | name = copy = (char *) alloca (strlen (name) + 1); | |
739 | ||
740 | while ((c = *orig++) != '\0') | |
741 | { | |
3882b010 | 742 | *copy++ = TOUPPER (c); |
03987ced RH |
743 | } |
744 | *copy = '\0'; | |
252b5132 RH |
745 | } |
746 | ||
06e77878 | 747 | return symbol_find_exact_noref (name, noref); |
252b5132 RH |
748 | } |
749 | ||
7c743825 KH |
750 | /* Once upon a time, symbols were kept in a singly linked list. At |
751 | least coff needs to be able to rearrange them from time to time, for | |
752 | which a doubly linked list is much more convenient. Loic did these | |
753 | as macros which seemed dangerous to me so they're now functions. | |
754 | xoxorich. */ | |
755 | ||
756 | /* Link symbol ADDME after symbol TARGET in the chain. */ | |
252b5132 | 757 | |
7c743825 | 758 | void |
74937d39 KH |
759 | symbol_append (symbolS *addme, symbolS *target, |
760 | symbolS **rootPP, symbolS **lastPP) | |
252b5132 | 761 | { |
49309057 ILT |
762 | if (LOCAL_SYMBOL_CHECK (addme)) |
763 | abort (); | |
764 | if (target != NULL && LOCAL_SYMBOL_CHECK (target)) | |
765 | abort (); | |
766 | ||
252b5132 RH |
767 | if (target == NULL) |
768 | { | |
769 | know (*rootPP == NULL); | |
770 | know (*lastPP == NULL); | |
771 | addme->sy_next = NULL; | |
252b5132 | 772 | addme->sy_previous = NULL; |
252b5132 RH |
773 | *rootPP = addme; |
774 | *lastPP = addme; | |
775 | return; | |
7c743825 | 776 | } /* if the list is empty */ |
252b5132 RH |
777 | |
778 | if (target->sy_next != NULL) | |
779 | { | |
252b5132 | 780 | target->sy_next->sy_previous = addme; |
252b5132 RH |
781 | } |
782 | else | |
783 | { | |
784 | know (*lastPP == target); | |
785 | *lastPP = addme; | |
7c743825 | 786 | } /* if we have a next */ |
252b5132 RH |
787 | |
788 | addme->sy_next = target->sy_next; | |
789 | target->sy_next = addme; | |
252b5132 | 790 | addme->sy_previous = target; |
252b5132 RH |
791 | |
792 | debug_verify_symchain (symbol_rootP, symbol_lastP); | |
793 | } | |
794 | ||
7c743825 KH |
795 | /* Set the chain pointers of SYMBOL to null. */ |
796 | ||
797 | void | |
74937d39 | 798 | symbol_clear_list_pointers (symbolS *symbolP) |
252b5132 | 799 | { |
49309057 ILT |
800 | if (LOCAL_SYMBOL_CHECK (symbolP)) |
801 | abort (); | |
252b5132 | 802 | symbolP->sy_next = NULL; |
252b5132 | 803 | symbolP->sy_previous = NULL; |
252b5132 RH |
804 | } |
805 | ||
7c743825 KH |
806 | /* Remove SYMBOLP from the list. */ |
807 | ||
808 | void | |
74937d39 | 809 | symbol_remove (symbolS *symbolP, symbolS **rootPP, symbolS **lastPP) |
252b5132 | 810 | { |
49309057 ILT |
811 | if (LOCAL_SYMBOL_CHECK (symbolP)) |
812 | abort (); | |
813 | ||
252b5132 RH |
814 | if (symbolP == *rootPP) |
815 | { | |
816 | *rootPP = symbolP->sy_next; | |
7c743825 | 817 | } /* if it was the root */ |
252b5132 RH |
818 | |
819 | if (symbolP == *lastPP) | |
820 | { | |
821 | *lastPP = symbolP->sy_previous; | |
7c743825 | 822 | } /* if it was the tail */ |
252b5132 RH |
823 | |
824 | if (symbolP->sy_next != NULL) | |
825 | { | |
826 | symbolP->sy_next->sy_previous = symbolP->sy_previous; | |
7c743825 | 827 | } /* if not last */ |
252b5132 RH |
828 | |
829 | if (symbolP->sy_previous != NULL) | |
830 | { | |
831 | symbolP->sy_previous->sy_next = symbolP->sy_next; | |
7c743825 | 832 | } /* if not first */ |
252b5132 RH |
833 | |
834 | debug_verify_symchain (*rootPP, *lastPP); | |
835 | } | |
836 | ||
7c743825 KH |
837 | /* Link symbol ADDME before symbol TARGET in the chain. */ |
838 | ||
839 | void | |
74937d39 KH |
840 | symbol_insert (symbolS *addme, symbolS *target, |
841 | symbolS **rootPP, symbolS **lastPP ATTRIBUTE_UNUSED) | |
252b5132 | 842 | { |
49309057 ILT |
843 | if (LOCAL_SYMBOL_CHECK (addme)) |
844 | abort (); | |
845 | if (LOCAL_SYMBOL_CHECK (target)) | |
846 | abort (); | |
847 | ||
252b5132 RH |
848 | if (target->sy_previous != NULL) |
849 | { | |
850 | target->sy_previous->sy_next = addme; | |
851 | } | |
852 | else | |
853 | { | |
854 | know (*rootPP == target); | |
855 | *rootPP = addme; | |
7c743825 | 856 | } /* if not first */ |
252b5132 RH |
857 | |
858 | addme->sy_previous = target->sy_previous; | |
859 | target->sy_previous = addme; | |
860 | addme->sy_next = target; | |
861 | ||
862 | debug_verify_symchain (*rootPP, *lastPP); | |
863 | } | |
864 | ||
7c743825 | 865 | void |
74937d39 | 866 | verify_symbol_chain (symbolS *rootP, symbolS *lastP) |
252b5132 RH |
867 | { |
868 | symbolS *symbolP = rootP; | |
869 | ||
870 | if (symbolP == NULL) | |
871 | return; | |
872 | ||
873 | for (; symbol_next (symbolP) != NULL; symbolP = symbol_next (symbolP)) | |
874 | { | |
49309057 | 875 | assert (symbolP->bsym != NULL); |
252b5132 | 876 | assert (symbolP->sy_next->sy_previous == symbolP); |
252b5132 RH |
877 | } |
878 | ||
879 | assert (lastP == symbolP); | |
880 | } | |
881 | ||
0909233e | 882 | static void |
74937d39 | 883 | report_op_error (symbolS *symp, symbolS *left, symbolS *right) |
0909233e AM |
884 | { |
885 | char *file; | |
886 | unsigned int line; | |
887 | segT seg_left = S_GET_SEGMENT (left); | |
888 | segT seg_right = right ? S_GET_SEGMENT (right) : 0; | |
1d3b2b27 | 889 | |
0909233e AM |
890 | if (expr_symbol_where (symp, &file, &line)) |
891 | { | |
892 | if (seg_left == undefined_section) | |
893 | as_bad_where (file, line, | |
894 | _("undefined symbol `%s' in operation"), | |
895 | S_GET_NAME (left)); | |
896 | if (seg_right == undefined_section) | |
897 | as_bad_where (file, line, | |
898 | _("undefined symbol `%s' in operation"), | |
899 | S_GET_NAME (right)); | |
900 | if (seg_left != undefined_section | |
901 | && seg_right != undefined_section) | |
902 | { | |
903 | if (right) | |
904 | as_bad_where (file, line, | |
905 | _("invalid sections for operation on `%s' and `%s'"), | |
906 | S_GET_NAME (left), S_GET_NAME (right)); | |
907 | else | |
908 | as_bad_where (file, line, | |
909 | _("invalid section for operation on `%s'"), | |
910 | S_GET_NAME (left)); | |
911 | } | |
1d3b2b27 | 912 | |
0909233e AM |
913 | } |
914 | else | |
915 | { | |
916 | if (seg_left == undefined_section) | |
917 | as_bad (_("undefined symbol `%s' in operation setting `%s'"), | |
918 | S_GET_NAME (left), S_GET_NAME (symp)); | |
919 | if (seg_right == undefined_section) | |
920 | as_bad (_("undefined symbol `%s' in operation setting `%s'"), | |
921 | S_GET_NAME (right), S_GET_NAME (symp)); | |
922 | if (seg_left != undefined_section | |
923 | && seg_right != undefined_section) | |
924 | { | |
925 | if (right) | |
d9e05e4e AM |
926 | as_bad (_("invalid sections for operation on `%s' and `%s' setting `%s'"), |
927 | S_GET_NAME (left), S_GET_NAME (right), S_GET_NAME (symp)); | |
0909233e | 928 | else |
d9e05e4e AM |
929 | as_bad (_("invalid section for operation on `%s' setting `%s'"), |
930 | S_GET_NAME (left), S_GET_NAME (symp)); | |
0909233e AM |
931 | } |
932 | } | |
933 | } | |
934 | ||
252b5132 RH |
935 | /* Resolve the value of a symbol. This is called during the final |
936 | pass over the symbol table to resolve any symbols with complex | |
937 | values. */ | |
938 | ||
939 | valueT | |
74937d39 | 940 | resolve_symbol_value (symbolS *symp) |
252b5132 RH |
941 | { |
942 | int resolved; | |
03e83a45 | 943 | valueT final_val = 0; |
252b5132 RH |
944 | segT final_seg; |
945 | ||
49309057 ILT |
946 | if (LOCAL_SYMBOL_CHECK (symp)) |
947 | { | |
948 | struct local_symbol *locsym = (struct local_symbol *) symp; | |
949 | ||
bd780143 | 950 | final_val = locsym->lsy_value; |
49309057 | 951 | if (local_symbol_resolved_p (locsym)) |
bd780143 | 952 | return final_val; |
49309057 | 953 | |
bd780143 | 954 | final_val += local_symbol_get_frag (locsym)->fr_address / OCTETS_PER_BYTE; |
49309057 | 955 | |
6386f3a7 | 956 | if (finalize_syms) |
49309057 | 957 | { |
bd780143 | 958 | locsym->lsy_value = final_val; |
49309057 ILT |
959 | local_symbol_mark_resolved (locsym); |
960 | } | |
961 | ||
962 | return final_val; | |
963 | } | |
964 | ||
252b5132 RH |
965 | if (symp->sy_resolved) |
966 | { | |
967 | if (symp->sy_value.X_op == O_constant) | |
968 | return (valueT) symp->sy_value.X_add_number; | |
969 | else | |
970 | return 0; | |
971 | } | |
972 | ||
973 | resolved = 0; | |
974 | final_seg = S_GET_SEGMENT (symp); | |
975 | ||
976 | if (symp->sy_resolving) | |
977 | { | |
6386f3a7 | 978 | if (finalize_syms) |
0e389e77 | 979 | as_bad (_("symbol definition loop encountered at `%s'"), |
7c743825 | 980 | S_GET_NAME (symp)); |
252b5132 RH |
981 | final_val = 0; |
982 | resolved = 1; | |
983 | } | |
984 | else | |
985 | { | |
986 | symbolS *add_symbol, *op_symbol; | |
987 | offsetT left, right; | |
988 | segT seg_left, seg_right; | |
989 | operatorT op; | |
2d034539 | 990 | int move_seg_ok; |
252b5132 RH |
991 | |
992 | symp->sy_resolving = 1; | |
993 | ||
994 | /* Help out with CSE. */ | |
995 | add_symbol = symp->sy_value.X_add_symbol; | |
996 | op_symbol = symp->sy_value.X_op_symbol; | |
997 | final_val = symp->sy_value.X_add_number; | |
998 | op = symp->sy_value.X_op; | |
999 | ||
1000 | switch (op) | |
1001 | { | |
1002 | default: | |
1003 | BAD_CASE (op); | |
1004 | break; | |
1005 | ||
1006 | case O_absent: | |
1007 | final_val = 0; | |
1008 | /* Fall through. */ | |
1009 | ||
1010 | case O_constant: | |
bea9907b | 1011 | final_val += symp->sy_frag->fr_address / OCTETS_PER_BYTE; |
252b5132 RH |
1012 | if (final_seg == expr_section) |
1013 | final_seg = absolute_section; | |
1014 | resolved = 1; | |
1015 | break; | |
1016 | ||
1017 | case O_symbol: | |
1018 | case O_symbol_rva: | |
6386f3a7 | 1019 | left = resolve_symbol_value (add_symbol); |
e0890092 AM |
1020 | seg_left = S_GET_SEGMENT (add_symbol); |
1021 | if (finalize_syms) | |
1022 | symp->sy_value.X_op_symbol = NULL; | |
252b5132 | 1023 | |
e0890092 | 1024 | do_symbol: |
06e77878 AO |
1025 | if (S_IS_WEAKREFR (symp)) |
1026 | { | |
1027 | assert (final_val == 0); | |
1028 | if (S_IS_WEAKREFR (add_symbol)) | |
1029 | { | |
1030 | assert (add_symbol->sy_value.X_op == O_symbol | |
1031 | && add_symbol->sy_value.X_add_number == 0); | |
1032 | add_symbol = add_symbol->sy_value.X_add_symbol; | |
1033 | assert (! S_IS_WEAKREFR (add_symbol)); | |
1034 | symp->sy_value.X_add_symbol = add_symbol; | |
1035 | } | |
1036 | } | |
1037 | ||
252b5132 RH |
1038 | if (symp->sy_mri_common) |
1039 | { | |
1040 | /* This is a symbol inside an MRI common section. The | |
e0890092 AM |
1041 | relocation routines are going to handle it specially. |
1042 | Don't change the value. */ | |
49309057 | 1043 | resolved = symbol_resolved_p (add_symbol); |
252b5132 RH |
1044 | break; |
1045 | } | |
1046 | ||
6386f3a7 | 1047 | if (finalize_syms && final_val == 0) |
49309057 ILT |
1048 | { |
1049 | if (LOCAL_SYMBOL_CHECK (add_symbol)) | |
1050 | add_symbol = local_symbol_convert ((struct local_symbol *) | |
1051 | add_symbol); | |
1052 | copy_symbol_attributes (symp, add_symbol); | |
1053 | } | |
252b5132 | 1054 | |
e0890092 AM |
1055 | /* If we have equated this symbol to an undefined or common |
1056 | symbol, keep X_op set to O_symbol, and don't change | |
1057 | X_add_number. This permits the routine which writes out | |
1058 | relocation to detect this case, and convert the | |
1059 | relocation to be against the symbol to which this symbol | |
1060 | is equated. */ | |
977cdf5a | 1061 | if (! S_IS_DEFINED (add_symbol) |
7be1c489 | 1062 | #if defined (OBJ_COFF) && defined (TE_PE) |
977cdf5a NC |
1063 | || S_IS_WEAK (add_symbol) |
1064 | #endif | |
1065 | || S_IS_COMMON (add_symbol)) | |
252b5132 | 1066 | { |
6386f3a7 | 1067 | if (finalize_syms) |
252b5132 | 1068 | { |
252b5132 RH |
1069 | symp->sy_value.X_op = O_symbol; |
1070 | symp->sy_value.X_add_symbol = add_symbol; | |
1071 | symp->sy_value.X_add_number = final_val; | |
e0890092 AM |
1072 | /* Use X_op_symbol as a flag. */ |
1073 | symp->sy_value.X_op_symbol = add_symbol; | |
1074 | final_seg = seg_left; | |
252b5132 RH |
1075 | } |
1076 | final_val = 0; | |
49309057 | 1077 | resolved = symbol_resolved_p (add_symbol); |
c89c8534 | 1078 | symp->sy_resolving = 0; |
252b5132 RH |
1079 | goto exit_dont_set_value; |
1080 | } | |
e0890092 AM |
1081 | else if (finalize_syms && final_seg == expr_section |
1082 | && seg_left != expr_section) | |
1083 | { | |
1084 | /* If the symbol is an expression symbol, do similarly | |
1085 | as for undefined and common syms above. Handles | |
1086 | "sym +/- expr" where "expr" cannot be evaluated | |
1087 | immediately, and we want relocations to be against | |
1088 | "sym", eg. because it is weak. */ | |
1089 | symp->sy_value.X_op = O_symbol; | |
1090 | symp->sy_value.X_add_symbol = add_symbol; | |
1091 | symp->sy_value.X_add_number = final_val; | |
1092 | symp->sy_value.X_op_symbol = add_symbol; | |
1093 | final_seg = seg_left; | |
1094 | final_val += symp->sy_frag->fr_address + left; | |
1095 | resolved = symbol_resolved_p (add_symbol); | |
1096 | symp->sy_resolving = 0; | |
1097 | goto exit_dont_set_value; | |
1098 | } | |
252b5132 RH |
1099 | else |
1100 | { | |
1101 | final_val += symp->sy_frag->fr_address + left; | |
1102 | if (final_seg == expr_section || final_seg == undefined_section) | |
e0890092 | 1103 | final_seg = seg_left; |
252b5132 RH |
1104 | } |
1105 | ||
49309057 | 1106 | resolved = symbol_resolved_p (add_symbol); |
06e77878 AO |
1107 | if (S_IS_WEAKREFR (symp)) |
1108 | goto exit_dont_set_value; | |
252b5132 RH |
1109 | break; |
1110 | ||
1111 | case O_uminus: | |
1112 | case O_bit_not: | |
1113 | case O_logical_not: | |
6386f3a7 | 1114 | left = resolve_symbol_value (add_symbol); |
784b640d | 1115 | seg_left = S_GET_SEGMENT (add_symbol); |
252b5132 | 1116 | |
0909233e AM |
1117 | /* By reducing these to the relevant dyadic operator, we get |
1118 | !S -> S == 0 permitted on anything, | |
1119 | -S -> 0 - S only permitted on absolute | |
1120 | ~S -> S ^ ~0 only permitted on absolute */ | |
1121 | if (op != O_logical_not && seg_left != absolute_section | |
1122 | && finalize_syms) | |
1123 | report_op_error (symp, add_symbol, NULL); | |
1d3b2b27 | 1124 | |
0909233e AM |
1125 | if (final_seg == expr_section || final_seg == undefined_section) |
1126 | final_seg = absolute_section; | |
1d3b2b27 | 1127 | |
252b5132 RH |
1128 | if (op == O_uminus) |
1129 | left = -left; | |
1130 | else if (op == O_logical_not) | |
1131 | left = !left; | |
1132 | else | |
1133 | left = ~left; | |
1134 | ||
1135 | final_val += left + symp->sy_frag->fr_address; | |
252b5132 | 1136 | |
49309057 | 1137 | resolved = symbol_resolved_p (add_symbol); |
252b5132 RH |
1138 | break; |
1139 | ||
1140 | case O_multiply: | |
1141 | case O_divide: | |
1142 | case O_modulus: | |
1143 | case O_left_shift: | |
1144 | case O_right_shift: | |
1145 | case O_bit_inclusive_or: | |
1146 | case O_bit_or_not: | |
1147 | case O_bit_exclusive_or: | |
1148 | case O_bit_and: | |
1149 | case O_add: | |
1150 | case O_subtract: | |
1151 | case O_eq: | |
1152 | case O_ne: | |
1153 | case O_lt: | |
1154 | case O_le: | |
1155 | case O_ge: | |
1156 | case O_gt: | |
1157 | case O_logical_and: | |
1158 | case O_logical_or: | |
6386f3a7 AM |
1159 | left = resolve_symbol_value (add_symbol); |
1160 | right = resolve_symbol_value (op_symbol); | |
252b5132 RH |
1161 | seg_left = S_GET_SEGMENT (add_symbol); |
1162 | seg_right = S_GET_SEGMENT (op_symbol); | |
1163 | ||
1164 | /* Simplify addition or subtraction of a constant by folding the | |
1165 | constant into X_add_number. */ | |
e0890092 | 1166 | if (op == O_add) |
252b5132 RH |
1167 | { |
1168 | if (seg_right == absolute_section) | |
1169 | { | |
e0890092 | 1170 | final_val += right; |
252b5132 RH |
1171 | goto do_symbol; |
1172 | } | |
e0890092 | 1173 | else if (seg_left == absolute_section) |
252b5132 | 1174 | { |
252b5132 RH |
1175 | final_val += left; |
1176 | add_symbol = op_symbol; | |
1177 | left = right; | |
e0890092 AM |
1178 | seg_left = seg_right; |
1179 | goto do_symbol; | |
1180 | } | |
1181 | } | |
1182 | else if (op == O_subtract) | |
1183 | { | |
1184 | if (seg_right == absolute_section) | |
1185 | { | |
1186 | final_val -= right; | |
252b5132 RH |
1187 | goto do_symbol; |
1188 | } | |
1189 | } | |
1190 | ||
2d034539 | 1191 | move_seg_ok = 1; |
e0890092 AM |
1192 | /* Equality and non-equality tests are permitted on anything. |
1193 | Subtraction, and other comparison operators are permitted if | |
1194 | both operands are in the same section. Otherwise, both | |
1195 | operands must be absolute. We already handled the case of | |
1196 | addition or subtraction of a constant above. This will | |
1197 | probably need to be changed for an object file format which | |
2d034539 NC |
1198 | supports arbitrary expressions, such as IEEE-695. */ |
1199 | if (!(seg_left == absolute_section | |
0909233e AM |
1200 | && seg_right == absolute_section) |
1201 | && !(op == O_eq || op == O_ne) | |
1202 | && !((op == O_subtract | |
1203 | || op == O_lt || op == O_le || op == O_ge || op == O_gt) | |
1204 | && seg_left == seg_right | |
1205 | && (seg_left != undefined_section | |
1206 | || add_symbol == op_symbol))) | |
2d034539 NC |
1207 | { |
1208 | /* Don't emit messages unless we're finalizing the symbol value, | |
1209 | otherwise we may get the same message multiple times. */ | |
1210 | if (finalize_syms) | |
1211 | report_op_error (symp, add_symbol, op_symbol); | |
1212 | /* However do not move the symbol into the absolute section | |
1213 | if it cannot currently be resolved - this would confuse | |
1214 | other parts of the assembler into believing that the | |
1215 | expression had been evaluated to zero. */ | |
1216 | else | |
1217 | move_seg_ok = 0; | |
1218 | } | |
1d3b2b27 | 1219 | |
2d034539 NC |
1220 | if (move_seg_ok |
1221 | && (final_seg == expr_section || final_seg == undefined_section)) | |
0909233e | 1222 | final_seg = absolute_section; |
252b5132 RH |
1223 | |
1224 | /* Check for division by zero. */ | |
1225 | if ((op == O_divide || op == O_modulus) && right == 0) | |
1226 | { | |
1227 | /* If seg_right is not absolute_section, then we've | |
e0890092 | 1228 | already issued a warning about using a bad symbol. */ |
6386f3a7 | 1229 | if (seg_right == absolute_section && finalize_syms) |
252b5132 RH |
1230 | { |
1231 | char *file; | |
1232 | unsigned int line; | |
1233 | ||
1234 | if (expr_symbol_where (symp, &file, &line)) | |
1235 | as_bad_where (file, line, _("division by zero")); | |
1236 | else | |
0e389e77 | 1237 | as_bad (_("division by zero when setting `%s'"), |
252b5132 RH |
1238 | S_GET_NAME (symp)); |
1239 | } | |
1240 | ||
1241 | right = 1; | |
1242 | } | |
1243 | ||
1244 | switch (symp->sy_value.X_op) | |
1245 | { | |
1246 | case O_multiply: left *= right; break; | |
1247 | case O_divide: left /= right; break; | |
1248 | case O_modulus: left %= right; break; | |
1249 | case O_left_shift: left <<= right; break; | |
1250 | case O_right_shift: left >>= right; break; | |
1251 | case O_bit_inclusive_or: left |= right; break; | |
1252 | case O_bit_or_not: left |= ~right; break; | |
1253 | case O_bit_exclusive_or: left ^= right; break; | |
1254 | case O_bit_and: left &= right; break; | |
1255 | case O_add: left += right; break; | |
1256 | case O_subtract: left -= right; break; | |
e0890092 AM |
1257 | case O_eq: |
1258 | case O_ne: | |
1259 | left = (left == right && seg_left == seg_right | |
1260 | && (seg_left != undefined_section | |
1261 | || add_symbol == op_symbol) | |
1262 | ? ~ (offsetT) 0 : 0); | |
1263 | if (symp->sy_value.X_op == O_ne) | |
1264 | left = ~left; | |
1265 | break; | |
252b5132 RH |
1266 | case O_lt: left = left < right ? ~ (offsetT) 0 : 0; break; |
1267 | case O_le: left = left <= right ? ~ (offsetT) 0 : 0; break; | |
1268 | case O_ge: left = left >= right ? ~ (offsetT) 0 : 0; break; | |
1269 | case O_gt: left = left > right ? ~ (offsetT) 0 : 0; break; | |
1270 | case O_logical_and: left = left && right; break; | |
1271 | case O_logical_or: left = left || right; break; | |
1272 | default: abort (); | |
1273 | } | |
1274 | ||
1275 | final_val += symp->sy_frag->fr_address + left; | |
1276 | if (final_seg == expr_section || final_seg == undefined_section) | |
784b640d AM |
1277 | { |
1278 | if (seg_left == undefined_section | |
1279 | || seg_right == undefined_section) | |
1280 | final_seg = undefined_section; | |
1281 | else if (seg_left == absolute_section) | |
1282 | final_seg = seg_right; | |
1283 | else | |
1284 | final_seg = seg_left; | |
1285 | } | |
49309057 ILT |
1286 | resolved = (symbol_resolved_p (add_symbol) |
1287 | && symbol_resolved_p (op_symbol)); | |
7c743825 | 1288 | break; |
252b5132 RH |
1289 | |
1290 | case O_register: | |
1291 | case O_big: | |
1292 | case O_illegal: | |
1293 | /* Give an error (below) if not in expr_section. We don't | |
1294 | want to worry about expr_section symbols, because they | |
1295 | are fictional (they are created as part of expression | |
1296 | resolution), and any problems may not actually mean | |
1297 | anything. */ | |
1298 | break; | |
1299 | } | |
1300 | ||
1301 | symp->sy_resolving = 0; | |
1302 | } | |
1303 | ||
6386f3a7 | 1304 | if (finalize_syms) |
05bdb37e | 1305 | S_SET_VALUE (symp, final_val); |
252b5132 | 1306 | |
05bdb37e AM |
1307 | exit_dont_set_value: |
1308 | /* Always set the segment, even if not finalizing the value. | |
1309 | The segment is used to determine whether a symbol is defined. */ | |
05bdb37e | 1310 | S_SET_SEGMENT (symp, final_seg); |
252b5132 | 1311 | |
252b5132 | 1312 | /* Don't worry if we can't resolve an expr_section symbol. */ |
6386f3a7 | 1313 | if (finalize_syms) |
252b5132 RH |
1314 | { |
1315 | if (resolved) | |
1316 | symp->sy_resolved = 1; | |
1317 | else if (S_GET_SEGMENT (symp) != expr_section) | |
1318 | { | |
0e389e77 | 1319 | as_bad (_("can't resolve value for symbol `%s'"), |
7c743825 | 1320 | S_GET_NAME (symp)); |
252b5132 RH |
1321 | symp->sy_resolved = 1; |
1322 | } | |
1323 | } | |
1324 | ||
1325 | return final_val; | |
1326 | } | |
1327 | ||
74937d39 | 1328 | static void resolve_local_symbol (const char *, PTR); |
49309057 ILT |
1329 | |
1330 | /* A static function passed to hash_traverse. */ | |
1331 | ||
1332 | static void | |
74937d39 | 1333 | resolve_local_symbol (const char *key ATTRIBUTE_UNUSED, PTR value) |
49309057 ILT |
1334 | { |
1335 | if (value != NULL) | |
6386f3a7 | 1336 | resolve_symbol_value (value); |
49309057 ILT |
1337 | } |
1338 | ||
49309057 ILT |
1339 | /* Resolve all local symbols. */ |
1340 | ||
1341 | void | |
74937d39 | 1342 | resolve_local_symbol_values (void) |
49309057 | 1343 | { |
49309057 | 1344 | hash_traverse (local_hash, resolve_local_symbol); |
49309057 ILT |
1345 | } |
1346 | ||
9497f5ac NC |
1347 | /* Obtain the current value of a symbol without changing any |
1348 | sub-expressions used. */ | |
1349 | ||
1350 | int | |
2e1e12b1 | 1351 | snapshot_symbol (symbolS **symbolPP, valueT *valueP, segT *segP, fragS **fragPP) |
9497f5ac | 1352 | { |
2e1e12b1 JB |
1353 | symbolS *symbolP = *symbolPP; |
1354 | ||
9497f5ac NC |
1355 | if (LOCAL_SYMBOL_CHECK (symbolP)) |
1356 | { | |
1357 | struct local_symbol *locsym = (struct local_symbol *) symbolP; | |
1358 | ||
1359 | *valueP = locsym->lsy_value; | |
1360 | *segP = locsym->lsy_section; | |
1361 | *fragPP = local_symbol_get_frag (locsym); | |
1362 | } | |
1363 | else | |
1364 | { | |
1365 | expressionS expr = symbolP->sy_value; | |
1366 | ||
1367 | if (!symbolP->sy_resolved && expr.X_op != O_illegal) | |
1368 | { | |
1369 | int resolved; | |
1370 | ||
1371 | if (symbolP->sy_resolving) | |
1372 | return 0; | |
1373 | symbolP->sy_resolving = 1; | |
1374 | resolved = resolve_expression (&expr); | |
1375 | symbolP->sy_resolving = 0; | |
1376 | if (!resolved) | |
1377 | return 0; | |
1378 | ||
1379 | switch (expr.X_op) | |
1380 | { | |
1381 | case O_constant: | |
1382 | case O_register: | |
2e1e12b1 | 1383 | if (!symbol_equated_p (symbolP)) |
9497f5ac NC |
1384 | break; |
1385 | /* Fall thru. */ | |
1386 | case O_symbol: | |
1387 | case O_symbol_rva: | |
1388 | symbolP = expr.X_add_symbol; | |
1389 | break; | |
1390 | default: | |
1391 | return 0; | |
1392 | } | |
1393 | } | |
1394 | ||
4dcb3903 L |
1395 | /* Never change a defined symbol. */ |
1396 | if (symbolP->bsym->section == undefined_section | |
1397 | || symbolP->bsym->section == expr_section) | |
1398 | *symbolPP = symbolP; | |
9497f5ac NC |
1399 | *valueP = expr.X_add_number; |
1400 | *segP = symbolP->bsym->section; | |
1401 | *fragPP = symbolP->sy_frag; | |
1402 | ||
1403 | if (*segP == expr_section) | |
1404 | switch (expr.X_op) | |
1405 | { | |
1406 | case O_constant: *segP = absolute_section; break; | |
1407 | case O_register: *segP = reg_section; break; | |
1408 | default: break; | |
1409 | } | |
1410 | } | |
1411 | ||
1412 | return 1; | |
1413 | } | |
1414 | ||
252b5132 RH |
1415 | /* Dollar labels look like a number followed by a dollar sign. Eg, "42$". |
1416 | They are *really* local. That is, they go out of scope whenever we see a | |
1417 | label that isn't local. Also, like fb labels, there can be multiple | |
1418 | instances of a dollar label. Therefor, we name encode each instance with | |
1419 | the instance number, keep a list of defined symbols separate from the real | |
1420 | symbol table, and we treat these buggers as a sparse array. */ | |
1421 | ||
1422 | static long *dollar_labels; | |
1423 | static long *dollar_label_instances; | |
1424 | static char *dollar_label_defines; | |
1425 | static unsigned long dollar_label_count; | |
1426 | static unsigned long dollar_label_max; | |
1427 | ||
7c743825 | 1428 | int |
74937d39 | 1429 | dollar_label_defined (long label) |
252b5132 RH |
1430 | { |
1431 | long *i; | |
1432 | ||
1433 | know ((dollar_labels != NULL) || (dollar_label_count == 0)); | |
1434 | ||
1435 | for (i = dollar_labels; i < dollar_labels + dollar_label_count; ++i) | |
1436 | if (*i == label) | |
1437 | return dollar_label_defines[i - dollar_labels]; | |
1438 | ||
7c743825 | 1439 | /* If we get here, label isn't defined. */ |
252b5132 | 1440 | return 0; |
7c743825 | 1441 | } |
252b5132 RH |
1442 | |
1443 | static long | |
74937d39 | 1444 | dollar_label_instance (long label) |
252b5132 RH |
1445 | { |
1446 | long *i; | |
1447 | ||
1448 | know ((dollar_labels != NULL) || (dollar_label_count == 0)); | |
1449 | ||
1450 | for (i = dollar_labels; i < dollar_labels + dollar_label_count; ++i) | |
1451 | if (*i == label) | |
1452 | return (dollar_label_instances[i - dollar_labels]); | |
1453 | ||
7c743825 KH |
1454 | /* If we get here, we haven't seen the label before. |
1455 | Therefore its instance count is zero. */ | |
252b5132 RH |
1456 | return 0; |
1457 | } | |
1458 | ||
7c743825 | 1459 | void |
74937d39 | 1460 | dollar_label_clear (void) |
252b5132 RH |
1461 | { |
1462 | memset (dollar_label_defines, '\0', (unsigned int) dollar_label_count); | |
1463 | } | |
1464 | ||
1465 | #define DOLLAR_LABEL_BUMP_BY 10 | |
1466 | ||
7c743825 | 1467 | void |
74937d39 | 1468 | define_dollar_label (long label) |
252b5132 RH |
1469 | { |
1470 | long *i; | |
1471 | ||
1472 | for (i = dollar_labels; i < dollar_labels + dollar_label_count; ++i) | |
1473 | if (*i == label) | |
1474 | { | |
1475 | ++dollar_label_instances[i - dollar_labels]; | |
1476 | dollar_label_defines[i - dollar_labels] = 1; | |
1477 | return; | |
1478 | } | |
1479 | ||
7c743825 | 1480 | /* If we get to here, we don't have label listed yet. */ |
252b5132 RH |
1481 | |
1482 | if (dollar_labels == NULL) | |
1483 | { | |
1484 | dollar_labels = (long *) xmalloc (DOLLAR_LABEL_BUMP_BY * sizeof (long)); | |
1485 | dollar_label_instances = (long *) xmalloc (DOLLAR_LABEL_BUMP_BY * sizeof (long)); | |
1486 | dollar_label_defines = xmalloc (DOLLAR_LABEL_BUMP_BY); | |
1487 | dollar_label_max = DOLLAR_LABEL_BUMP_BY; | |
1488 | dollar_label_count = 0; | |
1489 | } | |
1490 | else if (dollar_label_count == dollar_label_max) | |
1491 | { | |
1492 | dollar_label_max += DOLLAR_LABEL_BUMP_BY; | |
1493 | dollar_labels = (long *) xrealloc ((char *) dollar_labels, | |
1494 | dollar_label_max * sizeof (long)); | |
1495 | dollar_label_instances = (long *) xrealloc ((char *) dollar_label_instances, | |
1496 | dollar_label_max * sizeof (long)); | |
1497 | dollar_label_defines = xrealloc (dollar_label_defines, dollar_label_max); | |
7c743825 | 1498 | } /* if we needed to grow */ |
252b5132 RH |
1499 | |
1500 | dollar_labels[dollar_label_count] = label; | |
1501 | dollar_label_instances[dollar_label_count] = 1; | |
1502 | dollar_label_defines[dollar_label_count] = 1; | |
1503 | ++dollar_label_count; | |
1504 | } | |
1505 | ||
7c743825 KH |
1506 | /* Caller must copy returned name: we re-use the area for the next name. |
1507 | ||
1508 | The mth occurence of label n: is turned into the symbol "Ln^Am" | |
1509 | where n is the label number and m is the instance number. "L" makes | |
1510 | it a label discarded unless debugging and "^A"('\1') ensures no | |
1511 | ordinary symbol SHOULD get the same name as a local label | |
1512 | symbol. The first "4:" is "L4^A1" - the m numbers begin at 1. | |
1513 | ||
1514 | fb labels get the same treatment, except that ^B is used in place | |
1515 | of ^A. */ | |
1516 | ||
1517 | char * /* Return local label name. */ | |
74937d39 KH |
1518 | dollar_label_name (register long n, /* we just saw "n$:" : n a number. */ |
1519 | register int augend /* 0 for current instance, 1 for new instance. */) | |
252b5132 RH |
1520 | { |
1521 | long i; | |
7c743825 | 1522 | /* Returned to caller, then copied. Used for created names ("4f"). */ |
252b5132 RH |
1523 | static char symbol_name_build[24]; |
1524 | register char *p; | |
1525 | register char *q; | |
7c743825 | 1526 | char symbol_name_temporary[20]; /* Build up a number, BACKWARDS. */ |
252b5132 RH |
1527 | |
1528 | know (n >= 0); | |
1529 | know (augend == 0 || augend == 1); | |
1530 | p = symbol_name_build; | |
f84dd1f0 NC |
1531 | #ifdef LOCAL_LABEL_PREFIX |
1532 | *p++ = LOCAL_LABEL_PREFIX; | |
1533 | #endif | |
252b5132 RH |
1534 | *p++ = 'L'; |
1535 | ||
7c743825 KH |
1536 | /* Next code just does sprintf( {}, "%d", n); */ |
1537 | /* Label number. */ | |
252b5132 RH |
1538 | q = symbol_name_temporary; |
1539 | for (*q++ = 0, i = n; i; ++q) | |
1540 | { | |
1541 | *q = i % 10 + '0'; | |
1542 | i /= 10; | |
1543 | } | |
1544 | while ((*p = *--q) != '\0') | |
1545 | ++p; | |
1546 | ||
aa257fcd | 1547 | *p++ = DOLLAR_LABEL_CHAR; /* ^A */ |
252b5132 | 1548 | |
7c743825 | 1549 | /* Instance number. */ |
252b5132 RH |
1550 | q = symbol_name_temporary; |
1551 | for (*q++ = 0, i = dollar_label_instance (n) + augend; i; ++q) | |
1552 | { | |
1553 | *q = i % 10 + '0'; | |
1554 | i /= 10; | |
1555 | } | |
1556 | while ((*p++ = *--q) != '\0');; | |
1557 | ||
7c743825 | 1558 | /* The label, as a '\0' ended string, starts at symbol_name_build. */ |
252b5132 RH |
1559 | return symbol_name_build; |
1560 | } | |
1561 | ||
47eebc20 | 1562 | /* Somebody else's idea of local labels. They are made by "n:" where n |
7c743825 KH |
1563 | is any decimal digit. Refer to them with |
1564 | "nb" for previous (backward) n: | |
1565 | or "nf" for next (forward) n:. | |
1566 | ||
1567 | We do a little better and let n be any number, not just a single digit, but | |
1568 | since the other guy's assembler only does ten, we treat the first ten | |
1569 | specially. | |
1570 | ||
1571 | Like someone else's assembler, we have one set of local label counters for | |
1572 | entire assembly, not one set per (sub)segment like in most assemblers. This | |
1573 | implies that one can refer to a label in another segment, and indeed some | |
1574 | crufty compilers have done just that. | |
1575 | ||
1576 | Since there could be a LOT of these things, treat them as a sparse | |
1577 | array. */ | |
252b5132 RH |
1578 | |
1579 | #define FB_LABEL_SPECIAL (10) | |
1580 | ||
1581 | static long fb_low_counter[FB_LABEL_SPECIAL]; | |
1582 | static long *fb_labels; | |
1583 | static long *fb_label_instances; | |
1584 | static long fb_label_count; | |
1585 | static long fb_label_max; | |
1586 | ||
7c743825 | 1587 | /* This must be more than FB_LABEL_SPECIAL. */ |
252b5132 RH |
1588 | #define FB_LABEL_BUMP_BY (FB_LABEL_SPECIAL + 6) |
1589 | ||
7c743825 | 1590 | static void |
74937d39 | 1591 | fb_label_init (void) |
252b5132 RH |
1592 | { |
1593 | memset ((void *) fb_low_counter, '\0', sizeof (fb_low_counter)); | |
7c743825 | 1594 | } |
252b5132 | 1595 | |
7c743825 KH |
1596 | /* Add one to the instance number of this fb label. */ |
1597 | ||
1598 | void | |
74937d39 | 1599 | fb_label_instance_inc (long label) |
252b5132 RH |
1600 | { |
1601 | long *i; | |
1602 | ||
1603 | if (label < FB_LABEL_SPECIAL) | |
1604 | { | |
1605 | ++fb_low_counter[label]; | |
1606 | return; | |
1607 | } | |
1608 | ||
1609 | if (fb_labels != NULL) | |
1610 | { | |
1611 | for (i = fb_labels + FB_LABEL_SPECIAL; | |
1612 | i < fb_labels + fb_label_count; ++i) | |
1613 | { | |
1614 | if (*i == label) | |
1615 | { | |
1616 | ++fb_label_instances[i - fb_labels]; | |
1617 | return; | |
7c743825 KH |
1618 | } /* if we find it */ |
1619 | } /* for each existing label */ | |
252b5132 RH |
1620 | } |
1621 | ||
7c743825 | 1622 | /* If we get to here, we don't have label listed yet. */ |
252b5132 RH |
1623 | |
1624 | if (fb_labels == NULL) | |
1625 | { | |
1626 | fb_labels = (long *) xmalloc (FB_LABEL_BUMP_BY * sizeof (long)); | |
1627 | fb_label_instances = (long *) xmalloc (FB_LABEL_BUMP_BY * sizeof (long)); | |
1628 | fb_label_max = FB_LABEL_BUMP_BY; | |
1629 | fb_label_count = FB_LABEL_SPECIAL; | |
1630 | ||
1631 | } | |
1632 | else if (fb_label_count == fb_label_max) | |
1633 | { | |
1634 | fb_label_max += FB_LABEL_BUMP_BY; | |
1635 | fb_labels = (long *) xrealloc ((char *) fb_labels, | |
1636 | fb_label_max * sizeof (long)); | |
1637 | fb_label_instances = (long *) xrealloc ((char *) fb_label_instances, | |
1638 | fb_label_max * sizeof (long)); | |
7c743825 | 1639 | } /* if we needed to grow */ |
252b5132 RH |
1640 | |
1641 | fb_labels[fb_label_count] = label; | |
1642 | fb_label_instances[fb_label_count] = 1; | |
1643 | ++fb_label_count; | |
1644 | } | |
1645 | ||
7c743825 | 1646 | static long |
74937d39 | 1647 | fb_label_instance (long label) |
252b5132 RH |
1648 | { |
1649 | long *i; | |
1650 | ||
1651 | if (label < FB_LABEL_SPECIAL) | |
1652 | { | |
1653 | return (fb_low_counter[label]); | |
1654 | } | |
1655 | ||
1656 | if (fb_labels != NULL) | |
1657 | { | |
1658 | for (i = fb_labels + FB_LABEL_SPECIAL; | |
1659 | i < fb_labels + fb_label_count; ++i) | |
1660 | { | |
1661 | if (*i == label) | |
1662 | { | |
1663 | return (fb_label_instances[i - fb_labels]); | |
7c743825 KH |
1664 | } /* if we find it */ |
1665 | } /* for each existing label */ | |
252b5132 RH |
1666 | } |
1667 | ||
1668 | /* We didn't find the label, so this must be a reference to the | |
1669 | first instance. */ | |
1670 | return 0; | |
1671 | } | |
1672 | ||
7c743825 KH |
1673 | /* Caller must copy returned name: we re-use the area for the next name. |
1674 | ||
1675 | The mth occurence of label n: is turned into the symbol "Ln^Bm" | |
1676 | where n is the label number and m is the instance number. "L" makes | |
1677 | it a label discarded unless debugging and "^B"('\2') ensures no | |
1678 | ordinary symbol SHOULD get the same name as a local label | |
1679 | symbol. The first "4:" is "L4^B1" - the m numbers begin at 1. | |
1680 | ||
1681 | dollar labels get the same treatment, except that ^A is used in | |
1682 | place of ^B. */ | |
1683 | ||
1684 | char * /* Return local label name. */ | |
74937d39 KH |
1685 | fb_label_name (long n, /* We just saw "n:", "nf" or "nb" : n a number. */ |
1686 | long augend /* 0 for nb, 1 for n:, nf. */) | |
252b5132 RH |
1687 | { |
1688 | long i; | |
7c743825 | 1689 | /* Returned to caller, then copied. Used for created names ("4f"). */ |
252b5132 RH |
1690 | static char symbol_name_build[24]; |
1691 | register char *p; | |
1692 | register char *q; | |
7c743825 | 1693 | char symbol_name_temporary[20]; /* Build up a number, BACKWARDS. */ |
252b5132 RH |
1694 | |
1695 | know (n >= 0); | |
a76903bf | 1696 | #ifdef TC_MMIX |
71ba24a1 | 1697 | know ((unsigned long) augend <= 2 /* See mmix_fb_label. */); |
a76903bf | 1698 | #else |
71ba24a1 | 1699 | know ((unsigned long) augend <= 1); |
a76903bf | 1700 | #endif |
252b5132 | 1701 | p = symbol_name_build; |
aa257fcd NC |
1702 | #ifdef LOCAL_LABEL_PREFIX |
1703 | *p++ = LOCAL_LABEL_PREFIX; | |
1704 | #endif | |
252b5132 RH |
1705 | *p++ = 'L'; |
1706 | ||
7c743825 KH |
1707 | /* Next code just does sprintf( {}, "%d", n); */ |
1708 | /* Label number. */ | |
252b5132 RH |
1709 | q = symbol_name_temporary; |
1710 | for (*q++ = 0, i = n; i; ++q) | |
1711 | { | |
1712 | *q = i % 10 + '0'; | |
1713 | i /= 10; | |
1714 | } | |
1715 | while ((*p = *--q) != '\0') | |
1716 | ++p; | |
1717 | ||
aa257fcd | 1718 | *p++ = LOCAL_LABEL_CHAR; /* ^B */ |
252b5132 | 1719 | |
7c743825 | 1720 | /* Instance number. */ |
252b5132 RH |
1721 | q = symbol_name_temporary; |
1722 | for (*q++ = 0, i = fb_label_instance (n) + augend; i; ++q) | |
1723 | { | |
1724 | *q = i % 10 + '0'; | |
1725 | i /= 10; | |
1726 | } | |
1727 | while ((*p++ = *--q) != '\0');; | |
1728 | ||
7c743825 | 1729 | /* The label, as a '\0' ended string, starts at symbol_name_build. */ |
252b5132 | 1730 | return (symbol_name_build); |
7c743825 | 1731 | } |
252b5132 | 1732 | |
7c743825 KH |
1733 | /* Decode name that may have been generated by foo_label_name() above. |
1734 | If the name wasn't generated by foo_label_name(), then return it | |
1735 | unaltered. This is used for error messages. */ | |
252b5132 RH |
1736 | |
1737 | char * | |
74937d39 | 1738 | decode_local_label_name (char *s) |
252b5132 RH |
1739 | { |
1740 | char *p; | |
1741 | char *symbol_decode; | |
1742 | int label_number; | |
1743 | int instance_number; | |
1744 | char *type; | |
d95767bf | 1745 | const char *message_format; |
aa257fcd | 1746 | int index = 0; |
43ad3147 | 1747 | |
aa257fcd NC |
1748 | #ifdef LOCAL_LABEL_PREFIX |
1749 | if (s[index] == LOCAL_LABEL_PREFIX) | |
1750 | ++index; | |
1751 | #endif | |
43ad3147 | 1752 | |
aa257fcd | 1753 | if (s[index] != 'L') |
252b5132 RH |
1754 | return s; |
1755 | ||
3882b010 | 1756 | for (label_number = 0, p = s + index + 1; ISDIGIT (*p); ++p) |
252b5132 RH |
1757 | label_number = (10 * label_number) + *p - '0'; |
1758 | ||
aa257fcd | 1759 | if (*p == DOLLAR_LABEL_CHAR) |
252b5132 | 1760 | type = "dollar"; |
aa257fcd | 1761 | else if (*p == LOCAL_LABEL_CHAR) |
252b5132 RH |
1762 | type = "fb"; |
1763 | else | |
1764 | return s; | |
1765 | ||
3882b010 | 1766 | for (instance_number = 0, p++; ISDIGIT (*p); ++p) |
252b5132 RH |
1767 | instance_number = (10 * instance_number) + *p - '0'; |
1768 | ||
d95767bf | 1769 | message_format = _("\"%d\" (instance number %d of a %s label)"); |
252b5132 RH |
1770 | symbol_decode = obstack_alloc (¬es, strlen (message_format) + 30); |
1771 | sprintf (symbol_decode, message_format, label_number, instance_number, type); | |
1772 | ||
1773 | return symbol_decode; | |
1774 | } | |
1775 | ||
1776 | /* Get the value of a symbol. */ | |
1777 | ||
1778 | valueT | |
74937d39 | 1779 | S_GET_VALUE (symbolS *s) |
252b5132 | 1780 | { |
49309057 | 1781 | if (LOCAL_SYMBOL_CHECK (s)) |
ac62c346 | 1782 | return resolve_symbol_value (s); |
49309057 | 1783 | |
ac62c346 | 1784 | if (!s->sy_resolved) |
e46d99eb | 1785 | { |
6386f3a7 AM |
1786 | valueT val = resolve_symbol_value (s); |
1787 | if (!finalize_syms) | |
e46d99eb AM |
1788 | return val; |
1789 | } | |
06e77878 AO |
1790 | if (S_IS_WEAKREFR (s)) |
1791 | return S_GET_VALUE (s->sy_value.X_add_symbol); | |
1792 | ||
252b5132 RH |
1793 | if (s->sy_value.X_op != O_constant) |
1794 | { | |
252b5132 RH |
1795 | if (! s->sy_resolved |
1796 | || s->sy_value.X_op != O_symbol | |
1797 | || (S_IS_DEFINED (s) && ! S_IS_COMMON (s))) | |
0e389e77 | 1798 | as_bad (_("attempt to get value of unresolved symbol `%s'"), |
252b5132 | 1799 | S_GET_NAME (s)); |
252b5132 RH |
1800 | } |
1801 | return (valueT) s->sy_value.X_add_number; | |
1802 | } | |
1803 | ||
1804 | /* Set the value of a symbol. */ | |
1805 | ||
1806 | void | |
74937d39 | 1807 | S_SET_VALUE (symbolS *s, valueT val) |
252b5132 | 1808 | { |
49309057 ILT |
1809 | if (LOCAL_SYMBOL_CHECK (s)) |
1810 | { | |
bd780143 | 1811 | ((struct local_symbol *) s)->lsy_value = val; |
49309057 ILT |
1812 | return; |
1813 | } | |
1814 | ||
252b5132 RH |
1815 | s->sy_value.X_op = O_constant; |
1816 | s->sy_value.X_add_number = (offsetT) val; | |
1817 | s->sy_value.X_unsigned = 0; | |
06e77878 | 1818 | S_CLEAR_WEAKREFR (s); |
252b5132 RH |
1819 | } |
1820 | ||
1821 | void | |
74937d39 | 1822 | copy_symbol_attributes (symbolS *dest, symbolS *src) |
252b5132 | 1823 | { |
49309057 | 1824 | if (LOCAL_SYMBOL_CHECK (dest)) |
7f2f689c | 1825 | dest = local_symbol_convert ((struct local_symbol *) dest); |
49309057 | 1826 | if (LOCAL_SYMBOL_CHECK (src)) |
7f2f689c | 1827 | src = local_symbol_convert ((struct local_symbol *) src); |
49309057 | 1828 | |
252b5132 RH |
1829 | /* In an expression, transfer the settings of these flags. |
1830 | The user can override later, of course. */ | |
1831 | #define COPIED_SYMFLAGS (BSF_FUNCTION | BSF_OBJECT) | |
1832 | dest->bsym->flags |= src->bsym->flags & COPIED_SYMFLAGS; | |
252b5132 RH |
1833 | |
1834 | #ifdef OBJ_COPY_SYMBOL_ATTRIBUTES | |
1835 | OBJ_COPY_SYMBOL_ATTRIBUTES (dest, src); | |
1836 | #endif | |
1837 | } | |
1838 | ||
252b5132 | 1839 | int |
74937d39 | 1840 | S_IS_FUNCTION (symbolS *s) |
252b5132 | 1841 | { |
49309057 ILT |
1842 | flagword flags; |
1843 | ||
1844 | if (LOCAL_SYMBOL_CHECK (s)) | |
1845 | return 0; | |
1846 | ||
1847 | flags = s->bsym->flags; | |
252b5132 RH |
1848 | |
1849 | return (flags & BSF_FUNCTION) != 0; | |
1850 | } | |
1851 | ||
1852 | int | |
74937d39 | 1853 | S_IS_EXTERNAL (symbolS *s) |
252b5132 | 1854 | { |
49309057 ILT |
1855 | flagword flags; |
1856 | ||
1857 | if (LOCAL_SYMBOL_CHECK (s)) | |
1858 | return 0; | |
1859 | ||
1860 | flags = s->bsym->flags; | |
252b5132 | 1861 | |
7c743825 | 1862 | /* Sanity check. */ |
252b5132 RH |
1863 | if ((flags & BSF_LOCAL) && (flags & BSF_GLOBAL)) |
1864 | abort (); | |
1865 | ||
1866 | return (flags & BSF_GLOBAL) != 0; | |
1867 | } | |
1868 | ||
1869 | int | |
74937d39 | 1870 | S_IS_WEAK (symbolS *s) |
252b5132 | 1871 | { |
49309057 ILT |
1872 | if (LOCAL_SYMBOL_CHECK (s)) |
1873 | return 0; | |
06e77878 AO |
1874 | /* Conceptually, a weakrefr is weak if the referenced symbol is. We |
1875 | could probably handle a WEAKREFR as always weak though. E.g., if | |
1876 | the referenced symbol has lost its weak status, there's no reason | |
1877 | to keep handling the weakrefr as if it was weak. */ | |
1878 | if (S_IS_WEAKREFR (s)) | |
1879 | return S_IS_WEAK (s->sy_value.X_add_symbol); | |
252b5132 RH |
1880 | return (s->bsym->flags & BSF_WEAK) != 0; |
1881 | } | |
1882 | ||
06e77878 AO |
1883 | int |
1884 | S_IS_WEAKREFR (symbolS *s) | |
1885 | { | |
1886 | if (LOCAL_SYMBOL_CHECK (s)) | |
1887 | return 0; | |
1888 | return s->sy_weakrefr != 0; | |
1889 | } | |
1890 | ||
1891 | int | |
1892 | S_IS_WEAKREFD (symbolS *s) | |
1893 | { | |
1894 | if (LOCAL_SYMBOL_CHECK (s)) | |
1895 | return 0; | |
1896 | return s->sy_weakrefd != 0; | |
1897 | } | |
1898 | ||
252b5132 | 1899 | int |
74937d39 | 1900 | S_IS_COMMON (symbolS *s) |
252b5132 | 1901 | { |
49309057 ILT |
1902 | if (LOCAL_SYMBOL_CHECK (s)) |
1903 | return 0; | |
252b5132 RH |
1904 | return bfd_is_com_section (s->bsym->section); |
1905 | } | |
1906 | ||
1907 | int | |
74937d39 | 1908 | S_IS_DEFINED (symbolS *s) |
252b5132 | 1909 | { |
49309057 ILT |
1910 | if (LOCAL_SYMBOL_CHECK (s)) |
1911 | return ((struct local_symbol *) s)->lsy_section != undefined_section; | |
252b5132 RH |
1912 | return s->bsym->section != undefined_section; |
1913 | } | |
1914 | ||
a161fe53 AM |
1915 | |
1916 | #ifndef EXTERN_FORCE_RELOC | |
1917 | #define EXTERN_FORCE_RELOC IS_ELF | |
1918 | #endif | |
1919 | ||
1920 | /* Return true for symbols that should not be reduced to section | |
1921 | symbols or eliminated from expressions, because they may be | |
1922 | overridden by the linker. */ | |
1923 | int | |
74937d39 | 1924 | S_FORCE_RELOC (symbolS *s, int strict) |
a161fe53 AM |
1925 | { |
1926 | if (LOCAL_SYMBOL_CHECK (s)) | |
1927 | return ((struct local_symbol *) s)->lsy_section == undefined_section; | |
1928 | ||
ae6063d4 AM |
1929 | return ((strict |
1930 | && ((s->bsym->flags & BSF_WEAK) != 0 | |
1931 | || (EXTERN_FORCE_RELOC | |
1932 | && (s->bsym->flags & BSF_GLOBAL) != 0))) | |
a161fe53 AM |
1933 | || s->bsym->section == undefined_section |
1934 | || bfd_is_com_section (s->bsym->section)); | |
1935 | } | |
1936 | ||
252b5132 | 1937 | int |
74937d39 | 1938 | S_IS_DEBUG (symbolS *s) |
252b5132 | 1939 | { |
49309057 ILT |
1940 | if (LOCAL_SYMBOL_CHECK (s)) |
1941 | return 0; | |
252b5132 RH |
1942 | if (s->bsym->flags & BSF_DEBUGGING) |
1943 | return 1; | |
1944 | return 0; | |
1945 | } | |
1946 | ||
1947 | int | |
74937d39 | 1948 | S_IS_LOCAL (symbolS *s) |
252b5132 | 1949 | { |
49309057 | 1950 | flagword flags; |
252b5132 RH |
1951 | const char *name; |
1952 | ||
49309057 ILT |
1953 | if (LOCAL_SYMBOL_CHECK (s)) |
1954 | return 1; | |
1955 | ||
1956 | flags = s->bsym->flags; | |
1957 | ||
7c743825 | 1958 | /* Sanity check. */ |
252b5132 RH |
1959 | if ((flags & BSF_LOCAL) && (flags & BSF_GLOBAL)) |
1960 | abort (); | |
1961 | ||
1962 | if (bfd_get_section (s->bsym) == reg_section) | |
1963 | return 1; | |
1964 | ||
1965 | if (flag_strip_local_absolute | |
bb82af9f NC |
1966 | /* Keep BSF_FILE symbols in order to allow debuggers to identify |
1967 | the source file even when the object file is stripped. */ | |
1968 | && (flags & (BSF_GLOBAL | BSF_FILE)) == 0 | |
252b5132 RH |
1969 | && bfd_get_section (s->bsym) == absolute_section) |
1970 | return 1; | |
1971 | ||
1972 | name = S_GET_NAME (s); | |
1973 | return (name != NULL | |
1974 | && ! S_IS_DEBUG (s) | |
aa257fcd NC |
1975 | && (strchr (name, DOLLAR_LABEL_CHAR) |
1976 | || strchr (name, LOCAL_LABEL_CHAR) | |
252b5132 RH |
1977 | || (! flag_keep_locals |
1978 | && (bfd_is_local_label (stdoutput, s->bsym) | |
1979 | || (flag_mri | |
1980 | && name[0] == '?' | |
1981 | && name[1] == '?'))))); | |
1982 | } | |
1983 | ||
252b5132 | 1984 | int |
74937d39 | 1985 | S_IS_STABD (symbolS *s) |
252b5132 RH |
1986 | { |
1987 | return S_GET_NAME (s) == 0; | |
1988 | } | |
1989 | ||
9497f5ac NC |
1990 | int |
1991 | S_IS_VOLATILE (const symbolS *s) | |
1992 | { | |
1993 | if (LOCAL_SYMBOL_CHECK (s)) | |
1994 | return 0; | |
1995 | return s->sy_volatile; | |
1996 | } | |
1997 | ||
1998 | int | |
1999 | S_IS_FORWARD_REF (const symbolS *s) | |
2000 | { | |
2001 | if (LOCAL_SYMBOL_CHECK (s)) | |
2002 | return 0; | |
2003 | return s->sy_forward_ref; | |
2004 | } | |
2005 | ||
9758f3fc | 2006 | const char * |
74937d39 | 2007 | S_GET_NAME (symbolS *s) |
252b5132 | 2008 | { |
49309057 ILT |
2009 | if (LOCAL_SYMBOL_CHECK (s)) |
2010 | return ((struct local_symbol *) s)->lsy_name; | |
252b5132 RH |
2011 | return s->bsym->name; |
2012 | } | |
2013 | ||
2014 | segT | |
74937d39 | 2015 | S_GET_SEGMENT (symbolS *s) |
252b5132 | 2016 | { |
49309057 ILT |
2017 | if (LOCAL_SYMBOL_CHECK (s)) |
2018 | return ((struct local_symbol *) s)->lsy_section; | |
252b5132 RH |
2019 | return s->bsym->section; |
2020 | } | |
2021 | ||
2022 | void | |
74937d39 | 2023 | S_SET_SEGMENT (symbolS *s, segT seg) |
252b5132 RH |
2024 | { |
2025 | /* Don't reassign section symbols. The direct reason is to prevent seg | |
2026 | faults assigning back to const global symbols such as *ABS*, but it | |
2027 | shouldn't happen anyway. */ | |
2028 | ||
49309057 ILT |
2029 | if (LOCAL_SYMBOL_CHECK (s)) |
2030 | { | |
2031 | if (seg == reg_section) | |
2032 | s = local_symbol_convert ((struct local_symbol *) s); | |
2033 | else | |
2034 | { | |
2035 | ((struct local_symbol *) s)->lsy_section = seg; | |
2036 | return; | |
2037 | } | |
2038 | } | |
2039 | ||
252b5132 RH |
2040 | if (s->bsym->flags & BSF_SECTION_SYM) |
2041 | { | |
2042 | if (s->bsym->section != seg) | |
7c743825 | 2043 | abort (); |
252b5132 RH |
2044 | } |
2045 | else | |
2046 | s->bsym->section = seg; | |
2047 | } | |
2048 | ||
2049 | void | |
74937d39 | 2050 | S_SET_EXTERNAL (symbolS *s) |
252b5132 | 2051 | { |
49309057 ILT |
2052 | if (LOCAL_SYMBOL_CHECK (s)) |
2053 | s = local_symbol_convert ((struct local_symbol *) s); | |
252b5132 RH |
2054 | if ((s->bsym->flags & BSF_WEAK) != 0) |
2055 | { | |
2056 | /* Let .weak override .global. */ | |
2057 | return; | |
2058 | } | |
4d7c34bf NC |
2059 | if (s->bsym->flags & BSF_SECTION_SYM) |
2060 | { | |
2061 | char * file; | |
2062 | unsigned int line; | |
d1a6c242 | 2063 | |
4d7c34bf NC |
2064 | /* Do not reassign section symbols. */ |
2065 | as_where (& file, & line); | |
2066 | as_warn_where (file, line, | |
0e389e77 | 2067 | _("section symbols are already global")); |
4d7c34bf NC |
2068 | return; |
2069 | } | |
252b5132 | 2070 | s->bsym->flags |= BSF_GLOBAL; |
7c743825 | 2071 | s->bsym->flags &= ~(BSF_LOCAL | BSF_WEAK); |
977cdf5a NC |
2072 | |
2073 | #ifdef USE_UNIQUE | |
2074 | if (! an_external_name && S_GET_NAME(s)[0] != '.') | |
2075 | an_external_name = S_GET_NAME (s); | |
2076 | #endif | |
252b5132 RH |
2077 | } |
2078 | ||
2079 | void | |
74937d39 | 2080 | S_CLEAR_EXTERNAL (symbolS *s) |
252b5132 | 2081 | { |
49309057 ILT |
2082 | if (LOCAL_SYMBOL_CHECK (s)) |
2083 | return; | |
252b5132 RH |
2084 | if ((s->bsym->flags & BSF_WEAK) != 0) |
2085 | { | |
2086 | /* Let .weak override. */ | |
2087 | return; | |
2088 | } | |
2089 | s->bsym->flags |= BSF_LOCAL; | |
7c743825 | 2090 | s->bsym->flags &= ~(BSF_GLOBAL | BSF_WEAK); |
252b5132 RH |
2091 | } |
2092 | ||
2093 | void | |
74937d39 | 2094 | S_SET_WEAK (symbolS *s) |
252b5132 | 2095 | { |
49309057 ILT |
2096 | if (LOCAL_SYMBOL_CHECK (s)) |
2097 | s = local_symbol_convert ((struct local_symbol *) s); | |
06e77878 AO |
2098 | #ifdef obj_set_weak_hook |
2099 | obj_set_weak_hook (s); | |
2100 | #endif | |
252b5132 | 2101 | s->bsym->flags |= BSF_WEAK; |
7c743825 | 2102 | s->bsym->flags &= ~(BSF_GLOBAL | BSF_LOCAL); |
252b5132 RH |
2103 | } |
2104 | ||
06e77878 AO |
2105 | void |
2106 | S_SET_WEAKREFR (symbolS *s) | |
2107 | { | |
2108 | if (LOCAL_SYMBOL_CHECK (s)) | |
2109 | s = local_symbol_convert ((struct local_symbol *) s); | |
2110 | s->sy_weakrefr = 1; | |
2111 | /* If the alias was already used, make sure we mark the target as | |
2112 | used as well, otherwise it might be dropped from the symbol | |
2113 | table. This may have unintended side effects if the alias is | |
2114 | later redirected to another symbol, such as keeping the unused | |
2115 | previous target in the symbol table. Since it will be weak, it's | |
2116 | not a big deal. */ | |
2117 | if (s->sy_used) | |
2118 | symbol_mark_used (s->sy_value.X_add_symbol); | |
2119 | } | |
2120 | ||
2121 | void | |
2122 | S_CLEAR_WEAKREFR (symbolS *s) | |
2123 | { | |
2124 | if (LOCAL_SYMBOL_CHECK (s)) | |
2125 | return; | |
2126 | s->sy_weakrefr = 0; | |
2127 | } | |
2128 | ||
2129 | void | |
2130 | S_SET_WEAKREFD (symbolS *s) | |
2131 | { | |
2132 | if (LOCAL_SYMBOL_CHECK (s)) | |
2133 | s = local_symbol_convert ((struct local_symbol *) s); | |
2134 | s->sy_weakrefd = 1; | |
2135 | S_SET_WEAK (s); | |
2136 | } | |
2137 | ||
2138 | void | |
2139 | S_CLEAR_WEAKREFD (symbolS *s) | |
2140 | { | |
2141 | if (LOCAL_SYMBOL_CHECK (s)) | |
2142 | return; | |
2143 | if (s->sy_weakrefd) | |
2144 | { | |
2145 | s->sy_weakrefd = 0; | |
2146 | /* If a weakref target symbol is weak, then it was never | |
2147 | referenced directly before, not even in a .global directive, | |
2148 | so decay it to local. If it remains undefined, it will be | |
2149 | later turned into a global, like any other undefined | |
2150 | symbol. */ | |
2151 | if (s->bsym->flags & BSF_WEAK) | |
2152 | { | |
2153 | #ifdef obj_clear_weak_hook | |
2154 | obj_clear_weak_hook (s); | |
2155 | #endif | |
2156 | s->bsym->flags &= ~BSF_WEAK; | |
2157 | s->bsym->flags |= BSF_LOCAL; | |
2158 | } | |
2159 | } | |
2160 | } | |
2161 | ||
00f7efb6 | 2162 | void |
74937d39 | 2163 | S_SET_THREAD_LOCAL (symbolS *s) |
00f7efb6 JJ |
2164 | { |
2165 | if (LOCAL_SYMBOL_CHECK (s)) | |
2166 | s = local_symbol_convert ((struct local_symbol *) s); | |
2167 | if (bfd_is_com_section (s->bsym->section) | |
2168 | && (s->bsym->flags & BSF_THREAD_LOCAL) != 0) | |
2169 | return; | |
2170 | s->bsym->flags |= BSF_THREAD_LOCAL; | |
2171 | if ((s->bsym->flags & BSF_FUNCTION) != 0) | |
2172 | as_bad (_("Accessing function `%s' as thread-local object"), | |
2173 | S_GET_NAME (s)); | |
2174 | else if (! bfd_is_und_section (s->bsym->section) | |
2175 | && (s->bsym->section->flags & SEC_THREAD_LOCAL) == 0) | |
2176 | as_bad (_("Accessing `%s' as thread-local object"), | |
2177 | S_GET_NAME (s)); | |
2178 | } | |
2179 | ||
252b5132 | 2180 | void |
977cdf5a | 2181 | S_SET_NAME (symbolS *s, const char *name) |
252b5132 | 2182 | { |
49309057 ILT |
2183 | if (LOCAL_SYMBOL_CHECK (s)) |
2184 | { | |
2185 | ((struct local_symbol *) s)->lsy_name = name; | |
2186 | return; | |
2187 | } | |
252b5132 RH |
2188 | s->bsym->name = name; |
2189 | } | |
49309057 | 2190 | |
9497f5ac NC |
2191 | void |
2192 | S_SET_VOLATILE (symbolS *s) | |
2193 | { | |
2194 | if (LOCAL_SYMBOL_CHECK (s)) | |
2195 | s = local_symbol_convert ((struct local_symbol *) s); | |
2196 | s->sy_volatile = 1; | |
2197 | } | |
2198 | ||
92757bc9 JB |
2199 | void |
2200 | S_CLEAR_VOLATILE (symbolS *s) | |
2201 | { | |
2202 | if (!LOCAL_SYMBOL_CHECK (s)) | |
2203 | s->sy_volatile = 0; | |
2204 | } | |
2205 | ||
9497f5ac NC |
2206 | void |
2207 | S_SET_FORWARD_REF (symbolS *s) | |
2208 | { | |
2209 | if (LOCAL_SYMBOL_CHECK (s)) | |
2210 | s = local_symbol_convert ((struct local_symbol *) s); | |
2211 | s->sy_forward_ref = 1; | |
2212 | } | |
2213 | ||
49309057 ILT |
2214 | /* Return the previous symbol in a chain. */ |
2215 | ||
2216 | symbolS * | |
74937d39 | 2217 | symbol_previous (symbolS *s) |
49309057 ILT |
2218 | { |
2219 | if (LOCAL_SYMBOL_CHECK (s)) | |
2220 | abort (); | |
2221 | return s->sy_previous; | |
2222 | } | |
2223 | ||
49309057 ILT |
2224 | /* Return the next symbol in a chain. */ |
2225 | ||
2226 | symbolS * | |
74937d39 | 2227 | symbol_next (symbolS *s) |
49309057 ILT |
2228 | { |
2229 | if (LOCAL_SYMBOL_CHECK (s)) | |
2230 | abort (); | |
2231 | return s->sy_next; | |
2232 | } | |
2233 | ||
2234 | /* Return a pointer to the value of a symbol as an expression. */ | |
2235 | ||
2236 | expressionS * | |
74937d39 | 2237 | symbol_get_value_expression (symbolS *s) |
49309057 ILT |
2238 | { |
2239 | if (LOCAL_SYMBOL_CHECK (s)) | |
2240 | s = local_symbol_convert ((struct local_symbol *) s); | |
2241 | return &s->sy_value; | |
2242 | } | |
2243 | ||
2244 | /* Set the value of a symbol to an expression. */ | |
2245 | ||
2246 | void | |
74937d39 | 2247 | symbol_set_value_expression (symbolS *s, const expressionS *exp) |
49309057 ILT |
2248 | { |
2249 | if (LOCAL_SYMBOL_CHECK (s)) | |
2250 | s = local_symbol_convert ((struct local_symbol *) s); | |
2251 | s->sy_value = *exp; | |
06e77878 | 2252 | S_CLEAR_WEAKREFR (s); |
49309057 ILT |
2253 | } |
2254 | ||
be95a9c1 AM |
2255 | /* Return a pointer to the X_add_number component of a symbol. */ |
2256 | ||
514d955d | 2257 | offsetT * |
be95a9c1 AM |
2258 | symbol_X_add_number (symbolS *s) |
2259 | { | |
be95a9c1 | 2260 | if (LOCAL_SYMBOL_CHECK (s)) |
514d955d | 2261 | return (offsetT *) &((struct local_symbol *) s)->lsy_value; |
be95a9c1 | 2262 | |
514d955d | 2263 | return &s->sy_value.X_add_number; |
be95a9c1 AM |
2264 | } |
2265 | ||
b7d6ed97 RH |
2266 | /* Set the value of SYM to the current position in the current segment. */ |
2267 | ||
2268 | void | |
74937d39 | 2269 | symbol_set_value_now (symbolS *sym) |
b7d6ed97 RH |
2270 | { |
2271 | S_SET_SEGMENT (sym, now_seg); | |
2272 | S_SET_VALUE (sym, frag_now_fix ()); | |
2273 | symbol_set_frag (sym, frag_now); | |
2274 | } | |
2275 | ||
49309057 ILT |
2276 | /* Set the frag of a symbol. */ |
2277 | ||
2278 | void | |
74937d39 | 2279 | symbol_set_frag (symbolS *s, fragS *f) |
49309057 ILT |
2280 | { |
2281 | if (LOCAL_SYMBOL_CHECK (s)) | |
2282 | { | |
2283 | local_symbol_set_frag ((struct local_symbol *) s, f); | |
2284 | return; | |
2285 | } | |
2286 | s->sy_frag = f; | |
06e77878 | 2287 | S_CLEAR_WEAKREFR (s); |
49309057 ILT |
2288 | } |
2289 | ||
2290 | /* Return the frag of a symbol. */ | |
2291 | ||
2292 | fragS * | |
74937d39 | 2293 | symbol_get_frag (symbolS *s) |
49309057 ILT |
2294 | { |
2295 | if (LOCAL_SYMBOL_CHECK (s)) | |
2296 | return local_symbol_get_frag ((struct local_symbol *) s); | |
2297 | return s->sy_frag; | |
2298 | } | |
2299 | ||
2300 | /* Mark a symbol as having been used. */ | |
2301 | ||
2302 | void | |
74937d39 | 2303 | symbol_mark_used (symbolS *s) |
49309057 ILT |
2304 | { |
2305 | if (LOCAL_SYMBOL_CHECK (s)) | |
2306 | return; | |
2307 | s->sy_used = 1; | |
06e77878 AO |
2308 | if (S_IS_WEAKREFR (s)) |
2309 | symbol_mark_used (s->sy_value.X_add_symbol); | |
49309057 ILT |
2310 | } |
2311 | ||
2312 | /* Clear the mark of whether a symbol has been used. */ | |
2313 | ||
2314 | void | |
74937d39 | 2315 | symbol_clear_used (symbolS *s) |
49309057 ILT |
2316 | { |
2317 | if (LOCAL_SYMBOL_CHECK (s)) | |
2318 | s = local_symbol_convert ((struct local_symbol *) s); | |
2319 | s->sy_used = 0; | |
2320 | } | |
2321 | ||
2322 | /* Return whether a symbol has been used. */ | |
2323 | ||
2324 | int | |
74937d39 | 2325 | symbol_used_p (symbolS *s) |
49309057 ILT |
2326 | { |
2327 | if (LOCAL_SYMBOL_CHECK (s)) | |
2328 | return 1; | |
2329 | return s->sy_used; | |
2330 | } | |
2331 | ||
2332 | /* Mark a symbol as having been used in a reloc. */ | |
2333 | ||
2334 | void | |
74937d39 | 2335 | symbol_mark_used_in_reloc (symbolS *s) |
49309057 ILT |
2336 | { |
2337 | if (LOCAL_SYMBOL_CHECK (s)) | |
2338 | s = local_symbol_convert ((struct local_symbol *) s); | |
2339 | s->sy_used_in_reloc = 1; | |
2340 | } | |
2341 | ||
2342 | /* Clear the mark of whether a symbol has been used in a reloc. */ | |
2343 | ||
2344 | void | |
74937d39 | 2345 | symbol_clear_used_in_reloc (symbolS *s) |
49309057 ILT |
2346 | { |
2347 | if (LOCAL_SYMBOL_CHECK (s)) | |
2348 | return; | |
2349 | s->sy_used_in_reloc = 0; | |
2350 | } | |
2351 | ||
2352 | /* Return whether a symbol has been used in a reloc. */ | |
2353 | ||
2354 | int | |
74937d39 | 2355 | symbol_used_in_reloc_p (symbolS *s) |
49309057 ILT |
2356 | { |
2357 | if (LOCAL_SYMBOL_CHECK (s)) | |
2358 | return 0; | |
2359 | return s->sy_used_in_reloc; | |
2360 | } | |
2361 | ||
2362 | /* Mark a symbol as an MRI common symbol. */ | |
2363 | ||
2364 | void | |
74937d39 | 2365 | symbol_mark_mri_common (symbolS *s) |
49309057 ILT |
2366 | { |
2367 | if (LOCAL_SYMBOL_CHECK (s)) | |
2368 | s = local_symbol_convert ((struct local_symbol *) s); | |
2369 | s->sy_mri_common = 1; | |
2370 | } | |
2371 | ||
2372 | /* Clear the mark of whether a symbol is an MRI common symbol. */ | |
2373 | ||
2374 | void | |
74937d39 | 2375 | symbol_clear_mri_common (symbolS *s) |
49309057 ILT |
2376 | { |
2377 | if (LOCAL_SYMBOL_CHECK (s)) | |
2378 | return; | |
2379 | s->sy_mri_common = 0; | |
2380 | } | |
2381 | ||
2382 | /* Return whether a symbol is an MRI common symbol. */ | |
2383 | ||
2384 | int | |
74937d39 | 2385 | symbol_mri_common_p (symbolS *s) |
49309057 ILT |
2386 | { |
2387 | if (LOCAL_SYMBOL_CHECK (s)) | |
2388 | return 0; | |
2389 | return s->sy_mri_common; | |
2390 | } | |
2391 | ||
2392 | /* Mark a symbol as having been written. */ | |
2393 | ||
2394 | void | |
74937d39 | 2395 | symbol_mark_written (symbolS *s) |
49309057 ILT |
2396 | { |
2397 | if (LOCAL_SYMBOL_CHECK (s)) | |
2398 | return; | |
2399 | s->written = 1; | |
2400 | } | |
2401 | ||
2402 | /* Clear the mark of whether a symbol has been written. */ | |
2403 | ||
2404 | void | |
74937d39 | 2405 | symbol_clear_written (symbolS *s) |
49309057 ILT |
2406 | { |
2407 | if (LOCAL_SYMBOL_CHECK (s)) | |
2408 | return; | |
2409 | s->written = 0; | |
2410 | } | |
2411 | ||
2412 | /* Return whether a symbol has been written. */ | |
2413 | ||
2414 | int | |
74937d39 | 2415 | symbol_written_p (symbolS *s) |
49309057 ILT |
2416 | { |
2417 | if (LOCAL_SYMBOL_CHECK (s)) | |
2418 | return 0; | |
2419 | return s->written; | |
2420 | } | |
2421 | ||
2422 | /* Mark a symbol has having been resolved. */ | |
2423 | ||
2424 | void | |
74937d39 | 2425 | symbol_mark_resolved (symbolS *s) |
49309057 ILT |
2426 | { |
2427 | if (LOCAL_SYMBOL_CHECK (s)) | |
2428 | { | |
2429 | local_symbol_mark_resolved ((struct local_symbol *) s); | |
2430 | return; | |
2431 | } | |
2432 | s->sy_resolved = 1; | |
2433 | } | |
2434 | ||
2435 | /* Return whether a symbol has been resolved. */ | |
2436 | ||
2437 | int | |
74937d39 | 2438 | symbol_resolved_p (symbolS *s) |
49309057 ILT |
2439 | { |
2440 | if (LOCAL_SYMBOL_CHECK (s)) | |
2441 | return local_symbol_resolved_p ((struct local_symbol *) s); | |
2442 | return s->sy_resolved; | |
2443 | } | |
2444 | ||
2445 | /* Return whether a symbol is a section symbol. */ | |
2446 | ||
2447 | int | |
74937d39 | 2448 | symbol_section_p (symbolS *s ATTRIBUTE_UNUSED) |
49309057 ILT |
2449 | { |
2450 | if (LOCAL_SYMBOL_CHECK (s)) | |
2451 | return 0; | |
49309057 | 2452 | return (s->bsym->flags & BSF_SECTION_SYM) != 0; |
49309057 ILT |
2453 | } |
2454 | ||
2455 | /* Return whether a symbol is equated to another symbol. */ | |
2456 | ||
2457 | int | |
74937d39 | 2458 | symbol_equated_p (symbolS *s) |
49309057 ILT |
2459 | { |
2460 | if (LOCAL_SYMBOL_CHECK (s)) | |
2461 | return 0; | |
2462 | return s->sy_value.X_op == O_symbol; | |
2463 | } | |
2464 | ||
e0890092 AM |
2465 | /* Return whether a symbol is equated to another symbol, and should be |
2466 | treated specially when writing out relocs. */ | |
2467 | ||
2468 | int | |
74937d39 | 2469 | symbol_equated_reloc_p (symbolS *s) |
e0890092 AM |
2470 | { |
2471 | if (LOCAL_SYMBOL_CHECK (s)) | |
2472 | return 0; | |
2473 | /* X_op_symbol, normally not used for O_symbol, is set by | |
2474 | resolve_symbol_value to flag expression syms that have been | |
2475 | equated. */ | |
2476 | return (s->sy_value.X_op == O_symbol | |
7be1c489 | 2477 | #if defined (OBJ_COFF) && defined (TE_PE) |
977cdf5a NC |
2478 | && ! S_IS_WEAK (s) |
2479 | #endif | |
e0890092 AM |
2480 | && ((s->sy_resolved && s->sy_value.X_op_symbol != NULL) |
2481 | || ! S_IS_DEFINED (s) | |
2482 | || S_IS_COMMON (s))); | |
2483 | } | |
2484 | ||
49309057 ILT |
2485 | /* Return whether a symbol has a constant value. */ |
2486 | ||
2487 | int | |
74937d39 | 2488 | symbol_constant_p (symbolS *s) |
49309057 ILT |
2489 | { |
2490 | if (LOCAL_SYMBOL_CHECK (s)) | |
2491 | return 1; | |
2492 | return s->sy_value.X_op == O_constant; | |
2493 | } | |
2494 | ||
49309057 ILT |
2495 | /* Return the BFD symbol for a symbol. */ |
2496 | ||
2497 | asymbol * | |
74937d39 | 2498 | symbol_get_bfdsym (symbolS *s) |
49309057 ILT |
2499 | { |
2500 | if (LOCAL_SYMBOL_CHECK (s)) | |
2501 | s = local_symbol_convert ((struct local_symbol *) s); | |
2502 | return s->bsym; | |
2503 | } | |
2504 | ||
2505 | /* Set the BFD symbol for a symbol. */ | |
2506 | ||
2507 | void | |
74937d39 | 2508 | symbol_set_bfdsym (symbolS *s, asymbol *bsym) |
49309057 ILT |
2509 | { |
2510 | if (LOCAL_SYMBOL_CHECK (s)) | |
2511 | s = local_symbol_convert ((struct local_symbol *) s); | |
22fe14ad NC |
2512 | /* Usually, it is harmless to reset a symbol to a BFD section |
2513 | symbol. For example, obj_elf_change_section sets the BFD symbol | |
2514 | of an old symbol with the newly created section symbol. But when | |
2515 | we have multiple sections with the same name, the newly created | |
2516 | section may have the same name as an old section. We check if the | |
2517 | old symbol has been already marked as a section symbol before | |
2518 | resetting it. */ | |
2519 | if ((s->bsym->flags & BSF_SECTION_SYM) == 0) | |
2520 | s->bsym = bsym; | |
2521 | /* else XXX - What do we do now ? */ | |
49309057 ILT |
2522 | } |
2523 | ||
49309057 ILT |
2524 | #ifdef OBJ_SYMFIELD_TYPE |
2525 | ||
2526 | /* Get a pointer to the object format information for a symbol. */ | |
2527 | ||
2528 | OBJ_SYMFIELD_TYPE * | |
74937d39 | 2529 | symbol_get_obj (symbolS *s) |
49309057 ILT |
2530 | { |
2531 | if (LOCAL_SYMBOL_CHECK (s)) | |
2532 | s = local_symbol_convert ((struct local_symbol *) s); | |
2533 | return &s->sy_obj; | |
2534 | } | |
2535 | ||
2536 | /* Set the object format information for a symbol. */ | |
2537 | ||
2538 | void | |
74937d39 | 2539 | symbol_set_obj (symbolS *s, OBJ_SYMFIELD_TYPE *o) |
49309057 ILT |
2540 | { |
2541 | if (LOCAL_SYMBOL_CHECK (s)) | |
2542 | s = local_symbol_convert ((struct local_symbol *) s); | |
2543 | s->sy_obj = *o; | |
2544 | } | |
2545 | ||
2546 | #endif /* OBJ_SYMFIELD_TYPE */ | |
2547 | ||
2548 | #ifdef TC_SYMFIELD_TYPE | |
2549 | ||
2550 | /* Get a pointer to the processor information for a symbol. */ | |
2551 | ||
2552 | TC_SYMFIELD_TYPE * | |
74937d39 | 2553 | symbol_get_tc (symbolS *s) |
49309057 ILT |
2554 | { |
2555 | if (LOCAL_SYMBOL_CHECK (s)) | |
2556 | s = local_symbol_convert ((struct local_symbol *) s); | |
2557 | return &s->sy_tc; | |
2558 | } | |
2559 | ||
2560 | /* Set the processor information for a symbol. */ | |
2561 | ||
2562 | void | |
74937d39 | 2563 | symbol_set_tc (symbolS *s, TC_SYMFIELD_TYPE *o) |
49309057 ILT |
2564 | { |
2565 | if (LOCAL_SYMBOL_CHECK (s)) | |
2566 | s = local_symbol_convert ((struct local_symbol *) s); | |
2567 | s->sy_tc = *o; | |
2568 | } | |
2569 | ||
2570 | #endif /* TC_SYMFIELD_TYPE */ | |
2571 | ||
252b5132 | 2572 | void |
74937d39 | 2573 | symbol_begin (void) |
252b5132 RH |
2574 | { |
2575 | symbol_lastP = NULL; | |
7c743825 | 2576 | symbol_rootP = NULL; /* In case we have 0 symbols (!!) */ |
252b5132 | 2577 | sy_hash = hash_new (); |
49309057 | 2578 | local_hash = hash_new (); |
252b5132 RH |
2579 | |
2580 | memset ((char *) (&abs_symbol), '\0', sizeof (abs_symbol)); | |
252b5132 RH |
2581 | #if defined (EMIT_SECTION_SYMBOLS) || !defined (RELOC_REQUIRES_SYMBOL) |
2582 | abs_symbol.bsym = bfd_abs_section.symbol; | |
252b5132 RH |
2583 | #endif |
2584 | abs_symbol.sy_value.X_op = O_constant; | |
2585 | abs_symbol.sy_frag = &zero_address_frag; | |
2586 | ||
2587 | if (LOCAL_LABELS_FB) | |
2588 | fb_label_init (); | |
2589 | } | |
252b5132 RH |
2590 | \f |
2591 | int indent_level; | |
2592 | ||
2593 | /* Maximum indent level. | |
2594 | Available for modification inside a gdb session. */ | |
87c245cc | 2595 | static int max_indent_level = 8; |
252b5132 | 2596 | |
252b5132 | 2597 | void |
74937d39 | 2598 | print_symbol_value_1 (FILE *file, symbolS *sym) |
252b5132 RH |
2599 | { |
2600 | const char *name = S_GET_NAME (sym); | |
2601 | if (!name || !name[0]) | |
2602 | name = "(unnamed)"; | |
2603 | fprintf (file, "sym %lx %s", (unsigned long) sym, name); | |
49309057 ILT |
2604 | |
2605 | if (LOCAL_SYMBOL_CHECK (sym)) | |
2606 | { | |
2607 | struct local_symbol *locsym = (struct local_symbol *) sym; | |
2608 | if (local_symbol_get_frag (locsym) != &zero_address_frag | |
2609 | && local_symbol_get_frag (locsym) != NULL) | |
2610 | fprintf (file, " frag %lx", (long) local_symbol_get_frag (locsym)); | |
2611 | if (local_symbol_resolved_p (locsym)) | |
2612 | fprintf (file, " resolved"); | |
2613 | fprintf (file, " local"); | |
2614 | } | |
2615 | else | |
2616 | { | |
2617 | if (sym->sy_frag != &zero_address_frag) | |
2618 | fprintf (file, " frag %lx", (long) sym->sy_frag); | |
2619 | if (sym->written) | |
2620 | fprintf (file, " written"); | |
2621 | if (sym->sy_resolved) | |
2622 | fprintf (file, " resolved"); | |
2623 | else if (sym->sy_resolving) | |
2624 | fprintf (file, " resolving"); | |
2625 | if (sym->sy_used_in_reloc) | |
2626 | fprintf (file, " used-in-reloc"); | |
2627 | if (sym->sy_used) | |
2628 | fprintf (file, " used"); | |
2629 | if (S_IS_LOCAL (sym)) | |
2630 | fprintf (file, " local"); | |
e97b3f28 | 2631 | if (S_IS_EXTERNAL (sym)) |
49309057 | 2632 | fprintf (file, " extern"); |
06e77878 AO |
2633 | if (S_IS_WEAK (sym)) |
2634 | fprintf (file, " weak"); | |
49309057 ILT |
2635 | if (S_IS_DEBUG (sym)) |
2636 | fprintf (file, " debug"); | |
2637 | if (S_IS_DEFINED (sym)) | |
2638 | fprintf (file, " defined"); | |
2639 | } | |
06e77878 AO |
2640 | if (S_IS_WEAKREFR (sym)) |
2641 | fprintf (file, " weakrefr"); | |
2642 | if (S_IS_WEAKREFD (sym)) | |
2643 | fprintf (file, " weakrefd"); | |
252b5132 | 2644 | fprintf (file, " %s", segment_name (S_GET_SEGMENT (sym))); |
49309057 | 2645 | if (symbol_resolved_p (sym)) |
252b5132 RH |
2646 | { |
2647 | segT s = S_GET_SEGMENT (sym); | |
2648 | ||
2649 | if (s != undefined_section | |
411863a4 | 2650 | && s != expr_section) |
252b5132 RH |
2651 | fprintf (file, " %lx", (long) S_GET_VALUE (sym)); |
2652 | } | |
2653 | else if (indent_level < max_indent_level | |
2654 | && S_GET_SEGMENT (sym) != undefined_section) | |
2655 | { | |
2656 | indent_level++; | |
2657 | fprintf (file, "\n%*s<", indent_level * 4, ""); | |
49309057 ILT |
2658 | if (LOCAL_SYMBOL_CHECK (sym)) |
2659 | fprintf (file, "constant %lx", | |
bd780143 | 2660 | (long) ((struct local_symbol *) sym)->lsy_value); |
49309057 ILT |
2661 | else |
2662 | print_expr_1 (file, &sym->sy_value); | |
252b5132 RH |
2663 | fprintf (file, ">"); |
2664 | indent_level--; | |
2665 | } | |
2666 | fflush (file); | |
2667 | } | |
2668 | ||
2669 | void | |
74937d39 | 2670 | print_symbol_value (symbolS *sym) |
252b5132 RH |
2671 | { |
2672 | indent_level = 0; | |
2673 | print_symbol_value_1 (stderr, sym); | |
2674 | fprintf (stderr, "\n"); | |
2675 | } | |
2676 | ||
2677 | static void | |
74937d39 | 2678 | print_binary (FILE *file, const char *name, expressionS *exp) |
252b5132 RH |
2679 | { |
2680 | indent_level++; | |
2681 | fprintf (file, "%s\n%*s<", name, indent_level * 4, ""); | |
2682 | print_symbol_value_1 (file, exp->X_add_symbol); | |
2683 | fprintf (file, ">\n%*s<", indent_level * 4, ""); | |
2684 | print_symbol_value_1 (file, exp->X_op_symbol); | |
2685 | fprintf (file, ">"); | |
2686 | indent_level--; | |
2687 | } | |
2688 | ||
2689 | void | |
74937d39 | 2690 | print_expr_1 (FILE *file, expressionS *exp) |
252b5132 RH |
2691 | { |
2692 | fprintf (file, "expr %lx ", (long) exp); | |
2693 | switch (exp->X_op) | |
2694 | { | |
2695 | case O_illegal: | |
2696 | fprintf (file, "illegal"); | |
2697 | break; | |
2698 | case O_absent: | |
2699 | fprintf (file, "absent"); | |
2700 | break; | |
2701 | case O_constant: | |
2702 | fprintf (file, "constant %lx", (long) exp->X_add_number); | |
2703 | break; | |
2704 | case O_symbol: | |
2705 | indent_level++; | |
2706 | fprintf (file, "symbol\n%*s<", indent_level * 4, ""); | |
2707 | print_symbol_value_1 (file, exp->X_add_symbol); | |
2708 | fprintf (file, ">"); | |
2709 | maybe_print_addnum: | |
2710 | if (exp->X_add_number) | |
2711 | fprintf (file, "\n%*s%lx", indent_level * 4, "", | |
2712 | (long) exp->X_add_number); | |
2713 | indent_level--; | |
2714 | break; | |
2715 | case O_register: | |
2716 | fprintf (file, "register #%d", (int) exp->X_add_number); | |
2717 | break; | |
2718 | case O_big: | |
2719 | fprintf (file, "big"); | |
2720 | break; | |
2721 | case O_uminus: | |
2722 | fprintf (file, "uminus -<"); | |
2723 | indent_level++; | |
2724 | print_symbol_value_1 (file, exp->X_add_symbol); | |
2725 | fprintf (file, ">"); | |
2726 | goto maybe_print_addnum; | |
2727 | case O_bit_not: | |
2728 | fprintf (file, "bit_not"); | |
2729 | break; | |
2730 | case O_multiply: | |
2731 | print_binary (file, "multiply", exp); | |
2732 | break; | |
2733 | case O_divide: | |
2734 | print_binary (file, "divide", exp); | |
2735 | break; | |
2736 | case O_modulus: | |
2737 | print_binary (file, "modulus", exp); | |
2738 | break; | |
2739 | case O_left_shift: | |
2740 | print_binary (file, "lshift", exp); | |
2741 | break; | |
2742 | case O_right_shift: | |
2743 | print_binary (file, "rshift", exp); | |
2744 | break; | |
2745 | case O_bit_inclusive_or: | |
2746 | print_binary (file, "bit_ior", exp); | |
2747 | break; | |
2748 | case O_bit_exclusive_or: | |
2749 | print_binary (file, "bit_xor", exp); | |
2750 | break; | |
2751 | case O_bit_and: | |
2752 | print_binary (file, "bit_and", exp); | |
2753 | break; | |
2754 | case O_eq: | |
2755 | print_binary (file, "eq", exp); | |
2756 | break; | |
2757 | case O_ne: | |
2758 | print_binary (file, "ne", exp); | |
2759 | break; | |
2760 | case O_lt: | |
2761 | print_binary (file, "lt", exp); | |
2762 | break; | |
2763 | case O_le: | |
2764 | print_binary (file, "le", exp); | |
2765 | break; | |
2766 | case O_ge: | |
2767 | print_binary (file, "ge", exp); | |
2768 | break; | |
2769 | case O_gt: | |
2770 | print_binary (file, "gt", exp); | |
2771 | break; | |
2772 | case O_logical_and: | |
2773 | print_binary (file, "logical_and", exp); | |
2774 | break; | |
2775 | case O_logical_or: | |
2776 | print_binary (file, "logical_or", exp); | |
2777 | break; | |
2778 | case O_add: | |
2779 | indent_level++; | |
2780 | fprintf (file, "add\n%*s<", indent_level * 4, ""); | |
2781 | print_symbol_value_1 (file, exp->X_add_symbol); | |
2782 | fprintf (file, ">\n%*s<", indent_level * 4, ""); | |
2783 | print_symbol_value_1 (file, exp->X_op_symbol); | |
2784 | fprintf (file, ">"); | |
2785 | goto maybe_print_addnum; | |
2786 | case O_subtract: | |
2787 | indent_level++; | |
2788 | fprintf (file, "subtract\n%*s<", indent_level * 4, ""); | |
2789 | print_symbol_value_1 (file, exp->X_add_symbol); | |
2790 | fprintf (file, ">\n%*s<", indent_level * 4, ""); | |
2791 | print_symbol_value_1 (file, exp->X_op_symbol); | |
2792 | fprintf (file, ">"); | |
2793 | goto maybe_print_addnum; | |
2794 | default: | |
2795 | fprintf (file, "{unknown opcode %d}", (int) exp->X_op); | |
2796 | break; | |
2797 | } | |
2798 | fflush (stdout); | |
2799 | } | |
2800 | ||
2801 | void | |
74937d39 | 2802 | print_expr (expressionS *exp) |
252b5132 RH |
2803 | { |
2804 | print_expr_1 (stderr, exp); | |
2805 | fprintf (stderr, "\n"); | |
2806 | } | |
2807 | ||
2808 | void | |
74937d39 | 2809 | symbol_print_statistics (FILE *file) |
252b5132 RH |
2810 | { |
2811 | hash_print_statistics (file, "symbol table", sy_hash); | |
49309057 ILT |
2812 | hash_print_statistics (file, "mini local symbol table", local_hash); |
2813 | fprintf (file, "%lu mini local symbols created, %lu converted\n", | |
2814 | local_symbol_count, local_symbol_conversion_count); | |
252b5132 | 2815 | } |