Commit | Line | Data |
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ccefe4c4 TT |
1 | /* Partial symbol tables. |
2 | ||
0b302171 | 3 | Copyright (C) 2009-2012 Free Software Foundation, Inc. |
ccefe4c4 TT |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #include "defs.h" | |
21 | #include "symtab.h" | |
22 | #include "psympriv.h" | |
23 | #include "objfiles.h" | |
24 | #include "gdb_assert.h" | |
25 | #include "block.h" | |
26 | #include "filenames.h" | |
27 | #include "source.h" | |
28 | #include "addrmap.h" | |
29 | #include "gdbtypes.h" | |
30 | #include "bcache.h" | |
31 | #include "ui-out.h" | |
32 | #include "command.h" | |
33 | #include "readline/readline.h" | |
34 | #include "gdb_regex.h" | |
40658b94 | 35 | #include "dictionary.h" |
c00f8484 KS |
36 | #include "language.h" |
37 | #include "cp-support.h" | |
ccefe4c4 TT |
38 | |
39 | #ifndef DEV_TTY | |
40 | #define DEV_TTY "/dev/tty" | |
41 | #endif | |
42 | ||
710e1a31 SW |
43 | struct psymbol_bcache |
44 | { | |
45 | struct bcache *bcache; | |
46 | }; | |
47 | ||
ccefe4c4 TT |
48 | /* A fast way to get from a psymtab to its symtab (after the first time). */ |
49 | #define PSYMTAB_TO_SYMTAB(pst) \ | |
50 | ((pst) -> symtab != NULL ? (pst) -> symtab : psymtab_to_symtab (pst)) | |
51 | ||
40658b94 PH |
52 | static struct partial_symbol *match_partial_symbol (struct partial_symtab *, |
53 | int, | |
54 | const char *, domain_enum, | |
2edb89d3 JK |
55 | symbol_compare_ftype *, |
56 | symbol_compare_ftype *); | |
40658b94 | 57 | |
ccefe4c4 TT |
58 | static struct partial_symbol *lookup_partial_symbol (struct partial_symtab *, |
59 | const char *, int, | |
60 | domain_enum); | |
61 | ||
62 | static char *psymtab_to_fullname (struct partial_symtab *ps); | |
63 | ||
64 | static struct partial_symbol *find_pc_sect_psymbol (struct partial_symtab *, | |
65 | CORE_ADDR, | |
66 | struct obj_section *); | |
67 | ||
68 | static struct partial_symbol *fixup_psymbol_section (struct partial_symbol | |
69 | *psym, | |
70 | struct objfile *objfile); | |
71 | ||
72 | static struct symtab *psymtab_to_symtab (struct partial_symtab *pst); | |
73 | ||
b11896a5 TT |
74 | /* Ensure that the partial symbols for OBJFILE have been loaded. This |
75 | function always returns its argument, as a convenience. */ | |
76 | ||
77 | struct objfile * | |
78 | require_partial_symbols (struct objfile *objfile, int verbose) | |
79 | { | |
80 | if ((objfile->flags & OBJF_PSYMTABS_READ) == 0) | |
81 | { | |
82 | objfile->flags |= OBJF_PSYMTABS_READ; | |
83 | ||
84 | if (objfile->sf->sym_read_psymbols) | |
85 | { | |
86 | if (verbose) | |
87 | { | |
88 | printf_unfiltered (_("Reading symbols from %s..."), | |
89 | objfile->name); | |
90 | gdb_flush (gdb_stdout); | |
91 | } | |
92 | (*objfile->sf->sym_read_psymbols) (objfile); | |
93 | if (verbose) | |
94 | { | |
95 | if (!objfile_has_symbols (objfile)) | |
96 | { | |
97 | wrap_here (""); | |
98 | printf_unfiltered (_("(no debugging symbols found)...")); | |
99 | wrap_here (""); | |
100 | } | |
101 | ||
102 | printf_unfiltered (_("done.\n")); | |
103 | } | |
104 | } | |
105 | } | |
106 | ||
107 | return objfile; | |
108 | } | |
109 | ||
110 | /* Traverse all psymtabs in one objfile, requiring that the psymtabs | |
111 | be read in. */ | |
112 | ||
113 | #define ALL_OBJFILE_PSYMTABS_REQUIRED(objfile, p) \ | |
114 | for ((p) = require_partial_symbols (objfile, 1)->psymtabs; \ | |
115 | (p) != NULL; \ | |
116 | (p) = (p)->next) | |
117 | ||
118 | /* We want to make sure this file always requires psymtabs. */ | |
119 | ||
120 | #undef ALL_OBJFILE_PSYMTABS | |
121 | ||
122 | /* Traverse all psymtabs in all objfiles. */ | |
123 | ||
124 | #define ALL_PSYMTABS(objfile, p) \ | |
125 | ALL_OBJFILES (objfile) \ | |
126 | ALL_OBJFILE_PSYMTABS_REQUIRED (objfile, p) | |
127 | ||
f8eba3c6 TT |
128 | /* Helper function for partial_map_symtabs_matching_filename that |
129 | expands the symtabs and calls the iterator. */ | |
ccefe4c4 | 130 | |
f8eba3c6 TT |
131 | static int |
132 | partial_map_expand_apply (struct objfile *objfile, | |
133 | const char *name, | |
134 | const char *full_path, | |
135 | const char *real_path, | |
136 | struct partial_symtab *pst, | |
137 | int (*callback) (struct symtab *, void *), | |
138 | void *data) | |
139 | { | |
140 | struct symtab *last_made = objfile->symtabs; | |
141 | ||
142 | /* Don't visit already-expanded psymtabs. */ | |
143 | if (pst->readin) | |
144 | return 0; | |
145 | ||
146 | /* This may expand more than one symtab, and we want to iterate over | |
147 | all of them. */ | |
148 | psymtab_to_symtab (pst); | |
149 | ||
150 | return iterate_over_some_symtabs (name, full_path, real_path, callback, data, | |
151 | objfile->symtabs, last_made); | |
152 | } | |
153 | ||
154 | /* Implementation of the map_symtabs_matching_filename method. */ | |
155 | ||
156 | static int | |
157 | partial_map_symtabs_matching_filename (struct objfile *objfile, | |
158 | const char *name, | |
159 | const char *full_path, | |
160 | const char *real_path, | |
161 | int (*callback) (struct symtab *, | |
162 | void *), | |
163 | void *data) | |
ccefe4c4 TT |
164 | { |
165 | struct partial_symtab *pst; | |
c011a4f4 | 166 | const char *name_basename = lbasename (name); |
ccefe4c4 | 167 | |
b11896a5 | 168 | ALL_OBJFILE_PSYMTABS_REQUIRED (objfile, pst) |
ccefe4c4 TT |
169 | { |
170 | if (FILENAME_CMP (name, pst->filename) == 0) | |
171 | { | |
f8eba3c6 TT |
172 | if (partial_map_expand_apply (objfile, name, full_path, real_path, |
173 | pst, callback, data)) | |
174 | return 1; | |
ccefe4c4 TT |
175 | } |
176 | ||
c011a4f4 DE |
177 | /* Before we invoke realpath, which can get expensive when many |
178 | files are involved, do a quick comparison of the basenames. */ | |
179 | if (! basenames_may_differ | |
180 | && FILENAME_CMP (name_basename, lbasename (pst->filename)) != 0) | |
181 | continue; | |
182 | ||
ccefe4c4 TT |
183 | /* If the user gave us an absolute path, try to find the file in |
184 | this symtab and use its absolute path. */ | |
185 | if (full_path != NULL) | |
186 | { | |
187 | psymtab_to_fullname (pst); | |
188 | if (pst->fullname != NULL | |
189 | && FILENAME_CMP (full_path, pst->fullname) == 0) | |
190 | { | |
f8eba3c6 TT |
191 | if (partial_map_expand_apply (objfile, name, full_path, real_path, |
192 | pst, callback, data)) | |
193 | return 1; | |
ccefe4c4 TT |
194 | } |
195 | } | |
196 | ||
197 | if (real_path != NULL) | |
198 | { | |
199 | char *rp = NULL; | |
200 | psymtab_to_fullname (pst); | |
201 | if (pst->fullname != NULL) | |
202 | { | |
203 | rp = gdb_realpath (pst->fullname); | |
204 | make_cleanup (xfree, rp); | |
205 | } | |
206 | if (rp != NULL && FILENAME_CMP (real_path, rp) == 0) | |
207 | { | |
f8eba3c6 TT |
208 | if (partial_map_expand_apply (objfile, name, full_path, real_path, |
209 | pst, callback, data)) | |
210 | return 1; | |
ccefe4c4 TT |
211 | } |
212 | } | |
213 | } | |
214 | ||
0df8b418 | 215 | /* Now, search for a matching tail (only if name doesn't have any dirs). */ |
ccefe4c4 | 216 | |
c011a4f4 | 217 | if (name_basename == name) |
b11896a5 | 218 | ALL_OBJFILE_PSYMTABS_REQUIRED (objfile, pst) |
ccefe4c4 TT |
219 | { |
220 | if (FILENAME_CMP (lbasename (pst->filename), name) == 0) | |
f8eba3c6 TT |
221 | if (partial_map_expand_apply (objfile, name, full_path, real_path, pst, |
222 | callback, data)) | |
223 | return 1; | |
ccefe4c4 TT |
224 | } |
225 | ||
f8eba3c6 | 226 | return 0; |
ccefe4c4 TT |
227 | } |
228 | ||
229 | /* Find which partial symtab contains PC and SECTION starting at psymtab PST. | |
230 | We may find a different psymtab than PST. See FIND_PC_SECT_PSYMTAB. */ | |
231 | ||
232 | static struct partial_symtab * | |
233 | find_pc_sect_psymtab_closer (CORE_ADDR pc, struct obj_section *section, | |
234 | struct partial_symtab *pst, | |
235 | struct minimal_symbol *msymbol) | |
236 | { | |
237 | struct objfile *objfile = pst->objfile; | |
238 | struct partial_symtab *tpst; | |
239 | struct partial_symtab *best_pst = pst; | |
240 | CORE_ADDR best_addr = pst->textlow; | |
241 | ||
9750bca9 JK |
242 | gdb_assert (!pst->psymtabs_addrmap_supported); |
243 | ||
ccefe4c4 TT |
244 | /* An objfile that has its functions reordered might have |
245 | many partial symbol tables containing the PC, but | |
246 | we want the partial symbol table that contains the | |
247 | function containing the PC. */ | |
248 | if (!(objfile->flags & OBJF_REORDERED) && | |
0df8b418 | 249 | section == 0) /* Can't validate section this way. */ |
ccefe4c4 TT |
250 | return pst; |
251 | ||
252 | if (msymbol == NULL) | |
253 | return (pst); | |
254 | ||
255 | /* The code range of partial symtabs sometimes overlap, so, in | |
256 | the loop below, we need to check all partial symtabs and | |
0df8b418 | 257 | find the one that fits better for the given PC address. We |
ccefe4c4 TT |
258 | select the partial symtab that contains a symbol whose |
259 | address is closest to the PC address. By closest we mean | |
260 | that find_pc_sect_symbol returns the symbol with address | |
261 | that is closest and still less than the given PC. */ | |
262 | for (tpst = pst; tpst != NULL; tpst = tpst->next) | |
263 | { | |
264 | if (pc >= tpst->textlow && pc < tpst->texthigh) | |
265 | { | |
266 | struct partial_symbol *p; | |
267 | CORE_ADDR this_addr; | |
268 | ||
269 | /* NOTE: This assumes that every psymbol has a | |
270 | corresponding msymbol, which is not necessarily | |
271 | true; the debug info might be much richer than the | |
272 | object's symbol table. */ | |
273 | p = find_pc_sect_psymbol (tpst, pc, section); | |
274 | if (p != NULL | |
275 | && SYMBOL_VALUE_ADDRESS (p) | |
276 | == SYMBOL_VALUE_ADDRESS (msymbol)) | |
277 | return tpst; | |
278 | ||
279 | /* Also accept the textlow value of a psymtab as a | |
280 | "symbol", to provide some support for partial | |
281 | symbol tables with line information but no debug | |
282 | symbols (e.g. those produced by an assembler). */ | |
283 | if (p != NULL) | |
284 | this_addr = SYMBOL_VALUE_ADDRESS (p); | |
285 | else | |
286 | this_addr = tpst->textlow; | |
287 | ||
288 | /* Check whether it is closer than our current | |
289 | BEST_ADDR. Since this symbol address is | |
290 | necessarily lower or equal to PC, the symbol closer | |
291 | to PC is the symbol which address is the highest. | |
292 | This way we return the psymtab which contains such | |
0df8b418 | 293 | best match symbol. This can help in cases where the |
ccefe4c4 TT |
294 | symbol information/debuginfo is not complete, like |
295 | for instance on IRIX6 with gcc, where no debug info | |
0df8b418 MS |
296 | is emitted for statics. (See also the nodebug.exp |
297 | testcase.) */ | |
ccefe4c4 TT |
298 | if (this_addr > best_addr) |
299 | { | |
300 | best_addr = this_addr; | |
301 | best_pst = tpst; | |
302 | } | |
303 | } | |
304 | } | |
305 | return best_pst; | |
306 | } | |
307 | ||
308 | /* Find which partial symtab contains PC and SECTION. Return 0 if | |
309 | none. We return the psymtab that contains a symbol whose address | |
310 | exactly matches PC, or, if we cannot find an exact match, the | |
311 | psymtab that contains a symbol whose address is closest to PC. */ | |
312 | static struct partial_symtab * | |
313 | find_pc_sect_psymtab (struct objfile *objfile, CORE_ADDR pc, | |
314 | struct obj_section *section, | |
315 | struct minimal_symbol *msymbol) | |
316 | { | |
317 | struct partial_symtab *pst; | |
318 | ||
319 | /* Try just the PSYMTABS_ADDRMAP mapping first as it has better granularity | |
320 | than the later used TEXTLOW/TEXTHIGH one. */ | |
321 | ||
322 | if (objfile->psymtabs_addrmap != NULL) | |
323 | { | |
324 | pst = addrmap_find (objfile->psymtabs_addrmap, pc); | |
325 | if (pst != NULL) | |
326 | { | |
327 | /* FIXME: addrmaps currently do not handle overlayed sections, | |
328 | so fall back to the non-addrmap case if we're debugging | |
329 | overlays and the addrmap returned the wrong section. */ | |
330 | if (overlay_debugging && msymbol && section) | |
331 | { | |
332 | struct partial_symbol *p; | |
ad3bbd48 | 333 | |
ccefe4c4 TT |
334 | /* NOTE: This assumes that every psymbol has a |
335 | corresponding msymbol, which is not necessarily | |
336 | true; the debug info might be much richer than the | |
337 | object's symbol table. */ | |
338 | p = find_pc_sect_psymbol (pst, pc, section); | |
339 | if (!p | |
340 | || SYMBOL_VALUE_ADDRESS (p) | |
341 | != SYMBOL_VALUE_ADDRESS (msymbol)) | |
342 | goto next; | |
343 | } | |
344 | ||
345 | /* We do not try to call FIND_PC_SECT_PSYMTAB_CLOSER as | |
346 | PSYMTABS_ADDRMAP we used has already the best 1-byte | |
347 | granularity and FIND_PC_SECT_PSYMTAB_CLOSER may mislead us into | |
348 | a worse chosen section due to the TEXTLOW/TEXTHIGH ranges | |
349 | overlap. */ | |
350 | ||
351 | return pst; | |
352 | } | |
353 | } | |
354 | ||
355 | next: | |
356 | ||
357 | /* Existing PSYMTABS_ADDRMAP mapping is present even for PARTIAL_SYMTABs | |
358 | which still have no corresponding full SYMTABs read. But it is not | |
359 | present for non-DWARF2 debug infos not supporting PSYMTABS_ADDRMAP in GDB | |
360 | so far. */ | |
361 | ||
362 | /* Check even OBJFILE with non-zero PSYMTABS_ADDRMAP as only several of | |
363 | its CUs may be missing in PSYMTABS_ADDRMAP as they may be varying | |
364 | debug info type in single OBJFILE. */ | |
365 | ||
b11896a5 | 366 | ALL_OBJFILE_PSYMTABS_REQUIRED (objfile, pst) |
9750bca9 JK |
367 | if (!pst->psymtabs_addrmap_supported |
368 | && pc >= pst->textlow && pc < pst->texthigh) | |
ccefe4c4 TT |
369 | { |
370 | struct partial_symtab *best_pst; | |
371 | ||
372 | best_pst = find_pc_sect_psymtab_closer (pc, section, pst, msymbol); | |
373 | if (best_pst != NULL) | |
374 | return best_pst; | |
375 | } | |
376 | ||
377 | return NULL; | |
378 | } | |
379 | ||
380 | static struct symtab * | |
381 | find_pc_sect_symtab_from_partial (struct objfile *objfile, | |
382 | struct minimal_symbol *msymbol, | |
383 | CORE_ADDR pc, struct obj_section *section, | |
384 | int warn_if_readin) | |
385 | { | |
386 | struct partial_symtab *ps = find_pc_sect_psymtab (objfile, pc, section, | |
387 | msymbol); | |
388 | if (ps) | |
389 | { | |
390 | if (warn_if_readin && ps->readin) | |
391 | /* Might want to error() here (in case symtab is corrupt and | |
392 | will cause a core dump), but maybe we can successfully | |
393 | continue, so let's not. */ | |
394 | warning (_("\ | |
395 | (Internal error: pc %s in read in psymtab, but not in symtab.)\n"), | |
396 | paddress (get_objfile_arch (ps->objfile), pc)); | |
397 | return PSYMTAB_TO_SYMTAB (ps); | |
398 | } | |
399 | return NULL; | |
400 | } | |
401 | ||
402 | /* Find which partial symbol within a psymtab matches PC and SECTION. | |
403 | Return 0 if none. */ | |
404 | ||
405 | static struct partial_symbol * | |
406 | find_pc_sect_psymbol (struct partial_symtab *psymtab, CORE_ADDR pc, | |
407 | struct obj_section *section) | |
408 | { | |
409 | struct partial_symbol *best = NULL, *p, **pp; | |
410 | CORE_ADDR best_pc; | |
411 | ||
412 | gdb_assert (psymtab != NULL); | |
413 | ||
0df8b418 | 414 | /* Cope with programs that start at address 0. */ |
ccefe4c4 TT |
415 | best_pc = (psymtab->textlow != 0) ? psymtab->textlow - 1 : 0; |
416 | ||
417 | /* Search the global symbols as well as the static symbols, so that | |
418 | find_pc_partial_function doesn't use a minimal symbol and thus | |
419 | cache a bad endaddr. */ | |
420 | for (pp = psymtab->objfile->global_psymbols.list + psymtab->globals_offset; | |
421 | (pp - (psymtab->objfile->global_psymbols.list + psymtab->globals_offset) | |
422 | < psymtab->n_global_syms); | |
423 | pp++) | |
424 | { | |
425 | p = *pp; | |
426 | if (SYMBOL_DOMAIN (p) == VAR_DOMAIN | |
427 | && SYMBOL_CLASS (p) == LOC_BLOCK | |
428 | && pc >= SYMBOL_VALUE_ADDRESS (p) | |
429 | && (SYMBOL_VALUE_ADDRESS (p) > best_pc | |
430 | || (psymtab->textlow == 0 | |
431 | && best_pc == 0 && SYMBOL_VALUE_ADDRESS (p) == 0))) | |
432 | { | |
0df8b418 | 433 | if (section) /* Match on a specific section. */ |
ccefe4c4 TT |
434 | { |
435 | fixup_psymbol_section (p, psymtab->objfile); | |
436 | if (!matching_obj_sections (SYMBOL_OBJ_SECTION (p), section)) | |
437 | continue; | |
438 | } | |
439 | best_pc = SYMBOL_VALUE_ADDRESS (p); | |
440 | best = p; | |
441 | } | |
442 | } | |
443 | ||
444 | for (pp = psymtab->objfile->static_psymbols.list + psymtab->statics_offset; | |
445 | (pp - (psymtab->objfile->static_psymbols.list + psymtab->statics_offset) | |
446 | < psymtab->n_static_syms); | |
447 | pp++) | |
448 | { | |
449 | p = *pp; | |
450 | if (SYMBOL_DOMAIN (p) == VAR_DOMAIN | |
451 | && SYMBOL_CLASS (p) == LOC_BLOCK | |
452 | && pc >= SYMBOL_VALUE_ADDRESS (p) | |
453 | && (SYMBOL_VALUE_ADDRESS (p) > best_pc | |
454 | || (psymtab->textlow == 0 | |
455 | && best_pc == 0 && SYMBOL_VALUE_ADDRESS (p) == 0))) | |
456 | { | |
0df8b418 | 457 | if (section) /* Match on a specific section. */ |
ccefe4c4 TT |
458 | { |
459 | fixup_psymbol_section (p, psymtab->objfile); | |
460 | if (!matching_obj_sections (SYMBOL_OBJ_SECTION (p), section)) | |
461 | continue; | |
462 | } | |
463 | best_pc = SYMBOL_VALUE_ADDRESS (p); | |
464 | best = p; | |
465 | } | |
466 | } | |
467 | ||
468 | return best; | |
469 | } | |
470 | ||
471 | static struct partial_symbol * | |
472 | fixup_psymbol_section (struct partial_symbol *psym, struct objfile *objfile) | |
473 | { | |
474 | CORE_ADDR addr; | |
475 | ||
476 | if (!psym) | |
477 | return NULL; | |
478 | ||
479 | if (SYMBOL_OBJ_SECTION (psym)) | |
480 | return psym; | |
481 | ||
482 | gdb_assert (objfile); | |
483 | ||
484 | switch (SYMBOL_CLASS (psym)) | |
485 | { | |
486 | case LOC_STATIC: | |
487 | case LOC_LABEL: | |
488 | case LOC_BLOCK: | |
489 | addr = SYMBOL_VALUE_ADDRESS (psym); | |
490 | break; | |
491 | default: | |
492 | /* Nothing else will be listed in the minsyms -- no use looking | |
493 | it up. */ | |
494 | return psym; | |
495 | } | |
496 | ||
497 | fixup_section (&psym->ginfo, addr, objfile); | |
498 | ||
499 | return psym; | |
500 | } | |
501 | ||
502 | static struct symtab * | |
503 | lookup_symbol_aux_psymtabs (struct objfile *objfile, | |
504 | int block_index, const char *name, | |
505 | const domain_enum domain) | |
506 | { | |
507 | struct partial_symtab *ps; | |
508 | const int psymtab_index = (block_index == GLOBAL_BLOCK ? 1 : 0); | |
509 | ||
b11896a5 | 510 | ALL_OBJFILE_PSYMTABS_REQUIRED (objfile, ps) |
ccefe4c4 TT |
511 | { |
512 | if (!ps->readin && lookup_partial_symbol (ps, name, psymtab_index, domain)) | |
c00f8484 KS |
513 | { |
514 | struct symbol *sym = NULL; | |
515 | struct symtab *stab = PSYMTAB_TO_SYMTAB (ps); | |
516 | ||
517 | /* Some caution must be observed with overloaded functions | |
518 | and methods, since the psymtab will not contain any overload | |
519 | information (but NAME might contain it). */ | |
520 | if (stab->primary) | |
521 | { | |
522 | struct blockvector *bv = BLOCKVECTOR (stab); | |
523 | struct block *block = BLOCKVECTOR_BLOCK (bv, block_index); | |
524 | ||
525 | sym = lookup_block_symbol (block, name, domain); | |
526 | } | |
527 | ||
528 | if (sym && strcmp_iw (SYMBOL_SEARCH_NAME (sym), name) == 0) | |
529 | return stab; | |
530 | ||
531 | /* Keep looking through other psymtabs. */ | |
532 | } | |
ccefe4c4 TT |
533 | } |
534 | ||
535 | return NULL; | |
536 | } | |
537 | ||
40658b94 PH |
538 | /* Look in PST for a symbol in DOMAIN whose name matches NAME. Search |
539 | the global block of PST if GLOBAL, and otherwise the static block. | |
540 | MATCH is the comparison operation that returns true iff MATCH (s, | |
541 | NAME), where s is a SYMBOL_SEARCH_NAME. If ORDERED_COMPARE is | |
542 | non-null, the symbols in the block are assumed to be ordered | |
543 | according to it (allowing binary search). It must be compatible | |
544 | with MATCH. Returns the symbol, if found, and otherwise NULL. */ | |
545 | ||
546 | static struct partial_symbol * | |
547 | match_partial_symbol (struct partial_symtab *pst, int global, | |
548 | const char *name, domain_enum domain, | |
2edb89d3 JK |
549 | symbol_compare_ftype *match, |
550 | symbol_compare_ftype *ordered_compare) | |
40658b94 PH |
551 | { |
552 | struct partial_symbol **start, **psym; | |
553 | struct partial_symbol **top, **real_top, **bottom, **center; | |
554 | int length = (global ? pst->n_global_syms : pst->n_static_syms); | |
555 | int do_linear_search = 1; | |
556 | ||
557 | if (length == 0) | |
558 | return NULL; | |
559 | start = (global ? | |
560 | pst->objfile->global_psymbols.list + pst->globals_offset : | |
561 | pst->objfile->static_psymbols.list + pst->statics_offset); | |
562 | ||
563 | if (global && ordered_compare) /* Can use a binary search. */ | |
564 | { | |
565 | do_linear_search = 0; | |
566 | ||
567 | /* Binary search. This search is guaranteed to end with center | |
568 | pointing at the earliest partial symbol whose name might be | |
569 | correct. At that point *all* partial symbols with an | |
570 | appropriate name will be checked against the correct | |
571 | domain. */ | |
572 | ||
573 | bottom = start; | |
574 | top = start + length - 1; | |
575 | real_top = top; | |
576 | while (top > bottom) | |
577 | { | |
578 | center = bottom + (top - bottom) / 2; | |
579 | gdb_assert (center < top); | |
580 | if (!do_linear_search | |
581 | && (SYMBOL_LANGUAGE (*center) == language_java)) | |
582 | do_linear_search = 1; | |
583 | if (ordered_compare (SYMBOL_SEARCH_NAME (*center), name) >= 0) | |
584 | top = center; | |
585 | else | |
586 | bottom = center + 1; | |
587 | } | |
588 | gdb_assert (top == bottom); | |
589 | ||
590 | while (top <= real_top | |
591 | && match (SYMBOL_SEARCH_NAME (*top), name) == 0) | |
592 | { | |
593 | if (symbol_matches_domain (SYMBOL_LANGUAGE (*top), | |
594 | SYMBOL_DOMAIN (*top), domain)) | |
595 | return *top; | |
596 | top++; | |
597 | } | |
598 | } | |
599 | ||
600 | /* Can't use a binary search or else we found during the binary search that | |
601 | we should also do a linear search. */ | |
602 | ||
603 | if (do_linear_search) | |
604 | { | |
605 | for (psym = start; psym < start + length; psym++) | |
606 | { | |
607 | if (symbol_matches_domain (SYMBOL_LANGUAGE (*psym), | |
608 | SYMBOL_DOMAIN (*psym), domain) | |
609 | && match (SYMBOL_SEARCH_NAME (*psym), name) == 0) | |
610 | return *psym; | |
611 | } | |
612 | } | |
613 | ||
614 | return NULL; | |
615 | } | |
616 | ||
774b6a14 TT |
617 | static void |
618 | pre_expand_symtabs_matching_psymtabs (struct objfile *objfile, | |
8903c50d TT |
619 | enum block_enum block_kind, |
620 | const char *name, | |
774b6a14 | 621 | domain_enum domain) |
58b6ab13 | 622 | { |
774b6a14 | 623 | /* Nothing. */ |
58b6ab13 TT |
624 | } |
625 | ||
c00f8484 KS |
626 | /* Returns the name used to search psymtabs. Unlike symtabs, psymtabs do |
627 | not contain any method/function instance information (since this would | |
628 | force reading type information while reading psymtabs). Therefore, | |
629 | if NAME contains overload information, it must be stripped before searching | |
630 | psymtabs. | |
631 | ||
632 | The caller is responsible for freeing the return result. */ | |
633 | ||
634 | static char * | |
635 | psymtab_search_name (const char *name) | |
636 | { | |
637 | switch (current_language->la_language) | |
638 | { | |
639 | case language_cplus: | |
640 | case language_java: | |
641 | { | |
642 | if (strchr (name, '(')) | |
643 | { | |
644 | char *ret = cp_remove_params (name); | |
645 | ||
646 | if (ret) | |
647 | return ret; | |
648 | } | |
649 | } | |
650 | break; | |
651 | ||
652 | default: | |
653 | break; | |
654 | } | |
655 | ||
656 | return xstrdup (name); | |
657 | } | |
658 | ||
ccefe4c4 | 659 | /* Look, in partial_symtab PST, for symbol whose natural name is NAME. |
40658b94 | 660 | Check the global symbols if GLOBAL, the static symbols if not. */ |
ccefe4c4 | 661 | |
18430289 | 662 | static struct partial_symbol * |
ccefe4c4 TT |
663 | lookup_partial_symbol (struct partial_symtab *pst, const char *name, |
664 | int global, domain_enum domain) | |
665 | { | |
ccefe4c4 TT |
666 | struct partial_symbol **start, **psym; |
667 | struct partial_symbol **top, **real_top, **bottom, **center; | |
668 | int length = (global ? pst->n_global_syms : pst->n_static_syms); | |
669 | int do_linear_search = 1; | |
c00f8484 KS |
670 | char *search_name; |
671 | struct cleanup *cleanup; | |
ccefe4c4 TT |
672 | |
673 | if (length == 0) | |
674 | { | |
675 | return (NULL); | |
676 | } | |
c00f8484 KS |
677 | |
678 | search_name = psymtab_search_name (name); | |
679 | cleanup = make_cleanup (xfree, search_name); | |
ccefe4c4 TT |
680 | start = (global ? |
681 | pst->objfile->global_psymbols.list + pst->globals_offset : | |
682 | pst->objfile->static_psymbols.list + pst->statics_offset); | |
683 | ||
0df8b418 | 684 | if (global) /* This means we can use a binary search. */ |
ccefe4c4 TT |
685 | { |
686 | do_linear_search = 0; | |
687 | ||
688 | /* Binary search. This search is guaranteed to end with center | |
689 | pointing at the earliest partial symbol whose name might be | |
690 | correct. At that point *all* partial symbols with an | |
691 | appropriate name will be checked against the correct | |
692 | domain. */ | |
693 | ||
694 | bottom = start; | |
695 | top = start + length - 1; | |
696 | real_top = top; | |
697 | while (top > bottom) | |
698 | { | |
699 | center = bottom + (top - bottom) / 2; | |
700 | if (!(center < top)) | |
3e43a32a MS |
701 | internal_error (__FILE__, __LINE__, |
702 | _("failed internal consistency check")); | |
ccefe4c4 | 703 | if (!do_linear_search |
40658b94 | 704 | && SYMBOL_LANGUAGE (*center) == language_java) |
ccefe4c4 TT |
705 | { |
706 | do_linear_search = 1; | |
707 | } | |
c00f8484 KS |
708 | if (strcmp_iw_ordered (SYMBOL_SEARCH_NAME (*center), |
709 | search_name) >= 0) | |
ccefe4c4 TT |
710 | { |
711 | top = center; | |
712 | } | |
713 | else | |
714 | { | |
715 | bottom = center + 1; | |
716 | } | |
717 | } | |
718 | if (!(top == bottom)) | |
3e43a32a MS |
719 | internal_error (__FILE__, __LINE__, |
720 | _("failed internal consistency check")); | |
ccefe4c4 | 721 | |
559a7a62 JK |
722 | /* For `case_sensitivity == case_sensitive_off' strcmp_iw_ordered will |
723 | search more exactly than what matches SYMBOL_MATCHES_SEARCH_NAME. */ | |
724 | while (top >= start && SYMBOL_MATCHES_SEARCH_NAME (*top, search_name)) | |
725 | top--; | |
726 | ||
727 | /* Fixup to have a symbol which matches SYMBOL_MATCHES_SEARCH_NAME. */ | |
728 | top++; | |
729 | ||
730 | while (top <= real_top && SYMBOL_MATCHES_SEARCH_NAME (*top, search_name)) | |
ccefe4c4 TT |
731 | { |
732 | if (symbol_matches_domain (SYMBOL_LANGUAGE (*top), | |
733 | SYMBOL_DOMAIN (*top), domain)) | |
c00f8484 KS |
734 | { |
735 | do_cleanups (cleanup); | |
736 | return (*top); | |
737 | } | |
ccefe4c4 TT |
738 | top++; |
739 | } | |
740 | } | |
741 | ||
742 | /* Can't use a binary search or else we found during the binary search that | |
40658b94 | 743 | we should also do a linear search. */ |
ccefe4c4 TT |
744 | |
745 | if (do_linear_search) | |
746 | { | |
747 | for (psym = start; psym < start + length; psym++) | |
748 | { | |
749 | if (symbol_matches_domain (SYMBOL_LANGUAGE (*psym), | |
750 | SYMBOL_DOMAIN (*psym), domain) | |
c00f8484 KS |
751 | && SYMBOL_MATCHES_SEARCH_NAME (*psym, search_name)) |
752 | { | |
753 | do_cleanups (cleanup); | |
754 | return (*psym); | |
755 | } | |
ccefe4c4 TT |
756 | } |
757 | } | |
758 | ||
c00f8484 | 759 | do_cleanups (cleanup); |
ccefe4c4 TT |
760 | return (NULL); |
761 | } | |
762 | ||
763 | /* Get the symbol table that corresponds to a partial_symtab. | |
764 | This is fast after the first time you do it. In fact, there | |
765 | is an even faster macro PSYMTAB_TO_SYMTAB that does the fast | |
766 | case inline. */ | |
767 | ||
768 | static struct symtab * | |
769 | psymtab_to_symtab (struct partial_symtab *pst) | |
770 | { | |
0df8b418 | 771 | /* If it's been looked up before, return it. */ |
ccefe4c4 TT |
772 | if (pst->symtab) |
773 | return pst->symtab; | |
774 | ||
775 | /* If it has not yet been read in, read it. */ | |
776 | if (!pst->readin) | |
777 | { | |
778 | struct cleanup *back_to = increment_reading_symtab (); | |
ad3bbd48 | 779 | |
ccefe4c4 TT |
780 | (*pst->read_symtab) (pst); |
781 | do_cleanups (back_to); | |
782 | } | |
783 | ||
784 | return pst->symtab; | |
785 | } | |
786 | ||
787 | static void | |
788 | relocate_psymtabs (struct objfile *objfile, | |
789 | struct section_offsets *new_offsets, | |
790 | struct section_offsets *delta) | |
791 | { | |
792 | struct partial_symbol **psym; | |
793 | struct partial_symtab *p; | |
794 | ||
b11896a5 | 795 | ALL_OBJFILE_PSYMTABS_REQUIRED (objfile, p) |
ccefe4c4 TT |
796 | { |
797 | p->textlow += ANOFFSET (delta, SECT_OFF_TEXT (objfile)); | |
798 | p->texthigh += ANOFFSET (delta, SECT_OFF_TEXT (objfile)); | |
799 | } | |
800 | ||
801 | for (psym = objfile->global_psymbols.list; | |
802 | psym < objfile->global_psymbols.next; | |
803 | psym++) | |
804 | { | |
805 | fixup_psymbol_section (*psym, objfile); | |
806 | if (SYMBOL_SECTION (*psym) >= 0) | |
807 | SYMBOL_VALUE_ADDRESS (*psym) += ANOFFSET (delta, | |
808 | SYMBOL_SECTION (*psym)); | |
809 | } | |
810 | for (psym = objfile->static_psymbols.list; | |
811 | psym < objfile->static_psymbols.next; | |
812 | psym++) | |
813 | { | |
814 | fixup_psymbol_section (*psym, objfile); | |
815 | if (SYMBOL_SECTION (*psym) >= 0) | |
816 | SYMBOL_VALUE_ADDRESS (*psym) += ANOFFSET (delta, | |
817 | SYMBOL_SECTION (*psym)); | |
818 | } | |
819 | } | |
820 | ||
821 | static struct symtab * | |
822 | find_last_source_symtab_from_partial (struct objfile *ofp) | |
823 | { | |
ccefe4c4 TT |
824 | struct partial_symtab *ps; |
825 | struct partial_symtab *cs_pst = 0; | |
826 | ||
b11896a5 | 827 | ALL_OBJFILE_PSYMTABS_REQUIRED (ofp, ps) |
ccefe4c4 TT |
828 | { |
829 | const char *name = ps->filename; | |
830 | int len = strlen (name); | |
ad3bbd48 | 831 | |
ccefe4c4 TT |
832 | if (!(len > 2 && (strcmp (&name[len - 2], ".h") == 0 |
833 | || strcmp (name, "<<C++-namespaces>>") == 0))) | |
834 | cs_pst = ps; | |
835 | } | |
836 | ||
837 | if (cs_pst) | |
838 | { | |
839 | if (cs_pst->readin) | |
840 | { | |
841 | internal_error (__FILE__, __LINE__, | |
842 | _("select_source_symtab: " | |
843 | "readin pst found and no symtabs.")); | |
844 | } | |
845 | else | |
846 | return PSYMTAB_TO_SYMTAB (cs_pst); | |
847 | } | |
848 | return NULL; | |
849 | } | |
850 | ||
851 | static void | |
852 | forget_cached_source_info_partial (struct objfile *objfile) | |
853 | { | |
854 | struct partial_symtab *pst; | |
855 | ||
b11896a5 | 856 | ALL_OBJFILE_PSYMTABS_REQUIRED (objfile, pst) |
ccefe4c4 TT |
857 | { |
858 | if (pst->fullname != NULL) | |
859 | { | |
860 | xfree (pst->fullname); | |
861 | pst->fullname = NULL; | |
862 | } | |
863 | } | |
864 | } | |
865 | ||
866 | static void | |
867 | print_partial_symbols (struct gdbarch *gdbarch, | |
868 | struct partial_symbol **p, int count, char *what, | |
869 | struct ui_file *outfile) | |
870 | { | |
871 | fprintf_filtered (outfile, " %s partial symbols:\n", what); | |
872 | while (count-- > 0) | |
873 | { | |
874 | fprintf_filtered (outfile, " `%s'", SYMBOL_LINKAGE_NAME (*p)); | |
875 | if (SYMBOL_DEMANGLED_NAME (*p) != NULL) | |
876 | { | |
877 | fprintf_filtered (outfile, " `%s'", SYMBOL_DEMANGLED_NAME (*p)); | |
878 | } | |
879 | fputs_filtered (", ", outfile); | |
880 | switch (SYMBOL_DOMAIN (*p)) | |
881 | { | |
882 | case UNDEF_DOMAIN: | |
883 | fputs_filtered ("undefined domain, ", outfile); | |
884 | break; | |
885 | case VAR_DOMAIN: | |
0df8b418 | 886 | /* This is the usual thing -- don't print it. */ |
ccefe4c4 TT |
887 | break; |
888 | case STRUCT_DOMAIN: | |
889 | fputs_filtered ("struct domain, ", outfile); | |
890 | break; | |
891 | case LABEL_DOMAIN: | |
892 | fputs_filtered ("label domain, ", outfile); | |
893 | break; | |
894 | default: | |
895 | fputs_filtered ("<invalid domain>, ", outfile); | |
896 | break; | |
897 | } | |
898 | switch (SYMBOL_CLASS (*p)) | |
899 | { | |
900 | case LOC_UNDEF: | |
901 | fputs_filtered ("undefined", outfile); | |
902 | break; | |
903 | case LOC_CONST: | |
904 | fputs_filtered ("constant int", outfile); | |
905 | break; | |
906 | case LOC_STATIC: | |
907 | fputs_filtered ("static", outfile); | |
908 | break; | |
909 | case LOC_REGISTER: | |
910 | fputs_filtered ("register", outfile); | |
911 | break; | |
912 | case LOC_ARG: | |
913 | fputs_filtered ("pass by value", outfile); | |
914 | break; | |
915 | case LOC_REF_ARG: | |
916 | fputs_filtered ("pass by reference", outfile); | |
917 | break; | |
918 | case LOC_REGPARM_ADDR: | |
919 | fputs_filtered ("register address parameter", outfile); | |
920 | break; | |
921 | case LOC_LOCAL: | |
922 | fputs_filtered ("stack parameter", outfile); | |
923 | break; | |
924 | case LOC_TYPEDEF: | |
925 | fputs_filtered ("type", outfile); | |
926 | break; | |
927 | case LOC_LABEL: | |
928 | fputs_filtered ("label", outfile); | |
929 | break; | |
930 | case LOC_BLOCK: | |
931 | fputs_filtered ("function", outfile); | |
932 | break; | |
933 | case LOC_CONST_BYTES: | |
934 | fputs_filtered ("constant bytes", outfile); | |
935 | break; | |
936 | case LOC_UNRESOLVED: | |
937 | fputs_filtered ("unresolved", outfile); | |
938 | break; | |
939 | case LOC_OPTIMIZED_OUT: | |
940 | fputs_filtered ("optimized out", outfile); | |
941 | break; | |
942 | case LOC_COMPUTED: | |
943 | fputs_filtered ("computed at runtime", outfile); | |
944 | break; | |
945 | default: | |
946 | fputs_filtered ("<invalid location>", outfile); | |
947 | break; | |
948 | } | |
949 | fputs_filtered (", ", outfile); | |
950 | fputs_filtered (paddress (gdbarch, SYMBOL_VALUE_ADDRESS (*p)), outfile); | |
951 | fprintf_filtered (outfile, "\n"); | |
952 | p++; | |
953 | } | |
954 | } | |
955 | ||
956 | static void | |
957 | dump_psymtab (struct objfile *objfile, struct partial_symtab *psymtab, | |
958 | struct ui_file *outfile) | |
959 | { | |
960 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
961 | int i; | |
962 | ||
963 | fprintf_filtered (outfile, "\nPartial symtab for source file %s ", | |
964 | psymtab->filename); | |
965 | fprintf_filtered (outfile, "(object "); | |
966 | gdb_print_host_address (psymtab, outfile); | |
967 | fprintf_filtered (outfile, ")\n\n"); | |
968 | fprintf_unfiltered (outfile, " Read from object file %s (", | |
969 | objfile->name); | |
970 | gdb_print_host_address (objfile, outfile); | |
971 | fprintf_unfiltered (outfile, ")\n"); | |
972 | ||
973 | if (psymtab->readin) | |
974 | { | |
975 | fprintf_filtered (outfile, | |
976 | " Full symtab was read (at "); | |
977 | gdb_print_host_address (psymtab->symtab, outfile); | |
978 | fprintf_filtered (outfile, " by function at "); | |
979 | gdb_print_host_address (psymtab->read_symtab, outfile); | |
980 | fprintf_filtered (outfile, ")\n"); | |
981 | } | |
982 | ||
983 | fprintf_filtered (outfile, " Relocate symbols by "); | |
984 | for (i = 0; i < psymtab->objfile->num_sections; ++i) | |
985 | { | |
986 | if (i != 0) | |
987 | fprintf_filtered (outfile, ", "); | |
988 | wrap_here (" "); | |
989 | fputs_filtered (paddress (gdbarch, | |
990 | ANOFFSET (psymtab->section_offsets, i)), | |
991 | outfile); | |
992 | } | |
993 | fprintf_filtered (outfile, "\n"); | |
994 | ||
995 | fprintf_filtered (outfile, " Symbols cover text addresses "); | |
996 | fputs_filtered (paddress (gdbarch, psymtab->textlow), outfile); | |
997 | fprintf_filtered (outfile, "-"); | |
998 | fputs_filtered (paddress (gdbarch, psymtab->texthigh), outfile); | |
999 | fprintf_filtered (outfile, "\n"); | |
9750bca9 JK |
1000 | fprintf_filtered (outfile, " Address map supported - %s.\n", |
1001 | psymtab->psymtabs_addrmap_supported ? "yes" : "no"); | |
ccefe4c4 TT |
1002 | fprintf_filtered (outfile, " Depends on %d other partial symtabs.\n", |
1003 | psymtab->number_of_dependencies); | |
1004 | for (i = 0; i < psymtab->number_of_dependencies; i++) | |
1005 | { | |
1006 | fprintf_filtered (outfile, " %d ", i); | |
1007 | gdb_print_host_address (psymtab->dependencies[i], outfile); | |
1008 | fprintf_filtered (outfile, " %s\n", | |
1009 | psymtab->dependencies[i]->filename); | |
1010 | } | |
1011 | if (psymtab->n_global_syms > 0) | |
1012 | { | |
1013 | print_partial_symbols (gdbarch, | |
1014 | objfile->global_psymbols.list | |
1015 | + psymtab->globals_offset, | |
1016 | psymtab->n_global_syms, "Global", outfile); | |
1017 | } | |
1018 | if (psymtab->n_static_syms > 0) | |
1019 | { | |
1020 | print_partial_symbols (gdbarch, | |
1021 | objfile->static_psymbols.list | |
1022 | + psymtab->statics_offset, | |
1023 | psymtab->n_static_syms, "Static", outfile); | |
1024 | } | |
1025 | fprintf_filtered (outfile, "\n"); | |
1026 | } | |
1027 | ||
1028 | static void | |
1029 | print_psymtab_stats_for_objfile (struct objfile *objfile) | |
1030 | { | |
1031 | int i; | |
1032 | struct partial_symtab *ps; | |
ad3bbd48 | 1033 | |
ccefe4c4 | 1034 | i = 0; |
b11896a5 | 1035 | ALL_OBJFILE_PSYMTABS_REQUIRED (objfile, ps) |
ccefe4c4 TT |
1036 | { |
1037 | if (ps->readin == 0) | |
1038 | i++; | |
1039 | } | |
1040 | printf_filtered (_(" Number of psym tables (not yet expanded): %d\n"), i); | |
1041 | } | |
1042 | ||
1043 | static void | |
1044 | dump_psymtabs_for_objfile (struct objfile *objfile) | |
1045 | { | |
1046 | struct partial_symtab *psymtab; | |
1047 | ||
1048 | if (objfile->psymtabs) | |
1049 | { | |
1050 | printf_filtered ("Psymtabs:\n"); | |
1051 | for (psymtab = objfile->psymtabs; | |
1052 | psymtab != NULL; | |
1053 | psymtab = psymtab->next) | |
1054 | { | |
1055 | printf_filtered ("%s at ", | |
1056 | psymtab->filename); | |
1057 | gdb_print_host_address (psymtab, gdb_stdout); | |
1058 | printf_filtered (", "); | |
1059 | if (psymtab->objfile != objfile) | |
1060 | { | |
1061 | printf_filtered ("NOT ON CHAIN! "); | |
1062 | } | |
1063 | wrap_here (" "); | |
1064 | } | |
1065 | printf_filtered ("\n\n"); | |
1066 | } | |
1067 | } | |
1068 | ||
1069 | /* Look through the partial symtabs for all symbols which begin | |
0df8b418 | 1070 | by matching FUNC_NAME. Make sure we read that symbol table in. */ |
ccefe4c4 TT |
1071 | |
1072 | static void | |
1073 | read_symtabs_for_function (struct objfile *objfile, const char *func_name) | |
1074 | { | |
1075 | struct partial_symtab *ps; | |
1076 | ||
b11896a5 | 1077 | ALL_OBJFILE_PSYMTABS_REQUIRED (objfile, ps) |
ccefe4c4 TT |
1078 | { |
1079 | if (ps->readin) | |
1080 | continue; | |
1081 | ||
1082 | if ((lookup_partial_symbol (ps, func_name, 1, VAR_DOMAIN) | |
1083 | != NULL) | |
1084 | || (lookup_partial_symbol (ps, func_name, 0, VAR_DOMAIN) | |
1085 | != NULL)) | |
1086 | psymtab_to_symtab (ps); | |
1087 | } | |
1088 | } | |
1089 | ||
1090 | static void | |
1091 | expand_partial_symbol_tables (struct objfile *objfile) | |
1092 | { | |
1093 | struct partial_symtab *psymtab; | |
1094 | ||
b11896a5 | 1095 | ALL_OBJFILE_PSYMTABS_REQUIRED (objfile, psymtab) |
ccefe4c4 TT |
1096 | { |
1097 | psymtab_to_symtab (psymtab); | |
1098 | } | |
1099 | } | |
1100 | ||
1101 | static void | |
1102 | read_psymtabs_with_filename (struct objfile *objfile, const char *filename) | |
1103 | { | |
1104 | struct partial_symtab *p; | |
1105 | ||
b11896a5 | 1106 | ALL_OBJFILE_PSYMTABS_REQUIRED (objfile, p) |
ccefe4c4 | 1107 | { |
0ba1096a | 1108 | if (filename_cmp (filename, p->filename) == 0) |
ccefe4c4 TT |
1109 | PSYMTAB_TO_SYMTAB (p); |
1110 | } | |
1111 | } | |
1112 | ||
ccefe4c4 TT |
1113 | static void |
1114 | map_symbol_filenames_psymtab (struct objfile *objfile, | |
74e2f255 DE |
1115 | symbol_filename_ftype *fun, void *data, |
1116 | int need_fullname) | |
ccefe4c4 TT |
1117 | { |
1118 | struct partial_symtab *ps; | |
1119 | ||
b11896a5 | 1120 | ALL_OBJFILE_PSYMTABS_REQUIRED (objfile, ps) |
ccefe4c4 TT |
1121 | { |
1122 | const char *fullname; | |
1123 | ||
1124 | if (ps->readin) | |
1125 | continue; | |
1126 | ||
821296b7 | 1127 | QUIT; |
74e2f255 DE |
1128 | if (need_fullname) |
1129 | fullname = psymtab_to_fullname (ps); | |
1130 | else | |
1131 | fullname = NULL; | |
2837d59e | 1132 | (*fun) (ps->filename, fullname, data); |
ccefe4c4 TT |
1133 | } |
1134 | } | |
1135 | ||
1136 | int find_and_open_source (const char *filename, | |
1137 | const char *dirname, | |
1138 | char **fullname); | |
1139 | ||
1140 | /* Finds the fullname that a partial_symtab represents. | |
1141 | ||
1142 | If this functions finds the fullname, it will save it in ps->fullname | |
1143 | and it will also return the value. | |
1144 | ||
1145 | If this function fails to find the file that this partial_symtab represents, | |
1146 | NULL will be returned and ps->fullname will be set to NULL. */ | |
256f06f3 | 1147 | |
ccefe4c4 TT |
1148 | static char * |
1149 | psymtab_to_fullname (struct partial_symtab *ps) | |
1150 | { | |
1151 | int r; | |
1152 | ||
1153 | if (!ps) | |
1154 | return NULL; | |
1155 | ||
256f06f3 DE |
1156 | /* Use cached copy if we have it. |
1157 | We rely on forget_cached_source_info being called appropriately | |
1158 | to handle cases like the file being moved. */ | |
1159 | if (ps->fullname) | |
1160 | return ps->fullname; | |
1161 | ||
ccefe4c4 TT |
1162 | r = find_and_open_source (ps->filename, ps->dirname, &ps->fullname); |
1163 | ||
1164 | if (r >= 0) | |
1165 | { | |
1166 | close (r); | |
1167 | return ps->fullname; | |
1168 | } | |
1169 | ||
1170 | return NULL; | |
1171 | } | |
1172 | ||
dd786858 | 1173 | static const char * |
ccefe4c4 TT |
1174 | find_symbol_file_from_partial (struct objfile *objfile, const char *name) |
1175 | { | |
1176 | struct partial_symtab *pst; | |
1177 | ||
b11896a5 | 1178 | ALL_OBJFILE_PSYMTABS_REQUIRED (objfile, pst) |
ccefe4c4 TT |
1179 | { |
1180 | if (lookup_partial_symbol (pst, name, 1, VAR_DOMAIN)) | |
1181 | return pst->filename; | |
1182 | } | |
1183 | return NULL; | |
1184 | } | |
1185 | ||
40658b94 PH |
1186 | /* For all symbols, s, in BLOCK that are in NAMESPACE and match NAME |
1187 | according to the function MATCH, call CALLBACK(BLOCK, s, DATA). | |
1188 | BLOCK is assumed to come from OBJFILE. Returns 1 iff CALLBACK | |
1189 | ever returns non-zero, and otherwise returns 0. */ | |
ccefe4c4 | 1190 | |
40658b94 PH |
1191 | static int |
1192 | map_block (const char *name, domain_enum namespace, struct objfile *objfile, | |
1193 | struct block *block, | |
1194 | int (*callback) (struct block *, struct symbol *, void *), | |
2edb89d3 | 1195 | void *data, symbol_compare_ftype *match) |
ccefe4c4 | 1196 | { |
40658b94 PH |
1197 | struct dict_iterator iter; |
1198 | struct symbol *sym; | |
ccefe4c4 | 1199 | |
40658b94 PH |
1200 | for (sym = dict_iter_match_first (BLOCK_DICT (block), name, match, &iter); |
1201 | sym != NULL; sym = dict_iter_match_next (name, match, &iter)) | |
ccefe4c4 | 1202 | { |
40658b94 PH |
1203 | if (symbol_matches_domain (SYMBOL_LANGUAGE (sym), |
1204 | SYMBOL_DOMAIN (sym), namespace)) | |
1205 | { | |
1206 | if (callback (block, sym, data)) | |
1207 | return 1; | |
1208 | } | |
ccefe4c4 TT |
1209 | } |
1210 | ||
40658b94 | 1211 | return 0; |
ccefe4c4 TT |
1212 | } |
1213 | ||
40658b94 PH |
1214 | /* Psymtab version of map_matching_symbols. See its definition in |
1215 | the definition of quick_symbol_functions in symfile.h. */ | |
1216 | ||
ccefe4c4 | 1217 | static void |
40658b94 PH |
1218 | map_matching_symbols_psymtab (const char *name, domain_enum namespace, |
1219 | struct objfile *objfile, int global, | |
1220 | int (*callback) (struct block *, | |
1221 | struct symbol *, void *), | |
1222 | void *data, | |
2edb89d3 JK |
1223 | symbol_compare_ftype *match, |
1224 | symbol_compare_ftype *ordered_compare) | |
ccefe4c4 | 1225 | { |
40658b94 | 1226 | const int block_kind = global ? GLOBAL_BLOCK : STATIC_BLOCK; |
ccefe4c4 TT |
1227 | struct partial_symtab *ps; |
1228 | ||
b11896a5 | 1229 | ALL_OBJFILE_PSYMTABS_REQUIRED (objfile, ps) |
ccefe4c4 TT |
1230 | { |
1231 | QUIT; | |
1232 | if (ps->readin | |
40658b94 PH |
1233 | || match_partial_symbol (ps, global, name, namespace, match, |
1234 | ordered_compare)) | |
ccefe4c4 TT |
1235 | { |
1236 | struct symtab *s = PSYMTAB_TO_SYMTAB (ps); | |
40658b94 | 1237 | struct block *block; |
ad3bbd48 | 1238 | |
ccefe4c4 TT |
1239 | if (s == NULL || !s->primary) |
1240 | continue; | |
40658b94 PH |
1241 | block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), block_kind); |
1242 | if (map_block (name, namespace, objfile, block, | |
1243 | callback, data, match)) | |
1244 | return; | |
1245 | if (callback (block, NULL, data)) | |
1246 | return; | |
ccefe4c4 TT |
1247 | } |
1248 | } | |
40658b94 | 1249 | } |
ccefe4c4 TT |
1250 | |
1251 | static void | |
f8eba3c6 TT |
1252 | expand_symtabs_matching_via_partial |
1253 | (struct objfile *objfile, | |
1254 | int (*file_matcher) (const char *, void *), | |
1255 | int (*name_matcher) (const struct language_defn *, const char *, void *), | |
1256 | enum search_domain kind, | |
1257 | void *data) | |
ccefe4c4 TT |
1258 | { |
1259 | struct partial_symtab *ps; | |
1260 | ||
b11896a5 | 1261 | ALL_OBJFILE_PSYMTABS_REQUIRED (objfile, ps) |
ccefe4c4 TT |
1262 | { |
1263 | struct partial_symbol **psym; | |
1264 | struct partial_symbol **bound, **gbound, **sbound; | |
1265 | int keep_going = 1; | |
1266 | ||
1267 | if (ps->readin) | |
1268 | continue; | |
1269 | ||
7b08b9eb | 1270 | if (file_matcher && ! (*file_matcher) (ps->filename, data)) |
ccefe4c4 TT |
1271 | continue; |
1272 | ||
3e43a32a MS |
1273 | gbound = objfile->global_psymbols.list |
1274 | + ps->globals_offset + ps->n_global_syms; | |
1275 | sbound = objfile->static_psymbols.list | |
1276 | + ps->statics_offset + ps->n_static_syms; | |
ccefe4c4 TT |
1277 | bound = gbound; |
1278 | ||
1279 | /* Go through all of the symbols stored in a partial | |
0df8b418 | 1280 | symtab in one loop. */ |
ccefe4c4 TT |
1281 | psym = objfile->global_psymbols.list + ps->globals_offset; |
1282 | while (keep_going) | |
1283 | { | |
1284 | if (psym >= bound) | |
1285 | { | |
1286 | if (bound == gbound && ps->n_static_syms != 0) | |
1287 | { | |
1288 | psym = objfile->static_psymbols.list + ps->statics_offset; | |
1289 | bound = sbound; | |
1290 | } | |
1291 | else | |
1292 | keep_going = 0; | |
1293 | continue; | |
1294 | } | |
1295 | else | |
1296 | { | |
1297 | QUIT; | |
1298 | ||
7b08b9eb JK |
1299 | if ((kind == ALL_DOMAIN |
1300 | || (kind == VARIABLES_DOMAIN | |
ccefe4c4 TT |
1301 | && SYMBOL_CLASS (*psym) != LOC_TYPEDEF |
1302 | && SYMBOL_CLASS (*psym) != LOC_BLOCK) | |
7b08b9eb JK |
1303 | || (kind == FUNCTIONS_DOMAIN |
1304 | && SYMBOL_CLASS (*psym) == LOC_BLOCK) | |
1305 | || (kind == TYPES_DOMAIN | |
1306 | && SYMBOL_CLASS (*psym) == LOC_TYPEDEF)) | |
f8eba3c6 | 1307 | && (*name_matcher) (current_language, |
bb2f58dc | 1308 | SYMBOL_SEARCH_NAME (*psym), data)) |
ccefe4c4 TT |
1309 | { |
1310 | PSYMTAB_TO_SYMTAB (ps); | |
1311 | keep_going = 0; | |
1312 | } | |
1313 | } | |
1314 | psym++; | |
1315 | } | |
1316 | } | |
1317 | } | |
1318 | ||
1319 | static int | |
1320 | objfile_has_psyms (struct objfile *objfile) | |
1321 | { | |
1322 | return objfile->psymtabs != NULL; | |
1323 | } | |
1324 | ||
1325 | const struct quick_symbol_functions psym_functions = | |
1326 | { | |
1327 | objfile_has_psyms, | |
1328 | find_last_source_symtab_from_partial, | |
1329 | forget_cached_source_info_partial, | |
f8eba3c6 | 1330 | partial_map_symtabs_matching_filename, |
ccefe4c4 | 1331 | lookup_symbol_aux_psymtabs, |
774b6a14 | 1332 | pre_expand_symtabs_matching_psymtabs, |
ccefe4c4 TT |
1333 | print_psymtab_stats_for_objfile, |
1334 | dump_psymtabs_for_objfile, | |
1335 | relocate_psymtabs, | |
1336 | read_symtabs_for_function, | |
1337 | expand_partial_symbol_tables, | |
1338 | read_psymtabs_with_filename, | |
1339 | find_symbol_file_from_partial, | |
40658b94 | 1340 | map_matching_symbols_psymtab, |
ccefe4c4 TT |
1341 | expand_symtabs_matching_via_partial, |
1342 | find_pc_sect_symtab_from_partial, | |
ccefe4c4 TT |
1343 | map_symbol_filenames_psymtab |
1344 | }; | |
1345 | ||
1346 | \f | |
1347 | ||
1348 | /* This compares two partial symbols by names, using strcmp_iw_ordered | |
1349 | for the comparison. */ | |
1350 | ||
1351 | static int | |
1352 | compare_psymbols (const void *s1p, const void *s2p) | |
1353 | { | |
1354 | struct partial_symbol *const *s1 = s1p; | |
1355 | struct partial_symbol *const *s2 = s2p; | |
1356 | ||
1357 | return strcmp_iw_ordered (SYMBOL_SEARCH_NAME (*s1), | |
1358 | SYMBOL_SEARCH_NAME (*s2)); | |
1359 | } | |
1360 | ||
1361 | void | |
1362 | sort_pst_symbols (struct partial_symtab *pst) | |
1363 | { | |
0df8b418 | 1364 | /* Sort the global list; don't sort the static list. */ |
ccefe4c4 TT |
1365 | |
1366 | qsort (pst->objfile->global_psymbols.list + pst->globals_offset, | |
1367 | pst->n_global_syms, sizeof (struct partial_symbol *), | |
1368 | compare_psymbols); | |
1369 | } | |
1370 | ||
1371 | /* Allocate and partially fill a partial symtab. It will be | |
1372 | completely filled at the end of the symbol list. | |
1373 | ||
0df8b418 | 1374 | FILENAME is the name of the symbol-file we are reading from. */ |
ccefe4c4 TT |
1375 | |
1376 | struct partial_symtab * | |
1377 | start_psymtab_common (struct objfile *objfile, | |
1378 | struct section_offsets *section_offsets, | |
1379 | const char *filename, | |
1380 | CORE_ADDR textlow, struct partial_symbol **global_syms, | |
1381 | struct partial_symbol **static_syms) | |
1382 | { | |
1383 | struct partial_symtab *psymtab; | |
1384 | ||
1385 | psymtab = allocate_psymtab (filename, objfile); | |
1386 | psymtab->section_offsets = section_offsets; | |
1387 | psymtab->textlow = textlow; | |
1388 | psymtab->texthigh = psymtab->textlow; /* default */ | |
1389 | psymtab->globals_offset = global_syms - objfile->global_psymbols.list; | |
1390 | psymtab->statics_offset = static_syms - objfile->static_psymbols.list; | |
1391 | return (psymtab); | |
1392 | } | |
1393 | ||
cbd70537 SW |
1394 | /* Calculate a hash code for the given partial symbol. The hash is |
1395 | calculated using the symbol's value, language, domain, class | |
0df8b418 | 1396 | and name. These are the values which are set by |
cbd70537 SW |
1397 | add_psymbol_to_bcache. */ |
1398 | ||
710e1a31 | 1399 | static unsigned long |
cbd70537 SW |
1400 | psymbol_hash (const void *addr, int length) |
1401 | { | |
1402 | unsigned long h = 0; | |
1403 | struct partial_symbol *psymbol = (struct partial_symbol *) addr; | |
1404 | unsigned int lang = psymbol->ginfo.language; | |
1405 | unsigned int domain = PSYMBOL_DOMAIN (psymbol); | |
1406 | unsigned int class = PSYMBOL_CLASS (psymbol); | |
1407 | ||
1408 | h = hash_continue (&psymbol->ginfo.value, sizeof (psymbol->ginfo.value), h); | |
1409 | h = hash_continue (&lang, sizeof (unsigned int), h); | |
1410 | h = hash_continue (&domain, sizeof (unsigned int), h); | |
1411 | h = hash_continue (&class, sizeof (unsigned int), h); | |
1412 | h = hash_continue (psymbol->ginfo.name, strlen (psymbol->ginfo.name), h); | |
1413 | ||
1414 | return h; | |
1415 | } | |
1416 | ||
1417 | /* Returns true if the symbol at addr1 equals the symbol at addr2. | |
1418 | For the comparison this function uses a symbols value, | |
1419 | language, domain, class and name. */ | |
1420 | ||
710e1a31 | 1421 | static int |
cbd70537 SW |
1422 | psymbol_compare (const void *addr1, const void *addr2, int length) |
1423 | { | |
1424 | struct partial_symbol *sym1 = (struct partial_symbol *) addr1; | |
1425 | struct partial_symbol *sym2 = (struct partial_symbol *) addr2; | |
1426 | ||
1427 | return (memcmp (&sym1->ginfo.value, &sym1->ginfo.value, | |
1428 | sizeof (sym1->ginfo.value)) == 0 | |
1429 | && sym1->ginfo.language == sym2->ginfo.language | |
1430 | && PSYMBOL_DOMAIN (sym1) == PSYMBOL_DOMAIN (sym2) | |
1431 | && PSYMBOL_CLASS (sym1) == PSYMBOL_CLASS (sym2) | |
1432 | && sym1->ginfo.name == sym2->ginfo.name); | |
1433 | } | |
1434 | ||
710e1a31 SW |
1435 | /* Initialize a partial symbol bcache. */ |
1436 | ||
1437 | struct psymbol_bcache * | |
1438 | psymbol_bcache_init (void) | |
1439 | { | |
1440 | struct psymbol_bcache *bcache = XCALLOC (1, struct psymbol_bcache); | |
1441 | bcache->bcache = bcache_xmalloc (psymbol_hash, psymbol_compare); | |
1442 | return bcache; | |
1443 | } | |
1444 | ||
1445 | /* Free a partial symbol bcache. */ | |
1446 | void | |
1447 | psymbol_bcache_free (struct psymbol_bcache *bcache) | |
1448 | { | |
1449 | if (bcache == NULL) | |
1450 | return; | |
1451 | ||
1452 | bcache_xfree (bcache->bcache); | |
1453 | xfree (bcache); | |
1454 | } | |
1455 | ||
0df8b418 | 1456 | /* Return the internal bcache of the psymbol_bcache BCACHE. */ |
710e1a31 SW |
1457 | |
1458 | struct bcache * | |
1459 | psymbol_bcache_get_bcache (struct psymbol_bcache *bcache) | |
1460 | { | |
1461 | return bcache->bcache; | |
1462 | } | |
1463 | ||
1464 | /* Find a copy of the SYM in BCACHE. If BCACHE has never seen this | |
1465 | symbol before, add a copy to BCACHE. In either case, return a pointer | |
1466 | to BCACHE's copy of the symbol. If optional ADDED is not NULL, return | |
1467 | 1 in case of new entry or 0 if returning an old entry. */ | |
1468 | ||
1469 | static const struct partial_symbol * | |
1470 | psymbol_bcache_full (struct partial_symbol *sym, | |
1471 | struct psymbol_bcache *bcache, | |
1472 | int *added) | |
1473 | { | |
1474 | return bcache_full (sym, | |
1475 | sizeof (struct partial_symbol), | |
1476 | bcache->bcache, | |
1477 | added); | |
1478 | } | |
1479 | ||
ccefe4c4 TT |
1480 | /* Helper function, initialises partial symbol structure and stashes |
1481 | it into objfile's bcache. Note that our caching mechanism will | |
1482 | use all fields of struct partial_symbol to determine hash value of the | |
1483 | structure. In other words, having two symbols with the same name but | |
1484 | different domain (or address) is possible and correct. */ | |
1485 | ||
1486 | static const struct partial_symbol * | |
72b9f47f | 1487 | add_psymbol_to_bcache (const char *name, int namelength, int copy_name, |
ccefe4c4 TT |
1488 | domain_enum domain, |
1489 | enum address_class class, | |
1490 | long val, /* Value as a long */ | |
1491 | CORE_ADDR coreaddr, /* Value as a CORE_ADDR */ | |
1492 | enum language language, struct objfile *objfile, | |
1493 | int *added) | |
1494 | { | |
cbd70537 SW |
1495 | struct partial_symbol psymbol; |
1496 | ||
fc956729 SW |
1497 | /* We must ensure that the entire 'value' field has been zeroed |
1498 | before assigning to it, because an assignment may not write the | |
1499 | entire field. */ | |
1500 | memset (&psymbol.ginfo.value, 0, sizeof (psymbol.ginfo.value)); | |
1501 | ||
0df8b418 | 1502 | /* val and coreaddr are mutually exclusive, one of them *will* be zero. */ |
ccefe4c4 TT |
1503 | if (val != 0) |
1504 | { | |
1505 | SYMBOL_VALUE (&psymbol) = val; | |
1506 | } | |
1507 | else | |
1508 | { | |
1509 | SYMBOL_VALUE_ADDRESS (&psymbol) = coreaddr; | |
1510 | } | |
1511 | SYMBOL_SECTION (&psymbol) = 0; | |
fc956729 | 1512 | SYMBOL_OBJ_SECTION (&psymbol) = NULL; |
33e5013e | 1513 | SYMBOL_SET_LANGUAGE (&psymbol, language); |
ccefe4c4 TT |
1514 | PSYMBOL_DOMAIN (&psymbol) = domain; |
1515 | PSYMBOL_CLASS (&psymbol) = class; | |
1516 | ||
1517 | SYMBOL_SET_NAMES (&psymbol, name, namelength, copy_name, objfile); | |
1518 | ||
0df8b418 | 1519 | /* Stash the partial symbol away in the cache. */ |
710e1a31 SW |
1520 | return psymbol_bcache_full (&psymbol, |
1521 | objfile->psymbol_cache, | |
1522 | added); | |
ccefe4c4 TT |
1523 | } |
1524 | ||
923c6a3d | 1525 | /* Increase the space allocated for LISTP, which is probably |
0df8b418 | 1526 | global_psymbols or static_psymbols. This space will eventually |
923c6a3d TT |
1527 | be freed in free_objfile(). */ |
1528 | ||
1529 | static void | |
1530 | extend_psymbol_list (struct psymbol_allocation_list *listp, | |
1531 | struct objfile *objfile) | |
1532 | { | |
1533 | int new_size; | |
1534 | ||
1535 | if (listp->size == 0) | |
1536 | { | |
1537 | new_size = 255; | |
1538 | listp->list = (struct partial_symbol **) | |
1539 | xmalloc (new_size * sizeof (struct partial_symbol *)); | |
1540 | } | |
1541 | else | |
1542 | { | |
1543 | new_size = listp->size * 2; | |
1544 | listp->list = (struct partial_symbol **) | |
1545 | xrealloc ((char *) listp->list, | |
1546 | new_size * sizeof (struct partial_symbol *)); | |
1547 | } | |
1548 | /* Next assumes we only went one over. Should be good if | |
0df8b418 | 1549 | program works correctly. */ |
923c6a3d TT |
1550 | listp->next = listp->list + listp->size; |
1551 | listp->size = new_size; | |
1552 | } | |
1553 | ||
ccefe4c4 TT |
1554 | /* Helper function, adds partial symbol to the given partial symbol |
1555 | list. */ | |
1556 | ||
1557 | static void | |
1558 | append_psymbol_to_list (struct psymbol_allocation_list *list, | |
1559 | const struct partial_symbol *psym, | |
1560 | struct objfile *objfile) | |
1561 | { | |
1562 | if (list->next >= list->list + list->size) | |
1563 | extend_psymbol_list (list, objfile); | |
1564 | *list->next++ = (struct partial_symbol *) psym; | |
1565 | OBJSTAT (objfile, n_psyms++); | |
1566 | } | |
1567 | ||
1568 | /* Add a symbol with a long value to a psymtab. | |
1569 | Since one arg is a struct, we pass in a ptr and deref it (sigh). | |
1570 | Return the partial symbol that has been added. */ | |
1571 | ||
1572 | /* NOTE: carlton/2003-09-11: The reason why we return the partial | |
1573 | symbol is so that callers can get access to the symbol's demangled | |
1574 | name, which they don't have any cheap way to determine otherwise. | |
1575 | (Currenly, dwarf2read.c is the only file who uses that information, | |
1576 | though it's possible that other readers might in the future.) | |
1577 | Elena wasn't thrilled about that, and I don't blame her, but we | |
1578 | couldn't come up with a better way to get that information. If | |
1579 | it's needed in other situations, we could consider breaking up | |
1580 | SYMBOL_SET_NAMES to provide access to the demangled name lookup | |
1581 | cache. */ | |
1582 | ||
1583 | const struct partial_symbol * | |
72b9f47f | 1584 | add_psymbol_to_list (const char *name, int namelength, int copy_name, |
ccefe4c4 TT |
1585 | domain_enum domain, |
1586 | enum address_class class, | |
1587 | struct psymbol_allocation_list *list, | |
1588 | long val, /* Value as a long */ | |
1589 | CORE_ADDR coreaddr, /* Value as a CORE_ADDR */ | |
1590 | enum language language, struct objfile *objfile) | |
1591 | { | |
1592 | const struct partial_symbol *psym; | |
1593 | ||
1594 | int added; | |
1595 | ||
0df8b418 | 1596 | /* Stash the partial symbol away in the cache. */ |
ccefe4c4 TT |
1597 | psym = add_psymbol_to_bcache (name, namelength, copy_name, domain, class, |
1598 | val, coreaddr, language, objfile, &added); | |
1599 | ||
1600 | /* Do not duplicate global partial symbols. */ | |
1601 | if (list == &objfile->global_psymbols | |
1602 | && !added) | |
1603 | return psym; | |
1604 | ||
0df8b418 | 1605 | /* Save pointer to partial symbol in psymtab, growing symtab if needed. */ |
ccefe4c4 TT |
1606 | append_psymbol_to_list (list, psym, objfile); |
1607 | return psym; | |
1608 | } | |
1609 | ||
1610 | /* Initialize storage for partial symbols. */ | |
1611 | ||
1612 | void | |
1613 | init_psymbol_list (struct objfile *objfile, int total_symbols) | |
1614 | { | |
1615 | /* Free any previously allocated psymbol lists. */ | |
1616 | ||
1617 | if (objfile->global_psymbols.list) | |
1618 | { | |
1619 | xfree (objfile->global_psymbols.list); | |
1620 | } | |
1621 | if (objfile->static_psymbols.list) | |
1622 | { | |
1623 | xfree (objfile->static_psymbols.list); | |
1624 | } | |
1625 | ||
1626 | /* Current best guess is that approximately a twentieth | |
1627 | of the total symbols (in a debugging file) are global or static | |
0df8b418 | 1628 | oriented symbols. */ |
ccefe4c4 TT |
1629 | |
1630 | objfile->global_psymbols.size = total_symbols / 10; | |
1631 | objfile->static_psymbols.size = total_symbols / 10; | |
1632 | ||
1633 | if (objfile->global_psymbols.size > 0) | |
1634 | { | |
1635 | objfile->global_psymbols.next = | |
1636 | objfile->global_psymbols.list = (struct partial_symbol **) | |
1637 | xmalloc ((objfile->global_psymbols.size | |
1638 | * sizeof (struct partial_symbol *))); | |
1639 | } | |
1640 | if (objfile->static_psymbols.size > 0) | |
1641 | { | |
1642 | objfile->static_psymbols.next = | |
1643 | objfile->static_psymbols.list = (struct partial_symbol **) | |
1644 | xmalloc ((objfile->static_psymbols.size | |
1645 | * sizeof (struct partial_symbol *))); | |
1646 | } | |
1647 | } | |
1648 | ||
1649 | struct partial_symtab * | |
1650 | allocate_psymtab (const char *filename, struct objfile *objfile) | |
1651 | { | |
1652 | struct partial_symtab *psymtab; | |
1653 | ||
1654 | if (objfile->free_psymtabs) | |
1655 | { | |
1656 | psymtab = objfile->free_psymtabs; | |
1657 | objfile->free_psymtabs = psymtab->next; | |
1658 | } | |
1659 | else | |
1660 | psymtab = (struct partial_symtab *) | |
1661 | obstack_alloc (&objfile->objfile_obstack, | |
1662 | sizeof (struct partial_symtab)); | |
1663 | ||
1664 | memset (psymtab, 0, sizeof (struct partial_symtab)); | |
1665 | psymtab->filename = obsavestring (filename, strlen (filename), | |
1666 | &objfile->objfile_obstack); | |
1667 | psymtab->symtab = NULL; | |
1668 | ||
1669 | /* Prepend it to the psymtab list for the objfile it belongs to. | |
1670 | Psymtabs are searched in most recent inserted -> least recent | |
0df8b418 | 1671 | inserted order. */ |
ccefe4c4 TT |
1672 | |
1673 | psymtab->objfile = objfile; | |
1674 | psymtab->next = objfile->psymtabs; | |
1675 | objfile->psymtabs = psymtab; | |
ccefe4c4 TT |
1676 | |
1677 | return (psymtab); | |
1678 | } | |
1679 | ||
1680 | void | |
1681 | discard_psymtab (struct partial_symtab *pst) | |
1682 | { | |
1683 | struct partial_symtab **prev_pst; | |
1684 | ||
1685 | /* From dbxread.c: | |
1686 | Empty psymtabs happen as a result of header files which don't | |
1687 | have any symbols in them. There can be a lot of them. But this | |
1688 | check is wrong, in that a psymtab with N_SLINE entries but | |
1689 | nothing else is not empty, but we don't realize that. Fixing | |
1690 | that without slowing things down might be tricky. */ | |
1691 | ||
0df8b418 | 1692 | /* First, snip it out of the psymtab chain. */ |
ccefe4c4 TT |
1693 | |
1694 | prev_pst = &(pst->objfile->psymtabs); | |
1695 | while ((*prev_pst) != pst) | |
1696 | prev_pst = &((*prev_pst)->next); | |
1697 | (*prev_pst) = pst->next; | |
1698 | ||
0df8b418 | 1699 | /* Next, put it on a free list for recycling. */ |
ccefe4c4 TT |
1700 | |
1701 | pst->next = pst->objfile->free_psymtabs; | |
1702 | pst->objfile->free_psymtabs = pst; | |
1703 | } | |
1704 | ||
ccefe4c4 TT |
1705 | \f |
1706 | ||
1707 | void | |
1708 | maintenance_print_psymbols (char *args, int from_tty) | |
1709 | { | |
1710 | char **argv; | |
1711 | struct ui_file *outfile; | |
1712 | struct cleanup *cleanups; | |
1713 | char *symname = NULL; | |
1714 | char *filename = DEV_TTY; | |
1715 | struct objfile *objfile; | |
1716 | struct partial_symtab *ps; | |
1717 | ||
1718 | dont_repeat (); | |
1719 | ||
1720 | if (args == NULL) | |
1721 | { | |
3e43a32a MS |
1722 | error (_("\ |
1723 | print-psymbols takes an output file name and optional symbol file name")); | |
ccefe4c4 TT |
1724 | } |
1725 | argv = gdb_buildargv (args); | |
1726 | cleanups = make_cleanup_freeargv (argv); | |
1727 | ||
1728 | if (argv[0] != NULL) | |
1729 | { | |
1730 | filename = argv[0]; | |
0df8b418 | 1731 | /* If a second arg is supplied, it is a source file name to match on. */ |
ccefe4c4 TT |
1732 | if (argv[1] != NULL) |
1733 | { | |
1734 | symname = argv[1]; | |
1735 | } | |
1736 | } | |
1737 | ||
1738 | filename = tilde_expand (filename); | |
1739 | make_cleanup (xfree, filename); | |
1740 | ||
1741 | outfile = gdb_fopen (filename, FOPEN_WT); | |
1742 | if (outfile == 0) | |
1743 | perror_with_name (filename); | |
1744 | make_cleanup_ui_file_delete (outfile); | |
1745 | ||
1746 | immediate_quit++; | |
1747 | ALL_PSYMTABS (objfile, ps) | |
0ba1096a | 1748 | if (symname == NULL || filename_cmp (symname, ps->filename) == 0) |
ccefe4c4 TT |
1749 | dump_psymtab (objfile, ps, outfile); |
1750 | immediate_quit--; | |
1751 | do_cleanups (cleanups); | |
1752 | } | |
1753 | ||
1754 | /* List all the partial symbol tables whose names match REGEXP (optional). */ | |
1755 | void | |
1756 | maintenance_info_psymtabs (char *regexp, int from_tty) | |
1757 | { | |
1758 | struct program_space *pspace; | |
1759 | struct objfile *objfile; | |
1760 | ||
1761 | if (regexp) | |
1762 | re_comp (regexp); | |
1763 | ||
1764 | ALL_PSPACES (pspace) | |
1765 | ALL_PSPACE_OBJFILES (pspace, objfile) | |
1766 | { | |
1767 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
1768 | struct partial_symtab *psymtab; | |
1769 | ||
1770 | /* We don't want to print anything for this objfile until we | |
1771 | actually find a symtab whose name matches. */ | |
1772 | int printed_objfile_start = 0; | |
1773 | ||
b11896a5 | 1774 | ALL_OBJFILE_PSYMTABS_REQUIRED (objfile, psymtab) |
ccefe4c4 TT |
1775 | { |
1776 | QUIT; | |
1777 | ||
1778 | if (! regexp | |
1779 | || re_exec (psymtab->filename)) | |
1780 | { | |
1781 | if (! printed_objfile_start) | |
1782 | { | |
1783 | printf_filtered ("{ objfile %s ", objfile->name); | |
1784 | wrap_here (" "); | |
1785 | printf_filtered ("((struct objfile *) %s)\n", | |
1786 | host_address_to_string (objfile)); | |
1787 | printed_objfile_start = 1; | |
1788 | } | |
1789 | ||
1790 | printf_filtered (" { psymtab %s ", psymtab->filename); | |
1791 | wrap_here (" "); | |
1792 | printf_filtered ("((struct partial_symtab *) %s)\n", | |
1793 | host_address_to_string (psymtab)); | |
1794 | ||
1795 | printf_filtered (" readin %s\n", | |
1796 | psymtab->readin ? "yes" : "no"); | |
1797 | printf_filtered (" fullname %s\n", | |
3e43a32a MS |
1798 | psymtab->fullname |
1799 | ? psymtab->fullname : "(null)"); | |
ccefe4c4 TT |
1800 | printf_filtered (" text addresses "); |
1801 | fputs_filtered (paddress (gdbarch, psymtab->textlow), | |
1802 | gdb_stdout); | |
1803 | printf_filtered (" -- "); | |
1804 | fputs_filtered (paddress (gdbarch, psymtab->texthigh), | |
1805 | gdb_stdout); | |
1806 | printf_filtered ("\n"); | |
9750bca9 JK |
1807 | printf_filtered (" psymtabs_addrmap_supported %s\n", |
1808 | (psymtab->psymtabs_addrmap_supported | |
1809 | ? "yes" : "no")); | |
ccefe4c4 TT |
1810 | printf_filtered (" globals "); |
1811 | if (psymtab->n_global_syms) | |
1812 | { | |
1813 | printf_filtered ("(* (struct partial_symbol **) %s @ %d)\n", | |
1814 | host_address_to_string (psymtab->objfile->global_psymbols.list | |
1815 | + psymtab->globals_offset), | |
1816 | psymtab->n_global_syms); | |
1817 | } | |
1818 | else | |
1819 | printf_filtered ("(none)\n"); | |
1820 | printf_filtered (" statics "); | |
1821 | if (psymtab->n_static_syms) | |
1822 | { | |
1823 | printf_filtered ("(* (struct partial_symbol **) %s @ %d)\n", | |
1824 | host_address_to_string (psymtab->objfile->static_psymbols.list | |
1825 | + psymtab->statics_offset), | |
1826 | psymtab->n_static_syms); | |
1827 | } | |
1828 | else | |
1829 | printf_filtered ("(none)\n"); | |
1830 | printf_filtered (" dependencies "); | |
1831 | if (psymtab->number_of_dependencies) | |
1832 | { | |
1833 | int i; | |
1834 | ||
1835 | printf_filtered ("{\n"); | |
1836 | for (i = 0; i < psymtab->number_of_dependencies; i++) | |
1837 | { | |
1838 | struct partial_symtab *dep = psymtab->dependencies[i]; | |
1839 | ||
1840 | /* Note the string concatenation there --- no comma. */ | |
1841 | printf_filtered (" psymtab %s " | |
1842 | "((struct partial_symtab *) %s)\n", | |
1843 | dep->filename, | |
1844 | host_address_to_string (dep)); | |
1845 | } | |
1846 | printf_filtered (" }\n"); | |
1847 | } | |
1848 | else | |
1849 | printf_filtered ("(none)\n"); | |
1850 | printf_filtered (" }\n"); | |
1851 | } | |
1852 | } | |
1853 | ||
1854 | if (printed_objfile_start) | |
1855 | printf_filtered ("}\n"); | |
1856 | } | |
1857 | } | |
1858 | ||
1859 | /* Check consistency of psymtabs and symtabs. */ | |
1860 | ||
1861 | void | |
1862 | maintenance_check_symtabs (char *ignore, int from_tty) | |
1863 | { | |
1864 | struct symbol *sym; | |
1865 | struct partial_symbol **psym; | |
1866 | struct symtab *s = NULL; | |
1867 | struct partial_symtab *ps; | |
1868 | struct blockvector *bv; | |
1869 | struct objfile *objfile; | |
1870 | struct block *b; | |
1871 | int length; | |
1872 | ||
1873 | ALL_PSYMTABS (objfile, ps) | |
1874 | { | |
1875 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
ad3bbd48 | 1876 | |
ccefe4c4 TT |
1877 | s = PSYMTAB_TO_SYMTAB (ps); |
1878 | if (s == NULL) | |
1879 | continue; | |
1880 | bv = BLOCKVECTOR (s); | |
1881 | b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
1882 | psym = ps->objfile->static_psymbols.list + ps->statics_offset; | |
1883 | length = ps->n_static_syms; | |
1884 | while (length--) | |
1885 | { | |
1886 | sym = lookup_block_symbol (b, SYMBOL_LINKAGE_NAME (*psym), | |
1887 | SYMBOL_DOMAIN (*psym)); | |
1888 | if (!sym) | |
1889 | { | |
1890 | printf_filtered ("Static symbol `"); | |
1891 | puts_filtered (SYMBOL_LINKAGE_NAME (*psym)); | |
1892 | printf_filtered ("' only found in "); | |
1893 | puts_filtered (ps->filename); | |
1894 | printf_filtered (" psymtab\n"); | |
1895 | } | |
1896 | psym++; | |
1897 | } | |
1898 | b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
1899 | psym = ps->objfile->global_psymbols.list + ps->globals_offset; | |
1900 | length = ps->n_global_syms; | |
1901 | while (length--) | |
1902 | { | |
1903 | sym = lookup_block_symbol (b, SYMBOL_LINKAGE_NAME (*psym), | |
1904 | SYMBOL_DOMAIN (*psym)); | |
1905 | if (!sym) | |
1906 | { | |
1907 | printf_filtered ("Global symbol `"); | |
1908 | puts_filtered (SYMBOL_LINKAGE_NAME (*psym)); | |
1909 | printf_filtered ("' only found in "); | |
1910 | puts_filtered (ps->filename); | |
1911 | printf_filtered (" psymtab\n"); | |
1912 | } | |
1913 | psym++; | |
1914 | } | |
1915 | if (ps->texthigh < ps->textlow) | |
1916 | { | |
1917 | printf_filtered ("Psymtab "); | |
1918 | puts_filtered (ps->filename); | |
1919 | printf_filtered (" covers bad range "); | |
1920 | fputs_filtered (paddress (gdbarch, ps->textlow), gdb_stdout); | |
1921 | printf_filtered (" - "); | |
1922 | fputs_filtered (paddress (gdbarch, ps->texthigh), gdb_stdout); | |
1923 | printf_filtered ("\n"); | |
1924 | continue; | |
1925 | } | |
1926 | if (ps->texthigh == 0) | |
1927 | continue; | |
1928 | if (ps->textlow < BLOCK_START (b) || ps->texthigh > BLOCK_END (b)) | |
1929 | { | |
1930 | printf_filtered ("Psymtab "); | |
1931 | puts_filtered (ps->filename); | |
1932 | printf_filtered (" covers "); | |
1933 | fputs_filtered (paddress (gdbarch, ps->textlow), gdb_stdout); | |
1934 | printf_filtered (" - "); | |
1935 | fputs_filtered (paddress (gdbarch, ps->texthigh), gdb_stdout); | |
1936 | printf_filtered (" but symtab covers only "); | |
1937 | fputs_filtered (paddress (gdbarch, BLOCK_START (b)), gdb_stdout); | |
1938 | printf_filtered (" - "); | |
1939 | fputs_filtered (paddress (gdbarch, BLOCK_END (b)), gdb_stdout); | |
1940 | printf_filtered ("\n"); | |
1941 | } | |
1942 | } | |
1943 | } | |
1944 | ||
1945 | \f | |
1946 | ||
1947 | void | |
f8eba3c6 TT |
1948 | expand_partial_symbol_names (int (*fun) (const struct language_defn *, |
1949 | const char *, void *), | |
1950 | void *data) | |
ccefe4c4 TT |
1951 | { |
1952 | struct objfile *objfile; | |
1953 | ||
1954 | ALL_OBJFILES (objfile) | |
1955 | { | |
1956 | if (objfile->sf) | |
7b08b9eb JK |
1957 | objfile->sf->qf->expand_symtabs_matching (objfile, NULL, fun, |
1958 | ALL_DOMAIN, data); | |
ccefe4c4 TT |
1959 | } |
1960 | } | |
1961 | ||
1962 | void | |
74e2f255 DE |
1963 | map_partial_symbol_filenames (symbol_filename_ftype *fun, void *data, |
1964 | int need_fullname) | |
ccefe4c4 TT |
1965 | { |
1966 | struct objfile *objfile; | |
1967 | ||
1968 | ALL_OBJFILES (objfile) | |
1969 | { | |
1970 | if (objfile->sf) | |
74e2f255 DE |
1971 | objfile->sf->qf->map_symbol_filenames (objfile, fun, data, |
1972 | need_fullname); | |
ccefe4c4 TT |
1973 | } |
1974 | } |