Commit | Line | Data |
---|---|---|
ccefe4c4 TT |
1 | /* Partial symbol tables. |
2 | ||
7b6bb8da | 3 | Copyright (C) 2009, 2010, 2011 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 | ||
ccefe4c4 TT |
128 | /* Lookup the partial symbol table of a source file named NAME. |
129 | *If* there is no '/' in the name, a match after a '/' | |
130 | in the psymtab filename will also work. */ | |
131 | ||
132 | static struct partial_symtab * | |
133 | lookup_partial_symtab (struct objfile *objfile, const char *name, | |
134 | const char *full_path, const char *real_path) | |
135 | { | |
136 | struct partial_symtab *pst; | |
c011a4f4 | 137 | const char *name_basename = lbasename (name); |
ccefe4c4 | 138 | |
b11896a5 | 139 | ALL_OBJFILE_PSYMTABS_REQUIRED (objfile, pst) |
ccefe4c4 TT |
140 | { |
141 | if (FILENAME_CMP (name, pst->filename) == 0) | |
142 | { | |
143 | return (pst); | |
144 | } | |
145 | ||
c011a4f4 DE |
146 | /* Before we invoke realpath, which can get expensive when many |
147 | files are involved, do a quick comparison of the basenames. */ | |
148 | if (! basenames_may_differ | |
149 | && FILENAME_CMP (name_basename, lbasename (pst->filename)) != 0) | |
150 | continue; | |
151 | ||
ccefe4c4 TT |
152 | /* If the user gave us an absolute path, try to find the file in |
153 | this symtab and use its absolute path. */ | |
154 | if (full_path != NULL) | |
155 | { | |
156 | psymtab_to_fullname (pst); | |
157 | if (pst->fullname != NULL | |
158 | && FILENAME_CMP (full_path, pst->fullname) == 0) | |
159 | { | |
160 | return pst; | |
161 | } | |
162 | } | |
163 | ||
164 | if (real_path != NULL) | |
165 | { | |
166 | char *rp = NULL; | |
167 | psymtab_to_fullname (pst); | |
168 | if (pst->fullname != NULL) | |
169 | { | |
170 | rp = gdb_realpath (pst->fullname); | |
171 | make_cleanup (xfree, rp); | |
172 | } | |
173 | if (rp != NULL && FILENAME_CMP (real_path, rp) == 0) | |
174 | { | |
175 | return pst; | |
176 | } | |
177 | } | |
178 | } | |
179 | ||
0df8b418 | 180 | /* Now, search for a matching tail (only if name doesn't have any dirs). */ |
ccefe4c4 | 181 | |
c011a4f4 | 182 | if (name_basename == name) |
b11896a5 | 183 | ALL_OBJFILE_PSYMTABS_REQUIRED (objfile, pst) |
ccefe4c4 TT |
184 | { |
185 | if (FILENAME_CMP (lbasename (pst->filename), name) == 0) | |
186 | return (pst); | |
187 | } | |
188 | ||
189 | return (NULL); | |
190 | } | |
191 | ||
192 | static int | |
193 | lookup_symtab_via_partial_symtab (struct objfile *objfile, const char *name, | |
194 | const char *full_path, const char *real_path, | |
195 | struct symtab **result) | |
196 | { | |
197 | struct partial_symtab *ps; | |
198 | ||
199 | ps = lookup_partial_symtab (objfile, name, full_path, real_path); | |
200 | if (!ps) | |
201 | return 0; | |
202 | ||
203 | if (ps->readin) | |
204 | error (_("Internal: readin %s pst for `%s' found when no symtab found."), | |
205 | ps->filename, name); | |
206 | ||
207 | *result = PSYMTAB_TO_SYMTAB (ps); | |
208 | return 1; | |
209 | } | |
210 | ||
211 | /* Find which partial symtab contains PC and SECTION starting at psymtab PST. | |
212 | We may find a different psymtab than PST. See FIND_PC_SECT_PSYMTAB. */ | |
213 | ||
214 | static struct partial_symtab * | |
215 | find_pc_sect_psymtab_closer (CORE_ADDR pc, struct obj_section *section, | |
216 | struct partial_symtab *pst, | |
217 | struct minimal_symbol *msymbol) | |
218 | { | |
219 | struct objfile *objfile = pst->objfile; | |
220 | struct partial_symtab *tpst; | |
221 | struct partial_symtab *best_pst = pst; | |
222 | CORE_ADDR best_addr = pst->textlow; | |
223 | ||
224 | /* An objfile that has its functions reordered might have | |
225 | many partial symbol tables containing the PC, but | |
226 | we want the partial symbol table that contains the | |
227 | function containing the PC. */ | |
228 | if (!(objfile->flags & OBJF_REORDERED) && | |
0df8b418 | 229 | section == 0) /* Can't validate section this way. */ |
ccefe4c4 TT |
230 | return pst; |
231 | ||
232 | if (msymbol == NULL) | |
233 | return (pst); | |
234 | ||
235 | /* The code range of partial symtabs sometimes overlap, so, in | |
236 | the loop below, we need to check all partial symtabs and | |
0df8b418 | 237 | find the one that fits better for the given PC address. We |
ccefe4c4 TT |
238 | select the partial symtab that contains a symbol whose |
239 | address is closest to the PC address. By closest we mean | |
240 | that find_pc_sect_symbol returns the symbol with address | |
241 | that is closest and still less than the given PC. */ | |
242 | for (tpst = pst; tpst != NULL; tpst = tpst->next) | |
243 | { | |
244 | if (pc >= tpst->textlow && pc < tpst->texthigh) | |
245 | { | |
246 | struct partial_symbol *p; | |
247 | CORE_ADDR this_addr; | |
248 | ||
249 | /* NOTE: This assumes that every psymbol has a | |
250 | corresponding msymbol, which is not necessarily | |
251 | true; the debug info might be much richer than the | |
252 | object's symbol table. */ | |
253 | p = find_pc_sect_psymbol (tpst, pc, section); | |
254 | if (p != NULL | |
255 | && SYMBOL_VALUE_ADDRESS (p) | |
256 | == SYMBOL_VALUE_ADDRESS (msymbol)) | |
257 | return tpst; | |
258 | ||
259 | /* Also accept the textlow value of a psymtab as a | |
260 | "symbol", to provide some support for partial | |
261 | symbol tables with line information but no debug | |
262 | symbols (e.g. those produced by an assembler). */ | |
263 | if (p != NULL) | |
264 | this_addr = SYMBOL_VALUE_ADDRESS (p); | |
265 | else | |
266 | this_addr = tpst->textlow; | |
267 | ||
268 | /* Check whether it is closer than our current | |
269 | BEST_ADDR. Since this symbol address is | |
270 | necessarily lower or equal to PC, the symbol closer | |
271 | to PC is the symbol which address is the highest. | |
272 | This way we return the psymtab which contains such | |
0df8b418 | 273 | best match symbol. This can help in cases where the |
ccefe4c4 TT |
274 | symbol information/debuginfo is not complete, like |
275 | for instance on IRIX6 with gcc, where no debug info | |
0df8b418 MS |
276 | is emitted for statics. (See also the nodebug.exp |
277 | testcase.) */ | |
ccefe4c4 TT |
278 | if (this_addr > best_addr) |
279 | { | |
280 | best_addr = this_addr; | |
281 | best_pst = tpst; | |
282 | } | |
283 | } | |
284 | } | |
285 | return best_pst; | |
286 | } | |
287 | ||
288 | /* Find which partial symtab contains PC and SECTION. Return 0 if | |
289 | none. We return the psymtab that contains a symbol whose address | |
290 | exactly matches PC, or, if we cannot find an exact match, the | |
291 | psymtab that contains a symbol whose address is closest to PC. */ | |
292 | static struct partial_symtab * | |
293 | find_pc_sect_psymtab (struct objfile *objfile, CORE_ADDR pc, | |
294 | struct obj_section *section, | |
295 | struct minimal_symbol *msymbol) | |
296 | { | |
297 | struct partial_symtab *pst; | |
298 | ||
299 | /* Try just the PSYMTABS_ADDRMAP mapping first as it has better granularity | |
300 | than the later used TEXTLOW/TEXTHIGH one. */ | |
301 | ||
302 | if (objfile->psymtabs_addrmap != NULL) | |
303 | { | |
304 | pst = addrmap_find (objfile->psymtabs_addrmap, pc); | |
305 | if (pst != NULL) | |
306 | { | |
307 | /* FIXME: addrmaps currently do not handle overlayed sections, | |
308 | so fall back to the non-addrmap case if we're debugging | |
309 | overlays and the addrmap returned the wrong section. */ | |
310 | if (overlay_debugging && msymbol && section) | |
311 | { | |
312 | struct partial_symbol *p; | |
ad3bbd48 | 313 | |
ccefe4c4 TT |
314 | /* NOTE: This assumes that every psymbol has a |
315 | corresponding msymbol, which is not necessarily | |
316 | true; the debug info might be much richer than the | |
317 | object's symbol table. */ | |
318 | p = find_pc_sect_psymbol (pst, pc, section); | |
319 | if (!p | |
320 | || SYMBOL_VALUE_ADDRESS (p) | |
321 | != SYMBOL_VALUE_ADDRESS (msymbol)) | |
322 | goto next; | |
323 | } | |
324 | ||
325 | /* We do not try to call FIND_PC_SECT_PSYMTAB_CLOSER as | |
326 | PSYMTABS_ADDRMAP we used has already the best 1-byte | |
327 | granularity and FIND_PC_SECT_PSYMTAB_CLOSER may mislead us into | |
328 | a worse chosen section due to the TEXTLOW/TEXTHIGH ranges | |
329 | overlap. */ | |
330 | ||
331 | return pst; | |
332 | } | |
333 | } | |
334 | ||
335 | next: | |
336 | ||
337 | /* Existing PSYMTABS_ADDRMAP mapping is present even for PARTIAL_SYMTABs | |
338 | which still have no corresponding full SYMTABs read. But it is not | |
339 | present for non-DWARF2 debug infos not supporting PSYMTABS_ADDRMAP in GDB | |
340 | so far. */ | |
341 | ||
342 | /* Check even OBJFILE with non-zero PSYMTABS_ADDRMAP as only several of | |
343 | its CUs may be missing in PSYMTABS_ADDRMAP as they may be varying | |
344 | debug info type in single OBJFILE. */ | |
345 | ||
b11896a5 | 346 | ALL_OBJFILE_PSYMTABS_REQUIRED (objfile, pst) |
ccefe4c4 TT |
347 | if (pc >= pst->textlow && pc < pst->texthigh) |
348 | { | |
349 | struct partial_symtab *best_pst; | |
350 | ||
351 | best_pst = find_pc_sect_psymtab_closer (pc, section, pst, msymbol); | |
352 | if (best_pst != NULL) | |
353 | return best_pst; | |
354 | } | |
355 | ||
356 | return NULL; | |
357 | } | |
358 | ||
359 | static struct symtab * | |
360 | find_pc_sect_symtab_from_partial (struct objfile *objfile, | |
361 | struct minimal_symbol *msymbol, | |
362 | CORE_ADDR pc, struct obj_section *section, | |
363 | int warn_if_readin) | |
364 | { | |
365 | struct partial_symtab *ps = find_pc_sect_psymtab (objfile, pc, section, | |
366 | msymbol); | |
367 | if (ps) | |
368 | { | |
369 | if (warn_if_readin && ps->readin) | |
370 | /* Might want to error() here (in case symtab is corrupt and | |
371 | will cause a core dump), but maybe we can successfully | |
372 | continue, so let's not. */ | |
373 | warning (_("\ | |
374 | (Internal error: pc %s in read in psymtab, but not in symtab.)\n"), | |
375 | paddress (get_objfile_arch (ps->objfile), pc)); | |
376 | return PSYMTAB_TO_SYMTAB (ps); | |
377 | } | |
378 | return NULL; | |
379 | } | |
380 | ||
381 | /* Find which partial symbol within a psymtab matches PC and SECTION. | |
382 | Return 0 if none. */ | |
383 | ||
384 | static struct partial_symbol * | |
385 | find_pc_sect_psymbol (struct partial_symtab *psymtab, CORE_ADDR pc, | |
386 | struct obj_section *section) | |
387 | { | |
388 | struct partial_symbol *best = NULL, *p, **pp; | |
389 | CORE_ADDR best_pc; | |
390 | ||
391 | gdb_assert (psymtab != NULL); | |
392 | ||
0df8b418 | 393 | /* Cope with programs that start at address 0. */ |
ccefe4c4 TT |
394 | best_pc = (psymtab->textlow != 0) ? psymtab->textlow - 1 : 0; |
395 | ||
396 | /* Search the global symbols as well as the static symbols, so that | |
397 | find_pc_partial_function doesn't use a minimal symbol and thus | |
398 | cache a bad endaddr. */ | |
399 | for (pp = psymtab->objfile->global_psymbols.list + psymtab->globals_offset; | |
400 | (pp - (psymtab->objfile->global_psymbols.list + psymtab->globals_offset) | |
401 | < psymtab->n_global_syms); | |
402 | pp++) | |
403 | { | |
404 | p = *pp; | |
405 | if (SYMBOL_DOMAIN (p) == VAR_DOMAIN | |
406 | && SYMBOL_CLASS (p) == LOC_BLOCK | |
407 | && pc >= SYMBOL_VALUE_ADDRESS (p) | |
408 | && (SYMBOL_VALUE_ADDRESS (p) > best_pc | |
409 | || (psymtab->textlow == 0 | |
410 | && best_pc == 0 && SYMBOL_VALUE_ADDRESS (p) == 0))) | |
411 | { | |
0df8b418 | 412 | if (section) /* Match on a specific section. */ |
ccefe4c4 TT |
413 | { |
414 | fixup_psymbol_section (p, psymtab->objfile); | |
415 | if (!matching_obj_sections (SYMBOL_OBJ_SECTION (p), section)) | |
416 | continue; | |
417 | } | |
418 | best_pc = SYMBOL_VALUE_ADDRESS (p); | |
419 | best = p; | |
420 | } | |
421 | } | |
422 | ||
423 | for (pp = psymtab->objfile->static_psymbols.list + psymtab->statics_offset; | |
424 | (pp - (psymtab->objfile->static_psymbols.list + psymtab->statics_offset) | |
425 | < psymtab->n_static_syms); | |
426 | pp++) | |
427 | { | |
428 | p = *pp; | |
429 | if (SYMBOL_DOMAIN (p) == VAR_DOMAIN | |
430 | && SYMBOL_CLASS (p) == LOC_BLOCK | |
431 | && pc >= SYMBOL_VALUE_ADDRESS (p) | |
432 | && (SYMBOL_VALUE_ADDRESS (p) > best_pc | |
433 | || (psymtab->textlow == 0 | |
434 | && best_pc == 0 && SYMBOL_VALUE_ADDRESS (p) == 0))) | |
435 | { | |
0df8b418 | 436 | if (section) /* Match on a specific section. */ |
ccefe4c4 TT |
437 | { |
438 | fixup_psymbol_section (p, psymtab->objfile); | |
439 | if (!matching_obj_sections (SYMBOL_OBJ_SECTION (p), section)) | |
440 | continue; | |
441 | } | |
442 | best_pc = SYMBOL_VALUE_ADDRESS (p); | |
443 | best = p; | |
444 | } | |
445 | } | |
446 | ||
447 | return best; | |
448 | } | |
449 | ||
450 | static struct partial_symbol * | |
451 | fixup_psymbol_section (struct partial_symbol *psym, struct objfile *objfile) | |
452 | { | |
453 | CORE_ADDR addr; | |
454 | ||
455 | if (!psym) | |
456 | return NULL; | |
457 | ||
458 | if (SYMBOL_OBJ_SECTION (psym)) | |
459 | return psym; | |
460 | ||
461 | gdb_assert (objfile); | |
462 | ||
463 | switch (SYMBOL_CLASS (psym)) | |
464 | { | |
465 | case LOC_STATIC: | |
466 | case LOC_LABEL: | |
467 | case LOC_BLOCK: | |
468 | addr = SYMBOL_VALUE_ADDRESS (psym); | |
469 | break; | |
470 | default: | |
471 | /* Nothing else will be listed in the minsyms -- no use looking | |
472 | it up. */ | |
473 | return psym; | |
474 | } | |
475 | ||
476 | fixup_section (&psym->ginfo, addr, objfile); | |
477 | ||
478 | return psym; | |
479 | } | |
480 | ||
481 | static struct symtab * | |
482 | lookup_symbol_aux_psymtabs (struct objfile *objfile, | |
483 | int block_index, const char *name, | |
484 | const domain_enum domain) | |
485 | { | |
486 | struct partial_symtab *ps; | |
487 | const int psymtab_index = (block_index == GLOBAL_BLOCK ? 1 : 0); | |
488 | ||
b11896a5 | 489 | ALL_OBJFILE_PSYMTABS_REQUIRED (objfile, ps) |
ccefe4c4 TT |
490 | { |
491 | if (!ps->readin && lookup_partial_symbol (ps, name, psymtab_index, domain)) | |
c00f8484 KS |
492 | { |
493 | struct symbol *sym = NULL; | |
494 | struct symtab *stab = PSYMTAB_TO_SYMTAB (ps); | |
495 | ||
496 | /* Some caution must be observed with overloaded functions | |
497 | and methods, since the psymtab will not contain any overload | |
498 | information (but NAME might contain it). */ | |
499 | if (stab->primary) | |
500 | { | |
501 | struct blockvector *bv = BLOCKVECTOR (stab); | |
502 | struct block *block = BLOCKVECTOR_BLOCK (bv, block_index); | |
503 | ||
504 | sym = lookup_block_symbol (block, name, domain); | |
505 | } | |
506 | ||
507 | if (sym && strcmp_iw (SYMBOL_SEARCH_NAME (sym), name) == 0) | |
508 | return stab; | |
509 | ||
510 | /* Keep looking through other psymtabs. */ | |
511 | } | |
ccefe4c4 TT |
512 | } |
513 | ||
514 | return NULL; | |
515 | } | |
516 | ||
40658b94 PH |
517 | /* Look in PST for a symbol in DOMAIN whose name matches NAME. Search |
518 | the global block of PST if GLOBAL, and otherwise the static block. | |
519 | MATCH is the comparison operation that returns true iff MATCH (s, | |
520 | NAME), where s is a SYMBOL_SEARCH_NAME. If ORDERED_COMPARE is | |
521 | non-null, the symbols in the block are assumed to be ordered | |
522 | according to it (allowing binary search). It must be compatible | |
523 | with MATCH. Returns the symbol, if found, and otherwise NULL. */ | |
524 | ||
525 | static struct partial_symbol * | |
526 | match_partial_symbol (struct partial_symtab *pst, int global, | |
527 | const char *name, domain_enum domain, | |
2edb89d3 JK |
528 | symbol_compare_ftype *match, |
529 | symbol_compare_ftype *ordered_compare) | |
40658b94 PH |
530 | { |
531 | struct partial_symbol **start, **psym; | |
532 | struct partial_symbol **top, **real_top, **bottom, **center; | |
533 | int length = (global ? pst->n_global_syms : pst->n_static_syms); | |
534 | int do_linear_search = 1; | |
535 | ||
536 | if (length == 0) | |
537 | return NULL; | |
538 | start = (global ? | |
539 | pst->objfile->global_psymbols.list + pst->globals_offset : | |
540 | pst->objfile->static_psymbols.list + pst->statics_offset); | |
541 | ||
542 | if (global && ordered_compare) /* Can use a binary search. */ | |
543 | { | |
544 | do_linear_search = 0; | |
545 | ||
546 | /* Binary search. This search is guaranteed to end with center | |
547 | pointing at the earliest partial symbol whose name might be | |
548 | correct. At that point *all* partial symbols with an | |
549 | appropriate name will be checked against the correct | |
550 | domain. */ | |
551 | ||
552 | bottom = start; | |
553 | top = start + length - 1; | |
554 | real_top = top; | |
555 | while (top > bottom) | |
556 | { | |
557 | center = bottom + (top - bottom) / 2; | |
558 | gdb_assert (center < top); | |
559 | if (!do_linear_search | |
560 | && (SYMBOL_LANGUAGE (*center) == language_java)) | |
561 | do_linear_search = 1; | |
562 | if (ordered_compare (SYMBOL_SEARCH_NAME (*center), name) >= 0) | |
563 | top = center; | |
564 | else | |
565 | bottom = center + 1; | |
566 | } | |
567 | gdb_assert (top == bottom); | |
568 | ||
569 | while (top <= real_top | |
570 | && match (SYMBOL_SEARCH_NAME (*top), name) == 0) | |
571 | { | |
572 | if (symbol_matches_domain (SYMBOL_LANGUAGE (*top), | |
573 | SYMBOL_DOMAIN (*top), domain)) | |
574 | return *top; | |
575 | top++; | |
576 | } | |
577 | } | |
578 | ||
579 | /* Can't use a binary search or else we found during the binary search that | |
580 | we should also do a linear search. */ | |
581 | ||
582 | if (do_linear_search) | |
583 | { | |
584 | for (psym = start; psym < start + length; psym++) | |
585 | { | |
586 | if (symbol_matches_domain (SYMBOL_LANGUAGE (*psym), | |
587 | SYMBOL_DOMAIN (*psym), domain) | |
588 | && match (SYMBOL_SEARCH_NAME (*psym), name) == 0) | |
589 | return *psym; | |
590 | } | |
591 | } | |
592 | ||
593 | return NULL; | |
594 | } | |
595 | ||
774b6a14 TT |
596 | static void |
597 | pre_expand_symtabs_matching_psymtabs (struct objfile *objfile, | |
8903c50d TT |
598 | enum block_enum block_kind, |
599 | const char *name, | |
774b6a14 | 600 | domain_enum domain) |
58b6ab13 | 601 | { |
774b6a14 | 602 | /* Nothing. */ |
58b6ab13 TT |
603 | } |
604 | ||
c00f8484 KS |
605 | /* Returns the name used to search psymtabs. Unlike symtabs, psymtabs do |
606 | not contain any method/function instance information (since this would | |
607 | force reading type information while reading psymtabs). Therefore, | |
608 | if NAME contains overload information, it must be stripped before searching | |
609 | psymtabs. | |
610 | ||
611 | The caller is responsible for freeing the return result. */ | |
612 | ||
613 | static char * | |
614 | psymtab_search_name (const char *name) | |
615 | { | |
616 | switch (current_language->la_language) | |
617 | { | |
618 | case language_cplus: | |
619 | case language_java: | |
620 | { | |
621 | if (strchr (name, '(')) | |
622 | { | |
623 | char *ret = cp_remove_params (name); | |
624 | ||
625 | if (ret) | |
626 | return ret; | |
627 | } | |
628 | } | |
629 | break; | |
630 | ||
631 | default: | |
632 | break; | |
633 | } | |
634 | ||
635 | return xstrdup (name); | |
636 | } | |
637 | ||
ccefe4c4 | 638 | /* Look, in partial_symtab PST, for symbol whose natural name is NAME. |
40658b94 | 639 | Check the global symbols if GLOBAL, the static symbols if not. */ |
ccefe4c4 | 640 | |
18430289 | 641 | static struct partial_symbol * |
ccefe4c4 TT |
642 | lookup_partial_symbol (struct partial_symtab *pst, const char *name, |
643 | int global, domain_enum domain) | |
644 | { | |
ccefe4c4 TT |
645 | struct partial_symbol **start, **psym; |
646 | struct partial_symbol **top, **real_top, **bottom, **center; | |
647 | int length = (global ? pst->n_global_syms : pst->n_static_syms); | |
648 | int do_linear_search = 1; | |
c00f8484 KS |
649 | char *search_name; |
650 | struct cleanup *cleanup; | |
ccefe4c4 TT |
651 | |
652 | if (length == 0) | |
653 | { | |
654 | return (NULL); | |
655 | } | |
c00f8484 KS |
656 | |
657 | search_name = psymtab_search_name (name); | |
658 | cleanup = make_cleanup (xfree, search_name); | |
ccefe4c4 TT |
659 | start = (global ? |
660 | pst->objfile->global_psymbols.list + pst->globals_offset : | |
661 | pst->objfile->static_psymbols.list + pst->statics_offset); | |
662 | ||
0df8b418 | 663 | if (global) /* This means we can use a binary search. */ |
ccefe4c4 TT |
664 | { |
665 | do_linear_search = 0; | |
666 | ||
667 | /* Binary search. This search is guaranteed to end with center | |
668 | pointing at the earliest partial symbol whose name might be | |
669 | correct. At that point *all* partial symbols with an | |
670 | appropriate name will be checked against the correct | |
671 | domain. */ | |
672 | ||
673 | bottom = start; | |
674 | top = start + length - 1; | |
675 | real_top = top; | |
676 | while (top > bottom) | |
677 | { | |
678 | center = bottom + (top - bottom) / 2; | |
679 | if (!(center < top)) | |
3e43a32a MS |
680 | internal_error (__FILE__, __LINE__, |
681 | _("failed internal consistency check")); | |
ccefe4c4 | 682 | if (!do_linear_search |
40658b94 | 683 | && SYMBOL_LANGUAGE (*center) == language_java) |
ccefe4c4 TT |
684 | { |
685 | do_linear_search = 1; | |
686 | } | |
c00f8484 KS |
687 | if (strcmp_iw_ordered (SYMBOL_SEARCH_NAME (*center), |
688 | search_name) >= 0) | |
ccefe4c4 TT |
689 | { |
690 | top = center; | |
691 | } | |
692 | else | |
693 | { | |
694 | bottom = center + 1; | |
695 | } | |
696 | } | |
697 | if (!(top == bottom)) | |
3e43a32a MS |
698 | internal_error (__FILE__, __LINE__, |
699 | _("failed internal consistency check")); | |
ccefe4c4 | 700 | |
559a7a62 JK |
701 | /* For `case_sensitivity == case_sensitive_off' strcmp_iw_ordered will |
702 | search more exactly than what matches SYMBOL_MATCHES_SEARCH_NAME. */ | |
703 | while (top >= start && SYMBOL_MATCHES_SEARCH_NAME (*top, search_name)) | |
704 | top--; | |
705 | ||
706 | /* Fixup to have a symbol which matches SYMBOL_MATCHES_SEARCH_NAME. */ | |
707 | top++; | |
708 | ||
709 | while (top <= real_top && SYMBOL_MATCHES_SEARCH_NAME (*top, search_name)) | |
ccefe4c4 TT |
710 | { |
711 | if (symbol_matches_domain (SYMBOL_LANGUAGE (*top), | |
712 | SYMBOL_DOMAIN (*top), domain)) | |
c00f8484 KS |
713 | { |
714 | do_cleanups (cleanup); | |
715 | return (*top); | |
716 | } | |
ccefe4c4 TT |
717 | top++; |
718 | } | |
719 | } | |
720 | ||
721 | /* Can't use a binary search or else we found during the binary search that | |
40658b94 | 722 | we should also do a linear search. */ |
ccefe4c4 TT |
723 | |
724 | if (do_linear_search) | |
725 | { | |
726 | for (psym = start; psym < start + length; psym++) | |
727 | { | |
728 | if (symbol_matches_domain (SYMBOL_LANGUAGE (*psym), | |
729 | SYMBOL_DOMAIN (*psym), domain) | |
c00f8484 KS |
730 | && SYMBOL_MATCHES_SEARCH_NAME (*psym, search_name)) |
731 | { | |
732 | do_cleanups (cleanup); | |
733 | return (*psym); | |
734 | } | |
ccefe4c4 TT |
735 | } |
736 | } | |
737 | ||
c00f8484 | 738 | do_cleanups (cleanup); |
ccefe4c4 TT |
739 | return (NULL); |
740 | } | |
741 | ||
742 | /* Get the symbol table that corresponds to a partial_symtab. | |
743 | This is fast after the first time you do it. In fact, there | |
744 | is an even faster macro PSYMTAB_TO_SYMTAB that does the fast | |
745 | case inline. */ | |
746 | ||
747 | static struct symtab * | |
748 | psymtab_to_symtab (struct partial_symtab *pst) | |
749 | { | |
0df8b418 | 750 | /* If it's been looked up before, return it. */ |
ccefe4c4 TT |
751 | if (pst->symtab) |
752 | return pst->symtab; | |
753 | ||
754 | /* If it has not yet been read in, read it. */ | |
755 | if (!pst->readin) | |
756 | { | |
757 | struct cleanup *back_to = increment_reading_symtab (); | |
ad3bbd48 | 758 | |
ccefe4c4 TT |
759 | (*pst->read_symtab) (pst); |
760 | do_cleanups (back_to); | |
761 | } | |
762 | ||
763 | return pst->symtab; | |
764 | } | |
765 | ||
766 | static void | |
767 | relocate_psymtabs (struct objfile *objfile, | |
768 | struct section_offsets *new_offsets, | |
769 | struct section_offsets *delta) | |
770 | { | |
771 | struct partial_symbol **psym; | |
772 | struct partial_symtab *p; | |
773 | ||
b11896a5 | 774 | ALL_OBJFILE_PSYMTABS_REQUIRED (objfile, p) |
ccefe4c4 TT |
775 | { |
776 | p->textlow += ANOFFSET (delta, SECT_OFF_TEXT (objfile)); | |
777 | p->texthigh += ANOFFSET (delta, SECT_OFF_TEXT (objfile)); | |
778 | } | |
779 | ||
780 | for (psym = objfile->global_psymbols.list; | |
781 | psym < objfile->global_psymbols.next; | |
782 | psym++) | |
783 | { | |
784 | fixup_psymbol_section (*psym, objfile); | |
785 | if (SYMBOL_SECTION (*psym) >= 0) | |
786 | SYMBOL_VALUE_ADDRESS (*psym) += ANOFFSET (delta, | |
787 | SYMBOL_SECTION (*psym)); | |
788 | } | |
789 | for (psym = objfile->static_psymbols.list; | |
790 | psym < objfile->static_psymbols.next; | |
791 | psym++) | |
792 | { | |
793 | fixup_psymbol_section (*psym, objfile); | |
794 | if (SYMBOL_SECTION (*psym) >= 0) | |
795 | SYMBOL_VALUE_ADDRESS (*psym) += ANOFFSET (delta, | |
796 | SYMBOL_SECTION (*psym)); | |
797 | } | |
798 | } | |
799 | ||
800 | static struct symtab * | |
801 | find_last_source_symtab_from_partial (struct objfile *ofp) | |
802 | { | |
ccefe4c4 TT |
803 | struct partial_symtab *ps; |
804 | struct partial_symtab *cs_pst = 0; | |
805 | ||
b11896a5 | 806 | ALL_OBJFILE_PSYMTABS_REQUIRED (ofp, ps) |
ccefe4c4 TT |
807 | { |
808 | const char *name = ps->filename; | |
809 | int len = strlen (name); | |
ad3bbd48 | 810 | |
ccefe4c4 TT |
811 | if (!(len > 2 && (strcmp (&name[len - 2], ".h") == 0 |
812 | || strcmp (name, "<<C++-namespaces>>") == 0))) | |
813 | cs_pst = ps; | |
814 | } | |
815 | ||
816 | if (cs_pst) | |
817 | { | |
818 | if (cs_pst->readin) | |
819 | { | |
820 | internal_error (__FILE__, __LINE__, | |
821 | _("select_source_symtab: " | |
822 | "readin pst found and no symtabs.")); | |
823 | } | |
824 | else | |
825 | return PSYMTAB_TO_SYMTAB (cs_pst); | |
826 | } | |
827 | return NULL; | |
828 | } | |
829 | ||
830 | static void | |
831 | forget_cached_source_info_partial (struct objfile *objfile) | |
832 | { | |
833 | struct partial_symtab *pst; | |
834 | ||
b11896a5 | 835 | ALL_OBJFILE_PSYMTABS_REQUIRED (objfile, pst) |
ccefe4c4 TT |
836 | { |
837 | if (pst->fullname != NULL) | |
838 | { | |
839 | xfree (pst->fullname); | |
840 | pst->fullname = NULL; | |
841 | } | |
842 | } | |
843 | } | |
844 | ||
845 | static void | |
846 | print_partial_symbols (struct gdbarch *gdbarch, | |
847 | struct partial_symbol **p, int count, char *what, | |
848 | struct ui_file *outfile) | |
849 | { | |
850 | fprintf_filtered (outfile, " %s partial symbols:\n", what); | |
851 | while (count-- > 0) | |
852 | { | |
853 | fprintf_filtered (outfile, " `%s'", SYMBOL_LINKAGE_NAME (*p)); | |
854 | if (SYMBOL_DEMANGLED_NAME (*p) != NULL) | |
855 | { | |
856 | fprintf_filtered (outfile, " `%s'", SYMBOL_DEMANGLED_NAME (*p)); | |
857 | } | |
858 | fputs_filtered (", ", outfile); | |
859 | switch (SYMBOL_DOMAIN (*p)) | |
860 | { | |
861 | case UNDEF_DOMAIN: | |
862 | fputs_filtered ("undefined domain, ", outfile); | |
863 | break; | |
864 | case VAR_DOMAIN: | |
0df8b418 | 865 | /* This is the usual thing -- don't print it. */ |
ccefe4c4 TT |
866 | break; |
867 | case STRUCT_DOMAIN: | |
868 | fputs_filtered ("struct domain, ", outfile); | |
869 | break; | |
870 | case LABEL_DOMAIN: | |
871 | fputs_filtered ("label domain, ", outfile); | |
872 | break; | |
873 | default: | |
874 | fputs_filtered ("<invalid domain>, ", outfile); | |
875 | break; | |
876 | } | |
877 | switch (SYMBOL_CLASS (*p)) | |
878 | { | |
879 | case LOC_UNDEF: | |
880 | fputs_filtered ("undefined", outfile); | |
881 | break; | |
882 | case LOC_CONST: | |
883 | fputs_filtered ("constant int", outfile); | |
884 | break; | |
885 | case LOC_STATIC: | |
886 | fputs_filtered ("static", outfile); | |
887 | break; | |
888 | case LOC_REGISTER: | |
889 | fputs_filtered ("register", outfile); | |
890 | break; | |
891 | case LOC_ARG: | |
892 | fputs_filtered ("pass by value", outfile); | |
893 | break; | |
894 | case LOC_REF_ARG: | |
895 | fputs_filtered ("pass by reference", outfile); | |
896 | break; | |
897 | case LOC_REGPARM_ADDR: | |
898 | fputs_filtered ("register address parameter", outfile); | |
899 | break; | |
900 | case LOC_LOCAL: | |
901 | fputs_filtered ("stack parameter", outfile); | |
902 | break; | |
903 | case LOC_TYPEDEF: | |
904 | fputs_filtered ("type", outfile); | |
905 | break; | |
906 | case LOC_LABEL: | |
907 | fputs_filtered ("label", outfile); | |
908 | break; | |
909 | case LOC_BLOCK: | |
910 | fputs_filtered ("function", outfile); | |
911 | break; | |
912 | case LOC_CONST_BYTES: | |
913 | fputs_filtered ("constant bytes", outfile); | |
914 | break; | |
915 | case LOC_UNRESOLVED: | |
916 | fputs_filtered ("unresolved", outfile); | |
917 | break; | |
918 | case LOC_OPTIMIZED_OUT: | |
919 | fputs_filtered ("optimized out", outfile); | |
920 | break; | |
921 | case LOC_COMPUTED: | |
922 | fputs_filtered ("computed at runtime", outfile); | |
923 | break; | |
924 | default: | |
925 | fputs_filtered ("<invalid location>", outfile); | |
926 | break; | |
927 | } | |
928 | fputs_filtered (", ", outfile); | |
929 | fputs_filtered (paddress (gdbarch, SYMBOL_VALUE_ADDRESS (*p)), outfile); | |
930 | fprintf_filtered (outfile, "\n"); | |
931 | p++; | |
932 | } | |
933 | } | |
934 | ||
935 | static void | |
936 | dump_psymtab (struct objfile *objfile, struct partial_symtab *psymtab, | |
937 | struct ui_file *outfile) | |
938 | { | |
939 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
940 | int i; | |
941 | ||
942 | fprintf_filtered (outfile, "\nPartial symtab for source file %s ", | |
943 | psymtab->filename); | |
944 | fprintf_filtered (outfile, "(object "); | |
945 | gdb_print_host_address (psymtab, outfile); | |
946 | fprintf_filtered (outfile, ")\n\n"); | |
947 | fprintf_unfiltered (outfile, " Read from object file %s (", | |
948 | objfile->name); | |
949 | gdb_print_host_address (objfile, outfile); | |
950 | fprintf_unfiltered (outfile, ")\n"); | |
951 | ||
952 | if (psymtab->readin) | |
953 | { | |
954 | fprintf_filtered (outfile, | |
955 | " Full symtab was read (at "); | |
956 | gdb_print_host_address (psymtab->symtab, outfile); | |
957 | fprintf_filtered (outfile, " by function at "); | |
958 | gdb_print_host_address (psymtab->read_symtab, outfile); | |
959 | fprintf_filtered (outfile, ")\n"); | |
960 | } | |
961 | ||
962 | fprintf_filtered (outfile, " Relocate symbols by "); | |
963 | for (i = 0; i < psymtab->objfile->num_sections; ++i) | |
964 | { | |
965 | if (i != 0) | |
966 | fprintf_filtered (outfile, ", "); | |
967 | wrap_here (" "); | |
968 | fputs_filtered (paddress (gdbarch, | |
969 | ANOFFSET (psymtab->section_offsets, i)), | |
970 | outfile); | |
971 | } | |
972 | fprintf_filtered (outfile, "\n"); | |
973 | ||
974 | fprintf_filtered (outfile, " Symbols cover text addresses "); | |
975 | fputs_filtered (paddress (gdbarch, psymtab->textlow), outfile); | |
976 | fprintf_filtered (outfile, "-"); | |
977 | fputs_filtered (paddress (gdbarch, psymtab->texthigh), outfile); | |
978 | fprintf_filtered (outfile, "\n"); | |
979 | fprintf_filtered (outfile, " Depends on %d other partial symtabs.\n", | |
980 | psymtab->number_of_dependencies); | |
981 | for (i = 0; i < psymtab->number_of_dependencies; i++) | |
982 | { | |
983 | fprintf_filtered (outfile, " %d ", i); | |
984 | gdb_print_host_address (psymtab->dependencies[i], outfile); | |
985 | fprintf_filtered (outfile, " %s\n", | |
986 | psymtab->dependencies[i]->filename); | |
987 | } | |
988 | if (psymtab->n_global_syms > 0) | |
989 | { | |
990 | print_partial_symbols (gdbarch, | |
991 | objfile->global_psymbols.list | |
992 | + psymtab->globals_offset, | |
993 | psymtab->n_global_syms, "Global", outfile); | |
994 | } | |
995 | if (psymtab->n_static_syms > 0) | |
996 | { | |
997 | print_partial_symbols (gdbarch, | |
998 | objfile->static_psymbols.list | |
999 | + psymtab->statics_offset, | |
1000 | psymtab->n_static_syms, "Static", outfile); | |
1001 | } | |
1002 | fprintf_filtered (outfile, "\n"); | |
1003 | } | |
1004 | ||
1005 | static void | |
1006 | print_psymtab_stats_for_objfile (struct objfile *objfile) | |
1007 | { | |
1008 | int i; | |
1009 | struct partial_symtab *ps; | |
ad3bbd48 | 1010 | |
ccefe4c4 | 1011 | i = 0; |
b11896a5 | 1012 | ALL_OBJFILE_PSYMTABS_REQUIRED (objfile, ps) |
ccefe4c4 TT |
1013 | { |
1014 | if (ps->readin == 0) | |
1015 | i++; | |
1016 | } | |
1017 | printf_filtered (_(" Number of psym tables (not yet expanded): %d\n"), i); | |
1018 | } | |
1019 | ||
1020 | static void | |
1021 | dump_psymtabs_for_objfile (struct objfile *objfile) | |
1022 | { | |
1023 | struct partial_symtab *psymtab; | |
1024 | ||
1025 | if (objfile->psymtabs) | |
1026 | { | |
1027 | printf_filtered ("Psymtabs:\n"); | |
1028 | for (psymtab = objfile->psymtabs; | |
1029 | psymtab != NULL; | |
1030 | psymtab = psymtab->next) | |
1031 | { | |
1032 | printf_filtered ("%s at ", | |
1033 | psymtab->filename); | |
1034 | gdb_print_host_address (psymtab, gdb_stdout); | |
1035 | printf_filtered (", "); | |
1036 | if (psymtab->objfile != objfile) | |
1037 | { | |
1038 | printf_filtered ("NOT ON CHAIN! "); | |
1039 | } | |
1040 | wrap_here (" "); | |
1041 | } | |
1042 | printf_filtered ("\n\n"); | |
1043 | } | |
1044 | } | |
1045 | ||
1046 | /* Look through the partial symtabs for all symbols which begin | |
0df8b418 | 1047 | by matching FUNC_NAME. Make sure we read that symbol table in. */ |
ccefe4c4 TT |
1048 | |
1049 | static void | |
1050 | read_symtabs_for_function (struct objfile *objfile, const char *func_name) | |
1051 | { | |
1052 | struct partial_symtab *ps; | |
1053 | ||
b11896a5 | 1054 | ALL_OBJFILE_PSYMTABS_REQUIRED (objfile, ps) |
ccefe4c4 TT |
1055 | { |
1056 | if (ps->readin) | |
1057 | continue; | |
1058 | ||
1059 | if ((lookup_partial_symbol (ps, func_name, 1, VAR_DOMAIN) | |
1060 | != NULL) | |
1061 | || (lookup_partial_symbol (ps, func_name, 0, VAR_DOMAIN) | |
1062 | != NULL)) | |
1063 | psymtab_to_symtab (ps); | |
1064 | } | |
1065 | } | |
1066 | ||
1067 | static void | |
1068 | expand_partial_symbol_tables (struct objfile *objfile) | |
1069 | { | |
1070 | struct partial_symtab *psymtab; | |
1071 | ||
b11896a5 | 1072 | ALL_OBJFILE_PSYMTABS_REQUIRED (objfile, psymtab) |
ccefe4c4 TT |
1073 | { |
1074 | psymtab_to_symtab (psymtab); | |
1075 | } | |
1076 | } | |
1077 | ||
1078 | static void | |
1079 | read_psymtabs_with_filename (struct objfile *objfile, const char *filename) | |
1080 | { | |
1081 | struct partial_symtab *p; | |
1082 | ||
b11896a5 | 1083 | ALL_OBJFILE_PSYMTABS_REQUIRED (objfile, p) |
ccefe4c4 | 1084 | { |
0ba1096a | 1085 | if (filename_cmp (filename, p->filename) == 0) |
ccefe4c4 TT |
1086 | PSYMTAB_TO_SYMTAB (p); |
1087 | } | |
1088 | } | |
1089 | ||
ccefe4c4 TT |
1090 | static void |
1091 | map_symbol_filenames_psymtab (struct objfile *objfile, | |
74e2f255 DE |
1092 | symbol_filename_ftype *fun, void *data, |
1093 | int need_fullname) | |
ccefe4c4 TT |
1094 | { |
1095 | struct partial_symtab *ps; | |
1096 | ||
b11896a5 | 1097 | ALL_OBJFILE_PSYMTABS_REQUIRED (objfile, ps) |
ccefe4c4 TT |
1098 | { |
1099 | const char *fullname; | |
1100 | ||
1101 | if (ps->readin) | |
1102 | continue; | |
1103 | ||
821296b7 | 1104 | QUIT; |
74e2f255 DE |
1105 | if (need_fullname) |
1106 | fullname = psymtab_to_fullname (ps); | |
1107 | else | |
1108 | fullname = NULL; | |
2837d59e | 1109 | (*fun) (ps->filename, fullname, data); |
ccefe4c4 TT |
1110 | } |
1111 | } | |
1112 | ||
1113 | int find_and_open_source (const char *filename, | |
1114 | const char *dirname, | |
1115 | char **fullname); | |
1116 | ||
1117 | /* Finds the fullname that a partial_symtab represents. | |
1118 | ||
1119 | If this functions finds the fullname, it will save it in ps->fullname | |
1120 | and it will also return the value. | |
1121 | ||
1122 | If this function fails to find the file that this partial_symtab represents, | |
1123 | NULL will be returned and ps->fullname will be set to NULL. */ | |
256f06f3 | 1124 | |
ccefe4c4 TT |
1125 | static char * |
1126 | psymtab_to_fullname (struct partial_symtab *ps) | |
1127 | { | |
1128 | int r; | |
1129 | ||
1130 | if (!ps) | |
1131 | return NULL; | |
1132 | ||
256f06f3 DE |
1133 | /* Use cached copy if we have it. |
1134 | We rely on forget_cached_source_info being called appropriately | |
1135 | to handle cases like the file being moved. */ | |
1136 | if (ps->fullname) | |
1137 | return ps->fullname; | |
1138 | ||
ccefe4c4 TT |
1139 | r = find_and_open_source (ps->filename, ps->dirname, &ps->fullname); |
1140 | ||
1141 | if (r >= 0) | |
1142 | { | |
1143 | close (r); | |
1144 | return ps->fullname; | |
1145 | } | |
1146 | ||
1147 | return NULL; | |
1148 | } | |
1149 | ||
dd786858 | 1150 | static const char * |
ccefe4c4 TT |
1151 | find_symbol_file_from_partial (struct objfile *objfile, const char *name) |
1152 | { | |
1153 | struct partial_symtab *pst; | |
1154 | ||
b11896a5 | 1155 | ALL_OBJFILE_PSYMTABS_REQUIRED (objfile, pst) |
ccefe4c4 TT |
1156 | { |
1157 | if (lookup_partial_symbol (pst, name, 1, VAR_DOMAIN)) | |
1158 | return pst->filename; | |
1159 | } | |
1160 | return NULL; | |
1161 | } | |
1162 | ||
40658b94 PH |
1163 | /* For all symbols, s, in BLOCK that are in NAMESPACE and match NAME |
1164 | according to the function MATCH, call CALLBACK(BLOCK, s, DATA). | |
1165 | BLOCK is assumed to come from OBJFILE. Returns 1 iff CALLBACK | |
1166 | ever returns non-zero, and otherwise returns 0. */ | |
ccefe4c4 | 1167 | |
40658b94 PH |
1168 | static int |
1169 | map_block (const char *name, domain_enum namespace, struct objfile *objfile, | |
1170 | struct block *block, | |
1171 | int (*callback) (struct block *, struct symbol *, void *), | |
2edb89d3 | 1172 | void *data, symbol_compare_ftype *match) |
ccefe4c4 | 1173 | { |
40658b94 PH |
1174 | struct dict_iterator iter; |
1175 | struct symbol *sym; | |
ccefe4c4 | 1176 | |
40658b94 PH |
1177 | for (sym = dict_iter_match_first (BLOCK_DICT (block), name, match, &iter); |
1178 | sym != NULL; sym = dict_iter_match_next (name, match, &iter)) | |
ccefe4c4 | 1179 | { |
40658b94 PH |
1180 | if (symbol_matches_domain (SYMBOL_LANGUAGE (sym), |
1181 | SYMBOL_DOMAIN (sym), namespace)) | |
1182 | { | |
1183 | if (callback (block, sym, data)) | |
1184 | return 1; | |
1185 | } | |
ccefe4c4 TT |
1186 | } |
1187 | ||
40658b94 | 1188 | return 0; |
ccefe4c4 TT |
1189 | } |
1190 | ||
40658b94 PH |
1191 | /* Psymtab version of map_matching_symbols. See its definition in |
1192 | the definition of quick_symbol_functions in symfile.h. */ | |
1193 | ||
ccefe4c4 | 1194 | static void |
40658b94 PH |
1195 | map_matching_symbols_psymtab (const char *name, domain_enum namespace, |
1196 | struct objfile *objfile, int global, | |
1197 | int (*callback) (struct block *, | |
1198 | struct symbol *, void *), | |
1199 | void *data, | |
2edb89d3 JK |
1200 | symbol_compare_ftype *match, |
1201 | symbol_compare_ftype *ordered_compare) | |
ccefe4c4 | 1202 | { |
40658b94 | 1203 | const int block_kind = global ? GLOBAL_BLOCK : STATIC_BLOCK; |
ccefe4c4 TT |
1204 | struct partial_symtab *ps; |
1205 | ||
b11896a5 | 1206 | ALL_OBJFILE_PSYMTABS_REQUIRED (objfile, ps) |
ccefe4c4 TT |
1207 | { |
1208 | QUIT; | |
1209 | if (ps->readin | |
40658b94 PH |
1210 | || match_partial_symbol (ps, global, name, namespace, match, |
1211 | ordered_compare)) | |
ccefe4c4 TT |
1212 | { |
1213 | struct symtab *s = PSYMTAB_TO_SYMTAB (ps); | |
40658b94 | 1214 | struct block *block; |
ad3bbd48 | 1215 | |
ccefe4c4 TT |
1216 | if (s == NULL || !s->primary) |
1217 | continue; | |
40658b94 PH |
1218 | block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), block_kind); |
1219 | if (map_block (name, namespace, objfile, block, | |
1220 | callback, data, match)) | |
1221 | return; | |
1222 | if (callback (block, NULL, data)) | |
1223 | return; | |
ccefe4c4 TT |
1224 | } |
1225 | } | |
40658b94 | 1226 | } |
ccefe4c4 TT |
1227 | |
1228 | static void | |
1229 | expand_symtabs_matching_via_partial (struct objfile *objfile, | |
3e43a32a MS |
1230 | int (*file_matcher) (const char *, |
1231 | void *), | |
1232 | int (*name_matcher) (const char *, | |
1233 | void *), | |
8903c50d | 1234 | enum search_domain kind, |
ccefe4c4 TT |
1235 | void *data) |
1236 | { | |
1237 | struct partial_symtab *ps; | |
1238 | ||
b11896a5 | 1239 | ALL_OBJFILE_PSYMTABS_REQUIRED (objfile, ps) |
ccefe4c4 TT |
1240 | { |
1241 | struct partial_symbol **psym; | |
1242 | struct partial_symbol **bound, **gbound, **sbound; | |
1243 | int keep_going = 1; | |
1244 | ||
1245 | if (ps->readin) | |
1246 | continue; | |
1247 | ||
7b08b9eb | 1248 | if (file_matcher && ! (*file_matcher) (ps->filename, data)) |
ccefe4c4 TT |
1249 | continue; |
1250 | ||
3e43a32a MS |
1251 | gbound = objfile->global_psymbols.list |
1252 | + ps->globals_offset + ps->n_global_syms; | |
1253 | sbound = objfile->static_psymbols.list | |
1254 | + ps->statics_offset + ps->n_static_syms; | |
ccefe4c4 TT |
1255 | bound = gbound; |
1256 | ||
1257 | /* Go through all of the symbols stored in a partial | |
0df8b418 | 1258 | symtab in one loop. */ |
ccefe4c4 TT |
1259 | psym = objfile->global_psymbols.list + ps->globals_offset; |
1260 | while (keep_going) | |
1261 | { | |
1262 | if (psym >= bound) | |
1263 | { | |
1264 | if (bound == gbound && ps->n_static_syms != 0) | |
1265 | { | |
1266 | psym = objfile->static_psymbols.list + ps->statics_offset; | |
1267 | bound = sbound; | |
1268 | } | |
1269 | else | |
1270 | keep_going = 0; | |
1271 | continue; | |
1272 | } | |
1273 | else | |
1274 | { | |
1275 | QUIT; | |
1276 | ||
7b08b9eb JK |
1277 | if ((kind == ALL_DOMAIN |
1278 | || (kind == VARIABLES_DOMAIN | |
ccefe4c4 TT |
1279 | && SYMBOL_CLASS (*psym) != LOC_TYPEDEF |
1280 | && SYMBOL_CLASS (*psym) != LOC_BLOCK) | |
7b08b9eb JK |
1281 | || (kind == FUNCTIONS_DOMAIN |
1282 | && SYMBOL_CLASS (*psym) == LOC_BLOCK) | |
1283 | || (kind == TYPES_DOMAIN | |
1284 | && SYMBOL_CLASS (*psym) == LOC_TYPEDEF)) | |
1285 | && (*name_matcher) (SYMBOL_NATURAL_NAME (*psym), data)) | |
ccefe4c4 TT |
1286 | { |
1287 | PSYMTAB_TO_SYMTAB (ps); | |
1288 | keep_going = 0; | |
1289 | } | |
1290 | } | |
1291 | psym++; | |
1292 | } | |
1293 | } | |
1294 | } | |
1295 | ||
1296 | static int | |
1297 | objfile_has_psyms (struct objfile *objfile) | |
1298 | { | |
1299 | return objfile->psymtabs != NULL; | |
1300 | } | |
1301 | ||
1302 | const struct quick_symbol_functions psym_functions = | |
1303 | { | |
1304 | objfile_has_psyms, | |
1305 | find_last_source_symtab_from_partial, | |
1306 | forget_cached_source_info_partial, | |
1307 | lookup_symtab_via_partial_symtab, | |
1308 | lookup_symbol_aux_psymtabs, | |
774b6a14 | 1309 | pre_expand_symtabs_matching_psymtabs, |
ccefe4c4 TT |
1310 | print_psymtab_stats_for_objfile, |
1311 | dump_psymtabs_for_objfile, | |
1312 | relocate_psymtabs, | |
1313 | read_symtabs_for_function, | |
1314 | expand_partial_symbol_tables, | |
1315 | read_psymtabs_with_filename, | |
1316 | find_symbol_file_from_partial, | |
40658b94 | 1317 | map_matching_symbols_psymtab, |
ccefe4c4 TT |
1318 | expand_symtabs_matching_via_partial, |
1319 | find_pc_sect_symtab_from_partial, | |
ccefe4c4 TT |
1320 | map_symbol_filenames_psymtab |
1321 | }; | |
1322 | ||
1323 | \f | |
1324 | ||
1325 | /* This compares two partial symbols by names, using strcmp_iw_ordered | |
1326 | for the comparison. */ | |
1327 | ||
1328 | static int | |
1329 | compare_psymbols (const void *s1p, const void *s2p) | |
1330 | { | |
1331 | struct partial_symbol *const *s1 = s1p; | |
1332 | struct partial_symbol *const *s2 = s2p; | |
1333 | ||
1334 | return strcmp_iw_ordered (SYMBOL_SEARCH_NAME (*s1), | |
1335 | SYMBOL_SEARCH_NAME (*s2)); | |
1336 | } | |
1337 | ||
1338 | void | |
1339 | sort_pst_symbols (struct partial_symtab *pst) | |
1340 | { | |
0df8b418 | 1341 | /* Sort the global list; don't sort the static list. */ |
ccefe4c4 TT |
1342 | |
1343 | qsort (pst->objfile->global_psymbols.list + pst->globals_offset, | |
1344 | pst->n_global_syms, sizeof (struct partial_symbol *), | |
1345 | compare_psymbols); | |
1346 | } | |
1347 | ||
1348 | /* Allocate and partially fill a partial symtab. It will be | |
1349 | completely filled at the end of the symbol list. | |
1350 | ||
0df8b418 | 1351 | FILENAME is the name of the symbol-file we are reading from. */ |
ccefe4c4 TT |
1352 | |
1353 | struct partial_symtab * | |
1354 | start_psymtab_common (struct objfile *objfile, | |
1355 | struct section_offsets *section_offsets, | |
1356 | const char *filename, | |
1357 | CORE_ADDR textlow, struct partial_symbol **global_syms, | |
1358 | struct partial_symbol **static_syms) | |
1359 | { | |
1360 | struct partial_symtab *psymtab; | |
1361 | ||
1362 | psymtab = allocate_psymtab (filename, objfile); | |
1363 | psymtab->section_offsets = section_offsets; | |
1364 | psymtab->textlow = textlow; | |
1365 | psymtab->texthigh = psymtab->textlow; /* default */ | |
1366 | psymtab->globals_offset = global_syms - objfile->global_psymbols.list; | |
1367 | psymtab->statics_offset = static_syms - objfile->static_psymbols.list; | |
1368 | return (psymtab); | |
1369 | } | |
1370 | ||
cbd70537 SW |
1371 | /* Calculate a hash code for the given partial symbol. The hash is |
1372 | calculated using the symbol's value, language, domain, class | |
0df8b418 | 1373 | and name. These are the values which are set by |
cbd70537 SW |
1374 | add_psymbol_to_bcache. */ |
1375 | ||
710e1a31 | 1376 | static unsigned long |
cbd70537 SW |
1377 | psymbol_hash (const void *addr, int length) |
1378 | { | |
1379 | unsigned long h = 0; | |
1380 | struct partial_symbol *psymbol = (struct partial_symbol *) addr; | |
1381 | unsigned int lang = psymbol->ginfo.language; | |
1382 | unsigned int domain = PSYMBOL_DOMAIN (psymbol); | |
1383 | unsigned int class = PSYMBOL_CLASS (psymbol); | |
1384 | ||
1385 | h = hash_continue (&psymbol->ginfo.value, sizeof (psymbol->ginfo.value), h); | |
1386 | h = hash_continue (&lang, sizeof (unsigned int), h); | |
1387 | h = hash_continue (&domain, sizeof (unsigned int), h); | |
1388 | h = hash_continue (&class, sizeof (unsigned int), h); | |
1389 | h = hash_continue (psymbol->ginfo.name, strlen (psymbol->ginfo.name), h); | |
1390 | ||
1391 | return h; | |
1392 | } | |
1393 | ||
1394 | /* Returns true if the symbol at addr1 equals the symbol at addr2. | |
1395 | For the comparison this function uses a symbols value, | |
1396 | language, domain, class and name. */ | |
1397 | ||
710e1a31 | 1398 | static int |
cbd70537 SW |
1399 | psymbol_compare (const void *addr1, const void *addr2, int length) |
1400 | { | |
1401 | struct partial_symbol *sym1 = (struct partial_symbol *) addr1; | |
1402 | struct partial_symbol *sym2 = (struct partial_symbol *) addr2; | |
1403 | ||
1404 | return (memcmp (&sym1->ginfo.value, &sym1->ginfo.value, | |
1405 | sizeof (sym1->ginfo.value)) == 0 | |
1406 | && sym1->ginfo.language == sym2->ginfo.language | |
1407 | && PSYMBOL_DOMAIN (sym1) == PSYMBOL_DOMAIN (sym2) | |
1408 | && PSYMBOL_CLASS (sym1) == PSYMBOL_CLASS (sym2) | |
1409 | && sym1->ginfo.name == sym2->ginfo.name); | |
1410 | } | |
1411 | ||
710e1a31 SW |
1412 | /* Initialize a partial symbol bcache. */ |
1413 | ||
1414 | struct psymbol_bcache * | |
1415 | psymbol_bcache_init (void) | |
1416 | { | |
1417 | struct psymbol_bcache *bcache = XCALLOC (1, struct psymbol_bcache); | |
1418 | bcache->bcache = bcache_xmalloc (psymbol_hash, psymbol_compare); | |
1419 | return bcache; | |
1420 | } | |
1421 | ||
1422 | /* Free a partial symbol bcache. */ | |
1423 | void | |
1424 | psymbol_bcache_free (struct psymbol_bcache *bcache) | |
1425 | { | |
1426 | if (bcache == NULL) | |
1427 | return; | |
1428 | ||
1429 | bcache_xfree (bcache->bcache); | |
1430 | xfree (bcache); | |
1431 | } | |
1432 | ||
0df8b418 | 1433 | /* Return the internal bcache of the psymbol_bcache BCACHE. */ |
710e1a31 SW |
1434 | |
1435 | struct bcache * | |
1436 | psymbol_bcache_get_bcache (struct psymbol_bcache *bcache) | |
1437 | { | |
1438 | return bcache->bcache; | |
1439 | } | |
1440 | ||
1441 | /* Find a copy of the SYM in BCACHE. If BCACHE has never seen this | |
1442 | symbol before, add a copy to BCACHE. In either case, return a pointer | |
1443 | to BCACHE's copy of the symbol. If optional ADDED is not NULL, return | |
1444 | 1 in case of new entry or 0 if returning an old entry. */ | |
1445 | ||
1446 | static const struct partial_symbol * | |
1447 | psymbol_bcache_full (struct partial_symbol *sym, | |
1448 | struct psymbol_bcache *bcache, | |
1449 | int *added) | |
1450 | { | |
1451 | return bcache_full (sym, | |
1452 | sizeof (struct partial_symbol), | |
1453 | bcache->bcache, | |
1454 | added); | |
1455 | } | |
1456 | ||
ccefe4c4 TT |
1457 | /* Helper function, initialises partial symbol structure and stashes |
1458 | it into objfile's bcache. Note that our caching mechanism will | |
1459 | use all fields of struct partial_symbol to determine hash value of the | |
1460 | structure. In other words, having two symbols with the same name but | |
1461 | different domain (or address) is possible and correct. */ | |
1462 | ||
1463 | static const struct partial_symbol * | |
72b9f47f | 1464 | add_psymbol_to_bcache (const char *name, int namelength, int copy_name, |
ccefe4c4 TT |
1465 | domain_enum domain, |
1466 | enum address_class class, | |
1467 | long val, /* Value as a long */ | |
1468 | CORE_ADDR coreaddr, /* Value as a CORE_ADDR */ | |
1469 | enum language language, struct objfile *objfile, | |
1470 | int *added) | |
1471 | { | |
cbd70537 SW |
1472 | struct partial_symbol psymbol; |
1473 | ||
fc956729 SW |
1474 | /* We must ensure that the entire 'value' field has been zeroed |
1475 | before assigning to it, because an assignment may not write the | |
1476 | entire field. */ | |
1477 | memset (&psymbol.ginfo.value, 0, sizeof (psymbol.ginfo.value)); | |
1478 | ||
0df8b418 | 1479 | /* val and coreaddr are mutually exclusive, one of them *will* be zero. */ |
ccefe4c4 TT |
1480 | if (val != 0) |
1481 | { | |
1482 | SYMBOL_VALUE (&psymbol) = val; | |
1483 | } | |
1484 | else | |
1485 | { | |
1486 | SYMBOL_VALUE_ADDRESS (&psymbol) = coreaddr; | |
1487 | } | |
1488 | SYMBOL_SECTION (&psymbol) = 0; | |
fc956729 | 1489 | SYMBOL_OBJ_SECTION (&psymbol) = NULL; |
33e5013e | 1490 | SYMBOL_SET_LANGUAGE (&psymbol, language); |
ccefe4c4 TT |
1491 | PSYMBOL_DOMAIN (&psymbol) = domain; |
1492 | PSYMBOL_CLASS (&psymbol) = class; | |
1493 | ||
1494 | SYMBOL_SET_NAMES (&psymbol, name, namelength, copy_name, objfile); | |
1495 | ||
0df8b418 | 1496 | /* Stash the partial symbol away in the cache. */ |
710e1a31 SW |
1497 | return psymbol_bcache_full (&psymbol, |
1498 | objfile->psymbol_cache, | |
1499 | added); | |
ccefe4c4 TT |
1500 | } |
1501 | ||
923c6a3d | 1502 | /* Increase the space allocated for LISTP, which is probably |
0df8b418 | 1503 | global_psymbols or static_psymbols. This space will eventually |
923c6a3d TT |
1504 | be freed in free_objfile(). */ |
1505 | ||
1506 | static void | |
1507 | extend_psymbol_list (struct psymbol_allocation_list *listp, | |
1508 | struct objfile *objfile) | |
1509 | { | |
1510 | int new_size; | |
1511 | ||
1512 | if (listp->size == 0) | |
1513 | { | |
1514 | new_size = 255; | |
1515 | listp->list = (struct partial_symbol **) | |
1516 | xmalloc (new_size * sizeof (struct partial_symbol *)); | |
1517 | } | |
1518 | else | |
1519 | { | |
1520 | new_size = listp->size * 2; | |
1521 | listp->list = (struct partial_symbol **) | |
1522 | xrealloc ((char *) listp->list, | |
1523 | new_size * sizeof (struct partial_symbol *)); | |
1524 | } | |
1525 | /* Next assumes we only went one over. Should be good if | |
0df8b418 | 1526 | program works correctly. */ |
923c6a3d TT |
1527 | listp->next = listp->list + listp->size; |
1528 | listp->size = new_size; | |
1529 | } | |
1530 | ||
ccefe4c4 TT |
1531 | /* Helper function, adds partial symbol to the given partial symbol |
1532 | list. */ | |
1533 | ||
1534 | static void | |
1535 | append_psymbol_to_list (struct psymbol_allocation_list *list, | |
1536 | const struct partial_symbol *psym, | |
1537 | struct objfile *objfile) | |
1538 | { | |
1539 | if (list->next >= list->list + list->size) | |
1540 | extend_psymbol_list (list, objfile); | |
1541 | *list->next++ = (struct partial_symbol *) psym; | |
1542 | OBJSTAT (objfile, n_psyms++); | |
1543 | } | |
1544 | ||
1545 | /* Add a symbol with a long value to a psymtab. | |
1546 | Since one arg is a struct, we pass in a ptr and deref it (sigh). | |
1547 | Return the partial symbol that has been added. */ | |
1548 | ||
1549 | /* NOTE: carlton/2003-09-11: The reason why we return the partial | |
1550 | symbol is so that callers can get access to the symbol's demangled | |
1551 | name, which they don't have any cheap way to determine otherwise. | |
1552 | (Currenly, dwarf2read.c is the only file who uses that information, | |
1553 | though it's possible that other readers might in the future.) | |
1554 | Elena wasn't thrilled about that, and I don't blame her, but we | |
1555 | couldn't come up with a better way to get that information. If | |
1556 | it's needed in other situations, we could consider breaking up | |
1557 | SYMBOL_SET_NAMES to provide access to the demangled name lookup | |
1558 | cache. */ | |
1559 | ||
1560 | const struct partial_symbol * | |
72b9f47f | 1561 | add_psymbol_to_list (const char *name, int namelength, int copy_name, |
ccefe4c4 TT |
1562 | domain_enum domain, |
1563 | enum address_class class, | |
1564 | struct psymbol_allocation_list *list, | |
1565 | long val, /* Value as a long */ | |
1566 | CORE_ADDR coreaddr, /* Value as a CORE_ADDR */ | |
1567 | enum language language, struct objfile *objfile) | |
1568 | { | |
1569 | const struct partial_symbol *psym; | |
1570 | ||
1571 | int added; | |
1572 | ||
0df8b418 | 1573 | /* Stash the partial symbol away in the cache. */ |
ccefe4c4 TT |
1574 | psym = add_psymbol_to_bcache (name, namelength, copy_name, domain, class, |
1575 | val, coreaddr, language, objfile, &added); | |
1576 | ||
1577 | /* Do not duplicate global partial symbols. */ | |
1578 | if (list == &objfile->global_psymbols | |
1579 | && !added) | |
1580 | return psym; | |
1581 | ||
0df8b418 | 1582 | /* Save pointer to partial symbol in psymtab, growing symtab if needed. */ |
ccefe4c4 TT |
1583 | append_psymbol_to_list (list, psym, objfile); |
1584 | return psym; | |
1585 | } | |
1586 | ||
1587 | /* Initialize storage for partial symbols. */ | |
1588 | ||
1589 | void | |
1590 | init_psymbol_list (struct objfile *objfile, int total_symbols) | |
1591 | { | |
1592 | /* Free any previously allocated psymbol lists. */ | |
1593 | ||
1594 | if (objfile->global_psymbols.list) | |
1595 | { | |
1596 | xfree (objfile->global_psymbols.list); | |
1597 | } | |
1598 | if (objfile->static_psymbols.list) | |
1599 | { | |
1600 | xfree (objfile->static_psymbols.list); | |
1601 | } | |
1602 | ||
1603 | /* Current best guess is that approximately a twentieth | |
1604 | of the total symbols (in a debugging file) are global or static | |
0df8b418 | 1605 | oriented symbols. */ |
ccefe4c4 TT |
1606 | |
1607 | objfile->global_psymbols.size = total_symbols / 10; | |
1608 | objfile->static_psymbols.size = total_symbols / 10; | |
1609 | ||
1610 | if (objfile->global_psymbols.size > 0) | |
1611 | { | |
1612 | objfile->global_psymbols.next = | |
1613 | objfile->global_psymbols.list = (struct partial_symbol **) | |
1614 | xmalloc ((objfile->global_psymbols.size | |
1615 | * sizeof (struct partial_symbol *))); | |
1616 | } | |
1617 | if (objfile->static_psymbols.size > 0) | |
1618 | { | |
1619 | objfile->static_psymbols.next = | |
1620 | objfile->static_psymbols.list = (struct partial_symbol **) | |
1621 | xmalloc ((objfile->static_psymbols.size | |
1622 | * sizeof (struct partial_symbol *))); | |
1623 | } | |
1624 | } | |
1625 | ||
1626 | struct partial_symtab * | |
1627 | allocate_psymtab (const char *filename, struct objfile *objfile) | |
1628 | { | |
1629 | struct partial_symtab *psymtab; | |
1630 | ||
1631 | if (objfile->free_psymtabs) | |
1632 | { | |
1633 | psymtab = objfile->free_psymtabs; | |
1634 | objfile->free_psymtabs = psymtab->next; | |
1635 | } | |
1636 | else | |
1637 | psymtab = (struct partial_symtab *) | |
1638 | obstack_alloc (&objfile->objfile_obstack, | |
1639 | sizeof (struct partial_symtab)); | |
1640 | ||
1641 | memset (psymtab, 0, sizeof (struct partial_symtab)); | |
1642 | psymtab->filename = obsavestring (filename, strlen (filename), | |
1643 | &objfile->objfile_obstack); | |
1644 | psymtab->symtab = NULL; | |
1645 | ||
1646 | /* Prepend it to the psymtab list for the objfile it belongs to. | |
1647 | Psymtabs are searched in most recent inserted -> least recent | |
0df8b418 | 1648 | inserted order. */ |
ccefe4c4 TT |
1649 | |
1650 | psymtab->objfile = objfile; | |
1651 | psymtab->next = objfile->psymtabs; | |
1652 | objfile->psymtabs = psymtab; | |
ccefe4c4 TT |
1653 | |
1654 | return (psymtab); | |
1655 | } | |
1656 | ||
1657 | void | |
1658 | discard_psymtab (struct partial_symtab *pst) | |
1659 | { | |
1660 | struct partial_symtab **prev_pst; | |
1661 | ||
1662 | /* From dbxread.c: | |
1663 | Empty psymtabs happen as a result of header files which don't | |
1664 | have any symbols in them. There can be a lot of them. But this | |
1665 | check is wrong, in that a psymtab with N_SLINE entries but | |
1666 | nothing else is not empty, but we don't realize that. Fixing | |
1667 | that without slowing things down might be tricky. */ | |
1668 | ||
0df8b418 | 1669 | /* First, snip it out of the psymtab chain. */ |
ccefe4c4 TT |
1670 | |
1671 | prev_pst = &(pst->objfile->psymtabs); | |
1672 | while ((*prev_pst) != pst) | |
1673 | prev_pst = &((*prev_pst)->next); | |
1674 | (*prev_pst) = pst->next; | |
1675 | ||
0df8b418 | 1676 | /* Next, put it on a free list for recycling. */ |
ccefe4c4 TT |
1677 | |
1678 | pst->next = pst->objfile->free_psymtabs; | |
1679 | pst->objfile->free_psymtabs = pst; | |
1680 | } | |
1681 | ||
ccefe4c4 TT |
1682 | \f |
1683 | ||
1684 | void | |
1685 | maintenance_print_psymbols (char *args, int from_tty) | |
1686 | { | |
1687 | char **argv; | |
1688 | struct ui_file *outfile; | |
1689 | struct cleanup *cleanups; | |
1690 | char *symname = NULL; | |
1691 | char *filename = DEV_TTY; | |
1692 | struct objfile *objfile; | |
1693 | struct partial_symtab *ps; | |
1694 | ||
1695 | dont_repeat (); | |
1696 | ||
1697 | if (args == NULL) | |
1698 | { | |
3e43a32a MS |
1699 | error (_("\ |
1700 | print-psymbols takes an output file name and optional symbol file name")); | |
ccefe4c4 TT |
1701 | } |
1702 | argv = gdb_buildargv (args); | |
1703 | cleanups = make_cleanup_freeargv (argv); | |
1704 | ||
1705 | if (argv[0] != NULL) | |
1706 | { | |
1707 | filename = argv[0]; | |
0df8b418 | 1708 | /* If a second arg is supplied, it is a source file name to match on. */ |
ccefe4c4 TT |
1709 | if (argv[1] != NULL) |
1710 | { | |
1711 | symname = argv[1]; | |
1712 | } | |
1713 | } | |
1714 | ||
1715 | filename = tilde_expand (filename); | |
1716 | make_cleanup (xfree, filename); | |
1717 | ||
1718 | outfile = gdb_fopen (filename, FOPEN_WT); | |
1719 | if (outfile == 0) | |
1720 | perror_with_name (filename); | |
1721 | make_cleanup_ui_file_delete (outfile); | |
1722 | ||
1723 | immediate_quit++; | |
1724 | ALL_PSYMTABS (objfile, ps) | |
0ba1096a | 1725 | if (symname == NULL || filename_cmp (symname, ps->filename) == 0) |
ccefe4c4 TT |
1726 | dump_psymtab (objfile, ps, outfile); |
1727 | immediate_quit--; | |
1728 | do_cleanups (cleanups); | |
1729 | } | |
1730 | ||
1731 | /* List all the partial symbol tables whose names match REGEXP (optional). */ | |
1732 | void | |
1733 | maintenance_info_psymtabs (char *regexp, int from_tty) | |
1734 | { | |
1735 | struct program_space *pspace; | |
1736 | struct objfile *objfile; | |
1737 | ||
1738 | if (regexp) | |
1739 | re_comp (regexp); | |
1740 | ||
1741 | ALL_PSPACES (pspace) | |
1742 | ALL_PSPACE_OBJFILES (pspace, objfile) | |
1743 | { | |
1744 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
1745 | struct partial_symtab *psymtab; | |
1746 | ||
1747 | /* We don't want to print anything for this objfile until we | |
1748 | actually find a symtab whose name matches. */ | |
1749 | int printed_objfile_start = 0; | |
1750 | ||
b11896a5 | 1751 | ALL_OBJFILE_PSYMTABS_REQUIRED (objfile, psymtab) |
ccefe4c4 TT |
1752 | { |
1753 | QUIT; | |
1754 | ||
1755 | if (! regexp | |
1756 | || re_exec (psymtab->filename)) | |
1757 | { | |
1758 | if (! printed_objfile_start) | |
1759 | { | |
1760 | printf_filtered ("{ objfile %s ", objfile->name); | |
1761 | wrap_here (" "); | |
1762 | printf_filtered ("((struct objfile *) %s)\n", | |
1763 | host_address_to_string (objfile)); | |
1764 | printed_objfile_start = 1; | |
1765 | } | |
1766 | ||
1767 | printf_filtered (" { psymtab %s ", psymtab->filename); | |
1768 | wrap_here (" "); | |
1769 | printf_filtered ("((struct partial_symtab *) %s)\n", | |
1770 | host_address_to_string (psymtab)); | |
1771 | ||
1772 | printf_filtered (" readin %s\n", | |
1773 | psymtab->readin ? "yes" : "no"); | |
1774 | printf_filtered (" fullname %s\n", | |
3e43a32a MS |
1775 | psymtab->fullname |
1776 | ? psymtab->fullname : "(null)"); | |
ccefe4c4 TT |
1777 | printf_filtered (" text addresses "); |
1778 | fputs_filtered (paddress (gdbarch, psymtab->textlow), | |
1779 | gdb_stdout); | |
1780 | printf_filtered (" -- "); | |
1781 | fputs_filtered (paddress (gdbarch, psymtab->texthigh), | |
1782 | gdb_stdout); | |
1783 | printf_filtered ("\n"); | |
1784 | printf_filtered (" globals "); | |
1785 | if (psymtab->n_global_syms) | |
1786 | { | |
1787 | printf_filtered ("(* (struct partial_symbol **) %s @ %d)\n", | |
1788 | host_address_to_string (psymtab->objfile->global_psymbols.list | |
1789 | + psymtab->globals_offset), | |
1790 | psymtab->n_global_syms); | |
1791 | } | |
1792 | else | |
1793 | printf_filtered ("(none)\n"); | |
1794 | printf_filtered (" statics "); | |
1795 | if (psymtab->n_static_syms) | |
1796 | { | |
1797 | printf_filtered ("(* (struct partial_symbol **) %s @ %d)\n", | |
1798 | host_address_to_string (psymtab->objfile->static_psymbols.list | |
1799 | + psymtab->statics_offset), | |
1800 | psymtab->n_static_syms); | |
1801 | } | |
1802 | else | |
1803 | printf_filtered ("(none)\n"); | |
1804 | printf_filtered (" dependencies "); | |
1805 | if (psymtab->number_of_dependencies) | |
1806 | { | |
1807 | int i; | |
1808 | ||
1809 | printf_filtered ("{\n"); | |
1810 | for (i = 0; i < psymtab->number_of_dependencies; i++) | |
1811 | { | |
1812 | struct partial_symtab *dep = psymtab->dependencies[i]; | |
1813 | ||
1814 | /* Note the string concatenation there --- no comma. */ | |
1815 | printf_filtered (" psymtab %s " | |
1816 | "((struct partial_symtab *) %s)\n", | |
1817 | dep->filename, | |
1818 | host_address_to_string (dep)); | |
1819 | } | |
1820 | printf_filtered (" }\n"); | |
1821 | } | |
1822 | else | |
1823 | printf_filtered ("(none)\n"); | |
1824 | printf_filtered (" }\n"); | |
1825 | } | |
1826 | } | |
1827 | ||
1828 | if (printed_objfile_start) | |
1829 | printf_filtered ("}\n"); | |
1830 | } | |
1831 | } | |
1832 | ||
1833 | /* Check consistency of psymtabs and symtabs. */ | |
1834 | ||
1835 | void | |
1836 | maintenance_check_symtabs (char *ignore, int from_tty) | |
1837 | { | |
1838 | struct symbol *sym; | |
1839 | struct partial_symbol **psym; | |
1840 | struct symtab *s = NULL; | |
1841 | struct partial_symtab *ps; | |
1842 | struct blockvector *bv; | |
1843 | struct objfile *objfile; | |
1844 | struct block *b; | |
1845 | int length; | |
1846 | ||
1847 | ALL_PSYMTABS (objfile, ps) | |
1848 | { | |
1849 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
ad3bbd48 | 1850 | |
ccefe4c4 TT |
1851 | s = PSYMTAB_TO_SYMTAB (ps); |
1852 | if (s == NULL) | |
1853 | continue; | |
1854 | bv = BLOCKVECTOR (s); | |
1855 | b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
1856 | psym = ps->objfile->static_psymbols.list + ps->statics_offset; | |
1857 | length = ps->n_static_syms; | |
1858 | while (length--) | |
1859 | { | |
1860 | sym = lookup_block_symbol (b, SYMBOL_LINKAGE_NAME (*psym), | |
1861 | SYMBOL_DOMAIN (*psym)); | |
1862 | if (!sym) | |
1863 | { | |
1864 | printf_filtered ("Static symbol `"); | |
1865 | puts_filtered (SYMBOL_LINKAGE_NAME (*psym)); | |
1866 | printf_filtered ("' only found in "); | |
1867 | puts_filtered (ps->filename); | |
1868 | printf_filtered (" psymtab\n"); | |
1869 | } | |
1870 | psym++; | |
1871 | } | |
1872 | b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
1873 | psym = ps->objfile->global_psymbols.list + ps->globals_offset; | |
1874 | length = ps->n_global_syms; | |
1875 | while (length--) | |
1876 | { | |
1877 | sym = lookup_block_symbol (b, SYMBOL_LINKAGE_NAME (*psym), | |
1878 | SYMBOL_DOMAIN (*psym)); | |
1879 | if (!sym) | |
1880 | { | |
1881 | printf_filtered ("Global symbol `"); | |
1882 | puts_filtered (SYMBOL_LINKAGE_NAME (*psym)); | |
1883 | printf_filtered ("' only found in "); | |
1884 | puts_filtered (ps->filename); | |
1885 | printf_filtered (" psymtab\n"); | |
1886 | } | |
1887 | psym++; | |
1888 | } | |
1889 | if (ps->texthigh < ps->textlow) | |
1890 | { | |
1891 | printf_filtered ("Psymtab "); | |
1892 | puts_filtered (ps->filename); | |
1893 | printf_filtered (" covers bad range "); | |
1894 | fputs_filtered (paddress (gdbarch, ps->textlow), gdb_stdout); | |
1895 | printf_filtered (" - "); | |
1896 | fputs_filtered (paddress (gdbarch, ps->texthigh), gdb_stdout); | |
1897 | printf_filtered ("\n"); | |
1898 | continue; | |
1899 | } | |
1900 | if (ps->texthigh == 0) | |
1901 | continue; | |
1902 | if (ps->textlow < BLOCK_START (b) || ps->texthigh > BLOCK_END (b)) | |
1903 | { | |
1904 | printf_filtered ("Psymtab "); | |
1905 | puts_filtered (ps->filename); | |
1906 | printf_filtered (" covers "); | |
1907 | fputs_filtered (paddress (gdbarch, ps->textlow), gdb_stdout); | |
1908 | printf_filtered (" - "); | |
1909 | fputs_filtered (paddress (gdbarch, ps->texthigh), gdb_stdout); | |
1910 | printf_filtered (" but symtab covers only "); | |
1911 | fputs_filtered (paddress (gdbarch, BLOCK_START (b)), gdb_stdout); | |
1912 | printf_filtered (" - "); | |
1913 | fputs_filtered (paddress (gdbarch, BLOCK_END (b)), gdb_stdout); | |
1914 | printf_filtered ("\n"); | |
1915 | } | |
1916 | } | |
1917 | } | |
1918 | ||
1919 | \f | |
1920 | ||
1921 | void | |
7b08b9eb | 1922 | expand_partial_symbol_names (int (*fun) (const char *, void *), void *data) |
ccefe4c4 TT |
1923 | { |
1924 | struct objfile *objfile; | |
1925 | ||
1926 | ALL_OBJFILES (objfile) | |
1927 | { | |
1928 | if (objfile->sf) | |
7b08b9eb JK |
1929 | objfile->sf->qf->expand_symtabs_matching (objfile, NULL, fun, |
1930 | ALL_DOMAIN, data); | |
ccefe4c4 TT |
1931 | } |
1932 | } | |
1933 | ||
1934 | void | |
74e2f255 DE |
1935 | map_partial_symbol_filenames (symbol_filename_ftype *fun, void *data, |
1936 | int need_fullname) | |
ccefe4c4 TT |
1937 | { |
1938 | struct objfile *objfile; | |
1939 | ||
1940 | ALL_OBJFILES (objfile) | |
1941 | { | |
1942 | if (objfile->sf) | |
74e2f255 DE |
1943 | objfile->sf->qf->map_symbol_filenames (objfile, fun, data, |
1944 | need_fullname); | |
ccefe4c4 TT |
1945 | } |
1946 | } |