Commit | Line | Data |
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c906108c | 1 | /* Symbol table lookup for the GNU debugger, GDB. |
b6ba6518 KB |
2 | Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
3 | 1996, 1997, 1998, 1999, 2000, 2001 | |
c5aa993b | 4 | Free Software Foundation, Inc. |
c906108c | 5 | |
c5aa993b | 6 | This file is part of GDB. |
c906108c | 7 | |
c5aa993b JM |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
c906108c | 12 | |
c5aa993b JM |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
c906108c | 17 | |
c5aa993b JM |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, | |
21 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
22 | |
23 | #include "defs.h" | |
24 | #include "symtab.h" | |
25 | #include "gdbtypes.h" | |
26 | #include "gdbcore.h" | |
27 | #include "frame.h" | |
28 | #include "target.h" | |
29 | #include "value.h" | |
30 | #include "symfile.h" | |
31 | #include "objfiles.h" | |
32 | #include "gdbcmd.h" | |
33 | #include "call-cmds.h" | |
88987551 | 34 | #include "gdb_regex.h" |
c906108c SS |
35 | #include "expression.h" |
36 | #include "language.h" | |
37 | #include "demangle.h" | |
38 | #include "inferior.h" | |
c5f0f3d0 | 39 | #include "linespec.h" |
a7fdf62f | 40 | #include "filenames.h" /* for FILENAME_CMP */ |
c906108c SS |
41 | |
42 | #include "obstack.h" | |
43 | ||
44 | #include <sys/types.h> | |
45 | #include <fcntl.h> | |
46 | #include "gdb_string.h" | |
47 | #include "gdb_stat.h" | |
48 | #include <ctype.h> | |
015a42b4 | 49 | #include "cp-abi.h" |
c906108c SS |
50 | |
51 | /* Prototype for one function in parser-defs.h, | |
52 | instead of including that entire file. */ | |
53 | ||
a14ed312 | 54 | extern char *find_template_name_end (char *); |
c906108c SS |
55 | |
56 | /* Prototypes for local functions */ | |
57 | ||
a14ed312 | 58 | static void completion_list_add_name (char *, char *, int, char *, char *); |
c906108c | 59 | |
a14ed312 | 60 | static void rbreak_command (char *, int); |
c906108c | 61 | |
a14ed312 | 62 | static void types_info (char *, int); |
c906108c | 63 | |
a14ed312 | 64 | static void functions_info (char *, int); |
c906108c | 65 | |
a14ed312 | 66 | static void variables_info (char *, int); |
c906108c | 67 | |
a14ed312 | 68 | static void sources_info (char *, int); |
c906108c | 69 | |
a14ed312 | 70 | static void output_source_filename (char *, int *); |
c906108c | 71 | |
a14ed312 | 72 | static int find_line_common (struct linetable *, int, int *); |
c906108c | 73 | |
50641945 FN |
74 | /* This one is used by linespec.c */ |
75 | ||
76 | char *operator_chars (char *p, char **end); | |
77 | ||
b37bcaa8 KB |
78 | static struct partial_symbol *lookup_partial_symbol (struct partial_symtab *, |
79 | const char *, int, | |
80 | namespace_enum); | |
c906108c | 81 | |
fba7f19c EZ |
82 | static struct symbol *lookup_symbol_aux (const char *name, const |
83 | struct block *block, const | |
84 | namespace_enum namespace, int | |
85 | *is_a_field_of_this, struct | |
86 | symtab **symtab); | |
87 | ||
88 | ||
a14ed312 | 89 | static struct symbol *find_active_alias (struct symbol *sym, CORE_ADDR addr); |
c906108c SS |
90 | |
91 | /* This flag is used in hppa-tdep.c, and set in hp-symtab-read.c */ | |
92 | /* Signals the presence of objects compiled by HP compilers */ | |
93 | int hp_som_som_object_present = 0; | |
94 | ||
a14ed312 | 95 | static void fixup_section (struct general_symbol_info *, struct objfile *); |
c906108c | 96 | |
a14ed312 | 97 | static int file_matches (char *, char **, int); |
c906108c | 98 | |
a14ed312 KB |
99 | static void print_symbol_info (namespace_enum, |
100 | struct symtab *, struct symbol *, int, char *); | |
c906108c | 101 | |
a14ed312 | 102 | static void print_msymbol_info (struct minimal_symbol *); |
c906108c | 103 | |
a14ed312 | 104 | static void symtab_symbol_info (char *, namespace_enum, int); |
c906108c | 105 | |
a14ed312 | 106 | static void overload_list_add_symbol (struct symbol *sym, char *oload_name); |
392a587b | 107 | |
a14ed312 | 108 | void _initialize_symtab (void); |
c906108c SS |
109 | |
110 | /* */ | |
111 | ||
112 | /* The single non-language-specific builtin type */ | |
113 | struct type *builtin_type_error; | |
114 | ||
115 | /* Block in which the most recently searched-for symbol was found. | |
116 | Might be better to make this a parameter to lookup_symbol and | |
117 | value_of_this. */ | |
118 | ||
119 | const struct block *block_found; | |
120 | ||
c906108c SS |
121 | /* While the C++ support is still in flux, issue a possibly helpful hint on |
122 | using the new command completion feature on single quoted demangled C++ | |
123 | symbols. Remove when loose ends are cleaned up. FIXME -fnf */ | |
124 | ||
125 | static void | |
fba45db2 | 126 | cplusplus_hint (char *name) |
c906108c SS |
127 | { |
128 | while (*name == '\'') | |
129 | name++; | |
130 | printf_filtered ("Hint: try '%s<TAB> or '%s<ESC-?>\n", name, name); | |
131 | printf_filtered ("(Note leading single quote.)\n"); | |
132 | } | |
133 | ||
134 | /* Check for a symtab of a specific name; first in symtabs, then in | |
135 | psymtabs. *If* there is no '/' in the name, a match after a '/' | |
136 | in the symtab filename will also work. */ | |
137 | ||
1b15f1fa TT |
138 | struct symtab * |
139 | lookup_symtab (const char *name) | |
c906108c SS |
140 | { |
141 | register struct symtab *s; | |
142 | register struct partial_symtab *ps; | |
c906108c SS |
143 | register struct objfile *objfile; |
144 | ||
c5aa993b | 145 | got_symtab: |
c906108c SS |
146 | |
147 | /* First, search for an exact match */ | |
148 | ||
149 | ALL_SYMTABS (objfile, s) | |
a7fdf62f EZ |
150 | if (FILENAME_CMP (name, s->filename) == 0) |
151 | return s; | |
c906108c SS |
152 | |
153 | /* Now, search for a matching tail (only if name doesn't have any dirs) */ | |
154 | ||
caadab2c | 155 | if (lbasename (name) == name) |
c906108c | 156 | ALL_SYMTABS (objfile, s) |
c5aa993b | 157 | { |
31889e00 | 158 | if (FILENAME_CMP (lbasename (s->filename), name) == 0) |
c5aa993b JM |
159 | return s; |
160 | } | |
c906108c SS |
161 | |
162 | /* Same search rules as above apply here, but now we look thru the | |
163 | psymtabs. */ | |
164 | ||
165 | ps = lookup_partial_symtab (name); | |
166 | if (!ps) | |
167 | return (NULL); | |
168 | ||
c5aa993b | 169 | if (ps->readin) |
c906108c | 170 | error ("Internal: readin %s pst for `%s' found when no symtab found.", |
c5aa993b | 171 | ps->filename, name); |
c906108c SS |
172 | |
173 | s = PSYMTAB_TO_SYMTAB (ps); | |
174 | ||
175 | if (s) | |
176 | return s; | |
177 | ||
178 | /* At this point, we have located the psymtab for this file, but | |
179 | the conversion to a symtab has failed. This usually happens | |
180 | when we are looking up an include file. In this case, | |
181 | PSYMTAB_TO_SYMTAB doesn't return a symtab, even though one has | |
182 | been created. So, we need to run through the symtabs again in | |
183 | order to find the file. | |
184 | XXX - This is a crock, and should be fixed inside of the the | |
185 | symbol parsing routines. */ | |
186 | goto got_symtab; | |
187 | } | |
188 | ||
c906108c SS |
189 | /* Lookup the partial symbol table of a source file named NAME. |
190 | *If* there is no '/' in the name, a match after a '/' | |
191 | in the psymtab filename will also work. */ | |
192 | ||
193 | struct partial_symtab * | |
1f8cc6db | 194 | lookup_partial_symtab (const char *name) |
c906108c SS |
195 | { |
196 | register struct partial_symtab *pst; | |
197 | register struct objfile *objfile; | |
c5aa993b | 198 | |
c906108c | 199 | ALL_PSYMTABS (objfile, pst) |
c5aa993b | 200 | { |
a7fdf62f | 201 | if (FILENAME_CMP (name, pst->filename) == 0) |
c5aa993b JM |
202 | { |
203 | return (pst); | |
204 | } | |
205 | } | |
c906108c SS |
206 | |
207 | /* Now, search for a matching tail (only if name doesn't have any dirs) */ | |
208 | ||
caadab2c | 209 | if (lbasename (name) == name) |
c906108c | 210 | ALL_PSYMTABS (objfile, pst) |
c5aa993b | 211 | { |
31889e00 | 212 | if (FILENAME_CMP (lbasename (pst->filename), name) == 0) |
c5aa993b JM |
213 | return (pst); |
214 | } | |
c906108c SS |
215 | |
216 | return (NULL); | |
217 | } | |
218 | \f | |
219 | /* Mangle a GDB method stub type. This actually reassembles the pieces of the | |
220 | full method name, which consist of the class name (from T), the unadorned | |
221 | method name from METHOD_ID, and the signature for the specific overload, | |
222 | specified by SIGNATURE_ID. Note that this function is g++ specific. */ | |
223 | ||
224 | char * | |
fba45db2 | 225 | gdb_mangle_name (struct type *type, int method_id, int signature_id) |
c906108c SS |
226 | { |
227 | int mangled_name_len; | |
228 | char *mangled_name; | |
229 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
230 | struct fn_field *method = &f[signature_id]; | |
231 | char *field_name = TYPE_FN_FIELDLIST_NAME (type, method_id); | |
232 | char *physname = TYPE_FN_FIELD_PHYSNAME (f, signature_id); | |
233 | char *newname = type_name_no_tag (type); | |
234 | ||
235 | /* Does the form of physname indicate that it is the full mangled name | |
236 | of a constructor (not just the args)? */ | |
237 | int is_full_physname_constructor; | |
238 | ||
239 | int is_constructor; | |
015a42b4 | 240 | int is_destructor = is_destructor_name (physname); |
c906108c SS |
241 | /* Need a new type prefix. */ |
242 | char *const_prefix = method->is_const ? "C" : ""; | |
243 | char *volatile_prefix = method->is_volatile ? "V" : ""; | |
244 | char buf[20]; | |
245 | int len = (newname == NULL ? 0 : strlen (newname)); | |
246 | ||
015a42b4 | 247 | if (is_operator_name (field_name)) |
235d1e03 EZ |
248 | return xstrdup (physname); |
249 | ||
015a42b4 | 250 | is_full_physname_constructor = is_constructor_name (physname); |
c906108c SS |
251 | |
252 | is_constructor = | |
c5aa993b | 253 | is_full_physname_constructor || (newname && STREQ (field_name, newname)); |
c906108c SS |
254 | |
255 | if (!is_destructor) | |
c5aa993b | 256 | is_destructor = (strncmp (physname, "__dt", 4) == 0); |
c906108c SS |
257 | |
258 | if (is_destructor || is_full_physname_constructor) | |
259 | { | |
c5aa993b JM |
260 | mangled_name = (char *) xmalloc (strlen (physname) + 1); |
261 | strcpy (mangled_name, physname); | |
c906108c SS |
262 | return mangled_name; |
263 | } | |
264 | ||
265 | if (len == 0) | |
266 | { | |
267 | sprintf (buf, "__%s%s", const_prefix, volatile_prefix); | |
268 | } | |
269 | else if (physname[0] == 't' || physname[0] == 'Q') | |
270 | { | |
271 | /* The physname for template and qualified methods already includes | |
c5aa993b | 272 | the class name. */ |
c906108c SS |
273 | sprintf (buf, "__%s%s", const_prefix, volatile_prefix); |
274 | newname = NULL; | |
275 | len = 0; | |
276 | } | |
277 | else | |
278 | { | |
279 | sprintf (buf, "__%s%s%d", const_prefix, volatile_prefix, len); | |
280 | } | |
281 | mangled_name_len = ((is_constructor ? 0 : strlen (field_name)) | |
235d1e03 | 282 | + strlen (buf) + len + strlen (physname) + 1); |
c906108c | 283 | |
c906108c | 284 | { |
c5aa993b | 285 | mangled_name = (char *) xmalloc (mangled_name_len); |
c906108c SS |
286 | if (is_constructor) |
287 | mangled_name[0] = '\0'; | |
288 | else | |
289 | strcpy (mangled_name, field_name); | |
290 | } | |
291 | strcat (mangled_name, buf); | |
292 | /* If the class doesn't have a name, i.e. newname NULL, then we just | |
293 | mangle it using 0 for the length of the class. Thus it gets mangled | |
c5aa993b | 294 | as something starting with `::' rather than `classname::'. */ |
c906108c SS |
295 | if (newname != NULL) |
296 | strcat (mangled_name, newname); | |
297 | ||
298 | strcat (mangled_name, physname); | |
299 | return (mangled_name); | |
300 | } | |
c906108c SS |
301 | \f |
302 | ||
c5aa993b | 303 | |
c906108c SS |
304 | /* Find which partial symtab on contains PC and SECTION. Return 0 if none. */ |
305 | ||
306 | struct partial_symtab * | |
fba45db2 | 307 | find_pc_sect_psymtab (CORE_ADDR pc, asection *section) |
c906108c SS |
308 | { |
309 | register struct partial_symtab *pst; | |
310 | register struct objfile *objfile; | |
311 | ||
312 | ALL_PSYMTABS (objfile, pst) | |
c5aa993b | 313 | { |
c5aa993b | 314 | if (pc >= pst->textlow && pc < pst->texthigh) |
c5aa993b JM |
315 | { |
316 | struct minimal_symbol *msymbol; | |
317 | struct partial_symtab *tpst; | |
318 | ||
319 | /* An objfile that has its functions reordered might have | |
320 | many partial symbol tables containing the PC, but | |
321 | we want the partial symbol table that contains the | |
322 | function containing the PC. */ | |
323 | if (!(objfile->flags & OBJF_REORDERED) && | |
324 | section == 0) /* can't validate section this way */ | |
325 | return (pst); | |
326 | ||
327 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); | |
328 | if (msymbol == NULL) | |
329 | return (pst); | |
330 | ||
331 | for (tpst = pst; tpst != NULL; tpst = tpst->next) | |
332 | { | |
c5aa993b | 333 | if (pc >= tpst->textlow && pc < tpst->texthigh) |
c5aa993b JM |
334 | { |
335 | struct partial_symbol *p; | |
c906108c | 336 | |
c5aa993b JM |
337 | p = find_pc_sect_psymbol (tpst, pc, section); |
338 | if (p != NULL | |
339 | && SYMBOL_VALUE_ADDRESS (p) | |
340 | == SYMBOL_VALUE_ADDRESS (msymbol)) | |
341 | return (tpst); | |
342 | } | |
343 | } | |
344 | return (pst); | |
345 | } | |
346 | } | |
c906108c SS |
347 | return (NULL); |
348 | } | |
349 | ||
350 | /* Find which partial symtab contains PC. Return 0 if none. | |
351 | Backward compatibility, no section */ | |
352 | ||
353 | struct partial_symtab * | |
fba45db2 | 354 | find_pc_psymtab (CORE_ADDR pc) |
c906108c SS |
355 | { |
356 | return find_pc_sect_psymtab (pc, find_pc_mapped_section (pc)); | |
357 | } | |
358 | ||
359 | /* Find which partial symbol within a psymtab matches PC and SECTION. | |
360 | Return 0 if none. Check all psymtabs if PSYMTAB is 0. */ | |
361 | ||
362 | struct partial_symbol * | |
fba45db2 KB |
363 | find_pc_sect_psymbol (struct partial_symtab *psymtab, CORE_ADDR pc, |
364 | asection *section) | |
c906108c SS |
365 | { |
366 | struct partial_symbol *best = NULL, *p, **pp; | |
367 | CORE_ADDR best_pc; | |
c5aa993b | 368 | |
c906108c SS |
369 | if (!psymtab) |
370 | psymtab = find_pc_sect_psymtab (pc, section); | |
371 | if (!psymtab) | |
372 | return 0; | |
373 | ||
374 | /* Cope with programs that start at address 0 */ | |
375 | best_pc = (psymtab->textlow != 0) ? psymtab->textlow - 1 : 0; | |
376 | ||
377 | /* Search the global symbols as well as the static symbols, so that | |
378 | find_pc_partial_function doesn't use a minimal symbol and thus | |
379 | cache a bad endaddr. */ | |
380 | for (pp = psymtab->objfile->global_psymbols.list + psymtab->globals_offset; | |
c5aa993b JM |
381 | (pp - (psymtab->objfile->global_psymbols.list + psymtab->globals_offset) |
382 | < psymtab->n_global_syms); | |
c906108c SS |
383 | pp++) |
384 | { | |
385 | p = *pp; | |
386 | if (SYMBOL_NAMESPACE (p) == VAR_NAMESPACE | |
387 | && SYMBOL_CLASS (p) == LOC_BLOCK | |
388 | && pc >= SYMBOL_VALUE_ADDRESS (p) | |
389 | && (SYMBOL_VALUE_ADDRESS (p) > best_pc | |
390 | || (psymtab->textlow == 0 | |
391 | && best_pc == 0 && SYMBOL_VALUE_ADDRESS (p) == 0))) | |
392 | { | |
c5aa993b | 393 | if (section) /* match on a specific section */ |
c906108c SS |
394 | { |
395 | fixup_psymbol_section (p, psymtab->objfile); | |
396 | if (SYMBOL_BFD_SECTION (p) != section) | |
397 | continue; | |
398 | } | |
399 | best_pc = SYMBOL_VALUE_ADDRESS (p); | |
400 | best = p; | |
401 | } | |
402 | } | |
403 | ||
404 | for (pp = psymtab->objfile->static_psymbols.list + psymtab->statics_offset; | |
c5aa993b JM |
405 | (pp - (psymtab->objfile->static_psymbols.list + psymtab->statics_offset) |
406 | < psymtab->n_static_syms); | |
c906108c SS |
407 | pp++) |
408 | { | |
409 | p = *pp; | |
410 | if (SYMBOL_NAMESPACE (p) == VAR_NAMESPACE | |
411 | && SYMBOL_CLASS (p) == LOC_BLOCK | |
412 | && pc >= SYMBOL_VALUE_ADDRESS (p) | |
413 | && (SYMBOL_VALUE_ADDRESS (p) > best_pc | |
c5aa993b | 414 | || (psymtab->textlow == 0 |
c906108c SS |
415 | && best_pc == 0 && SYMBOL_VALUE_ADDRESS (p) == 0))) |
416 | { | |
c5aa993b | 417 | if (section) /* match on a specific section */ |
c906108c SS |
418 | { |
419 | fixup_psymbol_section (p, psymtab->objfile); | |
420 | if (SYMBOL_BFD_SECTION (p) != section) | |
421 | continue; | |
422 | } | |
423 | best_pc = SYMBOL_VALUE_ADDRESS (p); | |
424 | best = p; | |
425 | } | |
426 | } | |
427 | ||
428 | return best; | |
429 | } | |
430 | ||
431 | /* Find which partial symbol within a psymtab matches PC. Return 0 if none. | |
432 | Check all psymtabs if PSYMTAB is 0. Backwards compatibility, no section. */ | |
433 | ||
434 | struct partial_symbol * | |
fba45db2 | 435 | find_pc_psymbol (struct partial_symtab *psymtab, CORE_ADDR pc) |
c906108c SS |
436 | { |
437 | return find_pc_sect_psymbol (psymtab, pc, find_pc_mapped_section (pc)); | |
438 | } | |
439 | \f | |
440 | /* Debug symbols usually don't have section information. We need to dig that | |
441 | out of the minimal symbols and stash that in the debug symbol. */ | |
442 | ||
443 | static void | |
fba45db2 | 444 | fixup_section (struct general_symbol_info *ginfo, struct objfile *objfile) |
c906108c SS |
445 | { |
446 | struct minimal_symbol *msym; | |
447 | msym = lookup_minimal_symbol (ginfo->name, NULL, objfile); | |
448 | ||
449 | if (msym) | |
7a78d0ee KB |
450 | { |
451 | ginfo->bfd_section = SYMBOL_BFD_SECTION (msym); | |
452 | ginfo->section = SYMBOL_SECTION (msym); | |
453 | } | |
c906108c SS |
454 | } |
455 | ||
456 | struct symbol * | |
fba45db2 | 457 | fixup_symbol_section (struct symbol *sym, struct objfile *objfile) |
c906108c SS |
458 | { |
459 | if (!sym) | |
460 | return NULL; | |
461 | ||
462 | if (SYMBOL_BFD_SECTION (sym)) | |
463 | return sym; | |
464 | ||
465 | fixup_section (&sym->ginfo, objfile); | |
466 | ||
467 | return sym; | |
468 | } | |
469 | ||
7a78d0ee | 470 | struct partial_symbol * |
fba45db2 | 471 | fixup_psymbol_section (struct partial_symbol *psym, struct objfile *objfile) |
c906108c SS |
472 | { |
473 | if (!psym) | |
474 | return NULL; | |
475 | ||
476 | if (SYMBOL_BFD_SECTION (psym)) | |
477 | return psym; | |
478 | ||
479 | fixup_section (&psym->ginfo, objfile); | |
480 | ||
481 | return psym; | |
482 | } | |
483 | ||
484 | /* Find the definition for a specified symbol name NAME | |
485 | in namespace NAMESPACE, visible from lexical block BLOCK. | |
486 | Returns the struct symbol pointer, or zero if no symbol is found. | |
487 | If SYMTAB is non-NULL, store the symbol table in which the | |
488 | symbol was found there, or NULL if not found. | |
489 | C++: if IS_A_FIELD_OF_THIS is nonzero on entry, check to see if | |
490 | NAME is a field of the current implied argument `this'. If so set | |
491 | *IS_A_FIELD_OF_THIS to 1, otherwise set it to zero. | |
492 | BLOCK_FOUND is set to the block in which NAME is found (in the case of | |
493 | a field of `this', value_of_this sets BLOCK_FOUND to the proper value.) */ | |
494 | ||
495 | /* This function has a bunch of loops in it and it would seem to be | |
496 | attractive to put in some QUIT's (though I'm not really sure | |
497 | whether it can run long enough to be really important). But there | |
498 | are a few calls for which it would appear to be bad news to quit | |
499 | out of here: find_proc_desc in alpha-tdep.c and mips-tdep.c, and | |
500 | nindy_frame_chain_valid in nindy-tdep.c. (Note that there is C++ | |
501 | code below which can error(), but that probably doesn't affect | |
502 | these calls since they are looking for a known variable and thus | |
503 | can probably assume it will never hit the C++ code). */ | |
504 | ||
505 | struct symbol * | |
fba7f19c | 506 | lookup_symbol (const char *name, const struct block *block, |
fba45db2 KB |
507 | const namespace_enum namespace, int *is_a_field_of_this, |
508 | struct symtab **symtab) | |
c906108c | 509 | { |
fba7f19c EZ |
510 | char *modified_name = NULL; |
511 | char *modified_name2 = NULL; | |
512 | int needtofreename = 0; | |
513 | struct symbol *returnval; | |
c906108c | 514 | |
63872f9d JG |
515 | if (case_sensitivity == case_sensitive_off) |
516 | { | |
517 | char *copy; | |
518 | int len, i; | |
519 | ||
520 | len = strlen (name); | |
521 | copy = (char *) alloca (len + 1); | |
522 | for (i= 0; i < len; i++) | |
523 | copy[i] = tolower (name[i]); | |
524 | copy[len] = 0; | |
fba7f19c | 525 | modified_name = copy; |
63872f9d | 526 | } |
fba7f19c EZ |
527 | else |
528 | modified_name = (char *) name; | |
529 | ||
530 | /* If we are using C++ language, demangle the name before doing a lookup, so | |
531 | we can always binary search. */ | |
532 | if (current_language->la_language == language_cplus) | |
533 | { | |
534 | modified_name2 = cplus_demangle (modified_name, DMGL_ANSI | DMGL_PARAMS); | |
535 | if (modified_name2) | |
536 | { | |
537 | modified_name = modified_name2; | |
538 | needtofreename = 1; | |
539 | } | |
540 | } | |
541 | ||
542 | returnval = lookup_symbol_aux (modified_name, block, namespace, | |
543 | is_a_field_of_this, symtab); | |
544 | if (needtofreename) | |
b8c9b27d | 545 | xfree (modified_name2); |
fba7f19c EZ |
546 | |
547 | return returnval; | |
548 | } | |
549 | ||
550 | static struct symbol * | |
551 | lookup_symbol_aux (const char *name, const struct block *block, | |
552 | const namespace_enum namespace, int *is_a_field_of_this, | |
553 | struct symtab **symtab) | |
554 | { | |
555 | register struct symbol *sym; | |
556 | register struct symtab *s = NULL; | |
557 | register struct partial_symtab *ps; | |
558 | register struct blockvector *bv; | |
559 | register struct objfile *objfile = NULL; | |
560 | register struct block *b; | |
561 | register struct minimal_symbol *msymbol; | |
562 | ||
63872f9d | 563 | |
c906108c SS |
564 | /* Search specified block and its superiors. */ |
565 | ||
566 | while (block != 0) | |
567 | { | |
568 | sym = lookup_block_symbol (block, name, namespace); | |
c5aa993b | 569 | if (sym) |
c906108c SS |
570 | { |
571 | block_found = block; | |
572 | if (symtab != NULL) | |
573 | { | |
574 | /* Search the list of symtabs for one which contains the | |
c5aa993b | 575 | address of the start of this block. */ |
c906108c | 576 | ALL_SYMTABS (objfile, s) |
c5aa993b JM |
577 | { |
578 | bv = BLOCKVECTOR (s); | |
579 | b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
580 | if (BLOCK_START (b) <= BLOCK_START (block) | |
581 | && BLOCK_END (b) > BLOCK_START (block)) | |
582 | goto found; | |
583 | } | |
584 | found: | |
c906108c SS |
585 | *symtab = s; |
586 | } | |
587 | ||
588 | return fixup_symbol_section (sym, objfile); | |
589 | } | |
590 | block = BLOCK_SUPERBLOCK (block); | |
591 | } | |
592 | ||
593 | /* FIXME: this code is never executed--block is always NULL at this | |
594 | point. What is it trying to do, anyway? We already should have | |
595 | checked the STATIC_BLOCK above (it is the superblock of top-level | |
596 | blocks). Why is VAR_NAMESPACE special-cased? */ | |
597 | /* Don't need to mess with the psymtabs; if we have a block, | |
598 | that file is read in. If we don't, then we deal later with | |
599 | all the psymtab stuff that needs checking. */ | |
600 | /* Note (RT): The following never-executed code looks unnecessary to me also. | |
601 | * If we change the code to use the original (passed-in) | |
602 | * value of 'block', we could cause it to execute, but then what | |
603 | * would it do? The STATIC_BLOCK of the symtab containing the passed-in | |
604 | * 'block' was already searched by the above code. And the STATIC_BLOCK's | |
605 | * of *other* symtabs (those files not containing 'block' lexically) | |
606 | * should not contain 'block' address-wise. So we wouldn't expect this | |
607 | * code to find any 'sym''s that were not found above. I vote for | |
608 | * deleting the following paragraph of code. | |
609 | */ | |
610 | if (namespace == VAR_NAMESPACE && block != NULL) | |
611 | { | |
612 | struct block *b; | |
613 | /* Find the right symtab. */ | |
614 | ALL_SYMTABS (objfile, s) | |
c5aa993b JM |
615 | { |
616 | bv = BLOCKVECTOR (s); | |
617 | b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
618 | if (BLOCK_START (b) <= BLOCK_START (block) | |
619 | && BLOCK_END (b) > BLOCK_START (block)) | |
620 | { | |
621 | sym = lookup_block_symbol (b, name, VAR_NAMESPACE); | |
622 | if (sym) | |
623 | { | |
624 | block_found = b; | |
625 | if (symtab != NULL) | |
626 | *symtab = s; | |
627 | return fixup_symbol_section (sym, objfile); | |
628 | } | |
629 | } | |
630 | } | |
c906108c SS |
631 | } |
632 | ||
633 | ||
634 | /* C++: If requested to do so by the caller, | |
635 | check to see if NAME is a field of `this'. */ | |
636 | if (is_a_field_of_this) | |
637 | { | |
638 | struct value *v = value_of_this (0); | |
c5aa993b | 639 | |
c906108c SS |
640 | *is_a_field_of_this = 0; |
641 | if (v && check_field (v, name)) | |
642 | { | |
643 | *is_a_field_of_this = 1; | |
644 | if (symtab != NULL) | |
645 | *symtab = NULL; | |
646 | return NULL; | |
647 | } | |
648 | } | |
649 | ||
650 | /* Now search all global blocks. Do the symtab's first, then | |
651 | check the psymtab's. If a psymtab indicates the existence | |
652 | of the desired name as a global, then do psymtab-to-symtab | |
653 | conversion on the fly and return the found symbol. */ | |
c5aa993b | 654 | |
c906108c | 655 | ALL_SYMTABS (objfile, s) |
c5aa993b JM |
656 | { |
657 | bv = BLOCKVECTOR (s); | |
658 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
659 | sym = lookup_block_symbol (block, name, namespace); | |
660 | if (sym) | |
661 | { | |
662 | block_found = block; | |
663 | if (symtab != NULL) | |
664 | *symtab = s; | |
665 | return fixup_symbol_section (sym, objfile); | |
666 | } | |
667 | } | |
c906108c SS |
668 | |
669 | #ifndef HPUXHPPA | |
670 | ||
671 | /* Check for the possibility of the symbol being a function or | |
672 | a mangled variable that is stored in one of the minimal symbol tables. | |
673 | Eventually, all global symbols might be resolved in this way. */ | |
c5aa993b | 674 | |
c906108c SS |
675 | if (namespace == VAR_NAMESPACE) |
676 | { | |
677 | msymbol = lookup_minimal_symbol (name, NULL, NULL); | |
678 | if (msymbol != NULL) | |
679 | { | |
680 | s = find_pc_sect_symtab (SYMBOL_VALUE_ADDRESS (msymbol), | |
c5aa993b | 681 | SYMBOL_BFD_SECTION (msymbol)); |
c906108c SS |
682 | if (s != NULL) |
683 | { | |
684 | /* This is a function which has a symtab for its address. */ | |
685 | bv = BLOCKVECTOR (s); | |
686 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
687 | sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol), | |
688 | namespace); | |
c5aa993b JM |
689 | /* We kept static functions in minimal symbol table as well as |
690 | in static scope. We want to find them in the symbol table. */ | |
691 | if (!sym) | |
692 | { | |
c906108c SS |
693 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); |
694 | sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol), | |
695 | namespace); | |
696 | } | |
697 | ||
698 | /* sym == 0 if symbol was found in the minimal symbol table | |
c5aa993b JM |
699 | but not in the symtab. |
700 | Return 0 to use the msymbol definition of "foo_". | |
c906108c | 701 | |
c5aa993b JM |
702 | This happens for Fortran "foo_" symbols, |
703 | which are "foo" in the symtab. | |
c906108c | 704 | |
c5aa993b JM |
705 | This can also happen if "asm" is used to make a |
706 | regular symbol but not a debugging symbol, e.g. | |
707 | asm(".globl _main"); | |
708 | asm("_main:"); | |
709 | */ | |
c906108c SS |
710 | |
711 | if (symtab != NULL) | |
712 | *symtab = s; | |
713 | return fixup_symbol_section (sym, objfile); | |
714 | } | |
715 | else if (MSYMBOL_TYPE (msymbol) != mst_text | |
716 | && MSYMBOL_TYPE (msymbol) != mst_file_text | |
717 | && !STREQ (name, SYMBOL_NAME (msymbol))) | |
718 | { | |
719 | /* This is a mangled variable, look it up by its | |
c5aa993b | 720 | mangled name. */ |
5dbd9048 JB |
721 | return lookup_symbol_aux (SYMBOL_NAME (msymbol), block, |
722 | namespace, is_a_field_of_this, symtab); | |
c906108c SS |
723 | } |
724 | /* There are no debug symbols for this file, or we are looking | |
725 | for an unmangled variable. | |
726 | Try to find a matching static symbol below. */ | |
727 | } | |
728 | } | |
c5aa993b | 729 | |
c906108c SS |
730 | #endif |
731 | ||
732 | ALL_PSYMTABS (objfile, ps) | |
c5aa993b JM |
733 | { |
734 | if (!ps->readin && lookup_partial_symbol (ps, name, 1, namespace)) | |
735 | { | |
736 | s = PSYMTAB_TO_SYMTAB (ps); | |
737 | bv = BLOCKVECTOR (s); | |
738 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
739 | sym = lookup_block_symbol (block, name, namespace); | |
740 | if (!sym) | |
741 | { | |
742 | /* This shouldn't be necessary, but as a last resort | |
743 | * try looking in the statics even though the psymtab | |
744 | * claimed the symbol was global. It's possible that | |
745 | * the psymtab gets it wrong in some cases. | |
746 | */ | |
747 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
748 | sym = lookup_block_symbol (block, name, namespace); | |
749 | if (!sym) | |
750 | error ("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\ | |
c906108c SS |
751 | %s may be an inlined function, or may be a template function\n\ |
752 | (if a template, try specifying an instantiation: %s<type>).", | |
c5aa993b JM |
753 | name, ps->filename, name, name); |
754 | } | |
755 | if (symtab != NULL) | |
756 | *symtab = s; | |
757 | return fixup_symbol_section (sym, objfile); | |
758 | } | |
759 | } | |
c906108c SS |
760 | |
761 | /* Now search all static file-level symbols. | |
762 | Not strictly correct, but more useful than an error. | |
763 | Do the symtabs first, then check the psymtabs. | |
764 | If a psymtab indicates the existence | |
765 | of the desired name as a file-level static, then do psymtab-to-symtab | |
766 | conversion on the fly and return the found symbol. */ | |
767 | ||
768 | ALL_SYMTABS (objfile, s) | |
c5aa993b JM |
769 | { |
770 | bv = BLOCKVECTOR (s); | |
771 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
772 | sym = lookup_block_symbol (block, name, namespace); | |
773 | if (sym) | |
774 | { | |
775 | block_found = block; | |
776 | if (symtab != NULL) | |
777 | *symtab = s; | |
778 | return fixup_symbol_section (sym, objfile); | |
779 | } | |
780 | } | |
c906108c SS |
781 | |
782 | ALL_PSYMTABS (objfile, ps) | |
c5aa993b JM |
783 | { |
784 | if (!ps->readin && lookup_partial_symbol (ps, name, 0, namespace)) | |
785 | { | |
786 | s = PSYMTAB_TO_SYMTAB (ps); | |
787 | bv = BLOCKVECTOR (s); | |
788 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
789 | sym = lookup_block_symbol (block, name, namespace); | |
790 | if (!sym) | |
791 | { | |
792 | /* This shouldn't be necessary, but as a last resort | |
793 | * try looking in the globals even though the psymtab | |
794 | * claimed the symbol was static. It's possible that | |
795 | * the psymtab gets it wrong in some cases. | |
796 | */ | |
797 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
798 | sym = lookup_block_symbol (block, name, namespace); | |
799 | if (!sym) | |
800 | error ("Internal: static symbol `%s' found in %s psymtab but not in symtab.\n\ | |
c906108c SS |
801 | %s may be an inlined function, or may be a template function\n\ |
802 | (if a template, try specifying an instantiation: %s<type>).", | |
c5aa993b JM |
803 | name, ps->filename, name, name); |
804 | } | |
805 | if (symtab != NULL) | |
806 | *symtab = s; | |
807 | return fixup_symbol_section (sym, objfile); | |
808 | } | |
809 | } | |
c906108c SS |
810 | |
811 | #ifdef HPUXHPPA | |
812 | ||
813 | /* Check for the possibility of the symbol being a function or | |
814 | a global variable that is stored in one of the minimal symbol tables. | |
815 | The "minimal symbol table" is built from linker-supplied info. | |
816 | ||
817 | RT: I moved this check to last, after the complete search of | |
818 | the global (p)symtab's and static (p)symtab's. For HP-generated | |
819 | symbol tables, this check was causing a premature exit from | |
820 | lookup_symbol with NULL return, and thus messing up symbol lookups | |
821 | of things like "c::f". It seems to me a check of the minimal | |
822 | symbol table ought to be a last resort in any case. I'm vaguely | |
823 | worried about the comment below which talks about FORTRAN routines "foo_" | |
824 | though... is it saying we need to do the "minsym" check before | |
825 | the static check in this case? | |
826 | */ | |
c5aa993b | 827 | |
c906108c SS |
828 | if (namespace == VAR_NAMESPACE) |
829 | { | |
830 | msymbol = lookup_minimal_symbol (name, NULL, NULL); | |
831 | if (msymbol != NULL) | |
832 | { | |
c5aa993b JM |
833 | /* OK, we found a minimal symbol in spite of not |
834 | * finding any symbol. There are various possible | |
835 | * explanations for this. One possibility is the symbol | |
836 | * exists in code not compiled -g. Another possibility | |
837 | * is that the 'psymtab' isn't doing its job. | |
838 | * A third possibility, related to #2, is that we were confused | |
839 | * by name-mangling. For instance, maybe the psymtab isn't | |
840 | * doing its job because it only know about demangled | |
841 | * names, but we were given a mangled name... | |
842 | */ | |
843 | ||
844 | /* We first use the address in the msymbol to try to | |
845 | * locate the appropriate symtab. Note that find_pc_symtab() | |
846 | * has a side-effect of doing psymtab-to-symtab expansion, | |
847 | * for the found symtab. | |
848 | */ | |
c906108c SS |
849 | s = find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol)); |
850 | if (s != NULL) | |
851 | { | |
852 | bv = BLOCKVECTOR (s); | |
853 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
854 | sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol), | |
855 | namespace); | |
c5aa993b JM |
856 | /* We kept static functions in minimal symbol table as well as |
857 | in static scope. We want to find them in the symbol table. */ | |
858 | if (!sym) | |
859 | { | |
c906108c SS |
860 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); |
861 | sym = lookup_block_symbol (block, SYMBOL_NAME (msymbol), | |
862 | namespace); | |
863 | } | |
c5aa993b JM |
864 | /* If we found one, return it */ |
865 | if (sym) | |
866 | { | |
867 | if (symtab != NULL) | |
868 | *symtab = s; | |
869 | return sym; | |
870 | } | |
c906108c SS |
871 | |
872 | /* If we get here with sym == 0, the symbol was | |
c5aa993b JM |
873 | found in the minimal symbol table |
874 | but not in the symtab. | |
875 | Fall through and return 0 to use the msymbol | |
876 | definition of "foo_". | |
877 | (Note that outer code generally follows up a call | |
878 | to this routine with a call to lookup_minimal_symbol(), | |
879 | so a 0 return means we'll just flow into that other routine). | |
880 | ||
881 | This happens for Fortran "foo_" symbols, | |
882 | which are "foo" in the symtab. | |
883 | ||
884 | This can also happen if "asm" is used to make a | |
885 | regular symbol but not a debugging symbol, e.g. | |
886 | asm(".globl _main"); | |
887 | asm("_main:"); | |
888 | */ | |
c906108c SS |
889 | } |
890 | ||
c5aa993b JM |
891 | /* If the lookup-by-address fails, try repeating the |
892 | * entire lookup process with the symbol name from | |
893 | * the msymbol (if different from the original symbol name). | |
894 | */ | |
c906108c SS |
895 | else if (MSYMBOL_TYPE (msymbol) != mst_text |
896 | && MSYMBOL_TYPE (msymbol) != mst_file_text | |
897 | && !STREQ (name, SYMBOL_NAME (msymbol))) | |
898 | { | |
23cc649f EZ |
899 | return lookup_symbol_aux (SYMBOL_NAME (msymbol), block, |
900 | namespace, is_a_field_of_this, symtab); | |
c906108c SS |
901 | } |
902 | } | |
903 | } | |
904 | ||
905 | #endif | |
906 | ||
907 | if (symtab != NULL) | |
908 | *symtab = NULL; | |
909 | return 0; | |
910 | } | |
357e46e7 | 911 | |
c906108c SS |
912 | /* Look, in partial_symtab PST, for symbol NAME. Check the global |
913 | symbols if GLOBAL, the static symbols if not */ | |
914 | ||
915 | static struct partial_symbol * | |
fba45db2 KB |
916 | lookup_partial_symbol (struct partial_symtab *pst, const char *name, int global, |
917 | namespace_enum namespace) | |
c906108c | 918 | { |
357e46e7 | 919 | struct partial_symbol *temp; |
c906108c SS |
920 | struct partial_symbol **start, **psym; |
921 | struct partial_symbol **top, **bottom, **center; | |
922 | int length = (global ? pst->n_global_syms : pst->n_static_syms); | |
923 | int do_linear_search = 1; | |
357e46e7 | 924 | |
c906108c SS |
925 | if (length == 0) |
926 | { | |
927 | return (NULL); | |
928 | } | |
c906108c SS |
929 | start = (global ? |
930 | pst->objfile->global_psymbols.list + pst->globals_offset : | |
c5aa993b | 931 | pst->objfile->static_psymbols.list + pst->statics_offset); |
357e46e7 | 932 | |
c5aa993b | 933 | if (global) /* This means we can use a binary search. */ |
c906108c SS |
934 | { |
935 | do_linear_search = 0; | |
936 | ||
937 | /* Binary search. This search is guaranteed to end with center | |
938 | pointing at the earliest partial symbol with the correct | |
c5aa993b JM |
939 | name. At that point *all* partial symbols with that name |
940 | will be checked against the correct namespace. */ | |
c906108c SS |
941 | |
942 | bottom = start; | |
943 | top = start + length - 1; | |
944 | while (top > bottom) | |
945 | { | |
946 | center = bottom + (top - bottom) / 2; | |
947 | if (!(center < top)) | |
e1e9e218 | 948 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
c906108c | 949 | if (!do_linear_search |
357e46e7 | 950 | && (SYMBOL_LANGUAGE (*center) == language_java)) |
c906108c SS |
951 | { |
952 | do_linear_search = 1; | |
953 | } | |
494b7ec9 | 954 | if (strcmp (SYMBOL_SOURCE_NAME (*center), name) >= 0) |
c906108c SS |
955 | { |
956 | top = center; | |
957 | } | |
958 | else | |
959 | { | |
960 | bottom = center + 1; | |
961 | } | |
962 | } | |
963 | if (!(top == bottom)) | |
e1e9e218 | 964 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
357e46e7 DB |
965 | |
966 | /* djb - 2000-06-03 - Use SYMBOL_MATCHES_NAME, not a strcmp, so | |
967 | we don't have to force a linear search on C++. Probably holds true | |
968 | for JAVA as well, no way to check.*/ | |
969 | while (SYMBOL_MATCHES_NAME (*top,name)) | |
c906108c SS |
970 | { |
971 | if (SYMBOL_NAMESPACE (*top) == namespace) | |
972 | { | |
357e46e7 | 973 | return (*top); |
c906108c | 974 | } |
c5aa993b | 975 | top++; |
c906108c SS |
976 | } |
977 | } | |
978 | ||
979 | /* Can't use a binary search or else we found during the binary search that | |
980 | we should also do a linear search. */ | |
981 | ||
982 | if (do_linear_search) | |
357e46e7 | 983 | { |
c906108c SS |
984 | for (psym = start; psym < start + length; psym++) |
985 | { | |
986 | if (namespace == SYMBOL_NAMESPACE (*psym)) | |
987 | { | |
988 | if (SYMBOL_MATCHES_NAME (*psym, name)) | |
989 | { | |
990 | return (*psym); | |
991 | } | |
992 | } | |
993 | } | |
994 | } | |
995 | ||
996 | return (NULL); | |
997 | } | |
998 | ||
999 | /* Look up a type named NAME in the struct_namespace. The type returned | |
1000 | must not be opaque -- i.e., must have at least one field defined | |
1001 | ||
1002 | This code was modelled on lookup_symbol -- the parts not relevant to looking | |
1003 | up types were just left out. In particular it's assumed here that types | |
1004 | are available in struct_namespace and only at file-static or global blocks. */ | |
1005 | ||
1006 | ||
1007 | struct type * | |
fba45db2 | 1008 | lookup_transparent_type (const char *name) |
c906108c SS |
1009 | { |
1010 | register struct symbol *sym; | |
1011 | register struct symtab *s = NULL; | |
1012 | register struct partial_symtab *ps; | |
1013 | struct blockvector *bv; | |
1014 | register struct objfile *objfile; | |
1015 | register struct block *block; | |
c906108c SS |
1016 | |
1017 | /* Now search all the global symbols. Do the symtab's first, then | |
1018 | check the psymtab's. If a psymtab indicates the existence | |
1019 | of the desired name as a global, then do psymtab-to-symtab | |
1020 | conversion on the fly and return the found symbol. */ | |
c5aa993b | 1021 | |
c906108c | 1022 | ALL_SYMTABS (objfile, s) |
c5aa993b JM |
1023 | { |
1024 | bv = BLOCKVECTOR (s); | |
1025 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
1026 | sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE); | |
1027 | if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) | |
1028 | { | |
1029 | return SYMBOL_TYPE (sym); | |
1030 | } | |
1031 | } | |
c906108c SS |
1032 | |
1033 | ALL_PSYMTABS (objfile, ps) | |
c5aa993b JM |
1034 | { |
1035 | if (!ps->readin && lookup_partial_symbol (ps, name, 1, STRUCT_NAMESPACE)) | |
1036 | { | |
1037 | s = PSYMTAB_TO_SYMTAB (ps); | |
1038 | bv = BLOCKVECTOR (s); | |
1039 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
1040 | sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE); | |
1041 | if (!sym) | |
1042 | { | |
1043 | /* This shouldn't be necessary, but as a last resort | |
1044 | * try looking in the statics even though the psymtab | |
1045 | * claimed the symbol was global. It's possible that | |
1046 | * the psymtab gets it wrong in some cases. | |
1047 | */ | |
1048 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
1049 | sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE); | |
1050 | if (!sym) | |
1051 | error ("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\ | |
c906108c SS |
1052 | %s may be an inlined function, or may be a template function\n\ |
1053 | (if a template, try specifying an instantiation: %s<type>).", | |
c5aa993b JM |
1054 | name, ps->filename, name, name); |
1055 | } | |
1056 | if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) | |
1057 | return SYMBOL_TYPE (sym); | |
1058 | } | |
1059 | } | |
c906108c SS |
1060 | |
1061 | /* Now search the static file-level symbols. | |
1062 | Not strictly correct, but more useful than an error. | |
1063 | Do the symtab's first, then | |
1064 | check the psymtab's. If a psymtab indicates the existence | |
1065 | of the desired name as a file-level static, then do psymtab-to-symtab | |
1066 | conversion on the fly and return the found symbol. | |
1067 | */ | |
1068 | ||
1069 | ALL_SYMTABS (objfile, s) | |
c5aa993b JM |
1070 | { |
1071 | bv = BLOCKVECTOR (s); | |
1072 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
1073 | sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE); | |
1074 | if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) | |
1075 | { | |
1076 | return SYMBOL_TYPE (sym); | |
1077 | } | |
1078 | } | |
c906108c SS |
1079 | |
1080 | ALL_PSYMTABS (objfile, ps) | |
c5aa993b JM |
1081 | { |
1082 | if (!ps->readin && lookup_partial_symbol (ps, name, 0, STRUCT_NAMESPACE)) | |
1083 | { | |
1084 | s = PSYMTAB_TO_SYMTAB (ps); | |
1085 | bv = BLOCKVECTOR (s); | |
1086 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
1087 | sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE); | |
1088 | if (!sym) | |
1089 | { | |
1090 | /* This shouldn't be necessary, but as a last resort | |
1091 | * try looking in the globals even though the psymtab | |
1092 | * claimed the symbol was static. It's possible that | |
1093 | * the psymtab gets it wrong in some cases. | |
1094 | */ | |
1095 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
1096 | sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE); | |
1097 | if (!sym) | |
1098 | error ("Internal: static symbol `%s' found in %s psymtab but not in symtab.\n\ | |
c906108c SS |
1099 | %s may be an inlined function, or may be a template function\n\ |
1100 | (if a template, try specifying an instantiation: %s<type>).", | |
c5aa993b JM |
1101 | name, ps->filename, name, name); |
1102 | } | |
1103 | if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) | |
1104 | return SYMBOL_TYPE (sym); | |
1105 | } | |
1106 | } | |
c906108c SS |
1107 | return (struct type *) 0; |
1108 | } | |
1109 | ||
1110 | ||
1111 | /* Find the psymtab containing main(). */ | |
1112 | /* FIXME: What about languages without main() or specially linked | |
1113 | executables that have no main() ? */ | |
1114 | ||
1115 | struct partial_symtab * | |
fba45db2 | 1116 | find_main_psymtab (void) |
c906108c SS |
1117 | { |
1118 | register struct partial_symtab *pst; | |
1119 | register struct objfile *objfile; | |
1120 | ||
1121 | ALL_PSYMTABS (objfile, pst) | |
c5aa993b | 1122 | { |
51cc5b07 | 1123 | if (lookup_partial_symbol (pst, main_name (), 1, VAR_NAMESPACE)) |
c5aa993b JM |
1124 | { |
1125 | return (pst); | |
1126 | } | |
1127 | } | |
c906108c SS |
1128 | return (NULL); |
1129 | } | |
1130 | ||
1131 | /* Search BLOCK for symbol NAME in NAMESPACE. | |
1132 | ||
1133 | Note that if NAME is the demangled form of a C++ symbol, we will fail | |
1134 | to find a match during the binary search of the non-encoded names, but | |
1135 | for now we don't worry about the slight inefficiency of looking for | |
1136 | a match we'll never find, since it will go pretty quick. Once the | |
1137 | binary search terminates, we drop through and do a straight linear | |
1138 | search on the symbols. Each symbol which is marked as being a C++ | |
1139 | symbol (language_cplus set) has both the encoded and non-encoded names | |
1140 | tested for a match. */ | |
1141 | ||
1142 | struct symbol * | |
fba45db2 KB |
1143 | lookup_block_symbol (register const struct block *block, const char *name, |
1144 | const namespace_enum namespace) | |
c906108c SS |
1145 | { |
1146 | register int bot, top, inc; | |
1147 | register struct symbol *sym; | |
1148 | register struct symbol *sym_found = NULL; | |
1149 | register int do_linear_search = 1; | |
1150 | ||
1151 | /* If the blocks's symbols were sorted, start with a binary search. */ | |
1152 | ||
1153 | if (BLOCK_SHOULD_SORT (block)) | |
1154 | { | |
1155 | /* Reset the linear search flag so if the binary search fails, we | |
c5aa993b | 1156 | won't do the linear search once unless we find some reason to |
fba7f19c | 1157 | do so */ |
c906108c SS |
1158 | |
1159 | do_linear_search = 0; | |
1160 | top = BLOCK_NSYMS (block); | |
1161 | bot = 0; | |
1162 | ||
1163 | /* Advance BOT to not far before the first symbol whose name is NAME. */ | |
1164 | ||
1165 | while (1) | |
1166 | { | |
1167 | inc = (top - bot + 1); | |
1168 | /* No need to keep binary searching for the last few bits worth. */ | |
1169 | if (inc < 4) | |
1170 | { | |
1171 | break; | |
1172 | } | |
1173 | inc = (inc >> 1) + bot; | |
1174 | sym = BLOCK_SYM (block, inc); | |
fba7f19c | 1175 | if (!do_linear_search && (SYMBOL_LANGUAGE (sym) == language_java)) |
c906108c SS |
1176 | { |
1177 | do_linear_search = 1; | |
1178 | } | |
fba7f19c | 1179 | if (SYMBOL_SOURCE_NAME (sym)[0] < name[0]) |
c906108c SS |
1180 | { |
1181 | bot = inc; | |
1182 | } | |
fba7f19c | 1183 | else if (SYMBOL_SOURCE_NAME (sym)[0] > name[0]) |
c906108c SS |
1184 | { |
1185 | top = inc; | |
1186 | } | |
494b7ec9 | 1187 | else if (strcmp (SYMBOL_SOURCE_NAME (sym), name) < 0) |
c906108c SS |
1188 | { |
1189 | bot = inc; | |
1190 | } | |
1191 | else | |
1192 | { | |
1193 | top = inc; | |
1194 | } | |
1195 | } | |
1196 | ||
1197 | /* Now scan forward until we run out of symbols, find one whose | |
c5aa993b JM |
1198 | name is greater than NAME, or find one we want. If there is |
1199 | more than one symbol with the right name and namespace, we | |
1200 | return the first one; I believe it is now impossible for us | |
1201 | to encounter two symbols with the same name and namespace | |
1202 | here, because blocks containing argument symbols are no | |
1203 | longer sorted. */ | |
c906108c SS |
1204 | |
1205 | top = BLOCK_NSYMS (block); | |
1206 | while (bot < top) | |
1207 | { | |
1208 | sym = BLOCK_SYM (block, bot); | |
c9049fc9 MC |
1209 | if (SYMBOL_NAMESPACE (sym) == namespace && |
1210 | SYMBOL_MATCHES_NAME (sym, name)) | |
1211 | { | |
1212 | return sym; | |
1213 | } | |
c906108c SS |
1214 | bot++; |
1215 | } | |
1216 | } | |
1217 | ||
1218 | /* Here if block isn't sorted, or we fail to find a match during the | |
1219 | binary search above. If during the binary search above, we find a | |
1220 | symbol which is a C++ symbol, then we have re-enabled the linear | |
1221 | search flag which was reset when starting the binary search. | |
1222 | ||
1223 | This loop is equivalent to the loop above, but hacked greatly for speed. | |
1224 | ||
1225 | Note that parameter symbols do not always show up last in the | |
1226 | list; this loop makes sure to take anything else other than | |
1227 | parameter symbols first; it only uses parameter symbols as a | |
1228 | last resort. Note that this only takes up extra computation | |
1229 | time on a match. */ | |
1230 | ||
1231 | if (do_linear_search) | |
1232 | { | |
1233 | top = BLOCK_NSYMS (block); | |
1234 | bot = 0; | |
1235 | while (bot < top) | |
1236 | { | |
1237 | sym = BLOCK_SYM (block, bot); | |
1238 | if (SYMBOL_NAMESPACE (sym) == namespace && | |
1239 | SYMBOL_MATCHES_NAME (sym, name)) | |
1240 | { | |
1241 | /* If SYM has aliases, then use any alias that is active | |
c5aa993b JM |
1242 | at the current PC. If no alias is active at the current |
1243 | PC, then use the main symbol. | |
c906108c | 1244 | |
c5aa993b | 1245 | ?!? Is checking the current pc correct? Is this routine |
a0b3c4fd JM |
1246 | ever called to look up a symbol from another context? |
1247 | ||
1248 | FIXME: No, it's not correct. If someone sets a | |
1249 | conditional breakpoint at an address, then the | |
1250 | breakpoint's `struct expression' should refer to the | |
1251 | `struct symbol' appropriate for the breakpoint's | |
1252 | address, which may not be the PC. | |
1253 | ||
1254 | Even if it were never called from another context, | |
1255 | it's totally bizarre for lookup_symbol's behavior to | |
1256 | depend on the value of the inferior's current PC. We | |
1257 | should pass in the appropriate PC as well as the | |
1258 | block. The interface to lookup_symbol should change | |
1259 | to require the caller to provide a PC. */ | |
1260 | ||
c5aa993b JM |
1261 | if (SYMBOL_ALIASES (sym)) |
1262 | sym = find_active_alias (sym, read_pc ()); | |
c906108c SS |
1263 | |
1264 | sym_found = sym; | |
1265 | if (SYMBOL_CLASS (sym) != LOC_ARG && | |
1266 | SYMBOL_CLASS (sym) != LOC_LOCAL_ARG && | |
1267 | SYMBOL_CLASS (sym) != LOC_REF_ARG && | |
1268 | SYMBOL_CLASS (sym) != LOC_REGPARM && | |
1269 | SYMBOL_CLASS (sym) != LOC_REGPARM_ADDR && | |
1270 | SYMBOL_CLASS (sym) != LOC_BASEREG_ARG) | |
1271 | { | |
1272 | break; | |
1273 | } | |
1274 | } | |
1275 | bot++; | |
1276 | } | |
1277 | } | |
1278 | return (sym_found); /* Will be NULL if not found. */ | |
1279 | } | |
1280 | ||
1281 | /* Given a main symbol SYM and ADDR, search through the alias | |
1282 | list to determine if an alias is active at ADDR and return | |
1283 | the active alias. | |
1284 | ||
1285 | If no alias is active, then return SYM. */ | |
1286 | ||
1287 | static struct symbol * | |
fba45db2 | 1288 | find_active_alias (struct symbol *sym, CORE_ADDR addr) |
c906108c SS |
1289 | { |
1290 | struct range_list *r; | |
1291 | struct alias_list *aliases; | |
1292 | ||
1293 | /* If we have aliases, check them first. */ | |
1294 | aliases = SYMBOL_ALIASES (sym); | |
1295 | ||
1296 | while (aliases) | |
1297 | { | |
1298 | if (!SYMBOL_RANGES (aliases->sym)) | |
c5aa993b | 1299 | return aliases->sym; |
c906108c SS |
1300 | for (r = SYMBOL_RANGES (aliases->sym); r; r = r->next) |
1301 | { | |
1302 | if (r->start <= addr && r->end > addr) | |
1303 | return aliases->sym; | |
1304 | } | |
1305 | aliases = aliases->next; | |
1306 | } | |
1307 | ||
1308 | /* Nothing found, return the main symbol. */ | |
1309 | return sym; | |
1310 | } | |
c906108c | 1311 | \f |
c5aa993b | 1312 | |
c906108c SS |
1313 | /* Return the symbol for the function which contains a specified |
1314 | lexical block, described by a struct block BL. */ | |
1315 | ||
1316 | struct symbol * | |
fba45db2 | 1317 | block_function (struct block *bl) |
c906108c SS |
1318 | { |
1319 | while (BLOCK_FUNCTION (bl) == 0 && BLOCK_SUPERBLOCK (bl) != 0) | |
1320 | bl = BLOCK_SUPERBLOCK (bl); | |
1321 | ||
1322 | return BLOCK_FUNCTION (bl); | |
1323 | } | |
1324 | ||
1325 | /* Find the symtab associated with PC and SECTION. Look through the | |
1326 | psymtabs and read in another symtab if necessary. */ | |
1327 | ||
1328 | struct symtab * | |
fba45db2 | 1329 | find_pc_sect_symtab (CORE_ADDR pc, asection *section) |
c906108c SS |
1330 | { |
1331 | register struct block *b; | |
1332 | struct blockvector *bv; | |
1333 | register struct symtab *s = NULL; | |
1334 | register struct symtab *best_s = NULL; | |
1335 | register struct partial_symtab *ps; | |
1336 | register struct objfile *objfile; | |
1337 | CORE_ADDR distance = 0; | |
1338 | ||
1339 | /* Search all symtabs for the one whose file contains our address, and which | |
1340 | is the smallest of all the ones containing the address. This is designed | |
1341 | to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000 | |
1342 | and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from | |
1343 | 0x1000-0x4000, but for address 0x2345 we want to return symtab b. | |
1344 | ||
1345 | This happens for native ecoff format, where code from included files | |
1346 | gets its own symtab. The symtab for the included file should have | |
1347 | been read in already via the dependency mechanism. | |
1348 | It might be swifter to create several symtabs with the same name | |
1349 | like xcoff does (I'm not sure). | |
1350 | ||
1351 | It also happens for objfiles that have their functions reordered. | |
1352 | For these, the symtab we are looking for is not necessarily read in. */ | |
1353 | ||
1354 | ALL_SYMTABS (objfile, s) | |
c5aa993b JM |
1355 | { |
1356 | bv = BLOCKVECTOR (s); | |
1357 | b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
c906108c | 1358 | |
c5aa993b | 1359 | if (BLOCK_START (b) <= pc |
c5aa993b | 1360 | && BLOCK_END (b) > pc |
c5aa993b JM |
1361 | && (distance == 0 |
1362 | || BLOCK_END (b) - BLOCK_START (b) < distance)) | |
1363 | { | |
1364 | /* For an objfile that has its functions reordered, | |
1365 | find_pc_psymtab will find the proper partial symbol table | |
1366 | and we simply return its corresponding symtab. */ | |
1367 | /* In order to better support objfiles that contain both | |
1368 | stabs and coff debugging info, we continue on if a psymtab | |
1369 | can't be found. */ | |
1370 | if ((objfile->flags & OBJF_REORDERED) && objfile->psymtabs) | |
1371 | { | |
1372 | ps = find_pc_sect_psymtab (pc, section); | |
1373 | if (ps) | |
1374 | return PSYMTAB_TO_SYMTAB (ps); | |
1375 | } | |
1376 | if (section != 0) | |
1377 | { | |
1378 | int i; | |
c906108c | 1379 | |
c5aa993b JM |
1380 | for (i = 0; i < b->nsyms; i++) |
1381 | { | |
1382 | fixup_symbol_section (b->sym[i], objfile); | |
1383 | if (section == SYMBOL_BFD_SECTION (b->sym[i])) | |
1384 | break; | |
1385 | } | |
1386 | if (i >= b->nsyms) | |
1387 | continue; /* no symbol in this symtab matches section */ | |
1388 | } | |
1389 | distance = BLOCK_END (b) - BLOCK_START (b); | |
1390 | best_s = s; | |
1391 | } | |
1392 | } | |
c906108c SS |
1393 | |
1394 | if (best_s != NULL) | |
c5aa993b | 1395 | return (best_s); |
c906108c SS |
1396 | |
1397 | s = NULL; | |
1398 | ps = find_pc_sect_psymtab (pc, section); | |
1399 | if (ps) | |
1400 | { | |
1401 | if (ps->readin) | |
1402 | /* Might want to error() here (in case symtab is corrupt and | |
1403 | will cause a core dump), but maybe we can successfully | |
1404 | continue, so let's not. */ | |
c906108c | 1405 | warning ("\ |
d730266b AC |
1406 | (Internal error: pc 0x%s in read in psymtab, but not in symtab.)\n", |
1407 | paddr_nz (pc)); | |
c906108c SS |
1408 | s = PSYMTAB_TO_SYMTAB (ps); |
1409 | } | |
1410 | return (s); | |
1411 | } | |
1412 | ||
1413 | /* Find the symtab associated with PC. Look through the psymtabs and | |
1414 | read in another symtab if necessary. Backward compatibility, no section */ | |
1415 | ||
1416 | struct symtab * | |
fba45db2 | 1417 | find_pc_symtab (CORE_ADDR pc) |
c906108c SS |
1418 | { |
1419 | return find_pc_sect_symtab (pc, find_pc_mapped_section (pc)); | |
1420 | } | |
c906108c | 1421 | \f |
c5aa993b | 1422 | |
c906108c SS |
1423 | #if 0 |
1424 | ||
1425 | /* Find the closest symbol value (of any sort -- function or variable) | |
1426 | for a given address value. Slow but complete. (currently unused, | |
1427 | mainly because it is too slow. We could fix it if each symtab and | |
1428 | psymtab had contained in it the addresses ranges of each of its | |
1429 | sections, which also would be required to make things like "info | |
1430 | line *0x2345" cause psymtabs to be converted to symtabs). */ | |
1431 | ||
1432 | struct symbol * | |
fba45db2 | 1433 | find_addr_symbol (CORE_ADDR addr, struct symtab **symtabp, CORE_ADDR *symaddrp) |
c906108c SS |
1434 | { |
1435 | struct symtab *symtab, *best_symtab; | |
1436 | struct objfile *objfile; | |
1437 | register int bot, top; | |
1438 | register struct symbol *sym; | |
1439 | register CORE_ADDR sym_addr; | |
1440 | struct block *block; | |
1441 | int blocknum; | |
1442 | ||
1443 | /* Info on best symbol seen so far */ | |
1444 | ||
1445 | register CORE_ADDR best_sym_addr = 0; | |
1446 | struct symbol *best_sym = 0; | |
1447 | ||
1448 | /* FIXME -- we should pull in all the psymtabs, too! */ | |
1449 | ALL_SYMTABS (objfile, symtab) | |
c5aa993b JM |
1450 | { |
1451 | /* Search the global and static blocks in this symtab for | |
1452 | the closest symbol-address to the desired address. */ | |
c906108c | 1453 | |
c5aa993b JM |
1454 | for (blocknum = GLOBAL_BLOCK; blocknum <= STATIC_BLOCK; blocknum++) |
1455 | { | |
1456 | QUIT; | |
1457 | block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab), blocknum); | |
1458 | top = BLOCK_NSYMS (block); | |
1459 | for (bot = 0; bot < top; bot++) | |
1460 | { | |
1461 | sym = BLOCK_SYM (block, bot); | |
1462 | switch (SYMBOL_CLASS (sym)) | |
1463 | { | |
1464 | case LOC_STATIC: | |
1465 | case LOC_LABEL: | |
1466 | sym_addr = SYMBOL_VALUE_ADDRESS (sym); | |
1467 | break; | |
1468 | ||
1469 | case LOC_INDIRECT: | |
1470 | sym_addr = SYMBOL_VALUE_ADDRESS (sym); | |
1471 | /* An indirect symbol really lives at *sym_addr, | |
1472 | * so an indirection needs to be done. | |
1473 | * However, I am leaving this commented out because it's | |
1474 | * expensive, and it's possible that symbolization | |
1475 | * could be done without an active process (in | |
1476 | * case this read_memory will fail). RT | |
1477 | sym_addr = read_memory_unsigned_integer | |
1478 | (sym_addr, TARGET_PTR_BIT / TARGET_CHAR_BIT); | |
1479 | */ | |
1480 | break; | |
c906108c | 1481 | |
c5aa993b JM |
1482 | case LOC_BLOCK: |
1483 | sym_addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); | |
1484 | break; | |
c906108c | 1485 | |
c5aa993b JM |
1486 | default: |
1487 | continue; | |
1488 | } | |
c906108c | 1489 | |
c5aa993b JM |
1490 | if (sym_addr <= addr) |
1491 | if (sym_addr > best_sym_addr) | |
1492 | { | |
1493 | /* Quit if we found an exact match. */ | |
1494 | best_sym = sym; | |
1495 | best_sym_addr = sym_addr; | |
1496 | best_symtab = symtab; | |
1497 | if (sym_addr == addr) | |
1498 | goto done; | |
1499 | } | |
1500 | } | |
1501 | } | |
1502 | } | |
c906108c | 1503 | |
c5aa993b | 1504 | done: |
c906108c SS |
1505 | if (symtabp) |
1506 | *symtabp = best_symtab; | |
1507 | if (symaddrp) | |
1508 | *symaddrp = best_sym_addr; | |
1509 | return best_sym; | |
1510 | } | |
1511 | #endif /* 0 */ | |
1512 | ||
7e73cedf | 1513 | /* Find the source file and line number for a given PC value and SECTION. |
c906108c SS |
1514 | Return a structure containing a symtab pointer, a line number, |
1515 | and a pc range for the entire source line. | |
1516 | The value's .pc field is NOT the specified pc. | |
1517 | NOTCURRENT nonzero means, if specified pc is on a line boundary, | |
1518 | use the line that ends there. Otherwise, in that case, the line | |
1519 | that begins there is used. */ | |
1520 | ||
1521 | /* The big complication here is that a line may start in one file, and end just | |
1522 | before the start of another file. This usually occurs when you #include | |
1523 | code in the middle of a subroutine. To properly find the end of a line's PC | |
1524 | range, we must search all symtabs associated with this compilation unit, and | |
1525 | find the one whose first PC is closer than that of the next line in this | |
1526 | symtab. */ | |
1527 | ||
1528 | /* If it's worth the effort, we could be using a binary search. */ | |
1529 | ||
1530 | struct symtab_and_line | |
fba45db2 | 1531 | find_pc_sect_line (CORE_ADDR pc, struct sec *section, int notcurrent) |
c906108c SS |
1532 | { |
1533 | struct symtab *s; | |
1534 | register struct linetable *l; | |
1535 | register int len; | |
1536 | register int i; | |
1537 | register struct linetable_entry *item; | |
1538 | struct symtab_and_line val; | |
1539 | struct blockvector *bv; | |
1540 | struct minimal_symbol *msymbol; | |
1541 | struct minimal_symbol *mfunsym; | |
1542 | ||
1543 | /* Info on best line seen so far, and where it starts, and its file. */ | |
1544 | ||
1545 | struct linetable_entry *best = NULL; | |
1546 | CORE_ADDR best_end = 0; | |
1547 | struct symtab *best_symtab = 0; | |
1548 | ||
1549 | /* Store here the first line number | |
1550 | of a file which contains the line at the smallest pc after PC. | |
1551 | If we don't find a line whose range contains PC, | |
1552 | we will use a line one less than this, | |
1553 | with a range from the start of that file to the first line's pc. */ | |
1554 | struct linetable_entry *alt = NULL; | |
1555 | struct symtab *alt_symtab = 0; | |
1556 | ||
1557 | /* Info on best line seen in this file. */ | |
1558 | ||
1559 | struct linetable_entry *prev; | |
1560 | ||
1561 | /* If this pc is not from the current frame, | |
1562 | it is the address of the end of a call instruction. | |
1563 | Quite likely that is the start of the following statement. | |
1564 | But what we want is the statement containing the instruction. | |
1565 | Fudge the pc to make sure we get that. */ | |
1566 | ||
c5aa993b | 1567 | INIT_SAL (&val); /* initialize to zeroes */ |
c906108c SS |
1568 | |
1569 | if (notcurrent) | |
1570 | pc -= 1; | |
1571 | ||
c5aa993b | 1572 | /* elz: added this because this function returned the wrong |
c906108c SS |
1573 | information if the pc belongs to a stub (import/export) |
1574 | to call a shlib function. This stub would be anywhere between | |
1575 | two functions in the target, and the line info was erroneously | |
1576 | taken to be the one of the line before the pc. | |
c5aa993b | 1577 | */ |
c906108c | 1578 | /* RT: Further explanation: |
c5aa993b | 1579 | |
c906108c SS |
1580 | * We have stubs (trampolines) inserted between procedures. |
1581 | * | |
1582 | * Example: "shr1" exists in a shared library, and a "shr1" stub also | |
1583 | * exists in the main image. | |
1584 | * | |
1585 | * In the minimal symbol table, we have a bunch of symbols | |
1586 | * sorted by start address. The stubs are marked as "trampoline", | |
1587 | * the others appear as text. E.g.: | |
1588 | * | |
1589 | * Minimal symbol table for main image | |
1590 | * main: code for main (text symbol) | |
1591 | * shr1: stub (trampoline symbol) | |
1592 | * foo: code for foo (text symbol) | |
1593 | * ... | |
1594 | * Minimal symbol table for "shr1" image: | |
1595 | * ... | |
1596 | * shr1: code for shr1 (text symbol) | |
1597 | * ... | |
1598 | * | |
1599 | * So the code below is trying to detect if we are in the stub | |
1600 | * ("shr1" stub), and if so, find the real code ("shr1" trampoline), | |
1601 | * and if found, do the symbolization from the real-code address | |
1602 | * rather than the stub address. | |
1603 | * | |
1604 | * Assumptions being made about the minimal symbol table: | |
1605 | * 1. lookup_minimal_symbol_by_pc() will return a trampoline only | |
1606 | * if we're really in the trampoline. If we're beyond it (say | |
1607 | * we're in "foo" in the above example), it'll have a closer | |
1608 | * symbol (the "foo" text symbol for example) and will not | |
1609 | * return the trampoline. | |
1610 | * 2. lookup_minimal_symbol_text() will find a real text symbol | |
1611 | * corresponding to the trampoline, and whose address will | |
1612 | * be different than the trampoline address. I put in a sanity | |
1613 | * check for the address being the same, to avoid an | |
1614 | * infinite recursion. | |
1615 | */ | |
c5aa993b JM |
1616 | msymbol = lookup_minimal_symbol_by_pc (pc); |
1617 | if (msymbol != NULL) | |
c906108c | 1618 | if (MSYMBOL_TYPE (msymbol) == mst_solib_trampoline) |
c5aa993b JM |
1619 | { |
1620 | mfunsym = lookup_minimal_symbol_text (SYMBOL_NAME (msymbol), NULL, NULL); | |
1621 | if (mfunsym == NULL) | |
1622 | /* I eliminated this warning since it is coming out | |
1623 | * in the following situation: | |
1624 | * gdb shmain // test program with shared libraries | |
1625 | * (gdb) break shr1 // function in shared lib | |
1626 | * Warning: In stub for ... | |
1627 | * In the above situation, the shared lib is not loaded yet, | |
1628 | * so of course we can't find the real func/line info, | |
1629 | * but the "break" still works, and the warning is annoying. | |
1630 | * So I commented out the warning. RT */ | |
1631 | /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_NAME(msymbol)) */ ; | |
1632 | /* fall through */ | |
1633 | else if (SYMBOL_VALUE (mfunsym) == SYMBOL_VALUE (msymbol)) | |
1634 | /* Avoid infinite recursion */ | |
1635 | /* See above comment about why warning is commented out */ | |
1636 | /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_NAME(msymbol)) */ ; | |
1637 | /* fall through */ | |
1638 | else | |
1639 | return find_pc_line (SYMBOL_VALUE (mfunsym), 0); | |
1640 | } | |
c906108c SS |
1641 | |
1642 | ||
1643 | s = find_pc_sect_symtab (pc, section); | |
1644 | if (!s) | |
1645 | { | |
1646 | /* if no symbol information, return previous pc */ | |
1647 | if (notcurrent) | |
1648 | pc++; | |
1649 | val.pc = pc; | |
1650 | return val; | |
1651 | } | |
1652 | ||
1653 | bv = BLOCKVECTOR (s); | |
1654 | ||
1655 | /* Look at all the symtabs that share this blockvector. | |
1656 | They all have the same apriori range, that we found was right; | |
1657 | but they have different line tables. */ | |
1658 | ||
1659 | for (; s && BLOCKVECTOR (s) == bv; s = s->next) | |
1660 | { | |
1661 | /* Find the best line in this symtab. */ | |
1662 | l = LINETABLE (s); | |
1663 | if (!l) | |
c5aa993b | 1664 | continue; |
c906108c SS |
1665 | len = l->nitems; |
1666 | if (len <= 0) | |
1667 | { | |
1668 | /* I think len can be zero if the symtab lacks line numbers | |
1669 | (e.g. gcc -g1). (Either that or the LINETABLE is NULL; | |
1670 | I'm not sure which, and maybe it depends on the symbol | |
1671 | reader). */ | |
1672 | continue; | |
1673 | } | |
1674 | ||
1675 | prev = NULL; | |
1676 | item = l->item; /* Get first line info */ | |
1677 | ||
1678 | /* Is this file's first line closer than the first lines of other files? | |
c5aa993b | 1679 | If so, record this file, and its first line, as best alternate. */ |
c906108c SS |
1680 | if (item->pc > pc && (!alt || item->pc < alt->pc)) |
1681 | { | |
1682 | alt = item; | |
1683 | alt_symtab = s; | |
1684 | } | |
1685 | ||
1686 | for (i = 0; i < len; i++, item++) | |
1687 | { | |
1688 | /* Leave prev pointing to the linetable entry for the last line | |
1689 | that started at or before PC. */ | |
1690 | if (item->pc > pc) | |
1691 | break; | |
1692 | ||
1693 | prev = item; | |
1694 | } | |
1695 | ||
1696 | /* At this point, prev points at the line whose start addr is <= pc, and | |
c5aa993b JM |
1697 | item points at the next line. If we ran off the end of the linetable |
1698 | (pc >= start of the last line), then prev == item. If pc < start of | |
1699 | the first line, prev will not be set. */ | |
c906108c SS |
1700 | |
1701 | /* Is this file's best line closer than the best in the other files? | |
c5aa993b | 1702 | If so, record this file, and its best line, as best so far. */ |
c906108c SS |
1703 | |
1704 | if (prev && (!best || prev->pc > best->pc)) | |
1705 | { | |
1706 | best = prev; | |
1707 | best_symtab = s; | |
25d53da1 KB |
1708 | |
1709 | /* Discard BEST_END if it's before the PC of the current BEST. */ | |
1710 | if (best_end <= best->pc) | |
1711 | best_end = 0; | |
c906108c | 1712 | } |
25d53da1 KB |
1713 | |
1714 | /* If another line (denoted by ITEM) is in the linetable and its | |
1715 | PC is after BEST's PC, but before the current BEST_END, then | |
1716 | use ITEM's PC as the new best_end. */ | |
1717 | if (best && i < len && item->pc > best->pc | |
1718 | && (best_end == 0 || best_end > item->pc)) | |
1719 | best_end = item->pc; | |
c906108c SS |
1720 | } |
1721 | ||
1722 | if (!best_symtab) | |
1723 | { | |
1724 | if (!alt_symtab) | |
1725 | { /* If we didn't find any line # info, just | |
1726 | return zeros. */ | |
1727 | val.pc = pc; | |
1728 | } | |
1729 | else | |
1730 | { | |
1731 | val.symtab = alt_symtab; | |
1732 | val.line = alt->line - 1; | |
1733 | ||
1734 | /* Don't return line 0, that means that we didn't find the line. */ | |
c5aa993b JM |
1735 | if (val.line == 0) |
1736 | ++val.line; | |
c906108c SS |
1737 | |
1738 | val.pc = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
1739 | val.end = alt->pc; | |
1740 | } | |
1741 | } | |
1742 | else | |
1743 | { | |
1744 | val.symtab = best_symtab; | |
1745 | val.line = best->line; | |
1746 | val.pc = best->pc; | |
1747 | if (best_end && (!alt || best_end < alt->pc)) | |
1748 | val.end = best_end; | |
1749 | else if (alt) | |
1750 | val.end = alt->pc; | |
1751 | else | |
1752 | val.end = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
1753 | } | |
1754 | val.section = section; | |
1755 | return val; | |
1756 | } | |
1757 | ||
1758 | /* Backward compatibility (no section) */ | |
1759 | ||
1760 | struct symtab_and_line | |
fba45db2 | 1761 | find_pc_line (CORE_ADDR pc, int notcurrent) |
c906108c | 1762 | { |
c5aa993b | 1763 | asection *section; |
c906108c SS |
1764 | |
1765 | section = find_pc_overlay (pc); | |
1766 | if (pc_in_unmapped_range (pc, section)) | |
1767 | pc = overlay_mapped_address (pc, section); | |
1768 | return find_pc_sect_line (pc, section, notcurrent); | |
1769 | } | |
c906108c | 1770 | \f |
c906108c SS |
1771 | /* Find line number LINE in any symtab whose name is the same as |
1772 | SYMTAB. | |
1773 | ||
1774 | If found, return the symtab that contains the linetable in which it was | |
1775 | found, set *INDEX to the index in the linetable of the best entry | |
1776 | found, and set *EXACT_MATCH nonzero if the value returned is an | |
1777 | exact match. | |
1778 | ||
1779 | If not found, return NULL. */ | |
1780 | ||
50641945 | 1781 | struct symtab * |
fba45db2 | 1782 | find_line_symtab (struct symtab *symtab, int line, int *index, int *exact_match) |
c906108c SS |
1783 | { |
1784 | int exact; | |
1785 | ||
1786 | /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE | |
1787 | so far seen. */ | |
1788 | ||
1789 | int best_index; | |
1790 | struct linetable *best_linetable; | |
1791 | struct symtab *best_symtab; | |
1792 | ||
1793 | /* First try looking it up in the given symtab. */ | |
1794 | best_linetable = LINETABLE (symtab); | |
1795 | best_symtab = symtab; | |
1796 | best_index = find_line_common (best_linetable, line, &exact); | |
1797 | if (best_index < 0 || !exact) | |
1798 | { | |
1799 | /* Didn't find an exact match. So we better keep looking for | |
c5aa993b JM |
1800 | another symtab with the same name. In the case of xcoff, |
1801 | multiple csects for one source file (produced by IBM's FORTRAN | |
1802 | compiler) produce multiple symtabs (this is unavoidable | |
1803 | assuming csects can be at arbitrary places in memory and that | |
1804 | the GLOBAL_BLOCK of a symtab has a begin and end address). */ | |
c906108c SS |
1805 | |
1806 | /* BEST is the smallest linenumber > LINE so far seen, | |
c5aa993b JM |
1807 | or 0 if none has been seen so far. |
1808 | BEST_INDEX and BEST_LINETABLE identify the item for it. */ | |
c906108c SS |
1809 | int best; |
1810 | ||
1811 | struct objfile *objfile; | |
1812 | struct symtab *s; | |
1813 | ||
1814 | if (best_index >= 0) | |
1815 | best = best_linetable->item[best_index].line; | |
1816 | else | |
1817 | best = 0; | |
1818 | ||
1819 | ALL_SYMTABS (objfile, s) | |
c5aa993b JM |
1820 | { |
1821 | struct linetable *l; | |
1822 | int ind; | |
c906108c | 1823 | |
c5aa993b JM |
1824 | if (!STREQ (symtab->filename, s->filename)) |
1825 | continue; | |
1826 | l = LINETABLE (s); | |
1827 | ind = find_line_common (l, line, &exact); | |
1828 | if (ind >= 0) | |
1829 | { | |
1830 | if (exact) | |
1831 | { | |
1832 | best_index = ind; | |
1833 | best_linetable = l; | |
1834 | best_symtab = s; | |
1835 | goto done; | |
1836 | } | |
1837 | if (best == 0 || l->item[ind].line < best) | |
1838 | { | |
1839 | best = l->item[ind].line; | |
1840 | best_index = ind; | |
1841 | best_linetable = l; | |
1842 | best_symtab = s; | |
1843 | } | |
1844 | } | |
1845 | } | |
c906108c | 1846 | } |
c5aa993b | 1847 | done: |
c906108c SS |
1848 | if (best_index < 0) |
1849 | return NULL; | |
1850 | ||
1851 | if (index) | |
1852 | *index = best_index; | |
1853 | if (exact_match) | |
1854 | *exact_match = exact; | |
1855 | ||
1856 | return best_symtab; | |
1857 | } | |
1858 | \f | |
1859 | /* Set the PC value for a given source file and line number and return true. | |
1860 | Returns zero for invalid line number (and sets the PC to 0). | |
1861 | The source file is specified with a struct symtab. */ | |
1862 | ||
1863 | int | |
fba45db2 | 1864 | find_line_pc (struct symtab *symtab, int line, CORE_ADDR *pc) |
c906108c SS |
1865 | { |
1866 | struct linetable *l; | |
1867 | int ind; | |
1868 | ||
1869 | *pc = 0; | |
1870 | if (symtab == 0) | |
1871 | return 0; | |
1872 | ||
1873 | symtab = find_line_symtab (symtab, line, &ind, NULL); | |
1874 | if (symtab != NULL) | |
1875 | { | |
1876 | l = LINETABLE (symtab); | |
1877 | *pc = l->item[ind].pc; | |
1878 | return 1; | |
1879 | } | |
1880 | else | |
1881 | return 0; | |
1882 | } | |
1883 | ||
1884 | /* Find the range of pc values in a line. | |
1885 | Store the starting pc of the line into *STARTPTR | |
1886 | and the ending pc (start of next line) into *ENDPTR. | |
1887 | Returns 1 to indicate success. | |
1888 | Returns 0 if could not find the specified line. */ | |
1889 | ||
1890 | int | |
fba45db2 KB |
1891 | find_line_pc_range (struct symtab_and_line sal, CORE_ADDR *startptr, |
1892 | CORE_ADDR *endptr) | |
c906108c SS |
1893 | { |
1894 | CORE_ADDR startaddr; | |
1895 | struct symtab_and_line found_sal; | |
1896 | ||
1897 | startaddr = sal.pc; | |
c5aa993b | 1898 | if (startaddr == 0 && !find_line_pc (sal.symtab, sal.line, &startaddr)) |
c906108c SS |
1899 | return 0; |
1900 | ||
1901 | /* This whole function is based on address. For example, if line 10 has | |
1902 | two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then | |
1903 | "info line *0x123" should say the line goes from 0x100 to 0x200 | |
1904 | and "info line *0x355" should say the line goes from 0x300 to 0x400. | |
1905 | This also insures that we never give a range like "starts at 0x134 | |
1906 | and ends at 0x12c". */ | |
1907 | ||
1908 | found_sal = find_pc_sect_line (startaddr, sal.section, 0); | |
1909 | if (found_sal.line != sal.line) | |
1910 | { | |
1911 | /* The specified line (sal) has zero bytes. */ | |
1912 | *startptr = found_sal.pc; | |
1913 | *endptr = found_sal.pc; | |
1914 | } | |
1915 | else | |
1916 | { | |
1917 | *startptr = found_sal.pc; | |
1918 | *endptr = found_sal.end; | |
1919 | } | |
1920 | return 1; | |
1921 | } | |
1922 | ||
1923 | /* Given a line table and a line number, return the index into the line | |
1924 | table for the pc of the nearest line whose number is >= the specified one. | |
1925 | Return -1 if none is found. The value is >= 0 if it is an index. | |
1926 | ||
1927 | Set *EXACT_MATCH nonzero if the value returned is an exact match. */ | |
1928 | ||
1929 | static int | |
fba45db2 KB |
1930 | find_line_common (register struct linetable *l, register int lineno, |
1931 | int *exact_match) | |
c906108c SS |
1932 | { |
1933 | register int i; | |
1934 | register int len; | |
1935 | ||
1936 | /* BEST is the smallest linenumber > LINENO so far seen, | |
1937 | or 0 if none has been seen so far. | |
1938 | BEST_INDEX identifies the item for it. */ | |
1939 | ||
1940 | int best_index = -1; | |
1941 | int best = 0; | |
1942 | ||
1943 | if (lineno <= 0) | |
1944 | return -1; | |
1945 | if (l == 0) | |
1946 | return -1; | |
1947 | ||
1948 | len = l->nitems; | |
1949 | for (i = 0; i < len; i++) | |
1950 | { | |
1951 | register struct linetable_entry *item = &(l->item[i]); | |
1952 | ||
1953 | if (item->line == lineno) | |
1954 | { | |
1955 | /* Return the first (lowest address) entry which matches. */ | |
1956 | *exact_match = 1; | |
1957 | return i; | |
1958 | } | |
1959 | ||
1960 | if (item->line > lineno && (best == 0 || item->line < best)) | |
1961 | { | |
1962 | best = item->line; | |
1963 | best_index = i; | |
1964 | } | |
1965 | } | |
1966 | ||
1967 | /* If we got here, we didn't get an exact match. */ | |
1968 | ||
1969 | *exact_match = 0; | |
1970 | return best_index; | |
1971 | } | |
1972 | ||
1973 | int | |
fba45db2 | 1974 | find_pc_line_pc_range (CORE_ADDR pc, CORE_ADDR *startptr, CORE_ADDR *endptr) |
c906108c SS |
1975 | { |
1976 | struct symtab_and_line sal; | |
1977 | sal = find_pc_line (pc, 0); | |
1978 | *startptr = sal.pc; | |
1979 | *endptr = sal.end; | |
1980 | return sal.symtab != 0; | |
1981 | } | |
1982 | ||
1983 | /* Given a function symbol SYM, find the symtab and line for the start | |
1984 | of the function. | |
1985 | If the argument FUNFIRSTLINE is nonzero, we want the first line | |
1986 | of real code inside the function. */ | |
1987 | ||
50641945 | 1988 | struct symtab_and_line |
fba45db2 | 1989 | find_function_start_sal (struct symbol *sym, int funfirstline) |
c906108c SS |
1990 | { |
1991 | CORE_ADDR pc; | |
1992 | struct symtab_and_line sal; | |
1993 | ||
1994 | pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); | |
1995 | fixup_symbol_section (sym, NULL); | |
1996 | if (funfirstline) | |
c5aa993b | 1997 | { /* skip "first line" of function (which is actually its prologue) */ |
c906108c SS |
1998 | asection *section = SYMBOL_BFD_SECTION (sym); |
1999 | /* If function is in an unmapped overlay, use its unmapped LMA | |
c5aa993b | 2000 | address, so that SKIP_PROLOGUE has something unique to work on */ |
c906108c SS |
2001 | if (section_is_overlay (section) && |
2002 | !section_is_mapped (section)) | |
2003 | pc = overlay_unmapped_address (pc, section); | |
2004 | ||
2005 | pc += FUNCTION_START_OFFSET; | |
b83266a0 | 2006 | pc = SKIP_PROLOGUE (pc); |
c906108c SS |
2007 | |
2008 | /* For overlays, map pc back into its mapped VMA range */ | |
2009 | pc = overlay_mapped_address (pc, section); | |
2010 | } | |
2011 | sal = find_pc_sect_line (pc, SYMBOL_BFD_SECTION (sym), 0); | |
2012 | ||
2013 | #ifdef PROLOGUE_FIRSTLINE_OVERLAP | |
2014 | /* Convex: no need to suppress code on first line, if any */ | |
2015 | sal.pc = pc; | |
2016 | #else | |
2017 | /* Check if SKIP_PROLOGUE left us in mid-line, and the next | |
2018 | line is still part of the same function. */ | |
2019 | if (sal.pc != pc | |
2020 | && BLOCK_START (SYMBOL_BLOCK_VALUE (sym)) <= sal.end | |
2021 | && sal.end < BLOCK_END (SYMBOL_BLOCK_VALUE (sym))) | |
2022 | { | |
2023 | /* First pc of next line */ | |
2024 | pc = sal.end; | |
2025 | /* Recalculate the line number (might not be N+1). */ | |
2026 | sal = find_pc_sect_line (pc, SYMBOL_BFD_SECTION (sym), 0); | |
2027 | } | |
2028 | sal.pc = pc; | |
2029 | #endif | |
2030 | ||
2031 | return sal; | |
2032 | } | |
50641945 | 2033 | |
c906108c SS |
2034 | /* If P is of the form "operator[ \t]+..." where `...' is |
2035 | some legitimate operator text, return a pointer to the | |
2036 | beginning of the substring of the operator text. | |
2037 | Otherwise, return "". */ | |
2038 | char * | |
fba45db2 | 2039 | operator_chars (char *p, char **end) |
c906108c SS |
2040 | { |
2041 | *end = ""; | |
2042 | if (strncmp (p, "operator", 8)) | |
2043 | return *end; | |
2044 | p += 8; | |
2045 | ||
2046 | /* Don't get faked out by `operator' being part of a longer | |
2047 | identifier. */ | |
c5aa993b | 2048 | if (isalpha (*p) || *p == '_' || *p == '$' || *p == '\0') |
c906108c SS |
2049 | return *end; |
2050 | ||
2051 | /* Allow some whitespace between `operator' and the operator symbol. */ | |
2052 | while (*p == ' ' || *p == '\t') | |
2053 | p++; | |
2054 | ||
2055 | /* Recognize 'operator TYPENAME'. */ | |
2056 | ||
c5aa993b | 2057 | if (isalpha (*p) || *p == '_' || *p == '$') |
c906108c | 2058 | { |
c5aa993b JM |
2059 | register char *q = p + 1; |
2060 | while (isalnum (*q) || *q == '_' || *q == '$') | |
c906108c SS |
2061 | q++; |
2062 | *end = q; | |
2063 | return p; | |
2064 | } | |
2065 | ||
2066 | switch (*p) | |
2067 | { | |
2068 | case '!': | |
2069 | case '=': | |
2070 | case '*': | |
2071 | case '/': | |
2072 | case '%': | |
2073 | case '^': | |
2074 | if (p[1] == '=') | |
c5aa993b | 2075 | *end = p + 2; |
c906108c | 2076 | else |
c5aa993b | 2077 | *end = p + 1; |
c906108c SS |
2078 | return p; |
2079 | case '<': | |
2080 | case '>': | |
2081 | case '+': | |
2082 | case '-': | |
2083 | case '&': | |
2084 | case '|': | |
2085 | if (p[1] == '=' || p[1] == p[0]) | |
c5aa993b | 2086 | *end = p + 2; |
c906108c | 2087 | else |
c5aa993b | 2088 | *end = p + 1; |
c906108c SS |
2089 | return p; |
2090 | case '~': | |
2091 | case ',': | |
c5aa993b | 2092 | *end = p + 1; |
c906108c SS |
2093 | return p; |
2094 | case '(': | |
2095 | if (p[1] != ')') | |
2096 | error ("`operator ()' must be specified without whitespace in `()'"); | |
c5aa993b | 2097 | *end = p + 2; |
c906108c SS |
2098 | return p; |
2099 | case '?': | |
2100 | if (p[1] != ':') | |
2101 | error ("`operator ?:' must be specified without whitespace in `?:'"); | |
c5aa993b | 2102 | *end = p + 2; |
c906108c SS |
2103 | return p; |
2104 | case '[': | |
2105 | if (p[1] != ']') | |
2106 | error ("`operator []' must be specified without whitespace in `[]'"); | |
c5aa993b | 2107 | *end = p + 2; |
c906108c SS |
2108 | return p; |
2109 | default: | |
2110 | error ("`operator %s' not supported", p); | |
2111 | break; | |
2112 | } | |
2113 | *end = ""; | |
2114 | return *end; | |
2115 | } | |
c906108c | 2116 | \f |
c5aa993b | 2117 | |
c94fdfd0 EZ |
2118 | /* If FILE is not already in the table of files, return zero; |
2119 | otherwise return non-zero. Optionally add FILE to the table if ADD | |
2120 | is non-zero. If *FIRST is non-zero, forget the old table | |
2121 | contents. */ | |
2122 | static int | |
2123 | filename_seen (const char *file, int add, int *first) | |
c906108c | 2124 | { |
c94fdfd0 EZ |
2125 | /* Table of files seen so far. */ |
2126 | static const char **tab = NULL; | |
c906108c SS |
2127 | /* Allocated size of tab in elements. |
2128 | Start with one 256-byte block (when using GNU malloc.c). | |
2129 | 24 is the malloc overhead when range checking is in effect. */ | |
2130 | static int tab_alloc_size = (256 - 24) / sizeof (char *); | |
2131 | /* Current size of tab in elements. */ | |
2132 | static int tab_cur_size; | |
c94fdfd0 | 2133 | const char **p; |
c906108c SS |
2134 | |
2135 | if (*first) | |
2136 | { | |
2137 | if (tab == NULL) | |
c94fdfd0 | 2138 | tab = (const char **) xmalloc (tab_alloc_size * sizeof (*tab)); |
c906108c SS |
2139 | tab_cur_size = 0; |
2140 | } | |
2141 | ||
c94fdfd0 | 2142 | /* Is FILE in tab? */ |
c906108c | 2143 | for (p = tab; p < tab + tab_cur_size; p++) |
c94fdfd0 EZ |
2144 | if (strcmp (*p, file) == 0) |
2145 | return 1; | |
2146 | ||
2147 | /* No; maybe add it to tab. */ | |
2148 | if (add) | |
c906108c | 2149 | { |
c94fdfd0 EZ |
2150 | if (tab_cur_size == tab_alloc_size) |
2151 | { | |
2152 | tab_alloc_size *= 2; | |
2153 | tab = (const char **) xrealloc ((char *) tab, | |
2154 | tab_alloc_size * sizeof (*tab)); | |
2155 | } | |
2156 | tab[tab_cur_size++] = file; | |
c906108c | 2157 | } |
c906108c | 2158 | |
c94fdfd0 EZ |
2159 | return 0; |
2160 | } | |
2161 | ||
2162 | /* Slave routine for sources_info. Force line breaks at ,'s. | |
2163 | NAME is the name to print and *FIRST is nonzero if this is the first | |
2164 | name printed. Set *FIRST to zero. */ | |
2165 | static void | |
2166 | output_source_filename (char *name, int *first) | |
2167 | { | |
2168 | /* Since a single source file can result in several partial symbol | |
2169 | tables, we need to avoid printing it more than once. Note: if | |
2170 | some of the psymtabs are read in and some are not, it gets | |
2171 | printed both under "Source files for which symbols have been | |
2172 | read" and "Source files for which symbols will be read in on | |
2173 | demand". I consider this a reasonable way to deal with the | |
2174 | situation. I'm not sure whether this can also happen for | |
2175 | symtabs; it doesn't hurt to check. */ | |
2176 | ||
2177 | /* Was NAME already seen? */ | |
2178 | if (filename_seen (name, 1, first)) | |
2179 | { | |
2180 | /* Yes; don't print it again. */ | |
2181 | return; | |
2182 | } | |
2183 | /* No; print it and reset *FIRST. */ | |
c906108c SS |
2184 | if (*first) |
2185 | { | |
2186 | *first = 0; | |
2187 | } | |
2188 | else | |
2189 | { | |
2190 | printf_filtered (", "); | |
2191 | } | |
2192 | ||
2193 | wrap_here (""); | |
2194 | fputs_filtered (name, gdb_stdout); | |
c5aa993b | 2195 | } |
c906108c SS |
2196 | |
2197 | static void | |
fba45db2 | 2198 | sources_info (char *ignore, int from_tty) |
c906108c SS |
2199 | { |
2200 | register struct symtab *s; | |
2201 | register struct partial_symtab *ps; | |
2202 | register struct objfile *objfile; | |
2203 | int first; | |
c5aa993b | 2204 | |
c906108c SS |
2205 | if (!have_full_symbols () && !have_partial_symbols ()) |
2206 | { | |
e85428fc | 2207 | error ("No symbol table is loaded. Use the \"file\" command."); |
c906108c | 2208 | } |
c5aa993b | 2209 | |
c906108c SS |
2210 | printf_filtered ("Source files for which symbols have been read in:\n\n"); |
2211 | ||
2212 | first = 1; | |
2213 | ALL_SYMTABS (objfile, s) | |
c5aa993b JM |
2214 | { |
2215 | output_source_filename (s->filename, &first); | |
2216 | } | |
c906108c | 2217 | printf_filtered ("\n\n"); |
c5aa993b | 2218 | |
c906108c SS |
2219 | printf_filtered ("Source files for which symbols will be read in on demand:\n\n"); |
2220 | ||
2221 | first = 1; | |
2222 | ALL_PSYMTABS (objfile, ps) | |
c5aa993b JM |
2223 | { |
2224 | if (!ps->readin) | |
2225 | { | |
2226 | output_source_filename (ps->filename, &first); | |
2227 | } | |
2228 | } | |
c906108c SS |
2229 | printf_filtered ("\n"); |
2230 | } | |
2231 | ||
2232 | static int | |
fd118b61 | 2233 | file_matches (char *file, char *files[], int nfiles) |
c906108c SS |
2234 | { |
2235 | int i; | |
2236 | ||
2237 | if (file != NULL && nfiles != 0) | |
2238 | { | |
2239 | for (i = 0; i < nfiles; i++) | |
c5aa993b | 2240 | { |
31889e00 | 2241 | if (strcmp (files[i], lbasename (file)) == 0) |
c5aa993b JM |
2242 | return 1; |
2243 | } | |
c906108c SS |
2244 | } |
2245 | else if (nfiles == 0) | |
2246 | return 1; | |
2247 | return 0; | |
2248 | } | |
2249 | ||
2250 | /* Free any memory associated with a search. */ | |
2251 | void | |
fba45db2 | 2252 | free_search_symbols (struct symbol_search *symbols) |
c906108c SS |
2253 | { |
2254 | struct symbol_search *p; | |
2255 | struct symbol_search *next; | |
2256 | ||
2257 | for (p = symbols; p != NULL; p = next) | |
2258 | { | |
2259 | next = p->next; | |
b8c9b27d | 2260 | xfree (p); |
c906108c SS |
2261 | } |
2262 | } | |
2263 | ||
5bd98722 AC |
2264 | static void |
2265 | do_free_search_symbols_cleanup (void *symbols) | |
2266 | { | |
2267 | free_search_symbols (symbols); | |
2268 | } | |
2269 | ||
2270 | struct cleanup * | |
2271 | make_cleanup_free_search_symbols (struct symbol_search *symbols) | |
2272 | { | |
2273 | return make_cleanup (do_free_search_symbols_cleanup, symbols); | |
2274 | } | |
2275 | ||
2276 | ||
c906108c SS |
2277 | /* Search the symbol table for matches to the regular expression REGEXP, |
2278 | returning the results in *MATCHES. | |
2279 | ||
2280 | Only symbols of KIND are searched: | |
c5aa993b JM |
2281 | FUNCTIONS_NAMESPACE - search all functions |
2282 | TYPES_NAMESPACE - search all type names | |
2283 | METHODS_NAMESPACE - search all methods NOT IMPLEMENTED | |
2284 | VARIABLES_NAMESPACE - search all symbols, excluding functions, type names, | |
2285 | and constants (enums) | |
c906108c SS |
2286 | |
2287 | free_search_symbols should be called when *MATCHES is no longer needed. | |
c5aa993b | 2288 | */ |
c906108c | 2289 | void |
fd118b61 KB |
2290 | search_symbols (char *regexp, namespace_enum kind, int nfiles, char *files[], |
2291 | struct symbol_search **matches) | |
c906108c SS |
2292 | { |
2293 | register struct symtab *s; | |
2294 | register struct partial_symtab *ps; | |
2295 | register struct blockvector *bv; | |
2296 | struct blockvector *prev_bv = 0; | |
2297 | register struct block *b; | |
2298 | register int i = 0; | |
2299 | register int j; | |
2300 | register struct symbol *sym; | |
2301 | struct partial_symbol **psym; | |
2302 | struct objfile *objfile; | |
2303 | struct minimal_symbol *msymbol; | |
2304 | char *val; | |
2305 | int found_misc = 0; | |
2306 | static enum minimal_symbol_type types[] | |
c5aa993b JM |
2307 | = |
2308 | {mst_data, mst_text, mst_abs, mst_unknown}; | |
c906108c | 2309 | static enum minimal_symbol_type types2[] |
c5aa993b JM |
2310 | = |
2311 | {mst_bss, mst_file_text, mst_abs, mst_unknown}; | |
c906108c | 2312 | static enum minimal_symbol_type types3[] |
c5aa993b JM |
2313 | = |
2314 | {mst_file_data, mst_solib_trampoline, mst_abs, mst_unknown}; | |
c906108c | 2315 | static enum minimal_symbol_type types4[] |
c5aa993b JM |
2316 | = |
2317 | {mst_file_bss, mst_text, mst_abs, mst_unknown}; | |
c906108c SS |
2318 | enum minimal_symbol_type ourtype; |
2319 | enum minimal_symbol_type ourtype2; | |
2320 | enum minimal_symbol_type ourtype3; | |
2321 | enum minimal_symbol_type ourtype4; | |
2322 | struct symbol_search *sr; | |
2323 | struct symbol_search *psr; | |
2324 | struct symbol_search *tail; | |
2325 | struct cleanup *old_chain = NULL; | |
2326 | ||
993f3aa5 | 2327 | if (kind < VARIABLES_NAMESPACE) |
c906108c SS |
2328 | error ("must search on specific namespace"); |
2329 | ||
52204a0b DT |
2330 | ourtype = types[(int) (kind - VARIABLES_NAMESPACE)]; |
2331 | ourtype2 = types2[(int) (kind - VARIABLES_NAMESPACE)]; | |
2332 | ourtype3 = types3[(int) (kind - VARIABLES_NAMESPACE)]; | |
2333 | ourtype4 = types4[(int) (kind - VARIABLES_NAMESPACE)]; | |
c906108c SS |
2334 | |
2335 | sr = *matches = NULL; | |
2336 | tail = NULL; | |
2337 | ||
2338 | if (regexp != NULL) | |
2339 | { | |
2340 | /* Make sure spacing is right for C++ operators. | |
2341 | This is just a courtesy to make the matching less sensitive | |
2342 | to how many spaces the user leaves between 'operator' | |
2343 | and <TYPENAME> or <OPERATOR>. */ | |
2344 | char *opend; | |
2345 | char *opname = operator_chars (regexp, &opend); | |
2346 | if (*opname) | |
c5aa993b JM |
2347 | { |
2348 | int fix = -1; /* -1 means ok; otherwise number of spaces needed. */ | |
2349 | if (isalpha (*opname) || *opname == '_' || *opname == '$') | |
2350 | { | |
2351 | /* There should 1 space between 'operator' and 'TYPENAME'. */ | |
2352 | if (opname[-1] != ' ' || opname[-2] == ' ') | |
2353 | fix = 1; | |
2354 | } | |
2355 | else | |
2356 | { | |
2357 | /* There should 0 spaces between 'operator' and 'OPERATOR'. */ | |
2358 | if (opname[-1] == ' ') | |
2359 | fix = 0; | |
2360 | } | |
2361 | /* If wrong number of spaces, fix it. */ | |
2362 | if (fix >= 0) | |
2363 | { | |
2364 | char *tmp = (char *) alloca (opend - opname + 10); | |
2365 | sprintf (tmp, "operator%.*s%s", fix, " ", opname); | |
2366 | regexp = tmp; | |
2367 | } | |
2368 | } | |
2369 | ||
c906108c | 2370 | if (0 != (val = re_comp (regexp))) |
c5aa993b | 2371 | error ("Invalid regexp (%s): %s", val, regexp); |
c906108c SS |
2372 | } |
2373 | ||
2374 | /* Search through the partial symtabs *first* for all symbols | |
2375 | matching the regexp. That way we don't have to reproduce all of | |
2376 | the machinery below. */ | |
2377 | ||
2378 | ALL_PSYMTABS (objfile, ps) | |
c5aa993b JM |
2379 | { |
2380 | struct partial_symbol **bound, **gbound, **sbound; | |
2381 | int keep_going = 1; | |
2382 | ||
2383 | if (ps->readin) | |
2384 | continue; | |
2385 | ||
2386 | gbound = objfile->global_psymbols.list + ps->globals_offset + ps->n_global_syms; | |
2387 | sbound = objfile->static_psymbols.list + ps->statics_offset + ps->n_static_syms; | |
2388 | bound = gbound; | |
2389 | ||
2390 | /* Go through all of the symbols stored in a partial | |
2391 | symtab in one loop. */ | |
2392 | psym = objfile->global_psymbols.list + ps->globals_offset; | |
2393 | while (keep_going) | |
2394 | { | |
2395 | if (psym >= bound) | |
2396 | { | |
2397 | if (bound == gbound && ps->n_static_syms != 0) | |
2398 | { | |
2399 | psym = objfile->static_psymbols.list + ps->statics_offset; | |
2400 | bound = sbound; | |
2401 | } | |
2402 | else | |
2403 | keep_going = 0; | |
2404 | continue; | |
2405 | } | |
2406 | else | |
2407 | { | |
2408 | QUIT; | |
2409 | ||
2410 | /* If it would match (logic taken from loop below) | |
2411 | load the file and go on to the next one */ | |
2412 | if (file_matches (ps->filename, files, nfiles) | |
2413 | && ((regexp == NULL || SYMBOL_MATCHES_REGEXP (*psym)) | |
2414 | && ((kind == VARIABLES_NAMESPACE && SYMBOL_CLASS (*psym) != LOC_TYPEDEF | |
2415 | && SYMBOL_CLASS (*psym) != LOC_BLOCK) | |
2416 | || (kind == FUNCTIONS_NAMESPACE && SYMBOL_CLASS (*psym) == LOC_BLOCK) | |
2417 | || (kind == TYPES_NAMESPACE && SYMBOL_CLASS (*psym) == LOC_TYPEDEF) | |
2418 | || (kind == METHODS_NAMESPACE && SYMBOL_CLASS (*psym) == LOC_BLOCK)))) | |
2419 | { | |
2420 | PSYMTAB_TO_SYMTAB (ps); | |
2421 | keep_going = 0; | |
2422 | } | |
2423 | } | |
2424 | psym++; | |
2425 | } | |
2426 | } | |
c906108c SS |
2427 | |
2428 | /* Here, we search through the minimal symbol tables for functions | |
2429 | and variables that match, and force their symbols to be read. | |
2430 | This is in particular necessary for demangled variable names, | |
2431 | which are no longer put into the partial symbol tables. | |
2432 | The symbol will then be found during the scan of symtabs below. | |
2433 | ||
2434 | For functions, find_pc_symtab should succeed if we have debug info | |
2435 | for the function, for variables we have to call lookup_symbol | |
2436 | to determine if the variable has debug info. | |
2437 | If the lookup fails, set found_misc so that we will rescan to print | |
2438 | any matching symbols without debug info. | |
c5aa993b | 2439 | */ |
c906108c SS |
2440 | |
2441 | if (nfiles == 0 && (kind == VARIABLES_NAMESPACE || kind == FUNCTIONS_NAMESPACE)) | |
2442 | { | |
2443 | ALL_MSYMBOLS (objfile, msymbol) | |
c5aa993b JM |
2444 | { |
2445 | if (MSYMBOL_TYPE (msymbol) == ourtype || | |
2446 | MSYMBOL_TYPE (msymbol) == ourtype2 || | |
2447 | MSYMBOL_TYPE (msymbol) == ourtype3 || | |
2448 | MSYMBOL_TYPE (msymbol) == ourtype4) | |
2449 | { | |
2450 | if (regexp == NULL || SYMBOL_MATCHES_REGEXP (msymbol)) | |
2451 | { | |
2452 | if (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol))) | |
2453 | { | |
2454 | if (kind == FUNCTIONS_NAMESPACE | |
2455 | || lookup_symbol (SYMBOL_NAME (msymbol), | |
2456 | (struct block *) NULL, | |
2457 | VAR_NAMESPACE, | |
2458 | 0, (struct symtab **) NULL) == NULL) | |
2459 | found_misc = 1; | |
2460 | } | |
2461 | } | |
2462 | } | |
2463 | } | |
c906108c SS |
2464 | } |
2465 | ||
2466 | ALL_SYMTABS (objfile, s) | |
c5aa993b JM |
2467 | { |
2468 | bv = BLOCKVECTOR (s); | |
2469 | /* Often many files share a blockvector. | |
2470 | Scan each blockvector only once so that | |
2471 | we don't get every symbol many times. | |
2472 | It happens that the first symtab in the list | |
2473 | for any given blockvector is the main file. */ | |
2474 | if (bv != prev_bv) | |
2475 | for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++) | |
2476 | { | |
2477 | b = BLOCKVECTOR_BLOCK (bv, i); | |
2478 | /* Skip the sort if this block is always sorted. */ | |
2479 | if (!BLOCK_SHOULD_SORT (b)) | |
2480 | sort_block_syms (b); | |
2481 | for (j = 0; j < BLOCK_NSYMS (b); j++) | |
2482 | { | |
2483 | QUIT; | |
2484 | sym = BLOCK_SYM (b, j); | |
2485 | if (file_matches (s->filename, files, nfiles) | |
2486 | && ((regexp == NULL || SYMBOL_MATCHES_REGEXP (sym)) | |
2487 | && ((kind == VARIABLES_NAMESPACE && SYMBOL_CLASS (sym) != LOC_TYPEDEF | |
2488 | && SYMBOL_CLASS (sym) != LOC_BLOCK | |
2489 | && SYMBOL_CLASS (sym) != LOC_CONST) | |
2490 | || (kind == FUNCTIONS_NAMESPACE && SYMBOL_CLASS (sym) == LOC_BLOCK) | |
2491 | || (kind == TYPES_NAMESPACE && SYMBOL_CLASS (sym) == LOC_TYPEDEF) | |
2492 | || (kind == METHODS_NAMESPACE && SYMBOL_CLASS (sym) == LOC_BLOCK)))) | |
2493 | { | |
2494 | /* match */ | |
2495 | psr = (struct symbol_search *) xmalloc (sizeof (struct symbol_search)); | |
2496 | psr->block = i; | |
2497 | psr->symtab = s; | |
2498 | psr->symbol = sym; | |
2499 | psr->msymbol = NULL; | |
2500 | psr->next = NULL; | |
2501 | if (tail == NULL) | |
2502 | { | |
2503 | sr = psr; | |
5bd98722 | 2504 | old_chain = make_cleanup_free_search_symbols (sr); |
c5aa993b JM |
2505 | } |
2506 | else | |
2507 | tail->next = psr; | |
2508 | tail = psr; | |
2509 | } | |
2510 | } | |
2511 | } | |
2512 | prev_bv = bv; | |
2513 | } | |
c906108c SS |
2514 | |
2515 | /* If there are no eyes, avoid all contact. I mean, if there are | |
2516 | no debug symbols, then print directly from the msymbol_vector. */ | |
2517 | ||
2518 | if (found_misc || kind != FUNCTIONS_NAMESPACE) | |
2519 | { | |
2520 | ALL_MSYMBOLS (objfile, msymbol) | |
c5aa993b JM |
2521 | { |
2522 | if (MSYMBOL_TYPE (msymbol) == ourtype || | |
2523 | MSYMBOL_TYPE (msymbol) == ourtype2 || | |
2524 | MSYMBOL_TYPE (msymbol) == ourtype3 || | |
2525 | MSYMBOL_TYPE (msymbol) == ourtype4) | |
2526 | { | |
2527 | if (regexp == NULL || SYMBOL_MATCHES_REGEXP (msymbol)) | |
2528 | { | |
2529 | /* Functions: Look up by address. */ | |
2530 | if (kind != FUNCTIONS_NAMESPACE || | |
2531 | (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol)))) | |
2532 | { | |
2533 | /* Variables/Absolutes: Look up by name */ | |
2534 | if (lookup_symbol (SYMBOL_NAME (msymbol), | |
2535 | (struct block *) NULL, VAR_NAMESPACE, | |
2536 | 0, (struct symtab **) NULL) == NULL) | |
2537 | { | |
2538 | /* match */ | |
2539 | psr = (struct symbol_search *) xmalloc (sizeof (struct symbol_search)); | |
2540 | psr->block = i; | |
2541 | psr->msymbol = msymbol; | |
2542 | psr->symtab = NULL; | |
2543 | psr->symbol = NULL; | |
2544 | psr->next = NULL; | |
2545 | if (tail == NULL) | |
2546 | { | |
2547 | sr = psr; | |
5bd98722 | 2548 | old_chain = make_cleanup_free_search_symbols (sr); |
c5aa993b JM |
2549 | } |
2550 | else | |
2551 | tail->next = psr; | |
2552 | tail = psr; | |
2553 | } | |
2554 | } | |
2555 | } | |
2556 | } | |
2557 | } | |
c906108c SS |
2558 | } |
2559 | ||
2560 | *matches = sr; | |
2561 | if (sr != NULL) | |
2562 | discard_cleanups (old_chain); | |
2563 | } | |
2564 | ||
2565 | /* Helper function for symtab_symbol_info, this function uses | |
2566 | the data returned from search_symbols() to print information | |
2567 | regarding the match to gdb_stdout. | |
c5aa993b | 2568 | */ |
c906108c | 2569 | static void |
fba45db2 KB |
2570 | print_symbol_info (namespace_enum kind, struct symtab *s, struct symbol *sym, |
2571 | int block, char *last) | |
c906108c SS |
2572 | { |
2573 | if (last == NULL || strcmp (last, s->filename) != 0) | |
2574 | { | |
2575 | fputs_filtered ("\nFile ", gdb_stdout); | |
2576 | fputs_filtered (s->filename, gdb_stdout); | |
2577 | fputs_filtered (":\n", gdb_stdout); | |
2578 | } | |
2579 | ||
2580 | if (kind != TYPES_NAMESPACE && block == STATIC_BLOCK) | |
2581 | printf_filtered ("static "); | |
c5aa993b | 2582 | |
c906108c SS |
2583 | /* Typedef that is not a C++ class */ |
2584 | if (kind == TYPES_NAMESPACE | |
2585 | && SYMBOL_NAMESPACE (sym) != STRUCT_NAMESPACE) | |
a5238fbc | 2586 | typedef_print (SYMBOL_TYPE (sym), sym, gdb_stdout); |
c906108c | 2587 | /* variable, func, or typedef-that-is-c++-class */ |
c5aa993b JM |
2588 | else if (kind < TYPES_NAMESPACE || |
2589 | (kind == TYPES_NAMESPACE && | |
2590 | SYMBOL_NAMESPACE (sym) == STRUCT_NAMESPACE)) | |
c906108c SS |
2591 | { |
2592 | type_print (SYMBOL_TYPE (sym), | |
c5aa993b JM |
2593 | (SYMBOL_CLASS (sym) == LOC_TYPEDEF |
2594 | ? "" : SYMBOL_SOURCE_NAME (sym)), | |
2595 | gdb_stdout, 0); | |
c906108c SS |
2596 | |
2597 | printf_filtered (";\n"); | |
2598 | } | |
2599 | else | |
2600 | { | |
c5aa993b | 2601 | #if 0 |
c906108c SS |
2602 | /* Tiemann says: "info methods was never implemented." */ |
2603 | char *demangled_name; | |
c5aa993b JM |
2604 | c_type_print_base (TYPE_FN_FIELD_TYPE (t, block), |
2605 | gdb_stdout, 0, 0); | |
2606 | c_type_print_varspec_prefix (TYPE_FN_FIELD_TYPE (t, block), | |
2607 | gdb_stdout, 0); | |
c906108c | 2608 | if (TYPE_FN_FIELD_STUB (t, block)) |
c5aa993b | 2609 | check_stub_method (TYPE_DOMAIN_TYPE (type), j, block); |
c906108c | 2610 | demangled_name = |
c5aa993b JM |
2611 | cplus_demangle (TYPE_FN_FIELD_PHYSNAME (t, block), |
2612 | DMGL_ANSI | DMGL_PARAMS); | |
c906108c | 2613 | if (demangled_name == NULL) |
c5aa993b JM |
2614 | fprintf_filtered (stream, "<badly mangled name %s>", |
2615 | TYPE_FN_FIELD_PHYSNAME (t, block)); | |
c906108c | 2616 | else |
c5aa993b JM |
2617 | { |
2618 | fputs_filtered (demangled_name, stream); | |
b8c9b27d | 2619 | xfree (demangled_name); |
c5aa993b JM |
2620 | } |
2621 | #endif | |
c906108c SS |
2622 | } |
2623 | } | |
2624 | ||
2625 | /* This help function for symtab_symbol_info() prints information | |
2626 | for non-debugging symbols to gdb_stdout. | |
c5aa993b | 2627 | */ |
c906108c | 2628 | static void |
fba45db2 | 2629 | print_msymbol_info (struct minimal_symbol *msymbol) |
c906108c | 2630 | { |
3ac4495a MS |
2631 | char *tmp; |
2632 | ||
2633 | if (TARGET_ADDR_BIT <= 32) | |
2634 | tmp = longest_local_hex_string_custom (SYMBOL_VALUE_ADDRESS (msymbol) | |
2635 | & (CORE_ADDR) 0xffffffff, | |
2636 | "08l"); | |
2637 | else | |
2638 | tmp = longest_local_hex_string_custom (SYMBOL_VALUE_ADDRESS (msymbol), | |
2639 | "016l"); | |
2640 | printf_filtered ("%s %s\n", | |
2641 | tmp, SYMBOL_SOURCE_NAME (msymbol)); | |
c906108c SS |
2642 | } |
2643 | ||
2644 | /* This is the guts of the commands "info functions", "info types", and | |
2645 | "info variables". It calls search_symbols to find all matches and then | |
2646 | print_[m]symbol_info to print out some useful information about the | |
2647 | matches. | |
c5aa993b | 2648 | */ |
c906108c | 2649 | static void |
fba45db2 | 2650 | symtab_symbol_info (char *regexp, namespace_enum kind, int from_tty) |
c906108c SS |
2651 | { |
2652 | static char *classnames[] | |
c5aa993b JM |
2653 | = |
2654 | {"variable", "function", "type", "method"}; | |
c906108c SS |
2655 | struct symbol_search *symbols; |
2656 | struct symbol_search *p; | |
2657 | struct cleanup *old_chain; | |
2658 | char *last_filename = NULL; | |
2659 | int first = 1; | |
2660 | ||
2661 | /* must make sure that if we're interrupted, symbols gets freed */ | |
2662 | search_symbols (regexp, kind, 0, (char **) NULL, &symbols); | |
5bd98722 | 2663 | old_chain = make_cleanup_free_search_symbols (symbols); |
c906108c SS |
2664 | |
2665 | printf_filtered (regexp | |
c5aa993b JM |
2666 | ? "All %ss matching regular expression \"%s\":\n" |
2667 | : "All defined %ss:\n", | |
52204a0b | 2668 | classnames[(int) (kind - VARIABLES_NAMESPACE)], regexp); |
c906108c SS |
2669 | |
2670 | for (p = symbols; p != NULL; p = p->next) | |
2671 | { | |
2672 | QUIT; | |
2673 | ||
2674 | if (p->msymbol != NULL) | |
c5aa993b JM |
2675 | { |
2676 | if (first) | |
2677 | { | |
2678 | printf_filtered ("\nNon-debugging symbols:\n"); | |
2679 | first = 0; | |
2680 | } | |
2681 | print_msymbol_info (p->msymbol); | |
2682 | } | |
c906108c | 2683 | else |
c5aa993b JM |
2684 | { |
2685 | print_symbol_info (kind, | |
2686 | p->symtab, | |
2687 | p->symbol, | |
2688 | p->block, | |
2689 | last_filename); | |
2690 | last_filename = p->symtab->filename; | |
2691 | } | |
c906108c SS |
2692 | } |
2693 | ||
2694 | do_cleanups (old_chain); | |
2695 | } | |
2696 | ||
2697 | static void | |
fba45db2 | 2698 | variables_info (char *regexp, int from_tty) |
c906108c SS |
2699 | { |
2700 | symtab_symbol_info (regexp, VARIABLES_NAMESPACE, from_tty); | |
2701 | } | |
2702 | ||
2703 | static void | |
fba45db2 | 2704 | functions_info (char *regexp, int from_tty) |
c906108c SS |
2705 | { |
2706 | symtab_symbol_info (regexp, FUNCTIONS_NAMESPACE, from_tty); | |
2707 | } | |
2708 | ||
357e46e7 | 2709 | |
c906108c | 2710 | static void |
fba45db2 | 2711 | types_info (char *regexp, int from_tty) |
c906108c SS |
2712 | { |
2713 | symtab_symbol_info (regexp, TYPES_NAMESPACE, from_tty); | |
2714 | } | |
2715 | ||
2716 | #if 0 | |
2717 | /* Tiemann says: "info methods was never implemented." */ | |
2718 | static void | |
fba45db2 | 2719 | methods_info (char *regexp) |
c906108c SS |
2720 | { |
2721 | symtab_symbol_info (regexp, METHODS_NAMESPACE, 0, from_tty); | |
2722 | } | |
2723 | #endif /* 0 */ | |
2724 | ||
2725 | /* Breakpoint all functions matching regular expression. */ | |
8b93c638 JM |
2726 | #ifdef UI_OUT |
2727 | void | |
fba45db2 | 2728 | rbreak_command_wrapper (char *regexp, int from_tty) |
8b93c638 JM |
2729 | { |
2730 | rbreak_command (regexp, from_tty); | |
2731 | } | |
2732 | #endif | |
c906108c | 2733 | static void |
fba45db2 | 2734 | rbreak_command (char *regexp, int from_tty) |
c906108c SS |
2735 | { |
2736 | struct symbol_search *ss; | |
2737 | struct symbol_search *p; | |
2738 | struct cleanup *old_chain; | |
2739 | ||
2740 | search_symbols (regexp, FUNCTIONS_NAMESPACE, 0, (char **) NULL, &ss); | |
5bd98722 | 2741 | old_chain = make_cleanup_free_search_symbols (ss); |
c906108c SS |
2742 | |
2743 | for (p = ss; p != NULL; p = p->next) | |
2744 | { | |
2745 | if (p->msymbol == NULL) | |
c5aa993b JM |
2746 | { |
2747 | char *string = (char *) alloca (strlen (p->symtab->filename) | |
2748 | + strlen (SYMBOL_NAME (p->symbol)) | |
2749 | + 4); | |
2750 | strcpy (string, p->symtab->filename); | |
2751 | strcat (string, ":'"); | |
2752 | strcat (string, SYMBOL_NAME (p->symbol)); | |
2753 | strcat (string, "'"); | |
2754 | break_command (string, from_tty); | |
2755 | print_symbol_info (FUNCTIONS_NAMESPACE, | |
2756 | p->symtab, | |
2757 | p->symbol, | |
2758 | p->block, | |
2759 | p->symtab->filename); | |
2760 | } | |
c906108c | 2761 | else |
c5aa993b JM |
2762 | { |
2763 | break_command (SYMBOL_NAME (p->msymbol), from_tty); | |
2764 | printf_filtered ("<function, no debug info> %s;\n", | |
2765 | SYMBOL_SOURCE_NAME (p->msymbol)); | |
2766 | } | |
c906108c SS |
2767 | } |
2768 | ||
2769 | do_cleanups (old_chain); | |
2770 | } | |
c906108c | 2771 | \f |
c5aa993b | 2772 | |
c906108c SS |
2773 | /* Return Nonzero if block a is lexically nested within block b, |
2774 | or if a and b have the same pc range. | |
2775 | Return zero otherwise. */ | |
2776 | int | |
fba45db2 | 2777 | contained_in (struct block *a, struct block *b) |
c906108c SS |
2778 | { |
2779 | if (!a || !b) | |
2780 | return 0; | |
2781 | return BLOCK_START (a) >= BLOCK_START (b) | |
c5aa993b | 2782 | && BLOCK_END (a) <= BLOCK_END (b); |
c906108c | 2783 | } |
c906108c | 2784 | \f |
c5aa993b | 2785 | |
c906108c SS |
2786 | /* Helper routine for make_symbol_completion_list. */ |
2787 | ||
2788 | static int return_val_size; | |
2789 | static int return_val_index; | |
2790 | static char **return_val; | |
2791 | ||
2792 | #define COMPLETION_LIST_ADD_SYMBOL(symbol, sym_text, len, text, word) \ | |
2793 | do { \ | |
2794 | if (SYMBOL_DEMANGLED_NAME (symbol) != NULL) \ | |
2795 | /* Put only the mangled name on the list. */ \ | |
2796 | /* Advantage: "b foo<TAB>" completes to "b foo(int, int)" */ \ | |
2797 | /* Disadvantage: "b foo__i<TAB>" doesn't complete. */ \ | |
2798 | completion_list_add_name \ | |
2799 | (SYMBOL_DEMANGLED_NAME (symbol), (sym_text), (len), (text), (word)); \ | |
2800 | else \ | |
2801 | completion_list_add_name \ | |
2802 | (SYMBOL_NAME (symbol), (sym_text), (len), (text), (word)); \ | |
2803 | } while (0) | |
2804 | ||
2805 | /* Test to see if the symbol specified by SYMNAME (which is already | |
c5aa993b JM |
2806 | demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN |
2807 | characters. If so, add it to the current completion list. */ | |
c906108c SS |
2808 | |
2809 | static void | |
fba45db2 KB |
2810 | completion_list_add_name (char *symname, char *sym_text, int sym_text_len, |
2811 | char *text, char *word) | |
c906108c SS |
2812 | { |
2813 | int newsize; | |
2814 | int i; | |
2815 | ||
2816 | /* clip symbols that cannot match */ | |
2817 | ||
2818 | if (strncmp (symname, sym_text, sym_text_len) != 0) | |
2819 | { | |
2820 | return; | |
2821 | } | |
2822 | ||
c906108c SS |
2823 | /* We have a match for a completion, so add SYMNAME to the current list |
2824 | of matches. Note that the name is moved to freshly malloc'd space. */ | |
2825 | ||
2826 | { | |
2827 | char *new; | |
2828 | if (word == sym_text) | |
2829 | { | |
2830 | new = xmalloc (strlen (symname) + 5); | |
2831 | strcpy (new, symname); | |
2832 | } | |
2833 | else if (word > sym_text) | |
2834 | { | |
2835 | /* Return some portion of symname. */ | |
2836 | new = xmalloc (strlen (symname) + 5); | |
2837 | strcpy (new, symname + (word - sym_text)); | |
2838 | } | |
2839 | else | |
2840 | { | |
2841 | /* Return some of SYM_TEXT plus symname. */ | |
2842 | new = xmalloc (strlen (symname) + (sym_text - word) + 5); | |
2843 | strncpy (new, word, sym_text - word); | |
2844 | new[sym_text - word] = '\0'; | |
2845 | strcat (new, symname); | |
2846 | } | |
2847 | ||
c906108c SS |
2848 | if (return_val_index + 3 > return_val_size) |
2849 | { | |
2850 | newsize = (return_val_size *= 2) * sizeof (char *); | |
2851 | return_val = (char **) xrealloc ((char *) return_val, newsize); | |
2852 | } | |
2853 | return_val[return_val_index++] = new; | |
2854 | return_val[return_val_index] = NULL; | |
2855 | } | |
2856 | } | |
2857 | ||
c94fdfd0 EZ |
2858 | /* Return a NULL terminated array of all symbols (regardless of class) |
2859 | which begin by matching TEXT. If the answer is no symbols, then | |
2860 | the return value is an array which contains only a NULL pointer. | |
c906108c SS |
2861 | |
2862 | Problem: All of the symbols have to be copied because readline frees them. | |
2863 | I'm not going to worry about this; hopefully there won't be that many. */ | |
2864 | ||
2865 | char ** | |
fba45db2 | 2866 | make_symbol_completion_list (char *text, char *word) |
c906108c SS |
2867 | { |
2868 | register struct symbol *sym; | |
2869 | register struct symtab *s; | |
2870 | register struct partial_symtab *ps; | |
2871 | register struct minimal_symbol *msymbol; | |
2872 | register struct objfile *objfile; | |
2873 | register struct block *b, *surrounding_static_block = 0; | |
2874 | register int i, j; | |
2875 | struct partial_symbol **psym; | |
2876 | /* The symbol we are completing on. Points in same buffer as text. */ | |
2877 | char *sym_text; | |
2878 | /* Length of sym_text. */ | |
2879 | int sym_text_len; | |
2880 | ||
2881 | /* Now look for the symbol we are supposed to complete on. | |
2882 | FIXME: This should be language-specific. */ | |
2883 | { | |
2884 | char *p; | |
2885 | char quote_found; | |
2886 | char *quote_pos = NULL; | |
2887 | ||
2888 | /* First see if this is a quoted string. */ | |
2889 | quote_found = '\0'; | |
2890 | for (p = text; *p != '\0'; ++p) | |
2891 | { | |
2892 | if (quote_found != '\0') | |
2893 | { | |
2894 | if (*p == quote_found) | |
2895 | /* Found close quote. */ | |
2896 | quote_found = '\0'; | |
2897 | else if (*p == '\\' && p[1] == quote_found) | |
2898 | /* A backslash followed by the quote character | |
c5aa993b | 2899 | doesn't end the string. */ |
c906108c SS |
2900 | ++p; |
2901 | } | |
2902 | else if (*p == '\'' || *p == '"') | |
2903 | { | |
2904 | quote_found = *p; | |
2905 | quote_pos = p; | |
2906 | } | |
2907 | } | |
2908 | if (quote_found == '\'') | |
2909 | /* A string within single quotes can be a symbol, so complete on it. */ | |
2910 | sym_text = quote_pos + 1; | |
2911 | else if (quote_found == '"') | |
2912 | /* A double-quoted string is never a symbol, nor does it make sense | |
c5aa993b | 2913 | to complete it any other way. */ |
c94fdfd0 EZ |
2914 | { |
2915 | return_val = (char **) xmalloc (sizeof (char *)); | |
2916 | return_val[0] = NULL; | |
2917 | return return_val; | |
2918 | } | |
c906108c SS |
2919 | else |
2920 | { | |
2921 | /* It is not a quoted string. Break it based on the characters | |
2922 | which are in symbols. */ | |
2923 | while (p > text) | |
2924 | { | |
2925 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0') | |
2926 | --p; | |
2927 | else | |
2928 | break; | |
2929 | } | |
2930 | sym_text = p; | |
2931 | } | |
2932 | } | |
2933 | ||
2934 | sym_text_len = strlen (sym_text); | |
2935 | ||
2936 | return_val_size = 100; | |
2937 | return_val_index = 0; | |
2938 | return_val = (char **) xmalloc ((return_val_size + 1) * sizeof (char *)); | |
2939 | return_val[0] = NULL; | |
2940 | ||
2941 | /* Look through the partial symtabs for all symbols which begin | |
2942 | by matching SYM_TEXT. Add each one that you find to the list. */ | |
2943 | ||
2944 | ALL_PSYMTABS (objfile, ps) | |
c5aa993b JM |
2945 | { |
2946 | /* If the psymtab's been read in we'll get it when we search | |
2947 | through the blockvector. */ | |
2948 | if (ps->readin) | |
2949 | continue; | |
2950 | ||
2951 | for (psym = objfile->global_psymbols.list + ps->globals_offset; | |
2952 | psym < (objfile->global_psymbols.list + ps->globals_offset | |
2953 | + ps->n_global_syms); | |
2954 | psym++) | |
2955 | { | |
2956 | /* If interrupted, then quit. */ | |
2957 | QUIT; | |
2958 | COMPLETION_LIST_ADD_SYMBOL (*psym, sym_text, sym_text_len, text, word); | |
2959 | } | |
2960 | ||
2961 | for (psym = objfile->static_psymbols.list + ps->statics_offset; | |
2962 | psym < (objfile->static_psymbols.list + ps->statics_offset | |
2963 | + ps->n_static_syms); | |
2964 | psym++) | |
2965 | { | |
2966 | QUIT; | |
2967 | COMPLETION_LIST_ADD_SYMBOL (*psym, sym_text, sym_text_len, text, word); | |
2968 | } | |
2969 | } | |
c906108c SS |
2970 | |
2971 | /* At this point scan through the misc symbol vectors and add each | |
2972 | symbol you find to the list. Eventually we want to ignore | |
2973 | anything that isn't a text symbol (everything else will be | |
2974 | handled by the psymtab code above). */ | |
2975 | ||
2976 | ALL_MSYMBOLS (objfile, msymbol) | |
c5aa993b JM |
2977 | { |
2978 | QUIT; | |
2979 | COMPLETION_LIST_ADD_SYMBOL (msymbol, sym_text, sym_text_len, text, word); | |
2980 | } | |
c906108c SS |
2981 | |
2982 | /* Search upwards from currently selected frame (so that we can | |
2983 | complete on local vars. */ | |
2984 | ||
2985 | for (b = get_selected_block (); b != NULL; b = BLOCK_SUPERBLOCK (b)) | |
2986 | { | |
2987 | if (!BLOCK_SUPERBLOCK (b)) | |
2988 | { | |
c5aa993b | 2989 | surrounding_static_block = b; /* For elmin of dups */ |
c906108c | 2990 | } |
c5aa993b | 2991 | |
c906108c | 2992 | /* Also catch fields of types defined in this places which match our |
c5aa993b | 2993 | text string. Only complete on types visible from current context. */ |
c906108c | 2994 | |
e88c90f2 | 2995 | ALL_BLOCK_SYMBOLS (b, i, sym) |
c906108c | 2996 | { |
c906108c SS |
2997 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
2998 | if (SYMBOL_CLASS (sym) == LOC_TYPEDEF) | |
2999 | { | |
3000 | struct type *t = SYMBOL_TYPE (sym); | |
3001 | enum type_code c = TYPE_CODE (t); | |
3002 | ||
3003 | if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT) | |
3004 | { | |
3005 | for (j = TYPE_N_BASECLASSES (t); j < TYPE_NFIELDS (t); j++) | |
3006 | { | |
3007 | if (TYPE_FIELD_NAME (t, j)) | |
3008 | { | |
3009 | completion_list_add_name (TYPE_FIELD_NAME (t, j), | |
c5aa993b | 3010 | sym_text, sym_text_len, text, word); |
c906108c SS |
3011 | } |
3012 | } | |
3013 | } | |
3014 | } | |
3015 | } | |
3016 | } | |
3017 | ||
3018 | /* Go through the symtabs and check the externs and statics for | |
3019 | symbols which match. */ | |
3020 | ||
3021 | ALL_SYMTABS (objfile, s) | |
c5aa993b JM |
3022 | { |
3023 | QUIT; | |
3024 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK); | |
e88c90f2 | 3025 | ALL_BLOCK_SYMBOLS (b, i, sym) |
c5aa993b | 3026 | { |
c5aa993b JM |
3027 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
3028 | } | |
3029 | } | |
c906108c SS |
3030 | |
3031 | ALL_SYMTABS (objfile, s) | |
c5aa993b JM |
3032 | { |
3033 | QUIT; | |
3034 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK); | |
3035 | /* Don't do this block twice. */ | |
3036 | if (b == surrounding_static_block) | |
3037 | continue; | |
e88c90f2 | 3038 | ALL_BLOCK_SYMBOLS (b, i, sym) |
c5aa993b | 3039 | { |
c5aa993b JM |
3040 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
3041 | } | |
3042 | } | |
c906108c SS |
3043 | |
3044 | return (return_val); | |
3045 | } | |
3046 | ||
c94fdfd0 EZ |
3047 | /* Like make_symbol_completion_list, but returns a list of symbols |
3048 | defined in a source file FILE. */ | |
3049 | ||
3050 | char ** | |
3051 | make_file_symbol_completion_list (char *text, char *word, char *srcfile) | |
3052 | { | |
3053 | register struct symbol *sym; | |
3054 | register struct symtab *s; | |
3055 | register struct block *b; | |
3056 | register int i; | |
3057 | /* The symbol we are completing on. Points in same buffer as text. */ | |
3058 | char *sym_text; | |
3059 | /* Length of sym_text. */ | |
3060 | int sym_text_len; | |
3061 | ||
3062 | /* Now look for the symbol we are supposed to complete on. | |
3063 | FIXME: This should be language-specific. */ | |
3064 | { | |
3065 | char *p; | |
3066 | char quote_found; | |
3067 | char *quote_pos = NULL; | |
3068 | ||
3069 | /* First see if this is a quoted string. */ | |
3070 | quote_found = '\0'; | |
3071 | for (p = text; *p != '\0'; ++p) | |
3072 | { | |
3073 | if (quote_found != '\0') | |
3074 | { | |
3075 | if (*p == quote_found) | |
3076 | /* Found close quote. */ | |
3077 | quote_found = '\0'; | |
3078 | else if (*p == '\\' && p[1] == quote_found) | |
3079 | /* A backslash followed by the quote character | |
3080 | doesn't end the string. */ | |
3081 | ++p; | |
3082 | } | |
3083 | else if (*p == '\'' || *p == '"') | |
3084 | { | |
3085 | quote_found = *p; | |
3086 | quote_pos = p; | |
3087 | } | |
3088 | } | |
3089 | if (quote_found == '\'') | |
3090 | /* A string within single quotes can be a symbol, so complete on it. */ | |
3091 | sym_text = quote_pos + 1; | |
3092 | else if (quote_found == '"') | |
3093 | /* A double-quoted string is never a symbol, nor does it make sense | |
3094 | to complete it any other way. */ | |
3095 | { | |
3096 | return_val = (char **) xmalloc (sizeof (char *)); | |
3097 | return_val[0] = NULL; | |
3098 | return return_val; | |
3099 | } | |
3100 | else | |
3101 | { | |
3102 | /* It is not a quoted string. Break it based on the characters | |
3103 | which are in symbols. */ | |
3104 | while (p > text) | |
3105 | { | |
3106 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0') | |
3107 | --p; | |
3108 | else | |
3109 | break; | |
3110 | } | |
3111 | sym_text = p; | |
3112 | } | |
3113 | } | |
3114 | ||
3115 | sym_text_len = strlen (sym_text); | |
3116 | ||
3117 | return_val_size = 10; | |
3118 | return_val_index = 0; | |
3119 | return_val = (char **) xmalloc ((return_val_size + 1) * sizeof (char *)); | |
3120 | return_val[0] = NULL; | |
3121 | ||
3122 | /* Find the symtab for SRCFILE (this loads it if it was not yet read | |
3123 | in). */ | |
3124 | s = lookup_symtab (srcfile); | |
3125 | if (s == NULL) | |
3126 | { | |
3127 | /* Maybe they typed the file with leading directories, while the | |
3128 | symbol tables record only its basename. */ | |
31889e00 | 3129 | const char *tail = lbasename (srcfile); |
c94fdfd0 EZ |
3130 | |
3131 | if (tail > srcfile) | |
3132 | s = lookup_symtab (tail); | |
3133 | } | |
3134 | ||
3135 | /* If we have no symtab for that file, return an empty list. */ | |
3136 | if (s == NULL) | |
3137 | return (return_val); | |
3138 | ||
3139 | /* Go through this symtab and check the externs and statics for | |
3140 | symbols which match. */ | |
3141 | ||
3142 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK); | |
e88c90f2 | 3143 | ALL_BLOCK_SYMBOLS (b, i, sym) |
c94fdfd0 | 3144 | { |
c94fdfd0 EZ |
3145 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
3146 | } | |
3147 | ||
3148 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK); | |
e88c90f2 | 3149 | ALL_BLOCK_SYMBOLS (b, i, sym) |
c94fdfd0 | 3150 | { |
c94fdfd0 EZ |
3151 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
3152 | } | |
3153 | ||
3154 | return (return_val); | |
3155 | } | |
3156 | ||
3157 | /* A helper function for make_source_files_completion_list. It adds | |
3158 | another file name to a list of possible completions, growing the | |
3159 | list as necessary. */ | |
3160 | ||
3161 | static void | |
3162 | add_filename_to_list (const char *fname, char *text, char *word, | |
3163 | char ***list, int *list_used, int *list_alloced) | |
3164 | { | |
3165 | char *new; | |
3166 | size_t fnlen = strlen (fname); | |
3167 | ||
3168 | if (*list_used + 1 >= *list_alloced) | |
3169 | { | |
3170 | *list_alloced *= 2; | |
3171 | *list = (char **) xrealloc ((char *) *list, | |
3172 | *list_alloced * sizeof (char *)); | |
3173 | } | |
3174 | ||
3175 | if (word == text) | |
3176 | { | |
3177 | /* Return exactly fname. */ | |
3178 | new = xmalloc (fnlen + 5); | |
3179 | strcpy (new, fname); | |
3180 | } | |
3181 | else if (word > text) | |
3182 | { | |
3183 | /* Return some portion of fname. */ | |
3184 | new = xmalloc (fnlen + 5); | |
3185 | strcpy (new, fname + (word - text)); | |
3186 | } | |
3187 | else | |
3188 | { | |
3189 | /* Return some of TEXT plus fname. */ | |
3190 | new = xmalloc (fnlen + (text - word) + 5); | |
3191 | strncpy (new, word, text - word); | |
3192 | new[text - word] = '\0'; | |
3193 | strcat (new, fname); | |
3194 | } | |
3195 | (*list)[*list_used] = new; | |
3196 | (*list)[++*list_used] = NULL; | |
3197 | } | |
3198 | ||
3199 | static int | |
3200 | not_interesting_fname (const char *fname) | |
3201 | { | |
3202 | static const char *illegal_aliens[] = { | |
3203 | "_globals_", /* inserted by coff_symtab_read */ | |
3204 | NULL | |
3205 | }; | |
3206 | int i; | |
3207 | ||
3208 | for (i = 0; illegal_aliens[i]; i++) | |
3209 | { | |
3210 | if (strcmp (fname, illegal_aliens[i]) == 0) | |
3211 | return 1; | |
3212 | } | |
3213 | return 0; | |
3214 | } | |
3215 | ||
3216 | /* Return a NULL terminated array of all source files whose names | |
3217 | begin with matching TEXT. The file names are looked up in the | |
3218 | symbol tables of this program. If the answer is no matchess, then | |
3219 | the return value is an array which contains only a NULL pointer. */ | |
3220 | ||
3221 | char ** | |
3222 | make_source_files_completion_list (char *text, char *word) | |
3223 | { | |
3224 | register struct symtab *s; | |
3225 | register struct partial_symtab *ps; | |
3226 | register struct objfile *objfile; | |
3227 | int first = 1; | |
3228 | int list_alloced = 1; | |
3229 | int list_used = 0; | |
3230 | size_t text_len = strlen (text); | |
3231 | char **list = (char **) xmalloc (list_alloced * sizeof (char *)); | |
31889e00 | 3232 | const char *base_name; |
c94fdfd0 EZ |
3233 | |
3234 | list[0] = NULL; | |
3235 | ||
3236 | if (!have_full_symbols () && !have_partial_symbols ()) | |
3237 | return list; | |
3238 | ||
3239 | ALL_SYMTABS (objfile, s) | |
3240 | { | |
3241 | if (not_interesting_fname (s->filename)) | |
3242 | continue; | |
3243 | if (!filename_seen (s->filename, 1, &first) | |
3244 | #if HAVE_DOS_BASED_FILE_SYSTEM | |
3245 | && strncasecmp (s->filename, text, text_len) == 0 | |
3246 | #else | |
3247 | && strncmp (s->filename, text, text_len) == 0 | |
3248 | #endif | |
3249 | ) | |
3250 | { | |
3251 | /* This file matches for a completion; add it to the current | |
3252 | list of matches. */ | |
3253 | add_filename_to_list (s->filename, text, word, | |
3254 | &list, &list_used, &list_alloced); | |
3255 | } | |
3256 | else | |
3257 | { | |
3258 | /* NOTE: We allow the user to type a base name when the | |
3259 | debug info records leading directories, but not the other | |
3260 | way around. This is what subroutines of breakpoint | |
3261 | command do when they parse file names. */ | |
31889e00 | 3262 | base_name = lbasename (s->filename); |
c94fdfd0 EZ |
3263 | if (base_name != s->filename |
3264 | && !filename_seen (base_name, 1, &first) | |
3265 | #if HAVE_DOS_BASED_FILE_SYSTEM | |
3266 | && strncasecmp (base_name, text, text_len) == 0 | |
3267 | #else | |
3268 | && strncmp (base_name, text, text_len) == 0 | |
3269 | #endif | |
3270 | ) | |
3271 | add_filename_to_list (base_name, text, word, | |
3272 | &list, &list_used, &list_alloced); | |
3273 | } | |
3274 | } | |
3275 | ||
3276 | ALL_PSYMTABS (objfile, ps) | |
3277 | { | |
3278 | if (not_interesting_fname (ps->filename)) | |
3279 | continue; | |
3280 | if (!ps->readin) | |
3281 | { | |
3282 | if (!filename_seen (ps->filename, 1, &first) | |
3283 | #if HAVE_DOS_BASED_FILE_SYSTEM | |
3284 | && strncasecmp (ps->filename, text, text_len) == 0 | |
3285 | #else | |
3286 | && strncmp (ps->filename, text, text_len) == 0 | |
3287 | #endif | |
3288 | ) | |
3289 | { | |
3290 | /* This file matches for a completion; add it to the | |
3291 | current list of matches. */ | |
3292 | add_filename_to_list (ps->filename, text, word, | |
3293 | &list, &list_used, &list_alloced); | |
3294 | ||
3295 | } | |
3296 | else | |
3297 | { | |
31889e00 | 3298 | base_name = lbasename (ps->filename); |
c94fdfd0 EZ |
3299 | if (base_name != ps->filename |
3300 | && !filename_seen (base_name, 1, &first) | |
3301 | #if HAVE_DOS_BASED_FILE_SYSTEM | |
3302 | && strncasecmp (base_name, text, text_len) == 0 | |
3303 | #else | |
3304 | && strncmp (base_name, text, text_len) == 0 | |
3305 | #endif | |
3306 | ) | |
3307 | add_filename_to_list (base_name, text, word, | |
3308 | &list, &list_used, &list_alloced); | |
3309 | } | |
3310 | } | |
3311 | } | |
3312 | ||
3313 | return list; | |
3314 | } | |
3315 | ||
c906108c SS |
3316 | /* Determine if PC is in the prologue of a function. The prologue is the area |
3317 | between the first instruction of a function, and the first executable line. | |
3318 | Returns 1 if PC *might* be in prologue, 0 if definately *not* in prologue. | |
3319 | ||
3320 | If non-zero, func_start is where we think the prologue starts, possibly | |
3321 | by previous examination of symbol table information. | |
3322 | */ | |
3323 | ||
3324 | int | |
fba45db2 | 3325 | in_prologue (CORE_ADDR pc, CORE_ADDR func_start) |
c906108c SS |
3326 | { |
3327 | struct symtab_and_line sal; | |
3328 | CORE_ADDR func_addr, func_end; | |
3329 | ||
54cf9c03 EZ |
3330 | /* We have several sources of information we can consult to figure |
3331 | this out. | |
3332 | - Compilers usually emit line number info that marks the prologue | |
3333 | as its own "source line". So the ending address of that "line" | |
3334 | is the end of the prologue. If available, this is the most | |
3335 | reliable method. | |
3336 | - The minimal symbols and partial symbols, which can usually tell | |
3337 | us the starting and ending addresses of a function. | |
3338 | - If we know the function's start address, we can call the | |
3339 | architecture-defined SKIP_PROLOGUE function to analyze the | |
3340 | instruction stream and guess where the prologue ends. | |
3341 | - Our `func_start' argument; if non-zero, this is the caller's | |
3342 | best guess as to the function's entry point. At the time of | |
3343 | this writing, handle_inferior_event doesn't get this right, so | |
3344 | it should be our last resort. */ | |
3345 | ||
3346 | /* Consult the partial symbol table, to find which function | |
3347 | the PC is in. */ | |
3348 | if (! find_pc_partial_function (pc, NULL, &func_addr, &func_end)) | |
3349 | { | |
3350 | CORE_ADDR prologue_end; | |
c906108c | 3351 | |
54cf9c03 EZ |
3352 | /* We don't even have minsym information, so fall back to using |
3353 | func_start, if given. */ | |
3354 | if (! func_start) | |
3355 | return 1; /* We *might* be in a prologue. */ | |
c906108c | 3356 | |
54cf9c03 | 3357 | prologue_end = SKIP_PROLOGUE (func_start); |
c906108c | 3358 | |
54cf9c03 EZ |
3359 | return func_start <= pc && pc < prologue_end; |
3360 | } | |
c906108c | 3361 | |
54cf9c03 EZ |
3362 | /* If we have line number information for the function, that's |
3363 | usually pretty reliable. */ | |
3364 | sal = find_pc_line (func_addr, 0); | |
c906108c | 3365 | |
54cf9c03 EZ |
3366 | /* Now sal describes the source line at the function's entry point, |
3367 | which (by convention) is the prologue. The end of that "line", | |
3368 | sal.end, is the end of the prologue. | |
3369 | ||
3370 | Note that, for functions whose source code is all on a single | |
3371 | line, the line number information doesn't always end up this way. | |
3372 | So we must verify that our purported end-of-prologue address is | |
3373 | *within* the function, not at its start or end. */ | |
3374 | if (sal.line == 0 | |
3375 | || sal.end <= func_addr | |
3376 | || func_end <= sal.end) | |
3377 | { | |
3378 | /* We don't have any good line number info, so use the minsym | |
3379 | information, together with the architecture-specific prologue | |
3380 | scanning code. */ | |
3381 | CORE_ADDR prologue_end = SKIP_PROLOGUE (func_addr); | |
c906108c | 3382 | |
54cf9c03 EZ |
3383 | return func_addr <= pc && pc < prologue_end; |
3384 | } | |
c906108c | 3385 | |
54cf9c03 EZ |
3386 | /* We have line number info, and it looks good. */ |
3387 | return func_addr <= pc && pc < sal.end; | |
c906108c SS |
3388 | } |
3389 | ||
3390 | ||
3391 | /* Begin overload resolution functions */ | |
3392 | /* Helper routine for make_symbol_completion_list. */ | |
3393 | ||
3394 | static int sym_return_val_size; | |
3395 | static int sym_return_val_index; | |
3396 | static struct symbol **sym_return_val; | |
3397 | ||
3398 | /* Test to see if the symbol specified by SYMNAME (which is already | |
c5aa993b JM |
3399 | demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN |
3400 | characters. If so, add it to the current completion list. */ | |
c906108c SS |
3401 | |
3402 | static void | |
fba45db2 | 3403 | overload_list_add_symbol (struct symbol *sym, char *oload_name) |
c906108c SS |
3404 | { |
3405 | int newsize; | |
3406 | int i; | |
3407 | ||
3408 | /* Get the demangled name without parameters */ | |
c5aa993b | 3409 | char *sym_name = cplus_demangle (SYMBOL_NAME (sym), DMGL_ARM | DMGL_ANSI); |
c906108c SS |
3410 | if (!sym_name) |
3411 | { | |
3412 | sym_name = (char *) xmalloc (strlen (SYMBOL_NAME (sym)) + 1); | |
3413 | strcpy (sym_name, SYMBOL_NAME (sym)); | |
3414 | } | |
3415 | ||
3416 | /* skip symbols that cannot match */ | |
3417 | if (strcmp (sym_name, oload_name) != 0) | |
917317f4 | 3418 | { |
b8c9b27d | 3419 | xfree (sym_name); |
917317f4 JM |
3420 | return; |
3421 | } | |
c906108c SS |
3422 | |
3423 | /* If there is no type information, we can't do anything, so skip */ | |
3424 | if (SYMBOL_TYPE (sym) == NULL) | |
3425 | return; | |
3426 | ||
3427 | /* skip any symbols that we've already considered. */ | |
3428 | for (i = 0; i < sym_return_val_index; ++i) | |
3429 | if (!strcmp (SYMBOL_NAME (sym), SYMBOL_NAME (sym_return_val[i]))) | |
3430 | return; | |
3431 | ||
3432 | /* We have a match for an overload instance, so add SYM to the current list | |
3433 | * of overload instances */ | |
3434 | if (sym_return_val_index + 3 > sym_return_val_size) | |
3435 | { | |
3436 | newsize = (sym_return_val_size *= 2) * sizeof (struct symbol *); | |
3437 | sym_return_val = (struct symbol **) xrealloc ((char *) sym_return_val, newsize); | |
3438 | } | |
3439 | sym_return_val[sym_return_val_index++] = sym; | |
3440 | sym_return_val[sym_return_val_index] = NULL; | |
c5aa993b | 3441 | |
b8c9b27d | 3442 | xfree (sym_name); |
c906108c SS |
3443 | } |
3444 | ||
3445 | /* Return a null-terminated list of pointers to function symbols that | |
3446 | * match name of the supplied symbol FSYM. | |
3447 | * This is used in finding all overloaded instances of a function name. | |
3448 | * This has been modified from make_symbol_completion_list. */ | |
3449 | ||
3450 | ||
3451 | struct symbol ** | |
fba45db2 | 3452 | make_symbol_overload_list (struct symbol *fsym) |
c906108c SS |
3453 | { |
3454 | register struct symbol *sym; | |
3455 | register struct symtab *s; | |
3456 | register struct partial_symtab *ps; | |
c906108c SS |
3457 | register struct objfile *objfile; |
3458 | register struct block *b, *surrounding_static_block = 0; | |
d4f3574e | 3459 | register int i; |
c906108c SS |
3460 | /* The name we are completing on. */ |
3461 | char *oload_name = NULL; | |
3462 | /* Length of name. */ | |
3463 | int oload_name_len = 0; | |
3464 | ||
3465 | /* Look for the symbol we are supposed to complete on. | |
3466 | * FIXME: This should be language-specific. */ | |
3467 | ||
3468 | oload_name = cplus_demangle (SYMBOL_NAME (fsym), DMGL_ARM | DMGL_ANSI); | |
3469 | if (!oload_name) | |
3470 | { | |
3471 | oload_name = (char *) xmalloc (strlen (SYMBOL_NAME (fsym)) + 1); | |
3472 | strcpy (oload_name, SYMBOL_NAME (fsym)); | |
3473 | } | |
3474 | oload_name_len = strlen (oload_name); | |
3475 | ||
3476 | sym_return_val_size = 100; | |
3477 | sym_return_val_index = 0; | |
3478 | sym_return_val = (struct symbol **) xmalloc ((sym_return_val_size + 1) * sizeof (struct symbol *)); | |
3479 | sym_return_val[0] = NULL; | |
3480 | ||
3481 | /* Look through the partial symtabs for all symbols which begin | |
917317f4 | 3482 | by matching OLOAD_NAME. Make sure we read that symbol table in. */ |
c906108c SS |
3483 | |
3484 | ALL_PSYMTABS (objfile, ps) | |
c5aa993b | 3485 | { |
d4f3574e SS |
3486 | struct partial_symbol **psym; |
3487 | ||
c5aa993b JM |
3488 | /* If the psymtab's been read in we'll get it when we search |
3489 | through the blockvector. */ | |
3490 | if (ps->readin) | |
3491 | continue; | |
3492 | ||
3493 | for (psym = objfile->global_psymbols.list + ps->globals_offset; | |
3494 | psym < (objfile->global_psymbols.list + ps->globals_offset | |
3495 | + ps->n_global_syms); | |
3496 | psym++) | |
3497 | { | |
3498 | /* If interrupted, then quit. */ | |
3499 | QUIT; | |
917317f4 JM |
3500 | /* This will cause the symbol table to be read if it has not yet been */ |
3501 | s = PSYMTAB_TO_SYMTAB (ps); | |
c5aa993b JM |
3502 | } |
3503 | ||
3504 | for (psym = objfile->static_psymbols.list + ps->statics_offset; | |
3505 | psym < (objfile->static_psymbols.list + ps->statics_offset | |
3506 | + ps->n_static_syms); | |
3507 | psym++) | |
3508 | { | |
3509 | QUIT; | |
917317f4 JM |
3510 | /* This will cause the symbol table to be read if it has not yet been */ |
3511 | s = PSYMTAB_TO_SYMTAB (ps); | |
c5aa993b JM |
3512 | } |
3513 | } | |
c906108c | 3514 | |
c906108c SS |
3515 | /* Search upwards from currently selected frame (so that we can |
3516 | complete on local vars. */ | |
3517 | ||
3518 | for (b = get_selected_block (); b != NULL; b = BLOCK_SUPERBLOCK (b)) | |
3519 | { | |
3520 | if (!BLOCK_SUPERBLOCK (b)) | |
3521 | { | |
c5aa993b | 3522 | surrounding_static_block = b; /* For elimination of dups */ |
c906108c | 3523 | } |
c5aa993b | 3524 | |
c906108c | 3525 | /* Also catch fields of types defined in this places which match our |
c5aa993b | 3526 | text string. Only complete on types visible from current context. */ |
c906108c | 3527 | |
e88c90f2 | 3528 | ALL_BLOCK_SYMBOLS (b, i, sym) |
c906108c | 3529 | { |
c906108c SS |
3530 | overload_list_add_symbol (sym, oload_name); |
3531 | } | |
3532 | } | |
3533 | ||
3534 | /* Go through the symtabs and check the externs and statics for | |
3535 | symbols which match. */ | |
3536 | ||
3537 | ALL_SYMTABS (objfile, s) | |
c5aa993b JM |
3538 | { |
3539 | QUIT; | |
3540 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK); | |
e88c90f2 | 3541 | ALL_BLOCK_SYMBOLS (b, i, sym) |
c5aa993b | 3542 | { |
c5aa993b JM |
3543 | overload_list_add_symbol (sym, oload_name); |
3544 | } | |
3545 | } | |
c906108c SS |
3546 | |
3547 | ALL_SYMTABS (objfile, s) | |
c5aa993b JM |
3548 | { |
3549 | QUIT; | |
3550 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK); | |
3551 | /* Don't do this block twice. */ | |
3552 | if (b == surrounding_static_block) | |
3553 | continue; | |
e88c90f2 | 3554 | ALL_BLOCK_SYMBOLS (b, i, sym) |
c5aa993b | 3555 | { |
c5aa993b JM |
3556 | overload_list_add_symbol (sym, oload_name); |
3557 | } | |
3558 | } | |
c906108c | 3559 | |
b8c9b27d | 3560 | xfree (oload_name); |
c906108c SS |
3561 | |
3562 | return (sym_return_val); | |
3563 | } | |
3564 | ||
3565 | /* End of overload resolution functions */ | |
c906108c | 3566 | \f |
50641945 FN |
3567 | struct symtabs_and_lines |
3568 | decode_line_spec (char *string, int funfirstline) | |
3569 | { | |
3570 | struct symtabs_and_lines sals; | |
3571 | if (string == 0) | |
3572 | error ("Empty line specification."); | |
3573 | sals = decode_line_1 (&string, funfirstline, | |
3574 | current_source_symtab, current_source_line, | |
3575 | (char ***) NULL); | |
3576 | if (*string) | |
3577 | error ("Junk at end of line specification: %s", string); | |
3578 | return sals; | |
3579 | } | |
c5aa993b | 3580 | |
51cc5b07 AC |
3581 | /* Track MAIN */ |
3582 | static char *name_of_main; | |
3583 | ||
3584 | void | |
3585 | set_main_name (const char *name) | |
3586 | { | |
3587 | if (name_of_main != NULL) | |
3588 | { | |
3589 | xfree (name_of_main); | |
3590 | name_of_main = NULL; | |
3591 | } | |
3592 | if (name != NULL) | |
3593 | { | |
3594 | name_of_main = xstrdup (name); | |
3595 | } | |
3596 | } | |
3597 | ||
3598 | char * | |
3599 | main_name (void) | |
3600 | { | |
3601 | if (name_of_main != NULL) | |
3602 | return name_of_main; | |
3603 | else | |
3604 | return "main"; | |
3605 | } | |
3606 | ||
3607 | ||
c906108c | 3608 | void |
fba45db2 | 3609 | _initialize_symtab (void) |
c906108c SS |
3610 | { |
3611 | add_info ("variables", variables_info, | |
c5aa993b | 3612 | "All global and static variable names, or those matching REGEXP."); |
c906108c | 3613 | if (dbx_commands) |
c5aa993b JM |
3614 | add_com ("whereis", class_info, variables_info, |
3615 | "All global and static variable names, or those matching REGEXP."); | |
c906108c SS |
3616 | |
3617 | add_info ("functions", functions_info, | |
3618 | "All function names, or those matching REGEXP."); | |
3619 | ||
357e46e7 | 3620 | |
c906108c SS |
3621 | /* FIXME: This command has at least the following problems: |
3622 | 1. It prints builtin types (in a very strange and confusing fashion). | |
3623 | 2. It doesn't print right, e.g. with | |
c5aa993b JM |
3624 | typedef struct foo *FOO |
3625 | type_print prints "FOO" when we want to make it (in this situation) | |
3626 | print "struct foo *". | |
c906108c SS |
3627 | I also think "ptype" or "whatis" is more likely to be useful (but if |
3628 | there is much disagreement "info types" can be fixed). */ | |
3629 | add_info ("types", types_info, | |
3630 | "All type names, or those matching REGEXP."); | |
3631 | ||
3632 | #if 0 | |
3633 | add_info ("methods", methods_info, | |
3634 | "All method names, or those matching REGEXP::REGEXP.\n\ | |
3635 | If the class qualifier is omitted, it is assumed to be the current scope.\n\ | |
3636 | If the first REGEXP is omitted, then all methods matching the second REGEXP\n\ | |
3637 | are listed."); | |
3638 | #endif | |
3639 | add_info ("sources", sources_info, | |
3640 | "Source files in the program."); | |
3641 | ||
3642 | add_com ("rbreak", class_breakpoint, rbreak_command, | |
c5aa993b | 3643 | "Set a breakpoint for all functions matching REGEXP."); |
c906108c SS |
3644 | |
3645 | if (xdb_commands) | |
3646 | { | |
3647 | add_com ("lf", class_info, sources_info, "Source files in the program"); | |
3648 | add_com ("lg", class_info, variables_info, | |
c5aa993b | 3649 | "All global and static variable names, or those matching REGEXP."); |
c906108c SS |
3650 | } |
3651 | ||
3652 | /* Initialize the one built-in type that isn't language dependent... */ | |
3653 | builtin_type_error = init_type (TYPE_CODE_ERROR, 0, 0, | |
3654 | "<unknown type>", (struct objfile *) NULL); | |
3655 | } |