Commit | Line | Data |
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bd5635a1 | 1 | /* Symbol table lookup for the GNU debugger, GDB. |
35a25840 SG |
2 | Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992 |
3 | Free Software Foundation, Inc. | |
bd5635a1 RP |
4 | |
5 | This file is part of GDB. | |
6 | ||
997a978c | 7 | This program is free software; you can redistribute it and/or modify |
bd5635a1 | 8 | it under the terms of the GNU General Public License as published by |
997a978c JG |
9 | the Free Software Foundation; either version 2 of the License, or |
10 | (at your option) any later version. | |
bd5635a1 | 11 | |
997a978c | 12 | This program is distributed in the hope that it will be useful, |
bd5635a1 RP |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
997a978c JG |
18 | along with this program; if not, write to the Free Software |
19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
bd5635a1 | 20 | |
bd5635a1 RP |
21 | #include "defs.h" |
22 | #include "symtab.h" | |
cba0d141 | 23 | #include "gdbtypes.h" |
bd5635a1 RP |
24 | #include "gdbcore.h" |
25 | #include "frame.h" | |
26 | #include "target.h" | |
27 | #include "value.h" | |
28 | #include "symfile.h" | |
35a25840 | 29 | #include "objfiles.h" |
bd5635a1 | 30 | #include "gdbcmd.h" |
35a25840 | 31 | #include "call-cmds.h" |
5594d534 | 32 | #include "regex.h" |
cba0d141 | 33 | #include "expression.h" |
997a978c | 34 | #include "language.h" |
f70be3e4 | 35 | #include "demangle.h" |
bd5635a1 RP |
36 | |
37 | #include <obstack.h> | |
38 | #include <assert.h> | |
39 | ||
40 | #include <sys/types.h> | |
41 | #include <fcntl.h> | |
42 | #include <string.h> | |
43 | #include <sys/stat.h> | |
2cd99985 | 44 | #include <ctype.h> |
bd5635a1 | 45 | |
cba0d141 | 46 | /* Prototypes for local functions */ |
bd5635a1 | 47 | |
f70be3e4 JG |
48 | static char * |
49 | expensive_mangler PARAMS ((const char *)); | |
50 | ||
2cd99985 | 51 | extern int |
cba0d141 JG |
52 | find_methods PARAMS ((struct type *, char *, char **, struct symbol **)); |
53 | ||
54 | static void | |
f70be3e4 | 55 | completion_list_add_symbol PARAMS ((char *, char *, int)); |
cba0d141 JG |
56 | |
57 | static struct symtabs_and_lines | |
58 | decode_line_2 PARAMS ((struct symbol *[], int, int)); | |
59 | ||
60 | static void | |
35a25840 | 61 | rbreak_command PARAMS ((char *, int)); |
cba0d141 JG |
62 | |
63 | static void | |
35a25840 | 64 | types_info PARAMS ((char *, int)); |
cba0d141 JG |
65 | |
66 | static void | |
35a25840 | 67 | functions_info PARAMS ((char *, int)); |
cba0d141 JG |
68 | |
69 | static void | |
35a25840 | 70 | variables_info PARAMS ((char *, int)); |
cba0d141 JG |
71 | |
72 | static void | |
35a25840 | 73 | sources_info PARAMS ((char *, int)); |
cba0d141 JG |
74 | |
75 | static void | |
35a25840 | 76 | list_symbols PARAMS ((char *, int, int)); |
cba0d141 JG |
77 | |
78 | static void | |
79 | output_source_filename PARAMS ((char *, int *)); | |
80 | ||
81 | static char * | |
82 | operator_chars PARAMS ((char *, char **)); | |
83 | ||
84 | static int | |
85 | find_line_common PARAMS ((struct linetable *, int, int *)); | |
86 | ||
87 | static struct partial_symbol * | |
88 | lookup_partial_symbol PARAMS ((struct partial_symtab *, const char *, | |
89 | int, enum namespace)); | |
90 | ||
91 | static struct partial_symbol * | |
92 | lookup_demangled_partial_symbol PARAMS ((const struct partial_symtab *, | |
93 | const char *)); | |
94 | ||
95 | static struct symbol * | |
96 | lookup_demangled_block_symbol PARAMS ((const struct block *, const char *)); | |
bd5635a1 | 97 | |
cba0d141 JG |
98 | static struct symtab * |
99 | lookup_symtab_1 PARAMS ((char *)); | |
100 | ||
101 | /* */ | |
bd5635a1 | 102 | |
997a978c | 103 | /* The single non-language-specific builtin type */ |
bd5635a1 RP |
104 | struct type *builtin_type_error; |
105 | ||
106 | /* Block in which the most recently searched-for symbol was found. | |
107 | Might be better to make this a parameter to lookup_symbol and | |
108 | value_of_this. */ | |
cba0d141 JG |
109 | |
110 | const struct block *block_found; | |
bd5635a1 RP |
111 | |
112 | char no_symtab_msg[] = "No symbol table is loaded. Use the \"file\" command."; | |
113 | ||
f70be3e4 JG |
114 | /* While the C++ support is still in flux, issue a possibly helpful hint on |
115 | using the new command completion feature on single quoted demangled C++ | |
116 | symbols. Remove when loose ends are cleaned up. FIXME -fnf */ | |
117 | ||
118 | void | |
119 | cplusplus_hint (name) | |
120 | char *name; | |
121 | { | |
122 | printf ("Hint: try '%s<TAB> or '%s<ESC-?>\n", name, name); | |
123 | printf ("(Note leading single quote.)\n"); | |
124 | } | |
125 | ||
bd5635a1 RP |
126 | /* Check for a symtab of a specific name; first in symtabs, then in |
127 | psymtabs. *If* there is no '/' in the name, a match after a '/' | |
128 | in the symtab filename will also work. */ | |
129 | ||
130 | static struct symtab * | |
131 | lookup_symtab_1 (name) | |
132 | char *name; | |
133 | { | |
134 | register struct symtab *s; | |
135 | register struct partial_symtab *ps; | |
35a25840 SG |
136 | register char *slash; |
137 | register int len; | |
cba0d141 | 138 | register struct objfile *objfile; |
bd5635a1 | 139 | |
35a25840 | 140 | ALL_SYMTABS (objfile, s) |
cba0d141 | 141 | { |
35a25840 | 142 | if (strcmp (name, s->filename) == 0) |
cba0d141 | 143 | { |
35a25840 | 144 | return (s); |
cba0d141 JG |
145 | } |
146 | } | |
35a25840 SG |
147 | |
148 | ALL_PSYMTABS (objfile, ps) | |
cba0d141 | 149 | { |
35a25840 | 150 | if (strcmp (name, ps -> filename) == 0) |
cba0d141 | 151 | { |
35a25840 | 152 | if (ps -> readin) |
cba0d141 | 153 | { |
35a25840 | 154 | error ("Internal: readin pst for `%s' found when no symtab found.", name); |
cba0d141 | 155 | } |
35a25840 | 156 | return (PSYMTAB_TO_SYMTAB (ps)); |
cba0d141 JG |
157 | } |
158 | } | |
35a25840 SG |
159 | |
160 | slash = strchr (name, '/'); | |
161 | len = strlen (name); | |
162 | ||
bd5635a1 RP |
163 | if (!slash) |
164 | { | |
35a25840 | 165 | ALL_SYMTABS (objfile, s) |
bd5635a1 | 166 | { |
35a25840 SG |
167 | int l = strlen (s->filename); |
168 | ||
169 | if (l > len | |
170 | && s->filename[l - len -1] == '/' | |
171 | && (strcmp (s->filename + l - len, name) == 0)) | |
cba0d141 | 172 | { |
35a25840 | 173 | return (s); |
cba0d141 | 174 | } |
bd5635a1 RP |
175 | } |
176 | ||
35a25840 | 177 | ALL_PSYMTABS (objfile, ps) |
bd5635a1 | 178 | { |
35a25840 | 179 | int l = strlen (ps -> filename); |
cba0d141 | 180 | |
35a25840 SG |
181 | if (l > len |
182 | && ps -> filename[l - len - 1] == '/' | |
183 | && (strcmp (ps->filename + l - len, name) == 0)) | |
184 | { | |
185 | if (ps -> readin) | |
cba0d141 | 186 | { |
35a25840 | 187 | error ("Internal: readin pst for `%s' found when no symtab found.", name); |
cba0d141 | 188 | } |
35a25840 | 189 | return (PSYMTAB_TO_SYMTAB (ps)); |
bd5635a1 RP |
190 | } |
191 | } | |
192 | } | |
cba0d141 | 193 | return (NULL); |
bd5635a1 RP |
194 | } |
195 | ||
196 | /* Lookup the symbol table of a source file named NAME. Try a couple | |
197 | of variations if the first lookup doesn't work. */ | |
198 | ||
199 | struct symtab * | |
200 | lookup_symtab (name) | |
201 | char *name; | |
202 | { | |
203 | register struct symtab *s; | |
204 | register char *copy; | |
205 | ||
206 | s = lookup_symtab_1 (name); | |
207 | if (s) return s; | |
208 | ||
209 | /* If name not found as specified, see if adding ".c" helps. */ | |
210 | ||
211 | copy = (char *) alloca (strlen (name) + 3); | |
212 | strcpy (copy, name); | |
213 | strcat (copy, ".c"); | |
214 | s = lookup_symtab_1 (copy); | |
215 | if (s) return s; | |
216 | ||
217 | /* We didn't find anything; die. */ | |
218 | return 0; | |
219 | } | |
220 | ||
221 | /* Lookup the partial symbol table of a source file named NAME. This | |
222 | only returns true on an exact match (ie. this semantics are | |
223 | different from lookup_symtab. */ | |
224 | ||
225 | struct partial_symtab * | |
226 | lookup_partial_symtab (name) | |
227 | char *name; | |
228 | { | |
cba0d141 JG |
229 | register struct partial_symtab *pst; |
230 | register struct objfile *objfile; | |
bd5635a1 | 231 | |
35a25840 | 232 | ALL_PSYMTABS (objfile, pst) |
bd5635a1 | 233 | { |
35a25840 | 234 | if (strcmp (name, pst -> filename) == 0) |
bd5635a1 | 235 | { |
35a25840 | 236 | return (pst); |
bd5635a1 | 237 | } |
35a25840 | 238 | } |
cba0d141 | 239 | return (NULL); |
bd5635a1 | 240 | } |
cba0d141 | 241 | \f |
bd5635a1 RP |
242 | /* Demangle a GDB method stub type. */ |
243 | char * | |
bcccec8c | 244 | gdb_mangle_name (type, i, j) |
bd5635a1 | 245 | struct type *type; |
bcccec8c | 246 | int i, j; |
bd5635a1 | 247 | { |
bcccec8c PB |
248 | int mangled_name_len; |
249 | char *mangled_name; | |
250 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, i); | |
251 | struct fn_field *method = &f[j]; | |
252 | char *field_name = TYPE_FN_FIELDLIST_NAME (type, i); | |
7c4f3f4a | 253 | int is_constructor = strcmp(field_name, TYPE_NAME (type)) == 0; |
bd5635a1 | 254 | |
bcccec8c | 255 | /* Need a new type prefix. */ |
bcccec8c PB |
256 | char *const_prefix = method->is_const ? "C" : ""; |
257 | char *volatile_prefix = method->is_volatile ? "V" : ""; | |
258 | char *newname = type_name_no_tag (type); | |
259 | char buf[20]; | |
260 | int len = strlen (newname); | |
261 | ||
262 | sprintf (buf, "__%s%s%d", const_prefix, volatile_prefix, len); | |
7c4f3f4a | 263 | mangled_name_len = ((is_constructor ? 0 : strlen (field_name)) |
bcccec8c PB |
264 | + strlen (buf) + len |
265 | + strlen (TYPE_FN_FIELD_PHYSNAME (f, j)) | |
266 | + 1); | |
267 | ||
7d9884b9 JG |
268 | /* Only needed for GNU-mangled names. ANSI-mangled names |
269 | work with the normal mechanisms. */ | |
bcccec8c PB |
270 | if (OPNAME_PREFIX_P (field_name)) |
271 | { | |
7d9884b9 | 272 | char *opname = cplus_mangle_opname (field_name + 3, 0); |
bcccec8c PB |
273 | if (opname == NULL) |
274 | error ("No mangling for \"%s\"", field_name); | |
275 | mangled_name_len += strlen (opname); | |
276 | mangled_name = (char *)xmalloc (mangled_name_len); | |
277 | ||
278 | strncpy (mangled_name, field_name, 3); | |
279 | mangled_name[3] = '\0'; | |
280 | strcat (mangled_name, opname); | |
281 | } | |
282 | else | |
bd5635a1 | 283 | { |
bcccec8c | 284 | mangled_name = (char *)xmalloc (mangled_name_len); |
7c4f3f4a MT |
285 | if (is_constructor) |
286 | mangled_name[0] = '\0'; | |
287 | else | |
288 | strcpy (mangled_name, field_name); | |
bd5635a1 | 289 | } |
bcccec8c PB |
290 | strcat (mangled_name, buf); |
291 | strcat (mangled_name, newname); | |
292 | strcat (mangled_name, TYPE_FN_FIELD_PHYSNAME (f, j)); | |
293 | ||
294 | return mangled_name; | |
bd5635a1 RP |
295 | } |
296 | ||
cba0d141 JG |
297 | \f |
298 | /* Find which partial symtab on contains PC. Return 0 if none. */ | |
f1d77e90 | 299 | |
cba0d141 JG |
300 | struct partial_symtab * |
301 | find_pc_psymtab (pc) | |
302 | register CORE_ADDR pc; | |
d96b54ea | 303 | { |
cba0d141 JG |
304 | register struct partial_symtab *pst; |
305 | register struct objfile *objfile; | |
d96b54ea | 306 | |
35a25840 | 307 | ALL_PSYMTABS (objfile, pst) |
bd5635a1 | 308 | { |
35a25840 | 309 | if (pc >= pst -> textlow && pc < pst -> texthigh) |
bd5635a1 | 310 | { |
35a25840 | 311 | return (pst); |
f1d77e90 | 312 | } |
bd5635a1 | 313 | } |
cba0d141 | 314 | return (NULL); |
bd5635a1 RP |
315 | } |
316 | ||
317 | /* Find which partial symbol within a psymtab contains PC. Return 0 | |
318 | if none. Check all psymtabs if PSYMTAB is 0. */ | |
319 | struct partial_symbol * | |
320 | find_pc_psymbol (psymtab, pc) | |
321 | struct partial_symtab *psymtab; | |
322 | CORE_ADDR pc; | |
323 | { | |
324 | struct partial_symbol *best, *p; | |
325 | CORE_ADDR best_pc; | |
326 | ||
327 | if (!psymtab) | |
328 | psymtab = find_pc_psymtab (pc); | |
329 | if (!psymtab) | |
330 | return 0; | |
331 | ||
332 | best_pc = psymtab->textlow - 1; | |
333 | ||
cba0d141 JG |
334 | for (p = psymtab->objfile->static_psymbols.list + psymtab->statics_offset; |
335 | (p - (psymtab->objfile->static_psymbols.list + psymtab->statics_offset) | |
bd5635a1 RP |
336 | < psymtab->n_static_syms); |
337 | p++) | |
338 | if (SYMBOL_NAMESPACE (p) == VAR_NAMESPACE | |
339 | && SYMBOL_CLASS (p) == LOC_BLOCK | |
340 | && pc >= SYMBOL_VALUE_ADDRESS (p) | |
341 | && SYMBOL_VALUE_ADDRESS (p) > best_pc) | |
342 | { | |
343 | best_pc = SYMBOL_VALUE_ADDRESS (p); | |
344 | best = p; | |
345 | } | |
346 | if (best_pc == psymtab->textlow - 1) | |
347 | return 0; | |
348 | return best; | |
349 | } | |
350 | ||
351 | \f | |
352 | /* Find the definition for a specified symbol name NAME | |
353 | in namespace NAMESPACE, visible from lexical block BLOCK. | |
354 | Returns the struct symbol pointer, or zero if no symbol is found. | |
355 | If SYMTAB is non-NULL, store the symbol table in which the | |
356 | symbol was found there, or NULL if not found. | |
357 | C++: if IS_A_FIELD_OF_THIS is nonzero on entry, check to see if | |
358 | NAME is a field of the current implied argument `this'. If so set | |
359 | *IS_A_FIELD_OF_THIS to 1, otherwise set it to zero. | |
360 | BLOCK_FOUND is set to the block in which NAME is found (in the case of | |
361 | a field of `this', value_of_this sets BLOCK_FOUND to the proper value.) */ | |
362 | ||
363 | struct symbol * | |
364 | lookup_symbol (name, block, namespace, is_a_field_of_this, symtab) | |
cba0d141 JG |
365 | const char *name; |
366 | register const struct block *block; | |
367 | const enum namespace namespace; | |
bd5635a1 RP |
368 | int *is_a_field_of_this; |
369 | struct symtab **symtab; | |
370 | { | |
371 | register struct symbol *sym; | |
372 | register struct symtab *s; | |
373 | register struct partial_symtab *ps; | |
374 | struct blockvector *bv; | |
cba0d141 JG |
375 | register struct objfile *objfile; |
376 | register struct block *b; | |
cba0d141 | 377 | register struct minimal_symbol *msymbol; |
f70be3e4 JG |
378 | char *temp; |
379 | extern char *gdb_completer_word_break_characters; | |
380 | ||
381 | /* If NAME contains any characters from gdb_completer_word_break_characters | |
382 | then it is probably from a quoted name string. So check to see if it | |
383 | has a C++ mangled equivalent, and if so, use the mangled equivalent. */ | |
384 | ||
385 | if (strpbrk (name, gdb_completer_word_break_characters) != NULL) | |
386 | { | |
387 | if ((temp = expensive_mangler (name)) != NULL) | |
388 | { | |
389 | name = temp; | |
390 | } | |
391 | } | |
bd5635a1 RP |
392 | |
393 | /* Search specified block and its superiors. */ | |
394 | ||
395 | while (block != 0) | |
396 | { | |
397 | sym = lookup_block_symbol (block, name, namespace); | |
398 | if (sym) | |
399 | { | |
400 | block_found = block; | |
401 | if (symtab != NULL) | |
402 | { | |
403 | /* Search the list of symtabs for one which contains the | |
404 | address of the start of this block. */ | |
35a25840 | 405 | ALL_SYMTABS (objfile, s) |
bd5635a1 | 406 | { |
35a25840 SG |
407 | bv = BLOCKVECTOR (s); |
408 | b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
409 | if (BLOCK_START (b) <= BLOCK_START (block) | |
410 | && BLOCK_END (b) > BLOCK_START (block)) | |
411 | goto found; | |
bd5635a1 | 412 | } |
35a25840 | 413 | found: |
bd5635a1 RP |
414 | *symtab = s; |
415 | } | |
416 | ||
cba0d141 | 417 | return (sym); |
bd5635a1 RP |
418 | } |
419 | block = BLOCK_SUPERBLOCK (block); | |
420 | } | |
421 | ||
b039ac3a JK |
422 | /* But that doesn't do any demangling for the STATIC_BLOCK. |
423 | I'm not sure whether demangling is needed in the case of | |
424 | nested function in inner blocks; if so this needs to be changed. | |
425 | ||
426 | Don't need to mess with the psymtabs; if we have a block, | |
427 | that file is read in. If we don't, then we deal later with | |
428 | all the psymtab stuff that needs checking. */ | |
429 | if (namespace == VAR_NAMESPACE && block != NULL) | |
430 | { | |
431 | struct block *b; | |
432 | /* Find the right symtab. */ | |
35a25840 | 433 | ALL_SYMTABS (objfile, s) |
b039ac3a | 434 | { |
35a25840 SG |
435 | bv = BLOCKVECTOR (s); |
436 | b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
437 | if (BLOCK_START (b) <= BLOCK_START (block) | |
438 | && BLOCK_END (b) > BLOCK_START (block)) | |
b039ac3a | 439 | { |
35a25840 SG |
440 | sym = lookup_demangled_block_symbol (b, name); |
441 | if (sym) | |
b039ac3a | 442 | { |
35a25840 SG |
443 | block_found = b; |
444 | if (symtab != NULL) | |
445 | *symtab = s; | |
446 | return sym; | |
b039ac3a JK |
447 | } |
448 | } | |
449 | } | |
450 | } | |
451 | ||
452 | ||
bd5635a1 RP |
453 | /* C++: If requested to do so by the caller, |
454 | check to see if NAME is a field of `this'. */ | |
455 | if (is_a_field_of_this) | |
456 | { | |
457 | struct value *v = value_of_this (0); | |
458 | ||
459 | *is_a_field_of_this = 0; | |
460 | if (v && check_field (v, name)) | |
461 | { | |
462 | *is_a_field_of_this = 1; | |
463 | if (symtab != NULL) | |
464 | *symtab = NULL; | |
465 | return 0; | |
466 | } | |
467 | } | |
468 | ||
469 | /* Now search all global blocks. Do the symtab's first, then | |
470 | check the psymtab's */ | |
cba0d141 | 471 | |
35a25840 | 472 | ALL_SYMTABS (objfile, s) |
bd5635a1 | 473 | { |
35a25840 SG |
474 | bv = BLOCKVECTOR (s); |
475 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
476 | sym = lookup_block_symbol (block, name, namespace); | |
477 | if (sym) | |
bd5635a1 | 478 | { |
35a25840 SG |
479 | block_found = block; |
480 | if (symtab != NULL) | |
481 | *symtab = s; | |
482 | return sym; | |
bd5635a1 RP |
483 | } |
484 | } | |
485 | ||
486 | /* Check for the possibility of the symbol being a global function | |
cba0d141 | 487 | that is stored in one of the minimal symbol tables. Eventually, all |
bd5635a1 RP |
488 | global symbols might be resolved in this way. */ |
489 | ||
490 | if (namespace == VAR_NAMESPACE) | |
491 | { | |
cba0d141 | 492 | msymbol = lookup_minimal_symbol (name, (struct objfile *) NULL); |
35a25840 | 493 | |
cba0d141 | 494 | if (msymbol == NULL) |
bd5635a1 | 495 | { |
35a25840 SG |
496 | /* Test each minimal symbol to see if the minimal symbol's name |
497 | is a C++ mangled name that matches a user visible name. */ | |
498 | ||
35a25840 SG |
499 | char *demangled; |
500 | ||
501 | ALL_MSYMBOLS (objfile, msymbol) | |
502 | { | |
f70be3e4 JG |
503 | demangled = demangle_and_match (msymbol -> name, name, 0); |
504 | if (demangled != NULL) | |
35a25840 | 505 | { |
f70be3e4 JG |
506 | free (demangled); |
507 | goto found_msym; | |
35a25840 SG |
508 | } |
509 | } | |
f70be3e4 | 510 | msymbol = NULL; /* Not found */ |
bd5635a1 | 511 | } |
35a25840 SG |
512 | |
513 | found_msym: | |
f70be3e4 | 514 | if (msymbol != NULL) |
bd5635a1 | 515 | { |
cba0d141 | 516 | s = find_pc_symtab (msymbol -> address); |
318bf84f | 517 | /* If S is NULL, there are no debug symbols for this file. |
997a978c | 518 | Skip this stuff and check for matching static symbols below. */ |
318bf84f | 519 | if (s != NULL) |
bd5635a1 RP |
520 | { |
521 | bv = BLOCKVECTOR (s); | |
3ba6a043 | 522 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); |
cba0d141 | 523 | sym = lookup_block_symbol (block, msymbol -> name, namespace); |
318bf84f | 524 | /* We kept static functions in minimal symbol table as well as |
818de002 | 525 | in static scope. We want to find them in the symbol table. */ |
818de002 PB |
526 | if (!sym) { |
527 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
318bf84f FF |
528 | sym = lookup_block_symbol (block, msymbol -> name, |
529 | namespace); | |
818de002 | 530 | } |
818de002 | 531 | |
cba0d141 | 532 | /* sym == 0 if symbol was found in the minimal symbol table |
bd5635a1 | 533 | but not in the symtab. |
cba0d141 | 534 | Return 0 to use the msymbol definition of "foo_". |
bd5635a1 RP |
535 | |
536 | This happens for Fortran "foo_" symbols, | |
537 | which are "foo" in the symtab. | |
538 | ||
539 | This can also happen if "asm" is used to make a | |
540 | regular symbol but not a debugging symbol, e.g. | |
541 | asm(".globl _main"); | |
542 | asm("_main:"); | |
543 | */ | |
544 | ||
545 | if (symtab != NULL) | |
546 | *symtab = s; | |
547 | return sym; | |
548 | } | |
549 | } | |
550 | } | |
551 | ||
35a25840 | 552 | ALL_PSYMTABS (objfile, ps) |
cba0d141 | 553 | { |
35a25840 | 554 | if (!ps->readin && lookup_partial_symbol (ps, name, 1, namespace)) |
cba0d141 | 555 | { |
35a25840 SG |
556 | s = PSYMTAB_TO_SYMTAB(ps); |
557 | bv = BLOCKVECTOR (s); | |
558 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
559 | sym = lookup_block_symbol (block, name, namespace); | |
560 | if (!sym) | |
561 | error ("Internal: global symbol `%s' found in psymtab but not in symtab", name); | |
562 | if (symtab != NULL) | |
563 | *symtab = s; | |
564 | return sym; | |
cba0d141 JG |
565 | } |
566 | } | |
bd5635a1 RP |
567 | |
568 | /* Now search all per-file blocks. | |
569 | Not strictly correct, but more useful than an error. | |
570 | Do the symtabs first, then check the psymtabs */ | |
571 | ||
35a25840 | 572 | ALL_SYMTABS (objfile, s) |
bd5635a1 | 573 | { |
35a25840 SG |
574 | bv = BLOCKVECTOR (s); |
575 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
576 | sym = lookup_block_symbol (block, name, namespace); | |
577 | if (sym) | |
bd5635a1 | 578 | { |
35a25840 SG |
579 | block_found = block; |
580 | if (symtab != NULL) | |
581 | *symtab = s; | |
582 | return sym; | |
583 | } | |
584 | } | |
585 | ||
586 | ALL_PSYMTABS (objfile, ps) | |
587 | { | |
588 | if (!ps->readin && lookup_partial_symbol (ps, name, 0, namespace)) | |
589 | { | |
590 | s = PSYMTAB_TO_SYMTAB(ps); | |
cba0d141 JG |
591 | bv = BLOCKVECTOR (s); |
592 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
593 | sym = lookup_block_symbol (block, name, namespace); | |
35a25840 SG |
594 | if (!sym) |
595 | error ("Internal: static symbol `%s' found in psymtab but not in symtab", name); | |
596 | if (symtab != NULL) | |
597 | *symtab = s; | |
598 | return sym; | |
599 | } | |
600 | } | |
601 | ||
602 | /* Now search all per-file blocks for static mangled symbols. | |
603 | Do the symtabs first, then check the psymtabs. */ | |
604 | ||
605 | if (namespace == VAR_NAMESPACE) | |
606 | { | |
607 | ALL_SYMTABS (objfile, s) | |
608 | { | |
609 | bv = BLOCKVECTOR (s); | |
610 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
611 | sym = lookup_demangled_block_symbol (block, name); | |
cba0d141 JG |
612 | if (sym) |
613 | { | |
614 | block_found = block; | |
615 | if (symtab != NULL) | |
616 | *symtab = s; | |
617 | return sym; | |
618 | } | |
bd5635a1 | 619 | } |
bd5635a1 | 620 | |
35a25840 | 621 | ALL_PSYMTABS (objfile, ps) |
cba0d141 | 622 | { |
35a25840 | 623 | if (!ps->readin && lookup_demangled_partial_symbol (ps, name)) |
cba0d141 JG |
624 | { |
625 | s = PSYMTAB_TO_SYMTAB(ps); | |
626 | bv = BLOCKVECTOR (s); | |
627 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
35a25840 | 628 | sym = lookup_demangled_block_symbol (block, name); |
cba0d141 | 629 | if (!sym) |
35a25840 | 630 | error ("Internal: mangled static symbol `%s' found in psymtab but not in symtab", name); |
cba0d141 JG |
631 | if (symtab != NULL) |
632 | *symtab = s; | |
633 | return sym; | |
634 | } | |
635 | } | |
636 | } | |
bd5635a1 RP |
637 | |
638 | if (symtab != NULL) | |
639 | *symtab = NULL; | |
640 | return 0; | |
641 | } | |
642 | ||
b039ac3a JK |
643 | /* Look for a static demangled symbol in block BLOCK. */ |
644 | ||
645 | static struct symbol * | |
646 | lookup_demangled_block_symbol (block, name) | |
cba0d141 JG |
647 | register const struct block *block; |
648 | const char *name; | |
b039ac3a | 649 | { |
f70be3e4 | 650 | register int bot, top; |
b039ac3a | 651 | register struct symbol *sym; |
f70be3e4 | 652 | char *demangled; |
b039ac3a JK |
653 | |
654 | bot = 0; | |
655 | top = BLOCK_NSYMS (block); | |
b039ac3a JK |
656 | |
657 | while (bot < top) | |
658 | { | |
659 | sym = BLOCK_SYM (block, bot); | |
f70be3e4 | 660 | if (SYMBOL_NAMESPACE (sym) == VAR_NAMESPACE) |
b039ac3a | 661 | { |
f70be3e4 | 662 | demangled = demangle_and_match (SYMBOL_NAME (sym), name, 0); |
b039ac3a JK |
663 | if (demangled != NULL) |
664 | { | |
b039ac3a | 665 | free (demangled); |
f70be3e4 | 666 | return (sym); |
b039ac3a JK |
667 | } |
668 | } | |
669 | bot++; | |
670 | } | |
671 | ||
f70be3e4 | 672 | return (NULL); |
b039ac3a JK |
673 | } |
674 | ||
675 | /* Look, in partial_symtab PST, for static mangled symbol NAME. */ | |
676 | ||
677 | static struct partial_symbol * | |
678 | lookup_demangled_partial_symbol (pst, name) | |
cba0d141 JG |
679 | const struct partial_symtab *pst; |
680 | const char *name; | |
b039ac3a JK |
681 | { |
682 | struct partial_symbol *start, *psym; | |
683 | int length = pst->n_static_syms; | |
f70be3e4 | 684 | char *demangled; |
b039ac3a JK |
685 | |
686 | if (!length) | |
687 | return (struct partial_symbol *) 0; | |
688 | ||
cba0d141 | 689 | start = pst->objfile->static_psymbols.list + pst->statics_offset; |
b039ac3a JK |
690 | for (psym = start; psym < start + length; psym++) |
691 | { | |
f70be3e4 | 692 | if (SYMBOL_NAMESPACE (psym) == VAR_NAMESPACE) |
b039ac3a | 693 | { |
f70be3e4 | 694 | demangled = demangle_and_match (SYMBOL_NAME (psym), name, 0); |
b039ac3a JK |
695 | if (demangled != NULL) |
696 | { | |
b039ac3a | 697 | free (demangled); |
f70be3e4 | 698 | return (psym); |
b039ac3a JK |
699 | } |
700 | } | |
701 | } | |
702 | ||
f70be3e4 | 703 | return (NULL); |
b039ac3a JK |
704 | } |
705 | ||
bd5635a1 RP |
706 | /* Look, in partial_symtab PST, for symbol NAME. Check the global |
707 | symbols if GLOBAL, the static symbols if not */ | |
708 | ||
709 | static struct partial_symbol * | |
710 | lookup_partial_symbol (pst, name, global, namespace) | |
711 | struct partial_symtab *pst; | |
cba0d141 | 712 | const char *name; |
bd5635a1 RP |
713 | int global; |
714 | enum namespace namespace; | |
715 | { | |
716 | struct partial_symbol *start, *psym; | |
717 | int length = (global ? pst->n_global_syms : pst->n_static_syms); | |
718 | ||
719 | if (!length) | |
720 | return (struct partial_symbol *) 0; | |
721 | ||
722 | start = (global ? | |
cba0d141 JG |
723 | pst->objfile->global_psymbols.list + pst->globals_offset : |
724 | pst->objfile->static_psymbols.list + pst->statics_offset ); | |
bd5635a1 RP |
725 | |
726 | if (global) /* This means we can use a binary */ | |
727 | /* search. */ | |
728 | { | |
729 | struct partial_symbol *top, *bottom, *center; | |
730 | ||
731 | /* Binary search. This search is guaranteed to end with center | |
732 | pointing at the earliest partial symbol with the correct | |
733 | name. At that point *all* partial symbols with that name | |
734 | will be checked against the correct namespace. */ | |
735 | bottom = start; | |
736 | top = start + length - 1; | |
737 | while (top > bottom) | |
738 | { | |
739 | center = bottom + (top - bottom) / 2; | |
740 | ||
741 | assert (center < top); | |
742 | ||
743 | if (strcmp (SYMBOL_NAME (center), name) >= 0) | |
744 | top = center; | |
745 | else | |
746 | bottom = center + 1; | |
747 | } | |
748 | assert (top == bottom); | |
749 | ||
750 | while (!strcmp (SYMBOL_NAME (top), name)) | |
751 | { | |
752 | if (SYMBOL_NAMESPACE (top) == namespace) | |
753 | return top; | |
754 | top ++; | |
755 | } | |
756 | } | |
757 | else | |
758 | { | |
759 | /* Can't use a binary search */ | |
760 | for (psym = start; psym < start + length; psym++) | |
761 | if (namespace == SYMBOL_NAMESPACE (psym) | |
762 | && !strcmp (name, SYMBOL_NAME (psym))) | |
763 | return psym; | |
764 | } | |
765 | ||
766 | return (struct partial_symbol *) 0; | |
767 | } | |
768 | ||
0e2a896c PB |
769 | /* Find the psymtab containing main(). */ |
770 | ||
771 | struct partial_symtab * | |
772 | find_main_psymtab () | |
773 | { | |
774 | register struct partial_symtab *pst; | |
cba0d141 JG |
775 | register struct objfile *objfile; |
776 | ||
35a25840 | 777 | ALL_PSYMTABS (objfile, pst) |
cba0d141 | 778 | { |
35a25840 | 779 | if (lookup_partial_symbol (pst, "main", 1, VAR_NAMESPACE)) |
cba0d141 | 780 | { |
35a25840 | 781 | return (pst); |
cba0d141 JG |
782 | } |
783 | } | |
784 | return (NULL); | |
0e2a896c PB |
785 | } |
786 | ||
bd5635a1 RP |
787 | /* Look for a symbol in block BLOCK. */ |
788 | ||
789 | struct symbol * | |
790 | lookup_block_symbol (block, name, namespace) | |
cba0d141 JG |
791 | register const struct block *block; |
792 | const char *name; | |
793 | const enum namespace namespace; | |
bd5635a1 RP |
794 | { |
795 | register int bot, top, inc; | |
796 | register struct symbol *sym, *parameter_sym; | |
797 | ||
798 | top = BLOCK_NSYMS (block); | |
799 | bot = 0; | |
800 | ||
801 | /* If the blocks's symbols were sorted, start with a binary search. */ | |
802 | ||
803 | if (BLOCK_SHOULD_SORT (block)) | |
804 | { | |
805 | /* First, advance BOT to not far before | |
806 | the first symbol whose name is NAME. */ | |
807 | ||
808 | while (1) | |
809 | { | |
810 | inc = (top - bot + 1); | |
811 | /* No need to keep binary searching for the last few bits worth. */ | |
812 | if (inc < 4) | |
813 | break; | |
814 | inc = (inc >> 1) + bot; | |
815 | sym = BLOCK_SYM (block, inc); | |
816 | if (SYMBOL_NAME (sym)[0] < name[0]) | |
817 | bot = inc; | |
818 | else if (SYMBOL_NAME (sym)[0] > name[0]) | |
819 | top = inc; | |
820 | else if (strcmp (SYMBOL_NAME (sym), name) < 0) | |
821 | bot = inc; | |
822 | else | |
823 | top = inc; | |
824 | } | |
825 | ||
826 | /* Now scan forward until we run out of symbols, | |
827 | find one whose name is greater than NAME, | |
828 | or find one we want. | |
829 | If there is more than one symbol with the right name and namespace, | |
830 | we return the first one. dbxread.c is careful to make sure | |
831 | that if one is a register then it comes first. */ | |
832 | ||
833 | top = BLOCK_NSYMS (block); | |
834 | while (bot < top) | |
835 | { | |
836 | sym = BLOCK_SYM (block, bot); | |
837 | inc = SYMBOL_NAME (sym)[0] - name[0]; | |
838 | if (inc == 0) | |
839 | inc = strcmp (SYMBOL_NAME (sym), name); | |
840 | if (inc == 0 && SYMBOL_NAMESPACE (sym) == namespace) | |
841 | return sym; | |
842 | if (inc > 0) | |
843 | return 0; | |
844 | bot++; | |
845 | } | |
846 | return 0; | |
847 | } | |
848 | ||
849 | /* Here if block isn't sorted. | |
850 | This loop is equivalent to the loop above, | |
851 | but hacked greatly for speed. | |
852 | ||
853 | Note that parameter symbols do not always show up last in the | |
854 | list; this loop makes sure to take anything else other than | |
855 | parameter symbols first; it only uses parameter symbols as a | |
856 | last resort. Note that this only takes up extra computation | |
857 | time on a match. */ | |
858 | ||
859 | parameter_sym = (struct symbol *) 0; | |
860 | top = BLOCK_NSYMS (block); | |
861 | inc = name[0]; | |
862 | while (bot < top) | |
863 | { | |
864 | sym = BLOCK_SYM (block, bot); | |
865 | if (SYMBOL_NAME (sym)[0] == inc | |
866 | && !strcmp (SYMBOL_NAME (sym), name) | |
867 | && SYMBOL_NAMESPACE (sym) == namespace) | |
868 | { | |
869 | if (SYMBOL_CLASS (sym) == LOC_ARG | |
870 | || SYMBOL_CLASS (sym) == LOC_LOCAL_ARG | |
871 | || SYMBOL_CLASS (sym) == LOC_REF_ARG | |
872 | || SYMBOL_CLASS (sym) == LOC_REGPARM) | |
873 | parameter_sym = sym; | |
874 | else | |
875 | return sym; | |
876 | } | |
877 | bot++; | |
878 | } | |
879 | return parameter_sym; /* Will be 0 if not found. */ | |
880 | } | |
881 | \f | |
882 | /* Return the symbol for the function which contains a specified | |
883 | lexical block, described by a struct block BL. */ | |
884 | ||
885 | struct symbol * | |
886 | block_function (bl) | |
887 | struct block *bl; | |
888 | { | |
889 | while (BLOCK_FUNCTION (bl) == 0 && BLOCK_SUPERBLOCK (bl) != 0) | |
890 | bl = BLOCK_SUPERBLOCK (bl); | |
891 | ||
892 | return BLOCK_FUNCTION (bl); | |
893 | } | |
894 | ||
895 | /* Subroutine of find_pc_line */ | |
896 | ||
897 | struct symtab * | |
898 | find_pc_symtab (pc) | |
899 | register CORE_ADDR pc; | |
900 | { | |
901 | register struct block *b; | |
902 | struct blockvector *bv; | |
cba0d141 | 903 | register struct symtab *s = 0; |
bd5635a1 | 904 | register struct partial_symtab *ps; |
cba0d141 | 905 | register struct objfile *objfile; |
bd5635a1 RP |
906 | |
907 | /* Search all symtabs for one whose file contains our pc */ | |
908 | ||
35a25840 | 909 | ALL_SYMTABS (objfile, s) |
bd5635a1 | 910 | { |
35a25840 SG |
911 | bv = BLOCKVECTOR (s); |
912 | b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
913 | if (BLOCK_START (b) <= pc | |
914 | && BLOCK_END (b) > pc) | |
915 | goto found; | |
bd5635a1 RP |
916 | } |
917 | ||
918 | if (!s) | |
919 | { | |
920 | ps = find_pc_psymtab (pc); | |
921 | if (ps && ps->readin) | |
cba0d141 JG |
922 | { |
923 | printf_filtered ("(Internal error: pc 0x%x in read in psymtab, but not in symtab.)\n", pc); | |
924 | } | |
bd5635a1 | 925 | if (ps) |
cba0d141 JG |
926 | { |
927 | s = PSYMTAB_TO_SYMTAB (ps); | |
928 | } | |
bd5635a1 RP |
929 | } |
930 | ||
35a25840 | 931 | found: |
cba0d141 | 932 | return (s); |
bd5635a1 RP |
933 | } |
934 | ||
935 | /* Find the source file and line number for a given PC value. | |
936 | Return a structure containing a symtab pointer, a line number, | |
937 | and a pc range for the entire source line. | |
938 | The value's .pc field is NOT the specified pc. | |
939 | NOTCURRENT nonzero means, if specified pc is on a line boundary, | |
940 | use the line that ends there. Otherwise, in that case, the line | |
941 | that begins there is used. */ | |
942 | ||
943 | struct symtab_and_line | |
944 | find_pc_line (pc, notcurrent) | |
945 | CORE_ADDR pc; | |
946 | int notcurrent; | |
947 | { | |
948 | struct symtab *s; | |
949 | register struct linetable *l; | |
950 | register int len; | |
951 | register int i; | |
952 | register struct linetable_entry *item; | |
953 | struct symtab_and_line val; | |
954 | struct blockvector *bv; | |
955 | ||
956 | /* Info on best line seen so far, and where it starts, and its file. */ | |
957 | ||
958 | int best_line = 0; | |
959 | CORE_ADDR best_pc = 0; | |
960 | CORE_ADDR best_end = 0; | |
961 | struct symtab *best_symtab = 0; | |
962 | ||
963 | /* Store here the first line number | |
964 | of a file which contains the line at the smallest pc after PC. | |
965 | If we don't find a line whose range contains PC, | |
966 | we will use a line one less than this, | |
967 | with a range from the start of that file to the first line's pc. */ | |
968 | int alt_line = 0; | |
969 | CORE_ADDR alt_pc = 0; | |
970 | struct symtab *alt_symtab = 0; | |
971 | ||
972 | /* Info on best line seen in this file. */ | |
973 | ||
974 | int prev_line; | |
975 | CORE_ADDR prev_pc; | |
976 | ||
977 | /* Info on first line of this file. */ | |
978 | ||
979 | int first_line; | |
980 | CORE_ADDR first_pc; | |
981 | ||
982 | /* If this pc is not from the current frame, | |
983 | it is the address of the end of a call instruction. | |
984 | Quite likely that is the start of the following statement. | |
985 | But what we want is the statement containing the instruction. | |
986 | Fudge the pc to make sure we get that. */ | |
987 | ||
988 | if (notcurrent) pc -= 1; | |
989 | ||
990 | s = find_pc_symtab (pc); | |
991 | if (s == 0) | |
992 | { | |
993 | val.symtab = 0; | |
994 | val.line = 0; | |
995 | val.pc = pc; | |
996 | val.end = 0; | |
997 | return val; | |
998 | } | |
999 | ||
1000 | bv = BLOCKVECTOR (s); | |
1001 | ||
1002 | /* Look at all the symtabs that share this blockvector. | |
1003 | They all have the same apriori range, that we found was right; | |
1004 | but they have different line tables. */ | |
1005 | ||
1006 | for (; s && BLOCKVECTOR (s) == bv; s = s->next) | |
1007 | { | |
1008 | /* Find the best line in this symtab. */ | |
1009 | l = LINETABLE (s); | |
4137c5fc JG |
1010 | if (!l) |
1011 | continue; | |
bd5635a1 RP |
1012 | len = l->nitems; |
1013 | prev_line = -1; | |
1014 | first_line = -1; | |
1015 | for (i = 0; i < len; i++) | |
1016 | { | |
1017 | item = &(l->item[i]); | |
1018 | ||
1019 | if (first_line < 0) | |
1020 | { | |
1021 | first_line = item->line; | |
1022 | first_pc = item->pc; | |
1023 | } | |
1024 | /* Return the last line that did not start after PC. */ | |
1025 | if (pc >= item->pc) | |
1026 | { | |
1027 | prev_line = item->line; | |
1028 | prev_pc = item->pc; | |
1029 | } | |
1030 | else | |
1031 | break; | |
1032 | } | |
1033 | ||
1034 | /* Is this file's best line closer than the best in the other files? | |
1035 | If so, record this file, and its best line, as best so far. */ | |
1036 | if (prev_line >= 0 && prev_pc > best_pc) | |
1037 | { | |
1038 | best_pc = prev_pc; | |
1039 | best_line = prev_line; | |
1040 | best_symtab = s; | |
cba0d141 JG |
1041 | /* If another line is in the linetable, and its PC is closer |
1042 | than the best_end we currently have, take it as best_end. */ | |
1043 | if (i < len && (best_end == 0 || best_end > item->pc)) | |
bd5635a1 | 1044 | best_end = item->pc; |
bd5635a1 RP |
1045 | } |
1046 | /* Is this file's first line closer than the first lines of other files? | |
1047 | If so, record this file, and its first line, as best alternate. */ | |
1048 | if (first_line >= 0 && first_pc > pc | |
1049 | && (alt_pc == 0 || first_pc < alt_pc)) | |
1050 | { | |
1051 | alt_pc = first_pc; | |
1052 | alt_line = first_line; | |
1053 | alt_symtab = s; | |
1054 | } | |
1055 | } | |
1056 | if (best_symtab == 0) | |
1057 | { | |
1058 | val.symtab = alt_symtab; | |
1059 | val.line = alt_line - 1; | |
3ba6a043 | 1060 | val.pc = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); |
bd5635a1 RP |
1061 | val.end = alt_pc; |
1062 | } | |
1063 | else | |
1064 | { | |
1065 | val.symtab = best_symtab; | |
1066 | val.line = best_line; | |
1067 | val.pc = best_pc; | |
cba0d141 JG |
1068 | if (best_end && (alt_pc == 0 || best_end < alt_pc)) |
1069 | val.end = best_end; | |
1070 | else if (alt_pc) | |
1071 | val.end = alt_pc; | |
1072 | else | |
1073 | val.end = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
bd5635a1 RP |
1074 | } |
1075 | return val; | |
1076 | } | |
1077 | \f | |
1078 | /* Find the PC value for a given source file and line number. | |
1079 | Returns zero for invalid line number. | |
1080 | The source file is specified with a struct symtab. */ | |
1081 | ||
1082 | CORE_ADDR | |
1083 | find_line_pc (symtab, line) | |
1084 | struct symtab *symtab; | |
1085 | int line; | |
1086 | { | |
1087 | register struct linetable *l; | |
1088 | register int ind; | |
1089 | int dummy; | |
1090 | ||
1091 | if (symtab == 0) | |
1092 | return 0; | |
1093 | l = LINETABLE (symtab); | |
1094 | ind = find_line_common(l, line, &dummy); | |
b203fc18 | 1095 | return (ind >= 0) ? l->item[ind].pc : 0; |
bd5635a1 RP |
1096 | } |
1097 | ||
1098 | /* Find the range of pc values in a line. | |
1099 | Store the starting pc of the line into *STARTPTR | |
1100 | and the ending pc (start of next line) into *ENDPTR. | |
1101 | Returns 1 to indicate success. | |
1102 | Returns 0 if could not find the specified line. */ | |
1103 | ||
1104 | int | |
1105 | find_line_pc_range (symtab, thisline, startptr, endptr) | |
1106 | struct symtab *symtab; | |
1107 | int thisline; | |
1108 | CORE_ADDR *startptr, *endptr; | |
1109 | { | |
1110 | register struct linetable *l; | |
1111 | register int ind; | |
1112 | int exact_match; /* did we get an exact linenumber match */ | |
1113 | ||
1114 | if (symtab == 0) | |
1115 | return 0; | |
1116 | ||
1117 | l = LINETABLE (symtab); | |
1118 | ind = find_line_common (l, thisline, &exact_match); | |
b203fc18 | 1119 | if (ind >= 0) |
bd5635a1 RP |
1120 | { |
1121 | *startptr = l->item[ind].pc; | |
1122 | /* If we have not seen an entry for the specified line, | |
1123 | assume that means the specified line has zero bytes. */ | |
1124 | if (!exact_match || ind == l->nitems-1) | |
1125 | *endptr = *startptr; | |
1126 | else | |
1127 | /* Perhaps the following entry is for the following line. | |
1128 | It's worth a try. */ | |
1129 | if (ind+1 < l->nitems | |
1130 | && l->item[ind+1].line == thisline + 1) | |
1131 | *endptr = l->item[ind+1].pc; | |
1132 | else | |
1133 | *endptr = find_line_pc (symtab, thisline+1); | |
1134 | return 1; | |
1135 | } | |
1136 | ||
1137 | return 0; | |
1138 | } | |
1139 | ||
1140 | /* Given a line table and a line number, return the index into the line | |
1141 | table for the pc of the nearest line whose number is >= the specified one. | |
b203fc18 | 1142 | Return -1 if none is found. The value is >= 0 if it is an index. |
bd5635a1 RP |
1143 | |
1144 | Set *EXACT_MATCH nonzero if the value returned is an exact match. */ | |
1145 | ||
1146 | static int | |
1147 | find_line_common (l, lineno, exact_match) | |
1148 | register struct linetable *l; | |
1149 | register int lineno; | |
1150 | int *exact_match; | |
1151 | { | |
1152 | register int i; | |
1153 | register int len; | |
1154 | ||
1155 | /* BEST is the smallest linenumber > LINENO so far seen, | |
1156 | or 0 if none has been seen so far. | |
1157 | BEST_INDEX identifies the item for it. */ | |
1158 | ||
b203fc18 | 1159 | int best_index = -1; |
bd5635a1 RP |
1160 | int best = 0; |
1161 | ||
1162 | if (lineno <= 0) | |
b203fc18 | 1163 | return -1; |
4137c5fc JG |
1164 | if (l == 0) |
1165 | return -1; | |
bd5635a1 RP |
1166 | |
1167 | len = l->nitems; | |
1168 | for (i = 0; i < len; i++) | |
1169 | { | |
1170 | register struct linetable_entry *item = &(l->item[i]); | |
1171 | ||
1172 | if (item->line == lineno) | |
1173 | { | |
1174 | *exact_match = 1; | |
1175 | return i; | |
1176 | } | |
1177 | ||
1178 | if (item->line > lineno && (best == 0 || item->line < best)) | |
1179 | { | |
1180 | best = item->line; | |
1181 | best_index = i; | |
1182 | } | |
1183 | } | |
1184 | ||
1185 | /* If we got here, we didn't get an exact match. */ | |
1186 | ||
1187 | *exact_match = 0; | |
1188 | return best_index; | |
1189 | } | |
1190 | ||
1191 | int | |
1192 | find_pc_line_pc_range (pc, startptr, endptr) | |
1193 | CORE_ADDR pc; | |
1194 | CORE_ADDR *startptr, *endptr; | |
1195 | { | |
1196 | struct symtab_and_line sal; | |
1197 | sal = find_pc_line (pc, 0); | |
1198 | *startptr = sal.pc; | |
1199 | *endptr = sal.end; | |
1200 | return sal.symtab != 0; | |
1201 | } | |
1202 | \f | |
d96b54ea JK |
1203 | /* If P is of the form "operator[ \t]+..." where `...' is |
1204 | some legitimate operator text, return a pointer to the | |
1205 | beginning of the substring of the operator text. | |
1206 | Otherwise, return "". */ | |
1207 | static char * | |
1208 | operator_chars (p, end) | |
1209 | char *p; | |
1210 | char **end; | |
1211 | { | |
1212 | *end = ""; | |
1213 | if (strncmp (p, "operator", 8)) | |
1214 | return *end; | |
1215 | p += 8; | |
1216 | ||
1217 | /* Don't get faked out by `operator' being part of a longer | |
1218 | identifier. */ | |
2cd99985 | 1219 | if (isalpha(*p) || *p == '_' || *p == '$' || *p == '\0') |
d96b54ea JK |
1220 | return *end; |
1221 | ||
1222 | /* Allow some whitespace between `operator' and the operator symbol. */ | |
1223 | while (*p == ' ' || *p == '\t') | |
1224 | p++; | |
1225 | ||
2cd99985 PB |
1226 | /* Recognize 'operator TYPENAME'. */ |
1227 | ||
1228 | if (isalpha(*p) || *p == '_' || *p == '$') | |
1229 | { | |
1230 | register char *q = p+1; | |
1231 | while (isalnum(*q) || *q == '_' || *q == '$') | |
1232 | q++; | |
1233 | *end = q; | |
1234 | return p; | |
1235 | } | |
1236 | ||
d96b54ea JK |
1237 | switch (*p) |
1238 | { | |
1239 | case '!': | |
1240 | case '=': | |
1241 | case '*': | |
1242 | case '/': | |
1243 | case '%': | |
1244 | case '^': | |
1245 | if (p[1] == '=') | |
1246 | *end = p+2; | |
1247 | else | |
1248 | *end = p+1; | |
1249 | return p; | |
1250 | case '<': | |
1251 | case '>': | |
1252 | case '+': | |
1253 | case '-': | |
1254 | case '&': | |
1255 | case '|': | |
1256 | if (p[1] == '=' || p[1] == p[0]) | |
1257 | *end = p+2; | |
1258 | else | |
1259 | *end = p+1; | |
1260 | return p; | |
1261 | case '~': | |
1262 | case ',': | |
1263 | *end = p+1; | |
1264 | return p; | |
1265 | case '(': | |
1266 | if (p[1] != ')') | |
1267 | error ("`operator ()' must be specified without whitespace in `()'"); | |
1268 | *end = p+2; | |
1269 | return p; | |
1270 | case '?': | |
1271 | if (p[1] != ':') | |
1272 | error ("`operator ?:' must be specified without whitespace in `?:'"); | |
1273 | *end = p+2; | |
1274 | return p; | |
1275 | case '[': | |
1276 | if (p[1] != ']') | |
1277 | error ("`operator []' must be specified without whitespace in `[]'"); | |
1278 | *end = p+2; | |
1279 | return p; | |
1280 | default: | |
1281 | error ("`operator %s' not supported", p); | |
1282 | break; | |
1283 | } | |
1284 | *end = ""; | |
1285 | return *end; | |
1286 | } | |
1287 | ||
bd5635a1 RP |
1288 | /* Recursive helper function for decode_line_1. |
1289 | * Look for methods named NAME in type T. | |
1290 | * Return number of matches. | |
1291 | * Put matches in PHYSNAMES and SYM_ARR (which better be big enough!). | |
1292 | * These allocations seem to define "big enough": | |
1293 | * sym_arr = (struct symbol **) alloca(TYPE_NFN_FIELDS_TOTAL (t) * sizeof(struct symbol*)); | |
1294 | * physnames = (char **) alloca (TYPE_NFN_FIELDS_TOTAL (t) * sizeof(char*)); | |
1295 | */ | |
1296 | ||
2cd99985 | 1297 | int |
7e258d18 | 1298 | find_methods (t, name, physnames, sym_arr) |
bd5635a1 RP |
1299 | struct type *t; |
1300 | char *name; | |
1301 | char **physnames; | |
1302 | struct symbol **sym_arr; | |
1303 | { | |
1304 | int i1 = 0; | |
1305 | int ibase; | |
1306 | struct symbol *sym_class; | |
1307 | char *class_name = type_name_no_tag (t); | |
1308 | /* Ignore this class if it doesn't have a name. | |
1309 | This prevents core dumps, but is just a workaround | |
1310 | because we might not find the function in | |
1311 | certain cases, such as | |
1312 | struct D {virtual int f();} | |
1313 | struct C : D {virtual int g();} | |
1314 | (in this case g++ 1.35.1- does not put out a name | |
1315 | for D as such, it defines type 19 (for example) in | |
1316 | the same stab as C, and then does a | |
1317 | .stabs "D:T19" and a .stabs "D:t19". | |
1318 | Thus | |
1319 | "break C::f" should not be looking for field f in | |
1320 | the class named D, | |
1321 | but just for the field f in the baseclasses of C | |
1322 | (no matter what their names). | |
1323 | ||
1324 | However, I don't know how to replace the code below | |
1325 | that depends on knowing the name of D. */ | |
1326 | if (class_name | |
1327 | && (sym_class = lookup_symbol (class_name, | |
1328 | (struct block *)NULL, | |
1329 | STRUCT_NAMESPACE, | |
1330 | (int *)NULL, | |
1331 | (struct symtab **)NULL))) | |
1332 | { | |
1333 | int method_counter; | |
1334 | t = SYMBOL_TYPE (sym_class); | |
1335 | for (method_counter = TYPE_NFN_FIELDS (t) - 1; | |
1336 | method_counter >= 0; | |
1337 | --method_counter) | |
1338 | { | |
1339 | int field_counter; | |
1340 | struct fn_field *f = TYPE_FN_FIELDLIST1 (t, method_counter); | |
1341 | ||
1342 | char *method_name = TYPE_FN_FIELDLIST_NAME (t, method_counter); | |
1343 | if (!strcmp (name, method_name)) | |
1344 | /* Find all the fields with that name. */ | |
1345 | for (field_counter = TYPE_FN_FIELDLIST_LENGTH (t, method_counter) - 1; | |
1346 | field_counter >= 0; | |
1347 | --field_counter) | |
1348 | { | |
1349 | char *phys_name; | |
7e258d18 | 1350 | if (TYPE_FN_FIELD_STUB (f, field_counter)) |
bd5635a1 RP |
1351 | check_stub_method (t, method_counter, field_counter); |
1352 | phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter); | |
1353 | physnames[i1] = (char*) alloca (strlen (phys_name) + 1); | |
1354 | strcpy (physnames[i1], phys_name); | |
1355 | sym_arr[i1] = lookup_symbol (phys_name, | |
1356 | SYMBOL_BLOCK_VALUE (sym_class), | |
1357 | VAR_NAMESPACE, | |
1358 | (int *) NULL, | |
1359 | (struct symtab **) NULL); | |
1360 | if (sym_arr[i1]) i1++; | |
2cd99985 PB |
1361 | else |
1362 | { | |
1363 | fputs_filtered("(Cannot find method ", stdout); | |
f70be3e4 | 1364 | fputs_demangled(phys_name, stdout, DMGL_PARAMS); |
2cd99985 PB |
1365 | fputs_filtered(" - possibly inlined.)\n", stdout); |
1366 | } | |
bd5635a1 RP |
1367 | } |
1368 | } | |
1369 | } | |
1370 | /* Only search baseclasses if there is no match yet, | |
1371 | * since names in derived classes override those in baseclasses. | |
1372 | */ | |
1373 | if (i1) | |
1374 | return i1; | |
1375 | for (ibase = 0; ibase < TYPE_N_BASECLASSES (t); ibase++) | |
1376 | i1 += find_methods(TYPE_BASECLASS(t, ibase), name, | |
1377 | physnames + i1, sym_arr + i1); | |
1378 | return i1; | |
1379 | } | |
1380 | ||
1381 | /* Parse a string that specifies a line number. | |
1382 | Pass the address of a char * variable; that variable will be | |
1383 | advanced over the characters actually parsed. | |
1384 | ||
1385 | The string can be: | |
1386 | ||
1387 | LINENUM -- that line number in current file. PC returned is 0. | |
1388 | FILE:LINENUM -- that line in that file. PC returned is 0. | |
1389 | FUNCTION -- line number of openbrace of that function. | |
1390 | PC returned is the start of the function. | |
1391 | VARIABLE -- line number of definition of that variable. | |
1392 | PC returned is 0. | |
1393 | FILE:FUNCTION -- likewise, but prefer functions in that file. | |
1394 | *EXPR -- line in which address EXPR appears. | |
1395 | ||
cba0d141 | 1396 | FUNCTION may be an undebuggable function found in minimal symbol table. |
bd5635a1 RP |
1397 | |
1398 | If the argument FUNFIRSTLINE is nonzero, we want the first line | |
1399 | of real code inside a function when a function is specified. | |
1400 | ||
1401 | DEFAULT_SYMTAB specifies the file to use if none is specified. | |
1402 | It defaults to current_source_symtab. | |
1403 | DEFAULT_LINE specifies the line number to use for relative | |
1404 | line numbers (that start with signs). Defaults to current_source_line. | |
1405 | ||
1406 | Note that it is possible to return zero for the symtab | |
1407 | if no file is validly specified. Callers must check that. | |
1408 | Also, the line number returned may be invalid. */ | |
1409 | ||
1410 | struct symtabs_and_lines | |
1411 | decode_line_1 (argptr, funfirstline, default_symtab, default_line) | |
1412 | char **argptr; | |
1413 | int funfirstline; | |
1414 | struct symtab *default_symtab; | |
1415 | int default_line; | |
1416 | { | |
bd5635a1 RP |
1417 | struct symtabs_and_lines values; |
1418 | struct symtab_and_line val; | |
1419 | register char *p, *p1; | |
d96b54ea | 1420 | char *q, *q1; |
bd5635a1 RP |
1421 | register struct symtab *s; |
1422 | ||
1423 | register struct symbol *sym; | |
1424 | /* The symtab that SYM was found in. */ | |
1425 | struct symtab *sym_symtab; | |
1426 | ||
1427 | register CORE_ADDR pc; | |
cba0d141 | 1428 | register struct minimal_symbol *msymbol; |
bd5635a1 RP |
1429 | char *copy; |
1430 | struct symbol *sym_class; | |
1431 | int i1; | |
1432 | struct symbol **sym_arr; | |
1433 | struct type *t; | |
1434 | char **physnames; | |
f70be3e4 JG |
1435 | char *saved_arg = *argptr; |
1436 | extern char *gdb_completer_quote_characters; | |
bd5635a1 RP |
1437 | |
1438 | /* Defaults have defaults. */ | |
1439 | ||
1440 | if (default_symtab == 0) | |
1441 | { | |
1442 | default_symtab = current_source_symtab; | |
1443 | default_line = current_source_line; | |
1444 | } | |
1445 | ||
bd5635a1 | 1446 | |
f70be3e4 JG |
1447 | /* Check to see if *ARGPTR points to a string that has been quoted with |
1448 | gdb_completer_quote_characters. If so, P will be left pointing at | |
1449 | someplace other than *ARGPTR */ | |
1450 | ||
1451 | if (((p = skip_quoted (*argptr)) != *argptr) && | |
1452 | ((*(p - 1) != **argptr) || | |
1453 | (strchr (gdb_completer_quote_characters, **argptr) == NULL))) | |
bd5635a1 | 1454 | { |
f70be3e4 JG |
1455 | /* Not quoted symbol string specification, reset P */ |
1456 | p = *argptr; | |
1457 | } | |
1458 | ||
1459 | /* See if arg is *PC or '<some symbol specifier string>' */ | |
1460 | ||
1461 | if ((**argptr == '*') || (p != *argptr)) | |
1462 | { | |
1463 | if (**argptr == '*') | |
1464 | { | |
1465 | (*argptr)++; | |
1466 | } | |
bd5635a1 RP |
1467 | pc = parse_and_eval_address_1 (argptr); |
1468 | values.sals = (struct symtab_and_line *) | |
1469 | xmalloc (sizeof (struct symtab_and_line)); | |
1470 | values.nelts = 1; | |
1471 | values.sals[0] = find_pc_line (pc, 0); | |
1472 | values.sals[0].pc = pc; | |
1473 | return values; | |
1474 | } | |
1475 | ||
1476 | /* Maybe arg is FILE : LINENUM or FILE : FUNCTION */ | |
1477 | ||
1478 | s = 0; | |
1479 | ||
1480 | for (p = *argptr; *p; p++) | |
1481 | { | |
1482 | if (p[0] == ':' || p[0] == ' ' || p[0] == '\t') | |
1483 | break; | |
1484 | } | |
1485 | while (p[0] == ' ' || p[0] == '\t') p++; | |
1486 | ||
1487 | if (p[0] == ':') | |
1488 | { | |
1489 | ||
1490 | /* C++ */ | |
1491 | if (p[1] ==':') | |
1492 | { | |
1493 | /* Extract the class name. */ | |
1494 | p1 = p; | |
1495 | while (p != *argptr && p[-1] == ' ') --p; | |
1496 | copy = (char *) alloca (p - *argptr + 1); | |
1497 | bcopy (*argptr, copy, p - *argptr); | |
1498 | copy[p - *argptr] = 0; | |
1499 | ||
1500 | /* Discard the class name from the arg. */ | |
1501 | p = p1 + 2; | |
1502 | while (*p == ' ' || *p == '\t') p++; | |
1503 | *argptr = p; | |
1504 | ||
1505 | sym_class = lookup_symbol (copy, 0, STRUCT_NAMESPACE, 0, | |
1506 | (struct symtab **)NULL); | |
1507 | ||
1508 | if (sym_class && | |
f1d77e90 | 1509 | ( TYPE_CODE (SYMBOL_TYPE (sym_class)) == TYPE_CODE_STRUCT |
bd5635a1 RP |
1510 | || TYPE_CODE (SYMBOL_TYPE (sym_class)) == TYPE_CODE_UNION)) |
1511 | { | |
1512 | /* Arg token is not digits => try it as a function name | |
1513 | Find the next token (everything up to end or next whitespace). */ | |
1514 | p = *argptr; | |
1515 | while (*p && *p != ' ' && *p != '\t' && *p != ',' && *p !=':') p++; | |
d96b54ea | 1516 | q = operator_chars (*argptr, &q1); |
aec4cb91 | 1517 | |
d96b54ea JK |
1518 | if (q1 - q) |
1519 | { | |
2cd99985 PB |
1520 | char *opname; |
1521 | char *tmp = alloca (q1 - q + 1); | |
1522 | memcpy (tmp, q, q1 - q); | |
1523 | tmp[q1 - q] = '\0'; | |
1524 | opname = cplus_mangle_opname (tmp, 1); | |
1525 | if (opname == NULL) | |
f70be3e4 JG |
1526 | { |
1527 | warning ("no mangling for \"%s\"", tmp); | |
1528 | cplusplus_hint (saved_arg); | |
1529 | return_to_top_level (); | |
1530 | } | |
2cd99985 PB |
1531 | copy = (char*) alloca (3 + strlen(opname)); |
1532 | sprintf (copy, "__%s", opname); | |
d96b54ea JK |
1533 | p = q1; |
1534 | } | |
1535 | else | |
1536 | { | |
2cd99985 | 1537 | copy = (char *) alloca (p - *argptr + 1 + (q1 - q)); |
d96b54ea JK |
1538 | bcopy (*argptr, copy, p - *argptr); |
1539 | copy[p - *argptr] = '\0'; | |
1540 | } | |
bd5635a1 RP |
1541 | |
1542 | /* no line number may be specified */ | |
1543 | while (*p == ' ' || *p == '\t') p++; | |
1544 | *argptr = p; | |
1545 | ||
1546 | sym = 0; | |
1547 | i1 = 0; /* counter for the symbol array */ | |
1548 | t = SYMBOL_TYPE (sym_class); | |
1549 | sym_arr = (struct symbol **) alloca(TYPE_NFN_FIELDS_TOTAL (t) * sizeof(struct symbol*)); | |
1550 | physnames = (char **) alloca (TYPE_NFN_FIELDS_TOTAL (t) * sizeof(char*)); | |
1551 | ||
1552 | if (destructor_name_p (copy, t)) | |
1553 | { | |
1554 | /* destructors are a special case. */ | |
1555 | struct fn_field *f = TYPE_FN_FIELDLIST1 (t, 0); | |
1556 | int len = TYPE_FN_FIELDLIST_LENGTH (t, 0) - 1; | |
1557 | char *phys_name = TYPE_FN_FIELD_PHYSNAME (f, len); | |
1558 | physnames[i1] = (char *)alloca (strlen (phys_name) + 1); | |
1559 | strcpy (physnames[i1], phys_name); | |
1560 | sym_arr[i1] = | |
1561 | lookup_symbol (phys_name, SYMBOL_BLOCK_VALUE (sym_class), | |
1562 | VAR_NAMESPACE, 0, (struct symtab **)NULL); | |
1563 | if (sym_arr[i1]) i1++; | |
1564 | } | |
1565 | else | |
1566 | i1 = find_methods (t, copy, physnames, sym_arr); | |
1567 | if (i1 == 1) | |
1568 | { | |
1569 | /* There is exactly one field with that name. */ | |
1570 | sym = sym_arr[0]; | |
1571 | ||
1572 | if (sym && SYMBOL_CLASS (sym) == LOC_BLOCK) | |
1573 | { | |
1574 | /* Arg is the name of a function */ | |
1575 | pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)) + FUNCTION_START_OFFSET; | |
1576 | if (funfirstline) | |
1577 | SKIP_PROLOGUE (pc); | |
1578 | values.sals = (struct symtab_and_line *)xmalloc (sizeof (struct symtab_and_line)); | |
1579 | values.nelts = 1; | |
1580 | values.sals[0] = find_pc_line (pc, 0); | |
1581 | values.sals[0].pc = (values.sals[0].end && values.sals[0].pc != pc) ? values.sals[0].end : pc; | |
1582 | } | |
1583 | else | |
1584 | { | |
1585 | values.nelts = 0; | |
1586 | } | |
1587 | return values; | |
1588 | } | |
1589 | if (i1 > 0) | |
1590 | { | |
1591 | /* There is more than one field with that name | |
1592 | (overloaded). Ask the user which one to use. */ | |
1593 | return decode_line_2 (sym_arr, i1, funfirstline); | |
1594 | } | |
1595 | else | |
d96b54ea JK |
1596 | { |
1597 | char *tmp; | |
1598 | ||
1599 | if (OPNAME_PREFIX_P (copy)) | |
1600 | { | |
1601 | tmp = (char *)alloca (strlen (copy+3) + 9); | |
1602 | strcpy (tmp, "operator "); | |
1603 | strcat (tmp, copy+3); | |
1604 | } | |
1605 | else | |
1606 | tmp = copy; | |
0e2a896c | 1607 | if (tmp[0] == '~') |
f70be3e4 JG |
1608 | warning ("the class `%s' does not have destructor defined", |
1609 | sym_class->name); | |
0e2a896c | 1610 | else |
f70be3e4 JG |
1611 | warning ("the class %s does not have any method named %s", |
1612 | sym_class->name, tmp); | |
1613 | cplusplus_hint (saved_arg); | |
1614 | return_to_top_level (); | |
d96b54ea | 1615 | } |
bd5635a1 RP |
1616 | } |
1617 | else | |
f70be3e4 JG |
1618 | { |
1619 | /* The quotes are important if copy is empty. */ | |
1620 | warning ("can't find class, struct, or union named \"%s\"", | |
1621 | copy); | |
1622 | cplusplus_hint (saved_arg); | |
1623 | return_to_top_level (); | |
1624 | } | |
bd5635a1 RP |
1625 | } |
1626 | /* end of C++ */ | |
1627 | ||
1628 | ||
1629 | /* Extract the file name. */ | |
1630 | p1 = p; | |
1631 | while (p != *argptr && p[-1] == ' ') --p; | |
58050209 DHW |
1632 | copy = (char *) alloca (p - *argptr + 1); |
1633 | bcopy (*argptr, copy, p - *argptr); | |
1634 | copy[p - *argptr] = 0; | |
bd5635a1 RP |
1635 | |
1636 | /* Find that file's data. */ | |
1637 | s = lookup_symtab (copy); | |
1638 | if (s == 0) | |
1639 | { | |
cba0d141 | 1640 | if (!have_full_symbols () && !have_partial_symbols ()) |
bd5635a1 RP |
1641 | error (no_symtab_msg); |
1642 | error ("No source file named %s.", copy); | |
1643 | } | |
1644 | ||
1645 | /* Discard the file name from the arg. */ | |
1646 | p = p1 + 1; | |
1647 | while (*p == ' ' || *p == '\t') p++; | |
1648 | *argptr = p; | |
1649 | } | |
1650 | ||
1651 | /* S is specified file's symtab, or 0 if no file specified. | |
1652 | arg no longer contains the file name. */ | |
1653 | ||
1654 | /* Check whether arg is all digits (and sign) */ | |
1655 | ||
1656 | p = *argptr; | |
1657 | if (*p == '-' || *p == '+') p++; | |
1658 | while (*p >= '0' && *p <= '9') | |
1659 | p++; | |
1660 | ||
1661 | if (p != *argptr && (*p == 0 || *p == ' ' || *p == '\t' || *p == ',')) | |
1662 | { | |
1663 | /* We found a token consisting of all digits -- at least one digit. */ | |
1664 | enum sign {none, plus, minus} sign = none; | |
1665 | ||
1666 | /* This is where we need to make sure that we have good defaults. | |
1667 | We must guarantee that this section of code is never executed | |
1668 | when we are called with just a function name, since | |
1669 | select_source_symtab calls us with such an argument */ | |
1670 | ||
1671 | if (s == 0 && default_symtab == 0) | |
1672 | { | |
bd5635a1 RP |
1673 | select_source_symtab (0); |
1674 | default_symtab = current_source_symtab; | |
1675 | default_line = current_source_line; | |
1676 | } | |
1677 | ||
1678 | if (**argptr == '+') | |
1679 | sign = plus, (*argptr)++; | |
1680 | else if (**argptr == '-') | |
1681 | sign = minus, (*argptr)++; | |
1682 | val.line = atoi (*argptr); | |
1683 | switch (sign) | |
1684 | { | |
1685 | case plus: | |
1686 | if (p == *argptr) | |
1687 | val.line = 5; | |
1688 | if (s == 0) | |
1689 | val.line = default_line + val.line; | |
1690 | break; | |
1691 | case minus: | |
1692 | if (p == *argptr) | |
1693 | val.line = 15; | |
1694 | if (s == 0) | |
1695 | val.line = default_line - val.line; | |
1696 | else | |
1697 | val.line = 1; | |
1698 | break; | |
1699 | case none: | |
1700 | break; /* No need to adjust val.line. */ | |
1701 | } | |
1702 | ||
1703 | while (*p == ' ' || *p == '\t') p++; | |
1704 | *argptr = p; | |
1705 | if (s == 0) | |
1706 | s = default_symtab; | |
1707 | val.symtab = s; | |
1708 | val.pc = 0; | |
1709 | values.sals = (struct symtab_and_line *)xmalloc (sizeof (struct symtab_and_line)); | |
1710 | values.sals[0] = val; | |
1711 | values.nelts = 1; | |
1712 | return values; | |
1713 | } | |
1714 | ||
1715 | /* Arg token is not digits => try it as a variable name | |
1716 | Find the next token (everything up to end or next whitespace). */ | |
2cd99985 | 1717 | |
f70be3e4 | 1718 | p = skip_quoted (*argptr); |
bd5635a1 RP |
1719 | copy = (char *) alloca (p - *argptr + 1); |
1720 | bcopy (*argptr, copy, p - *argptr); | |
f70be3e4 JG |
1721 | copy[p - *argptr] = '\0'; |
1722 | if ((copy[0] == copy [p - *argptr - 1]) | |
1723 | && strchr (gdb_completer_quote_characters, copy[0]) != NULL) | |
1724 | { | |
1725 | char *temp; | |
1726 | copy [p - *argptr - 1] = '\0'; | |
1727 | copy++; | |
1728 | if ((temp = expensive_mangler (copy)) != NULL) | |
1729 | { | |
1730 | copy = temp; | |
1731 | } | |
1732 | } | |
bd5635a1 RP |
1733 | while (*p == ' ' || *p == '\t') p++; |
1734 | *argptr = p; | |
1735 | ||
1736 | /* Look up that token as a variable. | |
1737 | If file specified, use that file's per-file block to start with. */ | |
1738 | ||
1739 | sym = lookup_symbol (copy, | |
3ba6a043 | 1740 | (s ? BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK) |
bd5635a1 RP |
1741 | : get_selected_block ()), |
1742 | VAR_NAMESPACE, 0, &sym_symtab); | |
1743 | ||
1744 | if (sym != NULL) | |
1745 | { | |
1746 | if (SYMBOL_CLASS (sym) == LOC_BLOCK) | |
1747 | { | |
1748 | /* Arg is the name of a function */ | |
1749 | pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)) + FUNCTION_START_OFFSET; | |
1750 | if (funfirstline) | |
1751 | SKIP_PROLOGUE (pc); | |
1752 | val = find_pc_line (pc, 0); | |
1753 | #ifdef PROLOGUE_FIRSTLINE_OVERLAP | |
1754 | /* Convex: no need to suppress code on first line, if any */ | |
1755 | val.pc = pc; | |
1756 | #else | |
7b2a87ca JG |
1757 | /* If SKIP_PROLOGUE left us in mid-line, and the next line is still |
1758 | part of the same function: | |
1759 | advance to next line, | |
1760 | recalculate its line number (might not be N+1). */ | |
1761 | if (val.pc != pc && val.end && | |
cba0d141 | 1762 | lookup_minimal_symbol_by_pc (pc) == lookup_minimal_symbol_by_pc (val.end)) { |
7b2a87ca JG |
1763 | pc = val.end; /* First pc of next line */ |
1764 | val = find_pc_line (pc, 0); | |
1765 | } | |
1766 | val.pc = pc; | |
bd5635a1 RP |
1767 | #endif |
1768 | values.sals = (struct symtab_and_line *)xmalloc (sizeof (struct symtab_and_line)); | |
1769 | values.sals[0] = val; | |
1770 | values.nelts = 1; | |
1771 | ||
1772 | /* I think this is always the same as the line that | |
1773 | we calculate above, but the general principle is | |
1774 | "trust the symbols more than stuff like | |
1775 | SKIP_PROLOGUE". */ | |
1776 | if (SYMBOL_LINE (sym) != 0) | |
1777 | values.sals[0].line = SYMBOL_LINE (sym); | |
1778 | ||
1779 | return values; | |
1780 | } | |
1781 | else if (SYMBOL_LINE (sym) != 0) | |
1782 | { | |
1783 | /* We know its line number. */ | |
1784 | values.sals = (struct symtab_and_line *) | |
1785 | xmalloc (sizeof (struct symtab_and_line)); | |
1786 | values.nelts = 1; | |
1787 | bzero (&values.sals[0], sizeof (values.sals[0])); | |
1788 | values.sals[0].symtab = sym_symtab; | |
1789 | values.sals[0].line = SYMBOL_LINE (sym); | |
1790 | return values; | |
1791 | } | |
1792 | else | |
1793 | /* This can happen if it is compiled with a compiler which doesn't | |
1794 | put out line numbers for variables. */ | |
1795 | error ("Line number not known for symbol \"%s\"", copy); | |
1796 | } | |
1797 | ||
cba0d141 JG |
1798 | msymbol = lookup_minimal_symbol (copy, (struct objfile *) NULL); |
1799 | if (msymbol != NULL) | |
bd5635a1 RP |
1800 | { |
1801 | val.symtab = 0; | |
1802 | val.line = 0; | |
cba0d141 | 1803 | val.pc = msymbol -> address + FUNCTION_START_OFFSET; |
bd5635a1 RP |
1804 | if (funfirstline) |
1805 | SKIP_PROLOGUE (val.pc); | |
1806 | values.sals = (struct symtab_and_line *)xmalloc (sizeof (struct symtab_and_line)); | |
1807 | values.sals[0] = val; | |
1808 | values.nelts = 1; | |
1809 | return values; | |
1810 | } | |
1811 | ||
cba0d141 JG |
1812 | if (!have_full_symbols () && |
1813 | !have_partial_symbols () && !have_minimal_symbols ()) | |
997a978c JG |
1814 | error (no_symtab_msg); |
1815 | ||
f70be3e4 | 1816 | error ("Function \"%s\" not defined.", copy); |
bd5635a1 RP |
1817 | return values; /* for lint */ |
1818 | } | |
1819 | ||
1820 | struct symtabs_and_lines | |
1821 | decode_line_spec (string, funfirstline) | |
1822 | char *string; | |
1823 | int funfirstline; | |
1824 | { | |
1825 | struct symtabs_and_lines sals; | |
1826 | if (string == 0) | |
1827 | error ("Empty line specification."); | |
1828 | sals = decode_line_1 (&string, funfirstline, | |
1829 | current_source_symtab, current_source_line); | |
1830 | if (*string) | |
1831 | error ("Junk at end of line specification: %s", string); | |
1832 | return sals; | |
1833 | } | |
1834 | ||
1835 | /* Given a list of NELTS symbols in sym_arr (with corresponding | |
1836 | mangled names in physnames), return a list of lines to operate on | |
1837 | (ask user if necessary). */ | |
cba0d141 | 1838 | static struct symtabs_and_lines |
bd5635a1 RP |
1839 | decode_line_2 (sym_arr, nelts, funfirstline) |
1840 | struct symbol *sym_arr[]; | |
1841 | int nelts; | |
1842 | int funfirstline; | |
1843 | { | |
bd5635a1 RP |
1844 | struct symtabs_and_lines values, return_values; |
1845 | register CORE_ADDR pc; | |
cba0d141 | 1846 | char *args, *arg1; |
bd5635a1 RP |
1847 | int i; |
1848 | char *prompt; | |
1849 | ||
1850 | values.sals = (struct symtab_and_line *) alloca (nelts * sizeof(struct symtab_and_line)); | |
1851 | return_values.sals = (struct symtab_and_line *) xmalloc (nelts * sizeof(struct symtab_and_line)); | |
1852 | ||
1853 | i = 0; | |
1854 | printf("[0] cancel\n[1] all\n"); | |
1855 | while (i < nelts) | |
1856 | { | |
1857 | if (sym_arr[i] && SYMBOL_CLASS (sym_arr[i]) == LOC_BLOCK) | |
1858 | { | |
1859 | /* Arg is the name of a function */ | |
1860 | pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym_arr[i])) | |
1861 | + FUNCTION_START_OFFSET; | |
1862 | if (funfirstline) | |
1863 | SKIP_PROLOGUE (pc); | |
1864 | values.sals[i] = find_pc_line (pc, 0); | |
1865 | values.sals[i].pc = (values.sals[i].end && values.sals[i].pc != pc) ? | |
1866 | values.sals[i].end : pc; | |
1867 | printf("[%d] file:%s; line number:%d\n", | |
1868 | (i+2), values.sals[i].symtab->filename, values.sals[i].line); | |
1869 | } | |
1870 | else printf ("?HERE\n"); | |
1871 | i++; | |
1872 | } | |
1873 | ||
1874 | if ((prompt = getenv ("PS2")) == NULL) | |
1875 | { | |
1876 | prompt = ">"; | |
1877 | } | |
1878 | printf("%s ",prompt); | |
1879 | fflush(stdout); | |
1880 | ||
cba0d141 | 1881 | args = command_line_input ((char *) NULL, 0); |
bd5635a1 RP |
1882 | |
1883 | if (args == 0) | |
1884 | error_no_arg ("one or more choice numbers"); | |
1885 | ||
1886 | i = 0; | |
1887 | while (*args) | |
1888 | { | |
1889 | int num; | |
1890 | ||
1891 | arg1 = args; | |
1892 | while (*arg1 >= '0' && *arg1 <= '9') arg1++; | |
1893 | if (*arg1 && *arg1 != ' ' && *arg1 != '\t') | |
1894 | error ("Arguments must be choice numbers."); | |
1895 | ||
1896 | num = atoi (args); | |
1897 | ||
1898 | if (num == 0) | |
1899 | error ("cancelled"); | |
1900 | else if (num == 1) | |
1901 | { | |
1902 | bcopy (values.sals, return_values.sals, (nelts * sizeof(struct symtab_and_line))); | |
1903 | return_values.nelts = nelts; | |
1904 | return return_values; | |
1905 | } | |
1906 | ||
1907 | if (num > nelts + 2) | |
1908 | { | |
1909 | printf ("No choice number %d.\n", num); | |
1910 | } | |
1911 | else | |
1912 | { | |
1913 | num -= 2; | |
1914 | if (values.sals[num].pc) | |
1915 | { | |
1916 | return_values.sals[i++] = values.sals[num]; | |
1917 | values.sals[num].pc = 0; | |
1918 | } | |
1919 | else | |
1920 | { | |
1921 | printf ("duplicate request for %d ignored.\n", num); | |
1922 | } | |
1923 | } | |
1924 | ||
1925 | args = arg1; | |
1926 | while (*args == ' ' || *args == '\t') args++; | |
1927 | } | |
1928 | return_values.nelts = i; | |
1929 | return return_values; | |
1930 | } | |
1931 | ||
bd5635a1 RP |
1932 | \f |
1933 | /* Slave routine for sources_info. Force line breaks at ,'s. | |
1934 | NAME is the name to print and *FIRST is nonzero if this is the first | |
1935 | name printed. Set *FIRST to zero. */ | |
1936 | static void | |
1937 | output_source_filename (name, first) | |
1938 | char *name; | |
1939 | int *first; | |
1940 | { | |
bd5635a1 RP |
1941 | /* Table of files printed so far. Since a single source file can |
1942 | result in several partial symbol tables, we need to avoid printing | |
1943 | it more than once. Note: if some of the psymtabs are read in and | |
1944 | some are not, it gets printed both under "Source files for which | |
1945 | symbols have been read" and "Source files for which symbols will | |
1946 | be read in on demand". I consider this a reasonable way to deal | |
1947 | with the situation. I'm not sure whether this can also happen for | |
1948 | symtabs; it doesn't hurt to check. */ | |
1949 | static char **tab = NULL; | |
1950 | /* Allocated size of tab in elements. | |
1951 | Start with one 256-byte block (when using GNU malloc.c). | |
1952 | 24 is the malloc overhead when range checking is in effect. */ | |
1953 | static int tab_alloc_size = (256 - 24) / sizeof (char *); | |
1954 | /* Current size of tab in elements. */ | |
1955 | static int tab_cur_size; | |
1956 | ||
1957 | char **p; | |
1958 | ||
1959 | if (*first) | |
1960 | { | |
1961 | if (tab == NULL) | |
1962 | tab = (char **) xmalloc (tab_alloc_size * sizeof (*tab)); | |
1963 | tab_cur_size = 0; | |
1964 | } | |
1965 | ||
1966 | /* Is NAME in tab? */ | |
1967 | for (p = tab; p < tab + tab_cur_size; p++) | |
1968 | if (strcmp (*p, name) == 0) | |
1969 | /* Yes; don't print it again. */ | |
1970 | return; | |
1971 | /* No; add it to tab. */ | |
1972 | if (tab_cur_size == tab_alloc_size) | |
1973 | { | |
1974 | tab_alloc_size *= 2; | |
cba0d141 | 1975 | tab = (char **) xrealloc ((char *) tab, tab_alloc_size * sizeof (*tab)); |
bd5635a1 RP |
1976 | } |
1977 | tab[tab_cur_size++] = name; | |
1978 | ||
1979 | if (*first) | |
1980 | { | |
bd5635a1 RP |
1981 | *first = 0; |
1982 | } | |
1983 | else | |
1984 | { | |
f70be3e4 | 1985 | printf_filtered (", "); |
bd5635a1 RP |
1986 | } |
1987 | ||
f70be3e4 | 1988 | wrap_here (""); |
bd5635a1 | 1989 | fputs_filtered (name, stdout); |
bd5635a1 RP |
1990 | } |
1991 | ||
1992 | static void | |
35a25840 SG |
1993 | sources_info (ignore, from_tty) |
1994 | char *ignore; | |
1995 | int from_tty; | |
bd5635a1 RP |
1996 | { |
1997 | register struct symtab *s; | |
1998 | register struct partial_symtab *ps; | |
cba0d141 | 1999 | register struct objfile *objfile; |
bd5635a1 RP |
2000 | int first; |
2001 | ||
cba0d141 | 2002 | if (!have_full_symbols () && !have_partial_symbols ()) |
bd5635a1 | 2003 | { |
3053b9f2 | 2004 | error (no_symtab_msg); |
bd5635a1 RP |
2005 | } |
2006 | ||
2007 | printf_filtered ("Source files for which symbols have been read in:\n\n"); | |
2008 | ||
2009 | first = 1; | |
35a25840 | 2010 | ALL_SYMTABS (objfile, s) |
cba0d141 | 2011 | { |
35a25840 | 2012 | output_source_filename (s -> filename, &first); |
cba0d141 | 2013 | } |
bd5635a1 RP |
2014 | printf_filtered ("\n\n"); |
2015 | ||
2016 | printf_filtered ("Source files for which symbols will be read in on demand:\n\n"); | |
2017 | ||
2018 | first = 1; | |
35a25840 | 2019 | ALL_PSYMTABS (objfile, ps) |
cba0d141 | 2020 | { |
35a25840 | 2021 | if (!ps->readin) |
cba0d141 | 2022 | { |
35a25840 | 2023 | output_source_filename (ps -> filename, &first); |
cba0d141 JG |
2024 | } |
2025 | } | |
bd5635a1 RP |
2026 | printf_filtered ("\n"); |
2027 | } | |
2028 | ||
2cd99985 | 2029 | static int |
f70be3e4 | 2030 | name_match (name) |
2cd99985 PB |
2031 | char *name; |
2032 | { | |
f70be3e4 | 2033 | char *demangled = cplus_demangle (name, 0); |
2cd99985 PB |
2034 | if (demangled != NULL) |
2035 | { | |
2036 | int cond = re_exec (demangled); | |
2037 | free (demangled); | |
f70be3e4 | 2038 | return (cond); |
2cd99985 | 2039 | } |
f70be3e4 | 2040 | return (re_exec (name)); |
2cd99985 PB |
2041 | } |
2042 | #define NAME_MATCH(NAME) name_match(NAME) | |
2043 | ||
bd5635a1 RP |
2044 | /* List all symbols (if REGEXP is 0) or all symbols matching REGEXP. |
2045 | If CLASS is zero, list all symbols except functions and type names. | |
2046 | If CLASS is 1, list only functions. | |
2047 | If CLASS is 2, list only type names. | |
997a978c | 2048 | If CLASS is 3, list only method names. |
bd5635a1 RP |
2049 | |
2050 | BPT is non-zero if we should set a breakpoint at the functions | |
2051 | we find. */ | |
2052 | ||
2053 | static void | |
2054 | list_symbols (regexp, class, bpt) | |
2055 | char *regexp; | |
2056 | int class; | |
2057 | int bpt; | |
2058 | { | |
2059 | register struct symtab *s; | |
2060 | register struct partial_symtab *ps; | |
2061 | register struct blockvector *bv; | |
2062 | struct blockvector *prev_bv = 0; | |
2063 | register struct block *b; | |
2064 | register int i, j; | |
2065 | register struct symbol *sym; | |
2066 | struct partial_symbol *psym; | |
cba0d141 JG |
2067 | struct objfile *objfile; |
2068 | struct minimal_symbol *msymbol; | |
35a25840 | 2069 | char *val; |
bd5635a1 RP |
2070 | static char *classnames[] |
2071 | = {"variable", "function", "type", "method"}; | |
2072 | int found_in_file = 0; | |
997a978c | 2073 | int found_misc = 0; |
cba0d141 JG |
2074 | static enum minimal_symbol_type types[] |
2075 | = {mst_data, mst_text, mst_abs, mst_unknown}; | |
2076 | static enum minimal_symbol_type types2[] | |
2077 | = {mst_bss, mst_text, mst_abs, mst_unknown}; | |
2078 | enum minimal_symbol_type ourtype = types[class]; | |
2079 | enum minimal_symbol_type ourtype2 = types2[class]; | |
bd5635a1 RP |
2080 | |
2081 | if (regexp) | |
2cd99985 PB |
2082 | { |
2083 | /* Make sure spacing is right for C++ operators. | |
2084 | This is just a courtesy to make the matching less sensitive | |
2085 | to how many spaces the user leaves between 'operator' | |
2086 | and <TYPENAME> or <OPERATOR>. */ | |
2087 | char *opend; | |
2088 | char *opname = operator_chars (regexp, &opend); | |
2089 | if (*opname) | |
2090 | { | |
2091 | int fix = -1; /* -1 means ok; otherwise number of spaces needed. */ | |
2092 | if (isalpha(*opname) || *opname == '_' || *opname == '$') | |
2093 | { | |
2094 | /* There should 1 space between 'operator' and 'TYPENAME'. */ | |
2095 | if (opname[-1] != ' ' || opname[-2] == ' ') | |
2096 | fix = 1; | |
2097 | } | |
2098 | else | |
2099 | { | |
2100 | /* There should 0 spaces between 'operator' and 'OPERATOR'. */ | |
2101 | if (opname[-1] == ' ') | |
2102 | fix = 0; | |
2103 | } | |
2104 | /* If wrong number of spaces, fix it. */ | |
2105 | if (fix >= 0) | |
2106 | { | |
2107 | char *tmp = (char*) alloca(opend-opname+10); | |
2108 | sprintf(tmp, "operator%.*s%s", fix, " ", opname); | |
2109 | regexp = tmp; | |
2110 | } | |
2111 | } | |
2112 | ||
2113 | if (0 != (val = re_comp (regexp))) | |
2114 | error ("Invalid regexp (%s): %s", val, regexp); | |
2115 | } | |
bd5635a1 | 2116 | |
cba0d141 | 2117 | /* Search through the partial symtabs *first* for all symbols |
bd5635a1 RP |
2118 | matching the regexp. That way we don't have to reproduce all of |
2119 | the machinery below. */ | |
bd5635a1 | 2120 | |
35a25840 | 2121 | ALL_PSYMTABS (objfile, ps) |
cba0d141 | 2122 | { |
35a25840 SG |
2123 | struct partial_symbol *bound, *gbound, *sbound; |
2124 | int keep_going = 1; | |
2125 | ||
2126 | if (ps->readin) continue; | |
2127 | ||
2128 | gbound = objfile->global_psymbols.list + ps->globals_offset + ps->n_global_syms; | |
2129 | sbound = objfile->static_psymbols.list + ps->statics_offset + ps->n_static_syms; | |
2130 | bound = gbound; | |
2131 | ||
2132 | /* Go through all of the symbols stored in a partial | |
2133 | symtab in one loop. */ | |
2134 | psym = objfile->global_psymbols.list + ps->globals_offset; | |
2135 | while (keep_going) | |
bd5635a1 | 2136 | { |
35a25840 | 2137 | if (psym >= bound) |
bd5635a1 | 2138 | { |
35a25840 | 2139 | if (bound == gbound && ps->n_static_syms != 0) |
bd5635a1 | 2140 | { |
35a25840 SG |
2141 | psym = objfile->static_psymbols.list + ps->statics_offset; |
2142 | bound = sbound; | |
bd5635a1 RP |
2143 | } |
2144 | else | |
35a25840 SG |
2145 | keep_going = 0; |
2146 | continue; | |
2147 | } | |
2148 | else | |
2149 | { | |
2150 | QUIT; | |
2151 | ||
2152 | /* If it would match (logic taken from loop below) | |
2153 | load the file and go on to the next one */ | |
2154 | if ((regexp == 0 || NAME_MATCH (SYMBOL_NAME (psym))) | |
2155 | && ((class == 0 && SYMBOL_CLASS (psym) != LOC_TYPEDEF | |
2156 | && SYMBOL_CLASS (psym) != LOC_BLOCK) | |
2157 | || (class == 1 && SYMBOL_CLASS (psym) == LOC_BLOCK) | |
2158 | || (class == 2 && SYMBOL_CLASS (psym) == LOC_TYPEDEF) | |
2159 | || (class == 3 && SYMBOL_CLASS (psym) == LOC_BLOCK))) | |
bd5635a1 | 2160 | { |
35a25840 SG |
2161 | (void) PSYMTAB_TO_SYMTAB(ps); |
2162 | keep_going = 0; | |
bd5635a1 RP |
2163 | } |
2164 | } | |
35a25840 | 2165 | psym++; |
bd5635a1 RP |
2166 | } |
2167 | } | |
2168 | ||
cba0d141 | 2169 | /* Here, we search through the minimal symbol tables for functions that |
bd5635a1 RP |
2170 | match, and call find_pc_symtab on them to force their symbols to |
2171 | be read. The symbol will then be found during the scan of symtabs | |
997a978c JG |
2172 | below. If find_pc_symtab fails, set found_misc so that we will |
2173 | rescan to print any matching symbols without debug info. */ | |
2174 | ||
cba0d141 JG |
2175 | if (class == 1) |
2176 | { | |
35a25840 | 2177 | ALL_MSYMBOLS (objfile, msymbol) |
cba0d141 | 2178 | { |
35a25840 | 2179 | if (msymbol -> type == ourtype || msymbol -> type == ourtype2) |
cba0d141 | 2180 | { |
35a25840 | 2181 | if (regexp == 0 || NAME_MATCH (msymbol -> name)) |
cba0d141 | 2182 | { |
35a25840 | 2183 | if (0 == find_pc_symtab (msymbol -> address)) |
cba0d141 | 2184 | { |
35a25840 | 2185 | found_misc = 1; |
cba0d141 JG |
2186 | } |
2187 | } | |
2188 | } | |
2189 | } | |
bd5635a1 RP |
2190 | } |
2191 | ||
2192 | /* Printout here so as to get after the "Reading in symbols" | |
2193 | messages which will be generated above. */ | |
2194 | if (!bpt) | |
2195 | printf_filtered (regexp | |
2196 | ? "All %ss matching regular expression \"%s\":\n" | |
2197 | : "All defined %ss:\n", | |
2198 | classnames[class], | |
2199 | regexp); | |
2200 | ||
35a25840 | 2201 | ALL_SYMTABS (objfile, s) |
bd5635a1 | 2202 | { |
35a25840 SG |
2203 | found_in_file = 0; |
2204 | bv = BLOCKVECTOR (s); | |
2205 | /* Often many files share a blockvector. | |
2206 | Scan each blockvector only once so that | |
2207 | we don't get every symbol many times. | |
2208 | It happens that the first symtab in the list | |
2209 | for any given blockvector is the main file. */ | |
2210 | if (bv != prev_bv) | |
2211 | for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++) | |
2212 | { | |
2213 | b = BLOCKVECTOR_BLOCK (bv, i); | |
2214 | /* Skip the sort if this block is always sorted. */ | |
2215 | if (!BLOCK_SHOULD_SORT (b)) | |
2216 | sort_block_syms (b); | |
2217 | for (j = 0; j < BLOCK_NSYMS (b); j++) | |
bd5635a1 | 2218 | { |
35a25840 SG |
2219 | QUIT; |
2220 | sym = BLOCK_SYM (b, j); | |
2221 | if ((regexp == 0 || NAME_MATCH (SYMBOL_NAME (sym))) | |
2222 | && ((class == 0 && SYMBOL_CLASS (sym) != LOC_TYPEDEF | |
2223 | && SYMBOL_CLASS (sym) != LOC_BLOCK) | |
2224 | || (class == 1 && SYMBOL_CLASS (sym) == LOC_BLOCK) | |
2225 | || (class == 2 && SYMBOL_CLASS (sym) == LOC_TYPEDEF) | |
2226 | || (class == 3 && SYMBOL_CLASS (sym) == LOC_BLOCK))) | |
bd5635a1 | 2227 | { |
35a25840 | 2228 | if (bpt) |
bd5635a1 | 2229 | { |
35a25840 SG |
2230 | /* Set a breakpoint here, if it's a function */ |
2231 | if (class == 1) | |
2232 | break_command (SYMBOL_NAME(sym), 0); | |
2233 | } | |
2234 | else if (!found_in_file) | |
2235 | { | |
2236 | fputs_filtered ("\nFile ", stdout); | |
2237 | fputs_filtered (s->filename, stdout); | |
2238 | fputs_filtered (":\n", stdout); | |
2239 | } | |
2240 | found_in_file = 1; | |
2241 | ||
2242 | if (class != 2 && i == STATIC_BLOCK) | |
2243 | printf_filtered ("static "); | |
2244 | ||
2245 | /* Typedef that is not a C++ class */ | |
2246 | if (class == 2 | |
2247 | && SYMBOL_NAMESPACE (sym) != STRUCT_NAMESPACE) | |
2248 | typedef_print (SYMBOL_TYPE(sym), sym, stdout); | |
2249 | /* variable, func, or typedef-that-is-c++-class */ | |
2250 | else if (class < 2 || | |
2251 | (class == 2 && | |
2252 | SYMBOL_NAMESPACE(sym) == STRUCT_NAMESPACE)) | |
2253 | { | |
2254 | type_print (SYMBOL_TYPE (sym), | |
2255 | (SYMBOL_CLASS (sym) == LOC_TYPEDEF | |
2256 | ? "" : SYMBOL_NAME (sym)), | |
2257 | stdout, 0); | |
cba0d141 | 2258 | |
35a25840 SG |
2259 | printf_filtered (";\n"); |
2260 | } | |
2261 | else | |
2262 | { | |
bd5635a1 | 2263 | # if 0 |
35a25840 SG |
2264 | /* FIXME, why is this zapped out? */ |
2265 | char buf[1024]; | |
2266 | type_print_base (TYPE_FN_FIELD_TYPE(t, i), stdout, 0, 0); | |
2267 | type_print_varspec_prefix (TYPE_FN_FIELD_TYPE(t, i), stdout, 0); | |
2268 | sprintf (buf, " %s::", type_name_no_tag (t)); | |
2269 | type_print_method_args (TYPE_FN_FIELD_ARGS (t, i), buf, name, stdout); | |
bd5635a1 RP |
2270 | # endif |
2271 | } | |
2272 | } | |
2273 | } | |
35a25840 SG |
2274 | } |
2275 | prev_bv = bv; | |
bd5635a1 | 2276 | } |
997a978c | 2277 | |
997a978c | 2278 | /* If there are no eyes, avoid all contact. I mean, if there are |
cba0d141 JG |
2279 | no debug symbols, then print directly from the msymbol_vector. */ |
2280 | ||
2281 | if (found_misc || class != 1) | |
2282 | { | |
2283 | found_in_file = 0; | |
35a25840 | 2284 | ALL_MSYMBOLS (objfile, msymbol) |
cba0d141 | 2285 | { |
35a25840 | 2286 | if (msymbol -> type == ourtype || msymbol -> type == ourtype2) |
cba0d141 | 2287 | { |
35a25840 | 2288 | if (regexp == 0 || NAME_MATCH (msymbol -> name)) |
cba0d141 | 2289 | { |
35a25840 | 2290 | /* Functions: Look up by address. */ |
f70be3e4 JG |
2291 | if (class != 1 || |
2292 | (0 == find_pc_symtab (msymbol -> address))) | |
cba0d141 | 2293 | { |
35a25840 SG |
2294 | /* Variables/Absolutes: Look up by name */ |
2295 | if (lookup_symbol (msymbol -> name, | |
2296 | (struct block *) 0, VAR_NAMESPACE, 0, | |
2297 | (struct symtab **) 0) == NULL) | |
cba0d141 | 2298 | { |
35a25840 | 2299 | if (!found_in_file) |
cba0d141 | 2300 | { |
35a25840 SG |
2301 | printf_filtered ("\nNon-debugging symbols:\n"); |
2302 | found_in_file = 1; | |
cba0d141 | 2303 | } |
35a25840 SG |
2304 | printf_filtered (" %08x %s\n", |
2305 | msymbol -> address, | |
2306 | msymbol -> name); | |
cba0d141 JG |
2307 | } |
2308 | } | |
2309 | } | |
2310 | } | |
997a978c | 2311 | } |
997a978c | 2312 | } |
bd5635a1 RP |
2313 | } |
2314 | ||
2315 | static void | |
35a25840 | 2316 | variables_info (regexp, from_tty) |
bd5635a1 | 2317 | char *regexp; |
35a25840 | 2318 | int from_tty; |
bd5635a1 RP |
2319 | { |
2320 | list_symbols (regexp, 0, 0); | |
2321 | } | |
2322 | ||
2323 | static void | |
35a25840 | 2324 | functions_info (regexp, from_tty) |
bd5635a1 | 2325 | char *regexp; |
35a25840 | 2326 | int from_tty; |
bd5635a1 RP |
2327 | { |
2328 | list_symbols (regexp, 1, 0); | |
2329 | } | |
2330 | ||
bd5635a1 | 2331 | static void |
35a25840 | 2332 | types_info (regexp, from_tty) |
bd5635a1 | 2333 | char *regexp; |
35a25840 | 2334 | int from_tty; |
bd5635a1 RP |
2335 | { |
2336 | list_symbols (regexp, 2, 0); | |
2337 | } | |
bd5635a1 RP |
2338 | |
2339 | #if 0 | |
2340 | /* Tiemann says: "info methods was never implemented." */ | |
2341 | static void | |
2342 | methods_info (regexp) | |
2343 | char *regexp; | |
2344 | { | |
2345 | list_symbols (regexp, 3, 0); | |
2346 | } | |
2347 | #endif /* 0 */ | |
2348 | ||
2349 | /* Breakpoint all functions matching regular expression. */ | |
2350 | static void | |
35a25840 | 2351 | rbreak_command (regexp, from_tty) |
bd5635a1 | 2352 | char *regexp; |
35a25840 | 2353 | int from_tty; |
bd5635a1 RP |
2354 | { |
2355 | list_symbols (regexp, 1, 1); | |
2356 | } | |
2357 | \f | |
bd5635a1 RP |
2358 | |
2359 | /* Return Nonzero if block a is lexically nested within block b, | |
2360 | or if a and b have the same pc range. | |
2361 | Return zero otherwise. */ | |
2362 | int | |
2363 | contained_in (a, b) | |
2364 | struct block *a, *b; | |
2365 | { | |
2366 | if (!a || !b) | |
2367 | return 0; | |
2368 | return BLOCK_START (a) >= BLOCK_START (b) | |
2369 | && BLOCK_END (a) <= BLOCK_END (b); | |
2370 | } | |
2371 | ||
2372 | \f | |
2373 | /* Helper routine for make_symbol_completion_list. */ | |
2374 | ||
f70be3e4 JG |
2375 | static int return_val_size; |
2376 | static int return_val_index; | |
2377 | static char **return_val; | |
2378 | ||
2379 | /* Test to see if the symbol specified by SYMNAME (or it's demangled | |
2380 | equivalent) matches TEXT in the first TEXT_LEN characters. If so, | |
2381 | add it to the current completion list. */ | |
bd5635a1 | 2382 | |
cba0d141 | 2383 | static void |
f70be3e4 | 2384 | completion_list_add_symbol (symname, text, text_len) |
bd5635a1 | 2385 | char *symname; |
f70be3e4 JG |
2386 | char *text; |
2387 | int text_len; | |
bd5635a1 | 2388 | { |
f70be3e4 JG |
2389 | char *demangled; |
2390 | int newsize; | |
2391 | ||
2392 | /* First see if SYMNAME is a C++ mangled name, and if so, use the | |
2393 | demangled name instead, including any parameters. */ | |
2394 | ||
2395 | if ((demangled = cplus_demangle (symname, DMGL_PARAMS | DMGL_ANSI)) != NULL) | |
2396 | { | |
2397 | symname = demangled; | |
2398 | } | |
2399 | ||
2400 | /* If we have a match for a completion, then add SYMNAME to the current | |
2401 | list of matches. Note that we always make a copy of the string, even | |
2402 | if it is one that was returned from cplus_demangle and is already | |
2403 | in malloc'd memory. */ | |
2404 | ||
2405 | if (strncmp (symname, text, text_len) == 0) | |
2406 | { | |
2407 | if (return_val_index + 3 > return_val_size) | |
2408 | { | |
2409 | newsize = (return_val_size *= 2) * sizeof (char *); | |
2410 | return_val = (char **) xrealloc ((char *) return_val, newsize); | |
2411 | } | |
2412 | return_val[return_val_index++] = savestring (symname, strlen (symname)); | |
2413 | return_val[return_val_index] = NULL; | |
2414 | } | |
2415 | ||
2416 | if (demangled != NULL) | |
2417 | { | |
2418 | free (demangled); | |
2419 | } | |
bd5635a1 RP |
2420 | } |
2421 | ||
2422 | /* Return a NULL terminated array of all symbols (regardless of class) which | |
2423 | begin by matching TEXT. If the answer is no symbols, then the return value | |
2424 | is an array which contains only a NULL pointer. | |
2425 | ||
f70be3e4 JG |
2426 | Problem: All of the symbols have to be copied because readline frees them. |
2427 | I'm not going to worry about this; hopefully there won't be that many. */ | |
bd5635a1 RP |
2428 | |
2429 | char ** | |
2430 | make_symbol_completion_list (text) | |
2431 | char *text; | |
2432 | { | |
f70be3e4 | 2433 | register struct symbol *sym; |
bd5635a1 RP |
2434 | register struct symtab *s; |
2435 | register struct partial_symtab *ps; | |
cba0d141 JG |
2436 | register struct minimal_symbol *msymbol; |
2437 | register struct objfile *objfile; | |
bd5635a1 | 2438 | register struct block *b, *surrounding_static_block = 0; |
bd5635a1 | 2439 | register int i, j; |
f70be3e4 | 2440 | int text_len; |
bd5635a1 RP |
2441 | struct partial_symbol *psym; |
2442 | ||
f70be3e4 | 2443 | text_len = strlen (text); |
bd5635a1 RP |
2444 | return_val_size = 100; |
2445 | return_val_index = 0; | |
f70be3e4 JG |
2446 | return_val = (char **) xmalloc ((return_val_size + 1) * sizeof (char *)); |
2447 | return_val[0] = NULL; | |
bd5635a1 RP |
2448 | |
2449 | /* Look through the partial symtabs for all symbols which begin | |
2450 | by matching TEXT. Add each one that you find to the list. */ | |
2451 | ||
35a25840 | 2452 | ALL_PSYMTABS (objfile, ps) |
bd5635a1 | 2453 | { |
35a25840 SG |
2454 | /* If the psymtab's been read in we'll get it when we search |
2455 | through the blockvector. */ | |
2456 | if (ps->readin) continue; | |
2457 | ||
2458 | for (psym = objfile->global_psymbols.list + ps->globals_offset; | |
2459 | psym < (objfile->global_psymbols.list + ps->globals_offset | |
2460 | + ps->n_global_syms); | |
2461 | psym++) | |
bd5635a1 | 2462 | { |
f70be3e4 JG |
2463 | /* If interrupted, then quit. */ |
2464 | QUIT; | |
2465 | completion_list_add_symbol (SYMBOL_NAME (psym), text, text_len); | |
35a25840 SG |
2466 | } |
2467 | ||
2468 | for (psym = objfile->static_psymbols.list + ps->statics_offset; | |
2469 | psym < (objfile->static_psymbols.list + ps->statics_offset | |
2470 | + ps->n_static_syms); | |
2471 | psym++) | |
2472 | { | |
2473 | QUIT; | |
f70be3e4 | 2474 | completion_list_add_symbol (SYMBOL_NAME (psym), text, text_len); |
bd5635a1 RP |
2475 | } |
2476 | } | |
2477 | ||
cba0d141 | 2478 | /* At this point scan through the misc symbol vectors and add each |
bd5635a1 RP |
2479 | symbol you find to the list. Eventually we want to ignore |
2480 | anything that isn't a text symbol (everything else will be | |
2481 | handled by the psymtab code above). */ | |
2482 | ||
35a25840 | 2483 | ALL_MSYMBOLS (objfile, msymbol) |
cba0d141 | 2484 | { |
f70be3e4 JG |
2485 | QUIT; |
2486 | completion_list_add_symbol (msymbol -> name, text, text_len); | |
cba0d141 | 2487 | } |
bd5635a1 RP |
2488 | |
2489 | /* Search upwards from currently selected frame (so that we can | |
2490 | complete on local vars. */ | |
f70be3e4 JG |
2491 | |
2492 | for (b = get_selected_block (); b != NULL; b = BLOCK_SUPERBLOCK (b)) | |
2493 | { | |
2494 | if (!BLOCK_SUPERBLOCK (b)) | |
2495 | { | |
2496 | surrounding_static_block = b; /* For elmin of dups */ | |
2497 | } | |
2498 | ||
2499 | /* Also catch fields of types defined in this places which match our | |
2500 | text string. Only complete on types visible from current context. */ | |
2501 | ||
2502 | for (i = 0; i < BLOCK_NSYMS (b); i++) | |
2503 | { | |
2504 | sym = BLOCK_SYM (b, i); | |
2505 | completion_list_add_symbol (SYMBOL_NAME (sym), text, text_len); | |
2506 | if (SYMBOL_CLASS (sym) == LOC_TYPEDEF) | |
2507 | { | |
2508 | struct type *t = SYMBOL_TYPE (sym); | |
2509 | enum type_code c = TYPE_CODE (t); | |
2510 | ||
2511 | if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT) | |
2512 | { | |
2513 | for (j = TYPE_N_BASECLASSES (t); j < TYPE_NFIELDS (t); j++) | |
2514 | { | |
2515 | if (TYPE_FIELD_NAME (t, j)) | |
2516 | { | |
2517 | completion_list_add_symbol (TYPE_FIELD_NAME (t, j), | |
2518 | text, text_len); | |
2519 | } | |
2520 | } | |
2521 | } | |
2522 | } | |
2523 | } | |
2524 | } | |
2525 | ||
2526 | /* Go through the symtabs and check the externs and statics for | |
2527 | symbols which match. */ | |
2528 | ||
2529 | ALL_SYMTABS (objfile, s) | |
2530 | { | |
2531 | QUIT; | |
2532 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK); | |
2533 | for (i = 0; i < BLOCK_NSYMS (b); i++) | |
2534 | { | |
2535 | sym = BLOCK_SYM (b, i); | |
2536 | completion_list_add_symbol (SYMBOL_NAME (sym), text, text_len); | |
2537 | } | |
2538 | } | |
2539 | ||
2540 | ALL_SYMTABS (objfile, s) | |
2541 | { | |
2542 | QUIT; | |
2543 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK); | |
2544 | /* Don't do this block twice. */ | |
2545 | if (b == surrounding_static_block) continue; | |
2546 | for (i = 0; i < BLOCK_NSYMS (b); i++) | |
2547 | { | |
2548 | sym = BLOCK_SYM (b, i); | |
2549 | completion_list_add_symbol (SYMBOL_NAME (sym), text, text_len); | |
2550 | } | |
2551 | } | |
2552 | ||
2553 | return (return_val); | |
2554 | } | |
2555 | ||
2556 | \f | |
2557 | /* Find a mangled symbol that corresponds to LOOKFOR using brute force. | |
2558 | Basically we go munging through available symbols, demangling each one, | |
2559 | looking for a match on the demangled result. */ | |
2560 | ||
2561 | static char * | |
2562 | expensive_mangler (lookfor) | |
2563 | const char *lookfor; | |
2564 | { | |
2565 | register struct symbol *sym; | |
2566 | register struct symtab *s; | |
2567 | register struct partial_symtab *ps; | |
2568 | register struct minimal_symbol *msymbol; | |
2569 | register struct objfile *objfile; | |
2570 | register struct block *b, *surrounding_static_block = 0; | |
2571 | register int i, j; | |
2572 | struct partial_symbol *psym; | |
2573 | char *demangled; | |
2574 | ||
2575 | /* Look through the partial symtabs for a symbol that matches */ | |
2576 | ||
2577 | ALL_PSYMTABS (objfile, ps) | |
2578 | { | |
2579 | /* If the psymtab's been read in we'll get it when we search | |
2580 | through the blockvector. */ | |
2581 | if (ps->readin) continue; | |
2582 | ||
2583 | for (psym = objfile->global_psymbols.list + ps->globals_offset; | |
2584 | psym < (objfile->global_psymbols.list + ps->globals_offset | |
2585 | + ps->n_global_syms); | |
2586 | psym++) | |
2587 | { | |
2588 | QUIT; /* If interrupted, then quit. */ | |
2589 | demangled = demangle_and_match (SYMBOL_NAME (psym), lookfor, | |
2590 | DMGL_PARAMS | DMGL_ANSI); | |
2591 | if (demangled != NULL) | |
2592 | { | |
2593 | free (demangled); | |
2594 | return (SYMBOL_NAME (psym)); | |
2595 | } | |
2596 | } | |
2597 | ||
2598 | for (psym = objfile->static_psymbols.list + ps->statics_offset; | |
2599 | psym < (objfile->static_psymbols.list + ps->statics_offset | |
2600 | + ps->n_static_syms); | |
2601 | psym++) | |
2602 | { | |
2603 | QUIT; | |
2604 | demangled = demangle_and_match (SYMBOL_NAME (psym), lookfor, | |
2605 | DMGL_PARAMS | DMGL_ANSI); | |
2606 | if (demangled != NULL) | |
2607 | { | |
2608 | free (demangled); | |
2609 | return (SYMBOL_NAME (psym)); | |
2610 | } | |
2611 | } | |
2612 | } | |
2613 | ||
2614 | /* Scan through the misc symbol vectors looking for a match. */ | |
2615 | ||
2616 | ALL_MSYMBOLS (objfile, msymbol) | |
2617 | { | |
2618 | QUIT; | |
2619 | demangled = demangle_and_match (msymbol -> name, lookfor, | |
2620 | DMGL_PARAMS | DMGL_ANSI); | |
2621 | if (demangled != NULL) | |
2622 | { | |
2623 | free (demangled); | |
2624 | return (msymbol -> name); | |
2625 | } | |
2626 | } | |
2627 | ||
2628 | /* Search upwards from currently selected frame looking for a match */ | |
2629 | ||
bd5635a1 RP |
2630 | for (b = get_selected_block (); b; b = BLOCK_SUPERBLOCK (b)) |
2631 | { | |
2632 | if (!BLOCK_SUPERBLOCK (b)) | |
2633 | surrounding_static_block = b; /* For elmin of dups */ | |
2634 | ||
2635 | /* Also catch fields of types defined in this places which | |
2636 | match our text string. Only complete on types visible | |
2637 | from current context. */ | |
2638 | for (i = 0; i < BLOCK_NSYMS (b); i++) | |
2639 | { | |
f70be3e4 JG |
2640 | sym = BLOCK_SYM (b, i); |
2641 | demangled = demangle_and_match (SYMBOL_NAME (sym), lookfor, | |
2642 | DMGL_PARAMS | DMGL_ANSI); | |
2643 | if (demangled != NULL) | |
2644 | { | |
2645 | free (demangled); | |
2646 | return (SYMBOL_NAME (sym)); | |
2647 | } | |
bd5635a1 RP |
2648 | if (SYMBOL_CLASS (sym) == LOC_TYPEDEF) |
2649 | { | |
2650 | struct type *t = SYMBOL_TYPE (sym); | |
2651 | enum type_code c = TYPE_CODE (t); | |
2652 | ||
2653 | if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT) | |
f70be3e4 JG |
2654 | { |
2655 | for (j = TYPE_N_BASECLASSES (t); j < TYPE_NFIELDS (t); j++) | |
2656 | { | |
2657 | if (TYPE_FIELD_NAME (t, j)) | |
2658 | { | |
2659 | demangled = | |
2660 | demangle_and_match (TYPE_FIELD_NAME (t, j), | |
2661 | lookfor, | |
2662 | DMGL_PARAMS | DMGL_ANSI); | |
2663 | if (demangled != NULL) | |
2664 | { | |
2665 | free (demangled); | |
2666 | return (TYPE_FIELD_NAME (t, j)); | |
2667 | } | |
2668 | } | |
2669 | } | |
2670 | } | |
bd5635a1 RP |
2671 | } |
2672 | } | |
2673 | } | |
2674 | ||
2675 | /* Go through the symtabs and check the externs and statics for | |
2676 | symbols which match. */ | |
2677 | ||
35a25840 | 2678 | ALL_SYMTABS (objfile, s) |
bd5635a1 | 2679 | { |
f70be3e4 | 2680 | QUIT; |
35a25840 | 2681 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK); |
35a25840 | 2682 | for (i = 0; i < BLOCK_NSYMS (b); i++) |
f70be3e4 JG |
2683 | { |
2684 | sym = BLOCK_SYM (b, i); | |
2685 | demangled = demangle_and_match (SYMBOL_NAME (sym), lookfor, | |
2686 | DMGL_PARAMS | DMGL_ANSI); | |
2687 | if (demangled != NULL) | |
2688 | { | |
2689 | free (demangled); | |
2690 | return (SYMBOL_NAME (sym)); | |
2691 | } | |
2692 | } | |
bd5635a1 RP |
2693 | } |
2694 | ||
35a25840 | 2695 | ALL_SYMTABS (objfile, s) |
bd5635a1 | 2696 | { |
f70be3e4 | 2697 | QUIT; |
35a25840 | 2698 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK); |
35a25840 SG |
2699 | /* Don't do this block twice. */ |
2700 | if (b == surrounding_static_block) continue; | |
35a25840 | 2701 | for (i = 0; i < BLOCK_NSYMS (b); i++) |
f70be3e4 JG |
2702 | { |
2703 | sym = BLOCK_SYM (b, i); | |
2704 | demangled = demangle_and_match (SYMBOL_NAME (sym), lookfor, | |
2705 | DMGL_PARAMS | DMGL_ANSI); | |
2706 | if (demangled != NULL) | |
2707 | { | |
2708 | free (demangled); | |
2709 | return (SYMBOL_NAME (sym)); | |
2710 | } | |
2711 | } | |
bd5635a1 RP |
2712 | } |
2713 | ||
f70be3e4 | 2714 | return (NULL); |
bd5635a1 | 2715 | } |
f70be3e4 | 2716 | |
bd5635a1 | 2717 | \f |
997a978c JG |
2718 | #if 0 |
2719 | /* Add the type of the symbol sym to the type of the current | |
2720 | function whose block we are in (assumed). The type of | |
2721 | this current function is contained in *TYPE. | |
2722 | ||
2723 | This basically works as follows: When we find a function | |
2724 | symbol (N_FUNC with a 'f' or 'F' in the symbol name), we record | |
2725 | a pointer to its type in the global in_function_type. Every | |
2726 | time we come across a parameter symbol ('p' in its name), then | |
2727 | this procedure adds the name and type of that parameter | |
2728 | to the function type pointed to by *TYPE. (Which should correspond | |
2729 | to in_function_type if it was called correctly). | |
2730 | ||
2731 | Note that since we are modifying a type, the result of | |
2732 | lookup_function_type() should be bcopy()ed before calling | |
2733 | this. When not in strict typing mode, the expression | |
2734 | evaluator can choose to ignore this. | |
2735 | ||
2736 | Assumption: All of a function's parameter symbols will | |
2737 | appear before another function symbol is found. The parameters | |
2738 | appear in the same order in the argument list as they do in the | |
2739 | symbol table. */ | |
2740 | ||
2741 | void | |
2742 | add_param_to_type (type,sym) | |
2743 | struct type **type; | |
2744 | struct symbol *sym; | |
2745 | { | |
2746 | int num = ++(TYPE_NFIELDS(*type)); | |
2747 | ||
2748 | if(TYPE_NFIELDS(*type)-1) | |
cba0d141 JG |
2749 | TYPE_FIELDS(*type) = (struct field *) |
2750 | (*current_objfile->xrealloc) ((char *)(TYPE_FIELDS(*type)), | |
2751 | num*sizeof(struct field)); | |
997a978c | 2752 | else |
cba0d141 JG |
2753 | TYPE_FIELDS(*type) = (struct field *) |
2754 | (*current_objfile->xmalloc) (num*sizeof(struct field)); | |
997a978c JG |
2755 | |
2756 | TYPE_FIELD_BITPOS(*type,num-1) = num-1; | |
2757 | TYPE_FIELD_BITSIZE(*type,num-1) = 0; | |
2758 | TYPE_FIELD_TYPE(*type,num-1) = SYMBOL_TYPE(sym); | |
2759 | TYPE_FIELD_NAME(*type,num-1) = SYMBOL_NAME(sym); | |
2760 | } | |
2761 | #endif | |
2762 | \f | |
bd5635a1 RP |
2763 | void |
2764 | _initialize_symtab () | |
2765 | { | |
2766 | add_info ("variables", variables_info, | |
2767 | "All global and static variable names, or those matching REGEXP."); | |
2768 | add_info ("functions", functions_info, | |
2769 | "All function names, or those matching REGEXP."); | |
3ba6a043 JG |
2770 | |
2771 | /* FIXME: This command has at least the following problems: | |
bd5635a1 RP |
2772 | 1. It prints builtin types (in a very strange and confusing fashion). |
2773 | 2. It doesn't print right, e.g. with | |
2774 | typedef struct foo *FOO | |
2775 | type_print prints "FOO" when we want to make it (in this situation) | |
2776 | print "struct foo *". | |
2777 | I also think "ptype" or "whatis" is more likely to be useful (but if | |
2778 | there is much disagreement "info types" can be fixed). */ | |
2779 | add_info ("types", types_info, | |
a0a6174a | 2780 | "All type names, or those matching REGEXP."); |
3ba6a043 | 2781 | |
bd5635a1 RP |
2782 | #if 0 |
2783 | add_info ("methods", methods_info, | |
2784 | "All method names, or those matching REGEXP::REGEXP.\n\ | |
50e0dc41 | 2785 | If the class qualifier is omitted, it is assumed to be the current scope.\n\ |
cba0d141 | 2786 | If the first REGEXP is omitted, then all methods matching the second REGEXP\n\ |
bd5635a1 RP |
2787 | are listed."); |
2788 | #endif | |
2789 | add_info ("sources", sources_info, | |
2790 | "Source files in the program."); | |
2791 | ||
2792 | add_com ("rbreak", no_class, rbreak_command, | |
2793 | "Set a breakpoint for all functions matching REGEXP."); | |
2794 | ||
997a978c | 2795 | /* Initialize the one built-in type that isn't language dependent... */ |
cba0d141 JG |
2796 | builtin_type_error = init_type (TYPE_CODE_ERROR, 0, 0, |
2797 | "<unknown type>", (struct objfile *) NULL); | |
bd5635a1 | 2798 | } |