Commit | Line | Data |
---|---|---|
50641945 | 1 | /* Parser for linespec for the GNU debugger, GDB. |
05ff989b | 2 | |
6aba47ca | 3 | Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
0fb0cc75 JB |
4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, |
5 | 2009 Free Software Foundation, Inc. | |
50641945 FN |
6 | |
7 | This file is part of GDB. | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
50641945 FN |
12 | (at your option) any later version. |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
50641945 FN |
21 | |
22 | #include "defs.h" | |
23 | #include "symtab.h" | |
c5f0f3d0 FN |
24 | #include "frame.h" |
25 | #include "command.h" | |
50641945 FN |
26 | #include "symfile.h" |
27 | #include "objfiles.h" | |
0378c332 | 28 | #include "source.h" |
50641945 | 29 | #include "demangle.h" |
c5f0f3d0 FN |
30 | #include "value.h" |
31 | #include "completer.h" | |
015a42b4 | 32 | #include "cp-abi.h" |
12907978 | 33 | #include "cp-support.h" |
c38da1af | 34 | #include "parser-defs.h" |
fe898f56 | 35 | #include "block.h" |
d2630e69 | 36 | #include "objc-lang.h" |
b9362cc7 | 37 | #include "linespec.h" |
05ff989b | 38 | #include "exceptions.h" |
53c5240f | 39 | #include "language.h" |
dc67126b NR |
40 | #include "interps.h" |
41 | #include "mi/mi-cmds.h" | |
bccdca4a | 42 | #include "target.h" |
50641945 FN |
43 | |
44 | /* We share this one with symtab.c, but it is not exported widely. */ | |
45 | ||
46 | extern char *operator_chars (char *, char **); | |
47 | ||
50641945 FN |
48 | /* Prototypes for local functions */ |
49 | ||
44fe14ab DC |
50 | static void initialize_defaults (struct symtab **default_symtab, |
51 | int *default_line); | |
52 | ||
636b1a6d DC |
53 | static void set_flags (char *arg, int *is_quoted, char **paren_pointer); |
54 | ||
44fe14ab DC |
55 | static struct symtabs_and_lines decode_indirect (char **argptr); |
56 | ||
0960f083 DC |
57 | static char *locate_first_half (char **argptr, int *is_quote_enclosed); |
58 | ||
d2630e69 AF |
59 | static struct symtabs_and_lines decode_objc (char **argptr, |
60 | int funfirstline, | |
61 | struct symtab *file_symtab, | |
62 | char ***canonical, | |
63 | char *saved_arg); | |
64 | ||
614b3b14 DC |
65 | static struct symtabs_and_lines decode_compound (char **argptr, |
66 | int funfirstline, | |
67 | char ***canonical, | |
68 | char *saved_arg, | |
f3a5f1de KO |
69 | char *p, |
70 | int *not_found_ptr); | |
614b3b14 | 71 | |
93d91629 DC |
72 | static struct symbol *lookup_prefix_sym (char **argptr, char *p); |
73 | ||
4224873a DC |
74 | static struct symtabs_and_lines find_method (int funfirstline, |
75 | char ***canonical, | |
76 | char *saved_arg, | |
77 | char *copy, | |
78 | struct type *t, | |
f3a5f1de KO |
79 | struct symbol *sym_class, |
80 | int *not_found_ptr); | |
4224873a | 81 | |
614b3b14 DC |
82 | static NORETURN void cplusplus_error (const char *name, |
83 | const char *fmt, ...) | |
84 | ATTR_NORETURN ATTR_FORMAT (printf, 2, 3); | |
50641945 FN |
85 | |
86 | static int total_number_of_methods (struct type *type); | |
87 | ||
53c5240f PA |
88 | static int find_methods (struct type *, char *, |
89 | enum language, struct symbol **); | |
50641945 | 90 | |
aee8d8ba | 91 | static int add_matching_methods (int method_counter, struct type *t, |
53c5240f | 92 | enum language language, |
aee8d8ba DC |
93 | struct symbol **sym_arr); |
94 | ||
95 | static int add_constructors (int method_counter, struct type *t, | |
53c5240f | 96 | enum language language, |
aee8d8ba DC |
97 | struct symbol **sym_arr); |
98 | ||
50641945 FN |
99 | static void build_canonical_line_spec (struct symtab_and_line *, |
100 | char *, char ***); | |
101 | ||
102 | static char *find_toplevel_char (char *s, char c); | |
103 | ||
889f28e2 AF |
104 | static int is_objc_method_format (const char *s); |
105 | ||
50641945 FN |
106 | static struct symtabs_and_lines decode_line_2 (struct symbol *[], |
107 | int, int, char ***); | |
108 | ||
f3c39e76 | 109 | static struct symtab *symtab_from_filename (char **argptr, |
68219205 JJ |
110 | char *p, int is_quote_enclosed, |
111 | int *not_found_ptr); | |
f3c39e76 | 112 | |
84fba31b DC |
113 | static struct |
114 | symtabs_and_lines decode_all_digits (char **argptr, | |
115 | struct symtab *default_symtab, | |
116 | int default_line, | |
117 | char ***canonical, | |
88d262ca | 118 | struct symtab *file_symtab, |
84fba31b DC |
119 | char *q); |
120 | ||
14e91ac5 DC |
121 | static struct symtabs_and_lines decode_dollar (char *copy, |
122 | int funfirstline, | |
123 | struct symtab *default_symtab, | |
124 | char ***canonical, | |
88d262ca | 125 | struct symtab *file_symtab); |
14e91ac5 | 126 | |
bca02a8a DC |
127 | static struct symtabs_and_lines decode_variable (char *copy, |
128 | int funfirstline, | |
129 | char ***canonical, | |
68219205 JJ |
130 | struct symtab *file_symtab, |
131 | int *not_found_ptr); | |
bca02a8a | 132 | |
413dad4d DC |
133 | static struct |
134 | symtabs_and_lines symbol_found (int funfirstline, | |
135 | char ***canonical, | |
136 | char *copy, | |
137 | struct symbol *sym, | |
2570f2b7 | 138 | struct symtab *file_symtab); |
413dad4d DC |
139 | |
140 | static struct | |
141 | symtabs_and_lines minsym_found (int funfirstline, | |
142 | struct minimal_symbol *msymbol); | |
143 | ||
50641945 FN |
144 | /* Helper functions. */ |
145 | ||
255e7dbf AC |
146 | /* Issue a helpful hint on using the command completion feature on |
147 | single quoted demangled C++ symbols as part of the completion | |
148 | error. */ | |
50641945 | 149 | |
614b3b14 | 150 | static NORETURN void |
255e7dbf | 151 | cplusplus_error (const char *name, const char *fmt, ...) |
50641945 | 152 | { |
255e7dbf | 153 | struct ui_file *tmp_stream; |
f3a5f1de | 154 | char *message; |
255e7dbf AC |
155 | tmp_stream = mem_fileopen (); |
156 | make_cleanup_ui_file_delete (tmp_stream); | |
157 | ||
158 | { | |
159 | va_list args; | |
160 | va_start (args, fmt); | |
161 | vfprintf_unfiltered (tmp_stream, fmt, args); | |
162 | va_end (args); | |
163 | } | |
164 | ||
50641945 FN |
165 | while (*name == '\'') |
166 | name++; | |
255e7dbf AC |
167 | fprintf_unfiltered (tmp_stream, |
168 | ("Hint: try '%s<TAB> or '%s<ESC-?>\n" | |
169 | "(Note leading single quote.)"), | |
170 | name, name); | |
f3a5f1de | 171 | |
759ef836 PA |
172 | message = ui_file_xstrdup (tmp_stream, NULL); |
173 | make_cleanup (xfree, message); | |
174 | throw_error (NOT_FOUND_ERROR, "%s", message); | |
50641945 FN |
175 | } |
176 | ||
177 | /* Return the number of methods described for TYPE, including the | |
178 | methods from types it derives from. This can't be done in the symbol | |
179 | reader because the type of the baseclass might still be stubbed | |
180 | when the definition of the derived class is parsed. */ | |
181 | ||
182 | static int | |
183 | total_number_of_methods (struct type *type) | |
184 | { | |
185 | int n; | |
186 | int count; | |
187 | ||
188 | CHECK_TYPEDEF (type); | |
189 | if (TYPE_CPLUS_SPECIFIC (type) == NULL) | |
190 | return 0; | |
191 | count = TYPE_NFN_FIELDS_TOTAL (type); | |
192 | ||
193 | for (n = 0; n < TYPE_N_BASECLASSES (type); n++) | |
194 | count += total_number_of_methods (TYPE_BASECLASS (type, n)); | |
195 | ||
196 | return count; | |
197 | } | |
198 | ||
199 | /* Recursive helper function for decode_line_1. | |
200 | Look for methods named NAME in type T. | |
201 | Return number of matches. | |
202 | Put matches in SYM_ARR, which should have been allocated with | |
203 | a size of total_number_of_methods (T) * sizeof (struct symbol *). | |
204 | Note that this function is g++ specific. */ | |
205 | ||
206 | static int | |
53c5240f PA |
207 | find_methods (struct type *t, char *name, enum language language, |
208 | struct symbol **sym_arr) | |
50641945 FN |
209 | { |
210 | int i1 = 0; | |
211 | int ibase; | |
50641945 FN |
212 | char *class_name = type_name_no_tag (t); |
213 | ||
214 | /* Ignore this class if it doesn't have a name. This is ugly, but | |
215 | unless we figure out how to get the physname without the name of | |
216 | the class, then the loop can't do any good. */ | |
217 | if (class_name | |
53c5240f | 218 | && (lookup_symbol_in_language (class_name, (struct block *) NULL, |
2570f2b7 | 219 | STRUCT_DOMAIN, language, (int *) NULL))) |
50641945 FN |
220 | { |
221 | int method_counter; | |
5c717440 | 222 | int name_len = strlen (name); |
50641945 | 223 | |
8bd1f2c6 | 224 | CHECK_TYPEDEF (t); |
50641945 FN |
225 | |
226 | /* Loop over each method name. At this level, all overloads of a name | |
227 | are counted as a single name. There is an inner loop which loops over | |
228 | each overload. */ | |
229 | ||
230 | for (method_counter = TYPE_NFN_FIELDS (t) - 1; | |
231 | method_counter >= 0; | |
232 | --method_counter) | |
233 | { | |
50641945 FN |
234 | char *method_name = TYPE_FN_FIELDLIST_NAME (t, method_counter); |
235 | char dem_opname[64]; | |
236 | ||
237 | if (strncmp (method_name, "__", 2) == 0 || | |
238 | strncmp (method_name, "op", 2) == 0 || | |
239 | strncmp (method_name, "type", 4) == 0) | |
240 | { | |
241 | if (cplus_demangle_opname (method_name, dem_opname, DMGL_ANSI)) | |
242 | method_name = dem_opname; | |
243 | else if (cplus_demangle_opname (method_name, dem_opname, 0)) | |
244 | method_name = dem_opname; | |
245 | } | |
246 | ||
13b57657 | 247 | if (strcmp_iw (name, method_name) == 0) |
50641945 | 248 | /* Find all the overloaded methods with that name. */ |
53c5240f | 249 | i1 += add_matching_methods (method_counter, t, language, |
aee8d8ba | 250 | sym_arr + i1); |
5c717440 DJ |
251 | else if (strncmp (class_name, name, name_len) == 0 |
252 | && (class_name[name_len] == '\0' | |
253 | || class_name[name_len] == '<')) | |
53c5240f | 254 | i1 += add_constructors (method_counter, t, language, |
aee8d8ba | 255 | sym_arr + i1); |
50641945 FN |
256 | } |
257 | } | |
258 | ||
259 | /* Only search baseclasses if there is no match yet, since names in | |
260 | derived classes override those in baseclasses. | |
261 | ||
262 | FIXME: The above is not true; it is only true of member functions | |
263 | if they have the same number of arguments (??? - section 13.1 of the | |
264 | ARM says the function members are not in the same scope but doesn't | |
265 | really spell out the rules in a way I understand. In any case, if | |
266 | the number of arguments differ this is a case in which we can overload | |
267 | rather than hiding without any problem, and gcc 2.4.5 does overload | |
268 | rather than hiding in this case). */ | |
269 | ||
270 | if (i1 == 0) | |
271 | for (ibase = 0; ibase < TYPE_N_BASECLASSES (t); ibase++) | |
53c5240f PA |
272 | i1 += find_methods (TYPE_BASECLASS (t, ibase), name, |
273 | language, sym_arr + i1); | |
50641945 FN |
274 | |
275 | return i1; | |
276 | } | |
277 | ||
aee8d8ba DC |
278 | /* Add the symbols associated to methods of the class whose type is T |
279 | and whose name matches the method indexed by METHOD_COUNTER in the | |
280 | array SYM_ARR. Return the number of methods added. */ | |
281 | ||
282 | static int | |
283 | add_matching_methods (int method_counter, struct type *t, | |
53c5240f | 284 | enum language language, struct symbol **sym_arr) |
aee8d8ba DC |
285 | { |
286 | int field_counter; | |
287 | int i1 = 0; | |
288 | ||
289 | for (field_counter = TYPE_FN_FIELDLIST_LENGTH (t, method_counter) - 1; | |
290 | field_counter >= 0; | |
291 | --field_counter) | |
292 | { | |
293 | struct fn_field *f; | |
294 | char *phys_name; | |
295 | ||
296 | f = TYPE_FN_FIELDLIST1 (t, method_counter); | |
297 | ||
298 | if (TYPE_FN_FIELD_STUB (f, field_counter)) | |
299 | { | |
300 | char *tmp_name; | |
301 | ||
302 | tmp_name = gdb_mangle_name (t, | |
303 | method_counter, | |
304 | field_counter); | |
305 | phys_name = alloca (strlen (tmp_name) + 1); | |
306 | strcpy (phys_name, tmp_name); | |
307 | xfree (tmp_name); | |
308 | } | |
309 | else | |
310 | phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter); | |
53c5240f | 311 | |
53c5240f | 312 | sym_arr[i1] = lookup_symbol_in_language (phys_name, |
aee8d8ba | 313 | NULL, VAR_DOMAIN, |
53c5240f | 314 | language, |
2570f2b7 | 315 | (int *) NULL); |
aee8d8ba DC |
316 | if (sym_arr[i1]) |
317 | i1++; | |
318 | else | |
319 | { | |
320 | /* This error message gets printed, but the method | |
321 | still seems to be found | |
322 | fputs_filtered("(Cannot find method ", gdb_stdout); | |
323 | fprintf_symbol_filtered (gdb_stdout, phys_name, | |
324 | language_cplus, | |
325 | DMGL_PARAMS | DMGL_ANSI); | |
326 | fputs_filtered(" - possibly inlined.)\n", gdb_stdout); | |
327 | */ | |
328 | } | |
329 | } | |
330 | ||
331 | return i1; | |
332 | } | |
333 | ||
334 | /* Add the symbols associated to constructors of the class whose type | |
335 | is CLASS_TYPE and which are indexed by by METHOD_COUNTER to the | |
336 | array SYM_ARR. Return the number of methods added. */ | |
337 | ||
338 | static int | |
339 | add_constructors (int method_counter, struct type *t, | |
53c5240f | 340 | enum language language, struct symbol **sym_arr) |
aee8d8ba DC |
341 | { |
342 | int field_counter; | |
343 | int i1 = 0; | |
344 | ||
345 | /* For GCC 3.x and stabs, constructors and destructors | |
346 | have names like __base_ctor and __complete_dtor. | |
347 | Check the physname for now if we're looking for a | |
348 | constructor. */ | |
349 | for (field_counter | |
350 | = TYPE_FN_FIELDLIST_LENGTH (t, method_counter) - 1; | |
351 | field_counter >= 0; | |
352 | --field_counter) | |
353 | { | |
354 | struct fn_field *f; | |
355 | char *phys_name; | |
53c5240f | 356 | |
aee8d8ba DC |
357 | f = TYPE_FN_FIELDLIST1 (t, method_counter); |
358 | ||
359 | /* GCC 3.x will never produce stabs stub methods, so | |
360 | we don't need to handle this case. */ | |
361 | if (TYPE_FN_FIELD_STUB (f, field_counter)) | |
362 | continue; | |
363 | phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter); | |
364 | if (! is_constructor_name (phys_name)) | |
365 | continue; | |
366 | ||
367 | /* If this method is actually defined, include it in the | |
368 | list. */ | |
53c5240f | 369 | sym_arr[i1] = lookup_symbol_in_language (phys_name, |
aee8d8ba | 370 | NULL, VAR_DOMAIN, |
53c5240f | 371 | language, |
2570f2b7 | 372 | (int *) NULL); |
aee8d8ba DC |
373 | if (sym_arr[i1]) |
374 | i1++; | |
375 | } | |
376 | ||
377 | return i1; | |
378 | } | |
379 | ||
50641945 FN |
380 | /* Helper function for decode_line_1. |
381 | Build a canonical line spec in CANONICAL if it is non-NULL and if | |
382 | the SAL has a symtab. | |
383 | If SYMNAME is non-NULL the canonical line spec is `filename:symname'. | |
384 | If SYMNAME is NULL the line number from SAL is used and the canonical | |
385 | line spec is `filename:linenum'. */ | |
386 | ||
387 | static void | |
388 | build_canonical_line_spec (struct symtab_and_line *sal, char *symname, | |
389 | char ***canonical) | |
390 | { | |
391 | char **canonical_arr; | |
392 | char *canonical_name; | |
393 | char *filename; | |
394 | struct symtab *s = sal->symtab; | |
395 | ||
396 | if (s == (struct symtab *) NULL | |
397 | || s->filename == (char *) NULL | |
398 | || canonical == (char ***) NULL) | |
399 | return; | |
400 | ||
401 | canonical_arr = (char **) xmalloc (sizeof (char *)); | |
402 | *canonical = canonical_arr; | |
403 | ||
404 | filename = s->filename; | |
405 | if (symname != NULL) | |
406 | { | |
407 | canonical_name = xmalloc (strlen (filename) + strlen (symname) + 2); | |
408 | sprintf (canonical_name, "%s:%s", filename, symname); | |
409 | } | |
410 | else | |
411 | { | |
412 | canonical_name = xmalloc (strlen (filename) + 30); | |
413 | sprintf (canonical_name, "%s:%d", filename, sal->line); | |
414 | } | |
415 | canonical_arr[0] = canonical_name; | |
416 | } | |
417 | ||
418 | ||
419 | ||
420 | /* Find an instance of the character C in the string S that is outside | |
421 | of all parenthesis pairs, single-quoted strings, and double-quoted | |
8120c9d5 EZ |
422 | strings. Also, ignore the char within a template name, like a ',' |
423 | within foo<int, int>. */ | |
424 | ||
50641945 FN |
425 | static char * |
426 | find_toplevel_char (char *s, char c) | |
427 | { | |
428 | int quoted = 0; /* zero if we're not in quotes; | |
429 | '"' if we're in a double-quoted string; | |
430 | '\'' if we're in a single-quoted string. */ | |
a04257e6 | 431 | int depth = 0; /* Number of unclosed parens we've seen. */ |
50641945 FN |
432 | char *scan; |
433 | ||
434 | for (scan = s; *scan; scan++) | |
435 | { | |
436 | if (quoted) | |
437 | { | |
438 | if (*scan == quoted) | |
439 | quoted = 0; | |
440 | else if (*scan == '\\' && *(scan + 1)) | |
441 | scan++; | |
442 | } | |
443 | else if (*scan == c && ! quoted && depth == 0) | |
444 | return scan; | |
445 | else if (*scan == '"' || *scan == '\'') | |
446 | quoted = *scan; | |
8120c9d5 | 447 | else if (*scan == '(' || *scan == '<') |
50641945 | 448 | depth++; |
8120c9d5 | 449 | else if ((*scan == ')' || *scan == '>') && depth > 0) |
50641945 FN |
450 | depth--; |
451 | } | |
452 | ||
453 | return 0; | |
454 | } | |
455 | ||
889f28e2 AF |
456 | /* Determines if the gives string corresponds to an Objective-C method |
457 | representation, such as -[Foo bar:] or +[Foo bar]. Objective-C symbols | |
458 | are allowed to have spaces and parentheses in them. */ | |
459 | ||
460 | static int | |
461 | is_objc_method_format (const char *s) | |
462 | { | |
463 | if (s == NULL || *s == '\0') | |
464 | return 0; | |
465 | /* Handle arguments with the format FILENAME:SYMBOL. */ | |
466 | if ((s[0] == ':') && (strchr ("+-", s[1]) != NULL) | |
467 | && (s[2] == '[') && strchr(s, ']')) | |
468 | return 1; | |
469 | /* Handle arguments that are just SYMBOL. */ | |
470 | else if ((strchr ("+-", s[0]) != NULL) && (s[1] == '[') && strchr(s, ']')) | |
471 | return 1; | |
472 | return 0; | |
473 | } | |
474 | ||
50641945 FN |
475 | /* Given a list of NELTS symbols in SYM_ARR, return a list of lines to |
476 | operate on (ask user if necessary). | |
477 | If CANONICAL is non-NULL return a corresponding array of mangled names | |
478 | as canonical line specs there. */ | |
479 | ||
480 | static struct symtabs_and_lines | |
481 | decode_line_2 (struct symbol *sym_arr[], int nelts, int funfirstline, | |
482 | char ***canonical) | |
483 | { | |
484 | struct symtabs_and_lines values, return_values; | |
485 | char *args, *arg1; | |
486 | int i; | |
487 | char *prompt; | |
488 | char *symname; | |
489 | struct cleanup *old_chain; | |
490 | char **canonical_arr = (char **) NULL; | |
717d2f5a | 491 | const char *select_mode = multiple_symbols_select_mode (); |
50641945 | 492 | |
717d2f5a JB |
493 | if (select_mode == multiple_symbols_cancel) |
494 | error (_("\ | |
495 | canceled because the command is ambiguous\n\ | |
496 | See set/show multiple-symbol.")); | |
497 | ||
50641945 FN |
498 | values.sals = (struct symtab_and_line *) |
499 | alloca (nelts * sizeof (struct symtab_and_line)); | |
500 | return_values.sals = (struct symtab_and_line *) | |
501 | xmalloc (nelts * sizeof (struct symtab_and_line)); | |
b8c9b27d | 502 | old_chain = make_cleanup (xfree, return_values.sals); |
50641945 FN |
503 | |
504 | if (canonical) | |
505 | { | |
506 | canonical_arr = (char **) xmalloc (nelts * sizeof (char *)); | |
b8c9b27d | 507 | make_cleanup (xfree, canonical_arr); |
50641945 FN |
508 | memset (canonical_arr, 0, nelts * sizeof (char *)); |
509 | *canonical = canonical_arr; | |
510 | } | |
511 | ||
512 | i = 0; | |
50641945 FN |
513 | while (i < nelts) |
514 | { | |
a04257e6 | 515 | init_sal (&return_values.sals[i]); /* Initialize to zeroes. */ |
fe39c653 | 516 | init_sal (&values.sals[i]); |
50641945 | 517 | if (sym_arr[i] && SYMBOL_CLASS (sym_arr[i]) == LOC_BLOCK) |
717d2f5a | 518 | values.sals[i] = find_function_start_sal (sym_arr[i], funfirstline); |
50641945 FN |
519 | i++; |
520 | } | |
521 | ||
717d2f5a JB |
522 | /* If select_mode is "all", then do not print the multiple-choice |
523 | menu and act as if the user had chosen choice "1" (all). */ | |
dc67126b NR |
524 | if (select_mode == multiple_symbols_all |
525 | || ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ()))) | |
717d2f5a JB |
526 | args = "1"; |
527 | else | |
50641945 | 528 | { |
717d2f5a JB |
529 | i = 0; |
530 | printf_unfiltered (_("[0] cancel\n[1] all\n")); | |
531 | while (i < nelts) | |
532 | { | |
533 | if (sym_arr[i] && SYMBOL_CLASS (sym_arr[i]) == LOC_BLOCK) | |
534 | { | |
535 | if (values.sals[i].symtab) | |
536 | printf_unfiltered ("[%d] %s at %s:%d\n", | |
537 | (i + 2), | |
538 | SYMBOL_PRINT_NAME (sym_arr[i]), | |
539 | values.sals[i].symtab->filename, | |
540 | values.sals[i].line); | |
541 | else | |
542 | printf_unfiltered (_("[%d] %s at ?FILE:%d [No symtab? Probably broken debug info...]\n"), | |
543 | (i + 2), | |
544 | SYMBOL_PRINT_NAME (sym_arr[i]), | |
545 | values.sals[i].line); | |
546 | ||
547 | } | |
548 | else | |
549 | printf_unfiltered (_("?HERE\n")); | |
550 | i++; | |
551 | } | |
552 | ||
553 | prompt = getenv ("PS2"); | |
554 | if (prompt == NULL) | |
555 | { | |
556 | prompt = "> "; | |
557 | } | |
558 | args = command_line_input (prompt, 0, "overload-choice"); | |
50641945 | 559 | } |
50641945 FN |
560 | |
561 | if (args == 0 || *args == 0) | |
e2e0b3e5 | 562 | error_no_arg (_("one or more choice numbers")); |
50641945 FN |
563 | |
564 | i = 0; | |
565 | while (*args) | |
566 | { | |
567 | int num; | |
568 | ||
569 | arg1 = args; | |
570 | while (*arg1 >= '0' && *arg1 <= '9') | |
571 | arg1++; | |
572 | if (*arg1 && *arg1 != ' ' && *arg1 != '\t') | |
8a3fe4f8 | 573 | error (_("Arguments must be choice numbers.")); |
50641945 FN |
574 | |
575 | num = atoi (args); | |
576 | ||
577 | if (num == 0) | |
8a3fe4f8 | 578 | error (_("canceled")); |
50641945 FN |
579 | else if (num == 1) |
580 | { | |
581 | if (canonical_arr) | |
582 | { | |
583 | for (i = 0; i < nelts; i++) | |
584 | { | |
585 | if (canonical_arr[i] == NULL) | |
586 | { | |
3567439c | 587 | symname = SYMBOL_LINKAGE_NAME (sym_arr[i]); |
1b36a34b | 588 | canonical_arr[i] = xstrdup (symname); |
50641945 FN |
589 | } |
590 | } | |
591 | } | |
592 | memcpy (return_values.sals, values.sals, | |
593 | (nelts * sizeof (struct symtab_and_line))); | |
594 | return_values.nelts = nelts; | |
595 | discard_cleanups (old_chain); | |
596 | return return_values; | |
597 | } | |
598 | ||
599 | if (num >= nelts + 2) | |
600 | { | |
a3f17187 | 601 | printf_unfiltered (_("No choice number %d.\n"), num); |
50641945 FN |
602 | } |
603 | else | |
604 | { | |
605 | num -= 2; | |
606 | if (values.sals[num].pc) | |
607 | { | |
608 | if (canonical_arr) | |
609 | { | |
3567439c | 610 | symname = SYMBOL_LINKAGE_NAME (sym_arr[num]); |
b8c9b27d | 611 | make_cleanup (xfree, symname); |
1b36a34b | 612 | canonical_arr[i] = xstrdup (symname); |
50641945 FN |
613 | } |
614 | return_values.sals[i++] = values.sals[num]; | |
615 | values.sals[num].pc = 0; | |
616 | } | |
617 | else | |
618 | { | |
a3f17187 | 619 | printf_unfiltered (_("duplicate request for %d ignored.\n"), num); |
50641945 FN |
620 | } |
621 | } | |
622 | ||
623 | args = arg1; | |
624 | while (*args == ' ' || *args == '\t') | |
625 | args++; | |
626 | } | |
627 | return_values.nelts = i; | |
628 | discard_cleanups (old_chain); | |
629 | return return_values; | |
630 | } | |
631 | \f | |
632 | /* The parser of linespec itself. */ | |
633 | ||
634 | /* Parse a string that specifies a line number. | |
635 | Pass the address of a char * variable; that variable will be | |
636 | advanced over the characters actually parsed. | |
637 | ||
638 | The string can be: | |
639 | ||
640 | LINENUM -- that line number in current file. PC returned is 0. | |
641 | FILE:LINENUM -- that line in that file. PC returned is 0. | |
642 | FUNCTION -- line number of openbrace of that function. | |
643 | PC returned is the start of the function. | |
644 | VARIABLE -- line number of definition of that variable. | |
645 | PC returned is 0. | |
646 | FILE:FUNCTION -- likewise, but prefer functions in that file. | |
647 | *EXPR -- line in which address EXPR appears. | |
648 | ||
649 | This may all be followed by an "if EXPR", which we ignore. | |
650 | ||
651 | FUNCTION may be an undebuggable function found in minimal symbol table. | |
652 | ||
653 | If the argument FUNFIRSTLINE is nonzero, we want the first line | |
654 | of real code inside a function when a function is specified, and it is | |
655 | not OK to specify a variable or type to get its line number. | |
656 | ||
657 | DEFAULT_SYMTAB specifies the file to use if none is specified. | |
658 | It defaults to current_source_symtab. | |
659 | DEFAULT_LINE specifies the line number to use for relative | |
660 | line numbers (that start with signs). Defaults to current_source_line. | |
661 | If CANONICAL is non-NULL, store an array of strings containing the canonical | |
662 | line specs there if necessary. Currently overloaded member functions and | |
663 | line numbers or static functions without a filename yield a canonical | |
664 | line spec. The array and the line spec strings are allocated on the heap, | |
665 | it is the callers responsibility to free them. | |
666 | ||
667 | Note that it is possible to return zero for the symtab | |
668 | if no file is validly specified. Callers must check that. | |
68219205 JJ |
669 | Also, the line number returned may be invalid. |
670 | ||
671 | If NOT_FOUND_PTR is not null, store a boolean true/false value at the location, based | |
672 | on whether or not failure occurs due to an unknown function or file. In the case | |
673 | where failure does occur due to an unknown function or file, do not issue an error | |
674 | message. */ | |
50641945 FN |
675 | |
676 | /* We allow single quotes in various places. This is a hideous | |
677 | kludge, which exists because the completer can't yet deal with the | |
678 | lack of single quotes. FIXME: write a linespec_completer which we | |
679 | can use as appropriate instead of make_symbol_completion_list. */ | |
680 | ||
681 | struct symtabs_and_lines | |
682 | decode_line_1 (char **argptr, int funfirstline, struct symtab *default_symtab, | |
68219205 | 683 | int default_line, char ***canonical, int *not_found_ptr) |
50641945 | 684 | { |
f3c39e76 | 685 | char *p; |
614b3b14 | 686 | char *q; |
88d262ca DC |
687 | /* If a file name is specified, this is its symtab. */ |
688 | struct symtab *file_symtab = NULL; | |
50641945 | 689 | |
50641945 | 690 | char *copy; |
636b1a6d DC |
691 | /* This is NULL if there are no parens in *ARGPTR, or a pointer to |
692 | the closing parenthesis if there are parens. */ | |
693 | char *paren_pointer; | |
694 | /* This says whether or not something in *ARGPTR is quoted with | |
695 | completer_quotes (i.e. with single quotes). */ | |
50641945 | 696 | int is_quoted; |
0960f083 | 697 | /* Is part of *ARGPTR is enclosed in double quotes? */ |
50641945 | 698 | int is_quote_enclosed; |
d2630e69 | 699 | int is_objc_method = 0; |
50641945 | 700 | char *saved_arg = *argptr; |
50641945 | 701 | |
68219205 JJ |
702 | if (not_found_ptr) |
703 | *not_found_ptr = 0; | |
704 | ||
50641945 FN |
705 | /* Defaults have defaults. */ |
706 | ||
44fe14ab DC |
707 | initialize_defaults (&default_symtab, &default_line); |
708 | ||
a04257e6 | 709 | /* See if arg is *PC. */ |
50641945 FN |
710 | |
711 | if (**argptr == '*') | |
44fe14ab | 712 | return decode_indirect (argptr); |
50641945 | 713 | |
a04257e6 DC |
714 | /* Set various flags. 'paren_pointer' is important for overload |
715 | checking, where we allow things like: | |
716 | (gdb) break c::f(int) | |
717 | */ | |
50641945 | 718 | |
636b1a6d | 719 | set_flags (*argptr, &is_quoted, &paren_pointer); |
50641945 | 720 | |
0960f083 DC |
721 | /* Check to see if it's a multipart linespec (with colons or |
722 | periods). */ | |
50641945 | 723 | |
17763fd9 EZ |
724 | /* Locate the end of the first half of the linespec. |
725 | After the call, for instance, if the argptr string is "foo.c:123" | |
726 | p will point at "123". If there is only one part, like "foo", p | |
727 | will point to "". If this is a C++ name, like "A::B::foo", p will | |
728 | point to "::B::foo". Argptr is not changed by this call. */ | |
50641945 | 729 | |
0960f083 | 730 | p = locate_first_half (argptr, &is_quote_enclosed); |
50641945 | 731 | |
d2630e69 AF |
732 | /* Check if this is an Objective-C method (anything that starts with |
733 | a '+' or '-' and a '['). */ | |
889f28e2 | 734 | if (is_objc_method_format (p)) |
d2630e69 AF |
735 | { |
736 | is_objc_method = 1; | |
737 | paren_pointer = NULL; /* Just a category name. Ignore it. */ | |
738 | } | |
739 | ||
740 | /* Check if the symbol could be an Objective-C selector. */ | |
741 | ||
742 | { | |
743 | struct symtabs_and_lines values; | |
744 | values = decode_objc (argptr, funfirstline, NULL, | |
745 | canonical, saved_arg); | |
746 | if (values.sals != NULL) | |
747 | return values; | |
748 | } | |
749 | ||
0960f083 | 750 | /* Does it look like there actually were two parts? */ |
50641945 | 751 | |
636b1a6d | 752 | if ((p[0] == ':' || p[0] == '.') && paren_pointer == NULL) |
50641945 | 753 | { |
50641945 FN |
754 | if (is_quoted) |
755 | *argptr = *argptr + 1; | |
f3c39e76 | 756 | |
17763fd9 EZ |
757 | /* Is it a C++ or Java compound data structure? |
758 | The check on p[1] == ':' is capturing the case of "::", | |
759 | since p[0]==':' was checked above. | |
760 | Note that the call to decode_compound does everything | |
761 | for us, including the lookup on the symbol table, so we | |
762 | can return now. */ | |
763 | ||
50641945 | 764 | if (p[0] == '.' || p[1] == ':') |
614b3b14 | 765 | return decode_compound (argptr, funfirstline, canonical, |
f3a5f1de | 766 | saved_arg, p, not_found_ptr); |
50641945 | 767 | |
bc882aa9 | 768 | /* No, the first part is a filename; set file_symtab to be that file's |
f3c39e76 | 769 | symtab. Also, move argptr past the filename. */ |
50641945 | 770 | |
68219205 JJ |
771 | file_symtab = symtab_from_filename (argptr, p, is_quote_enclosed, |
772 | not_found_ptr); | |
50641945 FN |
773 | } |
774 | #if 0 | |
775 | /* No one really seems to know why this was added. It certainly | |
776 | breaks the command line, though, whenever the passed | |
777 | name is of the form ClassName::Method. This bit of code | |
778 | singles out the class name, and if funfirstline is set (for | |
779 | example, you are setting a breakpoint at this function), | |
780 | you get an error. This did not occur with earlier | |
781 | verions, so I am ifdef'ing this out. 3/29/99 */ | |
782 | else | |
783 | { | |
784 | /* Check if what we have till now is a symbol name */ | |
785 | ||
786 | /* We may be looking at a template instantiation such | |
787 | as "foo<int>". Check here whether we know about it, | |
788 | instead of falling through to the code below which | |
789 | handles ordinary function names, because that code | |
790 | doesn't like seeing '<' and '>' in a name -- the | |
791 | skip_quoted call doesn't go past them. So see if we | |
792 | can figure it out right now. */ | |
793 | ||
794 | copy = (char *) alloca (p - *argptr + 1); | |
795 | memcpy (copy, *argptr, p - *argptr); | |
796 | copy[p - *argptr] = '\000'; | |
2570f2b7 | 797 | sym = lookup_symbol (copy, 0, VAR_DOMAIN, 0); |
50641945 FN |
798 | if (sym) |
799 | { | |
50641945 | 800 | *argptr = (*p == '\'') ? p + 1 : p; |
2570f2b7 | 801 | return symbol_found (funfirstline, canonical, copy, sym, NULL); |
50641945 FN |
802 | } |
803 | /* Otherwise fall out from here and go to file/line spec | |
804 | processing, etc. */ | |
805 | } | |
806 | #endif | |
807 | ||
bc882aa9 | 808 | /* file_symtab is specified file's symtab, or 0 if no file specified. |
50641945 FN |
809 | arg no longer contains the file name. */ |
810 | ||
a04257e6 | 811 | /* Check whether arg is all digits (and sign). */ |
50641945 FN |
812 | |
813 | q = *argptr; | |
814 | if (*q == '-' || *q == '+') | |
815 | q++; | |
816 | while (*q >= '0' && *q <= '9') | |
817 | q++; | |
818 | ||
819 | if (q != *argptr && (*q == 0 || *q == ' ' || *q == '\t' || *q == ',')) | |
84fba31b DC |
820 | /* We found a token consisting of all digits -- at least one digit. */ |
821 | return decode_all_digits (argptr, default_symtab, default_line, | |
88d262ca | 822 | canonical, file_symtab, q); |
50641945 FN |
823 | |
824 | /* Arg token is not digits => try it as a variable name | |
825 | Find the next token (everything up to end or next whitespace). */ | |
826 | ||
a04257e6 DC |
827 | if (**argptr == '$') /* May be a convenience variable. */ |
828 | /* One or two $ chars possible. */ | |
829 | p = skip_quoted (*argptr + (((*argptr)[1] == '$') ? 2 : 1)); | |
50641945 FN |
830 | else if (is_quoted) |
831 | { | |
832 | p = skip_quoted (*argptr); | |
833 | if (p[-1] != '\'') | |
8a3fe4f8 | 834 | error (_("Unmatched single quote.")); |
50641945 | 835 | } |
d2630e69 AF |
836 | else if (is_objc_method) |
837 | { | |
838 | /* allow word separators in method names for Obj-C */ | |
839 | p = skip_quoted_chars (*argptr, NULL, ""); | |
840 | } | |
636b1a6d | 841 | else if (paren_pointer != NULL) |
50641945 | 842 | { |
636b1a6d | 843 | p = paren_pointer + 1; |
50641945 FN |
844 | } |
845 | else | |
846 | { | |
847 | p = skip_quoted (*argptr); | |
848 | } | |
849 | ||
19ef5c71 KS |
850 | /* Keep any template parameters */ |
851 | if (*p == '<') | |
852 | p = find_template_name_end (p); | |
853 | ||
50641945 FN |
854 | copy = (char *) alloca (p - *argptr + 1); |
855 | memcpy (copy, *argptr, p - *argptr); | |
856 | copy[p - *argptr] = '\0'; | |
857 | if (p != *argptr | |
858 | && copy[0] | |
859 | && copy[0] == copy[p - *argptr - 1] | |
c5f0f3d0 | 860 | && strchr (get_gdb_completer_quote_characters (), copy[0]) != NULL) |
50641945 FN |
861 | { |
862 | copy[p - *argptr - 1] = '\0'; | |
863 | copy++; | |
864 | } | |
865 | while (*p == ' ' || *p == '\t') | |
866 | p++; | |
867 | *argptr = p; | |
868 | ||
869 | /* If it starts with $: may be a legitimate variable or routine name | |
870 | (e.g. HP-UX millicode routines such as $$dyncall), or it may | |
a04257e6 | 871 | be history value, or it may be a convenience variable. */ |
50641945 FN |
872 | |
873 | if (*copy == '$') | |
14e91ac5 | 874 | return decode_dollar (copy, funfirstline, default_symtab, |
88d262ca | 875 | canonical, file_symtab); |
50641945 FN |
876 | |
877 | /* Look up that token as a variable. | |
878 | If file specified, use that file's per-file block to start with. */ | |
879 | ||
68219205 JJ |
880 | return decode_variable (copy, funfirstline, canonical, |
881 | file_symtab, not_found_ptr); | |
413dad4d | 882 | } |
50641945 | 883 | |
44fe14ab DC |
884 | \f |
885 | ||
614b3b14 DC |
886 | /* Now, more helper functions for decode_line_1. Some conventions |
887 | that these functions follow: | |
888 | ||
889 | Decode_line_1 typically passes along some of its arguments or local | |
890 | variables to the subfunctions. It passes the variables by | |
891 | reference if they are modified by the subfunction, and by value | |
892 | otherwise. | |
893 | ||
894 | Some of the functions have side effects that don't arise from | |
895 | variables that are passed by reference. In particular, if a | |
896 | function is passed ARGPTR as an argument, it modifies what ARGPTR | |
897 | points to; typically, it advances *ARGPTR past whatever substring | |
898 | it has just looked at. (If it doesn't modify *ARGPTR, then the | |
899 | function gets passed *ARGPTR instead, which is then called ARG: see | |
900 | set_flags, for example.) Also, functions that return a struct | |
901 | symtabs_and_lines may modify CANONICAL, as in the description of | |
902 | decode_line_1. | |
903 | ||
904 | If a function returns a struct symtabs_and_lines, then that struct | |
905 | will immediately make its way up the call chain to be returned by | |
906 | decode_line_1. In particular, all of the functions decode_XXX | |
907 | calculate the appropriate struct symtabs_and_lines, under the | |
908 | assumption that their argument is of the form XXX. */ | |
44fe14ab DC |
909 | |
910 | /* First, some functions to initialize stuff at the beggining of the | |
911 | function. */ | |
912 | ||
913 | static void | |
914 | initialize_defaults (struct symtab **default_symtab, int *default_line) | |
915 | { | |
916 | if (*default_symtab == 0) | |
917 | { | |
918 | /* Use whatever we have for the default source line. We don't use | |
919 | get_current_or_default_symtab_and_line as it can recurse and call | |
920 | us back! */ | |
921 | struct symtab_and_line cursal = | |
922 | get_current_source_symtab_and_line (); | |
923 | ||
924 | *default_symtab = cursal.symtab; | |
925 | *default_line = cursal.line; | |
926 | } | |
927 | } | |
928 | ||
636b1a6d DC |
929 | static void |
930 | set_flags (char *arg, int *is_quoted, char **paren_pointer) | |
931 | { | |
932 | char *ii; | |
933 | int has_if = 0; | |
934 | ||
935 | /* 'has_if' is for the syntax: | |
a04257e6 DC |
936 | (gdb) break foo if (a==b) |
937 | */ | |
636b1a6d DC |
938 | if ((ii = strstr (arg, " if ")) != NULL || |
939 | (ii = strstr (arg, "\tif ")) != NULL || | |
940 | (ii = strstr (arg, " if\t")) != NULL || | |
941 | (ii = strstr (arg, "\tif\t")) != NULL || | |
942 | (ii = strstr (arg, " if(")) != NULL || | |
943 | (ii = strstr (arg, "\tif( ")) != NULL) | |
944 | has_if = 1; | |
a04257e6 DC |
945 | /* Temporarily zap out "if (condition)" to not confuse the |
946 | parenthesis-checking code below. This is undone below. Do not | |
947 | change ii!! */ | |
636b1a6d DC |
948 | if (has_if) |
949 | { | |
950 | *ii = '\0'; | |
951 | } | |
952 | ||
953 | *is_quoted = (*arg | |
954 | && strchr (get_gdb_completer_quote_characters (), | |
955 | *arg) != NULL); | |
956 | ||
957 | *paren_pointer = strchr (arg, '('); | |
958 | if (*paren_pointer != NULL) | |
959 | *paren_pointer = strrchr (*paren_pointer, ')'); | |
960 | ||
a04257e6 DC |
961 | /* Now that we're safely past the paren_pointer check, put back " if |
962 | (condition)" so outer layers can see it. */ | |
636b1a6d DC |
963 | if (has_if) |
964 | *ii = ' '; | |
965 | } | |
966 | ||
44fe14ab DC |
967 | \f |
968 | ||
969 | /* Decode arg of the form *PC. */ | |
970 | ||
971 | static struct symtabs_and_lines | |
972 | decode_indirect (char **argptr) | |
973 | { | |
974 | struct symtabs_and_lines values; | |
975 | CORE_ADDR pc; | |
976 | ||
977 | (*argptr)++; | |
978 | pc = parse_and_eval_address_1 (argptr); | |
979 | ||
980 | values.sals = (struct symtab_and_line *) | |
981 | xmalloc (sizeof (struct symtab_and_line)); | |
982 | ||
983 | values.nelts = 1; | |
984 | values.sals[0] = find_pc_line (pc, 0); | |
985 | values.sals[0].pc = pc; | |
986 | values.sals[0].section = find_pc_overlay (pc); | |
ed0616c6 | 987 | values.sals[0].explicit_pc = 1; |
44fe14ab DC |
988 | |
989 | return values; | |
990 | } | |
413dad4d DC |
991 | |
992 | \f | |
993 | ||
0960f083 DC |
994 | /* Locate the first half of the linespec, ending in a colon, period, |
995 | or whitespace. (More or less.) Also, check to see if *ARGPTR is | |
996 | enclosed in double quotes; if so, set is_quote_enclosed, advance | |
17763fd9 EZ |
997 | ARGPTR past that and zero out the trailing double quote. |
998 | If ARGPTR is just a simple name like "main", p will point to "" | |
999 | at the end. */ | |
0960f083 DC |
1000 | |
1001 | static char * | |
1002 | locate_first_half (char **argptr, int *is_quote_enclosed) | |
1003 | { | |
1004 | char *ii; | |
1005 | char *p, *p1; | |
1006 | int has_comma; | |
1007 | ||
1008 | /* Maybe we were called with a line range FILENAME:LINENUM,FILENAME:LINENUM | |
1009 | and we must isolate the first half. Outer layers will call again later | |
1010 | for the second half. | |
1011 | ||
1012 | Don't count commas that appear in argument lists of overloaded | |
1013 | functions, or in quoted strings. It's stupid to go to this much | |
1014 | trouble when the rest of the function is such an obvious roach hotel. */ | |
1015 | ii = find_toplevel_char (*argptr, ','); | |
1016 | has_comma = (ii != 0); | |
1017 | ||
a04257e6 DC |
1018 | /* Temporarily zap out second half to not confuse the code below. |
1019 | This is undone below. Do not change ii!! */ | |
0960f083 DC |
1020 | if (has_comma) |
1021 | { | |
1022 | *ii = '\0'; | |
1023 | } | |
1024 | ||
a04257e6 DC |
1025 | /* Maybe arg is FILE : LINENUM or FILE : FUNCTION. May also be |
1026 | CLASS::MEMBER, or NAMESPACE::NAME. Look for ':', but ignore | |
1027 | inside of <>. */ | |
0960f083 DC |
1028 | |
1029 | p = *argptr; | |
1030 | if (p[0] == '"') | |
1031 | { | |
1032 | *is_quote_enclosed = 1; | |
1033 | (*argptr)++; | |
1034 | p++; | |
1035 | } | |
1036 | else | |
1037 | *is_quote_enclosed = 0; | |
1038 | for (; *p; p++) | |
1039 | { | |
1040 | if (p[0] == '<') | |
1041 | { | |
1042 | char *temp_end = find_template_name_end (p); | |
1043 | if (!temp_end) | |
8a3fe4f8 | 1044 | error (_("malformed template specification in command")); |
0960f083 DC |
1045 | p = temp_end; |
1046 | } | |
d2630e69 AF |
1047 | /* Check for a colon and a plus or minus and a [ (which |
1048 | indicates an Objective-C method) */ | |
889f28e2 | 1049 | if (is_objc_method_format (p)) |
d2630e69 AF |
1050 | { |
1051 | break; | |
1052 | } | |
a04257e6 DC |
1053 | /* Check for the end of the first half of the linespec. End of |
1054 | line, a tab, a double colon or the last single colon, or a | |
1055 | space. But if enclosed in double quotes we do not break on | |
1056 | enclosed spaces. */ | |
0960f083 DC |
1057 | if (!*p |
1058 | || p[0] == '\t' | |
1059 | || ((p[0] == ':') | |
1060 | && ((p[1] == ':') || (strchr (p + 1, ':') == NULL))) | |
1061 | || ((p[0] == ' ') && !*is_quote_enclosed)) | |
1062 | break; | |
a04257e6 | 1063 | if (p[0] == '.' && strchr (p, ':') == NULL) |
0960f083 | 1064 | { |
a04257e6 DC |
1065 | /* Java qualified method. Find the *last* '.', since the |
1066 | others are package qualifiers. */ | |
0960f083 DC |
1067 | for (p1 = p; *p1; p1++) |
1068 | { | |
1069 | if (*p1 == '.') | |
1070 | p = p1; | |
1071 | } | |
1072 | break; | |
1073 | } | |
1074 | } | |
1075 | while (p[0] == ' ' || p[0] == '\t') | |
1076 | p++; | |
1077 | ||
a04257e6 | 1078 | /* If the closing double quote was left at the end, remove it. */ |
0960f083 DC |
1079 | if (*is_quote_enclosed) |
1080 | { | |
1081 | char *closing_quote = strchr (p - 1, '"'); | |
1082 | if (closing_quote && closing_quote[1] == '\0') | |
1083 | *closing_quote = '\0'; | |
1084 | } | |
1085 | ||
a04257e6 DC |
1086 | /* Now that we've safely parsed the first half, put back ',' so |
1087 | outer layers can see it. */ | |
0960f083 DC |
1088 | if (has_comma) |
1089 | *ii = ','; | |
1090 | ||
1091 | return p; | |
1092 | } | |
1093 | ||
1094 | \f | |
1095 | ||
d2630e69 AF |
1096 | /* Here's where we recognise an Objective-C Selector. An Objective C |
1097 | selector may be implemented by more than one class, therefore it | |
1098 | may represent more than one method/function. This gives us a | |
1099 | situation somewhat analogous to C++ overloading. If there's more | |
1100 | than one method that could represent the selector, then use some of | |
1101 | the existing C++ code to let the user choose one. */ | |
1102 | ||
1103 | struct symtabs_and_lines | |
1104 | decode_objc (char **argptr, int funfirstline, struct symtab *file_symtab, | |
1105 | char ***canonical, char *saved_arg) | |
1106 | { | |
1107 | struct symtabs_and_lines values; | |
1108 | struct symbol **sym_arr = NULL; | |
1109 | struct symbol *sym = NULL; | |
1110 | char *copy = NULL; | |
1111 | struct block *block = NULL; | |
15550d6b MK |
1112 | unsigned i1 = 0; |
1113 | unsigned i2 = 0; | |
d2630e69 AF |
1114 | |
1115 | values.sals = NULL; | |
1116 | values.nelts = 0; | |
1117 | ||
1118 | if (file_symtab != NULL) | |
1119 | block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (file_symtab), STATIC_BLOCK); | |
1120 | else | |
c4fc331b AS |
1121 | { |
1122 | enum language save_language; | |
1123 | ||
1124 | /* get_selected_block can change the current language when there is | |
1125 | no selected frame yet. */ | |
1126 | save_language = current_language->la_language; | |
1127 | block = get_selected_block (0); | |
1128 | set_language (save_language); | |
1129 | } | |
1130 | ||
d2630e69 AF |
1131 | copy = find_imps (file_symtab, block, *argptr, NULL, &i1, &i2); |
1132 | ||
1133 | if (i1 > 0) | |
1134 | { | |
1135 | sym_arr = (struct symbol **) alloca ((i1 + 1) * sizeof (struct symbol *)); | |
46be51c4 | 1136 | sym_arr[i1] = NULL; |
d2630e69 AF |
1137 | |
1138 | copy = find_imps (file_symtab, block, *argptr, sym_arr, &i1, &i2); | |
1139 | *argptr = copy; | |
1140 | } | |
1141 | ||
1142 | /* i1 now represents the TOTAL number of matches found. | |
1143 | i2 represents how many HIGH-LEVEL (struct symbol) matches, | |
1144 | which will come first in the sym_arr array. Any low-level | |
1145 | (minimal_symbol) matches will follow those. */ | |
1146 | ||
1147 | if (i1 == 1) | |
1148 | { | |
1149 | if (i2 > 0) | |
1150 | { | |
1151 | /* Already a struct symbol. */ | |
1152 | sym = sym_arr[0]; | |
1153 | } | |
1154 | else | |
1155 | { | |
1156 | sym = find_pc_function (SYMBOL_VALUE_ADDRESS (sym_arr[0])); | |
1157 | if ((sym != NULL) && strcmp (SYMBOL_LINKAGE_NAME (sym_arr[0]), SYMBOL_LINKAGE_NAME (sym)) != 0) | |
1158 | { | |
8a3fe4f8 | 1159 | warning (_("debugging symbol \"%s\" does not match selector; ignoring"), SYMBOL_LINKAGE_NAME (sym)); |
d2630e69 AF |
1160 | sym = NULL; |
1161 | } | |
1162 | } | |
1163 | ||
1164 | values.sals = (struct symtab_and_line *) xmalloc (sizeof (struct symtab_and_line)); | |
1165 | values.nelts = 1; | |
1166 | ||
1167 | if (sym && SYMBOL_CLASS (sym) == LOC_BLOCK) | |
1168 | { | |
1169 | /* Canonicalize this, so it remains resolved for dylib loads. */ | |
1170 | values.sals[0] = find_function_start_sal (sym, funfirstline); | |
1171 | build_canonical_line_spec (values.sals, SYMBOL_NATURAL_NAME (sym), canonical); | |
1172 | } | |
1173 | else | |
1174 | { | |
69368a60 UW |
1175 | /* The only match was a non-debuggable symbol, which might point |
1176 | to a function descriptor; resolve it to the actual code address | |
1177 | instead. */ | |
1178 | struct minimal_symbol *msymbol = (struct minimal_symbol *)sym_arr[0]; | |
1179 | struct objfile *objfile = msymbol_objfile (msymbol); | |
1180 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
1181 | CORE_ADDR pc = SYMBOL_VALUE_ADDRESS (msymbol); | |
1182 | ||
1183 | pc = gdbarch_convert_from_func_ptr_addr (gdbarch, pc, | |
1184 | ¤t_target); | |
1185 | ||
1186 | init_sal (&values.sals[0]); | |
1187 | values.sals[0].pc = pc; | |
d2630e69 AF |
1188 | } |
1189 | return values; | |
1190 | } | |
1191 | ||
1192 | if (i1 > 1) | |
1193 | { | |
1194 | /* More than one match. The user must choose one or more. */ | |
1195 | return decode_line_2 (sym_arr, i2, funfirstline, canonical); | |
1196 | } | |
1197 | ||
1198 | return values; | |
1199 | } | |
1200 | ||
614b3b14 | 1201 | /* This handles C++ and Java compound data structures. P should point |
17763fd9 EZ |
1202 | at the first component separator, i.e. double-colon or period. As |
1203 | an example, on entrance to this function we could have ARGPTR | |
1204 | pointing to "AAA::inA::fun" and P pointing to "::inA::fun". */ | |
614b3b14 DC |
1205 | |
1206 | static struct symtabs_and_lines | |
1207 | decode_compound (char **argptr, int funfirstline, char ***canonical, | |
f3a5f1de | 1208 | char *saved_arg, char *p, int *not_found_ptr) |
614b3b14 DC |
1209 | { |
1210 | struct symtabs_and_lines values; | |
93d91629 | 1211 | char *p2; |
614b3b14 DC |
1212 | char *saved_arg2 = *argptr; |
1213 | char *temp_end; | |
1214 | struct symbol *sym; | |
614b3b14 DC |
1215 | char *copy; |
1216 | struct symbol *sym_class; | |
614b3b14 DC |
1217 | struct symbol **sym_arr; |
1218 | struct type *t; | |
1219 | ||
17763fd9 EZ |
1220 | /* First check for "global" namespace specification, of the form |
1221 | "::foo". If found, skip over the colons and jump to normal | |
1222 | symbol processing. I.e. the whole line specification starts with | |
1223 | "::" (note the condition that *argptr == p). */ | |
614b3b14 DC |
1224 | if (p[0] == ':' |
1225 | && ((*argptr == p) || (p[-1] == ' ') || (p[-1] == '\t'))) | |
1226 | saved_arg2 += 2; | |
1227 | ||
87b3ede8 DC |
1228 | /* Given our example "AAA::inA::fun", we have two cases to consider: |
1229 | ||
1230 | 1) AAA::inA is the name of a class. In that case, presumably it | |
1231 | has a method called "fun"; we then look up that method using | |
1232 | find_method. | |
1233 | ||
1234 | 2) AAA::inA isn't the name of a class. In that case, either the | |
1235 | user made a typo or AAA::inA is the name of a namespace. | |
1236 | Either way, we just look up AAA::inA::fun with lookup_symbol. | |
1237 | ||
1238 | Thus, our first task is to find everything before the last set of | |
1239 | double-colons and figure out if it's the name of a class. So we | |
1240 | first loop through all of the double-colons. */ | |
614b3b14 | 1241 | |
a04257e6 | 1242 | p2 = p; /* Save for restart. */ |
17763fd9 EZ |
1243 | |
1244 | /* This is very messy. Following the example above we have now the | |
1245 | following pointers: | |
1246 | p -> "::inA::fun" | |
1247 | argptr -> "AAA::inA::fun | |
1248 | saved_arg -> "AAA::inA::fun | |
1249 | saved_arg2 -> "AAA::inA::fun | |
1250 | p2 -> "::inA::fun". */ | |
1251 | ||
1252 | /* In the loop below, with these strings, we'll make 2 passes, each | |
1253 | is marked in comments.*/ | |
1254 | ||
614b3b14 DC |
1255 | while (1) |
1256 | { | |
a04257e6 | 1257 | /* Move pointer up to next possible class/namespace token. */ |
17763fd9 | 1258 | |
a04257e6 | 1259 | p = p2 + 1; /* Restart with old value +1. */ |
17763fd9 EZ |
1260 | |
1261 | /* PASS1: at this point p2->"::inA::fun", so p->":inA::fun", | |
1262 | i.e. if there is a double-colon, p will now point to the | |
1263 | second colon. */ | |
87b3ede8 | 1264 | /* PASS2: p2->"::fun", p->":fun" */ |
17763fd9 | 1265 | |
a04257e6 | 1266 | /* Move pointer ahead to next double-colon. */ |
614b3b14 DC |
1267 | while (*p && (p[0] != ' ') && (p[0] != '\t') && (p[0] != '\'')) |
1268 | { | |
12907978 KS |
1269 | if (current_language->la_language == language_cplus) |
1270 | p += cp_validate_operator (p); | |
1271 | ||
614b3b14 DC |
1272 | if (p[0] == '<') |
1273 | { | |
1274 | temp_end = find_template_name_end (p); | |
1275 | if (!temp_end) | |
8a3fe4f8 | 1276 | error (_("malformed template specification in command")); |
614b3b14 DC |
1277 | p = temp_end; |
1278 | } | |
17763fd9 EZ |
1279 | /* Note that, since, at the start of this loop, p would be |
1280 | pointing to the second colon in a double-colon, we only | |
1281 | satisfy the condition below if there is another | |
1282 | double-colon to the right (after). I.e. there is another | |
1283 | component that can be a class or a namespace. I.e, if at | |
1284 | the beginning of this loop (PASS1), we had | |
1285 | p->":inA::fun", we'll trigger this when p has been | |
1286 | advanced to point to "::fun". */ | |
87b3ede8 | 1287 | /* PASS2: we will not trigger this. */ |
614b3b14 | 1288 | else if ((p[0] == ':') && (p[1] == ':')) |
a04257e6 | 1289 | break; /* Found double-colon. */ |
614b3b14 | 1290 | else |
87b3ede8 DC |
1291 | /* PASS2: We'll keep getting here, until p->"", at which point |
1292 | we exit this loop. */ | |
614b3b14 DC |
1293 | p++; |
1294 | } | |
1295 | ||
1296 | if (*p != ':') | |
17763fd9 EZ |
1297 | break; /* Out of the while (1). This would happen |
1298 | for instance if we have looked up | |
1299 | unsuccessfully all the components of the | |
87b3ede8 | 1300 | string, and p->""(PASS2) */ |
17763fd9 EZ |
1301 | |
1302 | /* We get here if p points to ' ', '\t', '\'', "::" or ""(i.e | |
1303 | string ended). */ | |
1304 | /* Save restart for next time around. */ | |
1305 | p2 = p; | |
1306 | /* Restore argptr as it was on entry to this function. */ | |
1307 | *argptr = saved_arg2; | |
87b3ede8 DC |
1308 | /* PASS1: at this point p->"::fun" argptr->"AAA::inA::fun", |
1309 | p2->"::fun". */ | |
17763fd9 EZ |
1310 | |
1311 | /* All ready for next pass through the loop. */ | |
614b3b14 DC |
1312 | } /* while (1) */ |
1313 | ||
87b3ede8 DC |
1314 | |
1315 | /* Start of lookup in the symbol tables. */ | |
1316 | ||
1317 | /* Lookup in the symbol table the substring between argptr and | |
1318 | p. Note, this call changes the value of argptr. */ | |
1319 | /* Before the call, argptr->"AAA::inA::fun", | |
1320 | p->"", p2->"::fun". After the call: argptr->"fun", p, p2 | |
1321 | unchanged. */ | |
1322 | sym_class = lookup_prefix_sym (argptr, p2); | |
1323 | ||
1324 | /* If sym_class has been found, and if "AAA::inA" is a class, then | |
1325 | we're in case 1 above. So we look up "fun" as a method of that | |
1326 | class. */ | |
1327 | if (sym_class && | |
1328 | (t = check_typedef (SYMBOL_TYPE (sym_class)), | |
1329 | (TYPE_CODE (t) == TYPE_CODE_STRUCT | |
1330 | || TYPE_CODE (t) == TYPE_CODE_UNION))) | |
1331 | { | |
1332 | /* Arg token is not digits => try it as a function name. | |
1333 | Find the next token (everything up to end or next | |
1334 | blank). */ | |
1335 | if (**argptr | |
1336 | && strchr (get_gdb_completer_quote_characters (), | |
1337 | **argptr) != NULL) | |
1338 | { | |
1339 | p = skip_quoted (*argptr); | |
1340 | *argptr = *argptr + 1; | |
1341 | } | |
1342 | else | |
1343 | { | |
1344 | /* At this point argptr->"fun". */ | |
1345 | p = *argptr; | |
1346 | while (*p && *p != ' ' && *p != '\t' && *p != ',' && *p != ':') | |
1347 | p++; | |
1348 | /* At this point p->"". String ended. */ | |
12907978 KS |
1349 | /* Nope, C++ operators could have spaces in them |
1350 | ("foo::operator <" or "foo::operator delete []"). | |
1351 | I apologize, this is a bit hacky... */ | |
1352 | if (current_language->la_language == language_cplus | |
1353 | && *p == ' ' && p - 8 - *argptr + 1 > 0) | |
1354 | { | |
1355 | /* The above loop has already swallowed "operator". */ | |
1356 | p += cp_validate_operator (p - 8) - 8; | |
1357 | } | |
87b3ede8 DC |
1358 | } |
1359 | ||
1360 | /* Allocate our own copy of the substring between argptr and | |
1361 | p. */ | |
1362 | copy = (char *) alloca (p - *argptr + 1); | |
1363 | memcpy (copy, *argptr, p - *argptr); | |
1364 | copy[p - *argptr] = '\0'; | |
1365 | if (p != *argptr | |
1366 | && copy[p - *argptr - 1] | |
1367 | && strchr (get_gdb_completer_quote_characters (), | |
1368 | copy[p - *argptr - 1]) != NULL) | |
1369 | copy[p - *argptr - 1] = '\0'; | |
1370 | ||
1371 | /* At this point copy->"fun", p->"" */ | |
1372 | ||
1373 | /* No line number may be specified. */ | |
1374 | while (*p == ' ' || *p == '\t') | |
1375 | p++; | |
1376 | *argptr = p; | |
1377 | /* At this point arptr->"". */ | |
1378 | ||
1379 | /* Look for copy as a method of sym_class. */ | |
1380 | /* At this point copy->"fun", sym_class is "AAA:inA", | |
1381 | saved_arg->"AAA::inA::fun". This concludes the scanning of | |
1382 | the string for possible components matches. If we find it | |
1383 | here, we return. If not, and we are at the and of the string, | |
1384 | we'll lookup the whole string in the symbol tables. */ | |
1385 | ||
1386 | return find_method (funfirstline, canonical, saved_arg, | |
f3a5f1de | 1387 | copy, t, sym_class, not_found_ptr); |
87b3ede8 DC |
1388 | |
1389 | } /* End if symbol found */ | |
1390 | ||
1391 | ||
1392 | /* We couldn't find a class, so we're in case 2 above. We check the | |
1393 | entire name as a symbol instead. */ | |
1394 | ||
614b3b14 DC |
1395 | copy = (char *) alloca (p - saved_arg2 + 1); |
1396 | memcpy (copy, saved_arg2, p - saved_arg2); | |
a04257e6 DC |
1397 | /* Note: if is_quoted should be true, we snuff out quote here |
1398 | anyway. */ | |
614b3b14 | 1399 | copy[p - saved_arg2] = '\000'; |
a04257e6 | 1400 | /* Set argptr to skip over the name. */ |
614b3b14 | 1401 | *argptr = (*p == '\'') ? p + 1 : p; |
17763fd9 | 1402 | |
614b3b14 | 1403 | /* Look up entire name */ |
2570f2b7 | 1404 | sym = lookup_symbol (copy, 0, VAR_DOMAIN, 0); |
614b3b14 | 1405 | if (sym) |
2570f2b7 | 1406 | return symbol_found (funfirstline, canonical, copy, sym, NULL); |
614b3b14 | 1407 | |
a04257e6 DC |
1408 | /* Couldn't find any interpretation as classes/namespaces, so give |
1409 | up. The quotes are important if copy is empty. */ | |
f3a5f1de KO |
1410 | if (not_found_ptr) |
1411 | *not_found_ptr = 1; | |
614b3b14 DC |
1412 | cplusplus_error (saved_arg, |
1413 | "Can't find member of namespace, class, struct, or union named \"%s\"\n", | |
1414 | copy); | |
1415 | } | |
1416 | ||
93d91629 DC |
1417 | /* Next come some helper functions for decode_compound. */ |
1418 | ||
1419 | /* Return the symbol corresponding to the substring of *ARGPTR ending | |
1420 | at P, allowing whitespace. Also, advance *ARGPTR past the symbol | |
1421 | name in question, the compound object separator ("::" or "."), and | |
17763fd9 EZ |
1422 | whitespace. Note that *ARGPTR is changed whether or not the |
1423 | lookup_symbol call finds anything (i.e we return NULL). As an | |
1424 | example, say ARGPTR is "AAA::inA::fun" and P is "::inA::fun". */ | |
93d91629 DC |
1425 | |
1426 | static struct symbol * | |
1427 | lookup_prefix_sym (char **argptr, char *p) | |
1428 | { | |
1429 | char *p1; | |
1430 | char *copy; | |
1e5a1abc | 1431 | struct symbol *sym; |
93d91629 DC |
1432 | |
1433 | /* Extract the class name. */ | |
1434 | p1 = p; | |
1435 | while (p != *argptr && p[-1] == ' ') | |
1436 | --p; | |
1437 | copy = (char *) alloca (p - *argptr + 1); | |
1438 | memcpy (copy, *argptr, p - *argptr); | |
1439 | copy[p - *argptr] = 0; | |
1440 | ||
17763fd9 | 1441 | /* Discard the class name from the argptr. */ |
93d91629 DC |
1442 | p = p1 + (p1[0] == ':' ? 2 : 1); |
1443 | while (*p == ' ' || *p == '\t') | |
1444 | p++; | |
1445 | *argptr = p; | |
1446 | ||
17763fd9 EZ |
1447 | /* At this point p1->"::inA::fun", p->"inA::fun" copy->"AAA", |
1448 | argptr->"inA::fun" */ | |
1449 | ||
1e5a1abc KS |
1450 | sym = lookup_symbol (copy, 0, STRUCT_DOMAIN, 0); |
1451 | if (sym == NULL) | |
1452 | { | |
1453 | /* Typedefs are in VAR_DOMAIN so the above symbol lookup will | |
1454 | fail when the user attempts to lookup a method of a class | |
1455 | via a typedef'd name (NOT via the class's name, which is already | |
1456 | handled in symbol_matches_domain). So try the lookup again | |
1457 | using VAR_DOMAIN (where typedefs live) and double-check that we | |
1458 | found a struct/class type. */ | |
1459 | struct symbol *s = lookup_symbol (copy, 0, VAR_DOMAIN, 0); | |
1460 | if (s != NULL) | |
1461 | { | |
1462 | struct type *t = SYMBOL_TYPE (s); | |
1463 | CHECK_TYPEDEF (t); | |
1464 | if (TYPE_CODE (t) == TYPE_CODE_STRUCT) | |
1465 | return s; | |
1466 | } | |
1467 | } | |
1468 | ||
1469 | return sym; | |
93d91629 DC |
1470 | } |
1471 | ||
4224873a DC |
1472 | /* This finds the method COPY in the class whose type is T and whose |
1473 | symbol is SYM_CLASS. */ | |
1474 | ||
1475 | static struct symtabs_and_lines | |
1476 | find_method (int funfirstline, char ***canonical, char *saved_arg, | |
f3a5f1de | 1477 | char *copy, struct type *t, struct symbol *sym_class, int *not_found_ptr) |
4224873a DC |
1478 | { |
1479 | struct symtabs_and_lines values; | |
46be51c4 | 1480 | struct symbol *sym = NULL; |
78a11fb4 | 1481 | int i1; /* Counter for the symbol array. */ |
4224873a DC |
1482 | struct symbol **sym_arr = alloca (total_number_of_methods (t) |
1483 | * sizeof (struct symbol *)); | |
1484 | ||
78a11fb4 DC |
1485 | /* Find all methods with a matching name, and put them in |
1486 | sym_arr. */ | |
4224873a | 1487 | |
19ef5c71 | 1488 | i1 = find_methods (t, copy, SYMBOL_LANGUAGE (sym_class), sym_arr); |
4224873a | 1489 | |
4224873a DC |
1490 | if (i1 == 1) |
1491 | { | |
1492 | /* There is exactly one field with that name. */ | |
1493 | sym = sym_arr[0]; | |
1494 | ||
1495 | if (sym && SYMBOL_CLASS (sym) == LOC_BLOCK) | |
1496 | { | |
1497 | values.sals = (struct symtab_and_line *) | |
1498 | xmalloc (sizeof (struct symtab_and_line)); | |
1499 | values.nelts = 1; | |
1500 | values.sals[0] = find_function_start_sal (sym, | |
1501 | funfirstline); | |
1502 | } | |
1503 | else | |
1504 | { | |
15550d6b | 1505 | values.sals = NULL; |
4224873a DC |
1506 | values.nelts = 0; |
1507 | } | |
1508 | return values; | |
1509 | } | |
1510 | if (i1 > 0) | |
1511 | { | |
1512 | /* There is more than one field with that name | |
1513 | (overloaded). Ask the user which one to use. */ | |
1514 | return decode_line_2 (sym_arr, i1, funfirstline, canonical); | |
1515 | } | |
1516 | else | |
1517 | { | |
f3a5f1de KO |
1518 | if (not_found_ptr) |
1519 | *not_found_ptr = 1; | |
12907978 | 1520 | if (copy[0] == '~') |
4224873a DC |
1521 | cplusplus_error (saved_arg, |
1522 | "the class `%s' does not have destructor defined\n", | |
1523 | SYMBOL_PRINT_NAME (sym_class)); | |
1524 | else | |
1525 | cplusplus_error (saved_arg, | |
1526 | "the class %s does not have any method named %s\n", | |
12907978 | 1527 | SYMBOL_PRINT_NAME (sym_class), copy); |
4224873a DC |
1528 | } |
1529 | } | |
1530 | ||
f3c39e76 DC |
1531 | \f |
1532 | ||
1533 | /* Return the symtab associated to the filename given by the substring | |
68219205 JJ |
1534 | of *ARGPTR ending at P, and advance ARGPTR past that filename. If |
1535 | NOT_FOUND_PTR is not null and the source file is not found, store | |
1536 | boolean true at the location pointed to and do not issue an | |
1537 | error message. */ | |
f3c39e76 DC |
1538 | |
1539 | static struct symtab * | |
68219205 JJ |
1540 | symtab_from_filename (char **argptr, char *p, int is_quote_enclosed, |
1541 | int *not_found_ptr) | |
f3c39e76 DC |
1542 | { |
1543 | char *p1; | |
1544 | char *copy; | |
94cd26f8 | 1545 | struct symtab *file_symtab; |
f3c39e76 DC |
1546 | |
1547 | p1 = p; | |
1548 | while (p != *argptr && p[-1] == ' ') | |
1549 | --p; | |
1550 | if ((*p == '"') && is_quote_enclosed) | |
1551 | --p; | |
1552 | copy = (char *) alloca (p - *argptr + 1); | |
1553 | memcpy (copy, *argptr, p - *argptr); | |
a04257e6 | 1554 | /* It may have the ending quote right after the file name. */ |
f3c39e76 DC |
1555 | if (is_quote_enclosed && copy[p - *argptr - 1] == '"') |
1556 | copy[p - *argptr - 1] = 0; | |
1557 | else | |
1558 | copy[p - *argptr] = 0; | |
1559 | ||
1560 | /* Find that file's data. */ | |
94cd26f8 DC |
1561 | file_symtab = lookup_symtab (copy); |
1562 | if (file_symtab == 0) | |
f3c39e76 | 1563 | { |
68219205 | 1564 | if (not_found_ptr) |
05ff989b | 1565 | *not_found_ptr = 1; |
b96e2927 PA |
1566 | if (!have_full_symbols () && !have_partial_symbols ()) |
1567 | throw_error (NOT_FOUND_ERROR, | |
1568 | _("No symbol table is loaded. Use the \"file\" command.")); | |
109c3e39 | 1569 | throw_error (NOT_FOUND_ERROR, _("No source file named %s."), copy); |
f3c39e76 DC |
1570 | } |
1571 | ||
1572 | /* Discard the file name from the arg. */ | |
1573 | p = p1 + 1; | |
1574 | while (*p == ' ' || *p == '\t') | |
1575 | p++; | |
1576 | *argptr = p; | |
1577 | ||
94cd26f8 | 1578 | return file_symtab; |
f3c39e76 DC |
1579 | } |
1580 | ||
84fba31b DC |
1581 | \f |
1582 | ||
1583 | /* This decodes a line where the argument is all digits (possibly | |
1584 | preceded by a sign). Q should point to the end of those digits; | |
1585 | the other arguments are as usual. */ | |
1586 | ||
1587 | static struct symtabs_and_lines | |
1588 | decode_all_digits (char **argptr, struct symtab *default_symtab, | |
1589 | int default_line, char ***canonical, | |
88d262ca | 1590 | struct symtab *file_symtab, char *q) |
84fba31b DC |
1591 | |
1592 | { | |
1593 | struct symtabs_and_lines values; | |
1594 | struct symtab_and_line val; | |
1595 | ||
1596 | enum sign | |
1597 | { | |
1598 | none, plus, minus | |
1599 | } | |
1600 | sign = none; | |
1601 | ||
1602 | /* We might need a canonical line spec if no file was specified. */ | |
46be51c4 | 1603 | int need_canonical = (file_symtab == NULL) ? 1 : 0; |
84fba31b DC |
1604 | |
1605 | init_sal (&val); | |
1606 | ||
6c95b8df PA |
1607 | val.pspace = current_program_space; |
1608 | ||
84fba31b DC |
1609 | /* This is where we need to make sure that we have good defaults. |
1610 | We must guarantee that this section of code is never executed | |
1611 | when we are called with just a function name, since | |
1612 | set_default_source_symtab_and_line uses | |
a04257e6 | 1613 | select_source_symtab that calls us with such an argument. */ |
84fba31b | 1614 | |
88d262ca | 1615 | if (file_symtab == 0 && default_symtab == 0) |
84fba31b | 1616 | { |
a04257e6 | 1617 | /* Make sure we have at least a default source file. */ |
84fba31b DC |
1618 | set_default_source_symtab_and_line (); |
1619 | initialize_defaults (&default_symtab, &default_line); | |
1620 | } | |
1621 | ||
1622 | if (**argptr == '+') | |
1623 | sign = plus, (*argptr)++; | |
1624 | else if (**argptr == '-') | |
1625 | sign = minus, (*argptr)++; | |
1626 | val.line = atoi (*argptr); | |
1627 | switch (sign) | |
1628 | { | |
1629 | case plus: | |
1630 | if (q == *argptr) | |
1631 | val.line = 5; | |
88d262ca | 1632 | if (file_symtab == 0) |
84fba31b DC |
1633 | val.line = default_line + val.line; |
1634 | break; | |
1635 | case minus: | |
1636 | if (q == *argptr) | |
1637 | val.line = 15; | |
88d262ca | 1638 | if (file_symtab == 0) |
84fba31b DC |
1639 | val.line = default_line - val.line; |
1640 | else | |
1641 | val.line = 1; | |
1642 | break; | |
1643 | case none: | |
1644 | break; /* No need to adjust val.line. */ | |
1645 | } | |
1646 | ||
1647 | while (*q == ' ' || *q == '\t') | |
1648 | q++; | |
1649 | *argptr = q; | |
88d262ca DC |
1650 | if (file_symtab == 0) |
1651 | file_symtab = default_symtab; | |
84fba31b DC |
1652 | |
1653 | /* It is possible that this source file has more than one symtab, | |
1654 | and that the new line number specification has moved us from the | |
88d262ca DC |
1655 | default (in file_symtab) to a new one. */ |
1656 | val.symtab = find_line_symtab (file_symtab, val.line, NULL, NULL); | |
84fba31b | 1657 | if (val.symtab == 0) |
88d262ca | 1658 | val.symtab = file_symtab; |
84fba31b | 1659 | |
6c95b8df | 1660 | val.pspace = SYMTAB_PSPACE (val.symtab); |
84fba31b DC |
1661 | val.pc = 0; |
1662 | values.sals = (struct symtab_and_line *) | |
1663 | xmalloc (sizeof (struct symtab_and_line)); | |
1664 | values.sals[0] = val; | |
1665 | values.nelts = 1; | |
1666 | if (need_canonical) | |
1667 | build_canonical_line_spec (values.sals, NULL, canonical); | |
ed0616c6 | 1668 | values.sals[0].explicit_line = 1; |
84fba31b DC |
1669 | return values; |
1670 | } | |
f3c39e76 | 1671 | |
614b3b14 DC |
1672 | \f |
1673 | ||
14e91ac5 DC |
1674 | /* Decode a linespec starting with a dollar sign. */ |
1675 | ||
1676 | static struct symtabs_and_lines | |
1677 | decode_dollar (char *copy, int funfirstline, struct symtab *default_symtab, | |
88d262ca | 1678 | char ***canonical, struct symtab *file_symtab) |
14e91ac5 | 1679 | { |
4fa62494 | 1680 | LONGEST valx; |
14e91ac5 DC |
1681 | int index = 0; |
1682 | int need_canonical = 0; | |
1683 | struct symtabs_and_lines values; | |
1684 | struct symtab_and_line val; | |
1685 | char *p; | |
1686 | struct symbol *sym; | |
14e91ac5 DC |
1687 | struct minimal_symbol *msymbol; |
1688 | ||
1689 | p = (copy[1] == '$') ? copy + 2 : copy + 1; | |
1690 | while (*p >= '0' && *p <= '9') | |
1691 | p++; | |
a04257e6 | 1692 | if (!*p) /* Reached end of token without hitting non-digit. */ |
14e91ac5 | 1693 | { |
a04257e6 | 1694 | /* We have a value history reference. */ |
4fa62494 | 1695 | struct value *val_history; |
14e91ac5 | 1696 | sscanf ((copy[1] == '$') ? copy + 2 : copy + 1, "%d", &index); |
4fa62494 UW |
1697 | val_history = access_value_history ((copy[1] == '$') ? -index : index); |
1698 | if (TYPE_CODE (value_type (val_history)) != TYPE_CODE_INT) | |
8a3fe4f8 | 1699 | error (_("History values used in line specs must have integer values.")); |
4fa62494 | 1700 | valx = value_as_long (val_history); |
14e91ac5 DC |
1701 | } |
1702 | else | |
1703 | { | |
1704 | /* Not all digits -- may be user variable/function or a | |
a04257e6 | 1705 | convenience variable. */ |
14e91ac5 | 1706 | |
a04257e6 | 1707 | /* Look up entire name as a symbol first. */ |
2570f2b7 | 1708 | sym = lookup_symbol (copy, 0, VAR_DOMAIN, 0); |
46be51c4 | 1709 | file_symtab = (struct symtab *) NULL; |
14e91ac5 DC |
1710 | need_canonical = 1; |
1711 | /* Symbol was found --> jump to normal symbol processing. */ | |
1712 | if (sym) | |
2570f2b7 | 1713 | return symbol_found (funfirstline, canonical, copy, sym, NULL); |
14e91ac5 | 1714 | |
a04257e6 | 1715 | /* If symbol was not found, look in minimal symbol tables. */ |
14e91ac5 | 1716 | msymbol = lookup_minimal_symbol (copy, NULL, NULL); |
a04257e6 | 1717 | /* Min symbol was found --> jump to minsym processing. */ |
14e91ac5 DC |
1718 | if (msymbol) |
1719 | return minsym_found (funfirstline, msymbol); | |
1720 | ||
a04257e6 | 1721 | /* Not a user variable or function -- must be convenience variable. */ |
4fa62494 | 1722 | if (!get_internalvar_integer (lookup_internalvar (copy + 1), &valx)) |
8a3fe4f8 | 1723 | error (_("Convenience variables used in line specs must have integer values.")); |
14e91ac5 DC |
1724 | } |
1725 | ||
1726 | init_sal (&val); | |
1727 | ||
a04257e6 | 1728 | /* Either history value or convenience value from above, in valx. */ |
88d262ca | 1729 | val.symtab = file_symtab ? file_symtab : default_symtab; |
4fa62494 | 1730 | val.line = valx; |
14e91ac5 | 1731 | val.pc = 0; |
6c95b8df | 1732 | val.pspace = current_program_space; |
14e91ac5 DC |
1733 | |
1734 | values.sals = (struct symtab_and_line *) xmalloc (sizeof val); | |
1735 | values.sals[0] = val; | |
1736 | values.nelts = 1; | |
1737 | ||
1738 | if (need_canonical) | |
1739 | build_canonical_line_spec (values.sals, NULL, canonical); | |
1740 | ||
1741 | return values; | |
1742 | } | |
1743 | ||
bca02a8a DC |
1744 | \f |
1745 | ||
88d262ca | 1746 | /* Decode a linespec that's a variable. If FILE_SYMTAB is non-NULL, |
68219205 JJ |
1747 | look in that symtab's static variables first. If NOT_FOUND_PTR is not NULL and |
1748 | the function cannot be found, store boolean true in the location pointed to | |
1749 | and do not issue an error message. */ | |
bca02a8a DC |
1750 | |
1751 | static struct symtabs_and_lines | |
1752 | decode_variable (char *copy, int funfirstline, char ***canonical, | |
68219205 | 1753 | struct symtab *file_symtab, int *not_found_ptr) |
bca02a8a DC |
1754 | { |
1755 | struct symbol *sym; | |
bca02a8a DC |
1756 | |
1757 | struct minimal_symbol *msymbol; | |
1758 | ||
1759 | sym = lookup_symbol (copy, | |
88d262ca DC |
1760 | (file_symtab |
1761 | ? BLOCKVECTOR_BLOCK (BLOCKVECTOR (file_symtab), | |
1762 | STATIC_BLOCK) | |
bca02a8a | 1763 | : get_selected_block (0)), |
2570f2b7 | 1764 | VAR_DOMAIN, 0); |
bca02a8a DC |
1765 | |
1766 | if (sym != NULL) | |
2570f2b7 | 1767 | return symbol_found (funfirstline, canonical, copy, sym, file_symtab); |
bca02a8a DC |
1768 | |
1769 | msymbol = lookup_minimal_symbol (copy, NULL, NULL); | |
1770 | ||
1771 | if (msymbol != NULL) | |
1772 | return minsym_found (funfirstline, msymbol); | |
1773 | ||
68219205 | 1774 | if (not_found_ptr) |
05ff989b | 1775 | *not_found_ptr = 1; |
b96e2927 PA |
1776 | |
1777 | if (!have_full_symbols () | |
1778 | && !have_partial_symbols () | |
1779 | && !have_minimal_symbols ()) | |
1780 | throw_error (NOT_FOUND_ERROR, | |
1781 | _("No symbol table is loaded. Use the \"file\" command.")); | |
109c3e39 | 1782 | throw_error (NOT_FOUND_ERROR, _("Function \"%s\" not defined."), copy); |
bca02a8a DC |
1783 | } |
1784 | ||
1785 | ||
14e91ac5 DC |
1786 | \f |
1787 | ||
413dad4d DC |
1788 | /* Now come some functions that are called from multiple places within |
1789 | decode_line_1. */ | |
1790 | ||
1791 | /* We've found a symbol SYM to associate with our linespec; build a | |
1792 | corresponding struct symtabs_and_lines. */ | |
1793 | ||
1794 | static struct symtabs_and_lines | |
1795 | symbol_found (int funfirstline, char ***canonical, char *copy, | |
2570f2b7 | 1796 | struct symbol *sym, struct symtab *file_symtab) |
413dad4d DC |
1797 | { |
1798 | struct symtabs_and_lines values; | |
1799 | ||
1800 | if (SYMBOL_CLASS (sym) == LOC_BLOCK) | |
50641945 | 1801 | { |
413dad4d | 1802 | /* Arg is the name of a function */ |
50641945 FN |
1803 | values.sals = (struct symtab_and_line *) |
1804 | xmalloc (sizeof (struct symtab_and_line)); | |
413dad4d DC |
1805 | values.sals[0] = find_function_start_sal (sym, funfirstline); |
1806 | values.nelts = 1; | |
1807 | ||
1808 | /* Don't use the SYMBOL_LINE; if used at all it points to | |
1809 | the line containing the parameters or thereabouts, not | |
1810 | the first line of code. */ | |
1811 | ||
1812 | /* We might need a canonical line spec if it is a static | |
1813 | function. */ | |
88d262ca | 1814 | if (file_symtab == 0) |
50641945 | 1815 | { |
2570f2b7 | 1816 | struct blockvector *bv = BLOCKVECTOR (SYMBOL_SYMTAB (sym)); |
413dad4d | 1817 | struct block *b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); |
176620f1 | 1818 | if (lookup_block_symbol (b, copy, NULL, VAR_DOMAIN) != NULL) |
413dad4d | 1819 | build_canonical_line_spec (values.sals, copy, canonical); |
50641945 | 1820 | } |
50641945 FN |
1821 | return values; |
1822 | } | |
413dad4d DC |
1823 | else |
1824 | { | |
1825 | if (funfirstline) | |
8a3fe4f8 | 1826 | error (_("\"%s\" is not a function"), copy); |
413dad4d DC |
1827 | else if (SYMBOL_LINE (sym) != 0) |
1828 | { | |
1829 | /* We know its line number. */ | |
1830 | values.sals = (struct symtab_and_line *) | |
1831 | xmalloc (sizeof (struct symtab_and_line)); | |
1832 | values.nelts = 1; | |
1833 | memset (&values.sals[0], 0, sizeof (values.sals[0])); | |
2570f2b7 | 1834 | values.sals[0].symtab = SYMBOL_SYMTAB (sym); |
413dad4d DC |
1835 | values.sals[0].line = SYMBOL_LINE (sym); |
1836 | return values; | |
1837 | } | |
1838 | else | |
1839 | /* This can happen if it is compiled with a compiler which doesn't | |
1840 | put out line numbers for variables. */ | |
1841 | /* FIXME: Shouldn't we just set .line and .symtab to zero | |
1842 | and return? For example, "info line foo" could print | |
1843 | the address. */ | |
8a3fe4f8 | 1844 | error (_("Line number not known for symbol \"%s\""), copy); |
413dad4d DC |
1845 | } |
1846 | } | |
50641945 | 1847 | |
413dad4d DC |
1848 | /* We've found a minimal symbol MSYMBOL to associate with our |
1849 | linespec; build a corresponding struct symtabs_and_lines. */ | |
50641945 | 1850 | |
413dad4d DC |
1851 | static struct symtabs_and_lines |
1852 | minsym_found (int funfirstline, struct minimal_symbol *msymbol) | |
1853 | { | |
bccdca4a UW |
1854 | struct objfile *objfile = msymbol_objfile (msymbol); |
1855 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
413dad4d | 1856 | struct symtabs_and_lines values; |
bccdca4a | 1857 | CORE_ADDR pc; |
413dad4d DC |
1858 | |
1859 | values.sals = (struct symtab_and_line *) | |
1860 | xmalloc (sizeof (struct symtab_and_line)); | |
1861 | values.sals[0] = find_pc_sect_line (SYMBOL_VALUE_ADDRESS (msymbol), | |
714835d5 UW |
1862 | (struct obj_section *) 0, 0); |
1863 | values.sals[0].section = SYMBOL_OBJ_SECTION (msymbol); | |
bccdca4a UW |
1864 | |
1865 | /* The minimal symbol might point to a function descriptor; | |
1866 | resolve it to the actual code address instead. */ | |
1867 | pc = gdbarch_convert_from_func_ptr_addr (gdbarch, | |
1868 | values.sals[0].pc, | |
1869 | ¤t_target); | |
1870 | if (pc != values.sals[0].pc) | |
1871 | values.sals[0] = find_pc_sect_line (pc, NULL, 0); | |
1872 | ||
413dad4d DC |
1873 | if (funfirstline) |
1874 | { | |
e48883f7 DJ |
1875 | struct symtab_and_line sal; |
1876 | ||
bccdca4a UW |
1877 | values.sals[0].pc = find_function_start_pc (gdbarch, |
1878 | values.sals[0].pc, | |
1879 | values.sals[0].section); | |
e48883f7 DJ |
1880 | |
1881 | sal = find_pc_sect_line (values.sals[0].pc, values.sals[0].section, 0); | |
1882 | ||
1883 | /* Check if SKIP_PROLOGUE left us in mid-line, and the next | |
1884 | line is still part of the same function. If there is no | |
1885 | line information here, sal.pc will be the passed in PC. */ | |
1886 | if (sal.pc != values.sals[0].pc | |
1887 | && (lookup_minimal_symbol_by_pc_section (values.sals[0].pc, | |
1888 | values.sals[0].section) | |
1889 | == lookup_minimal_symbol_by_pc_section (sal.end, | |
1890 | values.sals[0].section))) | |
1891 | /* Recalculate the line number (might not be N+1). */ | |
1892 | values.sals[0] = find_pc_sect_line (sal.end, values.sals[0].section, 0); | |
413dad4d | 1893 | } |
e48883f7 | 1894 | |
413dad4d DC |
1895 | values.nelts = 1; |
1896 | return values; | |
50641945 | 1897 | } |