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 | 4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, |
7b6bb8da | 5 | 2009, 2010, 2011 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" |
94af9270 | 43 | #include "arch-utils.h" |
50641945 FN |
44 | |
45 | /* We share this one with symtab.c, but it is not exported widely. */ | |
46 | ||
47 | extern char *operator_chars (char *, char **); | |
48 | ||
50641945 FN |
49 | /* Prototypes for local functions */ |
50 | ||
44fe14ab DC |
51 | static void initialize_defaults (struct symtab **default_symtab, |
52 | int *default_line); | |
53 | ||
54 | static struct symtabs_and_lines decode_indirect (char **argptr); | |
55 | ||
0960f083 DC |
56 | static char *locate_first_half (char **argptr, int *is_quote_enclosed); |
57 | ||
d2630e69 AF |
58 | static struct symtabs_and_lines decode_objc (char **argptr, |
59 | int funfirstline, | |
60 | struct symtab *file_symtab, | |
61 | char ***canonical, | |
62 | char *saved_arg); | |
63 | ||
614b3b14 DC |
64 | static struct symtabs_and_lines decode_compound (char **argptr, |
65 | int funfirstline, | |
66 | char ***canonical, | |
67 | char *saved_arg, | |
f3a5f1de KO |
68 | char *p, |
69 | int *not_found_ptr); | |
614b3b14 | 70 | |
93d91629 DC |
71 | static struct symbol *lookup_prefix_sym (char **argptr, char *p); |
72 | ||
4224873a DC |
73 | static struct symtabs_and_lines find_method (int funfirstline, |
74 | char ***canonical, | |
75 | char *saved_arg, | |
76 | char *copy, | |
77 | struct type *t, | |
f3a5f1de KO |
78 | struct symbol *sym_class, |
79 | int *not_found_ptr); | |
4224873a | 80 | |
c25c4a8b JK |
81 | static void cplusplus_error (const char *name, const char *fmt, ...) |
82 | ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (2, 3); | |
50641945 FN |
83 | |
84 | static int total_number_of_methods (struct type *type); | |
85 | ||
53c5240f PA |
86 | static int find_methods (struct type *, char *, |
87 | enum language, struct symbol **); | |
50641945 | 88 | |
aee8d8ba | 89 | static int add_matching_methods (int method_counter, struct type *t, |
53c5240f | 90 | enum language language, |
aee8d8ba DC |
91 | struct symbol **sym_arr); |
92 | ||
93 | static int add_constructors (int method_counter, struct type *t, | |
53c5240f | 94 | enum language language, |
aee8d8ba DC |
95 | struct symbol **sym_arr); |
96 | ||
50641945 FN |
97 | static void build_canonical_line_spec (struct symtab_and_line *, |
98 | char *, char ***); | |
99 | ||
100 | static char *find_toplevel_char (char *s, char c); | |
101 | ||
889f28e2 AF |
102 | static int is_objc_method_format (const char *s); |
103 | ||
50641945 FN |
104 | static struct symtabs_and_lines decode_line_2 (struct symbol *[], |
105 | int, int, char ***); | |
106 | ||
f3c39e76 | 107 | static struct symtab *symtab_from_filename (char **argptr, |
68219205 JJ |
108 | char *p, int is_quote_enclosed, |
109 | int *not_found_ptr); | |
f3c39e76 | 110 | |
84fba31b DC |
111 | static struct |
112 | symtabs_and_lines decode_all_digits (char **argptr, | |
113 | struct symtab *default_symtab, | |
114 | int default_line, | |
115 | char ***canonical, | |
88d262ca | 116 | struct symtab *file_symtab, |
84fba31b DC |
117 | char *q); |
118 | ||
14e91ac5 DC |
119 | static struct symtabs_and_lines decode_dollar (char *copy, |
120 | int funfirstline, | |
121 | struct symtab *default_symtab, | |
122 | char ***canonical, | |
88d262ca | 123 | struct symtab *file_symtab); |
14e91ac5 | 124 | |
0f5238ed TT |
125 | static int decode_label (char *copy, char ***canonical, |
126 | struct symtabs_and_lines *result); | |
127 | ||
bca02a8a DC |
128 | static struct symtabs_and_lines decode_variable (char *copy, |
129 | int funfirstline, | |
130 | char ***canonical, | |
68219205 JJ |
131 | struct symtab *file_symtab, |
132 | int *not_found_ptr); | |
bca02a8a | 133 | |
413dad4d DC |
134 | static struct |
135 | symtabs_and_lines symbol_found (int funfirstline, | |
136 | char ***canonical, | |
137 | char *copy, | |
138 | struct symbol *sym, | |
2570f2b7 | 139 | struct symtab *file_symtab); |
413dad4d DC |
140 | |
141 | static struct | |
142 | symtabs_and_lines minsym_found (int funfirstline, | |
143 | struct minimal_symbol *msymbol); | |
144 | ||
50641945 FN |
145 | /* Helper functions. */ |
146 | ||
255e7dbf AC |
147 | /* Issue a helpful hint on using the command completion feature on |
148 | single quoted demangled C++ symbols as part of the completion | |
149 | error. */ | |
50641945 | 150 | |
c25c4a8b | 151 | static void |
255e7dbf | 152 | cplusplus_error (const char *name, const char *fmt, ...) |
50641945 | 153 | { |
255e7dbf | 154 | struct ui_file *tmp_stream; |
f3a5f1de | 155 | char *message; |
e0881a8e | 156 | |
255e7dbf AC |
157 | tmp_stream = mem_fileopen (); |
158 | make_cleanup_ui_file_delete (tmp_stream); | |
159 | ||
160 | { | |
161 | va_list args; | |
e0881a8e | 162 | |
255e7dbf AC |
163 | va_start (args, fmt); |
164 | vfprintf_unfiltered (tmp_stream, fmt, args); | |
165 | va_end (args); | |
166 | } | |
167 | ||
50641945 FN |
168 | while (*name == '\'') |
169 | name++; | |
255e7dbf AC |
170 | fprintf_unfiltered (tmp_stream, |
171 | ("Hint: try '%s<TAB> or '%s<ESC-?>\n" | |
172 | "(Note leading single quote.)"), | |
173 | name, name); | |
f3a5f1de | 174 | |
759ef836 PA |
175 | message = ui_file_xstrdup (tmp_stream, NULL); |
176 | make_cleanup (xfree, message); | |
177 | throw_error (NOT_FOUND_ERROR, "%s", message); | |
50641945 FN |
178 | } |
179 | ||
180 | /* Return the number of methods described for TYPE, including the | |
181 | methods from types it derives from. This can't be done in the symbol | |
182 | reader because the type of the baseclass might still be stubbed | |
183 | when the definition of the derived class is parsed. */ | |
184 | ||
185 | static int | |
186 | total_number_of_methods (struct type *type) | |
187 | { | |
188 | int n; | |
189 | int count; | |
190 | ||
191 | CHECK_TYPEDEF (type); | |
b4ba55a1 | 192 | if (! HAVE_CPLUS_STRUCT (type)) |
50641945 FN |
193 | return 0; |
194 | count = TYPE_NFN_FIELDS_TOTAL (type); | |
195 | ||
196 | for (n = 0; n < TYPE_N_BASECLASSES (type); n++) | |
197 | count += total_number_of_methods (TYPE_BASECLASS (type, n)); | |
198 | ||
199 | return count; | |
200 | } | |
201 | ||
202 | /* Recursive helper function for decode_line_1. | |
203 | Look for methods named NAME in type T. | |
204 | Return number of matches. | |
205 | Put matches in SYM_ARR, which should have been allocated with | |
206 | a size of total_number_of_methods (T) * sizeof (struct symbol *). | |
207 | Note that this function is g++ specific. */ | |
208 | ||
209 | static int | |
53c5240f PA |
210 | find_methods (struct type *t, char *name, enum language language, |
211 | struct symbol **sym_arr) | |
50641945 FN |
212 | { |
213 | int i1 = 0; | |
214 | int ibase; | |
50641945 FN |
215 | char *class_name = type_name_no_tag (t); |
216 | ||
217 | /* Ignore this class if it doesn't have a name. This is ugly, but | |
218 | unless we figure out how to get the physname without the name of | |
219 | the class, then the loop can't do any good. */ | |
220 | if (class_name | |
53c5240f | 221 | && (lookup_symbol_in_language (class_name, (struct block *) NULL, |
2570f2b7 | 222 | STRUCT_DOMAIN, language, (int *) NULL))) |
50641945 FN |
223 | { |
224 | int method_counter; | |
5c717440 | 225 | int name_len = strlen (name); |
50641945 | 226 | |
8bd1f2c6 | 227 | CHECK_TYPEDEF (t); |
50641945 FN |
228 | |
229 | /* Loop over each method name. At this level, all overloads of a name | |
230 | are counted as a single name. There is an inner loop which loops over | |
231 | each overload. */ | |
232 | ||
233 | for (method_counter = TYPE_NFN_FIELDS (t) - 1; | |
234 | method_counter >= 0; | |
235 | --method_counter) | |
236 | { | |
50641945 FN |
237 | char *method_name = TYPE_FN_FIELDLIST_NAME (t, method_counter); |
238 | char dem_opname[64]; | |
239 | ||
240 | if (strncmp (method_name, "__", 2) == 0 || | |
241 | strncmp (method_name, "op", 2) == 0 || | |
242 | strncmp (method_name, "type", 4) == 0) | |
243 | { | |
244 | if (cplus_demangle_opname (method_name, dem_opname, DMGL_ANSI)) | |
245 | method_name = dem_opname; | |
246 | else if (cplus_demangle_opname (method_name, dem_opname, 0)) | |
247 | method_name = dem_opname; | |
248 | } | |
249 | ||
13b57657 | 250 | if (strcmp_iw (name, method_name) == 0) |
50641945 | 251 | /* Find all the overloaded methods with that name. */ |
53c5240f | 252 | i1 += add_matching_methods (method_counter, t, language, |
aee8d8ba | 253 | sym_arr + i1); |
5c717440 DJ |
254 | else if (strncmp (class_name, name, name_len) == 0 |
255 | && (class_name[name_len] == '\0' | |
256 | || class_name[name_len] == '<')) | |
53c5240f | 257 | i1 += add_constructors (method_counter, t, language, |
aee8d8ba | 258 | sym_arr + i1); |
50641945 FN |
259 | } |
260 | } | |
261 | ||
262 | /* Only search baseclasses if there is no match yet, since names in | |
263 | derived classes override those in baseclasses. | |
264 | ||
265 | FIXME: The above is not true; it is only true of member functions | |
266 | if they have the same number of arguments (??? - section 13.1 of the | |
267 | ARM says the function members are not in the same scope but doesn't | |
268 | really spell out the rules in a way I understand. In any case, if | |
269 | the number of arguments differ this is a case in which we can overload | |
270 | rather than hiding without any problem, and gcc 2.4.5 does overload | |
271 | rather than hiding in this case). */ | |
272 | ||
273 | if (i1 == 0) | |
274 | for (ibase = 0; ibase < TYPE_N_BASECLASSES (t); ibase++) | |
53c5240f PA |
275 | i1 += find_methods (TYPE_BASECLASS (t, ibase), name, |
276 | language, sym_arr + i1); | |
50641945 FN |
277 | |
278 | return i1; | |
279 | } | |
280 | ||
aee8d8ba DC |
281 | /* Add the symbols associated to methods of the class whose type is T |
282 | and whose name matches the method indexed by METHOD_COUNTER in the | |
283 | array SYM_ARR. Return the number of methods added. */ | |
284 | ||
285 | static int | |
286 | add_matching_methods (int method_counter, struct type *t, | |
53c5240f | 287 | enum language language, struct symbol **sym_arr) |
aee8d8ba DC |
288 | { |
289 | int field_counter; | |
290 | int i1 = 0; | |
291 | ||
292 | for (field_counter = TYPE_FN_FIELDLIST_LENGTH (t, method_counter) - 1; | |
293 | field_counter >= 0; | |
294 | --field_counter) | |
295 | { | |
296 | struct fn_field *f; | |
297 | char *phys_name; | |
298 | ||
299 | f = TYPE_FN_FIELDLIST1 (t, method_counter); | |
300 | ||
301 | if (TYPE_FN_FIELD_STUB (f, field_counter)) | |
302 | { | |
303 | char *tmp_name; | |
304 | ||
305 | tmp_name = gdb_mangle_name (t, | |
306 | method_counter, | |
307 | field_counter); | |
308 | phys_name = alloca (strlen (tmp_name) + 1); | |
309 | strcpy (phys_name, tmp_name); | |
310 | xfree (tmp_name); | |
311 | } | |
312 | else | |
313 | phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter); | |
53c5240f | 314 | |
53c5240f | 315 | sym_arr[i1] = lookup_symbol_in_language (phys_name, |
aee8d8ba | 316 | NULL, VAR_DOMAIN, |
53c5240f | 317 | language, |
2570f2b7 | 318 | (int *) NULL); |
aee8d8ba DC |
319 | if (sym_arr[i1]) |
320 | i1++; | |
321 | else | |
322 | { | |
323 | /* This error message gets printed, but the method | |
324 | still seems to be found | |
325 | fputs_filtered("(Cannot find method ", gdb_stdout); | |
326 | fprintf_symbol_filtered (gdb_stdout, phys_name, | |
327 | language_cplus, | |
328 | DMGL_PARAMS | DMGL_ANSI); | |
329 | fputs_filtered(" - possibly inlined.)\n", gdb_stdout); | |
330 | */ | |
331 | } | |
332 | } | |
333 | ||
334 | return i1; | |
335 | } | |
336 | ||
337 | /* Add the symbols associated to constructors of the class whose type | |
338 | is CLASS_TYPE and which are indexed by by METHOD_COUNTER to the | |
339 | array SYM_ARR. Return the number of methods added. */ | |
340 | ||
341 | static int | |
342 | add_constructors (int method_counter, struct type *t, | |
53c5240f | 343 | enum language language, struct symbol **sym_arr) |
aee8d8ba DC |
344 | { |
345 | int field_counter; | |
346 | int i1 = 0; | |
347 | ||
348 | /* For GCC 3.x and stabs, constructors and destructors | |
349 | have names like __base_ctor and __complete_dtor. | |
350 | Check the physname for now if we're looking for a | |
351 | constructor. */ | |
352 | for (field_counter | |
353 | = TYPE_FN_FIELDLIST_LENGTH (t, method_counter) - 1; | |
354 | field_counter >= 0; | |
355 | --field_counter) | |
356 | { | |
357 | struct fn_field *f; | |
358 | char *phys_name; | |
53c5240f | 359 | |
aee8d8ba DC |
360 | f = TYPE_FN_FIELDLIST1 (t, method_counter); |
361 | ||
362 | /* GCC 3.x will never produce stabs stub methods, so | |
363 | we don't need to handle this case. */ | |
364 | if (TYPE_FN_FIELD_STUB (f, field_counter)) | |
365 | continue; | |
366 | phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter); | |
367 | if (! is_constructor_name (phys_name)) | |
368 | continue; | |
369 | ||
370 | /* If this method is actually defined, include it in the | |
371 | list. */ | |
53c5240f | 372 | sym_arr[i1] = lookup_symbol_in_language (phys_name, |
aee8d8ba | 373 | NULL, VAR_DOMAIN, |
53c5240f | 374 | language, |
2570f2b7 | 375 | (int *) NULL); |
aee8d8ba DC |
376 | if (sym_arr[i1]) |
377 | i1++; | |
378 | } | |
379 | ||
380 | return i1; | |
381 | } | |
382 | ||
50641945 FN |
383 | /* Helper function for decode_line_1. |
384 | Build a canonical line spec in CANONICAL if it is non-NULL and if | |
385 | the SAL has a symtab. | |
386 | If SYMNAME is non-NULL the canonical line spec is `filename:symname'. | |
387 | If SYMNAME is NULL the line number from SAL is used and the canonical | |
388 | line spec is `filename:linenum'. */ | |
389 | ||
390 | static void | |
391 | build_canonical_line_spec (struct symtab_and_line *sal, char *symname, | |
392 | char ***canonical) | |
393 | { | |
394 | char **canonical_arr; | |
395 | char *canonical_name; | |
396 | char *filename; | |
397 | struct symtab *s = sal->symtab; | |
398 | ||
399 | if (s == (struct symtab *) NULL | |
400 | || s->filename == (char *) NULL | |
401 | || canonical == (char ***) NULL) | |
402 | return; | |
403 | ||
404 | canonical_arr = (char **) xmalloc (sizeof (char *)); | |
405 | *canonical = canonical_arr; | |
406 | ||
407 | filename = s->filename; | |
408 | if (symname != NULL) | |
409 | { | |
410 | canonical_name = xmalloc (strlen (filename) + strlen (symname) + 2); | |
411 | sprintf (canonical_name, "%s:%s", filename, symname); | |
412 | } | |
413 | else | |
414 | { | |
415 | canonical_name = xmalloc (strlen (filename) + 30); | |
416 | sprintf (canonical_name, "%s:%d", filename, sal->line); | |
417 | } | |
418 | canonical_arr[0] = canonical_name; | |
419 | } | |
420 | ||
421 | ||
422 | ||
423 | /* Find an instance of the character C in the string S that is outside | |
424 | of all parenthesis pairs, single-quoted strings, and double-quoted | |
8120c9d5 EZ |
425 | strings. Also, ignore the char within a template name, like a ',' |
426 | within foo<int, int>. */ | |
427 | ||
50641945 FN |
428 | static char * |
429 | find_toplevel_char (char *s, char c) | |
430 | { | |
431 | int quoted = 0; /* zero if we're not in quotes; | |
432 | '"' if we're in a double-quoted string; | |
433 | '\'' if we're in a single-quoted string. */ | |
a04257e6 | 434 | int depth = 0; /* Number of unclosed parens we've seen. */ |
50641945 FN |
435 | char *scan; |
436 | ||
437 | for (scan = s; *scan; scan++) | |
438 | { | |
439 | if (quoted) | |
440 | { | |
441 | if (*scan == quoted) | |
442 | quoted = 0; | |
443 | else if (*scan == '\\' && *(scan + 1)) | |
444 | scan++; | |
445 | } | |
446 | else if (*scan == c && ! quoted && depth == 0) | |
447 | return scan; | |
448 | else if (*scan == '"' || *scan == '\'') | |
449 | quoted = *scan; | |
8120c9d5 | 450 | else if (*scan == '(' || *scan == '<') |
50641945 | 451 | depth++; |
8120c9d5 | 452 | else if ((*scan == ')' || *scan == '>') && depth > 0) |
50641945 FN |
453 | depth--; |
454 | } | |
455 | ||
456 | return 0; | |
457 | } | |
458 | ||
889f28e2 AF |
459 | /* Determines if the gives string corresponds to an Objective-C method |
460 | representation, such as -[Foo bar:] or +[Foo bar]. Objective-C symbols | |
461 | are allowed to have spaces and parentheses in them. */ | |
462 | ||
463 | static int | |
464 | is_objc_method_format (const char *s) | |
465 | { | |
466 | if (s == NULL || *s == '\0') | |
467 | return 0; | |
468 | /* Handle arguments with the format FILENAME:SYMBOL. */ | |
469 | if ((s[0] == ':') && (strchr ("+-", s[1]) != NULL) | |
470 | && (s[2] == '[') && strchr(s, ']')) | |
471 | return 1; | |
472 | /* Handle arguments that are just SYMBOL. */ | |
473 | else if ((strchr ("+-", s[0]) != NULL) && (s[1] == '[') && strchr(s, ']')) | |
474 | return 1; | |
475 | return 0; | |
476 | } | |
477 | ||
50641945 FN |
478 | /* Given a list of NELTS symbols in SYM_ARR, return a list of lines to |
479 | operate on (ask user if necessary). | |
480 | If CANONICAL is non-NULL return a corresponding array of mangled names | |
481 | as canonical line specs there. */ | |
482 | ||
483 | static struct symtabs_and_lines | |
484 | decode_line_2 (struct symbol *sym_arr[], int nelts, int funfirstline, | |
485 | char ***canonical) | |
486 | { | |
487 | struct symtabs_and_lines values, return_values; | |
488 | char *args, *arg1; | |
489 | int i; | |
490 | char *prompt; | |
491 | char *symname; | |
492 | struct cleanup *old_chain; | |
493 | char **canonical_arr = (char **) NULL; | |
717d2f5a | 494 | const char *select_mode = multiple_symbols_select_mode (); |
50641945 | 495 | |
717d2f5a | 496 | if (select_mode == multiple_symbols_cancel) |
3e43a32a MS |
497 | error (_("canceled because the command is ambiguous\n" |
498 | "See set/show multiple-symbol.")); | |
717d2f5a | 499 | |
50641945 FN |
500 | values.sals = (struct symtab_and_line *) |
501 | alloca (nelts * sizeof (struct symtab_and_line)); | |
502 | return_values.sals = (struct symtab_and_line *) | |
503 | xmalloc (nelts * sizeof (struct symtab_and_line)); | |
b8c9b27d | 504 | old_chain = make_cleanup (xfree, return_values.sals); |
50641945 FN |
505 | |
506 | if (canonical) | |
507 | { | |
508 | canonical_arr = (char **) xmalloc (nelts * sizeof (char *)); | |
b8c9b27d | 509 | make_cleanup (xfree, canonical_arr); |
50641945 FN |
510 | memset (canonical_arr, 0, nelts * sizeof (char *)); |
511 | *canonical = canonical_arr; | |
512 | } | |
513 | ||
514 | i = 0; | |
50641945 FN |
515 | while (i < nelts) |
516 | { | |
a04257e6 | 517 | init_sal (&return_values.sals[i]); /* Initialize to zeroes. */ |
fe39c653 | 518 | init_sal (&values.sals[i]); |
50641945 | 519 | if (sym_arr[i] && SYMBOL_CLASS (sym_arr[i]) == LOC_BLOCK) |
717d2f5a | 520 | values.sals[i] = find_function_start_sal (sym_arr[i], funfirstline); |
50641945 FN |
521 | i++; |
522 | } | |
523 | ||
717d2f5a JB |
524 | /* If select_mode is "all", then do not print the multiple-choice |
525 | menu and act as if the user had chosen choice "1" (all). */ | |
dc67126b NR |
526 | if (select_mode == multiple_symbols_all |
527 | || ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ()))) | |
717d2f5a JB |
528 | args = "1"; |
529 | else | |
50641945 | 530 | { |
717d2f5a JB |
531 | i = 0; |
532 | printf_unfiltered (_("[0] cancel\n[1] all\n")); | |
533 | while (i < nelts) | |
534 | { | |
535 | if (sym_arr[i] && SYMBOL_CLASS (sym_arr[i]) == LOC_BLOCK) | |
536 | { | |
537 | if (values.sals[i].symtab) | |
538 | printf_unfiltered ("[%d] %s at %s:%d\n", | |
539 | (i + 2), | |
540 | SYMBOL_PRINT_NAME (sym_arr[i]), | |
541 | values.sals[i].symtab->filename, | |
542 | values.sals[i].line); | |
543 | else | |
3e43a32a MS |
544 | printf_unfiltered (_("[%d] %s at ?FILE:%d [No symtab? " |
545 | "Probably broken debug info...]\n"), | |
717d2f5a JB |
546 | (i + 2), |
547 | SYMBOL_PRINT_NAME (sym_arr[i]), | |
548 | values.sals[i].line); | |
549 | ||
550 | } | |
551 | else | |
552 | printf_unfiltered (_("?HERE\n")); | |
553 | i++; | |
554 | } | |
555 | ||
556 | prompt = getenv ("PS2"); | |
557 | if (prompt == NULL) | |
558 | { | |
559 | prompt = "> "; | |
560 | } | |
561 | args = command_line_input (prompt, 0, "overload-choice"); | |
50641945 | 562 | } |
50641945 FN |
563 | |
564 | if (args == 0 || *args == 0) | |
e2e0b3e5 | 565 | error_no_arg (_("one or more choice numbers")); |
50641945 FN |
566 | |
567 | i = 0; | |
568 | while (*args) | |
569 | { | |
570 | int num; | |
571 | ||
572 | arg1 = args; | |
573 | while (*arg1 >= '0' && *arg1 <= '9') | |
574 | arg1++; | |
575 | if (*arg1 && *arg1 != ' ' && *arg1 != '\t') | |
8a3fe4f8 | 576 | error (_("Arguments must be choice numbers.")); |
50641945 FN |
577 | |
578 | num = atoi (args); | |
579 | ||
580 | if (num == 0) | |
8a3fe4f8 | 581 | error (_("canceled")); |
50641945 FN |
582 | else if (num == 1) |
583 | { | |
584 | if (canonical_arr) | |
585 | { | |
586 | for (i = 0; i < nelts; i++) | |
587 | { | |
588 | if (canonical_arr[i] == NULL) | |
589 | { | |
3567439c | 590 | symname = SYMBOL_LINKAGE_NAME (sym_arr[i]); |
1b36a34b | 591 | canonical_arr[i] = xstrdup (symname); |
50641945 FN |
592 | } |
593 | } | |
594 | } | |
595 | memcpy (return_values.sals, values.sals, | |
596 | (nelts * sizeof (struct symtab_and_line))); | |
597 | return_values.nelts = nelts; | |
598 | discard_cleanups (old_chain); | |
599 | return return_values; | |
600 | } | |
601 | ||
602 | if (num >= nelts + 2) | |
603 | { | |
a3f17187 | 604 | printf_unfiltered (_("No choice number %d.\n"), num); |
50641945 FN |
605 | } |
606 | else | |
607 | { | |
608 | num -= 2; | |
609 | if (values.sals[num].pc) | |
610 | { | |
611 | if (canonical_arr) | |
612 | { | |
3567439c | 613 | symname = SYMBOL_LINKAGE_NAME (sym_arr[num]); |
b8c9b27d | 614 | make_cleanup (xfree, symname); |
1b36a34b | 615 | canonical_arr[i] = xstrdup (symname); |
50641945 FN |
616 | } |
617 | return_values.sals[i++] = values.sals[num]; | |
618 | values.sals[num].pc = 0; | |
619 | } | |
620 | else | |
621 | { | |
3e43a32a MS |
622 | printf_unfiltered (_("duplicate request for %d ignored.\n"), |
623 | num); | |
50641945 FN |
624 | } |
625 | } | |
626 | ||
627 | args = arg1; | |
628 | while (*args == ' ' || *args == '\t') | |
629 | args++; | |
630 | } | |
631 | return_values.nelts = i; | |
632 | discard_cleanups (old_chain); | |
633 | return return_values; | |
634 | } | |
94af9270 KS |
635 | |
636 | /* A helper function for decode_line_1 and friends which skips P | |
637 | past any method overload information at the beginning of P, e.g., | |
638 | "(const struct foo *)". | |
639 | ||
640 | This function assumes that P has already been validated to contain | |
641 | overload information, and it will assert if *P != '('. */ | |
642 | static char * | |
643 | find_method_overload_end (char *p) | |
644 | { | |
645 | int depth = 0; | |
646 | ||
647 | gdb_assert (*p == '('); | |
648 | ||
649 | while (*p) | |
650 | { | |
651 | if (*p == '(') | |
652 | ++depth; | |
653 | else if (*p == ')') | |
654 | { | |
655 | if (--depth == 0) | |
656 | { | |
657 | ++p; | |
658 | break; | |
659 | } | |
660 | } | |
661 | ++p; | |
662 | } | |
663 | ||
664 | return p; | |
665 | } | |
50641945 FN |
666 | \f |
667 | /* The parser of linespec itself. */ | |
668 | ||
669 | /* Parse a string that specifies a line number. | |
670 | Pass the address of a char * variable; that variable will be | |
671 | advanced over the characters actually parsed. | |
672 | ||
673 | The string can be: | |
674 | ||
675 | LINENUM -- that line number in current file. PC returned is 0. | |
676 | FILE:LINENUM -- that line in that file. PC returned is 0. | |
677 | FUNCTION -- line number of openbrace of that function. | |
678 | PC returned is the start of the function. | |
0f5238ed | 679 | LABEL -- a label in the current scope |
50641945 FN |
680 | VARIABLE -- line number of definition of that variable. |
681 | PC returned is 0. | |
682 | FILE:FUNCTION -- likewise, but prefer functions in that file. | |
683 | *EXPR -- line in which address EXPR appears. | |
684 | ||
685 | This may all be followed by an "if EXPR", which we ignore. | |
686 | ||
687 | FUNCTION may be an undebuggable function found in minimal symbol table. | |
688 | ||
689 | If the argument FUNFIRSTLINE is nonzero, we want the first line | |
690 | of real code inside a function when a function is specified, and it is | |
691 | not OK to specify a variable or type to get its line number. | |
692 | ||
693 | DEFAULT_SYMTAB specifies the file to use if none is specified. | |
694 | It defaults to current_source_symtab. | |
695 | DEFAULT_LINE specifies the line number to use for relative | |
696 | line numbers (that start with signs). Defaults to current_source_line. | |
697 | If CANONICAL is non-NULL, store an array of strings containing the canonical | |
698 | line specs there if necessary. Currently overloaded member functions and | |
699 | line numbers or static functions without a filename yield a canonical | |
700 | line spec. The array and the line spec strings are allocated on the heap, | |
701 | it is the callers responsibility to free them. | |
702 | ||
703 | Note that it is possible to return zero for the symtab | |
704 | if no file is validly specified. Callers must check that. | |
68219205 JJ |
705 | Also, the line number returned may be invalid. |
706 | ||
3e43a32a MS |
707 | If NOT_FOUND_PTR is not null, store a boolean true/false value at |
708 | the location, based on whether or not failure occurs due to an | |
709 | unknown function or file. In the case where failure does occur due | |
710 | to an unknown function or file, do not issue an error message. */ | |
50641945 FN |
711 | |
712 | /* We allow single quotes in various places. This is a hideous | |
713 | kludge, which exists because the completer can't yet deal with the | |
714 | lack of single quotes. FIXME: write a linespec_completer which we | |
715 | can use as appropriate instead of make_symbol_completion_list. */ | |
716 | ||
717 | struct symtabs_and_lines | |
718 | decode_line_1 (char **argptr, int funfirstline, struct symtab *default_symtab, | |
68219205 | 719 | int default_line, char ***canonical, int *not_found_ptr) |
50641945 | 720 | { |
f3c39e76 | 721 | char *p; |
614b3b14 | 722 | char *q; |
88d262ca DC |
723 | /* If a file name is specified, this is its symtab. */ |
724 | struct symtab *file_symtab = NULL; | |
50641945 | 725 | |
50641945 | 726 | char *copy; |
636b1a6d DC |
727 | /* This says whether or not something in *ARGPTR is quoted with |
728 | completer_quotes (i.e. with single quotes). */ | |
50641945 | 729 | int is_quoted; |
0e0b460e | 730 | /* Is *ARGPTR is enclosed in double quotes? */ |
50641945 | 731 | int is_quote_enclosed; |
d2630e69 | 732 | int is_objc_method = 0; |
50641945 | 733 | char *saved_arg = *argptr; |
791dfb64 DJ |
734 | /* If IS_QUOTED, the end of the quoted bit. */ |
735 | char *end_quote = NULL; | |
0e0b460e KS |
736 | /* The "first half" of the linespec. */ |
737 | char *first_half; | |
50641945 | 738 | |
68219205 JJ |
739 | if (not_found_ptr) |
740 | *not_found_ptr = 0; | |
741 | ||
50641945 FN |
742 | /* Defaults have defaults. */ |
743 | ||
44fe14ab DC |
744 | initialize_defaults (&default_symtab, &default_line); |
745 | ||
a04257e6 | 746 | /* See if arg is *PC. */ |
50641945 FN |
747 | |
748 | if (**argptr == '*') | |
44fe14ab | 749 | return decode_indirect (argptr); |
50641945 | 750 | |
94af9270 KS |
751 | is_quoted = (*argptr |
752 | && strchr (get_gdb_completer_quote_characters (), | |
753 | **argptr) != NULL); | |
791dfb64 DJ |
754 | if (is_quoted) |
755 | end_quote = skip_quoted (*argptr); | |
50641945 | 756 | |
0960f083 DC |
757 | /* Check to see if it's a multipart linespec (with colons or |
758 | periods). */ | |
50641945 | 759 | |
17763fd9 EZ |
760 | /* Locate the end of the first half of the linespec. |
761 | After the call, for instance, if the argptr string is "foo.c:123" | |
762 | p will point at "123". If there is only one part, like "foo", p | |
763 | will point to "". If this is a C++ name, like "A::B::foo", p will | |
764 | point to "::B::foo". Argptr is not changed by this call. */ | |
50641945 | 765 | |
0e0b460e | 766 | first_half = p = locate_first_half (argptr, &is_quote_enclosed); |
50641945 | 767 | |
d2630e69 AF |
768 | /* Check if this is an Objective-C method (anything that starts with |
769 | a '+' or '-' and a '['). */ | |
889f28e2 | 770 | if (is_objc_method_format (p)) |
94af9270 | 771 | is_objc_method = 1; |
d2630e69 AF |
772 | |
773 | /* Check if the symbol could be an Objective-C selector. */ | |
774 | ||
775 | { | |
776 | struct symtabs_and_lines values; | |
e0881a8e | 777 | |
d2630e69 AF |
778 | values = decode_objc (argptr, funfirstline, NULL, |
779 | canonical, saved_arg); | |
780 | if (values.sals != NULL) | |
781 | return values; | |
782 | } | |
783 | ||
0960f083 | 784 | /* Does it look like there actually were two parts? */ |
50641945 | 785 | |
791dfb64 | 786 | if (p[0] == ':' || p[0] == '.') |
50641945 | 787 | { |
17763fd9 EZ |
788 | /* Is it a C++ or Java compound data structure? |
789 | The check on p[1] == ':' is capturing the case of "::", | |
790 | since p[0]==':' was checked above. | |
791 | Note that the call to decode_compound does everything | |
792 | for us, including the lookup on the symbol table, so we | |
793 | can return now. */ | |
794 | ||
50641945 | 795 | if (p[0] == '.' || p[1] == ':') |
791dfb64 | 796 | { |
94af9270 KS |
797 | struct symtabs_and_lines values; |
798 | ||
799 | if (is_quote_enclosed) | |
800 | ++saved_arg; | |
801 | values = decode_compound (argptr, funfirstline, canonical, | |
791dfb64 | 802 | saved_arg, p, not_found_ptr); |
94af9270 KS |
803 | if (is_quoted && **argptr == '\'') |
804 | *argptr = *argptr + 1; | |
805 | return values; | |
791dfb64 | 806 | } |
50641945 | 807 | |
94af9270 KS |
808 | /* No, the first part is a filename; set file_symtab to be that file's |
809 | symtab. Also, move argptr past the filename. */ | |
50641945 | 810 | |
94af9270 KS |
811 | file_symtab = symtab_from_filename (argptr, p, is_quote_enclosed, |
812 | not_found_ptr); | |
50641945 | 813 | |
94af9270 KS |
814 | /* Check for single quotes on the non-filename part. */ |
815 | if (!is_quoted) | |
50641945 | 816 | { |
94af9270 KS |
817 | is_quoted = (**argptr |
818 | && strchr (get_gdb_completer_quote_characters (), | |
819 | **argptr) != NULL); | |
820 | if (is_quoted) | |
821 | end_quote = skip_quoted (*argptr); | |
50641945 | 822 | } |
50641945 | 823 | } |
50641945 | 824 | |
bc882aa9 | 825 | /* file_symtab is specified file's symtab, or 0 if no file specified. |
50641945 FN |
826 | arg no longer contains the file name. */ |
827 | ||
0e0b460e KS |
828 | /* If the filename was quoted, we must re-check the quotation. */ |
829 | ||
830 | if (end_quote == first_half && *end_quote!= '\0') | |
831 | { | |
832 | is_quoted = (**argptr | |
833 | && strchr (get_gdb_completer_quote_characters (), | |
834 | **argptr) != NULL); | |
835 | if (is_quoted) | |
836 | end_quote = skip_quoted (*argptr); | |
837 | } | |
838 | ||
a04257e6 | 839 | /* Check whether arg is all digits (and sign). */ |
50641945 FN |
840 | |
841 | q = *argptr; | |
842 | if (*q == '-' || *q == '+') | |
843 | q++; | |
844 | while (*q >= '0' && *q <= '9') | |
845 | q++; | |
846 | ||
847 | if (q != *argptr && (*q == 0 || *q == ' ' || *q == '\t' || *q == ',')) | |
84fba31b DC |
848 | /* We found a token consisting of all digits -- at least one digit. */ |
849 | return decode_all_digits (argptr, default_symtab, default_line, | |
88d262ca | 850 | canonical, file_symtab, q); |
50641945 FN |
851 | |
852 | /* Arg token is not digits => try it as a variable name | |
853 | Find the next token (everything up to end or next whitespace). */ | |
854 | ||
a04257e6 DC |
855 | if (**argptr == '$') /* May be a convenience variable. */ |
856 | /* One or two $ chars possible. */ | |
857 | p = skip_quoted (*argptr + (((*argptr)[1] == '$') ? 2 : 1)); | |
50641945 FN |
858 | else if (is_quoted) |
859 | { | |
791dfb64 | 860 | p = end_quote; |
50641945 | 861 | if (p[-1] != '\'') |
8a3fe4f8 | 862 | error (_("Unmatched single quote.")); |
50641945 | 863 | } |
d2630e69 AF |
864 | else if (is_objc_method) |
865 | { | |
866 | /* allow word separators in method names for Obj-C */ | |
867 | p = skip_quoted_chars (*argptr, NULL, ""); | |
868 | } | |
50641945 FN |
869 | else |
870 | { | |
871 | p = skip_quoted (*argptr); | |
872 | } | |
873 | ||
19ef5c71 KS |
874 | /* Keep any template parameters */ |
875 | if (*p == '<') | |
876 | p = find_template_name_end (p); | |
877 | ||
94af9270 KS |
878 | /* Keep method overload information. */ |
879 | if (*p == '(') | |
880 | p = find_method_overload_end (p); | |
881 | ||
882 | /* Make sure we keep important kewords like "const" */ | |
883 | if (strncmp (p, " const", 6) == 0) | |
884 | p += 6; | |
885 | ||
50641945 FN |
886 | copy = (char *) alloca (p - *argptr + 1); |
887 | memcpy (copy, *argptr, p - *argptr); | |
888 | copy[p - *argptr] = '\0'; | |
889 | if (p != *argptr | |
890 | && copy[0] | |
891 | && copy[0] == copy[p - *argptr - 1] | |
c5f0f3d0 | 892 | && strchr (get_gdb_completer_quote_characters (), copy[0]) != NULL) |
50641945 FN |
893 | { |
894 | copy[p - *argptr - 1] = '\0'; | |
895 | copy++; | |
896 | } | |
791dfb64 DJ |
897 | else if (is_quoted) |
898 | copy[p - *argptr - 1] = '\0'; | |
50641945 FN |
899 | while (*p == ' ' || *p == '\t') |
900 | p++; | |
901 | *argptr = p; | |
902 | ||
903 | /* If it starts with $: may be a legitimate variable or routine name | |
904 | (e.g. HP-UX millicode routines such as $$dyncall), or it may | |
a04257e6 | 905 | be history value, or it may be a convenience variable. */ |
50641945 FN |
906 | |
907 | if (*copy == '$') | |
14e91ac5 | 908 | return decode_dollar (copy, funfirstline, default_symtab, |
88d262ca | 909 | canonical, file_symtab); |
50641945 | 910 | |
0f5238ed TT |
911 | /* Try the token as a label, but only if no file was specified, |
912 | because we can only really find labels in the current scope. */ | |
913 | ||
914 | if (!file_symtab) | |
915 | { | |
916 | struct symtabs_and_lines label_result; | |
917 | if (decode_label (copy, canonical, &label_result)) | |
918 | return label_result; | |
919 | } | |
920 | ||
50641945 FN |
921 | /* Look up that token as a variable. |
922 | If file specified, use that file's per-file block to start with. */ | |
923 | ||
68219205 JJ |
924 | return decode_variable (copy, funfirstline, canonical, |
925 | file_symtab, not_found_ptr); | |
413dad4d | 926 | } |
50641945 | 927 | |
44fe14ab DC |
928 | \f |
929 | ||
614b3b14 DC |
930 | /* Now, more helper functions for decode_line_1. Some conventions |
931 | that these functions follow: | |
932 | ||
933 | Decode_line_1 typically passes along some of its arguments or local | |
934 | variables to the subfunctions. It passes the variables by | |
935 | reference if they are modified by the subfunction, and by value | |
936 | otherwise. | |
937 | ||
938 | Some of the functions have side effects that don't arise from | |
939 | variables that are passed by reference. In particular, if a | |
940 | function is passed ARGPTR as an argument, it modifies what ARGPTR | |
941 | points to; typically, it advances *ARGPTR past whatever substring | |
942 | it has just looked at. (If it doesn't modify *ARGPTR, then the | |
94af9270 KS |
943 | function gets passed *ARGPTR instead, which is then called ARG.) |
944 | Also, functions that return a struct symtabs_and_lines may modify | |
945 | CANONICAL, as in the description of decode_line_1. | |
614b3b14 DC |
946 | |
947 | If a function returns a struct symtabs_and_lines, then that struct | |
948 | will immediately make its way up the call chain to be returned by | |
949 | decode_line_1. In particular, all of the functions decode_XXX | |
950 | calculate the appropriate struct symtabs_and_lines, under the | |
951 | assumption that their argument is of the form XXX. */ | |
44fe14ab DC |
952 | |
953 | /* First, some functions to initialize stuff at the beggining of the | |
954 | function. */ | |
955 | ||
956 | static void | |
957 | initialize_defaults (struct symtab **default_symtab, int *default_line) | |
958 | { | |
959 | if (*default_symtab == 0) | |
960 | { | |
961 | /* Use whatever we have for the default source line. We don't use | |
962 | get_current_or_default_symtab_and_line as it can recurse and call | |
963 | us back! */ | |
964 | struct symtab_and_line cursal = | |
965 | get_current_source_symtab_and_line (); | |
966 | ||
967 | *default_symtab = cursal.symtab; | |
968 | *default_line = cursal.line; | |
969 | } | |
970 | } | |
971 | ||
972 | \f | |
973 | ||
974 | /* Decode arg of the form *PC. */ | |
975 | ||
976 | static struct symtabs_and_lines | |
977 | decode_indirect (char **argptr) | |
978 | { | |
979 | struct symtabs_and_lines values; | |
980 | CORE_ADDR pc; | |
981 | ||
982 | (*argptr)++; | |
983 | pc = parse_and_eval_address_1 (argptr); | |
984 | ||
985 | values.sals = (struct symtab_and_line *) | |
986 | xmalloc (sizeof (struct symtab_and_line)); | |
987 | ||
988 | values.nelts = 1; | |
989 | values.sals[0] = find_pc_line (pc, 0); | |
990 | values.sals[0].pc = pc; | |
991 | values.sals[0].section = find_pc_overlay (pc); | |
ed0616c6 | 992 | values.sals[0].explicit_pc = 1; |
44fe14ab DC |
993 | |
994 | return values; | |
995 | } | |
413dad4d DC |
996 | |
997 | \f | |
998 | ||
0960f083 DC |
999 | /* Locate the first half of the linespec, ending in a colon, period, |
1000 | or whitespace. (More or less.) Also, check to see if *ARGPTR is | |
1001 | enclosed in double quotes; if so, set is_quote_enclosed, advance | |
17763fd9 EZ |
1002 | ARGPTR past that and zero out the trailing double quote. |
1003 | If ARGPTR is just a simple name like "main", p will point to "" | |
1004 | at the end. */ | |
0960f083 DC |
1005 | |
1006 | static char * | |
1007 | locate_first_half (char **argptr, int *is_quote_enclosed) | |
1008 | { | |
1009 | char *ii; | |
1010 | char *p, *p1; | |
1011 | int has_comma; | |
1012 | ||
1013 | /* Maybe we were called with a line range FILENAME:LINENUM,FILENAME:LINENUM | |
1014 | and we must isolate the first half. Outer layers will call again later | |
1015 | for the second half. | |
1016 | ||
1017 | Don't count commas that appear in argument lists of overloaded | |
1018 | functions, or in quoted strings. It's stupid to go to this much | |
1019 | trouble when the rest of the function is such an obvious roach hotel. */ | |
1020 | ii = find_toplevel_char (*argptr, ','); | |
1021 | has_comma = (ii != 0); | |
1022 | ||
a04257e6 DC |
1023 | /* Temporarily zap out second half to not confuse the code below. |
1024 | This is undone below. Do not change ii!! */ | |
0960f083 DC |
1025 | if (has_comma) |
1026 | { | |
1027 | *ii = '\0'; | |
1028 | } | |
1029 | ||
a04257e6 DC |
1030 | /* Maybe arg is FILE : LINENUM or FILE : FUNCTION. May also be |
1031 | CLASS::MEMBER, or NAMESPACE::NAME. Look for ':', but ignore | |
1032 | inside of <>. */ | |
0960f083 DC |
1033 | |
1034 | p = *argptr; | |
1035 | if (p[0] == '"') | |
1036 | { | |
1037 | *is_quote_enclosed = 1; | |
1038 | (*argptr)++; | |
1039 | p++; | |
1040 | } | |
1041 | else | |
0e0b460e KS |
1042 | { |
1043 | *is_quote_enclosed = 0; | |
1044 | if (strchr (get_gdb_completer_quote_characters (), *p)) | |
1045 | { | |
1046 | ++(*argptr); | |
1047 | ++p; | |
1048 | } | |
1049 | } | |
0960f083 DC |
1050 | for (; *p; p++) |
1051 | { | |
1052 | if (p[0] == '<') | |
1053 | { | |
1054 | char *temp_end = find_template_name_end (p); | |
e0881a8e | 1055 | |
0960f083 | 1056 | if (!temp_end) |
8a3fe4f8 | 1057 | error (_("malformed template specification in command")); |
0960f083 DC |
1058 | p = temp_end; |
1059 | } | |
d2630e69 AF |
1060 | /* Check for a colon and a plus or minus and a [ (which |
1061 | indicates an Objective-C method) */ | |
889f28e2 | 1062 | if (is_objc_method_format (p)) |
d2630e69 AF |
1063 | { |
1064 | break; | |
1065 | } | |
a04257e6 DC |
1066 | /* Check for the end of the first half of the linespec. End of |
1067 | line, a tab, a double colon or the last single colon, or a | |
1068 | space. But if enclosed in double quotes we do not break on | |
1069 | enclosed spaces. */ | |
0960f083 DC |
1070 | if (!*p |
1071 | || p[0] == '\t' | |
1072 | || ((p[0] == ':') | |
1073 | && ((p[1] == ':') || (strchr (p + 1, ':') == NULL))) | |
1074 | || ((p[0] == ' ') && !*is_quote_enclosed)) | |
1075 | break; | |
a04257e6 | 1076 | if (p[0] == '.' && strchr (p, ':') == NULL) |
0960f083 | 1077 | { |
a04257e6 | 1078 | /* Java qualified method. Find the *last* '.', since the |
94af9270 KS |
1079 | others are package qualifiers. Stop at any open parenthesis |
1080 | which might provide overload information. */ | |
1081 | for (p1 = p; *p1 && *p1 != '('; p1++) | |
0960f083 DC |
1082 | { |
1083 | if (*p1 == '.') | |
1084 | p = p1; | |
1085 | } | |
1086 | break; | |
1087 | } | |
1088 | } | |
1089 | while (p[0] == ' ' || p[0] == '\t') | |
1090 | p++; | |
1091 | ||
a04257e6 | 1092 | /* If the closing double quote was left at the end, remove it. */ |
0960f083 DC |
1093 | if (*is_quote_enclosed) |
1094 | { | |
1095 | char *closing_quote = strchr (p - 1, '"'); | |
e0881a8e | 1096 | |
0960f083 DC |
1097 | if (closing_quote && closing_quote[1] == '\0') |
1098 | *closing_quote = '\0'; | |
1099 | } | |
1100 | ||
a04257e6 DC |
1101 | /* Now that we've safely parsed the first half, put back ',' so |
1102 | outer layers can see it. */ | |
0960f083 DC |
1103 | if (has_comma) |
1104 | *ii = ','; | |
1105 | ||
1106 | return p; | |
1107 | } | |
1108 | ||
1109 | \f | |
1110 | ||
d2630e69 AF |
1111 | /* Here's where we recognise an Objective-C Selector. An Objective C |
1112 | selector may be implemented by more than one class, therefore it | |
1113 | may represent more than one method/function. This gives us a | |
1114 | situation somewhat analogous to C++ overloading. If there's more | |
1115 | than one method that could represent the selector, then use some of | |
1116 | the existing C++ code to let the user choose one. */ | |
1117 | ||
1118 | struct symtabs_and_lines | |
1119 | decode_objc (char **argptr, int funfirstline, struct symtab *file_symtab, | |
1120 | char ***canonical, char *saved_arg) | |
1121 | { | |
1122 | struct symtabs_and_lines values; | |
1123 | struct symbol **sym_arr = NULL; | |
1124 | struct symbol *sym = NULL; | |
1125 | char *copy = NULL; | |
1126 | struct block *block = NULL; | |
15550d6b MK |
1127 | unsigned i1 = 0; |
1128 | unsigned i2 = 0; | |
d2630e69 AF |
1129 | |
1130 | values.sals = NULL; | |
1131 | values.nelts = 0; | |
1132 | ||
1133 | if (file_symtab != NULL) | |
1134 | block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (file_symtab), STATIC_BLOCK); | |
1135 | else | |
c4fc331b AS |
1136 | { |
1137 | enum language save_language; | |
1138 | ||
1139 | /* get_selected_block can change the current language when there is | |
1140 | no selected frame yet. */ | |
1141 | save_language = current_language->la_language; | |
1142 | block = get_selected_block (0); | |
1143 | set_language (save_language); | |
1144 | } | |
1145 | ||
d2630e69 AF |
1146 | copy = find_imps (file_symtab, block, *argptr, NULL, &i1, &i2); |
1147 | ||
1148 | if (i1 > 0) | |
1149 | { | |
1150 | sym_arr = (struct symbol **) alloca ((i1 + 1) * sizeof (struct symbol *)); | |
46be51c4 | 1151 | sym_arr[i1] = NULL; |
d2630e69 AF |
1152 | |
1153 | copy = find_imps (file_symtab, block, *argptr, sym_arr, &i1, &i2); | |
1154 | *argptr = copy; | |
1155 | } | |
1156 | ||
1157 | /* i1 now represents the TOTAL number of matches found. | |
1158 | i2 represents how many HIGH-LEVEL (struct symbol) matches, | |
1159 | which will come first in the sym_arr array. Any low-level | |
1160 | (minimal_symbol) matches will follow those. */ | |
1161 | ||
1162 | if (i1 == 1) | |
1163 | { | |
1164 | if (i2 > 0) | |
1165 | { | |
1166 | /* Already a struct symbol. */ | |
1167 | sym = sym_arr[0]; | |
1168 | } | |
1169 | else | |
1170 | { | |
1171 | sym = find_pc_function (SYMBOL_VALUE_ADDRESS (sym_arr[0])); | |
3e43a32a MS |
1172 | if ((sym != NULL) && strcmp (SYMBOL_LINKAGE_NAME (sym_arr[0]), |
1173 | SYMBOL_LINKAGE_NAME (sym)) != 0) | |
d2630e69 | 1174 | { |
3e43a32a MS |
1175 | warning (_("debugging symbol \"%s\" does " |
1176 | "not match selector; ignoring"), | |
1177 | SYMBOL_LINKAGE_NAME (sym)); | |
d2630e69 AF |
1178 | sym = NULL; |
1179 | } | |
1180 | } | |
1181 | ||
3e43a32a MS |
1182 | values.sals = (struct symtab_and_line *) |
1183 | xmalloc (sizeof (struct symtab_and_line)); | |
d2630e69 AF |
1184 | values.nelts = 1; |
1185 | ||
1186 | if (sym && SYMBOL_CLASS (sym) == LOC_BLOCK) | |
1187 | { | |
1188 | /* Canonicalize this, so it remains resolved for dylib loads. */ | |
1189 | values.sals[0] = find_function_start_sal (sym, funfirstline); | |
3e43a32a MS |
1190 | build_canonical_line_spec (values.sals, |
1191 | SYMBOL_NATURAL_NAME (sym), canonical); | |
d2630e69 AF |
1192 | } |
1193 | else | |
1194 | { | |
69368a60 UW |
1195 | /* The only match was a non-debuggable symbol, which might point |
1196 | to a function descriptor; resolve it to the actual code address | |
1197 | instead. */ | |
1198 | struct minimal_symbol *msymbol = (struct minimal_symbol *)sym_arr[0]; | |
1199 | struct objfile *objfile = msymbol_objfile (msymbol); | |
1200 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
1201 | CORE_ADDR pc = SYMBOL_VALUE_ADDRESS (msymbol); | |
1202 | ||
1203 | pc = gdbarch_convert_from_func_ptr_addr (gdbarch, pc, | |
1204 | ¤t_target); | |
1205 | ||
1206 | init_sal (&values.sals[0]); | |
1207 | values.sals[0].pc = pc; | |
d2630e69 AF |
1208 | } |
1209 | return values; | |
1210 | } | |
1211 | ||
1212 | if (i1 > 1) | |
1213 | { | |
1214 | /* More than one match. The user must choose one or more. */ | |
1215 | return decode_line_2 (sym_arr, i2, funfirstline, canonical); | |
1216 | } | |
1217 | ||
1218 | return values; | |
1219 | } | |
1220 | ||
614b3b14 | 1221 | /* This handles C++ and Java compound data structures. P should point |
17763fd9 EZ |
1222 | at the first component separator, i.e. double-colon or period. As |
1223 | an example, on entrance to this function we could have ARGPTR | |
1224 | pointing to "AAA::inA::fun" and P pointing to "::inA::fun". */ | |
614b3b14 DC |
1225 | |
1226 | static struct symtabs_and_lines | |
1227 | decode_compound (char **argptr, int funfirstline, char ***canonical, | |
f3a5f1de | 1228 | char *saved_arg, char *p, int *not_found_ptr) |
614b3b14 DC |
1229 | { |
1230 | struct symtabs_and_lines values; | |
93d91629 | 1231 | char *p2; |
614b3b14 DC |
1232 | char *saved_arg2 = *argptr; |
1233 | char *temp_end; | |
1234 | struct symbol *sym; | |
614b3b14 DC |
1235 | char *copy; |
1236 | struct symbol *sym_class; | |
614b3b14 | 1237 | struct type *t; |
94af9270 | 1238 | char *saved_java_argptr = NULL; |
614b3b14 | 1239 | |
17763fd9 EZ |
1240 | /* First check for "global" namespace specification, of the form |
1241 | "::foo". If found, skip over the colons and jump to normal | |
1242 | symbol processing. I.e. the whole line specification starts with | |
1243 | "::" (note the condition that *argptr == p). */ | |
614b3b14 DC |
1244 | if (p[0] == ':' |
1245 | && ((*argptr == p) || (p[-1] == ' ') || (p[-1] == '\t'))) | |
1246 | saved_arg2 += 2; | |
1247 | ||
87b3ede8 DC |
1248 | /* Given our example "AAA::inA::fun", we have two cases to consider: |
1249 | ||
1250 | 1) AAA::inA is the name of a class. In that case, presumably it | |
1251 | has a method called "fun"; we then look up that method using | |
1252 | find_method. | |
1253 | ||
1254 | 2) AAA::inA isn't the name of a class. In that case, either the | |
1255 | user made a typo or AAA::inA is the name of a namespace. | |
1256 | Either way, we just look up AAA::inA::fun with lookup_symbol. | |
1257 | ||
1258 | Thus, our first task is to find everything before the last set of | |
1259 | double-colons and figure out if it's the name of a class. So we | |
1260 | first loop through all of the double-colons. */ | |
614b3b14 | 1261 | |
a04257e6 | 1262 | p2 = p; /* Save for restart. */ |
17763fd9 EZ |
1263 | |
1264 | /* This is very messy. Following the example above we have now the | |
1265 | following pointers: | |
1266 | p -> "::inA::fun" | |
1267 | argptr -> "AAA::inA::fun | |
1268 | saved_arg -> "AAA::inA::fun | |
1269 | saved_arg2 -> "AAA::inA::fun | |
1270 | p2 -> "::inA::fun". */ | |
1271 | ||
1272 | /* In the loop below, with these strings, we'll make 2 passes, each | |
1273 | is marked in comments.*/ | |
1274 | ||
614b3b14 DC |
1275 | while (1) |
1276 | { | |
a04257e6 | 1277 | /* Move pointer up to next possible class/namespace token. */ |
17763fd9 | 1278 | |
a04257e6 | 1279 | p = p2 + 1; /* Restart with old value +1. */ |
17763fd9 EZ |
1280 | |
1281 | /* PASS1: at this point p2->"::inA::fun", so p->":inA::fun", | |
1282 | i.e. if there is a double-colon, p will now point to the | |
1283 | second colon. */ | |
87b3ede8 | 1284 | /* PASS2: p2->"::fun", p->":fun" */ |
17763fd9 | 1285 | |
a04257e6 | 1286 | /* Move pointer ahead to next double-colon. */ |
94af9270 KS |
1287 | while (*p && (p[0] != ' ') && (p[0] != '\t') && (p[0] != '\'') |
1288 | && (*p != '(')) | |
614b3b14 | 1289 | { |
12907978 KS |
1290 | if (current_language->la_language == language_cplus) |
1291 | p += cp_validate_operator (p); | |
1292 | ||
614b3b14 DC |
1293 | if (p[0] == '<') |
1294 | { | |
1295 | temp_end = find_template_name_end (p); | |
1296 | if (!temp_end) | |
8a3fe4f8 | 1297 | error (_("malformed template specification in command")); |
614b3b14 DC |
1298 | p = temp_end; |
1299 | } | |
17763fd9 EZ |
1300 | /* Note that, since, at the start of this loop, p would be |
1301 | pointing to the second colon in a double-colon, we only | |
1302 | satisfy the condition below if there is another | |
1303 | double-colon to the right (after). I.e. there is another | |
1304 | component that can be a class or a namespace. I.e, if at | |
1305 | the beginning of this loop (PASS1), we had | |
1306 | p->":inA::fun", we'll trigger this when p has been | |
1307 | advanced to point to "::fun". */ | |
87b3ede8 | 1308 | /* PASS2: we will not trigger this. */ |
614b3b14 | 1309 | else if ((p[0] == ':') && (p[1] == ':')) |
a04257e6 | 1310 | break; /* Found double-colon. */ |
614b3b14 | 1311 | else |
87b3ede8 DC |
1312 | /* PASS2: We'll keep getting here, until p->"", at which point |
1313 | we exit this loop. */ | |
614b3b14 DC |
1314 | p++; |
1315 | } | |
1316 | ||
1317 | if (*p != ':') | |
17763fd9 EZ |
1318 | break; /* Out of the while (1). This would happen |
1319 | for instance if we have looked up | |
1320 | unsuccessfully all the components of the | |
87b3ede8 | 1321 | string, and p->""(PASS2) */ |
17763fd9 EZ |
1322 | |
1323 | /* We get here if p points to ' ', '\t', '\'', "::" or ""(i.e | |
1324 | string ended). */ | |
1325 | /* Save restart for next time around. */ | |
1326 | p2 = p; | |
1327 | /* Restore argptr as it was on entry to this function. */ | |
1328 | *argptr = saved_arg2; | |
87b3ede8 DC |
1329 | /* PASS1: at this point p->"::fun" argptr->"AAA::inA::fun", |
1330 | p2->"::fun". */ | |
17763fd9 EZ |
1331 | |
1332 | /* All ready for next pass through the loop. */ | |
614b3b14 DC |
1333 | } /* while (1) */ |
1334 | ||
87b3ede8 DC |
1335 | |
1336 | /* Start of lookup in the symbol tables. */ | |
1337 | ||
1338 | /* Lookup in the symbol table the substring between argptr and | |
1339 | p. Note, this call changes the value of argptr. */ | |
1340 | /* Before the call, argptr->"AAA::inA::fun", | |
1341 | p->"", p2->"::fun". After the call: argptr->"fun", p, p2 | |
1342 | unchanged. */ | |
1343 | sym_class = lookup_prefix_sym (argptr, p2); | |
1344 | ||
1345 | /* If sym_class has been found, and if "AAA::inA" is a class, then | |
1346 | we're in case 1 above. So we look up "fun" as a method of that | |
1347 | class. */ | |
1348 | if (sym_class && | |
1349 | (t = check_typedef (SYMBOL_TYPE (sym_class)), | |
1350 | (TYPE_CODE (t) == TYPE_CODE_STRUCT | |
1351 | || TYPE_CODE (t) == TYPE_CODE_UNION))) | |
1352 | { | |
1353 | /* Arg token is not digits => try it as a function name. | |
1354 | Find the next token (everything up to end or next | |
1355 | blank). */ | |
1356 | if (**argptr | |
1357 | && strchr (get_gdb_completer_quote_characters (), | |
1358 | **argptr) != NULL) | |
1359 | { | |
1360 | p = skip_quoted (*argptr); | |
1361 | *argptr = *argptr + 1; | |
1362 | } | |
1363 | else | |
1364 | { | |
1365 | /* At this point argptr->"fun". */ | |
94af9270 | 1366 | char *a; |
e0881a8e | 1367 | |
87b3ede8 | 1368 | p = *argptr; |
94af9270 KS |
1369 | while (*p && *p != ' ' && *p != '\t' && *p != ',' && *p != ':' |
1370 | && *p != '(') | |
87b3ede8 DC |
1371 | p++; |
1372 | /* At this point p->"". String ended. */ | |
12907978 KS |
1373 | /* Nope, C++ operators could have spaces in them |
1374 | ("foo::operator <" or "foo::operator delete []"). | |
1375 | I apologize, this is a bit hacky... */ | |
1376 | if (current_language->la_language == language_cplus | |
1377 | && *p == ' ' && p - 8 - *argptr + 1 > 0) | |
1378 | { | |
1379 | /* The above loop has already swallowed "operator". */ | |
1380 | p += cp_validate_operator (p - 8) - 8; | |
1381 | } | |
94af9270 KS |
1382 | |
1383 | /* Keep any template parameters */ | |
1384 | if (*p == '<') | |
1385 | p = find_template_name_end (p); | |
1386 | ||
1387 | /* Keep method overload information. */ | |
1388 | a = strchr (p, '('); | |
1389 | if (a != NULL) | |
1390 | p = find_method_overload_end (a); | |
1391 | ||
1392 | /* Make sure we keep important kewords like "const" */ | |
1393 | if (strncmp (p, " const", 6) == 0) | |
1394 | p += 6; | |
1395 | ||
1396 | /* Java may append typenames, so assume that if there is | |
1397 | anything else left in *argptr, it must be a typename. */ | |
1398 | if (*p && current_language->la_language == language_java) | |
1399 | { | |
1400 | struct type *type; | |
e0881a8e | 1401 | |
94af9270 KS |
1402 | p2 = p; |
1403 | while (*p2) | |
1404 | ++p2; | |
1405 | copy = (char *) alloca (p2 - p + 1); | |
1406 | memcpy (copy, p, p2 - p); | |
1407 | copy[p2 - p] = '\0'; | |
1408 | type = lookup_typename (current_language, get_current_arch (), | |
1409 | copy, NULL, 1); | |
1410 | if (type != NULL) | |
1411 | { | |
1412 | /* Save the location of this just in case this | |
1413 | method/type combination isn't actually defined. | |
1414 | It will be checked later. */ | |
1415 | saved_java_argptr = p; | |
1416 | p = p2; | |
1417 | } | |
1418 | } | |
87b3ede8 DC |
1419 | } |
1420 | ||
1421 | /* Allocate our own copy of the substring between argptr and | |
1422 | p. */ | |
1423 | copy = (char *) alloca (p - *argptr + 1); | |
1424 | memcpy (copy, *argptr, p - *argptr); | |
1425 | copy[p - *argptr] = '\0'; | |
1426 | if (p != *argptr | |
1427 | && copy[p - *argptr - 1] | |
1428 | && strchr (get_gdb_completer_quote_characters (), | |
1429 | copy[p - *argptr - 1]) != NULL) | |
1430 | copy[p - *argptr - 1] = '\0'; | |
1431 | ||
1432 | /* At this point copy->"fun", p->"" */ | |
1433 | ||
1434 | /* No line number may be specified. */ | |
1435 | while (*p == ' ' || *p == '\t') | |
1436 | p++; | |
1437 | *argptr = p; | |
1438 | /* At this point arptr->"". */ | |
1439 | ||
1440 | /* Look for copy as a method of sym_class. */ | |
1441 | /* At this point copy->"fun", sym_class is "AAA:inA", | |
1442 | saved_arg->"AAA::inA::fun". This concludes the scanning of | |
1443 | the string for possible components matches. If we find it | |
1444 | here, we return. If not, and we are at the and of the string, | |
1445 | we'll lookup the whole string in the symbol tables. */ | |
1446 | ||
94af9270 KS |
1447 | values = find_method (funfirstline, canonical, saved_arg, |
1448 | copy, t, sym_class, not_found_ptr); | |
1449 | if (saved_java_argptr != NULL && values.nelts == 1) | |
1450 | { | |
1451 | /* The user specified a specific return type for a java method. | |
1452 | Double-check that it really is the one the user specified. | |
1453 | [This is a necessary evil because strcmp_iw_ordered stops | |
1454 | comparisons too prematurely.] */ | |
1455 | sym = find_pc_sect_function (values.sals[0].pc, | |
1456 | values.sals[0].section); | |
1457 | /* We just found a SAL, we had better be able to go backwards! */ | |
1458 | gdb_assert (sym != NULL); | |
1459 | if (strcmp_iw (SYMBOL_LINKAGE_NAME (sym), saved_arg) != 0) | |
1460 | { | |
1461 | xfree (values.sals); | |
3e43a32a | 1462 | error (_("the class `%s' does not have " |
8f7e195f | 1463 | "any method instance named %s"), |
94af9270 KS |
1464 | SYMBOL_PRINT_NAME (sym_class), copy); |
1465 | } | |
1466 | } | |
1467 | return values; | |
87b3ede8 DC |
1468 | } /* End if symbol found */ |
1469 | ||
1470 | ||
1471 | /* We couldn't find a class, so we're in case 2 above. We check the | |
1472 | entire name as a symbol instead. */ | |
1473 | ||
614b3b14 DC |
1474 | copy = (char *) alloca (p - saved_arg2 + 1); |
1475 | memcpy (copy, saved_arg2, p - saved_arg2); | |
a04257e6 DC |
1476 | /* Note: if is_quoted should be true, we snuff out quote here |
1477 | anyway. */ | |
614b3b14 | 1478 | copy[p - saved_arg2] = '\000'; |
a04257e6 | 1479 | /* Set argptr to skip over the name. */ |
614b3b14 | 1480 | *argptr = (*p == '\'') ? p + 1 : p; |
17763fd9 | 1481 | |
614b3b14 | 1482 | /* Look up entire name */ |
2570f2b7 | 1483 | sym = lookup_symbol (copy, 0, VAR_DOMAIN, 0); |
614b3b14 | 1484 | if (sym) |
2570f2b7 | 1485 | return symbol_found (funfirstline, canonical, copy, sym, NULL); |
614b3b14 | 1486 | |
a04257e6 DC |
1487 | /* Couldn't find any interpretation as classes/namespaces, so give |
1488 | up. The quotes are important if copy is empty. */ | |
f3a5f1de KO |
1489 | if (not_found_ptr) |
1490 | *not_found_ptr = 1; | |
614b3b14 | 1491 | cplusplus_error (saved_arg, |
3e43a32a MS |
1492 | "Can't find member of namespace, " |
1493 | "class, struct, or union named \"%s\"\n", | |
614b3b14 DC |
1494 | copy); |
1495 | } | |
1496 | ||
93d91629 DC |
1497 | /* Next come some helper functions for decode_compound. */ |
1498 | ||
1499 | /* Return the symbol corresponding to the substring of *ARGPTR ending | |
1500 | at P, allowing whitespace. Also, advance *ARGPTR past the symbol | |
1501 | name in question, the compound object separator ("::" or "."), and | |
17763fd9 EZ |
1502 | whitespace. Note that *ARGPTR is changed whether or not the |
1503 | lookup_symbol call finds anything (i.e we return NULL). As an | |
1504 | example, say ARGPTR is "AAA::inA::fun" and P is "::inA::fun". */ | |
93d91629 DC |
1505 | |
1506 | static struct symbol * | |
1507 | lookup_prefix_sym (char **argptr, char *p) | |
1508 | { | |
1509 | char *p1; | |
1510 | char *copy; | |
1e5a1abc | 1511 | struct symbol *sym; |
93d91629 DC |
1512 | |
1513 | /* Extract the class name. */ | |
1514 | p1 = p; | |
1515 | while (p != *argptr && p[-1] == ' ') | |
1516 | --p; | |
1517 | copy = (char *) alloca (p - *argptr + 1); | |
1518 | memcpy (copy, *argptr, p - *argptr); | |
1519 | copy[p - *argptr] = 0; | |
1520 | ||
17763fd9 | 1521 | /* Discard the class name from the argptr. */ |
93d91629 DC |
1522 | p = p1 + (p1[0] == ':' ? 2 : 1); |
1523 | while (*p == ' ' || *p == '\t') | |
1524 | p++; | |
1525 | *argptr = p; | |
1526 | ||
17763fd9 EZ |
1527 | /* At this point p1->"::inA::fun", p->"inA::fun" copy->"AAA", |
1528 | argptr->"inA::fun" */ | |
1529 | ||
1e5a1abc KS |
1530 | sym = lookup_symbol (copy, 0, STRUCT_DOMAIN, 0); |
1531 | if (sym == NULL) | |
1532 | { | |
1533 | /* Typedefs are in VAR_DOMAIN so the above symbol lookup will | |
1534 | fail when the user attempts to lookup a method of a class | |
1535 | via a typedef'd name (NOT via the class's name, which is already | |
1536 | handled in symbol_matches_domain). So try the lookup again | |
1537 | using VAR_DOMAIN (where typedefs live) and double-check that we | |
1538 | found a struct/class type. */ | |
1539 | struct symbol *s = lookup_symbol (copy, 0, VAR_DOMAIN, 0); | |
e0881a8e | 1540 | |
1e5a1abc KS |
1541 | if (s != NULL) |
1542 | { | |
1543 | struct type *t = SYMBOL_TYPE (s); | |
e0881a8e | 1544 | |
1e5a1abc KS |
1545 | CHECK_TYPEDEF (t); |
1546 | if (TYPE_CODE (t) == TYPE_CODE_STRUCT) | |
1547 | return s; | |
1548 | } | |
1549 | } | |
1550 | ||
1551 | return sym; | |
93d91629 DC |
1552 | } |
1553 | ||
4224873a DC |
1554 | /* This finds the method COPY in the class whose type is T and whose |
1555 | symbol is SYM_CLASS. */ | |
1556 | ||
1557 | static struct symtabs_and_lines | |
1558 | find_method (int funfirstline, char ***canonical, char *saved_arg, | |
3e43a32a MS |
1559 | char *copy, struct type *t, struct symbol *sym_class, |
1560 | int *not_found_ptr) | |
4224873a DC |
1561 | { |
1562 | struct symtabs_and_lines values; | |
46be51c4 | 1563 | struct symbol *sym = NULL; |
78a11fb4 | 1564 | int i1; /* Counter for the symbol array. */ |
4224873a DC |
1565 | struct symbol **sym_arr = alloca (total_number_of_methods (t) |
1566 | * sizeof (struct symbol *)); | |
1567 | ||
78a11fb4 DC |
1568 | /* Find all methods with a matching name, and put them in |
1569 | sym_arr. */ | |
4224873a | 1570 | |
19ef5c71 | 1571 | i1 = find_methods (t, copy, SYMBOL_LANGUAGE (sym_class), sym_arr); |
4224873a | 1572 | |
4224873a DC |
1573 | if (i1 == 1) |
1574 | { | |
1575 | /* There is exactly one field with that name. */ | |
1576 | sym = sym_arr[0]; | |
1577 | ||
1578 | if (sym && SYMBOL_CLASS (sym) == LOC_BLOCK) | |
1579 | { | |
1580 | values.sals = (struct symtab_and_line *) | |
1581 | xmalloc (sizeof (struct symtab_and_line)); | |
1582 | values.nelts = 1; | |
1583 | values.sals[0] = find_function_start_sal (sym, | |
1584 | funfirstline); | |
1585 | } | |
1586 | else | |
1587 | { | |
15550d6b | 1588 | values.sals = NULL; |
4224873a DC |
1589 | values.nelts = 0; |
1590 | } | |
1591 | return values; | |
1592 | } | |
1593 | if (i1 > 0) | |
1594 | { | |
94af9270 KS |
1595 | /* If we were given a specific overload instance, use that |
1596 | (or error if no matches were found). Otherwise ask the user | |
1597 | which one to use. */ | |
1598 | if (strchr (saved_arg, '(') != NULL) | |
1599 | { | |
1600 | int i; | |
d03a3acf KS |
1601 | char *name = saved_arg; |
1602 | char *canon = cp_canonicalize_string (name); | |
1603 | struct cleanup *cleanup; | |
e0881a8e | 1604 | |
d03a3acf | 1605 | if (canon != NULL) |
94af9270 | 1606 | { |
d03a3acf KS |
1607 | name = canon; |
1608 | cleanup = make_cleanup (xfree, canon); | |
1609 | } | |
1610 | else | |
1611 | cleanup = make_cleanup (null_cleanup, NULL); | |
94af9270 | 1612 | |
d03a3acf KS |
1613 | for (i = 0; i < i1; ++i) |
1614 | { | |
94af9270 KS |
1615 | if (strcmp_iw (name, SYMBOL_LINKAGE_NAME (sym_arr[i])) == 0) |
1616 | { | |
1617 | values.sals = (struct symtab_and_line *) | |
1618 | xmalloc (sizeof (struct symtab_and_line)); | |
1619 | values.nelts = 1; | |
1620 | values.sals[0] = find_function_start_sal (sym_arr[i], | |
1621 | funfirstline); | |
d03a3acf | 1622 | do_cleanups (cleanup); |
94af9270 KS |
1623 | return values; |
1624 | } | |
94af9270 KS |
1625 | } |
1626 | ||
3e43a32a | 1627 | error (_("the class `%s' does not have " |
8f7e195f | 1628 | "any method instance named %s"), |
94af9270 KS |
1629 | SYMBOL_PRINT_NAME (sym_class), copy); |
1630 | } | |
1631 | ||
4224873a DC |
1632 | return decode_line_2 (sym_arr, i1, funfirstline, canonical); |
1633 | } | |
1634 | else | |
1635 | { | |
f3a5f1de KO |
1636 | if (not_found_ptr) |
1637 | *not_found_ptr = 1; | |
12907978 | 1638 | if (copy[0] == '~') |
4224873a DC |
1639 | cplusplus_error (saved_arg, |
1640 | "the class `%s' does not have destructor defined\n", | |
1641 | SYMBOL_PRINT_NAME (sym_class)); | |
1642 | else | |
1643 | cplusplus_error (saved_arg, | |
1644 | "the class %s does not have any method named %s\n", | |
12907978 | 1645 | SYMBOL_PRINT_NAME (sym_class), copy); |
4224873a DC |
1646 | } |
1647 | } | |
1648 | ||
f3c39e76 DC |
1649 | \f |
1650 | ||
1651 | /* Return the symtab associated to the filename given by the substring | |
68219205 JJ |
1652 | of *ARGPTR ending at P, and advance ARGPTR past that filename. If |
1653 | NOT_FOUND_PTR is not null and the source file is not found, store | |
1654 | boolean true at the location pointed to and do not issue an | |
1655 | error message. */ | |
f3c39e76 DC |
1656 | |
1657 | static struct symtab * | |
68219205 JJ |
1658 | symtab_from_filename (char **argptr, char *p, int is_quote_enclosed, |
1659 | int *not_found_ptr) | |
f3c39e76 DC |
1660 | { |
1661 | char *p1; | |
1662 | char *copy; | |
94cd26f8 | 1663 | struct symtab *file_symtab; |
f3c39e76 DC |
1664 | |
1665 | p1 = p; | |
1666 | while (p != *argptr && p[-1] == ' ') | |
1667 | --p; | |
1668 | if ((*p == '"') && is_quote_enclosed) | |
1669 | --p; | |
1670 | copy = (char *) alloca (p - *argptr + 1); | |
1671 | memcpy (copy, *argptr, p - *argptr); | |
a04257e6 | 1672 | /* It may have the ending quote right after the file name. */ |
0e0b460e KS |
1673 | if ((is_quote_enclosed && copy[p - *argptr - 1] == '"') |
1674 | || copy[p - *argptr - 1] == '\'') | |
f3c39e76 DC |
1675 | copy[p - *argptr - 1] = 0; |
1676 | else | |
1677 | copy[p - *argptr] = 0; | |
1678 | ||
1679 | /* Find that file's data. */ | |
94cd26f8 DC |
1680 | file_symtab = lookup_symtab (copy); |
1681 | if (file_symtab == 0) | |
f3c39e76 | 1682 | { |
68219205 | 1683 | if (not_found_ptr) |
05ff989b | 1684 | *not_found_ptr = 1; |
b96e2927 PA |
1685 | if (!have_full_symbols () && !have_partial_symbols ()) |
1686 | throw_error (NOT_FOUND_ERROR, | |
3e43a32a MS |
1687 | _("No symbol table is loaded. " |
1688 | "Use the \"file\" command.")); | |
109c3e39 | 1689 | throw_error (NOT_FOUND_ERROR, _("No source file named %s."), copy); |
f3c39e76 DC |
1690 | } |
1691 | ||
1692 | /* Discard the file name from the arg. */ | |
1693 | p = p1 + 1; | |
1694 | while (*p == ' ' || *p == '\t') | |
1695 | p++; | |
1696 | *argptr = p; | |
1697 | ||
94cd26f8 | 1698 | return file_symtab; |
f3c39e76 DC |
1699 | } |
1700 | ||
84fba31b DC |
1701 | \f |
1702 | ||
1703 | /* This decodes a line where the argument is all digits (possibly | |
1704 | preceded by a sign). Q should point to the end of those digits; | |
1705 | the other arguments are as usual. */ | |
1706 | ||
1707 | static struct symtabs_and_lines | |
1708 | decode_all_digits (char **argptr, struct symtab *default_symtab, | |
1709 | int default_line, char ***canonical, | |
88d262ca | 1710 | struct symtab *file_symtab, char *q) |
84fba31b DC |
1711 | |
1712 | { | |
1713 | struct symtabs_and_lines values; | |
1714 | struct symtab_and_line val; | |
1715 | ||
1716 | enum sign | |
1717 | { | |
1718 | none, plus, minus | |
1719 | } | |
1720 | sign = none; | |
1721 | ||
1722 | /* We might need a canonical line spec if no file was specified. */ | |
46be51c4 | 1723 | int need_canonical = (file_symtab == NULL) ? 1 : 0; |
84fba31b DC |
1724 | |
1725 | init_sal (&val); | |
1726 | ||
6c95b8df PA |
1727 | val.pspace = current_program_space; |
1728 | ||
84fba31b DC |
1729 | /* This is where we need to make sure that we have good defaults. |
1730 | We must guarantee that this section of code is never executed | |
1731 | when we are called with just a function name, since | |
1732 | set_default_source_symtab_and_line uses | |
a04257e6 | 1733 | select_source_symtab that calls us with such an argument. */ |
84fba31b | 1734 | |
88d262ca | 1735 | if (file_symtab == 0 && default_symtab == 0) |
84fba31b | 1736 | { |
a04257e6 | 1737 | /* Make sure we have at least a default source file. */ |
84fba31b DC |
1738 | set_default_source_symtab_and_line (); |
1739 | initialize_defaults (&default_symtab, &default_line); | |
1740 | } | |
1741 | ||
1742 | if (**argptr == '+') | |
1743 | sign = plus, (*argptr)++; | |
1744 | else if (**argptr == '-') | |
1745 | sign = minus, (*argptr)++; | |
1746 | val.line = atoi (*argptr); | |
1747 | switch (sign) | |
1748 | { | |
1749 | case plus: | |
1750 | if (q == *argptr) | |
1751 | val.line = 5; | |
88d262ca | 1752 | if (file_symtab == 0) |
84fba31b DC |
1753 | val.line = default_line + val.line; |
1754 | break; | |
1755 | case minus: | |
1756 | if (q == *argptr) | |
1757 | val.line = 15; | |
88d262ca | 1758 | if (file_symtab == 0) |
84fba31b DC |
1759 | val.line = default_line - val.line; |
1760 | else | |
1761 | val.line = 1; | |
1762 | break; | |
1763 | case none: | |
1764 | break; /* No need to adjust val.line. */ | |
1765 | } | |
1766 | ||
1767 | while (*q == ' ' || *q == '\t') | |
1768 | q++; | |
1769 | *argptr = q; | |
88d262ca DC |
1770 | if (file_symtab == 0) |
1771 | file_symtab = default_symtab; | |
84fba31b DC |
1772 | |
1773 | /* It is possible that this source file has more than one symtab, | |
1774 | and that the new line number specification has moved us from the | |
88d262ca DC |
1775 | default (in file_symtab) to a new one. */ |
1776 | val.symtab = find_line_symtab (file_symtab, val.line, NULL, NULL); | |
84fba31b | 1777 | if (val.symtab == 0) |
88d262ca | 1778 | val.symtab = file_symtab; |
84fba31b | 1779 | |
6c95b8df | 1780 | val.pspace = SYMTAB_PSPACE (val.symtab); |
84fba31b DC |
1781 | val.pc = 0; |
1782 | values.sals = (struct symtab_and_line *) | |
1783 | xmalloc (sizeof (struct symtab_and_line)); | |
1784 | values.sals[0] = val; | |
1785 | values.nelts = 1; | |
1786 | if (need_canonical) | |
1787 | build_canonical_line_spec (values.sals, NULL, canonical); | |
ed0616c6 | 1788 | values.sals[0].explicit_line = 1; |
84fba31b DC |
1789 | return values; |
1790 | } | |
f3c39e76 | 1791 | |
614b3b14 DC |
1792 | \f |
1793 | ||
14e91ac5 DC |
1794 | /* Decode a linespec starting with a dollar sign. */ |
1795 | ||
1796 | static struct symtabs_and_lines | |
1797 | decode_dollar (char *copy, int funfirstline, struct symtab *default_symtab, | |
88d262ca | 1798 | char ***canonical, struct symtab *file_symtab) |
14e91ac5 | 1799 | { |
4fa62494 | 1800 | LONGEST valx; |
14e91ac5 DC |
1801 | int index = 0; |
1802 | int need_canonical = 0; | |
1803 | struct symtabs_and_lines values; | |
1804 | struct symtab_and_line val; | |
1805 | char *p; | |
1806 | struct symbol *sym; | |
14e91ac5 DC |
1807 | struct minimal_symbol *msymbol; |
1808 | ||
1809 | p = (copy[1] == '$') ? copy + 2 : copy + 1; | |
1810 | while (*p >= '0' && *p <= '9') | |
1811 | p++; | |
a04257e6 | 1812 | if (!*p) /* Reached end of token without hitting non-digit. */ |
14e91ac5 | 1813 | { |
a04257e6 | 1814 | /* We have a value history reference. */ |
4fa62494 | 1815 | struct value *val_history; |
e0881a8e | 1816 | |
14e91ac5 | 1817 | sscanf ((copy[1] == '$') ? copy + 2 : copy + 1, "%d", &index); |
4fa62494 UW |
1818 | val_history = access_value_history ((copy[1] == '$') ? -index : index); |
1819 | if (TYPE_CODE (value_type (val_history)) != TYPE_CODE_INT) | |
3e43a32a MS |
1820 | error (_("History values used in line " |
1821 | "specs must have integer values.")); | |
4fa62494 | 1822 | valx = value_as_long (val_history); |
14e91ac5 DC |
1823 | } |
1824 | else | |
1825 | { | |
1826 | /* Not all digits -- may be user variable/function or a | |
a04257e6 | 1827 | convenience variable. */ |
14e91ac5 | 1828 | |
a04257e6 | 1829 | /* Look up entire name as a symbol first. */ |
2570f2b7 | 1830 | sym = lookup_symbol (copy, 0, VAR_DOMAIN, 0); |
46be51c4 | 1831 | file_symtab = (struct symtab *) NULL; |
14e91ac5 DC |
1832 | need_canonical = 1; |
1833 | /* Symbol was found --> jump to normal symbol processing. */ | |
1834 | if (sym) | |
2570f2b7 | 1835 | return symbol_found (funfirstline, canonical, copy, sym, NULL); |
14e91ac5 | 1836 | |
a04257e6 | 1837 | /* If symbol was not found, look in minimal symbol tables. */ |
14e91ac5 | 1838 | msymbol = lookup_minimal_symbol (copy, NULL, NULL); |
a04257e6 | 1839 | /* Min symbol was found --> jump to minsym processing. */ |
14e91ac5 DC |
1840 | if (msymbol) |
1841 | return minsym_found (funfirstline, msymbol); | |
1842 | ||
a04257e6 | 1843 | /* Not a user variable or function -- must be convenience variable. */ |
4fa62494 | 1844 | if (!get_internalvar_integer (lookup_internalvar (copy + 1), &valx)) |
3e43a32a MS |
1845 | error (_("Convenience variables used in line " |
1846 | "specs must have integer values.")); | |
14e91ac5 DC |
1847 | } |
1848 | ||
1849 | init_sal (&val); | |
1850 | ||
a04257e6 | 1851 | /* Either history value or convenience value from above, in valx. */ |
88d262ca | 1852 | val.symtab = file_symtab ? file_symtab : default_symtab; |
4fa62494 | 1853 | val.line = valx; |
14e91ac5 | 1854 | val.pc = 0; |
6c95b8df | 1855 | val.pspace = current_program_space; |
14e91ac5 DC |
1856 | |
1857 | values.sals = (struct symtab_and_line *) xmalloc (sizeof val); | |
1858 | values.sals[0] = val; | |
1859 | values.nelts = 1; | |
1860 | ||
1861 | if (need_canonical) | |
1862 | build_canonical_line_spec (values.sals, NULL, canonical); | |
1863 | ||
1864 | return values; | |
1865 | } | |
1866 | ||
bca02a8a DC |
1867 | \f |
1868 | ||
0f5238ed TT |
1869 | /* A helper for decode_line_1 that tries to find a label. The label |
1870 | is searched for in the current block. | |
1871 | COPY is the name of the label to find. | |
1872 | CANONICAL is the same as the "canonical" argument to decode_line_1. | |
1873 | RESULT is a pointer to a symtabs_and_lines structure which will be | |
1874 | filled in on success. | |
1875 | This function returns 1 if a label was found, 0 otherwise. */ | |
1876 | ||
1877 | static int | |
1878 | decode_label (char *copy, char ***canonical, struct symtabs_and_lines *result) | |
1879 | { | |
1880 | struct symbol *sym; | |
1881 | ||
1882 | sym = lookup_symbol (copy, get_selected_block (0), LABEL_DOMAIN, 0); | |
1883 | ||
1884 | if (sym != NULL) | |
1885 | *result = symbol_found (0, canonical, copy, sym, NULL); | |
1886 | ||
1887 | return sym != NULL; | |
1888 | } | |
1889 | ||
88d262ca | 1890 | /* Decode a linespec that's a variable. If FILE_SYMTAB is non-NULL, |
3e43a32a MS |
1891 | look in that symtab's static variables first. If NOT_FOUND_PTR is |
1892 | not NULL and the function cannot be found, store boolean true in | |
1893 | the location pointed to and do not issue an error message. */ | |
bca02a8a DC |
1894 | |
1895 | static struct symtabs_and_lines | |
1896 | decode_variable (char *copy, int funfirstline, char ***canonical, | |
68219205 | 1897 | struct symtab *file_symtab, int *not_found_ptr) |
bca02a8a DC |
1898 | { |
1899 | struct symbol *sym; | |
bca02a8a DC |
1900 | struct minimal_symbol *msymbol; |
1901 | ||
1902 | sym = lookup_symbol (copy, | |
88d262ca DC |
1903 | (file_symtab |
1904 | ? BLOCKVECTOR_BLOCK (BLOCKVECTOR (file_symtab), | |
1905 | STATIC_BLOCK) | |
bca02a8a | 1906 | : get_selected_block (0)), |
2570f2b7 | 1907 | VAR_DOMAIN, 0); |
bca02a8a DC |
1908 | |
1909 | if (sym != NULL) | |
2570f2b7 | 1910 | return symbol_found (funfirstline, canonical, copy, sym, file_symtab); |
bca02a8a DC |
1911 | |
1912 | msymbol = lookup_minimal_symbol (copy, NULL, NULL); | |
1913 | ||
1914 | if (msymbol != NULL) | |
1915 | return minsym_found (funfirstline, msymbol); | |
1916 | ||
68219205 | 1917 | if (not_found_ptr) |
05ff989b | 1918 | *not_found_ptr = 1; |
b96e2927 PA |
1919 | |
1920 | if (!have_full_symbols () | |
1921 | && !have_partial_symbols () | |
1922 | && !have_minimal_symbols ()) | |
1923 | throw_error (NOT_FOUND_ERROR, | |
1924 | _("No symbol table is loaded. Use the \"file\" command.")); | |
109c3e39 | 1925 | throw_error (NOT_FOUND_ERROR, _("Function \"%s\" not defined."), copy); |
bca02a8a DC |
1926 | } |
1927 | ||
1928 | ||
14e91ac5 DC |
1929 | \f |
1930 | ||
413dad4d DC |
1931 | /* Now come some functions that are called from multiple places within |
1932 | decode_line_1. */ | |
1933 | ||
1934 | /* We've found a symbol SYM to associate with our linespec; build a | |
1935 | corresponding struct symtabs_and_lines. */ | |
1936 | ||
1937 | static struct symtabs_and_lines | |
1938 | symbol_found (int funfirstline, char ***canonical, char *copy, | |
2570f2b7 | 1939 | struct symbol *sym, struct symtab *file_symtab) |
413dad4d DC |
1940 | { |
1941 | struct symtabs_and_lines values; | |
1942 | ||
1943 | if (SYMBOL_CLASS (sym) == LOC_BLOCK) | |
50641945 | 1944 | { |
413dad4d | 1945 | /* Arg is the name of a function */ |
50641945 FN |
1946 | values.sals = (struct symtab_and_line *) |
1947 | xmalloc (sizeof (struct symtab_and_line)); | |
413dad4d DC |
1948 | values.sals[0] = find_function_start_sal (sym, funfirstline); |
1949 | values.nelts = 1; | |
1950 | ||
1951 | /* Don't use the SYMBOL_LINE; if used at all it points to | |
1952 | the line containing the parameters or thereabouts, not | |
1953 | the first line of code. */ | |
1954 | ||
1955 | /* We might need a canonical line spec if it is a static | |
1956 | function. */ | |
88d262ca | 1957 | if (file_symtab == 0) |
50641945 | 1958 | { |
2570f2b7 | 1959 | struct blockvector *bv = BLOCKVECTOR (SYMBOL_SYMTAB (sym)); |
413dad4d | 1960 | struct block *b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); |
e0881a8e | 1961 | |
94af9270 | 1962 | if (lookup_block_symbol (b, copy, VAR_DOMAIN) != NULL) |
413dad4d | 1963 | build_canonical_line_spec (values.sals, copy, canonical); |
50641945 | 1964 | } |
50641945 FN |
1965 | return values; |
1966 | } | |
413dad4d DC |
1967 | else |
1968 | { | |
0f5238ed | 1969 | if (funfirstline && SYMBOL_CLASS (sym) != LOC_LABEL) |
8a3fe4f8 | 1970 | error (_("\"%s\" is not a function"), copy); |
413dad4d DC |
1971 | else if (SYMBOL_LINE (sym) != 0) |
1972 | { | |
1973 | /* We know its line number. */ | |
1974 | values.sals = (struct symtab_and_line *) | |
1975 | xmalloc (sizeof (struct symtab_and_line)); | |
1976 | values.nelts = 1; | |
1977 | memset (&values.sals[0], 0, sizeof (values.sals[0])); | |
2570f2b7 | 1978 | values.sals[0].symtab = SYMBOL_SYMTAB (sym); |
413dad4d | 1979 | values.sals[0].line = SYMBOL_LINE (sym); |
0f5238ed | 1980 | values.sals[0].pspace = SYMTAB_PSPACE (SYMBOL_SYMTAB (sym)); |
413dad4d DC |
1981 | return values; |
1982 | } | |
1983 | else | |
1984 | /* This can happen if it is compiled with a compiler which doesn't | |
1985 | put out line numbers for variables. */ | |
1986 | /* FIXME: Shouldn't we just set .line and .symtab to zero | |
1987 | and return? For example, "info line foo" could print | |
1988 | the address. */ | |
8a3fe4f8 | 1989 | error (_("Line number not known for symbol \"%s\""), copy); |
413dad4d DC |
1990 | } |
1991 | } | |
50641945 | 1992 | |
413dad4d DC |
1993 | /* We've found a minimal symbol MSYMBOL to associate with our |
1994 | linespec; build a corresponding struct symtabs_and_lines. */ | |
50641945 | 1995 | |
413dad4d DC |
1996 | static struct symtabs_and_lines |
1997 | minsym_found (int funfirstline, struct minimal_symbol *msymbol) | |
1998 | { | |
bccdca4a UW |
1999 | struct objfile *objfile = msymbol_objfile (msymbol); |
2000 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
413dad4d | 2001 | struct symtabs_and_lines values; |
bccdca4a | 2002 | CORE_ADDR pc; |
413dad4d DC |
2003 | |
2004 | values.sals = (struct symtab_and_line *) | |
2005 | xmalloc (sizeof (struct symtab_and_line)); | |
2006 | values.sals[0] = find_pc_sect_line (SYMBOL_VALUE_ADDRESS (msymbol), | |
714835d5 UW |
2007 | (struct obj_section *) 0, 0); |
2008 | values.sals[0].section = SYMBOL_OBJ_SECTION (msymbol); | |
bccdca4a UW |
2009 | |
2010 | /* The minimal symbol might point to a function descriptor; | |
2011 | resolve it to the actual code address instead. */ | |
2012 | pc = gdbarch_convert_from_func_ptr_addr (gdbarch, | |
2013 | values.sals[0].pc, | |
2014 | ¤t_target); | |
2015 | if (pc != values.sals[0].pc) | |
2016 | values.sals[0] = find_pc_sect_line (pc, NULL, 0); | |
2017 | ||
413dad4d | 2018 | if (funfirstline) |
059acae7 | 2019 | skip_prologue_sal (&values.sals[0]); |
e48883f7 | 2020 | |
413dad4d DC |
2021 | values.nelts = 1; |
2022 | return values; | |
50641945 | 2023 | } |