Commit | Line | Data |
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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" |
c00f8484 KS |
44 | #include <ctype.h> |
45 | #include "cli/cli-utils.h" | |
50641945 | 46 | |
1777feb0 | 47 | /* We share this one with symtab.c, but it is not exported widely. */ |
50641945 FN |
48 | |
49 | extern char *operator_chars (char *, char **); | |
50 | ||
1777feb0 | 51 | /* Prototypes for local functions. */ |
50641945 | 52 | |
44fe14ab DC |
53 | static void initialize_defaults (struct symtab **default_symtab, |
54 | int *default_line); | |
55 | ||
56 | static struct symtabs_and_lines decode_indirect (char **argptr); | |
57 | ||
0960f083 DC |
58 | static char *locate_first_half (char **argptr, int *is_quote_enclosed); |
59 | ||
d2630e69 AF |
60 | static struct symtabs_and_lines decode_objc (char **argptr, |
61 | int funfirstline, | |
62 | struct symtab *file_symtab, | |
7efd8fc2 | 63 | struct linespec_result *canonical, |
d2630e69 AF |
64 | char *saved_arg); |
65 | ||
614b3b14 DC |
66 | static struct symtabs_and_lines decode_compound (char **argptr, |
67 | int funfirstline, | |
7efd8fc2 | 68 | struct linespec_result *canonical, |
e8eb7bc5 | 69 | struct symtab *file_symtab, |
614b3b14 | 70 | char *saved_arg, |
58438ac1 | 71 | char *p); |
614b3b14 | 72 | |
e8eb7bc5 KS |
73 | static struct symbol *lookup_prefix_sym (char **argptr, char *p, |
74 | struct symtab *); | |
93d91629 | 75 | |
4224873a | 76 | static struct symtabs_and_lines find_method (int funfirstline, |
7efd8fc2 | 77 | struct linespec_result *canonical, |
4224873a DC |
78 | char *saved_arg, |
79 | char *copy, | |
80 | struct type *t, | |
e8eb7bc5 KS |
81 | struct symbol *sym_class, |
82 | struct symtab *); | |
4224873a | 83 | |
c25c4a8b JK |
84 | static void cplusplus_error (const char *name, const char *fmt, ...) |
85 | ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (2, 3); | |
50641945 FN |
86 | |
87 | static int total_number_of_methods (struct type *type); | |
88 | ||
53c5240f | 89 | static int find_methods (struct type *, char *, |
e8eb7bc5 | 90 | enum language, struct symbol **, struct symtab *); |
50641945 | 91 | |
aee8d8ba | 92 | static int add_matching_methods (int method_counter, struct type *t, |
53c5240f | 93 | enum language language, |
aee8d8ba DC |
94 | struct symbol **sym_arr); |
95 | ||
96 | static int add_constructors (int method_counter, struct type *t, | |
53c5240f | 97 | enum language language, |
aee8d8ba DC |
98 | struct symbol **sym_arr); |
99 | ||
50641945 | 100 | static void build_canonical_line_spec (struct symtab_and_line *, |
7efd8fc2 | 101 | char *, struct linespec_result *); |
50641945 FN |
102 | |
103 | static char *find_toplevel_char (char *s, char c); | |
104 | ||
889f28e2 AF |
105 | static int is_objc_method_format (const char *s); |
106 | ||
50641945 | 107 | static struct symtabs_and_lines decode_line_2 (struct symbol *[], |
7efd8fc2 TT |
108 | int, int, |
109 | struct linespec_result *); | |
50641945 | 110 | |
f3c39e76 | 111 | static struct symtab *symtab_from_filename (char **argptr, |
58438ac1 | 112 | char *p, int is_quote_enclosed); |
f3c39e76 | 113 | |
9ef07c8c TT |
114 | static struct symbol *find_function_symbol (char **argptr, char *p, |
115 | int is_quote_enclosed); | |
116 | ||
84fba31b DC |
117 | static struct |
118 | symtabs_and_lines decode_all_digits (char **argptr, | |
119 | struct symtab *default_symtab, | |
120 | int default_line, | |
7efd8fc2 | 121 | struct linespec_result *canonical, |
88d262ca | 122 | struct symtab *file_symtab, |
84fba31b DC |
123 | char *q); |
124 | ||
14e91ac5 DC |
125 | static struct symtabs_and_lines decode_dollar (char *copy, |
126 | int funfirstline, | |
127 | struct symtab *default_symtab, | |
7efd8fc2 | 128 | struct linespec_result *canonical, |
88d262ca | 129 | struct symtab *file_symtab); |
14e91ac5 | 130 | |
9ef07c8c TT |
131 | static int decode_label (struct symbol *function_symbol, |
132 | char *copy, struct linespec_result *canonical, | |
0f5238ed TT |
133 | struct symtabs_and_lines *result); |
134 | ||
bca02a8a DC |
135 | static struct symtabs_and_lines decode_variable (char *copy, |
136 | int funfirstline, | |
7efd8fc2 | 137 | struct linespec_result *canonical, |
58438ac1 | 138 | struct symtab *file_symtab); |
bca02a8a | 139 | |
413dad4d DC |
140 | static struct |
141 | symtabs_and_lines symbol_found (int funfirstline, | |
7efd8fc2 | 142 | struct linespec_result *canonical, |
413dad4d DC |
143 | char *copy, |
144 | struct symbol *sym, | |
9ef07c8c TT |
145 | struct symtab *file_symtab, |
146 | struct symbol *function_symbol); | |
413dad4d DC |
147 | |
148 | static struct | |
149 | symtabs_and_lines minsym_found (int funfirstline, | |
150 | struct minimal_symbol *msymbol); | |
151 | ||
1777feb0 | 152 | /* Helper functions. */ |
50641945 | 153 | |
255e7dbf AC |
154 | /* Issue a helpful hint on using the command completion feature on |
155 | single quoted demangled C++ symbols as part of the completion | |
156 | error. */ | |
50641945 | 157 | |
c25c4a8b | 158 | static void |
255e7dbf | 159 | cplusplus_error (const char *name, const char *fmt, ...) |
50641945 | 160 | { |
255e7dbf | 161 | struct ui_file *tmp_stream; |
f3a5f1de | 162 | char *message; |
e0881a8e | 163 | |
255e7dbf AC |
164 | tmp_stream = mem_fileopen (); |
165 | make_cleanup_ui_file_delete (tmp_stream); | |
166 | ||
167 | { | |
168 | va_list args; | |
e0881a8e | 169 | |
255e7dbf AC |
170 | va_start (args, fmt); |
171 | vfprintf_unfiltered (tmp_stream, fmt, args); | |
172 | va_end (args); | |
173 | } | |
174 | ||
50641945 FN |
175 | while (*name == '\'') |
176 | name++; | |
255e7dbf AC |
177 | fprintf_unfiltered (tmp_stream, |
178 | ("Hint: try '%s<TAB> or '%s<ESC-?>\n" | |
179 | "(Note leading single quote.)"), | |
180 | name, name); | |
f3a5f1de | 181 | |
759ef836 PA |
182 | message = ui_file_xstrdup (tmp_stream, NULL); |
183 | make_cleanup (xfree, message); | |
184 | throw_error (NOT_FOUND_ERROR, "%s", message); | |
50641945 FN |
185 | } |
186 | ||
187 | /* Return the number of methods described for TYPE, including the | |
1777feb0 | 188 | methods from types it derives from. This can't be done in the symbol |
50641945 FN |
189 | reader because the type of the baseclass might still be stubbed |
190 | when the definition of the derived class is parsed. */ | |
191 | ||
192 | static int | |
193 | total_number_of_methods (struct type *type) | |
194 | { | |
195 | int n; | |
196 | int count; | |
197 | ||
198 | CHECK_TYPEDEF (type); | |
b4ba55a1 | 199 | if (! HAVE_CPLUS_STRUCT (type)) |
50641945 FN |
200 | return 0; |
201 | count = TYPE_NFN_FIELDS_TOTAL (type); | |
202 | ||
203 | for (n = 0; n < TYPE_N_BASECLASSES (type); n++) | |
204 | count += total_number_of_methods (TYPE_BASECLASS (type, n)); | |
205 | ||
206 | return count; | |
207 | } | |
208 | ||
e8eb7bc5 KS |
209 | /* Returns the block to be used for symbol searches for the given SYMTAB, |
210 | which may be NULL. */ | |
211 | ||
212 | static struct block * | |
213 | get_search_block (struct symtab *symtab) | |
214 | { | |
215 | struct block *block; | |
216 | ||
217 | if (symtab != NULL) | |
218 | block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab), STATIC_BLOCK); | |
219 | else | |
220 | { | |
221 | enum language save_language; | |
222 | ||
223 | /* get_selected_block can change the current language when there is | |
224 | no selected frame yet. */ | |
225 | save_language = current_language->la_language; | |
226 | block = get_selected_block (0); | |
227 | set_language (save_language); | |
228 | } | |
229 | ||
230 | return block; | |
231 | } | |
232 | ||
50641945 FN |
233 | /* Recursive helper function for decode_line_1. |
234 | Look for methods named NAME in type T. | |
235 | Return number of matches. | |
236 | Put matches in SYM_ARR, which should have been allocated with | |
237 | a size of total_number_of_methods (T) * sizeof (struct symbol *). | |
238 | Note that this function is g++ specific. */ | |
239 | ||
240 | static int | |
53c5240f | 241 | find_methods (struct type *t, char *name, enum language language, |
e8eb7bc5 | 242 | struct symbol **sym_arr, struct symtab *file_symtab) |
50641945 FN |
243 | { |
244 | int i1 = 0; | |
245 | int ibase; | |
50641945 | 246 | char *class_name = type_name_no_tag (t); |
c00f8484 KS |
247 | struct cleanup *cleanup; |
248 | char *canon; | |
249 | ||
250 | /* NAME is typed by the user: it needs to be canonicalized before | |
251 | passing to lookup_symbol. */ | |
252 | canon = cp_canonicalize_string (name); | |
253 | if (canon != NULL) | |
254 | { | |
255 | name = canon; | |
256 | cleanup = make_cleanup (xfree, name); | |
257 | } | |
258 | else | |
259 | cleanup = make_cleanup (null_cleanup, NULL); | |
50641945 FN |
260 | |
261 | /* Ignore this class if it doesn't have a name. This is ugly, but | |
262 | unless we figure out how to get the physname without the name of | |
263 | the class, then the loop can't do any good. */ | |
264 | if (class_name | |
e8eb7bc5 | 265 | && (lookup_symbol_in_language (class_name, get_search_block (file_symtab), |
2570f2b7 | 266 | STRUCT_DOMAIN, language, (int *) NULL))) |
50641945 FN |
267 | { |
268 | int method_counter; | |
5c717440 | 269 | int name_len = strlen (name); |
50641945 | 270 | |
8bd1f2c6 | 271 | CHECK_TYPEDEF (t); |
50641945 FN |
272 | |
273 | /* Loop over each method name. At this level, all overloads of a name | |
274 | are counted as a single name. There is an inner loop which loops over | |
275 | each overload. */ | |
276 | ||
277 | for (method_counter = TYPE_NFN_FIELDS (t) - 1; | |
278 | method_counter >= 0; | |
279 | --method_counter) | |
280 | { | |
50641945 FN |
281 | char *method_name = TYPE_FN_FIELDLIST_NAME (t, method_counter); |
282 | char dem_opname[64]; | |
283 | ||
284 | if (strncmp (method_name, "__", 2) == 0 || | |
285 | strncmp (method_name, "op", 2) == 0 || | |
286 | strncmp (method_name, "type", 4) == 0) | |
287 | { | |
288 | if (cplus_demangle_opname (method_name, dem_opname, DMGL_ANSI)) | |
289 | method_name = dem_opname; | |
290 | else if (cplus_demangle_opname (method_name, dem_opname, 0)) | |
291 | method_name = dem_opname; | |
292 | } | |
293 | ||
13b57657 | 294 | if (strcmp_iw (name, method_name) == 0) |
50641945 | 295 | /* Find all the overloaded methods with that name. */ |
53c5240f | 296 | i1 += add_matching_methods (method_counter, t, language, |
aee8d8ba | 297 | sym_arr + i1); |
5c717440 DJ |
298 | else if (strncmp (class_name, name, name_len) == 0 |
299 | && (class_name[name_len] == '\0' | |
300 | || class_name[name_len] == '<')) | |
53c5240f | 301 | i1 += add_constructors (method_counter, t, language, |
aee8d8ba | 302 | sym_arr + i1); |
50641945 FN |
303 | } |
304 | } | |
305 | ||
306 | /* Only search baseclasses if there is no match yet, since names in | |
307 | derived classes override those in baseclasses. | |
308 | ||
309 | FIXME: The above is not true; it is only true of member functions | |
310 | if they have the same number of arguments (??? - section 13.1 of the | |
311 | ARM says the function members are not in the same scope but doesn't | |
312 | really spell out the rules in a way I understand. In any case, if | |
313 | the number of arguments differ this is a case in which we can overload | |
314 | rather than hiding without any problem, and gcc 2.4.5 does overload | |
315 | rather than hiding in this case). */ | |
316 | ||
317 | if (i1 == 0) | |
318 | for (ibase = 0; ibase < TYPE_N_BASECLASSES (t); ibase++) | |
53c5240f | 319 | i1 += find_methods (TYPE_BASECLASS (t, ibase), name, |
e8eb7bc5 | 320 | language, sym_arr + i1, file_symtab); |
50641945 | 321 | |
c00f8484 | 322 | do_cleanups (cleanup); |
50641945 FN |
323 | return i1; |
324 | } | |
325 | ||
aee8d8ba DC |
326 | /* Add the symbols associated to methods of the class whose type is T |
327 | and whose name matches the method indexed by METHOD_COUNTER in the | |
328 | array SYM_ARR. Return the number of methods added. */ | |
329 | ||
330 | static int | |
331 | add_matching_methods (int method_counter, struct type *t, | |
53c5240f | 332 | enum language language, struct symbol **sym_arr) |
aee8d8ba DC |
333 | { |
334 | int field_counter; | |
335 | int i1 = 0; | |
336 | ||
337 | for (field_counter = TYPE_FN_FIELDLIST_LENGTH (t, method_counter) - 1; | |
338 | field_counter >= 0; | |
339 | --field_counter) | |
340 | { | |
341 | struct fn_field *f; | |
1d06ead6 | 342 | const char *phys_name; |
aee8d8ba DC |
343 | |
344 | f = TYPE_FN_FIELDLIST1 (t, method_counter); | |
345 | ||
346 | if (TYPE_FN_FIELD_STUB (f, field_counter)) | |
347 | { | |
1d06ead6 | 348 | char *tmp_name, *tmp2; |
aee8d8ba DC |
349 | |
350 | tmp_name = gdb_mangle_name (t, | |
351 | method_counter, | |
352 | field_counter); | |
1d06ead6 TT |
353 | tmp2 = alloca (strlen (tmp_name) + 1); |
354 | strcpy (tmp2, tmp_name); | |
aee8d8ba | 355 | xfree (tmp_name); |
1d06ead6 | 356 | phys_name = tmp2; |
aee8d8ba DC |
357 | } |
358 | else | |
359 | phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter); | |
53c5240f | 360 | |
53c5240f | 361 | sym_arr[i1] = lookup_symbol_in_language (phys_name, |
aee8d8ba | 362 | NULL, VAR_DOMAIN, |
53c5240f | 363 | language, |
2570f2b7 | 364 | (int *) NULL); |
aee8d8ba DC |
365 | if (sym_arr[i1]) |
366 | i1++; | |
367 | else | |
368 | { | |
369 | /* This error message gets printed, but the method | |
1777feb0 | 370 | still seems to be found. |
aee8d8ba DC |
371 | fputs_filtered("(Cannot find method ", gdb_stdout); |
372 | fprintf_symbol_filtered (gdb_stdout, phys_name, | |
1777feb0 MS |
373 | language_cplus, |
374 | DMGL_PARAMS | DMGL_ANSI); | |
aee8d8ba DC |
375 | fputs_filtered(" - possibly inlined.)\n", gdb_stdout); |
376 | */ | |
377 | } | |
378 | } | |
379 | ||
380 | return i1; | |
381 | } | |
382 | ||
383 | /* Add the symbols associated to constructors of the class whose type | |
384 | is CLASS_TYPE and which are indexed by by METHOD_COUNTER to the | |
385 | array SYM_ARR. Return the number of methods added. */ | |
386 | ||
387 | static int | |
388 | add_constructors (int method_counter, struct type *t, | |
53c5240f | 389 | enum language language, struct symbol **sym_arr) |
aee8d8ba DC |
390 | { |
391 | int field_counter; | |
392 | int i1 = 0; | |
393 | ||
394 | /* For GCC 3.x and stabs, constructors and destructors | |
395 | have names like __base_ctor and __complete_dtor. | |
396 | Check the physname for now if we're looking for a | |
397 | constructor. */ | |
398 | for (field_counter | |
399 | = TYPE_FN_FIELDLIST_LENGTH (t, method_counter) - 1; | |
400 | field_counter >= 0; | |
401 | --field_counter) | |
402 | { | |
403 | struct fn_field *f; | |
1d06ead6 | 404 | const char *phys_name; |
53c5240f | 405 | |
aee8d8ba DC |
406 | f = TYPE_FN_FIELDLIST1 (t, method_counter); |
407 | ||
408 | /* GCC 3.x will never produce stabs stub methods, so | |
409 | we don't need to handle this case. */ | |
410 | if (TYPE_FN_FIELD_STUB (f, field_counter)) | |
411 | continue; | |
412 | phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter); | |
413 | if (! is_constructor_name (phys_name)) | |
414 | continue; | |
415 | ||
416 | /* If this method is actually defined, include it in the | |
417 | list. */ | |
53c5240f | 418 | sym_arr[i1] = lookup_symbol_in_language (phys_name, |
aee8d8ba | 419 | NULL, VAR_DOMAIN, |
53c5240f | 420 | language, |
2570f2b7 | 421 | (int *) NULL); |
aee8d8ba DC |
422 | if (sym_arr[i1]) |
423 | i1++; | |
424 | } | |
425 | ||
426 | return i1; | |
427 | } | |
428 | ||
50641945 FN |
429 | /* Helper function for decode_line_1. |
430 | Build a canonical line spec in CANONICAL if it is non-NULL and if | |
431 | the SAL has a symtab. | |
432 | If SYMNAME is non-NULL the canonical line spec is `filename:symname'. | |
433 | If SYMNAME is NULL the line number from SAL is used and the canonical | |
434 | line spec is `filename:linenum'. */ | |
435 | ||
436 | static void | |
437 | build_canonical_line_spec (struct symtab_and_line *sal, char *symname, | |
7efd8fc2 | 438 | struct linespec_result *canonical) |
50641945 FN |
439 | { |
440 | char **canonical_arr; | |
441 | char *canonical_name; | |
442 | char *filename; | |
443 | struct symtab *s = sal->symtab; | |
444 | ||
445 | if (s == (struct symtab *) NULL | |
446 | || s->filename == (char *) NULL | |
7efd8fc2 | 447 | || canonical == NULL) |
50641945 FN |
448 | return; |
449 | ||
450 | canonical_arr = (char **) xmalloc (sizeof (char *)); | |
7efd8fc2 | 451 | canonical->canonical = canonical_arr; |
50641945 FN |
452 | |
453 | filename = s->filename; | |
454 | if (symname != NULL) | |
455 | { | |
456 | canonical_name = xmalloc (strlen (filename) + strlen (symname) + 2); | |
457 | sprintf (canonical_name, "%s:%s", filename, symname); | |
458 | } | |
459 | else | |
460 | { | |
461 | canonical_name = xmalloc (strlen (filename) + 30); | |
462 | sprintf (canonical_name, "%s:%d", filename, sal->line); | |
463 | } | |
464 | canonical_arr[0] = canonical_name; | |
465 | } | |
466 | ||
467 | ||
468 | ||
469 | /* Find an instance of the character C in the string S that is outside | |
470 | of all parenthesis pairs, single-quoted strings, and double-quoted | |
8120c9d5 EZ |
471 | strings. Also, ignore the char within a template name, like a ',' |
472 | within foo<int, int>. */ | |
473 | ||
50641945 FN |
474 | static char * |
475 | find_toplevel_char (char *s, char c) | |
476 | { | |
477 | int quoted = 0; /* zero if we're not in quotes; | |
478 | '"' if we're in a double-quoted string; | |
479 | '\'' if we're in a single-quoted string. */ | |
a04257e6 | 480 | int depth = 0; /* Number of unclosed parens we've seen. */ |
50641945 FN |
481 | char *scan; |
482 | ||
483 | for (scan = s; *scan; scan++) | |
484 | { | |
485 | if (quoted) | |
486 | { | |
487 | if (*scan == quoted) | |
488 | quoted = 0; | |
489 | else if (*scan == '\\' && *(scan + 1)) | |
490 | scan++; | |
491 | } | |
492 | else if (*scan == c && ! quoted && depth == 0) | |
493 | return scan; | |
494 | else if (*scan == '"' || *scan == '\'') | |
495 | quoted = *scan; | |
8120c9d5 | 496 | else if (*scan == '(' || *scan == '<') |
50641945 | 497 | depth++; |
8120c9d5 | 498 | else if ((*scan == ')' || *scan == '>') && depth > 0) |
50641945 FN |
499 | depth--; |
500 | } | |
501 | ||
502 | return 0; | |
503 | } | |
504 | ||
889f28e2 | 505 | /* Determines if the gives string corresponds to an Objective-C method |
1777feb0 | 506 | representation, such as -[Foo bar:] or +[Foo bar]. Objective-C symbols |
889f28e2 AF |
507 | are allowed to have spaces and parentheses in them. */ |
508 | ||
509 | static int | |
510 | is_objc_method_format (const char *s) | |
511 | { | |
512 | if (s == NULL || *s == '\0') | |
513 | return 0; | |
514 | /* Handle arguments with the format FILENAME:SYMBOL. */ | |
515 | if ((s[0] == ':') && (strchr ("+-", s[1]) != NULL) | |
516 | && (s[2] == '[') && strchr(s, ']')) | |
517 | return 1; | |
518 | /* Handle arguments that are just SYMBOL. */ | |
519 | else if ((strchr ("+-", s[0]) != NULL) && (s[1] == '[') && strchr(s, ']')) | |
520 | return 1; | |
521 | return 0; | |
522 | } | |
523 | ||
50641945 FN |
524 | /* Given a list of NELTS symbols in SYM_ARR, return a list of lines to |
525 | operate on (ask user if necessary). | |
526 | If CANONICAL is non-NULL return a corresponding array of mangled names | |
527 | as canonical line specs there. */ | |
528 | ||
529 | static struct symtabs_and_lines | |
530 | decode_line_2 (struct symbol *sym_arr[], int nelts, int funfirstline, | |
7efd8fc2 | 531 | struct linespec_result *canonical) |
50641945 FN |
532 | { |
533 | struct symtabs_and_lines values, return_values; | |
534 | char *args, *arg1; | |
535 | int i; | |
536 | char *prompt; | |
537 | char *symname; | |
538 | struct cleanup *old_chain; | |
539 | char **canonical_arr = (char **) NULL; | |
717d2f5a | 540 | const char *select_mode = multiple_symbols_select_mode (); |
50641945 | 541 | |
717d2f5a | 542 | if (select_mode == multiple_symbols_cancel) |
3e43a32a MS |
543 | error (_("canceled because the command is ambiguous\n" |
544 | "See set/show multiple-symbol.")); | |
717d2f5a | 545 | |
50641945 FN |
546 | values.sals = (struct symtab_and_line *) |
547 | alloca (nelts * sizeof (struct symtab_and_line)); | |
548 | return_values.sals = (struct symtab_and_line *) | |
549 | xmalloc (nelts * sizeof (struct symtab_and_line)); | |
b8c9b27d | 550 | old_chain = make_cleanup (xfree, return_values.sals); |
50641945 FN |
551 | |
552 | if (canonical) | |
553 | { | |
554 | canonical_arr = (char **) xmalloc (nelts * sizeof (char *)); | |
b8c9b27d | 555 | make_cleanup (xfree, canonical_arr); |
50641945 | 556 | memset (canonical_arr, 0, nelts * sizeof (char *)); |
7efd8fc2 | 557 | canonical->canonical = canonical_arr; |
50641945 FN |
558 | } |
559 | ||
560 | i = 0; | |
50641945 FN |
561 | while (i < nelts) |
562 | { | |
a04257e6 | 563 | init_sal (&return_values.sals[i]); /* Initialize to zeroes. */ |
fe39c653 | 564 | init_sal (&values.sals[i]); |
50641945 | 565 | if (sym_arr[i] && SYMBOL_CLASS (sym_arr[i]) == LOC_BLOCK) |
717d2f5a | 566 | values.sals[i] = find_function_start_sal (sym_arr[i], funfirstline); |
50641945 FN |
567 | i++; |
568 | } | |
569 | ||
717d2f5a JB |
570 | /* If select_mode is "all", then do not print the multiple-choice |
571 | menu and act as if the user had chosen choice "1" (all). */ | |
dc67126b NR |
572 | if (select_mode == multiple_symbols_all |
573 | || ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ()))) | |
717d2f5a JB |
574 | args = "1"; |
575 | else | |
50641945 | 576 | { |
717d2f5a JB |
577 | i = 0; |
578 | printf_unfiltered (_("[0] cancel\n[1] all\n")); | |
579 | while (i < nelts) | |
580 | { | |
581 | if (sym_arr[i] && SYMBOL_CLASS (sym_arr[i]) == LOC_BLOCK) | |
582 | { | |
583 | if (values.sals[i].symtab) | |
584 | printf_unfiltered ("[%d] %s at %s:%d\n", | |
585 | (i + 2), | |
586 | SYMBOL_PRINT_NAME (sym_arr[i]), | |
587 | values.sals[i].symtab->filename, | |
588 | values.sals[i].line); | |
589 | else | |
3e43a32a MS |
590 | printf_unfiltered (_("[%d] %s at ?FILE:%d [No symtab? " |
591 | "Probably broken debug info...]\n"), | |
717d2f5a JB |
592 | (i + 2), |
593 | SYMBOL_PRINT_NAME (sym_arr[i]), | |
594 | values.sals[i].line); | |
595 | ||
596 | } | |
597 | else | |
598 | printf_unfiltered (_("?HERE\n")); | |
599 | i++; | |
600 | } | |
601 | ||
602 | prompt = getenv ("PS2"); | |
603 | if (prompt == NULL) | |
604 | { | |
605 | prompt = "> "; | |
606 | } | |
607 | args = command_line_input (prompt, 0, "overload-choice"); | |
50641945 | 608 | } |
50641945 FN |
609 | |
610 | if (args == 0 || *args == 0) | |
e2e0b3e5 | 611 | error_no_arg (_("one or more choice numbers")); |
50641945 FN |
612 | |
613 | i = 0; | |
614 | while (*args) | |
615 | { | |
616 | int num; | |
617 | ||
618 | arg1 = args; | |
619 | while (*arg1 >= '0' && *arg1 <= '9') | |
620 | arg1++; | |
621 | if (*arg1 && *arg1 != ' ' && *arg1 != '\t') | |
8a3fe4f8 | 622 | error (_("Arguments must be choice numbers.")); |
50641945 FN |
623 | |
624 | num = atoi (args); | |
625 | ||
626 | if (num == 0) | |
8a3fe4f8 | 627 | error (_("canceled")); |
50641945 FN |
628 | else if (num == 1) |
629 | { | |
630 | if (canonical_arr) | |
631 | { | |
632 | for (i = 0; i < nelts; i++) | |
633 | { | |
634 | if (canonical_arr[i] == NULL) | |
635 | { | |
3567439c | 636 | symname = SYMBOL_LINKAGE_NAME (sym_arr[i]); |
1b36a34b | 637 | canonical_arr[i] = xstrdup (symname); |
50641945 FN |
638 | } |
639 | } | |
640 | } | |
641 | memcpy (return_values.sals, values.sals, | |
642 | (nelts * sizeof (struct symtab_and_line))); | |
643 | return_values.nelts = nelts; | |
644 | discard_cleanups (old_chain); | |
645 | return return_values; | |
646 | } | |
647 | ||
648 | if (num >= nelts + 2) | |
649 | { | |
a3f17187 | 650 | printf_unfiltered (_("No choice number %d.\n"), num); |
50641945 FN |
651 | } |
652 | else | |
653 | { | |
654 | num -= 2; | |
655 | if (values.sals[num].pc) | |
656 | { | |
657 | if (canonical_arr) | |
658 | { | |
3567439c | 659 | symname = SYMBOL_LINKAGE_NAME (sym_arr[num]); |
b8c9b27d | 660 | make_cleanup (xfree, symname); |
1b36a34b | 661 | canonical_arr[i] = xstrdup (symname); |
50641945 FN |
662 | } |
663 | return_values.sals[i++] = values.sals[num]; | |
664 | values.sals[num].pc = 0; | |
665 | } | |
666 | else | |
667 | { | |
3e43a32a MS |
668 | printf_unfiltered (_("duplicate request for %d ignored.\n"), |
669 | num); | |
50641945 FN |
670 | } |
671 | } | |
672 | ||
673 | args = arg1; | |
674 | while (*args == ' ' || *args == '\t') | |
675 | args++; | |
676 | } | |
677 | return_values.nelts = i; | |
678 | discard_cleanups (old_chain); | |
679 | return return_values; | |
680 | } | |
94af9270 | 681 | |
3d50dd94 JK |
682 | /* Valid delimiters for linespec keywords "if", "thread" or "task". */ |
683 | ||
684 | static int | |
685 | is_linespec_boundary (char c) | |
686 | { | |
687 | return c == ' ' || c == '\t' || c == '\0' || c == ','; | |
688 | } | |
689 | ||
94af9270 KS |
690 | /* A helper function for decode_line_1 and friends which skips P |
691 | past any method overload information at the beginning of P, e.g., | |
692 | "(const struct foo *)". | |
693 | ||
694 | This function assumes that P has already been validated to contain | |
695 | overload information, and it will assert if *P != '('. */ | |
696 | static char * | |
697 | find_method_overload_end (char *p) | |
698 | { | |
699 | int depth = 0; | |
700 | ||
701 | gdb_assert (*p == '('); | |
702 | ||
703 | while (*p) | |
704 | { | |
705 | if (*p == '(') | |
706 | ++depth; | |
707 | else if (*p == ')') | |
708 | { | |
709 | if (--depth == 0) | |
710 | { | |
711 | ++p; | |
712 | break; | |
713 | } | |
714 | } | |
715 | ++p; | |
716 | } | |
717 | ||
718 | return p; | |
719 | } | |
c00f8484 | 720 | |
c00f8484 | 721 | /* Keep important information used when looking up a name. This includes |
3d50dd94 JK |
722 | template parameters, overload information, and important keywords, including |
723 | the possible Java trailing type. */ | |
c00f8484 KS |
724 | |
725 | static char * | |
3d50dd94 | 726 | keep_name_info (char *p, int on_boundary) |
c00f8484 | 727 | { |
3d50dd94 JK |
728 | const char *quotes = get_gdb_completer_quote_characters (); |
729 | char *saved_p = p; | |
730 | int nest = 0; | |
c00f8484 | 731 | |
3d50dd94 JK |
732 | while (*p) |
733 | { | |
734 | if (strchr (quotes, *p)) | |
735 | break; | |
c00f8484 | 736 | |
3d50dd94 JK |
737 | if (*p == ',' && !nest) |
738 | break; | |
c00f8484 | 739 | |
3d50dd94 JK |
740 | if (on_boundary && !nest) |
741 | { | |
742 | const char *const words[] = { "if", "thread", "task" }; | |
743 | int wordi; | |
c00f8484 | 744 | |
3d50dd94 JK |
745 | for (wordi = 0; wordi < ARRAY_SIZE (words); wordi++) |
746 | if (strncmp (p, words[wordi], strlen (words[wordi])) == 0 | |
747 | && is_linespec_boundary (p[strlen (words[wordi])])) | |
748 | break; | |
749 | if (wordi < ARRAY_SIZE (words)) | |
750 | break; | |
751 | } | |
c00f8484 | 752 | |
3d50dd94 JK |
753 | if (*p == '(' || *p == '<' || *p == '[') |
754 | nest++; | |
755 | else if ((*p == ')' || *p == '>' || *p == ']') && nest > 0) | |
756 | nest--; | |
c00f8484 | 757 | |
3d50dd94 JK |
758 | p++; |
759 | ||
760 | /* The ',' check could fail on "operator ,". */ | |
761 | p += cp_validate_operator (p); | |
762 | ||
763 | on_boundary = is_linespec_boundary (p[-1]); | |
f17170e5 | 764 | } |
c00f8484 | 765 | |
3d50dd94 JK |
766 | while (p > saved_p && is_linespec_boundary (p[-1])) |
767 | p--; | |
768 | ||
769 | return p; | |
c00f8484 KS |
770 | } |
771 | ||
50641945 | 772 | \f |
1777feb0 | 773 | /* The parser of linespec itself. */ |
50641945 FN |
774 | |
775 | /* Parse a string that specifies a line number. | |
776 | Pass the address of a char * variable; that variable will be | |
777 | advanced over the characters actually parsed. | |
778 | ||
779 | The string can be: | |
780 | ||
781 | LINENUM -- that line number in current file. PC returned is 0. | |
782 | FILE:LINENUM -- that line in that file. PC returned is 0. | |
783 | FUNCTION -- line number of openbrace of that function. | |
784 | PC returned is the start of the function. | |
0f5238ed | 785 | LABEL -- a label in the current scope |
50641945 FN |
786 | VARIABLE -- line number of definition of that variable. |
787 | PC returned is 0. | |
788 | FILE:FUNCTION -- likewise, but prefer functions in that file. | |
789 | *EXPR -- line in which address EXPR appears. | |
790 | ||
791 | This may all be followed by an "if EXPR", which we ignore. | |
792 | ||
793 | FUNCTION may be an undebuggable function found in minimal symbol table. | |
794 | ||
795 | If the argument FUNFIRSTLINE is nonzero, we want the first line | |
796 | of real code inside a function when a function is specified, and it is | |
797 | not OK to specify a variable or type to get its line number. | |
798 | ||
799 | DEFAULT_SYMTAB specifies the file to use if none is specified. | |
800 | It defaults to current_source_symtab. | |
801 | DEFAULT_LINE specifies the line number to use for relative | |
802 | line numbers (that start with signs). Defaults to current_source_line. | |
803 | If CANONICAL is non-NULL, store an array of strings containing the canonical | |
1777feb0 | 804 | line specs there if necessary. Currently overloaded member functions and |
50641945 | 805 | line numbers or static functions without a filename yield a canonical |
1777feb0 | 806 | line spec. The array and the line spec strings are allocated on the heap, |
50641945 FN |
807 | it is the callers responsibility to free them. |
808 | ||
809 | Note that it is possible to return zero for the symtab | |
810 | if no file is validly specified. Callers must check that. | |
58438ac1 | 811 | Also, the line number returned may be invalid. */ |
50641945 FN |
812 | |
813 | /* We allow single quotes in various places. This is a hideous | |
814 | kludge, which exists because the completer can't yet deal with the | |
815 | lack of single quotes. FIXME: write a linespec_completer which we | |
816 | can use as appropriate instead of make_symbol_completion_list. */ | |
817 | ||
818 | struct symtabs_and_lines | |
819 | decode_line_1 (char **argptr, int funfirstline, struct symtab *default_symtab, | |
58438ac1 | 820 | int default_line, struct linespec_result *canonical) |
50641945 | 821 | { |
f3c39e76 | 822 | char *p; |
614b3b14 | 823 | char *q; |
88d262ca DC |
824 | /* If a file name is specified, this is its symtab. */ |
825 | struct symtab *file_symtab = NULL; | |
50641945 | 826 | |
50641945 | 827 | char *copy; |
636b1a6d DC |
828 | /* This says whether or not something in *ARGPTR is quoted with |
829 | completer_quotes (i.e. with single quotes). */ | |
e325fb69 | 830 | int is_quoted; |
e5dd4106 | 831 | /* Is *ARGPTR enclosed in double quotes? */ |
50641945 | 832 | int is_quote_enclosed; |
d2630e69 | 833 | int is_objc_method = 0; |
50641945 | 834 | char *saved_arg = *argptr; |
791dfb64 DJ |
835 | /* If IS_QUOTED, the end of the quoted bit. */ |
836 | char *end_quote = NULL; | |
e8eb7bc5 KS |
837 | /* Is *ARGPTR enclosed in single quotes? */ |
838 | int is_squote_enclosed = 0; | |
0e0b460e KS |
839 | /* The "first half" of the linespec. */ |
840 | char *first_half; | |
50641945 | 841 | |
9ef07c8c TT |
842 | /* If we are parsing `function:label', this holds the symbol for the |
843 | function. */ | |
844 | struct symbol *function_symbol = NULL; | |
845 | /* If FUNCTION_SYMBOL is not NULL, then this is the exception that | |
846 | was thrown when trying to parse a filename. */ | |
847 | volatile struct gdb_exception file_exception; | |
848 | ||
50641945 FN |
849 | /* Defaults have defaults. */ |
850 | ||
44fe14ab DC |
851 | initialize_defaults (&default_symtab, &default_line); |
852 | ||
a04257e6 | 853 | /* See if arg is *PC. */ |
50641945 | 854 | |
e325fb69 MS |
855 | if (**argptr == '*') |
856 | return decode_indirect (argptr); | |
5f01dbc0 | 857 | |
e325fb69 MS |
858 | is_quoted = (strchr (get_gdb_completer_quote_characters (), |
859 | **argptr) != NULL); | |
50641945 | 860 | |
791dfb64 | 861 | if (is_quoted) |
e8eb7bc5 KS |
862 | { |
863 | end_quote = skip_quoted (*argptr); | |
864 | if (*end_quote == '\0') | |
865 | is_squote_enclosed = 1; | |
866 | } | |
50641945 | 867 | |
0960f083 DC |
868 | /* Check to see if it's a multipart linespec (with colons or |
869 | periods). */ | |
50641945 | 870 | |
17763fd9 EZ |
871 | /* Locate the end of the first half of the linespec. |
872 | After the call, for instance, if the argptr string is "foo.c:123" | |
873 | p will point at "123". If there is only one part, like "foo", p | |
1777feb0 MS |
874 | will point to "". If this is a C++ name, like "A::B::foo", p will |
875 | point to "::B::foo". Argptr is not changed by this call. */ | |
50641945 | 876 | |
0e0b460e | 877 | first_half = p = locate_first_half (argptr, &is_quote_enclosed); |
50641945 | 878 | |
e8eb7bc5 KS |
879 | /* First things first: if ARGPTR starts with a filename, get its |
880 | symtab and strip the filename from ARGPTR. */ | |
881 | TRY_CATCH (file_exception, RETURN_MASK_ERROR) | |
882 | { | |
883 | file_symtab = symtab_from_filename (argptr, p, is_quote_enclosed); | |
884 | } | |
885 | ||
886 | if (file_exception.reason >= 0) | |
887 | { | |
888 | /* Check for single quotes on the non-filename part. */ | |
889 | is_quoted = (**argptr | |
890 | && strchr (get_gdb_completer_quote_characters (), | |
891 | **argptr) != NULL); | |
892 | if (is_quoted) | |
893 | end_quote = skip_quoted (*argptr); | |
894 | ||
895 | /* Locate the next "half" of the linespec. */ | |
896 | first_half = p = locate_first_half (argptr, &is_quote_enclosed); | |
897 | } | |
898 | ||
d2630e69 AF |
899 | /* Check if this is an Objective-C method (anything that starts with |
900 | a '+' or '-' and a '['). */ | |
889f28e2 | 901 | if (is_objc_method_format (p)) |
94af9270 | 902 | is_objc_method = 1; |
d2630e69 AF |
903 | |
904 | /* Check if the symbol could be an Objective-C selector. */ | |
905 | ||
906 | { | |
907 | struct symtabs_and_lines values; | |
e0881a8e | 908 | |
e8eb7bc5 | 909 | values = decode_objc (argptr, funfirstline, file_symtab, |
d2630e69 AF |
910 | canonical, saved_arg); |
911 | if (values.sals != NULL) | |
912 | return values; | |
913 | } | |
914 | ||
0960f083 | 915 | /* Does it look like there actually were two parts? */ |
50641945 | 916 | |
791dfb64 | 917 | if (p[0] == ':' || p[0] == '.') |
50641945 | 918 | { |
17763fd9 EZ |
919 | /* Is it a C++ or Java compound data structure? |
920 | The check on p[1] == ':' is capturing the case of "::", | |
1777feb0 | 921 | since p[0]==':' was checked above. |
17763fd9 EZ |
922 | Note that the call to decode_compound does everything |
923 | for us, including the lookup on the symbol table, so we | |
1777feb0 | 924 | can return now. */ |
17763fd9 | 925 | |
50641945 | 926 | if (p[0] == '.' || p[1] == ':') |
791dfb64 | 927 | { |
94af9270 | 928 | struct symtabs_and_lines values; |
dcf9f4ab JK |
929 | volatile struct gdb_exception ex; |
930 | char *saved_argptr = *argptr; | |
94af9270 KS |
931 | |
932 | if (is_quote_enclosed) | |
933 | ++saved_arg; | |
dcf9f4ab | 934 | |
2f741504 JK |
935 | /* Initialize it just to avoid a GCC false warning. */ |
936 | memset (&values, 0, sizeof (values)); | |
937 | ||
dcf9f4ab JK |
938 | TRY_CATCH (ex, RETURN_MASK_ERROR) |
939 | { | |
940 | values = decode_compound (argptr, funfirstline, canonical, | |
941 | file_symtab, saved_arg, p); | |
942 | } | |
e8eb7bc5 | 943 | if ((is_quoted || is_squote_enclosed) && **argptr == '\'') |
94af9270 | 944 | *argptr = *argptr + 1; |
50641945 | 945 | |
dcf9f4ab JK |
946 | if (ex.reason >= 0) |
947 | return values; | |
50641945 | 948 | |
dcf9f4ab JK |
949 | if (ex.error != NOT_FOUND_ERROR) |
950 | throw_exception (ex); | |
951 | ||
952 | *argptr = saved_argptr; | |
953 | } | |
954 | else | |
50641945 | 955 | { |
dcf9f4ab JK |
956 | /* If there was an exception looking up a specified filename earlier, |
957 | then check whether we were really given `function:label'. */ | |
958 | if (file_exception.reason < 0) | |
959 | { | |
960 | function_symbol = find_function_symbol (argptr, p, | |
961 | is_quote_enclosed); | |
962 | /* If we did not find a function, re-throw the original | |
963 | exception. */ | |
964 | if (!function_symbol) | |
965 | throw_exception (file_exception); | |
966 | } | |
967 | ||
968 | /* Check for single quotes on the non-filename part. */ | |
969 | if (!is_quoted) | |
970 | { | |
971 | is_quoted = (**argptr | |
972 | && strchr (get_gdb_completer_quote_characters (), | |
973 | **argptr) != NULL); | |
974 | if (is_quoted) | |
975 | end_quote = skip_quoted (*argptr); | |
976 | } | |
50641945 | 977 | } |
50641945 | 978 | } |
50641945 | 979 | |
bc882aa9 | 980 | /* file_symtab is specified file's symtab, or 0 if no file specified. |
9ef07c8c TT |
981 | If we are parsing `function:symbol', then FUNCTION_SYMBOL is the |
982 | function before the `:'. | |
50641945 FN |
983 | arg no longer contains the file name. */ |
984 | ||
0e0b460e KS |
985 | /* If the filename was quoted, we must re-check the quotation. */ |
986 | ||
987 | if (end_quote == first_half && *end_quote!= '\0') | |
988 | { | |
989 | is_quoted = (**argptr | |
990 | && strchr (get_gdb_completer_quote_characters (), | |
991 | **argptr) != NULL); | |
992 | if (is_quoted) | |
993 | end_quote = skip_quoted (*argptr); | |
994 | } | |
995 | ||
a04257e6 | 996 | /* Check whether arg is all digits (and sign). */ |
50641945 FN |
997 | |
998 | q = *argptr; | |
999 | if (*q == '-' || *q == '+') | |
1000 | q++; | |
1001 | while (*q >= '0' && *q <= '9') | |
1002 | q++; | |
1003 | ||
9ef07c8c TT |
1004 | if (q != *argptr && (*q == 0 || *q == ' ' || *q == '\t' || *q == ',') |
1005 | && function_symbol == NULL) | |
84fba31b DC |
1006 | /* We found a token consisting of all digits -- at least one digit. */ |
1007 | return decode_all_digits (argptr, default_symtab, default_line, | |
88d262ca | 1008 | canonical, file_symtab, q); |
50641945 FN |
1009 | |
1010 | /* Arg token is not digits => try it as a variable name | |
1011 | Find the next token (everything up to end or next whitespace). */ | |
1012 | ||
a04257e6 DC |
1013 | if (**argptr == '$') /* May be a convenience variable. */ |
1014 | /* One or two $ chars possible. */ | |
1015 | p = skip_quoted (*argptr + (((*argptr)[1] == '$') ? 2 : 1)); | |
e8eb7bc5 | 1016 | else if (is_quoted || is_squote_enclosed) |
50641945 | 1017 | { |
791dfb64 | 1018 | p = end_quote; |
50641945 | 1019 | if (p[-1] != '\'') |
8a3fe4f8 | 1020 | error (_("Unmatched single quote.")); |
50641945 | 1021 | } |
d2630e69 AF |
1022 | else if (is_objc_method) |
1023 | { | |
1777feb0 | 1024 | /* allow word separators in method names for Obj-C. */ |
d2630e69 AF |
1025 | p = skip_quoted_chars (*argptr, NULL, ""); |
1026 | } | |
50641945 FN |
1027 | else |
1028 | { | |
1029 | p = skip_quoted (*argptr); | |
1030 | } | |
1031 | ||
c00f8484 | 1032 | /* Keep any important naming information. */ |
3d50dd94 | 1033 | p = keep_name_info (p, p == saved_arg || is_linespec_boundary (p[-1])); |
94af9270 | 1034 | |
50641945 FN |
1035 | copy = (char *) alloca (p - *argptr + 1); |
1036 | memcpy (copy, *argptr, p - *argptr); | |
1037 | copy[p - *argptr] = '\0'; | |
1038 | if (p != *argptr | |
1039 | && copy[0] | |
1040 | && copy[0] == copy[p - *argptr - 1] | |
c5f0f3d0 | 1041 | && strchr (get_gdb_completer_quote_characters (), copy[0]) != NULL) |
50641945 FN |
1042 | { |
1043 | copy[p - *argptr - 1] = '\0'; | |
1044 | copy++; | |
1045 | } | |
e8eb7bc5 | 1046 | else if (is_quoted || is_squote_enclosed) |
791dfb64 | 1047 | copy[p - *argptr - 1] = '\0'; |
50641945 FN |
1048 | while (*p == ' ' || *p == '\t') |
1049 | p++; | |
1050 | *argptr = p; | |
1051 | ||
1052 | /* If it starts with $: may be a legitimate variable or routine name | |
1053 | (e.g. HP-UX millicode routines such as $$dyncall), or it may | |
a04257e6 | 1054 | be history value, or it may be a convenience variable. */ |
50641945 | 1055 | |
9ef07c8c | 1056 | if (*copy == '$' && function_symbol == NULL) |
14e91ac5 | 1057 | return decode_dollar (copy, funfirstline, default_symtab, |
88d262ca | 1058 | canonical, file_symtab); |
50641945 | 1059 | |
0f5238ed TT |
1060 | /* Try the token as a label, but only if no file was specified, |
1061 | because we can only really find labels in the current scope. */ | |
1062 | ||
1063 | if (!file_symtab) | |
1064 | { | |
1065 | struct symtabs_and_lines label_result; | |
9ef07c8c | 1066 | if (decode_label (function_symbol, copy, canonical, &label_result)) |
0f5238ed TT |
1067 | return label_result; |
1068 | } | |
1069 | ||
9ef07c8c | 1070 | if (function_symbol) |
58438ac1 | 1071 | throw_exception (file_exception); |
9ef07c8c | 1072 | |
50641945 FN |
1073 | /* Look up that token as a variable. |
1074 | If file specified, use that file's per-file block to start with. */ | |
1075 | ||
58438ac1 | 1076 | return decode_variable (copy, funfirstline, canonical, file_symtab); |
413dad4d | 1077 | } |
50641945 | 1078 | |
44fe14ab DC |
1079 | \f |
1080 | ||
614b3b14 DC |
1081 | /* Now, more helper functions for decode_line_1. Some conventions |
1082 | that these functions follow: | |
1083 | ||
1084 | Decode_line_1 typically passes along some of its arguments or local | |
1085 | variables to the subfunctions. It passes the variables by | |
1086 | reference if they are modified by the subfunction, and by value | |
1087 | otherwise. | |
1088 | ||
1089 | Some of the functions have side effects that don't arise from | |
1090 | variables that are passed by reference. In particular, if a | |
1091 | function is passed ARGPTR as an argument, it modifies what ARGPTR | |
1092 | points to; typically, it advances *ARGPTR past whatever substring | |
1093 | it has just looked at. (If it doesn't modify *ARGPTR, then the | |
94af9270 KS |
1094 | function gets passed *ARGPTR instead, which is then called ARG.) |
1095 | Also, functions that return a struct symtabs_and_lines may modify | |
1096 | CANONICAL, as in the description of decode_line_1. | |
614b3b14 DC |
1097 | |
1098 | If a function returns a struct symtabs_and_lines, then that struct | |
1099 | will immediately make its way up the call chain to be returned by | |
1100 | decode_line_1. In particular, all of the functions decode_XXX | |
1101 | calculate the appropriate struct symtabs_and_lines, under the | |
1102 | assumption that their argument is of the form XXX. */ | |
44fe14ab DC |
1103 | |
1104 | /* First, some functions to initialize stuff at the beggining of the | |
1105 | function. */ | |
1106 | ||
1107 | static void | |
1108 | initialize_defaults (struct symtab **default_symtab, int *default_line) | |
1109 | { | |
1110 | if (*default_symtab == 0) | |
1111 | { | |
1112 | /* Use whatever we have for the default source line. We don't use | |
1113 | get_current_or_default_symtab_and_line as it can recurse and call | |
1777feb0 | 1114 | us back! */ |
44fe14ab DC |
1115 | struct symtab_and_line cursal = |
1116 | get_current_source_symtab_and_line (); | |
1117 | ||
1118 | *default_symtab = cursal.symtab; | |
1119 | *default_line = cursal.line; | |
1120 | } | |
1121 | } | |
1122 | ||
1123 | \f | |
1124 | ||
1125 | /* Decode arg of the form *PC. */ | |
1126 | ||
1127 | static struct symtabs_and_lines | |
1128 | decode_indirect (char **argptr) | |
1129 | { | |
1130 | struct symtabs_and_lines values; | |
1131 | CORE_ADDR pc; | |
1132 | ||
1133 | (*argptr)++; | |
63ffa6ee | 1134 | pc = value_as_address (parse_to_comma_and_eval (argptr)); |
44fe14ab DC |
1135 | |
1136 | values.sals = (struct symtab_and_line *) | |
1137 | xmalloc (sizeof (struct symtab_and_line)); | |
1138 | ||
1139 | values.nelts = 1; | |
1140 | values.sals[0] = find_pc_line (pc, 0); | |
1141 | values.sals[0].pc = pc; | |
1142 | values.sals[0].section = find_pc_overlay (pc); | |
ed0616c6 | 1143 | values.sals[0].explicit_pc = 1; |
44fe14ab DC |
1144 | |
1145 | return values; | |
1146 | } | |
413dad4d DC |
1147 | |
1148 | \f | |
1149 | ||
0960f083 DC |
1150 | /* Locate the first half of the linespec, ending in a colon, period, |
1151 | or whitespace. (More or less.) Also, check to see if *ARGPTR is | |
1152 | enclosed in double quotes; if so, set is_quote_enclosed, advance | |
17763fd9 EZ |
1153 | ARGPTR past that and zero out the trailing double quote. |
1154 | If ARGPTR is just a simple name like "main", p will point to "" | |
1155 | at the end. */ | |
0960f083 DC |
1156 | |
1157 | static char * | |
1158 | locate_first_half (char **argptr, int *is_quote_enclosed) | |
1159 | { | |
1160 | char *ii; | |
1161 | char *p, *p1; | |
1162 | int has_comma; | |
1163 | ||
1164 | /* Maybe we were called with a line range FILENAME:LINENUM,FILENAME:LINENUM | |
1165 | and we must isolate the first half. Outer layers will call again later | |
1166 | for the second half. | |
1167 | ||
1168 | Don't count commas that appear in argument lists of overloaded | |
1169 | functions, or in quoted strings. It's stupid to go to this much | |
1170 | trouble when the rest of the function is such an obvious roach hotel. */ | |
1171 | ii = find_toplevel_char (*argptr, ','); | |
1172 | has_comma = (ii != 0); | |
1173 | ||
a04257e6 | 1174 | /* Temporarily zap out second half to not confuse the code below. |
1777feb0 | 1175 | This is undone below. Do not change ii!! */ |
0960f083 DC |
1176 | if (has_comma) |
1177 | { | |
1178 | *ii = '\0'; | |
1179 | } | |
1180 | ||
a04257e6 DC |
1181 | /* Maybe arg is FILE : LINENUM or FILE : FUNCTION. May also be |
1182 | CLASS::MEMBER, or NAMESPACE::NAME. Look for ':', but ignore | |
1183 | inside of <>. */ | |
0960f083 DC |
1184 | |
1185 | p = *argptr; | |
1186 | if (p[0] == '"') | |
1187 | { | |
1188 | *is_quote_enclosed = 1; | |
1189 | (*argptr)++; | |
1190 | p++; | |
1191 | } | |
1192 | else | |
0e0b460e KS |
1193 | { |
1194 | *is_quote_enclosed = 0; | |
1195 | if (strchr (get_gdb_completer_quote_characters (), *p)) | |
1196 | { | |
1197 | ++(*argptr); | |
1198 | ++p; | |
1199 | } | |
1200 | } | |
0960f083 DC |
1201 | for (; *p; p++) |
1202 | { | |
1203 | if (p[0] == '<') | |
1204 | { | |
1205 | char *temp_end = find_template_name_end (p); | |
e0881a8e | 1206 | |
0960f083 | 1207 | if (!temp_end) |
8a3fe4f8 | 1208 | error (_("malformed template specification in command")); |
0960f083 DC |
1209 | p = temp_end; |
1210 | } | |
c00f8484 KS |
1211 | |
1212 | if (p[0] == '(') | |
1213 | p = find_method_overload_end (p); | |
1214 | ||
d2630e69 | 1215 | /* Check for a colon and a plus or minus and a [ (which |
1777feb0 | 1216 | indicates an Objective-C method). */ |
889f28e2 | 1217 | if (is_objc_method_format (p)) |
d2630e69 AF |
1218 | { |
1219 | break; | |
1220 | } | |
a04257e6 | 1221 | /* Check for the end of the first half of the linespec. End of |
e8eb7bc5 KS |
1222 | line, a tab, a colon or a space. But if enclosed in double |
1223 | quotes we do not break on enclosed spaces. */ | |
0960f083 DC |
1224 | if (!*p |
1225 | || p[0] == '\t' | |
e8eb7bc5 | 1226 | || (p[0] == ':') |
0960f083 DC |
1227 | || ((p[0] == ' ') && !*is_quote_enclosed)) |
1228 | break; | |
a04257e6 | 1229 | if (p[0] == '.' && strchr (p, ':') == NULL) |
0960f083 | 1230 | { |
a04257e6 | 1231 | /* Java qualified method. Find the *last* '.', since the |
94af9270 KS |
1232 | others are package qualifiers. Stop at any open parenthesis |
1233 | which might provide overload information. */ | |
1234 | for (p1 = p; *p1 && *p1 != '('; p1++) | |
0960f083 DC |
1235 | { |
1236 | if (*p1 == '.') | |
1237 | p = p1; | |
1238 | } | |
1239 | break; | |
1240 | } | |
1241 | } | |
1242 | while (p[0] == ' ' || p[0] == '\t') | |
1243 | p++; | |
1244 | ||
a04257e6 | 1245 | /* If the closing double quote was left at the end, remove it. */ |
0960f083 DC |
1246 | if (*is_quote_enclosed) |
1247 | { | |
1248 | char *closing_quote = strchr (p - 1, '"'); | |
e0881a8e | 1249 | |
0960f083 DC |
1250 | if (closing_quote && closing_quote[1] == '\0') |
1251 | *closing_quote = '\0'; | |
1252 | } | |
1253 | ||
a04257e6 DC |
1254 | /* Now that we've safely parsed the first half, put back ',' so |
1255 | outer layers can see it. */ | |
0960f083 DC |
1256 | if (has_comma) |
1257 | *ii = ','; | |
1258 | ||
1259 | return p; | |
1260 | } | |
1261 | ||
1262 | \f | |
1263 | ||
d2630e69 AF |
1264 | /* Here's where we recognise an Objective-C Selector. An Objective C |
1265 | selector may be implemented by more than one class, therefore it | |
1266 | may represent more than one method/function. This gives us a | |
1267 | situation somewhat analogous to C++ overloading. If there's more | |
1268 | than one method that could represent the selector, then use some of | |
1269 | the existing C++ code to let the user choose one. */ | |
1270 | ||
1271 | struct symtabs_and_lines | |
1272 | decode_objc (char **argptr, int funfirstline, struct symtab *file_symtab, | |
7efd8fc2 | 1273 | struct linespec_result *canonical, char *saved_arg) |
d2630e69 AF |
1274 | { |
1275 | struct symtabs_and_lines values; | |
1276 | struct symbol **sym_arr = NULL; | |
1277 | struct symbol *sym = NULL; | |
d2630e69 | 1278 | struct block *block = NULL; |
15550d6b MK |
1279 | unsigned i1 = 0; |
1280 | unsigned i2 = 0; | |
d2630e69 AF |
1281 | |
1282 | values.sals = NULL; | |
1283 | values.nelts = 0; | |
1284 | ||
e8eb7bc5 KS |
1285 | find_imps (file_symtab, get_search_block (file_symtab), *argptr, |
1286 | NULL, &i1, &i2); | |
d2630e69 AF |
1287 | |
1288 | if (i1 > 0) | |
1289 | { | |
1777feb0 MS |
1290 | sym_arr = (struct symbol **) |
1291 | alloca ((i1 + 1) * sizeof (struct symbol *)); | |
46be51c4 | 1292 | sym_arr[i1] = NULL; |
d2630e69 | 1293 | |
5715d26e | 1294 | *argptr = find_imps (file_symtab, block, *argptr, sym_arr, &i1, &i2); |
d2630e69 AF |
1295 | } |
1296 | ||
1297 | /* i1 now represents the TOTAL number of matches found. | |
1298 | i2 represents how many HIGH-LEVEL (struct symbol) matches, | |
1299 | which will come first in the sym_arr array. Any low-level | |
1300 | (minimal_symbol) matches will follow those. */ | |
1301 | ||
1302 | if (i1 == 1) | |
1303 | { | |
1304 | if (i2 > 0) | |
1305 | { | |
1306 | /* Already a struct symbol. */ | |
1307 | sym = sym_arr[0]; | |
1308 | } | |
1309 | else | |
1310 | { | |
1311 | sym = find_pc_function (SYMBOL_VALUE_ADDRESS (sym_arr[0])); | |
3e43a32a MS |
1312 | if ((sym != NULL) && strcmp (SYMBOL_LINKAGE_NAME (sym_arr[0]), |
1313 | SYMBOL_LINKAGE_NAME (sym)) != 0) | |
d2630e69 | 1314 | { |
3e43a32a MS |
1315 | warning (_("debugging symbol \"%s\" does " |
1316 | "not match selector; ignoring"), | |
1317 | SYMBOL_LINKAGE_NAME (sym)); | |
d2630e69 AF |
1318 | sym = NULL; |
1319 | } | |
1320 | } | |
1321 | ||
3e43a32a MS |
1322 | values.sals = (struct symtab_and_line *) |
1323 | xmalloc (sizeof (struct symtab_and_line)); | |
d2630e69 AF |
1324 | values.nelts = 1; |
1325 | ||
1326 | if (sym && SYMBOL_CLASS (sym) == LOC_BLOCK) | |
1327 | { | |
1328 | /* Canonicalize this, so it remains resolved for dylib loads. */ | |
1329 | values.sals[0] = find_function_start_sal (sym, funfirstline); | |
3e43a32a MS |
1330 | build_canonical_line_spec (values.sals, |
1331 | SYMBOL_NATURAL_NAME (sym), canonical); | |
d2630e69 AF |
1332 | } |
1333 | else | |
1334 | { | |
69368a60 UW |
1335 | /* The only match was a non-debuggable symbol, which might point |
1336 | to a function descriptor; resolve it to the actual code address | |
1337 | instead. */ | |
1338 | struct minimal_symbol *msymbol = (struct minimal_symbol *)sym_arr[0]; | |
1339 | struct objfile *objfile = msymbol_objfile (msymbol); | |
1340 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
1341 | CORE_ADDR pc = SYMBOL_VALUE_ADDRESS (msymbol); | |
1342 | ||
1343 | pc = gdbarch_convert_from_func_ptr_addr (gdbarch, pc, | |
1344 | ¤t_target); | |
1345 | ||
1346 | init_sal (&values.sals[0]); | |
1347 | values.sals[0].pc = pc; | |
d2630e69 AF |
1348 | } |
1349 | return values; | |
1350 | } | |
1351 | ||
1352 | if (i1 > 1) | |
1353 | { | |
1777feb0 | 1354 | /* More than one match. The user must choose one or more. */ |
d2630e69 AF |
1355 | return decode_line_2 (sym_arr, i2, funfirstline, canonical); |
1356 | } | |
1357 | ||
1358 | return values; | |
1359 | } | |
1360 | ||
614b3b14 | 1361 | /* This handles C++ and Java compound data structures. P should point |
17763fd9 EZ |
1362 | at the first component separator, i.e. double-colon or period. As |
1363 | an example, on entrance to this function we could have ARGPTR | |
1364 | pointing to "AAA::inA::fun" and P pointing to "::inA::fun". */ | |
614b3b14 DC |
1365 | |
1366 | static struct symtabs_and_lines | |
7efd8fc2 | 1367 | decode_compound (char **argptr, int funfirstline, |
e8eb7bc5 | 1368 | struct linespec_result *canonical, struct symtab *file_symtab, |
58438ac1 | 1369 | char *the_real_saved_arg, char *p) |
614b3b14 DC |
1370 | { |
1371 | struct symtabs_and_lines values; | |
93d91629 | 1372 | char *p2; |
614b3b14 DC |
1373 | char *saved_arg2 = *argptr; |
1374 | char *temp_end; | |
1375 | struct symbol *sym; | |
614b3b14 DC |
1376 | char *copy; |
1377 | struct symbol *sym_class; | |
614b3b14 | 1378 | struct type *t; |
c00f8484 KS |
1379 | char *saved_arg; |
1380 | ||
1381 | /* If the user specified any completer quote characters in the input, | |
1382 | strip them. They are superfluous. */ | |
1383 | saved_arg = alloca (strlen (the_real_saved_arg) + 1); | |
1384 | { | |
1385 | char *dst = saved_arg; | |
1386 | char *src = the_real_saved_arg; | |
1387 | char *quotes = get_gdb_completer_quote_characters (); | |
1388 | while (*src != '\0') | |
1389 | { | |
1390 | if (strchr (quotes, *src) == NULL) | |
1391 | *dst++ = *src; | |
1392 | ++src; | |
1393 | } | |
1394 | *dst = '\0'; | |
1395 | } | |
614b3b14 | 1396 | |
17763fd9 EZ |
1397 | /* First check for "global" namespace specification, of the form |
1398 | "::foo". If found, skip over the colons and jump to normal | |
1399 | symbol processing. I.e. the whole line specification starts with | |
1777feb0 | 1400 | "::" (note the condition that *argptr == p). */ |
614b3b14 DC |
1401 | if (p[0] == ':' |
1402 | && ((*argptr == p) || (p[-1] == ' ') || (p[-1] == '\t'))) | |
1403 | saved_arg2 += 2; | |
1404 | ||
87b3ede8 DC |
1405 | /* Given our example "AAA::inA::fun", we have two cases to consider: |
1406 | ||
1407 | 1) AAA::inA is the name of a class. In that case, presumably it | |
1408 | has a method called "fun"; we then look up that method using | |
1409 | find_method. | |
1410 | ||
1411 | 2) AAA::inA isn't the name of a class. In that case, either the | |
c00f8484 KS |
1412 | user made a typo, AAA::inA is the name of a namespace, or it is |
1413 | the name of a minimal symbol. | |
1414 | We just look up AAA::inA::fun with lookup_symbol. If that fails, | |
1415 | try lookup_minimal_symbol. | |
87b3ede8 DC |
1416 | |
1417 | Thus, our first task is to find everything before the last set of | |
1418 | double-colons and figure out if it's the name of a class. So we | |
1419 | first loop through all of the double-colons. */ | |
614b3b14 | 1420 | |
a04257e6 | 1421 | p2 = p; /* Save for restart. */ |
17763fd9 | 1422 | |
1777feb0 | 1423 | /* This is very messy. Following the example above we have now the |
17763fd9 EZ |
1424 | following pointers: |
1425 | p -> "::inA::fun" | |
1426 | argptr -> "AAA::inA::fun | |
1427 | saved_arg -> "AAA::inA::fun | |
1428 | saved_arg2 -> "AAA::inA::fun | |
1777feb0 | 1429 | p2 -> "::inA::fun". */ |
17763fd9 EZ |
1430 | |
1431 | /* In the loop below, with these strings, we'll make 2 passes, each | |
1777feb0 | 1432 | is marked in comments. */ |
17763fd9 | 1433 | |
614b3b14 DC |
1434 | while (1) |
1435 | { | |
c00f8484 KS |
1436 | static char *break_characters = " \t("; |
1437 | ||
a04257e6 | 1438 | /* Move pointer up to next possible class/namespace token. */ |
17763fd9 | 1439 | |
a04257e6 | 1440 | p = p2 + 1; /* Restart with old value +1. */ |
17763fd9 EZ |
1441 | |
1442 | /* PASS1: at this point p2->"::inA::fun", so p->":inA::fun", | |
1443 | i.e. if there is a double-colon, p will now point to the | |
1777feb0 | 1444 | second colon. */ |
87b3ede8 | 1445 | /* PASS2: p2->"::fun", p->":fun" */ |
17763fd9 | 1446 | |
a04257e6 | 1447 | /* Move pointer ahead to next double-colon. */ |
c00f8484 KS |
1448 | while (*p |
1449 | && strchr (break_characters, *p) == NULL | |
1450 | && strchr (get_gdb_completer_quote_characters (), *p) == NULL) | |
614b3b14 | 1451 | { |
12907978 KS |
1452 | if (current_language->la_language == language_cplus) |
1453 | p += cp_validate_operator (p); | |
1454 | ||
614b3b14 DC |
1455 | if (p[0] == '<') |
1456 | { | |
1457 | temp_end = find_template_name_end (p); | |
1458 | if (!temp_end) | |
8a3fe4f8 | 1459 | error (_("malformed template specification in command")); |
614b3b14 DC |
1460 | p = temp_end; |
1461 | } | |
17763fd9 EZ |
1462 | /* Note that, since, at the start of this loop, p would be |
1463 | pointing to the second colon in a double-colon, we only | |
1464 | satisfy the condition below if there is another | |
1777feb0 MS |
1465 | double-colon to the right (after). I.e. there is another |
1466 | component that can be a class or a namespace. I.e, if at | |
17763fd9 EZ |
1467 | the beginning of this loop (PASS1), we had |
1468 | p->":inA::fun", we'll trigger this when p has been | |
1469 | advanced to point to "::fun". */ | |
1777feb0 | 1470 | /* PASS2: we will not trigger this. */ |
614b3b14 | 1471 | else if ((p[0] == ':') && (p[1] == ':')) |
a04257e6 | 1472 | break; /* Found double-colon. */ |
614b3b14 | 1473 | else |
c00f8484 KS |
1474 | { |
1475 | /* PASS2: We'll keep getting here, until P points to one of the | |
1476 | break characters, at which point we exit this loop. */ | |
2b1dbab0 KS |
1477 | if (*p) |
1478 | { | |
1479 | if (p[1] == '(' | |
1480 | && strncmp (&p[1], CP_ANONYMOUS_NAMESPACE_STR, | |
1481 | CP_ANONYMOUS_NAMESPACE_LEN) == 0) | |
1482 | p += CP_ANONYMOUS_NAMESPACE_LEN; | |
1483 | else if (strchr (break_characters, *p) == NULL) | |
1484 | ++p; | |
1485 | } | |
c00f8484 | 1486 | } |
614b3b14 DC |
1487 | } |
1488 | ||
1489 | if (*p != ':') | |
17763fd9 EZ |
1490 | break; /* Out of the while (1). This would happen |
1491 | for instance if we have looked up | |
1492 | unsuccessfully all the components of the | |
1777feb0 | 1493 | string, and p->""(PASS2). */ |
17763fd9 | 1494 | |
c00f8484 | 1495 | /* We get here if p points to one of the break characters or "" (i.e., |
1777feb0 | 1496 | string ended). */ |
17763fd9 EZ |
1497 | /* Save restart for next time around. */ |
1498 | p2 = p; | |
1499 | /* Restore argptr as it was on entry to this function. */ | |
1500 | *argptr = saved_arg2; | |
87b3ede8 DC |
1501 | /* PASS1: at this point p->"::fun" argptr->"AAA::inA::fun", |
1502 | p2->"::fun". */ | |
17763fd9 EZ |
1503 | |
1504 | /* All ready for next pass through the loop. */ | |
614b3b14 DC |
1505 | } /* while (1) */ |
1506 | ||
87b3ede8 | 1507 | |
1777feb0 | 1508 | /* Start of lookup in the symbol tables. */ |
87b3ede8 DC |
1509 | |
1510 | /* Lookup in the symbol table the substring between argptr and | |
1777feb0 | 1511 | p. Note, this call changes the value of argptr. */ |
87b3ede8 DC |
1512 | /* Before the call, argptr->"AAA::inA::fun", |
1513 | p->"", p2->"::fun". After the call: argptr->"fun", p, p2 | |
1514 | unchanged. */ | |
e8eb7bc5 | 1515 | sym_class = lookup_prefix_sym (argptr, p2, file_symtab); |
87b3ede8 DC |
1516 | |
1517 | /* If sym_class has been found, and if "AAA::inA" is a class, then | |
1518 | we're in case 1 above. So we look up "fun" as a method of that | |
1519 | class. */ | |
1520 | if (sym_class && | |
1521 | (t = check_typedef (SYMBOL_TYPE (sym_class)), | |
1522 | (TYPE_CODE (t) == TYPE_CODE_STRUCT | |
1523 | || TYPE_CODE (t) == TYPE_CODE_UNION))) | |
1524 | { | |
1525 | /* Arg token is not digits => try it as a function name. | |
1526 | Find the next token (everything up to end or next | |
1527 | blank). */ | |
1528 | if (**argptr | |
1529 | && strchr (get_gdb_completer_quote_characters (), | |
1530 | **argptr) != NULL) | |
1531 | { | |
1532 | p = skip_quoted (*argptr); | |
1533 | *argptr = *argptr + 1; | |
1534 | } | |
1535 | else | |
1536 | { | |
1537 | /* At this point argptr->"fun". */ | |
94af9270 | 1538 | char *a; |
e0881a8e | 1539 | |
87b3ede8 | 1540 | p = *argptr; |
94af9270 KS |
1541 | while (*p && *p != ' ' && *p != '\t' && *p != ',' && *p != ':' |
1542 | && *p != '(') | |
87b3ede8 DC |
1543 | p++; |
1544 | /* At this point p->"". String ended. */ | |
12907978 KS |
1545 | /* Nope, C++ operators could have spaces in them |
1546 | ("foo::operator <" or "foo::operator delete []"). | |
1547 | I apologize, this is a bit hacky... */ | |
1548 | if (current_language->la_language == language_cplus | |
1549 | && *p == ' ' && p - 8 - *argptr + 1 > 0) | |
1550 | { | |
1551 | /* The above loop has already swallowed "operator". */ | |
1552 | p += cp_validate_operator (p - 8) - 8; | |
1553 | } | |
94af9270 | 1554 | |
c00f8484 | 1555 | /* Keep any important naming information. */ |
3d50dd94 | 1556 | p = keep_name_info (p, 1); |
87b3ede8 DC |
1557 | } |
1558 | ||
1559 | /* Allocate our own copy of the substring between argptr and | |
1777feb0 | 1560 | p. */ |
87b3ede8 DC |
1561 | copy = (char *) alloca (p - *argptr + 1); |
1562 | memcpy (copy, *argptr, p - *argptr); | |
1563 | copy[p - *argptr] = '\0'; | |
1564 | if (p != *argptr | |
1565 | && copy[p - *argptr - 1] | |
1566 | && strchr (get_gdb_completer_quote_characters (), | |
1567 | copy[p - *argptr - 1]) != NULL) | |
1568 | copy[p - *argptr - 1] = '\0'; | |
1569 | ||
1777feb0 | 1570 | /* At this point copy->"fun", p->"". */ |
87b3ede8 DC |
1571 | |
1572 | /* No line number may be specified. */ | |
1573 | while (*p == ' ' || *p == '\t') | |
1574 | p++; | |
1575 | *argptr = p; | |
1576 | /* At this point arptr->"". */ | |
1577 | ||
1777feb0 | 1578 | /* Look for copy as a method of sym_class. */ |
87b3ede8 DC |
1579 | /* At this point copy->"fun", sym_class is "AAA:inA", |
1580 | saved_arg->"AAA::inA::fun". This concludes the scanning of | |
1581 | the string for possible components matches. If we find it | |
1777feb0 | 1582 | here, we return. If not, and we are at the and of the string, |
87b3ede8 DC |
1583 | we'll lookup the whole string in the symbol tables. */ |
1584 | ||
3d50dd94 JK |
1585 | return find_method (funfirstline, canonical, saved_arg, copy, t, |
1586 | sym_class, file_symtab); | |
1777feb0 | 1587 | } /* End if symbol found. */ |
87b3ede8 DC |
1588 | |
1589 | ||
1590 | /* We couldn't find a class, so we're in case 2 above. We check the | |
1591 | entire name as a symbol instead. */ | |
1592 | ||
3d50dd94 | 1593 | p = keep_name_info (p, 1); |
c00f8484 | 1594 | |
614b3b14 DC |
1595 | copy = (char *) alloca (p - saved_arg2 + 1); |
1596 | memcpy (copy, saved_arg2, p - saved_arg2); | |
a04257e6 DC |
1597 | /* Note: if is_quoted should be true, we snuff out quote here |
1598 | anyway. */ | |
614b3b14 | 1599 | copy[p - saved_arg2] = '\000'; |
a04257e6 | 1600 | /* Set argptr to skip over the name. */ |
614b3b14 | 1601 | *argptr = (*p == '\'') ? p + 1 : p; |
17763fd9 | 1602 | |
1777feb0 | 1603 | /* Look up entire name. */ |
c00f8484 | 1604 | sym = lookup_symbol (copy, get_selected_block (0), VAR_DOMAIN, 0); |
614b3b14 | 1605 | if (sym) |
9ef07c8c | 1606 | return symbol_found (funfirstline, canonical, copy, sym, NULL, NULL); |
c00f8484 KS |
1607 | else |
1608 | { | |
1609 | struct minimal_symbol *msym; | |
1610 | ||
1611 | /* Couldn't find any interpretation as classes/namespaces. As a last | |
1612 | resort, try the minimal symbol tables. */ | |
1613 | msym = lookup_minimal_symbol (copy, NULL, NULL); | |
1614 | if (msym != NULL) | |
1615 | return minsym_found (funfirstline, msym); | |
1616 | } | |
614b3b14 | 1617 | |
c00f8484 | 1618 | /* Couldn't find a minimal symbol, either, so give up. */ |
c00f8484 | 1619 | cplusplus_error (the_real_saved_arg, |
3e43a32a MS |
1620 | "Can't find member of namespace, " |
1621 | "class, struct, or union named \"%s\"\n", | |
614b3b14 DC |
1622 | copy); |
1623 | } | |
1624 | ||
93d91629 DC |
1625 | /* Next come some helper functions for decode_compound. */ |
1626 | ||
1627 | /* Return the symbol corresponding to the substring of *ARGPTR ending | |
1628 | at P, allowing whitespace. Also, advance *ARGPTR past the symbol | |
1629 | name in question, the compound object separator ("::" or "."), and | |
17763fd9 EZ |
1630 | whitespace. Note that *ARGPTR is changed whether or not the |
1631 | lookup_symbol call finds anything (i.e we return NULL). As an | |
1632 | example, say ARGPTR is "AAA::inA::fun" and P is "::inA::fun". */ | |
93d91629 DC |
1633 | |
1634 | static struct symbol * | |
e8eb7bc5 | 1635 | lookup_prefix_sym (char **argptr, char *p, struct symtab *file_symtab) |
93d91629 DC |
1636 | { |
1637 | char *p1; | |
1638 | char *copy; | |
1e5a1abc | 1639 | struct symbol *sym; |
93d91629 DC |
1640 | |
1641 | /* Extract the class name. */ | |
1642 | p1 = p; | |
1643 | while (p != *argptr && p[-1] == ' ') | |
1644 | --p; | |
1645 | copy = (char *) alloca (p - *argptr + 1); | |
1646 | memcpy (copy, *argptr, p - *argptr); | |
1647 | copy[p - *argptr] = 0; | |
1648 | ||
17763fd9 | 1649 | /* Discard the class name from the argptr. */ |
93d91629 DC |
1650 | p = p1 + (p1[0] == ':' ? 2 : 1); |
1651 | while (*p == ' ' || *p == '\t') | |
1652 | p++; | |
1653 | *argptr = p; | |
1654 | ||
17763fd9 | 1655 | /* At this point p1->"::inA::fun", p->"inA::fun" copy->"AAA", |
1777feb0 | 1656 | argptr->"inA::fun". */ |
17763fd9 | 1657 | |
e8eb7bc5 | 1658 | sym = lookup_symbol (copy, get_search_block (file_symtab), STRUCT_DOMAIN, 0); |
1e5a1abc KS |
1659 | if (sym == NULL) |
1660 | { | |
1661 | /* Typedefs are in VAR_DOMAIN so the above symbol lookup will | |
1662 | fail when the user attempts to lookup a method of a class | |
1663 | via a typedef'd name (NOT via the class's name, which is already | |
1664 | handled in symbol_matches_domain). So try the lookup again | |
1665 | using VAR_DOMAIN (where typedefs live) and double-check that we | |
1666 | found a struct/class type. */ | |
1667 | struct symbol *s = lookup_symbol (copy, 0, VAR_DOMAIN, 0); | |
e0881a8e | 1668 | |
1e5a1abc KS |
1669 | if (s != NULL) |
1670 | { | |
1671 | struct type *t = SYMBOL_TYPE (s); | |
e0881a8e | 1672 | |
1e5a1abc KS |
1673 | CHECK_TYPEDEF (t); |
1674 | if (TYPE_CODE (t) == TYPE_CODE_STRUCT) | |
1675 | return s; | |
1676 | } | |
1677 | } | |
1678 | ||
1679 | return sym; | |
93d91629 DC |
1680 | } |
1681 | ||
4224873a DC |
1682 | /* This finds the method COPY in the class whose type is T and whose |
1683 | symbol is SYM_CLASS. */ | |
1684 | ||
1685 | static struct symtabs_and_lines | |
7efd8fc2 TT |
1686 | find_method (int funfirstline, struct linespec_result *canonical, |
1687 | char *saved_arg, | |
e8eb7bc5 KS |
1688 | char *copy, struct type *t, struct symbol *sym_class, |
1689 | struct symtab *file_symtab) | |
4224873a DC |
1690 | { |
1691 | struct symtabs_and_lines values; | |
46be51c4 | 1692 | struct symbol *sym = NULL; |
78a11fb4 | 1693 | int i1; /* Counter for the symbol array. */ |
4224873a DC |
1694 | struct symbol **sym_arr = alloca (total_number_of_methods (t) |
1695 | * sizeof (struct symbol *)); | |
1696 | ||
78a11fb4 DC |
1697 | /* Find all methods with a matching name, and put them in |
1698 | sym_arr. */ | |
4224873a | 1699 | |
e8eb7bc5 KS |
1700 | i1 = find_methods (t, copy, SYMBOL_LANGUAGE (sym_class), sym_arr, |
1701 | file_symtab); | |
4224873a | 1702 | |
418c7cf7 JK |
1703 | /* If we were given a specific overload instance in COPY, defer the field |
1704 | acceptance till the strcmp_iw verification below, even if we found just | |
1705 | a single field with that name. */ | |
1706 | if (i1 == 1 && strchr (copy, '(') == NULL) | |
4224873a DC |
1707 | { |
1708 | /* There is exactly one field with that name. */ | |
1709 | sym = sym_arr[0]; | |
1710 | ||
1711 | if (sym && SYMBOL_CLASS (sym) == LOC_BLOCK) | |
1712 | { | |
1713 | values.sals = (struct symtab_and_line *) | |
1714 | xmalloc (sizeof (struct symtab_and_line)); | |
1715 | values.nelts = 1; | |
1716 | values.sals[0] = find_function_start_sal (sym, | |
1717 | funfirstline); | |
1718 | } | |
1719 | else | |
1720 | { | |
15550d6b | 1721 | values.sals = NULL; |
4224873a DC |
1722 | values.nelts = 0; |
1723 | } | |
1724 | return values; | |
1725 | } | |
1726 | if (i1 > 0) | |
1727 | { | |
94af9270 KS |
1728 | /* If we were given a specific overload instance, use that |
1729 | (or error if no matches were found). Otherwise ask the user | |
1730 | which one to use. */ | |
c00f8484 | 1731 | if (strchr (copy, '(')) |
94af9270 KS |
1732 | { |
1733 | int i; | |
c00f8484 KS |
1734 | char *name; |
1735 | char *canon; | |
d03a3acf | 1736 | struct cleanup *cleanup; |
e0881a8e | 1737 | |
c00f8484 KS |
1738 | /* Construct the proper search name based on SYM_CLASS and COPY. |
1739 | SAVED_ARG may contain a valid name, but that name might not be | |
1740 | what is actually stored in the symbol table. For example, | |
1741 | if SAVED_ARG (and SYM_CLASS) were found via an import | |
1742 | ("using namespace" in C++), then the physname of | |
1743 | SYM_CLASS ("A::myclass") may not be the same as SAVED_ARG | |
1744 | ("myclass"). */ | |
1745 | name = xmalloc (strlen (SYMBOL_NATURAL_NAME (sym_class)) | |
1746 | + 2 /* "::" */ + strlen (copy) + 1); | |
1747 | strcpy (name, SYMBOL_NATURAL_NAME (sym_class)); | |
1748 | strcat (name, "::"); | |
1749 | strcat (name, copy); | |
1750 | canon = cp_canonicalize_string (name); | |
d03a3acf | 1751 | if (canon != NULL) |
94af9270 | 1752 | { |
c00f8484 | 1753 | xfree (name); |
d03a3acf | 1754 | name = canon; |
d03a3acf | 1755 | } |
c00f8484 | 1756 | cleanup = make_cleanup (xfree, name); |
94af9270 | 1757 | |
d03a3acf KS |
1758 | for (i = 0; i < i1; ++i) |
1759 | { | |
94af9270 KS |
1760 | if (strcmp_iw (name, SYMBOL_LINKAGE_NAME (sym_arr[i])) == 0) |
1761 | { | |
1762 | values.sals = (struct symtab_and_line *) | |
1763 | xmalloc (sizeof (struct symtab_and_line)); | |
1764 | values.nelts = 1; | |
1765 | values.sals[0] = find_function_start_sal (sym_arr[i], | |
1766 | funfirstline); | |
d03a3acf | 1767 | do_cleanups (cleanup); |
94af9270 KS |
1768 | return values; |
1769 | } | |
94af9270 KS |
1770 | } |
1771 | ||
dcf9f4ab JK |
1772 | cplusplus_error (saved_arg, _("the class `%s' does not have " |
1773 | "any method instance named %s"), | |
1774 | SYMBOL_PRINT_NAME (sym_class), copy); | |
94af9270 KS |
1775 | } |
1776 | ||
4224873a DC |
1777 | return decode_line_2 (sym_arr, i1, funfirstline, canonical); |
1778 | } | |
1779 | else | |
1780 | { | |
12907978 | 1781 | if (copy[0] == '~') |
4224873a DC |
1782 | cplusplus_error (saved_arg, |
1783 | "the class `%s' does not have destructor defined\n", | |
1784 | SYMBOL_PRINT_NAME (sym_class)); | |
1785 | else | |
1786 | cplusplus_error (saved_arg, | |
1787 | "the class %s does not have any method named %s\n", | |
12907978 | 1788 | SYMBOL_PRINT_NAME (sym_class), copy); |
4224873a DC |
1789 | } |
1790 | } | |
1791 | ||
f3c39e76 DC |
1792 | \f |
1793 | ||
1794 | /* Return the symtab associated to the filename given by the substring | |
58438ac1 | 1795 | of *ARGPTR ending at P, and advance ARGPTR past that filename. */ |
f3c39e76 DC |
1796 | |
1797 | static struct symtab * | |
58438ac1 | 1798 | symtab_from_filename (char **argptr, char *p, int is_quote_enclosed) |
f3c39e76 DC |
1799 | { |
1800 | char *p1; | |
1801 | char *copy; | |
94cd26f8 | 1802 | struct symtab *file_symtab; |
f3c39e76 DC |
1803 | |
1804 | p1 = p; | |
1805 | while (p != *argptr && p[-1] == ' ') | |
1806 | --p; | |
1807 | if ((*p == '"') && is_quote_enclosed) | |
1808 | --p; | |
1809 | copy = (char *) alloca (p - *argptr + 1); | |
1810 | memcpy (copy, *argptr, p - *argptr); | |
a04257e6 | 1811 | /* It may have the ending quote right after the file name. */ |
0e0b460e KS |
1812 | if ((is_quote_enclosed && copy[p - *argptr - 1] == '"') |
1813 | || copy[p - *argptr - 1] == '\'') | |
f3c39e76 DC |
1814 | copy[p - *argptr - 1] = 0; |
1815 | else | |
1816 | copy[p - *argptr] = 0; | |
1817 | ||
1818 | /* Find that file's data. */ | |
94cd26f8 DC |
1819 | file_symtab = lookup_symtab (copy); |
1820 | if (file_symtab == 0) | |
f3c39e76 | 1821 | { |
b96e2927 PA |
1822 | if (!have_full_symbols () && !have_partial_symbols ()) |
1823 | throw_error (NOT_FOUND_ERROR, | |
3e43a32a MS |
1824 | _("No symbol table is loaded. " |
1825 | "Use the \"file\" command.")); | |
109c3e39 | 1826 | throw_error (NOT_FOUND_ERROR, _("No source file named %s."), copy); |
f3c39e76 DC |
1827 | } |
1828 | ||
1829 | /* Discard the file name from the arg. */ | |
1830 | p = p1 + 1; | |
1831 | while (*p == ' ' || *p == '\t') | |
1832 | p++; | |
1833 | *argptr = p; | |
1834 | ||
94cd26f8 | 1835 | return file_symtab; |
f3c39e76 DC |
1836 | } |
1837 | ||
9ef07c8c TT |
1838 | /* Look up a function symbol in *ARGPTR. If found, advance *ARGPTR |
1839 | and return the symbol. If not found, return NULL. */ | |
1840 | ||
1841 | static struct symbol * | |
1842 | find_function_symbol (char **argptr, char *p, int is_quote_enclosed) | |
1843 | { | |
1844 | char *p1; | |
1845 | char *copy; | |
1846 | struct symbol *function_symbol; | |
1847 | ||
1848 | p1 = p; | |
1849 | while (p != *argptr && p[-1] == ' ') | |
1850 | --p; | |
1851 | if ((*p == '"') && is_quote_enclosed) | |
1852 | --p; | |
1853 | copy = (char *) alloca (p - *argptr + 1); | |
1854 | memcpy (copy, *argptr, p - *argptr); | |
1855 | /* It may have the ending quote right after the file name. */ | |
1856 | if ((is_quote_enclosed && copy[p - *argptr - 1] == '"') | |
1857 | || copy[p - *argptr - 1] == '\'') | |
1858 | copy[p - *argptr - 1] = 0; | |
1859 | else | |
1860 | copy[p - *argptr] = 0; | |
1861 | ||
1862 | function_symbol = lookup_symbol (copy, get_selected_block (0), | |
1863 | VAR_DOMAIN, 0); | |
1864 | if (!function_symbol || SYMBOL_CLASS (function_symbol) != LOC_BLOCK) | |
1865 | return NULL; | |
1866 | ||
1867 | /* Discard the file name from the arg. */ | |
1868 | p = p1 + 1; | |
1869 | while (*p == ' ' || *p == '\t') | |
1870 | p++; | |
1871 | *argptr = p; | |
1872 | ||
1873 | return function_symbol; | |
1874 | } | |
1875 | ||
84fba31b DC |
1876 | \f |
1877 | ||
1878 | /* This decodes a line where the argument is all digits (possibly | |
1879 | preceded by a sign). Q should point to the end of those digits; | |
1880 | the other arguments are as usual. */ | |
1881 | ||
1882 | static struct symtabs_and_lines | |
1883 | decode_all_digits (char **argptr, struct symtab *default_symtab, | |
7efd8fc2 | 1884 | int default_line, struct linespec_result *canonical, |
88d262ca | 1885 | struct symtab *file_symtab, char *q) |
84fba31b DC |
1886 | |
1887 | { | |
1888 | struct symtabs_and_lines values; | |
1889 | struct symtab_and_line val; | |
1890 | ||
1891 | enum sign | |
1892 | { | |
1893 | none, plus, minus | |
1894 | } | |
1895 | sign = none; | |
1896 | ||
1897 | /* We might need a canonical line spec if no file was specified. */ | |
46be51c4 | 1898 | int need_canonical = (file_symtab == NULL) ? 1 : 0; |
84fba31b DC |
1899 | |
1900 | init_sal (&val); | |
1901 | ||
6c95b8df PA |
1902 | val.pspace = current_program_space; |
1903 | ||
84fba31b DC |
1904 | /* This is where we need to make sure that we have good defaults. |
1905 | We must guarantee that this section of code is never executed | |
1906 | when we are called with just a function name, since | |
1907 | set_default_source_symtab_and_line uses | |
a04257e6 | 1908 | select_source_symtab that calls us with such an argument. */ |
84fba31b | 1909 | |
88d262ca | 1910 | if (file_symtab == 0 && default_symtab == 0) |
84fba31b | 1911 | { |
a04257e6 | 1912 | /* Make sure we have at least a default source file. */ |
84fba31b DC |
1913 | set_default_source_symtab_and_line (); |
1914 | initialize_defaults (&default_symtab, &default_line); | |
1915 | } | |
1916 | ||
1917 | if (**argptr == '+') | |
1918 | sign = plus, (*argptr)++; | |
1919 | else if (**argptr == '-') | |
1920 | sign = minus, (*argptr)++; | |
1921 | val.line = atoi (*argptr); | |
1922 | switch (sign) | |
1923 | { | |
1924 | case plus: | |
1925 | if (q == *argptr) | |
1926 | val.line = 5; | |
88d262ca | 1927 | if (file_symtab == 0) |
84fba31b DC |
1928 | val.line = default_line + val.line; |
1929 | break; | |
1930 | case minus: | |
1931 | if (q == *argptr) | |
1932 | val.line = 15; | |
88d262ca | 1933 | if (file_symtab == 0) |
84fba31b DC |
1934 | val.line = default_line - val.line; |
1935 | else | |
1936 | val.line = 1; | |
1937 | break; | |
1938 | case none: | |
1939 | break; /* No need to adjust val.line. */ | |
1940 | } | |
1941 | ||
1942 | while (*q == ' ' || *q == '\t') | |
1943 | q++; | |
1944 | *argptr = q; | |
88d262ca DC |
1945 | if (file_symtab == 0) |
1946 | file_symtab = default_symtab; | |
84fba31b DC |
1947 | |
1948 | /* It is possible that this source file has more than one symtab, | |
1949 | and that the new line number specification has moved us from the | |
88d262ca DC |
1950 | default (in file_symtab) to a new one. */ |
1951 | val.symtab = find_line_symtab (file_symtab, val.line, NULL, NULL); | |
84fba31b | 1952 | if (val.symtab == 0) |
88d262ca | 1953 | val.symtab = file_symtab; |
84fba31b | 1954 | |
6c95b8df | 1955 | val.pspace = SYMTAB_PSPACE (val.symtab); |
84fba31b DC |
1956 | val.pc = 0; |
1957 | values.sals = (struct symtab_and_line *) | |
1958 | xmalloc (sizeof (struct symtab_and_line)); | |
1959 | values.sals[0] = val; | |
1960 | values.nelts = 1; | |
1961 | if (need_canonical) | |
1962 | build_canonical_line_spec (values.sals, NULL, canonical); | |
ed0616c6 | 1963 | values.sals[0].explicit_line = 1; |
84fba31b DC |
1964 | return values; |
1965 | } | |
f3c39e76 | 1966 | |
614b3b14 DC |
1967 | \f |
1968 | ||
14e91ac5 DC |
1969 | /* Decode a linespec starting with a dollar sign. */ |
1970 | ||
1971 | static struct symtabs_and_lines | |
1972 | decode_dollar (char *copy, int funfirstline, struct symtab *default_symtab, | |
7efd8fc2 | 1973 | struct linespec_result *canonical, struct symtab *file_symtab) |
14e91ac5 | 1974 | { |
4fa62494 | 1975 | LONGEST valx; |
14e91ac5 DC |
1976 | int index = 0; |
1977 | int need_canonical = 0; | |
1978 | struct symtabs_and_lines values; | |
1979 | struct symtab_and_line val; | |
1980 | char *p; | |
1981 | struct symbol *sym; | |
14e91ac5 DC |
1982 | struct minimal_symbol *msymbol; |
1983 | ||
1984 | p = (copy[1] == '$') ? copy + 2 : copy + 1; | |
1985 | while (*p >= '0' && *p <= '9') | |
1986 | p++; | |
a04257e6 | 1987 | if (!*p) /* Reached end of token without hitting non-digit. */ |
14e91ac5 | 1988 | { |
a04257e6 | 1989 | /* We have a value history reference. */ |
4fa62494 | 1990 | struct value *val_history; |
e0881a8e | 1991 | |
14e91ac5 | 1992 | sscanf ((copy[1] == '$') ? copy + 2 : copy + 1, "%d", &index); |
4fa62494 UW |
1993 | val_history = access_value_history ((copy[1] == '$') ? -index : index); |
1994 | if (TYPE_CODE (value_type (val_history)) != TYPE_CODE_INT) | |
3e43a32a MS |
1995 | error (_("History values used in line " |
1996 | "specs must have integer values.")); | |
4fa62494 | 1997 | valx = value_as_long (val_history); |
14e91ac5 DC |
1998 | } |
1999 | else | |
2000 | { | |
2001 | /* Not all digits -- may be user variable/function or a | |
a04257e6 | 2002 | convenience variable. */ |
14e91ac5 | 2003 | |
a04257e6 | 2004 | /* Look up entire name as a symbol first. */ |
2570f2b7 | 2005 | sym = lookup_symbol (copy, 0, VAR_DOMAIN, 0); |
46be51c4 | 2006 | file_symtab = (struct symtab *) NULL; |
14e91ac5 DC |
2007 | need_canonical = 1; |
2008 | /* Symbol was found --> jump to normal symbol processing. */ | |
2009 | if (sym) | |
9ef07c8c | 2010 | return symbol_found (funfirstline, canonical, copy, sym, NULL, NULL); |
14e91ac5 | 2011 | |
a04257e6 | 2012 | /* If symbol was not found, look in minimal symbol tables. */ |
14e91ac5 | 2013 | msymbol = lookup_minimal_symbol (copy, NULL, NULL); |
a04257e6 | 2014 | /* Min symbol was found --> jump to minsym processing. */ |
14e91ac5 DC |
2015 | if (msymbol) |
2016 | return minsym_found (funfirstline, msymbol); | |
2017 | ||
a04257e6 | 2018 | /* Not a user variable or function -- must be convenience variable. */ |
4fa62494 | 2019 | if (!get_internalvar_integer (lookup_internalvar (copy + 1), &valx)) |
3e43a32a MS |
2020 | error (_("Convenience variables used in line " |
2021 | "specs must have integer values.")); | |
14e91ac5 DC |
2022 | } |
2023 | ||
2024 | init_sal (&val); | |
2025 | ||
a04257e6 | 2026 | /* Either history value or convenience value from above, in valx. */ |
88d262ca | 2027 | val.symtab = file_symtab ? file_symtab : default_symtab; |
4fa62494 | 2028 | val.line = valx; |
14e91ac5 | 2029 | val.pc = 0; |
6c95b8df | 2030 | val.pspace = current_program_space; |
14e91ac5 DC |
2031 | |
2032 | values.sals = (struct symtab_and_line *) xmalloc (sizeof val); | |
2033 | values.sals[0] = val; | |
2034 | values.nelts = 1; | |
2035 | ||
2036 | if (need_canonical) | |
2037 | build_canonical_line_spec (values.sals, NULL, canonical); | |
2038 | ||
2039 | return values; | |
2040 | } | |
2041 | ||
bca02a8a DC |
2042 | \f |
2043 | ||
0f5238ed TT |
2044 | /* A helper for decode_line_1 that tries to find a label. The label |
2045 | is searched for in the current block. | |
9ef07c8c TT |
2046 | FUNCTION_SYMBOL is the enclosing function; or NULL if none |
2047 | specified. | |
0f5238ed TT |
2048 | COPY is the name of the label to find. |
2049 | CANONICAL is the same as the "canonical" argument to decode_line_1. | |
2050 | RESULT is a pointer to a symtabs_and_lines structure which will be | |
2051 | filled in on success. | |
2052 | This function returns 1 if a label was found, 0 otherwise. */ | |
2053 | ||
2054 | static int | |
9ef07c8c TT |
2055 | decode_label (struct symbol *function_symbol, char *copy, |
2056 | struct linespec_result *canonical, | |
7efd8fc2 | 2057 | struct symtabs_and_lines *result) |
0f5238ed TT |
2058 | { |
2059 | struct symbol *sym; | |
9ef07c8c TT |
2060 | struct block *block; |
2061 | ||
2062 | if (function_symbol) | |
2063 | block = SYMBOL_BLOCK_VALUE (function_symbol); | |
2064 | else | |
2065 | { | |
2066 | block = get_selected_block (0); | |
2067 | for (; | |
2068 | block && !BLOCK_FUNCTION (block); | |
2069 | block = BLOCK_SUPERBLOCK (block)) | |
2070 | ; | |
2071 | if (!block) | |
2072 | return 0; | |
2073 | function_symbol = BLOCK_FUNCTION (block); | |
2074 | } | |
0f5238ed | 2075 | |
9ef07c8c | 2076 | sym = lookup_symbol (copy, block, LABEL_DOMAIN, 0); |
0f5238ed TT |
2077 | |
2078 | if (sym != NULL) | |
9ef07c8c | 2079 | *result = symbol_found (0, canonical, copy, sym, NULL, function_symbol); |
0f5238ed TT |
2080 | |
2081 | return sym != NULL; | |
2082 | } | |
2083 | ||
88d262ca | 2084 | /* Decode a linespec that's a variable. If FILE_SYMTAB is non-NULL, |
58438ac1 | 2085 | look in that symtab's static variables first. */ |
bca02a8a DC |
2086 | |
2087 | static struct symtabs_and_lines | |
7efd8fc2 TT |
2088 | decode_variable (char *copy, int funfirstline, |
2089 | struct linespec_result *canonical, | |
58438ac1 | 2090 | struct symtab *file_symtab) |
bca02a8a DC |
2091 | { |
2092 | struct symbol *sym; | |
bca02a8a DC |
2093 | struct minimal_symbol *msymbol; |
2094 | ||
e8eb7bc5 | 2095 | sym = lookup_symbol (copy, get_search_block (file_symtab), |
2570f2b7 | 2096 | VAR_DOMAIN, 0); |
bca02a8a DC |
2097 | |
2098 | if (sym != NULL) | |
9ef07c8c | 2099 | return symbol_found (funfirstline, canonical, copy, sym, file_symtab, NULL); |
bca02a8a DC |
2100 | |
2101 | msymbol = lookup_minimal_symbol (copy, NULL, NULL); | |
2102 | ||
2103 | if (msymbol != NULL) | |
2104 | return minsym_found (funfirstline, msymbol); | |
2105 | ||
b96e2927 PA |
2106 | if (!have_full_symbols () |
2107 | && !have_partial_symbols () | |
2108 | && !have_minimal_symbols ()) | |
2109 | throw_error (NOT_FOUND_ERROR, | |
2110 | _("No symbol table is loaded. Use the \"file\" command.")); | |
109c3e39 | 2111 | throw_error (NOT_FOUND_ERROR, _("Function \"%s\" not defined."), copy); |
bca02a8a DC |
2112 | } |
2113 | ||
2114 | ||
14e91ac5 DC |
2115 | \f |
2116 | ||
413dad4d DC |
2117 | /* Now come some functions that are called from multiple places within |
2118 | decode_line_1. */ | |
2119 | ||
2120 | /* We've found a symbol SYM to associate with our linespec; build a | |
2121 | corresponding struct symtabs_and_lines. */ | |
2122 | ||
2123 | static struct symtabs_and_lines | |
7efd8fc2 | 2124 | symbol_found (int funfirstline, struct linespec_result *canonical, char *copy, |
9ef07c8c TT |
2125 | struct symbol *sym, struct symtab *file_symtab, |
2126 | struct symbol *function_symbol) | |
413dad4d DC |
2127 | { |
2128 | struct symtabs_and_lines values; | |
2129 | ||
2130 | if (SYMBOL_CLASS (sym) == LOC_BLOCK) | |
50641945 | 2131 | { |
1777feb0 | 2132 | /* Arg is the name of a function. */ |
50641945 FN |
2133 | values.sals = (struct symtab_and_line *) |
2134 | xmalloc (sizeof (struct symtab_and_line)); | |
413dad4d DC |
2135 | values.sals[0] = find_function_start_sal (sym, funfirstline); |
2136 | values.nelts = 1; | |
2137 | ||
2138 | /* Don't use the SYMBOL_LINE; if used at all it points to | |
2139 | the line containing the parameters or thereabouts, not | |
2140 | the first line of code. */ | |
2141 | ||
2142 | /* We might need a canonical line spec if it is a static | |
2143 | function. */ | |
88d262ca | 2144 | if (file_symtab == 0) |
50641945 | 2145 | { |
2570f2b7 | 2146 | struct blockvector *bv = BLOCKVECTOR (SYMBOL_SYMTAB (sym)); |
413dad4d | 2147 | struct block *b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); |
e0881a8e | 2148 | |
94af9270 | 2149 | if (lookup_block_symbol (b, copy, VAR_DOMAIN) != NULL) |
413dad4d | 2150 | build_canonical_line_spec (values.sals, copy, canonical); |
50641945 | 2151 | } |
50641945 FN |
2152 | return values; |
2153 | } | |
413dad4d DC |
2154 | else |
2155 | { | |
62853458 | 2156 | if (SYMBOL_CLASS (sym) == LOC_LABEL && SYMBOL_VALUE_ADDRESS (sym) != 0) |
413dad4d DC |
2157 | { |
2158 | /* We know its line number. */ | |
2159 | values.sals = (struct symtab_and_line *) | |
2160 | xmalloc (sizeof (struct symtab_and_line)); | |
2161 | values.nelts = 1; | |
9ef07c8c | 2162 | init_sal (&values.sals[0]); |
2570f2b7 | 2163 | values.sals[0].symtab = SYMBOL_SYMTAB (sym); |
413dad4d | 2164 | values.sals[0].line = SYMBOL_LINE (sym); |
9ef07c8c | 2165 | values.sals[0].pc = SYMBOL_VALUE_ADDRESS (sym); |
0f5238ed | 2166 | values.sals[0].pspace = SYMTAB_PSPACE (SYMBOL_SYMTAB (sym)); |
9ef07c8c TT |
2167 | values.sals[0].explicit_pc = 1; |
2168 | ||
2169 | if (canonical) | |
2170 | { | |
2171 | canonical->special_display = 1; | |
2172 | canonical->canonical = xmalloc (sizeof (char *)); | |
2173 | canonical->canonical[0] | |
2174 | = xstrprintf ("%s:%s", | |
2175 | SYMBOL_NATURAL_NAME (function_symbol), | |
2176 | SYMBOL_NATURAL_NAME (sym)); | |
2177 | } | |
2178 | ||
413dad4d DC |
2179 | return values; |
2180 | } | |
62853458 | 2181 | else if (funfirstline) |
dcf9f4ab JK |
2182 | { |
2183 | /* NOT_FOUND_ERROR is not correct but it ensures COPY will be | |
2184 | searched also as a minimal symbol. */ | |
2185 | ||
2186 | throw_error (NOT_FOUND_ERROR, _("\"%s\" is not a function"), copy); | |
2187 | } | |
62853458 TT |
2188 | else if (SYMBOL_LINE (sym) != 0) |
2189 | { | |
2190 | /* We know its line number. */ | |
2191 | values.sals = (struct symtab_and_line *) | |
2192 | xmalloc (sizeof (struct symtab_and_line)); | |
2193 | values.nelts = 1; | |
2194 | memset (&values.sals[0], 0, sizeof (values.sals[0])); | |
2195 | values.sals[0].symtab = SYMBOL_SYMTAB (sym); | |
2196 | values.sals[0].line = SYMBOL_LINE (sym); | |
2197 | values.sals[0].pspace = SYMTAB_PSPACE (SYMBOL_SYMTAB (sym)); | |
2198 | return values; | |
2199 | } | |
413dad4d DC |
2200 | else |
2201 | /* This can happen if it is compiled with a compiler which doesn't | |
2202 | put out line numbers for variables. */ | |
2203 | /* FIXME: Shouldn't we just set .line and .symtab to zero | |
2204 | and return? For example, "info line foo" could print | |
2205 | the address. */ | |
8a3fe4f8 | 2206 | error (_("Line number not known for symbol \"%s\""), copy); |
413dad4d DC |
2207 | } |
2208 | } | |
50641945 | 2209 | |
413dad4d DC |
2210 | /* We've found a minimal symbol MSYMBOL to associate with our |
2211 | linespec; build a corresponding struct symtabs_and_lines. */ | |
50641945 | 2212 | |
413dad4d DC |
2213 | static struct symtabs_and_lines |
2214 | minsym_found (int funfirstline, struct minimal_symbol *msymbol) | |
2215 | { | |
bccdca4a UW |
2216 | struct objfile *objfile = msymbol_objfile (msymbol); |
2217 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
413dad4d | 2218 | struct symtabs_and_lines values; |
bccdca4a | 2219 | CORE_ADDR pc; |
413dad4d DC |
2220 | |
2221 | values.sals = (struct symtab_and_line *) | |
2222 | xmalloc (sizeof (struct symtab_and_line)); | |
2223 | values.sals[0] = find_pc_sect_line (SYMBOL_VALUE_ADDRESS (msymbol), | |
714835d5 UW |
2224 | (struct obj_section *) 0, 0); |
2225 | values.sals[0].section = SYMBOL_OBJ_SECTION (msymbol); | |
bccdca4a UW |
2226 | |
2227 | /* The minimal symbol might point to a function descriptor; | |
2228 | resolve it to the actual code address instead. */ | |
2229 | pc = gdbarch_convert_from_func_ptr_addr (gdbarch, | |
2230 | values.sals[0].pc, | |
2231 | ¤t_target); | |
2232 | if (pc != values.sals[0].pc) | |
2233 | values.sals[0] = find_pc_sect_line (pc, NULL, 0); | |
2234 | ||
413dad4d | 2235 | if (funfirstline) |
059acae7 | 2236 | skip_prologue_sal (&values.sals[0]); |
e48883f7 | 2237 | |
413dad4d DC |
2238 | values.nelts = 1; |
2239 | return values; | |
50641945 | 2240 | } |
7efd8fc2 TT |
2241 | |
2242 | void | |
2243 | init_linespec_result (struct linespec_result *lr) | |
2244 | { | |
2245 | memset (lr, 0, sizeof (*lr)); | |
2246 | } |