]>
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" |
c00f8484 KS |
44 | #include <ctype.h> |
45 | #include "cli/cli-utils.h" | |
731971ed | 46 | #include "filenames.h" |
50641945 | 47 | |
1777feb0 | 48 | /* Prototypes for local functions. */ |
50641945 | 49 | |
44fe14ab DC |
50 | static void initialize_defaults (struct symtab **default_symtab, |
51 | int *default_line); | |
52 | ||
53 | static struct symtabs_and_lines decode_indirect (char **argptr); | |
54 | ||
0960f083 DC |
55 | static char *locate_first_half (char **argptr, int *is_quote_enclosed); |
56 | ||
d2630e69 AF |
57 | static struct symtabs_and_lines decode_objc (char **argptr, |
58 | int funfirstline, | |
59 | struct symtab *file_symtab, | |
7efd8fc2 | 60 | struct linespec_result *canonical, |
d2630e69 AF |
61 | char *saved_arg); |
62 | ||
614b3b14 DC |
63 | static struct symtabs_and_lines decode_compound (char **argptr, |
64 | int funfirstline, | |
7efd8fc2 | 65 | struct linespec_result *canonical, |
e8eb7bc5 | 66 | struct symtab *file_symtab, |
614b3b14 | 67 | char *saved_arg, |
58438ac1 | 68 | char *p); |
614b3b14 | 69 | |
e8eb7bc5 KS |
70 | static struct symbol *lookup_prefix_sym (char **argptr, char *p, |
71 | struct symtab *); | |
93d91629 | 72 | |
4224873a | 73 | static struct symtabs_and_lines find_method (int funfirstline, |
7efd8fc2 | 74 | struct linespec_result *canonical, |
4224873a DC |
75 | char *saved_arg, |
76 | char *copy, | |
77 | struct type *t, | |
e8eb7bc5 KS |
78 | struct symbol *sym_class, |
79 | struct symtab *); | |
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 | 86 | static int find_methods (struct type *, char *, |
e8eb7bc5 | 87 | enum language, struct symbol **, struct symtab *); |
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 | 97 | static void build_canonical_line_spec (struct symtab_and_line *, |
7efd8fc2 | 98 | char *, struct linespec_result *); |
50641945 FN |
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 | 104 | static struct symtabs_and_lines decode_line_2 (struct symbol *[], |
7efd8fc2 TT |
105 | int, int, |
106 | struct linespec_result *); | |
50641945 | 107 | |
f3c39e76 | 108 | static struct symtab *symtab_from_filename (char **argptr, |
58438ac1 | 109 | char *p, int is_quote_enclosed); |
f3c39e76 | 110 | |
9ef07c8c TT |
111 | static struct symbol *find_function_symbol (char **argptr, char *p, |
112 | int is_quote_enclosed); | |
113 | ||
84fba31b DC |
114 | static struct |
115 | symtabs_and_lines decode_all_digits (char **argptr, | |
116 | struct symtab *default_symtab, | |
117 | int default_line, | |
7efd8fc2 | 118 | struct linespec_result *canonical, |
88d262ca | 119 | struct symtab *file_symtab, |
84fba31b DC |
120 | char *q); |
121 | ||
14e91ac5 DC |
122 | static struct symtabs_and_lines decode_dollar (char *copy, |
123 | int funfirstline, | |
124 | struct symtab *default_symtab, | |
7efd8fc2 | 125 | struct linespec_result *canonical, |
88d262ca | 126 | struct symtab *file_symtab); |
14e91ac5 | 127 | |
9ef07c8c TT |
128 | static int decode_label (struct symbol *function_symbol, |
129 | char *copy, struct linespec_result *canonical, | |
0f5238ed TT |
130 | struct symtabs_and_lines *result); |
131 | ||
bca02a8a DC |
132 | static struct symtabs_and_lines decode_variable (char *copy, |
133 | int funfirstline, | |
7efd8fc2 | 134 | struct linespec_result *canonical, |
58438ac1 | 135 | struct symtab *file_symtab); |
bca02a8a | 136 | |
413dad4d DC |
137 | static struct |
138 | symtabs_and_lines symbol_found (int funfirstline, | |
7efd8fc2 | 139 | struct linespec_result *canonical, |
413dad4d DC |
140 | char *copy, |
141 | struct symbol *sym, | |
9ef07c8c TT |
142 | struct symtab *file_symtab, |
143 | struct symbol *function_symbol); | |
413dad4d DC |
144 | |
145 | static struct | |
146 | symtabs_and_lines minsym_found (int funfirstline, | |
147 | struct minimal_symbol *msymbol); | |
148 | ||
1777feb0 | 149 | /* Helper functions. */ |
50641945 | 150 | |
255e7dbf AC |
151 | /* Issue a helpful hint on using the command completion feature on |
152 | single quoted demangled C++ symbols as part of the completion | |
153 | error. */ | |
50641945 | 154 | |
c25c4a8b | 155 | static void |
255e7dbf | 156 | cplusplus_error (const char *name, const char *fmt, ...) |
50641945 | 157 | { |
255e7dbf | 158 | struct ui_file *tmp_stream; |
f3a5f1de | 159 | char *message; |
e0881a8e | 160 | |
255e7dbf AC |
161 | tmp_stream = mem_fileopen (); |
162 | make_cleanup_ui_file_delete (tmp_stream); | |
163 | ||
164 | { | |
165 | va_list args; | |
e0881a8e | 166 | |
255e7dbf AC |
167 | va_start (args, fmt); |
168 | vfprintf_unfiltered (tmp_stream, fmt, args); | |
169 | va_end (args); | |
170 | } | |
171 | ||
50641945 FN |
172 | while (*name == '\'') |
173 | name++; | |
255e7dbf AC |
174 | fprintf_unfiltered (tmp_stream, |
175 | ("Hint: try '%s<TAB> or '%s<ESC-?>\n" | |
176 | "(Note leading single quote.)"), | |
177 | name, name); | |
f3a5f1de | 178 | |
759ef836 PA |
179 | message = ui_file_xstrdup (tmp_stream, NULL); |
180 | make_cleanup (xfree, message); | |
181 | throw_error (NOT_FOUND_ERROR, "%s", message); | |
50641945 FN |
182 | } |
183 | ||
184 | /* Return the number of methods described for TYPE, including the | |
1777feb0 | 185 | methods from types it derives from. This can't be done in the symbol |
50641945 FN |
186 | reader because the type of the baseclass might still be stubbed |
187 | when the definition of the derived class is parsed. */ | |
188 | ||
189 | static int | |
190 | total_number_of_methods (struct type *type) | |
191 | { | |
192 | int n; | |
193 | int count; | |
194 | ||
195 | CHECK_TYPEDEF (type); | |
b4ba55a1 | 196 | if (! HAVE_CPLUS_STRUCT (type)) |
50641945 FN |
197 | return 0; |
198 | count = TYPE_NFN_FIELDS_TOTAL (type); | |
199 | ||
200 | for (n = 0; n < TYPE_N_BASECLASSES (type); n++) | |
201 | count += total_number_of_methods (TYPE_BASECLASS (type, n)); | |
202 | ||
203 | return count; | |
204 | } | |
205 | ||
e8eb7bc5 KS |
206 | /* Returns the block to be used for symbol searches for the given SYMTAB, |
207 | which may be NULL. */ | |
208 | ||
209 | static struct block * | |
210 | get_search_block (struct symtab *symtab) | |
211 | { | |
212 | struct block *block; | |
213 | ||
214 | if (symtab != NULL) | |
215 | block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (symtab), STATIC_BLOCK); | |
216 | else | |
217 | { | |
218 | enum language save_language; | |
219 | ||
220 | /* get_selected_block can change the current language when there is | |
221 | no selected frame yet. */ | |
222 | save_language = current_language->la_language; | |
223 | block = get_selected_block (0); | |
224 | set_language (save_language); | |
225 | } | |
226 | ||
227 | return block; | |
228 | } | |
229 | ||
50641945 FN |
230 | /* Recursive helper function for decode_line_1. |
231 | Look for methods named NAME in type T. | |
232 | Return number of matches. | |
233 | Put matches in SYM_ARR, which should have been allocated with | |
234 | a size of total_number_of_methods (T) * sizeof (struct symbol *). | |
235 | Note that this function is g++ specific. */ | |
236 | ||
237 | static int | |
53c5240f | 238 | find_methods (struct type *t, char *name, enum language language, |
e8eb7bc5 | 239 | struct symbol **sym_arr, struct symtab *file_symtab) |
50641945 FN |
240 | { |
241 | int i1 = 0; | |
242 | int ibase; | |
50641945 | 243 | char *class_name = type_name_no_tag (t); |
c00f8484 KS |
244 | struct cleanup *cleanup; |
245 | char *canon; | |
246 | ||
247 | /* NAME is typed by the user: it needs to be canonicalized before | |
248 | passing to lookup_symbol. */ | |
3a93a0c2 | 249 | canon = cp_canonicalize_string_no_typedefs (name); |
c00f8484 KS |
250 | if (canon != NULL) |
251 | { | |
252 | name = canon; | |
253 | cleanup = make_cleanup (xfree, name); | |
254 | } | |
255 | else | |
256 | cleanup = make_cleanup (null_cleanup, NULL); | |
50641945 FN |
257 | |
258 | /* Ignore this class if it doesn't have a name. This is ugly, but | |
259 | unless we figure out how to get the physname without the name of | |
260 | the class, then the loop can't do any good. */ | |
261 | if (class_name | |
e8eb7bc5 | 262 | && (lookup_symbol_in_language (class_name, get_search_block (file_symtab), |
2570f2b7 | 263 | STRUCT_DOMAIN, language, (int *) NULL))) |
50641945 FN |
264 | { |
265 | int method_counter; | |
5c717440 | 266 | int name_len = strlen (name); |
50641945 | 267 | |
8bd1f2c6 | 268 | CHECK_TYPEDEF (t); |
50641945 FN |
269 | |
270 | /* Loop over each method name. At this level, all overloads of a name | |
271 | are counted as a single name. There is an inner loop which loops over | |
272 | each overload. */ | |
273 | ||
274 | for (method_counter = TYPE_NFN_FIELDS (t) - 1; | |
275 | method_counter >= 0; | |
276 | --method_counter) | |
277 | { | |
50641945 FN |
278 | char *method_name = TYPE_FN_FIELDLIST_NAME (t, method_counter); |
279 | char dem_opname[64]; | |
280 | ||
281 | if (strncmp (method_name, "__", 2) == 0 || | |
282 | strncmp (method_name, "op", 2) == 0 || | |
283 | strncmp (method_name, "type", 4) == 0) | |
284 | { | |
285 | if (cplus_demangle_opname (method_name, dem_opname, DMGL_ANSI)) | |
286 | method_name = dem_opname; | |
287 | else if (cplus_demangle_opname (method_name, dem_opname, 0)) | |
288 | method_name = dem_opname; | |
289 | } | |
290 | ||
13b57657 | 291 | if (strcmp_iw (name, method_name) == 0) |
50641945 | 292 | /* Find all the overloaded methods with that name. */ |
53c5240f | 293 | i1 += add_matching_methods (method_counter, t, language, |
aee8d8ba | 294 | sym_arr + i1); |
5c717440 DJ |
295 | else if (strncmp (class_name, name, name_len) == 0 |
296 | && (class_name[name_len] == '\0' | |
297 | || class_name[name_len] == '<')) | |
53c5240f | 298 | i1 += add_constructors (method_counter, t, language, |
aee8d8ba | 299 | sym_arr + i1); |
50641945 FN |
300 | } |
301 | } | |
302 | ||
303 | /* Only search baseclasses if there is no match yet, since names in | |
304 | derived classes override those in baseclasses. | |
305 | ||
306 | FIXME: The above is not true; it is only true of member functions | |
307 | if they have the same number of arguments (??? - section 13.1 of the | |
308 | ARM says the function members are not in the same scope but doesn't | |
309 | really spell out the rules in a way I understand. In any case, if | |
310 | the number of arguments differ this is a case in which we can overload | |
311 | rather than hiding without any problem, and gcc 2.4.5 does overload | |
312 | rather than hiding in this case). */ | |
313 | ||
314 | if (i1 == 0) | |
315 | for (ibase = 0; ibase < TYPE_N_BASECLASSES (t); ibase++) | |
53c5240f | 316 | i1 += find_methods (TYPE_BASECLASS (t, ibase), name, |
e8eb7bc5 | 317 | language, sym_arr + i1, file_symtab); |
50641945 | 318 | |
c00f8484 | 319 | do_cleanups (cleanup); |
50641945 FN |
320 | return i1; |
321 | } | |
322 | ||
aee8d8ba DC |
323 | /* Add the symbols associated to methods of the class whose type is T |
324 | and whose name matches the method indexed by METHOD_COUNTER in the | |
325 | array SYM_ARR. Return the number of methods added. */ | |
326 | ||
327 | static int | |
328 | add_matching_methods (int method_counter, struct type *t, | |
53c5240f | 329 | enum language language, struct symbol **sym_arr) |
aee8d8ba DC |
330 | { |
331 | int field_counter; | |
332 | int i1 = 0; | |
333 | ||
334 | for (field_counter = TYPE_FN_FIELDLIST_LENGTH (t, method_counter) - 1; | |
335 | field_counter >= 0; | |
336 | --field_counter) | |
337 | { | |
338 | struct fn_field *f; | |
1d06ead6 | 339 | const char *phys_name; |
aee8d8ba DC |
340 | |
341 | f = TYPE_FN_FIELDLIST1 (t, method_counter); | |
342 | ||
343 | if (TYPE_FN_FIELD_STUB (f, field_counter)) | |
344 | { | |
1d06ead6 | 345 | char *tmp_name, *tmp2; |
aee8d8ba DC |
346 | |
347 | tmp_name = gdb_mangle_name (t, | |
348 | method_counter, | |
349 | field_counter); | |
1d06ead6 TT |
350 | tmp2 = alloca (strlen (tmp_name) + 1); |
351 | strcpy (tmp2, tmp_name); | |
aee8d8ba | 352 | xfree (tmp_name); |
1d06ead6 | 353 | phys_name = tmp2; |
aee8d8ba DC |
354 | } |
355 | else | |
356 | phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter); | |
53c5240f | 357 | |
53c5240f | 358 | sym_arr[i1] = lookup_symbol_in_language (phys_name, |
aee8d8ba | 359 | NULL, VAR_DOMAIN, |
53c5240f | 360 | language, |
2570f2b7 | 361 | (int *) NULL); |
aee8d8ba DC |
362 | if (sym_arr[i1]) |
363 | i1++; | |
364 | else | |
365 | { | |
366 | /* This error message gets printed, but the method | |
1777feb0 | 367 | still seems to be found. |
aee8d8ba DC |
368 | fputs_filtered("(Cannot find method ", gdb_stdout); |
369 | fprintf_symbol_filtered (gdb_stdout, phys_name, | |
1777feb0 MS |
370 | language_cplus, |
371 | DMGL_PARAMS | DMGL_ANSI); | |
aee8d8ba DC |
372 | fputs_filtered(" - possibly inlined.)\n", gdb_stdout); |
373 | */ | |
374 | } | |
375 | } | |
376 | ||
377 | return i1; | |
378 | } | |
379 | ||
380 | /* Add the symbols associated to constructors of the class whose type | |
381 | is CLASS_TYPE and which are indexed by by METHOD_COUNTER to the | |
382 | array SYM_ARR. Return the number of methods added. */ | |
383 | ||
384 | static int | |
385 | add_constructors (int method_counter, struct type *t, | |
53c5240f | 386 | enum language language, struct symbol **sym_arr) |
aee8d8ba DC |
387 | { |
388 | int field_counter; | |
389 | int i1 = 0; | |
390 | ||
391 | /* For GCC 3.x and stabs, constructors and destructors | |
392 | have names like __base_ctor and __complete_dtor. | |
393 | Check the physname for now if we're looking for a | |
394 | constructor. */ | |
395 | for (field_counter | |
396 | = TYPE_FN_FIELDLIST_LENGTH (t, method_counter) - 1; | |
397 | field_counter >= 0; | |
398 | --field_counter) | |
399 | { | |
400 | struct fn_field *f; | |
1d06ead6 | 401 | const char *phys_name; |
53c5240f | 402 | |
aee8d8ba DC |
403 | f = TYPE_FN_FIELDLIST1 (t, method_counter); |
404 | ||
405 | /* GCC 3.x will never produce stabs stub methods, so | |
406 | we don't need to handle this case. */ | |
407 | if (TYPE_FN_FIELD_STUB (f, field_counter)) | |
408 | continue; | |
409 | phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter); | |
410 | if (! is_constructor_name (phys_name)) | |
411 | continue; | |
412 | ||
413 | /* If this method is actually defined, include it in the | |
414 | list. */ | |
53c5240f | 415 | sym_arr[i1] = lookup_symbol_in_language (phys_name, |
aee8d8ba | 416 | NULL, VAR_DOMAIN, |
53c5240f | 417 | language, |
2570f2b7 | 418 | (int *) NULL); |
aee8d8ba DC |
419 | if (sym_arr[i1]) |
420 | i1++; | |
421 | } | |
422 | ||
423 | return i1; | |
424 | } | |
425 | ||
50641945 FN |
426 | /* Helper function for decode_line_1. |
427 | Build a canonical line spec in CANONICAL if it is non-NULL and if | |
428 | the SAL has a symtab. | |
429 | If SYMNAME is non-NULL the canonical line spec is `filename:symname'. | |
430 | If SYMNAME is NULL the line number from SAL is used and the canonical | |
431 | line spec is `filename:linenum'. */ | |
432 | ||
433 | static void | |
434 | build_canonical_line_spec (struct symtab_and_line *sal, char *symname, | |
7efd8fc2 | 435 | struct linespec_result *canonical) |
50641945 FN |
436 | { |
437 | char **canonical_arr; | |
438 | char *canonical_name; | |
439 | char *filename; | |
440 | struct symtab *s = sal->symtab; | |
441 | ||
442 | if (s == (struct symtab *) NULL | |
443 | || s->filename == (char *) NULL | |
7efd8fc2 | 444 | || canonical == NULL) |
50641945 FN |
445 | return; |
446 | ||
447 | canonical_arr = (char **) xmalloc (sizeof (char *)); | |
7efd8fc2 | 448 | canonical->canonical = canonical_arr; |
50641945 FN |
449 | |
450 | filename = s->filename; | |
451 | if (symname != NULL) | |
452 | { | |
453 | canonical_name = xmalloc (strlen (filename) + strlen (symname) + 2); | |
454 | sprintf (canonical_name, "%s:%s", filename, symname); | |
455 | } | |
456 | else | |
457 | { | |
458 | canonical_name = xmalloc (strlen (filename) + 30); | |
459 | sprintf (canonical_name, "%s:%d", filename, sal->line); | |
460 | } | |
461 | canonical_arr[0] = canonical_name; | |
462 | } | |
463 | ||
464 | ||
465 | ||
466 | /* Find an instance of the character C in the string S that is outside | |
467 | of all parenthesis pairs, single-quoted strings, and double-quoted | |
8120c9d5 EZ |
468 | strings. Also, ignore the char within a template name, like a ',' |
469 | within foo<int, int>. */ | |
470 | ||
50641945 FN |
471 | static char * |
472 | find_toplevel_char (char *s, char c) | |
473 | { | |
474 | int quoted = 0; /* zero if we're not in quotes; | |
475 | '"' if we're in a double-quoted string; | |
476 | '\'' if we're in a single-quoted string. */ | |
a04257e6 | 477 | int depth = 0; /* Number of unclosed parens we've seen. */ |
50641945 FN |
478 | char *scan; |
479 | ||
480 | for (scan = s; *scan; scan++) | |
481 | { | |
482 | if (quoted) | |
483 | { | |
484 | if (*scan == quoted) | |
485 | quoted = 0; | |
486 | else if (*scan == '\\' && *(scan + 1)) | |
487 | scan++; | |
488 | } | |
489 | else if (*scan == c && ! quoted && depth == 0) | |
490 | return scan; | |
491 | else if (*scan == '"' || *scan == '\'') | |
492 | quoted = *scan; | |
8120c9d5 | 493 | else if (*scan == '(' || *scan == '<') |
50641945 | 494 | depth++; |
8120c9d5 | 495 | else if ((*scan == ')' || *scan == '>') && depth > 0) |
50641945 FN |
496 | depth--; |
497 | } | |
498 | ||
499 | return 0; | |
500 | } | |
501 | ||
889f28e2 | 502 | /* Determines if the gives string corresponds to an Objective-C method |
1777feb0 | 503 | representation, such as -[Foo bar:] or +[Foo bar]. Objective-C symbols |
889f28e2 AF |
504 | are allowed to have spaces and parentheses in them. */ |
505 | ||
506 | static int | |
507 | is_objc_method_format (const char *s) | |
508 | { | |
509 | if (s == NULL || *s == '\0') | |
510 | return 0; | |
511 | /* Handle arguments with the format FILENAME:SYMBOL. */ | |
512 | if ((s[0] == ':') && (strchr ("+-", s[1]) != NULL) | |
513 | && (s[2] == '[') && strchr(s, ']')) | |
514 | return 1; | |
515 | /* Handle arguments that are just SYMBOL. */ | |
516 | else if ((strchr ("+-", s[0]) != NULL) && (s[1] == '[') && strchr(s, ']')) | |
517 | return 1; | |
518 | return 0; | |
519 | } | |
520 | ||
50641945 FN |
521 | /* Given a list of NELTS symbols in SYM_ARR, return a list of lines to |
522 | operate on (ask user if necessary). | |
523 | If CANONICAL is non-NULL return a corresponding array of mangled names | |
524 | as canonical line specs there. */ | |
525 | ||
526 | static struct symtabs_and_lines | |
527 | decode_line_2 (struct symbol *sym_arr[], int nelts, int funfirstline, | |
7efd8fc2 | 528 | struct linespec_result *canonical) |
50641945 FN |
529 | { |
530 | struct symtabs_and_lines values, return_values; | |
531 | char *args, *arg1; | |
532 | int i; | |
533 | char *prompt; | |
534 | char *symname; | |
535 | struct cleanup *old_chain; | |
536 | char **canonical_arr = (char **) NULL; | |
717d2f5a | 537 | const char *select_mode = multiple_symbols_select_mode (); |
50641945 | 538 | |
717d2f5a | 539 | if (select_mode == multiple_symbols_cancel) |
3e43a32a MS |
540 | error (_("canceled because the command is ambiguous\n" |
541 | "See set/show multiple-symbol.")); | |
717d2f5a | 542 | |
50641945 FN |
543 | values.sals = (struct symtab_and_line *) |
544 | alloca (nelts * sizeof (struct symtab_and_line)); | |
545 | return_values.sals = (struct symtab_and_line *) | |
546 | xmalloc (nelts * sizeof (struct symtab_and_line)); | |
b8c9b27d | 547 | old_chain = make_cleanup (xfree, return_values.sals); |
50641945 FN |
548 | |
549 | if (canonical) | |
550 | { | |
551 | canonical_arr = (char **) xmalloc (nelts * sizeof (char *)); | |
b8c9b27d | 552 | make_cleanup (xfree, canonical_arr); |
50641945 | 553 | memset (canonical_arr, 0, nelts * sizeof (char *)); |
7efd8fc2 | 554 | canonical->canonical = canonical_arr; |
50641945 FN |
555 | } |
556 | ||
557 | i = 0; | |
50641945 FN |
558 | while (i < nelts) |
559 | { | |
a04257e6 | 560 | init_sal (&return_values.sals[i]); /* Initialize to zeroes. */ |
fe39c653 | 561 | init_sal (&values.sals[i]); |
50641945 | 562 | if (sym_arr[i] && SYMBOL_CLASS (sym_arr[i]) == LOC_BLOCK) |
717d2f5a | 563 | values.sals[i] = find_function_start_sal (sym_arr[i], funfirstline); |
50641945 FN |
564 | i++; |
565 | } | |
566 | ||
717d2f5a JB |
567 | /* If select_mode is "all", then do not print the multiple-choice |
568 | menu and act as if the user had chosen choice "1" (all). */ | |
dc67126b NR |
569 | if (select_mode == multiple_symbols_all |
570 | || ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ()))) | |
717d2f5a JB |
571 | args = "1"; |
572 | else | |
50641945 | 573 | { |
717d2f5a JB |
574 | i = 0; |
575 | printf_unfiltered (_("[0] cancel\n[1] all\n")); | |
576 | while (i < nelts) | |
577 | { | |
578 | if (sym_arr[i] && SYMBOL_CLASS (sym_arr[i]) == LOC_BLOCK) | |
579 | { | |
580 | if (values.sals[i].symtab) | |
581 | printf_unfiltered ("[%d] %s at %s:%d\n", | |
582 | (i + 2), | |
583 | SYMBOL_PRINT_NAME (sym_arr[i]), | |
584 | values.sals[i].symtab->filename, | |
585 | values.sals[i].line); | |
586 | else | |
3e43a32a MS |
587 | printf_unfiltered (_("[%d] %s at ?FILE:%d [No symtab? " |
588 | "Probably broken debug info...]\n"), | |
717d2f5a JB |
589 | (i + 2), |
590 | SYMBOL_PRINT_NAME (sym_arr[i]), | |
591 | values.sals[i].line); | |
592 | ||
593 | } | |
594 | else | |
595 | printf_unfiltered (_("?HERE\n")); | |
596 | i++; | |
597 | } | |
598 | ||
599 | prompt = getenv ("PS2"); | |
600 | if (prompt == NULL) | |
601 | { | |
602 | prompt = "> "; | |
603 | } | |
604 | args = command_line_input (prompt, 0, "overload-choice"); | |
50641945 | 605 | } |
50641945 FN |
606 | |
607 | if (args == 0 || *args == 0) | |
e2e0b3e5 | 608 | error_no_arg (_("one or more choice numbers")); |
50641945 FN |
609 | |
610 | i = 0; | |
611 | while (*args) | |
612 | { | |
613 | int num; | |
614 | ||
615 | arg1 = args; | |
616 | while (*arg1 >= '0' && *arg1 <= '9') | |
617 | arg1++; | |
618 | if (*arg1 && *arg1 != ' ' && *arg1 != '\t') | |
8a3fe4f8 | 619 | error (_("Arguments must be choice numbers.")); |
50641945 FN |
620 | |
621 | num = atoi (args); | |
622 | ||
623 | if (num == 0) | |
8a3fe4f8 | 624 | error (_("canceled")); |
50641945 FN |
625 | else if (num == 1) |
626 | { | |
627 | if (canonical_arr) | |
628 | { | |
629 | for (i = 0; i < nelts; i++) | |
630 | { | |
631 | if (canonical_arr[i] == NULL) | |
632 | { | |
3567439c | 633 | symname = SYMBOL_LINKAGE_NAME (sym_arr[i]); |
1b36a34b | 634 | canonical_arr[i] = xstrdup (symname); |
50641945 FN |
635 | } |
636 | } | |
637 | } | |
638 | memcpy (return_values.sals, values.sals, | |
639 | (nelts * sizeof (struct symtab_and_line))); | |
640 | return_values.nelts = nelts; | |
641 | discard_cleanups (old_chain); | |
642 | return return_values; | |
643 | } | |
644 | ||
645 | if (num >= nelts + 2) | |
646 | { | |
a3f17187 | 647 | printf_unfiltered (_("No choice number %d.\n"), num); |
50641945 FN |
648 | } |
649 | else | |
650 | { | |
651 | num -= 2; | |
652 | if (values.sals[num].pc) | |
653 | { | |
654 | if (canonical_arr) | |
655 | { | |
3567439c | 656 | symname = SYMBOL_LINKAGE_NAME (sym_arr[num]); |
b8c9b27d | 657 | make_cleanup (xfree, symname); |
1b36a34b | 658 | canonical_arr[i] = xstrdup (symname); |
50641945 FN |
659 | } |
660 | return_values.sals[i++] = values.sals[num]; | |
661 | values.sals[num].pc = 0; | |
662 | } | |
663 | else | |
664 | { | |
3e43a32a MS |
665 | printf_unfiltered (_("duplicate request for %d ignored.\n"), |
666 | num); | |
50641945 FN |
667 | } |
668 | } | |
669 | ||
670 | args = arg1; | |
671 | while (*args == ' ' || *args == '\t') | |
672 | args++; | |
673 | } | |
674 | return_values.nelts = i; | |
675 | discard_cleanups (old_chain); | |
676 | return return_values; | |
677 | } | |
94af9270 | 678 | |
3d50dd94 JK |
679 | /* Valid delimiters for linespec keywords "if", "thread" or "task". */ |
680 | ||
681 | static int | |
682 | is_linespec_boundary (char c) | |
683 | { | |
684 | return c == ' ' || c == '\t' || c == '\0' || c == ','; | |
685 | } | |
686 | ||
94af9270 KS |
687 | /* A helper function for decode_line_1 and friends which skips P |
688 | past any method overload information at the beginning of P, e.g., | |
689 | "(const struct foo *)". | |
690 | ||
691 | This function assumes that P has already been validated to contain | |
692 | overload information, and it will assert if *P != '('. */ | |
693 | static char * | |
694 | find_method_overload_end (char *p) | |
695 | { | |
696 | int depth = 0; | |
697 | ||
698 | gdb_assert (*p == '('); | |
699 | ||
700 | while (*p) | |
701 | { | |
702 | if (*p == '(') | |
703 | ++depth; | |
704 | else if (*p == ')') | |
705 | { | |
706 | if (--depth == 0) | |
707 | { | |
708 | ++p; | |
709 | break; | |
710 | } | |
711 | } | |
712 | ++p; | |
713 | } | |
714 | ||
715 | return p; | |
716 | } | |
c00f8484 | 717 | |
c00f8484 | 718 | /* Keep important information used when looking up a name. This includes |
3d50dd94 JK |
719 | template parameters, overload information, and important keywords, including |
720 | the possible Java trailing type. */ | |
c00f8484 KS |
721 | |
722 | static char * | |
3d50dd94 | 723 | keep_name_info (char *p, int on_boundary) |
c00f8484 | 724 | { |
3d50dd94 JK |
725 | const char *quotes = get_gdb_completer_quote_characters (); |
726 | char *saved_p = p; | |
727 | int nest = 0; | |
c00f8484 | 728 | |
3d50dd94 JK |
729 | while (*p) |
730 | { | |
731 | if (strchr (quotes, *p)) | |
732 | break; | |
c00f8484 | 733 | |
3d50dd94 JK |
734 | if (*p == ',' && !nest) |
735 | break; | |
c00f8484 | 736 | |
3d50dd94 JK |
737 | if (on_boundary && !nest) |
738 | { | |
739 | const char *const words[] = { "if", "thread", "task" }; | |
740 | int wordi; | |
c00f8484 | 741 | |
3d50dd94 JK |
742 | for (wordi = 0; wordi < ARRAY_SIZE (words); wordi++) |
743 | if (strncmp (p, words[wordi], strlen (words[wordi])) == 0 | |
744 | && is_linespec_boundary (p[strlen (words[wordi])])) | |
745 | break; | |
746 | if (wordi < ARRAY_SIZE (words)) | |
747 | break; | |
748 | } | |
c00f8484 | 749 | |
3d50dd94 JK |
750 | if (*p == '(' || *p == '<' || *p == '[') |
751 | nest++; | |
752 | else if ((*p == ')' || *p == '>' || *p == ']') && nest > 0) | |
753 | nest--; | |
c00f8484 | 754 | |
3d50dd94 JK |
755 | p++; |
756 | ||
757 | /* The ',' check could fail on "operator ,". */ | |
758 | p += cp_validate_operator (p); | |
759 | ||
760 | on_boundary = is_linespec_boundary (p[-1]); | |
f17170e5 | 761 | } |
c00f8484 | 762 | |
3d50dd94 JK |
763 | while (p > saved_p && is_linespec_boundary (p[-1])) |
764 | p--; | |
765 | ||
766 | return p; | |
c00f8484 KS |
767 | } |
768 | ||
50641945 | 769 | \f |
1777feb0 | 770 | /* The parser of linespec itself. */ |
50641945 FN |
771 | |
772 | /* Parse a string that specifies a line number. | |
773 | Pass the address of a char * variable; that variable will be | |
774 | advanced over the characters actually parsed. | |
775 | ||
776 | The string can be: | |
777 | ||
778 | LINENUM -- that line number in current file. PC returned is 0. | |
779 | FILE:LINENUM -- that line in that file. PC returned is 0. | |
780 | FUNCTION -- line number of openbrace of that function. | |
781 | PC returned is the start of the function. | |
0f5238ed | 782 | LABEL -- a label in the current scope |
50641945 FN |
783 | VARIABLE -- line number of definition of that variable. |
784 | PC returned is 0. | |
785 | FILE:FUNCTION -- likewise, but prefer functions in that file. | |
786 | *EXPR -- line in which address EXPR appears. | |
787 | ||
788 | This may all be followed by an "if EXPR", which we ignore. | |
789 | ||
790 | FUNCTION may be an undebuggable function found in minimal symbol table. | |
791 | ||
792 | If the argument FUNFIRSTLINE is nonzero, we want the first line | |
793 | of real code inside a function when a function is specified, and it is | |
794 | not OK to specify a variable or type to get its line number. | |
795 | ||
796 | DEFAULT_SYMTAB specifies the file to use if none is specified. | |
797 | It defaults to current_source_symtab. | |
798 | DEFAULT_LINE specifies the line number to use for relative | |
799 | line numbers (that start with signs). Defaults to current_source_line. | |
800 | If CANONICAL is non-NULL, store an array of strings containing the canonical | |
1777feb0 | 801 | line specs there if necessary. Currently overloaded member functions and |
50641945 | 802 | line numbers or static functions without a filename yield a canonical |
1777feb0 | 803 | line spec. The array and the line spec strings are allocated on the heap, |
50641945 FN |
804 | it is the callers responsibility to free them. |
805 | ||
806 | Note that it is possible to return zero for the symtab | |
807 | if no file is validly specified. Callers must check that. | |
58438ac1 | 808 | Also, the line number returned may be invalid. */ |
50641945 FN |
809 | |
810 | /* We allow single quotes in various places. This is a hideous | |
811 | kludge, which exists because the completer can't yet deal with the | |
812 | lack of single quotes. FIXME: write a linespec_completer which we | |
813 | can use as appropriate instead of make_symbol_completion_list. */ | |
814 | ||
815 | struct symtabs_and_lines | |
816 | decode_line_1 (char **argptr, int funfirstline, struct symtab *default_symtab, | |
58438ac1 | 817 | int default_line, struct linespec_result *canonical) |
50641945 | 818 | { |
f3c39e76 | 819 | char *p; |
614b3b14 | 820 | char *q; |
88d262ca DC |
821 | /* If a file name is specified, this is its symtab. */ |
822 | struct symtab *file_symtab = NULL; | |
50641945 | 823 | |
50641945 | 824 | char *copy; |
636b1a6d DC |
825 | /* This says whether or not something in *ARGPTR is quoted with |
826 | completer_quotes (i.e. with single quotes). */ | |
e325fb69 | 827 | int is_quoted; |
e5dd4106 | 828 | /* Is *ARGPTR enclosed in double quotes? */ |
50641945 | 829 | int is_quote_enclosed; |
d2630e69 | 830 | int is_objc_method = 0; |
50641945 | 831 | char *saved_arg = *argptr; |
791dfb64 DJ |
832 | /* If IS_QUOTED, the end of the quoted bit. */ |
833 | char *end_quote = NULL; | |
e8eb7bc5 KS |
834 | /* Is *ARGPTR enclosed in single quotes? */ |
835 | int is_squote_enclosed = 0; | |
0e0b460e KS |
836 | /* The "first half" of the linespec. */ |
837 | char *first_half; | |
50641945 | 838 | |
9ef07c8c TT |
839 | /* If we are parsing `function:label', this holds the symbol for the |
840 | function. */ | |
841 | struct symbol *function_symbol = NULL; | |
842 | /* If FUNCTION_SYMBOL is not NULL, then this is the exception that | |
843 | was thrown when trying to parse a filename. */ | |
844 | volatile struct gdb_exception file_exception; | |
845 | ||
50641945 FN |
846 | /* Defaults have defaults. */ |
847 | ||
44fe14ab DC |
848 | initialize_defaults (&default_symtab, &default_line); |
849 | ||
a04257e6 | 850 | /* See if arg is *PC. */ |
50641945 | 851 | |
e325fb69 MS |
852 | if (**argptr == '*') |
853 | return decode_indirect (argptr); | |
5f01dbc0 | 854 | |
e325fb69 MS |
855 | is_quoted = (strchr (get_gdb_completer_quote_characters (), |
856 | **argptr) != NULL); | |
50641945 | 857 | |
791dfb64 | 858 | if (is_quoted) |
e8eb7bc5 KS |
859 | { |
860 | end_quote = skip_quoted (*argptr); | |
861 | if (*end_quote == '\0') | |
862 | is_squote_enclosed = 1; | |
863 | } | |
50641945 | 864 | |
0960f083 DC |
865 | /* Check to see if it's a multipart linespec (with colons or |
866 | periods). */ | |
50641945 | 867 | |
17763fd9 EZ |
868 | /* Locate the end of the first half of the linespec. |
869 | After the call, for instance, if the argptr string is "foo.c:123" | |
870 | p will point at "123". If there is only one part, like "foo", p | |
1777feb0 MS |
871 | will point to "". If this is a C++ name, like "A::B::foo", p will |
872 | point to "::B::foo". Argptr is not changed by this call. */ | |
50641945 | 873 | |
0e0b460e | 874 | first_half = p = locate_first_half (argptr, &is_quote_enclosed); |
50641945 | 875 | |
e8eb7bc5 KS |
876 | /* First things first: if ARGPTR starts with a filename, get its |
877 | symtab and strip the filename from ARGPTR. */ | |
878 | TRY_CATCH (file_exception, RETURN_MASK_ERROR) | |
879 | { | |
880 | file_symtab = symtab_from_filename (argptr, p, is_quote_enclosed); | |
881 | } | |
882 | ||
883 | if (file_exception.reason >= 0) | |
884 | { | |
885 | /* Check for single quotes on the non-filename part. */ | |
886 | is_quoted = (**argptr | |
887 | && strchr (get_gdb_completer_quote_characters (), | |
888 | **argptr) != NULL); | |
889 | if (is_quoted) | |
890 | end_quote = skip_quoted (*argptr); | |
891 | ||
892 | /* Locate the next "half" of the linespec. */ | |
893 | first_half = p = locate_first_half (argptr, &is_quote_enclosed); | |
894 | } | |
895 | ||
d2630e69 AF |
896 | /* Check if this is an Objective-C method (anything that starts with |
897 | a '+' or '-' and a '['). */ | |
889f28e2 | 898 | if (is_objc_method_format (p)) |
94af9270 | 899 | is_objc_method = 1; |
d2630e69 AF |
900 | |
901 | /* Check if the symbol could be an Objective-C selector. */ | |
902 | ||
903 | { | |
904 | struct symtabs_and_lines values; | |
e0881a8e | 905 | |
e8eb7bc5 | 906 | values = decode_objc (argptr, funfirstline, file_symtab, |
d2630e69 AF |
907 | canonical, saved_arg); |
908 | if (values.sals != NULL) | |
909 | return values; | |
910 | } | |
911 | ||
0960f083 | 912 | /* Does it look like there actually were two parts? */ |
50641945 | 913 | |
791dfb64 | 914 | if (p[0] == ':' || p[0] == '.') |
50641945 | 915 | { |
17763fd9 EZ |
916 | /* Is it a C++ or Java compound data structure? |
917 | The check on p[1] == ':' is capturing the case of "::", | |
1777feb0 | 918 | since p[0]==':' was checked above. |
17763fd9 EZ |
919 | Note that the call to decode_compound does everything |
920 | for us, including the lookup on the symbol table, so we | |
1777feb0 | 921 | can return now. */ |
17763fd9 | 922 | |
50641945 | 923 | if (p[0] == '.' || p[1] == ':') |
791dfb64 | 924 | { |
94af9270 | 925 | struct symtabs_and_lines values; |
dcf9f4ab JK |
926 | volatile struct gdb_exception ex; |
927 | char *saved_argptr = *argptr; | |
94af9270 KS |
928 | |
929 | if (is_quote_enclosed) | |
930 | ++saved_arg; | |
dcf9f4ab | 931 | |
2f741504 JK |
932 | /* Initialize it just to avoid a GCC false warning. */ |
933 | memset (&values, 0, sizeof (values)); | |
934 | ||
dcf9f4ab JK |
935 | TRY_CATCH (ex, RETURN_MASK_ERROR) |
936 | { | |
937 | values = decode_compound (argptr, funfirstline, canonical, | |
938 | file_symtab, saved_arg, p); | |
939 | } | |
e8eb7bc5 | 940 | if ((is_quoted || is_squote_enclosed) && **argptr == '\'') |
94af9270 | 941 | *argptr = *argptr + 1; |
50641945 | 942 | |
dcf9f4ab JK |
943 | if (ex.reason >= 0) |
944 | return values; | |
50641945 | 945 | |
dcf9f4ab JK |
946 | if (ex.error != NOT_FOUND_ERROR) |
947 | throw_exception (ex); | |
948 | ||
949 | *argptr = saved_argptr; | |
950 | } | |
951 | else | |
50641945 | 952 | { |
dcf9f4ab JK |
953 | /* If there was an exception looking up a specified filename earlier, |
954 | then check whether we were really given `function:label'. */ | |
955 | if (file_exception.reason < 0) | |
956 | { | |
957 | function_symbol = find_function_symbol (argptr, p, | |
958 | is_quote_enclosed); | |
959 | /* If we did not find a function, re-throw the original | |
960 | exception. */ | |
961 | if (!function_symbol) | |
962 | throw_exception (file_exception); | |
963 | } | |
964 | ||
965 | /* Check for single quotes on the non-filename part. */ | |
966 | if (!is_quoted) | |
967 | { | |
968 | is_quoted = (**argptr | |
969 | && strchr (get_gdb_completer_quote_characters (), | |
970 | **argptr) != NULL); | |
971 | if (is_quoted) | |
972 | end_quote = skip_quoted (*argptr); | |
973 | } | |
50641945 | 974 | } |
50641945 | 975 | } |
50641945 | 976 | |
bc882aa9 | 977 | /* file_symtab is specified file's symtab, or 0 if no file specified. |
9ef07c8c TT |
978 | If we are parsing `function:symbol', then FUNCTION_SYMBOL is the |
979 | function before the `:'. | |
50641945 FN |
980 | arg no longer contains the file name. */ |
981 | ||
0e0b460e KS |
982 | /* If the filename was quoted, we must re-check the quotation. */ |
983 | ||
984 | if (end_quote == first_half && *end_quote!= '\0') | |
985 | { | |
986 | is_quoted = (**argptr | |
987 | && strchr (get_gdb_completer_quote_characters (), | |
988 | **argptr) != NULL); | |
989 | if (is_quoted) | |
990 | end_quote = skip_quoted (*argptr); | |
991 | } | |
992 | ||
a04257e6 | 993 | /* Check whether arg is all digits (and sign). */ |
50641945 FN |
994 | |
995 | q = *argptr; | |
996 | if (*q == '-' || *q == '+') | |
997 | q++; | |
998 | while (*q >= '0' && *q <= '9') | |
999 | q++; | |
1000 | ||
9ef07c8c TT |
1001 | if (q != *argptr && (*q == 0 || *q == ' ' || *q == '\t' || *q == ',') |
1002 | && function_symbol == NULL) | |
84fba31b DC |
1003 | /* We found a token consisting of all digits -- at least one digit. */ |
1004 | return decode_all_digits (argptr, default_symtab, default_line, | |
88d262ca | 1005 | canonical, file_symtab, q); |
50641945 FN |
1006 | |
1007 | /* Arg token is not digits => try it as a variable name | |
1008 | Find the next token (everything up to end or next whitespace). */ | |
1009 | ||
a04257e6 DC |
1010 | if (**argptr == '$') /* May be a convenience variable. */ |
1011 | /* One or two $ chars possible. */ | |
1012 | p = skip_quoted (*argptr + (((*argptr)[1] == '$') ? 2 : 1)); | |
e8eb7bc5 | 1013 | else if (is_quoted || is_squote_enclosed) |
50641945 | 1014 | { |
791dfb64 | 1015 | p = end_quote; |
50641945 | 1016 | if (p[-1] != '\'') |
8a3fe4f8 | 1017 | error (_("Unmatched single quote.")); |
50641945 | 1018 | } |
d2630e69 AF |
1019 | else if (is_objc_method) |
1020 | { | |
1777feb0 | 1021 | /* allow word separators in method names for Obj-C. */ |
d2630e69 AF |
1022 | p = skip_quoted_chars (*argptr, NULL, ""); |
1023 | } | |
50641945 FN |
1024 | else |
1025 | { | |
1026 | p = skip_quoted (*argptr); | |
1027 | } | |
1028 | ||
c00f8484 | 1029 | /* Keep any important naming information. */ |
3d50dd94 | 1030 | p = keep_name_info (p, p == saved_arg || is_linespec_boundary (p[-1])); |
94af9270 | 1031 | |
50641945 FN |
1032 | copy = (char *) alloca (p - *argptr + 1); |
1033 | memcpy (copy, *argptr, p - *argptr); | |
1034 | copy[p - *argptr] = '\0'; | |
1035 | if (p != *argptr | |
1036 | && copy[0] | |
1037 | && copy[0] == copy[p - *argptr - 1] | |
c5f0f3d0 | 1038 | && strchr (get_gdb_completer_quote_characters (), copy[0]) != NULL) |
50641945 FN |
1039 | { |
1040 | copy[p - *argptr - 1] = '\0'; | |
1041 | copy++; | |
1042 | } | |
e8eb7bc5 | 1043 | else if (is_quoted || is_squote_enclosed) |
791dfb64 | 1044 | copy[p - *argptr - 1] = '\0'; |
50641945 FN |
1045 | while (*p == ' ' || *p == '\t') |
1046 | p++; | |
1047 | *argptr = p; | |
1048 | ||
1049 | /* If it starts with $: may be a legitimate variable or routine name | |
1050 | (e.g. HP-UX millicode routines such as $$dyncall), or it may | |
a04257e6 | 1051 | be history value, or it may be a convenience variable. */ |
50641945 | 1052 | |
9ef07c8c | 1053 | if (*copy == '$' && function_symbol == NULL) |
14e91ac5 | 1054 | return decode_dollar (copy, funfirstline, default_symtab, |
88d262ca | 1055 | canonical, file_symtab); |
50641945 | 1056 | |
0f5238ed TT |
1057 | /* Try the token as a label, but only if no file was specified, |
1058 | because we can only really find labels in the current scope. */ | |
1059 | ||
1060 | if (!file_symtab) | |
1061 | { | |
1062 | struct symtabs_and_lines label_result; | |
9ef07c8c | 1063 | if (decode_label (function_symbol, copy, canonical, &label_result)) |
0f5238ed TT |
1064 | return label_result; |
1065 | } | |
1066 | ||
9ef07c8c | 1067 | if (function_symbol) |
58438ac1 | 1068 | throw_exception (file_exception); |
9ef07c8c | 1069 | |
50641945 FN |
1070 | /* Look up that token as a variable. |
1071 | If file specified, use that file's per-file block to start with. */ | |
1072 | ||
58438ac1 | 1073 | return decode_variable (copy, funfirstline, canonical, file_symtab); |
413dad4d | 1074 | } |
50641945 | 1075 | |
44fe14ab DC |
1076 | \f |
1077 | ||
614b3b14 DC |
1078 | /* Now, more helper functions for decode_line_1. Some conventions |
1079 | that these functions follow: | |
1080 | ||
1081 | Decode_line_1 typically passes along some of its arguments or local | |
1082 | variables to the subfunctions. It passes the variables by | |
1083 | reference if they are modified by the subfunction, and by value | |
1084 | otherwise. | |
1085 | ||
1086 | Some of the functions have side effects that don't arise from | |
1087 | variables that are passed by reference. In particular, if a | |
1088 | function is passed ARGPTR as an argument, it modifies what ARGPTR | |
1089 | points to; typically, it advances *ARGPTR past whatever substring | |
1090 | it has just looked at. (If it doesn't modify *ARGPTR, then the | |
94af9270 KS |
1091 | function gets passed *ARGPTR instead, which is then called ARG.) |
1092 | Also, functions that return a struct symtabs_and_lines may modify | |
1093 | CANONICAL, as in the description of decode_line_1. | |
614b3b14 DC |
1094 | |
1095 | If a function returns a struct symtabs_and_lines, then that struct | |
1096 | will immediately make its way up the call chain to be returned by | |
1097 | decode_line_1. In particular, all of the functions decode_XXX | |
1098 | calculate the appropriate struct symtabs_and_lines, under the | |
1099 | assumption that their argument is of the form XXX. */ | |
44fe14ab DC |
1100 | |
1101 | /* First, some functions to initialize stuff at the beggining of the | |
1102 | function. */ | |
1103 | ||
1104 | static void | |
1105 | initialize_defaults (struct symtab **default_symtab, int *default_line) | |
1106 | { | |
1107 | if (*default_symtab == 0) | |
1108 | { | |
1109 | /* Use whatever we have for the default source line. We don't use | |
1110 | get_current_or_default_symtab_and_line as it can recurse and call | |
1777feb0 | 1111 | us back! */ |
44fe14ab DC |
1112 | struct symtab_and_line cursal = |
1113 | get_current_source_symtab_and_line (); | |
1114 | ||
1115 | *default_symtab = cursal.symtab; | |
1116 | *default_line = cursal.line; | |
1117 | } | |
1118 | } | |
1119 | ||
1120 | \f | |
1121 | ||
1122 | /* Decode arg of the form *PC. */ | |
1123 | ||
1124 | static struct symtabs_and_lines | |
1125 | decode_indirect (char **argptr) | |
1126 | { | |
1127 | struct symtabs_and_lines values; | |
1128 | CORE_ADDR pc; | |
1129 | ||
1130 | (*argptr)++; | |
63ffa6ee | 1131 | pc = value_as_address (parse_to_comma_and_eval (argptr)); |
44fe14ab DC |
1132 | |
1133 | values.sals = (struct symtab_and_line *) | |
1134 | xmalloc (sizeof (struct symtab_and_line)); | |
1135 | ||
1136 | values.nelts = 1; | |
1137 | values.sals[0] = find_pc_line (pc, 0); | |
1138 | values.sals[0].pc = pc; | |
1139 | values.sals[0].section = find_pc_overlay (pc); | |
ed0616c6 | 1140 | values.sals[0].explicit_pc = 1; |
44fe14ab DC |
1141 | |
1142 | return values; | |
1143 | } | |
413dad4d DC |
1144 | |
1145 | \f | |
1146 | ||
0960f083 DC |
1147 | /* Locate the first half of the linespec, ending in a colon, period, |
1148 | or whitespace. (More or less.) Also, check to see if *ARGPTR is | |
1149 | enclosed in double quotes; if so, set is_quote_enclosed, advance | |
17763fd9 EZ |
1150 | ARGPTR past that and zero out the trailing double quote. |
1151 | If ARGPTR is just a simple name like "main", p will point to "" | |
1152 | at the end. */ | |
0960f083 DC |
1153 | |
1154 | static char * | |
1155 | locate_first_half (char **argptr, int *is_quote_enclosed) | |
1156 | { | |
1157 | char *ii; | |
1158 | char *p, *p1; | |
1159 | int has_comma; | |
1160 | ||
1161 | /* Maybe we were called with a line range FILENAME:LINENUM,FILENAME:LINENUM | |
1162 | and we must isolate the first half. Outer layers will call again later | |
1163 | for the second half. | |
1164 | ||
1165 | Don't count commas that appear in argument lists of overloaded | |
1166 | functions, or in quoted strings. It's stupid to go to this much | |
1167 | trouble when the rest of the function is such an obvious roach hotel. */ | |
1168 | ii = find_toplevel_char (*argptr, ','); | |
1169 | has_comma = (ii != 0); | |
1170 | ||
a04257e6 | 1171 | /* Temporarily zap out second half to not confuse the code below. |
1777feb0 | 1172 | This is undone below. Do not change ii!! */ |
0960f083 DC |
1173 | if (has_comma) |
1174 | { | |
1175 | *ii = '\0'; | |
1176 | } | |
1177 | ||
a04257e6 DC |
1178 | /* Maybe arg is FILE : LINENUM or FILE : FUNCTION. May also be |
1179 | CLASS::MEMBER, or NAMESPACE::NAME. Look for ':', but ignore | |
1180 | inside of <>. */ | |
0960f083 DC |
1181 | |
1182 | p = *argptr; | |
1183 | if (p[0] == '"') | |
1184 | { | |
1185 | *is_quote_enclosed = 1; | |
1186 | (*argptr)++; | |
1187 | p++; | |
1188 | } | |
1189 | else | |
0e0b460e KS |
1190 | { |
1191 | *is_quote_enclosed = 0; | |
1192 | if (strchr (get_gdb_completer_quote_characters (), *p)) | |
1193 | { | |
1194 | ++(*argptr); | |
1195 | ++p; | |
1196 | } | |
1197 | } | |
731971ed KS |
1198 | |
1199 | ||
1200 | /* Check for a drive letter in the filename. This is done on all hosts | |
1201 | to capture cross-compilation environments. On Unixen, directory | |
1202 | separators are illegal in filenames, so if the user enters "e:/foo.c", | |
1203 | he is referring to a directory named "e:" and a source file named | |
1204 | "foo.c", and we still want to keep these two pieces together. */ | |
1205 | if (isalpha (p[0]) && p[1] == ':' && IS_DIR_SEPARATOR (p[2])) | |
1206 | p += 3; | |
1207 | ||
0960f083 DC |
1208 | for (; *p; p++) |
1209 | { | |
1210 | if (p[0] == '<') | |
1211 | { | |
1212 | char *temp_end = find_template_name_end (p); | |
e0881a8e | 1213 | |
0960f083 | 1214 | if (!temp_end) |
8a3fe4f8 | 1215 | error (_("malformed template specification in command")); |
0960f083 DC |
1216 | p = temp_end; |
1217 | } | |
c00f8484 KS |
1218 | |
1219 | if (p[0] == '(') | |
1220 | p = find_method_overload_end (p); | |
1221 | ||
d2630e69 | 1222 | /* Check for a colon and a plus or minus and a [ (which |
1777feb0 | 1223 | indicates an Objective-C method). */ |
889f28e2 | 1224 | if (is_objc_method_format (p)) |
d2630e69 AF |
1225 | { |
1226 | break; | |
1227 | } | |
a04257e6 | 1228 | /* Check for the end of the first half of the linespec. End of |
e8eb7bc5 KS |
1229 | line, a tab, a colon or a space. But if enclosed in double |
1230 | quotes we do not break on enclosed spaces. */ | |
0960f083 DC |
1231 | if (!*p |
1232 | || p[0] == '\t' | |
e8eb7bc5 | 1233 | || (p[0] == ':') |
0960f083 DC |
1234 | || ((p[0] == ' ') && !*is_quote_enclosed)) |
1235 | break; | |
a04257e6 | 1236 | if (p[0] == '.' && strchr (p, ':') == NULL) |
0960f083 | 1237 | { |
a04257e6 | 1238 | /* Java qualified method. Find the *last* '.', since the |
94af9270 KS |
1239 | others are package qualifiers. Stop at any open parenthesis |
1240 | which might provide overload information. */ | |
1241 | for (p1 = p; *p1 && *p1 != '('; p1++) | |
0960f083 DC |
1242 | { |
1243 | if (*p1 == '.') | |
1244 | p = p1; | |
1245 | } | |
1246 | break; | |
1247 | } | |
1248 | } | |
1249 | while (p[0] == ' ' || p[0] == '\t') | |
1250 | p++; | |
1251 | ||
a04257e6 | 1252 | /* If the closing double quote was left at the end, remove it. */ |
0960f083 DC |
1253 | if (*is_quote_enclosed) |
1254 | { | |
1255 | char *closing_quote = strchr (p - 1, '"'); | |
e0881a8e | 1256 | |
0960f083 DC |
1257 | if (closing_quote && closing_quote[1] == '\0') |
1258 | *closing_quote = '\0'; | |
1259 | } | |
1260 | ||
a04257e6 DC |
1261 | /* Now that we've safely parsed the first half, put back ',' so |
1262 | outer layers can see it. */ | |
0960f083 DC |
1263 | if (has_comma) |
1264 | *ii = ','; | |
1265 | ||
1266 | return p; | |
1267 | } | |
1268 | ||
1269 | \f | |
1270 | ||
d2630e69 AF |
1271 | /* Here's where we recognise an Objective-C Selector. An Objective C |
1272 | selector may be implemented by more than one class, therefore it | |
1273 | may represent more than one method/function. This gives us a | |
1274 | situation somewhat analogous to C++ overloading. If there's more | |
1275 | than one method that could represent the selector, then use some of | |
1276 | the existing C++ code to let the user choose one. */ | |
1277 | ||
1278 | struct symtabs_and_lines | |
1279 | decode_objc (char **argptr, int funfirstline, struct symtab *file_symtab, | |
7efd8fc2 | 1280 | struct linespec_result *canonical, char *saved_arg) |
d2630e69 AF |
1281 | { |
1282 | struct symtabs_and_lines values; | |
1283 | struct symbol **sym_arr = NULL; | |
1284 | struct symbol *sym = NULL; | |
d2630e69 | 1285 | struct block *block = NULL; |
15550d6b MK |
1286 | unsigned i1 = 0; |
1287 | unsigned i2 = 0; | |
d2630e69 AF |
1288 | |
1289 | values.sals = NULL; | |
1290 | values.nelts = 0; | |
1291 | ||
e8eb7bc5 KS |
1292 | find_imps (file_symtab, get_search_block (file_symtab), *argptr, |
1293 | NULL, &i1, &i2); | |
d2630e69 AF |
1294 | |
1295 | if (i1 > 0) | |
1296 | { | |
1777feb0 MS |
1297 | sym_arr = (struct symbol **) |
1298 | alloca ((i1 + 1) * sizeof (struct symbol *)); | |
46be51c4 | 1299 | sym_arr[i1] = NULL; |
d2630e69 | 1300 | |
5715d26e | 1301 | *argptr = find_imps (file_symtab, block, *argptr, sym_arr, &i1, &i2); |
d2630e69 AF |
1302 | } |
1303 | ||
1304 | /* i1 now represents the TOTAL number of matches found. | |
1305 | i2 represents how many HIGH-LEVEL (struct symbol) matches, | |
1306 | which will come first in the sym_arr array. Any low-level | |
1307 | (minimal_symbol) matches will follow those. */ | |
1308 | ||
1309 | if (i1 == 1) | |
1310 | { | |
1311 | if (i2 > 0) | |
1312 | { | |
1313 | /* Already a struct symbol. */ | |
1314 | sym = sym_arr[0]; | |
1315 | } | |
1316 | else | |
1317 | { | |
1318 | sym = find_pc_function (SYMBOL_VALUE_ADDRESS (sym_arr[0])); | |
3e43a32a MS |
1319 | if ((sym != NULL) && strcmp (SYMBOL_LINKAGE_NAME (sym_arr[0]), |
1320 | SYMBOL_LINKAGE_NAME (sym)) != 0) | |
d2630e69 | 1321 | { |
3e43a32a MS |
1322 | warning (_("debugging symbol \"%s\" does " |
1323 | "not match selector; ignoring"), | |
1324 | SYMBOL_LINKAGE_NAME (sym)); | |
d2630e69 AF |
1325 | sym = NULL; |
1326 | } | |
1327 | } | |
1328 | ||
3e43a32a MS |
1329 | values.sals = (struct symtab_and_line *) |
1330 | xmalloc (sizeof (struct symtab_and_line)); | |
d2630e69 AF |
1331 | values.nelts = 1; |
1332 | ||
1333 | if (sym && SYMBOL_CLASS (sym) == LOC_BLOCK) | |
1334 | { | |
1335 | /* Canonicalize this, so it remains resolved for dylib loads. */ | |
1336 | values.sals[0] = find_function_start_sal (sym, funfirstline); | |
3e43a32a MS |
1337 | build_canonical_line_spec (values.sals, |
1338 | SYMBOL_NATURAL_NAME (sym), canonical); | |
d2630e69 AF |
1339 | } |
1340 | else | |
1341 | { | |
69368a60 UW |
1342 | /* The only match was a non-debuggable symbol, which might point |
1343 | to a function descriptor; resolve it to the actual code address | |
1344 | instead. */ | |
1345 | struct minimal_symbol *msymbol = (struct minimal_symbol *)sym_arr[0]; | |
1346 | struct objfile *objfile = msymbol_objfile (msymbol); | |
1347 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
1348 | CORE_ADDR pc = SYMBOL_VALUE_ADDRESS (msymbol); | |
1349 | ||
1350 | pc = gdbarch_convert_from_func_ptr_addr (gdbarch, pc, | |
1351 | ¤t_target); | |
1352 | ||
1353 | init_sal (&values.sals[0]); | |
1354 | values.sals[0].pc = pc; | |
d2630e69 AF |
1355 | } |
1356 | return values; | |
1357 | } | |
1358 | ||
1359 | if (i1 > 1) | |
1360 | { | |
1777feb0 | 1361 | /* More than one match. The user must choose one or more. */ |
d2630e69 AF |
1362 | return decode_line_2 (sym_arr, i2, funfirstline, canonical); |
1363 | } | |
1364 | ||
1365 | return values; | |
1366 | } | |
1367 | ||
614b3b14 | 1368 | /* This handles C++ and Java compound data structures. P should point |
17763fd9 EZ |
1369 | at the first component separator, i.e. double-colon or period. As |
1370 | an example, on entrance to this function we could have ARGPTR | |
1371 | pointing to "AAA::inA::fun" and P pointing to "::inA::fun". */ | |
614b3b14 DC |
1372 | |
1373 | static struct symtabs_and_lines | |
7efd8fc2 | 1374 | decode_compound (char **argptr, int funfirstline, |
e8eb7bc5 | 1375 | struct linespec_result *canonical, struct symtab *file_symtab, |
58438ac1 | 1376 | char *the_real_saved_arg, char *p) |
614b3b14 DC |
1377 | { |
1378 | struct symtabs_and_lines values; | |
3a93a0c2 | 1379 | char *p2, *name, *canon; |
614b3b14 DC |
1380 | char *saved_arg2 = *argptr; |
1381 | char *temp_end; | |
1382 | struct symbol *sym; | |
614b3b14 DC |
1383 | char *copy; |
1384 | struct symbol *sym_class; | |
614b3b14 | 1385 | struct type *t; |
c00f8484 | 1386 | char *saved_arg; |
3a93a0c2 | 1387 | struct cleanup *cleanup; |
c00f8484 KS |
1388 | |
1389 | /* If the user specified any completer quote characters in the input, | |
1390 | strip them. They are superfluous. */ | |
1391 | saved_arg = alloca (strlen (the_real_saved_arg) + 1); | |
1392 | { | |
1393 | char *dst = saved_arg; | |
1394 | char *src = the_real_saved_arg; | |
1395 | char *quotes = get_gdb_completer_quote_characters (); | |
1396 | while (*src != '\0') | |
1397 | { | |
1398 | if (strchr (quotes, *src) == NULL) | |
1399 | *dst++ = *src; | |
1400 | ++src; | |
1401 | } | |
1402 | *dst = '\0'; | |
1403 | } | |
614b3b14 | 1404 | |
17763fd9 EZ |
1405 | /* First check for "global" namespace specification, of the form |
1406 | "::foo". If found, skip over the colons and jump to normal | |
1407 | symbol processing. I.e. the whole line specification starts with | |
1777feb0 | 1408 | "::" (note the condition that *argptr == p). */ |
614b3b14 DC |
1409 | if (p[0] == ':' |
1410 | && ((*argptr == p) || (p[-1] == ' ') || (p[-1] == '\t'))) | |
1411 | saved_arg2 += 2; | |
1412 | ||
87b3ede8 DC |
1413 | /* Given our example "AAA::inA::fun", we have two cases to consider: |
1414 | ||
1415 | 1) AAA::inA is the name of a class. In that case, presumably it | |
1416 | has a method called "fun"; we then look up that method using | |
1417 | find_method. | |
1418 | ||
1419 | 2) AAA::inA isn't the name of a class. In that case, either the | |
c00f8484 KS |
1420 | user made a typo, AAA::inA is the name of a namespace, or it is |
1421 | the name of a minimal symbol. | |
1422 | We just look up AAA::inA::fun with lookup_symbol. If that fails, | |
1423 | try lookup_minimal_symbol. | |
87b3ede8 DC |
1424 | |
1425 | Thus, our first task is to find everything before the last set of | |
1426 | double-colons and figure out if it's the name of a class. So we | |
1427 | first loop through all of the double-colons. */ | |
614b3b14 | 1428 | |
a04257e6 | 1429 | p2 = p; /* Save for restart. */ |
17763fd9 | 1430 | |
1777feb0 | 1431 | /* This is very messy. Following the example above we have now the |
17763fd9 EZ |
1432 | following pointers: |
1433 | p -> "::inA::fun" | |
1434 | argptr -> "AAA::inA::fun | |
1435 | saved_arg -> "AAA::inA::fun | |
1436 | saved_arg2 -> "AAA::inA::fun | |
1777feb0 | 1437 | p2 -> "::inA::fun". */ |
17763fd9 EZ |
1438 | |
1439 | /* In the loop below, with these strings, we'll make 2 passes, each | |
1777feb0 | 1440 | is marked in comments. */ |
17763fd9 | 1441 | |
614b3b14 DC |
1442 | while (1) |
1443 | { | |
c00f8484 KS |
1444 | static char *break_characters = " \t("; |
1445 | ||
a04257e6 | 1446 | /* Move pointer up to next possible class/namespace token. */ |
17763fd9 | 1447 | |
a04257e6 | 1448 | p = p2 + 1; /* Restart with old value +1. */ |
17763fd9 EZ |
1449 | |
1450 | /* PASS1: at this point p2->"::inA::fun", so p->":inA::fun", | |
1451 | i.e. if there is a double-colon, p will now point to the | |
1777feb0 | 1452 | second colon. */ |
87b3ede8 | 1453 | /* PASS2: p2->"::fun", p->":fun" */ |
17763fd9 | 1454 | |
a04257e6 | 1455 | /* Move pointer ahead to next double-colon. */ |
c00f8484 KS |
1456 | while (*p |
1457 | && strchr (break_characters, *p) == NULL | |
1458 | && strchr (get_gdb_completer_quote_characters (), *p) == NULL) | |
614b3b14 | 1459 | { |
12907978 KS |
1460 | if (current_language->la_language == language_cplus) |
1461 | p += cp_validate_operator (p); | |
1462 | ||
614b3b14 DC |
1463 | if (p[0] == '<') |
1464 | { | |
1465 | temp_end = find_template_name_end (p); | |
1466 | if (!temp_end) | |
8a3fe4f8 | 1467 | error (_("malformed template specification in command")); |
614b3b14 DC |
1468 | p = temp_end; |
1469 | } | |
17763fd9 EZ |
1470 | /* Note that, since, at the start of this loop, p would be |
1471 | pointing to the second colon in a double-colon, we only | |
1472 | satisfy the condition below if there is another | |
1777feb0 MS |
1473 | double-colon to the right (after). I.e. there is another |
1474 | component that can be a class or a namespace. I.e, if at | |
17763fd9 EZ |
1475 | the beginning of this loop (PASS1), we had |
1476 | p->":inA::fun", we'll trigger this when p has been | |
1477 | advanced to point to "::fun". */ | |
1777feb0 | 1478 | /* PASS2: we will not trigger this. */ |
614b3b14 | 1479 | else if ((p[0] == ':') && (p[1] == ':')) |
a04257e6 | 1480 | break; /* Found double-colon. */ |
614b3b14 | 1481 | else |
c00f8484 KS |
1482 | { |
1483 | /* PASS2: We'll keep getting here, until P points to one of the | |
1484 | break characters, at which point we exit this loop. */ | |
2b1dbab0 KS |
1485 | if (*p) |
1486 | { | |
1487 | if (p[1] == '(' | |
1488 | && strncmp (&p[1], CP_ANONYMOUS_NAMESPACE_STR, | |
1489 | CP_ANONYMOUS_NAMESPACE_LEN) == 0) | |
1490 | p += CP_ANONYMOUS_NAMESPACE_LEN; | |
1491 | else if (strchr (break_characters, *p) == NULL) | |
1492 | ++p; | |
1493 | } | |
c00f8484 | 1494 | } |
614b3b14 DC |
1495 | } |
1496 | ||
1497 | if (*p != ':') | |
17763fd9 EZ |
1498 | break; /* Out of the while (1). This would happen |
1499 | for instance if we have looked up | |
1500 | unsuccessfully all the components of the | |
1777feb0 | 1501 | string, and p->""(PASS2). */ |
17763fd9 | 1502 | |
c00f8484 | 1503 | /* We get here if p points to one of the break characters or "" (i.e., |
1777feb0 | 1504 | string ended). */ |
17763fd9 EZ |
1505 | /* Save restart for next time around. */ |
1506 | p2 = p; | |
1507 | /* Restore argptr as it was on entry to this function. */ | |
1508 | *argptr = saved_arg2; | |
87b3ede8 DC |
1509 | /* PASS1: at this point p->"::fun" argptr->"AAA::inA::fun", |
1510 | p2->"::fun". */ | |
17763fd9 EZ |
1511 | |
1512 | /* All ready for next pass through the loop. */ | |
614b3b14 DC |
1513 | } /* while (1) */ |
1514 | ||
87b3ede8 | 1515 | |
1777feb0 | 1516 | /* Start of lookup in the symbol tables. */ |
87b3ede8 DC |
1517 | |
1518 | /* Lookup in the symbol table the substring between argptr and | |
1777feb0 | 1519 | p. Note, this call changes the value of argptr. */ |
87b3ede8 DC |
1520 | /* Before the call, argptr->"AAA::inA::fun", |
1521 | p->"", p2->"::fun". After the call: argptr->"fun", p, p2 | |
1522 | unchanged. */ | |
e8eb7bc5 | 1523 | sym_class = lookup_prefix_sym (argptr, p2, file_symtab); |
87b3ede8 DC |
1524 | |
1525 | /* If sym_class has been found, and if "AAA::inA" is a class, then | |
1526 | we're in case 1 above. So we look up "fun" as a method of that | |
1527 | class. */ | |
1528 | if (sym_class && | |
1529 | (t = check_typedef (SYMBOL_TYPE (sym_class)), | |
1530 | (TYPE_CODE (t) == TYPE_CODE_STRUCT | |
1531 | || TYPE_CODE (t) == TYPE_CODE_UNION))) | |
1532 | { | |
1533 | /* Arg token is not digits => try it as a function name. | |
1534 | Find the next token (everything up to end or next | |
1535 | blank). */ | |
1536 | if (**argptr | |
1537 | && strchr (get_gdb_completer_quote_characters (), | |
1538 | **argptr) != NULL) | |
1539 | { | |
1540 | p = skip_quoted (*argptr); | |
1541 | *argptr = *argptr + 1; | |
1542 | } | |
1543 | else | |
1544 | { | |
1545 | /* At this point argptr->"fun". */ | |
94af9270 | 1546 | char *a; |
e0881a8e | 1547 | |
87b3ede8 | 1548 | p = *argptr; |
94af9270 KS |
1549 | while (*p && *p != ' ' && *p != '\t' && *p != ',' && *p != ':' |
1550 | && *p != '(') | |
87b3ede8 DC |
1551 | p++; |
1552 | /* At this point p->"". String ended. */ | |
12907978 KS |
1553 | /* Nope, C++ operators could have spaces in them |
1554 | ("foo::operator <" or "foo::operator delete []"). | |
1555 | I apologize, this is a bit hacky... */ | |
1556 | if (current_language->la_language == language_cplus | |
1557 | && *p == ' ' && p - 8 - *argptr + 1 > 0) | |
1558 | { | |
1559 | /* The above loop has already swallowed "operator". */ | |
1560 | p += cp_validate_operator (p - 8) - 8; | |
1561 | } | |
94af9270 | 1562 | |
c00f8484 | 1563 | /* Keep any important naming information. */ |
3d50dd94 | 1564 | p = keep_name_info (p, 1); |
87b3ede8 DC |
1565 | } |
1566 | ||
1567 | /* Allocate our own copy of the substring between argptr and | |
1777feb0 | 1568 | p. */ |
87b3ede8 DC |
1569 | copy = (char *) alloca (p - *argptr + 1); |
1570 | memcpy (copy, *argptr, p - *argptr); | |
1571 | copy[p - *argptr] = '\0'; | |
1572 | if (p != *argptr | |
1573 | && copy[p - *argptr - 1] | |
1574 | && strchr (get_gdb_completer_quote_characters (), | |
1575 | copy[p - *argptr - 1]) != NULL) | |
1576 | copy[p - *argptr - 1] = '\0'; | |
1577 | ||
1777feb0 | 1578 | /* At this point copy->"fun", p->"". */ |
87b3ede8 DC |
1579 | |
1580 | /* No line number may be specified. */ | |
1581 | while (*p == ' ' || *p == '\t') | |
1582 | p++; | |
1583 | *argptr = p; | |
1584 | /* At this point arptr->"". */ | |
1585 | ||
1777feb0 | 1586 | /* Look for copy as a method of sym_class. */ |
87b3ede8 DC |
1587 | /* At this point copy->"fun", sym_class is "AAA:inA", |
1588 | saved_arg->"AAA::inA::fun". This concludes the scanning of | |
1589 | the string for possible components matches. If we find it | |
1777feb0 | 1590 | here, we return. If not, and we are at the and of the string, |
87b3ede8 DC |
1591 | we'll lookup the whole string in the symbol tables. */ |
1592 | ||
3d50dd94 JK |
1593 | return find_method (funfirstline, canonical, saved_arg, copy, t, |
1594 | sym_class, file_symtab); | |
1777feb0 | 1595 | } /* End if symbol found. */ |
87b3ede8 DC |
1596 | |
1597 | ||
1598 | /* We couldn't find a class, so we're in case 2 above. We check the | |
1599 | entire name as a symbol instead. */ | |
1600 | ||
3d50dd94 | 1601 | p = keep_name_info (p, 1); |
c00f8484 | 1602 | |
614b3b14 DC |
1603 | copy = (char *) alloca (p - saved_arg2 + 1); |
1604 | memcpy (copy, saved_arg2, p - saved_arg2); | |
a04257e6 DC |
1605 | /* Note: if is_quoted should be true, we snuff out quote here |
1606 | anyway. */ | |
614b3b14 | 1607 | copy[p - saved_arg2] = '\000'; |
a04257e6 | 1608 | /* Set argptr to skip over the name. */ |
614b3b14 | 1609 | *argptr = (*p == '\'') ? p + 1 : p; |
17763fd9 | 1610 | |
1777feb0 | 1611 | /* Look up entire name. */ |
3a93a0c2 KS |
1612 | name = copy; |
1613 | ||
1614 | cleanup = make_cleanup (null_cleanup, NULL); | |
1615 | canon = cp_canonicalize_string_no_typedefs (copy); | |
1616 | if (canon != NULL) | |
1617 | { | |
1618 | name = canon; | |
1619 | make_cleanup (xfree, name); | |
1620 | } | |
1621 | ||
1622 | sym = lookup_symbol (name, get_selected_block (0), VAR_DOMAIN, 0); | |
1623 | do_cleanups (cleanup); | |
614b3b14 | 1624 | if (sym) |
9ef07c8c | 1625 | return symbol_found (funfirstline, canonical, copy, sym, NULL, NULL); |
c00f8484 KS |
1626 | else |
1627 | { | |
1628 | struct minimal_symbol *msym; | |
1629 | ||
1630 | /* Couldn't find any interpretation as classes/namespaces. As a last | |
1631 | resort, try the minimal symbol tables. */ | |
1632 | msym = lookup_minimal_symbol (copy, NULL, NULL); | |
1633 | if (msym != NULL) | |
1634 | return minsym_found (funfirstline, msym); | |
1635 | } | |
614b3b14 | 1636 | |
c00f8484 | 1637 | /* Couldn't find a minimal symbol, either, so give up. */ |
c00f8484 | 1638 | cplusplus_error (the_real_saved_arg, |
3e43a32a MS |
1639 | "Can't find member of namespace, " |
1640 | "class, struct, or union named \"%s\"\n", | |
614b3b14 DC |
1641 | copy); |
1642 | } | |
1643 | ||
93d91629 DC |
1644 | /* Next come some helper functions for decode_compound. */ |
1645 | ||
1646 | /* Return the symbol corresponding to the substring of *ARGPTR ending | |
1647 | at P, allowing whitespace. Also, advance *ARGPTR past the symbol | |
1648 | name in question, the compound object separator ("::" or "."), and | |
17763fd9 EZ |
1649 | whitespace. Note that *ARGPTR is changed whether or not the |
1650 | lookup_symbol call finds anything (i.e we return NULL). As an | |
1651 | example, say ARGPTR is "AAA::inA::fun" and P is "::inA::fun". */ | |
93d91629 DC |
1652 | |
1653 | static struct symbol * | |
e8eb7bc5 | 1654 | lookup_prefix_sym (char **argptr, char *p, struct symtab *file_symtab) |
93d91629 DC |
1655 | { |
1656 | char *p1; | |
1657 | char *copy; | |
1e5a1abc | 1658 | struct symbol *sym; |
93d91629 DC |
1659 | |
1660 | /* Extract the class name. */ | |
1661 | p1 = p; | |
1662 | while (p != *argptr && p[-1] == ' ') | |
1663 | --p; | |
1664 | copy = (char *) alloca (p - *argptr + 1); | |
1665 | memcpy (copy, *argptr, p - *argptr); | |
1666 | copy[p - *argptr] = 0; | |
1667 | ||
17763fd9 | 1668 | /* Discard the class name from the argptr. */ |
93d91629 DC |
1669 | p = p1 + (p1[0] == ':' ? 2 : 1); |
1670 | while (*p == ' ' || *p == '\t') | |
1671 | p++; | |
1672 | *argptr = p; | |
1673 | ||
17763fd9 | 1674 | /* At this point p1->"::inA::fun", p->"inA::fun" copy->"AAA", |
1777feb0 | 1675 | argptr->"inA::fun". */ |
17763fd9 | 1676 | |
e8eb7bc5 | 1677 | sym = lookup_symbol (copy, get_search_block (file_symtab), STRUCT_DOMAIN, 0); |
1e5a1abc KS |
1678 | if (sym == NULL) |
1679 | { | |
1680 | /* Typedefs are in VAR_DOMAIN so the above symbol lookup will | |
1681 | fail when the user attempts to lookup a method of a class | |
1682 | via a typedef'd name (NOT via the class's name, which is already | |
1683 | handled in symbol_matches_domain). So try the lookup again | |
1684 | using VAR_DOMAIN (where typedefs live) and double-check that we | |
1685 | found a struct/class type. */ | |
1686 | struct symbol *s = lookup_symbol (copy, 0, VAR_DOMAIN, 0); | |
e0881a8e | 1687 | |
1e5a1abc KS |
1688 | if (s != NULL) |
1689 | { | |
1690 | struct type *t = SYMBOL_TYPE (s); | |
e0881a8e | 1691 | |
1e5a1abc KS |
1692 | CHECK_TYPEDEF (t); |
1693 | if (TYPE_CODE (t) == TYPE_CODE_STRUCT) | |
1694 | return s; | |
1695 | } | |
1696 | } | |
1697 | ||
1698 | return sym; | |
93d91629 DC |
1699 | } |
1700 | ||
4224873a DC |
1701 | /* This finds the method COPY in the class whose type is T and whose |
1702 | symbol is SYM_CLASS. */ | |
1703 | ||
1704 | static struct symtabs_and_lines | |
7efd8fc2 TT |
1705 | find_method (int funfirstline, struct linespec_result *canonical, |
1706 | char *saved_arg, | |
e8eb7bc5 KS |
1707 | char *copy, struct type *t, struct symbol *sym_class, |
1708 | struct symtab *file_symtab) | |
4224873a DC |
1709 | { |
1710 | struct symtabs_and_lines values; | |
46be51c4 | 1711 | struct symbol *sym = NULL; |
78a11fb4 | 1712 | int i1; /* Counter for the symbol array. */ |
4224873a DC |
1713 | struct symbol **sym_arr = alloca (total_number_of_methods (t) |
1714 | * sizeof (struct symbol *)); | |
1715 | ||
78a11fb4 DC |
1716 | /* Find all methods with a matching name, and put them in |
1717 | sym_arr. */ | |
4224873a | 1718 | |
e8eb7bc5 KS |
1719 | i1 = find_methods (t, copy, SYMBOL_LANGUAGE (sym_class), sym_arr, |
1720 | file_symtab); | |
4224873a | 1721 | |
418c7cf7 JK |
1722 | /* If we were given a specific overload instance in COPY, defer the field |
1723 | acceptance till the strcmp_iw verification below, even if we found just | |
1724 | a single field with that name. */ | |
1725 | if (i1 == 1 && strchr (copy, '(') == NULL) | |
4224873a DC |
1726 | { |
1727 | /* There is exactly one field with that name. */ | |
1728 | sym = sym_arr[0]; | |
1729 | ||
1730 | if (sym && SYMBOL_CLASS (sym) == LOC_BLOCK) | |
1731 | { | |
1732 | values.sals = (struct symtab_and_line *) | |
1733 | xmalloc (sizeof (struct symtab_and_line)); | |
1734 | values.nelts = 1; | |
1735 | values.sals[0] = find_function_start_sal (sym, | |
1736 | funfirstline); | |
1737 | } | |
1738 | else | |
1739 | { | |
15550d6b | 1740 | values.sals = NULL; |
4224873a DC |
1741 | values.nelts = 0; |
1742 | } | |
1743 | return values; | |
1744 | } | |
1745 | if (i1 > 0) | |
1746 | { | |
94af9270 KS |
1747 | /* If we were given a specific overload instance, use that |
1748 | (or error if no matches were found). Otherwise ask the user | |
1749 | which one to use. */ | |
c00f8484 | 1750 | if (strchr (copy, '(')) |
94af9270 KS |
1751 | { |
1752 | int i; | |
c00f8484 KS |
1753 | char *name; |
1754 | char *canon; | |
d03a3acf | 1755 | struct cleanup *cleanup; |
e0881a8e | 1756 | |
c00f8484 KS |
1757 | /* Construct the proper search name based on SYM_CLASS and COPY. |
1758 | SAVED_ARG may contain a valid name, but that name might not be | |
1759 | what is actually stored in the symbol table. For example, | |
1760 | if SAVED_ARG (and SYM_CLASS) were found via an import | |
1761 | ("using namespace" in C++), then the physname of | |
1762 | SYM_CLASS ("A::myclass") may not be the same as SAVED_ARG | |
1763 | ("myclass"). */ | |
1764 | name = xmalloc (strlen (SYMBOL_NATURAL_NAME (sym_class)) | |
1765 | + 2 /* "::" */ + strlen (copy) + 1); | |
1766 | strcpy (name, SYMBOL_NATURAL_NAME (sym_class)); | |
1767 | strcat (name, "::"); | |
1768 | strcat (name, copy); | |
3a93a0c2 | 1769 | canon = cp_canonicalize_string_no_typedefs (name); |
d03a3acf | 1770 | if (canon != NULL) |
94af9270 | 1771 | { |
c00f8484 | 1772 | xfree (name); |
d03a3acf | 1773 | name = canon; |
d03a3acf | 1774 | } |
c00f8484 | 1775 | cleanup = make_cleanup (xfree, name); |
94af9270 | 1776 | |
d03a3acf KS |
1777 | for (i = 0; i < i1; ++i) |
1778 | { | |
94af9270 KS |
1779 | if (strcmp_iw (name, SYMBOL_LINKAGE_NAME (sym_arr[i])) == 0) |
1780 | { | |
1781 | values.sals = (struct symtab_and_line *) | |
1782 | xmalloc (sizeof (struct symtab_and_line)); | |
1783 | values.nelts = 1; | |
1784 | values.sals[0] = find_function_start_sal (sym_arr[i], | |
1785 | funfirstline); | |
d03a3acf | 1786 | do_cleanups (cleanup); |
94af9270 KS |
1787 | return values; |
1788 | } | |
94af9270 KS |
1789 | } |
1790 | ||
dcf9f4ab JK |
1791 | cplusplus_error (saved_arg, _("the class `%s' does not have " |
1792 | "any method instance named %s"), | |
1793 | SYMBOL_PRINT_NAME (sym_class), copy); | |
94af9270 KS |
1794 | } |
1795 | ||
4224873a DC |
1796 | return decode_line_2 (sym_arr, i1, funfirstline, canonical); |
1797 | } | |
1798 | else | |
1799 | { | |
12907978 | 1800 | if (copy[0] == '~') |
4224873a DC |
1801 | cplusplus_error (saved_arg, |
1802 | "the class `%s' does not have destructor defined\n", | |
1803 | SYMBOL_PRINT_NAME (sym_class)); | |
1804 | else | |
1805 | cplusplus_error (saved_arg, | |
1806 | "the class %s does not have any method named %s\n", | |
12907978 | 1807 | SYMBOL_PRINT_NAME (sym_class), copy); |
4224873a DC |
1808 | } |
1809 | } | |
1810 | ||
f3c39e76 DC |
1811 | \f |
1812 | ||
1813 | /* Return the symtab associated to the filename given by the substring | |
58438ac1 | 1814 | of *ARGPTR ending at P, and advance ARGPTR past that filename. */ |
f3c39e76 DC |
1815 | |
1816 | static struct symtab * | |
58438ac1 | 1817 | symtab_from_filename (char **argptr, char *p, int is_quote_enclosed) |
f3c39e76 DC |
1818 | { |
1819 | char *p1; | |
1820 | char *copy; | |
94cd26f8 | 1821 | struct symtab *file_symtab; |
f3c39e76 DC |
1822 | |
1823 | p1 = p; | |
1824 | while (p != *argptr && p[-1] == ' ') | |
1825 | --p; | |
1826 | if ((*p == '"') && is_quote_enclosed) | |
1827 | --p; | |
1828 | copy = (char *) alloca (p - *argptr + 1); | |
1829 | memcpy (copy, *argptr, p - *argptr); | |
a04257e6 | 1830 | /* It may have the ending quote right after the file name. */ |
0e0b460e KS |
1831 | if ((is_quote_enclosed && copy[p - *argptr - 1] == '"') |
1832 | || copy[p - *argptr - 1] == '\'') | |
f3c39e76 DC |
1833 | copy[p - *argptr - 1] = 0; |
1834 | else | |
1835 | copy[p - *argptr] = 0; | |
1836 | ||
1837 | /* Find that file's data. */ | |
94cd26f8 DC |
1838 | file_symtab = lookup_symtab (copy); |
1839 | if (file_symtab == 0) | |
f3c39e76 | 1840 | { |
b96e2927 PA |
1841 | if (!have_full_symbols () && !have_partial_symbols ()) |
1842 | throw_error (NOT_FOUND_ERROR, | |
3e43a32a MS |
1843 | _("No symbol table is loaded. " |
1844 | "Use the \"file\" command.")); | |
109c3e39 | 1845 | throw_error (NOT_FOUND_ERROR, _("No source file named %s."), copy); |
f3c39e76 DC |
1846 | } |
1847 | ||
1848 | /* Discard the file name from the arg. */ | |
edb2aadf AR |
1849 | if (*p1 == '\0') |
1850 | return file_symtab; | |
f3c39e76 DC |
1851 | p = p1 + 1; |
1852 | while (*p == ' ' || *p == '\t') | |
1853 | p++; | |
1854 | *argptr = p; | |
1855 | ||
94cd26f8 | 1856 | return file_symtab; |
f3c39e76 DC |
1857 | } |
1858 | ||
9ef07c8c TT |
1859 | /* Look up a function symbol in *ARGPTR. If found, advance *ARGPTR |
1860 | and return the symbol. If not found, return NULL. */ | |
1861 | ||
1862 | static struct symbol * | |
1863 | find_function_symbol (char **argptr, char *p, int is_quote_enclosed) | |
1864 | { | |
1865 | char *p1; | |
1866 | char *copy; | |
1867 | struct symbol *function_symbol; | |
1868 | ||
1869 | p1 = p; | |
1870 | while (p != *argptr && p[-1] == ' ') | |
1871 | --p; | |
1872 | if ((*p == '"') && is_quote_enclosed) | |
1873 | --p; | |
1874 | copy = (char *) alloca (p - *argptr + 1); | |
1875 | memcpy (copy, *argptr, p - *argptr); | |
1876 | /* It may have the ending quote right after the file name. */ | |
1877 | if ((is_quote_enclosed && copy[p - *argptr - 1] == '"') | |
1878 | || copy[p - *argptr - 1] == '\'') | |
1879 | copy[p - *argptr - 1] = 0; | |
1880 | else | |
1881 | copy[p - *argptr] = 0; | |
1882 | ||
1883 | function_symbol = lookup_symbol (copy, get_selected_block (0), | |
1884 | VAR_DOMAIN, 0); | |
1885 | if (!function_symbol || SYMBOL_CLASS (function_symbol) != LOC_BLOCK) | |
1886 | return NULL; | |
1887 | ||
1888 | /* Discard the file name from the arg. */ | |
1889 | p = p1 + 1; | |
1890 | while (*p == ' ' || *p == '\t') | |
1891 | p++; | |
1892 | *argptr = p; | |
1893 | ||
1894 | return function_symbol; | |
1895 | } | |
1896 | ||
84fba31b DC |
1897 | \f |
1898 | ||
1899 | /* This decodes a line where the argument is all digits (possibly | |
1900 | preceded by a sign). Q should point to the end of those digits; | |
1901 | the other arguments are as usual. */ | |
1902 | ||
1903 | static struct symtabs_and_lines | |
1904 | decode_all_digits (char **argptr, struct symtab *default_symtab, | |
7efd8fc2 | 1905 | int default_line, struct linespec_result *canonical, |
88d262ca | 1906 | struct symtab *file_symtab, char *q) |
84fba31b DC |
1907 | |
1908 | { | |
1909 | struct symtabs_and_lines values; | |
1910 | struct symtab_and_line val; | |
1911 | ||
1912 | enum sign | |
1913 | { | |
1914 | none, plus, minus | |
1915 | } | |
1916 | sign = none; | |
1917 | ||
1918 | /* We might need a canonical line spec if no file was specified. */ | |
46be51c4 | 1919 | int need_canonical = (file_symtab == NULL) ? 1 : 0; |
84fba31b DC |
1920 | |
1921 | init_sal (&val); | |
1922 | ||
6c95b8df PA |
1923 | val.pspace = current_program_space; |
1924 | ||
84fba31b DC |
1925 | /* This is where we need to make sure that we have good defaults. |
1926 | We must guarantee that this section of code is never executed | |
1927 | when we are called with just a function name, since | |
1928 | set_default_source_symtab_and_line uses | |
a04257e6 | 1929 | select_source_symtab that calls us with such an argument. */ |
84fba31b | 1930 | |
88d262ca | 1931 | if (file_symtab == 0 && default_symtab == 0) |
84fba31b | 1932 | { |
a04257e6 | 1933 | /* Make sure we have at least a default source file. */ |
84fba31b DC |
1934 | set_default_source_symtab_and_line (); |
1935 | initialize_defaults (&default_symtab, &default_line); | |
1936 | } | |
1937 | ||
1938 | if (**argptr == '+') | |
1939 | sign = plus, (*argptr)++; | |
1940 | else if (**argptr == '-') | |
1941 | sign = minus, (*argptr)++; | |
1942 | val.line = atoi (*argptr); | |
1943 | switch (sign) | |
1944 | { | |
1945 | case plus: | |
1946 | if (q == *argptr) | |
1947 | val.line = 5; | |
88d262ca | 1948 | if (file_symtab == 0) |
84fba31b DC |
1949 | val.line = default_line + val.line; |
1950 | break; | |
1951 | case minus: | |
1952 | if (q == *argptr) | |
1953 | val.line = 15; | |
88d262ca | 1954 | if (file_symtab == 0) |
84fba31b DC |
1955 | val.line = default_line - val.line; |
1956 | else | |
1957 | val.line = 1; | |
1958 | break; | |
1959 | case none: | |
1960 | break; /* No need to adjust val.line. */ | |
1961 | } | |
1962 | ||
1963 | while (*q == ' ' || *q == '\t') | |
1964 | q++; | |
1965 | *argptr = q; | |
88d262ca DC |
1966 | if (file_symtab == 0) |
1967 | file_symtab = default_symtab; | |
84fba31b DC |
1968 | |
1969 | /* It is possible that this source file has more than one symtab, | |
1970 | and that the new line number specification has moved us from the | |
88d262ca DC |
1971 | default (in file_symtab) to a new one. */ |
1972 | val.symtab = find_line_symtab (file_symtab, val.line, NULL, NULL); | |
84fba31b | 1973 | if (val.symtab == 0) |
88d262ca | 1974 | val.symtab = file_symtab; |
84fba31b | 1975 | |
6c95b8df | 1976 | val.pspace = SYMTAB_PSPACE (val.symtab); |
84fba31b DC |
1977 | val.pc = 0; |
1978 | values.sals = (struct symtab_and_line *) | |
1979 | xmalloc (sizeof (struct symtab_and_line)); | |
1980 | values.sals[0] = val; | |
1981 | values.nelts = 1; | |
1982 | if (need_canonical) | |
1983 | build_canonical_line_spec (values.sals, NULL, canonical); | |
ed0616c6 | 1984 | values.sals[0].explicit_line = 1; |
84fba31b DC |
1985 | return values; |
1986 | } | |
f3c39e76 | 1987 | |
614b3b14 DC |
1988 | \f |
1989 | ||
14e91ac5 DC |
1990 | /* Decode a linespec starting with a dollar sign. */ |
1991 | ||
1992 | static struct symtabs_and_lines | |
1993 | decode_dollar (char *copy, int funfirstline, struct symtab *default_symtab, | |
7efd8fc2 | 1994 | struct linespec_result *canonical, struct symtab *file_symtab) |
14e91ac5 | 1995 | { |
4fa62494 | 1996 | LONGEST valx; |
14e91ac5 DC |
1997 | int index = 0; |
1998 | int need_canonical = 0; | |
1999 | struct symtabs_and_lines values; | |
2000 | struct symtab_and_line val; | |
2001 | char *p; | |
2002 | struct symbol *sym; | |
14e91ac5 DC |
2003 | struct minimal_symbol *msymbol; |
2004 | ||
2005 | p = (copy[1] == '$') ? copy + 2 : copy + 1; | |
2006 | while (*p >= '0' && *p <= '9') | |
2007 | p++; | |
a04257e6 | 2008 | if (!*p) /* Reached end of token without hitting non-digit. */ |
14e91ac5 | 2009 | { |
a04257e6 | 2010 | /* We have a value history reference. */ |
4fa62494 | 2011 | struct value *val_history; |
e0881a8e | 2012 | |
14e91ac5 | 2013 | sscanf ((copy[1] == '$') ? copy + 2 : copy + 1, "%d", &index); |
4fa62494 UW |
2014 | val_history = access_value_history ((copy[1] == '$') ? -index : index); |
2015 | if (TYPE_CODE (value_type (val_history)) != TYPE_CODE_INT) | |
3e43a32a MS |
2016 | error (_("History values used in line " |
2017 | "specs must have integer values.")); | |
4fa62494 | 2018 | valx = value_as_long (val_history); |
14e91ac5 DC |
2019 | } |
2020 | else | |
2021 | { | |
2022 | /* Not all digits -- may be user variable/function or a | |
a04257e6 | 2023 | convenience variable. */ |
14e91ac5 | 2024 | |
a04257e6 | 2025 | /* Look up entire name as a symbol first. */ |
2570f2b7 | 2026 | sym = lookup_symbol (copy, 0, VAR_DOMAIN, 0); |
46be51c4 | 2027 | file_symtab = (struct symtab *) NULL; |
14e91ac5 DC |
2028 | need_canonical = 1; |
2029 | /* Symbol was found --> jump to normal symbol processing. */ | |
2030 | if (sym) | |
9ef07c8c | 2031 | return symbol_found (funfirstline, canonical, copy, sym, NULL, NULL); |
14e91ac5 | 2032 | |
a04257e6 | 2033 | /* If symbol was not found, look in minimal symbol tables. */ |
14e91ac5 | 2034 | msymbol = lookup_minimal_symbol (copy, NULL, NULL); |
a04257e6 | 2035 | /* Min symbol was found --> jump to minsym processing. */ |
14e91ac5 DC |
2036 | if (msymbol) |
2037 | return minsym_found (funfirstline, msymbol); | |
2038 | ||
a04257e6 | 2039 | /* Not a user variable or function -- must be convenience variable. */ |
4fa62494 | 2040 | if (!get_internalvar_integer (lookup_internalvar (copy + 1), &valx)) |
3e43a32a MS |
2041 | error (_("Convenience variables used in line " |
2042 | "specs must have integer values.")); | |
14e91ac5 DC |
2043 | } |
2044 | ||
2045 | init_sal (&val); | |
2046 | ||
a04257e6 | 2047 | /* Either history value or convenience value from above, in valx. */ |
88d262ca | 2048 | val.symtab = file_symtab ? file_symtab : default_symtab; |
4fa62494 | 2049 | val.line = valx; |
14e91ac5 | 2050 | val.pc = 0; |
6c95b8df | 2051 | val.pspace = current_program_space; |
14e91ac5 DC |
2052 | |
2053 | values.sals = (struct symtab_and_line *) xmalloc (sizeof val); | |
2054 | values.sals[0] = val; | |
2055 | values.nelts = 1; | |
2056 | ||
2057 | if (need_canonical) | |
2058 | build_canonical_line_spec (values.sals, NULL, canonical); | |
2059 | ||
2060 | return values; | |
2061 | } | |
2062 | ||
bca02a8a DC |
2063 | \f |
2064 | ||
0f5238ed TT |
2065 | /* A helper for decode_line_1 that tries to find a label. The label |
2066 | is searched for in the current block. | |
9ef07c8c TT |
2067 | FUNCTION_SYMBOL is the enclosing function; or NULL if none |
2068 | specified. | |
0f5238ed TT |
2069 | COPY is the name of the label to find. |
2070 | CANONICAL is the same as the "canonical" argument to decode_line_1. | |
2071 | RESULT is a pointer to a symtabs_and_lines structure which will be | |
2072 | filled in on success. | |
2073 | This function returns 1 if a label was found, 0 otherwise. */ | |
2074 | ||
2075 | static int | |
9ef07c8c TT |
2076 | decode_label (struct symbol *function_symbol, char *copy, |
2077 | struct linespec_result *canonical, | |
7efd8fc2 | 2078 | struct symtabs_and_lines *result) |
0f5238ed TT |
2079 | { |
2080 | struct symbol *sym; | |
9ef07c8c TT |
2081 | struct block *block; |
2082 | ||
2083 | if (function_symbol) | |
2084 | block = SYMBOL_BLOCK_VALUE (function_symbol); | |
2085 | else | |
2086 | { | |
2087 | block = get_selected_block (0); | |
2088 | for (; | |
2089 | block && !BLOCK_FUNCTION (block); | |
2090 | block = BLOCK_SUPERBLOCK (block)) | |
2091 | ; | |
2092 | if (!block) | |
2093 | return 0; | |
2094 | function_symbol = BLOCK_FUNCTION (block); | |
2095 | } | |
0f5238ed | 2096 | |
9ef07c8c | 2097 | sym = lookup_symbol (copy, block, LABEL_DOMAIN, 0); |
0f5238ed TT |
2098 | |
2099 | if (sym != NULL) | |
9ef07c8c | 2100 | *result = symbol_found (0, canonical, copy, sym, NULL, function_symbol); |
0f5238ed TT |
2101 | |
2102 | return sym != NULL; | |
2103 | } | |
2104 | ||
88d262ca | 2105 | /* Decode a linespec that's a variable. If FILE_SYMTAB is non-NULL, |
58438ac1 | 2106 | look in that symtab's static variables first. */ |
bca02a8a DC |
2107 | |
2108 | static struct symtabs_and_lines | |
7efd8fc2 TT |
2109 | decode_variable (char *copy, int funfirstline, |
2110 | struct linespec_result *canonical, | |
58438ac1 | 2111 | struct symtab *file_symtab) |
bca02a8a | 2112 | { |
3a93a0c2 | 2113 | char *name, *canon; |
bca02a8a | 2114 | struct symbol *sym; |
3a93a0c2 | 2115 | struct cleanup *cleanup; |
bca02a8a DC |
2116 | struct minimal_symbol *msymbol; |
2117 | ||
3a93a0c2 KS |
2118 | name = copy; |
2119 | cleanup = make_cleanup (null_cleanup, NULL); | |
2120 | canon = cp_canonicalize_string_no_typedefs (copy); | |
2121 | if (canon != NULL) | |
2122 | { | |
2123 | name = canon; | |
2124 | make_cleanup (xfree, name); | |
2125 | } | |
2126 | ||
2127 | sym = lookup_symbol (name, get_search_block (file_symtab), VAR_DOMAIN, 0); | |
bca02a8a DC |
2128 | |
2129 | if (sym != NULL) | |
3a93a0c2 KS |
2130 | { |
2131 | do_cleanups (cleanup); | |
2132 | return symbol_found (funfirstline, canonical, copy, sym, | |
2133 | file_symtab, NULL); | |
2134 | } | |
bca02a8a | 2135 | |
3a93a0c2 KS |
2136 | msymbol = lookup_minimal_symbol (name, NULL, NULL); |
2137 | do_cleanups (cleanup); | |
bca02a8a DC |
2138 | |
2139 | if (msymbol != NULL) | |
2140 | return minsym_found (funfirstline, msymbol); | |
2141 | ||
b96e2927 PA |
2142 | if (!have_full_symbols () |
2143 | && !have_partial_symbols () | |
2144 | && !have_minimal_symbols ()) | |
2145 | throw_error (NOT_FOUND_ERROR, | |
2146 | _("No symbol table is loaded. Use the \"file\" command.")); | |
109c3e39 | 2147 | throw_error (NOT_FOUND_ERROR, _("Function \"%s\" not defined."), copy); |
bca02a8a DC |
2148 | } |
2149 | ||
2150 | ||
14e91ac5 DC |
2151 | \f |
2152 | ||
413dad4d DC |
2153 | /* Now come some functions that are called from multiple places within |
2154 | decode_line_1. */ | |
2155 | ||
2156 | /* We've found a symbol SYM to associate with our linespec; build a | |
2157 | corresponding struct symtabs_and_lines. */ | |
2158 | ||
2159 | static struct symtabs_and_lines | |
7efd8fc2 | 2160 | symbol_found (int funfirstline, struct linespec_result *canonical, char *copy, |
9ef07c8c TT |
2161 | struct symbol *sym, struct symtab *file_symtab, |
2162 | struct symbol *function_symbol) | |
413dad4d DC |
2163 | { |
2164 | struct symtabs_and_lines values; | |
2165 | ||
2166 | if (SYMBOL_CLASS (sym) == LOC_BLOCK) | |
50641945 | 2167 | { |
1777feb0 | 2168 | /* Arg is the name of a function. */ |
50641945 FN |
2169 | values.sals = (struct symtab_and_line *) |
2170 | xmalloc (sizeof (struct symtab_and_line)); | |
413dad4d DC |
2171 | values.sals[0] = find_function_start_sal (sym, funfirstline); |
2172 | values.nelts = 1; | |
2173 | ||
2174 | /* Don't use the SYMBOL_LINE; if used at all it points to | |
2175 | the line containing the parameters or thereabouts, not | |
2176 | the first line of code. */ | |
2177 | ||
2178 | /* We might need a canonical line spec if it is a static | |
2179 | function. */ | |
88d262ca | 2180 | if (file_symtab == 0) |
50641945 | 2181 | { |
2570f2b7 | 2182 | struct blockvector *bv = BLOCKVECTOR (SYMBOL_SYMTAB (sym)); |
413dad4d | 2183 | struct block *b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); |
e0881a8e | 2184 | |
94af9270 | 2185 | if (lookup_block_symbol (b, copy, VAR_DOMAIN) != NULL) |
413dad4d | 2186 | build_canonical_line_spec (values.sals, copy, canonical); |
50641945 | 2187 | } |
50641945 FN |
2188 | return values; |
2189 | } | |
413dad4d DC |
2190 | else |
2191 | { | |
62853458 | 2192 | if (SYMBOL_CLASS (sym) == LOC_LABEL && SYMBOL_VALUE_ADDRESS (sym) != 0) |
413dad4d DC |
2193 | { |
2194 | /* We know its line number. */ | |
2195 | values.sals = (struct symtab_and_line *) | |
2196 | xmalloc (sizeof (struct symtab_and_line)); | |
2197 | values.nelts = 1; | |
9ef07c8c | 2198 | init_sal (&values.sals[0]); |
2570f2b7 | 2199 | values.sals[0].symtab = SYMBOL_SYMTAB (sym); |
413dad4d | 2200 | values.sals[0].line = SYMBOL_LINE (sym); |
9ef07c8c | 2201 | values.sals[0].pc = SYMBOL_VALUE_ADDRESS (sym); |
0f5238ed | 2202 | values.sals[0].pspace = SYMTAB_PSPACE (SYMBOL_SYMTAB (sym)); |
9ef07c8c TT |
2203 | values.sals[0].explicit_pc = 1; |
2204 | ||
2205 | if (canonical) | |
2206 | { | |
2207 | canonical->special_display = 1; | |
2208 | canonical->canonical = xmalloc (sizeof (char *)); | |
2209 | canonical->canonical[0] | |
2210 | = xstrprintf ("%s:%s", | |
2211 | SYMBOL_NATURAL_NAME (function_symbol), | |
2212 | SYMBOL_NATURAL_NAME (sym)); | |
2213 | } | |
2214 | ||
413dad4d DC |
2215 | return values; |
2216 | } | |
62853458 | 2217 | else if (funfirstline) |
dcf9f4ab JK |
2218 | { |
2219 | /* NOT_FOUND_ERROR is not correct but it ensures COPY will be | |
2220 | searched also as a minimal symbol. */ | |
2221 | ||
2222 | throw_error (NOT_FOUND_ERROR, _("\"%s\" is not a function"), copy); | |
2223 | } | |
62853458 TT |
2224 | else if (SYMBOL_LINE (sym) != 0) |
2225 | { | |
2226 | /* We know its line number. */ | |
2227 | values.sals = (struct symtab_and_line *) | |
2228 | xmalloc (sizeof (struct symtab_and_line)); | |
2229 | values.nelts = 1; | |
2230 | memset (&values.sals[0], 0, sizeof (values.sals[0])); | |
2231 | values.sals[0].symtab = SYMBOL_SYMTAB (sym); | |
2232 | values.sals[0].line = SYMBOL_LINE (sym); | |
2233 | values.sals[0].pspace = SYMTAB_PSPACE (SYMBOL_SYMTAB (sym)); | |
2234 | return values; | |
2235 | } | |
413dad4d DC |
2236 | else |
2237 | /* This can happen if it is compiled with a compiler which doesn't | |
2238 | put out line numbers for variables. */ | |
2239 | /* FIXME: Shouldn't we just set .line and .symtab to zero | |
2240 | and return? For example, "info line foo" could print | |
2241 | the address. */ | |
8a3fe4f8 | 2242 | error (_("Line number not known for symbol \"%s\""), copy); |
413dad4d DC |
2243 | } |
2244 | } | |
50641945 | 2245 | |
413dad4d DC |
2246 | /* We've found a minimal symbol MSYMBOL to associate with our |
2247 | linespec; build a corresponding struct symtabs_and_lines. */ | |
50641945 | 2248 | |
413dad4d DC |
2249 | static struct symtabs_and_lines |
2250 | minsym_found (int funfirstline, struct minimal_symbol *msymbol) | |
2251 | { | |
bccdca4a UW |
2252 | struct objfile *objfile = msymbol_objfile (msymbol); |
2253 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
413dad4d | 2254 | struct symtabs_and_lines values; |
bccdca4a | 2255 | CORE_ADDR pc; |
413dad4d DC |
2256 | |
2257 | values.sals = (struct symtab_and_line *) | |
2258 | xmalloc (sizeof (struct symtab_and_line)); | |
2259 | values.sals[0] = find_pc_sect_line (SYMBOL_VALUE_ADDRESS (msymbol), | |
714835d5 UW |
2260 | (struct obj_section *) 0, 0); |
2261 | values.sals[0].section = SYMBOL_OBJ_SECTION (msymbol); | |
bccdca4a UW |
2262 | |
2263 | /* The minimal symbol might point to a function descriptor; | |
2264 | resolve it to the actual code address instead. */ | |
2265 | pc = gdbarch_convert_from_func_ptr_addr (gdbarch, | |
2266 | values.sals[0].pc, | |
2267 | ¤t_target); | |
2268 | if (pc != values.sals[0].pc) | |
2269 | values.sals[0] = find_pc_sect_line (pc, NULL, 0); | |
2270 | ||
413dad4d | 2271 | if (funfirstline) |
059acae7 | 2272 | skip_prologue_sal (&values.sals[0]); |
e48883f7 | 2273 | |
413dad4d DC |
2274 | values.nelts = 1; |
2275 | return values; | |
50641945 | 2276 | } |
7efd8fc2 TT |
2277 | |
2278 | void | |
2279 | init_linespec_result (struct linespec_result *lr) | |
2280 | { | |
2281 | memset (lr, 0, sizeof (*lr)); | |
2282 | } |