Commit | Line | Data |
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50641945 | 1 | /* Parser for linespec for the GNU debugger, GDB. |
05ff989b | 2 | |
6aba47ca | 3 | Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
0fb0cc75 | 4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, |
7b6bb8da | 5 | 2009, 2010, 2011 Free Software Foundation, Inc. |
50641945 FN |
6 | |
7 | This file is part of GDB. | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
50641945 FN |
12 | (at your option) any later version. |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
50641945 FN |
21 | |
22 | #include "defs.h" | |
23 | #include "symtab.h" | |
c5f0f3d0 FN |
24 | #include "frame.h" |
25 | #include "command.h" | |
50641945 FN |
26 | #include "symfile.h" |
27 | #include "objfiles.h" | |
0378c332 | 28 | #include "source.h" |
50641945 | 29 | #include "demangle.h" |
c5f0f3d0 FN |
30 | #include "value.h" |
31 | #include "completer.h" | |
015a42b4 | 32 | #include "cp-abi.h" |
12907978 | 33 | #include "cp-support.h" |
c38da1af | 34 | #include "parser-defs.h" |
fe898f56 | 35 | #include "block.h" |
d2630e69 | 36 | #include "objc-lang.h" |
b9362cc7 | 37 | #include "linespec.h" |
05ff989b | 38 | #include "exceptions.h" |
53c5240f | 39 | #include "language.h" |
dc67126b NR |
40 | #include "interps.h" |
41 | #include "mi/mi-cmds.h" | |
bccdca4a | 42 | #include "target.h" |
94af9270 | 43 | #include "arch-utils.h" |
c00f8484 KS |
44 | #include <ctype.h> |
45 | #include "cli/cli-utils.h" | |
50641945 | 46 | |
1777feb0 | 47 | /* We share this one with symtab.c, but it is not exported widely. */ |
50641945 FN |
48 | |
49 | extern char *operator_chars (char *, char **); | |
50 | ||
1777feb0 | 51 | /* Prototypes for local functions. */ |
50641945 | 52 | |
44fe14ab DC |
53 | static void initialize_defaults (struct symtab **default_symtab, |
54 | int *default_line); | |
55 | ||
56 | static struct symtabs_and_lines decode_indirect (char **argptr); | |
57 | ||
0960f083 DC |
58 | static char *locate_first_half (char **argptr, int *is_quote_enclosed); |
59 | ||
d2630e69 AF |
60 | static struct symtabs_and_lines decode_objc (char **argptr, |
61 | int funfirstline, | |
62 | struct symtab *file_symtab, | |
7efd8fc2 | 63 | struct linespec_result *canonical, |
d2630e69 AF |
64 | char *saved_arg); |
65 | ||
614b3b14 DC |
66 | static struct symtabs_and_lines decode_compound (char **argptr, |
67 | int funfirstline, | |
7efd8fc2 | 68 | struct linespec_result *canonical, |
614b3b14 | 69 | char *saved_arg, |
58438ac1 | 70 | char *p); |
614b3b14 | 71 | |
93d91629 DC |
72 | static struct symbol *lookup_prefix_sym (char **argptr, char *p); |
73 | ||
4224873a | 74 | static struct symtabs_and_lines find_method (int funfirstline, |
7efd8fc2 | 75 | struct linespec_result *canonical, |
4224873a DC |
76 | char *saved_arg, |
77 | char *copy, | |
78 | struct type *t, | |
58438ac1 | 79 | struct symbol *sym_class); |
4224873a | 80 | |
c25c4a8b JK |
81 | static void cplusplus_error (const char *name, const char *fmt, ...) |
82 | ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (2, 3); | |
50641945 FN |
83 | |
84 | static int total_number_of_methods (struct type *type); | |
85 | ||
53c5240f PA |
86 | static int find_methods (struct type *, char *, |
87 | enum language, struct symbol **); | |
50641945 | 88 | |
aee8d8ba | 89 | static int add_matching_methods (int method_counter, struct type *t, |
53c5240f | 90 | enum language language, |
aee8d8ba DC |
91 | struct symbol **sym_arr); |
92 | ||
93 | static int add_constructors (int method_counter, struct type *t, | |
53c5240f | 94 | enum language language, |
aee8d8ba DC |
95 | struct symbol **sym_arr); |
96 | ||
50641945 | 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 | ||
206 | /* Recursive helper function for decode_line_1. | |
207 | Look for methods named NAME in type T. | |
208 | Return number of matches. | |
209 | Put matches in SYM_ARR, which should have been allocated with | |
210 | a size of total_number_of_methods (T) * sizeof (struct symbol *). | |
211 | Note that this function is g++ specific. */ | |
212 | ||
213 | static int | |
53c5240f PA |
214 | find_methods (struct type *t, char *name, enum language language, |
215 | struct symbol **sym_arr) | |
50641945 FN |
216 | { |
217 | int i1 = 0; | |
218 | int ibase; | |
50641945 | 219 | char *class_name = type_name_no_tag (t); |
c00f8484 KS |
220 | struct cleanup *cleanup; |
221 | char *canon; | |
222 | ||
223 | /* NAME is typed by the user: it needs to be canonicalized before | |
224 | passing to lookup_symbol. */ | |
225 | canon = cp_canonicalize_string (name); | |
226 | if (canon != NULL) | |
227 | { | |
228 | name = canon; | |
229 | cleanup = make_cleanup (xfree, name); | |
230 | } | |
231 | else | |
232 | cleanup = make_cleanup (null_cleanup, NULL); | |
50641945 FN |
233 | |
234 | /* Ignore this class if it doesn't have a name. This is ugly, but | |
235 | unless we figure out how to get the physname without the name of | |
236 | the class, then the loop can't do any good. */ | |
237 | if (class_name | |
53c5240f | 238 | && (lookup_symbol_in_language (class_name, (struct block *) NULL, |
2570f2b7 | 239 | STRUCT_DOMAIN, language, (int *) NULL))) |
50641945 FN |
240 | { |
241 | int method_counter; | |
5c717440 | 242 | int name_len = strlen (name); |
50641945 | 243 | |
8bd1f2c6 | 244 | CHECK_TYPEDEF (t); |
50641945 FN |
245 | |
246 | /* Loop over each method name. At this level, all overloads of a name | |
247 | are counted as a single name. There is an inner loop which loops over | |
248 | each overload. */ | |
249 | ||
250 | for (method_counter = TYPE_NFN_FIELDS (t) - 1; | |
251 | method_counter >= 0; | |
252 | --method_counter) | |
253 | { | |
50641945 FN |
254 | char *method_name = TYPE_FN_FIELDLIST_NAME (t, method_counter); |
255 | char dem_opname[64]; | |
256 | ||
257 | if (strncmp (method_name, "__", 2) == 0 || | |
258 | strncmp (method_name, "op", 2) == 0 || | |
259 | strncmp (method_name, "type", 4) == 0) | |
260 | { | |
261 | if (cplus_demangle_opname (method_name, dem_opname, DMGL_ANSI)) | |
262 | method_name = dem_opname; | |
263 | else if (cplus_demangle_opname (method_name, dem_opname, 0)) | |
264 | method_name = dem_opname; | |
265 | } | |
266 | ||
13b57657 | 267 | if (strcmp_iw (name, method_name) == 0) |
50641945 | 268 | /* Find all the overloaded methods with that name. */ |
53c5240f | 269 | i1 += add_matching_methods (method_counter, t, language, |
aee8d8ba | 270 | sym_arr + i1); |
5c717440 DJ |
271 | else if (strncmp (class_name, name, name_len) == 0 |
272 | && (class_name[name_len] == '\0' | |
273 | || class_name[name_len] == '<')) | |
53c5240f | 274 | i1 += add_constructors (method_counter, t, language, |
aee8d8ba | 275 | sym_arr + i1); |
50641945 FN |
276 | } |
277 | } | |
278 | ||
279 | /* Only search baseclasses if there is no match yet, since names in | |
280 | derived classes override those in baseclasses. | |
281 | ||
282 | FIXME: The above is not true; it is only true of member functions | |
283 | if they have the same number of arguments (??? - section 13.1 of the | |
284 | ARM says the function members are not in the same scope but doesn't | |
285 | really spell out the rules in a way I understand. In any case, if | |
286 | the number of arguments differ this is a case in which we can overload | |
287 | rather than hiding without any problem, and gcc 2.4.5 does overload | |
288 | rather than hiding in this case). */ | |
289 | ||
290 | if (i1 == 0) | |
291 | for (ibase = 0; ibase < TYPE_N_BASECLASSES (t); ibase++) | |
53c5240f PA |
292 | i1 += find_methods (TYPE_BASECLASS (t, ibase), name, |
293 | language, sym_arr + i1); | |
50641945 | 294 | |
c00f8484 | 295 | do_cleanups (cleanup); |
50641945 FN |
296 | return i1; |
297 | } | |
298 | ||
aee8d8ba DC |
299 | /* Add the symbols associated to methods of the class whose type is T |
300 | and whose name matches the method indexed by METHOD_COUNTER in the | |
301 | array SYM_ARR. Return the number of methods added. */ | |
302 | ||
303 | static int | |
304 | add_matching_methods (int method_counter, struct type *t, | |
53c5240f | 305 | enum language language, struct symbol **sym_arr) |
aee8d8ba DC |
306 | { |
307 | int field_counter; | |
308 | int i1 = 0; | |
309 | ||
310 | for (field_counter = TYPE_FN_FIELDLIST_LENGTH (t, method_counter) - 1; | |
311 | field_counter >= 0; | |
312 | --field_counter) | |
313 | { | |
314 | struct fn_field *f; | |
315 | char *phys_name; | |
316 | ||
317 | f = TYPE_FN_FIELDLIST1 (t, method_counter); | |
318 | ||
319 | if (TYPE_FN_FIELD_STUB (f, field_counter)) | |
320 | { | |
321 | char *tmp_name; | |
322 | ||
323 | tmp_name = gdb_mangle_name (t, | |
324 | method_counter, | |
325 | field_counter); | |
326 | phys_name = alloca (strlen (tmp_name) + 1); | |
327 | strcpy (phys_name, tmp_name); | |
328 | xfree (tmp_name); | |
329 | } | |
330 | else | |
331 | phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter); | |
53c5240f | 332 | |
53c5240f | 333 | sym_arr[i1] = lookup_symbol_in_language (phys_name, |
aee8d8ba | 334 | NULL, VAR_DOMAIN, |
53c5240f | 335 | language, |
2570f2b7 | 336 | (int *) NULL); |
aee8d8ba DC |
337 | if (sym_arr[i1]) |
338 | i1++; | |
339 | else | |
340 | { | |
341 | /* This error message gets printed, but the method | |
1777feb0 | 342 | still seems to be found. |
aee8d8ba DC |
343 | fputs_filtered("(Cannot find method ", gdb_stdout); |
344 | fprintf_symbol_filtered (gdb_stdout, phys_name, | |
1777feb0 MS |
345 | language_cplus, |
346 | DMGL_PARAMS | DMGL_ANSI); | |
aee8d8ba DC |
347 | fputs_filtered(" - possibly inlined.)\n", gdb_stdout); |
348 | */ | |
349 | } | |
350 | } | |
351 | ||
352 | return i1; | |
353 | } | |
354 | ||
355 | /* Add the symbols associated to constructors of the class whose type | |
356 | is CLASS_TYPE and which are indexed by by METHOD_COUNTER to the | |
357 | array SYM_ARR. Return the number of methods added. */ | |
358 | ||
359 | static int | |
360 | add_constructors (int method_counter, struct type *t, | |
53c5240f | 361 | enum language language, struct symbol **sym_arr) |
aee8d8ba DC |
362 | { |
363 | int field_counter; | |
364 | int i1 = 0; | |
365 | ||
366 | /* For GCC 3.x and stabs, constructors and destructors | |
367 | have names like __base_ctor and __complete_dtor. | |
368 | Check the physname for now if we're looking for a | |
369 | constructor. */ | |
370 | for (field_counter | |
371 | = TYPE_FN_FIELDLIST_LENGTH (t, method_counter) - 1; | |
372 | field_counter >= 0; | |
373 | --field_counter) | |
374 | { | |
375 | struct fn_field *f; | |
376 | char *phys_name; | |
53c5240f | 377 | |
aee8d8ba DC |
378 | f = TYPE_FN_FIELDLIST1 (t, method_counter); |
379 | ||
380 | /* GCC 3.x will never produce stabs stub methods, so | |
381 | we don't need to handle this case. */ | |
382 | if (TYPE_FN_FIELD_STUB (f, field_counter)) | |
383 | continue; | |
384 | phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter); | |
385 | if (! is_constructor_name (phys_name)) | |
386 | continue; | |
387 | ||
388 | /* If this method is actually defined, include it in the | |
389 | list. */ | |
53c5240f | 390 | sym_arr[i1] = lookup_symbol_in_language (phys_name, |
aee8d8ba | 391 | NULL, VAR_DOMAIN, |
53c5240f | 392 | language, |
2570f2b7 | 393 | (int *) NULL); |
aee8d8ba DC |
394 | if (sym_arr[i1]) |
395 | i1++; | |
396 | } | |
397 | ||
398 | return i1; | |
399 | } | |
400 | ||
50641945 FN |
401 | /* Helper function for decode_line_1. |
402 | Build a canonical line spec in CANONICAL if it is non-NULL and if | |
403 | the SAL has a symtab. | |
404 | If SYMNAME is non-NULL the canonical line spec is `filename:symname'. | |
405 | If SYMNAME is NULL the line number from SAL is used and the canonical | |
406 | line spec is `filename:linenum'. */ | |
407 | ||
408 | static void | |
409 | build_canonical_line_spec (struct symtab_and_line *sal, char *symname, | |
7efd8fc2 | 410 | struct linespec_result *canonical) |
50641945 FN |
411 | { |
412 | char **canonical_arr; | |
413 | char *canonical_name; | |
414 | char *filename; | |
415 | struct symtab *s = sal->symtab; | |
416 | ||
417 | if (s == (struct symtab *) NULL | |
418 | || s->filename == (char *) NULL | |
7efd8fc2 | 419 | || canonical == NULL) |
50641945 FN |
420 | return; |
421 | ||
422 | canonical_arr = (char **) xmalloc (sizeof (char *)); | |
7efd8fc2 | 423 | canonical->canonical = canonical_arr; |
50641945 FN |
424 | |
425 | filename = s->filename; | |
426 | if (symname != NULL) | |
427 | { | |
428 | canonical_name = xmalloc (strlen (filename) + strlen (symname) + 2); | |
429 | sprintf (canonical_name, "%s:%s", filename, symname); | |
430 | } | |
431 | else | |
432 | { | |
433 | canonical_name = xmalloc (strlen (filename) + 30); | |
434 | sprintf (canonical_name, "%s:%d", filename, sal->line); | |
435 | } | |
436 | canonical_arr[0] = canonical_name; | |
437 | } | |
438 | ||
439 | ||
440 | ||
441 | /* Find an instance of the character C in the string S that is outside | |
442 | of all parenthesis pairs, single-quoted strings, and double-quoted | |
8120c9d5 EZ |
443 | strings. Also, ignore the char within a template name, like a ',' |
444 | within foo<int, int>. */ | |
445 | ||
50641945 FN |
446 | static char * |
447 | find_toplevel_char (char *s, char c) | |
448 | { | |
449 | int quoted = 0; /* zero if we're not in quotes; | |
450 | '"' if we're in a double-quoted string; | |
451 | '\'' if we're in a single-quoted string. */ | |
a04257e6 | 452 | int depth = 0; /* Number of unclosed parens we've seen. */ |
50641945 FN |
453 | char *scan; |
454 | ||
455 | for (scan = s; *scan; scan++) | |
456 | { | |
457 | if (quoted) | |
458 | { | |
459 | if (*scan == quoted) | |
460 | quoted = 0; | |
461 | else if (*scan == '\\' && *(scan + 1)) | |
462 | scan++; | |
463 | } | |
464 | else if (*scan == c && ! quoted && depth == 0) | |
465 | return scan; | |
466 | else if (*scan == '"' || *scan == '\'') | |
467 | quoted = *scan; | |
8120c9d5 | 468 | else if (*scan == '(' || *scan == '<') |
50641945 | 469 | depth++; |
8120c9d5 | 470 | else if ((*scan == ')' || *scan == '>') && depth > 0) |
50641945 FN |
471 | depth--; |
472 | } | |
473 | ||
474 | return 0; | |
475 | } | |
476 | ||
889f28e2 | 477 | /* Determines if the gives string corresponds to an Objective-C method |
1777feb0 | 478 | representation, such as -[Foo bar:] or +[Foo bar]. Objective-C symbols |
889f28e2 AF |
479 | are allowed to have spaces and parentheses in them. */ |
480 | ||
481 | static int | |
482 | is_objc_method_format (const char *s) | |
483 | { | |
484 | if (s == NULL || *s == '\0') | |
485 | return 0; | |
486 | /* Handle arguments with the format FILENAME:SYMBOL. */ | |
487 | if ((s[0] == ':') && (strchr ("+-", s[1]) != NULL) | |
488 | && (s[2] == '[') && strchr(s, ']')) | |
489 | return 1; | |
490 | /* Handle arguments that are just SYMBOL. */ | |
491 | else if ((strchr ("+-", s[0]) != NULL) && (s[1] == '[') && strchr(s, ']')) | |
492 | return 1; | |
493 | return 0; | |
494 | } | |
495 | ||
50641945 FN |
496 | /* Given a list of NELTS symbols in SYM_ARR, return a list of lines to |
497 | operate on (ask user if necessary). | |
498 | If CANONICAL is non-NULL return a corresponding array of mangled names | |
499 | as canonical line specs there. */ | |
500 | ||
501 | static struct symtabs_and_lines | |
502 | decode_line_2 (struct symbol *sym_arr[], int nelts, int funfirstline, | |
7efd8fc2 | 503 | struct linespec_result *canonical) |
50641945 FN |
504 | { |
505 | struct symtabs_and_lines values, return_values; | |
506 | char *args, *arg1; | |
507 | int i; | |
508 | char *prompt; | |
509 | char *symname; | |
510 | struct cleanup *old_chain; | |
511 | char **canonical_arr = (char **) NULL; | |
717d2f5a | 512 | const char *select_mode = multiple_symbols_select_mode (); |
50641945 | 513 | |
717d2f5a | 514 | if (select_mode == multiple_symbols_cancel) |
3e43a32a MS |
515 | error (_("canceled because the command is ambiguous\n" |
516 | "See set/show multiple-symbol.")); | |
717d2f5a | 517 | |
50641945 FN |
518 | values.sals = (struct symtab_and_line *) |
519 | alloca (nelts * sizeof (struct symtab_and_line)); | |
520 | return_values.sals = (struct symtab_and_line *) | |
521 | xmalloc (nelts * sizeof (struct symtab_and_line)); | |
b8c9b27d | 522 | old_chain = make_cleanup (xfree, return_values.sals); |
50641945 FN |
523 | |
524 | if (canonical) | |
525 | { | |
526 | canonical_arr = (char **) xmalloc (nelts * sizeof (char *)); | |
b8c9b27d | 527 | make_cleanup (xfree, canonical_arr); |
50641945 | 528 | memset (canonical_arr, 0, nelts * sizeof (char *)); |
7efd8fc2 | 529 | canonical->canonical = canonical_arr; |
50641945 FN |
530 | } |
531 | ||
532 | i = 0; | |
50641945 FN |
533 | while (i < nelts) |
534 | { | |
a04257e6 | 535 | init_sal (&return_values.sals[i]); /* Initialize to zeroes. */ |
fe39c653 | 536 | init_sal (&values.sals[i]); |
50641945 | 537 | if (sym_arr[i] && SYMBOL_CLASS (sym_arr[i]) == LOC_BLOCK) |
717d2f5a | 538 | values.sals[i] = find_function_start_sal (sym_arr[i], funfirstline); |
50641945 FN |
539 | i++; |
540 | } | |
541 | ||
717d2f5a JB |
542 | /* If select_mode is "all", then do not print the multiple-choice |
543 | menu and act as if the user had chosen choice "1" (all). */ | |
dc67126b NR |
544 | if (select_mode == multiple_symbols_all |
545 | || ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ()))) | |
717d2f5a JB |
546 | args = "1"; |
547 | else | |
50641945 | 548 | { |
717d2f5a JB |
549 | i = 0; |
550 | printf_unfiltered (_("[0] cancel\n[1] all\n")); | |
551 | while (i < nelts) | |
552 | { | |
553 | if (sym_arr[i] && SYMBOL_CLASS (sym_arr[i]) == LOC_BLOCK) | |
554 | { | |
555 | if (values.sals[i].symtab) | |
556 | printf_unfiltered ("[%d] %s at %s:%d\n", | |
557 | (i + 2), | |
558 | SYMBOL_PRINT_NAME (sym_arr[i]), | |
559 | values.sals[i].symtab->filename, | |
560 | values.sals[i].line); | |
561 | else | |
3e43a32a MS |
562 | printf_unfiltered (_("[%d] %s at ?FILE:%d [No symtab? " |
563 | "Probably broken debug info...]\n"), | |
717d2f5a JB |
564 | (i + 2), |
565 | SYMBOL_PRINT_NAME (sym_arr[i]), | |
566 | values.sals[i].line); | |
567 | ||
568 | } | |
569 | else | |
570 | printf_unfiltered (_("?HERE\n")); | |
571 | i++; | |
572 | } | |
573 | ||
574 | prompt = getenv ("PS2"); | |
575 | if (prompt == NULL) | |
576 | { | |
577 | prompt = "> "; | |
578 | } | |
579 | args = command_line_input (prompt, 0, "overload-choice"); | |
50641945 | 580 | } |
50641945 FN |
581 | |
582 | if (args == 0 || *args == 0) | |
e2e0b3e5 | 583 | error_no_arg (_("one or more choice numbers")); |
50641945 FN |
584 | |
585 | i = 0; | |
586 | while (*args) | |
587 | { | |
588 | int num; | |
589 | ||
590 | arg1 = args; | |
591 | while (*arg1 >= '0' && *arg1 <= '9') | |
592 | arg1++; | |
593 | if (*arg1 && *arg1 != ' ' && *arg1 != '\t') | |
8a3fe4f8 | 594 | error (_("Arguments must be choice numbers.")); |
50641945 FN |
595 | |
596 | num = atoi (args); | |
597 | ||
598 | if (num == 0) | |
8a3fe4f8 | 599 | error (_("canceled")); |
50641945 FN |
600 | else if (num == 1) |
601 | { | |
602 | if (canonical_arr) | |
603 | { | |
604 | for (i = 0; i < nelts; i++) | |
605 | { | |
606 | if (canonical_arr[i] == NULL) | |
607 | { | |
3567439c | 608 | symname = SYMBOL_LINKAGE_NAME (sym_arr[i]); |
1b36a34b | 609 | canonical_arr[i] = xstrdup (symname); |
50641945 FN |
610 | } |
611 | } | |
612 | } | |
613 | memcpy (return_values.sals, values.sals, | |
614 | (nelts * sizeof (struct symtab_and_line))); | |
615 | return_values.nelts = nelts; | |
616 | discard_cleanups (old_chain); | |
617 | return return_values; | |
618 | } | |
619 | ||
620 | if (num >= nelts + 2) | |
621 | { | |
a3f17187 | 622 | printf_unfiltered (_("No choice number %d.\n"), num); |
50641945 FN |
623 | } |
624 | else | |
625 | { | |
626 | num -= 2; | |
627 | if (values.sals[num].pc) | |
628 | { | |
629 | if (canonical_arr) | |
630 | { | |
3567439c | 631 | symname = SYMBOL_LINKAGE_NAME (sym_arr[num]); |
b8c9b27d | 632 | make_cleanup (xfree, symname); |
1b36a34b | 633 | canonical_arr[i] = xstrdup (symname); |
50641945 FN |
634 | } |
635 | return_values.sals[i++] = values.sals[num]; | |
636 | values.sals[num].pc = 0; | |
637 | } | |
638 | else | |
639 | { | |
3e43a32a MS |
640 | printf_unfiltered (_("duplicate request for %d ignored.\n"), |
641 | num); | |
50641945 FN |
642 | } |
643 | } | |
644 | ||
645 | args = arg1; | |
646 | while (*args == ' ' || *args == '\t') | |
647 | args++; | |
648 | } | |
649 | return_values.nelts = i; | |
650 | discard_cleanups (old_chain); | |
651 | return return_values; | |
652 | } | |
94af9270 KS |
653 | |
654 | /* A helper function for decode_line_1 and friends which skips P | |
655 | past any method overload information at the beginning of P, e.g., | |
656 | "(const struct foo *)". | |
657 | ||
658 | This function assumes that P has already been validated to contain | |
659 | overload information, and it will assert if *P != '('. */ | |
660 | static char * | |
661 | find_method_overload_end (char *p) | |
662 | { | |
663 | int depth = 0; | |
664 | ||
665 | gdb_assert (*p == '('); | |
666 | ||
667 | while (*p) | |
668 | { | |
669 | if (*p == '(') | |
670 | ++depth; | |
671 | else if (*p == ')') | |
672 | { | |
673 | if (--depth == 0) | |
674 | { | |
675 | ++p; | |
676 | break; | |
677 | } | |
678 | } | |
679 | ++p; | |
680 | } | |
681 | ||
682 | return p; | |
683 | } | |
c00f8484 KS |
684 | |
685 | /* Does P point to a sequence of characters which implies the end | |
686 | of a name? Terminals include "if" and "thread" clauses. */ | |
687 | ||
688 | static int | |
689 | name_end (char *p) | |
690 | { | |
691 | while (isspace (*p)) | |
692 | ++p; | |
693 | if (*p == 'i' && p[1] == 'f' | |
694 | && (isspace (p[2]) || p[2] == '\0' || p[2] == '(')) | |
695 | return 1; | |
696 | ||
697 | if (strncmp (p, "thread", 6) == 0 | |
698 | && (isspace (p[6]) || p[6] == '\0')) | |
699 | return 1; | |
700 | ||
701 | return 0; | |
702 | } | |
703 | ||
704 | /* Keep important information used when looking up a name. This includes | |
705 | template parameters, overload information, and important keywords. */ | |
706 | ||
707 | static char * | |
708 | keep_name_info (char *ptr) | |
709 | { | |
710 | char *p = ptr; | |
711 | char *start = ptr; | |
712 | ||
713 | /* Keep any template parameters. */ | |
714 | if (name_end (ptr)) | |
715 | return remove_trailing_whitespace (start, ptr); | |
716 | ||
717 | while (isspace (*p)) | |
718 | ++p; | |
719 | if (*p == '<') | |
720 | ptr = p = find_template_name_end (ptr); | |
721 | ||
722 | if (name_end (ptr)) | |
723 | return remove_trailing_whitespace (start, ptr); | |
724 | ||
725 | /* Keep method overload information. */ | |
726 | if (*p == '(') | |
727 | ptr = p = find_method_overload_end (p); | |
728 | ||
729 | if (name_end (ptr)) | |
730 | return remove_trailing_whitespace (start, ptr); | |
731 | ||
732 | /* Keep important keywords. */ | |
733 | while (isspace (*p)) | |
734 | ++p; | |
735 | if (strncmp (p, "const", 5) == 0 | |
736 | && (isspace (p[5]) || p[5] == '\0' | |
737 | || strchr (get_gdb_completer_quote_characters (), p[5]) != NULL)) | |
738 | ptr = p = p + 5; | |
739 | ||
740 | return remove_trailing_whitespace (start, ptr); | |
741 | } | |
742 | ||
50641945 | 743 | \f |
1777feb0 | 744 | /* The parser of linespec itself. */ |
50641945 FN |
745 | |
746 | /* Parse a string that specifies a line number. | |
747 | Pass the address of a char * variable; that variable will be | |
748 | advanced over the characters actually parsed. | |
749 | ||
750 | The string can be: | |
751 | ||
752 | LINENUM -- that line number in current file. PC returned is 0. | |
753 | FILE:LINENUM -- that line in that file. PC returned is 0. | |
754 | FUNCTION -- line number of openbrace of that function. | |
755 | PC returned is the start of the function. | |
0f5238ed | 756 | LABEL -- a label in the current scope |
50641945 FN |
757 | VARIABLE -- line number of definition of that variable. |
758 | PC returned is 0. | |
759 | FILE:FUNCTION -- likewise, but prefer functions in that file. | |
760 | *EXPR -- line in which address EXPR appears. | |
761 | ||
762 | This may all be followed by an "if EXPR", which we ignore. | |
763 | ||
764 | FUNCTION may be an undebuggable function found in minimal symbol table. | |
765 | ||
766 | If the argument FUNFIRSTLINE is nonzero, we want the first line | |
767 | of real code inside a function when a function is specified, and it is | |
768 | not OK to specify a variable or type to get its line number. | |
769 | ||
770 | DEFAULT_SYMTAB specifies the file to use if none is specified. | |
771 | It defaults to current_source_symtab. | |
772 | DEFAULT_LINE specifies the line number to use for relative | |
773 | line numbers (that start with signs). Defaults to current_source_line. | |
774 | If CANONICAL is non-NULL, store an array of strings containing the canonical | |
1777feb0 | 775 | line specs there if necessary. Currently overloaded member functions and |
50641945 | 776 | line numbers or static functions without a filename yield a canonical |
1777feb0 | 777 | line spec. The array and the line spec strings are allocated on the heap, |
50641945 FN |
778 | it is the callers responsibility to free them. |
779 | ||
780 | Note that it is possible to return zero for the symtab | |
781 | if no file is validly specified. Callers must check that. | |
58438ac1 | 782 | Also, the line number returned may be invalid. */ |
50641945 FN |
783 | |
784 | /* We allow single quotes in various places. This is a hideous | |
785 | kludge, which exists because the completer can't yet deal with the | |
786 | lack of single quotes. FIXME: write a linespec_completer which we | |
787 | can use as appropriate instead of make_symbol_completion_list. */ | |
788 | ||
789 | struct symtabs_and_lines | |
790 | decode_line_1 (char **argptr, int funfirstline, struct symtab *default_symtab, | |
58438ac1 | 791 | int default_line, struct linespec_result *canonical) |
50641945 | 792 | { |
f3c39e76 | 793 | char *p; |
614b3b14 | 794 | char *q; |
88d262ca DC |
795 | /* If a file name is specified, this is its symtab. */ |
796 | struct symtab *file_symtab = NULL; | |
50641945 | 797 | |
50641945 | 798 | char *copy; |
636b1a6d DC |
799 | /* This says whether or not something in *ARGPTR is quoted with |
800 | completer_quotes (i.e. with single quotes). */ | |
e325fb69 | 801 | int is_quoted; |
0e0b460e | 802 | /* Is *ARGPTR is enclosed in double quotes? */ |
50641945 | 803 | int is_quote_enclosed; |
d2630e69 | 804 | int is_objc_method = 0; |
50641945 | 805 | char *saved_arg = *argptr; |
791dfb64 DJ |
806 | /* If IS_QUOTED, the end of the quoted bit. */ |
807 | char *end_quote = NULL; | |
0e0b460e KS |
808 | /* The "first half" of the linespec. */ |
809 | char *first_half; | |
50641945 | 810 | |
9ef07c8c TT |
811 | /* If we are parsing `function:label', this holds the symbol for the |
812 | function. */ | |
813 | struct symbol *function_symbol = NULL; | |
814 | /* If FUNCTION_SYMBOL is not NULL, then this is the exception that | |
815 | was thrown when trying to parse a filename. */ | |
816 | volatile struct gdb_exception file_exception; | |
817 | ||
50641945 FN |
818 | /* Defaults have defaults. */ |
819 | ||
44fe14ab DC |
820 | initialize_defaults (&default_symtab, &default_line); |
821 | ||
a04257e6 | 822 | /* See if arg is *PC. */ |
50641945 | 823 | |
e325fb69 MS |
824 | if (**argptr == '*') |
825 | return decode_indirect (argptr); | |
5f01dbc0 | 826 | |
e325fb69 MS |
827 | is_quoted = (strchr (get_gdb_completer_quote_characters (), |
828 | **argptr) != NULL); | |
50641945 | 829 | |
791dfb64 DJ |
830 | if (is_quoted) |
831 | end_quote = skip_quoted (*argptr); | |
50641945 | 832 | |
0960f083 DC |
833 | /* Check to see if it's a multipart linespec (with colons or |
834 | periods). */ | |
50641945 | 835 | |
17763fd9 EZ |
836 | /* Locate the end of the first half of the linespec. |
837 | After the call, for instance, if the argptr string is "foo.c:123" | |
838 | p will point at "123". If there is only one part, like "foo", p | |
1777feb0 MS |
839 | will point to "". If this is a C++ name, like "A::B::foo", p will |
840 | point to "::B::foo". Argptr is not changed by this call. */ | |
50641945 | 841 | |
0e0b460e | 842 | first_half = p = locate_first_half (argptr, &is_quote_enclosed); |
50641945 | 843 | |
d2630e69 AF |
844 | /* Check if this is an Objective-C method (anything that starts with |
845 | a '+' or '-' and a '['). */ | |
889f28e2 | 846 | if (is_objc_method_format (p)) |
94af9270 | 847 | is_objc_method = 1; |
d2630e69 AF |
848 | |
849 | /* Check if the symbol could be an Objective-C selector. */ | |
850 | ||
851 | { | |
852 | struct symtabs_and_lines values; | |
e0881a8e | 853 | |
d2630e69 AF |
854 | values = decode_objc (argptr, funfirstline, NULL, |
855 | canonical, saved_arg); | |
856 | if (values.sals != NULL) | |
857 | return values; | |
858 | } | |
859 | ||
0960f083 | 860 | /* Does it look like there actually were two parts? */ |
50641945 | 861 | |
791dfb64 | 862 | if (p[0] == ':' || p[0] == '.') |
50641945 | 863 | { |
17763fd9 EZ |
864 | /* Is it a C++ or Java compound data structure? |
865 | The check on p[1] == ':' is capturing the case of "::", | |
1777feb0 | 866 | since p[0]==':' was checked above. |
17763fd9 EZ |
867 | Note that the call to decode_compound does everything |
868 | for us, including the lookup on the symbol table, so we | |
1777feb0 | 869 | can return now. */ |
17763fd9 | 870 | |
50641945 | 871 | if (p[0] == '.' || p[1] == ':') |
791dfb64 | 872 | { |
94af9270 KS |
873 | struct symtabs_and_lines values; |
874 | ||
875 | if (is_quote_enclosed) | |
876 | ++saved_arg; | |
877 | values = decode_compound (argptr, funfirstline, canonical, | |
58438ac1 | 878 | saved_arg, p); |
94af9270 KS |
879 | if (is_quoted && **argptr == '\'') |
880 | *argptr = *argptr + 1; | |
881 | return values; | |
791dfb64 | 882 | } |
50641945 | 883 | |
94af9270 KS |
884 | /* No, the first part is a filename; set file_symtab to be that file's |
885 | symtab. Also, move argptr past the filename. */ | |
50641945 | 886 | |
9ef07c8c TT |
887 | TRY_CATCH (file_exception, RETURN_MASK_ERROR) |
888 | { | |
58438ac1 | 889 | file_symtab = symtab_from_filename (argptr, p, is_quote_enclosed); |
9ef07c8c TT |
890 | } |
891 | /* If that failed, maybe we have `function:label'. */ | |
892 | if (file_exception.reason < 0) | |
893 | { | |
894 | function_symbol = find_function_symbol (argptr, p, is_quote_enclosed); | |
895 | /* If we did not find a function, re-throw the original | |
896 | exception. */ | |
897 | if (!function_symbol) | |
898 | throw_exception (file_exception); | |
9ef07c8c | 899 | } |
50641945 | 900 | |
94af9270 KS |
901 | /* Check for single quotes on the non-filename part. */ |
902 | if (!is_quoted) | |
50641945 | 903 | { |
94af9270 KS |
904 | is_quoted = (**argptr |
905 | && strchr (get_gdb_completer_quote_characters (), | |
906 | **argptr) != NULL); | |
907 | if (is_quoted) | |
908 | end_quote = skip_quoted (*argptr); | |
50641945 | 909 | } |
50641945 | 910 | } |
50641945 | 911 | |
bc882aa9 | 912 | /* file_symtab is specified file's symtab, or 0 if no file specified. |
9ef07c8c TT |
913 | If we are parsing `function:symbol', then FUNCTION_SYMBOL is the |
914 | function before the `:'. | |
50641945 FN |
915 | arg no longer contains the file name. */ |
916 | ||
0e0b460e KS |
917 | /* If the filename was quoted, we must re-check the quotation. */ |
918 | ||
919 | if (end_quote == first_half && *end_quote!= '\0') | |
920 | { | |
921 | is_quoted = (**argptr | |
922 | && strchr (get_gdb_completer_quote_characters (), | |
923 | **argptr) != NULL); | |
924 | if (is_quoted) | |
925 | end_quote = skip_quoted (*argptr); | |
926 | } | |
927 | ||
a04257e6 | 928 | /* Check whether arg is all digits (and sign). */ |
50641945 FN |
929 | |
930 | q = *argptr; | |
931 | if (*q == '-' || *q == '+') | |
932 | q++; | |
933 | while (*q >= '0' && *q <= '9') | |
934 | q++; | |
935 | ||
9ef07c8c TT |
936 | if (q != *argptr && (*q == 0 || *q == ' ' || *q == '\t' || *q == ',') |
937 | && function_symbol == NULL) | |
84fba31b DC |
938 | /* We found a token consisting of all digits -- at least one digit. */ |
939 | return decode_all_digits (argptr, default_symtab, default_line, | |
88d262ca | 940 | canonical, file_symtab, q); |
50641945 FN |
941 | |
942 | /* Arg token is not digits => try it as a variable name | |
943 | Find the next token (everything up to end or next whitespace). */ | |
944 | ||
a04257e6 DC |
945 | if (**argptr == '$') /* May be a convenience variable. */ |
946 | /* One or two $ chars possible. */ | |
947 | p = skip_quoted (*argptr + (((*argptr)[1] == '$') ? 2 : 1)); | |
50641945 FN |
948 | else if (is_quoted) |
949 | { | |
791dfb64 | 950 | p = end_quote; |
50641945 | 951 | if (p[-1] != '\'') |
8a3fe4f8 | 952 | error (_("Unmatched single quote.")); |
50641945 | 953 | } |
d2630e69 AF |
954 | else if (is_objc_method) |
955 | { | |
1777feb0 | 956 | /* allow word separators in method names for Obj-C. */ |
d2630e69 AF |
957 | p = skip_quoted_chars (*argptr, NULL, ""); |
958 | } | |
50641945 FN |
959 | else |
960 | { | |
961 | p = skip_quoted (*argptr); | |
962 | } | |
963 | ||
c00f8484 KS |
964 | /* Keep any important naming information. */ |
965 | p = keep_name_info (p); | |
94af9270 | 966 | |
50641945 FN |
967 | copy = (char *) alloca (p - *argptr + 1); |
968 | memcpy (copy, *argptr, p - *argptr); | |
969 | copy[p - *argptr] = '\0'; | |
970 | if (p != *argptr | |
971 | && copy[0] | |
972 | && copy[0] == copy[p - *argptr - 1] | |
c5f0f3d0 | 973 | && strchr (get_gdb_completer_quote_characters (), copy[0]) != NULL) |
50641945 FN |
974 | { |
975 | copy[p - *argptr - 1] = '\0'; | |
976 | copy++; | |
977 | } | |
791dfb64 DJ |
978 | else if (is_quoted) |
979 | copy[p - *argptr - 1] = '\0'; | |
50641945 FN |
980 | while (*p == ' ' || *p == '\t') |
981 | p++; | |
982 | *argptr = p; | |
983 | ||
984 | /* If it starts with $: may be a legitimate variable or routine name | |
985 | (e.g. HP-UX millicode routines such as $$dyncall), or it may | |
a04257e6 | 986 | be history value, or it may be a convenience variable. */ |
50641945 | 987 | |
9ef07c8c | 988 | if (*copy == '$' && function_symbol == NULL) |
14e91ac5 | 989 | return decode_dollar (copy, funfirstline, default_symtab, |
88d262ca | 990 | canonical, file_symtab); |
50641945 | 991 | |
0f5238ed TT |
992 | /* Try the token as a label, but only if no file was specified, |
993 | because we can only really find labels in the current scope. */ | |
994 | ||
995 | if (!file_symtab) | |
996 | { | |
997 | struct symtabs_and_lines label_result; | |
9ef07c8c | 998 | if (decode_label (function_symbol, copy, canonical, &label_result)) |
0f5238ed TT |
999 | return label_result; |
1000 | } | |
1001 | ||
9ef07c8c | 1002 | if (function_symbol) |
58438ac1 | 1003 | throw_exception (file_exception); |
9ef07c8c | 1004 | |
50641945 FN |
1005 | /* Look up that token as a variable. |
1006 | If file specified, use that file's per-file block to start with. */ | |
1007 | ||
58438ac1 | 1008 | return decode_variable (copy, funfirstline, canonical, file_symtab); |
413dad4d | 1009 | } |
50641945 | 1010 | |
44fe14ab DC |
1011 | \f |
1012 | ||
614b3b14 DC |
1013 | /* Now, more helper functions for decode_line_1. Some conventions |
1014 | that these functions follow: | |
1015 | ||
1016 | Decode_line_1 typically passes along some of its arguments or local | |
1017 | variables to the subfunctions. It passes the variables by | |
1018 | reference if they are modified by the subfunction, and by value | |
1019 | otherwise. | |
1020 | ||
1021 | Some of the functions have side effects that don't arise from | |
1022 | variables that are passed by reference. In particular, if a | |
1023 | function is passed ARGPTR as an argument, it modifies what ARGPTR | |
1024 | points to; typically, it advances *ARGPTR past whatever substring | |
1025 | it has just looked at. (If it doesn't modify *ARGPTR, then the | |
94af9270 KS |
1026 | function gets passed *ARGPTR instead, which is then called ARG.) |
1027 | Also, functions that return a struct symtabs_and_lines may modify | |
1028 | CANONICAL, as in the description of decode_line_1. | |
614b3b14 DC |
1029 | |
1030 | If a function returns a struct symtabs_and_lines, then that struct | |
1031 | will immediately make its way up the call chain to be returned by | |
1032 | decode_line_1. In particular, all of the functions decode_XXX | |
1033 | calculate the appropriate struct symtabs_and_lines, under the | |
1034 | assumption that their argument is of the form XXX. */ | |
44fe14ab DC |
1035 | |
1036 | /* First, some functions to initialize stuff at the beggining of the | |
1037 | function. */ | |
1038 | ||
1039 | static void | |
1040 | initialize_defaults (struct symtab **default_symtab, int *default_line) | |
1041 | { | |
1042 | if (*default_symtab == 0) | |
1043 | { | |
1044 | /* Use whatever we have for the default source line. We don't use | |
1045 | get_current_or_default_symtab_and_line as it can recurse and call | |
1777feb0 | 1046 | us back! */ |
44fe14ab DC |
1047 | struct symtab_and_line cursal = |
1048 | get_current_source_symtab_and_line (); | |
1049 | ||
1050 | *default_symtab = cursal.symtab; | |
1051 | *default_line = cursal.line; | |
1052 | } | |
1053 | } | |
1054 | ||
1055 | \f | |
1056 | ||
1057 | /* Decode arg of the form *PC. */ | |
1058 | ||
1059 | static struct symtabs_and_lines | |
1060 | decode_indirect (char **argptr) | |
1061 | { | |
1062 | struct symtabs_and_lines values; | |
1063 | CORE_ADDR pc; | |
1064 | ||
1065 | (*argptr)++; | |
63ffa6ee | 1066 | pc = value_as_address (parse_to_comma_and_eval (argptr)); |
44fe14ab DC |
1067 | |
1068 | values.sals = (struct symtab_and_line *) | |
1069 | xmalloc (sizeof (struct symtab_and_line)); | |
1070 | ||
1071 | values.nelts = 1; | |
1072 | values.sals[0] = find_pc_line (pc, 0); | |
1073 | values.sals[0].pc = pc; | |
1074 | values.sals[0].section = find_pc_overlay (pc); | |
ed0616c6 | 1075 | values.sals[0].explicit_pc = 1; |
44fe14ab DC |
1076 | |
1077 | return values; | |
1078 | } | |
413dad4d DC |
1079 | |
1080 | \f | |
1081 | ||
0960f083 DC |
1082 | /* Locate the first half of the linespec, ending in a colon, period, |
1083 | or whitespace. (More or less.) Also, check to see if *ARGPTR is | |
1084 | enclosed in double quotes; if so, set is_quote_enclosed, advance | |
17763fd9 EZ |
1085 | ARGPTR past that and zero out the trailing double quote. |
1086 | If ARGPTR is just a simple name like "main", p will point to "" | |
1087 | at the end. */ | |
0960f083 DC |
1088 | |
1089 | static char * | |
1090 | locate_first_half (char **argptr, int *is_quote_enclosed) | |
1091 | { | |
1092 | char *ii; | |
1093 | char *p, *p1; | |
1094 | int has_comma; | |
1095 | ||
1096 | /* Maybe we were called with a line range FILENAME:LINENUM,FILENAME:LINENUM | |
1097 | and we must isolate the first half. Outer layers will call again later | |
1098 | for the second half. | |
1099 | ||
1100 | Don't count commas that appear in argument lists of overloaded | |
1101 | functions, or in quoted strings. It's stupid to go to this much | |
1102 | trouble when the rest of the function is such an obvious roach hotel. */ | |
1103 | ii = find_toplevel_char (*argptr, ','); | |
1104 | has_comma = (ii != 0); | |
1105 | ||
a04257e6 | 1106 | /* Temporarily zap out second half to not confuse the code below. |
1777feb0 | 1107 | This is undone below. Do not change ii!! */ |
0960f083 DC |
1108 | if (has_comma) |
1109 | { | |
1110 | *ii = '\0'; | |
1111 | } | |
1112 | ||
a04257e6 DC |
1113 | /* Maybe arg is FILE : LINENUM or FILE : FUNCTION. May also be |
1114 | CLASS::MEMBER, or NAMESPACE::NAME. Look for ':', but ignore | |
1115 | inside of <>. */ | |
0960f083 DC |
1116 | |
1117 | p = *argptr; | |
1118 | if (p[0] == '"') | |
1119 | { | |
1120 | *is_quote_enclosed = 1; | |
1121 | (*argptr)++; | |
1122 | p++; | |
1123 | } | |
1124 | else | |
0e0b460e KS |
1125 | { |
1126 | *is_quote_enclosed = 0; | |
1127 | if (strchr (get_gdb_completer_quote_characters (), *p)) | |
1128 | { | |
1129 | ++(*argptr); | |
1130 | ++p; | |
1131 | } | |
1132 | } | |
0960f083 DC |
1133 | for (; *p; p++) |
1134 | { | |
1135 | if (p[0] == '<') | |
1136 | { | |
1137 | char *temp_end = find_template_name_end (p); | |
e0881a8e | 1138 | |
0960f083 | 1139 | if (!temp_end) |
8a3fe4f8 | 1140 | error (_("malformed template specification in command")); |
0960f083 DC |
1141 | p = temp_end; |
1142 | } | |
c00f8484 KS |
1143 | |
1144 | if (p[0] == '(') | |
1145 | p = find_method_overload_end (p); | |
1146 | ||
d2630e69 | 1147 | /* Check for a colon and a plus or minus and a [ (which |
1777feb0 | 1148 | indicates an Objective-C method). */ |
889f28e2 | 1149 | if (is_objc_method_format (p)) |
d2630e69 AF |
1150 | { |
1151 | break; | |
1152 | } | |
a04257e6 DC |
1153 | /* Check for the end of the first half of the linespec. End of |
1154 | line, a tab, a double colon or the last single colon, or a | |
1155 | space. But if enclosed in double quotes we do not break on | |
1156 | enclosed spaces. */ | |
0960f083 DC |
1157 | if (!*p |
1158 | || p[0] == '\t' | |
1159 | || ((p[0] == ':') | |
1160 | && ((p[1] == ':') || (strchr (p + 1, ':') == NULL))) | |
1161 | || ((p[0] == ' ') && !*is_quote_enclosed)) | |
1162 | break; | |
a04257e6 | 1163 | if (p[0] == '.' && strchr (p, ':') == NULL) |
0960f083 | 1164 | { |
a04257e6 | 1165 | /* Java qualified method. Find the *last* '.', since the |
94af9270 KS |
1166 | others are package qualifiers. Stop at any open parenthesis |
1167 | which might provide overload information. */ | |
1168 | for (p1 = p; *p1 && *p1 != '('; p1++) | |
0960f083 DC |
1169 | { |
1170 | if (*p1 == '.') | |
1171 | p = p1; | |
1172 | } | |
1173 | break; | |
1174 | } | |
1175 | } | |
1176 | while (p[0] == ' ' || p[0] == '\t') | |
1177 | p++; | |
1178 | ||
a04257e6 | 1179 | /* If the closing double quote was left at the end, remove it. */ |
0960f083 DC |
1180 | if (*is_quote_enclosed) |
1181 | { | |
1182 | char *closing_quote = strchr (p - 1, '"'); | |
e0881a8e | 1183 | |
0960f083 DC |
1184 | if (closing_quote && closing_quote[1] == '\0') |
1185 | *closing_quote = '\0'; | |
1186 | } | |
1187 | ||
a04257e6 DC |
1188 | /* Now that we've safely parsed the first half, put back ',' so |
1189 | outer layers can see it. */ | |
0960f083 DC |
1190 | if (has_comma) |
1191 | *ii = ','; | |
1192 | ||
1193 | return p; | |
1194 | } | |
1195 | ||
1196 | \f | |
1197 | ||
d2630e69 AF |
1198 | /* Here's where we recognise an Objective-C Selector. An Objective C |
1199 | selector may be implemented by more than one class, therefore it | |
1200 | may represent more than one method/function. This gives us a | |
1201 | situation somewhat analogous to C++ overloading. If there's more | |
1202 | than one method that could represent the selector, then use some of | |
1203 | the existing C++ code to let the user choose one. */ | |
1204 | ||
1205 | struct symtabs_and_lines | |
1206 | decode_objc (char **argptr, int funfirstline, struct symtab *file_symtab, | |
7efd8fc2 | 1207 | struct linespec_result *canonical, char *saved_arg) |
d2630e69 AF |
1208 | { |
1209 | struct symtabs_and_lines values; | |
1210 | struct symbol **sym_arr = NULL; | |
1211 | struct symbol *sym = NULL; | |
d2630e69 | 1212 | struct block *block = NULL; |
15550d6b MK |
1213 | unsigned i1 = 0; |
1214 | unsigned i2 = 0; | |
d2630e69 AF |
1215 | |
1216 | values.sals = NULL; | |
1217 | values.nelts = 0; | |
1218 | ||
1219 | if (file_symtab != NULL) | |
1220 | block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (file_symtab), STATIC_BLOCK); | |
1221 | else | |
c4fc331b AS |
1222 | { |
1223 | enum language save_language; | |
1224 | ||
1225 | /* get_selected_block can change the current language when there is | |
1226 | no selected frame yet. */ | |
1227 | save_language = current_language->la_language; | |
1228 | block = get_selected_block (0); | |
1229 | set_language (save_language); | |
1230 | } | |
1231 | ||
5715d26e | 1232 | find_imps (file_symtab, block, *argptr, NULL, &i1, &i2); |
d2630e69 AF |
1233 | |
1234 | if (i1 > 0) | |
1235 | { | |
1777feb0 MS |
1236 | sym_arr = (struct symbol **) |
1237 | alloca ((i1 + 1) * sizeof (struct symbol *)); | |
46be51c4 | 1238 | sym_arr[i1] = NULL; |
d2630e69 | 1239 | |
5715d26e | 1240 | *argptr = find_imps (file_symtab, block, *argptr, sym_arr, &i1, &i2); |
d2630e69 AF |
1241 | } |
1242 | ||
1243 | /* i1 now represents the TOTAL number of matches found. | |
1244 | i2 represents how many HIGH-LEVEL (struct symbol) matches, | |
1245 | which will come first in the sym_arr array. Any low-level | |
1246 | (minimal_symbol) matches will follow those. */ | |
1247 | ||
1248 | if (i1 == 1) | |
1249 | { | |
1250 | if (i2 > 0) | |
1251 | { | |
1252 | /* Already a struct symbol. */ | |
1253 | sym = sym_arr[0]; | |
1254 | } | |
1255 | else | |
1256 | { | |
1257 | sym = find_pc_function (SYMBOL_VALUE_ADDRESS (sym_arr[0])); | |
3e43a32a MS |
1258 | if ((sym != NULL) && strcmp (SYMBOL_LINKAGE_NAME (sym_arr[0]), |
1259 | SYMBOL_LINKAGE_NAME (sym)) != 0) | |
d2630e69 | 1260 | { |
3e43a32a MS |
1261 | warning (_("debugging symbol \"%s\" does " |
1262 | "not match selector; ignoring"), | |
1263 | SYMBOL_LINKAGE_NAME (sym)); | |
d2630e69 AF |
1264 | sym = NULL; |
1265 | } | |
1266 | } | |
1267 | ||
3e43a32a MS |
1268 | values.sals = (struct symtab_and_line *) |
1269 | xmalloc (sizeof (struct symtab_and_line)); | |
d2630e69 AF |
1270 | values.nelts = 1; |
1271 | ||
1272 | if (sym && SYMBOL_CLASS (sym) == LOC_BLOCK) | |
1273 | { | |
1274 | /* Canonicalize this, so it remains resolved for dylib loads. */ | |
1275 | values.sals[0] = find_function_start_sal (sym, funfirstline); | |
3e43a32a MS |
1276 | build_canonical_line_spec (values.sals, |
1277 | SYMBOL_NATURAL_NAME (sym), canonical); | |
d2630e69 AF |
1278 | } |
1279 | else | |
1280 | { | |
69368a60 UW |
1281 | /* The only match was a non-debuggable symbol, which might point |
1282 | to a function descriptor; resolve it to the actual code address | |
1283 | instead. */ | |
1284 | struct minimal_symbol *msymbol = (struct minimal_symbol *)sym_arr[0]; | |
1285 | struct objfile *objfile = msymbol_objfile (msymbol); | |
1286 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
1287 | CORE_ADDR pc = SYMBOL_VALUE_ADDRESS (msymbol); | |
1288 | ||
1289 | pc = gdbarch_convert_from_func_ptr_addr (gdbarch, pc, | |
1290 | ¤t_target); | |
1291 | ||
1292 | init_sal (&values.sals[0]); | |
1293 | values.sals[0].pc = pc; | |
d2630e69 AF |
1294 | } |
1295 | return values; | |
1296 | } | |
1297 | ||
1298 | if (i1 > 1) | |
1299 | { | |
1777feb0 | 1300 | /* More than one match. The user must choose one or more. */ |
d2630e69 AF |
1301 | return decode_line_2 (sym_arr, i2, funfirstline, canonical); |
1302 | } | |
1303 | ||
1304 | return values; | |
1305 | } | |
1306 | ||
614b3b14 | 1307 | /* This handles C++ and Java compound data structures. P should point |
17763fd9 EZ |
1308 | at the first component separator, i.e. double-colon or period. As |
1309 | an example, on entrance to this function we could have ARGPTR | |
1310 | pointing to "AAA::inA::fun" and P pointing to "::inA::fun". */ | |
614b3b14 DC |
1311 | |
1312 | static struct symtabs_and_lines | |
7efd8fc2 TT |
1313 | decode_compound (char **argptr, int funfirstline, |
1314 | struct linespec_result *canonical, | |
58438ac1 | 1315 | char *the_real_saved_arg, char *p) |
614b3b14 DC |
1316 | { |
1317 | struct symtabs_and_lines values; | |
93d91629 | 1318 | char *p2; |
614b3b14 DC |
1319 | char *saved_arg2 = *argptr; |
1320 | char *temp_end; | |
1321 | struct symbol *sym; | |
614b3b14 DC |
1322 | char *copy; |
1323 | struct symbol *sym_class; | |
614b3b14 | 1324 | struct type *t; |
94af9270 | 1325 | char *saved_java_argptr = NULL; |
c00f8484 KS |
1326 | char *saved_arg; |
1327 | ||
1328 | /* If the user specified any completer quote characters in the input, | |
1329 | strip them. They are superfluous. */ | |
1330 | saved_arg = alloca (strlen (the_real_saved_arg) + 1); | |
1331 | { | |
1332 | char *dst = saved_arg; | |
1333 | char *src = the_real_saved_arg; | |
1334 | char *quotes = get_gdb_completer_quote_characters (); | |
1335 | while (*src != '\0') | |
1336 | { | |
1337 | if (strchr (quotes, *src) == NULL) | |
1338 | *dst++ = *src; | |
1339 | ++src; | |
1340 | } | |
1341 | *dst = '\0'; | |
1342 | } | |
614b3b14 | 1343 | |
17763fd9 EZ |
1344 | /* First check for "global" namespace specification, of the form |
1345 | "::foo". If found, skip over the colons and jump to normal | |
1346 | symbol processing. I.e. the whole line specification starts with | |
1777feb0 | 1347 | "::" (note the condition that *argptr == p). */ |
614b3b14 DC |
1348 | if (p[0] == ':' |
1349 | && ((*argptr == p) || (p[-1] == ' ') || (p[-1] == '\t'))) | |
1350 | saved_arg2 += 2; | |
1351 | ||
87b3ede8 DC |
1352 | /* Given our example "AAA::inA::fun", we have two cases to consider: |
1353 | ||
1354 | 1) AAA::inA is the name of a class. In that case, presumably it | |
1355 | has a method called "fun"; we then look up that method using | |
1356 | find_method. | |
1357 | ||
1358 | 2) AAA::inA isn't the name of a class. In that case, either the | |
c00f8484 KS |
1359 | user made a typo, AAA::inA is the name of a namespace, or it is |
1360 | the name of a minimal symbol. | |
1361 | We just look up AAA::inA::fun with lookup_symbol. If that fails, | |
1362 | try lookup_minimal_symbol. | |
87b3ede8 DC |
1363 | |
1364 | Thus, our first task is to find everything before the last set of | |
1365 | double-colons and figure out if it's the name of a class. So we | |
1366 | first loop through all of the double-colons. */ | |
614b3b14 | 1367 | |
a04257e6 | 1368 | p2 = p; /* Save for restart. */ |
17763fd9 | 1369 | |
1777feb0 | 1370 | /* This is very messy. Following the example above we have now the |
17763fd9 EZ |
1371 | following pointers: |
1372 | p -> "::inA::fun" | |
1373 | argptr -> "AAA::inA::fun | |
1374 | saved_arg -> "AAA::inA::fun | |
1375 | saved_arg2 -> "AAA::inA::fun | |
1777feb0 | 1376 | p2 -> "::inA::fun". */ |
17763fd9 EZ |
1377 | |
1378 | /* In the loop below, with these strings, we'll make 2 passes, each | |
1777feb0 | 1379 | is marked in comments. */ |
17763fd9 | 1380 | |
614b3b14 DC |
1381 | while (1) |
1382 | { | |
c00f8484 KS |
1383 | static char *break_characters = " \t("; |
1384 | ||
a04257e6 | 1385 | /* Move pointer up to next possible class/namespace token. */ |
17763fd9 | 1386 | |
a04257e6 | 1387 | p = p2 + 1; /* Restart with old value +1. */ |
17763fd9 EZ |
1388 | |
1389 | /* PASS1: at this point p2->"::inA::fun", so p->":inA::fun", | |
1390 | i.e. if there is a double-colon, p will now point to the | |
1777feb0 | 1391 | second colon. */ |
87b3ede8 | 1392 | /* PASS2: p2->"::fun", p->":fun" */ |
17763fd9 | 1393 | |
a04257e6 | 1394 | /* Move pointer ahead to next double-colon. */ |
c00f8484 KS |
1395 | while (*p |
1396 | && strchr (break_characters, *p) == NULL | |
1397 | && strchr (get_gdb_completer_quote_characters (), *p) == NULL) | |
614b3b14 | 1398 | { |
12907978 KS |
1399 | if (current_language->la_language == language_cplus) |
1400 | p += cp_validate_operator (p); | |
1401 | ||
614b3b14 DC |
1402 | if (p[0] == '<') |
1403 | { | |
1404 | temp_end = find_template_name_end (p); | |
1405 | if (!temp_end) | |
8a3fe4f8 | 1406 | error (_("malformed template specification in command")); |
614b3b14 DC |
1407 | p = temp_end; |
1408 | } | |
17763fd9 EZ |
1409 | /* Note that, since, at the start of this loop, p would be |
1410 | pointing to the second colon in a double-colon, we only | |
1411 | satisfy the condition below if there is another | |
1777feb0 MS |
1412 | double-colon to the right (after). I.e. there is another |
1413 | component that can be a class or a namespace. I.e, if at | |
17763fd9 EZ |
1414 | the beginning of this loop (PASS1), we had |
1415 | p->":inA::fun", we'll trigger this when p has been | |
1416 | advanced to point to "::fun". */ | |
1777feb0 | 1417 | /* PASS2: we will not trigger this. */ |
614b3b14 | 1418 | else if ((p[0] == ':') && (p[1] == ':')) |
a04257e6 | 1419 | break; /* Found double-colon. */ |
614b3b14 | 1420 | else |
c00f8484 KS |
1421 | { |
1422 | /* PASS2: We'll keep getting here, until P points to one of the | |
1423 | break characters, at which point we exit this loop. */ | |
1424 | if (*p && strchr (break_characters, *p) == NULL) | |
1425 | p++; | |
1426 | } | |
614b3b14 DC |
1427 | } |
1428 | ||
1429 | if (*p != ':') | |
17763fd9 EZ |
1430 | break; /* Out of the while (1). This would happen |
1431 | for instance if we have looked up | |
1432 | unsuccessfully all the components of the | |
1777feb0 | 1433 | string, and p->""(PASS2). */ |
17763fd9 | 1434 | |
c00f8484 | 1435 | /* We get here if p points to one of the break characters or "" (i.e., |
1777feb0 | 1436 | string ended). */ |
17763fd9 EZ |
1437 | /* Save restart for next time around. */ |
1438 | p2 = p; | |
1439 | /* Restore argptr as it was on entry to this function. */ | |
1440 | *argptr = saved_arg2; | |
87b3ede8 DC |
1441 | /* PASS1: at this point p->"::fun" argptr->"AAA::inA::fun", |
1442 | p2->"::fun". */ | |
17763fd9 EZ |
1443 | |
1444 | /* All ready for next pass through the loop. */ | |
614b3b14 DC |
1445 | } /* while (1) */ |
1446 | ||
87b3ede8 | 1447 | |
1777feb0 | 1448 | /* Start of lookup in the symbol tables. */ |
87b3ede8 DC |
1449 | |
1450 | /* Lookup in the symbol table the substring between argptr and | |
1777feb0 | 1451 | p. Note, this call changes the value of argptr. */ |
87b3ede8 DC |
1452 | /* Before the call, argptr->"AAA::inA::fun", |
1453 | p->"", p2->"::fun". After the call: argptr->"fun", p, p2 | |
1454 | unchanged. */ | |
1455 | sym_class = lookup_prefix_sym (argptr, p2); | |
1456 | ||
1457 | /* If sym_class has been found, and if "AAA::inA" is a class, then | |
1458 | we're in case 1 above. So we look up "fun" as a method of that | |
1459 | class. */ | |
1460 | if (sym_class && | |
1461 | (t = check_typedef (SYMBOL_TYPE (sym_class)), | |
1462 | (TYPE_CODE (t) == TYPE_CODE_STRUCT | |
1463 | || TYPE_CODE (t) == TYPE_CODE_UNION))) | |
1464 | { | |
1465 | /* Arg token is not digits => try it as a function name. | |
1466 | Find the next token (everything up to end or next | |
1467 | blank). */ | |
1468 | if (**argptr | |
1469 | && strchr (get_gdb_completer_quote_characters (), | |
1470 | **argptr) != NULL) | |
1471 | { | |
1472 | p = skip_quoted (*argptr); | |
1473 | *argptr = *argptr + 1; | |
1474 | } | |
1475 | else | |
1476 | { | |
1477 | /* At this point argptr->"fun". */ | |
94af9270 | 1478 | char *a; |
e0881a8e | 1479 | |
87b3ede8 | 1480 | p = *argptr; |
94af9270 KS |
1481 | while (*p && *p != ' ' && *p != '\t' && *p != ',' && *p != ':' |
1482 | && *p != '(') | |
87b3ede8 DC |
1483 | p++; |
1484 | /* At this point p->"". String ended. */ | |
12907978 KS |
1485 | /* Nope, C++ operators could have spaces in them |
1486 | ("foo::operator <" or "foo::operator delete []"). | |
1487 | I apologize, this is a bit hacky... */ | |
1488 | if (current_language->la_language == language_cplus | |
1489 | && *p == ' ' && p - 8 - *argptr + 1 > 0) | |
1490 | { | |
1491 | /* The above loop has already swallowed "operator". */ | |
1492 | p += cp_validate_operator (p - 8) - 8; | |
1493 | } | |
94af9270 | 1494 | |
c00f8484 KS |
1495 | /* Keep any important naming information. */ |
1496 | p = keep_name_info (p); | |
94af9270 KS |
1497 | |
1498 | /* Java may append typenames, so assume that if there is | |
1499 | anything else left in *argptr, it must be a typename. */ | |
1500 | if (*p && current_language->la_language == language_java) | |
1501 | { | |
1502 | struct type *type; | |
e0881a8e | 1503 | |
94af9270 KS |
1504 | p2 = p; |
1505 | while (*p2) | |
1506 | ++p2; | |
1507 | copy = (char *) alloca (p2 - p + 1); | |
1508 | memcpy (copy, p, p2 - p); | |
1509 | copy[p2 - p] = '\0'; | |
1510 | type = lookup_typename (current_language, get_current_arch (), | |
1511 | copy, NULL, 1); | |
1512 | if (type != NULL) | |
1513 | { | |
1514 | /* Save the location of this just in case this | |
1515 | method/type combination isn't actually defined. | |
1516 | It will be checked later. */ | |
1517 | saved_java_argptr = p; | |
1518 | p = p2; | |
1519 | } | |
1520 | } | |
87b3ede8 DC |
1521 | } |
1522 | ||
1523 | /* Allocate our own copy of the substring between argptr and | |
1777feb0 | 1524 | p. */ |
87b3ede8 DC |
1525 | copy = (char *) alloca (p - *argptr + 1); |
1526 | memcpy (copy, *argptr, p - *argptr); | |
1527 | copy[p - *argptr] = '\0'; | |
1528 | if (p != *argptr | |
1529 | && copy[p - *argptr - 1] | |
1530 | && strchr (get_gdb_completer_quote_characters (), | |
1531 | copy[p - *argptr - 1]) != NULL) | |
1532 | copy[p - *argptr - 1] = '\0'; | |
1533 | ||
1777feb0 | 1534 | /* At this point copy->"fun", p->"". */ |
87b3ede8 DC |
1535 | |
1536 | /* No line number may be specified. */ | |
1537 | while (*p == ' ' || *p == '\t') | |
1538 | p++; | |
1539 | *argptr = p; | |
1540 | /* At this point arptr->"". */ | |
1541 | ||
1777feb0 | 1542 | /* Look for copy as a method of sym_class. */ |
87b3ede8 DC |
1543 | /* At this point copy->"fun", sym_class is "AAA:inA", |
1544 | saved_arg->"AAA::inA::fun". This concludes the scanning of | |
1545 | the string for possible components matches. If we find it | |
1777feb0 | 1546 | here, we return. If not, and we are at the and of the string, |
87b3ede8 DC |
1547 | we'll lookup the whole string in the symbol tables. */ |
1548 | ||
94af9270 | 1549 | values = find_method (funfirstline, canonical, saved_arg, |
58438ac1 | 1550 | copy, t, sym_class); |
94af9270 KS |
1551 | if (saved_java_argptr != NULL && values.nelts == 1) |
1552 | { | |
1553 | /* The user specified a specific return type for a java method. | |
1554 | Double-check that it really is the one the user specified. | |
1555 | [This is a necessary evil because strcmp_iw_ordered stops | |
1556 | comparisons too prematurely.] */ | |
1557 | sym = find_pc_sect_function (values.sals[0].pc, | |
1558 | values.sals[0].section); | |
1559 | /* We just found a SAL, we had better be able to go backwards! */ | |
1560 | gdb_assert (sym != NULL); | |
1561 | if (strcmp_iw (SYMBOL_LINKAGE_NAME (sym), saved_arg) != 0) | |
1562 | { | |
1563 | xfree (values.sals); | |
3e43a32a | 1564 | error (_("the class `%s' does not have " |
8f7e195f | 1565 | "any method instance named %s"), |
94af9270 KS |
1566 | SYMBOL_PRINT_NAME (sym_class), copy); |
1567 | } | |
1568 | } | |
1569 | return values; | |
1777feb0 | 1570 | } /* End if symbol found. */ |
87b3ede8 DC |
1571 | |
1572 | ||
1573 | /* We couldn't find a class, so we're in case 2 above. We check the | |
1574 | entire name as a symbol instead. */ | |
1575 | ||
c00f8484 KS |
1576 | if (current_language->la_language == language_cplus |
1577 | || current_language->la_language == language_java) | |
1578 | p = keep_name_info (p); | |
1579 | ||
614b3b14 DC |
1580 | copy = (char *) alloca (p - saved_arg2 + 1); |
1581 | memcpy (copy, saved_arg2, p - saved_arg2); | |
a04257e6 DC |
1582 | /* Note: if is_quoted should be true, we snuff out quote here |
1583 | anyway. */ | |
614b3b14 | 1584 | copy[p - saved_arg2] = '\000'; |
a04257e6 | 1585 | /* Set argptr to skip over the name. */ |
614b3b14 | 1586 | *argptr = (*p == '\'') ? p + 1 : p; |
17763fd9 | 1587 | |
1777feb0 | 1588 | /* Look up entire name. */ |
c00f8484 | 1589 | sym = lookup_symbol (copy, get_selected_block (0), VAR_DOMAIN, 0); |
614b3b14 | 1590 | if (sym) |
9ef07c8c | 1591 | return symbol_found (funfirstline, canonical, copy, sym, NULL, NULL); |
c00f8484 KS |
1592 | else |
1593 | { | |
1594 | struct minimal_symbol *msym; | |
1595 | ||
1596 | /* Couldn't find any interpretation as classes/namespaces. As a last | |
1597 | resort, try the minimal symbol tables. */ | |
1598 | msym = lookup_minimal_symbol (copy, NULL, NULL); | |
1599 | if (msym != NULL) | |
1600 | return minsym_found (funfirstline, msym); | |
1601 | } | |
614b3b14 | 1602 | |
c00f8484 | 1603 | /* Couldn't find a minimal symbol, either, so give up. */ |
c00f8484 | 1604 | cplusplus_error (the_real_saved_arg, |
3e43a32a MS |
1605 | "Can't find member of namespace, " |
1606 | "class, struct, or union named \"%s\"\n", | |
614b3b14 DC |
1607 | copy); |
1608 | } | |
1609 | ||
93d91629 DC |
1610 | /* Next come some helper functions for decode_compound. */ |
1611 | ||
1612 | /* Return the symbol corresponding to the substring of *ARGPTR ending | |
1613 | at P, allowing whitespace. Also, advance *ARGPTR past the symbol | |
1614 | name in question, the compound object separator ("::" or "."), and | |
17763fd9 EZ |
1615 | whitespace. Note that *ARGPTR is changed whether or not the |
1616 | lookup_symbol call finds anything (i.e we return NULL). As an | |
1617 | example, say ARGPTR is "AAA::inA::fun" and P is "::inA::fun". */ | |
93d91629 DC |
1618 | |
1619 | static struct symbol * | |
1620 | lookup_prefix_sym (char **argptr, char *p) | |
1621 | { | |
1622 | char *p1; | |
1623 | char *copy; | |
1e5a1abc | 1624 | struct symbol *sym; |
93d91629 DC |
1625 | |
1626 | /* Extract the class name. */ | |
1627 | p1 = p; | |
1628 | while (p != *argptr && p[-1] == ' ') | |
1629 | --p; | |
1630 | copy = (char *) alloca (p - *argptr + 1); | |
1631 | memcpy (copy, *argptr, p - *argptr); | |
1632 | copy[p - *argptr] = 0; | |
1633 | ||
17763fd9 | 1634 | /* Discard the class name from the argptr. */ |
93d91629 DC |
1635 | p = p1 + (p1[0] == ':' ? 2 : 1); |
1636 | while (*p == ' ' || *p == '\t') | |
1637 | p++; | |
1638 | *argptr = p; | |
1639 | ||
17763fd9 | 1640 | /* At this point p1->"::inA::fun", p->"inA::fun" copy->"AAA", |
1777feb0 | 1641 | argptr->"inA::fun". */ |
17763fd9 | 1642 | |
c00f8484 | 1643 | sym = lookup_symbol (copy, get_selected_block (0), STRUCT_DOMAIN, 0); |
1e5a1abc KS |
1644 | if (sym == NULL) |
1645 | { | |
1646 | /* Typedefs are in VAR_DOMAIN so the above symbol lookup will | |
1647 | fail when the user attempts to lookup a method of a class | |
1648 | via a typedef'd name (NOT via the class's name, which is already | |
1649 | handled in symbol_matches_domain). So try the lookup again | |
1650 | using VAR_DOMAIN (where typedefs live) and double-check that we | |
1651 | found a struct/class type. */ | |
1652 | struct symbol *s = lookup_symbol (copy, 0, VAR_DOMAIN, 0); | |
e0881a8e | 1653 | |
1e5a1abc KS |
1654 | if (s != NULL) |
1655 | { | |
1656 | struct type *t = SYMBOL_TYPE (s); | |
e0881a8e | 1657 | |
1e5a1abc KS |
1658 | CHECK_TYPEDEF (t); |
1659 | if (TYPE_CODE (t) == TYPE_CODE_STRUCT) | |
1660 | return s; | |
1661 | } | |
1662 | } | |
1663 | ||
1664 | return sym; | |
93d91629 DC |
1665 | } |
1666 | ||
4224873a DC |
1667 | /* This finds the method COPY in the class whose type is T and whose |
1668 | symbol is SYM_CLASS. */ | |
1669 | ||
1670 | static struct symtabs_and_lines | |
7efd8fc2 TT |
1671 | find_method (int funfirstline, struct linespec_result *canonical, |
1672 | char *saved_arg, | |
58438ac1 | 1673 | char *copy, struct type *t, struct symbol *sym_class) |
4224873a DC |
1674 | { |
1675 | struct symtabs_and_lines values; | |
46be51c4 | 1676 | struct symbol *sym = NULL; |
78a11fb4 | 1677 | int i1; /* Counter for the symbol array. */ |
4224873a DC |
1678 | struct symbol **sym_arr = alloca (total_number_of_methods (t) |
1679 | * sizeof (struct symbol *)); | |
1680 | ||
78a11fb4 DC |
1681 | /* Find all methods with a matching name, and put them in |
1682 | sym_arr. */ | |
4224873a | 1683 | |
19ef5c71 | 1684 | i1 = find_methods (t, copy, SYMBOL_LANGUAGE (sym_class), sym_arr); |
4224873a | 1685 | |
4224873a DC |
1686 | if (i1 == 1) |
1687 | { | |
1688 | /* There is exactly one field with that name. */ | |
1689 | sym = sym_arr[0]; | |
1690 | ||
1691 | if (sym && SYMBOL_CLASS (sym) == LOC_BLOCK) | |
1692 | { | |
1693 | values.sals = (struct symtab_and_line *) | |
1694 | xmalloc (sizeof (struct symtab_and_line)); | |
1695 | values.nelts = 1; | |
1696 | values.sals[0] = find_function_start_sal (sym, | |
1697 | funfirstline); | |
1698 | } | |
1699 | else | |
1700 | { | |
15550d6b | 1701 | values.sals = NULL; |
4224873a DC |
1702 | values.nelts = 0; |
1703 | } | |
1704 | return values; | |
1705 | } | |
1706 | if (i1 > 0) | |
1707 | { | |
94af9270 KS |
1708 | /* If we were given a specific overload instance, use that |
1709 | (or error if no matches were found). Otherwise ask the user | |
1710 | which one to use. */ | |
c00f8484 | 1711 | if (strchr (copy, '(')) |
94af9270 KS |
1712 | { |
1713 | int i; | |
c00f8484 KS |
1714 | char *name; |
1715 | char *canon; | |
d03a3acf | 1716 | struct cleanup *cleanup; |
e0881a8e | 1717 | |
c00f8484 KS |
1718 | /* Construct the proper search name based on SYM_CLASS and COPY. |
1719 | SAVED_ARG may contain a valid name, but that name might not be | |
1720 | what is actually stored in the symbol table. For example, | |
1721 | if SAVED_ARG (and SYM_CLASS) were found via an import | |
1722 | ("using namespace" in C++), then the physname of | |
1723 | SYM_CLASS ("A::myclass") may not be the same as SAVED_ARG | |
1724 | ("myclass"). */ | |
1725 | name = xmalloc (strlen (SYMBOL_NATURAL_NAME (sym_class)) | |
1726 | + 2 /* "::" */ + strlen (copy) + 1); | |
1727 | strcpy (name, SYMBOL_NATURAL_NAME (sym_class)); | |
1728 | strcat (name, "::"); | |
1729 | strcat (name, copy); | |
1730 | canon = cp_canonicalize_string (name); | |
d03a3acf | 1731 | if (canon != NULL) |
94af9270 | 1732 | { |
c00f8484 | 1733 | xfree (name); |
d03a3acf | 1734 | name = canon; |
d03a3acf | 1735 | } |
c00f8484 | 1736 | cleanup = make_cleanup (xfree, name); |
94af9270 | 1737 | |
d03a3acf KS |
1738 | for (i = 0; i < i1; ++i) |
1739 | { | |
94af9270 KS |
1740 | if (strcmp_iw (name, SYMBOL_LINKAGE_NAME (sym_arr[i])) == 0) |
1741 | { | |
1742 | values.sals = (struct symtab_and_line *) | |
1743 | xmalloc (sizeof (struct symtab_and_line)); | |
1744 | values.nelts = 1; | |
1745 | values.sals[0] = find_function_start_sal (sym_arr[i], | |
1746 | funfirstline); | |
d03a3acf | 1747 | do_cleanups (cleanup); |
94af9270 KS |
1748 | return values; |
1749 | } | |
94af9270 KS |
1750 | } |
1751 | ||
3e43a32a | 1752 | error (_("the class `%s' does not have " |
8f7e195f | 1753 | "any method instance named %s"), |
94af9270 KS |
1754 | SYMBOL_PRINT_NAME (sym_class), copy); |
1755 | } | |
1756 | ||
4224873a DC |
1757 | return decode_line_2 (sym_arr, i1, funfirstline, canonical); |
1758 | } | |
1759 | else | |
1760 | { | |
12907978 | 1761 | if (copy[0] == '~') |
4224873a DC |
1762 | cplusplus_error (saved_arg, |
1763 | "the class `%s' does not have destructor defined\n", | |
1764 | SYMBOL_PRINT_NAME (sym_class)); | |
1765 | else | |
1766 | cplusplus_error (saved_arg, | |
1767 | "the class %s does not have any method named %s\n", | |
12907978 | 1768 | SYMBOL_PRINT_NAME (sym_class), copy); |
4224873a DC |
1769 | } |
1770 | } | |
1771 | ||
f3c39e76 DC |
1772 | \f |
1773 | ||
1774 | /* Return the symtab associated to the filename given by the substring | |
58438ac1 | 1775 | of *ARGPTR ending at P, and advance ARGPTR past that filename. */ |
f3c39e76 DC |
1776 | |
1777 | static struct symtab * | |
58438ac1 | 1778 | symtab_from_filename (char **argptr, char *p, int is_quote_enclosed) |
f3c39e76 DC |
1779 | { |
1780 | char *p1; | |
1781 | char *copy; | |
94cd26f8 | 1782 | struct symtab *file_symtab; |
f3c39e76 DC |
1783 | |
1784 | p1 = p; | |
1785 | while (p != *argptr && p[-1] == ' ') | |
1786 | --p; | |
1787 | if ((*p == '"') && is_quote_enclosed) | |
1788 | --p; | |
1789 | copy = (char *) alloca (p - *argptr + 1); | |
1790 | memcpy (copy, *argptr, p - *argptr); | |
a04257e6 | 1791 | /* It may have the ending quote right after the file name. */ |
0e0b460e KS |
1792 | if ((is_quote_enclosed && copy[p - *argptr - 1] == '"') |
1793 | || copy[p - *argptr - 1] == '\'') | |
f3c39e76 DC |
1794 | copy[p - *argptr - 1] = 0; |
1795 | else | |
1796 | copy[p - *argptr] = 0; | |
1797 | ||
1798 | /* Find that file's data. */ | |
94cd26f8 DC |
1799 | file_symtab = lookup_symtab (copy); |
1800 | if (file_symtab == 0) | |
f3c39e76 | 1801 | { |
b96e2927 PA |
1802 | if (!have_full_symbols () && !have_partial_symbols ()) |
1803 | throw_error (NOT_FOUND_ERROR, | |
3e43a32a MS |
1804 | _("No symbol table is loaded. " |
1805 | "Use the \"file\" command.")); | |
109c3e39 | 1806 | throw_error (NOT_FOUND_ERROR, _("No source file named %s."), copy); |
f3c39e76 DC |
1807 | } |
1808 | ||
1809 | /* Discard the file name from the arg. */ | |
1810 | p = p1 + 1; | |
1811 | while (*p == ' ' || *p == '\t') | |
1812 | p++; | |
1813 | *argptr = p; | |
1814 | ||
94cd26f8 | 1815 | return file_symtab; |
f3c39e76 DC |
1816 | } |
1817 | ||
9ef07c8c TT |
1818 | /* Look up a function symbol in *ARGPTR. If found, advance *ARGPTR |
1819 | and return the symbol. If not found, return NULL. */ | |
1820 | ||
1821 | static struct symbol * | |
1822 | find_function_symbol (char **argptr, char *p, int is_quote_enclosed) | |
1823 | { | |
1824 | char *p1; | |
1825 | char *copy; | |
1826 | struct symbol *function_symbol; | |
1827 | ||
1828 | p1 = p; | |
1829 | while (p != *argptr && p[-1] == ' ') | |
1830 | --p; | |
1831 | if ((*p == '"') && is_quote_enclosed) | |
1832 | --p; | |
1833 | copy = (char *) alloca (p - *argptr + 1); | |
1834 | memcpy (copy, *argptr, p - *argptr); | |
1835 | /* It may have the ending quote right after the file name. */ | |
1836 | if ((is_quote_enclosed && copy[p - *argptr - 1] == '"') | |
1837 | || copy[p - *argptr - 1] == '\'') | |
1838 | copy[p - *argptr - 1] = 0; | |
1839 | else | |
1840 | copy[p - *argptr] = 0; | |
1841 | ||
1842 | function_symbol = lookup_symbol (copy, get_selected_block (0), | |
1843 | VAR_DOMAIN, 0); | |
1844 | if (!function_symbol || SYMBOL_CLASS (function_symbol) != LOC_BLOCK) | |
1845 | return NULL; | |
1846 | ||
1847 | /* Discard the file name from the arg. */ | |
1848 | p = p1 + 1; | |
1849 | while (*p == ' ' || *p == '\t') | |
1850 | p++; | |
1851 | *argptr = p; | |
1852 | ||
1853 | return function_symbol; | |
1854 | } | |
1855 | ||
84fba31b DC |
1856 | \f |
1857 | ||
1858 | /* This decodes a line where the argument is all digits (possibly | |
1859 | preceded by a sign). Q should point to the end of those digits; | |
1860 | the other arguments are as usual. */ | |
1861 | ||
1862 | static struct symtabs_and_lines | |
1863 | decode_all_digits (char **argptr, struct symtab *default_symtab, | |
7efd8fc2 | 1864 | int default_line, struct linespec_result *canonical, |
88d262ca | 1865 | struct symtab *file_symtab, char *q) |
84fba31b DC |
1866 | |
1867 | { | |
1868 | struct symtabs_and_lines values; | |
1869 | struct symtab_and_line val; | |
1870 | ||
1871 | enum sign | |
1872 | { | |
1873 | none, plus, minus | |
1874 | } | |
1875 | sign = none; | |
1876 | ||
1877 | /* We might need a canonical line spec if no file was specified. */ | |
46be51c4 | 1878 | int need_canonical = (file_symtab == NULL) ? 1 : 0; |
84fba31b DC |
1879 | |
1880 | init_sal (&val); | |
1881 | ||
6c95b8df PA |
1882 | val.pspace = current_program_space; |
1883 | ||
84fba31b DC |
1884 | /* This is where we need to make sure that we have good defaults. |
1885 | We must guarantee that this section of code is never executed | |
1886 | when we are called with just a function name, since | |
1887 | set_default_source_symtab_and_line uses | |
a04257e6 | 1888 | select_source_symtab that calls us with such an argument. */ |
84fba31b | 1889 | |
88d262ca | 1890 | if (file_symtab == 0 && default_symtab == 0) |
84fba31b | 1891 | { |
a04257e6 | 1892 | /* Make sure we have at least a default source file. */ |
84fba31b DC |
1893 | set_default_source_symtab_and_line (); |
1894 | initialize_defaults (&default_symtab, &default_line); | |
1895 | } | |
1896 | ||
1897 | if (**argptr == '+') | |
1898 | sign = plus, (*argptr)++; | |
1899 | else if (**argptr == '-') | |
1900 | sign = minus, (*argptr)++; | |
1901 | val.line = atoi (*argptr); | |
1902 | switch (sign) | |
1903 | { | |
1904 | case plus: | |
1905 | if (q == *argptr) | |
1906 | val.line = 5; | |
88d262ca | 1907 | if (file_symtab == 0) |
84fba31b DC |
1908 | val.line = default_line + val.line; |
1909 | break; | |
1910 | case minus: | |
1911 | if (q == *argptr) | |
1912 | val.line = 15; | |
88d262ca | 1913 | if (file_symtab == 0) |
84fba31b DC |
1914 | val.line = default_line - val.line; |
1915 | else | |
1916 | val.line = 1; | |
1917 | break; | |
1918 | case none: | |
1919 | break; /* No need to adjust val.line. */ | |
1920 | } | |
1921 | ||
1922 | while (*q == ' ' || *q == '\t') | |
1923 | q++; | |
1924 | *argptr = q; | |
88d262ca DC |
1925 | if (file_symtab == 0) |
1926 | file_symtab = default_symtab; | |
84fba31b DC |
1927 | |
1928 | /* It is possible that this source file has more than one symtab, | |
1929 | and that the new line number specification has moved us from the | |
88d262ca DC |
1930 | default (in file_symtab) to a new one. */ |
1931 | val.symtab = find_line_symtab (file_symtab, val.line, NULL, NULL); | |
84fba31b | 1932 | if (val.symtab == 0) |
88d262ca | 1933 | val.symtab = file_symtab; |
84fba31b | 1934 | |
6c95b8df | 1935 | val.pspace = SYMTAB_PSPACE (val.symtab); |
84fba31b DC |
1936 | val.pc = 0; |
1937 | values.sals = (struct symtab_and_line *) | |
1938 | xmalloc (sizeof (struct symtab_and_line)); | |
1939 | values.sals[0] = val; | |
1940 | values.nelts = 1; | |
1941 | if (need_canonical) | |
1942 | build_canonical_line_spec (values.sals, NULL, canonical); | |
ed0616c6 | 1943 | values.sals[0].explicit_line = 1; |
84fba31b DC |
1944 | return values; |
1945 | } | |
f3c39e76 | 1946 | |
614b3b14 DC |
1947 | \f |
1948 | ||
14e91ac5 DC |
1949 | /* Decode a linespec starting with a dollar sign. */ |
1950 | ||
1951 | static struct symtabs_and_lines | |
1952 | decode_dollar (char *copy, int funfirstline, struct symtab *default_symtab, | |
7efd8fc2 | 1953 | struct linespec_result *canonical, struct symtab *file_symtab) |
14e91ac5 | 1954 | { |
4fa62494 | 1955 | LONGEST valx; |
14e91ac5 DC |
1956 | int index = 0; |
1957 | int need_canonical = 0; | |
1958 | struct symtabs_and_lines values; | |
1959 | struct symtab_and_line val; | |
1960 | char *p; | |
1961 | struct symbol *sym; | |
14e91ac5 DC |
1962 | struct minimal_symbol *msymbol; |
1963 | ||
1964 | p = (copy[1] == '$') ? copy + 2 : copy + 1; | |
1965 | while (*p >= '0' && *p <= '9') | |
1966 | p++; | |
a04257e6 | 1967 | if (!*p) /* Reached end of token without hitting non-digit. */ |
14e91ac5 | 1968 | { |
a04257e6 | 1969 | /* We have a value history reference. */ |
4fa62494 | 1970 | struct value *val_history; |
e0881a8e | 1971 | |
14e91ac5 | 1972 | sscanf ((copy[1] == '$') ? copy + 2 : copy + 1, "%d", &index); |
4fa62494 UW |
1973 | val_history = access_value_history ((copy[1] == '$') ? -index : index); |
1974 | if (TYPE_CODE (value_type (val_history)) != TYPE_CODE_INT) | |
3e43a32a MS |
1975 | error (_("History values used in line " |
1976 | "specs must have integer values.")); | |
4fa62494 | 1977 | valx = value_as_long (val_history); |
14e91ac5 DC |
1978 | } |
1979 | else | |
1980 | { | |
1981 | /* Not all digits -- may be user variable/function or a | |
a04257e6 | 1982 | convenience variable. */ |
14e91ac5 | 1983 | |
a04257e6 | 1984 | /* Look up entire name as a symbol first. */ |
2570f2b7 | 1985 | sym = lookup_symbol (copy, 0, VAR_DOMAIN, 0); |
46be51c4 | 1986 | file_symtab = (struct symtab *) NULL; |
14e91ac5 DC |
1987 | need_canonical = 1; |
1988 | /* Symbol was found --> jump to normal symbol processing. */ | |
1989 | if (sym) | |
9ef07c8c | 1990 | return symbol_found (funfirstline, canonical, copy, sym, NULL, NULL); |
14e91ac5 | 1991 | |
a04257e6 | 1992 | /* If symbol was not found, look in minimal symbol tables. */ |
14e91ac5 | 1993 | msymbol = lookup_minimal_symbol (copy, NULL, NULL); |
a04257e6 | 1994 | /* Min symbol was found --> jump to minsym processing. */ |
14e91ac5 DC |
1995 | if (msymbol) |
1996 | return minsym_found (funfirstline, msymbol); | |
1997 | ||
a04257e6 | 1998 | /* Not a user variable or function -- must be convenience variable. */ |
4fa62494 | 1999 | if (!get_internalvar_integer (lookup_internalvar (copy + 1), &valx)) |
3e43a32a MS |
2000 | error (_("Convenience variables used in line " |
2001 | "specs must have integer values.")); | |
14e91ac5 DC |
2002 | } |
2003 | ||
2004 | init_sal (&val); | |
2005 | ||
a04257e6 | 2006 | /* Either history value or convenience value from above, in valx. */ |
88d262ca | 2007 | val.symtab = file_symtab ? file_symtab : default_symtab; |
4fa62494 | 2008 | val.line = valx; |
14e91ac5 | 2009 | val.pc = 0; |
6c95b8df | 2010 | val.pspace = current_program_space; |
14e91ac5 DC |
2011 | |
2012 | values.sals = (struct symtab_and_line *) xmalloc (sizeof val); | |
2013 | values.sals[0] = val; | |
2014 | values.nelts = 1; | |
2015 | ||
2016 | if (need_canonical) | |
2017 | build_canonical_line_spec (values.sals, NULL, canonical); | |
2018 | ||
2019 | return values; | |
2020 | } | |
2021 | ||
bca02a8a DC |
2022 | \f |
2023 | ||
0f5238ed TT |
2024 | /* A helper for decode_line_1 that tries to find a label. The label |
2025 | is searched for in the current block. | |
9ef07c8c TT |
2026 | FUNCTION_SYMBOL is the enclosing function; or NULL if none |
2027 | specified. | |
0f5238ed TT |
2028 | COPY is the name of the label to find. |
2029 | CANONICAL is the same as the "canonical" argument to decode_line_1. | |
2030 | RESULT is a pointer to a symtabs_and_lines structure which will be | |
2031 | filled in on success. | |
2032 | This function returns 1 if a label was found, 0 otherwise. */ | |
2033 | ||
2034 | static int | |
9ef07c8c TT |
2035 | decode_label (struct symbol *function_symbol, char *copy, |
2036 | struct linespec_result *canonical, | |
7efd8fc2 | 2037 | struct symtabs_and_lines *result) |
0f5238ed TT |
2038 | { |
2039 | struct symbol *sym; | |
9ef07c8c TT |
2040 | struct block *block; |
2041 | ||
2042 | if (function_symbol) | |
2043 | block = SYMBOL_BLOCK_VALUE (function_symbol); | |
2044 | else | |
2045 | { | |
2046 | block = get_selected_block (0); | |
2047 | for (; | |
2048 | block && !BLOCK_FUNCTION (block); | |
2049 | block = BLOCK_SUPERBLOCK (block)) | |
2050 | ; | |
2051 | if (!block) | |
2052 | return 0; | |
2053 | function_symbol = BLOCK_FUNCTION (block); | |
2054 | } | |
0f5238ed | 2055 | |
9ef07c8c | 2056 | sym = lookup_symbol (copy, block, LABEL_DOMAIN, 0); |
0f5238ed TT |
2057 | |
2058 | if (sym != NULL) | |
9ef07c8c | 2059 | *result = symbol_found (0, canonical, copy, sym, NULL, function_symbol); |
0f5238ed TT |
2060 | |
2061 | return sym != NULL; | |
2062 | } | |
2063 | ||
88d262ca | 2064 | /* Decode a linespec that's a variable. If FILE_SYMTAB is non-NULL, |
58438ac1 | 2065 | look in that symtab's static variables first. */ |
bca02a8a DC |
2066 | |
2067 | static struct symtabs_and_lines | |
7efd8fc2 TT |
2068 | decode_variable (char *copy, int funfirstline, |
2069 | struct linespec_result *canonical, | |
58438ac1 | 2070 | struct symtab *file_symtab) |
bca02a8a DC |
2071 | { |
2072 | struct symbol *sym; | |
bca02a8a DC |
2073 | struct minimal_symbol *msymbol; |
2074 | ||
2075 | sym = lookup_symbol (copy, | |
88d262ca DC |
2076 | (file_symtab |
2077 | ? BLOCKVECTOR_BLOCK (BLOCKVECTOR (file_symtab), | |
2078 | STATIC_BLOCK) | |
bca02a8a | 2079 | : get_selected_block (0)), |
2570f2b7 | 2080 | VAR_DOMAIN, 0); |
bca02a8a DC |
2081 | |
2082 | if (sym != NULL) | |
9ef07c8c | 2083 | return symbol_found (funfirstline, canonical, copy, sym, file_symtab, NULL); |
bca02a8a DC |
2084 | |
2085 | msymbol = lookup_minimal_symbol (copy, NULL, NULL); | |
2086 | ||
2087 | if (msymbol != NULL) | |
2088 | return minsym_found (funfirstline, msymbol); | |
2089 | ||
b96e2927 PA |
2090 | if (!have_full_symbols () |
2091 | && !have_partial_symbols () | |
2092 | && !have_minimal_symbols ()) | |
2093 | throw_error (NOT_FOUND_ERROR, | |
2094 | _("No symbol table is loaded. Use the \"file\" command.")); | |
109c3e39 | 2095 | throw_error (NOT_FOUND_ERROR, _("Function \"%s\" not defined."), copy); |
bca02a8a DC |
2096 | } |
2097 | ||
2098 | ||
14e91ac5 DC |
2099 | \f |
2100 | ||
413dad4d DC |
2101 | /* Now come some functions that are called from multiple places within |
2102 | decode_line_1. */ | |
2103 | ||
2104 | /* We've found a symbol SYM to associate with our linespec; build a | |
2105 | corresponding struct symtabs_and_lines. */ | |
2106 | ||
2107 | static struct symtabs_and_lines | |
7efd8fc2 | 2108 | symbol_found (int funfirstline, struct linespec_result *canonical, char *copy, |
9ef07c8c TT |
2109 | struct symbol *sym, struct symtab *file_symtab, |
2110 | struct symbol *function_symbol) | |
413dad4d DC |
2111 | { |
2112 | struct symtabs_and_lines values; | |
2113 | ||
2114 | if (SYMBOL_CLASS (sym) == LOC_BLOCK) | |
50641945 | 2115 | { |
1777feb0 | 2116 | /* Arg is the name of a function. */ |
50641945 FN |
2117 | values.sals = (struct symtab_and_line *) |
2118 | xmalloc (sizeof (struct symtab_and_line)); | |
413dad4d DC |
2119 | values.sals[0] = find_function_start_sal (sym, funfirstline); |
2120 | values.nelts = 1; | |
2121 | ||
2122 | /* Don't use the SYMBOL_LINE; if used at all it points to | |
2123 | the line containing the parameters or thereabouts, not | |
2124 | the first line of code. */ | |
2125 | ||
2126 | /* We might need a canonical line spec if it is a static | |
2127 | function. */ | |
88d262ca | 2128 | if (file_symtab == 0) |
50641945 | 2129 | { |
2570f2b7 | 2130 | struct blockvector *bv = BLOCKVECTOR (SYMBOL_SYMTAB (sym)); |
413dad4d | 2131 | struct block *b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); |
e0881a8e | 2132 | |
94af9270 | 2133 | if (lookup_block_symbol (b, copy, VAR_DOMAIN) != NULL) |
413dad4d | 2134 | build_canonical_line_spec (values.sals, copy, canonical); |
50641945 | 2135 | } |
50641945 FN |
2136 | return values; |
2137 | } | |
413dad4d DC |
2138 | else |
2139 | { | |
62853458 | 2140 | if (SYMBOL_CLASS (sym) == LOC_LABEL && SYMBOL_VALUE_ADDRESS (sym) != 0) |
413dad4d DC |
2141 | { |
2142 | /* We know its line number. */ | |
2143 | values.sals = (struct symtab_and_line *) | |
2144 | xmalloc (sizeof (struct symtab_and_line)); | |
2145 | values.nelts = 1; | |
9ef07c8c | 2146 | init_sal (&values.sals[0]); |
2570f2b7 | 2147 | values.sals[0].symtab = SYMBOL_SYMTAB (sym); |
413dad4d | 2148 | values.sals[0].line = SYMBOL_LINE (sym); |
9ef07c8c | 2149 | values.sals[0].pc = SYMBOL_VALUE_ADDRESS (sym); |
0f5238ed | 2150 | values.sals[0].pspace = SYMTAB_PSPACE (SYMBOL_SYMTAB (sym)); |
9ef07c8c TT |
2151 | values.sals[0].explicit_pc = 1; |
2152 | ||
2153 | if (canonical) | |
2154 | { | |
2155 | canonical->special_display = 1; | |
2156 | canonical->canonical = xmalloc (sizeof (char *)); | |
2157 | canonical->canonical[0] | |
2158 | = xstrprintf ("%s:%s", | |
2159 | SYMBOL_NATURAL_NAME (function_symbol), | |
2160 | SYMBOL_NATURAL_NAME (sym)); | |
2161 | } | |
2162 | ||
413dad4d DC |
2163 | return values; |
2164 | } | |
62853458 TT |
2165 | else if (funfirstline) |
2166 | error (_("\"%s\" is not a function"), copy); | |
2167 | else if (SYMBOL_LINE (sym) != 0) | |
2168 | { | |
2169 | /* We know its line number. */ | |
2170 | values.sals = (struct symtab_and_line *) | |
2171 | xmalloc (sizeof (struct symtab_and_line)); | |
2172 | values.nelts = 1; | |
2173 | memset (&values.sals[0], 0, sizeof (values.sals[0])); | |
2174 | values.sals[0].symtab = SYMBOL_SYMTAB (sym); | |
2175 | values.sals[0].line = SYMBOL_LINE (sym); | |
2176 | values.sals[0].pspace = SYMTAB_PSPACE (SYMBOL_SYMTAB (sym)); | |
2177 | return values; | |
2178 | } | |
413dad4d DC |
2179 | else |
2180 | /* This can happen if it is compiled with a compiler which doesn't | |
2181 | put out line numbers for variables. */ | |
2182 | /* FIXME: Shouldn't we just set .line and .symtab to zero | |
2183 | and return? For example, "info line foo" could print | |
2184 | the address. */ | |
8a3fe4f8 | 2185 | error (_("Line number not known for symbol \"%s\""), copy); |
413dad4d DC |
2186 | } |
2187 | } | |
50641945 | 2188 | |
413dad4d DC |
2189 | /* We've found a minimal symbol MSYMBOL to associate with our |
2190 | linespec; build a corresponding struct symtabs_and_lines. */ | |
50641945 | 2191 | |
413dad4d DC |
2192 | static struct symtabs_and_lines |
2193 | minsym_found (int funfirstline, struct minimal_symbol *msymbol) | |
2194 | { | |
bccdca4a UW |
2195 | struct objfile *objfile = msymbol_objfile (msymbol); |
2196 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
413dad4d | 2197 | struct symtabs_and_lines values; |
bccdca4a | 2198 | CORE_ADDR pc; |
413dad4d DC |
2199 | |
2200 | values.sals = (struct symtab_and_line *) | |
2201 | xmalloc (sizeof (struct symtab_and_line)); | |
2202 | values.sals[0] = find_pc_sect_line (SYMBOL_VALUE_ADDRESS (msymbol), | |
714835d5 UW |
2203 | (struct obj_section *) 0, 0); |
2204 | values.sals[0].section = SYMBOL_OBJ_SECTION (msymbol); | |
bccdca4a UW |
2205 | |
2206 | /* The minimal symbol might point to a function descriptor; | |
2207 | resolve it to the actual code address instead. */ | |
2208 | pc = gdbarch_convert_from_func_ptr_addr (gdbarch, | |
2209 | values.sals[0].pc, | |
2210 | ¤t_target); | |
2211 | if (pc != values.sals[0].pc) | |
2212 | values.sals[0] = find_pc_sect_line (pc, NULL, 0); | |
2213 | ||
413dad4d | 2214 | if (funfirstline) |
059acae7 | 2215 | skip_prologue_sal (&values.sals[0]); |
e48883f7 | 2216 | |
413dad4d DC |
2217 | values.nelts = 1; |
2218 | return values; | |
50641945 | 2219 | } |
7efd8fc2 TT |
2220 | |
2221 | void | |
2222 | init_linespec_result (struct linespec_result *lr) | |
2223 | { | |
2224 | memset (lr, 0, sizeof (*lr)); | |
2225 | } |