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Commit | Line | Data |
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c906108c | 1 | /* List lines of source files for GDB, the GNU debugger. |
ecd75fc8 | 2 | Copyright (C) 1986-2014 Free Software Foundation, Inc. |
c906108c | 3 | |
c5aa993b | 4 | This file is part of GDB. |
c906108c | 5 | |
c5aa993b JM |
6 | This program is free software; you can redistribute it and/or modify |
7 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 8 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 9 | (at your option) any later version. |
c906108c | 10 | |
c5aa993b JM |
11 | This program is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
c906108c | 15 | |
c5aa993b | 16 | You should have received a copy of the GNU General Public License |
a9762ec7 | 17 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
18 | |
19 | #include "defs.h" | |
5af949e3 | 20 | #include "arch-utils.h" |
c906108c SS |
21 | #include "symtab.h" |
22 | #include "expression.h" | |
23 | #include "language.h" | |
24 | #include "command.h" | |
c2c6d25f | 25 | #include "source.h" |
c906108c SS |
26 | #include "gdbcmd.h" |
27 | #include "frame.h" | |
28 | #include "value.h" | |
2f61ca93 | 29 | #include "gdb_assert.h" |
614c279d | 30 | #include "filestuff.h" |
c906108c SS |
31 | |
32 | #include <sys/types.h> | |
0e9f083f | 33 | #include <string.h> |
53ce3c39 | 34 | #include <sys/stat.h> |
c906108c | 35 | #include <fcntl.h> |
c906108c | 36 | #include "gdbcore.h" |
88987551 | 37 | #include "gdb_regex.h" |
c906108c SS |
38 | #include "symfile.h" |
39 | #include "objfiles.h" | |
40 | #include "annotate.h" | |
41 | #include "gdbtypes.h" | |
c5f0f3d0 | 42 | #include "linespec.h" |
fe4e3eb8 | 43 | #include "filenames.h" /* for DOSish file names */ |
d75b5104 | 44 | #include "completer.h" |
8b93c638 | 45 | #include "ui-out.h" |
dbda9972 | 46 | #include "readline/readline.h" |
c906108c | 47 | |
c906108c SS |
48 | #define OPEN_MODE (O_RDONLY | O_BINARY) |
49 | #define FDOPEN_MODE FOPEN_RB | |
50 | ||
c378eb4e | 51 | /* Prototypes for exported functions. */ |
c906108c | 52 | |
a14ed312 | 53 | void _initialize_source (void); |
c906108c | 54 | |
c378eb4e | 55 | /* Prototypes for local functions. */ |
c906108c | 56 | |
a14ed312 | 57 | static int get_filename_and_charpos (struct symtab *, char **); |
c906108c | 58 | |
a14ed312 | 59 | static void reverse_search_command (char *, int); |
c906108c | 60 | |
a14ed312 | 61 | static void forward_search_command (char *, int); |
c906108c | 62 | |
a14ed312 | 63 | static void line_info (char *, int); |
c906108c | 64 | |
a14ed312 | 65 | static void source_info (char *, int); |
c906108c | 66 | |
c906108c SS |
67 | /* Path of directories to search for source files. |
68 | Same format as the PATH environment variable's value. */ | |
69 | ||
70 | char *source_path; | |
71 | ||
2f61ca93 JB |
72 | /* Support for source path substitution commands. */ |
73 | ||
74 | struct substitute_path_rule | |
75 | { | |
76 | char *from; | |
77 | char *to; | |
78 | struct substitute_path_rule *next; | |
79 | }; | |
80 | ||
81 | static struct substitute_path_rule *substitute_path_rules = NULL; | |
82 | ||
c906108c SS |
83 | /* Symtab of default file for listing lines of. */ |
84 | ||
0378c332 | 85 | static struct symtab *current_source_symtab; |
c906108c SS |
86 | |
87 | /* Default next line to list. */ | |
88 | ||
0378c332 | 89 | static int current_source_line; |
c906108c | 90 | |
6c95b8df PA |
91 | static struct program_space *current_source_pspace; |
92 | ||
c906108c SS |
93 | /* Default number of lines to print with commands like "list". |
94 | This is based on guessing how many long (i.e. more than chars_per_line | |
95 | characters) lines there will be. To be completely correct, "list" | |
96 | and friends should be rewritten to count characters and see where | |
97 | things are wrapping, but that would be a fair amount of work. */ | |
98 | ||
99 | int lines_to_list = 10; | |
920d2a44 AC |
100 | static void |
101 | show_lines_to_list (struct ui_file *file, int from_tty, | |
102 | struct cmd_list_element *c, const char *value) | |
103 | { | |
3e43a32a MS |
104 | fprintf_filtered (file, |
105 | _("Number of source lines gdb " | |
106 | "will list by default is %s.\n"), | |
920d2a44 AC |
107 | value); |
108 | } | |
c906108c | 109 | |
1b56eb55 JK |
110 | /* Possible values of 'set filename-display'. */ |
111 | static const char filename_display_basename[] = "basename"; | |
112 | static const char filename_display_relative[] = "relative"; | |
113 | static const char filename_display_absolute[] = "absolute"; | |
114 | ||
115 | static const char *const filename_display_kind_names[] = { | |
116 | filename_display_basename, | |
117 | filename_display_relative, | |
118 | filename_display_absolute, | |
119 | NULL | |
120 | }; | |
121 | ||
122 | static const char *filename_display_string = filename_display_relative; | |
123 | ||
124 | static void | |
125 | show_filename_display_string (struct ui_file *file, int from_tty, | |
126 | struct cmd_list_element *c, const char *value) | |
127 | { | |
128 | fprintf_filtered (file, _("Filenames are displayed as \"%s\".\n"), value); | |
129 | } | |
130 | ||
c906108c SS |
131 | /* Line number of last line printed. Default for various commands. |
132 | current_source_line is usually, but not always, the same as this. */ | |
133 | ||
134 | static int last_line_listed; | |
135 | ||
5166082f PA |
136 | /* First line number listed by last listing command. If 0, then no |
137 | source lines have yet been listed since the last time the current | |
138 | source line was changed. */ | |
c906108c SS |
139 | |
140 | static int first_line_listed; | |
141 | ||
142 | /* Saves the name of the last source file visited and a possible error code. | |
c378eb4e | 143 | Used to prevent repeating annoying "No such file or directories" msgs. */ |
c906108c SS |
144 | |
145 | static struct symtab *last_source_visited = NULL; | |
146 | static int last_source_error = 0; | |
c906108c | 147 | \f |
0378c332 FN |
148 | /* Return the first line listed by print_source_lines. |
149 | Used by command interpreters to request listing from | |
c378eb4e | 150 | a previous point. */ |
0378c332 FN |
151 | |
152 | int | |
153 | get_first_line_listed (void) | |
154 | { | |
155 | return first_line_listed; | |
156 | } | |
157 | ||
5166082f PA |
158 | /* Clear line listed range. This makes the next "list" center the |
159 | printed source lines around the current source line. */ | |
160 | ||
161 | static void | |
162 | clear_lines_listed_range (void) | |
163 | { | |
164 | first_line_listed = 0; | |
165 | last_line_listed = 0; | |
166 | } | |
167 | ||
0378c332 FN |
168 | /* Return the default number of lines to print with commands like the |
169 | cli "list". The caller of print_source_lines must use this to | |
170 | calculate the end line and use it in the call to print_source_lines | |
c378eb4e | 171 | as it does not automatically use this value. */ |
0378c332 FN |
172 | |
173 | int | |
174 | get_lines_to_list (void) | |
175 | { | |
176 | return lines_to_list; | |
177 | } | |
178 | ||
179 | /* Return the current source file for listing and next line to list. | |
c378eb4e | 180 | NOTE: The returned sal pc and end fields are not valid. */ |
0378c332 FN |
181 | |
182 | struct symtab_and_line | |
183 | get_current_source_symtab_and_line (void) | |
184 | { | |
245c7f48 | 185 | struct symtab_and_line cursal = { 0 }; |
0378c332 | 186 | |
6c95b8df | 187 | cursal.pspace = current_source_pspace; |
0378c332 FN |
188 | cursal.symtab = current_source_symtab; |
189 | cursal.line = current_source_line; | |
53cb0458 FN |
190 | cursal.pc = 0; |
191 | cursal.end = 0; | |
0378c332 FN |
192 | |
193 | return cursal; | |
194 | } | |
195 | ||
53cb0458 FN |
196 | /* If the current source file for listing is not set, try and get a default. |
197 | Usually called before get_current_source_symtab_and_line() is called. | |
0378c332 | 198 | It may err out if a default cannot be determined. |
53cb0458 FN |
199 | We must be cautious about where it is called, as it can recurse as the |
200 | process of determining a new default may call the caller! | |
201 | Use get_current_source_symtab_and_line only to get whatever | |
c378eb4e | 202 | we have without erroring out or trying to get a default. */ |
0378c332 | 203 | |
53cb0458 FN |
204 | void |
205 | set_default_source_symtab_and_line (void) | |
0378c332 | 206 | { |
0378c332 | 207 | if (!have_full_symbols () && !have_partial_symbols ()) |
8a3fe4f8 | 208 | error (_("No symbol table is loaded. Use the \"file\" command.")); |
0378c332 | 209 | |
c378eb4e | 210 | /* Pull in a current source symtab if necessary. */ |
0378c332 FN |
211 | if (current_source_symtab == 0) |
212 | select_source_symtab (0); | |
0378c332 FN |
213 | } |
214 | ||
215 | /* Return the current default file for listing and next line to list | |
216 | (the returned sal pc and end fields are not valid.) | |
53cb0458 | 217 | and set the current default to whatever is in SAL. |
c378eb4e | 218 | NOTE: The returned sal pc and end fields are not valid. */ |
0378c332 FN |
219 | |
220 | struct symtab_and_line | |
53cb0458 | 221 | set_current_source_symtab_and_line (const struct symtab_and_line *sal) |
0378c332 | 222 | { |
245c7f48 | 223 | struct symtab_and_line cursal = { 0 }; |
6c95b8df PA |
224 | |
225 | cursal.pspace = current_source_pspace; | |
0378c332 FN |
226 | cursal.symtab = current_source_symtab; |
227 | cursal.line = current_source_line; | |
6c95b8df PA |
228 | cursal.pc = 0; |
229 | cursal.end = 0; | |
0378c332 | 230 | |
6c95b8df | 231 | current_source_pspace = sal->pspace; |
0378c332 FN |
232 | current_source_symtab = sal->symtab; |
233 | current_source_line = sal->line; | |
6c95b8df | 234 | |
5166082f PA |
235 | /* Force the next "list" to center around the current line. */ |
236 | clear_lines_listed_range (); | |
237 | ||
0378c332 FN |
238 | return cursal; |
239 | } | |
240 | ||
c378eb4e | 241 | /* Reset any information stored about a default file and line to print. */ |
0378c332 FN |
242 | |
243 | void | |
244 | clear_current_source_symtab_and_line (void) | |
245 | { | |
246 | current_source_symtab = 0; | |
247 | current_source_line = 0; | |
248 | } | |
c5aa993b | 249 | |
c906108c SS |
250 | /* Set the source file default for the "list" command to be S. |
251 | ||
252 | If S is NULL, and we don't have a default, find one. This | |
253 | should only be called when the user actually tries to use the | |
254 | default, since we produce an error if we can't find a reasonable | |
255 | default. Also, since this can cause symbols to be read, doing it | |
256 | before we need to would make things slower than necessary. */ | |
257 | ||
258 | void | |
aa1ee363 | 259 | select_source_symtab (struct symtab *s) |
c906108c SS |
260 | { |
261 | struct symtabs_and_lines sals; | |
262 | struct symtab_and_line sal; | |
c906108c | 263 | struct objfile *ofp; |
c5aa993b | 264 | |
c906108c SS |
265 | if (s) |
266 | { | |
267 | current_source_symtab = s; | |
268 | current_source_line = 1; | |
6c95b8df | 269 | current_source_pspace = SYMTAB_PSPACE (s); |
c906108c SS |
270 | return; |
271 | } | |
272 | ||
273 | if (current_source_symtab) | |
274 | return; | |
275 | ||
276 | /* Make the default place to list be the function `main' | |
277 | if one exists. */ | |
2570f2b7 | 278 | if (lookup_symbol (main_name (), 0, VAR_DOMAIN, 0)) |
c906108c | 279 | { |
39cf75f7 DE |
280 | sals = decode_line_with_current_source (main_name (), |
281 | DECODE_LINE_FUNFIRSTLINE); | |
c906108c | 282 | sal = sals.sals[0]; |
b8c9b27d | 283 | xfree (sals.sals); |
6c95b8df | 284 | current_source_pspace = sal.pspace; |
c906108c SS |
285 | current_source_symtab = sal.symtab; |
286 | current_source_line = max (sal.line - (lines_to_list - 1), 1); | |
287 | if (current_source_symtab) | |
c5aa993b | 288 | return; |
c906108c | 289 | } |
c5aa993b | 290 | |
8340a3fb LM |
291 | /* Alright; find the last file in the symtab list (ignoring .h's |
292 | and namespace symtabs). */ | |
c906108c SS |
293 | |
294 | current_source_line = 1; | |
295 | ||
6c95b8df | 296 | ALL_OBJFILES (ofp) |
c906108c | 297 | { |
c5aa993b | 298 | for (s = ofp->symtabs; s; s = s->next) |
c906108c | 299 | { |
591e78ff | 300 | const char *name = s->filename; |
c906108c | 301 | int len = strlen (name); |
433759f7 | 302 | |
8340a3fb LM |
303 | if (!(len > 2 && (strcmp (&name[len - 2], ".h") == 0 |
304 | || strcmp (name, "<<C++-namespaces>>") == 0))) | |
6c95b8df PA |
305 | { |
306 | current_source_pspace = current_program_space; | |
307 | current_source_symtab = s; | |
308 | } | |
c906108c SS |
309 | } |
310 | } | |
6c95b8df | 311 | |
c906108c SS |
312 | if (current_source_symtab) |
313 | return; | |
314 | ||
6c95b8df | 315 | ALL_OBJFILES (ofp) |
ccefe4c4 TT |
316 | { |
317 | if (ofp->sf) | |
318 | s = ofp->sf->qf->find_last_source_symtab (ofp); | |
319 | if (s) | |
320 | current_source_symtab = s; | |
321 | } | |
c906108c SS |
322 | if (current_source_symtab) |
323 | return; | |
324 | ||
8a3fe4f8 | 325 | error (_("Can't find a default source file")); |
c906108c SS |
326 | } |
327 | \f | |
99e7ae30 DE |
328 | /* Handler for "set directories path-list" command. |
329 | "set dir mumble" doesn't prepend paths, it resets the entire | |
330 | path list. The theory is that set(show(dir)) should be a no-op. */ | |
331 | ||
332 | static void | |
333 | set_directories_command (char *args, int from_tty, struct cmd_list_element *c) | |
334 | { | |
335 | /* This is the value that was set. | |
336 | It needs to be processed to maintain $cdir:$cwd and remove dups. */ | |
337 | char *set_path = source_path; | |
338 | ||
339 | /* We preserve the invariant that $cdir:$cwd begins life at the end of | |
340 | the list by calling init_source_path. If they appear earlier in | |
341 | SET_PATH then mod_path will move them appropriately. | |
342 | mod_path will also remove duplicates. */ | |
343 | init_source_path (); | |
344 | if (*set_path != '\0') | |
345 | mod_path (set_path, &source_path); | |
346 | ||
347 | xfree (set_path); | |
348 | } | |
349 | ||
350 | /* Print the list of source directories. | |
351 | This is used by the "ld" command, so it has the signature of a command | |
352 | function. */ | |
353 | ||
c906108c | 354 | static void |
99e7ae30 | 355 | show_directories_1 (char *ignore, int from_tty) |
c906108c SS |
356 | { |
357 | puts_filtered ("Source directories searched: "); | |
358 | puts_filtered (source_path); | |
359 | puts_filtered ("\n"); | |
360 | } | |
361 | ||
99e7ae30 DE |
362 | /* Handler for "show directories" command. */ |
363 | ||
364 | static void | |
365 | show_directories_command (struct ui_file *file, int from_tty, | |
366 | struct cmd_list_element *c, const char *value) | |
367 | { | |
368 | show_directories_1 (NULL, from_tty); | |
369 | } | |
370 | ||
00174a86 TT |
371 | /* Forget line positions and file names for the symtabs in a |
372 | particular objfile. */ | |
373 | ||
374 | void | |
375 | forget_cached_source_info_for_objfile (struct objfile *objfile) | |
376 | { | |
377 | struct symtab *s; | |
378 | ||
379 | ALL_OBJFILE_SYMTABS (objfile, s) | |
380 | { | |
381 | if (s->line_charpos != NULL) | |
382 | { | |
383 | xfree (s->line_charpos); | |
384 | s->line_charpos = NULL; | |
385 | } | |
386 | if (s->fullname != NULL) | |
387 | { | |
388 | xfree (s->fullname); | |
389 | s->fullname = NULL; | |
390 | } | |
00174a86 | 391 | } |
6f809020 DE |
392 | |
393 | if (objfile->sf) | |
394 | objfile->sf->qf->forget_cached_source_info (objfile); | |
00174a86 TT |
395 | } |
396 | ||
c906108c SS |
397 | /* Forget what we learned about line positions in source files, and |
398 | which directories contain them; must check again now since files | |
399 | may be found in a different directory now. */ | |
400 | ||
401 | void | |
fba45db2 | 402 | forget_cached_source_info (void) |
c906108c | 403 | { |
6c95b8df | 404 | struct program_space *pspace; |
52f0bd74 | 405 | struct objfile *objfile; |
c906108c | 406 | |
6c95b8df PA |
407 | ALL_PSPACES (pspace) |
408 | ALL_PSPACE_OBJFILES (pspace, objfile) | |
c906108c | 409 | { |
00174a86 | 410 | forget_cached_source_info_for_objfile (objfile); |
c906108c | 411 | } |
c4e86dd4 DJ |
412 | |
413 | last_source_visited = NULL; | |
c906108c SS |
414 | } |
415 | ||
416 | void | |
fba45db2 | 417 | init_source_path (void) |
c906108c SS |
418 | { |
419 | char buf[20]; | |
420 | ||
08850b56 | 421 | xsnprintf (buf, sizeof (buf), "$cdir%c$cwd", DIRNAME_SEPARATOR); |
4fcf66da | 422 | source_path = xstrdup (buf); |
c906108c SS |
423 | forget_cached_source_info (); |
424 | } | |
425 | ||
426 | /* Add zero or more directories to the front of the source path. */ | |
c5aa993b | 427 | |
28da1647 | 428 | static void |
fba45db2 | 429 | directory_command (char *dirname, int from_tty) |
c906108c SS |
430 | { |
431 | dont_repeat (); | |
c378eb4e | 432 | /* FIXME, this goes to "delete dir"... */ |
c906108c SS |
433 | if (dirname == 0) |
434 | { | |
80618b99 | 435 | if (!from_tty || query (_("Reinitialize source path to empty? "))) |
c906108c | 436 | { |
b8c9b27d | 437 | xfree (source_path); |
c906108c SS |
438 | init_source_path (); |
439 | } | |
440 | } | |
441 | else | |
442 | { | |
443 | mod_path (dirname, &source_path); | |
c4e86dd4 | 444 | forget_cached_source_info (); |
c906108c SS |
445 | } |
446 | if (from_tty) | |
99e7ae30 | 447 | show_directories_1 ((char *) 0, from_tty); |
c906108c SS |
448 | } |
449 | ||
13d35ae5 AS |
450 | /* Add a path given with the -d command line switch. |
451 | This will not be quoted so we must not treat spaces as separators. */ | |
452 | ||
453 | void | |
454 | directory_switch (char *dirname, int from_tty) | |
455 | { | |
456 | add_path (dirname, &source_path, 0); | |
457 | } | |
458 | ||
c906108c SS |
459 | /* Add zero or more directories to the front of an arbitrary path. */ |
460 | ||
461 | void | |
fba45db2 | 462 | mod_path (char *dirname, char **which_path) |
c04e0a08 JJ |
463 | { |
464 | add_path (dirname, which_path, 1); | |
465 | } | |
466 | ||
467 | /* Workhorse of mod_path. Takes an extra argument to determine | |
468 | if dirname should be parsed for separators that indicate multiple | |
469 | directories. This allows for interfaces that pre-parse the dirname | |
470 | and allow specification of traditional separator characters such | |
c378eb4e | 471 | as space or tab. */ |
c04e0a08 JJ |
472 | |
473 | void | |
474 | add_path (char *dirname, char **which_path, int parse_separators) | |
c906108c SS |
475 | { |
476 | char *old = *which_path; | |
477 | int prefix = 0; | |
e4ab2fad JK |
478 | VEC (char_ptr) *dir_vec = NULL; |
479 | struct cleanup *back_to; | |
480 | int ix; | |
481 | char *name; | |
c906108c SS |
482 | |
483 | if (dirname == 0) | |
484 | return; | |
485 | ||
13d35ae5 AS |
486 | if (parse_separators) |
487 | { | |
e4ab2fad JK |
488 | char **argv, **argvp; |
489 | ||
13d35ae5 | 490 | /* This will properly parse the space and tab separators |
e4ab2fad | 491 | and any quotes that may exist. */ |
d1a41061 | 492 | argv = gdb_buildargv (dirname); |
13d35ae5 | 493 | |
e4ab2fad JK |
494 | for (argvp = argv; *argvp; argvp++) |
495 | dirnames_to_char_ptr_vec_append (&dir_vec, *argvp); | |
496 | ||
497 | freeargv (argv); | |
13d35ae5 AS |
498 | } |
499 | else | |
e4ab2fad JK |
500 | VEC_safe_push (char_ptr, dir_vec, xstrdup (dirname)); |
501 | back_to = make_cleanup_free_char_ptr_vec (dir_vec); | |
c906108c | 502 | |
e4ab2fad | 503 | for (ix = 0; VEC_iterate (char_ptr, dir_vec, ix, name); ++ix) |
c906108c | 504 | { |
aa1ee363 | 505 | char *p; |
c906108c SS |
506 | struct stat st; |
507 | ||
e4ab2fad JK |
508 | /* Spaces and tabs will have been removed by buildargv(). |
509 | NAME is the start of the directory. | |
510 | P is the '\0' following the end. */ | |
511 | p = name + strlen (name); | |
13d35ae5 AS |
512 | |
513 | while (!(IS_DIR_SEPARATOR (*name) && p <= name + 1) /* "/" */ | |
c3690141 | 514 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
7be570e7 | 515 | /* On MS-DOS and MS-Windows, h:\ is different from h: */ |
13d35ae5 | 516 | && !(p == name + 3 && name[1] == ':') /* "d:/" */ |
7be570e7 | 517 | #endif |
13d35ae5 | 518 | && IS_DIR_SEPARATOR (p[-1])) |
c378eb4e | 519 | /* Sigh. "foo/" => "foo" */ |
c906108c | 520 | --p; |
c906108c SS |
521 | *p = '\0'; |
522 | ||
7be570e7 | 523 | while (p > name && p[-1] == '.') |
c906108c SS |
524 | { |
525 | if (p - name == 1) | |
526 | { | |
527 | /* "." => getwd (). */ | |
528 | name = current_directory; | |
529 | goto append; | |
530 | } | |
fe4e3eb8 | 531 | else if (p > name + 1 && IS_DIR_SEPARATOR (p[-2])) |
c906108c SS |
532 | { |
533 | if (p - name == 2) | |
534 | { | |
535 | /* "/." => "/". */ | |
536 | *--p = '\0'; | |
537 | goto append; | |
538 | } | |
539 | else | |
540 | { | |
541 | /* "...foo/." => "...foo". */ | |
542 | p -= 2; | |
543 | *p = '\0'; | |
544 | continue; | |
545 | } | |
546 | } | |
547 | else | |
548 | break; | |
549 | } | |
550 | ||
551 | if (name[0] == '~') | |
552 | name = tilde_expand (name); | |
c3690141 | 553 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
fe4e3eb8 | 554 | else if (IS_ABSOLUTE_PATH (name) && p == name + 2) /* "d:" => "d:." */ |
1754f103 | 555 | name = concat (name, ".", (char *)NULL); |
7be570e7 | 556 | #endif |
fe4e3eb8 | 557 | else if (!IS_ABSOLUTE_PATH (name) && name[0] != '$') |
1754f103 | 558 | name = concat (current_directory, SLASH_STRING, name, (char *)NULL); |
c906108c SS |
559 | else |
560 | name = savestring (name, p - name); | |
b8c9b27d | 561 | make_cleanup (xfree, name); |
c906108c SS |
562 | |
563 | /* Unless it's a variable, check existence. */ | |
c5aa993b JM |
564 | if (name[0] != '$') |
565 | { | |
566 | /* These are warnings, not errors, since we don't want a | |
567 | non-existent directory in a .gdbinit file to stop processing | |
568 | of the .gdbinit file. | |
569 | ||
570 | Whether they get added to the path is more debatable. Current | |
571 | answer is yes, in case the user wants to go make the directory | |
572 | or whatever. If the directory continues to not exist/not be | |
573 | a directory/etc, then having them in the path should be | |
574 | harmless. */ | |
575 | if (stat (name, &st) < 0) | |
576 | { | |
577 | int save_errno = errno; | |
433759f7 | 578 | |
c5aa993b JM |
579 | fprintf_unfiltered (gdb_stderr, "Warning: "); |
580 | print_sys_errmsg (name, save_errno); | |
581 | } | |
582 | else if ((st.st_mode & S_IFMT) != S_IFDIR) | |
8a3fe4f8 | 583 | warning (_("%s is not a directory."), name); |
c5aa993b | 584 | } |
c906108c SS |
585 | |
586 | append: | |
587 | { | |
aa1ee363 | 588 | unsigned int len = strlen (name); |
5ee4ed9f | 589 | char tinybuf[2]; |
c906108c SS |
590 | |
591 | p = *which_path; | |
5e3f4fab | 592 | while (1) |
c906108c | 593 | { |
5e3f4fab EBM |
594 | /* FIXME: we should use realpath() or its work-alike |
595 | before comparing. Then all the code above which | |
596 | removes excess slashes and dots could simply go away. */ | |
597 | if (!filename_ncmp (p, name, len) | |
598 | && (p[len] == '\0' || p[len] == DIRNAME_SEPARATOR)) | |
599 | { | |
600 | /* Found it in the search path, remove old copy. */ | |
601 | if (p > *which_path) | |
602 | { | |
603 | /* Back over leading separator. */ | |
604 | p--; | |
605 | } | |
606 | if (prefix > p - *which_path) | |
607 | { | |
608 | /* Same dir twice in one cmd. */ | |
609 | goto skip_dup; | |
610 | } | |
611 | /* Copy from next '\0' or ':'. */ | |
612 | memmove (p, &p[len + 1], strlen (&p[len + 1]) + 1); | |
613 | } | |
614 | p = strchr (p, DIRNAME_SEPARATOR); | |
615 | if (p != 0) | |
616 | ++p; | |
617 | else | |
618 | break; | |
c906108c | 619 | } |
c906108c | 620 | |
5ee4ed9f JK |
621 | tinybuf[0] = DIRNAME_SEPARATOR; |
622 | tinybuf[1] = '\0'; | |
c906108c | 623 | |
5ee4ed9f JK |
624 | /* If we have already tacked on a name(s) in this command, |
625 | be sure they stay on the front as we tack on some | |
626 | more. */ | |
627 | if (prefix) | |
628 | { | |
629 | char *temp, c; | |
630 | ||
631 | c = old[prefix]; | |
632 | old[prefix] = '\0'; | |
633 | temp = concat (old, tinybuf, name, (char *)NULL); | |
634 | old[prefix] = c; | |
635 | *which_path = concat (temp, "", &old[prefix], (char *) NULL); | |
636 | prefix = strlen (temp); | |
637 | xfree (temp); | |
638 | } | |
639 | else | |
640 | { | |
641 | *which_path = concat (name, (old[0] ? tinybuf : old), | |
642 | old, (char *)NULL); | |
643 | prefix = strlen (name); | |
c906108c | 644 | } |
5ee4ed9f JK |
645 | xfree (old); |
646 | old = *which_path; | |
c906108c | 647 | } |
82ae4854 | 648 | skip_dup: |
b27cf2b3 | 649 | ; |
c5aa993b | 650 | } |
e4ab2fad JK |
651 | |
652 | do_cleanups (back_to); | |
c906108c SS |
653 | } |
654 | ||
655 | ||
656 | static void | |
fba45db2 | 657 | source_info (char *ignore, int from_tty) |
c906108c | 658 | { |
52f0bd74 | 659 | struct symtab *s = current_source_symtab; |
c906108c SS |
660 | |
661 | if (!s) | |
662 | { | |
a3f17187 | 663 | printf_filtered (_("No current source file.\n")); |
c906108c SS |
664 | return; |
665 | } | |
a3f17187 | 666 | printf_filtered (_("Current source file is %s\n"), s->filename); |
c906108c | 667 | if (s->dirname) |
a3f17187 | 668 | printf_filtered (_("Compilation directory is %s\n"), s->dirname); |
c906108c | 669 | if (s->fullname) |
a3f17187 | 670 | printf_filtered (_("Located in %s\n"), s->fullname); |
c906108c | 671 | if (s->nlines) |
a3f17187 | 672 | printf_filtered (_("Contains %d line%s.\n"), s->nlines, |
c906108c SS |
673 | s->nlines == 1 ? "" : "s"); |
674 | ||
a3f17187 AC |
675 | printf_filtered (_("Source language is %s.\n"), language_str (s->language)); |
676 | printf_filtered (_("Compiled with %s debugging format.\n"), s->debugformat); | |
677 | printf_filtered (_("%s preprocessor macro info.\n"), | |
919d772c | 678 | s->macro_table ? "Includes" : "Does not include"); |
c906108c | 679 | } |
c5aa993b | 680 | \f |
c906108c | 681 | |
c378eb4e | 682 | /* Return True if the file NAME exists and is a regular file. */ |
1da1a192 JB |
683 | static int |
684 | is_regular_file (const char *name) | |
685 | { | |
686 | struct stat st; | |
687 | const int status = stat (name, &st); | |
688 | ||
689 | /* Stat should never fail except when the file does not exist. | |
690 | If stat fails, analyze the source of error and return True | |
691 | unless the file does not exist, to avoid returning false results | |
c378eb4e MS |
692 | on obscure systems where stat does not work as expected. */ |
693 | ||
1da1a192 JB |
694 | if (status != 0) |
695 | return (errno != ENOENT); | |
696 | ||
697 | return S_ISREG (st.st_mode); | |
698 | } | |
c906108c | 699 | |
c906108c | 700 | /* Open a file named STRING, searching path PATH (dir names sep by some char) |
fbdebf46 JK |
701 | using mode MODE in the calls to open. You cannot use this function to |
702 | create files (O_CREAT). | |
c906108c | 703 | |
014d698b EZ |
704 | OPTS specifies the function behaviour in specific cases. |
705 | ||
706 | If OPF_TRY_CWD_FIRST, try to open ./STRING before searching PATH. | |
c906108c | 707 | (ie pretend the first element of PATH is "."). This also indicates |
e3e06db3 DE |
708 | that, unless OPF_SEARCH_IN_PATH is also specified, a slash in STRING |
709 | disables searching of the path (this is so that "exec-file ./foo" or | |
710 | "symbol-file ./foo" insures that you get that particular version of | |
711 | foo or an error message). | |
c906108c | 712 | |
014d698b EZ |
713 | If OPTS has OPF_SEARCH_IN_PATH set, absolute names will also be |
714 | searched in path (we usually want this for source files but not for | |
715 | executables). | |
716 | ||
e7a8479f | 717 | If FILENAME_OPENED is non-null, set it to a newly allocated string naming |
a89f66e4 | 718 | the actual file opened (this string will always start with a "/"). We |
c906108c SS |
719 | have to take special pains to avoid doubling the "/" between the directory |
720 | and the file, sigh! Emacs gets confuzzed by this when we print the | |
721 | source file name!!! | |
722 | ||
492c0ab7 JK |
723 | If OPTS has OPF_RETURN_REALPATH set return FILENAME_OPENED resolved by |
724 | gdb_realpath. Even without OPF_RETURN_REALPATH this function still returns | |
725 | filename starting with "/". If FILENAME_OPENED is NULL this option has no | |
726 | effect. | |
1f0c4988 | 727 | |
c906108c SS |
728 | If a file is found, return the descriptor. |
729 | Otherwise, return -1, with errno set for the last name we tried to open. */ | |
730 | ||
731 | /* >>>> This should only allow files of certain types, | |
c378eb4e | 732 | >>>> eg executable, non-directory. */ |
c906108c | 733 | int |
014d698b | 734 | openp (const char *path, int opts, const char *string, |
fbdebf46 | 735 | int mode, char **filename_opened) |
c906108c | 736 | { |
52f0bd74 AC |
737 | int fd; |
738 | char *filename; | |
c906108c | 739 | int alloclen; |
e4ab2fad JK |
740 | VEC (char_ptr) *dir_vec; |
741 | struct cleanup *back_to; | |
742 | int ix; | |
743 | char *dir; | |
c906108c | 744 | |
fbdebf46 JK |
745 | /* The open syscall MODE parameter is not specified. */ |
746 | gdb_assert ((mode & O_CREAT) == 0); | |
f91e5ac3 JB |
747 | gdb_assert (string != NULL); |
748 | ||
749 | /* A file with an empty name cannot possibly exist. Report a failure | |
750 | without further checking. | |
751 | ||
752 | This is an optimization which also defends us against buggy | |
753 | implementations of the "stat" function. For instance, we have | |
754 | noticed that a MinGW debugger built on Windows XP 32bits crashes | |
755 | when the debugger is started with an empty argument. */ | |
756 | if (string[0] == '\0') | |
757 | { | |
758 | errno = ENOENT; | |
759 | return -1; | |
760 | } | |
fbdebf46 | 761 | |
c906108c SS |
762 | if (!path) |
763 | path = "."; | |
764 | ||
c906108c | 765 | mode |= O_BINARY; |
c906108c | 766 | |
014d698b | 767 | if ((opts & OPF_TRY_CWD_FIRST) || IS_ABSOLUTE_PATH (string)) |
c906108c SS |
768 | { |
769 | int i; | |
072b1022 DJ |
770 | |
771 | if (is_regular_file (string)) | |
772 | { | |
773 | filename = alloca (strlen (string) + 1); | |
774 | strcpy (filename, string); | |
614c279d | 775 | fd = gdb_open_cloexec (filename, mode, 0); |
072b1022 DJ |
776 | if (fd >= 0) |
777 | goto done; | |
778 | } | |
779 | else | |
3f565f1e DJ |
780 | { |
781 | filename = NULL; | |
782 | fd = -1; | |
783 | } | |
072b1022 | 784 | |
014d698b EZ |
785 | if (!(opts & OPF_SEARCH_IN_PATH)) |
786 | for (i = 0; string[i]; i++) | |
787 | if (IS_DIR_SEPARATOR (string[i])) | |
788 | goto done; | |
c906108c SS |
789 | } |
790 | ||
e6d9b9c2 DE |
791 | /* For dos paths, d:/foo -> /foo, and d:foo -> foo. */ |
792 | if (HAS_DRIVE_SPEC (string)) | |
793 | string = STRIP_DRIVE_SPEC (string); | |
794 | ||
c378eb4e | 795 | /* /foo => foo, to avoid multiple slashes that Emacs doesn't like. */ |
014d698b EZ |
796 | while (IS_DIR_SEPARATOR(string[0])) |
797 | string++; | |
798 | ||
c906108c | 799 | /* ./foo => foo */ |
fe4e3eb8 | 800 | while (string[0] == '.' && IS_DIR_SEPARATOR (string[1])) |
c906108c SS |
801 | string += 2; |
802 | ||
803 | alloclen = strlen (path) + strlen (string) + 2; | |
1f8cc6db | 804 | filename = alloca (alloclen); |
c906108c | 805 | fd = -1; |
e4ab2fad JK |
806 | |
807 | dir_vec = dirnames_to_char_ptr_vec (path); | |
808 | back_to = make_cleanup_free_char_ptr_vec (dir_vec); | |
809 | ||
810 | for (ix = 0; VEC_iterate (char_ptr, dir_vec, ix, dir); ++ix) | |
c906108c | 811 | { |
e4ab2fad | 812 | size_t len = strlen (dir); |
c906108c | 813 | |
e4ab2fad | 814 | if (strcmp (dir, "$cwd") == 0) |
c5aa993b JM |
815 | { |
816 | /* Name is $cwd -- insert current directory name instead. */ | |
817 | int newlen; | |
818 | ||
c378eb4e | 819 | /* First, realloc the filename buffer if too short. */ |
c5aa993b JM |
820 | len = strlen (current_directory); |
821 | newlen = len + strlen (string) + 2; | |
822 | if (newlen > alloclen) | |
823 | { | |
824 | alloclen = newlen; | |
1f8cc6db | 825 | filename = alloca (alloclen); |
c5aa993b JM |
826 | } |
827 | strcpy (filename, current_directory); | |
828 | } | |
ebd86fb5 TJB |
829 | else if (strchr(dir, '~')) |
830 | { | |
831 | /* See whether we need to expand the tilde. */ | |
832 | int newlen; | |
833 | char *tilde_expanded; | |
834 | ||
835 | tilde_expanded = tilde_expand (dir); | |
836 | ||
837 | /* First, realloc the filename buffer if too short. */ | |
838 | len = strlen (tilde_expanded); | |
839 | newlen = len + strlen (string) + 2; | |
840 | if (newlen > alloclen) | |
841 | { | |
842 | alloclen = newlen; | |
843 | filename = alloca (alloclen); | |
844 | } | |
845 | strcpy (filename, tilde_expanded); | |
846 | xfree (tilde_expanded); | |
847 | } | |
c5aa993b JM |
848 | else |
849 | { | |
850 | /* Normal file name in path -- just use it. */ | |
e4ab2fad | 851 | strcpy (filename, dir); |
08001717 DE |
852 | |
853 | /* Don't search $cdir. It's also a magic path like $cwd, but we | |
854 | don't have enough information to expand it. The user *could* | |
855 | have an actual directory named '$cdir' but handling that would | |
856 | be confusing, it would mean different things in different | |
857 | contexts. If the user really has '$cdir' one can use './$cdir'. | |
858 | We can get $cdir when loading scripts. When loading source files | |
859 | $cdir must have already been expanded to the correct value. */ | |
e4ab2fad | 860 | if (strcmp (dir, "$cdir") == 0) |
08001717 | 861 | continue; |
c906108c | 862 | } |
c906108c | 863 | |
c378eb4e | 864 | /* Remove trailing slashes. */ |
fe4e3eb8 | 865 | while (len > 0 && IS_DIR_SEPARATOR (filename[len - 1])) |
c906108c SS |
866 | filename[--len] = 0; |
867 | ||
c5aa993b | 868 | strcat (filename + len, SLASH_STRING); |
c906108c SS |
869 | strcat (filename, string); |
870 | ||
1da1a192 | 871 | if (is_regular_file (filename)) |
5e987968 | 872 | { |
614c279d | 873 | fd = gdb_open_cloexec (filename, mode, 0); |
5e987968 AS |
874 | if (fd >= 0) |
875 | break; | |
876 | } | |
c906108c SS |
877 | } |
878 | ||
e4ab2fad JK |
879 | do_cleanups (back_to); |
880 | ||
c5aa993b | 881 | done: |
c906108c SS |
882 | if (filename_opened) |
883 | { | |
f5b95b50 | 884 | /* If a file was opened, canonicalize its filename. */ |
c906108c | 885 | if (fd < 0) |
1f8cc6db | 886 | *filename_opened = NULL; |
04affae3 JK |
887 | else if ((opts & OPF_RETURN_REALPATH) != 0) |
888 | *filename_opened = gdb_realpath (filename); | |
c906108c | 889 | else |
04affae3 | 890 | *filename_opened = gdb_abspath (filename); |
c906108c | 891 | } |
c906108c SS |
892 | |
893 | return fd; | |
894 | } | |
895 | ||
c5aa993b | 896 | |
c906108c SS |
897 | /* This is essentially a convenience, for clients that want the behaviour |
898 | of openp, using source_path, but that really don't want the file to be | |
899 | opened but want instead just to know what the full pathname is (as | |
900 | qualified against source_path). | |
901 | ||
902 | The current working directory is searched first. | |
903 | ||
904 | If the file was found, this function returns 1, and FULL_PATHNAME is | |
905 | set to the fully-qualified pathname. | |
906 | ||
5e987968 | 907 | Else, this functions returns 0, and FULL_PATHNAME is set to NULL. */ |
c906108c | 908 | int |
24f81874 | 909 | source_full_path_of (const char *filename, char **full_pathname) |
c906108c | 910 | { |
c5aa993b | 911 | int fd; |
c906108c | 912 | |
492c0ab7 JK |
913 | fd = openp (source_path, |
914 | OPF_TRY_CWD_FIRST | OPF_SEARCH_IN_PATH | OPF_RETURN_REALPATH, | |
915 | filename, O_RDONLY, full_pathname); | |
c906108c SS |
916 | if (fd < 0) |
917 | { | |
918 | *full_pathname = NULL; | |
919 | return 0; | |
920 | } | |
921 | ||
922 | close (fd); | |
923 | return 1; | |
924 | } | |
925 | ||
2f61ca93 JB |
926 | /* Return non-zero if RULE matches PATH, that is if the rule can be |
927 | applied to PATH. */ | |
928 | ||
929 | static int | |
930 | substitute_path_rule_matches (const struct substitute_path_rule *rule, | |
931 | const char *path) | |
932 | { | |
933 | const int from_len = strlen (rule->from); | |
934 | const int path_len = strlen (path); | |
935 | char *path_start; | |
936 | ||
937 | if (path_len < from_len) | |
938 | return 0; | |
939 | ||
940 | /* The substitution rules are anchored at the start of the path, | |
941 | so the path should start with rule->from. There is no filename | |
942 | comparison routine, so we need to extract the first FROM_LEN | |
943 | characters from PATH first and use that to do the comparison. */ | |
944 | ||
945 | path_start = alloca (from_len + 1); | |
946 | strncpy (path_start, path, from_len); | |
947 | path_start[from_len] = '\0'; | |
948 | ||
949 | if (FILENAME_CMP (path_start, rule->from) != 0) | |
950 | return 0; | |
951 | ||
952 | /* Make sure that the region in the path that matches the substitution | |
953 | rule is immediately followed by a directory separator (or the end of | |
954 | string character). */ | |
955 | ||
956 | if (path[from_len] != '\0' && !IS_DIR_SEPARATOR (path[from_len])) | |
957 | return 0; | |
958 | ||
959 | return 1; | |
960 | } | |
961 | ||
962 | /* Find the substitute-path rule that applies to PATH and return it. | |
963 | Return NULL if no rule applies. */ | |
964 | ||
965 | static struct substitute_path_rule * | |
966 | get_substitute_path_rule (const char *path) | |
967 | { | |
968 | struct substitute_path_rule *rule = substitute_path_rules; | |
969 | ||
970 | while (rule != NULL && !substitute_path_rule_matches (rule, path)) | |
971 | rule = rule->next; | |
972 | ||
973 | return rule; | |
974 | } | |
975 | ||
976 | /* If the user specified a source path substitution rule that applies | |
977 | to PATH, then apply it and return the new path. This new path must | |
c378eb4e | 978 | be deallocated afterwards. |
2f61ca93 JB |
979 | |
980 | Return NULL if no substitution rule was specified by the user, | |
981 | or if no rule applied to the given PATH. */ | |
982 | ||
fbd9ab74 | 983 | char * |
2f61ca93 JB |
984 | rewrite_source_path (const char *path) |
985 | { | |
986 | const struct substitute_path_rule *rule = get_substitute_path_rule (path); | |
987 | char *new_path; | |
988 | int from_len; | |
989 | ||
990 | if (rule == NULL) | |
991 | return NULL; | |
992 | ||
993 | from_len = strlen (rule->from); | |
994 | ||
995 | /* Compute the rewritten path and return it. */ | |
996 | ||
997 | new_path = | |
998 | (char *) xmalloc (strlen (path) + 1 + strlen (rule->to) - from_len); | |
999 | strcpy (new_path, rule->to); | |
1000 | strcat (new_path, path + from_len); | |
1001 | ||
1002 | return new_path; | |
1003 | } | |
1004 | ||
ccefe4c4 | 1005 | int |
e2357892 | 1006 | find_and_open_source (const char *filename, |
5e987968 AS |
1007 | const char *dirname, |
1008 | char **fullname) | |
c906108c SS |
1009 | { |
1010 | char *path = source_path; | |
31889e00 | 1011 | const char *p; |
c906108c | 1012 | int result; |
795d915c | 1013 | struct cleanup *cleanup; |
c906108c | 1014 | |
c378eb4e | 1015 | /* Quick way out if we already know its full name. */ |
2f61ca93 | 1016 | |
57c22c6c | 1017 | if (*fullname) |
c906108c | 1018 | { |
2f61ca93 JB |
1019 | /* The user may have requested that source paths be rewritten |
1020 | according to substitution rules he provided. If a substitution | |
1021 | rule applies to this path, then apply it. */ | |
1022 | char *rewritten_fullname = rewrite_source_path (*fullname); | |
1023 | ||
1024 | if (rewritten_fullname != NULL) | |
1025 | { | |
1026 | xfree (*fullname); | |
1027 | *fullname = rewritten_fullname; | |
1028 | } | |
1029 | ||
614c279d | 1030 | result = gdb_open_cloexec (*fullname, OPEN_MODE, 0); |
c906108c | 1031 | if (result >= 0) |
bc3aa6c3 | 1032 | { |
f5b95b50 | 1033 | char *lpath = gdb_realpath (*fullname); |
bc3aa6c3 DE |
1034 | |
1035 | xfree (*fullname); | |
1036 | *fullname = lpath; | |
1037 | return result; | |
1038 | } | |
1039 | ||
c378eb4e | 1040 | /* Didn't work -- free old one, try again. */ |
2dc74dc1 | 1041 | xfree (*fullname); |
57c22c6c | 1042 | *fullname = NULL; |
c906108c SS |
1043 | } |
1044 | ||
795d915c TT |
1045 | cleanup = make_cleanup (null_cleanup, NULL); |
1046 | ||
57c22c6c | 1047 | if (dirname != NULL) |
c906108c | 1048 | { |
2f61ca93 JB |
1049 | /* If necessary, rewrite the compilation directory name according |
1050 | to the source path substitution rules specified by the user. */ | |
1051 | ||
1052 | char *rewritten_dirname = rewrite_source_path (dirname); | |
1053 | ||
1054 | if (rewritten_dirname != NULL) | |
1055 | { | |
1056 | make_cleanup (xfree, rewritten_dirname); | |
1057 | dirname = rewritten_dirname; | |
1058 | } | |
1059 | ||
c378eb4e MS |
1060 | /* Replace a path entry of $cdir with the compilation directory |
1061 | name. */ | |
c906108c SS |
1062 | #define cdir_len 5 |
1063 | /* We cast strstr's result in case an ANSIhole has made it const, | |
c378eb4e | 1064 | which produces a "required warning" when assigned to a nonconst. */ |
c5aa993b | 1065 | p = (char *) strstr (source_path, "$cdir"); |
c906108c | 1066 | if (p && (p == path || p[-1] == DIRNAME_SEPARATOR) |
c5aa993b | 1067 | && (p[cdir_len] == DIRNAME_SEPARATOR || p[cdir_len] == '\0')) |
c906108c SS |
1068 | { |
1069 | int len; | |
1070 | ||
1071 | path = (char *) | |
57c22c6c | 1072 | alloca (strlen (source_path) + 1 + strlen (dirname) + 1); |
c906108c | 1073 | len = p - source_path; |
c5aa993b | 1074 | strncpy (path, source_path, len); /* Before $cdir */ |
3e43a32a MS |
1075 | strcpy (path + len, dirname); /* new stuff */ |
1076 | strcat (path + len, source_path + len + cdir_len); /* After | |
1077 | $cdir */ | |
c906108c SS |
1078 | } |
1079 | } | |
8da2a1df DJ |
1080 | |
1081 | if (IS_ABSOLUTE_PATH (filename)) | |
56163ce1 | 1082 | { |
8da2a1df DJ |
1083 | /* If filename is absolute path, try the source path |
1084 | substitution on it. */ | |
56163ce1 JB |
1085 | char *rewritten_filename = rewrite_source_path (filename); |
1086 | ||
1087 | if (rewritten_filename != NULL) | |
1088 | { | |
1089 | make_cleanup (xfree, rewritten_filename); | |
1090 | filename = rewritten_filename; | |
1091 | } | |
1092 | } | |
c906108c | 1093 | |
492c0ab7 JK |
1094 | result = openp (path, OPF_SEARCH_IN_PATH | OPF_RETURN_REALPATH, filename, |
1095 | OPEN_MODE, fullname); | |
c906108c SS |
1096 | if (result < 0) |
1097 | { | |
c378eb4e | 1098 | /* Didn't work. Try using just the basename. */ |
57c22c6c BR |
1099 | p = lbasename (filename); |
1100 | if (p != filename) | |
492c0ab7 JK |
1101 | result = openp (path, OPF_SEARCH_IN_PATH | OPF_RETURN_REALPATH, p, |
1102 | OPEN_MODE, fullname); | |
c906108c | 1103 | } |
c906108c | 1104 | |
795d915c | 1105 | do_cleanups (cleanup); |
c906108c SS |
1106 | return result; |
1107 | } | |
1108 | ||
57c22c6c BR |
1109 | /* Open a source file given a symtab S. Returns a file descriptor or |
1110 | negative number for error. | |
1111 | ||
c378eb4e | 1112 | This function is a convience function to find_and_open_source. */ |
57c22c6c BR |
1113 | |
1114 | int | |
1115 | open_source_file (struct symtab *s) | |
1116 | { | |
5e987968 AS |
1117 | if (!s) |
1118 | return -1; | |
57c22c6c | 1119 | |
e2357892 | 1120 | return find_and_open_source (s->filename, s->dirname, &s->fullname); |
57c22c6c BR |
1121 | } |
1122 | ||
1123 | /* Finds the fullname that a symtab represents. | |
c906108c | 1124 | |
f35a17b5 JK |
1125 | This functions finds the fullname and saves it in s->fullname. |
1126 | It will also return the value. | |
57c22c6c BR |
1127 | |
1128 | If this function fails to find the file that this symtab represents, | |
f35a17b5 JK |
1129 | the expected fullname is used. Therefore the files does not have to |
1130 | exist. */ | |
256f06f3 | 1131 | |
0b0865da | 1132 | const char * |
57c22c6c | 1133 | symtab_to_fullname (struct symtab *s) |
c906108c | 1134 | { |
256f06f3 DE |
1135 | /* Use cached copy if we have it. |
1136 | We rely on forget_cached_source_info being called appropriately | |
1137 | to handle cases like the file being moved. */ | |
f35a17b5 | 1138 | if (s->fullname == NULL) |
5e987968 | 1139 | { |
f35a17b5 JK |
1140 | int fd = find_and_open_source (s->filename, s->dirname, &s->fullname); |
1141 | ||
1142 | if (fd >= 0) | |
1143 | close (fd); | |
f35a17b5 | 1144 | else |
f0a4b570 JK |
1145 | { |
1146 | char *fullname; | |
1147 | struct cleanup *back_to; | |
1148 | ||
1149 | /* rewrite_source_path would be applied by find_and_open_source, we | |
1150 | should report the pathname where GDB tried to find the file. */ | |
1151 | ||
57b3c00c | 1152 | if (s->dirname == NULL || IS_ABSOLUTE_PATH (s->filename)) |
f0a4b570 JK |
1153 | fullname = xstrdup (s->filename); |
1154 | else | |
1155 | fullname = concat (s->dirname, SLASH_STRING, s->filename, NULL); | |
1156 | ||
1157 | back_to = make_cleanup (xfree, fullname); | |
1158 | s->fullname = rewrite_source_path (fullname); | |
1159 | if (s->fullname == NULL) | |
1160 | s->fullname = xstrdup (fullname); | |
1161 | do_cleanups (back_to); | |
1162 | } | |
f35a17b5 | 1163 | } |
c906108c | 1164 | |
f35a17b5 | 1165 | return s->fullname; |
57c22c6c | 1166 | } |
1b56eb55 JK |
1167 | |
1168 | /* See commentary in source.h. */ | |
1169 | ||
1170 | const char * | |
1171 | symtab_to_filename_for_display (struct symtab *symtab) | |
1172 | { | |
1173 | if (filename_display_string == filename_display_basename) | |
1174 | return lbasename (symtab->filename); | |
1175 | else if (filename_display_string == filename_display_absolute) | |
1176 | return symtab_to_fullname (symtab); | |
1177 | else if (filename_display_string == filename_display_relative) | |
1178 | return symtab->filename; | |
1179 | else | |
1180 | internal_error (__FILE__, __LINE__, _("invalid filename_display_string")); | |
1181 | } | |
5e987968 | 1182 | \f |
c906108c SS |
1183 | /* Create and initialize the table S->line_charpos that records |
1184 | the positions of the lines in the source file, which is assumed | |
1185 | to be open on descriptor DESC. | |
1186 | All set S->nlines to the number of such lines. */ | |
1187 | ||
1188 | void | |
fba45db2 | 1189 | find_source_lines (struct symtab *s, int desc) |
c906108c SS |
1190 | { |
1191 | struct stat st; | |
52f0bd74 | 1192 | char *data, *p, *end; |
c906108c SS |
1193 | int nlines = 0; |
1194 | int lines_allocated = 1000; | |
1195 | int *line_charpos; | |
1196 | long mtime = 0; | |
1197 | int size; | |
1198 | ||
be8ca11b | 1199 | gdb_assert (s); |
7936743b | 1200 | line_charpos = (int *) xmalloc (lines_allocated * sizeof (int)); |
c906108c | 1201 | if (fstat (desc, &st) < 0) |
05cba821 | 1202 | perror_with_name (symtab_to_filename_for_display (s)); |
c906108c | 1203 | |
be8ca11b | 1204 | if (s->objfile && s->objfile->obfd) |
c04ea773 | 1205 | mtime = s->objfile->mtime; |
c906108c | 1206 | else if (exec_bfd) |
c04ea773 | 1207 | mtime = exec_bfd_mtime; |
c906108c SS |
1208 | |
1209 | if (mtime && mtime < st.st_mtime) | |
8a3fe4f8 | 1210 | warning (_("Source file is more recent than executable.")); |
c906108c | 1211 | |
c906108c SS |
1212 | { |
1213 | struct cleanup *old_cleanups; | |
1214 | ||
1215 | /* st_size might be a large type, but we only support source files whose | |
1216 | size fits in an int. */ | |
1217 | size = (int) st.st_size; | |
1218 | ||
1219 | /* Use malloc, not alloca, because this may be pretty large, and we may | |
1220 | run into various kinds of limits on stack size. */ | |
1221 | data = (char *) xmalloc (size); | |
b8c9b27d | 1222 | old_cleanups = make_cleanup (xfree, data); |
c906108c SS |
1223 | |
1224 | /* Reassign `size' to result of read for systems where \r\n -> \n. */ | |
1225 | size = myread (desc, data, size); | |
1226 | if (size < 0) | |
05cba821 | 1227 | perror_with_name (symtab_to_filename_for_display (s)); |
c906108c SS |
1228 | end = data + size; |
1229 | p = data; | |
1230 | line_charpos[0] = 0; | |
1231 | nlines = 1; | |
1232 | while (p != end) | |
1233 | { | |
1234 | if (*p++ == '\n' | |
c5aa993b | 1235 | /* A newline at the end does not start a new line. */ |
c906108c SS |
1236 | && p != end) |
1237 | { | |
1238 | if (nlines == lines_allocated) | |
1239 | { | |
1240 | lines_allocated *= 2; | |
1241 | line_charpos = | |
0efffb96 AC |
1242 | (int *) xrealloc ((char *) line_charpos, |
1243 | sizeof (int) * lines_allocated); | |
c906108c SS |
1244 | } |
1245 | line_charpos[nlines++] = p - data; | |
1246 | } | |
1247 | } | |
1248 | do_cleanups (old_cleanups); | |
1249 | } | |
d4d4db8a | 1250 | |
c906108c SS |
1251 | s->nlines = nlines; |
1252 | s->line_charpos = | |
0efffb96 | 1253 | (int *) xrealloc ((char *) line_charpos, nlines * sizeof (int)); |
c906108c SS |
1254 | |
1255 | } | |
1256 | ||
c906108c | 1257 | \f |
c5aa993b | 1258 | |
c906108c SS |
1259 | /* Get full pathname and line number positions for a symtab. |
1260 | Return nonzero if line numbers may have changed. | |
1261 | Set *FULLNAME to actual name of the file as found by `openp', | |
1262 | or to 0 if the file is not found. */ | |
1263 | ||
1264 | static int | |
fba45db2 | 1265 | get_filename_and_charpos (struct symtab *s, char **fullname) |
c906108c | 1266 | { |
52f0bd74 | 1267 | int desc, linenums_changed = 0; |
9fe4a216 | 1268 | struct cleanup *cleanups; |
c5aa993b | 1269 | |
c906108c SS |
1270 | desc = open_source_file (s); |
1271 | if (desc < 0) | |
1272 | { | |
1273 | if (fullname) | |
1274 | *fullname = NULL; | |
1275 | return 0; | |
c5aa993b | 1276 | } |
9fe4a216 | 1277 | cleanups = make_cleanup_close (desc); |
c906108c SS |
1278 | if (fullname) |
1279 | *fullname = s->fullname; | |
c5aa993b JM |
1280 | if (s->line_charpos == 0) |
1281 | linenums_changed = 1; | |
1282 | if (linenums_changed) | |
1283 | find_source_lines (s, desc); | |
9fe4a216 | 1284 | do_cleanups (cleanups); |
c906108c SS |
1285 | return linenums_changed; |
1286 | } | |
1287 | ||
1288 | /* Print text describing the full name of the source file S | |
1289 | and the line number LINE and its corresponding character position. | |
1290 | The text starts with two Ctrl-z so that the Emacs-GDB interface | |
1291 | can easily find it. | |
1292 | ||
1293 | MID_STATEMENT is nonzero if the PC is not at the beginning of that line. | |
1294 | ||
1295 | Return 1 if successful, 0 if could not find the file. */ | |
1296 | ||
1297 | int | |
fba45db2 KB |
1298 | identify_source_line (struct symtab *s, int line, int mid_statement, |
1299 | CORE_ADDR pc) | |
c906108c SS |
1300 | { |
1301 | if (s->line_charpos == 0) | |
c5aa993b | 1302 | get_filename_and_charpos (s, (char **) NULL); |
c906108c SS |
1303 | if (s->fullname == 0) |
1304 | return 0; | |
1305 | if (line > s->nlines) | |
1306 | /* Don't index off the end of the line_charpos array. */ | |
1307 | return 0; | |
1308 | annotate_source (s->fullname, line, s->line_charpos[line - 1], | |
5af949e3 | 1309 | mid_statement, get_objfile_arch (s->objfile), pc); |
c906108c SS |
1310 | |
1311 | current_source_line = line; | |
c906108c | 1312 | current_source_symtab = s; |
5166082f | 1313 | clear_lines_listed_range (); |
c906108c SS |
1314 | return 1; |
1315 | } | |
c906108c | 1316 | \f |
c5aa993b | 1317 | |
c906108c | 1318 | /* Print source lines from the file of symtab S, |
c378eb4e | 1319 | starting with line number LINE and stopping before line number STOPLINE. */ |
c906108c SS |
1320 | |
1321 | static void | |
dfaae886 MM |
1322 | print_source_lines_base (struct symtab *s, int line, int stopline, |
1323 | enum print_source_lines_flags flags) | |
c906108c | 1324 | { |
52f0bd74 AC |
1325 | int c; |
1326 | int desc; | |
f4dfd9c0 | 1327 | int noprint = 0; |
52f0bd74 | 1328 | FILE *stream; |
c906108c | 1329 | int nlines = stopline - line; |
7c8a8b04 | 1330 | struct cleanup *cleanup; |
79a45e25 | 1331 | struct ui_out *uiout = current_uiout; |
c906108c | 1332 | |
c378eb4e | 1333 | /* Regardless of whether we can open the file, set current_source_symtab. */ |
c906108c SS |
1334 | current_source_symtab = s; |
1335 | current_source_line = line; | |
1336 | first_line_listed = line; | |
1337 | ||
3e43a32a | 1338 | /* If printing of source lines is disabled, just print file and line |
c378eb4e | 1339 | number. */ |
8b93c638 JM |
1340 | if (ui_out_test_flags (uiout, ui_source_list)) |
1341 | { | |
c378eb4e | 1342 | /* Only prints "No such file or directory" once. */ |
c5aa993b JM |
1343 | if ((s != last_source_visited) || (!last_source_error)) |
1344 | { | |
1345 | last_source_visited = s; | |
1346 | desc = open_source_file (s); | |
1347 | } | |
1348 | else | |
1349 | { | |
1350 | desc = last_source_error; | |
dfaae886 | 1351 | flags |= PRINT_SOURCE_LINES_NOERROR; |
c5aa993b | 1352 | } |
8b93c638 JM |
1353 | } |
1354 | else | |
1355 | { | |
f4dfd9c0 | 1356 | desc = last_source_error; |
dfaae886 | 1357 | flags |= PRINT_SOURCE_LINES_NOERROR; |
f4dfd9c0 | 1358 | noprint = 1; |
8b93c638 | 1359 | } |
c906108c | 1360 | |
f4dfd9c0 | 1361 | if (desc < 0 || noprint) |
c906108c SS |
1362 | { |
1363 | last_source_error = desc; | |
1364 | ||
dfaae886 | 1365 | if (!(flags & PRINT_SOURCE_LINES_NOERROR)) |
c5aa993b | 1366 | { |
05cba821 JK |
1367 | const char *filename = symtab_to_filename_for_display (s); |
1368 | int len = strlen (filename) + 100; | |
08850b56 PM |
1369 | char *name = alloca (len); |
1370 | ||
05cba821 | 1371 | xsnprintf (name, len, "%d\t%s", line, filename); |
c906108c SS |
1372 | print_sys_errmsg (name, errno); |
1373 | } | |
1374 | else | |
fc0ae648 AB |
1375 | { |
1376 | ui_out_field_int (uiout, "line", line); | |
1377 | ui_out_text (uiout, "\tin "); | |
56d397a3 | 1378 | |
23eb71e4 JK |
1379 | /* CLI expects only the "file" field. TUI expects only the |
1380 | "fullname" field (and TUI does break if "file" is printed). | |
1381 | MI expects both fields. ui_source_list is set only for CLI, | |
1382 | not for TUI. */ | |
1383 | if (ui_out_is_mi_like_p (uiout) | |
1384 | || ui_out_test_flags (uiout, ui_source_list)) | |
1385 | ui_out_field_string (uiout, "file", | |
1386 | symtab_to_filename_for_display (s)); | |
56d397a3 JK |
1387 | if (ui_out_is_mi_like_p (uiout) |
1388 | || !ui_out_test_flags (uiout, ui_source_list)) | |
8f1b8b82 JK |
1389 | { |
1390 | const char *s_fullname = symtab_to_fullname (s); | |
1391 | char *local_fullname; | |
1392 | ||
1393 | /* ui_out_field_string may free S_FULLNAME by calling | |
1394 | open_source_file for it again. See e.g., | |
1395 | tui_field_string->tui_show_source. */ | |
1396 | local_fullname = alloca (strlen (s_fullname) + 1); | |
1397 | strcpy (local_fullname, s_fullname); | |
1398 | ||
1399 | ui_out_field_string (uiout, "fullname", local_fullname); | |
1400 | } | |
23eb71e4 | 1401 | |
fc0ae648 AB |
1402 | ui_out_text (uiout, "\n"); |
1403 | } | |
c906108c SS |
1404 | |
1405 | return; | |
1406 | } | |
1407 | ||
1408 | last_source_error = 0; | |
1409 | ||
1410 | if (s->line_charpos == 0) | |
1411 | find_source_lines (s, desc); | |
1412 | ||
1413 | if (line < 1 || line > s->nlines) | |
1414 | { | |
1415 | close (desc); | |
8a3fe4f8 | 1416 | error (_("Line number %d out of range; %s has %d lines."), |
05cba821 | 1417 | line, symtab_to_filename_for_display (s), s->nlines); |
c906108c SS |
1418 | } |
1419 | ||
1420 | if (lseek (desc, s->line_charpos[line - 1], 0) < 0) | |
1421 | { | |
1422 | close (desc); | |
05cba821 | 1423 | perror_with_name (symtab_to_filename_for_display (s)); |
c906108c SS |
1424 | } |
1425 | ||
1426 | stream = fdopen (desc, FDOPEN_MODE); | |
1427 | clearerr (stream); | |
7c8a8b04 | 1428 | cleanup = make_cleanup_fclose (stream); |
c906108c SS |
1429 | |
1430 | while (nlines-- > 0) | |
1431 | { | |
8b93c638 JM |
1432 | char buf[20]; |
1433 | ||
1434 | c = fgetc (stream); | |
1435 | if (c == EOF) | |
1436 | break; | |
1437 | last_line_listed = current_source_line; | |
4cd29721 MM |
1438 | if (flags & PRINT_SOURCE_LINES_FILENAME) |
1439 | { | |
05cba821 | 1440 | ui_out_text (uiout, symtab_to_filename_for_display (s)); |
4cd29721 MM |
1441 | ui_out_text (uiout, ":"); |
1442 | } | |
08850b56 | 1443 | xsnprintf (buf, sizeof (buf), "%d\t", current_source_line++); |
8b93c638 JM |
1444 | ui_out_text (uiout, buf); |
1445 | do | |
1446 | { | |
1447 | if (c < 040 && c != '\t' && c != '\n' && c != '\r') | |
1448 | { | |
08850b56 | 1449 | xsnprintf (buf, sizeof (buf), "^%c", c + 0100); |
8b93c638 JM |
1450 | ui_out_text (uiout, buf); |
1451 | } | |
1452 | else if (c == 0177) | |
1453 | ui_out_text (uiout, "^?"); | |
8b93c638 JM |
1454 | else if (c == '\r') |
1455 | { | |
1456 | /* Skip a \r character, but only before a \n. */ | |
1457 | int c1 = fgetc (stream); | |
1458 | ||
1459 | if (c1 != '\n') | |
1460 | printf_filtered ("^%c", c + 0100); | |
1461 | if (c1 != EOF) | |
1462 | ungetc (c1, stream); | |
1463 | } | |
8b93c638 JM |
1464 | else |
1465 | { | |
08850b56 | 1466 | xsnprintf (buf, sizeof (buf), "%c", c); |
8b93c638 JM |
1467 | ui_out_text (uiout, buf); |
1468 | } | |
1469 | } | |
1470 | while (c != '\n' && (c = fgetc (stream)) >= 0); | |
c906108c SS |
1471 | } |
1472 | ||
7c8a8b04 | 1473 | do_cleanups (cleanup); |
c906108c SS |
1474 | } |
1475 | \f | |
1476 | /* Show source lines from the file of symtab S, starting with line | |
f132ba9d | 1477 | number LINE and stopping before line number STOPLINE. If this is |
c906108c | 1478 | not the command line version, then the source is shown in the source |
c378eb4e | 1479 | window otherwise it is simply printed. */ |
c906108c | 1480 | |
c5aa993b | 1481 | void |
dfaae886 MM |
1482 | print_source_lines (struct symtab *s, int line, int stopline, |
1483 | enum print_source_lines_flags flags) | |
c906108c | 1484 | { |
dfaae886 | 1485 | print_source_lines_base (s, line, stopline, flags); |
c906108c SS |
1486 | } |
1487 | \f | |
c906108c SS |
1488 | /* Print info on range of pc's in a specified line. */ |
1489 | ||
1490 | static void | |
fba45db2 | 1491 | line_info (char *arg, int from_tty) |
c906108c SS |
1492 | { |
1493 | struct symtabs_and_lines sals; | |
1494 | struct symtab_and_line sal; | |
1495 | CORE_ADDR start_pc, end_pc; | |
1496 | int i; | |
f8eba3c6 | 1497 | struct cleanup *cleanups; |
c906108c | 1498 | |
fe39c653 | 1499 | init_sal (&sal); /* initialize to zeroes */ |
c906108c SS |
1500 | |
1501 | if (arg == 0) | |
1502 | { | |
1503 | sal.symtab = current_source_symtab; | |
f8eba3c6 | 1504 | sal.pspace = current_program_space; |
5166082f PA |
1505 | if (last_line_listed != 0) |
1506 | sal.line = last_line_listed; | |
1507 | else | |
1508 | sal.line = current_source_line; | |
1509 | ||
c906108c SS |
1510 | sals.nelts = 1; |
1511 | sals.sals = (struct symtab_and_line *) | |
1512 | xmalloc (sizeof (struct symtab_and_line)); | |
1513 | sals.sals[0] = sal; | |
1514 | } | |
1515 | else | |
1516 | { | |
39cf75f7 | 1517 | sals = decode_line_with_last_displayed (arg, DECODE_LINE_LIST_MODE); |
c5aa993b | 1518 | |
c906108c SS |
1519 | dont_repeat (); |
1520 | } | |
1521 | ||
f8eba3c6 TT |
1522 | cleanups = make_cleanup (xfree, sals.sals); |
1523 | ||
c906108c | 1524 | /* C++ More than one line may have been specified, as when the user |
c378eb4e | 1525 | specifies an overloaded function name. Print info on them all. */ |
c906108c SS |
1526 | for (i = 0; i < sals.nelts; i++) |
1527 | { | |
1528 | sal = sals.sals[i]; | |
f8eba3c6 TT |
1529 | if (sal.pspace != current_program_space) |
1530 | continue; | |
c5aa993b | 1531 | |
c906108c SS |
1532 | if (sal.symtab == 0) |
1533 | { | |
5af949e3 UW |
1534 | struct gdbarch *gdbarch = get_current_arch (); |
1535 | ||
a3f17187 | 1536 | printf_filtered (_("No line number information available")); |
c906108c SS |
1537 | if (sal.pc != 0) |
1538 | { | |
1539 | /* This is useful for "info line *0x7f34". If we can't tell the | |
c5aa993b JM |
1540 | user about a source line, at least let them have the symbolic |
1541 | address. */ | |
c906108c SS |
1542 | printf_filtered (" for address "); |
1543 | wrap_here (" "); | |
5af949e3 | 1544 | print_address (gdbarch, sal.pc, gdb_stdout); |
c906108c SS |
1545 | } |
1546 | else | |
1547 | printf_filtered ("."); | |
1548 | printf_filtered ("\n"); | |
1549 | } | |
1550 | else if (sal.line > 0 | |
1551 | && find_line_pc_range (sal, &start_pc, &end_pc)) | |
1552 | { | |
5af949e3 UW |
1553 | struct gdbarch *gdbarch = get_objfile_arch (sal.symtab->objfile); |
1554 | ||
c906108c SS |
1555 | if (start_pc == end_pc) |
1556 | { | |
1557 | printf_filtered ("Line %d of \"%s\"", | |
05cba821 JK |
1558 | sal.line, |
1559 | symtab_to_filename_for_display (sal.symtab)); | |
c906108c SS |
1560 | wrap_here (" "); |
1561 | printf_filtered (" is at address "); | |
5af949e3 | 1562 | print_address (gdbarch, start_pc, gdb_stdout); |
c906108c SS |
1563 | wrap_here (" "); |
1564 | printf_filtered (" but contains no code.\n"); | |
1565 | } | |
1566 | else | |
1567 | { | |
1568 | printf_filtered ("Line %d of \"%s\"", | |
05cba821 JK |
1569 | sal.line, |
1570 | symtab_to_filename_for_display (sal.symtab)); | |
c906108c SS |
1571 | wrap_here (" "); |
1572 | printf_filtered (" starts at address "); | |
5af949e3 | 1573 | print_address (gdbarch, start_pc, gdb_stdout); |
c906108c SS |
1574 | wrap_here (" "); |
1575 | printf_filtered (" and ends at "); | |
5af949e3 | 1576 | print_address (gdbarch, end_pc, gdb_stdout); |
c906108c SS |
1577 | printf_filtered (".\n"); |
1578 | } | |
1579 | ||
1580 | /* x/i should display this line's code. */ | |
5af949e3 | 1581 | set_next_address (gdbarch, start_pc); |
c906108c SS |
1582 | |
1583 | /* Repeating "info line" should do the following line. */ | |
1584 | last_line_listed = sal.line + 1; | |
1585 | ||
1586 | /* If this is the only line, show the source code. If it could | |
1587 | not find the file, don't do anything special. */ | |
1588 | if (annotation_level && sals.nelts == 1) | |
1589 | identify_source_line (sal.symtab, sal.line, 0, start_pc); | |
1590 | } | |
1591 | else | |
1592 | /* Is there any case in which we get here, and have an address | |
1593 | which the user would want to see? If we have debugging symbols | |
1594 | and no line numbers? */ | |
a3f17187 | 1595 | printf_filtered (_("Line number %d is out of range for \"%s\".\n"), |
05cba821 | 1596 | sal.line, symtab_to_filename_for_display (sal.symtab)); |
c906108c | 1597 | } |
f8eba3c6 | 1598 | do_cleanups (cleanups); |
c906108c SS |
1599 | } |
1600 | \f | |
1601 | /* Commands to search the source file for a regexp. */ | |
1602 | ||
c906108c | 1603 | static void |
fba45db2 | 1604 | forward_search_command (char *regex, int from_tty) |
c906108c | 1605 | { |
52f0bd74 AC |
1606 | int c; |
1607 | int desc; | |
1608 | FILE *stream; | |
c906108c SS |
1609 | int line; |
1610 | char *msg; | |
9fe4a216 | 1611 | struct cleanup *cleanups; |
c906108c | 1612 | |
c906108c | 1613 | line = last_line_listed + 1; |
c906108c SS |
1614 | |
1615 | msg = (char *) re_comp (regex); | |
1616 | if (msg) | |
8a3fe4f8 | 1617 | error (("%s"), msg); |
c906108c SS |
1618 | |
1619 | if (current_source_symtab == 0) | |
1620 | select_source_symtab (0); | |
1621 | ||
1622 | desc = open_source_file (current_source_symtab); | |
1623 | if (desc < 0) | |
05cba821 | 1624 | perror_with_name (symtab_to_filename_for_display (current_source_symtab)); |
9fe4a216 | 1625 | cleanups = make_cleanup_close (desc); |
c906108c SS |
1626 | |
1627 | if (current_source_symtab->line_charpos == 0) | |
1628 | find_source_lines (current_source_symtab, desc); | |
1629 | ||
1630 | if (line < 1 || line > current_source_symtab->nlines) | |
9fe4a216 | 1631 | error (_("Expression not found")); |
c906108c SS |
1632 | |
1633 | if (lseek (desc, current_source_symtab->line_charpos[line - 1], 0) < 0) | |
05cba821 | 1634 | perror_with_name (symtab_to_filename_for_display (current_source_symtab)); |
c906108c | 1635 | |
9fe4a216 | 1636 | discard_cleanups (cleanups); |
c906108c SS |
1637 | stream = fdopen (desc, FDOPEN_MODE); |
1638 | clearerr (stream); | |
9fe4a216 | 1639 | cleanups = make_cleanup_fclose (stream); |
c5aa993b JM |
1640 | while (1) |
1641 | { | |
1642 | static char *buf = NULL; | |
aa1ee363 | 1643 | char *p; |
c5aa993b JM |
1644 | int cursize, newsize; |
1645 | ||
1646 | cursize = 256; | |
1647 | buf = xmalloc (cursize); | |
1648 | p = buf; | |
1649 | ||
40aea477 | 1650 | c = fgetc (stream); |
c5aa993b JM |
1651 | if (c == EOF) |
1652 | break; | |
1653 | do | |
c906108c | 1654 | { |
c5aa993b JM |
1655 | *p++ = c; |
1656 | if (p - buf == cursize) | |
1657 | { | |
1658 | newsize = cursize + cursize / 2; | |
1659 | buf = xrealloc (buf, newsize); | |
1660 | p = buf + cursize; | |
1661 | cursize = newsize; | |
1662 | } | |
c906108c | 1663 | } |
40aea477 | 1664 | while (c != '\n' && (c = fgetc (stream)) >= 0); |
c906108c | 1665 | |
7be570e7 JM |
1666 | /* Remove the \r, if any, at the end of the line, otherwise |
1667 | regular expressions that end with $ or \n won't work. */ | |
1668 | if (p - buf > 1 && p[-2] == '\r') | |
1669 | { | |
1670 | p--; | |
1671 | p[-1] = '\n'; | |
1672 | } | |
7be570e7 | 1673 | |
c378eb4e | 1674 | /* We now have a source line in buf, null terminate and match. */ |
c5aa993b JM |
1675 | *p = 0; |
1676 | if (re_exec (buf) > 0) | |
1677 | { | |
c378eb4e | 1678 | /* Match! */ |
e681b284 | 1679 | do_cleanups (cleanups); |
c5aa993b | 1680 | print_source_lines (current_source_symtab, line, line + 1, 0); |
4fa62494 | 1681 | set_internalvar_integer (lookup_internalvar ("_"), line); |
c5aa993b JM |
1682 | current_source_line = max (line - lines_to_list / 2, 1); |
1683 | return; | |
1684 | } | |
1685 | line++; | |
1686 | } | |
c906108c | 1687 | |
a3f17187 | 1688 | printf_filtered (_("Expression not found\n")); |
9fe4a216 | 1689 | do_cleanups (cleanups); |
c906108c SS |
1690 | } |
1691 | ||
c906108c | 1692 | static void |
fba45db2 | 1693 | reverse_search_command (char *regex, int from_tty) |
c906108c | 1694 | { |
52f0bd74 AC |
1695 | int c; |
1696 | int desc; | |
1697 | FILE *stream; | |
c906108c SS |
1698 | int line; |
1699 | char *msg; | |
9fe4a216 | 1700 | struct cleanup *cleanups; |
063190b6 | 1701 | |
c906108c | 1702 | line = last_line_listed - 1; |
c906108c SS |
1703 | |
1704 | msg = (char *) re_comp (regex); | |
1705 | if (msg) | |
8a3fe4f8 | 1706 | error (("%s"), msg); |
c906108c SS |
1707 | |
1708 | if (current_source_symtab == 0) | |
1709 | select_source_symtab (0); | |
1710 | ||
1711 | desc = open_source_file (current_source_symtab); | |
1712 | if (desc < 0) | |
05cba821 | 1713 | perror_with_name (symtab_to_filename_for_display (current_source_symtab)); |
9fe4a216 | 1714 | cleanups = make_cleanup_close (desc); |
c906108c SS |
1715 | |
1716 | if (current_source_symtab->line_charpos == 0) | |
1717 | find_source_lines (current_source_symtab, desc); | |
1718 | ||
1719 | if (line < 1 || line > current_source_symtab->nlines) | |
9fe4a216 | 1720 | error (_("Expression not found")); |
c906108c SS |
1721 | |
1722 | if (lseek (desc, current_source_symtab->line_charpos[line - 1], 0) < 0) | |
05cba821 | 1723 | perror_with_name (symtab_to_filename_for_display (current_source_symtab)); |
c906108c | 1724 | |
9fe4a216 | 1725 | discard_cleanups (cleanups); |
c906108c SS |
1726 | stream = fdopen (desc, FDOPEN_MODE); |
1727 | clearerr (stream); | |
9fe4a216 | 1728 | cleanups = make_cleanup_fclose (stream); |
c906108c SS |
1729 | while (line > 1) |
1730 | { | |
c378eb4e MS |
1731 | /* FIXME!!! We walk right off the end of buf if we get a long line!!! */ |
1732 | char buf[4096]; /* Should be reasonable??? */ | |
aa1ee363 | 1733 | char *p = buf; |
c906108c | 1734 | |
40aea477 | 1735 | c = fgetc (stream); |
c906108c SS |
1736 | if (c == EOF) |
1737 | break; | |
c5aa993b JM |
1738 | do |
1739 | { | |
1740 | *p++ = c; | |
1741 | } | |
40aea477 | 1742 | while (c != '\n' && (c = fgetc (stream)) >= 0); |
c906108c | 1743 | |
7be570e7 JM |
1744 | /* Remove the \r, if any, at the end of the line, otherwise |
1745 | regular expressions that end with $ or \n won't work. */ | |
1746 | if (p - buf > 1 && p[-2] == '\r') | |
1747 | { | |
1748 | p--; | |
1749 | p[-1] = '\n'; | |
1750 | } | |
7be570e7 | 1751 | |
c906108c SS |
1752 | /* We now have a source line in buf; null terminate and match. */ |
1753 | *p = 0; | |
1754 | if (re_exec (buf) > 0) | |
1755 | { | |
c378eb4e | 1756 | /* Match! */ |
e681b284 | 1757 | do_cleanups (cleanups); |
c5aa993b | 1758 | print_source_lines (current_source_symtab, line, line + 1, 0); |
4fa62494 | 1759 | set_internalvar_integer (lookup_internalvar ("_"), line); |
c906108c SS |
1760 | current_source_line = max (line - lines_to_list / 2, 1); |
1761 | return; | |
1762 | } | |
1763 | line--; | |
1764 | if (fseek (stream, current_source_symtab->line_charpos[line - 1], 0) < 0) | |
1765 | { | |
05cba821 JK |
1766 | const char *filename; |
1767 | ||
e681b284 | 1768 | do_cleanups (cleanups); |
05cba821 JK |
1769 | filename = symtab_to_filename_for_display (current_source_symtab); |
1770 | perror_with_name (filename); | |
c906108c SS |
1771 | } |
1772 | } | |
1773 | ||
a3f17187 | 1774 | printf_filtered (_("Expression not found\n")); |
9fe4a216 | 1775 | do_cleanups (cleanups); |
c906108c SS |
1776 | return; |
1777 | } | |
2f61ca93 JB |
1778 | |
1779 | /* If the last character of PATH is a directory separator, then strip it. */ | |
1780 | ||
1781 | static void | |
1782 | strip_trailing_directory_separator (char *path) | |
1783 | { | |
1784 | const int last = strlen (path) - 1; | |
1785 | ||
1786 | if (last < 0) | |
1787 | return; /* No stripping is needed if PATH is the empty string. */ | |
1788 | ||
1789 | if (IS_DIR_SEPARATOR (path[last])) | |
1790 | path[last] = '\0'; | |
1791 | } | |
1792 | ||
1793 | /* Return the path substitution rule that matches FROM. | |
1794 | Return NULL if no rule matches. */ | |
1795 | ||
1796 | static struct substitute_path_rule * | |
1797 | find_substitute_path_rule (const char *from) | |
1798 | { | |
1799 | struct substitute_path_rule *rule = substitute_path_rules; | |
1800 | ||
1801 | while (rule != NULL) | |
1802 | { | |
1803 | if (FILENAME_CMP (rule->from, from) == 0) | |
1804 | return rule; | |
1805 | rule = rule->next; | |
1806 | } | |
1807 | ||
1808 | return NULL; | |
1809 | } | |
1810 | ||
1811 | /* Add a new substitute-path rule at the end of the current list of rules. | |
1812 | The new rule will replace FROM into TO. */ | |
1813 | ||
29b0e8a2 | 1814 | void |
2f61ca93 JB |
1815 | add_substitute_path_rule (char *from, char *to) |
1816 | { | |
1817 | struct substitute_path_rule *rule; | |
1818 | struct substitute_path_rule *new_rule; | |
1819 | ||
1820 | new_rule = xmalloc (sizeof (struct substitute_path_rule)); | |
1821 | new_rule->from = xstrdup (from); | |
1822 | new_rule->to = xstrdup (to); | |
1823 | new_rule->next = NULL; | |
1824 | ||
1825 | /* If the list of rules are empty, then insert the new rule | |
1826 | at the head of the list. */ | |
1827 | ||
1828 | if (substitute_path_rules == NULL) | |
1829 | { | |
1830 | substitute_path_rules = new_rule; | |
1831 | return; | |
1832 | } | |
1833 | ||
1834 | /* Otherwise, skip to the last rule in our list and then append | |
1835 | the new rule. */ | |
1836 | ||
1837 | rule = substitute_path_rules; | |
1838 | while (rule->next != NULL) | |
1839 | rule = rule->next; | |
1840 | ||
1841 | rule->next = new_rule; | |
1842 | } | |
1843 | ||
1844 | /* Remove the given source path substitution rule from the current list | |
1845 | of rules. The memory allocated for that rule is also deallocated. */ | |
1846 | ||
1847 | static void | |
1848 | delete_substitute_path_rule (struct substitute_path_rule *rule) | |
1849 | { | |
1850 | if (rule == substitute_path_rules) | |
1851 | substitute_path_rules = rule->next; | |
1852 | else | |
1853 | { | |
1854 | struct substitute_path_rule *prev = substitute_path_rules; | |
1855 | ||
1856 | while (prev != NULL && prev->next != rule) | |
1857 | prev = prev->next; | |
1858 | ||
1859 | gdb_assert (prev != NULL); | |
1860 | ||
1861 | prev->next = rule->next; | |
1862 | } | |
1863 | ||
1864 | xfree (rule->from); | |
1865 | xfree (rule->to); | |
1866 | xfree (rule); | |
1867 | } | |
1868 | ||
1869 | /* Implement the "show substitute-path" command. */ | |
1870 | ||
1871 | static void | |
1872 | show_substitute_path_command (char *args, int from_tty) | |
1873 | { | |
1874 | struct substitute_path_rule *rule = substitute_path_rules; | |
1875 | char **argv; | |
1876 | char *from = NULL; | |
5b3fca71 | 1877 | struct cleanup *cleanup; |
2f61ca93 | 1878 | |
d1a41061 | 1879 | argv = gdb_buildargv (args); |
5b3fca71 | 1880 | cleanup = make_cleanup_freeargv (argv); |
2f61ca93 JB |
1881 | |
1882 | /* We expect zero or one argument. */ | |
1883 | ||
1884 | if (argv != NULL && argv[0] != NULL && argv[1] != NULL) | |
1885 | error (_("Too many arguments in command")); | |
1886 | ||
1887 | if (argv != NULL && argv[0] != NULL) | |
1888 | from = argv[0]; | |
1889 | ||
1890 | /* Print the substitution rules. */ | |
1891 | ||
1892 | if (from != NULL) | |
1893 | printf_filtered | |
1894 | (_("Source path substitution rule matching `%s':\n"), from); | |
1895 | else | |
1896 | printf_filtered (_("List of all source path substitution rules:\n")); | |
1897 | ||
1898 | while (rule != NULL) | |
1899 | { | |
1900 | if (from == NULL || FILENAME_CMP (rule->from, from) == 0) | |
1901 | printf_filtered (" `%s' -> `%s'.\n", rule->from, rule->to); | |
1902 | rule = rule->next; | |
1903 | } | |
5b3fca71 TT |
1904 | |
1905 | do_cleanups (cleanup); | |
2f61ca93 JB |
1906 | } |
1907 | ||
1908 | /* Implement the "unset substitute-path" command. */ | |
1909 | ||
1910 | static void | |
1911 | unset_substitute_path_command (char *args, int from_tty) | |
1912 | { | |
1913 | struct substitute_path_rule *rule = substitute_path_rules; | |
d1a41061 | 1914 | char **argv = gdb_buildargv (args); |
2f61ca93 JB |
1915 | char *from = NULL; |
1916 | int rule_found = 0; | |
5b3fca71 | 1917 | struct cleanup *cleanup; |
2f61ca93 JB |
1918 | |
1919 | /* This function takes either 0 or 1 argument. */ | |
1920 | ||
5b3fca71 | 1921 | cleanup = make_cleanup_freeargv (argv); |
2f61ca93 JB |
1922 | if (argv != NULL && argv[0] != NULL && argv[1] != NULL) |
1923 | error (_("Incorrect usage, too many arguments in command")); | |
1924 | ||
1925 | if (argv != NULL && argv[0] != NULL) | |
1926 | from = argv[0]; | |
1927 | ||
1928 | /* If the user asked for all the rules to be deleted, ask him | |
1929 | to confirm and give him a chance to abort before the action | |
1930 | is performed. */ | |
1931 | ||
1932 | if (from == NULL | |
1933 | && !query (_("Delete all source path substitution rules? "))) | |
1934 | error (_("Canceled")); | |
1935 | ||
1936 | /* Delete the rule matching the argument. No argument means that | |
1937 | all rules should be deleted. */ | |
1938 | ||
1939 | while (rule != NULL) | |
1940 | { | |
1941 | struct substitute_path_rule *next = rule->next; | |
1942 | ||
1943 | if (from == NULL || FILENAME_CMP (from, rule->from) == 0) | |
1944 | { | |
1945 | delete_substitute_path_rule (rule); | |
1946 | rule_found = 1; | |
1947 | } | |
1948 | ||
1949 | rule = next; | |
1950 | } | |
1951 | ||
1952 | /* If the user asked for a specific rule to be deleted but | |
1953 | we could not find it, then report an error. */ | |
1954 | ||
1955 | if (from != NULL && !rule_found) | |
1956 | error (_("No substitution rule defined for `%s'"), from); | |
c4e86dd4 DJ |
1957 | |
1958 | forget_cached_source_info (); | |
5b3fca71 TT |
1959 | |
1960 | do_cleanups (cleanup); | |
2f61ca93 JB |
1961 | } |
1962 | ||
1963 | /* Add a new source path substitution rule. */ | |
1964 | ||
1965 | static void | |
1966 | set_substitute_path_command (char *args, int from_tty) | |
1967 | { | |
2f61ca93 JB |
1968 | char **argv; |
1969 | struct substitute_path_rule *rule; | |
5b3fca71 | 1970 | struct cleanup *cleanup; |
2f61ca93 | 1971 | |
d1a41061 | 1972 | argv = gdb_buildargv (args); |
5b3fca71 | 1973 | cleanup = make_cleanup_freeargv (argv); |
2f61ca93 JB |
1974 | |
1975 | if (argv == NULL || argv[0] == NULL || argv [1] == NULL) | |
1976 | error (_("Incorrect usage, too few arguments in command")); | |
1977 | ||
1978 | if (argv[2] != NULL) | |
1979 | error (_("Incorrect usage, too many arguments in command")); | |
1980 | ||
1981 | if (*(argv[0]) == '\0') | |
1982 | error (_("First argument must be at least one character long")); | |
1983 | ||
1984 | /* Strip any trailing directory separator character in either FROM | |
1985 | or TO. The substitution rule already implicitly contains them. */ | |
1986 | strip_trailing_directory_separator (argv[0]); | |
1987 | strip_trailing_directory_separator (argv[1]); | |
1988 | ||
1989 | /* If a rule with the same "from" was previously defined, then | |
1990 | delete it. This new rule replaces it. */ | |
1991 | ||
1992 | rule = find_substitute_path_rule (argv[0]); | |
1993 | if (rule != NULL) | |
1994 | delete_substitute_path_rule (rule); | |
1995 | ||
1996 | /* Insert the new substitution rule. */ | |
1997 | ||
1998 | add_substitute_path_rule (argv[0], argv[1]); | |
c4e86dd4 | 1999 | forget_cached_source_info (); |
5b3fca71 TT |
2000 | |
2001 | do_cleanups (cleanup); | |
2f61ca93 JB |
2002 | } |
2003 | ||
c906108c SS |
2004 | \f |
2005 | void | |
fba45db2 | 2006 | _initialize_source (void) |
c906108c SS |
2007 | { |
2008 | struct cmd_list_element *c; | |
433759f7 | 2009 | |
c906108c SS |
2010 | current_source_symtab = 0; |
2011 | init_source_path (); | |
2012 | ||
2013 | /* The intention is to use POSIX Basic Regular Expressions. | |
2014 | Always use the GNU regex routine for consistency across all hosts. | |
2015 | Our current GNU regex.c does not have all the POSIX features, so this is | |
2016 | just an approximation. */ | |
2017 | re_set_syntax (RE_SYNTAX_GREP); | |
2018 | ||
1a966eab AC |
2019 | c = add_cmd ("directory", class_files, directory_command, _("\ |
2020 | Add directory DIR to beginning of search path for source files.\n\ | |
c906108c SS |
2021 | Forget cached info on source file locations and line positions.\n\ |
2022 | DIR can also be $cwd for the current working directory, or $cdir for the\n\ | |
2023 | directory in which the source file was compiled into object code.\n\ | |
1a966eab | 2024 | With no argument, reset the search path to $cdir:$cwd, the default."), |
c906108c SS |
2025 | &cmdlist); |
2026 | ||
2027 | if (dbx_commands) | |
c5aa993b | 2028 | add_com_alias ("use", "directory", class_files, 0); |
c906108c | 2029 | |
5ba2abeb | 2030 | set_cmd_completer (c, filename_completer); |
c906108c | 2031 | |
99e7ae30 DE |
2032 | add_setshow_optional_filename_cmd ("directories", |
2033 | class_files, | |
2034 | &source_path, | |
2035 | _("\ | |
2036 | Set the search path for finding source files."), | |
2037 | _("\ | |
2038 | Show the search path for finding source files."), | |
2039 | _("\ | |
c906108c | 2040 | $cwd in the path means the current working directory.\n\ |
99e7ae30 DE |
2041 | $cdir in the path means the compilation directory of the source file.\n\ |
2042 | GDB ensures the search path always ends with $cdir:$cwd by\n\ | |
2043 | appending these directories if necessary.\n\ | |
2044 | Setting the value to an empty string sets it to $cdir:$cwd, the default."), | |
2045 | set_directories_command, | |
2046 | show_directories_command, | |
2047 | &setlist, &showlist); | |
c906108c SS |
2048 | |
2049 | if (xdb_commands) | |
2050 | { | |
c5aa993b | 2051 | add_com_alias ("D", "directory", class_files, 0); |
99e7ae30 | 2052 | add_cmd ("ld", no_class, show_directories_1, _("\ |
1a966eab | 2053 | Current search path for finding source files.\n\ |
c906108c | 2054 | $cwd in the path means the current working directory.\n\ |
1a966eab | 2055 | $cdir in the path means the compilation directory of the source file."), |
c5aa993b | 2056 | &cmdlist); |
c906108c SS |
2057 | } |
2058 | ||
2059 | add_info ("source", source_info, | |
1bedd215 | 2060 | _("Information about the current source file.")); |
c906108c | 2061 | |
1bedd215 AC |
2062 | add_info ("line", line_info, _("\ |
2063 | Core addresses of the code for a source line.\n\ | |
c906108c SS |
2064 | Line can be specified as\n\ |
2065 | LINENUM, to list around that line in current file,\n\ | |
2066 | FILE:LINENUM, to list around that line in that file,\n\ | |
2067 | FUNCTION, to list around beginning of that function,\n\ | |
2068 | FILE:FUNCTION, to distinguish among like-named static functions.\n\ | |
c906108c SS |
2069 | Default is to describe the last source line that was listed.\n\n\ |
2070 | This sets the default address for \"x\" to the line's first instruction\n\ | |
2071 | so that \"x/i\" suffices to start examining the machine code.\n\ | |
1bedd215 | 2072 | The address is also stored as the value of \"$_\".")); |
c906108c | 2073 | |
1bedd215 AC |
2074 | add_com ("forward-search", class_files, forward_search_command, _("\ |
2075 | Search for regular expression (see regex(3)) from last line listed.\n\ | |
2076 | The matching line number is also stored as the value of \"$_\".")); | |
c906108c | 2077 | add_com_alias ("search", "forward-search", class_files, 0); |
1e96de83 | 2078 | add_com_alias ("fo", "forward-search", class_files, 1); |
c906108c | 2079 | |
1bedd215 AC |
2080 | add_com ("reverse-search", class_files, reverse_search_command, _("\ |
2081 | Search backward for regular expression (see regex(3)) from last line listed.\n\ | |
2082 | The matching line number is also stored as the value of \"$_\".")); | |
dd304d53 | 2083 | add_com_alias ("rev", "reverse-search", class_files, 1); |
c906108c SS |
2084 | |
2085 | if (xdb_commands) | |
2086 | { | |
c5aa993b JM |
2087 | add_com_alias ("/", "forward-search", class_files, 0); |
2088 | add_com_alias ("?", "reverse-search", class_files, 0); | |
c906108c SS |
2089 | } |
2090 | ||
7f7cc265 | 2091 | add_setshow_integer_cmd ("listsize", class_support, &lines_to_list, _("\ |
35096d9d | 2092 | Set number of source lines gdb will list by default."), _("\ |
f81d1120 PA |
2093 | Show number of source lines gdb will list by default."), _("\ |
2094 | Use this to choose how many source lines the \"list\" displays (unless\n\ | |
2095 | the \"list\" argument explicitly specifies some other number).\n\ | |
2096 | A value of \"unlimited\", or zero, means there's no limit."), | |
7f7cc265 PA |
2097 | NULL, |
2098 | show_lines_to_list, | |
2099 | &setlist, &showlist); | |
2f61ca93 JB |
2100 | |
2101 | add_cmd ("substitute-path", class_files, set_substitute_path_command, | |
2102 | _("\ | |
7ef2b397 JB |
2103 | Usage: set substitute-path FROM TO\n\ |
2104 | Add a substitution rule replacing FROM into TO in source file names.\n\ | |
2105 | If a substitution rule was previously set for FROM, the old rule\n\ | |
2106 | is replaced by the new one."), | |
2107 | &setlist); | |
2f61ca93 JB |
2108 | |
2109 | add_cmd ("substitute-path", class_files, unset_substitute_path_command, | |
2110 | _("\ | |
7ef2b397 JB |
2111 | Usage: unset substitute-path [FROM]\n\ |
2112 | Delete the rule for substituting FROM in source file names. If FROM\n\ | |
2113 | is not specified, all substituting rules are deleted.\n\ | |
2114 | If the debugger cannot find a rule for FROM, it will display a warning."), | |
2f61ca93 JB |
2115 | &unsetlist); |
2116 | ||
2117 | add_cmd ("substitute-path", class_files, show_substitute_path_command, | |
7ef2b397 JB |
2118 | _("\ |
2119 | Usage: show substitute-path [FROM]\n\ | |
2120 | Print the rule for substituting FROM in source file names. If FROM\n\ | |
2121 | is not specified, print all substitution rules."), | |
2f61ca93 | 2122 | &showlist); |
1b56eb55 JK |
2123 | |
2124 | add_setshow_enum_cmd ("filename-display", class_files, | |
2125 | filename_display_kind_names, | |
2126 | &filename_display_string, _("\ | |
2127 | Set how to display filenames."), _("\ | |
2128 | Show how to display filenames."), _("\ | |
2129 | filename-display can be:\n\ | |
2130 | basename - display only basename of a filename\n\ | |
2131 | relative - display a filename relative to the compilation directory\n\ | |
2132 | absolute - display an absolute filename\n\ | |
2133 | By default, relative filenames are displayed."), | |
2134 | NULL, | |
2135 | show_filename_display_string, | |
2136 | &setlist, &showlist); | |
2137 | ||
c906108c | 2138 | } |