Commit | Line | Data |
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c906108c | 1 | /* List lines of source files for GDB, the GNU debugger. |
32d0add0 | 2 | Copyright (C) 1986-2015 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" | |
614c279d | 29 | #include "filestuff.h" |
c906108c SS |
30 | |
31 | #include <sys/types.h> | |
53ce3c39 | 32 | #include <sys/stat.h> |
c906108c | 33 | #include <fcntl.h> |
c906108c | 34 | #include "gdbcore.h" |
88987551 | 35 | #include "gdb_regex.h" |
c906108c SS |
36 | #include "symfile.h" |
37 | #include "objfiles.h" | |
38 | #include "annotate.h" | |
39 | #include "gdbtypes.h" | |
c5f0f3d0 | 40 | #include "linespec.h" |
fe4e3eb8 | 41 | #include "filenames.h" /* for DOSish file names */ |
d75b5104 | 42 | #include "completer.h" |
8b93c638 | 43 | #include "ui-out.h" |
dbda9972 | 44 | #include "readline/readline.h" |
c906108c | 45 | |
c906108c SS |
46 | #define OPEN_MODE (O_RDONLY | O_BINARY) |
47 | #define FDOPEN_MODE FOPEN_RB | |
48 | ||
c378eb4e | 49 | /* Prototypes for exported functions. */ |
c906108c | 50 | |
a14ed312 | 51 | void _initialize_source (void); |
c906108c | 52 | |
c378eb4e | 53 | /* Prototypes for local functions. */ |
c906108c | 54 | |
a14ed312 | 55 | static int get_filename_and_charpos (struct symtab *, char **); |
c906108c | 56 | |
a14ed312 | 57 | static void reverse_search_command (char *, int); |
c906108c | 58 | |
a14ed312 | 59 | static void forward_search_command (char *, int); |
c906108c | 60 | |
a14ed312 | 61 | static void line_info (char *, int); |
c906108c | 62 | |
a14ed312 | 63 | static void source_info (char *, int); |
c906108c | 64 | |
c906108c SS |
65 | /* Path of directories to search for source files. |
66 | Same format as the PATH environment variable's value. */ | |
67 | ||
68 | char *source_path; | |
69 | ||
2f61ca93 JB |
70 | /* Support for source path substitution commands. */ |
71 | ||
72 | struct substitute_path_rule | |
73 | { | |
74 | char *from; | |
75 | char *to; | |
76 | struct substitute_path_rule *next; | |
77 | }; | |
78 | ||
79 | static struct substitute_path_rule *substitute_path_rules = NULL; | |
80 | ||
c906108c SS |
81 | /* Symtab of default file for listing lines of. */ |
82 | ||
0378c332 | 83 | static struct symtab *current_source_symtab; |
c906108c SS |
84 | |
85 | /* Default next line to list. */ | |
86 | ||
0378c332 | 87 | static int current_source_line; |
c906108c | 88 | |
6c95b8df PA |
89 | static struct program_space *current_source_pspace; |
90 | ||
c906108c SS |
91 | /* Default number of lines to print with commands like "list". |
92 | This is based on guessing how many long (i.e. more than chars_per_line | |
93 | characters) lines there will be. To be completely correct, "list" | |
94 | and friends should be rewritten to count characters and see where | |
95 | things are wrapping, but that would be a fair amount of work. */ | |
96 | ||
97 | int lines_to_list = 10; | |
920d2a44 AC |
98 | static void |
99 | show_lines_to_list (struct ui_file *file, int from_tty, | |
100 | struct cmd_list_element *c, const char *value) | |
101 | { | |
3e43a32a MS |
102 | fprintf_filtered (file, |
103 | _("Number of source lines gdb " | |
104 | "will list by default is %s.\n"), | |
920d2a44 AC |
105 | value); |
106 | } | |
c906108c | 107 | |
1b56eb55 JK |
108 | /* Possible values of 'set filename-display'. */ |
109 | static const char filename_display_basename[] = "basename"; | |
110 | static const char filename_display_relative[] = "relative"; | |
111 | static const char filename_display_absolute[] = "absolute"; | |
112 | ||
113 | static const char *const filename_display_kind_names[] = { | |
114 | filename_display_basename, | |
115 | filename_display_relative, | |
116 | filename_display_absolute, | |
117 | NULL | |
118 | }; | |
119 | ||
120 | static const char *filename_display_string = filename_display_relative; | |
121 | ||
122 | static void | |
123 | show_filename_display_string (struct ui_file *file, int from_tty, | |
124 | struct cmd_list_element *c, const char *value) | |
125 | { | |
126 | fprintf_filtered (file, _("Filenames are displayed as \"%s\".\n"), value); | |
127 | } | |
128 | ||
c906108c SS |
129 | /* Line number of last line printed. Default for various commands. |
130 | current_source_line is usually, but not always, the same as this. */ | |
131 | ||
132 | static int last_line_listed; | |
133 | ||
5166082f PA |
134 | /* First line number listed by last listing command. If 0, then no |
135 | source lines have yet been listed since the last time the current | |
136 | source line was changed. */ | |
c906108c SS |
137 | |
138 | static int first_line_listed; | |
139 | ||
140 | /* Saves the name of the last source file visited and a possible error code. | |
c378eb4e | 141 | Used to prevent repeating annoying "No such file or directories" msgs. */ |
c906108c SS |
142 | |
143 | static struct symtab *last_source_visited = NULL; | |
144 | static int last_source_error = 0; | |
c906108c | 145 | \f |
0378c332 FN |
146 | /* Return the first line listed by print_source_lines. |
147 | Used by command interpreters to request listing from | |
c378eb4e | 148 | a previous point. */ |
0378c332 FN |
149 | |
150 | int | |
151 | get_first_line_listed (void) | |
152 | { | |
153 | return first_line_listed; | |
154 | } | |
155 | ||
5166082f PA |
156 | /* Clear line listed range. This makes the next "list" center the |
157 | printed source lines around the current source line. */ | |
158 | ||
159 | static void | |
160 | clear_lines_listed_range (void) | |
161 | { | |
162 | first_line_listed = 0; | |
163 | last_line_listed = 0; | |
164 | } | |
165 | ||
0378c332 FN |
166 | /* Return the default number of lines to print with commands like the |
167 | cli "list". The caller of print_source_lines must use this to | |
168 | calculate the end line and use it in the call to print_source_lines | |
c378eb4e | 169 | as it does not automatically use this value. */ |
0378c332 FN |
170 | |
171 | int | |
172 | get_lines_to_list (void) | |
173 | { | |
174 | return lines_to_list; | |
175 | } | |
176 | ||
177 | /* Return the current source file for listing and next line to list. | |
c378eb4e | 178 | NOTE: The returned sal pc and end fields are not valid. */ |
0378c332 FN |
179 | |
180 | struct symtab_and_line | |
181 | get_current_source_symtab_and_line (void) | |
182 | { | |
245c7f48 | 183 | struct symtab_and_line cursal = { 0 }; |
0378c332 | 184 | |
6c95b8df | 185 | cursal.pspace = current_source_pspace; |
0378c332 FN |
186 | cursal.symtab = current_source_symtab; |
187 | cursal.line = current_source_line; | |
53cb0458 FN |
188 | cursal.pc = 0; |
189 | cursal.end = 0; | |
0378c332 FN |
190 | |
191 | return cursal; | |
192 | } | |
193 | ||
53cb0458 FN |
194 | /* If the current source file for listing is not set, try and get a default. |
195 | Usually called before get_current_source_symtab_and_line() is called. | |
0378c332 | 196 | It may err out if a default cannot be determined. |
53cb0458 FN |
197 | We must be cautious about where it is called, as it can recurse as the |
198 | process of determining a new default may call the caller! | |
199 | Use get_current_source_symtab_and_line only to get whatever | |
c378eb4e | 200 | we have without erroring out or trying to get a default. */ |
0378c332 | 201 | |
53cb0458 FN |
202 | void |
203 | set_default_source_symtab_and_line (void) | |
0378c332 | 204 | { |
0378c332 | 205 | if (!have_full_symbols () && !have_partial_symbols ()) |
8a3fe4f8 | 206 | error (_("No symbol table is loaded. Use the \"file\" command.")); |
0378c332 | 207 | |
c378eb4e | 208 | /* Pull in a current source symtab if necessary. */ |
0378c332 FN |
209 | if (current_source_symtab == 0) |
210 | select_source_symtab (0); | |
0378c332 FN |
211 | } |
212 | ||
213 | /* Return the current default file for listing and next line to list | |
214 | (the returned sal pc and end fields are not valid.) | |
53cb0458 | 215 | and set the current default to whatever is in SAL. |
c378eb4e | 216 | NOTE: The returned sal pc and end fields are not valid. */ |
0378c332 FN |
217 | |
218 | struct symtab_and_line | |
53cb0458 | 219 | set_current_source_symtab_and_line (const struct symtab_and_line *sal) |
0378c332 | 220 | { |
245c7f48 | 221 | struct symtab_and_line cursal = { 0 }; |
6c95b8df PA |
222 | |
223 | cursal.pspace = current_source_pspace; | |
0378c332 FN |
224 | cursal.symtab = current_source_symtab; |
225 | cursal.line = current_source_line; | |
6c95b8df PA |
226 | cursal.pc = 0; |
227 | cursal.end = 0; | |
0378c332 | 228 | |
6c95b8df | 229 | current_source_pspace = sal->pspace; |
0378c332 FN |
230 | current_source_symtab = sal->symtab; |
231 | current_source_line = sal->line; | |
6c95b8df | 232 | |
5166082f PA |
233 | /* Force the next "list" to center around the current line. */ |
234 | clear_lines_listed_range (); | |
235 | ||
0378c332 FN |
236 | return cursal; |
237 | } | |
238 | ||
c378eb4e | 239 | /* Reset any information stored about a default file and line to print. */ |
0378c332 FN |
240 | |
241 | void | |
242 | clear_current_source_symtab_and_line (void) | |
243 | { | |
244 | current_source_symtab = 0; | |
245 | current_source_line = 0; | |
246 | } | |
c5aa993b | 247 | |
c906108c SS |
248 | /* Set the source file default for the "list" command to be S. |
249 | ||
250 | If S is NULL, and we don't have a default, find one. This | |
251 | should only be called when the user actually tries to use the | |
252 | default, since we produce an error if we can't find a reasonable | |
253 | default. Also, since this can cause symbols to be read, doing it | |
254 | before we need to would make things slower than necessary. */ | |
255 | ||
256 | void | |
aa1ee363 | 257 | select_source_symtab (struct symtab *s) |
c906108c SS |
258 | { |
259 | struct symtabs_and_lines sals; | |
260 | struct symtab_and_line sal; | |
c906108c | 261 | struct objfile *ofp; |
43f3e411 | 262 | struct compunit_symtab *cu; |
c5aa993b | 263 | |
c906108c SS |
264 | if (s) |
265 | { | |
266 | current_source_symtab = s; | |
267 | current_source_line = 1; | |
6c95b8df | 268 | current_source_pspace = SYMTAB_PSPACE (s); |
c906108c SS |
269 | return; |
270 | } | |
271 | ||
272 | if (current_source_symtab) | |
273 | return; | |
274 | ||
275 | /* Make the default place to list be the function `main' | |
276 | if one exists. */ | |
d12307c1 | 277 | if (lookup_symbol (main_name (), 0, VAR_DOMAIN, 0).symbol) |
c906108c | 278 | { |
39cf75f7 DE |
279 | sals = decode_line_with_current_source (main_name (), |
280 | DECODE_LINE_FUNFIRSTLINE); | |
c906108c | 281 | sal = sals.sals[0]; |
b8c9b27d | 282 | xfree (sals.sals); |
6c95b8df | 283 | current_source_pspace = sal.pspace; |
c906108c SS |
284 | current_source_symtab = sal.symtab; |
285 | current_source_line = max (sal.line - (lines_to_list - 1), 1); | |
286 | if (current_source_symtab) | |
c5aa993b | 287 | return; |
c906108c | 288 | } |
c5aa993b | 289 | |
8340a3fb LM |
290 | /* Alright; find the last file in the symtab list (ignoring .h's |
291 | and namespace symtabs). */ | |
c906108c SS |
292 | |
293 | current_source_line = 1; | |
294 | ||
43f3e411 | 295 | ALL_FILETABS (ofp, cu, s) |
c906108c | 296 | { |
712a2e6d DE |
297 | const char *name = s->filename; |
298 | int len = strlen (name); | |
299 | ||
300 | if (!(len > 2 && (strcmp (&name[len - 2], ".h") == 0 | |
301 | || strcmp (name, "<<C++-namespaces>>") == 0))) | |
c906108c | 302 | { |
712a2e6d DE |
303 | current_source_pspace = current_program_space; |
304 | current_source_symtab = s; | |
c906108c SS |
305 | } |
306 | } | |
6c95b8df | 307 | |
c906108c SS |
308 | if (current_source_symtab) |
309 | return; | |
310 | ||
6c95b8df | 311 | ALL_OBJFILES (ofp) |
ccefe4c4 TT |
312 | { |
313 | if (ofp->sf) | |
314 | s = ofp->sf->qf->find_last_source_symtab (ofp); | |
315 | if (s) | |
316 | current_source_symtab = s; | |
317 | } | |
c906108c SS |
318 | if (current_source_symtab) |
319 | return; | |
320 | ||
8a3fe4f8 | 321 | error (_("Can't find a default source file")); |
c906108c SS |
322 | } |
323 | \f | |
99e7ae30 DE |
324 | /* Handler for "set directories path-list" command. |
325 | "set dir mumble" doesn't prepend paths, it resets the entire | |
326 | path list. The theory is that set(show(dir)) should be a no-op. */ | |
327 | ||
328 | static void | |
329 | set_directories_command (char *args, int from_tty, struct cmd_list_element *c) | |
330 | { | |
331 | /* This is the value that was set. | |
332 | It needs to be processed to maintain $cdir:$cwd and remove dups. */ | |
333 | char *set_path = source_path; | |
334 | ||
335 | /* We preserve the invariant that $cdir:$cwd begins life at the end of | |
336 | the list by calling init_source_path. If they appear earlier in | |
337 | SET_PATH then mod_path will move them appropriately. | |
338 | mod_path will also remove duplicates. */ | |
339 | init_source_path (); | |
340 | if (*set_path != '\0') | |
341 | mod_path (set_path, &source_path); | |
342 | ||
343 | xfree (set_path); | |
344 | } | |
345 | ||
346 | /* Print the list of source directories. | |
347 | This is used by the "ld" command, so it has the signature of a command | |
348 | function. */ | |
349 | ||
c906108c | 350 | static void |
99e7ae30 | 351 | show_directories_1 (char *ignore, int from_tty) |
c906108c SS |
352 | { |
353 | puts_filtered ("Source directories searched: "); | |
354 | puts_filtered (source_path); | |
355 | puts_filtered ("\n"); | |
356 | } | |
357 | ||
99e7ae30 DE |
358 | /* Handler for "show directories" command. */ |
359 | ||
360 | static void | |
361 | show_directories_command (struct ui_file *file, int from_tty, | |
362 | struct cmd_list_element *c, const char *value) | |
363 | { | |
364 | show_directories_1 (NULL, from_tty); | |
365 | } | |
366 | ||
00174a86 TT |
367 | /* Forget line positions and file names for the symtabs in a |
368 | particular objfile. */ | |
369 | ||
370 | void | |
371 | forget_cached_source_info_for_objfile (struct objfile *objfile) | |
372 | { | |
43f3e411 | 373 | struct compunit_symtab *cu; |
00174a86 TT |
374 | struct symtab *s; |
375 | ||
43f3e411 | 376 | ALL_OBJFILE_FILETABS (objfile, cu, s) |
00174a86 TT |
377 | { |
378 | if (s->line_charpos != NULL) | |
379 | { | |
380 | xfree (s->line_charpos); | |
381 | s->line_charpos = NULL; | |
382 | } | |
383 | if (s->fullname != NULL) | |
384 | { | |
385 | xfree (s->fullname); | |
386 | s->fullname = NULL; | |
387 | } | |
00174a86 | 388 | } |
6f809020 DE |
389 | |
390 | if (objfile->sf) | |
391 | objfile->sf->qf->forget_cached_source_info (objfile); | |
00174a86 TT |
392 | } |
393 | ||
c906108c SS |
394 | /* Forget what we learned about line positions in source files, and |
395 | which directories contain them; must check again now since files | |
396 | may be found in a different directory now. */ | |
397 | ||
398 | void | |
fba45db2 | 399 | forget_cached_source_info (void) |
c906108c | 400 | { |
6c95b8df | 401 | struct program_space *pspace; |
52f0bd74 | 402 | struct objfile *objfile; |
c906108c | 403 | |
6c95b8df PA |
404 | ALL_PSPACES (pspace) |
405 | ALL_PSPACE_OBJFILES (pspace, objfile) | |
c906108c | 406 | { |
00174a86 | 407 | forget_cached_source_info_for_objfile (objfile); |
c906108c | 408 | } |
c4e86dd4 DJ |
409 | |
410 | last_source_visited = NULL; | |
c906108c SS |
411 | } |
412 | ||
413 | void | |
fba45db2 | 414 | init_source_path (void) |
c906108c SS |
415 | { |
416 | char buf[20]; | |
417 | ||
08850b56 | 418 | xsnprintf (buf, sizeof (buf), "$cdir%c$cwd", DIRNAME_SEPARATOR); |
4fcf66da | 419 | source_path = xstrdup (buf); |
c906108c SS |
420 | forget_cached_source_info (); |
421 | } | |
422 | ||
423 | /* Add zero or more directories to the front of the source path. */ | |
c5aa993b | 424 | |
28da1647 | 425 | static void |
fba45db2 | 426 | directory_command (char *dirname, int from_tty) |
c906108c SS |
427 | { |
428 | dont_repeat (); | |
c378eb4e | 429 | /* FIXME, this goes to "delete dir"... */ |
c906108c SS |
430 | if (dirname == 0) |
431 | { | |
80618b99 | 432 | if (!from_tty || query (_("Reinitialize source path to empty? "))) |
c906108c | 433 | { |
b8c9b27d | 434 | xfree (source_path); |
c906108c SS |
435 | init_source_path (); |
436 | } | |
437 | } | |
438 | else | |
439 | { | |
440 | mod_path (dirname, &source_path); | |
c4e86dd4 | 441 | forget_cached_source_info (); |
c906108c SS |
442 | } |
443 | if (from_tty) | |
99e7ae30 | 444 | show_directories_1 ((char *) 0, from_tty); |
c906108c SS |
445 | } |
446 | ||
13d35ae5 AS |
447 | /* Add a path given with the -d command line switch. |
448 | This will not be quoted so we must not treat spaces as separators. */ | |
449 | ||
450 | void | |
451 | directory_switch (char *dirname, int from_tty) | |
452 | { | |
453 | add_path (dirname, &source_path, 0); | |
454 | } | |
455 | ||
c906108c SS |
456 | /* Add zero or more directories to the front of an arbitrary path. */ |
457 | ||
458 | void | |
fba45db2 | 459 | mod_path (char *dirname, char **which_path) |
c04e0a08 JJ |
460 | { |
461 | add_path (dirname, which_path, 1); | |
462 | } | |
463 | ||
464 | /* Workhorse of mod_path. Takes an extra argument to determine | |
465 | if dirname should be parsed for separators that indicate multiple | |
466 | directories. This allows for interfaces that pre-parse the dirname | |
467 | and allow specification of traditional separator characters such | |
c378eb4e | 468 | as space or tab. */ |
c04e0a08 JJ |
469 | |
470 | void | |
471 | add_path (char *dirname, char **which_path, int parse_separators) | |
c906108c SS |
472 | { |
473 | char *old = *which_path; | |
474 | int prefix = 0; | |
e4ab2fad JK |
475 | VEC (char_ptr) *dir_vec = NULL; |
476 | struct cleanup *back_to; | |
477 | int ix; | |
478 | char *name; | |
c906108c SS |
479 | |
480 | if (dirname == 0) | |
481 | return; | |
482 | ||
13d35ae5 AS |
483 | if (parse_separators) |
484 | { | |
e4ab2fad JK |
485 | char **argv, **argvp; |
486 | ||
13d35ae5 | 487 | /* This will properly parse the space and tab separators |
e4ab2fad | 488 | and any quotes that may exist. */ |
d1a41061 | 489 | argv = gdb_buildargv (dirname); |
13d35ae5 | 490 | |
e4ab2fad JK |
491 | for (argvp = argv; *argvp; argvp++) |
492 | dirnames_to_char_ptr_vec_append (&dir_vec, *argvp); | |
493 | ||
494 | freeargv (argv); | |
13d35ae5 AS |
495 | } |
496 | else | |
e4ab2fad JK |
497 | VEC_safe_push (char_ptr, dir_vec, xstrdup (dirname)); |
498 | back_to = make_cleanup_free_char_ptr_vec (dir_vec); | |
c906108c | 499 | |
e4ab2fad | 500 | for (ix = 0; VEC_iterate (char_ptr, dir_vec, ix, name); ++ix) |
c906108c | 501 | { |
aa1ee363 | 502 | char *p; |
c906108c SS |
503 | struct stat st; |
504 | ||
e4ab2fad JK |
505 | /* Spaces and tabs will have been removed by buildargv(). |
506 | NAME is the start of the directory. | |
507 | P is the '\0' following the end. */ | |
508 | p = name + strlen (name); | |
13d35ae5 AS |
509 | |
510 | while (!(IS_DIR_SEPARATOR (*name) && p <= name + 1) /* "/" */ | |
c3690141 | 511 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
7be570e7 | 512 | /* On MS-DOS and MS-Windows, h:\ is different from h: */ |
13d35ae5 | 513 | && !(p == name + 3 && name[1] == ':') /* "d:/" */ |
7be570e7 | 514 | #endif |
13d35ae5 | 515 | && IS_DIR_SEPARATOR (p[-1])) |
c378eb4e | 516 | /* Sigh. "foo/" => "foo" */ |
c906108c | 517 | --p; |
c906108c SS |
518 | *p = '\0'; |
519 | ||
7be570e7 | 520 | while (p > name && p[-1] == '.') |
c906108c SS |
521 | { |
522 | if (p - name == 1) | |
523 | { | |
524 | /* "." => getwd (). */ | |
525 | name = current_directory; | |
526 | goto append; | |
527 | } | |
fe4e3eb8 | 528 | else if (p > name + 1 && IS_DIR_SEPARATOR (p[-2])) |
c906108c SS |
529 | { |
530 | if (p - name == 2) | |
531 | { | |
532 | /* "/." => "/". */ | |
533 | *--p = '\0'; | |
534 | goto append; | |
535 | } | |
536 | else | |
537 | { | |
538 | /* "...foo/." => "...foo". */ | |
539 | p -= 2; | |
540 | *p = '\0'; | |
541 | continue; | |
542 | } | |
543 | } | |
544 | else | |
545 | break; | |
546 | } | |
547 | ||
548 | if (name[0] == '~') | |
549 | name = tilde_expand (name); | |
c3690141 | 550 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
fe4e3eb8 | 551 | else if (IS_ABSOLUTE_PATH (name) && p == name + 2) /* "d:" => "d:." */ |
1754f103 | 552 | name = concat (name, ".", (char *)NULL); |
7be570e7 | 553 | #endif |
fe4e3eb8 | 554 | else if (!IS_ABSOLUTE_PATH (name) && name[0] != '$') |
1754f103 | 555 | name = concat (current_directory, SLASH_STRING, name, (char *)NULL); |
c906108c SS |
556 | else |
557 | name = savestring (name, p - name); | |
b8c9b27d | 558 | make_cleanup (xfree, name); |
c906108c SS |
559 | |
560 | /* Unless it's a variable, check existence. */ | |
c5aa993b JM |
561 | if (name[0] != '$') |
562 | { | |
563 | /* These are warnings, not errors, since we don't want a | |
564 | non-existent directory in a .gdbinit file to stop processing | |
565 | of the .gdbinit file. | |
566 | ||
567 | Whether they get added to the path is more debatable. Current | |
568 | answer is yes, in case the user wants to go make the directory | |
569 | or whatever. If the directory continues to not exist/not be | |
570 | a directory/etc, then having them in the path should be | |
571 | harmless. */ | |
572 | if (stat (name, &st) < 0) | |
573 | { | |
574 | int save_errno = errno; | |
433759f7 | 575 | |
c5aa993b JM |
576 | fprintf_unfiltered (gdb_stderr, "Warning: "); |
577 | print_sys_errmsg (name, save_errno); | |
578 | } | |
579 | else if ((st.st_mode & S_IFMT) != S_IFDIR) | |
8a3fe4f8 | 580 | warning (_("%s is not a directory."), name); |
c5aa993b | 581 | } |
c906108c SS |
582 | |
583 | append: | |
584 | { | |
aa1ee363 | 585 | unsigned int len = strlen (name); |
5ee4ed9f | 586 | char tinybuf[2]; |
c906108c SS |
587 | |
588 | p = *which_path; | |
5e3f4fab | 589 | while (1) |
c906108c | 590 | { |
5e3f4fab EBM |
591 | /* FIXME: we should use realpath() or its work-alike |
592 | before comparing. Then all the code above which | |
593 | removes excess slashes and dots could simply go away. */ | |
594 | if (!filename_ncmp (p, name, len) | |
595 | && (p[len] == '\0' || p[len] == DIRNAME_SEPARATOR)) | |
596 | { | |
597 | /* Found it in the search path, remove old copy. */ | |
598 | if (p > *which_path) | |
599 | { | |
600 | /* Back over leading separator. */ | |
601 | p--; | |
602 | } | |
603 | if (prefix > p - *which_path) | |
604 | { | |
605 | /* Same dir twice in one cmd. */ | |
606 | goto skip_dup; | |
607 | } | |
608 | /* Copy from next '\0' or ':'. */ | |
609 | memmove (p, &p[len + 1], strlen (&p[len + 1]) + 1); | |
610 | } | |
611 | p = strchr (p, DIRNAME_SEPARATOR); | |
612 | if (p != 0) | |
613 | ++p; | |
614 | else | |
615 | break; | |
c906108c | 616 | } |
c906108c | 617 | |
5ee4ed9f JK |
618 | tinybuf[0] = DIRNAME_SEPARATOR; |
619 | tinybuf[1] = '\0'; | |
c906108c | 620 | |
5ee4ed9f JK |
621 | /* If we have already tacked on a name(s) in this command, |
622 | be sure they stay on the front as we tack on some | |
623 | more. */ | |
624 | if (prefix) | |
625 | { | |
626 | char *temp, c; | |
627 | ||
628 | c = old[prefix]; | |
629 | old[prefix] = '\0'; | |
630 | temp = concat (old, tinybuf, name, (char *)NULL); | |
631 | old[prefix] = c; | |
632 | *which_path = concat (temp, "", &old[prefix], (char *) NULL); | |
633 | prefix = strlen (temp); | |
634 | xfree (temp); | |
635 | } | |
636 | else | |
637 | { | |
638 | *which_path = concat (name, (old[0] ? tinybuf : old), | |
639 | old, (char *)NULL); | |
640 | prefix = strlen (name); | |
c906108c | 641 | } |
5ee4ed9f JK |
642 | xfree (old); |
643 | old = *which_path; | |
c906108c | 644 | } |
82ae4854 | 645 | skip_dup: |
b27cf2b3 | 646 | ; |
c5aa993b | 647 | } |
e4ab2fad JK |
648 | |
649 | do_cleanups (back_to); | |
c906108c SS |
650 | } |
651 | ||
652 | ||
653 | static void | |
fba45db2 | 654 | source_info (char *ignore, int from_tty) |
c906108c | 655 | { |
52f0bd74 | 656 | struct symtab *s = current_source_symtab; |
b6577aab | 657 | struct compunit_symtab *cust; |
c906108c SS |
658 | |
659 | if (!s) | |
660 | { | |
a3f17187 | 661 | printf_filtered (_("No current source file.\n")); |
c906108c SS |
662 | return; |
663 | } | |
b6577aab DE |
664 | |
665 | cust = SYMTAB_COMPUNIT (s); | |
a3f17187 | 666 | printf_filtered (_("Current source file is %s\n"), s->filename); |
ee6f8984 DE |
667 | if (SYMTAB_DIRNAME (s) != NULL) |
668 | printf_filtered (_("Compilation directory is %s\n"), SYMTAB_DIRNAME (s)); | |
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 | 675 | printf_filtered (_("Source language is %s.\n"), language_str (s->language)); |
b6577aab DE |
676 | printf_filtered (_("Producer is %s.\n"), |
677 | COMPUNIT_PRODUCER (cust) != NULL | |
678 | ? COMPUNIT_PRODUCER (cust) : _("unknown")); | |
43f3e411 | 679 | printf_filtered (_("Compiled with %s debugging format.\n"), |
b6577aab | 680 | COMPUNIT_DEBUGFORMAT (cust)); |
a3f17187 | 681 | printf_filtered (_("%s preprocessor macro info.\n"), |
b6577aab | 682 | COMPUNIT_MACRO_TABLE (cust) != NULL |
43f3e411 | 683 | ? "Includes" : "Does not include"); |
c906108c | 684 | } |
c5aa993b | 685 | \f |
c906108c | 686 | |
c378eb4e | 687 | /* Return True if the file NAME exists and is a regular file. */ |
1da1a192 JB |
688 | static int |
689 | is_regular_file (const char *name) | |
690 | { | |
691 | struct stat st; | |
692 | const int status = stat (name, &st); | |
693 | ||
694 | /* Stat should never fail except when the file does not exist. | |
695 | If stat fails, analyze the source of error and return True | |
696 | unless the file does not exist, to avoid returning false results | |
c378eb4e MS |
697 | on obscure systems where stat does not work as expected. */ |
698 | ||
1da1a192 JB |
699 | if (status != 0) |
700 | return (errno != ENOENT); | |
701 | ||
702 | return S_ISREG (st.st_mode); | |
703 | } | |
c906108c | 704 | |
c906108c | 705 | /* Open a file named STRING, searching path PATH (dir names sep by some char) |
fbdebf46 JK |
706 | using mode MODE in the calls to open. You cannot use this function to |
707 | create files (O_CREAT). | |
c906108c | 708 | |
014d698b EZ |
709 | OPTS specifies the function behaviour in specific cases. |
710 | ||
711 | If OPF_TRY_CWD_FIRST, try to open ./STRING before searching PATH. | |
c906108c | 712 | (ie pretend the first element of PATH is "."). This also indicates |
e3e06db3 DE |
713 | that, unless OPF_SEARCH_IN_PATH is also specified, a slash in STRING |
714 | disables searching of the path (this is so that "exec-file ./foo" or | |
715 | "symbol-file ./foo" insures that you get that particular version of | |
716 | foo or an error message). | |
c906108c | 717 | |
014d698b EZ |
718 | If OPTS has OPF_SEARCH_IN_PATH set, absolute names will also be |
719 | searched in path (we usually want this for source files but not for | |
720 | executables). | |
721 | ||
e7a8479f | 722 | If FILENAME_OPENED is non-null, set it to a newly allocated string naming |
a89f66e4 | 723 | the actual file opened (this string will always start with a "/"). We |
c906108c SS |
724 | have to take special pains to avoid doubling the "/" between the directory |
725 | and the file, sigh! Emacs gets confuzzed by this when we print the | |
726 | source file name!!! | |
727 | ||
492c0ab7 JK |
728 | If OPTS has OPF_RETURN_REALPATH set return FILENAME_OPENED resolved by |
729 | gdb_realpath. Even without OPF_RETURN_REALPATH this function still returns | |
730 | filename starting with "/". If FILENAME_OPENED is NULL this option has no | |
731 | effect. | |
1f0c4988 | 732 | |
c906108c SS |
733 | If a file is found, return the descriptor. |
734 | Otherwise, return -1, with errno set for the last name we tried to open. */ | |
735 | ||
736 | /* >>>> This should only allow files of certain types, | |
c378eb4e | 737 | >>>> eg executable, non-directory. */ |
c906108c | 738 | int |
014d698b | 739 | openp (const char *path, int opts, const char *string, |
fbdebf46 | 740 | int mode, char **filename_opened) |
c906108c | 741 | { |
52f0bd74 AC |
742 | int fd; |
743 | char *filename; | |
c906108c | 744 | int alloclen; |
e4ab2fad JK |
745 | VEC (char_ptr) *dir_vec; |
746 | struct cleanup *back_to; | |
747 | int ix; | |
748 | char *dir; | |
79b289e2 PA |
749 | /* The errno set for the last name we tried to open (and |
750 | failed). */ | |
751 | int last_errno = 0; | |
c906108c | 752 | |
fbdebf46 JK |
753 | /* The open syscall MODE parameter is not specified. */ |
754 | gdb_assert ((mode & O_CREAT) == 0); | |
f91e5ac3 JB |
755 | gdb_assert (string != NULL); |
756 | ||
757 | /* A file with an empty name cannot possibly exist. Report a failure | |
758 | without further checking. | |
759 | ||
760 | This is an optimization which also defends us against buggy | |
761 | implementations of the "stat" function. For instance, we have | |
762 | noticed that a MinGW debugger built on Windows XP 32bits crashes | |
763 | when the debugger is started with an empty argument. */ | |
764 | if (string[0] == '\0') | |
765 | { | |
766 | errno = ENOENT; | |
767 | return -1; | |
768 | } | |
fbdebf46 | 769 | |
c906108c SS |
770 | if (!path) |
771 | path = "."; | |
772 | ||
c906108c | 773 | mode |= O_BINARY; |
c906108c | 774 | |
014d698b | 775 | if ((opts & OPF_TRY_CWD_FIRST) || IS_ABSOLUTE_PATH (string)) |
c906108c SS |
776 | { |
777 | int i; | |
072b1022 DJ |
778 | |
779 | if (is_regular_file (string)) | |
780 | { | |
224c3ddb | 781 | filename = (char *) alloca (strlen (string) + 1); |
072b1022 | 782 | strcpy (filename, string); |
614c279d | 783 | fd = gdb_open_cloexec (filename, mode, 0); |
072b1022 DJ |
784 | if (fd >= 0) |
785 | goto done; | |
786 | } | |
787 | else | |
3f565f1e DJ |
788 | { |
789 | filename = NULL; | |
790 | fd = -1; | |
791 | } | |
79b289e2 | 792 | last_errno = errno; |
072b1022 | 793 | |
014d698b EZ |
794 | if (!(opts & OPF_SEARCH_IN_PATH)) |
795 | for (i = 0; string[i]; i++) | |
796 | if (IS_DIR_SEPARATOR (string[i])) | |
797 | goto done; | |
c906108c SS |
798 | } |
799 | ||
e6d9b9c2 DE |
800 | /* For dos paths, d:/foo -> /foo, and d:foo -> foo. */ |
801 | if (HAS_DRIVE_SPEC (string)) | |
802 | string = STRIP_DRIVE_SPEC (string); | |
803 | ||
c378eb4e | 804 | /* /foo => foo, to avoid multiple slashes that Emacs doesn't like. */ |
014d698b EZ |
805 | while (IS_DIR_SEPARATOR(string[0])) |
806 | string++; | |
807 | ||
c906108c | 808 | /* ./foo => foo */ |
fe4e3eb8 | 809 | while (string[0] == '.' && IS_DIR_SEPARATOR (string[1])) |
c906108c SS |
810 | string += 2; |
811 | ||
812 | alloclen = strlen (path) + strlen (string) + 2; | |
224c3ddb | 813 | filename = (char *) alloca (alloclen); |
c906108c | 814 | fd = -1; |
79b289e2 | 815 | last_errno = ENOENT; |
e4ab2fad JK |
816 | |
817 | dir_vec = dirnames_to_char_ptr_vec (path); | |
818 | back_to = make_cleanup_free_char_ptr_vec (dir_vec); | |
819 | ||
820 | for (ix = 0; VEC_iterate (char_ptr, dir_vec, ix, dir); ++ix) | |
c906108c | 821 | { |
e4ab2fad | 822 | size_t len = strlen (dir); |
c906108c | 823 | |
e4ab2fad | 824 | if (strcmp (dir, "$cwd") == 0) |
c5aa993b JM |
825 | { |
826 | /* Name is $cwd -- insert current directory name instead. */ | |
827 | int newlen; | |
828 | ||
c378eb4e | 829 | /* First, realloc the filename buffer if too short. */ |
c5aa993b JM |
830 | len = strlen (current_directory); |
831 | newlen = len + strlen (string) + 2; | |
832 | if (newlen > alloclen) | |
833 | { | |
834 | alloclen = newlen; | |
224c3ddb | 835 | filename = (char *) alloca (alloclen); |
c5aa993b JM |
836 | } |
837 | strcpy (filename, current_directory); | |
838 | } | |
ebd86fb5 TJB |
839 | else if (strchr(dir, '~')) |
840 | { | |
841 | /* See whether we need to expand the tilde. */ | |
842 | int newlen; | |
843 | char *tilde_expanded; | |
844 | ||
845 | tilde_expanded = tilde_expand (dir); | |
846 | ||
847 | /* First, realloc the filename buffer if too short. */ | |
848 | len = strlen (tilde_expanded); | |
849 | newlen = len + strlen (string) + 2; | |
850 | if (newlen > alloclen) | |
851 | { | |
852 | alloclen = newlen; | |
224c3ddb | 853 | filename = (char *) alloca (alloclen); |
ebd86fb5 TJB |
854 | } |
855 | strcpy (filename, tilde_expanded); | |
856 | xfree (tilde_expanded); | |
857 | } | |
c5aa993b JM |
858 | else |
859 | { | |
860 | /* Normal file name in path -- just use it. */ | |
e4ab2fad | 861 | strcpy (filename, dir); |
08001717 DE |
862 | |
863 | /* Don't search $cdir. It's also a magic path like $cwd, but we | |
864 | don't have enough information to expand it. The user *could* | |
865 | have an actual directory named '$cdir' but handling that would | |
866 | be confusing, it would mean different things in different | |
867 | contexts. If the user really has '$cdir' one can use './$cdir'. | |
868 | We can get $cdir when loading scripts. When loading source files | |
869 | $cdir must have already been expanded to the correct value. */ | |
e4ab2fad | 870 | if (strcmp (dir, "$cdir") == 0) |
08001717 | 871 | continue; |
c906108c | 872 | } |
c906108c | 873 | |
c378eb4e | 874 | /* Remove trailing slashes. */ |
fe4e3eb8 | 875 | while (len > 0 && IS_DIR_SEPARATOR (filename[len - 1])) |
c906108c SS |
876 | filename[--len] = 0; |
877 | ||
c5aa993b | 878 | strcat (filename + len, SLASH_STRING); |
c906108c SS |
879 | strcat (filename, string); |
880 | ||
1da1a192 | 881 | if (is_regular_file (filename)) |
5e987968 | 882 | { |
614c279d | 883 | fd = gdb_open_cloexec (filename, mode, 0); |
5e987968 AS |
884 | if (fd >= 0) |
885 | break; | |
79b289e2 | 886 | last_errno = errno; |
5e987968 | 887 | } |
c906108c SS |
888 | } |
889 | ||
e4ab2fad JK |
890 | do_cleanups (back_to); |
891 | ||
c5aa993b | 892 | done: |
c906108c SS |
893 | if (filename_opened) |
894 | { | |
f5b95b50 | 895 | /* If a file was opened, canonicalize its filename. */ |
c906108c | 896 | if (fd < 0) |
1f8cc6db | 897 | *filename_opened = NULL; |
04affae3 JK |
898 | else if ((opts & OPF_RETURN_REALPATH) != 0) |
899 | *filename_opened = gdb_realpath (filename); | |
c906108c | 900 | else |
04affae3 | 901 | *filename_opened = gdb_abspath (filename); |
c906108c | 902 | } |
c906108c | 903 | |
79b289e2 | 904 | errno = last_errno; |
c906108c SS |
905 | return fd; |
906 | } | |
907 | ||
c5aa993b | 908 | |
c906108c SS |
909 | /* This is essentially a convenience, for clients that want the behaviour |
910 | of openp, using source_path, but that really don't want the file to be | |
911 | opened but want instead just to know what the full pathname is (as | |
912 | qualified against source_path). | |
913 | ||
914 | The current working directory is searched first. | |
915 | ||
916 | If the file was found, this function returns 1, and FULL_PATHNAME is | |
917 | set to the fully-qualified pathname. | |
918 | ||
5e987968 | 919 | Else, this functions returns 0, and FULL_PATHNAME is set to NULL. */ |
c906108c | 920 | int |
24f81874 | 921 | source_full_path_of (const char *filename, char **full_pathname) |
c906108c | 922 | { |
c5aa993b | 923 | int fd; |
c906108c | 924 | |
492c0ab7 JK |
925 | fd = openp (source_path, |
926 | OPF_TRY_CWD_FIRST | OPF_SEARCH_IN_PATH | OPF_RETURN_REALPATH, | |
927 | filename, O_RDONLY, full_pathname); | |
c906108c SS |
928 | if (fd < 0) |
929 | { | |
930 | *full_pathname = NULL; | |
931 | return 0; | |
932 | } | |
933 | ||
934 | close (fd); | |
935 | return 1; | |
936 | } | |
937 | ||
2f61ca93 JB |
938 | /* Return non-zero if RULE matches PATH, that is if the rule can be |
939 | applied to PATH. */ | |
940 | ||
941 | static int | |
942 | substitute_path_rule_matches (const struct substitute_path_rule *rule, | |
943 | const char *path) | |
944 | { | |
945 | const int from_len = strlen (rule->from); | |
946 | const int path_len = strlen (path); | |
2f61ca93 JB |
947 | |
948 | if (path_len < from_len) | |
949 | return 0; | |
950 | ||
951 | /* The substitution rules are anchored at the start of the path, | |
486ef3b9 | 952 | so the path should start with rule->from. */ |
2f61ca93 | 953 | |
486ef3b9 | 954 | if (filename_ncmp (path, rule->from, from_len) != 0) |
2f61ca93 JB |
955 | return 0; |
956 | ||
957 | /* Make sure that the region in the path that matches the substitution | |
958 | rule is immediately followed by a directory separator (or the end of | |
959 | string character). */ | |
230cd560 | 960 | |
2f61ca93 JB |
961 | if (path[from_len] != '\0' && !IS_DIR_SEPARATOR (path[from_len])) |
962 | return 0; | |
963 | ||
964 | return 1; | |
965 | } | |
966 | ||
967 | /* Find the substitute-path rule that applies to PATH and return it. | |
968 | Return NULL if no rule applies. */ | |
969 | ||
970 | static struct substitute_path_rule * | |
971 | get_substitute_path_rule (const char *path) | |
972 | { | |
973 | struct substitute_path_rule *rule = substitute_path_rules; | |
974 | ||
975 | while (rule != NULL && !substitute_path_rule_matches (rule, path)) | |
976 | rule = rule->next; | |
977 | ||
978 | return rule; | |
979 | } | |
980 | ||
981 | /* If the user specified a source path substitution rule that applies | |
982 | to PATH, then apply it and return the new path. This new path must | |
c378eb4e | 983 | be deallocated afterwards. |
2f61ca93 JB |
984 | |
985 | Return NULL if no substitution rule was specified by the user, | |
986 | or if no rule applied to the given PATH. */ | |
987 | ||
fbd9ab74 | 988 | char * |
2f61ca93 JB |
989 | rewrite_source_path (const char *path) |
990 | { | |
991 | const struct substitute_path_rule *rule = get_substitute_path_rule (path); | |
992 | char *new_path; | |
993 | int from_len; | |
994 | ||
995 | if (rule == NULL) | |
996 | return NULL; | |
997 | ||
998 | from_len = strlen (rule->from); | |
999 | ||
1000 | /* Compute the rewritten path and return it. */ | |
1001 | ||
1002 | new_path = | |
1003 | (char *) xmalloc (strlen (path) + 1 + strlen (rule->to) - from_len); | |
1004 | strcpy (new_path, rule->to); | |
1005 | strcat (new_path, path + from_len); | |
1006 | ||
1007 | return new_path; | |
1008 | } | |
1009 | ||
ccefe4c4 | 1010 | int |
e2357892 | 1011 | find_and_open_source (const char *filename, |
5e987968 AS |
1012 | const char *dirname, |
1013 | char **fullname) | |
c906108c SS |
1014 | { |
1015 | char *path = source_path; | |
31889e00 | 1016 | const char *p; |
c906108c | 1017 | int result; |
795d915c | 1018 | struct cleanup *cleanup; |
c906108c | 1019 | |
c378eb4e | 1020 | /* Quick way out if we already know its full name. */ |
2f61ca93 | 1021 | |
57c22c6c | 1022 | if (*fullname) |
c906108c | 1023 | { |
2f61ca93 JB |
1024 | /* The user may have requested that source paths be rewritten |
1025 | according to substitution rules he provided. If a substitution | |
1026 | rule applies to this path, then apply it. */ | |
1027 | char *rewritten_fullname = rewrite_source_path (*fullname); | |
1028 | ||
1029 | if (rewritten_fullname != NULL) | |
1030 | { | |
1031 | xfree (*fullname); | |
1032 | *fullname = rewritten_fullname; | |
1033 | } | |
1034 | ||
614c279d | 1035 | result = gdb_open_cloexec (*fullname, OPEN_MODE, 0); |
c906108c | 1036 | if (result >= 0) |
bc3aa6c3 | 1037 | { |
f5b95b50 | 1038 | char *lpath = gdb_realpath (*fullname); |
bc3aa6c3 DE |
1039 | |
1040 | xfree (*fullname); | |
1041 | *fullname = lpath; | |
1042 | return result; | |
1043 | } | |
1044 | ||
c378eb4e | 1045 | /* Didn't work -- free old one, try again. */ |
2dc74dc1 | 1046 | xfree (*fullname); |
57c22c6c | 1047 | *fullname = NULL; |
c906108c SS |
1048 | } |
1049 | ||
795d915c TT |
1050 | cleanup = make_cleanup (null_cleanup, NULL); |
1051 | ||
57c22c6c | 1052 | if (dirname != NULL) |
c906108c | 1053 | { |
2f61ca93 JB |
1054 | /* If necessary, rewrite the compilation directory name according |
1055 | to the source path substitution rules specified by the user. */ | |
1056 | ||
1057 | char *rewritten_dirname = rewrite_source_path (dirname); | |
1058 | ||
1059 | if (rewritten_dirname != NULL) | |
1060 | { | |
1061 | make_cleanup (xfree, rewritten_dirname); | |
1062 | dirname = rewritten_dirname; | |
1063 | } | |
1064 | ||
c378eb4e MS |
1065 | /* Replace a path entry of $cdir with the compilation directory |
1066 | name. */ | |
c906108c SS |
1067 | #define cdir_len 5 |
1068 | /* We cast strstr's result in case an ANSIhole has made it const, | |
c378eb4e | 1069 | which produces a "required warning" when assigned to a nonconst. */ |
c5aa993b | 1070 | p = (char *) strstr (source_path, "$cdir"); |
c906108c | 1071 | if (p && (p == path || p[-1] == DIRNAME_SEPARATOR) |
c5aa993b | 1072 | && (p[cdir_len] == DIRNAME_SEPARATOR || p[cdir_len] == '\0')) |
c906108c SS |
1073 | { |
1074 | int len; | |
1075 | ||
1076 | path = (char *) | |
57c22c6c | 1077 | alloca (strlen (source_path) + 1 + strlen (dirname) + 1); |
c906108c | 1078 | len = p - source_path; |
c5aa993b | 1079 | strncpy (path, source_path, len); /* Before $cdir */ |
3e43a32a MS |
1080 | strcpy (path + len, dirname); /* new stuff */ |
1081 | strcat (path + len, source_path + len + cdir_len); /* After | |
1082 | $cdir */ | |
c906108c SS |
1083 | } |
1084 | } | |
8da2a1df DJ |
1085 | |
1086 | if (IS_ABSOLUTE_PATH (filename)) | |
56163ce1 | 1087 | { |
8da2a1df DJ |
1088 | /* If filename is absolute path, try the source path |
1089 | substitution on it. */ | |
56163ce1 JB |
1090 | char *rewritten_filename = rewrite_source_path (filename); |
1091 | ||
1092 | if (rewritten_filename != NULL) | |
1093 | { | |
1094 | make_cleanup (xfree, rewritten_filename); | |
1095 | filename = rewritten_filename; | |
1096 | } | |
1097 | } | |
c906108c | 1098 | |
492c0ab7 JK |
1099 | result = openp (path, OPF_SEARCH_IN_PATH | OPF_RETURN_REALPATH, filename, |
1100 | OPEN_MODE, fullname); | |
c906108c SS |
1101 | if (result < 0) |
1102 | { | |
c378eb4e | 1103 | /* Didn't work. Try using just the basename. */ |
57c22c6c BR |
1104 | p = lbasename (filename); |
1105 | if (p != filename) | |
492c0ab7 JK |
1106 | result = openp (path, OPF_SEARCH_IN_PATH | OPF_RETURN_REALPATH, p, |
1107 | OPEN_MODE, fullname); | |
c906108c | 1108 | } |
c906108c | 1109 | |
795d915c | 1110 | do_cleanups (cleanup); |
c906108c SS |
1111 | return result; |
1112 | } | |
1113 | ||
57c22c6c BR |
1114 | /* Open a source file given a symtab S. Returns a file descriptor or |
1115 | negative number for error. | |
1116 | ||
c378eb4e | 1117 | This function is a convience function to find_and_open_source. */ |
57c22c6c BR |
1118 | |
1119 | int | |
1120 | open_source_file (struct symtab *s) | |
1121 | { | |
5e987968 AS |
1122 | if (!s) |
1123 | return -1; | |
57c22c6c | 1124 | |
ee6f8984 | 1125 | return find_and_open_source (s->filename, SYMTAB_DIRNAME (s), &s->fullname); |
57c22c6c BR |
1126 | } |
1127 | ||
1128 | /* Finds the fullname that a symtab represents. | |
c906108c | 1129 | |
f35a17b5 JK |
1130 | This functions finds the fullname and saves it in s->fullname. |
1131 | It will also return the value. | |
57c22c6c BR |
1132 | |
1133 | If this function fails to find the file that this symtab represents, | |
f35a17b5 JK |
1134 | the expected fullname is used. Therefore the files does not have to |
1135 | exist. */ | |
256f06f3 | 1136 | |
0b0865da | 1137 | const char * |
57c22c6c | 1138 | symtab_to_fullname (struct symtab *s) |
c906108c | 1139 | { |
256f06f3 DE |
1140 | /* Use cached copy if we have it. |
1141 | We rely on forget_cached_source_info being called appropriately | |
1142 | to handle cases like the file being moved. */ | |
f35a17b5 | 1143 | if (s->fullname == NULL) |
5e987968 | 1144 | { |
ee6f8984 DE |
1145 | int fd = find_and_open_source (s->filename, SYMTAB_DIRNAME (s), |
1146 | &s->fullname); | |
f35a17b5 JK |
1147 | |
1148 | if (fd >= 0) | |
1149 | close (fd); | |
f35a17b5 | 1150 | else |
f0a4b570 JK |
1151 | { |
1152 | char *fullname; | |
1153 | struct cleanup *back_to; | |
1154 | ||
1155 | /* rewrite_source_path would be applied by find_and_open_source, we | |
1156 | should report the pathname where GDB tried to find the file. */ | |
1157 | ||
ee6f8984 | 1158 | if (SYMTAB_DIRNAME (s) == NULL || IS_ABSOLUTE_PATH (s->filename)) |
f0a4b570 JK |
1159 | fullname = xstrdup (s->filename); |
1160 | else | |
ee6f8984 DE |
1161 | fullname = concat (SYMTAB_DIRNAME (s), SLASH_STRING, s->filename, |
1162 | NULL); | |
f0a4b570 JK |
1163 | |
1164 | back_to = make_cleanup (xfree, fullname); | |
1165 | s->fullname = rewrite_source_path (fullname); | |
1166 | if (s->fullname == NULL) | |
1167 | s->fullname = xstrdup (fullname); | |
1168 | do_cleanups (back_to); | |
1169 | } | |
f35a17b5 | 1170 | } |
c906108c | 1171 | |
f35a17b5 | 1172 | return s->fullname; |
57c22c6c | 1173 | } |
1b56eb55 JK |
1174 | |
1175 | /* See commentary in source.h. */ | |
1176 | ||
1177 | const char * | |
1178 | symtab_to_filename_for_display (struct symtab *symtab) | |
1179 | { | |
1180 | if (filename_display_string == filename_display_basename) | |
1181 | return lbasename (symtab->filename); | |
1182 | else if (filename_display_string == filename_display_absolute) | |
1183 | return symtab_to_fullname (symtab); | |
1184 | else if (filename_display_string == filename_display_relative) | |
1185 | return symtab->filename; | |
1186 | else | |
1187 | internal_error (__FILE__, __LINE__, _("invalid filename_display_string")); | |
1188 | } | |
5e987968 | 1189 | \f |
c906108c SS |
1190 | /* Create and initialize the table S->line_charpos that records |
1191 | the positions of the lines in the source file, which is assumed | |
1192 | to be open on descriptor DESC. | |
1193 | All set S->nlines to the number of such lines. */ | |
1194 | ||
1195 | void | |
fba45db2 | 1196 | find_source_lines (struct symtab *s, int desc) |
c906108c SS |
1197 | { |
1198 | struct stat st; | |
52f0bd74 | 1199 | char *data, *p, *end; |
c906108c SS |
1200 | int nlines = 0; |
1201 | int lines_allocated = 1000; | |
1202 | int *line_charpos; | |
1203 | long mtime = 0; | |
1204 | int size; | |
1205 | ||
be8ca11b | 1206 | gdb_assert (s); |
8d749320 | 1207 | line_charpos = XNEWVEC (int, lines_allocated); |
c906108c | 1208 | if (fstat (desc, &st) < 0) |
05cba821 | 1209 | perror_with_name (symtab_to_filename_for_display (s)); |
c906108c | 1210 | |
eb822aa6 DE |
1211 | if (SYMTAB_OBJFILE (s) != NULL && SYMTAB_OBJFILE (s)->obfd != NULL) |
1212 | mtime = SYMTAB_OBJFILE (s)->mtime; | |
c906108c | 1213 | else if (exec_bfd) |
c04ea773 | 1214 | mtime = exec_bfd_mtime; |
c906108c SS |
1215 | |
1216 | if (mtime && mtime < st.st_mtime) | |
8a3fe4f8 | 1217 | warning (_("Source file is more recent than executable.")); |
c906108c | 1218 | |
c906108c SS |
1219 | { |
1220 | struct cleanup *old_cleanups; | |
1221 | ||
1222 | /* st_size might be a large type, but we only support source files whose | |
1223 | size fits in an int. */ | |
1224 | size = (int) st.st_size; | |
1225 | ||
1226 | /* Use malloc, not alloca, because this may be pretty large, and we may | |
1227 | run into various kinds of limits on stack size. */ | |
1228 | data = (char *) xmalloc (size); | |
b8c9b27d | 1229 | old_cleanups = make_cleanup (xfree, data); |
c906108c SS |
1230 | |
1231 | /* Reassign `size' to result of read for systems where \r\n -> \n. */ | |
1232 | size = myread (desc, data, size); | |
1233 | if (size < 0) | |
05cba821 | 1234 | perror_with_name (symtab_to_filename_for_display (s)); |
c906108c SS |
1235 | end = data + size; |
1236 | p = data; | |
1237 | line_charpos[0] = 0; | |
1238 | nlines = 1; | |
1239 | while (p != end) | |
1240 | { | |
1241 | if (*p++ == '\n' | |
c5aa993b | 1242 | /* A newline at the end does not start a new line. */ |
c906108c SS |
1243 | && p != end) |
1244 | { | |
1245 | if (nlines == lines_allocated) | |
1246 | { | |
1247 | lines_allocated *= 2; | |
1248 | line_charpos = | |
0efffb96 AC |
1249 | (int *) xrealloc ((char *) line_charpos, |
1250 | sizeof (int) * lines_allocated); | |
c906108c SS |
1251 | } |
1252 | line_charpos[nlines++] = p - data; | |
1253 | } | |
1254 | } | |
1255 | do_cleanups (old_cleanups); | |
1256 | } | |
d4d4db8a | 1257 | |
c906108c SS |
1258 | s->nlines = nlines; |
1259 | s->line_charpos = | |
0efffb96 | 1260 | (int *) xrealloc ((char *) line_charpos, nlines * sizeof (int)); |
c906108c SS |
1261 | |
1262 | } | |
1263 | ||
c906108c | 1264 | \f |
c5aa993b | 1265 | |
c906108c SS |
1266 | /* Get full pathname and line number positions for a symtab. |
1267 | Return nonzero if line numbers may have changed. | |
1268 | Set *FULLNAME to actual name of the file as found by `openp', | |
1269 | or to 0 if the file is not found. */ | |
1270 | ||
1271 | static int | |
fba45db2 | 1272 | get_filename_and_charpos (struct symtab *s, char **fullname) |
c906108c | 1273 | { |
52f0bd74 | 1274 | int desc, linenums_changed = 0; |
9fe4a216 | 1275 | struct cleanup *cleanups; |
c5aa993b | 1276 | |
c906108c SS |
1277 | desc = open_source_file (s); |
1278 | if (desc < 0) | |
1279 | { | |
1280 | if (fullname) | |
1281 | *fullname = NULL; | |
1282 | return 0; | |
c5aa993b | 1283 | } |
9fe4a216 | 1284 | cleanups = make_cleanup_close (desc); |
c906108c SS |
1285 | if (fullname) |
1286 | *fullname = s->fullname; | |
c5aa993b JM |
1287 | if (s->line_charpos == 0) |
1288 | linenums_changed = 1; | |
1289 | if (linenums_changed) | |
1290 | find_source_lines (s, desc); | |
9fe4a216 | 1291 | do_cleanups (cleanups); |
c906108c SS |
1292 | return linenums_changed; |
1293 | } | |
1294 | ||
1295 | /* Print text describing the full name of the source file S | |
1296 | and the line number LINE and its corresponding character position. | |
1297 | The text starts with two Ctrl-z so that the Emacs-GDB interface | |
1298 | can easily find it. | |
1299 | ||
1300 | MID_STATEMENT is nonzero if the PC is not at the beginning of that line. | |
1301 | ||
1302 | Return 1 if successful, 0 if could not find the file. */ | |
1303 | ||
1304 | int | |
fba45db2 KB |
1305 | identify_source_line (struct symtab *s, int line, int mid_statement, |
1306 | CORE_ADDR pc) | |
c906108c SS |
1307 | { |
1308 | if (s->line_charpos == 0) | |
c5aa993b | 1309 | get_filename_and_charpos (s, (char **) NULL); |
c906108c SS |
1310 | if (s->fullname == 0) |
1311 | return 0; | |
1312 | if (line > s->nlines) | |
1313 | /* Don't index off the end of the line_charpos array. */ | |
1314 | return 0; | |
1315 | annotate_source (s->fullname, line, s->line_charpos[line - 1], | |
eb822aa6 | 1316 | mid_statement, get_objfile_arch (SYMTAB_OBJFILE (s)), pc); |
c906108c SS |
1317 | |
1318 | current_source_line = line; | |
c906108c | 1319 | current_source_symtab = s; |
5166082f | 1320 | clear_lines_listed_range (); |
c906108c SS |
1321 | return 1; |
1322 | } | |
c906108c | 1323 | \f |
c5aa993b | 1324 | |
c906108c | 1325 | /* Print source lines from the file of symtab S, |
c378eb4e | 1326 | starting with line number LINE and stopping before line number STOPLINE. */ |
c906108c SS |
1327 | |
1328 | static void | |
dfaae886 MM |
1329 | print_source_lines_base (struct symtab *s, int line, int stopline, |
1330 | enum print_source_lines_flags flags) | |
c906108c | 1331 | { |
52f0bd74 AC |
1332 | int c; |
1333 | int desc; | |
f4dfd9c0 | 1334 | int noprint = 0; |
52f0bd74 | 1335 | FILE *stream; |
c906108c | 1336 | int nlines = stopline - line; |
7c8a8b04 | 1337 | struct cleanup *cleanup; |
79a45e25 | 1338 | struct ui_out *uiout = current_uiout; |
c906108c | 1339 | |
c378eb4e | 1340 | /* Regardless of whether we can open the file, set current_source_symtab. */ |
c906108c SS |
1341 | current_source_symtab = s; |
1342 | current_source_line = line; | |
1343 | first_line_listed = line; | |
1344 | ||
3e43a32a | 1345 | /* If printing of source lines is disabled, just print file and line |
c378eb4e | 1346 | number. */ |
8b93c638 JM |
1347 | if (ui_out_test_flags (uiout, ui_source_list)) |
1348 | { | |
c378eb4e | 1349 | /* Only prints "No such file or directory" once. */ |
c5aa993b JM |
1350 | if ((s != last_source_visited) || (!last_source_error)) |
1351 | { | |
1352 | last_source_visited = s; | |
1353 | desc = open_source_file (s); | |
1354 | } | |
1355 | else | |
1356 | { | |
1357 | desc = last_source_error; | |
dfaae886 | 1358 | flags |= PRINT_SOURCE_LINES_NOERROR; |
c5aa993b | 1359 | } |
8b93c638 JM |
1360 | } |
1361 | else | |
1362 | { | |
f4dfd9c0 | 1363 | desc = last_source_error; |
dfaae886 | 1364 | flags |= PRINT_SOURCE_LINES_NOERROR; |
f4dfd9c0 | 1365 | noprint = 1; |
8b93c638 | 1366 | } |
c906108c | 1367 | |
f4dfd9c0 | 1368 | if (desc < 0 || noprint) |
c906108c SS |
1369 | { |
1370 | last_source_error = desc; | |
1371 | ||
dfaae886 | 1372 | if (!(flags & PRINT_SOURCE_LINES_NOERROR)) |
c5aa993b | 1373 | { |
05cba821 JK |
1374 | const char *filename = symtab_to_filename_for_display (s); |
1375 | int len = strlen (filename) + 100; | |
224c3ddb | 1376 | char *name = (char *) alloca (len); |
08850b56 | 1377 | |
05cba821 | 1378 | xsnprintf (name, len, "%d\t%s", line, filename); |
c906108c SS |
1379 | print_sys_errmsg (name, errno); |
1380 | } | |
1381 | else | |
fc0ae648 AB |
1382 | { |
1383 | ui_out_field_int (uiout, "line", line); | |
1384 | ui_out_text (uiout, "\tin "); | |
56d397a3 | 1385 | |
23eb71e4 JK |
1386 | /* CLI expects only the "file" field. TUI expects only the |
1387 | "fullname" field (and TUI does break if "file" is printed). | |
1388 | MI expects both fields. ui_source_list is set only for CLI, | |
1389 | not for TUI. */ | |
1390 | if (ui_out_is_mi_like_p (uiout) | |
1391 | || ui_out_test_flags (uiout, ui_source_list)) | |
1392 | ui_out_field_string (uiout, "file", | |
1393 | symtab_to_filename_for_display (s)); | |
56d397a3 JK |
1394 | if (ui_out_is_mi_like_p (uiout) |
1395 | || !ui_out_test_flags (uiout, ui_source_list)) | |
8f1b8b82 JK |
1396 | { |
1397 | const char *s_fullname = symtab_to_fullname (s); | |
1398 | char *local_fullname; | |
1399 | ||
1400 | /* ui_out_field_string may free S_FULLNAME by calling | |
1401 | open_source_file for it again. See e.g., | |
1402 | tui_field_string->tui_show_source. */ | |
224c3ddb | 1403 | local_fullname = (char *) alloca (strlen (s_fullname) + 1); |
8f1b8b82 JK |
1404 | strcpy (local_fullname, s_fullname); |
1405 | ||
1406 | ui_out_field_string (uiout, "fullname", local_fullname); | |
1407 | } | |
23eb71e4 | 1408 | |
fc0ae648 AB |
1409 | ui_out_text (uiout, "\n"); |
1410 | } | |
c906108c SS |
1411 | |
1412 | return; | |
1413 | } | |
1414 | ||
1415 | last_source_error = 0; | |
1416 | ||
1417 | if (s->line_charpos == 0) | |
1418 | find_source_lines (s, desc); | |
1419 | ||
1420 | if (line < 1 || line > s->nlines) | |
1421 | { | |
1422 | close (desc); | |
8a3fe4f8 | 1423 | error (_("Line number %d out of range; %s has %d lines."), |
05cba821 | 1424 | line, symtab_to_filename_for_display (s), s->nlines); |
c906108c SS |
1425 | } |
1426 | ||
1427 | if (lseek (desc, s->line_charpos[line - 1], 0) < 0) | |
1428 | { | |
1429 | close (desc); | |
05cba821 | 1430 | perror_with_name (symtab_to_filename_for_display (s)); |
c906108c SS |
1431 | } |
1432 | ||
1433 | stream = fdopen (desc, FDOPEN_MODE); | |
1434 | clearerr (stream); | |
7c8a8b04 | 1435 | cleanup = make_cleanup_fclose (stream); |
c906108c SS |
1436 | |
1437 | while (nlines-- > 0) | |
1438 | { | |
8b93c638 JM |
1439 | char buf[20]; |
1440 | ||
1441 | c = fgetc (stream); | |
1442 | if (c == EOF) | |
1443 | break; | |
1444 | last_line_listed = current_source_line; | |
4cd29721 MM |
1445 | if (flags & PRINT_SOURCE_LINES_FILENAME) |
1446 | { | |
05cba821 | 1447 | ui_out_text (uiout, symtab_to_filename_for_display (s)); |
4cd29721 MM |
1448 | ui_out_text (uiout, ":"); |
1449 | } | |
08850b56 | 1450 | xsnprintf (buf, sizeof (buf), "%d\t", current_source_line++); |
8b93c638 JM |
1451 | ui_out_text (uiout, buf); |
1452 | do | |
1453 | { | |
1454 | if (c < 040 && c != '\t' && c != '\n' && c != '\r') | |
1455 | { | |
08850b56 | 1456 | xsnprintf (buf, sizeof (buf), "^%c", c + 0100); |
8b93c638 JM |
1457 | ui_out_text (uiout, buf); |
1458 | } | |
1459 | else if (c == 0177) | |
1460 | ui_out_text (uiout, "^?"); | |
8b93c638 JM |
1461 | else if (c == '\r') |
1462 | { | |
1463 | /* Skip a \r character, but only before a \n. */ | |
1464 | int c1 = fgetc (stream); | |
1465 | ||
1466 | if (c1 != '\n') | |
1467 | printf_filtered ("^%c", c + 0100); | |
1468 | if (c1 != EOF) | |
1469 | ungetc (c1, stream); | |
1470 | } | |
8b93c638 JM |
1471 | else |
1472 | { | |
08850b56 | 1473 | xsnprintf (buf, sizeof (buf), "%c", c); |
8b93c638 JM |
1474 | ui_out_text (uiout, buf); |
1475 | } | |
1476 | } | |
1477 | while (c != '\n' && (c = fgetc (stream)) >= 0); | |
c906108c SS |
1478 | } |
1479 | ||
7c8a8b04 | 1480 | do_cleanups (cleanup); |
c906108c SS |
1481 | } |
1482 | \f | |
1483 | /* Show source lines from the file of symtab S, starting with line | |
f132ba9d | 1484 | number LINE and stopping before line number STOPLINE. If this is |
c906108c | 1485 | not the command line version, then the source is shown in the source |
c378eb4e | 1486 | window otherwise it is simply printed. */ |
c906108c | 1487 | |
c5aa993b | 1488 | void |
dfaae886 MM |
1489 | print_source_lines (struct symtab *s, int line, int stopline, |
1490 | enum print_source_lines_flags flags) | |
c906108c | 1491 | { |
dfaae886 | 1492 | print_source_lines_base (s, line, stopline, flags); |
c906108c SS |
1493 | } |
1494 | \f | |
c906108c SS |
1495 | /* Print info on range of pc's in a specified line. */ |
1496 | ||
1497 | static void | |
fba45db2 | 1498 | line_info (char *arg, int from_tty) |
c906108c SS |
1499 | { |
1500 | struct symtabs_and_lines sals; | |
1501 | struct symtab_and_line sal; | |
1502 | CORE_ADDR start_pc, end_pc; | |
1503 | int i; | |
f8eba3c6 | 1504 | struct cleanup *cleanups; |
c906108c | 1505 | |
fe39c653 | 1506 | init_sal (&sal); /* initialize to zeroes */ |
c906108c SS |
1507 | |
1508 | if (arg == 0) | |
1509 | { | |
1510 | sal.symtab = current_source_symtab; | |
f8eba3c6 | 1511 | sal.pspace = current_program_space; |
5166082f PA |
1512 | if (last_line_listed != 0) |
1513 | sal.line = last_line_listed; | |
1514 | else | |
1515 | sal.line = current_source_line; | |
1516 | ||
c906108c | 1517 | sals.nelts = 1; |
8d749320 | 1518 | sals.sals = XNEW (struct symtab_and_line); |
c906108c SS |
1519 | sals.sals[0] = sal; |
1520 | } | |
1521 | else | |
1522 | { | |
39cf75f7 | 1523 | sals = decode_line_with_last_displayed (arg, DECODE_LINE_LIST_MODE); |
c5aa993b | 1524 | |
c906108c SS |
1525 | dont_repeat (); |
1526 | } | |
1527 | ||
f8eba3c6 TT |
1528 | cleanups = make_cleanup (xfree, sals.sals); |
1529 | ||
c906108c | 1530 | /* C++ More than one line may have been specified, as when the user |
c378eb4e | 1531 | specifies an overloaded function name. Print info on them all. */ |
c906108c SS |
1532 | for (i = 0; i < sals.nelts; i++) |
1533 | { | |
1534 | sal = sals.sals[i]; | |
f8eba3c6 TT |
1535 | if (sal.pspace != current_program_space) |
1536 | continue; | |
c5aa993b | 1537 | |
c906108c SS |
1538 | if (sal.symtab == 0) |
1539 | { | |
5af949e3 UW |
1540 | struct gdbarch *gdbarch = get_current_arch (); |
1541 | ||
a3f17187 | 1542 | printf_filtered (_("No line number information available")); |
c906108c SS |
1543 | if (sal.pc != 0) |
1544 | { | |
1545 | /* This is useful for "info line *0x7f34". If we can't tell the | |
c5aa993b JM |
1546 | user about a source line, at least let them have the symbolic |
1547 | address. */ | |
c906108c SS |
1548 | printf_filtered (" for address "); |
1549 | wrap_here (" "); | |
5af949e3 | 1550 | print_address (gdbarch, sal.pc, gdb_stdout); |
c906108c SS |
1551 | } |
1552 | else | |
1553 | printf_filtered ("."); | |
1554 | printf_filtered ("\n"); | |
1555 | } | |
1556 | else if (sal.line > 0 | |
1557 | && find_line_pc_range (sal, &start_pc, &end_pc)) | |
1558 | { | |
eb822aa6 DE |
1559 | struct gdbarch *gdbarch |
1560 | = get_objfile_arch (SYMTAB_OBJFILE (sal.symtab)); | |
5af949e3 | 1561 | |
c906108c SS |
1562 | if (start_pc == end_pc) |
1563 | { | |
1564 | printf_filtered ("Line %d of \"%s\"", | |
05cba821 JK |
1565 | sal.line, |
1566 | symtab_to_filename_for_display (sal.symtab)); | |
c906108c SS |
1567 | wrap_here (" "); |
1568 | printf_filtered (" is at address "); | |
5af949e3 | 1569 | print_address (gdbarch, start_pc, gdb_stdout); |
c906108c SS |
1570 | wrap_here (" "); |
1571 | printf_filtered (" but contains no code.\n"); | |
1572 | } | |
1573 | else | |
1574 | { | |
1575 | printf_filtered ("Line %d of \"%s\"", | |
05cba821 JK |
1576 | sal.line, |
1577 | symtab_to_filename_for_display (sal.symtab)); | |
c906108c SS |
1578 | wrap_here (" "); |
1579 | printf_filtered (" starts at address "); | |
5af949e3 | 1580 | print_address (gdbarch, start_pc, gdb_stdout); |
c906108c SS |
1581 | wrap_here (" "); |
1582 | printf_filtered (" and ends at "); | |
5af949e3 | 1583 | print_address (gdbarch, end_pc, gdb_stdout); |
c906108c SS |
1584 | printf_filtered (".\n"); |
1585 | } | |
1586 | ||
1587 | /* x/i should display this line's code. */ | |
5af949e3 | 1588 | set_next_address (gdbarch, start_pc); |
c906108c SS |
1589 | |
1590 | /* Repeating "info line" should do the following line. */ | |
1591 | last_line_listed = sal.line + 1; | |
1592 | ||
1593 | /* If this is the only line, show the source code. If it could | |
1594 | not find the file, don't do anything special. */ | |
1595 | if (annotation_level && sals.nelts == 1) | |
1596 | identify_source_line (sal.symtab, sal.line, 0, start_pc); | |
1597 | } | |
1598 | else | |
1599 | /* Is there any case in which we get here, and have an address | |
1600 | which the user would want to see? If we have debugging symbols | |
1601 | and no line numbers? */ | |
a3f17187 | 1602 | printf_filtered (_("Line number %d is out of range for \"%s\".\n"), |
05cba821 | 1603 | sal.line, symtab_to_filename_for_display (sal.symtab)); |
c906108c | 1604 | } |
f8eba3c6 | 1605 | do_cleanups (cleanups); |
c906108c SS |
1606 | } |
1607 | \f | |
1608 | /* Commands to search the source file for a regexp. */ | |
1609 | ||
c906108c | 1610 | static void |
fba45db2 | 1611 | forward_search_command (char *regex, int from_tty) |
c906108c | 1612 | { |
52f0bd74 AC |
1613 | int c; |
1614 | int desc; | |
1615 | FILE *stream; | |
c906108c SS |
1616 | int line; |
1617 | char *msg; | |
9fe4a216 | 1618 | struct cleanup *cleanups; |
c906108c | 1619 | |
c906108c | 1620 | line = last_line_listed + 1; |
c906108c SS |
1621 | |
1622 | msg = (char *) re_comp (regex); | |
1623 | if (msg) | |
8a3fe4f8 | 1624 | error (("%s"), msg); |
c906108c SS |
1625 | |
1626 | if (current_source_symtab == 0) | |
1627 | select_source_symtab (0); | |
1628 | ||
1629 | desc = open_source_file (current_source_symtab); | |
1630 | if (desc < 0) | |
05cba821 | 1631 | perror_with_name (symtab_to_filename_for_display (current_source_symtab)); |
9fe4a216 | 1632 | cleanups = make_cleanup_close (desc); |
c906108c SS |
1633 | |
1634 | if (current_source_symtab->line_charpos == 0) | |
1635 | find_source_lines (current_source_symtab, desc); | |
1636 | ||
1637 | if (line < 1 || line > current_source_symtab->nlines) | |
9fe4a216 | 1638 | error (_("Expression not found")); |
c906108c SS |
1639 | |
1640 | if (lseek (desc, current_source_symtab->line_charpos[line - 1], 0) < 0) | |
05cba821 | 1641 | perror_with_name (symtab_to_filename_for_display (current_source_symtab)); |
c906108c | 1642 | |
9fe4a216 | 1643 | discard_cleanups (cleanups); |
c906108c SS |
1644 | stream = fdopen (desc, FDOPEN_MODE); |
1645 | clearerr (stream); | |
9fe4a216 | 1646 | cleanups = make_cleanup_fclose (stream); |
c5aa993b JM |
1647 | while (1) |
1648 | { | |
1649 | static char *buf = NULL; | |
aa1ee363 | 1650 | char *p; |
c5aa993b JM |
1651 | int cursize, newsize; |
1652 | ||
1653 | cursize = 256; | |
224c3ddb | 1654 | buf = (char *) xmalloc (cursize); |
c5aa993b JM |
1655 | p = buf; |
1656 | ||
40aea477 | 1657 | c = fgetc (stream); |
c5aa993b JM |
1658 | if (c == EOF) |
1659 | break; | |
1660 | do | |
c906108c | 1661 | { |
c5aa993b JM |
1662 | *p++ = c; |
1663 | if (p - buf == cursize) | |
1664 | { | |
1665 | newsize = cursize + cursize / 2; | |
224c3ddb | 1666 | buf = (char *) xrealloc (buf, newsize); |
c5aa993b JM |
1667 | p = buf + cursize; |
1668 | cursize = newsize; | |
1669 | } | |
c906108c | 1670 | } |
40aea477 | 1671 | while (c != '\n' && (c = fgetc (stream)) >= 0); |
c906108c | 1672 | |
7be570e7 JM |
1673 | /* Remove the \r, if any, at the end of the line, otherwise |
1674 | regular expressions that end with $ or \n won't work. */ | |
1675 | if (p - buf > 1 && p[-2] == '\r') | |
1676 | { | |
1677 | p--; | |
1678 | p[-1] = '\n'; | |
1679 | } | |
7be570e7 | 1680 | |
c378eb4e | 1681 | /* We now have a source line in buf, null terminate and match. */ |
c5aa993b JM |
1682 | *p = 0; |
1683 | if (re_exec (buf) > 0) | |
1684 | { | |
c378eb4e | 1685 | /* Match! */ |
e681b284 | 1686 | do_cleanups (cleanups); |
c5aa993b | 1687 | print_source_lines (current_source_symtab, line, line + 1, 0); |
4fa62494 | 1688 | set_internalvar_integer (lookup_internalvar ("_"), line); |
c5aa993b JM |
1689 | current_source_line = max (line - lines_to_list / 2, 1); |
1690 | return; | |
1691 | } | |
1692 | line++; | |
1693 | } | |
c906108c | 1694 | |
a3f17187 | 1695 | printf_filtered (_("Expression not found\n")); |
9fe4a216 | 1696 | do_cleanups (cleanups); |
c906108c SS |
1697 | } |
1698 | ||
c906108c | 1699 | static void |
fba45db2 | 1700 | reverse_search_command (char *regex, int from_tty) |
c906108c | 1701 | { |
52f0bd74 AC |
1702 | int c; |
1703 | int desc; | |
1704 | FILE *stream; | |
c906108c SS |
1705 | int line; |
1706 | char *msg; | |
9fe4a216 | 1707 | struct cleanup *cleanups; |
063190b6 | 1708 | |
c906108c | 1709 | line = last_line_listed - 1; |
c906108c SS |
1710 | |
1711 | msg = (char *) re_comp (regex); | |
1712 | if (msg) | |
8a3fe4f8 | 1713 | error (("%s"), msg); |
c906108c SS |
1714 | |
1715 | if (current_source_symtab == 0) | |
1716 | select_source_symtab (0); | |
1717 | ||
1718 | desc = open_source_file (current_source_symtab); | |
1719 | if (desc < 0) | |
05cba821 | 1720 | perror_with_name (symtab_to_filename_for_display (current_source_symtab)); |
9fe4a216 | 1721 | cleanups = make_cleanup_close (desc); |
c906108c SS |
1722 | |
1723 | if (current_source_symtab->line_charpos == 0) | |
1724 | find_source_lines (current_source_symtab, desc); | |
1725 | ||
1726 | if (line < 1 || line > current_source_symtab->nlines) | |
9fe4a216 | 1727 | error (_("Expression not found")); |
c906108c SS |
1728 | |
1729 | if (lseek (desc, current_source_symtab->line_charpos[line - 1], 0) < 0) | |
05cba821 | 1730 | perror_with_name (symtab_to_filename_for_display (current_source_symtab)); |
c906108c | 1731 | |
9fe4a216 | 1732 | discard_cleanups (cleanups); |
c906108c SS |
1733 | stream = fdopen (desc, FDOPEN_MODE); |
1734 | clearerr (stream); | |
9fe4a216 | 1735 | cleanups = make_cleanup_fclose (stream); |
c906108c SS |
1736 | while (line > 1) |
1737 | { | |
c378eb4e MS |
1738 | /* FIXME!!! We walk right off the end of buf if we get a long line!!! */ |
1739 | char buf[4096]; /* Should be reasonable??? */ | |
aa1ee363 | 1740 | char *p = buf; |
c906108c | 1741 | |
40aea477 | 1742 | c = fgetc (stream); |
c906108c SS |
1743 | if (c == EOF) |
1744 | break; | |
c5aa993b JM |
1745 | do |
1746 | { | |
1747 | *p++ = c; | |
1748 | } | |
40aea477 | 1749 | while (c != '\n' && (c = fgetc (stream)) >= 0); |
c906108c | 1750 | |
7be570e7 JM |
1751 | /* Remove the \r, if any, at the end of the line, otherwise |
1752 | regular expressions that end with $ or \n won't work. */ | |
1753 | if (p - buf > 1 && p[-2] == '\r') | |
1754 | { | |
1755 | p--; | |
1756 | p[-1] = '\n'; | |
1757 | } | |
7be570e7 | 1758 | |
c906108c SS |
1759 | /* We now have a source line in buf; null terminate and match. */ |
1760 | *p = 0; | |
1761 | if (re_exec (buf) > 0) | |
1762 | { | |
c378eb4e | 1763 | /* Match! */ |
e681b284 | 1764 | do_cleanups (cleanups); |
c5aa993b | 1765 | print_source_lines (current_source_symtab, line, line + 1, 0); |
4fa62494 | 1766 | set_internalvar_integer (lookup_internalvar ("_"), line); |
c906108c SS |
1767 | current_source_line = max (line - lines_to_list / 2, 1); |
1768 | return; | |
1769 | } | |
1770 | line--; | |
1771 | if (fseek (stream, current_source_symtab->line_charpos[line - 1], 0) < 0) | |
1772 | { | |
05cba821 JK |
1773 | const char *filename; |
1774 | ||
e681b284 | 1775 | do_cleanups (cleanups); |
05cba821 JK |
1776 | filename = symtab_to_filename_for_display (current_source_symtab); |
1777 | perror_with_name (filename); | |
c906108c SS |
1778 | } |
1779 | } | |
1780 | ||
a3f17187 | 1781 | printf_filtered (_("Expression not found\n")); |
9fe4a216 | 1782 | do_cleanups (cleanups); |
c906108c SS |
1783 | return; |
1784 | } | |
2f61ca93 JB |
1785 | |
1786 | /* If the last character of PATH is a directory separator, then strip it. */ | |
1787 | ||
1788 | static void | |
1789 | strip_trailing_directory_separator (char *path) | |
1790 | { | |
1791 | const int last = strlen (path) - 1; | |
1792 | ||
1793 | if (last < 0) | |
1794 | return; /* No stripping is needed if PATH is the empty string. */ | |
1795 | ||
1796 | if (IS_DIR_SEPARATOR (path[last])) | |
1797 | path[last] = '\0'; | |
1798 | } | |
1799 | ||
1800 | /* Return the path substitution rule that matches FROM. | |
1801 | Return NULL if no rule matches. */ | |
1802 | ||
1803 | static struct substitute_path_rule * | |
1804 | find_substitute_path_rule (const char *from) | |
1805 | { | |
1806 | struct substitute_path_rule *rule = substitute_path_rules; | |
1807 | ||
1808 | while (rule != NULL) | |
1809 | { | |
1810 | if (FILENAME_CMP (rule->from, from) == 0) | |
1811 | return rule; | |
1812 | rule = rule->next; | |
1813 | } | |
1814 | ||
1815 | return NULL; | |
1816 | } | |
1817 | ||
1818 | /* Add a new substitute-path rule at the end of the current list of rules. | |
1819 | The new rule will replace FROM into TO. */ | |
1820 | ||
29b0e8a2 | 1821 | void |
2f61ca93 JB |
1822 | add_substitute_path_rule (char *from, char *to) |
1823 | { | |
1824 | struct substitute_path_rule *rule; | |
8d749320 | 1825 | struct substitute_path_rule *new_rule = XNEW (struct substitute_path_rule); |
2f61ca93 | 1826 | |
2f61ca93 JB |
1827 | new_rule->from = xstrdup (from); |
1828 | new_rule->to = xstrdup (to); | |
1829 | new_rule->next = NULL; | |
1830 | ||
1831 | /* If the list of rules are empty, then insert the new rule | |
1832 | at the head of the list. */ | |
1833 | ||
1834 | if (substitute_path_rules == NULL) | |
1835 | { | |
1836 | substitute_path_rules = new_rule; | |
1837 | return; | |
1838 | } | |
1839 | ||
1840 | /* Otherwise, skip to the last rule in our list and then append | |
1841 | the new rule. */ | |
1842 | ||
1843 | rule = substitute_path_rules; | |
1844 | while (rule->next != NULL) | |
1845 | rule = rule->next; | |
1846 | ||
1847 | rule->next = new_rule; | |
1848 | } | |
1849 | ||
1850 | /* Remove the given source path substitution rule from the current list | |
1851 | of rules. The memory allocated for that rule is also deallocated. */ | |
1852 | ||
1853 | static void | |
1854 | delete_substitute_path_rule (struct substitute_path_rule *rule) | |
1855 | { | |
1856 | if (rule == substitute_path_rules) | |
1857 | substitute_path_rules = rule->next; | |
1858 | else | |
1859 | { | |
1860 | struct substitute_path_rule *prev = substitute_path_rules; | |
1861 | ||
1862 | while (prev != NULL && prev->next != rule) | |
1863 | prev = prev->next; | |
1864 | ||
1865 | gdb_assert (prev != NULL); | |
1866 | ||
1867 | prev->next = rule->next; | |
1868 | } | |
1869 | ||
1870 | xfree (rule->from); | |
1871 | xfree (rule->to); | |
1872 | xfree (rule); | |
1873 | } | |
1874 | ||
1875 | /* Implement the "show substitute-path" command. */ | |
1876 | ||
1877 | static void | |
1878 | show_substitute_path_command (char *args, int from_tty) | |
1879 | { | |
1880 | struct substitute_path_rule *rule = substitute_path_rules; | |
1881 | char **argv; | |
1882 | char *from = NULL; | |
5b3fca71 | 1883 | struct cleanup *cleanup; |
2f61ca93 | 1884 | |
d1a41061 | 1885 | argv = gdb_buildargv (args); |
5b3fca71 | 1886 | cleanup = make_cleanup_freeargv (argv); |
2f61ca93 JB |
1887 | |
1888 | /* We expect zero or one argument. */ | |
1889 | ||
1890 | if (argv != NULL && argv[0] != NULL && argv[1] != NULL) | |
1891 | error (_("Too many arguments in command")); | |
1892 | ||
1893 | if (argv != NULL && argv[0] != NULL) | |
1894 | from = argv[0]; | |
1895 | ||
1896 | /* Print the substitution rules. */ | |
1897 | ||
1898 | if (from != NULL) | |
1899 | printf_filtered | |
1900 | (_("Source path substitution rule matching `%s':\n"), from); | |
1901 | else | |
1902 | printf_filtered (_("List of all source path substitution rules:\n")); | |
1903 | ||
1904 | while (rule != NULL) | |
1905 | { | |
1e2ccb61 | 1906 | if (from == NULL || substitute_path_rule_matches (rule, from) != 0) |
2f61ca93 JB |
1907 | printf_filtered (" `%s' -> `%s'.\n", rule->from, rule->to); |
1908 | rule = rule->next; | |
1909 | } | |
5b3fca71 TT |
1910 | |
1911 | do_cleanups (cleanup); | |
2f61ca93 JB |
1912 | } |
1913 | ||
1914 | /* Implement the "unset substitute-path" command. */ | |
1915 | ||
1916 | static void | |
1917 | unset_substitute_path_command (char *args, int from_tty) | |
1918 | { | |
1919 | struct substitute_path_rule *rule = substitute_path_rules; | |
d1a41061 | 1920 | char **argv = gdb_buildargv (args); |
2f61ca93 JB |
1921 | char *from = NULL; |
1922 | int rule_found = 0; | |
5b3fca71 | 1923 | struct cleanup *cleanup; |
2f61ca93 JB |
1924 | |
1925 | /* This function takes either 0 or 1 argument. */ | |
1926 | ||
5b3fca71 | 1927 | cleanup = make_cleanup_freeargv (argv); |
2f61ca93 JB |
1928 | if (argv != NULL && argv[0] != NULL && argv[1] != NULL) |
1929 | error (_("Incorrect usage, too many arguments in command")); | |
1930 | ||
1931 | if (argv != NULL && argv[0] != NULL) | |
1932 | from = argv[0]; | |
1933 | ||
1934 | /* If the user asked for all the rules to be deleted, ask him | |
1935 | to confirm and give him a chance to abort before the action | |
1936 | is performed. */ | |
1937 | ||
1938 | if (from == NULL | |
1939 | && !query (_("Delete all source path substitution rules? "))) | |
1940 | error (_("Canceled")); | |
1941 | ||
1942 | /* Delete the rule matching the argument. No argument means that | |
1943 | all rules should be deleted. */ | |
1944 | ||
1945 | while (rule != NULL) | |
1946 | { | |
1947 | struct substitute_path_rule *next = rule->next; | |
1948 | ||
1949 | if (from == NULL || FILENAME_CMP (from, rule->from) == 0) | |
1950 | { | |
1951 | delete_substitute_path_rule (rule); | |
1952 | rule_found = 1; | |
1953 | } | |
1954 | ||
1955 | rule = next; | |
1956 | } | |
1957 | ||
1958 | /* If the user asked for a specific rule to be deleted but | |
1959 | we could not find it, then report an error. */ | |
1960 | ||
1961 | if (from != NULL && !rule_found) | |
1962 | error (_("No substitution rule defined for `%s'"), from); | |
c4e86dd4 DJ |
1963 | |
1964 | forget_cached_source_info (); | |
5b3fca71 TT |
1965 | |
1966 | do_cleanups (cleanup); | |
2f61ca93 JB |
1967 | } |
1968 | ||
1969 | /* Add a new source path substitution rule. */ | |
1970 | ||
1971 | static void | |
1972 | set_substitute_path_command (char *args, int from_tty) | |
1973 | { | |
2f61ca93 JB |
1974 | char **argv; |
1975 | struct substitute_path_rule *rule; | |
5b3fca71 | 1976 | struct cleanup *cleanup; |
2f61ca93 | 1977 | |
d1a41061 | 1978 | argv = gdb_buildargv (args); |
5b3fca71 | 1979 | cleanup = make_cleanup_freeargv (argv); |
2f61ca93 JB |
1980 | |
1981 | if (argv == NULL || argv[0] == NULL || argv [1] == NULL) | |
1982 | error (_("Incorrect usage, too few arguments in command")); | |
1983 | ||
1984 | if (argv[2] != NULL) | |
1985 | error (_("Incorrect usage, too many arguments in command")); | |
1986 | ||
1987 | if (*(argv[0]) == '\0') | |
1988 | error (_("First argument must be at least one character long")); | |
1989 | ||
1990 | /* Strip any trailing directory separator character in either FROM | |
1991 | or TO. The substitution rule already implicitly contains them. */ | |
1992 | strip_trailing_directory_separator (argv[0]); | |
1993 | strip_trailing_directory_separator (argv[1]); | |
1994 | ||
1995 | /* If a rule with the same "from" was previously defined, then | |
1996 | delete it. This new rule replaces it. */ | |
1997 | ||
1998 | rule = find_substitute_path_rule (argv[0]); | |
1999 | if (rule != NULL) | |
2000 | delete_substitute_path_rule (rule); | |
2001 | ||
2002 | /* Insert the new substitution rule. */ | |
2003 | ||
2004 | add_substitute_path_rule (argv[0], argv[1]); | |
c4e86dd4 | 2005 | forget_cached_source_info (); |
5b3fca71 TT |
2006 | |
2007 | do_cleanups (cleanup); | |
2f61ca93 JB |
2008 | } |
2009 | ||
c906108c SS |
2010 | \f |
2011 | void | |
fba45db2 | 2012 | _initialize_source (void) |
c906108c SS |
2013 | { |
2014 | struct cmd_list_element *c; | |
433759f7 | 2015 | |
c906108c SS |
2016 | current_source_symtab = 0; |
2017 | init_source_path (); | |
2018 | ||
2019 | /* The intention is to use POSIX Basic Regular Expressions. | |
2020 | Always use the GNU regex routine for consistency across all hosts. | |
2021 | Our current GNU regex.c does not have all the POSIX features, so this is | |
2022 | just an approximation. */ | |
2023 | re_set_syntax (RE_SYNTAX_GREP); | |
2024 | ||
1a966eab AC |
2025 | c = add_cmd ("directory", class_files, directory_command, _("\ |
2026 | Add directory DIR to beginning of search path for source files.\n\ | |
c906108c SS |
2027 | Forget cached info on source file locations and line positions.\n\ |
2028 | DIR can also be $cwd for the current working directory, or $cdir for the\n\ | |
2029 | directory in which the source file was compiled into object code.\n\ | |
1a966eab | 2030 | With no argument, reset the search path to $cdir:$cwd, the default."), |
c906108c SS |
2031 | &cmdlist); |
2032 | ||
2033 | if (dbx_commands) | |
c5aa993b | 2034 | add_com_alias ("use", "directory", class_files, 0); |
c906108c | 2035 | |
5ba2abeb | 2036 | set_cmd_completer (c, filename_completer); |
c906108c | 2037 | |
99e7ae30 DE |
2038 | add_setshow_optional_filename_cmd ("directories", |
2039 | class_files, | |
2040 | &source_path, | |
2041 | _("\ | |
2042 | Set the search path for finding source files."), | |
2043 | _("\ | |
2044 | Show the search path for finding source files."), | |
2045 | _("\ | |
c906108c | 2046 | $cwd in the path means the current working directory.\n\ |
99e7ae30 DE |
2047 | $cdir in the path means the compilation directory of the source file.\n\ |
2048 | GDB ensures the search path always ends with $cdir:$cwd by\n\ | |
2049 | appending these directories if necessary.\n\ | |
2050 | Setting the value to an empty string sets it to $cdir:$cwd, the default."), | |
2051 | set_directories_command, | |
2052 | show_directories_command, | |
2053 | &setlist, &showlist); | |
c906108c | 2054 | |
c906108c | 2055 | add_info ("source", source_info, |
1bedd215 | 2056 | _("Information about the current source file.")); |
c906108c | 2057 | |
1bedd215 AC |
2058 | add_info ("line", line_info, _("\ |
2059 | Core addresses of the code for a source line.\n\ | |
c906108c SS |
2060 | Line can be specified as\n\ |
2061 | LINENUM, to list around that line in current file,\n\ | |
2062 | FILE:LINENUM, to list around that line in that file,\n\ | |
2063 | FUNCTION, to list around beginning of that function,\n\ | |
2064 | FILE:FUNCTION, to distinguish among like-named static functions.\n\ | |
c906108c SS |
2065 | Default is to describe the last source line that was listed.\n\n\ |
2066 | This sets the default address for \"x\" to the line's first instruction\n\ | |
2067 | so that \"x/i\" suffices to start examining the machine code.\n\ | |
1bedd215 | 2068 | The address is also stored as the value of \"$_\".")); |
c906108c | 2069 | |
1bedd215 AC |
2070 | add_com ("forward-search", class_files, forward_search_command, _("\ |
2071 | Search for regular expression (see regex(3)) from last line listed.\n\ | |
2072 | The matching line number is also stored as the value of \"$_\".")); | |
c906108c | 2073 | add_com_alias ("search", "forward-search", class_files, 0); |
1e96de83 | 2074 | add_com_alias ("fo", "forward-search", class_files, 1); |
c906108c | 2075 | |
1bedd215 AC |
2076 | add_com ("reverse-search", class_files, reverse_search_command, _("\ |
2077 | Search backward for regular expression (see regex(3)) from last line listed.\n\ | |
2078 | The matching line number is also stored as the value of \"$_\".")); | |
dd304d53 | 2079 | add_com_alias ("rev", "reverse-search", class_files, 1); |
c906108c | 2080 | |
7f7cc265 | 2081 | add_setshow_integer_cmd ("listsize", class_support, &lines_to_list, _("\ |
35096d9d | 2082 | Set number of source lines gdb will list by default."), _("\ |
f81d1120 PA |
2083 | Show number of source lines gdb will list by default."), _("\ |
2084 | Use this to choose how many source lines the \"list\" displays (unless\n\ | |
2085 | the \"list\" argument explicitly specifies some other number).\n\ | |
2086 | A value of \"unlimited\", or zero, means there's no limit."), | |
7f7cc265 PA |
2087 | NULL, |
2088 | show_lines_to_list, | |
2089 | &setlist, &showlist); | |
2f61ca93 JB |
2090 | |
2091 | add_cmd ("substitute-path", class_files, set_substitute_path_command, | |
2092 | _("\ | |
7ef2b397 JB |
2093 | Usage: set substitute-path FROM TO\n\ |
2094 | Add a substitution rule replacing FROM into TO in source file names.\n\ | |
2095 | If a substitution rule was previously set for FROM, the old rule\n\ | |
2096 | is replaced by the new one."), | |
2097 | &setlist); | |
2f61ca93 JB |
2098 | |
2099 | add_cmd ("substitute-path", class_files, unset_substitute_path_command, | |
2100 | _("\ | |
7ef2b397 JB |
2101 | Usage: unset substitute-path [FROM]\n\ |
2102 | Delete the rule for substituting FROM in source file names. If FROM\n\ | |
2103 | is not specified, all substituting rules are deleted.\n\ | |
2104 | If the debugger cannot find a rule for FROM, it will display a warning."), | |
2f61ca93 JB |
2105 | &unsetlist); |
2106 | ||
2107 | add_cmd ("substitute-path", class_files, show_substitute_path_command, | |
7ef2b397 JB |
2108 | _("\ |
2109 | Usage: show substitute-path [FROM]\n\ | |
2110 | Print the rule for substituting FROM in source file names. If FROM\n\ | |
2111 | is not specified, print all substitution rules."), | |
2f61ca93 | 2112 | &showlist); |
1b56eb55 JK |
2113 | |
2114 | add_setshow_enum_cmd ("filename-display", class_files, | |
2115 | filename_display_kind_names, | |
2116 | &filename_display_string, _("\ | |
2117 | Set how to display filenames."), _("\ | |
2118 | Show how to display filenames."), _("\ | |
2119 | filename-display can be:\n\ | |
2120 | basename - display only basename of a filename\n\ | |
2121 | relative - display a filename relative to the compilation directory\n\ | |
2122 | absolute - display an absolute filename\n\ | |
2123 | By default, relative filenames are displayed."), | |
2124 | NULL, | |
2125 | show_filename_display_string, | |
2126 | &setlist, &showlist); | |
2127 | ||
c906108c | 2128 | } |