Commit | Line | Data |
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c906108c | 1 | /* List lines of source files for GDB, the GNU debugger. |
618f726f | 2 | Copyright (C) 1986-2016 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" |
8d297bbf | 45 | #include "common/enum-flags.h" |
c906108c | 46 | |
c906108c SS |
47 | #define OPEN_MODE (O_RDONLY | O_BINARY) |
48 | #define FDOPEN_MODE FOPEN_RB | |
49 | ||
c378eb4e | 50 | /* Prototypes for exported functions. */ |
c906108c | 51 | |
a14ed312 | 52 | void _initialize_source (void); |
c906108c | 53 | |
c378eb4e | 54 | /* Prototypes for local functions. */ |
c906108c | 55 | |
a14ed312 | 56 | static int get_filename_and_charpos (struct symtab *, char **); |
c906108c | 57 | |
a14ed312 | 58 | static void reverse_search_command (char *, int); |
c906108c | 59 | |
a14ed312 | 60 | static void forward_search_command (char *, int); |
c906108c | 61 | |
a14ed312 | 62 | static void line_info (char *, int); |
c906108c | 63 | |
a14ed312 | 64 | static void source_info (char *, int); |
c906108c | 65 | |
c906108c SS |
66 | /* Path of directories to search for source files. |
67 | Same format as the PATH environment variable's value. */ | |
68 | ||
69 | char *source_path; | |
70 | ||
2f61ca93 JB |
71 | /* Support for source path substitution commands. */ |
72 | ||
73 | struct substitute_path_rule | |
74 | { | |
75 | char *from; | |
76 | char *to; | |
77 | struct substitute_path_rule *next; | |
78 | }; | |
79 | ||
80 | static struct substitute_path_rule *substitute_path_rules = NULL; | |
81 | ||
c906108c SS |
82 | /* Symtab of default file for listing lines of. */ |
83 | ||
0378c332 | 84 | static struct symtab *current_source_symtab; |
c906108c SS |
85 | |
86 | /* Default next line to list. */ | |
87 | ||
0378c332 | 88 | static int current_source_line; |
c906108c | 89 | |
6c95b8df PA |
90 | static struct program_space *current_source_pspace; |
91 | ||
c906108c SS |
92 | /* Default number of lines to print with commands like "list". |
93 | This is based on guessing how many long (i.e. more than chars_per_line | |
94 | characters) lines there will be. To be completely correct, "list" | |
95 | and friends should be rewritten to count characters and see where | |
96 | things are wrapping, but that would be a fair amount of work. */ | |
97 | ||
f43f8571 | 98 | static int lines_to_list = 10; |
920d2a44 AC |
99 | static void |
100 | show_lines_to_list (struct ui_file *file, int from_tty, | |
101 | struct cmd_list_element *c, const char *value) | |
102 | { | |
3e43a32a MS |
103 | fprintf_filtered (file, |
104 | _("Number of source lines gdb " | |
105 | "will list by default is %s.\n"), | |
920d2a44 AC |
106 | value); |
107 | } | |
c906108c | 108 | |
1b56eb55 JK |
109 | /* Possible values of 'set filename-display'. */ |
110 | static const char filename_display_basename[] = "basename"; | |
111 | static const char filename_display_relative[] = "relative"; | |
112 | static const char filename_display_absolute[] = "absolute"; | |
113 | ||
114 | static const char *const filename_display_kind_names[] = { | |
115 | filename_display_basename, | |
116 | filename_display_relative, | |
117 | filename_display_absolute, | |
118 | NULL | |
119 | }; | |
120 | ||
121 | static const char *filename_display_string = filename_display_relative; | |
122 | ||
123 | static void | |
124 | show_filename_display_string (struct ui_file *file, int from_tty, | |
125 | struct cmd_list_element *c, const char *value) | |
126 | { | |
127 | fprintf_filtered (file, _("Filenames are displayed as \"%s\".\n"), value); | |
128 | } | |
129 | ||
c906108c SS |
130 | /* Line number of last line printed. Default for various commands. |
131 | current_source_line is usually, but not always, the same as this. */ | |
132 | ||
133 | static int last_line_listed; | |
134 | ||
5166082f PA |
135 | /* First line number listed by last listing command. If 0, then no |
136 | source lines have yet been listed since the last time the current | |
137 | source line was changed. */ | |
c906108c SS |
138 | |
139 | static int first_line_listed; | |
140 | ||
141 | /* Saves the name of the last source file visited and a possible error code. | |
c378eb4e | 142 | Used to prevent repeating annoying "No such file or directories" msgs. */ |
c906108c SS |
143 | |
144 | static struct symtab *last_source_visited = NULL; | |
145 | static int last_source_error = 0; | |
c906108c | 146 | \f |
0378c332 FN |
147 | /* Return the first line listed by print_source_lines. |
148 | Used by command interpreters to request listing from | |
c378eb4e | 149 | a previous point. */ |
0378c332 FN |
150 | |
151 | int | |
152 | get_first_line_listed (void) | |
153 | { | |
154 | return first_line_listed; | |
155 | } | |
156 | ||
5166082f PA |
157 | /* Clear line listed range. This makes the next "list" center the |
158 | printed source lines around the current source line. */ | |
159 | ||
160 | static void | |
161 | clear_lines_listed_range (void) | |
162 | { | |
163 | first_line_listed = 0; | |
164 | last_line_listed = 0; | |
165 | } | |
166 | ||
0378c332 FN |
167 | /* Return the default number of lines to print with commands like the |
168 | cli "list". The caller of print_source_lines must use this to | |
169 | calculate the end line and use it in the call to print_source_lines | |
c378eb4e | 170 | as it does not automatically use this value. */ |
0378c332 FN |
171 | |
172 | int | |
173 | get_lines_to_list (void) | |
174 | { | |
175 | return lines_to_list; | |
176 | } | |
177 | ||
178 | /* Return the current source file for listing and next line to list. | |
c378eb4e | 179 | NOTE: The returned sal pc and end fields are not valid. */ |
0378c332 FN |
180 | |
181 | struct symtab_and_line | |
182 | get_current_source_symtab_and_line (void) | |
183 | { | |
245c7f48 | 184 | struct symtab_and_line cursal = { 0 }; |
0378c332 | 185 | |
6c95b8df | 186 | cursal.pspace = current_source_pspace; |
0378c332 FN |
187 | cursal.symtab = current_source_symtab; |
188 | cursal.line = current_source_line; | |
53cb0458 FN |
189 | cursal.pc = 0; |
190 | cursal.end = 0; | |
0378c332 FN |
191 | |
192 | return cursal; | |
193 | } | |
194 | ||
53cb0458 FN |
195 | /* If the current source file for listing is not set, try and get a default. |
196 | Usually called before get_current_source_symtab_and_line() is called. | |
0378c332 | 197 | It may err out if a default cannot be determined. |
53cb0458 FN |
198 | We must be cautious about where it is called, as it can recurse as the |
199 | process of determining a new default may call the caller! | |
200 | Use get_current_source_symtab_and_line only to get whatever | |
c378eb4e | 201 | we have without erroring out or trying to get a default. */ |
0378c332 | 202 | |
53cb0458 FN |
203 | void |
204 | set_default_source_symtab_and_line (void) | |
0378c332 | 205 | { |
0378c332 | 206 | if (!have_full_symbols () && !have_partial_symbols ()) |
8a3fe4f8 | 207 | error (_("No symbol table is loaded. Use the \"file\" command.")); |
0378c332 | 208 | |
c378eb4e | 209 | /* Pull in a current source symtab if necessary. */ |
0378c332 FN |
210 | if (current_source_symtab == 0) |
211 | select_source_symtab (0); | |
0378c332 FN |
212 | } |
213 | ||
214 | /* Return the current default file for listing and next line to list | |
215 | (the returned sal pc and end fields are not valid.) | |
53cb0458 | 216 | and set the current default to whatever is in SAL. |
c378eb4e | 217 | NOTE: The returned sal pc and end fields are not valid. */ |
0378c332 FN |
218 | |
219 | struct symtab_and_line | |
53cb0458 | 220 | set_current_source_symtab_and_line (const struct symtab_and_line *sal) |
0378c332 | 221 | { |
245c7f48 | 222 | struct symtab_and_line cursal = { 0 }; |
6c95b8df PA |
223 | |
224 | cursal.pspace = current_source_pspace; | |
0378c332 FN |
225 | cursal.symtab = current_source_symtab; |
226 | cursal.line = current_source_line; | |
6c95b8df PA |
227 | cursal.pc = 0; |
228 | cursal.end = 0; | |
0378c332 | 229 | |
6c95b8df | 230 | current_source_pspace = sal->pspace; |
0378c332 FN |
231 | current_source_symtab = sal->symtab; |
232 | current_source_line = sal->line; | |
6c95b8df | 233 | |
5166082f PA |
234 | /* Force the next "list" to center around the current line. */ |
235 | clear_lines_listed_range (); | |
236 | ||
0378c332 FN |
237 | return cursal; |
238 | } | |
239 | ||
c378eb4e | 240 | /* Reset any information stored about a default file and line to print. */ |
0378c332 FN |
241 | |
242 | void | |
243 | clear_current_source_symtab_and_line (void) | |
244 | { | |
245 | current_source_symtab = 0; | |
246 | current_source_line = 0; | |
247 | } | |
c5aa993b | 248 | |
c906108c SS |
249 | /* Set the source file default for the "list" command to be S. |
250 | ||
251 | If S is NULL, and we don't have a default, find one. This | |
252 | should only be called when the user actually tries to use the | |
253 | default, since we produce an error if we can't find a reasonable | |
254 | default. Also, since this can cause symbols to be read, doing it | |
255 | before we need to would make things slower than necessary. */ | |
256 | ||
257 | void | |
aa1ee363 | 258 | select_source_symtab (struct symtab *s) |
c906108c SS |
259 | { |
260 | struct symtabs_and_lines sals; | |
261 | struct symtab_and_line sal; | |
c906108c | 262 | struct objfile *ofp; |
43f3e411 | 263 | struct compunit_symtab *cu; |
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. */ | |
d12307c1 | 278 | if (lookup_symbol (main_name (), 0, VAR_DOMAIN, 0).symbol) |
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 | ||
43f3e411 | 296 | ALL_FILETABS (ofp, cu, s) |
c906108c | 297 | { |
712a2e6d DE |
298 | const char *name = s->filename; |
299 | int len = strlen (name); | |
300 | ||
301 | if (!(len > 2 && (strcmp (&name[len - 2], ".h") == 0 | |
302 | || strcmp (name, "<<C++-namespaces>>") == 0))) | |
c906108c | 303 | { |
712a2e6d DE |
304 | current_source_pspace = current_program_space; |
305 | current_source_symtab = s; | |
c906108c SS |
306 | } |
307 | } | |
6c95b8df | 308 | |
c906108c SS |
309 | if (current_source_symtab) |
310 | return; | |
311 | ||
6c95b8df | 312 | ALL_OBJFILES (ofp) |
ccefe4c4 TT |
313 | { |
314 | if (ofp->sf) | |
315 | s = ofp->sf->qf->find_last_source_symtab (ofp); | |
316 | if (s) | |
317 | current_source_symtab = s; | |
318 | } | |
c906108c SS |
319 | if (current_source_symtab) |
320 | return; | |
321 | ||
8a3fe4f8 | 322 | error (_("Can't find a default source file")); |
c906108c SS |
323 | } |
324 | \f | |
99e7ae30 DE |
325 | /* Handler for "set directories path-list" command. |
326 | "set dir mumble" doesn't prepend paths, it resets the entire | |
327 | path list. The theory is that set(show(dir)) should be a no-op. */ | |
328 | ||
329 | static void | |
330 | set_directories_command (char *args, int from_tty, struct cmd_list_element *c) | |
331 | { | |
332 | /* This is the value that was set. | |
333 | It needs to be processed to maintain $cdir:$cwd and remove dups. */ | |
334 | char *set_path = source_path; | |
335 | ||
336 | /* We preserve the invariant that $cdir:$cwd begins life at the end of | |
337 | the list by calling init_source_path. If they appear earlier in | |
338 | SET_PATH then mod_path will move them appropriately. | |
339 | mod_path will also remove duplicates. */ | |
340 | init_source_path (); | |
341 | if (*set_path != '\0') | |
342 | mod_path (set_path, &source_path); | |
343 | ||
344 | xfree (set_path); | |
345 | } | |
346 | ||
347 | /* Print the list of source directories. | |
348 | This is used by the "ld" command, so it has the signature of a command | |
349 | function. */ | |
350 | ||
c906108c | 351 | static void |
99e7ae30 | 352 | show_directories_1 (char *ignore, int from_tty) |
c906108c SS |
353 | { |
354 | puts_filtered ("Source directories searched: "); | |
355 | puts_filtered (source_path); | |
356 | puts_filtered ("\n"); | |
357 | } | |
358 | ||
99e7ae30 DE |
359 | /* Handler for "show directories" command. */ |
360 | ||
361 | static void | |
362 | show_directories_command (struct ui_file *file, int from_tty, | |
363 | struct cmd_list_element *c, const char *value) | |
364 | { | |
365 | show_directories_1 (NULL, from_tty); | |
366 | } | |
367 | ||
00174a86 TT |
368 | /* Forget line positions and file names for the symtabs in a |
369 | particular objfile. */ | |
370 | ||
371 | void | |
372 | forget_cached_source_info_for_objfile (struct objfile *objfile) | |
373 | { | |
43f3e411 | 374 | struct compunit_symtab *cu; |
00174a86 TT |
375 | struct symtab *s; |
376 | ||
43f3e411 | 377 | ALL_OBJFILE_FILETABS (objfile, cu, s) |
00174a86 TT |
378 | { |
379 | if (s->line_charpos != NULL) | |
380 | { | |
381 | xfree (s->line_charpos); | |
382 | s->line_charpos = NULL; | |
383 | } | |
384 | if (s->fullname != NULL) | |
385 | { | |
386 | xfree (s->fullname); | |
387 | s->fullname = NULL; | |
388 | } | |
00174a86 | 389 | } |
6f809020 DE |
390 | |
391 | if (objfile->sf) | |
392 | objfile->sf->qf->forget_cached_source_info (objfile); | |
00174a86 TT |
393 | } |
394 | ||
c906108c SS |
395 | /* Forget what we learned about line positions in source files, and |
396 | which directories contain them; must check again now since files | |
397 | may be found in a different directory now. */ | |
398 | ||
399 | void | |
fba45db2 | 400 | forget_cached_source_info (void) |
c906108c | 401 | { |
6c95b8df | 402 | struct program_space *pspace; |
52f0bd74 | 403 | struct objfile *objfile; |
c906108c | 404 | |
6c95b8df PA |
405 | ALL_PSPACES (pspace) |
406 | ALL_PSPACE_OBJFILES (pspace, objfile) | |
c906108c | 407 | { |
00174a86 | 408 | forget_cached_source_info_for_objfile (objfile); |
c906108c | 409 | } |
c4e86dd4 DJ |
410 | |
411 | last_source_visited = NULL; | |
c906108c SS |
412 | } |
413 | ||
414 | void | |
fba45db2 | 415 | init_source_path (void) |
c906108c SS |
416 | { |
417 | char buf[20]; | |
418 | ||
08850b56 | 419 | xsnprintf (buf, sizeof (buf), "$cdir%c$cwd", DIRNAME_SEPARATOR); |
4fcf66da | 420 | source_path = xstrdup (buf); |
c906108c SS |
421 | forget_cached_source_info (); |
422 | } | |
423 | ||
424 | /* Add zero or more directories to the front of the source path. */ | |
c5aa993b | 425 | |
28da1647 | 426 | static void |
fba45db2 | 427 | directory_command (char *dirname, int from_tty) |
c906108c SS |
428 | { |
429 | dont_repeat (); | |
c378eb4e | 430 | /* FIXME, this goes to "delete dir"... */ |
c906108c SS |
431 | if (dirname == 0) |
432 | { | |
80618b99 | 433 | if (!from_tty || query (_("Reinitialize source path to empty? "))) |
c906108c | 434 | { |
b8c9b27d | 435 | xfree (source_path); |
c906108c SS |
436 | init_source_path (); |
437 | } | |
438 | } | |
439 | else | |
440 | { | |
441 | mod_path (dirname, &source_path); | |
c4e86dd4 | 442 | forget_cached_source_info (); |
c906108c SS |
443 | } |
444 | if (from_tty) | |
99e7ae30 | 445 | show_directories_1 ((char *) 0, from_tty); |
c906108c SS |
446 | } |
447 | ||
13d35ae5 AS |
448 | /* Add a path given with the -d command line switch. |
449 | This will not be quoted so we must not treat spaces as separators. */ | |
450 | ||
451 | void | |
452 | directory_switch (char *dirname, int from_tty) | |
453 | { | |
454 | add_path (dirname, &source_path, 0); | |
455 | } | |
456 | ||
c906108c SS |
457 | /* Add zero or more directories to the front of an arbitrary path. */ |
458 | ||
459 | void | |
fba45db2 | 460 | mod_path (char *dirname, char **which_path) |
c04e0a08 JJ |
461 | { |
462 | add_path (dirname, which_path, 1); | |
463 | } | |
464 | ||
465 | /* Workhorse of mod_path. Takes an extra argument to determine | |
466 | if dirname should be parsed for separators that indicate multiple | |
467 | directories. This allows for interfaces that pre-parse the dirname | |
468 | and allow specification of traditional separator characters such | |
c378eb4e | 469 | as space or tab. */ |
c04e0a08 JJ |
470 | |
471 | void | |
472 | add_path (char *dirname, char **which_path, int parse_separators) | |
c906108c SS |
473 | { |
474 | char *old = *which_path; | |
475 | int prefix = 0; | |
e4ab2fad JK |
476 | VEC (char_ptr) *dir_vec = NULL; |
477 | struct cleanup *back_to; | |
478 | int ix; | |
479 | char *name; | |
c906108c SS |
480 | |
481 | if (dirname == 0) | |
482 | return; | |
483 | ||
13d35ae5 AS |
484 | if (parse_separators) |
485 | { | |
e4ab2fad JK |
486 | char **argv, **argvp; |
487 | ||
13d35ae5 | 488 | /* This will properly parse the space and tab separators |
e4ab2fad | 489 | and any quotes that may exist. */ |
d1a41061 | 490 | argv = gdb_buildargv (dirname); |
13d35ae5 | 491 | |
e4ab2fad JK |
492 | for (argvp = argv; *argvp; argvp++) |
493 | dirnames_to_char_ptr_vec_append (&dir_vec, *argvp); | |
494 | ||
495 | freeargv (argv); | |
13d35ae5 AS |
496 | } |
497 | else | |
e4ab2fad JK |
498 | VEC_safe_push (char_ptr, dir_vec, xstrdup (dirname)); |
499 | back_to = make_cleanup_free_char_ptr_vec (dir_vec); | |
c906108c | 500 | |
e4ab2fad | 501 | for (ix = 0; VEC_iterate (char_ptr, dir_vec, ix, name); ++ix) |
c906108c | 502 | { |
aa1ee363 | 503 | char *p; |
c906108c SS |
504 | struct stat st; |
505 | ||
e4ab2fad JK |
506 | /* Spaces and tabs will have been removed by buildargv(). |
507 | NAME is the start of the directory. | |
508 | P is the '\0' following the end. */ | |
509 | p = name + strlen (name); | |
13d35ae5 AS |
510 | |
511 | while (!(IS_DIR_SEPARATOR (*name) && p <= name + 1) /* "/" */ | |
c3690141 | 512 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
7be570e7 | 513 | /* On MS-DOS and MS-Windows, h:\ is different from h: */ |
13d35ae5 | 514 | && !(p == name + 3 && name[1] == ':') /* "d:/" */ |
7be570e7 | 515 | #endif |
13d35ae5 | 516 | && IS_DIR_SEPARATOR (p[-1])) |
c378eb4e | 517 | /* Sigh. "foo/" => "foo" */ |
c906108c | 518 | --p; |
c906108c SS |
519 | *p = '\0'; |
520 | ||
7be570e7 | 521 | while (p > name && p[-1] == '.') |
c906108c SS |
522 | { |
523 | if (p - name == 1) | |
524 | { | |
525 | /* "." => getwd (). */ | |
526 | name = current_directory; | |
527 | goto append; | |
528 | } | |
fe4e3eb8 | 529 | else if (p > name + 1 && IS_DIR_SEPARATOR (p[-2])) |
c906108c SS |
530 | { |
531 | if (p - name == 2) | |
532 | { | |
533 | /* "/." => "/". */ | |
534 | *--p = '\0'; | |
535 | goto append; | |
536 | } | |
537 | else | |
538 | { | |
539 | /* "...foo/." => "...foo". */ | |
540 | p -= 2; | |
541 | *p = '\0'; | |
542 | continue; | |
543 | } | |
544 | } | |
545 | else | |
546 | break; | |
547 | } | |
548 | ||
549 | if (name[0] == '~') | |
550 | name = tilde_expand (name); | |
c3690141 | 551 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
fe4e3eb8 | 552 | else if (IS_ABSOLUTE_PATH (name) && p == name + 2) /* "d:" => "d:." */ |
1754f103 | 553 | name = concat (name, ".", (char *)NULL); |
7be570e7 | 554 | #endif |
fe4e3eb8 | 555 | else if (!IS_ABSOLUTE_PATH (name) && name[0] != '$') |
1754f103 | 556 | name = concat (current_directory, SLASH_STRING, name, (char *)NULL); |
c906108c SS |
557 | else |
558 | name = savestring (name, p - name); | |
b8c9b27d | 559 | make_cleanup (xfree, name); |
c906108c SS |
560 | |
561 | /* Unless it's a variable, check existence. */ | |
c5aa993b JM |
562 | if (name[0] != '$') |
563 | { | |
564 | /* These are warnings, not errors, since we don't want a | |
565 | non-existent directory in a .gdbinit file to stop processing | |
566 | of the .gdbinit file. | |
567 | ||
568 | Whether they get added to the path is more debatable. Current | |
569 | answer is yes, in case the user wants to go make the directory | |
570 | or whatever. If the directory continues to not exist/not be | |
571 | a directory/etc, then having them in the path should be | |
572 | harmless. */ | |
573 | if (stat (name, &st) < 0) | |
574 | { | |
575 | int save_errno = errno; | |
433759f7 | 576 | |
c5aa993b JM |
577 | fprintf_unfiltered (gdb_stderr, "Warning: "); |
578 | print_sys_errmsg (name, save_errno); | |
579 | } | |
580 | else if ((st.st_mode & S_IFMT) != S_IFDIR) | |
8a3fe4f8 | 581 | warning (_("%s is not a directory."), name); |
c5aa993b | 582 | } |
c906108c SS |
583 | |
584 | append: | |
585 | { | |
aa1ee363 | 586 | unsigned int len = strlen (name); |
5ee4ed9f | 587 | char tinybuf[2]; |
c906108c SS |
588 | |
589 | p = *which_path; | |
5e3f4fab | 590 | while (1) |
c906108c | 591 | { |
5e3f4fab EBM |
592 | /* FIXME: we should use realpath() or its work-alike |
593 | before comparing. Then all the code above which | |
594 | removes excess slashes and dots could simply go away. */ | |
595 | if (!filename_ncmp (p, name, len) | |
596 | && (p[len] == '\0' || p[len] == DIRNAME_SEPARATOR)) | |
597 | { | |
598 | /* Found it in the search path, remove old copy. */ | |
599 | if (p > *which_path) | |
600 | { | |
601 | /* Back over leading separator. */ | |
602 | p--; | |
603 | } | |
604 | if (prefix > p - *which_path) | |
605 | { | |
606 | /* Same dir twice in one cmd. */ | |
607 | goto skip_dup; | |
608 | } | |
609 | /* Copy from next '\0' or ':'. */ | |
610 | memmove (p, &p[len + 1], strlen (&p[len + 1]) + 1); | |
611 | } | |
612 | p = strchr (p, DIRNAME_SEPARATOR); | |
613 | if (p != 0) | |
614 | ++p; | |
615 | else | |
616 | break; | |
c906108c | 617 | } |
c906108c | 618 | |
5ee4ed9f JK |
619 | tinybuf[0] = DIRNAME_SEPARATOR; |
620 | tinybuf[1] = '\0'; | |
c906108c | 621 | |
5ee4ed9f JK |
622 | /* If we have already tacked on a name(s) in this command, |
623 | be sure they stay on the front as we tack on some | |
624 | more. */ | |
625 | if (prefix) | |
626 | { | |
627 | char *temp, c; | |
628 | ||
629 | c = old[prefix]; | |
630 | old[prefix] = '\0'; | |
631 | temp = concat (old, tinybuf, name, (char *)NULL); | |
632 | old[prefix] = c; | |
633 | *which_path = concat (temp, "", &old[prefix], (char *) NULL); | |
634 | prefix = strlen (temp); | |
635 | xfree (temp); | |
636 | } | |
637 | else | |
638 | { | |
639 | *which_path = concat (name, (old[0] ? tinybuf : old), | |
640 | old, (char *)NULL); | |
641 | prefix = strlen (name); | |
c906108c | 642 | } |
5ee4ed9f JK |
643 | xfree (old); |
644 | old = *which_path; | |
c906108c | 645 | } |
82ae4854 | 646 | skip_dup: |
b27cf2b3 | 647 | ; |
c5aa993b | 648 | } |
e4ab2fad JK |
649 | |
650 | do_cleanups (back_to); | |
c906108c SS |
651 | } |
652 | ||
653 | ||
654 | static void | |
fba45db2 | 655 | source_info (char *ignore, int from_tty) |
c906108c | 656 | { |
52f0bd74 | 657 | struct symtab *s = current_source_symtab; |
b6577aab | 658 | struct compunit_symtab *cust; |
c906108c SS |
659 | |
660 | if (!s) | |
661 | { | |
a3f17187 | 662 | printf_filtered (_("No current source file.\n")); |
c906108c SS |
663 | return; |
664 | } | |
b6577aab DE |
665 | |
666 | cust = SYMTAB_COMPUNIT (s); | |
a3f17187 | 667 | printf_filtered (_("Current source file is %s\n"), s->filename); |
ee6f8984 DE |
668 | if (SYMTAB_DIRNAME (s) != NULL) |
669 | printf_filtered (_("Compilation directory is %s\n"), SYMTAB_DIRNAME (s)); | |
c906108c | 670 | if (s->fullname) |
a3f17187 | 671 | printf_filtered (_("Located in %s\n"), s->fullname); |
c906108c | 672 | if (s->nlines) |
a3f17187 | 673 | printf_filtered (_("Contains %d line%s.\n"), s->nlines, |
c906108c SS |
674 | s->nlines == 1 ? "" : "s"); |
675 | ||
a3f17187 | 676 | printf_filtered (_("Source language is %s.\n"), language_str (s->language)); |
b6577aab DE |
677 | printf_filtered (_("Producer is %s.\n"), |
678 | COMPUNIT_PRODUCER (cust) != NULL | |
679 | ? COMPUNIT_PRODUCER (cust) : _("unknown")); | |
43f3e411 | 680 | printf_filtered (_("Compiled with %s debugging format.\n"), |
b6577aab | 681 | COMPUNIT_DEBUGFORMAT (cust)); |
a3f17187 | 682 | printf_filtered (_("%s preprocessor macro info.\n"), |
b6577aab | 683 | COMPUNIT_MACRO_TABLE (cust) != NULL |
43f3e411 | 684 | ? "Includes" : "Does not include"); |
c906108c | 685 | } |
c5aa993b | 686 | \f |
c906108c | 687 | |
a55411b9 DE |
688 | /* Return True if the file NAME exists and is a regular file. |
689 | If the result is false then *ERRNO_PTR is set to a useful value assuming | |
690 | we're expecting a regular file. */ | |
691 | ||
1da1a192 | 692 | static int |
a55411b9 | 693 | is_regular_file (const char *name, int *errno_ptr) |
1da1a192 JB |
694 | { |
695 | struct stat st; | |
696 | const int status = stat (name, &st); | |
697 | ||
698 | /* Stat should never fail except when the file does not exist. | |
699 | If stat fails, analyze the source of error and return True | |
700 | unless the file does not exist, to avoid returning false results | |
c378eb4e MS |
701 | on obscure systems where stat does not work as expected. */ |
702 | ||
1da1a192 | 703 | if (status != 0) |
a55411b9 DE |
704 | { |
705 | if (errno != ENOENT) | |
706 | return 1; | |
707 | *errno_ptr = ENOENT; | |
708 | return 0; | |
709 | } | |
710 | ||
711 | if (S_ISREG (st.st_mode)) | |
712 | return 1; | |
1da1a192 | 713 | |
a55411b9 DE |
714 | if (S_ISDIR (st.st_mode)) |
715 | *errno_ptr = EISDIR; | |
716 | else | |
717 | *errno_ptr = EINVAL; | |
718 | return 0; | |
1da1a192 | 719 | } |
c906108c | 720 | |
c906108c | 721 | /* Open a file named STRING, searching path PATH (dir names sep by some char) |
fbdebf46 JK |
722 | using mode MODE in the calls to open. You cannot use this function to |
723 | create files (O_CREAT). | |
c906108c | 724 | |
014d698b EZ |
725 | OPTS specifies the function behaviour in specific cases. |
726 | ||
727 | If OPF_TRY_CWD_FIRST, try to open ./STRING before searching PATH. | |
c906108c | 728 | (ie pretend the first element of PATH is "."). This also indicates |
e3e06db3 DE |
729 | that, unless OPF_SEARCH_IN_PATH is also specified, a slash in STRING |
730 | disables searching of the path (this is so that "exec-file ./foo" or | |
731 | "symbol-file ./foo" insures that you get that particular version of | |
732 | foo or an error message). | |
c906108c | 733 | |
014d698b EZ |
734 | If OPTS has OPF_SEARCH_IN_PATH set, absolute names will also be |
735 | searched in path (we usually want this for source files but not for | |
736 | executables). | |
737 | ||
e7a8479f | 738 | If FILENAME_OPENED is non-null, set it to a newly allocated string naming |
a89f66e4 | 739 | the actual file opened (this string will always start with a "/"). We |
c906108c SS |
740 | have to take special pains to avoid doubling the "/" between the directory |
741 | and the file, sigh! Emacs gets confuzzed by this when we print the | |
742 | source file name!!! | |
743 | ||
492c0ab7 JK |
744 | If OPTS has OPF_RETURN_REALPATH set return FILENAME_OPENED resolved by |
745 | gdb_realpath. Even without OPF_RETURN_REALPATH this function still returns | |
746 | filename starting with "/". If FILENAME_OPENED is NULL this option has no | |
747 | effect. | |
1f0c4988 | 748 | |
c906108c SS |
749 | If a file is found, return the descriptor. |
750 | Otherwise, return -1, with errno set for the last name we tried to open. */ | |
751 | ||
752 | /* >>>> This should only allow files of certain types, | |
c378eb4e | 753 | >>>> eg executable, non-directory. */ |
c906108c | 754 | int |
014d698b | 755 | openp (const char *path, int opts, const char *string, |
fbdebf46 | 756 | int mode, char **filename_opened) |
c906108c | 757 | { |
52f0bd74 AC |
758 | int fd; |
759 | char *filename; | |
c906108c | 760 | int alloclen; |
e4ab2fad JK |
761 | VEC (char_ptr) *dir_vec; |
762 | struct cleanup *back_to; | |
763 | int ix; | |
764 | char *dir; | |
79b289e2 PA |
765 | /* The errno set for the last name we tried to open (and |
766 | failed). */ | |
767 | int last_errno = 0; | |
c906108c | 768 | |
fbdebf46 JK |
769 | /* The open syscall MODE parameter is not specified. */ |
770 | gdb_assert ((mode & O_CREAT) == 0); | |
f91e5ac3 JB |
771 | gdb_assert (string != NULL); |
772 | ||
773 | /* A file with an empty name cannot possibly exist. Report a failure | |
774 | without further checking. | |
775 | ||
776 | This is an optimization which also defends us against buggy | |
777 | implementations of the "stat" function. For instance, we have | |
778 | noticed that a MinGW debugger built on Windows XP 32bits crashes | |
779 | when the debugger is started with an empty argument. */ | |
780 | if (string[0] == '\0') | |
781 | { | |
782 | errno = ENOENT; | |
783 | return -1; | |
784 | } | |
fbdebf46 | 785 | |
c906108c SS |
786 | if (!path) |
787 | path = "."; | |
788 | ||
c906108c | 789 | mode |= O_BINARY; |
c906108c | 790 | |
014d698b | 791 | if ((opts & OPF_TRY_CWD_FIRST) || IS_ABSOLUTE_PATH (string)) |
c906108c | 792 | { |
a55411b9 | 793 | int i, reg_file_errno; |
072b1022 | 794 | |
a55411b9 | 795 | if (is_regular_file (string, ®_file_errno)) |
072b1022 | 796 | { |
224c3ddb | 797 | filename = (char *) alloca (strlen (string) + 1); |
072b1022 | 798 | strcpy (filename, string); |
614c279d | 799 | fd = gdb_open_cloexec (filename, mode, 0); |
072b1022 DJ |
800 | if (fd >= 0) |
801 | goto done; | |
a55411b9 | 802 | last_errno = errno; |
072b1022 DJ |
803 | } |
804 | else | |
3f565f1e DJ |
805 | { |
806 | filename = NULL; | |
807 | fd = -1; | |
a55411b9 | 808 | last_errno = reg_file_errno; |
3f565f1e | 809 | } |
072b1022 | 810 | |
014d698b EZ |
811 | if (!(opts & OPF_SEARCH_IN_PATH)) |
812 | for (i = 0; string[i]; i++) | |
813 | if (IS_DIR_SEPARATOR (string[i])) | |
814 | goto done; | |
c906108c SS |
815 | } |
816 | ||
e6d9b9c2 DE |
817 | /* For dos paths, d:/foo -> /foo, and d:foo -> foo. */ |
818 | if (HAS_DRIVE_SPEC (string)) | |
819 | string = STRIP_DRIVE_SPEC (string); | |
820 | ||
c378eb4e | 821 | /* /foo => foo, to avoid multiple slashes that Emacs doesn't like. */ |
014d698b EZ |
822 | while (IS_DIR_SEPARATOR(string[0])) |
823 | string++; | |
824 | ||
c906108c | 825 | /* ./foo => foo */ |
fe4e3eb8 | 826 | while (string[0] == '.' && IS_DIR_SEPARATOR (string[1])) |
c906108c SS |
827 | string += 2; |
828 | ||
829 | alloclen = strlen (path) + strlen (string) + 2; | |
224c3ddb | 830 | filename = (char *) alloca (alloclen); |
c906108c | 831 | fd = -1; |
79b289e2 | 832 | last_errno = ENOENT; |
e4ab2fad JK |
833 | |
834 | dir_vec = dirnames_to_char_ptr_vec (path); | |
835 | back_to = make_cleanup_free_char_ptr_vec (dir_vec); | |
836 | ||
837 | for (ix = 0; VEC_iterate (char_ptr, dir_vec, ix, dir); ++ix) | |
c906108c | 838 | { |
e4ab2fad | 839 | size_t len = strlen (dir); |
a55411b9 | 840 | int reg_file_errno; |
c906108c | 841 | |
e4ab2fad | 842 | if (strcmp (dir, "$cwd") == 0) |
c5aa993b JM |
843 | { |
844 | /* Name is $cwd -- insert current directory name instead. */ | |
845 | int newlen; | |
846 | ||
c378eb4e | 847 | /* First, realloc the filename buffer if too short. */ |
c5aa993b JM |
848 | len = strlen (current_directory); |
849 | newlen = len + strlen (string) + 2; | |
850 | if (newlen > alloclen) | |
851 | { | |
852 | alloclen = newlen; | |
224c3ddb | 853 | filename = (char *) alloca (alloclen); |
c5aa993b JM |
854 | } |
855 | strcpy (filename, current_directory); | |
856 | } | |
ebd86fb5 TJB |
857 | else if (strchr(dir, '~')) |
858 | { | |
859 | /* See whether we need to expand the tilde. */ | |
860 | int newlen; | |
861 | char *tilde_expanded; | |
862 | ||
863 | tilde_expanded = tilde_expand (dir); | |
864 | ||
865 | /* First, realloc the filename buffer if too short. */ | |
866 | len = strlen (tilde_expanded); | |
867 | newlen = len + strlen (string) + 2; | |
868 | if (newlen > alloclen) | |
869 | { | |
870 | alloclen = newlen; | |
224c3ddb | 871 | filename = (char *) alloca (alloclen); |
ebd86fb5 TJB |
872 | } |
873 | strcpy (filename, tilde_expanded); | |
874 | xfree (tilde_expanded); | |
875 | } | |
c5aa993b JM |
876 | else |
877 | { | |
878 | /* Normal file name in path -- just use it. */ | |
e4ab2fad | 879 | strcpy (filename, dir); |
08001717 DE |
880 | |
881 | /* Don't search $cdir. It's also a magic path like $cwd, but we | |
882 | don't have enough information to expand it. The user *could* | |
883 | have an actual directory named '$cdir' but handling that would | |
884 | be confusing, it would mean different things in different | |
885 | contexts. If the user really has '$cdir' one can use './$cdir'. | |
886 | We can get $cdir when loading scripts. When loading source files | |
887 | $cdir must have already been expanded to the correct value. */ | |
e4ab2fad | 888 | if (strcmp (dir, "$cdir") == 0) |
08001717 | 889 | continue; |
c906108c | 890 | } |
c906108c | 891 | |
c378eb4e | 892 | /* Remove trailing slashes. */ |
fe4e3eb8 | 893 | while (len > 0 && IS_DIR_SEPARATOR (filename[len - 1])) |
c906108c SS |
894 | filename[--len] = 0; |
895 | ||
c5aa993b | 896 | strcat (filename + len, SLASH_STRING); |
c906108c SS |
897 | strcat (filename, string); |
898 | ||
a55411b9 | 899 | if (is_regular_file (filename, ®_file_errno)) |
5e987968 | 900 | { |
614c279d | 901 | fd = gdb_open_cloexec (filename, mode, 0); |
5e987968 AS |
902 | if (fd >= 0) |
903 | break; | |
79b289e2 | 904 | last_errno = errno; |
5e987968 | 905 | } |
a55411b9 DE |
906 | else |
907 | last_errno = reg_file_errno; | |
c906108c SS |
908 | } |
909 | ||
e4ab2fad JK |
910 | do_cleanups (back_to); |
911 | ||
c5aa993b | 912 | done: |
c906108c SS |
913 | if (filename_opened) |
914 | { | |
f5b95b50 | 915 | /* If a file was opened, canonicalize its filename. */ |
c906108c | 916 | if (fd < 0) |
1f8cc6db | 917 | *filename_opened = NULL; |
04affae3 JK |
918 | else if ((opts & OPF_RETURN_REALPATH) != 0) |
919 | *filename_opened = gdb_realpath (filename); | |
c906108c | 920 | else |
04affae3 | 921 | *filename_opened = gdb_abspath (filename); |
c906108c | 922 | } |
c906108c | 923 | |
79b289e2 | 924 | errno = last_errno; |
c906108c SS |
925 | return fd; |
926 | } | |
927 | ||
c5aa993b | 928 | |
c906108c SS |
929 | /* This is essentially a convenience, for clients that want the behaviour |
930 | of openp, using source_path, but that really don't want the file to be | |
931 | opened but want instead just to know what the full pathname is (as | |
932 | qualified against source_path). | |
933 | ||
934 | The current working directory is searched first. | |
935 | ||
936 | If the file was found, this function returns 1, and FULL_PATHNAME is | |
937 | set to the fully-qualified pathname. | |
938 | ||
5e987968 | 939 | Else, this functions returns 0, and FULL_PATHNAME is set to NULL. */ |
c906108c | 940 | int |
24f81874 | 941 | source_full_path_of (const char *filename, char **full_pathname) |
c906108c | 942 | { |
c5aa993b | 943 | int fd; |
c906108c | 944 | |
492c0ab7 JK |
945 | fd = openp (source_path, |
946 | OPF_TRY_CWD_FIRST | OPF_SEARCH_IN_PATH | OPF_RETURN_REALPATH, | |
947 | filename, O_RDONLY, full_pathname); | |
c906108c SS |
948 | if (fd < 0) |
949 | { | |
950 | *full_pathname = NULL; | |
951 | return 0; | |
952 | } | |
953 | ||
954 | close (fd); | |
955 | return 1; | |
956 | } | |
957 | ||
2f61ca93 JB |
958 | /* Return non-zero if RULE matches PATH, that is if the rule can be |
959 | applied to PATH. */ | |
960 | ||
961 | static int | |
962 | substitute_path_rule_matches (const struct substitute_path_rule *rule, | |
963 | const char *path) | |
964 | { | |
965 | const int from_len = strlen (rule->from); | |
966 | const int path_len = strlen (path); | |
2f61ca93 JB |
967 | |
968 | if (path_len < from_len) | |
969 | return 0; | |
970 | ||
971 | /* The substitution rules are anchored at the start of the path, | |
486ef3b9 | 972 | so the path should start with rule->from. */ |
2f61ca93 | 973 | |
486ef3b9 | 974 | if (filename_ncmp (path, rule->from, from_len) != 0) |
2f61ca93 JB |
975 | return 0; |
976 | ||
977 | /* Make sure that the region in the path that matches the substitution | |
978 | rule is immediately followed by a directory separator (or the end of | |
979 | string character). */ | |
230cd560 | 980 | |
2f61ca93 JB |
981 | if (path[from_len] != '\0' && !IS_DIR_SEPARATOR (path[from_len])) |
982 | return 0; | |
983 | ||
984 | return 1; | |
985 | } | |
986 | ||
987 | /* Find the substitute-path rule that applies to PATH and return it. | |
988 | Return NULL if no rule applies. */ | |
989 | ||
990 | static struct substitute_path_rule * | |
991 | get_substitute_path_rule (const char *path) | |
992 | { | |
993 | struct substitute_path_rule *rule = substitute_path_rules; | |
994 | ||
995 | while (rule != NULL && !substitute_path_rule_matches (rule, path)) | |
996 | rule = rule->next; | |
997 | ||
998 | return rule; | |
999 | } | |
1000 | ||
1001 | /* If the user specified a source path substitution rule that applies | |
1002 | to PATH, then apply it and return the new path. This new path must | |
c378eb4e | 1003 | be deallocated afterwards. |
2f61ca93 JB |
1004 | |
1005 | Return NULL if no substitution rule was specified by the user, | |
1006 | or if no rule applied to the given PATH. */ | |
1007 | ||
fbd9ab74 | 1008 | char * |
2f61ca93 JB |
1009 | rewrite_source_path (const char *path) |
1010 | { | |
1011 | const struct substitute_path_rule *rule = get_substitute_path_rule (path); | |
1012 | char *new_path; | |
1013 | int from_len; | |
1014 | ||
1015 | if (rule == NULL) | |
1016 | return NULL; | |
1017 | ||
1018 | from_len = strlen (rule->from); | |
1019 | ||
1020 | /* Compute the rewritten path and return it. */ | |
1021 | ||
1022 | new_path = | |
1023 | (char *) xmalloc (strlen (path) + 1 + strlen (rule->to) - from_len); | |
1024 | strcpy (new_path, rule->to); | |
1025 | strcat (new_path, path + from_len); | |
1026 | ||
1027 | return new_path; | |
1028 | } | |
1029 | ||
ccefe4c4 | 1030 | int |
e2357892 | 1031 | find_and_open_source (const char *filename, |
5e987968 AS |
1032 | const char *dirname, |
1033 | char **fullname) | |
c906108c SS |
1034 | { |
1035 | char *path = source_path; | |
31889e00 | 1036 | const char *p; |
c906108c | 1037 | int result; |
795d915c | 1038 | struct cleanup *cleanup; |
c906108c | 1039 | |
c378eb4e | 1040 | /* Quick way out if we already know its full name. */ |
2f61ca93 | 1041 | |
57c22c6c | 1042 | if (*fullname) |
c906108c | 1043 | { |
2f61ca93 JB |
1044 | /* The user may have requested that source paths be rewritten |
1045 | according to substitution rules he provided. If a substitution | |
1046 | rule applies to this path, then apply it. */ | |
1047 | char *rewritten_fullname = rewrite_source_path (*fullname); | |
1048 | ||
1049 | if (rewritten_fullname != NULL) | |
1050 | { | |
1051 | xfree (*fullname); | |
1052 | *fullname = rewritten_fullname; | |
1053 | } | |
1054 | ||
614c279d | 1055 | result = gdb_open_cloexec (*fullname, OPEN_MODE, 0); |
c906108c | 1056 | if (result >= 0) |
bc3aa6c3 | 1057 | { |
f5b95b50 | 1058 | char *lpath = gdb_realpath (*fullname); |
bc3aa6c3 DE |
1059 | |
1060 | xfree (*fullname); | |
1061 | *fullname = lpath; | |
1062 | return result; | |
1063 | } | |
1064 | ||
c378eb4e | 1065 | /* Didn't work -- free old one, try again. */ |
2dc74dc1 | 1066 | xfree (*fullname); |
57c22c6c | 1067 | *fullname = NULL; |
c906108c SS |
1068 | } |
1069 | ||
795d915c TT |
1070 | cleanup = make_cleanup (null_cleanup, NULL); |
1071 | ||
57c22c6c | 1072 | if (dirname != NULL) |
c906108c | 1073 | { |
2f61ca93 JB |
1074 | /* If necessary, rewrite the compilation directory name according |
1075 | to the source path substitution rules specified by the user. */ | |
1076 | ||
1077 | char *rewritten_dirname = rewrite_source_path (dirname); | |
1078 | ||
1079 | if (rewritten_dirname != NULL) | |
1080 | { | |
1081 | make_cleanup (xfree, rewritten_dirname); | |
1082 | dirname = rewritten_dirname; | |
1083 | } | |
1084 | ||
c378eb4e MS |
1085 | /* Replace a path entry of $cdir with the compilation directory |
1086 | name. */ | |
c906108c SS |
1087 | #define cdir_len 5 |
1088 | /* We cast strstr's result in case an ANSIhole has made it const, | |
c378eb4e | 1089 | which produces a "required warning" when assigned to a nonconst. */ |
c5aa993b | 1090 | p = (char *) strstr (source_path, "$cdir"); |
c906108c | 1091 | if (p && (p == path || p[-1] == DIRNAME_SEPARATOR) |
c5aa993b | 1092 | && (p[cdir_len] == DIRNAME_SEPARATOR || p[cdir_len] == '\0')) |
c906108c SS |
1093 | { |
1094 | int len; | |
1095 | ||
1096 | path = (char *) | |
57c22c6c | 1097 | alloca (strlen (source_path) + 1 + strlen (dirname) + 1); |
c906108c | 1098 | len = p - source_path; |
c5aa993b | 1099 | strncpy (path, source_path, len); /* Before $cdir */ |
3e43a32a MS |
1100 | strcpy (path + len, dirname); /* new stuff */ |
1101 | strcat (path + len, source_path + len + cdir_len); /* After | |
1102 | $cdir */ | |
c906108c SS |
1103 | } |
1104 | } | |
8da2a1df DJ |
1105 | |
1106 | if (IS_ABSOLUTE_PATH (filename)) | |
56163ce1 | 1107 | { |
8da2a1df DJ |
1108 | /* If filename is absolute path, try the source path |
1109 | substitution on it. */ | |
56163ce1 JB |
1110 | char *rewritten_filename = rewrite_source_path (filename); |
1111 | ||
1112 | if (rewritten_filename != NULL) | |
1113 | { | |
1114 | make_cleanup (xfree, rewritten_filename); | |
1115 | filename = rewritten_filename; | |
1116 | } | |
1117 | } | |
c906108c | 1118 | |
492c0ab7 JK |
1119 | result = openp (path, OPF_SEARCH_IN_PATH | OPF_RETURN_REALPATH, filename, |
1120 | OPEN_MODE, fullname); | |
c906108c SS |
1121 | if (result < 0) |
1122 | { | |
c378eb4e | 1123 | /* Didn't work. Try using just the basename. */ |
57c22c6c BR |
1124 | p = lbasename (filename); |
1125 | if (p != filename) | |
492c0ab7 JK |
1126 | result = openp (path, OPF_SEARCH_IN_PATH | OPF_RETURN_REALPATH, p, |
1127 | OPEN_MODE, fullname); | |
c906108c | 1128 | } |
c906108c | 1129 | |
795d915c | 1130 | do_cleanups (cleanup); |
c906108c SS |
1131 | return result; |
1132 | } | |
1133 | ||
57c22c6c BR |
1134 | /* Open a source file given a symtab S. Returns a file descriptor or |
1135 | negative number for error. | |
1136 | ||
c378eb4e | 1137 | This function is a convience function to find_and_open_source. */ |
57c22c6c BR |
1138 | |
1139 | int | |
1140 | open_source_file (struct symtab *s) | |
1141 | { | |
5e987968 AS |
1142 | if (!s) |
1143 | return -1; | |
57c22c6c | 1144 | |
ee6f8984 | 1145 | return find_and_open_source (s->filename, SYMTAB_DIRNAME (s), &s->fullname); |
57c22c6c BR |
1146 | } |
1147 | ||
1148 | /* Finds the fullname that a symtab represents. | |
c906108c | 1149 | |
f35a17b5 JK |
1150 | This functions finds the fullname and saves it in s->fullname. |
1151 | It will also return the value. | |
57c22c6c BR |
1152 | |
1153 | If this function fails to find the file that this symtab represents, | |
f35a17b5 JK |
1154 | the expected fullname is used. Therefore the files does not have to |
1155 | exist. */ | |
256f06f3 | 1156 | |
0b0865da | 1157 | const char * |
57c22c6c | 1158 | symtab_to_fullname (struct symtab *s) |
c906108c | 1159 | { |
256f06f3 DE |
1160 | /* Use cached copy if we have it. |
1161 | We rely on forget_cached_source_info being called appropriately | |
1162 | to handle cases like the file being moved. */ | |
f35a17b5 | 1163 | if (s->fullname == NULL) |
5e987968 | 1164 | { |
ee6f8984 DE |
1165 | int fd = find_and_open_source (s->filename, SYMTAB_DIRNAME (s), |
1166 | &s->fullname); | |
f35a17b5 JK |
1167 | |
1168 | if (fd >= 0) | |
1169 | close (fd); | |
f35a17b5 | 1170 | else |
f0a4b570 JK |
1171 | { |
1172 | char *fullname; | |
1173 | struct cleanup *back_to; | |
1174 | ||
1175 | /* rewrite_source_path would be applied by find_and_open_source, we | |
1176 | should report the pathname where GDB tried to find the file. */ | |
1177 | ||
ee6f8984 | 1178 | if (SYMTAB_DIRNAME (s) == NULL || IS_ABSOLUTE_PATH (s->filename)) |
f0a4b570 JK |
1179 | fullname = xstrdup (s->filename); |
1180 | else | |
b36cec19 PA |
1181 | fullname = concat (SYMTAB_DIRNAME (s), SLASH_STRING, |
1182 | s->filename, (char *) NULL); | |
f0a4b570 JK |
1183 | |
1184 | back_to = make_cleanup (xfree, fullname); | |
1185 | s->fullname = rewrite_source_path (fullname); | |
1186 | if (s->fullname == NULL) | |
1187 | s->fullname = xstrdup (fullname); | |
1188 | do_cleanups (back_to); | |
1189 | } | |
f35a17b5 | 1190 | } |
c906108c | 1191 | |
f35a17b5 | 1192 | return s->fullname; |
57c22c6c | 1193 | } |
1b56eb55 JK |
1194 | |
1195 | /* See commentary in source.h. */ | |
1196 | ||
1197 | const char * | |
1198 | symtab_to_filename_for_display (struct symtab *symtab) | |
1199 | { | |
1200 | if (filename_display_string == filename_display_basename) | |
1201 | return lbasename (symtab->filename); | |
1202 | else if (filename_display_string == filename_display_absolute) | |
1203 | return symtab_to_fullname (symtab); | |
1204 | else if (filename_display_string == filename_display_relative) | |
1205 | return symtab->filename; | |
1206 | else | |
1207 | internal_error (__FILE__, __LINE__, _("invalid filename_display_string")); | |
1208 | } | |
5e987968 | 1209 | \f |
c906108c SS |
1210 | /* Create and initialize the table S->line_charpos that records |
1211 | the positions of the lines in the source file, which is assumed | |
1212 | to be open on descriptor DESC. | |
1213 | All set S->nlines to the number of such lines. */ | |
1214 | ||
1215 | void | |
fba45db2 | 1216 | find_source_lines (struct symtab *s, int desc) |
c906108c SS |
1217 | { |
1218 | struct stat st; | |
52f0bd74 | 1219 | char *data, *p, *end; |
c906108c SS |
1220 | int nlines = 0; |
1221 | int lines_allocated = 1000; | |
1222 | int *line_charpos; | |
1223 | long mtime = 0; | |
1224 | int size; | |
1225 | ||
be8ca11b | 1226 | gdb_assert (s); |
8d749320 | 1227 | line_charpos = XNEWVEC (int, lines_allocated); |
c906108c | 1228 | if (fstat (desc, &st) < 0) |
05cba821 | 1229 | perror_with_name (symtab_to_filename_for_display (s)); |
c906108c | 1230 | |
eb822aa6 DE |
1231 | if (SYMTAB_OBJFILE (s) != NULL && SYMTAB_OBJFILE (s)->obfd != NULL) |
1232 | mtime = SYMTAB_OBJFILE (s)->mtime; | |
c906108c | 1233 | else if (exec_bfd) |
c04ea773 | 1234 | mtime = exec_bfd_mtime; |
c906108c SS |
1235 | |
1236 | if (mtime && mtime < st.st_mtime) | |
8a3fe4f8 | 1237 | warning (_("Source file is more recent than executable.")); |
c906108c | 1238 | |
c906108c SS |
1239 | { |
1240 | struct cleanup *old_cleanups; | |
1241 | ||
1242 | /* st_size might be a large type, but we only support source files whose | |
1243 | size fits in an int. */ | |
1244 | size = (int) st.st_size; | |
1245 | ||
1246 | /* Use malloc, not alloca, because this may be pretty large, and we may | |
1247 | run into various kinds of limits on stack size. */ | |
1248 | data = (char *) xmalloc (size); | |
b8c9b27d | 1249 | old_cleanups = make_cleanup (xfree, data); |
c906108c SS |
1250 | |
1251 | /* Reassign `size' to result of read for systems where \r\n -> \n. */ | |
1252 | size = myread (desc, data, size); | |
1253 | if (size < 0) | |
05cba821 | 1254 | perror_with_name (symtab_to_filename_for_display (s)); |
c906108c SS |
1255 | end = data + size; |
1256 | p = data; | |
1257 | line_charpos[0] = 0; | |
1258 | nlines = 1; | |
1259 | while (p != end) | |
1260 | { | |
1261 | if (*p++ == '\n' | |
c5aa993b | 1262 | /* A newline at the end does not start a new line. */ |
c906108c SS |
1263 | && p != end) |
1264 | { | |
1265 | if (nlines == lines_allocated) | |
1266 | { | |
1267 | lines_allocated *= 2; | |
1268 | line_charpos = | |
0efffb96 AC |
1269 | (int *) xrealloc ((char *) line_charpos, |
1270 | sizeof (int) * lines_allocated); | |
c906108c SS |
1271 | } |
1272 | line_charpos[nlines++] = p - data; | |
1273 | } | |
1274 | } | |
1275 | do_cleanups (old_cleanups); | |
1276 | } | |
d4d4db8a | 1277 | |
c906108c SS |
1278 | s->nlines = nlines; |
1279 | s->line_charpos = | |
0efffb96 | 1280 | (int *) xrealloc ((char *) line_charpos, nlines * sizeof (int)); |
c906108c SS |
1281 | |
1282 | } | |
1283 | ||
c906108c | 1284 | \f |
c5aa993b | 1285 | |
c906108c SS |
1286 | /* Get full pathname and line number positions for a symtab. |
1287 | Return nonzero if line numbers may have changed. | |
1288 | Set *FULLNAME to actual name of the file as found by `openp', | |
1289 | or to 0 if the file is not found. */ | |
1290 | ||
1291 | static int | |
fba45db2 | 1292 | get_filename_and_charpos (struct symtab *s, char **fullname) |
c906108c | 1293 | { |
52f0bd74 | 1294 | int desc, linenums_changed = 0; |
9fe4a216 | 1295 | struct cleanup *cleanups; |
c5aa993b | 1296 | |
c906108c SS |
1297 | desc = open_source_file (s); |
1298 | if (desc < 0) | |
1299 | { | |
1300 | if (fullname) | |
1301 | *fullname = NULL; | |
1302 | return 0; | |
c5aa993b | 1303 | } |
9fe4a216 | 1304 | cleanups = make_cleanup_close (desc); |
c906108c SS |
1305 | if (fullname) |
1306 | *fullname = s->fullname; | |
c5aa993b JM |
1307 | if (s->line_charpos == 0) |
1308 | linenums_changed = 1; | |
1309 | if (linenums_changed) | |
1310 | find_source_lines (s, desc); | |
9fe4a216 | 1311 | do_cleanups (cleanups); |
c906108c SS |
1312 | return linenums_changed; |
1313 | } | |
1314 | ||
1315 | /* Print text describing the full name of the source file S | |
1316 | and the line number LINE and its corresponding character position. | |
1317 | The text starts with two Ctrl-z so that the Emacs-GDB interface | |
1318 | can easily find it. | |
1319 | ||
1320 | MID_STATEMENT is nonzero if the PC is not at the beginning of that line. | |
1321 | ||
1322 | Return 1 if successful, 0 if could not find the file. */ | |
1323 | ||
1324 | int | |
fba45db2 KB |
1325 | identify_source_line (struct symtab *s, int line, int mid_statement, |
1326 | CORE_ADDR pc) | |
c906108c SS |
1327 | { |
1328 | if (s->line_charpos == 0) | |
c5aa993b | 1329 | get_filename_and_charpos (s, (char **) NULL); |
c906108c SS |
1330 | if (s->fullname == 0) |
1331 | return 0; | |
1332 | if (line > s->nlines) | |
1333 | /* Don't index off the end of the line_charpos array. */ | |
1334 | return 0; | |
1335 | annotate_source (s->fullname, line, s->line_charpos[line - 1], | |
eb822aa6 | 1336 | mid_statement, get_objfile_arch (SYMTAB_OBJFILE (s)), pc); |
c906108c SS |
1337 | |
1338 | current_source_line = line; | |
c906108c | 1339 | current_source_symtab = s; |
5166082f | 1340 | clear_lines_listed_range (); |
c906108c SS |
1341 | return 1; |
1342 | } | |
c906108c | 1343 | \f |
c5aa993b | 1344 | |
c906108c | 1345 | /* Print source lines from the file of symtab S, |
c378eb4e | 1346 | starting with line number LINE and stopping before line number STOPLINE. */ |
c906108c SS |
1347 | |
1348 | static void | |
dfaae886 | 1349 | print_source_lines_base (struct symtab *s, int line, int stopline, |
8d297bbf | 1350 | print_source_lines_flags flags) |
c906108c | 1351 | { |
52f0bd74 AC |
1352 | int c; |
1353 | int desc; | |
f4dfd9c0 | 1354 | int noprint = 0; |
52f0bd74 | 1355 | FILE *stream; |
c906108c | 1356 | int nlines = stopline - line; |
7c8a8b04 | 1357 | struct cleanup *cleanup; |
79a45e25 | 1358 | struct ui_out *uiout = current_uiout; |
c906108c | 1359 | |
c378eb4e | 1360 | /* Regardless of whether we can open the file, set current_source_symtab. */ |
c906108c SS |
1361 | current_source_symtab = s; |
1362 | current_source_line = line; | |
1363 | first_line_listed = line; | |
1364 | ||
3e43a32a | 1365 | /* If printing of source lines is disabled, just print file and line |
c378eb4e | 1366 | number. */ |
8b93c638 JM |
1367 | if (ui_out_test_flags (uiout, ui_source_list)) |
1368 | { | |
c378eb4e | 1369 | /* Only prints "No such file or directory" once. */ |
c5aa993b JM |
1370 | if ((s != last_source_visited) || (!last_source_error)) |
1371 | { | |
1372 | last_source_visited = s; | |
1373 | desc = open_source_file (s); | |
1374 | } | |
1375 | else | |
1376 | { | |
1377 | desc = last_source_error; | |
dfaae886 | 1378 | flags |= PRINT_SOURCE_LINES_NOERROR; |
c5aa993b | 1379 | } |
8b93c638 JM |
1380 | } |
1381 | else | |
1382 | { | |
f4dfd9c0 | 1383 | desc = last_source_error; |
8d297bbf | 1384 | flags |= PRINT_SOURCE_LINES_NOERROR; |
f4dfd9c0 | 1385 | noprint = 1; |
8b93c638 | 1386 | } |
c906108c | 1387 | |
f4dfd9c0 | 1388 | if (desc < 0 || noprint) |
c906108c SS |
1389 | { |
1390 | last_source_error = desc; | |
1391 | ||
dfaae886 | 1392 | if (!(flags & PRINT_SOURCE_LINES_NOERROR)) |
c5aa993b | 1393 | { |
05cba821 JK |
1394 | const char *filename = symtab_to_filename_for_display (s); |
1395 | int len = strlen (filename) + 100; | |
224c3ddb | 1396 | char *name = (char *) alloca (len); |
08850b56 | 1397 | |
05cba821 | 1398 | xsnprintf (name, len, "%d\t%s", line, filename); |
c906108c SS |
1399 | print_sys_errmsg (name, errno); |
1400 | } | |
1401 | else | |
fc0ae648 AB |
1402 | { |
1403 | ui_out_field_int (uiout, "line", line); | |
1404 | ui_out_text (uiout, "\tin "); | |
56d397a3 | 1405 | |
23eb71e4 JK |
1406 | /* CLI expects only the "file" field. TUI expects only the |
1407 | "fullname" field (and TUI does break if "file" is printed). | |
1408 | MI expects both fields. ui_source_list is set only for CLI, | |
1409 | not for TUI. */ | |
1410 | if (ui_out_is_mi_like_p (uiout) | |
1411 | || ui_out_test_flags (uiout, ui_source_list)) | |
1412 | ui_out_field_string (uiout, "file", | |
1413 | symtab_to_filename_for_display (s)); | |
56d397a3 JK |
1414 | if (ui_out_is_mi_like_p (uiout) |
1415 | || !ui_out_test_flags (uiout, ui_source_list)) | |
8f1b8b82 JK |
1416 | { |
1417 | const char *s_fullname = symtab_to_fullname (s); | |
1418 | char *local_fullname; | |
1419 | ||
1420 | /* ui_out_field_string may free S_FULLNAME by calling | |
1421 | open_source_file for it again. See e.g., | |
1422 | tui_field_string->tui_show_source. */ | |
224c3ddb | 1423 | local_fullname = (char *) alloca (strlen (s_fullname) + 1); |
8f1b8b82 JK |
1424 | strcpy (local_fullname, s_fullname); |
1425 | ||
1426 | ui_out_field_string (uiout, "fullname", local_fullname); | |
1427 | } | |
23eb71e4 | 1428 | |
fc0ae648 AB |
1429 | ui_out_text (uiout, "\n"); |
1430 | } | |
c906108c SS |
1431 | |
1432 | return; | |
1433 | } | |
1434 | ||
1435 | last_source_error = 0; | |
1436 | ||
1437 | if (s->line_charpos == 0) | |
1438 | find_source_lines (s, desc); | |
1439 | ||
1440 | if (line < 1 || line > s->nlines) | |
1441 | { | |
1442 | close (desc); | |
8a3fe4f8 | 1443 | error (_("Line number %d out of range; %s has %d lines."), |
05cba821 | 1444 | line, symtab_to_filename_for_display (s), s->nlines); |
c906108c SS |
1445 | } |
1446 | ||
1447 | if (lseek (desc, s->line_charpos[line - 1], 0) < 0) | |
1448 | { | |
1449 | close (desc); | |
05cba821 | 1450 | perror_with_name (symtab_to_filename_for_display (s)); |
c906108c SS |
1451 | } |
1452 | ||
1453 | stream = fdopen (desc, FDOPEN_MODE); | |
1454 | clearerr (stream); | |
7c8a8b04 | 1455 | cleanup = make_cleanup_fclose (stream); |
c906108c SS |
1456 | |
1457 | while (nlines-- > 0) | |
1458 | { | |
8b93c638 JM |
1459 | char buf[20]; |
1460 | ||
1461 | c = fgetc (stream); | |
1462 | if (c == EOF) | |
1463 | break; | |
1464 | last_line_listed = current_source_line; | |
4cd29721 MM |
1465 | if (flags & PRINT_SOURCE_LINES_FILENAME) |
1466 | { | |
05cba821 | 1467 | ui_out_text (uiout, symtab_to_filename_for_display (s)); |
4cd29721 MM |
1468 | ui_out_text (uiout, ":"); |
1469 | } | |
08850b56 | 1470 | xsnprintf (buf, sizeof (buf), "%d\t", current_source_line++); |
8b93c638 JM |
1471 | ui_out_text (uiout, buf); |
1472 | do | |
1473 | { | |
1474 | if (c < 040 && c != '\t' && c != '\n' && c != '\r') | |
1475 | { | |
08850b56 | 1476 | xsnprintf (buf, sizeof (buf), "^%c", c + 0100); |
8b93c638 JM |
1477 | ui_out_text (uiout, buf); |
1478 | } | |
1479 | else if (c == 0177) | |
1480 | ui_out_text (uiout, "^?"); | |
8b93c638 JM |
1481 | else if (c == '\r') |
1482 | { | |
1483 | /* Skip a \r character, but only before a \n. */ | |
1484 | int c1 = fgetc (stream); | |
1485 | ||
1486 | if (c1 != '\n') | |
1487 | printf_filtered ("^%c", c + 0100); | |
1488 | if (c1 != EOF) | |
1489 | ungetc (c1, stream); | |
1490 | } | |
8b93c638 JM |
1491 | else |
1492 | { | |
08850b56 | 1493 | xsnprintf (buf, sizeof (buf), "%c", c); |
8b93c638 JM |
1494 | ui_out_text (uiout, buf); |
1495 | } | |
1496 | } | |
1497 | while (c != '\n' && (c = fgetc (stream)) >= 0); | |
c906108c SS |
1498 | } |
1499 | ||
7c8a8b04 | 1500 | do_cleanups (cleanup); |
c906108c SS |
1501 | } |
1502 | \f | |
1503 | /* Show source lines from the file of symtab S, starting with line | |
f132ba9d | 1504 | number LINE and stopping before line number STOPLINE. If this is |
c906108c | 1505 | not the command line version, then the source is shown in the source |
c378eb4e | 1506 | window otherwise it is simply printed. */ |
c906108c | 1507 | |
c5aa993b | 1508 | void |
dfaae886 | 1509 | print_source_lines (struct symtab *s, int line, int stopline, |
8d297bbf | 1510 | print_source_lines_flags flags) |
c906108c | 1511 | { |
dfaae886 | 1512 | print_source_lines_base (s, line, stopline, flags); |
c906108c SS |
1513 | } |
1514 | \f | |
c906108c SS |
1515 | /* Print info on range of pc's in a specified line. */ |
1516 | ||
1517 | static void | |
fba45db2 | 1518 | line_info (char *arg, int from_tty) |
c906108c SS |
1519 | { |
1520 | struct symtabs_and_lines sals; | |
1521 | struct symtab_and_line sal; | |
1522 | CORE_ADDR start_pc, end_pc; | |
1523 | int i; | |
f8eba3c6 | 1524 | struct cleanup *cleanups; |
c906108c | 1525 | |
fe39c653 | 1526 | init_sal (&sal); /* initialize to zeroes */ |
c906108c SS |
1527 | |
1528 | if (arg == 0) | |
1529 | { | |
1530 | sal.symtab = current_source_symtab; | |
f8eba3c6 | 1531 | sal.pspace = current_program_space; |
5166082f PA |
1532 | if (last_line_listed != 0) |
1533 | sal.line = last_line_listed; | |
1534 | else | |
1535 | sal.line = current_source_line; | |
1536 | ||
c906108c | 1537 | sals.nelts = 1; |
8d749320 | 1538 | sals.sals = XNEW (struct symtab_and_line); |
c906108c SS |
1539 | sals.sals[0] = sal; |
1540 | } | |
1541 | else | |
1542 | { | |
39cf75f7 | 1543 | sals = decode_line_with_last_displayed (arg, DECODE_LINE_LIST_MODE); |
c5aa993b | 1544 | |
c906108c SS |
1545 | dont_repeat (); |
1546 | } | |
1547 | ||
f8eba3c6 TT |
1548 | cleanups = make_cleanup (xfree, sals.sals); |
1549 | ||
c906108c | 1550 | /* C++ More than one line may have been specified, as when the user |
c378eb4e | 1551 | specifies an overloaded function name. Print info on them all. */ |
c906108c SS |
1552 | for (i = 0; i < sals.nelts; i++) |
1553 | { | |
1554 | sal = sals.sals[i]; | |
f8eba3c6 TT |
1555 | if (sal.pspace != current_program_space) |
1556 | continue; | |
c5aa993b | 1557 | |
c906108c SS |
1558 | if (sal.symtab == 0) |
1559 | { | |
5af949e3 UW |
1560 | struct gdbarch *gdbarch = get_current_arch (); |
1561 | ||
a3f17187 | 1562 | printf_filtered (_("No line number information available")); |
c906108c SS |
1563 | if (sal.pc != 0) |
1564 | { | |
1565 | /* This is useful for "info line *0x7f34". If we can't tell the | |
c5aa993b JM |
1566 | user about a source line, at least let them have the symbolic |
1567 | address. */ | |
c906108c SS |
1568 | printf_filtered (" for address "); |
1569 | wrap_here (" "); | |
5af949e3 | 1570 | print_address (gdbarch, sal.pc, gdb_stdout); |
c906108c SS |
1571 | } |
1572 | else | |
1573 | printf_filtered ("."); | |
1574 | printf_filtered ("\n"); | |
1575 | } | |
1576 | else if (sal.line > 0 | |
1577 | && find_line_pc_range (sal, &start_pc, &end_pc)) | |
1578 | { | |
eb822aa6 DE |
1579 | struct gdbarch *gdbarch |
1580 | = get_objfile_arch (SYMTAB_OBJFILE (sal.symtab)); | |
5af949e3 | 1581 | |
c906108c SS |
1582 | if (start_pc == end_pc) |
1583 | { | |
1584 | printf_filtered ("Line %d of \"%s\"", | |
05cba821 JK |
1585 | sal.line, |
1586 | symtab_to_filename_for_display (sal.symtab)); | |
c906108c SS |
1587 | wrap_here (" "); |
1588 | printf_filtered (" is at address "); | |
5af949e3 | 1589 | print_address (gdbarch, start_pc, gdb_stdout); |
c906108c SS |
1590 | wrap_here (" "); |
1591 | printf_filtered (" but contains no code.\n"); | |
1592 | } | |
1593 | else | |
1594 | { | |
1595 | printf_filtered ("Line %d of \"%s\"", | |
05cba821 JK |
1596 | sal.line, |
1597 | symtab_to_filename_for_display (sal.symtab)); | |
c906108c SS |
1598 | wrap_here (" "); |
1599 | printf_filtered (" starts at address "); | |
5af949e3 | 1600 | print_address (gdbarch, start_pc, gdb_stdout); |
c906108c SS |
1601 | wrap_here (" "); |
1602 | printf_filtered (" and ends at "); | |
5af949e3 | 1603 | print_address (gdbarch, end_pc, gdb_stdout); |
c906108c SS |
1604 | printf_filtered (".\n"); |
1605 | } | |
1606 | ||
1607 | /* x/i should display this line's code. */ | |
5af949e3 | 1608 | set_next_address (gdbarch, start_pc); |
c906108c SS |
1609 | |
1610 | /* Repeating "info line" should do the following line. */ | |
1611 | last_line_listed = sal.line + 1; | |
1612 | ||
1613 | /* If this is the only line, show the source code. If it could | |
1614 | not find the file, don't do anything special. */ | |
1615 | if (annotation_level && sals.nelts == 1) | |
1616 | identify_source_line (sal.symtab, sal.line, 0, start_pc); | |
1617 | } | |
1618 | else | |
1619 | /* Is there any case in which we get here, and have an address | |
1620 | which the user would want to see? If we have debugging symbols | |
1621 | and no line numbers? */ | |
a3f17187 | 1622 | printf_filtered (_("Line number %d is out of range for \"%s\".\n"), |
05cba821 | 1623 | sal.line, symtab_to_filename_for_display (sal.symtab)); |
c906108c | 1624 | } |
f8eba3c6 | 1625 | do_cleanups (cleanups); |
c906108c SS |
1626 | } |
1627 | \f | |
1628 | /* Commands to search the source file for a regexp. */ | |
1629 | ||
c906108c | 1630 | static void |
fba45db2 | 1631 | forward_search_command (char *regex, int from_tty) |
c906108c | 1632 | { |
52f0bd74 AC |
1633 | int c; |
1634 | int desc; | |
1635 | FILE *stream; | |
c906108c SS |
1636 | int line; |
1637 | char *msg; | |
9fe4a216 | 1638 | struct cleanup *cleanups; |
c906108c | 1639 | |
c906108c | 1640 | line = last_line_listed + 1; |
c906108c SS |
1641 | |
1642 | msg = (char *) re_comp (regex); | |
1643 | if (msg) | |
8a3fe4f8 | 1644 | error (("%s"), msg); |
c906108c SS |
1645 | |
1646 | if (current_source_symtab == 0) | |
1647 | select_source_symtab (0); | |
1648 | ||
1649 | desc = open_source_file (current_source_symtab); | |
1650 | if (desc < 0) | |
05cba821 | 1651 | perror_with_name (symtab_to_filename_for_display (current_source_symtab)); |
9fe4a216 | 1652 | cleanups = make_cleanup_close (desc); |
c906108c SS |
1653 | |
1654 | if (current_source_symtab->line_charpos == 0) | |
1655 | find_source_lines (current_source_symtab, desc); | |
1656 | ||
1657 | if (line < 1 || line > current_source_symtab->nlines) | |
9fe4a216 | 1658 | error (_("Expression not found")); |
c906108c SS |
1659 | |
1660 | if (lseek (desc, current_source_symtab->line_charpos[line - 1], 0) < 0) | |
05cba821 | 1661 | perror_with_name (symtab_to_filename_for_display (current_source_symtab)); |
c906108c | 1662 | |
9fe4a216 | 1663 | discard_cleanups (cleanups); |
c906108c SS |
1664 | stream = fdopen (desc, FDOPEN_MODE); |
1665 | clearerr (stream); | |
9fe4a216 | 1666 | cleanups = make_cleanup_fclose (stream); |
c5aa993b JM |
1667 | while (1) |
1668 | { | |
1669 | static char *buf = NULL; | |
aa1ee363 | 1670 | char *p; |
c5aa993b JM |
1671 | int cursize, newsize; |
1672 | ||
1673 | cursize = 256; | |
224c3ddb | 1674 | buf = (char *) xmalloc (cursize); |
c5aa993b JM |
1675 | p = buf; |
1676 | ||
40aea477 | 1677 | c = fgetc (stream); |
c5aa993b JM |
1678 | if (c == EOF) |
1679 | break; | |
1680 | do | |
c906108c | 1681 | { |
c5aa993b JM |
1682 | *p++ = c; |
1683 | if (p - buf == cursize) | |
1684 | { | |
1685 | newsize = cursize + cursize / 2; | |
224c3ddb | 1686 | buf = (char *) xrealloc (buf, newsize); |
c5aa993b JM |
1687 | p = buf + cursize; |
1688 | cursize = newsize; | |
1689 | } | |
c906108c | 1690 | } |
40aea477 | 1691 | while (c != '\n' && (c = fgetc (stream)) >= 0); |
c906108c | 1692 | |
7be570e7 JM |
1693 | /* Remove the \r, if any, at the end of the line, otherwise |
1694 | regular expressions that end with $ or \n won't work. */ | |
1695 | if (p - buf > 1 && p[-2] == '\r') | |
1696 | { | |
1697 | p--; | |
1698 | p[-1] = '\n'; | |
1699 | } | |
7be570e7 | 1700 | |
c378eb4e | 1701 | /* We now have a source line in buf, null terminate and match. */ |
c5aa993b JM |
1702 | *p = 0; |
1703 | if (re_exec (buf) > 0) | |
1704 | { | |
c378eb4e | 1705 | /* Match! */ |
e681b284 | 1706 | do_cleanups (cleanups); |
c5aa993b | 1707 | print_source_lines (current_source_symtab, line, line + 1, 0); |
4fa62494 | 1708 | set_internalvar_integer (lookup_internalvar ("_"), line); |
c5aa993b JM |
1709 | current_source_line = max (line - lines_to_list / 2, 1); |
1710 | return; | |
1711 | } | |
1712 | line++; | |
1713 | } | |
c906108c | 1714 | |
a3f17187 | 1715 | printf_filtered (_("Expression not found\n")); |
9fe4a216 | 1716 | do_cleanups (cleanups); |
c906108c SS |
1717 | } |
1718 | ||
c906108c | 1719 | static void |
fba45db2 | 1720 | reverse_search_command (char *regex, int from_tty) |
c906108c | 1721 | { |
52f0bd74 AC |
1722 | int c; |
1723 | int desc; | |
1724 | FILE *stream; | |
c906108c SS |
1725 | int line; |
1726 | char *msg; | |
9fe4a216 | 1727 | struct cleanup *cleanups; |
063190b6 | 1728 | |
c906108c | 1729 | line = last_line_listed - 1; |
c906108c SS |
1730 | |
1731 | msg = (char *) re_comp (regex); | |
1732 | if (msg) | |
8a3fe4f8 | 1733 | error (("%s"), msg); |
c906108c SS |
1734 | |
1735 | if (current_source_symtab == 0) | |
1736 | select_source_symtab (0); | |
1737 | ||
1738 | desc = open_source_file (current_source_symtab); | |
1739 | if (desc < 0) | |
05cba821 | 1740 | perror_with_name (symtab_to_filename_for_display (current_source_symtab)); |
9fe4a216 | 1741 | cleanups = make_cleanup_close (desc); |
c906108c SS |
1742 | |
1743 | if (current_source_symtab->line_charpos == 0) | |
1744 | find_source_lines (current_source_symtab, desc); | |
1745 | ||
1746 | if (line < 1 || line > current_source_symtab->nlines) | |
9fe4a216 | 1747 | error (_("Expression not found")); |
c906108c SS |
1748 | |
1749 | if (lseek (desc, current_source_symtab->line_charpos[line - 1], 0) < 0) | |
05cba821 | 1750 | perror_with_name (symtab_to_filename_for_display (current_source_symtab)); |
c906108c | 1751 | |
9fe4a216 | 1752 | discard_cleanups (cleanups); |
c906108c SS |
1753 | stream = fdopen (desc, FDOPEN_MODE); |
1754 | clearerr (stream); | |
9fe4a216 | 1755 | cleanups = make_cleanup_fclose (stream); |
c906108c SS |
1756 | while (line > 1) |
1757 | { | |
c378eb4e MS |
1758 | /* FIXME!!! We walk right off the end of buf if we get a long line!!! */ |
1759 | char buf[4096]; /* Should be reasonable??? */ | |
aa1ee363 | 1760 | char *p = buf; |
c906108c | 1761 | |
40aea477 | 1762 | c = fgetc (stream); |
c906108c SS |
1763 | if (c == EOF) |
1764 | break; | |
c5aa993b JM |
1765 | do |
1766 | { | |
1767 | *p++ = c; | |
1768 | } | |
40aea477 | 1769 | while (c != '\n' && (c = fgetc (stream)) >= 0); |
c906108c | 1770 | |
7be570e7 JM |
1771 | /* Remove the \r, if any, at the end of the line, otherwise |
1772 | regular expressions that end with $ or \n won't work. */ | |
1773 | if (p - buf > 1 && p[-2] == '\r') | |
1774 | { | |
1775 | p--; | |
1776 | p[-1] = '\n'; | |
1777 | } | |
7be570e7 | 1778 | |
c906108c SS |
1779 | /* We now have a source line in buf; null terminate and match. */ |
1780 | *p = 0; | |
1781 | if (re_exec (buf) > 0) | |
1782 | { | |
c378eb4e | 1783 | /* Match! */ |
e681b284 | 1784 | do_cleanups (cleanups); |
c5aa993b | 1785 | print_source_lines (current_source_symtab, line, line + 1, 0); |
4fa62494 | 1786 | set_internalvar_integer (lookup_internalvar ("_"), line); |
c906108c SS |
1787 | current_source_line = max (line - lines_to_list / 2, 1); |
1788 | return; | |
1789 | } | |
1790 | line--; | |
1791 | if (fseek (stream, current_source_symtab->line_charpos[line - 1], 0) < 0) | |
1792 | { | |
05cba821 JK |
1793 | const char *filename; |
1794 | ||
e681b284 | 1795 | do_cleanups (cleanups); |
05cba821 JK |
1796 | filename = symtab_to_filename_for_display (current_source_symtab); |
1797 | perror_with_name (filename); | |
c906108c SS |
1798 | } |
1799 | } | |
1800 | ||
a3f17187 | 1801 | printf_filtered (_("Expression not found\n")); |
9fe4a216 | 1802 | do_cleanups (cleanups); |
c906108c SS |
1803 | return; |
1804 | } | |
2f61ca93 JB |
1805 | |
1806 | /* If the last character of PATH is a directory separator, then strip it. */ | |
1807 | ||
1808 | static void | |
1809 | strip_trailing_directory_separator (char *path) | |
1810 | { | |
1811 | const int last = strlen (path) - 1; | |
1812 | ||
1813 | if (last < 0) | |
1814 | return; /* No stripping is needed if PATH is the empty string. */ | |
1815 | ||
1816 | if (IS_DIR_SEPARATOR (path[last])) | |
1817 | path[last] = '\0'; | |
1818 | } | |
1819 | ||
1820 | /* Return the path substitution rule that matches FROM. | |
1821 | Return NULL if no rule matches. */ | |
1822 | ||
1823 | static struct substitute_path_rule * | |
1824 | find_substitute_path_rule (const char *from) | |
1825 | { | |
1826 | struct substitute_path_rule *rule = substitute_path_rules; | |
1827 | ||
1828 | while (rule != NULL) | |
1829 | { | |
1830 | if (FILENAME_CMP (rule->from, from) == 0) | |
1831 | return rule; | |
1832 | rule = rule->next; | |
1833 | } | |
1834 | ||
1835 | return NULL; | |
1836 | } | |
1837 | ||
1838 | /* Add a new substitute-path rule at the end of the current list of rules. | |
1839 | The new rule will replace FROM into TO. */ | |
1840 | ||
29b0e8a2 | 1841 | void |
2f61ca93 JB |
1842 | add_substitute_path_rule (char *from, char *to) |
1843 | { | |
1844 | struct substitute_path_rule *rule; | |
8d749320 | 1845 | struct substitute_path_rule *new_rule = XNEW (struct substitute_path_rule); |
2f61ca93 | 1846 | |
2f61ca93 JB |
1847 | new_rule->from = xstrdup (from); |
1848 | new_rule->to = xstrdup (to); | |
1849 | new_rule->next = NULL; | |
1850 | ||
1851 | /* If the list of rules are empty, then insert the new rule | |
1852 | at the head of the list. */ | |
1853 | ||
1854 | if (substitute_path_rules == NULL) | |
1855 | { | |
1856 | substitute_path_rules = new_rule; | |
1857 | return; | |
1858 | } | |
1859 | ||
1860 | /* Otherwise, skip to the last rule in our list and then append | |
1861 | the new rule. */ | |
1862 | ||
1863 | rule = substitute_path_rules; | |
1864 | while (rule->next != NULL) | |
1865 | rule = rule->next; | |
1866 | ||
1867 | rule->next = new_rule; | |
1868 | } | |
1869 | ||
1870 | /* Remove the given source path substitution rule from the current list | |
1871 | of rules. The memory allocated for that rule is also deallocated. */ | |
1872 | ||
1873 | static void | |
1874 | delete_substitute_path_rule (struct substitute_path_rule *rule) | |
1875 | { | |
1876 | if (rule == substitute_path_rules) | |
1877 | substitute_path_rules = rule->next; | |
1878 | else | |
1879 | { | |
1880 | struct substitute_path_rule *prev = substitute_path_rules; | |
1881 | ||
1882 | while (prev != NULL && prev->next != rule) | |
1883 | prev = prev->next; | |
1884 | ||
1885 | gdb_assert (prev != NULL); | |
1886 | ||
1887 | prev->next = rule->next; | |
1888 | } | |
1889 | ||
1890 | xfree (rule->from); | |
1891 | xfree (rule->to); | |
1892 | xfree (rule); | |
1893 | } | |
1894 | ||
1895 | /* Implement the "show substitute-path" command. */ | |
1896 | ||
1897 | static void | |
1898 | show_substitute_path_command (char *args, int from_tty) | |
1899 | { | |
1900 | struct substitute_path_rule *rule = substitute_path_rules; | |
1901 | char **argv; | |
1902 | char *from = NULL; | |
5b3fca71 | 1903 | struct cleanup *cleanup; |
2f61ca93 | 1904 | |
d1a41061 | 1905 | argv = gdb_buildargv (args); |
5b3fca71 | 1906 | cleanup = make_cleanup_freeargv (argv); |
2f61ca93 JB |
1907 | |
1908 | /* We expect zero or one argument. */ | |
1909 | ||
1910 | if (argv != NULL && argv[0] != NULL && argv[1] != NULL) | |
1911 | error (_("Too many arguments in command")); | |
1912 | ||
1913 | if (argv != NULL && argv[0] != NULL) | |
1914 | from = argv[0]; | |
1915 | ||
1916 | /* Print the substitution rules. */ | |
1917 | ||
1918 | if (from != NULL) | |
1919 | printf_filtered | |
1920 | (_("Source path substitution rule matching `%s':\n"), from); | |
1921 | else | |
1922 | printf_filtered (_("List of all source path substitution rules:\n")); | |
1923 | ||
1924 | while (rule != NULL) | |
1925 | { | |
1e2ccb61 | 1926 | if (from == NULL || substitute_path_rule_matches (rule, from) != 0) |
2f61ca93 JB |
1927 | printf_filtered (" `%s' -> `%s'.\n", rule->from, rule->to); |
1928 | rule = rule->next; | |
1929 | } | |
5b3fca71 TT |
1930 | |
1931 | do_cleanups (cleanup); | |
2f61ca93 JB |
1932 | } |
1933 | ||
1934 | /* Implement the "unset substitute-path" command. */ | |
1935 | ||
1936 | static void | |
1937 | unset_substitute_path_command (char *args, int from_tty) | |
1938 | { | |
1939 | struct substitute_path_rule *rule = substitute_path_rules; | |
d1a41061 | 1940 | char **argv = gdb_buildargv (args); |
2f61ca93 JB |
1941 | char *from = NULL; |
1942 | int rule_found = 0; | |
5b3fca71 | 1943 | struct cleanup *cleanup; |
2f61ca93 JB |
1944 | |
1945 | /* This function takes either 0 or 1 argument. */ | |
1946 | ||
5b3fca71 | 1947 | cleanup = make_cleanup_freeargv (argv); |
2f61ca93 JB |
1948 | if (argv != NULL && argv[0] != NULL && argv[1] != NULL) |
1949 | error (_("Incorrect usage, too many arguments in command")); | |
1950 | ||
1951 | if (argv != NULL && argv[0] != NULL) | |
1952 | from = argv[0]; | |
1953 | ||
1954 | /* If the user asked for all the rules to be deleted, ask him | |
1955 | to confirm and give him a chance to abort before the action | |
1956 | is performed. */ | |
1957 | ||
1958 | if (from == NULL | |
1959 | && !query (_("Delete all source path substitution rules? "))) | |
1960 | error (_("Canceled")); | |
1961 | ||
1962 | /* Delete the rule matching the argument. No argument means that | |
1963 | all rules should be deleted. */ | |
1964 | ||
1965 | while (rule != NULL) | |
1966 | { | |
1967 | struct substitute_path_rule *next = rule->next; | |
1968 | ||
1969 | if (from == NULL || FILENAME_CMP (from, rule->from) == 0) | |
1970 | { | |
1971 | delete_substitute_path_rule (rule); | |
1972 | rule_found = 1; | |
1973 | } | |
1974 | ||
1975 | rule = next; | |
1976 | } | |
1977 | ||
1978 | /* If the user asked for a specific rule to be deleted but | |
1979 | we could not find it, then report an error. */ | |
1980 | ||
1981 | if (from != NULL && !rule_found) | |
1982 | error (_("No substitution rule defined for `%s'"), from); | |
c4e86dd4 DJ |
1983 | |
1984 | forget_cached_source_info (); | |
5b3fca71 TT |
1985 | |
1986 | do_cleanups (cleanup); | |
2f61ca93 JB |
1987 | } |
1988 | ||
1989 | /* Add a new source path substitution rule. */ | |
1990 | ||
1991 | static void | |
1992 | set_substitute_path_command (char *args, int from_tty) | |
1993 | { | |
2f61ca93 JB |
1994 | char **argv; |
1995 | struct substitute_path_rule *rule; | |
5b3fca71 | 1996 | struct cleanup *cleanup; |
2f61ca93 | 1997 | |
d1a41061 | 1998 | argv = gdb_buildargv (args); |
5b3fca71 | 1999 | cleanup = make_cleanup_freeargv (argv); |
2f61ca93 JB |
2000 | |
2001 | if (argv == NULL || argv[0] == NULL || argv [1] == NULL) | |
2002 | error (_("Incorrect usage, too few arguments in command")); | |
2003 | ||
2004 | if (argv[2] != NULL) | |
2005 | error (_("Incorrect usage, too many arguments in command")); | |
2006 | ||
2007 | if (*(argv[0]) == '\0') | |
2008 | error (_("First argument must be at least one character long")); | |
2009 | ||
2010 | /* Strip any trailing directory separator character in either FROM | |
2011 | or TO. The substitution rule already implicitly contains them. */ | |
2012 | strip_trailing_directory_separator (argv[0]); | |
2013 | strip_trailing_directory_separator (argv[1]); | |
2014 | ||
2015 | /* If a rule with the same "from" was previously defined, then | |
2016 | delete it. This new rule replaces it. */ | |
2017 | ||
2018 | rule = find_substitute_path_rule (argv[0]); | |
2019 | if (rule != NULL) | |
2020 | delete_substitute_path_rule (rule); | |
2021 | ||
2022 | /* Insert the new substitution rule. */ | |
2023 | ||
2024 | add_substitute_path_rule (argv[0], argv[1]); | |
c4e86dd4 | 2025 | forget_cached_source_info (); |
5b3fca71 TT |
2026 | |
2027 | do_cleanups (cleanup); | |
2f61ca93 JB |
2028 | } |
2029 | ||
c906108c SS |
2030 | \f |
2031 | void | |
fba45db2 | 2032 | _initialize_source (void) |
c906108c SS |
2033 | { |
2034 | struct cmd_list_element *c; | |
433759f7 | 2035 | |
c906108c SS |
2036 | current_source_symtab = 0; |
2037 | init_source_path (); | |
2038 | ||
2039 | /* The intention is to use POSIX Basic Regular Expressions. | |
2040 | Always use the GNU regex routine for consistency across all hosts. | |
2041 | Our current GNU regex.c does not have all the POSIX features, so this is | |
2042 | just an approximation. */ | |
2043 | re_set_syntax (RE_SYNTAX_GREP); | |
2044 | ||
1a966eab AC |
2045 | c = add_cmd ("directory", class_files, directory_command, _("\ |
2046 | Add directory DIR to beginning of search path for source files.\n\ | |
c906108c SS |
2047 | Forget cached info on source file locations and line positions.\n\ |
2048 | DIR can also be $cwd for the current working directory, or $cdir for the\n\ | |
2049 | directory in which the source file was compiled into object code.\n\ | |
1a966eab | 2050 | With no argument, reset the search path to $cdir:$cwd, the default."), |
c906108c SS |
2051 | &cmdlist); |
2052 | ||
2053 | if (dbx_commands) | |
c5aa993b | 2054 | add_com_alias ("use", "directory", class_files, 0); |
c906108c | 2055 | |
5ba2abeb | 2056 | set_cmd_completer (c, filename_completer); |
c906108c | 2057 | |
99e7ae30 DE |
2058 | add_setshow_optional_filename_cmd ("directories", |
2059 | class_files, | |
2060 | &source_path, | |
2061 | _("\ | |
2062 | Set the search path for finding source files."), | |
2063 | _("\ | |
2064 | Show the search path for finding source files."), | |
2065 | _("\ | |
c906108c | 2066 | $cwd in the path means the current working directory.\n\ |
99e7ae30 DE |
2067 | $cdir in the path means the compilation directory of the source file.\n\ |
2068 | GDB ensures the search path always ends with $cdir:$cwd by\n\ | |
2069 | appending these directories if necessary.\n\ | |
2070 | Setting the value to an empty string sets it to $cdir:$cwd, the default."), | |
2071 | set_directories_command, | |
2072 | show_directories_command, | |
2073 | &setlist, &showlist); | |
c906108c | 2074 | |
c906108c | 2075 | add_info ("source", source_info, |
1bedd215 | 2076 | _("Information about the current source file.")); |
c906108c | 2077 | |
1bedd215 AC |
2078 | add_info ("line", line_info, _("\ |
2079 | Core addresses of the code for a source line.\n\ | |
c906108c SS |
2080 | Line can be specified as\n\ |
2081 | LINENUM, to list around that line in current file,\n\ | |
2082 | FILE:LINENUM, to list around that line in that file,\n\ | |
2083 | FUNCTION, to list around beginning of that function,\n\ | |
2084 | FILE:FUNCTION, to distinguish among like-named static functions.\n\ | |
c906108c SS |
2085 | Default is to describe the last source line that was listed.\n\n\ |
2086 | This sets the default address for \"x\" to the line's first instruction\n\ | |
2087 | so that \"x/i\" suffices to start examining the machine code.\n\ | |
1bedd215 | 2088 | The address is also stored as the value of \"$_\".")); |
c906108c | 2089 | |
1bedd215 AC |
2090 | add_com ("forward-search", class_files, forward_search_command, _("\ |
2091 | Search for regular expression (see regex(3)) from last line listed.\n\ | |
2092 | The matching line number is also stored as the value of \"$_\".")); | |
c906108c | 2093 | add_com_alias ("search", "forward-search", class_files, 0); |
1e96de83 | 2094 | add_com_alias ("fo", "forward-search", class_files, 1); |
c906108c | 2095 | |
1bedd215 AC |
2096 | add_com ("reverse-search", class_files, reverse_search_command, _("\ |
2097 | Search backward for regular expression (see regex(3)) from last line listed.\n\ | |
2098 | The matching line number is also stored as the value of \"$_\".")); | |
dd304d53 | 2099 | add_com_alias ("rev", "reverse-search", class_files, 1); |
c906108c | 2100 | |
7f7cc265 | 2101 | add_setshow_integer_cmd ("listsize", class_support, &lines_to_list, _("\ |
35096d9d | 2102 | Set number of source lines gdb will list by default."), _("\ |
f81d1120 PA |
2103 | Show number of source lines gdb will list by default."), _("\ |
2104 | Use this to choose how many source lines the \"list\" displays (unless\n\ | |
2105 | the \"list\" argument explicitly specifies some other number).\n\ | |
2106 | A value of \"unlimited\", or zero, means there's no limit."), | |
7f7cc265 PA |
2107 | NULL, |
2108 | show_lines_to_list, | |
2109 | &setlist, &showlist); | |
2f61ca93 JB |
2110 | |
2111 | add_cmd ("substitute-path", class_files, set_substitute_path_command, | |
2112 | _("\ | |
7ef2b397 JB |
2113 | Usage: set substitute-path FROM TO\n\ |
2114 | Add a substitution rule replacing FROM into TO in source file names.\n\ | |
2115 | If a substitution rule was previously set for FROM, the old rule\n\ | |
2116 | is replaced by the new one."), | |
2117 | &setlist); | |
2f61ca93 JB |
2118 | |
2119 | add_cmd ("substitute-path", class_files, unset_substitute_path_command, | |
2120 | _("\ | |
7ef2b397 JB |
2121 | Usage: unset substitute-path [FROM]\n\ |
2122 | Delete the rule for substituting FROM in source file names. If FROM\n\ | |
2123 | is not specified, all substituting rules are deleted.\n\ | |
2124 | If the debugger cannot find a rule for FROM, it will display a warning."), | |
2f61ca93 JB |
2125 | &unsetlist); |
2126 | ||
2127 | add_cmd ("substitute-path", class_files, show_substitute_path_command, | |
7ef2b397 JB |
2128 | _("\ |
2129 | Usage: show substitute-path [FROM]\n\ | |
2130 | Print the rule for substituting FROM in source file names. If FROM\n\ | |
2131 | is not specified, print all substitution rules."), | |
2f61ca93 | 2132 | &showlist); |
1b56eb55 JK |
2133 | |
2134 | add_setshow_enum_cmd ("filename-display", class_files, | |
2135 | filename_display_kind_names, | |
2136 | &filename_display_string, _("\ | |
2137 | Set how to display filenames."), _("\ | |
2138 | Show how to display filenames."), _("\ | |
2139 | filename-display can be:\n\ | |
2140 | basename - display only basename of a filename\n\ | |
2141 | relative - display a filename relative to the compilation directory\n\ | |
2142 | absolute - display an absolute filename\n\ | |
2143 | By default, relative filenames are displayed."), | |
2144 | NULL, | |
2145 | show_filename_display_string, | |
2146 | &setlist, &showlist); | |
2147 | ||
c906108c | 2148 | } |