Commit | Line | Data |
---|---|---|
c906108c | 1 | /* List lines of source files for GDB, the GNU debugger. |
b6ba6518 KB |
2 | Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
3 | 1996, 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc. | |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b JM |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, | |
20 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
21 | |
22 | #include "defs.h" | |
23 | #include "symtab.h" | |
24 | #include "expression.h" | |
25 | #include "language.h" | |
26 | #include "command.h" | |
c2c6d25f | 27 | #include "source.h" |
c906108c SS |
28 | #include "gdbcmd.h" |
29 | #include "frame.h" | |
30 | #include "value.h" | |
31 | ||
32 | #include <sys/types.h> | |
33 | #include "gdb_string.h" | |
34 | #include "gdb_stat.h" | |
35 | #include <fcntl.h> | |
c906108c | 36 | #include "gdbcore.h" |
88987551 | 37 | #include "gdb_regex.h" |
c906108c SS |
38 | #include "symfile.h" |
39 | #include "objfiles.h" | |
40 | #include "annotate.h" | |
41 | #include "gdbtypes.h" | |
c5f0f3d0 | 42 | #include "linespec.h" |
fe4e3eb8 | 43 | #include "filenames.h" /* for DOSish file names */ |
d75b5104 | 44 | #include "completer.h" |
8b93c638 JM |
45 | #ifdef UI_OUT |
46 | #include "ui-out.h" | |
47 | #endif | |
c906108c SS |
48 | |
49 | #ifdef CRLF_SOURCE_FILES | |
50 | ||
51 | /* Define CRLF_SOURCE_FILES in an xm-*.h file if source files on the | |
52 | host use \r\n rather than just \n. Defining CRLF_SOURCE_FILES is | |
53 | much faster than defining LSEEK_NOT_LINEAR. */ | |
54 | ||
55 | #ifndef O_BINARY | |
56 | #define O_BINARY 0 | |
57 | #endif | |
58 | ||
59 | #define OPEN_MODE (O_RDONLY | O_BINARY) | |
60 | #define FDOPEN_MODE FOPEN_RB | |
61 | ||
62 | #else /* ! defined (CRLF_SOURCE_FILES) */ | |
63 | ||
64 | #define OPEN_MODE O_RDONLY | |
65 | #define FDOPEN_MODE FOPEN_RT | |
66 | ||
67 | #endif /* ! defined (CRLF_SOURCE_FILES) */ | |
68 | ||
c906108c SS |
69 | /* Prototypes for exported functions. */ |
70 | ||
a14ed312 | 71 | void _initialize_source (void); |
c906108c SS |
72 | |
73 | /* Prototypes for local functions. */ | |
74 | ||
a14ed312 | 75 | static int get_filename_and_charpos (struct symtab *, char **); |
c906108c | 76 | |
a14ed312 | 77 | static void reverse_search_command (char *, int); |
c906108c | 78 | |
a14ed312 | 79 | static void forward_search_command (char *, int); |
c906108c | 80 | |
a14ed312 | 81 | static void line_info (char *, int); |
c906108c | 82 | |
a14ed312 | 83 | static void list_command (char *, int); |
c906108c | 84 | |
a14ed312 | 85 | static void ambiguous_line_spec (struct symtabs_and_lines *); |
c906108c | 86 | |
a14ed312 | 87 | static void source_info (char *, int); |
c906108c | 88 | |
a14ed312 | 89 | static void show_directories (char *, int); |
c906108c SS |
90 | |
91 | /* Path of directories to search for source files. | |
92 | Same format as the PATH environment variable's value. */ | |
93 | ||
94 | char *source_path; | |
95 | ||
96 | /* Symtab of default file for listing lines of. */ | |
97 | ||
98 | struct symtab *current_source_symtab; | |
99 | ||
100 | /* Default next line to list. */ | |
101 | ||
102 | int current_source_line; | |
103 | ||
104 | /* Default number of lines to print with commands like "list". | |
105 | This is based on guessing how many long (i.e. more than chars_per_line | |
106 | characters) lines there will be. To be completely correct, "list" | |
107 | and friends should be rewritten to count characters and see where | |
108 | things are wrapping, but that would be a fair amount of work. */ | |
109 | ||
110 | int lines_to_list = 10; | |
111 | ||
112 | /* Line number of last line printed. Default for various commands. | |
113 | current_source_line is usually, but not always, the same as this. */ | |
114 | ||
115 | static int last_line_listed; | |
116 | ||
117 | /* First line number listed by last listing command. */ | |
118 | ||
119 | static int first_line_listed; | |
120 | ||
121 | /* Saves the name of the last source file visited and a possible error code. | |
122 | Used to prevent repeating annoying "No such file or directories" msgs */ | |
123 | ||
124 | static struct symtab *last_source_visited = NULL; | |
125 | static int last_source_error = 0; | |
c906108c | 126 | \f |
c5aa993b | 127 | |
c906108c SS |
128 | /* Set the source file default for the "list" command to be S. |
129 | ||
130 | If S is NULL, and we don't have a default, find one. This | |
131 | should only be called when the user actually tries to use the | |
132 | default, since we produce an error if we can't find a reasonable | |
133 | default. Also, since this can cause symbols to be read, doing it | |
134 | before we need to would make things slower than necessary. */ | |
135 | ||
136 | void | |
fba45db2 | 137 | select_source_symtab (register struct symtab *s) |
c906108c SS |
138 | { |
139 | struct symtabs_and_lines sals; | |
140 | struct symtab_and_line sal; | |
141 | struct partial_symtab *ps; | |
142 | struct partial_symtab *cs_pst = 0; | |
143 | struct objfile *ofp; | |
c5aa993b | 144 | |
c906108c SS |
145 | if (s) |
146 | { | |
147 | current_source_symtab = s; | |
148 | current_source_line = 1; | |
149 | return; | |
150 | } | |
151 | ||
152 | if (current_source_symtab) | |
153 | return; | |
154 | ||
155 | /* Make the default place to list be the function `main' | |
156 | if one exists. */ | |
51cc5b07 | 157 | if (lookup_symbol (main_name (), 0, VAR_NAMESPACE, 0, NULL)) |
c906108c | 158 | { |
51cc5b07 | 159 | sals = decode_line_spec (main_name (), 1); |
c906108c | 160 | sal = sals.sals[0]; |
b8c9b27d | 161 | xfree (sals.sals); |
c906108c SS |
162 | current_source_symtab = sal.symtab; |
163 | current_source_line = max (sal.line - (lines_to_list - 1), 1); | |
164 | if (current_source_symtab) | |
c5aa993b | 165 | return; |
c906108c | 166 | } |
c5aa993b | 167 | |
c906108c SS |
168 | /* All right; find the last file in the symtab list (ignoring .h's). */ |
169 | ||
170 | current_source_line = 1; | |
171 | ||
c5aa993b | 172 | for (ofp = object_files; ofp != NULL; ofp = ofp->next) |
c906108c | 173 | { |
c5aa993b | 174 | for (s = ofp->symtabs; s; s = s->next) |
c906108c | 175 | { |
c5aa993b | 176 | char *name = s->filename; |
c906108c | 177 | int len = strlen (name); |
c5aa993b | 178 | if (!(len > 2 && (STREQ (&name[len - 2], ".h")))) |
c906108c SS |
179 | { |
180 | current_source_symtab = s; | |
181 | } | |
182 | } | |
183 | } | |
184 | if (current_source_symtab) | |
185 | return; | |
186 | ||
187 | /* Howabout the partial symbol tables? */ | |
188 | ||
c5aa993b | 189 | for (ofp = object_files; ofp != NULL; ofp = ofp->next) |
c906108c | 190 | { |
c5aa993b | 191 | for (ps = ofp->psymtabs; ps != NULL; ps = ps->next) |
c906108c | 192 | { |
c5aa993b | 193 | char *name = ps->filename; |
c906108c | 194 | int len = strlen (name); |
c5aa993b | 195 | if (!(len > 2 && (STREQ (&name[len - 2], ".h")))) |
c906108c SS |
196 | { |
197 | cs_pst = ps; | |
198 | } | |
199 | } | |
200 | } | |
201 | if (cs_pst) | |
202 | { | |
c5aa993b | 203 | if (cs_pst->readin) |
c906108c | 204 | { |
8e65ff28 AC |
205 | internal_error (__FILE__, __LINE__, |
206 | "select_source_symtab: " | |
207 | "readin pst found and no symtabs."); | |
c906108c SS |
208 | } |
209 | else | |
210 | { | |
211 | current_source_symtab = PSYMTAB_TO_SYMTAB (cs_pst); | |
212 | } | |
213 | } | |
214 | if (current_source_symtab) | |
215 | return; | |
216 | ||
217 | error ("Can't find a default source file"); | |
218 | } | |
219 | \f | |
220 | static void | |
fba45db2 | 221 | show_directories (char *ignore, int from_tty) |
c906108c SS |
222 | { |
223 | puts_filtered ("Source directories searched: "); | |
224 | puts_filtered (source_path); | |
225 | puts_filtered ("\n"); | |
226 | } | |
227 | ||
228 | /* Forget what we learned about line positions in source files, and | |
229 | which directories contain them; must check again now since files | |
230 | may be found in a different directory now. */ | |
231 | ||
232 | void | |
fba45db2 | 233 | forget_cached_source_info (void) |
c906108c SS |
234 | { |
235 | register struct symtab *s; | |
236 | register struct objfile *objfile; | |
237 | ||
c5aa993b | 238 | for (objfile = object_files; objfile != NULL; objfile = objfile->next) |
c906108c | 239 | { |
c5aa993b | 240 | for (s = objfile->symtabs; s != NULL; s = s->next) |
c906108c | 241 | { |
c5aa993b | 242 | if (s->line_charpos != NULL) |
c906108c | 243 | { |
c5aa993b JM |
244 | mfree (objfile->md, s->line_charpos); |
245 | s->line_charpos = NULL; | |
c906108c | 246 | } |
c5aa993b | 247 | if (s->fullname != NULL) |
c906108c | 248 | { |
c5aa993b JM |
249 | mfree (objfile->md, s->fullname); |
250 | s->fullname = NULL; | |
c906108c SS |
251 | } |
252 | } | |
253 | } | |
254 | } | |
255 | ||
256 | void | |
fba45db2 | 257 | init_source_path (void) |
c906108c SS |
258 | { |
259 | char buf[20]; | |
260 | ||
261 | sprintf (buf, "$cdir%c$cwd", DIRNAME_SEPARATOR); | |
4fcf66da | 262 | source_path = xstrdup (buf); |
c906108c SS |
263 | forget_cached_source_info (); |
264 | } | |
265 | ||
266 | /* Add zero or more directories to the front of the source path. */ | |
c5aa993b | 267 | |
c906108c | 268 | void |
fba45db2 | 269 | directory_command (char *dirname, int from_tty) |
c906108c SS |
270 | { |
271 | dont_repeat (); | |
272 | /* FIXME, this goes to "delete dir"... */ | |
273 | if (dirname == 0) | |
274 | { | |
43ff13b4 | 275 | if (from_tty && query ("Reinitialize source path to empty? ")) |
c906108c | 276 | { |
b8c9b27d | 277 | xfree (source_path); |
c906108c SS |
278 | init_source_path (); |
279 | } | |
280 | } | |
281 | else | |
282 | { | |
283 | mod_path (dirname, &source_path); | |
284 | last_source_visited = NULL; | |
285 | } | |
286 | if (from_tty) | |
c5aa993b | 287 | show_directories ((char *) 0, from_tty); |
c906108c SS |
288 | forget_cached_source_info (); |
289 | } | |
290 | ||
291 | /* Add zero or more directories to the front of an arbitrary path. */ | |
292 | ||
293 | void | |
fba45db2 | 294 | mod_path (char *dirname, char **which_path) |
c906108c SS |
295 | { |
296 | char *old = *which_path; | |
297 | int prefix = 0; | |
298 | ||
299 | if (dirname == 0) | |
300 | return; | |
301 | ||
4fcf66da | 302 | dirname = xstrdup (dirname); |
b8c9b27d | 303 | make_cleanup (xfree, dirname); |
c906108c SS |
304 | |
305 | do | |
306 | { | |
307 | char *name = dirname; | |
308 | register char *p; | |
309 | struct stat st; | |
310 | ||
311 | { | |
312 | char *separator = strchr (name, DIRNAME_SEPARATOR); | |
313 | char *space = strchr (name, ' '); | |
314 | char *tab = strchr (name, '\t'); | |
315 | ||
c5aa993b | 316 | if (separator == 0 && space == 0 && tab == 0) |
c906108c SS |
317 | p = dirname = name + strlen (name); |
318 | else | |
319 | { | |
320 | p = 0; | |
321 | if (separator != 0 && (p == 0 || separator < p)) | |
322 | p = separator; | |
323 | if (space != 0 && (p == 0 || space < p)) | |
324 | p = space; | |
325 | if (tab != 0 && (p == 0 || tab < p)) | |
326 | p = tab; | |
327 | dirname = p + 1; | |
328 | while (*dirname == DIRNAME_SEPARATOR | |
329 | || *dirname == ' ' | |
330 | || *dirname == '\t') | |
331 | ++dirname; | |
332 | } | |
333 | } | |
334 | ||
fe4e3eb8 | 335 | if (!(IS_DIR_SEPARATOR (*name) && p <= name + 1) /* "/" */ |
c3690141 | 336 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
7be570e7 | 337 | /* On MS-DOS and MS-Windows, h:\ is different from h: */ |
fe4e3eb8 | 338 | && !(p == name + 3 && name[1] == ':') /* "d:/" */ |
7be570e7 | 339 | #endif |
fe4e3eb8 | 340 | && IS_DIR_SEPARATOR (p[-1])) |
c906108c SS |
341 | /* Sigh. "foo/" => "foo" */ |
342 | --p; | |
c906108c SS |
343 | *p = '\0'; |
344 | ||
7be570e7 | 345 | while (p > name && p[-1] == '.') |
c906108c SS |
346 | { |
347 | if (p - name == 1) | |
348 | { | |
349 | /* "." => getwd (). */ | |
350 | name = current_directory; | |
351 | goto append; | |
352 | } | |
fe4e3eb8 | 353 | else if (p > name + 1 && IS_DIR_SEPARATOR (p[-2])) |
c906108c SS |
354 | { |
355 | if (p - name == 2) | |
356 | { | |
357 | /* "/." => "/". */ | |
358 | *--p = '\0'; | |
359 | goto append; | |
360 | } | |
361 | else | |
362 | { | |
363 | /* "...foo/." => "...foo". */ | |
364 | p -= 2; | |
365 | *p = '\0'; | |
366 | continue; | |
367 | } | |
368 | } | |
369 | else | |
370 | break; | |
371 | } | |
372 | ||
373 | if (name[0] == '~') | |
374 | name = tilde_expand (name); | |
c3690141 | 375 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
fe4e3eb8 | 376 | else if (IS_ABSOLUTE_PATH (name) && p == name + 2) /* "d:" => "d:." */ |
7be570e7 JM |
377 | name = concat (name, ".", NULL); |
378 | #endif | |
fe4e3eb8 | 379 | else if (!IS_ABSOLUTE_PATH (name) && name[0] != '$') |
c5aa993b | 380 | name = concat (current_directory, SLASH_STRING, name, NULL); |
c906108c SS |
381 | else |
382 | name = savestring (name, p - name); | |
b8c9b27d | 383 | make_cleanup (xfree, name); |
c906108c SS |
384 | |
385 | /* Unless it's a variable, check existence. */ | |
c5aa993b JM |
386 | if (name[0] != '$') |
387 | { | |
388 | /* These are warnings, not errors, since we don't want a | |
389 | non-existent directory in a .gdbinit file to stop processing | |
390 | of the .gdbinit file. | |
391 | ||
392 | Whether they get added to the path is more debatable. Current | |
393 | answer is yes, in case the user wants to go make the directory | |
394 | or whatever. If the directory continues to not exist/not be | |
395 | a directory/etc, then having them in the path should be | |
396 | harmless. */ | |
397 | if (stat (name, &st) < 0) | |
398 | { | |
399 | int save_errno = errno; | |
400 | fprintf_unfiltered (gdb_stderr, "Warning: "); | |
401 | print_sys_errmsg (name, save_errno); | |
402 | } | |
403 | else if ((st.st_mode & S_IFMT) != S_IFDIR) | |
404 | warning ("%s is not a directory.", name); | |
405 | } | |
c906108c SS |
406 | |
407 | append: | |
408 | { | |
409 | register unsigned int len = strlen (name); | |
410 | ||
411 | p = *which_path; | |
412 | while (1) | |
413 | { | |
7be570e7 JM |
414 | /* FIXME: strncmp loses in interesting ways on MS-DOS and |
415 | MS-Windows because of case-insensitivity and two different | |
416 | but functionally identical slash characters. We need a | |
417 | special filesystem-dependent file-name comparison function. | |
418 | ||
419 | Actually, even on Unix I would use realpath() or its work- | |
420 | alike before comparing. Then all the code above which | |
421 | removes excess slashes and dots could simply go away. */ | |
c906108c SS |
422 | if (!strncmp (p, name, len) |
423 | && (p[len] == '\0' || p[len] == DIRNAME_SEPARATOR)) | |
424 | { | |
425 | /* Found it in the search path, remove old copy */ | |
426 | if (p > *which_path) | |
c5aa993b | 427 | p--; /* Back over leading separator */ |
c906108c SS |
428 | if (prefix > p - *which_path) |
429 | goto skip_dup; /* Same dir twice in one cmd */ | |
c5aa993b | 430 | strcpy (p, &p[len + 1]); /* Copy from next \0 or : */ |
c906108c SS |
431 | } |
432 | p = strchr (p, DIRNAME_SEPARATOR); | |
433 | if (p != 0) | |
434 | ++p; | |
435 | else | |
436 | break; | |
437 | } | |
438 | if (p == 0) | |
439 | { | |
440 | char tinybuf[2]; | |
441 | ||
442 | tinybuf[0] = DIRNAME_SEPARATOR; | |
443 | tinybuf[1] = '\0'; | |
444 | ||
c5aa993b | 445 | /* If we have already tacked on a name(s) in this command, be sure they stay on the front as we tack on some more. */ |
c906108c SS |
446 | if (prefix) |
447 | { | |
448 | char *temp, c; | |
449 | ||
450 | c = old[prefix]; | |
451 | old[prefix] = '\0'; | |
452 | temp = concat (old, tinybuf, name, NULL); | |
453 | old[prefix] = c; | |
454 | *which_path = concat (temp, "", &old[prefix], NULL); | |
455 | prefix = strlen (temp); | |
b8c9b27d | 456 | xfree (temp); |
c906108c SS |
457 | } |
458 | else | |
459 | { | |
460 | *which_path = concat (name, (old[0] ? tinybuf : old), old, NULL); | |
461 | prefix = strlen (name); | |
462 | } | |
b8c9b27d | 463 | xfree (old); |
c906108c SS |
464 | old = *which_path; |
465 | } | |
466 | } | |
c5aa993b JM |
467 | skip_dup:; |
468 | } | |
469 | while (*dirname != '\0'); | |
c906108c SS |
470 | } |
471 | ||
472 | ||
473 | static void | |
fba45db2 | 474 | source_info (char *ignore, int from_tty) |
c906108c SS |
475 | { |
476 | register struct symtab *s = current_source_symtab; | |
477 | ||
478 | if (!s) | |
479 | { | |
c5aa993b | 480 | printf_filtered ("No current source file.\n"); |
c906108c SS |
481 | return; |
482 | } | |
483 | printf_filtered ("Current source file is %s\n", s->filename); | |
484 | if (s->dirname) | |
485 | printf_filtered ("Compilation directory is %s\n", s->dirname); | |
486 | if (s->fullname) | |
487 | printf_filtered ("Located in %s\n", s->fullname); | |
488 | if (s->nlines) | |
489 | printf_filtered ("Contains %d line%s.\n", s->nlines, | |
490 | s->nlines == 1 ? "" : "s"); | |
491 | ||
492 | printf_filtered ("Source language is %s.\n", language_str (s->language)); | |
493 | printf_filtered ("Compiled with %s debugging format.\n", s->debugformat); | |
494 | } | |
c5aa993b | 495 | \f |
c906108c SS |
496 | |
497 | ||
c906108c SS |
498 | /* Open a file named STRING, searching path PATH (dir names sep by some char) |
499 | using mode MODE and protection bits PROT in the calls to open. | |
500 | ||
501 | If TRY_CWD_FIRST, try to open ./STRING before searching PATH. | |
502 | (ie pretend the first element of PATH is "."). This also indicates | |
503 | that a slash in STRING disables searching of the path (this is | |
504 | so that "exec-file ./foo" or "symbol-file ./foo" insures that you | |
505 | get that particular version of foo or an error message). | |
506 | ||
e7a8479f | 507 | If FILENAME_OPENED is non-null, set it to a newly allocated string naming |
c906108c SS |
508 | the actual file opened (this string will always start with a "/". We |
509 | have to take special pains to avoid doubling the "/" between the directory | |
510 | and the file, sigh! Emacs gets confuzzed by this when we print the | |
511 | source file name!!! | |
512 | ||
513 | If a file is found, return the descriptor. | |
514 | Otherwise, return -1, with errno set for the last name we tried to open. */ | |
515 | ||
516 | /* >>>> This should only allow files of certain types, | |
c5aa993b | 517 | >>>> eg executable, non-directory */ |
c906108c | 518 | int |
1f8cc6db AC |
519 | openp (const char *path, int try_cwd_first, const char *string, |
520 | int mode, int prot, | |
fba45db2 | 521 | char **filename_opened) |
c906108c SS |
522 | { |
523 | register int fd; | |
524 | register char *filename; | |
1f8cc6db AC |
525 | const char *p; |
526 | const char *p1; | |
c906108c SS |
527 | register int len; |
528 | int alloclen; | |
529 | ||
530 | if (!path) | |
531 | path = "."; | |
532 | ||
608506ed | 533 | #if defined(_WIN32) || defined(__CYGWIN__) |
c906108c SS |
534 | mode |= O_BINARY; |
535 | #endif | |
536 | ||
fe4e3eb8 | 537 | if (try_cwd_first || IS_ABSOLUTE_PATH (string)) |
c906108c SS |
538 | { |
539 | int i; | |
1f8cc6db AC |
540 | filename = alloca (strlen (string) + 1); |
541 | strcpy (filename, string); | |
c906108c SS |
542 | fd = open (filename, mode, prot); |
543 | if (fd >= 0) | |
544 | goto done; | |
545 | for (i = 0; string[i]; i++) | |
fe4e3eb8 | 546 | if (IS_DIR_SEPARATOR (string[i])) |
c906108c SS |
547 | goto done; |
548 | } | |
549 | ||
550 | /* ./foo => foo */ | |
fe4e3eb8 | 551 | while (string[0] == '.' && IS_DIR_SEPARATOR (string[1])) |
c906108c SS |
552 | string += 2; |
553 | ||
554 | alloclen = strlen (path) + strlen (string) + 2; | |
1f8cc6db | 555 | filename = alloca (alloclen); |
c906108c SS |
556 | fd = -1; |
557 | for (p = path; p; p = p1 ? p1 + 1 : 0) | |
558 | { | |
1f8cc6db | 559 | p1 = strchr (p, DIRNAME_SEPARATOR); |
c906108c SS |
560 | if (p1) |
561 | len = p1 - p; | |
562 | else | |
563 | len = strlen (p); | |
564 | ||
565 | if (len == 4 && p[0] == '$' && p[1] == 'c' | |
c5aa993b JM |
566 | && p[2] == 'w' && p[3] == 'd') |
567 | { | |
568 | /* Name is $cwd -- insert current directory name instead. */ | |
569 | int newlen; | |
570 | ||
571 | /* First, realloc the filename buffer if too short. */ | |
572 | len = strlen (current_directory); | |
573 | newlen = len + strlen (string) + 2; | |
574 | if (newlen > alloclen) | |
575 | { | |
576 | alloclen = newlen; | |
1f8cc6db | 577 | filename = alloca (alloclen); |
c5aa993b JM |
578 | } |
579 | strcpy (filename, current_directory); | |
580 | } | |
581 | else | |
582 | { | |
583 | /* Normal file name in path -- just use it. */ | |
584 | strncpy (filename, p, len); | |
585 | filename[len] = 0; | |
c906108c | 586 | } |
c906108c SS |
587 | |
588 | /* Remove trailing slashes */ | |
fe4e3eb8 | 589 | while (len > 0 && IS_DIR_SEPARATOR (filename[len - 1])) |
c906108c SS |
590 | filename[--len] = 0; |
591 | ||
c5aa993b | 592 | strcat (filename + len, SLASH_STRING); |
c906108c SS |
593 | strcat (filename, string); |
594 | ||
595 | fd = open (filename, mode); | |
c5aa993b JM |
596 | if (fd >= 0) |
597 | break; | |
c906108c SS |
598 | } |
599 | ||
c5aa993b | 600 | done: |
c906108c SS |
601 | if (filename_opened) |
602 | { | |
603 | if (fd < 0) | |
1f8cc6db | 604 | *filename_opened = NULL; |
fe4e3eb8 | 605 | else if (IS_ABSOLUTE_PATH (filename)) |
c906108c SS |
606 | *filename_opened = savestring (filename, strlen (filename)); |
607 | else | |
608 | { | |
609 | /* Beware the // my son, the Emacs barfs, the botch that catch... */ | |
c5aa993b JM |
610 | |
611 | *filename_opened = concat (current_directory, | |
fe4e3eb8 | 612 | IS_DIR_SEPARATOR (current_directory[strlen (current_directory) - 1]) |
c5aa993b | 613 | ? "" : SLASH_STRING, |
c906108c | 614 | filename, NULL); |
c5aa993b | 615 | } |
c906108c | 616 | } |
d036b4d9 AC |
617 | /* OBSOLETE #ifdef MPW */ |
618 | /* OBSOLETE This is a debugging hack that can go away when all combinations */ | |
619 | /* OBSOLETE of Mac and Unix names are handled reasonably. */ | |
620 | /* OBSOLETE { */ | |
621 | /* OBSOLETE extern int debug_openp; */ | |
622 | /* OBSOLETE */ | |
623 | /* OBSOLETE if (debug_openp) */ | |
624 | /* OBSOLETE { */ | |
625 | /* OBSOLETE printf ("openp on %s, path %s mode %d prot %d\n returned %d", */ | |
626 | /* OBSOLETE string, path, mode, prot, fd); */ | |
627 | /* OBSOLETE if (*filename_opened) */ | |
628 | /* OBSOLETE printf (" (filename is %s)", *filename_opened); */ | |
629 | /* OBSOLETE printf ("\n"); */ | |
630 | /* OBSOLETE } */ | |
631 | /* OBSOLETE } */ | |
632 | /* OBSOLETE #endif *//* MPW */ | |
c906108c SS |
633 | |
634 | return fd; | |
635 | } | |
636 | ||
c5aa993b | 637 | |
c906108c SS |
638 | /* This is essentially a convenience, for clients that want the behaviour |
639 | of openp, using source_path, but that really don't want the file to be | |
640 | opened but want instead just to know what the full pathname is (as | |
641 | qualified against source_path). | |
642 | ||
643 | The current working directory is searched first. | |
644 | ||
645 | If the file was found, this function returns 1, and FULL_PATHNAME is | |
646 | set to the fully-qualified pathname. | |
647 | ||
648 | Else, this functions returns 0, and FULL_PATHNAME is set to NULL. | |
c5aa993b | 649 | */ |
c906108c | 650 | int |
fba45db2 | 651 | source_full_path_of (char *filename, char **full_pathname) |
c906108c | 652 | { |
c5aa993b | 653 | int fd; |
c906108c SS |
654 | |
655 | fd = openp (source_path, 1, filename, O_RDONLY, 0, full_pathname); | |
656 | if (fd < 0) | |
657 | { | |
658 | *full_pathname = NULL; | |
659 | return 0; | |
660 | } | |
661 | ||
662 | close (fd); | |
663 | return 1; | |
664 | } | |
665 | ||
666 | ||
667 | /* Open a source file given a symtab S. Returns a file descriptor or | |
668 | negative number for error. */ | |
669 | ||
670 | int | |
fba45db2 | 671 | open_source_file (struct symtab *s) |
c906108c SS |
672 | { |
673 | char *path = source_path; | |
31889e00 | 674 | const char *p; |
c906108c SS |
675 | int result; |
676 | char *fullname; | |
677 | ||
678 | /* Quick way out if we already know its full name */ | |
c5aa993b | 679 | if (s->fullname) |
c906108c SS |
680 | { |
681 | result = open (s->fullname, OPEN_MODE); | |
682 | if (result >= 0) | |
c5aa993b | 683 | return result; |
c906108c SS |
684 | /* Didn't work -- free old one, try again. */ |
685 | mfree (s->objfile->md, s->fullname); | |
686 | s->fullname = NULL; | |
687 | } | |
688 | ||
689 | if (s->dirname != NULL) | |
690 | { | |
691 | /* Replace a path entry of $cdir with the compilation directory name */ | |
692 | #define cdir_len 5 | |
693 | /* We cast strstr's result in case an ANSIhole has made it const, | |
c5aa993b JM |
694 | which produces a "required warning" when assigned to a nonconst. */ |
695 | p = (char *) strstr (source_path, "$cdir"); | |
c906108c | 696 | if (p && (p == path || p[-1] == DIRNAME_SEPARATOR) |
c5aa993b | 697 | && (p[cdir_len] == DIRNAME_SEPARATOR || p[cdir_len] == '\0')) |
c906108c SS |
698 | { |
699 | int len; | |
700 | ||
701 | path = (char *) | |
702 | alloca (strlen (source_path) + 1 + strlen (s->dirname) + 1); | |
703 | len = p - source_path; | |
c5aa993b JM |
704 | strncpy (path, source_path, len); /* Before $cdir */ |
705 | strcpy (path + len, s->dirname); /* new stuff */ | |
706 | strcat (path + len, source_path + len + cdir_len); /* After $cdir */ | |
c906108c SS |
707 | } |
708 | } | |
709 | ||
710 | result = openp (path, 0, s->filename, OPEN_MODE, 0, &s->fullname); | |
711 | if (result < 0) | |
712 | { | |
713 | /* Didn't work. Try using just the basename. */ | |
31889e00 | 714 | p = lbasename (s->filename); |
c906108c SS |
715 | if (p != s->filename) |
716 | result = openp (path, 0, p, OPEN_MODE, 0, &s->fullname); | |
717 | } | |
d036b4d9 AC |
718 | /* OBSOLETE #ifdef MPW */ |
719 | /* OBSOLETE if (result < 0) */ | |
720 | /* OBSOLETE { */ | |
721 | /* OBSOLETE *//* Didn't work. Try using just the MPW basename. */ | |
722 | /* OBSOLETE p = (char *) mpw_basename (s->filename); */ | |
723 | /* OBSOLETE if (p != s->filename) */ | |
724 | /* OBSOLETE result = openp (path, 0, p, OPEN_MODE, 0, &s->fullname); */ | |
725 | /* OBSOLETE } */ | |
726 | /* OBSOLETE if (result < 0) */ | |
727 | /* OBSOLETE { */ | |
728 | /* OBSOLETE *//* Didn't work. Try using the mixed Unix/MPW basename. */ | |
729 | /* OBSOLETE p = (char *) mpw_mixed_basename (s->filename); */ | |
730 | /* OBSOLETE if (p != s->filename) */ | |
731 | /* OBSOLETE result = openp (path, 0, p, OPEN_MODE, 0, &s->fullname); */ | |
732 | /* OBSOLETE } */ | |
733 | /* OBSOLETE #endif MPW */ | |
c906108c SS |
734 | |
735 | if (result >= 0) | |
736 | { | |
737 | fullname = s->fullname; | |
738 | s->fullname = mstrsave (s->objfile->md, s->fullname); | |
b8c9b27d | 739 | xfree (fullname); |
c906108c SS |
740 | } |
741 | return result; | |
742 | } | |
743 | ||
744 | /* Return the path to the source file associated with symtab. Returns NULL | |
745 | if no symtab. */ | |
746 | ||
747 | char * | |
fba45db2 | 748 | symtab_to_filename (struct symtab *s) |
c906108c SS |
749 | { |
750 | int fd; | |
751 | ||
752 | if (!s) | |
753 | return NULL; | |
754 | ||
755 | /* If we've seen the file before, just return fullname. */ | |
756 | ||
757 | if (s->fullname) | |
758 | return s->fullname; | |
759 | ||
760 | /* Try opening the file to setup fullname */ | |
761 | ||
762 | fd = open_source_file (s); | |
763 | if (fd < 0) | |
764 | return s->filename; /* File not found. Just use short name */ | |
765 | ||
766 | /* Found the file. Cleanup and return the full name */ | |
767 | ||
768 | close (fd); | |
769 | return s->fullname; | |
770 | } | |
c906108c | 771 | \f |
c5aa993b | 772 | |
c906108c SS |
773 | /* Create and initialize the table S->line_charpos that records |
774 | the positions of the lines in the source file, which is assumed | |
775 | to be open on descriptor DESC. | |
776 | All set S->nlines to the number of such lines. */ | |
777 | ||
778 | void | |
fba45db2 | 779 | find_source_lines (struct symtab *s, int desc) |
c906108c SS |
780 | { |
781 | struct stat st; | |
782 | register char *data, *p, *end; | |
783 | int nlines = 0; | |
784 | int lines_allocated = 1000; | |
785 | int *line_charpos; | |
786 | long mtime = 0; | |
787 | int size; | |
788 | ||
c5aa993b | 789 | line_charpos = (int *) xmmalloc (s->objfile->md, |
c906108c SS |
790 | lines_allocated * sizeof (int)); |
791 | if (fstat (desc, &st) < 0) | |
792 | perror_with_name (s->filename); | |
793 | ||
794 | if (s && s->objfile && s->objfile->obfd) | |
c5aa993b | 795 | mtime = bfd_get_mtime (s->objfile->obfd); |
c906108c | 796 | else if (exec_bfd) |
c5aa993b | 797 | mtime = bfd_get_mtime (exec_bfd); |
c906108c SS |
798 | |
799 | if (mtime && mtime < st.st_mtime) | |
800 | { | |
c5aa993b | 801 | warning ("Source file is more recent than executable.\n"); |
c906108c SS |
802 | } |
803 | ||
804 | #ifdef LSEEK_NOT_LINEAR | |
805 | { | |
806 | char c; | |
807 | ||
808 | /* Have to read it byte by byte to find out where the chars live */ | |
809 | ||
810 | line_charpos[0] = lseek (desc, 0, SEEK_CUR); | |
811 | nlines = 1; | |
c5aa993b | 812 | while (myread (desc, &c, 1) > 0) |
c906108c | 813 | { |
c5aa993b | 814 | if (c == '\n') |
c906108c | 815 | { |
c5aa993b | 816 | if (nlines == lines_allocated) |
c906108c SS |
817 | { |
818 | lines_allocated *= 2; | |
819 | line_charpos = | |
c5aa993b | 820 | (int *) xmrealloc (s->objfile->md, (char *) line_charpos, |
c906108c SS |
821 | sizeof (int) * lines_allocated); |
822 | } | |
823 | line_charpos[nlines++] = lseek (desc, 0, SEEK_CUR); | |
824 | } | |
825 | } | |
826 | } | |
827 | #else /* lseek linear. */ | |
828 | { | |
829 | struct cleanup *old_cleanups; | |
830 | ||
831 | /* st_size might be a large type, but we only support source files whose | |
832 | size fits in an int. */ | |
833 | size = (int) st.st_size; | |
834 | ||
835 | /* Use malloc, not alloca, because this may be pretty large, and we may | |
836 | run into various kinds of limits on stack size. */ | |
837 | data = (char *) xmalloc (size); | |
b8c9b27d | 838 | old_cleanups = make_cleanup (xfree, data); |
c906108c SS |
839 | |
840 | /* Reassign `size' to result of read for systems where \r\n -> \n. */ | |
841 | size = myread (desc, data, size); | |
842 | if (size < 0) | |
843 | perror_with_name (s->filename); | |
844 | end = data + size; | |
845 | p = data; | |
846 | line_charpos[0] = 0; | |
847 | nlines = 1; | |
848 | while (p != end) | |
849 | { | |
850 | if (*p++ == '\n' | |
c5aa993b | 851 | /* A newline at the end does not start a new line. */ |
c906108c SS |
852 | && p != end) |
853 | { | |
854 | if (nlines == lines_allocated) | |
855 | { | |
856 | lines_allocated *= 2; | |
857 | line_charpos = | |
c5aa993b | 858 | (int *) xmrealloc (s->objfile->md, (char *) line_charpos, |
c906108c SS |
859 | sizeof (int) * lines_allocated); |
860 | } | |
861 | line_charpos[nlines++] = p - data; | |
862 | } | |
863 | } | |
864 | do_cleanups (old_cleanups); | |
865 | } | |
866 | #endif /* lseek linear. */ | |
867 | s->nlines = nlines; | |
868 | s->line_charpos = | |
c5aa993b JM |
869 | (int *) xmrealloc (s->objfile->md, (char *) line_charpos, |
870 | nlines * sizeof (int)); | |
c906108c SS |
871 | |
872 | } | |
873 | ||
874 | /* Return the character position of a line LINE in symtab S. | |
875 | Return 0 if anything is invalid. */ | |
876 | ||
c5aa993b | 877 | #if 0 /* Currently unused */ |
c906108c SS |
878 | |
879 | int | |
fba45db2 | 880 | source_line_charpos (struct symtab *s, int line) |
c906108c | 881 | { |
c5aa993b JM |
882 | if (!s) |
883 | return 0; | |
884 | if (!s->line_charpos || line <= 0) | |
885 | return 0; | |
c906108c SS |
886 | if (line > s->nlines) |
887 | line = s->nlines; | |
888 | return s->line_charpos[line - 1]; | |
889 | } | |
890 | ||
891 | /* Return the line number of character position POS in symtab S. */ | |
892 | ||
893 | int | |
fba45db2 | 894 | source_charpos_line (register struct symtab *s, register int chr) |
c906108c SS |
895 | { |
896 | register int line = 0; | |
897 | register int *lnp; | |
c5aa993b JM |
898 | |
899 | if (s == 0 || s->line_charpos == 0) | |
900 | return 0; | |
c906108c SS |
901 | lnp = s->line_charpos; |
902 | /* Files are usually short, so sequential search is Ok */ | |
c5aa993b | 903 | while (line < s->nlines && *lnp <= chr) |
c906108c SS |
904 | { |
905 | line++; | |
906 | lnp++; | |
907 | } | |
908 | if (line >= s->nlines) | |
909 | line = s->nlines; | |
910 | return line; | |
911 | } | |
912 | ||
c5aa993b | 913 | #endif /* 0 */ |
c906108c | 914 | \f |
c5aa993b | 915 | |
c906108c SS |
916 | /* Get full pathname and line number positions for a symtab. |
917 | Return nonzero if line numbers may have changed. | |
918 | Set *FULLNAME to actual name of the file as found by `openp', | |
919 | or to 0 if the file is not found. */ | |
920 | ||
921 | static int | |
fba45db2 | 922 | get_filename_and_charpos (struct symtab *s, char **fullname) |
c906108c SS |
923 | { |
924 | register int desc, linenums_changed = 0; | |
c5aa993b | 925 | |
c906108c SS |
926 | desc = open_source_file (s); |
927 | if (desc < 0) | |
928 | { | |
929 | if (fullname) | |
930 | *fullname = NULL; | |
931 | return 0; | |
c5aa993b | 932 | } |
c906108c SS |
933 | if (fullname) |
934 | *fullname = s->fullname; | |
c5aa993b JM |
935 | if (s->line_charpos == 0) |
936 | linenums_changed = 1; | |
937 | if (linenums_changed) | |
938 | find_source_lines (s, desc); | |
c906108c SS |
939 | close (desc); |
940 | return linenums_changed; | |
941 | } | |
942 | ||
943 | /* Print text describing the full name of the source file S | |
944 | and the line number LINE and its corresponding character position. | |
945 | The text starts with two Ctrl-z so that the Emacs-GDB interface | |
946 | can easily find it. | |
947 | ||
948 | MID_STATEMENT is nonzero if the PC is not at the beginning of that line. | |
949 | ||
950 | Return 1 if successful, 0 if could not find the file. */ | |
951 | ||
952 | int | |
fba45db2 KB |
953 | identify_source_line (struct symtab *s, int line, int mid_statement, |
954 | CORE_ADDR pc) | |
c906108c SS |
955 | { |
956 | if (s->line_charpos == 0) | |
c5aa993b | 957 | get_filename_and_charpos (s, (char **) NULL); |
c906108c SS |
958 | if (s->fullname == 0) |
959 | return 0; | |
960 | if (line > s->nlines) | |
961 | /* Don't index off the end of the line_charpos array. */ | |
962 | return 0; | |
963 | annotate_source (s->fullname, line, s->line_charpos[line - 1], | |
964 | mid_statement, pc); | |
965 | ||
966 | current_source_line = line; | |
967 | first_line_listed = line; | |
968 | last_line_listed = line; | |
969 | current_source_symtab = s; | |
970 | return 1; | |
971 | } | |
c906108c | 972 | \f |
c5aa993b | 973 | |
c906108c SS |
974 | /* Print source lines from the file of symtab S, |
975 | starting with line number LINE and stopping before line number STOPLINE. */ | |
976 | ||
a14ed312 KB |
977 | static void print_source_lines_base (struct symtab *s, int line, int stopline, |
978 | int noerror); | |
c906108c | 979 | static void |
fba45db2 | 980 | print_source_lines_base (struct symtab *s, int line, int stopline, int noerror) |
c906108c SS |
981 | { |
982 | register int c; | |
983 | register int desc; | |
984 | register FILE *stream; | |
985 | int nlines = stopline - line; | |
986 | ||
987 | /* Regardless of whether we can open the file, set current_source_symtab. */ | |
988 | current_source_symtab = s; | |
989 | current_source_line = line; | |
990 | first_line_listed = line; | |
991 | ||
8b93c638 JM |
992 | #ifdef UI_OUT |
993 | /* If printing of source lines is disabled, just print file and line number */ | |
994 | if (ui_out_test_flags (uiout, ui_source_list)) | |
995 | { | |
996 | #endif | |
c5aa993b JM |
997 | /* Only prints "No such file or directory" once */ |
998 | if ((s != last_source_visited) || (!last_source_error)) | |
999 | { | |
1000 | last_source_visited = s; | |
1001 | desc = open_source_file (s); | |
1002 | } | |
1003 | else | |
1004 | { | |
1005 | desc = last_source_error; | |
1006 | noerror = 1; | |
1007 | } | |
8b93c638 JM |
1008 | #ifdef UI_OUT |
1009 | } | |
1010 | else | |
1011 | { | |
1012 | desc = -1; | |
1013 | noerror = 1; | |
1014 | } | |
1015 | #endif | |
c906108c SS |
1016 | |
1017 | if (desc < 0) | |
1018 | { | |
1019 | last_source_error = desc; | |
1020 | ||
c5aa993b JM |
1021 | if (!noerror) |
1022 | { | |
c906108c SS |
1023 | char *name = alloca (strlen (s->filename) + 100); |
1024 | sprintf (name, "%d\t%s", line, s->filename); | |
1025 | print_sys_errmsg (name, errno); | |
1026 | } | |
1027 | else | |
8b93c638 JM |
1028 | #ifdef UI_OUT |
1029 | ui_out_field_int (uiout, "line", line); | |
1030 | ui_out_text (uiout, "\tin "); | |
1031 | ui_out_field_string (uiout, "file", s->filename); | |
1032 | ui_out_text (uiout, "\n"); | |
1033 | #else | |
c906108c | 1034 | printf_filtered ("%d\tin %s\n", line, s->filename); |
8b93c638 | 1035 | #endif |
c906108c SS |
1036 | |
1037 | return; | |
1038 | } | |
1039 | ||
1040 | last_source_error = 0; | |
1041 | ||
1042 | if (s->line_charpos == 0) | |
1043 | find_source_lines (s, desc); | |
1044 | ||
1045 | if (line < 1 || line > s->nlines) | |
1046 | { | |
1047 | close (desc); | |
1048 | error ("Line number %d out of range; %s has %d lines.", | |
1049 | line, s->filename, s->nlines); | |
1050 | } | |
1051 | ||
1052 | if (lseek (desc, s->line_charpos[line - 1], 0) < 0) | |
1053 | { | |
1054 | close (desc); | |
1055 | perror_with_name (s->filename); | |
1056 | } | |
1057 | ||
1058 | stream = fdopen (desc, FDOPEN_MODE); | |
1059 | clearerr (stream); | |
1060 | ||
1061 | while (nlines-- > 0) | |
1062 | { | |
8b93c638 JM |
1063 | #ifdef UI_OUT |
1064 | char buf[20]; | |
1065 | ||
1066 | c = fgetc (stream); | |
1067 | if (c == EOF) | |
1068 | break; | |
1069 | last_line_listed = current_source_line; | |
1070 | sprintf (buf, "%d\t", current_source_line++); | |
1071 | ui_out_text (uiout, buf); | |
1072 | do | |
1073 | { | |
1074 | if (c < 040 && c != '\t' && c != '\n' && c != '\r') | |
1075 | { | |
1076 | sprintf (buf, "^%c", c + 0100); | |
1077 | ui_out_text (uiout, buf); | |
1078 | } | |
1079 | else if (c == 0177) | |
1080 | ui_out_text (uiout, "^?"); | |
1081 | #ifdef CRLF_SOURCE_FILES | |
1082 | else if (c == '\r') | |
1083 | { | |
1084 | /* Skip a \r character, but only before a \n. */ | |
1085 | int c1 = fgetc (stream); | |
1086 | ||
1087 | if (c1 != '\n') | |
1088 | printf_filtered ("^%c", c + 0100); | |
1089 | if (c1 != EOF) | |
1090 | ungetc (c1, stream); | |
1091 | } | |
1092 | #endif | |
1093 | else | |
1094 | { | |
1095 | sprintf (buf, "%c", c); | |
1096 | ui_out_text (uiout, buf); | |
1097 | } | |
1098 | } | |
1099 | while (c != '\n' && (c = fgetc (stream)) >= 0); | |
1100 | #else | |
c906108c | 1101 | c = fgetc (stream); |
c5aa993b JM |
1102 | if (c == EOF) |
1103 | break; | |
c906108c SS |
1104 | last_line_listed = current_source_line; |
1105 | printf_filtered ("%d\t", current_source_line++); | |
1106 | do | |
1107 | { | |
1108 | if (c < 040 && c != '\t' && c != '\n' && c != '\r') | |
1109 | printf_filtered ("^%c", c + 0100); | |
1110 | else if (c == 0177) | |
1111 | printf_filtered ("^?"); | |
1112 | #ifdef CRLF_SOURCE_FILES | |
1113 | else if (c == '\r') | |
1114 | { | |
1115 | /* Just skip \r characters. */ | |
1116 | } | |
1117 | #endif | |
1118 | else | |
1119 | printf_filtered ("%c", c); | |
c5aa993b JM |
1120 | } |
1121 | while (c != '\n' && (c = fgetc (stream)) >= 0); | |
8b93c638 | 1122 | #endif |
c906108c SS |
1123 | } |
1124 | ||
1125 | fclose (stream); | |
1126 | } | |
1127 | \f | |
1128 | /* Show source lines from the file of symtab S, starting with line | |
1129 | number LINE and stopping before line number STOPLINE. If this is the | |
1130 | not the command line version, then the source is shown in the source | |
1131 | window otherwise it is simply printed */ | |
1132 | ||
c5aa993b | 1133 | void |
fba45db2 | 1134 | print_source_lines (struct symtab *s, int line, int stopline, int noerror) |
c906108c | 1135 | { |
c5aa993b | 1136 | print_source_lines_base (s, line, stopline, noerror); |
c906108c SS |
1137 | } |
1138 | \f | |
1139 | ||
1140 | ||
1141 | /* Print a list of files and line numbers which a user may choose from | |
c5aa993b JM |
1142 | in order to list a function which was specified ambiguously (as with |
1143 | `list classname::overloadedfuncname', for example). The vector in | |
1144 | SALS provides the filenames and line numbers. */ | |
c906108c SS |
1145 | |
1146 | static void | |
fba45db2 | 1147 | ambiguous_line_spec (struct symtabs_and_lines *sals) |
c906108c SS |
1148 | { |
1149 | int i; | |
1150 | ||
1151 | for (i = 0; i < sals->nelts; ++i) | |
c5aa993b JM |
1152 | printf_filtered ("file: \"%s\", line number: %d\n", |
1153 | sals->sals[i].symtab->filename, sals->sals[i].line); | |
c906108c SS |
1154 | } |
1155 | ||
1156 | static void | |
fba45db2 | 1157 | list_command (char *arg, int from_tty) |
c906108c SS |
1158 | { |
1159 | struct symtabs_and_lines sals, sals_end; | |
1160 | struct symtab_and_line sal, sal_end; | |
1161 | struct symbol *sym; | |
1162 | char *arg1; | |
1163 | int no_end = 1; | |
1164 | int dummy_end = 0; | |
1165 | int dummy_beg = 0; | |
1166 | int linenum_beg = 0; | |
1167 | char *p; | |
1168 | ||
c5aa993b | 1169 | if (!have_full_symbols () && !have_partial_symbols ()) |
c906108c SS |
1170 | error ("No symbol table is loaded. Use the \"file\" command."); |
1171 | ||
1172 | /* Pull in a current source symtab if necessary */ | |
1173 | if (current_source_symtab == 0 && | |
1174 | (arg == 0 || arg[0] == '+' || arg[0] == '-')) | |
1175 | select_source_symtab (0); | |
1176 | ||
1177 | /* "l" or "l +" lists next ten lines. */ | |
1178 | ||
1179 | if (arg == 0 || STREQ (arg, "+")) | |
1180 | { | |
1181 | if (current_source_symtab == 0) | |
1182 | error ("No default source file yet. Do \"help list\"."); | |
1183 | print_source_lines (current_source_symtab, current_source_line, | |
1184 | current_source_line + lines_to_list, 0); | |
1185 | return; | |
1186 | } | |
1187 | ||
1188 | /* "l -" lists previous ten lines, the ones before the ten just listed. */ | |
1189 | if (STREQ (arg, "-")) | |
1190 | { | |
1191 | if (current_source_symtab == 0) | |
1192 | error ("No default source file yet. Do \"help list\"."); | |
1193 | print_source_lines (current_source_symtab, | |
1194 | max (first_line_listed - lines_to_list, 1), | |
1195 | first_line_listed, 0); | |
1196 | return; | |
1197 | } | |
1198 | ||
1199 | /* Now if there is only one argument, decode it in SAL | |
1200 | and set NO_END. | |
1201 | If there are two arguments, decode them in SAL and SAL_END | |
1202 | and clear NO_END; however, if one of the arguments is blank, | |
1203 | set DUMMY_BEG or DUMMY_END to record that fact. */ | |
1204 | ||
1205 | arg1 = arg; | |
1206 | if (*arg1 == ',') | |
1207 | dummy_beg = 1; | |
1208 | else | |
1209 | { | |
1210 | sals = decode_line_1 (&arg1, 0, 0, 0, 0); | |
1211 | ||
c5aa993b JM |
1212 | if (!sals.nelts) |
1213 | return; /* C++ */ | |
c906108c SS |
1214 | if (sals.nelts > 1) |
1215 | { | |
1216 | ambiguous_line_spec (&sals); | |
b8c9b27d | 1217 | xfree (sals.sals); |
c906108c SS |
1218 | return; |
1219 | } | |
1220 | ||
1221 | sal = sals.sals[0]; | |
b8c9b27d | 1222 | xfree (sals.sals); |
c906108c SS |
1223 | } |
1224 | ||
1225 | /* Record whether the BEG arg is all digits. */ | |
1226 | ||
1227 | for (p = arg; p != arg1 && *p >= '0' && *p <= '9'; p++); | |
1228 | linenum_beg = (p == arg1); | |
1229 | ||
1230 | while (*arg1 == ' ' || *arg1 == '\t') | |
1231 | arg1++; | |
1232 | if (*arg1 == ',') | |
1233 | { | |
1234 | no_end = 0; | |
1235 | arg1++; | |
1236 | while (*arg1 == ' ' || *arg1 == '\t') | |
1237 | arg1++; | |
1238 | if (*arg1 == 0) | |
1239 | dummy_end = 1; | |
1240 | else | |
1241 | { | |
1242 | if (dummy_beg) | |
1243 | sals_end = decode_line_1 (&arg1, 0, 0, 0, 0); | |
1244 | else | |
1245 | sals_end = decode_line_1 (&arg1, 0, sal.symtab, sal.line, 0); | |
c5aa993b | 1246 | if (sals_end.nelts == 0) |
c906108c SS |
1247 | return; |
1248 | if (sals_end.nelts > 1) | |
1249 | { | |
1250 | ambiguous_line_spec (&sals_end); | |
b8c9b27d | 1251 | xfree (sals_end.sals); |
c906108c SS |
1252 | return; |
1253 | } | |
1254 | sal_end = sals_end.sals[0]; | |
b8c9b27d | 1255 | xfree (sals_end.sals); |
c906108c SS |
1256 | } |
1257 | } | |
1258 | ||
1259 | if (*arg1) | |
1260 | error ("Junk at end of line specification."); | |
1261 | ||
1262 | if (!no_end && !dummy_beg && !dummy_end | |
1263 | && sal.symtab != sal_end.symtab) | |
1264 | error ("Specified start and end are in different files."); | |
1265 | if (dummy_beg && dummy_end) | |
1266 | error ("Two empty args do not say what lines to list."); | |
c5aa993b | 1267 | |
c906108c SS |
1268 | /* if line was specified by address, |
1269 | first print exactly which line, and which file. | |
1270 | In this case, sal.symtab == 0 means address is outside | |
1271 | of all known source files, not that user failed to give a filename. */ | |
1272 | if (*arg == '*') | |
1273 | { | |
1274 | if (sal.symtab == 0) | |
1275 | /* FIXME-32x64--assumes sal.pc fits in long. */ | |
1276 | error ("No source file for address %s.", | |
c5aa993b | 1277 | local_hex_string ((unsigned long) sal.pc)); |
c906108c SS |
1278 | sym = find_pc_function (sal.pc); |
1279 | if (sym) | |
1280 | { | |
1281 | print_address_numeric (sal.pc, 1, gdb_stdout); | |
1282 | printf_filtered (" is in "); | |
1283 | fputs_filtered (SYMBOL_SOURCE_NAME (sym), gdb_stdout); | |
1284 | printf_filtered (" (%s:%d).\n", sal.symtab->filename, sal.line); | |
1285 | } | |
1286 | else | |
1287 | { | |
1288 | print_address_numeric (sal.pc, 1, gdb_stdout); | |
1289 | printf_filtered (" is at %s:%d.\n", | |
1290 | sal.symtab->filename, sal.line); | |
1291 | } | |
1292 | } | |
1293 | ||
1294 | /* If line was not specified by just a line number, | |
1295 | and it does not imply a symtab, it must be an undebuggable symbol | |
1296 | which means no source code. */ | |
1297 | ||
c5aa993b | 1298 | if (!linenum_beg && sal.symtab == 0) |
c906108c SS |
1299 | error ("No line number known for %s.", arg); |
1300 | ||
1301 | /* If this command is repeated with RET, | |
1302 | turn it into the no-arg variant. */ | |
1303 | ||
1304 | if (from_tty) | |
1305 | *arg = 0; | |
1306 | ||
1307 | if (dummy_beg && sal_end.symtab == 0) | |
1308 | error ("No default source file yet. Do \"help list\"."); | |
1309 | if (dummy_beg) | |
1310 | print_source_lines (sal_end.symtab, | |
1311 | max (sal_end.line - (lines_to_list - 1), 1), | |
1312 | sal_end.line + 1, 0); | |
1313 | else if (sal.symtab == 0) | |
1314 | error ("No default source file yet. Do \"help list\"."); | |
1315 | else if (no_end) | |
7a292a7a | 1316 | { |
d4f3574e SS |
1317 | int first_line = sal.line - lines_to_list / 2; |
1318 | ||
1319 | if (first_line < 1) first_line = 1; | |
1320 | ||
1321 | print_source_lines (sal.symtab, first_line, first_line + lines_to_list, | |
1322 | 0); | |
7a292a7a | 1323 | } |
c906108c SS |
1324 | else |
1325 | print_source_lines (sal.symtab, sal.line, | |
1326 | (dummy_end | |
1327 | ? sal.line + lines_to_list | |
1328 | : sal_end.line + 1), | |
1329 | 0); | |
1330 | } | |
1331 | \f | |
1332 | /* Print info on range of pc's in a specified line. */ | |
1333 | ||
1334 | static void | |
fba45db2 | 1335 | line_info (char *arg, int from_tty) |
c906108c SS |
1336 | { |
1337 | struct symtabs_and_lines sals; | |
1338 | struct symtab_and_line sal; | |
1339 | CORE_ADDR start_pc, end_pc; | |
1340 | int i; | |
1341 | ||
c5aa993b | 1342 | INIT_SAL (&sal); /* initialize to zeroes */ |
c906108c SS |
1343 | |
1344 | if (arg == 0) | |
1345 | { | |
1346 | sal.symtab = current_source_symtab; | |
1347 | sal.line = last_line_listed; | |
1348 | sals.nelts = 1; | |
1349 | sals.sals = (struct symtab_and_line *) | |
1350 | xmalloc (sizeof (struct symtab_and_line)); | |
1351 | sals.sals[0] = sal; | |
1352 | } | |
1353 | else | |
1354 | { | |
1355 | sals = decode_line_spec_1 (arg, 0); | |
c5aa993b | 1356 | |
c906108c SS |
1357 | dont_repeat (); |
1358 | } | |
1359 | ||
1360 | /* C++ More than one line may have been specified, as when the user | |
1361 | specifies an overloaded function name. Print info on them all. */ | |
1362 | for (i = 0; i < sals.nelts; i++) | |
1363 | { | |
1364 | sal = sals.sals[i]; | |
c5aa993b | 1365 | |
c906108c SS |
1366 | if (sal.symtab == 0) |
1367 | { | |
1368 | printf_filtered ("No line number information available"); | |
1369 | if (sal.pc != 0) | |
1370 | { | |
1371 | /* This is useful for "info line *0x7f34". If we can't tell the | |
c5aa993b JM |
1372 | user about a source line, at least let them have the symbolic |
1373 | address. */ | |
c906108c SS |
1374 | printf_filtered (" for address "); |
1375 | wrap_here (" "); | |
1376 | print_address (sal.pc, gdb_stdout); | |
1377 | } | |
1378 | else | |
1379 | printf_filtered ("."); | |
1380 | printf_filtered ("\n"); | |
1381 | } | |
1382 | else if (sal.line > 0 | |
1383 | && find_line_pc_range (sal, &start_pc, &end_pc)) | |
1384 | { | |
1385 | if (start_pc == end_pc) | |
1386 | { | |
1387 | printf_filtered ("Line %d of \"%s\"", | |
1388 | sal.line, sal.symtab->filename); | |
1389 | wrap_here (" "); | |
1390 | printf_filtered (" is at address "); | |
1391 | print_address (start_pc, gdb_stdout); | |
1392 | wrap_here (" "); | |
1393 | printf_filtered (" but contains no code.\n"); | |
1394 | } | |
1395 | else | |
1396 | { | |
1397 | printf_filtered ("Line %d of \"%s\"", | |
1398 | sal.line, sal.symtab->filename); | |
1399 | wrap_here (" "); | |
1400 | printf_filtered (" starts at address "); | |
1401 | print_address (start_pc, gdb_stdout); | |
1402 | wrap_here (" "); | |
1403 | printf_filtered (" and ends at "); | |
1404 | print_address (end_pc, gdb_stdout); | |
1405 | printf_filtered (".\n"); | |
1406 | } | |
1407 | ||
1408 | /* x/i should display this line's code. */ | |
1409 | set_next_address (start_pc); | |
1410 | ||
1411 | /* Repeating "info line" should do the following line. */ | |
1412 | last_line_listed = sal.line + 1; | |
1413 | ||
1414 | /* If this is the only line, show the source code. If it could | |
1415 | not find the file, don't do anything special. */ | |
1416 | if (annotation_level && sals.nelts == 1) | |
1417 | identify_source_line (sal.symtab, sal.line, 0, start_pc); | |
1418 | } | |
1419 | else | |
1420 | /* Is there any case in which we get here, and have an address | |
1421 | which the user would want to see? If we have debugging symbols | |
1422 | and no line numbers? */ | |
1423 | printf_filtered ("Line number %d is out of range for \"%s\".\n", | |
1424 | sal.line, sal.symtab->filename); | |
1425 | } | |
b8c9b27d | 1426 | xfree (sals.sals); |
c906108c SS |
1427 | } |
1428 | \f | |
1429 | /* Commands to search the source file for a regexp. */ | |
1430 | ||
1431 | /* ARGSUSED */ | |
1432 | static void | |
fba45db2 | 1433 | forward_search_command (char *regex, int from_tty) |
c906108c SS |
1434 | { |
1435 | register int c; | |
1436 | register int desc; | |
1437 | register FILE *stream; | |
1438 | int line; | |
1439 | char *msg; | |
1440 | ||
c906108c | 1441 | line = last_line_listed + 1; |
c906108c SS |
1442 | |
1443 | msg = (char *) re_comp (regex); | |
1444 | if (msg) | |
1445 | error (msg); | |
1446 | ||
1447 | if (current_source_symtab == 0) | |
1448 | select_source_symtab (0); | |
1449 | ||
1450 | desc = open_source_file (current_source_symtab); | |
1451 | if (desc < 0) | |
1452 | perror_with_name (current_source_symtab->filename); | |
1453 | ||
1454 | if (current_source_symtab->line_charpos == 0) | |
1455 | find_source_lines (current_source_symtab, desc); | |
1456 | ||
1457 | if (line < 1 || line > current_source_symtab->nlines) | |
1458 | { | |
1459 | close (desc); | |
1460 | error ("Expression not found"); | |
1461 | } | |
1462 | ||
1463 | if (lseek (desc, current_source_symtab->line_charpos[line - 1], 0) < 0) | |
1464 | { | |
1465 | close (desc); | |
1466 | perror_with_name (current_source_symtab->filename); | |
1467 | } | |
1468 | ||
1469 | stream = fdopen (desc, FDOPEN_MODE); | |
1470 | clearerr (stream); | |
c5aa993b JM |
1471 | while (1) |
1472 | { | |
1473 | static char *buf = NULL; | |
1474 | register char *p; | |
1475 | int cursize, newsize; | |
1476 | ||
1477 | cursize = 256; | |
1478 | buf = xmalloc (cursize); | |
1479 | p = buf; | |
1480 | ||
1481 | c = getc (stream); | |
1482 | if (c == EOF) | |
1483 | break; | |
1484 | do | |
c906108c | 1485 | { |
c5aa993b JM |
1486 | *p++ = c; |
1487 | if (p - buf == cursize) | |
1488 | { | |
1489 | newsize = cursize + cursize / 2; | |
1490 | buf = xrealloc (buf, newsize); | |
1491 | p = buf + cursize; | |
1492 | cursize = newsize; | |
1493 | } | |
c906108c | 1494 | } |
c5aa993b | 1495 | while (c != '\n' && (c = getc (stream)) >= 0); |
c906108c | 1496 | |
7be570e7 JM |
1497 | #ifdef CRLF_SOURCE_FILES |
1498 | /* Remove the \r, if any, at the end of the line, otherwise | |
1499 | regular expressions that end with $ or \n won't work. */ | |
1500 | if (p - buf > 1 && p[-2] == '\r') | |
1501 | { | |
1502 | p--; | |
1503 | p[-1] = '\n'; | |
1504 | } | |
1505 | #endif | |
1506 | ||
c5aa993b JM |
1507 | /* we now have a source line in buf, null terminate and match */ |
1508 | *p = 0; | |
1509 | if (re_exec (buf) > 0) | |
1510 | { | |
1511 | /* Match! */ | |
1512 | fclose (stream); | |
c5aa993b JM |
1513 | print_source_lines (current_source_symtab, line, line + 1, 0); |
1514 | set_internalvar (lookup_internalvar ("_"), | |
1515 | value_from_longest (builtin_type_int, | |
1516 | (LONGEST) line)); | |
1517 | current_source_line = max (line - lines_to_list / 2, 1); | |
1518 | return; | |
1519 | } | |
1520 | line++; | |
1521 | } | |
c906108c SS |
1522 | |
1523 | printf_filtered ("Expression not found\n"); | |
1524 | fclose (stream); | |
1525 | } | |
1526 | ||
1527 | /* ARGSUSED */ | |
1528 | static void | |
fba45db2 | 1529 | reverse_search_command (char *regex, int from_tty) |
c906108c SS |
1530 | { |
1531 | register int c; | |
1532 | register int desc; | |
1533 | register FILE *stream; | |
1534 | int line; | |
1535 | char *msg; | |
063190b6 | 1536 | |
c906108c | 1537 | line = last_line_listed - 1; |
c906108c SS |
1538 | |
1539 | msg = (char *) re_comp (regex); | |
1540 | if (msg) | |
1541 | error (msg); | |
1542 | ||
1543 | if (current_source_symtab == 0) | |
1544 | select_source_symtab (0); | |
1545 | ||
1546 | desc = open_source_file (current_source_symtab); | |
1547 | if (desc < 0) | |
1548 | perror_with_name (current_source_symtab->filename); | |
1549 | ||
1550 | if (current_source_symtab->line_charpos == 0) | |
1551 | find_source_lines (current_source_symtab, desc); | |
1552 | ||
1553 | if (line < 1 || line > current_source_symtab->nlines) | |
1554 | { | |
1555 | close (desc); | |
1556 | error ("Expression not found"); | |
1557 | } | |
1558 | ||
1559 | if (lseek (desc, current_source_symtab->line_charpos[line - 1], 0) < 0) | |
1560 | { | |
1561 | close (desc); | |
1562 | perror_with_name (current_source_symtab->filename); | |
1563 | } | |
1564 | ||
1565 | stream = fdopen (desc, FDOPEN_MODE); | |
1566 | clearerr (stream); | |
1567 | while (line > 1) | |
1568 | { | |
1569 | /* FIXME!!! We walk right off the end of buf if we get a long line!!! */ | |
1570 | char buf[4096]; /* Should be reasonable??? */ | |
1571 | register char *p = buf; | |
1572 | ||
1573 | c = getc (stream); | |
1574 | if (c == EOF) | |
1575 | break; | |
c5aa993b JM |
1576 | do |
1577 | { | |
1578 | *p++ = c; | |
1579 | } | |
1580 | while (c != '\n' && (c = getc (stream)) >= 0); | |
c906108c | 1581 | |
7be570e7 JM |
1582 | #ifdef CRLF_SOURCE_FILES |
1583 | /* Remove the \r, if any, at the end of the line, otherwise | |
1584 | regular expressions that end with $ or \n won't work. */ | |
1585 | if (p - buf > 1 && p[-2] == '\r') | |
1586 | { | |
1587 | p--; | |
1588 | p[-1] = '\n'; | |
1589 | } | |
1590 | #endif | |
1591 | ||
c906108c SS |
1592 | /* We now have a source line in buf; null terminate and match. */ |
1593 | *p = 0; | |
1594 | if (re_exec (buf) > 0) | |
1595 | { | |
1596 | /* Match! */ | |
1597 | fclose (stream); | |
c5aa993b | 1598 | print_source_lines (current_source_symtab, line, line + 1, 0); |
c906108c SS |
1599 | set_internalvar (lookup_internalvar ("_"), |
1600 | value_from_longest (builtin_type_int, | |
1601 | (LONGEST) line)); | |
1602 | current_source_line = max (line - lines_to_list / 2, 1); | |
1603 | return; | |
1604 | } | |
1605 | line--; | |
1606 | if (fseek (stream, current_source_symtab->line_charpos[line - 1], 0) < 0) | |
1607 | { | |
1608 | fclose (stream); | |
1609 | perror_with_name (current_source_symtab->filename); | |
1610 | } | |
1611 | } | |
1612 | ||
1613 | printf_filtered ("Expression not found\n"); | |
1614 | fclose (stream); | |
1615 | return; | |
1616 | } | |
1617 | \f | |
1618 | void | |
fba45db2 | 1619 | _initialize_source (void) |
c906108c SS |
1620 | { |
1621 | struct cmd_list_element *c; | |
1622 | current_source_symtab = 0; | |
1623 | init_source_path (); | |
1624 | ||
1625 | /* The intention is to use POSIX Basic Regular Expressions. | |
1626 | Always use the GNU regex routine for consistency across all hosts. | |
1627 | Our current GNU regex.c does not have all the POSIX features, so this is | |
1628 | just an approximation. */ | |
1629 | re_set_syntax (RE_SYNTAX_GREP); | |
1630 | ||
1631 | c = add_cmd ("directory", class_files, directory_command, | |
c5aa993b | 1632 | "Add directory DIR to beginning of search path for source files.\n\ |
c906108c SS |
1633 | Forget cached info on source file locations and line positions.\n\ |
1634 | DIR can also be $cwd for the current working directory, or $cdir for the\n\ | |
1635 | directory in which the source file was compiled into object code.\n\ | |
1636 | With no argument, reset the search path to $cdir:$cwd, the default.", | |
1637 | &cmdlist); | |
1638 | ||
1639 | if (dbx_commands) | |
c5aa993b | 1640 | add_com_alias ("use", "directory", class_files, 0); |
c906108c SS |
1641 | |
1642 | c->completer = filename_completer; | |
1643 | ||
1644 | add_cmd ("directories", no_class, show_directories, | |
1645 | "Current search path for finding source files.\n\ | |
1646 | $cwd in the path means the current working directory.\n\ | |
1647 | $cdir in the path means the compilation directory of the source file.", | |
1648 | &showlist); | |
1649 | ||
1650 | if (xdb_commands) | |
1651 | { | |
c5aa993b | 1652 | add_com_alias ("D", "directory", class_files, 0); |
c906108c | 1653 | add_cmd ("ld", no_class, show_directories, |
c5aa993b | 1654 | "Current search path for finding source files.\n\ |
c906108c SS |
1655 | $cwd in the path means the current working directory.\n\ |
1656 | $cdir in the path means the compilation directory of the source file.", | |
c5aa993b | 1657 | &cmdlist); |
c906108c SS |
1658 | } |
1659 | ||
1660 | add_info ("source", source_info, | |
1661 | "Information about the current source file."); | |
1662 | ||
1663 | add_info ("line", line_info, | |
1664 | concat ("Core addresses of the code for a source line.\n\ | |
1665 | Line can be specified as\n\ | |
1666 | LINENUM, to list around that line in current file,\n\ | |
1667 | FILE:LINENUM, to list around that line in that file,\n\ | |
1668 | FUNCTION, to list around beginning of that function,\n\ | |
1669 | FILE:FUNCTION, to distinguish among like-named static functions.\n\ | |
1670 | ", "\ | |
1671 | Default is to describe the last source line that was listed.\n\n\ | |
1672 | This sets the default address for \"x\" to the line's first instruction\n\ | |
1673 | so that \"x/i\" suffices to start examining the machine code.\n\ | |
1674 | The address is also stored as the value of \"$_\".", NULL)); | |
1675 | ||
1676 | add_com ("forward-search", class_files, forward_search_command, | |
1677 | "Search for regular expression (see regex(3)) from last line listed.\n\ | |
1678 | The matching line number is also stored as the value of \"$_\"."); | |
1679 | add_com_alias ("search", "forward-search", class_files, 0); | |
1680 | ||
1681 | add_com ("reverse-search", class_files, reverse_search_command, | |
1682 | "Search backward for regular expression (see regex(3)) from last line listed.\n\ | |
1683 | The matching line number is also stored as the value of \"$_\"."); | |
1684 | ||
1685 | if (xdb_commands) | |
1686 | { | |
c5aa993b JM |
1687 | add_com_alias ("/", "forward-search", class_files, 0); |
1688 | add_com_alias ("?", "reverse-search", class_files, 0); | |
c906108c SS |
1689 | } |
1690 | ||
1691 | add_com ("list", class_files, list_command, | |
1692 | concat ("List specified function or line.\n\ | |
1693 | With no argument, lists ten more lines after or around previous listing.\n\ | |
1694 | \"list -\" lists the ten lines before a previous ten-line listing.\n\ | |
1695 | One argument specifies a line, and ten lines are listed around that line.\n\ | |
1696 | Two arguments with comma between specify starting and ending lines to list.\n\ | |
1697 | ", "\ | |
1698 | Lines can be specified in these ways:\n\ | |
1699 | LINENUM, to list around that line in current file,\n\ | |
1700 | FILE:LINENUM, to list around that line in that file,\n\ | |
1701 | FUNCTION, to list around beginning of that function,\n\ | |
1702 | FILE:FUNCTION, to distinguish among like-named static functions.\n\ | |
1703 | *ADDRESS, to list around the line containing that address.\n\ | |
1704 | With two args if one is empty it stands for ten lines away from the other arg.", NULL)); | |
1705 | ||
1706 | if (!xdb_commands) | |
1707 | add_com_alias ("l", "list", class_files, 1); | |
1708 | else | |
1709 | add_com_alias ("v", "list", class_files, 1); | |
1710 | ||
1711 | if (dbx_commands) | |
1712 | add_com_alias ("file", "list", class_files, 1); | |
1713 | ||
1714 | add_show_from_set | |
1715 | (add_set_cmd ("listsize", class_support, var_uinteger, | |
c5aa993b JM |
1716 | (char *) &lines_to_list, |
1717 | "Set number of source lines gdb will list by default.", | |
c906108c SS |
1718 | &setlist), |
1719 | &showlist); | |
1720 | } |