Commit | Line | Data |
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c906108c | 1 | /* Work with executable files, for GDB. |
4646aa9d | 2 | |
32d0add0 | 3 | Copyright (C) 1988-2015 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 | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 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 | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
19 | |
20 | #include "defs.h" | |
21 | #include "frame.h" | |
22 | #include "inferior.h" | |
23 | #include "target.h" | |
24 | #include "gdbcmd.h" | |
25 | #include "language.h" | |
0ba1096a | 26 | #include "filenames.h" |
c906108c SS |
27 | #include "symfile.h" |
28 | #include "objfiles.h" | |
c5f0f3d0 | 29 | #include "completer.h" |
fd0407d6 | 30 | #include "value.h" |
4646aa9d | 31 | #include "exec.h" |
ea53e89f | 32 | #include "observer.h" |
dacec2a8 | 33 | #include "arch-utils.h" |
6c95b8df PA |
34 | #include "gdbthread.h" |
35 | #include "progspace.h" | |
cbb099e8 | 36 | #include "gdb_bfd.h" |
b427c1bc | 37 | #include "gcore.h" |
c906108c | 38 | |
c906108c | 39 | #include <fcntl.h> |
dbda9972 | 40 | #include "readline/readline.h" |
c906108c SS |
41 | #include "gdbcore.h" |
42 | ||
43 | #include <ctype.h> | |
53ce3c39 | 44 | #include <sys/stat.h> |
a9a5a3d1 | 45 | #include "solist.h" |
c906108c | 46 | |
9a4105ab | 47 | void (*deprecated_file_changed_hook) (char *); |
c906108c SS |
48 | |
49 | /* Prototypes for local functions */ | |
50 | ||
a14ed312 | 51 | static void file_command (char *, int); |
c906108c | 52 | |
a14ed312 | 53 | static void set_section_command (char *, int); |
c906108c | 54 | |
a14ed312 | 55 | static void exec_files_info (struct target_ops *); |
c906108c | 56 | |
a14ed312 | 57 | static void init_exec_ops (void); |
c906108c | 58 | |
a14ed312 | 59 | void _initialize_exec (void); |
c906108c | 60 | |
c906108c SS |
61 | /* The target vector for executable files. */ |
62 | ||
e8b2341c | 63 | static struct target_ops exec_ops; |
c906108c | 64 | |
c906108c SS |
65 | /* Whether to open exec and core files read-only or read-write. */ |
66 | ||
67 | int write_files = 0; | |
920d2a44 AC |
68 | static void |
69 | show_write_files (struct ui_file *file, int from_tty, | |
70 | struct cmd_list_element *c, const char *value) | |
71 | { | |
72 | fprintf_filtered (file, _("Writing into executable and core files is %s.\n"), | |
73 | value); | |
74 | } | |
75 | ||
c906108c | 76 | |
4c42eaff | 77 | static void |
014f9477 | 78 | exec_open (const char *args, int from_tty) |
1adeb98a FN |
79 | { |
80 | target_preopen (from_tty); | |
81 | exec_file_attach (args, from_tty); | |
82 | } | |
83 | ||
07b82ea5 PA |
84 | /* Close and clear exec_bfd. If we end up with no target sections to |
85 | read memory from, this unpushes the exec_ops target. */ | |
86 | ||
6c95b8df PA |
87 | void |
88 | exec_close (void) | |
07b82ea5 PA |
89 | { |
90 | if (exec_bfd) | |
91 | { | |
92 | bfd *abfd = exec_bfd; | |
07b82ea5 | 93 | |
cbb099e8 | 94 | gdb_bfd_unref (abfd); |
07b82ea5 PA |
95 | |
96 | /* Removing target sections may close the exec_ops target. | |
97 | Clear exec_bfd before doing so to prevent recursion. */ | |
98 | exec_bfd = NULL; | |
99 | exec_bfd_mtime = 0; | |
100 | ||
046ac79f | 101 | remove_target_sections (&exec_bfd); |
1f0c4988 JK |
102 | |
103 | xfree (exec_filename); | |
104 | exec_filename = NULL; | |
07b82ea5 PA |
105 | } |
106 | } | |
107 | ||
6c95b8df PA |
108 | /* This is the target_close implementation. Clears all target |
109 | sections and closes all executable bfds from all program spaces. */ | |
110 | ||
c906108c | 111 | static void |
de90e03d | 112 | exec_close_1 (struct target_ops *self) |
c906108c | 113 | { |
ab16fce8 TT |
114 | struct program_space *ss; |
115 | struct cleanup *old_chain; | |
6c95b8df | 116 | |
ab16fce8 TT |
117 | old_chain = save_current_program_space (); |
118 | ALL_PSPACES (ss) | |
6c95b8df | 119 | { |
ab16fce8 TT |
120 | set_current_program_space (ss); |
121 | clear_section_table (current_target_sections); | |
122 | exec_close (); | |
6c95b8df | 123 | } |
ab16fce8 TT |
124 | |
125 | do_cleanups (old_chain); | |
c906108c SS |
126 | } |
127 | ||
1adeb98a FN |
128 | void |
129 | exec_file_clear (int from_tty) | |
130 | { | |
131 | /* Remove exec file. */ | |
6c95b8df | 132 | exec_close (); |
1adeb98a FN |
133 | |
134 | if (from_tty) | |
a3f17187 | 135 | printf_unfiltered (_("No executable file now.\n")); |
1adeb98a FN |
136 | } |
137 | ||
a10de604 GB |
138 | /* See gdbcore.h. */ |
139 | ||
140 | void | |
141 | exec_file_locate_attach (int pid, int from_tty) | |
142 | { | |
143 | char *exec_file, *full_exec_path = NULL; | |
144 | ||
145 | /* Do nothing if we already have an executable filename. */ | |
146 | exec_file = (char *) get_exec_file (0); | |
147 | if (exec_file != NULL) | |
148 | return; | |
149 | ||
150 | /* Try to determine a filename from the process itself. */ | |
151 | exec_file = target_pid_to_exec_file (pid); | |
152 | if (exec_file == NULL) | |
153 | return; | |
154 | ||
a9a5a3d1 GB |
155 | /* If gdb_sysroot is not empty and the discovered filename |
156 | is absolute then prefix the filename with gdb_sysroot. */ | |
157 | if (gdb_sysroot != NULL && *gdb_sysroot != '\0' | |
158 | && IS_ABSOLUTE_PATH (exec_file)) | |
159 | { | |
160 | int fd = -1; | |
161 | ||
162 | full_exec_path = exec_file_find (exec_file, &fd); | |
163 | if (fd >= 0) | |
164 | close (fd); | |
165 | } | |
a10de604 | 166 | |
a9a5a3d1 GB |
167 | if (full_exec_path == NULL) |
168 | { | |
169 | /* It's possible we don't have a full path, but rather just a | |
170 | filename. Some targets, such as HP-UX, don't provide the | |
171 | full path, sigh. | |
172 | ||
173 | Attempt to qualify the filename against the source path. | |
174 | (If that fails, we'll just fall back on the original | |
175 | filename. Not much more we can do...) */ | |
176 | if (!source_full_path_of (exec_file, &full_exec_path)) | |
177 | full_exec_path = xstrdup (exec_file); | |
178 | } | |
a10de604 GB |
179 | |
180 | exec_file_attach (full_exec_path, from_tty); | |
181 | symbol_file_add_main (full_exec_path, from_tty); | |
182 | } | |
183 | ||
907083d1 | 184 | /* Set FILENAME as the new exec file. |
c906108c | 185 | |
c5aa993b JM |
186 | This function is intended to be behave essentially the same |
187 | as exec_file_command, except that the latter will detect when | |
188 | a target is being debugged, and will ask the user whether it | |
189 | should be shut down first. (If the answer is "no", then the | |
190 | new file is ignored.) | |
c906108c | 191 | |
c5aa993b JM |
192 | This file is used by exec_file_command, to do the work of opening |
193 | and processing the exec file after any prompting has happened. | |
c906108c | 194 | |
c5aa993b JM |
195 | And, it is used by child_attach, when the attach command was |
196 | given a pid but not a exec pathname, and the attach command could | |
197 | figure out the pathname from the pid. (In this case, we shouldn't | |
198 | ask the user whether the current target should be shut down -- | |
907083d1 | 199 | we're supplying the exec pathname late for good reason.) */ |
c906108c SS |
200 | |
201 | void | |
5f08566b | 202 | exec_file_attach (const char *filename, int from_tty) |
c906108c | 203 | { |
9b333ba3 TT |
204 | struct cleanup *cleanups; |
205 | ||
206 | /* First, acquire a reference to the current exec_bfd. We release | |
207 | this at the end of the function; but acquiring it now lets the | |
208 | BFD cache return it if this call refers to the same file. */ | |
209 | gdb_bfd_ref (exec_bfd); | |
210 | cleanups = make_cleanup_bfd_unref (exec_bfd); | |
211 | ||
c906108c | 212 | /* Remove any previous exec file. */ |
6c95b8df | 213 | exec_close (); |
c906108c SS |
214 | |
215 | /* Now open and digest the file the user requested, if any. */ | |
216 | ||
1adeb98a FN |
217 | if (!filename) |
218 | { | |
219 | if (from_tty) | |
a3f17187 | 220 | printf_unfiltered (_("No executable file now.\n")); |
7a107747 DJ |
221 | |
222 | set_gdbarch_from_file (NULL); | |
1adeb98a FN |
223 | } |
224 | else | |
c906108c | 225 | { |
64c0b5de | 226 | int load_via_target = 0; |
1f0c4988 | 227 | char *scratch_pathname, *canonical_pathname; |
c906108c | 228 | int scratch_chan; |
07b82ea5 | 229 | struct target_section *sections = NULL, *sections_end = NULL; |
d18b8b7a | 230 | char **matching; |
c5aa993b | 231 | |
64c0b5de GB |
232 | if (is_target_filename (filename)) |
233 | { | |
234 | if (target_filesystem_is_local ()) | |
235 | filename += strlen (TARGET_SYSROOT_PREFIX); | |
236 | else | |
237 | load_via_target = 1; | |
238 | } | |
239 | ||
240 | if (load_via_target) | |
c5aa993b | 241 | { |
64c0b5de GB |
242 | /* gdb_bfd_fopen does not support "target:" filenames. */ |
243 | if (write_files) | |
244 | warning (_("writing into executable files is " | |
245 | "not supported for %s sysroots"), | |
246 | TARGET_SYSROOT_PREFIX); | |
247 | ||
248 | scratch_pathname = xstrdup (filename); | |
249 | make_cleanup (xfree, scratch_pathname); | |
250 | ||
251 | scratch_chan = -1; | |
d7f9d729 | 252 | |
64c0b5de | 253 | canonical_pathname = scratch_pathname; |
c5aa993b | 254 | } |
64c0b5de GB |
255 | else |
256 | { | |
257 | scratch_chan = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, | |
258 | filename, write_files ? | |
259 | O_RDWR | O_BINARY : O_RDONLY | O_BINARY, | |
260 | &scratch_pathname); | |
261 | #if defined(__GO32__) || defined(_WIN32) || defined(__CYGWIN__) | |
262 | if (scratch_chan < 0) | |
263 | { | |
264 | char *exename = alloca (strlen (filename) + 5); | |
265 | ||
266 | strcat (strcpy (exename, filename), ".exe"); | |
267 | scratch_chan = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, | |
268 | exename, write_files ? | |
269 | O_RDWR | O_BINARY | |
270 | : O_RDONLY | O_BINARY, | |
271 | &scratch_pathname); | |
272 | } | |
c906108c | 273 | #endif |
64c0b5de GB |
274 | if (scratch_chan < 0) |
275 | perror_with_name (filename); | |
a4453b7e | 276 | |
64c0b5de | 277 | make_cleanup (xfree, scratch_pathname); |
a4453b7e | 278 | |
64c0b5de GB |
279 | /* gdb_bfd_open (and its variants) prefers canonicalized |
280 | pathname for better BFD caching. */ | |
281 | canonical_pathname = gdb_realpath (scratch_pathname); | |
282 | make_cleanup (xfree, canonical_pathname); | |
283 | } | |
1f0c4988 | 284 | |
64c0b5de | 285 | if (write_files && !load_via_target) |
1f0c4988 | 286 | exec_bfd = gdb_bfd_fopen (canonical_pathname, gnutarget, |
1c00ec6b TT |
287 | FOPEN_RUB, scratch_chan); |
288 | else | |
1f0c4988 | 289 | exec_bfd = gdb_bfd_open (canonical_pathname, gnutarget, scratch_chan); |
c906108c SS |
290 | |
291 | if (!exec_bfd) | |
9fe4a216 | 292 | { |
9fe4a216 TT |
293 | error (_("\"%s\": could not open as an executable file: %s"), |
294 | scratch_pathname, bfd_errmsg (bfd_get_error ())); | |
295 | } | |
c906108c | 296 | |
64c0b5de GB |
297 | /* gdb_realpath_keepfile resolves symlinks on the local |
298 | filesystem and so cannot be used for "target:" files. */ | |
1f0c4988 | 299 | gdb_assert (exec_filename == NULL); |
64c0b5de GB |
300 | if (load_via_target) |
301 | exec_filename = xstrdup (bfd_get_filename (exec_bfd)); | |
302 | else | |
303 | exec_filename = gdb_realpath_keepfile (scratch_pathname); | |
1f0c4988 | 304 | |
d18b8b7a | 305 | if (!bfd_check_format_matches (exec_bfd, bfd_object, &matching)) |
c906108c SS |
306 | { |
307 | /* Make sure to close exec_bfd, or else "run" might try to use | |
308 | it. */ | |
6c95b8df | 309 | exec_close (); |
8a3fe4f8 | 310 | error (_("\"%s\": not in executable format: %s"), |
d18b8b7a HZ |
311 | scratch_pathname, |
312 | gdb_bfd_errmsg (bfd_get_error (), matching)); | |
c906108c SS |
313 | } |
314 | ||
07b82ea5 | 315 | if (build_section_table (exec_bfd, §ions, §ions_end)) |
c906108c SS |
316 | { |
317 | /* Make sure to close exec_bfd, or else "run" might try to use | |
318 | it. */ | |
6c95b8df | 319 | exec_close (); |
8a3fe4f8 | 320 | error (_("\"%s\": can't find the file sections: %s"), |
c906108c SS |
321 | scratch_pathname, bfd_errmsg (bfd_get_error ())); |
322 | } | |
323 | ||
c04ea773 DJ |
324 | exec_bfd_mtime = bfd_get_mtime (exec_bfd); |
325 | ||
c906108c SS |
326 | validate_files (); |
327 | ||
328 | set_gdbarch_from_file (exec_bfd); | |
329 | ||
07b82ea5 | 330 | /* Add the executable's sections to the current address spaces' |
6c95b8df PA |
331 | list of sections. This possibly pushes the exec_ops |
332 | target. */ | |
ed9eebaf | 333 | add_target_sections (&exec_bfd, sections, sections_end); |
07b82ea5 | 334 | xfree (sections); |
c906108c SS |
335 | |
336 | /* Tell display code (if any) about the changed file name. */ | |
9a4105ab AC |
337 | if (deprecated_exec_file_display_hook) |
338 | (*deprecated_exec_file_display_hook) (filename); | |
c906108c | 339 | } |
9b333ba3 TT |
340 | |
341 | do_cleanups (cleanups); | |
342 | ||
ce7d4522 | 343 | bfd_cache_close_all (); |
781b42b0 | 344 | observer_notify_executable_changed (); |
c906108c SS |
345 | } |
346 | ||
347 | /* Process the first arg in ARGS as the new exec file. | |
348 | ||
c5aa993b JM |
349 | Note that we have to explicitly ignore additional args, since we can |
350 | be called from file_command(), which also calls symbol_file_command() | |
1adeb98a FN |
351 | which can take multiple args. |
352 | ||
0963b4bd | 353 | If ARGS is NULL, we just want to close the exec file. */ |
c906108c | 354 | |
1adeb98a | 355 | static void |
fba45db2 | 356 | exec_file_command (char *args, int from_tty) |
c906108c | 357 | { |
1adeb98a FN |
358 | char **argv; |
359 | char *filename; | |
4c42eaff DJ |
360 | |
361 | if (from_tty && target_has_execution | |
362 | && !query (_("A program is being debugged already.\n" | |
363 | "Are you sure you want to change the file? "))) | |
364 | error (_("File not changed.")); | |
1adeb98a FN |
365 | |
366 | if (args) | |
367 | { | |
f7545552 TT |
368 | struct cleanup *cleanups; |
369 | ||
1adeb98a FN |
370 | /* Scan through the args and pick up the first non option arg |
371 | as the filename. */ | |
372 | ||
d1a41061 | 373 | argv = gdb_buildargv (args); |
f7545552 | 374 | cleanups = make_cleanup_freeargv (argv); |
1adeb98a FN |
375 | |
376 | for (; (*argv != NULL) && (**argv == '-'); argv++) | |
377 | {; | |
378 | } | |
379 | if (*argv == NULL) | |
8a3fe4f8 | 380 | error (_("No executable file name was specified")); |
1adeb98a FN |
381 | |
382 | filename = tilde_expand (*argv); | |
383 | make_cleanup (xfree, filename); | |
384 | exec_file_attach (filename, from_tty); | |
f7545552 TT |
385 | |
386 | do_cleanups (cleanups); | |
1adeb98a FN |
387 | } |
388 | else | |
389 | exec_file_attach (NULL, from_tty); | |
c906108c SS |
390 | } |
391 | ||
0963b4bd | 392 | /* Set both the exec file and the symbol file, in one command. |
c906108c SS |
393 | What a novelty. Why did GDB go through four major releases before this |
394 | command was added? */ | |
395 | ||
396 | static void | |
fba45db2 | 397 | file_command (char *arg, int from_tty) |
c906108c SS |
398 | { |
399 | /* FIXME, if we lose on reading the symbol file, we should revert | |
400 | the exec file, but that's rough. */ | |
401 | exec_file_command (arg, from_tty); | |
402 | symbol_file_command (arg, from_tty); | |
9a4105ab AC |
403 | if (deprecated_file_changed_hook) |
404 | deprecated_file_changed_hook (arg); | |
c906108c | 405 | } |
c906108c | 406 | \f |
c5aa993b | 407 | |
0963b4bd | 408 | /* Locate all mappable sections of a BFD file. |
c906108c SS |
409 | table_pp_char is a char * to get it through bfd_map_over_sections; |
410 | we cast it back to its proper type. */ | |
411 | ||
412 | static void | |
7be0c536 AC |
413 | add_to_section_table (bfd *abfd, struct bfd_section *asect, |
414 | void *table_pp_char) | |
c906108c | 415 | { |
0542c86d | 416 | struct target_section **table_pp = (struct target_section **) table_pp_char; |
c906108c SS |
417 | flagword aflag; |
418 | ||
2b2848e2 DE |
419 | gdb_assert (abfd == asect->owner); |
420 | ||
0f5d55d8 JB |
421 | /* Check the section flags, but do not discard zero-length sections, since |
422 | some symbols may still be attached to this section. For instance, we | |
423 | encountered on sparc-solaris 2.10 a shared library with an empty .bss | |
424 | section to which a symbol named "_end" was attached. The address | |
425 | of this symbol still needs to be relocated. */ | |
c906108c SS |
426 | aflag = bfd_get_section_flags (abfd, asect); |
427 | if (!(aflag & SEC_ALLOC)) | |
428 | return; | |
0f5d55d8 | 429 | |
046ac79f | 430 | (*table_pp)->owner = NULL; |
c906108c SS |
431 | (*table_pp)->the_bfd_section = asect; |
432 | (*table_pp)->addr = bfd_section_vma (abfd, asect); | |
433 | (*table_pp)->endaddr = (*table_pp)->addr + bfd_section_size (abfd, asect); | |
434 | (*table_pp)++; | |
435 | } | |
436 | ||
a5b1fd27 DE |
437 | /* See exec.h. */ |
438 | ||
439 | void | |
440 | clear_section_table (struct target_section_table *table) | |
441 | { | |
442 | xfree (table->sections); | |
443 | table->sections = table->sections_end = NULL; | |
444 | } | |
445 | ||
446 | /* Resize section table TABLE by ADJUSTMENT. | |
447 | ADJUSTMENT may be negative, in which case the caller must have already | |
448 | removed the sections being deleted. | |
449 | Returns the old size. */ | |
450 | ||
451 | static int | |
452 | resize_section_table (struct target_section_table *table, int adjustment) | |
07b82ea5 | 453 | { |
07b82ea5 PA |
454 | int old_count; |
455 | int new_count; | |
456 | ||
07b82ea5 PA |
457 | old_count = table->sections_end - table->sections; |
458 | ||
a5b1fd27 | 459 | new_count = adjustment + old_count; |
07b82ea5 PA |
460 | |
461 | if (new_count) | |
462 | { | |
463 | table->sections = xrealloc (table->sections, | |
464 | sizeof (struct target_section) * new_count); | |
465 | table->sections_end = table->sections + new_count; | |
466 | } | |
467 | else | |
a5b1fd27 | 468 | clear_section_table (table); |
07b82ea5 PA |
469 | |
470 | return old_count; | |
471 | } | |
472 | ||
c906108c SS |
473 | /* Builds a section table, given args BFD, SECTABLE_PTR, SECEND_PTR. |
474 | Returns 0 if OK, 1 on error. */ | |
475 | ||
476 | int | |
0542c86d PA |
477 | build_section_table (struct bfd *some_bfd, struct target_section **start, |
478 | struct target_section **end) | |
c906108c SS |
479 | { |
480 | unsigned count; | |
481 | ||
482 | count = bfd_count_sections (some_bfd); | |
483 | if (*start) | |
b8c9b27d | 484 | xfree (* start); |
0542c86d | 485 | *start = (struct target_section *) xmalloc (count * sizeof (**start)); |
c906108c | 486 | *end = *start; |
c5aa993b | 487 | bfd_map_over_sections (some_bfd, add_to_section_table, (char *) end); |
c906108c | 488 | if (*end > *start + count) |
3e43a32a MS |
489 | internal_error (__FILE__, __LINE__, |
490 | _("failed internal consistency check")); | |
c906108c SS |
491 | /* We could realloc the table, but it probably loses for most files. */ |
492 | return 0; | |
493 | } | |
07b82ea5 PA |
494 | |
495 | /* Add the sections array defined by [SECTIONS..SECTIONS_END[ to the | |
496 | current set of target sections. */ | |
497 | ||
498 | void | |
046ac79f | 499 | add_target_sections (void *owner, |
ed9eebaf | 500 | struct target_section *sections, |
07b82ea5 PA |
501 | struct target_section *sections_end) |
502 | { | |
503 | int count; | |
504 | struct target_section_table *table = current_target_sections; | |
505 | ||
506 | count = sections_end - sections; | |
507 | ||
508 | if (count > 0) | |
509 | { | |
510 | int space = resize_section_table (table, count); | |
ed9eebaf | 511 | int i; |
d7f9d729 | 512 | |
ed9eebaf TT |
513 | for (i = 0; i < count; ++i) |
514 | { | |
515 | table->sections[space + i] = sections[i]; | |
046ac79f | 516 | table->sections[space + i].owner = owner; |
ed9eebaf | 517 | } |
07b82ea5 PA |
518 | |
519 | /* If these are the first file sections we can provide memory | |
520 | from, push the file_stratum target. */ | |
ab16fce8 TT |
521 | if (!target_is_pushed (&exec_ops)) |
522 | push_target (&exec_ops); | |
07b82ea5 PA |
523 | } |
524 | } | |
525 | ||
76ad5e1e NB |
526 | /* Add the sections of OBJFILE to the current set of target sections. */ |
527 | ||
528 | void | |
529 | add_target_sections_of_objfile (struct objfile *objfile) | |
530 | { | |
531 | struct target_section_table *table = current_target_sections; | |
532 | struct obj_section *osect; | |
533 | int space; | |
534 | unsigned count = 0; | |
535 | struct target_section *ts; | |
536 | ||
537 | if (objfile == NULL) | |
538 | return; | |
539 | ||
540 | /* Compute the number of sections to add. */ | |
541 | ALL_OBJFILE_OSECTIONS (objfile, osect) | |
542 | { | |
543 | if (bfd_get_section_size (osect->the_bfd_section) == 0) | |
544 | continue; | |
545 | count++; | |
546 | } | |
547 | ||
548 | if (count == 0) | |
549 | return; | |
550 | ||
551 | space = resize_section_table (table, count); | |
552 | ||
553 | ts = table->sections + space; | |
554 | ||
555 | ALL_OBJFILE_OSECTIONS (objfile, osect) | |
556 | { | |
557 | if (bfd_get_section_size (osect->the_bfd_section) == 0) | |
558 | continue; | |
559 | ||
560 | gdb_assert (ts < table->sections + space + count); | |
561 | ||
562 | ts->addr = obj_section_addr (osect); | |
563 | ts->endaddr = obj_section_endaddr (osect); | |
564 | ts->the_bfd_section = osect->the_bfd_section; | |
565 | ts->owner = (void *) objfile; | |
566 | ||
567 | ts++; | |
568 | } | |
569 | } | |
570 | ||
046ac79f JK |
571 | /* Remove all target sections owned by OWNER. |
572 | OWNER must be the same value passed to add_target_sections. */ | |
07b82ea5 PA |
573 | |
574 | void | |
046ac79f | 575 | remove_target_sections (void *owner) |
07b82ea5 PA |
576 | { |
577 | struct target_section *src, *dest; | |
07b82ea5 PA |
578 | struct target_section_table *table = current_target_sections; |
579 | ||
046ac79f JK |
580 | gdb_assert (owner != NULL); |
581 | ||
07b82ea5 PA |
582 | dest = table->sections; |
583 | for (src = table->sections; src < table->sections_end; src++) | |
046ac79f | 584 | if (src->owner != owner) |
07b82ea5 PA |
585 | { |
586 | /* Keep this section. */ | |
587 | if (dest < src) | |
588 | *dest = *src; | |
589 | dest++; | |
590 | } | |
591 | ||
592 | /* If we've dropped any sections, resize the section table. */ | |
593 | if (dest < src) | |
594 | { | |
595 | int old_count; | |
596 | ||
597 | old_count = resize_section_table (table, dest - src); | |
598 | ||
599 | /* If we don't have any more sections to read memory from, | |
600 | remove the file_stratum target from the stack. */ | |
601 | if (old_count + (dest - src) == 0) | |
6c95b8df PA |
602 | { |
603 | struct program_space *pspace; | |
604 | ||
605 | ALL_PSPACES (pspace) | |
606 | if (pspace->target_sections.sections | |
607 | != pspace->target_sections.sections_end) | |
608 | return; | |
609 | ||
610 | unpush_target (&exec_ops); | |
611 | } | |
07b82ea5 PA |
612 | } |
613 | } | |
614 | ||
c906108c | 615 | \f |
348f8c02 | 616 | |
1ca49d37 YQ |
617 | enum target_xfer_status |
618 | exec_read_partial_read_only (gdb_byte *readbuf, ULONGEST offset, | |
619 | ULONGEST len, ULONGEST *xfered_len) | |
620 | { | |
621 | /* It's unduly pedantic to refuse to look at the executable for | |
622 | read-only pieces; so do the equivalent of readonly regions aka | |
623 | QTro packet. */ | |
624 | if (exec_bfd != NULL) | |
625 | { | |
626 | asection *s; | |
627 | bfd_size_type size; | |
628 | bfd_vma vma; | |
629 | ||
630 | for (s = exec_bfd->sections; s; s = s->next) | |
631 | { | |
632 | if ((s->flags & SEC_LOAD) == 0 | |
633 | || (s->flags & SEC_READONLY) == 0) | |
634 | continue; | |
635 | ||
636 | vma = s->vma; | |
637 | size = bfd_get_section_size (s); | |
638 | if (vma <= offset && offset < (vma + size)) | |
639 | { | |
640 | ULONGEST amt; | |
641 | ||
642 | amt = (vma + size) - offset; | |
643 | if (amt > len) | |
644 | amt = len; | |
645 | ||
646 | amt = bfd_get_section_contents (exec_bfd, s, | |
647 | readbuf, offset - vma, amt); | |
648 | ||
649 | if (amt == 0) | |
650 | return TARGET_XFER_EOF; | |
651 | else | |
652 | { | |
653 | *xfered_len = amt; | |
654 | return TARGET_XFER_OK; | |
655 | } | |
656 | } | |
657 | } | |
658 | } | |
659 | ||
660 | /* Indicate failure to find the requested memory block. */ | |
661 | return TARGET_XFER_E_IO; | |
662 | } | |
663 | ||
5a2eb0ef YQ |
664 | /* Appends all read-only memory ranges found in the target section |
665 | table defined by SECTIONS and SECTIONS_END, starting at (and | |
666 | intersected with) MEMADDR for LEN bytes. Returns the augmented | |
667 | VEC. */ | |
668 | ||
669 | static VEC(mem_range_s) * | |
e6ca34fc | 670 | section_table_available_memory (VEC(mem_range_s) *memory, |
424447ee | 671 | CORE_ADDR memaddr, ULONGEST len, |
e6ca34fc PA |
672 | struct target_section *sections, |
673 | struct target_section *sections_end) | |
674 | { | |
675 | struct target_section *p; | |
e6ca34fc PA |
676 | |
677 | for (p = sections; p < sections_end; p++) | |
678 | { | |
2b2848e2 DE |
679 | if ((bfd_get_section_flags (p->the_bfd_section->owner, |
680 | p->the_bfd_section) | |
e6ca34fc PA |
681 | & SEC_READONLY) == 0) |
682 | continue; | |
683 | ||
684 | /* Copy the meta-data, adjusted. */ | |
685 | if (mem_ranges_overlap (p->addr, p->endaddr - p->addr, memaddr, len)) | |
686 | { | |
687 | ULONGEST lo1, hi1, lo2, hi2; | |
688 | struct mem_range *r; | |
689 | ||
690 | lo1 = memaddr; | |
691 | hi1 = memaddr + len; | |
692 | ||
693 | lo2 = p->addr; | |
694 | hi2 = p->endaddr; | |
695 | ||
696 | r = VEC_safe_push (mem_range_s, memory, NULL); | |
697 | ||
698 | r->start = max (lo1, lo2); | |
699 | r->length = min (hi1, hi2) - r->start; | |
700 | } | |
701 | } | |
702 | ||
703 | return memory; | |
704 | } | |
705 | ||
1ee79381 YQ |
706 | enum target_xfer_status |
707 | section_table_read_available_memory (gdb_byte *readbuf, ULONGEST offset, | |
708 | ULONGEST len, ULONGEST *xfered_len) | |
709 | { | |
710 | VEC(mem_range_s) *available_memory = NULL; | |
711 | struct target_section_table *table; | |
712 | struct cleanup *old_chain; | |
713 | mem_range_s *r; | |
714 | int i; | |
715 | ||
716 | table = target_get_section_table (&exec_ops); | |
717 | available_memory = section_table_available_memory (available_memory, | |
718 | offset, len, | |
719 | table->sections, | |
720 | table->sections_end); | |
721 | ||
722 | old_chain = make_cleanup (VEC_cleanup(mem_range_s), | |
723 | &available_memory); | |
724 | ||
725 | normalize_mem_ranges (available_memory); | |
726 | ||
727 | for (i = 0; | |
728 | VEC_iterate (mem_range_s, available_memory, i, r); | |
729 | i++) | |
730 | { | |
731 | if (mem_ranges_overlap (r->start, r->length, offset, len)) | |
732 | { | |
733 | CORE_ADDR end; | |
734 | enum target_xfer_status status; | |
735 | ||
736 | /* Get the intersection window. */ | |
737 | end = min (offset + len, r->start + r->length); | |
738 | ||
739 | gdb_assert (end - offset <= len); | |
740 | ||
741 | if (offset >= r->start) | |
742 | status = exec_read_partial_read_only (readbuf, offset, | |
743 | end - offset, | |
744 | xfered_len); | |
745 | else | |
746 | { | |
747 | *xfered_len = r->start - offset; | |
bc113b4e | 748 | status = TARGET_XFER_UNAVAILABLE; |
1ee79381 YQ |
749 | } |
750 | do_cleanups (old_chain); | |
751 | return status; | |
752 | } | |
753 | } | |
754 | do_cleanups (old_chain); | |
755 | ||
756 | *xfered_len = len; | |
bc113b4e | 757 | return TARGET_XFER_UNAVAILABLE; |
1ee79381 YQ |
758 | } |
759 | ||
9b409511 | 760 | enum target_xfer_status |
07b82ea5 | 761 | section_table_xfer_memory_partial (gdb_byte *readbuf, const gdb_byte *writebuf, |
b55e14c7 | 762 | ULONGEST offset, ULONGEST len, |
9b409511 | 763 | ULONGEST *xfered_len, |
07b82ea5 PA |
764 | struct target_section *sections, |
765 | struct target_section *sections_end, | |
766 | const char *section_name) | |
c906108c | 767 | { |
020cc13c | 768 | int res; |
0542c86d | 769 | struct target_section *p; |
07b82ea5 PA |
770 | ULONGEST memaddr = offset; |
771 | ULONGEST memend = memaddr + len; | |
c906108c | 772 | |
b55e14c7 | 773 | if (len == 0) |
3e43a32a MS |
774 | internal_error (__FILE__, __LINE__, |
775 | _("failed internal consistency check")); | |
c906108c | 776 | |
348f8c02 | 777 | for (p = sections; p < sections_end; p++) |
c906108c | 778 | { |
2b2848e2 DE |
779 | struct bfd_section *asect = p->the_bfd_section; |
780 | bfd *abfd = asect->owner; | |
781 | ||
782 | if (section_name && strcmp (section_name, asect->name) != 0) | |
0963b4bd | 783 | continue; /* not the section we need. */ |
c906108c | 784 | if (memaddr >= p->addr) |
3db26b01 JB |
785 | { |
786 | if (memend <= p->endaddr) | |
787 | { | |
788 | /* Entire transfer is within this section. */ | |
07b82ea5 | 789 | if (writebuf) |
2b2848e2 | 790 | res = bfd_set_section_contents (abfd, asect, |
07b82ea5 | 791 | writebuf, memaddr - p->addr, |
85302095 AC |
792 | len); |
793 | else | |
2b2848e2 | 794 | res = bfd_get_section_contents (abfd, asect, |
07b82ea5 | 795 | readbuf, memaddr - p->addr, |
85302095 | 796 | len); |
9b409511 YQ |
797 | |
798 | if (res != 0) | |
799 | { | |
800 | *xfered_len = len; | |
801 | return TARGET_XFER_OK; | |
802 | } | |
803 | else | |
804 | return TARGET_XFER_EOF; | |
3db26b01 JB |
805 | } |
806 | else if (memaddr >= p->endaddr) | |
807 | { | |
808 | /* This section ends before the transfer starts. */ | |
809 | continue; | |
810 | } | |
811 | else | |
812 | { | |
813 | /* This section overlaps the transfer. Just do half. */ | |
814 | len = p->endaddr - memaddr; | |
07b82ea5 | 815 | if (writebuf) |
2b2848e2 | 816 | res = bfd_set_section_contents (abfd, asect, |
07b82ea5 | 817 | writebuf, memaddr - p->addr, |
85302095 AC |
818 | len); |
819 | else | |
2b2848e2 | 820 | res = bfd_get_section_contents (abfd, asect, |
07b82ea5 | 821 | readbuf, memaddr - p->addr, |
85302095 | 822 | len); |
9b409511 YQ |
823 | if (res != 0) |
824 | { | |
825 | *xfered_len = len; | |
826 | return TARGET_XFER_OK; | |
827 | } | |
828 | else | |
829 | return TARGET_XFER_EOF; | |
3db26b01 JB |
830 | } |
831 | } | |
c906108c SS |
832 | } |
833 | ||
9b409511 | 834 | return TARGET_XFER_EOF; /* We can't help. */ |
c906108c | 835 | } |
348f8c02 | 836 | |
70221824 | 837 | static struct target_section_table * |
07b82ea5 | 838 | exec_get_section_table (struct target_ops *ops) |
348f8c02 | 839 | { |
07b82ea5 | 840 | return current_target_sections; |
348f8c02 PA |
841 | } |
842 | ||
9b409511 | 843 | static enum target_xfer_status |
07b82ea5 PA |
844 | exec_xfer_partial (struct target_ops *ops, enum target_object object, |
845 | const char *annex, gdb_byte *readbuf, | |
846 | const gdb_byte *writebuf, | |
9b409511 | 847 | ULONGEST offset, ULONGEST len, ULONGEST *xfered_len) |
348f8c02 | 848 | { |
07b82ea5 PA |
849 | struct target_section_table *table = target_get_section_table (ops); |
850 | ||
851 | if (object == TARGET_OBJECT_MEMORY) | |
852 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 853 | offset, len, xfered_len, |
07b82ea5 PA |
854 | table->sections, |
855 | table->sections_end, | |
856 | NULL); | |
857 | else | |
2ed4b548 | 858 | return TARGET_XFER_E_IO; |
348f8c02 | 859 | } |
c906108c | 860 | \f |
c5aa993b | 861 | |
c906108c | 862 | void |
07b82ea5 | 863 | print_section_info (struct target_section_table *t, bfd *abfd) |
c906108c | 864 | { |
5af949e3 | 865 | struct gdbarch *gdbarch = gdbarch_from_bfd (abfd); |
0542c86d | 866 | struct target_section *p; |
17a912b6 | 867 | /* FIXME: 16 is not wide enough when gdbarch_addr_bit > 64. */ |
5af949e3 | 868 | int wid = gdbarch_addr_bit (gdbarch) <= 32 ? 8 : 16; |
c906108c | 869 | |
c5aa993b | 870 | printf_filtered ("\t`%s', ", bfd_get_filename (abfd)); |
c906108c | 871 | wrap_here (" "); |
a3f17187 | 872 | printf_filtered (_("file type %s.\n"), bfd_get_target (abfd)); |
c906108c | 873 | if (abfd == exec_bfd) |
51bee8e9 | 874 | { |
3e43a32a MS |
875 | /* gcc-3.4 does not like the initialization in |
876 | <p == t->sections_end>. */ | |
d904de5b | 877 | bfd_vma displacement = 0; |
2f1bdd26 | 878 | bfd_vma entry_point; |
51bee8e9 JK |
879 | |
880 | for (p = t->sections; p < t->sections_end; p++) | |
881 | { | |
2b2848e2 DE |
882 | struct bfd_section *psect = p->the_bfd_section; |
883 | bfd *pbfd = psect->owner; | |
51bee8e9 | 884 | |
2b2848e2 | 885 | if ((bfd_get_section_flags (pbfd, psect) & (SEC_ALLOC | SEC_LOAD)) |
51bee8e9 JK |
886 | != (SEC_ALLOC | SEC_LOAD)) |
887 | continue; | |
888 | ||
2b2848e2 DE |
889 | if (bfd_get_section_vma (pbfd, psect) <= abfd->start_address |
890 | && abfd->start_address < (bfd_get_section_vma (pbfd, psect) | |
891 | + bfd_get_section_size (psect))) | |
51bee8e9 | 892 | { |
2b2848e2 | 893 | displacement = p->addr - bfd_get_section_vma (pbfd, psect); |
51bee8e9 JK |
894 | break; |
895 | } | |
896 | } | |
897 | if (p == t->sections_end) | |
b37520b6 | 898 | warning (_("Cannot find section for the entry point of %s."), |
d904de5b | 899 | bfd_get_filename (abfd)); |
51bee8e9 | 900 | |
2f1bdd26 MGD |
901 | entry_point = gdbarch_addr_bits_remove (gdbarch, |
902 | bfd_get_start_address (abfd) | |
903 | + displacement); | |
51bee8e9 | 904 | printf_filtered (_("\tEntry point: %s\n"), |
2f1bdd26 | 905 | paddress (gdbarch, entry_point)); |
51bee8e9 | 906 | } |
07b82ea5 | 907 | for (p = t->sections; p < t->sections_end; p++) |
c906108c | 908 | { |
2b2848e2 DE |
909 | struct bfd_section *psect = p->the_bfd_section; |
910 | bfd *pbfd = psect->owner; | |
911 | ||
bb599908 PH |
912 | printf_filtered ("\t%s", hex_string_custom (p->addr, wid)); |
913 | printf_filtered (" - %s", hex_string_custom (p->endaddr, wid)); | |
bcf16802 KB |
914 | |
915 | /* FIXME: A format of "08l" is not wide enough for file offsets | |
916 | larger than 4GB. OTOH, making it "016l" isn't desirable either | |
917 | since most output will then be much wider than necessary. It | |
918 | may make sense to test the size of the file and choose the | |
919 | format string accordingly. */ | |
a3f17187 | 920 | /* FIXME: i18n: Need to rewrite this sentence. */ |
c906108c SS |
921 | if (info_verbose) |
922 | printf_filtered (" @ %s", | |
2b2848e2 DE |
923 | hex_string_custom (psect->filepos, 8)); |
924 | printf_filtered (" is %s", bfd_section_name (pbfd, psect)); | |
925 | if (pbfd != abfd) | |
926 | printf_filtered (" in %s", bfd_get_filename (pbfd)); | |
c906108c SS |
927 | printf_filtered ("\n"); |
928 | } | |
929 | } | |
930 | ||
931 | static void | |
fba45db2 | 932 | exec_files_info (struct target_ops *t) |
c906108c | 933 | { |
57008375 JK |
934 | if (exec_bfd) |
935 | print_section_info (current_target_sections, exec_bfd); | |
936 | else | |
937 | puts_filtered (_("\t<no file loaded>\n")); | |
c906108c SS |
938 | } |
939 | ||
940 | static void | |
fba45db2 | 941 | set_section_command (char *args, int from_tty) |
c906108c | 942 | { |
0542c86d | 943 | struct target_section *p; |
c906108c SS |
944 | char *secname; |
945 | unsigned seclen; | |
946 | unsigned long secaddr; | |
947 | char secprint[100]; | |
948 | long offset; | |
07b82ea5 | 949 | struct target_section_table *table; |
c906108c SS |
950 | |
951 | if (args == 0) | |
8a3fe4f8 | 952 | error (_("Must specify section name and its virtual address")); |
c906108c | 953 | |
0963b4bd | 954 | /* Parse out section name. */ |
c5aa993b | 955 | for (secname = args; !isspace (*args); args++); |
c906108c SS |
956 | seclen = args - secname; |
957 | ||
0963b4bd | 958 | /* Parse out new virtual address. */ |
c906108c SS |
959 | secaddr = parse_and_eval_address (args); |
960 | ||
07b82ea5 PA |
961 | table = current_target_sections; |
962 | for (p = table->sections; p < table->sections_end; p++) | |
c5aa993b | 963 | { |
57008375 | 964 | if (!strncmp (secname, bfd_section_name (p->bfd, |
3e43a32a | 965 | p->the_bfd_section), seclen) |
57008375 | 966 | && bfd_section_name (p->bfd, p->the_bfd_section)[seclen] == '\0') |
c5aa993b JM |
967 | { |
968 | offset = secaddr - p->addr; | |
969 | p->addr += offset; | |
970 | p->endaddr += offset; | |
971 | if (from_tty) | |
972 | exec_files_info (&exec_ops); | |
973 | return; | |
974 | } | |
c906108c | 975 | } |
c906108c SS |
976 | if (seclen >= sizeof (secprint)) |
977 | seclen = sizeof (secprint) - 1; | |
978 | strncpy (secprint, secname, seclen); | |
979 | secprint[seclen] = '\0'; | |
8a3fe4f8 | 980 | error (_("Section %s not found"), secprint); |
c906108c SS |
981 | } |
982 | ||
30510692 DJ |
983 | /* If we can find a section in FILENAME with BFD index INDEX, adjust |
984 | it to ADDRESS. */ | |
c1bd25fd DJ |
985 | |
986 | void | |
987 | exec_set_section_address (const char *filename, int index, CORE_ADDR address) | |
988 | { | |
0542c86d | 989 | struct target_section *p; |
07b82ea5 | 990 | struct target_section_table *table; |
c1bd25fd | 991 | |
07b82ea5 PA |
992 | table = current_target_sections; |
993 | for (p = table->sections; p < table->sections_end; p++) | |
c1bd25fd | 994 | { |
2b2848e2 | 995 | if (filename_cmp (filename, p->the_bfd_section->owner->filename) == 0 |
30510692 | 996 | && index == p->the_bfd_section->index) |
c1bd25fd | 997 | { |
30510692 | 998 | p->endaddr += address - p->addr; |
c1bd25fd | 999 | p->addr = address; |
c1bd25fd DJ |
1000 | } |
1001 | } | |
1002 | } | |
1003 | ||
c906108c SS |
1004 | /* If mourn is being called in all the right places, this could be say |
1005 | `gdb internal error' (since generic_mourn calls | |
1006 | breakpoint_init_inferior). */ | |
1007 | ||
1008 | static int | |
3db08215 MM |
1009 | ignore (struct target_ops *ops, struct gdbarch *gdbarch, |
1010 | struct bp_target_info *bp_tgt) | |
c906108c SS |
1011 | { |
1012 | return 0; | |
1013 | } | |
1014 | ||
c35b1492 PA |
1015 | static int |
1016 | exec_has_memory (struct target_ops *ops) | |
1017 | { | |
1018 | /* We can provide memory if we have any file/target sections to read | |
1019 | from. */ | |
1020 | return (current_target_sections->sections | |
1021 | != current_target_sections->sections_end); | |
1022 | } | |
1023 | ||
83814951 TT |
1024 | static char * |
1025 | exec_make_note_section (struct target_ops *self, bfd *obfd, int *note_size) | |
1026 | { | |
1027 | error (_("Can't create a corefile")); | |
1028 | } | |
be4d1333 | 1029 | |
c906108c SS |
1030 | /* Fill in the exec file target vector. Very few entries need to be |
1031 | defined. */ | |
1032 | ||
be4d1333 | 1033 | static void |
fba45db2 | 1034 | init_exec_ops (void) |
c906108c SS |
1035 | { |
1036 | exec_ops.to_shortname = "exec"; | |
1037 | exec_ops.to_longname = "Local exec file"; | |
1038 | exec_ops.to_doc = "Use an executable file as a target.\n\ | |
1039 | Specify the filename of the executable file."; | |
1adeb98a | 1040 | exec_ops.to_open = exec_open; |
6c95b8df | 1041 | exec_ops.to_close = exec_close_1; |
07b82ea5 PA |
1042 | exec_ops.to_xfer_partial = exec_xfer_partial; |
1043 | exec_ops.to_get_section_table = exec_get_section_table; | |
c906108c SS |
1044 | exec_ops.to_files_info = exec_files_info; |
1045 | exec_ops.to_insert_breakpoint = ignore; | |
1046 | exec_ops.to_remove_breakpoint = ignore; | |
c906108c | 1047 | exec_ops.to_stratum = file_stratum; |
c35b1492 | 1048 | exec_ops.to_has_memory = exec_has_memory; |
be4d1333 | 1049 | exec_ops.to_make_corefile_notes = exec_make_note_section; |
b427c1bc | 1050 | exec_ops.to_find_memory_regions = objfile_find_memory_regions; |
c5aa993b | 1051 | exec_ops.to_magic = OPS_MAGIC; |
c906108c SS |
1052 | } |
1053 | ||
1054 | void | |
fba45db2 | 1055 | _initialize_exec (void) |
c906108c SS |
1056 | { |
1057 | struct cmd_list_element *c; | |
1058 | ||
1059 | init_exec_ops (); | |
1060 | ||
1061 | if (!dbx_commands) | |
1062 | { | |
1a966eab AC |
1063 | c = add_cmd ("file", class_files, file_command, _("\ |
1064 | Use FILE as program to be debugged.\n\ | |
c906108c SS |
1065 | It is read for its symbols, for getting the contents of pure memory,\n\ |
1066 | and it is the program executed when you use the `run' command.\n\ | |
1067 | If FILE cannot be found as specified, your execution directory path\n\ | |
1068 | ($PATH) is searched for a command of that name.\n\ | |
1a966eab | 1069 | No arg means to have no executable file and no symbols."), &cmdlist); |
5ba2abeb | 1070 | set_cmd_completer (c, filename_completer); |
c906108c SS |
1071 | } |
1072 | ||
1a966eab AC |
1073 | c = add_cmd ("exec-file", class_files, exec_file_command, _("\ |
1074 | Use FILE as program for getting contents of pure memory.\n\ | |
c906108c SS |
1075 | If FILE cannot be found as specified, your execution directory path\n\ |
1076 | is searched for a command of that name.\n\ | |
1a966eab | 1077 | No arg means have no executable file."), &cmdlist); |
5ba2abeb | 1078 | set_cmd_completer (c, filename_completer); |
c906108c | 1079 | |
1bedd215 AC |
1080 | add_com ("section", class_files, set_section_command, _("\ |
1081 | Change the base address of section SECTION of the exec file to ADDR.\n\ | |
c906108c SS |
1082 | This can be used if the exec file does not contain section addresses,\n\ |
1083 | (such as in the a.out format), or when the addresses specified in the\n\ | |
1084 | file itself are wrong. Each section must be changed separately. The\n\ | |
1bedd215 | 1085 | ``info files'' command lists all the sections and their addresses.")); |
c906108c | 1086 | |
5bf193a2 AC |
1087 | add_setshow_boolean_cmd ("write", class_support, &write_files, _("\ |
1088 | Set writing into executable and core files."), _("\ | |
1089 | Show writing into executable and core files."), NULL, | |
1090 | NULL, | |
920d2a44 | 1091 | show_write_files, |
5bf193a2 | 1092 | &setlist, &showlist); |
c5aa993b | 1093 | |
9852c492 | 1094 | add_target_with_completer (&exec_ops, filename_completer); |
c906108c | 1095 | } |