Commit | Line | Data |
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c906108c | 1 | /* Work with executable files, for GDB. |
4646aa9d | 2 | |
618f726f | 3 | Copyright (C) 1988-2016 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; | |
88178e82 | 144 | struct cleanup *old_chain; |
a10de604 GB |
145 | |
146 | /* Do nothing if we already have an executable filename. */ | |
147 | exec_file = (char *) get_exec_file (0); | |
148 | if (exec_file != NULL) | |
149 | return; | |
150 | ||
151 | /* Try to determine a filename from the process itself. */ | |
152 | exec_file = target_pid_to_exec_file (pid); | |
153 | if (exec_file == NULL) | |
fef3cb9f JK |
154 | { |
155 | warning (_("No executable has been specified and target does not " | |
156 | "support\n" | |
157 | "determining executable automatically. " | |
158 | "Try using the \"file\" command.")); | |
159 | return; | |
160 | } | |
a10de604 | 161 | |
a9a5a3d1 GB |
162 | /* If gdb_sysroot is not empty and the discovered filename |
163 | is absolute then prefix the filename with gdb_sysroot. */ | |
a3be80c3 | 164 | if (*gdb_sysroot != '\0' && IS_ABSOLUTE_PATH (exec_file)) |
bf74e428 GB |
165 | { |
166 | full_exec_path = exec_file_find (exec_file, NULL); | |
167 | if (full_exec_path == NULL) | |
168 | return; | |
169 | } | |
170 | else | |
a9a5a3d1 GB |
171 | { |
172 | /* It's possible we don't have a full path, but rather just a | |
173 | filename. Some targets, such as HP-UX, don't provide the | |
174 | full path, sigh. | |
175 | ||
176 | Attempt to qualify the filename against the source path. | |
177 | (If that fails, we'll just fall back on the original | |
178 | filename. Not much more we can do...) */ | |
179 | if (!source_full_path_of (exec_file, &full_exec_path)) | |
180 | full_exec_path = xstrdup (exec_file); | |
181 | } | |
a10de604 | 182 | |
88178e82 GB |
183 | old_chain = make_cleanup (xfree, full_exec_path); |
184 | ||
a10de604 GB |
185 | exec_file_attach (full_exec_path, from_tty); |
186 | symbol_file_add_main (full_exec_path, from_tty); | |
88178e82 GB |
187 | |
188 | do_cleanups (old_chain); | |
a10de604 GB |
189 | } |
190 | ||
907083d1 | 191 | /* Set FILENAME as the new exec file. |
c906108c | 192 | |
c5aa993b JM |
193 | This function is intended to be behave essentially the same |
194 | as exec_file_command, except that the latter will detect when | |
195 | a target is being debugged, and will ask the user whether it | |
196 | should be shut down first. (If the answer is "no", then the | |
197 | new file is ignored.) | |
c906108c | 198 | |
c5aa993b JM |
199 | This file is used by exec_file_command, to do the work of opening |
200 | and processing the exec file after any prompting has happened. | |
c906108c | 201 | |
c5aa993b JM |
202 | And, it is used by child_attach, when the attach command was |
203 | given a pid but not a exec pathname, and the attach command could | |
204 | figure out the pathname from the pid. (In this case, we shouldn't | |
205 | ask the user whether the current target should be shut down -- | |
907083d1 | 206 | we're supplying the exec pathname late for good reason.) */ |
c906108c SS |
207 | |
208 | void | |
5f08566b | 209 | exec_file_attach (const char *filename, int from_tty) |
c906108c | 210 | { |
9b333ba3 TT |
211 | struct cleanup *cleanups; |
212 | ||
213 | /* First, acquire a reference to the current exec_bfd. We release | |
214 | this at the end of the function; but acquiring it now lets the | |
215 | BFD cache return it if this call refers to the same file. */ | |
216 | gdb_bfd_ref (exec_bfd); | |
217 | cleanups = make_cleanup_bfd_unref (exec_bfd); | |
218 | ||
c906108c | 219 | /* Remove any previous exec file. */ |
6c95b8df | 220 | exec_close (); |
c906108c SS |
221 | |
222 | /* Now open and digest the file the user requested, if any. */ | |
223 | ||
1adeb98a FN |
224 | if (!filename) |
225 | { | |
226 | if (from_tty) | |
a3f17187 | 227 | printf_unfiltered (_("No executable file now.\n")); |
7a107747 DJ |
228 | |
229 | set_gdbarch_from_file (NULL); | |
1adeb98a FN |
230 | } |
231 | else | |
c906108c | 232 | { |
64c0b5de | 233 | int load_via_target = 0; |
1f0c4988 | 234 | char *scratch_pathname, *canonical_pathname; |
c906108c | 235 | int scratch_chan; |
07b82ea5 | 236 | struct target_section *sections = NULL, *sections_end = NULL; |
d18b8b7a | 237 | char **matching; |
c5aa993b | 238 | |
64c0b5de GB |
239 | if (is_target_filename (filename)) |
240 | { | |
241 | if (target_filesystem_is_local ()) | |
242 | filename += strlen (TARGET_SYSROOT_PREFIX); | |
243 | else | |
244 | load_via_target = 1; | |
245 | } | |
246 | ||
247 | if (load_via_target) | |
c5aa993b | 248 | { |
64c0b5de GB |
249 | /* gdb_bfd_fopen does not support "target:" filenames. */ |
250 | if (write_files) | |
251 | warning (_("writing into executable files is " | |
252 | "not supported for %s sysroots"), | |
253 | TARGET_SYSROOT_PREFIX); | |
254 | ||
255 | scratch_pathname = xstrdup (filename); | |
256 | make_cleanup (xfree, scratch_pathname); | |
257 | ||
258 | scratch_chan = -1; | |
d7f9d729 | 259 | |
64c0b5de | 260 | canonical_pathname = scratch_pathname; |
c5aa993b | 261 | } |
64c0b5de GB |
262 | else |
263 | { | |
264 | scratch_chan = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, | |
265 | filename, write_files ? | |
266 | O_RDWR | O_BINARY : O_RDONLY | O_BINARY, | |
267 | &scratch_pathname); | |
268 | #if defined(__GO32__) || defined(_WIN32) || defined(__CYGWIN__) | |
269 | if (scratch_chan < 0) | |
270 | { | |
0ae1c716 | 271 | char *exename = (char *) alloca (strlen (filename) + 5); |
64c0b5de GB |
272 | |
273 | strcat (strcpy (exename, filename), ".exe"); | |
274 | scratch_chan = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, | |
275 | exename, write_files ? | |
276 | O_RDWR | O_BINARY | |
277 | : O_RDONLY | O_BINARY, | |
278 | &scratch_pathname); | |
279 | } | |
c906108c | 280 | #endif |
64c0b5de GB |
281 | if (scratch_chan < 0) |
282 | perror_with_name (filename); | |
a4453b7e | 283 | |
64c0b5de | 284 | make_cleanup (xfree, scratch_pathname); |
a4453b7e | 285 | |
64c0b5de GB |
286 | /* gdb_bfd_open (and its variants) prefers canonicalized |
287 | pathname for better BFD caching. */ | |
288 | canonical_pathname = gdb_realpath (scratch_pathname); | |
289 | make_cleanup (xfree, canonical_pathname); | |
290 | } | |
1f0c4988 | 291 | |
64c0b5de | 292 | if (write_files && !load_via_target) |
1f0c4988 | 293 | exec_bfd = gdb_bfd_fopen (canonical_pathname, gnutarget, |
1c00ec6b TT |
294 | FOPEN_RUB, scratch_chan); |
295 | else | |
1f0c4988 | 296 | exec_bfd = gdb_bfd_open (canonical_pathname, gnutarget, scratch_chan); |
c906108c SS |
297 | |
298 | if (!exec_bfd) | |
9fe4a216 | 299 | { |
d5131498 | 300 | error (_("\"%s\": could not open as an executable file: %s."), |
9fe4a216 TT |
301 | scratch_pathname, bfd_errmsg (bfd_get_error ())); |
302 | } | |
c906108c | 303 | |
64c0b5de GB |
304 | /* gdb_realpath_keepfile resolves symlinks on the local |
305 | filesystem and so cannot be used for "target:" files. */ | |
1f0c4988 | 306 | gdb_assert (exec_filename == NULL); |
64c0b5de GB |
307 | if (load_via_target) |
308 | exec_filename = xstrdup (bfd_get_filename (exec_bfd)); | |
309 | else | |
310 | exec_filename = gdb_realpath_keepfile (scratch_pathname); | |
1f0c4988 | 311 | |
d18b8b7a | 312 | if (!bfd_check_format_matches (exec_bfd, bfd_object, &matching)) |
c906108c SS |
313 | { |
314 | /* Make sure to close exec_bfd, or else "run" might try to use | |
315 | it. */ | |
6c95b8df | 316 | exec_close (); |
8a3fe4f8 | 317 | error (_("\"%s\": not in executable format: %s"), |
d18b8b7a HZ |
318 | scratch_pathname, |
319 | gdb_bfd_errmsg (bfd_get_error (), matching)); | |
c906108c SS |
320 | } |
321 | ||
07b82ea5 | 322 | if (build_section_table (exec_bfd, §ions, §ions_end)) |
c906108c SS |
323 | { |
324 | /* Make sure to close exec_bfd, or else "run" might try to use | |
325 | it. */ | |
6c95b8df | 326 | exec_close (); |
8a3fe4f8 | 327 | error (_("\"%s\": can't find the file sections: %s"), |
c906108c SS |
328 | scratch_pathname, bfd_errmsg (bfd_get_error ())); |
329 | } | |
330 | ||
c04ea773 DJ |
331 | exec_bfd_mtime = bfd_get_mtime (exec_bfd); |
332 | ||
c906108c SS |
333 | validate_files (); |
334 | ||
335 | set_gdbarch_from_file (exec_bfd); | |
336 | ||
07b82ea5 | 337 | /* Add the executable's sections to the current address spaces' |
6c95b8df PA |
338 | list of sections. This possibly pushes the exec_ops |
339 | target. */ | |
ed9eebaf | 340 | add_target_sections (&exec_bfd, sections, sections_end); |
07b82ea5 | 341 | xfree (sections); |
c906108c SS |
342 | |
343 | /* Tell display code (if any) about the changed file name. */ | |
9a4105ab AC |
344 | if (deprecated_exec_file_display_hook) |
345 | (*deprecated_exec_file_display_hook) (filename); | |
c906108c | 346 | } |
9b333ba3 TT |
347 | |
348 | do_cleanups (cleanups); | |
349 | ||
ce7d4522 | 350 | bfd_cache_close_all (); |
781b42b0 | 351 | observer_notify_executable_changed (); |
c906108c SS |
352 | } |
353 | ||
354 | /* Process the first arg in ARGS as the new exec file. | |
355 | ||
c5aa993b JM |
356 | Note that we have to explicitly ignore additional args, since we can |
357 | be called from file_command(), which also calls symbol_file_command() | |
1adeb98a FN |
358 | which can take multiple args. |
359 | ||
0963b4bd | 360 | If ARGS is NULL, we just want to close the exec file. */ |
c906108c | 361 | |
1adeb98a | 362 | static void |
fba45db2 | 363 | exec_file_command (char *args, int from_tty) |
c906108c | 364 | { |
1adeb98a FN |
365 | char **argv; |
366 | char *filename; | |
4c42eaff DJ |
367 | |
368 | if (from_tty && target_has_execution | |
369 | && !query (_("A program is being debugged already.\n" | |
370 | "Are you sure you want to change the file? "))) | |
371 | error (_("File not changed.")); | |
1adeb98a FN |
372 | |
373 | if (args) | |
374 | { | |
f7545552 TT |
375 | struct cleanup *cleanups; |
376 | ||
1adeb98a FN |
377 | /* Scan through the args and pick up the first non option arg |
378 | as the filename. */ | |
379 | ||
d1a41061 | 380 | argv = gdb_buildargv (args); |
f7545552 | 381 | cleanups = make_cleanup_freeargv (argv); |
1adeb98a FN |
382 | |
383 | for (; (*argv != NULL) && (**argv == '-'); argv++) | |
384 | {; | |
385 | } | |
386 | if (*argv == NULL) | |
8a3fe4f8 | 387 | error (_("No executable file name was specified")); |
1adeb98a FN |
388 | |
389 | filename = tilde_expand (*argv); | |
390 | make_cleanup (xfree, filename); | |
391 | exec_file_attach (filename, from_tty); | |
f7545552 TT |
392 | |
393 | do_cleanups (cleanups); | |
1adeb98a FN |
394 | } |
395 | else | |
396 | exec_file_attach (NULL, from_tty); | |
c906108c SS |
397 | } |
398 | ||
0963b4bd | 399 | /* Set both the exec file and the symbol file, in one command. |
c906108c SS |
400 | What a novelty. Why did GDB go through four major releases before this |
401 | command was added? */ | |
402 | ||
403 | static void | |
fba45db2 | 404 | file_command (char *arg, int from_tty) |
c906108c SS |
405 | { |
406 | /* FIXME, if we lose on reading the symbol file, we should revert | |
407 | the exec file, but that's rough. */ | |
408 | exec_file_command (arg, from_tty); | |
409 | symbol_file_command (arg, from_tty); | |
9a4105ab AC |
410 | if (deprecated_file_changed_hook) |
411 | deprecated_file_changed_hook (arg); | |
c906108c | 412 | } |
c906108c | 413 | \f |
c5aa993b | 414 | |
0963b4bd | 415 | /* Locate all mappable sections of a BFD file. |
c906108c SS |
416 | table_pp_char is a char * to get it through bfd_map_over_sections; |
417 | we cast it back to its proper type. */ | |
418 | ||
419 | static void | |
7be0c536 AC |
420 | add_to_section_table (bfd *abfd, struct bfd_section *asect, |
421 | void *table_pp_char) | |
c906108c | 422 | { |
0542c86d | 423 | struct target_section **table_pp = (struct target_section **) table_pp_char; |
c906108c SS |
424 | flagword aflag; |
425 | ||
2b2848e2 DE |
426 | gdb_assert (abfd == asect->owner); |
427 | ||
0f5d55d8 JB |
428 | /* Check the section flags, but do not discard zero-length sections, since |
429 | some symbols may still be attached to this section. For instance, we | |
430 | encountered on sparc-solaris 2.10 a shared library with an empty .bss | |
431 | section to which a symbol named "_end" was attached. The address | |
432 | of this symbol still needs to be relocated. */ | |
c906108c SS |
433 | aflag = bfd_get_section_flags (abfd, asect); |
434 | if (!(aflag & SEC_ALLOC)) | |
435 | return; | |
0f5d55d8 | 436 | |
046ac79f | 437 | (*table_pp)->owner = NULL; |
c906108c SS |
438 | (*table_pp)->the_bfd_section = asect; |
439 | (*table_pp)->addr = bfd_section_vma (abfd, asect); | |
440 | (*table_pp)->endaddr = (*table_pp)->addr + bfd_section_size (abfd, asect); | |
441 | (*table_pp)++; | |
442 | } | |
443 | ||
a5b1fd27 DE |
444 | /* See exec.h. */ |
445 | ||
446 | void | |
447 | clear_section_table (struct target_section_table *table) | |
448 | { | |
449 | xfree (table->sections); | |
450 | table->sections = table->sections_end = NULL; | |
451 | } | |
452 | ||
453 | /* Resize section table TABLE by ADJUSTMENT. | |
454 | ADJUSTMENT may be negative, in which case the caller must have already | |
455 | removed the sections being deleted. | |
456 | Returns the old size. */ | |
457 | ||
458 | static int | |
459 | resize_section_table (struct target_section_table *table, int adjustment) | |
07b82ea5 | 460 | { |
07b82ea5 PA |
461 | int old_count; |
462 | int new_count; | |
463 | ||
07b82ea5 PA |
464 | old_count = table->sections_end - table->sections; |
465 | ||
a5b1fd27 | 466 | new_count = adjustment + old_count; |
07b82ea5 PA |
467 | |
468 | if (new_count) | |
469 | { | |
224c3ddb SM |
470 | table->sections = XRESIZEVEC (struct target_section, table->sections, |
471 | new_count); | |
07b82ea5 PA |
472 | table->sections_end = table->sections + new_count; |
473 | } | |
474 | else | |
a5b1fd27 | 475 | clear_section_table (table); |
07b82ea5 PA |
476 | |
477 | return old_count; | |
478 | } | |
479 | ||
c906108c SS |
480 | /* Builds a section table, given args BFD, SECTABLE_PTR, SECEND_PTR. |
481 | Returns 0 if OK, 1 on error. */ | |
482 | ||
483 | int | |
0542c86d PA |
484 | build_section_table (struct bfd *some_bfd, struct target_section **start, |
485 | struct target_section **end) | |
c906108c SS |
486 | { |
487 | unsigned count; | |
488 | ||
489 | count = bfd_count_sections (some_bfd); | |
490 | if (*start) | |
b8c9b27d | 491 | xfree (* start); |
8d749320 | 492 | *start = XNEWVEC (struct target_section, count); |
c906108c | 493 | *end = *start; |
c5aa993b | 494 | bfd_map_over_sections (some_bfd, add_to_section_table, (char *) end); |
c906108c | 495 | if (*end > *start + count) |
3e43a32a MS |
496 | internal_error (__FILE__, __LINE__, |
497 | _("failed internal consistency check")); | |
c906108c SS |
498 | /* We could realloc the table, but it probably loses for most files. */ |
499 | return 0; | |
500 | } | |
07b82ea5 PA |
501 | |
502 | /* Add the sections array defined by [SECTIONS..SECTIONS_END[ to the | |
503 | current set of target sections. */ | |
504 | ||
505 | void | |
046ac79f | 506 | add_target_sections (void *owner, |
ed9eebaf | 507 | struct target_section *sections, |
07b82ea5 PA |
508 | struct target_section *sections_end) |
509 | { | |
510 | int count; | |
511 | struct target_section_table *table = current_target_sections; | |
512 | ||
513 | count = sections_end - sections; | |
514 | ||
515 | if (count > 0) | |
516 | { | |
517 | int space = resize_section_table (table, count); | |
ed9eebaf | 518 | int i; |
d7f9d729 | 519 | |
ed9eebaf TT |
520 | for (i = 0; i < count; ++i) |
521 | { | |
522 | table->sections[space + i] = sections[i]; | |
046ac79f | 523 | table->sections[space + i].owner = owner; |
ed9eebaf | 524 | } |
07b82ea5 PA |
525 | |
526 | /* If these are the first file sections we can provide memory | |
527 | from, push the file_stratum target. */ | |
ab16fce8 TT |
528 | if (!target_is_pushed (&exec_ops)) |
529 | push_target (&exec_ops); | |
07b82ea5 PA |
530 | } |
531 | } | |
532 | ||
76ad5e1e NB |
533 | /* Add the sections of OBJFILE to the current set of target sections. */ |
534 | ||
535 | void | |
536 | add_target_sections_of_objfile (struct objfile *objfile) | |
537 | { | |
538 | struct target_section_table *table = current_target_sections; | |
539 | struct obj_section *osect; | |
540 | int space; | |
541 | unsigned count = 0; | |
542 | struct target_section *ts; | |
543 | ||
544 | if (objfile == NULL) | |
545 | return; | |
546 | ||
547 | /* Compute the number of sections to add. */ | |
548 | ALL_OBJFILE_OSECTIONS (objfile, osect) | |
549 | { | |
550 | if (bfd_get_section_size (osect->the_bfd_section) == 0) | |
551 | continue; | |
552 | count++; | |
553 | } | |
554 | ||
555 | if (count == 0) | |
556 | return; | |
557 | ||
558 | space = resize_section_table (table, count); | |
559 | ||
560 | ts = table->sections + space; | |
561 | ||
562 | ALL_OBJFILE_OSECTIONS (objfile, osect) | |
563 | { | |
564 | if (bfd_get_section_size (osect->the_bfd_section) == 0) | |
565 | continue; | |
566 | ||
567 | gdb_assert (ts < table->sections + space + count); | |
568 | ||
569 | ts->addr = obj_section_addr (osect); | |
570 | ts->endaddr = obj_section_endaddr (osect); | |
571 | ts->the_bfd_section = osect->the_bfd_section; | |
572 | ts->owner = (void *) objfile; | |
573 | ||
574 | ts++; | |
575 | } | |
576 | } | |
577 | ||
046ac79f JK |
578 | /* Remove all target sections owned by OWNER. |
579 | OWNER must be the same value passed to add_target_sections. */ | |
07b82ea5 PA |
580 | |
581 | void | |
046ac79f | 582 | remove_target_sections (void *owner) |
07b82ea5 PA |
583 | { |
584 | struct target_section *src, *dest; | |
07b82ea5 PA |
585 | struct target_section_table *table = current_target_sections; |
586 | ||
046ac79f JK |
587 | gdb_assert (owner != NULL); |
588 | ||
07b82ea5 PA |
589 | dest = table->sections; |
590 | for (src = table->sections; src < table->sections_end; src++) | |
046ac79f | 591 | if (src->owner != owner) |
07b82ea5 PA |
592 | { |
593 | /* Keep this section. */ | |
594 | if (dest < src) | |
595 | *dest = *src; | |
596 | dest++; | |
597 | } | |
598 | ||
599 | /* If we've dropped any sections, resize the section table. */ | |
600 | if (dest < src) | |
601 | { | |
602 | int old_count; | |
603 | ||
604 | old_count = resize_section_table (table, dest - src); | |
605 | ||
606 | /* If we don't have any more sections to read memory from, | |
607 | remove the file_stratum target from the stack. */ | |
608 | if (old_count + (dest - src) == 0) | |
6c95b8df PA |
609 | { |
610 | struct program_space *pspace; | |
611 | ||
612 | ALL_PSPACES (pspace) | |
613 | if (pspace->target_sections.sections | |
614 | != pspace->target_sections.sections_end) | |
615 | return; | |
616 | ||
617 | unpush_target (&exec_ops); | |
618 | } | |
07b82ea5 PA |
619 | } |
620 | } | |
621 | ||
c906108c | 622 | \f |
348f8c02 | 623 | |
1ca49d37 YQ |
624 | enum target_xfer_status |
625 | exec_read_partial_read_only (gdb_byte *readbuf, ULONGEST offset, | |
626 | ULONGEST len, ULONGEST *xfered_len) | |
627 | { | |
628 | /* It's unduly pedantic to refuse to look at the executable for | |
629 | read-only pieces; so do the equivalent of readonly regions aka | |
630 | QTro packet. */ | |
631 | if (exec_bfd != NULL) | |
632 | { | |
633 | asection *s; | |
634 | bfd_size_type size; | |
635 | bfd_vma vma; | |
636 | ||
637 | for (s = exec_bfd->sections; s; s = s->next) | |
638 | { | |
639 | if ((s->flags & SEC_LOAD) == 0 | |
640 | || (s->flags & SEC_READONLY) == 0) | |
641 | continue; | |
642 | ||
643 | vma = s->vma; | |
644 | size = bfd_get_section_size (s); | |
645 | if (vma <= offset && offset < (vma + size)) | |
646 | { | |
647 | ULONGEST amt; | |
648 | ||
649 | amt = (vma + size) - offset; | |
650 | if (amt > len) | |
651 | amt = len; | |
652 | ||
653 | amt = bfd_get_section_contents (exec_bfd, s, | |
654 | readbuf, offset - vma, amt); | |
655 | ||
656 | if (amt == 0) | |
657 | return TARGET_XFER_EOF; | |
658 | else | |
659 | { | |
660 | *xfered_len = amt; | |
661 | return TARGET_XFER_OK; | |
662 | } | |
663 | } | |
664 | } | |
665 | } | |
666 | ||
667 | /* Indicate failure to find the requested memory block. */ | |
668 | return TARGET_XFER_E_IO; | |
669 | } | |
670 | ||
5a2eb0ef YQ |
671 | /* Appends all read-only memory ranges found in the target section |
672 | table defined by SECTIONS and SECTIONS_END, starting at (and | |
673 | intersected with) MEMADDR for LEN bytes. Returns the augmented | |
674 | VEC. */ | |
675 | ||
676 | static VEC(mem_range_s) * | |
e6ca34fc | 677 | section_table_available_memory (VEC(mem_range_s) *memory, |
424447ee | 678 | CORE_ADDR memaddr, ULONGEST len, |
e6ca34fc PA |
679 | struct target_section *sections, |
680 | struct target_section *sections_end) | |
681 | { | |
682 | struct target_section *p; | |
e6ca34fc PA |
683 | |
684 | for (p = sections; p < sections_end; p++) | |
685 | { | |
2b2848e2 DE |
686 | if ((bfd_get_section_flags (p->the_bfd_section->owner, |
687 | p->the_bfd_section) | |
e6ca34fc PA |
688 | & SEC_READONLY) == 0) |
689 | continue; | |
690 | ||
691 | /* Copy the meta-data, adjusted. */ | |
692 | if (mem_ranges_overlap (p->addr, p->endaddr - p->addr, memaddr, len)) | |
693 | { | |
694 | ULONGEST lo1, hi1, lo2, hi2; | |
695 | struct mem_range *r; | |
696 | ||
697 | lo1 = memaddr; | |
698 | hi1 = memaddr + len; | |
699 | ||
700 | lo2 = p->addr; | |
701 | hi2 = p->endaddr; | |
702 | ||
703 | r = VEC_safe_push (mem_range_s, memory, NULL); | |
704 | ||
705 | r->start = max (lo1, lo2); | |
706 | r->length = min (hi1, hi2) - r->start; | |
707 | } | |
708 | } | |
709 | ||
710 | return memory; | |
711 | } | |
712 | ||
1ee79381 YQ |
713 | enum target_xfer_status |
714 | section_table_read_available_memory (gdb_byte *readbuf, ULONGEST offset, | |
715 | ULONGEST len, ULONGEST *xfered_len) | |
716 | { | |
717 | VEC(mem_range_s) *available_memory = NULL; | |
718 | struct target_section_table *table; | |
719 | struct cleanup *old_chain; | |
720 | mem_range_s *r; | |
721 | int i; | |
722 | ||
723 | table = target_get_section_table (&exec_ops); | |
724 | available_memory = section_table_available_memory (available_memory, | |
725 | offset, len, | |
726 | table->sections, | |
727 | table->sections_end); | |
728 | ||
729 | old_chain = make_cleanup (VEC_cleanup(mem_range_s), | |
730 | &available_memory); | |
731 | ||
732 | normalize_mem_ranges (available_memory); | |
733 | ||
734 | for (i = 0; | |
735 | VEC_iterate (mem_range_s, available_memory, i, r); | |
736 | i++) | |
737 | { | |
738 | if (mem_ranges_overlap (r->start, r->length, offset, len)) | |
739 | { | |
740 | CORE_ADDR end; | |
741 | enum target_xfer_status status; | |
742 | ||
743 | /* Get the intersection window. */ | |
744 | end = min (offset + len, r->start + r->length); | |
745 | ||
746 | gdb_assert (end - offset <= len); | |
747 | ||
748 | if (offset >= r->start) | |
749 | status = exec_read_partial_read_only (readbuf, offset, | |
750 | end - offset, | |
751 | xfered_len); | |
752 | else | |
753 | { | |
754 | *xfered_len = r->start - offset; | |
bc113b4e | 755 | status = TARGET_XFER_UNAVAILABLE; |
1ee79381 YQ |
756 | } |
757 | do_cleanups (old_chain); | |
758 | return status; | |
759 | } | |
760 | } | |
761 | do_cleanups (old_chain); | |
762 | ||
763 | *xfered_len = len; | |
bc113b4e | 764 | return TARGET_XFER_UNAVAILABLE; |
1ee79381 YQ |
765 | } |
766 | ||
9b409511 | 767 | enum target_xfer_status |
07b82ea5 | 768 | section_table_xfer_memory_partial (gdb_byte *readbuf, const gdb_byte *writebuf, |
b55e14c7 | 769 | ULONGEST offset, ULONGEST len, |
9b409511 | 770 | ULONGEST *xfered_len, |
07b82ea5 PA |
771 | struct target_section *sections, |
772 | struct target_section *sections_end, | |
773 | const char *section_name) | |
c906108c | 774 | { |
020cc13c | 775 | int res; |
0542c86d | 776 | struct target_section *p; |
07b82ea5 PA |
777 | ULONGEST memaddr = offset; |
778 | ULONGEST memend = memaddr + len; | |
c906108c | 779 | |
b55e14c7 | 780 | if (len == 0) |
3e43a32a MS |
781 | internal_error (__FILE__, __LINE__, |
782 | _("failed internal consistency check")); | |
c906108c | 783 | |
348f8c02 | 784 | for (p = sections; p < sections_end; p++) |
c906108c | 785 | { |
2b2848e2 DE |
786 | struct bfd_section *asect = p->the_bfd_section; |
787 | bfd *abfd = asect->owner; | |
788 | ||
789 | if (section_name && strcmp (section_name, asect->name) != 0) | |
0963b4bd | 790 | continue; /* not the section we need. */ |
c906108c | 791 | if (memaddr >= p->addr) |
3db26b01 JB |
792 | { |
793 | if (memend <= p->endaddr) | |
794 | { | |
795 | /* Entire transfer is within this section. */ | |
07b82ea5 | 796 | if (writebuf) |
2b2848e2 | 797 | res = bfd_set_section_contents (abfd, asect, |
07b82ea5 | 798 | writebuf, memaddr - p->addr, |
85302095 AC |
799 | len); |
800 | else | |
2b2848e2 | 801 | res = bfd_get_section_contents (abfd, asect, |
07b82ea5 | 802 | readbuf, memaddr - p->addr, |
85302095 | 803 | len); |
9b409511 YQ |
804 | |
805 | if (res != 0) | |
806 | { | |
807 | *xfered_len = len; | |
808 | return TARGET_XFER_OK; | |
809 | } | |
810 | else | |
811 | return TARGET_XFER_EOF; | |
3db26b01 JB |
812 | } |
813 | else if (memaddr >= p->endaddr) | |
814 | { | |
815 | /* This section ends before the transfer starts. */ | |
816 | continue; | |
817 | } | |
818 | else | |
819 | { | |
820 | /* This section overlaps the transfer. Just do half. */ | |
821 | len = p->endaddr - memaddr; | |
07b82ea5 | 822 | if (writebuf) |
2b2848e2 | 823 | res = bfd_set_section_contents (abfd, asect, |
07b82ea5 | 824 | writebuf, memaddr - p->addr, |
85302095 AC |
825 | len); |
826 | else | |
2b2848e2 | 827 | res = bfd_get_section_contents (abfd, asect, |
07b82ea5 | 828 | readbuf, memaddr - p->addr, |
85302095 | 829 | len); |
9b409511 YQ |
830 | if (res != 0) |
831 | { | |
832 | *xfered_len = len; | |
833 | return TARGET_XFER_OK; | |
834 | } | |
835 | else | |
836 | return TARGET_XFER_EOF; | |
3db26b01 JB |
837 | } |
838 | } | |
c906108c SS |
839 | } |
840 | ||
9b409511 | 841 | return TARGET_XFER_EOF; /* We can't help. */ |
c906108c | 842 | } |
348f8c02 | 843 | |
70221824 | 844 | static struct target_section_table * |
07b82ea5 | 845 | exec_get_section_table (struct target_ops *ops) |
348f8c02 | 846 | { |
07b82ea5 | 847 | return current_target_sections; |
348f8c02 PA |
848 | } |
849 | ||
9b409511 | 850 | static enum target_xfer_status |
07b82ea5 PA |
851 | exec_xfer_partial (struct target_ops *ops, enum target_object object, |
852 | const char *annex, gdb_byte *readbuf, | |
853 | const gdb_byte *writebuf, | |
9b409511 | 854 | ULONGEST offset, ULONGEST len, ULONGEST *xfered_len) |
348f8c02 | 855 | { |
07b82ea5 PA |
856 | struct target_section_table *table = target_get_section_table (ops); |
857 | ||
858 | if (object == TARGET_OBJECT_MEMORY) | |
859 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 860 | offset, len, xfered_len, |
07b82ea5 PA |
861 | table->sections, |
862 | table->sections_end, | |
863 | NULL); | |
864 | else | |
2ed4b548 | 865 | return TARGET_XFER_E_IO; |
348f8c02 | 866 | } |
c906108c | 867 | \f |
c5aa993b | 868 | |
c906108c | 869 | void |
07b82ea5 | 870 | print_section_info (struct target_section_table *t, bfd *abfd) |
c906108c | 871 | { |
5af949e3 | 872 | struct gdbarch *gdbarch = gdbarch_from_bfd (abfd); |
0542c86d | 873 | struct target_section *p; |
17a912b6 | 874 | /* FIXME: 16 is not wide enough when gdbarch_addr_bit > 64. */ |
5af949e3 | 875 | int wid = gdbarch_addr_bit (gdbarch) <= 32 ? 8 : 16; |
c906108c | 876 | |
c5aa993b | 877 | printf_filtered ("\t`%s', ", bfd_get_filename (abfd)); |
c906108c | 878 | wrap_here (" "); |
a3f17187 | 879 | printf_filtered (_("file type %s.\n"), bfd_get_target (abfd)); |
c906108c | 880 | if (abfd == exec_bfd) |
51bee8e9 | 881 | { |
3e43a32a MS |
882 | /* gcc-3.4 does not like the initialization in |
883 | <p == t->sections_end>. */ | |
d904de5b | 884 | bfd_vma displacement = 0; |
2f1bdd26 | 885 | bfd_vma entry_point; |
51bee8e9 JK |
886 | |
887 | for (p = t->sections; p < t->sections_end; p++) | |
888 | { | |
2b2848e2 DE |
889 | struct bfd_section *psect = p->the_bfd_section; |
890 | bfd *pbfd = psect->owner; | |
51bee8e9 | 891 | |
2b2848e2 | 892 | if ((bfd_get_section_flags (pbfd, psect) & (SEC_ALLOC | SEC_LOAD)) |
51bee8e9 JK |
893 | != (SEC_ALLOC | SEC_LOAD)) |
894 | continue; | |
895 | ||
2b2848e2 DE |
896 | if (bfd_get_section_vma (pbfd, psect) <= abfd->start_address |
897 | && abfd->start_address < (bfd_get_section_vma (pbfd, psect) | |
898 | + bfd_get_section_size (psect))) | |
51bee8e9 | 899 | { |
2b2848e2 | 900 | displacement = p->addr - bfd_get_section_vma (pbfd, psect); |
51bee8e9 JK |
901 | break; |
902 | } | |
903 | } | |
904 | if (p == t->sections_end) | |
b37520b6 | 905 | warning (_("Cannot find section for the entry point of %s."), |
d904de5b | 906 | bfd_get_filename (abfd)); |
51bee8e9 | 907 | |
2f1bdd26 MGD |
908 | entry_point = gdbarch_addr_bits_remove (gdbarch, |
909 | bfd_get_start_address (abfd) | |
910 | + displacement); | |
51bee8e9 | 911 | printf_filtered (_("\tEntry point: %s\n"), |
2f1bdd26 | 912 | paddress (gdbarch, entry_point)); |
51bee8e9 | 913 | } |
07b82ea5 | 914 | for (p = t->sections; p < t->sections_end; p++) |
c906108c | 915 | { |
2b2848e2 DE |
916 | struct bfd_section *psect = p->the_bfd_section; |
917 | bfd *pbfd = psect->owner; | |
918 | ||
bb599908 PH |
919 | printf_filtered ("\t%s", hex_string_custom (p->addr, wid)); |
920 | printf_filtered (" - %s", hex_string_custom (p->endaddr, wid)); | |
bcf16802 KB |
921 | |
922 | /* FIXME: A format of "08l" is not wide enough for file offsets | |
923 | larger than 4GB. OTOH, making it "016l" isn't desirable either | |
924 | since most output will then be much wider than necessary. It | |
925 | may make sense to test the size of the file and choose the | |
926 | format string accordingly. */ | |
a3f17187 | 927 | /* FIXME: i18n: Need to rewrite this sentence. */ |
c906108c SS |
928 | if (info_verbose) |
929 | printf_filtered (" @ %s", | |
2b2848e2 DE |
930 | hex_string_custom (psect->filepos, 8)); |
931 | printf_filtered (" is %s", bfd_section_name (pbfd, psect)); | |
932 | if (pbfd != abfd) | |
933 | printf_filtered (" in %s", bfd_get_filename (pbfd)); | |
c906108c SS |
934 | printf_filtered ("\n"); |
935 | } | |
936 | } | |
937 | ||
938 | static void | |
fba45db2 | 939 | exec_files_info (struct target_ops *t) |
c906108c | 940 | { |
57008375 JK |
941 | if (exec_bfd) |
942 | print_section_info (current_target_sections, exec_bfd); | |
943 | else | |
944 | puts_filtered (_("\t<no file loaded>\n")); | |
c906108c SS |
945 | } |
946 | ||
947 | static void | |
fba45db2 | 948 | set_section_command (char *args, int from_tty) |
c906108c | 949 | { |
0542c86d | 950 | struct target_section *p; |
c906108c SS |
951 | char *secname; |
952 | unsigned seclen; | |
953 | unsigned long secaddr; | |
954 | char secprint[100]; | |
955 | long offset; | |
07b82ea5 | 956 | struct target_section_table *table; |
c906108c SS |
957 | |
958 | if (args == 0) | |
8a3fe4f8 | 959 | error (_("Must specify section name and its virtual address")); |
c906108c | 960 | |
0963b4bd | 961 | /* Parse out section name. */ |
c5aa993b | 962 | for (secname = args; !isspace (*args); args++); |
c906108c SS |
963 | seclen = args - secname; |
964 | ||
0963b4bd | 965 | /* Parse out new virtual address. */ |
c906108c SS |
966 | secaddr = parse_and_eval_address (args); |
967 | ||
07b82ea5 PA |
968 | table = current_target_sections; |
969 | for (p = table->sections; p < table->sections_end; p++) | |
c5aa993b | 970 | { |
57008375 | 971 | if (!strncmp (secname, bfd_section_name (p->bfd, |
3e43a32a | 972 | p->the_bfd_section), seclen) |
57008375 | 973 | && bfd_section_name (p->bfd, p->the_bfd_section)[seclen] == '\0') |
c5aa993b JM |
974 | { |
975 | offset = secaddr - p->addr; | |
976 | p->addr += offset; | |
977 | p->endaddr += offset; | |
978 | if (from_tty) | |
979 | exec_files_info (&exec_ops); | |
980 | return; | |
981 | } | |
c906108c | 982 | } |
c906108c SS |
983 | if (seclen >= sizeof (secprint)) |
984 | seclen = sizeof (secprint) - 1; | |
985 | strncpy (secprint, secname, seclen); | |
986 | secprint[seclen] = '\0'; | |
8a3fe4f8 | 987 | error (_("Section %s not found"), secprint); |
c906108c SS |
988 | } |
989 | ||
30510692 DJ |
990 | /* If we can find a section in FILENAME with BFD index INDEX, adjust |
991 | it to ADDRESS. */ | |
c1bd25fd DJ |
992 | |
993 | void | |
994 | exec_set_section_address (const char *filename, int index, CORE_ADDR address) | |
995 | { | |
0542c86d | 996 | struct target_section *p; |
07b82ea5 | 997 | struct target_section_table *table; |
c1bd25fd | 998 | |
07b82ea5 PA |
999 | table = current_target_sections; |
1000 | for (p = table->sections; p < table->sections_end; p++) | |
c1bd25fd | 1001 | { |
2b2848e2 | 1002 | if (filename_cmp (filename, p->the_bfd_section->owner->filename) == 0 |
30510692 | 1003 | && index == p->the_bfd_section->index) |
c1bd25fd | 1004 | { |
30510692 | 1005 | p->endaddr += address - p->addr; |
c1bd25fd | 1006 | p->addr = address; |
c1bd25fd DJ |
1007 | } |
1008 | } | |
1009 | } | |
1010 | ||
c906108c SS |
1011 | /* If mourn is being called in all the right places, this could be say |
1012 | `gdb internal error' (since generic_mourn calls | |
1013 | breakpoint_init_inferior). */ | |
1014 | ||
1015 | static int | |
3db08215 MM |
1016 | ignore (struct target_ops *ops, struct gdbarch *gdbarch, |
1017 | struct bp_target_info *bp_tgt) | |
c906108c SS |
1018 | { |
1019 | return 0; | |
1020 | } | |
1021 | ||
c35b1492 PA |
1022 | static int |
1023 | exec_has_memory (struct target_ops *ops) | |
1024 | { | |
1025 | /* We can provide memory if we have any file/target sections to read | |
1026 | from. */ | |
1027 | return (current_target_sections->sections | |
1028 | != current_target_sections->sections_end); | |
1029 | } | |
1030 | ||
83814951 TT |
1031 | static char * |
1032 | exec_make_note_section (struct target_ops *self, bfd *obfd, int *note_size) | |
1033 | { | |
1034 | error (_("Can't create a corefile")); | |
1035 | } | |
be4d1333 | 1036 | |
c906108c SS |
1037 | /* Fill in the exec file target vector. Very few entries need to be |
1038 | defined. */ | |
1039 | ||
be4d1333 | 1040 | static void |
fba45db2 | 1041 | init_exec_ops (void) |
c906108c SS |
1042 | { |
1043 | exec_ops.to_shortname = "exec"; | |
1044 | exec_ops.to_longname = "Local exec file"; | |
1045 | exec_ops.to_doc = "Use an executable file as a target.\n\ | |
1046 | Specify the filename of the executable file."; | |
1adeb98a | 1047 | exec_ops.to_open = exec_open; |
6c95b8df | 1048 | exec_ops.to_close = exec_close_1; |
07b82ea5 PA |
1049 | exec_ops.to_xfer_partial = exec_xfer_partial; |
1050 | exec_ops.to_get_section_table = exec_get_section_table; | |
c906108c SS |
1051 | exec_ops.to_files_info = exec_files_info; |
1052 | exec_ops.to_insert_breakpoint = ignore; | |
1053 | exec_ops.to_remove_breakpoint = ignore; | |
c906108c | 1054 | exec_ops.to_stratum = file_stratum; |
c35b1492 | 1055 | exec_ops.to_has_memory = exec_has_memory; |
be4d1333 | 1056 | exec_ops.to_make_corefile_notes = exec_make_note_section; |
b427c1bc | 1057 | exec_ops.to_find_memory_regions = objfile_find_memory_regions; |
c5aa993b | 1058 | exec_ops.to_magic = OPS_MAGIC; |
c906108c SS |
1059 | } |
1060 | ||
1061 | void | |
fba45db2 | 1062 | _initialize_exec (void) |
c906108c SS |
1063 | { |
1064 | struct cmd_list_element *c; | |
1065 | ||
1066 | init_exec_ops (); | |
1067 | ||
1068 | if (!dbx_commands) | |
1069 | { | |
1a966eab AC |
1070 | c = add_cmd ("file", class_files, file_command, _("\ |
1071 | Use FILE as program to be debugged.\n\ | |
c906108c SS |
1072 | It is read for its symbols, for getting the contents of pure memory,\n\ |
1073 | and it is the program executed when you use the `run' command.\n\ | |
1074 | If FILE cannot be found as specified, your execution directory path\n\ | |
1075 | ($PATH) is searched for a command of that name.\n\ | |
1a966eab | 1076 | No arg means to have no executable file and no symbols."), &cmdlist); |
5ba2abeb | 1077 | set_cmd_completer (c, filename_completer); |
c906108c SS |
1078 | } |
1079 | ||
1a966eab AC |
1080 | c = add_cmd ("exec-file", class_files, exec_file_command, _("\ |
1081 | Use FILE as program for getting contents of pure memory.\n\ | |
c906108c SS |
1082 | If FILE cannot be found as specified, your execution directory path\n\ |
1083 | is searched for a command of that name.\n\ | |
1a966eab | 1084 | No arg means have no executable file."), &cmdlist); |
5ba2abeb | 1085 | set_cmd_completer (c, filename_completer); |
c906108c | 1086 | |
1bedd215 AC |
1087 | add_com ("section", class_files, set_section_command, _("\ |
1088 | Change the base address of section SECTION of the exec file to ADDR.\n\ | |
c906108c SS |
1089 | This can be used if the exec file does not contain section addresses,\n\ |
1090 | (such as in the a.out format), or when the addresses specified in the\n\ | |
1091 | file itself are wrong. Each section must be changed separately. The\n\ | |
1bedd215 | 1092 | ``info files'' command lists all the sections and their addresses.")); |
c906108c | 1093 | |
5bf193a2 AC |
1094 | add_setshow_boolean_cmd ("write", class_support, &write_files, _("\ |
1095 | Set writing into executable and core files."), _("\ | |
1096 | Show writing into executable and core files."), NULL, | |
1097 | NULL, | |
920d2a44 | 1098 | show_write_files, |
5bf193a2 | 1099 | &setlist, &showlist); |
c5aa993b | 1100 | |
9852c492 | 1101 | add_target_with_completer (&exec_ops, filename_completer); |
c906108c | 1102 | } |