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)) | |
998d2a3e | 159 | full_exec_path = exec_file_find (exec_file, NULL); |
a10de604 | 160 | |
a9a5a3d1 GB |
161 | if (full_exec_path == NULL) |
162 | { | |
163 | /* It's possible we don't have a full path, but rather just a | |
164 | filename. Some targets, such as HP-UX, don't provide the | |
165 | full path, sigh. | |
166 | ||
167 | Attempt to qualify the filename against the source path. | |
168 | (If that fails, we'll just fall back on the original | |
169 | filename. Not much more we can do...) */ | |
170 | if (!source_full_path_of (exec_file, &full_exec_path)) | |
171 | full_exec_path = xstrdup (exec_file); | |
172 | } | |
a10de604 GB |
173 | |
174 | exec_file_attach (full_exec_path, from_tty); | |
175 | symbol_file_add_main (full_exec_path, from_tty); | |
176 | } | |
177 | ||
907083d1 | 178 | /* Set FILENAME as the new exec file. |
c906108c | 179 | |
c5aa993b JM |
180 | This function is intended to be behave essentially the same |
181 | as exec_file_command, except that the latter will detect when | |
182 | a target is being debugged, and will ask the user whether it | |
183 | should be shut down first. (If the answer is "no", then the | |
184 | new file is ignored.) | |
c906108c | 185 | |
c5aa993b JM |
186 | This file is used by exec_file_command, to do the work of opening |
187 | and processing the exec file after any prompting has happened. | |
c906108c | 188 | |
c5aa993b JM |
189 | And, it is used by child_attach, when the attach command was |
190 | given a pid but not a exec pathname, and the attach command could | |
191 | figure out the pathname from the pid. (In this case, we shouldn't | |
192 | ask the user whether the current target should be shut down -- | |
907083d1 | 193 | we're supplying the exec pathname late for good reason.) */ |
c906108c SS |
194 | |
195 | void | |
5f08566b | 196 | exec_file_attach (const char *filename, int from_tty) |
c906108c | 197 | { |
9b333ba3 TT |
198 | struct cleanup *cleanups; |
199 | ||
200 | /* First, acquire a reference to the current exec_bfd. We release | |
201 | this at the end of the function; but acquiring it now lets the | |
202 | BFD cache return it if this call refers to the same file. */ | |
203 | gdb_bfd_ref (exec_bfd); | |
204 | cleanups = make_cleanup_bfd_unref (exec_bfd); | |
205 | ||
c906108c | 206 | /* Remove any previous exec file. */ |
6c95b8df | 207 | exec_close (); |
c906108c SS |
208 | |
209 | /* Now open and digest the file the user requested, if any. */ | |
210 | ||
1adeb98a FN |
211 | if (!filename) |
212 | { | |
213 | if (from_tty) | |
a3f17187 | 214 | printf_unfiltered (_("No executable file now.\n")); |
7a107747 DJ |
215 | |
216 | set_gdbarch_from_file (NULL); | |
1adeb98a FN |
217 | } |
218 | else | |
c906108c | 219 | { |
64c0b5de | 220 | int load_via_target = 0; |
1f0c4988 | 221 | char *scratch_pathname, *canonical_pathname; |
c906108c | 222 | int scratch_chan; |
07b82ea5 | 223 | struct target_section *sections = NULL, *sections_end = NULL; |
d18b8b7a | 224 | char **matching; |
c5aa993b | 225 | |
64c0b5de GB |
226 | if (is_target_filename (filename)) |
227 | { | |
228 | if (target_filesystem_is_local ()) | |
229 | filename += strlen (TARGET_SYSROOT_PREFIX); | |
230 | else | |
231 | load_via_target = 1; | |
232 | } | |
233 | ||
234 | if (load_via_target) | |
c5aa993b | 235 | { |
64c0b5de GB |
236 | /* gdb_bfd_fopen does not support "target:" filenames. */ |
237 | if (write_files) | |
238 | warning (_("writing into executable files is " | |
239 | "not supported for %s sysroots"), | |
240 | TARGET_SYSROOT_PREFIX); | |
241 | ||
242 | scratch_pathname = xstrdup (filename); | |
243 | make_cleanup (xfree, scratch_pathname); | |
244 | ||
245 | scratch_chan = -1; | |
d7f9d729 | 246 | |
64c0b5de | 247 | canonical_pathname = scratch_pathname; |
c5aa993b | 248 | } |
64c0b5de GB |
249 | else |
250 | { | |
251 | scratch_chan = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, | |
252 | filename, write_files ? | |
253 | O_RDWR | O_BINARY : O_RDONLY | O_BINARY, | |
254 | &scratch_pathname); | |
255 | #if defined(__GO32__) || defined(_WIN32) || defined(__CYGWIN__) | |
256 | if (scratch_chan < 0) | |
257 | { | |
258 | char *exename = alloca (strlen (filename) + 5); | |
259 | ||
260 | strcat (strcpy (exename, filename), ".exe"); | |
261 | scratch_chan = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, | |
262 | exename, write_files ? | |
263 | O_RDWR | O_BINARY | |
264 | : O_RDONLY | O_BINARY, | |
265 | &scratch_pathname); | |
266 | } | |
c906108c | 267 | #endif |
64c0b5de GB |
268 | if (scratch_chan < 0) |
269 | perror_with_name (filename); | |
a4453b7e | 270 | |
64c0b5de | 271 | make_cleanup (xfree, scratch_pathname); |
a4453b7e | 272 | |
64c0b5de GB |
273 | /* gdb_bfd_open (and its variants) prefers canonicalized |
274 | pathname for better BFD caching. */ | |
275 | canonical_pathname = gdb_realpath (scratch_pathname); | |
276 | make_cleanup (xfree, canonical_pathname); | |
277 | } | |
1f0c4988 | 278 | |
64c0b5de | 279 | if (write_files && !load_via_target) |
1f0c4988 | 280 | exec_bfd = gdb_bfd_fopen (canonical_pathname, gnutarget, |
1c00ec6b TT |
281 | FOPEN_RUB, scratch_chan); |
282 | else | |
1f0c4988 | 283 | exec_bfd = gdb_bfd_open (canonical_pathname, gnutarget, scratch_chan); |
c906108c SS |
284 | |
285 | if (!exec_bfd) | |
9fe4a216 | 286 | { |
9fe4a216 TT |
287 | error (_("\"%s\": could not open as an executable file: %s"), |
288 | scratch_pathname, bfd_errmsg (bfd_get_error ())); | |
289 | } | |
c906108c | 290 | |
64c0b5de GB |
291 | /* gdb_realpath_keepfile resolves symlinks on the local |
292 | filesystem and so cannot be used for "target:" files. */ | |
1f0c4988 | 293 | gdb_assert (exec_filename == NULL); |
64c0b5de GB |
294 | if (load_via_target) |
295 | exec_filename = xstrdup (bfd_get_filename (exec_bfd)); | |
296 | else | |
297 | exec_filename = gdb_realpath_keepfile (scratch_pathname); | |
1f0c4988 | 298 | |
d18b8b7a | 299 | if (!bfd_check_format_matches (exec_bfd, bfd_object, &matching)) |
c906108c SS |
300 | { |
301 | /* Make sure to close exec_bfd, or else "run" might try to use | |
302 | it. */ | |
6c95b8df | 303 | exec_close (); |
8a3fe4f8 | 304 | error (_("\"%s\": not in executable format: %s"), |
d18b8b7a HZ |
305 | scratch_pathname, |
306 | gdb_bfd_errmsg (bfd_get_error (), matching)); | |
c906108c SS |
307 | } |
308 | ||
07b82ea5 | 309 | if (build_section_table (exec_bfd, §ions, §ions_end)) |
c906108c SS |
310 | { |
311 | /* Make sure to close exec_bfd, or else "run" might try to use | |
312 | it. */ | |
6c95b8df | 313 | exec_close (); |
8a3fe4f8 | 314 | error (_("\"%s\": can't find the file sections: %s"), |
c906108c SS |
315 | scratch_pathname, bfd_errmsg (bfd_get_error ())); |
316 | } | |
317 | ||
c04ea773 DJ |
318 | exec_bfd_mtime = bfd_get_mtime (exec_bfd); |
319 | ||
c906108c SS |
320 | validate_files (); |
321 | ||
322 | set_gdbarch_from_file (exec_bfd); | |
323 | ||
07b82ea5 | 324 | /* Add the executable's sections to the current address spaces' |
6c95b8df PA |
325 | list of sections. This possibly pushes the exec_ops |
326 | target. */ | |
ed9eebaf | 327 | add_target_sections (&exec_bfd, sections, sections_end); |
07b82ea5 | 328 | xfree (sections); |
c906108c SS |
329 | |
330 | /* Tell display code (if any) about the changed file name. */ | |
9a4105ab AC |
331 | if (deprecated_exec_file_display_hook) |
332 | (*deprecated_exec_file_display_hook) (filename); | |
c906108c | 333 | } |
9b333ba3 TT |
334 | |
335 | do_cleanups (cleanups); | |
336 | ||
ce7d4522 | 337 | bfd_cache_close_all (); |
781b42b0 | 338 | observer_notify_executable_changed (); |
c906108c SS |
339 | } |
340 | ||
341 | /* Process the first arg in ARGS as the new exec file. | |
342 | ||
c5aa993b JM |
343 | Note that we have to explicitly ignore additional args, since we can |
344 | be called from file_command(), which also calls symbol_file_command() | |
1adeb98a FN |
345 | which can take multiple args. |
346 | ||
0963b4bd | 347 | If ARGS is NULL, we just want to close the exec file. */ |
c906108c | 348 | |
1adeb98a | 349 | static void |
fba45db2 | 350 | exec_file_command (char *args, int from_tty) |
c906108c | 351 | { |
1adeb98a FN |
352 | char **argv; |
353 | char *filename; | |
4c42eaff DJ |
354 | |
355 | if (from_tty && target_has_execution | |
356 | && !query (_("A program is being debugged already.\n" | |
357 | "Are you sure you want to change the file? "))) | |
358 | error (_("File not changed.")); | |
1adeb98a FN |
359 | |
360 | if (args) | |
361 | { | |
f7545552 TT |
362 | struct cleanup *cleanups; |
363 | ||
1adeb98a FN |
364 | /* Scan through the args and pick up the first non option arg |
365 | as the filename. */ | |
366 | ||
d1a41061 | 367 | argv = gdb_buildargv (args); |
f7545552 | 368 | cleanups = make_cleanup_freeargv (argv); |
1adeb98a FN |
369 | |
370 | for (; (*argv != NULL) && (**argv == '-'); argv++) | |
371 | {; | |
372 | } | |
373 | if (*argv == NULL) | |
8a3fe4f8 | 374 | error (_("No executable file name was specified")); |
1adeb98a FN |
375 | |
376 | filename = tilde_expand (*argv); | |
377 | make_cleanup (xfree, filename); | |
378 | exec_file_attach (filename, from_tty); | |
f7545552 TT |
379 | |
380 | do_cleanups (cleanups); | |
1adeb98a FN |
381 | } |
382 | else | |
383 | exec_file_attach (NULL, from_tty); | |
c906108c SS |
384 | } |
385 | ||
0963b4bd | 386 | /* Set both the exec file and the symbol file, in one command. |
c906108c SS |
387 | What a novelty. Why did GDB go through four major releases before this |
388 | command was added? */ | |
389 | ||
390 | static void | |
fba45db2 | 391 | file_command (char *arg, int from_tty) |
c906108c SS |
392 | { |
393 | /* FIXME, if we lose on reading the symbol file, we should revert | |
394 | the exec file, but that's rough. */ | |
395 | exec_file_command (arg, from_tty); | |
396 | symbol_file_command (arg, from_tty); | |
9a4105ab AC |
397 | if (deprecated_file_changed_hook) |
398 | deprecated_file_changed_hook (arg); | |
c906108c | 399 | } |
c906108c | 400 | \f |
c5aa993b | 401 | |
0963b4bd | 402 | /* Locate all mappable sections of a BFD file. |
c906108c SS |
403 | table_pp_char is a char * to get it through bfd_map_over_sections; |
404 | we cast it back to its proper type. */ | |
405 | ||
406 | static void | |
7be0c536 AC |
407 | add_to_section_table (bfd *abfd, struct bfd_section *asect, |
408 | void *table_pp_char) | |
c906108c | 409 | { |
0542c86d | 410 | struct target_section **table_pp = (struct target_section **) table_pp_char; |
c906108c SS |
411 | flagword aflag; |
412 | ||
2b2848e2 DE |
413 | gdb_assert (abfd == asect->owner); |
414 | ||
0f5d55d8 JB |
415 | /* Check the section flags, but do not discard zero-length sections, since |
416 | some symbols may still be attached to this section. For instance, we | |
417 | encountered on sparc-solaris 2.10 a shared library with an empty .bss | |
418 | section to which a symbol named "_end" was attached. The address | |
419 | of this symbol still needs to be relocated. */ | |
c906108c SS |
420 | aflag = bfd_get_section_flags (abfd, asect); |
421 | if (!(aflag & SEC_ALLOC)) | |
422 | return; | |
0f5d55d8 | 423 | |
046ac79f | 424 | (*table_pp)->owner = NULL; |
c906108c SS |
425 | (*table_pp)->the_bfd_section = asect; |
426 | (*table_pp)->addr = bfd_section_vma (abfd, asect); | |
427 | (*table_pp)->endaddr = (*table_pp)->addr + bfd_section_size (abfd, asect); | |
428 | (*table_pp)++; | |
429 | } | |
430 | ||
a5b1fd27 DE |
431 | /* See exec.h. */ |
432 | ||
433 | void | |
434 | clear_section_table (struct target_section_table *table) | |
435 | { | |
436 | xfree (table->sections); | |
437 | table->sections = table->sections_end = NULL; | |
438 | } | |
439 | ||
440 | /* Resize section table TABLE by ADJUSTMENT. | |
441 | ADJUSTMENT may be negative, in which case the caller must have already | |
442 | removed the sections being deleted. | |
443 | Returns the old size. */ | |
444 | ||
445 | static int | |
446 | resize_section_table (struct target_section_table *table, int adjustment) | |
07b82ea5 | 447 | { |
07b82ea5 PA |
448 | int old_count; |
449 | int new_count; | |
450 | ||
07b82ea5 PA |
451 | old_count = table->sections_end - table->sections; |
452 | ||
a5b1fd27 | 453 | new_count = adjustment + old_count; |
07b82ea5 PA |
454 | |
455 | if (new_count) | |
456 | { | |
457 | table->sections = xrealloc (table->sections, | |
458 | sizeof (struct target_section) * new_count); | |
459 | table->sections_end = table->sections + new_count; | |
460 | } | |
461 | else | |
a5b1fd27 | 462 | clear_section_table (table); |
07b82ea5 PA |
463 | |
464 | return old_count; | |
465 | } | |
466 | ||
c906108c SS |
467 | /* Builds a section table, given args BFD, SECTABLE_PTR, SECEND_PTR. |
468 | Returns 0 if OK, 1 on error. */ | |
469 | ||
470 | int | |
0542c86d PA |
471 | build_section_table (struct bfd *some_bfd, struct target_section **start, |
472 | struct target_section **end) | |
c906108c SS |
473 | { |
474 | unsigned count; | |
475 | ||
476 | count = bfd_count_sections (some_bfd); | |
477 | if (*start) | |
b8c9b27d | 478 | xfree (* start); |
0542c86d | 479 | *start = (struct target_section *) xmalloc (count * sizeof (**start)); |
c906108c | 480 | *end = *start; |
c5aa993b | 481 | bfd_map_over_sections (some_bfd, add_to_section_table, (char *) end); |
c906108c | 482 | if (*end > *start + count) |
3e43a32a MS |
483 | internal_error (__FILE__, __LINE__, |
484 | _("failed internal consistency check")); | |
c906108c SS |
485 | /* We could realloc the table, but it probably loses for most files. */ |
486 | return 0; | |
487 | } | |
07b82ea5 PA |
488 | |
489 | /* Add the sections array defined by [SECTIONS..SECTIONS_END[ to the | |
490 | current set of target sections. */ | |
491 | ||
492 | void | |
046ac79f | 493 | add_target_sections (void *owner, |
ed9eebaf | 494 | struct target_section *sections, |
07b82ea5 PA |
495 | struct target_section *sections_end) |
496 | { | |
497 | int count; | |
498 | struct target_section_table *table = current_target_sections; | |
499 | ||
500 | count = sections_end - sections; | |
501 | ||
502 | if (count > 0) | |
503 | { | |
504 | int space = resize_section_table (table, count); | |
ed9eebaf | 505 | int i; |
d7f9d729 | 506 | |
ed9eebaf TT |
507 | for (i = 0; i < count; ++i) |
508 | { | |
509 | table->sections[space + i] = sections[i]; | |
046ac79f | 510 | table->sections[space + i].owner = owner; |
ed9eebaf | 511 | } |
07b82ea5 PA |
512 | |
513 | /* If these are the first file sections we can provide memory | |
514 | from, push the file_stratum target. */ | |
ab16fce8 TT |
515 | if (!target_is_pushed (&exec_ops)) |
516 | push_target (&exec_ops); | |
07b82ea5 PA |
517 | } |
518 | } | |
519 | ||
76ad5e1e NB |
520 | /* Add the sections of OBJFILE to the current set of target sections. */ |
521 | ||
522 | void | |
523 | add_target_sections_of_objfile (struct objfile *objfile) | |
524 | { | |
525 | struct target_section_table *table = current_target_sections; | |
526 | struct obj_section *osect; | |
527 | int space; | |
528 | unsigned count = 0; | |
529 | struct target_section *ts; | |
530 | ||
531 | if (objfile == NULL) | |
532 | return; | |
533 | ||
534 | /* Compute the number of sections to add. */ | |
535 | ALL_OBJFILE_OSECTIONS (objfile, osect) | |
536 | { | |
537 | if (bfd_get_section_size (osect->the_bfd_section) == 0) | |
538 | continue; | |
539 | count++; | |
540 | } | |
541 | ||
542 | if (count == 0) | |
543 | return; | |
544 | ||
545 | space = resize_section_table (table, count); | |
546 | ||
547 | ts = table->sections + space; | |
548 | ||
549 | ALL_OBJFILE_OSECTIONS (objfile, osect) | |
550 | { | |
551 | if (bfd_get_section_size (osect->the_bfd_section) == 0) | |
552 | continue; | |
553 | ||
554 | gdb_assert (ts < table->sections + space + count); | |
555 | ||
556 | ts->addr = obj_section_addr (osect); | |
557 | ts->endaddr = obj_section_endaddr (osect); | |
558 | ts->the_bfd_section = osect->the_bfd_section; | |
559 | ts->owner = (void *) objfile; | |
560 | ||
561 | ts++; | |
562 | } | |
563 | } | |
564 | ||
046ac79f JK |
565 | /* Remove all target sections owned by OWNER. |
566 | OWNER must be the same value passed to add_target_sections. */ | |
07b82ea5 PA |
567 | |
568 | void | |
046ac79f | 569 | remove_target_sections (void *owner) |
07b82ea5 PA |
570 | { |
571 | struct target_section *src, *dest; | |
07b82ea5 PA |
572 | struct target_section_table *table = current_target_sections; |
573 | ||
046ac79f JK |
574 | gdb_assert (owner != NULL); |
575 | ||
07b82ea5 PA |
576 | dest = table->sections; |
577 | for (src = table->sections; src < table->sections_end; src++) | |
046ac79f | 578 | if (src->owner != owner) |
07b82ea5 PA |
579 | { |
580 | /* Keep this section. */ | |
581 | if (dest < src) | |
582 | *dest = *src; | |
583 | dest++; | |
584 | } | |
585 | ||
586 | /* If we've dropped any sections, resize the section table. */ | |
587 | if (dest < src) | |
588 | { | |
589 | int old_count; | |
590 | ||
591 | old_count = resize_section_table (table, dest - src); | |
592 | ||
593 | /* If we don't have any more sections to read memory from, | |
594 | remove the file_stratum target from the stack. */ | |
595 | if (old_count + (dest - src) == 0) | |
6c95b8df PA |
596 | { |
597 | struct program_space *pspace; | |
598 | ||
599 | ALL_PSPACES (pspace) | |
600 | if (pspace->target_sections.sections | |
601 | != pspace->target_sections.sections_end) | |
602 | return; | |
603 | ||
604 | unpush_target (&exec_ops); | |
605 | } | |
07b82ea5 PA |
606 | } |
607 | } | |
608 | ||
c906108c | 609 | \f |
348f8c02 | 610 | |
1ca49d37 YQ |
611 | enum target_xfer_status |
612 | exec_read_partial_read_only (gdb_byte *readbuf, ULONGEST offset, | |
613 | ULONGEST len, ULONGEST *xfered_len) | |
614 | { | |
615 | /* It's unduly pedantic to refuse to look at the executable for | |
616 | read-only pieces; so do the equivalent of readonly regions aka | |
617 | QTro packet. */ | |
618 | if (exec_bfd != NULL) | |
619 | { | |
620 | asection *s; | |
621 | bfd_size_type size; | |
622 | bfd_vma vma; | |
623 | ||
624 | for (s = exec_bfd->sections; s; s = s->next) | |
625 | { | |
626 | if ((s->flags & SEC_LOAD) == 0 | |
627 | || (s->flags & SEC_READONLY) == 0) | |
628 | continue; | |
629 | ||
630 | vma = s->vma; | |
631 | size = bfd_get_section_size (s); | |
632 | if (vma <= offset && offset < (vma + size)) | |
633 | { | |
634 | ULONGEST amt; | |
635 | ||
636 | amt = (vma + size) - offset; | |
637 | if (amt > len) | |
638 | amt = len; | |
639 | ||
640 | amt = bfd_get_section_contents (exec_bfd, s, | |
641 | readbuf, offset - vma, amt); | |
642 | ||
643 | if (amt == 0) | |
644 | return TARGET_XFER_EOF; | |
645 | else | |
646 | { | |
647 | *xfered_len = amt; | |
648 | return TARGET_XFER_OK; | |
649 | } | |
650 | } | |
651 | } | |
652 | } | |
653 | ||
654 | /* Indicate failure to find the requested memory block. */ | |
655 | return TARGET_XFER_E_IO; | |
656 | } | |
657 | ||
5a2eb0ef YQ |
658 | /* Appends all read-only memory ranges found in the target section |
659 | table defined by SECTIONS and SECTIONS_END, starting at (and | |
660 | intersected with) MEMADDR for LEN bytes. Returns the augmented | |
661 | VEC. */ | |
662 | ||
663 | static VEC(mem_range_s) * | |
e6ca34fc | 664 | section_table_available_memory (VEC(mem_range_s) *memory, |
424447ee | 665 | CORE_ADDR memaddr, ULONGEST len, |
e6ca34fc PA |
666 | struct target_section *sections, |
667 | struct target_section *sections_end) | |
668 | { | |
669 | struct target_section *p; | |
e6ca34fc PA |
670 | |
671 | for (p = sections; p < sections_end; p++) | |
672 | { | |
2b2848e2 DE |
673 | if ((bfd_get_section_flags (p->the_bfd_section->owner, |
674 | p->the_bfd_section) | |
e6ca34fc PA |
675 | & SEC_READONLY) == 0) |
676 | continue; | |
677 | ||
678 | /* Copy the meta-data, adjusted. */ | |
679 | if (mem_ranges_overlap (p->addr, p->endaddr - p->addr, memaddr, len)) | |
680 | { | |
681 | ULONGEST lo1, hi1, lo2, hi2; | |
682 | struct mem_range *r; | |
683 | ||
684 | lo1 = memaddr; | |
685 | hi1 = memaddr + len; | |
686 | ||
687 | lo2 = p->addr; | |
688 | hi2 = p->endaddr; | |
689 | ||
690 | r = VEC_safe_push (mem_range_s, memory, NULL); | |
691 | ||
692 | r->start = max (lo1, lo2); | |
693 | r->length = min (hi1, hi2) - r->start; | |
694 | } | |
695 | } | |
696 | ||
697 | return memory; | |
698 | } | |
699 | ||
1ee79381 YQ |
700 | enum target_xfer_status |
701 | section_table_read_available_memory (gdb_byte *readbuf, ULONGEST offset, | |
702 | ULONGEST len, ULONGEST *xfered_len) | |
703 | { | |
704 | VEC(mem_range_s) *available_memory = NULL; | |
705 | struct target_section_table *table; | |
706 | struct cleanup *old_chain; | |
707 | mem_range_s *r; | |
708 | int i; | |
709 | ||
710 | table = target_get_section_table (&exec_ops); | |
711 | available_memory = section_table_available_memory (available_memory, | |
712 | offset, len, | |
713 | table->sections, | |
714 | table->sections_end); | |
715 | ||
716 | old_chain = make_cleanup (VEC_cleanup(mem_range_s), | |
717 | &available_memory); | |
718 | ||
719 | normalize_mem_ranges (available_memory); | |
720 | ||
721 | for (i = 0; | |
722 | VEC_iterate (mem_range_s, available_memory, i, r); | |
723 | i++) | |
724 | { | |
725 | if (mem_ranges_overlap (r->start, r->length, offset, len)) | |
726 | { | |
727 | CORE_ADDR end; | |
728 | enum target_xfer_status status; | |
729 | ||
730 | /* Get the intersection window. */ | |
731 | end = min (offset + len, r->start + r->length); | |
732 | ||
733 | gdb_assert (end - offset <= len); | |
734 | ||
735 | if (offset >= r->start) | |
736 | status = exec_read_partial_read_only (readbuf, offset, | |
737 | end - offset, | |
738 | xfered_len); | |
739 | else | |
740 | { | |
741 | *xfered_len = r->start - offset; | |
bc113b4e | 742 | status = TARGET_XFER_UNAVAILABLE; |
1ee79381 YQ |
743 | } |
744 | do_cleanups (old_chain); | |
745 | return status; | |
746 | } | |
747 | } | |
748 | do_cleanups (old_chain); | |
749 | ||
750 | *xfered_len = len; | |
bc113b4e | 751 | return TARGET_XFER_UNAVAILABLE; |
1ee79381 YQ |
752 | } |
753 | ||
9b409511 | 754 | enum target_xfer_status |
07b82ea5 | 755 | section_table_xfer_memory_partial (gdb_byte *readbuf, const gdb_byte *writebuf, |
b55e14c7 | 756 | ULONGEST offset, ULONGEST len, |
9b409511 | 757 | ULONGEST *xfered_len, |
07b82ea5 PA |
758 | struct target_section *sections, |
759 | struct target_section *sections_end, | |
760 | const char *section_name) | |
c906108c | 761 | { |
020cc13c | 762 | int res; |
0542c86d | 763 | struct target_section *p; |
07b82ea5 PA |
764 | ULONGEST memaddr = offset; |
765 | ULONGEST memend = memaddr + len; | |
c906108c | 766 | |
b55e14c7 | 767 | if (len == 0) |
3e43a32a MS |
768 | internal_error (__FILE__, __LINE__, |
769 | _("failed internal consistency check")); | |
c906108c | 770 | |
348f8c02 | 771 | for (p = sections; p < sections_end; p++) |
c906108c | 772 | { |
2b2848e2 DE |
773 | struct bfd_section *asect = p->the_bfd_section; |
774 | bfd *abfd = asect->owner; | |
775 | ||
776 | if (section_name && strcmp (section_name, asect->name) != 0) | |
0963b4bd | 777 | continue; /* not the section we need. */ |
c906108c | 778 | if (memaddr >= p->addr) |
3db26b01 JB |
779 | { |
780 | if (memend <= p->endaddr) | |
781 | { | |
782 | /* Entire transfer is within this section. */ | |
07b82ea5 | 783 | if (writebuf) |
2b2848e2 | 784 | res = bfd_set_section_contents (abfd, asect, |
07b82ea5 | 785 | writebuf, memaddr - p->addr, |
85302095 AC |
786 | len); |
787 | else | |
2b2848e2 | 788 | res = bfd_get_section_contents (abfd, asect, |
07b82ea5 | 789 | readbuf, memaddr - p->addr, |
85302095 | 790 | len); |
9b409511 YQ |
791 | |
792 | if (res != 0) | |
793 | { | |
794 | *xfered_len = len; | |
795 | return TARGET_XFER_OK; | |
796 | } | |
797 | else | |
798 | return TARGET_XFER_EOF; | |
3db26b01 JB |
799 | } |
800 | else if (memaddr >= p->endaddr) | |
801 | { | |
802 | /* This section ends before the transfer starts. */ | |
803 | continue; | |
804 | } | |
805 | else | |
806 | { | |
807 | /* This section overlaps the transfer. Just do half. */ | |
808 | len = p->endaddr - memaddr; | |
07b82ea5 | 809 | if (writebuf) |
2b2848e2 | 810 | res = bfd_set_section_contents (abfd, asect, |
07b82ea5 | 811 | writebuf, memaddr - p->addr, |
85302095 AC |
812 | len); |
813 | else | |
2b2848e2 | 814 | res = bfd_get_section_contents (abfd, asect, |
07b82ea5 | 815 | readbuf, memaddr - p->addr, |
85302095 | 816 | len); |
9b409511 YQ |
817 | if (res != 0) |
818 | { | |
819 | *xfered_len = len; | |
820 | return TARGET_XFER_OK; | |
821 | } | |
822 | else | |
823 | return TARGET_XFER_EOF; | |
3db26b01 JB |
824 | } |
825 | } | |
c906108c SS |
826 | } |
827 | ||
9b409511 | 828 | return TARGET_XFER_EOF; /* We can't help. */ |
c906108c | 829 | } |
348f8c02 | 830 | |
70221824 | 831 | static struct target_section_table * |
07b82ea5 | 832 | exec_get_section_table (struct target_ops *ops) |
348f8c02 | 833 | { |
07b82ea5 | 834 | return current_target_sections; |
348f8c02 PA |
835 | } |
836 | ||
9b409511 | 837 | static enum target_xfer_status |
07b82ea5 PA |
838 | exec_xfer_partial (struct target_ops *ops, enum target_object object, |
839 | const char *annex, gdb_byte *readbuf, | |
840 | const gdb_byte *writebuf, | |
9b409511 | 841 | ULONGEST offset, ULONGEST len, ULONGEST *xfered_len) |
348f8c02 | 842 | { |
07b82ea5 PA |
843 | struct target_section_table *table = target_get_section_table (ops); |
844 | ||
845 | if (object == TARGET_OBJECT_MEMORY) | |
846 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 847 | offset, len, xfered_len, |
07b82ea5 PA |
848 | table->sections, |
849 | table->sections_end, | |
850 | NULL); | |
851 | else | |
2ed4b548 | 852 | return TARGET_XFER_E_IO; |
348f8c02 | 853 | } |
c906108c | 854 | \f |
c5aa993b | 855 | |
c906108c | 856 | void |
07b82ea5 | 857 | print_section_info (struct target_section_table *t, bfd *abfd) |
c906108c | 858 | { |
5af949e3 | 859 | struct gdbarch *gdbarch = gdbarch_from_bfd (abfd); |
0542c86d | 860 | struct target_section *p; |
17a912b6 | 861 | /* FIXME: 16 is not wide enough when gdbarch_addr_bit > 64. */ |
5af949e3 | 862 | int wid = gdbarch_addr_bit (gdbarch) <= 32 ? 8 : 16; |
c906108c | 863 | |
c5aa993b | 864 | printf_filtered ("\t`%s', ", bfd_get_filename (abfd)); |
c906108c | 865 | wrap_here (" "); |
a3f17187 | 866 | printf_filtered (_("file type %s.\n"), bfd_get_target (abfd)); |
c906108c | 867 | if (abfd == exec_bfd) |
51bee8e9 | 868 | { |
3e43a32a MS |
869 | /* gcc-3.4 does not like the initialization in |
870 | <p == t->sections_end>. */ | |
d904de5b | 871 | bfd_vma displacement = 0; |
2f1bdd26 | 872 | bfd_vma entry_point; |
51bee8e9 JK |
873 | |
874 | for (p = t->sections; p < t->sections_end; p++) | |
875 | { | |
2b2848e2 DE |
876 | struct bfd_section *psect = p->the_bfd_section; |
877 | bfd *pbfd = psect->owner; | |
51bee8e9 | 878 | |
2b2848e2 | 879 | if ((bfd_get_section_flags (pbfd, psect) & (SEC_ALLOC | SEC_LOAD)) |
51bee8e9 JK |
880 | != (SEC_ALLOC | SEC_LOAD)) |
881 | continue; | |
882 | ||
2b2848e2 DE |
883 | if (bfd_get_section_vma (pbfd, psect) <= abfd->start_address |
884 | && abfd->start_address < (bfd_get_section_vma (pbfd, psect) | |
885 | + bfd_get_section_size (psect))) | |
51bee8e9 | 886 | { |
2b2848e2 | 887 | displacement = p->addr - bfd_get_section_vma (pbfd, psect); |
51bee8e9 JK |
888 | break; |
889 | } | |
890 | } | |
891 | if (p == t->sections_end) | |
b37520b6 | 892 | warning (_("Cannot find section for the entry point of %s."), |
d904de5b | 893 | bfd_get_filename (abfd)); |
51bee8e9 | 894 | |
2f1bdd26 MGD |
895 | entry_point = gdbarch_addr_bits_remove (gdbarch, |
896 | bfd_get_start_address (abfd) | |
897 | + displacement); | |
51bee8e9 | 898 | printf_filtered (_("\tEntry point: %s\n"), |
2f1bdd26 | 899 | paddress (gdbarch, entry_point)); |
51bee8e9 | 900 | } |
07b82ea5 | 901 | for (p = t->sections; p < t->sections_end; p++) |
c906108c | 902 | { |
2b2848e2 DE |
903 | struct bfd_section *psect = p->the_bfd_section; |
904 | bfd *pbfd = psect->owner; | |
905 | ||
bb599908 PH |
906 | printf_filtered ("\t%s", hex_string_custom (p->addr, wid)); |
907 | printf_filtered (" - %s", hex_string_custom (p->endaddr, wid)); | |
bcf16802 KB |
908 | |
909 | /* FIXME: A format of "08l" is not wide enough for file offsets | |
910 | larger than 4GB. OTOH, making it "016l" isn't desirable either | |
911 | since most output will then be much wider than necessary. It | |
912 | may make sense to test the size of the file and choose the | |
913 | format string accordingly. */ | |
a3f17187 | 914 | /* FIXME: i18n: Need to rewrite this sentence. */ |
c906108c SS |
915 | if (info_verbose) |
916 | printf_filtered (" @ %s", | |
2b2848e2 DE |
917 | hex_string_custom (psect->filepos, 8)); |
918 | printf_filtered (" is %s", bfd_section_name (pbfd, psect)); | |
919 | if (pbfd != abfd) | |
920 | printf_filtered (" in %s", bfd_get_filename (pbfd)); | |
c906108c SS |
921 | printf_filtered ("\n"); |
922 | } | |
923 | } | |
924 | ||
925 | static void | |
fba45db2 | 926 | exec_files_info (struct target_ops *t) |
c906108c | 927 | { |
57008375 JK |
928 | if (exec_bfd) |
929 | print_section_info (current_target_sections, exec_bfd); | |
930 | else | |
931 | puts_filtered (_("\t<no file loaded>\n")); | |
c906108c SS |
932 | } |
933 | ||
934 | static void | |
fba45db2 | 935 | set_section_command (char *args, int from_tty) |
c906108c | 936 | { |
0542c86d | 937 | struct target_section *p; |
c906108c SS |
938 | char *secname; |
939 | unsigned seclen; | |
940 | unsigned long secaddr; | |
941 | char secprint[100]; | |
942 | long offset; | |
07b82ea5 | 943 | struct target_section_table *table; |
c906108c SS |
944 | |
945 | if (args == 0) | |
8a3fe4f8 | 946 | error (_("Must specify section name and its virtual address")); |
c906108c | 947 | |
0963b4bd | 948 | /* Parse out section name. */ |
c5aa993b | 949 | for (secname = args; !isspace (*args); args++); |
c906108c SS |
950 | seclen = args - secname; |
951 | ||
0963b4bd | 952 | /* Parse out new virtual address. */ |
c906108c SS |
953 | secaddr = parse_and_eval_address (args); |
954 | ||
07b82ea5 PA |
955 | table = current_target_sections; |
956 | for (p = table->sections; p < table->sections_end; p++) | |
c5aa993b | 957 | { |
57008375 | 958 | if (!strncmp (secname, bfd_section_name (p->bfd, |
3e43a32a | 959 | p->the_bfd_section), seclen) |
57008375 | 960 | && bfd_section_name (p->bfd, p->the_bfd_section)[seclen] == '\0') |
c5aa993b JM |
961 | { |
962 | offset = secaddr - p->addr; | |
963 | p->addr += offset; | |
964 | p->endaddr += offset; | |
965 | if (from_tty) | |
966 | exec_files_info (&exec_ops); | |
967 | return; | |
968 | } | |
c906108c | 969 | } |
c906108c SS |
970 | if (seclen >= sizeof (secprint)) |
971 | seclen = sizeof (secprint) - 1; | |
972 | strncpy (secprint, secname, seclen); | |
973 | secprint[seclen] = '\0'; | |
8a3fe4f8 | 974 | error (_("Section %s not found"), secprint); |
c906108c SS |
975 | } |
976 | ||
30510692 DJ |
977 | /* If we can find a section in FILENAME with BFD index INDEX, adjust |
978 | it to ADDRESS. */ | |
c1bd25fd DJ |
979 | |
980 | void | |
981 | exec_set_section_address (const char *filename, int index, CORE_ADDR address) | |
982 | { | |
0542c86d | 983 | struct target_section *p; |
07b82ea5 | 984 | struct target_section_table *table; |
c1bd25fd | 985 | |
07b82ea5 PA |
986 | table = current_target_sections; |
987 | for (p = table->sections; p < table->sections_end; p++) | |
c1bd25fd | 988 | { |
2b2848e2 | 989 | if (filename_cmp (filename, p->the_bfd_section->owner->filename) == 0 |
30510692 | 990 | && index == p->the_bfd_section->index) |
c1bd25fd | 991 | { |
30510692 | 992 | p->endaddr += address - p->addr; |
c1bd25fd | 993 | p->addr = address; |
c1bd25fd DJ |
994 | } |
995 | } | |
996 | } | |
997 | ||
c906108c SS |
998 | /* If mourn is being called in all the right places, this could be say |
999 | `gdb internal error' (since generic_mourn calls | |
1000 | breakpoint_init_inferior). */ | |
1001 | ||
1002 | static int | |
3db08215 MM |
1003 | ignore (struct target_ops *ops, struct gdbarch *gdbarch, |
1004 | struct bp_target_info *bp_tgt) | |
c906108c SS |
1005 | { |
1006 | return 0; | |
1007 | } | |
1008 | ||
c35b1492 PA |
1009 | static int |
1010 | exec_has_memory (struct target_ops *ops) | |
1011 | { | |
1012 | /* We can provide memory if we have any file/target sections to read | |
1013 | from. */ | |
1014 | return (current_target_sections->sections | |
1015 | != current_target_sections->sections_end); | |
1016 | } | |
1017 | ||
83814951 TT |
1018 | static char * |
1019 | exec_make_note_section (struct target_ops *self, bfd *obfd, int *note_size) | |
1020 | { | |
1021 | error (_("Can't create a corefile")); | |
1022 | } | |
be4d1333 | 1023 | |
c906108c SS |
1024 | /* Fill in the exec file target vector. Very few entries need to be |
1025 | defined. */ | |
1026 | ||
be4d1333 | 1027 | static void |
fba45db2 | 1028 | init_exec_ops (void) |
c906108c SS |
1029 | { |
1030 | exec_ops.to_shortname = "exec"; | |
1031 | exec_ops.to_longname = "Local exec file"; | |
1032 | exec_ops.to_doc = "Use an executable file as a target.\n\ | |
1033 | Specify the filename of the executable file."; | |
1adeb98a | 1034 | exec_ops.to_open = exec_open; |
6c95b8df | 1035 | exec_ops.to_close = exec_close_1; |
07b82ea5 PA |
1036 | exec_ops.to_xfer_partial = exec_xfer_partial; |
1037 | exec_ops.to_get_section_table = exec_get_section_table; | |
c906108c SS |
1038 | exec_ops.to_files_info = exec_files_info; |
1039 | exec_ops.to_insert_breakpoint = ignore; | |
1040 | exec_ops.to_remove_breakpoint = ignore; | |
c906108c | 1041 | exec_ops.to_stratum = file_stratum; |
c35b1492 | 1042 | exec_ops.to_has_memory = exec_has_memory; |
be4d1333 | 1043 | exec_ops.to_make_corefile_notes = exec_make_note_section; |
b427c1bc | 1044 | exec_ops.to_find_memory_regions = objfile_find_memory_regions; |
c5aa993b | 1045 | exec_ops.to_magic = OPS_MAGIC; |
c906108c SS |
1046 | } |
1047 | ||
1048 | void | |
fba45db2 | 1049 | _initialize_exec (void) |
c906108c SS |
1050 | { |
1051 | struct cmd_list_element *c; | |
1052 | ||
1053 | init_exec_ops (); | |
1054 | ||
1055 | if (!dbx_commands) | |
1056 | { | |
1a966eab AC |
1057 | c = add_cmd ("file", class_files, file_command, _("\ |
1058 | Use FILE as program to be debugged.\n\ | |
c906108c SS |
1059 | It is read for its symbols, for getting the contents of pure memory,\n\ |
1060 | and it is the program executed when you use the `run' command.\n\ | |
1061 | If FILE cannot be found as specified, your execution directory path\n\ | |
1062 | ($PATH) is searched for a command of that name.\n\ | |
1a966eab | 1063 | No arg means to have no executable file and no symbols."), &cmdlist); |
5ba2abeb | 1064 | set_cmd_completer (c, filename_completer); |
c906108c SS |
1065 | } |
1066 | ||
1a966eab AC |
1067 | c = add_cmd ("exec-file", class_files, exec_file_command, _("\ |
1068 | Use FILE as program for getting contents of pure memory.\n\ | |
c906108c SS |
1069 | If FILE cannot be found as specified, your execution directory path\n\ |
1070 | is searched for a command of that name.\n\ | |
1a966eab | 1071 | No arg means have no executable file."), &cmdlist); |
5ba2abeb | 1072 | set_cmd_completer (c, filename_completer); |
c906108c | 1073 | |
1bedd215 AC |
1074 | add_com ("section", class_files, set_section_command, _("\ |
1075 | Change the base address of section SECTION of the exec file to ADDR.\n\ | |
c906108c SS |
1076 | This can be used if the exec file does not contain section addresses,\n\ |
1077 | (such as in the a.out format), or when the addresses specified in the\n\ | |
1078 | file itself are wrong. Each section must be changed separately. The\n\ | |
1bedd215 | 1079 | ``info files'' command lists all the sections and their addresses.")); |
c906108c | 1080 | |
5bf193a2 AC |
1081 | add_setshow_boolean_cmd ("write", class_support, &write_files, _("\ |
1082 | Set writing into executable and core files."), _("\ | |
1083 | Show writing into executable and core files."), NULL, | |
1084 | NULL, | |
920d2a44 | 1085 | show_write_files, |
5bf193a2 | 1086 | &setlist, &showlist); |
c5aa993b | 1087 | |
9852c492 | 1088 | add_target_with_completer (&exec_ops, filename_completer); |
c906108c | 1089 | } |