Commit | Line | Data |
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c906108c | 1 | /* Work with executable files, for GDB. |
4646aa9d | 2 | |
e2882c85 | 3 | Copyright (C) 1988-2018 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" |
76727919 | 32 | #include "observable.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" |
b46a8d7c | 38 | #include "source.h" |
c906108c | 39 | |
c906108c | 40 | #include <fcntl.h> |
dbda9972 | 41 | #include "readline/readline.h" |
c906108c SS |
42 | #include "gdbcore.h" |
43 | ||
44 | #include <ctype.h> | |
53ce3c39 | 45 | #include <sys/stat.h> |
a9a5a3d1 | 46 | #include "solist.h" |
325fac50 | 47 | #include <algorithm> |
b4987c95 | 48 | #include "common/pathstuff.h" |
c906108c | 49 | |
1d8b34a7 | 50 | void (*deprecated_file_changed_hook) (const char *); |
c906108c | 51 | |
c906108c SS |
52 | /* The target vector for executable files. */ |
53 | ||
f6ac5f3d PA |
54 | struct exec_target final : public target_ops |
55 | { | |
56 | exec_target () | |
57 | { to_stratum = file_stratum; } | |
58 | ||
59 | const char *shortname () override | |
60 | { return "exec"; } | |
61 | ||
62 | const char *longname () override | |
63 | { return _("Local exec file"); } | |
64 | ||
65 | const char *doc () override | |
66 | { | |
67 | return _("\ | |
68 | Use an executable file as a target.\n\ | |
69 | Specify the filename of the executable file."); | |
70 | } | |
71 | ||
72 | void open (const char *, int) override; | |
73 | void close () override; | |
74 | enum target_xfer_status xfer_partial (enum target_object object, | |
75 | const char *annex, | |
76 | gdb_byte *readbuf, | |
77 | const gdb_byte *writebuf, | |
78 | ULONGEST offset, ULONGEST len, | |
79 | ULONGEST *xfered_len) override; | |
80 | struct target_section_table *get_section_table () override; | |
81 | void files_info () override; | |
82 | ||
57810aa7 | 83 | bool has_memory () override; |
f6ac5f3d PA |
84 | char *make_corefile_notes (bfd *, int *) override; |
85 | int find_memory_regions (find_memory_region_ftype func, void *data) override; | |
86 | }; | |
87 | ||
88 | static exec_target exec_ops; | |
c906108c | 89 | |
c906108c SS |
90 | /* Whether to open exec and core files read-only or read-write. */ |
91 | ||
92 | int write_files = 0; | |
920d2a44 AC |
93 | static void |
94 | show_write_files (struct ui_file *file, int from_tty, | |
95 | struct cmd_list_element *c, const char *value) | |
96 | { | |
97 | fprintf_filtered (file, _("Writing into executable and core files is %s.\n"), | |
98 | value); | |
99 | } | |
100 | ||
c906108c | 101 | |
f6ac5f3d PA |
102 | void |
103 | exec_target::open (const char *args, int from_tty) | |
1adeb98a FN |
104 | { |
105 | target_preopen (from_tty); | |
106 | exec_file_attach (args, from_tty); | |
107 | } | |
108 | ||
07b82ea5 PA |
109 | /* Close and clear exec_bfd. If we end up with no target sections to |
110 | read memory from, this unpushes the exec_ops target. */ | |
111 | ||
6c95b8df PA |
112 | void |
113 | exec_close (void) | |
07b82ea5 PA |
114 | { |
115 | if (exec_bfd) | |
116 | { | |
117 | bfd *abfd = exec_bfd; | |
07b82ea5 | 118 | |
cbb099e8 | 119 | gdb_bfd_unref (abfd); |
07b82ea5 PA |
120 | |
121 | /* Removing target sections may close the exec_ops target. | |
122 | Clear exec_bfd before doing so to prevent recursion. */ | |
123 | exec_bfd = NULL; | |
124 | exec_bfd_mtime = 0; | |
125 | ||
046ac79f | 126 | remove_target_sections (&exec_bfd); |
1f0c4988 JK |
127 | |
128 | xfree (exec_filename); | |
129 | exec_filename = NULL; | |
07b82ea5 PA |
130 | } |
131 | } | |
132 | ||
6c95b8df PA |
133 | /* This is the target_close implementation. Clears all target |
134 | sections and closes all executable bfds from all program spaces. */ | |
135 | ||
f6ac5f3d PA |
136 | void |
137 | exec_target::close () | |
c906108c | 138 | { |
ab16fce8 | 139 | struct program_space *ss; |
5ed8105e | 140 | scoped_restore_current_program_space restore_pspace; |
6c95b8df | 141 | |
ab16fce8 | 142 | ALL_PSPACES (ss) |
5ed8105e PA |
143 | { |
144 | set_current_program_space (ss); | |
145 | clear_section_table (current_target_sections); | |
146 | exec_close (); | |
147 | } | |
c906108c SS |
148 | } |
149 | ||
f6ac5f3d | 150 | /* See gdbcore.h. */ |
a10de604 GB |
151 | |
152 | void | |
ecf45d2c SL |
153 | try_open_exec_file (const char *exec_file_host, struct inferior *inf, |
154 | symfile_add_flags add_flags) | |
a10de604 | 155 | { |
88178e82 | 156 | struct cleanup *old_chain; |
57d1de9c | 157 | struct gdb_exception prev_err = exception_none; |
a10de604 | 158 | |
ecf45d2c | 159 | old_chain = make_cleanup (free_current_contents, &prev_err.message); |
57d1de9c LM |
160 | |
161 | /* exec_file_attach and symbol_file_add_main may throw an error if the file | |
162 | cannot be opened either locally or remotely. | |
163 | ||
164 | This happens for example, when the file is first found in the local | |
165 | sysroot (above), and then disappears (a TOCTOU race), or when it doesn't | |
166 | exist in the target filesystem, or when the file does exist, but | |
167 | is not readable. | |
88178e82 | 168 | |
57d1de9c LM |
169 | Even without a symbol file, the remote-based debugging session should |
170 | continue normally instead of ending abruptly. Hence we catch thrown | |
171 | errors/exceptions in the following code. */ | |
172 | TRY | |
173 | { | |
ecf45d2c SL |
174 | /* We must do this step even if exec_file_host is NULL, so that |
175 | exec_file_attach will clear state. */ | |
176 | exec_file_attach (exec_file_host, add_flags & SYMFILE_VERBOSE); | |
57d1de9c LM |
177 | } |
178 | CATCH (err, RETURN_MASK_ERROR) | |
179 | { | |
180 | if (err.message != NULL) | |
181 | warning ("%s", err.message); | |
182 | ||
183 | prev_err = err; | |
184 | ||
185 | /* Save message so it doesn't get trashed by the catch below. */ | |
b5e1db87 LM |
186 | if (err.message != NULL) |
187 | prev_err.message = xstrdup (err.message); | |
57d1de9c LM |
188 | } |
189 | END_CATCH | |
190 | ||
ecf45d2c | 191 | if (exec_file_host != NULL) |
57d1de9c | 192 | { |
ecf45d2c SL |
193 | TRY |
194 | { | |
195 | symbol_file_add_main (exec_file_host, add_flags); | |
196 | } | |
197 | CATCH (err, RETURN_MASK_ERROR) | |
198 | { | |
199 | if (!exception_print_same (prev_err, err)) | |
200 | warning ("%s", err.message); | |
201 | } | |
202 | END_CATCH | |
57d1de9c | 203 | } |
ecf45d2c SL |
204 | |
205 | do_cleanups (old_chain); | |
206 | } | |
207 | ||
208 | /* See gdbcore.h. */ | |
209 | ||
210 | void | |
211 | exec_file_locate_attach (int pid, int defer_bp_reset, int from_tty) | |
212 | { | |
797bc1cb | 213 | char *exec_file_target; |
ecf45d2c SL |
214 | symfile_add_flags add_flags = 0; |
215 | ||
216 | /* Do nothing if we already have an executable filename. */ | |
217 | if (get_exec_file (0) != NULL) | |
218 | return; | |
219 | ||
220 | /* Try to determine a filename from the process itself. */ | |
221 | exec_file_target = target_pid_to_exec_file (pid); | |
222 | if (exec_file_target == NULL) | |
57d1de9c | 223 | { |
ecf45d2c SL |
224 | warning (_("No executable has been specified and target does not " |
225 | "support\n" | |
226 | "determining executable automatically. " | |
227 | "Try using the \"file\" command.")); | |
228 | return; | |
57d1de9c | 229 | } |
88178e82 | 230 | |
797bc1cb TT |
231 | gdb::unique_xmalloc_ptr<char> exec_file_host |
232 | = exec_file_find (exec_file_target, NULL); | |
ecf45d2c SL |
233 | |
234 | if (defer_bp_reset) | |
235 | add_flags |= SYMFILE_DEFER_BP_RESET; | |
236 | ||
237 | if (from_tty) | |
238 | add_flags |= SYMFILE_VERBOSE; | |
239 | ||
240 | /* Attempt to open the exec file. */ | |
797bc1cb | 241 | try_open_exec_file (exec_file_host.get (), current_inferior (), add_flags); |
a10de604 GB |
242 | } |
243 | ||
907083d1 | 244 | /* Set FILENAME as the new exec file. |
c906108c | 245 | |
c5aa993b JM |
246 | This function is intended to be behave essentially the same |
247 | as exec_file_command, except that the latter will detect when | |
248 | a target is being debugged, and will ask the user whether it | |
249 | should be shut down first. (If the answer is "no", then the | |
250 | new file is ignored.) | |
c906108c | 251 | |
c5aa993b JM |
252 | This file is used by exec_file_command, to do the work of opening |
253 | and processing the exec file after any prompting has happened. | |
c906108c | 254 | |
c5aa993b JM |
255 | And, it is used by child_attach, when the attach command was |
256 | given a pid but not a exec pathname, and the attach command could | |
257 | figure out the pathname from the pid. (In this case, we shouldn't | |
258 | ask the user whether the current target should be shut down -- | |
907083d1 | 259 | we're supplying the exec pathname late for good reason.) */ |
c906108c SS |
260 | |
261 | void | |
5f08566b | 262 | exec_file_attach (const char *filename, int from_tty) |
c906108c | 263 | { |
9b333ba3 TT |
264 | /* First, acquire a reference to the current exec_bfd. We release |
265 | this at the end of the function; but acquiring it now lets the | |
266 | BFD cache return it if this call refers to the same file. */ | |
1831a9f9 | 267 | gdb_bfd_ref_ptr exec_bfd_holder = gdb_bfd_ref_ptr::new_reference (exec_bfd); |
192b62ce | 268 | |
c906108c | 269 | /* Remove any previous exec file. */ |
6c95b8df | 270 | exec_close (); |
c906108c SS |
271 | |
272 | /* Now open and digest the file the user requested, if any. */ | |
273 | ||
1adeb98a FN |
274 | if (!filename) |
275 | { | |
276 | if (from_tty) | |
a3f17187 | 277 | printf_unfiltered (_("No executable file now.\n")); |
7a107747 DJ |
278 | |
279 | set_gdbarch_from_file (NULL); | |
1adeb98a FN |
280 | } |
281 | else | |
c906108c | 282 | { |
64c0b5de | 283 | int load_via_target = 0; |
14278e1f | 284 | const char *scratch_pathname, *canonical_pathname; |
c906108c | 285 | int scratch_chan; |
07b82ea5 | 286 | struct target_section *sections = NULL, *sections_end = NULL; |
d18b8b7a | 287 | char **matching; |
c5aa993b | 288 | |
64c0b5de GB |
289 | if (is_target_filename (filename)) |
290 | { | |
291 | if (target_filesystem_is_local ()) | |
292 | filename += strlen (TARGET_SYSROOT_PREFIX); | |
293 | else | |
294 | load_via_target = 1; | |
295 | } | |
296 | ||
14278e1f | 297 | gdb::unique_xmalloc_ptr<char> canonical_storage, scratch_storage; |
64c0b5de | 298 | if (load_via_target) |
c5aa993b | 299 | { |
64c0b5de GB |
300 | /* gdb_bfd_fopen does not support "target:" filenames. */ |
301 | if (write_files) | |
302 | warning (_("writing into executable files is " | |
303 | "not supported for %s sysroots"), | |
304 | TARGET_SYSROOT_PREFIX); | |
305 | ||
14278e1f | 306 | scratch_pathname = filename; |
64c0b5de | 307 | scratch_chan = -1; |
64c0b5de | 308 | canonical_pathname = scratch_pathname; |
c5aa993b | 309 | } |
64c0b5de GB |
310 | else |
311 | { | |
312 | scratch_chan = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, | |
313 | filename, write_files ? | |
314 | O_RDWR | O_BINARY : O_RDONLY | O_BINARY, | |
e0cc99a6 | 315 | &scratch_storage); |
64c0b5de GB |
316 | #if defined(__GO32__) || defined(_WIN32) || defined(__CYGWIN__) |
317 | if (scratch_chan < 0) | |
318 | { | |
0ae1c716 | 319 | char *exename = (char *) alloca (strlen (filename) + 5); |
64c0b5de GB |
320 | |
321 | strcat (strcpy (exename, filename), ".exe"); | |
322 | scratch_chan = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, | |
323 | exename, write_files ? | |
324 | O_RDWR | O_BINARY | |
325 | : O_RDONLY | O_BINARY, | |
e0cc99a6 | 326 | &scratch_storage); |
64c0b5de | 327 | } |
c906108c | 328 | #endif |
64c0b5de GB |
329 | if (scratch_chan < 0) |
330 | perror_with_name (filename); | |
a4453b7e | 331 | |
e0cc99a6 | 332 | scratch_pathname = scratch_storage.get (); |
a4453b7e | 333 | |
64c0b5de GB |
334 | /* gdb_bfd_open (and its variants) prefers canonicalized |
335 | pathname for better BFD caching. */ | |
14278e1f TT |
336 | canonical_storage = gdb_realpath (scratch_pathname); |
337 | canonical_pathname = canonical_storage.get (); | |
64c0b5de | 338 | } |
1f0c4988 | 339 | |
192b62ce | 340 | gdb_bfd_ref_ptr temp; |
64c0b5de | 341 | if (write_files && !load_via_target) |
192b62ce TT |
342 | temp = gdb_bfd_fopen (canonical_pathname, gnutarget, |
343 | FOPEN_RUB, scratch_chan); | |
1c00ec6b | 344 | else |
192b62ce TT |
345 | temp = gdb_bfd_open (canonical_pathname, gnutarget, scratch_chan); |
346 | exec_bfd = temp.release (); | |
c906108c SS |
347 | |
348 | if (!exec_bfd) | |
9fe4a216 | 349 | { |
d5131498 | 350 | error (_("\"%s\": could not open as an executable file: %s."), |
9fe4a216 TT |
351 | scratch_pathname, bfd_errmsg (bfd_get_error ())); |
352 | } | |
c906108c | 353 | |
64c0b5de GB |
354 | /* gdb_realpath_keepfile resolves symlinks on the local |
355 | filesystem and so cannot be used for "target:" files. */ | |
1f0c4988 | 356 | gdb_assert (exec_filename == NULL); |
64c0b5de GB |
357 | if (load_via_target) |
358 | exec_filename = xstrdup (bfd_get_filename (exec_bfd)); | |
359 | else | |
4971c9a7 | 360 | exec_filename = gdb_realpath_keepfile (scratch_pathname).release (); |
1f0c4988 | 361 | |
d18b8b7a | 362 | if (!bfd_check_format_matches (exec_bfd, bfd_object, &matching)) |
c906108c SS |
363 | { |
364 | /* Make sure to close exec_bfd, or else "run" might try to use | |
365 | it. */ | |
6c95b8df | 366 | exec_close (); |
8a3fe4f8 | 367 | error (_("\"%s\": not in executable format: %s"), |
d18b8b7a HZ |
368 | scratch_pathname, |
369 | gdb_bfd_errmsg (bfd_get_error (), matching)); | |
c906108c SS |
370 | } |
371 | ||
07b82ea5 | 372 | if (build_section_table (exec_bfd, §ions, §ions_end)) |
c906108c SS |
373 | { |
374 | /* Make sure to close exec_bfd, or else "run" might try to use | |
375 | it. */ | |
6c95b8df | 376 | exec_close (); |
8a3fe4f8 | 377 | error (_("\"%s\": can't find the file sections: %s"), |
c906108c SS |
378 | scratch_pathname, bfd_errmsg (bfd_get_error ())); |
379 | } | |
380 | ||
c04ea773 DJ |
381 | exec_bfd_mtime = bfd_get_mtime (exec_bfd); |
382 | ||
c906108c SS |
383 | validate_files (); |
384 | ||
385 | set_gdbarch_from_file (exec_bfd); | |
386 | ||
07b82ea5 | 387 | /* Add the executable's sections to the current address spaces' |
6c95b8df PA |
388 | list of sections. This possibly pushes the exec_ops |
389 | target. */ | |
ed9eebaf | 390 | add_target_sections (&exec_bfd, sections, sections_end); |
07b82ea5 | 391 | xfree (sections); |
c906108c SS |
392 | |
393 | /* Tell display code (if any) about the changed file name. */ | |
9a4105ab AC |
394 | if (deprecated_exec_file_display_hook) |
395 | (*deprecated_exec_file_display_hook) (filename); | |
c906108c | 396 | } |
9b333ba3 | 397 | |
ce7d4522 | 398 | bfd_cache_close_all (); |
76727919 | 399 | gdb::observers::executable_changed.notify (); |
c906108c SS |
400 | } |
401 | ||
402 | /* Process the first arg in ARGS as the new exec file. | |
403 | ||
c5aa993b JM |
404 | Note that we have to explicitly ignore additional args, since we can |
405 | be called from file_command(), which also calls symbol_file_command() | |
1adeb98a FN |
406 | which can take multiple args. |
407 | ||
0963b4bd | 408 | If ARGS is NULL, we just want to close the exec file. */ |
c906108c | 409 | |
1adeb98a | 410 | static void |
1d8b34a7 | 411 | exec_file_command (const char *args, int from_tty) |
c906108c | 412 | { |
4c42eaff DJ |
413 | if (from_tty && target_has_execution |
414 | && !query (_("A program is being debugged already.\n" | |
415 | "Are you sure you want to change the file? "))) | |
416 | error (_("File not changed.")); | |
1adeb98a FN |
417 | |
418 | if (args) | |
419 | { | |
420 | /* Scan through the args and pick up the first non option arg | |
421 | as the filename. */ | |
422 | ||
773a1edc TT |
423 | gdb_argv built_argv (args); |
424 | char **argv = built_argv.get (); | |
1adeb98a FN |
425 | |
426 | for (; (*argv != NULL) && (**argv == '-'); argv++) | |
427 | {; | |
428 | } | |
429 | if (*argv == NULL) | |
8a3fe4f8 | 430 | error (_("No executable file name was specified")); |
1adeb98a | 431 | |
773a1edc TT |
432 | gdb::unique_xmalloc_ptr<char> filename (tilde_expand (*argv)); |
433 | exec_file_attach (filename.get (), from_tty); | |
1adeb98a FN |
434 | } |
435 | else | |
436 | exec_file_attach (NULL, from_tty); | |
c906108c SS |
437 | } |
438 | ||
0963b4bd | 439 | /* Set both the exec file and the symbol file, in one command. |
c906108c SS |
440 | What a novelty. Why did GDB go through four major releases before this |
441 | command was added? */ | |
442 | ||
443 | static void | |
1d8b34a7 | 444 | file_command (const char *arg, int from_tty) |
c906108c SS |
445 | { |
446 | /* FIXME, if we lose on reading the symbol file, we should revert | |
447 | the exec file, but that's rough. */ | |
448 | exec_file_command (arg, from_tty); | |
449 | symbol_file_command (arg, from_tty); | |
9a4105ab AC |
450 | if (deprecated_file_changed_hook) |
451 | deprecated_file_changed_hook (arg); | |
c906108c | 452 | } |
c906108c | 453 | \f |
c5aa993b | 454 | |
0963b4bd | 455 | /* Locate all mappable sections of a BFD file. |
c906108c SS |
456 | table_pp_char is a char * to get it through bfd_map_over_sections; |
457 | we cast it back to its proper type. */ | |
458 | ||
459 | static void | |
7be0c536 AC |
460 | add_to_section_table (bfd *abfd, struct bfd_section *asect, |
461 | void *table_pp_char) | |
c906108c | 462 | { |
0542c86d | 463 | struct target_section **table_pp = (struct target_section **) table_pp_char; |
c906108c SS |
464 | flagword aflag; |
465 | ||
2b2848e2 DE |
466 | gdb_assert (abfd == asect->owner); |
467 | ||
0f5d55d8 JB |
468 | /* Check the section flags, but do not discard zero-length sections, since |
469 | some symbols may still be attached to this section. For instance, we | |
470 | encountered on sparc-solaris 2.10 a shared library with an empty .bss | |
471 | section to which a symbol named "_end" was attached. The address | |
472 | of this symbol still needs to be relocated. */ | |
c906108c SS |
473 | aflag = bfd_get_section_flags (abfd, asect); |
474 | if (!(aflag & SEC_ALLOC)) | |
475 | return; | |
0f5d55d8 | 476 | |
046ac79f | 477 | (*table_pp)->owner = NULL; |
c906108c SS |
478 | (*table_pp)->the_bfd_section = asect; |
479 | (*table_pp)->addr = bfd_section_vma (abfd, asect); | |
480 | (*table_pp)->endaddr = (*table_pp)->addr + bfd_section_size (abfd, asect); | |
481 | (*table_pp)++; | |
482 | } | |
483 | ||
a5b1fd27 DE |
484 | /* See exec.h. */ |
485 | ||
486 | void | |
487 | clear_section_table (struct target_section_table *table) | |
488 | { | |
489 | xfree (table->sections); | |
490 | table->sections = table->sections_end = NULL; | |
491 | } | |
492 | ||
493 | /* Resize section table TABLE by ADJUSTMENT. | |
494 | ADJUSTMENT may be negative, in which case the caller must have already | |
495 | removed the sections being deleted. | |
496 | Returns the old size. */ | |
497 | ||
498 | static int | |
499 | resize_section_table (struct target_section_table *table, int adjustment) | |
07b82ea5 | 500 | { |
07b82ea5 PA |
501 | int old_count; |
502 | int new_count; | |
503 | ||
07b82ea5 PA |
504 | old_count = table->sections_end - table->sections; |
505 | ||
a5b1fd27 | 506 | new_count = adjustment + old_count; |
07b82ea5 PA |
507 | |
508 | if (new_count) | |
509 | { | |
224c3ddb SM |
510 | table->sections = XRESIZEVEC (struct target_section, table->sections, |
511 | new_count); | |
07b82ea5 PA |
512 | table->sections_end = table->sections + new_count; |
513 | } | |
514 | else | |
a5b1fd27 | 515 | clear_section_table (table); |
07b82ea5 PA |
516 | |
517 | return old_count; | |
518 | } | |
519 | ||
c906108c SS |
520 | /* Builds a section table, given args BFD, SECTABLE_PTR, SECEND_PTR. |
521 | Returns 0 if OK, 1 on error. */ | |
522 | ||
523 | int | |
0542c86d PA |
524 | build_section_table (struct bfd *some_bfd, struct target_section **start, |
525 | struct target_section **end) | |
c906108c SS |
526 | { |
527 | unsigned count; | |
528 | ||
529 | count = bfd_count_sections (some_bfd); | |
530 | if (*start) | |
b8c9b27d | 531 | xfree (* start); |
8d749320 | 532 | *start = XNEWVEC (struct target_section, count); |
c906108c | 533 | *end = *start; |
c5aa993b | 534 | bfd_map_over_sections (some_bfd, add_to_section_table, (char *) end); |
c906108c | 535 | if (*end > *start + count) |
3e43a32a MS |
536 | internal_error (__FILE__, __LINE__, |
537 | _("failed internal consistency check")); | |
c906108c SS |
538 | /* We could realloc the table, but it probably loses for most files. */ |
539 | return 0; | |
540 | } | |
07b82ea5 PA |
541 | |
542 | /* Add the sections array defined by [SECTIONS..SECTIONS_END[ to the | |
543 | current set of target sections. */ | |
544 | ||
545 | void | |
046ac79f | 546 | add_target_sections (void *owner, |
ed9eebaf | 547 | struct target_section *sections, |
07b82ea5 PA |
548 | struct target_section *sections_end) |
549 | { | |
550 | int count; | |
551 | struct target_section_table *table = current_target_sections; | |
552 | ||
553 | count = sections_end - sections; | |
554 | ||
555 | if (count > 0) | |
556 | { | |
557 | int space = resize_section_table (table, count); | |
ed9eebaf | 558 | int i; |
d7f9d729 | 559 | |
ed9eebaf TT |
560 | for (i = 0; i < count; ++i) |
561 | { | |
562 | table->sections[space + i] = sections[i]; | |
046ac79f | 563 | table->sections[space + i].owner = owner; |
ed9eebaf | 564 | } |
07b82ea5 PA |
565 | |
566 | /* If these are the first file sections we can provide memory | |
567 | from, push the file_stratum target. */ | |
ab16fce8 TT |
568 | if (!target_is_pushed (&exec_ops)) |
569 | push_target (&exec_ops); | |
07b82ea5 PA |
570 | } |
571 | } | |
572 | ||
76ad5e1e NB |
573 | /* Add the sections of OBJFILE to the current set of target sections. */ |
574 | ||
575 | void | |
576 | add_target_sections_of_objfile (struct objfile *objfile) | |
577 | { | |
578 | struct target_section_table *table = current_target_sections; | |
579 | struct obj_section *osect; | |
580 | int space; | |
581 | unsigned count = 0; | |
582 | struct target_section *ts; | |
583 | ||
584 | if (objfile == NULL) | |
585 | return; | |
586 | ||
587 | /* Compute the number of sections to add. */ | |
588 | ALL_OBJFILE_OSECTIONS (objfile, osect) | |
589 | { | |
590 | if (bfd_get_section_size (osect->the_bfd_section) == 0) | |
591 | continue; | |
592 | count++; | |
593 | } | |
594 | ||
595 | if (count == 0) | |
596 | return; | |
597 | ||
598 | space = resize_section_table (table, count); | |
599 | ||
600 | ts = table->sections + space; | |
601 | ||
602 | ALL_OBJFILE_OSECTIONS (objfile, osect) | |
603 | { | |
604 | if (bfd_get_section_size (osect->the_bfd_section) == 0) | |
605 | continue; | |
606 | ||
607 | gdb_assert (ts < table->sections + space + count); | |
608 | ||
609 | ts->addr = obj_section_addr (osect); | |
610 | ts->endaddr = obj_section_endaddr (osect); | |
611 | ts->the_bfd_section = osect->the_bfd_section; | |
612 | ts->owner = (void *) objfile; | |
613 | ||
614 | ts++; | |
615 | } | |
616 | } | |
617 | ||
046ac79f JK |
618 | /* Remove all target sections owned by OWNER. |
619 | OWNER must be the same value passed to add_target_sections. */ | |
07b82ea5 PA |
620 | |
621 | void | |
046ac79f | 622 | remove_target_sections (void *owner) |
07b82ea5 PA |
623 | { |
624 | struct target_section *src, *dest; | |
07b82ea5 PA |
625 | struct target_section_table *table = current_target_sections; |
626 | ||
046ac79f JK |
627 | gdb_assert (owner != NULL); |
628 | ||
07b82ea5 PA |
629 | dest = table->sections; |
630 | for (src = table->sections; src < table->sections_end; src++) | |
046ac79f | 631 | if (src->owner != owner) |
07b82ea5 PA |
632 | { |
633 | /* Keep this section. */ | |
634 | if (dest < src) | |
635 | *dest = *src; | |
636 | dest++; | |
637 | } | |
638 | ||
639 | /* If we've dropped any sections, resize the section table. */ | |
640 | if (dest < src) | |
641 | { | |
642 | int old_count; | |
643 | ||
644 | old_count = resize_section_table (table, dest - src); | |
645 | ||
646 | /* If we don't have any more sections to read memory from, | |
647 | remove the file_stratum target from the stack. */ | |
648 | if (old_count + (dest - src) == 0) | |
6c95b8df PA |
649 | { |
650 | struct program_space *pspace; | |
651 | ||
652 | ALL_PSPACES (pspace) | |
653 | if (pspace->target_sections.sections | |
654 | != pspace->target_sections.sections_end) | |
655 | return; | |
656 | ||
657 | unpush_target (&exec_ops); | |
658 | } | |
07b82ea5 PA |
659 | } |
660 | } | |
661 | ||
c906108c | 662 | \f |
348f8c02 | 663 | |
1ca49d37 YQ |
664 | enum target_xfer_status |
665 | exec_read_partial_read_only (gdb_byte *readbuf, ULONGEST offset, | |
666 | ULONGEST len, ULONGEST *xfered_len) | |
667 | { | |
668 | /* It's unduly pedantic to refuse to look at the executable for | |
669 | read-only pieces; so do the equivalent of readonly regions aka | |
670 | QTro packet. */ | |
671 | if (exec_bfd != NULL) | |
672 | { | |
673 | asection *s; | |
674 | bfd_size_type size; | |
675 | bfd_vma vma; | |
676 | ||
677 | for (s = exec_bfd->sections; s; s = s->next) | |
678 | { | |
679 | if ((s->flags & SEC_LOAD) == 0 | |
680 | || (s->flags & SEC_READONLY) == 0) | |
681 | continue; | |
682 | ||
683 | vma = s->vma; | |
684 | size = bfd_get_section_size (s); | |
685 | if (vma <= offset && offset < (vma + size)) | |
686 | { | |
687 | ULONGEST amt; | |
688 | ||
689 | amt = (vma + size) - offset; | |
690 | if (amt > len) | |
691 | amt = len; | |
692 | ||
693 | amt = bfd_get_section_contents (exec_bfd, s, | |
694 | readbuf, offset - vma, amt); | |
695 | ||
696 | if (amt == 0) | |
697 | return TARGET_XFER_EOF; | |
698 | else | |
699 | { | |
700 | *xfered_len = amt; | |
701 | return TARGET_XFER_OK; | |
702 | } | |
703 | } | |
704 | } | |
705 | } | |
706 | ||
707 | /* Indicate failure to find the requested memory block. */ | |
708 | return TARGET_XFER_E_IO; | |
709 | } | |
710 | ||
a79b1bc6 | 711 | /* Return all read-only memory ranges found in the target section |
5a2eb0ef | 712 | table defined by SECTIONS and SECTIONS_END, starting at (and |
a79b1bc6 | 713 | intersected with) MEMADDR for LEN bytes. */ |
5a2eb0ef | 714 | |
a79b1bc6 SM |
715 | static std::vector<mem_range> |
716 | section_table_available_memory (CORE_ADDR memaddr, ULONGEST len, | |
e6ca34fc PA |
717 | struct target_section *sections, |
718 | struct target_section *sections_end) | |
719 | { | |
a79b1bc6 | 720 | std::vector<mem_range> memory; |
e6ca34fc | 721 | |
a79b1bc6 | 722 | for (target_section *p = sections; p < sections_end; p++) |
e6ca34fc | 723 | { |
2b2848e2 DE |
724 | if ((bfd_get_section_flags (p->the_bfd_section->owner, |
725 | p->the_bfd_section) | |
e6ca34fc PA |
726 | & SEC_READONLY) == 0) |
727 | continue; | |
728 | ||
729 | /* Copy the meta-data, adjusted. */ | |
730 | if (mem_ranges_overlap (p->addr, p->endaddr - p->addr, memaddr, len)) | |
731 | { | |
732 | ULONGEST lo1, hi1, lo2, hi2; | |
e6ca34fc PA |
733 | |
734 | lo1 = memaddr; | |
735 | hi1 = memaddr + len; | |
736 | ||
737 | lo2 = p->addr; | |
738 | hi2 = p->endaddr; | |
739 | ||
a79b1bc6 SM |
740 | CORE_ADDR start = std::max (lo1, lo2); |
741 | int length = std::min (hi1, hi2) - start; | |
e6ca34fc | 742 | |
a79b1bc6 | 743 | memory.emplace_back (start, length); |
e6ca34fc PA |
744 | } |
745 | } | |
746 | ||
747 | return memory; | |
748 | } | |
749 | ||
1ee79381 YQ |
750 | enum target_xfer_status |
751 | section_table_read_available_memory (gdb_byte *readbuf, ULONGEST offset, | |
752 | ULONGEST len, ULONGEST *xfered_len) | |
753 | { | |
a79b1bc6 SM |
754 | target_section_table *table = target_get_section_table (&exec_ops); |
755 | std::vector<mem_range> available_memory | |
756 | = section_table_available_memory (offset, len, | |
757 | table->sections, table->sections_end); | |
1ee79381 | 758 | |
a79b1bc6 | 759 | normalize_mem_ranges (&available_memory); |
1ee79381 | 760 | |
a79b1bc6 | 761 | for (const mem_range &r : available_memory) |
1ee79381 | 762 | { |
a79b1bc6 | 763 | if (mem_ranges_overlap (r.start, r.length, offset, len)) |
1ee79381 YQ |
764 | { |
765 | CORE_ADDR end; | |
766 | enum target_xfer_status status; | |
767 | ||
768 | /* Get the intersection window. */ | |
a79b1bc6 | 769 | end = std::min<CORE_ADDR> (offset + len, r.start + r.length); |
1ee79381 YQ |
770 | |
771 | gdb_assert (end - offset <= len); | |
772 | ||
a79b1bc6 | 773 | if (offset >= r.start) |
1ee79381 YQ |
774 | status = exec_read_partial_read_only (readbuf, offset, |
775 | end - offset, | |
776 | xfered_len); | |
777 | else | |
778 | { | |
a79b1bc6 | 779 | *xfered_len = r.start - offset; |
bc113b4e | 780 | status = TARGET_XFER_UNAVAILABLE; |
1ee79381 | 781 | } |
1ee79381 YQ |
782 | return status; |
783 | } | |
784 | } | |
1ee79381 YQ |
785 | |
786 | *xfered_len = len; | |
bc113b4e | 787 | return TARGET_XFER_UNAVAILABLE; |
1ee79381 YQ |
788 | } |
789 | ||
9b409511 | 790 | enum target_xfer_status |
07b82ea5 | 791 | section_table_xfer_memory_partial (gdb_byte *readbuf, const gdb_byte *writebuf, |
b55e14c7 | 792 | ULONGEST offset, ULONGEST len, |
9b409511 | 793 | ULONGEST *xfered_len, |
07b82ea5 PA |
794 | struct target_section *sections, |
795 | struct target_section *sections_end, | |
796 | const char *section_name) | |
c906108c | 797 | { |
020cc13c | 798 | int res; |
0542c86d | 799 | struct target_section *p; |
07b82ea5 PA |
800 | ULONGEST memaddr = offset; |
801 | ULONGEST memend = memaddr + len; | |
c906108c | 802 | |
b55e14c7 | 803 | if (len == 0) |
3e43a32a MS |
804 | internal_error (__FILE__, __LINE__, |
805 | _("failed internal consistency check")); | |
c906108c | 806 | |
348f8c02 | 807 | for (p = sections; p < sections_end; p++) |
c906108c | 808 | { |
2b2848e2 DE |
809 | struct bfd_section *asect = p->the_bfd_section; |
810 | bfd *abfd = asect->owner; | |
811 | ||
812 | if (section_name && strcmp (section_name, asect->name) != 0) | |
0963b4bd | 813 | continue; /* not the section we need. */ |
c906108c | 814 | if (memaddr >= p->addr) |
3db26b01 JB |
815 | { |
816 | if (memend <= p->endaddr) | |
817 | { | |
818 | /* Entire transfer is within this section. */ | |
07b82ea5 | 819 | if (writebuf) |
2b2848e2 | 820 | res = bfd_set_section_contents (abfd, asect, |
07b82ea5 | 821 | writebuf, memaddr - p->addr, |
85302095 AC |
822 | len); |
823 | else | |
2b2848e2 | 824 | res = bfd_get_section_contents (abfd, asect, |
07b82ea5 | 825 | readbuf, memaddr - p->addr, |
85302095 | 826 | len); |
9b409511 YQ |
827 | |
828 | if (res != 0) | |
829 | { | |
830 | *xfered_len = len; | |
831 | return TARGET_XFER_OK; | |
832 | } | |
833 | else | |
834 | return TARGET_XFER_EOF; | |
3db26b01 JB |
835 | } |
836 | else if (memaddr >= p->endaddr) | |
837 | { | |
838 | /* This section ends before the transfer starts. */ | |
839 | continue; | |
840 | } | |
841 | else | |
842 | { | |
843 | /* This section overlaps the transfer. Just do half. */ | |
844 | len = p->endaddr - memaddr; | |
07b82ea5 | 845 | if (writebuf) |
2b2848e2 | 846 | res = bfd_set_section_contents (abfd, asect, |
07b82ea5 | 847 | writebuf, memaddr - p->addr, |
85302095 AC |
848 | len); |
849 | else | |
2b2848e2 | 850 | res = bfd_get_section_contents (abfd, asect, |
07b82ea5 | 851 | readbuf, memaddr - p->addr, |
85302095 | 852 | len); |
9b409511 YQ |
853 | if (res != 0) |
854 | { | |
855 | *xfered_len = len; | |
856 | return TARGET_XFER_OK; | |
857 | } | |
858 | else | |
859 | return TARGET_XFER_EOF; | |
3db26b01 JB |
860 | } |
861 | } | |
c906108c SS |
862 | } |
863 | ||
9b409511 | 864 | return TARGET_XFER_EOF; /* We can't help. */ |
c906108c | 865 | } |
348f8c02 | 866 | |
f6ac5f3d PA |
867 | struct target_section_table * |
868 | exec_target::get_section_table () | |
348f8c02 | 869 | { |
07b82ea5 | 870 | return current_target_sections; |
348f8c02 PA |
871 | } |
872 | ||
f6ac5f3d PA |
873 | enum target_xfer_status |
874 | exec_target::xfer_partial (enum target_object object, | |
875 | const char *annex, gdb_byte *readbuf, | |
876 | const gdb_byte *writebuf, | |
877 | ULONGEST offset, ULONGEST len, ULONGEST *xfered_len) | |
348f8c02 | 878 | { |
f6ac5f3d | 879 | struct target_section_table *table = get_section_table (); |
07b82ea5 PA |
880 | |
881 | if (object == TARGET_OBJECT_MEMORY) | |
882 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 883 | offset, len, xfered_len, |
07b82ea5 PA |
884 | table->sections, |
885 | table->sections_end, | |
886 | NULL); | |
887 | else | |
2ed4b548 | 888 | return TARGET_XFER_E_IO; |
348f8c02 | 889 | } |
c906108c | 890 | \f |
c5aa993b | 891 | |
c906108c | 892 | void |
07b82ea5 | 893 | print_section_info (struct target_section_table *t, bfd *abfd) |
c906108c | 894 | { |
5af949e3 | 895 | struct gdbarch *gdbarch = gdbarch_from_bfd (abfd); |
0542c86d | 896 | struct target_section *p; |
17a912b6 | 897 | /* FIXME: 16 is not wide enough when gdbarch_addr_bit > 64. */ |
5af949e3 | 898 | int wid = gdbarch_addr_bit (gdbarch) <= 32 ? 8 : 16; |
c906108c | 899 | |
c5aa993b | 900 | printf_filtered ("\t`%s', ", bfd_get_filename (abfd)); |
c906108c | 901 | wrap_here (" "); |
a3f17187 | 902 | printf_filtered (_("file type %s.\n"), bfd_get_target (abfd)); |
c906108c | 903 | if (abfd == exec_bfd) |
51bee8e9 | 904 | { |
3e43a32a MS |
905 | /* gcc-3.4 does not like the initialization in |
906 | <p == t->sections_end>. */ | |
d904de5b | 907 | bfd_vma displacement = 0; |
2f1bdd26 | 908 | bfd_vma entry_point; |
51bee8e9 JK |
909 | |
910 | for (p = t->sections; p < t->sections_end; p++) | |
911 | { | |
2b2848e2 DE |
912 | struct bfd_section *psect = p->the_bfd_section; |
913 | bfd *pbfd = psect->owner; | |
51bee8e9 | 914 | |
2b2848e2 | 915 | if ((bfd_get_section_flags (pbfd, psect) & (SEC_ALLOC | SEC_LOAD)) |
51bee8e9 JK |
916 | != (SEC_ALLOC | SEC_LOAD)) |
917 | continue; | |
918 | ||
2b2848e2 DE |
919 | if (bfd_get_section_vma (pbfd, psect) <= abfd->start_address |
920 | && abfd->start_address < (bfd_get_section_vma (pbfd, psect) | |
921 | + bfd_get_section_size (psect))) | |
51bee8e9 | 922 | { |
2b2848e2 | 923 | displacement = p->addr - bfd_get_section_vma (pbfd, psect); |
51bee8e9 JK |
924 | break; |
925 | } | |
926 | } | |
927 | if (p == t->sections_end) | |
b37520b6 | 928 | warning (_("Cannot find section for the entry point of %s."), |
d904de5b | 929 | bfd_get_filename (abfd)); |
51bee8e9 | 930 | |
2f1bdd26 MGD |
931 | entry_point = gdbarch_addr_bits_remove (gdbarch, |
932 | bfd_get_start_address (abfd) | |
933 | + displacement); | |
51bee8e9 | 934 | printf_filtered (_("\tEntry point: %s\n"), |
2f1bdd26 | 935 | paddress (gdbarch, entry_point)); |
51bee8e9 | 936 | } |
07b82ea5 | 937 | for (p = t->sections; p < t->sections_end; p++) |
c906108c | 938 | { |
2b2848e2 DE |
939 | struct bfd_section *psect = p->the_bfd_section; |
940 | bfd *pbfd = psect->owner; | |
941 | ||
bb599908 PH |
942 | printf_filtered ("\t%s", hex_string_custom (p->addr, wid)); |
943 | printf_filtered (" - %s", hex_string_custom (p->endaddr, wid)); | |
bcf16802 KB |
944 | |
945 | /* FIXME: A format of "08l" is not wide enough for file offsets | |
946 | larger than 4GB. OTOH, making it "016l" isn't desirable either | |
947 | since most output will then be much wider than necessary. It | |
948 | may make sense to test the size of the file and choose the | |
949 | format string accordingly. */ | |
a3f17187 | 950 | /* FIXME: i18n: Need to rewrite this sentence. */ |
c906108c SS |
951 | if (info_verbose) |
952 | printf_filtered (" @ %s", | |
2b2848e2 DE |
953 | hex_string_custom (psect->filepos, 8)); |
954 | printf_filtered (" is %s", bfd_section_name (pbfd, psect)); | |
955 | if (pbfd != abfd) | |
956 | printf_filtered (" in %s", bfd_get_filename (pbfd)); | |
c906108c SS |
957 | printf_filtered ("\n"); |
958 | } | |
959 | } | |
960 | ||
f6ac5f3d PA |
961 | void |
962 | exec_target::files_info () | |
c906108c | 963 | { |
57008375 JK |
964 | if (exec_bfd) |
965 | print_section_info (current_target_sections, exec_bfd); | |
966 | else | |
967 | puts_filtered (_("\t<no file loaded>\n")); | |
c906108c SS |
968 | } |
969 | ||
970 | static void | |
0b39b52e | 971 | set_section_command (const char *args, int from_tty) |
c906108c | 972 | { |
0542c86d | 973 | struct target_section *p; |
0b39b52e | 974 | const char *secname; |
c906108c SS |
975 | unsigned seclen; |
976 | unsigned long secaddr; | |
977 | char secprint[100]; | |
978 | long offset; | |
07b82ea5 | 979 | struct target_section_table *table; |
c906108c SS |
980 | |
981 | if (args == 0) | |
8a3fe4f8 | 982 | error (_("Must specify section name and its virtual address")); |
c906108c | 983 | |
0963b4bd | 984 | /* Parse out section name. */ |
c5aa993b | 985 | for (secname = args; !isspace (*args); args++); |
c906108c SS |
986 | seclen = args - secname; |
987 | ||
0963b4bd | 988 | /* Parse out new virtual address. */ |
c906108c SS |
989 | secaddr = parse_and_eval_address (args); |
990 | ||
07b82ea5 PA |
991 | table = current_target_sections; |
992 | for (p = table->sections; p < table->sections_end; p++) | |
c5aa993b | 993 | { |
57008375 | 994 | if (!strncmp (secname, bfd_section_name (p->bfd, |
3e43a32a | 995 | p->the_bfd_section), seclen) |
57008375 | 996 | && bfd_section_name (p->bfd, p->the_bfd_section)[seclen] == '\0') |
c5aa993b JM |
997 | { |
998 | offset = secaddr - p->addr; | |
999 | p->addr += offset; | |
1000 | p->endaddr += offset; | |
1001 | if (from_tty) | |
f6ac5f3d | 1002 | exec_ops.files_info (); |
c5aa993b JM |
1003 | return; |
1004 | } | |
c906108c | 1005 | } |
c906108c SS |
1006 | if (seclen >= sizeof (secprint)) |
1007 | seclen = sizeof (secprint) - 1; | |
1008 | strncpy (secprint, secname, seclen); | |
1009 | secprint[seclen] = '\0'; | |
8a3fe4f8 | 1010 | error (_("Section %s not found"), secprint); |
c906108c SS |
1011 | } |
1012 | ||
30510692 DJ |
1013 | /* If we can find a section in FILENAME with BFD index INDEX, adjust |
1014 | it to ADDRESS. */ | |
c1bd25fd DJ |
1015 | |
1016 | void | |
1017 | exec_set_section_address (const char *filename, int index, CORE_ADDR address) | |
1018 | { | |
0542c86d | 1019 | struct target_section *p; |
07b82ea5 | 1020 | struct target_section_table *table; |
c1bd25fd | 1021 | |
07b82ea5 PA |
1022 | table = current_target_sections; |
1023 | for (p = table->sections; p < table->sections_end; p++) | |
c1bd25fd | 1024 | { |
2b2848e2 | 1025 | if (filename_cmp (filename, p->the_bfd_section->owner->filename) == 0 |
30510692 | 1026 | && index == p->the_bfd_section->index) |
c1bd25fd | 1027 | { |
30510692 | 1028 | p->endaddr += address - p->addr; |
c1bd25fd | 1029 | p->addr = address; |
c1bd25fd DJ |
1030 | } |
1031 | } | |
1032 | } | |
1033 | ||
57810aa7 | 1034 | bool |
f6ac5f3d | 1035 | exec_target::has_memory () |
c35b1492 PA |
1036 | { |
1037 | /* We can provide memory if we have any file/target sections to read | |
1038 | from. */ | |
1039 | return (current_target_sections->sections | |
1040 | != current_target_sections->sections_end); | |
1041 | } | |
1042 | ||
f6ac5f3d PA |
1043 | char * |
1044 | exec_target::make_corefile_notes (bfd *obfd, int *note_size) | |
83814951 TT |
1045 | { |
1046 | error (_("Can't create a corefile")); | |
1047 | } | |
be4d1333 | 1048 | |
f6ac5f3d PA |
1049 | int |
1050 | exec_target::find_memory_regions (find_memory_region_ftype func, void *data) | |
c906108c | 1051 | { |
f6ac5f3d | 1052 | return objfile_find_memory_regions (this, func, data); |
c906108c SS |
1053 | } |
1054 | ||
1055 | void | |
fba45db2 | 1056 | _initialize_exec (void) |
c906108c SS |
1057 | { |
1058 | struct cmd_list_element *c; | |
1059 | ||
c906108c SS |
1060 | if (!dbx_commands) |
1061 | { | |
1a966eab AC |
1062 | c = add_cmd ("file", class_files, file_command, _("\ |
1063 | Use FILE as program to be debugged.\n\ | |
c906108c SS |
1064 | It is read for its symbols, for getting the contents of pure memory,\n\ |
1065 | and it is the program executed when you use the `run' command.\n\ | |
1066 | If FILE cannot be found as specified, your execution directory path\n\ | |
1067 | ($PATH) is searched for a command of that name.\n\ | |
1a966eab | 1068 | No arg means to have no executable file and no symbols."), &cmdlist); |
5ba2abeb | 1069 | set_cmd_completer (c, filename_completer); |
c906108c SS |
1070 | } |
1071 | ||
1a966eab AC |
1072 | c = add_cmd ("exec-file", class_files, exec_file_command, _("\ |
1073 | Use FILE as program for getting contents of pure memory.\n\ | |
c906108c SS |
1074 | If FILE cannot be found as specified, your execution directory path\n\ |
1075 | is searched for a command of that name.\n\ | |
1a966eab | 1076 | No arg means have no executable file."), &cmdlist); |
5ba2abeb | 1077 | set_cmd_completer (c, filename_completer); |
c906108c | 1078 | |
1bedd215 AC |
1079 | add_com ("section", class_files, set_section_command, _("\ |
1080 | Change the base address of section SECTION of the exec file to ADDR.\n\ | |
c906108c SS |
1081 | This can be used if the exec file does not contain section addresses,\n\ |
1082 | (such as in the a.out format), or when the addresses specified in the\n\ | |
1083 | file itself are wrong. Each section must be changed separately. The\n\ | |
1bedd215 | 1084 | ``info files'' command lists all the sections and their addresses.")); |
c906108c | 1085 | |
5bf193a2 AC |
1086 | add_setshow_boolean_cmd ("write", class_support, &write_files, _("\ |
1087 | Set writing into executable and core files."), _("\ | |
1088 | Show writing into executable and core files."), NULL, | |
1089 | NULL, | |
920d2a44 | 1090 | show_write_files, |
5bf193a2 | 1091 | &setlist, &showlist); |
c5aa993b | 1092 | |
9852c492 | 1093 | add_target_with_completer (&exec_ops, filename_completer); |
c906108c | 1094 | } |