Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Work with executable files, for GDB. |
4646aa9d | 2 | |
42a4f53d | 3 | Copyright (C) 1988-2019 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" | |
d55e5aa6 | 22 | #include "inferior.h" |
4de283e4 TT |
23 | #include "target.h" |
24 | #include "gdbcmd.h" | |
c906108c | 25 | #include "language.h" |
4de283e4 TT |
26 | #include "filenames.h" |
27 | #include "symfile.h" | |
c906108c | 28 | #include "objfiles.h" |
4de283e4 TT |
29 | #include "completer.h" |
30 | #include "value.h" | |
31 | #include "exec.h" | |
76727919 | 32 | #include "observable.h" |
4de283e4 TT |
33 | #include "arch-utils.h" |
34 | #include "gdbthread.h" | |
6c95b8df | 35 | #include "progspace.h" |
4de283e4 TT |
36 | #include "gdb_bfd.h" |
37 | #include "gcore.h" | |
38 | #include "source.h" | |
39 | ||
40 | #include <fcntl.h> | |
dbda9972 | 41 | #include "readline/readline.h" |
4de283e4 TT |
42 | #include "gdbcore.h" |
43 | ||
44 | #include <ctype.h> | |
45 | #include <sys/stat.h> | |
a9a5a3d1 | 46 | #include "solist.h" |
4de283e4 TT |
47 | #include <algorithm> |
48 | #include "common/pathstuff.h" | |
c906108c | 49 | |
1d8b34a7 | 50 | void (*deprecated_file_changed_hook) (const char *); |
c906108c | 51 | |
d9f719f1 PA |
52 | static const target_info exec_target_info = { |
53 | "exec", | |
54 | N_("Local exec file"), | |
55 | N_("Use an executable file as a target.\n\ | |
56 | Specify the filename of the executable file.") | |
57 | }; | |
58 | ||
c906108c SS |
59 | /* The target vector for executable files. */ |
60 | ||
f6ac5f3d PA |
61 | struct exec_target final : public target_ops |
62 | { | |
d9f719f1 PA |
63 | const target_info &info () const override |
64 | { return exec_target_info; } | |
f6ac5f3d | 65 | |
66b4deae PA |
66 | strata stratum () const override { return file_stratum; } |
67 | ||
f6ac5f3d PA |
68 | void close () override; |
69 | enum target_xfer_status xfer_partial (enum target_object object, | |
70 | const char *annex, | |
71 | gdb_byte *readbuf, | |
72 | const gdb_byte *writebuf, | |
73 | ULONGEST offset, ULONGEST len, | |
74 | ULONGEST *xfered_len) override; | |
75 | struct target_section_table *get_section_table () override; | |
76 | void files_info () override; | |
77 | ||
57810aa7 | 78 | bool has_memory () override; |
f6ac5f3d PA |
79 | char *make_corefile_notes (bfd *, int *) override; |
80 | int find_memory_regions (find_memory_region_ftype func, void *data) override; | |
81 | }; | |
82 | ||
83 | static exec_target exec_ops; | |
c906108c | 84 | |
c906108c SS |
85 | /* Whether to open exec and core files read-only or read-write. */ |
86 | ||
87 | int write_files = 0; | |
920d2a44 AC |
88 | static void |
89 | show_write_files (struct ui_file *file, int from_tty, | |
90 | struct cmd_list_element *c, const char *value) | |
91 | { | |
92 | fprintf_filtered (file, _("Writing into executable and core files is %s.\n"), | |
93 | value); | |
94 | } | |
95 | ||
c906108c | 96 | |
d9f719f1 PA |
97 | static void |
98 | exec_target_open (const char *args, int from_tty) | |
1adeb98a FN |
99 | { |
100 | target_preopen (from_tty); | |
101 | exec_file_attach (args, from_tty); | |
102 | } | |
103 | ||
07b82ea5 PA |
104 | /* Close and clear exec_bfd. If we end up with no target sections to |
105 | read memory from, this unpushes the exec_ops target. */ | |
106 | ||
6c95b8df PA |
107 | void |
108 | exec_close (void) | |
07b82ea5 PA |
109 | { |
110 | if (exec_bfd) | |
111 | { | |
112 | bfd *abfd = exec_bfd; | |
07b82ea5 | 113 | |
cbb099e8 | 114 | gdb_bfd_unref (abfd); |
07b82ea5 PA |
115 | |
116 | /* Removing target sections may close the exec_ops target. | |
117 | Clear exec_bfd before doing so to prevent recursion. */ | |
118 | exec_bfd = NULL; | |
119 | exec_bfd_mtime = 0; | |
120 | ||
046ac79f | 121 | remove_target_sections (&exec_bfd); |
1f0c4988 JK |
122 | |
123 | xfree (exec_filename); | |
124 | exec_filename = NULL; | |
07b82ea5 PA |
125 | } |
126 | } | |
127 | ||
6c95b8df PA |
128 | /* This is the target_close implementation. Clears all target |
129 | sections and closes all executable bfds from all program spaces. */ | |
130 | ||
f6ac5f3d PA |
131 | void |
132 | exec_target::close () | |
c906108c | 133 | { |
ab16fce8 | 134 | struct program_space *ss; |
5ed8105e | 135 | scoped_restore_current_program_space restore_pspace; |
6c95b8df | 136 | |
ab16fce8 | 137 | ALL_PSPACES (ss) |
5ed8105e PA |
138 | { |
139 | set_current_program_space (ss); | |
140 | clear_section_table (current_target_sections); | |
141 | exec_close (); | |
142 | } | |
c906108c SS |
143 | } |
144 | ||
f6ac5f3d | 145 | /* See gdbcore.h. */ |
a10de604 GB |
146 | |
147 | void | |
ecf45d2c SL |
148 | try_open_exec_file (const char *exec_file_host, struct inferior *inf, |
149 | symfile_add_flags add_flags) | |
a10de604 | 150 | { |
57d1de9c | 151 | struct gdb_exception prev_err = exception_none; |
a10de604 | 152 | |
57d1de9c LM |
153 | /* exec_file_attach and symbol_file_add_main may throw an error if the file |
154 | cannot be opened either locally or remotely. | |
155 | ||
156 | This happens for example, when the file is first found in the local | |
157 | sysroot (above), and then disappears (a TOCTOU race), or when it doesn't | |
158 | exist in the target filesystem, or when the file does exist, but | |
159 | is not readable. | |
88178e82 | 160 | |
57d1de9c LM |
161 | Even without a symbol file, the remote-based debugging session should |
162 | continue normally instead of ending abruptly. Hence we catch thrown | |
163 | errors/exceptions in the following code. */ | |
164 | TRY | |
165 | { | |
ecf45d2c SL |
166 | /* We must do this step even if exec_file_host is NULL, so that |
167 | exec_file_attach will clear state. */ | |
168 | exec_file_attach (exec_file_host, add_flags & SYMFILE_VERBOSE); | |
57d1de9c LM |
169 | } |
170 | CATCH (err, RETURN_MASK_ERROR) | |
171 | { | |
172 | if (err.message != NULL) | |
3d6e9d23 | 173 | warning ("%s", err.what ()); |
57d1de9c LM |
174 | |
175 | prev_err = err; | |
57d1de9c LM |
176 | } |
177 | END_CATCH | |
178 | ||
ecf45d2c | 179 | if (exec_file_host != NULL) |
57d1de9c | 180 | { |
ecf45d2c SL |
181 | TRY |
182 | { | |
183 | symbol_file_add_main (exec_file_host, add_flags); | |
184 | } | |
185 | CATCH (err, RETURN_MASK_ERROR) | |
186 | { | |
187 | if (!exception_print_same (prev_err, err)) | |
3d6e9d23 | 188 | warning ("%s", err.what ()); |
ecf45d2c SL |
189 | } |
190 | END_CATCH | |
57d1de9c | 191 | } |
ecf45d2c SL |
192 | } |
193 | ||
194 | /* See gdbcore.h. */ | |
195 | ||
196 | void | |
197 | exec_file_locate_attach (int pid, int defer_bp_reset, int from_tty) | |
198 | { | |
797bc1cb | 199 | char *exec_file_target; |
ecf45d2c SL |
200 | symfile_add_flags add_flags = 0; |
201 | ||
202 | /* Do nothing if we already have an executable filename. */ | |
203 | if (get_exec_file (0) != NULL) | |
204 | return; | |
205 | ||
206 | /* Try to determine a filename from the process itself. */ | |
207 | exec_file_target = target_pid_to_exec_file (pid); | |
208 | if (exec_file_target == NULL) | |
57d1de9c | 209 | { |
ecf45d2c SL |
210 | warning (_("No executable has been specified and target does not " |
211 | "support\n" | |
212 | "determining executable automatically. " | |
213 | "Try using the \"file\" command.")); | |
214 | return; | |
57d1de9c | 215 | } |
88178e82 | 216 | |
797bc1cb TT |
217 | gdb::unique_xmalloc_ptr<char> exec_file_host |
218 | = exec_file_find (exec_file_target, NULL); | |
ecf45d2c SL |
219 | |
220 | if (defer_bp_reset) | |
221 | add_flags |= SYMFILE_DEFER_BP_RESET; | |
222 | ||
223 | if (from_tty) | |
224 | add_flags |= SYMFILE_VERBOSE; | |
225 | ||
226 | /* Attempt to open the exec file. */ | |
797bc1cb | 227 | try_open_exec_file (exec_file_host.get (), current_inferior (), add_flags); |
a10de604 GB |
228 | } |
229 | ||
907083d1 | 230 | /* Set FILENAME as the new exec file. |
c906108c | 231 | |
c5aa993b JM |
232 | This function is intended to be behave essentially the same |
233 | as exec_file_command, except that the latter will detect when | |
234 | a target is being debugged, and will ask the user whether it | |
235 | should be shut down first. (If the answer is "no", then the | |
236 | new file is ignored.) | |
c906108c | 237 | |
c5aa993b JM |
238 | This file is used by exec_file_command, to do the work of opening |
239 | and processing the exec file after any prompting has happened. | |
c906108c | 240 | |
c5aa993b JM |
241 | And, it is used by child_attach, when the attach command was |
242 | given a pid but not a exec pathname, and the attach command could | |
243 | figure out the pathname from the pid. (In this case, we shouldn't | |
244 | ask the user whether the current target should be shut down -- | |
907083d1 | 245 | we're supplying the exec pathname late for good reason.) */ |
c906108c SS |
246 | |
247 | void | |
5f08566b | 248 | exec_file_attach (const char *filename, int from_tty) |
c906108c | 249 | { |
9b333ba3 TT |
250 | /* First, acquire a reference to the current exec_bfd. We release |
251 | this at the end of the function; but acquiring it now lets the | |
252 | BFD cache return it if this call refers to the same file. */ | |
1831a9f9 | 253 | gdb_bfd_ref_ptr exec_bfd_holder = gdb_bfd_ref_ptr::new_reference (exec_bfd); |
192b62ce | 254 | |
c906108c | 255 | /* Remove any previous exec file. */ |
6c95b8df | 256 | exec_close (); |
c906108c SS |
257 | |
258 | /* Now open and digest the file the user requested, if any. */ | |
259 | ||
1adeb98a FN |
260 | if (!filename) |
261 | { | |
262 | if (from_tty) | |
a3f17187 | 263 | printf_unfiltered (_("No executable file now.\n")); |
7a107747 DJ |
264 | |
265 | set_gdbarch_from_file (NULL); | |
1adeb98a FN |
266 | } |
267 | else | |
c906108c | 268 | { |
64c0b5de | 269 | int load_via_target = 0; |
14278e1f | 270 | const char *scratch_pathname, *canonical_pathname; |
c906108c | 271 | int scratch_chan; |
07b82ea5 | 272 | struct target_section *sections = NULL, *sections_end = NULL; |
d18b8b7a | 273 | char **matching; |
c5aa993b | 274 | |
64c0b5de GB |
275 | if (is_target_filename (filename)) |
276 | { | |
277 | if (target_filesystem_is_local ()) | |
278 | filename += strlen (TARGET_SYSROOT_PREFIX); | |
279 | else | |
280 | load_via_target = 1; | |
281 | } | |
282 | ||
14278e1f | 283 | gdb::unique_xmalloc_ptr<char> canonical_storage, scratch_storage; |
64c0b5de | 284 | if (load_via_target) |
c5aa993b | 285 | { |
64c0b5de GB |
286 | /* gdb_bfd_fopen does not support "target:" filenames. */ |
287 | if (write_files) | |
288 | warning (_("writing into executable files is " | |
289 | "not supported for %s sysroots"), | |
290 | TARGET_SYSROOT_PREFIX); | |
291 | ||
14278e1f | 292 | scratch_pathname = filename; |
64c0b5de | 293 | scratch_chan = -1; |
64c0b5de | 294 | canonical_pathname = scratch_pathname; |
c5aa993b | 295 | } |
64c0b5de GB |
296 | else |
297 | { | |
298 | scratch_chan = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, | |
299 | filename, write_files ? | |
300 | O_RDWR | O_BINARY : O_RDONLY | O_BINARY, | |
e0cc99a6 | 301 | &scratch_storage); |
64c0b5de GB |
302 | #if defined(__GO32__) || defined(_WIN32) || defined(__CYGWIN__) |
303 | if (scratch_chan < 0) | |
304 | { | |
0ae1c716 | 305 | char *exename = (char *) alloca (strlen (filename) + 5); |
64c0b5de GB |
306 | |
307 | strcat (strcpy (exename, filename), ".exe"); | |
308 | scratch_chan = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, | |
309 | exename, write_files ? | |
310 | O_RDWR | O_BINARY | |
311 | : O_RDONLY | O_BINARY, | |
e0cc99a6 | 312 | &scratch_storage); |
64c0b5de | 313 | } |
c906108c | 314 | #endif |
64c0b5de GB |
315 | if (scratch_chan < 0) |
316 | perror_with_name (filename); | |
a4453b7e | 317 | |
e0cc99a6 | 318 | scratch_pathname = scratch_storage.get (); |
a4453b7e | 319 | |
64c0b5de GB |
320 | /* gdb_bfd_open (and its variants) prefers canonicalized |
321 | pathname for better BFD caching. */ | |
14278e1f TT |
322 | canonical_storage = gdb_realpath (scratch_pathname); |
323 | canonical_pathname = canonical_storage.get (); | |
64c0b5de | 324 | } |
1f0c4988 | 325 | |
192b62ce | 326 | gdb_bfd_ref_ptr temp; |
64c0b5de | 327 | if (write_files && !load_via_target) |
192b62ce TT |
328 | temp = gdb_bfd_fopen (canonical_pathname, gnutarget, |
329 | FOPEN_RUB, scratch_chan); | |
1c00ec6b | 330 | else |
192b62ce TT |
331 | temp = gdb_bfd_open (canonical_pathname, gnutarget, scratch_chan); |
332 | exec_bfd = temp.release (); | |
c906108c SS |
333 | |
334 | if (!exec_bfd) | |
9fe4a216 | 335 | { |
d5131498 | 336 | error (_("\"%s\": could not open as an executable file: %s."), |
9fe4a216 TT |
337 | scratch_pathname, bfd_errmsg (bfd_get_error ())); |
338 | } | |
c906108c | 339 | |
64c0b5de GB |
340 | /* gdb_realpath_keepfile resolves symlinks on the local |
341 | filesystem and so cannot be used for "target:" files. */ | |
1f0c4988 | 342 | gdb_assert (exec_filename == NULL); |
64c0b5de GB |
343 | if (load_via_target) |
344 | exec_filename = xstrdup (bfd_get_filename (exec_bfd)); | |
345 | else | |
4971c9a7 | 346 | exec_filename = gdb_realpath_keepfile (scratch_pathname).release (); |
1f0c4988 | 347 | |
d18b8b7a | 348 | if (!bfd_check_format_matches (exec_bfd, bfd_object, &matching)) |
c906108c SS |
349 | { |
350 | /* Make sure to close exec_bfd, or else "run" might try to use | |
351 | it. */ | |
6c95b8df | 352 | exec_close (); |
8a3fe4f8 | 353 | error (_("\"%s\": not in executable format: %s"), |
d18b8b7a | 354 | scratch_pathname, |
803c08d0 | 355 | gdb_bfd_errmsg (bfd_get_error (), matching).c_str ()); |
c906108c SS |
356 | } |
357 | ||
07b82ea5 | 358 | if (build_section_table (exec_bfd, §ions, §ions_end)) |
c906108c SS |
359 | { |
360 | /* Make sure to close exec_bfd, or else "run" might try to use | |
361 | it. */ | |
6c95b8df | 362 | exec_close (); |
8a3fe4f8 | 363 | error (_("\"%s\": can't find the file sections: %s"), |
c906108c SS |
364 | scratch_pathname, bfd_errmsg (bfd_get_error ())); |
365 | } | |
366 | ||
c04ea773 DJ |
367 | exec_bfd_mtime = bfd_get_mtime (exec_bfd); |
368 | ||
c906108c SS |
369 | validate_files (); |
370 | ||
371 | set_gdbarch_from_file (exec_bfd); | |
372 | ||
07b82ea5 | 373 | /* Add the executable's sections to the current address spaces' |
6c95b8df PA |
374 | list of sections. This possibly pushes the exec_ops |
375 | target. */ | |
ed9eebaf | 376 | add_target_sections (&exec_bfd, sections, sections_end); |
07b82ea5 | 377 | xfree (sections); |
c906108c SS |
378 | |
379 | /* Tell display code (if any) about the changed file name. */ | |
9a4105ab AC |
380 | if (deprecated_exec_file_display_hook) |
381 | (*deprecated_exec_file_display_hook) (filename); | |
c906108c | 382 | } |
9b333ba3 | 383 | |
ce7d4522 | 384 | bfd_cache_close_all (); |
76727919 | 385 | gdb::observers::executable_changed.notify (); |
c906108c SS |
386 | } |
387 | ||
388 | /* Process the first arg in ARGS as the new exec file. | |
389 | ||
c5aa993b JM |
390 | Note that we have to explicitly ignore additional args, since we can |
391 | be called from file_command(), which also calls symbol_file_command() | |
1adeb98a FN |
392 | which can take multiple args. |
393 | ||
0963b4bd | 394 | If ARGS is NULL, we just want to close the exec file. */ |
c906108c | 395 | |
1adeb98a | 396 | static void |
1d8b34a7 | 397 | exec_file_command (const char *args, int from_tty) |
c906108c | 398 | { |
4c42eaff DJ |
399 | if (from_tty && target_has_execution |
400 | && !query (_("A program is being debugged already.\n" | |
401 | "Are you sure you want to change the file? "))) | |
402 | error (_("File not changed.")); | |
1adeb98a FN |
403 | |
404 | if (args) | |
405 | { | |
406 | /* Scan through the args and pick up the first non option arg | |
407 | as the filename. */ | |
408 | ||
773a1edc TT |
409 | gdb_argv built_argv (args); |
410 | char **argv = built_argv.get (); | |
1adeb98a FN |
411 | |
412 | for (; (*argv != NULL) && (**argv == '-'); argv++) | |
413 | {; | |
414 | } | |
415 | if (*argv == NULL) | |
8a3fe4f8 | 416 | error (_("No executable file name was specified")); |
1adeb98a | 417 | |
773a1edc TT |
418 | gdb::unique_xmalloc_ptr<char> filename (tilde_expand (*argv)); |
419 | exec_file_attach (filename.get (), from_tty); | |
1adeb98a FN |
420 | } |
421 | else | |
422 | exec_file_attach (NULL, from_tty); | |
c906108c SS |
423 | } |
424 | ||
0963b4bd | 425 | /* Set both the exec file and the symbol file, in one command. |
c906108c SS |
426 | What a novelty. Why did GDB go through four major releases before this |
427 | command was added? */ | |
428 | ||
429 | static void | |
1d8b34a7 | 430 | file_command (const char *arg, int from_tty) |
c906108c SS |
431 | { |
432 | /* FIXME, if we lose on reading the symbol file, we should revert | |
433 | the exec file, but that's rough. */ | |
434 | exec_file_command (arg, from_tty); | |
435 | symbol_file_command (arg, from_tty); | |
9a4105ab AC |
436 | if (deprecated_file_changed_hook) |
437 | deprecated_file_changed_hook (arg); | |
c906108c | 438 | } |
c906108c | 439 | \f |
c5aa993b | 440 | |
0963b4bd | 441 | /* Locate all mappable sections of a BFD file. |
c906108c SS |
442 | table_pp_char is a char * to get it through bfd_map_over_sections; |
443 | we cast it back to its proper type. */ | |
444 | ||
445 | static void | |
7be0c536 AC |
446 | add_to_section_table (bfd *abfd, struct bfd_section *asect, |
447 | void *table_pp_char) | |
c906108c | 448 | { |
0542c86d | 449 | struct target_section **table_pp = (struct target_section **) table_pp_char; |
c906108c SS |
450 | flagword aflag; |
451 | ||
2b2848e2 DE |
452 | gdb_assert (abfd == asect->owner); |
453 | ||
0f5d55d8 JB |
454 | /* Check the section flags, but do not discard zero-length sections, since |
455 | some symbols may still be attached to this section. For instance, we | |
456 | encountered on sparc-solaris 2.10 a shared library with an empty .bss | |
457 | section to which a symbol named "_end" was attached. The address | |
458 | of this symbol still needs to be relocated. */ | |
c906108c SS |
459 | aflag = bfd_get_section_flags (abfd, asect); |
460 | if (!(aflag & SEC_ALLOC)) | |
461 | return; | |
0f5d55d8 | 462 | |
046ac79f | 463 | (*table_pp)->owner = NULL; |
c906108c SS |
464 | (*table_pp)->the_bfd_section = asect; |
465 | (*table_pp)->addr = bfd_section_vma (abfd, asect); | |
466 | (*table_pp)->endaddr = (*table_pp)->addr + bfd_section_size (abfd, asect); | |
467 | (*table_pp)++; | |
468 | } | |
469 | ||
a5b1fd27 DE |
470 | /* See exec.h. */ |
471 | ||
472 | void | |
473 | clear_section_table (struct target_section_table *table) | |
474 | { | |
475 | xfree (table->sections); | |
476 | table->sections = table->sections_end = NULL; | |
477 | } | |
478 | ||
479 | /* Resize section table TABLE by ADJUSTMENT. | |
480 | ADJUSTMENT may be negative, in which case the caller must have already | |
481 | removed the sections being deleted. | |
482 | Returns the old size. */ | |
483 | ||
484 | static int | |
485 | resize_section_table (struct target_section_table *table, int adjustment) | |
07b82ea5 | 486 | { |
07b82ea5 PA |
487 | int old_count; |
488 | int new_count; | |
489 | ||
07b82ea5 PA |
490 | old_count = table->sections_end - table->sections; |
491 | ||
a5b1fd27 | 492 | new_count = adjustment + old_count; |
07b82ea5 PA |
493 | |
494 | if (new_count) | |
495 | { | |
224c3ddb SM |
496 | table->sections = XRESIZEVEC (struct target_section, table->sections, |
497 | new_count); | |
07b82ea5 PA |
498 | table->sections_end = table->sections + new_count; |
499 | } | |
500 | else | |
a5b1fd27 | 501 | clear_section_table (table); |
07b82ea5 PA |
502 | |
503 | return old_count; | |
504 | } | |
505 | ||
c906108c SS |
506 | /* Builds a section table, given args BFD, SECTABLE_PTR, SECEND_PTR. |
507 | Returns 0 if OK, 1 on error. */ | |
508 | ||
509 | int | |
0542c86d PA |
510 | build_section_table (struct bfd *some_bfd, struct target_section **start, |
511 | struct target_section **end) | |
c906108c SS |
512 | { |
513 | unsigned count; | |
514 | ||
515 | count = bfd_count_sections (some_bfd); | |
516 | if (*start) | |
b8c9b27d | 517 | xfree (* start); |
8d749320 | 518 | *start = XNEWVEC (struct target_section, count); |
c906108c | 519 | *end = *start; |
c5aa993b | 520 | bfd_map_over_sections (some_bfd, add_to_section_table, (char *) end); |
c906108c | 521 | if (*end > *start + count) |
3e43a32a MS |
522 | internal_error (__FILE__, __LINE__, |
523 | _("failed internal consistency check")); | |
c906108c SS |
524 | /* We could realloc the table, but it probably loses for most files. */ |
525 | return 0; | |
526 | } | |
07b82ea5 PA |
527 | |
528 | /* Add the sections array defined by [SECTIONS..SECTIONS_END[ to the | |
529 | current set of target sections. */ | |
530 | ||
531 | void | |
046ac79f | 532 | add_target_sections (void *owner, |
ed9eebaf | 533 | struct target_section *sections, |
07b82ea5 PA |
534 | struct target_section *sections_end) |
535 | { | |
536 | int count; | |
537 | struct target_section_table *table = current_target_sections; | |
538 | ||
539 | count = sections_end - sections; | |
540 | ||
541 | if (count > 0) | |
542 | { | |
543 | int space = resize_section_table (table, count); | |
ed9eebaf | 544 | int i; |
d7f9d729 | 545 | |
ed9eebaf TT |
546 | for (i = 0; i < count; ++i) |
547 | { | |
548 | table->sections[space + i] = sections[i]; | |
046ac79f | 549 | table->sections[space + i].owner = owner; |
ed9eebaf | 550 | } |
07b82ea5 PA |
551 | |
552 | /* If these are the first file sections we can provide memory | |
553 | from, push the file_stratum target. */ | |
ab16fce8 TT |
554 | if (!target_is_pushed (&exec_ops)) |
555 | push_target (&exec_ops); | |
07b82ea5 PA |
556 | } |
557 | } | |
558 | ||
76ad5e1e NB |
559 | /* Add the sections of OBJFILE to the current set of target sections. */ |
560 | ||
561 | void | |
562 | add_target_sections_of_objfile (struct objfile *objfile) | |
563 | { | |
564 | struct target_section_table *table = current_target_sections; | |
565 | struct obj_section *osect; | |
566 | int space; | |
567 | unsigned count = 0; | |
568 | struct target_section *ts; | |
569 | ||
570 | if (objfile == NULL) | |
571 | return; | |
572 | ||
573 | /* Compute the number of sections to add. */ | |
574 | ALL_OBJFILE_OSECTIONS (objfile, osect) | |
575 | { | |
576 | if (bfd_get_section_size (osect->the_bfd_section) == 0) | |
577 | continue; | |
578 | count++; | |
579 | } | |
580 | ||
581 | if (count == 0) | |
582 | return; | |
583 | ||
584 | space = resize_section_table (table, count); | |
585 | ||
586 | ts = table->sections + space; | |
587 | ||
588 | ALL_OBJFILE_OSECTIONS (objfile, osect) | |
589 | { | |
590 | if (bfd_get_section_size (osect->the_bfd_section) == 0) | |
591 | continue; | |
592 | ||
593 | gdb_assert (ts < table->sections + space + count); | |
594 | ||
595 | ts->addr = obj_section_addr (osect); | |
596 | ts->endaddr = obj_section_endaddr (osect); | |
597 | ts->the_bfd_section = osect->the_bfd_section; | |
598 | ts->owner = (void *) objfile; | |
599 | ||
600 | ts++; | |
601 | } | |
602 | } | |
603 | ||
046ac79f JK |
604 | /* Remove all target sections owned by OWNER. |
605 | OWNER must be the same value passed to add_target_sections. */ | |
07b82ea5 PA |
606 | |
607 | void | |
046ac79f | 608 | remove_target_sections (void *owner) |
07b82ea5 PA |
609 | { |
610 | struct target_section *src, *dest; | |
07b82ea5 PA |
611 | struct target_section_table *table = current_target_sections; |
612 | ||
046ac79f JK |
613 | gdb_assert (owner != NULL); |
614 | ||
07b82ea5 PA |
615 | dest = table->sections; |
616 | for (src = table->sections; src < table->sections_end; src++) | |
046ac79f | 617 | if (src->owner != owner) |
07b82ea5 PA |
618 | { |
619 | /* Keep this section. */ | |
620 | if (dest < src) | |
621 | *dest = *src; | |
622 | dest++; | |
623 | } | |
624 | ||
625 | /* If we've dropped any sections, resize the section table. */ | |
626 | if (dest < src) | |
627 | { | |
628 | int old_count; | |
629 | ||
630 | old_count = resize_section_table (table, dest - src); | |
631 | ||
632 | /* If we don't have any more sections to read memory from, | |
633 | remove the file_stratum target from the stack. */ | |
634 | if (old_count + (dest - src) == 0) | |
6c95b8df PA |
635 | { |
636 | struct program_space *pspace; | |
637 | ||
638 | ALL_PSPACES (pspace) | |
639 | if (pspace->target_sections.sections | |
640 | != pspace->target_sections.sections_end) | |
641 | return; | |
642 | ||
643 | unpush_target (&exec_ops); | |
644 | } | |
07b82ea5 PA |
645 | } |
646 | } | |
647 | ||
c906108c | 648 | \f |
348f8c02 | 649 | |
1ca49d37 YQ |
650 | enum target_xfer_status |
651 | exec_read_partial_read_only (gdb_byte *readbuf, ULONGEST offset, | |
652 | ULONGEST len, ULONGEST *xfered_len) | |
653 | { | |
654 | /* It's unduly pedantic to refuse to look at the executable for | |
655 | read-only pieces; so do the equivalent of readonly regions aka | |
656 | QTro packet. */ | |
657 | if (exec_bfd != NULL) | |
658 | { | |
659 | asection *s; | |
660 | bfd_size_type size; | |
661 | bfd_vma vma; | |
662 | ||
663 | for (s = exec_bfd->sections; s; s = s->next) | |
664 | { | |
665 | if ((s->flags & SEC_LOAD) == 0 | |
666 | || (s->flags & SEC_READONLY) == 0) | |
667 | continue; | |
668 | ||
669 | vma = s->vma; | |
670 | size = bfd_get_section_size (s); | |
671 | if (vma <= offset && offset < (vma + size)) | |
672 | { | |
673 | ULONGEST amt; | |
674 | ||
675 | amt = (vma + size) - offset; | |
676 | if (amt > len) | |
677 | amt = len; | |
678 | ||
679 | amt = bfd_get_section_contents (exec_bfd, s, | |
680 | readbuf, offset - vma, amt); | |
681 | ||
682 | if (amt == 0) | |
683 | return TARGET_XFER_EOF; | |
684 | else | |
685 | { | |
686 | *xfered_len = amt; | |
687 | return TARGET_XFER_OK; | |
688 | } | |
689 | } | |
690 | } | |
691 | } | |
692 | ||
693 | /* Indicate failure to find the requested memory block. */ | |
694 | return TARGET_XFER_E_IO; | |
695 | } | |
696 | ||
a79b1bc6 | 697 | /* Return all read-only memory ranges found in the target section |
5a2eb0ef | 698 | table defined by SECTIONS and SECTIONS_END, starting at (and |
a79b1bc6 | 699 | intersected with) MEMADDR for LEN bytes. */ |
5a2eb0ef | 700 | |
a79b1bc6 SM |
701 | static std::vector<mem_range> |
702 | section_table_available_memory (CORE_ADDR memaddr, ULONGEST len, | |
e6ca34fc PA |
703 | struct target_section *sections, |
704 | struct target_section *sections_end) | |
705 | { | |
a79b1bc6 | 706 | std::vector<mem_range> memory; |
e6ca34fc | 707 | |
a79b1bc6 | 708 | for (target_section *p = sections; p < sections_end; p++) |
e6ca34fc | 709 | { |
2b2848e2 DE |
710 | if ((bfd_get_section_flags (p->the_bfd_section->owner, |
711 | p->the_bfd_section) | |
e6ca34fc PA |
712 | & SEC_READONLY) == 0) |
713 | continue; | |
714 | ||
715 | /* Copy the meta-data, adjusted. */ | |
716 | if (mem_ranges_overlap (p->addr, p->endaddr - p->addr, memaddr, len)) | |
717 | { | |
718 | ULONGEST lo1, hi1, lo2, hi2; | |
e6ca34fc PA |
719 | |
720 | lo1 = memaddr; | |
721 | hi1 = memaddr + len; | |
722 | ||
723 | lo2 = p->addr; | |
724 | hi2 = p->endaddr; | |
725 | ||
a79b1bc6 SM |
726 | CORE_ADDR start = std::max (lo1, lo2); |
727 | int length = std::min (hi1, hi2) - start; | |
e6ca34fc | 728 | |
a79b1bc6 | 729 | memory.emplace_back (start, length); |
e6ca34fc PA |
730 | } |
731 | } | |
732 | ||
733 | return memory; | |
734 | } | |
735 | ||
1ee79381 YQ |
736 | enum target_xfer_status |
737 | section_table_read_available_memory (gdb_byte *readbuf, ULONGEST offset, | |
738 | ULONGEST len, ULONGEST *xfered_len) | |
739 | { | |
a79b1bc6 SM |
740 | target_section_table *table = target_get_section_table (&exec_ops); |
741 | std::vector<mem_range> available_memory | |
742 | = section_table_available_memory (offset, len, | |
743 | table->sections, table->sections_end); | |
1ee79381 | 744 | |
a79b1bc6 | 745 | normalize_mem_ranges (&available_memory); |
1ee79381 | 746 | |
a79b1bc6 | 747 | for (const mem_range &r : available_memory) |
1ee79381 | 748 | { |
a79b1bc6 | 749 | if (mem_ranges_overlap (r.start, r.length, offset, len)) |
1ee79381 YQ |
750 | { |
751 | CORE_ADDR end; | |
752 | enum target_xfer_status status; | |
753 | ||
754 | /* Get the intersection window. */ | |
a79b1bc6 | 755 | end = std::min<CORE_ADDR> (offset + len, r.start + r.length); |
1ee79381 YQ |
756 | |
757 | gdb_assert (end - offset <= len); | |
758 | ||
a79b1bc6 | 759 | if (offset >= r.start) |
1ee79381 YQ |
760 | status = exec_read_partial_read_only (readbuf, offset, |
761 | end - offset, | |
762 | xfered_len); | |
763 | else | |
764 | { | |
a79b1bc6 | 765 | *xfered_len = r.start - offset; |
bc113b4e | 766 | status = TARGET_XFER_UNAVAILABLE; |
1ee79381 | 767 | } |
1ee79381 YQ |
768 | return status; |
769 | } | |
770 | } | |
1ee79381 YQ |
771 | |
772 | *xfered_len = len; | |
bc113b4e | 773 | return TARGET_XFER_UNAVAILABLE; |
1ee79381 YQ |
774 | } |
775 | ||
9b409511 | 776 | enum target_xfer_status |
07b82ea5 | 777 | section_table_xfer_memory_partial (gdb_byte *readbuf, const gdb_byte *writebuf, |
b55e14c7 | 778 | ULONGEST offset, ULONGEST len, |
9b409511 | 779 | ULONGEST *xfered_len, |
07b82ea5 PA |
780 | struct target_section *sections, |
781 | struct target_section *sections_end, | |
782 | const char *section_name) | |
c906108c | 783 | { |
020cc13c | 784 | int res; |
0542c86d | 785 | struct target_section *p; |
07b82ea5 PA |
786 | ULONGEST memaddr = offset; |
787 | ULONGEST memend = memaddr + len; | |
c906108c | 788 | |
b55e14c7 | 789 | if (len == 0) |
3e43a32a MS |
790 | internal_error (__FILE__, __LINE__, |
791 | _("failed internal consistency check")); | |
c906108c | 792 | |
348f8c02 | 793 | for (p = sections; p < sections_end; p++) |
c906108c | 794 | { |
2b2848e2 DE |
795 | struct bfd_section *asect = p->the_bfd_section; |
796 | bfd *abfd = asect->owner; | |
797 | ||
798 | if (section_name && strcmp (section_name, asect->name) != 0) | |
0963b4bd | 799 | continue; /* not the section we need. */ |
c906108c | 800 | if (memaddr >= p->addr) |
3db26b01 JB |
801 | { |
802 | if (memend <= p->endaddr) | |
803 | { | |
804 | /* Entire transfer is within this section. */ | |
07b82ea5 | 805 | if (writebuf) |
2b2848e2 | 806 | res = bfd_set_section_contents (abfd, asect, |
07b82ea5 | 807 | writebuf, memaddr - p->addr, |
85302095 AC |
808 | len); |
809 | else | |
2b2848e2 | 810 | res = bfd_get_section_contents (abfd, asect, |
07b82ea5 | 811 | readbuf, memaddr - p->addr, |
85302095 | 812 | len); |
9b409511 YQ |
813 | |
814 | if (res != 0) | |
815 | { | |
816 | *xfered_len = len; | |
817 | return TARGET_XFER_OK; | |
818 | } | |
819 | else | |
820 | return TARGET_XFER_EOF; | |
3db26b01 JB |
821 | } |
822 | else if (memaddr >= p->endaddr) | |
823 | { | |
824 | /* This section ends before the transfer starts. */ | |
825 | continue; | |
826 | } | |
827 | else | |
828 | { | |
829 | /* This section overlaps the transfer. Just do half. */ | |
830 | len = p->endaddr - memaddr; | |
07b82ea5 | 831 | if (writebuf) |
2b2848e2 | 832 | res = bfd_set_section_contents (abfd, asect, |
07b82ea5 | 833 | writebuf, memaddr - p->addr, |
85302095 AC |
834 | len); |
835 | else | |
2b2848e2 | 836 | res = bfd_get_section_contents (abfd, asect, |
07b82ea5 | 837 | readbuf, memaddr - p->addr, |
85302095 | 838 | len); |
9b409511 YQ |
839 | if (res != 0) |
840 | { | |
841 | *xfered_len = len; | |
842 | return TARGET_XFER_OK; | |
843 | } | |
844 | else | |
845 | return TARGET_XFER_EOF; | |
3db26b01 JB |
846 | } |
847 | } | |
c906108c SS |
848 | } |
849 | ||
9b409511 | 850 | return TARGET_XFER_EOF; /* We can't help. */ |
c906108c | 851 | } |
348f8c02 | 852 | |
f6ac5f3d PA |
853 | struct target_section_table * |
854 | exec_target::get_section_table () | |
348f8c02 | 855 | { |
07b82ea5 | 856 | return current_target_sections; |
348f8c02 PA |
857 | } |
858 | ||
f6ac5f3d PA |
859 | enum target_xfer_status |
860 | exec_target::xfer_partial (enum target_object object, | |
861 | const char *annex, gdb_byte *readbuf, | |
862 | const gdb_byte *writebuf, | |
863 | ULONGEST offset, ULONGEST len, ULONGEST *xfered_len) | |
348f8c02 | 864 | { |
f6ac5f3d | 865 | struct target_section_table *table = get_section_table (); |
07b82ea5 PA |
866 | |
867 | if (object == TARGET_OBJECT_MEMORY) | |
868 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 869 | offset, len, xfered_len, |
07b82ea5 PA |
870 | table->sections, |
871 | table->sections_end, | |
872 | NULL); | |
873 | else | |
2ed4b548 | 874 | return TARGET_XFER_E_IO; |
348f8c02 | 875 | } |
c906108c | 876 | \f |
c5aa993b | 877 | |
c906108c | 878 | void |
07b82ea5 | 879 | print_section_info (struct target_section_table *t, bfd *abfd) |
c906108c | 880 | { |
5af949e3 | 881 | struct gdbarch *gdbarch = gdbarch_from_bfd (abfd); |
0542c86d | 882 | struct target_section *p; |
17a912b6 | 883 | /* FIXME: 16 is not wide enough when gdbarch_addr_bit > 64. */ |
5af949e3 | 884 | int wid = gdbarch_addr_bit (gdbarch) <= 32 ? 8 : 16; |
c906108c | 885 | |
c5aa993b | 886 | printf_filtered ("\t`%s', ", bfd_get_filename (abfd)); |
c906108c | 887 | wrap_here (" "); |
a3f17187 | 888 | printf_filtered (_("file type %s.\n"), bfd_get_target (abfd)); |
c906108c | 889 | if (abfd == exec_bfd) |
51bee8e9 | 890 | { |
3e43a32a MS |
891 | /* gcc-3.4 does not like the initialization in |
892 | <p == t->sections_end>. */ | |
d904de5b | 893 | bfd_vma displacement = 0; |
2f1bdd26 | 894 | bfd_vma entry_point; |
51bee8e9 JK |
895 | |
896 | for (p = t->sections; p < t->sections_end; p++) | |
897 | { | |
2b2848e2 DE |
898 | struct bfd_section *psect = p->the_bfd_section; |
899 | bfd *pbfd = psect->owner; | |
51bee8e9 | 900 | |
2b2848e2 | 901 | if ((bfd_get_section_flags (pbfd, psect) & (SEC_ALLOC | SEC_LOAD)) |
51bee8e9 JK |
902 | != (SEC_ALLOC | SEC_LOAD)) |
903 | continue; | |
904 | ||
2b2848e2 DE |
905 | if (bfd_get_section_vma (pbfd, psect) <= abfd->start_address |
906 | && abfd->start_address < (bfd_get_section_vma (pbfd, psect) | |
907 | + bfd_get_section_size (psect))) | |
51bee8e9 | 908 | { |
2b2848e2 | 909 | displacement = p->addr - bfd_get_section_vma (pbfd, psect); |
51bee8e9 JK |
910 | break; |
911 | } | |
912 | } | |
913 | if (p == t->sections_end) | |
b37520b6 | 914 | warning (_("Cannot find section for the entry point of %s."), |
d904de5b | 915 | bfd_get_filename (abfd)); |
51bee8e9 | 916 | |
2f1bdd26 MGD |
917 | entry_point = gdbarch_addr_bits_remove (gdbarch, |
918 | bfd_get_start_address (abfd) | |
919 | + displacement); | |
51bee8e9 | 920 | printf_filtered (_("\tEntry point: %s\n"), |
2f1bdd26 | 921 | paddress (gdbarch, entry_point)); |
51bee8e9 | 922 | } |
07b82ea5 | 923 | for (p = t->sections; p < t->sections_end; p++) |
c906108c | 924 | { |
2b2848e2 DE |
925 | struct bfd_section *psect = p->the_bfd_section; |
926 | bfd *pbfd = psect->owner; | |
927 | ||
bb599908 PH |
928 | printf_filtered ("\t%s", hex_string_custom (p->addr, wid)); |
929 | printf_filtered (" - %s", hex_string_custom (p->endaddr, wid)); | |
bcf16802 KB |
930 | |
931 | /* FIXME: A format of "08l" is not wide enough for file offsets | |
932 | larger than 4GB. OTOH, making it "016l" isn't desirable either | |
933 | since most output will then be much wider than necessary. It | |
934 | may make sense to test the size of the file and choose the | |
935 | format string accordingly. */ | |
a3f17187 | 936 | /* FIXME: i18n: Need to rewrite this sentence. */ |
c906108c SS |
937 | if (info_verbose) |
938 | printf_filtered (" @ %s", | |
2b2848e2 DE |
939 | hex_string_custom (psect->filepos, 8)); |
940 | printf_filtered (" is %s", bfd_section_name (pbfd, psect)); | |
941 | if (pbfd != abfd) | |
942 | printf_filtered (" in %s", bfd_get_filename (pbfd)); | |
c906108c SS |
943 | printf_filtered ("\n"); |
944 | } | |
945 | } | |
946 | ||
f6ac5f3d PA |
947 | void |
948 | exec_target::files_info () | |
c906108c | 949 | { |
57008375 JK |
950 | if (exec_bfd) |
951 | print_section_info (current_target_sections, exec_bfd); | |
952 | else | |
953 | puts_filtered (_("\t<no file loaded>\n")); | |
c906108c SS |
954 | } |
955 | ||
956 | static void | |
0b39b52e | 957 | set_section_command (const char *args, int from_tty) |
c906108c | 958 | { |
0542c86d | 959 | struct target_section *p; |
0b39b52e | 960 | const char *secname; |
c906108c SS |
961 | unsigned seclen; |
962 | unsigned long secaddr; | |
963 | char secprint[100]; | |
964 | long offset; | |
07b82ea5 | 965 | struct target_section_table *table; |
c906108c SS |
966 | |
967 | if (args == 0) | |
8a3fe4f8 | 968 | error (_("Must specify section name and its virtual address")); |
c906108c | 969 | |
0963b4bd | 970 | /* Parse out section name. */ |
c5aa993b | 971 | for (secname = args; !isspace (*args); args++); |
c906108c SS |
972 | seclen = args - secname; |
973 | ||
0963b4bd | 974 | /* Parse out new virtual address. */ |
c906108c SS |
975 | secaddr = parse_and_eval_address (args); |
976 | ||
07b82ea5 PA |
977 | table = current_target_sections; |
978 | for (p = table->sections; p < table->sections_end; p++) | |
c5aa993b | 979 | { |
57008375 | 980 | if (!strncmp (secname, bfd_section_name (p->bfd, |
3e43a32a | 981 | p->the_bfd_section), seclen) |
57008375 | 982 | && bfd_section_name (p->bfd, p->the_bfd_section)[seclen] == '\0') |
c5aa993b JM |
983 | { |
984 | offset = secaddr - p->addr; | |
985 | p->addr += offset; | |
986 | p->endaddr += offset; | |
987 | if (from_tty) | |
f6ac5f3d | 988 | exec_ops.files_info (); |
c5aa993b JM |
989 | return; |
990 | } | |
c906108c | 991 | } |
c906108c SS |
992 | if (seclen >= sizeof (secprint)) |
993 | seclen = sizeof (secprint) - 1; | |
994 | strncpy (secprint, secname, seclen); | |
995 | secprint[seclen] = '\0'; | |
8a3fe4f8 | 996 | error (_("Section %s not found"), secprint); |
c906108c SS |
997 | } |
998 | ||
30510692 DJ |
999 | /* If we can find a section in FILENAME with BFD index INDEX, adjust |
1000 | it to ADDRESS. */ | |
c1bd25fd DJ |
1001 | |
1002 | void | |
1003 | exec_set_section_address (const char *filename, int index, CORE_ADDR address) | |
1004 | { | |
0542c86d | 1005 | struct target_section *p; |
07b82ea5 | 1006 | struct target_section_table *table; |
c1bd25fd | 1007 | |
07b82ea5 PA |
1008 | table = current_target_sections; |
1009 | for (p = table->sections; p < table->sections_end; p++) | |
c1bd25fd | 1010 | { |
2b2848e2 | 1011 | if (filename_cmp (filename, p->the_bfd_section->owner->filename) == 0 |
30510692 | 1012 | && index == p->the_bfd_section->index) |
c1bd25fd | 1013 | { |
30510692 | 1014 | p->endaddr += address - p->addr; |
c1bd25fd | 1015 | p->addr = address; |
c1bd25fd DJ |
1016 | } |
1017 | } | |
1018 | } | |
1019 | ||
57810aa7 | 1020 | bool |
f6ac5f3d | 1021 | exec_target::has_memory () |
c35b1492 PA |
1022 | { |
1023 | /* We can provide memory if we have any file/target sections to read | |
1024 | from. */ | |
1025 | return (current_target_sections->sections | |
1026 | != current_target_sections->sections_end); | |
1027 | } | |
1028 | ||
f6ac5f3d PA |
1029 | char * |
1030 | exec_target::make_corefile_notes (bfd *obfd, int *note_size) | |
83814951 TT |
1031 | { |
1032 | error (_("Can't create a corefile")); | |
1033 | } | |
be4d1333 | 1034 | |
f6ac5f3d PA |
1035 | int |
1036 | exec_target::find_memory_regions (find_memory_region_ftype func, void *data) | |
c906108c | 1037 | { |
f6ac5f3d | 1038 | return objfile_find_memory_regions (this, func, data); |
c906108c SS |
1039 | } |
1040 | ||
1041 | void | |
fba45db2 | 1042 | _initialize_exec (void) |
c906108c SS |
1043 | { |
1044 | struct cmd_list_element *c; | |
1045 | ||
c906108c SS |
1046 | if (!dbx_commands) |
1047 | { | |
1a966eab AC |
1048 | c = add_cmd ("file", class_files, file_command, _("\ |
1049 | Use FILE as program to be debugged.\n\ | |
c906108c SS |
1050 | It is read for its symbols, for getting the contents of pure memory,\n\ |
1051 | and it is the program executed when you use the `run' command.\n\ | |
1052 | If FILE cannot be found as specified, your execution directory path\n\ | |
1053 | ($PATH) is searched for a command of that name.\n\ | |
1a966eab | 1054 | No arg means to have no executable file and no symbols."), &cmdlist); |
5ba2abeb | 1055 | set_cmd_completer (c, filename_completer); |
c906108c SS |
1056 | } |
1057 | ||
1a966eab AC |
1058 | c = add_cmd ("exec-file", class_files, exec_file_command, _("\ |
1059 | Use FILE as program for getting contents of pure memory.\n\ | |
c906108c SS |
1060 | If FILE cannot be found as specified, your execution directory path\n\ |
1061 | is searched for a command of that name.\n\ | |
1a966eab | 1062 | No arg means have no executable file."), &cmdlist); |
5ba2abeb | 1063 | set_cmd_completer (c, filename_completer); |
c906108c | 1064 | |
1bedd215 AC |
1065 | add_com ("section", class_files, set_section_command, _("\ |
1066 | Change the base address of section SECTION of the exec file to ADDR.\n\ | |
c906108c SS |
1067 | This can be used if the exec file does not contain section addresses,\n\ |
1068 | (such as in the a.out format), or when the addresses specified in the\n\ | |
1069 | file itself are wrong. Each section must be changed separately. The\n\ | |
1bedd215 | 1070 | ``info files'' command lists all the sections and their addresses.")); |
c906108c | 1071 | |
5bf193a2 AC |
1072 | add_setshow_boolean_cmd ("write", class_support, &write_files, _("\ |
1073 | Set writing into executable and core files."), _("\ | |
1074 | Show writing into executable and core files."), NULL, | |
1075 | NULL, | |
920d2a44 | 1076 | show_write_files, |
5bf193a2 | 1077 | &setlist, &showlist); |
c5aa993b | 1078 | |
d9f719f1 | 1079 | add_target (exec_target_info, exec_target_open, filename_completer); |
c906108c | 1080 | } |