Commit | Line | Data |
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c906108c | 1 | /* Work with executable files, for GDB. |
4646aa9d | 2 | |
61baf725 | 3 | Copyright (C) 1988-2017 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" |
325fac50 | 46 | #include <algorithm> |
c906108c | 47 | |
1d8b34a7 | 48 | void (*deprecated_file_changed_hook) (const char *); |
c906108c SS |
49 | |
50 | /* Prototypes for local functions */ | |
51 | ||
a14ed312 | 52 | static void set_section_command (char *, int); |
c906108c | 53 | |
a14ed312 | 54 | static void exec_files_info (struct target_ops *); |
c906108c | 55 | |
a14ed312 | 56 | static void init_exec_ops (void); |
c906108c | 57 | |
c906108c SS |
58 | /* The target vector for executable files. */ |
59 | ||
e8b2341c | 60 | static struct target_ops exec_ops; |
c906108c | 61 | |
c906108c SS |
62 | /* Whether to open exec and core files read-only or read-write. */ |
63 | ||
64 | int write_files = 0; | |
920d2a44 AC |
65 | static void |
66 | show_write_files (struct ui_file *file, int from_tty, | |
67 | struct cmd_list_element *c, const char *value) | |
68 | { | |
69 | fprintf_filtered (file, _("Writing into executable and core files is %s.\n"), | |
70 | value); | |
71 | } | |
72 | ||
c906108c | 73 | |
4c42eaff | 74 | static void |
014f9477 | 75 | exec_open (const char *args, int from_tty) |
1adeb98a FN |
76 | { |
77 | target_preopen (from_tty); | |
78 | exec_file_attach (args, from_tty); | |
79 | } | |
80 | ||
07b82ea5 PA |
81 | /* Close and clear exec_bfd. If we end up with no target sections to |
82 | read memory from, this unpushes the exec_ops target. */ | |
83 | ||
6c95b8df PA |
84 | void |
85 | exec_close (void) | |
07b82ea5 PA |
86 | { |
87 | if (exec_bfd) | |
88 | { | |
89 | bfd *abfd = exec_bfd; | |
07b82ea5 | 90 | |
cbb099e8 | 91 | gdb_bfd_unref (abfd); |
07b82ea5 PA |
92 | |
93 | /* Removing target sections may close the exec_ops target. | |
94 | Clear exec_bfd before doing so to prevent recursion. */ | |
95 | exec_bfd = NULL; | |
96 | exec_bfd_mtime = 0; | |
97 | ||
046ac79f | 98 | remove_target_sections (&exec_bfd); |
1f0c4988 JK |
99 | |
100 | xfree (exec_filename); | |
101 | exec_filename = NULL; | |
07b82ea5 PA |
102 | } |
103 | } | |
104 | ||
6c95b8df PA |
105 | /* This is the target_close implementation. Clears all target |
106 | sections and closes all executable bfds from all program spaces. */ | |
107 | ||
c906108c | 108 | static void |
de90e03d | 109 | exec_close_1 (struct target_ops *self) |
c906108c | 110 | { |
ab16fce8 | 111 | struct program_space *ss; |
5ed8105e | 112 | scoped_restore_current_program_space restore_pspace; |
6c95b8df | 113 | |
ab16fce8 | 114 | ALL_PSPACES (ss) |
5ed8105e PA |
115 | { |
116 | set_current_program_space (ss); | |
117 | clear_section_table (current_target_sections); | |
118 | exec_close (); | |
119 | } | |
c906108c SS |
120 | } |
121 | ||
1adeb98a FN |
122 | void |
123 | exec_file_clear (int from_tty) | |
124 | { | |
125 | /* Remove exec file. */ | |
6c95b8df | 126 | exec_close (); |
1adeb98a FN |
127 | |
128 | if (from_tty) | |
a3f17187 | 129 | printf_unfiltered (_("No executable file now.\n")); |
1adeb98a FN |
130 | } |
131 | ||
ecf45d2c | 132 | /* See exec.h. */ |
a10de604 GB |
133 | |
134 | void | |
ecf45d2c SL |
135 | try_open_exec_file (const char *exec_file_host, struct inferior *inf, |
136 | symfile_add_flags add_flags) | |
a10de604 | 137 | { |
88178e82 | 138 | struct cleanup *old_chain; |
57d1de9c | 139 | struct gdb_exception prev_err = exception_none; |
a10de604 | 140 | |
ecf45d2c | 141 | old_chain = make_cleanup (free_current_contents, &prev_err.message); |
57d1de9c LM |
142 | |
143 | /* exec_file_attach and symbol_file_add_main may throw an error if the file | |
144 | cannot be opened either locally or remotely. | |
145 | ||
146 | This happens for example, when the file is first found in the local | |
147 | sysroot (above), and then disappears (a TOCTOU race), or when it doesn't | |
148 | exist in the target filesystem, or when the file does exist, but | |
149 | is not readable. | |
88178e82 | 150 | |
57d1de9c LM |
151 | Even without a symbol file, the remote-based debugging session should |
152 | continue normally instead of ending abruptly. Hence we catch thrown | |
153 | errors/exceptions in the following code. */ | |
154 | TRY | |
155 | { | |
ecf45d2c SL |
156 | /* We must do this step even if exec_file_host is NULL, so that |
157 | exec_file_attach will clear state. */ | |
158 | exec_file_attach (exec_file_host, add_flags & SYMFILE_VERBOSE); | |
57d1de9c LM |
159 | } |
160 | CATCH (err, RETURN_MASK_ERROR) | |
161 | { | |
162 | if (err.message != NULL) | |
163 | warning ("%s", err.message); | |
164 | ||
165 | prev_err = err; | |
166 | ||
167 | /* Save message so it doesn't get trashed by the catch below. */ | |
b5e1db87 LM |
168 | if (err.message != NULL) |
169 | prev_err.message = xstrdup (err.message); | |
57d1de9c LM |
170 | } |
171 | END_CATCH | |
172 | ||
ecf45d2c | 173 | if (exec_file_host != NULL) |
57d1de9c | 174 | { |
ecf45d2c SL |
175 | TRY |
176 | { | |
177 | symbol_file_add_main (exec_file_host, add_flags); | |
178 | } | |
179 | CATCH (err, RETURN_MASK_ERROR) | |
180 | { | |
181 | if (!exception_print_same (prev_err, err)) | |
182 | warning ("%s", err.message); | |
183 | } | |
184 | END_CATCH | |
57d1de9c | 185 | } |
ecf45d2c SL |
186 | |
187 | do_cleanups (old_chain); | |
188 | } | |
189 | ||
190 | /* See gdbcore.h. */ | |
191 | ||
192 | void | |
193 | exec_file_locate_attach (int pid, int defer_bp_reset, int from_tty) | |
194 | { | |
195 | char *exec_file_target, *exec_file_host; | |
196 | struct cleanup *old_chain; | |
197 | symfile_add_flags add_flags = 0; | |
198 | ||
199 | /* Do nothing if we already have an executable filename. */ | |
200 | if (get_exec_file (0) != NULL) | |
201 | return; | |
202 | ||
203 | /* Try to determine a filename from the process itself. */ | |
204 | exec_file_target = target_pid_to_exec_file (pid); | |
205 | if (exec_file_target == NULL) | |
57d1de9c | 206 | { |
ecf45d2c SL |
207 | warning (_("No executable has been specified and target does not " |
208 | "support\n" | |
209 | "determining executable automatically. " | |
210 | "Try using the \"file\" command.")); | |
211 | return; | |
57d1de9c | 212 | } |
88178e82 | 213 | |
ecf45d2c SL |
214 | exec_file_host = exec_file_find (exec_file_target, NULL); |
215 | old_chain = make_cleanup (xfree, exec_file_host); | |
216 | ||
217 | if (defer_bp_reset) | |
218 | add_flags |= SYMFILE_DEFER_BP_RESET; | |
219 | ||
220 | if (from_tty) | |
221 | add_flags |= SYMFILE_VERBOSE; | |
222 | ||
223 | /* Attempt to open the exec file. */ | |
224 | try_open_exec_file (exec_file_host, current_inferior (), add_flags); | |
88178e82 | 225 | do_cleanups (old_chain); |
a10de604 GB |
226 | } |
227 | ||
907083d1 | 228 | /* Set FILENAME as the new exec file. |
c906108c | 229 | |
c5aa993b JM |
230 | This function is intended to be behave essentially the same |
231 | as exec_file_command, except that the latter will detect when | |
232 | a target is being debugged, and will ask the user whether it | |
233 | should be shut down first. (If the answer is "no", then the | |
234 | new file is ignored.) | |
c906108c | 235 | |
c5aa993b JM |
236 | This file is used by exec_file_command, to do the work of opening |
237 | and processing the exec file after any prompting has happened. | |
c906108c | 238 | |
c5aa993b JM |
239 | And, it is used by child_attach, when the attach command was |
240 | given a pid but not a exec pathname, and the attach command could | |
241 | figure out the pathname from the pid. (In this case, we shouldn't | |
242 | ask the user whether the current target should be shut down -- | |
907083d1 | 243 | we're supplying the exec pathname late for good reason.) */ |
c906108c SS |
244 | |
245 | void | |
5f08566b | 246 | exec_file_attach (const char *filename, int from_tty) |
c906108c | 247 | { |
9b333ba3 TT |
248 | /* First, acquire a reference to the current exec_bfd. We release |
249 | this at the end of the function; but acquiring it now lets the | |
250 | BFD cache return it if this call refers to the same file. */ | |
2712ce2e | 251 | gdb_bfd_ref_ptr exec_bfd_holder = new_bfd_ref (exec_bfd); |
192b62ce | 252 | |
c906108c | 253 | /* Remove any previous exec file. */ |
6c95b8df | 254 | exec_close (); |
c906108c SS |
255 | |
256 | /* Now open and digest the file the user requested, if any. */ | |
257 | ||
1adeb98a FN |
258 | if (!filename) |
259 | { | |
260 | if (from_tty) | |
a3f17187 | 261 | printf_unfiltered (_("No executable file now.\n")); |
7a107747 DJ |
262 | |
263 | set_gdbarch_from_file (NULL); | |
1adeb98a FN |
264 | } |
265 | else | |
c906108c | 266 | { |
64c0b5de | 267 | int load_via_target = 0; |
14278e1f | 268 | const char *scratch_pathname, *canonical_pathname; |
c906108c | 269 | int scratch_chan; |
07b82ea5 | 270 | struct target_section *sections = NULL, *sections_end = NULL; |
d18b8b7a | 271 | char **matching; |
c5aa993b | 272 | |
64c0b5de GB |
273 | if (is_target_filename (filename)) |
274 | { | |
275 | if (target_filesystem_is_local ()) | |
276 | filename += strlen (TARGET_SYSROOT_PREFIX); | |
277 | else | |
278 | load_via_target = 1; | |
279 | } | |
280 | ||
14278e1f | 281 | gdb::unique_xmalloc_ptr<char> canonical_storage, scratch_storage; |
64c0b5de | 282 | if (load_via_target) |
c5aa993b | 283 | { |
64c0b5de GB |
284 | /* gdb_bfd_fopen does not support "target:" filenames. */ |
285 | if (write_files) | |
286 | warning (_("writing into executable files is " | |
287 | "not supported for %s sysroots"), | |
288 | TARGET_SYSROOT_PREFIX); | |
289 | ||
14278e1f | 290 | scratch_pathname = filename; |
64c0b5de | 291 | scratch_chan = -1; |
64c0b5de | 292 | canonical_pathname = scratch_pathname; |
c5aa993b | 293 | } |
64c0b5de GB |
294 | else |
295 | { | |
14278e1f TT |
296 | char *temp_pathname; |
297 | ||
64c0b5de GB |
298 | scratch_chan = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, |
299 | filename, write_files ? | |
300 | O_RDWR | O_BINARY : O_RDONLY | O_BINARY, | |
14278e1f | 301 | &temp_pathname); |
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, | |
14278e1f | 312 | &temp_pathname); |
64c0b5de | 313 | } |
c906108c | 314 | #endif |
64c0b5de GB |
315 | if (scratch_chan < 0) |
316 | perror_with_name (filename); | |
a4453b7e | 317 | |
14278e1f TT |
318 | scratch_storage.reset (temp_pathname); |
319 | scratch_pathname = temp_pathname; | |
a4453b7e | 320 | |
64c0b5de GB |
321 | /* gdb_bfd_open (and its variants) prefers canonicalized |
322 | pathname for better BFD caching. */ | |
14278e1f TT |
323 | canonical_storage = gdb_realpath (scratch_pathname); |
324 | canonical_pathname = canonical_storage.get (); | |
64c0b5de | 325 | } |
1f0c4988 | 326 | |
192b62ce | 327 | gdb_bfd_ref_ptr temp; |
64c0b5de | 328 | if (write_files && !load_via_target) |
192b62ce TT |
329 | temp = gdb_bfd_fopen (canonical_pathname, gnutarget, |
330 | FOPEN_RUB, scratch_chan); | |
1c00ec6b | 331 | else |
192b62ce TT |
332 | temp = gdb_bfd_open (canonical_pathname, gnutarget, scratch_chan); |
333 | exec_bfd = temp.release (); | |
c906108c SS |
334 | |
335 | if (!exec_bfd) | |
9fe4a216 | 336 | { |
d5131498 | 337 | error (_("\"%s\": could not open as an executable file: %s."), |
9fe4a216 TT |
338 | scratch_pathname, bfd_errmsg (bfd_get_error ())); |
339 | } | |
c906108c | 340 | |
64c0b5de GB |
341 | /* gdb_realpath_keepfile resolves symlinks on the local |
342 | filesystem and so cannot be used for "target:" files. */ | |
1f0c4988 | 343 | gdb_assert (exec_filename == NULL); |
64c0b5de GB |
344 | if (load_via_target) |
345 | exec_filename = xstrdup (bfd_get_filename (exec_bfd)); | |
346 | else | |
4971c9a7 | 347 | exec_filename = gdb_realpath_keepfile (scratch_pathname).release (); |
1f0c4988 | 348 | |
d18b8b7a | 349 | if (!bfd_check_format_matches (exec_bfd, bfd_object, &matching)) |
c906108c SS |
350 | { |
351 | /* Make sure to close exec_bfd, or else "run" might try to use | |
352 | it. */ | |
6c95b8df | 353 | exec_close (); |
8a3fe4f8 | 354 | error (_("\"%s\": not in executable format: %s"), |
d18b8b7a HZ |
355 | scratch_pathname, |
356 | gdb_bfd_errmsg (bfd_get_error (), matching)); | |
c906108c SS |
357 | } |
358 | ||
07b82ea5 | 359 | if (build_section_table (exec_bfd, §ions, §ions_end)) |
c906108c SS |
360 | { |
361 | /* Make sure to close exec_bfd, or else "run" might try to use | |
362 | it. */ | |
6c95b8df | 363 | exec_close (); |
8a3fe4f8 | 364 | error (_("\"%s\": can't find the file sections: %s"), |
c906108c SS |
365 | scratch_pathname, bfd_errmsg (bfd_get_error ())); |
366 | } | |
367 | ||
c04ea773 DJ |
368 | exec_bfd_mtime = bfd_get_mtime (exec_bfd); |
369 | ||
c906108c SS |
370 | validate_files (); |
371 | ||
372 | set_gdbarch_from_file (exec_bfd); | |
373 | ||
07b82ea5 | 374 | /* Add the executable's sections to the current address spaces' |
6c95b8df PA |
375 | list of sections. This possibly pushes the exec_ops |
376 | target. */ | |
ed9eebaf | 377 | add_target_sections (&exec_bfd, sections, sections_end); |
07b82ea5 | 378 | xfree (sections); |
c906108c SS |
379 | |
380 | /* Tell display code (if any) about the changed file name. */ | |
9a4105ab AC |
381 | if (deprecated_exec_file_display_hook) |
382 | (*deprecated_exec_file_display_hook) (filename); | |
c906108c | 383 | } |
9b333ba3 | 384 | |
ce7d4522 | 385 | bfd_cache_close_all (); |
781b42b0 | 386 | observer_notify_executable_changed (); |
c906108c SS |
387 | } |
388 | ||
389 | /* Process the first arg in ARGS as the new exec file. | |
390 | ||
c5aa993b JM |
391 | Note that we have to explicitly ignore additional args, since we can |
392 | be called from file_command(), which also calls symbol_file_command() | |
1adeb98a FN |
393 | which can take multiple args. |
394 | ||
0963b4bd | 395 | If ARGS is NULL, we just want to close the exec file. */ |
c906108c | 396 | |
1adeb98a | 397 | static void |
1d8b34a7 | 398 | exec_file_command (const char *args, int from_tty) |
c906108c | 399 | { |
1adeb98a | 400 | char *filename; |
4c42eaff DJ |
401 | |
402 | if (from_tty && target_has_execution | |
403 | && !query (_("A program is being debugged already.\n" | |
404 | "Are you sure you want to change the file? "))) | |
405 | error (_("File not changed.")); | |
1adeb98a FN |
406 | |
407 | if (args) | |
408 | { | |
409 | /* Scan through the args and pick up the first non option arg | |
410 | as the filename. */ | |
411 | ||
773a1edc TT |
412 | gdb_argv built_argv (args); |
413 | char **argv = built_argv.get (); | |
1adeb98a FN |
414 | |
415 | for (; (*argv != NULL) && (**argv == '-'); argv++) | |
416 | {; | |
417 | } | |
418 | if (*argv == NULL) | |
8a3fe4f8 | 419 | error (_("No executable file name was specified")); |
1adeb98a | 420 | |
773a1edc TT |
421 | gdb::unique_xmalloc_ptr<char> filename (tilde_expand (*argv)); |
422 | exec_file_attach (filename.get (), from_tty); | |
1adeb98a FN |
423 | } |
424 | else | |
425 | exec_file_attach (NULL, from_tty); | |
c906108c SS |
426 | } |
427 | ||
0963b4bd | 428 | /* Set both the exec file and the symbol file, in one command. |
c906108c SS |
429 | What a novelty. Why did GDB go through four major releases before this |
430 | command was added? */ | |
431 | ||
432 | static void | |
1d8b34a7 | 433 | file_command (const char *arg, int from_tty) |
c906108c SS |
434 | { |
435 | /* FIXME, if we lose on reading the symbol file, we should revert | |
436 | the exec file, but that's rough. */ | |
437 | exec_file_command (arg, from_tty); | |
438 | symbol_file_command (arg, from_tty); | |
9a4105ab AC |
439 | if (deprecated_file_changed_hook) |
440 | deprecated_file_changed_hook (arg); | |
c906108c | 441 | } |
c906108c | 442 | \f |
c5aa993b | 443 | |
0963b4bd | 444 | /* Locate all mappable sections of a BFD file. |
c906108c SS |
445 | table_pp_char is a char * to get it through bfd_map_over_sections; |
446 | we cast it back to its proper type. */ | |
447 | ||
448 | static void | |
7be0c536 AC |
449 | add_to_section_table (bfd *abfd, struct bfd_section *asect, |
450 | void *table_pp_char) | |
c906108c | 451 | { |
0542c86d | 452 | struct target_section **table_pp = (struct target_section **) table_pp_char; |
c906108c SS |
453 | flagword aflag; |
454 | ||
2b2848e2 DE |
455 | gdb_assert (abfd == asect->owner); |
456 | ||
0f5d55d8 JB |
457 | /* Check the section flags, but do not discard zero-length sections, since |
458 | some symbols may still be attached to this section. For instance, we | |
459 | encountered on sparc-solaris 2.10 a shared library with an empty .bss | |
460 | section to which a symbol named "_end" was attached. The address | |
461 | of this symbol still needs to be relocated. */ | |
c906108c SS |
462 | aflag = bfd_get_section_flags (abfd, asect); |
463 | if (!(aflag & SEC_ALLOC)) | |
464 | return; | |
0f5d55d8 | 465 | |
046ac79f | 466 | (*table_pp)->owner = NULL; |
c906108c SS |
467 | (*table_pp)->the_bfd_section = asect; |
468 | (*table_pp)->addr = bfd_section_vma (abfd, asect); | |
469 | (*table_pp)->endaddr = (*table_pp)->addr + bfd_section_size (abfd, asect); | |
470 | (*table_pp)++; | |
471 | } | |
472 | ||
a5b1fd27 DE |
473 | /* See exec.h. */ |
474 | ||
475 | void | |
476 | clear_section_table (struct target_section_table *table) | |
477 | { | |
478 | xfree (table->sections); | |
479 | table->sections = table->sections_end = NULL; | |
480 | } | |
481 | ||
482 | /* Resize section table TABLE by ADJUSTMENT. | |
483 | ADJUSTMENT may be negative, in which case the caller must have already | |
484 | removed the sections being deleted. | |
485 | Returns the old size. */ | |
486 | ||
487 | static int | |
488 | resize_section_table (struct target_section_table *table, int adjustment) | |
07b82ea5 | 489 | { |
07b82ea5 PA |
490 | int old_count; |
491 | int new_count; | |
492 | ||
07b82ea5 PA |
493 | old_count = table->sections_end - table->sections; |
494 | ||
a5b1fd27 | 495 | new_count = adjustment + old_count; |
07b82ea5 PA |
496 | |
497 | if (new_count) | |
498 | { | |
224c3ddb SM |
499 | table->sections = XRESIZEVEC (struct target_section, table->sections, |
500 | new_count); | |
07b82ea5 PA |
501 | table->sections_end = table->sections + new_count; |
502 | } | |
503 | else | |
a5b1fd27 | 504 | clear_section_table (table); |
07b82ea5 PA |
505 | |
506 | return old_count; | |
507 | } | |
508 | ||
c906108c SS |
509 | /* Builds a section table, given args BFD, SECTABLE_PTR, SECEND_PTR. |
510 | Returns 0 if OK, 1 on error. */ | |
511 | ||
512 | int | |
0542c86d PA |
513 | build_section_table (struct bfd *some_bfd, struct target_section **start, |
514 | struct target_section **end) | |
c906108c SS |
515 | { |
516 | unsigned count; | |
517 | ||
518 | count = bfd_count_sections (some_bfd); | |
519 | if (*start) | |
b8c9b27d | 520 | xfree (* start); |
8d749320 | 521 | *start = XNEWVEC (struct target_section, count); |
c906108c | 522 | *end = *start; |
c5aa993b | 523 | bfd_map_over_sections (some_bfd, add_to_section_table, (char *) end); |
c906108c | 524 | if (*end > *start + count) |
3e43a32a MS |
525 | internal_error (__FILE__, __LINE__, |
526 | _("failed internal consistency check")); | |
c906108c SS |
527 | /* We could realloc the table, but it probably loses for most files. */ |
528 | return 0; | |
529 | } | |
07b82ea5 PA |
530 | |
531 | /* Add the sections array defined by [SECTIONS..SECTIONS_END[ to the | |
532 | current set of target sections. */ | |
533 | ||
534 | void | |
046ac79f | 535 | add_target_sections (void *owner, |
ed9eebaf | 536 | struct target_section *sections, |
07b82ea5 PA |
537 | struct target_section *sections_end) |
538 | { | |
539 | int count; | |
540 | struct target_section_table *table = current_target_sections; | |
541 | ||
542 | count = sections_end - sections; | |
543 | ||
544 | if (count > 0) | |
545 | { | |
546 | int space = resize_section_table (table, count); | |
ed9eebaf | 547 | int i; |
d7f9d729 | 548 | |
ed9eebaf TT |
549 | for (i = 0; i < count; ++i) |
550 | { | |
551 | table->sections[space + i] = sections[i]; | |
046ac79f | 552 | table->sections[space + i].owner = owner; |
ed9eebaf | 553 | } |
07b82ea5 PA |
554 | |
555 | /* If these are the first file sections we can provide memory | |
556 | from, push the file_stratum target. */ | |
ab16fce8 TT |
557 | if (!target_is_pushed (&exec_ops)) |
558 | push_target (&exec_ops); | |
07b82ea5 PA |
559 | } |
560 | } | |
561 | ||
76ad5e1e NB |
562 | /* Add the sections of OBJFILE to the current set of target sections. */ |
563 | ||
564 | void | |
565 | add_target_sections_of_objfile (struct objfile *objfile) | |
566 | { | |
567 | struct target_section_table *table = current_target_sections; | |
568 | struct obj_section *osect; | |
569 | int space; | |
570 | unsigned count = 0; | |
571 | struct target_section *ts; | |
572 | ||
573 | if (objfile == NULL) | |
574 | return; | |
575 | ||
576 | /* Compute the number of sections to add. */ | |
577 | ALL_OBJFILE_OSECTIONS (objfile, osect) | |
578 | { | |
579 | if (bfd_get_section_size (osect->the_bfd_section) == 0) | |
580 | continue; | |
581 | count++; | |
582 | } | |
583 | ||
584 | if (count == 0) | |
585 | return; | |
586 | ||
587 | space = resize_section_table (table, count); | |
588 | ||
589 | ts = table->sections + space; | |
590 | ||
591 | ALL_OBJFILE_OSECTIONS (objfile, osect) | |
592 | { | |
593 | if (bfd_get_section_size (osect->the_bfd_section) == 0) | |
594 | continue; | |
595 | ||
596 | gdb_assert (ts < table->sections + space + count); | |
597 | ||
598 | ts->addr = obj_section_addr (osect); | |
599 | ts->endaddr = obj_section_endaddr (osect); | |
600 | ts->the_bfd_section = osect->the_bfd_section; | |
601 | ts->owner = (void *) objfile; | |
602 | ||
603 | ts++; | |
604 | } | |
605 | } | |
606 | ||
046ac79f JK |
607 | /* Remove all target sections owned by OWNER. |
608 | OWNER must be the same value passed to add_target_sections. */ | |
07b82ea5 PA |
609 | |
610 | void | |
046ac79f | 611 | remove_target_sections (void *owner) |
07b82ea5 PA |
612 | { |
613 | struct target_section *src, *dest; | |
07b82ea5 PA |
614 | struct target_section_table *table = current_target_sections; |
615 | ||
046ac79f JK |
616 | gdb_assert (owner != NULL); |
617 | ||
07b82ea5 PA |
618 | dest = table->sections; |
619 | for (src = table->sections; src < table->sections_end; src++) | |
046ac79f | 620 | if (src->owner != owner) |
07b82ea5 PA |
621 | { |
622 | /* Keep this section. */ | |
623 | if (dest < src) | |
624 | *dest = *src; | |
625 | dest++; | |
626 | } | |
627 | ||
628 | /* If we've dropped any sections, resize the section table. */ | |
629 | if (dest < src) | |
630 | { | |
631 | int old_count; | |
632 | ||
633 | old_count = resize_section_table (table, dest - src); | |
634 | ||
635 | /* If we don't have any more sections to read memory from, | |
636 | remove the file_stratum target from the stack. */ | |
637 | if (old_count + (dest - src) == 0) | |
6c95b8df PA |
638 | { |
639 | struct program_space *pspace; | |
640 | ||
641 | ALL_PSPACES (pspace) | |
642 | if (pspace->target_sections.sections | |
643 | != pspace->target_sections.sections_end) | |
644 | return; | |
645 | ||
646 | unpush_target (&exec_ops); | |
647 | } | |
07b82ea5 PA |
648 | } |
649 | } | |
650 | ||
c906108c | 651 | \f |
348f8c02 | 652 | |
1ca49d37 YQ |
653 | enum target_xfer_status |
654 | exec_read_partial_read_only (gdb_byte *readbuf, ULONGEST offset, | |
655 | ULONGEST len, ULONGEST *xfered_len) | |
656 | { | |
657 | /* It's unduly pedantic to refuse to look at the executable for | |
658 | read-only pieces; so do the equivalent of readonly regions aka | |
659 | QTro packet. */ | |
660 | if (exec_bfd != NULL) | |
661 | { | |
662 | asection *s; | |
663 | bfd_size_type size; | |
664 | bfd_vma vma; | |
665 | ||
666 | for (s = exec_bfd->sections; s; s = s->next) | |
667 | { | |
668 | if ((s->flags & SEC_LOAD) == 0 | |
669 | || (s->flags & SEC_READONLY) == 0) | |
670 | continue; | |
671 | ||
672 | vma = s->vma; | |
673 | size = bfd_get_section_size (s); | |
674 | if (vma <= offset && offset < (vma + size)) | |
675 | { | |
676 | ULONGEST amt; | |
677 | ||
678 | amt = (vma + size) - offset; | |
679 | if (amt > len) | |
680 | amt = len; | |
681 | ||
682 | amt = bfd_get_section_contents (exec_bfd, s, | |
683 | readbuf, offset - vma, amt); | |
684 | ||
685 | if (amt == 0) | |
686 | return TARGET_XFER_EOF; | |
687 | else | |
688 | { | |
689 | *xfered_len = amt; | |
690 | return TARGET_XFER_OK; | |
691 | } | |
692 | } | |
693 | } | |
694 | } | |
695 | ||
696 | /* Indicate failure to find the requested memory block. */ | |
697 | return TARGET_XFER_E_IO; | |
698 | } | |
699 | ||
a79b1bc6 | 700 | /* Return all read-only memory ranges found in the target section |
5a2eb0ef | 701 | table defined by SECTIONS and SECTIONS_END, starting at (and |
a79b1bc6 | 702 | intersected with) MEMADDR for LEN bytes. */ |
5a2eb0ef | 703 | |
a79b1bc6 SM |
704 | static std::vector<mem_range> |
705 | section_table_available_memory (CORE_ADDR memaddr, ULONGEST len, | |
e6ca34fc PA |
706 | struct target_section *sections, |
707 | struct target_section *sections_end) | |
708 | { | |
a79b1bc6 | 709 | std::vector<mem_range> memory; |
e6ca34fc | 710 | |
a79b1bc6 | 711 | for (target_section *p = sections; p < sections_end; p++) |
e6ca34fc | 712 | { |
2b2848e2 DE |
713 | if ((bfd_get_section_flags (p->the_bfd_section->owner, |
714 | p->the_bfd_section) | |
e6ca34fc PA |
715 | & SEC_READONLY) == 0) |
716 | continue; | |
717 | ||
718 | /* Copy the meta-data, adjusted. */ | |
719 | if (mem_ranges_overlap (p->addr, p->endaddr - p->addr, memaddr, len)) | |
720 | { | |
721 | ULONGEST lo1, hi1, lo2, hi2; | |
e6ca34fc PA |
722 | |
723 | lo1 = memaddr; | |
724 | hi1 = memaddr + len; | |
725 | ||
726 | lo2 = p->addr; | |
727 | hi2 = p->endaddr; | |
728 | ||
a79b1bc6 SM |
729 | CORE_ADDR start = std::max (lo1, lo2); |
730 | int length = std::min (hi1, hi2) - start; | |
e6ca34fc | 731 | |
a79b1bc6 | 732 | memory.emplace_back (start, length); |
e6ca34fc PA |
733 | } |
734 | } | |
735 | ||
736 | return memory; | |
737 | } | |
738 | ||
1ee79381 YQ |
739 | enum target_xfer_status |
740 | section_table_read_available_memory (gdb_byte *readbuf, ULONGEST offset, | |
741 | ULONGEST len, ULONGEST *xfered_len) | |
742 | { | |
a79b1bc6 SM |
743 | target_section_table *table = target_get_section_table (&exec_ops); |
744 | std::vector<mem_range> available_memory | |
745 | = section_table_available_memory (offset, len, | |
746 | table->sections, table->sections_end); | |
1ee79381 | 747 | |
a79b1bc6 | 748 | normalize_mem_ranges (&available_memory); |
1ee79381 | 749 | |
a79b1bc6 | 750 | for (const mem_range &r : available_memory) |
1ee79381 | 751 | { |
a79b1bc6 | 752 | if (mem_ranges_overlap (r.start, r.length, offset, len)) |
1ee79381 YQ |
753 | { |
754 | CORE_ADDR end; | |
755 | enum target_xfer_status status; | |
756 | ||
757 | /* Get the intersection window. */ | |
a79b1bc6 | 758 | end = std::min<CORE_ADDR> (offset + len, r.start + r.length); |
1ee79381 YQ |
759 | |
760 | gdb_assert (end - offset <= len); | |
761 | ||
a79b1bc6 | 762 | if (offset >= r.start) |
1ee79381 YQ |
763 | status = exec_read_partial_read_only (readbuf, offset, |
764 | end - offset, | |
765 | xfered_len); | |
766 | else | |
767 | { | |
a79b1bc6 | 768 | *xfered_len = r.start - offset; |
bc113b4e | 769 | status = TARGET_XFER_UNAVAILABLE; |
1ee79381 | 770 | } |
1ee79381 YQ |
771 | return status; |
772 | } | |
773 | } | |
1ee79381 YQ |
774 | |
775 | *xfered_len = len; | |
bc113b4e | 776 | return TARGET_XFER_UNAVAILABLE; |
1ee79381 YQ |
777 | } |
778 | ||
9b409511 | 779 | enum target_xfer_status |
07b82ea5 | 780 | section_table_xfer_memory_partial (gdb_byte *readbuf, const gdb_byte *writebuf, |
b55e14c7 | 781 | ULONGEST offset, ULONGEST len, |
9b409511 | 782 | ULONGEST *xfered_len, |
07b82ea5 PA |
783 | struct target_section *sections, |
784 | struct target_section *sections_end, | |
785 | const char *section_name) | |
c906108c | 786 | { |
020cc13c | 787 | int res; |
0542c86d | 788 | struct target_section *p; |
07b82ea5 PA |
789 | ULONGEST memaddr = offset; |
790 | ULONGEST memend = memaddr + len; | |
c906108c | 791 | |
b55e14c7 | 792 | if (len == 0) |
3e43a32a MS |
793 | internal_error (__FILE__, __LINE__, |
794 | _("failed internal consistency check")); | |
c906108c | 795 | |
348f8c02 | 796 | for (p = sections; p < sections_end; p++) |
c906108c | 797 | { |
2b2848e2 DE |
798 | struct bfd_section *asect = p->the_bfd_section; |
799 | bfd *abfd = asect->owner; | |
800 | ||
801 | if (section_name && strcmp (section_name, asect->name) != 0) | |
0963b4bd | 802 | continue; /* not the section we need. */ |
c906108c | 803 | if (memaddr >= p->addr) |
3db26b01 JB |
804 | { |
805 | if (memend <= p->endaddr) | |
806 | { | |
807 | /* Entire transfer is within this section. */ | |
07b82ea5 | 808 | if (writebuf) |
2b2848e2 | 809 | res = bfd_set_section_contents (abfd, asect, |
07b82ea5 | 810 | writebuf, memaddr - p->addr, |
85302095 AC |
811 | len); |
812 | else | |
2b2848e2 | 813 | res = bfd_get_section_contents (abfd, asect, |
07b82ea5 | 814 | readbuf, memaddr - p->addr, |
85302095 | 815 | len); |
9b409511 YQ |
816 | |
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 | else if (memaddr >= p->endaddr) | |
826 | { | |
827 | /* This section ends before the transfer starts. */ | |
828 | continue; | |
829 | } | |
830 | else | |
831 | { | |
832 | /* This section overlaps the transfer. Just do half. */ | |
833 | len = p->endaddr - memaddr; | |
07b82ea5 | 834 | if (writebuf) |
2b2848e2 | 835 | res = bfd_set_section_contents (abfd, asect, |
07b82ea5 | 836 | writebuf, memaddr - p->addr, |
85302095 AC |
837 | len); |
838 | else | |
2b2848e2 | 839 | res = bfd_get_section_contents (abfd, asect, |
07b82ea5 | 840 | readbuf, memaddr - p->addr, |
85302095 | 841 | len); |
9b409511 YQ |
842 | if (res != 0) |
843 | { | |
844 | *xfered_len = len; | |
845 | return TARGET_XFER_OK; | |
846 | } | |
847 | else | |
848 | return TARGET_XFER_EOF; | |
3db26b01 JB |
849 | } |
850 | } | |
c906108c SS |
851 | } |
852 | ||
9b409511 | 853 | return TARGET_XFER_EOF; /* We can't help. */ |
c906108c | 854 | } |
348f8c02 | 855 | |
70221824 | 856 | static struct target_section_table * |
07b82ea5 | 857 | exec_get_section_table (struct target_ops *ops) |
348f8c02 | 858 | { |
07b82ea5 | 859 | return current_target_sections; |
348f8c02 PA |
860 | } |
861 | ||
9b409511 | 862 | static enum target_xfer_status |
07b82ea5 PA |
863 | exec_xfer_partial (struct target_ops *ops, enum target_object object, |
864 | const char *annex, gdb_byte *readbuf, | |
865 | const gdb_byte *writebuf, | |
9b409511 | 866 | ULONGEST offset, ULONGEST len, ULONGEST *xfered_len) |
348f8c02 | 867 | { |
07b82ea5 PA |
868 | struct target_section_table *table = target_get_section_table (ops); |
869 | ||
870 | if (object == TARGET_OBJECT_MEMORY) | |
871 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 872 | offset, len, xfered_len, |
07b82ea5 PA |
873 | table->sections, |
874 | table->sections_end, | |
875 | NULL); | |
876 | else | |
2ed4b548 | 877 | return TARGET_XFER_E_IO; |
348f8c02 | 878 | } |
c906108c | 879 | \f |
c5aa993b | 880 | |
c906108c | 881 | void |
07b82ea5 | 882 | print_section_info (struct target_section_table *t, bfd *abfd) |
c906108c | 883 | { |
5af949e3 | 884 | struct gdbarch *gdbarch = gdbarch_from_bfd (abfd); |
0542c86d | 885 | struct target_section *p; |
17a912b6 | 886 | /* FIXME: 16 is not wide enough when gdbarch_addr_bit > 64. */ |
5af949e3 | 887 | int wid = gdbarch_addr_bit (gdbarch) <= 32 ? 8 : 16; |
c906108c | 888 | |
c5aa993b | 889 | printf_filtered ("\t`%s', ", bfd_get_filename (abfd)); |
c906108c | 890 | wrap_here (" "); |
a3f17187 | 891 | printf_filtered (_("file type %s.\n"), bfd_get_target (abfd)); |
c906108c | 892 | if (abfd == exec_bfd) |
51bee8e9 | 893 | { |
3e43a32a MS |
894 | /* gcc-3.4 does not like the initialization in |
895 | <p == t->sections_end>. */ | |
d904de5b | 896 | bfd_vma displacement = 0; |
2f1bdd26 | 897 | bfd_vma entry_point; |
51bee8e9 JK |
898 | |
899 | for (p = t->sections; p < t->sections_end; p++) | |
900 | { | |
2b2848e2 DE |
901 | struct bfd_section *psect = p->the_bfd_section; |
902 | bfd *pbfd = psect->owner; | |
51bee8e9 | 903 | |
2b2848e2 | 904 | if ((bfd_get_section_flags (pbfd, psect) & (SEC_ALLOC | SEC_LOAD)) |
51bee8e9 JK |
905 | != (SEC_ALLOC | SEC_LOAD)) |
906 | continue; | |
907 | ||
2b2848e2 DE |
908 | if (bfd_get_section_vma (pbfd, psect) <= abfd->start_address |
909 | && abfd->start_address < (bfd_get_section_vma (pbfd, psect) | |
910 | + bfd_get_section_size (psect))) | |
51bee8e9 | 911 | { |
2b2848e2 | 912 | displacement = p->addr - bfd_get_section_vma (pbfd, psect); |
51bee8e9 JK |
913 | break; |
914 | } | |
915 | } | |
916 | if (p == t->sections_end) | |
b37520b6 | 917 | warning (_("Cannot find section for the entry point of %s."), |
d904de5b | 918 | bfd_get_filename (abfd)); |
51bee8e9 | 919 | |
2f1bdd26 MGD |
920 | entry_point = gdbarch_addr_bits_remove (gdbarch, |
921 | bfd_get_start_address (abfd) | |
922 | + displacement); | |
51bee8e9 | 923 | printf_filtered (_("\tEntry point: %s\n"), |
2f1bdd26 | 924 | paddress (gdbarch, entry_point)); |
51bee8e9 | 925 | } |
07b82ea5 | 926 | for (p = t->sections; p < t->sections_end; p++) |
c906108c | 927 | { |
2b2848e2 DE |
928 | struct bfd_section *psect = p->the_bfd_section; |
929 | bfd *pbfd = psect->owner; | |
930 | ||
bb599908 PH |
931 | printf_filtered ("\t%s", hex_string_custom (p->addr, wid)); |
932 | printf_filtered (" - %s", hex_string_custom (p->endaddr, wid)); | |
bcf16802 KB |
933 | |
934 | /* FIXME: A format of "08l" is not wide enough for file offsets | |
935 | larger than 4GB. OTOH, making it "016l" isn't desirable either | |
936 | since most output will then be much wider than necessary. It | |
937 | may make sense to test the size of the file and choose the | |
938 | format string accordingly. */ | |
a3f17187 | 939 | /* FIXME: i18n: Need to rewrite this sentence. */ |
c906108c SS |
940 | if (info_verbose) |
941 | printf_filtered (" @ %s", | |
2b2848e2 DE |
942 | hex_string_custom (psect->filepos, 8)); |
943 | printf_filtered (" is %s", bfd_section_name (pbfd, psect)); | |
944 | if (pbfd != abfd) | |
945 | printf_filtered (" in %s", bfd_get_filename (pbfd)); | |
c906108c SS |
946 | printf_filtered ("\n"); |
947 | } | |
948 | } | |
949 | ||
950 | static void | |
fba45db2 | 951 | exec_files_info (struct target_ops *t) |
c906108c | 952 | { |
57008375 JK |
953 | if (exec_bfd) |
954 | print_section_info (current_target_sections, exec_bfd); | |
955 | else | |
956 | puts_filtered (_("\t<no file loaded>\n")); | |
c906108c SS |
957 | } |
958 | ||
959 | static void | |
fba45db2 | 960 | set_section_command (char *args, int from_tty) |
c906108c | 961 | { |
0542c86d | 962 | struct target_section *p; |
c906108c SS |
963 | char *secname; |
964 | unsigned seclen; | |
965 | unsigned long secaddr; | |
966 | char secprint[100]; | |
967 | long offset; | |
07b82ea5 | 968 | struct target_section_table *table; |
c906108c SS |
969 | |
970 | if (args == 0) | |
8a3fe4f8 | 971 | error (_("Must specify section name and its virtual address")); |
c906108c | 972 | |
0963b4bd | 973 | /* Parse out section name. */ |
c5aa993b | 974 | for (secname = args; !isspace (*args); args++); |
c906108c SS |
975 | seclen = args - secname; |
976 | ||
0963b4bd | 977 | /* Parse out new virtual address. */ |
c906108c SS |
978 | secaddr = parse_and_eval_address (args); |
979 | ||
07b82ea5 PA |
980 | table = current_target_sections; |
981 | for (p = table->sections; p < table->sections_end; p++) | |
c5aa993b | 982 | { |
57008375 | 983 | if (!strncmp (secname, bfd_section_name (p->bfd, |
3e43a32a | 984 | p->the_bfd_section), seclen) |
57008375 | 985 | && bfd_section_name (p->bfd, p->the_bfd_section)[seclen] == '\0') |
c5aa993b JM |
986 | { |
987 | offset = secaddr - p->addr; | |
988 | p->addr += offset; | |
989 | p->endaddr += offset; | |
990 | if (from_tty) | |
991 | exec_files_info (&exec_ops); | |
992 | return; | |
993 | } | |
c906108c | 994 | } |
c906108c SS |
995 | if (seclen >= sizeof (secprint)) |
996 | seclen = sizeof (secprint) - 1; | |
997 | strncpy (secprint, secname, seclen); | |
998 | secprint[seclen] = '\0'; | |
8a3fe4f8 | 999 | error (_("Section %s not found"), secprint); |
c906108c SS |
1000 | } |
1001 | ||
30510692 DJ |
1002 | /* If we can find a section in FILENAME with BFD index INDEX, adjust |
1003 | it to ADDRESS. */ | |
c1bd25fd DJ |
1004 | |
1005 | void | |
1006 | exec_set_section_address (const char *filename, int index, CORE_ADDR address) | |
1007 | { | |
0542c86d | 1008 | struct target_section *p; |
07b82ea5 | 1009 | struct target_section_table *table; |
c1bd25fd | 1010 | |
07b82ea5 PA |
1011 | table = current_target_sections; |
1012 | for (p = table->sections; p < table->sections_end; p++) | |
c1bd25fd | 1013 | { |
2b2848e2 | 1014 | if (filename_cmp (filename, p->the_bfd_section->owner->filename) == 0 |
30510692 | 1015 | && index == p->the_bfd_section->index) |
c1bd25fd | 1016 | { |
30510692 | 1017 | p->endaddr += address - p->addr; |
c1bd25fd | 1018 | p->addr = address; |
c1bd25fd DJ |
1019 | } |
1020 | } | |
1021 | } | |
1022 | ||
c906108c SS |
1023 | /* If mourn is being called in all the right places, this could be say |
1024 | `gdb internal error' (since generic_mourn calls | |
1025 | breakpoint_init_inferior). */ | |
1026 | ||
1027 | static int | |
3db08215 MM |
1028 | ignore (struct target_ops *ops, struct gdbarch *gdbarch, |
1029 | struct bp_target_info *bp_tgt) | |
c906108c SS |
1030 | { |
1031 | return 0; | |
1032 | } | |
1033 | ||
73971819 PA |
1034 | /* Implement the to_remove_breakpoint method. */ |
1035 | ||
1036 | static int | |
1037 | exec_remove_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, | |
1038 | struct bp_target_info *bp_tgt, | |
1039 | enum remove_bp_reason reason) | |
1040 | { | |
1041 | return 0; | |
1042 | } | |
1043 | ||
c35b1492 PA |
1044 | static int |
1045 | exec_has_memory (struct target_ops *ops) | |
1046 | { | |
1047 | /* We can provide memory if we have any file/target sections to read | |
1048 | from. */ | |
1049 | return (current_target_sections->sections | |
1050 | != current_target_sections->sections_end); | |
1051 | } | |
1052 | ||
83814951 TT |
1053 | static char * |
1054 | exec_make_note_section (struct target_ops *self, bfd *obfd, int *note_size) | |
1055 | { | |
1056 | error (_("Can't create a corefile")); | |
1057 | } | |
be4d1333 | 1058 | |
c906108c SS |
1059 | /* Fill in the exec file target vector. Very few entries need to be |
1060 | defined. */ | |
1061 | ||
be4d1333 | 1062 | static void |
fba45db2 | 1063 | init_exec_ops (void) |
c906108c SS |
1064 | { |
1065 | exec_ops.to_shortname = "exec"; | |
1066 | exec_ops.to_longname = "Local exec file"; | |
1067 | exec_ops.to_doc = "Use an executable file as a target.\n\ | |
1068 | Specify the filename of the executable file."; | |
1adeb98a | 1069 | exec_ops.to_open = exec_open; |
6c95b8df | 1070 | exec_ops.to_close = exec_close_1; |
07b82ea5 PA |
1071 | exec_ops.to_xfer_partial = exec_xfer_partial; |
1072 | exec_ops.to_get_section_table = exec_get_section_table; | |
c906108c SS |
1073 | exec_ops.to_files_info = exec_files_info; |
1074 | exec_ops.to_insert_breakpoint = ignore; | |
73971819 | 1075 | exec_ops.to_remove_breakpoint = exec_remove_breakpoint; |
c906108c | 1076 | exec_ops.to_stratum = file_stratum; |
c35b1492 | 1077 | exec_ops.to_has_memory = exec_has_memory; |
be4d1333 | 1078 | exec_ops.to_make_corefile_notes = exec_make_note_section; |
b427c1bc | 1079 | exec_ops.to_find_memory_regions = objfile_find_memory_regions; |
c5aa993b | 1080 | exec_ops.to_magic = OPS_MAGIC; |
c906108c SS |
1081 | } |
1082 | ||
1083 | void | |
fba45db2 | 1084 | _initialize_exec (void) |
c906108c SS |
1085 | { |
1086 | struct cmd_list_element *c; | |
1087 | ||
1088 | init_exec_ops (); | |
1089 | ||
1090 | if (!dbx_commands) | |
1091 | { | |
1a966eab AC |
1092 | c = add_cmd ("file", class_files, file_command, _("\ |
1093 | Use FILE as program to be debugged.\n\ | |
c906108c SS |
1094 | It is read for its symbols, for getting the contents of pure memory,\n\ |
1095 | and it is the program executed when you use the `run' command.\n\ | |
1096 | If FILE cannot be found as specified, your execution directory path\n\ | |
1097 | ($PATH) is searched for a command of that name.\n\ | |
1a966eab | 1098 | No arg means to have no executable file and no symbols."), &cmdlist); |
5ba2abeb | 1099 | set_cmd_completer (c, filename_completer); |
c906108c SS |
1100 | } |
1101 | ||
1a966eab AC |
1102 | c = add_cmd ("exec-file", class_files, exec_file_command, _("\ |
1103 | Use FILE as program for getting contents of pure memory.\n\ | |
c906108c SS |
1104 | If FILE cannot be found as specified, your execution directory path\n\ |
1105 | is searched for a command of that name.\n\ | |
1a966eab | 1106 | No arg means have no executable file."), &cmdlist); |
5ba2abeb | 1107 | set_cmd_completer (c, filename_completer); |
c906108c | 1108 | |
1bedd215 AC |
1109 | add_com ("section", class_files, set_section_command, _("\ |
1110 | Change the base address of section SECTION of the exec file to ADDR.\n\ | |
c906108c SS |
1111 | This can be used if the exec file does not contain section addresses,\n\ |
1112 | (such as in the a.out format), or when the addresses specified in the\n\ | |
1113 | file itself are wrong. Each section must be changed separately. The\n\ | |
1bedd215 | 1114 | ``info files'' command lists all the sections and their addresses.")); |
c906108c | 1115 | |
5bf193a2 AC |
1116 | add_setshow_boolean_cmd ("write", class_support, &write_files, _("\ |
1117 | Set writing into executable and core files."), _("\ | |
1118 | Show writing into executable and core files."), NULL, | |
1119 | NULL, | |
920d2a44 | 1120 | show_write_files, |
5bf193a2 | 1121 | &setlist, &showlist); |
c5aa993b | 1122 | |
9852c492 | 1123 | add_target_with_completer (&exec_ops, filename_completer); |
c906108c | 1124 | } |