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 | |
9a4105ab | 48 | void (*deprecated_file_changed_hook) (char *); |
c906108c SS |
49 | |
50 | /* Prototypes for local functions */ | |
51 | ||
a14ed312 | 52 | static void file_command (char *, int); |
c906108c | 53 | |
a14ed312 | 54 | static void set_section_command (char *, int); |
c906108c | 55 | |
a14ed312 | 56 | static void exec_files_info (struct target_ops *); |
c906108c | 57 | |
a14ed312 | 58 | static void init_exec_ops (void); |
c906108c | 59 | |
c906108c SS |
60 | /* The target vector for executable files. */ |
61 | ||
e8b2341c | 62 | static struct target_ops exec_ops; |
c906108c | 63 | |
c906108c SS |
64 | /* Whether to open exec and core files read-only or read-write. */ |
65 | ||
66 | int write_files = 0; | |
920d2a44 AC |
67 | static void |
68 | show_write_files (struct ui_file *file, int from_tty, | |
69 | struct cmd_list_element *c, const char *value) | |
70 | { | |
71 | fprintf_filtered (file, _("Writing into executable and core files is %s.\n"), | |
72 | value); | |
73 | } | |
74 | ||
c906108c | 75 | |
4c42eaff | 76 | static void |
014f9477 | 77 | exec_open (const char *args, int from_tty) |
1adeb98a FN |
78 | { |
79 | target_preopen (from_tty); | |
80 | exec_file_attach (args, from_tty); | |
81 | } | |
82 | ||
07b82ea5 PA |
83 | /* Close and clear exec_bfd. If we end up with no target sections to |
84 | read memory from, this unpushes the exec_ops target. */ | |
85 | ||
6c95b8df PA |
86 | void |
87 | exec_close (void) | |
07b82ea5 PA |
88 | { |
89 | if (exec_bfd) | |
90 | { | |
91 | bfd *abfd = exec_bfd; | |
07b82ea5 | 92 | |
cbb099e8 | 93 | gdb_bfd_unref (abfd); |
07b82ea5 PA |
94 | |
95 | /* Removing target sections may close the exec_ops target. | |
96 | Clear exec_bfd before doing so to prevent recursion. */ | |
97 | exec_bfd = NULL; | |
98 | exec_bfd_mtime = 0; | |
99 | ||
046ac79f | 100 | remove_target_sections (&exec_bfd); |
1f0c4988 JK |
101 | |
102 | xfree (exec_filename); | |
103 | exec_filename = NULL; | |
07b82ea5 PA |
104 | } |
105 | } | |
106 | ||
6c95b8df PA |
107 | /* This is the target_close implementation. Clears all target |
108 | sections and closes all executable bfds from all program spaces. */ | |
109 | ||
c906108c | 110 | static void |
de90e03d | 111 | exec_close_1 (struct target_ops *self) |
c906108c | 112 | { |
ab16fce8 | 113 | struct program_space *ss; |
5ed8105e | 114 | scoped_restore_current_program_space restore_pspace; |
6c95b8df | 115 | |
ab16fce8 | 116 | ALL_PSPACES (ss) |
5ed8105e PA |
117 | { |
118 | set_current_program_space (ss); | |
119 | clear_section_table (current_target_sections); | |
120 | exec_close (); | |
121 | } | |
c906108c SS |
122 | } |
123 | ||
1adeb98a FN |
124 | void |
125 | exec_file_clear (int from_tty) | |
126 | { | |
127 | /* Remove exec file. */ | |
6c95b8df | 128 | exec_close (); |
1adeb98a FN |
129 | |
130 | if (from_tty) | |
a3f17187 | 131 | printf_unfiltered (_("No executable file now.\n")); |
1adeb98a FN |
132 | } |
133 | ||
ecf45d2c | 134 | /* See exec.h. */ |
a10de604 GB |
135 | |
136 | void | |
ecf45d2c SL |
137 | try_open_exec_file (const char *exec_file_host, struct inferior *inf, |
138 | symfile_add_flags add_flags) | |
a10de604 | 139 | { |
88178e82 | 140 | struct cleanup *old_chain; |
57d1de9c | 141 | struct gdb_exception prev_err = exception_none; |
a10de604 | 142 | |
ecf45d2c | 143 | old_chain = make_cleanup (free_current_contents, &prev_err.message); |
57d1de9c LM |
144 | |
145 | /* exec_file_attach and symbol_file_add_main may throw an error if the file | |
146 | cannot be opened either locally or remotely. | |
147 | ||
148 | This happens for example, when the file is first found in the local | |
149 | sysroot (above), and then disappears (a TOCTOU race), or when it doesn't | |
150 | exist in the target filesystem, or when the file does exist, but | |
151 | is not readable. | |
88178e82 | 152 | |
57d1de9c LM |
153 | Even without a symbol file, the remote-based debugging session should |
154 | continue normally instead of ending abruptly. Hence we catch thrown | |
155 | errors/exceptions in the following code. */ | |
156 | TRY | |
157 | { | |
ecf45d2c SL |
158 | /* We must do this step even if exec_file_host is NULL, so that |
159 | exec_file_attach will clear state. */ | |
160 | exec_file_attach (exec_file_host, add_flags & SYMFILE_VERBOSE); | |
57d1de9c LM |
161 | } |
162 | CATCH (err, RETURN_MASK_ERROR) | |
163 | { | |
164 | if (err.message != NULL) | |
165 | warning ("%s", err.message); | |
166 | ||
167 | prev_err = err; | |
168 | ||
169 | /* Save message so it doesn't get trashed by the catch below. */ | |
b5e1db87 LM |
170 | if (err.message != NULL) |
171 | prev_err.message = xstrdup (err.message); | |
57d1de9c LM |
172 | } |
173 | END_CATCH | |
174 | ||
ecf45d2c | 175 | if (exec_file_host != NULL) |
57d1de9c | 176 | { |
ecf45d2c SL |
177 | TRY |
178 | { | |
179 | symbol_file_add_main (exec_file_host, add_flags); | |
180 | } | |
181 | CATCH (err, RETURN_MASK_ERROR) | |
182 | { | |
183 | if (!exception_print_same (prev_err, err)) | |
184 | warning ("%s", err.message); | |
185 | } | |
186 | END_CATCH | |
57d1de9c | 187 | } |
ecf45d2c SL |
188 | |
189 | do_cleanups (old_chain); | |
190 | } | |
191 | ||
192 | /* See gdbcore.h. */ | |
193 | ||
194 | void | |
195 | exec_file_locate_attach (int pid, int defer_bp_reset, int from_tty) | |
196 | { | |
197 | char *exec_file_target, *exec_file_host; | |
198 | struct cleanup *old_chain; | |
199 | symfile_add_flags add_flags = 0; | |
200 | ||
201 | /* Do nothing if we already have an executable filename. */ | |
202 | if (get_exec_file (0) != NULL) | |
203 | return; | |
204 | ||
205 | /* Try to determine a filename from the process itself. */ | |
206 | exec_file_target = target_pid_to_exec_file (pid); | |
207 | if (exec_file_target == NULL) | |
57d1de9c | 208 | { |
ecf45d2c SL |
209 | warning (_("No executable has been specified and target does not " |
210 | "support\n" | |
211 | "determining executable automatically. " | |
212 | "Try using the \"file\" command.")); | |
213 | return; | |
57d1de9c | 214 | } |
88178e82 | 215 | |
ecf45d2c SL |
216 | exec_file_host = exec_file_find (exec_file_target, NULL); |
217 | old_chain = make_cleanup (xfree, exec_file_host); | |
218 | ||
219 | if (defer_bp_reset) | |
220 | add_flags |= SYMFILE_DEFER_BP_RESET; | |
221 | ||
222 | if (from_tty) | |
223 | add_flags |= SYMFILE_VERBOSE; | |
224 | ||
225 | /* Attempt to open the exec file. */ | |
226 | try_open_exec_file (exec_file_host, current_inferior (), add_flags); | |
88178e82 | 227 | do_cleanups (old_chain); |
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. */ | |
253 | gdb_bfd_ref (exec_bfd); | |
192b62ce TT |
254 | gdb_bfd_ref_ptr exec_bfd_holder (exec_bfd); |
255 | ||
c906108c | 256 | /* Remove any previous exec file. */ |
6c95b8df | 257 | exec_close (); |
c906108c SS |
258 | |
259 | /* Now open and digest the file the user requested, if any. */ | |
260 | ||
1adeb98a FN |
261 | if (!filename) |
262 | { | |
263 | if (from_tty) | |
a3f17187 | 264 | printf_unfiltered (_("No executable file now.\n")); |
7a107747 DJ |
265 | |
266 | set_gdbarch_from_file (NULL); | |
1adeb98a FN |
267 | } |
268 | else | |
c906108c | 269 | { |
64c0b5de | 270 | int load_via_target = 0; |
14278e1f | 271 | const char *scratch_pathname, *canonical_pathname; |
c906108c | 272 | int scratch_chan; |
07b82ea5 | 273 | struct target_section *sections = NULL, *sections_end = NULL; |
d18b8b7a | 274 | char **matching; |
c5aa993b | 275 | |
64c0b5de GB |
276 | if (is_target_filename (filename)) |
277 | { | |
278 | if (target_filesystem_is_local ()) | |
279 | filename += strlen (TARGET_SYSROOT_PREFIX); | |
280 | else | |
281 | load_via_target = 1; | |
282 | } | |
283 | ||
14278e1f | 284 | gdb::unique_xmalloc_ptr<char> canonical_storage, scratch_storage; |
64c0b5de | 285 | if (load_via_target) |
c5aa993b | 286 | { |
64c0b5de GB |
287 | /* gdb_bfd_fopen does not support "target:" filenames. */ |
288 | if (write_files) | |
289 | warning (_("writing into executable files is " | |
290 | "not supported for %s sysroots"), | |
291 | TARGET_SYSROOT_PREFIX); | |
292 | ||
14278e1f | 293 | scratch_pathname = filename; |
64c0b5de | 294 | scratch_chan = -1; |
64c0b5de | 295 | canonical_pathname = scratch_pathname; |
c5aa993b | 296 | } |
64c0b5de GB |
297 | else |
298 | { | |
14278e1f TT |
299 | char *temp_pathname; |
300 | ||
64c0b5de GB |
301 | scratch_chan = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, |
302 | filename, write_files ? | |
303 | O_RDWR | O_BINARY : O_RDONLY | O_BINARY, | |
14278e1f | 304 | &temp_pathname); |
64c0b5de GB |
305 | #if defined(__GO32__) || defined(_WIN32) || defined(__CYGWIN__) |
306 | if (scratch_chan < 0) | |
307 | { | |
0ae1c716 | 308 | char *exename = (char *) alloca (strlen (filename) + 5); |
64c0b5de GB |
309 | |
310 | strcat (strcpy (exename, filename), ".exe"); | |
311 | scratch_chan = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, | |
312 | exename, write_files ? | |
313 | O_RDWR | O_BINARY | |
314 | : O_RDONLY | O_BINARY, | |
14278e1f | 315 | &temp_pathname); |
64c0b5de | 316 | } |
c906108c | 317 | #endif |
64c0b5de GB |
318 | if (scratch_chan < 0) |
319 | perror_with_name (filename); | |
a4453b7e | 320 | |
14278e1f TT |
321 | scratch_storage.reset (temp_pathname); |
322 | scratch_pathname = temp_pathname; | |
a4453b7e | 323 | |
64c0b5de GB |
324 | /* gdb_bfd_open (and its variants) prefers canonicalized |
325 | pathname for better BFD caching. */ | |
14278e1f TT |
326 | canonical_storage = gdb_realpath (scratch_pathname); |
327 | canonical_pathname = canonical_storage.get (); | |
64c0b5de | 328 | } |
1f0c4988 | 329 | |
192b62ce | 330 | gdb_bfd_ref_ptr temp; |
64c0b5de | 331 | if (write_files && !load_via_target) |
192b62ce TT |
332 | temp = gdb_bfd_fopen (canonical_pathname, gnutarget, |
333 | FOPEN_RUB, scratch_chan); | |
1c00ec6b | 334 | else |
192b62ce TT |
335 | temp = gdb_bfd_open (canonical_pathname, gnutarget, scratch_chan); |
336 | exec_bfd = temp.release (); | |
c906108c SS |
337 | |
338 | if (!exec_bfd) | |
9fe4a216 | 339 | { |
d5131498 | 340 | error (_("\"%s\": could not open as an executable file: %s."), |
9fe4a216 TT |
341 | scratch_pathname, bfd_errmsg (bfd_get_error ())); |
342 | } | |
c906108c | 343 | |
64c0b5de GB |
344 | /* gdb_realpath_keepfile resolves symlinks on the local |
345 | filesystem and so cannot be used for "target:" files. */ | |
1f0c4988 | 346 | gdb_assert (exec_filename == NULL); |
64c0b5de GB |
347 | if (load_via_target) |
348 | exec_filename = xstrdup (bfd_get_filename (exec_bfd)); | |
349 | else | |
4971c9a7 | 350 | exec_filename = gdb_realpath_keepfile (scratch_pathname).release (); |
1f0c4988 | 351 | |
d18b8b7a | 352 | if (!bfd_check_format_matches (exec_bfd, bfd_object, &matching)) |
c906108c SS |
353 | { |
354 | /* Make sure to close exec_bfd, or else "run" might try to use | |
355 | it. */ | |
6c95b8df | 356 | exec_close (); |
8a3fe4f8 | 357 | error (_("\"%s\": not in executable format: %s"), |
d18b8b7a HZ |
358 | scratch_pathname, |
359 | gdb_bfd_errmsg (bfd_get_error (), matching)); | |
c906108c SS |
360 | } |
361 | ||
07b82ea5 | 362 | if (build_section_table (exec_bfd, §ions, §ions_end)) |
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\": can't find the file sections: %s"), |
c906108c SS |
368 | scratch_pathname, bfd_errmsg (bfd_get_error ())); |
369 | } | |
370 | ||
c04ea773 DJ |
371 | exec_bfd_mtime = bfd_get_mtime (exec_bfd); |
372 | ||
c906108c SS |
373 | validate_files (); |
374 | ||
375 | set_gdbarch_from_file (exec_bfd); | |
376 | ||
07b82ea5 | 377 | /* Add the executable's sections to the current address spaces' |
6c95b8df PA |
378 | list of sections. This possibly pushes the exec_ops |
379 | target. */ | |
ed9eebaf | 380 | add_target_sections (&exec_bfd, sections, sections_end); |
07b82ea5 | 381 | xfree (sections); |
c906108c SS |
382 | |
383 | /* Tell display code (if any) about the changed file name. */ | |
9a4105ab AC |
384 | if (deprecated_exec_file_display_hook) |
385 | (*deprecated_exec_file_display_hook) (filename); | |
c906108c | 386 | } |
9b333ba3 | 387 | |
ce7d4522 | 388 | bfd_cache_close_all (); |
781b42b0 | 389 | observer_notify_executable_changed (); |
c906108c SS |
390 | } |
391 | ||
392 | /* Process the first arg in ARGS as the new exec file. | |
393 | ||
c5aa993b JM |
394 | Note that we have to explicitly ignore additional args, since we can |
395 | be called from file_command(), which also calls symbol_file_command() | |
1adeb98a FN |
396 | which can take multiple args. |
397 | ||
0963b4bd | 398 | If ARGS is NULL, we just want to close the exec file. */ |
c906108c | 399 | |
1adeb98a | 400 | static void |
fba45db2 | 401 | exec_file_command (char *args, int from_tty) |
c906108c | 402 | { |
1adeb98a | 403 | char *filename; |
4c42eaff DJ |
404 | |
405 | if (from_tty && target_has_execution | |
406 | && !query (_("A program is being debugged already.\n" | |
407 | "Are you sure you want to change the file? "))) | |
408 | error (_("File not changed.")); | |
1adeb98a FN |
409 | |
410 | if (args) | |
411 | { | |
412 | /* Scan through the args and pick up the first non option arg | |
413 | as the filename. */ | |
414 | ||
773a1edc TT |
415 | gdb_argv built_argv (args); |
416 | char **argv = built_argv.get (); | |
1adeb98a FN |
417 | |
418 | for (; (*argv != NULL) && (**argv == '-'); argv++) | |
419 | {; | |
420 | } | |
421 | if (*argv == NULL) | |
8a3fe4f8 | 422 | error (_("No executable file name was specified")); |
1adeb98a | 423 | |
773a1edc TT |
424 | gdb::unique_xmalloc_ptr<char> filename (tilde_expand (*argv)); |
425 | exec_file_attach (filename.get (), from_tty); | |
1adeb98a FN |
426 | } |
427 | else | |
428 | exec_file_attach (NULL, from_tty); | |
c906108c SS |
429 | } |
430 | ||
0963b4bd | 431 | /* Set both the exec file and the symbol file, in one command. |
c906108c SS |
432 | What a novelty. Why did GDB go through four major releases before this |
433 | command was added? */ | |
434 | ||
435 | static void | |
fba45db2 | 436 | file_command (char *arg, int from_tty) |
c906108c SS |
437 | { |
438 | /* FIXME, if we lose on reading the symbol file, we should revert | |
439 | the exec file, but that's rough. */ | |
440 | exec_file_command (arg, from_tty); | |
441 | symbol_file_command (arg, from_tty); | |
9a4105ab AC |
442 | if (deprecated_file_changed_hook) |
443 | deprecated_file_changed_hook (arg); | |
c906108c | 444 | } |
c906108c | 445 | \f |
c5aa993b | 446 | |
0963b4bd | 447 | /* Locate all mappable sections of a BFD file. |
c906108c SS |
448 | table_pp_char is a char * to get it through bfd_map_over_sections; |
449 | we cast it back to its proper type. */ | |
450 | ||
451 | static void | |
7be0c536 AC |
452 | add_to_section_table (bfd *abfd, struct bfd_section *asect, |
453 | void *table_pp_char) | |
c906108c | 454 | { |
0542c86d | 455 | struct target_section **table_pp = (struct target_section **) table_pp_char; |
c906108c SS |
456 | flagword aflag; |
457 | ||
2b2848e2 DE |
458 | gdb_assert (abfd == asect->owner); |
459 | ||
0f5d55d8 JB |
460 | /* Check the section flags, but do not discard zero-length sections, since |
461 | some symbols may still be attached to this section. For instance, we | |
462 | encountered on sparc-solaris 2.10 a shared library with an empty .bss | |
463 | section to which a symbol named "_end" was attached. The address | |
464 | of this symbol still needs to be relocated. */ | |
c906108c SS |
465 | aflag = bfd_get_section_flags (abfd, asect); |
466 | if (!(aflag & SEC_ALLOC)) | |
467 | return; | |
0f5d55d8 | 468 | |
046ac79f | 469 | (*table_pp)->owner = NULL; |
c906108c SS |
470 | (*table_pp)->the_bfd_section = asect; |
471 | (*table_pp)->addr = bfd_section_vma (abfd, asect); | |
472 | (*table_pp)->endaddr = (*table_pp)->addr + bfd_section_size (abfd, asect); | |
473 | (*table_pp)++; | |
474 | } | |
475 | ||
a5b1fd27 DE |
476 | /* See exec.h. */ |
477 | ||
478 | void | |
479 | clear_section_table (struct target_section_table *table) | |
480 | { | |
481 | xfree (table->sections); | |
482 | table->sections = table->sections_end = NULL; | |
483 | } | |
484 | ||
485 | /* Resize section table TABLE by ADJUSTMENT. | |
486 | ADJUSTMENT may be negative, in which case the caller must have already | |
487 | removed the sections being deleted. | |
488 | Returns the old size. */ | |
489 | ||
490 | static int | |
491 | resize_section_table (struct target_section_table *table, int adjustment) | |
07b82ea5 | 492 | { |
07b82ea5 PA |
493 | int old_count; |
494 | int new_count; | |
495 | ||
07b82ea5 PA |
496 | old_count = table->sections_end - table->sections; |
497 | ||
a5b1fd27 | 498 | new_count = adjustment + old_count; |
07b82ea5 PA |
499 | |
500 | if (new_count) | |
501 | { | |
224c3ddb SM |
502 | table->sections = XRESIZEVEC (struct target_section, table->sections, |
503 | new_count); | |
07b82ea5 PA |
504 | table->sections_end = table->sections + new_count; |
505 | } | |
506 | else | |
a5b1fd27 | 507 | clear_section_table (table); |
07b82ea5 PA |
508 | |
509 | return old_count; | |
510 | } | |
511 | ||
c906108c SS |
512 | /* Builds a section table, given args BFD, SECTABLE_PTR, SECEND_PTR. |
513 | Returns 0 if OK, 1 on error. */ | |
514 | ||
515 | int | |
0542c86d PA |
516 | build_section_table (struct bfd *some_bfd, struct target_section **start, |
517 | struct target_section **end) | |
c906108c SS |
518 | { |
519 | unsigned count; | |
520 | ||
521 | count = bfd_count_sections (some_bfd); | |
522 | if (*start) | |
b8c9b27d | 523 | xfree (* start); |
8d749320 | 524 | *start = XNEWVEC (struct target_section, count); |
c906108c | 525 | *end = *start; |
c5aa993b | 526 | bfd_map_over_sections (some_bfd, add_to_section_table, (char *) end); |
c906108c | 527 | if (*end > *start + count) |
3e43a32a MS |
528 | internal_error (__FILE__, __LINE__, |
529 | _("failed internal consistency check")); | |
c906108c SS |
530 | /* We could realloc the table, but it probably loses for most files. */ |
531 | return 0; | |
532 | } | |
07b82ea5 PA |
533 | |
534 | /* Add the sections array defined by [SECTIONS..SECTIONS_END[ to the | |
535 | current set of target sections. */ | |
536 | ||
537 | void | |
046ac79f | 538 | add_target_sections (void *owner, |
ed9eebaf | 539 | struct target_section *sections, |
07b82ea5 PA |
540 | struct target_section *sections_end) |
541 | { | |
542 | int count; | |
543 | struct target_section_table *table = current_target_sections; | |
544 | ||
545 | count = sections_end - sections; | |
546 | ||
547 | if (count > 0) | |
548 | { | |
549 | int space = resize_section_table (table, count); | |
ed9eebaf | 550 | int i; |
d7f9d729 | 551 | |
ed9eebaf TT |
552 | for (i = 0; i < count; ++i) |
553 | { | |
554 | table->sections[space + i] = sections[i]; | |
046ac79f | 555 | table->sections[space + i].owner = owner; |
ed9eebaf | 556 | } |
07b82ea5 PA |
557 | |
558 | /* If these are the first file sections we can provide memory | |
559 | from, push the file_stratum target. */ | |
ab16fce8 TT |
560 | if (!target_is_pushed (&exec_ops)) |
561 | push_target (&exec_ops); | |
07b82ea5 PA |
562 | } |
563 | } | |
564 | ||
76ad5e1e NB |
565 | /* Add the sections of OBJFILE to the current set of target sections. */ |
566 | ||
567 | void | |
568 | add_target_sections_of_objfile (struct objfile *objfile) | |
569 | { | |
570 | struct target_section_table *table = current_target_sections; | |
571 | struct obj_section *osect; | |
572 | int space; | |
573 | unsigned count = 0; | |
574 | struct target_section *ts; | |
575 | ||
576 | if (objfile == NULL) | |
577 | return; | |
578 | ||
579 | /* Compute the number of sections to add. */ | |
580 | ALL_OBJFILE_OSECTIONS (objfile, osect) | |
581 | { | |
582 | if (bfd_get_section_size (osect->the_bfd_section) == 0) | |
583 | continue; | |
584 | count++; | |
585 | } | |
586 | ||
587 | if (count == 0) | |
588 | return; | |
589 | ||
590 | space = resize_section_table (table, count); | |
591 | ||
592 | ts = table->sections + space; | |
593 | ||
594 | ALL_OBJFILE_OSECTIONS (objfile, osect) | |
595 | { | |
596 | if (bfd_get_section_size (osect->the_bfd_section) == 0) | |
597 | continue; | |
598 | ||
599 | gdb_assert (ts < table->sections + space + count); | |
600 | ||
601 | ts->addr = obj_section_addr (osect); | |
602 | ts->endaddr = obj_section_endaddr (osect); | |
603 | ts->the_bfd_section = osect->the_bfd_section; | |
604 | ts->owner = (void *) objfile; | |
605 | ||
606 | ts++; | |
607 | } | |
608 | } | |
609 | ||
046ac79f JK |
610 | /* Remove all target sections owned by OWNER. |
611 | OWNER must be the same value passed to add_target_sections. */ | |
07b82ea5 PA |
612 | |
613 | void | |
046ac79f | 614 | remove_target_sections (void *owner) |
07b82ea5 PA |
615 | { |
616 | struct target_section *src, *dest; | |
07b82ea5 PA |
617 | struct target_section_table *table = current_target_sections; |
618 | ||
046ac79f JK |
619 | gdb_assert (owner != NULL); |
620 | ||
07b82ea5 PA |
621 | dest = table->sections; |
622 | for (src = table->sections; src < table->sections_end; src++) | |
046ac79f | 623 | if (src->owner != owner) |
07b82ea5 PA |
624 | { |
625 | /* Keep this section. */ | |
626 | if (dest < src) | |
627 | *dest = *src; | |
628 | dest++; | |
629 | } | |
630 | ||
631 | /* If we've dropped any sections, resize the section table. */ | |
632 | if (dest < src) | |
633 | { | |
634 | int old_count; | |
635 | ||
636 | old_count = resize_section_table (table, dest - src); | |
637 | ||
638 | /* If we don't have any more sections to read memory from, | |
639 | remove the file_stratum target from the stack. */ | |
640 | if (old_count + (dest - src) == 0) | |
6c95b8df PA |
641 | { |
642 | struct program_space *pspace; | |
643 | ||
644 | ALL_PSPACES (pspace) | |
645 | if (pspace->target_sections.sections | |
646 | != pspace->target_sections.sections_end) | |
647 | return; | |
648 | ||
649 | unpush_target (&exec_ops); | |
650 | } | |
07b82ea5 PA |
651 | } |
652 | } | |
653 | ||
c906108c | 654 | \f |
348f8c02 | 655 | |
1ca49d37 YQ |
656 | enum target_xfer_status |
657 | exec_read_partial_read_only (gdb_byte *readbuf, ULONGEST offset, | |
658 | ULONGEST len, ULONGEST *xfered_len) | |
659 | { | |
660 | /* It's unduly pedantic to refuse to look at the executable for | |
661 | read-only pieces; so do the equivalent of readonly regions aka | |
662 | QTro packet. */ | |
663 | if (exec_bfd != NULL) | |
664 | { | |
665 | asection *s; | |
666 | bfd_size_type size; | |
667 | bfd_vma vma; | |
668 | ||
669 | for (s = exec_bfd->sections; s; s = s->next) | |
670 | { | |
671 | if ((s->flags & SEC_LOAD) == 0 | |
672 | || (s->flags & SEC_READONLY) == 0) | |
673 | continue; | |
674 | ||
675 | vma = s->vma; | |
676 | size = bfd_get_section_size (s); | |
677 | if (vma <= offset && offset < (vma + size)) | |
678 | { | |
679 | ULONGEST amt; | |
680 | ||
681 | amt = (vma + size) - offset; | |
682 | if (amt > len) | |
683 | amt = len; | |
684 | ||
685 | amt = bfd_get_section_contents (exec_bfd, s, | |
686 | readbuf, offset - vma, amt); | |
687 | ||
688 | if (amt == 0) | |
689 | return TARGET_XFER_EOF; | |
690 | else | |
691 | { | |
692 | *xfered_len = amt; | |
693 | return TARGET_XFER_OK; | |
694 | } | |
695 | } | |
696 | } | |
697 | } | |
698 | ||
699 | /* Indicate failure to find the requested memory block. */ | |
700 | return TARGET_XFER_E_IO; | |
701 | } | |
702 | ||
5a2eb0ef YQ |
703 | /* Appends all read-only memory ranges found in the target section |
704 | table defined by SECTIONS and SECTIONS_END, starting at (and | |
705 | intersected with) MEMADDR for LEN bytes. Returns the augmented | |
706 | VEC. */ | |
707 | ||
708 | static VEC(mem_range_s) * | |
e6ca34fc | 709 | section_table_available_memory (VEC(mem_range_s) *memory, |
424447ee | 710 | CORE_ADDR memaddr, ULONGEST len, |
e6ca34fc PA |
711 | struct target_section *sections, |
712 | struct target_section *sections_end) | |
713 | { | |
714 | struct target_section *p; | |
e6ca34fc PA |
715 | |
716 | for (p = sections; p < sections_end; p++) | |
717 | { | |
2b2848e2 DE |
718 | if ((bfd_get_section_flags (p->the_bfd_section->owner, |
719 | p->the_bfd_section) | |
e6ca34fc PA |
720 | & SEC_READONLY) == 0) |
721 | continue; | |
722 | ||
723 | /* Copy the meta-data, adjusted. */ | |
724 | if (mem_ranges_overlap (p->addr, p->endaddr - p->addr, memaddr, len)) | |
725 | { | |
726 | ULONGEST lo1, hi1, lo2, hi2; | |
727 | struct mem_range *r; | |
728 | ||
729 | lo1 = memaddr; | |
730 | hi1 = memaddr + len; | |
731 | ||
732 | lo2 = p->addr; | |
733 | hi2 = p->endaddr; | |
734 | ||
735 | r = VEC_safe_push (mem_range_s, memory, NULL); | |
736 | ||
325fac50 PA |
737 | r->start = std::max (lo1, lo2); |
738 | r->length = std::min (hi1, hi2) - r->start; | |
e6ca34fc PA |
739 | } |
740 | } | |
741 | ||
742 | return memory; | |
743 | } | |
744 | ||
1ee79381 YQ |
745 | enum target_xfer_status |
746 | section_table_read_available_memory (gdb_byte *readbuf, ULONGEST offset, | |
747 | ULONGEST len, ULONGEST *xfered_len) | |
748 | { | |
749 | VEC(mem_range_s) *available_memory = NULL; | |
750 | struct target_section_table *table; | |
751 | struct cleanup *old_chain; | |
752 | mem_range_s *r; | |
753 | int i; | |
754 | ||
755 | table = target_get_section_table (&exec_ops); | |
756 | available_memory = section_table_available_memory (available_memory, | |
757 | offset, len, | |
758 | table->sections, | |
759 | table->sections_end); | |
760 | ||
761 | old_chain = make_cleanup (VEC_cleanup(mem_range_s), | |
762 | &available_memory); | |
763 | ||
764 | normalize_mem_ranges (available_memory); | |
765 | ||
766 | for (i = 0; | |
767 | VEC_iterate (mem_range_s, available_memory, i, r); | |
768 | i++) | |
769 | { | |
770 | if (mem_ranges_overlap (r->start, r->length, offset, len)) | |
771 | { | |
772 | CORE_ADDR end; | |
773 | enum target_xfer_status status; | |
774 | ||
775 | /* Get the intersection window. */ | |
768adc05 | 776 | end = std::min<CORE_ADDR> (offset + len, r->start + r->length); |
1ee79381 YQ |
777 | |
778 | gdb_assert (end - offset <= len); | |
779 | ||
780 | if (offset >= r->start) | |
781 | status = exec_read_partial_read_only (readbuf, offset, | |
782 | end - offset, | |
783 | xfered_len); | |
784 | else | |
785 | { | |
786 | *xfered_len = r->start - offset; | |
bc113b4e | 787 | status = TARGET_XFER_UNAVAILABLE; |
1ee79381 YQ |
788 | } |
789 | do_cleanups (old_chain); | |
790 | return status; | |
791 | } | |
792 | } | |
793 | do_cleanups (old_chain); | |
794 | ||
795 | *xfered_len = len; | |
bc113b4e | 796 | return TARGET_XFER_UNAVAILABLE; |
1ee79381 YQ |
797 | } |
798 | ||
9b409511 | 799 | enum target_xfer_status |
07b82ea5 | 800 | section_table_xfer_memory_partial (gdb_byte *readbuf, const gdb_byte *writebuf, |
b55e14c7 | 801 | ULONGEST offset, ULONGEST len, |
9b409511 | 802 | ULONGEST *xfered_len, |
07b82ea5 PA |
803 | struct target_section *sections, |
804 | struct target_section *sections_end, | |
805 | const char *section_name) | |
c906108c | 806 | { |
020cc13c | 807 | int res; |
0542c86d | 808 | struct target_section *p; |
07b82ea5 PA |
809 | ULONGEST memaddr = offset; |
810 | ULONGEST memend = memaddr + len; | |
c906108c | 811 | |
b55e14c7 | 812 | if (len == 0) |
3e43a32a MS |
813 | internal_error (__FILE__, __LINE__, |
814 | _("failed internal consistency check")); | |
c906108c | 815 | |
348f8c02 | 816 | for (p = sections; p < sections_end; p++) |
c906108c | 817 | { |
2b2848e2 DE |
818 | struct bfd_section *asect = p->the_bfd_section; |
819 | bfd *abfd = asect->owner; | |
820 | ||
821 | if (section_name && strcmp (section_name, asect->name) != 0) | |
0963b4bd | 822 | continue; /* not the section we need. */ |
c906108c | 823 | if (memaddr >= p->addr) |
3db26b01 JB |
824 | { |
825 | if (memend <= p->endaddr) | |
826 | { | |
827 | /* Entire transfer is within this section. */ | |
07b82ea5 | 828 | if (writebuf) |
2b2848e2 | 829 | res = bfd_set_section_contents (abfd, asect, |
07b82ea5 | 830 | writebuf, memaddr - p->addr, |
85302095 AC |
831 | len); |
832 | else | |
2b2848e2 | 833 | res = bfd_get_section_contents (abfd, asect, |
07b82ea5 | 834 | readbuf, memaddr - p->addr, |
85302095 | 835 | len); |
9b409511 YQ |
836 | |
837 | if (res != 0) | |
838 | { | |
839 | *xfered_len = len; | |
840 | return TARGET_XFER_OK; | |
841 | } | |
842 | else | |
843 | return TARGET_XFER_EOF; | |
3db26b01 JB |
844 | } |
845 | else if (memaddr >= p->endaddr) | |
846 | { | |
847 | /* This section ends before the transfer starts. */ | |
848 | continue; | |
849 | } | |
850 | else | |
851 | { | |
852 | /* This section overlaps the transfer. Just do half. */ | |
853 | len = p->endaddr - memaddr; | |
07b82ea5 | 854 | if (writebuf) |
2b2848e2 | 855 | res = bfd_set_section_contents (abfd, asect, |
07b82ea5 | 856 | writebuf, memaddr - p->addr, |
85302095 AC |
857 | len); |
858 | else | |
2b2848e2 | 859 | res = bfd_get_section_contents (abfd, asect, |
07b82ea5 | 860 | readbuf, memaddr - p->addr, |
85302095 | 861 | len); |
9b409511 YQ |
862 | if (res != 0) |
863 | { | |
864 | *xfered_len = len; | |
865 | return TARGET_XFER_OK; | |
866 | } | |
867 | else | |
868 | return TARGET_XFER_EOF; | |
3db26b01 JB |
869 | } |
870 | } | |
c906108c SS |
871 | } |
872 | ||
9b409511 | 873 | return TARGET_XFER_EOF; /* We can't help. */ |
c906108c | 874 | } |
348f8c02 | 875 | |
70221824 | 876 | static struct target_section_table * |
07b82ea5 | 877 | exec_get_section_table (struct target_ops *ops) |
348f8c02 | 878 | { |
07b82ea5 | 879 | return current_target_sections; |
348f8c02 PA |
880 | } |
881 | ||
9b409511 | 882 | static enum target_xfer_status |
07b82ea5 PA |
883 | exec_xfer_partial (struct target_ops *ops, enum target_object object, |
884 | const char *annex, gdb_byte *readbuf, | |
885 | const gdb_byte *writebuf, | |
9b409511 | 886 | ULONGEST offset, ULONGEST len, ULONGEST *xfered_len) |
348f8c02 | 887 | { |
07b82ea5 PA |
888 | struct target_section_table *table = target_get_section_table (ops); |
889 | ||
890 | if (object == TARGET_OBJECT_MEMORY) | |
891 | return section_table_xfer_memory_partial (readbuf, writebuf, | |
9b409511 | 892 | offset, len, xfered_len, |
07b82ea5 PA |
893 | table->sections, |
894 | table->sections_end, | |
895 | NULL); | |
896 | else | |
2ed4b548 | 897 | return TARGET_XFER_E_IO; |
348f8c02 | 898 | } |
c906108c | 899 | \f |
c5aa993b | 900 | |
c906108c | 901 | void |
07b82ea5 | 902 | print_section_info (struct target_section_table *t, bfd *abfd) |
c906108c | 903 | { |
5af949e3 | 904 | struct gdbarch *gdbarch = gdbarch_from_bfd (abfd); |
0542c86d | 905 | struct target_section *p; |
17a912b6 | 906 | /* FIXME: 16 is not wide enough when gdbarch_addr_bit > 64. */ |
5af949e3 | 907 | int wid = gdbarch_addr_bit (gdbarch) <= 32 ? 8 : 16; |
c906108c | 908 | |
c5aa993b | 909 | printf_filtered ("\t`%s', ", bfd_get_filename (abfd)); |
c906108c | 910 | wrap_here (" "); |
a3f17187 | 911 | printf_filtered (_("file type %s.\n"), bfd_get_target (abfd)); |
c906108c | 912 | if (abfd == exec_bfd) |
51bee8e9 | 913 | { |
3e43a32a MS |
914 | /* gcc-3.4 does not like the initialization in |
915 | <p == t->sections_end>. */ | |
d904de5b | 916 | bfd_vma displacement = 0; |
2f1bdd26 | 917 | bfd_vma entry_point; |
51bee8e9 JK |
918 | |
919 | for (p = t->sections; p < t->sections_end; p++) | |
920 | { | |
2b2848e2 DE |
921 | struct bfd_section *psect = p->the_bfd_section; |
922 | bfd *pbfd = psect->owner; | |
51bee8e9 | 923 | |
2b2848e2 | 924 | if ((bfd_get_section_flags (pbfd, psect) & (SEC_ALLOC | SEC_LOAD)) |
51bee8e9 JK |
925 | != (SEC_ALLOC | SEC_LOAD)) |
926 | continue; | |
927 | ||
2b2848e2 DE |
928 | if (bfd_get_section_vma (pbfd, psect) <= abfd->start_address |
929 | && abfd->start_address < (bfd_get_section_vma (pbfd, psect) | |
930 | + bfd_get_section_size (psect))) | |
51bee8e9 | 931 | { |
2b2848e2 | 932 | displacement = p->addr - bfd_get_section_vma (pbfd, psect); |
51bee8e9 JK |
933 | break; |
934 | } | |
935 | } | |
936 | if (p == t->sections_end) | |
b37520b6 | 937 | warning (_("Cannot find section for the entry point of %s."), |
d904de5b | 938 | bfd_get_filename (abfd)); |
51bee8e9 | 939 | |
2f1bdd26 MGD |
940 | entry_point = gdbarch_addr_bits_remove (gdbarch, |
941 | bfd_get_start_address (abfd) | |
942 | + displacement); | |
51bee8e9 | 943 | printf_filtered (_("\tEntry point: %s\n"), |
2f1bdd26 | 944 | paddress (gdbarch, entry_point)); |
51bee8e9 | 945 | } |
07b82ea5 | 946 | for (p = t->sections; p < t->sections_end; p++) |
c906108c | 947 | { |
2b2848e2 DE |
948 | struct bfd_section *psect = p->the_bfd_section; |
949 | bfd *pbfd = psect->owner; | |
950 | ||
bb599908 PH |
951 | printf_filtered ("\t%s", hex_string_custom (p->addr, wid)); |
952 | printf_filtered (" - %s", hex_string_custom (p->endaddr, wid)); | |
bcf16802 KB |
953 | |
954 | /* FIXME: A format of "08l" is not wide enough for file offsets | |
955 | larger than 4GB. OTOH, making it "016l" isn't desirable either | |
956 | since most output will then be much wider than necessary. It | |
957 | may make sense to test the size of the file and choose the | |
958 | format string accordingly. */ | |
a3f17187 | 959 | /* FIXME: i18n: Need to rewrite this sentence. */ |
c906108c SS |
960 | if (info_verbose) |
961 | printf_filtered (" @ %s", | |
2b2848e2 DE |
962 | hex_string_custom (psect->filepos, 8)); |
963 | printf_filtered (" is %s", bfd_section_name (pbfd, psect)); | |
964 | if (pbfd != abfd) | |
965 | printf_filtered (" in %s", bfd_get_filename (pbfd)); | |
c906108c SS |
966 | printf_filtered ("\n"); |
967 | } | |
968 | } | |
969 | ||
970 | static void | |
fba45db2 | 971 | exec_files_info (struct target_ops *t) |
c906108c | 972 | { |
57008375 JK |
973 | if (exec_bfd) |
974 | print_section_info (current_target_sections, exec_bfd); | |
975 | else | |
976 | puts_filtered (_("\t<no file loaded>\n")); | |
c906108c SS |
977 | } |
978 | ||
979 | static void | |
fba45db2 | 980 | set_section_command (char *args, int from_tty) |
c906108c | 981 | { |
0542c86d | 982 | struct target_section *p; |
c906108c SS |
983 | char *secname; |
984 | unsigned seclen; | |
985 | unsigned long secaddr; | |
986 | char secprint[100]; | |
987 | long offset; | |
07b82ea5 | 988 | struct target_section_table *table; |
c906108c SS |
989 | |
990 | if (args == 0) | |
8a3fe4f8 | 991 | error (_("Must specify section name and its virtual address")); |
c906108c | 992 | |
0963b4bd | 993 | /* Parse out section name. */ |
c5aa993b | 994 | for (secname = args; !isspace (*args); args++); |
c906108c SS |
995 | seclen = args - secname; |
996 | ||
0963b4bd | 997 | /* Parse out new virtual address. */ |
c906108c SS |
998 | secaddr = parse_and_eval_address (args); |
999 | ||
07b82ea5 PA |
1000 | table = current_target_sections; |
1001 | for (p = table->sections; p < table->sections_end; p++) | |
c5aa993b | 1002 | { |
57008375 | 1003 | if (!strncmp (secname, bfd_section_name (p->bfd, |
3e43a32a | 1004 | p->the_bfd_section), seclen) |
57008375 | 1005 | && bfd_section_name (p->bfd, p->the_bfd_section)[seclen] == '\0') |
c5aa993b JM |
1006 | { |
1007 | offset = secaddr - p->addr; | |
1008 | p->addr += offset; | |
1009 | p->endaddr += offset; | |
1010 | if (from_tty) | |
1011 | exec_files_info (&exec_ops); | |
1012 | return; | |
1013 | } | |
c906108c | 1014 | } |
c906108c SS |
1015 | if (seclen >= sizeof (secprint)) |
1016 | seclen = sizeof (secprint) - 1; | |
1017 | strncpy (secprint, secname, seclen); | |
1018 | secprint[seclen] = '\0'; | |
8a3fe4f8 | 1019 | error (_("Section %s not found"), secprint); |
c906108c SS |
1020 | } |
1021 | ||
30510692 DJ |
1022 | /* If we can find a section in FILENAME with BFD index INDEX, adjust |
1023 | it to ADDRESS. */ | |
c1bd25fd DJ |
1024 | |
1025 | void | |
1026 | exec_set_section_address (const char *filename, int index, CORE_ADDR address) | |
1027 | { | |
0542c86d | 1028 | struct target_section *p; |
07b82ea5 | 1029 | struct target_section_table *table; |
c1bd25fd | 1030 | |
07b82ea5 PA |
1031 | table = current_target_sections; |
1032 | for (p = table->sections; p < table->sections_end; p++) | |
c1bd25fd | 1033 | { |
2b2848e2 | 1034 | if (filename_cmp (filename, p->the_bfd_section->owner->filename) == 0 |
30510692 | 1035 | && index == p->the_bfd_section->index) |
c1bd25fd | 1036 | { |
30510692 | 1037 | p->endaddr += address - p->addr; |
c1bd25fd | 1038 | p->addr = address; |
c1bd25fd DJ |
1039 | } |
1040 | } | |
1041 | } | |
1042 | ||
c906108c SS |
1043 | /* If mourn is being called in all the right places, this could be say |
1044 | `gdb internal error' (since generic_mourn calls | |
1045 | breakpoint_init_inferior). */ | |
1046 | ||
1047 | static int | |
3db08215 MM |
1048 | ignore (struct target_ops *ops, struct gdbarch *gdbarch, |
1049 | struct bp_target_info *bp_tgt) | |
c906108c SS |
1050 | { |
1051 | return 0; | |
1052 | } | |
1053 | ||
73971819 PA |
1054 | /* Implement the to_remove_breakpoint method. */ |
1055 | ||
1056 | static int | |
1057 | exec_remove_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, | |
1058 | struct bp_target_info *bp_tgt, | |
1059 | enum remove_bp_reason reason) | |
1060 | { | |
1061 | return 0; | |
1062 | } | |
1063 | ||
c35b1492 PA |
1064 | static int |
1065 | exec_has_memory (struct target_ops *ops) | |
1066 | { | |
1067 | /* We can provide memory if we have any file/target sections to read | |
1068 | from. */ | |
1069 | return (current_target_sections->sections | |
1070 | != current_target_sections->sections_end); | |
1071 | } | |
1072 | ||
83814951 TT |
1073 | static char * |
1074 | exec_make_note_section (struct target_ops *self, bfd *obfd, int *note_size) | |
1075 | { | |
1076 | error (_("Can't create a corefile")); | |
1077 | } | |
be4d1333 | 1078 | |
c906108c SS |
1079 | /* Fill in the exec file target vector. Very few entries need to be |
1080 | defined. */ | |
1081 | ||
be4d1333 | 1082 | static void |
fba45db2 | 1083 | init_exec_ops (void) |
c906108c SS |
1084 | { |
1085 | exec_ops.to_shortname = "exec"; | |
1086 | exec_ops.to_longname = "Local exec file"; | |
1087 | exec_ops.to_doc = "Use an executable file as a target.\n\ | |
1088 | Specify the filename of the executable file."; | |
1adeb98a | 1089 | exec_ops.to_open = exec_open; |
6c95b8df | 1090 | exec_ops.to_close = exec_close_1; |
07b82ea5 PA |
1091 | exec_ops.to_xfer_partial = exec_xfer_partial; |
1092 | exec_ops.to_get_section_table = exec_get_section_table; | |
c906108c SS |
1093 | exec_ops.to_files_info = exec_files_info; |
1094 | exec_ops.to_insert_breakpoint = ignore; | |
73971819 | 1095 | exec_ops.to_remove_breakpoint = exec_remove_breakpoint; |
c906108c | 1096 | exec_ops.to_stratum = file_stratum; |
c35b1492 | 1097 | exec_ops.to_has_memory = exec_has_memory; |
be4d1333 | 1098 | exec_ops.to_make_corefile_notes = exec_make_note_section; |
b427c1bc | 1099 | exec_ops.to_find_memory_regions = objfile_find_memory_regions; |
c5aa993b | 1100 | exec_ops.to_magic = OPS_MAGIC; |
c906108c SS |
1101 | } |
1102 | ||
1103 | void | |
fba45db2 | 1104 | _initialize_exec (void) |
c906108c SS |
1105 | { |
1106 | struct cmd_list_element *c; | |
1107 | ||
1108 | init_exec_ops (); | |
1109 | ||
1110 | if (!dbx_commands) | |
1111 | { | |
1a966eab AC |
1112 | c = add_cmd ("file", class_files, file_command, _("\ |
1113 | Use FILE as program to be debugged.\n\ | |
c906108c SS |
1114 | It is read for its symbols, for getting the contents of pure memory,\n\ |
1115 | and it is the program executed when you use the `run' command.\n\ | |
1116 | If FILE cannot be found as specified, your execution directory path\n\ | |
1117 | ($PATH) is searched for a command of that name.\n\ | |
1a966eab | 1118 | No arg means to have no executable file and no symbols."), &cmdlist); |
5ba2abeb | 1119 | set_cmd_completer (c, filename_completer); |
c906108c SS |
1120 | } |
1121 | ||
1a966eab AC |
1122 | c = add_cmd ("exec-file", class_files, exec_file_command, _("\ |
1123 | Use FILE as program for getting contents of pure memory.\n\ | |
c906108c SS |
1124 | If FILE cannot be found as specified, your execution directory path\n\ |
1125 | is searched for a command of that name.\n\ | |
1a966eab | 1126 | No arg means have no executable file."), &cmdlist); |
5ba2abeb | 1127 | set_cmd_completer (c, filename_completer); |
c906108c | 1128 | |
1bedd215 AC |
1129 | add_com ("section", class_files, set_section_command, _("\ |
1130 | Change the base address of section SECTION of the exec file to ADDR.\n\ | |
c906108c SS |
1131 | This can be used if the exec file does not contain section addresses,\n\ |
1132 | (such as in the a.out format), or when the addresses specified in the\n\ | |
1133 | file itself are wrong. Each section must be changed separately. The\n\ | |
1bedd215 | 1134 | ``info files'' command lists all the sections and their addresses.")); |
c906108c | 1135 | |
5bf193a2 AC |
1136 | add_setshow_boolean_cmd ("write", class_support, &write_files, _("\ |
1137 | Set writing into executable and core files."), _("\ | |
1138 | Show writing into executable and core files."), NULL, | |
1139 | NULL, | |
920d2a44 | 1140 | show_write_files, |
5bf193a2 | 1141 | &setlist, &showlist); |
c5aa993b | 1142 | |
9852c492 | 1143 | add_target_with_completer (&exec_ops, filename_completer); |
c906108c | 1144 | } |