Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Core dump and executable file functions above target vector, for GDB. |
1bac305b | 2 | |
ecd75fc8 | 3 | Copyright (C) 1986-2014 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" | |
0e9f083f | 21 | #include <string.h> |
c906108c SS |
22 | #include <errno.h> |
23 | #include <signal.h> | |
24 | #include <fcntl.h> | |
c906108c SS |
25 | #include "inferior.h" |
26 | #include "symtab.h" | |
27 | #include "command.h" | |
28 | #include "gdbcmd.h" | |
29 | #include "bfd.h" | |
30 | #include "target.h" | |
31 | #include "gdbcore.h" | |
32 | #include "dis-asm.h" | |
53ce3c39 | 33 | #include <sys/stat.h> |
d75b5104 | 34 | #include "completer.h" |
60250e8b | 35 | #include "exceptions.h" |
972daa01 | 36 | #include "observer.h" |
44478ab3 | 37 | #include "cli/cli-utils.h" |
c906108c | 38 | |
c906108c SS |
39 | /* Local function declarations. */ |
40 | ||
a14ed312 KB |
41 | extern void _initialize_core (void); |
42 | static void call_extra_exec_file_hooks (char *filename); | |
c906108c | 43 | |
9a4105ab AC |
44 | /* You can have any number of hooks for `exec_file_command' command to |
45 | call. If there's only one hook, it is set in exec_file_display | |
46 | hook. If there are two or more hooks, they are set in | |
47 | exec_file_extra_hooks[], and deprecated_exec_file_display_hook is | |
48 | set to a function that calls all of them. This extra complexity is | |
49 | needed to preserve compatibility with old code that assumed that | |
50 | only one hook could be set, and which called | |
51 | deprecated_exec_file_display_hook directly. */ | |
c906108c | 52 | |
507f3c78 | 53 | typedef void (*hook_type) (char *); |
c906108c | 54 | |
aff410f1 MS |
55 | hook_type deprecated_exec_file_display_hook; /* The original hook. */ |
56 | static hook_type *exec_file_extra_hooks; /* Array of additional | |
57 | hooks. */ | |
58 | static int exec_file_hook_count = 0; /* Size of array. */ | |
c906108c SS |
59 | |
60 | /* Binary file diddling handle for the core file. */ | |
61 | ||
62 | bfd *core_bfd = NULL; | |
c0edd9ed | 63 | |
06b9f45f | 64 | /* corelow.c target. It is never NULL after GDB initialization. */ |
c0edd9ed JK |
65 | |
66 | struct target_ops *core_target; | |
c906108c | 67 | \f |
c5aa993b | 68 | |
c906108c SS |
69 | /* Backward compatability with old way of specifying core files. */ |
70 | ||
71 | void | |
fba45db2 | 72 | core_file_command (char *filename, int from_tty) |
c906108c | 73 | { |
aff410f1 | 74 | dont_repeat (); /* Either way, seems bogus. */ |
c906108c | 75 | |
06b9f45f | 76 | gdb_assert (core_target != NULL); |
46c6cdcf C |
77 | |
78 | if (!filename) | |
c0edd9ed | 79 | (core_target->to_detach) (core_target, filename, from_tty); |
46c6cdcf | 80 | else |
c0edd9ed | 81 | (core_target->to_open) (filename, from_tty); |
c906108c | 82 | } |
c906108c | 83 | \f |
c5aa993b | 84 | |
de6854b5 MS |
85 | /* If there are two or more functions that wish to hook into |
86 | exec_file_command, this function will call all of the hook | |
87 | functions. */ | |
c906108c SS |
88 | |
89 | static void | |
fba45db2 | 90 | call_extra_exec_file_hooks (char *filename) |
c906108c SS |
91 | { |
92 | int i; | |
93 | ||
94 | for (i = 0; i < exec_file_hook_count; i++) | |
c5aa993b | 95 | (*exec_file_extra_hooks[i]) (filename); |
c906108c SS |
96 | } |
97 | ||
98 | /* Call this to specify the hook for exec_file_command to call back. | |
99 | This is called from the x-window display code. */ | |
100 | ||
101 | void | |
dbb41be1 | 102 | specify_exec_file_hook (void (*hook) (char *)) |
c906108c SS |
103 | { |
104 | hook_type *new_array; | |
105 | ||
9a4105ab | 106 | if (deprecated_exec_file_display_hook != NULL) |
c906108c SS |
107 | { |
108 | /* There's already a hook installed. Arrange to have both it | |
aff410f1 | 109 | and the subsequent hooks called. */ |
c906108c SS |
110 | if (exec_file_hook_count == 0) |
111 | { | |
aff410f1 MS |
112 | /* If this is the first extra hook, initialize the hook |
113 | array. */ | |
114 | exec_file_extra_hooks = (hook_type *) | |
115 | xmalloc (sizeof (hook_type)); | |
9a4105ab AC |
116 | exec_file_extra_hooks[0] = deprecated_exec_file_display_hook; |
117 | deprecated_exec_file_display_hook = call_extra_exec_file_hooks; | |
c906108c SS |
118 | exec_file_hook_count = 1; |
119 | } | |
120 | ||
121 | /* Grow the hook array by one and add the new hook to the end. | |
122 | Yes, it's inefficient to grow it by one each time but since | |
123 | this is hardly ever called it's not a big deal. */ | |
124 | exec_file_hook_count++; | |
aff410f1 MS |
125 | new_array = (hook_type *) |
126 | xrealloc (exec_file_extra_hooks, | |
127 | exec_file_hook_count * sizeof (hook_type)); | |
c906108c SS |
128 | exec_file_extra_hooks = new_array; |
129 | exec_file_extra_hooks[exec_file_hook_count - 1] = hook; | |
130 | } | |
131 | else | |
9a4105ab | 132 | deprecated_exec_file_display_hook = hook; |
c906108c SS |
133 | } |
134 | ||
c906108c | 135 | void |
fba45db2 | 136 | reopen_exec_file (void) |
c906108c | 137 | { |
c906108c SS |
138 | char *filename; |
139 | int res; | |
140 | struct stat st; | |
f7545552 | 141 | struct cleanup *cleanups; |
c906108c | 142 | |
aff410f1 | 143 | /* Don't do anything if there isn't an exec file. */ |
4c42eaff | 144 | if (exec_bfd == NULL) |
c906108c | 145 | return; |
c5aa993b | 146 | |
aff410f1 | 147 | /* If the timestamp of the exec file has changed, reopen it. */ |
c2d11a7d | 148 | filename = xstrdup (bfd_get_filename (exec_bfd)); |
f7545552 | 149 | cleanups = make_cleanup (xfree, filename); |
c906108c SS |
150 | res = stat (filename, &st); |
151 | ||
c04ea773 | 152 | if (exec_bfd_mtime && exec_bfd_mtime != st.st_mtime) |
4c42eaff | 153 | exec_file_attach (filename, 0); |
939643d7 DJ |
154 | else |
155 | /* If we accessed the file since last opening it, close it now; | |
156 | this stops GDB from holding the executable open after it | |
157 | exits. */ | |
158 | bfd_cache_close_all (); | |
f7545552 TT |
159 | |
160 | do_cleanups (cleanups); | |
c906108c SS |
161 | } |
162 | \f | |
163 | /* If we have both a core file and an exec file, | |
164 | print a warning if they don't go together. */ | |
165 | ||
166 | void | |
fba45db2 | 167 | validate_files (void) |
c906108c SS |
168 | { |
169 | if (exec_bfd && core_bfd) | |
170 | { | |
171 | if (!core_file_matches_executable_p (core_bfd, exec_bfd)) | |
8a3fe4f8 | 172 | warning (_("core file may not match specified executable file.")); |
c5aa993b | 173 | else if (bfd_get_mtime (exec_bfd) > bfd_get_mtime (core_bfd)) |
8a3fe4f8 | 174 | warning (_("exec file is newer than core file.")); |
c906108c SS |
175 | } |
176 | } | |
177 | ||
178 | /* Return the name of the executable file as a string. | |
179 | ERR nonzero means get error if there is none specified; | |
180 | otherwise return 0 in that case. */ | |
181 | ||
182 | char * | |
fba45db2 | 183 | get_exec_file (int err) |
c906108c | 184 | { |
1f0c4988 JK |
185 | if (exec_filename) |
186 | return exec_filename; | |
c5aa993b JM |
187 | if (!err) |
188 | return NULL; | |
c906108c | 189 | |
8a3fe4f8 AC |
190 | error (_("No executable file specified.\n\ |
191 | Use the \"file\" or \"exec-file\" command.")); | |
c906108c SS |
192 | return NULL; |
193 | } | |
c906108c | 194 | \f |
c5aa993b | 195 | |
578d3588 | 196 | char * |
9b409511 | 197 | memory_error_message (enum target_xfer_status err, |
578d3588 | 198 | struct gdbarch *gdbarch, CORE_ADDR memaddr) |
6be7b56e PA |
199 | { |
200 | switch (err) | |
201 | { | |
202 | case TARGET_XFER_E_IO: | |
203 | /* Actually, address between memaddr and memaddr + len was out of | |
204 | bounds. */ | |
578d3588 PA |
205 | return xstrprintf (_("Cannot access memory at address %s"), |
206 | paddress (gdbarch, memaddr)); | |
6be7b56e | 207 | case TARGET_XFER_E_UNAVAILABLE: |
578d3588 PA |
208 | return xstrprintf (_("Memory at address %s unavailable."), |
209 | paddress (gdbarch, memaddr)); | |
6be7b56e PA |
210 | default: |
211 | internal_error (__FILE__, __LINE__, | |
9b409511 YQ |
212 | "unhandled target_xfer_status: %s (%s)", |
213 | target_xfer_status_to_string (err), | |
6be7b56e PA |
214 | plongest (err)); |
215 | } | |
216 | } | |
217 | ||
578d3588 | 218 | /* Report a memory error by throwing a suitable exception. */ |
c906108c SS |
219 | |
220 | void | |
9b409511 | 221 | memory_error (enum target_xfer_status err, CORE_ADDR memaddr) |
c906108c | 222 | { |
578d3588 | 223 | char *str; |
8635b3bf | 224 | enum errors exception = GDB_NO_ERROR; |
578d3588 PA |
225 | |
226 | /* Build error string. */ | |
227 | str = memory_error_message (err, target_gdbarch (), memaddr); | |
228 | make_cleanup (xfree, str); | |
229 | ||
230 | /* Choose the right error to throw. */ | |
231 | switch (err) | |
232 | { | |
233 | case TARGET_XFER_E_IO: | |
8635b3bf | 234 | exception = MEMORY_ERROR; |
578d3588 PA |
235 | break; |
236 | case TARGET_XFER_E_UNAVAILABLE: | |
8635b3bf | 237 | exception = NOT_AVAILABLE_ERROR; |
578d3588 PA |
238 | break; |
239 | } | |
240 | ||
241 | /* Throw it. */ | |
8635b3bf | 242 | throw_error (exception, ("%s"), str); |
c906108c SS |
243 | } |
244 | ||
245 | /* Same as target_read_memory, but report an error if can't read. */ | |
4e5d721f | 246 | |
c906108c | 247 | void |
45aa4659 | 248 | read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
c906108c | 249 | { |
9b409511 | 250 | ULONGEST xfered = 0; |
c5504eaf | 251 | |
6be7b56e PA |
252 | while (xfered < len) |
253 | { | |
9b409511 YQ |
254 | enum target_xfer_status status; |
255 | ULONGEST xfered_len; | |
6be7b56e | 256 | |
9b409511 YQ |
257 | status = target_xfer_partial (current_target.beneath, |
258 | TARGET_OBJECT_MEMORY, NULL, | |
259 | myaddr + xfered, NULL, | |
260 | memaddr + xfered, len - xfered, | |
261 | &xfered_len); | |
262 | ||
263 | if (status == TARGET_XFER_EOF) | |
578d3588 | 264 | memory_error (TARGET_XFER_E_IO, memaddr + xfered); |
9b409511 YQ |
265 | |
266 | if (TARGET_XFER_STATUS_ERROR_P (status)) | |
267 | memory_error (status, memaddr + xfered); | |
268 | ||
269 | gdb_assert (status == TARGET_XFER_OK); | |
270 | xfered += xfered_len; | |
6be7b56e PA |
271 | QUIT; |
272 | } | |
c906108c SS |
273 | } |
274 | ||
4e5d721f DE |
275 | /* Same as target_read_stack, but report an error if can't read. */ |
276 | ||
277 | void | |
45aa4659 | 278 | read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
4e5d721f DE |
279 | { |
280 | int status; | |
c5504eaf | 281 | |
4e5d721f DE |
282 | status = target_read_stack (memaddr, myaddr, len); |
283 | if (status != 0) | |
284 | memory_error (status, memaddr); | |
285 | } | |
286 | ||
0865b04a YQ |
287 | /* Same as target_read_code, but report an error if can't read. */ |
288 | ||
289 | void | |
290 | read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
291 | { | |
292 | int status; | |
293 | ||
294 | status = target_read_code (memaddr, myaddr, len); | |
295 | if (status != 0) | |
296 | memory_error (status, memaddr); | |
297 | } | |
298 | ||
ee8ff470 KB |
299 | /* Argument / return result struct for use with |
300 | do_captured_read_memory_integer(). MEMADDR and LEN are filled in | |
301 | by gdb_read_memory_integer(). RESULT is the contents that were | |
302 | successfully read from MEMADDR of length LEN. */ | |
c906108c | 303 | |
16a0f3e7 EZ |
304 | struct captured_read_memory_integer_arguments |
305 | { | |
306 | CORE_ADDR memaddr; | |
307 | int len; | |
e17a4113 | 308 | enum bfd_endian byte_order; |
16a0f3e7 EZ |
309 | LONGEST result; |
310 | }; | |
311 | ||
ee8ff470 | 312 | /* Helper function for gdb_read_memory_integer(). DATA must be a |
aff410f1 | 313 | pointer to a captured_read_memory_integer_arguments struct. |
ee8ff470 KB |
314 | Return 1 if successful. Note that the catch_errors() interface |
315 | will return 0 if an error occurred while reading memory. This | |
316 | choice of return code is so that we can distinguish between | |
317 | success and failure. */ | |
318 | ||
16a0f3e7 EZ |
319 | static int |
320 | do_captured_read_memory_integer (void *data) | |
321 | { | |
aff410f1 MS |
322 | struct captured_read_memory_integer_arguments *args |
323 | = (struct captured_read_memory_integer_arguments*) data; | |
16a0f3e7 EZ |
324 | CORE_ADDR memaddr = args->memaddr; |
325 | int len = args->len; | |
e17a4113 | 326 | enum bfd_endian byte_order = args->byte_order; |
16a0f3e7 | 327 | |
e17a4113 | 328 | args->result = read_memory_integer (memaddr, len, byte_order); |
16a0f3e7 | 329 | |
ee8ff470 | 330 | return 1; |
16a0f3e7 EZ |
331 | } |
332 | ||
ee8ff470 KB |
333 | /* Read memory at MEMADDR of length LEN and put the contents in |
334 | RETURN_VALUE. Return 0 if MEMADDR couldn't be read and non-zero | |
335 | if successful. */ | |
336 | ||
16a0f3e7 | 337 | int |
c5504eaf MS |
338 | safe_read_memory_integer (CORE_ADDR memaddr, int len, |
339 | enum bfd_endian byte_order, | |
e17a4113 | 340 | LONGEST *return_value) |
16a0f3e7 EZ |
341 | { |
342 | int status; | |
343 | struct captured_read_memory_integer_arguments args; | |
c5504eaf | 344 | |
16a0f3e7 EZ |
345 | args.memaddr = memaddr; |
346 | args.len = len; | |
e17a4113 | 347 | args.byte_order = byte_order; |
16a0f3e7 EZ |
348 | |
349 | status = catch_errors (do_captured_read_memory_integer, &args, | |
aff410f1 | 350 | "", RETURN_MASK_ALL); |
ee8ff470 | 351 | if (status) |
16a0f3e7 EZ |
352 | *return_value = args.result; |
353 | ||
354 | return status; | |
355 | } | |
356 | ||
c906108c | 357 | LONGEST |
aff410f1 MS |
358 | read_memory_integer (CORE_ADDR memaddr, int len, |
359 | enum bfd_endian byte_order) | |
c906108c | 360 | { |
dfb65433 | 361 | gdb_byte buf[sizeof (LONGEST)]; |
c906108c SS |
362 | |
363 | read_memory (memaddr, buf, len); | |
e17a4113 | 364 | return extract_signed_integer (buf, len, byte_order); |
c906108c SS |
365 | } |
366 | ||
367 | ULONGEST | |
aff410f1 MS |
368 | read_memory_unsigned_integer (CORE_ADDR memaddr, int len, |
369 | enum bfd_endian byte_order) | |
c906108c | 370 | { |
dfb65433 | 371 | gdb_byte buf[sizeof (ULONGEST)]; |
c906108c SS |
372 | |
373 | read_memory (memaddr, buf, len); | |
e17a4113 | 374 | return extract_unsigned_integer (buf, len, byte_order); |
c906108c SS |
375 | } |
376 | ||
0865b04a YQ |
377 | LONGEST |
378 | read_code_integer (CORE_ADDR memaddr, int len, | |
379 | enum bfd_endian byte_order) | |
380 | { | |
381 | gdb_byte buf[sizeof (LONGEST)]; | |
382 | ||
383 | read_code (memaddr, buf, len); | |
384 | return extract_signed_integer (buf, len, byte_order); | |
385 | } | |
386 | ||
387 | ULONGEST | |
388 | read_code_unsigned_integer (CORE_ADDR memaddr, int len, | |
389 | enum bfd_endian byte_order) | |
390 | { | |
391 | gdb_byte buf[sizeof (ULONGEST)]; | |
392 | ||
393 | read_code (memaddr, buf, len); | |
394 | return extract_unsigned_integer (buf, len, byte_order); | |
395 | } | |
396 | ||
c906108c | 397 | void |
fba45db2 | 398 | read_memory_string (CORE_ADDR memaddr, char *buffer, int max_len) |
c906108c | 399 | { |
52f0bd74 AC |
400 | char *cp; |
401 | int i; | |
c906108c SS |
402 | int cnt; |
403 | ||
404 | cp = buffer; | |
405 | while (1) | |
406 | { | |
407 | if (cp - buffer >= max_len) | |
c5aa993b JM |
408 | { |
409 | buffer[max_len - 1] = '\0'; | |
410 | break; | |
411 | } | |
c906108c SS |
412 | cnt = max_len - (cp - buffer); |
413 | if (cnt > 8) | |
414 | cnt = 8; | |
c8af03a2 | 415 | read_memory (memaddr + (int) (cp - buffer), (gdb_byte *) cp, cnt); |
c906108c | 416 | for (i = 0; i < cnt && *cp; i++, cp++) |
c5aa993b | 417 | ; /* null body */ |
c906108c SS |
418 | |
419 | if (i < cnt && !*cp) | |
c5aa993b | 420 | break; |
c906108c SS |
421 | } |
422 | } | |
c26e4683 | 423 | |
0d540cdf KD |
424 | CORE_ADDR |
425 | read_memory_typed_address (CORE_ADDR addr, struct type *type) | |
426 | { | |
dfb65433 | 427 | gdb_byte *buf = alloca (TYPE_LENGTH (type)); |
c5504eaf | 428 | |
0d540cdf KD |
429 | read_memory (addr, buf, TYPE_LENGTH (type)); |
430 | return extract_typed_address (buf, type); | |
431 | } | |
432 | ||
aff410f1 MS |
433 | /* Same as target_write_memory, but report an error if can't |
434 | write. */ | |
c26e4683 | 435 | void |
aff410f1 | 436 | write_memory (CORE_ADDR memaddr, |
45aa4659 | 437 | const bfd_byte *myaddr, ssize_t len) |
c26e4683 JB |
438 | { |
439 | int status; | |
c5504eaf | 440 | |
00630ca8 | 441 | status = target_write_memory (memaddr, myaddr, len); |
c26e4683 JB |
442 | if (status != 0) |
443 | memory_error (status, memaddr); | |
444 | } | |
445 | ||
972daa01 YQ |
446 | /* Same as write_memory, but notify 'memory_changed' observers. */ |
447 | ||
448 | void | |
449 | write_memory_with_notification (CORE_ADDR memaddr, const bfd_byte *myaddr, | |
450 | ssize_t len) | |
451 | { | |
452 | write_memory (memaddr, myaddr, len); | |
8de0566d | 453 | observer_notify_memory_changed (current_inferior (), memaddr, len, myaddr); |
972daa01 YQ |
454 | } |
455 | ||
aff410f1 MS |
456 | /* Store VALUE at ADDR in the inferior as a LEN-byte unsigned |
457 | integer. */ | |
c26e4683 | 458 | void |
c5504eaf MS |
459 | write_memory_unsigned_integer (CORE_ADDR addr, int len, |
460 | enum bfd_endian byte_order, | |
e17a4113 | 461 | ULONGEST value) |
c26e4683 | 462 | { |
dfb65433 | 463 | gdb_byte *buf = alloca (len); |
c5504eaf | 464 | |
e17a4113 | 465 | store_unsigned_integer (buf, len, byte_order, value); |
c26e4683 JB |
466 | write_memory (addr, buf, len); |
467 | } | |
468 | ||
aff410f1 MS |
469 | /* Store VALUE at ADDR in the inferior as a LEN-byte signed |
470 | integer. */ | |
c26e4683 | 471 | void |
c5504eaf MS |
472 | write_memory_signed_integer (CORE_ADDR addr, int len, |
473 | enum bfd_endian byte_order, | |
e17a4113 | 474 | LONGEST value) |
c26e4683 | 475 | { |
dfb65433 | 476 | gdb_byte *buf = alloca (len); |
c5504eaf | 477 | |
e17a4113 | 478 | store_signed_integer (buf, len, byte_order, value); |
c26e4683 JB |
479 | write_memory (addr, buf, len); |
480 | } | |
c906108c SS |
481 | \f |
482 | /* The current default bfd target. Points to storage allocated for | |
483 | gnutarget_string. */ | |
484 | char *gnutarget; | |
485 | ||
486 | /* Same thing, except it is "auto" not NULL for the default case. */ | |
487 | static char *gnutarget_string; | |
920d2a44 AC |
488 | static void |
489 | show_gnutarget_string (struct ui_file *file, int from_tty, | |
aff410f1 MS |
490 | struct cmd_list_element *c, |
491 | const char *value) | |
920d2a44 | 492 | { |
aff410f1 MS |
493 | fprintf_filtered (file, |
494 | _("The current BFD target is \"%s\".\n"), value); | |
920d2a44 | 495 | } |
c906108c | 496 | |
aff410f1 MS |
497 | static void set_gnutarget_command (char *, int, |
498 | struct cmd_list_element *); | |
c906108c SS |
499 | |
500 | static void | |
aff410f1 MS |
501 | set_gnutarget_command (char *ignore, int from_tty, |
502 | struct cmd_list_element *c) | |
c906108c | 503 | { |
44478ab3 TT |
504 | char *gend = gnutarget_string + strlen (gnutarget_string); |
505 | ||
506 | gend = remove_trailing_whitespace (gnutarget_string, gend); | |
507 | *gend = '\0'; | |
508 | ||
bde58177 | 509 | if (strcmp (gnutarget_string, "auto") == 0) |
c906108c SS |
510 | gnutarget = NULL; |
511 | else | |
512 | gnutarget = gnutarget_string; | |
513 | } | |
514 | ||
44478ab3 TT |
515 | /* A completion function for "set gnutarget". */ |
516 | ||
517 | static VEC (char_ptr) * | |
6f937416 PA |
518 | complete_set_gnutarget (struct cmd_list_element *cmd, |
519 | const char *text, const char *word) | |
44478ab3 TT |
520 | { |
521 | static const char **bfd_targets; | |
522 | ||
523 | if (bfd_targets == NULL) | |
524 | { | |
525 | int last; | |
526 | ||
527 | bfd_targets = bfd_target_list (); | |
528 | for (last = 0; bfd_targets[last] != NULL; ++last) | |
529 | ; | |
530 | ||
531 | bfd_targets = xrealloc (bfd_targets, (last + 2) * sizeof (const char **)); | |
532 | bfd_targets[last] = "auto"; | |
533 | bfd_targets[last + 1] = NULL; | |
534 | } | |
535 | ||
536 | return complete_on_enum (bfd_targets, text, word); | |
537 | } | |
538 | ||
c906108c SS |
539 | /* Set the gnutarget. */ |
540 | void | |
fba45db2 | 541 | set_gnutarget (char *newtarget) |
c906108c SS |
542 | { |
543 | if (gnutarget_string != NULL) | |
b8c9b27d | 544 | xfree (gnutarget_string); |
1b36a34b | 545 | gnutarget_string = xstrdup (newtarget); |
c906108c SS |
546 | set_gnutarget_command (NULL, 0, NULL); |
547 | } | |
548 | ||
549 | void | |
fba45db2 | 550 | _initialize_core (void) |
c906108c SS |
551 | { |
552 | struct cmd_list_element *c; | |
c5504eaf | 553 | |
1a966eab AC |
554 | c = add_cmd ("core-file", class_files, core_file_command, _("\ |
555 | Use FILE as core dump for examining memory and registers.\n\ | |
c906108c | 556 | No arg means have no core file. This command has been superseded by the\n\ |
1a966eab | 557 | `target core' and `detach' commands."), &cmdlist); |
5ba2abeb | 558 | set_cmd_completer (c, filename_completer); |
c906108c | 559 | |
26c41df3 | 560 | |
44478ab3 TT |
561 | c = add_setshow_string_noescape_cmd ("gnutarget", class_files, |
562 | &gnutarget_string, _("\ | |
26c41df3 AC |
563 | Set the current BFD target."), _("\ |
564 | Show the current BFD target."), _("\ | |
565 | Use `set gnutarget auto' to specify automatic detection."), | |
44478ab3 TT |
566 | set_gnutarget_command, |
567 | show_gnutarget_string, | |
568 | &setlist, &showlist); | |
569 | set_cmd_completer (c, complete_set_gnutarget); | |
570 | ||
7e20dfcd | 571 | add_alias_cmd ("g", "gnutarget", class_files, 1, &setlist); |
c906108c SS |
572 | |
573 | if (getenv ("GNUTARGET")) | |
574 | set_gnutarget (getenv ("GNUTARGET")); | |
575 | else | |
576 | set_gnutarget ("auto"); | |
577 | } |