Commit | Line | Data |
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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" | |
c906108c SS |
21 | #include <signal.h> |
22 | #include <fcntl.h> | |
c906108c SS |
23 | #include "inferior.h" |
24 | #include "symtab.h" | |
25 | #include "command.h" | |
26 | #include "gdbcmd.h" | |
27 | #include "bfd.h" | |
28 | #include "target.h" | |
29 | #include "gdbcore.h" | |
30 | #include "dis-asm.h" | |
53ce3c39 | 31 | #include <sys/stat.h> |
d75b5104 | 32 | #include "completer.h" |
60250e8b | 33 | #include "exceptions.h" |
972daa01 | 34 | #include "observer.h" |
44478ab3 | 35 | #include "cli/cli-utils.h" |
c906108c | 36 | |
c906108c SS |
37 | /* Local function declarations. */ |
38 | ||
a14ed312 | 39 | extern void _initialize_core (void); |
c906108c | 40 | |
9a4105ab AC |
41 | /* You can have any number of hooks for `exec_file_command' command to |
42 | call. If there's only one hook, it is set in exec_file_display | |
43 | hook. If there are two or more hooks, they are set in | |
44 | exec_file_extra_hooks[], and deprecated_exec_file_display_hook is | |
45 | set to a function that calls all of them. This extra complexity is | |
46 | needed to preserve compatibility with old code that assumed that | |
47 | only one hook could be set, and which called | |
48 | deprecated_exec_file_display_hook directly. */ | |
c906108c | 49 | |
5f08566b | 50 | typedef void (*hook_type) (const char *); |
c906108c | 51 | |
aff410f1 MS |
52 | hook_type deprecated_exec_file_display_hook; /* The original hook. */ |
53 | static hook_type *exec_file_extra_hooks; /* Array of additional | |
54 | hooks. */ | |
55 | static int exec_file_hook_count = 0; /* Size of array. */ | |
c906108c SS |
56 | |
57 | /* Binary file diddling handle for the core file. */ | |
58 | ||
59 | bfd *core_bfd = NULL; | |
c0edd9ed | 60 | |
06b9f45f | 61 | /* corelow.c target. It is never NULL after GDB initialization. */ |
c0edd9ed JK |
62 | |
63 | struct target_ops *core_target; | |
c906108c | 64 | \f |
c5aa993b | 65 | |
c906108c SS |
66 | /* Backward compatability with old way of specifying core files. */ |
67 | ||
68 | void | |
fba45db2 | 69 | core_file_command (char *filename, int from_tty) |
c906108c | 70 | { |
aff410f1 | 71 | dont_repeat (); /* Either way, seems bogus. */ |
c906108c | 72 | |
06b9f45f | 73 | gdb_assert (core_target != NULL); |
46c6cdcf C |
74 | |
75 | if (!filename) | |
c0edd9ed | 76 | (core_target->to_detach) (core_target, filename, from_tty); |
46c6cdcf | 77 | else |
c0edd9ed | 78 | (core_target->to_open) (filename, from_tty); |
c906108c | 79 | } |
c906108c | 80 | \f |
c5aa993b | 81 | |
de6854b5 MS |
82 | /* If there are two or more functions that wish to hook into |
83 | exec_file_command, this function will call all of the hook | |
84 | functions. */ | |
c906108c SS |
85 | |
86 | static void | |
5f08566b | 87 | call_extra_exec_file_hooks (const char *filename) |
c906108c SS |
88 | { |
89 | int i; | |
90 | ||
91 | for (i = 0; i < exec_file_hook_count; i++) | |
c5aa993b | 92 | (*exec_file_extra_hooks[i]) (filename); |
c906108c SS |
93 | } |
94 | ||
95 | /* Call this to specify the hook for exec_file_command to call back. | |
96 | This is called from the x-window display code. */ | |
97 | ||
98 | void | |
5f08566b | 99 | specify_exec_file_hook (void (*hook) (const char *)) |
c906108c SS |
100 | { |
101 | hook_type *new_array; | |
102 | ||
9a4105ab | 103 | if (deprecated_exec_file_display_hook != NULL) |
c906108c SS |
104 | { |
105 | /* There's already a hook installed. Arrange to have both it | |
aff410f1 | 106 | and the subsequent hooks called. */ |
c906108c SS |
107 | if (exec_file_hook_count == 0) |
108 | { | |
aff410f1 MS |
109 | /* If this is the first extra hook, initialize the hook |
110 | array. */ | |
111 | exec_file_extra_hooks = (hook_type *) | |
112 | xmalloc (sizeof (hook_type)); | |
9a4105ab AC |
113 | exec_file_extra_hooks[0] = deprecated_exec_file_display_hook; |
114 | deprecated_exec_file_display_hook = call_extra_exec_file_hooks; | |
c906108c SS |
115 | exec_file_hook_count = 1; |
116 | } | |
117 | ||
118 | /* Grow the hook array by one and add the new hook to the end. | |
119 | Yes, it's inefficient to grow it by one each time but since | |
120 | this is hardly ever called it's not a big deal. */ | |
121 | exec_file_hook_count++; | |
aff410f1 MS |
122 | new_array = (hook_type *) |
123 | xrealloc (exec_file_extra_hooks, | |
124 | exec_file_hook_count * sizeof (hook_type)); | |
c906108c SS |
125 | exec_file_extra_hooks = new_array; |
126 | exec_file_extra_hooks[exec_file_hook_count - 1] = hook; | |
127 | } | |
128 | else | |
9a4105ab | 129 | deprecated_exec_file_display_hook = hook; |
c906108c SS |
130 | } |
131 | ||
c906108c | 132 | void |
fba45db2 | 133 | reopen_exec_file (void) |
c906108c | 134 | { |
c906108c SS |
135 | char *filename; |
136 | int res; | |
137 | struct stat st; | |
f7545552 | 138 | struct cleanup *cleanups; |
c906108c | 139 | |
aff410f1 | 140 | /* Don't do anything if there isn't an exec file. */ |
4c42eaff | 141 | if (exec_bfd == NULL) |
c906108c | 142 | return; |
c5aa993b | 143 | |
aff410f1 | 144 | /* If the timestamp of the exec file has changed, reopen it. */ |
c2d11a7d | 145 | filename = xstrdup (bfd_get_filename (exec_bfd)); |
f7545552 | 146 | cleanups = make_cleanup (xfree, filename); |
c906108c SS |
147 | res = stat (filename, &st); |
148 | ||
c04ea773 | 149 | if (exec_bfd_mtime && exec_bfd_mtime != st.st_mtime) |
4c42eaff | 150 | exec_file_attach (filename, 0); |
939643d7 DJ |
151 | else |
152 | /* If we accessed the file since last opening it, close it now; | |
153 | this stops GDB from holding the executable open after it | |
154 | exits. */ | |
155 | bfd_cache_close_all (); | |
f7545552 TT |
156 | |
157 | do_cleanups (cleanups); | |
c906108c SS |
158 | } |
159 | \f | |
160 | /* If we have both a core file and an exec file, | |
161 | print a warning if they don't go together. */ | |
162 | ||
163 | void | |
fba45db2 | 164 | validate_files (void) |
c906108c SS |
165 | { |
166 | if (exec_bfd && core_bfd) | |
167 | { | |
168 | if (!core_file_matches_executable_p (core_bfd, exec_bfd)) | |
8a3fe4f8 | 169 | warning (_("core file may not match specified executable file.")); |
c5aa993b | 170 | else if (bfd_get_mtime (exec_bfd) > bfd_get_mtime (core_bfd)) |
8a3fe4f8 | 171 | warning (_("exec file is newer than core file.")); |
c906108c SS |
172 | } |
173 | } | |
174 | ||
175 | /* Return the name of the executable file as a string. | |
176 | ERR nonzero means get error if there is none specified; | |
177 | otherwise return 0 in that case. */ | |
178 | ||
179 | char * | |
fba45db2 | 180 | get_exec_file (int err) |
c906108c | 181 | { |
1f0c4988 JK |
182 | if (exec_filename) |
183 | return exec_filename; | |
c5aa993b JM |
184 | if (!err) |
185 | return NULL; | |
c906108c | 186 | |
8a3fe4f8 AC |
187 | error (_("No executable file specified.\n\ |
188 | Use the \"file\" or \"exec-file\" command.")); | |
c906108c SS |
189 | return NULL; |
190 | } | |
c906108c | 191 | \f |
c5aa993b | 192 | |
578d3588 | 193 | char * |
9b409511 | 194 | memory_error_message (enum target_xfer_status err, |
578d3588 | 195 | struct gdbarch *gdbarch, CORE_ADDR memaddr) |
6be7b56e PA |
196 | { |
197 | switch (err) | |
198 | { | |
199 | case TARGET_XFER_E_IO: | |
200 | /* Actually, address between memaddr and memaddr + len was out of | |
201 | bounds. */ | |
578d3588 PA |
202 | return xstrprintf (_("Cannot access memory at address %s"), |
203 | paddress (gdbarch, memaddr)); | |
bc113b4e | 204 | case TARGET_XFER_UNAVAILABLE: |
578d3588 PA |
205 | return xstrprintf (_("Memory at address %s unavailable."), |
206 | paddress (gdbarch, memaddr)); | |
6be7b56e PA |
207 | default: |
208 | internal_error (__FILE__, __LINE__, | |
9b409511 YQ |
209 | "unhandled target_xfer_status: %s (%s)", |
210 | target_xfer_status_to_string (err), | |
6be7b56e PA |
211 | plongest (err)); |
212 | } | |
213 | } | |
214 | ||
578d3588 | 215 | /* Report a memory error by throwing a suitable exception. */ |
c906108c SS |
216 | |
217 | void | |
9b409511 | 218 | memory_error (enum target_xfer_status err, CORE_ADDR memaddr) |
c906108c | 219 | { |
578d3588 | 220 | char *str; |
8635b3bf | 221 | enum errors exception = GDB_NO_ERROR; |
578d3588 PA |
222 | |
223 | /* Build error string. */ | |
224 | str = memory_error_message (err, target_gdbarch (), memaddr); | |
225 | make_cleanup (xfree, str); | |
226 | ||
227 | /* Choose the right error to throw. */ | |
228 | switch (err) | |
229 | { | |
230 | case TARGET_XFER_E_IO: | |
8635b3bf | 231 | exception = MEMORY_ERROR; |
578d3588 | 232 | break; |
bc113b4e | 233 | case TARGET_XFER_UNAVAILABLE: |
8635b3bf | 234 | exception = NOT_AVAILABLE_ERROR; |
578d3588 PA |
235 | break; |
236 | } | |
237 | ||
238 | /* Throw it. */ | |
8635b3bf | 239 | throw_error (exception, ("%s"), str); |
c906108c SS |
240 | } |
241 | ||
242 | /* Same as target_read_memory, but report an error if can't read. */ | |
4e5d721f | 243 | |
c906108c | 244 | void |
45aa4659 | 245 | read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
c906108c | 246 | { |
9b409511 | 247 | ULONGEST xfered = 0; |
c5504eaf | 248 | |
6be7b56e PA |
249 | while (xfered < len) |
250 | { | |
9b409511 YQ |
251 | enum target_xfer_status status; |
252 | ULONGEST xfered_len; | |
6be7b56e | 253 | |
9b409511 YQ |
254 | status = target_xfer_partial (current_target.beneath, |
255 | TARGET_OBJECT_MEMORY, NULL, | |
256 | myaddr + xfered, NULL, | |
257 | memaddr + xfered, len - xfered, | |
258 | &xfered_len); | |
259 | ||
5c328c05 YQ |
260 | if (status != TARGET_XFER_OK) |
261 | memory_error (status == TARGET_XFER_EOF ? TARGET_XFER_E_IO : status, | |
262 | memaddr + xfered); | |
9b409511 | 263 | |
9b409511 | 264 | xfered += xfered_len; |
6be7b56e PA |
265 | QUIT; |
266 | } | |
c906108c SS |
267 | } |
268 | ||
4e5d721f DE |
269 | /* Same as target_read_stack, but report an error if can't read. */ |
270 | ||
271 | void | |
45aa4659 | 272 | read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
4e5d721f DE |
273 | { |
274 | int status; | |
c5504eaf | 275 | |
4e5d721f DE |
276 | status = target_read_stack (memaddr, myaddr, len); |
277 | if (status != 0) | |
278 | memory_error (status, memaddr); | |
279 | } | |
280 | ||
0865b04a YQ |
281 | /* Same as target_read_code, but report an error if can't read. */ |
282 | ||
283 | void | |
284 | read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
285 | { | |
286 | int status; | |
287 | ||
288 | status = target_read_code (memaddr, myaddr, len); | |
289 | if (status != 0) | |
290 | memory_error (status, memaddr); | |
291 | } | |
292 | ||
ee8ff470 KB |
293 | /* Argument / return result struct for use with |
294 | do_captured_read_memory_integer(). MEMADDR and LEN are filled in | |
295 | by gdb_read_memory_integer(). RESULT is the contents that were | |
296 | successfully read from MEMADDR of length LEN. */ | |
c906108c | 297 | |
16a0f3e7 EZ |
298 | struct captured_read_memory_integer_arguments |
299 | { | |
300 | CORE_ADDR memaddr; | |
301 | int len; | |
e17a4113 | 302 | enum bfd_endian byte_order; |
16a0f3e7 EZ |
303 | LONGEST result; |
304 | }; | |
305 | ||
ee8ff470 | 306 | /* Helper function for gdb_read_memory_integer(). DATA must be a |
aff410f1 | 307 | pointer to a captured_read_memory_integer_arguments struct. |
ee8ff470 KB |
308 | Return 1 if successful. Note that the catch_errors() interface |
309 | will return 0 if an error occurred while reading memory. This | |
310 | choice of return code is so that we can distinguish between | |
311 | success and failure. */ | |
312 | ||
16a0f3e7 EZ |
313 | static int |
314 | do_captured_read_memory_integer (void *data) | |
315 | { | |
aff410f1 MS |
316 | struct captured_read_memory_integer_arguments *args |
317 | = (struct captured_read_memory_integer_arguments*) data; | |
16a0f3e7 EZ |
318 | CORE_ADDR memaddr = args->memaddr; |
319 | int len = args->len; | |
e17a4113 | 320 | enum bfd_endian byte_order = args->byte_order; |
16a0f3e7 | 321 | |
e17a4113 | 322 | args->result = read_memory_integer (memaddr, len, byte_order); |
16a0f3e7 | 323 | |
ee8ff470 | 324 | return 1; |
16a0f3e7 EZ |
325 | } |
326 | ||
ee8ff470 KB |
327 | /* Read memory at MEMADDR of length LEN and put the contents in |
328 | RETURN_VALUE. Return 0 if MEMADDR couldn't be read and non-zero | |
329 | if successful. */ | |
330 | ||
16a0f3e7 | 331 | int |
c5504eaf MS |
332 | safe_read_memory_integer (CORE_ADDR memaddr, int len, |
333 | enum bfd_endian byte_order, | |
e17a4113 | 334 | LONGEST *return_value) |
16a0f3e7 EZ |
335 | { |
336 | int status; | |
337 | struct captured_read_memory_integer_arguments args; | |
c5504eaf | 338 | |
16a0f3e7 EZ |
339 | args.memaddr = memaddr; |
340 | args.len = len; | |
e17a4113 | 341 | args.byte_order = byte_order; |
16a0f3e7 EZ |
342 | |
343 | status = catch_errors (do_captured_read_memory_integer, &args, | |
aff410f1 | 344 | "", RETURN_MASK_ALL); |
ee8ff470 | 345 | if (status) |
16a0f3e7 EZ |
346 | *return_value = args.result; |
347 | ||
348 | return status; | |
349 | } | |
350 | ||
c906108c | 351 | LONGEST |
aff410f1 MS |
352 | read_memory_integer (CORE_ADDR memaddr, int len, |
353 | enum bfd_endian byte_order) | |
c906108c | 354 | { |
dfb65433 | 355 | gdb_byte buf[sizeof (LONGEST)]; |
c906108c SS |
356 | |
357 | read_memory (memaddr, buf, len); | |
e17a4113 | 358 | return extract_signed_integer (buf, len, byte_order); |
c906108c SS |
359 | } |
360 | ||
361 | ULONGEST | |
aff410f1 MS |
362 | read_memory_unsigned_integer (CORE_ADDR memaddr, int len, |
363 | enum bfd_endian byte_order) | |
c906108c | 364 | { |
dfb65433 | 365 | gdb_byte buf[sizeof (ULONGEST)]; |
c906108c SS |
366 | |
367 | read_memory (memaddr, buf, len); | |
e17a4113 | 368 | return extract_unsigned_integer (buf, len, byte_order); |
c906108c SS |
369 | } |
370 | ||
0865b04a YQ |
371 | LONGEST |
372 | read_code_integer (CORE_ADDR memaddr, int len, | |
373 | enum bfd_endian byte_order) | |
374 | { | |
375 | gdb_byte buf[sizeof (LONGEST)]; | |
376 | ||
377 | read_code (memaddr, buf, len); | |
378 | return extract_signed_integer (buf, len, byte_order); | |
379 | } | |
380 | ||
381 | ULONGEST | |
382 | read_code_unsigned_integer (CORE_ADDR memaddr, int len, | |
383 | enum bfd_endian byte_order) | |
384 | { | |
385 | gdb_byte buf[sizeof (ULONGEST)]; | |
386 | ||
387 | read_code (memaddr, buf, len); | |
388 | return extract_unsigned_integer (buf, len, byte_order); | |
389 | } | |
390 | ||
c906108c | 391 | void |
fba45db2 | 392 | read_memory_string (CORE_ADDR memaddr, char *buffer, int max_len) |
c906108c | 393 | { |
52f0bd74 AC |
394 | char *cp; |
395 | int i; | |
c906108c SS |
396 | int cnt; |
397 | ||
398 | cp = buffer; | |
399 | while (1) | |
400 | { | |
401 | if (cp - buffer >= max_len) | |
c5aa993b JM |
402 | { |
403 | buffer[max_len - 1] = '\0'; | |
404 | break; | |
405 | } | |
c906108c SS |
406 | cnt = max_len - (cp - buffer); |
407 | if (cnt > 8) | |
408 | cnt = 8; | |
c8af03a2 | 409 | read_memory (memaddr + (int) (cp - buffer), (gdb_byte *) cp, cnt); |
c906108c | 410 | for (i = 0; i < cnt && *cp; i++, cp++) |
c5aa993b | 411 | ; /* null body */ |
c906108c SS |
412 | |
413 | if (i < cnt && !*cp) | |
c5aa993b | 414 | break; |
c906108c SS |
415 | } |
416 | } | |
c26e4683 | 417 | |
0d540cdf KD |
418 | CORE_ADDR |
419 | read_memory_typed_address (CORE_ADDR addr, struct type *type) | |
420 | { | |
dfb65433 | 421 | gdb_byte *buf = alloca (TYPE_LENGTH (type)); |
c5504eaf | 422 | |
0d540cdf KD |
423 | read_memory (addr, buf, TYPE_LENGTH (type)); |
424 | return extract_typed_address (buf, type); | |
425 | } | |
426 | ||
aff410f1 MS |
427 | /* Same as target_write_memory, but report an error if can't |
428 | write. */ | |
c26e4683 | 429 | void |
aff410f1 | 430 | write_memory (CORE_ADDR memaddr, |
45aa4659 | 431 | const bfd_byte *myaddr, ssize_t len) |
c26e4683 JB |
432 | { |
433 | int status; | |
c5504eaf | 434 | |
00630ca8 | 435 | status = target_write_memory (memaddr, myaddr, len); |
c26e4683 JB |
436 | if (status != 0) |
437 | memory_error (status, memaddr); | |
438 | } | |
439 | ||
972daa01 YQ |
440 | /* Same as write_memory, but notify 'memory_changed' observers. */ |
441 | ||
442 | void | |
443 | write_memory_with_notification (CORE_ADDR memaddr, const bfd_byte *myaddr, | |
444 | ssize_t len) | |
445 | { | |
446 | write_memory (memaddr, myaddr, len); | |
8de0566d | 447 | observer_notify_memory_changed (current_inferior (), memaddr, len, myaddr); |
972daa01 YQ |
448 | } |
449 | ||
aff410f1 MS |
450 | /* Store VALUE at ADDR in the inferior as a LEN-byte unsigned |
451 | integer. */ | |
c26e4683 | 452 | void |
c5504eaf MS |
453 | write_memory_unsigned_integer (CORE_ADDR addr, int len, |
454 | enum bfd_endian byte_order, | |
e17a4113 | 455 | ULONGEST value) |
c26e4683 | 456 | { |
dfb65433 | 457 | gdb_byte *buf = alloca (len); |
c5504eaf | 458 | |
e17a4113 | 459 | store_unsigned_integer (buf, len, byte_order, value); |
c26e4683 JB |
460 | write_memory (addr, buf, len); |
461 | } | |
462 | ||
aff410f1 MS |
463 | /* Store VALUE at ADDR in the inferior as a LEN-byte signed |
464 | integer. */ | |
c26e4683 | 465 | void |
c5504eaf MS |
466 | write_memory_signed_integer (CORE_ADDR addr, int len, |
467 | enum bfd_endian byte_order, | |
e17a4113 | 468 | LONGEST value) |
c26e4683 | 469 | { |
dfb65433 | 470 | gdb_byte *buf = alloca (len); |
c5504eaf | 471 | |
e17a4113 | 472 | store_signed_integer (buf, len, byte_order, value); |
c26e4683 JB |
473 | write_memory (addr, buf, len); |
474 | } | |
c906108c SS |
475 | \f |
476 | /* The current default bfd target. Points to storage allocated for | |
477 | gnutarget_string. */ | |
478 | char *gnutarget; | |
479 | ||
480 | /* Same thing, except it is "auto" not NULL for the default case. */ | |
481 | static char *gnutarget_string; | |
920d2a44 AC |
482 | static void |
483 | show_gnutarget_string (struct ui_file *file, int from_tty, | |
aff410f1 MS |
484 | struct cmd_list_element *c, |
485 | const char *value) | |
920d2a44 | 486 | { |
aff410f1 MS |
487 | fprintf_filtered (file, |
488 | _("The current BFD target is \"%s\".\n"), value); | |
920d2a44 | 489 | } |
c906108c | 490 | |
aff410f1 MS |
491 | static void set_gnutarget_command (char *, int, |
492 | struct cmd_list_element *); | |
c906108c SS |
493 | |
494 | static void | |
aff410f1 MS |
495 | set_gnutarget_command (char *ignore, int from_tty, |
496 | struct cmd_list_element *c) | |
c906108c | 497 | { |
44478ab3 TT |
498 | char *gend = gnutarget_string + strlen (gnutarget_string); |
499 | ||
500 | gend = remove_trailing_whitespace (gnutarget_string, gend); | |
501 | *gend = '\0'; | |
502 | ||
bde58177 | 503 | if (strcmp (gnutarget_string, "auto") == 0) |
c906108c SS |
504 | gnutarget = NULL; |
505 | else | |
506 | gnutarget = gnutarget_string; | |
507 | } | |
508 | ||
44478ab3 TT |
509 | /* A completion function for "set gnutarget". */ |
510 | ||
511 | static VEC (char_ptr) * | |
6f937416 PA |
512 | complete_set_gnutarget (struct cmd_list_element *cmd, |
513 | const char *text, const char *word) | |
44478ab3 TT |
514 | { |
515 | static const char **bfd_targets; | |
516 | ||
517 | if (bfd_targets == NULL) | |
518 | { | |
519 | int last; | |
520 | ||
521 | bfd_targets = bfd_target_list (); | |
522 | for (last = 0; bfd_targets[last] != NULL; ++last) | |
523 | ; | |
524 | ||
525 | bfd_targets = xrealloc (bfd_targets, (last + 2) * sizeof (const char **)); | |
526 | bfd_targets[last] = "auto"; | |
527 | bfd_targets[last + 1] = NULL; | |
528 | } | |
529 | ||
530 | return complete_on_enum (bfd_targets, text, word); | |
531 | } | |
532 | ||
c906108c SS |
533 | /* Set the gnutarget. */ |
534 | void | |
fba45db2 | 535 | set_gnutarget (char *newtarget) |
c906108c SS |
536 | { |
537 | if (gnutarget_string != NULL) | |
b8c9b27d | 538 | xfree (gnutarget_string); |
1b36a34b | 539 | gnutarget_string = xstrdup (newtarget); |
c906108c SS |
540 | set_gnutarget_command (NULL, 0, NULL); |
541 | } | |
542 | ||
543 | void | |
fba45db2 | 544 | _initialize_core (void) |
c906108c SS |
545 | { |
546 | struct cmd_list_element *c; | |
c5504eaf | 547 | |
1a966eab AC |
548 | c = add_cmd ("core-file", class_files, core_file_command, _("\ |
549 | Use FILE as core dump for examining memory and registers.\n\ | |
c906108c | 550 | No arg means have no core file. This command has been superseded by the\n\ |
1a966eab | 551 | `target core' and `detach' commands."), &cmdlist); |
5ba2abeb | 552 | set_cmd_completer (c, filename_completer); |
c906108c | 553 | |
26c41df3 | 554 | |
44478ab3 TT |
555 | c = add_setshow_string_noescape_cmd ("gnutarget", class_files, |
556 | &gnutarget_string, _("\ | |
26c41df3 AC |
557 | Set the current BFD target."), _("\ |
558 | Show the current BFD target."), _("\ | |
559 | Use `set gnutarget auto' to specify automatic detection."), | |
44478ab3 TT |
560 | set_gnutarget_command, |
561 | show_gnutarget_string, | |
562 | &setlist, &showlist); | |
563 | set_cmd_completer (c, complete_set_gnutarget); | |
564 | ||
7e20dfcd | 565 | add_alias_cmd ("g", "gnutarget", class_files, 1, &setlist); |
c906108c SS |
566 | |
567 | if (getenv ("GNUTARGET")) | |
568 | set_gnutarget (getenv ("GNUTARGET")); | |
569 | else | |
570 | set_gnutarget ("auto"); | |
571 | } |