Commit | Line | Data |
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c906108c | 1 | /* Core dump and executable file functions above target vector, for GDB. |
1bac305b | 2 | |
e2882c85 | 3 | Copyright (C) 1986-2018 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" |
76727919 | 33 | #include "observable.h" |
44478ab3 | 34 | #include "cli/cli-utils.h" |
c906108c | 35 | |
9a4105ab AC |
36 | /* You can have any number of hooks for `exec_file_command' command to |
37 | call. If there's only one hook, it is set in exec_file_display | |
38 | hook. If there are two or more hooks, they are set in | |
39 | exec_file_extra_hooks[], and deprecated_exec_file_display_hook is | |
40 | set to a function that calls all of them. This extra complexity is | |
41 | needed to preserve compatibility with old code that assumed that | |
42 | only one hook could be set, and which called | |
43 | deprecated_exec_file_display_hook directly. */ | |
c906108c | 44 | |
5f08566b | 45 | typedef void (*hook_type) (const char *); |
c906108c | 46 | |
aff410f1 MS |
47 | hook_type deprecated_exec_file_display_hook; /* The original hook. */ |
48 | static hook_type *exec_file_extra_hooks; /* Array of additional | |
49 | hooks. */ | |
50 | static int exec_file_hook_count = 0; /* Size of array. */ | |
c906108c SS |
51 | |
52 | /* Binary file diddling handle for the core file. */ | |
53 | ||
54 | bfd *core_bfd = NULL; | |
c0edd9ed | 55 | |
c906108c | 56 | \f |
c5aa993b | 57 | |
c906108c SS |
58 | /* Backward compatability with old way of specifying core files. */ |
59 | ||
60 | void | |
d64097b1 | 61 | core_file_command (const char *filename, int from_tty) |
c906108c | 62 | { |
aff410f1 | 63 | dont_repeat (); /* Either way, seems bogus. */ |
c906108c | 64 | |
f6ac5f3d | 65 | gdb_assert (the_core_target != NULL); |
46c6cdcf C |
66 | |
67 | if (!filename) | |
f6ac5f3d | 68 | the_core_target->detach (current_inferior (), from_tty); |
46c6cdcf | 69 | else |
f6ac5f3d | 70 | the_core_target->open (filename, from_tty); |
c906108c | 71 | } |
c906108c | 72 | \f |
c5aa993b | 73 | |
de6854b5 MS |
74 | /* If there are two or more functions that wish to hook into |
75 | exec_file_command, this function will call all of the hook | |
76 | functions. */ | |
c906108c SS |
77 | |
78 | static void | |
5f08566b | 79 | call_extra_exec_file_hooks (const char *filename) |
c906108c SS |
80 | { |
81 | int i; | |
82 | ||
83 | for (i = 0; i < exec_file_hook_count; i++) | |
c5aa993b | 84 | (*exec_file_extra_hooks[i]) (filename); |
c906108c SS |
85 | } |
86 | ||
87 | /* Call this to specify the hook for exec_file_command to call back. | |
88 | This is called from the x-window display code. */ | |
89 | ||
90 | void | |
5f08566b | 91 | specify_exec_file_hook (void (*hook) (const char *)) |
c906108c SS |
92 | { |
93 | hook_type *new_array; | |
94 | ||
9a4105ab | 95 | if (deprecated_exec_file_display_hook != NULL) |
c906108c SS |
96 | { |
97 | /* There's already a hook installed. Arrange to have both it | |
aff410f1 | 98 | and the subsequent hooks called. */ |
c906108c SS |
99 | if (exec_file_hook_count == 0) |
100 | { | |
aff410f1 MS |
101 | /* If this is the first extra hook, initialize the hook |
102 | array. */ | |
8d749320 | 103 | exec_file_extra_hooks = XNEW (hook_type); |
9a4105ab AC |
104 | exec_file_extra_hooks[0] = deprecated_exec_file_display_hook; |
105 | deprecated_exec_file_display_hook = call_extra_exec_file_hooks; | |
c906108c SS |
106 | exec_file_hook_count = 1; |
107 | } | |
108 | ||
109 | /* Grow the hook array by one and add the new hook to the end. | |
110 | Yes, it's inefficient to grow it by one each time but since | |
111 | this is hardly ever called it's not a big deal. */ | |
112 | exec_file_hook_count++; | |
aff410f1 MS |
113 | new_array = (hook_type *) |
114 | xrealloc (exec_file_extra_hooks, | |
115 | exec_file_hook_count * sizeof (hook_type)); | |
c906108c SS |
116 | exec_file_extra_hooks = new_array; |
117 | exec_file_extra_hooks[exec_file_hook_count - 1] = hook; | |
118 | } | |
119 | else | |
9a4105ab | 120 | deprecated_exec_file_display_hook = hook; |
c906108c SS |
121 | } |
122 | ||
c906108c | 123 | void |
fba45db2 | 124 | reopen_exec_file (void) |
c906108c | 125 | { |
c906108c SS |
126 | int res; |
127 | struct stat st; | |
c906108c | 128 | |
aff410f1 | 129 | /* Don't do anything if there isn't an exec file. */ |
4c42eaff | 130 | if (exec_bfd == NULL) |
c906108c | 131 | return; |
c5aa993b | 132 | |
aff410f1 | 133 | /* If the timestamp of the exec file has changed, reopen it. */ |
0638b7f9 TT |
134 | std::string filename = bfd_get_filename (exec_bfd); |
135 | res = stat (filename.c_str (), &st); | |
c906108c | 136 | |
537d9b85 | 137 | if (res == 0 && exec_bfd_mtime && exec_bfd_mtime != st.st_mtime) |
0638b7f9 | 138 | exec_file_attach (filename.c_str (), 0); |
939643d7 DJ |
139 | else |
140 | /* If we accessed the file since last opening it, close it now; | |
141 | this stops GDB from holding the executable open after it | |
142 | exits. */ | |
143 | bfd_cache_close_all (); | |
c906108c SS |
144 | } |
145 | \f | |
146 | /* If we have both a core file and an exec file, | |
147 | print a warning if they don't go together. */ | |
148 | ||
149 | void | |
fba45db2 | 150 | validate_files (void) |
c906108c SS |
151 | { |
152 | if (exec_bfd && core_bfd) | |
153 | { | |
154 | if (!core_file_matches_executable_p (core_bfd, exec_bfd)) | |
8a3fe4f8 | 155 | warning (_("core file may not match specified executable file.")); |
c5aa993b | 156 | else if (bfd_get_mtime (exec_bfd) > bfd_get_mtime (core_bfd)) |
8a3fe4f8 | 157 | warning (_("exec file is newer than core file.")); |
c906108c SS |
158 | } |
159 | } | |
160 | ||
2090129c | 161 | /* See common/common-inferior.h. */ |
c906108c SS |
162 | |
163 | char * | |
fba45db2 | 164 | get_exec_file (int err) |
c906108c | 165 | { |
1f0c4988 JK |
166 | if (exec_filename) |
167 | return exec_filename; | |
c5aa993b JM |
168 | if (!err) |
169 | return NULL; | |
c906108c | 170 | |
8a3fe4f8 AC |
171 | error (_("No executable file specified.\n\ |
172 | Use the \"file\" or \"exec-file\" command.")); | |
c906108c SS |
173 | return NULL; |
174 | } | |
c906108c | 175 | \f |
c5aa993b | 176 | |
1ccbe998 | 177 | std::string |
9b409511 | 178 | memory_error_message (enum target_xfer_status err, |
578d3588 | 179 | struct gdbarch *gdbarch, CORE_ADDR memaddr) |
6be7b56e PA |
180 | { |
181 | switch (err) | |
182 | { | |
183 | case TARGET_XFER_E_IO: | |
184 | /* Actually, address between memaddr and memaddr + len was out of | |
185 | bounds. */ | |
1ccbe998 TT |
186 | return string_printf (_("Cannot access memory at address %s"), |
187 | paddress (gdbarch, memaddr)); | |
bc113b4e | 188 | case TARGET_XFER_UNAVAILABLE: |
1ccbe998 TT |
189 | return string_printf (_("Memory at address %s unavailable."), |
190 | paddress (gdbarch, memaddr)); | |
6be7b56e PA |
191 | default: |
192 | internal_error (__FILE__, __LINE__, | |
9b409511 YQ |
193 | "unhandled target_xfer_status: %s (%s)", |
194 | target_xfer_status_to_string (err), | |
6be7b56e PA |
195 | plongest (err)); |
196 | } | |
197 | } | |
198 | ||
578d3588 | 199 | /* Report a memory error by throwing a suitable exception. */ |
c906108c SS |
200 | |
201 | void | |
9b409511 | 202 | memory_error (enum target_xfer_status err, CORE_ADDR memaddr) |
c906108c | 203 | { |
8635b3bf | 204 | enum errors exception = GDB_NO_ERROR; |
578d3588 PA |
205 | |
206 | /* Build error string. */ | |
1ccbe998 | 207 | std::string str = memory_error_message (err, target_gdbarch (), memaddr); |
578d3588 PA |
208 | |
209 | /* Choose the right error to throw. */ | |
210 | switch (err) | |
211 | { | |
212 | case TARGET_XFER_E_IO: | |
8635b3bf | 213 | exception = MEMORY_ERROR; |
578d3588 | 214 | break; |
bc113b4e | 215 | case TARGET_XFER_UNAVAILABLE: |
8635b3bf | 216 | exception = NOT_AVAILABLE_ERROR; |
578d3588 PA |
217 | break; |
218 | } | |
219 | ||
220 | /* Throw it. */ | |
1ccbe998 | 221 | throw_error (exception, ("%s"), str.c_str ()); |
c906108c SS |
222 | } |
223 | ||
edf689f0 | 224 | /* Helper function. */ |
4e5d721f | 225 | |
edf689f0 YQ |
226 | static void |
227 | read_memory_object (enum target_object object, CORE_ADDR memaddr, | |
228 | gdb_byte *myaddr, ssize_t len) | |
c906108c | 229 | { |
9b409511 | 230 | ULONGEST xfered = 0; |
c5504eaf | 231 | |
6be7b56e PA |
232 | while (xfered < len) |
233 | { | |
9b409511 YQ |
234 | enum target_xfer_status status; |
235 | ULONGEST xfered_len; | |
6be7b56e | 236 | |
f6ac5f3d | 237 | status = target_xfer_partial (target_stack, object, NULL, |
9b409511 YQ |
238 | myaddr + xfered, NULL, |
239 | memaddr + xfered, len - xfered, | |
240 | &xfered_len); | |
241 | ||
5c328c05 YQ |
242 | if (status != TARGET_XFER_OK) |
243 | memory_error (status == TARGET_XFER_EOF ? TARGET_XFER_E_IO : status, | |
244 | memaddr + xfered); | |
9b409511 | 245 | |
9b409511 | 246 | xfered += xfered_len; |
6be7b56e PA |
247 | QUIT; |
248 | } | |
c906108c SS |
249 | } |
250 | ||
edf689f0 YQ |
251 | /* Same as target_read_memory, but report an error if can't read. */ |
252 | ||
253 | void | |
254 | read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
255 | { | |
256 | read_memory_object (TARGET_OBJECT_MEMORY, memaddr, myaddr, len); | |
257 | } | |
258 | ||
4e5d721f DE |
259 | /* Same as target_read_stack, but report an error if can't read. */ |
260 | ||
261 | void | |
45aa4659 | 262 | read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
4e5d721f | 263 | { |
edf689f0 | 264 | read_memory_object (TARGET_OBJECT_STACK_MEMORY, memaddr, myaddr, len); |
4e5d721f DE |
265 | } |
266 | ||
0865b04a YQ |
267 | /* Same as target_read_code, but report an error if can't read. */ |
268 | ||
269 | void | |
270 | read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
271 | { | |
edf689f0 | 272 | read_memory_object (TARGET_OBJECT_CODE_MEMORY, memaddr, myaddr, len); |
0865b04a YQ |
273 | } |
274 | ||
ee8ff470 KB |
275 | /* Read memory at MEMADDR of length LEN and put the contents in |
276 | RETURN_VALUE. Return 0 if MEMADDR couldn't be read and non-zero | |
277 | if successful. */ | |
278 | ||
16a0f3e7 | 279 | int |
c5504eaf MS |
280 | safe_read_memory_integer (CORE_ADDR memaddr, int len, |
281 | enum bfd_endian byte_order, | |
e17a4113 | 282 | LONGEST *return_value) |
16a0f3e7 | 283 | { |
5e43d467 | 284 | gdb_byte buf[sizeof (LONGEST)]; |
16a0f3e7 | 285 | |
5e43d467 UW |
286 | if (target_read_memory (memaddr, buf, len)) |
287 | return 0; | |
16a0f3e7 | 288 | |
5e43d467 UW |
289 | *return_value = extract_signed_integer (buf, len, byte_order); |
290 | return 1; | |
16a0f3e7 EZ |
291 | } |
292 | ||
cc2c4da8 MK |
293 | /* Read memory at MEMADDR of length LEN and put the contents in |
294 | RETURN_VALUE. Return 0 if MEMADDR couldn't be read and non-zero | |
295 | if successful. */ | |
296 | ||
297 | int | |
298 | safe_read_memory_unsigned_integer (CORE_ADDR memaddr, int len, | |
299 | enum bfd_endian byte_order, | |
300 | ULONGEST *return_value) | |
301 | { | |
302 | gdb_byte buf[sizeof (ULONGEST)]; | |
303 | ||
304 | if (target_read_memory (memaddr, buf, len)) | |
305 | return 0; | |
306 | ||
307 | *return_value = extract_unsigned_integer (buf, len, byte_order); | |
308 | return 1; | |
309 | } | |
310 | ||
c906108c | 311 | LONGEST |
aff410f1 MS |
312 | read_memory_integer (CORE_ADDR memaddr, int len, |
313 | enum bfd_endian byte_order) | |
c906108c | 314 | { |
dfb65433 | 315 | gdb_byte buf[sizeof (LONGEST)]; |
c906108c SS |
316 | |
317 | read_memory (memaddr, buf, len); | |
e17a4113 | 318 | return extract_signed_integer (buf, len, byte_order); |
c906108c SS |
319 | } |
320 | ||
321 | ULONGEST | |
aff410f1 MS |
322 | read_memory_unsigned_integer (CORE_ADDR memaddr, int len, |
323 | enum bfd_endian byte_order) | |
c906108c | 324 | { |
dfb65433 | 325 | gdb_byte buf[sizeof (ULONGEST)]; |
c906108c SS |
326 | |
327 | read_memory (memaddr, buf, len); | |
e17a4113 | 328 | return extract_unsigned_integer (buf, len, byte_order); |
c906108c SS |
329 | } |
330 | ||
0865b04a YQ |
331 | LONGEST |
332 | read_code_integer (CORE_ADDR memaddr, int len, | |
333 | enum bfd_endian byte_order) | |
334 | { | |
335 | gdb_byte buf[sizeof (LONGEST)]; | |
336 | ||
337 | read_code (memaddr, buf, len); | |
338 | return extract_signed_integer (buf, len, byte_order); | |
339 | } | |
340 | ||
341 | ULONGEST | |
342 | read_code_unsigned_integer (CORE_ADDR memaddr, int len, | |
343 | enum bfd_endian byte_order) | |
344 | { | |
345 | gdb_byte buf[sizeof (ULONGEST)]; | |
346 | ||
347 | read_code (memaddr, buf, len); | |
348 | return extract_unsigned_integer (buf, len, byte_order); | |
349 | } | |
350 | ||
c906108c | 351 | void |
fba45db2 | 352 | read_memory_string (CORE_ADDR memaddr, char *buffer, int max_len) |
c906108c | 353 | { |
52f0bd74 AC |
354 | char *cp; |
355 | int i; | |
c906108c SS |
356 | int cnt; |
357 | ||
358 | cp = buffer; | |
359 | while (1) | |
360 | { | |
361 | if (cp - buffer >= max_len) | |
c5aa993b JM |
362 | { |
363 | buffer[max_len - 1] = '\0'; | |
364 | break; | |
365 | } | |
c906108c SS |
366 | cnt = max_len - (cp - buffer); |
367 | if (cnt > 8) | |
368 | cnt = 8; | |
c8af03a2 | 369 | read_memory (memaddr + (int) (cp - buffer), (gdb_byte *) cp, cnt); |
c906108c | 370 | for (i = 0; i < cnt && *cp; i++, cp++) |
c5aa993b | 371 | ; /* null body */ |
c906108c SS |
372 | |
373 | if (i < cnt && !*cp) | |
c5aa993b | 374 | break; |
c906108c SS |
375 | } |
376 | } | |
c26e4683 | 377 | |
0d540cdf KD |
378 | CORE_ADDR |
379 | read_memory_typed_address (CORE_ADDR addr, struct type *type) | |
380 | { | |
224c3ddb | 381 | gdb_byte *buf = (gdb_byte *) alloca (TYPE_LENGTH (type)); |
c5504eaf | 382 | |
0d540cdf KD |
383 | read_memory (addr, buf, TYPE_LENGTH (type)); |
384 | return extract_typed_address (buf, type); | |
385 | } | |
386 | ||
cb6f16cf SM |
387 | /* See gdbcore.h. */ |
388 | ||
c26e4683 | 389 | void |
aff410f1 | 390 | write_memory (CORE_ADDR memaddr, |
45aa4659 | 391 | const bfd_byte *myaddr, ssize_t len) |
c26e4683 JB |
392 | { |
393 | int status; | |
c5504eaf | 394 | |
00630ca8 | 395 | status = target_write_memory (memaddr, myaddr, len); |
c26e4683 | 396 | if (status != 0) |
d09f2c3f | 397 | memory_error (TARGET_XFER_E_IO, memaddr); |
c26e4683 JB |
398 | } |
399 | ||
972daa01 YQ |
400 | /* Same as write_memory, but notify 'memory_changed' observers. */ |
401 | ||
402 | void | |
403 | write_memory_with_notification (CORE_ADDR memaddr, const bfd_byte *myaddr, | |
404 | ssize_t len) | |
405 | { | |
406 | write_memory (memaddr, myaddr, len); | |
76727919 | 407 | gdb::observers::memory_changed.notify (current_inferior (), memaddr, len, myaddr); |
972daa01 YQ |
408 | } |
409 | ||
aff410f1 MS |
410 | /* Store VALUE at ADDR in the inferior as a LEN-byte unsigned |
411 | integer. */ | |
c26e4683 | 412 | void |
c5504eaf MS |
413 | write_memory_unsigned_integer (CORE_ADDR addr, int len, |
414 | enum bfd_endian byte_order, | |
e17a4113 | 415 | ULONGEST value) |
c26e4683 | 416 | { |
224c3ddb | 417 | gdb_byte *buf = (gdb_byte *) alloca (len); |
c5504eaf | 418 | |
e17a4113 | 419 | store_unsigned_integer (buf, len, byte_order, value); |
c26e4683 JB |
420 | write_memory (addr, buf, len); |
421 | } | |
422 | ||
aff410f1 MS |
423 | /* Store VALUE at ADDR in the inferior as a LEN-byte signed |
424 | integer. */ | |
c26e4683 | 425 | void |
c5504eaf MS |
426 | write_memory_signed_integer (CORE_ADDR addr, int len, |
427 | enum bfd_endian byte_order, | |
e17a4113 | 428 | LONGEST value) |
c26e4683 | 429 | { |
224c3ddb | 430 | gdb_byte *buf = (gdb_byte *) alloca (len); |
c5504eaf | 431 | |
e17a4113 | 432 | store_signed_integer (buf, len, byte_order, value); |
c26e4683 JB |
433 | write_memory (addr, buf, len); |
434 | } | |
c906108c SS |
435 | \f |
436 | /* The current default bfd target. Points to storage allocated for | |
437 | gnutarget_string. */ | |
438 | char *gnutarget; | |
439 | ||
440 | /* Same thing, except it is "auto" not NULL for the default case. */ | |
441 | static char *gnutarget_string; | |
920d2a44 AC |
442 | static void |
443 | show_gnutarget_string (struct ui_file *file, int from_tty, | |
aff410f1 MS |
444 | struct cmd_list_element *c, |
445 | const char *value) | |
920d2a44 | 446 | { |
aff410f1 MS |
447 | fprintf_filtered (file, |
448 | _("The current BFD target is \"%s\".\n"), value); | |
920d2a44 | 449 | } |
c906108c | 450 | |
c906108c | 451 | static void |
eb4c3f4a | 452 | set_gnutarget_command (const char *ignore, int from_tty, |
aff410f1 | 453 | struct cmd_list_element *c) |
c906108c | 454 | { |
44478ab3 TT |
455 | char *gend = gnutarget_string + strlen (gnutarget_string); |
456 | ||
457 | gend = remove_trailing_whitespace (gnutarget_string, gend); | |
458 | *gend = '\0'; | |
459 | ||
bde58177 | 460 | if (strcmp (gnutarget_string, "auto") == 0) |
c906108c SS |
461 | gnutarget = NULL; |
462 | else | |
463 | gnutarget = gnutarget_string; | |
464 | } | |
465 | ||
44478ab3 TT |
466 | /* A completion function for "set gnutarget". */ |
467 | ||
eb3ff9a5 | 468 | static void |
6f937416 | 469 | complete_set_gnutarget (struct cmd_list_element *cmd, |
eb3ff9a5 | 470 | completion_tracker &tracker, |
6f937416 | 471 | const char *text, const char *word) |
44478ab3 TT |
472 | { |
473 | static const char **bfd_targets; | |
474 | ||
475 | if (bfd_targets == NULL) | |
476 | { | |
477 | int last; | |
478 | ||
479 | bfd_targets = bfd_target_list (); | |
480 | for (last = 0; bfd_targets[last] != NULL; ++last) | |
481 | ; | |
482 | ||
224c3ddb | 483 | bfd_targets = XRESIZEVEC (const char *, bfd_targets, last + 2); |
44478ab3 TT |
484 | bfd_targets[last] = "auto"; |
485 | bfd_targets[last + 1] = NULL; | |
486 | } | |
487 | ||
eb3ff9a5 | 488 | complete_on_enum (tracker, bfd_targets, text, word); |
44478ab3 TT |
489 | } |
490 | ||
c906108c SS |
491 | /* Set the gnutarget. */ |
492 | void | |
a121b7c1 | 493 | set_gnutarget (const char *newtarget) |
c906108c SS |
494 | { |
495 | if (gnutarget_string != NULL) | |
b8c9b27d | 496 | xfree (gnutarget_string); |
1b36a34b | 497 | gnutarget_string = xstrdup (newtarget); |
c906108c SS |
498 | set_gnutarget_command (NULL, 0, NULL); |
499 | } | |
500 | ||
501 | void | |
fba45db2 | 502 | _initialize_core (void) |
c906108c SS |
503 | { |
504 | struct cmd_list_element *c; | |
c5504eaf | 505 | |
1a966eab AC |
506 | c = add_cmd ("core-file", class_files, core_file_command, _("\ |
507 | Use FILE as core dump for examining memory and registers.\n\ | |
c906108c | 508 | No arg means have no core file. This command has been superseded by the\n\ |
1a966eab | 509 | `target core' and `detach' commands."), &cmdlist); |
5ba2abeb | 510 | set_cmd_completer (c, filename_completer); |
c906108c | 511 | |
26c41df3 | 512 | |
44478ab3 TT |
513 | c = add_setshow_string_noescape_cmd ("gnutarget", class_files, |
514 | &gnutarget_string, _("\ | |
26c41df3 AC |
515 | Set the current BFD target."), _("\ |
516 | Show the current BFD target."), _("\ | |
517 | Use `set gnutarget auto' to specify automatic detection."), | |
44478ab3 TT |
518 | set_gnutarget_command, |
519 | show_gnutarget_string, | |
520 | &setlist, &showlist); | |
521 | set_cmd_completer (c, complete_set_gnutarget); | |
522 | ||
7e20dfcd | 523 | add_alias_cmd ("g", "gnutarget", class_files, 1, &setlist); |
c906108c SS |
524 | |
525 | if (getenv ("GNUTARGET")) | |
526 | set_gnutarget (getenv ("GNUTARGET")); | |
527 | else | |
528 | set_gnutarget ("auto"); | |
529 | } |