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c906108c | 1 | /* Core dump and executable file functions above target vector, for GDB. |
1bac305b | 2 | |
213516ef | 3 | Copyright (C) 1986-2023 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" | |
d55e5aa6 | 21 | #include <signal.h> |
4de283e4 TT |
22 | #include <fcntl.h> |
23 | #include "inferior.h" | |
24 | #include "symtab.h" | |
c906108c SS |
25 | #include "command.h" |
26 | #include "gdbcmd.h" | |
4de283e4 TT |
27 | #include "bfd.h" |
28 | #include "target.h" | |
c906108c | 29 | #include "gdbcore.h" |
4de283e4 TT |
30 | #include "dis-asm.h" |
31 | #include <sys/stat.h> | |
32 | #include "completer.h" | |
76727919 | 33 | #include "observable.h" |
4de283e4 | 34 | #include "cli/cli-utils.h" |
0d12e84c | 35 | #include "gdbarch.h" |
ec517d10 | 36 | #include "interps.h" |
c906108c | 37 | |
9a4105ab AC |
38 | /* You can have any number of hooks for `exec_file_command' command to |
39 | call. If there's only one hook, it is set in exec_file_display | |
40 | hook. If there are two or more hooks, they are set in | |
41 | exec_file_extra_hooks[], and deprecated_exec_file_display_hook is | |
42 | set to a function that calls all of them. This extra complexity is | |
43 | needed to preserve compatibility with old code that assumed that | |
44 | only one hook could be set, and which called | |
45 | deprecated_exec_file_display_hook directly. */ | |
c906108c | 46 | |
5f08566b | 47 | typedef void (*hook_type) (const char *); |
c906108c | 48 | |
aff410f1 MS |
49 | hook_type deprecated_exec_file_display_hook; /* The original hook. */ |
50 | static hook_type *exec_file_extra_hooks; /* Array of additional | |
51 | hooks. */ | |
52 | static int exec_file_hook_count = 0; /* Size of array. */ | |
c906108c | 53 | |
c906108c | 54 | \f |
c5aa993b | 55 | |
de6854b5 MS |
56 | /* If there are two or more functions that wish to hook into |
57 | exec_file_command, this function will call all of the hook | |
58 | functions. */ | |
c906108c SS |
59 | |
60 | static void | |
5f08566b | 61 | call_extra_exec_file_hooks (const char *filename) |
c906108c SS |
62 | { |
63 | int i; | |
64 | ||
65 | for (i = 0; i < exec_file_hook_count; i++) | |
c5aa993b | 66 | (*exec_file_extra_hooks[i]) (filename); |
c906108c SS |
67 | } |
68 | ||
69 | /* Call this to specify the hook for exec_file_command to call back. | |
70 | This is called from the x-window display code. */ | |
71 | ||
72 | void | |
5f08566b | 73 | specify_exec_file_hook (void (*hook) (const char *)) |
c906108c SS |
74 | { |
75 | hook_type *new_array; | |
76 | ||
9a4105ab | 77 | if (deprecated_exec_file_display_hook != NULL) |
c906108c SS |
78 | { |
79 | /* There's already a hook installed. Arrange to have both it | |
aff410f1 | 80 | and the subsequent hooks called. */ |
c906108c SS |
81 | if (exec_file_hook_count == 0) |
82 | { | |
aff410f1 MS |
83 | /* If this is the first extra hook, initialize the hook |
84 | array. */ | |
8d749320 | 85 | exec_file_extra_hooks = XNEW (hook_type); |
9a4105ab AC |
86 | exec_file_extra_hooks[0] = deprecated_exec_file_display_hook; |
87 | deprecated_exec_file_display_hook = call_extra_exec_file_hooks; | |
c906108c SS |
88 | exec_file_hook_count = 1; |
89 | } | |
90 | ||
91 | /* Grow the hook array by one and add the new hook to the end. | |
dda83cd7 SM |
92 | Yes, it's inefficient to grow it by one each time but since |
93 | this is hardly ever called it's not a big deal. */ | |
c906108c | 94 | exec_file_hook_count++; |
aff410f1 MS |
95 | new_array = (hook_type *) |
96 | xrealloc (exec_file_extra_hooks, | |
97 | exec_file_hook_count * sizeof (hook_type)); | |
c906108c SS |
98 | exec_file_extra_hooks = new_array; |
99 | exec_file_extra_hooks[exec_file_hook_count - 1] = hook; | |
100 | } | |
101 | else | |
9a4105ab | 102 | deprecated_exec_file_display_hook = hook; |
c906108c SS |
103 | } |
104 | ||
c906108c | 105 | void |
fba45db2 | 106 | reopen_exec_file (void) |
c906108c | 107 | { |
c906108c SS |
108 | int res; |
109 | struct stat st; | |
c906108c | 110 | |
aff410f1 | 111 | /* Don't do anything if there isn't an exec file. */ |
7e10abd1 | 112 | if (current_program_space->exec_bfd () == NULL) |
c906108c | 113 | return; |
c5aa993b | 114 | |
aff410f1 | 115 | /* If the timestamp of the exec file has changed, reopen it. */ |
7e10abd1 | 116 | std::string filename = bfd_get_filename (current_program_space->exec_bfd ()); |
0638b7f9 | 117 | res = stat (filename.c_str (), &st); |
c906108c | 118 | |
5a36e715 TT |
119 | if (res == 0 |
120 | && current_program_space->ebfd_mtime | |
121 | && current_program_space->ebfd_mtime != st.st_mtime) | |
0638b7f9 | 122 | exec_file_attach (filename.c_str (), 0); |
939643d7 DJ |
123 | else |
124 | /* If we accessed the file since last opening it, close it now; | |
125 | this stops GDB from holding the executable open after it | |
126 | exits. */ | |
127 | bfd_cache_close_all (); | |
c906108c SS |
128 | } |
129 | \f | |
130 | /* If we have both a core file and an exec file, | |
131 | print a warning if they don't go together. */ | |
132 | ||
133 | void | |
fba45db2 | 134 | validate_files (void) |
c906108c | 135 | { |
7e10abd1 | 136 | if (current_program_space->exec_bfd () && core_bfd) |
c906108c | 137 | { |
7e10abd1 TT |
138 | if (!core_file_matches_executable_p (core_bfd, |
139 | current_program_space->exec_bfd ())) | |
8a3fe4f8 | 140 | warning (_("core file may not match specified executable file.")); |
7e10abd1 TT |
141 | else if (bfd_get_mtime (current_program_space->exec_bfd ()) |
142 | > bfd_get_mtime (core_bfd)) | |
8a3fe4f8 | 143 | warning (_("exec file is newer than core file.")); |
c906108c SS |
144 | } |
145 | } | |
146 | ||
268a13a5 | 147 | /* See gdbsupport/common-inferior.h. */ |
c906108c | 148 | |
d9fa87f4 | 149 | const char * |
fba45db2 | 150 | get_exec_file (int err) |
c906108c | 151 | { |
c20cb686 TT |
152 | if (current_program_space->exec_filename != nullptr) |
153 | return current_program_space->exec_filename.get (); | |
c5aa993b JM |
154 | if (!err) |
155 | return NULL; | |
c906108c | 156 | |
8a3fe4f8 AC |
157 | error (_("No executable file specified.\n\ |
158 | Use the \"file\" or \"exec-file\" command.")); | |
c906108c | 159 | } |
c906108c | 160 | \f |
c5aa993b | 161 | |
1ccbe998 | 162 | std::string |
9b409511 | 163 | memory_error_message (enum target_xfer_status err, |
578d3588 | 164 | struct gdbarch *gdbarch, CORE_ADDR memaddr) |
6be7b56e PA |
165 | { |
166 | switch (err) | |
167 | { | |
168 | case TARGET_XFER_E_IO: | |
169 | /* Actually, address between memaddr and memaddr + len was out of | |
170 | bounds. */ | |
1ccbe998 TT |
171 | return string_printf (_("Cannot access memory at address %s"), |
172 | paddress (gdbarch, memaddr)); | |
bc113b4e | 173 | case TARGET_XFER_UNAVAILABLE: |
1ccbe998 TT |
174 | return string_printf (_("Memory at address %s unavailable."), |
175 | paddress (gdbarch, memaddr)); | |
6be7b56e | 176 | default: |
f34652de | 177 | internal_error ("unhandled target_xfer_status: %s (%s)", |
9b409511 | 178 | target_xfer_status_to_string (err), |
6be7b56e PA |
179 | plongest (err)); |
180 | } | |
181 | } | |
182 | ||
578d3588 | 183 | /* Report a memory error by throwing a suitable exception. */ |
c906108c SS |
184 | |
185 | void | |
9b409511 | 186 | memory_error (enum target_xfer_status err, CORE_ADDR memaddr) |
c906108c | 187 | { |
8635b3bf | 188 | enum errors exception = GDB_NO_ERROR; |
578d3588 PA |
189 | |
190 | /* Build error string. */ | |
99d9c3b9 SM |
191 | std::string str |
192 | = memory_error_message (err, current_inferior ()->arch (), memaddr); | |
578d3588 PA |
193 | |
194 | /* Choose the right error to throw. */ | |
195 | switch (err) | |
196 | { | |
197 | case TARGET_XFER_E_IO: | |
8635b3bf | 198 | exception = MEMORY_ERROR; |
578d3588 | 199 | break; |
bc113b4e | 200 | case TARGET_XFER_UNAVAILABLE: |
8635b3bf | 201 | exception = NOT_AVAILABLE_ERROR; |
578d3588 PA |
202 | break; |
203 | } | |
204 | ||
205 | /* Throw it. */ | |
1ccbe998 | 206 | throw_error (exception, ("%s"), str.c_str ()); |
c906108c SS |
207 | } |
208 | ||
edf689f0 | 209 | /* Helper function. */ |
4e5d721f | 210 | |
edf689f0 YQ |
211 | static void |
212 | read_memory_object (enum target_object object, CORE_ADDR memaddr, | |
213 | gdb_byte *myaddr, ssize_t len) | |
c906108c | 214 | { |
9b409511 | 215 | ULONGEST xfered = 0; |
c5504eaf | 216 | |
6be7b56e PA |
217 | while (xfered < len) |
218 | { | |
9b409511 YQ |
219 | enum target_xfer_status status; |
220 | ULONGEST xfered_len; | |
6be7b56e | 221 | |
328d42d8 SM |
222 | status = target_xfer_partial (current_inferior ()->top_target (), object, |
223 | NULL, myaddr + xfered, NULL, | |
9b409511 YQ |
224 | memaddr + xfered, len - xfered, |
225 | &xfered_len); | |
226 | ||
5c328c05 YQ |
227 | if (status != TARGET_XFER_OK) |
228 | memory_error (status == TARGET_XFER_EOF ? TARGET_XFER_E_IO : status, | |
229 | memaddr + xfered); | |
9b409511 | 230 | |
9b409511 | 231 | xfered += xfered_len; |
6be7b56e PA |
232 | QUIT; |
233 | } | |
c906108c SS |
234 | } |
235 | ||
edf689f0 YQ |
236 | /* Same as target_read_memory, but report an error if can't read. */ |
237 | ||
238 | void | |
239 | read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
240 | { | |
241 | read_memory_object (TARGET_OBJECT_MEMORY, memaddr, myaddr, len); | |
242 | } | |
243 | ||
4e5d721f DE |
244 | /* Same as target_read_stack, but report an error if can't read. */ |
245 | ||
246 | void | |
45aa4659 | 247 | read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
4e5d721f | 248 | { |
edf689f0 | 249 | read_memory_object (TARGET_OBJECT_STACK_MEMORY, memaddr, myaddr, len); |
4e5d721f DE |
250 | } |
251 | ||
0865b04a YQ |
252 | /* Same as target_read_code, but report an error if can't read. */ |
253 | ||
254 | void | |
255 | read_code (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) | |
256 | { | |
edf689f0 | 257 | read_memory_object (TARGET_OBJECT_CODE_MEMORY, memaddr, myaddr, len); |
0865b04a YQ |
258 | } |
259 | ||
ee8ff470 KB |
260 | /* Read memory at MEMADDR of length LEN and put the contents in |
261 | RETURN_VALUE. Return 0 if MEMADDR couldn't be read and non-zero | |
262 | if successful. */ | |
263 | ||
16a0f3e7 | 264 | int |
c5504eaf MS |
265 | safe_read_memory_integer (CORE_ADDR memaddr, int len, |
266 | enum bfd_endian byte_order, | |
e17a4113 | 267 | LONGEST *return_value) |
16a0f3e7 | 268 | { |
5e43d467 | 269 | gdb_byte buf[sizeof (LONGEST)]; |
16a0f3e7 | 270 | |
5e43d467 UW |
271 | if (target_read_memory (memaddr, buf, len)) |
272 | return 0; | |
16a0f3e7 | 273 | |
5e43d467 UW |
274 | *return_value = extract_signed_integer (buf, len, byte_order); |
275 | return 1; | |
16a0f3e7 EZ |
276 | } |
277 | ||
cc2c4da8 MK |
278 | /* Read memory at MEMADDR of length LEN and put the contents in |
279 | RETURN_VALUE. Return 0 if MEMADDR couldn't be read and non-zero | |
280 | if successful. */ | |
281 | ||
282 | int | |
283 | safe_read_memory_unsigned_integer (CORE_ADDR memaddr, int len, | |
284 | enum bfd_endian byte_order, | |
285 | ULONGEST *return_value) | |
286 | { | |
287 | gdb_byte buf[sizeof (ULONGEST)]; | |
288 | ||
289 | if (target_read_memory (memaddr, buf, len)) | |
290 | return 0; | |
291 | ||
292 | *return_value = extract_unsigned_integer (buf, len, byte_order); | |
293 | return 1; | |
294 | } | |
295 | ||
c906108c | 296 | LONGEST |
aff410f1 MS |
297 | read_memory_integer (CORE_ADDR memaddr, int len, |
298 | enum bfd_endian byte_order) | |
c906108c | 299 | { |
dfb65433 | 300 | gdb_byte buf[sizeof (LONGEST)]; |
c906108c SS |
301 | |
302 | read_memory (memaddr, buf, len); | |
e17a4113 | 303 | return extract_signed_integer (buf, len, byte_order); |
c906108c SS |
304 | } |
305 | ||
306 | ULONGEST | |
aff410f1 MS |
307 | read_memory_unsigned_integer (CORE_ADDR memaddr, int len, |
308 | enum bfd_endian byte_order) | |
c906108c | 309 | { |
dfb65433 | 310 | gdb_byte buf[sizeof (ULONGEST)]; |
c906108c SS |
311 | |
312 | read_memory (memaddr, buf, len); | |
e17a4113 | 313 | return extract_unsigned_integer (buf, len, byte_order); |
c906108c SS |
314 | } |
315 | ||
0865b04a YQ |
316 | LONGEST |
317 | read_code_integer (CORE_ADDR memaddr, int len, | |
318 | enum bfd_endian byte_order) | |
319 | { | |
320 | gdb_byte buf[sizeof (LONGEST)]; | |
321 | ||
322 | read_code (memaddr, buf, len); | |
323 | return extract_signed_integer (buf, len, byte_order); | |
324 | } | |
325 | ||
326 | ULONGEST | |
327 | read_code_unsigned_integer (CORE_ADDR memaddr, int len, | |
328 | enum bfd_endian byte_order) | |
329 | { | |
330 | gdb_byte buf[sizeof (ULONGEST)]; | |
331 | ||
332 | read_code (memaddr, buf, len); | |
333 | return extract_unsigned_integer (buf, len, byte_order); | |
334 | } | |
335 | ||
0d540cdf KD |
336 | CORE_ADDR |
337 | read_memory_typed_address (CORE_ADDR addr, struct type *type) | |
338 | { | |
df86565b | 339 | gdb_byte *buf = (gdb_byte *) alloca (type->length ()); |
c5504eaf | 340 | |
df86565b | 341 | read_memory (addr, buf, type->length ()); |
0d540cdf KD |
342 | return extract_typed_address (buf, type); |
343 | } | |
344 | ||
cb6f16cf SM |
345 | /* See gdbcore.h. */ |
346 | ||
c26e4683 | 347 | void |
aff410f1 | 348 | write_memory (CORE_ADDR memaddr, |
45aa4659 | 349 | const bfd_byte *myaddr, ssize_t len) |
c26e4683 JB |
350 | { |
351 | int status; | |
c5504eaf | 352 | |
00630ca8 | 353 | status = target_write_memory (memaddr, myaddr, len); |
c26e4683 | 354 | if (status != 0) |
d09f2c3f | 355 | memory_error (TARGET_XFER_E_IO, memaddr); |
c26e4683 JB |
356 | } |
357 | ||
ec517d10 SM |
358 | /* Notify interpreters and observers that INF's memory was changed. */ |
359 | ||
360 | static void | |
361 | notify_memory_changed (inferior *inf, CORE_ADDR addr, ssize_t len, | |
362 | const bfd_byte *data) | |
363 | { | |
364 | interps_notify_memory_changed (inf, addr, len, data); | |
365 | gdb::observers::memory_changed.notify (inf, addr, len, data); | |
366 | } | |
367 | ||
972daa01 YQ |
368 | /* Same as write_memory, but notify 'memory_changed' observers. */ |
369 | ||
370 | void | |
371 | write_memory_with_notification (CORE_ADDR memaddr, const bfd_byte *myaddr, | |
372 | ssize_t len) | |
373 | { | |
374 | write_memory (memaddr, myaddr, len); | |
ec517d10 | 375 | notify_memory_changed (current_inferior (), memaddr, len, myaddr); |
972daa01 YQ |
376 | } |
377 | ||
aff410f1 MS |
378 | /* Store VALUE at ADDR in the inferior as a LEN-byte unsigned |
379 | integer. */ | |
c26e4683 | 380 | void |
c5504eaf MS |
381 | write_memory_unsigned_integer (CORE_ADDR addr, int len, |
382 | enum bfd_endian byte_order, | |
e17a4113 | 383 | ULONGEST value) |
c26e4683 | 384 | { |
224c3ddb | 385 | gdb_byte *buf = (gdb_byte *) alloca (len); |
c5504eaf | 386 | |
e17a4113 | 387 | store_unsigned_integer (buf, len, byte_order, value); |
c26e4683 JB |
388 | write_memory (addr, buf, len); |
389 | } | |
390 | ||
aff410f1 MS |
391 | /* Store VALUE at ADDR in the inferior as a LEN-byte signed |
392 | integer. */ | |
c26e4683 | 393 | void |
c5504eaf MS |
394 | write_memory_signed_integer (CORE_ADDR addr, int len, |
395 | enum bfd_endian byte_order, | |
e17a4113 | 396 | LONGEST value) |
c26e4683 | 397 | { |
224c3ddb | 398 | gdb_byte *buf = (gdb_byte *) alloca (len); |
c5504eaf | 399 | |
e17a4113 | 400 | store_signed_integer (buf, len, byte_order, value); |
c26e4683 JB |
401 | write_memory (addr, buf, len); |
402 | } | |
c906108c SS |
403 | \f |
404 | /* The current default bfd target. Points to storage allocated for | |
405 | gnutarget_string. */ | |
4e7625fd | 406 | const char *gnutarget; |
c906108c SS |
407 | |
408 | /* Same thing, except it is "auto" not NULL for the default case. */ | |
e0700ba4 | 409 | static std::string gnutarget_string; |
920d2a44 AC |
410 | static void |
411 | show_gnutarget_string (struct ui_file *file, int from_tty, | |
aff410f1 MS |
412 | struct cmd_list_element *c, |
413 | const char *value) | |
920d2a44 | 414 | { |
6cb06a8c TT |
415 | gdb_printf (file, |
416 | _("The current BFD target is \"%s\".\n"), value); | |
920d2a44 | 417 | } |
c906108c | 418 | |
c906108c | 419 | static void |
eb4c3f4a | 420 | set_gnutarget_command (const char *ignore, int from_tty, |
aff410f1 | 421 | struct cmd_list_element *c) |
c906108c | 422 | { |
e0700ba4 SM |
423 | const char *gend = gnutarget_string.c_str () + gnutarget_string.size (); |
424 | gend = remove_trailing_whitespace (gnutarget_string.c_str (), gend); | |
425 | gnutarget_string | |
426 | = gnutarget_string.substr (0, gend - gnutarget_string.data ()); | |
44478ab3 | 427 | |
e0700ba4 | 428 | if (gnutarget_string == "auto") |
c906108c SS |
429 | gnutarget = NULL; |
430 | else | |
e0700ba4 | 431 | gnutarget = gnutarget_string.c_str (); |
c906108c SS |
432 | } |
433 | ||
44478ab3 TT |
434 | /* A completion function for "set gnutarget". */ |
435 | ||
eb3ff9a5 | 436 | static void |
6f937416 | 437 | complete_set_gnutarget (struct cmd_list_element *cmd, |
eb3ff9a5 | 438 | completion_tracker &tracker, |
6f937416 | 439 | const char *text, const char *word) |
44478ab3 TT |
440 | { |
441 | static const char **bfd_targets; | |
442 | ||
443 | if (bfd_targets == NULL) | |
444 | { | |
445 | int last; | |
446 | ||
447 | bfd_targets = bfd_target_list (); | |
448 | for (last = 0; bfd_targets[last] != NULL; ++last) | |
449 | ; | |
450 | ||
224c3ddb | 451 | bfd_targets = XRESIZEVEC (const char *, bfd_targets, last + 2); |
44478ab3 TT |
452 | bfd_targets[last] = "auto"; |
453 | bfd_targets[last + 1] = NULL; | |
454 | } | |
455 | ||
eb3ff9a5 | 456 | complete_on_enum (tracker, bfd_targets, text, word); |
44478ab3 TT |
457 | } |
458 | ||
c906108c SS |
459 | /* Set the gnutarget. */ |
460 | void | |
a121b7c1 | 461 | set_gnutarget (const char *newtarget) |
c906108c | 462 | { |
e0700ba4 | 463 | gnutarget_string = newtarget; |
c906108c SS |
464 | set_gnutarget_command (NULL, 0, NULL); |
465 | } | |
466 | ||
6c265988 | 467 | void _initialize_core (); |
c906108c | 468 | void |
6c265988 | 469 | _initialize_core () |
c906108c | 470 | { |
af7f8f52 SM |
471 | cmd_list_element *core_file_cmd |
472 | = add_cmd ("core-file", class_files, core_file_command, _("\ | |
1a966eab | 473 | Use FILE as core dump for examining memory and registers.\n\ |
0cab2f1e | 474 | Usage: core-file FILE\n\ |
c906108c | 475 | No arg means have no core file. This command has been superseded by the\n\ |
1a966eab | 476 | `target core' and `detach' commands."), &cmdlist); |
af7f8f52 | 477 | set_cmd_completer (core_file_cmd, filename_completer); |
c906108c | 478 | |
26c41df3 | 479 | |
af7f8f52 SM |
480 | set_show_commands set_show_gnutarget |
481 | = add_setshow_string_noescape_cmd ("gnutarget", class_files, | |
44478ab3 | 482 | &gnutarget_string, _("\ |
26c41df3 AC |
483 | Set the current BFD target."), _("\ |
484 | Show the current BFD target."), _("\ | |
485 | Use `set gnutarget auto' to specify automatic detection."), | |
44478ab3 TT |
486 | set_gnutarget_command, |
487 | show_gnutarget_string, | |
488 | &setlist, &showlist); | |
af7f8f52 | 489 | set_cmd_completer (set_show_gnutarget.set, complete_set_gnutarget); |
44478ab3 | 490 | |
5e84b7ee | 491 | add_alias_cmd ("g", set_show_gnutarget.set, class_files, 1, &setlist); |
c906108c SS |
492 | |
493 | if (getenv ("GNUTARGET")) | |
494 | set_gnutarget (getenv ("GNUTARGET")); | |
495 | else | |
496 | set_gnutarget ("auto"); | |
497 | } |