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Commit | Line | Data |
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c906108c | 1 | /* Remote target system call support. |
3666a048 | 2 | Copyright 1997-2021 Free Software Foundation, Inc. |
c906108c SS |
3 | Contributed by Cygnus Solutions. |
4 | ||
5 | This file is part of GDB. | |
6 | ||
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 | |
4744ac1b | 9 | the Free Software Foundation; either version 3 of the License, or |
c906108c SS |
10 | (at your option) any later version. |
11 | ||
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. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
4744ac1b | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
19 | |
20 | /* This interface isn't intended to be specific to any particular kind | |
21 | of remote (hardware, simulator, whatever). As such, support for it | |
22 | (e.g. sim/common/callback.c) should *not* live in the simulator source | |
23 | tree, nor should it live in the gdb source tree. K&R C must be | |
24 | supported. */ | |
25 | ||
6df01ab8 MF |
26 | /* This must come before any other includes. */ |
27 | #include "defs.h" | |
28 | ||
c906108c SS |
29 | #include "ansidecl.h" |
30 | #include "libiberty.h" | |
c906108c | 31 | #include <stdarg.h> |
c906108c | 32 | #include <stdio.h> |
c906108c | 33 | #include <stdlib.h> |
027e2a04 | 34 | #include <string.h> |
c906108c SS |
35 | #ifdef HAVE_UNISTD_H |
36 | #include <unistd.h> | |
37 | #endif | |
38 | #include <errno.h> | |
39 | #include <fcntl.h> | |
40 | #include <time.h> | |
41 | #include <sys/types.h> | |
42 | #include <sys/stat.h> | |
df68e12b | 43 | #include "sim/callback.h" |
c906108c SS |
44 | |
45 | #ifndef ENOSYS | |
46 | #define ENOSYS EINVAL | |
47 | #endif | |
48 | #ifndef ENAMETOOLONG | |
49 | #define ENAMETOOLONG EINVAL | |
50 | #endif | |
51 | ||
52 | /* Maximum length of a path name. */ | |
53 | #ifndef MAX_PATH_LEN | |
54 | #define MAX_PATH_LEN 1024 | |
55 | #endif | |
56 | ||
57 | /* When doing file read/writes, do this many bytes at a time. */ | |
58 | #define FILE_XFR_SIZE 4096 | |
59 | ||
60 | /* FIXME: for now, need to consider target word size. */ | |
61 | #define TWORD long | |
62 | #define TADDR unsigned long | |
63 | ||
027e2a04 HPN |
64 | /* Path to be prepended to syscalls with absolute paths, and to be |
65 | chdir:ed at startup, if not empty. */ | |
66 | char *simulator_sysroot = ""; | |
67 | ||
c906108c SS |
68 | /* Utility of cb_syscall to fetch a path name or other string from the target. |
69 | The result is 0 for success or a host errno value. */ | |
70 | ||
71712327 | 71 | int |
1a8a700e MF |
72 | cb_get_string (host_callback *cb, CB_SYSCALL *sc, char *buf, int buflen, |
73 | TADDR addr) | |
c906108c SS |
74 | { |
75 | char *p, *pend; | |
76 | ||
77 | for (p = buf, pend = buf + buflen; p < pend; ++p, ++addr) | |
78 | { | |
79 | /* No, it isn't expected that this would cause one transaction with | |
80 | the remote target for each byte. The target could send the | |
81 | path name along with the syscall request, and cache the file | |
82 | name somewhere (or otherwise tweak this as desired). */ | |
83 | unsigned int count = (*sc->read_mem) (cb, sc, addr, p, 1); | |
028f6515 | 84 | |
c906108c SS |
85 | if (count != 1) |
86 | return EINVAL; | |
87 | if (*p == 0) | |
88 | break; | |
89 | } | |
90 | if (p == pend) | |
91 | return ENAMETOOLONG; | |
92 | return 0; | |
93 | } | |
94 | ||
95 | /* Utility of cb_syscall to fetch a path name. | |
96 | The buffer is malloc'd and the address is stored in BUFP. | |
027e2a04 HPN |
97 | The result is that of get_string, but prepended with |
98 | simulator_sysroot if the string starts with '/'. | |
c906108c SS |
99 | If an error occurs, no buffer is left malloc'd. */ |
100 | ||
101 | static int | |
1a8a700e | 102 | get_path (host_callback *cb, CB_SYSCALL *sc, TADDR addr, char **bufp) |
c906108c SS |
103 | { |
104 | char *buf = xmalloc (MAX_PATH_LEN); | |
105 | int result; | |
027e2a04 | 106 | int sysroot_len = strlen (simulator_sysroot); |
c906108c | 107 | |
71712327 | 108 | result = cb_get_string (cb, sc, buf, MAX_PATH_LEN - sysroot_len, addr); |
c906108c | 109 | if (result == 0) |
027e2a04 HPN |
110 | { |
111 | /* Prepend absolute paths with simulator_sysroot. Relative paths | |
112 | are supposed to be relative to a chdir within that path, but at | |
113 | this point unknown where. */ | |
114 | if (simulator_sysroot[0] != '\0' && *buf == '/') | |
115 | { | |
116 | /* Considering expected rareness of syscalls with absolute | |
117 | file paths (compared to relative file paths and insn | |
118 | execution), it does not seem worthwhile to rearrange things | |
119 | to get rid of the string moves here; we'd need at least an | |
120 | extra call to check the initial '/' in the path. */ | |
121 | memmove (buf + sysroot_len, buf, sysroot_len); | |
122 | memcpy (buf, simulator_sysroot, sysroot_len); | |
123 | } | |
124 | ||
125 | *bufp = buf; | |
126 | } | |
c906108c SS |
127 | else |
128 | free (buf); | |
129 | return result; | |
130 | } | |
131 | ||
132 | /* Perform a system call on behalf of the target. */ | |
133 | ||
134 | CB_RC | |
1a8a700e | 135 | cb_syscall (host_callback *cb, CB_SYSCALL *sc) |
c906108c SS |
136 | { |
137 | TWORD result = 0, errcode = 0; | |
138 | ||
139 | if (sc->magic != CB_SYSCALL_MAGIC) | |
140 | abort (); | |
141 | ||
142 | switch (cb_target_to_host_syscall (cb, sc->func)) | |
143 | { | |
c906108c SS |
144 | case CB_SYS_argvlen : |
145 | { | |
146 | /* Compute how much space is required to store the argv,envp | |
147 | strings so that the program can allocate the space and then | |
148 | call SYS_argv to fetch the values. */ | |
fab6939b MF |
149 | int argc, envc, arglen, envlen; |
150 | char **argv = cb->argv; | |
151 | char **envp = cb->envp; | |
c906108c SS |
152 | |
153 | argc = arglen = 0; | |
154 | if (argv) | |
155 | { | |
156 | for ( ; argv[argc]; ++argc) | |
157 | arglen += strlen (argv[argc]) + 1; | |
158 | } | |
159 | envc = envlen = 0; | |
160 | if (envp) | |
161 | { | |
162 | for ( ; envp[envc]; ++envc) | |
163 | envlen += strlen (envp[envc]) + 1; | |
164 | } | |
fab6939b | 165 | result = arglen + 1 + envlen + 1; |
c906108c SS |
166 | break; |
167 | } | |
168 | ||
169 | case CB_SYS_argv : | |
170 | { | |
171 | /* Pointer to target's buffer. */ | |
172 | TADDR tbuf = sc->arg1; | |
173 | /* Buffer size. */ | |
174 | int bufsize = sc->arg2; | |
fab6939b | 175 | int written = 0; |
c906108c SS |
176 | /* Q is the target address of where all the strings go. */ |
177 | TADDR q; | |
fab6939b MF |
178 | int i, argc, envc, len, ret; |
179 | char **argv = cb->argv; | |
180 | char **envp = cb->envp; | |
181 | ||
182 | result = -1; | |
c906108c SS |
183 | |
184 | argc = 0; | |
185 | if (argv) | |
186 | { | |
187 | for ( ; argv[argc]; ++argc) | |
188 | { | |
fab6939b MF |
189 | len = strlen (argv[argc]) + 1; |
190 | if (written + len > bufsize) | |
191 | goto efault; | |
192 | ||
193 | ret = (*sc->write_mem) (cb, sc, tbuf + written, argv[argc], | |
194 | len); | |
195 | if (ret != len) | |
196 | goto einval; | |
197 | ||
198 | written += ret; | |
c906108c SS |
199 | } |
200 | } | |
fab6939b MF |
201 | /* Double NUL bytes indicates end of strings. */ |
202 | if (written >= bufsize) | |
203 | goto efault; | |
204 | if ((*sc->write_mem) (cb, sc, tbuf + written, "", 1) != 1) | |
205 | goto einval; | |
206 | ++written; | |
207 | ||
c906108c SS |
208 | envc = 0; |
209 | if (envp) | |
210 | { | |
211 | for ( ; envp[envc]; ++envc) | |
212 | { | |
fab6939b MF |
213 | len = strlen (envp[envc]) + 1; |
214 | if (written + len > bufsize) | |
215 | goto efault; | |
216 | ||
217 | ret = (*sc->write_mem) (cb, sc, tbuf + written, envp[envc], | |
218 | len); | |
219 | if (ret != len) | |
220 | goto einval; | |
221 | written += ret; | |
c906108c SS |
222 | } |
223 | } | |
fab6939b MF |
224 | /* Double NUL bytes indicates end of strings. */ |
225 | if (written >= bufsize) | |
226 | goto efault; | |
227 | if ((*sc->write_mem) (cb, sc, tbuf + written, "", 1) != 1) | |
228 | goto einval; | |
229 | ||
c906108c SS |
230 | result = argc; |
231 | sc->result2 = envc; | |
232 | break; | |
fab6939b MF |
233 | |
234 | efault: | |
235 | errcode = EFAULT; | |
236 | goto FinishSyscall; | |
237 | ||
238 | einval: | |
239 | errcode = EINVAL; | |
240 | goto FinishSyscall; | |
c906108c | 241 | } |
c906108c SS |
242 | |
243 | case CB_SYS_exit : | |
7d5c6c43 | 244 | /* Caller must catch and handle; see sim_syscall as an example. */ |
c906108c SS |
245 | break; |
246 | ||
247 | case CB_SYS_open : | |
248 | { | |
249 | char *path; | |
250 | ||
251 | errcode = get_path (cb, sc, sc->arg1, &path); | |
252 | if (errcode != 0) | |
253 | { | |
254 | result = -1; | |
255 | goto FinishSyscall; | |
256 | } | |
257 | result = (*cb->open) (cb, path, sc->arg2 /*, sc->arg3*/); | |
258 | free (path); | |
259 | if (result < 0) | |
260 | goto ErrorFinish; | |
261 | } | |
262 | break; | |
263 | ||
264 | case CB_SYS_close : | |
265 | result = (*cb->close) (cb, sc->arg1); | |
266 | if (result < 0) | |
267 | goto ErrorFinish; | |
268 | break; | |
269 | ||
270 | case CB_SYS_read : | |
271 | { | |
272 | /* ??? Perfect handling of error conditions may require only one | |
273 | call to cb->read. One can't assume all the data is | |
274 | contiguously stored in host memory so that would require | |
275 | malloc'ing/free'ing the space. Maybe later. */ | |
276 | char buf[FILE_XFR_SIZE]; | |
277 | int fd = sc->arg1; | |
278 | TADDR addr = sc->arg2; | |
279 | size_t count = sc->arg3; | |
280 | size_t bytes_read = 0; | |
281 | int bytes_written; | |
282 | ||
283 | while (count > 0) | |
284 | { | |
b981d709 | 285 | if (cb_is_stdin (cb, fd)) |
c906108c SS |
286 | result = (int) (*cb->read_stdin) (cb, buf, |
287 | (count < FILE_XFR_SIZE | |
288 | ? count : FILE_XFR_SIZE)); | |
289 | else | |
290 | result = (int) (*cb->read) (cb, fd, buf, | |
291 | (count < FILE_XFR_SIZE | |
292 | ? count : FILE_XFR_SIZE)); | |
293 | if (result == -1) | |
294 | goto ErrorFinish; | |
295 | if (result == 0) /* EOF */ | |
296 | break; | |
297 | bytes_written = (*sc->write_mem) (cb, sc, addr, buf, result); | |
298 | if (bytes_written != result) | |
299 | { | |
300 | result = -1; | |
301 | errcode = EINVAL; | |
302 | goto FinishSyscall; | |
303 | } | |
304 | bytes_read += result; | |
305 | count -= result; | |
306 | addr += result; | |
307 | /* If this is a short read, don't go back for more */ | |
308 | if (result != FILE_XFR_SIZE) | |
309 | break; | |
310 | } | |
311 | result = bytes_read; | |
312 | } | |
313 | break; | |
314 | ||
315 | case CB_SYS_write : | |
316 | { | |
317 | /* ??? Perfect handling of error conditions may require only one | |
318 | call to cb->write. One can't assume all the data is | |
319 | contiguously stored in host memory so that would require | |
320 | malloc'ing/free'ing the space. Maybe later. */ | |
321 | char buf[FILE_XFR_SIZE]; | |
322 | int fd = sc->arg1; | |
323 | TADDR addr = sc->arg2; | |
324 | size_t count = sc->arg3; | |
325 | int bytes_read; | |
326 | size_t bytes_written = 0; | |
327 | ||
328 | while (count > 0) | |
329 | { | |
330 | int bytes_to_read = count < FILE_XFR_SIZE ? count : FILE_XFR_SIZE; | |
331 | bytes_read = (*sc->read_mem) (cb, sc, addr, buf, bytes_to_read); | |
332 | if (bytes_read != bytes_to_read) | |
333 | { | |
334 | result = -1; | |
335 | errcode = EINVAL; | |
336 | goto FinishSyscall; | |
337 | } | |
34b47c38 | 338 | if (cb_is_stdout (cb, fd)) |
c906108c SS |
339 | { |
340 | result = (int) (*cb->write_stdout) (cb, buf, bytes_read); | |
341 | (*cb->flush_stdout) (cb); | |
342 | } | |
34b47c38 | 343 | else if (cb_is_stderr (cb, fd)) |
c906108c SS |
344 | { |
345 | result = (int) (*cb->write_stderr) (cb, buf, bytes_read); | |
346 | (*cb->flush_stderr) (cb); | |
347 | } | |
348 | else | |
349 | result = (int) (*cb->write) (cb, fd, buf, bytes_read); | |
350 | if (result == -1) | |
351 | goto ErrorFinish; | |
352 | bytes_written += result; | |
353 | count -= result; | |
354 | addr += result; | |
355 | } | |
356 | result = bytes_written; | |
357 | } | |
358 | break; | |
359 | ||
360 | case CB_SYS_lseek : | |
361 | { | |
362 | int fd = sc->arg1; | |
363 | unsigned long offset = sc->arg2; | |
364 | int whence = sc->arg3; | |
365 | ||
366 | result = (*cb->lseek) (cb, fd, offset, whence); | |
367 | if (result < 0) | |
368 | goto ErrorFinish; | |
369 | } | |
370 | break; | |
371 | ||
372 | case CB_SYS_unlink : | |
373 | { | |
374 | char *path; | |
375 | ||
376 | errcode = get_path (cb, sc, sc->arg1, &path); | |
377 | if (errcode != 0) | |
378 | { | |
379 | result = -1; | |
380 | goto FinishSyscall; | |
381 | } | |
382 | result = (*cb->unlink) (cb, path); | |
383 | free (path); | |
384 | if (result < 0) | |
385 | goto ErrorFinish; | |
386 | } | |
387 | break; | |
388 | ||
5d945fec HPN |
389 | case CB_SYS_truncate : |
390 | { | |
391 | char *path; | |
392 | long len = sc->arg2; | |
393 | ||
394 | errcode = get_path (cb, sc, sc->arg1, &path); | |
395 | if (errcode != 0) | |
396 | { | |
397 | result = -1; | |
398 | errcode = EFAULT; | |
399 | goto FinishSyscall; | |
400 | } | |
401 | result = (*cb->truncate) (cb, path, len); | |
402 | free (path); | |
403 | if (result < 0) | |
404 | goto ErrorFinish; | |
405 | } | |
406 | break; | |
407 | ||
408 | case CB_SYS_ftruncate : | |
409 | { | |
410 | int fd = sc->arg1; | |
411 | long len = sc->arg2; | |
412 | ||
413 | result = (*cb->ftruncate) (cb, fd, len); | |
414 | if (result < 0) | |
415 | goto ErrorFinish; | |
416 | } | |
417 | break; | |
418 | ||
82571856 HPN |
419 | case CB_SYS_rename : |
420 | { | |
421 | char *path1, *path2; | |
422 | ||
423 | errcode = get_path (cb, sc, sc->arg1, &path1); | |
424 | if (errcode != 0) | |
425 | { | |
426 | result = -1; | |
427 | errcode = EFAULT; | |
428 | goto FinishSyscall; | |
429 | } | |
430 | errcode = get_path (cb, sc, sc->arg2, &path2); | |
431 | if (errcode != 0) | |
432 | { | |
433 | result = -1; | |
434 | errcode = EFAULT; | |
435 | free (path1); | |
436 | goto FinishSyscall; | |
437 | } | |
438 | result = (*cb->rename) (cb, path1, path2); | |
439 | free (path1); | |
440 | free (path2); | |
441 | if (result < 0) | |
442 | goto ErrorFinish; | |
443 | } | |
444 | break; | |
445 | ||
c906108c SS |
446 | case CB_SYS_stat : |
447 | { | |
448 | char *path,*buf; | |
449 | int buflen; | |
450 | struct stat statbuf; | |
451 | TADDR addr = sc->arg2; | |
452 | ||
453 | errcode = get_path (cb, sc, sc->arg1, &path); | |
454 | if (errcode != 0) | |
455 | { | |
456 | result = -1; | |
457 | goto FinishSyscall; | |
458 | } | |
2d7bb758 | 459 | result = (*cb->to_stat) (cb, path, &statbuf); |
c906108c SS |
460 | free (path); |
461 | if (result < 0) | |
462 | goto ErrorFinish; | |
463 | buflen = cb_host_to_target_stat (cb, NULL, NULL); | |
464 | buf = xmalloc (buflen); | |
465 | if (cb_host_to_target_stat (cb, &statbuf, buf) != buflen) | |
466 | { | |
467 | /* The translation failed. This is due to an internal | |
468 | host program error, not the target's fault. */ | |
469 | free (buf); | |
470 | errcode = ENOSYS; | |
471 | result = -1; | |
472 | goto FinishSyscall; | |
473 | } | |
474 | if ((*sc->write_mem) (cb, sc, addr, buf, buflen) != buflen) | |
475 | { | |
476 | free (buf); | |
477 | errcode = EINVAL; | |
478 | result = -1; | |
479 | goto FinishSyscall; | |
480 | } | |
481 | free (buf); | |
482 | } | |
483 | break; | |
484 | ||
485 | case CB_SYS_fstat : | |
486 | { | |
487 | char *buf; | |
488 | int buflen; | |
489 | struct stat statbuf; | |
490 | TADDR addr = sc->arg2; | |
491 | ||
2d7bb758 | 492 | result = (*cb->to_fstat) (cb, sc->arg1, &statbuf); |
c906108c SS |
493 | if (result < 0) |
494 | goto ErrorFinish; | |
495 | buflen = cb_host_to_target_stat (cb, NULL, NULL); | |
496 | buf = xmalloc (buflen); | |
497 | if (cb_host_to_target_stat (cb, &statbuf, buf) != buflen) | |
498 | { | |
499 | /* The translation failed. This is due to an internal | |
500 | host program error, not the target's fault. */ | |
501 | free (buf); | |
502 | errcode = ENOSYS; | |
503 | result = -1; | |
504 | goto FinishSyscall; | |
505 | } | |
506 | if ((*sc->write_mem) (cb, sc, addr, buf, buflen) != buflen) | |
507 | { | |
508 | free (buf); | |
509 | errcode = EINVAL; | |
510 | result = -1; | |
511 | goto FinishSyscall; | |
512 | } | |
513 | free (buf); | |
514 | } | |
515 | break; | |
516 | ||
0d3cd463 HPN |
517 | case CB_SYS_lstat : |
518 | { | |
519 | char *path, *buf; | |
520 | int buflen; | |
521 | struct stat statbuf; | |
522 | TADDR addr = sc->arg2; | |
523 | ||
524 | errcode = get_path (cb, sc, sc->arg1, &path); | |
525 | if (errcode != 0) | |
526 | { | |
527 | result = -1; | |
528 | goto FinishSyscall; | |
529 | } | |
2d7bb758 | 530 | result = (*cb->to_lstat) (cb, path, &statbuf); |
0d3cd463 HPN |
531 | free (path); |
532 | if (result < 0) | |
533 | goto ErrorFinish; | |
534 | ||
535 | buflen = cb_host_to_target_stat (cb, NULL, NULL); | |
536 | buf = xmalloc (buflen); | |
537 | if (cb_host_to_target_stat (cb, &statbuf, buf) != buflen) | |
538 | { | |
539 | /* The translation failed. This is due to an internal | |
540 | host program error, not the target's fault. | |
541 | Unfortunately, it's hard to test this case, so there's no | |
542 | test-case for this execution path. */ | |
543 | free (buf); | |
544 | errcode = ENOSYS; | |
545 | result = -1; | |
546 | goto FinishSyscall; | |
547 | } | |
548 | ||
549 | if ((*sc->write_mem) (cb, sc, addr, buf, buflen) != buflen) | |
550 | { | |
551 | free (buf); | |
552 | errcode = EINVAL; | |
553 | result = -1; | |
554 | goto FinishSyscall; | |
555 | } | |
556 | ||
557 | free (buf); | |
558 | } | |
559 | break; | |
560 | ||
97f669ed HPN |
561 | case CB_SYS_pipe : |
562 | { | |
563 | int p[2]; | |
564 | char *target_p = xcalloc (1, cb->target_sizeof_int * 2); | |
565 | ||
566 | result = (*cb->pipe) (cb, p); | |
567 | if (result != 0) | |
568 | goto ErrorFinish; | |
569 | ||
570 | cb_store_target_endian (cb, target_p, cb->target_sizeof_int, p[0]); | |
571 | cb_store_target_endian (cb, target_p + cb->target_sizeof_int, | |
572 | cb->target_sizeof_int, p[1]); | |
573 | if ((*sc->write_mem) (cb, sc, sc->arg1, target_p, | |
574 | cb->target_sizeof_int * 2) | |
575 | != cb->target_sizeof_int * 2) | |
576 | { | |
577 | /* Close the pipe fd:s. */ | |
578 | (*cb->close) (cb, p[0]); | |
579 | (*cb->close) (cb, p[1]); | |
580 | errcode = EFAULT; | |
581 | result = -1; | |
582 | } | |
583 | ||
584 | free (target_p); | |
585 | } | |
586 | break; | |
587 | ||
7da5cf78 | 588 | case CB_SYS_getpid: |
c45cffdb MF |
589 | /* POSIX says getpid always succeeds. */ |
590 | result = (*cb->getpid) (cb); | |
7da5cf78 MF |
591 | break; |
592 | ||
d394a6ef MF |
593 | case CB_SYS_kill: |
594 | /* If killing self, leave it to the caller to process so it can send the | |
595 | signal to the engine. */ | |
596 | if (sc->arg1 == (*cb->getpid) (cb)) | |
597 | { | |
598 | result = -1; | |
599 | errcode = ENOSYS; | |
600 | } | |
601 | else | |
602 | { | |
603 | int signum = cb_target_to_host_signal (cb, sc->arg2); | |
604 | ||
605 | result = (*cb->kill) (cb, sc->arg1, signum); | |
606 | cb->last_errno = errno; | |
607 | goto ErrorFinish; | |
608 | } | |
609 | break; | |
610 | ||
c906108c SS |
611 | case CB_SYS_time : |
612 | { | |
613 | /* FIXME: May wish to change CB_SYS_time to something else. | |
614 | We might also want gettimeofday or times, but if system calls | |
615 | can be built on others, we can keep the number we have to support | |
616 | here down. */ | |
00330cd1 | 617 | time_t t = (*cb->time) (cb); |
c906108c SS |
618 | result = t; |
619 | /* It is up to target code to process the argument to time(). */ | |
620 | } | |
621 | break; | |
622 | ||
623 | case CB_SYS_chdir : | |
624 | case CB_SYS_chmod : | |
625 | case CB_SYS_utime : | |
626 | /* fall through for now */ | |
627 | ||
628 | default : | |
629 | result = -1; | |
630 | errcode = ENOSYS; | |
631 | break; | |
632 | } | |
633 | ||
634 | FinishSyscall: | |
635 | sc->result = result; | |
636 | if (errcode == 0) | |
637 | sc->errcode = 0; | |
638 | else | |
639 | sc->errcode = cb_host_to_target_errno (cb, errcode); | |
640 | return CB_RC_OK; | |
641 | ||
642 | ErrorFinish: | |
643 | sc->result = result; | |
644 | sc->errcode = (*cb->get_errno) (cb); | |
645 | return CB_RC_OK; | |
646 | } |