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Commit | Line | Data |
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84778508 BS |
1 | /* |
2 | * BSD syscalls | |
3 | * | |
4 | * Copyright (c) 2003 - 2008 Fabrice Bellard | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
8167ee88 | 17 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
84778508 | 18 | */ |
2231197c | 19 | #include "qemu/osdep.h" |
c40e13e1 EM |
20 | #include "qemu/cutils.h" |
21 | #include "qemu/path.h" | |
84778508 | 22 | #include <sys/syscall.h> |
544f4f0b | 23 | #include <sys/param.h> |
78cfb07f | 24 | #include <sys/sysctl.h> |
84778508 BS |
25 | #include <utime.h> |
26 | ||
27 | #include "qemu.h" | |
28 | #include "qemu-common.h" | |
c36f7a64 | 29 | #include "user/syscall-trace.h" |
84778508 BS |
30 | |
31 | //#define DEBUG | |
32 | ||
33 | static abi_ulong target_brk; | |
34 | static abi_ulong target_original_brk; | |
35 | ||
78cfb07f JL |
36 | static inline abi_long get_errno(abi_long ret) |
37 | { | |
38 | if (ret == -1) | |
39 | /* XXX need to translate host -> target errnos here */ | |
40 | return -(errno); | |
41 | else | |
42 | return ret; | |
43 | } | |
44 | ||
84778508 BS |
45 | #define target_to_host_bitmask(x, tbl) (x) |
46 | ||
78cfb07f JL |
47 | static inline int is_error(abi_long ret) |
48 | { | |
49 | return (abi_ulong)ret >= (abi_ulong)(-4096); | |
50 | } | |
51 | ||
84778508 BS |
52 | void target_set_brk(abi_ulong new_brk) |
53 | { | |
54 | target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk); | |
55 | } | |
56 | ||
78cfb07f JL |
57 | /* do_obreak() must return target errnos. */ |
58 | static abi_long do_obreak(abi_ulong new_brk) | |
59 | { | |
60 | abi_ulong brk_page; | |
61 | abi_long mapped_addr; | |
62 | int new_alloc_size; | |
63 | ||
64 | if (!new_brk) | |
65 | return 0; | |
66 | if (new_brk < target_original_brk) | |
67 | return -TARGET_EINVAL; | |
68 | ||
69 | brk_page = HOST_PAGE_ALIGN(target_brk); | |
70 | ||
71 | /* If the new brk is less than this, set it and we're done... */ | |
72 | if (new_brk < brk_page) { | |
73 | target_brk = new_brk; | |
74 | return 0; | |
75 | } | |
76 | ||
77 | /* We need to allocate more memory after the brk... */ | |
78 | new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1); | |
79 | mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size, | |
80 | PROT_READ|PROT_WRITE, | |
81 | MAP_ANON|MAP_FIXED|MAP_PRIVATE, -1, 0)); | |
82 | ||
83 | if (!is_error(mapped_addr)) | |
84 | target_brk = new_brk; | |
85 | else | |
86 | return mapped_addr; | |
87 | ||
88 | return 0; | |
89 | } | |
90 | ||
91 | #if defined(TARGET_I386) | |
92 | static abi_long do_freebsd_sysarch(CPUX86State *env, int op, abi_ulong parms) | |
93 | { | |
94 | abi_long ret = 0; | |
95 | abi_ulong val; | |
96 | int idx; | |
97 | ||
98 | switch(op) { | |
99 | #ifdef TARGET_ABI32 | |
100 | case TARGET_FREEBSD_I386_SET_GSBASE: | |
101 | case TARGET_FREEBSD_I386_SET_FSBASE: | |
102 | if (op == TARGET_FREEBSD_I386_SET_GSBASE) | |
103 | #else | |
104 | case TARGET_FREEBSD_AMD64_SET_GSBASE: | |
105 | case TARGET_FREEBSD_AMD64_SET_FSBASE: | |
106 | if (op == TARGET_FREEBSD_AMD64_SET_GSBASE) | |
107 | #endif | |
108 | idx = R_GS; | |
109 | else | |
110 | idx = R_FS; | |
111 | if (get_user(val, parms, abi_ulong)) | |
112 | return -TARGET_EFAULT; | |
113 | cpu_x86_load_seg(env, idx, 0); | |
114 | env->segs[idx].base = val; | |
115 | break; | |
116 | #ifdef TARGET_ABI32 | |
117 | case TARGET_FREEBSD_I386_GET_GSBASE: | |
118 | case TARGET_FREEBSD_I386_GET_FSBASE: | |
119 | if (op == TARGET_FREEBSD_I386_GET_GSBASE) | |
120 | #else | |
121 | case TARGET_FREEBSD_AMD64_GET_GSBASE: | |
122 | case TARGET_FREEBSD_AMD64_GET_FSBASE: | |
123 | if (op == TARGET_FREEBSD_AMD64_GET_GSBASE) | |
124 | #endif | |
125 | idx = R_GS; | |
126 | else | |
127 | idx = R_FS; | |
128 | val = env->segs[idx].base; | |
129 | if (put_user(val, parms, abi_ulong)) | |
130 | return -TARGET_EFAULT; | |
131 | break; | |
132 | /* XXX handle the others... */ | |
133 | default: | |
134 | ret = -TARGET_EINVAL; | |
135 | break; | |
136 | } | |
137 | return ret; | |
138 | } | |
139 | #endif | |
140 | ||
141 | #ifdef TARGET_SPARC | |
142 | static abi_long do_freebsd_sysarch(void *env, int op, abi_ulong parms) | |
143 | { | |
144 | /* XXX handle | |
145 | * TARGET_FREEBSD_SPARC_UTRAP_INSTALL, | |
146 | * TARGET_FREEBSD_SPARC_SIGTRAMP_INSTALL | |
147 | */ | |
148 | return -TARGET_EINVAL; | |
149 | } | |
150 | #endif | |
151 | ||
152 | #ifdef __FreeBSD__ | |
153 | /* | |
154 | * XXX this uses the undocumented oidfmt interface to find the kind of | |
155 | * a requested sysctl, see /sys/kern/kern_sysctl.c:sysctl_sysctl_oidfmt() | |
156 | * (this is mostly copied from src/sbin/sysctl/sysctl.c) | |
157 | */ | |
158 | static int | |
159 | oidfmt(int *oid, int len, char *fmt, uint32_t *kind) | |
160 | { | |
161 | int qoid[CTL_MAXNAME+2]; | |
162 | uint8_t buf[BUFSIZ]; | |
163 | int i; | |
164 | size_t j; | |
165 | ||
166 | qoid[0] = 0; | |
167 | qoid[1] = 4; | |
168 | memcpy(qoid + 2, oid, len * sizeof(int)); | |
169 | ||
170 | j = sizeof(buf); | |
171 | i = sysctl(qoid, len + 2, buf, &j, 0, 0); | |
172 | if (i) | |
173 | return i; | |
174 | ||
175 | if (kind) | |
176 | *kind = *(uint32_t *)buf; | |
177 | ||
178 | if (fmt) | |
179 | strcpy(fmt, (char *)(buf + sizeof(uint32_t))); | |
180 | return (0); | |
181 | } | |
182 | ||
183 | /* | |
184 | * try and convert sysctl return data for the target. | |
185 | * XXX doesn't handle CTLTYPE_OPAQUE and CTLTYPE_STRUCT. | |
186 | */ | |
187 | static int sysctl_oldcvt(void *holdp, size_t holdlen, uint32_t kind) | |
188 | { | |
189 | switch (kind & CTLTYPE) { | |
190 | case CTLTYPE_INT: | |
191 | case CTLTYPE_UINT: | |
192 | *(uint32_t *)holdp = tswap32(*(uint32_t *)holdp); | |
193 | break; | |
194 | #ifdef TARGET_ABI32 | |
195 | case CTLTYPE_LONG: | |
196 | case CTLTYPE_ULONG: | |
197 | *(uint32_t *)holdp = tswap32(*(long *)holdp); | |
198 | break; | |
199 | #else | |
200 | case CTLTYPE_LONG: | |
201 | *(uint64_t *)holdp = tswap64(*(long *)holdp); | |
202 | case CTLTYPE_ULONG: | |
203 | *(uint64_t *)holdp = tswap64(*(unsigned long *)holdp); | |
204 | break; | |
205 | #endif | |
e6a3ee5f EM |
206 | #ifdef CTLTYPE_U64 |
207 | case CTLTYPE_S64: | |
6ea8430d | 208 | case CTLTYPE_U64: |
e6a3ee5f EM |
209 | #else |
210 | case CTLTYPE_QUAD: | |
6ea8430d | 211 | #endif |
78cfb07f JL |
212 | *(uint64_t *)holdp = tswap64(*(uint64_t *)holdp); |
213 | break; | |
214 | case CTLTYPE_STRING: | |
215 | break; | |
216 | default: | |
217 | /* XXX unhandled */ | |
218 | return -1; | |
219 | } | |
220 | return 0; | |
221 | } | |
222 | ||
223 | /* XXX this needs to be emulated on non-FreeBSD hosts... */ | |
224 | static abi_long do_freebsd_sysctl(abi_ulong namep, int32_t namelen, abi_ulong oldp, | |
225 | abi_ulong oldlenp, abi_ulong newp, abi_ulong newlen) | |
226 | { | |
227 | abi_long ret; | |
228 | void *hnamep, *holdp, *hnewp = NULL; | |
229 | size_t holdlen; | |
230 | abi_ulong oldlen = 0; | |
7267c094 | 231 | int32_t *snamep = g_malloc(sizeof(int32_t) * namelen), *p, *q, i; |
78cfb07f JL |
232 | uint32_t kind = 0; |
233 | ||
234 | if (oldlenp) | |
235 | get_user_ual(oldlen, oldlenp); | |
236 | if (!(hnamep = lock_user(VERIFY_READ, namep, namelen, 1))) | |
237 | return -TARGET_EFAULT; | |
238 | if (newp && !(hnewp = lock_user(VERIFY_READ, newp, newlen, 1))) | |
239 | return -TARGET_EFAULT; | |
240 | if (!(holdp = lock_user(VERIFY_WRITE, oldp, oldlen, 0))) | |
241 | return -TARGET_EFAULT; | |
242 | holdlen = oldlen; | |
243 | for (p = hnamep, q = snamep, i = 0; i < namelen; p++, i++) | |
244 | *q++ = tswap32(*p); | |
245 | oidfmt(snamep, namelen, NULL, &kind); | |
246 | /* XXX swap hnewp */ | |
247 | ret = get_errno(sysctl(snamep, namelen, holdp, &holdlen, hnewp, newlen)); | |
248 | if (!ret) | |
249 | sysctl_oldcvt(holdp, holdlen, kind); | |
250 | put_user_ual(holdlen, oldlenp); | |
251 | unlock_user(hnamep, namep, 0); | |
252 | unlock_user(holdp, oldp, holdlen); | |
253 | if (hnewp) | |
254 | unlock_user(hnewp, newp, 0); | |
7267c094 | 255 | g_free(snamep); |
78cfb07f JL |
256 | return ret; |
257 | } | |
258 | #endif | |
259 | ||
260 | /* FIXME | |
261 | * lock_iovec()/unlock_iovec() have a return code of 0 for success where | |
262 | * other lock functions have a return code of 0 for failure. | |
263 | */ | |
264 | static abi_long lock_iovec(int type, struct iovec *vec, abi_ulong target_addr, | |
265 | int count, int copy) | |
266 | { | |
267 | struct target_iovec *target_vec; | |
268 | abi_ulong base; | |
269 | int i; | |
270 | ||
271 | target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1); | |
272 | if (!target_vec) | |
273 | return -TARGET_EFAULT; | |
274 | for(i = 0;i < count; i++) { | |
275 | base = tswapl(target_vec[i].iov_base); | |
276 | vec[i].iov_len = tswapl(target_vec[i].iov_len); | |
277 | if (vec[i].iov_len != 0) { | |
278 | vec[i].iov_base = lock_user(type, base, vec[i].iov_len, copy); | |
279 | /* Don't check lock_user return value. We must call writev even | |
280 | if a element has invalid base address. */ | |
281 | } else { | |
282 | /* zero length pointer is ignored */ | |
283 | vec[i].iov_base = NULL; | |
284 | } | |
285 | } | |
286 | unlock_user (target_vec, target_addr, 0); | |
287 | return 0; | |
288 | } | |
289 | ||
290 | static abi_long unlock_iovec(struct iovec *vec, abi_ulong target_addr, | |
291 | int count, int copy) | |
292 | { | |
293 | struct target_iovec *target_vec; | |
294 | abi_ulong base; | |
295 | int i; | |
296 | ||
297 | target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1); | |
298 | if (!target_vec) | |
299 | return -TARGET_EFAULT; | |
300 | for(i = 0;i < count; i++) { | |
301 | if (target_vec[i].iov_base) { | |
302 | base = tswapl(target_vec[i].iov_base); | |
303 | unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0); | |
304 | } | |
305 | } | |
306 | unlock_user (target_vec, target_addr, 0); | |
307 | ||
308 | return 0; | |
309 | } | |
310 | ||
84778508 BS |
311 | /* do_syscall() should always have a single exit point at the end so |
312 | that actions, such as logging of syscall results, can be performed. | |
313 | All errnos that do_syscall() returns must be -TARGET_<errcode>. */ | |
314 | abi_long do_freebsd_syscall(void *cpu_env, int num, abi_long arg1, | |
315 | abi_long arg2, abi_long arg3, abi_long arg4, | |
78cfb07f JL |
316 | abi_long arg5, abi_long arg6, abi_long arg7, |
317 | abi_long arg8) | |
84778508 | 318 | { |
29a0af61 | 319 | CPUState *cpu = env_cpu(cpu_env); |
84778508 BS |
320 | abi_long ret; |
321 | void *p; | |
322 | ||
323 | #ifdef DEBUG | |
324 | gemu_log("freebsd syscall %d\n", num); | |
325 | #endif | |
c36f7a64 EC |
326 | record_syscall_start(cpu, num, arg1, arg2, arg3, arg4, arg5, arg6, 0, 0); |
327 | ||
84778508 BS |
328 | if(do_strace) |
329 | print_freebsd_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6); | |
330 | ||
331 | switch(num) { | |
332 | case TARGET_FREEBSD_NR_exit: | |
4cc600d2 | 333 | #ifdef CONFIG_GPROF |
84778508 BS |
334 | _mcleanup(); |
335 | #endif | |
336 | gdb_exit(cpu_env, arg1); | |
8634d77b | 337 | qemu_plugin_atexit_cb(); |
84778508 BS |
338 | /* XXX: should free thread stack and CPU env */ |
339 | _exit(arg1); | |
340 | ret = 0; /* avoid warning */ | |
341 | break; | |
342 | case TARGET_FREEBSD_NR_read: | |
343 | if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0))) | |
344 | goto efault; | |
345 | ret = get_errno(read(arg1, p, arg3)); | |
346 | unlock_user(p, arg2, ret); | |
347 | break; | |
348 | case TARGET_FREEBSD_NR_write: | |
349 | if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1))) | |
350 | goto efault; | |
351 | ret = get_errno(write(arg1, p, arg3)); | |
352 | unlock_user(p, arg2, 0); | |
353 | break; | |
78cfb07f JL |
354 | case TARGET_FREEBSD_NR_writev: |
355 | { | |
356 | int count = arg3; | |
357 | struct iovec *vec; | |
358 | ||
359 | vec = alloca(count * sizeof(struct iovec)); | |
360 | if (lock_iovec(VERIFY_READ, vec, arg2, count, 1) < 0) | |
361 | goto efault; | |
362 | ret = get_errno(writev(arg1, vec, count)); | |
363 | unlock_iovec(vec, arg2, count, 0); | |
364 | } | |
365 | break; | |
84778508 BS |
366 | case TARGET_FREEBSD_NR_open: |
367 | if (!(p = lock_user_string(arg1))) | |
368 | goto efault; | |
369 | ret = get_errno(open(path(p), | |
370 | target_to_host_bitmask(arg2, fcntl_flags_tbl), | |
371 | arg3)); | |
372 | unlock_user(p, arg1, 0); | |
373 | break; | |
374 | case TARGET_FREEBSD_NR_mmap: | |
375 | ret = get_errno(target_mmap(arg1, arg2, arg3, | |
376 | target_to_host_bitmask(arg4, mmap_flags_tbl), | |
377 | arg5, | |
378 | arg6)); | |
379 | break; | |
380 | case TARGET_FREEBSD_NR_mprotect: | |
381 | ret = get_errno(target_mprotect(arg1, arg2, arg3)); | |
382 | break; | |
78cfb07f JL |
383 | case TARGET_FREEBSD_NR_break: |
384 | ret = do_obreak(arg1); | |
385 | break; | |
386 | #ifdef __FreeBSD__ | |
387 | case TARGET_FREEBSD_NR___sysctl: | |
388 | ret = do_freebsd_sysctl(arg1, arg2, arg3, arg4, arg5, arg6); | |
389 | break; | |
390 | #endif | |
391 | case TARGET_FREEBSD_NR_sysarch: | |
392 | ret = do_freebsd_sysarch(cpu_env, arg1, arg2); | |
393 | break; | |
84778508 BS |
394 | case TARGET_FREEBSD_NR_syscall: |
395 | case TARGET_FREEBSD_NR___syscall: | |
78cfb07f | 396 | ret = do_freebsd_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,arg7,arg8,0); |
84778508 BS |
397 | break; |
398 | default: | |
78cfb07f | 399 | ret = get_errno(syscall(num, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8)); |
84778508 BS |
400 | break; |
401 | } | |
402 | fail: | |
403 | #ifdef DEBUG | |
404 | gemu_log(" = %ld\n", ret); | |
405 | #endif | |
406 | if (do_strace) | |
407 | print_freebsd_syscall_ret(num, ret); | |
c36f7a64 EC |
408 | |
409 | record_syscall_return(cpu, num, ret); | |
84778508 BS |
410 | return ret; |
411 | efault: | |
412 | ret = -TARGET_EFAULT; | |
413 | goto fail; | |
414 | } | |
415 | ||
416 | abi_long do_netbsd_syscall(void *cpu_env, int num, abi_long arg1, | |
417 | abi_long arg2, abi_long arg3, abi_long arg4, | |
418 | abi_long arg5, abi_long arg6) | |
419 | { | |
29a0af61 | 420 | CPUState *cpu = env_cpu(cpu_env); |
84778508 BS |
421 | abi_long ret; |
422 | void *p; | |
423 | ||
424 | #ifdef DEBUG | |
425 | gemu_log("netbsd syscall %d\n", num); | |
426 | #endif | |
c36f7a64 EC |
427 | |
428 | record_syscall_start(cpu, num, arg1, arg2, arg3, arg4, arg5, arg6, 0, 0); | |
429 | ||
84778508 BS |
430 | if(do_strace) |
431 | print_netbsd_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6); | |
432 | ||
433 | switch(num) { | |
434 | case TARGET_NETBSD_NR_exit: | |
4cc600d2 | 435 | #ifdef CONFIG_GPROF |
84778508 BS |
436 | _mcleanup(); |
437 | #endif | |
438 | gdb_exit(cpu_env, arg1); | |
8634d77b | 439 | qemu_plugin_atexit_cb(); |
84778508 BS |
440 | /* XXX: should free thread stack and CPU env */ |
441 | _exit(arg1); | |
442 | ret = 0; /* avoid warning */ | |
443 | break; | |
444 | case TARGET_NETBSD_NR_read: | |
445 | if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0))) | |
446 | goto efault; | |
447 | ret = get_errno(read(arg1, p, arg3)); | |
448 | unlock_user(p, arg2, ret); | |
449 | break; | |
450 | case TARGET_NETBSD_NR_write: | |
451 | if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1))) | |
452 | goto efault; | |
453 | ret = get_errno(write(arg1, p, arg3)); | |
454 | unlock_user(p, arg2, 0); | |
455 | break; | |
456 | case TARGET_NETBSD_NR_open: | |
457 | if (!(p = lock_user_string(arg1))) | |
458 | goto efault; | |
459 | ret = get_errno(open(path(p), | |
460 | target_to_host_bitmask(arg2, fcntl_flags_tbl), | |
461 | arg3)); | |
462 | unlock_user(p, arg1, 0); | |
463 | break; | |
464 | case TARGET_NETBSD_NR_mmap: | |
465 | ret = get_errno(target_mmap(arg1, arg2, arg3, | |
466 | target_to_host_bitmask(arg4, mmap_flags_tbl), | |
467 | arg5, | |
468 | arg6)); | |
469 | break; | |
470 | case TARGET_NETBSD_NR_mprotect: | |
471 | ret = get_errno(target_mprotect(arg1, arg2, arg3)); | |
472 | break; | |
473 | case TARGET_NETBSD_NR_syscall: | |
474 | case TARGET_NETBSD_NR___syscall: | |
475 | ret = do_netbsd_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0); | |
476 | break; | |
477 | default: | |
478 | ret = syscall(num, arg1, arg2, arg3, arg4, arg5, arg6); | |
479 | break; | |
480 | } | |
481 | fail: | |
482 | #ifdef DEBUG | |
483 | gemu_log(" = %ld\n", ret); | |
484 | #endif | |
485 | if (do_strace) | |
486 | print_netbsd_syscall_ret(num, ret); | |
c36f7a64 EC |
487 | |
488 | record_syscall_return(cpu, num, ret); | |
84778508 BS |
489 | return ret; |
490 | efault: | |
491 | ret = -TARGET_EFAULT; | |
492 | goto fail; | |
493 | } | |
494 | ||
495 | abi_long do_openbsd_syscall(void *cpu_env, int num, abi_long arg1, | |
496 | abi_long arg2, abi_long arg3, abi_long arg4, | |
497 | abi_long arg5, abi_long arg6) | |
498 | { | |
29a0af61 | 499 | CPUState *cpu = env_cpu(cpu_env); |
84778508 BS |
500 | abi_long ret; |
501 | void *p; | |
502 | ||
503 | #ifdef DEBUG | |
504 | gemu_log("openbsd syscall %d\n", num); | |
505 | #endif | |
c36f7a64 EC |
506 | |
507 | record_syscall_start(cpu, num, arg1, arg2, arg3, arg4, arg5, arg6, 0, 0); | |
508 | ||
84778508 BS |
509 | if(do_strace) |
510 | print_openbsd_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6); | |
511 | ||
512 | switch(num) { | |
513 | case TARGET_OPENBSD_NR_exit: | |
4cc600d2 | 514 | #ifdef CONFIG_GPROF |
84778508 BS |
515 | _mcleanup(); |
516 | #endif | |
517 | gdb_exit(cpu_env, arg1); | |
8634d77b | 518 | qemu_plugin_atexit_cb(); |
84778508 BS |
519 | /* XXX: should free thread stack and CPU env */ |
520 | _exit(arg1); | |
521 | ret = 0; /* avoid warning */ | |
522 | break; | |
523 | case TARGET_OPENBSD_NR_read: | |
524 | if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0))) | |
525 | goto efault; | |
526 | ret = get_errno(read(arg1, p, arg3)); | |
527 | unlock_user(p, arg2, ret); | |
528 | break; | |
529 | case TARGET_OPENBSD_NR_write: | |
530 | if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1))) | |
531 | goto efault; | |
532 | ret = get_errno(write(arg1, p, arg3)); | |
533 | unlock_user(p, arg2, 0); | |
534 | break; | |
535 | case TARGET_OPENBSD_NR_open: | |
536 | if (!(p = lock_user_string(arg1))) | |
537 | goto efault; | |
538 | ret = get_errno(open(path(p), | |
539 | target_to_host_bitmask(arg2, fcntl_flags_tbl), | |
540 | arg3)); | |
541 | unlock_user(p, arg1, 0); | |
542 | break; | |
543 | case TARGET_OPENBSD_NR_mmap: | |
544 | ret = get_errno(target_mmap(arg1, arg2, arg3, | |
545 | target_to_host_bitmask(arg4, mmap_flags_tbl), | |
546 | arg5, | |
547 | arg6)); | |
548 | break; | |
549 | case TARGET_OPENBSD_NR_mprotect: | |
550 | ret = get_errno(target_mprotect(arg1, arg2, arg3)); | |
551 | break; | |
552 | case TARGET_OPENBSD_NR_syscall: | |
553 | case TARGET_OPENBSD_NR___syscall: | |
554 | ret = do_openbsd_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0); | |
555 | break; | |
556 | default: | |
557 | ret = syscall(num, arg1, arg2, arg3, arg4, arg5, arg6); | |
558 | break; | |
559 | } | |
560 | fail: | |
561 | #ifdef DEBUG | |
562 | gemu_log(" = %ld\n", ret); | |
563 | #endif | |
564 | if (do_strace) | |
565 | print_openbsd_syscall_ret(num, ret); | |
c36f7a64 EC |
566 | |
567 | record_syscall_return(cpu, num, ret); | |
84778508 BS |
568 | return ret; |
569 | efault: | |
570 | ret = -TARGET_EFAULT; | |
571 | goto fail; | |
572 | } | |
573 | ||
574 | void syscall_init(void) | |
575 | { | |
576 | } |