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blockdev: do not default cache.no-flush to true
[qemu/ar7.git] / linux-user / syscall.c
blobc62d8754f0ad7657d4d33f10c28ff9fdb6ee25a6
1 /*
2 * Linux syscalls
3 *
4 * Copyright (c) 2003 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
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
18 */
19 #define _ATFILE_SOURCE
20 #include <stdlib.h>
21 #include <stdio.h>
22 #include <stdarg.h>
23 #include <string.h>
24 #include <elf.h>
25 #include <endian.h>
26 #include <errno.h>
27 #include <unistd.h>
28 #include <fcntl.h>
29 #include <time.h>
30 #include <limits.h>
31 #include <grp.h>
32 #include <sys/types.h>
33 #include <sys/ipc.h>
34 #include <sys/msg.h>
35 #include <sys/wait.h>
36 #include <sys/time.h>
37 #include <sys/stat.h>
38 #include <sys/mount.h>
39 #include <sys/file.h>
40 #include <sys/fsuid.h>
41 #include <sys/personality.h>
42 #include <sys/prctl.h>
43 #include <sys/resource.h>
44 #include <sys/mman.h>
45 #include <sys/swap.h>
46 #include <signal.h>
47 #include <sched.h>
48 #ifdef __ia64__
49 int __clone2(int (*fn)(void *), void *child_stack_base,
50 size_t stack_size, int flags, void *arg, ...);
51 #endif
52 #include <sys/socket.h>
53 #include <sys/un.h>
54 #include <sys/uio.h>
55 #include <sys/poll.h>
56 #include <sys/times.h>
57 #include <sys/shm.h>
58 #include <sys/sem.h>
59 #include <sys/statfs.h>
60 #include <utime.h>
61 #include <sys/sysinfo.h>
62 #include <sys/utsname.h>
63 //#include <sys/user.h>
64 #include <netinet/ip.h>
65 #include <netinet/tcp.h>
66 #include <linux/wireless.h>
67 #include <linux/icmp.h>
68 #include "qemu-common.h"
69 #ifdef TARGET_GPROF
70 #include <sys/gmon.h>
71 #endif
72 #ifdef CONFIG_EVENTFD
73 #include <sys/eventfd.h>
74 #endif
75 #ifdef CONFIG_EPOLL
76 #include <sys/epoll.h>
77 #endif
78 #ifdef CONFIG_ATTR
79 #include "qemu/xattr.h"
80 #endif
81 #ifdef CONFIG_SENDFILE
82 #include <sys/sendfile.h>
83 #endif
84
85 #define termios host_termios
86 #define winsize host_winsize
87 #define termio host_termio
88 #define sgttyb host_sgttyb /* same as target */
89 #define tchars host_tchars /* same as target */
90 #define ltchars host_ltchars /* same as target */
91
92 #include <linux/termios.h>
93 #include <linux/unistd.h>
94 #include <linux/utsname.h>
95 #include <linux/cdrom.h>
96 #include <linux/hdreg.h>
97 #include <linux/soundcard.h>
98 #include <linux/kd.h>
99 #include <linux/mtio.h>
100 #include <linux/fs.h>
101 #if defined(CONFIG_FIEMAP)
102 #include <linux/fiemap.h>
103 #endif
104 #include <linux/fb.h>
105 #include <linux/vt.h>
106 #include <linux/dm-ioctl.h>
107 #include <linux/reboot.h>
108 #include <linux/route.h>
109 #include "linux_loop.h"
110 #include "cpu-uname.h"
111
112 #include "qemu.h"
113
114 #define CLONE_NPTL_FLAGS2 (CLONE_SETTLS | \
115 CLONE_PARENT_SETTID | CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID)
116
117 //#define DEBUG
118
119 //#include <linux/msdos_fs.h>
120 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct linux_dirent [2])
121 #define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct linux_dirent [2])
122
123
124 #undef _syscall0
125 #undef _syscall1
126 #undef _syscall2
127 #undef _syscall3
128 #undef _syscall4
129 #undef _syscall5
130 #undef _syscall6
131
132 #define _syscall0(type,name) \
133 static type name (void) \
134 { \
135 return syscall(__NR_##name); \
136 }
137
138 #define _syscall1(type,name,type1,arg1) \
139 static type name (type1 arg1) \
140 { \
141 return syscall(__NR_##name, arg1); \
142 }
143
144 #define _syscall2(type,name,type1,arg1,type2,arg2) \
145 static type name (type1 arg1,type2 arg2) \
146 { \
147 return syscall(__NR_##name, arg1, arg2); \
148 }
149
150 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
151 static type name (type1 arg1,type2 arg2,type3 arg3) \
152 { \
153 return syscall(__NR_##name, arg1, arg2, arg3); \
154 }
155
156 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
157 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \
158 { \
159 return syscall(__NR_##name, arg1, arg2, arg3, arg4); \
160 }
161
162 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
163 type5,arg5) \
164 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
165 { \
166 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
167 }
168
169
170 #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
171 type5,arg5,type6,arg6) \
172 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, \
173 type6 arg6) \
174 { \
175 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
176 }
177
178
179 #define __NR_sys_uname __NR_uname
180 #define __NR_sys_getcwd1 __NR_getcwd
181 #define __NR_sys_getdents __NR_getdents
182 #define __NR_sys_getdents64 __NR_getdents64
183 #define __NR_sys_getpriority __NR_getpriority
184 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
185 #define __NR_sys_syslog __NR_syslog
186 #define __NR_sys_tgkill __NR_tgkill
187 #define __NR_sys_tkill __NR_tkill
188 #define __NR_sys_futex __NR_futex
189 #define __NR_sys_inotify_init __NR_inotify_init
190 #define __NR_sys_inotify_add_watch __NR_inotify_add_watch
191 #define __NR_sys_inotify_rm_watch __NR_inotify_rm_watch
192
193 #if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__) || \
194 defined(__s390x__)
195 #define __NR__llseek __NR_lseek
196 #endif
197
198 #ifdef __NR_gettid
199 _syscall0(int, gettid)
200 #else
201 /* This is a replacement for the host gettid() and must return a host
202 errno. */
203 static int gettid(void) {
204 return -ENOSYS;
205 }
206 #endif
207 #ifdef __NR_getdents
208 _syscall3(int, sys_getdents, uint, fd, struct linux_dirent *, dirp, uint, count);
209 #endif
210 #if !defined(__NR_getdents) || \
211 (defined(TARGET_NR_getdents64) && defined(__NR_getdents64))
212 _syscall3(int, sys_getdents64, uint, fd, struct linux_dirent64 *, dirp, uint, count);
213 #endif
214 #if defined(TARGET_NR__llseek) && defined(__NR_llseek)
215 _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo,
216 loff_t *, res, uint, wh);
217 #endif
218 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
219 _syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
220 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
221 _syscall3(int,sys_tgkill,int,tgid,int,pid,int,sig)
222 #endif
223 #if defined(TARGET_NR_tkill) && defined(__NR_tkill)
224 _syscall2(int,sys_tkill,int,tid,int,sig)
225 #endif
226 #ifdef __NR_exit_group
227 _syscall1(int,exit_group,int,error_code)
228 #endif
229 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
230 _syscall1(int,set_tid_address,int *,tidptr)
231 #endif
232 #if defined(TARGET_NR_futex) && defined(__NR_futex)
233 _syscall6(int,sys_futex,int *,uaddr,int,op,int,val,
234 const struct timespec *,timeout,int *,uaddr2,int,val3)
235 #endif
236 #define __NR_sys_sched_getaffinity __NR_sched_getaffinity
237 _syscall3(int, sys_sched_getaffinity, pid_t, pid, unsigned int, len,
238 unsigned long *, user_mask_ptr);
239 #define __NR_sys_sched_setaffinity __NR_sched_setaffinity
240 _syscall3(int, sys_sched_setaffinity, pid_t, pid, unsigned int, len,
241 unsigned long *, user_mask_ptr);
242 _syscall4(int, reboot, int, magic1, int, magic2, unsigned int, cmd,
243 void *, arg);
244
245 static bitmask_transtbl fcntl_flags_tbl[] = {
246 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, },
247 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, },
248 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, },
249 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, },
250 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, },
251 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, },
252 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, },
253 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, },
254 { TARGET_O_SYNC, TARGET_O_DSYNC, O_SYNC, O_DSYNC, },
255 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, },
256 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, },
257 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
258 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, },
259 #if defined(O_DIRECT)
260 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, },
261 #endif
262 #if defined(O_NOATIME)
263 { TARGET_O_NOATIME, TARGET_O_NOATIME, O_NOATIME, O_NOATIME },
264 #endif
265 #if defined(O_CLOEXEC)
266 { TARGET_O_CLOEXEC, TARGET_O_CLOEXEC, O_CLOEXEC, O_CLOEXEC },
267 #endif
268 #if defined(O_PATH)
269 { TARGET_O_PATH, TARGET_O_PATH, O_PATH, O_PATH },
270 #endif
271 /* Don't terminate the list prematurely on 64-bit host+guest. */
272 #if TARGET_O_LARGEFILE != 0 || O_LARGEFILE != 0
273 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
274 #endif
275 { 0, 0, 0, 0 }
276 };
277
278 #define COPY_UTSNAME_FIELD(dest, src) \
279 do { \
280 /* __NEW_UTS_LEN doesn't include terminating null */ \
281 (void) strncpy((dest), (src), __NEW_UTS_LEN); \
282 (dest)[__NEW_UTS_LEN] = '\0'; \
283 } while (0)
284
285 static int sys_uname(struct new_utsname *buf)
286 {
287 struct utsname uts_buf;
288
289 if (uname(&uts_buf) < 0)
290 return (-1);
291
292 /*
293 * Just in case these have some differences, we
294 * translate utsname to new_utsname (which is the
295 * struct linux kernel uses).
296 */
297
298 memset(buf, 0, sizeof(*buf));
299 COPY_UTSNAME_FIELD(buf->sysname, uts_buf.sysname);
300 COPY_UTSNAME_FIELD(buf->nodename, uts_buf.nodename);
301 COPY_UTSNAME_FIELD(buf->release, uts_buf.release);
302 COPY_UTSNAME_FIELD(buf->version, uts_buf.version);
303 COPY_UTSNAME_FIELD(buf->machine, uts_buf.machine);
304 #ifdef _GNU_SOURCE
305 COPY_UTSNAME_FIELD(buf->domainname, uts_buf.domainname);
306 #endif
307 return (0);
308
309 #undef COPY_UTSNAME_FIELD
310 }
311
312 static int sys_getcwd1(char *buf, size_t size)
313 {
314 if (getcwd(buf, size) == NULL) {
315 /* getcwd() sets errno */
316 return (-1);
317 }
318 return strlen(buf)+1;
319 }
320
321 #ifdef TARGET_NR_openat
322 static int sys_openat(int dirfd, const char *pathname, int flags, mode_t mode)
323 {
324 /*
325 * open(2) has extra parameter 'mode' when called with
326 * flag O_CREAT.
327 */
328 if ((flags & O_CREAT) != 0) {
329 return (openat(dirfd, pathname, flags, mode));
330 }
331 return (openat(dirfd, pathname, flags));
332 }
333 #endif
334
335 #ifdef TARGET_NR_utimensat
336 #ifdef CONFIG_UTIMENSAT
337 static int sys_utimensat(int dirfd, const char *pathname,
338 const struct timespec times[2], int flags)
339 {
340 if (pathname == NULL)
341 return futimens(dirfd, times);
342 else
343 return utimensat(dirfd, pathname, times, flags);
344 }
345 #elif defined(__NR_utimensat)
346 #define __NR_sys_utimensat __NR_utimensat
347 _syscall4(int,sys_utimensat,int,dirfd,const char *,pathname,
348 const struct timespec *,tsp,int,flags)
349 #else
350 static int sys_utimensat(int dirfd, const char *pathname,
351 const struct timespec times[2], int flags)
352 {
353 errno = ENOSYS;
354 return -1;
355 }
356 #endif
357 #endif /* TARGET_NR_utimensat */
358
359 #ifdef CONFIG_INOTIFY
360 #include <sys/inotify.h>
361
362 #if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
363 static int sys_inotify_init(void)
364 {
365 return (inotify_init());
366 }
367 #endif
368 #if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
369 static int sys_inotify_add_watch(int fd,const char *pathname, int32_t mask)
370 {
371 return (inotify_add_watch(fd, pathname, mask));
372 }
373 #endif
374 #if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
375 static int sys_inotify_rm_watch(int fd, int32_t wd)
376 {
377 return (inotify_rm_watch(fd, wd));
378 }
379 #endif
380 #ifdef CONFIG_INOTIFY1
381 #if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
382 static int sys_inotify_init1(int flags)
383 {
384 return (inotify_init1(flags));
385 }
386 #endif
387 #endif
388 #else
389 /* Userspace can usually survive runtime without inotify */
390 #undef TARGET_NR_inotify_init
391 #undef TARGET_NR_inotify_init1
392 #undef TARGET_NR_inotify_add_watch
393 #undef TARGET_NR_inotify_rm_watch
394 #endif /* CONFIG_INOTIFY */
395
396 #if defined(TARGET_NR_ppoll)
397 #ifndef __NR_ppoll
398 # define __NR_ppoll -1
399 #endif
400 #define __NR_sys_ppoll __NR_ppoll
401 _syscall5(int, sys_ppoll, struct pollfd *, fds, nfds_t, nfds,
402 struct timespec *, timeout, const __sigset_t *, sigmask,
403 size_t, sigsetsize)
404 #endif
405
406 #if defined(TARGET_NR_pselect6)
407 #ifndef __NR_pselect6
408 # define __NR_pselect6 -1
409 #endif
410 #define __NR_sys_pselect6 __NR_pselect6
411 _syscall6(int, sys_pselect6, int, nfds, fd_set *, readfds, fd_set *, writefds,
412 fd_set *, exceptfds, struct timespec *, timeout, void *, sig);
413 #endif
414
415 #if defined(TARGET_NR_prlimit64)
416 #ifndef __NR_prlimit64
417 # define __NR_prlimit64 -1
418 #endif
419 #define __NR_sys_prlimit64 __NR_prlimit64
420 /* The glibc rlimit structure may not be that used by the underlying syscall */
421 struct host_rlimit64 {
422 uint64_t rlim_cur;
423 uint64_t rlim_max;
424 };
425 _syscall4(int, sys_prlimit64, pid_t, pid, int, resource,
426 const struct host_rlimit64 *, new_limit,
427 struct host_rlimit64 *, old_limit)
428 #endif
429
430 /* ARM EABI and MIPS expect 64bit types aligned even on pairs or registers */
431 #ifdef TARGET_ARM
432 static inline int regpairs_aligned(void *cpu_env) {
433 return ((((CPUARMState *)cpu_env)->eabi) == 1) ;
434 }
435 #elif defined(TARGET_MIPS)
436 static inline int regpairs_aligned(void *cpu_env) { return 1; }
437 #elif defined(TARGET_PPC) && !defined(TARGET_PPC64)
438 /* SysV AVI for PPC32 expects 64bit parameters to be passed on odd/even pairs
439 * of registers which translates to the same as ARM/MIPS, because we start with
440 * r3 as arg1 */
441 static inline int regpairs_aligned(void *cpu_env) { return 1; }
442 #else
443 static inline int regpairs_aligned(void *cpu_env) { return 0; }
444 #endif
445
446 #define ERRNO_TABLE_SIZE 1200
447
448 /* target_to_host_errno_table[] is initialized from
449 * host_to_target_errno_table[] in syscall_init(). */
450 static uint16_t target_to_host_errno_table[ERRNO_TABLE_SIZE] = {
451 };
452
453 /*
454 * This list is the union of errno values overridden in asm-<arch>/errno.h
455 * minus the errnos that are not actually generic to all archs.
456 */
457 static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = {
458 [EIDRM] = TARGET_EIDRM,
459 [ECHRNG] = TARGET_ECHRNG,
460 [EL2NSYNC] = TARGET_EL2NSYNC,
461 [EL3HLT] = TARGET_EL3HLT,
462 [EL3RST] = TARGET_EL3RST,
463 [ELNRNG] = TARGET_ELNRNG,
464 [EUNATCH] = TARGET_EUNATCH,
465 [ENOCSI] = TARGET_ENOCSI,
466 [EL2HLT] = TARGET_EL2HLT,
467 [EDEADLK] = TARGET_EDEADLK,
468 [ENOLCK] = TARGET_ENOLCK,
469 [EBADE] = TARGET_EBADE,
470 [EBADR] = TARGET_EBADR,
471 [EXFULL] = TARGET_EXFULL,
472 [ENOANO] = TARGET_ENOANO,
473 [EBADRQC] = TARGET_EBADRQC,
474 [EBADSLT] = TARGET_EBADSLT,
475 [EBFONT] = TARGET_EBFONT,
476 [ENOSTR] = TARGET_ENOSTR,
477 [ENODATA] = TARGET_ENODATA,
478 [ETIME] = TARGET_ETIME,
479 [ENOSR] = TARGET_ENOSR,
480 [ENONET] = TARGET_ENONET,
481 [ENOPKG] = TARGET_ENOPKG,
482 [EREMOTE] = TARGET_EREMOTE,
483 [ENOLINK] = TARGET_ENOLINK,
484 [EADV] = TARGET_EADV,
485 [ESRMNT] = TARGET_ESRMNT,
486 [ECOMM] = TARGET_ECOMM,
487 [EPROTO] = TARGET_EPROTO,
488 [EDOTDOT] = TARGET_EDOTDOT,
489 [EMULTIHOP] = TARGET_EMULTIHOP,
490 [EBADMSG] = TARGET_EBADMSG,
491 [ENAMETOOLONG] = TARGET_ENAMETOOLONG,
492 [EOVERFLOW] = TARGET_EOVERFLOW,
493 [ENOTUNIQ] = TARGET_ENOTUNIQ,
494 [EBADFD] = TARGET_EBADFD,
495 [EREMCHG] = TARGET_EREMCHG,
496 [ELIBACC] = TARGET_ELIBACC,
497 [ELIBBAD] = TARGET_ELIBBAD,
498 [ELIBSCN] = TARGET_ELIBSCN,
499 [ELIBMAX] = TARGET_ELIBMAX,
500 [ELIBEXEC] = TARGET_ELIBEXEC,
501 [EILSEQ] = TARGET_EILSEQ,
502 [ENOSYS] = TARGET_ENOSYS,
503 [ELOOP] = TARGET_ELOOP,
504 [ERESTART] = TARGET_ERESTART,
505 [ESTRPIPE] = TARGET_ESTRPIPE,
506 [ENOTEMPTY] = TARGET_ENOTEMPTY,
507 [EUSERS] = TARGET_EUSERS,
508 [ENOTSOCK] = TARGET_ENOTSOCK,
509 [EDESTADDRREQ] = TARGET_EDESTADDRREQ,
510 [EMSGSIZE] = TARGET_EMSGSIZE,
511 [EPROTOTYPE] = TARGET_EPROTOTYPE,
512 [ENOPROTOOPT] = TARGET_ENOPROTOOPT,
513 [EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT,
514 [ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT,
515 [EOPNOTSUPP] = TARGET_EOPNOTSUPP,
516 [EPFNOSUPPORT] = TARGET_EPFNOSUPPORT,
517 [EAFNOSUPPORT] = TARGET_EAFNOSUPPORT,
518 [EADDRINUSE] = TARGET_EADDRINUSE,
519 [EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL,
520 [ENETDOWN] = TARGET_ENETDOWN,
521 [ENETUNREACH] = TARGET_ENETUNREACH,
522 [ENETRESET] = TARGET_ENETRESET,
523 [ECONNABORTED] = TARGET_ECONNABORTED,
524 [ECONNRESET] = TARGET_ECONNRESET,
525 [ENOBUFS] = TARGET_ENOBUFS,
526 [EISCONN] = TARGET_EISCONN,
527 [ENOTCONN] = TARGET_ENOTCONN,
528 [EUCLEAN] = TARGET_EUCLEAN,
529 [ENOTNAM] = TARGET_ENOTNAM,
530 [ENAVAIL] = TARGET_ENAVAIL,
531 [EISNAM] = TARGET_EISNAM,
532 [EREMOTEIO] = TARGET_EREMOTEIO,
533 [ESHUTDOWN] = TARGET_ESHUTDOWN,
534 [ETOOMANYREFS] = TARGET_ETOOMANYREFS,
535 [ETIMEDOUT] = TARGET_ETIMEDOUT,
536 [ECONNREFUSED] = TARGET_ECONNREFUSED,
537 [EHOSTDOWN] = TARGET_EHOSTDOWN,
538 [EHOSTUNREACH] = TARGET_EHOSTUNREACH,
539 [EALREADY] = TARGET_EALREADY,
540 [EINPROGRESS] = TARGET_EINPROGRESS,
541 [ESTALE] = TARGET_ESTALE,
542 [ECANCELED] = TARGET_ECANCELED,
543 [ENOMEDIUM] = TARGET_ENOMEDIUM,
544 [EMEDIUMTYPE] = TARGET_EMEDIUMTYPE,
545 #ifdef ENOKEY
546 [ENOKEY] = TARGET_ENOKEY,
547 #endif
548 #ifdef EKEYEXPIRED
549 [EKEYEXPIRED] = TARGET_EKEYEXPIRED,
550 #endif
551 #ifdef EKEYREVOKED
552 [EKEYREVOKED] = TARGET_EKEYREVOKED,
553 #endif
554 #ifdef EKEYREJECTED
555 [EKEYREJECTED] = TARGET_EKEYREJECTED,
556 #endif
557 #ifdef EOWNERDEAD
558 [EOWNERDEAD] = TARGET_EOWNERDEAD,
559 #endif
560 #ifdef ENOTRECOVERABLE
561 [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE,
562 #endif
563 };
564
565 static inline int host_to_target_errno(int err)
566 {
567 if(host_to_target_errno_table[err])
568 return host_to_target_errno_table[err];
569 return err;
570 }
571
572 static inline int target_to_host_errno(int err)
573 {
574 if (target_to_host_errno_table[err])
575 return target_to_host_errno_table[err];
576 return err;
577 }
578
579 static inline abi_long get_errno(abi_long ret)
580 {
581 if (ret == -1)
582 return -host_to_target_errno(errno);
583 else
584 return ret;
585 }
586
587 static inline int is_error(abi_long ret)
588 {
589 return (abi_ulong)ret >= (abi_ulong)(-4096);
590 }
591
592 char *target_strerror(int err)
593 {
594 if ((err >= ERRNO_TABLE_SIZE) || (err < 0)) {
595 return NULL;
596 }
597 return strerror(target_to_host_errno(err));
598 }
599
600 static abi_ulong target_brk;
601 static abi_ulong target_original_brk;
602 static abi_ulong brk_page;
603
604 void target_set_brk(abi_ulong new_brk)
605 {
606 target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk);
607 brk_page = HOST_PAGE_ALIGN(target_brk);
608 }
609
610 //#define DEBUGF_BRK(message, args...) do { fprintf(stderr, (message), ## args); } while (0)
611 #define DEBUGF_BRK(message, args...)
612
613 /* do_brk() must return target values and target errnos. */
614 abi_long do_brk(abi_ulong new_brk)
615 {
616 abi_long mapped_addr;
617 int new_alloc_size;
618
619 DEBUGF_BRK("do_brk(" TARGET_ABI_FMT_lx ") -> ", new_brk);
620
621 if (!new_brk) {
622 DEBUGF_BRK(TARGET_ABI_FMT_lx " (!new_brk)\n", target_brk);
623 return target_brk;
624 }
625 if (new_brk < target_original_brk) {
626 DEBUGF_BRK(TARGET_ABI_FMT_lx " (new_brk < target_original_brk)\n",
627 target_brk);
628 return target_brk;
629 }
630
631 /* If the new brk is less than the highest page reserved to the
632 * target heap allocation, set it and we're almost done... */
633 if (new_brk <= brk_page) {
634 /* Heap contents are initialized to zero, as for anonymous
635 * mapped pages. */
636 if (new_brk > target_brk) {
637 memset(g2h(target_brk), 0, new_brk - target_brk);
638 }
639 target_brk = new_brk;
640 DEBUGF_BRK(TARGET_ABI_FMT_lx " (new_brk <= brk_page)\n", target_brk);
641 return target_brk;
642 }
643
644 /* We need to allocate more memory after the brk... Note that
645 * we don't use MAP_FIXED because that will map over the top of
646 * any existing mapping (like the one with the host libc or qemu
647 * itself); instead we treat "mapped but at wrong address" as
648 * a failure and unmap again.
649 */
650 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page);
651 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
652 PROT_READ|PROT_WRITE,
653 MAP_ANON|MAP_PRIVATE, 0, 0));
654
655 if (mapped_addr == brk_page) {
656 /* Heap contents are initialized to zero, as for anonymous
657 * mapped pages. Technically the new pages are already
658 * initialized to zero since they *are* anonymous mapped
659 * pages, however we have to take care with the contents that
660 * come from the remaining part of the previous page: it may
661 * contains garbage data due to a previous heap usage (grown
662 * then shrunken). */
663 memset(g2h(target_brk), 0, brk_page - target_brk);
664
665 target_brk = new_brk;
666 brk_page = HOST_PAGE_ALIGN(target_brk);
667 DEBUGF_BRK(TARGET_ABI_FMT_lx " (mapped_addr == brk_page)\n",
668 target_brk);
669 return target_brk;
670 } else if (mapped_addr != -1) {
671 /* Mapped but at wrong address, meaning there wasn't actually
672 * enough space for this brk.
673 */
674 target_munmap(mapped_addr, new_alloc_size);
675 mapped_addr = -1;
676 DEBUGF_BRK(TARGET_ABI_FMT_lx " (mapped_addr != -1)\n", target_brk);
677 }
678 else {
679 DEBUGF_BRK(TARGET_ABI_FMT_lx " (otherwise)\n", target_brk);
680 }
681
682 #if defined(TARGET_ALPHA)
683 /* We (partially) emulate OSF/1 on Alpha, which requires we
684 return a proper errno, not an unchanged brk value. */
685 return -TARGET_ENOMEM;
686 #endif
687 /* For everything else, return the previous break. */
688 return target_brk;
689 }
690
691 static inline abi_long copy_from_user_fdset(fd_set *fds,
692 abi_ulong target_fds_addr,
693 int n)
694 {
695 int i, nw, j, k;
696 abi_ulong b, *target_fds;
697
698 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
699 if (!(target_fds = lock_user(VERIFY_READ,
700 target_fds_addr,
701 sizeof(abi_ulong) * nw,
702 1)))
703 return -TARGET_EFAULT;
704
705 FD_ZERO(fds);
706 k = 0;
707 for (i = 0; i < nw; i++) {
708 /* grab the abi_ulong */
709 __get_user(b, &target_fds[i]);
710 for (j = 0; j < TARGET_ABI_BITS; j++) {
711 /* check the bit inside the abi_ulong */
712 if ((b >> j) & 1)
713 FD_SET(k, fds);
714 k++;
715 }
716 }
717
718 unlock_user(target_fds, target_fds_addr, 0);
719
720 return 0;
721 }
722
723 static inline abi_ulong copy_from_user_fdset_ptr(fd_set *fds, fd_set **fds_ptr,
724 abi_ulong target_fds_addr,
725 int n)
726 {
727 if (target_fds_addr) {
728 if (copy_from_user_fdset(fds, target_fds_addr, n))
729 return -TARGET_EFAULT;
730 *fds_ptr = fds;
731 } else {
732 *fds_ptr = NULL;
733 }
734 return 0;
735 }
736
737 static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr,
738 const fd_set *fds,
739 int n)
740 {
741 int i, nw, j, k;
742 abi_long v;
743 abi_ulong *target_fds;
744
745 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
746 if (!(target_fds = lock_user(VERIFY_WRITE,
747 target_fds_addr,
748 sizeof(abi_ulong) * nw,
749 0)))
750 return -TARGET_EFAULT;
751
752 k = 0;
753 for (i = 0; i < nw; i++) {
754 v = 0;
755 for (j = 0; j < TARGET_ABI_BITS; j++) {
756 v |= ((abi_ulong)(FD_ISSET(k, fds) != 0) << j);
757 k++;
758 }
759 __put_user(v, &target_fds[i]);
760 }
761
762 unlock_user(target_fds, target_fds_addr, sizeof(abi_ulong) * nw);
763
764 return 0;
765 }
766
767 #if defined(__alpha__)
768 #define HOST_HZ 1024
769 #else
770 #define HOST_HZ 100
771 #endif
772
773 static inline abi_long host_to_target_clock_t(long ticks)
774 {
775 #if HOST_HZ == TARGET_HZ
776 return ticks;
777 #else
778 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
779 #endif
780 }
781
782 static inline abi_long host_to_target_rusage(abi_ulong target_addr,
783 const struct rusage *rusage)
784 {
785 struct target_rusage *target_rusage;
786
787 if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0))
788 return -TARGET_EFAULT;
789 target_rusage->ru_utime.tv_sec = tswapal(rusage->ru_utime.tv_sec);
790 target_rusage->ru_utime.tv_usec = tswapal(rusage->ru_utime.tv_usec);
791 target_rusage->ru_stime.tv_sec = tswapal(rusage->ru_stime.tv_sec);
792 target_rusage->ru_stime.tv_usec = tswapal(rusage->ru_stime.tv_usec);
793 target_rusage->ru_maxrss = tswapal(rusage->ru_maxrss);
794 target_rusage->ru_ixrss = tswapal(rusage->ru_ixrss);
795 target_rusage->ru_idrss = tswapal(rusage->ru_idrss);
796 target_rusage->ru_isrss = tswapal(rusage->ru_isrss);
797 target_rusage->ru_minflt = tswapal(rusage->ru_minflt);
798 target_rusage->ru_majflt = tswapal(rusage->ru_majflt);
799 target_rusage->ru_nswap = tswapal(rusage->ru_nswap);
800 target_rusage->ru_inblock = tswapal(rusage->ru_inblock);
801 target_rusage->ru_oublock = tswapal(rusage->ru_oublock);
802 target_rusage->ru_msgsnd = tswapal(rusage->ru_msgsnd);
803 target_rusage->ru_msgrcv = tswapal(rusage->ru_msgrcv);
804 target_rusage->ru_nsignals = tswapal(rusage->ru_nsignals);
805 target_rusage->ru_nvcsw = tswapal(rusage->ru_nvcsw);
806 target_rusage->ru_nivcsw = tswapal(rusage->ru_nivcsw);
807 unlock_user_struct(target_rusage, target_addr, 1);
808
809 return 0;
810 }
811
812 static inline rlim_t target_to_host_rlim(abi_ulong target_rlim)
813 {
814 abi_ulong target_rlim_swap;
815 rlim_t result;
816
817 target_rlim_swap = tswapal(target_rlim);
818 if (target_rlim_swap == TARGET_RLIM_INFINITY)
819 return RLIM_INFINITY;
820
821 result = target_rlim_swap;
822 if (target_rlim_swap != (rlim_t)result)
823 return RLIM_INFINITY;
824
825 return result;
826 }
827
828 static inline abi_ulong host_to_target_rlim(rlim_t rlim)
829 {
830 abi_ulong target_rlim_swap;
831 abi_ulong result;
832
833 if (rlim == RLIM_INFINITY || rlim != (abi_long)rlim)
834 target_rlim_swap = TARGET_RLIM_INFINITY;
835 else
836 target_rlim_swap = rlim;
837 result = tswapal(target_rlim_swap);
838
839 return result;
840 }
841
842 static inline int target_to_host_resource(int code)
843 {
844 switch (code) {
845 case TARGET_RLIMIT_AS:
846 return RLIMIT_AS;
847 case TARGET_RLIMIT_CORE:
848 return RLIMIT_CORE;
849 case TARGET_RLIMIT_CPU:
850 return RLIMIT_CPU;
851 case TARGET_RLIMIT_DATA:
852 return RLIMIT_DATA;
853 case TARGET_RLIMIT_FSIZE:
854 return RLIMIT_FSIZE;
855 case TARGET_RLIMIT_LOCKS:
856 return RLIMIT_LOCKS;
857 case TARGET_RLIMIT_MEMLOCK:
858 return RLIMIT_MEMLOCK;
859 case TARGET_RLIMIT_MSGQUEUE:
860 return RLIMIT_MSGQUEUE;
861 case TARGET_RLIMIT_NICE:
862 return RLIMIT_NICE;
863 case TARGET_RLIMIT_NOFILE:
864 return RLIMIT_NOFILE;
865 case TARGET_RLIMIT_NPROC:
866 return RLIMIT_NPROC;
867 case TARGET_RLIMIT_RSS:
868 return RLIMIT_RSS;
869 case TARGET_RLIMIT_RTPRIO:
870 return RLIMIT_RTPRIO;
871 case TARGET_RLIMIT_SIGPENDING:
872 return RLIMIT_SIGPENDING;
873 case TARGET_RLIMIT_STACK:
874 return RLIMIT_STACK;
875 default:
876 return code;
877 }
878 }
879
880 static inline abi_long copy_from_user_timeval(struct timeval *tv,
881 abi_ulong target_tv_addr)
882 {
883 struct target_timeval *target_tv;
884
885 if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1))
886 return -TARGET_EFAULT;
887
888 __get_user(tv->tv_sec, &target_tv->tv_sec);
889 __get_user(tv->tv_usec, &target_tv->tv_usec);
890
891 unlock_user_struct(target_tv, target_tv_addr, 0);
892
893 return 0;
894 }
895
896 static inline abi_long copy_to_user_timeval(abi_ulong target_tv_addr,
897 const struct timeval *tv)
898 {
899 struct target_timeval *target_tv;
900
901 if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0))
902 return -TARGET_EFAULT;
903
904 __put_user(tv->tv_sec, &target_tv->tv_sec);
905 __put_user(tv->tv_usec, &target_tv->tv_usec);
906
907 unlock_user_struct(target_tv, target_tv_addr, 1);
908
909 return 0;
910 }
911
912 #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
913 #include <mqueue.h>
914
915 static inline abi_long copy_from_user_mq_attr(struct mq_attr *attr,
916 abi_ulong target_mq_attr_addr)
917 {
918 struct target_mq_attr *target_mq_attr;
919
920 if (!lock_user_struct(VERIFY_READ, target_mq_attr,
921 target_mq_attr_addr, 1))
922 return -TARGET_EFAULT;
923
924 __get_user(attr->mq_flags, &target_mq_attr->mq_flags);
925 __get_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
926 __get_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
927 __get_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
928
929 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 0);
930
931 return 0;
932 }
933
934 static inline abi_long copy_to_user_mq_attr(abi_ulong target_mq_attr_addr,
935 const struct mq_attr *attr)
936 {
937 struct target_mq_attr *target_mq_attr;
938
939 if (!lock_user_struct(VERIFY_WRITE, target_mq_attr,
940 target_mq_attr_addr, 0))
941 return -TARGET_EFAULT;
942
943 __put_user(attr->mq_flags, &target_mq_attr->mq_flags);
944 __put_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
945 __put_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
946 __put_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
947
948 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 1);
949
950 return 0;
951 }
952 #endif
953
954 #if defined(TARGET_NR_select) || defined(TARGET_NR__newselect)
955 /* do_select() must return target values and target errnos. */
956 static abi_long do_select(int n,
957 abi_ulong rfd_addr, abi_ulong wfd_addr,
958 abi_ulong efd_addr, abi_ulong target_tv_addr)
959 {
960 fd_set rfds, wfds, efds;
961 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
962 struct timeval tv, *tv_ptr;
963 abi_long ret;
964
965 ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n);
966 if (ret) {
967 return ret;
968 }
969 ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n);
970 if (ret) {
971 return ret;
972 }
973 ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n);
974 if (ret) {
975 return ret;
976 }
977
978 if (target_tv_addr) {
979 if (copy_from_user_timeval(&tv, target_tv_addr))
980 return -TARGET_EFAULT;
981 tv_ptr = &tv;
982 } else {
983 tv_ptr = NULL;
984 }
985
986 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
987
988 if (!is_error(ret)) {
989 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
990 return -TARGET_EFAULT;
991 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
992 return -TARGET_EFAULT;
993 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
994 return -TARGET_EFAULT;
995
996 if (target_tv_addr && copy_to_user_timeval(target_tv_addr, &tv))
997 return -TARGET_EFAULT;
998 }
999
1000 return ret;
1001 }
1002 #endif
1003
1004 static abi_long do_pipe2(int host_pipe[], int flags)
1005 {
1006 #ifdef CONFIG_PIPE2
1007 return pipe2(host_pipe, flags);
1008 #else
1009 return -ENOSYS;
1010 #endif
1011 }
1012
1013 static abi_long do_pipe(void *cpu_env, abi_ulong pipedes,
1014 int flags, int is_pipe2)
1015 {
1016 int host_pipe[2];
1017 abi_long ret;
1018 ret = flags ? do_pipe2(host_pipe, flags) : pipe(host_pipe);
1019
1020 if (is_error(ret))
1021 return get_errno(ret);
1022
1023 /* Several targets have special calling conventions for the original
1024 pipe syscall, but didn't replicate this into the pipe2 syscall. */
1025 if (!is_pipe2) {
1026 #if defined(TARGET_ALPHA)
1027 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = host_pipe[1];
1028 return host_pipe[0];
1029 #elif defined(TARGET_MIPS)
1030 ((CPUMIPSState*)cpu_env)->active_tc.gpr[3] = host_pipe[1];
1031 return host_pipe[0];
1032 #elif defined(TARGET_SH4)
1033 ((CPUSH4State*)cpu_env)->gregs[1] = host_pipe[1];
1034 return host_pipe[0];
1035 #elif defined(TARGET_SPARC)
1036 ((CPUSPARCState*)cpu_env)->regwptr[1] = host_pipe[1];
1037 return host_pipe[0];
1038 #endif
1039 }
1040
1041 if (put_user_s32(host_pipe[0], pipedes)
1042 || put_user_s32(host_pipe[1], pipedes + sizeof(host_pipe[0])))
1043 return -TARGET_EFAULT;
1044 return get_errno(ret);
1045 }
1046
1047 static inline abi_long target_to_host_ip_mreq(struct ip_mreqn *mreqn,
1048 abi_ulong target_addr,
1049 socklen_t len)
1050 {
1051 struct target_ip_mreqn *target_smreqn;
1052
1053 target_smreqn = lock_user(VERIFY_READ, target_addr, len, 1);
1054 if (!target_smreqn)
1055 return -TARGET_EFAULT;
1056 mreqn->imr_multiaddr.s_addr = target_smreqn->imr_multiaddr.s_addr;
1057 mreqn->imr_address.s_addr = target_smreqn->imr_address.s_addr;
1058 if (len == sizeof(struct target_ip_mreqn))
1059 mreqn->imr_ifindex = tswapal(target_smreqn->imr_ifindex);
1060 unlock_user(target_smreqn, target_addr, 0);
1061
1062 return 0;
1063 }
1064
1065 static inline abi_long target_to_host_sockaddr(struct sockaddr *addr,
1066 abi_ulong target_addr,
1067 socklen_t len)
1068 {
1069 const socklen_t unix_maxlen = sizeof (struct sockaddr_un);
1070 sa_family_t sa_family;
1071 struct target_sockaddr *target_saddr;
1072
1073 target_saddr = lock_user(VERIFY_READ, target_addr, len, 1);
1074 if (!target_saddr)
1075 return -TARGET_EFAULT;
1076
1077 sa_family = tswap16(target_saddr->sa_family);
1078
1079 /* Oops. The caller might send a incomplete sun_path; sun_path
1080 * must be terminated by \0 (see the manual page), but
1081 * unfortunately it is quite common to specify sockaddr_un
1082 * length as "strlen(x->sun_path)" while it should be
1083 * "strlen(...) + 1". We'll fix that here if needed.
1084 * Linux kernel has a similar feature.
1085 */
1086
1087 if (sa_family == AF_UNIX) {
1088 if (len < unix_maxlen && len > 0) {
1089 char *cp = (char*)target_saddr;
1090
1091 if ( cp[len-1] && !cp[len] )
1092 len++;
1093 }
1094 if (len > unix_maxlen)
1095 len = unix_maxlen;
1096 }
1097
1098 memcpy(addr, target_saddr, len);
1099 addr->sa_family = sa_family;
1100 unlock_user(target_saddr, target_addr, 0);
1101
1102 return 0;
1103 }
1104
1105 static inline abi_long host_to_target_sockaddr(abi_ulong target_addr,
1106 struct sockaddr *addr,
1107 socklen_t len)
1108 {
1109 struct target_sockaddr *target_saddr;
1110
1111 target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0);
1112 if (!target_saddr)
1113 return -TARGET_EFAULT;
1114 memcpy(target_saddr, addr, len);
1115 target_saddr->sa_family = tswap16(addr->sa_family);
1116 unlock_user(target_saddr, target_addr, len);
1117
1118 return 0;
1119 }
1120
1121 static inline abi_long target_to_host_cmsg(struct msghdr *msgh,
1122 struct target_msghdr *target_msgh)
1123 {
1124 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
1125 abi_long msg_controllen;
1126 abi_ulong target_cmsg_addr;
1127 struct target_cmsghdr *target_cmsg;
1128 socklen_t space = 0;
1129
1130 msg_controllen = tswapal(target_msgh->msg_controllen);
1131 if (msg_controllen < sizeof (struct target_cmsghdr))
1132 goto the_end;
1133 target_cmsg_addr = tswapal(target_msgh->msg_control);
1134 target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1);
1135 if (!target_cmsg)
1136 return -TARGET_EFAULT;
1137
1138 while (cmsg && target_cmsg) {
1139 void *data = CMSG_DATA(cmsg);
1140 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1141
1142 int len = tswapal(target_cmsg->cmsg_len)
1143 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
1144
1145 space += CMSG_SPACE(len);
1146 if (space > msgh->msg_controllen) {
1147 space -= CMSG_SPACE(len);
1148 gemu_log("Host cmsg overflow\n");
1149 break;
1150 }
1151
1152 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
1153 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
1154 cmsg->cmsg_len = CMSG_LEN(len);
1155
1156 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
1157 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
1158 memcpy(data, target_data, len);
1159 } else {
1160 int *fd = (int *)data;
1161 int *target_fd = (int *)target_data;
1162 int i, numfds = len / sizeof(int);
1163
1164 for (i = 0; i < numfds; i++)
1165 fd[i] = tswap32(target_fd[i]);
1166 }
1167
1168 cmsg = CMSG_NXTHDR(msgh, cmsg);
1169 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
1170 }
1171 unlock_user(target_cmsg, target_cmsg_addr, 0);
1172 the_end:
1173 msgh->msg_controllen = space;
1174 return 0;
1175 }
1176
1177 static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh,
1178 struct msghdr *msgh)
1179 {
1180 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
1181 abi_long msg_controllen;
1182 abi_ulong target_cmsg_addr;
1183 struct target_cmsghdr *target_cmsg;
1184 socklen_t space = 0;
1185
1186 msg_controllen = tswapal(target_msgh->msg_controllen);
1187 if (msg_controllen < sizeof (struct target_cmsghdr))
1188 goto the_end;
1189 target_cmsg_addr = tswapal(target_msgh->msg_control);
1190 target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0);
1191 if (!target_cmsg)
1192 return -TARGET_EFAULT;
1193
1194 while (cmsg && target_cmsg) {
1195 void *data = CMSG_DATA(cmsg);
1196 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1197
1198 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
1199
1200 space += TARGET_CMSG_SPACE(len);
1201 if (space > msg_controllen) {
1202 space -= TARGET_CMSG_SPACE(len);
1203 gemu_log("Target cmsg overflow\n");
1204 break;
1205 }
1206
1207 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
1208 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
1209 target_cmsg->cmsg_len = tswapal(TARGET_CMSG_LEN(len));
1210
1211 if ((cmsg->cmsg_level == TARGET_SOL_SOCKET) &&
1212 (cmsg->cmsg_type == SCM_RIGHTS)) {
1213 int *fd = (int *)data;
1214 int *target_fd = (int *)target_data;
1215 int i, numfds = len / sizeof(int);
1216
1217 for (i = 0; i < numfds; i++)
1218 target_fd[i] = tswap32(fd[i]);
1219 } else if ((cmsg->cmsg_level == TARGET_SOL_SOCKET) &&
1220 (cmsg->cmsg_type == SO_TIMESTAMP) &&
1221 (len == sizeof(struct timeval))) {
1222 /* copy struct timeval to target */
1223 struct timeval *tv = (struct timeval *)data;
1224 struct target_timeval *target_tv =
1225 (struct target_timeval *)target_data;
1226
1227 target_tv->tv_sec = tswapal(tv->tv_sec);
1228 target_tv->tv_usec = tswapal(tv->tv_usec);
1229 } else {
1230 gemu_log("Unsupported ancillary data: %d/%d\n",
1231 cmsg->cmsg_level, cmsg->cmsg_type);
1232 memcpy(target_data, data, len);
1233 }
1234
1235 cmsg = CMSG_NXTHDR(msgh, cmsg);
1236 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
1237 }
1238 unlock_user(target_cmsg, target_cmsg_addr, space);
1239 the_end:
1240 target_msgh->msg_controllen = tswapal(space);
1241 return 0;
1242 }
1243
1244 /* do_setsockopt() Must return target values and target errnos. */
1245 static abi_long do_setsockopt(int sockfd, int level, int optname,
1246 abi_ulong optval_addr, socklen_t optlen)
1247 {
1248 abi_long ret;
1249 int val;
1250 struct ip_mreqn *ip_mreq;
1251 struct ip_mreq_source *ip_mreq_source;
1252
1253 switch(level) {
1254 case SOL_TCP:
1255 /* TCP options all take an 'int' value. */
1256 if (optlen < sizeof(uint32_t))
1257 return -TARGET_EINVAL;
1258
1259 if (get_user_u32(val, optval_addr))
1260 return -TARGET_EFAULT;
1261 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
1262 break;
1263 case SOL_IP:
1264 switch(optname) {
1265 case IP_TOS:
1266 case IP_TTL:
1267 case IP_HDRINCL:
1268 case IP_ROUTER_ALERT:
1269 case IP_RECVOPTS:
1270 case IP_RETOPTS:
1271 case IP_PKTINFO:
1272 case IP_MTU_DISCOVER:
1273 case IP_RECVERR:
1274 case IP_RECVTOS:
1275 #ifdef IP_FREEBIND
1276 case IP_FREEBIND:
1277 #endif
1278 case IP_MULTICAST_TTL:
1279 case IP_MULTICAST_LOOP:
1280 val = 0;
1281 if (optlen >= sizeof(uint32_t)) {
1282 if (get_user_u32(val, optval_addr))
1283 return -TARGET_EFAULT;
1284 } else if (optlen >= 1) {
1285 if (get_user_u8(val, optval_addr))
1286 return -TARGET_EFAULT;
1287 }
1288 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
1289 break;
1290 case IP_ADD_MEMBERSHIP:
1291 case IP_DROP_MEMBERSHIP:
1292 if (optlen < sizeof (struct target_ip_mreq) ||
1293 optlen > sizeof (struct target_ip_mreqn))
1294 return -TARGET_EINVAL;
1295
1296 ip_mreq = (struct ip_mreqn *) alloca(optlen);
1297 target_to_host_ip_mreq(ip_mreq, optval_addr, optlen);
1298 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq, optlen));
1299 break;
1300
1301 case IP_BLOCK_SOURCE:
1302 case IP_UNBLOCK_SOURCE:
1303 case IP_ADD_SOURCE_MEMBERSHIP:
1304 case IP_DROP_SOURCE_MEMBERSHIP:
1305 if (optlen != sizeof (struct target_ip_mreq_source))
1306 return -TARGET_EINVAL;
1307
1308 ip_mreq_source = lock_user(VERIFY_READ, optval_addr, optlen, 1);
1309 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq_source, optlen));
1310 unlock_user (ip_mreq_source, optval_addr, 0);
1311 break;
1312
1313 default:
1314 goto unimplemented;
1315 }
1316 break;
1317 case SOL_RAW:
1318 switch (optname) {
1319 case ICMP_FILTER:
1320 /* struct icmp_filter takes an u32 value */
1321 if (optlen < sizeof(uint32_t)) {
1322 return -TARGET_EINVAL;
1323 }
1324
1325 if (get_user_u32(val, optval_addr)) {
1326 return -TARGET_EFAULT;
1327 }
1328 ret = get_errno(setsockopt(sockfd, level, optname,
1329 &val, sizeof(val)));
1330 break;
1331
1332 default:
1333 goto unimplemented;
1334 }
1335 break;
1336 case TARGET_SOL_SOCKET:
1337 switch (optname) {
1338 case TARGET_SO_RCVTIMEO:
1339 {
1340 struct timeval tv;
1341
1342 optname = SO_RCVTIMEO;
1343
1344 set_timeout:
1345 if (optlen != sizeof(struct target_timeval)) {
1346 return -TARGET_EINVAL;
1347 }
1348
1349 if (copy_from_user_timeval(&tv, optval_addr)) {
1350 return -TARGET_EFAULT;
1351 }
1352
1353 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname,
1354 &tv, sizeof(tv)));
1355 return ret;
1356 }
1357 case TARGET_SO_SNDTIMEO:
1358 optname = SO_SNDTIMEO;
1359 goto set_timeout;
1360 /* Options with 'int' argument. */
1361 case TARGET_SO_DEBUG:
1362 optname = SO_DEBUG;
1363 break;
1364 case TARGET_SO_REUSEADDR:
1365 optname = SO_REUSEADDR;
1366 break;
1367 case TARGET_SO_TYPE:
1368 optname = SO_TYPE;
1369 break;
1370 case TARGET_SO_ERROR:
1371 optname = SO_ERROR;
1372 break;
1373 case TARGET_SO_DONTROUTE:
1374 optname = SO_DONTROUTE;
1375 break;
1376 case TARGET_SO_BROADCAST:
1377 optname = SO_BROADCAST;
1378 break;
1379 case TARGET_SO_SNDBUF:
1380 optname = SO_SNDBUF;
1381 break;
1382 case TARGET_SO_RCVBUF:
1383 optname = SO_RCVBUF;
1384 break;
1385 case TARGET_SO_KEEPALIVE:
1386 optname = SO_KEEPALIVE;
1387 break;
1388 case TARGET_SO_OOBINLINE:
1389 optname = SO_OOBINLINE;
1390 break;
1391 case TARGET_SO_NO_CHECK:
1392 optname = SO_NO_CHECK;
1393 break;
1394 case TARGET_SO_PRIORITY:
1395 optname = SO_PRIORITY;
1396 break;
1397 #ifdef SO_BSDCOMPAT
1398 case TARGET_SO_BSDCOMPAT:
1399 optname = SO_BSDCOMPAT;
1400 break;
1401 #endif
1402 case TARGET_SO_PASSCRED:
1403 optname = SO_PASSCRED;
1404 break;
1405 case TARGET_SO_TIMESTAMP:
1406 optname = SO_TIMESTAMP;
1407 break;
1408 case TARGET_SO_RCVLOWAT:
1409 optname = SO_RCVLOWAT;
1410 break;
1411 break;
1412 default:
1413 goto unimplemented;
1414 }
1415 if (optlen < sizeof(uint32_t))
1416 return -TARGET_EINVAL;
1417
1418 if (get_user_u32(val, optval_addr))
1419 return -TARGET_EFAULT;
1420 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
1421 break;
1422 default:
1423 unimplemented:
1424 gemu_log("Unsupported setsockopt level=%d optname=%d\n", level, optname);
1425 ret = -TARGET_ENOPROTOOPT;
1426 }
1427 return ret;
1428 }
1429
1430 /* do_getsockopt() Must return target values and target errnos. */
1431 static abi_long do_getsockopt(int sockfd, int level, int optname,
1432 abi_ulong optval_addr, abi_ulong optlen)
1433 {
1434 abi_long ret;
1435 int len, val;
1436 socklen_t lv;
1437
1438 switch(level) {
1439 case TARGET_SOL_SOCKET:
1440 level = SOL_SOCKET;
1441 switch (optname) {
1442 /* These don't just return a single integer */
1443 case TARGET_SO_LINGER:
1444 case TARGET_SO_RCVTIMEO:
1445 case TARGET_SO_SNDTIMEO:
1446 case TARGET_SO_PEERNAME:
1447 goto unimplemented;
1448 case TARGET_SO_PEERCRED: {
1449 struct ucred cr;
1450 socklen_t crlen;
1451 struct target_ucred *tcr;
1452
1453 if (get_user_u32(len, optlen)) {
1454 return -TARGET_EFAULT;
1455 }
1456 if (len < 0) {
1457 return -TARGET_EINVAL;
1458 }
1459
1460 crlen = sizeof(cr);
1461 ret = get_errno(getsockopt(sockfd, level, SO_PEERCRED,
1462 &cr, &crlen));
1463 if (ret < 0) {
1464 return ret;
1465 }
1466 if (len > crlen) {
1467 len = crlen;
1468 }
1469 if (!lock_user_struct(VERIFY_WRITE, tcr, optval_addr, 0)) {
1470 return -TARGET_EFAULT;
1471 }
1472 __put_user(cr.pid, &tcr->pid);
1473 __put_user(cr.uid, &tcr->uid);
1474 __put_user(cr.gid, &tcr->gid);
1475 unlock_user_struct(tcr, optval_addr, 1);
1476 if (put_user_u32(len, optlen)) {
1477 return -TARGET_EFAULT;
1478 }
1479 break;
1480 }
1481 /* Options with 'int' argument. */
1482 case TARGET_SO_DEBUG:
1483 optname = SO_DEBUG;
1484 goto int_case;
1485 case TARGET_SO_REUSEADDR:
1486 optname = SO_REUSEADDR;
1487 goto int_case;
1488 case TARGET_SO_TYPE:
1489 optname = SO_TYPE;
1490 goto int_case;
1491 case TARGET_SO_ERROR:
1492 optname = SO_ERROR;
1493 goto int_case;
1494 case TARGET_SO_DONTROUTE:
1495 optname = SO_DONTROUTE;
1496 goto int_case;
1497 case TARGET_SO_BROADCAST:
1498 optname = SO_BROADCAST;
1499 goto int_case;
1500 case TARGET_SO_SNDBUF:
1501 optname = SO_SNDBUF;
1502 goto int_case;
1503 case TARGET_SO_RCVBUF:
1504 optname = SO_RCVBUF;
1505 goto int_case;
1506 case TARGET_SO_KEEPALIVE:
1507 optname = SO_KEEPALIVE;
1508 goto int_case;
1509 case TARGET_SO_OOBINLINE:
1510 optname = SO_OOBINLINE;
1511 goto int_case;
1512 case TARGET_SO_NO_CHECK:
1513 optname = SO_NO_CHECK;
1514 goto int_case;
1515 case TARGET_SO_PRIORITY:
1516 optname = SO_PRIORITY;
1517 goto int_case;
1518 #ifdef SO_BSDCOMPAT
1519 case TARGET_SO_BSDCOMPAT:
1520 optname = SO_BSDCOMPAT;
1521 goto int_case;
1522 #endif
1523 case TARGET_SO_PASSCRED:
1524 optname = SO_PASSCRED;
1525 goto int_case;
1526 case TARGET_SO_TIMESTAMP:
1527 optname = SO_TIMESTAMP;
1528 goto int_case;
1529 case TARGET_SO_RCVLOWAT:
1530 optname = SO_RCVLOWAT;
1531 goto int_case;
1532 default:
1533 goto int_case;
1534 }
1535 break;
1536 case SOL_TCP:
1537 /* TCP options all take an 'int' value. */
1538 int_case:
1539 if (get_user_u32(len, optlen))
1540 return -TARGET_EFAULT;
1541 if (len < 0)
1542 return -TARGET_EINVAL;
1543 lv = sizeof(lv);
1544 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
1545 if (ret < 0)
1546 return ret;
1547 if (len > lv)
1548 len = lv;
1549 if (len == 4) {
1550 if (put_user_u32(val, optval_addr))
1551 return -TARGET_EFAULT;
1552 } else {
1553 if (put_user_u8(val, optval_addr))
1554 return -TARGET_EFAULT;
1555 }
1556 if (put_user_u32(len, optlen))
1557 return -TARGET_EFAULT;
1558 break;
1559 case SOL_IP:
1560 switch(optname) {
1561 case IP_TOS:
1562 case IP_TTL:
1563 case IP_HDRINCL:
1564 case IP_ROUTER_ALERT:
1565 case IP_RECVOPTS:
1566 case IP_RETOPTS:
1567 case IP_PKTINFO:
1568 case IP_MTU_DISCOVER:
1569 case IP_RECVERR:
1570 case IP_RECVTOS:
1571 #ifdef IP_FREEBIND
1572 case IP_FREEBIND:
1573 #endif
1574 case IP_MULTICAST_TTL:
1575 case IP_MULTICAST_LOOP:
1576 if (get_user_u32(len, optlen))
1577 return -TARGET_EFAULT;
1578 if (len < 0)
1579 return -TARGET_EINVAL;
1580 lv = sizeof(lv);
1581 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
1582 if (ret < 0)
1583 return ret;
1584 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
1585 len = 1;
1586 if (put_user_u32(len, optlen)
1587 || put_user_u8(val, optval_addr))
1588 return -TARGET_EFAULT;
1589 } else {
1590 if (len > sizeof(int))
1591 len = sizeof(int);
1592 if (put_user_u32(len, optlen)
1593 || put_user_u32(val, optval_addr))
1594 return -TARGET_EFAULT;
1595 }
1596 break;
1597 default:
1598 ret = -TARGET_ENOPROTOOPT;
1599 break;
1600 }
1601 break;
1602 default:
1603 unimplemented:
1604 gemu_log("getsockopt level=%d optname=%d not yet supported\n",
1605 level, optname);
1606 ret = -TARGET_EOPNOTSUPP;
1607 break;
1608 }
1609 return ret;
1610 }
1611
1612 static struct iovec *lock_iovec(int type, abi_ulong target_addr,
1613 int count, int copy)
1614 {
1615 struct target_iovec *target_vec;
1616 struct iovec *vec;
1617 abi_ulong total_len, max_len;
1618 int i;
1619
1620 if (count == 0) {
1621 errno = 0;
1622 return NULL;
1623 }
1624 if (count < 0 || count > IOV_MAX) {
1625 errno = EINVAL;
1626 return NULL;
1627 }
1628
1629 vec = calloc(count, sizeof(struct iovec));
1630 if (vec == NULL) {
1631 errno = ENOMEM;
1632 return NULL;
1633 }
1634
1635 target_vec = lock_user(VERIFY_READ, target_addr,
1636 count * sizeof(struct target_iovec), 1);
1637 if (target_vec == NULL) {
1638 errno = EFAULT;
1639 goto fail2;
1640 }
1641
1642 /* ??? If host page size > target page size, this will result in a
1643 value larger than what we can actually support. */
1644 max_len = 0x7fffffff & TARGET_PAGE_MASK;
1645 total_len = 0;
1646
1647 for (i = 0; i < count; i++) {
1648 abi_ulong base = tswapal(target_vec[i].iov_base);
1649 abi_long len = tswapal(target_vec[i].iov_len);
1650
1651 if (len < 0) {
1652 errno = EINVAL;
1653 goto fail;
1654 } else if (len == 0) {
1655 /* Zero length pointer is ignored. */
1656 vec[i].iov_base = 0;
1657 } else {
1658 vec[i].iov_base = lock_user(type, base, len, copy);
1659 if (!vec[i].iov_base) {
1660 errno = EFAULT;
1661 goto fail;
1662 }
1663 if (len > max_len - total_len) {
1664 len = max_len - total_len;
1665 }
1666 }
1667 vec[i].iov_len = len;
1668 total_len += len;
1669 }
1670
1671 unlock_user(target_vec, target_addr, 0);
1672 return vec;
1673
1674 fail:
1675 free(vec);
1676 fail2:
1677 unlock_user(target_vec, target_addr, 0);
1678 return NULL;
1679 }
1680
1681 static void unlock_iovec(struct iovec *vec, abi_ulong target_addr,
1682 int count, int copy)
1683 {
1684 struct target_iovec *target_vec;
1685 int i;
1686
1687 target_vec = lock_user(VERIFY_READ, target_addr,
1688 count * sizeof(struct target_iovec), 1);
1689 if (target_vec) {
1690 for (i = 0; i < count; i++) {
1691 abi_ulong base = tswapal(target_vec[i].iov_base);
1692 abi_long len = tswapal(target_vec[i].iov_base);
1693 if (len < 0) {
1694 break;
1695 }
1696 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
1697 }
1698 unlock_user(target_vec, target_addr, 0);
1699 }
1700
1701 free(vec);
1702 }
1703
1704 static inline void target_to_host_sock_type(int *type)
1705 {
1706 int host_type = 0;
1707 int target_type = *type;
1708
1709 switch (target_type & TARGET_SOCK_TYPE_MASK) {
1710 case TARGET_SOCK_DGRAM:
1711 host_type = SOCK_DGRAM;
1712 break;
1713 case TARGET_SOCK_STREAM:
1714 host_type = SOCK_STREAM;
1715 break;
1716 default:
1717 host_type = target_type & TARGET_SOCK_TYPE_MASK;
1718 break;
1719 }
1720 if (target_type & TARGET_SOCK_CLOEXEC) {
1721 host_type |= SOCK_CLOEXEC;
1722 }
1723 if (target_type & TARGET_SOCK_NONBLOCK) {
1724 host_type |= SOCK_NONBLOCK;
1725 }
1726 *type = host_type;
1727 }
1728
1729 /* do_socket() Must return target values and target errnos. */
1730 static abi_long do_socket(int domain, int type, int protocol)
1731 {
1732 target_to_host_sock_type(&type);
1733
1734 if (domain == PF_NETLINK)
1735 return -EAFNOSUPPORT; /* do not NETLINK socket connections possible */
1736 return get_errno(socket(domain, type, protocol));
1737 }
1738
1739 /* do_bind() Must return target values and target errnos. */
1740 static abi_long do_bind(int sockfd, abi_ulong target_addr,
1741 socklen_t addrlen)
1742 {
1743 void *addr;
1744 abi_long ret;
1745
1746 if ((int)addrlen < 0) {
1747 return -TARGET_EINVAL;
1748 }
1749
1750 addr = alloca(addrlen+1);
1751
1752 ret = target_to_host_sockaddr(addr, target_addr, addrlen);
1753 if (ret)
1754 return ret;
1755
1756 return get_errno(bind(sockfd, addr, addrlen));
1757 }
1758
1759 /* do_connect() Must return target values and target errnos. */
1760 static abi_long do_connect(int sockfd, abi_ulong target_addr,
1761 socklen_t addrlen)
1762 {
1763 void *addr;
1764 abi_long ret;
1765
1766 if ((int)addrlen < 0) {
1767 return -TARGET_EINVAL;
1768 }
1769
1770 addr = alloca(addrlen);
1771
1772 ret = target_to_host_sockaddr(addr, target_addr, addrlen);
1773 if (ret)
1774 return ret;
1775
1776 return get_errno(connect(sockfd, addr, addrlen));
1777 }
1778
1779 /* do_sendrecvmsg() Must return target values and target errnos. */
1780 static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg,
1781 int flags, int send)
1782 {
1783 abi_long ret, len;
1784 struct target_msghdr *msgp;
1785 struct msghdr msg;
1786 int count;
1787 struct iovec *vec;
1788 abi_ulong target_vec;
1789
1790 /* FIXME */
1791 if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE,
1792 msgp,
1793 target_msg,
1794 send ? 1 : 0))
1795 return -TARGET_EFAULT;
1796 if (msgp->msg_name) {
1797 msg.msg_namelen = tswap32(msgp->msg_namelen);
1798 msg.msg_name = alloca(msg.msg_namelen);
1799 ret = target_to_host_sockaddr(msg.msg_name, tswapal(msgp->msg_name),
1800 msg.msg_namelen);
1801 if (ret) {
1802 goto out2;
1803 }
1804 } else {
1805 msg.msg_name = NULL;
1806 msg.msg_namelen = 0;
1807 }
1808 msg.msg_controllen = 2 * tswapal(msgp->msg_controllen);
1809 msg.msg_control = alloca(msg.msg_controllen);
1810 msg.msg_flags = tswap32(msgp->msg_flags);
1811
1812 count = tswapal(msgp->msg_iovlen);
1813 target_vec = tswapal(msgp->msg_iov);
1814 vec = lock_iovec(send ? VERIFY_READ : VERIFY_WRITE,
1815 target_vec, count, send);
1816 if (vec == NULL) {
1817 ret = -host_to_target_errno(errno);
1818 goto out2;
1819 }
1820 msg.msg_iovlen = count;
1821 msg.msg_iov = vec;
1822
1823 if (send) {
1824 ret = target_to_host_cmsg(&msg, msgp);
1825 if (ret == 0)
1826 ret = get_errno(sendmsg(fd, &msg, flags));
1827 } else {
1828 ret = get_errno(recvmsg(fd, &msg, flags));
1829 if (!is_error(ret)) {
1830 len = ret;
1831 ret = host_to_target_cmsg(msgp, &msg);
1832 if (!is_error(ret)) {
1833 msgp->msg_namelen = tswap32(msg.msg_namelen);
1834 if (msg.msg_name != NULL) {
1835 ret = host_to_target_sockaddr(tswapal(msgp->msg_name),
1836 msg.msg_name, msg.msg_namelen);
1837 if (ret) {
1838 goto out;
1839 }
1840 }
1841
1842 ret = len;
1843 }
1844 }
1845 }
1846
1847 out:
1848 unlock_iovec(vec, target_vec, count, !send);
1849 out2:
1850 unlock_user_struct(msgp, target_msg, send ? 0 : 1);
1851 return ret;
1852 }
1853
1854 /* If we don't have a system accept4() then just call accept.
1855 * The callsites to do_accept4() will ensure that they don't
1856 * pass a non-zero flags argument in this config.
1857 */
1858 #ifndef CONFIG_ACCEPT4
1859 static inline int accept4(int sockfd, struct sockaddr *addr,
1860 socklen_t *addrlen, int flags)
1861 {
1862 assert(flags == 0);
1863 return accept(sockfd, addr, addrlen);
1864 }
1865 #endif
1866
1867 /* do_accept4() Must return target values and target errnos. */
1868 static abi_long do_accept4(int fd, abi_ulong target_addr,
1869 abi_ulong target_addrlen_addr, int flags)
1870 {
1871 socklen_t addrlen;
1872 void *addr;
1873 abi_long ret;
1874
1875 if (target_addr == 0) {
1876 return get_errno(accept4(fd, NULL, NULL, flags));
1877 }
1878
1879 /* linux returns EINVAL if addrlen pointer is invalid */
1880 if (get_user_u32(addrlen, target_addrlen_addr))
1881 return -TARGET_EINVAL;
1882
1883 if ((int)addrlen < 0) {
1884 return -TARGET_EINVAL;
1885 }
1886
1887 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
1888 return -TARGET_EINVAL;
1889
1890 addr = alloca(addrlen);
1891
1892 ret = get_errno(accept4(fd, addr, &addrlen, flags));
1893 if (!is_error(ret)) {
1894 host_to_target_sockaddr(target_addr, addr, addrlen);
1895 if (put_user_u32(addrlen, target_addrlen_addr))
1896 ret = -TARGET_EFAULT;
1897 }
1898 return ret;
1899 }
1900
1901 /* do_getpeername() Must return target values and target errnos. */
1902 static abi_long do_getpeername(int fd, abi_ulong target_addr,
1903 abi_ulong target_addrlen_addr)
1904 {
1905 socklen_t addrlen;
1906 void *addr;
1907 abi_long ret;
1908
1909 if (get_user_u32(addrlen, target_addrlen_addr))
1910 return -TARGET_EFAULT;
1911
1912 if ((int)addrlen < 0) {
1913 return -TARGET_EINVAL;
1914 }
1915
1916 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
1917 return -TARGET_EFAULT;
1918
1919 addr = alloca(addrlen);
1920
1921 ret = get_errno(getpeername(fd, addr, &addrlen));
1922 if (!is_error(ret)) {
1923 host_to_target_sockaddr(target_addr, addr, addrlen);
1924 if (put_user_u32(addrlen, target_addrlen_addr))
1925 ret = -TARGET_EFAULT;
1926 }
1927 return ret;
1928 }
1929
1930 /* do_getsockname() Must return target values and target errnos. */
1931 static abi_long do_getsockname(int fd, abi_ulong target_addr,
1932 abi_ulong target_addrlen_addr)
1933 {
1934 socklen_t addrlen;
1935 void *addr;
1936 abi_long ret;
1937
1938 if (get_user_u32(addrlen, target_addrlen_addr))
1939 return -TARGET_EFAULT;
1940
1941 if ((int)addrlen < 0) {
1942 return -TARGET_EINVAL;
1943 }
1944
1945 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
1946 return -TARGET_EFAULT;
1947
1948 addr = alloca(addrlen);
1949
1950 ret = get_errno(getsockname(fd, addr, &addrlen));
1951 if (!is_error(ret)) {
1952 host_to_target_sockaddr(target_addr, addr, addrlen);
1953 if (put_user_u32(addrlen, target_addrlen_addr))
1954 ret = -TARGET_EFAULT;
1955 }
1956 return ret;
1957 }
1958
1959 /* do_socketpair() Must return target values and target errnos. */
1960 static abi_long do_socketpair(int domain, int type, int protocol,
1961 abi_ulong target_tab_addr)
1962 {
1963 int tab[2];
1964 abi_long ret;
1965
1966 target_to_host_sock_type(&type);
1967
1968 ret = get_errno(socketpair(domain, type, protocol, tab));
1969 if (!is_error(ret)) {
1970 if (put_user_s32(tab[0], target_tab_addr)
1971 || put_user_s32(tab[1], target_tab_addr + sizeof(tab[0])))
1972 ret = -TARGET_EFAULT;
1973 }
1974 return ret;
1975 }
1976
1977 /* do_sendto() Must return target values and target errnos. */
1978 static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags,
1979 abi_ulong target_addr, socklen_t addrlen)
1980 {
1981 void *addr;
1982 void *host_msg;
1983 abi_long ret;
1984
1985 if ((int)addrlen < 0) {
1986 return -TARGET_EINVAL;
1987 }
1988
1989 host_msg = lock_user(VERIFY_READ, msg, len, 1);
1990 if (!host_msg)
1991 return -TARGET_EFAULT;
1992 if (target_addr) {
1993 addr = alloca(addrlen);
1994 ret = target_to_host_sockaddr(addr, target_addr, addrlen);
1995 if (ret) {
1996 unlock_user(host_msg, msg, 0);
1997 return ret;
1998 }
1999 ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen));
2000 } else {
2001 ret = get_errno(send(fd, host_msg, len, flags));
2002 }
2003 unlock_user(host_msg, msg, 0);
2004 return ret;
2005 }
2006
2007 /* do_recvfrom() Must return target values and target errnos. */
2008 static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags,
2009 abi_ulong target_addr,
2010 abi_ulong target_addrlen)
2011 {
2012 socklen_t addrlen;
2013 void *addr;
2014 void *host_msg;
2015 abi_long ret;
2016
2017 host_msg = lock_user(VERIFY_WRITE, msg, len, 0);
2018 if (!host_msg)
2019 return -TARGET_EFAULT;
2020 if (target_addr) {
2021 if (get_user_u32(addrlen, target_addrlen)) {
2022 ret = -TARGET_EFAULT;
2023 goto fail;
2024 }
2025 if ((int)addrlen < 0) {
2026 ret = -TARGET_EINVAL;
2027 goto fail;
2028 }
2029 addr = alloca(addrlen);
2030 ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen));
2031 } else {
2032 addr = NULL; /* To keep compiler quiet. */
2033 ret = get_errno(qemu_recv(fd, host_msg, len, flags));
2034 }
2035 if (!is_error(ret)) {
2036 if (target_addr) {
2037 host_to_target_sockaddr(target_addr, addr, addrlen);
2038 if (put_user_u32(addrlen, target_addrlen)) {
2039 ret = -TARGET_EFAULT;
2040 goto fail;
2041 }
2042 }
2043 unlock_user(host_msg, msg, len);
2044 } else {
2045 fail:
2046 unlock_user(host_msg, msg, 0);
2047 }
2048 return ret;
2049 }
2050
2051 #ifdef TARGET_NR_socketcall
2052 /* do_socketcall() Must return target values and target errnos. */
2053 static abi_long do_socketcall(int num, abi_ulong vptr)
2054 {
2055 abi_long ret;
2056 const int n = sizeof(abi_ulong);
2057
2058 switch(num) {
2059 case SOCKOP_socket:
2060 {
2061 abi_ulong domain, type, protocol;
2062
2063 if (get_user_ual(domain, vptr)
2064 || get_user_ual(type, vptr + n)
2065 || get_user_ual(protocol, vptr + 2 * n))
2066 return -TARGET_EFAULT;
2067
2068 ret = do_socket(domain, type, protocol);
2069 }
2070 break;
2071 case SOCKOP_bind:
2072 {
2073 abi_ulong sockfd;
2074 abi_ulong target_addr;
2075 socklen_t addrlen;
2076
2077 if (get_user_ual(sockfd, vptr)
2078 || get_user_ual(target_addr, vptr + n)
2079 || get_user_ual(addrlen, vptr + 2 * n))
2080 return -TARGET_EFAULT;
2081
2082 ret = do_bind(sockfd, target_addr, addrlen);
2083 }
2084 break;
2085 case SOCKOP_connect:
2086 {
2087 abi_ulong sockfd;
2088 abi_ulong target_addr;
2089 socklen_t addrlen;
2090
2091 if (get_user_ual(sockfd, vptr)
2092 || get_user_ual(target_addr, vptr + n)
2093 || get_user_ual(addrlen, vptr + 2 * n))
2094 return -TARGET_EFAULT;
2095
2096 ret = do_connect(sockfd, target_addr, addrlen);
2097 }
2098 break;
2099 case SOCKOP_listen:
2100 {
2101 abi_ulong sockfd, backlog;
2102
2103 if (get_user_ual(sockfd, vptr)
2104 || get_user_ual(backlog, vptr + n))
2105 return -TARGET_EFAULT;
2106
2107 ret = get_errno(listen(sockfd, backlog));
2108 }
2109 break;
2110 case SOCKOP_accept:
2111 {
2112 abi_ulong sockfd;
2113 abi_ulong target_addr, target_addrlen;
2114
2115 if (get_user_ual(sockfd, vptr)
2116 || get_user_ual(target_addr, vptr + n)
2117 || get_user_ual(target_addrlen, vptr + 2 * n))
2118 return -TARGET_EFAULT;
2119
2120 ret = do_accept4(sockfd, target_addr, target_addrlen, 0);
2121 }
2122 break;
2123 case SOCKOP_getsockname:
2124 {
2125 abi_ulong sockfd;
2126 abi_ulong target_addr, target_addrlen;
2127
2128 if (get_user_ual(sockfd, vptr)
2129 || get_user_ual(target_addr, vptr + n)
2130 || get_user_ual(target_addrlen, vptr + 2 * n))
2131 return -TARGET_EFAULT;
2132
2133 ret = do_getsockname(sockfd, target_addr, target_addrlen);
2134 }
2135 break;
2136 case SOCKOP_getpeername:
2137 {
2138 abi_ulong sockfd;
2139 abi_ulong target_addr, target_addrlen;
2140
2141 if (get_user_ual(sockfd, vptr)
2142 || get_user_ual(target_addr, vptr + n)
2143 || get_user_ual(target_addrlen, vptr + 2 * n))
2144 return -TARGET_EFAULT;
2145
2146 ret = do_getpeername(sockfd, target_addr, target_addrlen);
2147 }
2148 break;
2149 case SOCKOP_socketpair:
2150 {
2151 abi_ulong domain, type, protocol;
2152 abi_ulong tab;
2153
2154 if (get_user_ual(domain, vptr)
2155 || get_user_ual(type, vptr + n)
2156 || get_user_ual(protocol, vptr + 2 * n)
2157 || get_user_ual(tab, vptr + 3 * n))
2158 return -TARGET_EFAULT;
2159
2160 ret = do_socketpair(domain, type, protocol, tab);
2161 }
2162 break;
2163 case SOCKOP_send:
2164 {
2165 abi_ulong sockfd;
2166 abi_ulong msg;
2167 size_t len;
2168 abi_ulong flags;
2169
2170 if (get_user_ual(sockfd, vptr)
2171 || get_user_ual(msg, vptr + n)
2172 || get_user_ual(len, vptr + 2 * n)
2173 || get_user_ual(flags, vptr + 3 * n))
2174 return -TARGET_EFAULT;
2175
2176 ret = do_sendto(sockfd, msg, len, flags, 0, 0);
2177 }
2178 break;
2179 case SOCKOP_recv:
2180 {
2181 abi_ulong sockfd;
2182 abi_ulong msg;
2183 size_t len;
2184 abi_ulong flags;
2185
2186 if (get_user_ual(sockfd, vptr)
2187 || get_user_ual(msg, vptr + n)
2188 || get_user_ual(len, vptr + 2 * n)
2189 || get_user_ual(flags, vptr + 3 * n))
2190 return -TARGET_EFAULT;
2191
2192 ret = do_recvfrom(sockfd, msg, len, flags, 0, 0);
2193 }
2194 break;
2195 case SOCKOP_sendto:
2196 {
2197 abi_ulong sockfd;
2198 abi_ulong msg;
2199 size_t len;
2200 abi_ulong flags;
2201 abi_ulong addr;
2202 socklen_t addrlen;
2203
2204 if (get_user_ual(sockfd, vptr)
2205 || get_user_ual(msg, vptr + n)
2206 || get_user_ual(len, vptr + 2 * n)
2207 || get_user_ual(flags, vptr + 3 * n)
2208 || get_user_ual(addr, vptr + 4 * n)
2209 || get_user_ual(addrlen, vptr + 5 * n))
2210 return -TARGET_EFAULT;
2211
2212 ret = do_sendto(sockfd, msg, len, flags, addr, addrlen);
2213 }
2214 break;
2215 case SOCKOP_recvfrom:
2216 {
2217 abi_ulong sockfd;
2218 abi_ulong msg;
2219 size_t len;
2220 abi_ulong flags;
2221 abi_ulong addr;
2222 socklen_t addrlen;
2223
2224 if (get_user_ual(sockfd, vptr)
2225 || get_user_ual(msg, vptr + n)
2226 || get_user_ual(len, vptr + 2 * n)
2227 || get_user_ual(flags, vptr + 3 * n)
2228 || get_user_ual(addr, vptr + 4 * n)
2229 || get_user_ual(addrlen, vptr + 5 * n))
2230 return -TARGET_EFAULT;
2231
2232 ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen);
2233 }
2234 break;
2235 case SOCKOP_shutdown:
2236 {
2237 abi_ulong sockfd, how;
2238
2239 if (get_user_ual(sockfd, vptr)
2240 || get_user_ual(how, vptr + n))
2241 return -TARGET_EFAULT;
2242
2243 ret = get_errno(shutdown(sockfd, how));
2244 }
2245 break;
2246 case SOCKOP_sendmsg:
2247 case SOCKOP_recvmsg:
2248 {
2249 abi_ulong fd;
2250 abi_ulong target_msg;
2251 abi_ulong flags;
2252
2253 if (get_user_ual(fd, vptr)
2254 || get_user_ual(target_msg, vptr + n)
2255 || get_user_ual(flags, vptr + 2 * n))
2256 return -TARGET_EFAULT;
2257
2258 ret = do_sendrecvmsg(fd, target_msg, flags,
2259 (num == SOCKOP_sendmsg));
2260 }
2261 break;
2262 case SOCKOP_setsockopt:
2263 {
2264 abi_ulong sockfd;
2265 abi_ulong level;
2266 abi_ulong optname;
2267 abi_ulong optval;
2268 socklen_t optlen;
2269
2270 if (get_user_ual(sockfd, vptr)
2271 || get_user_ual(level, vptr + n)
2272 || get_user_ual(optname, vptr + 2 * n)
2273 || get_user_ual(optval, vptr + 3 * n)
2274 || get_user_ual(optlen, vptr + 4 * n))
2275 return -TARGET_EFAULT;
2276
2277 ret = do_setsockopt(sockfd, level, optname, optval, optlen);
2278 }
2279 break;
2280 case SOCKOP_getsockopt:
2281 {
2282 abi_ulong sockfd;
2283 abi_ulong level;
2284 abi_ulong optname;
2285 abi_ulong optval;
2286 socklen_t optlen;
2287
2288 if (get_user_ual(sockfd, vptr)
2289 || get_user_ual(level, vptr + n)
2290 || get_user_ual(optname, vptr + 2 * n)
2291 || get_user_ual(optval, vptr + 3 * n)
2292 || get_user_ual(optlen, vptr + 4 * n))
2293 return -TARGET_EFAULT;
2294
2295 ret = do_getsockopt(sockfd, level, optname, optval, optlen);
2296 }
2297 break;
2298 default:
2299 gemu_log("Unsupported socketcall: %d\n", num);
2300 ret = -TARGET_ENOSYS;
2301 break;
2302 }
2303 return ret;
2304 }
2305 #endif
2306
2307 #define N_SHM_REGIONS 32
2308
2309 static struct shm_region {
2310 abi_ulong start;
2311 abi_ulong size;
2312 } shm_regions[N_SHM_REGIONS];
2313
2314 struct target_ipc_perm
2315 {
2316 abi_long __key;
2317 abi_ulong uid;
2318 abi_ulong gid;
2319 abi_ulong cuid;
2320 abi_ulong cgid;
2321 unsigned short int mode;
2322 unsigned short int __pad1;
2323 unsigned short int __seq;
2324 unsigned short int __pad2;
2325 abi_ulong __unused1;
2326 abi_ulong __unused2;
2327 };
2328
2329 struct target_semid_ds
2330 {
2331 struct target_ipc_perm sem_perm;
2332 abi_ulong sem_otime;
2333 abi_ulong __unused1;
2334 abi_ulong sem_ctime;
2335 abi_ulong __unused2;
2336 abi_ulong sem_nsems;
2337 abi_ulong __unused3;
2338 abi_ulong __unused4;
2339 };
2340
2341 static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip,
2342 abi_ulong target_addr)
2343 {
2344 struct target_ipc_perm *target_ip;
2345 struct target_semid_ds *target_sd;
2346
2347 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
2348 return -TARGET_EFAULT;
2349 target_ip = &(target_sd->sem_perm);
2350 host_ip->__key = tswapal(target_ip->__key);
2351 host_ip->uid = tswapal(target_ip->uid);
2352 host_ip->gid = tswapal(target_ip->gid);
2353 host_ip->cuid = tswapal(target_ip->cuid);
2354 host_ip->cgid = tswapal(target_ip->cgid);
2355 host_ip->mode = tswap16(target_ip->mode);
2356 unlock_user_struct(target_sd, target_addr, 0);
2357 return 0;
2358 }
2359
2360 static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr,
2361 struct ipc_perm *host_ip)
2362 {
2363 struct target_ipc_perm *target_ip;
2364 struct target_semid_ds *target_sd;
2365
2366 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
2367 return -TARGET_EFAULT;
2368 target_ip = &(target_sd->sem_perm);
2369 target_ip->__key = tswapal(host_ip->__key);
2370 target_ip->uid = tswapal(host_ip->uid);
2371 target_ip->gid = tswapal(host_ip->gid);
2372 target_ip->cuid = tswapal(host_ip->cuid);
2373 target_ip->cgid = tswapal(host_ip->cgid);
2374 target_ip->mode = tswap16(host_ip->mode);
2375 unlock_user_struct(target_sd, target_addr, 1);
2376 return 0;
2377 }
2378
2379 static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd,
2380 abi_ulong target_addr)
2381 {
2382 struct target_semid_ds *target_sd;
2383
2384 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
2385 return -TARGET_EFAULT;
2386 if (target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr))
2387 return -TARGET_EFAULT;
2388 host_sd->sem_nsems = tswapal(target_sd->sem_nsems);
2389 host_sd->sem_otime = tswapal(target_sd->sem_otime);
2390 host_sd->sem_ctime = tswapal(target_sd->sem_ctime);
2391 unlock_user_struct(target_sd, target_addr, 0);
2392 return 0;
2393 }
2394
2395 static inline abi_long host_to_target_semid_ds(abi_ulong target_addr,
2396 struct semid_ds *host_sd)
2397 {
2398 struct target_semid_ds *target_sd;
2399
2400 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
2401 return -TARGET_EFAULT;
2402 if (host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm)))
2403 return -TARGET_EFAULT;
2404 target_sd->sem_nsems = tswapal(host_sd->sem_nsems);
2405 target_sd->sem_otime = tswapal(host_sd->sem_otime);
2406 target_sd->sem_ctime = tswapal(host_sd->sem_ctime);
2407 unlock_user_struct(target_sd, target_addr, 1);
2408 return 0;
2409 }
2410
2411 struct target_seminfo {
2412 int semmap;
2413 int semmni;
2414 int semmns;
2415 int semmnu;
2416 int semmsl;
2417 int semopm;
2418 int semume;
2419 int semusz;
2420 int semvmx;
2421 int semaem;
2422 };
2423
2424 static inline abi_long host_to_target_seminfo(abi_ulong target_addr,
2425 struct seminfo *host_seminfo)
2426 {
2427 struct target_seminfo *target_seminfo;
2428 if (!lock_user_struct(VERIFY_WRITE, target_seminfo, target_addr, 0))
2429 return -TARGET_EFAULT;
2430 __put_user(host_seminfo->semmap, &target_seminfo->semmap);
2431 __put_user(host_seminfo->semmni, &target_seminfo->semmni);
2432 __put_user(host_seminfo->semmns, &target_seminfo->semmns);
2433 __put_user(host_seminfo->semmnu, &target_seminfo->semmnu);
2434 __put_user(host_seminfo->semmsl, &target_seminfo->semmsl);
2435 __put_user(host_seminfo->semopm, &target_seminfo->semopm);
2436 __put_user(host_seminfo->semume, &target_seminfo->semume);
2437 __put_user(host_seminfo->semusz, &target_seminfo->semusz);
2438 __put_user(host_seminfo->semvmx, &target_seminfo->semvmx);
2439 __put_user(host_seminfo->semaem, &target_seminfo->semaem);
2440 unlock_user_struct(target_seminfo, target_addr, 1);
2441 return 0;
2442 }
2443
2444 union semun {
2445 int val;
2446 struct semid_ds *buf;
2447 unsigned short *array;
2448 struct seminfo *__buf;
2449 };
2450
2451 union target_semun {
2452 int val;
2453 abi_ulong buf;
2454 abi_ulong array;
2455 abi_ulong __buf;
2456 };
2457
2458 static inline abi_long target_to_host_semarray(int semid, unsigned short **host_array,
2459 abi_ulong target_addr)
2460 {
2461 int nsems;
2462 unsigned short *array;
2463 union semun semun;
2464 struct semid_ds semid_ds;
2465 int i, ret;
2466
2467 semun.buf = &semid_ds;
2468
2469 ret = semctl(semid, 0, IPC_STAT, semun);
2470 if (ret == -1)
2471 return get_errno(ret);
2472
2473 nsems = semid_ds.sem_nsems;
2474
2475 *host_array = malloc(nsems*sizeof(unsigned short));
2476 array = lock_user(VERIFY_READ, target_addr,
2477 nsems*sizeof(unsigned short), 1);
2478 if (!array)
2479 return -TARGET_EFAULT;
2480
2481 for(i=0; i<nsems; i++) {
2482 __get_user((*host_array)[i], &array[i]);
2483 }
2484 unlock_user(array, target_addr, 0);
2485
2486 return 0;
2487 }
2488
2489 static inline abi_long host_to_target_semarray(int semid, abi_ulong target_addr,
2490 unsigned short **host_array)
2491 {
2492 int nsems;
2493 unsigned short *array;
2494 union semun semun;
2495 struct semid_ds semid_ds;
2496 int i, ret;
2497
2498 semun.buf = &semid_ds;
2499
2500 ret = semctl(semid, 0, IPC_STAT, semun);
2501 if (ret == -1)
2502 return get_errno(ret);
2503
2504 nsems = semid_ds.sem_nsems;
2505
2506 array = lock_user(VERIFY_WRITE, target_addr,
2507 nsems*sizeof(unsigned short), 0);
2508 if (!array)
2509 return -TARGET_EFAULT;
2510
2511 for(i=0; i<nsems; i++) {
2512 __put_user((*host_array)[i], &array[i]);
2513 }
2514 free(*host_array);
2515 unlock_user(array, target_addr, 1);
2516
2517 return 0;
2518 }
2519
2520 static inline abi_long do_semctl(int semid, int semnum, int cmd,
2521 union target_semun target_su)
2522 {
2523 union semun arg;
2524 struct semid_ds dsarg;
2525 unsigned short *array = NULL;
2526 struct seminfo seminfo;
2527 abi_long ret = -TARGET_EINVAL;
2528 abi_long err;
2529 cmd &= 0xff;
2530
2531 switch( cmd ) {
2532 case GETVAL:
2533 case SETVAL:
2534 arg.val = tswap32(target_su.val);
2535 ret = get_errno(semctl(semid, semnum, cmd, arg));
2536 target_su.val = tswap32(arg.val);
2537 break;
2538 case GETALL:
2539 case SETALL:
2540 err = target_to_host_semarray(semid, &array, target_su.array);
2541 if (err)
2542 return err;
2543 arg.array = array;
2544 ret = get_errno(semctl(semid, semnum, cmd, arg));
2545 err = host_to_target_semarray(semid, target_su.array, &array);
2546 if (err)
2547 return err;
2548 break;
2549 case IPC_STAT:
2550 case IPC_SET:
2551 case SEM_STAT:
2552 err = target_to_host_semid_ds(&dsarg, target_su.buf);
2553 if (err)
2554 return err;
2555 arg.buf = &dsarg;
2556 ret = get_errno(semctl(semid, semnum, cmd, arg));
2557 err = host_to_target_semid_ds(target_su.buf, &dsarg);
2558 if (err)
2559 return err;
2560 break;
2561 case IPC_INFO:
2562 case SEM_INFO:
2563 arg.__buf = &seminfo;
2564 ret = get_errno(semctl(semid, semnum, cmd, arg));
2565 err = host_to_target_seminfo(target_su.__buf, &seminfo);
2566 if (err)
2567 return err;
2568 break;
2569 case IPC_RMID:
2570 case GETPID:
2571 case GETNCNT:
2572 case GETZCNT:
2573 ret = get_errno(semctl(semid, semnum, cmd, NULL));
2574 break;
2575 }
2576
2577 return ret;
2578 }
2579
2580 struct target_sembuf {
2581 unsigned short sem_num;
2582 short sem_op;
2583 short sem_flg;
2584 };
2585
2586 static inline abi_long target_to_host_sembuf(struct sembuf *host_sembuf,
2587 abi_ulong target_addr,
2588 unsigned nsops)
2589 {
2590 struct target_sembuf *target_sembuf;
2591 int i;
2592
2593 target_sembuf = lock_user(VERIFY_READ, target_addr,
2594 nsops*sizeof(struct target_sembuf), 1);
2595 if (!target_sembuf)
2596 return -TARGET_EFAULT;
2597
2598 for(i=0; i<nsops; i++) {
2599 __get_user(host_sembuf[i].sem_num, &target_sembuf[i].sem_num);
2600 __get_user(host_sembuf[i].sem_op, &target_sembuf[i].sem_op);
2601 __get_user(host_sembuf[i].sem_flg, &target_sembuf[i].sem_flg);
2602 }
2603
2604 unlock_user(target_sembuf, target_addr, 0);
2605
2606 return 0;
2607 }
2608
2609 static inline abi_long do_semop(int semid, abi_long ptr, unsigned nsops)
2610 {
2611 struct sembuf sops[nsops];
2612
2613 if (target_to_host_sembuf(sops, ptr, nsops))
2614 return -TARGET_EFAULT;
2615
2616 return get_errno(semop(semid, sops, nsops));
2617 }
2618
2619 struct target_msqid_ds
2620 {
2621 struct target_ipc_perm msg_perm;
2622 abi_ulong msg_stime;
2623 #if TARGET_ABI_BITS == 32
2624 abi_ulong __unused1;
2625 #endif
2626 abi_ulong msg_rtime;
2627 #if TARGET_ABI_BITS == 32
2628 abi_ulong __unused2;
2629 #endif
2630 abi_ulong msg_ctime;
2631 #if TARGET_ABI_BITS == 32
2632 abi_ulong __unused3;
2633 #endif
2634 abi_ulong __msg_cbytes;
2635 abi_ulong msg_qnum;
2636 abi_ulong msg_qbytes;
2637 abi_ulong msg_lspid;
2638 abi_ulong msg_lrpid;
2639 abi_ulong __unused4;
2640 abi_ulong __unused5;
2641 };
2642
2643 static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md,
2644 abi_ulong target_addr)
2645 {
2646 struct target_msqid_ds *target_md;
2647
2648 if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1))
2649 return -TARGET_EFAULT;
2650 if (target_to_host_ipc_perm(&(host_md->msg_perm),target_addr))
2651 return -TARGET_EFAULT;
2652 host_md->msg_stime = tswapal(target_md->msg_stime);
2653 host_md->msg_rtime = tswapal(target_md->msg_rtime);
2654 host_md->msg_ctime = tswapal(target_md->msg_ctime);
2655 host_md->__msg_cbytes = tswapal(target_md->__msg_cbytes);
2656 host_md->msg_qnum = tswapal(target_md->msg_qnum);
2657 host_md->msg_qbytes = tswapal(target_md->msg_qbytes);
2658 host_md->msg_lspid = tswapal(target_md->msg_lspid);
2659 host_md->msg_lrpid = tswapal(target_md->msg_lrpid);
2660 unlock_user_struct(target_md, target_addr, 0);
2661 return 0;
2662 }
2663
2664 static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr,
2665 struct msqid_ds *host_md)
2666 {
2667 struct target_msqid_ds *target_md;
2668
2669 if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0))
2670 return -TARGET_EFAULT;
2671 if (host_to_target_ipc_perm(target_addr,&(host_md->msg_perm)))
2672 return -TARGET_EFAULT;
2673 target_md->msg_stime = tswapal(host_md->msg_stime);
2674 target_md->msg_rtime = tswapal(host_md->msg_rtime);
2675 target_md->msg_ctime = tswapal(host_md->msg_ctime);
2676 target_md->__msg_cbytes = tswapal(host_md->__msg_cbytes);
2677 target_md->msg_qnum = tswapal(host_md->msg_qnum);
2678 target_md->msg_qbytes = tswapal(host_md->msg_qbytes);
2679 target_md->msg_lspid = tswapal(host_md->msg_lspid);
2680 target_md->msg_lrpid = tswapal(host_md->msg_lrpid);
2681 unlock_user_struct(target_md, target_addr, 1);
2682 return 0;
2683 }
2684
2685 struct target_msginfo {
2686 int msgpool;
2687 int msgmap;
2688 int msgmax;
2689 int msgmnb;
2690 int msgmni;
2691 int msgssz;
2692 int msgtql;
2693 unsigned short int msgseg;
2694 };
2695
2696 static inline abi_long host_to_target_msginfo(abi_ulong target_addr,
2697 struct msginfo *host_msginfo)
2698 {
2699 struct target_msginfo *target_msginfo;
2700 if (!lock_user_struct(VERIFY_WRITE, target_msginfo, target_addr, 0))
2701 return -TARGET_EFAULT;
2702 __put_user(host_msginfo->msgpool, &target_msginfo->msgpool);
2703 __put_user(host_msginfo->msgmap, &target_msginfo->msgmap);
2704 __put_user(host_msginfo->msgmax, &target_msginfo->msgmax);
2705 __put_user(host_msginfo->msgmnb, &target_msginfo->msgmnb);
2706 __put_user(host_msginfo->msgmni, &target_msginfo->msgmni);
2707 __put_user(host_msginfo->msgssz, &target_msginfo->msgssz);
2708 __put_user(host_msginfo->msgtql, &target_msginfo->msgtql);
2709 __put_user(host_msginfo->msgseg, &target_msginfo->msgseg);
2710 unlock_user_struct(target_msginfo, target_addr, 1);
2711 return 0;
2712 }
2713
2714 static inline abi_long do_msgctl(int msgid, int cmd, abi_long ptr)
2715 {
2716 struct msqid_ds dsarg;
2717 struct msginfo msginfo;
2718 abi_long ret = -TARGET_EINVAL;
2719
2720 cmd &= 0xff;
2721
2722 switch (cmd) {
2723 case IPC_STAT:
2724 case IPC_SET:
2725 case MSG_STAT:
2726 if (target_to_host_msqid_ds(&dsarg,ptr))
2727 return -TARGET_EFAULT;
2728 ret = get_errno(msgctl(msgid, cmd, &dsarg));
2729 if (host_to_target_msqid_ds(ptr,&dsarg))
2730 return -TARGET_EFAULT;
2731 break;
2732 case IPC_RMID:
2733 ret = get_errno(msgctl(msgid, cmd, NULL));
2734 break;
2735 case IPC_INFO:
2736 case MSG_INFO:
2737 ret = get_errno(msgctl(msgid, cmd, (struct msqid_ds *)&msginfo));
2738 if (host_to_target_msginfo(ptr, &msginfo))
2739 return -TARGET_EFAULT;
2740 break;
2741 }
2742
2743 return ret;
2744 }
2745
2746 struct target_msgbuf {
2747 abi_long mtype;
2748 char mtext[1];
2749 };
2750
2751 static inline abi_long do_msgsnd(int msqid, abi_long msgp,
2752 unsigned int msgsz, int msgflg)
2753 {
2754 struct target_msgbuf *target_mb;
2755 struct msgbuf *host_mb;
2756 abi_long ret = 0;
2757
2758 if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0))
2759 return -TARGET_EFAULT;
2760 host_mb = malloc(msgsz+sizeof(long));
2761 host_mb->mtype = (abi_long) tswapal(target_mb->mtype);
2762 memcpy(host_mb->mtext, target_mb->mtext, msgsz);
2763 ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg));
2764 free(host_mb);
2765 unlock_user_struct(target_mb, msgp, 0);
2766
2767 return ret;
2768 }
2769
2770 static inline abi_long do_msgrcv(int msqid, abi_long msgp,
2771 unsigned int msgsz, abi_long msgtyp,
2772 int msgflg)
2773 {
2774 struct target_msgbuf *target_mb;
2775 char *target_mtext;
2776 struct msgbuf *host_mb;
2777 abi_long ret = 0;
2778
2779 if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0))
2780 return -TARGET_EFAULT;
2781
2782 host_mb = g_malloc(msgsz+sizeof(long));
2783 ret = get_errno(msgrcv(msqid, host_mb, msgsz, msgtyp, msgflg));
2784
2785 if (ret > 0) {
2786 abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong);
2787 target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0);
2788 if (!target_mtext) {
2789 ret = -TARGET_EFAULT;
2790 goto end;
2791 }
2792 memcpy(target_mb->mtext, host_mb->mtext, ret);
2793 unlock_user(target_mtext, target_mtext_addr, ret);
2794 }
2795
2796 target_mb->mtype = tswapal(host_mb->mtype);
2797
2798 end:
2799 if (target_mb)
2800 unlock_user_struct(target_mb, msgp, 1);
2801 g_free(host_mb);
2802 return ret;
2803 }
2804
2805 struct target_shmid_ds
2806 {
2807 struct target_ipc_perm shm_perm;
2808 abi_ulong shm_segsz;
2809 abi_ulong shm_atime;
2810 #if TARGET_ABI_BITS == 32
2811 abi_ulong __unused1;
2812 #endif
2813 abi_ulong shm_dtime;
2814 #if TARGET_ABI_BITS == 32
2815 abi_ulong __unused2;
2816 #endif
2817 abi_ulong shm_ctime;
2818 #if TARGET_ABI_BITS == 32
2819 abi_ulong __unused3;
2820 #endif
2821 int shm_cpid;
2822 int shm_lpid;
2823 abi_ulong shm_nattch;
2824 unsigned long int __unused4;
2825 unsigned long int __unused5;
2826 };
2827
2828 static inline abi_long target_to_host_shmid_ds(struct shmid_ds *host_sd,
2829 abi_ulong target_addr)
2830 {
2831 struct target_shmid_ds *target_sd;
2832
2833 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
2834 return -TARGET_EFAULT;
2835 if (target_to_host_ipc_perm(&(host_sd->shm_perm), target_addr))
2836 return -TARGET_EFAULT;
2837 __get_user(host_sd->shm_segsz, &target_sd->shm_segsz);
2838 __get_user(host_sd->shm_atime, &target_sd->shm_atime);
2839 __get_user(host_sd->shm_dtime, &target_sd->shm_dtime);
2840 __get_user(host_sd->shm_ctime, &target_sd->shm_ctime);
2841 __get_user(host_sd->shm_cpid, &target_sd->shm_cpid);
2842 __get_user(host_sd->shm_lpid, &target_sd->shm_lpid);
2843 __get_user(host_sd->shm_nattch, &target_sd->shm_nattch);
2844 unlock_user_struct(target_sd, target_addr, 0);
2845 return 0;
2846 }
2847
2848 static inline abi_long host_to_target_shmid_ds(abi_ulong target_addr,
2849 struct shmid_ds *host_sd)
2850 {
2851 struct target_shmid_ds *target_sd;
2852
2853 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
2854 return -TARGET_EFAULT;
2855 if (host_to_target_ipc_perm(target_addr, &(host_sd->shm_perm)))
2856 return -TARGET_EFAULT;
2857 __put_user(host_sd->shm_segsz, &target_sd->shm_segsz);
2858 __put_user(host_sd->shm_atime, &target_sd->shm_atime);
2859 __put_user(host_sd->shm_dtime, &target_sd->shm_dtime);
2860 __put_user(host_sd->shm_ctime, &target_sd->shm_ctime);
2861 __put_user(host_sd->shm_cpid, &target_sd->shm_cpid);
2862 __put_user(host_sd->shm_lpid, &target_sd->shm_lpid);
2863 __put_user(host_sd->shm_nattch, &target_sd->shm_nattch);
2864 unlock_user_struct(target_sd, target_addr, 1);
2865 return 0;
2866 }
2867
2868 struct target_shminfo {
2869 abi_ulong shmmax;
2870 abi_ulong shmmin;
2871 abi_ulong shmmni;
2872 abi_ulong shmseg;
2873 abi_ulong shmall;
2874 };
2875
2876 static inline abi_long host_to_target_shminfo(abi_ulong target_addr,
2877 struct shminfo *host_shminfo)
2878 {
2879 struct target_shminfo *target_shminfo;
2880 if (!lock_user_struct(VERIFY_WRITE, target_shminfo, target_addr, 0))
2881 return -TARGET_EFAULT;
2882 __put_user(host_shminfo->shmmax, &target_shminfo->shmmax);
2883 __put_user(host_shminfo->shmmin, &target_shminfo->shmmin);
2884 __put_user(host_shminfo->shmmni, &target_shminfo->shmmni);
2885 __put_user(host_shminfo->shmseg, &target_shminfo->shmseg);
2886 __put_user(host_shminfo->shmall, &target_shminfo->shmall);
2887 unlock_user_struct(target_shminfo, target_addr, 1);
2888 return 0;
2889 }
2890
2891 struct target_shm_info {
2892 int used_ids;
2893 abi_ulong shm_tot;
2894 abi_ulong shm_rss;
2895 abi_ulong shm_swp;
2896 abi_ulong swap_attempts;
2897 abi_ulong swap_successes;
2898 };
2899
2900 static inline abi_long host_to_target_shm_info(abi_ulong target_addr,
2901 struct shm_info *host_shm_info)
2902 {
2903 struct target_shm_info *target_shm_info;
2904 if (!lock_user_struct(VERIFY_WRITE, target_shm_info, target_addr, 0))
2905 return -TARGET_EFAULT;
2906 __put_user(host_shm_info->used_ids, &target_shm_info->used_ids);
2907 __put_user(host_shm_info->shm_tot, &target_shm_info->shm_tot);
2908 __put_user(host_shm_info->shm_rss, &target_shm_info->shm_rss);
2909 __put_user(host_shm_info->shm_swp, &target_shm_info->shm_swp);
2910 __put_user(host_shm_info->swap_attempts, &target_shm_info->swap_attempts);
2911 __put_user(host_shm_info->swap_successes, &target_shm_info->swap_successes);
2912 unlock_user_struct(target_shm_info, target_addr, 1);
2913 return 0;
2914 }
2915
2916 static inline abi_long do_shmctl(int shmid, int cmd, abi_long buf)
2917 {
2918 struct shmid_ds dsarg;
2919 struct shminfo shminfo;
2920 struct shm_info shm_info;
2921 abi_long ret = -TARGET_EINVAL;
2922
2923 cmd &= 0xff;
2924
2925 switch(cmd) {
2926 case IPC_STAT:
2927 case IPC_SET:
2928 case SHM_STAT:
2929 if (target_to_host_shmid_ds(&dsarg, buf))
2930 return -TARGET_EFAULT;
2931 ret = get_errno(shmctl(shmid, cmd, &dsarg));
2932 if (host_to_target_shmid_ds(buf, &dsarg))
2933 return -TARGET_EFAULT;
2934 break;
2935 case IPC_INFO:
2936 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shminfo));
2937 if (host_to_target_shminfo(buf, &shminfo))
2938 return -TARGET_EFAULT;
2939 break;
2940 case SHM_INFO:
2941 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shm_info));
2942 if (host_to_target_shm_info(buf, &shm_info))
2943 return -TARGET_EFAULT;
2944 break;
2945 case IPC_RMID:
2946 case SHM_LOCK:
2947 case SHM_UNLOCK:
2948 ret = get_errno(shmctl(shmid, cmd, NULL));
2949 break;
2950 }
2951
2952 return ret;
2953 }
2954
2955 static inline abi_ulong do_shmat(int shmid, abi_ulong shmaddr, int shmflg)
2956 {
2957 abi_long raddr;
2958 void *host_raddr;
2959 struct shmid_ds shm_info;
2960 int i,ret;
2961
2962 /* find out the length of the shared memory segment */
2963 ret = get_errno(shmctl(shmid, IPC_STAT, &shm_info));
2964 if (is_error(ret)) {
2965 /* can't get length, bail out */
2966 return ret;
2967 }
2968
2969 mmap_lock();
2970
2971 if (shmaddr)
2972 host_raddr = shmat(shmid, (void *)g2h(shmaddr), shmflg);
2973 else {
2974 abi_ulong mmap_start;
2975
2976 mmap_start = mmap_find_vma(0, shm_info.shm_segsz);
2977
2978 if (mmap_start == -1) {
2979 errno = ENOMEM;
2980 host_raddr = (void *)-1;
2981 } else
2982 host_raddr = shmat(shmid, g2h(mmap_start), shmflg | SHM_REMAP);
2983 }
2984
2985 if (host_raddr == (void *)-1) {
2986 mmap_unlock();
2987 return get_errno((long)host_raddr);
2988 }
2989 raddr=h2g((unsigned long)host_raddr);
2990
2991 page_set_flags(raddr, raddr + shm_info.shm_segsz,
2992 PAGE_VALID | PAGE_READ |
2993 ((shmflg & SHM_RDONLY)? 0 : PAGE_WRITE));
2994
2995 for (i = 0; i < N_SHM_REGIONS; i++) {
2996 if (shm_regions[i].start == 0) {
2997 shm_regions[i].start = raddr;
2998 shm_regions[i].size = shm_info.shm_segsz;
2999 break;
3000 }
3001 }
3002
3003 mmap_unlock();
3004 return raddr;
3005
3006 }
3007
3008 static inline abi_long do_shmdt(abi_ulong shmaddr)
3009 {
3010 int i;
3011
3012 for (i = 0; i < N_SHM_REGIONS; ++i) {
3013 if (shm_regions[i].start == shmaddr) {
3014 shm_regions[i].start = 0;
3015 page_set_flags(shmaddr, shmaddr + shm_regions[i].size, 0);
3016 break;
3017 }
3018 }
3019
3020 return get_errno(shmdt(g2h(shmaddr)));
3021 }
3022
3023 #ifdef TARGET_NR_ipc
3024 /* ??? This only works with linear mappings. */
3025 /* do_ipc() must return target values and target errnos. */
3026 static abi_long do_ipc(unsigned int call, int first,
3027 int second, int third,
3028 abi_long ptr, abi_long fifth)
3029 {
3030 int version;
3031 abi_long ret = 0;
3032
3033 version = call >> 16;
3034 call &= 0xffff;
3035
3036 switch (call) {
3037 case IPCOP_semop:
3038 ret = do_semop(first, ptr, second);
3039 break;
3040
3041 case IPCOP_semget:
3042 ret = get_errno(semget(first, second, third));
3043 break;
3044
3045 case IPCOP_semctl:
3046 ret = do_semctl(first, second, third, (union target_semun)(abi_ulong) ptr);
3047 break;
3048
3049 case IPCOP_msgget:
3050 ret = get_errno(msgget(first, second));
3051 break;
3052
3053 case IPCOP_msgsnd:
3054 ret = do_msgsnd(first, ptr, second, third);
3055 break;
3056
3057 case IPCOP_msgctl:
3058 ret = do_msgctl(first, second, ptr);
3059 break;
3060
3061 case IPCOP_msgrcv:
3062 switch (version) {
3063 case 0:
3064 {
3065 struct target_ipc_kludge {
3066 abi_long msgp;
3067 abi_long msgtyp;
3068 } *tmp;
3069
3070 if (!lock_user_struct(VERIFY_READ, tmp, ptr, 1)) {
3071 ret = -TARGET_EFAULT;
3072 break;
3073 }
3074
3075 ret = do_msgrcv(first, tswapal(tmp->msgp), second, tswapal(tmp->msgtyp), third);
3076
3077 unlock_user_struct(tmp, ptr, 0);
3078 break;
3079 }
3080 default:
3081 ret = do_msgrcv(first, ptr, second, fifth, third);
3082 }
3083 break;
3084
3085 case IPCOP_shmat:
3086 switch (version) {
3087 default:
3088 {
3089 abi_ulong raddr;
3090 raddr = do_shmat(first, ptr, second);
3091 if (is_error(raddr))
3092 return get_errno(raddr);
3093 if (put_user_ual(raddr, third))
3094 return -TARGET_EFAULT;
3095 break;
3096 }
3097 case 1:
3098 ret = -TARGET_EINVAL;
3099 break;
3100 }
3101 break;
3102 case IPCOP_shmdt:
3103 ret = do_shmdt(ptr);
3104 break;
3105
3106 case IPCOP_shmget:
3107 /* IPC_* flag values are the same on all linux platforms */
3108 ret = get_errno(shmget(first, second, third));
3109 break;
3110
3111 /* IPC_* and SHM_* command values are the same on all linux platforms */
3112 case IPCOP_shmctl:
3113 ret = do_shmctl(first, second, third);
3114 break;
3115 default:
3116 gemu_log("Unsupported ipc call: %d (version %d)\n", call, version);
3117 ret = -TARGET_ENOSYS;
3118 break;
3119 }
3120 return ret;
3121 }
3122 #endif
3123
3124 /* kernel structure types definitions */
3125
3126 #define STRUCT(name, ...) STRUCT_ ## name,
3127 #define STRUCT_SPECIAL(name) STRUCT_ ## name,
3128 enum {
3129 #include "syscall_types.h"
3130 };
3131 #undef STRUCT
3132 #undef STRUCT_SPECIAL
3133
3134 #define STRUCT(name, ...) static const argtype struct_ ## name ## _def[] = { __VA_ARGS__, TYPE_NULL };
3135 #define STRUCT_SPECIAL(name)
3136 #include "syscall_types.h"
3137 #undef STRUCT
3138 #undef STRUCT_SPECIAL
3139
3140 typedef struct IOCTLEntry IOCTLEntry;
3141
3142 typedef abi_long do_ioctl_fn(const IOCTLEntry *ie, uint8_t *buf_temp,
3143 int fd, abi_long cmd, abi_long arg);
3144
3145 struct IOCTLEntry {
3146 unsigned int target_cmd;
3147 unsigned int host_cmd;
3148 const char *name;
3149 int access;
3150 do_ioctl_fn *do_ioctl;
3151 const argtype arg_type[5];
3152 };
3153
3154 #define IOC_R 0x0001
3155 #define IOC_W 0x0002
3156 #define IOC_RW (IOC_R | IOC_W)
3157
3158 #define MAX_STRUCT_SIZE 4096
3159
3160 #ifdef CONFIG_FIEMAP
3161 /* So fiemap access checks don't overflow on 32 bit systems.
3162 * This is very slightly smaller than the limit imposed by
3163 * the underlying kernel.
3164 */
3165 #define FIEMAP_MAX_EXTENTS ((UINT_MAX - sizeof(struct fiemap)) \
3166 / sizeof(struct fiemap_extent))
3167
3168 static abi_long do_ioctl_fs_ioc_fiemap(const IOCTLEntry *ie, uint8_t *buf_temp,
3169 int fd, abi_long cmd, abi_long arg)
3170 {
3171 /* The parameter for this ioctl is a struct fiemap followed
3172 * by an array of struct fiemap_extent whose size is set
3173 * in fiemap->fm_extent_count. The array is filled in by the
3174 * ioctl.
3175 */
3176 int target_size_in, target_size_out;
3177 struct fiemap *fm;
3178 const argtype *arg_type = ie->arg_type;
3179 const argtype extent_arg_type[] = { MK_STRUCT(STRUCT_fiemap_extent) };
3180 void *argptr, *p;
3181 abi_long ret;
3182 int i, extent_size = thunk_type_size(extent_arg_type, 0);
3183 uint32_t outbufsz;
3184 int free_fm = 0;
3185
3186 assert(arg_type[0] == TYPE_PTR);
3187 assert(ie->access == IOC_RW);
3188 arg_type++;
3189 target_size_in = thunk_type_size(arg_type, 0);
3190 argptr = lock_user(VERIFY_READ, arg, target_size_in, 1);
3191 if (!argptr) {
3192 return -TARGET_EFAULT;
3193 }
3194 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
3195 unlock_user(argptr, arg, 0);
3196 fm = (struct fiemap *)buf_temp;
3197 if (fm->fm_extent_count > FIEMAP_MAX_EXTENTS) {
3198 return -TARGET_EINVAL;
3199 }
3200
3201 outbufsz = sizeof (*fm) +
3202 (sizeof(struct fiemap_extent) * fm->fm_extent_count);
3203
3204 if (outbufsz > MAX_STRUCT_SIZE) {
3205 /* We can't fit all the extents into the fixed size buffer.
3206 * Allocate one that is large enough and use it instead.
3207 */
3208 fm = malloc(outbufsz);
3209 if (!fm) {
3210 return -TARGET_ENOMEM;
3211 }
3212 memcpy(fm, buf_temp, sizeof(struct fiemap));
3213 free_fm = 1;
3214 }
3215 ret = get_errno(ioctl(fd, ie->host_cmd, fm));
3216 if (!is_error(ret)) {
3217 target_size_out = target_size_in;
3218 /* An extent_count of 0 means we were only counting the extents
3219 * so there are no structs to copy
3220 */
3221 if (fm->fm_extent_count != 0) {
3222 target_size_out += fm->fm_mapped_extents * extent_size;
3223 }
3224 argptr = lock_user(VERIFY_WRITE, arg, target_size_out, 0);
3225 if (!argptr) {
3226 ret = -TARGET_EFAULT;
3227 } else {
3228 /* Convert the struct fiemap */
3229 thunk_convert(argptr, fm, arg_type, THUNK_TARGET);
3230 if (fm->fm_extent_count != 0) {
3231 p = argptr + target_size_in;
3232 /* ...and then all the struct fiemap_extents */
3233 for (i = 0; i < fm->fm_mapped_extents; i++) {
3234 thunk_convert(p, &fm->fm_extents[i], extent_arg_type,
3235 THUNK_TARGET);
3236 p += extent_size;
3237 }
3238 }
3239 unlock_user(argptr, arg, target_size_out);
3240 }
3241 }
3242 if (free_fm) {
3243 free(fm);
3244 }
3245 return ret;
3246 }
3247 #endif
3248
3249 static abi_long do_ioctl_ifconf(const IOCTLEntry *ie, uint8_t *buf_temp,
3250 int fd, abi_long cmd, abi_long arg)
3251 {
3252 const argtype *arg_type = ie->arg_type;
3253 int target_size;
3254 void *argptr;
3255 int ret;
3256 struct ifconf *host_ifconf;
3257 uint32_t outbufsz;
3258 const argtype ifreq_arg_type[] = { MK_STRUCT(STRUCT_sockaddr_ifreq) };
3259 int target_ifreq_size;
3260 int nb_ifreq;
3261 int free_buf = 0;
3262 int i;
3263 int target_ifc_len;
3264 abi_long target_ifc_buf;
3265 int host_ifc_len;
3266 char *host_ifc_buf;
3267
3268 assert(arg_type[0] == TYPE_PTR);
3269 assert(ie->access == IOC_RW);
3270
3271 arg_type++;
3272 target_size = thunk_type_size(arg_type, 0);
3273
3274 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
3275 if (!argptr)
3276 return -TARGET_EFAULT;
3277 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
3278 unlock_user(argptr, arg, 0);
3279
3280 host_ifconf = (struct ifconf *)(unsigned long)buf_temp;
3281 target_ifc_len = host_ifconf->ifc_len;
3282 target_ifc_buf = (abi_long)(unsigned long)host_ifconf->ifc_buf;
3283
3284 target_ifreq_size = thunk_type_size(ifreq_arg_type, 0);
3285 nb_ifreq = target_ifc_len / target_ifreq_size;
3286 host_ifc_len = nb_ifreq * sizeof(struct ifreq);
3287
3288 outbufsz = sizeof(*host_ifconf) + host_ifc_len;
3289 if (outbufsz > MAX_STRUCT_SIZE) {
3290 /* We can't fit all the extents into the fixed size buffer.
3291 * Allocate one that is large enough and use it instead.
3292 */
3293 host_ifconf = malloc(outbufsz);
3294 if (!host_ifconf) {
3295 return -TARGET_ENOMEM;
3296 }
3297 memcpy(host_ifconf, buf_temp, sizeof(*host_ifconf));
3298 free_buf = 1;
3299 }
3300 host_ifc_buf = (char*)host_ifconf + sizeof(*host_ifconf);
3301
3302 host_ifconf->ifc_len = host_ifc_len;
3303 host_ifconf->ifc_buf = host_ifc_buf;
3304
3305 ret = get_errno(ioctl(fd, ie->host_cmd, host_ifconf));
3306 if (!is_error(ret)) {
3307 /* convert host ifc_len to target ifc_len */
3308
3309 nb_ifreq = host_ifconf->ifc_len / sizeof(struct ifreq);
3310 target_ifc_len = nb_ifreq * target_ifreq_size;
3311 host_ifconf->ifc_len = target_ifc_len;
3312
3313 /* restore target ifc_buf */
3314
3315 host_ifconf->ifc_buf = (char *)(unsigned long)target_ifc_buf;
3316
3317 /* copy struct ifconf to target user */
3318
3319 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
3320 if (!argptr)
3321 return -TARGET_EFAULT;
3322 thunk_convert(argptr, host_ifconf, arg_type, THUNK_TARGET);
3323 unlock_user(argptr, arg, target_size);
3324
3325 /* copy ifreq[] to target user */
3326
3327 argptr = lock_user(VERIFY_WRITE, target_ifc_buf, target_ifc_len, 0);
3328 for (i = 0; i < nb_ifreq ; i++) {
3329 thunk_convert(argptr + i * target_ifreq_size,
3330 host_ifc_buf + i * sizeof(struct ifreq),
3331 ifreq_arg_type, THUNK_TARGET);
3332 }
3333 unlock_user(argptr, target_ifc_buf, target_ifc_len);
3334 }
3335
3336 if (free_buf) {
3337 free(host_ifconf);
3338 }
3339
3340 return ret;
3341 }
3342
3343 static abi_long do_ioctl_dm(const IOCTLEntry *ie, uint8_t *buf_temp, int fd,
3344 abi_long cmd, abi_long arg)
3345 {
3346 void *argptr;
3347 struct dm_ioctl *host_dm;
3348 abi_long guest_data;
3349 uint32_t guest_data_size;
3350 int target_size;
3351 const argtype *arg_type = ie->arg_type;
3352 abi_long ret;
3353 void *big_buf = NULL;
3354 char *host_data;
3355
3356 arg_type++;
3357 target_size = thunk_type_size(arg_type, 0);
3358 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
3359 if (!argptr) {
3360 ret = -TARGET_EFAULT;
3361 goto out;
3362 }
3363 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
3364 unlock_user(argptr, arg, 0);
3365
3366 /* buf_temp is too small, so fetch things into a bigger buffer */
3367 big_buf = g_malloc0(((struct dm_ioctl*)buf_temp)->data_size * 2);
3368 memcpy(big_buf, buf_temp, target_size);
3369 buf_temp = big_buf;
3370 host_dm = big_buf;
3371
3372 guest_data = arg + host_dm->data_start;
3373 if ((guest_data - arg) < 0) {
3374 ret = -EINVAL;
3375 goto out;
3376 }
3377 guest_data_size = host_dm->data_size - host_dm->data_start;
3378 host_data = (char*)host_dm + host_dm->data_start;
3379
3380 argptr = lock_user(VERIFY_READ, guest_data, guest_data_size, 1);
3381 switch (ie->host_cmd) {
3382 case DM_REMOVE_ALL:
3383 case DM_LIST_DEVICES:
3384 case DM_DEV_CREATE:
3385 case DM_DEV_REMOVE:
3386 case DM_DEV_SUSPEND:
3387 case DM_DEV_STATUS:
3388 case DM_DEV_WAIT:
3389 case DM_TABLE_STATUS:
3390 case DM_TABLE_CLEAR:
3391 case DM_TABLE_DEPS:
3392 case DM_LIST_VERSIONS:
3393 /* no input data */
3394 break;
3395 case DM_DEV_RENAME:
3396 case DM_DEV_SET_GEOMETRY:
3397 /* data contains only strings */
3398 memcpy(host_data, argptr, guest_data_size);
3399 break;
3400 case DM_TARGET_MSG:
3401 memcpy(host_data, argptr, guest_data_size);
3402 *(uint64_t*)host_data = tswap64(*(uint64_t*)argptr);
3403 break;
3404 case DM_TABLE_LOAD:
3405 {
3406 void *gspec = argptr;
3407 void *cur_data = host_data;
3408 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) };
3409 int spec_size = thunk_type_size(arg_type, 0);
3410 int i;
3411
3412 for (i = 0; i < host_dm->target_count; i++) {
3413 struct dm_target_spec *spec = cur_data;
3414 uint32_t next;
3415 int slen;
3416
3417 thunk_convert(spec, gspec, arg_type, THUNK_HOST);
3418 slen = strlen((char*)gspec + spec_size) + 1;
3419 next = spec->next;
3420 spec->next = sizeof(*spec) + slen;
3421 strcpy((char*)&spec[1], gspec + spec_size);
3422 gspec += next;
3423 cur_data += spec->next;
3424 }
3425 break;
3426 }
3427 default:
3428 ret = -TARGET_EINVAL;
3429 goto out;
3430 }
3431 unlock_user(argptr, guest_data, 0);
3432
3433 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
3434 if (!is_error(ret)) {
3435 guest_data = arg + host_dm->data_start;
3436 guest_data_size = host_dm->data_size - host_dm->data_start;
3437 argptr = lock_user(VERIFY_WRITE, guest_data, guest_data_size, 0);
3438 switch (ie->host_cmd) {
3439 case DM_REMOVE_ALL:
3440 case DM_DEV_CREATE:
3441 case DM_DEV_REMOVE:
3442 case DM_DEV_RENAME:
3443 case DM_DEV_SUSPEND:
3444 case DM_DEV_STATUS:
3445 case DM_TABLE_LOAD:
3446 case DM_TABLE_CLEAR:
3447 case DM_TARGET_MSG:
3448 case DM_DEV_SET_GEOMETRY:
3449 /* no return data */
3450 break;
3451 case DM_LIST_DEVICES:
3452 {
3453 struct dm_name_list *nl = (void*)host_dm + host_dm->data_start;
3454 uint32_t remaining_data = guest_data_size;
3455 void *cur_data = argptr;
3456 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_name_list) };
3457 int nl_size = 12; /* can't use thunk_size due to alignment */
3458
3459 while (1) {
3460 uint32_t next = nl->next;
3461 if (next) {
3462 nl->next = nl_size + (strlen(nl->name) + 1);
3463 }
3464 if (remaining_data < nl->next) {
3465 host_dm->flags |= DM_BUFFER_FULL_FLAG;
3466 break;
3467 }
3468 thunk_convert(cur_data, nl, arg_type, THUNK_TARGET);
3469 strcpy(cur_data + nl_size, nl->name);
3470 cur_data += nl->next;
3471 remaining_data -= nl->next;
3472 if (!next) {
3473 break;
3474 }
3475 nl = (void*)nl + next;
3476 }
3477 break;
3478 }
3479 case DM_DEV_WAIT:
3480 case DM_TABLE_STATUS:
3481 {
3482 struct dm_target_spec *spec = (void*)host_dm + host_dm->data_start;
3483 void *cur_data = argptr;
3484 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) };
3485 int spec_size = thunk_type_size(arg_type, 0);
3486 int i;
3487
3488 for (i = 0; i < host_dm->target_count; i++) {
3489 uint32_t next = spec->next;
3490 int slen = strlen((char*)&spec[1]) + 1;
3491 spec->next = (cur_data - argptr) + spec_size + slen;
3492 if (guest_data_size < spec->next) {
3493 host_dm->flags |= DM_BUFFER_FULL_FLAG;
3494 break;
3495 }
3496 thunk_convert(cur_data, spec, arg_type, THUNK_TARGET);
3497 strcpy(cur_data + spec_size, (char*)&spec[1]);
3498 cur_data = argptr + spec->next;
3499 spec = (void*)host_dm + host_dm->data_start + next;
3500 }
3501 break;
3502 }
3503 case DM_TABLE_DEPS:
3504 {
3505 void *hdata = (void*)host_dm + host_dm->data_start;
3506 int count = *(uint32_t*)hdata;
3507 uint64_t *hdev = hdata + 8;
3508 uint64_t *gdev = argptr + 8;
3509 int i;
3510
3511 *(uint32_t*)argptr = tswap32(count);
3512 for (i = 0; i < count; i++) {
3513 *gdev = tswap64(*hdev);
3514 gdev++;
3515 hdev++;
3516 }
3517 break;
3518 }
3519 case DM_LIST_VERSIONS:
3520 {
3521 struct dm_target_versions *vers = (void*)host_dm + host_dm->data_start;
3522 uint32_t remaining_data = guest_data_size;
3523 void *cur_data = argptr;
3524 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_versions) };
3525 int vers_size = thunk_type_size(arg_type, 0);
3526
3527 while (1) {
3528 uint32_t next = vers->next;
3529 if (next) {
3530 vers->next = vers_size + (strlen(vers->name) + 1);
3531 }
3532 if (remaining_data < vers->next) {
3533 host_dm->flags |= DM_BUFFER_FULL_FLAG;
3534 break;
3535 }
3536 thunk_convert(cur_data, vers, arg_type, THUNK_TARGET);
3537 strcpy(cur_data + vers_size, vers->name);
3538 cur_data += vers->next;
3539 remaining_data -= vers->next;
3540 if (!next) {
3541 break;
3542 }
3543 vers = (void*)vers + next;
3544 }
3545 break;
3546 }
3547 default:
3548 ret = -TARGET_EINVAL;
3549 goto out;
3550 }
3551 unlock_user(argptr, guest_data, guest_data_size);
3552
3553 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
3554 if (!argptr) {
3555 ret = -TARGET_EFAULT;
3556 goto out;
3557 }
3558 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
3559 unlock_user(argptr, arg, target_size);
3560 }
3561 out:
3562 g_free(big_buf);
3563 return ret;
3564 }
3565
3566 static abi_long do_ioctl_rt(const IOCTLEntry *ie, uint8_t *buf_temp,
3567 int fd, abi_long cmd, abi_long arg)
3568 {
3569 const argtype *arg_type = ie->arg_type;
3570 const StructEntry *se;
3571 const argtype *field_types;
3572 const int *dst_offsets, *src_offsets;
3573 int target_size;
3574 void *argptr;
3575 abi_ulong *target_rt_dev_ptr;
3576 unsigned long *host_rt_dev_ptr;
3577 abi_long ret;
3578 int i;
3579
3580 assert(ie->access == IOC_W);
3581 assert(*arg_type == TYPE_PTR);
3582 arg_type++;
3583 assert(*arg_type == TYPE_STRUCT);
3584 target_size = thunk_type_size(arg_type, 0);
3585 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
3586 if (!argptr) {
3587 return -TARGET_EFAULT;
3588 }
3589 arg_type++;
3590 assert(*arg_type == (int)STRUCT_rtentry);
3591 se = struct_entries + *arg_type++;
3592 assert(se->convert[0] == NULL);
3593 /* convert struct here to be able to catch rt_dev string */
3594 field_types = se->field_types;
3595 dst_offsets = se->field_offsets[THUNK_HOST];
3596 src_offsets = se->field_offsets[THUNK_TARGET];
3597 for (i = 0; i < se->nb_fields; i++) {
3598 if (dst_offsets[i] == offsetof(struct rtentry, rt_dev)) {
3599 assert(*field_types == TYPE_PTRVOID);
3600 target_rt_dev_ptr = (abi_ulong *)(argptr + src_offsets[i]);
3601 host_rt_dev_ptr = (unsigned long *)(buf_temp + dst_offsets[i]);
3602 if (*target_rt_dev_ptr != 0) {
3603 *host_rt_dev_ptr = (unsigned long)lock_user_string(
3604 tswapal(*target_rt_dev_ptr));
3605 if (!*host_rt_dev_ptr) {
3606 unlock_user(argptr, arg, 0);
3607 return -TARGET_EFAULT;
3608 }
3609 } else {
3610 *host_rt_dev_ptr = 0;
3611 }
3612 field_types++;
3613 continue;
3614 }
3615 field_types = thunk_convert(buf_temp + dst_offsets[i],
3616 argptr + src_offsets[i],
3617 field_types, THUNK_HOST);
3618 }
3619 unlock_user(argptr, arg, 0);
3620
3621 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
3622 if (*host_rt_dev_ptr != 0) {
3623 unlock_user((void *)*host_rt_dev_ptr,
3624 *target_rt_dev_ptr, 0);
3625 }
3626 return ret;
3627 }
3628
3629 static IOCTLEntry ioctl_entries[] = {
3630 #define IOCTL(cmd, access, ...) \
3631 { TARGET_ ## cmd, cmd, #cmd, access, 0, { __VA_ARGS__ } },
3632 #define IOCTL_SPECIAL(cmd, access, dofn, ...) \
3633 { TARGET_ ## cmd, cmd, #cmd, access, dofn, { __VA_ARGS__ } },
3634 #include "ioctls.h"
3635 { 0, 0, },
3636 };
3637
3638 /* ??? Implement proper locking for ioctls. */
3639 /* do_ioctl() Must return target values and target errnos. */
3640 static abi_long do_ioctl(int fd, abi_long cmd, abi_long arg)
3641 {
3642 const IOCTLEntry *ie;
3643 const argtype *arg_type;
3644 abi_long ret;
3645 uint8_t buf_temp[MAX_STRUCT_SIZE];
3646 int target_size;
3647 void *argptr;
3648
3649 ie = ioctl_entries;
3650 for(;;) {
3651 if (ie->target_cmd == 0) {
3652 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd);
3653 return -TARGET_ENOSYS;
3654 }
3655 if (ie->target_cmd == cmd)
3656 break;
3657 ie++;
3658 }
3659 arg_type = ie->arg_type;
3660 #if defined(DEBUG)
3661 gemu_log("ioctl: cmd=0x%04lx (%s)\n", (long)cmd, ie->name);
3662 #endif
3663 if (ie->do_ioctl) {
3664 return ie->do_ioctl(ie, buf_temp, fd, cmd, arg);
3665 }
3666
3667 switch(arg_type[0]) {
3668 case TYPE_NULL:
3669 /* no argument */
3670 ret = get_errno(ioctl(fd, ie->host_cmd));
3671 break;
3672 case TYPE_PTRVOID:
3673 case TYPE_INT:
3674 /* int argment */
3675 ret = get_errno(ioctl(fd, ie->host_cmd, arg));
3676 break;
3677 case TYPE_PTR:
3678 arg_type++;
3679 target_size = thunk_type_size(arg_type, 0);
3680 switch(ie->access) {
3681 case IOC_R:
3682 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
3683 if (!is_error(ret)) {
3684 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
3685 if (!argptr)
3686 return -TARGET_EFAULT;
3687 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
3688 unlock_user(argptr, arg, target_size);
3689 }
3690 break;
3691 case IOC_W:
3692 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
3693 if (!argptr)
3694 return -TARGET_EFAULT;
3695 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
3696 unlock_user(argptr, arg, 0);
3697 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
3698 break;
3699 default:
3700 case IOC_RW:
3701 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
3702 if (!argptr)
3703 return -TARGET_EFAULT;
3704 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
3705 unlock_user(argptr, arg, 0);
3706 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
3707 if (!is_error(ret)) {
3708 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
3709 if (!argptr)
3710 return -TARGET_EFAULT;
3711 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
3712 unlock_user(argptr, arg, target_size);
3713 }
3714 break;
3715 }
3716 break;
3717 default:
3718 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n",
3719 (long)cmd, arg_type[0]);
3720 ret = -TARGET_ENOSYS;
3721 break;
3722 }
3723 return ret;
3724 }
3725
3726 static const bitmask_transtbl iflag_tbl[] = {
3727 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
3728 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
3729 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
3730 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
3731 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
3732 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
3733 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
3734 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
3735 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
3736 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
3737 { TARGET_IXON, TARGET_IXON, IXON, IXON },
3738 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
3739 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
3740 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
3741 { 0, 0, 0, 0 }
3742 };
3743
3744 static const bitmask_transtbl oflag_tbl[] = {
3745 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
3746 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
3747 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
3748 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
3749 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
3750 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
3751 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
3752 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
3753 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
3754 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
3755 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
3756 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
3757 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
3758 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
3759 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
3760 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
3761 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
3762 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
3763 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
3764 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
3765 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
3766 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
3767 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
3768 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
3769 { 0, 0, 0, 0 }
3770 };
3771
3772 static const bitmask_transtbl cflag_tbl[] = {
3773 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
3774 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
3775 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
3776 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
3777 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
3778 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
3779 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
3780 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
3781 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
3782 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
3783 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
3784 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
3785 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
3786 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
3787 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
3788 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
3789 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
3790 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
3791 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
3792 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
3793 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
3794 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
3795 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
3796 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
3797 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
3798 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
3799 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
3800 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
3801 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
3802 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
3803 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
3804 { 0, 0, 0, 0 }
3805 };
3806
3807 static const bitmask_transtbl lflag_tbl[] = {
3808 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
3809 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
3810 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
3811 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
3812 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
3813 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
3814 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
3815 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
3816 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
3817 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
3818 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
3819 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
3820 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
3821 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
3822 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
3823 { 0, 0, 0, 0 }
3824 };
3825
3826 static void target_to_host_termios (void *dst, const void *src)
3827 {
3828 struct host_termios *host = dst;
3829 const struct target_termios *target = src;
3830
3831 host->c_iflag =
3832 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
3833 host->c_oflag =
3834 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
3835 host->c_cflag =
3836 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
3837 host->c_lflag =
3838 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
3839 host->c_line = target->c_line;
3840
3841 memset(host->c_cc, 0, sizeof(host->c_cc));
3842 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
3843 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
3844 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
3845 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
3846 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
3847 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
3848 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
3849 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
3850 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
3851 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
3852 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
3853 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
3854 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
3855 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
3856 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
3857 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
3858 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
3859 }
3860
3861 static void host_to_target_termios (void *dst, const void *src)
3862 {
3863 struct target_termios *target = dst;
3864 const struct host_termios *host = src;
3865
3866 target->c_iflag =
3867 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
3868 target->c_oflag =
3869 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
3870 target->c_cflag =
3871 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
3872 target->c_lflag =
3873 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
3874 target->c_line = host->c_line;
3875
3876 memset(target->c_cc, 0, sizeof(target->c_cc));
3877 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
3878 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
3879 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
3880 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
3881 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
3882 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
3883 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
3884 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
3885 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
3886 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
3887 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
3888 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
3889 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
3890 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
3891 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
3892 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
3893 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
3894 }
3895
3896 static const StructEntry struct_termios_def = {
3897 .convert = { host_to_target_termios, target_to_host_termios },
3898 .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
3899 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
3900 };
3901
3902 static bitmask_transtbl mmap_flags_tbl[] = {
3903 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
3904 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
3905 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
3906 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
3907 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
3908 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
3909 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
3910 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
3911 { 0, 0, 0, 0 }
3912 };
3913
3914 #if defined(TARGET_I386)
3915
3916 /* NOTE: there is really one LDT for all the threads */
3917 static uint8_t *ldt_table;
3918
3919 static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount)
3920 {
3921 int size;
3922 void *p;
3923
3924 if (!ldt_table)
3925 return 0;
3926 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
3927 if (size > bytecount)
3928 size = bytecount;
3929 p = lock_user(VERIFY_WRITE, ptr, size, 0);
3930 if (!p)
3931 return -TARGET_EFAULT;
3932 /* ??? Should this by byteswapped? */
3933 memcpy(p, ldt_table, size);
3934 unlock_user(p, ptr, size);
3935 return size;
3936 }
3937
3938 /* XXX: add locking support */
3939 static abi_long write_ldt(CPUX86State *env,
3940 abi_ulong ptr, unsigned long bytecount, int oldmode)
3941 {
3942 struct target_modify_ldt_ldt_s ldt_info;
3943 struct target_modify_ldt_ldt_s *target_ldt_info;
3944 int seg_32bit, contents, read_exec_only, limit_in_pages;
3945 int seg_not_present, useable, lm;
3946 uint32_t *lp, entry_1, entry_2;
3947
3948 if (bytecount != sizeof(ldt_info))
3949 return -TARGET_EINVAL;
3950 if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1))
3951 return -TARGET_EFAULT;
3952 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
3953 ldt_info.base_addr = tswapal(target_ldt_info->base_addr);
3954 ldt_info.limit = tswap32(target_ldt_info->limit);
3955 ldt_info.flags = tswap32(target_ldt_info->flags);
3956 unlock_user_struct(target_ldt_info, ptr, 0);
3957
3958 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
3959 return -TARGET_EINVAL;
3960 seg_32bit = ldt_info.flags & 1;
3961 contents = (ldt_info.flags >> 1) & 3;
3962 read_exec_only = (ldt_info.flags >> 3) & 1;
3963 limit_in_pages = (ldt_info.flags >> 4) & 1;
3964 seg_not_present = (ldt_info.flags >> 5) & 1;
3965 useable = (ldt_info.flags >> 6) & 1;
3966 #ifdef TARGET_ABI32
3967 lm = 0;
3968 #else
3969 lm = (ldt_info.flags >> 7) & 1;
3970 #endif
3971 if (contents == 3) {
3972 if (oldmode)
3973 return -TARGET_EINVAL;
3974 if (seg_not_present == 0)
3975 return -TARGET_EINVAL;
3976 }
3977 /* allocate the LDT */
3978 if (!ldt_table) {
3979 env->ldt.base = target_mmap(0,
3980 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE,
3981 PROT_READ|PROT_WRITE,
3982 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
3983 if (env->ldt.base == -1)
3984 return -TARGET_ENOMEM;
3985 memset(g2h(env->ldt.base), 0,
3986 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
3987 env->ldt.limit = 0xffff;
3988 ldt_table = g2h(env->ldt.base);
3989 }
3990
3991 /* NOTE: same code as Linux kernel */
3992 /* Allow LDTs to be cleared by the user. */
3993 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
3994 if (oldmode ||
3995 (contents == 0 &&
3996 read_exec_only == 1 &&
3997 seg_32bit == 0 &&
3998 limit_in_pages == 0 &&
3999 seg_not_present == 1 &&
4000 useable == 0 )) {
4001 entry_1 = 0;
4002 entry_2 = 0;
4003 goto install;
4004 }
4005 }
4006
4007 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
4008 (ldt_info.limit & 0x0ffff);
4009 entry_2 = (ldt_info.base_addr & 0xff000000) |
4010 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
4011 (ldt_info.limit & 0xf0000) |
4012 ((read_exec_only ^ 1) << 9) |
4013 (contents << 10) |
4014 ((seg_not_present ^ 1) << 15) |
4015 (seg_32bit << 22) |
4016 (limit_in_pages << 23) |
4017 (lm << 21) |
4018 0x7000;
4019 if (!oldmode)
4020 entry_2 |= (useable << 20);
4021
4022 /* Install the new entry ... */
4023 install:
4024 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
4025 lp[0] = tswap32(entry_1);
4026 lp[1] = tswap32(entry_2);
4027 return 0;
4028 }
4029
4030 /* specific and weird i386 syscalls */
4031 static abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr,
4032 unsigned long bytecount)
4033 {
4034 abi_long ret;
4035
4036 switch (func) {
4037 case 0:
4038 ret = read_ldt(ptr, bytecount);
4039 break;
4040 case 1:
4041 ret = write_ldt(env, ptr, bytecount, 1);
4042 break;
4043 case 0x11:
4044 ret = write_ldt(env, ptr, bytecount, 0);
4045 break;
4046 default:
4047 ret = -TARGET_ENOSYS;
4048 break;
4049 }
4050 return ret;
4051 }
4052
4053 #if defined(TARGET_I386) && defined(TARGET_ABI32)
4054 abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr)
4055 {
4056 uint64_t *gdt_table = g2h(env->gdt.base);
4057 struct target_modify_ldt_ldt_s ldt_info;
4058 struct target_modify_ldt_ldt_s *target_ldt_info;
4059 int seg_32bit, contents, read_exec_only, limit_in_pages;
4060 int seg_not_present, useable, lm;
4061 uint32_t *lp, entry_1, entry_2;
4062 int i;
4063
4064 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
4065 if (!target_ldt_info)
4066 return -TARGET_EFAULT;
4067 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
4068 ldt_info.base_addr = tswapal(target_ldt_info->base_addr);
4069 ldt_info.limit = tswap32(target_ldt_info->limit);
4070 ldt_info.flags = tswap32(target_ldt_info->flags);
4071 if (ldt_info.entry_number == -1) {
4072 for (i=TARGET_GDT_ENTRY_TLS_MIN; i<=TARGET_GDT_ENTRY_TLS_MAX; i++) {
4073 if (gdt_table[i] == 0) {
4074 ldt_info.entry_number = i;
4075 target_ldt_info->entry_number = tswap32(i);
4076 break;
4077 }
4078 }
4079 }
4080 unlock_user_struct(target_ldt_info, ptr, 1);
4081
4082 if (ldt_info.entry_number < TARGET_GDT_ENTRY_TLS_MIN ||
4083 ldt_info.entry_number > TARGET_GDT_ENTRY_TLS_MAX)
4084 return -TARGET_EINVAL;
4085 seg_32bit = ldt_info.flags & 1;
4086 contents = (ldt_info.flags >> 1) & 3;
4087 read_exec_only = (ldt_info.flags >> 3) & 1;
4088 limit_in_pages = (ldt_info.flags >> 4) & 1;
4089 seg_not_present = (ldt_info.flags >> 5) & 1;
4090 useable = (ldt_info.flags >> 6) & 1;
4091 #ifdef TARGET_ABI32
4092 lm = 0;
4093 #else
4094 lm = (ldt_info.flags >> 7) & 1;
4095 #endif
4096
4097 if (contents == 3) {
4098 if (seg_not_present == 0)
4099 return -TARGET_EINVAL;
4100 }
4101
4102 /* NOTE: same code as Linux kernel */
4103 /* Allow LDTs to be cleared by the user. */
4104 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
4105 if ((contents == 0 &&
4106 read_exec_only == 1 &&
4107 seg_32bit == 0 &&
4108 limit_in_pages == 0 &&
4109 seg_not_present == 1 &&
4110 useable == 0 )) {
4111 entry_1 = 0;
4112 entry_2 = 0;
4113 goto install;
4114 }
4115 }
4116
4117 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
4118 (ldt_info.limit & 0x0ffff);
4119 entry_2 = (ldt_info.base_addr & 0xff000000) |
4120 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
4121 (ldt_info.limit & 0xf0000) |
4122 ((read_exec_only ^ 1) << 9) |
4123 (contents << 10) |
4124 ((seg_not_present ^ 1) << 15) |
4125 (seg_32bit << 22) |
4126 (limit_in_pages << 23) |
4127 (useable << 20) |
4128 (lm << 21) |
4129 0x7000;
4130
4131 /* Install the new entry ... */
4132 install:
4133 lp = (uint32_t *)(gdt_table + ldt_info.entry_number);
4134 lp[0] = tswap32(entry_1);
4135 lp[1] = tswap32(entry_2);
4136 return 0;
4137 }
4138
4139 static abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr)
4140 {
4141 struct target_modify_ldt_ldt_s *target_ldt_info;
4142 uint64_t *gdt_table = g2h(env->gdt.base);
4143 uint32_t base_addr, limit, flags;
4144 int seg_32bit, contents, read_exec_only, limit_in_pages, idx;
4145 int seg_not_present, useable, lm;
4146 uint32_t *lp, entry_1, entry_2;
4147
4148 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
4149 if (!target_ldt_info)
4150 return -TARGET_EFAULT;
4151 idx = tswap32(target_ldt_info->entry_number);
4152 if (idx < TARGET_GDT_ENTRY_TLS_MIN ||
4153 idx > TARGET_GDT_ENTRY_TLS_MAX) {
4154 unlock_user_struct(target_ldt_info, ptr, 1);
4155 return -TARGET_EINVAL;
4156 }
4157 lp = (uint32_t *)(gdt_table + idx);
4158 entry_1 = tswap32(lp[0]);
4159 entry_2 = tswap32(lp[1]);
4160
4161 read_exec_only = ((entry_2 >> 9) & 1) ^ 1;
4162 contents = (entry_2 >> 10) & 3;
4163 seg_not_present = ((entry_2 >> 15) & 1) ^ 1;
4164 seg_32bit = (entry_2 >> 22) & 1;
4165 limit_in_pages = (entry_2 >> 23) & 1;
4166 useable = (entry_2 >> 20) & 1;
4167 #ifdef TARGET_ABI32
4168 lm = 0;
4169 #else
4170 lm = (entry_2 >> 21) & 1;
4171 #endif
4172 flags = (seg_32bit << 0) | (contents << 1) |
4173 (read_exec_only << 3) | (limit_in_pages << 4) |
4174 (seg_not_present << 5) | (useable << 6) | (lm << 7);
4175 limit = (entry_1 & 0xffff) | (entry_2 & 0xf0000);
4176 base_addr = (entry_1 >> 16) |
4177 (entry_2 & 0xff000000) |
4178 ((entry_2 & 0xff) << 16);
4179 target_ldt_info->base_addr = tswapal(base_addr);
4180 target_ldt_info->limit = tswap32(limit);
4181 target_ldt_info->flags = tswap32(flags);
4182 unlock_user_struct(target_ldt_info, ptr, 1);
4183 return 0;
4184 }
4185 #endif /* TARGET_I386 && TARGET_ABI32 */
4186
4187 #ifndef TARGET_ABI32
4188 abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr)
4189 {
4190 abi_long ret = 0;
4191 abi_ulong val;
4192 int idx;
4193
4194 switch(code) {
4195 case TARGET_ARCH_SET_GS:
4196 case TARGET_ARCH_SET_FS:
4197 if (code == TARGET_ARCH_SET_GS)
4198 idx = R_GS;
4199 else
4200 idx = R_FS;
4201 cpu_x86_load_seg(env, idx, 0);
4202 env->segs[idx].base = addr;
4203 break;
4204 case TARGET_ARCH_GET_GS:
4205 case TARGET_ARCH_GET_FS:
4206 if (code == TARGET_ARCH_GET_GS)
4207 idx = R_GS;
4208 else
4209 idx = R_FS;
4210 val = env->segs[idx].base;
4211 if (put_user(val, addr, abi_ulong))
4212 ret = -TARGET_EFAULT;
4213 break;
4214 default:
4215 ret = -TARGET_EINVAL;
4216 break;
4217 }
4218 return ret;
4219 }
4220 #endif
4221
4222 #endif /* defined(TARGET_I386) */
4223
4224 #define NEW_STACK_SIZE 0x40000
4225
4226
4227 static pthread_mutex_t clone_lock = PTHREAD_MUTEX_INITIALIZER;
4228 typedef struct {
4229 CPUArchState *env;
4230 pthread_mutex_t mutex;
4231 pthread_cond_t cond;
4232 pthread_t thread;
4233 uint32_t tid;
4234 abi_ulong child_tidptr;
4235 abi_ulong parent_tidptr;
4236 sigset_t sigmask;
4237 } new_thread_info;
4238
4239 static void *clone_func(void *arg)
4240 {
4241 new_thread_info *info = arg;
4242 CPUArchState *env;
4243 CPUState *cpu;
4244 TaskState *ts;
4245
4246 env = info->env;
4247 cpu = ENV_GET_CPU(env);
4248 thread_cpu = cpu;
4249 ts = (TaskState *)env->opaque;
4250 info->tid = gettid();
4251 cpu->host_tid = info->tid;
4252 task_settid(ts);
4253 if (info->child_tidptr)
4254 put_user_u32(info->tid, info->child_tidptr);
4255 if (info->parent_tidptr)
4256 put_user_u32(info->tid, info->parent_tidptr);
4257 /* Enable signals. */
4258 sigprocmask(SIG_SETMASK, &info->sigmask, NULL);
4259 /* Signal to the parent that we're ready. */
4260 pthread_mutex_lock(&info->mutex);
4261 pthread_cond_broadcast(&info->cond);
4262 pthread_mutex_unlock(&info->mutex);
4263 /* Wait until the parent has finshed initializing the tls state. */
4264 pthread_mutex_lock(&clone_lock);
4265 pthread_mutex_unlock(&clone_lock);
4266 cpu_loop(env);
4267 /* never exits */
4268 return NULL;
4269 }
4270
4271 /* do_fork() Must return host values and target errnos (unlike most
4272 do_*() functions). */
4273 static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp,
4274 abi_ulong parent_tidptr, target_ulong newtls,
4275 abi_ulong child_tidptr)
4276 {
4277 int ret;
4278 TaskState *ts;
4279 CPUArchState *new_env;
4280 unsigned int nptl_flags;
4281 sigset_t sigmask;
4282
4283 /* Emulate vfork() with fork() */
4284 if (flags & CLONE_VFORK)
4285 flags &= ~(CLONE_VFORK | CLONE_VM);
4286
4287 if (flags & CLONE_VM) {
4288 TaskState *parent_ts = (TaskState *)env->opaque;
4289 new_thread_info info;
4290 pthread_attr_t attr;
4291
4292 ts = g_malloc0(sizeof(TaskState));
4293 init_task_state(ts);
4294 /* we create a new CPU instance. */
4295 new_env = cpu_copy(env);
4296 /* Init regs that differ from the parent. */
4297 cpu_clone_regs(new_env, newsp);
4298 new_env->opaque = ts;
4299 ts->bprm = parent_ts->bprm;
4300 ts->info = parent_ts->info;
4301 nptl_flags = flags;
4302 flags &= ~CLONE_NPTL_FLAGS2;
4303
4304 if (nptl_flags & CLONE_CHILD_CLEARTID) {
4305 ts->child_tidptr = child_tidptr;
4306 }
4307
4308 if (nptl_flags & CLONE_SETTLS)
4309 cpu_set_tls (new_env, newtls);
4310
4311 /* Grab a mutex so that thread setup appears atomic. */
4312 pthread_mutex_lock(&clone_lock);
4313
4314 memset(&info, 0, sizeof(info));
4315 pthread_mutex_init(&info.mutex, NULL);
4316 pthread_mutex_lock(&info.mutex);
4317 pthread_cond_init(&info.cond, NULL);
4318 info.env = new_env;
4319 if (nptl_flags & CLONE_CHILD_SETTID)
4320 info.child_tidptr = child_tidptr;
4321 if (nptl_flags & CLONE_PARENT_SETTID)
4322 info.parent_tidptr = parent_tidptr;
4323
4324 ret = pthread_attr_init(&attr);
4325 ret = pthread_attr_setstacksize(&attr, NEW_STACK_SIZE);
4326 ret = pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
4327 /* It is not safe to deliver signals until the child has finished
4328 initializing, so temporarily block all signals. */
4329 sigfillset(&sigmask);
4330 sigprocmask(SIG_BLOCK, &sigmask, &info.sigmask);
4331
4332 ret = pthread_create(&info.thread, &attr, clone_func, &info);
4333 /* TODO: Free new CPU state if thread creation failed. */
4334
4335 sigprocmask(SIG_SETMASK, &info.sigmask, NULL);
4336 pthread_attr_destroy(&attr);
4337 if (ret == 0) {
4338 /* Wait for the child to initialize. */
4339 pthread_cond_wait(&info.cond, &info.mutex);
4340 ret = info.tid;
4341 if (flags & CLONE_PARENT_SETTID)
4342 put_user_u32(ret, parent_tidptr);
4343 } else {
4344 ret = -1;
4345 }
4346 pthread_mutex_unlock(&info.mutex);
4347 pthread_cond_destroy(&info.cond);
4348 pthread_mutex_destroy(&info.mutex);
4349 pthread_mutex_unlock(&clone_lock);
4350 } else {
4351 /* if no CLONE_VM, we consider it is a fork */
4352 if ((flags & ~(CSIGNAL | CLONE_NPTL_FLAGS2)) != 0)
4353 return -EINVAL;
4354 fork_start();
4355 ret = fork();
4356 if (ret == 0) {
4357 /* Child Process. */
4358 cpu_clone_regs(env, newsp);
4359 fork_end(1);
4360 /* There is a race condition here. The parent process could
4361 theoretically read the TID in the child process before the child
4362 tid is set. This would require using either ptrace
4363 (not implemented) or having *_tidptr to point at a shared memory
4364 mapping. We can't repeat the spinlock hack used above because
4365 the child process gets its own copy of the lock. */
4366 if (flags & CLONE_CHILD_SETTID)
4367 put_user_u32(gettid(), child_tidptr);
4368 if (flags & CLONE_PARENT_SETTID)
4369 put_user_u32(gettid(), parent_tidptr);
4370 ts = (TaskState *)env->opaque;
4371 if (flags & CLONE_SETTLS)
4372 cpu_set_tls (env, newtls);
4373 if (flags & CLONE_CHILD_CLEARTID)
4374 ts->child_tidptr = child_tidptr;
4375 } else {
4376 fork_end(0);
4377 }
4378 }
4379 return ret;
4380 }
4381
4382 /* warning : doesn't handle linux specific flags... */
4383 static int target_to_host_fcntl_cmd(int cmd)
4384 {
4385 switch(cmd) {
4386 case TARGET_F_DUPFD:
4387 case TARGET_F_GETFD:
4388 case TARGET_F_SETFD:
4389 case TARGET_F_GETFL:
4390 case TARGET_F_SETFL:
4391 return cmd;
4392 case TARGET_F_GETLK:
4393 return F_GETLK;
4394 case TARGET_F_SETLK:
4395 return F_SETLK;
4396 case TARGET_F_SETLKW:
4397 return F_SETLKW;
4398 case TARGET_F_GETOWN:
4399 return F_GETOWN;
4400 case TARGET_F_SETOWN:
4401 return F_SETOWN;
4402 case TARGET_F_GETSIG:
4403 return F_GETSIG;
4404 case TARGET_F_SETSIG:
4405 return F_SETSIG;
4406 #if TARGET_ABI_BITS == 32
4407 case TARGET_F_GETLK64:
4408 return F_GETLK64;
4409 case TARGET_F_SETLK64:
4410 return F_SETLK64;
4411 case TARGET_F_SETLKW64:
4412 return F_SETLKW64;
4413 #endif
4414 case TARGET_F_SETLEASE:
4415 return F_SETLEASE;
4416 case TARGET_F_GETLEASE:
4417 return F_GETLEASE;
4418 #ifdef F_DUPFD_CLOEXEC
4419 case TARGET_F_DUPFD_CLOEXEC:
4420 return F_DUPFD_CLOEXEC;
4421 #endif
4422 case TARGET_F_NOTIFY:
4423 return F_NOTIFY;
4424 default:
4425 return -TARGET_EINVAL;
4426 }
4427 return -TARGET_EINVAL;
4428 }
4429
4430 #define TRANSTBL_CONVERT(a) { -1, TARGET_##a, -1, a }
4431 static const bitmask_transtbl flock_tbl[] = {
4432 TRANSTBL_CONVERT(F_RDLCK),
4433 TRANSTBL_CONVERT(F_WRLCK),
4434 TRANSTBL_CONVERT(F_UNLCK),
4435 TRANSTBL_CONVERT(F_EXLCK),
4436 TRANSTBL_CONVERT(F_SHLCK),
4437 { 0, 0, 0, 0 }
4438 };
4439
4440 static abi_long do_fcntl(int fd, int cmd, abi_ulong arg)
4441 {
4442 struct flock fl;
4443 struct target_flock *target_fl;
4444 struct flock64 fl64;
4445 struct target_flock64 *target_fl64;
4446 abi_long ret;
4447 int host_cmd = target_to_host_fcntl_cmd(cmd);
4448
4449 if (host_cmd == -TARGET_EINVAL)
4450 return host_cmd;
4451
4452 switch(cmd) {
4453 case TARGET_F_GETLK:
4454 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1))
4455 return -TARGET_EFAULT;
4456 fl.l_type =
4457 target_to_host_bitmask(tswap16(target_fl->l_type), flock_tbl);
4458 fl.l_whence = tswap16(target_fl->l_whence);
4459 fl.l_start = tswapal(target_fl->l_start);
4460 fl.l_len = tswapal(target_fl->l_len);
4461 fl.l_pid = tswap32(target_fl->l_pid);
4462 unlock_user_struct(target_fl, arg, 0);
4463 ret = get_errno(fcntl(fd, host_cmd, &fl));
4464 if (ret == 0) {
4465 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg, 0))
4466 return -TARGET_EFAULT;
4467 target_fl->l_type =
4468 host_to_target_bitmask(tswap16(fl.l_type), flock_tbl);
4469 target_fl->l_whence = tswap16(fl.l_whence);
4470 target_fl->l_start = tswapal(fl.l_start);
4471 target_fl->l_len = tswapal(fl.l_len);
4472 target_fl->l_pid = tswap32(fl.l_pid);
4473 unlock_user_struct(target_fl, arg, 1);
4474 }
4475 break;
4476
4477 case TARGET_F_SETLK:
4478 case TARGET_F_SETLKW:
4479 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1))
4480 return -TARGET_EFAULT;
4481 fl.l_type =
4482 target_to_host_bitmask(tswap16(target_fl->l_type), flock_tbl);
4483 fl.l_whence = tswap16(target_fl->l_whence);
4484 fl.l_start = tswapal(target_fl->l_start);
4485 fl.l_len = tswapal(target_fl->l_len);
4486 fl.l_pid = tswap32(target_fl->l_pid);
4487 unlock_user_struct(target_fl, arg, 0);
4488 ret = get_errno(fcntl(fd, host_cmd, &fl));
4489 break;
4490
4491 case TARGET_F_GETLK64:
4492 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1))
4493 return -TARGET_EFAULT;
4494 fl64.l_type =
4495 target_to_host_bitmask(tswap16(target_fl64->l_type), flock_tbl) >> 1;
4496 fl64.l_whence = tswap16(target_fl64->l_whence);
4497 fl64.l_start = tswap64(target_fl64->l_start);
4498 fl64.l_len = tswap64(target_fl64->l_len);
4499 fl64.l_pid = tswap32(target_fl64->l_pid);
4500 unlock_user_struct(target_fl64, arg, 0);
4501 ret = get_errno(fcntl(fd, host_cmd, &fl64));
4502 if (ret == 0) {
4503 if (!lock_user_struct(VERIFY_WRITE, target_fl64, arg, 0))
4504 return -TARGET_EFAULT;
4505 target_fl64->l_type =
4506 host_to_target_bitmask(tswap16(fl64.l_type), flock_tbl) >> 1;
4507 target_fl64->l_whence = tswap16(fl64.l_whence);
4508 target_fl64->l_start = tswap64(fl64.l_start);
4509 target_fl64->l_len = tswap64(fl64.l_len);
4510 target_fl64->l_pid = tswap32(fl64.l_pid);
4511 unlock_user_struct(target_fl64, arg, 1);
4512 }
4513 break;
4514 case TARGET_F_SETLK64:
4515 case TARGET_F_SETLKW64:
4516 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1))
4517 return -TARGET_EFAULT;
4518 fl64.l_type =
4519 target_to_host_bitmask(tswap16(target_fl64->l_type), flock_tbl) >> 1;
4520 fl64.l_whence = tswap16(target_fl64->l_whence);
4521 fl64.l_start = tswap64(target_fl64->l_start);
4522 fl64.l_len = tswap64(target_fl64->l_len);
4523 fl64.l_pid = tswap32(target_fl64->l_pid);
4524 unlock_user_struct(target_fl64, arg, 0);
4525 ret = get_errno(fcntl(fd, host_cmd, &fl64));
4526 break;
4527
4528 case TARGET_F_GETFL:
4529 ret = get_errno(fcntl(fd, host_cmd, arg));
4530 if (ret >= 0) {
4531 ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
4532 }
4533 break;
4534
4535 case TARGET_F_SETFL:
4536 ret = get_errno(fcntl(fd, host_cmd, target_to_host_bitmask(arg, fcntl_flags_tbl)));
4537 break;
4538
4539 case TARGET_F_SETOWN:
4540 case TARGET_F_GETOWN:
4541 case TARGET_F_SETSIG:
4542 case TARGET_F_GETSIG:
4543 case TARGET_F_SETLEASE:
4544 case TARGET_F_GETLEASE:
4545 ret = get_errno(fcntl(fd, host_cmd, arg));
4546 break;
4547
4548 default:
4549 ret = get_errno(fcntl(fd, cmd, arg));
4550 break;
4551 }
4552 return ret;
4553 }
4554
4555 #ifdef USE_UID16
4556
4557 static inline int high2lowuid(int uid)
4558 {
4559 if (uid > 65535)
4560 return 65534;
4561 else
4562 return uid;
4563 }
4564
4565 static inline int high2lowgid(int gid)
4566 {
4567 if (gid > 65535)
4568 return 65534;
4569 else
4570 return gid;
4571 }
4572
4573 static inline int low2highuid(int uid)
4574 {
4575 if ((int16_t)uid == -1)
4576 return -1;
4577 else
4578 return uid;
4579 }
4580
4581 static inline int low2highgid(int gid)
4582 {
4583 if ((int16_t)gid == -1)
4584 return -1;
4585 else
4586 return gid;
4587 }
4588 static inline int tswapid(int id)
4589 {
4590 return tswap16(id);
4591 }
4592 #else /* !USE_UID16 */
4593 static inline int high2lowuid(int uid)
4594 {
4595 return uid;
4596 }
4597 static inline int high2lowgid(int gid)
4598 {
4599 return gid;
4600 }
4601 static inline int low2highuid(int uid)
4602 {
4603 return uid;
4604 }
4605 static inline int low2highgid(int gid)
4606 {
4607 return gid;
4608 }
4609 static inline int tswapid(int id)
4610 {
4611 return tswap32(id);
4612 }
4613 #endif /* USE_UID16 */
4614
4615 void syscall_init(void)
4616 {
4617 IOCTLEntry *ie;
4618 const argtype *arg_type;
4619 int size;
4620 int i;
4621
4622 #define STRUCT(name, ...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
4623 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
4624 #include "syscall_types.h"
4625 #undef STRUCT
4626 #undef STRUCT_SPECIAL
4627
4628 /* Build target_to_host_errno_table[] table from
4629 * host_to_target_errno_table[]. */
4630 for (i = 0; i < ERRNO_TABLE_SIZE; i++) {
4631 target_to_host_errno_table[host_to_target_errno_table[i]] = i;
4632 }
4633
4634 /* we patch the ioctl size if necessary. We rely on the fact that
4635 no ioctl has all the bits at '1' in the size field */
4636 ie = ioctl_entries;
4637 while (ie->target_cmd != 0) {
4638 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
4639 TARGET_IOC_SIZEMASK) {
4640 arg_type = ie->arg_type;
4641 if (arg_type[0] != TYPE_PTR) {
4642 fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
4643 ie->target_cmd);
4644 exit(1);
4645 }
4646 arg_type++;
4647 size = thunk_type_size(arg_type, 0);
4648 ie->target_cmd = (ie->target_cmd &
4649 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
4650 (size << TARGET_IOC_SIZESHIFT);
4651 }
4652
4653 /* automatic consistency check if same arch */
4654 #if (defined(__i386__) && defined(TARGET_I386) && defined(TARGET_ABI32)) || \
4655 (defined(__x86_64__) && defined(TARGET_X86_64))
4656 if (unlikely(ie->target_cmd != ie->host_cmd)) {
4657 fprintf(stderr, "ERROR: ioctl(%s): target=0x%x host=0x%x\n",
4658 ie->name, ie->target_cmd, ie->host_cmd);
4659 }
4660 #endif
4661 ie++;
4662 }
4663 }
4664
4665 #if TARGET_ABI_BITS == 32
4666 static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
4667 {
4668 #ifdef TARGET_WORDS_BIGENDIAN
4669 return ((uint64_t)word0 << 32) | word1;
4670 #else
4671 return ((uint64_t)word1 << 32) | word0;
4672 #endif
4673 }
4674 #else /* TARGET_ABI_BITS == 32 */
4675 static inline uint64_t target_offset64(uint64_t word0, uint64_t word1)
4676 {
4677 return word0;
4678 }
4679 #endif /* TARGET_ABI_BITS != 32 */
4680
4681 #ifdef TARGET_NR_truncate64
4682 static inline abi_long target_truncate64(void *cpu_env, const char *arg1,
4683 abi_long arg2,
4684 abi_long arg3,
4685 abi_long arg4)
4686 {
4687 if (regpairs_aligned(cpu_env)) {
4688 arg2 = arg3;
4689 arg3 = arg4;
4690 }
4691 return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
4692 }
4693 #endif
4694
4695 #ifdef TARGET_NR_ftruncate64
4696 static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1,
4697 abi_long arg2,
4698 abi_long arg3,
4699 abi_long arg4)
4700 {
4701 if (regpairs_aligned(cpu_env)) {
4702 arg2 = arg3;
4703 arg3 = arg4;
4704 }
4705 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
4706 }
4707 #endif
4708
4709 static inline abi_long target_to_host_timespec(struct timespec *host_ts,
4710 abi_ulong target_addr)
4711 {
4712 struct target_timespec *target_ts;
4713
4714 if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1))
4715 return -TARGET_EFAULT;
4716 host_ts->tv_sec = tswapal(target_ts->tv_sec);
4717 host_ts->tv_nsec = tswapal(target_ts->tv_nsec);
4718 unlock_user_struct(target_ts, target_addr, 0);
4719 return 0;
4720 }
4721
4722 static inline abi_long host_to_target_timespec(abi_ulong target_addr,
4723 struct timespec *host_ts)
4724 {
4725 struct target_timespec *target_ts;
4726
4727 if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0))
4728 return -TARGET_EFAULT;
4729 target_ts->tv_sec = tswapal(host_ts->tv_sec);
4730 target_ts->tv_nsec = tswapal(host_ts->tv_nsec);
4731 unlock_user_struct(target_ts, target_addr, 1);
4732 return 0;
4733 }
4734
4735 #if defined(TARGET_NR_stat64) || defined(TARGET_NR_newfstatat)
4736 static inline abi_long host_to_target_stat64(void *cpu_env,
4737 abi_ulong target_addr,
4738 struct stat *host_st)
4739 {
4740 #if defined(TARGET_ARM) && defined(TARGET_ABI32)
4741 if (((CPUARMState *)cpu_env)->eabi) {
4742 struct target_eabi_stat64 *target_st;
4743
4744 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
4745 return -TARGET_EFAULT;
4746 memset(target_st, 0, sizeof(struct target_eabi_stat64));
4747 __put_user(host_st->st_dev, &target_st->st_dev);
4748 __put_user(host_st->st_ino, &target_st->st_ino);
4749 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
4750 __put_user(host_st->st_ino, &target_st->__st_ino);
4751 #endif
4752 __put_user(host_st->st_mode, &target_st->st_mode);
4753 __put_user(host_st->st_nlink, &target_st->st_nlink);
4754 __put_user(host_st->st_uid, &target_st->st_uid);
4755 __put_user(host_st->st_gid, &target_st->st_gid);
4756 __put_user(host_st->st_rdev, &target_st->st_rdev);
4757 __put_user(host_st->st_size, &target_st->st_size);
4758 __put_user(host_st->st_blksize, &target_st->st_blksize);
4759 __put_user(host_st->st_blocks, &target_st->st_blocks);
4760 __put_user(host_st->st_atime, &target_st->target_st_atime);
4761 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
4762 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
4763 unlock_user_struct(target_st, target_addr, 1);
4764 } else
4765 #endif
4766 {
4767 #if TARGET_ABI_BITS == 64 && !defined(TARGET_ALPHA)
4768 struct target_stat *target_st;
4769 #else
4770 struct target_stat64 *target_st;
4771 #endif
4772
4773 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
4774 return -TARGET_EFAULT;
4775 memset(target_st, 0, sizeof(*target_st));
4776 __put_user(host_st->st_dev, &target_st->st_dev);
4777 __put_user(host_st->st_ino, &target_st->st_ino);
4778 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
4779 __put_user(host_st->st_ino, &target_st->__st_ino);
4780 #endif
4781 __put_user(host_st->st_mode, &target_st->st_mode);
4782 __put_user(host_st->st_nlink, &target_st->st_nlink);
4783 __put_user(host_st->st_uid, &target_st->st_uid);
4784 __put_user(host_st->st_gid, &target_st->st_gid);
4785 __put_user(host_st->st_rdev, &target_st->st_rdev);
4786 /* XXX: better use of kernel struct */
4787 __put_user(host_st->st_size, &target_st->st_size);
4788 __put_user(host_st->st_blksize, &target_st->st_blksize);
4789 __put_user(host_st->st_blocks, &target_st->st_blocks);
4790 __put_user(host_st->st_atime, &target_st->target_st_atime);
4791 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
4792 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
4793 unlock_user_struct(target_st, target_addr, 1);
4794 }
4795
4796 return 0;
4797 }
4798 #endif
4799
4800 /* ??? Using host futex calls even when target atomic operations
4801 are not really atomic probably breaks things. However implementing
4802 futexes locally would make futexes shared between multiple processes
4803 tricky. However they're probably useless because guest atomic
4804 operations won't work either. */
4805 static int do_futex(target_ulong uaddr, int op, int val, target_ulong timeout,
4806 target_ulong uaddr2, int val3)
4807 {
4808 struct timespec ts, *pts;
4809 int base_op;
4810
4811 /* ??? We assume FUTEX_* constants are the same on both host
4812 and target. */
4813 #ifdef FUTEX_CMD_MASK
4814 base_op = op & FUTEX_CMD_MASK;
4815 #else
4816 base_op = op;
4817 #endif
4818 switch (base_op) {
4819 case FUTEX_WAIT:
4820 case FUTEX_WAIT_BITSET:
4821 if (timeout) {
4822 pts = &ts;
4823 target_to_host_timespec(pts, timeout);
4824 } else {
4825 pts = NULL;
4826 }
4827 return get_errno(sys_futex(g2h(uaddr), op, tswap32(val),
4828 pts, NULL, val3));
4829 case FUTEX_WAKE:
4830 return get_errno(sys_futex(g2h(uaddr), op, val, NULL, NULL, 0));
4831 case FUTEX_FD:
4832 return get_errno(sys_futex(g2h(uaddr), op, val, NULL, NULL, 0));
4833 case FUTEX_REQUEUE:
4834 case FUTEX_CMP_REQUEUE:
4835 case FUTEX_WAKE_OP:
4836 /* For FUTEX_REQUEUE, FUTEX_CMP_REQUEUE, and FUTEX_WAKE_OP, the
4837 TIMEOUT parameter is interpreted as a uint32_t by the kernel.
4838 But the prototype takes a `struct timespec *'; insert casts
4839 to satisfy the compiler. We do not need to tswap TIMEOUT
4840 since it's not compared to guest memory. */
4841 pts = (struct timespec *)(uintptr_t) timeout;
4842 return get_errno(sys_futex(g2h(uaddr), op, val, pts,
4843 g2h(uaddr2),
4844 (base_op == FUTEX_CMP_REQUEUE
4845 ? tswap32(val3)
4846 : val3)));
4847 default:
4848 return -TARGET_ENOSYS;
4849 }
4850 }
4851
4852 /* Map host to target signal numbers for the wait family of syscalls.
4853 Assume all other status bits are the same. */
4854 int host_to_target_waitstatus(int status)
4855 {
4856 if (WIFSIGNALED(status)) {
4857 return host_to_target_signal(WTERMSIG(status)) | (status & ~0x7f);
4858 }
4859 if (WIFSTOPPED(status)) {
4860 return (host_to_target_signal(WSTOPSIG(status)) << 8)
4861 | (status & 0xff);
4862 }
4863 return status;
4864 }
4865
4866 static int relstr_to_int(const char *s)
4867 {
4868 /* Convert a uname release string like "2.6.18" to an integer
4869 * of the form 0x020612. (Beware that 0x020612 is *not* 2.6.12.)
4870 */
4871 int i, n, tmp;
4872
4873 tmp = 0;
4874 for (i = 0; i < 3; i++) {
4875 n = 0;
4876 while (*s >= '0' && *s <= '9') {
4877 n *= 10;
4878 n += *s - '0';
4879 s++;
4880 }
4881 tmp = (tmp << 8) + n;
4882 if (*s == '.') {
4883 s++;
4884 }
4885 }
4886 return tmp;
4887 }
4888
4889 int get_osversion(void)
4890 {
4891 static int osversion;
4892 struct new_utsname buf;
4893 const char *s;
4894
4895 if (osversion)
4896 return osversion;
4897 if (qemu_uname_release && *qemu_uname_release) {
4898 s = qemu_uname_release;
4899 } else {
4900 if (sys_uname(&buf))
4901 return 0;
4902 s = buf.release;
4903 }
4904 osversion = relstr_to_int(s);
4905 return osversion;
4906 }
4907
4908 void init_qemu_uname_release(void)
4909 {
4910 /* Initialize qemu_uname_release for later use.
4911 * If the host kernel is too old and the user hasn't asked for
4912 * a specific fake version number, we might want to fake a minimum
4913 * target kernel version.
4914 */
4915 #ifdef UNAME_MINIMUM_RELEASE
4916 struct new_utsname buf;
4917
4918 if (qemu_uname_release && *qemu_uname_release) {
4919 return;
4920 }
4921
4922 if (sys_uname(&buf)) {
4923 return;
4924 }
4925
4926 if (relstr_to_int(buf.release) < relstr_to_int(UNAME_MINIMUM_RELEASE)) {
4927 qemu_uname_release = UNAME_MINIMUM_RELEASE;
4928 }
4929 #endif
4930 }
4931
4932 static int open_self_maps(void *cpu_env, int fd)
4933 {
4934 #if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32)
4935 TaskState *ts = ((CPUArchState *)cpu_env)->opaque;
4936 #endif
4937 FILE *fp;
4938 char *line = NULL;
4939 size_t len = 0;
4940 ssize_t read;
4941
4942 fp = fopen("/proc/self/maps", "r");
4943 if (fp == NULL) {
4944 return -EACCES;
4945 }
4946
4947 while ((read = getline(&line, &len, fp)) != -1) {
4948 int fields, dev_maj, dev_min, inode;
4949 uint64_t min, max, offset;
4950 char flag_r, flag_w, flag_x, flag_p;
4951 char path[512] = "";
4952 fields = sscanf(line, "%"PRIx64"-%"PRIx64" %c%c%c%c %"PRIx64" %x:%x %d"
4953 " %512s", &min, &max, &flag_r, &flag_w, &flag_x,
4954 &flag_p, &offset, &dev_maj, &dev_min, &inode, path);
4955
4956 if ((fields < 10) || (fields > 11)) {
4957 continue;
4958 }
4959 if (!strncmp(path, "[stack]", 7)) {
4960 continue;
4961 }
4962 if (h2g_valid(min) && h2g_valid(max)) {
4963 dprintf(fd, TARGET_ABI_FMT_lx "-" TARGET_ABI_FMT_lx
4964 " %c%c%c%c %08" PRIx64 " %02x:%02x %d %s%s\n",
4965 h2g(min), h2g(max), flag_r, flag_w,
4966 flag_x, flag_p, offset, dev_maj, dev_min, inode,
4967 path[0] ? " " : "", path);
4968 }
4969 }
4970
4971 free(line);
4972 fclose(fp);
4973
4974 #if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32)
4975 dprintf(fd, "%08llx-%08llx rw-p %08llx 00:00 0 [stack]\n",
4976 (unsigned long long)ts->info->stack_limit,
4977 (unsigned long long)(ts->info->start_stack +
4978 (TARGET_PAGE_SIZE - 1)) & TARGET_PAGE_MASK,
4979 (unsigned long long)0);
4980 #endif
4981
4982 return 0;
4983 }
4984
4985 static int open_self_stat(void *cpu_env, int fd)
4986 {
4987 TaskState *ts = ((CPUArchState *)cpu_env)->opaque;
4988 abi_ulong start_stack = ts->info->start_stack;
4989 int i;
4990
4991 for (i = 0; i < 44; i++) {
4992 char buf[128];
4993 int len;
4994 uint64_t val = 0;
4995
4996 if (i == 0) {
4997 /* pid */
4998 val = getpid();
4999 snprintf(buf, sizeof(buf), "%"PRId64 " ", val);
5000 } else if (i == 1) {
5001 /* app name */
5002 snprintf(buf, sizeof(buf), "(%s) ", ts->bprm->argv[0]);
5003 } else if (i == 27) {
5004 /* stack bottom */
5005 val = start_stack;
5006 snprintf(buf, sizeof(buf), "%"PRId64 " ", val);
5007 } else {
5008 /* for the rest, there is MasterCard */
5009 snprintf(buf, sizeof(buf), "0%c", i == 43 ? '\n' : ' ');
5010 }
5011
5012 len = strlen(buf);
5013 if (write(fd, buf, len) != len) {
5014 return -1;
5015 }
5016 }
5017
5018 return 0;
5019 }
5020
5021 static int open_self_auxv(void *cpu_env, int fd)
5022 {
5023 TaskState *ts = ((CPUArchState *)cpu_env)->opaque;
5024 abi_ulong auxv = ts->info->saved_auxv;
5025 abi_ulong len = ts->info->auxv_len;
5026 char *ptr;
5027
5028 /*
5029 * Auxiliary vector is stored in target process stack.
5030 * read in whole auxv vector and copy it to file
5031 */
5032 ptr = lock_user(VERIFY_READ, auxv, len, 0);
5033 if (ptr != NULL) {
5034 while (len > 0) {
5035 ssize_t r;
5036 r = write(fd, ptr, len);
5037 if (r <= 0) {
5038 break;
5039 }
5040 len -= r;
5041 ptr += r;
5042 }
5043 lseek(fd, 0, SEEK_SET);
5044 unlock_user(ptr, auxv, len);
5045 }
5046
5047 return 0;
5048 }
5049
5050 static int is_proc_myself(const char *filename, const char *entry)
5051 {
5052 if (!strncmp(filename, "/proc/", strlen("/proc/"))) {
5053 filename += strlen("/proc/");
5054 if (!strncmp(filename, "self/", strlen("self/"))) {
5055 filename += strlen("self/");
5056 } else if (*filename >= '1' && *filename <= '9') {
5057 char myself[80];
5058 snprintf(myself, sizeof(myself), "%d/", getpid());
5059 if (!strncmp(filename, myself, strlen(myself))) {
5060 filename += strlen(myself);
5061 } else {
5062 return 0;
5063 }
5064 } else {
5065 return 0;
5066 }
5067 if (!strcmp(filename, entry)) {
5068 return 1;
5069 }
5070 }
5071 return 0;
5072 }
5073
5074 static int do_open(void *cpu_env, const char *pathname, int flags, mode_t mode)
5075 {
5076 struct fake_open {
5077 const char *filename;
5078 int (*fill)(void *cpu_env, int fd);
5079 };
5080 const struct fake_open *fake_open;
5081 static const struct fake_open fakes[] = {
5082 { "maps", open_self_maps },
5083 { "stat", open_self_stat },
5084 { "auxv", open_self_auxv },
5085 { NULL, NULL }
5086 };
5087
5088 for (fake_open = fakes; fake_open->filename; fake_open++) {
5089 if (is_proc_myself(pathname, fake_open->filename)) {
5090 break;
5091 }
5092 }
5093
5094 if (fake_open->filename) {
5095 const char *tmpdir;
5096 char filename[PATH_MAX];
5097 int fd, r;
5098
5099 /* create temporary file to map stat to */
5100 tmpdir = getenv("TMPDIR");
5101 if (!tmpdir)
5102 tmpdir = "/tmp";
5103 snprintf(filename, sizeof(filename), "%s/qemu-open.XXXXXX", tmpdir);
5104 fd = mkstemp(filename);
5105 if (fd < 0) {
5106 return fd;
5107 }
5108 unlink(filename);
5109
5110 if ((r = fake_open->fill(cpu_env, fd))) {
5111 close(fd);
5112 return r;
5113 }
5114 lseek(fd, 0, SEEK_SET);
5115
5116 return fd;
5117 }
5118
5119 return get_errno(open(path(pathname), flags, mode));
5120 }
5121
5122 /* do_syscall() should always have a single exit point at the end so
5123 that actions, such as logging of syscall results, can be performed.
5124 All errnos that do_syscall() returns must be -TARGET_<errcode>. */
5125 abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
5126 abi_long arg2, abi_long arg3, abi_long arg4,
5127 abi_long arg5, abi_long arg6, abi_long arg7,
5128 abi_long arg8)
5129 {
5130 CPUState *cpu = ENV_GET_CPU(cpu_env);
5131 abi_long ret;
5132 struct stat st;
5133 struct statfs stfs;
5134 void *p;
5135
5136 #ifdef DEBUG
5137 gemu_log("syscall %d", num);
5138 #endif
5139 if(do_strace)
5140 print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6);
5141
5142 switch(num) {
5143 case TARGET_NR_exit:
5144 /* In old applications this may be used to implement _exit(2).
5145 However in threaded applictions it is used for thread termination,
5146 and _exit_group is used for application termination.
5147 Do thread termination if we have more then one thread. */
5148 /* FIXME: This probably breaks if a signal arrives. We should probably
5149 be disabling signals. */
5150 if (CPU_NEXT(first_cpu)) {
5151 TaskState *ts;
5152
5153 cpu_list_lock();
5154 /* Remove the CPU from the list. */
5155 QTAILQ_REMOVE(&cpus, cpu, node);
5156 cpu_list_unlock();
5157 ts = ((CPUArchState *)cpu_env)->opaque;
5158 if (ts->child_tidptr) {
5159 put_user_u32(0, ts->child_tidptr);
5160 sys_futex(g2h(ts->child_tidptr), FUTEX_WAKE, INT_MAX,
5161 NULL, NULL, 0);
5162 }
5163 thread_cpu = NULL;
5164 object_unref(OBJECT(ENV_GET_CPU(cpu_env)));
5165 g_free(ts);
5166 pthread_exit(NULL);
5167 }
5168 #ifdef TARGET_GPROF
5169 _mcleanup();
5170 #endif
5171 gdb_exit(cpu_env, arg1);
5172 _exit(arg1);
5173 ret = 0; /* avoid warning */
5174 break;
5175 case TARGET_NR_read:
5176 if (arg3 == 0)
5177 ret = 0;
5178 else {
5179 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
5180 goto efault;
5181 ret = get_errno(read(arg1, p, arg3));
5182 unlock_user(p, arg2, ret);
5183 }
5184 break;
5185 case TARGET_NR_write:
5186 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
5187 goto efault;
5188 ret = get_errno(write(arg1, p, arg3));
5189 unlock_user(p, arg2, 0);
5190 break;
5191 case TARGET_NR_open:
5192 if (!(p = lock_user_string(arg1)))
5193 goto efault;
5194 ret = get_errno(do_open(cpu_env, p,
5195 target_to_host_bitmask(arg2, fcntl_flags_tbl),
5196 arg3));
5197 unlock_user(p, arg1, 0);
5198 break;
5199 #if defined(TARGET_NR_openat) && defined(__NR_openat)
5200 case TARGET_NR_openat:
5201 if (!(p = lock_user_string(arg2)))
5202 goto efault;
5203 ret = get_errno(sys_openat(arg1,
5204 path(p),
5205 target_to_host_bitmask(arg3, fcntl_flags_tbl),
5206 arg4));
5207 unlock_user(p, arg2, 0);
5208 break;
5209 #endif
5210 case TARGET_NR_close:
5211 ret = get_errno(close(arg1));
5212 break;
5213 case TARGET_NR_brk:
5214 ret = do_brk(arg1);
5215 break;
5216 case TARGET_NR_fork:
5217 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0, 0, 0, 0));
5218 break;
5219 #ifdef TARGET_NR_waitpid
5220 case TARGET_NR_waitpid:
5221 {
5222 int status;
5223 ret = get_errno(waitpid(arg1, &status, arg3));
5224 if (!is_error(ret) && arg2 && ret
5225 && put_user_s32(host_to_target_waitstatus(status), arg2))
5226 goto efault;
5227 }
5228 break;
5229 #endif
5230 #ifdef TARGET_NR_waitid
5231 case TARGET_NR_waitid:
5232 {
5233 siginfo_t info;
5234 info.si_pid = 0;
5235 ret = get_errno(waitid(arg1, arg2, &info, arg4));
5236 if (!is_error(ret) && arg3 && info.si_pid != 0) {
5237 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_siginfo_t), 0)))
5238 goto efault;
5239 host_to_target_siginfo(p, &info);
5240 unlock_user(p, arg3, sizeof(target_siginfo_t));
5241 }
5242 }
5243 break;
5244 #endif
5245 #ifdef TARGET_NR_creat /* not on alpha */
5246 case TARGET_NR_creat:
5247 if (!(p = lock_user_string(arg1)))
5248 goto efault;
5249 ret = get_errno(creat(p, arg2));
5250 unlock_user(p, arg1, 0);
5251 break;
5252 #endif
5253 case TARGET_NR_link:
5254 {
5255 void * p2;
5256 p = lock_user_string(arg1);
5257 p2 = lock_user_string(arg2);
5258 if (!p || !p2)
5259 ret = -TARGET_EFAULT;
5260 else
5261 ret = get_errno(link(p, p2));
5262 unlock_user(p2, arg2, 0);
5263 unlock_user(p, arg1, 0);
5264 }
5265 break;
5266 #if defined(TARGET_NR_linkat)
5267 case TARGET_NR_linkat:
5268 {
5269 void * p2 = NULL;
5270 if (!arg2 || !arg4)
5271 goto efault;
5272 p = lock_user_string(arg2);
5273 p2 = lock_user_string(arg4);
5274 if (!p || !p2)
5275 ret = -TARGET_EFAULT;
5276 else
5277 ret = get_errno(linkat(arg1, p, arg3, p2, arg5));
5278 unlock_user(p, arg2, 0);
5279 unlock_user(p2, arg4, 0);
5280 }
5281 break;
5282 #endif
5283 case TARGET_NR_unlink:
5284 if (!(p = lock_user_string(arg1)))
5285 goto efault;
5286 ret = get_errno(unlink(p));
5287 unlock_user(p, arg1, 0);
5288 break;
5289 #if defined(TARGET_NR_unlinkat)
5290 case TARGET_NR_unlinkat:
5291 if (!(p = lock_user_string(arg2)))
5292 goto efault;
5293 ret = get_errno(unlinkat(arg1, p, arg3));
5294 unlock_user(p, arg2, 0);
5295 break;
5296 #endif
5297 case TARGET_NR_execve:
5298 {
5299 char **argp, **envp;
5300 int argc, envc;
5301 abi_ulong gp;
5302 abi_ulong guest_argp;
5303 abi_ulong guest_envp;
5304 abi_ulong addr;
5305 char **q;
5306 int total_size = 0;
5307
5308 argc = 0;
5309 guest_argp = arg2;
5310 for (gp = guest_argp; gp; gp += sizeof(abi_ulong)) {
5311 if (get_user_ual(addr, gp))
5312 goto efault;
5313 if (!addr)
5314 break;
5315 argc++;
5316 }
5317 envc = 0;
5318 guest_envp = arg3;
5319 for (gp = guest_envp; gp; gp += sizeof(abi_ulong)) {
5320 if (get_user_ual(addr, gp))
5321 goto efault;
5322 if (!addr)
5323 break;
5324 envc++;
5325 }
5326
5327 argp = alloca((argc + 1) * sizeof(void *));
5328 envp = alloca((envc + 1) * sizeof(void *));
5329
5330 for (gp = guest_argp, q = argp; gp;
5331 gp += sizeof(abi_ulong), q++) {
5332 if (get_user_ual(addr, gp))
5333 goto execve_efault;
5334 if (!addr)
5335 break;
5336 if (!(*q = lock_user_string(addr)))
5337 goto execve_efault;
5338 total_size += strlen(*q) + 1;
5339 }
5340 *q = NULL;
5341
5342 for (gp = guest_envp, q = envp; gp;
5343 gp += sizeof(abi_ulong), q++) {
5344 if (get_user_ual(addr, gp))
5345 goto execve_efault;
5346 if (!addr)
5347 break;
5348 if (!(*q = lock_user_string(addr)))
5349 goto execve_efault;
5350 total_size += strlen(*q) + 1;
5351 }
5352 *q = NULL;
5353
5354 /* This case will not be caught by the host's execve() if its
5355 page size is bigger than the target's. */
5356 if (total_size > MAX_ARG_PAGES * TARGET_PAGE_SIZE) {
5357 ret = -TARGET_E2BIG;
5358 goto execve_end;
5359 }
5360 if (!(p = lock_user_string(arg1)))
5361 goto execve_efault;
5362 ret = get_errno(execve(p, argp, envp));
5363 unlock_user(p, arg1, 0);
5364
5365 goto execve_end;
5366
5367 execve_efault:
5368 ret = -TARGET_EFAULT;
5369
5370 execve_end:
5371 for (gp = guest_argp, q = argp; *q;
5372 gp += sizeof(abi_ulong), q++) {
5373 if (get_user_ual(addr, gp)
5374 || !addr)
5375 break;
5376 unlock_user(*q, addr, 0);
5377 }
5378 for (gp = guest_envp, q = envp; *q;
5379 gp += sizeof(abi_ulong), q++) {
5380 if (get_user_ual(addr, gp)
5381 || !addr)
5382 break;
5383 unlock_user(*q, addr, 0);
5384 }
5385 }
5386 break;
5387 case TARGET_NR_chdir:
5388 if (!(p = lock_user_string(arg1)))
5389 goto efault;
5390 ret = get_errno(chdir(p));
5391 unlock_user(p, arg1, 0);
5392 break;
5393 #ifdef TARGET_NR_time
5394 case TARGET_NR_time:
5395 {
5396 time_t host_time;
5397 ret = get_errno(time(&host_time));
5398 if (!is_error(ret)
5399 && arg1
5400 && put_user_sal(host_time, arg1))
5401 goto efault;
5402 }
5403 break;
5404 #endif
5405 case TARGET_NR_mknod:
5406 if (!(p = lock_user_string(arg1)))
5407 goto efault;
5408 ret = get_errno(mknod(p, arg2, arg3));
5409 unlock_user(p, arg1, 0);
5410 break;
5411 #if defined(TARGET_NR_mknodat)
5412 case TARGET_NR_mknodat:
5413 if (!(p = lock_user_string(arg2)))
5414 goto efault;
5415 ret = get_errno(mknodat(arg1, p, arg3, arg4));
5416 unlock_user(p, arg2, 0);
5417 break;
5418 #endif
5419 case TARGET_NR_chmod:
5420 if (!(p = lock_user_string(arg1)))
5421 goto efault;
5422 ret = get_errno(chmod(p, arg2));
5423 unlock_user(p, arg1, 0);
5424 break;
5425 #ifdef TARGET_NR_break
5426 case TARGET_NR_break:
5427 goto unimplemented;
5428 #endif
5429 #ifdef TARGET_NR_oldstat
5430 case TARGET_NR_oldstat:
5431 goto unimplemented;
5432 #endif
5433 case TARGET_NR_lseek:
5434 ret = get_errno(lseek(arg1, arg2, arg3));
5435 break;
5436 #if defined(TARGET_NR_getxpid) && defined(TARGET_ALPHA)
5437 /* Alpha specific */
5438 case TARGET_NR_getxpid:
5439 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = getppid();
5440 ret = get_errno(getpid());
5441 break;
5442 #endif
5443 #ifdef TARGET_NR_getpid
5444 case TARGET_NR_getpid:
5445 ret = get_errno(getpid());
5446 break;
5447 #endif
5448 case TARGET_NR_mount:
5449 {
5450 /* need to look at the data field */
5451 void *p2, *p3;
5452 p = lock_user_string(arg1);
5453 p2 = lock_user_string(arg2);
5454 p3 = lock_user_string(arg3);
5455 if (!p || !p2 || !p3)
5456 ret = -TARGET_EFAULT;
5457 else {
5458 /* FIXME - arg5 should be locked, but it isn't clear how to
5459 * do that since it's not guaranteed to be a NULL-terminated
5460 * string.
5461 */
5462 if ( ! arg5 )
5463 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, NULL));
5464 else
5465 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, g2h(arg5)));
5466 }
5467 unlock_user(p, arg1, 0);
5468 unlock_user(p2, arg2, 0);
5469 unlock_user(p3, arg3, 0);
5470 break;
5471 }
5472 #ifdef TARGET_NR_umount
5473 case TARGET_NR_umount:
5474 if (!(p = lock_user_string(arg1)))
5475 goto efault;
5476 ret = get_errno(umount(p));
5477 unlock_user(p, arg1, 0);
5478 break;
5479 #endif
5480 #ifdef TARGET_NR_stime /* not on alpha */
5481 case TARGET_NR_stime:
5482 {
5483 time_t host_time;
5484 if (get_user_sal(host_time, arg1))
5485 goto efault;
5486 ret = get_errno(stime(&host_time));
5487 }
5488 break;
5489 #endif
5490 case TARGET_NR_ptrace:
5491 goto unimplemented;
5492 #ifdef TARGET_NR_alarm /* not on alpha */
5493 case TARGET_NR_alarm:
5494 ret = alarm(arg1);
5495 break;
5496 #endif
5497 #ifdef TARGET_NR_oldfstat
5498 case TARGET_NR_oldfstat:
5499 goto unimplemented;
5500 #endif
5501 #ifdef TARGET_NR_pause /* not on alpha */
5502 case TARGET_NR_pause:
5503 ret = get_errno(pause());
5504 break;
5505 #endif
5506 #ifdef TARGET_NR_utime
5507 case TARGET_NR_utime:
5508 {
5509 struct utimbuf tbuf, *host_tbuf;
5510 struct target_utimbuf *target_tbuf;
5511 if (arg2) {
5512 if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1))
5513 goto efault;
5514 tbuf.actime = tswapal(target_tbuf->actime);
5515 tbuf.modtime = tswapal(target_tbuf->modtime);
5516 unlock_user_struct(target_tbuf, arg2, 0);
5517 host_tbuf = &tbuf;
5518 } else {
5519 host_tbuf = NULL;
5520 }
5521 if (!(p = lock_user_string(arg1)))
5522 goto efault;
5523 ret = get_errno(utime(p, host_tbuf));
5524 unlock_user(p, arg1, 0);
5525 }
5526 break;
5527 #endif
5528 case TARGET_NR_utimes:
5529 {
5530 struct timeval *tvp, tv[2];
5531 if (arg2) {
5532 if (copy_from_user_timeval(&tv[0], arg2)
5533 || copy_from_user_timeval(&tv[1],
5534 arg2 + sizeof(struct target_timeval)))
5535 goto efault;
5536 tvp = tv;
5537 } else {
5538 tvp = NULL;
5539 }
5540 if (!(p = lock_user_string(arg1)))
5541 goto efault;
5542 ret = get_errno(utimes(p, tvp));
5543 unlock_user(p, arg1, 0);
5544 }
5545 break;
5546 #if defined(TARGET_NR_futimesat)
5547 case TARGET_NR_futimesat:
5548 {
5549 struct timeval *tvp, tv[2];
5550 if (arg3) {
5551 if (copy_from_user_timeval(&tv[0], arg3)
5552 || copy_from_user_timeval(&tv[1],
5553 arg3 + sizeof(struct target_timeval)))
5554 goto efault;
5555 tvp = tv;
5556 } else {
5557 tvp = NULL;
5558 }
5559 if (!(p = lock_user_string(arg2)))
5560 goto efault;
5561 ret = get_errno(futimesat(arg1, path(p), tvp));
5562 unlock_user(p, arg2, 0);
5563 }
5564 break;
5565 #endif
5566 #ifdef TARGET_NR_stty
5567 case TARGET_NR_stty:
5568 goto unimplemented;
5569 #endif
5570 #ifdef TARGET_NR_gtty
5571 case TARGET_NR_gtty:
5572 goto unimplemented;
5573 #endif
5574 case TARGET_NR_access:
5575 if (!(p = lock_user_string(arg1)))
5576 goto efault;
5577 ret = get_errno(access(path(p), arg2));
5578 unlock_user(p, arg1, 0);
5579 break;
5580 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
5581 case TARGET_NR_faccessat:
5582 if (!(p = lock_user_string(arg2)))
5583 goto efault;
5584 ret = get_errno(faccessat(arg1, p, arg3, 0));
5585 unlock_user(p, arg2, 0);
5586 break;
5587 #endif
5588 #ifdef TARGET_NR_nice /* not on alpha */
5589 case TARGET_NR_nice:
5590 ret = get_errno(nice(arg1));
5591 break;
5592 #endif
5593 #ifdef TARGET_NR_ftime
5594 case TARGET_NR_ftime:
5595 goto unimplemented;
5596 #endif
5597 case TARGET_NR_sync:
5598 sync();
5599 ret = 0;
5600 break;
5601 case TARGET_NR_kill:
5602 ret = get_errno(kill(arg1, target_to_host_signal(arg2)));
5603 break;
5604 case TARGET_NR_rename:
5605 {
5606 void *p2;
5607 p = lock_user_string(arg1);
5608 p2 = lock_user_string(arg2);
5609 if (!p || !p2)
5610 ret = -TARGET_EFAULT;
5611 else
5612 ret = get_errno(rename(p, p2));
5613 unlock_user(p2, arg2, 0);
5614 unlock_user(p, arg1, 0);
5615 }
5616 break;
5617 #if defined(TARGET_NR_renameat)
5618 case TARGET_NR_renameat:
5619 {
5620 void *p2;
5621 p = lock_user_string(arg2);
5622 p2 = lock_user_string(arg4);
5623 if (!p || !p2)
5624 ret = -TARGET_EFAULT;
5625 else
5626 ret = get_errno(renameat(arg1, p, arg3, p2));
5627 unlock_user(p2, arg4, 0);
5628 unlock_user(p, arg2, 0);
5629 }
5630 break;
5631 #endif
5632 case TARGET_NR_mkdir:
5633 if (!(p = lock_user_string(arg1)))
5634 goto efault;
5635 ret = get_errno(mkdir(p, arg2));
5636 unlock_user(p, arg1, 0);
5637 break;
5638 #if defined(TARGET_NR_mkdirat)
5639 case TARGET_NR_mkdirat:
5640 if (!(p = lock_user_string(arg2)))
5641 goto efault;
5642 ret = get_errno(mkdirat(arg1, p, arg3));
5643 unlock_user(p, arg2, 0);
5644 break;
5645 #endif
5646 case TARGET_NR_rmdir:
5647 if (!(p = lock_user_string(arg1)))
5648 goto efault;
5649 ret = get_errno(rmdir(p));
5650 unlock_user(p, arg1, 0);
5651 break;
5652 case TARGET_NR_dup:
5653 ret = get_errno(dup(arg1));
5654 break;
5655 case TARGET_NR_pipe:
5656 ret = do_pipe(cpu_env, arg1, 0, 0);
5657 break;
5658 #ifdef TARGET_NR_pipe2
5659 case TARGET_NR_pipe2:
5660 ret = do_pipe(cpu_env, arg1,
5661 target_to_host_bitmask(arg2, fcntl_flags_tbl), 1);
5662 break;
5663 #endif
5664 case TARGET_NR_times:
5665 {
5666 struct target_tms *tmsp;
5667 struct tms tms;
5668 ret = get_errno(times(&tms));
5669 if (arg1) {
5670 tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0);
5671 if (!tmsp)
5672 goto efault;
5673 tmsp->tms_utime = tswapal(host_to_target_clock_t(tms.tms_utime));
5674 tmsp->tms_stime = tswapal(host_to_target_clock_t(tms.tms_stime));
5675 tmsp->tms_cutime = tswapal(host_to_target_clock_t(tms.tms_cutime));
5676 tmsp->tms_cstime = tswapal(host_to_target_clock_t(tms.tms_cstime));
5677 }
5678 if (!is_error(ret))
5679 ret = host_to_target_clock_t(ret);
5680 }
5681 break;
5682 #ifdef TARGET_NR_prof
5683 case TARGET_NR_prof:
5684 goto unimplemented;
5685 #endif
5686 #ifdef TARGET_NR_signal
5687 case TARGET_NR_signal:
5688 goto unimplemented;
5689 #endif
5690 case TARGET_NR_acct:
5691 if (arg1 == 0) {
5692 ret = get_errno(acct(NULL));
5693 } else {
5694 if (!(p = lock_user_string(arg1)))
5695 goto efault;
5696 ret = get_errno(acct(path(p)));
5697 unlock_user(p, arg1, 0);
5698 }
5699 break;
5700 #ifdef TARGET_NR_umount2 /* not on alpha */
5701 case TARGET_NR_umount2:
5702 if (!(p = lock_user_string(arg1)))
5703 goto efault;
5704 ret = get_errno(umount2(p, arg2));
5705 unlock_user(p, arg1, 0);
5706 break;
5707 #endif
5708 #ifdef TARGET_NR_lock
5709 case TARGET_NR_lock:
5710 goto unimplemented;
5711 #endif
5712 case TARGET_NR_ioctl:
5713 ret = do_ioctl(arg1, arg2, arg3);
5714 break;
5715 case TARGET_NR_fcntl:
5716 ret = do_fcntl(arg1, arg2, arg3);
5717 break;
5718 #ifdef TARGET_NR_mpx
5719 case TARGET_NR_mpx:
5720 goto unimplemented;
5721 #endif
5722 case TARGET_NR_setpgid:
5723 ret = get_errno(setpgid(arg1, arg2));
5724 break;
5725 #ifdef TARGET_NR_ulimit
5726 case TARGET_NR_ulimit:
5727 goto unimplemented;
5728 #endif
5729 #ifdef TARGET_NR_oldolduname
5730 case TARGET_NR_oldolduname:
5731 goto unimplemented;
5732 #endif
5733 case TARGET_NR_umask:
5734 ret = get_errno(umask(arg1));
5735 break;
5736 case TARGET_NR_chroot:
5737 if (!(p = lock_user_string(arg1)))
5738 goto efault;
5739 ret = get_errno(chroot(p));
5740 unlock_user(p, arg1, 0);
5741 break;
5742 case TARGET_NR_ustat:
5743 goto unimplemented;
5744 case TARGET_NR_dup2:
5745 ret = get_errno(dup2(arg1, arg2));
5746 break;
5747 #if defined(CONFIG_DUP3) && defined(TARGET_NR_dup3)
5748 case TARGET_NR_dup3:
5749 ret = get_errno(dup3(arg1, arg2, arg3));
5750 break;
5751 #endif
5752 #ifdef TARGET_NR_getppid /* not on alpha */
5753 case TARGET_NR_getppid:
5754 ret = get_errno(getppid());
5755 break;
5756 #endif
5757 case TARGET_NR_getpgrp:
5758 ret = get_errno(getpgrp());
5759 break;
5760 case TARGET_NR_setsid:
5761 ret = get_errno(setsid());
5762 break;
5763 #ifdef TARGET_NR_sigaction
5764 case TARGET_NR_sigaction:
5765 {
5766 #if defined(TARGET_ALPHA)
5767 struct target_sigaction act, oact, *pact = 0;
5768 struct target_old_sigaction *old_act;
5769 if (arg2) {
5770 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
5771 goto efault;
5772 act._sa_handler = old_act->_sa_handler;
5773 target_siginitset(&act.sa_mask, old_act->sa_mask);
5774 act.sa_flags = old_act->sa_flags;
5775 act.sa_restorer = 0;
5776 unlock_user_struct(old_act, arg2, 0);
5777 pact = &act;
5778 }
5779 ret = get_errno(do_sigaction(arg1, pact, &oact));
5780 if (!is_error(ret) && arg3) {
5781 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
5782 goto efault;
5783 old_act->_sa_handler = oact._sa_handler;
5784 old_act->sa_mask = oact.sa_mask.sig[0];
5785 old_act->sa_flags = oact.sa_flags;
5786 unlock_user_struct(old_act, arg3, 1);
5787 }
5788 #elif defined(TARGET_MIPS)
5789 struct target_sigaction act, oact, *pact, *old_act;
5790
5791 if (arg2) {
5792 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
5793 goto efault;
5794 act._sa_handler = old_act->_sa_handler;
5795 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
5796 act.sa_flags = old_act->sa_flags;
5797 unlock_user_struct(old_act, arg2, 0);
5798 pact = &act;
5799 } else {
5800 pact = NULL;
5801 }
5802
5803 ret = get_errno(do_sigaction(arg1, pact, &oact));
5804
5805 if (!is_error(ret) && arg3) {
5806 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
5807 goto efault;
5808 old_act->_sa_handler = oact._sa_handler;
5809 old_act->sa_flags = oact.sa_flags;
5810 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
5811 old_act->sa_mask.sig[1] = 0;
5812 old_act->sa_mask.sig[2] = 0;
5813 old_act->sa_mask.sig[3] = 0;
5814 unlock_user_struct(old_act, arg3, 1);
5815 }
5816 #else
5817 struct target_old_sigaction *old_act;
5818 struct target_sigaction act, oact, *pact;
5819 if (arg2) {
5820 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
5821 goto efault;
5822 act._sa_handler = old_act->_sa_handler;
5823 target_siginitset(&act.sa_mask, old_act->sa_mask);
5824 act.sa_flags = old_act->sa_flags;
5825 act.sa_restorer = old_act->sa_restorer;
5826 unlock_user_struct(old_act, arg2, 0);
5827 pact = &act;
5828 } else {
5829 pact = NULL;
5830 }
5831 ret = get_errno(do_sigaction(arg1, pact, &oact));
5832 if (!is_error(ret) && arg3) {
5833 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
5834 goto efault;
5835 old_act->_sa_handler = oact._sa_handler;
5836 old_act->sa_mask = oact.sa_mask.sig[0];
5837 old_act->sa_flags = oact.sa_flags;
5838 old_act->sa_restorer = oact.sa_restorer;
5839 unlock_user_struct(old_act, arg3, 1);
5840 }
5841 #endif
5842 }
5843 break;
5844 #endif
5845 case TARGET_NR_rt_sigaction:
5846 {
5847 #if defined(TARGET_ALPHA)
5848 struct target_sigaction act, oact, *pact = 0;
5849 struct target_rt_sigaction *rt_act;
5850 /* ??? arg4 == sizeof(sigset_t). */
5851 if (arg2) {
5852 if (!lock_user_struct(VERIFY_READ, rt_act, arg2, 1))
5853 goto efault;
5854 act._sa_handler = rt_act->_sa_handler;
5855 act.sa_mask = rt_act->sa_mask;
5856 act.sa_flags = rt_act->sa_flags;
5857 act.sa_restorer = arg5;
5858 unlock_user_struct(rt_act, arg2, 0);
5859 pact = &act;
5860 }
5861 ret = get_errno(do_sigaction(arg1, pact, &oact));
5862 if (!is_error(ret) && arg3) {
5863 if (!lock_user_struct(VERIFY_WRITE, rt_act, arg3, 0))
5864 goto efault;
5865 rt_act->_sa_handler = oact._sa_handler;
5866 rt_act->sa_mask = oact.sa_mask;
5867 rt_act->sa_flags = oact.sa_flags;
5868 unlock_user_struct(rt_act, arg3, 1);
5869 }
5870 #else
5871 struct target_sigaction *act;
5872 struct target_sigaction *oact;
5873
5874 if (arg2) {
5875 if (!lock_user_struct(VERIFY_READ, act, arg2, 1))
5876 goto efault;
5877 } else
5878 act = NULL;
5879 if (arg3) {
5880 if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) {
5881 ret = -TARGET_EFAULT;
5882 goto rt_sigaction_fail;
5883 }
5884 } else
5885 oact = NULL;
5886 ret = get_errno(do_sigaction(arg1, act, oact));
5887 rt_sigaction_fail:
5888 if (act)
5889 unlock_user_struct(act, arg2, 0);
5890 if (oact)
5891 unlock_user_struct(oact, arg3, 1);
5892 #endif
5893 }
5894 break;
5895 #ifdef TARGET_NR_sgetmask /* not on alpha */
5896 case TARGET_NR_sgetmask:
5897 {
5898 sigset_t cur_set;
5899 abi_ulong target_set;
5900 sigprocmask(0, NULL, &cur_set);
5901 host_to_target_old_sigset(&target_set, &cur_set);
5902 ret = target_set;
5903 }
5904 break;
5905 #endif
5906 #ifdef TARGET_NR_ssetmask /* not on alpha */
5907 case TARGET_NR_ssetmask:
5908 {
5909 sigset_t set, oset, cur_set;
5910 abi_ulong target_set = arg1;
5911 sigprocmask(0, NULL, &cur_set);
5912 target_to_host_old_sigset(&set, &target_set);
5913 sigorset(&set, &set, &cur_set);
5914 sigprocmask(SIG_SETMASK, &set, &oset);
5915 host_to_target_old_sigset(&target_set, &oset);
5916 ret = target_set;
5917 }
5918 break;
5919 #endif
5920 #ifdef TARGET_NR_sigprocmask
5921 case TARGET_NR_sigprocmask:
5922 {
5923 #if defined(TARGET_ALPHA)
5924 sigset_t set, oldset;
5925 abi_ulong mask;
5926 int how;
5927
5928 switch (arg1) {
5929 case TARGET_SIG_BLOCK:
5930 how = SIG_BLOCK;
5931 break;
5932 case TARGET_SIG_UNBLOCK:
5933 how = SIG_UNBLOCK;
5934 break;
5935 case TARGET_SIG_SETMASK:
5936 how = SIG_SETMASK;
5937 break;
5938 default:
5939 ret = -TARGET_EINVAL;
5940 goto fail;
5941 }
5942 mask = arg2;
5943 target_to_host_old_sigset(&set, &mask);
5944
5945 ret = get_errno(sigprocmask(how, &set, &oldset));
5946 if (!is_error(ret)) {
5947 host_to_target_old_sigset(&mask, &oldset);
5948 ret = mask;
5949 ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0; /* force no error */
5950 }
5951 #else
5952 sigset_t set, oldset, *set_ptr;
5953 int how;
5954
5955 if (arg2) {
5956 switch (arg1) {
5957 case TARGET_SIG_BLOCK:
5958 how = SIG_BLOCK;
5959 break;
5960 case TARGET_SIG_UNBLOCK:
5961 how = SIG_UNBLOCK;
5962 break;
5963 case TARGET_SIG_SETMASK:
5964 how = SIG_SETMASK;
5965 break;
5966 default:
5967 ret = -TARGET_EINVAL;
5968 goto fail;
5969 }
5970 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
5971 goto efault;
5972 target_to_host_old_sigset(&set, p);
5973 unlock_user(p, arg2, 0);
5974 set_ptr = &set;
5975 } else {
5976 how = 0;
5977 set_ptr = NULL;
5978 }
5979 ret = get_errno(sigprocmask(how, set_ptr, &oldset));
5980 if (!is_error(ret) && arg3) {
5981 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
5982 goto efault;
5983 host_to_target_old_sigset(p, &oldset);
5984 unlock_user(p, arg3, sizeof(target_sigset_t));
5985 }
5986 #endif
5987 }
5988 break;
5989 #endif
5990 case TARGET_NR_rt_sigprocmask:
5991 {
5992 int how = arg1;
5993 sigset_t set, oldset, *set_ptr;
5994
5995 if (arg2) {
5996 switch(how) {
5997 case TARGET_SIG_BLOCK:
5998 how = SIG_BLOCK;
5999 break;
6000 case TARGET_SIG_UNBLOCK:
6001 how = SIG_UNBLOCK;
6002 break;
6003 case TARGET_SIG_SETMASK:
6004 how = SIG_SETMASK;
6005 break;
6006 default:
6007 ret = -TARGET_EINVAL;
6008 goto fail;
6009 }
6010 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
6011 goto efault;
6012 target_to_host_sigset(&set, p);
6013 unlock_user(p, arg2, 0);
6014 set_ptr = &set;
6015 } else {
6016 how = 0;
6017 set_ptr = NULL;
6018 }
6019 ret = get_errno(sigprocmask(how, set_ptr, &oldset));
6020 if (!is_error(ret) && arg3) {
6021 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
6022 goto efault;
6023 host_to_target_sigset(p, &oldset);
6024 unlock_user(p, arg3, sizeof(target_sigset_t));
6025 }
6026 }
6027 break;
6028 #ifdef TARGET_NR_sigpending
6029 case TARGET_NR_sigpending:
6030 {
6031 sigset_t set;
6032 ret = get_errno(sigpending(&set));
6033 if (!is_error(ret)) {
6034 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
6035 goto efault;
6036 host_to_target_old_sigset(p, &set);
6037 unlock_user(p, arg1, sizeof(target_sigset_t));
6038 }
6039 }
6040 break;
6041 #endif
6042 case TARGET_NR_rt_sigpending:
6043 {
6044 sigset_t set;
6045 ret = get_errno(sigpending(&set));
6046 if (!is_error(ret)) {
6047 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
6048 goto efault;
6049 host_to_target_sigset(p, &set);
6050 unlock_user(p, arg1, sizeof(target_sigset_t));
6051 }
6052 }
6053 break;
6054 #ifdef TARGET_NR_sigsuspend
6055 case TARGET_NR_sigsuspend:
6056 {
6057 sigset_t set;
6058 #if defined(TARGET_ALPHA)
6059 abi_ulong mask = arg1;
6060 target_to_host_old_sigset(&set, &mask);
6061 #else
6062 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
6063 goto efault;
6064 target_to_host_old_sigset(&set, p);
6065 unlock_user(p, arg1, 0);
6066 #endif
6067 ret = get_errno(sigsuspend(&set));
6068 }
6069 break;
6070 #endif
6071 case TARGET_NR_rt_sigsuspend:
6072 {
6073 sigset_t set;
6074 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
6075 goto efault;
6076 target_to_host_sigset(&set, p);
6077 unlock_user(p, arg1, 0);
6078 ret = get_errno(sigsuspend(&set));
6079 }
6080 break;
6081 case TARGET_NR_rt_sigtimedwait:
6082 {
6083 sigset_t set;
6084 struct timespec uts, *puts;
6085 siginfo_t uinfo;
6086
6087 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
6088 goto efault;
6089 target_to_host_sigset(&set, p);
6090 unlock_user(p, arg1, 0);
6091 if (arg3) {
6092 puts = &uts;
6093 target_to_host_timespec(puts, arg3);
6094 } else {
6095 puts = NULL;
6096 }
6097 ret = get_errno(sigtimedwait(&set, &uinfo, puts));
6098 if (!is_error(ret) && arg2) {
6099 if (!(p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t), 0)))
6100 goto efault;
6101 host_to_target_siginfo(p, &uinfo);
6102 unlock_user(p, arg2, sizeof(target_siginfo_t));
6103 }
6104 }
6105 break;
6106 case TARGET_NR_rt_sigqueueinfo:
6107 {
6108 siginfo_t uinfo;
6109 if (!(p = lock_user(VERIFY_READ, arg3, sizeof(target_sigset_t), 1)))
6110 goto efault;
6111 target_to_host_siginfo(&uinfo, p);
6112 unlock_user(p, arg1, 0);
6113 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
6114 }
6115 break;
6116 #ifdef TARGET_NR_sigreturn
6117 case TARGET_NR_sigreturn:
6118 /* NOTE: ret is eax, so not transcoding must be done */
6119 ret = do_sigreturn(cpu_env);
6120 break;
6121 #endif
6122 case TARGET_NR_rt_sigreturn:
6123 /* NOTE: ret is eax, so not transcoding must be done */
6124 ret = do_rt_sigreturn(cpu_env);
6125 break;
6126 case TARGET_NR_sethostname:
6127 if (!(p = lock_user_string(arg1)))
6128 goto efault;
6129 ret = get_errno(sethostname(p, arg2));
6130 unlock_user(p, arg1, 0);
6131 break;
6132 case TARGET_NR_setrlimit:
6133 {
6134 int resource = target_to_host_resource(arg1);
6135 struct target_rlimit *target_rlim;
6136 struct rlimit rlim;
6137 if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1))
6138 goto efault;
6139 rlim.rlim_cur = target_to_host_rlim(target_rlim->rlim_cur);
6140 rlim.rlim_max = target_to_host_rlim(target_rlim->rlim_max);
6141 unlock_user_struct(target_rlim, arg2, 0);
6142 ret = get_errno(setrlimit(resource, &rlim));
6143 }
6144 break;
6145 case TARGET_NR_getrlimit:
6146 {
6147 int resource = target_to_host_resource(arg1);
6148 struct target_rlimit *target_rlim;
6149 struct rlimit rlim;
6150
6151 ret = get_errno(getrlimit(resource, &rlim));
6152 if (!is_error(ret)) {
6153 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
6154 goto efault;
6155 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
6156 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
6157 unlock_user_struct(target_rlim, arg2, 1);
6158 }
6159 }
6160 break;
6161 case TARGET_NR_getrusage:
6162 {
6163 struct rusage rusage;
6164 ret = get_errno(getrusage(arg1, &rusage));
6165 if (!is_error(ret)) {
6166 host_to_target_rusage(arg2, &rusage);
6167 }
6168 }
6169 break;
6170 case TARGET_NR_gettimeofday:
6171 {
6172 struct timeval tv;
6173 ret = get_errno(gettimeofday(&tv, NULL));
6174 if (!is_error(ret)) {
6175 if (copy_to_user_timeval(arg1, &tv))
6176 goto efault;
6177 }
6178 }
6179 break;
6180 case TARGET_NR_settimeofday:
6181 {
6182 struct timeval tv;
6183 if (copy_from_user_timeval(&tv, arg1))
6184 goto efault;
6185 ret = get_errno(settimeofday(&tv, NULL));
6186 }
6187 break;
6188 #if defined(TARGET_NR_select)
6189 case TARGET_NR_select:
6190 #if defined(TARGET_S390X) || defined(TARGET_ALPHA)
6191 ret = do_select(arg1, arg2, arg3, arg4, arg5);
6192 #else
6193 {
6194 struct target_sel_arg_struct *sel;
6195 abi_ulong inp, outp, exp, tvp;
6196 long nsel;
6197
6198 if (!lock_user_struct(VERIFY_READ, sel, arg1, 1))
6199 goto efault;
6200 nsel = tswapal(sel->n);
6201 inp = tswapal(sel->inp);
6202 outp = tswapal(sel->outp);
6203 exp = tswapal(sel->exp);
6204 tvp = tswapal(sel->tvp);
6205 unlock_user_struct(sel, arg1, 0);
6206 ret = do_select(nsel, inp, outp, exp, tvp);
6207 }
6208 #endif
6209 break;
6210 #endif
6211 #ifdef TARGET_NR_pselect6
6212 case TARGET_NR_pselect6:
6213 {
6214 abi_long rfd_addr, wfd_addr, efd_addr, n, ts_addr;
6215 fd_set rfds, wfds, efds;
6216 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
6217 struct timespec ts, *ts_ptr;
6218
6219 /*
6220 * The 6th arg is actually two args smashed together,
6221 * so we cannot use the C library.
6222 */
6223 sigset_t set;
6224 struct {
6225 sigset_t *set;
6226 size_t size;
6227 } sig, *sig_ptr;
6228
6229 abi_ulong arg_sigset, arg_sigsize, *arg7;
6230 target_sigset_t *target_sigset;
6231
6232 n = arg1;
6233 rfd_addr = arg2;
6234 wfd_addr = arg3;
6235 efd_addr = arg4;
6236 ts_addr = arg5;
6237
6238 ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n);
6239 if (ret) {
6240 goto fail;
6241 }
6242 ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n);
6243 if (ret) {
6244 goto fail;
6245 }
6246 ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n);
6247 if (ret) {
6248 goto fail;
6249 }
6250
6251 /*
6252 * This takes a timespec, and not a timeval, so we cannot
6253 * use the do_select() helper ...
6254 */
6255 if (ts_addr) {
6256 if (target_to_host_timespec(&ts, ts_addr)) {
6257 goto efault;
6258 }
6259 ts_ptr = &ts;
6260 } else {
6261 ts_ptr = NULL;
6262 }
6263
6264 /* Extract the two packed args for the sigset */
6265 if (arg6) {
6266 sig_ptr = &sig;
6267 sig.size = _NSIG / 8;
6268
6269 arg7 = lock_user(VERIFY_READ, arg6, sizeof(*arg7) * 2, 1);
6270 if (!arg7) {
6271 goto efault;
6272 }
6273 arg_sigset = tswapal(arg7[0]);
6274 arg_sigsize = tswapal(arg7[1]);
6275 unlock_user(arg7, arg6, 0);
6276
6277 if (arg_sigset) {
6278 sig.set = &set;
6279 if (arg_sigsize != sizeof(*target_sigset)) {
6280 /* Like the kernel, we enforce correct size sigsets */
6281 ret = -TARGET_EINVAL;
6282 goto fail;
6283 }
6284 target_sigset = lock_user(VERIFY_READ, arg_sigset,
6285 sizeof(*target_sigset), 1);
6286 if (!target_sigset) {
6287 goto efault;
6288 }
6289 target_to_host_sigset(&set, target_sigset);
6290 unlock_user(target_sigset, arg_sigset, 0);
6291 } else {
6292 sig.set = NULL;
6293 }
6294 } else {
6295 sig_ptr = NULL;
6296 }
6297
6298 ret = get_errno(sys_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr,
6299 ts_ptr, sig_ptr));
6300
6301 if (!is_error(ret)) {
6302 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
6303 goto efault;
6304 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
6305 goto efault;
6306 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
6307 goto efault;
6308
6309 if (ts_addr && host_to_target_timespec(ts_addr, &ts))
6310 goto efault;
6311 }
6312 }
6313 break;
6314 #endif
6315 case TARGET_NR_symlink:
6316 {
6317 void *p2;
6318 p = lock_user_string(arg1);
6319 p2 = lock_user_string(arg2);
6320 if (!p || !p2)
6321 ret = -TARGET_EFAULT;
6322 else
6323 ret = get_errno(symlink(p, p2));
6324 unlock_user(p2, arg2, 0);
6325 unlock_user(p, arg1, 0);
6326 }
6327 break;
6328 #if defined(TARGET_NR_symlinkat)
6329 case TARGET_NR_symlinkat:
6330 {
6331 void *p2;
6332 p = lock_user_string(arg1);
6333 p2 = lock_user_string(arg3);
6334 if (!p || !p2)
6335 ret = -TARGET_EFAULT;
6336 else
6337 ret = get_errno(symlinkat(p, arg2, p2));
6338 unlock_user(p2, arg3, 0);
6339 unlock_user(p, arg1, 0);
6340 }
6341 break;
6342 #endif
6343 #ifdef TARGET_NR_oldlstat
6344 case TARGET_NR_oldlstat:
6345 goto unimplemented;
6346 #endif
6347 case TARGET_NR_readlink:
6348 {
6349 void *p2;
6350 p = lock_user_string(arg1);
6351 p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0);
6352 if (!p || !p2) {
6353 ret = -TARGET_EFAULT;
6354 } else if (is_proc_myself((const char *)p, "exe")) {
6355 char real[PATH_MAX], *temp;
6356 temp = realpath(exec_path, real);
6357 ret = temp == NULL ? get_errno(-1) : strlen(real) ;
6358 snprintf((char *)p2, arg3, "%s", real);
6359 } else {
6360 ret = get_errno(readlink(path(p), p2, arg3));
6361 }
6362 unlock_user(p2, arg2, ret);
6363 unlock_user(p, arg1, 0);
6364 }
6365 break;
6366 #if defined(TARGET_NR_readlinkat)
6367 case TARGET_NR_readlinkat:
6368 {
6369 void *p2;
6370 p = lock_user_string(arg2);
6371 p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0);
6372 if (!p || !p2) {
6373 ret = -TARGET_EFAULT;
6374 } else if (is_proc_myself((const char *)p, "exe")) {
6375 char real[PATH_MAX], *temp;
6376 temp = realpath(exec_path, real);
6377 ret = temp == NULL ? get_errno(-1) : strlen(real) ;
6378 snprintf((char *)p2, arg4, "%s", real);
6379 } else {
6380 ret = get_errno(readlinkat(arg1, path(p), p2, arg4));
6381 }
6382 unlock_user(p2, arg3, ret);
6383 unlock_user(p, arg2, 0);
6384 }
6385 break;
6386 #endif
6387 #ifdef TARGET_NR_uselib
6388 case TARGET_NR_uselib:
6389 goto unimplemented;
6390 #endif
6391 #ifdef TARGET_NR_swapon
6392 case TARGET_NR_swapon:
6393 if (!(p = lock_user_string(arg1)))
6394 goto efault;
6395 ret = get_errno(swapon(p, arg2));
6396 unlock_user(p, arg1, 0);
6397 break;
6398 #endif
6399 case TARGET_NR_reboot:
6400 if (arg3 == LINUX_REBOOT_CMD_RESTART2) {
6401 /* arg4 must be ignored in all other cases */
6402 p = lock_user_string(arg4);
6403 if (!p) {
6404 goto efault;
6405 }
6406 ret = get_errno(reboot(arg1, arg2, arg3, p));
6407 unlock_user(p, arg4, 0);
6408 } else {
6409 ret = get_errno(reboot(arg1, arg2, arg3, NULL));
6410 }
6411 break;
6412 #ifdef TARGET_NR_readdir
6413 case TARGET_NR_readdir:
6414 goto unimplemented;
6415 #endif
6416 #ifdef TARGET_NR_mmap
6417 case TARGET_NR_mmap:
6418 #if (defined(TARGET_I386) && defined(TARGET_ABI32)) || \
6419 (defined(TARGET_ARM) && defined(TARGET_ABI32)) || \
6420 defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE) \
6421 || defined(TARGET_S390X)
6422 {
6423 abi_ulong *v;
6424 abi_ulong v1, v2, v3, v4, v5, v6;
6425 if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1)))
6426 goto efault;
6427 v1 = tswapal(v[0]);
6428 v2 = tswapal(v[1]);
6429 v3 = tswapal(v[2]);
6430 v4 = tswapal(v[3]);
6431 v5 = tswapal(v[4]);
6432 v6 = tswapal(v[5]);
6433 unlock_user(v, arg1, 0);
6434 ret = get_errno(target_mmap(v1, v2, v3,
6435 target_to_host_bitmask(v4, mmap_flags_tbl),
6436 v5, v6));
6437 }
6438 #else
6439 ret = get_errno(target_mmap(arg1, arg2, arg3,
6440 target_to_host_bitmask(arg4, mmap_flags_tbl),
6441 arg5,
6442 arg6));
6443 #endif
6444 break;
6445 #endif
6446 #ifdef TARGET_NR_mmap2
6447 case TARGET_NR_mmap2:
6448 #ifndef MMAP_SHIFT
6449 #define MMAP_SHIFT 12
6450 #endif
6451 ret = get_errno(target_mmap(arg1, arg2, arg3,
6452 target_to_host_bitmask(arg4, mmap_flags_tbl),
6453 arg5,
6454 arg6 << MMAP_SHIFT));
6455 break;
6456 #endif
6457 case TARGET_NR_munmap:
6458 ret = get_errno(target_munmap(arg1, arg2));
6459 break;
6460 case TARGET_NR_mprotect:
6461 {
6462 TaskState *ts = ((CPUArchState *)cpu_env)->opaque;
6463 /* Special hack to detect libc making the stack executable. */
6464 if ((arg3 & PROT_GROWSDOWN)
6465 && arg1 >= ts->info->stack_limit
6466 && arg1 <= ts->info->start_stack) {
6467 arg3 &= ~PROT_GROWSDOWN;
6468 arg2 = arg2 + arg1 - ts->info->stack_limit;
6469 arg1 = ts->info->stack_limit;
6470 }
6471 }
6472 ret = get_errno(target_mprotect(arg1, arg2, arg3));
6473 break;
6474 #ifdef TARGET_NR_mremap
6475 case TARGET_NR_mremap:
6476 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
6477 break;
6478 #endif
6479 /* ??? msync/mlock/munlock are broken for softmmu. */
6480 #ifdef TARGET_NR_msync
6481 case TARGET_NR_msync:
6482 ret = get_errno(msync(g2h(arg1), arg2, arg3));
6483 break;
6484 #endif
6485 #ifdef TARGET_NR_mlock
6486 case TARGET_NR_mlock:
6487 ret = get_errno(mlock(g2h(arg1), arg2));
6488 break;
6489 #endif
6490 #ifdef TARGET_NR_munlock
6491 case TARGET_NR_munlock:
6492 ret = get_errno(munlock(g2h(arg1), arg2));
6493 break;
6494 #endif
6495 #ifdef TARGET_NR_mlockall
6496 case TARGET_NR_mlockall:
6497 ret = get_errno(mlockall(arg1));
6498 break;
6499 #endif
6500 #ifdef TARGET_NR_munlockall
6501 case TARGET_NR_munlockall:
6502 ret = get_errno(munlockall());
6503 break;
6504 #endif
6505 case TARGET_NR_truncate:
6506 if (!(p = lock_user_string(arg1)))
6507 goto efault;
6508 ret = get_errno(truncate(p, arg2));
6509 unlock_user(p, arg1, 0);
6510 break;
6511 case TARGET_NR_ftruncate:
6512 ret = get_errno(ftruncate(arg1, arg2));
6513 break;
6514 case TARGET_NR_fchmod:
6515 ret = get_errno(fchmod(arg1, arg2));
6516 break;
6517 #if defined(TARGET_NR_fchmodat)
6518 case TARGET_NR_fchmodat:
6519 if (!(p = lock_user_string(arg2)))
6520 goto efault;
6521 ret = get_errno(fchmodat(arg1, p, arg3, 0));
6522 unlock_user(p, arg2, 0);
6523 break;
6524 #endif
6525 case TARGET_NR_getpriority:
6526 /* Note that negative values are valid for getpriority, so we must
6527 differentiate based on errno settings. */
6528 errno = 0;
6529 ret = getpriority(arg1, arg2);
6530 if (ret == -1 && errno != 0) {
6531 ret = -host_to_target_errno(errno);
6532 break;
6533 }
6534 #ifdef TARGET_ALPHA
6535 /* Return value is the unbiased priority. Signal no error. */
6536 ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0;
6537 #else
6538 /* Return value is a biased priority to avoid negative numbers. */
6539 ret = 20 - ret;
6540 #endif
6541 break;
6542 case TARGET_NR_setpriority:
6543 ret = get_errno(setpriority(arg1, arg2, arg3));
6544 break;
6545 #ifdef TARGET_NR_profil
6546 case TARGET_NR_profil:
6547 goto unimplemented;
6548 #endif
6549 case TARGET_NR_statfs:
6550 if (!(p = lock_user_string(arg1)))
6551 goto efault;
6552 ret = get_errno(statfs(path(p), &stfs));
6553 unlock_user(p, arg1, 0);
6554 convert_statfs:
6555 if (!is_error(ret)) {
6556 struct target_statfs *target_stfs;
6557
6558 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0))
6559 goto efault;
6560 __put_user(stfs.f_type, &target_stfs->f_type);
6561 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
6562 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
6563 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
6564 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
6565 __put_user(stfs.f_files, &target_stfs->f_files);
6566 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
6567 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
6568 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
6569 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
6570 __put_user(stfs.f_frsize, &target_stfs->f_frsize);
6571 memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare));
6572 unlock_user_struct(target_stfs, arg2, 1);
6573 }
6574 break;
6575 case TARGET_NR_fstatfs:
6576 ret = get_errno(fstatfs(arg1, &stfs));
6577 goto convert_statfs;
6578 #ifdef TARGET_NR_statfs64
6579 case TARGET_NR_statfs64:
6580 if (!(p = lock_user_string(arg1)))
6581 goto efault;
6582 ret = get_errno(statfs(path(p), &stfs));
6583 unlock_user(p, arg1, 0);
6584 convert_statfs64:
6585 if (!is_error(ret)) {
6586 struct target_statfs64 *target_stfs;
6587
6588 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0))
6589 goto efault;
6590 __put_user(stfs.f_type, &target_stfs->f_type);
6591 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
6592 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
6593 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
6594 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
6595 __put_user(stfs.f_files, &target_stfs->f_files);
6596 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
6597 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
6598 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
6599 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
6600 __put_user(stfs.f_frsize, &target_stfs->f_frsize);
6601 memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare));
6602 unlock_user_struct(target_stfs, arg3, 1);
6603 }
6604 break;
6605 case TARGET_NR_fstatfs64:
6606 ret = get_errno(fstatfs(arg1, &stfs));
6607 goto convert_statfs64;
6608 #endif
6609 #ifdef TARGET_NR_ioperm
6610 case TARGET_NR_ioperm:
6611 goto unimplemented;
6612 #endif
6613 #ifdef TARGET_NR_socketcall
6614 case TARGET_NR_socketcall:
6615 ret = do_socketcall(arg1, arg2);
6616 break;
6617 #endif
6618 #ifdef TARGET_NR_accept
6619 case TARGET_NR_accept:
6620 ret = do_accept4(arg1, arg2, arg3, 0);
6621 break;
6622 #endif
6623 #ifdef TARGET_NR_accept4
6624 case TARGET_NR_accept4:
6625 #ifdef CONFIG_ACCEPT4
6626 ret = do_accept4(arg1, arg2, arg3, arg4);
6627 #else
6628 goto unimplemented;
6629 #endif
6630 break;
6631 #endif
6632 #ifdef TARGET_NR_bind
6633 case TARGET_NR_bind:
6634 ret = do_bind(arg1, arg2, arg3);
6635 break;
6636 #endif
6637 #ifdef TARGET_NR_connect
6638 case TARGET_NR_connect:
6639 ret = do_connect(arg1, arg2, arg3);
6640 break;
6641 #endif
6642 #ifdef TARGET_NR_getpeername
6643 case TARGET_NR_getpeername:
6644 ret = do_getpeername(arg1, arg2, arg3);
6645 break;
6646 #endif
6647 #ifdef TARGET_NR_getsockname
6648 case TARGET_NR_getsockname:
6649 ret = do_getsockname(arg1, arg2, arg3);
6650 break;
6651 #endif
6652 #ifdef TARGET_NR_getsockopt
6653 case TARGET_NR_getsockopt:
6654 ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5);
6655 break;
6656 #endif
6657 #ifdef TARGET_NR_listen
6658 case TARGET_NR_listen:
6659 ret = get_errno(listen(arg1, arg2));
6660 break;
6661 #endif
6662 #ifdef TARGET_NR_recv
6663 case TARGET_NR_recv:
6664 ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0);
6665 break;
6666 #endif
6667 #ifdef TARGET_NR_recvfrom
6668 case TARGET_NR_recvfrom:
6669 ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6);
6670 break;
6671 #endif
6672 #ifdef TARGET_NR_recvmsg
6673 case TARGET_NR_recvmsg:
6674 ret = do_sendrecvmsg(arg1, arg2, arg3, 0);
6675 break;
6676 #endif
6677 #ifdef TARGET_NR_send
6678 case TARGET_NR_send:
6679 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0);
6680 break;
6681 #endif
6682 #ifdef TARGET_NR_sendmsg
6683 case TARGET_NR_sendmsg:
6684 ret = do_sendrecvmsg(arg1, arg2, arg3, 1);
6685 break;
6686 #endif
6687 #ifdef TARGET_NR_sendto
6688 case TARGET_NR_sendto:
6689 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
6690 break;
6691 #endif
6692 #ifdef TARGET_NR_shutdown
6693 case TARGET_NR_shutdown:
6694 ret = get_errno(shutdown(arg1, arg2));
6695 break;
6696 #endif
6697 #ifdef TARGET_NR_socket
6698 case TARGET_NR_socket:
6699 ret = do_socket(arg1, arg2, arg3);
6700 break;
6701 #endif
6702 #ifdef TARGET_NR_socketpair
6703 case TARGET_NR_socketpair:
6704 ret = do_socketpair(arg1, arg2, arg3, arg4);
6705 break;
6706 #endif
6707 #ifdef TARGET_NR_setsockopt
6708 case TARGET_NR_setsockopt:
6709 ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
6710 break;
6711 #endif
6712
6713 case TARGET_NR_syslog:
6714 if (!(p = lock_user_string(arg2)))
6715 goto efault;
6716 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));
6717 unlock_user(p, arg2, 0);
6718 break;
6719
6720 case TARGET_NR_setitimer:
6721 {
6722 struct itimerval value, ovalue, *pvalue;
6723
6724 if (arg2) {
6725 pvalue = &value;
6726 if (copy_from_user_timeval(&pvalue->it_interval, arg2)
6727 || copy_from_user_timeval(&pvalue->it_value,
6728 arg2 + sizeof(struct target_timeval)))
6729 goto efault;
6730 } else {
6731 pvalue = NULL;
6732 }
6733 ret = get_errno(setitimer(arg1, pvalue, &ovalue));
6734 if (!is_error(ret) && arg3) {
6735 if (copy_to_user_timeval(arg3,
6736 &ovalue.it_interval)
6737 || copy_to_user_timeval(arg3 + sizeof(struct target_timeval),
6738 &ovalue.it_value))
6739 goto efault;
6740 }
6741 }
6742 break;
6743 case TARGET_NR_getitimer:
6744 {
6745 struct itimerval value;
6746
6747 ret = get_errno(getitimer(arg1, &value));
6748 if (!is_error(ret) && arg2) {
6749 if (copy_to_user_timeval(arg2,
6750 &value.it_interval)
6751 || copy_to_user_timeval(arg2 + sizeof(struct target_timeval),
6752 &value.it_value))
6753 goto efault;
6754 }
6755 }
6756 break;
6757 case TARGET_NR_stat:
6758 if (!(p = lock_user_string(arg1)))
6759 goto efault;
6760 ret = get_errno(stat(path(p), &st));
6761 unlock_user(p, arg1, 0);
6762 goto do_stat;
6763 case TARGET_NR_lstat:
6764 if (!(p = lock_user_string(arg1)))
6765 goto efault;
6766 ret = get_errno(lstat(path(p), &st));
6767 unlock_user(p, arg1, 0);
6768 goto do_stat;
6769 case TARGET_NR_fstat:
6770 {
6771 ret = get_errno(fstat(arg1, &st));
6772 do_stat:
6773 if (!is_error(ret)) {
6774 struct target_stat *target_st;
6775
6776 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0))
6777 goto efault;
6778 memset(target_st, 0, sizeof(*target_st));
6779 __put_user(st.st_dev, &target_st->st_dev);
6780 __put_user(st.st_ino, &target_st->st_ino);
6781 __put_user(st.st_mode, &target_st->st_mode);
6782 __put_user(st.st_uid, &target_st->st_uid);
6783 __put_user(st.st_gid, &target_st->st_gid);
6784 __put_user(st.st_nlink, &target_st->st_nlink);
6785 __put_user(st.st_rdev, &target_st->st_rdev);
6786 __put_user(st.st_size, &target_st->st_size);
6787 __put_user(st.st_blksize, &target_st->st_blksize);
6788 __put_user(st.st_blocks, &target_st->st_blocks);
6789 __put_user(st.st_atime, &target_st->target_st_atime);
6790 __put_user(st.st_mtime, &target_st->target_st_mtime);
6791 __put_user(st.st_ctime, &target_st->target_st_ctime);
6792 unlock_user_struct(target_st, arg2, 1);
6793 }
6794 }
6795 break;
6796 #ifdef TARGET_NR_olduname
6797 case TARGET_NR_olduname:
6798 goto unimplemented;
6799 #endif
6800 #ifdef TARGET_NR_iopl
6801 case TARGET_NR_iopl:
6802 goto unimplemented;
6803 #endif
6804 case TARGET_NR_vhangup:
6805 ret = get_errno(vhangup());
6806 break;
6807 #ifdef TARGET_NR_idle
6808 case TARGET_NR_idle:
6809 goto unimplemented;
6810 #endif
6811 #ifdef TARGET_NR_syscall
6812 case TARGET_NR_syscall:
6813 ret = do_syscall(cpu_env, arg1 & 0xffff, arg2, arg3, arg4, arg5,
6814 arg6, arg7, arg8, 0);
6815 break;
6816 #endif
6817 case TARGET_NR_wait4:
6818 {
6819 int status;
6820 abi_long status_ptr = arg2;
6821 struct rusage rusage, *rusage_ptr;
6822 abi_ulong target_rusage = arg4;
6823 if (target_rusage)
6824 rusage_ptr = &rusage;
6825 else
6826 rusage_ptr = NULL;
6827 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
6828 if (!is_error(ret)) {
6829 if (status_ptr && ret) {
6830 status = host_to_target_waitstatus(status);
6831 if (put_user_s32(status, status_ptr))
6832 goto efault;
6833 }
6834 if (target_rusage)
6835 host_to_target_rusage(target_rusage, &rusage);
6836 }
6837 }
6838 break;
6839 #ifdef TARGET_NR_swapoff
6840 case TARGET_NR_swapoff:
6841 if (!(p = lock_user_string(arg1)))
6842 goto efault;
6843 ret = get_errno(swapoff(p));
6844 unlock_user(p, arg1, 0);
6845 break;
6846 #endif
6847 case TARGET_NR_sysinfo:
6848 {
6849 struct target_sysinfo *target_value;
6850 struct sysinfo value;
6851 ret = get_errno(sysinfo(&value));
6852 if (!is_error(ret) && arg1)
6853 {
6854 if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0))
6855 goto efault;
6856 __put_user(value.uptime, &target_value->uptime);
6857 __put_user(value.loads[0], &target_value->loads[0]);
6858 __put_user(value.loads[1], &target_value->loads[1]);
6859 __put_user(value.loads[2], &target_value->loads[2]);
6860 __put_user(value.totalram, &target_value->totalram);
6861 __put_user(value.freeram, &target_value->freeram);
6862 __put_user(value.sharedram, &target_value->sharedram);
6863 __put_user(value.bufferram, &target_value->bufferram);
6864 __put_user(value.totalswap, &target_value->totalswap);
6865 __put_user(value.freeswap, &target_value->freeswap);
6866 __put_user(value.procs, &target_value->procs);
6867 __put_user(value.totalhigh, &target_value->totalhigh);
6868 __put_user(value.freehigh, &target_value->freehigh);
6869 __put_user(value.mem_unit, &target_value->mem_unit);
6870 unlock_user_struct(target_value, arg1, 1);
6871 }
6872 }
6873 break;
6874 #ifdef TARGET_NR_ipc
6875 case TARGET_NR_ipc:
6876 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
6877 break;
6878 #endif
6879 #ifdef TARGET_NR_semget
6880 case TARGET_NR_semget:
6881 ret = get_errno(semget(arg1, arg2, arg3));
6882 break;
6883 #endif
6884 #ifdef TARGET_NR_semop
6885 case TARGET_NR_semop:
6886 ret = do_semop(arg1, arg2, arg3);
6887 break;
6888 #endif
6889 #ifdef TARGET_NR_semctl
6890 case TARGET_NR_semctl:
6891 ret = do_semctl(arg1, arg2, arg3, (union target_semun)(abi_ulong)arg4);
6892 break;
6893 #endif
6894 #ifdef TARGET_NR_msgctl
6895 case TARGET_NR_msgctl:
6896 ret = do_msgctl(arg1, arg2, arg3);
6897 break;
6898 #endif
6899 #ifdef TARGET_NR_msgget
6900 case TARGET_NR_msgget:
6901 ret = get_errno(msgget(arg1, arg2));
6902 break;
6903 #endif
6904 #ifdef TARGET_NR_msgrcv
6905 case TARGET_NR_msgrcv:
6906 ret = do_msgrcv(arg1, arg2, arg3, arg4, arg5);
6907 break;
6908 #endif
6909 #ifdef TARGET_NR_msgsnd
6910 case TARGET_NR_msgsnd:
6911 ret = do_msgsnd(arg1, arg2, arg3, arg4);
6912 break;
6913 #endif
6914 #ifdef TARGET_NR_shmget
6915 case TARGET_NR_shmget:
6916 ret = get_errno(shmget(arg1, arg2, arg3));
6917 break;
6918 #endif
6919 #ifdef TARGET_NR_shmctl
6920 case TARGET_NR_shmctl:
6921 ret = do_shmctl(arg1, arg2, arg3);
6922 break;
6923 #endif
6924 #ifdef TARGET_NR_shmat
6925 case TARGET_NR_shmat:
6926 ret = do_shmat(arg1, arg2, arg3);
6927 break;
6928 #endif
6929 #ifdef TARGET_NR_shmdt
6930 case TARGET_NR_shmdt:
6931 ret = do_shmdt(arg1);
6932 break;
6933 #endif
6934 case TARGET_NR_fsync:
6935 ret = get_errno(fsync(arg1));
6936 break;
6937 case TARGET_NR_clone:
6938 /* Linux manages to have three different orderings for its
6939 * arguments to clone(); the BACKWARDS and BACKWARDS2 defines
6940 * match the kernel's CONFIG_CLONE_* settings.
6941 * Microblaze is further special in that it uses a sixth
6942 * implicit argument to clone for the TLS pointer.
6943 */
6944 #if defined(TARGET_MICROBLAZE)
6945 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg4, arg6, arg5));
6946 #elif defined(TARGET_CLONE_BACKWARDS)
6947 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg4, arg5));
6948 #elif defined(TARGET_CLONE_BACKWARDS2)
6949 ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg5, arg4));
6950 #else
6951 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg5, arg4));
6952 #endif
6953 break;
6954 #ifdef __NR_exit_group
6955 /* new thread calls */
6956 case TARGET_NR_exit_group:
6957 #ifdef TARGET_GPROF
6958 _mcleanup();
6959 #endif
6960 gdb_exit(cpu_env, arg1);
6961 ret = get_errno(exit_group(arg1));
6962 break;
6963 #endif
6964 case TARGET_NR_setdomainname:
6965 if (!(p = lock_user_string(arg1)))
6966 goto efault;
6967 ret = get_errno(setdomainname(p, arg2));
6968 unlock_user(p, arg1, 0);
6969 break;
6970 case TARGET_NR_uname:
6971 /* no need to transcode because we use the linux syscall */
6972 {
6973 struct new_utsname * buf;
6974
6975 if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0))
6976 goto efault;
6977 ret = get_errno(sys_uname(buf));
6978 if (!is_error(ret)) {
6979 /* Overrite the native machine name with whatever is being
6980 emulated. */
6981 strcpy (buf->machine, cpu_to_uname_machine(cpu_env));
6982 /* Allow the user to override the reported release. */
6983 if (qemu_uname_release && *qemu_uname_release)
6984 strcpy (buf->release, qemu_uname_release);
6985 }
6986 unlock_user_struct(buf, arg1, 1);
6987 }
6988 break;
6989 #ifdef TARGET_I386
6990 case TARGET_NR_modify_ldt:
6991 ret = do_modify_ldt(cpu_env, arg1, arg2, arg3);
6992 break;
6993 #if !defined(TARGET_X86_64)
6994 case TARGET_NR_vm86old:
6995 goto unimplemented;
6996 case TARGET_NR_vm86:
6997 ret = do_vm86(cpu_env, arg1, arg2);
6998 break;
6999 #endif
7000 #endif
7001 case TARGET_NR_adjtimex:
7002 goto unimplemented;
7003 #ifdef TARGET_NR_create_module
7004 case TARGET_NR_create_module:
7005 #endif
7006 case TARGET_NR_init_module:
7007 case TARGET_NR_delete_module:
7008 #ifdef TARGET_NR_get_kernel_syms
7009 case TARGET_NR_get_kernel_syms:
7010 #endif
7011 goto unimplemented;
7012 case TARGET_NR_quotactl:
7013 goto unimplemented;
7014 case TARGET_NR_getpgid:
7015 ret = get_errno(getpgid(arg1));
7016 break;
7017 case TARGET_NR_fchdir:
7018 ret = get_errno(fchdir(arg1));
7019 break;
7020 #ifdef TARGET_NR_bdflush /* not on x86_64 */
7021 case TARGET_NR_bdflush:
7022 goto unimplemented;
7023 #endif
7024 #ifdef TARGET_NR_sysfs
7025 case TARGET_NR_sysfs:
7026 goto unimplemented;
7027 #endif
7028 case TARGET_NR_personality:
7029 ret = get_errno(personality(arg1));
7030 break;
7031 #ifdef TARGET_NR_afs_syscall
7032 case TARGET_NR_afs_syscall:
7033 goto unimplemented;
7034 #endif
7035 #ifdef TARGET_NR__llseek /* Not on alpha */
7036 case TARGET_NR__llseek:
7037 {
7038 int64_t res;
7039 #if !defined(__NR_llseek)
7040 res = lseek(arg1, ((uint64_t)arg2 << 32) | arg3, arg5);
7041 if (res == -1) {
7042 ret = get_errno(res);
7043 } else {
7044 ret = 0;
7045 }
7046 #else
7047 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
7048 #endif
7049 if ((ret == 0) && put_user_s64(res, arg4)) {
7050 goto efault;
7051 }
7052 }
7053 break;
7054 #endif
7055 case TARGET_NR_getdents:
7056 #ifdef __NR_getdents
7057 #if TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64
7058 {
7059 struct target_dirent *target_dirp;
7060 struct linux_dirent *dirp;
7061 abi_long count = arg3;
7062
7063 dirp = malloc(count);
7064 if (!dirp) {
7065 ret = -TARGET_ENOMEM;
7066 goto fail;
7067 }
7068
7069 ret = get_errno(sys_getdents(arg1, dirp, count));
7070 if (!is_error(ret)) {
7071 struct linux_dirent *de;
7072 struct target_dirent *tde;
7073 int len = ret;
7074 int reclen, treclen;
7075 int count1, tnamelen;
7076
7077 count1 = 0;
7078 de = dirp;
7079 if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
7080 goto efault;
7081 tde = target_dirp;
7082 while (len > 0) {
7083 reclen = de->d_reclen;
7084 tnamelen = reclen - offsetof(struct linux_dirent, d_name);
7085 assert(tnamelen >= 0);
7086 treclen = tnamelen + offsetof(struct target_dirent, d_name);
7087 assert(count1 + treclen <= count);
7088 tde->d_reclen = tswap16(treclen);
7089 tde->d_ino = tswapal(de->d_ino);
7090 tde->d_off = tswapal(de->d_off);
7091 memcpy(tde->d_name, de->d_name, tnamelen);
7092 de = (struct linux_dirent *)((char *)de + reclen);
7093 len -= reclen;
7094 tde = (struct target_dirent *)((char *)tde + treclen);
7095 count1 += treclen;
7096 }
7097 ret = count1;
7098 unlock_user(target_dirp, arg2, ret);
7099 }
7100 free(dirp);
7101 }
7102 #else
7103 {
7104 struct linux_dirent *dirp;
7105 abi_long count = arg3;
7106
7107 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
7108 goto efault;
7109 ret = get_errno(sys_getdents(arg1, dirp, count));
7110 if (!is_error(ret)) {
7111 struct linux_dirent *de;
7112 int len = ret;
7113 int reclen;
7114 de = dirp;
7115 while (len > 0) {
7116 reclen = de->d_reclen;
7117 if (reclen > len)
7118 break;
7119 de->d_reclen = tswap16(reclen);
7120 tswapls(&de->d_ino);
7121 tswapls(&de->d_off);
7122 de = (struct linux_dirent *)((char *)de + reclen);
7123 len -= reclen;
7124 }
7125 }
7126 unlock_user(dirp, arg2, ret);
7127 }
7128 #endif
7129 #else
7130 /* Implement getdents in terms of getdents64 */
7131 {
7132 struct linux_dirent64 *dirp;
7133 abi_long count = arg3;
7134
7135 dirp = lock_user(VERIFY_WRITE, arg2, count, 0);
7136 if (!dirp) {
7137 goto efault;
7138 }
7139 ret = get_errno(sys_getdents64(arg1, dirp, count));
7140 if (!is_error(ret)) {
7141 /* Convert the dirent64 structs to target dirent. We do this
7142 * in-place, since we can guarantee that a target_dirent is no
7143 * larger than a dirent64; however this means we have to be
7144 * careful to read everything before writing in the new format.
7145 */
7146 struct linux_dirent64 *de;
7147 struct target_dirent *tde;
7148 int len = ret;
7149 int tlen = 0;
7150
7151 de = dirp;
7152 tde = (struct target_dirent *)dirp;
7153 while (len > 0) {
7154 int namelen, treclen;
7155 int reclen = de->d_reclen;
7156 uint64_t ino = de->d_ino;
7157 int64_t off = de->d_off;
7158 uint8_t type = de->d_type;
7159
7160 namelen = strlen(de->d_name);
7161 treclen = offsetof(struct target_dirent, d_name)
7162 + namelen + 2;
7163 treclen = QEMU_ALIGN_UP(treclen, sizeof(abi_long));
7164
7165 memmove(tde->d_name, de->d_name, namelen + 1);
7166 tde->d_ino = tswapal(ino);
7167 tde->d_off = tswapal(off);
7168 tde->d_reclen = tswap16(treclen);
7169 /* The target_dirent type is in what was formerly a padding
7170 * byte at the end of the structure:
7171 */
7172 *(((char *)tde) + treclen - 1) = type;
7173
7174 de = (struct linux_dirent64 *)((char *)de + reclen);
7175 tde = (struct target_dirent *)((char *)tde + treclen);
7176 len -= reclen;
7177 tlen += treclen;
7178 }
7179 ret = tlen;
7180 }
7181 unlock_user(dirp, arg2, ret);
7182 }
7183 #endif
7184 break;
7185 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
7186 case TARGET_NR_getdents64:
7187 {
7188 struct linux_dirent64 *dirp;
7189 abi_long count = arg3;
7190 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
7191 goto efault;
7192 ret = get_errno(sys_getdents64(arg1, dirp, count));
7193 if (!is_error(ret)) {
7194 struct linux_dirent64 *de;
7195 int len = ret;
7196 int reclen;
7197 de = dirp;
7198 while (len > 0) {
7199 reclen = de->d_reclen;
7200 if (reclen > len)
7201 break;
7202 de->d_reclen = tswap16(reclen);
7203 tswap64s((uint64_t *)&de->d_ino);
7204 tswap64s((uint64_t *)&de->d_off);
7205 de = (struct linux_dirent64 *)((char *)de + reclen);
7206 len -= reclen;
7207 }
7208 }
7209 unlock_user(dirp, arg2, ret);
7210 }
7211 break;
7212 #endif /* TARGET_NR_getdents64 */
7213 #if defined(TARGET_NR__newselect)
7214 case TARGET_NR__newselect:
7215 ret = do_select(arg1, arg2, arg3, arg4, arg5);
7216 break;
7217 #endif
7218 #if defined(TARGET_NR_poll) || defined(TARGET_NR_ppoll)
7219 # ifdef TARGET_NR_poll
7220 case TARGET_NR_poll:
7221 # endif
7222 # ifdef TARGET_NR_ppoll
7223 case TARGET_NR_ppoll:
7224 # endif
7225 {
7226 struct target_pollfd *target_pfd;
7227 unsigned int nfds = arg2;
7228 int timeout = arg3;
7229 struct pollfd *pfd;
7230 unsigned int i;
7231
7232 target_pfd = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_pollfd) * nfds, 1);
7233 if (!target_pfd)
7234 goto efault;
7235
7236 pfd = alloca(sizeof(struct pollfd) * nfds);
7237 for(i = 0; i < nfds; i++) {
7238 pfd[i].fd = tswap32(target_pfd[i].fd);
7239 pfd[i].events = tswap16(target_pfd[i].events);
7240 }
7241
7242 # ifdef TARGET_NR_ppoll
7243 if (num == TARGET_NR_ppoll) {
7244 struct timespec _timeout_ts, *timeout_ts = &_timeout_ts;
7245 target_sigset_t *target_set;
7246 sigset_t _set, *set = &_set;
7247
7248 if (arg3) {
7249 if (target_to_host_timespec(timeout_ts, arg3)) {
7250 unlock_user(target_pfd, arg1, 0);
7251 goto efault;
7252 }
7253 } else {
7254 timeout_ts = NULL;
7255 }
7256
7257 if (arg4) {
7258 target_set = lock_user(VERIFY_READ, arg4, sizeof(target_sigset_t), 1);
7259 if (!target_set) {
7260 unlock_user(target_pfd, arg1, 0);
7261 goto efault;
7262 }
7263 target_to_host_sigset(set, target_set);
7264 } else {
7265 set = NULL;
7266 }
7267
7268 ret = get_errno(sys_ppoll(pfd, nfds, timeout_ts, set, _NSIG/8));
7269
7270 if (!is_error(ret) && arg3) {
7271 host_to_target_timespec(arg3, timeout_ts);
7272 }
7273 if (arg4) {
7274 unlock_user(target_set, arg4, 0);
7275 }
7276 } else
7277 # endif
7278 ret = get_errno(poll(pfd, nfds, timeout));
7279
7280 if (!is_error(ret)) {
7281 for(i = 0; i < nfds; i++) {
7282 target_pfd[i].revents = tswap16(pfd[i].revents);
7283 }
7284 }
7285 unlock_user(target_pfd, arg1, sizeof(struct target_pollfd) * nfds);
7286 }
7287 break;
7288 #endif
7289 case TARGET_NR_flock:
7290 /* NOTE: the flock constant seems to be the same for every
7291 Linux platform */
7292 ret = get_errno(flock(arg1, arg2));
7293 break;
7294 case TARGET_NR_readv:
7295 {
7296 struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0);
7297 if (vec != NULL) {
7298 ret = get_errno(readv(arg1, vec, arg3));
7299 unlock_iovec(vec, arg2, arg3, 1);
7300 } else {
7301 ret = -host_to_target_errno(errno);
7302 }
7303 }
7304 break;
7305 case TARGET_NR_writev:
7306 {
7307 struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
7308 if (vec != NULL) {
7309 ret = get_errno(writev(arg1, vec, arg3));
7310 unlock_iovec(vec, arg2, arg3, 0);
7311 } else {
7312 ret = -host_to_target_errno(errno);
7313 }
7314 }
7315 break;
7316 case TARGET_NR_getsid:
7317 ret = get_errno(getsid(arg1));
7318 break;
7319 #if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */
7320 case TARGET_NR_fdatasync:
7321 ret = get_errno(fdatasync(arg1));
7322 break;
7323 #endif
7324 case TARGET_NR__sysctl:
7325 /* We don't implement this, but ENOTDIR is always a safe
7326 return value. */
7327 ret = -TARGET_ENOTDIR;
7328 break;
7329 case TARGET_NR_sched_getaffinity:
7330 {
7331 unsigned int mask_size;
7332 unsigned long *mask;
7333
7334 /*
7335 * sched_getaffinity needs multiples of ulong, so need to take
7336 * care of mismatches between target ulong and host ulong sizes.
7337 */
7338 if (arg2 & (sizeof(abi_ulong) - 1)) {
7339 ret = -TARGET_EINVAL;
7340 break;
7341 }
7342 mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
7343
7344 mask = alloca(mask_size);
7345 ret = get_errno(sys_sched_getaffinity(arg1, mask_size, mask));
7346
7347 if (!is_error(ret)) {
7348 if (copy_to_user(arg3, mask, ret)) {
7349 goto efault;
7350 }
7351 }
7352 }
7353 break;
7354 case TARGET_NR_sched_setaffinity:
7355 {
7356 unsigned int mask_size;
7357 unsigned long *mask;
7358
7359 /*
7360 * sched_setaffinity needs multiples of ulong, so need to take
7361 * care of mismatches between target ulong and host ulong sizes.
7362 */
7363 if (arg2 & (sizeof(abi_ulong) - 1)) {
7364 ret = -TARGET_EINVAL;
7365 break;
7366 }
7367 mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
7368
7369 mask = alloca(mask_size);
7370 if (!lock_user_struct(VERIFY_READ, p, arg3, 1)) {
7371 goto efault;
7372 }
7373 memcpy(mask, p, arg2);
7374 unlock_user_struct(p, arg2, 0);
7375
7376 ret = get_errno(sys_sched_setaffinity(arg1, mask_size, mask));
7377 }
7378 break;
7379 case TARGET_NR_sched_setparam:
7380 {
7381 struct sched_param *target_schp;
7382 struct sched_param schp;
7383
7384 if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1))
7385 goto efault;
7386 schp.sched_priority = tswap32(target_schp->sched_priority);
7387 unlock_user_struct(target_schp, arg2, 0);
7388 ret = get_errno(sched_setparam(arg1, &schp));
7389 }
7390 break;
7391 case TARGET_NR_sched_getparam:
7392 {
7393 struct sched_param *target_schp;
7394 struct sched_param schp;
7395 ret = get_errno(sched_getparam(arg1, &schp));
7396 if (!is_error(ret)) {
7397 if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0))
7398 goto efault;
7399 target_schp->sched_priority = tswap32(schp.sched_priority);
7400 unlock_user_struct(target_schp, arg2, 1);
7401 }
7402 }
7403 break;
7404 case TARGET_NR_sched_setscheduler:
7405 {
7406 struct sched_param *target_schp;
7407 struct sched_param schp;
7408 if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1))
7409 goto efault;
7410 schp.sched_priority = tswap32(target_schp->sched_priority);
7411 unlock_user_struct(target_schp, arg3, 0);
7412 ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
7413 }
7414 break;
7415 case TARGET_NR_sched_getscheduler:
7416 ret = get_errno(sched_getscheduler(arg1));
7417 break;
7418 case TARGET_NR_sched_yield:
7419 ret = get_errno(sched_yield());
7420 break;
7421 case TARGET_NR_sched_get_priority_max:
7422 ret = get_errno(sched_get_priority_max(arg1));
7423 break;
7424 case TARGET_NR_sched_get_priority_min:
7425 ret = get_errno(sched_get_priority_min(arg1));
7426 break;
7427 case TARGET_NR_sched_rr_get_interval:
7428 {
7429 struct timespec ts;
7430 ret = get_errno(sched_rr_get_interval(arg1, &ts));
7431 if (!is_error(ret)) {
7432 host_to_target_timespec(arg2, &ts);
7433 }
7434 }
7435 break;
7436 case TARGET_NR_nanosleep:
7437 {
7438 struct timespec req, rem;
7439 target_to_host_timespec(&req, arg1);
7440 ret = get_errno(nanosleep(&req, &rem));
7441 if (is_error(ret) && arg2) {
7442 host_to_target_timespec(arg2, &rem);
7443 }
7444 }
7445 break;
7446 #ifdef TARGET_NR_query_module
7447 case TARGET_NR_query_module:
7448 goto unimplemented;
7449 #endif
7450 #ifdef TARGET_NR_nfsservctl
7451 case TARGET_NR_nfsservctl:
7452 goto unimplemented;
7453 #endif
7454 case TARGET_NR_prctl:
7455 switch (arg1) {
7456 case PR_GET_PDEATHSIG:
7457 {
7458 int deathsig;
7459 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5));
7460 if (!is_error(ret) && arg2
7461 && put_user_ual(deathsig, arg2)) {
7462 goto efault;
7463 }
7464 break;
7465 }
7466 #ifdef PR_GET_NAME
7467 case PR_GET_NAME:
7468 {
7469 void *name = lock_user(VERIFY_WRITE, arg2, 16, 1);
7470 if (!name) {
7471 goto efault;
7472 }
7473 ret = get_errno(prctl(arg1, (unsigned long)name,
7474 arg3, arg4, arg5));
7475 unlock_user(name, arg2, 16);
7476 break;
7477 }
7478 case PR_SET_NAME:
7479 {
7480 void *name = lock_user(VERIFY_READ, arg2, 16, 1);
7481 if (!name) {
7482 goto efault;
7483 }
7484 ret = get_errno(prctl(arg1, (unsigned long)name,
7485 arg3, arg4, arg5));
7486 unlock_user(name, arg2, 0);
7487 break;
7488 }
7489 #endif
7490 default:
7491 /* Most prctl options have no pointer arguments */
7492 ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5));
7493 break;
7494 }
7495 break;
7496 #ifdef TARGET_NR_arch_prctl
7497 case TARGET_NR_arch_prctl:
7498 #if defined(TARGET_I386) && !defined(TARGET_ABI32)
7499 ret = do_arch_prctl(cpu_env, arg1, arg2);
7500 break;
7501 #else
7502 goto unimplemented;
7503 #endif
7504 #endif
7505 #ifdef TARGET_NR_pread64
7506 case TARGET_NR_pread64:
7507 if (regpairs_aligned(cpu_env)) {
7508 arg4 = arg5;
7509 arg5 = arg6;
7510 }
7511 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
7512 goto efault;
7513 ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5)));
7514 unlock_user(p, arg2, ret);
7515 break;
7516 case TARGET_NR_pwrite64:
7517 if (regpairs_aligned(cpu_env)) {
7518 arg4 = arg5;
7519 arg5 = arg6;
7520 }
7521 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
7522 goto efault;
7523 ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5)));
7524 unlock_user(p, arg2, 0);
7525 break;
7526 #endif
7527 case TARGET_NR_getcwd:
7528 if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0)))
7529 goto efault;
7530 ret = get_errno(sys_getcwd1(p, arg2));
7531 unlock_user(p, arg1, ret);
7532 break;
7533 case TARGET_NR_capget:
7534 goto unimplemented;
7535 case TARGET_NR_capset:
7536 goto unimplemented;
7537 case TARGET_NR_sigaltstack:
7538 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_MIPS) || \
7539 defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA) || \
7540 defined(TARGET_M68K) || defined(TARGET_S390X) || defined(TARGET_OPENRISC)
7541 ret = do_sigaltstack(arg1, arg2, get_sp_from_cpustate((CPUArchState *)cpu_env));
7542 break;
7543 #else
7544 goto unimplemented;
7545 #endif
7546
7547 #ifdef CONFIG_SENDFILE
7548 case TARGET_NR_sendfile:
7549 {
7550 off_t *offp = NULL;
7551 off_t off;
7552 if (arg3) {
7553 ret = get_user_sal(off, arg3);
7554 if (is_error(ret)) {
7555 break;
7556 }
7557 offp = &off;
7558 }
7559 ret = get_errno(sendfile(arg1, arg2, offp, arg4));
7560 if (!is_error(ret) && arg3) {
7561 abi_long ret2 = put_user_sal(off, arg3);
7562 if (is_error(ret2)) {
7563 ret = ret2;
7564 }
7565 }
7566 break;
7567 }
7568 #ifdef TARGET_NR_sendfile64
7569 case TARGET_NR_sendfile64:
7570 {
7571 off_t *offp = NULL;
7572 off_t off;
7573 if (arg3) {
7574 ret = get_user_s64(off, arg3);
7575 if (is_error(ret)) {
7576 break;
7577 }
7578 offp = &off;
7579 }
7580 ret = get_errno(sendfile(arg1, arg2, offp, arg4));
7581 if (!is_error(ret) && arg3) {
7582 abi_long ret2 = put_user_s64(off, arg3);
7583 if (is_error(ret2)) {
7584 ret = ret2;
7585 }
7586 }
7587 break;
7588 }
7589 #endif
7590 #else
7591 case TARGET_NR_sendfile:
7592 #ifdef TARGET_NR_sendfile64
7593 case TARGET_NR_sendfile64:
7594 #endif
7595 goto unimplemented;
7596 #endif
7597
7598 #ifdef TARGET_NR_getpmsg
7599 case TARGET_NR_getpmsg:
7600 goto unimplemented;
7601 #endif
7602 #ifdef TARGET_NR_putpmsg
7603 case TARGET_NR_putpmsg:
7604 goto unimplemented;
7605 #endif
7606 #ifdef TARGET_NR_vfork
7607 case TARGET_NR_vfork:
7608 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD,
7609 0, 0, 0, 0));
7610 break;
7611 #endif
7612 #ifdef TARGET_NR_ugetrlimit
7613 case TARGET_NR_ugetrlimit:
7614 {
7615 struct rlimit rlim;
7616 int resource = target_to_host_resource(arg1);
7617 ret = get_errno(getrlimit(resource, &rlim));
7618 if (!is_error(ret)) {
7619 struct target_rlimit *target_rlim;
7620 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
7621 goto efault;
7622 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
7623 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
7624 unlock_user_struct(target_rlim, arg2, 1);
7625 }
7626 break;
7627 }
7628 #endif
7629 #ifdef TARGET_NR_truncate64
7630 case TARGET_NR_truncate64:
7631 if (!(p = lock_user_string(arg1)))
7632 goto efault;
7633 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
7634 unlock_user(p, arg1, 0);
7635 break;
7636 #endif
7637 #ifdef TARGET_NR_ftruncate64
7638 case TARGET_NR_ftruncate64:
7639 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
7640 break;
7641 #endif
7642 #ifdef TARGET_NR_stat64
7643 case TARGET_NR_stat64:
7644 if (!(p = lock_user_string(arg1)))
7645 goto efault;
7646 ret = get_errno(stat(path(p), &st));
7647 unlock_user(p, arg1, 0);
7648 if (!is_error(ret))
7649 ret = host_to_target_stat64(cpu_env, arg2, &st);
7650 break;
7651 #endif
7652 #ifdef TARGET_NR_lstat64
7653 case TARGET_NR_lstat64:
7654 if (!(p = lock_user_string(arg1)))
7655 goto efault;
7656 ret = get_errno(lstat(path(p), &st));
7657 unlock_user(p, arg1, 0);
7658 if (!is_error(ret))
7659 ret = host_to_target_stat64(cpu_env, arg2, &st);
7660 break;
7661 #endif
7662 #ifdef TARGET_NR_fstat64
7663 case TARGET_NR_fstat64:
7664 ret = get_errno(fstat(arg1, &st));
7665 if (!is_error(ret))
7666 ret = host_to_target_stat64(cpu_env, arg2, &st);
7667 break;
7668 #endif
7669 #if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat))
7670 #ifdef TARGET_NR_fstatat64
7671 case TARGET_NR_fstatat64:
7672 #endif
7673 #ifdef TARGET_NR_newfstatat
7674 case TARGET_NR_newfstatat:
7675 #endif
7676 if (!(p = lock_user_string(arg2)))
7677 goto efault;
7678 ret = get_errno(fstatat(arg1, path(p), &st, arg4));
7679 if (!is_error(ret))
7680 ret = host_to_target_stat64(cpu_env, arg3, &st);
7681 break;
7682 #endif
7683 case TARGET_NR_lchown:
7684 if (!(p = lock_user_string(arg1)))
7685 goto efault;
7686 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
7687 unlock_user(p, arg1, 0);
7688 break;
7689 #ifdef TARGET_NR_getuid
7690 case TARGET_NR_getuid:
7691 ret = get_errno(high2lowuid(getuid()));
7692 break;
7693 #endif
7694 #ifdef TARGET_NR_getgid
7695 case TARGET_NR_getgid:
7696 ret = get_errno(high2lowgid(getgid()));
7697 break;
7698 #endif
7699 #ifdef TARGET_NR_geteuid
7700 case TARGET_NR_geteuid:
7701 ret = get_errno(high2lowuid(geteuid()));
7702 break;
7703 #endif
7704 #ifdef TARGET_NR_getegid
7705 case TARGET_NR_getegid:
7706 ret = get_errno(high2lowgid(getegid()));
7707 break;
7708 #endif
7709 case TARGET_NR_setreuid:
7710 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
7711 break;
7712 case TARGET_NR_setregid:
7713 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
7714 break;
7715 case TARGET_NR_getgroups:
7716 {
7717 int gidsetsize = arg1;
7718 target_id *target_grouplist;
7719 gid_t *grouplist;
7720 int i;
7721
7722 grouplist = alloca(gidsetsize * sizeof(gid_t));
7723 ret = get_errno(getgroups(gidsetsize, grouplist));
7724 if (gidsetsize == 0)
7725 break;
7726 if (!is_error(ret)) {
7727 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * sizeof(target_id), 0);
7728 if (!target_grouplist)
7729 goto efault;
7730 for(i = 0;i < ret; i++)
7731 target_grouplist[i] = tswapid(high2lowgid(grouplist[i]));
7732 unlock_user(target_grouplist, arg2, gidsetsize * sizeof(target_id));
7733 }
7734 }
7735 break;
7736 case TARGET_NR_setgroups:
7737 {
7738 int gidsetsize = arg1;
7739 target_id *target_grouplist;
7740 gid_t *grouplist = NULL;
7741 int i;
7742 if (gidsetsize) {
7743 grouplist = alloca(gidsetsize * sizeof(gid_t));
7744 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * sizeof(target_id), 1);
7745 if (!target_grouplist) {
7746 ret = -TARGET_EFAULT;
7747 goto fail;
7748 }
7749 for (i = 0; i < gidsetsize; i++) {
7750 grouplist[i] = low2highgid(tswapid(target_grouplist[i]));
7751 }
7752 unlock_user(target_grouplist, arg2, 0);
7753 }
7754 ret = get_errno(setgroups(gidsetsize, grouplist));
7755 }
7756 break;
7757 case TARGET_NR_fchown:
7758 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
7759 break;
7760 #if defined(TARGET_NR_fchownat)
7761 case TARGET_NR_fchownat:
7762 if (!(p = lock_user_string(arg2)))
7763 goto efault;
7764 ret = get_errno(fchownat(arg1, p, low2highuid(arg3),
7765 low2highgid(arg4), arg5));
7766 unlock_user(p, arg2, 0);
7767 break;
7768 #endif
7769 #ifdef TARGET_NR_setresuid
7770 case TARGET_NR_setresuid:
7771 ret = get_errno(setresuid(low2highuid(arg1),
7772 low2highuid(arg2),
7773 low2highuid(arg3)));
7774 break;
7775 #endif
7776 #ifdef TARGET_NR_getresuid
7777 case TARGET_NR_getresuid:
7778 {
7779 uid_t ruid, euid, suid;
7780 ret = get_errno(getresuid(&ruid, &euid, &suid));
7781 if (!is_error(ret)) {
7782 if (put_user_u16(high2lowuid(ruid), arg1)
7783 || put_user_u16(high2lowuid(euid), arg2)
7784 || put_user_u16(high2lowuid(suid), arg3))
7785 goto efault;
7786 }
7787 }
7788 break;
7789 #endif
7790 #ifdef TARGET_NR_getresgid
7791 case TARGET_NR_setresgid:
7792 ret = get_errno(setresgid(low2highgid(arg1),
7793 low2highgid(arg2),
7794 low2highgid(arg3)));
7795 break;
7796 #endif
7797 #ifdef TARGET_NR_getresgid
7798 case TARGET_NR_getresgid:
7799 {
7800 gid_t rgid, egid, sgid;
7801 ret = get_errno(getresgid(&rgid, &egid, &sgid));
7802 if (!is_error(ret)) {
7803 if (put_user_u16(high2lowgid(rgid), arg1)
7804 || put_user_u16(high2lowgid(egid), arg2)
7805 || put_user_u16(high2lowgid(sgid), arg3))
7806 goto efault;
7807 }
7808 }
7809 break;
7810 #endif
7811 case TARGET_NR_chown:
7812 if (!(p = lock_user_string(arg1)))
7813 goto efault;
7814 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
7815 unlock_user(p, arg1, 0);
7816 break;
7817 case TARGET_NR_setuid:
7818 ret = get_errno(setuid(low2highuid(arg1)));
7819 break;
7820 case TARGET_NR_setgid:
7821 ret = get_errno(setgid(low2highgid(arg1)));
7822 break;
7823 case TARGET_NR_setfsuid:
7824 ret = get_errno(setfsuid(arg1));
7825 break;
7826 case TARGET_NR_setfsgid:
7827 ret = get_errno(setfsgid(arg1));
7828 break;
7829
7830 #ifdef TARGET_NR_lchown32
7831 case TARGET_NR_lchown32:
7832 if (!(p = lock_user_string(arg1)))
7833 goto efault;
7834 ret = get_errno(lchown(p, arg2, arg3));
7835 unlock_user(p, arg1, 0);
7836 break;
7837 #endif
7838 #ifdef TARGET_NR_getuid32
7839 case TARGET_NR_getuid32:
7840 ret = get_errno(getuid());
7841 break;
7842 #endif
7843
7844 #if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA)
7845 /* Alpha specific */
7846 case TARGET_NR_getxuid:
7847 {
7848 uid_t euid;
7849 euid=geteuid();
7850 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=euid;
7851 }
7852 ret = get_errno(getuid());
7853 break;
7854 #endif
7855 #if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA)
7856 /* Alpha specific */
7857 case TARGET_NR_getxgid:
7858 {
7859 uid_t egid;
7860 egid=getegid();
7861 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=egid;
7862 }
7863 ret = get_errno(getgid());
7864 break;
7865 #endif
7866 #if defined(TARGET_NR_osf_getsysinfo) && defined(TARGET_ALPHA)
7867 /* Alpha specific */
7868 case TARGET_NR_osf_getsysinfo:
7869 ret = -TARGET_EOPNOTSUPP;
7870 switch (arg1) {
7871 case TARGET_GSI_IEEE_FP_CONTROL:
7872 {
7873 uint64_t swcr, fpcr = cpu_alpha_load_fpcr (cpu_env);
7874
7875 /* Copied from linux ieee_fpcr_to_swcr. */
7876 swcr = (fpcr >> 35) & SWCR_STATUS_MASK;
7877 swcr |= (fpcr >> 36) & SWCR_MAP_DMZ;
7878 swcr |= (~fpcr >> 48) & (SWCR_TRAP_ENABLE_INV
7879 | SWCR_TRAP_ENABLE_DZE
7880 | SWCR_TRAP_ENABLE_OVF);
7881 swcr |= (~fpcr >> 57) & (SWCR_TRAP_ENABLE_UNF
7882 | SWCR_TRAP_ENABLE_INE);
7883 swcr |= (fpcr >> 47) & SWCR_MAP_UMZ;
7884 swcr |= (~fpcr >> 41) & SWCR_TRAP_ENABLE_DNO;
7885
7886 if (put_user_u64 (swcr, arg2))
7887 goto efault;
7888 ret = 0;
7889 }
7890 break;
7891
7892 /* case GSI_IEEE_STATE_AT_SIGNAL:
7893 -- Not implemented in linux kernel.
7894 case GSI_UACPROC:
7895 -- Retrieves current unaligned access state; not much used.
7896 case GSI_PROC_TYPE:
7897 -- Retrieves implver information; surely not used.
7898 case GSI_GET_HWRPB:
7899 -- Grabs a copy of the HWRPB; surely not used.
7900 */
7901 }
7902 break;
7903 #endif
7904 #if defined(TARGET_NR_osf_setsysinfo) && defined(TARGET_ALPHA)
7905 /* Alpha specific */
7906 case TARGET_NR_osf_setsysinfo:
7907 ret = -TARGET_EOPNOTSUPP;
7908 switch (arg1) {
7909 case TARGET_SSI_IEEE_FP_CONTROL:
7910 {
7911 uint64_t swcr, fpcr, orig_fpcr;
7912
7913 if (get_user_u64 (swcr, arg2)) {
7914 goto efault;
7915 }
7916 orig_fpcr = cpu_alpha_load_fpcr(cpu_env);
7917 fpcr = orig_fpcr & FPCR_DYN_MASK;
7918
7919 /* Copied from linux ieee_swcr_to_fpcr. */
7920 fpcr |= (swcr & SWCR_STATUS_MASK) << 35;
7921 fpcr |= (swcr & SWCR_MAP_DMZ) << 36;
7922 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_INV
7923 | SWCR_TRAP_ENABLE_DZE
7924 | SWCR_TRAP_ENABLE_OVF)) << 48;
7925 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_UNF
7926 | SWCR_TRAP_ENABLE_INE)) << 57;
7927 fpcr |= (swcr & SWCR_MAP_UMZ ? FPCR_UNDZ | FPCR_UNFD : 0);
7928 fpcr |= (~swcr & SWCR_TRAP_ENABLE_DNO) << 41;
7929
7930 cpu_alpha_store_fpcr(cpu_env, fpcr);
7931 ret = 0;
7932 }
7933 break;
7934
7935 case TARGET_SSI_IEEE_RAISE_EXCEPTION:
7936 {
7937 uint64_t exc, fpcr, orig_fpcr;
7938 int si_code;
7939
7940 if (get_user_u64(exc, arg2)) {
7941 goto efault;
7942 }
7943
7944 orig_fpcr = cpu_alpha_load_fpcr(cpu_env);
7945
7946 /* We only add to the exception status here. */
7947 fpcr = orig_fpcr | ((exc & SWCR_STATUS_MASK) << 35);
7948
7949 cpu_alpha_store_fpcr(cpu_env, fpcr);
7950 ret = 0;
7951
7952 /* Old exceptions are not signaled. */
7953 fpcr &= ~(orig_fpcr & FPCR_STATUS_MASK);
7954
7955 /* If any exceptions set by this call,
7956 and are unmasked, send a signal. */
7957 si_code = 0;
7958 if ((fpcr & (FPCR_INE | FPCR_INED)) == FPCR_INE) {
7959 si_code = TARGET_FPE_FLTRES;
7960 }
7961 if ((fpcr & (FPCR_UNF | FPCR_UNFD)) == FPCR_UNF) {
7962 si_code = TARGET_FPE_FLTUND;
7963 }
7964 if ((fpcr & (FPCR_OVF | FPCR_OVFD)) == FPCR_OVF) {
7965 si_code = TARGET_FPE_FLTOVF;
7966 }
7967 if ((fpcr & (FPCR_DZE | FPCR_DZED)) == FPCR_DZE) {
7968 si_code = TARGET_FPE_FLTDIV;
7969 }
7970 if ((fpcr & (FPCR_INV | FPCR_INVD)) == FPCR_INV) {
7971 si_code = TARGET_FPE_FLTINV;
7972 }
7973 if (si_code != 0) {
7974 target_siginfo_t info;
7975 info.si_signo = SIGFPE;
7976 info.si_errno = 0;
7977 info.si_code = si_code;
7978 info._sifields._sigfault._addr
7979 = ((CPUArchState *)cpu_env)->pc;
7980 queue_signal((CPUArchState *)cpu_env, info.si_signo, &info);
7981 }
7982 }
7983 break;
7984
7985 /* case SSI_NVPAIRS:
7986 -- Used with SSIN_UACPROC to enable unaligned accesses.
7987 case SSI_IEEE_STATE_AT_SIGNAL:
7988 case SSI_IEEE_IGNORE_STATE_AT_SIGNAL:
7989 -- Not implemented in linux kernel
7990 */
7991 }
7992 break;
7993 #endif
7994 #ifdef TARGET_NR_osf_sigprocmask
7995 /* Alpha specific. */
7996 case TARGET_NR_osf_sigprocmask:
7997 {
7998 abi_ulong mask;
7999 int how;
8000 sigset_t set, oldset;
8001
8002 switch(arg1) {
8003 case TARGET_SIG_BLOCK:
8004 how = SIG_BLOCK;
8005 break;
8006 case TARGET_SIG_UNBLOCK:
8007 how = SIG_UNBLOCK;
8008 break;
8009 case TARGET_SIG_SETMASK:
8010 how = SIG_SETMASK;
8011 break;
8012 default:
8013 ret = -TARGET_EINVAL;
8014 goto fail;
8015 }
8016 mask = arg2;
8017 target_to_host_old_sigset(&set, &mask);
8018 sigprocmask(how, &set, &oldset);
8019 host_to_target_old_sigset(&mask, &oldset);
8020 ret = mask;
8021 }
8022 break;
8023 #endif
8024
8025 #ifdef TARGET_NR_getgid32
8026 case TARGET_NR_getgid32:
8027 ret = get_errno(getgid());
8028 break;
8029 #endif
8030 #ifdef TARGET_NR_geteuid32
8031 case TARGET_NR_geteuid32:
8032 ret = get_errno(geteuid());
8033 break;
8034 #endif
8035 #ifdef TARGET_NR_getegid32
8036 case TARGET_NR_getegid32:
8037 ret = get_errno(getegid());
8038 break;
8039 #endif
8040 #ifdef TARGET_NR_setreuid32
8041 case TARGET_NR_setreuid32:
8042 ret = get_errno(setreuid(arg1, arg2));
8043 break;
8044 #endif
8045 #ifdef TARGET_NR_setregid32
8046 case TARGET_NR_setregid32:
8047 ret = get_errno(setregid(arg1, arg2));
8048 break;
8049 #endif
8050 #ifdef TARGET_NR_getgroups32
8051 case TARGET_NR_getgroups32:
8052 {
8053 int gidsetsize = arg1;
8054 uint32_t *target_grouplist;
8055 gid_t *grouplist;
8056 int i;
8057
8058 grouplist = alloca(gidsetsize * sizeof(gid_t));
8059 ret = get_errno(getgroups(gidsetsize, grouplist));
8060 if (gidsetsize == 0)
8061 break;
8062 if (!is_error(ret)) {
8063 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0);
8064 if (!target_grouplist) {
8065 ret = -TARGET_EFAULT;
8066 goto fail;
8067 }
8068 for(i = 0;i < ret; i++)
8069 target_grouplist[i] = tswap32(grouplist[i]);
8070 unlock_user(target_grouplist, arg2, gidsetsize * 4);
8071 }
8072 }
8073 break;
8074 #endif
8075 #ifdef TARGET_NR_setgroups32
8076 case TARGET_NR_setgroups32:
8077 {
8078 int gidsetsize = arg1;
8079 uint32_t *target_grouplist;
8080 gid_t *grouplist;
8081 int i;
8082
8083 grouplist = alloca(gidsetsize * sizeof(gid_t));
8084 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1);
8085 if (!target_grouplist) {
8086 ret = -TARGET_EFAULT;
8087 goto fail;
8088 }
8089 for(i = 0;i < gidsetsize; i++)
8090 grouplist[i] = tswap32(target_grouplist[i]);
8091 unlock_user(target_grouplist, arg2, 0);
8092 ret = get_errno(setgroups(gidsetsize, grouplist));
8093 }
8094 break;
8095 #endif
8096 #ifdef TARGET_NR_fchown32
8097 case TARGET_NR_fchown32:
8098 ret = get_errno(fchown(arg1, arg2, arg3));
8099 break;
8100 #endif
8101 #ifdef TARGET_NR_setresuid32
8102 case TARGET_NR_setresuid32:
8103 ret = get_errno(setresuid(arg1, arg2, arg3));
8104 break;
8105 #endif
8106 #ifdef TARGET_NR_getresuid32
8107 case TARGET_NR_getresuid32:
8108 {
8109 uid_t ruid, euid, suid;
8110 ret = get_errno(getresuid(&ruid, &euid, &suid));
8111 if (!is_error(ret)) {
8112 if (put_user_u32(ruid, arg1)
8113 || put_user_u32(euid, arg2)
8114 || put_user_u32(suid, arg3))
8115 goto efault;
8116 }
8117 }
8118 break;
8119 #endif
8120 #ifdef TARGET_NR_setresgid32
8121 case TARGET_NR_setresgid32:
8122 ret = get_errno(setresgid(arg1, arg2, arg3));
8123 break;
8124 #endif
8125 #ifdef TARGET_NR_getresgid32
8126 case TARGET_NR_getresgid32:
8127 {
8128 gid_t rgid, egid, sgid;
8129 ret = get_errno(getresgid(&rgid, &egid, &sgid));
8130 if (!is_error(ret)) {
8131 if (put_user_u32(rgid, arg1)
8132 || put_user_u32(egid, arg2)
8133 || put_user_u32(sgid, arg3))
8134 goto efault;
8135 }
8136 }
8137 break;
8138 #endif
8139 #ifdef TARGET_NR_chown32
8140 case TARGET_NR_chown32:
8141 if (!(p = lock_user_string(arg1)))
8142 goto efault;
8143 ret = get_errno(chown(p, arg2, arg3));
8144 unlock_user(p, arg1, 0);
8145 break;
8146 #endif
8147 #ifdef TARGET_NR_setuid32
8148 case TARGET_NR_setuid32:
8149 ret = get_errno(setuid(arg1));
8150 break;
8151 #endif
8152 #ifdef TARGET_NR_setgid32
8153 case TARGET_NR_setgid32:
8154 ret = get_errno(setgid(arg1));
8155 break;
8156 #endif
8157 #ifdef TARGET_NR_setfsuid32
8158 case TARGET_NR_setfsuid32:
8159 ret = get_errno(setfsuid(arg1));
8160 break;
8161 #endif
8162 #ifdef TARGET_NR_setfsgid32
8163 case TARGET_NR_setfsgid32:
8164 ret = get_errno(setfsgid(arg1));
8165 break;
8166 #endif
8167
8168 case TARGET_NR_pivot_root:
8169 goto unimplemented;
8170 #ifdef TARGET_NR_mincore
8171 case TARGET_NR_mincore:
8172 {
8173 void *a;
8174 ret = -TARGET_EFAULT;
8175 if (!(a = lock_user(VERIFY_READ, arg1,arg2, 0)))
8176 goto efault;
8177 if (!(p = lock_user_string(arg3)))
8178 goto mincore_fail;
8179 ret = get_errno(mincore(a, arg2, p));
8180 unlock_user(p, arg3, ret);
8181 mincore_fail:
8182 unlock_user(a, arg1, 0);
8183 }
8184 break;
8185 #endif
8186 #ifdef TARGET_NR_arm_fadvise64_64
8187 case TARGET_NR_arm_fadvise64_64:
8188 {
8189 /*
8190 * arm_fadvise64_64 looks like fadvise64_64 but
8191 * with different argument order
8192 */
8193 abi_long temp;
8194 temp = arg3;
8195 arg3 = arg4;
8196 arg4 = temp;
8197 }
8198 #endif
8199 #if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_arm_fadvise64_64) || defined(TARGET_NR_fadvise64)
8200 #ifdef TARGET_NR_fadvise64_64
8201 case TARGET_NR_fadvise64_64:
8202 #endif
8203 #ifdef TARGET_NR_fadvise64
8204 case TARGET_NR_fadvise64:
8205 #endif
8206 #ifdef TARGET_S390X
8207 switch (arg4) {
8208 case 4: arg4 = POSIX_FADV_NOREUSE + 1; break; /* make sure it's an invalid value */
8209 case 5: arg4 = POSIX_FADV_NOREUSE + 2; break; /* ditto */
8210 case 6: arg4 = POSIX_FADV_DONTNEED; break;
8211 case 7: arg4 = POSIX_FADV_NOREUSE; break;
8212 default: break;
8213 }
8214 #endif
8215 ret = -posix_fadvise(arg1, arg2, arg3, arg4);
8216 break;
8217 #endif
8218 #ifdef TARGET_NR_madvise
8219 case TARGET_NR_madvise:
8220 /* A straight passthrough may not be safe because qemu sometimes
8221 turns private file-backed mappings into anonymous mappings.
8222 This will break MADV_DONTNEED.
8223 This is a hint, so ignoring and returning success is ok. */
8224 ret = get_errno(0);
8225 break;
8226 #endif
8227 #if TARGET_ABI_BITS == 32
8228 case TARGET_NR_fcntl64:
8229 {
8230 int cmd;
8231 struct flock64 fl;
8232 struct target_flock64 *target_fl;
8233 #ifdef TARGET_ARM
8234 struct target_eabi_flock64 *target_efl;
8235 #endif
8236
8237 cmd = target_to_host_fcntl_cmd(arg2);
8238 if (cmd == -TARGET_EINVAL) {
8239 ret = cmd;
8240 break;
8241 }
8242
8243 switch(arg2) {
8244 case TARGET_F_GETLK64:
8245 #ifdef TARGET_ARM
8246 if (((CPUARMState *)cpu_env)->eabi) {
8247 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1))
8248 goto efault;
8249 fl.l_type = tswap16(target_efl->l_type);
8250 fl.l_whence = tswap16(target_efl->l_whence);
8251 fl.l_start = tswap64(target_efl->l_start);
8252 fl.l_len = tswap64(target_efl->l_len);
8253 fl.l_pid = tswap32(target_efl->l_pid);
8254 unlock_user_struct(target_efl, arg3, 0);
8255 } else
8256 #endif
8257 {
8258 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1))
8259 goto efault;
8260 fl.l_type = tswap16(target_fl->l_type);
8261 fl.l_whence = tswap16(target_fl->l_whence);
8262 fl.l_start = tswap64(target_fl->l_start);
8263 fl.l_len = tswap64(target_fl->l_len);
8264 fl.l_pid = tswap32(target_fl->l_pid);
8265 unlock_user_struct(target_fl, arg3, 0);
8266 }
8267 ret = get_errno(fcntl(arg1, cmd, &fl));
8268 if (ret == 0) {
8269 #ifdef TARGET_ARM
8270 if (((CPUARMState *)cpu_env)->eabi) {
8271 if (!lock_user_struct(VERIFY_WRITE, target_efl, arg3, 0))
8272 goto efault;
8273 target_efl->l_type = tswap16(fl.l_type);
8274 target_efl->l_whence = tswap16(fl.l_whence);
8275 target_efl->l_start = tswap64(fl.l_start);
8276 target_efl->l_len = tswap64(fl.l_len);
8277 target_efl->l_pid = tswap32(fl.l_pid);
8278 unlock_user_struct(target_efl, arg3, 1);
8279 } else
8280 #endif
8281 {
8282 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg3, 0))
8283 goto efault;
8284 target_fl->l_type = tswap16(fl.l_type);
8285 target_fl->l_whence = tswap16(fl.l_whence);
8286 target_fl->l_start = tswap64(fl.l_start);
8287 target_fl->l_len = tswap64(fl.l_len);
8288 target_fl->l_pid = tswap32(fl.l_pid);
8289 unlock_user_struct(target_fl, arg3, 1);
8290 }
8291 }
8292 break;
8293
8294 case TARGET_F_SETLK64:
8295 case TARGET_F_SETLKW64:
8296 #ifdef TARGET_ARM
8297 if (((CPUARMState *)cpu_env)->eabi) {
8298 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1))
8299 goto efault;
8300 fl.l_type = tswap16(target_efl->l_type);
8301 fl.l_whence = tswap16(target_efl->l_whence);
8302 fl.l_start = tswap64(target_efl->l_start);
8303 fl.l_len = tswap64(target_efl->l_len);
8304 fl.l_pid = tswap32(target_efl->l_pid);
8305 unlock_user_struct(target_efl, arg3, 0);
8306 } else
8307 #endif
8308 {
8309 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1))
8310 goto efault;
8311 fl.l_type = tswap16(target_fl->l_type);
8312 fl.l_whence = tswap16(target_fl->l_whence);
8313 fl.l_start = tswap64(target_fl->l_start);
8314 fl.l_len = tswap64(target_fl->l_len);
8315 fl.l_pid = tswap32(target_fl->l_pid);
8316 unlock_user_struct(target_fl, arg3, 0);
8317 }
8318 ret = get_errno(fcntl(arg1, cmd, &fl));
8319 break;
8320 default:
8321 ret = do_fcntl(arg1, arg2, arg3);
8322 break;
8323 }
8324 break;
8325 }
8326 #endif
8327 #ifdef TARGET_NR_cacheflush
8328 case TARGET_NR_cacheflush:
8329 /* self-modifying code is handled automatically, so nothing needed */
8330 ret = 0;
8331 break;
8332 #endif
8333 #ifdef TARGET_NR_security
8334 case TARGET_NR_security:
8335 goto unimplemented;
8336 #endif
8337 #ifdef TARGET_NR_getpagesize
8338 case TARGET_NR_getpagesize:
8339 ret = TARGET_PAGE_SIZE;
8340 break;
8341 #endif
8342 case TARGET_NR_gettid:
8343 ret = get_errno(gettid());
8344 break;
8345 #ifdef TARGET_NR_readahead
8346 case TARGET_NR_readahead:
8347 #if TARGET_ABI_BITS == 32
8348 if (regpairs_aligned(cpu_env)) {
8349 arg2 = arg3;
8350 arg3 = arg4;
8351 arg4 = arg5;
8352 }
8353 ret = get_errno(readahead(arg1, ((off64_t)arg3 << 32) | arg2, arg4));
8354 #else
8355 ret = get_errno(readahead(arg1, arg2, arg3));
8356 #endif
8357 break;
8358 #endif
8359 #ifdef CONFIG_ATTR
8360 #ifdef TARGET_NR_setxattr
8361 case TARGET_NR_listxattr:
8362 case TARGET_NR_llistxattr:
8363 {
8364 void *p, *b = 0;
8365 if (arg2) {
8366 b = lock_user(VERIFY_WRITE, arg2, arg3, 0);
8367 if (!b) {
8368 ret = -TARGET_EFAULT;
8369 break;
8370 }
8371 }
8372 p = lock_user_string(arg1);
8373 if (p) {
8374 if (num == TARGET_NR_listxattr) {
8375 ret = get_errno(listxattr(p, b, arg3));
8376 } else {
8377 ret = get_errno(llistxattr(p, b, arg3));
8378 }
8379 } else {
8380 ret = -TARGET_EFAULT;
8381 }
8382 unlock_user(p, arg1, 0);
8383 unlock_user(b, arg2, arg3);
8384 break;
8385 }
8386 case TARGET_NR_flistxattr:
8387 {
8388 void *b = 0;
8389 if (arg2) {
8390 b = lock_user(VERIFY_WRITE, arg2, arg3, 0);
8391 if (!b) {
8392 ret = -TARGET_EFAULT;
8393 break;
8394 }
8395 }
8396 ret = get_errno(flistxattr(arg1, b, arg3));
8397 unlock_user(b, arg2, arg3);
8398 break;
8399 }
8400 case TARGET_NR_setxattr:
8401 case TARGET_NR_lsetxattr:
8402 {
8403 void *p, *n, *v = 0;
8404 if (arg3) {
8405 v = lock_user(VERIFY_READ, arg3, arg4, 1);
8406 if (!v) {
8407 ret = -TARGET_EFAULT;
8408 break;
8409 }
8410 }
8411 p = lock_user_string(arg1);
8412 n = lock_user_string(arg2);
8413 if (p && n) {
8414 if (num == TARGET_NR_setxattr) {
8415 ret = get_errno(setxattr(p, n, v, arg4, arg5));
8416 } else {
8417 ret = get_errno(lsetxattr(p, n, v, arg4, arg5));
8418 }
8419 } else {
8420 ret = -TARGET_EFAULT;
8421 }
8422 unlock_user(p, arg1, 0);
8423 unlock_user(n, arg2, 0);
8424 unlock_user(v, arg3, 0);
8425 }
8426 break;
8427 case TARGET_NR_fsetxattr:
8428 {
8429 void *n, *v = 0;
8430 if (arg3) {
8431 v = lock_user(VERIFY_READ, arg3, arg4, 1);
8432 if (!v) {
8433 ret = -TARGET_EFAULT;
8434 break;
8435 }
8436 }
8437 n = lock_user_string(arg2);
8438 if (n) {
8439 ret = get_errno(fsetxattr(arg1, n, v, arg4, arg5));
8440 } else {
8441 ret = -TARGET_EFAULT;
8442 }
8443 unlock_user(n, arg2, 0);
8444 unlock_user(v, arg3, 0);
8445 }
8446 break;
8447 case TARGET_NR_getxattr:
8448 case TARGET_NR_lgetxattr:
8449 {
8450 void *p, *n, *v = 0;
8451 if (arg3) {
8452 v = lock_user(VERIFY_WRITE, arg3, arg4, 0);
8453 if (!v) {
8454 ret = -TARGET_EFAULT;
8455 break;
8456 }
8457 }
8458 p = lock_user_string(arg1);
8459 n = lock_user_string(arg2);
8460 if (p && n) {
8461 if (num == TARGET_NR_getxattr) {
8462 ret = get_errno(getxattr(p, n, v, arg4));
8463 } else {
8464 ret = get_errno(lgetxattr(p, n, v, arg4));
8465 }
8466 } else {
8467 ret = -TARGET_EFAULT;
8468 }
8469 unlock_user(p, arg1, 0);
8470 unlock_user(n, arg2, 0);
8471 unlock_user(v, arg3, arg4);
8472 }
8473 break;
8474 case TARGET_NR_fgetxattr:
8475 {
8476 void *n, *v = 0;
8477 if (arg3) {
8478 v = lock_user(VERIFY_WRITE, arg3, arg4, 0);
8479 if (!v) {
8480 ret = -TARGET_EFAULT;
8481 break;
8482 }
8483 }
8484 n = lock_user_string(arg2);
8485 if (n) {
8486 ret = get_errno(fgetxattr(arg1, n, v, arg4));
8487 } else {
8488 ret = -TARGET_EFAULT;
8489 }
8490 unlock_user(n, arg2, 0);
8491 unlock_user(v, arg3, arg4);
8492 }
8493 break;
8494 case TARGET_NR_removexattr:
8495 case TARGET_NR_lremovexattr:
8496 {
8497 void *p, *n;
8498 p = lock_user_string(arg1);
8499 n = lock_user_string(arg2);
8500 if (p && n) {
8501 if (num == TARGET_NR_removexattr) {
8502 ret = get_errno(removexattr(p, n));
8503 } else {
8504 ret = get_errno(lremovexattr(p, n));
8505 }
8506 } else {
8507 ret = -TARGET_EFAULT;
8508 }
8509 unlock_user(p, arg1, 0);
8510 unlock_user(n, arg2, 0);
8511 }
8512 break;
8513 case TARGET_NR_fremovexattr:
8514 {
8515 void *n;
8516 n = lock_user_string(arg2);
8517 if (n) {
8518 ret = get_errno(fremovexattr(arg1, n));
8519 } else {
8520 ret = -TARGET_EFAULT;
8521 }
8522 unlock_user(n, arg2, 0);
8523 }
8524 break;
8525 #endif
8526 #endif /* CONFIG_ATTR */
8527 #ifdef TARGET_NR_set_thread_area
8528 case TARGET_NR_set_thread_area:
8529 #if defined(TARGET_MIPS)
8530 ((CPUMIPSState *) cpu_env)->tls_value = arg1;
8531 ret = 0;
8532 break;
8533 #elif defined(TARGET_CRIS)
8534 if (arg1 & 0xff)
8535 ret = -TARGET_EINVAL;
8536 else {
8537 ((CPUCRISState *) cpu_env)->pregs[PR_PID] = arg1;
8538 ret = 0;
8539 }
8540 break;
8541 #elif defined(TARGET_I386) && defined(TARGET_ABI32)
8542 ret = do_set_thread_area(cpu_env, arg1);
8543 break;
8544 #elif defined(TARGET_M68K)
8545 {
8546 TaskState *ts = ((CPUArchState *)cpu_env)->opaque;
8547 ts->tp_value = arg1;
8548 ret = 0;
8549 break;
8550 }
8551 #else
8552 goto unimplemented_nowarn;
8553 #endif
8554 #endif
8555 #ifdef TARGET_NR_get_thread_area
8556 case TARGET_NR_get_thread_area:
8557 #if defined(TARGET_I386) && defined(TARGET_ABI32)
8558 ret = do_get_thread_area(cpu_env, arg1);
8559 break;
8560 #elif defined(TARGET_M68K)
8561 {
8562 TaskState *ts = ((CPUArchState *)cpu_env)->opaque;
8563 ret = ts->tp_value;
8564 break;
8565 }
8566 #else
8567 goto unimplemented_nowarn;
8568 #endif
8569 #endif
8570 #ifdef TARGET_NR_getdomainname
8571 case TARGET_NR_getdomainname:
8572 goto unimplemented_nowarn;
8573 #endif
8574
8575 #ifdef TARGET_NR_clock_gettime
8576 case TARGET_NR_clock_gettime:
8577 {
8578 struct timespec ts;
8579 ret = get_errno(clock_gettime(arg1, &ts));
8580 if (!is_error(ret)) {
8581 host_to_target_timespec(arg2, &ts);
8582 }
8583 break;
8584 }
8585 #endif
8586 #ifdef TARGET_NR_clock_getres
8587 case TARGET_NR_clock_getres:
8588 {
8589 struct timespec ts;
8590 ret = get_errno(clock_getres(arg1, &ts));
8591 if (!is_error(ret)) {
8592 host_to_target_timespec(arg2, &ts);
8593 }
8594 break;
8595 }
8596 #endif
8597 #ifdef TARGET_NR_clock_nanosleep
8598 case TARGET_NR_clock_nanosleep:
8599 {
8600 struct timespec ts;
8601 target_to_host_timespec(&ts, arg3);
8602 ret = get_errno(clock_nanosleep(arg1, arg2, &ts, arg4 ? &ts : NULL));
8603 if (arg4)
8604 host_to_target_timespec(arg4, &ts);
8605 break;
8606 }
8607 #endif
8608
8609 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
8610 case TARGET_NR_set_tid_address:
8611 ret = get_errno(set_tid_address((int *)g2h(arg1)));
8612 break;
8613 #endif
8614
8615 #if defined(TARGET_NR_tkill) && defined(__NR_tkill)
8616 case TARGET_NR_tkill:
8617 ret = get_errno(sys_tkill((int)arg1, target_to_host_signal(arg2)));
8618 break;
8619 #endif
8620
8621 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
8622 case TARGET_NR_tgkill:
8623 ret = get_errno(sys_tgkill((int)arg1, (int)arg2,
8624 target_to_host_signal(arg3)));
8625 break;
8626 #endif
8627
8628 #ifdef TARGET_NR_set_robust_list
8629 case TARGET_NR_set_robust_list:
8630 case TARGET_NR_get_robust_list:
8631 /* The ABI for supporting robust futexes has userspace pass
8632 * the kernel a pointer to a linked list which is updated by
8633 * userspace after the syscall; the list is walked by the kernel
8634 * when the thread exits. Since the linked list in QEMU guest
8635 * memory isn't a valid linked list for the host and we have
8636 * no way to reliably intercept the thread-death event, we can't
8637 * support these. Silently return ENOSYS so that guest userspace
8638 * falls back to a non-robust futex implementation (which should
8639 * be OK except in the corner case of the guest crashing while
8640 * holding a mutex that is shared with another process via
8641 * shared memory).
8642 */
8643 goto unimplemented_nowarn;
8644 #endif
8645
8646 #if defined(TARGET_NR_utimensat)
8647 case TARGET_NR_utimensat:
8648 {
8649 struct timespec *tsp, ts[2];
8650 if (!arg3) {
8651 tsp = NULL;
8652 } else {
8653 target_to_host_timespec(ts, arg3);
8654 target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec));
8655 tsp = ts;
8656 }
8657 if (!arg2)
8658 ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4));
8659 else {
8660 if (!(p = lock_user_string(arg2))) {
8661 ret = -TARGET_EFAULT;
8662 goto fail;
8663 }
8664 ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4));
8665 unlock_user(p, arg2, 0);
8666 }
8667 }
8668 break;
8669 #endif
8670 case TARGET_NR_futex:
8671 ret = do_futex(arg1, arg2, arg3, arg4, arg5, arg6);
8672 break;
8673 #if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
8674 case TARGET_NR_inotify_init:
8675 ret = get_errno(sys_inotify_init());
8676 break;
8677 #endif
8678 #ifdef CONFIG_INOTIFY1
8679 #if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
8680 case TARGET_NR_inotify_init1:
8681 ret = get_errno(sys_inotify_init1(arg1));
8682 break;
8683 #endif
8684 #endif
8685 #if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
8686 case TARGET_NR_inotify_add_watch:
8687 p = lock_user_string(arg2);
8688 ret = get_errno(sys_inotify_add_watch(arg1, path(p), arg3));
8689 unlock_user(p, arg2, 0);
8690 break;
8691 #endif
8692 #if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
8693 case TARGET_NR_inotify_rm_watch:
8694 ret = get_errno(sys_inotify_rm_watch(arg1, arg2));
8695 break;
8696 #endif
8697
8698 #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
8699 case TARGET_NR_mq_open:
8700 {
8701 struct mq_attr posix_mq_attr;
8702
8703 p = lock_user_string(arg1 - 1);
8704 if (arg4 != 0)
8705 copy_from_user_mq_attr (&posix_mq_attr, arg4);
8706 ret = get_errno(mq_open(p, arg2, arg3, &posix_mq_attr));
8707 unlock_user (p, arg1, 0);
8708 }
8709 break;
8710
8711 case TARGET_NR_mq_unlink:
8712 p = lock_user_string(arg1 - 1);
8713 ret = get_errno(mq_unlink(p));
8714 unlock_user (p, arg1, 0);
8715 break;
8716
8717 case TARGET_NR_mq_timedsend:
8718 {
8719 struct timespec ts;
8720
8721 p = lock_user (VERIFY_READ, arg2, arg3, 1);
8722 if (arg5 != 0) {
8723 target_to_host_timespec(&ts, arg5);
8724 ret = get_errno(mq_timedsend(arg1, p, arg3, arg4, &ts));
8725 host_to_target_timespec(arg5, &ts);
8726 }
8727 else
8728 ret = get_errno(mq_send(arg1, p, arg3, arg4));
8729 unlock_user (p, arg2, arg3);
8730 }
8731 break;
8732
8733 case TARGET_NR_mq_timedreceive:
8734 {
8735 struct timespec ts;
8736 unsigned int prio;
8737
8738 p = lock_user (VERIFY_READ, arg2, arg3, 1);
8739 if (arg5 != 0) {
8740 target_to_host_timespec(&ts, arg5);
8741 ret = get_errno(mq_timedreceive(arg1, p, arg3, &prio, &ts));
8742 host_to_target_timespec(arg5, &ts);
8743 }
8744 else
8745 ret = get_errno(mq_receive(arg1, p, arg3, &prio));
8746 unlock_user (p, arg2, arg3);
8747 if (arg4 != 0)
8748 put_user_u32(prio, arg4);
8749 }
8750 break;
8751
8752 /* Not implemented for now... */
8753 /* case TARGET_NR_mq_notify: */
8754 /* break; */
8755
8756 case TARGET_NR_mq_getsetattr:
8757 {
8758 struct mq_attr posix_mq_attr_in, posix_mq_attr_out;
8759 ret = 0;
8760 if (arg3 != 0) {
8761 ret = mq_getattr(arg1, &posix_mq_attr_out);
8762 copy_to_user_mq_attr(arg3, &posix_mq_attr_out);
8763 }
8764 if (arg2 != 0) {
8765 copy_from_user_mq_attr(&posix_mq_attr_in, arg2);
8766 ret |= mq_setattr(arg1, &posix_mq_attr_in, &posix_mq_attr_out);
8767 }
8768
8769 }
8770 break;
8771 #endif
8772
8773 #ifdef CONFIG_SPLICE
8774 #ifdef TARGET_NR_tee
8775 case TARGET_NR_tee:
8776 {
8777 ret = get_errno(tee(arg1,arg2,arg3,arg4));
8778 }
8779 break;
8780 #endif
8781 #ifdef TARGET_NR_splice
8782 case TARGET_NR_splice:
8783 {
8784 loff_t loff_in, loff_out;
8785 loff_t *ploff_in = NULL, *ploff_out = NULL;
8786 if(arg2) {
8787 get_user_u64(loff_in, arg2);
8788 ploff_in = &loff_in;
8789 }
8790 if(arg4) {
8791 get_user_u64(loff_out, arg2);
8792 ploff_out = &loff_out;
8793 }
8794 ret = get_errno(splice(arg1, ploff_in, arg3, ploff_out, arg5, arg6));
8795 }
8796 break;
8797 #endif
8798 #ifdef TARGET_NR_vmsplice
8799 case TARGET_NR_vmsplice:
8800 {
8801 struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
8802 if (vec != NULL) {
8803 ret = get_errno(vmsplice(arg1, vec, arg3, arg4));
8804 unlock_iovec(vec, arg2, arg3, 0);
8805 } else {
8806 ret = -host_to_target_errno(errno);
8807 }
8808 }
8809 break;
8810 #endif
8811 #endif /* CONFIG_SPLICE */
8812 #ifdef CONFIG_EVENTFD
8813 #if defined(TARGET_NR_eventfd)
8814 case TARGET_NR_eventfd:
8815 ret = get_errno(eventfd(arg1, 0));
8816 break;
8817 #endif
8818 #if defined(TARGET_NR_eventfd2)
8819 case TARGET_NR_eventfd2:
8820 {
8821 int host_flags = arg2 & (~(TARGET_O_NONBLOCK | TARGET_O_CLOEXEC));
8822 if (arg2 & TARGET_O_NONBLOCK) {
8823 host_flags |= O_NONBLOCK;
8824 }
8825 if (arg2 & TARGET_O_CLOEXEC) {
8826 host_flags |= O_CLOEXEC;
8827 }
8828 ret = get_errno(eventfd(arg1, host_flags));
8829 break;
8830 }
8831 #endif
8832 #endif /* CONFIG_EVENTFD */
8833 #if defined(CONFIG_FALLOCATE) && defined(TARGET_NR_fallocate)
8834 case TARGET_NR_fallocate:
8835 #if TARGET_ABI_BITS == 32
8836 ret = get_errno(fallocate(arg1, arg2, target_offset64(arg3, arg4),
8837 target_offset64(arg5, arg6)));
8838 #else
8839 ret = get_errno(fallocate(arg1, arg2, arg3, arg4));
8840 #endif
8841 break;
8842 #endif
8843 #if defined(CONFIG_SYNC_FILE_RANGE)
8844 #if defined(TARGET_NR_sync_file_range)
8845 case TARGET_NR_sync_file_range:
8846 #if TARGET_ABI_BITS == 32
8847 #if defined(TARGET_MIPS)
8848 ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
8849 target_offset64(arg5, arg6), arg7));
8850 #else
8851 ret = get_errno(sync_file_range(arg1, target_offset64(arg2, arg3),
8852 target_offset64(arg4, arg5), arg6));
8853 #endif /* !TARGET_MIPS */
8854 #else
8855 ret = get_errno(sync_file_range(arg1, arg2, arg3, arg4));
8856 #endif
8857 break;
8858 #endif
8859 #if defined(TARGET_NR_sync_file_range2)
8860 case TARGET_NR_sync_file_range2:
8861 /* This is like sync_file_range but the arguments are reordered */
8862 #if TARGET_ABI_BITS == 32
8863 ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
8864 target_offset64(arg5, arg6), arg2));
8865 #else
8866 ret = get_errno(sync_file_range(arg1, arg3, arg4, arg2));
8867 #endif
8868 break;
8869 #endif
8870 #endif
8871 #if defined(CONFIG_EPOLL)
8872 #if defined(TARGET_NR_epoll_create)
8873 case TARGET_NR_epoll_create:
8874 ret = get_errno(epoll_create(arg1));
8875 break;
8876 #endif
8877 #if defined(TARGET_NR_epoll_create1) && defined(CONFIG_EPOLL_CREATE1)
8878 case TARGET_NR_epoll_create1:
8879 ret = get_errno(epoll_create1(arg1));
8880 break;
8881 #endif
8882 #if defined(TARGET_NR_epoll_ctl)
8883 case TARGET_NR_epoll_ctl:
8884 {
8885 struct epoll_event ep;
8886 struct epoll_event *epp = 0;
8887 if (arg4) {
8888 struct target_epoll_event *target_ep;
8889 if (!lock_user_struct(VERIFY_READ, target_ep, arg4, 1)) {
8890 goto efault;
8891 }
8892 ep.events = tswap32(target_ep->events);
8893 /* The epoll_data_t union is just opaque data to the kernel,
8894 * so we transfer all 64 bits across and need not worry what
8895 * actual data type it is.
8896 */
8897 ep.data.u64 = tswap64(target_ep->data.u64);
8898 unlock_user_struct(target_ep, arg4, 0);
8899 epp = &ep;
8900 }
8901 ret = get_errno(epoll_ctl(arg1, arg2, arg3, epp));
8902 break;
8903 }
8904 #endif
8905
8906 #if defined(TARGET_NR_epoll_pwait) && defined(CONFIG_EPOLL_PWAIT)
8907 #define IMPLEMENT_EPOLL_PWAIT
8908 #endif
8909 #if defined(TARGET_NR_epoll_wait) || defined(IMPLEMENT_EPOLL_PWAIT)
8910 #if defined(TARGET_NR_epoll_wait)
8911 case TARGET_NR_epoll_wait:
8912 #endif
8913 #if defined(IMPLEMENT_EPOLL_PWAIT)
8914 case TARGET_NR_epoll_pwait:
8915 #endif
8916 {
8917 struct target_epoll_event *target_ep;
8918 struct epoll_event *ep;
8919 int epfd = arg1;
8920 int maxevents = arg3;
8921 int timeout = arg4;
8922
8923 target_ep = lock_user(VERIFY_WRITE, arg2,
8924 maxevents * sizeof(struct target_epoll_event), 1);
8925 if (!target_ep) {
8926 goto efault;
8927 }
8928
8929 ep = alloca(maxevents * sizeof(struct epoll_event));
8930
8931 switch (num) {
8932 #if defined(IMPLEMENT_EPOLL_PWAIT)
8933 case TARGET_NR_epoll_pwait:
8934 {
8935 target_sigset_t *target_set;
8936 sigset_t _set, *set = &_set;
8937
8938 if (arg5) {
8939 target_set = lock_user(VERIFY_READ, arg5,
8940 sizeof(target_sigset_t), 1);
8941 if (!target_set) {
8942 unlock_user(target_ep, arg2, 0);
8943 goto efault;
8944 }
8945 target_to_host_sigset(set, target_set);
8946 unlock_user(target_set, arg5, 0);
8947 } else {
8948 set = NULL;
8949 }
8950
8951 ret = get_errno(epoll_pwait(epfd, ep, maxevents, timeout, set));
8952 break;
8953 }
8954 #endif
8955 #if defined(TARGET_NR_epoll_wait)
8956 case TARGET_NR_epoll_wait:
8957 ret = get_errno(epoll_wait(epfd, ep, maxevents, timeout));
8958 break;
8959 #endif
8960 default:
8961 ret = -TARGET_ENOSYS;
8962 }
8963 if (!is_error(ret)) {
8964 int i;
8965 for (i = 0; i < ret; i++) {
8966 target_ep[i].events = tswap32(ep[i].events);
8967 target_ep[i].data.u64 = tswap64(ep[i].data.u64);
8968 }
8969 }
8970 unlock_user(target_ep, arg2, ret * sizeof(struct target_epoll_event));
8971 break;
8972 }
8973 #endif
8974 #endif
8975 #ifdef TARGET_NR_prlimit64
8976 case TARGET_NR_prlimit64:
8977 {
8978 /* args: pid, resource number, ptr to new rlimit, ptr to old rlimit */
8979 struct target_rlimit64 *target_rnew, *target_rold;
8980 struct host_rlimit64 rnew, rold, *rnewp = 0;
8981 if (arg3) {
8982 if (!lock_user_struct(VERIFY_READ, target_rnew, arg3, 1)) {
8983 goto efault;
8984 }
8985 rnew.rlim_cur = tswap64(target_rnew->rlim_cur);
8986 rnew.rlim_max = tswap64(target_rnew->rlim_max);
8987 unlock_user_struct(target_rnew, arg3, 0);
8988 rnewp = &rnew;
8989 }
8990
8991 ret = get_errno(sys_prlimit64(arg1, arg2, rnewp, arg4 ? &rold : 0));
8992 if (!is_error(ret) && arg4) {
8993 if (!lock_user_struct(VERIFY_WRITE, target_rold, arg4, 1)) {
8994 goto efault;
8995 }
8996 target_rold->rlim_cur = tswap64(rold.rlim_cur);
8997 target_rold->rlim_max = tswap64(rold.rlim_max);
8998 unlock_user_struct(target_rold, arg4, 1);
8999 }
9000 break;
9001 }
9002 #endif
9003 #ifdef TARGET_NR_gethostname
9004 case TARGET_NR_gethostname:
9005 {
9006 char *name = lock_user(VERIFY_WRITE, arg1, arg2, 0);
9007 if (name) {
9008 ret = get_errno(gethostname(name, arg2));
9009 unlock_user(name, arg1, arg2);
9010 } else {
9011 ret = -TARGET_EFAULT;
9012 }
9013 break;
9014 }
9015 #endif
9016 default:
9017 unimplemented:
9018 gemu_log("qemu: Unsupported syscall: %d\n", num);
9019 #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list)
9020 unimplemented_nowarn:
9021 #endif
9022 ret = -TARGET_ENOSYS;
9023 break;
9024 }
9025 fail:
9026 #ifdef DEBUG
9027 gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret);
9028 #endif
9029 if(do_strace)
9030 print_syscall_ret(num, ret);
9031 return ret;
9032 efault:
9033 ret = -TARGET_EFAULT;
9034 goto fail;
9035 }
AR7 emulation for QEMU