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configure: Make NPTL non-optional
[qemu.git] / linux-user / syscall.c
blob5bd57d0a720d7856a2e286ef4c7477d6d5baa072
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 #endif
1036 }
1037
1038 if (put_user_s32(host_pipe[0], pipedes)
1039 || put_user_s32(host_pipe[1], pipedes + sizeof(host_pipe[0])))
1040 return -TARGET_EFAULT;
1041 return get_errno(ret);
1042 }
1043
1044 static inline abi_long target_to_host_ip_mreq(struct ip_mreqn *mreqn,
1045 abi_ulong target_addr,
1046 socklen_t len)
1047 {
1048 struct target_ip_mreqn *target_smreqn;
1049
1050 target_smreqn = lock_user(VERIFY_READ, target_addr, len, 1);
1051 if (!target_smreqn)
1052 return -TARGET_EFAULT;
1053 mreqn->imr_multiaddr.s_addr = target_smreqn->imr_multiaddr.s_addr;
1054 mreqn->imr_address.s_addr = target_smreqn->imr_address.s_addr;
1055 if (len == sizeof(struct target_ip_mreqn))
1056 mreqn->imr_ifindex = tswapal(target_smreqn->imr_ifindex);
1057 unlock_user(target_smreqn, target_addr, 0);
1058
1059 return 0;
1060 }
1061
1062 static inline abi_long target_to_host_sockaddr(struct sockaddr *addr,
1063 abi_ulong target_addr,
1064 socklen_t len)
1065 {
1066 const socklen_t unix_maxlen = sizeof (struct sockaddr_un);
1067 sa_family_t sa_family;
1068 struct target_sockaddr *target_saddr;
1069
1070 target_saddr = lock_user(VERIFY_READ, target_addr, len, 1);
1071 if (!target_saddr)
1072 return -TARGET_EFAULT;
1073
1074 sa_family = tswap16(target_saddr->sa_family);
1075
1076 /* Oops. The caller might send a incomplete sun_path; sun_path
1077 * must be terminated by \0 (see the manual page), but
1078 * unfortunately it is quite common to specify sockaddr_un
1079 * length as "strlen(x->sun_path)" while it should be
1080 * "strlen(...) + 1". We'll fix that here if needed.
1081 * Linux kernel has a similar feature.
1082 */
1083
1084 if (sa_family == AF_UNIX) {
1085 if (len < unix_maxlen && len > 0) {
1086 char *cp = (char*)target_saddr;
1087
1088 if ( cp[len-1] && !cp[len] )
1089 len++;
1090 }
1091 if (len > unix_maxlen)
1092 len = unix_maxlen;
1093 }
1094
1095 memcpy(addr, target_saddr, len);
1096 addr->sa_family = sa_family;
1097 unlock_user(target_saddr, target_addr, 0);
1098
1099 return 0;
1100 }
1101
1102 static inline abi_long host_to_target_sockaddr(abi_ulong target_addr,
1103 struct sockaddr *addr,
1104 socklen_t len)
1105 {
1106 struct target_sockaddr *target_saddr;
1107
1108 target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0);
1109 if (!target_saddr)
1110 return -TARGET_EFAULT;
1111 memcpy(target_saddr, addr, len);
1112 target_saddr->sa_family = tswap16(addr->sa_family);
1113 unlock_user(target_saddr, target_addr, len);
1114
1115 return 0;
1116 }
1117
1118 static inline abi_long target_to_host_cmsg(struct msghdr *msgh,
1119 struct target_msghdr *target_msgh)
1120 {
1121 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
1122 abi_long msg_controllen;
1123 abi_ulong target_cmsg_addr;
1124 struct target_cmsghdr *target_cmsg;
1125 socklen_t space = 0;
1126
1127 msg_controllen = tswapal(target_msgh->msg_controllen);
1128 if (msg_controllen < sizeof (struct target_cmsghdr))
1129 goto the_end;
1130 target_cmsg_addr = tswapal(target_msgh->msg_control);
1131 target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1);
1132 if (!target_cmsg)
1133 return -TARGET_EFAULT;
1134
1135 while (cmsg && target_cmsg) {
1136 void *data = CMSG_DATA(cmsg);
1137 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1138
1139 int len = tswapal(target_cmsg->cmsg_len)
1140 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
1141
1142 space += CMSG_SPACE(len);
1143 if (space > msgh->msg_controllen) {
1144 space -= CMSG_SPACE(len);
1145 gemu_log("Host cmsg overflow\n");
1146 break;
1147 }
1148
1149 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
1150 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
1151 cmsg->cmsg_len = CMSG_LEN(len);
1152
1153 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
1154 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
1155 memcpy(data, target_data, len);
1156 } else {
1157 int *fd = (int *)data;
1158 int *target_fd = (int *)target_data;
1159 int i, numfds = len / sizeof(int);
1160
1161 for (i = 0; i < numfds; i++)
1162 fd[i] = tswap32(target_fd[i]);
1163 }
1164
1165 cmsg = CMSG_NXTHDR(msgh, cmsg);
1166 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
1167 }
1168 unlock_user(target_cmsg, target_cmsg_addr, 0);
1169 the_end:
1170 msgh->msg_controllen = space;
1171 return 0;
1172 }
1173
1174 static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh,
1175 struct msghdr *msgh)
1176 {
1177 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
1178 abi_long msg_controllen;
1179 abi_ulong target_cmsg_addr;
1180 struct target_cmsghdr *target_cmsg;
1181 socklen_t space = 0;
1182
1183 msg_controllen = tswapal(target_msgh->msg_controllen);
1184 if (msg_controllen < sizeof (struct target_cmsghdr))
1185 goto the_end;
1186 target_cmsg_addr = tswapal(target_msgh->msg_control);
1187 target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0);
1188 if (!target_cmsg)
1189 return -TARGET_EFAULT;
1190
1191 while (cmsg && target_cmsg) {
1192 void *data = CMSG_DATA(cmsg);
1193 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1194
1195 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
1196
1197 space += TARGET_CMSG_SPACE(len);
1198 if (space > msg_controllen) {
1199 space -= TARGET_CMSG_SPACE(len);
1200 gemu_log("Target cmsg overflow\n");
1201 break;
1202 }
1203
1204 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
1205 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
1206 target_cmsg->cmsg_len = tswapal(TARGET_CMSG_LEN(len));
1207
1208 if ((cmsg->cmsg_level == TARGET_SOL_SOCKET) &&
1209 (cmsg->cmsg_type == SCM_RIGHTS)) {
1210 int *fd = (int *)data;
1211 int *target_fd = (int *)target_data;
1212 int i, numfds = len / sizeof(int);
1213
1214 for (i = 0; i < numfds; i++)
1215 target_fd[i] = tswap32(fd[i]);
1216 } else if ((cmsg->cmsg_level == TARGET_SOL_SOCKET) &&
1217 (cmsg->cmsg_type == SO_TIMESTAMP) &&
1218 (len == sizeof(struct timeval))) {
1219 /* copy struct timeval to target */
1220 struct timeval *tv = (struct timeval *)data;
1221 struct target_timeval *target_tv =
1222 (struct target_timeval *)target_data;
1223
1224 target_tv->tv_sec = tswapal(tv->tv_sec);
1225 target_tv->tv_usec = tswapal(tv->tv_usec);
1226 } else {
1227 gemu_log("Unsupported ancillary data: %d/%d\n",
1228 cmsg->cmsg_level, cmsg->cmsg_type);
1229 memcpy(target_data, data, len);
1230 }
1231
1232 cmsg = CMSG_NXTHDR(msgh, cmsg);
1233 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
1234 }
1235 unlock_user(target_cmsg, target_cmsg_addr, space);
1236 the_end:
1237 target_msgh->msg_controllen = tswapal(space);
1238 return 0;
1239 }
1240
1241 /* do_setsockopt() Must return target values and target errnos. */
1242 static abi_long do_setsockopt(int sockfd, int level, int optname,
1243 abi_ulong optval_addr, socklen_t optlen)
1244 {
1245 abi_long ret;
1246 int val;
1247 struct ip_mreqn *ip_mreq;
1248 struct ip_mreq_source *ip_mreq_source;
1249
1250 switch(level) {
1251 case SOL_TCP:
1252 /* TCP options all take an 'int' value. */
1253 if (optlen < sizeof(uint32_t))
1254 return -TARGET_EINVAL;
1255
1256 if (get_user_u32(val, optval_addr))
1257 return -TARGET_EFAULT;
1258 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
1259 break;
1260 case SOL_IP:
1261 switch(optname) {
1262 case IP_TOS:
1263 case IP_TTL:
1264 case IP_HDRINCL:
1265 case IP_ROUTER_ALERT:
1266 case IP_RECVOPTS:
1267 case IP_RETOPTS:
1268 case IP_PKTINFO:
1269 case IP_MTU_DISCOVER:
1270 case IP_RECVERR:
1271 case IP_RECVTOS:
1272 #ifdef IP_FREEBIND
1273 case IP_FREEBIND:
1274 #endif
1275 case IP_MULTICAST_TTL:
1276 case IP_MULTICAST_LOOP:
1277 val = 0;
1278 if (optlen >= sizeof(uint32_t)) {
1279 if (get_user_u32(val, optval_addr))
1280 return -TARGET_EFAULT;
1281 } else if (optlen >= 1) {
1282 if (get_user_u8(val, optval_addr))
1283 return -TARGET_EFAULT;
1284 }
1285 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
1286 break;
1287 case IP_ADD_MEMBERSHIP:
1288 case IP_DROP_MEMBERSHIP:
1289 if (optlen < sizeof (struct target_ip_mreq) ||
1290 optlen > sizeof (struct target_ip_mreqn))
1291 return -TARGET_EINVAL;
1292
1293 ip_mreq = (struct ip_mreqn *) alloca(optlen);
1294 target_to_host_ip_mreq(ip_mreq, optval_addr, optlen);
1295 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq, optlen));
1296 break;
1297
1298 case IP_BLOCK_SOURCE:
1299 case IP_UNBLOCK_SOURCE:
1300 case IP_ADD_SOURCE_MEMBERSHIP:
1301 case IP_DROP_SOURCE_MEMBERSHIP:
1302 if (optlen != sizeof (struct target_ip_mreq_source))
1303 return -TARGET_EINVAL;
1304
1305 ip_mreq_source = lock_user(VERIFY_READ, optval_addr, optlen, 1);
1306 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq_source, optlen));
1307 unlock_user (ip_mreq_source, optval_addr, 0);
1308 break;
1309
1310 default:
1311 goto unimplemented;
1312 }
1313 break;
1314 case SOL_RAW:
1315 switch (optname) {
1316 case ICMP_FILTER:
1317 /* struct icmp_filter takes an u32 value */
1318 if (optlen < sizeof(uint32_t)) {
1319 return -TARGET_EINVAL;
1320 }
1321
1322 if (get_user_u32(val, optval_addr)) {
1323 return -TARGET_EFAULT;
1324 }
1325 ret = get_errno(setsockopt(sockfd, level, optname,
1326 &val, sizeof(val)));
1327 break;
1328
1329 default:
1330 goto unimplemented;
1331 }
1332 break;
1333 case TARGET_SOL_SOCKET:
1334 switch (optname) {
1335 case TARGET_SO_RCVTIMEO:
1336 {
1337 struct timeval tv;
1338
1339 optname = SO_RCVTIMEO;
1340
1341 set_timeout:
1342 if (optlen != sizeof(struct target_timeval)) {
1343 return -TARGET_EINVAL;
1344 }
1345
1346 if (copy_from_user_timeval(&tv, optval_addr)) {
1347 return -TARGET_EFAULT;
1348 }
1349
1350 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname,
1351 &tv, sizeof(tv)));
1352 return ret;
1353 }
1354 case TARGET_SO_SNDTIMEO:
1355 optname = SO_SNDTIMEO;
1356 goto set_timeout;
1357 /* Options with 'int' argument. */
1358 case TARGET_SO_DEBUG:
1359 optname = SO_DEBUG;
1360 break;
1361 case TARGET_SO_REUSEADDR:
1362 optname = SO_REUSEADDR;
1363 break;
1364 case TARGET_SO_TYPE:
1365 optname = SO_TYPE;
1366 break;
1367 case TARGET_SO_ERROR:
1368 optname = SO_ERROR;
1369 break;
1370 case TARGET_SO_DONTROUTE:
1371 optname = SO_DONTROUTE;
1372 break;
1373 case TARGET_SO_BROADCAST:
1374 optname = SO_BROADCAST;
1375 break;
1376 case TARGET_SO_SNDBUF:
1377 optname = SO_SNDBUF;
1378 break;
1379 case TARGET_SO_RCVBUF:
1380 optname = SO_RCVBUF;
1381 break;
1382 case TARGET_SO_KEEPALIVE:
1383 optname = SO_KEEPALIVE;
1384 break;
1385 case TARGET_SO_OOBINLINE:
1386 optname = SO_OOBINLINE;
1387 break;
1388 case TARGET_SO_NO_CHECK:
1389 optname = SO_NO_CHECK;
1390 break;
1391 case TARGET_SO_PRIORITY:
1392 optname = SO_PRIORITY;
1393 break;
1394 #ifdef SO_BSDCOMPAT
1395 case TARGET_SO_BSDCOMPAT:
1396 optname = SO_BSDCOMPAT;
1397 break;
1398 #endif
1399 case TARGET_SO_PASSCRED:
1400 optname = SO_PASSCRED;
1401 break;
1402 case TARGET_SO_TIMESTAMP:
1403 optname = SO_TIMESTAMP;
1404 break;
1405 case TARGET_SO_RCVLOWAT:
1406 optname = SO_RCVLOWAT;
1407 break;
1408 break;
1409 default:
1410 goto unimplemented;
1411 }
1412 if (optlen < sizeof(uint32_t))
1413 return -TARGET_EINVAL;
1414
1415 if (get_user_u32(val, optval_addr))
1416 return -TARGET_EFAULT;
1417 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
1418 break;
1419 default:
1420 unimplemented:
1421 gemu_log("Unsupported setsockopt level=%d optname=%d\n", level, optname);
1422 ret = -TARGET_ENOPROTOOPT;
1423 }
1424 return ret;
1425 }
1426
1427 /* do_getsockopt() Must return target values and target errnos. */
1428 static abi_long do_getsockopt(int sockfd, int level, int optname,
1429 abi_ulong optval_addr, abi_ulong optlen)
1430 {
1431 abi_long ret;
1432 int len, val;
1433 socklen_t lv;
1434
1435 switch(level) {
1436 case TARGET_SOL_SOCKET:
1437 level = SOL_SOCKET;
1438 switch (optname) {
1439 /* These don't just return a single integer */
1440 case TARGET_SO_LINGER:
1441 case TARGET_SO_RCVTIMEO:
1442 case TARGET_SO_SNDTIMEO:
1443 case TARGET_SO_PEERNAME:
1444 goto unimplemented;
1445 case TARGET_SO_PEERCRED: {
1446 struct ucred cr;
1447 socklen_t crlen;
1448 struct target_ucred *tcr;
1449
1450 if (get_user_u32(len, optlen)) {
1451 return -TARGET_EFAULT;
1452 }
1453 if (len < 0) {
1454 return -TARGET_EINVAL;
1455 }
1456
1457 crlen = sizeof(cr);
1458 ret = get_errno(getsockopt(sockfd, level, SO_PEERCRED,
1459 &cr, &crlen));
1460 if (ret < 0) {
1461 return ret;
1462 }
1463 if (len > crlen) {
1464 len = crlen;
1465 }
1466 if (!lock_user_struct(VERIFY_WRITE, tcr, optval_addr, 0)) {
1467 return -TARGET_EFAULT;
1468 }
1469 __put_user(cr.pid, &tcr->pid);
1470 __put_user(cr.uid, &tcr->uid);
1471 __put_user(cr.gid, &tcr->gid);
1472 unlock_user_struct(tcr, optval_addr, 1);
1473 if (put_user_u32(len, optlen)) {
1474 return -TARGET_EFAULT;
1475 }
1476 break;
1477 }
1478 /* Options with 'int' argument. */
1479 case TARGET_SO_DEBUG:
1480 optname = SO_DEBUG;
1481 goto int_case;
1482 case TARGET_SO_REUSEADDR:
1483 optname = SO_REUSEADDR;
1484 goto int_case;
1485 case TARGET_SO_TYPE:
1486 optname = SO_TYPE;
1487 goto int_case;
1488 case TARGET_SO_ERROR:
1489 optname = SO_ERROR;
1490 goto int_case;
1491 case TARGET_SO_DONTROUTE:
1492 optname = SO_DONTROUTE;
1493 goto int_case;
1494 case TARGET_SO_BROADCAST:
1495 optname = SO_BROADCAST;
1496 goto int_case;
1497 case TARGET_SO_SNDBUF:
1498 optname = SO_SNDBUF;
1499 goto int_case;
1500 case TARGET_SO_RCVBUF:
1501 optname = SO_RCVBUF;
1502 goto int_case;
1503 case TARGET_SO_KEEPALIVE:
1504 optname = SO_KEEPALIVE;
1505 goto int_case;
1506 case TARGET_SO_OOBINLINE:
1507 optname = SO_OOBINLINE;
1508 goto int_case;
1509 case TARGET_SO_NO_CHECK:
1510 optname = SO_NO_CHECK;
1511 goto int_case;
1512 case TARGET_SO_PRIORITY:
1513 optname = SO_PRIORITY;
1514 goto int_case;
1515 #ifdef SO_BSDCOMPAT
1516 case TARGET_SO_BSDCOMPAT:
1517 optname = SO_BSDCOMPAT;
1518 goto int_case;
1519 #endif
1520 case TARGET_SO_PASSCRED:
1521 optname = SO_PASSCRED;
1522 goto int_case;
1523 case TARGET_SO_TIMESTAMP:
1524 optname = SO_TIMESTAMP;
1525 goto int_case;
1526 case TARGET_SO_RCVLOWAT:
1527 optname = SO_RCVLOWAT;
1528 goto int_case;
1529 default:
1530 goto int_case;
1531 }
1532 break;
1533 case SOL_TCP:
1534 /* TCP options all take an 'int' value. */
1535 int_case:
1536 if (get_user_u32(len, optlen))
1537 return -TARGET_EFAULT;
1538 if (len < 0)
1539 return -TARGET_EINVAL;
1540 lv = sizeof(lv);
1541 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
1542 if (ret < 0)
1543 return ret;
1544 if (len > lv)
1545 len = lv;
1546 if (len == 4) {
1547 if (put_user_u32(val, optval_addr))
1548 return -TARGET_EFAULT;
1549 } else {
1550 if (put_user_u8(val, optval_addr))
1551 return -TARGET_EFAULT;
1552 }
1553 if (put_user_u32(len, optlen))
1554 return -TARGET_EFAULT;
1555 break;
1556 case SOL_IP:
1557 switch(optname) {
1558 case IP_TOS:
1559 case IP_TTL:
1560 case IP_HDRINCL:
1561 case IP_ROUTER_ALERT:
1562 case IP_RECVOPTS:
1563 case IP_RETOPTS:
1564 case IP_PKTINFO:
1565 case IP_MTU_DISCOVER:
1566 case IP_RECVERR:
1567 case IP_RECVTOS:
1568 #ifdef IP_FREEBIND
1569 case IP_FREEBIND:
1570 #endif
1571 case IP_MULTICAST_TTL:
1572 case IP_MULTICAST_LOOP:
1573 if (get_user_u32(len, optlen))
1574 return -TARGET_EFAULT;
1575 if (len < 0)
1576 return -TARGET_EINVAL;
1577 lv = sizeof(lv);
1578 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
1579 if (ret < 0)
1580 return ret;
1581 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
1582 len = 1;
1583 if (put_user_u32(len, optlen)
1584 || put_user_u8(val, optval_addr))
1585 return -TARGET_EFAULT;
1586 } else {
1587 if (len > sizeof(int))
1588 len = sizeof(int);
1589 if (put_user_u32(len, optlen)
1590 || put_user_u32(val, optval_addr))
1591 return -TARGET_EFAULT;
1592 }
1593 break;
1594 default:
1595 ret = -TARGET_ENOPROTOOPT;
1596 break;
1597 }
1598 break;
1599 default:
1600 unimplemented:
1601 gemu_log("getsockopt level=%d optname=%d not yet supported\n",
1602 level, optname);
1603 ret = -TARGET_EOPNOTSUPP;
1604 break;
1605 }
1606 return ret;
1607 }
1608
1609 static struct iovec *lock_iovec(int type, abi_ulong target_addr,
1610 int count, int copy)
1611 {
1612 struct target_iovec *target_vec;
1613 struct iovec *vec;
1614 abi_ulong total_len, max_len;
1615 int i;
1616
1617 if (count == 0) {
1618 errno = 0;
1619 return NULL;
1620 }
1621 if (count < 0 || count > IOV_MAX) {
1622 errno = EINVAL;
1623 return NULL;
1624 }
1625
1626 vec = calloc(count, sizeof(struct iovec));
1627 if (vec == NULL) {
1628 errno = ENOMEM;
1629 return NULL;
1630 }
1631
1632 target_vec = lock_user(VERIFY_READ, target_addr,
1633 count * sizeof(struct target_iovec), 1);
1634 if (target_vec == NULL) {
1635 errno = EFAULT;
1636 goto fail2;
1637 }
1638
1639 /* ??? If host page size > target page size, this will result in a
1640 value larger than what we can actually support. */
1641 max_len = 0x7fffffff & TARGET_PAGE_MASK;
1642 total_len = 0;
1643
1644 for (i = 0; i < count; i++) {
1645 abi_ulong base = tswapal(target_vec[i].iov_base);
1646 abi_long len = tswapal(target_vec[i].iov_len);
1647
1648 if (len < 0) {
1649 errno = EINVAL;
1650 goto fail;
1651 } else if (len == 0) {
1652 /* Zero length pointer is ignored. */
1653 vec[i].iov_base = 0;
1654 } else {
1655 vec[i].iov_base = lock_user(type, base, len, copy);
1656 if (!vec[i].iov_base) {
1657 errno = EFAULT;
1658 goto fail;
1659 }
1660 if (len > max_len - total_len) {
1661 len = max_len - total_len;
1662 }
1663 }
1664 vec[i].iov_len = len;
1665 total_len += len;
1666 }
1667
1668 unlock_user(target_vec, target_addr, 0);
1669 return vec;
1670
1671 fail:
1672 free(vec);
1673 fail2:
1674 unlock_user(target_vec, target_addr, 0);
1675 return NULL;
1676 }
1677
1678 static void unlock_iovec(struct iovec *vec, abi_ulong target_addr,
1679 int count, int copy)
1680 {
1681 struct target_iovec *target_vec;
1682 int i;
1683
1684 target_vec = lock_user(VERIFY_READ, target_addr,
1685 count * sizeof(struct target_iovec), 1);
1686 if (target_vec) {
1687 for (i = 0; i < count; i++) {
1688 abi_ulong base = tswapal(target_vec[i].iov_base);
1689 abi_long len = tswapal(target_vec[i].iov_base);
1690 if (len < 0) {
1691 break;
1692 }
1693 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
1694 }
1695 unlock_user(target_vec, target_addr, 0);
1696 }
1697
1698 free(vec);
1699 }
1700
1701 static inline void target_to_host_sock_type(int *type)
1702 {
1703 int host_type = 0;
1704 int target_type = *type;
1705
1706 switch (target_type & TARGET_SOCK_TYPE_MASK) {
1707 case TARGET_SOCK_DGRAM:
1708 host_type = SOCK_DGRAM;
1709 break;
1710 case TARGET_SOCK_STREAM:
1711 host_type = SOCK_STREAM;
1712 break;
1713 default:
1714 host_type = target_type & TARGET_SOCK_TYPE_MASK;
1715 break;
1716 }
1717 if (target_type & TARGET_SOCK_CLOEXEC) {
1718 host_type |= SOCK_CLOEXEC;
1719 }
1720 if (target_type & TARGET_SOCK_NONBLOCK) {
1721 host_type |= SOCK_NONBLOCK;
1722 }
1723 *type = host_type;
1724 }
1725
1726 /* do_socket() Must return target values and target errnos. */
1727 static abi_long do_socket(int domain, int type, int protocol)
1728 {
1729 target_to_host_sock_type(&type);
1730
1731 if (domain == PF_NETLINK)
1732 return -EAFNOSUPPORT; /* do not NETLINK socket connections possible */
1733 return get_errno(socket(domain, type, protocol));
1734 }
1735
1736 /* do_bind() Must return target values and target errnos. */
1737 static abi_long do_bind(int sockfd, abi_ulong target_addr,
1738 socklen_t addrlen)
1739 {
1740 void *addr;
1741 abi_long ret;
1742
1743 if ((int)addrlen < 0) {
1744 return -TARGET_EINVAL;
1745 }
1746
1747 addr = alloca(addrlen+1);
1748
1749 ret = target_to_host_sockaddr(addr, target_addr, addrlen);
1750 if (ret)
1751 return ret;
1752
1753 return get_errno(bind(sockfd, addr, addrlen));
1754 }
1755
1756 /* do_connect() Must return target values and target errnos. */
1757 static abi_long do_connect(int sockfd, abi_ulong target_addr,
1758 socklen_t addrlen)
1759 {
1760 void *addr;
1761 abi_long ret;
1762
1763 if ((int)addrlen < 0) {
1764 return -TARGET_EINVAL;
1765 }
1766
1767 addr = alloca(addrlen);
1768
1769 ret = target_to_host_sockaddr(addr, target_addr, addrlen);
1770 if (ret)
1771 return ret;
1772
1773 return get_errno(connect(sockfd, addr, addrlen));
1774 }
1775
1776 /* do_sendrecvmsg() Must return target values and target errnos. */
1777 static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg,
1778 int flags, int send)
1779 {
1780 abi_long ret, len;
1781 struct target_msghdr *msgp;
1782 struct msghdr msg;
1783 int count;
1784 struct iovec *vec;
1785 abi_ulong target_vec;
1786
1787 /* FIXME */
1788 if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE,
1789 msgp,
1790 target_msg,
1791 send ? 1 : 0))
1792 return -TARGET_EFAULT;
1793 if (msgp->msg_name) {
1794 msg.msg_namelen = tswap32(msgp->msg_namelen);
1795 msg.msg_name = alloca(msg.msg_namelen);
1796 ret = target_to_host_sockaddr(msg.msg_name, tswapal(msgp->msg_name),
1797 msg.msg_namelen);
1798 if (ret) {
1799 goto out2;
1800 }
1801 } else {
1802 msg.msg_name = NULL;
1803 msg.msg_namelen = 0;
1804 }
1805 msg.msg_controllen = 2 * tswapal(msgp->msg_controllen);
1806 msg.msg_control = alloca(msg.msg_controllen);
1807 msg.msg_flags = tswap32(msgp->msg_flags);
1808
1809 count = tswapal(msgp->msg_iovlen);
1810 target_vec = tswapal(msgp->msg_iov);
1811 vec = lock_iovec(send ? VERIFY_READ : VERIFY_WRITE,
1812 target_vec, count, send);
1813 if (vec == NULL) {
1814 ret = -host_to_target_errno(errno);
1815 goto out2;
1816 }
1817 msg.msg_iovlen = count;
1818 msg.msg_iov = vec;
1819
1820 if (send) {
1821 ret = target_to_host_cmsg(&msg, msgp);
1822 if (ret == 0)
1823 ret = get_errno(sendmsg(fd, &msg, flags));
1824 } else {
1825 ret = get_errno(recvmsg(fd, &msg, flags));
1826 if (!is_error(ret)) {
1827 len = ret;
1828 ret = host_to_target_cmsg(msgp, &msg);
1829 if (!is_error(ret)) {
1830 msgp->msg_namelen = tswap32(msg.msg_namelen);
1831 if (msg.msg_name != NULL) {
1832 ret = host_to_target_sockaddr(tswapal(msgp->msg_name),
1833 msg.msg_name, msg.msg_namelen);
1834 if (ret) {
1835 goto out;
1836 }
1837 }
1838
1839 ret = len;
1840 }
1841 }
1842 }
1843
1844 out:
1845 unlock_iovec(vec, target_vec, count, !send);
1846 out2:
1847 unlock_user_struct(msgp, target_msg, send ? 0 : 1);
1848 return ret;
1849 }
1850
1851 /* If we don't have a system accept4() then just call accept.
1852 * The callsites to do_accept4() will ensure that they don't
1853 * pass a non-zero flags argument in this config.
1854 */
1855 #ifndef CONFIG_ACCEPT4
1856 static inline int accept4(int sockfd, struct sockaddr *addr,
1857 socklen_t *addrlen, int flags)
1858 {
1859 assert(flags == 0);
1860 return accept(sockfd, addr, addrlen);
1861 }
1862 #endif
1863
1864 /* do_accept4() Must return target values and target errnos. */
1865 static abi_long do_accept4(int fd, abi_ulong target_addr,
1866 abi_ulong target_addrlen_addr, int flags)
1867 {
1868 socklen_t addrlen;
1869 void *addr;
1870 abi_long ret;
1871
1872 if (target_addr == 0) {
1873 return get_errno(accept4(fd, NULL, NULL, flags));
1874 }
1875
1876 /* linux returns EINVAL if addrlen pointer is invalid */
1877 if (get_user_u32(addrlen, target_addrlen_addr))
1878 return -TARGET_EINVAL;
1879
1880 if ((int)addrlen < 0) {
1881 return -TARGET_EINVAL;
1882 }
1883
1884 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
1885 return -TARGET_EINVAL;
1886
1887 addr = alloca(addrlen);
1888
1889 ret = get_errno(accept4(fd, addr, &addrlen, flags));
1890 if (!is_error(ret)) {
1891 host_to_target_sockaddr(target_addr, addr, addrlen);
1892 if (put_user_u32(addrlen, target_addrlen_addr))
1893 ret = -TARGET_EFAULT;
1894 }
1895 return ret;
1896 }
1897
1898 /* do_getpeername() Must return target values and target errnos. */
1899 static abi_long do_getpeername(int fd, abi_ulong target_addr,
1900 abi_ulong target_addrlen_addr)
1901 {
1902 socklen_t addrlen;
1903 void *addr;
1904 abi_long ret;
1905
1906 if (get_user_u32(addrlen, target_addrlen_addr))
1907 return -TARGET_EFAULT;
1908
1909 if ((int)addrlen < 0) {
1910 return -TARGET_EINVAL;
1911 }
1912
1913 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
1914 return -TARGET_EFAULT;
1915
1916 addr = alloca(addrlen);
1917
1918 ret = get_errno(getpeername(fd, addr, &addrlen));
1919 if (!is_error(ret)) {
1920 host_to_target_sockaddr(target_addr, addr, addrlen);
1921 if (put_user_u32(addrlen, target_addrlen_addr))
1922 ret = -TARGET_EFAULT;
1923 }
1924 return ret;
1925 }
1926
1927 /* do_getsockname() Must return target values and target errnos. */
1928 static abi_long do_getsockname(int fd, abi_ulong target_addr,
1929 abi_ulong target_addrlen_addr)
1930 {
1931 socklen_t addrlen;
1932 void *addr;
1933 abi_long ret;
1934
1935 if (get_user_u32(addrlen, target_addrlen_addr))
1936 return -TARGET_EFAULT;
1937
1938 if ((int)addrlen < 0) {
1939 return -TARGET_EINVAL;
1940 }
1941
1942 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
1943 return -TARGET_EFAULT;
1944
1945 addr = alloca(addrlen);
1946
1947 ret = get_errno(getsockname(fd, addr, &addrlen));
1948 if (!is_error(ret)) {
1949 host_to_target_sockaddr(target_addr, addr, addrlen);
1950 if (put_user_u32(addrlen, target_addrlen_addr))
1951 ret = -TARGET_EFAULT;
1952 }
1953 return ret;
1954 }
1955
1956 /* do_socketpair() Must return target values and target errnos. */
1957 static abi_long do_socketpair(int domain, int type, int protocol,
1958 abi_ulong target_tab_addr)
1959 {
1960 int tab[2];
1961 abi_long ret;
1962
1963 target_to_host_sock_type(&type);
1964
1965 ret = get_errno(socketpair(domain, type, protocol, tab));
1966 if (!is_error(ret)) {
1967 if (put_user_s32(tab[0], target_tab_addr)
1968 || put_user_s32(tab[1], target_tab_addr + sizeof(tab[0])))
1969 ret = -TARGET_EFAULT;
1970 }
1971 return ret;
1972 }
1973
1974 /* do_sendto() Must return target values and target errnos. */
1975 static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags,
1976 abi_ulong target_addr, socklen_t addrlen)
1977 {
1978 void *addr;
1979 void *host_msg;
1980 abi_long ret;
1981
1982 if ((int)addrlen < 0) {
1983 return -TARGET_EINVAL;
1984 }
1985
1986 host_msg = lock_user(VERIFY_READ, msg, len, 1);
1987 if (!host_msg)
1988 return -TARGET_EFAULT;
1989 if (target_addr) {
1990 addr = alloca(addrlen);
1991 ret = target_to_host_sockaddr(addr, target_addr, addrlen);
1992 if (ret) {
1993 unlock_user(host_msg, msg, 0);
1994 return ret;
1995 }
1996 ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen));
1997 } else {
1998 ret = get_errno(send(fd, host_msg, len, flags));
1999 }
2000 unlock_user(host_msg, msg, 0);
2001 return ret;
2002 }
2003
2004 /* do_recvfrom() Must return target values and target errnos. */
2005 static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags,
2006 abi_ulong target_addr,
2007 abi_ulong target_addrlen)
2008 {
2009 socklen_t addrlen;
2010 void *addr;
2011 void *host_msg;
2012 abi_long ret;
2013
2014 host_msg = lock_user(VERIFY_WRITE, msg, len, 0);
2015 if (!host_msg)
2016 return -TARGET_EFAULT;
2017 if (target_addr) {
2018 if (get_user_u32(addrlen, target_addrlen)) {
2019 ret = -TARGET_EFAULT;
2020 goto fail;
2021 }
2022 if ((int)addrlen < 0) {
2023 ret = -TARGET_EINVAL;
2024 goto fail;
2025 }
2026 addr = alloca(addrlen);
2027 ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen));
2028 } else {
2029 addr = NULL; /* To keep compiler quiet. */
2030 ret = get_errno(qemu_recv(fd, host_msg, len, flags));
2031 }
2032 if (!is_error(ret)) {
2033 if (target_addr) {
2034 host_to_target_sockaddr(target_addr, addr, addrlen);
2035 if (put_user_u32(addrlen, target_addrlen)) {
2036 ret = -TARGET_EFAULT;
2037 goto fail;
2038 }
2039 }
2040 unlock_user(host_msg, msg, len);
2041 } else {
2042 fail:
2043 unlock_user(host_msg, msg, 0);
2044 }
2045 return ret;
2046 }
2047
2048 #ifdef TARGET_NR_socketcall
2049 /* do_socketcall() Must return target values and target errnos. */
2050 static abi_long do_socketcall(int num, abi_ulong vptr)
2051 {
2052 abi_long ret;
2053 const int n = sizeof(abi_ulong);
2054
2055 switch(num) {
2056 case SOCKOP_socket:
2057 {
2058 abi_ulong domain, type, protocol;
2059
2060 if (get_user_ual(domain, vptr)
2061 || get_user_ual(type, vptr + n)
2062 || get_user_ual(protocol, vptr + 2 * n))
2063 return -TARGET_EFAULT;
2064
2065 ret = do_socket(domain, type, protocol);
2066 }
2067 break;
2068 case SOCKOP_bind:
2069 {
2070 abi_ulong sockfd;
2071 abi_ulong target_addr;
2072 socklen_t addrlen;
2073
2074 if (get_user_ual(sockfd, vptr)
2075 || get_user_ual(target_addr, vptr + n)
2076 || get_user_ual(addrlen, vptr + 2 * n))
2077 return -TARGET_EFAULT;
2078
2079 ret = do_bind(sockfd, target_addr, addrlen);
2080 }
2081 break;
2082 case SOCKOP_connect:
2083 {
2084 abi_ulong sockfd;
2085 abi_ulong target_addr;
2086 socklen_t addrlen;
2087
2088 if (get_user_ual(sockfd, vptr)
2089 || get_user_ual(target_addr, vptr + n)
2090 || get_user_ual(addrlen, vptr + 2 * n))
2091 return -TARGET_EFAULT;
2092
2093 ret = do_connect(sockfd, target_addr, addrlen);
2094 }
2095 break;
2096 case SOCKOP_listen:
2097 {
2098 abi_ulong sockfd, backlog;
2099
2100 if (get_user_ual(sockfd, vptr)
2101 || get_user_ual(backlog, vptr + n))
2102 return -TARGET_EFAULT;
2103
2104 ret = get_errno(listen(sockfd, backlog));
2105 }
2106 break;
2107 case SOCKOP_accept:
2108 {
2109 abi_ulong sockfd;
2110 abi_ulong target_addr, target_addrlen;
2111
2112 if (get_user_ual(sockfd, vptr)
2113 || get_user_ual(target_addr, vptr + n)
2114 || get_user_ual(target_addrlen, vptr + 2 * n))
2115 return -TARGET_EFAULT;
2116
2117 ret = do_accept4(sockfd, target_addr, target_addrlen, 0);
2118 }
2119 break;
2120 case SOCKOP_getsockname:
2121 {
2122 abi_ulong sockfd;
2123 abi_ulong target_addr, target_addrlen;
2124
2125 if (get_user_ual(sockfd, vptr)
2126 || get_user_ual(target_addr, vptr + n)
2127 || get_user_ual(target_addrlen, vptr + 2 * n))
2128 return -TARGET_EFAULT;
2129
2130 ret = do_getsockname(sockfd, target_addr, target_addrlen);
2131 }
2132 break;
2133 case SOCKOP_getpeername:
2134 {
2135 abi_ulong sockfd;
2136 abi_ulong target_addr, target_addrlen;
2137
2138 if (get_user_ual(sockfd, vptr)
2139 || get_user_ual(target_addr, vptr + n)
2140 || get_user_ual(target_addrlen, vptr + 2 * n))
2141 return -TARGET_EFAULT;
2142
2143 ret = do_getpeername(sockfd, target_addr, target_addrlen);
2144 }
2145 break;
2146 case SOCKOP_socketpair:
2147 {
2148 abi_ulong domain, type, protocol;
2149 abi_ulong tab;
2150
2151 if (get_user_ual(domain, vptr)
2152 || get_user_ual(type, vptr + n)
2153 || get_user_ual(protocol, vptr + 2 * n)
2154 || get_user_ual(tab, vptr + 3 * n))
2155 return -TARGET_EFAULT;
2156
2157 ret = do_socketpair(domain, type, protocol, tab);
2158 }
2159 break;
2160 case SOCKOP_send:
2161 {
2162 abi_ulong sockfd;
2163 abi_ulong msg;
2164 size_t len;
2165 abi_ulong flags;
2166
2167 if (get_user_ual(sockfd, vptr)
2168 || get_user_ual(msg, vptr + n)
2169 || get_user_ual(len, vptr + 2 * n)
2170 || get_user_ual(flags, vptr + 3 * n))
2171 return -TARGET_EFAULT;
2172
2173 ret = do_sendto(sockfd, msg, len, flags, 0, 0);
2174 }
2175 break;
2176 case SOCKOP_recv:
2177 {
2178 abi_ulong sockfd;
2179 abi_ulong msg;
2180 size_t len;
2181 abi_ulong flags;
2182
2183 if (get_user_ual(sockfd, vptr)
2184 || get_user_ual(msg, vptr + n)
2185 || get_user_ual(len, vptr + 2 * n)
2186 || get_user_ual(flags, vptr + 3 * n))
2187 return -TARGET_EFAULT;
2188
2189 ret = do_recvfrom(sockfd, msg, len, flags, 0, 0);
2190 }
2191 break;
2192 case SOCKOP_sendto:
2193 {
2194 abi_ulong sockfd;
2195 abi_ulong msg;
2196 size_t len;
2197 abi_ulong flags;
2198 abi_ulong addr;
2199 socklen_t addrlen;
2200
2201 if (get_user_ual(sockfd, vptr)
2202 || get_user_ual(msg, vptr + n)
2203 || get_user_ual(len, vptr + 2 * n)
2204 || get_user_ual(flags, vptr + 3 * n)
2205 || get_user_ual(addr, vptr + 4 * n)
2206 || get_user_ual(addrlen, vptr + 5 * n))
2207 return -TARGET_EFAULT;
2208
2209 ret = do_sendto(sockfd, msg, len, flags, addr, addrlen);
2210 }
2211 break;
2212 case SOCKOP_recvfrom:
2213 {
2214 abi_ulong sockfd;
2215 abi_ulong msg;
2216 size_t len;
2217 abi_ulong flags;
2218 abi_ulong addr;
2219 socklen_t addrlen;
2220
2221 if (get_user_ual(sockfd, vptr)
2222 || get_user_ual(msg, vptr + n)
2223 || get_user_ual(len, vptr + 2 * n)
2224 || get_user_ual(flags, vptr + 3 * n)
2225 || get_user_ual(addr, vptr + 4 * n)
2226 || get_user_ual(addrlen, vptr + 5 * n))
2227 return -TARGET_EFAULT;
2228
2229 ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen);
2230 }
2231 break;
2232 case SOCKOP_shutdown:
2233 {
2234 abi_ulong sockfd, how;
2235
2236 if (get_user_ual(sockfd, vptr)
2237 || get_user_ual(how, vptr + n))
2238 return -TARGET_EFAULT;
2239
2240 ret = get_errno(shutdown(sockfd, how));
2241 }
2242 break;
2243 case SOCKOP_sendmsg:
2244 case SOCKOP_recvmsg:
2245 {
2246 abi_ulong fd;
2247 abi_ulong target_msg;
2248 abi_ulong flags;
2249
2250 if (get_user_ual(fd, vptr)
2251 || get_user_ual(target_msg, vptr + n)
2252 || get_user_ual(flags, vptr + 2 * n))
2253 return -TARGET_EFAULT;
2254
2255 ret = do_sendrecvmsg(fd, target_msg, flags,
2256 (num == SOCKOP_sendmsg));
2257 }
2258 break;
2259 case SOCKOP_setsockopt:
2260 {
2261 abi_ulong sockfd;
2262 abi_ulong level;
2263 abi_ulong optname;
2264 abi_ulong optval;
2265 socklen_t optlen;
2266
2267 if (get_user_ual(sockfd, vptr)
2268 || get_user_ual(level, vptr + n)
2269 || get_user_ual(optname, vptr + 2 * n)
2270 || get_user_ual(optval, vptr + 3 * n)
2271 || get_user_ual(optlen, vptr + 4 * n))
2272 return -TARGET_EFAULT;
2273
2274 ret = do_setsockopt(sockfd, level, optname, optval, optlen);
2275 }
2276 break;
2277 case SOCKOP_getsockopt:
2278 {
2279 abi_ulong sockfd;
2280 abi_ulong level;
2281 abi_ulong optname;
2282 abi_ulong optval;
2283 socklen_t optlen;
2284
2285 if (get_user_ual(sockfd, vptr)
2286 || get_user_ual(level, vptr + n)
2287 || get_user_ual(optname, vptr + 2 * n)
2288 || get_user_ual(optval, vptr + 3 * n)
2289 || get_user_ual(optlen, vptr + 4 * n))
2290 return -TARGET_EFAULT;
2291
2292 ret = do_getsockopt(sockfd, level, optname, optval, optlen);
2293 }
2294 break;
2295 default:
2296 gemu_log("Unsupported socketcall: %d\n", num);
2297 ret = -TARGET_ENOSYS;
2298 break;
2299 }
2300 return ret;
2301 }
2302 #endif
2303
2304 #define N_SHM_REGIONS 32
2305
2306 static struct shm_region {
2307 abi_ulong start;
2308 abi_ulong size;
2309 } shm_regions[N_SHM_REGIONS];
2310
2311 struct target_ipc_perm
2312 {
2313 abi_long __key;
2314 abi_ulong uid;
2315 abi_ulong gid;
2316 abi_ulong cuid;
2317 abi_ulong cgid;
2318 unsigned short int mode;
2319 unsigned short int __pad1;
2320 unsigned short int __seq;
2321 unsigned short int __pad2;
2322 abi_ulong __unused1;
2323 abi_ulong __unused2;
2324 };
2325
2326 struct target_semid_ds
2327 {
2328 struct target_ipc_perm sem_perm;
2329 abi_ulong sem_otime;
2330 abi_ulong __unused1;
2331 abi_ulong sem_ctime;
2332 abi_ulong __unused2;
2333 abi_ulong sem_nsems;
2334 abi_ulong __unused3;
2335 abi_ulong __unused4;
2336 };
2337
2338 static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip,
2339 abi_ulong target_addr)
2340 {
2341 struct target_ipc_perm *target_ip;
2342 struct target_semid_ds *target_sd;
2343
2344 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
2345 return -TARGET_EFAULT;
2346 target_ip = &(target_sd->sem_perm);
2347 host_ip->__key = tswapal(target_ip->__key);
2348 host_ip->uid = tswapal(target_ip->uid);
2349 host_ip->gid = tswapal(target_ip->gid);
2350 host_ip->cuid = tswapal(target_ip->cuid);
2351 host_ip->cgid = tswapal(target_ip->cgid);
2352 host_ip->mode = tswap16(target_ip->mode);
2353 unlock_user_struct(target_sd, target_addr, 0);
2354 return 0;
2355 }
2356
2357 static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr,
2358 struct ipc_perm *host_ip)
2359 {
2360 struct target_ipc_perm *target_ip;
2361 struct target_semid_ds *target_sd;
2362
2363 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
2364 return -TARGET_EFAULT;
2365 target_ip = &(target_sd->sem_perm);
2366 target_ip->__key = tswapal(host_ip->__key);
2367 target_ip->uid = tswapal(host_ip->uid);
2368 target_ip->gid = tswapal(host_ip->gid);
2369 target_ip->cuid = tswapal(host_ip->cuid);
2370 target_ip->cgid = tswapal(host_ip->cgid);
2371 target_ip->mode = tswap16(host_ip->mode);
2372 unlock_user_struct(target_sd, target_addr, 1);
2373 return 0;
2374 }
2375
2376 static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd,
2377 abi_ulong target_addr)
2378 {
2379 struct target_semid_ds *target_sd;
2380
2381 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
2382 return -TARGET_EFAULT;
2383 if (target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr))
2384 return -TARGET_EFAULT;
2385 host_sd->sem_nsems = tswapal(target_sd->sem_nsems);
2386 host_sd->sem_otime = tswapal(target_sd->sem_otime);
2387 host_sd->sem_ctime = tswapal(target_sd->sem_ctime);
2388 unlock_user_struct(target_sd, target_addr, 0);
2389 return 0;
2390 }
2391
2392 static inline abi_long host_to_target_semid_ds(abi_ulong target_addr,
2393 struct semid_ds *host_sd)
2394 {
2395 struct target_semid_ds *target_sd;
2396
2397 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
2398 return -TARGET_EFAULT;
2399 if (host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm)))
2400 return -TARGET_EFAULT;
2401 target_sd->sem_nsems = tswapal(host_sd->sem_nsems);
2402 target_sd->sem_otime = tswapal(host_sd->sem_otime);
2403 target_sd->sem_ctime = tswapal(host_sd->sem_ctime);
2404 unlock_user_struct(target_sd, target_addr, 1);
2405 return 0;
2406 }
2407
2408 struct target_seminfo {
2409 int semmap;
2410 int semmni;
2411 int semmns;
2412 int semmnu;
2413 int semmsl;
2414 int semopm;
2415 int semume;
2416 int semusz;
2417 int semvmx;
2418 int semaem;
2419 };
2420
2421 static inline abi_long host_to_target_seminfo(abi_ulong target_addr,
2422 struct seminfo *host_seminfo)
2423 {
2424 struct target_seminfo *target_seminfo;
2425 if (!lock_user_struct(VERIFY_WRITE, target_seminfo, target_addr, 0))
2426 return -TARGET_EFAULT;
2427 __put_user(host_seminfo->semmap, &target_seminfo->semmap);
2428 __put_user(host_seminfo->semmni, &target_seminfo->semmni);
2429 __put_user(host_seminfo->semmns, &target_seminfo->semmns);
2430 __put_user(host_seminfo->semmnu, &target_seminfo->semmnu);
2431 __put_user(host_seminfo->semmsl, &target_seminfo->semmsl);
2432 __put_user(host_seminfo->semopm, &target_seminfo->semopm);
2433 __put_user(host_seminfo->semume, &target_seminfo->semume);
2434 __put_user(host_seminfo->semusz, &target_seminfo->semusz);
2435 __put_user(host_seminfo->semvmx, &target_seminfo->semvmx);
2436 __put_user(host_seminfo->semaem, &target_seminfo->semaem);
2437 unlock_user_struct(target_seminfo, target_addr, 1);
2438 return 0;
2439 }
2440
2441 union semun {
2442 int val;
2443 struct semid_ds *buf;
2444 unsigned short *array;
2445 struct seminfo *__buf;
2446 };
2447
2448 union target_semun {
2449 int val;
2450 abi_ulong buf;
2451 abi_ulong array;
2452 abi_ulong __buf;
2453 };
2454
2455 static inline abi_long target_to_host_semarray(int semid, unsigned short **host_array,
2456 abi_ulong target_addr)
2457 {
2458 int nsems;
2459 unsigned short *array;
2460 union semun semun;
2461 struct semid_ds semid_ds;
2462 int i, ret;
2463
2464 semun.buf = &semid_ds;
2465
2466 ret = semctl(semid, 0, IPC_STAT, semun);
2467 if (ret == -1)
2468 return get_errno(ret);
2469
2470 nsems = semid_ds.sem_nsems;
2471
2472 *host_array = malloc(nsems*sizeof(unsigned short));
2473 array = lock_user(VERIFY_READ, target_addr,
2474 nsems*sizeof(unsigned short), 1);
2475 if (!array)
2476 return -TARGET_EFAULT;
2477
2478 for(i=0; i<nsems; i++) {
2479 __get_user((*host_array)[i], &array[i]);
2480 }
2481 unlock_user(array, target_addr, 0);
2482
2483 return 0;
2484 }
2485
2486 static inline abi_long host_to_target_semarray(int semid, abi_ulong target_addr,
2487 unsigned short **host_array)
2488 {
2489 int nsems;
2490 unsigned short *array;
2491 union semun semun;
2492 struct semid_ds semid_ds;
2493 int i, ret;
2494
2495 semun.buf = &semid_ds;
2496
2497 ret = semctl(semid, 0, IPC_STAT, semun);
2498 if (ret == -1)
2499 return get_errno(ret);
2500
2501 nsems = semid_ds.sem_nsems;
2502
2503 array = lock_user(VERIFY_WRITE, target_addr,
2504 nsems*sizeof(unsigned short), 0);
2505 if (!array)
2506 return -TARGET_EFAULT;
2507
2508 for(i=0; i<nsems; i++) {
2509 __put_user((*host_array)[i], &array[i]);
2510 }
2511 free(*host_array);
2512 unlock_user(array, target_addr, 1);
2513
2514 return 0;
2515 }
2516
2517 static inline abi_long do_semctl(int semid, int semnum, int cmd,
2518 union target_semun target_su)
2519 {
2520 union semun arg;
2521 struct semid_ds dsarg;
2522 unsigned short *array = NULL;
2523 struct seminfo seminfo;
2524 abi_long ret = -TARGET_EINVAL;
2525 abi_long err;
2526 cmd &= 0xff;
2527
2528 switch( cmd ) {
2529 case GETVAL:
2530 case SETVAL:
2531 arg.val = tswap32(target_su.val);
2532 ret = get_errno(semctl(semid, semnum, cmd, arg));
2533 target_su.val = tswap32(arg.val);
2534 break;
2535 case GETALL:
2536 case SETALL:
2537 err = target_to_host_semarray(semid, &array, target_su.array);
2538 if (err)
2539 return err;
2540 arg.array = array;
2541 ret = get_errno(semctl(semid, semnum, cmd, arg));
2542 err = host_to_target_semarray(semid, target_su.array, &array);
2543 if (err)
2544 return err;
2545 break;
2546 case IPC_STAT:
2547 case IPC_SET:
2548 case SEM_STAT:
2549 err = target_to_host_semid_ds(&dsarg, target_su.buf);
2550 if (err)
2551 return err;
2552 arg.buf = &dsarg;
2553 ret = get_errno(semctl(semid, semnum, cmd, arg));
2554 err = host_to_target_semid_ds(target_su.buf, &dsarg);
2555 if (err)
2556 return err;
2557 break;
2558 case IPC_INFO:
2559 case SEM_INFO:
2560 arg.__buf = &seminfo;
2561 ret = get_errno(semctl(semid, semnum, cmd, arg));
2562 err = host_to_target_seminfo(target_su.__buf, &seminfo);
2563 if (err)
2564 return err;
2565 break;
2566 case IPC_RMID:
2567 case GETPID:
2568 case GETNCNT:
2569 case GETZCNT:
2570 ret = get_errno(semctl(semid, semnum, cmd, NULL));
2571 break;
2572 }
2573
2574 return ret;
2575 }
2576
2577 struct target_sembuf {
2578 unsigned short sem_num;
2579 short sem_op;
2580 short sem_flg;
2581 };
2582
2583 static inline abi_long target_to_host_sembuf(struct sembuf *host_sembuf,
2584 abi_ulong target_addr,
2585 unsigned nsops)
2586 {
2587 struct target_sembuf *target_sembuf;
2588 int i;
2589
2590 target_sembuf = lock_user(VERIFY_READ, target_addr,
2591 nsops*sizeof(struct target_sembuf), 1);
2592 if (!target_sembuf)
2593 return -TARGET_EFAULT;
2594
2595 for(i=0; i<nsops; i++) {
2596 __get_user(host_sembuf[i].sem_num, &target_sembuf[i].sem_num);
2597 __get_user(host_sembuf[i].sem_op, &target_sembuf[i].sem_op);
2598 __get_user(host_sembuf[i].sem_flg, &target_sembuf[i].sem_flg);
2599 }
2600
2601 unlock_user(target_sembuf, target_addr, 0);
2602
2603 return 0;
2604 }
2605
2606 static inline abi_long do_semop(int semid, abi_long ptr, unsigned nsops)
2607 {
2608 struct sembuf sops[nsops];
2609
2610 if (target_to_host_sembuf(sops, ptr, nsops))
2611 return -TARGET_EFAULT;
2612
2613 return get_errno(semop(semid, sops, nsops));
2614 }
2615
2616 struct target_msqid_ds
2617 {
2618 struct target_ipc_perm msg_perm;
2619 abi_ulong msg_stime;
2620 #if TARGET_ABI_BITS == 32
2621 abi_ulong __unused1;
2622 #endif
2623 abi_ulong msg_rtime;
2624 #if TARGET_ABI_BITS == 32
2625 abi_ulong __unused2;
2626 #endif
2627 abi_ulong msg_ctime;
2628 #if TARGET_ABI_BITS == 32
2629 abi_ulong __unused3;
2630 #endif
2631 abi_ulong __msg_cbytes;
2632 abi_ulong msg_qnum;
2633 abi_ulong msg_qbytes;
2634 abi_ulong msg_lspid;
2635 abi_ulong msg_lrpid;
2636 abi_ulong __unused4;
2637 abi_ulong __unused5;
2638 };
2639
2640 static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md,
2641 abi_ulong target_addr)
2642 {
2643 struct target_msqid_ds *target_md;
2644
2645 if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1))
2646 return -TARGET_EFAULT;
2647 if (target_to_host_ipc_perm(&(host_md->msg_perm),target_addr))
2648 return -TARGET_EFAULT;
2649 host_md->msg_stime = tswapal(target_md->msg_stime);
2650 host_md->msg_rtime = tswapal(target_md->msg_rtime);
2651 host_md->msg_ctime = tswapal(target_md->msg_ctime);
2652 host_md->__msg_cbytes = tswapal(target_md->__msg_cbytes);
2653 host_md->msg_qnum = tswapal(target_md->msg_qnum);
2654 host_md->msg_qbytes = tswapal(target_md->msg_qbytes);
2655 host_md->msg_lspid = tswapal(target_md->msg_lspid);
2656 host_md->msg_lrpid = tswapal(target_md->msg_lrpid);
2657 unlock_user_struct(target_md, target_addr, 0);
2658 return 0;
2659 }
2660
2661 static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr,
2662 struct msqid_ds *host_md)
2663 {
2664 struct target_msqid_ds *target_md;
2665
2666 if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0))
2667 return -TARGET_EFAULT;
2668 if (host_to_target_ipc_perm(target_addr,&(host_md->msg_perm)))
2669 return -TARGET_EFAULT;
2670 target_md->msg_stime = tswapal(host_md->msg_stime);
2671 target_md->msg_rtime = tswapal(host_md->msg_rtime);
2672 target_md->msg_ctime = tswapal(host_md->msg_ctime);
2673 target_md->__msg_cbytes = tswapal(host_md->__msg_cbytes);
2674 target_md->msg_qnum = tswapal(host_md->msg_qnum);
2675 target_md->msg_qbytes = tswapal(host_md->msg_qbytes);
2676 target_md->msg_lspid = tswapal(host_md->msg_lspid);
2677 target_md->msg_lrpid = tswapal(host_md->msg_lrpid);
2678 unlock_user_struct(target_md, target_addr, 1);
2679 return 0;
2680 }
2681
2682 struct target_msginfo {
2683 int msgpool;
2684 int msgmap;
2685 int msgmax;
2686 int msgmnb;
2687 int msgmni;
2688 int msgssz;
2689 int msgtql;
2690 unsigned short int msgseg;
2691 };
2692
2693 static inline abi_long host_to_target_msginfo(abi_ulong target_addr,
2694 struct msginfo *host_msginfo)
2695 {
2696 struct target_msginfo *target_msginfo;
2697 if (!lock_user_struct(VERIFY_WRITE, target_msginfo, target_addr, 0))
2698 return -TARGET_EFAULT;
2699 __put_user(host_msginfo->msgpool, &target_msginfo->msgpool);
2700 __put_user(host_msginfo->msgmap, &target_msginfo->msgmap);
2701 __put_user(host_msginfo->msgmax, &target_msginfo->msgmax);
2702 __put_user(host_msginfo->msgmnb, &target_msginfo->msgmnb);
2703 __put_user(host_msginfo->msgmni, &target_msginfo->msgmni);
2704 __put_user(host_msginfo->msgssz, &target_msginfo->msgssz);
2705 __put_user(host_msginfo->msgtql, &target_msginfo->msgtql);
2706 __put_user(host_msginfo->msgseg, &target_msginfo->msgseg);
2707 unlock_user_struct(target_msginfo, target_addr, 1);
2708 return 0;
2709 }
2710
2711 static inline abi_long do_msgctl(int msgid, int cmd, abi_long ptr)
2712 {
2713 struct msqid_ds dsarg;
2714 struct msginfo msginfo;
2715 abi_long ret = -TARGET_EINVAL;
2716
2717 cmd &= 0xff;
2718
2719 switch (cmd) {
2720 case IPC_STAT:
2721 case IPC_SET:
2722 case MSG_STAT:
2723 if (target_to_host_msqid_ds(&dsarg,ptr))
2724 return -TARGET_EFAULT;
2725 ret = get_errno(msgctl(msgid, cmd, &dsarg));
2726 if (host_to_target_msqid_ds(ptr,&dsarg))
2727 return -TARGET_EFAULT;
2728 break;
2729 case IPC_RMID:
2730 ret = get_errno(msgctl(msgid, cmd, NULL));
2731 break;
2732 case IPC_INFO:
2733 case MSG_INFO:
2734 ret = get_errno(msgctl(msgid, cmd, (struct msqid_ds *)&msginfo));
2735 if (host_to_target_msginfo(ptr, &msginfo))
2736 return -TARGET_EFAULT;
2737 break;
2738 }
2739
2740 return ret;
2741 }
2742
2743 struct target_msgbuf {
2744 abi_long mtype;
2745 char mtext[1];
2746 };
2747
2748 static inline abi_long do_msgsnd(int msqid, abi_long msgp,
2749 unsigned int msgsz, int msgflg)
2750 {
2751 struct target_msgbuf *target_mb;
2752 struct msgbuf *host_mb;
2753 abi_long ret = 0;
2754
2755 if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0))
2756 return -TARGET_EFAULT;
2757 host_mb = malloc(msgsz+sizeof(long));
2758 host_mb->mtype = (abi_long) tswapal(target_mb->mtype);
2759 memcpy(host_mb->mtext, target_mb->mtext, msgsz);
2760 ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg));
2761 free(host_mb);
2762 unlock_user_struct(target_mb, msgp, 0);
2763
2764 return ret;
2765 }
2766
2767 static inline abi_long do_msgrcv(int msqid, abi_long msgp,
2768 unsigned int msgsz, abi_long msgtyp,
2769 int msgflg)
2770 {
2771 struct target_msgbuf *target_mb;
2772 char *target_mtext;
2773 struct msgbuf *host_mb;
2774 abi_long ret = 0;
2775
2776 if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0))
2777 return -TARGET_EFAULT;
2778
2779 host_mb = g_malloc(msgsz+sizeof(long));
2780 ret = get_errno(msgrcv(msqid, host_mb, msgsz, msgtyp, msgflg));
2781
2782 if (ret > 0) {
2783 abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong);
2784 target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0);
2785 if (!target_mtext) {
2786 ret = -TARGET_EFAULT;
2787 goto end;
2788 }
2789 memcpy(target_mb->mtext, host_mb->mtext, ret);
2790 unlock_user(target_mtext, target_mtext_addr, ret);
2791 }
2792
2793 target_mb->mtype = tswapal(host_mb->mtype);
2794
2795 end:
2796 if (target_mb)
2797 unlock_user_struct(target_mb, msgp, 1);
2798 g_free(host_mb);
2799 return ret;
2800 }
2801
2802 struct target_shmid_ds
2803 {
2804 struct target_ipc_perm shm_perm;
2805 abi_ulong shm_segsz;
2806 abi_ulong shm_atime;
2807 #if TARGET_ABI_BITS == 32
2808 abi_ulong __unused1;
2809 #endif
2810 abi_ulong shm_dtime;
2811 #if TARGET_ABI_BITS == 32
2812 abi_ulong __unused2;
2813 #endif
2814 abi_ulong shm_ctime;
2815 #if TARGET_ABI_BITS == 32
2816 abi_ulong __unused3;
2817 #endif
2818 int shm_cpid;
2819 int shm_lpid;
2820 abi_ulong shm_nattch;
2821 unsigned long int __unused4;
2822 unsigned long int __unused5;
2823 };
2824
2825 static inline abi_long target_to_host_shmid_ds(struct shmid_ds *host_sd,
2826 abi_ulong target_addr)
2827 {
2828 struct target_shmid_ds *target_sd;
2829
2830 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
2831 return -TARGET_EFAULT;
2832 if (target_to_host_ipc_perm(&(host_sd->shm_perm), target_addr))
2833 return -TARGET_EFAULT;
2834 __get_user(host_sd->shm_segsz, &target_sd->shm_segsz);
2835 __get_user(host_sd->shm_atime, &target_sd->shm_atime);
2836 __get_user(host_sd->shm_dtime, &target_sd->shm_dtime);
2837 __get_user(host_sd->shm_ctime, &target_sd->shm_ctime);
2838 __get_user(host_sd->shm_cpid, &target_sd->shm_cpid);
2839 __get_user(host_sd->shm_lpid, &target_sd->shm_lpid);
2840 __get_user(host_sd->shm_nattch, &target_sd->shm_nattch);
2841 unlock_user_struct(target_sd, target_addr, 0);
2842 return 0;
2843 }
2844
2845 static inline abi_long host_to_target_shmid_ds(abi_ulong target_addr,
2846 struct shmid_ds *host_sd)
2847 {
2848 struct target_shmid_ds *target_sd;
2849
2850 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
2851 return -TARGET_EFAULT;
2852 if (host_to_target_ipc_perm(target_addr, &(host_sd->shm_perm)))
2853 return -TARGET_EFAULT;
2854 __put_user(host_sd->shm_segsz, &target_sd->shm_segsz);
2855 __put_user(host_sd->shm_atime, &target_sd->shm_atime);
2856 __put_user(host_sd->shm_dtime, &target_sd->shm_dtime);
2857 __put_user(host_sd->shm_ctime, &target_sd->shm_ctime);
2858 __put_user(host_sd->shm_cpid, &target_sd->shm_cpid);
2859 __put_user(host_sd->shm_lpid, &target_sd->shm_lpid);
2860 __put_user(host_sd->shm_nattch, &target_sd->shm_nattch);
2861 unlock_user_struct(target_sd, target_addr, 1);
2862 return 0;
2863 }
2864
2865 struct target_shminfo {
2866 abi_ulong shmmax;
2867 abi_ulong shmmin;
2868 abi_ulong shmmni;
2869 abi_ulong shmseg;
2870 abi_ulong shmall;
2871 };
2872
2873 static inline abi_long host_to_target_shminfo(abi_ulong target_addr,
2874 struct shminfo *host_shminfo)
2875 {
2876 struct target_shminfo *target_shminfo;
2877 if (!lock_user_struct(VERIFY_WRITE, target_shminfo, target_addr, 0))
2878 return -TARGET_EFAULT;
2879 __put_user(host_shminfo->shmmax, &target_shminfo->shmmax);
2880 __put_user(host_shminfo->shmmin, &target_shminfo->shmmin);
2881 __put_user(host_shminfo->shmmni, &target_shminfo->shmmni);
2882 __put_user(host_shminfo->shmseg, &target_shminfo->shmseg);
2883 __put_user(host_shminfo->shmall, &target_shminfo->shmall);
2884 unlock_user_struct(target_shminfo, target_addr, 1);
2885 return 0;
2886 }
2887
2888 struct target_shm_info {
2889 int used_ids;
2890 abi_ulong shm_tot;
2891 abi_ulong shm_rss;
2892 abi_ulong shm_swp;
2893 abi_ulong swap_attempts;
2894 abi_ulong swap_successes;
2895 };
2896
2897 static inline abi_long host_to_target_shm_info(abi_ulong target_addr,
2898 struct shm_info *host_shm_info)
2899 {
2900 struct target_shm_info *target_shm_info;
2901 if (!lock_user_struct(VERIFY_WRITE, target_shm_info, target_addr, 0))
2902 return -TARGET_EFAULT;
2903 __put_user(host_shm_info->used_ids, &target_shm_info->used_ids);
2904 __put_user(host_shm_info->shm_tot, &target_shm_info->shm_tot);
2905 __put_user(host_shm_info->shm_rss, &target_shm_info->shm_rss);
2906 __put_user(host_shm_info->shm_swp, &target_shm_info->shm_swp);
2907 __put_user(host_shm_info->swap_attempts, &target_shm_info->swap_attempts);
2908 __put_user(host_shm_info->swap_successes, &target_shm_info->swap_successes);
2909 unlock_user_struct(target_shm_info, target_addr, 1);
2910 return 0;
2911 }
2912
2913 static inline abi_long do_shmctl(int shmid, int cmd, abi_long buf)
2914 {
2915 struct shmid_ds dsarg;
2916 struct shminfo shminfo;
2917 struct shm_info shm_info;
2918 abi_long ret = -TARGET_EINVAL;
2919
2920 cmd &= 0xff;
2921
2922 switch(cmd) {
2923 case IPC_STAT:
2924 case IPC_SET:
2925 case SHM_STAT:
2926 if (target_to_host_shmid_ds(&dsarg, buf))
2927 return -TARGET_EFAULT;
2928 ret = get_errno(shmctl(shmid, cmd, &dsarg));
2929 if (host_to_target_shmid_ds(buf, &dsarg))
2930 return -TARGET_EFAULT;
2931 break;
2932 case IPC_INFO:
2933 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shminfo));
2934 if (host_to_target_shminfo(buf, &shminfo))
2935 return -TARGET_EFAULT;
2936 break;
2937 case SHM_INFO:
2938 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shm_info));
2939 if (host_to_target_shm_info(buf, &shm_info))
2940 return -TARGET_EFAULT;
2941 break;
2942 case IPC_RMID:
2943 case SHM_LOCK:
2944 case SHM_UNLOCK:
2945 ret = get_errno(shmctl(shmid, cmd, NULL));
2946 break;
2947 }
2948
2949 return ret;
2950 }
2951
2952 static inline abi_ulong do_shmat(int shmid, abi_ulong shmaddr, int shmflg)
2953 {
2954 abi_long raddr;
2955 void *host_raddr;
2956 struct shmid_ds shm_info;
2957 int i,ret;
2958
2959 /* find out the length of the shared memory segment */
2960 ret = get_errno(shmctl(shmid, IPC_STAT, &shm_info));
2961 if (is_error(ret)) {
2962 /* can't get length, bail out */
2963 return ret;
2964 }
2965
2966 mmap_lock();
2967
2968 if (shmaddr)
2969 host_raddr = shmat(shmid, (void *)g2h(shmaddr), shmflg);
2970 else {
2971 abi_ulong mmap_start;
2972
2973 mmap_start = mmap_find_vma(0, shm_info.shm_segsz);
2974
2975 if (mmap_start == -1) {
2976 errno = ENOMEM;
2977 host_raddr = (void *)-1;
2978 } else
2979 host_raddr = shmat(shmid, g2h(mmap_start), shmflg | SHM_REMAP);
2980 }
2981
2982 if (host_raddr == (void *)-1) {
2983 mmap_unlock();
2984 return get_errno((long)host_raddr);
2985 }
2986 raddr=h2g((unsigned long)host_raddr);
2987
2988 page_set_flags(raddr, raddr + shm_info.shm_segsz,
2989 PAGE_VALID | PAGE_READ |
2990 ((shmflg & SHM_RDONLY)? 0 : PAGE_WRITE));
2991
2992 for (i = 0; i < N_SHM_REGIONS; i++) {
2993 if (shm_regions[i].start == 0) {
2994 shm_regions[i].start = raddr;
2995 shm_regions[i].size = shm_info.shm_segsz;
2996 break;
2997 }
2998 }
2999
3000 mmap_unlock();
3001 return raddr;
3002
3003 }
3004
3005 static inline abi_long do_shmdt(abi_ulong shmaddr)
3006 {
3007 int i;
3008
3009 for (i = 0; i < N_SHM_REGIONS; ++i) {
3010 if (shm_regions[i].start == shmaddr) {
3011 shm_regions[i].start = 0;
3012 page_set_flags(shmaddr, shmaddr + shm_regions[i].size, 0);
3013 break;
3014 }
3015 }
3016
3017 return get_errno(shmdt(g2h(shmaddr)));
3018 }
3019
3020 #ifdef TARGET_NR_ipc
3021 /* ??? This only works with linear mappings. */
3022 /* do_ipc() must return target values and target errnos. */
3023 static abi_long do_ipc(unsigned int call, int first,
3024 int second, int third,
3025 abi_long ptr, abi_long fifth)
3026 {
3027 int version;
3028 abi_long ret = 0;
3029
3030 version = call >> 16;
3031 call &= 0xffff;
3032
3033 switch (call) {
3034 case IPCOP_semop:
3035 ret = do_semop(first, ptr, second);
3036 break;
3037
3038 case IPCOP_semget:
3039 ret = get_errno(semget(first, second, third));
3040 break;
3041
3042 case IPCOP_semctl:
3043 ret = do_semctl(first, second, third, (union target_semun)(abi_ulong) ptr);
3044 break;
3045
3046 case IPCOP_msgget:
3047 ret = get_errno(msgget(first, second));
3048 break;
3049
3050 case IPCOP_msgsnd:
3051 ret = do_msgsnd(first, ptr, second, third);
3052 break;
3053
3054 case IPCOP_msgctl:
3055 ret = do_msgctl(first, second, ptr);
3056 break;
3057
3058 case IPCOP_msgrcv:
3059 switch (version) {
3060 case 0:
3061 {
3062 struct target_ipc_kludge {
3063 abi_long msgp;
3064 abi_long msgtyp;
3065 } *tmp;
3066
3067 if (!lock_user_struct(VERIFY_READ, tmp, ptr, 1)) {
3068 ret = -TARGET_EFAULT;
3069 break;
3070 }
3071
3072 ret = do_msgrcv(first, tswapal(tmp->msgp), second, tswapal(tmp->msgtyp), third);
3073
3074 unlock_user_struct(tmp, ptr, 0);
3075 break;
3076 }
3077 default:
3078 ret = do_msgrcv(first, ptr, second, fifth, third);
3079 }
3080 break;
3081
3082 case IPCOP_shmat:
3083 switch (version) {
3084 default:
3085 {
3086 abi_ulong raddr;
3087 raddr = do_shmat(first, ptr, second);
3088 if (is_error(raddr))
3089 return get_errno(raddr);
3090 if (put_user_ual(raddr, third))
3091 return -TARGET_EFAULT;
3092 break;
3093 }
3094 case 1:
3095 ret = -TARGET_EINVAL;
3096 break;
3097 }
3098 break;
3099 case IPCOP_shmdt:
3100 ret = do_shmdt(ptr);
3101 break;
3102
3103 case IPCOP_shmget:
3104 /* IPC_* flag values are the same on all linux platforms */
3105 ret = get_errno(shmget(first, second, third));
3106 break;
3107
3108 /* IPC_* and SHM_* command values are the same on all linux platforms */
3109 case IPCOP_shmctl:
3110 ret = do_shmctl(first, second, third);
3111 break;
3112 default:
3113 gemu_log("Unsupported ipc call: %d (version %d)\n", call, version);
3114 ret = -TARGET_ENOSYS;
3115 break;
3116 }
3117 return ret;
3118 }
3119 #endif
3120
3121 /* kernel structure types definitions */
3122
3123 #define STRUCT(name, ...) STRUCT_ ## name,
3124 #define STRUCT_SPECIAL(name) STRUCT_ ## name,
3125 enum {
3126 #include "syscall_types.h"
3127 };
3128 #undef STRUCT
3129 #undef STRUCT_SPECIAL
3130
3131 #define STRUCT(name, ...) static const argtype struct_ ## name ## _def[] = { __VA_ARGS__, TYPE_NULL };
3132 #define STRUCT_SPECIAL(name)
3133 #include "syscall_types.h"
3134 #undef STRUCT
3135 #undef STRUCT_SPECIAL
3136
3137 typedef struct IOCTLEntry IOCTLEntry;
3138
3139 typedef abi_long do_ioctl_fn(const IOCTLEntry *ie, uint8_t *buf_temp,
3140 int fd, abi_long cmd, abi_long arg);
3141
3142 struct IOCTLEntry {
3143 unsigned int target_cmd;
3144 unsigned int host_cmd;
3145 const char *name;
3146 int access;
3147 do_ioctl_fn *do_ioctl;
3148 const argtype arg_type[5];
3149 };
3150
3151 #define IOC_R 0x0001
3152 #define IOC_W 0x0002
3153 #define IOC_RW (IOC_R | IOC_W)
3154
3155 #define MAX_STRUCT_SIZE 4096
3156
3157 #ifdef CONFIG_FIEMAP
3158 /* So fiemap access checks don't overflow on 32 bit systems.
3159 * This is very slightly smaller than the limit imposed by
3160 * the underlying kernel.
3161 */
3162 #define FIEMAP_MAX_EXTENTS ((UINT_MAX - sizeof(struct fiemap)) \
3163 / sizeof(struct fiemap_extent))
3164
3165 static abi_long do_ioctl_fs_ioc_fiemap(const IOCTLEntry *ie, uint8_t *buf_temp,
3166 int fd, abi_long cmd, abi_long arg)
3167 {
3168 /* The parameter for this ioctl is a struct fiemap followed
3169 * by an array of struct fiemap_extent whose size is set
3170 * in fiemap->fm_extent_count. The array is filled in by the
3171 * ioctl.
3172 */
3173 int target_size_in, target_size_out;
3174 struct fiemap *fm;
3175 const argtype *arg_type = ie->arg_type;
3176 const argtype extent_arg_type[] = { MK_STRUCT(STRUCT_fiemap_extent) };
3177 void *argptr, *p;
3178 abi_long ret;
3179 int i, extent_size = thunk_type_size(extent_arg_type, 0);
3180 uint32_t outbufsz;
3181 int free_fm = 0;
3182
3183 assert(arg_type[0] == TYPE_PTR);
3184 assert(ie->access == IOC_RW);
3185 arg_type++;
3186 target_size_in = thunk_type_size(arg_type, 0);
3187 argptr = lock_user(VERIFY_READ, arg, target_size_in, 1);
3188 if (!argptr) {
3189 return -TARGET_EFAULT;
3190 }
3191 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
3192 unlock_user(argptr, arg, 0);
3193 fm = (struct fiemap *)buf_temp;
3194 if (fm->fm_extent_count > FIEMAP_MAX_EXTENTS) {
3195 return -TARGET_EINVAL;
3196 }
3197
3198 outbufsz = sizeof (*fm) +
3199 (sizeof(struct fiemap_extent) * fm->fm_extent_count);
3200
3201 if (outbufsz > MAX_STRUCT_SIZE) {
3202 /* We can't fit all the extents into the fixed size buffer.
3203 * Allocate one that is large enough and use it instead.
3204 */
3205 fm = malloc(outbufsz);
3206 if (!fm) {
3207 return -TARGET_ENOMEM;
3208 }
3209 memcpy(fm, buf_temp, sizeof(struct fiemap));
3210 free_fm = 1;
3211 }
3212 ret = get_errno(ioctl(fd, ie->host_cmd, fm));
3213 if (!is_error(ret)) {
3214 target_size_out = target_size_in;
3215 /* An extent_count of 0 means we were only counting the extents
3216 * so there are no structs to copy
3217 */
3218 if (fm->fm_extent_count != 0) {
3219 target_size_out += fm->fm_mapped_extents * extent_size;
3220 }
3221 argptr = lock_user(VERIFY_WRITE, arg, target_size_out, 0);
3222 if (!argptr) {
3223 ret = -TARGET_EFAULT;
3224 } else {
3225 /* Convert the struct fiemap */
3226 thunk_convert(argptr, fm, arg_type, THUNK_TARGET);
3227 if (fm->fm_extent_count != 0) {
3228 p = argptr + target_size_in;
3229 /* ...and then all the struct fiemap_extents */
3230 for (i = 0; i < fm->fm_mapped_extents; i++) {
3231 thunk_convert(p, &fm->fm_extents[i], extent_arg_type,
3232 THUNK_TARGET);
3233 p += extent_size;
3234 }
3235 }
3236 unlock_user(argptr, arg, target_size_out);
3237 }
3238 }
3239 if (free_fm) {
3240 free(fm);
3241 }
3242 return ret;
3243 }
3244 #endif
3245
3246 static abi_long do_ioctl_ifconf(const IOCTLEntry *ie, uint8_t *buf_temp,
3247 int fd, abi_long cmd, abi_long arg)
3248 {
3249 const argtype *arg_type = ie->arg_type;
3250 int target_size;
3251 void *argptr;
3252 int ret;
3253 struct ifconf *host_ifconf;
3254 uint32_t outbufsz;
3255 const argtype ifreq_arg_type[] = { MK_STRUCT(STRUCT_sockaddr_ifreq) };
3256 int target_ifreq_size;
3257 int nb_ifreq;
3258 int free_buf = 0;
3259 int i;
3260 int target_ifc_len;
3261 abi_long target_ifc_buf;
3262 int host_ifc_len;
3263 char *host_ifc_buf;
3264
3265 assert(arg_type[0] == TYPE_PTR);
3266 assert(ie->access == IOC_RW);
3267
3268 arg_type++;
3269 target_size = thunk_type_size(arg_type, 0);
3270
3271 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
3272 if (!argptr)
3273 return -TARGET_EFAULT;
3274 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
3275 unlock_user(argptr, arg, 0);
3276
3277 host_ifconf = (struct ifconf *)(unsigned long)buf_temp;
3278 target_ifc_len = host_ifconf->ifc_len;
3279 target_ifc_buf = (abi_long)(unsigned long)host_ifconf->ifc_buf;
3280
3281 target_ifreq_size = thunk_type_size(ifreq_arg_type, 0);
3282 nb_ifreq = target_ifc_len / target_ifreq_size;
3283 host_ifc_len = nb_ifreq * sizeof(struct ifreq);
3284
3285 outbufsz = sizeof(*host_ifconf) + host_ifc_len;
3286 if (outbufsz > MAX_STRUCT_SIZE) {
3287 /* We can't fit all the extents into the fixed size buffer.
3288 * Allocate one that is large enough and use it instead.
3289 */
3290 host_ifconf = malloc(outbufsz);
3291 if (!host_ifconf) {
3292 return -TARGET_ENOMEM;
3293 }
3294 memcpy(host_ifconf, buf_temp, sizeof(*host_ifconf));
3295 free_buf = 1;
3296 }
3297 host_ifc_buf = (char*)host_ifconf + sizeof(*host_ifconf);
3298
3299 host_ifconf->ifc_len = host_ifc_len;
3300 host_ifconf->ifc_buf = host_ifc_buf;
3301
3302 ret = get_errno(ioctl(fd, ie->host_cmd, host_ifconf));
3303 if (!is_error(ret)) {
3304 /* convert host ifc_len to target ifc_len */
3305
3306 nb_ifreq = host_ifconf->ifc_len / sizeof(struct ifreq);
3307 target_ifc_len = nb_ifreq * target_ifreq_size;
3308 host_ifconf->ifc_len = target_ifc_len;
3309
3310 /* restore target ifc_buf */
3311
3312 host_ifconf->ifc_buf = (char *)(unsigned long)target_ifc_buf;
3313
3314 /* copy struct ifconf to target user */
3315
3316 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
3317 if (!argptr)
3318 return -TARGET_EFAULT;
3319 thunk_convert(argptr, host_ifconf, arg_type, THUNK_TARGET);
3320 unlock_user(argptr, arg, target_size);
3321
3322 /* copy ifreq[] to target user */
3323
3324 argptr = lock_user(VERIFY_WRITE, target_ifc_buf, target_ifc_len, 0);
3325 for (i = 0; i < nb_ifreq ; i++) {
3326 thunk_convert(argptr + i * target_ifreq_size,
3327 host_ifc_buf + i * sizeof(struct ifreq),
3328 ifreq_arg_type, THUNK_TARGET);
3329 }
3330 unlock_user(argptr, target_ifc_buf, target_ifc_len);
3331 }
3332
3333 if (free_buf) {
3334 free(host_ifconf);
3335 }
3336
3337 return ret;
3338 }
3339
3340 static abi_long do_ioctl_dm(const IOCTLEntry *ie, uint8_t *buf_temp, int fd,
3341 abi_long cmd, abi_long arg)
3342 {
3343 void *argptr;
3344 struct dm_ioctl *host_dm;
3345 abi_long guest_data;
3346 uint32_t guest_data_size;
3347 int target_size;
3348 const argtype *arg_type = ie->arg_type;
3349 abi_long ret;
3350 void *big_buf = NULL;
3351 char *host_data;
3352
3353 arg_type++;
3354 target_size = thunk_type_size(arg_type, 0);
3355 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
3356 if (!argptr) {
3357 ret = -TARGET_EFAULT;
3358 goto out;
3359 }
3360 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
3361 unlock_user(argptr, arg, 0);
3362
3363 /* buf_temp is too small, so fetch things into a bigger buffer */
3364 big_buf = g_malloc0(((struct dm_ioctl*)buf_temp)->data_size * 2);
3365 memcpy(big_buf, buf_temp, target_size);
3366 buf_temp = big_buf;
3367 host_dm = big_buf;
3368
3369 guest_data = arg + host_dm->data_start;
3370 if ((guest_data - arg) < 0) {
3371 ret = -EINVAL;
3372 goto out;
3373 }
3374 guest_data_size = host_dm->data_size - host_dm->data_start;
3375 host_data = (char*)host_dm + host_dm->data_start;
3376
3377 argptr = lock_user(VERIFY_READ, guest_data, guest_data_size, 1);
3378 switch (ie->host_cmd) {
3379 case DM_REMOVE_ALL:
3380 case DM_LIST_DEVICES:
3381 case DM_DEV_CREATE:
3382 case DM_DEV_REMOVE:
3383 case DM_DEV_SUSPEND:
3384 case DM_DEV_STATUS:
3385 case DM_DEV_WAIT:
3386 case DM_TABLE_STATUS:
3387 case DM_TABLE_CLEAR:
3388 case DM_TABLE_DEPS:
3389 case DM_LIST_VERSIONS:
3390 /* no input data */
3391 break;
3392 case DM_DEV_RENAME:
3393 case DM_DEV_SET_GEOMETRY:
3394 /* data contains only strings */
3395 memcpy(host_data, argptr, guest_data_size);
3396 break;
3397 case DM_TARGET_MSG:
3398 memcpy(host_data, argptr, guest_data_size);
3399 *(uint64_t*)host_data = tswap64(*(uint64_t*)argptr);
3400 break;
3401 case DM_TABLE_LOAD:
3402 {
3403 void *gspec = argptr;
3404 void *cur_data = host_data;
3405 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) };
3406 int spec_size = thunk_type_size(arg_type, 0);
3407 int i;
3408
3409 for (i = 0; i < host_dm->target_count; i++) {
3410 struct dm_target_spec *spec = cur_data;
3411 uint32_t next;
3412 int slen;
3413
3414 thunk_convert(spec, gspec, arg_type, THUNK_HOST);
3415 slen = strlen((char*)gspec + spec_size) + 1;
3416 next = spec->next;
3417 spec->next = sizeof(*spec) + slen;
3418 strcpy((char*)&spec[1], gspec + spec_size);
3419 gspec += next;
3420 cur_data += spec->next;
3421 }
3422 break;
3423 }
3424 default:
3425 ret = -TARGET_EINVAL;
3426 goto out;
3427 }
3428 unlock_user(argptr, guest_data, 0);
3429
3430 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
3431 if (!is_error(ret)) {
3432 guest_data = arg + host_dm->data_start;
3433 guest_data_size = host_dm->data_size - host_dm->data_start;
3434 argptr = lock_user(VERIFY_WRITE, guest_data, guest_data_size, 0);
3435 switch (ie->host_cmd) {
3436 case DM_REMOVE_ALL:
3437 case DM_DEV_CREATE:
3438 case DM_DEV_REMOVE:
3439 case DM_DEV_RENAME:
3440 case DM_DEV_SUSPEND:
3441 case DM_DEV_STATUS:
3442 case DM_TABLE_LOAD:
3443 case DM_TABLE_CLEAR:
3444 case DM_TARGET_MSG:
3445 case DM_DEV_SET_GEOMETRY:
3446 /* no return data */
3447 break;
3448 case DM_LIST_DEVICES:
3449 {
3450 struct dm_name_list *nl = (void*)host_dm + host_dm->data_start;
3451 uint32_t remaining_data = guest_data_size;
3452 void *cur_data = argptr;
3453 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_name_list) };
3454 int nl_size = 12; /* can't use thunk_size due to alignment */
3455
3456 while (1) {
3457 uint32_t next = nl->next;
3458 if (next) {
3459 nl->next = nl_size + (strlen(nl->name) + 1);
3460 }
3461 if (remaining_data < nl->next) {
3462 host_dm->flags |= DM_BUFFER_FULL_FLAG;
3463 break;
3464 }
3465 thunk_convert(cur_data, nl, arg_type, THUNK_TARGET);
3466 strcpy(cur_data + nl_size, nl->name);
3467 cur_data += nl->next;
3468 remaining_data -= nl->next;
3469 if (!next) {
3470 break;
3471 }
3472 nl = (void*)nl + next;
3473 }
3474 break;
3475 }
3476 case DM_DEV_WAIT:
3477 case DM_TABLE_STATUS:
3478 {
3479 struct dm_target_spec *spec = (void*)host_dm + host_dm->data_start;
3480 void *cur_data = argptr;
3481 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) };
3482 int spec_size = thunk_type_size(arg_type, 0);
3483 int i;
3484
3485 for (i = 0; i < host_dm->target_count; i++) {
3486 uint32_t next = spec->next;
3487 int slen = strlen((char*)&spec[1]) + 1;
3488 spec->next = (cur_data - argptr) + spec_size + slen;
3489 if (guest_data_size < spec->next) {
3490 host_dm->flags |= DM_BUFFER_FULL_FLAG;
3491 break;
3492 }
3493 thunk_convert(cur_data, spec, arg_type, THUNK_TARGET);
3494 strcpy(cur_data + spec_size, (char*)&spec[1]);
3495 cur_data = argptr + spec->next;
3496 spec = (void*)host_dm + host_dm->data_start + next;
3497 }
3498 break;
3499 }
3500 case DM_TABLE_DEPS:
3501 {
3502 void *hdata = (void*)host_dm + host_dm->data_start;
3503 int count = *(uint32_t*)hdata;
3504 uint64_t *hdev = hdata + 8;
3505 uint64_t *gdev = argptr + 8;
3506 int i;
3507
3508 *(uint32_t*)argptr = tswap32(count);
3509 for (i = 0; i < count; i++) {
3510 *gdev = tswap64(*hdev);
3511 gdev++;
3512 hdev++;
3513 }
3514 break;
3515 }
3516 case DM_LIST_VERSIONS:
3517 {
3518 struct dm_target_versions *vers = (void*)host_dm + host_dm->data_start;
3519 uint32_t remaining_data = guest_data_size;
3520 void *cur_data = argptr;
3521 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_versions) };
3522 int vers_size = thunk_type_size(arg_type, 0);
3523
3524 while (1) {
3525 uint32_t next = vers->next;
3526 if (next) {
3527 vers->next = vers_size + (strlen(vers->name) + 1);
3528 }
3529 if (remaining_data < vers->next) {
3530 host_dm->flags |= DM_BUFFER_FULL_FLAG;
3531 break;
3532 }
3533 thunk_convert(cur_data, vers, arg_type, THUNK_TARGET);
3534 strcpy(cur_data + vers_size, vers->name);
3535 cur_data += vers->next;
3536 remaining_data -= vers->next;
3537 if (!next) {
3538 break;
3539 }
3540 vers = (void*)vers + next;
3541 }
3542 break;
3543 }
3544 default:
3545 ret = -TARGET_EINVAL;
3546 goto out;
3547 }
3548 unlock_user(argptr, guest_data, guest_data_size);
3549
3550 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
3551 if (!argptr) {
3552 ret = -TARGET_EFAULT;
3553 goto out;
3554 }
3555 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
3556 unlock_user(argptr, arg, target_size);
3557 }
3558 out:
3559 g_free(big_buf);
3560 return ret;
3561 }
3562
3563 static abi_long do_ioctl_rt(const IOCTLEntry *ie, uint8_t *buf_temp,
3564 int fd, abi_long cmd, abi_long arg)
3565 {
3566 const argtype *arg_type = ie->arg_type;
3567 const StructEntry *se;
3568 const argtype *field_types;
3569 const int *dst_offsets, *src_offsets;
3570 int target_size;
3571 void *argptr;
3572 abi_ulong *target_rt_dev_ptr;
3573 unsigned long *host_rt_dev_ptr;
3574 abi_long ret;
3575 int i;
3576
3577 assert(ie->access == IOC_W);
3578 assert(*arg_type == TYPE_PTR);
3579 arg_type++;
3580 assert(*arg_type == TYPE_STRUCT);
3581 target_size = thunk_type_size(arg_type, 0);
3582 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
3583 if (!argptr) {
3584 return -TARGET_EFAULT;
3585 }
3586 arg_type++;
3587 assert(*arg_type == (int)STRUCT_rtentry);
3588 se = struct_entries + *arg_type++;
3589 assert(se->convert[0] == NULL);
3590 /* convert struct here to be able to catch rt_dev string */
3591 field_types = se->field_types;
3592 dst_offsets = se->field_offsets[THUNK_HOST];
3593 src_offsets = se->field_offsets[THUNK_TARGET];
3594 for (i = 0; i < se->nb_fields; i++) {
3595 if (dst_offsets[i] == offsetof(struct rtentry, rt_dev)) {
3596 assert(*field_types == TYPE_PTRVOID);
3597 target_rt_dev_ptr = (abi_ulong *)(argptr + src_offsets[i]);
3598 host_rt_dev_ptr = (unsigned long *)(buf_temp + dst_offsets[i]);
3599 if (*target_rt_dev_ptr != 0) {
3600 *host_rt_dev_ptr = (unsigned long)lock_user_string(
3601 tswapal(*target_rt_dev_ptr));
3602 if (!*host_rt_dev_ptr) {
3603 unlock_user(argptr, arg, 0);
3604 return -TARGET_EFAULT;
3605 }
3606 } else {
3607 *host_rt_dev_ptr = 0;
3608 }
3609 field_types++;
3610 continue;
3611 }
3612 field_types = thunk_convert(buf_temp + dst_offsets[i],
3613 argptr + src_offsets[i],
3614 field_types, THUNK_HOST);
3615 }
3616 unlock_user(argptr, arg, 0);
3617
3618 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
3619 if (*host_rt_dev_ptr != 0) {
3620 unlock_user((void *)*host_rt_dev_ptr,
3621 *target_rt_dev_ptr, 0);
3622 }
3623 return ret;
3624 }
3625
3626 static IOCTLEntry ioctl_entries[] = {
3627 #define IOCTL(cmd, access, ...) \
3628 { TARGET_ ## cmd, cmd, #cmd, access, 0, { __VA_ARGS__ } },
3629 #define IOCTL_SPECIAL(cmd, access, dofn, ...) \
3630 { TARGET_ ## cmd, cmd, #cmd, access, dofn, { __VA_ARGS__ } },
3631 #include "ioctls.h"
3632 { 0, 0, },
3633 };
3634
3635 /* ??? Implement proper locking for ioctls. */
3636 /* do_ioctl() Must return target values and target errnos. */
3637 static abi_long do_ioctl(int fd, abi_long cmd, abi_long arg)
3638 {
3639 const IOCTLEntry *ie;
3640 const argtype *arg_type;
3641 abi_long ret;
3642 uint8_t buf_temp[MAX_STRUCT_SIZE];
3643 int target_size;
3644 void *argptr;
3645
3646 ie = ioctl_entries;
3647 for(;;) {
3648 if (ie->target_cmd == 0) {
3649 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd);
3650 return -TARGET_ENOSYS;
3651 }
3652 if (ie->target_cmd == cmd)
3653 break;
3654 ie++;
3655 }
3656 arg_type = ie->arg_type;
3657 #if defined(DEBUG)
3658 gemu_log("ioctl: cmd=0x%04lx (%s)\n", (long)cmd, ie->name);
3659 #endif
3660 if (ie->do_ioctl) {
3661 return ie->do_ioctl(ie, buf_temp, fd, cmd, arg);
3662 }
3663
3664 switch(arg_type[0]) {
3665 case TYPE_NULL:
3666 /* no argument */
3667 ret = get_errno(ioctl(fd, ie->host_cmd));
3668 break;
3669 case TYPE_PTRVOID:
3670 case TYPE_INT:
3671 /* int argment */
3672 ret = get_errno(ioctl(fd, ie->host_cmd, arg));
3673 break;
3674 case TYPE_PTR:
3675 arg_type++;
3676 target_size = thunk_type_size(arg_type, 0);
3677 switch(ie->access) {
3678 case IOC_R:
3679 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
3680 if (!is_error(ret)) {
3681 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
3682 if (!argptr)
3683 return -TARGET_EFAULT;
3684 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
3685 unlock_user(argptr, arg, target_size);
3686 }
3687 break;
3688 case IOC_W:
3689 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
3690 if (!argptr)
3691 return -TARGET_EFAULT;
3692 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
3693 unlock_user(argptr, arg, 0);
3694 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
3695 break;
3696 default:
3697 case IOC_RW:
3698 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
3699 if (!argptr)
3700 return -TARGET_EFAULT;
3701 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
3702 unlock_user(argptr, arg, 0);
3703 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
3704 if (!is_error(ret)) {
3705 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
3706 if (!argptr)
3707 return -TARGET_EFAULT;
3708 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
3709 unlock_user(argptr, arg, target_size);
3710 }
3711 break;
3712 }
3713 break;
3714 default:
3715 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n",
3716 (long)cmd, arg_type[0]);
3717 ret = -TARGET_ENOSYS;
3718 break;
3719 }
3720 return ret;
3721 }
3722
3723 static const bitmask_transtbl iflag_tbl[] = {
3724 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
3725 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
3726 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
3727 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
3728 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
3729 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
3730 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
3731 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
3732 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
3733 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
3734 { TARGET_IXON, TARGET_IXON, IXON, IXON },
3735 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
3736 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
3737 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
3738 { 0, 0, 0, 0 }
3739 };
3740
3741 static const bitmask_transtbl oflag_tbl[] = {
3742 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
3743 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
3744 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
3745 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
3746 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
3747 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
3748 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
3749 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
3750 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
3751 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
3752 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
3753 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
3754 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
3755 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
3756 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
3757 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
3758 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
3759 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
3760 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
3761 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
3762 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
3763 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
3764 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
3765 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
3766 { 0, 0, 0, 0 }
3767 };
3768
3769 static const bitmask_transtbl cflag_tbl[] = {
3770 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
3771 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
3772 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
3773 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
3774 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
3775 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
3776 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
3777 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
3778 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
3779 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
3780 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
3781 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
3782 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
3783 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
3784 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
3785 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
3786 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
3787 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
3788 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
3789 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
3790 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
3791 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
3792 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
3793 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
3794 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
3795 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
3796 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
3797 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
3798 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
3799 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
3800 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
3801 { 0, 0, 0, 0 }
3802 };
3803
3804 static const bitmask_transtbl lflag_tbl[] = {
3805 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
3806 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
3807 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
3808 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
3809 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
3810 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
3811 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
3812 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
3813 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
3814 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
3815 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
3816 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
3817 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
3818 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
3819 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
3820 { 0, 0, 0, 0 }
3821 };
3822
3823 static void target_to_host_termios (void *dst, const void *src)
3824 {
3825 struct host_termios *host = dst;
3826 const struct target_termios *target = src;
3827
3828 host->c_iflag =
3829 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
3830 host->c_oflag =
3831 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
3832 host->c_cflag =
3833 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
3834 host->c_lflag =
3835 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
3836 host->c_line = target->c_line;
3837
3838 memset(host->c_cc, 0, sizeof(host->c_cc));
3839 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
3840 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
3841 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
3842 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
3843 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
3844 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
3845 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
3846 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
3847 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
3848 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
3849 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
3850 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
3851 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
3852 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
3853 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
3854 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
3855 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
3856 }
3857
3858 static void host_to_target_termios (void *dst, const void *src)
3859 {
3860 struct target_termios *target = dst;
3861 const struct host_termios *host = src;
3862
3863 target->c_iflag =
3864 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
3865 target->c_oflag =
3866 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
3867 target->c_cflag =
3868 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
3869 target->c_lflag =
3870 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
3871 target->c_line = host->c_line;
3872
3873 memset(target->c_cc, 0, sizeof(target->c_cc));
3874 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
3875 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
3876 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
3877 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
3878 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
3879 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
3880 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
3881 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
3882 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
3883 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
3884 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
3885 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
3886 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
3887 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
3888 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
3889 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
3890 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
3891 }
3892
3893 static const StructEntry struct_termios_def = {
3894 .convert = { host_to_target_termios, target_to_host_termios },
3895 .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
3896 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
3897 };
3898
3899 static bitmask_transtbl mmap_flags_tbl[] = {
3900 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
3901 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
3902 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
3903 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
3904 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
3905 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
3906 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
3907 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
3908 { 0, 0, 0, 0 }
3909 };
3910
3911 #if defined(TARGET_I386)
3912
3913 /* NOTE: there is really one LDT for all the threads */
3914 static uint8_t *ldt_table;
3915
3916 static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount)
3917 {
3918 int size;
3919 void *p;
3920
3921 if (!ldt_table)
3922 return 0;
3923 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
3924 if (size > bytecount)
3925 size = bytecount;
3926 p = lock_user(VERIFY_WRITE, ptr, size, 0);
3927 if (!p)
3928 return -TARGET_EFAULT;
3929 /* ??? Should this by byteswapped? */
3930 memcpy(p, ldt_table, size);
3931 unlock_user(p, ptr, size);
3932 return size;
3933 }
3934
3935 /* XXX: add locking support */
3936 static abi_long write_ldt(CPUX86State *env,
3937 abi_ulong ptr, unsigned long bytecount, int oldmode)
3938 {
3939 struct target_modify_ldt_ldt_s ldt_info;
3940 struct target_modify_ldt_ldt_s *target_ldt_info;
3941 int seg_32bit, contents, read_exec_only, limit_in_pages;
3942 int seg_not_present, useable, lm;
3943 uint32_t *lp, entry_1, entry_2;
3944
3945 if (bytecount != sizeof(ldt_info))
3946 return -TARGET_EINVAL;
3947 if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1))
3948 return -TARGET_EFAULT;
3949 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
3950 ldt_info.base_addr = tswapal(target_ldt_info->base_addr);
3951 ldt_info.limit = tswap32(target_ldt_info->limit);
3952 ldt_info.flags = tswap32(target_ldt_info->flags);
3953 unlock_user_struct(target_ldt_info, ptr, 0);
3954
3955 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
3956 return -TARGET_EINVAL;
3957 seg_32bit = ldt_info.flags & 1;
3958 contents = (ldt_info.flags >> 1) & 3;
3959 read_exec_only = (ldt_info.flags >> 3) & 1;
3960 limit_in_pages = (ldt_info.flags >> 4) & 1;
3961 seg_not_present = (ldt_info.flags >> 5) & 1;
3962 useable = (ldt_info.flags >> 6) & 1;
3963 #ifdef TARGET_ABI32
3964 lm = 0;
3965 #else
3966 lm = (ldt_info.flags >> 7) & 1;
3967 #endif
3968 if (contents == 3) {
3969 if (oldmode)
3970 return -TARGET_EINVAL;
3971 if (seg_not_present == 0)
3972 return -TARGET_EINVAL;
3973 }
3974 /* allocate the LDT */
3975 if (!ldt_table) {
3976 env->ldt.base = target_mmap(0,
3977 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE,
3978 PROT_READ|PROT_WRITE,
3979 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
3980 if (env->ldt.base == -1)
3981 return -TARGET_ENOMEM;
3982 memset(g2h(env->ldt.base), 0,
3983 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
3984 env->ldt.limit = 0xffff;
3985 ldt_table = g2h(env->ldt.base);
3986 }
3987
3988 /* NOTE: same code as Linux kernel */
3989 /* Allow LDTs to be cleared by the user. */
3990 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
3991 if (oldmode ||
3992 (contents == 0 &&
3993 read_exec_only == 1 &&
3994 seg_32bit == 0 &&
3995 limit_in_pages == 0 &&
3996 seg_not_present == 1 &&
3997 useable == 0 )) {
3998 entry_1 = 0;
3999 entry_2 = 0;
4000 goto install;
4001 }
4002 }
4003
4004 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
4005 (ldt_info.limit & 0x0ffff);
4006 entry_2 = (ldt_info.base_addr & 0xff000000) |
4007 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
4008 (ldt_info.limit & 0xf0000) |
4009 ((read_exec_only ^ 1) << 9) |
4010 (contents << 10) |
4011 ((seg_not_present ^ 1) << 15) |
4012 (seg_32bit << 22) |
4013 (limit_in_pages << 23) |
4014 (lm << 21) |
4015 0x7000;
4016 if (!oldmode)
4017 entry_2 |= (useable << 20);
4018
4019 /* Install the new entry ... */
4020 install:
4021 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
4022 lp[0] = tswap32(entry_1);
4023 lp[1] = tswap32(entry_2);
4024 return 0;
4025 }
4026
4027 /* specific and weird i386 syscalls */
4028 static abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr,
4029 unsigned long bytecount)
4030 {
4031 abi_long ret;
4032
4033 switch (func) {
4034 case 0:
4035 ret = read_ldt(ptr, bytecount);
4036 break;
4037 case 1:
4038 ret = write_ldt(env, ptr, bytecount, 1);
4039 break;
4040 case 0x11:
4041 ret = write_ldt(env, ptr, bytecount, 0);
4042 break;
4043 default:
4044 ret = -TARGET_ENOSYS;
4045 break;
4046 }
4047 return ret;
4048 }
4049
4050 #if defined(TARGET_I386) && defined(TARGET_ABI32)
4051 abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr)
4052 {
4053 uint64_t *gdt_table = g2h(env->gdt.base);
4054 struct target_modify_ldt_ldt_s ldt_info;
4055 struct target_modify_ldt_ldt_s *target_ldt_info;
4056 int seg_32bit, contents, read_exec_only, limit_in_pages;
4057 int seg_not_present, useable, lm;
4058 uint32_t *lp, entry_1, entry_2;
4059 int i;
4060
4061 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
4062 if (!target_ldt_info)
4063 return -TARGET_EFAULT;
4064 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
4065 ldt_info.base_addr = tswapal(target_ldt_info->base_addr);
4066 ldt_info.limit = tswap32(target_ldt_info->limit);
4067 ldt_info.flags = tswap32(target_ldt_info->flags);
4068 if (ldt_info.entry_number == -1) {
4069 for (i=TARGET_GDT_ENTRY_TLS_MIN; i<=TARGET_GDT_ENTRY_TLS_MAX; i++) {
4070 if (gdt_table[i] == 0) {
4071 ldt_info.entry_number = i;
4072 target_ldt_info->entry_number = tswap32(i);
4073 break;
4074 }
4075 }
4076 }
4077 unlock_user_struct(target_ldt_info, ptr, 1);
4078
4079 if (ldt_info.entry_number < TARGET_GDT_ENTRY_TLS_MIN ||
4080 ldt_info.entry_number > TARGET_GDT_ENTRY_TLS_MAX)
4081 return -TARGET_EINVAL;
4082 seg_32bit = ldt_info.flags & 1;
4083 contents = (ldt_info.flags >> 1) & 3;
4084 read_exec_only = (ldt_info.flags >> 3) & 1;
4085 limit_in_pages = (ldt_info.flags >> 4) & 1;
4086 seg_not_present = (ldt_info.flags >> 5) & 1;
4087 useable = (ldt_info.flags >> 6) & 1;
4088 #ifdef TARGET_ABI32
4089 lm = 0;
4090 #else
4091 lm = (ldt_info.flags >> 7) & 1;
4092 #endif
4093
4094 if (contents == 3) {
4095 if (seg_not_present == 0)
4096 return -TARGET_EINVAL;
4097 }
4098
4099 /* NOTE: same code as Linux kernel */
4100 /* Allow LDTs to be cleared by the user. */
4101 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
4102 if ((contents == 0 &&
4103 read_exec_only == 1 &&
4104 seg_32bit == 0 &&
4105 limit_in_pages == 0 &&
4106 seg_not_present == 1 &&
4107 useable == 0 )) {
4108 entry_1 = 0;
4109 entry_2 = 0;
4110 goto install;
4111 }
4112 }
4113
4114 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
4115 (ldt_info.limit & 0x0ffff);
4116 entry_2 = (ldt_info.base_addr & 0xff000000) |
4117 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
4118 (ldt_info.limit & 0xf0000) |
4119 ((read_exec_only ^ 1) << 9) |
4120 (contents << 10) |
4121 ((seg_not_present ^ 1) << 15) |
4122 (seg_32bit << 22) |
4123 (limit_in_pages << 23) |
4124 (useable << 20) |
4125 (lm << 21) |
4126 0x7000;
4127
4128 /* Install the new entry ... */
4129 install:
4130 lp = (uint32_t *)(gdt_table + ldt_info.entry_number);
4131 lp[0] = tswap32(entry_1);
4132 lp[1] = tswap32(entry_2);
4133 return 0;
4134 }
4135
4136 static abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr)
4137 {
4138 struct target_modify_ldt_ldt_s *target_ldt_info;
4139 uint64_t *gdt_table = g2h(env->gdt.base);
4140 uint32_t base_addr, limit, flags;
4141 int seg_32bit, contents, read_exec_only, limit_in_pages, idx;
4142 int seg_not_present, useable, lm;
4143 uint32_t *lp, entry_1, entry_2;
4144
4145 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
4146 if (!target_ldt_info)
4147 return -TARGET_EFAULT;
4148 idx = tswap32(target_ldt_info->entry_number);
4149 if (idx < TARGET_GDT_ENTRY_TLS_MIN ||
4150 idx > TARGET_GDT_ENTRY_TLS_MAX) {
4151 unlock_user_struct(target_ldt_info, ptr, 1);
4152 return -TARGET_EINVAL;
4153 }
4154 lp = (uint32_t *)(gdt_table + idx);
4155 entry_1 = tswap32(lp[0]);
4156 entry_2 = tswap32(lp[1]);
4157
4158 read_exec_only = ((entry_2 >> 9) & 1) ^ 1;
4159 contents = (entry_2 >> 10) & 3;
4160 seg_not_present = ((entry_2 >> 15) & 1) ^ 1;
4161 seg_32bit = (entry_2 >> 22) & 1;
4162 limit_in_pages = (entry_2 >> 23) & 1;
4163 useable = (entry_2 >> 20) & 1;
4164 #ifdef TARGET_ABI32
4165 lm = 0;
4166 #else
4167 lm = (entry_2 >> 21) & 1;
4168 #endif
4169 flags = (seg_32bit << 0) | (contents << 1) |
4170 (read_exec_only << 3) | (limit_in_pages << 4) |
4171 (seg_not_present << 5) | (useable << 6) | (lm << 7);
4172 limit = (entry_1 & 0xffff) | (entry_2 & 0xf0000);
4173 base_addr = (entry_1 >> 16) |
4174 (entry_2 & 0xff000000) |
4175 ((entry_2 & 0xff) << 16);
4176 target_ldt_info->base_addr = tswapal(base_addr);
4177 target_ldt_info->limit = tswap32(limit);
4178 target_ldt_info->flags = tswap32(flags);
4179 unlock_user_struct(target_ldt_info, ptr, 1);
4180 return 0;
4181 }
4182 #endif /* TARGET_I386 && TARGET_ABI32 */
4183
4184 #ifndef TARGET_ABI32
4185 abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr)
4186 {
4187 abi_long ret = 0;
4188 abi_ulong val;
4189 int idx;
4190
4191 switch(code) {
4192 case TARGET_ARCH_SET_GS:
4193 case TARGET_ARCH_SET_FS:
4194 if (code == TARGET_ARCH_SET_GS)
4195 idx = R_GS;
4196 else
4197 idx = R_FS;
4198 cpu_x86_load_seg(env, idx, 0);
4199 env->segs[idx].base = addr;
4200 break;
4201 case TARGET_ARCH_GET_GS:
4202 case TARGET_ARCH_GET_FS:
4203 if (code == TARGET_ARCH_GET_GS)
4204 idx = R_GS;
4205 else
4206 idx = R_FS;
4207 val = env->segs[idx].base;
4208 if (put_user(val, addr, abi_ulong))
4209 ret = -TARGET_EFAULT;
4210 break;
4211 default:
4212 ret = -TARGET_EINVAL;
4213 break;
4214 }
4215 return ret;
4216 }
4217 #endif
4218
4219 #endif /* defined(TARGET_I386) */
4220
4221 #define NEW_STACK_SIZE 0x40000
4222
4223
4224 static pthread_mutex_t clone_lock = PTHREAD_MUTEX_INITIALIZER;
4225 typedef struct {
4226 CPUArchState *env;
4227 pthread_mutex_t mutex;
4228 pthread_cond_t cond;
4229 pthread_t thread;
4230 uint32_t tid;
4231 abi_ulong child_tidptr;
4232 abi_ulong parent_tidptr;
4233 sigset_t sigmask;
4234 } new_thread_info;
4235
4236 static void *clone_func(void *arg)
4237 {
4238 new_thread_info *info = arg;
4239 CPUArchState *env;
4240 CPUState *cpu;
4241 TaskState *ts;
4242
4243 env = info->env;
4244 cpu = ENV_GET_CPU(env);
4245 thread_cpu = cpu;
4246 ts = (TaskState *)env->opaque;
4247 info->tid = gettid();
4248 cpu->host_tid = info->tid;
4249 task_settid(ts);
4250 if (info->child_tidptr)
4251 put_user_u32(info->tid, info->child_tidptr);
4252 if (info->parent_tidptr)
4253 put_user_u32(info->tid, info->parent_tidptr);
4254 /* Enable signals. */
4255 sigprocmask(SIG_SETMASK, &info->sigmask, NULL);
4256 /* Signal to the parent that we're ready. */
4257 pthread_mutex_lock(&info->mutex);
4258 pthread_cond_broadcast(&info->cond);
4259 pthread_mutex_unlock(&info->mutex);
4260 /* Wait until the parent has finshed initializing the tls state. */
4261 pthread_mutex_lock(&clone_lock);
4262 pthread_mutex_unlock(&clone_lock);
4263 cpu_loop(env);
4264 /* never exits */
4265 return NULL;
4266 }
4267
4268 /* do_fork() Must return host values and target errnos (unlike most
4269 do_*() functions). */
4270 static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp,
4271 abi_ulong parent_tidptr, target_ulong newtls,
4272 abi_ulong child_tidptr)
4273 {
4274 int ret;
4275 TaskState *ts;
4276 CPUArchState *new_env;
4277 unsigned int nptl_flags;
4278 sigset_t sigmask;
4279
4280 /* Emulate vfork() with fork() */
4281 if (flags & CLONE_VFORK)
4282 flags &= ~(CLONE_VFORK | CLONE_VM);
4283
4284 if (flags & CLONE_VM) {
4285 TaskState *parent_ts = (TaskState *)env->opaque;
4286 new_thread_info info;
4287 pthread_attr_t attr;
4288
4289 ts = g_malloc0(sizeof(TaskState));
4290 init_task_state(ts);
4291 /* we create a new CPU instance. */
4292 new_env = cpu_copy(env);
4293 #if defined(TARGET_I386) || defined(TARGET_SPARC) || defined(TARGET_PPC)
4294 cpu_reset(ENV_GET_CPU(new_env));
4295 #endif
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 #ifdef TARGET_ARM
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 int get_osversion(void)
4867 {
4868 static int osversion;
4869 struct new_utsname buf;
4870 const char *s;
4871 int i, n, tmp;
4872 if (osversion)
4873 return osversion;
4874 if (qemu_uname_release && *qemu_uname_release) {
4875 s = qemu_uname_release;
4876 } else {
4877 if (sys_uname(&buf))
4878 return 0;
4879 s = buf.release;
4880 }
4881 tmp = 0;
4882 for (i = 0; i < 3; i++) {
4883 n = 0;
4884 while (*s >= '0' && *s <= '9') {
4885 n *= 10;
4886 n += *s - '0';
4887 s++;
4888 }
4889 tmp = (tmp << 8) + n;
4890 if (*s == '.')
4891 s++;
4892 }
4893 osversion = tmp;
4894 return osversion;
4895 }
4896
4897
4898 static int open_self_maps(void *cpu_env, int fd)
4899 {
4900 #if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32)
4901 TaskState *ts = ((CPUArchState *)cpu_env)->opaque;
4902 #endif
4903 FILE *fp;
4904 char *line = NULL;
4905 size_t len = 0;
4906 ssize_t read;
4907
4908 fp = fopen("/proc/self/maps", "r");
4909 if (fp == NULL) {
4910 return -EACCES;
4911 }
4912
4913 while ((read = getline(&line, &len, fp)) != -1) {
4914 int fields, dev_maj, dev_min, inode;
4915 uint64_t min, max, offset;
4916 char flag_r, flag_w, flag_x, flag_p;
4917 char path[512] = "";
4918 fields = sscanf(line, "%"PRIx64"-%"PRIx64" %c%c%c%c %"PRIx64" %x:%x %d"
4919 " %512s", &min, &max, &flag_r, &flag_w, &flag_x,
4920 &flag_p, &offset, &dev_maj, &dev_min, &inode, path);
4921
4922 if ((fields < 10) || (fields > 11)) {
4923 continue;
4924 }
4925 if (!strncmp(path, "[stack]", 7)) {
4926 continue;
4927 }
4928 if (h2g_valid(min) && h2g_valid(max)) {
4929 dprintf(fd, TARGET_ABI_FMT_lx "-" TARGET_ABI_FMT_lx
4930 " %c%c%c%c %08" PRIx64 " %02x:%02x %d %s%s\n",
4931 h2g(min), h2g(max), flag_r, flag_w,
4932 flag_x, flag_p, offset, dev_maj, dev_min, inode,
4933 path[0] ? " " : "", path);
4934 }
4935 }
4936
4937 free(line);
4938 fclose(fp);
4939
4940 #if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32)
4941 dprintf(fd, "%08llx-%08llx rw-p %08llx 00:00 0 [stack]\n",
4942 (unsigned long long)ts->info->stack_limit,
4943 (unsigned long long)(ts->info->start_stack +
4944 (TARGET_PAGE_SIZE - 1)) & TARGET_PAGE_MASK,
4945 (unsigned long long)0);
4946 #endif
4947
4948 return 0;
4949 }
4950
4951 static int open_self_stat(void *cpu_env, int fd)
4952 {
4953 TaskState *ts = ((CPUArchState *)cpu_env)->opaque;
4954 abi_ulong start_stack = ts->info->start_stack;
4955 int i;
4956
4957 for (i = 0; i < 44; i++) {
4958 char buf[128];
4959 int len;
4960 uint64_t val = 0;
4961
4962 if (i == 0) {
4963 /* pid */
4964 val = getpid();
4965 snprintf(buf, sizeof(buf), "%"PRId64 " ", val);
4966 } else if (i == 1) {
4967 /* app name */
4968 snprintf(buf, sizeof(buf), "(%s) ", ts->bprm->argv[0]);
4969 } else if (i == 27) {
4970 /* stack bottom */
4971 val = start_stack;
4972 snprintf(buf, sizeof(buf), "%"PRId64 " ", val);
4973 } else {
4974 /* for the rest, there is MasterCard */
4975 snprintf(buf, sizeof(buf), "0%c", i == 43 ? '\n' : ' ');
4976 }
4977
4978 len = strlen(buf);
4979 if (write(fd, buf, len) != len) {
4980 return -1;
4981 }
4982 }
4983
4984 return 0;
4985 }
4986
4987 static int open_self_auxv(void *cpu_env, int fd)
4988 {
4989 TaskState *ts = ((CPUArchState *)cpu_env)->opaque;
4990 abi_ulong auxv = ts->info->saved_auxv;
4991 abi_ulong len = ts->info->auxv_len;
4992 char *ptr;
4993
4994 /*
4995 * Auxiliary vector is stored in target process stack.
4996 * read in whole auxv vector and copy it to file
4997 */
4998 ptr = lock_user(VERIFY_READ, auxv, len, 0);
4999 if (ptr != NULL) {
5000 while (len > 0) {
5001 ssize_t r;
5002 r = write(fd, ptr, len);
5003 if (r <= 0) {
5004 break;
5005 }
5006 len -= r;
5007 ptr += r;
5008 }
5009 lseek(fd, 0, SEEK_SET);
5010 unlock_user(ptr, auxv, len);
5011 }
5012
5013 return 0;
5014 }
5015
5016 static int is_proc_myself(const char *filename, const char *entry)
5017 {
5018 if (!strncmp(filename, "/proc/", strlen("/proc/"))) {
5019 filename += strlen("/proc/");
5020 if (!strncmp(filename, "self/", strlen("self/"))) {
5021 filename += strlen("self/");
5022 } else if (*filename >= '1' && *filename <= '9') {
5023 char myself[80];
5024 snprintf(myself, sizeof(myself), "%d/", getpid());
5025 if (!strncmp(filename, myself, strlen(myself))) {
5026 filename += strlen(myself);
5027 } else {
5028 return 0;
5029 }
5030 } else {
5031 return 0;
5032 }
5033 if (!strcmp(filename, entry)) {
5034 return 1;
5035 }
5036 }
5037 return 0;
5038 }
5039
5040 static int do_open(void *cpu_env, const char *pathname, int flags, mode_t mode)
5041 {
5042 struct fake_open {
5043 const char *filename;
5044 int (*fill)(void *cpu_env, int fd);
5045 };
5046 const struct fake_open *fake_open;
5047 static const struct fake_open fakes[] = {
5048 { "maps", open_self_maps },
5049 { "stat", open_self_stat },
5050 { "auxv", open_self_auxv },
5051 { NULL, NULL }
5052 };
5053
5054 for (fake_open = fakes; fake_open->filename; fake_open++) {
5055 if (is_proc_myself(pathname, fake_open->filename)) {
5056 break;
5057 }
5058 }
5059
5060 if (fake_open->filename) {
5061 const char *tmpdir;
5062 char filename[PATH_MAX];
5063 int fd, r;
5064
5065 /* create temporary file to map stat to */
5066 tmpdir = getenv("TMPDIR");
5067 if (!tmpdir)
5068 tmpdir = "/tmp";
5069 snprintf(filename, sizeof(filename), "%s/qemu-open.XXXXXX", tmpdir);
5070 fd = mkstemp(filename);
5071 if (fd < 0) {
5072 return fd;
5073 }
5074 unlink(filename);
5075
5076 if ((r = fake_open->fill(cpu_env, fd))) {
5077 close(fd);
5078 return r;
5079 }
5080 lseek(fd, 0, SEEK_SET);
5081
5082 return fd;
5083 }
5084
5085 return get_errno(open(path(pathname), flags, mode));
5086 }
5087
5088 /* do_syscall() should always have a single exit point at the end so
5089 that actions, such as logging of syscall results, can be performed.
5090 All errnos that do_syscall() returns must be -TARGET_<errcode>. */
5091 abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
5092 abi_long arg2, abi_long arg3, abi_long arg4,
5093 abi_long arg5, abi_long arg6, abi_long arg7,
5094 abi_long arg8)
5095 {
5096 CPUState *cpu = ENV_GET_CPU(cpu_env);
5097 abi_long ret;
5098 struct stat st;
5099 struct statfs stfs;
5100 void *p;
5101
5102 #ifdef DEBUG
5103 gemu_log("syscall %d", num);
5104 #endif
5105 if(do_strace)
5106 print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6);
5107
5108 switch(num) {
5109 case TARGET_NR_exit:
5110 /* In old applications this may be used to implement _exit(2).
5111 However in threaded applictions it is used for thread termination,
5112 and _exit_group is used for application termination.
5113 Do thread termination if we have more then one thread. */
5114 /* FIXME: This probably breaks if a signal arrives. We should probably
5115 be disabling signals. */
5116 if (first_cpu->next_cpu) {
5117 TaskState *ts;
5118 CPUState **lastp;
5119 CPUState *p;
5120
5121 cpu_list_lock();
5122 lastp = &first_cpu;
5123 p = first_cpu;
5124 while (p && p != cpu) {
5125 lastp = &p->next_cpu;
5126 p = p->next_cpu;
5127 }
5128 /* If we didn't find the CPU for this thread then something is
5129 horribly wrong. */
5130 if (!p) {
5131 abort();
5132 }
5133 /* Remove the CPU from the list. */
5134 *lastp = p->next_cpu;
5135 cpu_list_unlock();
5136 ts = ((CPUArchState *)cpu_env)->opaque;
5137 if (ts->child_tidptr) {
5138 put_user_u32(0, ts->child_tidptr);
5139 sys_futex(g2h(ts->child_tidptr), FUTEX_WAKE, INT_MAX,
5140 NULL, NULL, 0);
5141 }
5142 thread_cpu = NULL;
5143 object_unref(OBJECT(ENV_GET_CPU(cpu_env)));
5144 g_free(ts);
5145 pthread_exit(NULL);
5146 }
5147 #ifdef TARGET_GPROF
5148 _mcleanup();
5149 #endif
5150 gdb_exit(cpu_env, arg1);
5151 _exit(arg1);
5152 ret = 0; /* avoid warning */
5153 break;
5154 case TARGET_NR_read:
5155 if (arg3 == 0)
5156 ret = 0;
5157 else {
5158 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
5159 goto efault;
5160 ret = get_errno(read(arg1, p, arg3));
5161 unlock_user(p, arg2, ret);
5162 }
5163 break;
5164 case TARGET_NR_write:
5165 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
5166 goto efault;
5167 ret = get_errno(write(arg1, p, arg3));
5168 unlock_user(p, arg2, 0);
5169 break;
5170 case TARGET_NR_open:
5171 if (!(p = lock_user_string(arg1)))
5172 goto efault;
5173 ret = get_errno(do_open(cpu_env, p,
5174 target_to_host_bitmask(arg2, fcntl_flags_tbl),
5175 arg3));
5176 unlock_user(p, arg1, 0);
5177 break;
5178 #if defined(TARGET_NR_openat) && defined(__NR_openat)
5179 case TARGET_NR_openat:
5180 if (!(p = lock_user_string(arg2)))
5181 goto efault;
5182 ret = get_errno(sys_openat(arg1,
5183 path(p),
5184 target_to_host_bitmask(arg3, fcntl_flags_tbl),
5185 arg4));
5186 unlock_user(p, arg2, 0);
5187 break;
5188 #endif
5189 case TARGET_NR_close:
5190 ret = get_errno(close(arg1));
5191 break;
5192 case TARGET_NR_brk:
5193 ret = do_brk(arg1);
5194 break;
5195 case TARGET_NR_fork:
5196 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0, 0, 0, 0));
5197 break;
5198 #ifdef TARGET_NR_waitpid
5199 case TARGET_NR_waitpid:
5200 {
5201 int status;
5202 ret = get_errno(waitpid(arg1, &status, arg3));
5203 if (!is_error(ret) && arg2 && ret
5204 && put_user_s32(host_to_target_waitstatus(status), arg2))
5205 goto efault;
5206 }
5207 break;
5208 #endif
5209 #ifdef TARGET_NR_waitid
5210 case TARGET_NR_waitid:
5211 {
5212 siginfo_t info;
5213 info.si_pid = 0;
5214 ret = get_errno(waitid(arg1, arg2, &info, arg4));
5215 if (!is_error(ret) && arg3 && info.si_pid != 0) {
5216 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_siginfo_t), 0)))
5217 goto efault;
5218 host_to_target_siginfo(p, &info);
5219 unlock_user(p, arg3, sizeof(target_siginfo_t));
5220 }
5221 }
5222 break;
5223 #endif
5224 #ifdef TARGET_NR_creat /* not on alpha */
5225 case TARGET_NR_creat:
5226 if (!(p = lock_user_string(arg1)))
5227 goto efault;
5228 ret = get_errno(creat(p, arg2));
5229 unlock_user(p, arg1, 0);
5230 break;
5231 #endif
5232 case TARGET_NR_link:
5233 {
5234 void * p2;
5235 p = lock_user_string(arg1);
5236 p2 = lock_user_string(arg2);
5237 if (!p || !p2)
5238 ret = -TARGET_EFAULT;
5239 else
5240 ret = get_errno(link(p, p2));
5241 unlock_user(p2, arg2, 0);
5242 unlock_user(p, arg1, 0);
5243 }
5244 break;
5245 #if defined(TARGET_NR_linkat)
5246 case TARGET_NR_linkat:
5247 {
5248 void * p2 = NULL;
5249 if (!arg2 || !arg4)
5250 goto efault;
5251 p = lock_user_string(arg2);
5252 p2 = lock_user_string(arg4);
5253 if (!p || !p2)
5254 ret = -TARGET_EFAULT;
5255 else
5256 ret = get_errno(linkat(arg1, p, arg3, p2, arg5));
5257 unlock_user(p, arg2, 0);
5258 unlock_user(p2, arg4, 0);
5259 }
5260 break;
5261 #endif
5262 case TARGET_NR_unlink:
5263 if (!(p = lock_user_string(arg1)))
5264 goto efault;
5265 ret = get_errno(unlink(p));
5266 unlock_user(p, arg1, 0);
5267 break;
5268 #if defined(TARGET_NR_unlinkat)
5269 case TARGET_NR_unlinkat:
5270 if (!(p = lock_user_string(arg2)))
5271 goto efault;
5272 ret = get_errno(unlinkat(arg1, p, arg3));
5273 unlock_user(p, arg2, 0);
5274 break;
5275 #endif
5276 case TARGET_NR_execve:
5277 {
5278 char **argp, **envp;
5279 int argc, envc;
5280 abi_ulong gp;
5281 abi_ulong guest_argp;
5282 abi_ulong guest_envp;
5283 abi_ulong addr;
5284 char **q;
5285 int total_size = 0;
5286
5287 argc = 0;
5288 guest_argp = arg2;
5289 for (gp = guest_argp; gp; gp += sizeof(abi_ulong)) {
5290 if (get_user_ual(addr, gp))
5291 goto efault;
5292 if (!addr)
5293 break;
5294 argc++;
5295 }
5296 envc = 0;
5297 guest_envp = arg3;
5298 for (gp = guest_envp; gp; gp += sizeof(abi_ulong)) {
5299 if (get_user_ual(addr, gp))
5300 goto efault;
5301 if (!addr)
5302 break;
5303 envc++;
5304 }
5305
5306 argp = alloca((argc + 1) * sizeof(void *));
5307 envp = alloca((envc + 1) * sizeof(void *));
5308
5309 for (gp = guest_argp, q = argp; gp;
5310 gp += sizeof(abi_ulong), q++) {
5311 if (get_user_ual(addr, gp))
5312 goto execve_efault;
5313 if (!addr)
5314 break;
5315 if (!(*q = lock_user_string(addr)))
5316 goto execve_efault;
5317 total_size += strlen(*q) + 1;
5318 }
5319 *q = NULL;
5320
5321 for (gp = guest_envp, q = envp; gp;
5322 gp += sizeof(abi_ulong), q++) {
5323 if (get_user_ual(addr, gp))
5324 goto execve_efault;
5325 if (!addr)
5326 break;
5327 if (!(*q = lock_user_string(addr)))
5328 goto execve_efault;
5329 total_size += strlen(*q) + 1;
5330 }
5331 *q = NULL;
5332
5333 /* This case will not be caught by the host's execve() if its
5334 page size is bigger than the target's. */
5335 if (total_size > MAX_ARG_PAGES * TARGET_PAGE_SIZE) {
5336 ret = -TARGET_E2BIG;
5337 goto execve_end;
5338 }
5339 if (!(p = lock_user_string(arg1)))
5340 goto execve_efault;
5341 ret = get_errno(execve(p, argp, envp));
5342 unlock_user(p, arg1, 0);
5343
5344 goto execve_end;
5345
5346 execve_efault:
5347 ret = -TARGET_EFAULT;
5348
5349 execve_end:
5350 for (gp = guest_argp, q = argp; *q;
5351 gp += sizeof(abi_ulong), q++) {
5352 if (get_user_ual(addr, gp)
5353 || !addr)
5354 break;
5355 unlock_user(*q, addr, 0);
5356 }
5357 for (gp = guest_envp, q = envp; *q;
5358 gp += sizeof(abi_ulong), q++) {
5359 if (get_user_ual(addr, gp)
5360 || !addr)
5361 break;
5362 unlock_user(*q, addr, 0);
5363 }
5364 }
5365 break;
5366 case TARGET_NR_chdir:
5367 if (!(p = lock_user_string(arg1)))
5368 goto efault;
5369 ret = get_errno(chdir(p));
5370 unlock_user(p, arg1, 0);
5371 break;
5372 #ifdef TARGET_NR_time
5373 case TARGET_NR_time:
5374 {
5375 time_t host_time;
5376 ret = get_errno(time(&host_time));
5377 if (!is_error(ret)
5378 && arg1
5379 && put_user_sal(host_time, arg1))
5380 goto efault;
5381 }
5382 break;
5383 #endif
5384 case TARGET_NR_mknod:
5385 if (!(p = lock_user_string(arg1)))
5386 goto efault;
5387 ret = get_errno(mknod(p, arg2, arg3));
5388 unlock_user(p, arg1, 0);
5389 break;
5390 #if defined(TARGET_NR_mknodat)
5391 case TARGET_NR_mknodat:
5392 if (!(p = lock_user_string(arg2)))
5393 goto efault;
5394 ret = get_errno(mknodat(arg1, p, arg3, arg4));
5395 unlock_user(p, arg2, 0);
5396 break;
5397 #endif
5398 case TARGET_NR_chmod:
5399 if (!(p = lock_user_string(arg1)))
5400 goto efault;
5401 ret = get_errno(chmod(p, arg2));
5402 unlock_user(p, arg1, 0);
5403 break;
5404 #ifdef TARGET_NR_break
5405 case TARGET_NR_break:
5406 goto unimplemented;
5407 #endif
5408 #ifdef TARGET_NR_oldstat
5409 case TARGET_NR_oldstat:
5410 goto unimplemented;
5411 #endif
5412 case TARGET_NR_lseek:
5413 ret = get_errno(lseek(arg1, arg2, arg3));
5414 break;
5415 #if defined(TARGET_NR_getxpid) && defined(TARGET_ALPHA)
5416 /* Alpha specific */
5417 case TARGET_NR_getxpid:
5418 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = getppid();
5419 ret = get_errno(getpid());
5420 break;
5421 #endif
5422 #ifdef TARGET_NR_getpid
5423 case TARGET_NR_getpid:
5424 ret = get_errno(getpid());
5425 break;
5426 #endif
5427 case TARGET_NR_mount:
5428 {
5429 /* need to look at the data field */
5430 void *p2, *p3;
5431 p = lock_user_string(arg1);
5432 p2 = lock_user_string(arg2);
5433 p3 = lock_user_string(arg3);
5434 if (!p || !p2 || !p3)
5435 ret = -TARGET_EFAULT;
5436 else {
5437 /* FIXME - arg5 should be locked, but it isn't clear how to
5438 * do that since it's not guaranteed to be a NULL-terminated
5439 * string.
5440 */
5441 if ( ! arg5 )
5442 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, NULL));
5443 else
5444 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, g2h(arg5)));
5445 }
5446 unlock_user(p, arg1, 0);
5447 unlock_user(p2, arg2, 0);
5448 unlock_user(p3, arg3, 0);
5449 break;
5450 }
5451 #ifdef TARGET_NR_umount
5452 case TARGET_NR_umount:
5453 if (!(p = lock_user_string(arg1)))
5454 goto efault;
5455 ret = get_errno(umount(p));
5456 unlock_user(p, arg1, 0);
5457 break;
5458 #endif
5459 #ifdef TARGET_NR_stime /* not on alpha */
5460 case TARGET_NR_stime:
5461 {
5462 time_t host_time;
5463 if (get_user_sal(host_time, arg1))
5464 goto efault;
5465 ret = get_errno(stime(&host_time));
5466 }
5467 break;
5468 #endif
5469 case TARGET_NR_ptrace:
5470 goto unimplemented;
5471 #ifdef TARGET_NR_alarm /* not on alpha */
5472 case TARGET_NR_alarm:
5473 ret = alarm(arg1);
5474 break;
5475 #endif
5476 #ifdef TARGET_NR_oldfstat
5477 case TARGET_NR_oldfstat:
5478 goto unimplemented;
5479 #endif
5480 #ifdef TARGET_NR_pause /* not on alpha */
5481 case TARGET_NR_pause:
5482 ret = get_errno(pause());
5483 break;
5484 #endif
5485 #ifdef TARGET_NR_utime
5486 case TARGET_NR_utime:
5487 {
5488 struct utimbuf tbuf, *host_tbuf;
5489 struct target_utimbuf *target_tbuf;
5490 if (arg2) {
5491 if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1))
5492 goto efault;
5493 tbuf.actime = tswapal(target_tbuf->actime);
5494 tbuf.modtime = tswapal(target_tbuf->modtime);
5495 unlock_user_struct(target_tbuf, arg2, 0);
5496 host_tbuf = &tbuf;
5497 } else {
5498 host_tbuf = NULL;
5499 }
5500 if (!(p = lock_user_string(arg1)))
5501 goto efault;
5502 ret = get_errno(utime(p, host_tbuf));
5503 unlock_user(p, arg1, 0);
5504 }
5505 break;
5506 #endif
5507 case TARGET_NR_utimes:
5508 {
5509 struct timeval *tvp, tv[2];
5510 if (arg2) {
5511 if (copy_from_user_timeval(&tv[0], arg2)
5512 || copy_from_user_timeval(&tv[1],
5513 arg2 + sizeof(struct target_timeval)))
5514 goto efault;
5515 tvp = tv;
5516 } else {
5517 tvp = NULL;
5518 }
5519 if (!(p = lock_user_string(arg1)))
5520 goto efault;
5521 ret = get_errno(utimes(p, tvp));
5522 unlock_user(p, arg1, 0);
5523 }
5524 break;
5525 #if defined(TARGET_NR_futimesat)
5526 case TARGET_NR_futimesat:
5527 {
5528 struct timeval *tvp, tv[2];
5529 if (arg3) {
5530 if (copy_from_user_timeval(&tv[0], arg3)
5531 || copy_from_user_timeval(&tv[1],
5532 arg3 + sizeof(struct target_timeval)))
5533 goto efault;
5534 tvp = tv;
5535 } else {
5536 tvp = NULL;
5537 }
5538 if (!(p = lock_user_string(arg2)))
5539 goto efault;
5540 ret = get_errno(futimesat(arg1, path(p), tvp));
5541 unlock_user(p, arg2, 0);
5542 }
5543 break;
5544 #endif
5545 #ifdef TARGET_NR_stty
5546 case TARGET_NR_stty:
5547 goto unimplemented;
5548 #endif
5549 #ifdef TARGET_NR_gtty
5550 case TARGET_NR_gtty:
5551 goto unimplemented;
5552 #endif
5553 case TARGET_NR_access:
5554 if (!(p = lock_user_string(arg1)))
5555 goto efault;
5556 ret = get_errno(access(path(p), arg2));
5557 unlock_user(p, arg1, 0);
5558 break;
5559 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
5560 case TARGET_NR_faccessat:
5561 if (!(p = lock_user_string(arg2)))
5562 goto efault;
5563 ret = get_errno(faccessat(arg1, p, arg3, 0));
5564 unlock_user(p, arg2, 0);
5565 break;
5566 #endif
5567 #ifdef TARGET_NR_nice /* not on alpha */
5568 case TARGET_NR_nice:
5569 ret = get_errno(nice(arg1));
5570 break;
5571 #endif
5572 #ifdef TARGET_NR_ftime
5573 case TARGET_NR_ftime:
5574 goto unimplemented;
5575 #endif
5576 case TARGET_NR_sync:
5577 sync();
5578 ret = 0;
5579 break;
5580 case TARGET_NR_kill:
5581 ret = get_errno(kill(arg1, target_to_host_signal(arg2)));
5582 break;
5583 case TARGET_NR_rename:
5584 {
5585 void *p2;
5586 p = lock_user_string(arg1);
5587 p2 = lock_user_string(arg2);
5588 if (!p || !p2)
5589 ret = -TARGET_EFAULT;
5590 else
5591 ret = get_errno(rename(p, p2));
5592 unlock_user(p2, arg2, 0);
5593 unlock_user(p, arg1, 0);
5594 }
5595 break;
5596 #if defined(TARGET_NR_renameat)
5597 case TARGET_NR_renameat:
5598 {
5599 void *p2;
5600 p = lock_user_string(arg2);
5601 p2 = lock_user_string(arg4);
5602 if (!p || !p2)
5603 ret = -TARGET_EFAULT;
5604 else
5605 ret = get_errno(renameat(arg1, p, arg3, p2));
5606 unlock_user(p2, arg4, 0);
5607 unlock_user(p, arg2, 0);
5608 }
5609 break;
5610 #endif
5611 case TARGET_NR_mkdir:
5612 if (!(p = lock_user_string(arg1)))
5613 goto efault;
5614 ret = get_errno(mkdir(p, arg2));
5615 unlock_user(p, arg1, 0);
5616 break;
5617 #if defined(TARGET_NR_mkdirat)
5618 case TARGET_NR_mkdirat:
5619 if (!(p = lock_user_string(arg2)))
5620 goto efault;
5621 ret = get_errno(mkdirat(arg1, p, arg3));
5622 unlock_user(p, arg2, 0);
5623 break;
5624 #endif
5625 case TARGET_NR_rmdir:
5626 if (!(p = lock_user_string(arg1)))
5627 goto efault;
5628 ret = get_errno(rmdir(p));
5629 unlock_user(p, arg1, 0);
5630 break;
5631 case TARGET_NR_dup:
5632 ret = get_errno(dup(arg1));
5633 break;
5634 case TARGET_NR_pipe:
5635 ret = do_pipe(cpu_env, arg1, 0, 0);
5636 break;
5637 #ifdef TARGET_NR_pipe2
5638 case TARGET_NR_pipe2:
5639 ret = do_pipe(cpu_env, arg1,
5640 target_to_host_bitmask(arg2, fcntl_flags_tbl), 1);
5641 break;
5642 #endif
5643 case TARGET_NR_times:
5644 {
5645 struct target_tms *tmsp;
5646 struct tms tms;
5647 ret = get_errno(times(&tms));
5648 if (arg1) {
5649 tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0);
5650 if (!tmsp)
5651 goto efault;
5652 tmsp->tms_utime = tswapal(host_to_target_clock_t(tms.tms_utime));
5653 tmsp->tms_stime = tswapal(host_to_target_clock_t(tms.tms_stime));
5654 tmsp->tms_cutime = tswapal(host_to_target_clock_t(tms.tms_cutime));
5655 tmsp->tms_cstime = tswapal(host_to_target_clock_t(tms.tms_cstime));
5656 }
5657 if (!is_error(ret))
5658 ret = host_to_target_clock_t(ret);
5659 }
5660 break;
5661 #ifdef TARGET_NR_prof
5662 case TARGET_NR_prof:
5663 goto unimplemented;
5664 #endif
5665 #ifdef TARGET_NR_signal
5666 case TARGET_NR_signal:
5667 goto unimplemented;
5668 #endif
5669 case TARGET_NR_acct:
5670 if (arg1 == 0) {
5671 ret = get_errno(acct(NULL));
5672 } else {
5673 if (!(p = lock_user_string(arg1)))
5674 goto efault;
5675 ret = get_errno(acct(path(p)));
5676 unlock_user(p, arg1, 0);
5677 }
5678 break;
5679 #ifdef TARGET_NR_umount2 /* not on alpha */
5680 case TARGET_NR_umount2:
5681 if (!(p = lock_user_string(arg1)))
5682 goto efault;
5683 ret = get_errno(umount2(p, arg2));
5684 unlock_user(p, arg1, 0);
5685 break;
5686 #endif
5687 #ifdef TARGET_NR_lock
5688 case TARGET_NR_lock:
5689 goto unimplemented;
5690 #endif
5691 case TARGET_NR_ioctl:
5692 ret = do_ioctl(arg1, arg2, arg3);
5693 break;
5694 case TARGET_NR_fcntl:
5695 ret = do_fcntl(arg1, arg2, arg3);
5696 break;
5697 #ifdef TARGET_NR_mpx
5698 case TARGET_NR_mpx:
5699 goto unimplemented;
5700 #endif
5701 case TARGET_NR_setpgid:
5702 ret = get_errno(setpgid(arg1, arg2));
5703 break;
5704 #ifdef TARGET_NR_ulimit
5705 case TARGET_NR_ulimit:
5706 goto unimplemented;
5707 #endif
5708 #ifdef TARGET_NR_oldolduname
5709 case TARGET_NR_oldolduname:
5710 goto unimplemented;
5711 #endif
5712 case TARGET_NR_umask:
5713 ret = get_errno(umask(arg1));
5714 break;
5715 case TARGET_NR_chroot:
5716 if (!(p = lock_user_string(arg1)))
5717 goto efault;
5718 ret = get_errno(chroot(p));
5719 unlock_user(p, arg1, 0);
5720 break;
5721 case TARGET_NR_ustat:
5722 goto unimplemented;
5723 case TARGET_NR_dup2:
5724 ret = get_errno(dup2(arg1, arg2));
5725 break;
5726 #if defined(CONFIG_DUP3) && defined(TARGET_NR_dup3)
5727 case TARGET_NR_dup3:
5728 ret = get_errno(dup3(arg1, arg2, arg3));
5729 break;
5730 #endif
5731 #ifdef TARGET_NR_getppid /* not on alpha */
5732 case TARGET_NR_getppid:
5733 ret = get_errno(getppid());
5734 break;
5735 #endif
5736 case TARGET_NR_getpgrp:
5737 ret = get_errno(getpgrp());
5738 break;
5739 case TARGET_NR_setsid:
5740 ret = get_errno(setsid());
5741 break;
5742 #ifdef TARGET_NR_sigaction
5743 case TARGET_NR_sigaction:
5744 {
5745 #if defined(TARGET_ALPHA)
5746 struct target_sigaction act, oact, *pact = 0;
5747 struct target_old_sigaction *old_act;
5748 if (arg2) {
5749 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
5750 goto efault;
5751 act._sa_handler = old_act->_sa_handler;
5752 target_siginitset(&act.sa_mask, old_act->sa_mask);
5753 act.sa_flags = old_act->sa_flags;
5754 act.sa_restorer = 0;
5755 unlock_user_struct(old_act, arg2, 0);
5756 pact = &act;
5757 }
5758 ret = get_errno(do_sigaction(arg1, pact, &oact));
5759 if (!is_error(ret) && arg3) {
5760 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
5761 goto efault;
5762 old_act->_sa_handler = oact._sa_handler;
5763 old_act->sa_mask = oact.sa_mask.sig[0];
5764 old_act->sa_flags = oact.sa_flags;
5765 unlock_user_struct(old_act, arg3, 1);
5766 }
5767 #elif defined(TARGET_MIPS)
5768 struct target_sigaction act, oact, *pact, *old_act;
5769
5770 if (arg2) {
5771 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
5772 goto efault;
5773 act._sa_handler = old_act->_sa_handler;
5774 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
5775 act.sa_flags = old_act->sa_flags;
5776 unlock_user_struct(old_act, arg2, 0);
5777 pact = &act;
5778 } else {
5779 pact = NULL;
5780 }
5781
5782 ret = get_errno(do_sigaction(arg1, pact, &oact));
5783
5784 if (!is_error(ret) && arg3) {
5785 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
5786 goto efault;
5787 old_act->_sa_handler = oact._sa_handler;
5788 old_act->sa_flags = oact.sa_flags;
5789 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
5790 old_act->sa_mask.sig[1] = 0;
5791 old_act->sa_mask.sig[2] = 0;
5792 old_act->sa_mask.sig[3] = 0;
5793 unlock_user_struct(old_act, arg3, 1);
5794 }
5795 #else
5796 struct target_old_sigaction *old_act;
5797 struct target_sigaction act, oact, *pact;
5798 if (arg2) {
5799 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
5800 goto efault;
5801 act._sa_handler = old_act->_sa_handler;
5802 target_siginitset(&act.sa_mask, old_act->sa_mask);
5803 act.sa_flags = old_act->sa_flags;
5804 act.sa_restorer = old_act->sa_restorer;
5805 unlock_user_struct(old_act, arg2, 0);
5806 pact = &act;
5807 } else {
5808 pact = NULL;
5809 }
5810 ret = get_errno(do_sigaction(arg1, pact, &oact));
5811 if (!is_error(ret) && arg3) {
5812 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
5813 goto efault;
5814 old_act->_sa_handler = oact._sa_handler;
5815 old_act->sa_mask = oact.sa_mask.sig[0];
5816 old_act->sa_flags = oact.sa_flags;
5817 old_act->sa_restorer = oact.sa_restorer;
5818 unlock_user_struct(old_act, arg3, 1);
5819 }
5820 #endif
5821 }
5822 break;
5823 #endif
5824 case TARGET_NR_rt_sigaction:
5825 {
5826 #if defined(TARGET_ALPHA)
5827 struct target_sigaction act, oact, *pact = 0;
5828 struct target_rt_sigaction *rt_act;
5829 /* ??? arg4 == sizeof(sigset_t). */
5830 if (arg2) {
5831 if (!lock_user_struct(VERIFY_READ, rt_act, arg2, 1))
5832 goto efault;
5833 act._sa_handler = rt_act->_sa_handler;
5834 act.sa_mask = rt_act->sa_mask;
5835 act.sa_flags = rt_act->sa_flags;
5836 act.sa_restorer = arg5;
5837 unlock_user_struct(rt_act, arg2, 0);
5838 pact = &act;
5839 }
5840 ret = get_errno(do_sigaction(arg1, pact, &oact));
5841 if (!is_error(ret) && arg3) {
5842 if (!lock_user_struct(VERIFY_WRITE, rt_act, arg3, 0))
5843 goto efault;
5844 rt_act->_sa_handler = oact._sa_handler;
5845 rt_act->sa_mask = oact.sa_mask;
5846 rt_act->sa_flags = oact.sa_flags;
5847 unlock_user_struct(rt_act, arg3, 1);
5848 }
5849 #else
5850 struct target_sigaction *act;
5851 struct target_sigaction *oact;
5852
5853 if (arg2) {
5854 if (!lock_user_struct(VERIFY_READ, act, arg2, 1))
5855 goto efault;
5856 } else
5857 act = NULL;
5858 if (arg3) {
5859 if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) {
5860 ret = -TARGET_EFAULT;
5861 goto rt_sigaction_fail;
5862 }
5863 } else
5864 oact = NULL;
5865 ret = get_errno(do_sigaction(arg1, act, oact));
5866 rt_sigaction_fail:
5867 if (act)
5868 unlock_user_struct(act, arg2, 0);
5869 if (oact)
5870 unlock_user_struct(oact, arg3, 1);
5871 #endif
5872 }
5873 break;
5874 #ifdef TARGET_NR_sgetmask /* not on alpha */
5875 case TARGET_NR_sgetmask:
5876 {
5877 sigset_t cur_set;
5878 abi_ulong target_set;
5879 sigprocmask(0, NULL, &cur_set);
5880 host_to_target_old_sigset(&target_set, &cur_set);
5881 ret = target_set;
5882 }
5883 break;
5884 #endif
5885 #ifdef TARGET_NR_ssetmask /* not on alpha */
5886 case TARGET_NR_ssetmask:
5887 {
5888 sigset_t set, oset, cur_set;
5889 abi_ulong target_set = arg1;
5890 sigprocmask(0, NULL, &cur_set);
5891 target_to_host_old_sigset(&set, &target_set);
5892 sigorset(&set, &set, &cur_set);
5893 sigprocmask(SIG_SETMASK, &set, &oset);
5894 host_to_target_old_sigset(&target_set, &oset);
5895 ret = target_set;
5896 }
5897 break;
5898 #endif
5899 #ifdef TARGET_NR_sigprocmask
5900 case TARGET_NR_sigprocmask:
5901 {
5902 #if defined(TARGET_ALPHA)
5903 sigset_t set, oldset;
5904 abi_ulong mask;
5905 int how;
5906
5907 switch (arg1) {
5908 case TARGET_SIG_BLOCK:
5909 how = SIG_BLOCK;
5910 break;
5911 case TARGET_SIG_UNBLOCK:
5912 how = SIG_UNBLOCK;
5913 break;
5914 case TARGET_SIG_SETMASK:
5915 how = SIG_SETMASK;
5916 break;
5917 default:
5918 ret = -TARGET_EINVAL;
5919 goto fail;
5920 }
5921 mask = arg2;
5922 target_to_host_old_sigset(&set, &mask);
5923
5924 ret = get_errno(sigprocmask(how, &set, &oldset));
5925 if (!is_error(ret)) {
5926 host_to_target_old_sigset(&mask, &oldset);
5927 ret = mask;
5928 ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0; /* force no error */
5929 }
5930 #else
5931 sigset_t set, oldset, *set_ptr;
5932 int how;
5933
5934 if (arg2) {
5935 switch (arg1) {
5936 case TARGET_SIG_BLOCK:
5937 how = SIG_BLOCK;
5938 break;
5939 case TARGET_SIG_UNBLOCK:
5940 how = SIG_UNBLOCK;
5941 break;
5942 case TARGET_SIG_SETMASK:
5943 how = SIG_SETMASK;
5944 break;
5945 default:
5946 ret = -TARGET_EINVAL;
5947 goto fail;
5948 }
5949 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
5950 goto efault;
5951 target_to_host_old_sigset(&set, p);
5952 unlock_user(p, arg2, 0);
5953 set_ptr = &set;
5954 } else {
5955 how = 0;
5956 set_ptr = NULL;
5957 }
5958 ret = get_errno(sigprocmask(how, set_ptr, &oldset));
5959 if (!is_error(ret) && arg3) {
5960 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
5961 goto efault;
5962 host_to_target_old_sigset(p, &oldset);
5963 unlock_user(p, arg3, sizeof(target_sigset_t));
5964 }
5965 #endif
5966 }
5967 break;
5968 #endif
5969 case TARGET_NR_rt_sigprocmask:
5970 {
5971 int how = arg1;
5972 sigset_t set, oldset, *set_ptr;
5973
5974 if (arg2) {
5975 switch(how) {
5976 case TARGET_SIG_BLOCK:
5977 how = SIG_BLOCK;
5978 break;
5979 case TARGET_SIG_UNBLOCK:
5980 how = SIG_UNBLOCK;
5981 break;
5982 case TARGET_SIG_SETMASK:
5983 how = SIG_SETMASK;
5984 break;
5985 default:
5986 ret = -TARGET_EINVAL;
5987 goto fail;
5988 }
5989 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
5990 goto efault;
5991 target_to_host_sigset(&set, p);
5992 unlock_user(p, arg2, 0);
5993 set_ptr = &set;
5994 } else {
5995 how = 0;
5996 set_ptr = NULL;
5997 }
5998 ret = get_errno(sigprocmask(how, set_ptr, &oldset));
5999 if (!is_error(ret) && arg3) {
6000 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
6001 goto efault;
6002 host_to_target_sigset(p, &oldset);
6003 unlock_user(p, arg3, sizeof(target_sigset_t));
6004 }
6005 }
6006 break;
6007 #ifdef TARGET_NR_sigpending
6008 case TARGET_NR_sigpending:
6009 {
6010 sigset_t set;
6011 ret = get_errno(sigpending(&set));
6012 if (!is_error(ret)) {
6013 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
6014 goto efault;
6015 host_to_target_old_sigset(p, &set);
6016 unlock_user(p, arg1, sizeof(target_sigset_t));
6017 }
6018 }
6019 break;
6020 #endif
6021 case TARGET_NR_rt_sigpending:
6022 {
6023 sigset_t set;
6024 ret = get_errno(sigpending(&set));
6025 if (!is_error(ret)) {
6026 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
6027 goto efault;
6028 host_to_target_sigset(p, &set);
6029 unlock_user(p, arg1, sizeof(target_sigset_t));
6030 }
6031 }
6032 break;
6033 #ifdef TARGET_NR_sigsuspend
6034 case TARGET_NR_sigsuspend:
6035 {
6036 sigset_t set;
6037 #if defined(TARGET_ALPHA)
6038 abi_ulong mask = arg1;
6039 target_to_host_old_sigset(&set, &mask);
6040 #else
6041 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
6042 goto efault;
6043 target_to_host_old_sigset(&set, p);
6044 unlock_user(p, arg1, 0);
6045 #endif
6046 ret = get_errno(sigsuspend(&set));
6047 }
6048 break;
6049 #endif
6050 case TARGET_NR_rt_sigsuspend:
6051 {
6052 sigset_t set;
6053 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
6054 goto efault;
6055 target_to_host_sigset(&set, p);
6056 unlock_user(p, arg1, 0);
6057 ret = get_errno(sigsuspend(&set));
6058 }
6059 break;
6060 case TARGET_NR_rt_sigtimedwait:
6061 {
6062 sigset_t set;
6063 struct timespec uts, *puts;
6064 siginfo_t uinfo;
6065
6066 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
6067 goto efault;
6068 target_to_host_sigset(&set, p);
6069 unlock_user(p, arg1, 0);
6070 if (arg3) {
6071 puts = &uts;
6072 target_to_host_timespec(puts, arg3);
6073 } else {
6074 puts = NULL;
6075 }
6076 ret = get_errno(sigtimedwait(&set, &uinfo, puts));
6077 if (!is_error(ret) && arg2) {
6078 if (!(p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t), 0)))
6079 goto efault;
6080 host_to_target_siginfo(p, &uinfo);
6081 unlock_user(p, arg2, sizeof(target_siginfo_t));
6082 }
6083 }
6084 break;
6085 case TARGET_NR_rt_sigqueueinfo:
6086 {
6087 siginfo_t uinfo;
6088 if (!(p = lock_user(VERIFY_READ, arg3, sizeof(target_sigset_t), 1)))
6089 goto efault;
6090 target_to_host_siginfo(&uinfo, p);
6091 unlock_user(p, arg1, 0);
6092 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
6093 }
6094 break;
6095 #ifdef TARGET_NR_sigreturn
6096 case TARGET_NR_sigreturn:
6097 /* NOTE: ret is eax, so not transcoding must be done */
6098 ret = do_sigreturn(cpu_env);
6099 break;
6100 #endif
6101 case TARGET_NR_rt_sigreturn:
6102 /* NOTE: ret is eax, so not transcoding must be done */
6103 ret = do_rt_sigreturn(cpu_env);
6104 break;
6105 case TARGET_NR_sethostname:
6106 if (!(p = lock_user_string(arg1)))
6107 goto efault;
6108 ret = get_errno(sethostname(p, arg2));
6109 unlock_user(p, arg1, 0);
6110 break;
6111 case TARGET_NR_setrlimit:
6112 {
6113 int resource = target_to_host_resource(arg1);
6114 struct target_rlimit *target_rlim;
6115 struct rlimit rlim;
6116 if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1))
6117 goto efault;
6118 rlim.rlim_cur = target_to_host_rlim(target_rlim->rlim_cur);
6119 rlim.rlim_max = target_to_host_rlim(target_rlim->rlim_max);
6120 unlock_user_struct(target_rlim, arg2, 0);
6121 ret = get_errno(setrlimit(resource, &rlim));
6122 }
6123 break;
6124 case TARGET_NR_getrlimit:
6125 {
6126 int resource = target_to_host_resource(arg1);
6127 struct target_rlimit *target_rlim;
6128 struct rlimit rlim;
6129
6130 ret = get_errno(getrlimit(resource, &rlim));
6131 if (!is_error(ret)) {
6132 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
6133 goto efault;
6134 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
6135 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
6136 unlock_user_struct(target_rlim, arg2, 1);
6137 }
6138 }
6139 break;
6140 case TARGET_NR_getrusage:
6141 {
6142 struct rusage rusage;
6143 ret = get_errno(getrusage(arg1, &rusage));
6144 if (!is_error(ret)) {
6145 host_to_target_rusage(arg2, &rusage);
6146 }
6147 }
6148 break;
6149 case TARGET_NR_gettimeofday:
6150 {
6151 struct timeval tv;
6152 ret = get_errno(gettimeofday(&tv, NULL));
6153 if (!is_error(ret)) {
6154 if (copy_to_user_timeval(arg1, &tv))
6155 goto efault;
6156 }
6157 }
6158 break;
6159 case TARGET_NR_settimeofday:
6160 {
6161 struct timeval tv;
6162 if (copy_from_user_timeval(&tv, arg1))
6163 goto efault;
6164 ret = get_errno(settimeofday(&tv, NULL));
6165 }
6166 break;
6167 #if defined(TARGET_NR_select)
6168 case TARGET_NR_select:
6169 #if defined(TARGET_S390X) || defined(TARGET_ALPHA)
6170 ret = do_select(arg1, arg2, arg3, arg4, arg5);
6171 #else
6172 {
6173 struct target_sel_arg_struct *sel;
6174 abi_ulong inp, outp, exp, tvp;
6175 long nsel;
6176
6177 if (!lock_user_struct(VERIFY_READ, sel, arg1, 1))
6178 goto efault;
6179 nsel = tswapal(sel->n);
6180 inp = tswapal(sel->inp);
6181 outp = tswapal(sel->outp);
6182 exp = tswapal(sel->exp);
6183 tvp = tswapal(sel->tvp);
6184 unlock_user_struct(sel, arg1, 0);
6185 ret = do_select(nsel, inp, outp, exp, tvp);
6186 }
6187 #endif
6188 break;
6189 #endif
6190 #ifdef TARGET_NR_pselect6
6191 case TARGET_NR_pselect6:
6192 {
6193 abi_long rfd_addr, wfd_addr, efd_addr, n, ts_addr;
6194 fd_set rfds, wfds, efds;
6195 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
6196 struct timespec ts, *ts_ptr;
6197
6198 /*
6199 * The 6th arg is actually two args smashed together,
6200 * so we cannot use the C library.
6201 */
6202 sigset_t set;
6203 struct {
6204 sigset_t *set;
6205 size_t size;
6206 } sig, *sig_ptr;
6207
6208 abi_ulong arg_sigset, arg_sigsize, *arg7;
6209 target_sigset_t *target_sigset;
6210
6211 n = arg1;
6212 rfd_addr = arg2;
6213 wfd_addr = arg3;
6214 efd_addr = arg4;
6215 ts_addr = arg5;
6216
6217 ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n);
6218 if (ret) {
6219 goto fail;
6220 }
6221 ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n);
6222 if (ret) {
6223 goto fail;
6224 }
6225 ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n);
6226 if (ret) {
6227 goto fail;
6228 }
6229
6230 /*
6231 * This takes a timespec, and not a timeval, so we cannot
6232 * use the do_select() helper ...
6233 */
6234 if (ts_addr) {
6235 if (target_to_host_timespec(&ts, ts_addr)) {
6236 goto efault;
6237 }
6238 ts_ptr = &ts;
6239 } else {
6240 ts_ptr = NULL;
6241 }
6242
6243 /* Extract the two packed args for the sigset */
6244 if (arg6) {
6245 sig_ptr = &sig;
6246 sig.size = _NSIG / 8;
6247
6248 arg7 = lock_user(VERIFY_READ, arg6, sizeof(*arg7) * 2, 1);
6249 if (!arg7) {
6250 goto efault;
6251 }
6252 arg_sigset = tswapal(arg7[0]);
6253 arg_sigsize = tswapal(arg7[1]);
6254 unlock_user(arg7, arg6, 0);
6255
6256 if (arg_sigset) {
6257 sig.set = &set;
6258 if (arg_sigsize != sizeof(*target_sigset)) {
6259 /* Like the kernel, we enforce correct size sigsets */
6260 ret = -TARGET_EINVAL;
6261 goto fail;
6262 }
6263 target_sigset = lock_user(VERIFY_READ, arg_sigset,
6264 sizeof(*target_sigset), 1);
6265 if (!target_sigset) {
6266 goto efault;
6267 }
6268 target_to_host_sigset(&set, target_sigset);
6269 unlock_user(target_sigset, arg_sigset, 0);
6270 } else {
6271 sig.set = NULL;
6272 }
6273 } else {
6274 sig_ptr = NULL;
6275 }
6276
6277 ret = get_errno(sys_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr,
6278 ts_ptr, sig_ptr));
6279
6280 if (!is_error(ret)) {
6281 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
6282 goto efault;
6283 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
6284 goto efault;
6285 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
6286 goto efault;
6287
6288 if (ts_addr && host_to_target_timespec(ts_addr, &ts))
6289 goto efault;
6290 }
6291 }
6292 break;
6293 #endif
6294 case TARGET_NR_symlink:
6295 {
6296 void *p2;
6297 p = lock_user_string(arg1);
6298 p2 = lock_user_string(arg2);
6299 if (!p || !p2)
6300 ret = -TARGET_EFAULT;
6301 else
6302 ret = get_errno(symlink(p, p2));
6303 unlock_user(p2, arg2, 0);
6304 unlock_user(p, arg1, 0);
6305 }
6306 break;
6307 #if defined(TARGET_NR_symlinkat)
6308 case TARGET_NR_symlinkat:
6309 {
6310 void *p2;
6311 p = lock_user_string(arg1);
6312 p2 = lock_user_string(arg3);
6313 if (!p || !p2)
6314 ret = -TARGET_EFAULT;
6315 else
6316 ret = get_errno(symlinkat(p, arg2, p2));
6317 unlock_user(p2, arg3, 0);
6318 unlock_user(p, arg1, 0);
6319 }
6320 break;
6321 #endif
6322 #ifdef TARGET_NR_oldlstat
6323 case TARGET_NR_oldlstat:
6324 goto unimplemented;
6325 #endif
6326 case TARGET_NR_readlink:
6327 {
6328 void *p2;
6329 p = lock_user_string(arg1);
6330 p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0);
6331 if (!p || !p2) {
6332 ret = -TARGET_EFAULT;
6333 } else if (is_proc_myself((const char *)p, "exe")) {
6334 char real[PATH_MAX], *temp;
6335 temp = realpath(exec_path, real);
6336 ret = temp == NULL ? get_errno(-1) : strlen(real) ;
6337 snprintf((char *)p2, arg3, "%s", real);
6338 } else {
6339 ret = get_errno(readlink(path(p), p2, arg3));
6340 }
6341 unlock_user(p2, arg2, ret);
6342 unlock_user(p, arg1, 0);
6343 }
6344 break;
6345 #if defined(TARGET_NR_readlinkat)
6346 case TARGET_NR_readlinkat:
6347 {
6348 void *p2;
6349 p = lock_user_string(arg2);
6350 p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0);
6351 if (!p || !p2) {
6352 ret = -TARGET_EFAULT;
6353 } else if (is_proc_myself((const char *)p, "exe")) {
6354 char real[PATH_MAX], *temp;
6355 temp = realpath(exec_path, real);
6356 ret = temp == NULL ? get_errno(-1) : strlen(real) ;
6357 snprintf((char *)p2, arg4, "%s", real);
6358 } else {
6359 ret = get_errno(readlinkat(arg1, path(p), p2, arg4));
6360 }
6361 unlock_user(p2, arg3, ret);
6362 unlock_user(p, arg2, 0);
6363 }
6364 break;
6365 #endif
6366 #ifdef TARGET_NR_uselib
6367 case TARGET_NR_uselib:
6368 goto unimplemented;
6369 #endif
6370 #ifdef TARGET_NR_swapon
6371 case TARGET_NR_swapon:
6372 if (!(p = lock_user_string(arg1)))
6373 goto efault;
6374 ret = get_errno(swapon(p, arg2));
6375 unlock_user(p, arg1, 0);
6376 break;
6377 #endif
6378 case TARGET_NR_reboot:
6379 if (arg3 == LINUX_REBOOT_CMD_RESTART2) {
6380 /* arg4 must be ignored in all other cases */
6381 p = lock_user_string(arg4);
6382 if (!p) {
6383 goto efault;
6384 }
6385 ret = get_errno(reboot(arg1, arg2, arg3, p));
6386 unlock_user(p, arg4, 0);
6387 } else {
6388 ret = get_errno(reboot(arg1, arg2, arg3, NULL));
6389 }
6390 break;
6391 #ifdef TARGET_NR_readdir
6392 case TARGET_NR_readdir:
6393 goto unimplemented;
6394 #endif
6395 #ifdef TARGET_NR_mmap
6396 case TARGET_NR_mmap:
6397 #if (defined(TARGET_I386) && defined(TARGET_ABI32)) || defined(TARGET_ARM) || \
6398 defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE) \
6399 || defined(TARGET_S390X)
6400 {
6401 abi_ulong *v;
6402 abi_ulong v1, v2, v3, v4, v5, v6;
6403 if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1)))
6404 goto efault;
6405 v1 = tswapal(v[0]);
6406 v2 = tswapal(v[1]);
6407 v3 = tswapal(v[2]);
6408 v4 = tswapal(v[3]);
6409 v5 = tswapal(v[4]);
6410 v6 = tswapal(v[5]);
6411 unlock_user(v, arg1, 0);
6412 ret = get_errno(target_mmap(v1, v2, v3,
6413 target_to_host_bitmask(v4, mmap_flags_tbl),
6414 v5, v6));
6415 }
6416 #else
6417 ret = get_errno(target_mmap(arg1, arg2, arg3,
6418 target_to_host_bitmask(arg4, mmap_flags_tbl),
6419 arg5,
6420 arg6));
6421 #endif
6422 break;
6423 #endif
6424 #ifdef TARGET_NR_mmap2
6425 case TARGET_NR_mmap2:
6426 #ifndef MMAP_SHIFT
6427 #define MMAP_SHIFT 12
6428 #endif
6429 ret = get_errno(target_mmap(arg1, arg2, arg3,
6430 target_to_host_bitmask(arg4, mmap_flags_tbl),
6431 arg5,
6432 arg6 << MMAP_SHIFT));
6433 break;
6434 #endif
6435 case TARGET_NR_munmap:
6436 ret = get_errno(target_munmap(arg1, arg2));
6437 break;
6438 case TARGET_NR_mprotect:
6439 {
6440 TaskState *ts = ((CPUArchState *)cpu_env)->opaque;
6441 /* Special hack to detect libc making the stack executable. */
6442 if ((arg3 & PROT_GROWSDOWN)
6443 && arg1 >= ts->info->stack_limit
6444 && arg1 <= ts->info->start_stack) {
6445 arg3 &= ~PROT_GROWSDOWN;
6446 arg2 = arg2 + arg1 - ts->info->stack_limit;
6447 arg1 = ts->info->stack_limit;
6448 }
6449 }
6450 ret = get_errno(target_mprotect(arg1, arg2, arg3));
6451 break;
6452 #ifdef TARGET_NR_mremap
6453 case TARGET_NR_mremap:
6454 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
6455 break;
6456 #endif
6457 /* ??? msync/mlock/munlock are broken for softmmu. */
6458 #ifdef TARGET_NR_msync
6459 case TARGET_NR_msync:
6460 ret = get_errno(msync(g2h(arg1), arg2, arg3));
6461 break;
6462 #endif
6463 #ifdef TARGET_NR_mlock
6464 case TARGET_NR_mlock:
6465 ret = get_errno(mlock(g2h(arg1), arg2));
6466 break;
6467 #endif
6468 #ifdef TARGET_NR_munlock
6469 case TARGET_NR_munlock:
6470 ret = get_errno(munlock(g2h(arg1), arg2));
6471 break;
6472 #endif
6473 #ifdef TARGET_NR_mlockall
6474 case TARGET_NR_mlockall:
6475 ret = get_errno(mlockall(arg1));
6476 break;
6477 #endif
6478 #ifdef TARGET_NR_munlockall
6479 case TARGET_NR_munlockall:
6480 ret = get_errno(munlockall());
6481 break;
6482 #endif
6483 case TARGET_NR_truncate:
6484 if (!(p = lock_user_string(arg1)))
6485 goto efault;
6486 ret = get_errno(truncate(p, arg2));
6487 unlock_user(p, arg1, 0);
6488 break;
6489 case TARGET_NR_ftruncate:
6490 ret = get_errno(ftruncate(arg1, arg2));
6491 break;
6492 case TARGET_NR_fchmod:
6493 ret = get_errno(fchmod(arg1, arg2));
6494 break;
6495 #if defined(TARGET_NR_fchmodat)
6496 case TARGET_NR_fchmodat:
6497 if (!(p = lock_user_string(arg2)))
6498 goto efault;
6499 ret = get_errno(fchmodat(arg1, p, arg3, 0));
6500 unlock_user(p, arg2, 0);
6501 break;
6502 #endif
6503 case TARGET_NR_getpriority:
6504 /* Note that negative values are valid for getpriority, so we must
6505 differentiate based on errno settings. */
6506 errno = 0;
6507 ret = getpriority(arg1, arg2);
6508 if (ret == -1 && errno != 0) {
6509 ret = -host_to_target_errno(errno);
6510 break;
6511 }
6512 #ifdef TARGET_ALPHA
6513 /* Return value is the unbiased priority. Signal no error. */
6514 ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0;
6515 #else
6516 /* Return value is a biased priority to avoid negative numbers. */
6517 ret = 20 - ret;
6518 #endif
6519 break;
6520 case TARGET_NR_setpriority:
6521 ret = get_errno(setpriority(arg1, arg2, arg3));
6522 break;
6523 #ifdef TARGET_NR_profil
6524 case TARGET_NR_profil:
6525 goto unimplemented;
6526 #endif
6527 case TARGET_NR_statfs:
6528 if (!(p = lock_user_string(arg1)))
6529 goto efault;
6530 ret = get_errno(statfs(path(p), &stfs));
6531 unlock_user(p, arg1, 0);
6532 convert_statfs:
6533 if (!is_error(ret)) {
6534 struct target_statfs *target_stfs;
6535
6536 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0))
6537 goto efault;
6538 __put_user(stfs.f_type, &target_stfs->f_type);
6539 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
6540 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
6541 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
6542 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
6543 __put_user(stfs.f_files, &target_stfs->f_files);
6544 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
6545 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
6546 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
6547 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
6548 __put_user(stfs.f_frsize, &target_stfs->f_frsize);
6549 memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare));
6550 unlock_user_struct(target_stfs, arg2, 1);
6551 }
6552 break;
6553 case TARGET_NR_fstatfs:
6554 ret = get_errno(fstatfs(arg1, &stfs));
6555 goto convert_statfs;
6556 #ifdef TARGET_NR_statfs64
6557 case TARGET_NR_statfs64:
6558 if (!(p = lock_user_string(arg1)))
6559 goto efault;
6560 ret = get_errno(statfs(path(p), &stfs));
6561 unlock_user(p, arg1, 0);
6562 convert_statfs64:
6563 if (!is_error(ret)) {
6564 struct target_statfs64 *target_stfs;
6565
6566 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0))
6567 goto efault;
6568 __put_user(stfs.f_type, &target_stfs->f_type);
6569 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
6570 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
6571 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
6572 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
6573 __put_user(stfs.f_files, &target_stfs->f_files);
6574 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
6575 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
6576 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
6577 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
6578 __put_user(stfs.f_frsize, &target_stfs->f_frsize);
6579 memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare));
6580 unlock_user_struct(target_stfs, arg3, 1);
6581 }
6582 break;
6583 case TARGET_NR_fstatfs64:
6584 ret = get_errno(fstatfs(arg1, &stfs));
6585 goto convert_statfs64;
6586 #endif
6587 #ifdef TARGET_NR_ioperm
6588 case TARGET_NR_ioperm:
6589 goto unimplemented;
6590 #endif
6591 #ifdef TARGET_NR_socketcall
6592 case TARGET_NR_socketcall:
6593 ret = do_socketcall(arg1, arg2);
6594 break;
6595 #endif
6596 #ifdef TARGET_NR_accept
6597 case TARGET_NR_accept:
6598 ret = do_accept4(arg1, arg2, arg3, 0);
6599 break;
6600 #endif
6601 #ifdef TARGET_NR_accept4
6602 case TARGET_NR_accept4:
6603 #ifdef CONFIG_ACCEPT4
6604 ret = do_accept4(arg1, arg2, arg3, arg4);
6605 #else
6606 goto unimplemented;
6607 #endif
6608 break;
6609 #endif
6610 #ifdef TARGET_NR_bind
6611 case TARGET_NR_bind:
6612 ret = do_bind(arg1, arg2, arg3);
6613 break;
6614 #endif
6615 #ifdef TARGET_NR_connect
6616 case TARGET_NR_connect:
6617 ret = do_connect(arg1, arg2, arg3);
6618 break;
6619 #endif
6620 #ifdef TARGET_NR_getpeername
6621 case TARGET_NR_getpeername:
6622 ret = do_getpeername(arg1, arg2, arg3);
6623 break;
6624 #endif
6625 #ifdef TARGET_NR_getsockname
6626 case TARGET_NR_getsockname:
6627 ret = do_getsockname(arg1, arg2, arg3);
6628 break;
6629 #endif
6630 #ifdef TARGET_NR_getsockopt
6631 case TARGET_NR_getsockopt:
6632 ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5);
6633 break;
6634 #endif
6635 #ifdef TARGET_NR_listen
6636 case TARGET_NR_listen:
6637 ret = get_errno(listen(arg1, arg2));
6638 break;
6639 #endif
6640 #ifdef TARGET_NR_recv
6641 case TARGET_NR_recv:
6642 ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0);
6643 break;
6644 #endif
6645 #ifdef TARGET_NR_recvfrom
6646 case TARGET_NR_recvfrom:
6647 ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6);
6648 break;
6649 #endif
6650 #ifdef TARGET_NR_recvmsg
6651 case TARGET_NR_recvmsg:
6652 ret = do_sendrecvmsg(arg1, arg2, arg3, 0);
6653 break;
6654 #endif
6655 #ifdef TARGET_NR_send
6656 case TARGET_NR_send:
6657 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0);
6658 break;
6659 #endif
6660 #ifdef TARGET_NR_sendmsg
6661 case TARGET_NR_sendmsg:
6662 ret = do_sendrecvmsg(arg1, arg2, arg3, 1);
6663 break;
6664 #endif
6665 #ifdef TARGET_NR_sendto
6666 case TARGET_NR_sendto:
6667 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
6668 break;
6669 #endif
6670 #ifdef TARGET_NR_shutdown
6671 case TARGET_NR_shutdown:
6672 ret = get_errno(shutdown(arg1, arg2));
6673 break;
6674 #endif
6675 #ifdef TARGET_NR_socket
6676 case TARGET_NR_socket:
6677 ret = do_socket(arg1, arg2, arg3);
6678 break;
6679 #endif
6680 #ifdef TARGET_NR_socketpair
6681 case TARGET_NR_socketpair:
6682 ret = do_socketpair(arg1, arg2, arg3, arg4);
6683 break;
6684 #endif
6685 #ifdef TARGET_NR_setsockopt
6686 case TARGET_NR_setsockopt:
6687 ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
6688 break;
6689 #endif
6690
6691 case TARGET_NR_syslog:
6692 if (!(p = lock_user_string(arg2)))
6693 goto efault;
6694 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));
6695 unlock_user(p, arg2, 0);
6696 break;
6697
6698 case TARGET_NR_setitimer:
6699 {
6700 struct itimerval value, ovalue, *pvalue;
6701
6702 if (arg2) {
6703 pvalue = &value;
6704 if (copy_from_user_timeval(&pvalue->it_interval, arg2)
6705 || copy_from_user_timeval(&pvalue->it_value,
6706 arg2 + sizeof(struct target_timeval)))
6707 goto efault;
6708 } else {
6709 pvalue = NULL;
6710 }
6711 ret = get_errno(setitimer(arg1, pvalue, &ovalue));
6712 if (!is_error(ret) && arg3) {
6713 if (copy_to_user_timeval(arg3,
6714 &ovalue.it_interval)
6715 || copy_to_user_timeval(arg3 + sizeof(struct target_timeval),
6716 &ovalue.it_value))
6717 goto efault;
6718 }
6719 }
6720 break;
6721 case TARGET_NR_getitimer:
6722 {
6723 struct itimerval value;
6724
6725 ret = get_errno(getitimer(arg1, &value));
6726 if (!is_error(ret) && arg2) {
6727 if (copy_to_user_timeval(arg2,
6728 &value.it_interval)
6729 || copy_to_user_timeval(arg2 + sizeof(struct target_timeval),
6730 &value.it_value))
6731 goto efault;
6732 }
6733 }
6734 break;
6735 case TARGET_NR_stat:
6736 if (!(p = lock_user_string(arg1)))
6737 goto efault;
6738 ret = get_errno(stat(path(p), &st));
6739 unlock_user(p, arg1, 0);
6740 goto do_stat;
6741 case TARGET_NR_lstat:
6742 if (!(p = lock_user_string(arg1)))
6743 goto efault;
6744 ret = get_errno(lstat(path(p), &st));
6745 unlock_user(p, arg1, 0);
6746 goto do_stat;
6747 case TARGET_NR_fstat:
6748 {
6749 ret = get_errno(fstat(arg1, &st));
6750 do_stat:
6751 if (!is_error(ret)) {
6752 struct target_stat *target_st;
6753
6754 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0))
6755 goto efault;
6756 memset(target_st, 0, sizeof(*target_st));
6757 __put_user(st.st_dev, &target_st->st_dev);
6758 __put_user(st.st_ino, &target_st->st_ino);
6759 __put_user(st.st_mode, &target_st->st_mode);
6760 __put_user(st.st_uid, &target_st->st_uid);
6761 __put_user(st.st_gid, &target_st->st_gid);
6762 __put_user(st.st_nlink, &target_st->st_nlink);
6763 __put_user(st.st_rdev, &target_st->st_rdev);
6764 __put_user(st.st_size, &target_st->st_size);
6765 __put_user(st.st_blksize, &target_st->st_blksize);
6766 __put_user(st.st_blocks, &target_st->st_blocks);
6767 __put_user(st.st_atime, &target_st->target_st_atime);
6768 __put_user(st.st_mtime, &target_st->target_st_mtime);
6769 __put_user(st.st_ctime, &target_st->target_st_ctime);
6770 unlock_user_struct(target_st, arg2, 1);
6771 }
6772 }
6773 break;
6774 #ifdef TARGET_NR_olduname
6775 case TARGET_NR_olduname:
6776 goto unimplemented;
6777 #endif
6778 #ifdef TARGET_NR_iopl
6779 case TARGET_NR_iopl:
6780 goto unimplemented;
6781 #endif
6782 case TARGET_NR_vhangup:
6783 ret = get_errno(vhangup());
6784 break;
6785 #ifdef TARGET_NR_idle
6786 case TARGET_NR_idle:
6787 goto unimplemented;
6788 #endif
6789 #ifdef TARGET_NR_syscall
6790 case TARGET_NR_syscall:
6791 ret = do_syscall(cpu_env, arg1 & 0xffff, arg2, arg3, arg4, arg5,
6792 arg6, arg7, arg8, 0);
6793 break;
6794 #endif
6795 case TARGET_NR_wait4:
6796 {
6797 int status;
6798 abi_long status_ptr = arg2;
6799 struct rusage rusage, *rusage_ptr;
6800 abi_ulong target_rusage = arg4;
6801 if (target_rusage)
6802 rusage_ptr = &rusage;
6803 else
6804 rusage_ptr = NULL;
6805 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
6806 if (!is_error(ret)) {
6807 if (status_ptr && ret) {
6808 status = host_to_target_waitstatus(status);
6809 if (put_user_s32(status, status_ptr))
6810 goto efault;
6811 }
6812 if (target_rusage)
6813 host_to_target_rusage(target_rusage, &rusage);
6814 }
6815 }
6816 break;
6817 #ifdef TARGET_NR_swapoff
6818 case TARGET_NR_swapoff:
6819 if (!(p = lock_user_string(arg1)))
6820 goto efault;
6821 ret = get_errno(swapoff(p));
6822 unlock_user(p, arg1, 0);
6823 break;
6824 #endif
6825 case TARGET_NR_sysinfo:
6826 {
6827 struct target_sysinfo *target_value;
6828 struct sysinfo value;
6829 ret = get_errno(sysinfo(&value));
6830 if (!is_error(ret) && arg1)
6831 {
6832 if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0))
6833 goto efault;
6834 __put_user(value.uptime, &target_value->uptime);
6835 __put_user(value.loads[0], &target_value->loads[0]);
6836 __put_user(value.loads[1], &target_value->loads[1]);
6837 __put_user(value.loads[2], &target_value->loads[2]);
6838 __put_user(value.totalram, &target_value->totalram);
6839 __put_user(value.freeram, &target_value->freeram);
6840 __put_user(value.sharedram, &target_value->sharedram);
6841 __put_user(value.bufferram, &target_value->bufferram);
6842 __put_user(value.totalswap, &target_value->totalswap);
6843 __put_user(value.freeswap, &target_value->freeswap);
6844 __put_user(value.procs, &target_value->procs);
6845 __put_user(value.totalhigh, &target_value->totalhigh);
6846 __put_user(value.freehigh, &target_value->freehigh);
6847 __put_user(value.mem_unit, &target_value->mem_unit);
6848 unlock_user_struct(target_value, arg1, 1);
6849 }
6850 }
6851 break;
6852 #ifdef TARGET_NR_ipc
6853 case TARGET_NR_ipc:
6854 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
6855 break;
6856 #endif
6857 #ifdef TARGET_NR_semget
6858 case TARGET_NR_semget:
6859 ret = get_errno(semget(arg1, arg2, arg3));
6860 break;
6861 #endif
6862 #ifdef TARGET_NR_semop
6863 case TARGET_NR_semop:
6864 ret = do_semop(arg1, arg2, arg3);
6865 break;
6866 #endif
6867 #ifdef TARGET_NR_semctl
6868 case TARGET_NR_semctl:
6869 ret = do_semctl(arg1, arg2, arg3, (union target_semun)(abi_ulong)arg4);
6870 break;
6871 #endif
6872 #ifdef TARGET_NR_msgctl
6873 case TARGET_NR_msgctl:
6874 ret = do_msgctl(arg1, arg2, arg3);
6875 break;
6876 #endif
6877 #ifdef TARGET_NR_msgget
6878 case TARGET_NR_msgget:
6879 ret = get_errno(msgget(arg1, arg2));
6880 break;
6881 #endif
6882 #ifdef TARGET_NR_msgrcv
6883 case TARGET_NR_msgrcv:
6884 ret = do_msgrcv(arg1, arg2, arg3, arg4, arg5);
6885 break;
6886 #endif
6887 #ifdef TARGET_NR_msgsnd
6888 case TARGET_NR_msgsnd:
6889 ret = do_msgsnd(arg1, arg2, arg3, arg4);
6890 break;
6891 #endif
6892 #ifdef TARGET_NR_shmget
6893 case TARGET_NR_shmget:
6894 ret = get_errno(shmget(arg1, arg2, arg3));
6895 break;
6896 #endif
6897 #ifdef TARGET_NR_shmctl
6898 case TARGET_NR_shmctl:
6899 ret = do_shmctl(arg1, arg2, arg3);
6900 break;
6901 #endif
6902 #ifdef TARGET_NR_shmat
6903 case TARGET_NR_shmat:
6904 ret = do_shmat(arg1, arg2, arg3);
6905 break;
6906 #endif
6907 #ifdef TARGET_NR_shmdt
6908 case TARGET_NR_shmdt:
6909 ret = do_shmdt(arg1);
6910 break;
6911 #endif
6912 case TARGET_NR_fsync:
6913 ret = get_errno(fsync(arg1));
6914 break;
6915 case TARGET_NR_clone:
6916 /* Linux manages to have three different orderings for its
6917 * arguments to clone(); the BACKWARDS and BACKWARDS2 defines
6918 * match the kernel's CONFIG_CLONE_* settings.
6919 * Microblaze is further special in that it uses a sixth
6920 * implicit argument to clone for the TLS pointer.
6921 */
6922 #if defined(TARGET_MICROBLAZE)
6923 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg4, arg6, arg5));
6924 #elif defined(TARGET_CLONE_BACKWARDS)
6925 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg4, arg5));
6926 #elif defined(TARGET_CLONE_BACKWARDS2)
6927 ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg5, arg4));
6928 #else
6929 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg5, arg4));
6930 #endif
6931 break;
6932 #ifdef __NR_exit_group
6933 /* new thread calls */
6934 case TARGET_NR_exit_group:
6935 #ifdef TARGET_GPROF
6936 _mcleanup();
6937 #endif
6938 gdb_exit(cpu_env, arg1);
6939 ret = get_errno(exit_group(arg1));
6940 break;
6941 #endif
6942 case TARGET_NR_setdomainname:
6943 if (!(p = lock_user_string(arg1)))
6944 goto efault;
6945 ret = get_errno(setdomainname(p, arg2));
6946 unlock_user(p, arg1, 0);
6947 break;
6948 case TARGET_NR_uname:
6949 /* no need to transcode because we use the linux syscall */
6950 {
6951 struct new_utsname * buf;
6952
6953 if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0))
6954 goto efault;
6955 ret = get_errno(sys_uname(buf));
6956 if (!is_error(ret)) {
6957 /* Overrite the native machine name with whatever is being
6958 emulated. */
6959 strcpy (buf->machine, cpu_to_uname_machine(cpu_env));
6960 /* Allow the user to override the reported release. */
6961 if (qemu_uname_release && *qemu_uname_release)
6962 strcpy (buf->release, qemu_uname_release);
6963 }
6964 unlock_user_struct(buf, arg1, 1);
6965 }
6966 break;
6967 #ifdef TARGET_I386
6968 case TARGET_NR_modify_ldt:
6969 ret = do_modify_ldt(cpu_env, arg1, arg2, arg3);
6970 break;
6971 #if !defined(TARGET_X86_64)
6972 case TARGET_NR_vm86old:
6973 goto unimplemented;
6974 case TARGET_NR_vm86:
6975 ret = do_vm86(cpu_env, arg1, arg2);
6976 break;
6977 #endif
6978 #endif
6979 case TARGET_NR_adjtimex:
6980 goto unimplemented;
6981 #ifdef TARGET_NR_create_module
6982 case TARGET_NR_create_module:
6983 #endif
6984 case TARGET_NR_init_module:
6985 case TARGET_NR_delete_module:
6986 #ifdef TARGET_NR_get_kernel_syms
6987 case TARGET_NR_get_kernel_syms:
6988 #endif
6989 goto unimplemented;
6990 case TARGET_NR_quotactl:
6991 goto unimplemented;
6992 case TARGET_NR_getpgid:
6993 ret = get_errno(getpgid(arg1));
6994 break;
6995 case TARGET_NR_fchdir:
6996 ret = get_errno(fchdir(arg1));
6997 break;
6998 #ifdef TARGET_NR_bdflush /* not on x86_64 */
6999 case TARGET_NR_bdflush:
7000 goto unimplemented;
7001 #endif
7002 #ifdef TARGET_NR_sysfs
7003 case TARGET_NR_sysfs:
7004 goto unimplemented;
7005 #endif
7006 case TARGET_NR_personality:
7007 ret = get_errno(personality(arg1));
7008 break;
7009 #ifdef TARGET_NR_afs_syscall
7010 case TARGET_NR_afs_syscall:
7011 goto unimplemented;
7012 #endif
7013 #ifdef TARGET_NR__llseek /* Not on alpha */
7014 case TARGET_NR__llseek:
7015 {
7016 int64_t res;
7017 #if !defined(__NR_llseek)
7018 res = lseek(arg1, ((uint64_t)arg2 << 32) | arg3, arg5);
7019 if (res == -1) {
7020 ret = get_errno(res);
7021 } else {
7022 ret = 0;
7023 }
7024 #else
7025 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
7026 #endif
7027 if ((ret == 0) && put_user_s64(res, arg4)) {
7028 goto efault;
7029 }
7030 }
7031 break;
7032 #endif
7033 case TARGET_NR_getdents:
7034 #ifdef __NR_getdents
7035 #if TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64
7036 {
7037 struct target_dirent *target_dirp;
7038 struct linux_dirent *dirp;
7039 abi_long count = arg3;
7040
7041 dirp = malloc(count);
7042 if (!dirp) {
7043 ret = -TARGET_ENOMEM;
7044 goto fail;
7045 }
7046
7047 ret = get_errno(sys_getdents(arg1, dirp, count));
7048 if (!is_error(ret)) {
7049 struct linux_dirent *de;
7050 struct target_dirent *tde;
7051 int len = ret;
7052 int reclen, treclen;
7053 int count1, tnamelen;
7054
7055 count1 = 0;
7056 de = dirp;
7057 if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
7058 goto efault;
7059 tde = target_dirp;
7060 while (len > 0) {
7061 reclen = de->d_reclen;
7062 tnamelen = reclen - offsetof(struct linux_dirent, d_name);
7063 assert(tnamelen >= 0);
7064 treclen = tnamelen + offsetof(struct target_dirent, d_name);
7065 assert(count1 + treclen <= count);
7066 tde->d_reclen = tswap16(treclen);
7067 tde->d_ino = tswapal(de->d_ino);
7068 tde->d_off = tswapal(de->d_off);
7069 memcpy(tde->d_name, de->d_name, tnamelen);
7070 de = (struct linux_dirent *)((char *)de + reclen);
7071 len -= reclen;
7072 tde = (struct target_dirent *)((char *)tde + treclen);
7073 count1 += treclen;
7074 }
7075 ret = count1;
7076 unlock_user(target_dirp, arg2, ret);
7077 }
7078 free(dirp);
7079 }
7080 #else
7081 {
7082 struct linux_dirent *dirp;
7083 abi_long count = arg3;
7084
7085 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
7086 goto efault;
7087 ret = get_errno(sys_getdents(arg1, dirp, count));
7088 if (!is_error(ret)) {
7089 struct linux_dirent *de;
7090 int len = ret;
7091 int reclen;
7092 de = dirp;
7093 while (len > 0) {
7094 reclen = de->d_reclen;
7095 if (reclen > len)
7096 break;
7097 de->d_reclen = tswap16(reclen);
7098 tswapls(&de->d_ino);
7099 tswapls(&de->d_off);
7100 de = (struct linux_dirent *)((char *)de + reclen);
7101 len -= reclen;
7102 }
7103 }
7104 unlock_user(dirp, arg2, ret);
7105 }
7106 #endif
7107 #else
7108 /* Implement getdents in terms of getdents64 */
7109 {
7110 struct linux_dirent64 *dirp;
7111 abi_long count = arg3;
7112
7113 dirp = lock_user(VERIFY_WRITE, arg2, count, 0);
7114 if (!dirp) {
7115 goto efault;
7116 }
7117 ret = get_errno(sys_getdents64(arg1, dirp, count));
7118 if (!is_error(ret)) {
7119 /* Convert the dirent64 structs to target dirent. We do this
7120 * in-place, since we can guarantee that a target_dirent is no
7121 * larger than a dirent64; however this means we have to be
7122 * careful to read everything before writing in the new format.
7123 */
7124 struct linux_dirent64 *de;
7125 struct target_dirent *tde;
7126 int len = ret;
7127 int tlen = 0;
7128
7129 de = dirp;
7130 tde = (struct target_dirent *)dirp;
7131 while (len > 0) {
7132 int namelen, treclen;
7133 int reclen = de->d_reclen;
7134 uint64_t ino = de->d_ino;
7135 int64_t off = de->d_off;
7136 uint8_t type = de->d_type;
7137
7138 namelen = strlen(de->d_name);
7139 treclen = offsetof(struct target_dirent, d_name)
7140 + namelen + 2;
7141 treclen = QEMU_ALIGN_UP(treclen, sizeof(abi_long));
7142
7143 memmove(tde->d_name, de->d_name, namelen + 1);
7144 tde->d_ino = tswapal(ino);
7145 tde->d_off = tswapal(off);
7146 tde->d_reclen = tswap16(treclen);
7147 /* The target_dirent type is in what was formerly a padding
7148 * byte at the end of the structure:
7149 */
7150 *(((char *)tde) + treclen - 1) = type;
7151
7152 de = (struct linux_dirent64 *)((char *)de + reclen);
7153 tde = (struct target_dirent *)((char *)tde + treclen);
7154 len -= reclen;
7155 tlen += treclen;
7156 }
7157 ret = tlen;
7158 }
7159 unlock_user(dirp, arg2, ret);
7160 }
7161 #endif
7162 break;
7163 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
7164 case TARGET_NR_getdents64:
7165 {
7166 struct linux_dirent64 *dirp;
7167 abi_long count = arg3;
7168 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
7169 goto efault;
7170 ret = get_errno(sys_getdents64(arg1, dirp, count));
7171 if (!is_error(ret)) {
7172 struct linux_dirent64 *de;
7173 int len = ret;
7174 int reclen;
7175 de = dirp;
7176 while (len > 0) {
7177 reclen = de->d_reclen;
7178 if (reclen > len)
7179 break;
7180 de->d_reclen = tswap16(reclen);
7181 tswap64s((uint64_t *)&de->d_ino);
7182 tswap64s((uint64_t *)&de->d_off);
7183 de = (struct linux_dirent64 *)((char *)de + reclen);
7184 len -= reclen;
7185 }
7186 }
7187 unlock_user(dirp, arg2, ret);
7188 }
7189 break;
7190 #endif /* TARGET_NR_getdents64 */
7191 #if defined(TARGET_NR__newselect)
7192 case TARGET_NR__newselect:
7193 ret = do_select(arg1, arg2, arg3, arg4, arg5);
7194 break;
7195 #endif
7196 #if defined(TARGET_NR_poll) || defined(TARGET_NR_ppoll)
7197 # ifdef TARGET_NR_poll
7198 case TARGET_NR_poll:
7199 # endif
7200 # ifdef TARGET_NR_ppoll
7201 case TARGET_NR_ppoll:
7202 # endif
7203 {
7204 struct target_pollfd *target_pfd;
7205 unsigned int nfds = arg2;
7206 int timeout = arg3;
7207 struct pollfd *pfd;
7208 unsigned int i;
7209
7210 target_pfd = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_pollfd) * nfds, 1);
7211 if (!target_pfd)
7212 goto efault;
7213
7214 pfd = alloca(sizeof(struct pollfd) * nfds);
7215 for(i = 0; i < nfds; i++) {
7216 pfd[i].fd = tswap32(target_pfd[i].fd);
7217 pfd[i].events = tswap16(target_pfd[i].events);
7218 }
7219
7220 # ifdef TARGET_NR_ppoll
7221 if (num == TARGET_NR_ppoll) {
7222 struct timespec _timeout_ts, *timeout_ts = &_timeout_ts;
7223 target_sigset_t *target_set;
7224 sigset_t _set, *set = &_set;
7225
7226 if (arg3) {
7227 if (target_to_host_timespec(timeout_ts, arg3)) {
7228 unlock_user(target_pfd, arg1, 0);
7229 goto efault;
7230 }
7231 } else {
7232 timeout_ts = NULL;
7233 }
7234
7235 if (arg4) {
7236 target_set = lock_user(VERIFY_READ, arg4, sizeof(target_sigset_t), 1);
7237 if (!target_set) {
7238 unlock_user(target_pfd, arg1, 0);
7239 goto efault;
7240 }
7241 target_to_host_sigset(set, target_set);
7242 } else {
7243 set = NULL;
7244 }
7245
7246 ret = get_errno(sys_ppoll(pfd, nfds, timeout_ts, set, _NSIG/8));
7247
7248 if (!is_error(ret) && arg3) {
7249 host_to_target_timespec(arg3, timeout_ts);
7250 }
7251 if (arg4) {
7252 unlock_user(target_set, arg4, 0);
7253 }
7254 } else
7255 # endif
7256 ret = get_errno(poll(pfd, nfds, timeout));
7257
7258 if (!is_error(ret)) {
7259 for(i = 0; i < nfds; i++) {
7260 target_pfd[i].revents = tswap16(pfd[i].revents);
7261 }
7262 }
7263 unlock_user(target_pfd, arg1, sizeof(struct target_pollfd) * nfds);
7264 }
7265 break;
7266 #endif
7267 case TARGET_NR_flock:
7268 /* NOTE: the flock constant seems to be the same for every
7269 Linux platform */
7270 ret = get_errno(flock(arg1, arg2));
7271 break;
7272 case TARGET_NR_readv:
7273 {
7274 struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0);
7275 if (vec != NULL) {
7276 ret = get_errno(readv(arg1, vec, arg3));
7277 unlock_iovec(vec, arg2, arg3, 1);
7278 } else {
7279 ret = -host_to_target_errno(errno);
7280 }
7281 }
7282 break;
7283 case TARGET_NR_writev:
7284 {
7285 struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
7286 if (vec != NULL) {
7287 ret = get_errno(writev(arg1, vec, arg3));
7288 unlock_iovec(vec, arg2, arg3, 0);
7289 } else {
7290 ret = -host_to_target_errno(errno);
7291 }
7292 }
7293 break;
7294 case TARGET_NR_getsid:
7295 ret = get_errno(getsid(arg1));
7296 break;
7297 #if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */
7298 case TARGET_NR_fdatasync:
7299 ret = get_errno(fdatasync(arg1));
7300 break;
7301 #endif
7302 case TARGET_NR__sysctl:
7303 /* We don't implement this, but ENOTDIR is always a safe
7304 return value. */
7305 ret = -TARGET_ENOTDIR;
7306 break;
7307 case TARGET_NR_sched_getaffinity:
7308 {
7309 unsigned int mask_size;
7310 unsigned long *mask;
7311
7312 /*
7313 * sched_getaffinity needs multiples of ulong, so need to take
7314 * care of mismatches between target ulong and host ulong sizes.
7315 */
7316 if (arg2 & (sizeof(abi_ulong) - 1)) {
7317 ret = -TARGET_EINVAL;
7318 break;
7319 }
7320 mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
7321
7322 mask = alloca(mask_size);
7323 ret = get_errno(sys_sched_getaffinity(arg1, mask_size, mask));
7324
7325 if (!is_error(ret)) {
7326 if (copy_to_user(arg3, mask, ret)) {
7327 goto efault;
7328 }
7329 }
7330 }
7331 break;
7332 case TARGET_NR_sched_setaffinity:
7333 {
7334 unsigned int mask_size;
7335 unsigned long *mask;
7336
7337 /*
7338 * sched_setaffinity needs multiples of ulong, so need to take
7339 * care of mismatches between target ulong and host ulong sizes.
7340 */
7341 if (arg2 & (sizeof(abi_ulong) - 1)) {
7342 ret = -TARGET_EINVAL;
7343 break;
7344 }
7345 mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
7346
7347 mask = alloca(mask_size);
7348 if (!lock_user_struct(VERIFY_READ, p, arg3, 1)) {
7349 goto efault;
7350 }
7351 memcpy(mask, p, arg2);
7352 unlock_user_struct(p, arg2, 0);
7353
7354 ret = get_errno(sys_sched_setaffinity(arg1, mask_size, mask));
7355 }
7356 break;
7357 case TARGET_NR_sched_setparam:
7358 {
7359 struct sched_param *target_schp;
7360 struct sched_param schp;
7361
7362 if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1))
7363 goto efault;
7364 schp.sched_priority = tswap32(target_schp->sched_priority);
7365 unlock_user_struct(target_schp, arg2, 0);
7366 ret = get_errno(sched_setparam(arg1, &schp));
7367 }
7368 break;
7369 case TARGET_NR_sched_getparam:
7370 {
7371 struct sched_param *target_schp;
7372 struct sched_param schp;
7373 ret = get_errno(sched_getparam(arg1, &schp));
7374 if (!is_error(ret)) {
7375 if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0))
7376 goto efault;
7377 target_schp->sched_priority = tswap32(schp.sched_priority);
7378 unlock_user_struct(target_schp, arg2, 1);
7379 }
7380 }
7381 break;
7382 case TARGET_NR_sched_setscheduler:
7383 {
7384 struct sched_param *target_schp;
7385 struct sched_param schp;
7386 if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1))
7387 goto efault;
7388 schp.sched_priority = tswap32(target_schp->sched_priority);
7389 unlock_user_struct(target_schp, arg3, 0);
7390 ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
7391 }
7392 break;
7393 case TARGET_NR_sched_getscheduler:
7394 ret = get_errno(sched_getscheduler(arg1));
7395 break;
7396 case TARGET_NR_sched_yield:
7397 ret = get_errno(sched_yield());
7398 break;
7399 case TARGET_NR_sched_get_priority_max:
7400 ret = get_errno(sched_get_priority_max(arg1));
7401 break;
7402 case TARGET_NR_sched_get_priority_min:
7403 ret = get_errno(sched_get_priority_min(arg1));
7404 break;
7405 case TARGET_NR_sched_rr_get_interval:
7406 {
7407 struct timespec ts;
7408 ret = get_errno(sched_rr_get_interval(arg1, &ts));
7409 if (!is_error(ret)) {
7410 host_to_target_timespec(arg2, &ts);
7411 }
7412 }
7413 break;
7414 case TARGET_NR_nanosleep:
7415 {
7416 struct timespec req, rem;
7417 target_to_host_timespec(&req, arg1);
7418 ret = get_errno(nanosleep(&req, &rem));
7419 if (is_error(ret) && arg2) {
7420 host_to_target_timespec(arg2, &rem);
7421 }
7422 }
7423 break;
7424 #ifdef TARGET_NR_query_module
7425 case TARGET_NR_query_module:
7426 goto unimplemented;
7427 #endif
7428 #ifdef TARGET_NR_nfsservctl
7429 case TARGET_NR_nfsservctl:
7430 goto unimplemented;
7431 #endif
7432 case TARGET_NR_prctl:
7433 switch (arg1) {
7434 case PR_GET_PDEATHSIG:
7435 {
7436 int deathsig;
7437 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5));
7438 if (!is_error(ret) && arg2
7439 && put_user_ual(deathsig, arg2)) {
7440 goto efault;
7441 }
7442 break;
7443 }
7444 #ifdef PR_GET_NAME
7445 case PR_GET_NAME:
7446 {
7447 void *name = lock_user(VERIFY_WRITE, arg2, 16, 1);
7448 if (!name) {
7449 goto efault;
7450 }
7451 ret = get_errno(prctl(arg1, (unsigned long)name,
7452 arg3, arg4, arg5));
7453 unlock_user(name, arg2, 16);
7454 break;
7455 }
7456 case PR_SET_NAME:
7457 {
7458 void *name = lock_user(VERIFY_READ, arg2, 16, 1);
7459 if (!name) {
7460 goto efault;
7461 }
7462 ret = get_errno(prctl(arg1, (unsigned long)name,
7463 arg3, arg4, arg5));
7464 unlock_user(name, arg2, 0);
7465 break;
7466 }
7467 #endif
7468 default:
7469 /* Most prctl options have no pointer arguments */
7470 ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5));
7471 break;
7472 }
7473 break;
7474 #ifdef TARGET_NR_arch_prctl
7475 case TARGET_NR_arch_prctl:
7476 #if defined(TARGET_I386) && !defined(TARGET_ABI32)
7477 ret = do_arch_prctl(cpu_env, arg1, arg2);
7478 break;
7479 #else
7480 goto unimplemented;
7481 #endif
7482 #endif
7483 #ifdef TARGET_NR_pread64
7484 case TARGET_NR_pread64:
7485 if (regpairs_aligned(cpu_env)) {
7486 arg4 = arg5;
7487 arg5 = arg6;
7488 }
7489 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
7490 goto efault;
7491 ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5)));
7492 unlock_user(p, arg2, ret);
7493 break;
7494 case TARGET_NR_pwrite64:
7495 if (regpairs_aligned(cpu_env)) {
7496 arg4 = arg5;
7497 arg5 = arg6;
7498 }
7499 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
7500 goto efault;
7501 ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5)));
7502 unlock_user(p, arg2, 0);
7503 break;
7504 #endif
7505 case TARGET_NR_getcwd:
7506 if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0)))
7507 goto efault;
7508 ret = get_errno(sys_getcwd1(p, arg2));
7509 unlock_user(p, arg1, ret);
7510 break;
7511 case TARGET_NR_capget:
7512 goto unimplemented;
7513 case TARGET_NR_capset:
7514 goto unimplemented;
7515 case TARGET_NR_sigaltstack:
7516 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_MIPS) || \
7517 defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA) || \
7518 defined(TARGET_M68K) || defined(TARGET_S390X) || defined(TARGET_OPENRISC)
7519 ret = do_sigaltstack(arg1, arg2, get_sp_from_cpustate((CPUArchState *)cpu_env));
7520 break;
7521 #else
7522 goto unimplemented;
7523 #endif
7524
7525 #ifdef CONFIG_SENDFILE
7526 case TARGET_NR_sendfile:
7527 {
7528 off_t *offp = NULL;
7529 off_t off;
7530 if (arg3) {
7531 ret = get_user_sal(off, arg3);
7532 if (is_error(ret)) {
7533 break;
7534 }
7535 offp = &off;
7536 }
7537 ret = get_errno(sendfile(arg1, arg2, offp, arg4));
7538 if (!is_error(ret) && arg3) {
7539 abi_long ret2 = put_user_sal(off, arg3);
7540 if (is_error(ret2)) {
7541 ret = ret2;
7542 }
7543 }
7544 break;
7545 }
7546 #ifdef TARGET_NR_sendfile64
7547 case TARGET_NR_sendfile64:
7548 {
7549 off_t *offp = NULL;
7550 off_t off;
7551 if (arg3) {
7552 ret = get_user_s64(off, arg3);
7553 if (is_error(ret)) {
7554 break;
7555 }
7556 offp = &off;
7557 }
7558 ret = get_errno(sendfile(arg1, arg2, offp, arg4));
7559 if (!is_error(ret) && arg3) {
7560 abi_long ret2 = put_user_s64(off, arg3);
7561 if (is_error(ret2)) {
7562 ret = ret2;
7563 }
7564 }
7565 break;
7566 }
7567 #endif
7568 #else
7569 case TARGET_NR_sendfile:
7570 #ifdef TARGET_NR_sendfile64
7571 case TARGET_NR_sendfile64:
7572 #endif
7573 goto unimplemented;
7574 #endif
7575
7576 #ifdef TARGET_NR_getpmsg
7577 case TARGET_NR_getpmsg:
7578 goto unimplemented;
7579 #endif
7580 #ifdef TARGET_NR_putpmsg
7581 case TARGET_NR_putpmsg:
7582 goto unimplemented;
7583 #endif
7584 #ifdef TARGET_NR_vfork
7585 case TARGET_NR_vfork:
7586 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD,
7587 0, 0, 0, 0));
7588 break;
7589 #endif
7590 #ifdef TARGET_NR_ugetrlimit
7591 case TARGET_NR_ugetrlimit:
7592 {
7593 struct rlimit rlim;
7594 int resource = target_to_host_resource(arg1);
7595 ret = get_errno(getrlimit(resource, &rlim));
7596 if (!is_error(ret)) {
7597 struct target_rlimit *target_rlim;
7598 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
7599 goto efault;
7600 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
7601 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
7602 unlock_user_struct(target_rlim, arg2, 1);
7603 }
7604 break;
7605 }
7606 #endif
7607 #ifdef TARGET_NR_truncate64
7608 case TARGET_NR_truncate64:
7609 if (!(p = lock_user_string(arg1)))
7610 goto efault;
7611 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
7612 unlock_user(p, arg1, 0);
7613 break;
7614 #endif
7615 #ifdef TARGET_NR_ftruncate64
7616 case TARGET_NR_ftruncate64:
7617 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
7618 break;
7619 #endif
7620 #ifdef TARGET_NR_stat64
7621 case TARGET_NR_stat64:
7622 if (!(p = lock_user_string(arg1)))
7623 goto efault;
7624 ret = get_errno(stat(path(p), &st));
7625 unlock_user(p, arg1, 0);
7626 if (!is_error(ret))
7627 ret = host_to_target_stat64(cpu_env, arg2, &st);
7628 break;
7629 #endif
7630 #ifdef TARGET_NR_lstat64
7631 case TARGET_NR_lstat64:
7632 if (!(p = lock_user_string(arg1)))
7633 goto efault;
7634 ret = get_errno(lstat(path(p), &st));
7635 unlock_user(p, arg1, 0);
7636 if (!is_error(ret))
7637 ret = host_to_target_stat64(cpu_env, arg2, &st);
7638 break;
7639 #endif
7640 #ifdef TARGET_NR_fstat64
7641 case TARGET_NR_fstat64:
7642 ret = get_errno(fstat(arg1, &st));
7643 if (!is_error(ret))
7644 ret = host_to_target_stat64(cpu_env, arg2, &st);
7645 break;
7646 #endif
7647 #if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat))
7648 #ifdef TARGET_NR_fstatat64
7649 case TARGET_NR_fstatat64:
7650 #endif
7651 #ifdef TARGET_NR_newfstatat
7652 case TARGET_NR_newfstatat:
7653 #endif
7654 if (!(p = lock_user_string(arg2)))
7655 goto efault;
7656 ret = get_errno(fstatat(arg1, path(p), &st, arg4));
7657 if (!is_error(ret))
7658 ret = host_to_target_stat64(cpu_env, arg3, &st);
7659 break;
7660 #endif
7661 case TARGET_NR_lchown:
7662 if (!(p = lock_user_string(arg1)))
7663 goto efault;
7664 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
7665 unlock_user(p, arg1, 0);
7666 break;
7667 #ifdef TARGET_NR_getuid
7668 case TARGET_NR_getuid:
7669 ret = get_errno(high2lowuid(getuid()));
7670 break;
7671 #endif
7672 #ifdef TARGET_NR_getgid
7673 case TARGET_NR_getgid:
7674 ret = get_errno(high2lowgid(getgid()));
7675 break;
7676 #endif
7677 #ifdef TARGET_NR_geteuid
7678 case TARGET_NR_geteuid:
7679 ret = get_errno(high2lowuid(geteuid()));
7680 break;
7681 #endif
7682 #ifdef TARGET_NR_getegid
7683 case TARGET_NR_getegid:
7684 ret = get_errno(high2lowgid(getegid()));
7685 break;
7686 #endif
7687 case TARGET_NR_setreuid:
7688 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
7689 break;
7690 case TARGET_NR_setregid:
7691 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
7692 break;
7693 case TARGET_NR_getgroups:
7694 {
7695 int gidsetsize = arg1;
7696 target_id *target_grouplist;
7697 gid_t *grouplist;
7698 int i;
7699
7700 grouplist = alloca(gidsetsize * sizeof(gid_t));
7701 ret = get_errno(getgroups(gidsetsize, grouplist));
7702 if (gidsetsize == 0)
7703 break;
7704 if (!is_error(ret)) {
7705 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * sizeof(target_id), 0);
7706 if (!target_grouplist)
7707 goto efault;
7708 for(i = 0;i < ret; i++)
7709 target_grouplist[i] = tswapid(high2lowgid(grouplist[i]));
7710 unlock_user(target_grouplist, arg2, gidsetsize * sizeof(target_id));
7711 }
7712 }
7713 break;
7714 case TARGET_NR_setgroups:
7715 {
7716 int gidsetsize = arg1;
7717 target_id *target_grouplist;
7718 gid_t *grouplist = NULL;
7719 int i;
7720 if (gidsetsize) {
7721 grouplist = alloca(gidsetsize * sizeof(gid_t));
7722 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * sizeof(target_id), 1);
7723 if (!target_grouplist) {
7724 ret = -TARGET_EFAULT;
7725 goto fail;
7726 }
7727 for (i = 0; i < gidsetsize; i++) {
7728 grouplist[i] = low2highgid(tswapid(target_grouplist[i]));
7729 }
7730 unlock_user(target_grouplist, arg2, 0);
7731 }
7732 ret = get_errno(setgroups(gidsetsize, grouplist));
7733 }
7734 break;
7735 case TARGET_NR_fchown:
7736 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
7737 break;
7738 #if defined(TARGET_NR_fchownat)
7739 case TARGET_NR_fchownat:
7740 if (!(p = lock_user_string(arg2)))
7741 goto efault;
7742 ret = get_errno(fchownat(arg1, p, low2highuid(arg3),
7743 low2highgid(arg4), arg5));
7744 unlock_user(p, arg2, 0);
7745 break;
7746 #endif
7747 #ifdef TARGET_NR_setresuid
7748 case TARGET_NR_setresuid:
7749 ret = get_errno(setresuid(low2highuid(arg1),
7750 low2highuid(arg2),
7751 low2highuid(arg3)));
7752 break;
7753 #endif
7754 #ifdef TARGET_NR_getresuid
7755 case TARGET_NR_getresuid:
7756 {
7757 uid_t ruid, euid, suid;
7758 ret = get_errno(getresuid(&ruid, &euid, &suid));
7759 if (!is_error(ret)) {
7760 if (put_user_u16(high2lowuid(ruid), arg1)
7761 || put_user_u16(high2lowuid(euid), arg2)
7762 || put_user_u16(high2lowuid(suid), arg3))
7763 goto efault;
7764 }
7765 }
7766 break;
7767 #endif
7768 #ifdef TARGET_NR_getresgid
7769 case TARGET_NR_setresgid:
7770 ret = get_errno(setresgid(low2highgid(arg1),
7771 low2highgid(arg2),
7772 low2highgid(arg3)));
7773 break;
7774 #endif
7775 #ifdef TARGET_NR_getresgid
7776 case TARGET_NR_getresgid:
7777 {
7778 gid_t rgid, egid, sgid;
7779 ret = get_errno(getresgid(&rgid, &egid, &sgid));
7780 if (!is_error(ret)) {
7781 if (put_user_u16(high2lowgid(rgid), arg1)
7782 || put_user_u16(high2lowgid(egid), arg2)
7783 || put_user_u16(high2lowgid(sgid), arg3))
7784 goto efault;
7785 }
7786 }
7787 break;
7788 #endif
7789 case TARGET_NR_chown:
7790 if (!(p = lock_user_string(arg1)))
7791 goto efault;
7792 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
7793 unlock_user(p, arg1, 0);
7794 break;
7795 case TARGET_NR_setuid:
7796 ret = get_errno(setuid(low2highuid(arg1)));
7797 break;
7798 case TARGET_NR_setgid:
7799 ret = get_errno(setgid(low2highgid(arg1)));
7800 break;
7801 case TARGET_NR_setfsuid:
7802 ret = get_errno(setfsuid(arg1));
7803 break;
7804 case TARGET_NR_setfsgid:
7805 ret = get_errno(setfsgid(arg1));
7806 break;
7807
7808 #ifdef TARGET_NR_lchown32
7809 case TARGET_NR_lchown32:
7810 if (!(p = lock_user_string(arg1)))
7811 goto efault;
7812 ret = get_errno(lchown(p, arg2, arg3));
7813 unlock_user(p, arg1, 0);
7814 break;
7815 #endif
7816 #ifdef TARGET_NR_getuid32
7817 case TARGET_NR_getuid32:
7818 ret = get_errno(getuid());
7819 break;
7820 #endif
7821
7822 #if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA)
7823 /* Alpha specific */
7824 case TARGET_NR_getxuid:
7825 {
7826 uid_t euid;
7827 euid=geteuid();
7828 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=euid;
7829 }
7830 ret = get_errno(getuid());
7831 break;
7832 #endif
7833 #if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA)
7834 /* Alpha specific */
7835 case TARGET_NR_getxgid:
7836 {
7837 uid_t egid;
7838 egid=getegid();
7839 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=egid;
7840 }
7841 ret = get_errno(getgid());
7842 break;
7843 #endif
7844 #if defined(TARGET_NR_osf_getsysinfo) && defined(TARGET_ALPHA)
7845 /* Alpha specific */
7846 case TARGET_NR_osf_getsysinfo:
7847 ret = -TARGET_EOPNOTSUPP;
7848 switch (arg1) {
7849 case TARGET_GSI_IEEE_FP_CONTROL:
7850 {
7851 uint64_t swcr, fpcr = cpu_alpha_load_fpcr (cpu_env);
7852
7853 /* Copied from linux ieee_fpcr_to_swcr. */
7854 swcr = (fpcr >> 35) & SWCR_STATUS_MASK;
7855 swcr |= (fpcr >> 36) & SWCR_MAP_DMZ;
7856 swcr |= (~fpcr >> 48) & (SWCR_TRAP_ENABLE_INV
7857 | SWCR_TRAP_ENABLE_DZE
7858 | SWCR_TRAP_ENABLE_OVF);
7859 swcr |= (~fpcr >> 57) & (SWCR_TRAP_ENABLE_UNF
7860 | SWCR_TRAP_ENABLE_INE);
7861 swcr |= (fpcr >> 47) & SWCR_MAP_UMZ;
7862 swcr |= (~fpcr >> 41) & SWCR_TRAP_ENABLE_DNO;
7863
7864 if (put_user_u64 (swcr, arg2))
7865 goto efault;
7866 ret = 0;
7867 }
7868 break;
7869
7870 /* case GSI_IEEE_STATE_AT_SIGNAL:
7871 -- Not implemented in linux kernel.
7872 case GSI_UACPROC:
7873 -- Retrieves current unaligned access state; not much used.
7874 case GSI_PROC_TYPE:
7875 -- Retrieves implver information; surely not used.
7876 case GSI_GET_HWRPB:
7877 -- Grabs a copy of the HWRPB; surely not used.
7878 */
7879 }
7880 break;
7881 #endif
7882 #if defined(TARGET_NR_osf_setsysinfo) && defined(TARGET_ALPHA)
7883 /* Alpha specific */
7884 case TARGET_NR_osf_setsysinfo:
7885 ret = -TARGET_EOPNOTSUPP;
7886 switch (arg1) {
7887 case TARGET_SSI_IEEE_FP_CONTROL:
7888 {
7889 uint64_t swcr, fpcr, orig_fpcr;
7890
7891 if (get_user_u64 (swcr, arg2)) {
7892 goto efault;
7893 }
7894 orig_fpcr = cpu_alpha_load_fpcr(cpu_env);
7895 fpcr = orig_fpcr & FPCR_DYN_MASK;
7896
7897 /* Copied from linux ieee_swcr_to_fpcr. */
7898 fpcr |= (swcr & SWCR_STATUS_MASK) << 35;
7899 fpcr |= (swcr & SWCR_MAP_DMZ) << 36;
7900 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_INV
7901 | SWCR_TRAP_ENABLE_DZE
7902 | SWCR_TRAP_ENABLE_OVF)) << 48;
7903 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_UNF
7904 | SWCR_TRAP_ENABLE_INE)) << 57;
7905 fpcr |= (swcr & SWCR_MAP_UMZ ? FPCR_UNDZ | FPCR_UNFD : 0);
7906 fpcr |= (~swcr & SWCR_TRAP_ENABLE_DNO) << 41;
7907
7908 cpu_alpha_store_fpcr(cpu_env, fpcr);
7909 ret = 0;
7910 }
7911 break;
7912
7913 case TARGET_SSI_IEEE_RAISE_EXCEPTION:
7914 {
7915 uint64_t exc, fpcr, orig_fpcr;
7916 int si_code;
7917
7918 if (get_user_u64(exc, arg2)) {
7919 goto efault;
7920 }
7921
7922 orig_fpcr = cpu_alpha_load_fpcr(cpu_env);
7923
7924 /* We only add to the exception status here. */
7925 fpcr = orig_fpcr | ((exc & SWCR_STATUS_MASK) << 35);
7926
7927 cpu_alpha_store_fpcr(cpu_env, fpcr);
7928 ret = 0;
7929
7930 /* Old exceptions are not signaled. */
7931 fpcr &= ~(orig_fpcr & FPCR_STATUS_MASK);
7932
7933 /* If any exceptions set by this call,
7934 and are unmasked, send a signal. */
7935 si_code = 0;
7936 if ((fpcr & (FPCR_INE | FPCR_INED)) == FPCR_INE) {
7937 si_code = TARGET_FPE_FLTRES;
7938 }
7939 if ((fpcr & (FPCR_UNF | FPCR_UNFD)) == FPCR_UNF) {
7940 si_code = TARGET_FPE_FLTUND;
7941 }
7942 if ((fpcr & (FPCR_OVF | FPCR_OVFD)) == FPCR_OVF) {
7943 si_code = TARGET_FPE_FLTOVF;
7944 }
7945 if ((fpcr & (FPCR_DZE | FPCR_DZED)) == FPCR_DZE) {
7946 si_code = TARGET_FPE_FLTDIV;
7947 }
7948 if ((fpcr & (FPCR_INV | FPCR_INVD)) == FPCR_INV) {
7949 si_code = TARGET_FPE_FLTINV;
7950 }
7951 if (si_code != 0) {
7952 target_siginfo_t info;
7953 info.si_signo = SIGFPE;
7954 info.si_errno = 0;
7955 info.si_code = si_code;
7956 info._sifields._sigfault._addr
7957 = ((CPUArchState *)cpu_env)->pc;
7958 queue_signal((CPUArchState *)cpu_env, info.si_signo, &info);
7959 }
7960 }
7961 break;
7962
7963 /* case SSI_NVPAIRS:
7964 -- Used with SSIN_UACPROC to enable unaligned accesses.
7965 case SSI_IEEE_STATE_AT_SIGNAL:
7966 case SSI_IEEE_IGNORE_STATE_AT_SIGNAL:
7967 -- Not implemented in linux kernel
7968 */
7969 }
7970 break;
7971 #endif
7972 #ifdef TARGET_NR_osf_sigprocmask
7973 /* Alpha specific. */
7974 case TARGET_NR_osf_sigprocmask:
7975 {
7976 abi_ulong mask;
7977 int how;
7978 sigset_t set, oldset;
7979
7980 switch(arg1) {
7981 case TARGET_SIG_BLOCK:
7982 how = SIG_BLOCK;
7983 break;
7984 case TARGET_SIG_UNBLOCK:
7985 how = SIG_UNBLOCK;
7986 break;
7987 case TARGET_SIG_SETMASK:
7988 how = SIG_SETMASK;
7989 break;
7990 default:
7991 ret = -TARGET_EINVAL;
7992 goto fail;
7993 }
7994 mask = arg2;
7995 target_to_host_old_sigset(&set, &mask);
7996 sigprocmask(how, &set, &oldset);
7997 host_to_target_old_sigset(&mask, &oldset);
7998 ret = mask;
7999 }
8000 break;
8001 #endif
8002
8003 #ifdef TARGET_NR_getgid32
8004 case TARGET_NR_getgid32:
8005 ret = get_errno(getgid());
8006 break;
8007 #endif
8008 #ifdef TARGET_NR_geteuid32
8009 case TARGET_NR_geteuid32:
8010 ret = get_errno(geteuid());
8011 break;
8012 #endif
8013 #ifdef TARGET_NR_getegid32
8014 case TARGET_NR_getegid32:
8015 ret = get_errno(getegid());
8016 break;
8017 #endif
8018 #ifdef TARGET_NR_setreuid32
8019 case TARGET_NR_setreuid32:
8020 ret = get_errno(setreuid(arg1, arg2));
8021 break;
8022 #endif
8023 #ifdef TARGET_NR_setregid32
8024 case TARGET_NR_setregid32:
8025 ret = get_errno(setregid(arg1, arg2));
8026 break;
8027 #endif
8028 #ifdef TARGET_NR_getgroups32
8029 case TARGET_NR_getgroups32:
8030 {
8031 int gidsetsize = arg1;
8032 uint32_t *target_grouplist;
8033 gid_t *grouplist;
8034 int i;
8035
8036 grouplist = alloca(gidsetsize * sizeof(gid_t));
8037 ret = get_errno(getgroups(gidsetsize, grouplist));
8038 if (gidsetsize == 0)
8039 break;
8040 if (!is_error(ret)) {
8041 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0);
8042 if (!target_grouplist) {
8043 ret = -TARGET_EFAULT;
8044 goto fail;
8045 }
8046 for(i = 0;i < ret; i++)
8047 target_grouplist[i] = tswap32(grouplist[i]);
8048 unlock_user(target_grouplist, arg2, gidsetsize * 4);
8049 }
8050 }
8051 break;
8052 #endif
8053 #ifdef TARGET_NR_setgroups32
8054 case TARGET_NR_setgroups32:
8055 {
8056 int gidsetsize = arg1;
8057 uint32_t *target_grouplist;
8058 gid_t *grouplist;
8059 int i;
8060
8061 grouplist = alloca(gidsetsize * sizeof(gid_t));
8062 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1);
8063 if (!target_grouplist) {
8064 ret = -TARGET_EFAULT;
8065 goto fail;
8066 }
8067 for(i = 0;i < gidsetsize; i++)
8068 grouplist[i] = tswap32(target_grouplist[i]);
8069 unlock_user(target_grouplist, arg2, 0);
8070 ret = get_errno(setgroups(gidsetsize, grouplist));
8071 }
8072 break;
8073 #endif
8074 #ifdef TARGET_NR_fchown32
8075 case TARGET_NR_fchown32:
8076 ret = get_errno(fchown(arg1, arg2, arg3));
8077 break;
8078 #endif
8079 #ifdef TARGET_NR_setresuid32
8080 case TARGET_NR_setresuid32:
8081 ret = get_errno(setresuid(arg1, arg2, arg3));
8082 break;
8083 #endif
8084 #ifdef TARGET_NR_getresuid32
8085 case TARGET_NR_getresuid32:
8086 {
8087 uid_t ruid, euid, suid;
8088 ret = get_errno(getresuid(&ruid, &euid, &suid));
8089 if (!is_error(ret)) {
8090 if (put_user_u32(ruid, arg1)
8091 || put_user_u32(euid, arg2)
8092 || put_user_u32(suid, arg3))
8093 goto efault;
8094 }
8095 }
8096 break;
8097 #endif
8098 #ifdef TARGET_NR_setresgid32
8099 case TARGET_NR_setresgid32:
8100 ret = get_errno(setresgid(arg1, arg2, arg3));
8101 break;
8102 #endif
8103 #ifdef TARGET_NR_getresgid32
8104 case TARGET_NR_getresgid32:
8105 {
8106 gid_t rgid, egid, sgid;
8107 ret = get_errno(getresgid(&rgid, &egid, &sgid));
8108 if (!is_error(ret)) {
8109 if (put_user_u32(rgid, arg1)
8110 || put_user_u32(egid, arg2)
8111 || put_user_u32(sgid, arg3))
8112 goto efault;
8113 }
8114 }
8115 break;
8116 #endif
8117 #ifdef TARGET_NR_chown32
8118 case TARGET_NR_chown32:
8119 if (!(p = lock_user_string(arg1)))
8120 goto efault;
8121 ret = get_errno(chown(p, arg2, arg3));
8122 unlock_user(p, arg1, 0);
8123 break;
8124 #endif
8125 #ifdef TARGET_NR_setuid32
8126 case TARGET_NR_setuid32:
8127 ret = get_errno(setuid(arg1));
8128 break;
8129 #endif
8130 #ifdef TARGET_NR_setgid32
8131 case TARGET_NR_setgid32:
8132 ret = get_errno(setgid(arg1));
8133 break;
8134 #endif
8135 #ifdef TARGET_NR_setfsuid32
8136 case TARGET_NR_setfsuid32:
8137 ret = get_errno(setfsuid(arg1));
8138 break;
8139 #endif
8140 #ifdef TARGET_NR_setfsgid32
8141 case TARGET_NR_setfsgid32:
8142 ret = get_errno(setfsgid(arg1));
8143 break;
8144 #endif
8145
8146 case TARGET_NR_pivot_root:
8147 goto unimplemented;
8148 #ifdef TARGET_NR_mincore
8149 case TARGET_NR_mincore:
8150 {
8151 void *a;
8152 ret = -TARGET_EFAULT;
8153 if (!(a = lock_user(VERIFY_READ, arg1,arg2, 0)))
8154 goto efault;
8155 if (!(p = lock_user_string(arg3)))
8156 goto mincore_fail;
8157 ret = get_errno(mincore(a, arg2, p));
8158 unlock_user(p, arg3, ret);
8159 mincore_fail:
8160 unlock_user(a, arg1, 0);
8161 }
8162 break;
8163 #endif
8164 #ifdef TARGET_NR_arm_fadvise64_64
8165 case TARGET_NR_arm_fadvise64_64:
8166 {
8167 /*
8168 * arm_fadvise64_64 looks like fadvise64_64 but
8169 * with different argument order
8170 */
8171 abi_long temp;
8172 temp = arg3;
8173 arg3 = arg4;
8174 arg4 = temp;
8175 }
8176 #endif
8177 #if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_arm_fadvise64_64) || defined(TARGET_NR_fadvise64)
8178 #ifdef TARGET_NR_fadvise64_64
8179 case TARGET_NR_fadvise64_64:
8180 #endif
8181 #ifdef TARGET_NR_fadvise64
8182 case TARGET_NR_fadvise64:
8183 #endif
8184 #ifdef TARGET_S390X
8185 switch (arg4) {
8186 case 4: arg4 = POSIX_FADV_NOREUSE + 1; break; /* make sure it's an invalid value */
8187 case 5: arg4 = POSIX_FADV_NOREUSE + 2; break; /* ditto */
8188 case 6: arg4 = POSIX_FADV_DONTNEED; break;
8189 case 7: arg4 = POSIX_FADV_NOREUSE; break;
8190 default: break;
8191 }
8192 #endif
8193 ret = -posix_fadvise(arg1, arg2, arg3, arg4);
8194 break;
8195 #endif
8196 #ifdef TARGET_NR_madvise
8197 case TARGET_NR_madvise:
8198 /* A straight passthrough may not be safe because qemu sometimes
8199 turns private file-backed mappings into anonymous mappings.
8200 This will break MADV_DONTNEED.
8201 This is a hint, so ignoring and returning success is ok. */
8202 ret = get_errno(0);
8203 break;
8204 #endif
8205 #if TARGET_ABI_BITS == 32
8206 case TARGET_NR_fcntl64:
8207 {
8208 int cmd;
8209 struct flock64 fl;
8210 struct target_flock64 *target_fl;
8211 #ifdef TARGET_ARM
8212 struct target_eabi_flock64 *target_efl;
8213 #endif
8214
8215 cmd = target_to_host_fcntl_cmd(arg2);
8216 if (cmd == -TARGET_EINVAL) {
8217 ret = cmd;
8218 break;
8219 }
8220
8221 switch(arg2) {
8222 case TARGET_F_GETLK64:
8223 #ifdef TARGET_ARM
8224 if (((CPUARMState *)cpu_env)->eabi) {
8225 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1))
8226 goto efault;
8227 fl.l_type = tswap16(target_efl->l_type);
8228 fl.l_whence = tswap16(target_efl->l_whence);
8229 fl.l_start = tswap64(target_efl->l_start);
8230 fl.l_len = tswap64(target_efl->l_len);
8231 fl.l_pid = tswap32(target_efl->l_pid);
8232 unlock_user_struct(target_efl, arg3, 0);
8233 } else
8234 #endif
8235 {
8236 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1))
8237 goto efault;
8238 fl.l_type = tswap16(target_fl->l_type);
8239 fl.l_whence = tswap16(target_fl->l_whence);
8240 fl.l_start = tswap64(target_fl->l_start);
8241 fl.l_len = tswap64(target_fl->l_len);
8242 fl.l_pid = tswap32(target_fl->l_pid);
8243 unlock_user_struct(target_fl, arg3, 0);
8244 }
8245 ret = get_errno(fcntl(arg1, cmd, &fl));
8246 if (ret == 0) {
8247 #ifdef TARGET_ARM
8248 if (((CPUARMState *)cpu_env)->eabi) {
8249 if (!lock_user_struct(VERIFY_WRITE, target_efl, arg3, 0))
8250 goto efault;
8251 target_efl->l_type = tswap16(fl.l_type);
8252 target_efl->l_whence = tswap16(fl.l_whence);
8253 target_efl->l_start = tswap64(fl.l_start);
8254 target_efl->l_len = tswap64(fl.l_len);
8255 target_efl->l_pid = tswap32(fl.l_pid);
8256 unlock_user_struct(target_efl, arg3, 1);
8257 } else
8258 #endif
8259 {
8260 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg3, 0))
8261 goto efault;
8262 target_fl->l_type = tswap16(fl.l_type);
8263 target_fl->l_whence = tswap16(fl.l_whence);
8264 target_fl->l_start = tswap64(fl.l_start);
8265 target_fl->l_len = tswap64(fl.l_len);
8266 target_fl->l_pid = tswap32(fl.l_pid);
8267 unlock_user_struct(target_fl, arg3, 1);
8268 }
8269 }
8270 break;
8271
8272 case TARGET_F_SETLK64:
8273 case TARGET_F_SETLKW64:
8274 #ifdef TARGET_ARM
8275 if (((CPUARMState *)cpu_env)->eabi) {
8276 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1))
8277 goto efault;
8278 fl.l_type = tswap16(target_efl->l_type);
8279 fl.l_whence = tswap16(target_efl->l_whence);
8280 fl.l_start = tswap64(target_efl->l_start);
8281 fl.l_len = tswap64(target_efl->l_len);
8282 fl.l_pid = tswap32(target_efl->l_pid);
8283 unlock_user_struct(target_efl, arg3, 0);
8284 } else
8285 #endif
8286 {
8287 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1))
8288 goto efault;
8289 fl.l_type = tswap16(target_fl->l_type);
8290 fl.l_whence = tswap16(target_fl->l_whence);
8291 fl.l_start = tswap64(target_fl->l_start);
8292 fl.l_len = tswap64(target_fl->l_len);
8293 fl.l_pid = tswap32(target_fl->l_pid);
8294 unlock_user_struct(target_fl, arg3, 0);
8295 }
8296 ret = get_errno(fcntl(arg1, cmd, &fl));
8297 break;
8298 default:
8299 ret = do_fcntl(arg1, arg2, arg3);
8300 break;
8301 }
8302 break;
8303 }
8304 #endif
8305 #ifdef TARGET_NR_cacheflush
8306 case TARGET_NR_cacheflush:
8307 /* self-modifying code is handled automatically, so nothing needed */
8308 ret = 0;
8309 break;
8310 #endif
8311 #ifdef TARGET_NR_security
8312 case TARGET_NR_security:
8313 goto unimplemented;
8314 #endif
8315 #ifdef TARGET_NR_getpagesize
8316 case TARGET_NR_getpagesize:
8317 ret = TARGET_PAGE_SIZE;
8318 break;
8319 #endif
8320 case TARGET_NR_gettid:
8321 ret = get_errno(gettid());
8322 break;
8323 #ifdef TARGET_NR_readahead
8324 case TARGET_NR_readahead:
8325 #if TARGET_ABI_BITS == 32
8326 if (regpairs_aligned(cpu_env)) {
8327 arg2 = arg3;
8328 arg3 = arg4;
8329 arg4 = arg5;
8330 }
8331 ret = get_errno(readahead(arg1, ((off64_t)arg3 << 32) | arg2, arg4));
8332 #else
8333 ret = get_errno(readahead(arg1, arg2, arg3));
8334 #endif
8335 break;
8336 #endif
8337 #ifdef CONFIG_ATTR
8338 #ifdef TARGET_NR_setxattr
8339 case TARGET_NR_listxattr:
8340 case TARGET_NR_llistxattr:
8341 {
8342 void *p, *b = 0;
8343 if (arg2) {
8344 b = lock_user(VERIFY_WRITE, arg2, arg3, 0);
8345 if (!b) {
8346 ret = -TARGET_EFAULT;
8347 break;
8348 }
8349 }
8350 p = lock_user_string(arg1);
8351 if (p) {
8352 if (num == TARGET_NR_listxattr) {
8353 ret = get_errno(listxattr(p, b, arg3));
8354 } else {
8355 ret = get_errno(llistxattr(p, b, arg3));
8356 }
8357 } else {
8358 ret = -TARGET_EFAULT;
8359 }
8360 unlock_user(p, arg1, 0);
8361 unlock_user(b, arg2, arg3);
8362 break;
8363 }
8364 case TARGET_NR_flistxattr:
8365 {
8366 void *b = 0;
8367 if (arg2) {
8368 b = lock_user(VERIFY_WRITE, arg2, arg3, 0);
8369 if (!b) {
8370 ret = -TARGET_EFAULT;
8371 break;
8372 }
8373 }
8374 ret = get_errno(flistxattr(arg1, b, arg3));
8375 unlock_user(b, arg2, arg3);
8376 break;
8377 }
8378 case TARGET_NR_setxattr:
8379 case TARGET_NR_lsetxattr:
8380 {
8381 void *p, *n, *v = 0;
8382 if (arg3) {
8383 v = lock_user(VERIFY_READ, arg3, arg4, 1);
8384 if (!v) {
8385 ret = -TARGET_EFAULT;
8386 break;
8387 }
8388 }
8389 p = lock_user_string(arg1);
8390 n = lock_user_string(arg2);
8391 if (p && n) {
8392 if (num == TARGET_NR_setxattr) {
8393 ret = get_errno(setxattr(p, n, v, arg4, arg5));
8394 } else {
8395 ret = get_errno(lsetxattr(p, n, v, arg4, arg5));
8396 }
8397 } else {
8398 ret = -TARGET_EFAULT;
8399 }
8400 unlock_user(p, arg1, 0);
8401 unlock_user(n, arg2, 0);
8402 unlock_user(v, arg3, 0);
8403 }
8404 break;
8405 case TARGET_NR_fsetxattr:
8406 {
8407 void *n, *v = 0;
8408 if (arg3) {
8409 v = lock_user(VERIFY_READ, arg3, arg4, 1);
8410 if (!v) {
8411 ret = -TARGET_EFAULT;
8412 break;
8413 }
8414 }
8415 n = lock_user_string(arg2);
8416 if (n) {
8417 ret = get_errno(fsetxattr(arg1, n, v, arg4, arg5));
8418 } else {
8419 ret = -TARGET_EFAULT;
8420 }
8421 unlock_user(n, arg2, 0);
8422 unlock_user(v, arg3, 0);
8423 }
8424 break;
8425 case TARGET_NR_getxattr:
8426 case TARGET_NR_lgetxattr:
8427 {
8428 void *p, *n, *v = 0;
8429 if (arg3) {
8430 v = lock_user(VERIFY_WRITE, arg3, arg4, 0);
8431 if (!v) {
8432 ret = -TARGET_EFAULT;
8433 break;
8434 }
8435 }
8436 p = lock_user_string(arg1);
8437 n = lock_user_string(arg2);
8438 if (p && n) {
8439 if (num == TARGET_NR_getxattr) {
8440 ret = get_errno(getxattr(p, n, v, arg4));
8441 } else {
8442 ret = get_errno(lgetxattr(p, n, v, arg4));
8443 }
8444 } else {
8445 ret = -TARGET_EFAULT;
8446 }
8447 unlock_user(p, arg1, 0);
8448 unlock_user(n, arg2, 0);
8449 unlock_user(v, arg3, arg4);
8450 }
8451 break;
8452 case TARGET_NR_fgetxattr:
8453 {
8454 void *n, *v = 0;
8455 if (arg3) {
8456 v = lock_user(VERIFY_WRITE, arg3, arg4, 0);
8457 if (!v) {
8458 ret = -TARGET_EFAULT;
8459 break;
8460 }
8461 }
8462 n = lock_user_string(arg2);
8463 if (n) {
8464 ret = get_errno(fgetxattr(arg1, n, v, arg4));
8465 } else {
8466 ret = -TARGET_EFAULT;
8467 }
8468 unlock_user(n, arg2, 0);
8469 unlock_user(v, arg3, arg4);
8470 }
8471 break;
8472 case TARGET_NR_removexattr:
8473 case TARGET_NR_lremovexattr:
8474 {
8475 void *p, *n;
8476 p = lock_user_string(arg1);
8477 n = lock_user_string(arg2);
8478 if (p && n) {
8479 if (num == TARGET_NR_removexattr) {
8480 ret = get_errno(removexattr(p, n));
8481 } else {
8482 ret = get_errno(lremovexattr(p, n));
8483 }
8484 } else {
8485 ret = -TARGET_EFAULT;
8486 }
8487 unlock_user(p, arg1, 0);
8488 unlock_user(n, arg2, 0);
8489 }
8490 break;
8491 case TARGET_NR_fremovexattr:
8492 {
8493 void *n;
8494 n = lock_user_string(arg2);
8495 if (n) {
8496 ret = get_errno(fremovexattr(arg1, n));
8497 } else {
8498 ret = -TARGET_EFAULT;
8499 }
8500 unlock_user(n, arg2, 0);
8501 }
8502 break;
8503 #endif
8504 #endif /* CONFIG_ATTR */
8505 #ifdef TARGET_NR_set_thread_area
8506 case TARGET_NR_set_thread_area:
8507 #if defined(TARGET_MIPS)
8508 ((CPUMIPSState *) cpu_env)->tls_value = arg1;
8509 ret = 0;
8510 break;
8511 #elif defined(TARGET_CRIS)
8512 if (arg1 & 0xff)
8513 ret = -TARGET_EINVAL;
8514 else {
8515 ((CPUCRISState *) cpu_env)->pregs[PR_PID] = arg1;
8516 ret = 0;
8517 }
8518 break;
8519 #elif defined(TARGET_I386) && defined(TARGET_ABI32)
8520 ret = do_set_thread_area(cpu_env, arg1);
8521 break;
8522 #elif defined(TARGET_M68K)
8523 {
8524 TaskState *ts = ((CPUArchState *)cpu_env)->opaque;
8525 ts->tp_value = arg1;
8526 break;
8527 }
8528 #else
8529 goto unimplemented_nowarn;
8530 #endif
8531 #endif
8532 #ifdef TARGET_NR_get_thread_area
8533 case TARGET_NR_get_thread_area:
8534 #if defined(TARGET_I386) && defined(TARGET_ABI32)
8535 ret = do_get_thread_area(cpu_env, arg1);
8536 break;
8537 #elif defined(TARGET_M68K)
8538 {
8539 TaskState *ts = ((CPUArchState *)cpu_env)->opaque;
8540 ret = ts->tp_value;
8541 break;
8542 }
8543 #else
8544 goto unimplemented_nowarn;
8545 #endif
8546 #endif
8547 #ifdef TARGET_NR_getdomainname
8548 case TARGET_NR_getdomainname:
8549 goto unimplemented_nowarn;
8550 #endif
8551
8552 #ifdef TARGET_NR_clock_gettime
8553 case TARGET_NR_clock_gettime:
8554 {
8555 struct timespec ts;
8556 ret = get_errno(clock_gettime(arg1, &ts));
8557 if (!is_error(ret)) {
8558 host_to_target_timespec(arg2, &ts);
8559 }
8560 break;
8561 }
8562 #endif
8563 #ifdef TARGET_NR_clock_getres
8564 case TARGET_NR_clock_getres:
8565 {
8566 struct timespec ts;
8567 ret = get_errno(clock_getres(arg1, &ts));
8568 if (!is_error(ret)) {
8569 host_to_target_timespec(arg2, &ts);
8570 }
8571 break;
8572 }
8573 #endif
8574 #ifdef TARGET_NR_clock_nanosleep
8575 case TARGET_NR_clock_nanosleep:
8576 {
8577 struct timespec ts;
8578 target_to_host_timespec(&ts, arg3);
8579 ret = get_errno(clock_nanosleep(arg1, arg2, &ts, arg4 ? &ts : NULL));
8580 if (arg4)
8581 host_to_target_timespec(arg4, &ts);
8582 break;
8583 }
8584 #endif
8585
8586 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
8587 case TARGET_NR_set_tid_address:
8588 ret = get_errno(set_tid_address((int *)g2h(arg1)));
8589 break;
8590 #endif
8591
8592 #if defined(TARGET_NR_tkill) && defined(__NR_tkill)
8593 case TARGET_NR_tkill:
8594 ret = get_errno(sys_tkill((int)arg1, target_to_host_signal(arg2)));
8595 break;
8596 #endif
8597
8598 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
8599 case TARGET_NR_tgkill:
8600 ret = get_errno(sys_tgkill((int)arg1, (int)arg2,
8601 target_to_host_signal(arg3)));
8602 break;
8603 #endif
8604
8605 #ifdef TARGET_NR_set_robust_list
8606 case TARGET_NR_set_robust_list:
8607 case TARGET_NR_get_robust_list:
8608 /* The ABI for supporting robust futexes has userspace pass
8609 * the kernel a pointer to a linked list which is updated by
8610 * userspace after the syscall; the list is walked by the kernel
8611 * when the thread exits. Since the linked list in QEMU guest
8612 * memory isn't a valid linked list for the host and we have
8613 * no way to reliably intercept the thread-death event, we can't
8614 * support these. Silently return ENOSYS so that guest userspace
8615 * falls back to a non-robust futex implementation (which should
8616 * be OK except in the corner case of the guest crashing while
8617 * holding a mutex that is shared with another process via
8618 * shared memory).
8619 */
8620 goto unimplemented_nowarn;
8621 #endif
8622
8623 #if defined(TARGET_NR_utimensat)
8624 case TARGET_NR_utimensat:
8625 {
8626 struct timespec *tsp, ts[2];
8627 if (!arg3) {
8628 tsp = NULL;
8629 } else {
8630 target_to_host_timespec(ts, arg3);
8631 target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec));
8632 tsp = ts;
8633 }
8634 if (!arg2)
8635 ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4));
8636 else {
8637 if (!(p = lock_user_string(arg2))) {
8638 ret = -TARGET_EFAULT;
8639 goto fail;
8640 }
8641 ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4));
8642 unlock_user(p, arg2, 0);
8643 }
8644 }
8645 break;
8646 #endif
8647 case TARGET_NR_futex:
8648 ret = do_futex(arg1, arg2, arg3, arg4, arg5, arg6);
8649 break;
8650 #if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
8651 case TARGET_NR_inotify_init:
8652 ret = get_errno(sys_inotify_init());
8653 break;
8654 #endif
8655 #ifdef CONFIG_INOTIFY1
8656 #if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
8657 case TARGET_NR_inotify_init1:
8658 ret = get_errno(sys_inotify_init1(arg1));
8659 break;
8660 #endif
8661 #endif
8662 #if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
8663 case TARGET_NR_inotify_add_watch:
8664 p = lock_user_string(arg2);
8665 ret = get_errno(sys_inotify_add_watch(arg1, path(p), arg3));
8666 unlock_user(p, arg2, 0);
8667 break;
8668 #endif
8669 #if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
8670 case TARGET_NR_inotify_rm_watch:
8671 ret = get_errno(sys_inotify_rm_watch(arg1, arg2));
8672 break;
8673 #endif
8674
8675 #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
8676 case TARGET_NR_mq_open:
8677 {
8678 struct mq_attr posix_mq_attr;
8679
8680 p = lock_user_string(arg1 - 1);
8681 if (arg4 != 0)
8682 copy_from_user_mq_attr (&posix_mq_attr, arg4);
8683 ret = get_errno(mq_open(p, arg2, arg3, &posix_mq_attr));
8684 unlock_user (p, arg1, 0);
8685 }
8686 break;
8687
8688 case TARGET_NR_mq_unlink:
8689 p = lock_user_string(arg1 - 1);
8690 ret = get_errno(mq_unlink(p));
8691 unlock_user (p, arg1, 0);
8692 break;
8693
8694 case TARGET_NR_mq_timedsend:
8695 {
8696 struct timespec ts;
8697
8698 p = lock_user (VERIFY_READ, arg2, arg3, 1);
8699 if (arg5 != 0) {
8700 target_to_host_timespec(&ts, arg5);
8701 ret = get_errno(mq_timedsend(arg1, p, arg3, arg4, &ts));
8702 host_to_target_timespec(arg5, &ts);
8703 }
8704 else
8705 ret = get_errno(mq_send(arg1, p, arg3, arg4));
8706 unlock_user (p, arg2, arg3);
8707 }
8708 break;
8709
8710 case TARGET_NR_mq_timedreceive:
8711 {
8712 struct timespec ts;
8713 unsigned int prio;
8714
8715 p = lock_user (VERIFY_READ, arg2, arg3, 1);
8716 if (arg5 != 0) {
8717 target_to_host_timespec(&ts, arg5);
8718 ret = get_errno(mq_timedreceive(arg1, p, arg3, &prio, &ts));
8719 host_to_target_timespec(arg5, &ts);
8720 }
8721 else
8722 ret = get_errno(mq_receive(arg1, p, arg3, &prio));
8723 unlock_user (p, arg2, arg3);
8724 if (arg4 != 0)
8725 put_user_u32(prio, arg4);
8726 }
8727 break;
8728
8729 /* Not implemented for now... */
8730 /* case TARGET_NR_mq_notify: */
8731 /* break; */
8732
8733 case TARGET_NR_mq_getsetattr:
8734 {
8735 struct mq_attr posix_mq_attr_in, posix_mq_attr_out;
8736 ret = 0;
8737 if (arg3 != 0) {
8738 ret = mq_getattr(arg1, &posix_mq_attr_out);
8739 copy_to_user_mq_attr(arg3, &posix_mq_attr_out);
8740 }
8741 if (arg2 != 0) {
8742 copy_from_user_mq_attr(&posix_mq_attr_in, arg2);
8743 ret |= mq_setattr(arg1, &posix_mq_attr_in, &posix_mq_attr_out);
8744 }
8745
8746 }
8747 break;
8748 #endif
8749
8750 #ifdef CONFIG_SPLICE
8751 #ifdef TARGET_NR_tee
8752 case TARGET_NR_tee:
8753 {
8754 ret = get_errno(tee(arg1,arg2,arg3,arg4));
8755 }
8756 break;
8757 #endif
8758 #ifdef TARGET_NR_splice
8759 case TARGET_NR_splice:
8760 {
8761 loff_t loff_in, loff_out;
8762 loff_t *ploff_in = NULL, *ploff_out = NULL;
8763 if(arg2) {
8764 get_user_u64(loff_in, arg2);
8765 ploff_in = &loff_in;
8766 }
8767 if(arg4) {
8768 get_user_u64(loff_out, arg2);
8769 ploff_out = &loff_out;
8770 }
8771 ret = get_errno(splice(arg1, ploff_in, arg3, ploff_out, arg5, arg6));
8772 }
8773 break;
8774 #endif
8775 #ifdef TARGET_NR_vmsplice
8776 case TARGET_NR_vmsplice:
8777 {
8778 struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
8779 if (vec != NULL) {
8780 ret = get_errno(vmsplice(arg1, vec, arg3, arg4));
8781 unlock_iovec(vec, arg2, arg3, 0);
8782 } else {
8783 ret = -host_to_target_errno(errno);
8784 }
8785 }
8786 break;
8787 #endif
8788 #endif /* CONFIG_SPLICE */
8789 #ifdef CONFIG_EVENTFD
8790 #if defined(TARGET_NR_eventfd)
8791 case TARGET_NR_eventfd:
8792 ret = get_errno(eventfd(arg1, 0));
8793 break;
8794 #endif
8795 #if defined(TARGET_NR_eventfd2)
8796 case TARGET_NR_eventfd2:
8797 {
8798 int host_flags = arg2 & (~(TARGET_O_NONBLOCK | TARGET_O_CLOEXEC));
8799 if (arg2 & TARGET_O_NONBLOCK) {
8800 host_flags |= O_NONBLOCK;
8801 }
8802 if (arg2 & TARGET_O_CLOEXEC) {
8803 host_flags |= O_CLOEXEC;
8804 }
8805 ret = get_errno(eventfd(arg1, host_flags));
8806 break;
8807 }
8808 #endif
8809 #endif /* CONFIG_EVENTFD */
8810 #if defined(CONFIG_FALLOCATE) && defined(TARGET_NR_fallocate)
8811 case TARGET_NR_fallocate:
8812 #if TARGET_ABI_BITS == 32
8813 ret = get_errno(fallocate(arg1, arg2, target_offset64(arg3, arg4),
8814 target_offset64(arg5, arg6)));
8815 #else
8816 ret = get_errno(fallocate(arg1, arg2, arg3, arg4));
8817 #endif
8818 break;
8819 #endif
8820 #if defined(CONFIG_SYNC_FILE_RANGE)
8821 #if defined(TARGET_NR_sync_file_range)
8822 case TARGET_NR_sync_file_range:
8823 #if TARGET_ABI_BITS == 32
8824 #if defined(TARGET_MIPS)
8825 ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
8826 target_offset64(arg5, arg6), arg7));
8827 #else
8828 ret = get_errno(sync_file_range(arg1, target_offset64(arg2, arg3),
8829 target_offset64(arg4, arg5), arg6));
8830 #endif /* !TARGET_MIPS */
8831 #else
8832 ret = get_errno(sync_file_range(arg1, arg2, arg3, arg4));
8833 #endif
8834 break;
8835 #endif
8836 #if defined(TARGET_NR_sync_file_range2)
8837 case TARGET_NR_sync_file_range2:
8838 /* This is like sync_file_range but the arguments are reordered */
8839 #if TARGET_ABI_BITS == 32
8840 ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
8841 target_offset64(arg5, arg6), arg2));
8842 #else
8843 ret = get_errno(sync_file_range(arg1, arg3, arg4, arg2));
8844 #endif
8845 break;
8846 #endif
8847 #endif
8848 #if defined(CONFIG_EPOLL)
8849 #if defined(TARGET_NR_epoll_create)
8850 case TARGET_NR_epoll_create:
8851 ret = get_errno(epoll_create(arg1));
8852 break;
8853 #endif
8854 #if defined(TARGET_NR_epoll_create1) && defined(CONFIG_EPOLL_CREATE1)
8855 case TARGET_NR_epoll_create1:
8856 ret = get_errno(epoll_create1(arg1));
8857 break;
8858 #endif
8859 #if defined(TARGET_NR_epoll_ctl)
8860 case TARGET_NR_epoll_ctl:
8861 {
8862 struct epoll_event ep;
8863 struct epoll_event *epp = 0;
8864 if (arg4) {
8865 struct target_epoll_event *target_ep;
8866 if (!lock_user_struct(VERIFY_READ, target_ep, arg4, 1)) {
8867 goto efault;
8868 }
8869 ep.events = tswap32(target_ep->events);
8870 /* The epoll_data_t union is just opaque data to the kernel,
8871 * so we transfer all 64 bits across and need not worry what
8872 * actual data type it is.
8873 */
8874 ep.data.u64 = tswap64(target_ep->data.u64);
8875 unlock_user_struct(target_ep, arg4, 0);
8876 epp = &ep;
8877 }
8878 ret = get_errno(epoll_ctl(arg1, arg2, arg3, epp));
8879 break;
8880 }
8881 #endif
8882
8883 #if defined(TARGET_NR_epoll_pwait) && defined(CONFIG_EPOLL_PWAIT)
8884 #define IMPLEMENT_EPOLL_PWAIT
8885 #endif
8886 #if defined(TARGET_NR_epoll_wait) || defined(IMPLEMENT_EPOLL_PWAIT)
8887 #if defined(TARGET_NR_epoll_wait)
8888 case TARGET_NR_epoll_wait:
8889 #endif
8890 #if defined(IMPLEMENT_EPOLL_PWAIT)
8891 case TARGET_NR_epoll_pwait:
8892 #endif
8893 {
8894 struct target_epoll_event *target_ep;
8895 struct epoll_event *ep;
8896 int epfd = arg1;
8897 int maxevents = arg3;
8898 int timeout = arg4;
8899
8900 target_ep = lock_user(VERIFY_WRITE, arg2,
8901 maxevents * sizeof(struct target_epoll_event), 1);
8902 if (!target_ep) {
8903 goto efault;
8904 }
8905
8906 ep = alloca(maxevents * sizeof(struct epoll_event));
8907
8908 switch (num) {
8909 #if defined(IMPLEMENT_EPOLL_PWAIT)
8910 case TARGET_NR_epoll_pwait:
8911 {
8912 target_sigset_t *target_set;
8913 sigset_t _set, *set = &_set;
8914
8915 if (arg5) {
8916 target_set = lock_user(VERIFY_READ, arg5,
8917 sizeof(target_sigset_t), 1);
8918 if (!target_set) {
8919 unlock_user(target_ep, arg2, 0);
8920 goto efault;
8921 }
8922 target_to_host_sigset(set, target_set);
8923 unlock_user(target_set, arg5, 0);
8924 } else {
8925 set = NULL;
8926 }
8927
8928 ret = get_errno(epoll_pwait(epfd, ep, maxevents, timeout, set));
8929 break;
8930 }
8931 #endif
8932 #if defined(TARGET_NR_epoll_wait)
8933 case TARGET_NR_epoll_wait:
8934 ret = get_errno(epoll_wait(epfd, ep, maxevents, timeout));
8935 break;
8936 #endif
8937 default:
8938 ret = -TARGET_ENOSYS;
8939 }
8940 if (!is_error(ret)) {
8941 int i;
8942 for (i = 0; i < ret; i++) {
8943 target_ep[i].events = tswap32(ep[i].events);
8944 target_ep[i].data.u64 = tswap64(ep[i].data.u64);
8945 }
8946 }
8947 unlock_user(target_ep, arg2, ret * sizeof(struct target_epoll_event));
8948 break;
8949 }
8950 #endif
8951 #endif
8952 #ifdef TARGET_NR_prlimit64
8953 case TARGET_NR_prlimit64:
8954 {
8955 /* args: pid, resource number, ptr to new rlimit, ptr to old rlimit */
8956 struct target_rlimit64 *target_rnew, *target_rold;
8957 struct host_rlimit64 rnew, rold, *rnewp = 0;
8958 if (arg3) {
8959 if (!lock_user_struct(VERIFY_READ, target_rnew, arg3, 1)) {
8960 goto efault;
8961 }
8962 rnew.rlim_cur = tswap64(target_rnew->rlim_cur);
8963 rnew.rlim_max = tswap64(target_rnew->rlim_max);
8964 unlock_user_struct(target_rnew, arg3, 0);
8965 rnewp = &rnew;
8966 }
8967
8968 ret = get_errno(sys_prlimit64(arg1, arg2, rnewp, arg4 ? &rold : 0));
8969 if (!is_error(ret) && arg4) {
8970 if (!lock_user_struct(VERIFY_WRITE, target_rold, arg4, 1)) {
8971 goto efault;
8972 }
8973 target_rold->rlim_cur = tswap64(rold.rlim_cur);
8974 target_rold->rlim_max = tswap64(rold.rlim_max);
8975 unlock_user_struct(target_rold, arg4, 1);
8976 }
8977 break;
8978 }
8979 #endif
8980 #ifdef TARGET_NR_gethostname
8981 case TARGET_NR_gethostname:
8982 {
8983 char *name = lock_user(VERIFY_WRITE, arg1, arg2, 0);
8984 if (name) {
8985 ret = get_errno(gethostname(name, arg2));
8986 unlock_user(name, arg1, arg2);
8987 } else {
8988 ret = -TARGET_EFAULT;
8989 }
8990 break;
8991 }
8992 #endif
8993 default:
8994 unimplemented:
8995 gemu_log("qemu: Unsupported syscall: %d\n", num);
8996 #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list)
8997 unimplemented_nowarn:
8998 #endif
8999 ret = -TARGET_ENOSYS;
9000 break;
9001 }
9002 fail:
9003 #ifdef DEBUG
9004 gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret);
9005 #endif
9006 if(do_strace)
9007 print_syscall_ret(num, ret);
9008 return ret;
9009 efault:
9010 ret = -TARGET_EFAULT;
9011 goto fail;
9012 }
QEmu