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linux-user: Don't return uninitialized value for atomic_barrier syscall
[qemu.git] / linux-user / syscall.c
CommitLineData
31e31b8a
FB		 1/*
2 * Linux syscalls
5fafdf24 3 *
31e31b8a
FB		 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
8167ee88 17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
31e31b8a 18 */
d5b3a9b6 19#define _ATFILE_SOURCE
31e31b8a
FB		 20#include <stdlib.h>
21#include <stdio.h>
22#include <stdarg.h>
04369ff2 23#include <string.h>
31e31b8a
FB		 24#include <elf.h>
25#include <endian.h>
26#include <errno.h>
27#include <unistd.h>
28#include <fcntl.h>
7854b056 29#include <time.h>
82e671d9 30#include <limits.h>
c56dc774 31#include <grp.h>
31e31b8a 32#include <sys/types.h>
d08d3bb8
TS		 33#include <sys/ipc.h>
34#include <sys/msg.h>
31e31b8a
FB		 35#include <sys/wait.h>
36#include <sys/time.h>
37#include <sys/stat.h>
38#include <sys/mount.h>
586b0bef
JS		 39#include <sys/file.h>
40#include <sys/fsuid.h>
41#include <sys/personality.h>
39b9aae1 42#include <sys/prctl.h>
31e31b8a
FB		 43#include <sys/resource.h>
44#include <sys/mman.h>
45#include <sys/swap.h>
46#include <signal.h>
47#include <sched.h>
60e99246
AJ		 48#ifdef __ia64__
49int __clone2(int (*fn)(void *), void *child_stack_base,
50 size_t stack_size, int flags, void *arg, ...);
51#endif
31e31b8a 52#include <sys/socket.h>
607175e0 53#include <sys/un.h>
31e31b8a 54#include <sys/uio.h>
9de5e440 55#include <sys/poll.h>
32f36bce 56#include <sys/times.h>
8853f86e 57#include <sys/shm.h>
fa294816 58#include <sys/sem.h>
56c8f68f 59#include <sys/statfs.h>
ebc05488 60#include <utime.h>
a5448a7d 61#include <sys/sysinfo.h>
3b3f24ad 62#include <sys/utsname.h>
72f03900 63//#include <sys/user.h>
8853f86e 64#include <netinet/ip.h>
7854b056 65#include <netinet/tcp.h>
86fcd946 66#include <linux/wireless.h>
920394db 67#include <linux/icmp.h>
5a61cb60 68#include "qemu-common.h"
9788c9ca 69#ifdef TARGET_GPROF
6d946cda
AJ		 70#include <sys/gmon.h>
71#endif
c2882b96
RV		 72#ifdef CONFIG_EVENTFD
73#include <sys/eventfd.h>
74#endif
3b6edd16
PM		 75#ifdef CONFIG_EPOLL
76#include <sys/epoll.h>
77#endif
a790ae38 78#ifdef CONFIG_ATTR
1de7afc9 79#include "qemu/xattr.h"
a790ae38 80#endif
a8fd1aba
PM		 81#ifdef CONFIG_SENDFILE
82#include <sys/sendfile.h>
83#endif
31e31b8a
FB		 84
85#define termios host_termios
86#define winsize host_winsize
87#define termio host_termio
04369ff2
FB		 88#define sgttyb host_sgttyb /* same as target */
89#define tchars host_tchars /* same as target */
90#define ltchars host_ltchars /* same as target */
31e31b8a
FB		 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>
19b84f3c 98#include <linux/kd.h>
8fbd6b52 99#include <linux/mtio.h>
350d1779 100#include <linux/fs.h>
dace20dc 101#if defined(CONFIG_FIEMAP)
285da2b9 102#include <linux/fiemap.h>
dace20dc 103#endif
f7680a55
UH		 104#include <linux/fb.h>
105#include <linux/vt.h>
56e904ec 106#include <linux/dm-ioctl.h>
c07ecc68 107#include <linux/reboot.h>
7ff7b666 108#include <linux/route.h>
f57d4192 109#include <linux/filter.h>
fff8c539 110#include <linux/blkpg.h>
d7e4036e 111#include "linux_loop.h"
da79030f 112#include "cpu-uname.h"
31e31b8a 113
3ef693a0 114#include "qemu.h"
31e31b8a 115
d865bab5
PB		 116#define CLONE_NPTL_FLAGS2 (CLONE_SETTLS | \
117 CLONE_PARENT_SETTID | CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID)
30813cea 118
72f03900 119//#define DEBUG
31e31b8a 120
1a9353d2 121//#include <linux/msdos_fs.h>
6556a833
AJ		 122#define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct linux_dirent [2])
123#define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct linux_dirent [2])
1a9353d2 124
70a194b9 125
70a194b9
FB		 126#undef _syscall0
127#undef _syscall1
128#undef _syscall2
129#undef _syscall3
130#undef _syscall4
131#undef _syscall5
83fcb515 132#undef _syscall6
70a194b9 133
83fcb515 134#define _syscall0(type,name) \
8fcd3692 135static type name (void) \
83fcb515
FB		 136{ \
137 return syscall(__NR_##name); \
138}
70a194b9 139
83fcb515 140#define _syscall1(type,name,type1,arg1) \
8fcd3692 141static type name (type1 arg1) \
83fcb515
FB		 142{ \
143 return syscall(__NR_##name, arg1); \
70a194b9
FB		 144}
145
83fcb515 146#define _syscall2(type,name,type1,arg1,type2,arg2) \
8fcd3692 147static type name (type1 arg1,type2 arg2) \
83fcb515
FB		 148{ \
149 return syscall(__NR_##name, arg1, arg2); \
70a194b9
FB		 150}
151
83fcb515 152#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
8fcd3692 153static type name (type1 arg1,type2 arg2,type3 arg3) \
83fcb515
FB		 154{ \
155 return syscall(__NR_##name, arg1, arg2, arg3); \
70a194b9
FB		 156}
157
83fcb515 158#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
8fcd3692 159static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \
83fcb515
FB		 160{ \
161 return syscall(__NR_##name, arg1, arg2, arg3, arg4); \
70a194b9
FB		 162}
163
83fcb515
FB		 164#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
165 type5,arg5) \
8fcd3692 166static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
83fcb515
FB		 167{ \
168 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
70a194b9
FB		 169}
170
83fcb515
FB		 171
172#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
173 type5,arg5,type6,arg6) \
8fcd3692
BS		 174static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, \
175 type6 arg6) \
83fcb515
FB		 176{ \
177 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
70a194b9 178}
83fcb515 179
70a194b9 180
31e31b8a 181#define __NR_sys_uname __NR_uname
72f03900 182#define __NR_sys_getcwd1 __NR_getcwd
72f03900 183#define __NR_sys_getdents __NR_getdents
dab2ed99 184#define __NR_sys_getdents64 __NR_getdents64
c6cda17a 185#define __NR_sys_getpriority __NR_getpriority
66fb9763 186#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
7494b0f9 187#define __NR_sys_syslog __NR_syslog
71455574 188#define __NR_sys_tgkill __NR_tgkill
4cae1d16 189#define __NR_sys_tkill __NR_tkill
bd0c5661 190#define __NR_sys_futex __NR_futex
39b59763
AJ		 191#define __NR_sys_inotify_init __NR_inotify_init
192#define __NR_sys_inotify_add_watch __NR_inotify_add_watch
193#define __NR_sys_inotify_rm_watch __NR_inotify_rm_watch
31e31b8a 194
42a39fbe
AG		 195#if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__) || \
196 defined(__s390x__)
9af9eaaa
FB		 197#define __NR__llseek __NR_lseek
198#endif
199
72f03900 200#ifdef __NR_gettid
31e31b8a 201_syscall0(int, gettid)
72f03900 202#else
0da46a6e
TS		 203/* This is a replacement for the host gettid() and must return a host
204 errno. */
72f03900
FB		 205static int gettid(void) {
206 return -ENOSYS;
207}
208#endif
3307e236 209#ifdef __NR_getdents
3b3f24ad 210_syscall3(int, sys_getdents, uint, fd, struct linux_dirent *, dirp, uint, count);
3307e236
PM		 211#endif
212#if !defined(__NR_getdents) || \
213 (defined(TARGET_NR_getdents64) && defined(__NR_getdents64))
3b3f24ad
AJ		 214_syscall3(int, sys_getdents64, uint, fd, struct linux_dirent64 *, dirp, uint, count);
215#endif
d35b261c 216#if defined(TARGET_NR__llseek) && defined(__NR_llseek)
3b3f24ad
AJ		 217_syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo,
218 loff_t *, res, uint, wh);
219#endif
220_syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
221_syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
222#if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
223_syscall3(int,sys_tgkill,int,tgid,int,pid,int,sig)
224#endif
225#if defined(TARGET_NR_tkill) && defined(__NR_tkill)
226_syscall2(int,sys_tkill,int,tid,int,sig)
227#endif
228#ifdef __NR_exit_group
229_syscall1(int,exit_group,int,error_code)
230#endif
231#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
232_syscall1(int,set_tid_address,int *,tidptr)
233#endif
3b3f24ad
AJ		 234#if defined(TARGET_NR_futex) && defined(__NR_futex)
235_syscall6(int,sys_futex,int *,uaddr,int,op,int,val,
236 const struct timespec *,timeout,int *,uaddr2,int,val3)
237#endif
737de1d1
MF		 238#define __NR_sys_sched_getaffinity __NR_sched_getaffinity
239_syscall3(int, sys_sched_getaffinity, pid_t, pid, unsigned int, len,
240 unsigned long *, user_mask_ptr);
241#define __NR_sys_sched_setaffinity __NR_sched_setaffinity
242_syscall3(int, sys_sched_setaffinity, pid_t, pid, unsigned int, len,
243 unsigned long *, user_mask_ptr);
0f6b4d21
AG		 244_syscall4(int, reboot, int, magic1, int, magic2, unsigned int, cmd,
245 void *, arg);
3b3f24ad
AJ		 246
247static bitmask_transtbl fcntl_flags_tbl[] = {
248 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, },
249 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, },
250 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, },
251 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, },
252 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, },
253 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, },
254 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, },
255 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, },
afc8763f 256 { TARGET_O_SYNC, TARGET_O_DSYNC, O_SYNC, O_DSYNC, },
3b3f24ad
AJ		 257 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, },
258 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, },
259 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
260 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, },
3b3f24ad
AJ		 261#if defined(O_DIRECT)
262 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, },
afc8763f
RH		 263#endif
264#if defined(O_NOATIME)
265 { TARGET_O_NOATIME, TARGET_O_NOATIME, O_NOATIME, O_NOATIME },
266#endif
267#if defined(O_CLOEXEC)
268 { TARGET_O_CLOEXEC, TARGET_O_CLOEXEC, O_CLOEXEC, O_CLOEXEC },
269#endif
270#if defined(O_PATH)
271 { TARGET_O_PATH, TARGET_O_PATH, O_PATH, O_PATH },
272#endif
273 /* Don't terminate the list prematurely on 64-bit host+guest. */
274#if TARGET_O_LARGEFILE != 0 || O_LARGEFILE != 0
275 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
3b3f24ad
AJ		 276#endif
277 { 0, 0, 0, 0 }
278};
279
280#define COPY_UTSNAME_FIELD(dest, src) \
281 do { \
282 /* __NEW_UTS_LEN doesn't include terminating null */ \
283 (void) strncpy((dest), (src), __NEW_UTS_LEN); \
284 (dest)[__NEW_UTS_LEN] = '\0'; \
285 } while (0)
286
287static int sys_uname(struct new_utsname *buf)
288{
289 struct utsname uts_buf;
290
291 if (uname(&uts_buf) < 0)
292 return (-1);
293
294 /*
295 * Just in case these have some differences, we
296 * translate utsname to new_utsname (which is the
297 * struct linux kernel uses).
298 */
299
67bd9ede 300 memset(buf, 0, sizeof(*buf));
3b3f24ad
AJ		 301 COPY_UTSNAME_FIELD(buf->sysname, uts_buf.sysname);
302 COPY_UTSNAME_FIELD(buf->nodename, uts_buf.nodename);
303 COPY_UTSNAME_FIELD(buf->release, uts_buf.release);
304 COPY_UTSNAME_FIELD(buf->version, uts_buf.version);
305 COPY_UTSNAME_FIELD(buf->machine, uts_buf.machine);
306#ifdef _GNU_SOURCE
307 COPY_UTSNAME_FIELD(buf->domainname, uts_buf.domainname);
308#endif
309 return (0);
310
311#undef COPY_UTSNAME_FIELD
312}
313
314static int sys_getcwd1(char *buf, size_t size)
315{
316 if (getcwd(buf, size) == NULL) {
317 /* getcwd() sets errno */
318 return (-1);
319 }
aaf4ad39 320 return strlen(buf)+1;
3b3f24ad
AJ		 321}
322
3b3f24ad 323#ifdef TARGET_NR_openat
f4c69010 324static int sys_openat(int dirfd, const char *pathname, int flags, mode_t mode)
3b3f24ad
AJ		 325{
326 /*
327 * open(2) has extra parameter 'mode' when called with
328 * flag O_CREAT.
329 */
330 if ((flags & O_CREAT) != 0) {
3b3f24ad
AJ		 331 return (openat(dirfd, pathname, flags, mode));
332 }
333 return (openat(dirfd, pathname, flags));
334}
335#endif
ebc996f3 336
1acae9f2 337#ifdef TARGET_NR_utimensat
ebc996f3
RV		 338#ifdef CONFIG_UTIMENSAT
339static int sys_utimensat(int dirfd, const char *pathname,
340 const struct timespec times[2], int flags)
341{
342 if (pathname == NULL)
343 return futimens(dirfd, times);
344 else
345 return utimensat(dirfd, pathname, times, flags);
346}
1acae9f2
PM		 347#elif defined(__NR_utimensat)
348#define __NR_sys_utimensat __NR_utimensat
9007f0ef
TS		 349_syscall4(int,sys_utimensat,int,dirfd,const char *,pathname,
350 const struct timespec *,tsp,int,flags)
1acae9f2
PM		 351#else
352static int sys_utimensat(int dirfd, const char *pathname,
353 const struct timespec times[2], int flags)
354{
355 errno = ENOSYS;
356 return -1;
357}
9007f0ef 358#endif
1acae9f2 359#endif /* TARGET_NR_utimensat */
3b3f24ad
AJ		 360
361#ifdef CONFIG_INOTIFY
8690e420 362#include <sys/inotify.h>
3b3f24ad 363
39b59763 364#if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
3b3f24ad
AJ		 365static int sys_inotify_init(void)
366{
367 return (inotify_init());
368}
39b59763
AJ		 369#endif
370#if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
3b3f24ad
AJ		 371static int sys_inotify_add_watch(int fd,const char *pathname, int32_t mask)
372{
373 return (inotify_add_watch(fd, pathname, mask));
374}
39b59763
AJ		 375#endif
376#if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
3b3f24ad
AJ		 377static int sys_inotify_rm_watch(int fd, int32_t wd)
378{
8690e420 379 return (inotify_rm_watch(fd, wd));
3b3f24ad 380}
bd0c5661 381#endif
c05c7a73
RV		 382#ifdef CONFIG_INOTIFY1
383#if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
384static int sys_inotify_init1(int flags)
385{
386 return (inotify_init1(flags));
387}
388#endif
389#endif
3b3f24ad
AJ		 390#else
391/* Userspace can usually survive runtime without inotify */
392#undef TARGET_NR_inotify_init
c05c7a73 393#undef TARGET_NR_inotify_init1
3b3f24ad
AJ		 394#undef TARGET_NR_inotify_add_watch
395#undef TARGET_NR_inotify_rm_watch
396#endif /* CONFIG_INOTIFY */
397
d8035d4c
MF		 398#if defined(TARGET_NR_ppoll)
399#ifndef __NR_ppoll
400# define __NR_ppoll -1
401#endif
402#define __NR_sys_ppoll __NR_ppoll
403_syscall5(int, sys_ppoll, struct pollfd *, fds, nfds_t, nfds,
404 struct timespec *, timeout, const __sigset_t *, sigmask,
405 size_t, sigsetsize)
406#endif
66fb9763 407
055e0906
MF		 408#if defined(TARGET_NR_pselect6)
409#ifndef __NR_pselect6
410# define __NR_pselect6 -1
411#endif
412#define __NR_sys_pselect6 __NR_pselect6
413_syscall6(int, sys_pselect6, int, nfds, fd_set *, readfds, fd_set *, writefds,
414 fd_set *, exceptfds, struct timespec *, timeout, void *, sig);
415#endif
416
163a05a8
PM		 417#if defined(TARGET_NR_prlimit64)
418#ifndef __NR_prlimit64
419# define __NR_prlimit64 -1
420#endif
421#define __NR_sys_prlimit64 __NR_prlimit64
422/* The glibc rlimit structure may not be that used by the underlying syscall */
423struct host_rlimit64 {
424 uint64_t rlim_cur;
425 uint64_t rlim_max;
426};
427_syscall4(int, sys_prlimit64, pid_t, pid, int, resource,
428 const struct host_rlimit64 *, new_limit,
429 struct host_rlimit64 *, old_limit)
430#endif
431
f4f1e10a
ECL		 432
433#if defined(TARGET_NR_timer_create)
434/* Maxiumum of 32 active POSIX timers allowed at any one time. */
435static timer_t g_posix_timers[32] = { 0, } ;
436
437static inline int next_free_host_timer(void)
438{
439 int k ;
440 /* FIXME: Does finding the next free slot require a lock? */
441 for (k = 0; k < ARRAY_SIZE(g_posix_timers); k++) {
442 if (g_posix_timers[k] == 0) {
443 g_posix_timers[k] = (timer_t) 1;
444 return k;
445 }
446 }
447 return -1;
448}
449#endif
450
48e515d4 451/* ARM EABI and MIPS expect 64bit types aligned even on pairs or registers */
4a1def4e 452#ifdef TARGET_ARM
48e515d4
RV		 453static inline int regpairs_aligned(void *cpu_env) {
454 return ((((CPUARMState *)cpu_env)->eabi) == 1) ;
455}
456#elif defined(TARGET_MIPS)
457static inline int regpairs_aligned(void *cpu_env) { return 1; }
4a1def4e
AG		 458#elif defined(TARGET_PPC) && !defined(TARGET_PPC64)
459/* SysV AVI for PPC32 expects 64bit parameters to be passed on odd/even pairs
460 * of registers which translates to the same as ARM/MIPS, because we start with
461 * r3 as arg1 */
462static inline int regpairs_aligned(void *cpu_env) { return 1; }
48e515d4
RV		 463#else
464static inline int regpairs_aligned(void *cpu_env) { return 0; }
465#endif
466
b92c47c1
TS		 467#define ERRNO_TABLE_SIZE 1200
468
469/* target_to_host_errno_table[] is initialized from
470 * host_to_target_errno_table[] in syscall_init(). */
471static uint16_t target_to_host_errno_table[ERRNO_TABLE_SIZE] = {
472};
473
637947f1 474/*
fe8f096b 475 * This list is the union of errno values overridden in asm-<arch>/errno.h
637947f1
TS		 476 * minus the errnos that are not actually generic to all archs.
477 */
b92c47c1 478static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = {
637947f1
TS		 479 [EIDRM] = TARGET_EIDRM,
480 [ECHRNG] = TARGET_ECHRNG,
481 [EL2NSYNC] = TARGET_EL2NSYNC,
482 [EL3HLT] = TARGET_EL3HLT,
483 [EL3RST] = TARGET_EL3RST,
484 [ELNRNG] = TARGET_ELNRNG,
485 [EUNATCH] = TARGET_EUNATCH,
486 [ENOCSI] = TARGET_ENOCSI,
487 [EL2HLT] = TARGET_EL2HLT,
488 [EDEADLK] = TARGET_EDEADLK,
489 [ENOLCK] = TARGET_ENOLCK,
490 [EBADE] = TARGET_EBADE,
491 [EBADR] = TARGET_EBADR,
492 [EXFULL] = TARGET_EXFULL,
493 [ENOANO] = TARGET_ENOANO,
494 [EBADRQC] = TARGET_EBADRQC,
495 [EBADSLT] = TARGET_EBADSLT,
496 [EBFONT] = TARGET_EBFONT,
497 [ENOSTR] = TARGET_ENOSTR,
498 [ENODATA] = TARGET_ENODATA,
499 [ETIME] = TARGET_ETIME,
500 [ENOSR] = TARGET_ENOSR,
501 [ENONET] = TARGET_ENONET,
502 [ENOPKG] = TARGET_ENOPKG,
503 [EREMOTE] = TARGET_EREMOTE,
504 [ENOLINK] = TARGET_ENOLINK,
505 [EADV] = TARGET_EADV,
506 [ESRMNT] = TARGET_ESRMNT,
507 [ECOMM] = TARGET_ECOMM,
508 [EPROTO] = TARGET_EPROTO,
509 [EDOTDOT] = TARGET_EDOTDOT,
510 [EMULTIHOP] = TARGET_EMULTIHOP,
511 [EBADMSG] = TARGET_EBADMSG,
512 [ENAMETOOLONG] = TARGET_ENAMETOOLONG,
513 [EOVERFLOW] = TARGET_EOVERFLOW,
514 [ENOTUNIQ] = TARGET_ENOTUNIQ,
515 [EBADFD] = TARGET_EBADFD,
516 [EREMCHG] = TARGET_EREMCHG,
517 [ELIBACC] = TARGET_ELIBACC,
518 [ELIBBAD] = TARGET_ELIBBAD,
519 [ELIBSCN] = TARGET_ELIBSCN,
520 [ELIBMAX] = TARGET_ELIBMAX,
521 [ELIBEXEC] = TARGET_ELIBEXEC,
522 [EILSEQ] = TARGET_EILSEQ,
523 [ENOSYS] = TARGET_ENOSYS,
524 [ELOOP] = TARGET_ELOOP,
525 [ERESTART] = TARGET_ERESTART,
526 [ESTRPIPE] = TARGET_ESTRPIPE,
527 [ENOTEMPTY] = TARGET_ENOTEMPTY,
528 [EUSERS] = TARGET_EUSERS,
529 [ENOTSOCK] = TARGET_ENOTSOCK,
530 [EDESTADDRREQ] = TARGET_EDESTADDRREQ,
531 [EMSGSIZE] = TARGET_EMSGSIZE,
532 [EPROTOTYPE] = TARGET_EPROTOTYPE,
533 [ENOPROTOOPT] = TARGET_ENOPROTOOPT,
534 [EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT,
535 [ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT,
536 [EOPNOTSUPP] = TARGET_EOPNOTSUPP,
537 [EPFNOSUPPORT] = TARGET_EPFNOSUPPORT,
538 [EAFNOSUPPORT] = TARGET_EAFNOSUPPORT,
539 [EADDRINUSE] = TARGET_EADDRINUSE,
540 [EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL,
541 [ENETDOWN] = TARGET_ENETDOWN,
542 [ENETUNREACH] = TARGET_ENETUNREACH,
543 [ENETRESET] = TARGET_ENETRESET,
544 [ECONNABORTED] = TARGET_ECONNABORTED,
545 [ECONNRESET] = TARGET_ECONNRESET,
546 [ENOBUFS] = TARGET_ENOBUFS,
547 [EISCONN] = TARGET_EISCONN,
548 [ENOTCONN] = TARGET_ENOTCONN,
549 [EUCLEAN] = TARGET_EUCLEAN,
550 [ENOTNAM] = TARGET_ENOTNAM,
551 [ENAVAIL] = TARGET_ENAVAIL,
552 [EISNAM] = TARGET_EISNAM,
553 [EREMOTEIO] = TARGET_EREMOTEIO,
554 [ESHUTDOWN] = TARGET_ESHUTDOWN,
555 [ETOOMANYREFS] = TARGET_ETOOMANYREFS,
556 [ETIMEDOUT] = TARGET_ETIMEDOUT,
557 [ECONNREFUSED] = TARGET_ECONNREFUSED,
558 [EHOSTDOWN] = TARGET_EHOSTDOWN,
559 [EHOSTUNREACH] = TARGET_EHOSTUNREACH,
560 [EALREADY] = TARGET_EALREADY,
561 [EINPROGRESS] = TARGET_EINPROGRESS,
562 [ESTALE] = TARGET_ESTALE,
563 [ECANCELED] = TARGET_ECANCELED,
564 [ENOMEDIUM] = TARGET_ENOMEDIUM,
565 [EMEDIUMTYPE] = TARGET_EMEDIUMTYPE,
b7fe5db7 566#ifdef ENOKEY
637947f1 567 [ENOKEY] = TARGET_ENOKEY,
b7fe5db7
TS		 568#endif
569#ifdef EKEYEXPIRED
637947f1 570 [EKEYEXPIRED] = TARGET_EKEYEXPIRED,
b7fe5db7
TS		 571#endif
572#ifdef EKEYREVOKED
637947f1 573 [EKEYREVOKED] = TARGET_EKEYREVOKED,
b7fe5db7
TS		 574#endif
575#ifdef EKEYREJECTED
637947f1 576 [EKEYREJECTED] = TARGET_EKEYREJECTED,
b7fe5db7
TS		 577#endif
578#ifdef EOWNERDEAD
637947f1 579 [EOWNERDEAD] = TARGET_EOWNERDEAD,
b7fe5db7
TS		 580#endif
581#ifdef ENOTRECOVERABLE
637947f1 582 [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE,
b7fe5db7 583#endif
b92c47c1 584};
637947f1
TS		 585
586static inline int host_to_target_errno(int err)
587{
588 if(host_to_target_errno_table[err])
589 return host_to_target_errno_table[err];
590 return err;
591}
592
b92c47c1
TS		 593static inline int target_to_host_errno(int err)
594{
595 if (target_to_host_errno_table[err])
596 return target_to_host_errno_table[err];
597 return err;
598}
599
992f48a0 600static inline abi_long get_errno(abi_long ret)
31e31b8a
FB		 601{
602 if (ret == -1)
637947f1 603 return -host_to_target_errno(errno);
31e31b8a
FB		 604 else
605 return ret;
606}
607
992f48a0 608static inline int is_error(abi_long ret)
31e31b8a 609{
992f48a0 610 return (abi_ulong)ret >= (abi_ulong)(-4096);
31e31b8a
FB		 611}
612
b92c47c1
TS		 613char *target_strerror(int err)
614{
962b289e
AG		 615 if ((err >= ERRNO_TABLE_SIZE) || (err < 0)) {
616 return NULL;
617 }
b92c47c1
TS		 618 return strerror(target_to_host_errno(err));
619}
620
992f48a0
BS		 621static abi_ulong target_brk;
622static abi_ulong target_original_brk;
4d1de87c 623static abi_ulong brk_page;
31e31b8a 624
992f48a0 625void target_set_brk(abi_ulong new_brk)
31e31b8a 626{
4c1de73d 627 target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk);
4d1de87c 628 brk_page = HOST_PAGE_ALIGN(target_brk);
31e31b8a
FB		 629}
630
4d1de87c
CV		 631//#define DEBUGF_BRK(message, args...) do { fprintf(stderr, (message), ## args); } while (0)
632#define DEBUGF_BRK(message, args...)
633
0da46a6e 634/* do_brk() must return target values and target errnos. */
992f48a0 635abi_long do_brk(abi_ulong new_brk)
31e31b8a 636{
992f48a0 637 abi_long mapped_addr;
31e31b8a
FB		 638 int new_alloc_size;
639
3a0c6c4a 640 DEBUGF_BRK("do_brk(" TARGET_ABI_FMT_lx ") -> ", new_brk);
4d1de87c
CV		 641
642 if (!new_brk) {
3a0c6c4a 643 DEBUGF_BRK(TARGET_ABI_FMT_lx " (!new_brk)\n", target_brk);
53a5960a 644 return target_brk;
4d1de87c
CV		 645 }
646 if (new_brk < target_original_brk) {
3a0c6c4a
PB		 647 DEBUGF_BRK(TARGET_ABI_FMT_lx " (new_brk < target_original_brk)\n",
648 target_brk);
7ab240ad 649 return target_brk;
4d1de87c 650 }
3b46e624 651
4d1de87c
CV		 652 /* If the new brk is less than the highest page reserved to the
653 * target heap allocation, set it and we're almost done... */
654 if (new_brk <= brk_page) {
655 /* Heap contents are initialized to zero, as for anonymous
656 * mapped pages. */
657 if (new_brk > target_brk) {
658 memset(g2h(target_brk), 0, new_brk - target_brk);
659 }
31e31b8a 660 target_brk = new_brk;
3a0c6c4a 661 DEBUGF_BRK(TARGET_ABI_FMT_lx " (new_brk <= brk_page)\n", target_brk);
53a5960a 662 return target_brk;
31e31b8a
FB		 663 }
664
00faf08c
PM		 665 /* We need to allocate more memory after the brk... Note that
666 * we don't use MAP_FIXED because that will map over the top of
667 * any existing mapping (like the one with the host libc or qemu
668 * itself); instead we treat "mapped but at wrong address" as
669 * a failure and unmap again.
670 */
4d1de87c 671 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page);
5fafdf24 672 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
54936004 673 PROT_READ|PROT_WRITE,
00faf08c
PM		 674 MAP_ANON|MAP_PRIVATE, 0, 0));
675
676 if (mapped_addr == brk_page) {
70afc343
CV		 677 /* Heap contents are initialized to zero, as for anonymous
678 * mapped pages. Technically the new pages are already
679 * initialized to zero since they *are* anonymous mapped
680 * pages, however we have to take care with the contents that
681 * come from the remaining part of the previous page: it may
682 * contains garbage data due to a previous heap usage (grown
683 * then shrunken). */
684 memset(g2h(target_brk), 0, brk_page - target_brk);
685
00faf08c 686 target_brk = new_brk;
4d1de87c 687 brk_page = HOST_PAGE_ALIGN(target_brk);
3a0c6c4a
PB		 688 DEBUGF_BRK(TARGET_ABI_FMT_lx " (mapped_addr == brk_page)\n",
689 target_brk);
00faf08c
PM		 690 return target_brk;
691 } else if (mapped_addr != -1) {
692 /* Mapped but at wrong address, meaning there wasn't actually
693 * enough space for this brk.
694 */
695 target_munmap(mapped_addr, new_alloc_size);
696 mapped_addr = -1;
3a0c6c4a 697 DEBUGF_BRK(TARGET_ABI_FMT_lx " (mapped_addr != -1)\n", target_brk);
4d1de87c
CV		 698 }
699 else {
3a0c6c4a 700 DEBUGF_BRK(TARGET_ABI_FMT_lx " (otherwise)\n", target_brk);
00faf08c 701 }
7ab240ad 702
7dd46c02
RH		 703#if defined(TARGET_ALPHA)
704 /* We (partially) emulate OSF/1 on Alpha, which requires we
705 return a proper errno, not an unchanged brk value. */
00faf08c 706 return -TARGET_ENOMEM;
7dd46c02 707#endif
00faf08c 708 /* For everything else, return the previous break. */
7ab240ad 709 return target_brk;
31e31b8a
FB		 710}
711
26edcf41
TS		 712static inline abi_long copy_from_user_fdset(fd_set *fds,
713 abi_ulong target_fds_addr,
714 int n)
31e31b8a 715{
26edcf41
TS		 716 int i, nw, j, k;
717 abi_ulong b, *target_fds;
718
719 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
720 if (!(target_fds = lock_user(VERIFY_READ,
721 target_fds_addr,
722 sizeof(abi_ulong) * nw,
723 1)))
724 return -TARGET_EFAULT;
725
726 FD_ZERO(fds);
727 k = 0;
728 for (i = 0; i < nw; i++) {
729 /* grab the abi_ulong */
730 __get_user(b, &target_fds[i]);
731 for (j = 0; j < TARGET_ABI_BITS; j++) {
732 /* check the bit inside the abi_ulong */
733 if ((b >> j) & 1)
734 FD_SET(k, fds);
735 k++;
31e31b8a 736 }
31e31b8a 737 }
26edcf41
TS		 738
739 unlock_user(target_fds, target_fds_addr, 0);
740
741 return 0;
31e31b8a
FB		 742}
743
055e0906
MF		 744static inline abi_ulong copy_from_user_fdset_ptr(fd_set *fds, fd_set **fds_ptr,
745 abi_ulong target_fds_addr,
746 int n)
747{
748 if (target_fds_addr) {
749 if (copy_from_user_fdset(fds, target_fds_addr, n))
750 return -TARGET_EFAULT;
751 *fds_ptr = fds;
752 } else {
753 *fds_ptr = NULL;
754 }
755 return 0;
756}
757
26edcf41
TS		 758static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr,
759 const fd_set *fds,
760 int n)
31e31b8a 761{
31e31b8a 762 int i, nw, j, k;
992f48a0 763 abi_long v;
26edcf41 764 abi_ulong *target_fds;
31e31b8a 765
26edcf41
TS		 766 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
767 if (!(target_fds = lock_user(VERIFY_WRITE,
768 target_fds_addr,
769 sizeof(abi_ulong) * nw,
770 0)))
771 return -TARGET_EFAULT;
772
773 k = 0;
774 for (i = 0; i < nw; i++) {
775 v = 0;
776 for (j = 0; j < TARGET_ABI_BITS; j++) {
9ab709be 777 v |= ((abi_ulong)(FD_ISSET(k, fds) != 0) << j);
26edcf41 778 k++;
31e31b8a 779 }
26edcf41 780 __put_user(v, &target_fds[i]);
31e31b8a 781 }
26edcf41
TS		 782
783 unlock_user(target_fds, target_fds_addr, sizeof(abi_ulong) * nw);
784
785 return 0;
31e31b8a
FB		 786}
787
c596ed17
FB		 788#if defined(__alpha__)
789#define HOST_HZ 1024
790#else
791#define HOST_HZ 100
792#endif
793
992f48a0 794static inline abi_long host_to_target_clock_t(long ticks)
c596ed17
FB		 795{
796#if HOST_HZ == TARGET_HZ
797 return ticks;
798#else
799 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
800#endif
801}
802
579a97f7
FB		 803static inline abi_long host_to_target_rusage(abi_ulong target_addr,
804 const struct rusage *rusage)
b409186b 805{
53a5960a
PB		 806 struct target_rusage *target_rusage;
807
579a97f7
FB		 808 if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0))
809 return -TARGET_EFAULT;
cbb21eed
MB		 810 target_rusage->ru_utime.tv_sec = tswapal(rusage->ru_utime.tv_sec);
811 target_rusage->ru_utime.tv_usec = tswapal(rusage->ru_utime.tv_usec);
812 target_rusage->ru_stime.tv_sec = tswapal(rusage->ru_stime.tv_sec);
813 target_rusage->ru_stime.tv_usec = tswapal(rusage->ru_stime.tv_usec);
814 target_rusage->ru_maxrss = tswapal(rusage->ru_maxrss);
815 target_rusage->ru_ixrss = tswapal(rusage->ru_ixrss);
816 target_rusage->ru_idrss = tswapal(rusage->ru_idrss);
817 target_rusage->ru_isrss = tswapal(rusage->ru_isrss);
818 target_rusage->ru_minflt = tswapal(rusage->ru_minflt);
819 target_rusage->ru_majflt = tswapal(rusage->ru_majflt);
820 target_rusage->ru_nswap = tswapal(rusage->ru_nswap);
821 target_rusage->ru_inblock = tswapal(rusage->ru_inblock);
822 target_rusage->ru_oublock = tswapal(rusage->ru_oublock);
823 target_rusage->ru_msgsnd = tswapal(rusage->ru_msgsnd);
824 target_rusage->ru_msgrcv = tswapal(rusage->ru_msgrcv);
825 target_rusage->ru_nsignals = tswapal(rusage->ru_nsignals);
826 target_rusage->ru_nvcsw = tswapal(rusage->ru_nvcsw);
827 target_rusage->ru_nivcsw = tswapal(rusage->ru_nivcsw);
53a5960a 828 unlock_user_struct(target_rusage, target_addr, 1);
579a97f7
FB		 829
830 return 0;
b409186b
FB		 831}
832
cbb21eed 833static inline rlim_t target_to_host_rlim(abi_ulong target_rlim)
81bbe906 834{
cbb21eed 835 abi_ulong target_rlim_swap;
95b33b2f
WT		 836 rlim_t result;
837
cbb21eed
MB		 838 target_rlim_swap = tswapal(target_rlim);
839 if (target_rlim_swap == TARGET_RLIM_INFINITY)
840 return RLIM_INFINITY;
841
842 result = target_rlim_swap;
843 if (target_rlim_swap != (rlim_t)result)
844 return RLIM_INFINITY;
95b33b2f
WT		 845
846 return result;
81bbe906
TY		 847}
848
cbb21eed 849static inline abi_ulong host_to_target_rlim(rlim_t rlim)
81bbe906 850{
cbb21eed
MB		 851 abi_ulong target_rlim_swap;
852 abi_ulong result;
95b33b2f 853
cbb21eed 854 if (rlim == RLIM_INFINITY || rlim != (abi_long)rlim)
95b33b2f 855 target_rlim_swap = TARGET_RLIM_INFINITY;
81bbe906 856 else
95b33b2f 857 target_rlim_swap = rlim;
cbb21eed 858 result = tswapal(target_rlim_swap);
95b33b2f
WT		 859
860 return result;
81bbe906
TY		 861}
862
e22b7015
WT		 863static inline int target_to_host_resource(int code)
864{
865 switch (code) {
866 case TARGET_RLIMIT_AS:
867 return RLIMIT_AS;
868 case TARGET_RLIMIT_CORE:
869 return RLIMIT_CORE;
870 case TARGET_RLIMIT_CPU:
871 return RLIMIT_CPU;
872 case TARGET_RLIMIT_DATA:
873 return RLIMIT_DATA;
874 case TARGET_RLIMIT_FSIZE:
875 return RLIMIT_FSIZE;
876 case TARGET_RLIMIT_LOCKS:
877 return RLIMIT_LOCKS;
878 case TARGET_RLIMIT_MEMLOCK:
879 return RLIMIT_MEMLOCK;
880 case TARGET_RLIMIT_MSGQUEUE:
881 return RLIMIT_MSGQUEUE;
882 case TARGET_RLIMIT_NICE:
883 return RLIMIT_NICE;
884 case TARGET_RLIMIT_NOFILE:
885 return RLIMIT_NOFILE;
886 case TARGET_RLIMIT_NPROC:
887 return RLIMIT_NPROC;
888 case TARGET_RLIMIT_RSS:
889 return RLIMIT_RSS;
890 case TARGET_RLIMIT_RTPRIO:
891 return RLIMIT_RTPRIO;
892 case TARGET_RLIMIT_SIGPENDING:
893 return RLIMIT_SIGPENDING;
894 case TARGET_RLIMIT_STACK:
895 return RLIMIT_STACK;
896 default:
897 return code;
898 }
899}
900
788f5ec4
TS		 901static inline abi_long copy_from_user_timeval(struct timeval *tv,
902 abi_ulong target_tv_addr)
31e31b8a 903{
53a5960a
PB		 904 struct target_timeval *target_tv;
905
788f5ec4 906 if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1))
579a97f7 907 return -TARGET_EFAULT;
788f5ec4
TS		 908
909 __get_user(tv->tv_sec, &target_tv->tv_sec);
910 __get_user(tv->tv_usec, &target_tv->tv_usec);
911
912 unlock_user_struct(target_tv, target_tv_addr, 0);
579a97f7
FB		 913
914 return 0;
31e31b8a
FB		 915}
916
788f5ec4
TS		 917static inline abi_long copy_to_user_timeval(abi_ulong target_tv_addr,
918 const struct timeval *tv)
31e31b8a 919{
53a5960a
PB		 920 struct target_timeval *target_tv;
921
788f5ec4 922 if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0))
579a97f7 923 return -TARGET_EFAULT;
788f5ec4
TS		 924
925 __put_user(tv->tv_sec, &target_tv->tv_sec);
926 __put_user(tv->tv_usec, &target_tv->tv_usec);
927
928 unlock_user_struct(target_tv, target_tv_addr, 1);
579a97f7
FB		 929
930 return 0;
31e31b8a
FB		 931}
932
8ec9cf89
NF		 933#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
934#include <mqueue.h>
935
24e1003a
AJ		 936static inline abi_long copy_from_user_mq_attr(struct mq_attr *attr,
937 abi_ulong target_mq_attr_addr)
938{
939 struct target_mq_attr *target_mq_attr;
940
941 if (!lock_user_struct(VERIFY_READ, target_mq_attr,
942 target_mq_attr_addr, 1))
943 return -TARGET_EFAULT;
944
945 __get_user(attr->mq_flags, &target_mq_attr->mq_flags);
946 __get_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
947 __get_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
948 __get_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
949
950 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 0);
951
952 return 0;
953}
954
955static inline abi_long copy_to_user_mq_attr(abi_ulong target_mq_attr_addr,
956 const struct mq_attr *attr)
957{
958 struct target_mq_attr *target_mq_attr;
959
960 if (!lock_user_struct(VERIFY_WRITE, target_mq_attr,
961 target_mq_attr_addr, 0))
962 return -TARGET_EFAULT;
963
964 __put_user(attr->mq_flags, &target_mq_attr->mq_flags);
965 __put_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
966 __put_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
967 __put_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
968
969 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 1);
970
971 return 0;
972}
8ec9cf89 973#endif
31e31b8a 974
055e0906 975#if defined(TARGET_NR_select) || defined(TARGET_NR__newselect)
0da46a6e 976/* do_select() must return target values and target errnos. */
992f48a0 977static abi_long do_select(int n,
26edcf41
TS		 978 abi_ulong rfd_addr, abi_ulong wfd_addr,
979 abi_ulong efd_addr, abi_ulong target_tv_addr)
31e31b8a
FB		 980{
981 fd_set rfds, wfds, efds;
982 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
983 struct timeval tv, *tv_ptr;
992f48a0 984 abi_long ret;
31e31b8a 985
055e0906
MF		 986 ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n);
987 if (ret) {
988 return ret;
53a5960a 989 }
055e0906
MF		 990 ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n);
991 if (ret) {
992 return ret;
53a5960a 993 }
055e0906
MF		 994 ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n);
995 if (ret) {
996 return ret;
53a5960a 997 }
3b46e624 998
26edcf41 999 if (target_tv_addr) {
788f5ec4
TS		 1000 if (copy_from_user_timeval(&tv, target_tv_addr))
1001 return -TARGET_EFAULT;
31e31b8a
FB		 1002 tv_ptr = &tv;
1003 } else {
1004 tv_ptr = NULL;
1005 }
26edcf41 1006
31e31b8a 1007 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
53a5960a 1008
26edcf41
TS		 1009 if (!is_error(ret)) {
1010 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
1011 return -TARGET_EFAULT;
1012 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
1013 return -TARGET_EFAULT;
1014 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
1015 return -TARGET_EFAULT;
31e31b8a 1016
788f5ec4
TS		 1017 if (target_tv_addr && copy_to_user_timeval(target_tv_addr, &tv))
1018 return -TARGET_EFAULT;
31e31b8a 1019 }
579a97f7 1020
31e31b8a
FB		 1021 return ret;
1022}
055e0906 1023#endif
31e31b8a 1024
099d6b0f
RV		 1025static abi_long do_pipe2(int host_pipe[], int flags)
1026{
1027#ifdef CONFIG_PIPE2
1028 return pipe2(host_pipe, flags);
1029#else
1030 return -ENOSYS;
1031#endif
1032}
1033
fb41a66e
RH		 1034static abi_long do_pipe(void *cpu_env, abi_ulong pipedes,
1035 int flags, int is_pipe2)
099d6b0f
RV		 1036{
1037 int host_pipe[2];
1038 abi_long ret;
1039 ret = flags ? do_pipe2(host_pipe, flags) : pipe(host_pipe);
1040
1041 if (is_error(ret))
1042 return get_errno(ret);
fb41a66e
RH		 1043
1044 /* Several targets have special calling conventions for the original
1045 pipe syscall, but didn't replicate this into the pipe2 syscall. */
1046 if (!is_pipe2) {
1047#if defined(TARGET_ALPHA)
1048 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = host_pipe[1];
1049 return host_pipe[0];
1050#elif defined(TARGET_MIPS)
1051 ((CPUMIPSState*)cpu_env)->active_tc.gpr[3] = host_pipe[1];
1052 return host_pipe[0];
1053#elif defined(TARGET_SH4)
597c0212 1054 ((CPUSH4State*)cpu_env)->gregs[1] = host_pipe[1];
fb41a66e 1055 return host_pipe[0];
82f05b69
PM		 1056#elif defined(TARGET_SPARC)
1057 ((CPUSPARCState*)cpu_env)->regwptr[1] = host_pipe[1];
1058 return host_pipe[0];
597c0212 1059#endif
fb41a66e
RH		 1060 }
1061
099d6b0f
RV		 1062 if (put_user_s32(host_pipe[0], pipedes)
1063 || put_user_s32(host_pipe[1], pipedes + sizeof(host_pipe[0])))
1064 return -TARGET_EFAULT;
099d6b0f
RV		 1065 return get_errno(ret);
1066}
1067
b975b83b
LL		 1068static inline abi_long target_to_host_ip_mreq(struct ip_mreqn *mreqn,
1069 abi_ulong target_addr,
1070 socklen_t len)
1071{
1072 struct target_ip_mreqn *target_smreqn;
1073
1074 target_smreqn = lock_user(VERIFY_READ, target_addr, len, 1);
1075 if (!target_smreqn)
1076 return -TARGET_EFAULT;
1077 mreqn->imr_multiaddr.s_addr = target_smreqn->imr_multiaddr.s_addr;
1078 mreqn->imr_address.s_addr = target_smreqn->imr_address.s_addr;
1079 if (len == sizeof(struct target_ip_mreqn))
cbb21eed 1080 mreqn->imr_ifindex = tswapal(target_smreqn->imr_ifindex);
b975b83b
LL		 1081 unlock_user(target_smreqn, target_addr, 0);
1082
1083 return 0;
1084}
1085
579a97f7
FB		 1086static inline abi_long target_to_host_sockaddr(struct sockaddr *addr,
1087 abi_ulong target_addr,
1088 socklen_t len)
7854b056 1089{
607175e0
AJ		 1090 const socklen_t unix_maxlen = sizeof (struct sockaddr_un);
1091 sa_family_t sa_family;
53a5960a
PB		 1092 struct target_sockaddr *target_saddr;
1093
579a97f7
FB		 1094 target_saddr = lock_user(VERIFY_READ, target_addr, len, 1);
1095 if (!target_saddr)
1096 return -TARGET_EFAULT;
607175e0
AJ		 1097
1098 sa_family = tswap16(target_saddr->sa_family);
1099
1100 /* Oops. The caller might send a incomplete sun_path; sun_path
1101 * must be terminated by \0 (see the manual page), but
1102 * unfortunately it is quite common to specify sockaddr_un
1103 * length as "strlen(x->sun_path)" while it should be
1104 * "strlen(...) + 1". We'll fix that here if needed.
1105 * Linux kernel has a similar feature.
1106 */
1107
1108 if (sa_family == AF_UNIX) {
1109 if (len < unix_maxlen && len > 0) {
1110 char *cp = (char*)target_saddr;
1111
1112 if ( cp[len-1] && !cp[len] )
1113 len++;
1114 }
1115 if (len > unix_maxlen)
1116 len = unix_maxlen;
1117 }
1118
53a5960a 1119 memcpy(addr, target_saddr, len);
607175e0 1120 addr->sa_family = sa_family;
53a5960a 1121 unlock_user(target_saddr, target_addr, 0);
579a97f7
FB		 1122
1123 return 0;
7854b056
FB		 1124}
1125
579a97f7
FB		 1126static inline abi_long host_to_target_sockaddr(abi_ulong target_addr,
1127 struct sockaddr *addr,
1128 socklen_t len)
7854b056 1129{
53a5960a
PB		 1130 struct target_sockaddr *target_saddr;
1131
579a97f7
FB		 1132 target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0);
1133 if (!target_saddr)
1134 return -TARGET_EFAULT;
53a5960a
PB		 1135 memcpy(target_saddr, addr, len);
1136 target_saddr->sa_family = tswap16(addr->sa_family);
1137 unlock_user(target_saddr, target_addr, len);
579a97f7
FB		 1138
1139 return 0;
7854b056
FB		 1140}
1141
5a4a898d
FB		 1142static inline abi_long target_to_host_cmsg(struct msghdr *msgh,
1143 struct target_msghdr *target_msgh)
7854b056
FB		 1144{
1145 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
5a4a898d
FB		 1146 abi_long msg_controllen;
1147 abi_ulong target_cmsg_addr;
1148 struct target_cmsghdr *target_cmsg;
7854b056 1149 socklen_t space = 0;
5a4a898d 1150
cbb21eed 1151 msg_controllen = tswapal(target_msgh->msg_controllen);
5a4a898d
FB		 1152 if (msg_controllen < sizeof (struct target_cmsghdr))
1153 goto the_end;
cbb21eed 1154 target_cmsg_addr = tswapal(target_msgh->msg_control);
5a4a898d
FB		 1155 target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1);
1156 if (!target_cmsg)
1157 return -TARGET_EFAULT;
7854b056
FB		 1158
1159 while (cmsg && target_cmsg) {
1160 void *data = CMSG_DATA(cmsg);
1161 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1162
cbb21eed 1163 int len = tswapal(target_cmsg->cmsg_len)
7854b056
FB		 1164 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
1165
1166 space += CMSG_SPACE(len);
1167 if (space > msgh->msg_controllen) {
1168 space -= CMSG_SPACE(len);
31febb71 1169 gemu_log("Host cmsg overflow\n");
7854b056
FB		 1170 break;
1171 }
1172
dbf4f796
PJ		 1173 if (tswap32(target_cmsg->cmsg_level) == TARGET_SOL_SOCKET) {
1174 cmsg->cmsg_level = SOL_SOCKET;
1175 } else {
1176 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
1177 }
7854b056
FB		 1178 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
1179 cmsg->cmsg_len = CMSG_LEN(len);
1180
dbf4f796 1181 if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
7854b056
FB		 1182 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
1183 memcpy(data, target_data, len);
1184 } else {
1185 int *fd = (int *)data;
1186 int *target_fd = (int *)target_data;
1187 int i, numfds = len / sizeof(int);
1188
1189 for (i = 0; i < numfds; i++)
1190 fd[i] = tswap32(target_fd[i]);
1191 }
1192
1193 cmsg = CMSG_NXTHDR(msgh, cmsg);
1194 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
1195 }
5a4a898d
FB		 1196 unlock_user(target_cmsg, target_cmsg_addr, 0);
1197 the_end:
7854b056 1198 msgh->msg_controllen = space;
5a4a898d 1199 return 0;
7854b056
FB		 1200}
1201
5a4a898d
FB		 1202static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh,
1203 struct msghdr *msgh)
7854b056
FB		 1204{
1205 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
5a4a898d
FB		 1206 abi_long msg_controllen;
1207 abi_ulong target_cmsg_addr;
1208 struct target_cmsghdr *target_cmsg;
7854b056
FB		 1209 socklen_t space = 0;
1210
cbb21eed 1211 msg_controllen = tswapal(target_msgh->msg_controllen);
5a4a898d
FB		 1212 if (msg_controllen < sizeof (struct target_cmsghdr))
1213 goto the_end;
cbb21eed 1214 target_cmsg_addr = tswapal(target_msgh->msg_control);
5a4a898d
FB		 1215 target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0);
1216 if (!target_cmsg)
1217 return -TARGET_EFAULT;
1218
7854b056
FB		 1219 while (cmsg && target_cmsg) {
1220 void *data = CMSG_DATA(cmsg);
1221 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1222
1223 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
1224
1225 space += TARGET_CMSG_SPACE(len);
5a4a898d 1226 if (space > msg_controllen) {
7854b056 1227 space -= TARGET_CMSG_SPACE(len);
31febb71 1228 gemu_log("Target cmsg overflow\n");
7854b056
FB		 1229 break;
1230 }
1231
dbf4f796
PJ		 1232 if (cmsg->cmsg_level == SOL_SOCKET) {
1233 target_cmsg->cmsg_level = tswap32(TARGET_SOL_SOCKET);
1234 } else {
1235 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
1236 }
7854b056 1237 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
cbb21eed 1238 target_cmsg->cmsg_len = tswapal(TARGET_CMSG_LEN(len));
7854b056 1239
dbf4f796 1240 if ((cmsg->cmsg_level == SOL_SOCKET) &&
aebf5bc7 1241 (cmsg->cmsg_type == SCM_RIGHTS)) {
7854b056
FB		 1242 int *fd = (int *)data;
1243 int *target_fd = (int *)target_data;
1244 int i, numfds = len / sizeof(int);
1245
1246 for (i = 0; i < numfds; i++)
1247 target_fd[i] = tswap32(fd[i]);
dbf4f796 1248 } else if ((cmsg->cmsg_level == SOL_SOCKET) &&
aebf5bc7
JH		 1249 (cmsg->cmsg_type == SO_TIMESTAMP) &&
1250 (len == sizeof(struct timeval))) {
1251 /* copy struct timeval to target */
1252 struct timeval *tv = (struct timeval *)data;
1253 struct target_timeval *target_tv =
1254 (struct target_timeval *)target_data;
1255
1256 target_tv->tv_sec = tswapal(tv->tv_sec);
1257 target_tv->tv_usec = tswapal(tv->tv_usec);
1258 } else {
1259 gemu_log("Unsupported ancillary data: %d/%d\n",
1260 cmsg->cmsg_level, cmsg->cmsg_type);
1261 memcpy(target_data, data, len);
7854b056
FB		 1262 }
1263
1264 cmsg = CMSG_NXTHDR(msgh, cmsg);
1265 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
1266 }
5a4a898d
FB		 1267 unlock_user(target_cmsg, target_cmsg_addr, space);
1268 the_end:
cbb21eed 1269 target_msgh->msg_controllen = tswapal(space);
5a4a898d 1270 return 0;
7854b056
FB		 1271}
1272
0da46a6e 1273/* do_setsockopt() Must return target values and target errnos. */
992f48a0 1274static abi_long do_setsockopt(int sockfd, int level, int optname,
2f619698 1275 abi_ulong optval_addr, socklen_t optlen)
7854b056 1276{
992f48a0 1277 abi_long ret;
32407103 1278 int val;
b975b83b 1279 struct ip_mreqn *ip_mreq;
6e3cb58f 1280 struct ip_mreq_source *ip_mreq_source;
3b46e624 1281
8853f86e
FB		 1282 switch(level) {
1283 case SOL_TCP:
7854b056 1284 /* TCP options all take an 'int' value. */
7854b056 1285 if (optlen < sizeof(uint32_t))
0da46a6e 1286 return -TARGET_EINVAL;
3b46e624 1287
2f619698
FB		 1288 if (get_user_u32(val, optval_addr))
1289 return -TARGET_EFAULT;
8853f86e
FB		 1290 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
1291 break;
1292 case SOL_IP:
1293 switch(optname) {
2efbe911
FB		 1294 case IP_TOS:
1295 case IP_TTL:
8853f86e 1296 case IP_HDRINCL:
2efbe911
FB		 1297 case IP_ROUTER_ALERT:
1298 case IP_RECVOPTS:
1299 case IP_RETOPTS:
1300 case IP_PKTINFO:
1301 case IP_MTU_DISCOVER:
1302 case IP_RECVERR:
1303 case IP_RECVTOS:
1304#ifdef IP_FREEBIND
1305 case IP_FREEBIND:
1306#endif
1307 case IP_MULTICAST_TTL:
1308 case IP_MULTICAST_LOOP:
8853f86e
FB		 1309 val = 0;
1310 if (optlen >= sizeof(uint32_t)) {
2f619698
FB		 1311 if (get_user_u32(val, optval_addr))
1312 return -TARGET_EFAULT;
8853f86e 1313 } else if (optlen >= 1) {
2f619698
FB		 1314 if (get_user_u8(val, optval_addr))
1315 return -TARGET_EFAULT;
8853f86e
FB		 1316 }
1317 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
1318 break;
b975b83b
LL		 1319 case IP_ADD_MEMBERSHIP:
1320 case IP_DROP_MEMBERSHIP:
1321 if (optlen < sizeof (struct target_ip_mreq) ||
1322 optlen > sizeof (struct target_ip_mreqn))
1323 return -TARGET_EINVAL;
1324
1325 ip_mreq = (struct ip_mreqn *) alloca(optlen);
1326 target_to_host_ip_mreq(ip_mreq, optval_addr, optlen);
1327 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq, optlen));
1328 break;
1329
6e3cb58f
LL		 1330 case IP_BLOCK_SOURCE:
1331 case IP_UNBLOCK_SOURCE:
1332 case IP_ADD_SOURCE_MEMBERSHIP:
1333 case IP_DROP_SOURCE_MEMBERSHIP:
1334 if (optlen != sizeof (struct target_ip_mreq_source))
1335 return -TARGET_EINVAL;
1336
1337 ip_mreq_source = lock_user(VERIFY_READ, optval_addr, optlen, 1);
1338 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq_source, optlen));
1339 unlock_user (ip_mreq_source, optval_addr, 0);
1340 break;
1341
920394db
JH		 1342 default:
1343 goto unimplemented;
1344 }
1345 break;
0d78b3b5
LV		 1346 case SOL_IPV6:
1347 switch (optname) {
1348 case IPV6_MTU_DISCOVER:
1349 case IPV6_MTU:
1350 case IPV6_V6ONLY:
1351 case IPV6_RECVPKTINFO:
1352 val = 0;
1353 if (optlen < sizeof(uint32_t)) {
1354 return -TARGET_EINVAL;
1355 }
1356 if (get_user_u32(val, optval_addr)) {
1357 return -TARGET_EFAULT;
1358 }
1359 ret = get_errno(setsockopt(sockfd, level, optname,
1360 &val, sizeof(val)));
1361 break;
1362 default:
1363 goto unimplemented;
1364 }
1365 break;
920394db
JH		 1366 case SOL_RAW:
1367 switch (optname) {
1368 case ICMP_FILTER:
1369 /* struct icmp_filter takes an u32 value */
1370 if (optlen < sizeof(uint32_t)) {
1371 return -TARGET_EINVAL;
1372 }
1373
1374 if (get_user_u32(val, optval_addr)) {
1375 return -TARGET_EFAULT;
1376 }
1377 ret = get_errno(setsockopt(sockfd, level, optname,
1378 &val, sizeof(val)));
1379 break;
1380
8853f86e
FB		 1381 default:
1382 goto unimplemented;
1383 }
1384 break;
3532fa74 1385 case TARGET_SOL_SOCKET:
8853f86e 1386 switch (optname) {
1b09aeb9
LV		 1387 case TARGET_SO_RCVTIMEO:
1388 {
1389 struct timeval tv;
1390
1391 optname = SO_RCVTIMEO;
1392
1393set_timeout:
1394 if (optlen != sizeof(struct target_timeval)) {
1395 return -TARGET_EINVAL;
1396 }
1397
1398 if (copy_from_user_timeval(&tv, optval_addr)) {
1399 return -TARGET_EFAULT;
1400 }
1401
1402 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname,
1403 &tv, sizeof(tv)));
1404 return ret;
1405 }
1406 case TARGET_SO_SNDTIMEO:
1407 optname = SO_SNDTIMEO;
1408 goto set_timeout;
f57d4192
LV		 1409 case TARGET_SO_ATTACH_FILTER:
1410 {
1411 struct target_sock_fprog *tfprog;
1412 struct target_sock_filter *tfilter;
1413 struct sock_fprog fprog;
1414 struct sock_filter *filter;
1415 int i;
1416
1417 if (optlen != sizeof(*tfprog)) {
1418 return -TARGET_EINVAL;
1419 }
1420 if (!lock_user_struct(VERIFY_READ, tfprog, optval_addr, 0)) {
1421 return -TARGET_EFAULT;
1422 }
1423 if (!lock_user_struct(VERIFY_READ, tfilter,
1424 tswapal(tfprog->filter), 0)) {
1425 unlock_user_struct(tfprog, optval_addr, 1);
1426 return -TARGET_EFAULT;
1427 }
1428
1429 fprog.len = tswap16(tfprog->len);
1430 filter = malloc(fprog.len * sizeof(*filter));
1431 if (filter == NULL) {
1432 unlock_user_struct(tfilter, tfprog->filter, 1);
1433 unlock_user_struct(tfprog, optval_addr, 1);
1434 return -TARGET_ENOMEM;
1435 }
1436 for (i = 0; i < fprog.len; i++) {
1437 filter[i].code = tswap16(tfilter[i].code);
1438 filter[i].jt = tfilter[i].jt;
1439 filter[i].jf = tfilter[i].jf;
1440 filter[i].k = tswap32(tfilter[i].k);
1441 }
1442 fprog.filter = filter;
1443
1444 ret = get_errno(setsockopt(sockfd, SOL_SOCKET,
1445 SO_ATTACH_FILTER, &fprog, sizeof(fprog)));
1446 free(filter);
1447
1448 unlock_user_struct(tfilter, tfprog->filter, 1);
1449 unlock_user_struct(tfprog, optval_addr, 1);
1450 return ret;
1451 }
8853f86e 1452 /* Options with 'int' argument. */
3532fa74
FB		 1453 case TARGET_SO_DEBUG:
1454 optname = SO_DEBUG;
1455 break;
1456 case TARGET_SO_REUSEADDR:
1457 optname = SO_REUSEADDR;
1458 break;
1459 case TARGET_SO_TYPE:
1460 optname = SO_TYPE;
1461 break;
1462 case TARGET_SO_ERROR:
1463 optname = SO_ERROR;
1464 break;
1465 case TARGET_SO_DONTROUTE:
1466 optname = SO_DONTROUTE;
1467 break;
1468 case TARGET_SO_BROADCAST:
1469 optname = SO_BROADCAST;
1470 break;
1471 case TARGET_SO_SNDBUF:
1472 optname = SO_SNDBUF;
1473 break;
1474 case TARGET_SO_RCVBUF:
1475 optname = SO_RCVBUF;
1476 break;
1477 case TARGET_SO_KEEPALIVE:
1478 optname = SO_KEEPALIVE;
1479 break;
1480 case TARGET_SO_OOBINLINE:
1481 optname = SO_OOBINLINE;
1482 break;
1483 case TARGET_SO_NO_CHECK:
1484 optname = SO_NO_CHECK;
1485 break;
1486 case TARGET_SO_PRIORITY:
1487 optname = SO_PRIORITY;
1488 break;
5e83e8e3 1489#ifdef SO_BSDCOMPAT
3532fa74
FB		 1490 case TARGET_SO_BSDCOMPAT:
1491 optname = SO_BSDCOMPAT;
1492 break;
5e83e8e3 1493#endif
3532fa74
FB		 1494 case TARGET_SO_PASSCRED:
1495 optname = SO_PASSCRED;
1496 break;
1497 case TARGET_SO_TIMESTAMP:
1498 optname = SO_TIMESTAMP;
1499 break;
1500 case TARGET_SO_RCVLOWAT:
1501 optname = SO_RCVLOWAT;
1502 break;
8853f86e
FB		 1503 break;
1504 default:
1505 goto unimplemented;
1506 }
3532fa74 1507 if (optlen < sizeof(uint32_t))
2f619698 1508 return -TARGET_EINVAL;
3532fa74 1509
2f619698
FB		 1510 if (get_user_u32(val, optval_addr))
1511 return -TARGET_EFAULT;
3532fa74 1512 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
8853f86e 1513 break;
7854b056 1514 default:
8853f86e 1515 unimplemented:
b2bedb21 1516 gemu_log("Unsupported setsockopt level=%d optname=%d\n", level, optname);
6fa13c17 1517 ret = -TARGET_ENOPROTOOPT;
7854b056 1518 }
8853f86e 1519 return ret;
7854b056
FB		 1520}
1521
0da46a6e 1522/* do_getsockopt() Must return target values and target errnos. */
992f48a0 1523static abi_long do_getsockopt(int sockfd, int level, int optname,
2f619698 1524 abi_ulong optval_addr, abi_ulong optlen)
7854b056 1525{
992f48a0 1526 abi_long ret;
b55266b5
BS		 1527 int len, val;
1528 socklen_t lv;
8853f86e
FB		 1529
1530 switch(level) {
3532fa74 1531 case TARGET_SOL_SOCKET:
f3b974cd
JL		 1532 level = SOL_SOCKET;
1533 switch (optname) {
1534 /* These don't just return a single integer */
1535 case TARGET_SO_LINGER:
1536 case TARGET_SO_RCVTIMEO:
1537 case TARGET_SO_SNDTIMEO:
f3b974cd
JL		 1538 case TARGET_SO_PEERNAME:
1539 goto unimplemented;
583359a6
AP		 1540 case TARGET_SO_PEERCRED: {
1541 struct ucred cr;
1542 socklen_t crlen;
1543 struct target_ucred *tcr;
1544
1545 if (get_user_u32(len, optlen)) {
1546 return -TARGET_EFAULT;
1547 }
1548 if (len < 0) {
1549 return -TARGET_EINVAL;
1550 }
1551
1552 crlen = sizeof(cr);
1553 ret = get_errno(getsockopt(sockfd, level, SO_PEERCRED,
1554 &cr, &crlen));
1555 if (ret < 0) {
1556 return ret;
1557 }
1558 if (len > crlen) {
1559 len = crlen;
1560 }
1561 if (!lock_user_struct(VERIFY_WRITE, tcr, optval_addr, 0)) {
1562 return -TARGET_EFAULT;
1563 }
1564 __put_user(cr.pid, &tcr->pid);
1565 __put_user(cr.uid, &tcr->uid);
1566 __put_user(cr.gid, &tcr->gid);
1567 unlock_user_struct(tcr, optval_addr, 1);
1568 if (put_user_u32(len, optlen)) {
1569 return -TARGET_EFAULT;
1570 }
1571 break;
1572 }
f3b974cd
JL		 1573 /* Options with 'int' argument. */
1574 case TARGET_SO_DEBUG:
1575 optname = SO_DEBUG;
1576 goto int_case;
1577 case TARGET_SO_REUSEADDR:
1578 optname = SO_REUSEADDR;
1579 goto int_case;
1580 case TARGET_SO_TYPE:
1581 optname = SO_TYPE;
1582 goto int_case;
1583 case TARGET_SO_ERROR:
1584 optname = SO_ERROR;
1585 goto int_case;
1586 case TARGET_SO_DONTROUTE:
1587 optname = SO_DONTROUTE;
1588 goto int_case;
1589 case TARGET_SO_BROADCAST:
1590 optname = SO_BROADCAST;
1591 goto int_case;
1592 case TARGET_SO_SNDBUF:
1593 optname = SO_SNDBUF;
1594 goto int_case;
1595 case TARGET_SO_RCVBUF:
1596 optname = SO_RCVBUF;
1597 goto int_case;
1598 case TARGET_SO_KEEPALIVE:
1599 optname = SO_KEEPALIVE;
1600 goto int_case;
1601 case TARGET_SO_OOBINLINE:
1602 optname = SO_OOBINLINE;
1603 goto int_case;
1604 case TARGET_SO_NO_CHECK:
1605 optname = SO_NO_CHECK;
1606 goto int_case;
1607 case TARGET_SO_PRIORITY:
1608 optname = SO_PRIORITY;
1609 goto int_case;
1610#ifdef SO_BSDCOMPAT
1611 case TARGET_SO_BSDCOMPAT:
1612 optname = SO_BSDCOMPAT;
1613 goto int_case;
1614#endif
1615 case TARGET_SO_PASSCRED:
1616 optname = SO_PASSCRED;
1617 goto int_case;
1618 case TARGET_SO_TIMESTAMP:
1619 optname = SO_TIMESTAMP;
1620 goto int_case;
1621 case TARGET_SO_RCVLOWAT:
1622 optname = SO_RCVLOWAT;
1623 goto int_case;
8853f86e 1624 default:
2efbe911
FB		 1625 goto int_case;
1626 }
1627 break;
1628 case SOL_TCP:
1629 /* TCP options all take an 'int' value. */
1630 int_case:
2f619698
FB		 1631 if (get_user_u32(len, optlen))
1632 return -TARGET_EFAULT;
2efbe911 1633 if (len < 0)
0da46a6e 1634 return -TARGET_EINVAL;
73160d95 1635 lv = sizeof(lv);
2efbe911
FB		 1636 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
1637 if (ret < 0)
1638 return ret;
2efbe911
FB		 1639 if (len > lv)
1640 len = lv;
2f619698
FB		 1641 if (len == 4) {
1642 if (put_user_u32(val, optval_addr))
1643 return -TARGET_EFAULT;
1644 } else {
1645 if (put_user_u8(val, optval_addr))
1646 return -TARGET_EFAULT;
f3b974cd 1647 }
2f619698
FB		 1648 if (put_user_u32(len, optlen))
1649 return -TARGET_EFAULT;
2efbe911
FB		 1650 break;
1651 case SOL_IP:
1652 switch(optname) {
1653 case IP_TOS:
1654 case IP_TTL:
1655 case IP_HDRINCL:
1656 case IP_ROUTER_ALERT:
1657 case IP_RECVOPTS:
1658 case IP_RETOPTS:
1659 case IP_PKTINFO:
1660 case IP_MTU_DISCOVER:
1661 case IP_RECVERR:
1662 case IP_RECVTOS:
1663#ifdef IP_FREEBIND
1664 case IP_FREEBIND:
1665#endif
1666 case IP_MULTICAST_TTL:
1667 case IP_MULTICAST_LOOP:
2f619698
FB		 1668 if (get_user_u32(len, optlen))
1669 return -TARGET_EFAULT;
8853f86e 1670 if (len < 0)
0da46a6e 1671 return -TARGET_EINVAL;
73160d95 1672 lv = sizeof(lv);
8853f86e
FB		 1673 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
1674 if (ret < 0)
1675 return ret;
2efbe911 1676 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
2efbe911 1677 len = 1;
2f619698
FB		 1678 if (put_user_u32(len, optlen)
1679 || put_user_u8(val, optval_addr))
1680 return -TARGET_EFAULT;
2efbe911 1681 } else {
2efbe911
FB		 1682 if (len > sizeof(int))
1683 len = sizeof(int);
2f619698
FB		 1684 if (put_user_u32(len, optlen)
1685 || put_user_u32(val, optval_addr))
1686 return -TARGET_EFAULT;
2efbe911 1687 }
8853f86e 1688 break;
2efbe911 1689 default:
c02f499e
TS		 1690 ret = -TARGET_ENOPROTOOPT;
1691 break;
8853f86e
FB		 1692 }
1693 break;
1694 default:
1695 unimplemented:
1696 gemu_log("getsockopt level=%d optname=%d not yet supported\n",
1697 level, optname);
c02f499e 1698 ret = -TARGET_EOPNOTSUPP;
8853f86e
FB		 1699 break;
1700 }
1701 return ret;
7854b056
FB		 1702}
1703
f287b2c2
RH		 1704static struct iovec *lock_iovec(int type, abi_ulong target_addr,
1705 int count, int copy)
53a5960a
PB		 1706{
1707 struct target_iovec *target_vec;
f287b2c2
RH		 1708 struct iovec *vec;
1709 abi_ulong total_len, max_len;
d732dcb4 1710 int i;
501bb4b0 1711 int err = 0;
53a5960a 1712
f287b2c2
RH		 1713 if (count == 0) {
1714 errno = 0;
1715 return NULL;
1716 }
dfae8e00 1717 if (count < 0 || count > IOV_MAX) {
f287b2c2
RH		 1718 errno = EINVAL;
1719 return NULL;
1720 }
1721
1722 vec = calloc(count, sizeof(struct iovec));
1723 if (vec == NULL) {
1724 errno = ENOMEM;
1725 return NULL;
1726 }
1727
1728 target_vec = lock_user(VERIFY_READ, target_addr,
1729 count * sizeof(struct target_iovec), 1);
1730 if (target_vec == NULL) {
501bb4b0 1731 err = EFAULT;
f287b2c2
RH		 1732 goto fail2;
1733 }
1734
1735 /* ??? If host page size > target page size, this will result in a
1736 value larger than what we can actually support. */
1737 max_len = 0x7fffffff & TARGET_PAGE_MASK;
1738 total_len = 0;
1739
1740 for (i = 0; i < count; i++) {
1741 abi_ulong base = tswapal(target_vec[i].iov_base);
1742 abi_long len = tswapal(target_vec[i].iov_len);
1743
1744 if (len < 0) {
501bb4b0 1745 err = EINVAL;
f287b2c2
RH		 1746 goto fail;
1747 } else if (len == 0) {
1748 /* Zero length pointer is ignored. */
1749 vec[i].iov_base = 0;
41df8411 1750 } else {
f287b2c2
RH		 1751 vec[i].iov_base = lock_user(type, base, len, copy);
1752 if (!vec[i].iov_base) {
501bb4b0 1753 err = EFAULT;
f287b2c2
RH		 1754 goto fail;
1755 }
1756 if (len > max_len - total_len) {
1757 len = max_len - total_len;
1758 }
41df8411 1759 }
f287b2c2
RH		 1760 vec[i].iov_len = len;
1761 total_len += len;
579a97f7 1762 }
f287b2c2
RH		 1763
1764 unlock_user(target_vec, target_addr, 0);
1765 return vec;
1766
1767 fail:
f287b2c2 1768 unlock_user(target_vec, target_addr, 0);
501bb4b0
PM		 1769 fail2:
1770 free(vec);
1771 errno = err;
f287b2c2 1772 return NULL;
53a5960a
PB		 1773}
1774
f287b2c2
RH		 1775static void unlock_iovec(struct iovec *vec, abi_ulong target_addr,
1776 int count, int copy)
53a5960a
PB		 1777{
1778 struct target_iovec *target_vec;
53a5960a
PB		 1779 int i;
1780
f287b2c2
RH		 1781 target_vec = lock_user(VERIFY_READ, target_addr,
1782 count * sizeof(struct target_iovec), 1);
1783 if (target_vec) {
1784 for (i = 0; i < count; i++) {
1785 abi_ulong base = tswapal(target_vec[i].iov_base);
1786 abi_long len = tswapal(target_vec[i].iov_base);
1787 if (len < 0) {
1788 break;
1789 }
d732dcb4
AZ		 1790 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
1791 }
f287b2c2 1792 unlock_user(target_vec, target_addr, 0);
53a5960a 1793 }
579a97f7 1794
f287b2c2 1795 free(vec);
53a5960a
PB		 1796}
1797
53d09b76 1798static inline int target_to_host_sock_type(int *type)
3532fa74 1799{
f651e6ae
PJ		 1800 int host_type = 0;
1801 int target_type = *type;
1802
1803 switch (target_type & TARGET_SOCK_TYPE_MASK) {
3532fa74 1804 case TARGET_SOCK_DGRAM:
f651e6ae 1805 host_type = SOCK_DGRAM;
3532fa74
FB		 1806 break;
1807 case TARGET_SOCK_STREAM:
f651e6ae 1808 host_type = SOCK_STREAM;
3532fa74 1809 break;
f651e6ae
PJ		 1810 default:
1811 host_type = target_type & TARGET_SOCK_TYPE_MASK;
3532fa74
FB		 1812 break;
1813 }
f651e6ae 1814 if (target_type & TARGET_SOCK_CLOEXEC) {
53d09b76 1815#if defined(SOCK_CLOEXEC)
f651e6ae 1816 host_type |= SOCK_CLOEXEC;
53d09b76
EI		 1817#else
1818 return -TARGET_EINVAL;
1819#endif
f651e6ae
PJ		 1820 }
1821 if (target_type & TARGET_SOCK_NONBLOCK) {
53d09b76 1822#if defined(SOCK_NONBLOCK)
f651e6ae 1823 host_type |= SOCK_NONBLOCK;
53d09b76
EI		 1824#elif !defined(O_NONBLOCK)
1825 return -TARGET_EINVAL;
1826#endif
f651e6ae
PJ		 1827 }
1828 *type = host_type;
53d09b76
EI		 1829 return 0;
1830}
1831
1832/* Try to emulate socket type flags after socket creation. */
1833static int sock_flags_fixup(int fd, int target_type)
1834{
1835#if !defined(SOCK_NONBLOCK) && defined(O_NONBLOCK)
1836 if (target_type & TARGET_SOCK_NONBLOCK) {
1837 int flags = fcntl(fd, F_GETFL);
1838 if (fcntl(fd, F_SETFL, O_NONBLOCK | flags) == -1) {
1839 close(fd);
1840 return -TARGET_EINVAL;
1841 }
1842 }
1843#endif
1844 return fd;
f651e6ae
PJ		 1845}
1846
1847/* do_socket() Must return target values and target errnos. */
1848static abi_long do_socket(int domain, int type, int protocol)
1849{
53d09b76
EI		 1850 int target_type = type;
1851 int ret;
1852
1853 ret = target_to_host_sock_type(&type);
1854 if (ret) {
1855 return ret;
1856 }
f651e6ae 1857
12bc92ab
AZ		 1858 if (domain == PF_NETLINK)
1859 return -EAFNOSUPPORT; /* do not NETLINK socket connections possible */
53d09b76
EI		 1860 ret = get_errno(socket(domain, type, protocol));
1861 if (ret >= 0) {
1862 ret = sock_flags_fixup(ret, target_type);
1863 }
1864 return ret;
3532fa74
FB		 1865}
1866
0da46a6e 1867/* do_bind() Must return target values and target errnos. */
992f48a0
BS		 1868static abi_long do_bind(int sockfd, abi_ulong target_addr,
1869 socklen_t addrlen)
3532fa74 1870{
8f7aeaf6 1871 void *addr;
917507b0 1872 abi_long ret;
8f7aeaf6 1873
38724253 1874 if ((int)addrlen < 0) {
8f7aeaf6 1875 return -TARGET_EINVAL;
38724253 1876 }
8f7aeaf6 1877
607175e0 1878 addr = alloca(addrlen+1);
3b46e624 1879
917507b0
AP		 1880 ret = target_to_host_sockaddr(addr, target_addr, addrlen);
1881 if (ret)
1882 return ret;
1883
3532fa74
FB		 1884 return get_errno(bind(sockfd, addr, addrlen));
1885}
1886
0da46a6e 1887/* do_connect() Must return target values and target errnos. */
992f48a0
BS		 1888static abi_long do_connect(int sockfd, abi_ulong target_addr,
1889 socklen_t addrlen)
3532fa74 1890{
8f7aeaf6 1891 void *addr;
917507b0 1892 abi_long ret;
8f7aeaf6 1893
38724253 1894 if ((int)addrlen < 0) {
8f7aeaf6 1895 return -TARGET_EINVAL;
38724253 1896 }
8f7aeaf6
AJ		 1897
1898 addr = alloca(addrlen);
3b46e624 1899
917507b0
AP		 1900 ret = target_to_host_sockaddr(addr, target_addr, addrlen);
1901 if (ret)
1902 return ret;
1903
3532fa74
FB		 1904 return get_errno(connect(sockfd, addr, addrlen));
1905}
1906
f19e00d7
AG		 1907/* do_sendrecvmsg_locked() Must return target values and target errnos. */
1908static abi_long do_sendrecvmsg_locked(int fd, struct target_msghdr *msgp,
1909 int flags, int send)
3532fa74 1910{
6de645c7 1911 abi_long ret, len;
3532fa74
FB		 1912 struct msghdr msg;
1913 int count;
1914 struct iovec *vec;
992f48a0 1915 abi_ulong target_vec;
3532fa74 1916
3532fa74
FB		 1917 if (msgp->msg_name) {
1918 msg.msg_namelen = tswap32(msgp->msg_namelen);
1919 msg.msg_name = alloca(msg.msg_namelen);
cbb21eed 1920 ret = target_to_host_sockaddr(msg.msg_name, tswapal(msgp->msg_name),
3532fa74 1921 msg.msg_namelen);
917507b0 1922 if (ret) {
f287b2c2 1923 goto out2;
917507b0 1924 }
3532fa74
FB		 1925 } else {
1926 msg.msg_name = NULL;
1927 msg.msg_namelen = 0;
1928 }
cbb21eed 1929 msg.msg_controllen = 2 * tswapal(msgp->msg_controllen);
3532fa74
FB		 1930 msg.msg_control = alloca(msg.msg_controllen);
1931 msg.msg_flags = tswap32(msgp->msg_flags);
3b46e624 1932
cbb21eed 1933 count = tswapal(msgp->msg_iovlen);
cbb21eed 1934 target_vec = tswapal(msgp->msg_iov);
f287b2c2
RH		 1935 vec = lock_iovec(send ? VERIFY_READ : VERIFY_WRITE,
1936 target_vec, count, send);
1937 if (vec == NULL) {
1938 ret = -host_to_target_errno(errno);
1939 goto out2;
1940 }
3532fa74
FB		 1941 msg.msg_iovlen = count;
1942 msg.msg_iov = vec;
3b46e624 1943
3532fa74 1944 if (send) {
5a4a898d
FB		 1945 ret = target_to_host_cmsg(&msg, msgp);
1946 if (ret == 0)
1947 ret = get_errno(sendmsg(fd, &msg, flags));
3532fa74
FB		 1948 } else {
1949 ret = get_errno(recvmsg(fd, &msg, flags));
6de645c7
AZ		 1950 if (!is_error(ret)) {
1951 len = ret;
5a4a898d 1952 ret = host_to_target_cmsg(msgp, &msg);
ca619067
JH		 1953 if (!is_error(ret)) {
1954 msgp->msg_namelen = tswap32(msg.msg_namelen);
1955 if (msg.msg_name != NULL) {
1956 ret = host_to_target_sockaddr(tswapal(msgp->msg_name),
1957 msg.msg_name, msg.msg_namelen);
1958 if (ret) {
1959 goto out;
1960 }
1961 }
1962
6de645c7 1963 ret = len;
ca619067 1964 }
6de645c7 1965 }
3532fa74 1966 }
ca619067
JH		 1967
1968out:
3532fa74 1969 unlock_iovec(vec, target_vec, count, !send);
f287b2c2 1970out2:
f19e00d7
AG		 1971 return ret;
1972}
1973
1974static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg,
1975 int flags, int send)
1976{
1977 abi_long ret;
1978 struct target_msghdr *msgp;
1979
1980 if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE,
1981 msgp,
1982 target_msg,
1983 send ? 1 : 0)) {
1984 return -TARGET_EFAULT;
1985 }
1986 ret = do_sendrecvmsg_locked(fd, msgp, flags, send);
579a97f7 1987 unlock_user_struct(msgp, target_msg, send ? 0 : 1);
3532fa74
FB		 1988 return ret;
1989}
1990
f19e00d7
AG		 1991#ifdef TARGET_NR_sendmmsg
1992/* We don't rely on the C library to have sendmmsg/recvmmsg support,
1993 * so it might not have this *mmsg-specific flag either.
1994 */
1995#ifndef MSG_WAITFORONE
1996#define MSG_WAITFORONE 0x10000
1997#endif
1998
1999static abi_long do_sendrecvmmsg(int fd, abi_ulong target_msgvec,
2000 unsigned int vlen, unsigned int flags,
2001 int send)
2002{
2003 struct target_mmsghdr *mmsgp;
2004 abi_long ret = 0;
2005 int i;
2006
2007 if (vlen > UIO_MAXIOV) {
2008 vlen = UIO_MAXIOV;
2009 }
2010
2011 mmsgp = lock_user(VERIFY_WRITE, target_msgvec, sizeof(*mmsgp) * vlen, 1);
2012 if (!mmsgp) {
2013 return -TARGET_EFAULT;
2014 }
2015
2016 for (i = 0; i < vlen; i++) {
2017 ret = do_sendrecvmsg_locked(fd, &mmsgp[i].msg_hdr, flags, send);
2018 if (is_error(ret)) {
2019 break;
2020 }
2021 mmsgp[i].msg_len = tswap32(ret);
2022 /* MSG_WAITFORONE turns on MSG_DONTWAIT after one packet */
2023 if (flags & MSG_WAITFORONE) {
2024 flags |= MSG_DONTWAIT;
2025 }
2026 }
2027
2028 unlock_user(mmsgp, target_msgvec, sizeof(*mmsgp) * i);
2029
2030 /* Return number of datagrams sent if we sent any at all;
2031 * otherwise return the error.
2032 */
2033 if (i) {
2034 return i;
2035 }
2036 return ret;
2037}
2038#endif
2039
a94b4987
PM		 2040/* If we don't have a system accept4() then just call accept.
2041 * The callsites to do_accept4() will ensure that they don't
2042 * pass a non-zero flags argument in this config.
2043 */
2044#ifndef CONFIG_ACCEPT4
2045static inline int accept4(int sockfd, struct sockaddr *addr,
2046 socklen_t *addrlen, int flags)
2047{
2048 assert(flags == 0);
2049 return accept(sockfd, addr, addrlen);
2050}
2051#endif
2052
2053/* do_accept4() Must return target values and target errnos. */
2054static abi_long do_accept4(int fd, abi_ulong target_addr,
2055 abi_ulong target_addrlen_addr, int flags)
1be9e1dc 2056{
2f619698
FB		 2057 socklen_t addrlen;
2058 void *addr;
992f48a0 2059 abi_long ret;
1be9e1dc 2060
a94b4987
PM		 2061 if (target_addr == 0) {
2062 return get_errno(accept4(fd, NULL, NULL, flags));
2063 }
917507b0
AP		 2064
2065 /* linux returns EINVAL if addrlen pointer is invalid */
2f619698 2066 if (get_user_u32(addrlen, target_addrlen_addr))
917507b0 2067 return -TARGET_EINVAL;
2f619698 2068
38724253 2069 if ((int)addrlen < 0) {
8f7aeaf6 2070 return -TARGET_EINVAL;
38724253 2071 }
8f7aeaf6 2072
917507b0
AP		 2073 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
2074 return -TARGET_EINVAL;
2075
2f619698
FB		 2076 addr = alloca(addrlen);
2077
a94b4987 2078 ret = get_errno(accept4(fd, addr, &addrlen, flags));
1be9e1dc
PB		 2079 if (!is_error(ret)) {
2080 host_to_target_sockaddr(target_addr, addr, addrlen);
2f619698
FB		 2081 if (put_user_u32(addrlen, target_addrlen_addr))
2082 ret = -TARGET_EFAULT;
1be9e1dc
PB		 2083 }
2084 return ret;
2085}
2086
0da46a6e 2087/* do_getpeername() Must return target values and target errnos. */
992f48a0 2088static abi_long do_getpeername(int fd, abi_ulong target_addr,
2f619698 2089 abi_ulong target_addrlen_addr)
1be9e1dc 2090{
2f619698
FB		 2091 socklen_t addrlen;
2092 void *addr;
992f48a0 2093 abi_long ret;
1be9e1dc 2094
2f619698
FB		 2095 if (get_user_u32(addrlen, target_addrlen_addr))
2096 return -TARGET_EFAULT;
2097
38724253 2098 if ((int)addrlen < 0) {
8f7aeaf6 2099 return -TARGET_EINVAL;
38724253 2100 }
8f7aeaf6 2101
917507b0
AP		 2102 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
2103 return -TARGET_EFAULT;
2104
2f619698
FB		 2105 addr = alloca(addrlen);
2106
1be9e1dc
PB		 2107 ret = get_errno(getpeername(fd, addr, &addrlen));
2108 if (!is_error(ret)) {
2109 host_to_target_sockaddr(target_addr, addr, addrlen);
2f619698
FB		 2110 if (put_user_u32(addrlen, target_addrlen_addr))
2111 ret = -TARGET_EFAULT;
1be9e1dc
PB		 2112 }
2113 return ret;
2114}
2115
0da46a6e 2116/* do_getsockname() Must return target values and target errnos. */
992f48a0 2117static abi_long do_getsockname(int fd, abi_ulong target_addr,
2f619698 2118 abi_ulong target_addrlen_addr)
1be9e1dc 2119{
2f619698
FB		 2120 socklen_t addrlen;
2121 void *addr;
992f48a0 2122 abi_long ret;
1be9e1dc 2123
2f619698
FB		 2124 if (get_user_u32(addrlen, target_addrlen_addr))
2125 return -TARGET_EFAULT;
2126
38724253 2127 if ((int)addrlen < 0) {
8f7aeaf6 2128 return -TARGET_EINVAL;
38724253 2129 }
8f7aeaf6 2130
917507b0
AP		 2131 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
2132 return -TARGET_EFAULT;
2133
2f619698
FB		 2134 addr = alloca(addrlen);
2135
1be9e1dc
PB		 2136 ret = get_errno(getsockname(fd, addr, &addrlen));
2137 if (!is_error(ret)) {
2138 host_to_target_sockaddr(target_addr, addr, addrlen);
2f619698
FB		 2139 if (put_user_u32(addrlen, target_addrlen_addr))
2140 ret = -TARGET_EFAULT;
1be9e1dc
PB		 2141 }
2142 return ret;
2143}
2144
0da46a6e 2145/* do_socketpair() Must return target values and target errnos. */
992f48a0 2146static abi_long do_socketpair(int domain, int type, int protocol,
2f619698 2147 abi_ulong target_tab_addr)
1be9e1dc
PB		 2148{
2149 int tab[2];
992f48a0 2150 abi_long ret;
1be9e1dc 2151
f651e6ae
PJ		 2152 target_to_host_sock_type(&type);
2153
1be9e1dc
PB		 2154 ret = get_errno(socketpair(domain, type, protocol, tab));
2155 if (!is_error(ret)) {
2f619698
FB		 2156 if (put_user_s32(tab[0], target_tab_addr)
2157 || put_user_s32(tab[1], target_tab_addr + sizeof(tab[0])))
2158 ret = -TARGET_EFAULT;
1be9e1dc
PB		 2159 }
2160 return ret;
2161}
2162
0da46a6e 2163/* do_sendto() Must return target values and target errnos. */
992f48a0
BS		 2164static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags,
2165 abi_ulong target_addr, socklen_t addrlen)
1be9e1dc
PB		 2166{
2167 void *addr;
2168 void *host_msg;
992f48a0 2169 abi_long ret;
1be9e1dc 2170
38724253 2171 if ((int)addrlen < 0) {
8f7aeaf6 2172 return -TARGET_EINVAL;
38724253 2173 }
8f7aeaf6 2174
579a97f7
FB		 2175 host_msg = lock_user(VERIFY_READ, msg, len, 1);
2176 if (!host_msg)
2177 return -TARGET_EFAULT;
1be9e1dc
PB		 2178 if (target_addr) {
2179 addr = alloca(addrlen);
917507b0
AP		 2180 ret = target_to_host_sockaddr(addr, target_addr, addrlen);
2181 if (ret) {
2182 unlock_user(host_msg, msg, 0);
2183 return ret;
2184 }
1be9e1dc
PB		 2185 ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen));
2186 } else {
2187 ret = get_errno(send(fd, host_msg, len, flags));
2188 }
2189 unlock_user(host_msg, msg, 0);
2190 return ret;
2191}
2192
0da46a6e 2193/* do_recvfrom() Must return target values and target errnos. */
992f48a0
BS		 2194static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags,
2195 abi_ulong target_addr,
2196 abi_ulong target_addrlen)
1be9e1dc
PB		 2197{
2198 socklen_t addrlen;
2199 void *addr;
2200 void *host_msg;
992f48a0 2201 abi_long ret;
1be9e1dc 2202
579a97f7
FB		 2203 host_msg = lock_user(VERIFY_WRITE, msg, len, 0);
2204 if (!host_msg)
2205 return -TARGET_EFAULT;
1be9e1dc 2206 if (target_addr) {
2f619698
FB		 2207 if (get_user_u32(addrlen, target_addrlen)) {
2208 ret = -TARGET_EFAULT;
2209 goto fail;
2210 }
38724253 2211 if ((int)addrlen < 0) {
8f7aeaf6
AJ		 2212 ret = -TARGET_EINVAL;
2213 goto fail;
2214 }
1be9e1dc
PB		 2215 addr = alloca(addrlen);
2216 ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen));
2217 } else {
2218 addr = NULL; /* To keep compiler quiet. */
00aa0040 2219 ret = get_errno(qemu_recv(fd, host_msg, len, flags));
1be9e1dc
PB		 2220 }
2221 if (!is_error(ret)) {
2222 if (target_addr) {
2223 host_to_target_sockaddr(target_addr, addr, addrlen);
2f619698
FB		 2224 if (put_user_u32(addrlen, target_addrlen)) {
2225 ret = -TARGET_EFAULT;
2226 goto fail;
2227 }
1be9e1dc
PB		 2228 }
2229 unlock_user(host_msg, msg, len);
2230 } else {
2f619698 2231fail:
1be9e1dc
PB		 2232 unlock_user(host_msg, msg, 0);
2233 }
2234 return ret;
2235}
2236
32407103 2237#ifdef TARGET_NR_socketcall
0da46a6e 2238/* do_socketcall() Must return target values and target errnos. */
992f48a0 2239static abi_long do_socketcall(int num, abi_ulong vptr)
31e31b8a 2240{
62dc90c6
MT		 2241 static const unsigned ac[] = { /* number of arguments per call */
2242 [SOCKOP_socket] = 3, /* domain, type, protocol */
2243 [SOCKOP_bind] = 3, /* sockfd, addr, addrlen */
2244 [SOCKOP_connect] = 3, /* sockfd, addr, addrlen */
2245 [SOCKOP_listen] = 2, /* sockfd, backlog */
2246 [SOCKOP_accept] = 3, /* sockfd, addr, addrlen */
2247 [SOCKOP_accept4] = 4, /* sockfd, addr, addrlen, flags */
2248 [SOCKOP_getsockname] = 3, /* sockfd, addr, addrlen */
2249 [SOCKOP_getpeername] = 3, /* sockfd, addr, addrlen */
2250 [SOCKOP_socketpair] = 4, /* domain, type, protocol, tab */
2251 [SOCKOP_send] = 4, /* sockfd, msg, len, flags */
2252 [SOCKOP_recv] = 4, /* sockfd, msg, len, flags */
2253 [SOCKOP_sendto] = 6, /* sockfd, msg, len, flags, addr, addrlen */
2254 [SOCKOP_recvfrom] = 6, /* sockfd, msg, len, flags, addr, addrlen */
2255 [SOCKOP_shutdown] = 2, /* sockfd, how */
2256 [SOCKOP_sendmsg] = 3, /* sockfd, msg, flags */
2257 [SOCKOP_recvmsg] = 3, /* sockfd, msg, flags */
2258 [SOCKOP_setsockopt] = 5, /* sockfd, level, optname, optval, optlen */
2259 [SOCKOP_getsockopt] = 5, /* sockfd, level, optname, optval, optlen */
2260 };
2261 abi_long a[6]; /* max 6 args */
2262
2263 /* first, collect the arguments in a[] according to ac[] */
2264 if (num >= 0 && num < ARRAY_SIZE(ac)) {
2265 unsigned i;
2266 assert(ARRAY_SIZE(a) >= ac[num]); /* ensure we have space for args */
2267 for (i = 0; i < ac[num]; ++i) {
2268 if (get_user_ual(a[i], vptr + i * sizeof(abi_long)) != 0) {
b9d36eb2
AH		 2269 return -TARGET_EFAULT;
2270 }
31e31b8a 2271 }
62dc90c6 2272 }
7854b056 2273
62dc90c6
MT		 2274 /* now when we have the args, actually handle the call */
2275 switch (num) {
2276 case SOCKOP_socket: /* domain, type, protocol */
2277 return do_socket(a[0], a[1], a[2]);
2278 case SOCKOP_bind: /* sockfd, addr, addrlen */
2279 return do_bind(a[0], a[1], a[2]);
2280 case SOCKOP_connect: /* sockfd, addr, addrlen */
2281 return do_connect(a[0], a[1], a[2]);
2282 case SOCKOP_listen: /* sockfd, backlog */
2283 return get_errno(listen(a[0], a[1]));
2284 case SOCKOP_accept: /* sockfd, addr, addrlen */
2285 return do_accept4(a[0], a[1], a[2], 0);
2286 case SOCKOP_accept4: /* sockfd, addr, addrlen, flags */
2287 return do_accept4(a[0], a[1], a[2], a[3]);
2288 case SOCKOP_getsockname: /* sockfd, addr, addrlen */
2289 return do_getsockname(a[0], a[1], a[2]);
2290 case SOCKOP_getpeername: /* sockfd, addr, addrlen */
2291 return do_getpeername(a[0], a[1], a[2]);
2292 case SOCKOP_socketpair: /* domain, type, protocol, tab */
2293 return do_socketpair(a[0], a[1], a[2], a[3]);
2294 case SOCKOP_send: /* sockfd, msg, len, flags */
2295 return do_sendto(a[0], a[1], a[2], a[3], 0, 0);
2296 case SOCKOP_recv: /* sockfd, msg, len, flags */
2297 return do_recvfrom(a[0], a[1], a[2], a[3], 0, 0);
2298 case SOCKOP_sendto: /* sockfd, msg, len, flags, addr, addrlen */
2299 return do_sendto(a[0], a[1], a[2], a[3], a[4], a[5]);
2300 case SOCKOP_recvfrom: /* sockfd, msg, len, flags, addr, addrlen */
2301 return do_recvfrom(a[0], a[1], a[2], a[3], a[4], a[5]);
2302 case SOCKOP_shutdown: /* sockfd, how */
2303 return get_errno(shutdown(a[0], a[1]));
2304 case SOCKOP_sendmsg: /* sockfd, msg, flags */
2305 return do_sendrecvmsg(a[0], a[1], a[2], 1);
2306 case SOCKOP_recvmsg: /* sockfd, msg, flags */
2307 return do_sendrecvmsg(a[0], a[1], a[2], 0);
2308 case SOCKOP_setsockopt: /* sockfd, level, optname, optval, optlen */
2309 return do_setsockopt(a[0], a[1], a[2], a[3], a[4]);
2310 case SOCKOP_getsockopt: /* sockfd, level, optname, optval, optlen */
2311 return do_getsockopt(a[0], a[1], a[2], a[3], a[4]);
31e31b8a
FB		 2312 default:
2313 gemu_log("Unsupported socketcall: %d\n", num);
62dc90c6 2314 return -TARGET_ENOSYS;
31e31b8a 2315 }
31e31b8a 2316}
32407103 2317#endif
31e31b8a 2318
8853f86e
FB		 2319#define N_SHM_REGIONS 32
2320
2321static struct shm_region {
5a4a898d
FB		 2322 abi_ulong start;
2323 abi_ulong size;
8853f86e
FB		 2324} shm_regions[N_SHM_REGIONS];
2325
3eb6b044
TS		 2326struct target_semid_ds
2327{
2328 struct target_ipc_perm sem_perm;
992f48a0
BS		 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;
3eb6b044
TS		 2336};
2337
579a97f7
FB		 2338static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip,
2339 abi_ulong target_addr)
3eb6b044
TS		 2340{
2341 struct target_ipc_perm *target_ip;
2342 struct target_semid_ds *target_sd;
2343
579a97f7
FB		 2344 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
2345 return -TARGET_EFAULT;
e8bbe36c 2346 target_ip = &(target_sd->sem_perm);
55a2b163
PJ		 2347 host_ip->__key = tswap32(target_ip->__key);
2348 host_ip->uid = tswap32(target_ip->uid);
2349 host_ip->gid = tswap32(target_ip->gid);
2350 host_ip->cuid = tswap32(target_ip->cuid);
2351 host_ip->cgid = tswap32(target_ip->cgid);
2352#if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_PPC)
2353 host_ip->mode = tswap32(target_ip->mode);
2354#else
cbb21eed 2355 host_ip->mode = tswap16(target_ip->mode);
55a2b163
PJ		 2356#endif
2357#if defined(TARGET_PPC)
2358 host_ip->__seq = tswap32(target_ip->__seq);
2359#else
2360 host_ip->__seq = tswap16(target_ip->__seq);
2361#endif
3eb6b044 2362 unlock_user_struct(target_sd, target_addr, 0);
579a97f7 2363 return 0;
3eb6b044
TS		 2364}
2365
579a97f7
FB		 2366static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr,
2367 struct ipc_perm *host_ip)
3eb6b044
TS		 2368{
2369 struct target_ipc_perm *target_ip;
2370 struct target_semid_ds *target_sd;
2371
579a97f7
FB		 2372 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
2373 return -TARGET_EFAULT;
3eb6b044 2374 target_ip = &(target_sd->sem_perm);
55a2b163
PJ		 2375 target_ip->__key = tswap32(host_ip->__key);
2376 target_ip->uid = tswap32(host_ip->uid);
2377 target_ip->gid = tswap32(host_ip->gid);
2378 target_ip->cuid = tswap32(host_ip->cuid);
2379 target_ip->cgid = tswap32(host_ip->cgid);
2380#if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_PPC)
2381 target_ip->mode = tswap32(host_ip->mode);
2382#else
cbb21eed 2383 target_ip->mode = tswap16(host_ip->mode);
55a2b163
PJ		 2384#endif
2385#if defined(TARGET_PPC)
2386 target_ip->__seq = tswap32(host_ip->__seq);
2387#else
2388 target_ip->__seq = tswap16(host_ip->__seq);
2389#endif
3eb6b044 2390 unlock_user_struct(target_sd, target_addr, 1);
579a97f7 2391 return 0;
3eb6b044
TS		 2392}
2393
579a97f7
FB		 2394static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd,
2395 abi_ulong target_addr)
3eb6b044
TS		 2396{
2397 struct target_semid_ds *target_sd;
2398
579a97f7
FB		 2399 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
2400 return -TARGET_EFAULT;
e5289087
AJ		 2401 if (target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr))
2402 return -TARGET_EFAULT;
cbb21eed
MB		 2403 host_sd->sem_nsems = tswapal(target_sd->sem_nsems);
2404 host_sd->sem_otime = tswapal(target_sd->sem_otime);
2405 host_sd->sem_ctime = tswapal(target_sd->sem_ctime);
3eb6b044 2406 unlock_user_struct(target_sd, target_addr, 0);
579a97f7 2407 return 0;
3eb6b044
TS		 2408}
2409
579a97f7
FB		 2410static inline abi_long host_to_target_semid_ds(abi_ulong target_addr,
2411 struct semid_ds *host_sd)
3eb6b044
TS		 2412{
2413 struct target_semid_ds *target_sd;
2414
579a97f7
FB		 2415 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
2416 return -TARGET_EFAULT;
e5289087 2417 if (host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm)))
3a93113a 2418 return -TARGET_EFAULT;
cbb21eed
MB		 2419 target_sd->sem_nsems = tswapal(host_sd->sem_nsems);
2420 target_sd->sem_otime = tswapal(host_sd->sem_otime);
2421 target_sd->sem_ctime = tswapal(host_sd->sem_ctime);
3eb6b044 2422 unlock_user_struct(target_sd, target_addr, 1);
579a97f7 2423 return 0;
3eb6b044
TS		 2424}
2425
e5289087
AJ		 2426struct target_seminfo {
2427 int semmap;
2428 int semmni;
2429 int semmns;
2430 int semmnu;
2431 int semmsl;
2432 int semopm;
2433 int semume;
2434 int semusz;
2435 int semvmx;
2436 int semaem;
2437};
2438
2439static inline abi_long host_to_target_seminfo(abi_ulong target_addr,
2440 struct seminfo *host_seminfo)
2441{
2442 struct target_seminfo *target_seminfo;
2443 if (!lock_user_struct(VERIFY_WRITE, target_seminfo, target_addr, 0))
2444 return -TARGET_EFAULT;
2445 __put_user(host_seminfo->semmap, &target_seminfo->semmap);
2446 __put_user(host_seminfo->semmni, &target_seminfo->semmni);
2447 __put_user(host_seminfo->semmns, &target_seminfo->semmns);
2448 __put_user(host_seminfo->semmnu, &target_seminfo->semmnu);
2449 __put_user(host_seminfo->semmsl, &target_seminfo->semmsl);
2450 __put_user(host_seminfo->semopm, &target_seminfo->semopm);
2451 __put_user(host_seminfo->semume, &target_seminfo->semume);
2452 __put_user(host_seminfo->semusz, &target_seminfo->semusz);
2453 __put_user(host_seminfo->semvmx, &target_seminfo->semvmx);
2454 __put_user(host_seminfo->semaem, &target_seminfo->semaem);
2455 unlock_user_struct(target_seminfo, target_addr, 1);
2456 return 0;
2457}
2458
fa294816
TS		 2459union semun {
2460 int val;
3eb6b044 2461 struct semid_ds *buf;
fa294816 2462 unsigned short *array;
e5289087 2463 struct seminfo *__buf;
fa294816
TS		 2464};
2465
3eb6b044
TS		 2466union target_semun {
2467 int val;
e5289087
AJ		 2468 abi_ulong buf;
2469 abi_ulong array;
2470 abi_ulong __buf;
3eb6b044
TS		 2471};
2472
e5289087
AJ		 2473static inline abi_long target_to_host_semarray(int semid, unsigned short **host_array,
2474 abi_ulong target_addr)
3eb6b044 2475{
e5289087
AJ		 2476 int nsems;
2477 unsigned short *array;
2478 union semun semun;
2479 struct semid_ds semid_ds;
2480 int i, ret;
3eb6b044 2481
e5289087
AJ		 2482 semun.buf = &semid_ds;
2483
2484 ret = semctl(semid, 0, IPC_STAT, semun);
2485 if (ret == -1)
2486 return get_errno(ret);
2487
2488 nsems = semid_ds.sem_nsems;
2489
2490 *host_array = malloc(nsems*sizeof(unsigned short));
69d4c703
PM		 2491 if (!*host_array) {
2492 return -TARGET_ENOMEM;
2493 }
e5289087
AJ		 2494 array = lock_user(VERIFY_READ, target_addr,
2495 nsems*sizeof(unsigned short), 1);
69d4c703
PM		 2496 if (!array) {
2497 free(*host_array);
e5289087 2498 return -TARGET_EFAULT;
69d4c703 2499 }
e5289087
AJ		 2500
2501 for(i=0; i<nsems; i++) {
2502 __get_user((*host_array)[i], &array[i]);
3eb6b044 2503 }
e5289087
AJ		 2504 unlock_user(array, target_addr, 0);
2505
579a97f7 2506 return 0;
3eb6b044
TS		 2507}
2508
e5289087
AJ		 2509static inline abi_long host_to_target_semarray(int semid, abi_ulong target_addr,
2510 unsigned short **host_array)
3eb6b044 2511{
e5289087
AJ		 2512 int nsems;
2513 unsigned short *array;
2514 union semun semun;
2515 struct semid_ds semid_ds;
2516 int i, ret;
3eb6b044 2517
e5289087
AJ		 2518 semun.buf = &semid_ds;
2519
2520 ret = semctl(semid, 0, IPC_STAT, semun);
2521 if (ret == -1)
2522 return get_errno(ret);
2523
2524 nsems = semid_ds.sem_nsems;
2525
2526 array = lock_user(VERIFY_WRITE, target_addr,
2527 nsems*sizeof(unsigned short), 0);
2528 if (!array)
2529 return -TARGET_EFAULT;
2530
2531 for(i=0; i<nsems; i++) {
2532 __put_user((*host_array)[i], &array[i]);
3eb6b044 2533 }
e5289087
AJ		 2534 free(*host_array);
2535 unlock_user(array, target_addr, 1);
2536
579a97f7 2537 return 0;
3eb6b044
TS		 2538}
2539
e5289087
AJ		 2540static inline abi_long do_semctl(int semid, int semnum, int cmd,
2541 union target_semun target_su)
3eb6b044
TS		 2542{
2543 union semun arg;
2544 struct semid_ds dsarg;
7b8118e8 2545 unsigned short *array = NULL;
e5289087
AJ		 2546 struct seminfo seminfo;
2547 abi_long ret = -TARGET_EINVAL;
2548 abi_long err;
2549 cmd &= 0xff;
3eb6b044
TS		 2550
2551 switch( cmd ) {
2552 case GETVAL:
3eb6b044 2553 case SETVAL:
cbb21eed 2554 arg.val = tswap32(target_su.val);
e5289087 2555 ret = get_errno(semctl(semid, semnum, cmd, arg));
cbb21eed 2556 target_su.val = tswap32(arg.val);
3eb6b044
TS		 2557 break;
2558 case GETALL:
3eb6b044 2559 case SETALL:
e5289087
AJ		 2560 err = target_to_host_semarray(semid, &array, target_su.array);
2561 if (err)
2562 return err;
2563 arg.array = array;
2564 ret = get_errno(semctl(semid, semnum, cmd, arg));
2565 err = host_to_target_semarray(semid, target_su.array, &array);
2566 if (err)
2567 return err;
3eb6b044
TS		 2568 break;
2569 case IPC_STAT:
3eb6b044 2570 case IPC_SET:
e5289087
AJ		 2571 case SEM_STAT:
2572 err = target_to_host_semid_ds(&dsarg, target_su.buf);
2573 if (err)
2574 return err;
2575 arg.buf = &dsarg;
2576 ret = get_errno(semctl(semid, semnum, cmd, arg));
2577 err = host_to_target_semid_ds(target_su.buf, &dsarg);
2578 if (err)
2579 return err;
2580 break;
2581 case IPC_INFO:
2582 case SEM_INFO:
2583 arg.__buf = &seminfo;
2584 ret = get_errno(semctl(semid, semnum, cmd, arg));
2585 err = host_to_target_seminfo(target_su.__buf, &seminfo);
2586 if (err)
2587 return err;
2588 break;
2589 case IPC_RMID:
2590 case GETPID:
2591 case GETNCNT:
2592 case GETZCNT:
2593 ret = get_errno(semctl(semid, semnum, cmd, NULL));
3eb6b044 2594 break;
3eb6b044
TS		 2595 }
2596
2597 return ret;
2598}
2599
e5289087
AJ		 2600struct target_sembuf {
2601 unsigned short sem_num;
2602 short sem_op;
2603 short sem_flg;
2604};
2605
2606static inline abi_long target_to_host_sembuf(struct sembuf *host_sembuf,
2607 abi_ulong target_addr,
2608 unsigned nsops)
2609{
2610 struct target_sembuf *target_sembuf;
2611 int i;
2612
2613 target_sembuf = lock_user(VERIFY_READ, target_addr,
2614 nsops*sizeof(struct target_sembuf), 1);
2615 if (!target_sembuf)
2616 return -TARGET_EFAULT;
2617
2618 for(i=0; i<nsops; i++) {
2619 __get_user(host_sembuf[i].sem_num, &target_sembuf[i].sem_num);
2620 __get_user(host_sembuf[i].sem_op, &target_sembuf[i].sem_op);
2621 __get_user(host_sembuf[i].sem_flg, &target_sembuf[i].sem_flg);
2622 }
2623
2624 unlock_user(target_sembuf, target_addr, 0);
2625
2626 return 0;
2627}
2628
2629static inline abi_long do_semop(int semid, abi_long ptr, unsigned nsops)
2630{
2631 struct sembuf sops[nsops];
2632
2633 if (target_to_host_sembuf(sops, ptr, nsops))
2634 return -TARGET_EFAULT;
2635
c7128c9f 2636 return get_errno(semop(semid, sops, nsops));
e5289087
AJ		 2637}
2638
1bc012f6
TS		 2639struct target_msqid_ds
2640{
1c54ff97
AJ		 2641 struct target_ipc_perm msg_perm;
2642 abi_ulong msg_stime;
2643#if TARGET_ABI_BITS == 32
2644 abi_ulong __unused1;
2645#endif
2646 abi_ulong msg_rtime;
2647#if TARGET_ABI_BITS == 32
2648 abi_ulong __unused2;
2649#endif
2650 abi_ulong msg_ctime;
2651#if TARGET_ABI_BITS == 32
2652 abi_ulong __unused3;
2653#endif
2654 abi_ulong __msg_cbytes;
2655 abi_ulong msg_qnum;
2656 abi_ulong msg_qbytes;
2657 abi_ulong msg_lspid;
2658 abi_ulong msg_lrpid;
2659 abi_ulong __unused4;
2660 abi_ulong __unused5;
1bc012f6
TS		 2661};
2662
579a97f7
FB		 2663static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md,
2664 abi_ulong target_addr)
1bc012f6
TS		 2665{
2666 struct target_msqid_ds *target_md;
2667
579a97f7
FB		 2668 if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1))
2669 return -TARGET_EFAULT;
1c54ff97
AJ		 2670 if (target_to_host_ipc_perm(&(host_md->msg_perm),target_addr))
2671 return -TARGET_EFAULT;
cbb21eed
MB		 2672 host_md->msg_stime = tswapal(target_md->msg_stime);
2673 host_md->msg_rtime = tswapal(target_md->msg_rtime);
2674 host_md->msg_ctime = tswapal(target_md->msg_ctime);
2675 host_md->__msg_cbytes = tswapal(target_md->__msg_cbytes);
2676 host_md->msg_qnum = tswapal(target_md->msg_qnum);
2677 host_md->msg_qbytes = tswapal(target_md->msg_qbytes);
2678 host_md->msg_lspid = tswapal(target_md->msg_lspid);
2679 host_md->msg_lrpid = tswapal(target_md->msg_lrpid);
1bc012f6 2680 unlock_user_struct(target_md, target_addr, 0);
579a97f7 2681 return 0;
1bc012f6
TS		 2682}
2683
579a97f7
FB		 2684static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr,
2685 struct msqid_ds *host_md)
1bc012f6
TS		 2686{
2687 struct target_msqid_ds *target_md;
2688
579a97f7
FB		 2689 if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0))
2690 return -TARGET_EFAULT;
1c54ff97
AJ		 2691 if (host_to_target_ipc_perm(target_addr,&(host_md->msg_perm)))
2692 return -TARGET_EFAULT;
cbb21eed
MB		 2693 target_md->msg_stime = tswapal(host_md->msg_stime);
2694 target_md->msg_rtime = tswapal(host_md->msg_rtime);
2695 target_md->msg_ctime = tswapal(host_md->msg_ctime);
2696 target_md->__msg_cbytes = tswapal(host_md->__msg_cbytes);
2697 target_md->msg_qnum = tswapal(host_md->msg_qnum);
2698 target_md->msg_qbytes = tswapal(host_md->msg_qbytes);
2699 target_md->msg_lspid = tswapal(host_md->msg_lspid);
2700 target_md->msg_lrpid = tswapal(host_md->msg_lrpid);
1bc012f6 2701 unlock_user_struct(target_md, target_addr, 1);
579a97f7 2702 return 0;
1bc012f6
TS		 2703}
2704
1c54ff97
AJ		 2705struct target_msginfo {
2706 int msgpool;
2707 int msgmap;
2708 int msgmax;
2709 int msgmnb;
2710 int msgmni;
2711 int msgssz;
2712 int msgtql;
2713 unsigned short int msgseg;
2714};
2715
2716static inline abi_long host_to_target_msginfo(abi_ulong target_addr,
2717 struct msginfo *host_msginfo)
2718{
2719 struct target_msginfo *target_msginfo;
2720 if (!lock_user_struct(VERIFY_WRITE, target_msginfo, target_addr, 0))
2721 return -TARGET_EFAULT;
2722 __put_user(host_msginfo->msgpool, &target_msginfo->msgpool);
2723 __put_user(host_msginfo->msgmap, &target_msginfo->msgmap);
2724 __put_user(host_msginfo->msgmax, &target_msginfo->msgmax);
2725 __put_user(host_msginfo->msgmnb, &target_msginfo->msgmnb);
2726 __put_user(host_msginfo->msgmni, &target_msginfo->msgmni);
2727 __put_user(host_msginfo->msgssz, &target_msginfo->msgssz);
2728 __put_user(host_msginfo->msgtql, &target_msginfo->msgtql);
2729 __put_user(host_msginfo->msgseg, &target_msginfo->msgseg);
2730 unlock_user_struct(target_msginfo, target_addr, 1);
00b229ac 2731 return 0;
1c54ff97
AJ		 2732}
2733
2734static inline abi_long do_msgctl(int msgid, int cmd, abi_long ptr)
1bc012f6
TS		 2735{
2736 struct msqid_ds dsarg;
1c54ff97
AJ		 2737 struct msginfo msginfo;
2738 abi_long ret = -TARGET_EINVAL;
2739
2740 cmd &= 0xff;
2741
2742 switch (cmd) {
1bc012f6
TS		 2743 case IPC_STAT:
2744 case IPC_SET:
1c54ff97
AJ		 2745 case MSG_STAT:
2746 if (target_to_host_msqid_ds(&dsarg,ptr))
2747 return -TARGET_EFAULT;
2748 ret = get_errno(msgctl(msgid, cmd, &dsarg));
2749 if (host_to_target_msqid_ds(ptr,&dsarg))
2750 return -TARGET_EFAULT;
2751 break;
2752 case IPC_RMID:
2753 ret = get_errno(msgctl(msgid, cmd, NULL));
2754 break;
2755 case IPC_INFO:
2756 case MSG_INFO:
2757 ret = get_errno(msgctl(msgid, cmd, (struct msqid_ds *)&msginfo));
2758 if (host_to_target_msginfo(ptr, &msginfo))
2759 return -TARGET_EFAULT;
2760 break;
1bc012f6 2761 }
1c54ff97 2762
1bc012f6
TS		 2763 return ret;
2764}
2765
2766struct target_msgbuf {
1c54ff97
AJ		 2767 abi_long mtype;
2768 char mtext[1];
1bc012f6
TS		 2769};
2770
992f48a0
BS		 2771static inline abi_long do_msgsnd(int msqid, abi_long msgp,
2772 unsigned int msgsz, int msgflg)
1bc012f6
TS		 2773{
2774 struct target_msgbuf *target_mb;
2775 struct msgbuf *host_mb;
992f48a0 2776 abi_long ret = 0;
1bc012f6 2777
579a97f7
FB		 2778 if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0))
2779 return -TARGET_EFAULT;
1bc012f6 2780 host_mb = malloc(msgsz+sizeof(long));
cbb21eed 2781 host_mb->mtype = (abi_long) tswapal(target_mb->mtype);
1c54ff97 2782 memcpy(host_mb->mtext, target_mb->mtext, msgsz);
1bc012f6
TS		 2783 ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg));
2784 free(host_mb);
2785 unlock_user_struct(target_mb, msgp, 0);
2786
2787 return ret;
2788}
2789
992f48a0 2790static inline abi_long do_msgrcv(int msqid, abi_long msgp,
1c54ff97 2791 unsigned int msgsz, abi_long msgtyp,
992f48a0 2792 int msgflg)
1bc012f6
TS		 2793{
2794 struct target_msgbuf *target_mb;
579a97f7 2795 char *target_mtext;
1bc012f6 2796 struct msgbuf *host_mb;
992f48a0 2797 abi_long ret = 0;
1bc012f6 2798
579a97f7
FB		 2799 if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0))
2800 return -TARGET_EFAULT;
1c54ff97 2801
0d07fe47 2802 host_mb = g_malloc(msgsz+sizeof(long));
79dd77de 2803 ret = get_errno(msgrcv(msqid, host_mb, msgsz, msgtyp, msgflg));
1c54ff97 2804
579a97f7
FB		 2805 if (ret > 0) {
2806 abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong);
2807 target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0);
2808 if (!target_mtext) {
2809 ret = -TARGET_EFAULT;
2810 goto end;
2811 }
1c54ff97 2812 memcpy(target_mb->mtext, host_mb->mtext, ret);
579a97f7
FB		 2813 unlock_user(target_mtext, target_mtext_addr, ret);
2814 }
1c54ff97 2815
cbb21eed 2816 target_mb->mtype = tswapal(host_mb->mtype);
1bc012f6 2817
579a97f7
FB		 2818end:
2819 if (target_mb)
2820 unlock_user_struct(target_mb, msgp, 1);
0d07fe47 2821 g_free(host_mb);
1bc012f6
TS		 2822 return ret;
2823}
2824
88a8c984
RV		 2825static 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
2845static 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
2865struct target_shminfo {
2866 abi_ulong shmmax;
2867 abi_ulong shmmin;
2868 abi_ulong shmmni;
2869 abi_ulong shmseg;
2870 abi_ulong shmall;
2871};
2872
2873static 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
2888struct 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
2897static 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
2913static 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
2952static 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
3005static 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;
e00ac249 3012 page_set_flags(shmaddr, shmaddr + shm_regions[i].size, 0);
88a8c984
RV		 3013 break;
3014 }
3015 }
3016
3017 return get_errno(shmdt(g2h(shmaddr)));
3018}
3019
1c54ff97 3020#ifdef TARGET_NR_ipc
53a5960a 3021/* ??? This only works with linear mappings. */
0da46a6e 3022/* do_ipc() must return target values and target errnos. */
992f48a0
BS		 3023static abi_long do_ipc(unsigned int call, int first,
3024 int second, int third,
3025 abi_long ptr, abi_long fifth)
8853f86e
FB		 3026{
3027 int version;
992f48a0 3028 abi_long ret = 0;
8853f86e
FB		 3029
3030 version = call >> 16;
3031 call &= 0xffff;
3032
3033 switch (call) {
fa294816 3034 case IPCOP_semop:
e5289087 3035 ret = do_semop(first, ptr, second);
fa294816
TS		 3036 break;
3037
3038 case IPCOP_semget:
3039 ret = get_errno(semget(first, second, third));
3040 break;
3041
3042 case IPCOP_semctl:
e5289087 3043 ret = do_semctl(first, second, third, (union target_semun)(abi_ulong) ptr);
fa294816 3044 break;
d96372ef 3045
1c54ff97
AJ		 3046 case IPCOP_msgget:
3047 ret = get_errno(msgget(first, second));
3048 break;
d96372ef 3049
1c54ff97
AJ		 3050 case IPCOP_msgsnd:
3051 ret = do_msgsnd(first, ptr, second, third);
3052 break;
d96372ef 3053
1c54ff97
AJ		 3054 case IPCOP_msgctl:
3055 ret = do_msgctl(first, second, ptr);
3056 break;
d96372ef 3057
1c54ff97
AJ		 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 }
d96372ef 3071
79dd77de 3072 ret = do_msgrcv(first, tswapal(tmp->msgp), second, tswapal(tmp->msgtyp), third);
d96372ef 3073
1c54ff97
AJ		 3074 unlock_user_struct(tmp, ptr, 0);
3075 break;
3076 }
3077 default:
3078 ret = do_msgrcv(first, ptr, second, fifth, third);
3079 }
3080 break;
d96372ef 3081
8853f86e 3082 case IPCOP_shmat:
88a8c984
RV		 3083 switch (version) {
3084 default:
5a4a898d
FB		 3085 {
3086 abi_ulong raddr;
88a8c984
RV		 3087 raddr = do_shmat(first, ptr, second);
3088 if (is_error(raddr))
3089 return get_errno(raddr);
2f619698 3090 if (put_user_ual(raddr, third))
5a4a898d 3091 return -TARGET_EFAULT;
88a8c984
RV		 3092 break;
3093 }
3094 case 1:
3095 ret = -TARGET_EINVAL;
3096 break;
5a4a898d 3097 }
8853f86e
FB		 3098 break;
3099 case IPCOP_shmdt:
88a8c984 3100 ret = do_shmdt(ptr);
8853f86e
FB		 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:
a2926784 3110 ret = do_shmctl(first, second, ptr);
8853f86e
FB		 3111 break;
3112 default:
32407103 3113 gemu_log("Unsupported ipc call: %d (version %d)\n", call, version);
0da46a6e 3114 ret = -TARGET_ENOSYS;
8853f86e
FB		 3115 break;
3116 }
3117 return ret;
3118}
32407103 3119#endif
8853f86e 3120
31e31b8a 3121/* kernel structure types definitions */
31e31b8a 3122
001faf32 3123#define STRUCT(name, ...) STRUCT_ ## name,
31e31b8a
FB		 3124#define STRUCT_SPECIAL(name) STRUCT_ ## name,
3125enum {
3126#include "syscall_types.h"
3127};
3128#undef STRUCT
3129#undef STRUCT_SPECIAL
3130
001faf32 3131#define STRUCT(name, ...) static const argtype struct_ ## name ## _def[] = { __VA_ARGS__, TYPE_NULL };
31e31b8a
FB		 3132#define STRUCT_SPECIAL(name)
3133#include "syscall_types.h"
3134#undef STRUCT
3135#undef STRUCT_SPECIAL
3136
d2ef05bb
PM		 3137typedef struct IOCTLEntry IOCTLEntry;
3138
3139typedef abi_long do_ioctl_fn(const IOCTLEntry *ie, uint8_t *buf_temp,
3140 int fd, abi_long cmd, abi_long arg);
3141
3142struct IOCTLEntry {
2ab83ea7
FB		 3143 unsigned int target_cmd;
3144 unsigned int host_cmd;
31e31b8a
FB		 3145 const char *name;
3146 int access;
d2ef05bb 3147 do_ioctl_fn *do_ioctl;
1a9353d2 3148 const argtype arg_type[5];
d2ef05bb 3149};
31e31b8a
FB		 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
dace20dc 3157#ifdef CONFIG_FIEMAP
285da2b9
PM		 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
3165static 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}
dace20dc 3244#endif
285da2b9 3245
059c2f2c
LV		 3246static 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
56e904ec
AG		 3340static 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 }
3558out:
ad11ad77 3559 g_free(big_buf);
56e904ec
AG		 3560 return ret;
3561}
3562
7ff7b666
LV		 3563static 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
9f106a75 3626static IOCTLEntry ioctl_entries[] = {
001faf32 3627#define IOCTL(cmd, access, ...) \
d2ef05bb
PM		 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__ } },
31e31b8a
FB		 3631#include "ioctls.h"
3632 { 0, 0, },
3633};
3634
53a5960a 3635/* ??? Implement proper locking for ioctls. */
0da46a6e 3636/* do_ioctl() Must return target values and target errnos. */
992f48a0 3637static abi_long do_ioctl(int fd, abi_long cmd, abi_long arg)
31e31b8a
FB		 3638{
3639 const IOCTLEntry *ie;
3640 const argtype *arg_type;
992f48a0 3641 abi_long ret;
31e31b8a 3642 uint8_t buf_temp[MAX_STRUCT_SIZE];
53a5960a
PB		 3643 int target_size;
3644 void *argptr;
31e31b8a
FB		 3645
3646 ie = ioctl_entries;
3647 for(;;) {
3648 if (ie->target_cmd == 0) {
32407103 3649 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd);
0da46a6e 3650 return -TARGET_ENOSYS;
31e31b8a
FB		 3651 }
3652 if (ie->target_cmd == cmd)
3653 break;
3654 ie++;
3655 }
3656 arg_type = ie->arg_type;
9de5e440 3657#if defined(DEBUG)
32407103 3658 gemu_log("ioctl: cmd=0x%04lx (%s)\n", (long)cmd, ie->name);
72f03900 3659#endif
d2ef05bb
PM		 3660 if (ie->do_ioctl) {
3661 return ie->do_ioctl(ie, buf_temp, fd, cmd, arg);
3662 }
3663
31e31b8a
FB		 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++;
53a5960a 3676 target_size = thunk_type_size(arg_type, 0);
31e31b8a
FB		 3677 switch(ie->access) {
3678 case IOC_R:
3679 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
3680 if (!is_error(ret)) {
579a97f7
FB		 3681 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
3682 if (!argptr)
3683 return -TARGET_EFAULT;
53a5960a
PB		 3684 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
3685 unlock_user(argptr, arg, target_size);
31e31b8a
FB		 3686 }
3687 break;
3688 case IOC_W:
579a97f7
FB		 3689 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
3690 if (!argptr)
3691 return -TARGET_EFAULT;
53a5960a
PB		 3692 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
3693 unlock_user(argptr, arg, 0);
31e31b8a
FB		 3694 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
3695 break;
3696 default:
3697 case IOC_RW:
579a97f7
FB		 3698 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
3699 if (!argptr)
3700 return -TARGET_EFAULT;
53a5960a
PB		 3701 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
3702 unlock_user(argptr, arg, 0);
31e31b8a
FB		 3703 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
3704 if (!is_error(ret)) {
579a97f7
FB		 3705 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
3706 if (!argptr)
3707 return -TARGET_EFAULT;
53a5960a
PB		 3708 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
3709 unlock_user(argptr, arg, target_size);
31e31b8a
FB		 3710 }
3711 break;
3712 }
3713 break;
3714 default:
32407103
JM		 3715 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n",
3716 (long)cmd, arg_type[0]);
0da46a6e 3717 ret = -TARGET_ENOSYS;
31e31b8a
FB		 3718 break;
3719 }
3720 return ret;
3721}
3722
b39bc503 3723static const bitmask_transtbl iflag_tbl[] = {
31e31b8a
FB		 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
b39bc503 3741static const bitmask_transtbl oflag_tbl[] = {
31e31b8a
FB		 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
b39bc503 3769static const bitmask_transtbl cflag_tbl[] = {
31e31b8a
FB		 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
b39bc503 3804static const bitmask_transtbl lflag_tbl[] = {
31e31b8a
FB		 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
3823static void target_to_host_termios (void *dst, const void *src)
3824{
3825 struct host_termios *host = dst;
3826 const struct target_termios *target = src;
3b46e624 3827
5fafdf24 3828 host->c_iflag =
31e31b8a 3829 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
5fafdf24 3830 host->c_oflag =
31e31b8a 3831 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
5fafdf24 3832 host->c_cflag =
31e31b8a 3833 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
5fafdf24 3834 host->c_lflag =
31e31b8a
FB		 3835 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
3836 host->c_line = target->c_line;
3b46e624 3837
44607123 3838 memset(host->c_cc, 0, sizeof(host->c_cc));
5fafdf24
TS		 3839 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
3840 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
3b46e624 3841 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
5fafdf24 3842 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
3b46e624 3843 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
5fafdf24 3844 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
3b46e624 3845 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
5fafdf24 3846 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
3b46e624 3847 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
5fafdf24
TS		 3848 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
3849 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
3b46e624
TS		 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];
5fafdf24 3855 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
31e31b8a 3856}
3b46e624 3857
31e31b8a
FB		 3858static 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
5fafdf24 3863 target->c_iflag =
31e31b8a 3864 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
5fafdf24 3865 target->c_oflag =
31e31b8a 3866 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
5fafdf24 3867 target->c_cflag =
31e31b8a 3868 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
5fafdf24 3869 target->c_lflag =
31e31b8a
FB		 3870 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
3871 target->c_line = host->c_line;
3b46e624 3872
44607123 3873 memset(target->c_cc, 0, sizeof(target->c_cc));
31e31b8a
FB		 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
8e853dc7 3893static const StructEntry struct_termios_def = {
31e31b8a
FB		 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
5286db75
FB		 3899static 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
2ab83ea7 3911#if defined(TARGET_I386)
6dbad63e
FB		 3912
3913/* NOTE: there is really one LDT for all the threads */
b1d8e52e 3914static uint8_t *ldt_table;
6dbad63e 3915
03acab66 3916static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount)
6dbad63e
FB		 3917{
3918 int size;
53a5960a 3919 void *p;
6dbad63e
FB		 3920
3921 if (!ldt_table)
3922 return 0;
3923 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
3924 if (size > bytecount)
3925 size = bytecount;
579a97f7
FB		 3926 p = lock_user(VERIFY_WRITE, ptr, size, 0);
3927 if (!p)
03acab66 3928 return -TARGET_EFAULT;
579a97f7 3929 /* ??? Should this by byteswapped? */
53a5960a
PB		 3930 memcpy(p, ldt_table, size);
3931 unlock_user(p, ptr, size);
6dbad63e
FB		 3932 return size;
3933}
3934
3935/* XXX: add locking support */
03acab66
FB		 3936static abi_long write_ldt(CPUX86State *env,
3937 abi_ulong ptr, unsigned long bytecount, int oldmode)
6dbad63e
FB		 3938{
3939 struct target_modify_ldt_ldt_s ldt_info;
53a5960a 3940 struct target_modify_ldt_ldt_s *target_ldt_info;
6dbad63e 3941 int seg_32bit, contents, read_exec_only, limit_in_pages;
8d18e893 3942 int seg_not_present, useable, lm;
6dbad63e
FB		 3943 uint32_t *lp, entry_1, entry_2;
3944
3945 if (bytecount != sizeof(ldt_info))
03acab66 3946 return -TARGET_EINVAL;
579a97f7 3947 if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1))
03acab66 3948 return -TARGET_EFAULT;
53a5960a 3949 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
cbb21eed 3950 ldt_info.base_addr = tswapal(target_ldt_info->base_addr);
53a5960a
PB		 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);
3b46e624 3954
6dbad63e 3955 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
03acab66 3956 return -TARGET_EINVAL;
6dbad63e
FB		 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;
8d18e893
FB		 3963#ifdef TARGET_ABI32
3964 lm = 0;
3965#else
3966 lm = (ldt_info.flags >> 7) & 1;
3967#endif
6dbad63e
FB		 3968 if (contents == 3) {
3969 if (oldmode)
03acab66 3970 return -TARGET_EINVAL;
6dbad63e 3971 if (seg_not_present == 0)
03acab66 3972 return -TARGET_EINVAL;
6dbad63e
FB		 3973 }
3974 /* allocate the LDT */
3975 if (!ldt_table) {
e441570f
AZ		 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)
03acab66 3981 return -TARGET_ENOMEM;
e441570f
AZ		 3982 memset(g2h(env->ldt.base), 0,
3983 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
6dbad63e 3984 env->ldt.limit = 0xffff;
e441570f 3985 ldt_table = g2h(env->ldt.base);
6dbad63e
FB		 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 }
3b46e624 4003
6dbad63e
FB		 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) |
8d18e893 4014 (lm << 21) |
6dbad63e
FB		 4015 0x7000;
4016 if (!oldmode)
4017 entry_2 |= (useable << 20);
14ae3ba7 4018
6dbad63e
FB		 4019 /* Install the new entry ... */
4020install:
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 */
8fcd3692
BS		 4028static abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr,
4029 unsigned long bytecount)
6dbad63e 4030{
03acab66 4031 abi_long ret;
3b46e624 4032
6dbad63e
FB		 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;
03acab66
FB		 4043 default:
4044 ret = -TARGET_ENOSYS;
4045 break;
6dbad63e
FB		 4046 }
4047 return ret;
4048}
1b6b029e 4049
4583f589 4050#if defined(TARGET_I386) && defined(TARGET_ABI32)
bc22eb44 4051abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr)
8d18e893
FB		 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);
cbb21eed 4065 ldt_info.base_addr = tswapal(target_ldt_info->base_addr);
8d18e893
FB		 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 ... */
4129install:
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
8fcd3692 4136static abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr)
8d18e893
FB		 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);
cbb21eed 4176 target_ldt_info->base_addr = tswapal(base_addr);
8d18e893
FB		 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}
4583f589 4182#endif /* TARGET_I386 && TARGET_ABI32 */
8d18e893 4183
d2fd1af7 4184#ifndef TARGET_ABI32
2667e71c 4185abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr)
d2fd1af7 4186{
1add8698 4187 abi_long ret = 0;
d2fd1af7
FB		 4188 abi_ulong val;
4189 int idx;
1add8698 4190
d2fd1af7
FB		 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))
1add8698 4209 ret = -TARGET_EFAULT;
d2fd1af7
FB		 4210 break;
4211 default:
4212 ret = -TARGET_EINVAL;
4213 break;
4214 }
1add8698 4215 return ret;
d2fd1af7
FB		 4216}
4217#endif
4218
2ab83ea7
FB		 4219#endif /* defined(TARGET_I386) */
4220
05098a93 4221#define NEW_STACK_SIZE 0x40000
d865bab5 4222
d865bab5
PB		 4223
4224static pthread_mutex_t clone_lock = PTHREAD_MUTEX_INITIALIZER;
4225typedef struct {
9349b4f9 4226 CPUArchState *env;
d865bab5
PB		 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
4236static void *clone_func(void *arg)
4237{
4238 new_thread_info *info = arg;
9349b4f9 4239 CPUArchState *env;
0d34282f 4240 CPUState *cpu;
edf8e2af 4241 TaskState *ts;
d865bab5
PB		 4242
4243 env = info->env;
0d34282f 4244 cpu = ENV_GET_CPU(env);
a2247f8e 4245 thread_cpu = cpu;
0429a971 4246 ts = (TaskState *)cpu->opaque;
d865bab5 4247 info->tid = gettid();
0d34282f 4248 cpu->host_tid = info->tid;
edf8e2af 4249 task_settid(ts);
d865bab5
PB		 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}
1b6b029e 4267
0da46a6e
TS		 4268/* do_fork() Must return host values and target errnos (unlike most
4269 do_*() functions). */
9349b4f9 4270static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp,
d865bab5
PB		 4271 abi_ulong parent_tidptr, target_ulong newtls,
4272 abi_ulong child_tidptr)
1b6b029e 4273{
0429a971 4274 CPUState *cpu = ENV_GET_CPU(env);
1b6b029e 4275 int ret;
5cd4393b 4276 TaskState *ts;
0429a971 4277 CPUState *new_cpu;
9349b4f9 4278 CPUArchState *new_env;
d865bab5
PB		 4279 unsigned int nptl_flags;
4280 sigset_t sigmask;
3b46e624 4281
436d124b
AZ		 4282 /* Emulate vfork() with fork() */
4283 if (flags & CLONE_VFORK)
4284 flags &= ~(CLONE_VFORK | CLONE_VM);
4285
1b6b029e 4286 if (flags & CLONE_VM) {
0429a971 4287 TaskState *parent_ts = (TaskState *)cpu->opaque;
d865bab5
PB		 4288 new_thread_info info;
4289 pthread_attr_t attr;
24cb36a6 4290
7267c094 4291 ts = g_malloc0(sizeof(TaskState));
624f7979 4292 init_task_state(ts);
1b6b029e 4293 /* we create a new CPU instance. */
c5be9f08 4294 new_env = cpu_copy(env);
6e68e076
PB		 4295 /* Init regs that differ from the parent. */
4296 cpu_clone_regs(new_env, newsp);
0429a971
AF		 4297 new_cpu = ENV_GET_CPU(new_env);
4298 new_cpu->opaque = ts;
edf8e2af
MW		 4299 ts->bprm = parent_ts->bprm;
4300 ts->info = parent_ts->info;
d865bab5
PB		 4301 nptl_flags = flags;
4302 flags &= ~CLONE_NPTL_FLAGS2;
4303
c2764719
PB		 4304 if (nptl_flags & CLONE_CHILD_CLEARTID) {
4305 ts->child_tidptr = child_tidptr;
4306 }
4307
d865bab5
PB		 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);
48e15fc2
NF		 4325 ret = pthread_attr_setstacksize(&attr, NEW_STACK_SIZE);
4326 ret = pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
d865bab5
PB		 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);
c2764719 4333 /* TODO: Free new CPU state if thread creation failed. */
d865bab5
PB		 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);
1b6b029e
FB		 4350 } else {
4351 /* if no CLONE_VM, we consider it is a fork */
d865bab5 4352 if ((flags & ~(CSIGNAL | CLONE_NPTL_FLAGS2)) != 0)
1b6b029e 4353 return -EINVAL;
d865bab5 4354 fork_start();
1b6b029e 4355 ret = fork();
d865bab5 4356 if (ret == 0) {
2b1319c8 4357 /* Child Process. */
d865bab5
PB		 4358 cpu_clone_regs(env, newsp);
4359 fork_end(1);
2b1319c8
AJ		 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. */
d865bab5
PB		 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);
0429a971 4370 ts = (TaskState *)cpu->opaque;
d865bab5
PB		 4371 if (flags & CLONE_SETTLS)
4372 cpu_set_tls (env, newtls);
c2764719
PB		 4373 if (flags & CLONE_CHILD_CLEARTID)
4374 ts->child_tidptr = child_tidptr;
d865bab5
PB		 4375 } else {
4376 fork_end(0);
4377 }
1b6b029e
FB		 4378 }
4379 return ret;
4380}
4381
5f106811
APR		 4382/* warning : doesn't handle linux specific flags... */
4383static 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
7e22e546
UH		 4414 case TARGET_F_SETLEASE:
4415 return F_SETLEASE;
4416 case TARGET_F_GETLEASE:
4417 return F_GETLEASE;
fbd5de9b 4418#ifdef F_DUPFD_CLOEXEC
7e22e546
UH		 4419 case TARGET_F_DUPFD_CLOEXEC:
4420 return F_DUPFD_CLOEXEC;
fbd5de9b 4421#endif
7e22e546
UH		 4422 case TARGET_F_NOTIFY:
4423 return F_NOTIFY;
5f106811
APR		 4424 default:
4425 return -TARGET_EINVAL;
4426 }
4427 return -TARGET_EINVAL;
4428}
4429
2ba7f730
LV		 4430#define TRANSTBL_CONVERT(a) { -1, TARGET_##a, -1, a }
4431static 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
992f48a0 4440static abi_long do_fcntl(int fd, int cmd, abi_ulong arg)
7775e9ec
FB		 4441{
4442 struct flock fl;
53a5960a 4443 struct target_flock *target_fl;
43f238d7
TS		 4444 struct flock64 fl64;
4445 struct target_flock64 *target_fl64;
992f48a0 4446 abi_long ret;
5f106811
APR		 4447 int host_cmd = target_to_host_fcntl_cmd(cmd);
4448
4449 if (host_cmd == -TARGET_EINVAL)
4450 return host_cmd;
53a5960a 4451
7775e9ec
FB		 4452 switch(cmd) {
4453 case TARGET_F_GETLK:
579a97f7
FB		 4454 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1))
4455 return -TARGET_EFAULT;
2ba7f730
LV		 4456 fl.l_type =
4457 target_to_host_bitmask(tswap16(target_fl->l_type), flock_tbl);
5813427b 4458 fl.l_whence = tswap16(target_fl->l_whence);
cbb21eed
MB		 4459 fl.l_start = tswapal(target_fl->l_start);
4460 fl.l_len = tswapal(target_fl->l_len);
7e22e546 4461 fl.l_pid = tswap32(target_fl->l_pid);
5813427b 4462 unlock_user_struct(target_fl, arg, 0);
5f106811 4463 ret = get_errno(fcntl(fd, host_cmd, &fl));
7775e9ec 4464 if (ret == 0) {
579a97f7
FB		 4465 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg, 0))
4466 return -TARGET_EFAULT;
2ba7f730
LV		 4467 target_fl->l_type =
4468 host_to_target_bitmask(tswap16(fl.l_type), flock_tbl);
7775e9ec 4469 target_fl->l_whence = tswap16(fl.l_whence);
cbb21eed
MB		 4470 target_fl->l_start = tswapal(fl.l_start);
4471 target_fl->l_len = tswapal(fl.l_len);
7e22e546 4472 target_fl->l_pid = tswap32(fl.l_pid);
53a5960a 4473 unlock_user_struct(target_fl, arg, 1);
7775e9ec
FB		 4474 }
4475 break;
3b46e624 4476
7775e9ec
FB		 4477 case TARGET_F_SETLK:
4478 case TARGET_F_SETLKW:
579a97f7
FB		 4479 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1))
4480 return -TARGET_EFAULT;
2ba7f730
LV		 4481 fl.l_type =
4482 target_to_host_bitmask(tswap16(target_fl->l_type), flock_tbl);
7775e9ec 4483 fl.l_whence = tswap16(target_fl->l_whence);
cbb21eed
MB		 4484 fl.l_start = tswapal(target_fl->l_start);
4485 fl.l_len = tswapal(target_fl->l_len);
7e22e546 4486 fl.l_pid = tswap32(target_fl->l_pid);
53a5960a 4487 unlock_user_struct(target_fl, arg, 0);
5f106811 4488 ret = get_errno(fcntl(fd, host_cmd, &fl));
7775e9ec 4489 break;
3b46e624 4490
7775e9ec 4491 case TARGET_F_GETLK64:
579a97f7
FB		 4492 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1))
4493 return -TARGET_EFAULT;
2ba7f730
LV		 4494 fl64.l_type =
4495 target_to_host_bitmask(tswap16(target_fl64->l_type), flock_tbl) >> 1;
5813427b 4496 fl64.l_whence = tswap16(target_fl64->l_whence);
cbb21eed
MB		 4497 fl64.l_start = tswap64(target_fl64->l_start);
4498 fl64.l_len = tswap64(target_fl64->l_len);
7e22e546 4499 fl64.l_pid = tswap32(target_fl64->l_pid);
5813427b 4500 unlock_user_struct(target_fl64, arg, 0);
5f106811 4501 ret = get_errno(fcntl(fd, host_cmd, &fl64));
43f238d7 4502 if (ret == 0) {
579a97f7
FB		 4503 if (!lock_user_struct(VERIFY_WRITE, target_fl64, arg, 0))
4504 return -TARGET_EFAULT;
2ba7f730
LV		 4505 target_fl64->l_type =
4506 host_to_target_bitmask(tswap16(fl64.l_type), flock_tbl) >> 1;
43f238d7 4507 target_fl64->l_whence = tswap16(fl64.l_whence);
cbb21eed
MB		 4508 target_fl64->l_start = tswap64(fl64.l_start);
4509 target_fl64->l_len = tswap64(fl64.l_len);
7e22e546 4510 target_fl64->l_pid = tswap32(fl64.l_pid);
43f238d7
TS		 4511 unlock_user_struct(target_fl64, arg, 1);
4512 }
9ee1fa2c 4513 break;
7775e9ec
FB		 4514 case TARGET_F_SETLK64:
4515 case TARGET_F_SETLKW64:
579a97f7
FB		 4516 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1))
4517 return -TARGET_EFAULT;
2ba7f730
LV		 4518 fl64.l_type =
4519 target_to_host_bitmask(tswap16(target_fl64->l_type), flock_tbl) >> 1;
43f238d7 4520 fl64.l_whence = tswap16(target_fl64->l_whence);
cbb21eed
MB		 4521 fl64.l_start = tswap64(target_fl64->l_start);
4522 fl64.l_len = tswap64(target_fl64->l_len);
7e22e546 4523 fl64.l_pid = tswap32(target_fl64->l_pid);
43f238d7 4524 unlock_user_struct(target_fl64, arg, 0);
5f106811 4525 ret = get_errno(fcntl(fd, host_cmd, &fl64));
7775e9ec
FB		 4526 break;
4527
5f106811
APR		 4528 case TARGET_F_GETFL:
4529 ret = get_errno(fcntl(fd, host_cmd, arg));
9ee1fa2c
FB		 4530 if (ret >= 0) {
4531 ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
4532 }
ffa65c3b
FB		 4533 break;
4534
5f106811
APR		 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:
7e22e546
UH		 4543 case TARGET_F_SETLEASE:
4544 case TARGET_F_GETLEASE:
5f106811 4545 ret = get_errno(fcntl(fd, host_cmd, arg));
ffa65c3b
FB		 4546 break;
4547
7775e9ec 4548 default:
9ee1fa2c 4549 ret = get_errno(fcntl(fd, cmd, arg));
7775e9ec
FB		 4550 break;
4551 }
4552 return ret;
4553}
4554
67867308 4555#ifdef USE_UID16
7775e9ec 4556
67867308
FB		 4557static inline int high2lowuid(int uid)
4558{
4559 if (uid > 65535)
4560 return 65534;
4561 else
4562 return uid;
4563}
4564
4565static inline int high2lowgid(int gid)
4566{
4567 if (gid > 65535)
4568 return 65534;
4569 else
4570 return gid;
4571}
4572
4573static inline int low2highuid(int uid)
4574{
4575 if ((int16_t)uid == -1)
4576 return -1;
4577 else
4578 return uid;
4579}
4580
4581static inline int low2highgid(int gid)
4582{
4583 if ((int16_t)gid == -1)
4584 return -1;
4585 else
4586 return gid;
4587}
0c866a7e
RV		 4588static inline int tswapid(int id)
4589{
4590 return tswap16(id);
4591}
76ca310a
PM		 4592
4593#define put_user_id(x, gaddr) put_user_u16(x, gaddr)
4594
0c866a7e
RV		 4595#else /* !USE_UID16 */
4596static inline int high2lowuid(int uid)
4597{
4598 return uid;
4599}
4600static inline int high2lowgid(int gid)
4601{
4602 return gid;
4603}
4604static inline int low2highuid(int uid)
4605{
4606 return uid;
4607}
4608static inline int low2highgid(int gid)
4609{
4610 return gid;
4611}
4612static inline int tswapid(int id)
4613{
4614 return tswap32(id);
4615}
76ca310a
PM		 4616
4617#define put_user_id(x, gaddr) put_user_u32(x, gaddr)
4618
67867308 4619#endif /* USE_UID16 */
1b6b029e 4620
31e31b8a
FB		 4621void syscall_init(void)
4622{
2ab83ea7
FB		 4623 IOCTLEntry *ie;
4624 const argtype *arg_type;
4625 int size;
b92c47c1 4626 int i;
2ab83ea7 4627
001faf32 4628#define STRUCT(name, ...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
5fafdf24 4629#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
31e31b8a
FB		 4630#include "syscall_types.h"
4631#undef STRUCT
4632#undef STRUCT_SPECIAL
2ab83ea7 4633
dd6e957a
PM		 4634 /* Build target_to_host_errno_table[] table from
4635 * host_to_target_errno_table[]. */
4636 for (i = 0; i < ERRNO_TABLE_SIZE; i++) {
4637 target_to_host_errno_table[host_to_target_errno_table[i]] = i;
4638 }
4639
2ab83ea7
FB		 4640 /* we patch the ioctl size if necessary. We rely on the fact that
4641 no ioctl has all the bits at '1' in the size field */
4642 ie = ioctl_entries;
4643 while (ie->target_cmd != 0) {
4644 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
4645 TARGET_IOC_SIZEMASK) {
4646 arg_type = ie->arg_type;
4647 if (arg_type[0] != TYPE_PTR) {
5fafdf24 4648 fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
2ab83ea7
FB		 4649 ie->target_cmd);
4650 exit(1);
4651 }
4652 arg_type++;
4653 size = thunk_type_size(arg_type, 0);
5fafdf24 4654 ie->target_cmd = (ie->target_cmd &
2ab83ea7
FB		 4655 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
4656 (size << TARGET_IOC_SIZESHIFT);
4657 }
b92c47c1 4658
2ab83ea7 4659 /* automatic consistency check if same arch */
872ea0c0
AZ		 4660#if (defined(__i386__) && defined(TARGET_I386) && defined(TARGET_ABI32)) || \
4661 (defined(__x86_64__) && defined(TARGET_X86_64))
4662 if (unlikely(ie->target_cmd != ie->host_cmd)) {
4663 fprintf(stderr, "ERROR: ioctl(%s): target=0x%x host=0x%x\n",
4664 ie->name, ie->target_cmd, ie->host_cmd);
2ab83ea7
FB		 4665 }
4666#endif
4667 ie++;
4668 }
31e31b8a 4669}
c573ff67 4670
992f48a0 4671#if TARGET_ABI_BITS == 32
ce4defa0
PB		 4672static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
4673{
af325d36 4674#ifdef TARGET_WORDS_BIGENDIAN
ce4defa0
PB		 4675 return ((uint64_t)word0 << 32) | word1;
4676#else
4677 return ((uint64_t)word1 << 32) | word0;
4678#endif
4679}
992f48a0 4680#else /* TARGET_ABI_BITS == 32 */
32407103
JM		 4681static inline uint64_t target_offset64(uint64_t word0, uint64_t word1)
4682{
4683 return word0;
4684}
992f48a0 4685#endif /* TARGET_ABI_BITS != 32 */
ce4defa0
PB		 4686
4687#ifdef TARGET_NR_truncate64
992f48a0
BS		 4688static inline abi_long target_truncate64(void *cpu_env, const char *arg1,
4689 abi_long arg2,
4690 abi_long arg3,
4691 abi_long arg4)
ce4defa0 4692{
48e515d4 4693 if (regpairs_aligned(cpu_env)) {
ce4defa0
PB		 4694 arg2 = arg3;
4695 arg3 = arg4;
48e515d4 4696 }
ce4defa0
PB		 4697 return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
4698}
4699#endif
4700
4701#ifdef TARGET_NR_ftruncate64
992f48a0
BS		 4702static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1,
4703 abi_long arg2,
4704 abi_long arg3,
4705 abi_long arg4)
ce4defa0 4706{
48e515d4 4707 if (regpairs_aligned(cpu_env)) {
ce4defa0
PB		 4708 arg2 = arg3;
4709 arg3 = arg4;
48e515d4 4710 }
ce4defa0
PB		 4711 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
4712}
4713#endif
4714
579a97f7
FB		 4715static inline abi_long target_to_host_timespec(struct timespec *host_ts,
4716 abi_ulong target_addr)
53a5960a
PB		 4717{
4718 struct target_timespec *target_ts;
4719
579a97f7
FB		 4720 if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1))
4721 return -TARGET_EFAULT;
cbb21eed
MB		 4722 host_ts->tv_sec = tswapal(target_ts->tv_sec);
4723 host_ts->tv_nsec = tswapal(target_ts->tv_nsec);
53a5960a 4724 unlock_user_struct(target_ts, target_addr, 0);
b255bfa8 4725 return 0;
53a5960a
PB		 4726}
4727
579a97f7
FB		 4728static inline abi_long host_to_target_timespec(abi_ulong target_addr,
4729 struct timespec *host_ts)
53a5960a
PB		 4730{
4731 struct target_timespec *target_ts;
4732
579a97f7
FB		 4733 if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0))
4734 return -TARGET_EFAULT;
cbb21eed
MB		 4735 target_ts->tv_sec = tswapal(host_ts->tv_sec);
4736 target_ts->tv_nsec = tswapal(host_ts->tv_nsec);
53a5960a 4737 unlock_user_struct(target_ts, target_addr, 1);
b255bfa8 4738 return 0;
53a5960a
PB		 4739}
4740
f4f1e10a
ECL		 4741static inline abi_long target_to_host_itimerspec(struct itimerspec *host_itspec,
4742 abi_ulong target_addr)
4743{
4744 struct target_itimerspec *target_itspec;
4745
4746 if (!lock_user_struct(VERIFY_READ, target_itspec, target_addr, 1)) {
4747 return -TARGET_EFAULT;
4748 }
4749
4750 host_itspec->it_interval.tv_sec =
4751 tswapal(target_itspec->it_interval.tv_sec);
4752 host_itspec->it_interval.tv_nsec =
4753 tswapal(target_itspec->it_interval.tv_nsec);
4754 host_itspec->it_value.tv_sec = tswapal(target_itspec->it_value.tv_sec);
4755 host_itspec->it_value.tv_nsec = tswapal(target_itspec->it_value.tv_nsec);
4756
4757 unlock_user_struct(target_itspec, target_addr, 1);
4758 return 0;
4759}
4760
4761static inline abi_long host_to_target_itimerspec(abi_ulong target_addr,
4762 struct itimerspec *host_its)
4763{
4764 struct target_itimerspec *target_itspec;
4765
4766 if (!lock_user_struct(VERIFY_WRITE, target_itspec, target_addr, 0)) {
4767 return -TARGET_EFAULT;
4768 }
4769
4770 target_itspec->it_interval.tv_sec = tswapal(host_its->it_interval.tv_sec);
4771 target_itspec->it_interval.tv_nsec = tswapal(host_its->it_interval.tv_nsec);
4772
4773 target_itspec->it_value.tv_sec = tswapal(host_its->it_value.tv_sec);
4774 target_itspec->it_value.tv_nsec = tswapal(host_its->it_value.tv_nsec);
4775
4776 unlock_user_struct(target_itspec, target_addr, 0);
4777 return 0;
4778}
4779
9d33b76b 4780#if defined(TARGET_NR_stat64) || defined(TARGET_NR_newfstatat)
6a24a778
AZ		 4781static inline abi_long host_to_target_stat64(void *cpu_env,
4782 abi_ulong target_addr,
4783 struct stat *host_st)
4784{
09701199 4785#if defined(TARGET_ARM) && defined(TARGET_ABI32)
6a24a778
AZ		 4786 if (((CPUARMState *)cpu_env)->eabi) {
4787 struct target_eabi_stat64 *target_st;
4788
4789 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
4790 return -TARGET_EFAULT;
4791 memset(target_st, 0, sizeof(struct target_eabi_stat64));
4792 __put_user(host_st->st_dev, &target_st->st_dev);
4793 __put_user(host_st->st_ino, &target_st->st_ino);
4794#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
4795 __put_user(host_st->st_ino, &target_st->__st_ino);
4796#endif
4797 __put_user(host_st->st_mode, &target_st->st_mode);
4798 __put_user(host_st->st_nlink, &target_st->st_nlink);
4799 __put_user(host_st->st_uid, &target_st->st_uid);
4800 __put_user(host_st->st_gid, &target_st->st_gid);
4801 __put_user(host_st->st_rdev, &target_st->st_rdev);
4802 __put_user(host_st->st_size, &target_st->st_size);
4803 __put_user(host_st->st_blksize, &target_st->st_blksize);
4804 __put_user(host_st->st_blocks, &target_st->st_blocks);
4805 __put_user(host_st->st_atime, &target_st->target_st_atime);
4806 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
4807 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
4808 unlock_user_struct(target_st, target_addr, 1);
4809 } else
4810#endif
4811 {
20d155bc 4812#if defined(TARGET_HAS_STRUCT_STAT64)
6a24a778 4813 struct target_stat64 *target_st;
20d155bc
SW		 4814#else
4815 struct target_stat *target_st;
9d33b76b 4816#endif
6a24a778
AZ		 4817
4818 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
4819 return -TARGET_EFAULT;
9d33b76b 4820 memset(target_st, 0, sizeof(*target_st));
6a24a778
AZ		 4821 __put_user(host_st->st_dev, &target_st->st_dev);
4822 __put_user(host_st->st_ino, &target_st->st_ino);
4823#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
4824 __put_user(host_st->st_ino, &target_st->__st_ino);
4825#endif
4826 __put_user(host_st->st_mode, &target_st->st_mode);
4827 __put_user(host_st->st_nlink, &target_st->st_nlink);
4828 __put_user(host_st->st_uid, &target_st->st_uid);
4829 __put_user(host_st->st_gid, &target_st->st_gid);
4830 __put_user(host_st->st_rdev, &target_st->st_rdev);
4831 /* XXX: better use of kernel struct */
4832 __put_user(host_st->st_size, &target_st->st_size);
4833 __put_user(host_st->st_blksize, &target_st->st_blksize);
4834 __put_user(host_st->st_blocks, &target_st->st_blocks);
4835 __put_user(host_st->st_atime, &target_st->target_st_atime);
4836 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
4837 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
4838 unlock_user_struct(target_st, target_addr, 1);
4839 }
4840
4841 return 0;
4842}
4843#endif
4844
bd0c5661
PB		 4845/* ??? Using host futex calls even when target atomic operations
4846 are not really atomic probably breaks things. However implementing
4847 futexes locally would make futexes shared between multiple processes
4848 tricky. However they're probably useless because guest atomic
4849 operations won't work either. */
8fcd3692
BS		 4850static int do_futex(target_ulong uaddr, int op, int val, target_ulong timeout,
4851 target_ulong uaddr2, int val3)
bd0c5661
PB		 4852{
4853 struct timespec ts, *pts;
a16aae0c 4854 int base_op;
bd0c5661
PB		 4855
4856 /* ??? We assume FUTEX_* constants are the same on both host
4857 and target. */
a29ccd63 4858#ifdef FUTEX_CMD_MASK
a16aae0c 4859 base_op = op & FUTEX_CMD_MASK;
a29ccd63 4860#else
a16aae0c 4861 base_op = op;
a29ccd63 4862#endif
a16aae0c 4863 switch (base_op) {
bd0c5661 4864 case FUTEX_WAIT:
cce246e0 4865 case FUTEX_WAIT_BITSET:
bd0c5661
PB		 4866 if (timeout) {
4867 pts = &ts;
4868 target_to_host_timespec(pts, timeout);
4869 } else {
4870 pts = NULL;
4871 }
a29ccd63 4872 return get_errno(sys_futex(g2h(uaddr), op, tswap32(val),
cce246e0 4873 pts, NULL, val3));
bd0c5661 4874 case FUTEX_WAKE:
a29ccd63 4875 return get_errno(sys_futex(g2h(uaddr), op, val, NULL, NULL, 0));
bd0c5661 4876 case FUTEX_FD:
a29ccd63 4877 return get_errno(sys_futex(g2h(uaddr), op, val, NULL, NULL, 0));
bd0c5661 4878 case FUTEX_REQUEUE:
bd0c5661 4879 case FUTEX_CMP_REQUEUE:
a16aae0c
NF		 4880 case FUTEX_WAKE_OP:
4881 /* For FUTEX_REQUEUE, FUTEX_CMP_REQUEUE, and FUTEX_WAKE_OP, the
4882 TIMEOUT parameter is interpreted as a uint32_t by the kernel.
4883 But the prototype takes a `struct timespec *'; insert casts
4884 to satisfy the compiler. We do not need to tswap TIMEOUT
4885 since it's not compared to guest memory. */
4886 pts = (struct timespec *)(uintptr_t) timeout;
4887 return get_errno(sys_futex(g2h(uaddr), op, val, pts,
4888 g2h(uaddr2),
4889 (base_op == FUTEX_CMP_REQUEUE
4890 ? tswap32(val3)
4891 : val3)));
bd0c5661
PB		 4892 default:
4893 return -TARGET_ENOSYS;
4894 }
4895}
bd0c5661 4896
1d9d8b55
PB		 4897/* Map host to target signal numbers for the wait family of syscalls.
4898 Assume all other status bits are the same. */
a05c6409 4899int host_to_target_waitstatus(int status)
1d9d8b55
PB		 4900{
4901 if (WIFSIGNALED(status)) {
4902 return host_to_target_signal(WTERMSIG(status)) | (status & ~0x7f);
4903 }
4904 if (WIFSTOPPED(status)) {
4905 return (host_to_target_signal(WSTOPSIG(status)) << 8)
4906 | (status & 0xff);
4907 }
4908 return status;
4909}
4910
4a24a758
PM		 4911static int relstr_to_int(const char *s)
4912{
4913 /* Convert a uname release string like "2.6.18" to an integer
4914 * of the form 0x020612. (Beware that 0x020612 is *not* 2.6.12.)
4915 */
4916 int i, n, tmp;
4917
4918 tmp = 0;
4919 for (i = 0; i < 3; i++) {
4920 n = 0;
4921 while (*s >= '0' && *s <= '9') {
4922 n *= 10;
4923 n += *s - '0';
4924 s++;
4925 }
4926 tmp = (tmp << 8) + n;
4927 if (*s == '.') {
4928 s++;
4929 }
4930 }
4931 return tmp;
4932}
4933
a745ec6d
PB		 4934int get_osversion(void)
4935{
4936 static int osversion;
4937 struct new_utsname buf;
4938 const char *s;
4a24a758 4939
a745ec6d
PB		 4940 if (osversion)
4941 return osversion;
4942 if (qemu_uname_release && *qemu_uname_release) {
4943 s = qemu_uname_release;
4944 } else {
4945 if (sys_uname(&buf))
4946 return 0;
4947 s = buf.release;
4948 }
4a24a758 4949 osversion = relstr_to_int(s);
a745ec6d
PB		 4950 return osversion;
4951}
4952
4a24a758
PM		 4953void init_qemu_uname_release(void)
4954{
4955 /* Initialize qemu_uname_release for later use.
4956 * If the host kernel is too old and the user hasn't asked for
4957 * a specific fake version number, we might want to fake a minimum
4958 * target kernel version.
4959 */
4960#ifdef UNAME_MINIMUM_RELEASE
4961 struct new_utsname buf;
4962
4963 if (qemu_uname_release && *qemu_uname_release) {
4964 return;
4965 }
4966
4967 if (sys_uname(&buf)) {
4968 return;
4969 }
4970
4971 if (relstr_to_int(buf.release) < relstr_to_int(UNAME_MINIMUM_RELEASE)) {
4972 qemu_uname_release = UNAME_MINIMUM_RELEASE;
4973 }
4974#endif
4975}
36c08d49
AG		 4976
4977static int open_self_maps(void *cpu_env, int fd)
4978{
1a49ef2a 4979#if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32)
0429a971
AF		 4980 CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
4981 TaskState *ts = cpu->opaque;
1a49ef2a
AG		 4982#endif
4983 FILE *fp;
4984 char *line = NULL;
4985 size_t len = 0;
4986 ssize_t read;
4987
4988 fp = fopen("/proc/self/maps", "r");
4989 if (fp == NULL) {
4990 return -EACCES;
4991 }
36c08d49 4992
1a49ef2a
AG		 4993 while ((read = getline(&line, &len, fp)) != -1) {
4994 int fields, dev_maj, dev_min, inode;
4995 uint64_t min, max, offset;
4996 char flag_r, flag_w, flag_x, flag_p;
4997 char path[512] = "";
4998 fields = sscanf(line, "%"PRIx64"-%"PRIx64" %c%c%c%c %"PRIx64" %x:%x %d"
4999 " %512s", &min, &max, &flag_r, &flag_w, &flag_x,
5000 &flag_p, &offset, &dev_maj, &dev_min, &inode, path);
5001
5002 if ((fields < 10) || (fields > 11)) {
5003 continue;
5004 }
5005 if (!strncmp(path, "[stack]", 7)) {
5006 continue;
5007 }
5008 if (h2g_valid(min) && h2g_valid(max)) {
5009 dprintf(fd, TARGET_ABI_FMT_lx "-" TARGET_ABI_FMT_lx
e24fed4e 5010 " %c%c%c%c %08" PRIx64 " %02x:%02x %d %s%s\n",
1a49ef2a
AG		 5011 h2g(min), h2g(max), flag_r, flag_w,
5012 flag_x, flag_p, offset, dev_maj, dev_min, inode,
e24fed4e 5013 path[0] ? " " : "", path);
1a49ef2a
AG		 5014 }
5015 }
5016
5017 free(line);
5018 fclose(fp);
5019
5020#if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32)
36c08d49
AG		 5021 dprintf(fd, "%08llx-%08llx rw-p %08llx 00:00 0 [stack]\n",
5022 (unsigned long long)ts->info->stack_limit,
1bdd7c7e
AG		 5023 (unsigned long long)(ts->info->start_stack +
5024 (TARGET_PAGE_SIZE - 1)) & TARGET_PAGE_MASK,
1a49ef2a
AG		 5025 (unsigned long long)0);
5026#endif
36c08d49
AG		 5027
5028 return 0;
5029}
5030
480b8e7d
AG		 5031static int open_self_stat(void *cpu_env, int fd)
5032{
0429a971
AF		 5033 CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
5034 TaskState *ts = cpu->opaque;
480b8e7d
AG		 5035 abi_ulong start_stack = ts->info->start_stack;
5036 int i;
5037
5038 for (i = 0; i < 44; i++) {
5039 char buf[128];
5040 int len;
5041 uint64_t val = 0;
5042
e0e65bee
FE		 5043 if (i == 0) {
5044 /* pid */
5045 val = getpid();
5046 snprintf(buf, sizeof(buf), "%"PRId64 " ", val);
5047 } else if (i == 1) {
5048 /* app name */
5049 snprintf(buf, sizeof(buf), "(%s) ", ts->bprm->argv[0]);
5050 } else if (i == 27) {
5051 /* stack bottom */
5052 val = start_stack;
5053 snprintf(buf, sizeof(buf), "%"PRId64 " ", val);
5054 } else {
5055 /* for the rest, there is MasterCard */
5056 snprintf(buf, sizeof(buf), "0%c", i == 43 ? '\n' : ' ');
480b8e7d 5057 }
e0e65bee 5058
480b8e7d
AG		 5059 len = strlen(buf);
5060 if (write(fd, buf, len) != len) {
5061 return -1;
5062 }
5063 }
5064
5065 return 0;
5066}
5067
257450ee
AG		 5068static int open_self_auxv(void *cpu_env, int fd)
5069{
0429a971
AF		 5070 CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
5071 TaskState *ts = cpu->opaque;
257450ee
AG		 5072 abi_ulong auxv = ts->info->saved_auxv;
5073 abi_ulong len = ts->info->auxv_len;
5074 char *ptr;
5075
5076 /*
5077 * Auxiliary vector is stored in target process stack.
5078 * read in whole auxv vector and copy it to file
5079 */
5080 ptr = lock_user(VERIFY_READ, auxv, len, 0);
5081 if (ptr != NULL) {
5082 while (len > 0) {
5083 ssize_t r;
5084 r = write(fd, ptr, len);
5085 if (r <= 0) {
5086 break;
5087 }
5088 len -= r;
5089 ptr += r;
5090 }
5091 lseek(fd, 0, SEEK_SET);
5092 unlock_user(ptr, auxv, len);
5093 }
5094
5095 return 0;
5096}
5097
463d8e73
AS		 5098static int is_proc_myself(const char *filename, const char *entry)
5099{
5100 if (!strncmp(filename, "/proc/", strlen("/proc/"))) {
5101 filename += strlen("/proc/");
5102 if (!strncmp(filename, "self/", strlen("self/"))) {
5103 filename += strlen("self/");
5104 } else if (*filename >= '1' && *filename <= '9') {
5105 char myself[80];
5106 snprintf(myself, sizeof(myself), "%d/", getpid());
5107 if (!strncmp(filename, myself, strlen(myself))) {
5108 filename += strlen(myself);
5109 } else {
5110 return 0;
5111 }
5112 } else {
5113 return 0;
5114 }
5115 if (!strcmp(filename, entry)) {
5116 return 1;
5117 }
5118 }
5119 return 0;
5120}
5121
de6b9933
LV		 5122#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
5123static int is_proc(const char *filename, const char *entry)
5124{
5125 return strcmp(filename, entry) == 0;
5126}
5127
5128static int open_net_route(void *cpu_env, int fd)
5129{
5130 FILE *fp;
5131 char *line = NULL;
5132 size_t len = 0;
5133 ssize_t read;
5134
5135 fp = fopen("/proc/net/route", "r");
5136 if (fp == NULL) {
5137 return -EACCES;
5138 }
5139
5140 /* read header */
5141
5142 read = getline(&line, &len, fp);
5143 dprintf(fd, "%s", line);
5144
5145 /* read routes */
5146
5147 while ((read = getline(&line, &len, fp)) != -1) {
5148 char iface[16];
5149 uint32_t dest, gw, mask;
5150 unsigned int flags, refcnt, use, metric, mtu, window, irtt;
5151 sscanf(line, "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n",
5152 iface, &dest, &gw, &flags, &refcnt, &use, &metric,
5153 &mask, &mtu, &window, &irtt);
5154 dprintf(fd, "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n",
5155 iface, tswap32(dest), tswap32(gw), flags, refcnt, use,
5156 metric, tswap32(mask), mtu, window, irtt);
5157 }
5158
5159 free(line);
5160 fclose(fp);
5161
5162 return 0;
5163}
5164#endif
5165
3be14d05
AG		 5166static int do_open(void *cpu_env, const char *pathname, int flags, mode_t mode)
5167{
5168 struct fake_open {
5169 const char *filename;
5170 int (*fill)(void *cpu_env, int fd);
de6b9933 5171 int (*cmp)(const char *s1, const char *s2);
3be14d05
AG		 5172 };
5173 const struct fake_open *fake_open;
5174 static const struct fake_open fakes[] = {
de6b9933
LV		 5175 { "maps", open_self_maps, is_proc_myself },
5176 { "stat", open_self_stat, is_proc_myself },
5177 { "auxv", open_self_auxv, is_proc_myself },
5178#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
5179 { "/proc/net/route", open_net_route, is_proc },
5180#endif
5181 { NULL, NULL, NULL }
3be14d05
AG		 5182 };
5183
5184 for (fake_open = fakes; fake_open->filename; fake_open++) {
de6b9933 5185 if (fake_open->cmp(pathname, fake_open->filename)) {
3be14d05
AG		 5186 break;
5187 }
5188 }
5189
5190 if (fake_open->filename) {
5191 const char *tmpdir;
5192 char filename[PATH_MAX];
5193 int fd, r;
5194
5195 /* create temporary file to map stat to */
5196 tmpdir = getenv("TMPDIR");
5197 if (!tmpdir)
5198 tmpdir = "/tmp";
5199 snprintf(filename, sizeof(filename), "%s/qemu-open.XXXXXX", tmpdir);
5200 fd = mkstemp(filename);
5201 if (fd < 0) {
5202 return fd;
5203 }
5204 unlink(filename);
5205
5206 if ((r = fake_open->fill(cpu_env, fd))) {
5207 close(fd);
5208 return r;
5209 }
5210 lseek(fd, 0, SEEK_SET);
5211
5212 return fd;
5213 }
5214
5215 return get_errno(open(path(pathname), flags, mode));
5216}
5217
0da46a6e
TS		 5218/* do_syscall() should always have a single exit point at the end so
5219 that actions, such as logging of syscall results, can be performed.
5220 All errnos that do_syscall() returns must be -TARGET_<errcode>. */
992f48a0
BS		 5221abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
5222 abi_long arg2, abi_long arg3, abi_long arg4,
5945cfcb
PM		 5223 abi_long arg5, abi_long arg6, abi_long arg7,
5224 abi_long arg8)
31e31b8a 5225{
182735ef 5226 CPUState *cpu = ENV_GET_CPU(cpu_env);
992f48a0 5227 abi_long ret;
31e31b8a 5228 struct stat st;
56c8f68f 5229 struct statfs stfs;
53a5960a 5230 void *p;
3b46e624 5231
72f03900 5232#ifdef DEBUG
c573ff67 5233 gemu_log("syscall %d", num);
72f03900 5234#endif
b92c47c1
TS		 5235 if(do_strace)
5236 print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6);
5237
31e31b8a
FB		 5238 switch(num) {
5239 case TARGET_NR_exit:
9b056fcc
AF		 5240 /* In old applications this may be used to implement _exit(2).
5241 However in threaded applictions it is used for thread termination,
5242 and _exit_group is used for application termination.
5243 Do thread termination if we have more then one thread. */
5244 /* FIXME: This probably breaks if a signal arrives. We should probably
5245 be disabling signals. */
bdc44640 5246 if (CPU_NEXT(first_cpu)) {
9b056fcc 5247 TaskState *ts;
9b056fcc
AF		 5248
5249 cpu_list_lock();
9b056fcc 5250 /* Remove the CPU from the list. */
bdc44640 5251 QTAILQ_REMOVE(&cpus, cpu, node);
9b056fcc 5252 cpu_list_unlock();
0429a971 5253 ts = cpu->opaque;
9b056fcc
AF		 5254 if (ts->child_tidptr) {
5255 put_user_u32(0, ts->child_tidptr);
5256 sys_futex(g2h(ts->child_tidptr), FUTEX_WAKE, INT_MAX,
5257 NULL, NULL, 0);
5258 }
a2247f8e 5259 thread_cpu = NULL;
0429a971 5260 object_unref(OBJECT(cpu));
9b056fcc
AF		 5261 g_free(ts);
5262 pthread_exit(NULL);
5263 }
9788c9ca 5264#ifdef TARGET_GPROF
7d13299d
FB		 5265 _mcleanup();
5266#endif
e9009676 5267 gdb_exit(cpu_env, arg1);
c2764719 5268 _exit(arg1);
31e31b8a
FB		 5269 ret = 0; /* avoid warning */
5270 break;
5271 case TARGET_NR_read:
38d840e6
AJ		 5272 if (arg3 == 0)
5273 ret = 0;
5274 else {
5275 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
5276 goto efault;
5277 ret = get_errno(read(arg1, p, arg3));
5278 unlock_user(p, arg2, ret);
5279 }
31e31b8a
FB		 5280 break;
5281 case TARGET_NR_write:
579a97f7
FB		 5282 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
5283 goto efault;
53a5960a
PB		 5284 ret = get_errno(write(arg1, p, arg3));
5285 unlock_user(p, arg2, 0);
31e31b8a
FB		 5286 break;
5287 case TARGET_NR_open:
2f619698
FB		 5288 if (!(p = lock_user_string(arg1)))
5289 goto efault;
3be14d05
AG		 5290 ret = get_errno(do_open(cpu_env, p,
5291 target_to_host_bitmask(arg2, fcntl_flags_tbl),
5292 arg3));
53a5960a 5293 unlock_user(p, arg1, 0);
31e31b8a 5294 break;
82424832
TS		 5295#if defined(TARGET_NR_openat) && defined(__NR_openat)
5296 case TARGET_NR_openat:
579a97f7
FB		 5297 if (!(p = lock_user_string(arg2)))
5298 goto efault;
5299 ret = get_errno(sys_openat(arg1,
5300 path(p),
5301 target_to_host_bitmask(arg3, fcntl_flags_tbl),
5302 arg4));
5303 unlock_user(p, arg2, 0);
82424832
TS		 5304 break;
5305#endif
31e31b8a
FB		 5306 case TARGET_NR_close:
5307 ret = get_errno(close(arg1));
5308 break;
5309 case TARGET_NR_brk:
53a5960a 5310 ret = do_brk(arg1);
31e31b8a
FB		 5311 break;
5312 case TARGET_NR_fork:
d865bab5 5313 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0, 0, 0, 0));
31e31b8a 5314 break;
e5febef5 5315#ifdef TARGET_NR_waitpid
31e31b8a
FB		 5316 case TARGET_NR_waitpid:
5317 {
53a5960a
PB		 5318 int status;
5319 ret = get_errno(waitpid(arg1, &status, arg3));
5379557b 5320 if (!is_error(ret) && arg2 && ret
1d9d8b55 5321 && put_user_s32(host_to_target_waitstatus(status), arg2))
2f619698 5322 goto efault;
31e31b8a
FB		 5323 }
5324 break;
e5febef5 5325#endif
f0cbb613
PB		 5326#ifdef TARGET_NR_waitid
5327 case TARGET_NR_waitid:
5328 {
5329 siginfo_t info;
5330 info.si_pid = 0;
5331 ret = get_errno(waitid(arg1, arg2, &info, arg4));
5332 if (!is_error(ret) && arg3 && info.si_pid != 0) {
c227f099 5333 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_siginfo_t), 0)))
f0cbb613
PB		 5334 goto efault;
5335 host_to_target_siginfo(p, &info);
c227f099 5336 unlock_user(p, arg3, sizeof(target_siginfo_t));
f0cbb613
PB		 5337 }
5338 }
5339 break;
5340#endif
7a3148a9 5341#ifdef TARGET_NR_creat /* not on alpha */
31e31b8a 5342 case TARGET_NR_creat:
579a97f7
FB		 5343 if (!(p = lock_user_string(arg1)))
5344 goto efault;
53a5960a
PB		 5345 ret = get_errno(creat(p, arg2));
5346 unlock_user(p, arg1, 0);
31e31b8a 5347 break;
7a3148a9 5348#endif
31e31b8a 5349 case TARGET_NR_link:
53a5960a
PB		 5350 {
5351 void * p2;
5352 p = lock_user_string(arg1);
5353 p2 = lock_user_string(arg2);
579a97f7
FB		 5354 if (!p || !p2)
5355 ret = -TARGET_EFAULT;
5356 else
5357 ret = get_errno(link(p, p2));
53a5960a
PB		 5358 unlock_user(p2, arg2, 0);
5359 unlock_user(p, arg1, 0);
5360 }
31e31b8a 5361 break;
c0d472b1 5362#if defined(TARGET_NR_linkat)
64f0ce4c 5363 case TARGET_NR_linkat:
64f0ce4c
TS		 5364 {
5365 void * p2 = NULL;
579a97f7
FB		 5366 if (!arg2 || !arg4)
5367 goto efault;
64f0ce4c
TS		 5368 p = lock_user_string(arg2);
5369 p2 = lock_user_string(arg4);
579a97f7 5370 if (!p || !p2)
0da46a6e 5371 ret = -TARGET_EFAULT;
64f0ce4c 5372 else
c0d472b1 5373 ret = get_errno(linkat(arg1, p, arg3, p2, arg5));
579a97f7
FB		 5374 unlock_user(p, arg2, 0);
5375 unlock_user(p2, arg4, 0);
64f0ce4c
TS		 5376 }
5377 break;
5378#endif
31e31b8a 5379 case TARGET_NR_unlink:
579a97f7
FB		 5380 if (!(p = lock_user_string(arg1)))
5381 goto efault;
53a5960a
PB		 5382 ret = get_errno(unlink(p));
5383 unlock_user(p, arg1, 0);
31e31b8a 5384 break;
c0d472b1 5385#if defined(TARGET_NR_unlinkat)
8170f56b 5386 case TARGET_NR_unlinkat:
579a97f7
FB		 5387 if (!(p = lock_user_string(arg2)))
5388 goto efault;
c0d472b1 5389 ret = get_errno(unlinkat(arg1, p, arg3));
579a97f7 5390 unlock_user(p, arg2, 0);
ed494d87 5391 break;
b7d35e65 5392#endif
31e31b8a 5393 case TARGET_NR_execve:
7854b056
FB		 5394 {
5395 char **argp, **envp;
f7341ff4 5396 int argc, envc;
992f48a0
BS		 5397 abi_ulong gp;
5398 abi_ulong guest_argp;
5399 abi_ulong guest_envp;
5400 abi_ulong addr;
7854b056 5401 char **q;
a6f79cc9 5402 int total_size = 0;
7854b056 5403
f7341ff4 5404 argc = 0;
53a5960a 5405 guest_argp = arg2;
da94d263 5406 for (gp = guest_argp; gp; gp += sizeof(abi_ulong)) {
03aa1976 5407 if (get_user_ual(addr, gp))
2f619698 5408 goto efault;
03aa1976 5409 if (!addr)
2f619698 5410 break;
7854b056 5411 argc++;
2f619698 5412 }
f7341ff4 5413 envc = 0;
53a5960a 5414 guest_envp = arg3;
da94d263 5415 for (gp = guest_envp; gp; gp += sizeof(abi_ulong)) {
03aa1976 5416 if (get_user_ual(addr, gp))
2f619698 5417 goto efault;
03aa1976 5418 if (!addr)
2f619698 5419 break;
7854b056 5420 envc++;
2f619698 5421 }
7854b056 5422
f7341ff4
FB		 5423 argp = alloca((argc + 1) * sizeof(void *));
5424 envp = alloca((envc + 1) * sizeof(void *));
7854b056 5425
da94d263 5426 for (gp = guest_argp, q = argp; gp;
992f48a0 5427 gp += sizeof(abi_ulong), q++) {
2f619698
FB		 5428 if (get_user_ual(addr, gp))
5429 goto execve_efault;
53a5960a
PB		 5430 if (!addr)
5431 break;
2f619698
FB		 5432 if (!(*q = lock_user_string(addr)))
5433 goto execve_efault;
a6f79cc9 5434 total_size += strlen(*q) + 1;
53a5960a 5435 }
f7341ff4
FB		 5436 *q = NULL;
5437
da94d263 5438 for (gp = guest_envp, q = envp; gp;
992f48a0 5439 gp += sizeof(abi_ulong), q++) {
2f619698
FB		 5440 if (get_user_ual(addr, gp))
5441 goto execve_efault;
53a5960a
PB		 5442 if (!addr)
5443 break;
2f619698
FB		 5444 if (!(*q = lock_user_string(addr)))
5445 goto execve_efault;
a6f79cc9 5446 total_size += strlen(*q) + 1;
53a5960a 5447 }
f7341ff4 5448 *q = NULL;
7854b056 5449
a6f79cc9
UH		 5450 /* This case will not be caught by the host's execve() if its
5451 page size is bigger than the target's. */
5452 if (total_size > MAX_ARG_PAGES * TARGET_PAGE_SIZE) {
5453 ret = -TARGET_E2BIG;
5454 goto execve_end;
5455 }
2f619698
FB		 5456 if (!(p = lock_user_string(arg1)))
5457 goto execve_efault;
53a5960a
PB		 5458 ret = get_errno(execve(p, argp, envp));
5459 unlock_user(p, arg1, 0);
5460
2f619698
FB		 5461 goto execve_end;
5462
5463 execve_efault:
5464 ret = -TARGET_EFAULT;
5465
5466 execve_end:
53a5960a 5467 for (gp = guest_argp, q = argp; *q;
992f48a0 5468 gp += sizeof(abi_ulong), q++) {
2f619698
FB		 5469 if (get_user_ual(addr, gp)
5470 || !addr)
5471 break;
53a5960a
PB		 5472 unlock_user(*q, addr, 0);
5473 }
5474 for (gp = guest_envp, q = envp; *q;
992f48a0 5475 gp += sizeof(abi_ulong), q++) {
2f619698
FB		 5476 if (get_user_ual(addr, gp)
5477 || !addr)
5478 break;
53a5960a
PB		 5479 unlock_user(*q, addr, 0);
5480 }
7854b056 5481 }
31e31b8a
FB		 5482 break;
5483 case TARGET_NR_chdir:
579a97f7
FB		 5484 if (!(p = lock_user_string(arg1)))
5485 goto efault;
53a5960a
PB		 5486 ret = get_errno(chdir(p));
5487 unlock_user(p, arg1, 0);
31e31b8a 5488 break;
a315a145 5489#ifdef TARGET_NR_time
31e31b8a
FB		 5490 case TARGET_NR_time:
5491 {
53a5960a
PB		 5492 time_t host_time;
5493 ret = get_errno(time(&host_time));
2f619698
FB		 5494 if (!is_error(ret)
5495 && arg1
5496 && put_user_sal(host_time, arg1))
5497 goto efault;
31e31b8a
FB		 5498 }
5499 break;
a315a145 5500#endif
31e31b8a 5501 case TARGET_NR_mknod:
579a97f7
FB		 5502 if (!(p = lock_user_string(arg1)))
5503 goto efault;
53a5960a
PB		 5504 ret = get_errno(mknod(p, arg2, arg3));
5505 unlock_user(p, arg1, 0);
31e31b8a 5506 break;
c0d472b1 5507#if defined(TARGET_NR_mknodat)
75ac37a0 5508 case TARGET_NR_mknodat:
579a97f7
FB		 5509 if (!(p = lock_user_string(arg2)))
5510 goto efault;
c0d472b1 5511 ret = get_errno(mknodat(arg1, p, arg3, arg4));
579a97f7 5512 unlock_user(p, arg2, 0);
75ac37a0
TS		 5513 break;
5514#endif
31e31b8a 5515 case TARGET_NR_chmod:
579a97f7
FB		 5516 if (!(p = lock_user_string(arg1)))
5517 goto efault;
53a5960a
PB		 5518 ret = get_errno(chmod(p, arg2));
5519 unlock_user(p, arg1, 0);
31e31b8a 5520 break;
ebc05488 5521#ifdef TARGET_NR_break
31e31b8a
FB		 5522 case TARGET_NR_break:
5523 goto unimplemented;
ebc05488
FB		 5524#endif
5525#ifdef TARGET_NR_oldstat
31e31b8a
FB		 5526 case TARGET_NR_oldstat:
5527 goto unimplemented;
ebc05488 5528#endif
31e31b8a
FB		 5529 case TARGET_NR_lseek:
5530 ret = get_errno(lseek(arg1, arg2, arg3));
5531 break;
9231733a
RH		 5532#if defined(TARGET_NR_getxpid) && defined(TARGET_ALPHA)
5533 /* Alpha specific */
7a3148a9 5534 case TARGET_NR_getxpid:
9231733a
RH		 5535 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = getppid();
5536 ret = get_errno(getpid());
5537 break;
7a3148a9 5538#endif
9231733a
RH		 5539#ifdef TARGET_NR_getpid
5540 case TARGET_NR_getpid:
31e31b8a
FB		 5541 ret = get_errno(getpid());
5542 break;
9231733a 5543#endif
31e31b8a 5544 case TARGET_NR_mount:
80265918
TS		 5545 {
5546 /* need to look at the data field */
5547 void *p2, *p3;
5548 p = lock_user_string(arg1);
5549 p2 = lock_user_string(arg2);
5550 p3 = lock_user_string(arg3);
579a97f7
FB		 5551 if (!p || !p2 || !p3)
5552 ret = -TARGET_EFAULT;
dab46405 5553 else {
579a97f7
FB		 5554 /* FIXME - arg5 should be locked, but it isn't clear how to
5555 * do that since it's not guaranteed to be a NULL-terminated
5556 * string.
5557 */
dab46405
JSM		 5558 if ( ! arg5 )
5559 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, NULL));
5560 else
5561 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, g2h(arg5)));
5562 }
579a97f7
FB		 5563 unlock_user(p, arg1, 0);
5564 unlock_user(p2, arg2, 0);
5565 unlock_user(p3, arg3, 0);
80265918
TS		 5566 break;
5567 }
e5febef5 5568#ifdef TARGET_NR_umount
31e31b8a 5569 case TARGET_NR_umount:
579a97f7
FB		 5570 if (!(p = lock_user_string(arg1)))
5571 goto efault;
53a5960a
PB		 5572 ret = get_errno(umount(p));
5573 unlock_user(p, arg1, 0);
31e31b8a 5574 break;
e5febef5 5575#endif
7a3148a9 5576#ifdef TARGET_NR_stime /* not on alpha */
31e31b8a
FB		 5577 case TARGET_NR_stime:
5578 {
53a5960a 5579 time_t host_time;
2f619698
FB		 5580 if (get_user_sal(host_time, arg1))
5581 goto efault;
53a5960a 5582 ret = get_errno(stime(&host_time));
31e31b8a
FB		 5583 }
5584 break;
7a3148a9 5585#endif
31e31b8a
FB		 5586 case TARGET_NR_ptrace:
5587 goto unimplemented;
7a3148a9 5588#ifdef TARGET_NR_alarm /* not on alpha */
31e31b8a
FB		 5589 case TARGET_NR_alarm:
5590 ret = alarm(arg1);
5591 break;
7a3148a9 5592#endif
ebc05488 5593#ifdef TARGET_NR_oldfstat
31e31b8a
FB		 5594 case TARGET_NR_oldfstat:
5595 goto unimplemented;
ebc05488 5596#endif
7a3148a9 5597#ifdef TARGET_NR_pause /* not on alpha */
31e31b8a
FB		 5598 case TARGET_NR_pause:
5599 ret = get_errno(pause());
5600 break;
7a3148a9 5601#endif
e5febef5 5602#ifdef TARGET_NR_utime
31e31b8a 5603 case TARGET_NR_utime:
ebc05488 5604 {
53a5960a
PB		 5605 struct utimbuf tbuf, *host_tbuf;
5606 struct target_utimbuf *target_tbuf;
5607 if (arg2) {
579a97f7
FB		 5608 if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1))
5609 goto efault;
cbb21eed
MB		 5610 tbuf.actime = tswapal(target_tbuf->actime);
5611 tbuf.modtime = tswapal(target_tbuf->modtime);
53a5960a
PB		 5612 unlock_user_struct(target_tbuf, arg2, 0);
5613 host_tbuf = &tbuf;
f72e8ff4 5614 } else {
53a5960a 5615 host_tbuf = NULL;
f72e8ff4 5616 }
579a97f7
FB		 5617 if (!(p = lock_user_string(arg1)))
5618 goto efault;
53a5960a
PB		 5619 ret = get_errno(utime(p, host_tbuf));
5620 unlock_user(p, arg1, 0);
ebc05488
FB		 5621 }
5622 break;
e5febef5 5623#endif
978a66ff
FB		 5624 case TARGET_NR_utimes:
5625 {
978a66ff 5626 struct timeval *tvp, tv[2];
53a5960a 5627 if (arg2) {
788f5ec4
TS		 5628 if (copy_from_user_timeval(&tv[0], arg2)
5629 || copy_from_user_timeval(&tv[1],
5630 arg2 + sizeof(struct target_timeval)))
5631 goto efault;
978a66ff
FB		 5632 tvp = tv;
5633 } else {
5634 tvp = NULL;
5635 }
579a97f7
FB		 5636 if (!(p = lock_user_string(arg1)))
5637 goto efault;
53a5960a
PB		 5638 ret = get_errno(utimes(p, tvp));
5639 unlock_user(p, arg1, 0);
978a66ff
FB		 5640 }
5641 break;
c0d472b1 5642#if defined(TARGET_NR_futimesat)
ac8a6556
AZ		 5643 case TARGET_NR_futimesat:
5644 {
5645 struct timeval *tvp, tv[2];
5646 if (arg3) {
5647 if (copy_from_user_timeval(&tv[0], arg3)
5648 || copy_from_user_timeval(&tv[1],
5649 arg3 + sizeof(struct target_timeval)))
5650 goto efault;
5651 tvp = tv;
5652 } else {
5653 tvp = NULL;
5654 }
5655 if (!(p = lock_user_string(arg2)))
5656 goto efault;
c0d472b1 5657 ret = get_errno(futimesat(arg1, path(p), tvp));
ac8a6556
AZ		 5658 unlock_user(p, arg2, 0);
5659 }
5660 break;
5661#endif
ebc05488 5662#ifdef TARGET_NR_stty
31e31b8a
FB		 5663 case TARGET_NR_stty:
5664 goto unimplemented;
ebc05488
FB		 5665#endif
5666#ifdef TARGET_NR_gtty
31e31b8a
FB		 5667 case TARGET_NR_gtty:
5668 goto unimplemented;
ebc05488 5669#endif
31e31b8a 5670 case TARGET_NR_access:
579a97f7
FB		 5671 if (!(p = lock_user_string(arg1)))
5672 goto efault;
719f908e 5673 ret = get_errno(access(path(p), arg2));
53a5960a 5674 unlock_user(p, arg1, 0);
31e31b8a 5675 break;
92a34c10
TS		 5676#if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
5677 case TARGET_NR_faccessat:
579a97f7
FB		 5678 if (!(p = lock_user_string(arg2)))
5679 goto efault;
c0d472b1 5680 ret = get_errno(faccessat(arg1, p, arg3, 0));
579a97f7 5681 unlock_user(p, arg2, 0);
92a34c10
TS		 5682 break;
5683#endif
7a3148a9 5684#ifdef TARGET_NR_nice /* not on alpha */
31e31b8a
FB		 5685 case TARGET_NR_nice:
5686 ret = get_errno(nice(arg1));
5687 break;
7a3148a9 5688#endif
ebc05488 5689#ifdef TARGET_NR_ftime
31e31b8a
FB		 5690 case TARGET_NR_ftime:
5691 goto unimplemented;
ebc05488 5692#endif
31e31b8a 5693 case TARGET_NR_sync:
04369ff2
FB		 5694 sync();
5695 ret = 0;
31e31b8a
FB		 5696 break;
5697 case TARGET_NR_kill:
4cb05961 5698 ret = get_errno(kill(arg1, target_to_host_signal(arg2)));
31e31b8a
FB		 5699 break;
5700 case TARGET_NR_rename:
53a5960a
PB		 5701 {
5702 void *p2;
5703 p = lock_user_string(arg1);
5704 p2 = lock_user_string(arg2);
579a97f7
FB		 5705 if (!p || !p2)
5706 ret = -TARGET_EFAULT;
5707 else
5708 ret = get_errno(rename(p, p2));
53a5960a
PB		 5709 unlock_user(p2, arg2, 0);
5710 unlock_user(p, arg1, 0);
5711 }
31e31b8a 5712 break;
c0d472b1 5713#if defined(TARGET_NR_renameat)
722183f6 5714 case TARGET_NR_renameat:
722183f6 5715 {
579a97f7 5716 void *p2;
722183f6
TS		 5717 p = lock_user_string(arg2);
5718 p2 = lock_user_string(arg4);
579a97f7 5719 if (!p || !p2)
0da46a6e 5720 ret = -TARGET_EFAULT;
722183f6 5721 else
c0d472b1 5722 ret = get_errno(renameat(arg1, p, arg3, p2));
579a97f7
FB		 5723 unlock_user(p2, arg4, 0);
5724 unlock_user(p, arg2, 0);
722183f6
TS		 5725 }
5726 break;
5727#endif
31e31b8a 5728 case TARGET_NR_mkdir:
579a97f7
FB		 5729 if (!(p = lock_user_string(arg1)))
5730 goto efault;
53a5960a
PB		 5731 ret = get_errno(mkdir(p, arg2));
5732 unlock_user(p, arg1, 0);
31e31b8a 5733 break;
c0d472b1 5734#if defined(TARGET_NR_mkdirat)
4472ad0d 5735 case TARGET_NR_mkdirat:
579a97f7
FB		 5736 if (!(p = lock_user_string(arg2)))
5737 goto efault;
c0d472b1 5738 ret = get_errno(mkdirat(arg1, p, arg3));
579a97f7 5739 unlock_user(p, arg2, 0);
4472ad0d
TS		 5740 break;
5741#endif
31e31b8a 5742 case TARGET_NR_rmdir:
579a97f7
FB		 5743 if (!(p = lock_user_string(arg1)))
5744 goto efault;
53a5960a
PB		 5745 ret = get_errno(rmdir(p));
5746 unlock_user(p, arg1, 0);
31e31b8a
FB		 5747 break;
5748 case TARGET_NR_dup:
5749 ret = get_errno(dup(arg1));
5750 break;
5751 case TARGET_NR_pipe:
fb41a66e 5752 ret = do_pipe(cpu_env, arg1, 0, 0);
099d6b0f
RV		 5753 break;
5754#ifdef TARGET_NR_pipe2
5755 case TARGET_NR_pipe2:
e7ea6cbe
RH		 5756 ret = do_pipe(cpu_env, arg1,
5757 target_to_host_bitmask(arg2, fcntl_flags_tbl), 1);
31e31b8a 5758 break;
099d6b0f 5759#endif
31e31b8a 5760 case TARGET_NR_times:
32f36bce 5761 {
53a5960a 5762 struct target_tms *tmsp;
32f36bce
FB		 5763 struct tms tms;
5764 ret = get_errno(times(&tms));
53a5960a 5765 if (arg1) {
579a97f7
FB		 5766 tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0);
5767 if (!tmsp)
5768 goto efault;
cbb21eed
MB		 5769 tmsp->tms_utime = tswapal(host_to_target_clock_t(tms.tms_utime));
5770 tmsp->tms_stime = tswapal(host_to_target_clock_t(tms.tms_stime));
5771 tmsp->tms_cutime = tswapal(host_to_target_clock_t(tms.tms_cutime));
5772 tmsp->tms_cstime = tswapal(host_to_target_clock_t(tms.tms_cstime));
32f36bce 5773 }
c596ed17
FB		 5774 if (!is_error(ret))
5775 ret = host_to_target_clock_t(ret);
32f36bce
FB		 5776 }
5777 break;
ebc05488 5778#ifdef TARGET_NR_prof
31e31b8a
FB		 5779 case TARGET_NR_prof:
5780 goto unimplemented;
ebc05488 5781#endif
e5febef5 5782#ifdef TARGET_NR_signal
31e31b8a
FB		 5783 case TARGET_NR_signal:
5784 goto unimplemented;
e5febef5 5785#endif
31e31b8a 5786 case TARGET_NR_acct:
38d840e6
AJ		 5787 if (arg1 == 0) {
5788 ret = get_errno(acct(NULL));
5789 } else {
5790 if (!(p = lock_user_string(arg1)))
5791 goto efault;
5792 ret = get_errno(acct(path(p)));
5793 unlock_user(p, arg1, 0);
5794 }
24836689 5795 break;
8070e7be 5796#ifdef TARGET_NR_umount2
31e31b8a 5797 case TARGET_NR_umount2:
579a97f7
FB		 5798 if (!(p = lock_user_string(arg1)))
5799 goto efault;
53a5960a
PB		 5800 ret = get_errno(umount2(p, arg2));
5801 unlock_user(p, arg1, 0);
31e31b8a 5802 break;
7a3148a9 5803#endif
ebc05488 5804#ifdef TARGET_NR_lock
31e31b8a
FB		 5805 case TARGET_NR_lock:
5806 goto unimplemented;
ebc05488 5807#endif
31e31b8a
FB		 5808 case TARGET_NR_ioctl:
5809 ret = do_ioctl(arg1, arg2, arg3);
5810 break;
5811 case TARGET_NR_fcntl:
9ee1fa2c 5812 ret = do_fcntl(arg1, arg2, arg3);
31e31b8a 5813 break;
ebc05488 5814#ifdef TARGET_NR_mpx
31e31b8a
FB		 5815 case TARGET_NR_mpx:
5816 goto unimplemented;
ebc05488 5817#endif
31e31b8a
FB		 5818 case TARGET_NR_setpgid:
5819 ret = get_errno(setpgid(arg1, arg2));
5820 break;
ebc05488 5821#ifdef TARGET_NR_ulimit
31e31b8a
FB		 5822 case TARGET_NR_ulimit:
5823 goto unimplemented;
ebc05488
FB		 5824#endif
5825#ifdef TARGET_NR_oldolduname
31e31b8a
FB		 5826 case TARGET_NR_oldolduname:
5827 goto unimplemented;
ebc05488 5828#endif
31e31b8a
FB		 5829 case TARGET_NR_umask:
5830 ret = get_errno(umask(arg1));
5831 break;
5832 case TARGET_NR_chroot:
579a97f7
FB		 5833 if (!(p = lock_user_string(arg1)))
5834 goto efault;
53a5960a
PB		 5835 ret = get_errno(chroot(p));
5836 unlock_user(p, arg1, 0);
31e31b8a
FB		 5837 break;
5838 case TARGET_NR_ustat:
5839 goto unimplemented;
5840 case TARGET_NR_dup2:
5841 ret = get_errno(dup2(arg1, arg2));
5842 break;
d0927938
UH		 5843#if defined(CONFIG_DUP3) && defined(TARGET_NR_dup3)
5844 case TARGET_NR_dup3:
5845 ret = get_errno(dup3(arg1, arg2, arg3));
5846 break;
5847#endif
7a3148a9 5848#ifdef TARGET_NR_getppid /* not on alpha */
31e31b8a
FB		 5849 case TARGET_NR_getppid:
5850 ret = get_errno(getppid());
5851 break;
7a3148a9 5852#endif
31e31b8a
FB		 5853 case TARGET_NR_getpgrp:
5854 ret = get_errno(getpgrp());
5855 break;
5856 case TARGET_NR_setsid:
5857 ret = get_errno(setsid());
5858 break;
e5febef5 5859#ifdef TARGET_NR_sigaction
31e31b8a 5860 case TARGET_NR_sigaction:
31e31b8a 5861 {
6049f4f8
RH		 5862#if defined(TARGET_ALPHA)
5863 struct target_sigaction act, oact, *pact = 0;
53a5960a 5864 struct target_old_sigaction *old_act;
53a5960a 5865 if (arg2) {
579a97f7
FB		 5866 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
5867 goto efault;
66fb9763
FB		 5868 act._sa_handler = old_act->_sa_handler;
5869 target_siginitset(&act.sa_mask, old_act->sa_mask);
5870 act.sa_flags = old_act->sa_flags;
6049f4f8 5871 act.sa_restorer = 0;
53a5960a 5872 unlock_user_struct(old_act, arg2, 0);
66fb9763 5873 pact = &act;
66fb9763
FB		 5874 }
5875 ret = get_errno(do_sigaction(arg1, pact, &oact));
53a5960a 5876 if (!is_error(ret) && arg3) {
579a97f7
FB		 5877 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
5878 goto efault;
53a5960a
PB		 5879 old_act->_sa_handler = oact._sa_handler;
5880 old_act->sa_mask = oact.sa_mask.sig[0];
5881 old_act->sa_flags = oact.sa_flags;
53a5960a 5882 unlock_user_struct(old_act, arg3, 1);
66fb9763 5883 }
6049f4f8 5884#elif defined(TARGET_MIPS)
106ec879
FB		 5885 struct target_sigaction act, oact, *pact, *old_act;
5886
5887 if (arg2) {
579a97f7
FB		 5888 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
5889 goto efault;
106ec879
FB		 5890 act._sa_handler = old_act->_sa_handler;
5891 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
5892 act.sa_flags = old_act->sa_flags;
5893 unlock_user_struct(old_act, arg2, 0);
5894 pact = &act;
5895 } else {
5896 pact = NULL;
5897 }
5898
5899 ret = get_errno(do_sigaction(arg1, pact, &oact));
5900
5901 if (!is_error(ret) && arg3) {
579a97f7
FB		 5902 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
5903 goto efault;
106ec879
FB		 5904 old_act->_sa_handler = oact._sa_handler;
5905 old_act->sa_flags = oact.sa_flags;
5906 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
5907 old_act->sa_mask.sig[1] = 0;
5908 old_act->sa_mask.sig[2] = 0;
5909 old_act->sa_mask.sig[3] = 0;
5910 unlock_user_struct(old_act, arg3, 1);
5911 }
6049f4f8
RH		 5912#else
5913 struct target_old_sigaction *old_act;
5914 struct target_sigaction act, oact, *pact;
5915 if (arg2) {
5916 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
5917 goto efault;
5918 act._sa_handler = old_act->_sa_handler;
5919 target_siginitset(&act.sa_mask, old_act->sa_mask);
5920 act.sa_flags = old_act->sa_flags;
5921 act.sa_restorer = old_act->sa_restorer;
5922 unlock_user_struct(old_act, arg2, 0);
5923 pact = &act;
5924 } else {
5925 pact = NULL;
5926 }
5927 ret = get_errno(do_sigaction(arg1, pact, &oact));
5928 if (!is_error(ret) && arg3) {
5929 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
5930 goto efault;
5931 old_act->_sa_handler = oact._sa_handler;
5932 old_act->sa_mask = oact.sa_mask.sig[0];
5933 old_act->sa_flags = oact.sa_flags;
5934 old_act->sa_restorer = oact.sa_restorer;
5935 unlock_user_struct(old_act, arg3, 1);
5936 }
388bb21a 5937#endif
31e31b8a
FB		 5938 }
5939 break;
e5febef5 5940#endif
66fb9763 5941 case TARGET_NR_rt_sigaction:
53a5960a 5942 {
6049f4f8
RH		 5943#if defined(TARGET_ALPHA)
5944 struct target_sigaction act, oact, *pact = 0;
5945 struct target_rt_sigaction *rt_act;
5946 /* ??? arg4 == sizeof(sigset_t). */
5947 if (arg2) {
5948 if (!lock_user_struct(VERIFY_READ, rt_act, arg2, 1))
5949 goto efault;
5950 act._sa_handler = rt_act->_sa_handler;
5951 act.sa_mask = rt_act->sa_mask;
5952 act.sa_flags = rt_act->sa_flags;
5953 act.sa_restorer = arg5;
5954 unlock_user_struct(rt_act, arg2, 0);
5955 pact = &act;
5956 }
5957 ret = get_errno(do_sigaction(arg1, pact, &oact));
5958 if (!is_error(ret) && arg3) {
5959 if (!lock_user_struct(VERIFY_WRITE, rt_act, arg3, 0))
5960 goto efault;
5961 rt_act->_sa_handler = oact._sa_handler;
5962 rt_act->sa_mask = oact.sa_mask;
5963 rt_act->sa_flags = oact.sa_flags;
5964 unlock_user_struct(rt_act, arg3, 1);
5965 }
5966#else
53a5960a
PB		 5967 struct target_sigaction *act;
5968 struct target_sigaction *oact;
5969
579a97f7
FB		 5970 if (arg2) {
5971 if (!lock_user_struct(VERIFY_READ, act, arg2, 1))
5972 goto efault;
5973 } else
53a5960a 5974 act = NULL;
579a97f7
FB		 5975 if (arg3) {
5976 if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) {
5977 ret = -TARGET_EFAULT;
5978 goto rt_sigaction_fail;
5979 }
5980 } else
53a5960a
PB		 5981 oact = NULL;
5982 ret = get_errno(do_sigaction(arg1, act, oact));
579a97f7
FB		 5983 rt_sigaction_fail:
5984 if (act)
53a5960a 5985 unlock_user_struct(act, arg2, 0);
579a97f7 5986 if (oact)
53a5960a 5987 unlock_user_struct(oact, arg3, 1);
6049f4f8 5988#endif
53a5960a 5989 }
66fb9763 5990 break;
7a3148a9 5991#ifdef TARGET_NR_sgetmask /* not on alpha */
31e31b8a 5992 case TARGET_NR_sgetmask:
66fb9763
FB		 5993 {
5994 sigset_t cur_set;
992f48a0 5995 abi_ulong target_set;
66fb9763
FB		 5996 sigprocmask(0, NULL, &cur_set);
5997 host_to_target_old_sigset(&target_set, &cur_set);
5998 ret = target_set;
5999 }
6000 break;
7a3148a9
JM		 6001#endif
6002#ifdef TARGET_NR_ssetmask /* not on alpha */
31e31b8a 6003 case TARGET_NR_ssetmask:
66fb9763
FB		 6004 {
6005 sigset_t set, oset, cur_set;
992f48a0 6006 abi_ulong target_set = arg1;
66fb9763
FB		 6007 sigprocmask(0, NULL, &cur_set);
6008 target_to_host_old_sigset(&set, &target_set);
6009 sigorset(&set, &set, &cur_set);
6010 sigprocmask(SIG_SETMASK, &set, &oset);
6011 host_to_target_old_sigset(&target_set, &oset);
6012 ret = target_set;
6013 }
6014 break;
7a3148a9 6015#endif
e5febef5 6016#ifdef TARGET_NR_sigprocmask
66fb9763
FB		 6017 case TARGET_NR_sigprocmask:
6018 {
a5b3b13b
RH		 6019#if defined(TARGET_ALPHA)
6020 sigset_t set, oldset;
6021 abi_ulong mask;
6022 int how;
6023
6024 switch (arg1) {
6025 case TARGET_SIG_BLOCK:
6026 how = SIG_BLOCK;
6027 break;
6028 case TARGET_SIG_UNBLOCK:
6029 how = SIG_UNBLOCK;
6030 break;
6031 case TARGET_SIG_SETMASK:
6032 how = SIG_SETMASK;
6033 break;
6034 default:
6035 ret = -TARGET_EINVAL;
6036 goto fail;
6037 }
6038 mask = arg2;
6039 target_to_host_old_sigset(&set, &mask);
6040
6041 ret = get_errno(sigprocmask(how, &set, &oldset));
a5b3b13b
RH		 6042 if (!is_error(ret)) {
6043 host_to_target_old_sigset(&mask, &oldset);
6044 ret = mask;
0229f5a3 6045 ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0; /* force no error */
a5b3b13b
RH		 6046 }
6047#else
66fb9763 6048 sigset_t set, oldset, *set_ptr;
a5b3b13b 6049 int how;
3b46e624 6050
53a5960a 6051 if (arg2) {
a5b3b13b 6052 switch (arg1) {
66fb9763
FB		 6053 case TARGET_SIG_BLOCK:
6054 how = SIG_BLOCK;
6055 break;
6056 case TARGET_SIG_UNBLOCK:
6057 how = SIG_UNBLOCK;
6058 break;
6059 case TARGET_SIG_SETMASK:
6060 how = SIG_SETMASK;
6061 break;
6062 default:
0da46a6e 6063 ret = -TARGET_EINVAL;
66fb9763
FB		 6064 goto fail;
6065 }
c227f099 6066 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
579a97f7 6067 goto efault;
53a5960a
PB		 6068 target_to_host_old_sigset(&set, p);
6069 unlock_user(p, arg2, 0);
66fb9763
FB		 6070 set_ptr = &set;
6071 } else {
6072 how = 0;
6073 set_ptr = NULL;
6074 }
a5b3b13b 6075 ret = get_errno(sigprocmask(how, set_ptr, &oldset));
53a5960a 6076 if (!is_error(ret) && arg3) {
c227f099 6077 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
579a97f7 6078 goto efault;
53a5960a 6079 host_to_target_old_sigset(p, &oldset);
c227f099 6080 unlock_user(p, arg3, sizeof(target_sigset_t));
66fb9763 6081 }
a5b3b13b 6082#endif
66fb9763
FB		 6083 }
6084 break;
e5febef5 6085#endif
66fb9763
FB		 6086 case TARGET_NR_rt_sigprocmask:
6087 {
6088 int how = arg1;
6089 sigset_t set, oldset, *set_ptr;
3b46e624 6090
53a5960a 6091 if (arg2) {
66fb9763
FB		 6092 switch(how) {
6093 case TARGET_SIG_BLOCK:
6094 how = SIG_BLOCK;
6095 break;
6096 case TARGET_SIG_UNBLOCK:
6097 how = SIG_UNBLOCK;
6098 break;
6099 case TARGET_SIG_SETMASK:
6100 how = SIG_SETMASK;
6101 break;
6102 default:
0da46a6e 6103 ret = -TARGET_EINVAL;
66fb9763
FB		 6104 goto fail;
6105 }
c227f099 6106 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
579a97f7 6107 goto efault;
53a5960a
PB		 6108 target_to_host_sigset(&set, p);
6109 unlock_user(p, arg2, 0);
66fb9763
FB		 6110 set_ptr = &set;
6111 } else {
6112 how = 0;
6113 set_ptr = NULL;
6114 }
6115 ret = get_errno(sigprocmask(how, set_ptr, &oldset));
53a5960a 6116 if (!is_error(ret) && arg3) {
c227f099 6117 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
579a97f7 6118 goto efault;
53a5960a 6119 host_to_target_sigset(p, &oldset);
c227f099 6120 unlock_user(p, arg3, sizeof(target_sigset_t));
66fb9763
FB		 6121 }
6122 }
6123 break;
e5febef5 6124#ifdef TARGET_NR_sigpending
66fb9763
FB		 6125 case TARGET_NR_sigpending:
6126 {
6127 sigset_t set;
6128 ret = get_errno(sigpending(&set));
6129 if (!is_error(ret)) {
c227f099 6130 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
579a97f7 6131 goto efault;
53a5960a 6132 host_to_target_old_sigset(p, &set);
c227f099 6133 unlock_user(p, arg1, sizeof(target_sigset_t));
66fb9763
FB		 6134 }
6135 }
6136 break;
e5febef5 6137#endif
66fb9763
FB		 6138 case TARGET_NR_rt_sigpending:
6139 {
6140 sigset_t set;
6141 ret = get_errno(sigpending(&set));
6142 if (!is_error(ret)) {
c227f099 6143 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
579a97f7 6144 goto efault;
53a5960a 6145 host_to_target_sigset(p, &set);
c227f099 6146 unlock_user(p, arg1, sizeof(target_sigset_t));
66fb9763
FB		 6147 }
6148 }
6149 break;
e5febef5 6150#ifdef TARGET_NR_sigsuspend
66fb9763
FB		 6151 case TARGET_NR_sigsuspend:
6152 {
6153 sigset_t set;
f43ce12b
RH		 6154#if defined(TARGET_ALPHA)
6155 abi_ulong mask = arg1;
6156 target_to_host_old_sigset(&set, &mask);
6157#else
c227f099 6158 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
579a97f7 6159 goto efault;
53a5960a
PB		 6160 target_to_host_old_sigset(&set, p);
6161 unlock_user(p, arg1, 0);
f43ce12b 6162#endif
66fb9763
FB		 6163 ret = get_errno(sigsuspend(&set));
6164 }
6165 break;
e5febef5 6166#endif
66fb9763
FB		 6167 case TARGET_NR_rt_sigsuspend:
6168 {
6169 sigset_t set;
c227f099 6170 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
579a97f7 6171 goto efault;
53a5960a
PB		 6172 target_to_host_sigset(&set, p);
6173 unlock_user(p, arg1, 0);
66fb9763
FB		 6174 ret = get_errno(sigsuspend(&set));
6175 }
6176 break;
6177 case TARGET_NR_rt_sigtimedwait:
6178 {
66fb9763
FB		 6179 sigset_t set;
6180 struct timespec uts, *puts;
6181 siginfo_t uinfo;
3b46e624 6182
c227f099 6183 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
579a97f7 6184 goto efault;
53a5960a
PB		 6185 target_to_host_sigset(&set, p);
6186 unlock_user(p, arg1, 0);
6187 if (arg3) {
66fb9763 6188 puts = &uts;
53a5960a 6189 target_to_host_timespec(puts, arg3);
66fb9763
FB		 6190 } else {
6191 puts = NULL;
6192 }
6193 ret = get_errno(sigtimedwait(&set, &uinfo, puts));
974a196d
PJ		 6194 if (!is_error(ret)) {
6195 if (arg2) {
6196 p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t),
6197 0);
6198 if (!p) {
6199 goto efault;
6200 }
6201 host_to_target_siginfo(p, &uinfo);
6202 unlock_user(p, arg2, sizeof(target_siginfo_t));
6203 }
6204 ret = host_to_target_signal(ret);
66fb9763
FB		 6205 }
6206 }
6207 break;
6208 case TARGET_NR_rt_sigqueueinfo:
6209 {
6210 siginfo_t uinfo;
c227f099 6211 if (!(p = lock_user(VERIFY_READ, arg3, sizeof(target_sigset_t), 1)))
579a97f7 6212 goto efault;
53a5960a
PB		 6213 target_to_host_siginfo(&uinfo, p);
6214 unlock_user(p, arg1, 0);
66fb9763
FB		 6215 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
6216 }
6217 break;
e5febef5 6218#ifdef TARGET_NR_sigreturn
66fb9763
FB		 6219 case TARGET_NR_sigreturn:
6220 /* NOTE: ret is eax, so not transcoding must be done */
6221 ret = do_sigreturn(cpu_env);
6222 break;
e5febef5 6223#endif
66fb9763
FB		 6224 case TARGET_NR_rt_sigreturn:
6225 /* NOTE: ret is eax, so not transcoding must be done */
6226 ret = do_rt_sigreturn(cpu_env);
6227 break;
31e31b8a 6228 case TARGET_NR_sethostname:
579a97f7
FB		 6229 if (!(p = lock_user_string(arg1)))
6230 goto efault;
53a5960a
PB		 6231 ret = get_errno(sethostname(p, arg2));
6232 unlock_user(p, arg1, 0);
31e31b8a
FB		 6233 break;
6234 case TARGET_NR_setrlimit:
9de5e440 6235 {
e22b7015 6236 int resource = target_to_host_resource(arg1);
53a5960a 6237 struct target_rlimit *target_rlim;
9de5e440 6238 struct rlimit rlim;
579a97f7
FB		 6239 if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1))
6240 goto efault;
81bbe906
TY		 6241 rlim.rlim_cur = target_to_host_rlim(target_rlim->rlim_cur);
6242 rlim.rlim_max = target_to_host_rlim(target_rlim->rlim_max);
53a5960a 6243 unlock_user_struct(target_rlim, arg2, 0);
9de5e440
FB		 6244 ret = get_errno(setrlimit(resource, &rlim));
6245 }
6246 break;
31e31b8a 6247 case TARGET_NR_getrlimit:
9de5e440 6248 {
e22b7015 6249 int resource = target_to_host_resource(arg1);
53a5960a 6250 struct target_rlimit *target_rlim;
9de5e440 6251 struct rlimit rlim;
3b46e624 6252
9de5e440
FB		 6253 ret = get_errno(getrlimit(resource, &rlim));
6254 if (!is_error(ret)) {
579a97f7
FB		 6255 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
6256 goto efault;
81bbe906
TY		 6257 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
6258 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
53a5960a 6259 unlock_user_struct(target_rlim, arg2, 1);
9de5e440
FB		 6260 }
6261 }
6262 break;
31e31b8a 6263 case TARGET_NR_getrusage:
b409186b
FB		 6264 {
6265 struct rusage rusage;
b409186b
FB		 6266 ret = get_errno(getrusage(arg1, &rusage));
6267 if (!is_error(ret)) {
53a5960a 6268 host_to_target_rusage(arg2, &rusage);
b409186b
FB		 6269 }
6270 }
6271 break;
31e31b8a
FB		 6272 case TARGET_NR_gettimeofday:
6273 {
31e31b8a
FB		 6274 struct timeval tv;
6275 ret = get_errno(gettimeofday(&tv, NULL));
6276 if (!is_error(ret)) {
788f5ec4
TS		 6277 if (copy_to_user_timeval(arg1, &tv))
6278 goto efault;
31e31b8a
FB		 6279 }
6280 }
6281 break;
6282 case TARGET_NR_settimeofday:
6283 {
31e31b8a 6284 struct timeval tv;
788f5ec4
TS		 6285 if (copy_from_user_timeval(&tv, arg1))
6286 goto efault;
31e31b8a
FB		 6287 ret = get_errno(settimeofday(&tv, NULL));
6288 }
6289 break;
9468a5d4 6290#if defined(TARGET_NR_select)
31e31b8a 6291 case TARGET_NR_select:
9468a5d4
LV		 6292#if defined(TARGET_S390X) || defined(TARGET_ALPHA)
6293 ret = do_select(arg1, arg2, arg3, arg4, arg5);
6294#else
f2674e31 6295 {
53a5960a 6296 struct target_sel_arg_struct *sel;
992f48a0 6297 abi_ulong inp, outp, exp, tvp;
53a5960a
PB		 6298 long nsel;
6299
579a97f7
FB		 6300 if (!lock_user_struct(VERIFY_READ, sel, arg1, 1))
6301 goto efault;
cbb21eed
MB		 6302 nsel = tswapal(sel->n);
6303 inp = tswapal(sel->inp);
6304 outp = tswapal(sel->outp);
6305 exp = tswapal(sel->exp);
6306 tvp = tswapal(sel->tvp);
53a5960a
PB		 6307 unlock_user_struct(sel, arg1, 0);
6308 ret = do_select(nsel, inp, outp, exp, tvp);
f2674e31 6309 }
9468a5d4 6310#endif
f2674e31 6311 break;
9e42382f
RV		 6312#endif
6313#ifdef TARGET_NR_pselect6
6314 case TARGET_NR_pselect6:
055e0906
MF		 6315 {
6316 abi_long rfd_addr, wfd_addr, efd_addr, n, ts_addr;
6317 fd_set rfds, wfds, efds;
6318 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
6319 struct timespec ts, *ts_ptr;
6320
6321 /*
6322 * The 6th arg is actually two args smashed together,
6323 * so we cannot use the C library.
6324 */
6325 sigset_t set;
6326 struct {
6327 sigset_t *set;
6328 size_t size;
6329 } sig, *sig_ptr;
6330
6331 abi_ulong arg_sigset, arg_sigsize, *arg7;
6332 target_sigset_t *target_sigset;
6333
6334 n = arg1;
6335 rfd_addr = arg2;
6336 wfd_addr = arg3;
6337 efd_addr = arg4;
6338 ts_addr = arg5;
6339
6340 ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n);
6341 if (ret) {
6342 goto fail;
6343 }
6344 ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n);
6345 if (ret) {
6346 goto fail;
6347 }
6348 ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n);
6349 if (ret) {
6350 goto fail;
6351 }
6352
6353 /*
6354 * This takes a timespec, and not a timeval, so we cannot
6355 * use the do_select() helper ...
6356 */
6357 if (ts_addr) {
6358 if (target_to_host_timespec(&ts, ts_addr)) {
6359 goto efault;
6360 }
6361 ts_ptr = &ts;
6362 } else {
6363 ts_ptr = NULL;
6364 }
6365
6366 /* Extract the two packed args for the sigset */
6367 if (arg6) {
6368 sig_ptr = &sig;
6369 sig.size = _NSIG / 8;
6370
6371 arg7 = lock_user(VERIFY_READ, arg6, sizeof(*arg7) * 2, 1);
6372 if (!arg7) {
6373 goto efault;
6374 }
cbb21eed
MB		 6375 arg_sigset = tswapal(arg7[0]);
6376 arg_sigsize = tswapal(arg7[1]);
055e0906
MF		 6377 unlock_user(arg7, arg6, 0);
6378
6379 if (arg_sigset) {
6380 sig.set = &set;
8f04eeb3
PM		 6381 if (arg_sigsize != sizeof(*target_sigset)) {
6382 /* Like the kernel, we enforce correct size sigsets */
6383 ret = -TARGET_EINVAL;
6384 goto fail;
6385 }
055e0906
MF		 6386 target_sigset = lock_user(VERIFY_READ, arg_sigset,
6387 sizeof(*target_sigset), 1);
6388 if (!target_sigset) {
6389 goto efault;
6390 }
6391 target_to_host_sigset(&set, target_sigset);
6392 unlock_user(target_sigset, arg_sigset, 0);
6393 } else {
6394 sig.set = NULL;
6395 }
6396 } else {
6397 sig_ptr = NULL;
6398 }
6399
6400 ret = get_errno(sys_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr,
6401 ts_ptr, sig_ptr));
6402
6403 if (!is_error(ret)) {
6404 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
6405 goto efault;
6406 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
6407 goto efault;
6408 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
6409 goto efault;
6410
6411 if (ts_addr && host_to_target_timespec(ts_addr, &ts))
6412 goto efault;
6413 }
6414 }
6415 break;
048f6b4d 6416#endif
31e31b8a 6417 case TARGET_NR_symlink:
53a5960a
PB		 6418 {
6419 void *p2;
6420 p = lock_user_string(arg1);
6421 p2 = lock_user_string(arg2);
579a97f7
FB		 6422 if (!p || !p2)
6423 ret = -TARGET_EFAULT;
6424 else
6425 ret = get_errno(symlink(p, p2));
53a5960a
PB		 6426 unlock_user(p2, arg2, 0);
6427 unlock_user(p, arg1, 0);
6428 }
31e31b8a 6429 break;
c0d472b1 6430#if defined(TARGET_NR_symlinkat)
f0b6243d 6431 case TARGET_NR_symlinkat:
f0b6243d 6432 {
579a97f7 6433 void *p2;
f0b6243d
TS		 6434 p = lock_user_string(arg1);
6435 p2 = lock_user_string(arg3);
579a97f7 6436 if (!p || !p2)
0da46a6e 6437 ret = -TARGET_EFAULT;
f0b6243d 6438 else
c0d472b1 6439 ret = get_errno(symlinkat(p, arg2, p2));
579a97f7
FB		 6440 unlock_user(p2, arg3, 0);
6441 unlock_user(p, arg1, 0);
f0b6243d
TS		 6442 }
6443 break;
6444#endif
ebc05488 6445#ifdef TARGET_NR_oldlstat
31e31b8a
FB		 6446 case TARGET_NR_oldlstat:
6447 goto unimplemented;
ebc05488 6448#endif
31e31b8a 6449 case TARGET_NR_readlink:
53a5960a 6450 {
463d8e73 6451 void *p2;
53a5960a 6452 p = lock_user_string(arg1);
579a97f7 6453 p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0);
463d8e73 6454 if (!p || !p2) {
579a97f7 6455 ret = -TARGET_EFAULT;
463d8e73
AS		 6456 } else if (is_proc_myself((const char *)p, "exe")) {
6457 char real[PATH_MAX], *temp;
6458 temp = realpath(exec_path, real);
6459 ret = temp == NULL ? get_errno(-1) : strlen(real) ;
6460 snprintf((char *)p2, arg3, "%s", real);
6461 } else {
6462 ret = get_errno(readlink(path(p), p2, arg3));
d088d664 6463 }
53a5960a
PB		 6464 unlock_user(p2, arg2, ret);
6465 unlock_user(p, arg1, 0);
6466 }
31e31b8a 6467 break;
c0d472b1 6468#if defined(TARGET_NR_readlinkat)
5e0ccb18 6469 case TARGET_NR_readlinkat:
5e0ccb18 6470 {
579a97f7 6471 void *p2;
5e0ccb18 6472 p = lock_user_string(arg2);
579a97f7 6473 p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0);
463d8e73
AS		 6474 if (!p || !p2) {
6475 ret = -TARGET_EFAULT;
6476 } else if (is_proc_myself((const char *)p, "exe")) {
6477 char real[PATH_MAX], *temp;
6478 temp = realpath(exec_path, real);
6479 ret = temp == NULL ? get_errno(-1) : strlen(real) ;
6480 snprintf((char *)p2, arg4, "%s", real);
6481 } else {
c0d472b1 6482 ret = get_errno(readlinkat(arg1, path(p), p2, arg4));
463d8e73 6483 }
579a97f7
FB		 6484 unlock_user(p2, arg3, ret);
6485 unlock_user(p, arg2, 0);
5e0ccb18
TS		 6486 }
6487 break;
6488#endif
e5febef5 6489#ifdef TARGET_NR_uselib
31e31b8a
FB		 6490 case TARGET_NR_uselib:
6491 goto unimplemented;
e5febef5
TS		 6492#endif
6493#ifdef TARGET_NR_swapon
31e31b8a 6494 case TARGET_NR_swapon:
579a97f7
FB		 6495 if (!(p = lock_user_string(arg1)))
6496 goto efault;
53a5960a
PB		 6497 ret = get_errno(swapon(p, arg2));
6498 unlock_user(p, arg1, 0);
31e31b8a 6499 break;
e5febef5 6500#endif
31e31b8a 6501 case TARGET_NR_reboot:
c07ecc68
LV		 6502 if (arg3 == LINUX_REBOOT_CMD_RESTART2) {
6503 /* arg4 must be ignored in all other cases */
6504 p = lock_user_string(arg4);
6505 if (!p) {
6506 goto efault;
6507 }
6508 ret = get_errno(reboot(arg1, arg2, arg3, p));
6509 unlock_user(p, arg4, 0);
6510 } else {
6511 ret = get_errno(reboot(arg1, arg2, arg3, NULL));
6512 }
0f6b4d21 6513 break;
e5febef5 6514#ifdef TARGET_NR_readdir
31e31b8a
FB		 6515 case TARGET_NR_readdir:
6516 goto unimplemented;
e5febef5
TS		 6517#endif
6518#ifdef TARGET_NR_mmap
31e31b8a 6519 case TARGET_NR_mmap:
09701199
AG		 6520#if (defined(TARGET_I386) && defined(TARGET_ABI32)) || \
6521 (defined(TARGET_ARM) && defined(TARGET_ABI32)) || \
a4c075f1
UH		 6522 defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE) \
6523 || defined(TARGET_S390X)
31e31b8a 6524 {
992f48a0
BS		 6525 abi_ulong *v;
6526 abi_ulong v1, v2, v3, v4, v5, v6;
579a97f7
FB		 6527 if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1)))
6528 goto efault;
cbb21eed
MB		 6529 v1 = tswapal(v[0]);
6530 v2 = tswapal(v[1]);
6531 v3 = tswapal(v[2]);
6532 v4 = tswapal(v[3]);
6533 v5 = tswapal(v[4]);
6534 v6 = tswapal(v[5]);
53a5960a 6535 unlock_user(v, arg1, 0);
5fafdf24 6536 ret = get_errno(target_mmap(v1, v2, v3,
5286db75
FB		 6537 target_to_host_bitmask(v4, mmap_flags_tbl),
6538 v5, v6));
31e31b8a 6539 }
31e31b8a 6540#else
5fafdf24
TS		 6541 ret = get_errno(target_mmap(arg1, arg2, arg3,
6542 target_to_host_bitmask(arg4, mmap_flags_tbl),
6fb883e8
FB		 6543 arg5,
6544 arg6));
31e31b8a 6545#endif
6fb883e8 6546 break;
e5febef5 6547#endif
a315a145 6548#ifdef TARGET_NR_mmap2
6fb883e8 6549 case TARGET_NR_mmap2:
bb7ec043 6550#ifndef MMAP_SHIFT
c573ff67 6551#define MMAP_SHIFT 12
c573ff67 6552#endif
5fafdf24
TS		 6553 ret = get_errno(target_mmap(arg1, arg2, arg3,
6554 target_to_host_bitmask(arg4, mmap_flags_tbl),
5286db75 6555 arg5,
c573ff67 6556 arg6 << MMAP_SHIFT));
31e31b8a 6557 break;
a315a145 6558#endif
31e31b8a 6559 case TARGET_NR_munmap:
54936004 6560 ret = get_errno(target_munmap(arg1, arg2));
31e31b8a 6561 break;
9de5e440 6562 case TARGET_NR_mprotect:
97374d38 6563 {
0429a971 6564 TaskState *ts = cpu->opaque;
97374d38
PB		 6565 /* Special hack to detect libc making the stack executable. */
6566 if ((arg3 & PROT_GROWSDOWN)
6567 && arg1 >= ts->info->stack_limit
6568 && arg1 <= ts->info->start_stack) {
6569 arg3 &= ~PROT_GROWSDOWN;
6570 arg2 = arg2 + arg1 - ts->info->stack_limit;
6571 arg1 = ts->info->stack_limit;
6572 }
6573 }
54936004 6574 ret = get_errno(target_mprotect(arg1, arg2, arg3));
9de5e440 6575 break;
e5febef5 6576#ifdef TARGET_NR_mremap
9de5e440 6577 case TARGET_NR_mremap:
54936004 6578 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
9de5e440 6579 break;
e5febef5 6580#endif
53a5960a 6581 /* ??? msync/mlock/munlock are broken for softmmu. */
e5febef5 6582#ifdef TARGET_NR_msync
9de5e440 6583 case TARGET_NR_msync:
53a5960a 6584 ret = get_errno(msync(g2h(arg1), arg2, arg3));
9de5e440 6585 break;
e5febef5
TS		 6586#endif
6587#ifdef TARGET_NR_mlock
9de5e440 6588 case TARGET_NR_mlock:
53a5960a 6589 ret = get_errno(mlock(g2h(arg1), arg2));
9de5e440 6590 break;
e5febef5
TS		 6591#endif
6592#ifdef TARGET_NR_munlock
9de5e440 6593 case TARGET_NR_munlock:
53a5960a 6594 ret = get_errno(munlock(g2h(arg1), arg2));
9de5e440 6595 break;
e5febef5
TS		 6596#endif
6597#ifdef TARGET_NR_mlockall
9de5e440
FB		 6598 case TARGET_NR_mlockall:
6599 ret = get_errno(mlockall(arg1));
6600 break;
e5febef5
TS		 6601#endif
6602#ifdef TARGET_NR_munlockall
9de5e440
FB		 6603 case TARGET_NR_munlockall:
6604 ret = get_errno(munlockall());
6605 break;
e5febef5 6606#endif
31e31b8a 6607 case TARGET_NR_truncate:
579a97f7
FB		 6608 if (!(p = lock_user_string(arg1)))
6609 goto efault;
53a5960a
PB		 6610 ret = get_errno(truncate(p, arg2));
6611 unlock_user(p, arg1, 0);
31e31b8a
FB		 6612 break;
6613 case TARGET_NR_ftruncate:
6614 ret = get_errno(ftruncate(arg1, arg2));
6615 break;
6616 case TARGET_NR_fchmod:
6617 ret = get_errno(fchmod(arg1, arg2));
6618 break;
c0d472b1 6619#if defined(TARGET_NR_fchmodat)
814d7977 6620 case TARGET_NR_fchmodat:
579a97f7
FB		 6621 if (!(p = lock_user_string(arg2)))
6622 goto efault;
c0d472b1 6623 ret = get_errno(fchmodat(arg1, p, arg3, 0));
579a97f7 6624 unlock_user(p, arg2, 0);
814d7977
TS		 6625 break;
6626#endif
31e31b8a 6627 case TARGET_NR_getpriority:
95c09828
RH		 6628 /* Note that negative values are valid for getpriority, so we must
6629 differentiate based on errno settings. */
6630 errno = 0;
6631 ret = getpriority(arg1, arg2);
6632 if (ret == -1 && errno != 0) {
6633 ret = -host_to_target_errno(errno);
6634 break;
6635 }
6636#ifdef TARGET_ALPHA
6637 /* Return value is the unbiased priority. Signal no error. */
6638 ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0;
6639#else
6640 /* Return value is a biased priority to avoid negative numbers. */
6641 ret = 20 - ret;
6642#endif
31e31b8a
FB		 6643 break;
6644 case TARGET_NR_setpriority:
6645 ret = get_errno(setpriority(arg1, arg2, arg3));
6646 break;
ebc05488 6647#ifdef TARGET_NR_profil
31e31b8a
FB		 6648 case TARGET_NR_profil:
6649 goto unimplemented;
ebc05488 6650#endif
31e31b8a 6651 case TARGET_NR_statfs:
579a97f7
FB		 6652 if (!(p = lock_user_string(arg1)))
6653 goto efault;
53a5960a
PB		 6654 ret = get_errno(statfs(path(p), &stfs));
6655 unlock_user(p, arg1, 0);
31e31b8a
FB		 6656 convert_statfs:
6657 if (!is_error(ret)) {
53a5960a 6658 struct target_statfs *target_stfs;
3b46e624 6659
579a97f7
FB		 6660 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0))
6661 goto efault;
6662 __put_user(stfs.f_type, &target_stfs->f_type);
6663 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
6664 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
6665 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
6666 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
6667 __put_user(stfs.f_files, &target_stfs->f_files);
6668 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
6669 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
6670 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
6671 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
229d3376
AG		 6672 __put_user(stfs.f_frsize, &target_stfs->f_frsize);
6673 memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare));
53a5960a 6674 unlock_user_struct(target_stfs, arg2, 1);
31e31b8a
FB		 6675 }
6676 break;
6677 case TARGET_NR_fstatfs:
56c8f68f 6678 ret = get_errno(fstatfs(arg1, &stfs));
31e31b8a 6679 goto convert_statfs;
56c8f68f
FB		 6680#ifdef TARGET_NR_statfs64
6681 case TARGET_NR_statfs64:
579a97f7
FB		 6682 if (!(p = lock_user_string(arg1)))
6683 goto efault;
53a5960a
PB		 6684 ret = get_errno(statfs(path(p), &stfs));
6685 unlock_user(p, arg1, 0);
56c8f68f
FB		 6686 convert_statfs64:
6687 if (!is_error(ret)) {
53a5960a 6688 struct target_statfs64 *target_stfs;
3b46e624 6689
579a97f7
FB		 6690 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0))
6691 goto efault;
6692 __put_user(stfs.f_type, &target_stfs->f_type);
6693 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
6694 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
6695 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
6696 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
6697 __put_user(stfs.f_files, &target_stfs->f_files);
6698 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
6699 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
6700 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
6701 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
229d3376
AG		 6702 __put_user(stfs.f_frsize, &target_stfs->f_frsize);
6703 memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare));
579a97f7 6704 unlock_user_struct(target_stfs, arg3, 1);
56c8f68f
FB		 6705 }
6706 break;
6707 case TARGET_NR_fstatfs64:
6708 ret = get_errno(fstatfs(arg1, &stfs));
6709 goto convert_statfs64;
6710#endif
ebc05488 6711#ifdef TARGET_NR_ioperm
31e31b8a
FB		 6712 case TARGET_NR_ioperm:
6713 goto unimplemented;
ebc05488 6714#endif
e5febef5 6715#ifdef TARGET_NR_socketcall
31e31b8a 6716 case TARGET_NR_socketcall:
53a5960a 6717 ret = do_socketcall(arg1, arg2);
31e31b8a 6718 break;
e5febef5 6719#endif
3532fa74
FB		 6720#ifdef TARGET_NR_accept
6721 case TARGET_NR_accept:
a94b4987
PM		 6722 ret = do_accept4(arg1, arg2, arg3, 0);
6723 break;
6724#endif
6725#ifdef TARGET_NR_accept4
6726 case TARGET_NR_accept4:
6727#ifdef CONFIG_ACCEPT4
6728 ret = do_accept4(arg1, arg2, arg3, arg4);
6729#else
6730 goto unimplemented;
6731#endif
3532fa74
FB		 6732 break;
6733#endif
6734#ifdef TARGET_NR_bind
6735 case TARGET_NR_bind:
6736 ret = do_bind(arg1, arg2, arg3);
6737 break;
6738#endif
6739#ifdef TARGET_NR_connect
6740 case TARGET_NR_connect:
6741 ret = do_connect(arg1, arg2, arg3);
6742 break;
6743#endif
6744#ifdef TARGET_NR_getpeername
6745 case TARGET_NR_getpeername:
1be9e1dc 6746 ret = do_getpeername(arg1, arg2, arg3);
3532fa74
FB		 6747 break;
6748#endif
6749#ifdef TARGET_NR_getsockname
6750 case TARGET_NR_getsockname:
1be9e1dc 6751 ret = do_getsockname(arg1, arg2, arg3);
3532fa74
FB		 6752 break;
6753#endif
6754#ifdef TARGET_NR_getsockopt
6755 case TARGET_NR_getsockopt:
6756 ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5);
6757 break;
6758#endif
6759#ifdef TARGET_NR_listen
6760 case TARGET_NR_listen:
1be9e1dc 6761 ret = get_errno(listen(arg1, arg2));
3532fa74
FB		 6762 break;
6763#endif
6764#ifdef TARGET_NR_recv
6765 case TARGET_NR_recv:
214201bd 6766 ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0);
3532fa74
FB		 6767 break;
6768#endif
6769#ifdef TARGET_NR_recvfrom
6770 case TARGET_NR_recvfrom:
214201bd 6771 ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6);
3532fa74
FB		 6772 break;
6773#endif
6774#ifdef TARGET_NR_recvmsg
6775 case TARGET_NR_recvmsg:
6776 ret = do_sendrecvmsg(arg1, arg2, arg3, 0);
6777 break;
6778#endif
6779#ifdef TARGET_NR_send
6780 case TARGET_NR_send:
1be9e1dc 6781 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0);
3532fa74
FB		 6782 break;
6783#endif
6784#ifdef TARGET_NR_sendmsg
6785 case TARGET_NR_sendmsg:
6786 ret = do_sendrecvmsg(arg1, arg2, arg3, 1);
6787 break;
6788#endif
f19e00d7
AG		 6789#ifdef TARGET_NR_sendmmsg
6790 case TARGET_NR_sendmmsg:
6791 ret = do_sendrecvmmsg(arg1, arg2, arg3, arg4, 1);
6792 break;
6793 case TARGET_NR_recvmmsg:
6794 ret = do_sendrecvmmsg(arg1, arg2, arg3, arg4, 0);
6795 break;
6796#endif
3532fa74
FB		 6797#ifdef TARGET_NR_sendto
6798 case TARGET_NR_sendto:
1be9e1dc 6799 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
3532fa74
FB		 6800 break;
6801#endif
6802#ifdef TARGET_NR_shutdown
6803 case TARGET_NR_shutdown:
1be9e1dc 6804 ret = get_errno(shutdown(arg1, arg2));
3532fa74
FB		 6805 break;
6806#endif
6807#ifdef TARGET_NR_socket
6808 case TARGET_NR_socket:
6809 ret = do_socket(arg1, arg2, arg3);
6810 break;
6811#endif
6812#ifdef TARGET_NR_socketpair
6813 case TARGET_NR_socketpair:
1be9e1dc 6814 ret = do_socketpair(arg1, arg2, arg3, arg4);
3532fa74
FB		 6815 break;
6816#endif
6817#ifdef TARGET_NR_setsockopt
6818 case TARGET_NR_setsockopt:
6819 ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
6820 break;
6821#endif
7494b0f9 6822
31e31b8a 6823 case TARGET_NR_syslog:
579a97f7
FB		 6824 if (!(p = lock_user_string(arg2)))
6825 goto efault;
e5574487
TS		 6826 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));
6827 unlock_user(p, arg2, 0);
7494b0f9
TS		 6828 break;
6829
31e31b8a 6830 case TARGET_NR_setitimer:
66fb9763 6831 {
66fb9763
FB		 6832 struct itimerval value, ovalue, *pvalue;
6833
53a5960a 6834 if (arg2) {
66fb9763 6835 pvalue = &value;
788f5ec4
TS		 6836 if (copy_from_user_timeval(&pvalue->it_interval, arg2)
6837 || copy_from_user_timeval(&pvalue->it_value,
6838 arg2 + sizeof(struct target_timeval)))
6839 goto efault;
66fb9763
FB		 6840 } else {
6841 pvalue = NULL;
6842 }
6843 ret = get_errno(setitimer(arg1, pvalue, &ovalue));
53a5960a 6844 if (!is_error(ret) && arg3) {
788f5ec4
TS		 6845 if (copy_to_user_timeval(arg3,
6846 &ovalue.it_interval)
6847 || copy_to_user_timeval(arg3 + sizeof(struct target_timeval),
6848 &ovalue.it_value))
6849 goto efault;
66fb9763
FB		 6850 }
6851 }
6852 break;
31e31b8a 6853 case TARGET_NR_getitimer:
66fb9763 6854 {
66fb9763 6855 struct itimerval value;
3b46e624 6856
66fb9763 6857 ret = get_errno(getitimer(arg1, &value));
53a5960a 6858 if (!is_error(ret) && arg2) {
788f5ec4
TS		 6859 if (copy_to_user_timeval(arg2,
6860 &value.it_interval)
6861 || copy_to_user_timeval(arg2 + sizeof(struct target_timeval),
6862 &value.it_value))
6863 goto efault;
66fb9763
FB		 6864 }
6865 }
6866 break;
31e31b8a 6867 case TARGET_NR_stat:
579a97f7
FB		 6868 if (!(p = lock_user_string(arg1)))
6869 goto efault;
53a5960a
PB		 6870 ret = get_errno(stat(path(p), &st));
6871 unlock_user(p, arg1, 0);
31e31b8a
FB		 6872 goto do_stat;
6873 case TARGET_NR_lstat:
579a97f7
FB		 6874 if (!(p = lock_user_string(arg1)))
6875 goto efault;
53a5960a
PB		 6876 ret = get_errno(lstat(path(p), &st));
6877 unlock_user(p, arg1, 0);
31e31b8a
FB		 6878 goto do_stat;
6879 case TARGET_NR_fstat:
6880 {
6881 ret = get_errno(fstat(arg1, &st));
6882 do_stat:
6883 if (!is_error(ret)) {
53a5960a 6884 struct target_stat *target_st;
e3584658 6885
579a97f7
FB		 6886 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0))
6887 goto efault;
12727917 6888 memset(target_st, 0, sizeof(*target_st));
d2fd1af7
FB		 6889 __put_user(st.st_dev, &target_st->st_dev);
6890 __put_user(st.st_ino, &target_st->st_ino);
6891 __put_user(st.st_mode, &target_st->st_mode);
6892 __put_user(st.st_uid, &target_st->st_uid);
6893 __put_user(st.st_gid, &target_st->st_gid);
6894 __put_user(st.st_nlink, &target_st->st_nlink);
6895 __put_user(st.st_rdev, &target_st->st_rdev);
6896 __put_user(st.st_size, &target_st->st_size);
6897 __put_user(st.st_blksize, &target_st->st_blksize);
6898 __put_user(st.st_blocks, &target_st->st_blocks);
6899 __put_user(st.st_atime, &target_st->target_st_atime);
6900 __put_user(st.st_mtime, &target_st->target_st_mtime);
6901 __put_user(st.st_ctime, &target_st->target_st_ctime);
53a5960a 6902 unlock_user_struct(target_st, arg2, 1);
31e31b8a
FB		 6903 }
6904 }
6905 break;
ebc05488 6906#ifdef TARGET_NR_olduname
31e31b8a
FB		 6907 case TARGET_NR_olduname:
6908 goto unimplemented;
ebc05488
FB		 6909#endif
6910#ifdef TARGET_NR_iopl
31e31b8a
FB		 6911 case TARGET_NR_iopl:
6912 goto unimplemented;
ebc05488 6913#endif
31e31b8a
FB		 6914 case TARGET_NR_vhangup:
6915 ret = get_errno(vhangup());
6916 break;
ebc05488 6917#ifdef TARGET_NR_idle
31e31b8a
FB		 6918 case TARGET_NR_idle:
6919 goto unimplemented;
42ad6ae9
FB		 6920#endif
6921#ifdef TARGET_NR_syscall
6922 case TARGET_NR_syscall:
5945cfcb
PM		 6923 ret = do_syscall(cpu_env, arg1 & 0xffff, arg2, arg3, arg4, arg5,
6924 arg6, arg7, arg8, 0);
6925 break;
ebc05488 6926#endif
31e31b8a
FB		 6927 case TARGET_NR_wait4:
6928 {
6929 int status;
992f48a0 6930 abi_long status_ptr = arg2;
31e31b8a 6931 struct rusage rusage, *rusage_ptr;
992f48a0 6932 abi_ulong target_rusage = arg4;
31e31b8a
FB		 6933 if (target_rusage)
6934 rusage_ptr = &rusage;
6935 else
6936 rusage_ptr = NULL;
6937 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
6938 if (!is_error(ret)) {
5379557b 6939 if (status_ptr && ret) {
1d9d8b55 6940 status = host_to_target_waitstatus(status);
2f619698
FB		 6941 if (put_user_s32(status, status_ptr))
6942 goto efault;
31e31b8a 6943 }
2f619698
FB		 6944 if (target_rusage)
6945 host_to_target_rusage(target_rusage, &rusage);
31e31b8a
FB		 6946 }
6947 }
6948 break;
e5febef5 6949#ifdef TARGET_NR_swapoff
31e31b8a 6950 case TARGET_NR_swapoff:
579a97f7
FB		 6951 if (!(p = lock_user_string(arg1)))
6952 goto efault;
53a5960a
PB		 6953 ret = get_errno(swapoff(p));
6954 unlock_user(p, arg1, 0);
31e31b8a 6955 break;
e5febef5 6956#endif
31e31b8a 6957 case TARGET_NR_sysinfo:
a5448a7d 6958 {
53a5960a 6959 struct target_sysinfo *target_value;
a5448a7d
FB		 6960 struct sysinfo value;
6961 ret = get_errno(sysinfo(&value));
53a5960a 6962 if (!is_error(ret) && arg1)
a5448a7d 6963 {
579a97f7
FB		 6964 if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0))
6965 goto efault;
a5448a7d
FB		 6966 __put_user(value.uptime, &target_value->uptime);
6967 __put_user(value.loads[0], &target_value->loads[0]);
6968 __put_user(value.loads[1], &target_value->loads[1]);
6969 __put_user(value.loads[2], &target_value->loads[2]);
6970 __put_user(value.totalram, &target_value->totalram);
6971 __put_user(value.freeram, &target_value->freeram);
6972 __put_user(value.sharedram, &target_value->sharedram);
6973 __put_user(value.bufferram, &target_value->bufferram);
6974 __put_user(value.totalswap, &target_value->totalswap);
6975 __put_user(value.freeswap, &target_value->freeswap);
6976 __put_user(value.procs, &target_value->procs);
6977 __put_user(value.totalhigh, &target_value->totalhigh);
6978 __put_user(value.freehigh, &target_value->freehigh);
6979 __put_user(value.mem_unit, &target_value->mem_unit);
53a5960a 6980 unlock_user_struct(target_value, arg1, 1);
a5448a7d
FB		 6981 }
6982 }
6983 break;
e5febef5 6984#ifdef TARGET_NR_ipc
31e31b8a 6985 case TARGET_NR_ipc:
8853f86e
FB		 6986 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
6987 break;
e5febef5 6988#endif
e5289087
AJ		 6989#ifdef TARGET_NR_semget
6990 case TARGET_NR_semget:
6991 ret = get_errno(semget(arg1, arg2, arg3));
6992 break;
6993#endif
6994#ifdef TARGET_NR_semop
6995 case TARGET_NR_semop:
c7128c9f 6996 ret = do_semop(arg1, arg2, arg3);
e5289087
AJ		 6997 break;
6998#endif
6999#ifdef TARGET_NR_semctl
7000 case TARGET_NR_semctl:
7001 ret = do_semctl(arg1, arg2, arg3, (union target_semun)(abi_ulong)arg4);
7002 break;
7003#endif
eeb438c1
AJ		 7004#ifdef TARGET_NR_msgctl
7005 case TARGET_NR_msgctl:
7006 ret = do_msgctl(arg1, arg2, arg3);
7007 break;
7008#endif
7009#ifdef TARGET_NR_msgget
7010 case TARGET_NR_msgget:
7011 ret = get_errno(msgget(arg1, arg2));
7012 break;
7013#endif
7014#ifdef TARGET_NR_msgrcv
7015 case TARGET_NR_msgrcv:
7016 ret = do_msgrcv(arg1, arg2, arg3, arg4, arg5);
7017 break;
7018#endif
7019#ifdef TARGET_NR_msgsnd
7020 case TARGET_NR_msgsnd:
7021 ret = do_msgsnd(arg1, arg2, arg3, arg4);
7022 break;
88a8c984
RV		 7023#endif
7024#ifdef TARGET_NR_shmget
7025 case TARGET_NR_shmget:
7026 ret = get_errno(shmget(arg1, arg2, arg3));
7027 break;
7028#endif
7029#ifdef TARGET_NR_shmctl
7030 case TARGET_NR_shmctl:
7031 ret = do_shmctl(arg1, arg2, arg3);
7032 break;
7033#endif
7034#ifdef TARGET_NR_shmat
7035 case TARGET_NR_shmat:
7036 ret = do_shmat(arg1, arg2, arg3);
7037 break;
7038#endif
7039#ifdef TARGET_NR_shmdt
7040 case TARGET_NR_shmdt:
7041 ret = do_shmdt(arg1);
7042 break;
eeb438c1 7043#endif
31e31b8a
FB		 7044 case TARGET_NR_fsync:
7045 ret = get_errno(fsync(arg1));
7046 break;
31e31b8a 7047 case TARGET_NR_clone:
4ce6243d
PM		 7048 /* Linux manages to have three different orderings for its
7049 * arguments to clone(); the BACKWARDS and BACKWARDS2 defines
7050 * match the kernel's CONFIG_CLONE_* settings.
7051 * Microblaze is further special in that it uses a sixth
7052 * implicit argument to clone for the TLS pointer.
7053 */
7054#if defined(TARGET_MICROBLAZE)
a5b3bdcb 7055 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg4, arg6, arg5));
4ce6243d
PM		 7056#elif defined(TARGET_CLONE_BACKWARDS)
7057 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg4, arg5));
7058#elif defined(TARGET_CLONE_BACKWARDS2)
a4c075f1 7059 ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg5, arg4));
0b6d3ae0 7060#else
4ce6243d 7061 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg5, arg4));
0b6d3ae0 7062#endif
1b6b029e 7063 break;
ec86b0fb
FB		 7064#ifdef __NR_exit_group
7065 /* new thread calls */
7066 case TARGET_NR_exit_group:
9788c9ca 7067#ifdef TARGET_GPROF
6d946cda
AJ		 7068 _mcleanup();
7069#endif
e9009676 7070 gdb_exit(cpu_env, arg1);
ec86b0fb
FB		 7071 ret = get_errno(exit_group(arg1));
7072 break;
7073#endif
31e31b8a 7074 case TARGET_NR_setdomainname:
579a97f7
FB		 7075 if (!(p = lock_user_string(arg1)))
7076 goto efault;
53a5960a
PB		 7077 ret = get_errno(setdomainname(p, arg2));
7078 unlock_user(p, arg1, 0);
31e31b8a
FB		 7079 break;
7080 case TARGET_NR_uname:
7081 /* no need to transcode because we use the linux syscall */
29e619b1
FB		 7082 {
7083 struct new_utsname * buf;
3b46e624 7084
579a97f7
FB		 7085 if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0))
7086 goto efault;
29e619b1
FB		 7087 ret = get_errno(sys_uname(buf));
7088 if (!is_error(ret)) {
7089 /* Overrite the native machine name with whatever is being
7090 emulated. */
da79030f 7091 strcpy (buf->machine, cpu_to_uname_machine(cpu_env));
c5937220
PB		 7092 /* Allow the user to override the reported release. */
7093 if (qemu_uname_release && *qemu_uname_release)
7094 strcpy (buf->release, qemu_uname_release);
29e619b1 7095 }
53a5960a 7096 unlock_user_struct(buf, arg1, 1);
29e619b1 7097 }
31e31b8a 7098 break;
6dbad63e 7099#ifdef TARGET_I386
31e31b8a 7100 case TARGET_NR_modify_ldt:
03acab66 7101 ret = do_modify_ldt(cpu_env, arg1, arg2, arg3);
5cd4393b 7102 break;
84409ddb 7103#if !defined(TARGET_X86_64)
5cd4393b
FB		 7104 case TARGET_NR_vm86old:
7105 goto unimplemented;
7106 case TARGET_NR_vm86:
53a5960a 7107 ret = do_vm86(cpu_env, arg1, arg2);
6dbad63e 7108 break;
84409ddb 7109#endif
6dbad63e 7110#endif
31e31b8a
FB		 7111 case TARGET_NR_adjtimex:
7112 goto unimplemented;
e5febef5 7113#ifdef TARGET_NR_create_module
31e31b8a 7114 case TARGET_NR_create_module:
e5febef5 7115#endif
31e31b8a
FB		 7116 case TARGET_NR_init_module:
7117 case TARGET_NR_delete_module:
e5febef5 7118#ifdef TARGET_NR_get_kernel_syms
31e31b8a 7119 case TARGET_NR_get_kernel_syms:
e5febef5 7120#endif
31e31b8a
FB		 7121 goto unimplemented;
7122 case TARGET_NR_quotactl:
7123 goto unimplemented;
7124 case TARGET_NR_getpgid:
7125 ret = get_errno(getpgid(arg1));
7126 break;
7127 case TARGET_NR_fchdir:
7128 ret = get_errno(fchdir(arg1));
7129 break;
84409ddb 7130#ifdef TARGET_NR_bdflush /* not on x86_64 */
31e31b8a
FB		 7131 case TARGET_NR_bdflush:
7132 goto unimplemented;
84409ddb 7133#endif
e5febef5 7134#ifdef TARGET_NR_sysfs
31e31b8a
FB		 7135 case TARGET_NR_sysfs:
7136 goto unimplemented;
e5febef5 7137#endif
31e31b8a 7138 case TARGET_NR_personality:
1b6b029e 7139 ret = get_errno(personality(arg1));
31e31b8a 7140 break;
e5febef5 7141#ifdef TARGET_NR_afs_syscall
31e31b8a
FB		 7142 case TARGET_NR_afs_syscall:
7143 goto unimplemented;
e5febef5 7144#endif
7a3148a9 7145#ifdef TARGET_NR__llseek /* Not on alpha */
31e31b8a
FB		 7146 case TARGET_NR__llseek:
7147 {
0c1592d9 7148 int64_t res;
d35b261c 7149#if !defined(__NR_llseek)
0c1592d9
PM		 7150 res = lseek(arg1, ((uint64_t)arg2 << 32) | arg3, arg5);
7151 if (res == -1) {
7152 ret = get_errno(res);
7153 } else {
7154 ret = 0;
7155 }
4f2ac237 7156#else
31e31b8a 7157 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
4f2ac237 7158#endif
0c1592d9
PM		 7159 if ((ret == 0) && put_user_s64(res, arg4)) {
7160 goto efault;
7161 }
31e31b8a
FB		 7162 }
7163 break;
7a3148a9 7164#endif
31e31b8a 7165 case TARGET_NR_getdents:
3307e236 7166#ifdef __NR_getdents
d83c8733 7167#if TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64
4add45b4 7168 {
53a5960a 7169 struct target_dirent *target_dirp;
6556a833 7170 struct linux_dirent *dirp;
992f48a0 7171 abi_long count = arg3;
4add45b4
FB		 7172
7173 dirp = malloc(count);
0da46a6e 7174 if (!dirp) {
579a97f7 7175 ret = -TARGET_ENOMEM;
0da46a6e
TS		 7176 goto fail;
7177 }
3b46e624 7178
4add45b4
FB		 7179 ret = get_errno(sys_getdents(arg1, dirp, count));
7180 if (!is_error(ret)) {
6556a833 7181 struct linux_dirent *de;
4add45b4
FB		 7182 struct target_dirent *tde;
7183 int len = ret;
7184 int reclen, treclen;
7185 int count1, tnamelen;
7186
7187 count1 = 0;
7188 de = dirp;
579a97f7
FB		 7189 if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
7190 goto efault;
4add45b4
FB		 7191 tde = target_dirp;
7192 while (len > 0) {
7193 reclen = de->d_reclen;
333858b7
DL		 7194 tnamelen = reclen - offsetof(struct linux_dirent, d_name);
7195 assert(tnamelen >= 0);
7196 treclen = tnamelen + offsetof(struct target_dirent, d_name);
7197 assert(count1 + treclen <= count);
4add45b4 7198 tde->d_reclen = tswap16(treclen);
cbb21eed
MB		 7199 tde->d_ino = tswapal(de->d_ino);
7200 tde->d_off = tswapal(de->d_off);
333858b7 7201 memcpy(tde->d_name, de->d_name, tnamelen);
6556a833 7202 de = (struct linux_dirent *)((char *)de + reclen);
4add45b4 7203 len -= reclen;
1c5bf3bf 7204 tde = (struct target_dirent *)((char *)tde + treclen);
4add45b4
FB		 7205 count1 += treclen;
7206 }
7207 ret = count1;
579a97f7 7208 unlock_user(target_dirp, arg2, ret);
4add45b4
FB		 7209 }
7210 free(dirp);
7211 }
7212#else
31e31b8a 7213 {
6556a833 7214 struct linux_dirent *dirp;
992f48a0 7215 abi_long count = arg3;
dab2ed99 7216
579a97f7
FB		 7217 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
7218 goto efault;
72f03900 7219 ret = get_errno(sys_getdents(arg1, dirp, count));
31e31b8a 7220 if (!is_error(ret)) {
6556a833 7221 struct linux_dirent *de;
31e31b8a
FB		 7222 int len = ret;
7223 int reclen;
7224 de = dirp;
7225 while (len > 0) {
8083a3e5 7226 reclen = de->d_reclen;
31e31b8a
FB		 7227 if (reclen > len)
7228 break;
8083a3e5 7229 de->d_reclen = tswap16(reclen);
31e31b8a
FB		 7230 tswapls(&de->d_ino);
7231 tswapls(&de->d_off);
6556a833 7232 de = (struct linux_dirent *)((char *)de + reclen);
31e31b8a
FB		 7233 len -= reclen;
7234 }
7235 }
53a5960a 7236 unlock_user(dirp, arg2, ret);
3307e236
PM		 7237 }
7238#endif
7239#else
7240 /* Implement getdents in terms of getdents64 */
7241 {
7242 struct linux_dirent64 *dirp;
7243 abi_long count = arg3;
7244
7245 dirp = lock_user(VERIFY_WRITE, arg2, count, 0);
7246 if (!dirp) {
7247 goto efault;
7248 }
7249 ret = get_errno(sys_getdents64(arg1, dirp, count));
7250 if (!is_error(ret)) {
7251 /* Convert the dirent64 structs to target dirent. We do this
7252 * in-place, since we can guarantee that a target_dirent is no
7253 * larger than a dirent64; however this means we have to be
7254 * careful to read everything before writing in the new format.
7255 */
7256 struct linux_dirent64 *de;
7257 struct target_dirent *tde;
7258 int len = ret;
7259 int tlen = 0;
7260
7261 de = dirp;
7262 tde = (struct target_dirent *)dirp;
7263 while (len > 0) {
7264 int namelen, treclen;
7265 int reclen = de->d_reclen;
7266 uint64_t ino = de->d_ino;
7267 int64_t off = de->d_off;
7268 uint8_t type = de->d_type;
7269
7270 namelen = strlen(de->d_name);
7271 treclen = offsetof(struct target_dirent, d_name)
7272 + namelen + 2;
7273 treclen = QEMU_ALIGN_UP(treclen, sizeof(abi_long));
7274
7275 memmove(tde->d_name, de->d_name, namelen + 1);
7276 tde->d_ino = tswapal(ino);
7277 tde->d_off = tswapal(off);
7278 tde->d_reclen = tswap16(treclen);
7279 /* The target_dirent type is in what was formerly a padding
7280 * byte at the end of the structure:
7281 */
7282 *(((char *)tde) + treclen - 1) = type;
7283
7284 de = (struct linux_dirent64 *)((char *)de + reclen);
7285 tde = (struct target_dirent *)((char *)tde + treclen);
7286 len -= reclen;
7287 tlen += treclen;
7288 }
7289 ret = tlen;
7290 }
7291 unlock_user(dirp, arg2, ret);
31e31b8a 7292 }
4add45b4 7293#endif
31e31b8a 7294 break;
3ae43202 7295#if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
dab2ed99
FB		 7296 case TARGET_NR_getdents64:
7297 {
6556a833 7298 struct linux_dirent64 *dirp;
992f48a0 7299 abi_long count = arg3;
579a97f7
FB		 7300 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
7301 goto efault;
dab2ed99
FB		 7302 ret = get_errno(sys_getdents64(arg1, dirp, count));
7303 if (!is_error(ret)) {
6556a833 7304 struct linux_dirent64 *de;
dab2ed99
FB		 7305 int len = ret;
7306 int reclen;
7307 de = dirp;
7308 while (len > 0) {
8083a3e5 7309 reclen = de->d_reclen;
dab2ed99
FB		 7310 if (reclen > len)
7311 break;
8083a3e5 7312 de->d_reclen = tswap16(reclen);
8582a53a
FB		 7313 tswap64s((uint64_t *)&de->d_ino);
7314 tswap64s((uint64_t *)&de->d_off);
6556a833 7315 de = (struct linux_dirent64 *)((char *)de + reclen);
dab2ed99
FB		 7316 len -= reclen;
7317 }
7318 }
53a5960a 7319 unlock_user(dirp, arg2, ret);
dab2ed99
FB		 7320 }
7321 break;
a541f297 7322#endif /* TARGET_NR_getdents64 */
9468a5d4 7323#if defined(TARGET_NR__newselect)
31e31b8a 7324 case TARGET_NR__newselect:
53a5960a 7325 ret = do_select(arg1, arg2, arg3, arg4, arg5);
31e31b8a 7326 break;
e5febef5 7327#endif
d8035d4c
MF		 7328#if defined(TARGET_NR_poll) || defined(TARGET_NR_ppoll)
7329# ifdef TARGET_NR_poll
9de5e440 7330 case TARGET_NR_poll:
d8035d4c
MF		 7331# endif
7332# ifdef TARGET_NR_ppoll
7333 case TARGET_NR_ppoll:
7334# endif
9de5e440 7335 {
53a5960a 7336 struct target_pollfd *target_pfd;
9de5e440
FB		 7337 unsigned int nfds = arg2;
7338 int timeout = arg3;
7339 struct pollfd *pfd;
7854b056 7340 unsigned int i;
9de5e440 7341
579a97f7
FB		 7342 target_pfd = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_pollfd) * nfds, 1);
7343 if (!target_pfd)
7344 goto efault;
d8035d4c 7345
9de5e440
FB		 7346 pfd = alloca(sizeof(struct pollfd) * nfds);
7347 for(i = 0; i < nfds; i++) {
5cd4393b
FB		 7348 pfd[i].fd = tswap32(target_pfd[i].fd);
7349 pfd[i].events = tswap16(target_pfd[i].events);
9de5e440 7350 }
d8035d4c
MF		 7351
7352# ifdef TARGET_NR_ppoll
7353 if (num == TARGET_NR_ppoll) {
7354 struct timespec _timeout_ts, *timeout_ts = &_timeout_ts;
7355 target_sigset_t *target_set;
7356 sigset_t _set, *set = &_set;
7357
7358 if (arg3) {
7359 if (target_to_host_timespec(timeout_ts, arg3)) {
7360 unlock_user(target_pfd, arg1, 0);
7361 goto efault;
7362 }
7363 } else {
7364 timeout_ts = NULL;
7365 }
7366
7367 if (arg4) {
7368 target_set = lock_user(VERIFY_READ, arg4, sizeof(target_sigset_t), 1);
7369 if (!target_set) {
7370 unlock_user(target_pfd, arg1, 0);
7371 goto efault;
7372 }
7373 target_to_host_sigset(set, target_set);
7374 } else {
7375 set = NULL;
7376 }
7377
7378 ret = get_errno(sys_ppoll(pfd, nfds, timeout_ts, set, _NSIG/8));
7379
7380 if (!is_error(ret) && arg3) {
7381 host_to_target_timespec(arg3, timeout_ts);
7382 }
7383 if (arg4) {
7384 unlock_user(target_set, arg4, 0);
7385 }
7386 } else
7387# endif
7388 ret = get_errno(poll(pfd, nfds, timeout));
7389
9de5e440
FB		 7390 if (!is_error(ret)) {
7391 for(i = 0; i < nfds; i++) {
5cd4393b 7392 target_pfd[i].revents = tswap16(pfd[i].revents);
9de5e440
FB		 7393 }
7394 }
30cb4cde 7395 unlock_user(target_pfd, arg1, sizeof(struct target_pollfd) * nfds);
9de5e440
FB		 7396 }
7397 break;
e5febef5 7398#endif
31e31b8a 7399 case TARGET_NR_flock:
9de5e440
FB		 7400 /* NOTE: the flock constant seems to be the same for every
7401 Linux platform */
7402 ret = get_errno(flock(arg1, arg2));
31e31b8a
FB		 7403 break;
7404 case TARGET_NR_readv:
7405 {
f287b2c2
RH		 7406 struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0);
7407 if (vec != NULL) {
7408 ret = get_errno(readv(arg1, vec, arg3));
7409 unlock_iovec(vec, arg2, arg3, 1);
7410 } else {
7411 ret = -host_to_target_errno(errno);
7412 }
31e31b8a
FB		 7413 }
7414 break;
7415 case TARGET_NR_writev:
7416 {
f287b2c2
RH		 7417 struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
7418 if (vec != NULL) {
7419 ret = get_errno(writev(arg1, vec, arg3));
7420 unlock_iovec(vec, arg2, arg3, 0);
7421 } else {
7422 ret = -host_to_target_errno(errno);
7423 }
31e31b8a
FB		 7424 }
7425 break;
7426 case TARGET_NR_getsid:
7427 ret = get_errno(getsid(arg1));
7428 break;
7a3148a9 7429#if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */
31e31b8a 7430 case TARGET_NR_fdatasync:
5cd4393b
FB		 7431 ret = get_errno(fdatasync(arg1));
7432 break;
7a3148a9 7433#endif
31e31b8a 7434 case TARGET_NR__sysctl:
0da46a6e 7435 /* We don't implement this, but ENOTDIR is always a safe
29e619b1 7436 return value. */
0da46a6e
TS		 7437 ret = -TARGET_ENOTDIR;
7438 break;
737de1d1
MF		 7439 case TARGET_NR_sched_getaffinity:
7440 {
7441 unsigned int mask_size;
7442 unsigned long *mask;
7443
7444 /*
7445 * sched_getaffinity needs multiples of ulong, so need to take
7446 * care of mismatches between target ulong and host ulong sizes.
7447 */
7448 if (arg2 & (sizeof(abi_ulong) - 1)) {
7449 ret = -TARGET_EINVAL;
7450 break;
7451 }
7452 mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
7453
7454 mask = alloca(mask_size);
7455 ret = get_errno(sys_sched_getaffinity(arg1, mask_size, mask));
7456
7457 if (!is_error(ret)) {
cd18f05e 7458 if (copy_to_user(arg3, mask, ret)) {
737de1d1
MF		 7459 goto efault;
7460 }
737de1d1
MF		 7461 }
7462 }
7463 break;
7464 case TARGET_NR_sched_setaffinity:
7465 {
7466 unsigned int mask_size;
7467 unsigned long *mask;
7468
7469 /*
7470 * sched_setaffinity needs multiples of ulong, so need to take
7471 * care of mismatches between target ulong and host ulong sizes.
7472 */
7473 if (arg2 & (sizeof(abi_ulong) - 1)) {
7474 ret = -TARGET_EINVAL;
7475 break;
7476 }
7477 mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
7478
7479 mask = alloca(mask_size);
7480 if (!lock_user_struct(VERIFY_READ, p, arg3, 1)) {
7481 goto efault;
7482 }
7483 memcpy(mask, p, arg2);
7484 unlock_user_struct(p, arg2, 0);
7485
7486 ret = get_errno(sys_sched_setaffinity(arg1, mask_size, mask));
7487 }
7488 break;
31e31b8a 7489 case TARGET_NR_sched_setparam:
5cd4393b 7490 {
53a5960a 7491 struct sched_param *target_schp;
5cd4393b 7492 struct sched_param schp;
53a5960a 7493
579a97f7
FB		 7494 if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1))
7495 goto efault;
5cd4393b 7496 schp.sched_priority = tswap32(target_schp->sched_priority);
53a5960a 7497 unlock_user_struct(target_schp, arg2, 0);
5cd4393b
FB		 7498 ret = get_errno(sched_setparam(arg1, &schp));
7499 }
7500 break;
31e31b8a 7501 case TARGET_NR_sched_getparam:
5cd4393b 7502 {
53a5960a 7503 struct sched_param *target_schp;
5cd4393b
FB		 7504 struct sched_param schp;
7505 ret = get_errno(sched_getparam(arg1, &schp));
7506 if (!is_error(ret)) {
579a97f7
FB		 7507 if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0))
7508 goto efault;
5cd4393b 7509 target_schp->sched_priority = tswap32(schp.sched_priority);
53a5960a 7510 unlock_user_struct(target_schp, arg2, 1);
5cd4393b
FB		 7511 }
7512 }
7513 break;
31e31b8a 7514 case TARGET_NR_sched_setscheduler:
5cd4393b 7515 {
53a5960a 7516 struct sched_param *target_schp;
5cd4393b 7517 struct sched_param schp;
579a97f7
FB		 7518 if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1))
7519 goto efault;
5cd4393b 7520 schp.sched_priority = tswap32(target_schp->sched_priority);
53a5960a 7521 unlock_user_struct(target_schp, arg3, 0);
5cd4393b
FB		 7522 ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
7523 }
7524 break;
31e31b8a 7525 case TARGET_NR_sched_getscheduler:
5cd4393b
FB		 7526 ret = get_errno(sched_getscheduler(arg1));
7527 break;
31e31b8a
FB		 7528 case TARGET_NR_sched_yield:
7529 ret = get_errno(sched_yield());
7530 break;
7531 case TARGET_NR_sched_get_priority_max:
5cd4393b
FB		 7532 ret = get_errno(sched_get_priority_max(arg1));
7533 break;
31e31b8a 7534 case TARGET_NR_sched_get_priority_min:
5cd4393b
FB		 7535 ret = get_errno(sched_get_priority_min(arg1));
7536 break;
31e31b8a 7537 case TARGET_NR_sched_rr_get_interval:
5cd4393b 7538 {
5cd4393b
FB		 7539 struct timespec ts;
7540 ret = get_errno(sched_rr_get_interval(arg1, &ts));
7541 if (!is_error(ret)) {
53a5960a 7542 host_to_target_timespec(arg2, &ts);
5cd4393b
FB		 7543 }
7544 }
7545 break;
31e31b8a 7546 case TARGET_NR_nanosleep:
1b6b029e 7547 {
1b6b029e 7548 struct timespec req, rem;
53a5960a 7549 target_to_host_timespec(&req, arg1);
1b6b029e 7550 ret = get_errno(nanosleep(&req, &rem));
53a5960a
PB		 7551 if (is_error(ret) && arg2) {
7552 host_to_target_timespec(arg2, &rem);
1b6b029e
FB		 7553 }
7554 }
7555 break;
e5febef5 7556#ifdef TARGET_NR_query_module
31e31b8a 7557 case TARGET_NR_query_module:
5cd4393b 7558 goto unimplemented;
e5febef5
TS		 7559#endif
7560#ifdef TARGET_NR_nfsservctl
31e31b8a 7561 case TARGET_NR_nfsservctl:
5cd4393b 7562 goto unimplemented;
e5febef5 7563#endif
31e31b8a 7564 case TARGET_NR_prctl:
1e6722f8
PM		 7565 switch (arg1) {
7566 case PR_GET_PDEATHSIG:
7567 {
7568 int deathsig;
7569 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5));
7570 if (!is_error(ret) && arg2
7571 && put_user_ual(deathsig, arg2)) {
7572 goto efault;
e5574487 7573 }
1e6722f8
PM		 7574 break;
7575 }
db9526b1
PM		 7576#ifdef PR_GET_NAME
7577 case PR_GET_NAME:
7578 {
7579 void *name = lock_user(VERIFY_WRITE, arg2, 16, 1);
7580 if (!name) {
7581 goto efault;
7582 }
7583 ret = get_errno(prctl(arg1, (unsigned long)name,
7584 arg3, arg4, arg5));
7585 unlock_user(name, arg2, 16);
7586 break;
7587 }
7588 case PR_SET_NAME:
7589 {
7590 void *name = lock_user(VERIFY_READ, arg2, 16, 1);
7591 if (!name) {
7592 goto efault;
7593 }
7594 ret = get_errno(prctl(arg1, (unsigned long)name,
7595 arg3, arg4, arg5));
7596 unlock_user(name, arg2, 0);
7597 break;
7598 }
7599#endif
1e6722f8
PM		 7600 default:
7601 /* Most prctl options have no pointer arguments */
7602 ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5));
7603 break;
7604 }
39b9aae1 7605 break;
d2fd1af7
FB		 7606#ifdef TARGET_NR_arch_prctl
7607 case TARGET_NR_arch_prctl:
7608#if defined(TARGET_I386) && !defined(TARGET_ABI32)
7609 ret = do_arch_prctl(cpu_env, arg1, arg2);
7610 break;
7611#else
7612 goto unimplemented;
7613#endif
7614#endif
f2c7ba15
AJ		 7615#ifdef TARGET_NR_pread64
7616 case TARGET_NR_pread64:
ae017a5b
AG		 7617 if (regpairs_aligned(cpu_env)) {
7618 arg4 = arg5;
7619 arg5 = arg6;
7620 }
f2c7ba15
AJ		 7621 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
7622 goto efault;
7623 ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5)));
7624 unlock_user(p, arg2, ret);
7625 break;
7626 case TARGET_NR_pwrite64:
ae017a5b
AG		 7627 if (regpairs_aligned(cpu_env)) {
7628 arg4 = arg5;
7629 arg5 = arg6;
7630 }
f2c7ba15
AJ		 7631 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
7632 goto efault;
7633 ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5)));
7634 unlock_user(p, arg2, 0);
7635 break;
67867308 7636#endif
31e31b8a 7637 case TARGET_NR_getcwd:
579a97f7
FB		 7638 if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0)))
7639 goto efault;
53a5960a
PB		 7640 ret = get_errno(sys_getcwd1(p, arg2));
7641 unlock_user(p, arg1, ret);
31e31b8a
FB		 7642 break;
7643 case TARGET_NR_capget:
5cd4393b 7644 goto unimplemented;
31e31b8a 7645 case TARGET_NR_capset:
5cd4393b 7646 goto unimplemented;
31e31b8a 7647 case TARGET_NR_sigaltstack:
198a74de 7648#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_MIPS) || \
c761c154 7649 defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA) || \
d962783e 7650 defined(TARGET_M68K) || defined(TARGET_S390X) || defined(TARGET_OPENRISC)
9349b4f9 7651 ret = do_sigaltstack(arg1, arg2, get_sp_from_cpustate((CPUArchState *)cpu_env));
a04e134a
TS		 7652 break;
7653#else
5cd4393b 7654 goto unimplemented;
a04e134a 7655#endif
a8fd1aba
PM		 7656
7657#ifdef CONFIG_SENDFILE
7658 case TARGET_NR_sendfile:
7659 {
7660 off_t *offp = NULL;
7661 off_t off;
7662 if (arg3) {
7663 ret = get_user_sal(off, arg3);
7664 if (is_error(ret)) {
7665 break;
7666 }
7667 offp = &off;
7668 }
7669 ret = get_errno(sendfile(arg1, arg2, offp, arg4));
7670 if (!is_error(ret) && arg3) {
7671 abi_long ret2 = put_user_sal(off, arg3);
7672 if (is_error(ret2)) {
7673 ret = ret2;
7674 }
7675 }
7676 break;
7677 }
7678#ifdef TARGET_NR_sendfile64
7679 case TARGET_NR_sendfile64:
7680 {
7681 off_t *offp = NULL;
7682 off_t off;
7683 if (arg3) {
7684 ret = get_user_s64(off, arg3);
7685 if (is_error(ret)) {
7686 break;
7687 }
7688 offp = &off;
7689 }
7690 ret = get_errno(sendfile(arg1, arg2, offp, arg4));
7691 if (!is_error(ret) && arg3) {
7692 abi_long ret2 = put_user_s64(off, arg3);
7693 if (is_error(ret2)) {
7694 ret = ret2;
7695 }
7696 }
7697 break;
7698 }
7699#endif
7700#else
31e31b8a 7701 case TARGET_NR_sendfile:
7edd2cf1 7702#ifdef TARGET_NR_sendfile64
a8fd1aba
PM		 7703 case TARGET_NR_sendfile64:
7704#endif
5cd4393b 7705 goto unimplemented;
a8fd1aba
PM		 7706#endif
7707
ebc05488 7708#ifdef TARGET_NR_getpmsg
31e31b8a 7709 case TARGET_NR_getpmsg:
5cd4393b 7710 goto unimplemented;
ebc05488
FB		 7711#endif
7712#ifdef TARGET_NR_putpmsg
31e31b8a 7713 case TARGET_NR_putpmsg:
5cd4393b 7714 goto unimplemented;
ebc05488 7715#endif
048f6b4d 7716#ifdef TARGET_NR_vfork
31e31b8a 7717 case TARGET_NR_vfork:
d865bab5
PB		 7718 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD,
7719 0, 0, 0, 0));
31e31b8a 7720 break;
048f6b4d 7721#endif
ebc05488 7722#ifdef TARGET_NR_ugetrlimit
31e31b8a 7723 case TARGET_NR_ugetrlimit:
728584be
FB		 7724 {
7725 struct rlimit rlim;
e22b7015
WT		 7726 int resource = target_to_host_resource(arg1);
7727 ret = get_errno(getrlimit(resource, &rlim));
728584be 7728 if (!is_error(ret)) {
53a5960a 7729 struct target_rlimit *target_rlim;
579a97f7
FB		 7730 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
7731 goto efault;
81bbe906
TY		 7732 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
7733 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
53a5960a 7734 unlock_user_struct(target_rlim, arg2, 1);
728584be
FB		 7735 }
7736 break;
7737 }
ebc05488 7738#endif
a315a145 7739#ifdef TARGET_NR_truncate64
31e31b8a 7740 case TARGET_NR_truncate64:
579a97f7
FB		 7741 if (!(p = lock_user_string(arg1)))
7742 goto efault;
53a5960a
PB		 7743 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
7744 unlock_user(p, arg1, 0);
667f38b1 7745 break;
a315a145
FB		 7746#endif
7747#ifdef TARGET_NR_ftruncate64
31e31b8a 7748 case TARGET_NR_ftruncate64:
ce4defa0 7749 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
667f38b1 7750 break;
a315a145
FB		 7751#endif
7752#ifdef TARGET_NR_stat64
31e31b8a 7753 case TARGET_NR_stat64:
579a97f7
FB		 7754 if (!(p = lock_user_string(arg1)))
7755 goto efault;
53a5960a
PB		 7756 ret = get_errno(stat(path(p), &st));
7757 unlock_user(p, arg1, 0);
6a24a778
AZ		 7758 if (!is_error(ret))
7759 ret = host_to_target_stat64(cpu_env, arg2, &st);
7760 break;
a315a145
FB		 7761#endif
7762#ifdef TARGET_NR_lstat64
31e31b8a 7763 case TARGET_NR_lstat64:
579a97f7
FB		 7764 if (!(p = lock_user_string(arg1)))
7765 goto efault;
53a5960a
PB		 7766 ret = get_errno(lstat(path(p), &st));
7767 unlock_user(p, arg1, 0);
6a24a778
AZ		 7768 if (!is_error(ret))
7769 ret = host_to_target_stat64(cpu_env, arg2, &st);
7770 break;
a315a145
FB		 7771#endif
7772#ifdef TARGET_NR_fstat64
31e31b8a 7773 case TARGET_NR_fstat64:
6a24a778
AZ		 7774 ret = get_errno(fstat(arg1, &st));
7775 if (!is_error(ret))
7776 ret = host_to_target_stat64(cpu_env, arg2, &st);
7777 break;
ce4defa0 7778#endif
c0d472b1 7779#if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat))
9d33b76b 7780#ifdef TARGET_NR_fstatat64
6a24a778 7781 case TARGET_NR_fstatat64:
9d33b76b
AJ		 7782#endif
7783#ifdef TARGET_NR_newfstatat
7784 case TARGET_NR_newfstatat:
7785#endif
6a24a778
AZ		 7786 if (!(p = lock_user_string(arg2)))
7787 goto efault;
c0d472b1 7788 ret = get_errno(fstatat(arg1, path(p), &st, arg4));
6a24a778
AZ		 7789 if (!is_error(ret))
7790 ret = host_to_target_stat64(cpu_env, arg3, &st);
60cd49d5 7791 break;
a315a145 7792#endif
67867308 7793 case TARGET_NR_lchown:
579a97f7
FB		 7794 if (!(p = lock_user_string(arg1)))
7795 goto efault;
53a5960a
PB		 7796 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
7797 unlock_user(p, arg1, 0);
67867308 7798 break;
0c866a7e 7799#ifdef TARGET_NR_getuid
67867308
FB		 7800 case TARGET_NR_getuid:
7801 ret = get_errno(high2lowuid(getuid()));
7802 break;
0c866a7e
RV		 7803#endif
7804#ifdef TARGET_NR_getgid
67867308
FB		 7805 case TARGET_NR_getgid:
7806 ret = get_errno(high2lowgid(getgid()));
7807 break;
0c866a7e
RV		 7808#endif
7809#ifdef TARGET_NR_geteuid
67867308
FB		 7810 case TARGET_NR_geteuid:
7811 ret = get_errno(high2lowuid(geteuid()));
7812 break;
0c866a7e
RV		 7813#endif
7814#ifdef TARGET_NR_getegid
67867308
FB		 7815 case TARGET_NR_getegid:
7816 ret = get_errno(high2lowgid(getegid()));
7817 break;
0c866a7e 7818#endif
67867308
FB		 7819 case TARGET_NR_setreuid:
7820 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
7821 break;
7822 case TARGET_NR_setregid:
7823 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
7824 break;
7825 case TARGET_NR_getgroups:
7826 {
7827 int gidsetsize = arg1;
0c866a7e 7828 target_id *target_grouplist;
67867308
FB		 7829 gid_t *grouplist;
7830 int i;
7831
7832 grouplist = alloca(gidsetsize * sizeof(gid_t));
7833 ret = get_errno(getgroups(gidsetsize, grouplist));
cb3bc233
AZ		 7834 if (gidsetsize == 0)
7835 break;
67867308 7836 if (!is_error(ret)) {
03903ffc 7837 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * sizeof(target_id), 0);
579a97f7
FB		 7838 if (!target_grouplist)
7839 goto efault;
a2155fcc 7840 for(i = 0;i < ret; i++)
0c866a7e 7841 target_grouplist[i] = tswapid(high2lowgid(grouplist[i]));
03903ffc 7842 unlock_user(target_grouplist, arg2, gidsetsize * sizeof(target_id));
67867308
FB		 7843 }
7844 }
7845 break;
7846 case TARGET_NR_setgroups:
7847 {
7848 int gidsetsize = arg1;
0c866a7e 7849 target_id *target_grouplist;
f2b79ce9 7850 gid_t *grouplist = NULL;
67867308 7851 int i;
f2b79ce9
DA		 7852 if (gidsetsize) {
7853 grouplist = alloca(gidsetsize * sizeof(gid_t));
03903ffc 7854 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * sizeof(target_id), 1);
f2b79ce9
DA		 7855 if (!target_grouplist) {
7856 ret = -TARGET_EFAULT;
7857 goto fail;
7858 }
7859 for (i = 0; i < gidsetsize; i++) {
7860 grouplist[i] = low2highgid(tswapid(target_grouplist[i]));
7861 }
7862 unlock_user(target_grouplist, arg2, 0);
579a97f7 7863 }
67867308
FB		 7864 ret = get_errno(setgroups(gidsetsize, grouplist));
7865 }
7866 break;
7867 case TARGET_NR_fchown:
7868 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
7869 break;
c0d472b1 7870#if defined(TARGET_NR_fchownat)
ccfa72b7 7871 case TARGET_NR_fchownat:
579a97f7
FB		 7872 if (!(p = lock_user_string(arg2)))
7873 goto efault;
c0d472b1
PM		 7874 ret = get_errno(fchownat(arg1, p, low2highuid(arg3),
7875 low2highgid(arg4), arg5));
579a97f7 7876 unlock_user(p, arg2, 0);
ccfa72b7
TS		 7877 break;
7878#endif
67867308
FB		 7879#ifdef TARGET_NR_setresuid
7880 case TARGET_NR_setresuid:
5fafdf24
TS		 7881 ret = get_errno(setresuid(low2highuid(arg1),
7882 low2highuid(arg2),
67867308
FB		 7883 low2highuid(arg3)));
7884 break;
7885#endif
7886#ifdef TARGET_NR_getresuid
7887 case TARGET_NR_getresuid:
7888 {
53a5960a 7889 uid_t ruid, euid, suid;
67867308
FB		 7890 ret = get_errno(getresuid(&ruid, &euid, &suid));
7891 if (!is_error(ret)) {
76ca310a
PM		 7892 if (put_user_id(high2lowuid(ruid), arg1)
7893 || put_user_id(high2lowuid(euid), arg2)
7894 || put_user_id(high2lowuid(suid), arg3))
2f619698 7895 goto efault;
67867308
FB		 7896 }
7897 }
7898 break;
7899#endif
7900#ifdef TARGET_NR_getresgid
7901 case TARGET_NR_setresgid:
5fafdf24
TS		 7902 ret = get_errno(setresgid(low2highgid(arg1),
7903 low2highgid(arg2),
67867308
FB		 7904 low2highgid(arg3)));
7905 break;
7906#endif
7907#ifdef TARGET_NR_getresgid
7908 case TARGET_NR_getresgid:
7909 {
53a5960a 7910 gid_t rgid, egid, sgid;
67867308
FB		 7911 ret = get_errno(getresgid(&rgid, &egid, &sgid));
7912 if (!is_error(ret)) {
76ca310a
PM		 7913 if (put_user_id(high2lowgid(rgid), arg1)
7914 || put_user_id(high2lowgid(egid), arg2)
7915 || put_user_id(high2lowgid(sgid), arg3))
2f619698 7916 goto efault;
67867308
FB		 7917 }
7918 }
7919 break;
7920#endif
7921 case TARGET_NR_chown:
579a97f7
FB		 7922 if (!(p = lock_user_string(arg1)))
7923 goto efault;
53a5960a
PB		 7924 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
7925 unlock_user(p, arg1, 0);
67867308
FB		 7926 break;
7927 case TARGET_NR_setuid:
7928 ret = get_errno(setuid(low2highuid(arg1)));
7929 break;
7930 case TARGET_NR_setgid:
7931 ret = get_errno(setgid(low2highgid(arg1)));
7932 break;
7933 case TARGET_NR_setfsuid:
7934 ret = get_errno(setfsuid(arg1));
7935 break;
7936 case TARGET_NR_setfsgid:
7937 ret = get_errno(setfsgid(arg1));
7938 break;
67867308 7939
a315a145 7940#ifdef TARGET_NR_lchown32
31e31b8a 7941 case TARGET_NR_lchown32:
579a97f7
FB		 7942 if (!(p = lock_user_string(arg1)))
7943 goto efault;
53a5960a
PB		 7944 ret = get_errno(lchown(p, arg2, arg3));
7945 unlock_user(p, arg1, 0);
b03c60f3 7946 break;
a315a145
FB		 7947#endif
7948#ifdef TARGET_NR_getuid32
31e31b8a 7949 case TARGET_NR_getuid32:
b03c60f3
FB		 7950 ret = get_errno(getuid());
7951 break;
a315a145 7952#endif
64b4d28c
AJ		 7953
7954#if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA)
7955 /* Alpha specific */
7956 case TARGET_NR_getxuid:
ba0e276d
RH		 7957 {
7958 uid_t euid;
7959 euid=geteuid();
7960 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=euid;
7961 }
64b4d28c
AJ		 7962 ret = get_errno(getuid());
7963 break;
7964#endif
7965#if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA)
7966 /* Alpha specific */
7967 case TARGET_NR_getxgid:
ba0e276d
RH		 7968 {
7969 uid_t egid;
7970 egid=getegid();
7971 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=egid;
7972 }
64b4d28c
AJ		 7973 ret = get_errno(getgid());
7974 break;
7975#endif
ba0e276d
RH		 7976#if defined(TARGET_NR_osf_getsysinfo) && defined(TARGET_ALPHA)
7977 /* Alpha specific */
7978 case TARGET_NR_osf_getsysinfo:
7979 ret = -TARGET_EOPNOTSUPP;
7980 switch (arg1) {
7981 case TARGET_GSI_IEEE_FP_CONTROL:
7982 {
7983 uint64_t swcr, fpcr = cpu_alpha_load_fpcr (cpu_env);
7984
7985 /* Copied from linux ieee_fpcr_to_swcr. */
7986 swcr = (fpcr >> 35) & SWCR_STATUS_MASK;
7987 swcr |= (fpcr >> 36) & SWCR_MAP_DMZ;
7988 swcr |= (~fpcr >> 48) & (SWCR_TRAP_ENABLE_INV
7989 | SWCR_TRAP_ENABLE_DZE
7990 | SWCR_TRAP_ENABLE_OVF);
7991 swcr |= (~fpcr >> 57) & (SWCR_TRAP_ENABLE_UNF
7992 | SWCR_TRAP_ENABLE_INE);
7993 swcr |= (fpcr >> 47) & SWCR_MAP_UMZ;
7994 swcr |= (~fpcr >> 41) & SWCR_TRAP_ENABLE_DNO;
7995
7996 if (put_user_u64 (swcr, arg2))
7997 goto efault;
7998 ret = 0;
7999 }
8000 break;
8001
8002 /* case GSI_IEEE_STATE_AT_SIGNAL:
8003 -- Not implemented in linux kernel.
8004 case GSI_UACPROC:
8005 -- Retrieves current unaligned access state; not much used.
8006 case GSI_PROC_TYPE:
8007 -- Retrieves implver information; surely not used.
8008 case GSI_GET_HWRPB:
8009 -- Grabs a copy of the HWRPB; surely not used.
8010 */
8011 }
8012 break;
8013#endif
8014#if defined(TARGET_NR_osf_setsysinfo) && defined(TARGET_ALPHA)
8015 /* Alpha specific */
8016 case TARGET_NR_osf_setsysinfo:
8017 ret = -TARGET_EOPNOTSUPP;
8018 switch (arg1) {
8019 case TARGET_SSI_IEEE_FP_CONTROL:
ba0e276d
RH		 8020 {
8021 uint64_t swcr, fpcr, orig_fpcr;
8022
6e06d515 8023 if (get_user_u64 (swcr, arg2)) {
ba0e276d 8024 goto efault;
6e06d515
RH		 8025 }
8026 orig_fpcr = cpu_alpha_load_fpcr(cpu_env);
ba0e276d
RH		 8027 fpcr = orig_fpcr & FPCR_DYN_MASK;
8028
8029 /* Copied from linux ieee_swcr_to_fpcr. */
8030 fpcr |= (swcr & SWCR_STATUS_MASK) << 35;
8031 fpcr |= (swcr & SWCR_MAP_DMZ) << 36;
8032 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_INV
8033 | SWCR_TRAP_ENABLE_DZE
8034 | SWCR_TRAP_ENABLE_OVF)) << 48;
8035 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_UNF
8036 | SWCR_TRAP_ENABLE_INE)) << 57;
8037 fpcr |= (swcr & SWCR_MAP_UMZ ? FPCR_UNDZ | FPCR_UNFD : 0);
8038 fpcr |= (~swcr & SWCR_TRAP_ENABLE_DNO) << 41;
8039
6e06d515 8040 cpu_alpha_store_fpcr(cpu_env, fpcr);
ba0e276d 8041 ret = 0;
6e06d515
RH		 8042 }
8043 break;
8044
8045 case TARGET_SSI_IEEE_RAISE_EXCEPTION:
8046 {
8047 uint64_t exc, fpcr, orig_fpcr;
8048 int si_code;
8049
8050 if (get_user_u64(exc, arg2)) {
8051 goto efault;
8052 }
ba0e276d 8053
6e06d515 8054 orig_fpcr = cpu_alpha_load_fpcr(cpu_env);
ba0e276d 8055
6e06d515
RH		 8056 /* We only add to the exception status here. */
8057 fpcr = orig_fpcr | ((exc & SWCR_STATUS_MASK) << 35);
8058
8059 cpu_alpha_store_fpcr(cpu_env, fpcr);
8060 ret = 0;
8061
8062 /* Old exceptions are not signaled. */
8063 fpcr &= ~(orig_fpcr & FPCR_STATUS_MASK);
8064
8065 /* If any exceptions set by this call,
8066 and are unmasked, send a signal. */
8067 si_code = 0;
8068 if ((fpcr & (FPCR_INE | FPCR_INED)) == FPCR_INE) {
8069 si_code = TARGET_FPE_FLTRES;
8070 }
8071 if ((fpcr & (FPCR_UNF | FPCR_UNFD)) == FPCR_UNF) {
8072 si_code = TARGET_FPE_FLTUND;
8073 }
8074 if ((fpcr & (FPCR_OVF | FPCR_OVFD)) == FPCR_OVF) {
8075 si_code = TARGET_FPE_FLTOVF;
8076 }
8077 if ((fpcr & (FPCR_DZE | FPCR_DZED)) == FPCR_DZE) {
8078 si_code = TARGET_FPE_FLTDIV;
8079 }
8080 if ((fpcr & (FPCR_INV | FPCR_INVD)) == FPCR_INV) {
8081 si_code = TARGET_FPE_FLTINV;
8082 }
8083 if (si_code != 0) {
8084 target_siginfo_t info;
8085 info.si_signo = SIGFPE;
8086 info.si_errno = 0;
8087 info.si_code = si_code;
8088 info._sifields._sigfault._addr
8089 = ((CPUArchState *)cpu_env)->pc;
8090 queue_signal((CPUArchState *)cpu_env, info.si_signo, &info);
ba0e276d
RH		 8091 }
8092 }
8093 break;
8094
8095 /* case SSI_NVPAIRS:
8096 -- Used with SSIN_UACPROC to enable unaligned accesses.
8097 case SSI_IEEE_STATE_AT_SIGNAL:
8098 case SSI_IEEE_IGNORE_STATE_AT_SIGNAL:
8099 -- Not implemented in linux kernel
8100 */
8101 }
8102 break;
8103#endif
8104#ifdef TARGET_NR_osf_sigprocmask
8105 /* Alpha specific. */
8106 case TARGET_NR_osf_sigprocmask:
8107 {
8108 abi_ulong mask;
bc088ba1 8109 int how;
ba0e276d
RH		 8110 sigset_t set, oldset;
8111
8112 switch(arg1) {
8113 case TARGET_SIG_BLOCK:
8114 how = SIG_BLOCK;
8115 break;
8116 case TARGET_SIG_UNBLOCK:
8117 how = SIG_UNBLOCK;
8118 break;
8119 case TARGET_SIG_SETMASK:
8120 how = SIG_SETMASK;
8121 break;
8122 default:
8123 ret = -TARGET_EINVAL;
8124 goto fail;
8125 }
8126 mask = arg2;
8127 target_to_host_old_sigset(&set, &mask);
bc088ba1 8128 sigprocmask(how, &set, &oldset);
ba0e276d
RH		 8129 host_to_target_old_sigset(&mask, &oldset);
8130 ret = mask;
8131 }
8132 break;
8133#endif
64b4d28c 8134
a315a145 8135#ifdef TARGET_NR_getgid32
31e31b8a 8136 case TARGET_NR_getgid32:
b03c60f3
FB		 8137 ret = get_errno(getgid());
8138 break;
a315a145
FB		 8139#endif
8140#ifdef TARGET_NR_geteuid32
31e31b8a 8141 case TARGET_NR_geteuid32:
b03c60f3
FB		 8142 ret = get_errno(geteuid());
8143 break;
a315a145
FB		 8144#endif
8145#ifdef TARGET_NR_getegid32
31e31b8a 8146 case TARGET_NR_getegid32:
b03c60f3
FB		 8147 ret = get_errno(getegid());
8148 break;
a315a145
FB		 8149#endif
8150#ifdef TARGET_NR_setreuid32
31e31b8a 8151 case TARGET_NR_setreuid32:
b03c60f3
FB		 8152 ret = get_errno(setreuid(arg1, arg2));
8153 break;
a315a145
FB		 8154#endif
8155#ifdef TARGET_NR_setregid32
31e31b8a 8156 case TARGET_NR_setregid32:
b03c60f3
FB		 8157 ret = get_errno(setregid(arg1, arg2));
8158 break;
a315a145
FB		 8159#endif
8160#ifdef TARGET_NR_getgroups32
31e31b8a 8161 case TARGET_NR_getgroups32:
99c475ab
FB		 8162 {
8163 int gidsetsize = arg1;
53a5960a 8164 uint32_t *target_grouplist;
99c475ab
FB		 8165 gid_t *grouplist;
8166 int i;
8167
8168 grouplist = alloca(gidsetsize * sizeof(gid_t));
8169 ret = get_errno(getgroups(gidsetsize, grouplist));
cb3bc233
AZ		 8170 if (gidsetsize == 0)
8171 break;
99c475ab 8172 if (!is_error(ret)) {
579a97f7
FB		 8173 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0);
8174 if (!target_grouplist) {
8175 ret = -TARGET_EFAULT;
8176 goto fail;
8177 }
a2155fcc 8178 for(i = 0;i < ret; i++)
53a5960a
PB		 8179 target_grouplist[i] = tswap32(grouplist[i]);
8180 unlock_user(target_grouplist, arg2, gidsetsize * 4);
99c475ab
FB		 8181 }
8182 }
8183 break;
a315a145
FB		 8184#endif
8185#ifdef TARGET_NR_setgroups32
31e31b8a 8186 case TARGET_NR_setgroups32:
99c475ab
FB		 8187 {
8188 int gidsetsize = arg1;
53a5960a 8189 uint32_t *target_grouplist;
99c475ab
FB		 8190 gid_t *grouplist;
8191 int i;
3b46e624 8192
99c475ab 8193 grouplist = alloca(gidsetsize * sizeof(gid_t));
579a97f7
FB		 8194 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1);
8195 if (!target_grouplist) {
8196 ret = -TARGET_EFAULT;
8197 goto fail;
8198 }
99c475ab 8199 for(i = 0;i < gidsetsize; i++)
53a5960a
PB		 8200 grouplist[i] = tswap32(target_grouplist[i]);
8201 unlock_user(target_grouplist, arg2, 0);
99c475ab
FB		 8202 ret = get_errno(setgroups(gidsetsize, grouplist));
8203 }
8204 break;
a315a145
FB		 8205#endif
8206#ifdef TARGET_NR_fchown32
31e31b8a 8207 case TARGET_NR_fchown32:
b03c60f3
FB		 8208 ret = get_errno(fchown(arg1, arg2, arg3));
8209 break;
a315a145
FB		 8210#endif
8211#ifdef TARGET_NR_setresuid32
31e31b8a 8212 case TARGET_NR_setresuid32:
b03c60f3
FB		 8213 ret = get_errno(setresuid(arg1, arg2, arg3));
8214 break;
a315a145
FB		 8215#endif
8216#ifdef TARGET_NR_getresuid32
31e31b8a 8217 case TARGET_NR_getresuid32:
b03c60f3 8218 {
53a5960a 8219 uid_t ruid, euid, suid;
b03c60f3
FB		 8220 ret = get_errno(getresuid(&ruid, &euid, &suid));
8221 if (!is_error(ret)) {
2f619698
FB		 8222 if (put_user_u32(ruid, arg1)
8223 || put_user_u32(euid, arg2)
8224 || put_user_u32(suid, arg3))
8225 goto efault;
b03c60f3
FB		 8226 }
8227 }
8228 break;
a315a145
FB		 8229#endif
8230#ifdef TARGET_NR_setresgid32
31e31b8a 8231 case TARGET_NR_setresgid32:
b03c60f3
FB		 8232 ret = get_errno(setresgid(arg1, arg2, arg3));
8233 break;
a315a145
FB		 8234#endif
8235#ifdef TARGET_NR_getresgid32
31e31b8a 8236 case TARGET_NR_getresgid32:
b03c60f3 8237 {
53a5960a 8238 gid_t rgid, egid, sgid;
b03c60f3
FB		 8239 ret = get_errno(getresgid(&rgid, &egid, &sgid));
8240 if (!is_error(ret)) {
2f619698
FB		 8241 if (put_user_u32(rgid, arg1)
8242 || put_user_u32(egid, arg2)
8243 || put_user_u32(sgid, arg3))
8244 goto efault;
b03c60f3
FB		 8245 }
8246 }
8247 break;
a315a145
FB		 8248#endif
8249#ifdef TARGET_NR_chown32
31e31b8a 8250 case TARGET_NR_chown32:
579a97f7
FB		 8251 if (!(p = lock_user_string(arg1)))
8252 goto efault;
53a5960a
PB		 8253 ret = get_errno(chown(p, arg2, arg3));
8254 unlock_user(p, arg1, 0);
b03c60f3 8255 break;
a315a145
FB		 8256#endif
8257#ifdef TARGET_NR_setuid32
31e31b8a 8258 case TARGET_NR_setuid32:
b03c60f3
FB		 8259 ret = get_errno(setuid(arg1));
8260 break;
a315a145
FB		 8261#endif
8262#ifdef TARGET_NR_setgid32
31e31b8a 8263 case TARGET_NR_setgid32:
b03c60f3
FB		 8264 ret = get_errno(setgid(arg1));
8265 break;
a315a145
FB		 8266#endif
8267#ifdef TARGET_NR_setfsuid32
31e31b8a 8268 case TARGET_NR_setfsuid32:
b03c60f3
FB		 8269 ret = get_errno(setfsuid(arg1));
8270 break;
a315a145
FB		 8271#endif
8272#ifdef TARGET_NR_setfsgid32
31e31b8a 8273 case TARGET_NR_setfsgid32:
b03c60f3
FB		 8274 ret = get_errno(setfsgid(arg1));
8275 break;
a315a145 8276#endif
67867308 8277
31e31b8a 8278 case TARGET_NR_pivot_root:
b03c60f3 8279 goto unimplemented;
ffa65c3b 8280#ifdef TARGET_NR_mincore
31e31b8a 8281 case TARGET_NR_mincore:
04bb9ace
AJ		 8282 {
8283 void *a;
8284 ret = -TARGET_EFAULT;
8285 if (!(a = lock_user(VERIFY_READ, arg1,arg2, 0)))
8286 goto efault;
8287 if (!(p = lock_user_string(arg3)))
8288 goto mincore_fail;
8289 ret = get_errno(mincore(a, arg2, p));
8290 unlock_user(p, arg3, ret);
8291 mincore_fail:
8292 unlock_user(a, arg1, 0);
8293 }
8294 break;
ffa65c3b 8295#endif
408321b6
AJ		 8296#ifdef TARGET_NR_arm_fadvise64_64
8297 case TARGET_NR_arm_fadvise64_64:
8298 {
8299 /*
8300 * arm_fadvise64_64 looks like fadvise64_64 but
8301 * with different argument order
8302 */
8303 abi_long temp;
8304 temp = arg3;
8305 arg3 = arg4;
8306 arg4 = temp;
8307 }
8308#endif
e72d2cc7 8309#if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_arm_fadvise64_64) || defined(TARGET_NR_fadvise64)
408321b6
AJ		 8310#ifdef TARGET_NR_fadvise64_64
8311 case TARGET_NR_fadvise64_64:
8312#endif
e72d2cc7
UH		 8313#ifdef TARGET_NR_fadvise64
8314 case TARGET_NR_fadvise64:
8315#endif
8316#ifdef TARGET_S390X
8317 switch (arg4) {
8318 case 4: arg4 = POSIX_FADV_NOREUSE + 1; break; /* make sure it's an invalid value */
8319 case 5: arg4 = POSIX_FADV_NOREUSE + 2; break; /* ditto */
8320 case 6: arg4 = POSIX_FADV_DONTNEED; break;
8321 case 7: arg4 = POSIX_FADV_NOREUSE; break;
8322 default: break;
8323 }
8324#endif
8325 ret = -posix_fadvise(arg1, arg2, arg3, arg4);
408321b6
AJ		 8326 break;
8327#endif
ffa65c3b 8328#ifdef TARGET_NR_madvise
31e31b8a 8329 case TARGET_NR_madvise:
24836689 8330 /* A straight passthrough may not be safe because qemu sometimes
d2d6b857 8331 turns private file-backed mappings into anonymous mappings.
24836689
PB		 8332 This will break MADV_DONTNEED.
8333 This is a hint, so ignoring and returning success is ok. */
8334 ret = get_errno(0);
8335 break;
ffa65c3b 8336#endif
992f48a0 8337#if TARGET_ABI_BITS == 32
31e31b8a 8338 case TARGET_NR_fcntl64:
77e4672d 8339 {
b1e341eb 8340 int cmd;
77e4672d 8341 struct flock64 fl;
53a5960a 8342 struct target_flock64 *target_fl;
ce4defa0 8343#ifdef TARGET_ARM
53a5960a 8344 struct target_eabi_flock64 *target_efl;
ce4defa0 8345#endif
77e4672d 8346
5f106811 8347 cmd = target_to_host_fcntl_cmd(arg2);
31b63193
PM		 8348 if (cmd == -TARGET_EINVAL) {
8349 ret = cmd;
8350 break;
8351 }
b1e341eb 8352
60cd49d5 8353 switch(arg2) {
b1e341eb 8354 case TARGET_F_GETLK64:
5813427b
TS		 8355#ifdef TARGET_ARM
8356 if (((CPUARMState *)cpu_env)->eabi) {
9ee1fa2c
FB		 8357 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1))
8358 goto efault;
5813427b
TS		 8359 fl.l_type = tswap16(target_efl->l_type);
8360 fl.l_whence = tswap16(target_efl->l_whence);
8361 fl.l_start = tswap64(target_efl->l_start);
8362 fl.l_len = tswap64(target_efl->l_len);
7e22e546 8363 fl.l_pid = tswap32(target_efl->l_pid);
5813427b
TS		 8364 unlock_user_struct(target_efl, arg3, 0);
8365 } else
8366#endif
8367 {
9ee1fa2c
FB		 8368 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1))
8369 goto efault;
5813427b
TS		 8370 fl.l_type = tswap16(target_fl->l_type);
8371 fl.l_whence = tswap16(target_fl->l_whence);
8372 fl.l_start = tswap64(target_fl->l_start);
8373 fl.l_len = tswap64(target_fl->l_len);
7e22e546 8374 fl.l_pid = tswap32(target_fl->l_pid);
5813427b
TS		 8375 unlock_user_struct(target_fl, arg3, 0);
8376 }
b1e341eb 8377 ret = get_errno(fcntl(arg1, cmd, &fl));
77e4672d 8378 if (ret == 0) {
ce4defa0
PB		 8379#ifdef TARGET_ARM
8380 if (((CPUARMState *)cpu_env)->eabi) {
9ee1fa2c
FB		 8381 if (!lock_user_struct(VERIFY_WRITE, target_efl, arg3, 0))
8382 goto efault;
ce4defa0
PB		 8383 target_efl->l_type = tswap16(fl.l_type);
8384 target_efl->l_whence = tswap16(fl.l_whence);
8385 target_efl->l_start = tswap64(fl.l_start);
8386 target_efl->l_len = tswap64(fl.l_len);
7e22e546 8387 target_efl->l_pid = tswap32(fl.l_pid);
53a5960a 8388 unlock_user_struct(target_efl, arg3, 1);
ce4defa0
PB		 8389 } else
8390#endif
8391 {
9ee1fa2c
FB		 8392 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg3, 0))
8393 goto efault;
ce4defa0
PB		 8394 target_fl->l_type = tswap16(fl.l_type);
8395 target_fl->l_whence = tswap16(fl.l_whence);
8396 target_fl->l_start = tswap64(fl.l_start);
8397 target_fl->l_len = tswap64(fl.l_len);
7e22e546 8398 target_fl->l_pid = tswap32(fl.l_pid);
53a5960a 8399 unlock_user_struct(target_fl, arg3, 1);
ce4defa0 8400 }
77e4672d
FB		 8401 }
8402 break;
8403
b1e341eb
TS		 8404 case TARGET_F_SETLK64:
8405 case TARGET_F_SETLKW64:
ce4defa0
PB		 8406#ifdef TARGET_ARM
8407 if (((CPUARMState *)cpu_env)->eabi) {
9ee1fa2c
FB		 8408 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1))
8409 goto efault;
ce4defa0
PB		 8410 fl.l_type = tswap16(target_efl->l_type);
8411 fl.l_whence = tswap16(target_efl->l_whence);
8412 fl.l_start = tswap64(target_efl->l_start);
8413 fl.l_len = tswap64(target_efl->l_len);
7e22e546 8414 fl.l_pid = tswap32(target_efl->l_pid);
53a5960a 8415 unlock_user_struct(target_efl, arg3, 0);
ce4defa0
PB		 8416 } else
8417#endif
8418 {
9ee1fa2c
FB		 8419 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1))
8420 goto efault;
ce4defa0
PB		 8421 fl.l_type = tswap16(target_fl->l_type);
8422 fl.l_whence = tswap16(target_fl->l_whence);
8423 fl.l_start = tswap64(target_fl->l_start);
8424 fl.l_len = tswap64(target_fl->l_len);
7e22e546 8425 fl.l_pid = tswap32(target_fl->l_pid);
53a5960a 8426 unlock_user_struct(target_fl, arg3, 0);
ce4defa0 8427 }
b1e341eb 8428 ret = get_errno(fcntl(arg1, cmd, &fl));
77e4672d 8429 break;
60cd49d5 8430 default:
5f106811 8431 ret = do_fcntl(arg1, arg2, arg3);
60cd49d5
FB		 8432 break;
8433 }
77e4672d
FB		 8434 break;
8435 }
60cd49d5 8436#endif
7d600c80
TS		 8437#ifdef TARGET_NR_cacheflush
8438 case TARGET_NR_cacheflush:
8439 /* self-modifying code is handled automatically, so nothing needed */
8440 ret = 0;
8441 break;
8442#endif
ebc05488 8443#ifdef TARGET_NR_security
31e31b8a
FB		 8444 case TARGET_NR_security:
8445 goto unimplemented;
c573ff67
FB		 8446#endif
8447#ifdef TARGET_NR_getpagesize
8448 case TARGET_NR_getpagesize:
8449 ret = TARGET_PAGE_SIZE;
8450 break;
ebc05488 8451#endif
31e31b8a
FB		 8452 case TARGET_NR_gettid:
8453 ret = get_errno(gettid());
8454 break;
e5febef5 8455#ifdef TARGET_NR_readahead
31e31b8a 8456 case TARGET_NR_readahead:
2054ac9b 8457#if TARGET_ABI_BITS == 32
48e515d4 8458 if (regpairs_aligned(cpu_env)) {
2054ac9b
AJ		 8459 arg2 = arg3;
8460 arg3 = arg4;
8461 arg4 = arg5;
8462 }
2054ac9b
AJ		 8463 ret = get_errno(readahead(arg1, ((off64_t)arg3 << 32) | arg2, arg4));
8464#else
8465 ret = get_errno(readahead(arg1, arg2, arg3));
8466#endif
8467 break;
e5febef5 8468#endif
a790ae38 8469#ifdef CONFIG_ATTR
ebc05488 8470#ifdef TARGET_NR_setxattr
31e31b8a
FB		 8471 case TARGET_NR_listxattr:
8472 case TARGET_NR_llistxattr:
fb5590f7
PM		 8473 {
8474 void *p, *b = 0;
8475 if (arg2) {
8476 b = lock_user(VERIFY_WRITE, arg2, arg3, 0);
8477 if (!b) {
8478 ret = -TARGET_EFAULT;
8479 break;
8480 }
8481 }
8482 p = lock_user_string(arg1);
8483 if (p) {
8484 if (num == TARGET_NR_listxattr) {
8485 ret = get_errno(listxattr(p, b, arg3));
8486 } else {
8487 ret = get_errno(llistxattr(p, b, arg3));
8488 }
8489 } else {
8490 ret = -TARGET_EFAULT;
8491 }
8492 unlock_user(p, arg1, 0);
8493 unlock_user(b, arg2, arg3);
8494 break;
8495 }
31e31b8a 8496 case TARGET_NR_flistxattr:
fb5590f7
PM		 8497 {
8498 void *b = 0;
8499 if (arg2) {
8500 b = lock_user(VERIFY_WRITE, arg2, arg3, 0);
8501 if (!b) {
8502 ret = -TARGET_EFAULT;
8503 break;
8504 }
8505 }
8506 ret = get_errno(flistxattr(arg1, b, arg3));
8507 unlock_user(b, arg2, arg3);
6f932f91 8508 break;
fb5590f7 8509 }
a790ae38 8510 case TARGET_NR_setxattr:
30297b55 8511 case TARGET_NR_lsetxattr:
a790ae38 8512 {
e3c33ec6
PM		 8513 void *p, *n, *v = 0;
8514 if (arg3) {
8515 v = lock_user(VERIFY_READ, arg3, arg4, 1);
8516 if (!v) {
8517 ret = -TARGET_EFAULT;
8518 break;
8519 }
8520 }
a790ae38
ACH		 8521 p = lock_user_string(arg1);
8522 n = lock_user_string(arg2);
e3c33ec6 8523 if (p && n) {
30297b55
PM		 8524 if (num == TARGET_NR_setxattr) {
8525 ret = get_errno(setxattr(p, n, v, arg4, arg5));
8526 } else {
8527 ret = get_errno(lsetxattr(p, n, v, arg4, arg5));
8528 }
a790ae38
ACH		 8529 } else {
8530 ret = -TARGET_EFAULT;
8531 }
8532 unlock_user(p, arg1, 0);
8533 unlock_user(n, arg2, 0);
8534 unlock_user(v, arg3, 0);
8535 }
8536 break;
30297b55
PM		 8537 case TARGET_NR_fsetxattr:
8538 {
8539 void *n, *v = 0;
8540 if (arg3) {
8541 v = lock_user(VERIFY_READ, arg3, arg4, 1);
8542 if (!v) {
8543 ret = -TARGET_EFAULT;
8544 break;
8545 }
8546 }
8547 n = lock_user_string(arg2);
8548 if (n) {
8549 ret = get_errno(fsetxattr(arg1, n, v, arg4, arg5));
8550 } else {
8551 ret = -TARGET_EFAULT;
8552 }
8553 unlock_user(n, arg2, 0);
8554 unlock_user(v, arg3, 0);
8555 }
8556 break;
a790ae38 8557 case TARGET_NR_getxattr:
30297b55 8558 case TARGET_NR_lgetxattr:
a790ae38 8559 {
e3c33ec6
PM		 8560 void *p, *n, *v = 0;
8561 if (arg3) {
8562 v = lock_user(VERIFY_WRITE, arg3, arg4, 0);
8563 if (!v) {
8564 ret = -TARGET_EFAULT;
8565 break;
8566 }
8567 }
a790ae38
ACH		 8568 p = lock_user_string(arg1);
8569 n = lock_user_string(arg2);
e3c33ec6 8570 if (p && n) {
30297b55
PM		 8571 if (num == TARGET_NR_getxattr) {
8572 ret = get_errno(getxattr(p, n, v, arg4));
8573 } else {
8574 ret = get_errno(lgetxattr(p, n, v, arg4));
8575 }
a790ae38
ACH		 8576 } else {
8577 ret = -TARGET_EFAULT;
8578 }
8579 unlock_user(p, arg1, 0);
8580 unlock_user(n, arg2, 0);
8581 unlock_user(v, arg3, arg4);
8582 }
8583 break;
30297b55
PM		 8584 case TARGET_NR_fgetxattr:
8585 {
8586 void *n, *v = 0;
8587 if (arg3) {
8588 v = lock_user(VERIFY_WRITE, arg3, arg4, 0);
8589 if (!v) {
8590 ret = -TARGET_EFAULT;
8591 break;
8592 }
8593 }
8594 n = lock_user_string(arg2);
8595 if (n) {
8596 ret = get_errno(fgetxattr(arg1, n, v, arg4));
8597 } else {
8598 ret = -TARGET_EFAULT;
8599 }
8600 unlock_user(n, arg2, 0);
8601 unlock_user(v, arg3, arg4);
8602 }
8603 break;
a790ae38 8604 case TARGET_NR_removexattr:
30297b55 8605 case TARGET_NR_lremovexattr:
a790ae38
ACH		 8606 {
8607 void *p, *n;
8608 p = lock_user_string(arg1);
8609 n = lock_user_string(arg2);
8610 if (p && n) {
30297b55
PM		 8611 if (num == TARGET_NR_removexattr) {
8612 ret = get_errno(removexattr(p, n));
8613 } else {
8614 ret = get_errno(lremovexattr(p, n));
8615 }
a790ae38
ACH		 8616 } else {
8617 ret = -TARGET_EFAULT;
8618 }
8619 unlock_user(p, arg1, 0);
8620 unlock_user(n, arg2, 0);
8621 }
8622 break;
30297b55
PM		 8623 case TARGET_NR_fremovexattr:
8624 {
8625 void *n;
8626 n = lock_user_string(arg2);
8627 if (n) {
8628 ret = get_errno(fremovexattr(arg1, n));
8629 } else {
8630 ret = -TARGET_EFAULT;
8631 }
8632 unlock_user(n, arg2, 0);
8633 }
8634 break;
ebc05488 8635#endif
a790ae38 8636#endif /* CONFIG_ATTR */
ebc05488 8637#ifdef TARGET_NR_set_thread_area
5cd4393b 8638 case TARGET_NR_set_thread_area:
8d18e893 8639#if defined(TARGET_MIPS)
6f5b89a0
TS		 8640 ((CPUMIPSState *) cpu_env)->tls_value = arg1;
8641 ret = 0;
8642 break;
ef96779b
EI		 8643#elif defined(TARGET_CRIS)
8644 if (arg1 & 0xff)
8645 ret = -TARGET_EINVAL;
8646 else {
8647 ((CPUCRISState *) cpu_env)->pregs[PR_PID] = arg1;
8648 ret = 0;
8649 }
8650 break;
8d18e893
FB		 8651#elif defined(TARGET_I386) && defined(TARGET_ABI32)
8652 ret = do_set_thread_area(cpu_env, arg1);
8653 break;
1ccd9374
PM		 8654#elif defined(TARGET_M68K)
8655 {
0429a971 8656 TaskState *ts = cpu->opaque;
1ccd9374 8657 ts->tp_value = arg1;
95c1eb19 8658 ret = 0;
1ccd9374
PM		 8659 break;
8660 }
6f5b89a0
TS		 8661#else
8662 goto unimplemented_nowarn;
8663#endif
8664#endif
8665#ifdef TARGET_NR_get_thread_area
5cd4393b 8666 case TARGET_NR_get_thread_area:
8d18e893
FB		 8667#if defined(TARGET_I386) && defined(TARGET_ABI32)
8668 ret = do_get_thread_area(cpu_env, arg1);
d312bbe1 8669 break;
1ccd9374
PM		 8670#elif defined(TARGET_M68K)
8671 {
0429a971 8672 TaskState *ts = cpu->opaque;
1ccd9374
PM		 8673 ret = ts->tp_value;
8674 break;
8675 }
8d18e893 8676#else
5cd4393b 8677 goto unimplemented_nowarn;
48dc41eb 8678#endif
8d18e893 8679#endif
48dc41eb
FB		 8680#ifdef TARGET_NR_getdomainname
8681 case TARGET_NR_getdomainname:
8682 goto unimplemented_nowarn;
ebc05488 8683#endif
6f5b89a0 8684
b5906f95
TS		 8685#ifdef TARGET_NR_clock_gettime
8686 case TARGET_NR_clock_gettime:
8687 {
8688 struct timespec ts;
8689 ret = get_errno(clock_gettime(arg1, &ts));
8690 if (!is_error(ret)) {
8691 host_to_target_timespec(arg2, &ts);
8692 }
8693 break;
8694 }
8695#endif
8696#ifdef TARGET_NR_clock_getres
8697 case TARGET_NR_clock_getres:
8698 {
8699 struct timespec ts;
8700 ret = get_errno(clock_getres(arg1, &ts));
8701 if (!is_error(ret)) {
8702 host_to_target_timespec(arg2, &ts);
8703 }
8704 break;
8705 }
8706#endif
63d7651b
PB		 8707#ifdef TARGET_NR_clock_nanosleep
8708 case TARGET_NR_clock_nanosleep:
8709 {
8710 struct timespec ts;
8711 target_to_host_timespec(&ts, arg3);
8712 ret = get_errno(clock_nanosleep(arg1, arg2, &ts, arg4 ? &ts : NULL));
8713 if (arg4)
8714 host_to_target_timespec(arg4, &ts);
8715 break;
8716 }
8717#endif
b5906f95 8718
6f5b89a0
TS		 8719#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
8720 case TARGET_NR_set_tid_address:
579a97f7
FB		 8721 ret = get_errno(set_tid_address((int *)g2h(arg1)));
8722 break;
6f5b89a0
TS		 8723#endif
8724
3ae43202 8725#if defined(TARGET_NR_tkill) && defined(__NR_tkill)
4cae1d16 8726 case TARGET_NR_tkill:
4cb05961 8727 ret = get_errno(sys_tkill((int)arg1, target_to_host_signal(arg2)));
4cae1d16
TS		 8728 break;
8729#endif
8730
3ae43202 8731#if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
71455574 8732 case TARGET_NR_tgkill:
4cb05961
PB		 8733 ret = get_errno(sys_tgkill((int)arg1, (int)arg2,
8734 target_to_host_signal(arg3)));
71455574
TS		 8735 break;
8736#endif
8737
4f2b1fe8
TS		 8738#ifdef TARGET_NR_set_robust_list
8739 case TARGET_NR_set_robust_list:
e9a970a8
PM		 8740 case TARGET_NR_get_robust_list:
8741 /* The ABI for supporting robust futexes has userspace pass
8742 * the kernel a pointer to a linked list which is updated by
8743 * userspace after the syscall; the list is walked by the kernel
8744 * when the thread exits. Since the linked list in QEMU guest
8745 * memory isn't a valid linked list for the host and we have
8746 * no way to reliably intercept the thread-death event, we can't
8747 * support these. Silently return ENOSYS so that guest userspace
8748 * falls back to a non-robust futex implementation (which should
8749 * be OK except in the corner case of the guest crashing while
8750 * holding a mutex that is shared with another process via
8751 * shared memory).
8752 */
8753 goto unimplemented_nowarn;
4f2b1fe8
TS		 8754#endif
8755
1acae9f2 8756#if defined(TARGET_NR_utimensat)
9007f0ef
TS		 8757 case TARGET_NR_utimensat:
8758 {
ebc996f3
RV		 8759 struct timespec *tsp, ts[2];
8760 if (!arg3) {
8761 tsp = NULL;
8762 } else {
8763 target_to_host_timespec(ts, arg3);
8764 target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec));
8765 tsp = ts;
8766 }
9007f0ef 8767 if (!arg2)
ebc996f3 8768 ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4));
9007f0ef 8769 else {
579a97f7 8770 if (!(p = lock_user_string(arg2))) {
0da46a6e 8771 ret = -TARGET_EFAULT;
579a97f7
FB		 8772 goto fail;
8773 }
ebc996f3 8774 ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4));
579a97f7 8775 unlock_user(p, arg2, 0);
9007f0ef
TS		 8776 }
8777 }
8778 break;
8779#endif
bd0c5661
PB		 8780 case TARGET_NR_futex:
8781 ret = do_futex(arg1, arg2, arg3, arg4, arg5, arg6);
8782 break;
dbfe4c36 8783#if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
39b59763
AJ		 8784 case TARGET_NR_inotify_init:
8785 ret = get_errno(sys_inotify_init());
8786 break;
8787#endif
a1606b0b 8788#ifdef CONFIG_INOTIFY1
c05c7a73
RV		 8789#if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
8790 case TARGET_NR_inotify_init1:
8791 ret = get_errno(sys_inotify_init1(arg1));
8792 break;
8793#endif
a1606b0b 8794#endif
dbfe4c36 8795#if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
39b59763
AJ		 8796 case TARGET_NR_inotify_add_watch:
8797 p = lock_user_string(arg2);
8798 ret = get_errno(sys_inotify_add_watch(arg1, path(p), arg3));
8799 unlock_user(p, arg2, 0);
8800 break;
8801#endif
dbfe4c36 8802#if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
39b59763
AJ		 8803 case TARGET_NR_inotify_rm_watch:
8804 ret = get_errno(sys_inotify_rm_watch(arg1, arg2));
8805 break;
8806#endif
9007f0ef 8807
8ec9cf89 8808#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
24e1003a
AJ		 8809 case TARGET_NR_mq_open:
8810 {
8811 struct mq_attr posix_mq_attr;
8812
8813 p = lock_user_string(arg1 - 1);
8814 if (arg4 != 0)
8815 copy_from_user_mq_attr (&posix_mq_attr, arg4);
8816 ret = get_errno(mq_open(p, arg2, arg3, &posix_mq_attr));
8817 unlock_user (p, arg1, 0);
8818 }
8819 break;
8820
8821 case TARGET_NR_mq_unlink:
8822 p = lock_user_string(arg1 - 1);
8823 ret = get_errno(mq_unlink(p));
8824 unlock_user (p, arg1, 0);
8825 break;
8826
8827 case TARGET_NR_mq_timedsend:
8828 {
8829 struct timespec ts;
8830
8831 p = lock_user (VERIFY_READ, arg2, arg3, 1);
8832 if (arg5 != 0) {
8833 target_to_host_timespec(&ts, arg5);
8834 ret = get_errno(mq_timedsend(arg1, p, arg3, arg4, &ts));
8835 host_to_target_timespec(arg5, &ts);
8836 }
8837 else
8838 ret = get_errno(mq_send(arg1, p, arg3, arg4));
8839 unlock_user (p, arg2, arg3);
8840 }
8841 break;
8842
8843 case TARGET_NR_mq_timedreceive:
8844 {
8845 struct timespec ts;
8846 unsigned int prio;
8847
8848 p = lock_user (VERIFY_READ, arg2, arg3, 1);
8849 if (arg5 != 0) {
8850 target_to_host_timespec(&ts, arg5);
8851 ret = get_errno(mq_timedreceive(arg1, p, arg3, &prio, &ts));
8852 host_to_target_timespec(arg5, &ts);
8853 }
8854 else
8855 ret = get_errno(mq_receive(arg1, p, arg3, &prio));
8856 unlock_user (p, arg2, arg3);
8857 if (arg4 != 0)
8858 put_user_u32(prio, arg4);
8859 }
8860 break;
8861
8862 /* Not implemented for now... */
8863/* case TARGET_NR_mq_notify: */
8864/* break; */
8865
8866 case TARGET_NR_mq_getsetattr:
8867 {
8868 struct mq_attr posix_mq_attr_in, posix_mq_attr_out;
8869 ret = 0;
8870 if (arg3 != 0) {
8871 ret = mq_getattr(arg1, &posix_mq_attr_out);
8872 copy_to_user_mq_attr(arg3, &posix_mq_attr_out);
8873 }
8874 if (arg2 != 0) {
8875 copy_from_user_mq_attr(&posix_mq_attr_in, arg2);
8876 ret |= mq_setattr(arg1, &posix_mq_attr_in, &posix_mq_attr_out);
8877 }
8878
8879 }
8880 break;
8881#endif
8882
3ce34dfb
VS		 8883#ifdef CONFIG_SPLICE
8884#ifdef TARGET_NR_tee
8885 case TARGET_NR_tee:
8886 {
8887 ret = get_errno(tee(arg1,arg2,arg3,arg4));
8888 }
8889 break;
8890#endif
8891#ifdef TARGET_NR_splice
8892 case TARGET_NR_splice:
8893 {
8894 loff_t loff_in, loff_out;
8895 loff_t *ploff_in = NULL, *ploff_out = NULL;
8896 if(arg2) {
8897 get_user_u64(loff_in, arg2);
8898 ploff_in = &loff_in;
8899 }
8900 if(arg4) {
8901 get_user_u64(loff_out, arg2);
8902 ploff_out = &loff_out;
8903 }
8904 ret = get_errno(splice(arg1, ploff_in, arg3, ploff_out, arg5, arg6));
8905 }
8906 break;
8907#endif
8908#ifdef TARGET_NR_vmsplice
8909 case TARGET_NR_vmsplice:
8910 {
f287b2c2
RH		 8911 struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
8912 if (vec != NULL) {
8913 ret = get_errno(vmsplice(arg1, vec, arg3, arg4));
8914 unlock_iovec(vec, arg2, arg3, 0);
8915 } else {
8916 ret = -host_to_target_errno(errno);
8917 }
3ce34dfb
VS		 8918 }
8919 break;
8920#endif
8921#endif /* CONFIG_SPLICE */
c2882b96
RV		 8922#ifdef CONFIG_EVENTFD
8923#if defined(TARGET_NR_eventfd)
8924 case TARGET_NR_eventfd:
8925 ret = get_errno(eventfd(arg1, 0));
8926 break;
8927#endif
8928#if defined(TARGET_NR_eventfd2)
8929 case TARGET_NR_eventfd2:
5947c697
PJ		 8930 {
8931 int host_flags = arg2 & (~(TARGET_O_NONBLOCK | TARGET_O_CLOEXEC));
8932 if (arg2 & TARGET_O_NONBLOCK) {
8933 host_flags |= O_NONBLOCK;
8934 }
8935 if (arg2 & TARGET_O_CLOEXEC) {
8936 host_flags |= O_CLOEXEC;
8937 }
8938 ret = get_errno(eventfd(arg1, host_flags));
c2882b96 8939 break;
5947c697 8940 }
c2882b96
RV		 8941#endif
8942#endif /* CONFIG_EVENTFD */
d0927938
UH		 8943#if defined(CONFIG_FALLOCATE) && defined(TARGET_NR_fallocate)
8944 case TARGET_NR_fallocate:
20249ae1
AG		 8945#if TARGET_ABI_BITS == 32
8946 ret = get_errno(fallocate(arg1, arg2, target_offset64(arg3, arg4),
8947 target_offset64(arg5, arg6)));
8948#else
d0927938 8949 ret = get_errno(fallocate(arg1, arg2, arg3, arg4));
20249ae1 8950#endif
d0927938 8951 break;
c727f47d
PM		 8952#endif
8953#if defined(CONFIG_SYNC_FILE_RANGE)
8954#if defined(TARGET_NR_sync_file_range)
8955 case TARGET_NR_sync_file_range:
8956#if TARGET_ABI_BITS == 32
bfcedc57
RV		 8957#if defined(TARGET_MIPS)
8958 ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
8959 target_offset64(arg5, arg6), arg7));
8960#else
c727f47d
PM		 8961 ret = get_errno(sync_file_range(arg1, target_offset64(arg2, arg3),
8962 target_offset64(arg4, arg5), arg6));
bfcedc57 8963#endif /* !TARGET_MIPS */
c727f47d
PM		 8964#else
8965 ret = get_errno(sync_file_range(arg1, arg2, arg3, arg4));
8966#endif
8967 break;
8968#endif
8969#if defined(TARGET_NR_sync_file_range2)
8970 case TARGET_NR_sync_file_range2:
8971 /* This is like sync_file_range but the arguments are reordered */
8972#if TARGET_ABI_BITS == 32
8973 ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
8974 target_offset64(arg5, arg6), arg2));
8975#else
8976 ret = get_errno(sync_file_range(arg1, arg3, arg4, arg2));
8977#endif
8978 break;
8979#endif
3b6edd16
PM		 8980#endif
8981#if defined(CONFIG_EPOLL)
8982#if defined(TARGET_NR_epoll_create)
8983 case TARGET_NR_epoll_create:
8984 ret = get_errno(epoll_create(arg1));
8985 break;
8986#endif
8987#if defined(TARGET_NR_epoll_create1) && defined(CONFIG_EPOLL_CREATE1)
8988 case TARGET_NR_epoll_create1:
8989 ret = get_errno(epoll_create1(arg1));
8990 break;
8991#endif
8992#if defined(TARGET_NR_epoll_ctl)
8993 case TARGET_NR_epoll_ctl:
8994 {
8995 struct epoll_event ep;
8996 struct epoll_event *epp = 0;
8997 if (arg4) {
8998 struct target_epoll_event *target_ep;
8999 if (!lock_user_struct(VERIFY_READ, target_ep, arg4, 1)) {
9000 goto efault;
9001 }
9002 ep.events = tswap32(target_ep->events);
9003 /* The epoll_data_t union is just opaque data to the kernel,
9004 * so we transfer all 64 bits across and need not worry what
9005 * actual data type it is.
9006 */
9007 ep.data.u64 = tswap64(target_ep->data.u64);
9008 unlock_user_struct(target_ep, arg4, 0);
9009 epp = &ep;
9010 }
9011 ret = get_errno(epoll_ctl(arg1, arg2, arg3, epp));
9012 break;
9013 }
9014#endif
9015
9016#if defined(TARGET_NR_epoll_pwait) && defined(CONFIG_EPOLL_PWAIT)
9017#define IMPLEMENT_EPOLL_PWAIT
9018#endif
9019#if defined(TARGET_NR_epoll_wait) || defined(IMPLEMENT_EPOLL_PWAIT)
9020#if defined(TARGET_NR_epoll_wait)
9021 case TARGET_NR_epoll_wait:
9022#endif
9023#if defined(IMPLEMENT_EPOLL_PWAIT)
9024 case TARGET_NR_epoll_pwait:
9025#endif
9026 {
9027 struct target_epoll_event *target_ep;
9028 struct epoll_event *ep;
9029 int epfd = arg1;
9030 int maxevents = arg3;
9031 int timeout = arg4;
9032
9033 target_ep = lock_user(VERIFY_WRITE, arg2,
9034 maxevents * sizeof(struct target_epoll_event), 1);
9035 if (!target_ep) {
9036 goto efault;
9037 }
9038
9039 ep = alloca(maxevents * sizeof(struct epoll_event));
9040
9041 switch (num) {
9042#if defined(IMPLEMENT_EPOLL_PWAIT)
9043 case TARGET_NR_epoll_pwait:
9044 {
9045 target_sigset_t *target_set;
9046 sigset_t _set, *set = &_set;
9047
9048 if (arg5) {
9049 target_set = lock_user(VERIFY_READ, arg5,
9050 sizeof(target_sigset_t), 1);
9051 if (!target_set) {
9052 unlock_user(target_ep, arg2, 0);
9053 goto efault;
9054 }
9055 target_to_host_sigset(set, target_set);
9056 unlock_user(target_set, arg5, 0);
9057 } else {
9058 set = NULL;
9059 }
9060
9061 ret = get_errno(epoll_pwait(epfd, ep, maxevents, timeout, set));
9062 break;
9063 }
9064#endif
9065#if defined(TARGET_NR_epoll_wait)
9066 case TARGET_NR_epoll_wait:
9067 ret = get_errno(epoll_wait(epfd, ep, maxevents, timeout));
9068 break;
9069#endif
9070 default:
9071 ret = -TARGET_ENOSYS;
9072 }
9073 if (!is_error(ret)) {
9074 int i;
9075 for (i = 0; i < ret; i++) {
9076 target_ep[i].events = tswap32(ep[i].events);
9077 target_ep[i].data.u64 = tswap64(ep[i].data.u64);
9078 }
9079 }
9080 unlock_user(target_ep, arg2, ret * sizeof(struct target_epoll_event));
9081 break;
9082 }
9083#endif
163a05a8
PM		 9084#endif
9085#ifdef TARGET_NR_prlimit64
9086 case TARGET_NR_prlimit64:
9087 {
9088 /* args: pid, resource number, ptr to new rlimit, ptr to old rlimit */
9089 struct target_rlimit64 *target_rnew, *target_rold;
9090 struct host_rlimit64 rnew, rold, *rnewp = 0;
9091 if (arg3) {
9092 if (!lock_user_struct(VERIFY_READ, target_rnew, arg3, 1)) {
9093 goto efault;
9094 }
9095 rnew.rlim_cur = tswap64(target_rnew->rlim_cur);
9096 rnew.rlim_max = tswap64(target_rnew->rlim_max);
9097 unlock_user_struct(target_rnew, arg3, 0);
9098 rnewp = &rnew;
9099 }
9100
9101 ret = get_errno(sys_prlimit64(arg1, arg2, rnewp, arg4 ? &rold : 0));
9102 if (!is_error(ret) && arg4) {
9103 if (!lock_user_struct(VERIFY_WRITE, target_rold, arg4, 1)) {
9104 goto efault;
9105 }
9106 target_rold->rlim_cur = tswap64(rold.rlim_cur);
9107 target_rold->rlim_max = tswap64(rold.rlim_max);
9108 unlock_user_struct(target_rold, arg4, 1);
9109 }
9110 break;
9111 }
3d21d29c
RH		 9112#endif
9113#ifdef TARGET_NR_gethostname
9114 case TARGET_NR_gethostname:
9115 {
9116 char *name = lock_user(VERIFY_WRITE, arg1, arg2, 0);
9117 if (name) {
9118 ret = get_errno(gethostname(name, arg2));
9119 unlock_user(name, arg1, arg2);
9120 } else {
9121 ret = -TARGET_EFAULT;
9122 }
9123 break;
9124 }
89aaf1a6
RV		 9125#endif
9126#ifdef TARGET_NR_atomic_cmpxchg_32
9127 case TARGET_NR_atomic_cmpxchg_32:
9128 {
9129 /* should use start_exclusive from main.c */
9130 abi_ulong mem_value;
9131 if (get_user_u32(mem_value, arg6)) {
9132 target_siginfo_t info;
9133 info.si_signo = SIGSEGV;
9134 info.si_errno = 0;
9135 info.si_code = TARGET_SEGV_MAPERR;
9136 info._sifields._sigfault._addr = arg6;
9137 queue_signal((CPUArchState *)cpu_env, info.si_signo, &info);
9138 ret = 0xdeadbeef;
9139
9140 }
9141 if (mem_value == arg2)
9142 put_user_u32(arg1, arg6);
9143 ret = mem_value;
9144 break;
9145 }
9146#endif
9147#ifdef TARGET_NR_atomic_barrier
9148 case TARGET_NR_atomic_barrier:
9149 {
9150 /* Like the kernel implementation and the qemu arm barrier, no-op this? */
3b899ea7 9151 ret = 0;
89aaf1a6
RV		 9152 break;
9153 }
d0927938 9154#endif
f4f1e10a
ECL		 9155
9156#ifdef TARGET_NR_timer_create
9157 case TARGET_NR_timer_create:
9158 {
9159 /* args: clockid_t clockid, struct sigevent *sevp, timer_t *timerid */
9160
9161 struct sigevent host_sevp = { {0}, }, *phost_sevp = NULL;
9162 struct target_sigevent *ptarget_sevp;
9163 struct target_timer_t *ptarget_timer;
9164
9165 int clkid = arg1;
9166 int timer_index = next_free_host_timer();
9167
9168 if (timer_index < 0) {
9169 ret = -TARGET_EAGAIN;
9170 } else {
9171 timer_t *phtimer = g_posix_timers + timer_index;
9172
9173 if (arg2) {
9174 if (!lock_user_struct(VERIFY_READ, ptarget_sevp, arg2, 1)) {
9175 goto efault;
9176 }
9177
9178 host_sevp.sigev_signo = tswap32(ptarget_sevp->sigev_signo);
9179 host_sevp.sigev_notify = tswap32(ptarget_sevp->sigev_notify);
9180
9181 phost_sevp = &host_sevp;
9182 }
9183
9184 ret = get_errno(timer_create(clkid, phost_sevp, phtimer));
9185 if (ret) {
9186 phtimer = NULL;
9187 } else {
9188 if (!lock_user_struct(VERIFY_WRITE, ptarget_timer, arg3, 1)) {
9189 goto efault;
9190 }
9191 ptarget_timer->ptr = tswap32(0xcafe0000 | timer_index);
9192 unlock_user_struct(ptarget_timer, arg3, 1);
9193 }
9194 }
9195 break;
9196 }
9197#endif
9198
9199#ifdef TARGET_NR_timer_settime
9200 case TARGET_NR_timer_settime:
9201 {
9202 /* args: timer_t timerid, int flags, const struct itimerspec *new_value,
9203 * struct itimerspec * old_value */
9204 arg1 &= 0xffff;
9205 if (arg3 == 0 || arg1 < 0 || arg1 >= ARRAY_SIZE(g_posix_timers)) {
9206 ret = -TARGET_EINVAL;
9207 } else {
9208 timer_t htimer = g_posix_timers[arg1];
9209 struct itimerspec hspec_new = {{0},}, hspec_old = {{0},};
9210
9211 target_to_host_itimerspec(&hspec_new, arg3);
9212 ret = get_errno(
9213 timer_settime(htimer, arg2, &hspec_new, &hspec_old));
9214 host_to_target_itimerspec(arg2, &hspec_old);
9215 }
9216 break;
9217 }
9218#endif
9219
9220#ifdef TARGET_NR_timer_gettime
9221 case TARGET_NR_timer_gettime:
9222 {
9223 /* args: timer_t timerid, struct itimerspec *curr_value */
9224 arg1 &= 0xffff;
9225 if (!arg2) {
9226 return -TARGET_EFAULT;
9227 } else if (arg1 < 0 || arg1 >= ARRAY_SIZE(g_posix_timers)) {
9228 ret = -TARGET_EINVAL;
9229 } else {
9230 timer_t htimer = g_posix_timers[arg1];
9231 struct itimerspec hspec;
9232 ret = get_errno(timer_gettime(htimer, &hspec));
9233
9234 if (host_to_target_itimerspec(arg2, &hspec)) {
9235 ret = -TARGET_EFAULT;
9236 }
9237 }
9238 break;
9239 }
9240#endif
9241
9242#ifdef TARGET_NR_timer_getoverrun
9243 case TARGET_NR_timer_getoverrun:
9244 {
9245 /* args: timer_t timerid */
9246 arg1 &= 0xffff;
9247 if (arg1 < 0 || arg1 >= ARRAY_SIZE(g_posix_timers)) {
9248 ret = -TARGET_EINVAL;
9249 } else {
9250 timer_t htimer = g_posix_timers[arg1];
9251 ret = get_errno(timer_getoverrun(htimer));
9252 }
9253 break;
9254 }
9255#endif
9256
9257#ifdef TARGET_NR_timer_delete
9258 case TARGET_NR_timer_delete:
9259 {
9260 /* args: timer_t timerid */
9261 arg1 &= 0xffff;
9262 if (arg1 < 0 || arg1 >= ARRAY_SIZE(g_posix_timers)) {
9263 ret = -TARGET_EINVAL;
9264 } else {
9265 timer_t htimer = g_posix_timers[arg1];
9266 ret = get_errno(timer_delete(htimer));
9267 g_posix_timers[arg1] = 0;
9268 }
9269 break;
9270 }
9271#endif
9272
31e31b8a
FB		 9273 default:
9274 unimplemented:
5cd4393b 9275 gemu_log("qemu: Unsupported syscall: %d\n", num);
4f2b1fe8 9276#if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list)
5cd4393b 9277 unimplemented_nowarn:
80a9d035 9278#endif
0da46a6e 9279 ret = -TARGET_ENOSYS;
31e31b8a
FB		 9280 break;
9281 }
579a97f7 9282fail:
c573ff67 9283#ifdef DEBUG
0bf9e31a 9284 gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret);
c573ff67 9285#endif
b92c47c1
TS		 9286 if(do_strace)
9287 print_syscall_ret(num, ret);
31e31b8a 9288 return ret;
579a97f7
FB		 9289efault:
9290 ret = -TARGET_EFAULT;
9291 goto fail;
31e31b8a 9292}
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