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target/arm: Enable BTI for -cpu max
[qemu.git] / linux-user / syscall.c
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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
d39594e9 20#include "qemu/osdep.h"
f348b6d1
VB		 21#include "qemu/cutils.h"
22#include "qemu/path.h"
31e31b8a
FB		 23#include <elf.h>
24#include <endian.h>
c56dc774 25#include <grp.h>
d08d3bb8
TS		 26#include <sys/ipc.h>
27#include <sys/msg.h>
31e31b8a 28#include <sys/wait.h>
31e31b8a 29#include <sys/mount.h>
586b0bef
JS		 30#include <sys/file.h>
31#include <sys/fsuid.h>
32#include <sys/personality.h>
39b9aae1 33#include <sys/prctl.h>
31e31b8a 34#include <sys/resource.h>
31e31b8a 35#include <sys/swap.h>
e0eb210e 36#include <linux/capability.h>
31e31b8a 37#include <sched.h>
19f59bce 38#include <sys/timex.h>
31e31b8a 39#include <sys/socket.h>
607175e0 40#include <sys/un.h>
31e31b8a 41#include <sys/uio.h>
0839f11c 42#include <poll.h>
32f36bce 43#include <sys/times.h>
8853f86e 44#include <sys/shm.h>
fa294816 45#include <sys/sem.h>
56c8f68f 46#include <sys/statfs.h>
ebc05488 47#include <utime.h>
a5448a7d 48#include <sys/sysinfo.h>
e36800c9 49#include <sys/signalfd.h>
72f03900 50//#include <sys/user.h>
8853f86e 51#include <netinet/ip.h>
7854b056 52#include <netinet/tcp.h>
86fcd946 53#include <linux/wireless.h>
920394db 54#include <linux/icmp.h>
ee1ac3a1
HD		 55#include <linux/icmpv6.h>
56#include <linux/errqueue.h>
d6d6d6fe 57#include <linux/random.h>
5a61cb60 58#include "qemu-common.h"
d80a1905
RV		 59#ifdef CONFIG_TIMERFD
60#include <sys/timerfd.h>
61#endif
9788c9ca 62#ifdef TARGET_GPROF
6d946cda
AJ		 63#include <sys/gmon.h>
64#endif
c2882b96
RV		 65#ifdef CONFIG_EVENTFD
66#include <sys/eventfd.h>
67#endif
3b6edd16
PM		 68#ifdef CONFIG_EPOLL
69#include <sys/epoll.h>
70#endif
a790ae38 71#ifdef CONFIG_ATTR
1de7afc9 72#include "qemu/xattr.h"
a790ae38 73#endif
a8fd1aba
PM		 74#ifdef CONFIG_SENDFILE
75#include <sys/sendfile.h>
76#endif
31e31b8a
FB		 77
78#define termios host_termios
79#define winsize host_winsize
80#define termio host_termio
04369ff2
FB		 81#define sgttyb host_sgttyb /* same as target */
82#define tchars host_tchars /* same as target */
83#define ltchars host_ltchars /* same as target */
31e31b8a
FB		 84
85#include <linux/termios.h>
86#include <linux/unistd.h>
31e31b8a
FB		 87#include <linux/cdrom.h>
88#include <linux/hdreg.h>
89#include <linux/soundcard.h>
19b84f3c 90#include <linux/kd.h>
8fbd6b52 91#include <linux/mtio.h>
350d1779 92#include <linux/fs.h>
dace20dc 93#if defined(CONFIG_FIEMAP)
285da2b9 94#include <linux/fiemap.h>
dace20dc 95#endif
f7680a55 96#include <linux/fb.h>
6c753a63
CT		 97#if defined(CONFIG_USBFS)
98#include <linux/usbdevice_fs.h>
a133367e 99#include <linux/usb/ch9.h>
6c753a63 100#endif
f7680a55 101#include <linux/vt.h>
56e904ec 102#include <linux/dm-ioctl.h>
c07ecc68 103#include <linux/reboot.h>
7ff7b666 104#include <linux/route.h>
f57d4192 105#include <linux/filter.h>
fff8c539 106#include <linux/blkpg.h>
a82ea939 107#include <netpacket/packet.h>
6c5b5645 108#include <linux/netlink.h>
d7e4036e 109#include "linux_loop.h"
18cb0088 110#include "uname.h"
31e31b8a 111
3ef693a0 112#include "qemu.h"
f7e6a401 113#include "fd-trans.h"
31e31b8a 114
5ea2fc84
PM		 115#ifndef CLONE_IO
116#define CLONE_IO 0x80000000 /* Clone io context */
117#endif
118
119/* We can't directly call the host clone syscall, because this will
120 * badly confuse libc (breaking mutexes, for example). So we must
121 * divide clone flags into:
122 * * flag combinations that look like pthread_create()
123 * * flag combinations that look like fork()
124 * * flags we can implement within QEMU itself
125 * * flags we can't support and will return an error for
126 */
127/* For thread creation, all these flags must be present; for
128 * fork, none must be present.
129 */
130#define CLONE_THREAD_FLAGS \
131 (CLONE_VM | CLONE_FS | CLONE_FILES | \
132 CLONE_SIGHAND | CLONE_THREAD | CLONE_SYSVSEM)
133
134/* These flags are ignored:
135 * CLONE_DETACHED is now ignored by the kernel;
136 * CLONE_IO is just an optimisation hint to the I/O scheduler
137 */
138#define CLONE_IGNORED_FLAGS \
139 (CLONE_DETACHED | CLONE_IO)
140
141/* Flags for fork which we can implement within QEMU itself */
142#define CLONE_OPTIONAL_FORK_FLAGS \
143 (CLONE_SETTLS | CLONE_PARENT_SETTID | \
144 CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID)
145
146/* Flags for thread creation which we can implement within QEMU itself */
147#define CLONE_OPTIONAL_THREAD_FLAGS \
148 (CLONE_SETTLS | CLONE_PARENT_SETTID | \
149 CLONE_CHILD_CLEARTID | CLONE_CHILD_SETTID | CLONE_PARENT)
150
151#define CLONE_INVALID_FORK_FLAGS \
152 (~(CSIGNAL | CLONE_OPTIONAL_FORK_FLAGS | CLONE_IGNORED_FLAGS))
153
154#define CLONE_INVALID_THREAD_FLAGS \
155 (~(CSIGNAL | CLONE_THREAD_FLAGS | CLONE_OPTIONAL_THREAD_FLAGS | \
156 CLONE_IGNORED_FLAGS))
157
158/* CLONE_VFORK is special cased early in do_fork(). The other flag bits
159 * have almost all been allocated. We cannot support any of
160 * CLONE_NEWNS, CLONE_NEWCGROUP, CLONE_NEWUTS, CLONE_NEWIPC,
161 * CLONE_NEWUSER, CLONE_NEWPID, CLONE_NEWNET, CLONE_PTRACE, CLONE_UNTRACED.
162 * The checks against the invalid thread masks above will catch these.
163 * (The one remaining unallocated bit is 0x1000 which used to be CLONE_PID.)
164 */
30813cea 165
71a8f7fe
TB		 166/* Define DEBUG_ERESTARTSYS to force every syscall to be restarted
167 * once. This exercises the codepaths for restart.
168 */
169//#define DEBUG_ERESTARTSYS
31e31b8a 170
1a9353d2 171//#include <linux/msdos_fs.h>
6556a833
AJ		 172#define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct linux_dirent [2])
173#define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct linux_dirent [2])
1a9353d2 174
70a194b9
FB		 175#undef _syscall0
176#undef _syscall1
177#undef _syscall2
178#undef _syscall3
179#undef _syscall4
180#undef _syscall5
83fcb515 181#undef _syscall6
70a194b9 182
83fcb515 183#define _syscall0(type,name) \
8fcd3692 184static type name (void) \
83fcb515
FB		 185{ \
186 return syscall(__NR_##name); \
187}
70a194b9 188
83fcb515 189#define _syscall1(type,name,type1,arg1) \
8fcd3692 190static type name (type1 arg1) \
83fcb515
FB		 191{ \
192 return syscall(__NR_##name, arg1); \
70a194b9
FB		 193}
194
83fcb515 195#define _syscall2(type,name,type1,arg1,type2,arg2) \
8fcd3692 196static type name (type1 arg1,type2 arg2) \
83fcb515
FB		 197{ \
198 return syscall(__NR_##name, arg1, arg2); \
70a194b9
FB		 199}
200
83fcb515 201#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
8fcd3692 202static type name (type1 arg1,type2 arg2,type3 arg3) \
83fcb515
FB		 203{ \
204 return syscall(__NR_##name, arg1, arg2, arg3); \
70a194b9
FB		 205}
206
83fcb515 207#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
8fcd3692 208static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \
83fcb515
FB		 209{ \
210 return syscall(__NR_##name, arg1, arg2, arg3, arg4); \
70a194b9
FB		 211}
212
83fcb515
FB		 213#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
214 type5,arg5) \
8fcd3692 215static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
83fcb515
FB		 216{ \
217 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
70a194b9
FB		 218}
219
83fcb515
FB		 220
221#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
222 type5,arg5,type6,arg6) \
8fcd3692
BS		 223static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, \
224 type6 arg6) \
83fcb515
FB		 225{ \
226 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
70a194b9 227}
83fcb515 228
70a194b9 229
31e31b8a 230#define __NR_sys_uname __NR_uname
72f03900 231#define __NR_sys_getcwd1 __NR_getcwd
72f03900 232#define __NR_sys_getdents __NR_getdents
dab2ed99 233#define __NR_sys_getdents64 __NR_getdents64
c6cda17a 234#define __NR_sys_getpriority __NR_getpriority
66fb9763 235#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
cf8b8bfc 236#define __NR_sys_rt_tgsigqueueinfo __NR_rt_tgsigqueueinfo
7494b0f9 237#define __NR_sys_syslog __NR_syslog
bd0c5661 238#define __NR_sys_futex __NR_futex
39b59763
AJ		 239#define __NR_sys_inotify_init __NR_inotify_init
240#define __NR_sys_inotify_add_watch __NR_inotify_add_watch
241#define __NR_sys_inotify_rm_watch __NR_inotify_rm_watch
31e31b8a 242
b1cef6d0 243#if defined(__alpha__) || defined(__x86_64__) || defined(__s390x__)
9af9eaaa
FB		 244#define __NR__llseek __NR_lseek
245#endif
246
a29e5ba2
JH		 247/* Newer kernel ports have llseek() instead of _llseek() */
248#if defined(TARGET_NR_llseek) && !defined(TARGET_NR__llseek)
249#define TARGET_NR__llseek TARGET_NR_llseek
250#endif
251
72f03900 252#ifdef __NR_gettid
31e31b8a 253_syscall0(int, gettid)
72f03900 254#else
0da46a6e
TS		 255/* This is a replacement for the host gettid() and must return a host
256 errno. */
72f03900
FB		 257static int gettid(void) {
258 return -ENOSYS;
259}
260#endif
2b3f64cb
PM		 261
262/* For the 64-bit guest on 32-bit host case we must emulate
263 * getdents using getdents64, because otherwise the host
264 * might hand us back more dirent records than we can fit
265 * into the guest buffer after structure format conversion.
266 * Otherwise we emulate getdents with getdents if the host has it.
267 */
268#if defined(__NR_getdents) && HOST_LONG_BITS >= TARGET_ABI_BITS
269#define EMULATE_GETDENTS_WITH_GETDENTS
270#endif
271
272#if defined(TARGET_NR_getdents) && defined(EMULATE_GETDENTS_WITH_GETDENTS)
3b3f24ad 273_syscall3(int, sys_getdents, uint, fd, struct linux_dirent *, dirp, uint, count);
3307e236 274#endif
2b3f64cb
PM		 275#if (defined(TARGET_NR_getdents) && \
276 !defined(EMULATE_GETDENTS_WITH_GETDENTS)) || \
3307e236 277 (defined(TARGET_NR_getdents64) && defined(__NR_getdents64))
3b3f24ad
AJ		 278_syscall3(int, sys_getdents64, uint, fd, struct linux_dirent64 *, dirp, uint, count);
279#endif
d35b261c 280#if defined(TARGET_NR__llseek) && defined(__NR_llseek)
3b3f24ad
AJ		 281_syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo,
282 loff_t *, res, uint, wh);
283#endif
c1a402a7 284_syscall3(int, sys_rt_sigqueueinfo, pid_t, pid, int, sig, siginfo_t *, uinfo)
cf8b8bfc
MS		 285_syscall4(int, sys_rt_tgsigqueueinfo, pid_t, pid, pid_t, tid, int, sig,
286 siginfo_t *, uinfo)
3b3f24ad 287_syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
3b3f24ad
AJ		 288#ifdef __NR_exit_group
289_syscall1(int,exit_group,int,error_code)
290#endif
291#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
292_syscall1(int,set_tid_address,int *,tidptr)
293#endif
3b3f24ad
AJ		 294#if defined(TARGET_NR_futex) && defined(__NR_futex)
295_syscall6(int,sys_futex,int *,uaddr,int,op,int,val,
296 const struct timespec *,timeout,int *,uaddr2,int,val3)
297#endif
737de1d1
MF		 298#define __NR_sys_sched_getaffinity __NR_sched_getaffinity
299_syscall3(int, sys_sched_getaffinity, pid_t, pid, unsigned int, len,
300 unsigned long *, user_mask_ptr);
301#define __NR_sys_sched_setaffinity __NR_sched_setaffinity
302_syscall3(int, sys_sched_setaffinity, pid_t, pid, unsigned int, len,
303 unsigned long *, user_mask_ptr);
b827c3ed
ST		 304#define __NR_sys_getcpu __NR_getcpu
305_syscall3(int, sys_getcpu, unsigned *, cpu, unsigned *, node, void *, tcache);
0f6b4d21
AG		 306_syscall4(int, reboot, int, magic1, int, magic2, unsigned int, cmd,
307 void *, arg);
e0eb210e
PM		 308_syscall2(int, capget, struct __user_cap_header_struct *, header,
309 struct __user_cap_data_struct *, data);
310_syscall2(int, capset, struct __user_cap_header_struct *, header,
311 struct __user_cap_data_struct *, data);
ab31cda3
PB		 312#if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get)
313_syscall2(int, ioprio_get, int, which, int, who)
314#endif
315#if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set)
316_syscall3(int, ioprio_set, int, which, int, who, int, ioprio)
317#endif
f894efd1
LV		 318#if defined(TARGET_NR_getrandom) && defined(__NR_getrandom)
319_syscall3(int, getrandom, void *, buf, size_t, buflen, unsigned int, flags)
320#endif
3b3f24ad 321
2f14788c
LV		 322#if defined(TARGET_NR_kcmp) && defined(__NR_kcmp)
323_syscall5(int, kcmp, pid_t, pid1, pid_t, pid2, int, type,
324 unsigned long, idx1, unsigned long, idx2)
325#endif
326
3b3f24ad
AJ		 327static bitmask_transtbl fcntl_flags_tbl[] = {
328 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, },
329 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, },
330 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, },
331 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, },
332 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, },
333 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, },
334 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, },
335 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, },
afc8763f 336 { TARGET_O_SYNC, TARGET_O_DSYNC, O_SYNC, O_DSYNC, },
3b3f24ad
AJ		 337 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, },
338 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, },
339 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
340 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, },
3b3f24ad
AJ		 341#if defined(O_DIRECT)
342 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, },
afc8763f
RH		 343#endif
344#if defined(O_NOATIME)
345 { TARGET_O_NOATIME, TARGET_O_NOATIME, O_NOATIME, O_NOATIME },
346#endif
347#if defined(O_CLOEXEC)
348 { TARGET_O_CLOEXEC, TARGET_O_CLOEXEC, O_CLOEXEC, O_CLOEXEC },
349#endif
350#if defined(O_PATH)
351 { TARGET_O_PATH, TARGET_O_PATH, O_PATH, O_PATH },
5f9cee46
RV		 352#endif
353#if defined(O_TMPFILE)
354 { TARGET_O_TMPFILE, TARGET_O_TMPFILE, O_TMPFILE, O_TMPFILE },
afc8763f
RH		 355#endif
356 /* Don't terminate the list prematurely on 64-bit host+guest. */
357#if TARGET_O_LARGEFILE != 0 || O_LARGEFILE != 0
358 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
3b3f24ad
AJ		 359#endif
360 { 0, 0, 0, 0 }
361};
362
3b3f24ad
AJ		 363static int sys_getcwd1(char *buf, size_t size)
364{
365 if (getcwd(buf, size) == NULL) {
366 /* getcwd() sets errno */
367 return (-1);
368 }
aaf4ad39 369 return strlen(buf)+1;
3b3f24ad
AJ		 370}
371
1acae9f2 372#ifdef TARGET_NR_utimensat
700fa58e 373#if defined(__NR_utimensat)
1acae9f2 374#define __NR_sys_utimensat __NR_utimensat
9007f0ef
TS		 375_syscall4(int,sys_utimensat,int,dirfd,const char *,pathname,
376 const struct timespec *,tsp,int,flags)
1acae9f2
PM		 377#else
378static int sys_utimensat(int dirfd, const char *pathname,
379 const struct timespec times[2], int flags)
380{
381 errno = ENOSYS;
382 return -1;
383}
9007f0ef 384#endif
1acae9f2 385#endif /* TARGET_NR_utimensat */
3b3f24ad 386
95d0307c
AS		 387#ifdef TARGET_NR_renameat2
388#if defined(__NR_renameat2)
389#define __NR_sys_renameat2 __NR_renameat2
390_syscall5(int, sys_renameat2, int, oldfd, const char *, old, int, newfd,
391 const char *, new, unsigned int, flags)
392#else
393static int sys_renameat2(int oldfd, const char *old,
394 int newfd, const char *new, int flags)
395{
396 if (flags == 0) {
397 return renameat(oldfd, old, newfd, new);
398 }
399 errno = ENOSYS;
400 return -1;
401}
402#endif
403#endif /* TARGET_NR_renameat2 */
404
3b3f24ad 405#ifdef CONFIG_INOTIFY
8690e420 406#include <sys/inotify.h>
3b3f24ad 407
39b59763 408#if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
3b3f24ad
AJ		 409static int sys_inotify_init(void)
410{
411 return (inotify_init());
412}
39b59763
AJ		 413#endif
414#if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
3b3f24ad
AJ		 415static int sys_inotify_add_watch(int fd,const char *pathname, int32_t mask)
416{
417 return (inotify_add_watch(fd, pathname, mask));
418}
39b59763
AJ		 419#endif
420#if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
3b3f24ad
AJ		 421static int sys_inotify_rm_watch(int fd, int32_t wd)
422{
8690e420 423 return (inotify_rm_watch(fd, wd));
3b3f24ad 424}
bd0c5661 425#endif
c05c7a73
RV		 426#ifdef CONFIG_INOTIFY1
427#if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
428static int sys_inotify_init1(int flags)
429{
430 return (inotify_init1(flags));
431}
432#endif
433#endif
3b3f24ad
AJ		 434#else
435/* Userspace can usually survive runtime without inotify */
436#undef TARGET_NR_inotify_init
c05c7a73 437#undef TARGET_NR_inotify_init1
3b3f24ad
AJ		 438#undef TARGET_NR_inotify_add_watch
439#undef TARGET_NR_inotify_rm_watch
440#endif /* CONFIG_INOTIFY */
441
163a05a8
PM		 442#if defined(TARGET_NR_prlimit64)
443#ifndef __NR_prlimit64
444# define __NR_prlimit64 -1
445#endif
446#define __NR_sys_prlimit64 __NR_prlimit64
447/* The glibc rlimit structure may not be that used by the underlying syscall */
448struct host_rlimit64 {
449 uint64_t rlim_cur;
450 uint64_t rlim_max;
451};
452_syscall4(int, sys_prlimit64, pid_t, pid, int, resource,
453 const struct host_rlimit64 *, new_limit,
454 struct host_rlimit64 *, old_limit)
455#endif
456
f4f1e10a
ECL		 457
458#if defined(TARGET_NR_timer_create)
459/* Maxiumum of 32 active POSIX timers allowed at any one time. */
460static timer_t g_posix_timers[32] = { 0, } ;
461
462static inline int next_free_host_timer(void)
463{
464 int k ;
465 /* FIXME: Does finding the next free slot require a lock? */
466 for (k = 0; k < ARRAY_SIZE(g_posix_timers); k++) {
467 if (g_posix_timers[k] == 0) {
468 g_posix_timers[k] = (timer_t) 1;
469 return k;
470 }
471 }
472 return -1;
473}
474#endif
475
48e515d4 476/* ARM EABI and MIPS expect 64bit types aligned even on pairs or registers */
4a1def4e 477#ifdef TARGET_ARM
8bf8e9df
JC		 478static inline int regpairs_aligned(void *cpu_env, int num)
479{
48e515d4
RV		 480 return ((((CPUARMState *)cpu_env)->eabi) == 1) ;
481}
d7779acb 482#elif defined(TARGET_MIPS) && (TARGET_ABI_BITS == 32)
8bf8e9df 483static inline int regpairs_aligned(void *cpu_env, int num) { return 1; }
4a1def4e
AG		 484#elif defined(TARGET_PPC) && !defined(TARGET_PPC64)
485/* SysV AVI for PPC32 expects 64bit parameters to be passed on odd/even pairs
486 * of registers which translates to the same as ARM/MIPS, because we start with
487 * r3 as arg1 */
8bf8e9df
JC		 488static inline int regpairs_aligned(void *cpu_env, int num) { return 1; }
489#elif defined(TARGET_SH4)
490/* SH4 doesn't align register pairs, except for p{read,write}64 */
491static inline int regpairs_aligned(void *cpu_env, int num)
492{
493 switch (num) {
494 case TARGET_NR_pread64:
495 case TARGET_NR_pwrite64:
496 return 1;
497
498 default:
499 return 0;
500 }
501}
ba7651fb
MF		 502#elif defined(TARGET_XTENSA)
503static inline int regpairs_aligned(void *cpu_env, int num) { return 1; }
48e515d4 504#else
8bf8e9df 505static inline int regpairs_aligned(void *cpu_env, int num) { return 0; }
48e515d4
RV		 506#endif
507
b92c47c1
TS		 508#define ERRNO_TABLE_SIZE 1200
509
510/* target_to_host_errno_table[] is initialized from
511 * host_to_target_errno_table[] in syscall_init(). */
512static uint16_t target_to_host_errno_table[ERRNO_TABLE_SIZE] = {
513};
514
637947f1 515/*
fe8f096b 516 * This list is the union of errno values overridden in asm-<arch>/errno.h
637947f1
TS		 517 * minus the errnos that are not actually generic to all archs.
518 */
b92c47c1 519static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = {
08703b9f 520 [EAGAIN] = TARGET_EAGAIN,
637947f1
TS		 521 [EIDRM] = TARGET_EIDRM,
522 [ECHRNG] = TARGET_ECHRNG,
523 [EL2NSYNC] = TARGET_EL2NSYNC,
524 [EL3HLT] = TARGET_EL3HLT,
525 [EL3RST] = TARGET_EL3RST,
526 [ELNRNG] = TARGET_ELNRNG,
527 [EUNATCH] = TARGET_EUNATCH,
528 [ENOCSI] = TARGET_ENOCSI,
529 [EL2HLT] = TARGET_EL2HLT,
530 [EDEADLK] = TARGET_EDEADLK,
531 [ENOLCK] = TARGET_ENOLCK,
532 [EBADE] = TARGET_EBADE,
533 [EBADR] = TARGET_EBADR,
534 [EXFULL] = TARGET_EXFULL,
535 [ENOANO] = TARGET_ENOANO,
536 [EBADRQC] = TARGET_EBADRQC,
537 [EBADSLT] = TARGET_EBADSLT,
538 [EBFONT] = TARGET_EBFONT,
539 [ENOSTR] = TARGET_ENOSTR,
540 [ENODATA] = TARGET_ENODATA,
541 [ETIME] = TARGET_ETIME,
542 [ENOSR] = TARGET_ENOSR,
543 [ENONET] = TARGET_ENONET,
544 [ENOPKG] = TARGET_ENOPKG,
545 [EREMOTE] = TARGET_EREMOTE,
546 [ENOLINK] = TARGET_ENOLINK,
547 [EADV] = TARGET_EADV,
548 [ESRMNT] = TARGET_ESRMNT,
549 [ECOMM] = TARGET_ECOMM,
550 [EPROTO] = TARGET_EPROTO,
551 [EDOTDOT] = TARGET_EDOTDOT,
552 [EMULTIHOP] = TARGET_EMULTIHOP,
553 [EBADMSG] = TARGET_EBADMSG,
554 [ENAMETOOLONG] = TARGET_ENAMETOOLONG,
555 [EOVERFLOW] = TARGET_EOVERFLOW,
556 [ENOTUNIQ] = TARGET_ENOTUNIQ,
557 [EBADFD] = TARGET_EBADFD,
558 [EREMCHG] = TARGET_EREMCHG,
559 [ELIBACC] = TARGET_ELIBACC,
560 [ELIBBAD] = TARGET_ELIBBAD,
561 [ELIBSCN] = TARGET_ELIBSCN,
562 [ELIBMAX] = TARGET_ELIBMAX,
563 [ELIBEXEC] = TARGET_ELIBEXEC,
564 [EILSEQ] = TARGET_EILSEQ,
565 [ENOSYS] = TARGET_ENOSYS,
566 [ELOOP] = TARGET_ELOOP,
567 [ERESTART] = TARGET_ERESTART,
568 [ESTRPIPE] = TARGET_ESTRPIPE,
569 [ENOTEMPTY] = TARGET_ENOTEMPTY,
570 [EUSERS] = TARGET_EUSERS,
571 [ENOTSOCK] = TARGET_ENOTSOCK,
572 [EDESTADDRREQ] = TARGET_EDESTADDRREQ,
573 [EMSGSIZE] = TARGET_EMSGSIZE,
574 [EPROTOTYPE] = TARGET_EPROTOTYPE,
575 [ENOPROTOOPT] = TARGET_ENOPROTOOPT,
576 [EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT,
577 [ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT,
578 [EOPNOTSUPP] = TARGET_EOPNOTSUPP,
579 [EPFNOSUPPORT] = TARGET_EPFNOSUPPORT,
580 [EAFNOSUPPORT] = TARGET_EAFNOSUPPORT,
581 [EADDRINUSE] = TARGET_EADDRINUSE,
582 [EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL,
583 [ENETDOWN] = TARGET_ENETDOWN,
584 [ENETUNREACH] = TARGET_ENETUNREACH,
585 [ENETRESET] = TARGET_ENETRESET,
586 [ECONNABORTED] = TARGET_ECONNABORTED,
587 [ECONNRESET] = TARGET_ECONNRESET,
588 [ENOBUFS] = TARGET_ENOBUFS,
589 [EISCONN] = TARGET_EISCONN,
590 [ENOTCONN] = TARGET_ENOTCONN,
591 [EUCLEAN] = TARGET_EUCLEAN,
592 [ENOTNAM] = TARGET_ENOTNAM,
593 [ENAVAIL] = TARGET_ENAVAIL,
594 [EISNAM] = TARGET_EISNAM,
595 [EREMOTEIO] = TARGET_EREMOTEIO,
0444a3b7 596 [EDQUOT] = TARGET_EDQUOT,
637947f1
TS		 597 [ESHUTDOWN] = TARGET_ESHUTDOWN,
598 [ETOOMANYREFS] = TARGET_ETOOMANYREFS,
599 [ETIMEDOUT] = TARGET_ETIMEDOUT,
600 [ECONNREFUSED] = TARGET_ECONNREFUSED,
601 [EHOSTDOWN] = TARGET_EHOSTDOWN,
602 [EHOSTUNREACH] = TARGET_EHOSTUNREACH,
603 [EALREADY] = TARGET_EALREADY,
604 [EINPROGRESS] = TARGET_EINPROGRESS,
605 [ESTALE] = TARGET_ESTALE,
606 [ECANCELED] = TARGET_ECANCELED,
607 [ENOMEDIUM] = TARGET_ENOMEDIUM,
608 [EMEDIUMTYPE] = TARGET_EMEDIUMTYPE,
b7fe5db7 609#ifdef ENOKEY
637947f1 610 [ENOKEY] = TARGET_ENOKEY,
b7fe5db7
TS		 611#endif
612#ifdef EKEYEXPIRED
637947f1 613 [EKEYEXPIRED] = TARGET_EKEYEXPIRED,
b7fe5db7
TS		 614#endif
615#ifdef EKEYREVOKED
637947f1 616 [EKEYREVOKED] = TARGET_EKEYREVOKED,
b7fe5db7
TS		 617#endif
618#ifdef EKEYREJECTED
637947f1 619 [EKEYREJECTED] = TARGET_EKEYREJECTED,
b7fe5db7
TS		 620#endif
621#ifdef EOWNERDEAD
637947f1 622 [EOWNERDEAD] = TARGET_EOWNERDEAD,
b7fe5db7
TS		 623#endif
624#ifdef ENOTRECOVERABLE
637947f1 625 [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE,
b7fe5db7 626#endif
da39db63
AM		 627#ifdef ENOMSG
628 [ENOMSG] = TARGET_ENOMSG,
629#endif
fe8ed7d5
RH		 630#ifdef ERKFILL
631 [ERFKILL] = TARGET_ERFKILL,
632#endif
633#ifdef EHWPOISON
634 [EHWPOISON] = TARGET_EHWPOISON,
635#endif
b92c47c1 636};
637947f1
TS		 637
638static inline int host_to_target_errno(int err)
639{
2466119c
TB		 640 if (err >= 0 && err < ERRNO_TABLE_SIZE &&
641 host_to_target_errno_table[err]) {
637947f1 642 return host_to_target_errno_table[err];
2466119c 643 }
637947f1
TS		 644 return err;
645}
646
b92c47c1
TS		 647static inline int target_to_host_errno(int err)
648{
2466119c
TB		 649 if (err >= 0 && err < ERRNO_TABLE_SIZE &&
650 target_to_host_errno_table[err]) {
b92c47c1 651 return target_to_host_errno_table[err];
2466119c 652 }
b92c47c1
TS		 653 return err;
654}
655
992f48a0 656static inline abi_long get_errno(abi_long ret)
31e31b8a
FB		 657{
658 if (ret == -1)
637947f1 659 return -host_to_target_errno(errno);
31e31b8a
FB		 660 else
661 return ret;
662}
663
7dcdaeaf 664const char *target_strerror(int err)
b92c47c1 665{
da2a34f7
PM		 666 if (err == TARGET_ERESTARTSYS) {
667 return "To be restarted";
668 }
669 if (err == TARGET_QEMU_ESIGRETURN) {
670 return "Successful exit from sigreturn";
671 }
672
962b289e
AG		 673 if ((err >= ERRNO_TABLE_SIZE) || (err < 0)) {
674 return NULL;
675 }
b92c47c1
TS		 676 return strerror(target_to_host_errno(err));
677}
678
4d330cee
TB		 679#define safe_syscall0(type, name) \
680static type safe_##name(void) \
681{ \
682 return safe_syscall(__NR_##name); \
683}
684
685#define safe_syscall1(type, name, type1, arg1) \
686static type safe_##name(type1 arg1) \
687{ \
688 return safe_syscall(__NR_##name, arg1); \
689}
690
691#define safe_syscall2(type, name, type1, arg1, type2, arg2) \
692static type safe_##name(type1 arg1, type2 arg2) \
693{ \
694 return safe_syscall(__NR_##name, arg1, arg2); \
695}
696
697#define safe_syscall3(type, name, type1, arg1, type2, arg2, type3, arg3) \
698static type safe_##name(type1 arg1, type2 arg2, type3 arg3) \
699{ \
700 return safe_syscall(__NR_##name, arg1, arg2, arg3); \
701}
702
703#define safe_syscall4(type, name, type1, arg1, type2, arg2, type3, arg3, \
704 type4, arg4) \
705static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
706{ \
707 return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4); \
708}
709
710#define safe_syscall5(type, name, type1, arg1, type2, arg2, type3, arg3, \
711 type4, arg4, type5, arg5) \
712static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \
713 type5 arg5) \
714{ \
715 return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \
716}
717
718#define safe_syscall6(type, name, type1, arg1, type2, arg2, type3, arg3, \
719 type4, arg4, type5, arg5, type6, arg6) \
720static type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \
721 type5 arg5, type6 arg6) \
722{ \
723 return safe_syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
724}
725
50afd02b
TB		 726safe_syscall3(ssize_t, read, int, fd, void *, buff, size_t, count)
727safe_syscall3(ssize_t, write, int, fd, const void *, buff, size_t, count)
c10a0738
TB		 728safe_syscall4(int, openat, int, dirfd, const char *, pathname, \
729 int, flags, mode_t, mode)
4af80a37
TB		 730safe_syscall4(pid_t, wait4, pid_t, pid, int *, status, int, options, \
731 struct rusage *, rusage)
732safe_syscall5(int, waitid, idtype_t, idtype, id_t, id, siginfo_t *, infop, \
733 int, options, struct rusage *, rusage)
ffdcbe22 734safe_syscall3(int, execve, const char *, filename, char **, argv, char **, envp)
6df9d38d
PM		 735safe_syscall6(int, pselect6, int, nfds, fd_set *, readfds, fd_set *, writefds, \
736 fd_set *, exceptfds, struct timespec *, timeout, void *, sig)
a6130237
PM		 737safe_syscall5(int, ppoll, struct pollfd *, ufds, unsigned int, nfds,
738 struct timespec *, tsp, const sigset_t *, sigmask,
739 size_t, sigsetsize)
227f0214
PM		 740safe_syscall6(int, epoll_pwait, int, epfd, struct epoll_event *, events,
741 int, maxevents, int, timeout, const sigset_t *, sigmask,
742 size_t, sigsetsize)
d509eeb1
PM		 743safe_syscall6(int,futex,int *,uaddr,int,op,int,val, \
744 const struct timespec *,timeout,int *,uaddr2,int,val3)
2fe4fba1 745safe_syscall2(int, rt_sigsuspend, sigset_t *, newset, size_t, sigsetsize)
bef653d9
PM		 746safe_syscall2(int, kill, pid_t, pid, int, sig)
747safe_syscall2(int, tkill, int, tid, int, sig)
748safe_syscall3(int, tgkill, int, tgid, int, pid, int, sig)
918c03ed
PM		 749safe_syscall3(ssize_t, readv, int, fd, const struct iovec *, iov, int, iovcnt)
750safe_syscall3(ssize_t, writev, int, fd, const struct iovec *, iov, int, iovcnt)
0f26386c
DJ		 751safe_syscall5(ssize_t, preadv, int, fd, const struct iovec *, iov, int, iovcnt,
752 unsigned long, pos_l, unsigned long, pos_h)
f8d00fba
DJ		 753safe_syscall5(ssize_t, pwritev, int, fd, const struct iovec *, iov, int, iovcnt,
754 unsigned long, pos_l, unsigned long, pos_h)
2a3c7619
PM		 755safe_syscall3(int, connect, int, fd, const struct sockaddr *, addr,
756 socklen_t, addrlen)
66687530
PM		 757safe_syscall6(ssize_t, sendto, int, fd, const void *, buf, size_t, len,
758 int, flags, const struct sockaddr *, addr, socklen_t, addrlen)
759safe_syscall6(ssize_t, recvfrom, int, fd, void *, buf, size_t, len,
760 int, flags, struct sockaddr *, addr, socklen_t *, addrlen)
761safe_syscall3(ssize_t, sendmsg, int, fd, const struct msghdr *, msg, int, flags)
762safe_syscall3(ssize_t, recvmsg, int, fd, struct msghdr *, msg, int, flags)
2a845989 763safe_syscall2(int, flock, int, fd, int, operation)
b3f82330
PM		 764safe_syscall4(int, rt_sigtimedwait, const sigset_t *, these, siginfo_t *, uinfo,
765 const struct timespec *, uts, size_t, sigsetsize)
ff6dc130
PM		 766safe_syscall4(int, accept4, int, fd, struct sockaddr *, addr, socklen_t *, len,
767 int, flags)
9e518226
PM		 768safe_syscall2(int, nanosleep, const struct timespec *, req,
769 struct timespec *, rem)
770#ifdef TARGET_NR_clock_nanosleep
771safe_syscall4(int, clock_nanosleep, const clockid_t, clock, int, flags,
772 const struct timespec *, req, struct timespec *, rem)
773#endif
89f9fe44
PM		 774#ifdef __NR_msgsnd
775safe_syscall4(int, msgsnd, int, msgid, const void *, msgp, size_t, sz,
776 int, flags)
777safe_syscall5(int, msgrcv, int, msgid, void *, msgp, size_t, sz,
778 long, msgtype, int, flags)
ffb7ee79
PM		 779safe_syscall4(int, semtimedop, int, semid, struct sembuf *, tsops,
780 unsigned, nsops, const struct timespec *, timeout)
89f9fe44
PM		 781#else
782/* This host kernel architecture uses a single ipc syscall; fake up
783 * wrappers for the sub-operations to hide this implementation detail.
784 * Annoyingly we can't include linux/ipc.h to get the constant definitions
785 * for the call parameter because some structs in there conflict with the
786 * sys/ipc.h ones. So we just define them here, and rely on them being
787 * the same for all host architectures.
788 */
ffb7ee79 789#define Q_SEMTIMEDOP 4
89f9fe44
PM		 790#define Q_MSGSND 11
791#define Q_MSGRCV 12
792#define Q_IPCCALL(VERSION, OP) ((VERSION) << 16 | (OP))
793
794safe_syscall6(int, ipc, int, call, long, first, long, second, long, third,
795 void *, ptr, long, fifth)
796static int safe_msgsnd(int msgid, const void *msgp, size_t sz, int flags)
797{
798 return safe_ipc(Q_IPCCALL(0, Q_MSGSND), msgid, sz, flags, (void *)msgp, 0);
799}
800static int safe_msgrcv(int msgid, void *msgp, size_t sz, long type, int flags)
801{
802 return safe_ipc(Q_IPCCALL(1, Q_MSGRCV), msgid, sz, flags, msgp, type);
803}
ffb7ee79
PM		 804static int safe_semtimedop(int semid, struct sembuf *tsops, unsigned nsops,
805 const struct timespec *timeout)
806{
807 return safe_ipc(Q_IPCCALL(0, Q_SEMTIMEDOP), semid, nsops, 0, tsops,
808 (long)timeout);
809}
89f9fe44 810#endif
d40ecd66
PM		 811#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
812safe_syscall5(int, mq_timedsend, int, mqdes, const char *, msg_ptr,
813 size_t, len, unsigned, prio, const struct timespec *, timeout)
814safe_syscall5(int, mq_timedreceive, int, mqdes, char *, msg_ptr,
815 size_t, len, unsigned *, prio, const struct timespec *, timeout)
816#endif
49ca6f3e
PM		 817/* We do ioctl like this rather than via safe_syscall3 to preserve the
818 * "third argument might be integer or pointer or not present" behaviour of
819 * the libc function.
820 */
821#define safe_ioctl(...) safe_syscall(__NR_ioctl, __VA_ARGS__)
435da5e7
PM		 822/* Similarly for fcntl. Note that callers must always:
823 * pass the F_GETLK64 etc constants rather than the unsuffixed F_GETLK
824 * use the flock64 struct rather than unsuffixed flock
825 * This will then work and use a 64-bit offset for both 32-bit and 64-bit hosts.
826 */
827#ifdef __NR_fcntl64
828#define safe_fcntl(...) safe_syscall(__NR_fcntl64, __VA_ARGS__)
829#else
830#define safe_fcntl(...) safe_syscall(__NR_fcntl, __VA_ARGS__)
831#endif
50afd02b 832
8289d112
PB		 833static inline int host_to_target_sock_type(int host_type)
834{
835 int target_type;
836
837 switch (host_type & 0xf /* SOCK_TYPE_MASK */) {
838 case SOCK_DGRAM:
839 target_type = TARGET_SOCK_DGRAM;
840 break;
841 case SOCK_STREAM:
842 target_type = TARGET_SOCK_STREAM;
843 break;
844 default:
845 target_type = host_type & 0xf /* SOCK_TYPE_MASK */;
846 break;
847 }
848
849#if defined(SOCK_CLOEXEC)
850 if (host_type & SOCK_CLOEXEC) {
851 target_type |= TARGET_SOCK_CLOEXEC;
852 }
853#endif
854
855#if defined(SOCK_NONBLOCK)
856 if (host_type & SOCK_NONBLOCK) {
857 target_type |= TARGET_SOCK_NONBLOCK;
858 }
859#endif
860
861 return target_type;
862}
863
992f48a0
BS		 864static abi_ulong target_brk;
865static abi_ulong target_original_brk;
4d1de87c 866static abi_ulong brk_page;
31e31b8a 867
992f48a0 868void target_set_brk(abi_ulong new_brk)
31e31b8a 869{
4c1de73d 870 target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk);
4d1de87c 871 brk_page = HOST_PAGE_ALIGN(target_brk);
31e31b8a
FB		 872}
873
4d1de87c
CV		 874//#define DEBUGF_BRK(message, args...) do { fprintf(stderr, (message), ## args); } while (0)
875#define DEBUGF_BRK(message, args...)
876
0da46a6e 877/* do_brk() must return target values and target errnos. */
992f48a0 878abi_long do_brk(abi_ulong new_brk)
31e31b8a 879{
992f48a0 880 abi_long mapped_addr;
ef4330c2 881 abi_ulong new_alloc_size;
31e31b8a 882
3a0c6c4a 883 DEBUGF_BRK("do_brk(" TARGET_ABI_FMT_lx ") -> ", new_brk);
4d1de87c
CV		 884
885 if (!new_brk) {
3a0c6c4a 886 DEBUGF_BRK(TARGET_ABI_FMT_lx " (!new_brk)\n", target_brk);
53a5960a 887 return target_brk;
4d1de87c
CV		 888 }
889 if (new_brk < target_original_brk) {
3a0c6c4a
PB		 890 DEBUGF_BRK(TARGET_ABI_FMT_lx " (new_brk < target_original_brk)\n",
891 target_brk);
7ab240ad 892 return target_brk;
4d1de87c 893 }
3b46e624 894
4d1de87c
CV		 895 /* If the new brk is less than the highest page reserved to the
896 * target heap allocation, set it and we're almost done... */
897 if (new_brk <= brk_page) {
898 /* Heap contents are initialized to zero, as for anonymous
899 * mapped pages. */
900 if (new_brk > target_brk) {
901 memset(g2h(target_brk), 0, new_brk - target_brk);
902 }
31e31b8a 903 target_brk = new_brk;
3a0c6c4a 904 DEBUGF_BRK(TARGET_ABI_FMT_lx " (new_brk <= brk_page)\n", target_brk);
72e21db7 905 return target_brk;
31e31b8a
FB		 906 }
907
00faf08c
PM		 908 /* We need to allocate more memory after the brk... Note that
909 * we don't use MAP_FIXED because that will map over the top of
910 * any existing mapping (like the one with the host libc or qemu
911 * itself); instead we treat "mapped but at wrong address" as
912 * a failure and unmap again.
913 */
4d1de87c 914 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page);
5fafdf24 915 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
54936004 916 PROT_READ|PROT_WRITE,
00faf08c
PM		 917 MAP_ANON|MAP_PRIVATE, 0, 0));
918
919 if (mapped_addr == brk_page) {
70afc343
CV		 920 /* Heap contents are initialized to zero, as for anonymous
921 * mapped pages. Technically the new pages are already
922 * initialized to zero since they *are* anonymous mapped
923 * pages, however we have to take care with the contents that
924 * come from the remaining part of the previous page: it may
925 * contains garbage data due to a previous heap usage (grown
926 * then shrunken). */
927 memset(g2h(target_brk), 0, brk_page - target_brk);
928
00faf08c 929 target_brk = new_brk;
4d1de87c 930 brk_page = HOST_PAGE_ALIGN(target_brk);
3a0c6c4a
PB		 931 DEBUGF_BRK(TARGET_ABI_FMT_lx " (mapped_addr == brk_page)\n",
932 target_brk);
00faf08c
PM		 933 return target_brk;
934 } else if (mapped_addr != -1) {
935 /* Mapped but at wrong address, meaning there wasn't actually
936 * enough space for this brk.
937 */
938 target_munmap(mapped_addr, new_alloc_size);
939 mapped_addr = -1;
3a0c6c4a 940 DEBUGF_BRK(TARGET_ABI_FMT_lx " (mapped_addr != -1)\n", target_brk);
4d1de87c
CV		 941 }
942 else {
3a0c6c4a 943 DEBUGF_BRK(TARGET_ABI_FMT_lx " (otherwise)\n", target_brk);
00faf08c 944 }
7ab240ad 945
7dd46c02
RH		 946#if defined(TARGET_ALPHA)
947 /* We (partially) emulate OSF/1 on Alpha, which requires we
948 return a proper errno, not an unchanged brk value. */
00faf08c 949 return -TARGET_ENOMEM;
7dd46c02 950#endif
00faf08c 951 /* For everything else, return the previous break. */
7ab240ad 952 return target_brk;
31e31b8a
FB		 953}
954
26edcf41
TS		 955static inline abi_long copy_from_user_fdset(fd_set *fds,
956 abi_ulong target_fds_addr,
957 int n)
31e31b8a 958{
26edcf41
TS		 959 int i, nw, j, k;
960 abi_ulong b, *target_fds;
961
b1b2db29 962 nw = DIV_ROUND_UP(n, TARGET_ABI_BITS);
26edcf41
TS		 963 if (!(target_fds = lock_user(VERIFY_READ,
964 target_fds_addr,
965 sizeof(abi_ulong) * nw,
966 1)))
967 return -TARGET_EFAULT;
968
969 FD_ZERO(fds);
970 k = 0;
971 for (i = 0; i < nw; i++) {
972 /* grab the abi_ulong */
973 __get_user(b, &target_fds[i]);
974 for (j = 0; j < TARGET_ABI_BITS; j++) {
975 /* check the bit inside the abi_ulong */
976 if ((b >> j) & 1)
977 FD_SET(k, fds);
978 k++;
31e31b8a 979 }
31e31b8a 980 }
26edcf41
TS		 981
982 unlock_user(target_fds, target_fds_addr, 0);
983
984 return 0;
31e31b8a
FB		 985}
986
055e0906
MF		 987static inline abi_ulong copy_from_user_fdset_ptr(fd_set *fds, fd_set **fds_ptr,
988 abi_ulong target_fds_addr,
989 int n)
990{
991 if (target_fds_addr) {
992 if (copy_from_user_fdset(fds, target_fds_addr, n))
993 return -TARGET_EFAULT;
994 *fds_ptr = fds;
995 } else {
996 *fds_ptr = NULL;
997 }
998 return 0;
999}
1000
26edcf41
TS		 1001static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr,
1002 const fd_set *fds,
1003 int n)
31e31b8a 1004{
31e31b8a 1005 int i, nw, j, k;
992f48a0 1006 abi_long v;
26edcf41 1007 abi_ulong *target_fds;
31e31b8a 1008
b1b2db29 1009 nw = DIV_ROUND_UP(n, TARGET_ABI_BITS);
26edcf41
TS		 1010 if (!(target_fds = lock_user(VERIFY_WRITE,
1011 target_fds_addr,
1012 sizeof(abi_ulong) * nw,
1013 0)))
1014 return -TARGET_EFAULT;
1015
1016 k = 0;
1017 for (i = 0; i < nw; i++) {
1018 v = 0;
1019 for (j = 0; j < TARGET_ABI_BITS; j++) {
9ab709be 1020 v |= ((abi_ulong)(FD_ISSET(k, fds) != 0) << j);
26edcf41 1021 k++;
31e31b8a 1022 }
26edcf41 1023 __put_user(v, &target_fds[i]);
31e31b8a 1024 }
26edcf41
TS		 1025
1026 unlock_user(target_fds, target_fds_addr, sizeof(abi_ulong) * nw);
1027
1028 return 0;
31e31b8a
FB		 1029}
1030
c596ed17
FB		 1031#if defined(__alpha__)
1032#define HOST_HZ 1024
1033#else
1034#define HOST_HZ 100
1035#endif
1036
992f48a0 1037static inline abi_long host_to_target_clock_t(long ticks)
c596ed17
FB		 1038{
1039#if HOST_HZ == TARGET_HZ
1040 return ticks;
1041#else
1042 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
1043#endif
1044}
1045
579a97f7
FB		 1046static inline abi_long host_to_target_rusage(abi_ulong target_addr,
1047 const struct rusage *rusage)
b409186b 1048{
53a5960a
PB		 1049 struct target_rusage *target_rusage;
1050
579a97f7
FB		 1051 if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0))
1052 return -TARGET_EFAULT;
cbb21eed
MB		 1053 target_rusage->ru_utime.tv_sec = tswapal(rusage->ru_utime.tv_sec);
1054 target_rusage->ru_utime.tv_usec = tswapal(rusage->ru_utime.tv_usec);
1055 target_rusage->ru_stime.tv_sec = tswapal(rusage->ru_stime.tv_sec);
1056 target_rusage->ru_stime.tv_usec = tswapal(rusage->ru_stime.tv_usec);
1057 target_rusage->ru_maxrss = tswapal(rusage->ru_maxrss);
1058 target_rusage->ru_ixrss = tswapal(rusage->ru_ixrss);
1059 target_rusage->ru_idrss = tswapal(rusage->ru_idrss);
1060 target_rusage->ru_isrss = tswapal(rusage->ru_isrss);
1061 target_rusage->ru_minflt = tswapal(rusage->ru_minflt);
1062 target_rusage->ru_majflt = tswapal(rusage->ru_majflt);
1063 target_rusage->ru_nswap = tswapal(rusage->ru_nswap);
1064 target_rusage->ru_inblock = tswapal(rusage->ru_inblock);
1065 target_rusage->ru_oublock = tswapal(rusage->ru_oublock);
1066 target_rusage->ru_msgsnd = tswapal(rusage->ru_msgsnd);
1067 target_rusage->ru_msgrcv = tswapal(rusage->ru_msgrcv);
1068 target_rusage->ru_nsignals = tswapal(rusage->ru_nsignals);
1069 target_rusage->ru_nvcsw = tswapal(rusage->ru_nvcsw);
1070 target_rusage->ru_nivcsw = tswapal(rusage->ru_nivcsw);
53a5960a 1071 unlock_user_struct(target_rusage, target_addr, 1);
579a97f7
FB		 1072
1073 return 0;
b409186b
FB		 1074}
1075
cbb21eed 1076static inline rlim_t target_to_host_rlim(abi_ulong target_rlim)
81bbe906 1077{
cbb21eed 1078 abi_ulong target_rlim_swap;
95b33b2f
WT		 1079 rlim_t result;
1080
cbb21eed
MB		 1081 target_rlim_swap = tswapal(target_rlim);
1082 if (target_rlim_swap == TARGET_RLIM_INFINITY)
1083 return RLIM_INFINITY;
1084
1085 result = target_rlim_swap;
1086 if (target_rlim_swap != (rlim_t)result)
1087 return RLIM_INFINITY;
95b33b2f
WT		 1088
1089 return result;
81bbe906
TY		 1090}
1091
cbb21eed 1092static inline abi_ulong host_to_target_rlim(rlim_t rlim)
81bbe906 1093{
cbb21eed
MB		 1094 abi_ulong target_rlim_swap;
1095 abi_ulong result;
95b33b2f 1096
cbb21eed 1097 if (rlim == RLIM_INFINITY || rlim != (abi_long)rlim)
95b33b2f 1098 target_rlim_swap = TARGET_RLIM_INFINITY;
81bbe906 1099 else
95b33b2f 1100 target_rlim_swap = rlim;
cbb21eed 1101 result = tswapal(target_rlim_swap);
95b33b2f
WT		 1102
1103 return result;
81bbe906
TY		 1104}
1105
e22b7015
WT		 1106static inline int target_to_host_resource(int code)
1107{
1108 switch (code) {
1109 case TARGET_RLIMIT_AS:
1110 return RLIMIT_AS;
1111 case TARGET_RLIMIT_CORE:
1112 return RLIMIT_CORE;
1113 case TARGET_RLIMIT_CPU:
1114 return RLIMIT_CPU;
1115 case TARGET_RLIMIT_DATA:
1116 return RLIMIT_DATA;
1117 case TARGET_RLIMIT_FSIZE:
1118 return RLIMIT_FSIZE;
1119 case TARGET_RLIMIT_LOCKS:
1120 return RLIMIT_LOCKS;
1121 case TARGET_RLIMIT_MEMLOCK:
1122 return RLIMIT_MEMLOCK;
1123 case TARGET_RLIMIT_MSGQUEUE:
1124 return RLIMIT_MSGQUEUE;
1125 case TARGET_RLIMIT_NICE:
1126 return RLIMIT_NICE;
1127 case TARGET_RLIMIT_NOFILE:
1128 return RLIMIT_NOFILE;
1129 case TARGET_RLIMIT_NPROC:
1130 return RLIMIT_NPROC;
1131 case TARGET_RLIMIT_RSS:
1132 return RLIMIT_RSS;
1133 case TARGET_RLIMIT_RTPRIO:
1134 return RLIMIT_RTPRIO;
1135 case TARGET_RLIMIT_SIGPENDING:
1136 return RLIMIT_SIGPENDING;
1137 case TARGET_RLIMIT_STACK:
1138 return RLIMIT_STACK;
1139 default:
1140 return code;
1141 }
1142}
1143
788f5ec4
TS		 1144static inline abi_long copy_from_user_timeval(struct timeval *tv,
1145 abi_ulong target_tv_addr)
31e31b8a 1146{
53a5960a
PB		 1147 struct target_timeval *target_tv;
1148
788f5ec4 1149 if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1))
579a97f7 1150 return -TARGET_EFAULT;
788f5ec4
TS		 1151
1152 __get_user(tv->tv_sec, &target_tv->tv_sec);
1153 __get_user(tv->tv_usec, &target_tv->tv_usec);
1154
1155 unlock_user_struct(target_tv, target_tv_addr, 0);
579a97f7
FB		 1156
1157 return 0;
31e31b8a
FB		 1158}
1159
788f5ec4
TS		 1160static inline abi_long copy_to_user_timeval(abi_ulong target_tv_addr,
1161 const struct timeval *tv)
31e31b8a 1162{
53a5960a
PB		 1163 struct target_timeval *target_tv;
1164
788f5ec4 1165 if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0))
579a97f7 1166 return -TARGET_EFAULT;
788f5ec4
TS		 1167
1168 __put_user(tv->tv_sec, &target_tv->tv_sec);
1169 __put_user(tv->tv_usec, &target_tv->tv_usec);
1170
1171 unlock_user_struct(target_tv, target_tv_addr, 1);
579a97f7
FB		 1172
1173 return 0;
31e31b8a
FB		 1174}
1175
ef4467e9
PB		 1176static inline abi_long copy_from_user_timezone(struct timezone *tz,
1177 abi_ulong target_tz_addr)
1178{
1179 struct target_timezone *target_tz;
1180
1181 if (!lock_user_struct(VERIFY_READ, target_tz, target_tz_addr, 1)) {
1182 return -TARGET_EFAULT;
1183 }
1184
1185 __get_user(tz->tz_minuteswest, &target_tz->tz_minuteswest);
1186 __get_user(tz->tz_dsttime, &target_tz->tz_dsttime);
1187
1188 unlock_user_struct(target_tz, target_tz_addr, 0);
1189
1190 return 0;
1191}
1192
8ec9cf89
NF		 1193#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
1194#include <mqueue.h>
1195
24e1003a
AJ		 1196static inline abi_long copy_from_user_mq_attr(struct mq_attr *attr,
1197 abi_ulong target_mq_attr_addr)
1198{
1199 struct target_mq_attr *target_mq_attr;
1200
1201 if (!lock_user_struct(VERIFY_READ, target_mq_attr,
1202 target_mq_attr_addr, 1))
1203 return -TARGET_EFAULT;
1204
1205 __get_user(attr->mq_flags, &target_mq_attr->mq_flags);
1206 __get_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
1207 __get_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
1208 __get_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
1209
1210 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 0);
1211
1212 return 0;
1213}
1214
1215static inline abi_long copy_to_user_mq_attr(abi_ulong target_mq_attr_addr,
1216 const struct mq_attr *attr)
1217{
1218 struct target_mq_attr *target_mq_attr;
1219
1220 if (!lock_user_struct(VERIFY_WRITE, target_mq_attr,
1221 target_mq_attr_addr, 0))
1222 return -TARGET_EFAULT;
1223
1224 __put_user(attr->mq_flags, &target_mq_attr->mq_flags);
1225 __put_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
1226 __put_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
1227 __put_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
1228
1229 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 1);
1230
1231 return 0;
1232}
8ec9cf89 1233#endif
31e31b8a 1234
055e0906 1235#if defined(TARGET_NR_select) || defined(TARGET_NR__newselect)
0da46a6e 1236/* do_select() must return target values and target errnos. */
992f48a0 1237static abi_long do_select(int n,
26edcf41
TS		 1238 abi_ulong rfd_addr, abi_ulong wfd_addr,
1239 abi_ulong efd_addr, abi_ulong target_tv_addr)
31e31b8a
FB		 1240{
1241 fd_set rfds, wfds, efds;
1242 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
6df9d38d
PM		 1243 struct timeval tv;
1244 struct timespec ts, *ts_ptr;
992f48a0 1245 abi_long ret;
31e31b8a 1246
055e0906
MF		 1247 ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n);
1248 if (ret) {
1249 return ret;
53a5960a 1250 }
055e0906
MF		 1251 ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n);
1252 if (ret) {
1253 return ret;
53a5960a 1254 }
055e0906
MF		 1255 ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n);
1256 if (ret) {
1257 return ret;
53a5960a 1258 }
3b46e624 1259
26edcf41 1260 if (target_tv_addr) {
788f5ec4
TS		 1261 if (copy_from_user_timeval(&tv, target_tv_addr))
1262 return -TARGET_EFAULT;
6df9d38d
PM		 1263 ts.tv_sec = tv.tv_sec;
1264 ts.tv_nsec = tv.tv_usec * 1000;
1265 ts_ptr = &ts;
31e31b8a 1266 } else {
6df9d38d 1267 ts_ptr = NULL;
31e31b8a 1268 }
26edcf41 1269
6df9d38d
PM		 1270 ret = get_errno(safe_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr,
1271 ts_ptr, NULL));
53a5960a 1272
26edcf41
TS		 1273 if (!is_error(ret)) {
1274 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
1275 return -TARGET_EFAULT;
1276 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
1277 return -TARGET_EFAULT;
1278 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
1279 return -TARGET_EFAULT;
31e31b8a 1280
6df9d38d
PM		 1281 if (target_tv_addr) {
1282 tv.tv_sec = ts.tv_sec;
1283 tv.tv_usec = ts.tv_nsec / 1000;
1284 if (copy_to_user_timeval(target_tv_addr, &tv)) {
1285 return -TARGET_EFAULT;
1286 }
1287 }
31e31b8a 1288 }
579a97f7 1289
31e31b8a
FB		 1290 return ret;
1291}
5457dc9e
LV		 1292
1293#if defined(TARGET_WANT_OLD_SYS_SELECT)
1294static abi_long do_old_select(abi_ulong arg1)
1295{
1296 struct target_sel_arg_struct *sel;
1297 abi_ulong inp, outp, exp, tvp;
1298 long nsel;
1299
1300 if (!lock_user_struct(VERIFY_READ, sel, arg1, 1)) {
1301 return -TARGET_EFAULT;
1302 }
1303
1304 nsel = tswapal(sel->n);
1305 inp = tswapal(sel->inp);
1306 outp = tswapal(sel->outp);
1307 exp = tswapal(sel->exp);
1308 tvp = tswapal(sel->tvp);
1309
1310 unlock_user_struct(sel, arg1, 0);
1311
1312 return do_select(nsel, inp, outp, exp, tvp);
1313}
1314#endif
055e0906 1315#endif
31e31b8a 1316
099d6b0f
RV		 1317static abi_long do_pipe2(int host_pipe[], int flags)
1318{
1319#ifdef CONFIG_PIPE2
1320 return pipe2(host_pipe, flags);
1321#else
1322 return -ENOSYS;
1323#endif
1324}
1325
fb41a66e
RH		 1326static abi_long do_pipe(void *cpu_env, abi_ulong pipedes,
1327 int flags, int is_pipe2)
099d6b0f
RV		 1328{
1329 int host_pipe[2];
1330 abi_long ret;
1331 ret = flags ? do_pipe2(host_pipe, flags) : pipe(host_pipe);
1332
1333 if (is_error(ret))
1334 return get_errno(ret);
fb41a66e
RH		 1335
1336 /* Several targets have special calling conventions for the original
1337 pipe syscall, but didn't replicate this into the pipe2 syscall. */
1338 if (!is_pipe2) {
1339#if defined(TARGET_ALPHA)
1340 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = host_pipe[1];
1341 return host_pipe[0];
1342#elif defined(TARGET_MIPS)
1343 ((CPUMIPSState*)cpu_env)->active_tc.gpr[3] = host_pipe[1];
1344 return host_pipe[0];
1345#elif defined(TARGET_SH4)
597c0212 1346 ((CPUSH4State*)cpu_env)->gregs[1] = host_pipe[1];
fb41a66e 1347 return host_pipe[0];
82f05b69
PM		 1348#elif defined(TARGET_SPARC)
1349 ((CPUSPARCState*)cpu_env)->regwptr[1] = host_pipe[1];
1350 return host_pipe[0];
597c0212 1351#endif
fb41a66e
RH		 1352 }
1353
099d6b0f
RV		 1354 if (put_user_s32(host_pipe[0], pipedes)
1355 || put_user_s32(host_pipe[1], pipedes + sizeof(host_pipe[0])))
1356 return -TARGET_EFAULT;
099d6b0f
RV		 1357 return get_errno(ret);
1358}
1359
b975b83b
LL		 1360static inline abi_long target_to_host_ip_mreq(struct ip_mreqn *mreqn,
1361 abi_ulong target_addr,
1362 socklen_t len)
1363{
1364 struct target_ip_mreqn *target_smreqn;
1365
1366 target_smreqn = lock_user(VERIFY_READ, target_addr, len, 1);
1367 if (!target_smreqn)
1368 return -TARGET_EFAULT;
1369 mreqn->imr_multiaddr.s_addr = target_smreqn->imr_multiaddr.s_addr;
1370 mreqn->imr_address.s_addr = target_smreqn->imr_address.s_addr;
1371 if (len == sizeof(struct target_ip_mreqn))
cbb21eed 1372 mreqn->imr_ifindex = tswapal(target_smreqn->imr_ifindex);
b975b83b
LL		 1373 unlock_user(target_smreqn, target_addr, 0);
1374
1375 return 0;
1376}
1377
7b36f782 1378static inline abi_long target_to_host_sockaddr(int fd, struct sockaddr *addr,
579a97f7
FB		 1379 abi_ulong target_addr,
1380 socklen_t len)
7854b056 1381{
607175e0
AJ		 1382 const socklen_t unix_maxlen = sizeof (struct sockaddr_un);
1383 sa_family_t sa_family;
53a5960a
PB		 1384 struct target_sockaddr *target_saddr;
1385
7b36f782
LV		 1386 if (fd_trans_target_to_host_addr(fd)) {
1387 return fd_trans_target_to_host_addr(fd)(addr, target_addr, len);
1388 }
1389
579a97f7
FB		 1390 target_saddr = lock_user(VERIFY_READ, target_addr, len, 1);
1391 if (!target_saddr)
1392 return -TARGET_EFAULT;
607175e0
AJ		 1393
1394 sa_family = tswap16(target_saddr->sa_family);
1395
1396 /* Oops. The caller might send a incomplete sun_path; sun_path
1397 * must be terminated by \0 (see the manual page), but
1398 * unfortunately it is quite common to specify sockaddr_un
1399 * length as "strlen(x->sun_path)" while it should be
1400 * "strlen(...) + 1". We'll fix that here if needed.
1401 * Linux kernel has a similar feature.
1402 */
1403
1404 if (sa_family == AF_UNIX) {
1405 if (len < unix_maxlen && len > 0) {
1406 char *cp = (char*)target_saddr;
1407
1408 if ( cp[len-1] && !cp[len] )
1409 len++;
1410 }
1411 if (len > unix_maxlen)
1412 len = unix_maxlen;
1413 }
1414
53a5960a 1415 memcpy(addr, target_saddr, len);
607175e0 1416 addr->sa_family = sa_family;
6c5b5645
LV		 1417 if (sa_family == AF_NETLINK) {
1418 struct sockaddr_nl *nladdr;
1419
1420 nladdr = (struct sockaddr_nl *)addr;
1421 nladdr->nl_pid = tswap32(nladdr->nl_pid);
1422 nladdr->nl_groups = tswap32(nladdr->nl_groups);
1423 } else if (sa_family == AF_PACKET) {
33a29b51
JT		 1424 struct target_sockaddr_ll *lladdr;
1425
1426 lladdr = (struct target_sockaddr_ll *)addr;
1427 lladdr->sll_ifindex = tswap32(lladdr->sll_ifindex);
1428 lladdr->sll_hatype = tswap16(lladdr->sll_hatype);
1429 }
53a5960a 1430 unlock_user(target_saddr, target_addr, 0);
579a97f7
FB		 1431
1432 return 0;
7854b056
FB		 1433}
1434
579a97f7
FB		 1435static inline abi_long host_to_target_sockaddr(abi_ulong target_addr,
1436 struct sockaddr *addr,
1437 socklen_t len)
7854b056 1438{
53a5960a
PB		 1439 struct target_sockaddr *target_saddr;
1440
a1e22192
PM		 1441 if (len == 0) {
1442 return 0;
1443 }
6860710c 1444 assert(addr);
a1e22192 1445
579a97f7
FB		 1446 target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0);
1447 if (!target_saddr)
1448 return -TARGET_EFAULT;
53a5960a 1449 memcpy(target_saddr, addr, len);
a1e22192
PM		 1450 if (len >= offsetof(struct target_sockaddr, sa_family) +
1451 sizeof(target_saddr->sa_family)) {
1452 target_saddr->sa_family = tswap16(addr->sa_family);
1453 }
1454 if (addr->sa_family == AF_NETLINK && len >= sizeof(struct sockaddr_nl)) {
6c5b5645
LV		 1455 struct sockaddr_nl *target_nl = (struct sockaddr_nl *)target_saddr;
1456 target_nl->nl_pid = tswap32(target_nl->nl_pid);
1457 target_nl->nl_groups = tswap32(target_nl->nl_groups);
a82ea939
LV		 1458 } else if (addr->sa_family == AF_PACKET) {
1459 struct sockaddr_ll *target_ll = (struct sockaddr_ll *)target_saddr;
1460 target_ll->sll_ifindex = tswap32(target_ll->sll_ifindex);
1461 target_ll->sll_hatype = tswap16(target_ll->sll_hatype);
ee1ac3a1
HD		 1462 } else if (addr->sa_family == AF_INET6 &&
1463 len >= sizeof(struct target_sockaddr_in6)) {
1464 struct target_sockaddr_in6 *target_in6 =
1465 (struct target_sockaddr_in6 *)target_saddr;
1466 target_in6->sin6_scope_id = tswap16(target_in6->sin6_scope_id);
6c5b5645 1467 }
53a5960a 1468 unlock_user(target_saddr, target_addr, len);
579a97f7
FB		 1469
1470 return 0;
7854b056
FB		 1471}
1472
5a4a898d
FB		 1473static inline abi_long target_to_host_cmsg(struct msghdr *msgh,
1474 struct target_msghdr *target_msgh)
7854b056
FB		 1475{
1476 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
5a4a898d
FB		 1477 abi_long msg_controllen;
1478 abi_ulong target_cmsg_addr;
ee104587 1479 struct target_cmsghdr *target_cmsg, *target_cmsg_start;
7854b056 1480 socklen_t space = 0;
5a4a898d 1481
cbb21eed 1482 msg_controllen = tswapal(target_msgh->msg_controllen);
5a4a898d
FB		 1483 if (msg_controllen < sizeof (struct target_cmsghdr))
1484 goto the_end;
cbb21eed 1485 target_cmsg_addr = tswapal(target_msgh->msg_control);
5a4a898d 1486 target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1);
ee104587 1487 target_cmsg_start = target_cmsg;
5a4a898d
FB		 1488 if (!target_cmsg)
1489 return -TARGET_EFAULT;
7854b056
FB		 1490
1491 while (cmsg && target_cmsg) {
1492 void *data = CMSG_DATA(cmsg);
1493 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1494
cbb21eed 1495 int len = tswapal(target_cmsg->cmsg_len)
ad762b99 1496 - sizeof(struct target_cmsghdr);
7854b056
FB		 1497
1498 space += CMSG_SPACE(len);
1499 if (space > msgh->msg_controllen) {
1500 space -= CMSG_SPACE(len);
c2aeb258
PM		 1501 /* This is a QEMU bug, since we allocated the payload
1502 * area ourselves (unlike overflow in host-to-target
1503 * conversion, which is just the guest giving us a buffer
1504 * that's too small). It can't happen for the payload types
1505 * we currently support; if it becomes an issue in future
1506 * we would need to improve our allocation strategy to
1507 * something more intelligent than "twice the size of the
1508 * target buffer we're reading from".
1509 */
31febb71 1510 gemu_log("Host cmsg overflow\n");
7854b056
FB		 1511 break;
1512 }
1513
dbf4f796
PJ		 1514 if (tswap32(target_cmsg->cmsg_level) == TARGET_SOL_SOCKET) {
1515 cmsg->cmsg_level = SOL_SOCKET;
1516 } else {
1517 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
1518 }
7854b056
FB		 1519 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
1520 cmsg->cmsg_len = CMSG_LEN(len);
1521
30b8b68e 1522 if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS) {
7854b056
FB		 1523 int *fd = (int *)data;
1524 int *target_fd = (int *)target_data;
1525 int i, numfds = len / sizeof(int);
1526
876e23cb
PM		 1527 for (i = 0; i < numfds; i++) {
1528 __get_user(fd[i], target_fd + i);
1529 }
30b8b68e
AS		 1530 } else if (cmsg->cmsg_level == SOL_SOCKET
1531 && cmsg->cmsg_type == SCM_CREDENTIALS) {
1532 struct ucred *cred = (struct ucred *)data;
1533 struct target_ucred *target_cred =
1534 (struct target_ucred *)target_data;
1535
876e23cb
PM		 1536 __get_user(cred->pid, &target_cred->pid);
1537 __get_user(cred->uid, &target_cred->uid);
1538 __get_user(cred->gid, &target_cred->gid);
30b8b68e
AS		 1539 } else {
1540 gemu_log("Unsupported ancillary data: %d/%d\n",
1541 cmsg->cmsg_level, cmsg->cmsg_type);
1542 memcpy(data, target_data, len);
7854b056
FB		 1543 }
1544
1545 cmsg = CMSG_NXTHDR(msgh, cmsg);
ee104587
JN		 1546 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg,
1547 target_cmsg_start);
7854b056 1548 }
5a4a898d
FB		 1549 unlock_user(target_cmsg, target_cmsg_addr, 0);
1550 the_end:
7854b056 1551 msgh->msg_controllen = space;
5a4a898d 1552 return 0;
7854b056
FB		 1553}
1554
5a4a898d
FB		 1555static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh,
1556 struct msghdr *msgh)
7854b056
FB		 1557{
1558 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
5a4a898d
FB		 1559 abi_long msg_controllen;
1560 abi_ulong target_cmsg_addr;
ee104587 1561 struct target_cmsghdr *target_cmsg, *target_cmsg_start;
7854b056
FB		 1562 socklen_t space = 0;
1563
cbb21eed 1564 msg_controllen = tswapal(target_msgh->msg_controllen);
5a4a898d
FB		 1565 if (msg_controllen < sizeof (struct target_cmsghdr))
1566 goto the_end;
cbb21eed 1567 target_cmsg_addr = tswapal(target_msgh->msg_control);
5a4a898d 1568 target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0);
ee104587 1569 target_cmsg_start = target_cmsg;
5a4a898d
FB		 1570 if (!target_cmsg)
1571 return -TARGET_EFAULT;
1572
7854b056
FB		 1573 while (cmsg && target_cmsg) {
1574 void *data = CMSG_DATA(cmsg);
1575 void *target_data = TARGET_CMSG_DATA(target_cmsg);
1576
ad762b99 1577 int len = cmsg->cmsg_len - sizeof(struct cmsghdr);
c2aeb258 1578 int tgt_len, tgt_space;
7854b056 1579
c2aeb258
PM		 1580 /* We never copy a half-header but may copy half-data;
1581 * this is Linux's behaviour in put_cmsg(). Note that
1582 * truncation here is a guest problem (which we report
1583 * to the guest via the CTRUNC bit), unlike truncation
1584 * in target_to_host_cmsg, which is a QEMU bug.
1585 */
7174970a 1586 if (msg_controllen < sizeof(struct target_cmsghdr)) {
c2aeb258 1587 target_msgh->msg_flags |= tswap32(MSG_CTRUNC);
7854b056
FB		 1588 break;
1589 }
1590
dbf4f796
PJ		 1591 if (cmsg->cmsg_level == SOL_SOCKET) {
1592 target_cmsg->cmsg_level = tswap32(TARGET_SOL_SOCKET);
1593 } else {
1594 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
1595 }
7854b056 1596 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
7854b056 1597
c2aeb258
PM		 1598 /* Payload types which need a different size of payload on
1599 * the target must adjust tgt_len here.
1600 */
309786cf 1601 tgt_len = len;
c2aeb258
PM		 1602 switch (cmsg->cmsg_level) {
1603 case SOL_SOCKET:
1604 switch (cmsg->cmsg_type) {
1605 case SO_TIMESTAMP:
1606 tgt_len = sizeof(struct target_timeval);
1607 break;
1608 default:
1609 break;
1610 }
309786cf 1611 break;
c2aeb258
PM		 1612 default:
1613 break;
1614 }
1615
7174970a 1616 if (msg_controllen < TARGET_CMSG_LEN(tgt_len)) {
c2aeb258 1617 target_msgh->msg_flags |= tswap32(MSG_CTRUNC);
7174970a 1618 tgt_len = msg_controllen - sizeof(struct target_cmsghdr);
c2aeb258
PM		 1619 }
1620
1621 /* We must now copy-and-convert len bytes of payload
1622 * into tgt_len bytes of destination space. Bear in mind
1623 * that in both source and destination we may be dealing
1624 * with a truncated value!
1625 */
52b65494
HD		 1626 switch (cmsg->cmsg_level) {
1627 case SOL_SOCKET:
1628 switch (cmsg->cmsg_type) {
1629 case SCM_RIGHTS:
1630 {
1631 int *fd = (int *)data;
1632 int *target_fd = (int *)target_data;
c2aeb258 1633 int i, numfds = tgt_len / sizeof(int);
52b65494 1634
876e23cb
PM		 1635 for (i = 0; i < numfds; i++) {
1636 __put_user(fd[i], target_fd + i);
1637 }
52b65494
HD		 1638 break;
1639 }
1640 case SO_TIMESTAMP:
1641 {
1642 struct timeval *tv = (struct timeval *)data;
1643 struct target_timeval *target_tv =
1644 (struct target_timeval *)target_data;
1645
c2aeb258
PM		 1646 if (len != sizeof(struct timeval) ||
1647 tgt_len != sizeof(struct target_timeval)) {
52b65494 1648 goto unimplemented;
c2aeb258 1649 }
52b65494
HD		 1650
1651 /* copy struct timeval to target */
876e23cb
PM		 1652 __put_user(tv->tv_sec, &target_tv->tv_sec);
1653 __put_user(tv->tv_usec, &target_tv->tv_usec);
52b65494
HD		 1654 break;
1655 }
4bc29756
HD		 1656 case SCM_CREDENTIALS:
1657 {
1658 struct ucred *cred = (struct ucred *)data;
1659 struct target_ucred *target_cred =
1660 (struct target_ucred *)target_data;
1661
1662 __put_user(cred->pid, &target_cred->pid);
1663 __put_user(cred->uid, &target_cred->uid);
1664 __put_user(cred->gid, &target_cred->gid);
1665 break;
1666 }
52b65494
HD		 1667 default:
1668 goto unimplemented;
1669 }
1670 break;
7854b056 1671
ee1ac3a1
HD		 1672 case SOL_IP:
1673 switch (cmsg->cmsg_type) {
1674 case IP_TTL:
1675 {
1676 uint32_t *v = (uint32_t *)data;
1677 uint32_t *t_int = (uint32_t *)target_data;
1678
7174970a
PM		 1679 if (len != sizeof(uint32_t) ||
1680 tgt_len != sizeof(uint32_t)) {
1681 goto unimplemented;
1682 }
ee1ac3a1
HD		 1683 __put_user(*v, t_int);
1684 break;
1685 }
1686 case IP_RECVERR:
1687 {
1688 struct errhdr_t {
1689 struct sock_extended_err ee;
1690 struct sockaddr_in offender;
1691 };
1692 struct errhdr_t *errh = (struct errhdr_t *)data;
1693 struct errhdr_t *target_errh =
1694 (struct errhdr_t *)target_data;
1695
7174970a
PM		 1696 if (len != sizeof(struct errhdr_t) ||
1697 tgt_len != sizeof(struct errhdr_t)) {
1698 goto unimplemented;
1699 }
ee1ac3a1
HD		 1700 __put_user(errh->ee.ee_errno, &target_errh->ee.ee_errno);
1701 __put_user(errh->ee.ee_origin, &target_errh->ee.ee_origin);
1702 __put_user(errh->ee.ee_type, &target_errh->ee.ee_type);
1703 __put_user(errh->ee.ee_code, &target_errh->ee.ee_code);
1704 __put_user(errh->ee.ee_pad, &target_errh->ee.ee_pad);
1705 __put_user(errh->ee.ee_info, &target_errh->ee.ee_info);
1706 __put_user(errh->ee.ee_data, &target_errh->ee.ee_data);
1707 host_to_target_sockaddr((unsigned long) &target_errh->offender,
1708 (void *) &errh->offender, sizeof(errh->offender));
1709 break;
1710 }
1711 default:
1712 goto unimplemented;
1713 }
1714 break;
1715
1716 case SOL_IPV6:
1717 switch (cmsg->cmsg_type) {
1718 case IPV6_HOPLIMIT:
1719 {
1720 uint32_t *v = (uint32_t *)data;
1721 uint32_t *t_int = (uint32_t *)target_data;
1722
7174970a
PM		 1723 if (len != sizeof(uint32_t) ||
1724 tgt_len != sizeof(uint32_t)) {
1725 goto unimplemented;
1726 }
ee1ac3a1
HD		 1727 __put_user(*v, t_int);
1728 break;
1729 }
1730 case IPV6_RECVERR:
1731 {
1732 struct errhdr6_t {
1733 struct sock_extended_err ee;
1734 struct sockaddr_in6 offender;
1735 };
1736 struct errhdr6_t *errh = (struct errhdr6_t *)data;
1737 struct errhdr6_t *target_errh =
1738 (struct errhdr6_t *)target_data;
1739
7174970a
PM		 1740 if (len != sizeof(struct errhdr6_t) ||
1741 tgt_len != sizeof(struct errhdr6_t)) {
1742 goto unimplemented;
1743 }
ee1ac3a1
HD		 1744 __put_user(errh->ee.ee_errno, &target_errh->ee.ee_errno);
1745 __put_user(errh->ee.ee_origin, &target_errh->ee.ee_origin);
1746 __put_user(errh->ee.ee_type, &target_errh->ee.ee_type);
1747 __put_user(errh->ee.ee_code, &target_errh->ee.ee_code);
1748 __put_user(errh->ee.ee_pad, &target_errh->ee.ee_pad);
1749 __put_user(errh->ee.ee_info, &target_errh->ee.ee_info);
1750 __put_user(errh->ee.ee_data, &target_errh->ee.ee_data);
1751 host_to_target_sockaddr((unsigned long) &target_errh->offender,
1752 (void *) &errh->offender, sizeof(errh->offender));
1753 break;
1754 }
1755 default:
1756 goto unimplemented;
1757 }
1758 break;
1759
52b65494
HD		 1760 default:
1761 unimplemented:
aebf5bc7
JH		 1762 gemu_log("Unsupported ancillary data: %d/%d\n",
1763 cmsg->cmsg_level, cmsg->cmsg_type);
c2aeb258
PM		 1764 memcpy(target_data, data, MIN(len, tgt_len));
1765 if (tgt_len > len) {
1766 memset(target_data + len, 0, tgt_len - len);
1767 }
7854b056
FB		 1768 }
1769
7174970a
PM		 1770 target_cmsg->cmsg_len = tswapal(TARGET_CMSG_LEN(tgt_len));
1771 tgt_space = TARGET_CMSG_SPACE(tgt_len);
c2aeb258
PM		 1772 if (msg_controllen < tgt_space) {
1773 tgt_space = msg_controllen;
1774 }
1775 msg_controllen -= tgt_space;
1776 space += tgt_space;
7854b056 1777 cmsg = CMSG_NXTHDR(msgh, cmsg);
ee104587
JN		 1778 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg,
1779 target_cmsg_start);
7854b056 1780 }
5a4a898d
FB		 1781 unlock_user(target_cmsg, target_cmsg_addr, space);
1782 the_end:
cbb21eed 1783 target_msgh->msg_controllen = tswapal(space);
5a4a898d 1784 return 0;
7854b056
FB		 1785}
1786
0da46a6e 1787/* do_setsockopt() Must return target values and target errnos. */
992f48a0 1788static abi_long do_setsockopt(int sockfd, int level, int optname,
2f619698 1789 abi_ulong optval_addr, socklen_t optlen)
7854b056 1790{
992f48a0 1791 abi_long ret;
32407103 1792 int val;
b975b83b 1793 struct ip_mreqn *ip_mreq;
6e3cb58f 1794 struct ip_mreq_source *ip_mreq_source;
3b46e624 1795
8853f86e
FB		 1796 switch(level) {
1797 case SOL_TCP:
7854b056 1798 /* TCP options all take an 'int' value. */
7854b056 1799 if (optlen < sizeof(uint32_t))
0da46a6e 1800 return -TARGET_EINVAL;
3b46e624 1801
2f619698
FB		 1802 if (get_user_u32(val, optval_addr))
1803 return -TARGET_EFAULT;
8853f86e
FB		 1804 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
1805 break;
1806 case SOL_IP:
1807 switch(optname) {
2efbe911
FB		 1808 case IP_TOS:
1809 case IP_TTL:
8853f86e 1810 case IP_HDRINCL:
2efbe911
FB		 1811 case IP_ROUTER_ALERT:
1812 case IP_RECVOPTS:
1813 case IP_RETOPTS:
1814 case IP_PKTINFO:
1815 case IP_MTU_DISCOVER:
1816 case IP_RECVERR:
ee1ac3a1 1817 case IP_RECVTTL:
2efbe911
FB		 1818 case IP_RECVTOS:
1819#ifdef IP_FREEBIND
1820 case IP_FREEBIND:
1821#endif
1822 case IP_MULTICAST_TTL:
1823 case IP_MULTICAST_LOOP:
8853f86e
FB		 1824 val = 0;
1825 if (optlen >= sizeof(uint32_t)) {
2f619698
FB		 1826 if (get_user_u32(val, optval_addr))
1827 return -TARGET_EFAULT;
8853f86e 1828 } else if (optlen >= 1) {
2f619698
FB		 1829 if (get_user_u8(val, optval_addr))
1830 return -TARGET_EFAULT;
8853f86e
FB		 1831 }
1832 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
1833 break;
b975b83b
LL		 1834 case IP_ADD_MEMBERSHIP:
1835 case IP_DROP_MEMBERSHIP:
1836 if (optlen < sizeof (struct target_ip_mreq) ||
1837 optlen > sizeof (struct target_ip_mreqn))
1838 return -TARGET_EINVAL;
1839
1840 ip_mreq = (struct ip_mreqn *) alloca(optlen);
1841 target_to_host_ip_mreq(ip_mreq, optval_addr, optlen);
1842 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq, optlen));
1843 break;
1844
6e3cb58f
LL		 1845 case IP_BLOCK_SOURCE:
1846 case IP_UNBLOCK_SOURCE:
1847 case IP_ADD_SOURCE_MEMBERSHIP:
1848 case IP_DROP_SOURCE_MEMBERSHIP:
1849 if (optlen != sizeof (struct target_ip_mreq_source))
1850 return -TARGET_EINVAL;
1851
1852 ip_mreq_source = lock_user(VERIFY_READ, optval_addr, optlen, 1);
1853 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq_source, optlen));
1854 unlock_user (ip_mreq_source, optval_addr, 0);
1855 break;
1856
920394db
JH		 1857 default:
1858 goto unimplemented;
1859 }
1860 break;
0d78b3b5
LV		 1861 case SOL_IPV6:
1862 switch (optname) {
1863 case IPV6_MTU_DISCOVER:
1864 case IPV6_MTU:
1865 case IPV6_V6ONLY:
1866 case IPV6_RECVPKTINFO:
ee1ac3a1 1867 case IPV6_UNICAST_HOPS:
21749c4c
LV		 1868 case IPV6_MULTICAST_HOPS:
1869 case IPV6_MULTICAST_LOOP:
ee1ac3a1
HD		 1870 case IPV6_RECVERR:
1871 case IPV6_RECVHOPLIMIT:
1872 case IPV6_2292HOPLIMIT:
1873 case IPV6_CHECKSUM:
0d78b3b5
LV		 1874 val = 0;
1875 if (optlen < sizeof(uint32_t)) {
1876 return -TARGET_EINVAL;
1877 }
1878 if (get_user_u32(val, optval_addr)) {
1879 return -TARGET_EFAULT;
1880 }
1881 ret = get_errno(setsockopt(sockfd, level, optname,
1882 &val, sizeof(val)));
1883 break;
ee1ac3a1
HD		 1884 case IPV6_PKTINFO:
1885 {
1886 struct in6_pktinfo pki;
1887
1888 if (optlen < sizeof(pki)) {
1889 return -TARGET_EINVAL;
1890 }
1891
1892 if (copy_from_user(&pki, optval_addr, sizeof(pki))) {
1893 return -TARGET_EFAULT;
1894 }
1895
1896 pki.ipi6_ifindex = tswap32(pki.ipi6_ifindex);
1897
1898 ret = get_errno(setsockopt(sockfd, level, optname,
1899 &pki, sizeof(pki)));
1900 break;
1901 }
1902 default:
1903 goto unimplemented;
1904 }
1905 break;
1906 case SOL_ICMPV6:
1907 switch (optname) {
1908 case ICMPV6_FILTER:
1909 {
1910 struct icmp6_filter icmp6f;
1911
1912 if (optlen > sizeof(icmp6f)) {
1913 optlen = sizeof(icmp6f);
1914 }
1915
1916 if (copy_from_user(&icmp6f, optval_addr, optlen)) {
1917 return -TARGET_EFAULT;
1918 }
1919
1920 for (val = 0; val < 8; val++) {
1921 icmp6f.data[val] = tswap32(icmp6f.data[val]);
1922 }
1923
1924 ret = get_errno(setsockopt(sockfd, level, optname,
1925 &icmp6f, optlen));
1926 break;
1927 }
0d78b3b5
LV		 1928 default:
1929 goto unimplemented;
1930 }
1931 break;
920394db
JH		 1932 case SOL_RAW:
1933 switch (optname) {
1934 case ICMP_FILTER:
ee1ac3a1
HD		 1935 case IPV6_CHECKSUM:
1936 /* those take an u32 value */
920394db
JH		 1937 if (optlen < sizeof(uint32_t)) {
1938 return -TARGET_EINVAL;
1939 }
1940
1941 if (get_user_u32(val, optval_addr)) {
1942 return -TARGET_EFAULT;
1943 }
1944 ret = get_errno(setsockopt(sockfd, level, optname,
1945 &val, sizeof(val)));
1946 break;
1947
8853f86e
FB		 1948 default:
1949 goto unimplemented;
1950 }
1951 break;
3532fa74 1952 case TARGET_SOL_SOCKET:
8853f86e 1953 switch (optname) {
1b09aeb9
LV		 1954 case TARGET_SO_RCVTIMEO:
1955 {
1956 struct timeval tv;
1957
1958 optname = SO_RCVTIMEO;
1959
1960set_timeout:
1961 if (optlen != sizeof(struct target_timeval)) {
1962 return -TARGET_EINVAL;
1963 }
1964
1965 if (copy_from_user_timeval(&tv, optval_addr)) {
1966 return -TARGET_EFAULT;
1967 }
1968
1969 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname,
1970 &tv, sizeof(tv)));
1971 return ret;
1972 }
1973 case TARGET_SO_SNDTIMEO:
1974 optname = SO_SNDTIMEO;
1975 goto set_timeout;
f57d4192
LV		 1976 case TARGET_SO_ATTACH_FILTER:
1977 {
1978 struct target_sock_fprog *tfprog;
1979 struct target_sock_filter *tfilter;
1980 struct sock_fprog fprog;
1981 struct sock_filter *filter;
1982 int i;
1983
1984 if (optlen != sizeof(*tfprog)) {
1985 return -TARGET_EINVAL;
1986 }
1987 if (!lock_user_struct(VERIFY_READ, tfprog, optval_addr, 0)) {
1988 return -TARGET_EFAULT;
1989 }
1990 if (!lock_user_struct(VERIFY_READ, tfilter,
1991 tswapal(tfprog->filter), 0)) {
1992 unlock_user_struct(tfprog, optval_addr, 1);
1993 return -TARGET_EFAULT;
1994 }
1995
1996 fprog.len = tswap16(tfprog->len);
0e173b24 1997 filter = g_try_new(struct sock_filter, fprog.len);
f57d4192
LV		 1998 if (filter == NULL) {
1999 unlock_user_struct(tfilter, tfprog->filter, 1);
2000 unlock_user_struct(tfprog, optval_addr, 1);
2001 return -TARGET_ENOMEM;
2002 }
2003 for (i = 0; i < fprog.len; i++) {
2004 filter[i].code = tswap16(tfilter[i].code);
2005 filter[i].jt = tfilter[i].jt;
2006 filter[i].jf = tfilter[i].jf;
2007 filter[i].k = tswap32(tfilter[i].k);
2008 }
2009 fprog.filter = filter;
2010
2011 ret = get_errno(setsockopt(sockfd, SOL_SOCKET,
2012 SO_ATTACH_FILTER, &fprog, sizeof(fprog)));
0e173b24 2013 g_free(filter);
f57d4192
LV		 2014
2015 unlock_user_struct(tfilter, tfprog->filter, 1);
2016 unlock_user_struct(tfprog, optval_addr, 1);
2017 return ret;
2018 }
451aaf68
JT		 2019 case TARGET_SO_BINDTODEVICE:
2020 {
2021 char *dev_ifname, *addr_ifname;
2022
2023 if (optlen > IFNAMSIZ - 1) {
2024 optlen = IFNAMSIZ - 1;
2025 }
2026 dev_ifname = lock_user(VERIFY_READ, optval_addr, optlen, 1);
2027 if (!dev_ifname) {
2028 return -TARGET_EFAULT;
2029 }
2030 optname = SO_BINDTODEVICE;
2031 addr_ifname = alloca(IFNAMSIZ);
2032 memcpy(addr_ifname, dev_ifname, optlen);
2033 addr_ifname[optlen] = 0;
fad6c58a
CG		 2034 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname,
2035 addr_ifname, optlen));
451aaf68
JT		 2036 unlock_user (dev_ifname, optval_addr, 0);
2037 return ret;
2038 }
83eb6e50
CMAB		 2039 case TARGET_SO_LINGER:
2040 {
2041 struct linger lg;
2042 struct target_linger *tlg;
2043
2044 if (optlen != sizeof(struct target_linger)) {
2045 return -TARGET_EINVAL;
2046 }
2047 if (!lock_user_struct(VERIFY_READ, tlg, optval_addr, 1)) {
2048 return -TARGET_EFAULT;
2049 }
2050 __get_user(lg.l_onoff, &tlg->l_onoff);
2051 __get_user(lg.l_linger, &tlg->l_linger);
2052 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, SO_LINGER,
2053 &lg, sizeof(lg)));
2054 unlock_user_struct(tlg, optval_addr, 0);
2055 return ret;
2056 }
8853f86e 2057 /* Options with 'int' argument. */
3532fa74
FB		 2058 case TARGET_SO_DEBUG:
2059 optname = SO_DEBUG;
2060 break;
2061 case TARGET_SO_REUSEADDR:
2062 optname = SO_REUSEADDR;
2063 break;
113a9dd7
YS		 2064#ifdef SO_REUSEPORT
2065 case TARGET_SO_REUSEPORT:
2066 optname = SO_REUSEPORT;
2067 break;
2068#endif
3532fa74
FB		 2069 case TARGET_SO_TYPE:
2070 optname = SO_TYPE;
2071 break;
2072 case TARGET_SO_ERROR:
2073 optname = SO_ERROR;
2074 break;
2075 case TARGET_SO_DONTROUTE:
2076 optname = SO_DONTROUTE;
2077 break;
2078 case TARGET_SO_BROADCAST:
2079 optname = SO_BROADCAST;
2080 break;
2081 case TARGET_SO_SNDBUF:
2082 optname = SO_SNDBUF;
2083 break;
d79b6cc4
PB		 2084 case TARGET_SO_SNDBUFFORCE:
2085 optname = SO_SNDBUFFORCE;
2086 break;
3532fa74
FB		 2087 case TARGET_SO_RCVBUF:
2088 optname = SO_RCVBUF;
2089 break;
d79b6cc4
PB		 2090 case TARGET_SO_RCVBUFFORCE:
2091 optname = SO_RCVBUFFORCE;
2092 break;
3532fa74
FB		 2093 case TARGET_SO_KEEPALIVE:
2094 optname = SO_KEEPALIVE;
2095 break;
2096 case TARGET_SO_OOBINLINE:
2097 optname = SO_OOBINLINE;
2098 break;
2099 case TARGET_SO_NO_CHECK:
2100 optname = SO_NO_CHECK;
2101 break;
2102 case TARGET_SO_PRIORITY:
2103 optname = SO_PRIORITY;
2104 break;
5e83e8e3 2105#ifdef SO_BSDCOMPAT
3532fa74
FB		 2106 case TARGET_SO_BSDCOMPAT:
2107 optname = SO_BSDCOMPAT;
2108 break;
5e83e8e3 2109#endif
3532fa74
FB		 2110 case TARGET_SO_PASSCRED:
2111 optname = SO_PASSCRED;
2112 break;
82d0fe6b
PB		 2113 case TARGET_SO_PASSSEC:
2114 optname = SO_PASSSEC;
2115 break;
3532fa74
FB		 2116 case TARGET_SO_TIMESTAMP:
2117 optname = SO_TIMESTAMP;
2118 break;
2119 case TARGET_SO_RCVLOWAT:
2120 optname = SO_RCVLOWAT;
2121 break;
8853f86e
FB		 2122 default:
2123 goto unimplemented;
2124 }
3532fa74 2125 if (optlen < sizeof(uint32_t))
2f619698 2126 return -TARGET_EINVAL;
3532fa74 2127
2f619698
FB		 2128 if (get_user_u32(val, optval_addr))
2129 return -TARGET_EFAULT;
3532fa74 2130 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
8853f86e 2131 break;
7854b056 2132 default:
8853f86e 2133 unimplemented:
b2bedb21 2134 gemu_log("Unsupported setsockopt level=%d optname=%d\n", level, optname);
6fa13c17 2135 ret = -TARGET_ENOPROTOOPT;
7854b056 2136 }
8853f86e 2137 return ret;
7854b056
FB		 2138}
2139
0da46a6e 2140/* do_getsockopt() Must return target values and target errnos. */
992f48a0 2141static abi_long do_getsockopt(int sockfd, int level, int optname,
2f619698 2142 abi_ulong optval_addr, abi_ulong optlen)
7854b056 2143{
992f48a0 2144 abi_long ret;
b55266b5
BS		 2145 int len, val;
2146 socklen_t lv;
8853f86e
FB		 2147
2148 switch(level) {
3532fa74 2149 case TARGET_SOL_SOCKET:
f3b974cd
JL		 2150 level = SOL_SOCKET;
2151 switch (optname) {
2152 /* These don't just return a single integer */
f3b974cd
JL		 2153 case TARGET_SO_RCVTIMEO:
2154 case TARGET_SO_SNDTIMEO:
f3b974cd
JL		 2155 case TARGET_SO_PEERNAME:
2156 goto unimplemented;
583359a6
AP		 2157 case TARGET_SO_PEERCRED: {
2158 struct ucred cr;
2159 socklen_t crlen;
2160 struct target_ucred *tcr;
2161
2162 if (get_user_u32(len, optlen)) {
2163 return -TARGET_EFAULT;
2164 }
2165 if (len < 0) {
2166 return -TARGET_EINVAL;
2167 }
2168
2169 crlen = sizeof(cr);
2170 ret = get_errno(getsockopt(sockfd, level, SO_PEERCRED,
2171 &cr, &crlen));
2172 if (ret < 0) {
2173 return ret;
2174 }
2175 if (len > crlen) {
2176 len = crlen;
2177 }
2178 if (!lock_user_struct(VERIFY_WRITE, tcr, optval_addr, 0)) {
2179 return -TARGET_EFAULT;
2180 }
2181 __put_user(cr.pid, &tcr->pid);
2182 __put_user(cr.uid, &tcr->uid);
2183 __put_user(cr.gid, &tcr->gid);
2184 unlock_user_struct(tcr, optval_addr, 1);
2185 if (put_user_u32(len, optlen)) {
83eb6e50
CMAB		 2186 return -TARGET_EFAULT;
2187 }
2188 break;
2189 }
2190 case TARGET_SO_LINGER:
2191 {
2192 struct linger lg;
2193 socklen_t lglen;
2194 struct target_linger *tlg;
2195
2196 if (get_user_u32(len, optlen)) {
2197 return -TARGET_EFAULT;
2198 }
2199 if (len < 0) {
2200 return -TARGET_EINVAL;
2201 }
2202
2203 lglen = sizeof(lg);
2204 ret = get_errno(getsockopt(sockfd, level, SO_LINGER,
2205 &lg, &lglen));
2206 if (ret < 0) {
2207 return ret;
2208 }
2209 if (len > lglen) {
2210 len = lglen;
2211 }
2212 if (!lock_user_struct(VERIFY_WRITE, tlg, optval_addr, 0)) {
2213 return -TARGET_EFAULT;
2214 }
2215 __put_user(lg.l_onoff, &tlg->l_onoff);
2216 __put_user(lg.l_linger, &tlg->l_linger);
2217 unlock_user_struct(tlg, optval_addr, 1);
2218 if (put_user_u32(len, optlen)) {
583359a6
AP		 2219 return -TARGET_EFAULT;
2220 }
2221 break;
2222 }
f3b974cd
JL		 2223 /* Options with 'int' argument. */
2224 case TARGET_SO_DEBUG:
2225 optname = SO_DEBUG;
2226 goto int_case;
2227 case TARGET_SO_REUSEADDR:
2228 optname = SO_REUSEADDR;
2229 goto int_case;
113a9dd7
YS		 2230#ifdef SO_REUSEPORT
2231 case TARGET_SO_REUSEPORT:
2232 optname = SO_REUSEPORT;
2233 goto int_case;
2234#endif
f3b974cd
JL		 2235 case TARGET_SO_TYPE:
2236 optname = SO_TYPE;
2237 goto int_case;
2238 case TARGET_SO_ERROR:
2239 optname = SO_ERROR;
2240 goto int_case;
2241 case TARGET_SO_DONTROUTE:
2242 optname = SO_DONTROUTE;
2243 goto int_case;
2244 case TARGET_SO_BROADCAST:
2245 optname = SO_BROADCAST;
2246 goto int_case;
2247 case TARGET_SO_SNDBUF:
2248 optname = SO_SNDBUF;
2249 goto int_case;
2250 case TARGET_SO_RCVBUF:
2251 optname = SO_RCVBUF;
2252 goto int_case;
2253 case TARGET_SO_KEEPALIVE:
2254 optname = SO_KEEPALIVE;
2255 goto int_case;
2256 case TARGET_SO_OOBINLINE:
2257 optname = SO_OOBINLINE;
2258 goto int_case;
2259 case TARGET_SO_NO_CHECK:
2260 optname = SO_NO_CHECK;
2261 goto int_case;
2262 case TARGET_SO_PRIORITY:
2263 optname = SO_PRIORITY;
2264 goto int_case;
2265#ifdef SO_BSDCOMPAT
2266 case TARGET_SO_BSDCOMPAT:
2267 optname = SO_BSDCOMPAT;
2268 goto int_case;
2269#endif
2270 case TARGET_SO_PASSCRED:
2271 optname = SO_PASSCRED;
2272 goto int_case;
2273 case TARGET_SO_TIMESTAMP:
2274 optname = SO_TIMESTAMP;
2275 goto int_case;
2276 case TARGET_SO_RCVLOWAT:
2277 optname = SO_RCVLOWAT;
2278 goto int_case;
aec1ca41
PB		 2279 case TARGET_SO_ACCEPTCONN:
2280 optname = SO_ACCEPTCONN;
2281 goto int_case;
8853f86e 2282 default:
2efbe911
FB		 2283 goto int_case;
2284 }
2285 break;
2286 case SOL_TCP:
2287 /* TCP options all take an 'int' value. */
2288 int_case:
2f619698
FB		 2289 if (get_user_u32(len, optlen))
2290 return -TARGET_EFAULT;
2efbe911 2291 if (len < 0)
0da46a6e 2292 return -TARGET_EINVAL;
73160d95 2293 lv = sizeof(lv);
2efbe911
FB		 2294 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
2295 if (ret < 0)
2296 return ret;
8289d112
PB		 2297 if (optname == SO_TYPE) {
2298 val = host_to_target_sock_type(val);
2299 }
2efbe911
FB		 2300 if (len > lv)
2301 len = lv;
2f619698
FB		 2302 if (len == 4) {
2303 if (put_user_u32(val, optval_addr))
2304 return -TARGET_EFAULT;
2305 } else {
2306 if (put_user_u8(val, optval_addr))
2307 return -TARGET_EFAULT;
f3b974cd 2308 }
2f619698
FB		 2309 if (put_user_u32(len, optlen))
2310 return -TARGET_EFAULT;
2efbe911
FB		 2311 break;
2312 case SOL_IP:
2313 switch(optname) {
2314 case IP_TOS:
2315 case IP_TTL:
2316 case IP_HDRINCL:
2317 case IP_ROUTER_ALERT:
2318 case IP_RECVOPTS:
2319 case IP_RETOPTS:
2320 case IP_PKTINFO:
2321 case IP_MTU_DISCOVER:
2322 case IP_RECVERR:
2323 case IP_RECVTOS:
2324#ifdef IP_FREEBIND
2325 case IP_FREEBIND:
2326#endif
2327 case IP_MULTICAST_TTL:
2328 case IP_MULTICAST_LOOP:
2f619698
FB		 2329 if (get_user_u32(len, optlen))
2330 return -TARGET_EFAULT;
8853f86e 2331 if (len < 0)
0da46a6e 2332 return -TARGET_EINVAL;
73160d95 2333 lv = sizeof(lv);
8853f86e
FB		 2334 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
2335 if (ret < 0)
2336 return ret;
2efbe911 2337 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
2efbe911 2338 len = 1;
2f619698
FB		 2339 if (put_user_u32(len, optlen)
2340 || put_user_u8(val, optval_addr))
2341 return -TARGET_EFAULT;
2efbe911 2342 } else {
2efbe911
FB		 2343 if (len > sizeof(int))
2344 len = sizeof(int);
2f619698
FB		 2345 if (put_user_u32(len, optlen)
2346 || put_user_u32(val, optval_addr))
2347 return -TARGET_EFAULT;
2efbe911 2348 }
8853f86e 2349 break;
2efbe911 2350 default:
c02f499e
TS		 2351 ret = -TARGET_ENOPROTOOPT;
2352 break;
8853f86e
FB		 2353 }
2354 break;
bd8ed485
TD		 2355 case SOL_IPV6:
2356 switch (optname) {
2357 case IPV6_MTU_DISCOVER:
2358 case IPV6_MTU:
2359 case IPV6_V6ONLY:
2360 case IPV6_RECVPKTINFO:
2361 case IPV6_UNICAST_HOPS:
2362 case IPV6_MULTICAST_HOPS:
2363 case IPV6_MULTICAST_LOOP:
2364 case IPV6_RECVERR:
2365 case IPV6_RECVHOPLIMIT:
2366 case IPV6_2292HOPLIMIT:
2367 case IPV6_CHECKSUM:
2368 if (get_user_u32(len, optlen))
2369 return -TARGET_EFAULT;
2370 if (len < 0)
2371 return -TARGET_EINVAL;
2372 lv = sizeof(lv);
2373 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
2374 if (ret < 0)
2375 return ret;
2376 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
2377 len = 1;
2378 if (put_user_u32(len, optlen)
2379 || put_user_u8(val, optval_addr))
2380 return -TARGET_EFAULT;
2381 } else {
2382 if (len > sizeof(int))
2383 len = sizeof(int);
2384 if (put_user_u32(len, optlen)
2385 || put_user_u32(val, optval_addr))
2386 return -TARGET_EFAULT;
2387 }
2388 break;
2389 default:
2390 ret = -TARGET_ENOPROTOOPT;
2391 break;
2392 }
2393 break;
8853f86e
FB		 2394 default:
2395 unimplemented:
2396 gemu_log("getsockopt level=%d optname=%d not yet supported\n",
2397 level, optname);
c02f499e 2398 ret = -TARGET_EOPNOTSUPP;
8853f86e
FB		 2399 break;
2400 }
2401 return ret;
7854b056
FB		 2402}
2403
9ac22517
MF		 2404/* Convert target low/high pair representing file offset into the host
2405 * low/high pair. This function doesn't handle offsets bigger than 64 bits
2406 * as the kernel doesn't handle them either.
2407 */
2408static void target_to_host_low_high(abi_ulong tlow,
2409 abi_ulong thigh,
2410 unsigned long *hlow,
2411 unsigned long *hhigh)
2412{
2413 uint64_t off = tlow |
2414 ((unsigned long long)thigh << TARGET_LONG_BITS / 2) <<
2415 TARGET_LONG_BITS / 2;
2416
2417 *hlow = off;
2418 *hhigh = (off >> HOST_LONG_BITS / 2) >> HOST_LONG_BITS / 2;
2419}
2420
f287b2c2 2421static struct iovec *lock_iovec(int type, abi_ulong target_addr,
dab32b32 2422 abi_ulong count, int copy)
53a5960a
PB		 2423{
2424 struct target_iovec *target_vec;
f287b2c2
RH		 2425 struct iovec *vec;
2426 abi_ulong total_len, max_len;
d732dcb4 2427 int i;
501bb4b0 2428 int err = 0;
29560a6c 2429 bool bad_address = false;
53a5960a 2430
f287b2c2
RH		 2431 if (count == 0) {
2432 errno = 0;
2433 return NULL;
2434 }
dab32b32 2435 if (count > IOV_MAX) {
f287b2c2
RH		 2436 errno = EINVAL;
2437 return NULL;
2438 }
2439
0e173b24 2440 vec = g_try_new0(struct iovec, count);
f287b2c2
RH		 2441 if (vec == NULL) {
2442 errno = ENOMEM;
2443 return NULL;
2444 }
2445
2446 target_vec = lock_user(VERIFY_READ, target_addr,
2447 count * sizeof(struct target_iovec), 1);
2448 if (target_vec == NULL) {
501bb4b0 2449 err = EFAULT;
f287b2c2
RH		 2450 goto fail2;
2451 }
2452
2453 /* ??? If host page size > target page size, this will result in a
2454 value larger than what we can actually support. */
2455 max_len = 0x7fffffff & TARGET_PAGE_MASK;
2456 total_len = 0;
2457
2458 for (i = 0; i < count; i++) {
2459 abi_ulong base = tswapal(target_vec[i].iov_base);
2460 abi_long len = tswapal(target_vec[i].iov_len);
2461
2462 if (len < 0) {
501bb4b0 2463 err = EINVAL;
f287b2c2
RH		 2464 goto fail;
2465 } else if (len == 0) {
2466 /* Zero length pointer is ignored. */
2467 vec[i].iov_base = 0;
41df8411 2468 } else {
f287b2c2 2469 vec[i].iov_base = lock_user(type, base, len, copy);
29560a6c
TM		 2470 /* If the first buffer pointer is bad, this is a fault. But
2471 * subsequent bad buffers will result in a partial write; this
2472 * is realized by filling the vector with null pointers and
2473 * zero lengths. */
f287b2c2 2474 if (!vec[i].iov_base) {
29560a6c
TM		 2475 if (i == 0) {
2476 err = EFAULT;
2477 goto fail;
2478 } else {
2479 bad_address = true;
2480 }
2481 }
2482 if (bad_address) {
2483 len = 0;
f287b2c2
RH		 2484 }
2485 if (len > max_len - total_len) {
2486 len = max_len - total_len;
2487 }
41df8411 2488 }
f287b2c2
RH		 2489 vec[i].iov_len = len;
2490 total_len += len;
579a97f7 2491 }
f287b2c2
RH		 2492
2493 unlock_user(target_vec, target_addr, 0);
2494 return vec;
2495
2496 fail:
7eff518b
CG		 2497 while (--i >= 0) {
2498 if (tswapal(target_vec[i].iov_len) > 0) {
2499 unlock_user(vec[i].iov_base, tswapal(target_vec[i].iov_base), 0);
2500 }
2501 }
f287b2c2 2502 unlock_user(target_vec, target_addr, 0);
501bb4b0 2503 fail2:
0e173b24 2504 g_free(vec);
501bb4b0 2505 errno = err;
f287b2c2 2506 return NULL;
53a5960a
PB		 2507}
2508
f287b2c2 2509static void unlock_iovec(struct iovec *vec, abi_ulong target_addr,
dab32b32 2510 abi_ulong count, int copy)
53a5960a
PB		 2511{
2512 struct target_iovec *target_vec;
53a5960a
PB		 2513 int i;
2514
f287b2c2
RH		 2515 target_vec = lock_user(VERIFY_READ, target_addr,
2516 count * sizeof(struct target_iovec), 1);
2517 if (target_vec) {
2518 for (i = 0; i < count; i++) {
2519 abi_ulong base = tswapal(target_vec[i].iov_base);
71ec7cef 2520 abi_long len = tswapal(target_vec[i].iov_len);
f287b2c2
RH		 2521 if (len < 0) {
2522 break;
2523 }
d732dcb4
AZ		 2524 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
2525 }
f287b2c2 2526 unlock_user(target_vec, target_addr, 0);
53a5960a 2527 }
579a97f7 2528
0e173b24 2529 g_free(vec);
53a5960a
PB		 2530}
2531
53d09b76 2532static inline int target_to_host_sock_type(int *type)
3532fa74 2533{
f651e6ae
PJ		 2534 int host_type = 0;
2535 int target_type = *type;
2536
2537 switch (target_type & TARGET_SOCK_TYPE_MASK) {
3532fa74 2538 case TARGET_SOCK_DGRAM:
f651e6ae 2539 host_type = SOCK_DGRAM;
3532fa74
FB		 2540 break;
2541 case TARGET_SOCK_STREAM:
f651e6ae 2542 host_type = SOCK_STREAM;
3532fa74 2543 break;
f651e6ae
PJ		 2544 default:
2545 host_type = target_type & TARGET_SOCK_TYPE_MASK;
3532fa74
FB		 2546 break;
2547 }
f651e6ae 2548 if (target_type & TARGET_SOCK_CLOEXEC) {
53d09b76 2549#if defined(SOCK_CLOEXEC)
f651e6ae 2550 host_type |= SOCK_CLOEXEC;
53d09b76
EI		 2551#else
2552 return -TARGET_EINVAL;
2553#endif
f651e6ae
PJ		 2554 }
2555 if (target_type & TARGET_SOCK_NONBLOCK) {
53d09b76 2556#if defined(SOCK_NONBLOCK)
f651e6ae 2557 host_type |= SOCK_NONBLOCK;
53d09b76
EI		 2558#elif !defined(O_NONBLOCK)
2559 return -TARGET_EINVAL;
2560#endif
f651e6ae
PJ		 2561 }
2562 *type = host_type;
53d09b76
EI		 2563 return 0;
2564}
2565
2566/* Try to emulate socket type flags after socket creation. */
2567static int sock_flags_fixup(int fd, int target_type)
2568{
2569#if !defined(SOCK_NONBLOCK) && defined(O_NONBLOCK)
2570 if (target_type & TARGET_SOCK_NONBLOCK) {
2571 int flags = fcntl(fd, F_GETFL);
2572 if (fcntl(fd, F_SETFL, O_NONBLOCK | flags) == -1) {
2573 close(fd);
2574 return -TARGET_EINVAL;
2575 }
2576 }
2577#endif
2578 return fd;
f651e6ae
PJ		 2579}
2580
2581/* do_socket() Must return target values and target errnos. */
2582static abi_long do_socket(int domain, int type, int protocol)
2583{
53d09b76
EI		 2584 int target_type = type;
2585 int ret;
2586
2587 ret = target_to_host_sock_type(&type);
2588 if (ret) {
2589 return ret;
2590 }
f651e6ae 2591
575b22b1
LV		 2592 if (domain == PF_NETLINK && !(
2593#ifdef CONFIG_RTNETLINK
2594 protocol == NETLINK_ROUTE ||
2595#endif
2596 protocol == NETLINK_KOBJECT_UEVENT ||
2597 protocol == NETLINK_AUDIT)) {
6c5b5645
LV		 2598 return -EPFNOSUPPORT;
2599 }
ff626f2d
LV		 2600
2601 if (domain == AF_PACKET ||
2602 (domain == AF_INET && type == SOCK_PACKET)) {
2603 protocol = tswap16(protocol);
2604 }
2605
53d09b76
EI		 2606 ret = get_errno(socket(domain, type, protocol));
2607 if (ret >= 0) {
2608 ret = sock_flags_fixup(ret, target_type);
0cf22722
LV		 2609 if (type == SOCK_PACKET) {
2610 /* Manage an obsolete case :
2611 * if socket type is SOCK_PACKET, bind by name
2612 */
2613 fd_trans_register(ret, &target_packet_trans);
6c5b5645
LV		 2614 } else if (domain == PF_NETLINK) {
2615 switch (protocol) {
575b22b1 2616#ifdef CONFIG_RTNETLINK
6c5b5645
LV		 2617 case NETLINK_ROUTE:
2618 fd_trans_register(ret, &target_netlink_route_trans);
2619 break;
575b22b1 2620#endif
b265620b
LV		 2621 case NETLINK_KOBJECT_UEVENT:
2622 /* nothing to do: messages are strings */
2623 break;
5ce9bb59
LV		 2624 case NETLINK_AUDIT:
2625 fd_trans_register(ret, &target_netlink_audit_trans);
2626 break;
6c5b5645
LV		 2627 default:
2628 g_assert_not_reached();
2629 }
0cf22722 2630 }
53d09b76
EI		 2631 }
2632 return ret;
3532fa74
FB		 2633}
2634
0da46a6e 2635/* do_bind() Must return target values and target errnos. */
992f48a0
BS		 2636static abi_long do_bind(int sockfd, abi_ulong target_addr,
2637 socklen_t addrlen)
3532fa74 2638{
8f7aeaf6 2639 void *addr;
917507b0 2640 abi_long ret;
8f7aeaf6 2641
38724253 2642 if ((int)addrlen < 0) {
8f7aeaf6 2643 return -TARGET_EINVAL;
38724253 2644 }
8f7aeaf6 2645
607175e0 2646 addr = alloca(addrlen+1);
3b46e624 2647
7b36f782 2648 ret = target_to_host_sockaddr(sockfd, addr, target_addr, addrlen);
917507b0
AP		 2649 if (ret)
2650 return ret;
2651
3532fa74
FB		 2652 return get_errno(bind(sockfd, addr, addrlen));
2653}
2654
0da46a6e 2655/* do_connect() Must return target values and target errnos. */
992f48a0
BS		 2656static abi_long do_connect(int sockfd, abi_ulong target_addr,
2657 socklen_t addrlen)
3532fa74 2658{
8f7aeaf6 2659 void *addr;
917507b0 2660 abi_long ret;
8f7aeaf6 2661
38724253 2662 if ((int)addrlen < 0) {
8f7aeaf6 2663 return -TARGET_EINVAL;
38724253 2664 }
8f7aeaf6 2665
2dd08dfd 2666 addr = alloca(addrlen+1);
3b46e624 2667
7b36f782 2668 ret = target_to_host_sockaddr(sockfd, addr, target_addr, addrlen);
917507b0
AP		 2669 if (ret)
2670 return ret;
2671
2a3c7619 2672 return get_errno(safe_connect(sockfd, addr, addrlen));
3532fa74
FB		 2673}
2674
f19e00d7
AG		 2675/* do_sendrecvmsg_locked() Must return target values and target errnos. */
2676static abi_long do_sendrecvmsg_locked(int fd, struct target_msghdr *msgp,
2677 int flags, int send)
3532fa74 2678{
6de645c7 2679 abi_long ret, len;
3532fa74 2680 struct msghdr msg;
dab32b32 2681 abi_ulong count;
3532fa74 2682 struct iovec *vec;
992f48a0 2683 abi_ulong target_vec;
3532fa74 2684
3532fa74
FB		 2685 if (msgp->msg_name) {
2686 msg.msg_namelen = tswap32(msgp->msg_namelen);
2dd08dfd 2687 msg.msg_name = alloca(msg.msg_namelen+1);
7b36f782
LV		 2688 ret = target_to_host_sockaddr(fd, msg.msg_name,
2689 tswapal(msgp->msg_name),
2690 msg.msg_namelen);
26a6fc96
PM		 2691 if (ret == -TARGET_EFAULT) {
2692 /* For connected sockets msg_name and msg_namelen must
2693 * be ignored, so returning EFAULT immediately is wrong.
2694 * Instead, pass a bad msg_name to the host kernel, and
2695 * let it decide whether to return EFAULT or not.
2696 */
2697 msg.msg_name = (void *)-1;
2698 } else if (ret) {
f287b2c2 2699 goto out2;
917507b0 2700 }
3532fa74
FB		 2701 } else {
2702 msg.msg_name = NULL;
2703 msg.msg_namelen = 0;
2704 }
cbb21eed 2705 msg.msg_controllen = 2 * tswapal(msgp->msg_controllen);
3532fa74 2706 msg.msg_control = alloca(msg.msg_controllen);
1d3d1b23
JS		 2707 memset(msg.msg_control, 0, msg.msg_controllen);
2708
3532fa74 2709 msg.msg_flags = tswap32(msgp->msg_flags);
3b46e624 2710
cbb21eed 2711 count = tswapal(msgp->msg_iovlen);
cbb21eed 2712 target_vec = tswapal(msgp->msg_iov);
97b07970
PM		 2713
2714 if (count > IOV_MAX) {
2715 /* sendrcvmsg returns a different errno for this condition than
2716 * readv/writev, so we must catch it here before lock_iovec() does.
2717 */
2718 ret = -TARGET_EMSGSIZE;
2719 goto out2;
2720 }
2721
f287b2c2
RH		 2722 vec = lock_iovec(send ? VERIFY_READ : VERIFY_WRITE,
2723 target_vec, count, send);
2724 if (vec == NULL) {
2725 ret = -host_to_target_errno(errno);
2726 goto out2;
2727 }
3532fa74
FB		 2728 msg.msg_iovlen = count;
2729 msg.msg_iov = vec;
3b46e624 2730
3532fa74 2731 if (send) {
6c5b5645 2732 if (fd_trans_target_to_host_data(fd)) {
7d61d892
LV		 2733 void *host_msg;
2734
2735 host_msg = g_malloc(msg.msg_iov->iov_len);
2736 memcpy(host_msg, msg.msg_iov->iov_base, msg.msg_iov->iov_len);
2737 ret = fd_trans_target_to_host_data(fd)(host_msg,
6c5b5645 2738 msg.msg_iov->iov_len);
7d61d892
LV		 2739 if (ret >= 0) {
2740 msg.msg_iov->iov_base = host_msg;
2741 ret = get_errno(safe_sendmsg(fd, &msg, flags));
2742 }
2743 g_free(host_msg);
6c5b5645
LV		 2744 } else {
2745 ret = target_to_host_cmsg(&msg, msgp);
7d61d892
LV		 2746 if (ret == 0) {
2747 ret = get_errno(safe_sendmsg(fd, &msg, flags));
2748 }
6c5b5645 2749 }
3532fa74 2750 } else {
66687530 2751 ret = get_errno(safe_recvmsg(fd, &msg, flags));
6de645c7
AZ		 2752 if (!is_error(ret)) {
2753 len = ret;
6c5b5645
LV		 2754 if (fd_trans_host_to_target_data(fd)) {
2755 ret = fd_trans_host_to_target_data(fd)(msg.msg_iov->iov_base,
2a03d3e6 2756 MIN(msg.msg_iov->iov_len, len));
6c5b5645
LV		 2757 } else {
2758 ret = host_to_target_cmsg(msgp, &msg);
2759 }
ca619067
JH		 2760 if (!is_error(ret)) {
2761 msgp->msg_namelen = tswap32(msg.msg_namelen);
26a6fc96 2762 if (msg.msg_name != NULL && msg.msg_name != (void *)-1) {
ca619067
JH		 2763 ret = host_to_target_sockaddr(tswapal(msgp->msg_name),
2764 msg.msg_name, msg.msg_namelen);
2765 if (ret) {
2766 goto out;
2767 }
2768 }
2769
6de645c7 2770 ret = len;
ca619067 2771 }
6de645c7 2772 }
3532fa74 2773 }
ca619067
JH		 2774
2775out:
3532fa74 2776 unlock_iovec(vec, target_vec, count, !send);
f287b2c2 2777out2:
f19e00d7
AG		 2778 return ret;
2779}
2780
2781static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg,
2782 int flags, int send)
2783{
2784 abi_long ret;
2785 struct target_msghdr *msgp;
2786
2787 if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE,
2788 msgp,
2789 target_msg,
2790 send ? 1 : 0)) {
2791 return -TARGET_EFAULT;
2792 }
2793 ret = do_sendrecvmsg_locked(fd, msgp, flags, send);
579a97f7 2794 unlock_user_struct(msgp, target_msg, send ? 0 : 1);
3532fa74
FB		 2795 return ret;
2796}
2797
f19e00d7
AG		 2798/* We don't rely on the C library to have sendmmsg/recvmmsg support,
2799 * so it might not have this *mmsg-specific flag either.
2800 */
2801#ifndef MSG_WAITFORONE
2802#define MSG_WAITFORONE 0x10000
2803#endif
2804
2805static abi_long do_sendrecvmmsg(int fd, abi_ulong target_msgvec,
2806 unsigned int vlen, unsigned int flags,
2807 int send)
2808{
2809 struct target_mmsghdr *mmsgp;
2810 abi_long ret = 0;
2811 int i;
2812
2813 if (vlen > UIO_MAXIOV) {
2814 vlen = UIO_MAXIOV;
2815 }
2816
2817 mmsgp = lock_user(VERIFY_WRITE, target_msgvec, sizeof(*mmsgp) * vlen, 1);
2818 if (!mmsgp) {
2819 return -TARGET_EFAULT;
2820 }
2821
2822 for (i = 0; i < vlen; i++) {
2823 ret = do_sendrecvmsg_locked(fd, &mmsgp[i].msg_hdr, flags, send);
2824 if (is_error(ret)) {
2825 break;
2826 }
2827 mmsgp[i].msg_len = tswap32(ret);
2828 /* MSG_WAITFORONE turns on MSG_DONTWAIT after one packet */
2829 if (flags & MSG_WAITFORONE) {
2830 flags |= MSG_DONTWAIT;
2831 }
2832 }
2833
2834 unlock_user(mmsgp, target_msgvec, sizeof(*mmsgp) * i);
2835
2836 /* Return number of datagrams sent if we sent any at all;
2837 * otherwise return the error.
2838 */
2839 if (i) {
2840 return i;
2841 }
2842 return ret;
2843}
f19e00d7 2844
a94b4987
PM		 2845/* do_accept4() Must return target values and target errnos. */
2846static abi_long do_accept4(int fd, abi_ulong target_addr,
2847 abi_ulong target_addrlen_addr, int flags)
1be9e1dc 2848{
2f619698
FB		 2849 socklen_t addrlen;
2850 void *addr;
992f48a0 2851 abi_long ret;
d25295d4
PJ		 2852 int host_flags;
2853
2854 host_flags = target_to_host_bitmask(flags, fcntl_flags_tbl);
1be9e1dc 2855
a94b4987 2856 if (target_addr == 0) {
ff6dc130 2857 return get_errno(safe_accept4(fd, NULL, NULL, host_flags));
a94b4987 2858 }
917507b0
AP		 2859
2860 /* linux returns EINVAL if addrlen pointer is invalid */
2f619698 2861 if (get_user_u32(addrlen, target_addrlen_addr))
917507b0 2862 return -TARGET_EINVAL;
2f619698 2863
38724253 2864 if ((int)addrlen < 0) {
8f7aeaf6 2865 return -TARGET_EINVAL;
38724253 2866 }
8f7aeaf6 2867
917507b0
AP		 2868 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
2869 return -TARGET_EINVAL;
2870
2f619698
FB		 2871 addr = alloca(addrlen);
2872
ff6dc130 2873 ret = get_errno(safe_accept4(fd, addr, &addrlen, host_flags));
1be9e1dc
PB		 2874 if (!is_error(ret)) {
2875 host_to_target_sockaddr(target_addr, addr, addrlen);
2f619698
FB		 2876 if (put_user_u32(addrlen, target_addrlen_addr))
2877 ret = -TARGET_EFAULT;
1be9e1dc
PB		 2878 }
2879 return ret;
2880}
2881
0da46a6e 2882/* do_getpeername() Must return target values and target errnos. */
992f48a0 2883static abi_long do_getpeername(int fd, abi_ulong target_addr,
2f619698 2884 abi_ulong target_addrlen_addr)
1be9e1dc 2885{
2f619698
FB		 2886 socklen_t addrlen;
2887 void *addr;
992f48a0 2888 abi_long ret;
1be9e1dc 2889
2f619698
FB		 2890 if (get_user_u32(addrlen, target_addrlen_addr))
2891 return -TARGET_EFAULT;
2892
38724253 2893 if ((int)addrlen < 0) {
8f7aeaf6 2894 return -TARGET_EINVAL;
38724253 2895 }
8f7aeaf6 2896
917507b0
AP		 2897 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
2898 return -TARGET_EFAULT;
2899
2f619698
FB		 2900 addr = alloca(addrlen);
2901
1be9e1dc
PB		 2902 ret = get_errno(getpeername(fd, addr, &addrlen));
2903 if (!is_error(ret)) {
2904 host_to_target_sockaddr(target_addr, addr, addrlen);
2f619698
FB		 2905 if (put_user_u32(addrlen, target_addrlen_addr))
2906 ret = -TARGET_EFAULT;
1be9e1dc
PB		 2907 }
2908 return ret;
2909}
2910
0da46a6e 2911/* do_getsockname() Must return target values and target errnos. */
992f48a0 2912static abi_long do_getsockname(int fd, abi_ulong target_addr,
2f619698 2913 abi_ulong target_addrlen_addr)
1be9e1dc 2914{
2f619698
FB		 2915 socklen_t addrlen;
2916 void *addr;
992f48a0 2917 abi_long ret;
1be9e1dc 2918
2f619698
FB		 2919 if (get_user_u32(addrlen, target_addrlen_addr))
2920 return -TARGET_EFAULT;
2921
38724253 2922 if ((int)addrlen < 0) {
8f7aeaf6 2923 return -TARGET_EINVAL;
38724253 2924 }
8f7aeaf6 2925
917507b0
AP		 2926 if (!access_ok(VERIFY_WRITE, target_addr, addrlen))
2927 return -TARGET_EFAULT;
2928
2f619698
FB		 2929 addr = alloca(addrlen);
2930
1be9e1dc
PB		 2931 ret = get_errno(getsockname(fd, addr, &addrlen));
2932 if (!is_error(ret)) {
2933 host_to_target_sockaddr(target_addr, addr, addrlen);
2f619698
FB		 2934 if (put_user_u32(addrlen, target_addrlen_addr))
2935 ret = -TARGET_EFAULT;
1be9e1dc
PB		 2936 }
2937 return ret;
2938}
2939
0da46a6e 2940/* do_socketpair() Must return target values and target errnos. */
992f48a0 2941static abi_long do_socketpair(int domain, int type, int protocol,
2f619698 2942 abi_ulong target_tab_addr)
1be9e1dc
PB		 2943{
2944 int tab[2];
992f48a0 2945 abi_long ret;
1be9e1dc 2946
f651e6ae
PJ		 2947 target_to_host_sock_type(&type);
2948
1be9e1dc
PB		 2949 ret = get_errno(socketpair(domain, type, protocol, tab));
2950 if (!is_error(ret)) {
2f619698
FB		 2951 if (put_user_s32(tab[0], target_tab_addr)
2952 || put_user_s32(tab[1], target_tab_addr + sizeof(tab[0])))
2953 ret = -TARGET_EFAULT;
1be9e1dc
PB		 2954 }
2955 return ret;
2956}
2957
0da46a6e 2958/* do_sendto() Must return target values and target errnos. */
992f48a0
BS		 2959static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags,
2960 abi_ulong target_addr, socklen_t addrlen)
1be9e1dc
PB		 2961{
2962 void *addr;
2963 void *host_msg;
7d61d892 2964 void *copy_msg = NULL;
992f48a0 2965 abi_long ret;
1be9e1dc 2966
38724253 2967 if ((int)addrlen < 0) {
8f7aeaf6 2968 return -TARGET_EINVAL;
38724253 2969 }
8f7aeaf6 2970
579a97f7
FB		 2971 host_msg = lock_user(VERIFY_READ, msg, len, 1);
2972 if (!host_msg)
2973 return -TARGET_EFAULT;
6c5b5645 2974 if (fd_trans_target_to_host_data(fd)) {
7d61d892
LV		 2975 copy_msg = host_msg;
2976 host_msg = g_malloc(len);
2977 memcpy(host_msg, copy_msg, len);
6c5b5645
LV		 2978 ret = fd_trans_target_to_host_data(fd)(host_msg, len);
2979 if (ret < 0) {
7d61d892 2980 goto fail;
6c5b5645
LV		 2981 }
2982 }
1be9e1dc 2983 if (target_addr) {
2dd08dfd 2984 addr = alloca(addrlen+1);
7b36f782 2985 ret = target_to_host_sockaddr(fd, addr, target_addr, addrlen);
917507b0 2986 if (ret) {
7d61d892 2987 goto fail;
917507b0 2988 }
66687530 2989 ret = get_errno(safe_sendto(fd, host_msg, len, flags, addr, addrlen));
1be9e1dc 2990 } else {
66687530 2991 ret = get_errno(safe_sendto(fd, host_msg, len, flags, NULL, 0));
1be9e1dc 2992 }
7d61d892
LV		 2993fail:
2994 if (copy_msg) {
2995 g_free(host_msg);
2996 host_msg = copy_msg;
2997 }
1be9e1dc
PB		 2998 unlock_user(host_msg, msg, 0);
2999 return ret;
3000}
3001
0da46a6e 3002/* do_recvfrom() Must return target values and target errnos. */
992f48a0
BS		 3003static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags,
3004 abi_ulong target_addr,
3005 abi_ulong target_addrlen)
1be9e1dc
PB		 3006{
3007 socklen_t addrlen;
3008 void *addr;
3009 void *host_msg;
992f48a0 3010 abi_long ret;
1be9e1dc 3011
579a97f7
FB		 3012 host_msg = lock_user(VERIFY_WRITE, msg, len, 0);
3013 if (!host_msg)
3014 return -TARGET_EFAULT;
1be9e1dc 3015 if (target_addr) {
2f619698
FB		 3016 if (get_user_u32(addrlen, target_addrlen)) {
3017 ret = -TARGET_EFAULT;
3018 goto fail;
3019 }
38724253 3020 if ((int)addrlen < 0) {
8f7aeaf6
AJ		 3021 ret = -TARGET_EINVAL;
3022 goto fail;
3023 }
1be9e1dc 3024 addr = alloca(addrlen);
66687530
PM		 3025 ret = get_errno(safe_recvfrom(fd, host_msg, len, flags,
3026 addr, &addrlen));
1be9e1dc
PB		 3027 } else {
3028 addr = NULL; /* To keep compiler quiet. */
66687530 3029 ret = get_errno(safe_recvfrom(fd, host_msg, len, flags, NULL, 0));
1be9e1dc
PB		 3030 }
3031 if (!is_error(ret)) {
c35e1f9c 3032 if (fd_trans_host_to_target_data(fd)) {
2a03d3e6
LV		 3033 abi_long trans;
3034 trans = fd_trans_host_to_target_data(fd)(host_msg, MIN(ret, len));
3035 if (is_error(trans)) {
3036 ret = trans;
3037 goto fail;
3038 }
c35e1f9c 3039 }
1be9e1dc
PB		 3040 if (target_addr) {
3041 host_to_target_sockaddr(target_addr, addr, addrlen);
2f619698
FB		 3042 if (put_user_u32(addrlen, target_addrlen)) {
3043 ret = -TARGET_EFAULT;
3044 goto fail;
3045 }
1be9e1dc
PB		 3046 }
3047 unlock_user(host_msg, msg, len);
3048 } else {
2f619698 3049fail:
1be9e1dc
PB		 3050 unlock_user(host_msg, msg, 0);
3051 }
3052 return ret;
3053}
3054
32407103 3055#ifdef TARGET_NR_socketcall
ff71a454 3056/* do_socketcall() must return target values and target errnos. */
992f48a0 3057static abi_long do_socketcall(int num, abi_ulong vptr)
31e31b8a 3058{
ff71a454
AM		 3059 static const unsigned nargs[] = { /* number of arguments per operation */
3060 [TARGET_SYS_SOCKET] = 3, /* domain, type, protocol */
3061 [TARGET_SYS_BIND] = 3, /* fd, addr, addrlen */
3062 [TARGET_SYS_CONNECT] = 3, /* fd, addr, addrlen */
3063 [TARGET_SYS_LISTEN] = 2, /* fd, backlog */
3064 [TARGET_SYS_ACCEPT] = 3, /* fd, addr, addrlen */
3065 [TARGET_SYS_GETSOCKNAME] = 3, /* fd, addr, addrlen */
3066 [TARGET_SYS_GETPEERNAME] = 3, /* fd, addr, addrlen */
3067 [TARGET_SYS_SOCKETPAIR] = 4, /* domain, type, protocol, tab */
3068 [TARGET_SYS_SEND] = 4, /* fd, msg, len, flags */
3069 [TARGET_SYS_RECV] = 4, /* fd, msg, len, flags */
3070 [TARGET_SYS_SENDTO] = 6, /* fd, msg, len, flags, addr, addrlen */
3071 [TARGET_SYS_RECVFROM] = 6, /* fd, msg, len, flags, addr, addrlen */
3072 [TARGET_SYS_SHUTDOWN] = 2, /* fd, how */
3073 [TARGET_SYS_SETSOCKOPT] = 5, /* fd, level, optname, optval, optlen */
3074 [TARGET_SYS_GETSOCKOPT] = 5, /* fd, level, optname, optval, optlen */
3075 [TARGET_SYS_SENDMSG] = 3, /* fd, msg, flags */
3076 [TARGET_SYS_RECVMSG] = 3, /* fd, msg, flags */
3077 [TARGET_SYS_ACCEPT4] = 4, /* fd, addr, addrlen, flags */
3078 [TARGET_SYS_RECVMMSG] = 4, /* fd, msgvec, vlen, flags */
3079 [TARGET_SYS_SENDMMSG] = 4, /* fd, msgvec, vlen, flags */
62dc90c6
MT		 3080 };
3081 abi_long a[6]; /* max 6 args */
ff71a454 3082 unsigned i;
62dc90c6 3083
ff71a454
AM		 3084 /* check the range of the first argument num */
3085 /* (TARGET_SYS_SENDMMSG is the highest among TARGET_SYS_xxx) */
3086 if (num < 1 || num > TARGET_SYS_SENDMMSG) {
3087 return -TARGET_EINVAL;
3088 }
3089 /* ensure we have space for args */
3090 if (nargs[num] > ARRAY_SIZE(a)) {
3091 return -TARGET_EINVAL;
3092 }
3093 /* collect the arguments in a[] according to nargs[] */
3094 for (i = 0; i < nargs[num]; ++i) {
3095 if (get_user_ual(a[i], vptr + i * sizeof(abi_long)) != 0) {
3096 return -TARGET_EFAULT;
31e31b8a 3097 }
62dc90c6 3098 }
ff71a454 3099 /* now when we have the args, invoke the appropriate underlying function */
62dc90c6 3100 switch (num) {
ff71a454 3101 case TARGET_SYS_SOCKET: /* domain, type, protocol */
62dc90c6 3102 return do_socket(a[0], a[1], a[2]);
ff71a454 3103 case TARGET_SYS_BIND: /* sockfd, addr, addrlen */
62dc90c6 3104 return do_bind(a[0], a[1], a[2]);
ff71a454 3105 case TARGET_SYS_CONNECT: /* sockfd, addr, addrlen */
62dc90c6 3106 return do_connect(a[0], a[1], a[2]);
ff71a454 3107 case TARGET_SYS_LISTEN: /* sockfd, backlog */
62dc90c6 3108 return get_errno(listen(a[0], a[1]));
ff71a454 3109 case TARGET_SYS_ACCEPT: /* sockfd, addr, addrlen */
62dc90c6 3110 return do_accept4(a[0], a[1], a[2], 0);
ff71a454 3111 case TARGET_SYS_GETSOCKNAME: /* sockfd, addr, addrlen */
62dc90c6 3112 return do_getsockname(a[0], a[1], a[2]);
ff71a454 3113 case TARGET_SYS_GETPEERNAME: /* sockfd, addr, addrlen */
62dc90c6 3114 return do_getpeername(a[0], a[1], a[2]);
ff71a454 3115 case TARGET_SYS_SOCKETPAIR: /* domain, type, protocol, tab */
62dc90c6 3116 return do_socketpair(a[0], a[1], a[2], a[3]);
ff71a454 3117 case TARGET_SYS_SEND: /* sockfd, msg, len, flags */
62dc90c6 3118 return do_sendto(a[0], a[1], a[2], a[3], 0, 0);
ff71a454 3119 case TARGET_SYS_RECV: /* sockfd, msg, len, flags */
62dc90c6 3120 return do_recvfrom(a[0], a[1], a[2], a[3], 0, 0);
ff71a454 3121 case TARGET_SYS_SENDTO: /* sockfd, msg, len, flags, addr, addrlen */
62dc90c6 3122 return do_sendto(a[0], a[1], a[2], a[3], a[4], a[5]);
ff71a454 3123 case TARGET_SYS_RECVFROM: /* sockfd, msg, len, flags, addr, addrlen */
62dc90c6 3124 return do_recvfrom(a[0], a[1], a[2], a[3], a[4], a[5]);
ff71a454 3125 case TARGET_SYS_SHUTDOWN: /* sockfd, how */
62dc90c6 3126 return get_errno(shutdown(a[0], a[1]));
ff71a454
AM		 3127 case TARGET_SYS_SETSOCKOPT: /* sockfd, level, optname, optval, optlen */
3128 return do_setsockopt(a[0], a[1], a[2], a[3], a[4]);
3129 case TARGET_SYS_GETSOCKOPT: /* sockfd, level, optname, optval, optlen */
3130 return do_getsockopt(a[0], a[1], a[2], a[3], a[4]);
3131 case TARGET_SYS_SENDMSG: /* sockfd, msg, flags */
62dc90c6 3132 return do_sendrecvmsg(a[0], a[1], a[2], 1);
ff71a454 3133 case TARGET_SYS_RECVMSG: /* sockfd, msg, flags */
62dc90c6 3134 return do_sendrecvmsg(a[0], a[1], a[2], 0);
ff71a454
AM		 3135 case TARGET_SYS_ACCEPT4: /* sockfd, addr, addrlen, flags */
3136 return do_accept4(a[0], a[1], a[2], a[3]);
3137 case TARGET_SYS_RECVMMSG: /* sockfd, msgvec, vlen, flags */
5a53dc50 3138 return do_sendrecvmmsg(a[0], a[1], a[2], a[3], 0);
ff71a454
AM		 3139 case TARGET_SYS_SENDMMSG: /* sockfd, msgvec, vlen, flags */
3140 return do_sendrecvmmsg(a[0], a[1], a[2], a[3], 1);
31e31b8a
FB		 3141 default:
3142 gemu_log("Unsupported socketcall: %d\n", num);
ff71a454 3143 return -TARGET_EINVAL;
31e31b8a 3144 }
31e31b8a 3145}
32407103 3146#endif
31e31b8a 3147
8853f86e
FB		 3148#define N_SHM_REGIONS 32
3149
3150static struct shm_region {
b6e17875
PM		 3151 abi_ulong start;
3152 abi_ulong size;
3153 bool in_use;
8853f86e
FB		 3154} shm_regions[N_SHM_REGIONS];
3155
005eb2ae
PM		 3156#ifndef TARGET_SEMID64_DS
3157/* asm-generic version of this struct */
3158struct target_semid64_ds
3eb6b044
TS		 3159{
3160 struct target_ipc_perm sem_perm;
992f48a0 3161 abi_ulong sem_otime;
005eb2ae 3162#if TARGET_ABI_BITS == 32
992f48a0 3163 abi_ulong __unused1;
03527344 3164#endif
992f48a0 3165 abi_ulong sem_ctime;
005eb2ae 3166#if TARGET_ABI_BITS == 32
992f48a0 3167 abi_ulong __unused2;
03527344 3168#endif
992f48a0
BS		 3169 abi_ulong sem_nsems;
3170 abi_ulong __unused3;
3171 abi_ulong __unused4;
3eb6b044 3172};
005eb2ae 3173#endif
3eb6b044 3174
579a97f7
FB		 3175static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip,
3176 abi_ulong target_addr)
3eb6b044
TS		 3177{
3178 struct target_ipc_perm *target_ip;
005eb2ae 3179 struct target_semid64_ds *target_sd;
3eb6b044 3180
579a97f7
FB		 3181 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
3182 return -TARGET_EFAULT;
e8bbe36c 3183 target_ip = &(target_sd->sem_perm);
55a2b163
PJ		 3184 host_ip->__key = tswap32(target_ip->__key);
3185 host_ip->uid = tswap32(target_ip->uid);
3186 host_ip->gid = tswap32(target_ip->gid);
3187 host_ip->cuid = tswap32(target_ip->cuid);
3188 host_ip->cgid = tswap32(target_ip->cgid);
3189#if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_PPC)
3190 host_ip->mode = tswap32(target_ip->mode);
3191#else
cbb21eed 3192 host_ip->mode = tswap16(target_ip->mode);
55a2b163
PJ		 3193#endif
3194#if defined(TARGET_PPC)
3195 host_ip->__seq = tswap32(target_ip->__seq);
3196#else
3197 host_ip->__seq = tswap16(target_ip->__seq);
3198#endif
3eb6b044 3199 unlock_user_struct(target_sd, target_addr, 0);
579a97f7 3200 return 0;
3eb6b044
TS		 3201}
3202
579a97f7
FB		 3203static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr,
3204 struct ipc_perm *host_ip)
3eb6b044
TS		 3205{
3206 struct target_ipc_perm *target_ip;
005eb2ae 3207 struct target_semid64_ds *target_sd;
3eb6b044 3208
579a97f7
FB		 3209 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
3210 return -TARGET_EFAULT;
3eb6b044 3211 target_ip = &(target_sd->sem_perm);
55a2b163
PJ		 3212 target_ip->__key = tswap32(host_ip->__key);
3213 target_ip->uid = tswap32(host_ip->uid);
3214 target_ip->gid = tswap32(host_ip->gid);
3215 target_ip->cuid = tswap32(host_ip->cuid);
3216 target_ip->cgid = tswap32(host_ip->cgid);
3217#if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_PPC)
3218 target_ip->mode = tswap32(host_ip->mode);
3219#else
cbb21eed 3220 target_ip->mode = tswap16(host_ip->mode);
55a2b163
PJ		 3221#endif
3222#if defined(TARGET_PPC)
3223 target_ip->__seq = tswap32(host_ip->__seq);
3224#else
3225 target_ip->__seq = tswap16(host_ip->__seq);
3226#endif
3eb6b044 3227 unlock_user_struct(target_sd, target_addr, 1);
579a97f7 3228 return 0;
3eb6b044
TS		 3229}
3230
579a97f7
FB		 3231static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd,
3232 abi_ulong target_addr)
3eb6b044 3233{
005eb2ae 3234 struct target_semid64_ds *target_sd;
3eb6b044 3235
579a97f7
FB		 3236 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
3237 return -TARGET_EFAULT;
e5289087
AJ		 3238 if (target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr))
3239 return -TARGET_EFAULT;
cbb21eed
MB		 3240 host_sd->sem_nsems = tswapal(target_sd->sem_nsems);
3241 host_sd->sem_otime = tswapal(target_sd->sem_otime);
3242 host_sd->sem_ctime = tswapal(target_sd->sem_ctime);
3eb6b044 3243 unlock_user_struct(target_sd, target_addr, 0);
579a97f7 3244 return 0;
3eb6b044
TS		 3245}
3246
579a97f7
FB		 3247static inline abi_long host_to_target_semid_ds(abi_ulong target_addr,
3248 struct semid_ds *host_sd)
3eb6b044 3249{
005eb2ae 3250 struct target_semid64_ds *target_sd;
3eb6b044 3251
579a97f7
FB		 3252 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
3253 return -TARGET_EFAULT;
e5289087 3254 if (host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm)))
3a93113a 3255 return -TARGET_EFAULT;
cbb21eed
MB		 3256 target_sd->sem_nsems = tswapal(host_sd->sem_nsems);
3257 target_sd->sem_otime = tswapal(host_sd->sem_otime);
3258 target_sd->sem_ctime = tswapal(host_sd->sem_ctime);
3eb6b044 3259 unlock_user_struct(target_sd, target_addr, 1);
579a97f7 3260 return 0;
3eb6b044
TS		 3261}
3262
e5289087
AJ		 3263struct target_seminfo {
3264 int semmap;
3265 int semmni;
3266 int semmns;
3267 int semmnu;
3268 int semmsl;
3269 int semopm;
3270 int semume;
3271 int semusz;
3272 int semvmx;
3273 int semaem;
3274};
3275
3276static inline abi_long host_to_target_seminfo(abi_ulong target_addr,
3277 struct seminfo *host_seminfo)
3278{
3279 struct target_seminfo *target_seminfo;
3280 if (!lock_user_struct(VERIFY_WRITE, target_seminfo, target_addr, 0))
3281 return -TARGET_EFAULT;
3282 __put_user(host_seminfo->semmap, &target_seminfo->semmap);
3283 __put_user(host_seminfo->semmni, &target_seminfo->semmni);
3284 __put_user(host_seminfo->semmns, &target_seminfo->semmns);
3285 __put_user(host_seminfo->semmnu, &target_seminfo->semmnu);
3286 __put_user(host_seminfo->semmsl, &target_seminfo->semmsl);
3287 __put_user(host_seminfo->semopm, &target_seminfo->semopm);
3288 __put_user(host_seminfo->semume, &target_seminfo->semume);
3289 __put_user(host_seminfo->semusz, &target_seminfo->semusz);
3290 __put_user(host_seminfo->semvmx, &target_seminfo->semvmx);
3291 __put_user(host_seminfo->semaem, &target_seminfo->semaem);
3292 unlock_user_struct(target_seminfo, target_addr, 1);
3293 return 0;
3294}
3295
fa294816
TS		 3296union semun {
3297 int val;
3eb6b044 3298 struct semid_ds *buf;
fa294816 3299 unsigned short *array;
e5289087 3300 struct seminfo *__buf;
fa294816
TS		 3301};
3302
3eb6b044
TS		 3303union target_semun {
3304 int val;
e5289087
AJ		 3305 abi_ulong buf;
3306 abi_ulong array;
3307 abi_ulong __buf;
3eb6b044
TS		 3308};
3309
e5289087
AJ		 3310static inline abi_long target_to_host_semarray(int semid, unsigned short **host_array,
3311 abi_ulong target_addr)
3eb6b044 3312{
e5289087
AJ		 3313 int nsems;
3314 unsigned short *array;
3315 union semun semun;
3316 struct semid_ds semid_ds;
3317 int i, ret;
3eb6b044 3318
e5289087
AJ		 3319 semun.buf = &semid_ds;
3320
3321 ret = semctl(semid, 0, IPC_STAT, semun);
3322 if (ret == -1)
3323 return get_errno(ret);
3324
3325 nsems = semid_ds.sem_nsems;
3326
0e173b24 3327 *host_array = g_try_new(unsigned short, nsems);
69d4c703
PM		 3328 if (!*host_array) {
3329 return -TARGET_ENOMEM;
3330 }
e5289087
AJ		 3331 array = lock_user(VERIFY_READ, target_addr,
3332 nsems*sizeof(unsigned short), 1);
69d4c703 3333 if (!array) {
0e173b24 3334 g_free(*host_array);
e5289087 3335 return -TARGET_EFAULT;
69d4c703 3336 }
e5289087
AJ		 3337
3338 for(i=0; i<nsems; i++) {
3339 __get_user((*host_array)[i], &array[i]);
3eb6b044 3340 }
e5289087
AJ		 3341 unlock_user(array, target_addr, 0);
3342
579a97f7 3343 return 0;
3eb6b044
TS		 3344}
3345
e5289087
AJ		 3346static inline abi_long host_to_target_semarray(int semid, abi_ulong target_addr,
3347 unsigned short **host_array)
3eb6b044 3348{
e5289087
AJ		 3349 int nsems;
3350 unsigned short *array;
3351 union semun semun;
3352 struct semid_ds semid_ds;
3353 int i, ret;
3eb6b044 3354
e5289087
AJ		 3355 semun.buf = &semid_ds;
3356
3357 ret = semctl(semid, 0, IPC_STAT, semun);
3358 if (ret == -1)
3359 return get_errno(ret);
3360
3361 nsems = semid_ds.sem_nsems;
3362
3363 array = lock_user(VERIFY_WRITE, target_addr,
3364 nsems*sizeof(unsigned short), 0);
3365 if (!array)
3366 return -TARGET_EFAULT;
3367
3368 for(i=0; i<nsems; i++) {
3369 __put_user((*host_array)[i], &array[i]);
3eb6b044 3370 }
0e173b24 3371 g_free(*host_array);
e5289087
AJ		 3372 unlock_user(array, target_addr, 1);
3373
579a97f7 3374 return 0;
3eb6b044
TS		 3375}
3376
e5289087 3377static inline abi_long do_semctl(int semid, int semnum, int cmd,
d1c002b6 3378 abi_ulong target_arg)
3eb6b044 3379{
d1c002b6 3380 union target_semun target_su = { .buf = target_arg };
3eb6b044
TS		 3381 union semun arg;
3382 struct semid_ds dsarg;
7b8118e8 3383 unsigned short *array = NULL;
e5289087
AJ		 3384 struct seminfo seminfo;
3385 abi_long ret = -TARGET_EINVAL;
3386 abi_long err;
3387 cmd &= 0xff;
3eb6b044
TS		 3388
3389 switch( cmd ) {
3390 case GETVAL:
3eb6b044 3391 case SETVAL:
5464baec
TM		 3392 /* In 64 bit cross-endian situations, we will erroneously pick up
3393 * the wrong half of the union for the "val" element. To rectify
3394 * this, the entire 8-byte structure is byteswapped, followed by
3395 * a swap of the 4 byte val field. In other cases, the data is
3396 * already in proper host byte order. */
3397 if (sizeof(target_su.val) != (sizeof(target_su.buf))) {
3398 target_su.buf = tswapal(target_su.buf);
3399 arg.val = tswap32(target_su.val);
3400 } else {
3401 arg.val = target_su.val;
3402 }
e5289087 3403 ret = get_errno(semctl(semid, semnum, cmd, arg));
3eb6b044
TS		 3404 break;
3405 case GETALL:
3eb6b044 3406 case SETALL:
e5289087
AJ		 3407 err = target_to_host_semarray(semid, &array, target_su.array);
3408 if (err)
3409 return err;
3410 arg.array = array;
3411 ret = get_errno(semctl(semid, semnum, cmd, arg));
3412 err = host_to_target_semarray(semid, target_su.array, &array);
3413 if (err)
3414 return err;
3eb6b044
TS		 3415 break;
3416 case IPC_STAT:
3eb6b044 3417 case IPC_SET:
e5289087
AJ		 3418 case SEM_STAT:
3419 err = target_to_host_semid_ds(&dsarg, target_su.buf);
3420 if (err)
3421 return err;
3422 arg.buf = &dsarg;
3423 ret = get_errno(semctl(semid, semnum, cmd, arg));
3424 err = host_to_target_semid_ds(target_su.buf, &dsarg);
3425 if (err)
3426 return err;
3427 break;
3428 case IPC_INFO:
3429 case SEM_INFO:
3430 arg.__buf = &seminfo;
3431 ret = get_errno(semctl(semid, semnum, cmd, arg));
3432 err = host_to_target_seminfo(target_su.__buf, &seminfo);
3433 if (err)
3434 return err;
3435 break;
3436 case IPC_RMID:
3437 case GETPID:
3438 case GETNCNT:
3439 case GETZCNT:
3440 ret = get_errno(semctl(semid, semnum, cmd, NULL));
3eb6b044 3441 break;
3eb6b044
TS		 3442 }
3443
3444 return ret;
3445}
3446
e5289087
AJ		 3447struct target_sembuf {
3448 unsigned short sem_num;
3449 short sem_op;
3450 short sem_flg;
3451};
3452
3453static inline abi_long target_to_host_sembuf(struct sembuf *host_sembuf,
3454 abi_ulong target_addr,
3455 unsigned nsops)
3456{
3457 struct target_sembuf *target_sembuf;
3458 int i;
3459
3460 target_sembuf = lock_user(VERIFY_READ, target_addr,
3461 nsops*sizeof(struct target_sembuf), 1);
3462 if (!target_sembuf)
3463 return -TARGET_EFAULT;
3464
3465 for(i=0; i<nsops; i++) {
3466 __get_user(host_sembuf[i].sem_num, &target_sembuf[i].sem_num);
3467 __get_user(host_sembuf[i].sem_op, &target_sembuf[i].sem_op);
3468 __get_user(host_sembuf[i].sem_flg, &target_sembuf[i].sem_flg);
3469 }
3470
3471 unlock_user(target_sembuf, target_addr, 0);
3472
3473 return 0;
3474}
3475
3476static inline abi_long do_semop(int semid, abi_long ptr, unsigned nsops)
3477{
3478 struct sembuf sops[nsops];
3479
3480 if (target_to_host_sembuf(sops, ptr, nsops))
3481 return -TARGET_EFAULT;
3482
ffb7ee79 3483 return get_errno(safe_semtimedop(semid, sops, nsops, NULL));
e5289087
AJ		 3484}
3485
1bc012f6
TS		 3486struct target_msqid_ds
3487{
1c54ff97
AJ		 3488 struct target_ipc_perm msg_perm;
3489 abi_ulong msg_stime;
3490#if TARGET_ABI_BITS == 32
3491 abi_ulong __unused1;
3492#endif
3493 abi_ulong msg_rtime;
3494#if TARGET_ABI_BITS == 32
3495 abi_ulong __unused2;
3496#endif
3497 abi_ulong msg_ctime;
3498#if TARGET_ABI_BITS == 32
3499 abi_ulong __unused3;
3500#endif
3501 abi_ulong __msg_cbytes;
3502 abi_ulong msg_qnum;
3503 abi_ulong msg_qbytes;
3504 abi_ulong msg_lspid;
3505 abi_ulong msg_lrpid;
3506 abi_ulong __unused4;
3507 abi_ulong __unused5;
1bc012f6
TS		 3508};
3509
579a97f7
FB		 3510static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md,
3511 abi_ulong target_addr)
1bc012f6
TS		 3512{
3513 struct target_msqid_ds *target_md;
3514
579a97f7
FB		 3515 if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1))
3516 return -TARGET_EFAULT;
1c54ff97
AJ		 3517 if (target_to_host_ipc_perm(&(host_md->msg_perm),target_addr))
3518 return -TARGET_EFAULT;
cbb21eed
MB		 3519 host_md->msg_stime = tswapal(target_md->msg_stime);
3520 host_md->msg_rtime = tswapal(target_md->msg_rtime);
3521 host_md->msg_ctime = tswapal(target_md->msg_ctime);
3522 host_md->__msg_cbytes = tswapal(target_md->__msg_cbytes);
3523 host_md->msg_qnum = tswapal(target_md->msg_qnum);
3524 host_md->msg_qbytes = tswapal(target_md->msg_qbytes);
3525 host_md->msg_lspid = tswapal(target_md->msg_lspid);
3526 host_md->msg_lrpid = tswapal(target_md->msg_lrpid);
1bc012f6 3527 unlock_user_struct(target_md, target_addr, 0);
579a97f7 3528 return 0;
1bc012f6
TS		 3529}
3530
579a97f7
FB		 3531static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr,
3532 struct msqid_ds *host_md)
1bc012f6
TS		 3533{
3534 struct target_msqid_ds *target_md;
3535
579a97f7
FB		 3536 if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0))
3537 return -TARGET_EFAULT;
1c54ff97
AJ		 3538 if (host_to_target_ipc_perm(target_addr,&(host_md->msg_perm)))
3539 return -TARGET_EFAULT;
cbb21eed
MB		 3540 target_md->msg_stime = tswapal(host_md->msg_stime);
3541 target_md->msg_rtime = tswapal(host_md->msg_rtime);
3542 target_md->msg_ctime = tswapal(host_md->msg_ctime);
3543 target_md->__msg_cbytes = tswapal(host_md->__msg_cbytes);
3544 target_md->msg_qnum = tswapal(host_md->msg_qnum);
3545 target_md->msg_qbytes = tswapal(host_md->msg_qbytes);
3546 target_md->msg_lspid = tswapal(host_md->msg_lspid);
3547 target_md->msg_lrpid = tswapal(host_md->msg_lrpid);
1bc012f6 3548 unlock_user_struct(target_md, target_addr, 1);
579a97f7 3549 return 0;
1bc012f6
TS		 3550}
3551
1c54ff97
AJ		 3552struct target_msginfo {
3553 int msgpool;
3554 int msgmap;
3555 int msgmax;
3556 int msgmnb;
3557 int msgmni;
3558 int msgssz;
3559 int msgtql;
3560 unsigned short int msgseg;
3561};
3562
3563static inline abi_long host_to_target_msginfo(abi_ulong target_addr,
3564 struct msginfo *host_msginfo)
3565{
3566 struct target_msginfo *target_msginfo;
3567 if (!lock_user_struct(VERIFY_WRITE, target_msginfo, target_addr, 0))
3568 return -TARGET_EFAULT;
3569 __put_user(host_msginfo->msgpool, &target_msginfo->msgpool);
3570 __put_user(host_msginfo->msgmap, &target_msginfo->msgmap);
3571 __put_user(host_msginfo->msgmax, &target_msginfo->msgmax);
3572 __put_user(host_msginfo->msgmnb, &target_msginfo->msgmnb);
3573 __put_user(host_msginfo->msgmni, &target_msginfo->msgmni);
3574 __put_user(host_msginfo->msgssz, &target_msginfo->msgssz);
3575 __put_user(host_msginfo->msgtql, &target_msginfo->msgtql);
3576 __put_user(host_msginfo->msgseg, &target_msginfo->msgseg);
3577 unlock_user_struct(target_msginfo, target_addr, 1);
00b229ac 3578 return 0;
1c54ff97
AJ		 3579}
3580
3581static inline abi_long do_msgctl(int msgid, int cmd, abi_long ptr)
1bc012f6
TS		 3582{
3583 struct msqid_ds dsarg;
1c54ff97
AJ		 3584 struct msginfo msginfo;
3585 abi_long ret = -TARGET_EINVAL;
3586
3587 cmd &= 0xff;
3588
3589 switch (cmd) {
1bc012f6
TS		 3590 case IPC_STAT:
3591 case IPC_SET:
1c54ff97
AJ		 3592 case MSG_STAT:
3593 if (target_to_host_msqid_ds(&dsarg,ptr))
3594 return -TARGET_EFAULT;
3595 ret = get_errno(msgctl(msgid, cmd, &dsarg));
3596 if (host_to_target_msqid_ds(ptr,&dsarg))
3597 return -TARGET_EFAULT;
3598 break;
3599 case IPC_RMID:
3600 ret = get_errno(msgctl(msgid, cmd, NULL));
3601 break;
3602 case IPC_INFO:
3603 case MSG_INFO:
3604 ret = get_errno(msgctl(msgid, cmd, (struct msqid_ds *)&msginfo));
3605 if (host_to_target_msginfo(ptr, &msginfo))
3606 return -TARGET_EFAULT;
3607 break;
1bc012f6 3608 }
1c54ff97 3609
1bc012f6
TS		 3610 return ret;
3611}
3612
3613struct target_msgbuf {
1c54ff97
AJ		 3614 abi_long mtype;
3615 char mtext[1];
1bc012f6
TS		 3616};
3617
992f48a0 3618static inline abi_long do_msgsnd(int msqid, abi_long msgp,
edcc5f9d 3619 ssize_t msgsz, int msgflg)
1bc012f6
TS		 3620{
3621 struct target_msgbuf *target_mb;
3622 struct msgbuf *host_mb;
992f48a0 3623 abi_long ret = 0;
1bc012f6 3624
edcc5f9d
TM		 3625 if (msgsz < 0) {
3626 return -TARGET_EINVAL;
3627 }
3628
579a97f7
FB		 3629 if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0))
3630 return -TARGET_EFAULT;
0e173b24 3631 host_mb = g_try_malloc(msgsz + sizeof(long));
29e03fcb
HZ		 3632 if (!host_mb) {
3633 unlock_user_struct(target_mb, msgp, 0);
3634 return -TARGET_ENOMEM;
3635 }
cbb21eed 3636 host_mb->mtype = (abi_long) tswapal(target_mb->mtype);
1c54ff97 3637 memcpy(host_mb->mtext, target_mb->mtext, msgsz);
89f9fe44 3638 ret = get_errno(safe_msgsnd(msqid, host_mb, msgsz, msgflg));
0e173b24 3639 g_free(host_mb);
1bc012f6
TS		 3640 unlock_user_struct(target_mb, msgp, 0);
3641
3642 return ret;
3643}
3644
992f48a0 3645static inline abi_long do_msgrcv(int msqid, abi_long msgp,
99874f65 3646 ssize_t msgsz, abi_long msgtyp,
992f48a0 3647 int msgflg)
1bc012f6
TS		 3648{
3649 struct target_msgbuf *target_mb;
579a97f7 3650 char *target_mtext;
1bc012f6 3651 struct msgbuf *host_mb;
992f48a0 3652 abi_long ret = 0;
1bc012f6 3653
99874f65
PM		 3654 if (msgsz < 0) {
3655 return -TARGET_EINVAL;
3656 }
3657
579a97f7
FB		 3658 if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0))
3659 return -TARGET_EFAULT;
1c54ff97 3660
415d8471
PM		 3661 host_mb = g_try_malloc(msgsz + sizeof(long));
3662 if (!host_mb) {
3663 ret = -TARGET_ENOMEM;
3664 goto end;
3665 }
89f9fe44 3666 ret = get_errno(safe_msgrcv(msqid, host_mb, msgsz, msgtyp, msgflg));
1c54ff97 3667
579a97f7
FB		 3668 if (ret > 0) {
3669 abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong);
3670 target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0);
3671 if (!target_mtext) {
3672 ret = -TARGET_EFAULT;
3673 goto end;
3674 }
1c54ff97 3675 memcpy(target_mb->mtext, host_mb->mtext, ret);
579a97f7
FB		 3676 unlock_user(target_mtext, target_mtext_addr, ret);
3677 }
1c54ff97 3678
cbb21eed 3679 target_mb->mtype = tswapal(host_mb->mtype);
1bc012f6 3680
579a97f7
FB		 3681end:
3682 if (target_mb)
3683 unlock_user_struct(target_mb, msgp, 1);
0d07fe47 3684 g_free(host_mb);
1bc012f6
TS		 3685 return ret;
3686}
3687
88a8c984
RV		 3688static inline abi_long target_to_host_shmid_ds(struct shmid_ds *host_sd,
3689 abi_ulong target_addr)
3690{
3691 struct target_shmid_ds *target_sd;
3692
3693 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
3694 return -TARGET_EFAULT;
3695 if (target_to_host_ipc_perm(&(host_sd->shm_perm), target_addr))
3696 return -TARGET_EFAULT;
3697 __get_user(host_sd->shm_segsz, &target_sd->shm_segsz);
3698 __get_user(host_sd->shm_atime, &target_sd->shm_atime);
3699 __get_user(host_sd->shm_dtime, &target_sd->shm_dtime);
3700 __get_user(host_sd->shm_ctime, &target_sd->shm_ctime);
3701 __get_user(host_sd->shm_cpid, &target_sd->shm_cpid);
3702 __get_user(host_sd->shm_lpid, &target_sd->shm_lpid);
3703 __get_user(host_sd->shm_nattch, &target_sd->shm_nattch);
3704 unlock_user_struct(target_sd, target_addr, 0);
3705 return 0;
3706}
3707
3708static inline abi_long host_to_target_shmid_ds(abi_ulong target_addr,
3709 struct shmid_ds *host_sd)
3710{
3711 struct target_shmid_ds *target_sd;
3712
3713 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
3714 return -TARGET_EFAULT;
3715 if (host_to_target_ipc_perm(target_addr, &(host_sd->shm_perm)))
3716 return -TARGET_EFAULT;
3717 __put_user(host_sd->shm_segsz, &target_sd->shm_segsz);
3718 __put_user(host_sd->shm_atime, &target_sd->shm_atime);
3719 __put_user(host_sd->shm_dtime, &target_sd->shm_dtime);
3720 __put_user(host_sd->shm_ctime, &target_sd->shm_ctime);
3721 __put_user(host_sd->shm_cpid, &target_sd->shm_cpid);
3722 __put_user(host_sd->shm_lpid, &target_sd->shm_lpid);
3723 __put_user(host_sd->shm_nattch, &target_sd->shm_nattch);
3724 unlock_user_struct(target_sd, target_addr, 1);
3725 return 0;
3726}
3727
3728struct target_shminfo {
3729 abi_ulong shmmax;
3730 abi_ulong shmmin;
3731 abi_ulong shmmni;
3732 abi_ulong shmseg;
3733 abi_ulong shmall;
3734};
3735
3736static inline abi_long host_to_target_shminfo(abi_ulong target_addr,
3737 struct shminfo *host_shminfo)
3738{
3739 struct target_shminfo *target_shminfo;
3740 if (!lock_user_struct(VERIFY_WRITE, target_shminfo, target_addr, 0))
3741 return -TARGET_EFAULT;
3742 __put_user(host_shminfo->shmmax, &target_shminfo->shmmax);
3743 __put_user(host_shminfo->shmmin, &target_shminfo->shmmin);
3744 __put_user(host_shminfo->shmmni, &target_shminfo->shmmni);
3745 __put_user(host_shminfo->shmseg, &target_shminfo->shmseg);
3746 __put_user(host_shminfo->shmall, &target_shminfo->shmall);
3747 unlock_user_struct(target_shminfo, target_addr, 1);
3748 return 0;
3749}
3750
3751struct target_shm_info {
3752 int used_ids;
3753 abi_ulong shm_tot;
3754 abi_ulong shm_rss;
3755 abi_ulong shm_swp;
3756 abi_ulong swap_attempts;
3757 abi_ulong swap_successes;
3758};
3759
3760static inline abi_long host_to_target_shm_info(abi_ulong target_addr,
3761 struct shm_info *host_shm_info)
3762{
3763 struct target_shm_info *target_shm_info;
3764 if (!lock_user_struct(VERIFY_WRITE, target_shm_info, target_addr, 0))
3765 return -TARGET_EFAULT;
3766 __put_user(host_shm_info->used_ids, &target_shm_info->used_ids);
3767 __put_user(host_shm_info->shm_tot, &target_shm_info->shm_tot);
3768 __put_user(host_shm_info->shm_rss, &target_shm_info->shm_rss);
3769 __put_user(host_shm_info->shm_swp, &target_shm_info->shm_swp);
3770 __put_user(host_shm_info->swap_attempts, &target_shm_info->swap_attempts);
3771 __put_user(host_shm_info->swap_successes, &target_shm_info->swap_successes);
3772 unlock_user_struct(target_shm_info, target_addr, 1);
3773 return 0;
3774}
3775
3776static inline abi_long do_shmctl(int shmid, int cmd, abi_long buf)
3777{
3778 struct shmid_ds dsarg;
3779 struct shminfo shminfo;
3780 struct shm_info shm_info;
3781 abi_long ret = -TARGET_EINVAL;
3782
3783 cmd &= 0xff;
3784
3785 switch(cmd) {
3786 case IPC_STAT:
3787 case IPC_SET:
3788 case SHM_STAT:
3789 if (target_to_host_shmid_ds(&dsarg, buf))
3790 return -TARGET_EFAULT;
3791 ret = get_errno(shmctl(shmid, cmd, &dsarg));
3792 if (host_to_target_shmid_ds(buf, &dsarg))
3793 return -TARGET_EFAULT;
3794 break;
3795 case IPC_INFO:
3796 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shminfo));
3797 if (host_to_target_shminfo(buf, &shminfo))
3798 return -TARGET_EFAULT;
3799 break;
3800 case SHM_INFO:
3801 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shm_info));
3802 if (host_to_target_shm_info(buf, &shm_info))
3803 return -TARGET_EFAULT;
3804 break;
3805 case IPC_RMID:
3806 case SHM_LOCK:
3807 case SHM_UNLOCK:
3808 ret = get_errno(shmctl(shmid, cmd, NULL));
3809 break;
3810 }
3811
3812 return ret;
3813}
3814
ee8e7614
PM		 3815#ifndef TARGET_FORCE_SHMLBA
3816/* For most architectures, SHMLBA is the same as the page size;
3817 * some architectures have larger values, in which case they should
3818 * define TARGET_FORCE_SHMLBA and provide a target_shmlba() function.
3819 * This corresponds to the kernel arch code defining __ARCH_FORCE_SHMLBA
3820 * and defining its own value for SHMLBA.
3821 *
3822 * The kernel also permits SHMLBA to be set by the architecture to a
3823 * value larger than the page size without setting __ARCH_FORCE_SHMLBA;
3824 * this means that addresses are rounded to the large size if
3825 * SHM_RND is set but addresses not aligned to that size are not rejected
3826 * as long as they are at least page-aligned. Since the only architecture
3827 * which uses this is ia64 this code doesn't provide for that oddity.
3828 */
3829static inline abi_ulong target_shmlba(CPUArchState *cpu_env)
3830{
3831 return TARGET_PAGE_SIZE;
3832}
3833#endif
3834
3835static inline abi_ulong do_shmat(CPUArchState *cpu_env,
3836 int shmid, abi_ulong shmaddr, int shmflg)
88a8c984
RV		 3837{
3838 abi_long raddr;
3839 void *host_raddr;
3840 struct shmid_ds shm_info;
3841 int i,ret;
ee8e7614 3842 abi_ulong shmlba;
88a8c984
RV		 3843
3844 /* find out the length of the shared memory segment */
3845 ret = get_errno(shmctl(shmid, IPC_STAT, &shm_info));
3846 if (is_error(ret)) {
3847 /* can't get length, bail out */
3848 return ret;
3849 }
3850
ee8e7614
PM		 3851 shmlba = target_shmlba(cpu_env);
3852
3853 if (shmaddr & (shmlba - 1)) {
3854 if (shmflg & SHM_RND) {
3855 shmaddr &= ~(shmlba - 1);
3856 } else {
3857 return -TARGET_EINVAL;
3858 }
3859 }
ebf9a363
MF		 3860 if (!guest_range_valid(shmaddr, shm_info.shm_segsz)) {
3861 return -TARGET_EINVAL;
3862 }
ee8e7614 3863
88a8c984
RV		 3864 mmap_lock();
3865
3866 if (shmaddr)
3867 host_raddr = shmat(shmid, (void *)g2h(shmaddr), shmflg);
3868 else {
3869 abi_ulong mmap_start;
3870
3871 mmap_start = mmap_find_vma(0, shm_info.shm_segsz);
3872
3873 if (mmap_start == -1) {
3874 errno = ENOMEM;
3875 host_raddr = (void *)-1;
3876 } else
3877 host_raddr = shmat(shmid, g2h(mmap_start), shmflg | SHM_REMAP);
3878 }
3879
3880 if (host_raddr == (void *)-1) {
3881 mmap_unlock();
3882 return get_errno((long)host_raddr);
3883 }
3884 raddr=h2g((unsigned long)host_raddr);
3885
3886 page_set_flags(raddr, raddr + shm_info.shm_segsz,
3887 PAGE_VALID | PAGE_READ |
3888 ((shmflg & SHM_RDONLY)? 0 : PAGE_WRITE));
3889
3890 for (i = 0; i < N_SHM_REGIONS; i++) {
b6e17875
PM		 3891 if (!shm_regions[i].in_use) {
3892 shm_regions[i].in_use = true;
88a8c984
RV		 3893 shm_regions[i].start = raddr;
3894 shm_regions[i].size = shm_info.shm_segsz;
3895 break;
3896 }
3897 }
3898
3899 mmap_unlock();
3900 return raddr;
3901
3902}
3903
3904static inline abi_long do_shmdt(abi_ulong shmaddr)
3905{
3906 int i;
3c5f6a5f
MF		 3907 abi_long rv;
3908
3909 mmap_lock();
88a8c984
RV		 3910
3911 for (i = 0; i < N_SHM_REGIONS; ++i) {
b6e17875
PM		 3912 if (shm_regions[i].in_use && shm_regions[i].start == shmaddr) {
3913 shm_regions[i].in_use = false;
e00ac249 3914 page_set_flags(shmaddr, shmaddr + shm_regions[i].size, 0);
88a8c984
RV		 3915 break;
3916 }
3917 }
3c5f6a5f 3918 rv = get_errno(shmdt(g2h(shmaddr)));
88a8c984 3919
3c5f6a5f 3920 mmap_unlock();
88a8c984 3921
3c5f6a5f 3922 return rv;
88a8c984
RV		 3923}
3924
1c54ff97 3925#ifdef TARGET_NR_ipc
53a5960a 3926/* ??? This only works with linear mappings. */
0da46a6e 3927/* do_ipc() must return target values and target errnos. */
ee8e7614
PM		 3928static abi_long do_ipc(CPUArchState *cpu_env,
3929 unsigned int call, abi_long first,
37ed0956 3930 abi_long second, abi_long third,
992f48a0 3931 abi_long ptr, abi_long fifth)
8853f86e
FB		 3932{
3933 int version;
992f48a0 3934 abi_long ret = 0;
8853f86e
FB		 3935
3936 version = call >> 16;
3937 call &= 0xffff;
3938
3939 switch (call) {
fa294816 3940 case IPCOP_semop:
e5289087 3941 ret = do_semop(first, ptr, second);
fa294816
TS		 3942 break;
3943
3944 case IPCOP_semget:
3945 ret = get_errno(semget(first, second, third));
3946 break;
3947
5d2fa8eb
TM		 3948 case IPCOP_semctl: {
3949 /* The semun argument to semctl is passed by value, so dereference the
3950 * ptr argument. */
3951 abi_ulong atptr;
37ed0956 3952 get_user_ual(atptr, ptr);
d1c002b6 3953 ret = do_semctl(first, second, third, atptr);
fa294816 3954 break;
5d2fa8eb 3955 }
d96372ef 3956
1c54ff97
AJ		 3957 case IPCOP_msgget:
3958 ret = get_errno(msgget(first, second));
3959 break;
d96372ef 3960
1c54ff97
AJ		 3961 case IPCOP_msgsnd:
3962 ret = do_msgsnd(first, ptr, second, third);
3963 break;
d96372ef 3964
1c54ff97
AJ		 3965 case IPCOP_msgctl:
3966 ret = do_msgctl(first, second, ptr);
3967 break;
d96372ef 3968
1c54ff97
AJ		 3969 case IPCOP_msgrcv:
3970 switch (version) {
3971 case 0:
3972 {
3973 struct target_ipc_kludge {
3974 abi_long msgp;
3975 abi_long msgtyp;
3976 } *tmp;
3977
3978 if (!lock_user_struct(VERIFY_READ, tmp, ptr, 1)) {
3979 ret = -TARGET_EFAULT;
3980 break;
3981 }
d96372ef 3982
79dd77de 3983 ret = do_msgrcv(first, tswapal(tmp->msgp), second, tswapal(tmp->msgtyp), third);
d96372ef 3984
1c54ff97
AJ		 3985 unlock_user_struct(tmp, ptr, 0);
3986 break;
3987 }
3988 default:
3989 ret = do_msgrcv(first, ptr, second, fifth, third);
3990 }
3991 break;
d96372ef 3992
8853f86e 3993 case IPCOP_shmat:
88a8c984
RV		 3994 switch (version) {
3995 default:
5a4a898d
FB		 3996 {
3997 abi_ulong raddr;
ee8e7614 3998 raddr = do_shmat(cpu_env, first, ptr, second);
88a8c984
RV		 3999 if (is_error(raddr))
4000 return get_errno(raddr);
2f619698 4001 if (put_user_ual(raddr, third))
5a4a898d 4002 return -TARGET_EFAULT;
88a8c984
RV		 4003 break;
4004 }
4005 case 1:
4006 ret = -TARGET_EINVAL;
4007 break;
5a4a898d 4008 }
8853f86e
FB		 4009 break;
4010 case IPCOP_shmdt:
88a8c984 4011 ret = do_shmdt(ptr);
8853f86e
FB		 4012 break;
4013
4014 case IPCOP_shmget:
4015 /* IPC_* flag values are the same on all linux platforms */
4016 ret = get_errno(shmget(first, second, third));
4017 break;
4018
4019 /* IPC_* and SHM_* command values are the same on all linux platforms */
4020 case IPCOP_shmctl:
a2926784 4021 ret = do_shmctl(first, second, ptr);
8853f86e
FB		 4022 break;
4023 default:
32407103 4024 gemu_log("Unsupported ipc call: %d (version %d)\n", call, version);
0da46a6e 4025 ret = -TARGET_ENOSYS;
8853f86e
FB		 4026 break;
4027 }
4028 return ret;
4029}
32407103 4030#endif
8853f86e 4031
31e31b8a 4032/* kernel structure types definitions */
31e31b8a 4033
001faf32 4034#define STRUCT(name, ...) STRUCT_ ## name,
31e31b8a
FB		 4035#define STRUCT_SPECIAL(name) STRUCT_ ## name,
4036enum {
4037#include "syscall_types.h"
8be656b8 4038STRUCT_MAX
31e31b8a
FB		 4039};
4040#undef STRUCT
4041#undef STRUCT_SPECIAL
4042
001faf32 4043#define STRUCT(name, ...) static const argtype struct_ ## name ## _def[] = { __VA_ARGS__, TYPE_NULL };
31e31b8a
FB		 4044#define STRUCT_SPECIAL(name)
4045#include "syscall_types.h"
4046#undef STRUCT
4047#undef STRUCT_SPECIAL
4048
d2ef05bb
PM		 4049typedef struct IOCTLEntry IOCTLEntry;
4050
4051typedef abi_long do_ioctl_fn(const IOCTLEntry *ie, uint8_t *buf_temp,
45c874eb 4052 int fd, int cmd, abi_long arg);
d2ef05bb
PM		 4053
4054struct IOCTLEntry {
9c6bf9c7 4055 int target_cmd;
2ab83ea7 4056 unsigned int host_cmd;
31e31b8a
FB		 4057 const char *name;
4058 int access;
d2ef05bb 4059 do_ioctl_fn *do_ioctl;
1a9353d2 4060 const argtype arg_type[5];
d2ef05bb 4061};
31e31b8a
FB		 4062
4063#define IOC_R 0x0001
4064#define IOC_W 0x0002
4065#define IOC_RW (IOC_R | IOC_W)
4066
4067#define MAX_STRUCT_SIZE 4096
4068
dace20dc 4069#ifdef CONFIG_FIEMAP
285da2b9
PM		 4070/* So fiemap access checks don't overflow on 32 bit systems.
4071 * This is very slightly smaller than the limit imposed by
4072 * the underlying kernel.
4073 */
4074#define FIEMAP_MAX_EXTENTS ((UINT_MAX - sizeof(struct fiemap)) \
4075 / sizeof(struct fiemap_extent))
4076
4077static abi_long do_ioctl_fs_ioc_fiemap(const IOCTLEntry *ie, uint8_t *buf_temp,
45c874eb 4078 int fd, int cmd, abi_long arg)
285da2b9
PM		 4079{
4080 /* The parameter for this ioctl is a struct fiemap followed
4081 * by an array of struct fiemap_extent whose size is set
4082 * in fiemap->fm_extent_count. The array is filled in by the
4083 * ioctl.
4084 */
4085 int target_size_in, target_size_out;
4086 struct fiemap *fm;
4087 const argtype *arg_type = ie->arg_type;
4088 const argtype extent_arg_type[] = { MK_STRUCT(STRUCT_fiemap_extent) };
4089 void *argptr, *p;
4090 abi_long ret;
4091 int i, extent_size = thunk_type_size(extent_arg_type, 0);
4092 uint32_t outbufsz;
4093 int free_fm = 0;
4094
4095 assert(arg_type[0] == TYPE_PTR);
4096 assert(ie->access == IOC_RW);
4097 arg_type++;
4098 target_size_in = thunk_type_size(arg_type, 0);
4099 argptr = lock_user(VERIFY_READ, arg, target_size_in, 1);
4100 if (!argptr) {
4101 return -TARGET_EFAULT;
4102 }
4103 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4104 unlock_user(argptr, arg, 0);
4105 fm = (struct fiemap *)buf_temp;
4106 if (fm->fm_extent_count > FIEMAP_MAX_EXTENTS) {
4107 return -TARGET_EINVAL;
4108 }
4109
4110 outbufsz = sizeof (*fm) +
4111 (sizeof(struct fiemap_extent) * fm->fm_extent_count);
4112
4113 if (outbufsz > MAX_STRUCT_SIZE) {
4114 /* We can't fit all the extents into the fixed size buffer.
4115 * Allocate one that is large enough and use it instead.
4116 */
0e173b24 4117 fm = g_try_malloc(outbufsz);
285da2b9
PM		 4118 if (!fm) {
4119 return -TARGET_ENOMEM;
4120 }
4121 memcpy(fm, buf_temp, sizeof(struct fiemap));
4122 free_fm = 1;
4123 }
49ca6f3e 4124 ret = get_errno(safe_ioctl(fd, ie->host_cmd, fm));
285da2b9
PM		 4125 if (!is_error(ret)) {
4126 target_size_out = target_size_in;
4127 /* An extent_count of 0 means we were only counting the extents
4128 * so there are no structs to copy
4129 */
4130 if (fm->fm_extent_count != 0) {
4131 target_size_out += fm->fm_mapped_extents * extent_size;
4132 }
4133 argptr = lock_user(VERIFY_WRITE, arg, target_size_out, 0);
4134 if (!argptr) {
4135 ret = -TARGET_EFAULT;
4136 } else {
4137 /* Convert the struct fiemap */
4138 thunk_convert(argptr, fm, arg_type, THUNK_TARGET);
4139 if (fm->fm_extent_count != 0) {
4140 p = argptr + target_size_in;
4141 /* ...and then all the struct fiemap_extents */
4142 for (i = 0; i < fm->fm_mapped_extents; i++) {
4143 thunk_convert(p, &fm->fm_extents[i], extent_arg_type,
4144 THUNK_TARGET);
4145 p += extent_size;
4146 }
4147 }
4148 unlock_user(argptr, arg, target_size_out);
4149 }
4150 }
4151 if (free_fm) {
0e173b24 4152 g_free(fm);
285da2b9
PM		 4153 }
4154 return ret;
4155}
dace20dc 4156#endif
285da2b9 4157
059c2f2c 4158static abi_long do_ioctl_ifconf(const IOCTLEntry *ie, uint8_t *buf_temp,
45c874eb 4159 int fd, int cmd, abi_long arg)
059c2f2c
LV		 4160{
4161 const argtype *arg_type = ie->arg_type;
4162 int target_size;
4163 void *argptr;
4164 int ret;
4165 struct ifconf *host_ifconf;
4166 uint32_t outbufsz;
4167 const argtype ifreq_arg_type[] = { MK_STRUCT(STRUCT_sockaddr_ifreq) };
4168 int target_ifreq_size;
4169 int nb_ifreq;
4170 int free_buf = 0;
4171 int i;
4172 int target_ifc_len;
4173 abi_long target_ifc_buf;
4174 int host_ifc_len;
4175 char *host_ifc_buf;
4176
4177 assert(arg_type[0] == TYPE_PTR);
4178 assert(ie->access == IOC_RW);
4179
4180 arg_type++;
4181 target_size = thunk_type_size(arg_type, 0);
4182
4183 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4184 if (!argptr)
4185 return -TARGET_EFAULT;
4186 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4187 unlock_user(argptr, arg, 0);
4188
4189 host_ifconf = (struct ifconf *)(unsigned long)buf_temp;
4190 target_ifc_len = host_ifconf->ifc_len;
4191 target_ifc_buf = (abi_long)(unsigned long)host_ifconf->ifc_buf;
4192
4193 target_ifreq_size = thunk_type_size(ifreq_arg_type, 0);
4194 nb_ifreq = target_ifc_len / target_ifreq_size;
4195 host_ifc_len = nb_ifreq * sizeof(struct ifreq);
4196
4197 outbufsz = sizeof(*host_ifconf) + host_ifc_len;
4198 if (outbufsz > MAX_STRUCT_SIZE) {
4199 /* We can't fit all the extents into the fixed size buffer.
4200 * Allocate one that is large enough and use it instead.
4201 */
4202 host_ifconf = malloc(outbufsz);
4203 if (!host_ifconf) {
4204 return -TARGET_ENOMEM;
4205 }
4206 memcpy(host_ifconf, buf_temp, sizeof(*host_ifconf));
4207 free_buf = 1;
4208 }
4209 host_ifc_buf = (char*)host_ifconf + sizeof(*host_ifconf);
4210
4211 host_ifconf->ifc_len = host_ifc_len;
4212 host_ifconf->ifc_buf = host_ifc_buf;
4213
49ca6f3e 4214 ret = get_errno(safe_ioctl(fd, ie->host_cmd, host_ifconf));
059c2f2c
LV		 4215 if (!is_error(ret)) {
4216 /* convert host ifc_len to target ifc_len */
4217
4218 nb_ifreq = host_ifconf->ifc_len / sizeof(struct ifreq);
4219 target_ifc_len = nb_ifreq * target_ifreq_size;
4220 host_ifconf->ifc_len = target_ifc_len;
4221
4222 /* restore target ifc_buf */
4223
4224 host_ifconf->ifc_buf = (char *)(unsigned long)target_ifc_buf;
4225
4226 /* copy struct ifconf to target user */
4227
4228 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
4229 if (!argptr)
4230 return -TARGET_EFAULT;
4231 thunk_convert(argptr, host_ifconf, arg_type, THUNK_TARGET);
4232 unlock_user(argptr, arg, target_size);
4233
4234 /* copy ifreq[] to target user */
4235
4236 argptr = lock_user(VERIFY_WRITE, target_ifc_buf, target_ifc_len, 0);
4237 for (i = 0; i < nb_ifreq ; i++) {
4238 thunk_convert(argptr + i * target_ifreq_size,
4239 host_ifc_buf + i * sizeof(struct ifreq),
4240 ifreq_arg_type, THUNK_TARGET);
4241 }
4242 unlock_user(argptr, target_ifc_buf, target_ifc_len);
4243 }
4244
4245 if (free_buf) {
4246 free(host_ifconf);
4247 }
4248
4249 return ret;
4250}
4251
a133367e
CT		 4252#if defined(CONFIG_USBFS)
4253#if HOST_LONG_BITS > 64
4254#error USBDEVFS thunks do not support >64 bit hosts yet.
4255#endif
4256struct live_urb {
4257 uint64_t target_urb_adr;
4258 uint64_t target_buf_adr;
4259 char *target_buf_ptr;
4260 struct usbdevfs_urb host_urb;
4261};
4262
4263static GHashTable *usbdevfs_urb_hashtable(void)
4264{
4265 static GHashTable *urb_hashtable;
4266
4267 if (!urb_hashtable) {
4268 urb_hashtable = g_hash_table_new(g_int64_hash, g_int64_equal);
4269 }
4270 return urb_hashtable;
4271}
4272
4273static void urb_hashtable_insert(struct live_urb *urb)
4274{
4275 GHashTable *urb_hashtable = usbdevfs_urb_hashtable();
4276 g_hash_table_insert(urb_hashtable, urb, urb);
4277}
4278
4279static struct live_urb *urb_hashtable_lookup(uint64_t target_urb_adr)
4280{
4281 GHashTable *urb_hashtable = usbdevfs_urb_hashtable();
4282 return g_hash_table_lookup(urb_hashtable, &target_urb_adr);
4283}
4284
4285static void urb_hashtable_remove(struct live_urb *urb)
4286{
4287 GHashTable *urb_hashtable = usbdevfs_urb_hashtable();
4288 g_hash_table_remove(urb_hashtable, urb);
4289}
4290
4291static abi_long
4292do_ioctl_usbdevfs_reapurb(const IOCTLEntry *ie, uint8_t *buf_temp,
4293 int fd, int cmd, abi_long arg)
4294{
4295 const argtype usbfsurb_arg_type[] = { MK_STRUCT(STRUCT_usbdevfs_urb) };
4296 const argtype ptrvoid_arg_type[] = { TYPE_PTRVOID, 0, 0 };
4297 struct live_urb *lurb;
4298 void *argptr;
4299 uint64_t hurb;
4300 int target_size;
4301 uintptr_t target_urb_adr;
4302 abi_long ret;
4303
4304 target_size = thunk_type_size(usbfsurb_arg_type, THUNK_TARGET);
4305
4306 memset(buf_temp, 0, sizeof(uint64_t));
4307 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
4308 if (is_error(ret)) {
4309 return ret;
4310 }
4311
4312 memcpy(&hurb, buf_temp, sizeof(uint64_t));
4313 lurb = (void *)((uintptr_t)hurb - offsetof(struct live_urb, host_urb));
4314 if (!lurb->target_urb_adr) {
4315 return -TARGET_EFAULT;
4316 }
4317 urb_hashtable_remove(lurb);
4318 unlock_user(lurb->target_buf_ptr, lurb->target_buf_adr,
4319 lurb->host_urb.buffer_length);
4320 lurb->target_buf_ptr = NULL;
4321
4322 /* restore the guest buffer pointer */
4323 lurb->host_urb.buffer = (void *)(uintptr_t)lurb->target_buf_adr;
4324
4325 /* update the guest urb struct */
4326 argptr = lock_user(VERIFY_WRITE, lurb->target_urb_adr, target_size, 0);
4327 if (!argptr) {
4328 g_free(lurb);
4329 return -TARGET_EFAULT;
4330 }
4331 thunk_convert(argptr, &lurb->host_urb, usbfsurb_arg_type, THUNK_TARGET);
4332 unlock_user(argptr, lurb->target_urb_adr, target_size);
4333
4334 target_size = thunk_type_size(ptrvoid_arg_type, THUNK_TARGET);
4335 /* write back the urb handle */
4336 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
4337 if (!argptr) {
4338 g_free(lurb);
4339 return -TARGET_EFAULT;
4340 }
4341
4342 /* GHashTable uses 64-bit keys but thunk_convert expects uintptr_t */
4343 target_urb_adr = lurb->target_urb_adr;
4344 thunk_convert(argptr, &target_urb_adr, ptrvoid_arg_type, THUNK_TARGET);
4345 unlock_user(argptr, arg, target_size);
4346
4347 g_free(lurb);
4348 return ret;
4349}
4350
4351static abi_long
4352do_ioctl_usbdevfs_discardurb(const IOCTLEntry *ie,
4353 uint8_t *buf_temp __attribute__((unused)),
4354 int fd, int cmd, abi_long arg)
4355{
4356 struct live_urb *lurb;
4357
4358 /* map target address back to host URB with metadata. */
4359 lurb = urb_hashtable_lookup(arg);
4360 if (!lurb) {
4361 return -TARGET_EFAULT;
4362 }
4363 return get_errno(safe_ioctl(fd, ie->host_cmd, &lurb->host_urb));
4364}
4365
4366static abi_long
4367do_ioctl_usbdevfs_submiturb(const IOCTLEntry *ie, uint8_t *buf_temp,
4368 int fd, int cmd, abi_long arg)
4369{
4370 const argtype *arg_type = ie->arg_type;
4371 int target_size;
4372 abi_long ret;
4373 void *argptr;
4374 int rw_dir;
4375 struct live_urb *lurb;
4376
4377 /*
4378 * each submitted URB needs to map to a unique ID for the
4379 * kernel, and that unique ID needs to be a pointer to
4380 * host memory. hence, we need to malloc for each URB.
4381 * isochronous transfers have a variable length struct.
4382 */
4383 arg_type++;
4384 target_size = thunk_type_size(arg_type, THUNK_TARGET);
4385
4386 /* construct host copy of urb and metadata */
4387 lurb = g_try_malloc0(sizeof(struct live_urb));
4388 if (!lurb) {
4389 return -TARGET_ENOMEM;
4390 }
4391
4392 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4393 if (!argptr) {
4394 g_free(lurb);
4395 return -TARGET_EFAULT;
4396 }
4397 thunk_convert(&lurb->host_urb, argptr, arg_type, THUNK_HOST);
4398 unlock_user(argptr, arg, 0);
4399
4400 lurb->target_urb_adr = arg;
4401 lurb->target_buf_adr = (uintptr_t)lurb->host_urb.buffer;
4402
4403 /* buffer space used depends on endpoint type so lock the entire buffer */
4404 /* control type urbs should check the buffer contents for true direction */
4405 rw_dir = lurb->host_urb.endpoint & USB_DIR_IN ? VERIFY_WRITE : VERIFY_READ;
4406 lurb->target_buf_ptr = lock_user(rw_dir, lurb->target_buf_adr,
4407 lurb->host_urb.buffer_length, 1);
4408 if (lurb->target_buf_ptr == NULL) {
4409 g_free(lurb);
4410 return -TARGET_EFAULT;
4411 }
4412
4413 /* update buffer pointer in host copy */
4414 lurb->host_urb.buffer = lurb->target_buf_ptr;
4415
4416 ret = get_errno(safe_ioctl(fd, ie->host_cmd, &lurb->host_urb));
4417 if (is_error(ret)) {
4418 unlock_user(lurb->target_buf_ptr, lurb->target_buf_adr, 0);
4419 g_free(lurb);
4420 } else {
4421 urb_hashtable_insert(lurb);
4422 }
4423
4424 return ret;
4425}
4426#endif /* CONFIG_USBFS */
4427
56e904ec 4428static abi_long do_ioctl_dm(const IOCTLEntry *ie, uint8_t *buf_temp, int fd,
45c874eb 4429 int cmd, abi_long arg)
56e904ec
AG		 4430{
4431 void *argptr;
4432 struct dm_ioctl *host_dm;
4433 abi_long guest_data;
4434 uint32_t guest_data_size;
4435 int target_size;
4436 const argtype *arg_type = ie->arg_type;
4437 abi_long ret;
4438 void *big_buf = NULL;
4439 char *host_data;
4440
4441 arg_type++;
4442 target_size = thunk_type_size(arg_type, 0);
4443 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4444 if (!argptr) {
4445 ret = -TARGET_EFAULT;
4446 goto out;
4447 }
4448 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4449 unlock_user(argptr, arg, 0);
4450
4451 /* buf_temp is too small, so fetch things into a bigger buffer */
4452 big_buf = g_malloc0(((struct dm_ioctl*)buf_temp)->data_size * 2);
4453 memcpy(big_buf, buf_temp, target_size);
4454 buf_temp = big_buf;
4455 host_dm = big_buf;
4456
4457 guest_data = arg + host_dm->data_start;
4458 if ((guest_data - arg) < 0) {
f9757b1d 4459 ret = -TARGET_EINVAL;
56e904ec
AG		 4460 goto out;
4461 }
4462 guest_data_size = host_dm->data_size - host_dm->data_start;
4463 host_data = (char*)host_dm + host_dm->data_start;
4464
4465 argptr = lock_user(VERIFY_READ, guest_data, guest_data_size, 1);
3211215e
PM		 4466 if (!argptr) {
4467 ret = -TARGET_EFAULT;
4468 goto out;
4469 }
4470
56e904ec
AG		 4471 switch (ie->host_cmd) {
4472 case DM_REMOVE_ALL:
4473 case DM_LIST_DEVICES:
4474 case DM_DEV_CREATE:
4475 case DM_DEV_REMOVE:
4476 case DM_DEV_SUSPEND:
4477 case DM_DEV_STATUS:
4478 case DM_DEV_WAIT:
4479 case DM_TABLE_STATUS:
4480 case DM_TABLE_CLEAR:
4481 case DM_TABLE_DEPS:
4482 case DM_LIST_VERSIONS:
4483 /* no input data */
4484 break;
4485 case DM_DEV_RENAME:
4486 case DM_DEV_SET_GEOMETRY:
4487 /* data contains only strings */
4488 memcpy(host_data, argptr, guest_data_size);
4489 break;
4490 case DM_TARGET_MSG:
4491 memcpy(host_data, argptr, guest_data_size);
4492 *(uint64_t*)host_data = tswap64(*(uint64_t*)argptr);
4493 break;
4494 case DM_TABLE_LOAD:
4495 {
4496 void *gspec = argptr;
4497 void *cur_data = host_data;
4498 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) };
4499 int spec_size = thunk_type_size(arg_type, 0);
4500 int i;
4501
4502 for (i = 0; i < host_dm->target_count; i++) {
4503 struct dm_target_spec *spec = cur_data;
4504 uint32_t next;
4505 int slen;
4506
4507 thunk_convert(spec, gspec, arg_type, THUNK_HOST);
4508 slen = strlen((char*)gspec + spec_size) + 1;
4509 next = spec->next;
4510 spec->next = sizeof(*spec) + slen;
4511 strcpy((char*)&spec[1], gspec + spec_size);
4512 gspec += next;
4513 cur_data += spec->next;
4514 }
4515 break;
4516 }
4517 default:
4518 ret = -TARGET_EINVAL;
dec0473d 4519 unlock_user(argptr, guest_data, 0);
56e904ec
AG		 4520 goto out;
4521 }
4522 unlock_user(argptr, guest_data, 0);
4523
49ca6f3e 4524 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
56e904ec
AG		 4525 if (!is_error(ret)) {
4526 guest_data = arg + host_dm->data_start;
4527 guest_data_size = host_dm->data_size - host_dm->data_start;
4528 argptr = lock_user(VERIFY_WRITE, guest_data, guest_data_size, 0);
4529 switch (ie->host_cmd) {
4530 case DM_REMOVE_ALL:
4531 case DM_DEV_CREATE:
4532 case DM_DEV_REMOVE:
4533 case DM_DEV_RENAME:
4534 case DM_DEV_SUSPEND:
4535 case DM_DEV_STATUS:
4536 case DM_TABLE_LOAD:
4537 case DM_TABLE_CLEAR:
4538 case DM_TARGET_MSG:
4539 case DM_DEV_SET_GEOMETRY:
4540 /* no return data */
4541 break;
4542 case DM_LIST_DEVICES:
4543 {
4544 struct dm_name_list *nl = (void*)host_dm + host_dm->data_start;
4545 uint32_t remaining_data = guest_data_size;
4546 void *cur_data = argptr;
4547 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_name_list) };
4548 int nl_size = 12; /* can't use thunk_size due to alignment */
4549
4550 while (1) {
4551 uint32_t next = nl->next;
4552 if (next) {
4553 nl->next = nl_size + (strlen(nl->name) + 1);
4554 }
4555 if (remaining_data < nl->next) {
4556 host_dm->flags |= DM_BUFFER_FULL_FLAG;
4557 break;
4558 }
4559 thunk_convert(cur_data, nl, arg_type, THUNK_TARGET);
4560 strcpy(cur_data + nl_size, nl->name);
4561 cur_data += nl->next;
4562 remaining_data -= nl->next;
4563 if (!next) {
4564 break;
4565 }
4566 nl = (void*)nl + next;
4567 }
4568 break;
4569 }
4570 case DM_DEV_WAIT:
4571 case DM_TABLE_STATUS:
4572 {
4573 struct dm_target_spec *spec = (void*)host_dm + host_dm->data_start;
4574 void *cur_data = argptr;
4575 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) };
4576 int spec_size = thunk_type_size(arg_type, 0);
4577 int i;
4578
4579 for (i = 0; i < host_dm->target_count; i++) {
4580 uint32_t next = spec->next;
4581 int slen = strlen((char*)&spec[1]) + 1;
4582 spec->next = (cur_data - argptr) + spec_size + slen;
4583 if (guest_data_size < spec->next) {
4584 host_dm->flags |= DM_BUFFER_FULL_FLAG;
4585 break;
4586 }
4587 thunk_convert(cur_data, spec, arg_type, THUNK_TARGET);
4588 strcpy(cur_data + spec_size, (char*)&spec[1]);
4589 cur_data = argptr + spec->next;
4590 spec = (void*)host_dm + host_dm->data_start + next;
4591 }
4592 break;
4593 }
4594 case DM_TABLE_DEPS:
4595 {
4596 void *hdata = (void*)host_dm + host_dm->data_start;
4597 int count = *(uint32_t*)hdata;
4598 uint64_t *hdev = hdata + 8;
4599 uint64_t *gdev = argptr + 8;
4600 int i;
4601
4602 *(uint32_t*)argptr = tswap32(count);
4603 for (i = 0; i < count; i++) {
4604 *gdev = tswap64(*hdev);
4605 gdev++;
4606 hdev++;
4607 }
4608 break;
4609 }
4610 case DM_LIST_VERSIONS:
4611 {
4612 struct dm_target_versions *vers = (void*)host_dm + host_dm->data_start;
4613 uint32_t remaining_data = guest_data_size;
4614 void *cur_data = argptr;
4615 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_versions) };
4616 int vers_size = thunk_type_size(arg_type, 0);
4617
4618 while (1) {
4619 uint32_t next = vers->next;
4620 if (next) {
4621 vers->next = vers_size + (strlen(vers->name) + 1);
4622 }
4623 if (remaining_data < vers->next) {
4624 host_dm->flags |= DM_BUFFER_FULL_FLAG;
4625 break;
4626 }
4627 thunk_convert(cur_data, vers, arg_type, THUNK_TARGET);
4628 strcpy(cur_data + vers_size, vers->name);
4629 cur_data += vers->next;
4630 remaining_data -= vers->next;
4631 if (!next) {
4632 break;
4633 }
4634 vers = (void*)vers + next;
4635 }
4636 break;
4637 }
4638 default:
dec0473d 4639 unlock_user(argptr, guest_data, 0);
56e904ec
AG		 4640 ret = -TARGET_EINVAL;
4641 goto out;
4642 }
4643 unlock_user(argptr, guest_data, guest_data_size);
4644
4645 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
4646 if (!argptr) {
4647 ret = -TARGET_EFAULT;
4648 goto out;
4649 }
4650 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
4651 unlock_user(argptr, arg, target_size);
4652 }
4653out:
ad11ad77 4654 g_free(big_buf);
56e904ec
AG		 4655 return ret;
4656}
4657
a59b5e35 4658static abi_long do_ioctl_blkpg(const IOCTLEntry *ie, uint8_t *buf_temp, int fd,
45c874eb 4659 int cmd, abi_long arg)
a59b5e35
AG		 4660{
4661 void *argptr;
4662 int target_size;
4663 const argtype *arg_type = ie->arg_type;
4664 const argtype part_arg_type[] = { MK_STRUCT(STRUCT_blkpg_partition) };
4665 abi_long ret;
4666
4667 struct blkpg_ioctl_arg *host_blkpg = (void*)buf_temp;
4668 struct blkpg_partition host_part;
4669
4670 /* Read and convert blkpg */
4671 arg_type++;
4672 target_size = thunk_type_size(arg_type, 0);
4673 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4674 if (!argptr) {
4675 ret = -TARGET_EFAULT;
4676 goto out;
4677 }
4678 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4679 unlock_user(argptr, arg, 0);
4680
4681 switch (host_blkpg->op) {
4682 case BLKPG_ADD_PARTITION:
4683 case BLKPG_DEL_PARTITION:
4684 /* payload is struct blkpg_partition */
4685 break;
4686 default:
4687 /* Unknown opcode */
4688 ret = -TARGET_EINVAL;
4689 goto out;
4690 }
4691
4692 /* Read and convert blkpg->data */
4693 arg = (abi_long)(uintptr_t)host_blkpg->data;
4694 target_size = thunk_type_size(part_arg_type, 0);
4695 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4696 if (!argptr) {
4697 ret = -TARGET_EFAULT;
4698 goto out;
4699 }
4700 thunk_convert(&host_part, argptr, part_arg_type, THUNK_HOST);
4701 unlock_user(argptr, arg, 0);
4702
4703 /* Swizzle the data pointer to our local copy and call! */
4704 host_blkpg->data = &host_part;
49ca6f3e 4705 ret = get_errno(safe_ioctl(fd, ie->host_cmd, host_blkpg));
a59b5e35
AG		 4706
4707out:
4708 return ret;
4709}
4710
7ff7b666 4711static abi_long do_ioctl_rt(const IOCTLEntry *ie, uint8_t *buf_temp,
45c874eb 4712 int fd, int cmd, abi_long arg)
7ff7b666
LV		 4713{
4714 const argtype *arg_type = ie->arg_type;
4715 const StructEntry *se;
4716 const argtype *field_types;
4717 const int *dst_offsets, *src_offsets;
4718 int target_size;
4719 void *argptr;
4720 abi_ulong *target_rt_dev_ptr;
4721 unsigned long *host_rt_dev_ptr;
4722 abi_long ret;
4723 int i;
4724
4725 assert(ie->access == IOC_W);
4726 assert(*arg_type == TYPE_PTR);
4727 arg_type++;
4728 assert(*arg_type == TYPE_STRUCT);
4729 target_size = thunk_type_size(arg_type, 0);
4730 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4731 if (!argptr) {
4732 return -TARGET_EFAULT;
4733 }
4734 arg_type++;
4735 assert(*arg_type == (int)STRUCT_rtentry);
4736 se = struct_entries + *arg_type++;
4737 assert(se->convert[0] == NULL);
4738 /* convert struct here to be able to catch rt_dev string */
4739 field_types = se->field_types;
4740 dst_offsets = se->field_offsets[THUNK_HOST];
4741 src_offsets = se->field_offsets[THUNK_TARGET];
4742 for (i = 0; i < se->nb_fields; i++) {
4743 if (dst_offsets[i] == offsetof(struct rtentry, rt_dev)) {
4744 assert(*field_types == TYPE_PTRVOID);
4745 target_rt_dev_ptr = (abi_ulong *)(argptr + src_offsets[i]);
4746 host_rt_dev_ptr = (unsigned long *)(buf_temp + dst_offsets[i]);
4747 if (*target_rt_dev_ptr != 0) {
4748 *host_rt_dev_ptr = (unsigned long)lock_user_string(
4749 tswapal(*target_rt_dev_ptr));
4750 if (!*host_rt_dev_ptr) {
4751 unlock_user(argptr, arg, 0);
4752 return -TARGET_EFAULT;
4753 }
4754 } else {
4755 *host_rt_dev_ptr = 0;
4756 }
4757 field_types++;
4758 continue;
4759 }
4760 field_types = thunk_convert(buf_temp + dst_offsets[i],
4761 argptr + src_offsets[i],
4762 field_types, THUNK_HOST);
4763 }
4764 unlock_user(argptr, arg, 0);
4765
49ca6f3e 4766 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
7ff7b666
LV		 4767 if (*host_rt_dev_ptr != 0) {
4768 unlock_user((void *)*host_rt_dev_ptr,
4769 *target_rt_dev_ptr, 0);
4770 }
4771 return ret;
4772}
4773
ca56f5b5 4774static abi_long do_ioctl_kdsigaccept(const IOCTLEntry *ie, uint8_t *buf_temp,
45c874eb 4775 int fd, int cmd, abi_long arg)
ca56f5b5
PB		 4776{
4777 int sig = target_to_host_signal(arg);
49ca6f3e 4778 return get_errno(safe_ioctl(fd, ie->host_cmd, sig));
ca56f5b5
PB		 4779}
4780
2b74f621
AS		 4781#ifdef TIOCGPTPEER
4782static abi_long do_ioctl_tiocgptpeer(const IOCTLEntry *ie, uint8_t *buf_temp,
4783 int fd, int cmd, abi_long arg)
4784{
4785 int flags = target_to_host_bitmask(arg, fcntl_flags_tbl);
4786 return get_errno(safe_ioctl(fd, ie->host_cmd, flags));
4787}
4788#endif
4789
9f106a75 4790static IOCTLEntry ioctl_entries[] = {
001faf32 4791#define IOCTL(cmd, access, ...) \
d2ef05bb
PM		 4792 { TARGET_ ## cmd, cmd, #cmd, access, 0, { __VA_ARGS__ } },
4793#define IOCTL_SPECIAL(cmd, access, dofn, ...) \
4794 { TARGET_ ## cmd, cmd, #cmd, access, dofn, { __VA_ARGS__ } },
8cb762fe
HD		 4795#define IOCTL_IGNORE(cmd) \
4796 { TARGET_ ## cmd, 0, #cmd },
31e31b8a
FB		 4797#include "ioctls.h"
4798 { 0, 0, },
4799};
4800
53a5960a 4801/* ??? Implement proper locking for ioctls. */
0da46a6e 4802/* do_ioctl() Must return target values and target errnos. */
45c874eb 4803static abi_long do_ioctl(int fd, int cmd, abi_long arg)
31e31b8a
FB		 4804{
4805 const IOCTLEntry *ie;
4806 const argtype *arg_type;
992f48a0 4807 abi_long ret;
31e31b8a 4808 uint8_t buf_temp[MAX_STRUCT_SIZE];
53a5960a
PB		 4809 int target_size;
4810 void *argptr;
31e31b8a
FB		 4811
4812 ie = ioctl_entries;
4813 for(;;) {
4814 if (ie->target_cmd == 0) {
32407103 4815 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd);
0da46a6e 4816 return -TARGET_ENOSYS;
31e31b8a
FB		 4817 }
4818 if (ie->target_cmd == cmd)
4819 break;
4820 ie++;
4821 }
4822 arg_type = ie->arg_type;
d2ef05bb
PM		 4823 if (ie->do_ioctl) {
4824 return ie->do_ioctl(ie, buf_temp, fd, cmd, arg);
8cb762fe
HD		 4825 } else if (!ie->host_cmd) {
4826 /* Some architectures define BSD ioctls in their headers
4827 that are not implemented in Linux. */
4828 return -TARGET_ENOSYS;
d2ef05bb
PM		 4829 }
4830
31e31b8a
FB		 4831 switch(arg_type[0]) {
4832 case TYPE_NULL:
4833 /* no argument */
49ca6f3e 4834 ret = get_errno(safe_ioctl(fd, ie->host_cmd));
31e31b8a
FB		 4835 break;
4836 case TYPE_PTRVOID:
4837 case TYPE_INT:
49ca6f3e 4838 ret = get_errno(safe_ioctl(fd, ie->host_cmd, arg));
31e31b8a
FB		 4839 break;
4840 case TYPE_PTR:
4841 arg_type++;
53a5960a 4842 target_size = thunk_type_size(arg_type, 0);
31e31b8a
FB		 4843 switch(ie->access) {
4844 case IOC_R:
49ca6f3e 4845 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
31e31b8a 4846 if (!is_error(ret)) {
579a97f7
FB		 4847 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
4848 if (!argptr)
4849 return -TARGET_EFAULT;
53a5960a
PB		 4850 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
4851 unlock_user(argptr, arg, target_size);
31e31b8a
FB		 4852 }
4853 break;
4854 case IOC_W:
579a97f7
FB		 4855 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4856 if (!argptr)
4857 return -TARGET_EFAULT;
53a5960a
PB		 4858 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4859 unlock_user(argptr, arg, 0);
49ca6f3e 4860 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
31e31b8a
FB		 4861 break;
4862 default:
4863 case IOC_RW:
579a97f7
FB		 4864 argptr = lock_user(VERIFY_READ, arg, target_size, 1);
4865 if (!argptr)
4866 return -TARGET_EFAULT;
53a5960a
PB		 4867 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
4868 unlock_user(argptr, arg, 0);
49ca6f3e 4869 ret = get_errno(safe_ioctl(fd, ie->host_cmd, buf_temp));
31e31b8a 4870 if (!is_error(ret)) {
579a97f7
FB		 4871 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
4872 if (!argptr)
4873 return -TARGET_EFAULT;
53a5960a
PB		 4874 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
4875 unlock_user(argptr, arg, target_size);
31e31b8a
FB		 4876 }
4877 break;
4878 }
4879 break;
4880 default:
32407103
JM		 4881 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n",
4882 (long)cmd, arg_type[0]);
0da46a6e 4883 ret = -TARGET_ENOSYS;
31e31b8a
FB		 4884 break;
4885 }
4886 return ret;
4887}
4888
b39bc503 4889static const bitmask_transtbl iflag_tbl[] = {
31e31b8a
FB		 4890 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
4891 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
4892 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
4893 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
4894 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
4895 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
4896 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
4897 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
4898 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
4899 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
4900 { TARGET_IXON, TARGET_IXON, IXON, IXON },
4901 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
4902 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
4903 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
4904 { 0, 0, 0, 0 }
4905};
4906
b39bc503 4907static const bitmask_transtbl oflag_tbl[] = {
31e31b8a
FB		 4908 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
4909 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
4910 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
4911 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
4912 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
4913 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
4914 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
4915 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
4916 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
4917 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
4918 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
4919 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
4920 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
4921 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
4922 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
4923 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
4924 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
4925 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
4926 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
4927 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
4928 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
4929 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
4930 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
4931 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
4932 { 0, 0, 0, 0 }
4933};
4934
b39bc503 4935static const bitmask_transtbl cflag_tbl[] = {
31e31b8a
FB		 4936 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
4937 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
4938 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
4939 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
4940 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
4941 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
4942 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
4943 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
4944 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
4945 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
4946 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
4947 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
4948 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
4949 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
4950 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
4951 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
4952 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
4953 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
4954 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
4955 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
4956 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
4957 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
4958 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
4959 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
4960 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
4961 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
4962 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
4963 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
4964 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
4965 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
4966 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
4967 { 0, 0, 0, 0 }
4968};
4969
b39bc503 4970static const bitmask_transtbl lflag_tbl[] = {
31e31b8a
FB		 4971 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
4972 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
4973 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
4974 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
4975 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
4976 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
4977 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
4978 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
4979 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
4980 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
4981 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
4982 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
4983 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
4984 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
4985 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
4986 { 0, 0, 0, 0 }
4987};
4988
4989static void target_to_host_termios (void *dst, const void *src)
4990{
4991 struct host_termios *host = dst;
4992 const struct target_termios *target = src;
3b46e624 4993
5fafdf24 4994 host->c_iflag =
31e31b8a 4995 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
5fafdf24 4996 host->c_oflag =
31e31b8a 4997 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
5fafdf24 4998 host->c_cflag =
31e31b8a 4999 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
5fafdf24 5000 host->c_lflag =
31e31b8a
FB		 5001 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
5002 host->c_line = target->c_line;
3b46e624 5003
44607123 5004 memset(host->c_cc, 0, sizeof(host->c_cc));
5fafdf24
TS		 5005 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
5006 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
3b46e624 5007 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
5fafdf24 5008 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
3b46e624 5009 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
5fafdf24 5010 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
3b46e624 5011 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
5fafdf24 5012 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
3b46e624 5013 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
5fafdf24
TS		 5014 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
5015 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
3b46e624
TS		 5016 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
5017 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
5018 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
5019 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
5020 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
5fafdf24 5021 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
31e31b8a 5022}
3b46e624 5023
31e31b8a
FB		 5024static void host_to_target_termios (void *dst, const void *src)
5025{
5026 struct target_termios *target = dst;
5027 const struct host_termios *host = src;
5028
5fafdf24 5029 target->c_iflag =
31e31b8a 5030 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
5fafdf24 5031 target->c_oflag =
31e31b8a 5032 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
5fafdf24 5033 target->c_cflag =
31e31b8a 5034 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
5fafdf24 5035 target->c_lflag =
31e31b8a
FB		 5036 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
5037 target->c_line = host->c_line;
3b46e624 5038
44607123 5039 memset(target->c_cc, 0, sizeof(target->c_cc));
31e31b8a
FB		 5040 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
5041 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
5042 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
5043 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
5044 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
5045 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
5046 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
5047 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
5048 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
5049 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
5050 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
5051 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
5052 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
5053 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
5054 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
5055 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
5056 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
5057}
5058
8e853dc7 5059static const StructEntry struct_termios_def = {
31e31b8a
FB		 5060 .convert = { host_to_target_termios, target_to_host_termios },
5061 .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
5062 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
5063};
5064
5286db75 5065static bitmask_transtbl mmap_flags_tbl[] = {
541e1690
HD		 5066 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
5067 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
5068 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
5069 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS,
5070 MAP_ANONYMOUS, MAP_ANONYMOUS },
5071 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN,
5072 MAP_GROWSDOWN, MAP_GROWSDOWN },
5073 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE,
5074 MAP_DENYWRITE, MAP_DENYWRITE },
5075 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE,
5076 MAP_EXECUTABLE, MAP_EXECUTABLE },
5077 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
5078 { TARGET_MAP_NORESERVE, TARGET_MAP_NORESERVE,
5079 MAP_NORESERVE, MAP_NORESERVE },
5080 { TARGET_MAP_HUGETLB, TARGET_MAP_HUGETLB, MAP_HUGETLB, MAP_HUGETLB },
5081 /* MAP_STACK had been ignored by the kernel for quite some time.
5082 Recognize it for the target insofar as we do not want to pass
5083 it through to the host. */
5084 { TARGET_MAP_STACK, TARGET_MAP_STACK, 0, 0 },
5085 { 0, 0, 0, 0 }
5286db75
FB		 5086};
5087
2ab83ea7 5088#if defined(TARGET_I386)
6dbad63e
FB		 5089
5090/* NOTE: there is really one LDT for all the threads */
b1d8e52e 5091static uint8_t *ldt_table;
6dbad63e 5092
03acab66 5093static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount)
6dbad63e
FB		 5094{
5095 int size;
53a5960a 5096 void *p;
6dbad63e
FB		 5097
5098 if (!ldt_table)
5099 return 0;
5100 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
5101 if (size > bytecount)
5102 size = bytecount;
579a97f7
FB		 5103 p = lock_user(VERIFY_WRITE, ptr, size, 0);
5104 if (!p)
03acab66 5105 return -TARGET_EFAULT;
579a97f7 5106 /* ??? Should this by byteswapped? */
53a5960a
PB		 5107 memcpy(p, ldt_table, size);
5108 unlock_user(p, ptr, size);
6dbad63e
FB		 5109 return size;
5110}
5111
5112/* XXX: add locking support */
03acab66
FB		 5113static abi_long write_ldt(CPUX86State *env,
5114 abi_ulong ptr, unsigned long bytecount, int oldmode)
6dbad63e
FB		 5115{
5116 struct target_modify_ldt_ldt_s ldt_info;
53a5960a 5117 struct target_modify_ldt_ldt_s *target_ldt_info;
6dbad63e 5118 int seg_32bit, contents, read_exec_only, limit_in_pages;
8d18e893 5119 int seg_not_present, useable, lm;
6dbad63e
FB		 5120 uint32_t *lp, entry_1, entry_2;
5121
5122 if (bytecount != sizeof(ldt_info))
03acab66 5123 return -TARGET_EINVAL;
579a97f7 5124 if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1))
03acab66 5125 return -TARGET_EFAULT;
53a5960a 5126 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
cbb21eed 5127 ldt_info.base_addr = tswapal(target_ldt_info->base_addr);
53a5960a
PB		 5128 ldt_info.limit = tswap32(target_ldt_info->limit);
5129 ldt_info.flags = tswap32(target_ldt_info->flags);
5130 unlock_user_struct(target_ldt_info, ptr, 0);
3b46e624 5131
6dbad63e 5132 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
03acab66 5133 return -TARGET_EINVAL;
6dbad63e
FB		 5134 seg_32bit = ldt_info.flags & 1;
5135 contents = (ldt_info.flags >> 1) & 3;
5136 read_exec_only = (ldt_info.flags >> 3) & 1;
5137 limit_in_pages = (ldt_info.flags >> 4) & 1;
5138 seg_not_present = (ldt_info.flags >> 5) & 1;
5139 useable = (ldt_info.flags >> 6) & 1;
8d18e893
FB		 5140#ifdef TARGET_ABI32
5141 lm = 0;
5142#else
5143 lm = (ldt_info.flags >> 7) & 1;
5144#endif
6dbad63e
FB		 5145 if (contents == 3) {
5146 if (oldmode)
03acab66 5147 return -TARGET_EINVAL;
6dbad63e 5148 if (seg_not_present == 0)
03acab66 5149 return -TARGET_EINVAL;
6dbad63e
FB		 5150 }
5151 /* allocate the LDT */
5152 if (!ldt_table) {
e441570f
AZ		 5153 env->ldt.base = target_mmap(0,
5154 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE,
5155 PROT_READ|PROT_WRITE,
5156 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
5157 if (env->ldt.base == -1)
03acab66 5158 return -TARGET_ENOMEM;
e441570f
AZ		 5159 memset(g2h(env->ldt.base), 0,
5160 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
6dbad63e 5161 env->ldt.limit = 0xffff;
e441570f 5162 ldt_table = g2h(env->ldt.base);
6dbad63e
FB		 5163 }
5164
5165 /* NOTE: same code as Linux kernel */
5166 /* Allow LDTs to be cleared by the user. */
5167 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
5168 if (oldmode ||
5169 (contents == 0 &&
5170 read_exec_only == 1 &&
5171 seg_32bit == 0 &&
5172 limit_in_pages == 0 &&
5173 seg_not_present == 1 &&
5174 useable == 0 )) {
5175 entry_1 = 0;
5176 entry_2 = 0;
5177 goto install;
5178 }
5179 }
3b46e624 5180
6dbad63e
FB		 5181 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
5182 (ldt_info.limit & 0x0ffff);
5183 entry_2 = (ldt_info.base_addr & 0xff000000) |
5184 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
5185 (ldt_info.limit & 0xf0000) |
5186 ((read_exec_only ^ 1) << 9) |
5187 (contents << 10) |
5188 ((seg_not_present ^ 1) << 15) |
5189 (seg_32bit << 22) |
5190 (limit_in_pages << 23) |
8d18e893 5191 (lm << 21) |
6dbad63e
FB		 5192 0x7000;
5193 if (!oldmode)
5194 entry_2 |= (useable << 20);
14ae3ba7 5195
6dbad63e
FB		 5196 /* Install the new entry ... */
5197install:
5198 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
5199 lp[0] = tswap32(entry_1);
5200 lp[1] = tswap32(entry_2);
5201 return 0;
5202}
5203
5204/* specific and weird i386 syscalls */
8fcd3692
BS		 5205static abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr,
5206 unsigned long bytecount)
6dbad63e 5207{
03acab66 5208 abi_long ret;
3b46e624 5209
6dbad63e
FB		 5210 switch (func) {
5211 case 0:
5212 ret = read_ldt(ptr, bytecount);
5213 break;
5214 case 1:
5215 ret = write_ldt(env, ptr, bytecount, 1);
5216 break;
5217 case 0x11:
5218 ret = write_ldt(env, ptr, bytecount, 0);
5219 break;
03acab66
FB		 5220 default:
5221 ret = -TARGET_ENOSYS;
5222 break;
6dbad63e
FB		 5223 }
5224 return ret;
5225}
1b6b029e 5226
4583f589 5227#if defined(TARGET_I386) && defined(TARGET_ABI32)
bc22eb44 5228abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr)
8d18e893
FB		 5229{
5230 uint64_t *gdt_table = g2h(env->gdt.base);
5231 struct target_modify_ldt_ldt_s ldt_info;
5232 struct target_modify_ldt_ldt_s *target_ldt_info;
5233 int seg_32bit, contents, read_exec_only, limit_in_pages;
5234 int seg_not_present, useable, lm;
5235 uint32_t *lp, entry_1, entry_2;
5236 int i;
5237
5238 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
5239 if (!target_ldt_info)
5240 return -TARGET_EFAULT;
5241 ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
cbb21eed 5242 ldt_info.base_addr = tswapal(target_ldt_info->base_addr);
8d18e893
FB		 5243 ldt_info.limit = tswap32(target_ldt_info->limit);
5244 ldt_info.flags = tswap32(target_ldt_info->flags);
5245 if (ldt_info.entry_number == -1) {
5246 for (i=TARGET_GDT_ENTRY_TLS_MIN; i<=TARGET_GDT_ENTRY_TLS_MAX; i++) {
5247 if (gdt_table[i] == 0) {
5248 ldt_info.entry_number = i;
5249 target_ldt_info->entry_number = tswap32(i);
5250 break;
5251 }
5252 }
5253 }
5254 unlock_user_struct(target_ldt_info, ptr, 1);
5255
5256 if (ldt_info.entry_number < TARGET_GDT_ENTRY_TLS_MIN ||
5257 ldt_info.entry_number > TARGET_GDT_ENTRY_TLS_MAX)
5258 return -TARGET_EINVAL;
5259 seg_32bit = ldt_info.flags & 1;
5260 contents = (ldt_info.flags >> 1) & 3;
5261 read_exec_only = (ldt_info.flags >> 3) & 1;
5262 limit_in_pages = (ldt_info.flags >> 4) & 1;
5263 seg_not_present = (ldt_info.flags >> 5) & 1;
5264 useable = (ldt_info.flags >> 6) & 1;
5265#ifdef TARGET_ABI32
5266 lm = 0;
5267#else
5268 lm = (ldt_info.flags >> 7) & 1;
5269#endif
5270
5271 if (contents == 3) {
5272 if (seg_not_present == 0)
5273 return -TARGET_EINVAL;
5274 }
5275
5276 /* NOTE: same code as Linux kernel */
5277 /* Allow LDTs to be cleared by the user. */
5278 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
5279 if ((contents == 0 &&
5280 read_exec_only == 1 &&
5281 seg_32bit == 0 &&
5282 limit_in_pages == 0 &&
5283 seg_not_present == 1 &&
5284 useable == 0 )) {
5285 entry_1 = 0;
5286 entry_2 = 0;
5287 goto install;
5288 }
5289 }
5290
5291 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
5292 (ldt_info.limit & 0x0ffff);
5293 entry_2 = (ldt_info.base_addr & 0xff000000) |
5294 ((ldt_info.base_addr & 0x00ff0000) >> 16) |
5295 (ldt_info.limit & 0xf0000) |
5296 ((read_exec_only ^ 1) << 9) |
5297 (contents << 10) |
5298 ((seg_not_present ^ 1) << 15) |
5299 (seg_32bit << 22) |
5300 (limit_in_pages << 23) |
5301 (useable << 20) |
5302 (lm << 21) |
5303 0x7000;
5304
5305 /* Install the new entry ... */
5306install:
5307 lp = (uint32_t *)(gdt_table + ldt_info.entry_number);
5308 lp[0] = tswap32(entry_1);
5309 lp[1] = tswap32(entry_2);
5310 return 0;
5311}
5312
8fcd3692 5313static abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr)
8d18e893
FB		 5314{
5315 struct target_modify_ldt_ldt_s *target_ldt_info;
5316 uint64_t *gdt_table = g2h(env->gdt.base);
5317 uint32_t base_addr, limit, flags;
5318 int seg_32bit, contents, read_exec_only, limit_in_pages, idx;
5319 int seg_not_present, useable, lm;
5320 uint32_t *lp, entry_1, entry_2;
5321
5322 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
5323 if (!target_ldt_info)
5324 return -TARGET_EFAULT;
5325 idx = tswap32(target_ldt_info->entry_number);
5326 if (idx < TARGET_GDT_ENTRY_TLS_MIN ||
5327 idx > TARGET_GDT_ENTRY_TLS_MAX) {
5328 unlock_user_struct(target_ldt_info, ptr, 1);
5329 return -TARGET_EINVAL;
5330 }
5331 lp = (uint32_t *)(gdt_table + idx);
5332 entry_1 = tswap32(lp[0]);
5333 entry_2 = tswap32(lp[1]);
5334
5335 read_exec_only = ((entry_2 >> 9) & 1) ^ 1;
5336 contents = (entry_2 >> 10) & 3;
5337 seg_not_present = ((entry_2 >> 15) & 1) ^ 1;
5338 seg_32bit = (entry_2 >> 22) & 1;
5339 limit_in_pages = (entry_2 >> 23) & 1;
5340 useable = (entry_2 >> 20) & 1;
5341#ifdef TARGET_ABI32
5342 lm = 0;
5343#else
5344 lm = (entry_2 >> 21) & 1;
5345#endif
5346 flags = (seg_32bit << 0) | (contents << 1) |
5347 (read_exec_only << 3) | (limit_in_pages << 4) |
5348 (seg_not_present << 5) | (useable << 6) | (lm << 7);
5349 limit = (entry_1 & 0xffff) | (entry_2 & 0xf0000);
5350 base_addr = (entry_1 >> 16) |
5351 (entry_2 & 0xff000000) |
5352 ((entry_2 & 0xff) << 16);
cbb21eed 5353 target_ldt_info->base_addr = tswapal(base_addr);
8d18e893
FB		 5354 target_ldt_info->limit = tswap32(limit);
5355 target_ldt_info->flags = tswap32(flags);
5356 unlock_user_struct(target_ldt_info, ptr, 1);
5357 return 0;
5358}
4583f589 5359#endif /* TARGET_I386 && TARGET_ABI32 */
8d18e893 5360
d2fd1af7 5361#ifndef TARGET_ABI32
2667e71c 5362abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr)
d2fd1af7 5363{
1add8698 5364 abi_long ret = 0;
d2fd1af7
FB		 5365 abi_ulong val;
5366 int idx;
1add8698 5367
d2fd1af7
FB		 5368 switch(code) {
5369 case TARGET_ARCH_SET_GS:
5370 case TARGET_ARCH_SET_FS:
5371 if (code == TARGET_ARCH_SET_GS)
5372 idx = R_GS;
5373 else
5374 idx = R_FS;
5375 cpu_x86_load_seg(env, idx, 0);
5376 env->segs[idx].base = addr;
5377 break;
5378 case TARGET_ARCH_GET_GS:
5379 case TARGET_ARCH_GET_FS:
5380 if (code == TARGET_ARCH_GET_GS)
5381 idx = R_GS;
5382 else
5383 idx = R_FS;
5384 val = env->segs[idx].base;
5385 if (put_user(val, addr, abi_ulong))
1add8698 5386 ret = -TARGET_EFAULT;
d2fd1af7
FB		 5387 break;
5388 default:
5389 ret = -TARGET_EINVAL;
5390 break;
5391 }
1add8698 5392 return ret;
d2fd1af7
FB		 5393}
5394#endif
5395
2ab83ea7
FB		 5396#endif /* defined(TARGET_I386) */
5397
05098a93 5398#define NEW_STACK_SIZE 0x40000
d865bab5 5399
d865bab5
PB		 5400
5401static pthread_mutex_t clone_lock = PTHREAD_MUTEX_INITIALIZER;
5402typedef struct {
9349b4f9 5403 CPUArchState *env;
d865bab5
PB		 5404 pthread_mutex_t mutex;
5405 pthread_cond_t cond;
5406 pthread_t thread;
5407 uint32_t tid;
5408 abi_ulong child_tidptr;
5409 abi_ulong parent_tidptr;
5410 sigset_t sigmask;
5411} new_thread_info;
5412
5413static void *clone_func(void *arg)
5414{
5415 new_thread_info *info = arg;
9349b4f9 5416 CPUArchState *env;
0d34282f 5417 CPUState *cpu;
edf8e2af 5418 TaskState *ts;
d865bab5 5419
70903763 5420 rcu_register_thread();
3468b59e 5421 tcg_register_thread();
d865bab5 5422 env = info->env;
0d34282f 5423 cpu = ENV_GET_CPU(env);
a2247f8e 5424 thread_cpu = cpu;
0429a971 5425 ts = (TaskState *)cpu->opaque;
d865bab5 5426 info->tid = gettid();
edf8e2af 5427 task_settid(ts);
d865bab5
PB		 5428 if (info->child_tidptr)
5429 put_user_u32(info->tid, info->child_tidptr);
5430 if (info->parent_tidptr)
5431 put_user_u32(info->tid, info->parent_tidptr);
5432 /* Enable signals. */
5433 sigprocmask(SIG_SETMASK, &info->sigmask, NULL);
5434 /* Signal to the parent that we're ready. */
5435 pthread_mutex_lock(&info->mutex);
5436 pthread_cond_broadcast(&info->cond);
5437 pthread_mutex_unlock(&info->mutex);
a4dd3d51 5438 /* Wait until the parent has finished initializing the tls state. */
d865bab5
PB		 5439 pthread_mutex_lock(&clone_lock);
5440 pthread_mutex_unlock(&clone_lock);
5441 cpu_loop(env);
5442 /* never exits */
5443 return NULL;
5444}
1b6b029e 5445
0da46a6e
TS		 5446/* do_fork() Must return host values and target errnos (unlike most
5447 do_*() functions). */
9349b4f9 5448static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp,
d865bab5
PB		 5449 abi_ulong parent_tidptr, target_ulong newtls,
5450 abi_ulong child_tidptr)
1b6b029e 5451{
0429a971 5452 CPUState *cpu = ENV_GET_CPU(env);
1b6b029e 5453 int ret;
5cd4393b 5454 TaskState *ts;
0429a971 5455 CPUState *new_cpu;
9349b4f9 5456 CPUArchState *new_env;
d865bab5 5457 sigset_t sigmask;
3b46e624 5458
5ea2fc84
PM		 5459 flags &= ~CLONE_IGNORED_FLAGS;
5460
436d124b
AZ		 5461 /* Emulate vfork() with fork() */
5462 if (flags & CLONE_VFORK)
5463 flags &= ~(CLONE_VFORK | CLONE_VM);
5464
1b6b029e 5465 if (flags & CLONE_VM) {
0429a971 5466 TaskState *parent_ts = (TaskState *)cpu->opaque;
d865bab5
PB		 5467 new_thread_info info;
5468 pthread_attr_t attr;
24cb36a6 5469
5ea2fc84
PM		 5470 if (((flags & CLONE_THREAD_FLAGS) != CLONE_THREAD_FLAGS) ||
5471 (flags & CLONE_INVALID_THREAD_FLAGS)) {
5472 return -TARGET_EINVAL;
5473 }
5474
c78d65e8 5475 ts = g_new0(TaskState, 1);
624f7979 5476 init_task_state(ts);
73a988d9
MF		 5477
5478 /* Grab a mutex so that thread setup appears atomic. */
5479 pthread_mutex_lock(&clone_lock);
5480
1b6b029e 5481 /* we create a new CPU instance. */
c5be9f08 5482 new_env = cpu_copy(env);
6e68e076
PB		 5483 /* Init regs that differ from the parent. */
5484 cpu_clone_regs(new_env, newsp);
0429a971
AF		 5485 new_cpu = ENV_GET_CPU(new_env);
5486 new_cpu->opaque = ts;
edf8e2af
MW		 5487 ts->bprm = parent_ts->bprm;
5488 ts->info = parent_ts->info;
3d3efba0 5489 ts->signal_mask = parent_ts->signal_mask;
d865bab5 5490
7cfbd386 5491 if (flags & CLONE_CHILD_CLEARTID) {
c2764719
PB		 5492 ts->child_tidptr = child_tidptr;
5493 }
5494
7cfbd386 5495 if (flags & CLONE_SETTLS) {
d865bab5 5496 cpu_set_tls (new_env, newtls);
7cfbd386 5497 }
d865bab5 5498
d865bab5
PB		 5499 memset(&info, 0, sizeof(info));
5500 pthread_mutex_init(&info.mutex, NULL);
5501 pthread_mutex_lock(&info.mutex);
5502 pthread_cond_init(&info.cond, NULL);
5503 info.env = new_env;
7cfbd386 5504 if (flags & CLONE_CHILD_SETTID) {
d865bab5 5505 info.child_tidptr = child_tidptr;
7cfbd386
PM		 5506 }
5507 if (flags & CLONE_PARENT_SETTID) {
d865bab5 5508 info.parent_tidptr = parent_tidptr;
7cfbd386 5509 }
d865bab5
PB		 5510
5511 ret = pthread_attr_init(&attr);
48e15fc2
NF		 5512 ret = pthread_attr_setstacksize(&attr, NEW_STACK_SIZE);
5513 ret = pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
d865bab5
PB		 5514 /* It is not safe to deliver signals until the child has finished
5515 initializing, so temporarily block all signals. */
5516 sigfillset(&sigmask);
5517 sigprocmask(SIG_BLOCK, &sigmask, &info.sigmask);
5518
b67cb68b
AB		 5519 /* If this is our first additional thread, we need to ensure we
5520 * generate code for parallel execution and flush old translations.
5521 */
5522 if (!parallel_cpus) {
5523 parallel_cpus = true;
5524 tb_flush(cpu);
5525 }
5526
d865bab5 5527 ret = pthread_create(&info.thread, &attr, clone_func, &info);
c2764719 5528 /* TODO: Free new CPU state if thread creation failed. */
d865bab5
PB		 5529
5530 sigprocmask(SIG_SETMASK, &info.sigmask, NULL);
5531 pthread_attr_destroy(&attr);
5532 if (ret == 0) {
5533 /* Wait for the child to initialize. */
5534 pthread_cond_wait(&info.cond, &info.mutex);
5535 ret = info.tid;
d865bab5
PB		 5536 } else {
5537 ret = -1;
5538 }
5539 pthread_mutex_unlock(&info.mutex);
5540 pthread_cond_destroy(&info.cond);
5541 pthread_mutex_destroy(&info.mutex);
5542 pthread_mutex_unlock(&clone_lock);
1b6b029e
FB		 5543 } else {
5544 /* if no CLONE_VM, we consider it is a fork */
5ea2fc84
PM		 5545 if (flags & CLONE_INVALID_FORK_FLAGS) {
5546 return -TARGET_EINVAL;
5547 }
5548
5549 /* We can't support custom termination signals */
5550 if ((flags & CSIGNAL) != TARGET_SIGCHLD) {
93b4eff8
TB		 5551 return -TARGET_EINVAL;
5552 }
7d92d34e
TB		 5553
5554 if (block_signals()) {
5555 return -TARGET_ERESTARTSYS;
5556 }
5557
d865bab5 5558 fork_start();
1b6b029e 5559 ret = fork();
d865bab5 5560 if (ret == 0) {
2b1319c8 5561 /* Child Process. */
d865bab5
PB		 5562 cpu_clone_regs(env, newsp);
5563 fork_end(1);
2b1319c8
AJ		 5564 /* There is a race condition here. The parent process could
5565 theoretically read the TID in the child process before the child
5566 tid is set. This would require using either ptrace
5567 (not implemented) or having *_tidptr to point at a shared memory
5568 mapping. We can't repeat the spinlock hack used above because
5569 the child process gets its own copy of the lock. */
d865bab5
PB		 5570 if (flags & CLONE_CHILD_SETTID)
5571 put_user_u32(gettid(), child_tidptr);
5572 if (flags & CLONE_PARENT_SETTID)
5573 put_user_u32(gettid(), parent_tidptr);
0429a971 5574 ts = (TaskState *)cpu->opaque;
d865bab5
PB		 5575 if (flags & CLONE_SETTLS)
5576 cpu_set_tls (env, newtls);
c2764719
PB		 5577 if (flags & CLONE_CHILD_CLEARTID)
5578 ts->child_tidptr = child_tidptr;
d865bab5
PB		 5579 } else {
5580 fork_end(0);
5581 }
1b6b029e
FB		 5582 }
5583 return ret;
5584}
5585
5f106811
APR		 5586/* warning : doesn't handle linux specific flags... */
5587static int target_to_host_fcntl_cmd(int cmd)
5588{
4a545761
SB		 5589 int ret;
5590
5f106811 5591 switch(cmd) {
4a545761
SB		 5592 case TARGET_F_DUPFD:
5593 case TARGET_F_GETFD:
5594 case TARGET_F_SETFD:
5595 case TARGET_F_GETFL:
5596 case TARGET_F_SETFL:
5597 ret = cmd;
5598 break;
5599 case TARGET_F_GETLK:
5600 ret = F_GETLK64;
5601 break;
5602 case TARGET_F_SETLK:
5603 ret = F_SETLK64;
5604 break;
5605 case TARGET_F_SETLKW:
5606 ret = F_SETLKW64;
5607 break;
5608 case TARGET_F_GETOWN:
5609 ret = F_GETOWN;
5610 break;
5611 case TARGET_F_SETOWN:
5612 ret = F_SETOWN;
5613 break;
5614 case TARGET_F_GETSIG:
5615 ret = F_GETSIG;
5616 break;
5617 case TARGET_F_SETSIG:
5618 ret = F_SETSIG;
5619 break;
5f106811 5620#if TARGET_ABI_BITS == 32
4a545761
SB		 5621 case TARGET_F_GETLK64:
5622 ret = F_GETLK64;
5623 break;
5624 case TARGET_F_SETLK64:
5625 ret = F_SETLK64;
5626 break;
5627 case TARGET_F_SETLKW64:
5628 ret = F_SETLKW64;
5629 break;
5f106811 5630#endif
4a545761
SB		 5631 case TARGET_F_SETLEASE:
5632 ret = F_SETLEASE;
5633 break;
5634 case TARGET_F_GETLEASE:
5635 ret = F_GETLEASE;
5636 break;
fbd5de9b 5637#ifdef F_DUPFD_CLOEXEC
4a545761
SB		 5638 case TARGET_F_DUPFD_CLOEXEC:
5639 ret = F_DUPFD_CLOEXEC;
5640 break;
fbd5de9b 5641#endif
4a545761
SB		 5642 case TARGET_F_NOTIFY:
5643 ret = F_NOTIFY;
5644 break;
8d5d3004 5645#ifdef F_GETOWN_EX
4a545761
SB		 5646 case TARGET_F_GETOWN_EX:
5647 ret = F_GETOWN_EX;
5648 break;
8d5d3004
AS		 5649#endif
5650#ifdef F_SETOWN_EX
4a545761
SB		 5651 case TARGET_F_SETOWN_EX:
5652 ret = F_SETOWN_EX;
5653 break;
8d5d3004 5654#endif
ddf31aa8 5655#ifdef F_SETPIPE_SZ
4a545761
SB		 5656 case TARGET_F_SETPIPE_SZ:
5657 ret = F_SETPIPE_SZ;
5658 break;
5659 case TARGET_F_GETPIPE_SZ:
5660 ret = F_GETPIPE_SZ;
5661 break;
ddf31aa8 5662#endif
4a545761
SB		 5663 default:
5664 ret = -TARGET_EINVAL;
5665 break;
5666 }
5667
5668#if defined(__powerpc64__)
5669 /* On PPC64, glibc headers has the F_*LK* defined to 12, 13 and 14 and
5670 * is not supported by kernel. The glibc fcntl call actually adjusts
5671 * them to 5, 6 and 7 before making the syscall(). Since we make the
5672 * syscall directly, adjust to what is supported by the kernel.
5673 */
5674 if (ret >= F_GETLK64 && ret <= F_SETLKW64) {
5675 ret -= F_GETLK64 - 5;
5f106811 5676 }
4a545761
SB		 5677#endif
5678
5679 return ret;
5f106811
APR		 5680}
5681
ae68ad9f
LV		 5682#define FLOCK_TRANSTBL \
5683 switch (type) { \
5684 TRANSTBL_CONVERT(F_RDLCK); \
5685 TRANSTBL_CONVERT(F_WRLCK); \
5686 TRANSTBL_CONVERT(F_UNLCK); \
5687 TRANSTBL_CONVERT(F_EXLCK); \
5688 TRANSTBL_CONVERT(F_SHLCK); \
5689 }
5690
5691static int target_to_host_flock(int type)
5692{
5693#define TRANSTBL_CONVERT(a) case TARGET_##a: return a
5694 FLOCK_TRANSTBL
5695#undef TRANSTBL_CONVERT
5696 return -TARGET_EINVAL;
5697}
5698
5699static int host_to_target_flock(int type)
5700{
5701#define TRANSTBL_CONVERT(a) case a: return TARGET_##a
5702 FLOCK_TRANSTBL
5703#undef TRANSTBL_CONVERT
5704 /* if we don't know how to convert the value coming
5705 * from the host we copy to the target field as-is
5706 */
5707 return type;
5708}
2ba7f730 5709
213d3e9e
PM		 5710static inline abi_long copy_from_user_flock(struct flock64 *fl,
5711 abi_ulong target_flock_addr)
7775e9ec 5712{
53a5960a 5713 struct target_flock *target_fl;
ae68ad9f 5714 int l_type;
213d3e9e
PM		 5715
5716 if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
5717 return -TARGET_EFAULT;
5718 }
5719
5720 __get_user(l_type, &target_fl->l_type);
ae68ad9f
LV		 5721 l_type = target_to_host_flock(l_type);
5722 if (l_type < 0) {
5723 return l_type;
5724 }
5725 fl->l_type = l_type;
213d3e9e
PM		 5726 __get_user(fl->l_whence, &target_fl->l_whence);
5727 __get_user(fl->l_start, &target_fl->l_start);
5728 __get_user(fl->l_len, &target_fl->l_len);
5729 __get_user(fl->l_pid, &target_fl->l_pid);
5730 unlock_user_struct(target_fl, target_flock_addr, 0);
5731 return 0;
5732}
5733
5734static inline abi_long copy_to_user_flock(abi_ulong target_flock_addr,
5735 const struct flock64 *fl)
5736{
5737 struct target_flock *target_fl;
5738 short l_type;
5739
5740 if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
5741 return -TARGET_EFAULT;
5742 }
5743
ae68ad9f 5744 l_type = host_to_target_flock(fl->l_type);
213d3e9e
PM		 5745 __put_user(l_type, &target_fl->l_type);
5746 __put_user(fl->l_whence, &target_fl->l_whence);
5747 __put_user(fl->l_start, &target_fl->l_start);
5748 __put_user(fl->l_len, &target_fl->l_len);
5749 __put_user(fl->l_pid, &target_fl->l_pid);
5750 unlock_user_struct(target_fl, target_flock_addr, 1);
5751 return 0;
5752}
5753
5754typedef abi_long from_flock64_fn(struct flock64 *fl, abi_ulong target_addr);
5755typedef abi_long to_flock64_fn(abi_ulong target_addr, const struct flock64 *fl);
5756
5757#if defined(TARGET_ARM) && TARGET_ABI_BITS == 32
7f254c5c 5758static inline abi_long copy_from_user_oabi_flock64(struct flock64 *fl,
213d3e9e
PM		 5759 abi_ulong target_flock_addr)
5760{
7f254c5c 5761 struct target_oabi_flock64 *target_fl;
ae68ad9f 5762 int l_type;
213d3e9e
PM		 5763
5764 if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
5765 return -TARGET_EFAULT;
5766 }
5767
5768 __get_user(l_type, &target_fl->l_type);
ae68ad9f
LV		 5769 l_type = target_to_host_flock(l_type);
5770 if (l_type < 0) {
5771 return l_type;
5772 }
5773 fl->l_type = l_type;
213d3e9e
PM		 5774 __get_user(fl->l_whence, &target_fl->l_whence);
5775 __get_user(fl->l_start, &target_fl->l_start);
5776 __get_user(fl->l_len, &target_fl->l_len);
5777 __get_user(fl->l_pid, &target_fl->l_pid);
5778 unlock_user_struct(target_fl, target_flock_addr, 0);
5779 return 0;
5780}
5781
7f254c5c 5782static inline abi_long copy_to_user_oabi_flock64(abi_ulong target_flock_addr,
213d3e9e
PM		 5783 const struct flock64 *fl)
5784{
7f254c5c 5785 struct target_oabi_flock64 *target_fl;
213d3e9e
PM		 5786 short l_type;
5787
5788 if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
5789 return -TARGET_EFAULT;
5790 }
5791
ae68ad9f 5792 l_type = host_to_target_flock(fl->l_type);
213d3e9e
PM		 5793 __put_user(l_type, &target_fl->l_type);
5794 __put_user(fl->l_whence, &target_fl->l_whence);
5795 __put_user(fl->l_start, &target_fl->l_start);
5796 __put_user(fl->l_len, &target_fl->l_len);
5797 __put_user(fl->l_pid, &target_fl->l_pid);
5798 unlock_user_struct(target_fl, target_flock_addr, 1);
5799 return 0;
5800}
5801#endif
5802
5803static inline abi_long copy_from_user_flock64(struct flock64 *fl,
5804 abi_ulong target_flock_addr)
5805{
5806 struct target_flock64 *target_fl;
ae68ad9f 5807 int l_type;
213d3e9e
PM		 5808
5809 if (!lock_user_struct(VERIFY_READ, target_fl, target_flock_addr, 1)) {
5810 return -TARGET_EFAULT;
5811 }
5812
5813 __get_user(l_type, &target_fl->l_type);
ae68ad9f
LV		 5814 l_type = target_to_host_flock(l_type);
5815 if (l_type < 0) {
5816 return l_type;
5817 }
5818 fl->l_type = l_type;
213d3e9e
PM		 5819 __get_user(fl->l_whence, &target_fl->l_whence);
5820 __get_user(fl->l_start, &target_fl->l_start);
5821 __get_user(fl->l_len, &target_fl->l_len);
5822 __get_user(fl->l_pid, &target_fl->l_pid);
5823 unlock_user_struct(target_fl, target_flock_addr, 0);
5824 return 0;
5825}
5826
5827static inline abi_long copy_to_user_flock64(abi_ulong target_flock_addr,
5828 const struct flock64 *fl)
5829{
5830 struct target_flock64 *target_fl;
5831 short l_type;
5832
5833 if (!lock_user_struct(VERIFY_WRITE, target_fl, target_flock_addr, 0)) {
5834 return -TARGET_EFAULT;
5835 }
5836
ae68ad9f 5837 l_type = host_to_target_flock(fl->l_type);
213d3e9e
PM		 5838 __put_user(l_type, &target_fl->l_type);
5839 __put_user(fl->l_whence, &target_fl->l_whence);
5840 __put_user(fl->l_start, &target_fl->l_start);
5841 __put_user(fl->l_len, &target_fl->l_len);
5842 __put_user(fl->l_pid, &target_fl->l_pid);
5843 unlock_user_struct(target_fl, target_flock_addr, 1);
5844 return 0;
5845}
5846
5847static abi_long do_fcntl(int fd, int cmd, abi_ulong arg)
5848{
43f238d7 5849 struct flock64 fl64;
8d5d3004
AS		 5850#ifdef F_GETOWN_EX
5851 struct f_owner_ex fox;
5852 struct target_f_owner_ex *target_fox;
5853#endif
992f48a0 5854 abi_long ret;
5f106811
APR		 5855 int host_cmd = target_to_host_fcntl_cmd(cmd);
5856
5857 if (host_cmd == -TARGET_EINVAL)
5858 return host_cmd;
53a5960a 5859
7775e9ec
FB		 5860 switch(cmd) {
5861 case TARGET_F_GETLK:
213d3e9e
PM		 5862 ret = copy_from_user_flock(&fl64, arg);
5863 if (ret) {
5864 return ret;
5865 }
435da5e7 5866 ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
7775e9ec 5867 if (ret == 0) {
213d3e9e 5868 ret = copy_to_user_flock(arg, &fl64);
7775e9ec
FB		 5869 }
5870 break;
3b46e624 5871
7775e9ec
FB		 5872 case TARGET_F_SETLK:
5873 case TARGET_F_SETLKW:
213d3e9e
PM		 5874 ret = copy_from_user_flock(&fl64, arg);
5875 if (ret) {
5876 return ret;
5877 }
435da5e7 5878 ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
7775e9ec 5879 break;
3b46e624 5880
7775e9ec 5881 case TARGET_F_GETLK64:
213d3e9e
PM		 5882 ret = copy_from_user_flock64(&fl64, arg);
5883 if (ret) {
5884 return ret;
5885 }
435da5e7 5886 ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
43f238d7 5887 if (ret == 0) {
213d3e9e 5888 ret = copy_to_user_flock64(arg, &fl64);
43f238d7 5889 }
9ee1fa2c 5890 break;
7775e9ec
FB		 5891 case TARGET_F_SETLK64:
5892 case TARGET_F_SETLKW64:
213d3e9e
PM		 5893 ret = copy_from_user_flock64(&fl64, arg);
5894 if (ret) {
5895 return ret;
5896 }
435da5e7 5897 ret = get_errno(safe_fcntl(fd, host_cmd, &fl64));
7775e9ec
FB		 5898 break;
5899
5f106811 5900 case TARGET_F_GETFL:
435da5e7 5901 ret = get_errno(safe_fcntl(fd, host_cmd, arg));
9ee1fa2c
FB		 5902 if (ret >= 0) {
5903 ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
5904 }
ffa65c3b
FB		 5905 break;
5906
5f106811 5907 case TARGET_F_SETFL:
435da5e7
PM		 5908 ret = get_errno(safe_fcntl(fd, host_cmd,
5909 target_to_host_bitmask(arg,
5910 fcntl_flags_tbl)));
5f106811
APR		 5911 break;
5912
8d5d3004
AS		 5913#ifdef F_GETOWN_EX
5914 case TARGET_F_GETOWN_EX:
435da5e7 5915 ret = get_errno(safe_fcntl(fd, host_cmd, &fox));
8d5d3004
AS		 5916 if (ret >= 0) {
5917 if (!lock_user_struct(VERIFY_WRITE, target_fox, arg, 0))
5918 return -TARGET_EFAULT;
5919 target_fox->type = tswap32(fox.type);
5920 target_fox->pid = tswap32(fox.pid);
5921 unlock_user_struct(target_fox, arg, 1);
5922 }
5923 break;
5924#endif
5925
5926#ifdef F_SETOWN_EX
5927 case TARGET_F_SETOWN_EX:
5928 if (!lock_user_struct(VERIFY_READ, target_fox, arg, 1))
5929 return -TARGET_EFAULT;
5930 fox.type = tswap32(target_fox->type);
5931 fox.pid = tswap32(target_fox->pid);
5932 unlock_user_struct(target_fox, arg, 0);
435da5e7 5933 ret = get_errno(safe_fcntl(fd, host_cmd, &fox));
8d5d3004
AS		 5934 break;
5935#endif
5936
5f106811
APR		 5937 case TARGET_F_SETOWN:
5938 case TARGET_F_GETOWN:
5939 case TARGET_F_SETSIG:
5940 case TARGET_F_GETSIG:
7e22e546
UH		 5941 case TARGET_F_SETLEASE:
5942 case TARGET_F_GETLEASE:
7e3b92ec
PM		 5943 case TARGET_F_SETPIPE_SZ:
5944 case TARGET_F_GETPIPE_SZ:
435da5e7 5945 ret = get_errno(safe_fcntl(fd, host_cmd, arg));
ffa65c3b
FB		 5946 break;
5947
7775e9ec 5948 default:
435da5e7 5949 ret = get_errno(safe_fcntl(fd, cmd, arg));
7775e9ec
FB		 5950 break;
5951 }
5952 return ret;
5953}
5954
67867308 5955#ifdef USE_UID16
7775e9ec 5956
67867308
FB		 5957static inline int high2lowuid(int uid)
5958{
5959 if (uid > 65535)
5960 return 65534;
5961 else
5962 return uid;
5963}
5964
5965static inline int high2lowgid(int gid)
5966{
5967 if (gid > 65535)
5968 return 65534;
5969 else
5970 return gid;
5971}
5972
5973static inline int low2highuid(int uid)
5974{
5975 if ((int16_t)uid == -1)
5976 return -1;
5977 else
5978 return uid;
5979}
5980
5981static inline int low2highgid(int gid)
5982{
5983 if ((int16_t)gid == -1)
5984 return -1;
5985 else
5986 return gid;
5987}
0c866a7e
RV		 5988static inline int tswapid(int id)
5989{
5990 return tswap16(id);
5991}
76ca310a
PM		 5992
5993#define put_user_id(x, gaddr) put_user_u16(x, gaddr)
5994
0c866a7e
RV		 5995#else /* !USE_UID16 */
5996static inline int high2lowuid(int uid)
5997{
5998 return uid;
5999}
6000static inline int high2lowgid(int gid)
6001{
6002 return gid;
6003}
6004static inline int low2highuid(int uid)
6005{
6006 return uid;
6007}
6008static inline int low2highgid(int gid)
6009{
6010 return gid;
6011}
6012static inline int tswapid(int id)
6013{
6014 return tswap32(id);
6015}
76ca310a
PM		 6016
6017#define put_user_id(x, gaddr) put_user_u32(x, gaddr)
6018
67867308 6019#endif /* USE_UID16 */
1b6b029e 6020
fd6f7798
PM		 6021/* We must do direct syscalls for setting UID/GID, because we want to
6022 * implement the Linux system call semantics of "change only for this thread",
6023 * not the libc/POSIX semantics of "change for all threads in process".
6024 * (See http://ewontfix.com/17/ for more details.)
6025 * We use the 32-bit version of the syscalls if present; if it is not
6026 * then either the host architecture supports 32-bit UIDs natively with
6027 * the standard syscall, or the 16-bit UID is the best we can do.
6028 */
6029#ifdef __NR_setuid32
6030#define __NR_sys_setuid __NR_setuid32
6031#else
6032#define __NR_sys_setuid __NR_setuid
6033#endif
6034#ifdef __NR_setgid32
6035#define __NR_sys_setgid __NR_setgid32
6036#else
6037#define __NR_sys_setgid __NR_setgid
6038#endif
6039#ifdef __NR_setresuid32
6040#define __NR_sys_setresuid __NR_setresuid32
6041#else
6042#define __NR_sys_setresuid __NR_setresuid
6043#endif
6044#ifdef __NR_setresgid32
6045#define __NR_sys_setresgid __NR_setresgid32
6046#else
6047#define __NR_sys_setresgid __NR_setresgid
6048#endif
6049
6050_syscall1(int, sys_setuid, uid_t, uid)
6051_syscall1(int, sys_setgid, gid_t, gid)
6052_syscall3(int, sys_setresuid, uid_t, ruid, uid_t, euid, uid_t, suid)
6053_syscall3(int, sys_setresgid, gid_t, rgid, gid_t, egid, gid_t, sgid)
6054
31e31b8a
FB		 6055void syscall_init(void)
6056{
2ab83ea7
FB		 6057 IOCTLEntry *ie;
6058 const argtype *arg_type;
6059 int size;
b92c47c1 6060 int i;
2ab83ea7 6061
8be656b8
AG		 6062 thunk_init(STRUCT_MAX);
6063
001faf32 6064#define STRUCT(name, ...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
5fafdf24 6065#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
31e31b8a
FB		 6066#include "syscall_types.h"
6067#undef STRUCT
6068#undef STRUCT_SPECIAL
2ab83ea7 6069
dd6e957a
PM		 6070 /* Build target_to_host_errno_table[] table from
6071 * host_to_target_errno_table[]. */
6072 for (i = 0; i < ERRNO_TABLE_SIZE; i++) {
6073 target_to_host_errno_table[host_to_target_errno_table[i]] = i;
6074 }
6075
2ab83ea7
FB		 6076 /* we patch the ioctl size if necessary. We rely on the fact that
6077 no ioctl has all the bits at '1' in the size field */
6078 ie = ioctl_entries;
6079 while (ie->target_cmd != 0) {
6080 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
6081 TARGET_IOC_SIZEMASK) {
6082 arg_type = ie->arg_type;
6083 if (arg_type[0] != TYPE_PTR) {
5fafdf24 6084 fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
2ab83ea7
FB		 6085 ie->target_cmd);
6086 exit(1);
6087 }
6088 arg_type++;
6089 size = thunk_type_size(arg_type, 0);
5fafdf24 6090 ie->target_cmd = (ie->target_cmd &
2ab83ea7
FB		 6091 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
6092 (size << TARGET_IOC_SIZESHIFT);
6093 }
b92c47c1 6094
2ab83ea7 6095 /* automatic consistency check if same arch */
872ea0c0
AZ		 6096#if (defined(__i386__) && defined(TARGET_I386) && defined(TARGET_ABI32)) || \
6097 (defined(__x86_64__) && defined(TARGET_X86_64))
6098 if (unlikely(ie->target_cmd != ie->host_cmd)) {
6099 fprintf(stderr, "ERROR: ioctl(%s): target=0x%x host=0x%x\n",
6100 ie->name, ie->target_cmd, ie->host_cmd);
2ab83ea7
FB		 6101 }
6102#endif
6103 ie++;
6104 }
31e31b8a 6105}
c573ff67 6106
992f48a0 6107#if TARGET_ABI_BITS == 32
ce4defa0
PB		 6108static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
6109{
af325d36 6110#ifdef TARGET_WORDS_BIGENDIAN
ce4defa0
PB		 6111 return ((uint64_t)word0 << 32) | word1;
6112#else
6113 return ((uint64_t)word1 << 32) | word0;
6114#endif
6115}
992f48a0 6116#else /* TARGET_ABI_BITS == 32 */
32407103
JM		 6117static inline uint64_t target_offset64(uint64_t word0, uint64_t word1)
6118{
6119 return word0;
6120}
992f48a0 6121#endif /* TARGET_ABI_BITS != 32 */
ce4defa0
PB		 6122
6123#ifdef TARGET_NR_truncate64
992f48a0
BS		 6124static inline abi_long target_truncate64(void *cpu_env, const char *arg1,
6125 abi_long arg2,
6126 abi_long arg3,
6127 abi_long arg4)
ce4defa0 6128{
8bf8e9df 6129 if (regpairs_aligned(cpu_env, TARGET_NR_truncate64)) {
ce4defa0
PB		 6130 arg2 = arg3;
6131 arg3 = arg4;
48e515d4 6132 }
ce4defa0
PB		 6133 return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
6134}
6135#endif
6136
6137#ifdef TARGET_NR_ftruncate64
992f48a0
BS		 6138static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1,
6139 abi_long arg2,
6140 abi_long arg3,
6141 abi_long arg4)
ce4defa0 6142{
8bf8e9df 6143 if (regpairs_aligned(cpu_env, TARGET_NR_ftruncate64)) {
ce4defa0
PB		 6144 arg2 = arg3;
6145 arg3 = arg4;
48e515d4 6146 }
ce4defa0
PB		 6147 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
6148}
6149#endif
6150
579a97f7
FB		 6151static inline abi_long target_to_host_timespec(struct timespec *host_ts,
6152 abi_ulong target_addr)
53a5960a
PB		 6153{
6154 struct target_timespec *target_ts;
6155
579a97f7
FB		 6156 if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1))
6157 return -TARGET_EFAULT;
c7e35da3
PM		 6158 __get_user(host_ts->tv_sec, &target_ts->tv_sec);
6159 __get_user(host_ts->tv_nsec, &target_ts->tv_nsec);
53a5960a 6160 unlock_user_struct(target_ts, target_addr, 0);
b255bfa8 6161 return 0;
53a5960a
PB		 6162}
6163
579a97f7
FB		 6164static inline abi_long host_to_target_timespec(abi_ulong target_addr,
6165 struct timespec *host_ts)
53a5960a
PB		 6166{
6167 struct target_timespec *target_ts;
6168
579a97f7
FB		 6169 if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0))
6170 return -TARGET_EFAULT;
c7e35da3
PM		 6171 __put_user(host_ts->tv_sec, &target_ts->tv_sec);
6172 __put_user(host_ts->tv_nsec, &target_ts->tv_nsec);
53a5960a 6173 unlock_user_struct(target_ts, target_addr, 1);
b255bfa8 6174 return 0;
53a5960a
PB		 6175}
6176
f4f1e10a
ECL		 6177static inline abi_long target_to_host_itimerspec(struct itimerspec *host_itspec,
6178 abi_ulong target_addr)
6179{
6180 struct target_itimerspec *target_itspec;
6181
6182 if (!lock_user_struct(VERIFY_READ, target_itspec, target_addr, 1)) {
6183 return -TARGET_EFAULT;
6184 }
6185
6186 host_itspec->it_interval.tv_sec =
6187 tswapal(target_itspec->it_interval.tv_sec);
6188 host_itspec->it_interval.tv_nsec =
6189 tswapal(target_itspec->it_interval.tv_nsec);
6190 host_itspec->it_value.tv_sec = tswapal(target_itspec->it_value.tv_sec);
6191 host_itspec->it_value.tv_nsec = tswapal(target_itspec->it_value.tv_nsec);
6192
6193 unlock_user_struct(target_itspec, target_addr, 1);
6194 return 0;
6195}
6196
6197static inline abi_long host_to_target_itimerspec(abi_ulong target_addr,
6198 struct itimerspec *host_its)
6199{
6200 struct target_itimerspec *target_itspec;
6201
6202 if (!lock_user_struct(VERIFY_WRITE, target_itspec, target_addr, 0)) {
6203 return -TARGET_EFAULT;
6204 }
6205
6206 target_itspec->it_interval.tv_sec = tswapal(host_its->it_interval.tv_sec);
6207 target_itspec->it_interval.tv_nsec = tswapal(host_its->it_interval.tv_nsec);
6208
6209 target_itspec->it_value.tv_sec = tswapal(host_its->it_value.tv_sec);
6210 target_itspec->it_value.tv_nsec = tswapal(host_its->it_value.tv_nsec);
6211
6212 unlock_user_struct(target_itspec, target_addr, 0);
6213 return 0;
6214}
6215
19f59bce
AM		 6216static inline abi_long target_to_host_timex(struct timex *host_tx,
6217 abi_long target_addr)
6218{
6219 struct target_timex *target_tx;
6220
6221 if (!lock_user_struct(VERIFY_READ, target_tx, target_addr, 1)) {
6222 return -TARGET_EFAULT;
6223 }
6224
6225 __get_user(host_tx->modes, &target_tx->modes);
6226 __get_user(host_tx->offset, &target_tx->offset);
6227 __get_user(host_tx->freq, &target_tx->freq);
6228 __get_user(host_tx->maxerror, &target_tx->maxerror);
6229 __get_user(host_tx->esterror, &target_tx->esterror);
6230 __get_user(host_tx->status, &target_tx->status);
6231 __get_user(host_tx->constant, &target_tx->constant);
6232 __get_user(host_tx->precision, &target_tx->precision);
6233 __get_user(host_tx->tolerance, &target_tx->tolerance);
6234 __get_user(host_tx->time.tv_sec, &target_tx->time.tv_sec);
6235 __get_user(host_tx->time.tv_usec, &target_tx->time.tv_usec);
6236 __get_user(host_tx->tick, &target_tx->tick);
6237 __get_user(host_tx->ppsfreq, &target_tx->ppsfreq);
6238 __get_user(host_tx->jitter, &target_tx->jitter);
6239 __get_user(host_tx->shift, &target_tx->shift);
6240 __get_user(host_tx->stabil, &target_tx->stabil);
6241 __get_user(host_tx->jitcnt, &target_tx->jitcnt);
6242 __get_user(host_tx->calcnt, &target_tx->calcnt);
6243 __get_user(host_tx->errcnt, &target_tx->errcnt);
6244 __get_user(host_tx->stbcnt, &target_tx->stbcnt);
6245 __get_user(host_tx->tai, &target_tx->tai);
6246
6247 unlock_user_struct(target_tx, target_addr, 0);
6248 return 0;
6249}
6250
6251static inline abi_long host_to_target_timex(abi_long target_addr,
6252 struct timex *host_tx)
6253{
6254 struct target_timex *target_tx;
6255
6256 if (!lock_user_struct(VERIFY_WRITE, target_tx, target_addr, 0)) {
6257 return -TARGET_EFAULT;
6258 }
6259
6260 __put_user(host_tx->modes, &target_tx->modes);
6261 __put_user(host_tx->offset, &target_tx->offset);
6262 __put_user(host_tx->freq, &target_tx->freq);
6263 __put_user(host_tx->maxerror, &target_tx->maxerror);
6264 __put_user(host_tx->esterror, &target_tx->esterror);
6265 __put_user(host_tx->status, &target_tx->status);
6266 __put_user(host_tx->constant, &target_tx->constant);
6267 __put_user(host_tx->precision, &target_tx->precision);
6268 __put_user(host_tx->tolerance, &target_tx->tolerance);
6269 __put_user(host_tx->time.tv_sec, &target_tx->time.tv_sec);
6270 __put_user(host_tx->time.tv_usec, &target_tx->time.tv_usec);
6271 __put_user(host_tx->tick, &target_tx->tick);
6272 __put_user(host_tx->ppsfreq, &target_tx->ppsfreq);
6273 __put_user(host_tx->jitter, &target_tx->jitter);
6274 __put_user(host_tx->shift, &target_tx->shift);
6275 __put_user(host_tx->stabil, &target_tx->stabil);
6276 __put_user(host_tx->jitcnt, &target_tx->jitcnt);
6277 __put_user(host_tx->calcnt, &target_tx->calcnt);
6278 __put_user(host_tx->errcnt, &target_tx->errcnt);
6279 __put_user(host_tx->stbcnt, &target_tx->stbcnt);
6280 __put_user(host_tx->tai, &target_tx->tai);
6281
6282 unlock_user_struct(target_tx, target_addr, 1);
6283 return 0;
6284}
6285
6286
c065976f
PM		 6287static inline abi_long target_to_host_sigevent(struct sigevent *host_sevp,
6288 abi_ulong target_addr)
6289{
6290 struct target_sigevent *target_sevp;
6291
6292 if (!lock_user_struct(VERIFY_READ, target_sevp, target_addr, 1)) {
6293 return -TARGET_EFAULT;
6294 }
6295
6296 /* This union is awkward on 64 bit systems because it has a 32 bit
6297 * integer and a pointer in it; we follow the conversion approach
6298 * used for handling sigval types in signal.c so the guest should get
6299 * the correct value back even if we did a 64 bit byteswap and it's
6300 * using the 32 bit integer.
6301 */
6302 host_sevp->sigev_value.sival_ptr =
6303 (void *)(uintptr_t)tswapal(target_sevp->sigev_value.sival_ptr);
6304 host_sevp->sigev_signo =
6305 target_to_host_signal(tswap32(target_sevp->sigev_signo));
6306 host_sevp->sigev_notify = tswap32(target_sevp->sigev_notify);
6307 host_sevp->_sigev_un._tid = tswap32(target_sevp->_sigev_un._tid);
6308
6309 unlock_user_struct(target_sevp, target_addr, 1);
6310 return 0;
6311}
6312
6f6a4032
TM		 6313#if defined(TARGET_NR_mlockall)
6314static inline int target_to_host_mlockall_arg(int arg)
6315{
6316 int result = 0;
6317
6318 if (arg & TARGET_MLOCKALL_MCL_CURRENT) {
6319 result |= MCL_CURRENT;
6320 }
6321 if (arg & TARGET_MLOCKALL_MCL_FUTURE) {
6322 result |= MCL_FUTURE;
6323 }
6324 return result;
6325}
6326#endif
6327
4f7f8924
AR		 6328#if (defined(TARGET_NR_stat64) || defined(TARGET_NR_lstat64) || \
6329 defined(TARGET_NR_fstat64) || defined(TARGET_NR_fstatat64) || \
6330 defined(TARGET_NR_newfstatat))
6a24a778
AZ		 6331static inline abi_long host_to_target_stat64(void *cpu_env,
6332 abi_ulong target_addr,
6333 struct stat *host_st)
6334{
09701199 6335#if defined(TARGET_ARM) && defined(TARGET_ABI32)
6a24a778
AZ		 6336 if (((CPUARMState *)cpu_env)->eabi) {
6337 struct target_eabi_stat64 *target_st;
6338
6339 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
6340 return -TARGET_EFAULT;
6341 memset(target_st, 0, sizeof(struct target_eabi_stat64));
6342 __put_user(host_st->st_dev, &target_st->st_dev);
6343 __put_user(host_st->st_ino, &target_st->st_ino);
6344#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
6345 __put_user(host_st->st_ino, &target_st->__st_ino);
6346#endif
6347 __put_user(host_st->st_mode, &target_st->st_mode);
6348 __put_user(host_st->st_nlink, &target_st->st_nlink);
6349 __put_user(host_st->st_uid, &target_st->st_uid);
6350 __put_user(host_st->st_gid, &target_st->st_gid);
6351 __put_user(host_st->st_rdev, &target_st->st_rdev);
6352 __put_user(host_st->st_size, &target_st->st_size);
6353 __put_user(host_st->st_blksize, &target_st->st_blksize);
6354 __put_user(host_st->st_blocks, &target_st->st_blocks);
6355 __put_user(host_st->st_atime, &target_st->target_st_atime);
6356 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
6357 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
6358 unlock_user_struct(target_st, target_addr, 1);
6359 } else
6360#endif
6361 {
20d155bc 6362#if defined(TARGET_HAS_STRUCT_STAT64)
6a24a778 6363 struct target_stat64 *target_st;
20d155bc
SW		 6364#else
6365 struct target_stat *target_st;
9d33b76b 6366#endif
6a24a778
AZ		 6367
6368 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
6369 return -TARGET_EFAULT;
9d33b76b 6370 memset(target_st, 0, sizeof(*target_st));
6a24a778
AZ		 6371 __put_user(host_st->st_dev, &target_st->st_dev);
6372 __put_user(host_st->st_ino, &target_st->st_ino);
6373#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
6374 __put_user(host_st->st_ino, &target_st->__st_ino);
6375#endif
6376 __put_user(host_st->st_mode, &target_st->st_mode);
6377 __put_user(host_st->st_nlink, &target_st->st_nlink);
6378 __put_user(host_st->st_uid, &target_st->st_uid);
6379 __put_user(host_st->st_gid, &target_st->st_gid);
6380 __put_user(host_st->st_rdev, &target_st->st_rdev);
6381 /* XXX: better use of kernel struct */
6382 __put_user(host_st->st_size, &target_st->st_size);
6383 __put_user(host_st->st_blksize, &target_st->st_blksize);
6384 __put_user(host_st->st_blocks, &target_st->st_blocks);
6385 __put_user(host_st->st_atime, &target_st->target_st_atime);
6386 __put_user(host_st->st_mtime, &target_st->target_st_mtime);
6387 __put_user(host_st->st_ctime, &target_st->target_st_ctime);
6388 unlock_user_struct(target_st, target_addr, 1);
6389 }
6390
6391 return 0;
6392}
4f7f8924 6393#endif
6a24a778 6394
bd0c5661
PB		 6395/* ??? Using host futex calls even when target atomic operations
6396 are not really atomic probably breaks things. However implementing
6397 futexes locally would make futexes shared between multiple processes
6398 tricky. However they're probably useless because guest atomic
6399 operations won't work either. */
8fcd3692
BS		 6400static int do_futex(target_ulong uaddr, int op, int val, target_ulong timeout,
6401 target_ulong uaddr2, int val3)
bd0c5661
PB		 6402{
6403 struct timespec ts, *pts;
a16aae0c 6404 int base_op;
bd0c5661
PB		 6405
6406 /* ??? We assume FUTEX_* constants are the same on both host
6407 and target. */
a29ccd63 6408#ifdef FUTEX_CMD_MASK
a16aae0c 6409 base_op = op & FUTEX_CMD_MASK;
a29ccd63 6410#else
a16aae0c 6411 base_op = op;
a29ccd63 6412#endif
a16aae0c 6413 switch (base_op) {
bd0c5661 6414 case FUTEX_WAIT:
cce246e0 6415 case FUTEX_WAIT_BITSET:
bd0c5661
PB		 6416 if (timeout) {
6417 pts = &ts;
6418 target_to_host_timespec(pts, timeout);
6419 } else {
6420 pts = NULL;
6421 }
d509eeb1 6422 return get_errno(safe_futex(g2h(uaddr), op, tswap32(val),
cce246e0 6423 pts, NULL, val3));
bd0c5661 6424 case FUTEX_WAKE:
d509eeb1 6425 return get_errno(safe_futex(g2h(uaddr), op, val, NULL, NULL, 0));
bd0c5661 6426 case FUTEX_FD:
d509eeb1 6427 return get_errno(safe_futex(g2h(uaddr), op, val, NULL, NULL, 0));
bd0c5661 6428 case FUTEX_REQUEUE:
bd0c5661 6429 case FUTEX_CMP_REQUEUE:
a16aae0c
NF		 6430 case FUTEX_WAKE_OP:
6431 /* For FUTEX_REQUEUE, FUTEX_CMP_REQUEUE, and FUTEX_WAKE_OP, the
6432 TIMEOUT parameter is interpreted as a uint32_t by the kernel.
6433 But the prototype takes a `struct timespec *'; insert casts
6434 to satisfy the compiler. We do not need to tswap TIMEOUT
6435 since it's not compared to guest memory. */
6436 pts = (struct timespec *)(uintptr_t) timeout;
d509eeb1
PM		 6437 return get_errno(safe_futex(g2h(uaddr), op, val, pts,
6438 g2h(uaddr2),
6439 (base_op == FUTEX_CMP_REQUEUE
6440 ? tswap32(val3)
6441 : val3)));
bd0c5661
PB		 6442 default:
6443 return -TARGET_ENOSYS;
6444 }
6445}
0f0426f3
LV		 6446#if defined(TARGET_NR_name_to_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
6447static abi_long do_name_to_handle_at(abi_long dirfd, abi_long pathname,
6448 abi_long handle, abi_long mount_id,
6449 abi_long flags)
6450{
6451 struct file_handle *target_fh;
6452 struct file_handle *fh;
6453 int mid = 0;
6454 abi_long ret;
6455 char *name;
6456 unsigned int size, total_size;
6457
6458 if (get_user_s32(size, handle)) {
6459 return -TARGET_EFAULT;
6460 }
6461
6462 name = lock_user_string(pathname);
6463 if (!name) {
6464 return -TARGET_EFAULT;
6465 }
6466
6467 total_size = sizeof(struct file_handle) + size;
6468 target_fh = lock_user(VERIFY_WRITE, handle, total_size, 0);
6469 if (!target_fh) {
6470 unlock_user(name, pathname, 0);
6471 return -TARGET_EFAULT;
6472 }
6473
6474 fh = g_malloc0(total_size);
6475 fh->handle_bytes = size;
6476
6477 ret = get_errno(name_to_handle_at(dirfd, path(name), fh, &mid, flags));
6478 unlock_user(name, pathname, 0);
6479
6480 /* man name_to_handle_at(2):
6481 * Other than the use of the handle_bytes field, the caller should treat
6482 * the file_handle structure as an opaque data type
6483 */
6484
6485 memcpy(target_fh, fh, total_size);
6486 target_fh->handle_bytes = tswap32(fh->handle_bytes);
6487 target_fh->handle_type = tswap32(fh->handle_type);
6488 g_free(fh);
6489 unlock_user(target_fh, handle, total_size);
6490
6491 if (put_user_s32(mid, mount_id)) {
6492 return -TARGET_EFAULT;
6493 }
6494
6495 return ret;
6496
6497}
6498#endif
6499
6500#if defined(TARGET_NR_open_by_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
6501static abi_long do_open_by_handle_at(abi_long mount_fd, abi_long handle,
6502 abi_long flags)
6503{
6504 struct file_handle *target_fh;
6505 struct file_handle *fh;
6506 unsigned int size, total_size;
6507 abi_long ret;
6508
6509 if (get_user_s32(size, handle)) {
6510 return -TARGET_EFAULT;
6511 }
6512
6513 total_size = sizeof(struct file_handle) + size;
6514 target_fh = lock_user(VERIFY_READ, handle, total_size, 1);
6515 if (!target_fh) {
6516 return -TARGET_EFAULT;
6517 }
6518
e9d49d51 6519 fh = g_memdup(target_fh, total_size);
0f0426f3
LV		 6520 fh->handle_bytes = size;
6521 fh->handle_type = tswap32(target_fh->handle_type);
6522
6523 ret = get_errno(open_by_handle_at(mount_fd, fh,
6524 target_to_host_bitmask(flags, fcntl_flags_tbl)));
6525
6526 g_free(fh);
6527
6528 unlock_user(target_fh, handle, total_size);
6529
6530 return ret;
6531}
6532#endif
bd0c5661 6533
e36800c9
LV		 6534#if defined(TARGET_NR_signalfd) || defined(TARGET_NR_signalfd4)
6535
e36800c9
LV		 6536static abi_long do_signalfd4(int fd, abi_long mask, int flags)
6537{
6538 int host_flags;
6539 target_sigset_t *target_mask;
6540 sigset_t host_mask;
6541 abi_long ret;
6542
6543 if (flags & ~(TARGET_O_NONBLOCK | TARGET_O_CLOEXEC)) {
6544 return -TARGET_EINVAL;
6545 }
6546 if (!lock_user_struct(VERIFY_READ, target_mask, mask, 1)) {
6547 return -TARGET_EFAULT;
6548 }
6549
6550 target_to_host_sigset(&host_mask, target_mask);
6551
6552 host_flags = target_to_host_bitmask(flags, fcntl_flags_tbl);
6553
6554 ret = get_errno(signalfd(fd, &host_mask, host_flags));
6555 if (ret >= 0) {
6556 fd_trans_register(ret, &target_signalfd_trans);
6557 }
6558
6559 unlock_user_struct(target_mask, mask, 0);
6560
6561 return ret;
6562}
6563#endif
6564
1d9d8b55
PB		 6565/* Map host to target signal numbers for the wait family of syscalls.
6566 Assume all other status bits are the same. */
a05c6409 6567int host_to_target_waitstatus(int status)
1d9d8b55
PB		 6568{
6569 if (WIFSIGNALED(status)) {
6570 return host_to_target_signal(WTERMSIG(status)) | (status & ~0x7f);
6571 }
6572 if (WIFSTOPPED(status)) {
6573 return (host_to_target_signal(WSTOPSIG(status)) << 8)
6574 | (status & 0xff);
6575 }
6576 return status;
6577}
6578
76b94245
WVS		 6579static int open_self_cmdline(void *cpu_env, int fd)
6580{
58de8b96
AS		 6581 CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
6582 struct linux_binprm *bprm = ((TaskState *)cpu->opaque)->bprm;
6583 int i;
76b94245 6584
58de8b96
AS		 6585 for (i = 0; i < bprm->argc; i++) {
6586 size_t len = strlen(bprm->argv[i]) + 1;
76b94245 6587
58de8b96 6588 if (write(fd, bprm->argv[i], len) != len) {
76b94245 6589 return -1;
76b94245
WVS		 6590 }
6591 }
6592
58de8b96 6593 return 0;
76b94245
WVS		 6594}
6595
36c08d49
AG		 6596static int open_self_maps(void *cpu_env, int fd)
6597{
0429a971
AF		 6598 CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
6599 TaskState *ts = cpu->opaque;
1a49ef2a
AG		 6600 FILE *fp;
6601 char *line = NULL;
6602 size_t len = 0;
6603 ssize_t read;
6604
6605 fp = fopen("/proc/self/maps", "r");
6606 if (fp == NULL) {
a3ca7bb2 6607 return -1;
1a49ef2a 6608 }
36c08d49 6609
1a49ef2a
AG		 6610 while ((read = getline(&line, &len, fp)) != -1) {
6611 int fields, dev_maj, dev_min, inode;
6612 uint64_t min, max, offset;
6613 char flag_r, flag_w, flag_x, flag_p;
6614 char path[512] = "";
6615 fields = sscanf(line, "%"PRIx64"-%"PRIx64" %c%c%c%c %"PRIx64" %x:%x %d"
6616 " %512s", &min, &max, &flag_r, &flag_w, &flag_x,
6617 &flag_p, &offset, &dev_maj, &dev_min, &inode, path);
6618
6619 if ((fields < 10) || (fields > 11)) {
6620 continue;
6621 }
d67f4aaa
MI		 6622 if (h2g_valid(min)) {
6623 int flags = page_get_flags(h2g(min));
ebf9a363 6624 max = h2g_valid(max - 1) ? max : (uintptr_t)g2h(GUEST_ADDR_MAX) + 1;
d67f4aaa
MI		 6625 if (page_check_range(h2g(min), max - min, flags) == -1) {
6626 continue;
6627 }
6628 if (h2g(min) == ts->info->stack_limit) {
6629 pstrcpy(path, sizeof(path), " [stack]");
6630 }
3e23de15 6631 dprintf(fd, TARGET_ABI_FMT_ptr "-" TARGET_ABI_FMT_ptr
e24fed4e 6632 " %c%c%c%c %08" PRIx64 " %02x:%02x %d %s%s\n",
d67f4aaa 6633 h2g(min), h2g(max - 1) + 1, flag_r, flag_w,
1a49ef2a 6634 flag_x, flag_p, offset, dev_maj, dev_min, inode,
e24fed4e 6635 path[0] ? " " : "", path);
1a49ef2a
AG		 6636 }
6637 }
6638
6639 free(line);
6640 fclose(fp);
6641
36c08d49
AG		 6642 return 0;
6643}
6644
480b8e7d
AG		 6645static int open_self_stat(void *cpu_env, int fd)
6646{
0429a971
AF		 6647 CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
6648 TaskState *ts = cpu->opaque;
480b8e7d
AG		 6649 abi_ulong start_stack = ts->info->start_stack;
6650 int i;
6651
6652 for (i = 0; i < 44; i++) {
6653 char buf[128];
6654 int len;
6655 uint64_t val = 0;
6656
e0e65bee
FE		 6657 if (i == 0) {
6658 /* pid */
6659 val = getpid();
6660 snprintf(buf, sizeof(buf), "%"PRId64 " ", val);
6661 } else if (i == 1) {
6662 /* app name */
6663 snprintf(buf, sizeof(buf), "(%s) ", ts->bprm->argv[0]);
6664 } else if (i == 27) {
6665 /* stack bottom */
6666 val = start_stack;
6667 snprintf(buf, sizeof(buf), "%"PRId64 " ", val);
6668 } else {
6669 /* for the rest, there is MasterCard */
6670 snprintf(buf, sizeof(buf), "0%c", i == 43 ? '\n' : ' ');
480b8e7d 6671 }
e0e65bee 6672
480b8e7d
AG		 6673 len = strlen(buf);
6674 if (write(fd, buf, len) != len) {
6675 return -1;
6676 }
6677 }
6678
6679 return 0;
6680}
6681
257450ee
AG		 6682static int open_self_auxv(void *cpu_env, int fd)
6683{
0429a971
AF		 6684 CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
6685 TaskState *ts = cpu->opaque;
257450ee
AG		 6686 abi_ulong auxv = ts->info->saved_auxv;
6687 abi_ulong len = ts->info->auxv_len;
6688 char *ptr;
6689
6690 /*
6691 * Auxiliary vector is stored in target process stack.
6692 * read in whole auxv vector and copy it to file
6693 */
6694 ptr = lock_user(VERIFY_READ, auxv, len, 0);
6695 if (ptr != NULL) {
6696 while (len > 0) {
6697 ssize_t r;
6698 r = write(fd, ptr, len);
6699 if (r <= 0) {
6700 break;
6701 }
6702 len -= r;
6703 ptr += r;
6704 }
6705 lseek(fd, 0, SEEK_SET);
6706 unlock_user(ptr, auxv, len);
6707 }
6708
6709 return 0;
6710}
6711
463d8e73
AS		 6712static int is_proc_myself(const char *filename, const char *entry)
6713{
6714 if (!strncmp(filename, "/proc/", strlen("/proc/"))) {
6715 filename += strlen("/proc/");
6716 if (!strncmp(filename, "self/", strlen("self/"))) {
6717 filename += strlen("self/");
6718 } else if (*filename >= '1' && *filename <= '9') {
6719 char myself[80];
6720 snprintf(myself, sizeof(myself), "%d/", getpid());
6721 if (!strncmp(filename, myself, strlen(myself))) {
6722 filename += strlen(myself);
6723 } else {
6724 return 0;
6725 }
6726 } else {
6727 return 0;
6728 }
6729 if (!strcmp(filename, entry)) {
6730 return 1;
6731 }
6732 }
6733 return 0;
6734}
6735
de6b9933
LV		 6736#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
6737static int is_proc(const char *filename, const char *entry)
6738{
6739 return strcmp(filename, entry) == 0;
6740}
6741
6742static int open_net_route(void *cpu_env, int fd)
6743{
6744 FILE *fp;
6745 char *line = NULL;
6746 size_t len = 0;
6747 ssize_t read;
6748
6749 fp = fopen("/proc/net/route", "r");
6750 if (fp == NULL) {
a3ca7bb2 6751 return -1;
de6b9933
LV		 6752 }
6753
6754 /* read header */
6755
6756 read = getline(&line, &len, fp);
6757 dprintf(fd, "%s", line);
6758
6759 /* read routes */
6760
6761 while ((read = getline(&line, &len, fp)) != -1) {
6762 char iface[16];
6763 uint32_t dest, gw, mask;
6764 unsigned int flags, refcnt, use, metric, mtu, window, irtt;
6765 sscanf(line, "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n",
6766 iface, &dest, &gw, &flags, &refcnt, &use, &metric,
6767 &mask, &mtu, &window, &irtt);
6768 dprintf(fd, "%s\t%08x\t%08x\t%04x\t%d\t%d\t%d\t%08x\t%d\t%u\t%u\n",
6769 iface, tswap32(dest), tswap32(gw), flags, refcnt, use,
6770 metric, tswap32(mask), mtu, window, irtt);
6771 }
6772
6773 free(line);
6774 fclose(fp);
6775
6776 return 0;
6777}
6778#endif
6779
0b2effd7 6780static int do_openat(void *cpu_env, int dirfd, const char *pathname, int flags, mode_t mode)
3be14d05
AG		 6781{
6782 struct fake_open {
6783 const char *filename;
6784 int (*fill)(void *cpu_env, int fd);
de6b9933 6785 int (*cmp)(const char *s1, const char *s2);
3be14d05
AG		 6786 };
6787 const struct fake_open *fake_open;
6788 static const struct fake_open fakes[] = {
de6b9933
LV		 6789 { "maps", open_self_maps, is_proc_myself },
6790 { "stat", open_self_stat, is_proc_myself },
6791 { "auxv", open_self_auxv, is_proc_myself },
76b94245 6792 { "cmdline", open_self_cmdline, is_proc_myself },
de6b9933
LV		 6793#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
6794 { "/proc/net/route", open_net_route, is_proc },
6795#endif
6796 { NULL, NULL, NULL }
3be14d05
AG		 6797 };
6798
aa07f5ec
MO		 6799 if (is_proc_myself(pathname, "exe")) {
6800 int execfd = qemu_getauxval(AT_EXECFD);
c10a0738 6801 return execfd ? execfd : safe_openat(dirfd, exec_path, flags, mode);
aa07f5ec
MO		 6802 }
6803
3be14d05 6804 for (fake_open = fakes; fake_open->filename; fake_open++) {
de6b9933 6805 if (fake_open->cmp(pathname, fake_open->filename)) {
3be14d05
AG		 6806 break;
6807 }
6808 }
6809
6810 if (fake_open->filename) {
6811 const char *tmpdir;
6812 char filename[PATH_MAX];
6813 int fd, r;
6814
6815 /* create temporary file to map stat to */
6816 tmpdir = getenv("TMPDIR");
6817 if (!tmpdir)
6818 tmpdir = "/tmp";
6819 snprintf(filename, sizeof(filename), "%s/qemu-open.XXXXXX", tmpdir);
6820 fd = mkstemp(filename);
6821 if (fd < 0) {
6822 return fd;
6823 }
6824 unlink(filename);
6825
6826 if ((r = fake_open->fill(cpu_env, fd))) {
a3ca7bb2 6827 int e = errno;
3be14d05 6828 close(fd);
a3ca7bb2 6829 errno = e;
3be14d05
AG		 6830 return r;
6831 }
6832 lseek(fd, 0, SEEK_SET);
6833
6834 return fd;
6835 }
6836
c10a0738 6837 return safe_openat(dirfd, path(pathname), flags, mode);
3be14d05
AG		 6838}
6839
aecc8861
AG		 6840#define TIMER_MAGIC 0x0caf0000
6841#define TIMER_MAGIC_MASK 0xffff0000
6842
6843/* Convert QEMU provided timer ID back to internal 16bit index format */
6844static target_timer_t get_timer_id(abi_long arg)
6845{
6846 target_timer_t timerid = arg;
6847
6848 if ((timerid & TIMER_MAGIC_MASK) != TIMER_MAGIC) {
6849 return -TARGET_EINVAL;
6850 }
6851
6852 timerid &= 0xffff;
6853
6854 if (timerid >= ARRAY_SIZE(g_posix_timers)) {
6855 return -TARGET_EINVAL;
6856 }
6857
6858 return timerid;
6859}
6860
2e0a8713
ST		 6861static int target_to_host_cpu_mask(unsigned long *host_mask,
6862 size_t host_size,
6863 abi_ulong target_addr,
6864 size_t target_size)
6865{
6866 unsigned target_bits = sizeof(abi_ulong) * 8;
6867 unsigned host_bits = sizeof(*host_mask) * 8;
6868 abi_ulong *target_mask;
6869 unsigned i, j;
6870
6871 assert(host_size >= target_size);
6872
6873 target_mask = lock_user(VERIFY_READ, target_addr, target_size, 1);
6874 if (!target_mask) {
6875 return -TARGET_EFAULT;
6876 }
6877 memset(host_mask, 0, host_size);
6878
6879 for (i = 0 ; i < target_size / sizeof(abi_ulong); i++) {
6880 unsigned bit = i * target_bits;
6881 abi_ulong val;
6882
6883 __get_user(val, &target_mask[i]);
6884 for (j = 0; j < target_bits; j++, bit++) {
6885 if (val & (1UL << j)) {
6886 host_mask[bit / host_bits] |= 1UL << (bit % host_bits);
6887 }
6888 }
6889 }
6890
6891 unlock_user(target_mask, target_addr, 0);
6892 return 0;
6893}
6894
6895static int host_to_target_cpu_mask(const unsigned long *host_mask,
6896 size_t host_size,
6897 abi_ulong target_addr,
6898 size_t target_size)
6899{
6900 unsigned target_bits = sizeof(abi_ulong) * 8;
6901 unsigned host_bits = sizeof(*host_mask) * 8;
6902 abi_ulong *target_mask;
6903 unsigned i, j;
6904
6905 assert(host_size >= target_size);
6906
6907 target_mask = lock_user(VERIFY_WRITE, target_addr, target_size, 0);
6908 if (!target_mask) {
6909 return -TARGET_EFAULT;
6910 }
6911
6912 for (i = 0 ; i < target_size / sizeof(abi_ulong); i++) {
6913 unsigned bit = i * target_bits;
6914 abi_ulong val = 0;
6915
6916 for (j = 0; j < target_bits; j++, bit++) {
6917 if (host_mask[bit / host_bits] & (1UL << (bit % host_bits))) {
6918 val |= 1UL << j;
6919 }
6920 }
6921 __put_user(val, &target_mask[i]);
6922 }
6923
6924 unlock_user(target_mask, target_addr, target_size);
6925 return 0;
6926}
6927
dc1ce18b
RH		 6928/* This is an internal helper for do_syscall so that it is easier
6929 * to have a single return point, so that actions, such as logging
6930 * of syscall results, can be performed.
6931 * All errnos that do_syscall() returns must be -TARGET_<errcode>.
6932 */
6933static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1,
6934 abi_long arg2, abi_long arg3, abi_long arg4,
6935 abi_long arg5, abi_long arg6, abi_long arg7,
6936 abi_long arg8)
31e31b8a 6937{
182735ef 6938 CPUState *cpu = ENV_GET_CPU(cpu_env);
992f48a0 6939 abi_long ret;
4f7f8924
AR		 6940#if defined(TARGET_NR_stat) || defined(TARGET_NR_stat64) \
6941 || defined(TARGET_NR_lstat) || defined(TARGET_NR_lstat64) \
6942 || defined(TARGET_NR_fstat) || defined(TARGET_NR_fstat64)
31e31b8a 6943 struct stat st;
4f7f8924
AR		 6944#endif
6945#if defined(TARGET_NR_statfs) || defined(TARGET_NR_statfs64) \
6946 || defined(TARGET_NR_fstatfs)
56c8f68f 6947 struct statfs stfs;
4f7f8924 6948#endif
53a5960a 6949 void *p;
3b46e624 6950
31e31b8a
FB		 6951 switch(num) {
6952 case TARGET_NR_exit:
9b056fcc
AF		 6953 /* In old applications this may be used to implement _exit(2).
6954 However in threaded applictions it is used for thread termination,
6955 and _exit_group is used for application termination.
6956 Do thread termination if we have more then one thread. */
a0995886
TB		 6957
6958 if (block_signals()) {
72eb7ea8 6959 return -TARGET_ERESTARTSYS;
a0995886
TB		 6960 }
6961
dd1f6349
AB		 6962 cpu_list_lock();
6963
bdc44640 6964 if (CPU_NEXT(first_cpu)) {
9b056fcc 6965 TaskState *ts;
9b056fcc 6966
9b056fcc 6967 /* Remove the CPU from the list. */
068a5ea0 6968 QTAILQ_REMOVE_RCU(&cpus, cpu, node);
dd1f6349 6969
9b056fcc 6970 cpu_list_unlock();
dd1f6349 6971
0429a971 6972 ts = cpu->opaque;
9b056fcc
AF		 6973 if (ts->child_tidptr) {
6974 put_user_u32(0, ts->child_tidptr);
6975 sys_futex(g2h(ts->child_tidptr), FUTEX_WAKE, INT_MAX,
6976 NULL, NULL, 0);
6977 }
a2247f8e 6978 thread_cpu = NULL;
0429a971 6979 object_unref(OBJECT(cpu));
9b056fcc 6980 g_free(ts);
70903763 6981 rcu_unregister_thread();
9b056fcc
AF		 6982 pthread_exit(NULL);
6983 }
dd1f6349
AB		 6984
6985 cpu_list_unlock();
708b6a64 6986 preexit_cleanup(cpu_env, arg1);
c2764719 6987 _exit(arg1);
72eb7ea8 6988 return 0; /* avoid warning */
31e31b8a 6989 case TARGET_NR_read:
72eb7ea8
RH		 6990 if (arg3 == 0) {
6991 return 0;
6992 } else {
38d840e6 6993 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
2852aafd 6994 return -TARGET_EFAULT;
50afd02b 6995 ret = get_errno(safe_read(arg1, p, arg3));
e36800c9 6996 if (ret >= 0 &&
5d4d3665
LV		 6997 fd_trans_host_to_target_data(arg1)) {
6998 ret = fd_trans_host_to_target_data(arg1)(p, ret);
e36800c9 6999 }
38d840e6
AJ		 7000 unlock_user(p, arg2, ret);
7001 }
72eb7ea8 7002 return ret;
31e31b8a 7003 case TARGET_NR_write:
58cfa6c2
TGJ		 7004 if (arg2 == 0 && arg3 == 0) {
7005 return get_errno(safe_write(arg1, 0, 0));
7006 }
579a97f7 7007 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
2852aafd 7008 return -TARGET_EFAULT;
04b9bcf9
LV		 7009 if (fd_trans_target_to_host_data(arg1)) {
7010 void *copy = g_malloc(arg3);
7011 memcpy(copy, p, arg3);
7012 ret = fd_trans_target_to_host_data(arg1)(copy, arg3);
7013 if (ret >= 0) {
7014 ret = get_errno(safe_write(arg1, copy, ret));
7015 }
7016 g_free(copy);
7017 } else {
7018 ret = get_errno(safe_write(arg1, p, arg3));
7019 }
53a5960a 7020 unlock_user(p, arg2, 0);
72eb7ea8
RH		 7021 return ret;
7022
704eff6c 7023#ifdef TARGET_NR_open
31e31b8a 7024 case TARGET_NR_open:
2f619698 7025 if (!(p = lock_user_string(arg1)))
2852aafd 7026 return -TARGET_EFAULT;
0b2effd7
RV		 7027 ret = get_errno(do_openat(cpu_env, AT_FDCWD, p,
7028 target_to_host_bitmask(arg2, fcntl_flags_tbl),
7029 arg3));
e36800c9 7030 fd_trans_unregister(ret);
53a5960a 7031 unlock_user(p, arg1, 0);
72eb7ea8 7032 return ret;
704eff6c 7033#endif
82424832 7034 case TARGET_NR_openat:
579a97f7 7035 if (!(p = lock_user_string(arg2)))
2852aafd 7036 return -TARGET_EFAULT;
0b2effd7
RV		 7037 ret = get_errno(do_openat(cpu_env, arg1, p,
7038 target_to_host_bitmask(arg3, fcntl_flags_tbl),
7039 arg4));
e36800c9 7040 fd_trans_unregister(ret);
579a97f7 7041 unlock_user(p, arg2, 0);
72eb7ea8 7042 return ret;
0f0426f3
LV		 7043#if defined(TARGET_NR_name_to_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
7044 case TARGET_NR_name_to_handle_at:
7045 ret = do_name_to_handle_at(arg1, arg2, arg3, arg4, arg5);
72eb7ea8 7046 return ret;
0f0426f3
LV		 7047#endif
7048#if defined(TARGET_NR_open_by_handle_at) && defined(CONFIG_OPEN_BY_HANDLE)
7049 case TARGET_NR_open_by_handle_at:
7050 ret = do_open_by_handle_at(arg1, arg2, arg3);
e36800c9 7051 fd_trans_unregister(ret);
72eb7ea8 7052 return ret;
0f0426f3 7053#endif
31e31b8a 7054 case TARGET_NR_close:
e36800c9 7055 fd_trans_unregister(arg1);
72eb7ea8
RH		 7056 return get_errno(close(arg1));
7057
31e31b8a 7058 case TARGET_NR_brk:
72eb7ea8 7059 return do_brk(arg1);
704eff6c 7060#ifdef TARGET_NR_fork
31e31b8a 7061 case TARGET_NR_fork:
72eb7ea8 7062 return get_errno(do_fork(cpu_env, TARGET_SIGCHLD, 0, 0, 0, 0));
704eff6c 7063#endif
e5febef5 7064#ifdef TARGET_NR_waitpid
31e31b8a
FB		 7065 case TARGET_NR_waitpid:
7066 {
53a5960a 7067 int status;
4af80a37 7068 ret = get_errno(safe_wait4(arg1, &status, arg3, 0));
5379557b 7069 if (!is_error(ret) && arg2 && ret
1d9d8b55 7070 && put_user_s32(host_to_target_waitstatus(status), arg2))
2852aafd 7071 return -TARGET_EFAULT;
31e31b8a 7072 }
72eb7ea8 7073 return ret;
e5febef5 7074#endif
f0cbb613
PB		 7075#ifdef TARGET_NR_waitid
7076 case TARGET_NR_waitid:
7077 {
7078 siginfo_t info;
7079 info.si_pid = 0;
4af80a37 7080 ret = get_errno(safe_waitid(arg1, arg2, &info, arg4, NULL));
f0cbb613 7081 if (!is_error(ret) && arg3 && info.si_pid != 0) {
c227f099 7082 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_siginfo_t), 0)))
2852aafd 7083 return -TARGET_EFAULT;
f0cbb613 7084 host_to_target_siginfo(p, &info);
c227f099 7085 unlock_user(p, arg3, sizeof(target_siginfo_t));
f0cbb613
PB		 7086 }
7087 }
72eb7ea8 7088 return ret;
f0cbb613 7089#endif
7a3148a9 7090#ifdef TARGET_NR_creat /* not on alpha */
31e31b8a 7091 case TARGET_NR_creat:
579a97f7 7092 if (!(p = lock_user_string(arg1)))
2852aafd 7093 return -TARGET_EFAULT;
53a5960a 7094 ret = get_errno(creat(p, arg2));
e36800c9 7095 fd_trans_unregister(ret);
53a5960a 7096 unlock_user(p, arg1, 0);
72eb7ea8 7097 return ret;
7a3148a9 7098#endif
704eff6c 7099#ifdef TARGET_NR_link
31e31b8a 7100 case TARGET_NR_link:
53a5960a
PB		 7101 {
7102 void * p2;
7103 p = lock_user_string(arg1);
7104 p2 = lock_user_string(arg2);
579a97f7
FB		 7105 if (!p || !p2)
7106 ret = -TARGET_EFAULT;
7107 else
7108 ret = get_errno(link(p, p2));
53a5960a
PB		 7109 unlock_user(p2, arg2, 0);
7110 unlock_user(p, arg1, 0);
7111 }
72eb7ea8 7112 return ret;
704eff6c 7113#endif
c0d472b1 7114#if defined(TARGET_NR_linkat)
64f0ce4c 7115 case TARGET_NR_linkat:
64f0ce4c
TS		 7116 {
7117 void * p2 = NULL;
579a97f7 7118 if (!arg2 || !arg4)
2852aafd 7119 return -TARGET_EFAULT;
64f0ce4c
TS		 7120 p = lock_user_string(arg2);
7121 p2 = lock_user_string(arg4);
579a97f7 7122 if (!p || !p2)
0da46a6e 7123 ret = -TARGET_EFAULT;
64f0ce4c 7124 else
c0d472b1 7125 ret = get_errno(linkat(arg1, p, arg3, p2, arg5));
579a97f7
FB		 7126 unlock_user(p, arg2, 0);
7127 unlock_user(p2, arg4, 0);
64f0ce4c 7128 }
72eb7ea8 7129 return ret;
64f0ce4c 7130#endif
704eff6c 7131#ifdef TARGET_NR_unlink
31e31b8a 7132 case TARGET_NR_unlink:
579a97f7 7133 if (!(p = lock_user_string(arg1)))
2852aafd 7134 return -TARGET_EFAULT;
53a5960a
PB		 7135 ret = get_errno(unlink(p));
7136 unlock_user(p, arg1, 0);
72eb7ea8 7137 return ret;
704eff6c 7138#endif
c0d472b1 7139#if defined(TARGET_NR_unlinkat)
8170f56b 7140 case TARGET_NR_unlinkat:
579a97f7 7141 if (!(p = lock_user_string(arg2)))
2852aafd 7142 return -TARGET_EFAULT;
c0d472b1 7143 ret = get_errno(unlinkat(arg1, p, arg3));
579a97f7 7144 unlock_user(p, arg2, 0);
72eb7ea8 7145 return ret;
b7d35e65 7146#endif
31e31b8a 7147 case TARGET_NR_execve:
7854b056
FB		 7148 {
7149 char **argp, **envp;
f7341ff4 7150 int argc, envc;
992f48a0
BS		 7151 abi_ulong gp;
7152 abi_ulong guest_argp;
7153 abi_ulong guest_envp;
7154 abi_ulong addr;
7854b056 7155 char **q;
a6f79cc9 7156 int total_size = 0;
7854b056 7157
f7341ff4 7158 argc = 0;
53a5960a 7159 guest_argp = arg2;
da94d263 7160 for (gp = guest_argp; gp; gp += sizeof(abi_ulong)) {
03aa1976 7161 if (get_user_ual(addr, gp))
2852aafd 7162 return -TARGET_EFAULT;
03aa1976 7163 if (!addr)
2f619698 7164 break;
7854b056 7165 argc++;
2f619698 7166 }
f7341ff4 7167 envc = 0;
53a5960a 7168 guest_envp = arg3;
da94d263 7169 for (gp = guest_envp; gp; gp += sizeof(abi_ulong)) {
03aa1976 7170 if (get_user_ual(addr, gp))
2852aafd 7171 return -TARGET_EFAULT;
03aa1976 7172 if (!addr)
2f619698 7173 break;
7854b056 7174 envc++;
2f619698 7175 }
7854b056 7176
b936cb50
PP		 7177 argp = g_new0(char *, argc + 1);
7178 envp = g_new0(char *, envc + 1);
7854b056 7179
da94d263 7180 for (gp = guest_argp, q = argp; gp;
992f48a0 7181 gp += sizeof(abi_ulong), q++) {
2f619698
FB		 7182 if (get_user_ual(addr, gp))
7183 goto execve_efault;
53a5960a
PB		 7184 if (!addr)
7185 break;
2f619698
FB		 7186 if (!(*q = lock_user_string(addr)))
7187 goto execve_efault;
a6f79cc9 7188 total_size += strlen(*q) + 1;
53a5960a 7189 }
f7341ff4
FB		 7190 *q = NULL;
7191
da94d263 7192 for (gp = guest_envp, q = envp; gp;
992f48a0 7193 gp += sizeof(abi_ulong), q++) {
2f619698
FB		 7194 if (get_user_ual(addr, gp))
7195 goto execve_efault;
53a5960a
PB		 7196 if (!addr)
7197 break;
2f619698
FB		 7198 if (!(*q = lock_user_string(addr)))
7199 goto execve_efault;
a6f79cc9 7200 total_size += strlen(*q) + 1;
53a5960a 7201 }
f7341ff4 7202 *q = NULL;
7854b056 7203
2f619698
FB		 7204 if (!(p = lock_user_string(arg1)))
7205 goto execve_efault;
ffdcbe22
TB		 7206 /* Although execve() is not an interruptible syscall it is
7207 * a special case where we must use the safe_syscall wrapper:
7208 * if we allow a signal to happen before we make the host
7209 * syscall then we will 'lose' it, because at the point of
7210 * execve the process leaves QEMU's control. So we use the
7211 * safe syscall wrapper to ensure that we either take the
7212 * signal as a guest signal, or else it does not happen
7213 * before the execve completes and makes it the other
7214 * program's problem.
7215 */
7216 ret = get_errno(safe_execve(p, argp, envp));
53a5960a
PB		 7217 unlock_user(p, arg1, 0);
7218
2f619698
FB		 7219 goto execve_end;
7220
7221 execve_efault:
7222 ret = -TARGET_EFAULT;
7223
7224 execve_end:
53a5960a 7225 for (gp = guest_argp, q = argp; *q;
992f48a0 7226 gp += sizeof(abi_ulong), q++) {
2f619698
FB		 7227 if (get_user_ual(addr, gp)
7228 || !addr)
7229 break;
53a5960a
PB		 7230 unlock_user(*q, addr, 0);
7231 }
7232 for (gp = guest_envp, q = envp; *q;
992f48a0 7233 gp += sizeof(abi_ulong), q++) {
2f619698
FB		 7234 if (get_user_ual(addr, gp)
7235 || !addr)
7236 break;
53a5960a
PB		 7237 unlock_user(*q, addr, 0);
7238 }
b936cb50
PP		 7239
7240 g_free(argp);
7241 g_free(envp);
7854b056 7242 }
72eb7ea8 7243 return ret;
31e31b8a 7244 case TARGET_NR_chdir:
579a97f7 7245 if (!(p = lock_user_string(arg1)))
2852aafd 7246 return -TARGET_EFAULT;
53a5960a
PB		 7247 ret = get_errno(chdir(p));
7248 unlock_user(p, arg1, 0);
72eb7ea8 7249 return ret;
a315a145 7250#ifdef TARGET_NR_time
31e31b8a
FB		 7251 case TARGET_NR_time:
7252 {
53a5960a
PB		 7253 time_t host_time;
7254 ret = get_errno(time(&host_time));
2f619698
FB		 7255 if (!is_error(ret)
7256 && arg1
7257 && put_user_sal(host_time, arg1))
2852aafd 7258 return -TARGET_EFAULT;
31e31b8a 7259 }
72eb7ea8 7260 return ret;
a315a145 7261#endif
704eff6c 7262#ifdef TARGET_NR_mknod
31e31b8a 7263 case TARGET_NR_mknod:
579a97f7 7264 if (!(p = lock_user_string(arg1)))
2852aafd 7265 return -TARGET_EFAULT;
53a5960a
PB		 7266 ret = get_errno(mknod(p, arg2, arg3));
7267 unlock_user(p, arg1, 0);
72eb7ea8 7268 return ret;
704eff6c 7269#endif
c0d472b1 7270#if defined(TARGET_NR_mknodat)
75ac37a0 7271 case TARGET_NR_mknodat:
579a97f7 7272 if (!(p = lock_user_string(arg2)))
2852aafd 7273 return -TARGET_EFAULT;
c0d472b1 7274 ret = get_errno(mknodat(arg1, p, arg3, arg4));
579a97f7 7275 unlock_user(p, arg2, 0);
72eb7ea8 7276 return ret;
75ac37a0 7277#endif
704eff6c 7278#ifdef TARGET_NR_chmod
31e31b8a 7279 case TARGET_NR_chmod:
579a97f7 7280 if (!(p = lock_user_string(arg1)))
2852aafd 7281 return -TARGET_EFAULT;
53a5960a
PB		 7282 ret = get_errno(chmod(p, arg2));
7283 unlock_user(p, arg1, 0);
72eb7ea8 7284 return ret;
704eff6c 7285#endif
4f7f8924 7286#ifdef TARGET_NR_lseek
31e31b8a 7287 case TARGET_NR_lseek:
72eb7ea8 7288 return get_errno(lseek(arg1, arg2, arg3));
4f7f8924 7289#endif
9231733a
RH		 7290#if defined(TARGET_NR_getxpid) && defined(TARGET_ALPHA)
7291 /* Alpha specific */
7a3148a9 7292 case TARGET_NR_getxpid:
9231733a 7293 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = getppid();
72eb7ea8 7294 return get_errno(getpid());
7a3148a9 7295#endif
9231733a
RH		 7296#ifdef TARGET_NR_getpid
7297 case TARGET_NR_getpid:
72eb7ea8 7298 return get_errno(getpid());
9231733a 7299#endif
31e31b8a 7300 case TARGET_NR_mount:
356d771b
PB		 7301 {
7302 /* need to look at the data field */
7303 void *p2, *p3;
7304
7305 if (arg1) {
7306 p = lock_user_string(arg1);
7307 if (!p) {
2852aafd 7308 return -TARGET_EFAULT;
356d771b
PB		 7309 }
7310 } else {
7311 p = NULL;
7312 }
7313
7314 p2 = lock_user_string(arg2);
7315 if (!p2) {
7316 if (arg1) {
7317 unlock_user(p, arg1, 0);
7318 }
2852aafd 7319 return -TARGET_EFAULT;
356d771b
PB		 7320 }
7321
7322 if (arg3) {
7323 p3 = lock_user_string(arg3);
7324 if (!p3) {
7325 if (arg1) {
579a97f7 7326 unlock_user(p, arg1, 0);
356d771b
PB		 7327 }
7328 unlock_user(p2, arg2, 0);
2852aafd 7329 return -TARGET_EFAULT;
356d771b
PB		 7330 }
7331 } else {
7332 p3 = NULL;
7333 }
7334
7335 /* FIXME - arg5 should be locked, but it isn't clear how to
7336 * do that since it's not guaranteed to be a NULL-terminated
7337 * string.
7338 */
7339 if (!arg5) {
7340 ret = mount(p, p2, p3, (unsigned long)arg4, NULL);
7341 } else {
7342 ret = mount(p, p2, p3, (unsigned long)arg4, g2h(arg5));
7343 }
7344 ret = get_errno(ret);
7345
7346 if (arg1) {
7347 unlock_user(p, arg1, 0);
7348 }
7349 unlock_user(p2, arg2, 0);
7350 if (arg3) {
7351 unlock_user(p3, arg3, 0);
7352 }
7353 }
72eb7ea8 7354 return ret;
e5febef5 7355#ifdef TARGET_NR_umount
31e31b8a 7356 case TARGET_NR_umount:
579a97f7 7357 if (!(p = lock_user_string(arg1)))
2852aafd 7358 return -TARGET_EFAULT;
53a5960a
PB		 7359 ret = get_errno(umount(p));
7360 unlock_user(p, arg1, 0);
72eb7ea8 7361 return ret;
e5febef5 7362#endif
7a3148a9 7363#ifdef TARGET_NR_stime /* not on alpha */
31e31b8a
FB		 7364 case TARGET_NR_stime:
7365 {
53a5960a 7366 time_t host_time;
2f619698 7367 if (get_user_sal(host_time, arg1))
2852aafd 7368 return -TARGET_EFAULT;
72eb7ea8 7369 return get_errno(stime(&host_time));
31e31b8a 7370 }
7a3148a9 7371#endif
7a3148a9 7372#ifdef TARGET_NR_alarm /* not on alpha */
31e31b8a 7373 case TARGET_NR_alarm:
72eb7ea8 7374 return alarm(arg1);
7a3148a9 7375#endif
7a3148a9 7376#ifdef TARGET_NR_pause /* not on alpha */
31e31b8a 7377 case TARGET_NR_pause:
f59ec606
TB		 7378 if (!block_signals()) {
7379 sigsuspend(&((TaskState *)cpu->opaque)->signal_mask);
7380 }
72eb7ea8 7381 return -TARGET_EINTR;
7a3148a9 7382#endif
e5febef5 7383#ifdef TARGET_NR_utime
31e31b8a 7384 case TARGET_NR_utime:
ebc05488 7385 {
53a5960a
PB		 7386 struct utimbuf tbuf, *host_tbuf;
7387 struct target_utimbuf *target_tbuf;
7388 if (arg2) {
579a97f7 7389 if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1))
2852aafd 7390 return -TARGET_EFAULT;
cbb21eed
MB		 7391 tbuf.actime = tswapal(target_tbuf->actime);
7392 tbuf.modtime = tswapal(target_tbuf->modtime);
53a5960a
PB		 7393 unlock_user_struct(target_tbuf, arg2, 0);
7394 host_tbuf = &tbuf;
f72e8ff4 7395 } else {
53a5960a 7396 host_tbuf = NULL;
f72e8ff4 7397 }
579a97f7 7398 if (!(p = lock_user_string(arg1)))
2852aafd 7399 return -TARGET_EFAULT;
53a5960a
PB		 7400 ret = get_errno(utime(p, host_tbuf));
7401 unlock_user(p, arg1, 0);
ebc05488 7402 }
72eb7ea8 7403 return ret;
e5febef5 7404#endif
704eff6c 7405#ifdef TARGET_NR_utimes
978a66ff
FB		 7406 case TARGET_NR_utimes:
7407 {
978a66ff 7408 struct timeval *tvp, tv[2];
53a5960a 7409 if (arg2) {
788f5ec4
TS		 7410 if (copy_from_user_timeval(&tv[0], arg2)
7411 || copy_from_user_timeval(&tv[1],
7412 arg2 + sizeof(struct target_timeval)))
2852aafd 7413 return -TARGET_EFAULT;
978a66ff
FB		 7414 tvp = tv;
7415 } else {
7416 tvp = NULL;
7417 }
579a97f7 7418 if (!(p = lock_user_string(arg1)))
2852aafd 7419 return -TARGET_EFAULT;
53a5960a
PB		 7420 ret = get_errno(utimes(p, tvp));
7421 unlock_user(p, arg1, 0);
978a66ff 7422 }
72eb7ea8 7423 return ret;
704eff6c 7424#endif
c0d472b1 7425#if defined(TARGET_NR_futimesat)
ac8a6556
AZ		 7426 case TARGET_NR_futimesat:
7427 {
7428 struct timeval *tvp, tv[2];
7429 if (arg3) {
7430 if (copy_from_user_timeval(&tv[0], arg3)
7431 || copy_from_user_timeval(&tv[1],
7432 arg3 + sizeof(struct target_timeval)))
2852aafd 7433 return -TARGET_EFAULT;
ac8a6556
AZ		 7434 tvp = tv;
7435 } else {
7436 tvp = NULL;
7437 }
2852aafd
RH		 7438 if (!(p = lock_user_string(arg2))) {
7439 return -TARGET_EFAULT;
7440 }
c0d472b1 7441 ret = get_errno(futimesat(arg1, path(p), tvp));
ac8a6556
AZ		 7442 unlock_user(p, arg2, 0);
7443 }
72eb7ea8 7444 return ret;
ac8a6556 7445#endif
704eff6c 7446#ifdef TARGET_NR_access
31e31b8a 7447 case TARGET_NR_access:
2852aafd
RH		 7448 if (!(p = lock_user_string(arg1))) {
7449 return -TARGET_EFAULT;
7450 }
719f908e 7451 ret = get_errno(access(path(p), arg2));
53a5960a 7452 unlock_user(p, arg1, 0);
72eb7ea8 7453 return ret;
704eff6c 7454#endif
92a34c10
TS		 7455#if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
7456 case TARGET_NR_faccessat:
2852aafd
RH		 7457 if (!(p = lock_user_string(arg2))) {
7458 return -TARGET_EFAULT;
7459 }
c0d472b1 7460 ret = get_errno(faccessat(arg1, p, arg3, 0));
579a97f7 7461 unlock_user(p, arg2, 0);
72eb7ea8 7462 return ret;
92a34c10 7463#endif
7a3148a9 7464#ifdef TARGET_NR_nice /* not on alpha */
31e31b8a 7465 case TARGET_NR_nice:
72eb7ea8 7466 return get_errno(nice(arg1));
ebc05488 7467#endif
31e31b8a 7468 case TARGET_NR_sync:
04369ff2 7469 sync();
72eb7ea8 7470 return 0;
5a03cd00
AM		 7471#if defined(TARGET_NR_syncfs) && defined(CONFIG_SYNCFS)
7472 case TARGET_NR_syncfs:
72eb7ea8 7473 return get_errno(syncfs(arg1));
5a03cd00 7474#endif
31e31b8a 7475 case TARGET_NR_kill:
72eb7ea8 7476 return get_errno(safe_kill(arg1, target_to_host_signal(arg2)));
704eff6c 7477#ifdef TARGET_NR_rename
31e31b8a 7478 case TARGET_NR_rename:
53a5960a
PB		 7479 {
7480 void *p2;
7481 p = lock_user_string(arg1);
7482 p2 = lock_user_string(arg2);
579a97f7
FB		 7483 if (!p || !p2)
7484 ret = -TARGET_EFAULT;
7485 else
7486 ret = get_errno(rename(p, p2));
53a5960a
PB		 7487 unlock_user(p2, arg2, 0);
7488 unlock_user(p, arg1, 0);
7489 }
72eb7ea8 7490 return ret;
704eff6c 7491#endif
c0d472b1 7492#if defined(TARGET_NR_renameat)
722183f6 7493 case TARGET_NR_renameat:
722183f6 7494 {
579a97f7 7495 void *p2;
722183f6
TS		 7496 p = lock_user_string(arg2);
7497 p2 = lock_user_string(arg4);
579a97f7 7498 if (!p || !p2)
0da46a6e 7499 ret = -TARGET_EFAULT;
722183f6 7500 else
c0d472b1 7501 ret = get_errno(renameat(arg1, p, arg3, p2));
579a97f7
FB		 7502 unlock_user(p2, arg4, 0);
7503 unlock_user(p, arg2, 0);
722183f6 7504 }
72eb7ea8 7505 return ret;
95d0307c
AS		 7506#endif
7507#if defined(TARGET_NR_renameat2)
7508 case TARGET_NR_renameat2:
7509 {
7510 void *p2;
7511 p = lock_user_string(arg2);
7512 p2 = lock_user_string(arg4);
7513 if (!p || !p2) {
7514 ret = -TARGET_EFAULT;
7515 } else {
7516 ret = get_errno(sys_renameat2(arg1, p, arg3, p2, arg5));
7517 }
7518 unlock_user(p2, arg4, 0);
7519 unlock_user(p, arg2, 0);
7520 }
72eb7ea8 7521 return ret;
722183f6 7522#endif
704eff6c 7523#ifdef TARGET_NR_mkdir
31e31b8a 7524 case TARGET_NR_mkdir:
579a97f7 7525 if (!(p = lock_user_string(arg1)))
2852aafd 7526 return -TARGET_EFAULT;
53a5960a
PB		 7527 ret = get_errno(mkdir(p, arg2));
7528 unlock_user(p, arg1, 0);
72eb7ea8 7529 return ret;
704eff6c 7530#endif
c0d472b1 7531#if defined(TARGET_NR_mkdirat)
4472ad0d 7532 case TARGET_NR_mkdirat:
579a97f7 7533 if (!(p = lock_user_string(arg2)))
2852aafd 7534 return -TARGET_EFAULT;
c0d472b1 7535 ret = get_errno(mkdirat(arg1, p, arg3));
579a97f7 7536 unlock_user(p, arg2, 0);
72eb7ea8 7537 return ret;
4472ad0d 7538#endif
704eff6c 7539#ifdef TARGET_NR_rmdir
31e31b8a 7540 case TARGET_NR_rmdir:
579a97f7 7541 if (!(p = lock_user_string(arg1)))
2852aafd 7542 return -TARGET_EFAULT;
53a5960a
PB		 7543 ret = get_errno(rmdir(p));
7544 unlock_user(p, arg1, 0);
72eb7ea8 7545 return ret;
704eff6c 7546#endif
31e31b8a
FB		 7547 case TARGET_NR_dup:
7548 ret = get_errno(dup(arg1));
e36800c9
LV		 7549 if (ret >= 0) {
7550 fd_trans_dup(arg1, ret);
7551 }
72eb7ea8 7552 return ret;
704eff6c 7553#ifdef TARGET_NR_pipe
31e31b8a 7554 case TARGET_NR_pipe:
72eb7ea8 7555 return do_pipe(cpu_env, arg1, 0, 0);
704eff6c 7556#endif
099d6b0f
RV		 7557#ifdef TARGET_NR_pipe2
7558 case TARGET_NR_pipe2:
72eb7ea8
RH		 7559 return do_pipe(cpu_env, arg1,
7560 target_to_host_bitmask(arg2, fcntl_flags_tbl), 1);
099d6b0f 7561#endif
31e31b8a 7562 case TARGET_NR_times:
32f36bce 7563 {
53a5960a 7564 struct target_tms *tmsp;
32f36bce
FB		 7565 struct tms tms;
7566 ret = get_errno(times(&tms));
53a5960a 7567 if (arg1) {
579a97f7
FB		 7568 tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0);
7569 if (!tmsp)
2852aafd 7570 return -TARGET_EFAULT;
cbb21eed
MB		 7571 tmsp->tms_utime = tswapal(host_to_target_clock_t(tms.tms_utime));
7572 tmsp->tms_stime = tswapal(host_to_target_clock_t(tms.tms_stime));
7573 tmsp->tms_cutime = tswapal(host_to_target_clock_t(tms.tms_cutime));
7574 tmsp->tms_cstime = tswapal(host_to_target_clock_t(tms.tms_cstime));
32f36bce 7575 }
c596ed17
FB		 7576 if (!is_error(ret))
7577 ret = host_to_target_clock_t(ret);
32f36bce 7578 }
72eb7ea8 7579 return ret;
31e31b8a 7580 case TARGET_NR_acct:
38d840e6
AJ		 7581 if (arg1 == 0) {
7582 ret = get_errno(acct(NULL));
7583 } else {
2852aafd
RH		 7584 if (!(p = lock_user_string(arg1))) {
7585 return -TARGET_EFAULT;
7586 }
38d840e6
AJ		 7587 ret = get_errno(acct(path(p)));
7588 unlock_user(p, arg1, 0);
7589 }
72eb7ea8 7590 return ret;
8070e7be 7591#ifdef TARGET_NR_umount2
31e31b8a 7592 case TARGET_NR_umount2:
579a97f7 7593 if (!(p = lock_user_string(arg1)))
2852aafd 7594 return -TARGET_EFAULT;
53a5960a
PB		 7595 ret = get_errno(umount2(p, arg2));
7596 unlock_user(p, arg1, 0);
72eb7ea8 7597 return ret;
ebc05488 7598#endif
31e31b8a 7599 case TARGET_NR_ioctl:
72eb7ea8 7600 return do_ioctl(arg1, arg2, arg3);
47ae93cd 7601#ifdef TARGET_NR_fcntl
31e31b8a 7602 case TARGET_NR_fcntl:
72eb7ea8 7603 return do_fcntl(arg1, arg2, arg3);
ebc05488 7604#endif
31e31b8a 7605 case TARGET_NR_setpgid:
72eb7ea8 7606 return get_errno(setpgid(arg1, arg2));
31e31b8a 7607 case TARGET_NR_umask:
72eb7ea8 7608 return get_errno(umask(arg1));
31e31b8a 7609 case TARGET_NR_chroot:
579a97f7 7610 if (!(p = lock_user_string(arg1)))
2852aafd 7611 return -TARGET_EFAULT;
53a5960a
PB		 7612 ret = get_errno(chroot(p));
7613 unlock_user(p, arg1, 0);
72eb7ea8 7614 return ret;
704eff6c 7615#ifdef TARGET_NR_dup2
31e31b8a
FB		 7616 case TARGET_NR_dup2:
7617 ret = get_errno(dup2(arg1, arg2));
e36800c9
LV		 7618 if (ret >= 0) {
7619 fd_trans_dup(arg1, arg2);
7620 }
72eb7ea8 7621 return ret;
704eff6c 7622#endif
d0927938
UH		 7623#if defined(CONFIG_DUP3) && defined(TARGET_NR_dup3)
7624 case TARGET_NR_dup3:
10fa993a
PM		 7625 {
7626 int host_flags;
7627
7628 if ((arg3 & ~TARGET_O_CLOEXEC) != 0) {
7629 return -EINVAL;
7630 }
7631 host_flags = target_to_host_bitmask(arg3, fcntl_flags_tbl);
7632 ret = get_errno(dup3(arg1, arg2, host_flags));
e36800c9
LV		 7633 if (ret >= 0) {
7634 fd_trans_dup(arg1, arg2);
7635 }
72eb7ea8 7636 return ret;
10fa993a 7637 }
d0927938 7638#endif
7a3148a9 7639#ifdef TARGET_NR_getppid /* not on alpha */
31e31b8a 7640 case TARGET_NR_getppid:
72eb7ea8 7641 return get_errno(getppid());
7a3148a9 7642#endif
704eff6c 7643#ifdef TARGET_NR_getpgrp
31e31b8a 7644 case TARGET_NR_getpgrp:
72eb7ea8 7645 return get_errno(getpgrp());
704eff6c 7646#endif
31e31b8a 7647 case TARGET_NR_setsid:
72eb7ea8 7648 return get_errno(setsid());
e5febef5 7649#ifdef TARGET_NR_sigaction
31e31b8a 7650 case TARGET_NR_sigaction:
31e31b8a 7651 {
6049f4f8
RH		 7652#if defined(TARGET_ALPHA)
7653 struct target_sigaction act, oact, *pact = 0;
53a5960a 7654 struct target_old_sigaction *old_act;
53a5960a 7655 if (arg2) {
579a97f7 7656 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
2852aafd 7657 return -TARGET_EFAULT;
66fb9763
FB		 7658 act._sa_handler = old_act->_sa_handler;
7659 target_siginitset(&act.sa_mask, old_act->sa_mask);
7660 act.sa_flags = old_act->sa_flags;
6049f4f8 7661 act.sa_restorer = 0;
53a5960a 7662 unlock_user_struct(old_act, arg2, 0);
66fb9763 7663 pact = &act;
66fb9763
FB		 7664 }
7665 ret = get_errno(do_sigaction(arg1, pact, &oact));
53a5960a 7666 if (!is_error(ret) && arg3) {
579a97f7 7667 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
2852aafd 7668 return -TARGET_EFAULT;
53a5960a
PB		 7669 old_act->_sa_handler = oact._sa_handler;
7670 old_act->sa_mask = oact.sa_mask.sig[0];
7671 old_act->sa_flags = oact.sa_flags;
53a5960a 7672 unlock_user_struct(old_act, arg3, 1);
66fb9763 7673 }
6049f4f8 7674#elif defined(TARGET_MIPS)
106ec879
FB		 7675 struct target_sigaction act, oact, *pact, *old_act;
7676
7677 if (arg2) {
579a97f7 7678 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
2852aafd 7679 return -TARGET_EFAULT;
106ec879
FB		 7680 act._sa_handler = old_act->_sa_handler;
7681 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
7682 act.sa_flags = old_act->sa_flags;
7683 unlock_user_struct(old_act, arg2, 0);
7684 pact = &act;
7685 } else {
7686 pact = NULL;
7687 }
7688
7689 ret = get_errno(do_sigaction(arg1, pact, &oact));
7690
7691 if (!is_error(ret) && arg3) {
579a97f7 7692 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
2852aafd 7693 return -TARGET_EFAULT;
106ec879
FB		 7694 old_act->_sa_handler = oact._sa_handler;
7695 old_act->sa_flags = oact.sa_flags;
7696 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
7697 old_act->sa_mask.sig[1] = 0;
7698 old_act->sa_mask.sig[2] = 0;
7699 old_act->sa_mask.sig[3] = 0;
7700 unlock_user_struct(old_act, arg3, 1);
7701 }
6049f4f8
RH		 7702#else
7703 struct target_old_sigaction *old_act;
7704 struct target_sigaction act, oact, *pact;
7705 if (arg2) {
7706 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
2852aafd 7707 return -TARGET_EFAULT;
6049f4f8
RH		 7708 act._sa_handler = old_act->_sa_handler;
7709 target_siginitset(&act.sa_mask, old_act->sa_mask);
7710 act.sa_flags = old_act->sa_flags;
7711 act.sa_restorer = old_act->sa_restorer;
5de154e8
LV		 7712#ifdef TARGET_ARCH_HAS_KA_RESTORER
7713 act.ka_restorer = 0;
7714#endif
6049f4f8
RH		 7715 unlock_user_struct(old_act, arg2, 0);
7716 pact = &act;
7717 } else {
7718 pact = NULL;
7719 }
7720 ret = get_errno(do_sigaction(arg1, pact, &oact));
7721 if (!is_error(ret) && arg3) {
7722 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
2852aafd 7723 return -TARGET_EFAULT;
6049f4f8
RH		 7724 old_act->_sa_handler = oact._sa_handler;
7725 old_act->sa_mask = oact.sa_mask.sig[0];
7726 old_act->sa_flags = oact.sa_flags;
7727 old_act->sa_restorer = oact.sa_restorer;
7728 unlock_user_struct(old_act, arg3, 1);
7729 }
388bb21a 7730#endif
31e31b8a 7731 }
72eb7ea8 7732 return ret;
e5febef5 7733#endif
66fb9763 7734 case TARGET_NR_rt_sigaction:
53a5960a 7735 {
6049f4f8 7736#if defined(TARGET_ALPHA)
78bfef72
PM		 7737 /* For Alpha and SPARC this is a 5 argument syscall, with
7738 * a 'restorer' parameter which must be copied into the
7739 * sa_restorer field of the sigaction struct.
7740 * For Alpha that 'restorer' is arg5; for SPARC it is arg4,
7741 * and arg5 is the sigsetsize.
7742 * Alpha also has a separate rt_sigaction struct that it uses
7743 * here; SPARC uses the usual sigaction struct.
7744 */
6049f4f8 7745 struct target_rt_sigaction *rt_act;
78bfef72 7746 struct target_sigaction act, oact, *pact = 0;
c815701e
PM		 7747
7748 if (arg4 != sizeof(target_sigset_t)) {
72eb7ea8 7749 return -TARGET_EINVAL;
c815701e 7750 }
6049f4f8
RH		 7751 if (arg2) {
7752 if (!lock_user_struct(VERIFY_READ, rt_act, arg2, 1))
2852aafd 7753 return -TARGET_EFAULT;
6049f4f8
RH		 7754 act._sa_handler = rt_act->_sa_handler;
7755 act.sa_mask = rt_act->sa_mask;
7756 act.sa_flags = rt_act->sa_flags;
7757 act.sa_restorer = arg5;
7758 unlock_user_struct(rt_act, arg2, 0);
7759 pact = &act;
7760 }
7761 ret = get_errno(do_sigaction(arg1, pact, &oact));
7762 if (!is_error(ret) && arg3) {
7763 if (!lock_user_struct(VERIFY_WRITE, rt_act, arg3, 0))
2852aafd 7764 return -TARGET_EFAULT;
6049f4f8
RH		 7765 rt_act->_sa_handler = oact._sa_handler;
7766 rt_act->sa_mask = oact.sa_mask;
7767 rt_act->sa_flags = oact.sa_flags;
7768 unlock_user_struct(rt_act, arg3, 1);
7769 }
7770#else
78bfef72
PM		 7771#ifdef TARGET_SPARC
7772 target_ulong restorer = arg4;
7773 target_ulong sigsetsize = arg5;
7774#else
7775 target_ulong sigsetsize = arg4;
7776#endif
53a5960a
PB		 7777 struct target_sigaction *act;
7778 struct target_sigaction *oact;
7779
78bfef72 7780 if (sigsetsize != sizeof(target_sigset_t)) {
72eb7ea8 7781 return -TARGET_EINVAL;
c815701e 7782 }
579a97f7 7783 if (arg2) {
78bfef72 7784 if (!lock_user_struct(VERIFY_READ, act, arg2, 1)) {
2852aafd 7785 return -TARGET_EFAULT;
78bfef72 7786 }
5de154e8
LV		 7787#ifdef TARGET_ARCH_HAS_KA_RESTORER
7788 act->ka_restorer = restorer;
78bfef72
PM		 7789#endif
7790 } else {
53a5960a 7791 act = NULL;
78bfef72 7792 }
579a97f7
FB		 7793 if (arg3) {
7794 if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) {
7795 ret = -TARGET_EFAULT;
7796 goto rt_sigaction_fail;
7797 }
7798 } else
53a5960a
PB		 7799 oact = NULL;
7800 ret = get_errno(do_sigaction(arg1, act, oact));
579a97f7
FB		 7801 rt_sigaction_fail:
7802 if (act)
53a5960a 7803 unlock_user_struct(act, arg2, 0);
579a97f7 7804 if (oact)
53a5960a 7805 unlock_user_struct(oact, arg3, 1);
6049f4f8 7806#endif
53a5960a 7807 }
72eb7ea8 7808 return ret;
7a3148a9 7809#ifdef TARGET_NR_sgetmask /* not on alpha */
31e31b8a 7810 case TARGET_NR_sgetmask:
66fb9763
FB		 7811 {
7812 sigset_t cur_set;
992f48a0 7813 abi_ulong target_set;
3d3efba0
PM		 7814 ret = do_sigprocmask(0, NULL, &cur_set);
7815 if (!ret) {
7816 host_to_target_old_sigset(&target_set, &cur_set);
7817 ret = target_set;
7818 }
66fb9763 7819 }
72eb7ea8 7820 return ret;
7a3148a9
JM		 7821#endif
7822#ifdef TARGET_NR_ssetmask /* not on alpha */
31e31b8a 7823 case TARGET_NR_ssetmask:
66fb9763 7824 {
a8617d8c 7825 sigset_t set, oset;
992f48a0 7826 abi_ulong target_set = arg1;
66fb9763 7827 target_to_host_old_sigset(&set, &target_set);
3d3efba0
PM		 7828 ret = do_sigprocmask(SIG_SETMASK, &set, &oset);
7829 if (!ret) {
7830 host_to_target_old_sigset(&target_set, &oset);
7831 ret = target_set;
7832 }
66fb9763 7833 }
72eb7ea8 7834 return ret;
7a3148a9 7835#endif
e5febef5 7836#ifdef TARGET_NR_sigprocmask
66fb9763
FB		 7837 case TARGET_NR_sigprocmask:
7838 {
a5b3b13b
RH		 7839#if defined(TARGET_ALPHA)
7840 sigset_t set, oldset;
7841 abi_ulong mask;
7842 int how;
7843
7844 switch (arg1) {
7845 case TARGET_SIG_BLOCK:
7846 how = SIG_BLOCK;
7847 break;
7848 case TARGET_SIG_UNBLOCK:
7849 how = SIG_UNBLOCK;
7850 break;
7851 case TARGET_SIG_SETMASK:
7852 how = SIG_SETMASK;
7853 break;
7854 default:
259841c1 7855 return -TARGET_EINVAL;
a5b3b13b
RH		 7856 }
7857 mask = arg2;
7858 target_to_host_old_sigset(&set, &mask);
7859
3d3efba0 7860 ret = do_sigprocmask(how, &set, &oldset);
a5b3b13b
RH		 7861 if (!is_error(ret)) {
7862 host_to_target_old_sigset(&mask, &oldset);
7863 ret = mask;
0229f5a3 7864 ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0; /* force no error */
a5b3b13b
RH		 7865 }
7866#else
66fb9763 7867 sigset_t set, oldset, *set_ptr;
a5b3b13b 7868 int how;
3b46e624 7869
53a5960a 7870 if (arg2) {
a5b3b13b 7871 switch (arg1) {
66fb9763
FB		 7872 case TARGET_SIG_BLOCK:
7873 how = SIG_BLOCK;
7874 break;
7875 case TARGET_SIG_UNBLOCK:
7876 how = SIG_UNBLOCK;
7877 break;
7878 case TARGET_SIG_SETMASK:
7879 how = SIG_SETMASK;
7880 break;
7881 default:
259841c1 7882 return -TARGET_EINVAL;
66fb9763 7883 }
c227f099 7884 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
2852aafd 7885 return -TARGET_EFAULT;
53a5960a
PB		 7886 target_to_host_old_sigset(&set, p);
7887 unlock_user(p, arg2, 0);
66fb9763
FB		 7888 set_ptr = &set;
7889 } else {
7890 how = 0;
7891 set_ptr = NULL;
7892 }
3d3efba0 7893 ret = do_sigprocmask(how, set_ptr, &oldset);
53a5960a 7894 if (!is_error(ret) && arg3) {
c227f099 7895 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
2852aafd 7896 return -TARGET_EFAULT;
53a5960a 7897 host_to_target_old_sigset(p, &oldset);
c227f099 7898 unlock_user(p, arg3, sizeof(target_sigset_t));
66fb9763 7899 }
a5b3b13b 7900#endif
66fb9763 7901 }
72eb7ea8 7902 return ret;
e5febef5 7903#endif
66fb9763
FB		 7904 case TARGET_NR_rt_sigprocmask:
7905 {
7906 int how = arg1;
7907 sigset_t set, oldset, *set_ptr;
3b46e624 7908
c815701e 7909 if (arg4 != sizeof(target_sigset_t)) {
72eb7ea8 7910 return -TARGET_EINVAL;
c815701e
PM		 7911 }
7912
53a5960a 7913 if (arg2) {
66fb9763
FB		 7914 switch(how) {
7915 case TARGET_SIG_BLOCK:
7916 how = SIG_BLOCK;
7917 break;
7918 case TARGET_SIG_UNBLOCK:
7919 how = SIG_UNBLOCK;
7920 break;
7921 case TARGET_SIG_SETMASK:
7922 how = SIG_SETMASK;
7923 break;
7924 default:
259841c1 7925 return -TARGET_EINVAL;
66fb9763 7926 }
c227f099 7927 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
2852aafd 7928 return -TARGET_EFAULT;
53a5960a
PB		 7929 target_to_host_sigset(&set, p);
7930 unlock_user(p, arg2, 0);
66fb9763
FB		 7931 set_ptr = &set;
7932 } else {
7933 how = 0;
7934 set_ptr = NULL;
7935 }
3d3efba0 7936 ret = do_sigprocmask(how, set_ptr, &oldset);
53a5960a 7937 if (!is_error(ret) && arg3) {
c227f099 7938 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
2852aafd 7939 return -TARGET_EFAULT;
53a5960a 7940 host_to_target_sigset(p, &oldset);
c227f099 7941 unlock_user(p, arg3, sizeof(target_sigset_t));
66fb9763
FB		 7942 }
7943 }
72eb7ea8 7944 return ret;
e5febef5 7945#ifdef TARGET_NR_sigpending
66fb9763
FB		 7946 case TARGET_NR_sigpending:
7947 {
7948 sigset_t set;
7949 ret = get_errno(sigpending(&set));
7950 if (!is_error(ret)) {
c227f099 7951 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
2852aafd 7952 return -TARGET_EFAULT;
53a5960a 7953 host_to_target_old_sigset(p, &set);
c227f099 7954 unlock_user(p, arg1, sizeof(target_sigset_t));
66fb9763
FB		 7955 }
7956 }
72eb7ea8 7957 return ret;
e5febef5 7958#endif
66fb9763
FB		 7959 case TARGET_NR_rt_sigpending:
7960 {
7961 sigset_t set;
c815701e
PM		 7962
7963 /* Yes, this check is >, not != like most. We follow the kernel's
7964 * logic and it does it like this because it implements
7965 * NR_sigpending through the same code path, and in that case
7966 * the old_sigset_t is smaller in size.
7967 */
7968 if (arg2 > sizeof(target_sigset_t)) {
72eb7ea8 7969 return -TARGET_EINVAL;
c815701e
PM		 7970 }
7971
66fb9763
FB		 7972 ret = get_errno(sigpending(&set));
7973 if (!is_error(ret)) {
c227f099 7974 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
2852aafd 7975 return -TARGET_EFAULT;
53a5960a 7976 host_to_target_sigset(p, &set);
c227f099 7977 unlock_user(p, arg1, sizeof(target_sigset_t));
66fb9763
FB		 7978 }
7979 }
72eb7ea8 7980 return ret;
e5febef5 7981#ifdef TARGET_NR_sigsuspend
66fb9763
FB		 7982 case TARGET_NR_sigsuspend:
7983 {
3d3efba0 7984 TaskState *ts = cpu->opaque;
f43ce12b
RH		 7985#if defined(TARGET_ALPHA)
7986 abi_ulong mask = arg1;
3d3efba0 7987 target_to_host_old_sigset(&ts->sigsuspend_mask, &mask);
f43ce12b 7988#else
c227f099 7989 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
2852aafd 7990 return -TARGET_EFAULT;
3d3efba0 7991 target_to_host_old_sigset(&ts->sigsuspend_mask, p);
53a5960a 7992 unlock_user(p, arg1, 0);
f43ce12b 7993#endif
3d3efba0
PM		 7994 ret = get_errno(safe_rt_sigsuspend(&ts->sigsuspend_mask,
7995 SIGSET_T_SIZE));
7996 if (ret != -TARGET_ERESTARTSYS) {
7997 ts->in_sigsuspend = 1;
7998 }
66fb9763 7999 }
72eb7ea8 8000 return ret;
e5febef5 8001#endif
66fb9763
FB		 8002 case TARGET_NR_rt_sigsuspend:
8003 {
3d3efba0 8004 TaskState *ts = cpu->opaque;
c815701e
PM		 8005
8006 if (arg2 != sizeof(target_sigset_t)) {
72eb7ea8 8007 return -TARGET_EINVAL;
c815701e 8008 }
c227f099 8009 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
2852aafd 8010 return -TARGET_EFAULT;
3d3efba0 8011 target_to_host_sigset(&ts->sigsuspend_mask, p);
53a5960a 8012 unlock_user(p, arg1, 0);
3d3efba0
PM		 8013 ret = get_errno(safe_rt_sigsuspend(&ts->sigsuspend_mask,
8014 SIGSET_T_SIZE));
8015 if (ret != -TARGET_ERESTARTSYS) {
8016 ts->in_sigsuspend = 1;
8017 }
66fb9763 8018 }
72eb7ea8 8019 return ret;
66fb9763
FB		 8020 case TARGET_NR_rt_sigtimedwait:
8021 {
66fb9763
FB		 8022 sigset_t set;
8023 struct timespec uts, *puts;
8024 siginfo_t uinfo;
3b46e624 8025
c815701e 8026 if (arg4 != sizeof(target_sigset_t)) {
72eb7ea8 8027 return -TARGET_EINVAL;
c815701e
PM		 8028 }
8029
c227f099 8030 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
2852aafd 8031 return -TARGET_EFAULT;
53a5960a
PB		 8032 target_to_host_sigset(&set, p);
8033 unlock_user(p, arg1, 0);
8034 if (arg3) {
66fb9763 8035 puts = &uts;
53a5960a 8036 target_to_host_timespec(puts, arg3);
66fb9763
FB		 8037 } else {
8038 puts = NULL;
8039 }
b3f82330
PM		 8040 ret = get_errno(safe_rt_sigtimedwait(&set, &uinfo, puts,
8041 SIGSET_T_SIZE));
974a196d
PJ		 8042 if (!is_error(ret)) {
8043 if (arg2) {
8044 p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t),
8045 0);
8046 if (!p) {
2852aafd 8047 return -TARGET_EFAULT;
974a196d
PJ		 8048 }
8049 host_to_target_siginfo(p, &uinfo);
8050 unlock_user(p, arg2, sizeof(target_siginfo_t));
8051 }
8052 ret = host_to_target_signal(ret);
66fb9763
FB		 8053 }
8054 }
72eb7ea8 8055 return ret;
66fb9763
FB		 8056 case TARGET_NR_rt_sigqueueinfo:
8057 {
8058 siginfo_t uinfo;
4debae6f
PM		 8059
8060 p = lock_user(VERIFY_READ, arg3, sizeof(target_siginfo_t), 1);
8061 if (!p) {
2852aafd 8062 return -TARGET_EFAULT;
4debae6f 8063 }
53a5960a 8064 target_to_host_siginfo(&uinfo, p);
d8b6d892 8065 unlock_user(p, arg3, 0);
66fb9763
FB		 8066 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
8067 }
72eb7ea8 8068 return ret;
cf8b8bfc
MS		 8069 case TARGET_NR_rt_tgsigqueueinfo:
8070 {
8071 siginfo_t uinfo;
8072
8073 p = lock_user(VERIFY_READ, arg4, sizeof(target_siginfo_t), 1);
8074 if (!p) {
2852aafd 8075 return -TARGET_EFAULT;
cf8b8bfc
MS		 8076 }
8077 target_to_host_siginfo(&uinfo, p);
8078 unlock_user(p, arg4, 0);
8079 ret = get_errno(sys_rt_tgsigqueueinfo(arg1, arg2, arg3, &uinfo));
8080 }
72eb7ea8 8081 return ret;
e5febef5 8082#ifdef TARGET_NR_sigreturn
66fb9763 8083 case TARGET_NR_sigreturn:
3d3efba0 8084 if (block_signals()) {
72eb7ea8 8085 return -TARGET_ERESTARTSYS;
3d3efba0 8086 }
72eb7ea8 8087 return do_sigreturn(cpu_env);
e5febef5 8088#endif
66fb9763 8089 case TARGET_NR_rt_sigreturn:
3d3efba0 8090 if (block_signals()) {
72eb7ea8 8091 return -TARGET_ERESTARTSYS;
3d3efba0 8092 }
72eb7ea8 8093 return do_rt_sigreturn(cpu_env);
31e31b8a 8094 case TARGET_NR_sethostname:
579a97f7 8095 if (!(p = lock_user_string(arg1)))
2852aafd 8096 return -TARGET_EFAULT;
53a5960a
PB		 8097 ret = get_errno(sethostname(p, arg2));
8098 unlock_user(p, arg1, 0);
72eb7ea8 8099 return ret;
4f7f8924 8100#ifdef TARGET_NR_setrlimit
31e31b8a 8101 case TARGET_NR_setrlimit:
9de5e440 8102 {
e22b7015 8103 int resource = target_to_host_resource(arg1);
53a5960a 8104 struct target_rlimit *target_rlim;
9de5e440 8105 struct rlimit rlim;
579a97f7 8106 if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1))
2852aafd 8107 return -TARGET_EFAULT;
81bbe906
TY		 8108 rlim.rlim_cur = target_to_host_rlim(target_rlim->rlim_cur);
8109 rlim.rlim_max = target_to_host_rlim(target_rlim->rlim_max);
53a5960a 8110 unlock_user_struct(target_rlim, arg2, 0);
5dfa88f7
MF		 8111 /*
8112 * If we just passed through resource limit settings for memory then
8113 * they would also apply to QEMU's own allocations, and QEMU will
8114 * crash or hang or die if its allocations fail. Ideally we would
8115 * track the guest allocations in QEMU and apply the limits ourselves.
8116 * For now, just tell the guest the call succeeded but don't actually
8117 * limit anything.
8118 */
8119 if (resource != RLIMIT_AS &&
8120 resource != RLIMIT_DATA &&
8121 resource != RLIMIT_STACK) {
8122 return get_errno(setrlimit(resource, &rlim));
8123 } else {
8124 return 0;
8125 }
9de5e440 8126 }
4f7f8924
AR		 8127#endif
8128#ifdef TARGET_NR_getrlimit
31e31b8a 8129 case TARGET_NR_getrlimit:
9de5e440 8130 {
e22b7015 8131 int resource = target_to_host_resource(arg1);
53a5960a 8132 struct target_rlimit *target_rlim;
9de5e440 8133 struct rlimit rlim;
3b46e624 8134
9de5e440
FB		 8135 ret = get_errno(getrlimit(resource, &rlim));
8136 if (!is_error(ret)) {
579a97f7 8137 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
2852aafd 8138 return -TARGET_EFAULT;
81bbe906
TY		 8139 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
8140 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
53a5960a 8141 unlock_user_struct(target_rlim, arg2, 1);
9de5e440
FB		 8142 }
8143 }
72eb7ea8 8144 return ret;
4f7f8924 8145#endif
31e31b8a 8146 case TARGET_NR_getrusage:
b409186b
FB		 8147 {
8148 struct rusage rusage;
b409186b
FB		 8149 ret = get_errno(getrusage(arg1, &rusage));
8150 if (!is_error(ret)) {
a39fb273 8151 ret = host_to_target_rusage(arg2, &rusage);
b409186b
FB		 8152 }
8153 }
72eb7ea8 8154 return ret;
31e31b8a
FB		 8155 case TARGET_NR_gettimeofday:
8156 {
31e31b8a
FB		 8157 struct timeval tv;
8158 ret = get_errno(gettimeofday(&tv, NULL));
8159 if (!is_error(ret)) {
788f5ec4 8160 if (copy_to_user_timeval(arg1, &tv))
2852aafd 8161 return -TARGET_EFAULT;
31e31b8a
FB		 8162 }
8163 }
72eb7ea8 8164 return ret;
31e31b8a
FB		 8165 case TARGET_NR_settimeofday:
8166 {
b67d8031 8167 struct timeval tv, *ptv = NULL;
ef4467e9
PB		 8168 struct timezone tz, *ptz = NULL;
8169
b67d8031
PB		 8170 if (arg1) {
8171 if (copy_from_user_timeval(&tv, arg1)) {
2852aafd 8172 return -TARGET_EFAULT;
b67d8031
PB		 8173 }
8174 ptv = &tv;
8175 }
ef4467e9
PB		 8176
8177 if (arg2) {
8178 if (copy_from_user_timezone(&tz, arg2)) {
2852aafd 8179 return -TARGET_EFAULT;
ef4467e9
PB		 8180 }
8181 ptz = &tz;
8182 }
8183
72eb7ea8 8184 return get_errno(settimeofday(ptv, ptz));
31e31b8a 8185 }
9468a5d4 8186#if defined(TARGET_NR_select)
31e31b8a 8187 case TARGET_NR_select:
5457dc9e
LV		 8188#if defined(TARGET_WANT_NI_OLD_SELECT)
8189 /* some architectures used to have old_select here
8190 * but now ENOSYS it.
8191 */
8192 ret = -TARGET_ENOSYS;
8193#elif defined(TARGET_WANT_OLD_SYS_SELECT)
8194 ret = do_old_select(arg1);
9468a5d4 8195#else
5457dc9e 8196 ret = do_select(arg1, arg2, arg3, arg4, arg5);
9468a5d4 8197#endif
72eb7ea8 8198 return ret;
9e42382f
RV		 8199#endif
8200#ifdef TARGET_NR_pselect6
8201 case TARGET_NR_pselect6:
055e0906
MF		 8202 {
8203 abi_long rfd_addr, wfd_addr, efd_addr, n, ts_addr;
8204 fd_set rfds, wfds, efds;
8205 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
8206 struct timespec ts, *ts_ptr;
8207
8208 /*
8209 * The 6th arg is actually two args smashed together,
8210 * so we cannot use the C library.
8211 */
8212 sigset_t set;
8213 struct {
8214 sigset_t *set;
8215 size_t size;
8216 } sig, *sig_ptr;
8217
8218 abi_ulong arg_sigset, arg_sigsize, *arg7;
8219 target_sigset_t *target_sigset;
8220
8221 n = arg1;
8222 rfd_addr = arg2;
8223 wfd_addr = arg3;
8224 efd_addr = arg4;
8225 ts_addr = arg5;
8226
8227 ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n);
8228 if (ret) {
259841c1 8229 return ret;
055e0906
MF		 8230 }
8231 ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n);
8232 if (ret) {
259841c1 8233 return ret;
055e0906
MF		 8234 }
8235 ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n);
8236 if (ret) {
259841c1 8237 return ret;
055e0906
MF		 8238 }
8239
8240 /*
8241 * This takes a timespec, and not a timeval, so we cannot
8242 * use the do_select() helper ...
8243 */
8244 if (ts_addr) {
8245 if (target_to_host_timespec(&ts, ts_addr)) {
2852aafd 8246 return -TARGET_EFAULT;
055e0906
MF		 8247 }
8248 ts_ptr = &ts;
8249 } else {
8250 ts_ptr = NULL;
8251 }
8252
8253 /* Extract the two packed args for the sigset */
8254 if (arg6) {
8255 sig_ptr = &sig;
b28a1f33 8256 sig.size = SIGSET_T_SIZE;
055e0906
MF		 8257
8258 arg7 = lock_user(VERIFY_READ, arg6, sizeof(*arg7) * 2, 1);
8259 if (!arg7) {
2852aafd 8260 return -TARGET_EFAULT;
055e0906 8261 }
cbb21eed
MB		 8262 arg_sigset = tswapal(arg7[0]);
8263 arg_sigsize = tswapal(arg7[1]);
055e0906
MF		 8264 unlock_user(arg7, arg6, 0);
8265
8266 if (arg_sigset) {
8267 sig.set = &set;
8f04eeb3
PM		 8268 if (arg_sigsize != sizeof(*target_sigset)) {
8269 /* Like the kernel, we enforce correct size sigsets */
259841c1 8270 return -TARGET_EINVAL;
8f04eeb3 8271 }
055e0906
MF		 8272 target_sigset = lock_user(VERIFY_READ, arg_sigset,
8273 sizeof(*target_sigset), 1);
8274 if (!target_sigset) {
2852aafd 8275 return -TARGET_EFAULT;
055e0906
MF		 8276 }
8277 target_to_host_sigset(&set, target_sigset);
8278 unlock_user(target_sigset, arg_sigset, 0);
8279 } else {
8280 sig.set = NULL;
8281 }
8282 } else {
8283 sig_ptr = NULL;
8284 }
8285
6df9d38d
PM		 8286 ret = get_errno(safe_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr,
8287 ts_ptr, sig_ptr));
055e0906
MF		 8288
8289 if (!is_error(ret)) {
8290 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
2852aafd 8291 return -TARGET_EFAULT;
055e0906 8292 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
2852aafd 8293 return -TARGET_EFAULT;
055e0906 8294 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
2852aafd 8295 return -TARGET_EFAULT;
055e0906
MF		 8296
8297 if (ts_addr && host_to_target_timespec(ts_addr, &ts))
2852aafd 8298 return -TARGET_EFAULT;
055e0906
MF		 8299 }
8300 }
72eb7ea8 8301 return ret;
048f6b4d 8302#endif
704eff6c 8303#ifdef TARGET_NR_symlink
31e31b8a 8304 case TARGET_NR_symlink:
53a5960a
PB		 8305 {
8306 void *p2;
8307 p = lock_user_string(arg1);
8308 p2 = lock_user_string(arg2);
579a97f7
FB		 8309 if (!p || !p2)
8310 ret = -TARGET_EFAULT;
8311 else
8312 ret = get_errno(symlink(p, p2));
53a5960a
PB		 8313 unlock_user(p2, arg2, 0);
8314 unlock_user(p, arg1, 0);
8315 }
72eb7ea8 8316 return ret;
704eff6c 8317#endif
c0d472b1 8318#if defined(TARGET_NR_symlinkat)
f0b6243d 8319 case TARGET_NR_symlinkat:
f0b6243d 8320 {
579a97f7 8321 void *p2;
f0b6243d
TS		 8322 p = lock_user_string(arg1);
8323 p2 = lock_user_string(arg3);
579a97f7 8324 if (!p || !p2)
0da46a6e 8325 ret = -TARGET_EFAULT;
f0b6243d 8326 else
c0d472b1 8327 ret = get_errno(symlinkat(p, arg2, p2));
579a97f7
FB		 8328 unlock_user(p2, arg3, 0);
8329 unlock_user(p, arg1, 0);
f0b6243d 8330 }
72eb7ea8 8331 return ret;
f0b6243d 8332#endif
704eff6c 8333#ifdef TARGET_NR_readlink
31e31b8a 8334 case TARGET_NR_readlink:
53a5960a 8335 {
463d8e73 8336 void *p2;
53a5960a 8337 p = lock_user_string(arg1);
579a97f7 8338 p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0);
463d8e73 8339 if (!p || !p2) {
579a97f7 8340 ret = -TARGET_EFAULT;
f17f4989
MF		 8341 } else if (!arg3) {
8342 /* Short circuit this for the magic exe check. */
8343 ret = -TARGET_EINVAL;
463d8e73
AS		 8344 } else if (is_proc_myself((const char *)p, "exe")) {
8345 char real[PATH_MAX], *temp;
8346 temp = realpath(exec_path, real);
f17f4989
MF		 8347 /* Return value is # of bytes that we wrote to the buffer. */
8348 if (temp == NULL) {
8349 ret = get_errno(-1);
8350 } else {
8351 /* Don't worry about sign mismatch as earlier mapping
8352 * logic would have thrown a bad address error. */
8353 ret = MIN(strlen(real), arg3);
8354 /* We cannot NUL terminate the string. */
8355 memcpy(p2, real, ret);
8356 }
463d8e73
AS		 8357 } else {
8358 ret = get_errno(readlink(path(p), p2, arg3));
d088d664 8359 }
53a5960a
PB		 8360 unlock_user(p2, arg2, ret);
8361 unlock_user(p, arg1, 0);
8362 }
72eb7ea8 8363 return ret;
704eff6c 8364#endif
c0d472b1 8365#if defined(TARGET_NR_readlinkat)
5e0ccb18 8366 case TARGET_NR_readlinkat:
5e0ccb18 8367 {
579a97f7 8368 void *p2;
5e0ccb18 8369 p = lock_user_string(arg2);
579a97f7 8370 p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0);
463d8e73
AS		 8371 if (!p || !p2) {
8372 ret = -TARGET_EFAULT;
8373 } else if (is_proc_myself((const char *)p, "exe")) {
8374 char real[PATH_MAX], *temp;
8375 temp = realpath(exec_path, real);
8376 ret = temp == NULL ? get_errno(-1) : strlen(real) ;
8377 snprintf((char *)p2, arg4, "%s", real);
8378 } else {
c0d472b1 8379 ret = get_errno(readlinkat(arg1, path(p), p2, arg4));
463d8e73 8380 }
579a97f7
FB		 8381 unlock_user(p2, arg3, ret);
8382 unlock_user(p, arg2, 0);
5e0ccb18 8383 }
72eb7ea8 8384 return ret;
5e0ccb18 8385#endif
e5febef5 8386#ifdef TARGET_NR_swapon
31e31b8a 8387 case TARGET_NR_swapon:
579a97f7 8388 if (!(p = lock_user_string(arg1)))
2852aafd 8389 return -TARGET_EFAULT;
53a5960a
PB		 8390 ret = get_errno(swapon(p, arg2));
8391 unlock_user(p, arg1, 0);
72eb7ea8 8392 return ret;
e5febef5 8393#endif
31e31b8a 8394 case TARGET_NR_reboot:
c07ecc68
LV		 8395 if (arg3 == LINUX_REBOOT_CMD_RESTART2) {
8396 /* arg4 must be ignored in all other cases */
8397 p = lock_user_string(arg4);
8398 if (!p) {
2852aafd 8399 return -TARGET_EFAULT;
c07ecc68
LV		 8400 }
8401 ret = get_errno(reboot(arg1, arg2, arg3, p));
8402 unlock_user(p, arg4, 0);
8403 } else {
8404 ret = get_errno(reboot(arg1, arg2, arg3, NULL));
8405 }
72eb7ea8 8406 return ret;
e5febef5 8407#ifdef TARGET_NR_mmap
31e31b8a 8408 case TARGET_NR_mmap:
09701199
AG		 8409#if (defined(TARGET_I386) && defined(TARGET_ABI32)) || \
8410 (defined(TARGET_ARM) && defined(TARGET_ABI32)) || \
a4c075f1
UH		 8411 defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE) \
8412 || defined(TARGET_S390X)
31e31b8a 8413 {
992f48a0
BS		 8414 abi_ulong *v;
8415 abi_ulong v1, v2, v3, v4, v5, v6;
579a97f7 8416 if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1)))
2852aafd 8417 return -TARGET_EFAULT;
cbb21eed
MB		 8418 v1 = tswapal(v[0]);
8419 v2 = tswapal(v[1]);
8420 v3 = tswapal(v[2]);
8421 v4 = tswapal(v[3]);
8422 v5 = tswapal(v[4]);
8423 v6 = tswapal(v[5]);
53a5960a 8424 unlock_user(v, arg1, 0);
5fafdf24 8425 ret = get_errno(target_mmap(v1, v2, v3,
5286db75
FB		 8426 target_to_host_bitmask(v4, mmap_flags_tbl),
8427 v5, v6));
31e31b8a 8428 }
31e31b8a 8429#else
5fafdf24
TS		 8430 ret = get_errno(target_mmap(arg1, arg2, arg3,
8431 target_to_host_bitmask(arg4, mmap_flags_tbl),
6fb883e8
FB		 8432 arg5,
8433 arg6));
31e31b8a 8434#endif
72eb7ea8 8435 return ret;
e5febef5 8436#endif
a315a145 8437#ifdef TARGET_NR_mmap2
6fb883e8 8438 case TARGET_NR_mmap2:
bb7ec043 8439#ifndef MMAP_SHIFT
c573ff67 8440#define MMAP_SHIFT 12
c573ff67 8441#endif
72eb7ea8
RH		 8442 ret = target_mmap(arg1, arg2, arg3,
8443 target_to_host_bitmask(arg4, mmap_flags_tbl),
8444 arg5, arg6 << MMAP_SHIFT);
8445 return get_errno(ret);
a315a145 8446#endif
31e31b8a 8447 case TARGET_NR_munmap:
72eb7ea8 8448 return get_errno(target_munmap(arg1, arg2));
9de5e440 8449 case TARGET_NR_mprotect:
97374d38 8450 {
0429a971 8451 TaskState *ts = cpu->opaque;
97374d38
PB		 8452 /* Special hack to detect libc making the stack executable. */
8453 if ((arg3 & PROT_GROWSDOWN)
8454 && arg1 >= ts->info->stack_limit
8455 && arg1 <= ts->info->start_stack) {
8456 arg3 &= ~PROT_GROWSDOWN;
8457 arg2 = arg2 + arg1 - ts->info->stack_limit;
8458 arg1 = ts->info->stack_limit;
8459 }
8460 }
72eb7ea8 8461 return get_errno(target_mprotect(arg1, arg2, arg3));
e5febef5 8462#ifdef TARGET_NR_mremap
9de5e440 8463 case TARGET_NR_mremap:
72eb7ea8 8464 return get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
e5febef5 8465#endif
53a5960a 8466 /* ??? msync/mlock/munlock are broken for softmmu. */
e5febef5 8467#ifdef TARGET_NR_msync
9de5e440 8468 case TARGET_NR_msync:
72eb7ea8 8469 return get_errno(msync(g2h(arg1), arg2, arg3));
e5febef5
TS		 8470#endif
8471#ifdef TARGET_NR_mlock
9de5e440 8472 case TARGET_NR_mlock:
72eb7ea8 8473 return get_errno(mlock(g2h(arg1), arg2));
e5febef5
TS		 8474#endif
8475#ifdef TARGET_NR_munlock
9de5e440 8476 case TARGET_NR_munlock:
72eb7ea8 8477 return get_errno(munlock(g2h(arg1), arg2));
e5febef5
TS		 8478#endif
8479#ifdef TARGET_NR_mlockall
9de5e440 8480 case TARGET_NR_mlockall:
72eb7ea8 8481 return get_errno(mlockall(target_to_host_mlockall_arg(arg1)));
e5febef5
TS		 8482#endif
8483#ifdef TARGET_NR_munlockall
9de5e440 8484 case TARGET_NR_munlockall:
72eb7ea8 8485 return get_errno(munlockall());
e5febef5 8486#endif
4f7f8924 8487#ifdef TARGET_NR_truncate
31e31b8a 8488 case TARGET_NR_truncate:
579a97f7 8489 if (!(p = lock_user_string(arg1)))
2852aafd 8490 return -TARGET_EFAULT;
53a5960a
PB		 8491 ret = get_errno(truncate(p, arg2));
8492 unlock_user(p, arg1, 0);
72eb7ea8 8493 return ret;
4f7f8924
AR		 8494#endif
8495#ifdef TARGET_NR_ftruncate
31e31b8a 8496 case TARGET_NR_ftruncate:
72eb7ea8 8497 return get_errno(ftruncate(arg1, arg2));
4f7f8924 8498#endif
31e31b8a 8499 case TARGET_NR_fchmod:
72eb7ea8 8500 return get_errno(fchmod(arg1, arg2));
c0d472b1 8501#if defined(TARGET_NR_fchmodat)
814d7977 8502 case TARGET_NR_fchmodat:
579a97f7 8503 if (!(p = lock_user_string(arg2)))
2852aafd 8504 return -TARGET_EFAULT;
c0d472b1 8505 ret = get_errno(fchmodat(arg1, p, arg3, 0));
579a97f7 8506 unlock_user(p, arg2, 0);
72eb7ea8 8507 return ret;
814d7977 8508#endif
31e31b8a 8509 case TARGET_NR_getpriority:
95c09828
RH		 8510 /* Note that negative values are valid for getpriority, so we must
8511 differentiate based on errno settings. */
8512 errno = 0;
8513 ret = getpriority(arg1, arg2);
8514 if (ret == -1 && errno != 0) {
72eb7ea8 8515 return -host_to_target_errno(errno);
95c09828
RH		 8516 }
8517#ifdef TARGET_ALPHA
8518 /* Return value is the unbiased priority. Signal no error. */
8519 ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0;
8520#else
8521 /* Return value is a biased priority to avoid negative numbers. */
8522 ret = 20 - ret;
8523#endif
72eb7ea8 8524 return ret;
31e31b8a 8525 case TARGET_NR_setpriority:
72eb7ea8 8526 return get_errno(setpriority(arg1, arg2, arg3));
4f7f8924 8527#ifdef TARGET_NR_statfs
31e31b8a 8528 case TARGET_NR_statfs:
2852aafd
RH		 8529 if (!(p = lock_user_string(arg1))) {
8530 return -TARGET_EFAULT;
8531 }
53a5960a
PB		 8532 ret = get_errno(statfs(path(p), &stfs));
8533 unlock_user(p, arg1, 0);
31e31b8a
FB		 8534 convert_statfs:
8535 if (!is_error(ret)) {
53a5960a 8536 struct target_statfs *target_stfs;
3b46e624 8537
579a97f7 8538 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0))
2852aafd 8539 return -TARGET_EFAULT;
579a97f7
FB		 8540 __put_user(stfs.f_type, &target_stfs->f_type);
8541 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
8542 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
8543 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
8544 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
8545 __put_user(stfs.f_files, &target_stfs->f_files);
8546 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
8547 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
8548 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
8549 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
229d3376 8550 __put_user(stfs.f_frsize, &target_stfs->f_frsize);
d4247ec2
SL		 8551#ifdef _STATFS_F_FLAGS
8552 __put_user(stfs.f_flags, &target_stfs->f_flags);
8553#else
8554 __put_user(0, &target_stfs->f_flags);
8555#endif
229d3376 8556 memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare));
53a5960a 8557 unlock_user_struct(target_stfs, arg2, 1);
31e31b8a 8558 }
72eb7ea8 8559 return ret;
4f7f8924
AR		 8560#endif
8561#ifdef TARGET_NR_fstatfs
31e31b8a 8562 case TARGET_NR_fstatfs:
56c8f68f 8563 ret = get_errno(fstatfs(arg1, &stfs));
31e31b8a 8564 goto convert_statfs;
4f7f8924 8565#endif
56c8f68f
FB		 8566#ifdef TARGET_NR_statfs64
8567 case TARGET_NR_statfs64:
2852aafd
RH		 8568 if (!(p = lock_user_string(arg1))) {
8569 return -TARGET_EFAULT;
8570 }
53a5960a
PB		 8571 ret = get_errno(statfs(path(p), &stfs));
8572 unlock_user(p, arg1, 0);
56c8f68f
FB		 8573 convert_statfs64:
8574 if (!is_error(ret)) {
53a5960a 8575 struct target_statfs64 *target_stfs;
3b46e624 8576
579a97f7 8577 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0))
2852aafd 8578 return -TARGET_EFAULT;
579a97f7
FB		 8579 __put_user(stfs.f_type, &target_stfs->f_type);
8580 __put_user(stfs.f_bsize, &target_stfs->f_bsize);
8581 __put_user(stfs.f_blocks, &target_stfs->f_blocks);
8582 __put_user(stfs.f_bfree, &target_stfs->f_bfree);
8583 __put_user(stfs.f_bavail, &target_stfs->f_bavail);
8584 __put_user(stfs.f_files, &target_stfs->f_files);
8585 __put_user(stfs.f_ffree, &target_stfs->f_ffree);
8586 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
8587 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
8588 __put_user(stfs.f_namelen, &target_stfs->f_namelen);
229d3376
AG		 8589 __put_user(stfs.f_frsize, &target_stfs->f_frsize);
8590 memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare));
579a97f7 8591 unlock_user_struct(target_stfs, arg3, 1);
56c8f68f 8592 }
72eb7ea8 8593 return ret;
56c8f68f
FB		 8594 case TARGET_NR_fstatfs64:
8595 ret = get_errno(fstatfs(arg1, &stfs));
8596 goto convert_statfs64;
8597#endif
e5febef5 8598#ifdef TARGET_NR_socketcall
31e31b8a 8599 case TARGET_NR_socketcall:
72eb7ea8 8600 return do_socketcall(arg1, arg2);
e5febef5 8601#endif
3532fa74
FB		 8602#ifdef TARGET_NR_accept
8603 case TARGET_NR_accept:
72eb7ea8 8604 return do_accept4(arg1, arg2, arg3, 0);
a94b4987
PM		 8605#endif
8606#ifdef TARGET_NR_accept4
8607 case TARGET_NR_accept4:
72eb7ea8 8608 return do_accept4(arg1, arg2, arg3, arg4);
3532fa74
FB		 8609#endif
8610#ifdef TARGET_NR_bind
8611 case TARGET_NR_bind:
72eb7ea8 8612 return do_bind(arg1, arg2, arg3);
3532fa74
FB		 8613#endif
8614#ifdef TARGET_NR_connect
8615 case TARGET_NR_connect:
72eb7ea8 8616 return do_connect(arg1, arg2, arg3);
3532fa74
FB		 8617#endif
8618#ifdef TARGET_NR_getpeername
8619 case TARGET_NR_getpeername:
72eb7ea8 8620 return do_getpeername(arg1, arg2, arg3);
3532fa74
FB		 8621#endif
8622#ifdef TARGET_NR_getsockname
8623 case TARGET_NR_getsockname:
72eb7ea8 8624 return do_getsockname(arg1, arg2, arg3);
3532fa74
FB		 8625#endif
8626#ifdef TARGET_NR_getsockopt
8627 case TARGET_NR_getsockopt:
72eb7ea8 8628 return do_getsockopt(arg1, arg2, arg3, arg4, arg5);
3532fa74
FB		 8629#endif
8630#ifdef TARGET_NR_listen
8631 case TARGET_NR_listen:
72eb7ea8 8632 return get_errno(listen(arg1, arg2));
3532fa74
FB		 8633#endif
8634#ifdef TARGET_NR_recv
8635 case TARGET_NR_recv:
72eb7ea8 8636 return do_recvfrom(arg1, arg2, arg3, arg4, 0, 0);
3532fa74
FB		 8637#endif
8638#ifdef TARGET_NR_recvfrom
8639 case TARGET_NR_recvfrom:
72eb7ea8 8640 return do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6);
3532fa74
FB		 8641#endif
8642#ifdef TARGET_NR_recvmsg
8643 case TARGET_NR_recvmsg:
72eb7ea8 8644 return do_sendrecvmsg(arg1, arg2, arg3, 0);
3532fa74
FB		 8645#endif
8646#ifdef TARGET_NR_send
8647 case TARGET_NR_send:
72eb7ea8 8648 return do_sendto(arg1, arg2, arg3, arg4, 0, 0);
3532fa74
FB		 8649#endif
8650#ifdef TARGET_NR_sendmsg
8651 case TARGET_NR_sendmsg:
72eb7ea8 8652 return do_sendrecvmsg(arg1, arg2, arg3, 1);
3532fa74 8653#endif
f19e00d7
AG		 8654#ifdef TARGET_NR_sendmmsg
8655 case TARGET_NR_sendmmsg:
72eb7ea8 8656 return do_sendrecvmmsg(arg1, arg2, arg3, arg4, 1);
f19e00d7 8657 case TARGET_NR_recvmmsg:
72eb7ea8 8658 return do_sendrecvmmsg(arg1, arg2, arg3, arg4, 0);
f19e00d7 8659#endif
3532fa74
FB		 8660#ifdef TARGET_NR_sendto
8661 case TARGET_NR_sendto:
72eb7ea8 8662 return do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
3532fa74
FB		 8663#endif
8664#ifdef TARGET_NR_shutdown
8665 case TARGET_NR_shutdown:
72eb7ea8 8666 return get_errno(shutdown(arg1, arg2));
3532fa74 8667#endif
f894efd1
LV		 8668#if defined(TARGET_NR_getrandom) && defined(__NR_getrandom)
8669 case TARGET_NR_getrandom:
8670 p = lock_user(VERIFY_WRITE, arg1, arg2, 0);
8671 if (!p) {
2852aafd 8672 return -TARGET_EFAULT;
f894efd1
LV		 8673 }
8674 ret = get_errno(getrandom(p, arg2, arg3));
8675 unlock_user(p, arg1, ret);
72eb7ea8 8676 return ret;
f894efd1 8677#endif
3532fa74
FB		 8678#ifdef TARGET_NR_socket
8679 case TARGET_NR_socket:
72eb7ea8 8680 return do_socket(arg1, arg2, arg3);
3532fa74
FB		 8681#endif
8682#ifdef TARGET_NR_socketpair
8683 case TARGET_NR_socketpair:
72eb7ea8 8684 return do_socketpair(arg1, arg2, arg3, arg4);
3532fa74
FB		 8685#endif
8686#ifdef TARGET_NR_setsockopt
8687 case TARGET_NR_setsockopt:
72eb7ea8 8688 return do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
3532fa74 8689#endif
da2c8ad7 8690#if defined(TARGET_NR_syslog)
31e31b8a 8691 case TARGET_NR_syslog:
da2c8ad7
AM		 8692 {
8693 int len = arg2;
7494b0f9 8694
da2c8ad7
AM		 8695 switch (arg1) {
8696 case TARGET_SYSLOG_ACTION_CLOSE: /* Close log */
8697 case TARGET_SYSLOG_ACTION_OPEN: /* Open log */
8698 case TARGET_SYSLOG_ACTION_CLEAR: /* Clear ring buffer */
8699 case TARGET_SYSLOG_ACTION_CONSOLE_OFF: /* Disable logging */
8700 case TARGET_SYSLOG_ACTION_CONSOLE_ON: /* Enable logging */
8701 case TARGET_SYSLOG_ACTION_CONSOLE_LEVEL: /* Set messages level */
8702 case TARGET_SYSLOG_ACTION_SIZE_UNREAD: /* Number of chars */
8703 case TARGET_SYSLOG_ACTION_SIZE_BUFFER: /* Size of the buffer */
72eb7ea8 8704 return get_errno(sys_syslog((int)arg1, NULL, (int)arg3));
da2c8ad7
AM		 8705 case TARGET_SYSLOG_ACTION_READ: /* Read from log */
8706 case TARGET_SYSLOG_ACTION_READ_CLEAR: /* Read/clear msgs */
8707 case TARGET_SYSLOG_ACTION_READ_ALL: /* Read last messages */
8708 {
da2c8ad7 8709 if (len < 0) {
259841c1 8710 return -TARGET_EINVAL;
da2c8ad7 8711 }
da2c8ad7 8712 if (len == 0) {
72eb7ea8 8713 return 0;
da2c8ad7
AM		 8714 }
8715 p = lock_user(VERIFY_WRITE, arg2, arg3, 0);
8716 if (!p) {
259841c1 8717 return -TARGET_EFAULT;
da2c8ad7
AM		 8718 }
8719 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));
8720 unlock_user(p, arg2, arg3);
8721 }
72eb7ea8 8722 return ret;
da2c8ad7 8723 default:
72eb7ea8 8724 return -TARGET_EINVAL;
da2c8ad7
AM		 8725 }
8726 }
8727 break;
8728#endif
31e31b8a 8729 case TARGET_NR_setitimer:
66fb9763 8730 {
66fb9763
FB		 8731 struct itimerval value, ovalue, *pvalue;
8732
53a5960a 8733 if (arg2) {
66fb9763 8734 pvalue = &value;
788f5ec4
TS		 8735 if (copy_from_user_timeval(&pvalue->it_interval, arg2)
8736 || copy_from_user_timeval(&pvalue->it_value,
8737 arg2 + sizeof(struct target_timeval)))
2852aafd 8738 return -TARGET_EFAULT;
66fb9763
FB		 8739 } else {
8740 pvalue = NULL;
8741 }
8742 ret = get_errno(setitimer(arg1, pvalue, &ovalue));
53a5960a 8743 if (!is_error(ret) && arg3) {
788f5ec4
TS		 8744 if (copy_to_user_timeval(arg3,
8745 &ovalue.it_interval)
8746 || copy_to_user_timeval(arg3 + sizeof(struct target_timeval),
8747 &ovalue.it_value))
2852aafd 8748 return -TARGET_EFAULT;
66fb9763
FB		 8749 }
8750 }
72eb7ea8 8751 return ret;
31e31b8a 8752 case TARGET_NR_getitimer:
66fb9763 8753 {
66fb9763 8754 struct itimerval value;
3b46e624 8755
66fb9763 8756 ret = get_errno(getitimer(arg1, &value));
53a5960a 8757 if (!is_error(ret) && arg2) {
788f5ec4
TS		 8758 if (copy_to_user_timeval(arg2,
8759 &value.it_interval)
8760 || copy_to_user_timeval(arg2 + sizeof(struct target_timeval),
8761 &value.it_value))
2852aafd 8762 return -TARGET_EFAULT;
66fb9763
FB		 8763 }
8764 }
72eb7ea8 8765 return ret;
704eff6c 8766#ifdef TARGET_NR_stat
31e31b8a 8767 case TARGET_NR_stat:
2852aafd
RH		 8768 if (!(p = lock_user_string(arg1))) {
8769 return -TARGET_EFAULT;
8770 }
53a5960a
PB		 8771 ret = get_errno(stat(path(p), &st));
8772 unlock_user(p, arg1, 0);
31e31b8a 8773 goto do_stat;
704eff6c
CG		 8774#endif
8775#ifdef TARGET_NR_lstat
31e31b8a 8776 case TARGET_NR_lstat:
2852aafd
RH		 8777 if (!(p = lock_user_string(arg1))) {
8778 return -TARGET_EFAULT;
8779 }
53a5960a
PB		 8780 ret = get_errno(lstat(path(p), &st));
8781 unlock_user(p, arg1, 0);
31e31b8a 8782 goto do_stat;
704eff6c 8783#endif
4f7f8924 8784#ifdef TARGET_NR_fstat
31e31b8a
FB		 8785 case TARGET_NR_fstat:
8786 {
8787 ret = get_errno(fstat(arg1, &st));
704eff6c 8788#if defined(TARGET_NR_stat) || defined(TARGET_NR_lstat)
31e31b8a 8789 do_stat:
704eff6c 8790#endif
31e31b8a 8791 if (!is_error(ret)) {
53a5960a 8792 struct target_stat *target_st;
e3584658 8793
579a97f7 8794 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0))
2852aafd 8795 return -TARGET_EFAULT;
12727917 8796 memset(target_st, 0, sizeof(*target_st));
d2fd1af7
FB		 8797 __put_user(st.st_dev, &target_st->st_dev);
8798 __put_user(st.st_ino, &target_st->st_ino);
8799 __put_user(st.st_mode, &target_st->st_mode);
8800 __put_user(st.st_uid, &target_st->st_uid);
8801 __put_user(st.st_gid, &target_st->st_gid);
8802 __put_user(st.st_nlink, &target_st->st_nlink);
8803 __put_user(st.st_rdev, &target_st->st_rdev);
8804 __put_user(st.st_size, &target_st->st_size);
8805 __put_user(st.st_blksize, &target_st->st_blksize);
8806 __put_user(st.st_blocks, &target_st->st_blocks);
8807 __put_user(st.st_atime, &target_st->target_st_atime);
8808 __put_user(st.st_mtime, &target_st->target_st_mtime);
8809 __put_user(st.st_ctime, &target_st->target_st_ctime);
53a5960a 8810 unlock_user_struct(target_st, arg2, 1);
31e31b8a
FB		 8811 }
8812 }
72eb7ea8 8813 return ret;
ebc05488 8814#endif
31e31b8a 8815 case TARGET_NR_vhangup:
72eb7ea8 8816 return get_errno(vhangup());
42ad6ae9
FB		 8817#ifdef TARGET_NR_syscall
8818 case TARGET_NR_syscall:
72eb7ea8
RH		 8819 return do_syscall(cpu_env, arg1 & 0xffff, arg2, arg3, arg4, arg5,
8820 arg6, arg7, arg8, 0);
ebc05488 8821#endif
31e31b8a
FB		 8822 case TARGET_NR_wait4:
8823 {
8824 int status;
992f48a0 8825 abi_long status_ptr = arg2;
31e31b8a 8826 struct rusage rusage, *rusage_ptr;
992f48a0 8827 abi_ulong target_rusage = arg4;
a39fb273 8828 abi_long rusage_err;
31e31b8a
FB		 8829 if (target_rusage)
8830 rusage_ptr = &rusage;
8831 else
8832 rusage_ptr = NULL;
4af80a37 8833 ret = get_errno(safe_wait4(arg1, &status, arg3, rusage_ptr));
31e31b8a 8834 if (!is_error(ret)) {
5379557b 8835 if (status_ptr && ret) {
1d9d8b55 8836 status = host_to_target_waitstatus(status);
2f619698 8837 if (put_user_s32(status, status_ptr))
2852aafd 8838 return -TARGET_EFAULT;
31e31b8a 8839 }
a39fb273
PJ		 8840 if (target_rusage) {
8841 rusage_err = host_to_target_rusage(target_rusage, &rusage);
8842 if (rusage_err) {
8843 ret = rusage_err;
8844 }
8845 }
31e31b8a
FB		 8846 }
8847 }
72eb7ea8 8848 return ret;
e5febef5 8849#ifdef TARGET_NR_swapoff
31e31b8a 8850 case TARGET_NR_swapoff:
579a97f7 8851 if (!(p = lock_user_string(arg1)))
2852aafd 8852 return -TARGET_EFAULT;
53a5960a
PB		 8853 ret = get_errno(swapoff(p));
8854 unlock_user(p, arg1, 0);
72eb7ea8 8855 return ret;
e5febef5 8856#endif
31e31b8a 8857 case TARGET_NR_sysinfo:
a5448a7d 8858 {
53a5960a 8859 struct target_sysinfo *target_value;
a5448a7d
FB		 8860 struct sysinfo value;
8861 ret = get_errno(sysinfo(&value));
53a5960a 8862 if (!is_error(ret) && arg1)
a5448a7d 8863 {
579a97f7 8864 if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0))
2852aafd 8865 return -TARGET_EFAULT;
a5448a7d
FB		 8866 __put_user(value.uptime, &target_value->uptime);
8867 __put_user(value.loads[0], &target_value->loads[0]);
8868 __put_user(value.loads[1], &target_value->loads[1]);
8869 __put_user(value.loads[2], &target_value->loads[2]);
8870 __put_user(value.totalram, &target_value->totalram);
8871 __put_user(value.freeram, &target_value->freeram);
8872 __put_user(value.sharedram, &target_value->sharedram);
8873 __put_user(value.bufferram, &target_value->bufferram);
8874 __put_user(value.totalswap, &target_value->totalswap);
8875 __put_user(value.freeswap, &target_value->freeswap);
8876 __put_user(value.procs, &target_value->procs);
8877 __put_user(value.totalhigh, &target_value->totalhigh);
8878 __put_user(value.freehigh, &target_value->freehigh);
8879 __put_user(value.mem_unit, &target_value->mem_unit);
53a5960a 8880 unlock_user_struct(target_value, arg1, 1);
a5448a7d
FB		 8881 }
8882 }
72eb7ea8 8883 return ret;
e5febef5 8884#ifdef TARGET_NR_ipc
31e31b8a 8885 case TARGET_NR_ipc:
72eb7ea8 8886 return do_ipc(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6);
e5febef5 8887#endif
e5289087
AJ		 8888#ifdef TARGET_NR_semget
8889 case TARGET_NR_semget:
72eb7ea8 8890 return get_errno(semget(arg1, arg2, arg3));
e5289087
AJ		 8891#endif
8892#ifdef TARGET_NR_semop
8893 case TARGET_NR_semop:
72eb7ea8 8894 return do_semop(arg1, arg2, arg3);
e5289087
AJ		 8895#endif
8896#ifdef TARGET_NR_semctl
8897 case TARGET_NR_semctl:
72eb7ea8 8898 return do_semctl(arg1, arg2, arg3, arg4);
e5289087 8899#endif
eeb438c1
AJ		 8900#ifdef TARGET_NR_msgctl
8901 case TARGET_NR_msgctl:
72eb7ea8 8902 return do_msgctl(arg1, arg2, arg3);
eeb438c1
AJ		 8903#endif
8904#ifdef TARGET_NR_msgget
8905 case TARGET_NR_msgget:
72eb7ea8 8906 return get_errno(msgget(arg1, arg2));
eeb438c1
AJ		 8907#endif
8908#ifdef TARGET_NR_msgrcv
8909 case TARGET_NR_msgrcv:
72eb7ea8 8910 return do_msgrcv(arg1, arg2, arg3, arg4, arg5);
eeb438c1
AJ		 8911#endif
8912#ifdef TARGET_NR_msgsnd
8913 case TARGET_NR_msgsnd:
72eb7ea8 8914 return do_msgsnd(arg1, arg2, arg3, arg4);
88a8c984
RV		 8915#endif
8916#ifdef TARGET_NR_shmget
8917 case TARGET_NR_shmget:
72eb7ea8 8918 return get_errno(shmget(arg1, arg2, arg3));
88a8c984
RV		 8919#endif
8920#ifdef TARGET_NR_shmctl
8921 case TARGET_NR_shmctl:
72eb7ea8 8922 return do_shmctl(arg1, arg2, arg3);
88a8c984
RV		 8923#endif
8924#ifdef TARGET_NR_shmat
8925 case TARGET_NR_shmat:
72eb7ea8 8926 return do_shmat(cpu_env, arg1, arg2, arg3);
88a8c984
RV		 8927#endif
8928#ifdef TARGET_NR_shmdt
8929 case TARGET_NR_shmdt:
72eb7ea8 8930 return do_shmdt(arg1);
eeb438c1 8931#endif
31e31b8a 8932 case TARGET_NR_fsync:
72eb7ea8 8933 return get_errno(fsync(arg1));
31e31b8a 8934 case TARGET_NR_clone:
4ce6243d
PM		 8935 /* Linux manages to have three different orderings for its
8936 * arguments to clone(); the BACKWARDS and BACKWARDS2 defines
8937 * match the kernel's CONFIG_CLONE_* settings.
8938 * Microblaze is further special in that it uses a sixth
8939 * implicit argument to clone for the TLS pointer.
8940 */
8941#if defined(TARGET_MICROBLAZE)
a5b3bdcb 8942 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg4, arg6, arg5));
4ce6243d
PM		 8943#elif defined(TARGET_CLONE_BACKWARDS)
8944 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg4, arg5));
8945#elif defined(TARGET_CLONE_BACKWARDS2)
a4c075f1 8946 ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg5, arg4));
0b6d3ae0 8947#else
4ce6243d 8948 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg5, arg4));
0b6d3ae0 8949#endif
72eb7ea8 8950 return ret;
ec86b0fb
FB		 8951#ifdef __NR_exit_group
8952 /* new thread calls */
8953 case TARGET_NR_exit_group:
708b6a64 8954 preexit_cleanup(cpu_env, arg1);
72eb7ea8 8955 return get_errno(exit_group(arg1));
ec86b0fb 8956#endif
31e31b8a 8957 case TARGET_NR_setdomainname:
579a97f7 8958 if (!(p = lock_user_string(arg1)))
2852aafd 8959 return -TARGET_EFAULT;
53a5960a
PB		 8960 ret = get_errno(setdomainname(p, arg2));
8961 unlock_user(p, arg1, 0);
72eb7ea8 8962 return ret;
31e31b8a
FB		 8963 case TARGET_NR_uname:
8964 /* no need to transcode because we use the linux syscall */
29e619b1
FB		 8965 {
8966 struct new_utsname * buf;
3b46e624 8967
579a97f7 8968 if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0))
2852aafd 8969 return -TARGET_EFAULT;
29e619b1
FB		 8970 ret = get_errno(sys_uname(buf));
8971 if (!is_error(ret)) {
332c9781 8972 /* Overwrite the native machine name with whatever is being
29e619b1 8973 emulated. */
871f95c6
PMD		 8974 g_strlcpy(buf->machine, cpu_to_uname_machine(cpu_env),
8975 sizeof(buf->machine));
c5937220 8976 /* Allow the user to override the reported release. */
332c9781
PM		 8977 if (qemu_uname_release && *qemu_uname_release) {
8978 g_strlcpy(buf->release, qemu_uname_release,
8979 sizeof(buf->release));
8980 }
29e619b1 8981 }
53a5960a 8982 unlock_user_struct(buf, arg1, 1);
29e619b1 8983 }
72eb7ea8 8984 return ret;
6dbad63e 8985#ifdef TARGET_I386
31e31b8a 8986 case TARGET_NR_modify_ldt:
72eb7ea8 8987 return do_modify_ldt(cpu_env, arg1, arg2, arg3);
84409ddb 8988#if !defined(TARGET_X86_64)
5cd4393b 8989 case TARGET_NR_vm86:
72eb7ea8 8990 return do_vm86(cpu_env, arg1, arg2);
84409ddb 8991#endif
6dbad63e 8992#endif
31e31b8a 8993 case TARGET_NR_adjtimex:
19f59bce
AM		 8994 {
8995 struct timex host_buf;
8996
8997 if (target_to_host_timex(&host_buf, arg1) != 0) {
2852aafd 8998 return -TARGET_EFAULT;
19f59bce
AM		 8999 }
9000 ret = get_errno(adjtimex(&host_buf));
9001 if (!is_error(ret)) {
9002 if (host_to_target_timex(arg1, &host_buf) != 0) {
2852aafd 9003 return -TARGET_EFAULT;
19f59bce
AM		 9004 }
9005 }
9006 }
72eb7ea8 9007 return ret;
38860a03
AM		 9008#if defined(TARGET_NR_clock_adjtime) && defined(CONFIG_CLOCK_ADJTIME)
9009 case TARGET_NR_clock_adjtime:
9010 {
9011 struct timex htx, *phtx = &htx;
9012
9013 if (target_to_host_timex(phtx, arg2) != 0) {
2852aafd 9014 return -TARGET_EFAULT;
38860a03
AM		 9015 }
9016 ret = get_errno(clock_adjtime(arg1, phtx));
9017 if (!is_error(ret) && phtx) {
9018 if (host_to_target_timex(arg2, phtx) != 0) {
2852aafd 9019 return -TARGET_EFAULT;
38860a03
AM		 9020 }
9021 }
9022 }
72eb7ea8 9023 return ret;
38860a03 9024#endif
31e31b8a 9025 case TARGET_NR_getpgid:
72eb7ea8 9026 return get_errno(getpgid(arg1));
31e31b8a 9027 case TARGET_NR_fchdir:
72eb7ea8 9028 return get_errno(fchdir(arg1));
31e31b8a 9029 case TARGET_NR_personality:
72eb7ea8 9030 return get_errno(personality(arg1));
7a3148a9 9031#ifdef TARGET_NR__llseek /* Not on alpha */
31e31b8a
FB		 9032 case TARGET_NR__llseek:
9033 {
0c1592d9 9034 int64_t res;
d35b261c 9035#if !defined(__NR_llseek)
9fea273c 9036 res = lseek(arg1, ((uint64_t)arg2 << 32) | (abi_ulong)arg3, arg5);
0c1592d9
PM		 9037 if (res == -1) {
9038 ret = get_errno(res);
9039 } else {
9040 ret = 0;
9041 }
4f2ac237 9042#else
31e31b8a 9043 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
4f2ac237 9044#endif
0c1592d9 9045 if ((ret == 0) && put_user_s64(res, arg4)) {
2852aafd 9046 return -TARGET_EFAULT;
0c1592d9 9047 }
31e31b8a 9048 }
72eb7ea8 9049 return ret;
7a3148a9 9050#endif
704eff6c 9051#ifdef TARGET_NR_getdents
31e31b8a 9052 case TARGET_NR_getdents:
2b3f64cb 9053#ifdef EMULATE_GETDENTS_WITH_GETDENTS
d83c8733 9054#if TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64
4add45b4 9055 {
53a5960a 9056 struct target_dirent *target_dirp;
6556a833 9057 struct linux_dirent *dirp;
992f48a0 9058 abi_long count = arg3;
4add45b4 9059
0e173b24
HK		 9060 dirp = g_try_malloc(count);
9061 if (!dirp) {
259841c1 9062 return -TARGET_ENOMEM;
0da46a6e 9063 }
3b46e624 9064
4add45b4
FB		 9065 ret = get_errno(sys_getdents(arg1, dirp, count));
9066 if (!is_error(ret)) {
6556a833 9067 struct linux_dirent *de;
4add45b4
FB		 9068 struct target_dirent *tde;
9069 int len = ret;
9070 int reclen, treclen;
9071 int count1, tnamelen;
9072
9073 count1 = 0;
9074 de = dirp;
579a97f7 9075 if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
2852aafd 9076 return -TARGET_EFAULT;
4add45b4
FB		 9077 tde = target_dirp;
9078 while (len > 0) {
9079 reclen = de->d_reclen;
333858b7
DL		 9080 tnamelen = reclen - offsetof(struct linux_dirent, d_name);
9081 assert(tnamelen >= 0);
9082 treclen = tnamelen + offsetof(struct target_dirent, d_name);
9083 assert(count1 + treclen <= count);
4add45b4 9084 tde->d_reclen = tswap16(treclen);
cbb21eed
MB		 9085 tde->d_ino = tswapal(de->d_ino);
9086 tde->d_off = tswapal(de->d_off);
333858b7 9087 memcpy(tde->d_name, de->d_name, tnamelen);
6556a833 9088 de = (struct linux_dirent *)((char *)de + reclen);
4add45b4 9089 len -= reclen;
1c5bf3bf 9090 tde = (struct target_dirent *)((char *)tde + treclen);
4add45b4
FB		 9091 count1 += treclen;
9092 }
9093 ret = count1;
579a97f7 9094 unlock_user(target_dirp, arg2, ret);
4add45b4 9095 }
0e173b24 9096 g_free(dirp);
4add45b4
FB		 9097 }
9098#else
31e31b8a 9099 {
6556a833 9100 struct linux_dirent *dirp;
992f48a0 9101 abi_long count = arg3;
dab2ed99 9102
579a97f7 9103 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
2852aafd 9104 return -TARGET_EFAULT;
72f03900 9105 ret = get_errno(sys_getdents(arg1, dirp, count));
31e31b8a 9106 if (!is_error(ret)) {
6556a833 9107 struct linux_dirent *de;
31e31b8a
FB		 9108 int len = ret;
9109 int reclen;
9110 de = dirp;
9111 while (len > 0) {
8083a3e5 9112 reclen = de->d_reclen;
31e31b8a
FB		 9113 if (reclen > len)
9114 break;
8083a3e5 9115 de->d_reclen = tswap16(reclen);
31e31b8a
FB		 9116 tswapls(&de->d_ino);
9117 tswapls(&de->d_off);
6556a833 9118 de = (struct linux_dirent *)((char *)de + reclen);
31e31b8a
FB		 9119 len -= reclen;
9120 }
9121 }
53a5960a 9122 unlock_user(dirp, arg2, ret);
3307e236
PM		 9123 }
9124#endif
9125#else
9126 /* Implement getdents in terms of getdents64 */
9127 {
9128 struct linux_dirent64 *dirp;
9129 abi_long count = arg3;
9130
9131 dirp = lock_user(VERIFY_WRITE, arg2, count, 0);
9132 if (!dirp) {
2852aafd 9133 return -TARGET_EFAULT;
3307e236
PM		 9134 }
9135 ret = get_errno(sys_getdents64(arg1, dirp, count));
9136 if (!is_error(ret)) {
9137 /* Convert the dirent64 structs to target dirent. We do this
9138 * in-place, since we can guarantee that a target_dirent is no
9139 * larger than a dirent64; however this means we have to be
9140 * careful to read everything before writing in the new format.
9141 */
9142 struct linux_dirent64 *de;
9143 struct target_dirent *tde;
9144 int len = ret;
9145 int tlen = 0;
9146
9147 de = dirp;
9148 tde = (struct target_dirent *)dirp;
9149 while (len > 0) {
9150 int namelen, treclen;
9151 int reclen = de->d_reclen;
9152 uint64_t ino = de->d_ino;
9153 int64_t off = de->d_off;
9154 uint8_t type = de->d_type;
9155
9156 namelen = strlen(de->d_name);
9157 treclen = offsetof(struct target_dirent, d_name)
9158 + namelen + 2;
9159 treclen = QEMU_ALIGN_UP(treclen, sizeof(abi_long));
9160
9161 memmove(tde->d_name, de->d_name, namelen + 1);
9162 tde->d_ino = tswapal(ino);
9163 tde->d_off = tswapal(off);
9164 tde->d_reclen = tswap16(treclen);
9165 /* The target_dirent type is in what was formerly a padding
9166 * byte at the end of the structure:
9167 */
9168 *(((char *)tde) + treclen - 1) = type;
9169
9170 de = (struct linux_dirent64 *)((char *)de + reclen);
9171 tde = (struct target_dirent *)((char *)tde + treclen);
9172 len -= reclen;
9173 tlen += treclen;
9174 }
9175 ret = tlen;
9176 }
9177 unlock_user(dirp, arg2, ret);
31e31b8a 9178 }
4add45b4 9179#endif
72eb7ea8 9180 return ret;
704eff6c 9181#endif /* TARGET_NR_getdents */
3ae43202 9182#if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
dab2ed99
FB		 9183 case TARGET_NR_getdents64:
9184 {
6556a833 9185 struct linux_dirent64 *dirp;
992f48a0 9186 abi_long count = arg3;
579a97f7 9187 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
2852aafd 9188 return -TARGET_EFAULT;
dab2ed99
FB		 9189 ret = get_errno(sys_getdents64(arg1, dirp, count));
9190 if (!is_error(ret)) {
6556a833 9191 struct linux_dirent64 *de;
dab2ed99
FB		 9192 int len = ret;
9193 int reclen;
9194 de = dirp;
9195 while (len > 0) {
8083a3e5 9196 reclen = de->d_reclen;
dab2ed99
FB		 9197 if (reclen > len)
9198 break;
8083a3e5 9199 de->d_reclen = tswap16(reclen);
8582a53a
FB		 9200 tswap64s((uint64_t *)&de->d_ino);
9201 tswap64s((uint64_t *)&de->d_off);
6556a833 9202 de = (struct linux_dirent64 *)((char *)de + reclen);
dab2ed99
FB		 9203 len -= reclen;
9204 }
9205 }
53a5960a 9206 unlock_user(dirp, arg2, ret);
dab2ed99 9207 }
72eb7ea8 9208 return ret;
a541f297 9209#endif /* TARGET_NR_getdents64 */
9468a5d4 9210#if defined(TARGET_NR__newselect)
31e31b8a 9211 case TARGET_NR__newselect:
72eb7ea8 9212 return do_select(arg1, arg2, arg3, arg4, arg5);
e5febef5 9213#endif
d8035d4c
MF		 9214#if defined(TARGET_NR_poll) || defined(TARGET_NR_ppoll)
9215# ifdef TARGET_NR_poll
9de5e440 9216 case TARGET_NR_poll:
d8035d4c
MF		 9217# endif
9218# ifdef TARGET_NR_ppoll
9219 case TARGET_NR_ppoll:
9220# endif
9de5e440 9221 {
53a5960a 9222 struct target_pollfd *target_pfd;
9de5e440 9223 unsigned int nfds = arg2;
9de5e440 9224 struct pollfd *pfd;
7854b056 9225 unsigned int i;
9de5e440 9226
3e24bb3f
LV		 9227 pfd = NULL;
9228 target_pfd = NULL;
9229 if (nfds) {
ce9c139d 9230 if (nfds > (INT_MAX / sizeof(struct target_pollfd))) {
72eb7ea8 9231 return -TARGET_EINVAL;
ce9c139d
PM		 9232 }
9233
3e24bb3f
LV		 9234 target_pfd = lock_user(VERIFY_WRITE, arg1,
9235 sizeof(struct target_pollfd) * nfds, 1);
9236 if (!target_pfd) {
2852aafd 9237 return -TARGET_EFAULT;
3e24bb3f 9238 }
d8035d4c 9239
3e24bb3f
LV		 9240 pfd = alloca(sizeof(struct pollfd) * nfds);
9241 for (i = 0; i < nfds; i++) {
9242 pfd[i].fd = tswap32(target_pfd[i].fd);
9243 pfd[i].events = tswap16(target_pfd[i].events);
9244 }
9de5e440 9245 }
d8035d4c 9246
a6130237 9247 switch (num) {
d8035d4c 9248# ifdef TARGET_NR_ppoll
a6130237
PM		 9249 case TARGET_NR_ppoll:
9250 {
d8035d4c
MF		 9251 struct timespec _timeout_ts, *timeout_ts = &_timeout_ts;
9252 target_sigset_t *target_set;
9253 sigset_t _set, *set = &_set;
9254
9255 if (arg3) {
9256 if (target_to_host_timespec(timeout_ts, arg3)) {
9257 unlock_user(target_pfd, arg1, 0);
2852aafd 9258 return -TARGET_EFAULT;
d8035d4c
MF		 9259 }
9260 } else {
9261 timeout_ts = NULL;
9262 }
9263
9264 if (arg4) {
c815701e
PM		 9265 if (arg5 != sizeof(target_sigset_t)) {
9266 unlock_user(target_pfd, arg1, 0);
72eb7ea8 9267 return -TARGET_EINVAL;
c815701e
PM		 9268 }
9269
d8035d4c
MF		 9270 target_set = lock_user(VERIFY_READ, arg4, sizeof(target_sigset_t), 1);
9271 if (!target_set) {
9272 unlock_user(target_pfd, arg1, 0);
2852aafd 9273 return -TARGET_EFAULT;
d8035d4c
MF		 9274 }
9275 target_to_host_sigset(set, target_set);
9276 } else {
9277 set = NULL;
9278 }
9279
a6130237
PM		 9280 ret = get_errno(safe_ppoll(pfd, nfds, timeout_ts,
9281 set, SIGSET_T_SIZE));
d8035d4c
MF		 9282
9283 if (!is_error(ret) && arg3) {
9284 host_to_target_timespec(arg3, timeout_ts);
9285 }
9286 if (arg4) {
9287 unlock_user(target_set, arg4, 0);
9288 }
a6130237
PM		 9289 break;
9290 }
d8035d4c 9291# endif
a6130237
PM		 9292# ifdef TARGET_NR_poll
9293 case TARGET_NR_poll:
9294 {
9295 struct timespec ts, *pts;
9296
9297 if (arg3 >= 0) {
9298 /* Convert ms to secs, ns */
9299 ts.tv_sec = arg3 / 1000;
9300 ts.tv_nsec = (arg3 % 1000) * 1000000LL;
9301 pts = &ts;
9302 } else {
9303 /* -ve poll() timeout means "infinite" */
9304 pts = NULL;
9305 }
9306 ret = get_errno(safe_ppoll(pfd, nfds, pts, NULL, 0));
9307 break;
9308 }
d8035d4c 9309# endif
a6130237
PM		 9310 default:
9311 g_assert_not_reached();
9312 }
d8035d4c 9313
9de5e440
FB		 9314 if (!is_error(ret)) {
9315 for(i = 0; i < nfds; i++) {
5cd4393b 9316 target_pfd[i].revents = tswap16(pfd[i].revents);
9de5e440
FB		 9317 }
9318 }
30cb4cde 9319 unlock_user(target_pfd, arg1, sizeof(struct target_pollfd) * nfds);
9de5e440 9320 }
72eb7ea8 9321 return ret;
e5febef5 9322#endif
31e31b8a 9323 case TARGET_NR_flock:
9de5e440
FB		 9324 /* NOTE: the flock constant seems to be the same for every
9325 Linux platform */
72eb7ea8 9326 return get_errno(safe_flock(arg1, arg2));
31e31b8a
FB		 9327 case TARGET_NR_readv:
9328 {
f287b2c2
RH		 9329 struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0);
9330 if (vec != NULL) {
918c03ed 9331 ret = get_errno(safe_readv(arg1, vec, arg3));
f287b2c2
RH		 9332 unlock_iovec(vec, arg2, arg3, 1);
9333 } else {
9334 ret = -host_to_target_errno(errno);
9335 }
31e31b8a 9336 }
72eb7ea8 9337 return ret;
31e31b8a
FB		 9338 case TARGET_NR_writev:
9339 {
f287b2c2
RH		 9340 struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
9341 if (vec != NULL) {
918c03ed 9342 ret = get_errno(safe_writev(arg1, vec, arg3));
f287b2c2
RH		 9343 unlock_iovec(vec, arg2, arg3, 0);
9344 } else {
9345 ret = -host_to_target_errno(errno);
9346 }
31e31b8a 9347 }
72eb7ea8 9348 return ret;
0f26386c
DJ		 9349#if defined(TARGET_NR_preadv)
9350 case TARGET_NR_preadv:
9351 {
9352 struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0);
9353 if (vec != NULL) {
9ac22517
MF		 9354 unsigned long low, high;
9355
9356 target_to_host_low_high(arg4, arg5, &low, &high);
9357 ret = get_errno(safe_preadv(arg1, vec, arg3, low, high));
0f26386c
DJ		 9358 unlock_iovec(vec, arg2, arg3, 1);
9359 } else {
9360 ret = -host_to_target_errno(errno);
f8d00fba
DJ		 9361 }
9362 }
72eb7ea8 9363 return ret;
f8d00fba
DJ		 9364#endif
9365#if defined(TARGET_NR_pwritev)
9366 case TARGET_NR_pwritev:
9367 {
9368 struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
9369 if (vec != NULL) {
9ac22517
MF		 9370 unsigned long low, high;
9371
9372 target_to_host_low_high(arg4, arg5, &low, &high);
9373 ret = get_errno(safe_pwritev(arg1, vec, arg3, low, high));
f8d00fba
DJ		 9374 unlock_iovec(vec, arg2, arg3, 0);
9375 } else {
9376 ret = -host_to_target_errno(errno);
0f26386c
DJ		 9377 }
9378 }
72eb7ea8 9379 return ret;
0f26386c 9380#endif
31e31b8a 9381 case TARGET_NR_getsid:
72eb7ea8 9382 return get_errno(getsid(arg1));
7a3148a9 9383#if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */
31e31b8a 9384 case TARGET_NR_fdatasync:
72eb7ea8 9385 return get_errno(fdatasync(arg1));
7a3148a9 9386#endif
704eff6c 9387#ifdef TARGET_NR__sysctl
31e31b8a 9388 case TARGET_NR__sysctl:
0da46a6e 9389 /* We don't implement this, but ENOTDIR is always a safe
29e619b1 9390 return value. */
72eb7ea8 9391 return -TARGET_ENOTDIR;
704eff6c 9392#endif
737de1d1
MF		 9393 case TARGET_NR_sched_getaffinity:
9394 {
9395 unsigned int mask_size;
9396 unsigned long *mask;
9397
9398 /*
9399 * sched_getaffinity needs multiples of ulong, so need to take
9400 * care of mismatches between target ulong and host ulong sizes.
9401 */
9402 if (arg2 & (sizeof(abi_ulong) - 1)) {
72eb7ea8 9403 return -TARGET_EINVAL;
737de1d1
MF		 9404 }
9405 mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
9406
9407 mask = alloca(mask_size);
2e0a8713 9408 memset(mask, 0, mask_size);
737de1d1
MF		 9409 ret = get_errno(sys_sched_getaffinity(arg1, mask_size, mask));
9410
9411 if (!is_error(ret)) {
be3bd286
PM		 9412 if (ret > arg2) {
9413 /* More data returned than the caller's buffer will fit.
9414 * This only happens if sizeof(abi_long) < sizeof(long)
9415 * and the caller passed us a buffer holding an odd number
9416 * of abi_longs. If the host kernel is actually using the
9417 * extra 4 bytes then fail EINVAL; otherwise we can just
9418 * ignore them and only copy the interesting part.
9419 */
9420 int numcpus = sysconf(_SC_NPROCESSORS_CONF);
9421 if (numcpus > arg2 * 8) {
72eb7ea8 9422 return -TARGET_EINVAL;
be3bd286
PM		 9423 }
9424 ret = arg2;
9425 }
9426
5fdefcf8 9427 if (host_to_target_cpu_mask(mask, mask_size, arg3, ret)) {
2852aafd 9428 return -TARGET_EFAULT;
5fdefcf8 9429 }
737de1d1
MF		 9430 }
9431 }
72eb7ea8 9432 return ret;
737de1d1
MF		 9433 case TARGET_NR_sched_setaffinity:
9434 {
9435 unsigned int mask_size;
9436 unsigned long *mask;
9437
9438 /*
9439 * sched_setaffinity needs multiples of ulong, so need to take
9440 * care of mismatches between target ulong and host ulong sizes.
9441 */
9442 if (arg2 & (sizeof(abi_ulong) - 1)) {
72eb7ea8 9443 return -TARGET_EINVAL;
737de1d1
MF		 9444 }
9445 mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1);
737de1d1 9446 mask = alloca(mask_size);
2e0a8713
ST		 9447
9448 ret = target_to_host_cpu_mask(mask, mask_size, arg3, arg2);
9449 if (ret) {
72eb7ea8 9450 return ret;
737de1d1 9451 }
737de1d1 9452
72eb7ea8 9453 return get_errno(sys_sched_setaffinity(arg1, mask_size, mask));
737de1d1 9454 }
b827c3ed
ST		 9455 case TARGET_NR_getcpu:
9456 {
9457 unsigned cpu, node;
9458 ret = get_errno(sys_getcpu(arg1 ? &cpu : NULL,
9459 arg2 ? &node : NULL,
9460 NULL));
9461 if (is_error(ret)) {
259841c1 9462 return ret;
b827c3ed
ST		 9463 }
9464 if (arg1 && put_user_u32(cpu, arg1)) {
2852aafd 9465 return -TARGET_EFAULT;
b827c3ed
ST		 9466 }
9467 if (arg2 && put_user_u32(node, arg2)) {
2852aafd 9468 return -TARGET_EFAULT;
b827c3ed
ST		 9469 }
9470 }
72eb7ea8 9471 return ret;
31e31b8a 9472 case TARGET_NR_sched_setparam:
5cd4393b 9473 {
53a5960a 9474 struct sched_param *target_schp;
5cd4393b 9475 struct sched_param schp;
53a5960a 9476
a1d5c5b2
TM		 9477 if (arg2 == 0) {
9478 return -TARGET_EINVAL;
9479 }
579a97f7 9480 if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1))
2852aafd 9481 return -TARGET_EFAULT;
5cd4393b 9482 schp.sched_priority = tswap32(target_schp->sched_priority);
53a5960a 9483 unlock_user_struct(target_schp, arg2, 0);
72eb7ea8 9484 return get_errno(sched_setparam(arg1, &schp));
5cd4393b 9485 }
31e31b8a 9486 case TARGET_NR_sched_getparam:
5cd4393b 9487 {
53a5960a 9488 struct sched_param *target_schp;
5cd4393b 9489 struct sched_param schp;
a1d5c5b2
TM		 9490
9491 if (arg2 == 0) {
9492 return -TARGET_EINVAL;
9493 }
5cd4393b
FB		 9494 ret = get_errno(sched_getparam(arg1, &schp));
9495 if (!is_error(ret)) {
579a97f7 9496 if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0))
2852aafd 9497 return -TARGET_EFAULT;
5cd4393b 9498 target_schp->sched_priority = tswap32(schp.sched_priority);
53a5960a 9499 unlock_user_struct(target_schp, arg2, 1);
5cd4393b
FB		 9500 }
9501 }
72eb7ea8 9502 return ret;
31e31b8a 9503 case TARGET_NR_sched_setscheduler:
5cd4393b 9504 {
53a5960a 9505 struct sched_param *target_schp;
5cd4393b 9506 struct sched_param schp;
a1d5c5b2
TM		 9507 if (arg3 == 0) {
9508 return -TARGET_EINVAL;
9509 }
579a97f7 9510 if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1))
2852aafd 9511 return -TARGET_EFAULT;
5cd4393b 9512 schp.sched_priority = tswap32(target_schp->sched_priority);
53a5960a 9513 unlock_user_struct(target_schp, arg3, 0);
72eb7ea8 9514 return get_errno(sched_setscheduler(arg1, arg2, &schp));
5cd4393b 9515 }
31e31b8a 9516 case TARGET_NR_sched_getscheduler:
72eb7ea8 9517 return get_errno(sched_getscheduler(arg1));
31e31b8a 9518 case TARGET_NR_sched_yield:
72eb7ea8 9519 return get_errno(sched_yield());
31e31b8a 9520 case TARGET_NR_sched_get_priority_max:
72eb7ea8 9521 return get_errno(sched_get_priority_max(arg1));
31e31b8a 9522 case TARGET_NR_sched_get_priority_min:
72eb7ea8 9523 return get_errno(sched_get_priority_min(arg1));
31e31b8a 9524 case TARGET_NR_sched_rr_get_interval:
5cd4393b 9525 {
5cd4393b
FB		 9526 struct timespec ts;
9527 ret = get_errno(sched_rr_get_interval(arg1, &ts));
9528 if (!is_error(ret)) {
d4290c40 9529 ret = host_to_target_timespec(arg2, &ts);
5cd4393b
FB		 9530 }
9531 }
72eb7ea8 9532 return ret;
31e31b8a 9533 case TARGET_NR_nanosleep:
1b6b029e 9534 {
1b6b029e 9535 struct timespec req, rem;
53a5960a 9536 target_to_host_timespec(&req, arg1);
9e518226 9537 ret = get_errno(safe_nanosleep(&req, &rem));
53a5960a
PB		 9538 if (is_error(ret) && arg2) {
9539 host_to_target_timespec(arg2, &rem);
1b6b029e
FB		 9540 }
9541 }
72eb7ea8 9542 return ret;
31e31b8a 9543 case TARGET_NR_prctl:
1e6722f8
PM		 9544 switch (arg1) {
9545 case PR_GET_PDEATHSIG:
9546 {
9547 int deathsig;
9548 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5));
9549 if (!is_error(ret) && arg2
9550 && put_user_ual(deathsig, arg2)) {
2852aafd 9551 return -TARGET_EFAULT;
e5574487 9552 }
72eb7ea8 9553 return ret;
1e6722f8 9554 }
db9526b1
PM		 9555#ifdef PR_GET_NAME
9556 case PR_GET_NAME:
9557 {
9558 void *name = lock_user(VERIFY_WRITE, arg2, 16, 1);
9559 if (!name) {
2852aafd 9560 return -TARGET_EFAULT;
db9526b1
PM		 9561 }
9562 ret = get_errno(prctl(arg1, (unsigned long)name,
9563 arg3, arg4, arg5));
9564 unlock_user(name, arg2, 16);
72eb7ea8 9565 return ret;
db9526b1
PM		 9566 }
9567 case PR_SET_NAME:
9568 {
9569 void *name = lock_user(VERIFY_READ, arg2, 16, 1);
9570 if (!name) {
2852aafd 9571 return -TARGET_EFAULT;
db9526b1
PM		 9572 }
9573 ret = get_errno(prctl(arg1, (unsigned long)name,
9574 arg3, arg4, arg5));
9575 unlock_user(name, arg2, 0);
72eb7ea8 9576 return ret;
db9526b1
PM		 9577 }
9578#endif
5b702ffd
SM		 9579#ifdef TARGET_MIPS
9580 case TARGET_PR_GET_FP_MODE:
64ea3d67
SM		 9581 {
9582 CPUMIPSState *env = ((CPUMIPSState *)cpu_env);
9583 ret = 0;
9584 if (env->CP0_Status & (1 << CP0St_FR)) {
9585 ret |= TARGET_PR_FP_MODE_FR;
9586 }
9587 if (env->CP0_Config5 & (1 << CP0C5_FRE)) {
9588 ret |= TARGET_PR_FP_MODE_FRE;
9589 }
9590 return ret;
9591 }
5b702ffd 9592 case TARGET_PR_SET_FP_MODE:
64ea3d67
SM		 9593 {
9594 CPUMIPSState *env = ((CPUMIPSState *)cpu_env);
9595 bool old_fr = env->CP0_Status & (1 << CP0St_FR);
6456c510 9596 bool old_fre = env->CP0_Config5 & (1 << CP0C5_FRE);
64ea3d67
SM		 9597 bool new_fr = arg2 & TARGET_PR_FP_MODE_FR;
9598 bool new_fre = arg2 & TARGET_PR_FP_MODE_FRE;
9599
6456c510
SM		 9600 const unsigned int known_bits = TARGET_PR_FP_MODE_FR |
9601 TARGET_PR_FP_MODE_FRE;
9602
9603 /* If nothing to change, return right away, successfully. */
9604 if (old_fr == new_fr && old_fre == new_fre) {
9605 return 0;
9606 }
9607 /* Check the value is valid */
9608 if (arg2 & ~known_bits) {
9609 return -TARGET_EOPNOTSUPP;
9610 }
9611 /* Setting FRE without FR is not supported. */
9612 if (new_fre && !new_fr) {
9613 return -TARGET_EOPNOTSUPP;
9614 }
64ea3d67
SM		 9615 if (new_fr && !(env->active_fpu.fcr0 & (1 << FCR0_F64))) {
9616 /* FR1 is not supported */
9617 return -TARGET_EOPNOTSUPP;
9618 }
9619 if (!new_fr && (env->active_fpu.fcr0 & (1 << FCR0_F64))
9620 && !(env->CP0_Status_rw_bitmask & (1 << CP0St_FR))) {
9621 /* cannot set FR=0 */
9622 return -TARGET_EOPNOTSUPP;
9623 }
9624 if (new_fre && !(env->active_fpu.fcr0 & (1 << FCR0_FREP))) {
9625 /* Cannot set FRE=1 */
9626 return -TARGET_EOPNOTSUPP;
9627 }
9628
9629 int i;
9630 fpr_t *fpr = env->active_fpu.fpr;
9631 for (i = 0; i < 32 ; i += 2) {
9632 if (!old_fr && new_fr) {
9633 fpr[i].w[!FP_ENDIAN_IDX] = fpr[i + 1].w[FP_ENDIAN_IDX];
9634 } else if (old_fr && !new_fr) {
9635 fpr[i + 1].w[FP_ENDIAN_IDX] = fpr[i].w[!FP_ENDIAN_IDX];
9636 }
9637 }
9638
9639 if (new_fr) {
9640 env->CP0_Status |= (1 << CP0St_FR);
9641 env->hflags |= MIPS_HFLAG_F64;
9642 } else {
9643 env->CP0_Status &= ~(1 << CP0St_FR);
6456c510 9644 env->hflags &= ~MIPS_HFLAG_F64;
64ea3d67
SM		 9645 }
9646 if (new_fre) {
9647 env->CP0_Config5 |= (1 << CP0C5_FRE);
9648 if (env->active_fpu.fcr0 & (1 << FCR0_FREP)) {
9649 env->hflags |= MIPS_HFLAG_FRE;
9650 }
9651 } else {
9652 env->CP0_Config5 &= ~(1 << CP0C5_FRE);
6456c510 9653 env->hflags &= ~MIPS_HFLAG_FRE;
64ea3d67
SM		 9654 }
9655
9656 return 0;
9657 }
5b702ffd 9658#endif /* MIPS */
85fc7167
RH		 9659#ifdef TARGET_AARCH64
9660 case TARGET_PR_SVE_SET_VL:
adf92eab
RH		 9661 /*
9662 * We cannot support either PR_SVE_SET_VL_ONEXEC or
9663 * PR_SVE_VL_INHERIT. Note the kernel definition
9664 * of sve_vl_valid allows for VQ=512, i.e. VL=8192,
9665 * even though the current architectural maximum is VQ=16.
9666 */
85fc7167 9667 ret = -TARGET_EINVAL;
cd208a1c 9668 if (cpu_isar_feature(aa64_sve, arm_env_get_cpu(cpu_env))
adf92eab 9669 && arg2 >= 0 && arg2 <= 512 * 16 && !(arg2 & 15)) {
85fc7167 9670 CPUARMState *env = cpu_env;
adf92eab
RH		 9671 ARMCPU *cpu = arm_env_get_cpu(env);
9672 uint32_t vq, old_vq;
9673
9674 old_vq = (env->vfp.zcr_el[1] & 0xf) + 1;
9675 vq = MAX(arg2 / 16, 1);
9676 vq = MIN(vq, cpu->sve_max_vq);
85fc7167
RH		 9677
9678 if (vq < old_vq) {
9679 aarch64_sve_narrow_vq(env, vq);
9680 }
9681 env->vfp.zcr_el[1] = vq - 1;
9682 ret = vq * 16;
9683 }
72eb7ea8 9684 return ret;
85fc7167
RH		 9685 case TARGET_PR_SVE_GET_VL:
9686 ret = -TARGET_EINVAL;
cd208a1c
RH		 9687 {
9688 ARMCPU *cpu = arm_env_get_cpu(cpu_env);
9689 if (cpu_isar_feature(aa64_sve, cpu)) {
9690 ret = ((cpu->env.vfp.zcr_el[1] & 0xf) + 1) * 16;
9691 }
85fc7167 9692 }
72eb7ea8 9693 return ret;
85fc7167 9694#endif /* AARCH64 */
a8b154a6
JC		 9695 case PR_GET_SECCOMP:
9696 case PR_SET_SECCOMP:
9697 /* Disable seccomp to prevent the target disabling syscalls we
9698 * need. */
72eb7ea8 9699 return -TARGET_EINVAL;
1e6722f8
PM		 9700 default:
9701 /* Most prctl options have no pointer arguments */
72eb7ea8 9702 return get_errno(prctl(arg1, arg2, arg3, arg4, arg5));
1e6722f8 9703 }
39b9aae1 9704 break;
d2fd1af7
FB		 9705#ifdef TARGET_NR_arch_prctl
9706 case TARGET_NR_arch_prctl:
9707#if defined(TARGET_I386) && !defined(TARGET_ABI32)
72eb7ea8 9708 return do_arch_prctl(cpu_env, arg1, arg2);
d2fd1af7 9709#else
1a7b2b13 9710#error unreachable
d2fd1af7
FB		 9711#endif
9712#endif
f2c7ba15
AJ		 9713#ifdef TARGET_NR_pread64
9714 case TARGET_NR_pread64:
8bf8e9df 9715 if (regpairs_aligned(cpu_env, num)) {
ae017a5b
AG		 9716 arg4 = arg5;
9717 arg5 = arg6;
9718 }
2bd3f899
PM		 9719 if (arg2 == 0 && arg3 == 0) {
9720 /* Special-case NULL buffer and zero length, which should succeed */
9721 p = 0;
9722 } else {
9723 p = lock_user(VERIFY_WRITE, arg2, arg3, 0);
9724 if (!p) {
9725 return -TARGET_EFAULT;
9726 }
9727 }
f2c7ba15
AJ		 9728 ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5)));
9729 unlock_user(p, arg2, ret);
72eb7ea8 9730 return ret;
f2c7ba15 9731 case TARGET_NR_pwrite64:
8bf8e9df 9732 if (regpairs_aligned(cpu_env, num)) {
ae017a5b
AG		 9733 arg4 = arg5;
9734 arg5 = arg6;
9735 }
2bd3f899
PM		 9736 if (arg2 == 0 && arg3 == 0) {
9737 /* Special-case NULL buffer and zero length, which should succeed */
9738 p = 0;
9739 } else {
9740 p = lock_user(VERIFY_READ, arg2, arg3, 1);
9741 if (!p) {
9742 return -TARGET_EFAULT;
9743 }
9744 }
f2c7ba15
AJ		 9745 ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5)));
9746 unlock_user(p, arg2, 0);
72eb7ea8 9747 return ret;
67867308 9748#endif
31e31b8a 9749 case TARGET_NR_getcwd:
579a97f7 9750 if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0)))
2852aafd 9751 return -TARGET_EFAULT;
53a5960a
PB		 9752 ret = get_errno(sys_getcwd1(p, arg2));
9753 unlock_user(p, arg1, ret);
72eb7ea8 9754 return ret;
31e31b8a
FB		 9755 case TARGET_NR_capget:
9756 case TARGET_NR_capset:
e0eb210e
PM		 9757 {
9758 struct target_user_cap_header *target_header;
9759 struct target_user_cap_data *target_data = NULL;
9760 struct __user_cap_header_struct header;
9761 struct __user_cap_data_struct data[2];
9762 struct __user_cap_data_struct *dataptr = NULL;
9763 int i, target_datalen;
9764 int data_items = 1;
9765
9766 if (!lock_user_struct(VERIFY_WRITE, target_header, arg1, 1)) {
2852aafd 9767 return -TARGET_EFAULT;
e0eb210e
PM		 9768 }
9769 header.version = tswap32(target_header->version);
9770 header.pid = tswap32(target_header->pid);
9771
ec864874 9772 if (header.version != _LINUX_CAPABILITY_VERSION) {
e0eb210e
PM		 9773 /* Version 2 and up takes pointer to two user_data structs */
9774 data_items = 2;
9775 }
9776
9777 target_datalen = sizeof(*target_data) * data_items;
9778
9779 if (arg2) {
9780 if (num == TARGET_NR_capget) {
9781 target_data = lock_user(VERIFY_WRITE, arg2, target_datalen, 0);
9782 } else {
9783 target_data = lock_user(VERIFY_READ, arg2, target_datalen, 1);
9784 }
9785 if (!target_data) {
9786 unlock_user_struct(target_header, arg1, 0);
2852aafd 9787 return -TARGET_EFAULT;
e0eb210e
PM		 9788 }
9789
9790 if (num == TARGET_NR_capset) {
9791 for (i = 0; i < data_items; i++) {
9792 data[i].effective = tswap32(target_data[i].effective);
9793 data[i].permitted = tswap32(target_data[i].permitted);
9794 data[i].inheritable = tswap32(target_data[i].inheritable);
9795 }
9796 }
9797
9798 dataptr = data;
9799 }
9800
9801 if (num == TARGET_NR_capget) {
9802 ret = get_errno(capget(&header, dataptr));
9803 } else {
9804 ret = get_errno(capset(&header, dataptr));
9805 }
9806
9807 /* The kernel always updates version for both capget and capset */
9808 target_header->version = tswap32(header.version);
9809 unlock_user_struct(target_header, arg1, 1);
9810
9811 if (arg2) {
9812 if (num == TARGET_NR_capget) {
9813 for (i = 0; i < data_items; i++) {
9814 target_data[i].effective = tswap32(data[i].effective);
9815 target_data[i].permitted = tswap32(data[i].permitted);
9816 target_data[i].inheritable = tswap32(data[i].inheritable);
9817 }
9818 unlock_user(target_data, arg2, target_datalen);
9819 } else {
9820 unlock_user(target_data, arg2, 0);
9821 }
9822 }
72eb7ea8 9823 return ret;
e0eb210e 9824 }
31e31b8a 9825 case TARGET_NR_sigaltstack:
72eb7ea8
RH		 9826 return do_sigaltstack(arg1, arg2,
9827 get_sp_from_cpustate((CPUArchState *)cpu_env));
a8fd1aba
PM		 9828
9829#ifdef CONFIG_SENDFILE
4f7f8924 9830#ifdef TARGET_NR_sendfile
a8fd1aba
PM		 9831 case TARGET_NR_sendfile:
9832 {
9833 off_t *offp = NULL;
9834 off_t off;
9835 if (arg3) {
9836 ret = get_user_sal(off, arg3);
9837 if (is_error(ret)) {
72eb7ea8 9838 return ret;
a8fd1aba
PM		 9839 }
9840 offp = &off;
9841 }
9842 ret = get_errno(sendfile(arg1, arg2, offp, arg4));
9843 if (!is_error(ret) && arg3) {
9844 abi_long ret2 = put_user_sal(off, arg3);
9845 if (is_error(ret2)) {
9846 ret = ret2;
9847 }
9848 }
72eb7ea8 9849 return ret;
a8fd1aba 9850 }
4f7f8924 9851#endif
a8fd1aba
PM		 9852#ifdef TARGET_NR_sendfile64
9853 case TARGET_NR_sendfile64:
9854 {
9855 off_t *offp = NULL;
9856 off_t off;
9857 if (arg3) {
9858 ret = get_user_s64(off, arg3);
9859 if (is_error(ret)) {
72eb7ea8 9860 return ret;
a8fd1aba
PM		 9861 }
9862 offp = &off;
9863 }
9864 ret = get_errno(sendfile(arg1, arg2, offp, arg4));
9865 if (!is_error(ret) && arg3) {
9866 abi_long ret2 = put_user_s64(off, arg3);
9867 if (is_error(ret2)) {
9868 ret = ret2;
9869 }
9870 }
72eb7ea8 9871 return ret;
a8fd1aba
PM		 9872 }
9873#endif
ebc05488 9874#endif
048f6b4d 9875#ifdef TARGET_NR_vfork
31e31b8a 9876 case TARGET_NR_vfork:
72eb7ea8
RH		 9877 return get_errno(do_fork(cpu_env,
9878 CLONE_VFORK | CLONE_VM | TARGET_SIGCHLD,
9879 0, 0, 0, 0));
048f6b4d 9880#endif
ebc05488 9881#ifdef TARGET_NR_ugetrlimit
31e31b8a 9882 case TARGET_NR_ugetrlimit:
728584be
FB		 9883 {
9884 struct rlimit rlim;
e22b7015
WT		 9885 int resource = target_to_host_resource(arg1);
9886 ret = get_errno(getrlimit(resource, &rlim));
728584be 9887 if (!is_error(ret)) {
53a5960a 9888 struct target_rlimit *target_rlim;
579a97f7 9889 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
2852aafd 9890 return -TARGET_EFAULT;
81bbe906
TY		 9891 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur);
9892 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max);
53a5960a 9893 unlock_user_struct(target_rlim, arg2, 1);
728584be 9894 }
72eb7ea8 9895 return ret;
728584be 9896 }
ebc05488 9897#endif
a315a145 9898#ifdef TARGET_NR_truncate64
31e31b8a 9899 case TARGET_NR_truncate64:
579a97f7 9900 if (!(p = lock_user_string(arg1)))
2852aafd 9901 return -TARGET_EFAULT;
53a5960a
PB		 9902 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
9903 unlock_user(p, arg1, 0);
72eb7ea8 9904 return ret;
a315a145
FB		 9905#endif
9906#ifdef TARGET_NR_ftruncate64
31e31b8a 9907 case TARGET_NR_ftruncate64:
72eb7ea8 9908 return target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
a315a145
FB		 9909#endif
9910#ifdef TARGET_NR_stat64
31e31b8a 9911 case TARGET_NR_stat64:
2852aafd
RH		 9912 if (!(p = lock_user_string(arg1))) {
9913 return -TARGET_EFAULT;
9914 }
53a5960a
PB		 9915 ret = get_errno(stat(path(p), &st));
9916 unlock_user(p, arg1, 0);
6a24a778
AZ		 9917 if (!is_error(ret))
9918 ret = host_to_target_stat64(cpu_env, arg2, &st);
72eb7ea8 9919 return ret;
a315a145
FB		 9920#endif
9921#ifdef TARGET_NR_lstat64
31e31b8a 9922 case TARGET_NR_lstat64:
2852aafd
RH		 9923 if (!(p = lock_user_string(arg1))) {
9924 return -TARGET_EFAULT;
9925 }
53a5960a
PB		 9926 ret = get_errno(lstat(path(p), &st));
9927 unlock_user(p, arg1, 0);
6a24a778
AZ		 9928 if (!is_error(ret))
9929 ret = host_to_target_stat64(cpu_env, arg2, &st);
72eb7ea8 9930 return ret;
a315a145
FB		 9931#endif
9932#ifdef TARGET_NR_fstat64
31e31b8a 9933 case TARGET_NR_fstat64:
6a24a778
AZ		 9934 ret = get_errno(fstat(arg1, &st));
9935 if (!is_error(ret))
9936 ret = host_to_target_stat64(cpu_env, arg2, &st);
72eb7ea8 9937 return ret;
ce4defa0 9938#endif
c0d472b1 9939#if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat))
9d33b76b 9940#ifdef TARGET_NR_fstatat64
6a24a778 9941 case TARGET_NR_fstatat64:
9d33b76b
AJ		 9942#endif
9943#ifdef TARGET_NR_newfstatat
9944 case TARGET_NR_newfstatat:
9945#endif
2852aafd
RH		 9946 if (!(p = lock_user_string(arg2))) {
9947 return -TARGET_EFAULT;
9948 }
c0d472b1 9949 ret = get_errno(fstatat(arg1, path(p), &st, arg4));
2852aafd 9950 unlock_user(p, arg2, 0);
6a24a778
AZ		 9951 if (!is_error(ret))
9952 ret = host_to_target_stat64(cpu_env, arg3, &st);
72eb7ea8 9953 return ret;
a315a145 9954#endif
704eff6c 9955#ifdef TARGET_NR_lchown
67867308 9956 case TARGET_NR_lchown:
579a97f7 9957 if (!(p = lock_user_string(arg1)))
2852aafd 9958 return -TARGET_EFAULT;
53a5960a
PB		 9959 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
9960 unlock_user(p, arg1, 0);
72eb7ea8 9961 return ret;
704eff6c 9962#endif
0c866a7e 9963#ifdef TARGET_NR_getuid
67867308 9964 case TARGET_NR_getuid:
72eb7ea8 9965 return get_errno(high2lowuid(getuid()));
0c866a7e
RV		 9966#endif
9967#ifdef TARGET_NR_getgid
67867308 9968 case TARGET_NR_getgid:
72eb7ea8 9969 return get_errno(high2lowgid(getgid()));
0c866a7e
RV		 9970#endif
9971#ifdef TARGET_NR_geteuid
67867308 9972 case TARGET_NR_geteuid:
72eb7ea8 9973 return get_errno(high2lowuid(geteuid()));
0c866a7e
RV		 9974#endif
9975#ifdef TARGET_NR_getegid
67867308 9976 case TARGET_NR_getegid:
72eb7ea8 9977 return get_errno(high2lowgid(getegid()));
0c866a7e 9978#endif
67867308 9979 case TARGET_NR_setreuid:
72eb7ea8 9980 return get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
67867308 9981 case TARGET_NR_setregid:
72eb7ea8 9982 return get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
67867308
FB		 9983 case TARGET_NR_getgroups:
9984 {
9985 int gidsetsize = arg1;
0c866a7e 9986 target_id *target_grouplist;
67867308
FB		 9987 gid_t *grouplist;
9988 int i;
9989
9990 grouplist = alloca(gidsetsize * sizeof(gid_t));
9991 ret = get_errno(getgroups(gidsetsize, grouplist));
cb3bc233 9992 if (gidsetsize == 0)
72eb7ea8 9993 return ret;
67867308 9994 if (!is_error(ret)) {
03903ffc 9995 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * sizeof(target_id), 0);
579a97f7 9996 if (!target_grouplist)
2852aafd 9997 return -TARGET_EFAULT;
a2155fcc 9998 for(i = 0;i < ret; i++)
0c866a7e 9999 target_grouplist[i] = tswapid(high2lowgid(grouplist[i]));
03903ffc 10000 unlock_user(target_grouplist, arg2, gidsetsize * sizeof(target_id));
67867308
FB		 10001 }
10002 }
72eb7ea8 10003 return ret;
67867308
FB		 10004 case TARGET_NR_setgroups:
10005 {
10006 int gidsetsize = arg1;
0c866a7e 10007 target_id *target_grouplist;
f2b79ce9 10008 gid_t *grouplist = NULL;
67867308 10009 int i;
f2b79ce9
DA		 10010 if (gidsetsize) {
10011 grouplist = alloca(gidsetsize * sizeof(gid_t));
03903ffc 10012 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * sizeof(target_id), 1);
f2b79ce9 10013 if (!target_grouplist) {
259841c1 10014 return -TARGET_EFAULT;
f2b79ce9
DA		 10015 }
10016 for (i = 0; i < gidsetsize; i++) {
10017 grouplist[i] = low2highgid(tswapid(target_grouplist[i]));
10018 }
10019 unlock_user(target_grouplist, arg2, 0);
579a97f7 10020 }
72eb7ea8 10021 return get_errno(setgroups(gidsetsize, grouplist));
67867308 10022 }
67867308 10023 case TARGET_NR_fchown:
72eb7ea8 10024 return get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
c0d472b1 10025#if defined(TARGET_NR_fchownat)
ccfa72b7 10026 case TARGET_NR_fchownat:
579a97f7 10027 if (!(p = lock_user_string(arg2)))
2852aafd 10028 return -TARGET_EFAULT;
c0d472b1
PM		 10029 ret = get_errno(fchownat(arg1, p, low2highuid(arg3),
10030 low2highgid(arg4), arg5));
579a97f7 10031 unlock_user(p, arg2, 0);
72eb7ea8 10032 return ret;
ccfa72b7 10033#endif
67867308
FB		 10034#ifdef TARGET_NR_setresuid
10035 case TARGET_NR_setresuid:
72eb7ea8
RH		 10036 return get_errno(sys_setresuid(low2highuid(arg1),
10037 low2highuid(arg2),
10038 low2highuid(arg3)));
67867308
FB		 10039#endif
10040#ifdef TARGET_NR_getresuid
10041 case TARGET_NR_getresuid:
10042 {
53a5960a 10043 uid_t ruid, euid, suid;
67867308
FB		 10044 ret = get_errno(getresuid(&ruid, &euid, &suid));
10045 if (!is_error(ret)) {
76ca310a
PM		 10046 if (put_user_id(high2lowuid(ruid), arg1)
10047 || put_user_id(high2lowuid(euid), arg2)
10048 || put_user_id(high2lowuid(suid), arg3))
2852aafd 10049 return -TARGET_EFAULT;
67867308
FB		 10050 }
10051 }
72eb7ea8 10052 return ret;
67867308
FB		 10053#endif
10054#ifdef TARGET_NR_getresgid
10055 case TARGET_NR_setresgid:
72eb7ea8
RH		 10056 return get_errno(sys_setresgid(low2highgid(arg1),
10057 low2highgid(arg2),
10058 low2highgid(arg3)));
67867308
FB		 10059#endif
10060#ifdef TARGET_NR_getresgid
10061 case TARGET_NR_getresgid:
10062 {
53a5960a 10063 gid_t rgid, egid, sgid;
67867308
FB		 10064 ret = get_errno(getresgid(&rgid, &egid, &sgid));
10065 if (!is_error(ret)) {
76ca310a
PM		 10066 if (put_user_id(high2lowgid(rgid), arg1)
10067 || put_user_id(high2lowgid(egid), arg2)
10068 || put_user_id(high2lowgid(sgid), arg3))
2852aafd 10069 return -TARGET_EFAULT;
67867308
FB		 10070 }
10071 }
72eb7ea8 10072 return ret;
67867308 10073#endif
704eff6c 10074#ifdef TARGET_NR_chown
67867308 10075 case TARGET_NR_chown:
579a97f7 10076 if (!(p = lock_user_string(arg1)))
2852aafd 10077 return -TARGET_EFAULT;
53a5960a
PB		 10078 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
10079 unlock_user(p, arg1, 0);
72eb7ea8 10080 return ret;
704eff6c 10081#endif
67867308 10082 case TARGET_NR_setuid:
72eb7ea8 10083 return get_errno(sys_setuid(low2highuid(arg1)));
67867308 10084 case TARGET_NR_setgid:
72eb7ea8 10085 return get_errno(sys_setgid(low2highgid(arg1)));
67867308 10086 case TARGET_NR_setfsuid:
72eb7ea8 10087 return get_errno(setfsuid(arg1));
67867308 10088 case TARGET_NR_setfsgid:
72eb7ea8 10089 return get_errno(setfsgid(arg1));
67867308 10090
a315a145 10091#ifdef TARGET_NR_lchown32
31e31b8a 10092 case TARGET_NR_lchown32:
579a97f7 10093 if (!(p = lock_user_string(arg1)))
2852aafd 10094 return -TARGET_EFAULT;
53a5960a
PB		 10095 ret = get_errno(lchown(p, arg2, arg3));
10096 unlock_user(p, arg1, 0);
72eb7ea8 10097 return ret;
a315a145
FB		 10098#endif
10099#ifdef TARGET_NR_getuid32
31e31b8a 10100 case TARGET_NR_getuid32:
72eb7ea8 10101 return get_errno(getuid());
a315a145 10102#endif
64b4d28c
AJ		 10103
10104#if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA)
10105 /* Alpha specific */
10106 case TARGET_NR_getxuid:
ba0e276d
RH		 10107 {
10108 uid_t euid;
10109 euid=geteuid();
10110 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=euid;
10111 }
72eb7ea8 10112 return get_errno(getuid());
64b4d28c
AJ		 10113#endif
10114#if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA)
10115 /* Alpha specific */
10116 case TARGET_NR_getxgid:
ba0e276d
RH		 10117 {
10118 uid_t egid;
10119 egid=getegid();
10120 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=egid;
10121 }
72eb7ea8 10122 return get_errno(getgid());
64b4d28c 10123#endif
ba0e276d
RH		 10124#if defined(TARGET_NR_osf_getsysinfo) && defined(TARGET_ALPHA)
10125 /* Alpha specific */
10126 case TARGET_NR_osf_getsysinfo:
10127 ret = -TARGET_EOPNOTSUPP;
10128 switch (arg1) {
10129 case TARGET_GSI_IEEE_FP_CONTROL:
10130 {
10131 uint64_t swcr, fpcr = cpu_alpha_load_fpcr (cpu_env);
10132
10133 /* Copied from linux ieee_fpcr_to_swcr. */
10134 swcr = (fpcr >> 35) & SWCR_STATUS_MASK;
10135 swcr |= (fpcr >> 36) & SWCR_MAP_DMZ;
10136 swcr |= (~fpcr >> 48) & (SWCR_TRAP_ENABLE_INV
10137 | SWCR_TRAP_ENABLE_DZE
10138 | SWCR_TRAP_ENABLE_OVF);
10139 swcr |= (~fpcr >> 57) & (SWCR_TRAP_ENABLE_UNF
10140 | SWCR_TRAP_ENABLE_INE);
10141 swcr |= (fpcr >> 47) & SWCR_MAP_UMZ;
10142 swcr |= (~fpcr >> 41) & SWCR_TRAP_ENABLE_DNO;
10143
10144 if (put_user_u64 (swcr, arg2))
2852aafd 10145 return -TARGET_EFAULT;
ba0e276d
RH		 10146 ret = 0;
10147 }
10148 break;
10149
10150 /* case GSI_IEEE_STATE_AT_SIGNAL:
10151 -- Not implemented in linux kernel.
10152 case GSI_UACPROC:
10153 -- Retrieves current unaligned access state; not much used.
10154 case GSI_PROC_TYPE:
10155 -- Retrieves implver information; surely not used.
10156 case GSI_GET_HWRPB:
10157 -- Grabs a copy of the HWRPB; surely not used.
10158 */
10159 }
72eb7ea8 10160 return ret;
ba0e276d
RH		 10161#endif
10162#if defined(TARGET_NR_osf_setsysinfo) && defined(TARGET_ALPHA)
10163 /* Alpha specific */
10164 case TARGET_NR_osf_setsysinfo:
10165 ret = -TARGET_EOPNOTSUPP;
10166 switch (arg1) {
10167 case TARGET_SSI_IEEE_FP_CONTROL:
ba0e276d
RH		 10168 {
10169 uint64_t swcr, fpcr, orig_fpcr;
10170
6e06d515 10171 if (get_user_u64 (swcr, arg2)) {
2852aafd 10172 return -TARGET_EFAULT;
6e06d515
RH		 10173 }
10174 orig_fpcr = cpu_alpha_load_fpcr(cpu_env);
ba0e276d
RH		 10175 fpcr = orig_fpcr & FPCR_DYN_MASK;
10176
10177 /* Copied from linux ieee_swcr_to_fpcr. */
10178 fpcr |= (swcr & SWCR_STATUS_MASK) << 35;
10179 fpcr |= (swcr & SWCR_MAP_DMZ) << 36;
10180 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_INV
10181 | SWCR_TRAP_ENABLE_DZE
10182 | SWCR_TRAP_ENABLE_OVF)) << 48;
10183 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_UNF
10184 | SWCR_TRAP_ENABLE_INE)) << 57;
10185 fpcr |= (swcr & SWCR_MAP_UMZ ? FPCR_UNDZ | FPCR_UNFD : 0);
10186 fpcr |= (~swcr & SWCR_TRAP_ENABLE_DNO) << 41;
10187
6e06d515 10188 cpu_alpha_store_fpcr(cpu_env, fpcr);
ba0e276d 10189 ret = 0;
6e06d515
RH		 10190 }
10191 break;
10192
10193 case TARGET_SSI_IEEE_RAISE_EXCEPTION:
10194 {
10195 uint64_t exc, fpcr, orig_fpcr;
10196 int si_code;
10197
10198 if (get_user_u64(exc, arg2)) {
2852aafd 10199 return -TARGET_EFAULT;
6e06d515 10200 }
ba0e276d 10201
6e06d515 10202 orig_fpcr = cpu_alpha_load_fpcr(cpu_env);
ba0e276d 10203
6e06d515
RH		 10204 /* We only add to the exception status here. */
10205 fpcr = orig_fpcr | ((exc & SWCR_STATUS_MASK) << 35);
10206
10207 cpu_alpha_store_fpcr(cpu_env, fpcr);
10208 ret = 0;
10209
10210 /* Old exceptions are not signaled. */
10211 fpcr &= ~(orig_fpcr & FPCR_STATUS_MASK);
10212
10213 /* If any exceptions set by this call,
10214 and are unmasked, send a signal. */
10215 si_code = 0;
10216 if ((fpcr & (FPCR_INE | FPCR_INED)) == FPCR_INE) {
10217 si_code = TARGET_FPE_FLTRES;
10218 }
10219 if ((fpcr & (FPCR_UNF | FPCR_UNFD)) == FPCR_UNF) {
10220 si_code = TARGET_FPE_FLTUND;
10221 }
10222 if ((fpcr & (FPCR_OVF | FPCR_OVFD)) == FPCR_OVF) {
10223 si_code = TARGET_FPE_FLTOVF;
10224 }
10225 if ((fpcr & (FPCR_DZE | FPCR_DZED)) == FPCR_DZE) {
10226 si_code = TARGET_FPE_FLTDIV;
10227 }
10228 if ((fpcr & (FPCR_INV | FPCR_INVD)) == FPCR_INV) {
10229 si_code = TARGET_FPE_FLTINV;
10230 }
10231 if (si_code != 0) {
10232 target_siginfo_t info;
10233 info.si_signo = SIGFPE;
10234 info.si_errno = 0;
10235 info.si_code = si_code;
10236 info._sifields._sigfault._addr
10237 = ((CPUArchState *)cpu_env)->pc;
9d2803f7
PM		 10238 queue_signal((CPUArchState *)cpu_env, info.si_signo,
10239 QEMU_SI_FAULT, &info);
ba0e276d
RH		 10240 }
10241 }
10242 break;
10243
10244 /* case SSI_NVPAIRS:
10245 -- Used with SSIN_UACPROC to enable unaligned accesses.
10246 case SSI_IEEE_STATE_AT_SIGNAL:
10247 case SSI_IEEE_IGNORE_STATE_AT_SIGNAL:
10248 -- Not implemented in linux kernel
10249 */
10250 }
72eb7ea8 10251 return ret;
ba0e276d
RH		 10252#endif
10253#ifdef TARGET_NR_osf_sigprocmask
10254 /* Alpha specific. */
10255 case TARGET_NR_osf_sigprocmask:
10256 {
10257 abi_ulong mask;
bc088ba1 10258 int how;
ba0e276d
RH		 10259 sigset_t set, oldset;
10260
10261 switch(arg1) {
10262 case TARGET_SIG_BLOCK:
10263 how = SIG_BLOCK;
10264 break;
10265 case TARGET_SIG_UNBLOCK:
10266 how = SIG_UNBLOCK;
10267 break;
10268 case TARGET_SIG_SETMASK:
10269 how = SIG_SETMASK;
10270 break;
10271 default:
259841c1 10272 return -TARGET_EINVAL;
ba0e276d
RH		 10273 }
10274 mask = arg2;
10275 target_to_host_old_sigset(&set, &mask);
3d3efba0
PM		 10276 ret = do_sigprocmask(how, &set, &oldset);
10277 if (!ret) {
10278 host_to_target_old_sigset(&mask, &oldset);
10279 ret = mask;
10280 }
ba0e276d 10281 }
72eb7ea8 10282 return ret;
ba0e276d 10283#endif
64b4d28c 10284
a315a145 10285#ifdef TARGET_NR_getgid32
31e31b8a 10286 case TARGET_NR_getgid32:
72eb7ea8 10287 return get_errno(getgid());
a315a145
FB		 10288#endif
10289#ifdef TARGET_NR_geteuid32
31e31b8a 10290 case TARGET_NR_geteuid32:
72eb7ea8 10291 return get_errno(geteuid());
a315a145
FB		 10292#endif
10293#ifdef TARGET_NR_getegid32
31e31b8a 10294 case TARGET_NR_getegid32:
72eb7ea8 10295 return get_errno(getegid());
a315a145
FB		 10296#endif
10297#ifdef TARGET_NR_setreuid32
31e31b8a 10298 case TARGET_NR_setreuid32:
72eb7ea8 10299 return get_errno(setreuid(arg1, arg2));
a315a145
FB		 10300#endif
10301#ifdef TARGET_NR_setregid32
31e31b8a 10302 case TARGET_NR_setregid32:
72eb7ea8 10303 return get_errno(setregid(arg1, arg2));
a315a145
FB		 10304#endif
10305#ifdef TARGET_NR_getgroups32
31e31b8a 10306 case TARGET_NR_getgroups32:
99c475ab
FB		 10307 {
10308 int gidsetsize = arg1;
53a5960a 10309 uint32_t *target_grouplist;
99c475ab
FB		 10310 gid_t *grouplist;
10311 int i;
10312
10313 grouplist = alloca(gidsetsize * sizeof(gid_t));
10314 ret = get_errno(getgroups(gidsetsize, grouplist));
cb3bc233 10315 if (gidsetsize == 0)
72eb7ea8 10316 return ret;
99c475ab 10317 if (!is_error(ret)) {
579a97f7
FB		 10318 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0);
10319 if (!target_grouplist) {
259841c1 10320 return -TARGET_EFAULT;
579a97f7 10321 }
a2155fcc 10322 for(i = 0;i < ret; i++)
53a5960a
PB		 10323 target_grouplist[i] = tswap32(grouplist[i]);
10324 unlock_user(target_grouplist, arg2, gidsetsize * 4);
99c475ab
FB		 10325 }
10326 }
72eb7ea8 10327 return ret;
a315a145
FB		 10328#endif
10329#ifdef TARGET_NR_setgroups32
31e31b8a 10330 case TARGET_NR_setgroups32:
99c475ab
FB		 10331 {
10332 int gidsetsize = arg1;
53a5960a 10333 uint32_t *target_grouplist;
99c475ab
FB		 10334 gid_t *grouplist;
10335 int i;
3b46e624 10336
99c475ab 10337 grouplist = alloca(gidsetsize * sizeof(gid_t));
579a97f7
FB		 10338 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1);
10339 if (!target_grouplist) {
259841c1 10340 return -TARGET_EFAULT;
579a97f7 10341 }
99c475ab 10342 for(i = 0;i < gidsetsize; i++)
53a5960a
PB		 10343 grouplist[i] = tswap32(target_grouplist[i]);
10344 unlock_user(target_grouplist, arg2, 0);
72eb7ea8 10345 return get_errno(setgroups(gidsetsize, grouplist));
99c475ab 10346 }
a315a145
FB		 10347#endif
10348#ifdef TARGET_NR_fchown32
31e31b8a 10349 case TARGET_NR_fchown32:
72eb7ea8 10350 return get_errno(fchown(arg1, arg2, arg3));
a315a145
FB		 10351#endif
10352#ifdef TARGET_NR_setresuid32
31e31b8a 10353 case TARGET_NR_setresuid32:
72eb7ea8 10354 return get_errno(sys_setresuid(arg1, arg2, arg3));
a315a145
FB		 10355#endif
10356#ifdef TARGET_NR_getresuid32
31e31b8a 10357 case TARGET_NR_getresuid32:
b03c60f3 10358 {
53a5960a 10359 uid_t ruid, euid, suid;
b03c60f3
FB		 10360 ret = get_errno(getresuid(&ruid, &euid, &suid));
10361 if (!is_error(ret)) {
2f619698
FB		 10362 if (put_user_u32(ruid, arg1)
10363 || put_user_u32(euid, arg2)
10364 || put_user_u32(suid, arg3))
2852aafd 10365 return -TARGET_EFAULT;
b03c60f3
FB		 10366 }
10367 }
72eb7ea8 10368 return ret;
a315a145
FB		 10369#endif
10370#ifdef TARGET_NR_setresgid32
31e31b8a 10371 case TARGET_NR_setresgid32:
72eb7ea8 10372 return get_errno(sys_setresgid(arg1, arg2, arg3));
a315a145
FB		 10373#endif
10374#ifdef TARGET_NR_getresgid32
31e31b8a 10375 case TARGET_NR_getresgid32:
b03c60f3 10376 {
53a5960a 10377 gid_t rgid, egid, sgid;
b03c60f3
FB		 10378 ret = get_errno(getresgid(&rgid, &egid, &sgid));
10379 if (!is_error(ret)) {
2f619698
FB		 10380 if (put_user_u32(rgid, arg1)
10381 || put_user_u32(egid, arg2)
10382 || put_user_u32(sgid, arg3))
2852aafd 10383 return -TARGET_EFAULT;
b03c60f3
FB		 10384 }
10385 }
72eb7ea8 10386 return ret;
a315a145
FB		 10387#endif
10388#ifdef TARGET_NR_chown32
31e31b8a 10389 case TARGET_NR_chown32:
579a97f7 10390 if (!(p = lock_user_string(arg1)))
2852aafd 10391 return -TARGET_EFAULT;
53a5960a
PB		 10392 ret = get_errno(chown(p, arg2, arg3));
10393 unlock_user(p, arg1, 0);
72eb7ea8 10394 return ret;
a315a145
FB		 10395#endif
10396#ifdef TARGET_NR_setuid32
31e31b8a 10397 case TARGET_NR_setuid32:
72eb7ea8 10398 return get_errno(sys_setuid(arg1));
a315a145
FB		 10399#endif
10400#ifdef TARGET_NR_setgid32
31e31b8a 10401 case TARGET_NR_setgid32:
72eb7ea8 10402 return get_errno(sys_setgid(arg1));
a315a145
FB		 10403#endif
10404#ifdef TARGET_NR_setfsuid32
31e31b8a 10405 case TARGET_NR_setfsuid32:
72eb7ea8 10406 return get_errno(setfsuid(arg1));
a315a145
FB		 10407#endif
10408#ifdef TARGET_NR_setfsgid32
31e31b8a 10409 case TARGET_NR_setfsgid32:
72eb7ea8 10410 return get_errno(setfsgid(arg1));
a315a145 10411#endif
ffa65c3b 10412#ifdef TARGET_NR_mincore
31e31b8a 10413 case TARGET_NR_mincore:
04bb9ace 10414 {
259841c1 10415 void *a = lock_user(VERIFY_READ, arg1, arg2, 0);
98a3331a 10416 if (!a) {
259841c1 10417 return -TARGET_ENOMEM;
98a3331a 10418 }
98a3331a
FSM		 10419 p = lock_user_string(arg3);
10420 if (!p) {
259841c1
RH		 10421 ret = -TARGET_EFAULT;
10422 } else {
10423 ret = get_errno(mincore(a, arg2, p));
10424 unlock_user(p, arg3, ret);
98a3331a 10425 }
04bb9ace
AJ		 10426 unlock_user(a, arg1, 0);
10427 }
72eb7ea8 10428 return ret;
ffa65c3b 10429#endif
408321b6
AJ		 10430#ifdef TARGET_NR_arm_fadvise64_64
10431 case TARGET_NR_arm_fadvise64_64:
e0156a9d
PM		 10432 /* arm_fadvise64_64 looks like fadvise64_64 but
10433 * with different argument order: fd, advice, offset, len
10434 * rather than the usual fd, offset, len, advice.
10435 * Note that offset and len are both 64-bit so appear as
10436 * pairs of 32-bit registers.
10437 */
10438 ret = posix_fadvise(arg1, target_offset64(arg3, arg4),
10439 target_offset64(arg5, arg6), arg2);
72eb7ea8 10440 return -host_to_target_errno(ret);
408321b6 10441#endif
badd3cd8
PM		 10442
10443#if TARGET_ABI_BITS == 32
10444
10445#ifdef TARGET_NR_fadvise64_64
10446 case TARGET_NR_fadvise64_64:
64a563dd 10447#if defined(TARGET_PPC) || defined(TARGET_XTENSA)
43046b5a
LV		 10448 /* 6 args: fd, advice, offset (high, low), len (high, low) */
10449 ret = arg2;
10450 arg2 = arg3;
10451 arg3 = arg4;
10452 arg4 = arg5;
10453 arg5 = arg6;
10454 arg6 = ret;
10455#else
badd3cd8 10456 /* 6 args: fd, offset (high, low), len (high, low), advice */
8bf8e9df 10457 if (regpairs_aligned(cpu_env, num)) {
badd3cd8
PM		 10458 /* offset is in (3,4), len in (5,6) and advice in 7 */
10459 arg2 = arg3;
10460 arg3 = arg4;
10461 arg4 = arg5;
10462 arg5 = arg6;
10463 arg6 = arg7;
10464 }
43046b5a 10465#endif
72eb7ea8
RH		 10466 ret = posix_fadvise(arg1, target_offset64(arg2, arg3),
10467 target_offset64(arg4, arg5), arg6);
10468 return -host_to_target_errno(ret);
badd3cd8
PM		 10469#endif
10470
10471#ifdef TARGET_NR_fadvise64
10472 case TARGET_NR_fadvise64:
10473 /* 5 args: fd, offset (high, low), len, advice */
8bf8e9df 10474 if (regpairs_aligned(cpu_env, num)) {
badd3cd8
PM		 10475 /* offset is in (3,4), len in 5 and advice in 6 */
10476 arg2 = arg3;
10477 arg3 = arg4;
10478 arg4 = arg5;
10479 arg5 = arg6;
10480 }
72eb7ea8
RH		 10481 ret = posix_fadvise(arg1, target_offset64(arg2, arg3), arg4, arg5);
10482 return -host_to_target_errno(ret);
408321b6 10483#endif
badd3cd8
PM		 10484
10485#else /* not a 32-bit ABI */
e0156a9d 10486#if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_fadvise64)
408321b6
AJ		 10487#ifdef TARGET_NR_fadvise64_64
10488 case TARGET_NR_fadvise64_64:
10489#endif
e72d2cc7
UH		 10490#ifdef TARGET_NR_fadvise64
10491 case TARGET_NR_fadvise64:
10492#endif
10493#ifdef TARGET_S390X
10494 switch (arg4) {
10495 case 4: arg4 = POSIX_FADV_NOREUSE + 1; break; /* make sure it's an invalid value */
10496 case 5: arg4 = POSIX_FADV_NOREUSE + 2; break; /* ditto */
10497 case 6: arg4 = POSIX_FADV_DONTNEED; break;
10498 case 7: arg4 = POSIX_FADV_NOREUSE; break;
10499 default: break;
10500 }
10501#endif
72eb7ea8 10502 return -host_to_target_errno(posix_fadvise(arg1, arg2, arg3, arg4));
408321b6 10503#endif
badd3cd8
PM		 10504#endif /* end of 64-bit ABI fadvise handling */
10505
ffa65c3b 10506#ifdef TARGET_NR_madvise
31e31b8a 10507 case TARGET_NR_madvise:
24836689 10508 /* A straight passthrough may not be safe because qemu sometimes
d2d6b857 10509 turns private file-backed mappings into anonymous mappings.
24836689
PB		 10510 This will break MADV_DONTNEED.
10511 This is a hint, so ignoring and returning success is ok. */
72eb7ea8 10512 return 0;
ffa65c3b 10513#endif
992f48a0 10514#if TARGET_ABI_BITS == 32
31e31b8a 10515 case TARGET_NR_fcntl64:
77e4672d 10516 {
b1e341eb 10517 int cmd;
77e4672d 10518 struct flock64 fl;
213d3e9e
PM		 10519 from_flock64_fn *copyfrom = copy_from_user_flock64;
10520 to_flock64_fn *copyto = copy_to_user_flock64;
10521
ce4defa0 10522#ifdef TARGET_ARM
7f254c5c
LV		 10523 if (!((CPUARMState *)cpu_env)->eabi) {
10524 copyfrom = copy_from_user_oabi_flock64;
10525 copyto = copy_to_user_oabi_flock64;
213d3e9e 10526 }
ce4defa0 10527#endif
77e4672d 10528
5f106811 10529 cmd = target_to_host_fcntl_cmd(arg2);
31b63193 10530 if (cmd == -TARGET_EINVAL) {
72eb7ea8 10531 return cmd;
31b63193 10532 }
b1e341eb 10533
60cd49d5 10534 switch(arg2) {
b1e341eb 10535 case TARGET_F_GETLK64:
213d3e9e
PM		 10536 ret = copyfrom(&fl, arg3);
10537 if (ret) {
10538 break;
5813427b 10539 }
af8ab2bf 10540 ret = get_errno(safe_fcntl(arg1, cmd, &fl));
213d3e9e
PM		 10541 if (ret == 0) {
10542 ret = copyto(arg3, &fl);
10543 }
77e4672d
FB		 10544 break;
10545
b1e341eb
TS		 10546 case TARGET_F_SETLK64:
10547 case TARGET_F_SETLKW64:
213d3e9e
PM		 10548 ret = copyfrom(&fl, arg3);
10549 if (ret) {
10550 break;
ce4defa0 10551 }
435da5e7 10552 ret = get_errno(safe_fcntl(arg1, cmd, &fl));
77e4672d 10553 break;
60cd49d5 10554 default:
5f106811 10555 ret = do_fcntl(arg1, arg2, arg3);
60cd49d5
FB		 10556 break;
10557 }
72eb7ea8 10558 return ret;
77e4672d 10559 }
60cd49d5 10560#endif
7d600c80
TS		 10561#ifdef TARGET_NR_cacheflush
10562 case TARGET_NR_cacheflush:
10563 /* self-modifying code is handled automatically, so nothing needed */
72eb7ea8 10564 return 0;
7d600c80 10565#endif
c573ff67
FB		 10566#ifdef TARGET_NR_getpagesize
10567 case TARGET_NR_getpagesize:
72eb7ea8 10568 return TARGET_PAGE_SIZE;
ebc05488 10569#endif
31e31b8a 10570 case TARGET_NR_gettid:
72eb7ea8 10571 return get_errno(gettid());
e5febef5 10572#ifdef TARGET_NR_readahead
31e31b8a 10573 case TARGET_NR_readahead:
2054ac9b 10574#if TARGET_ABI_BITS == 32
8bf8e9df 10575 if (regpairs_aligned(cpu_env, num)) {
2054ac9b
AJ		 10576 arg2 = arg3;
10577 arg3 = arg4;
10578 arg4 = arg5;
10579 }
77c6850f 10580 ret = get_errno(readahead(arg1, target_offset64(arg2, arg3) , arg4));
2054ac9b
AJ		 10581#else
10582 ret = get_errno(readahead(arg1, arg2, arg3));
10583#endif
72eb7ea8 10584 return ret;
e5febef5 10585#endif
a790ae38 10586#ifdef CONFIG_ATTR
ebc05488 10587#ifdef TARGET_NR_setxattr
31e31b8a
FB		 10588 case TARGET_NR_listxattr:
10589 case TARGET_NR_llistxattr:
fb5590f7
PM		 10590 {
10591 void *p, *b = 0;
10592 if (arg2) {
10593 b = lock_user(VERIFY_WRITE, arg2, arg3, 0);
10594 if (!b) {
72eb7ea8 10595 return -TARGET_EFAULT;
fb5590f7
PM		 10596 }
10597 }
10598 p = lock_user_string(arg1);
10599 if (p) {
10600 if (num == TARGET_NR_listxattr) {
10601 ret = get_errno(listxattr(p, b, arg3));
10602 } else {
10603 ret = get_errno(llistxattr(p, b, arg3));
10604 }
10605 } else {
10606 ret = -TARGET_EFAULT;
10607 }
10608 unlock_user(p, arg1, 0);
10609 unlock_user(b, arg2, arg3);
72eb7ea8 10610 return ret;
fb5590f7 10611 }
31e31b8a 10612 case TARGET_NR_flistxattr:
fb5590f7
PM		 10613 {
10614 void *b = 0;
10615 if (arg2) {
10616 b = lock_user(VERIFY_WRITE, arg2, arg3, 0);
10617 if (!b) {
72eb7ea8 10618 return -TARGET_EFAULT;
fb5590f7
PM		 10619 }
10620 }
10621 ret = get_errno(flistxattr(arg1, b, arg3));
10622 unlock_user(b, arg2, arg3);
72eb7ea8 10623 return ret;
fb5590f7 10624 }
a790ae38 10625 case TARGET_NR_setxattr:
30297b55 10626 case TARGET_NR_lsetxattr:
a790ae38 10627 {
e3c33ec6
PM		 10628 void *p, *n, *v = 0;
10629 if (arg3) {
10630 v = lock_user(VERIFY_READ, arg3, arg4, 1);
10631 if (!v) {
72eb7ea8 10632 return -TARGET_EFAULT;
e3c33ec6
PM		 10633 }
10634 }
a790ae38
ACH		 10635 p = lock_user_string(arg1);
10636 n = lock_user_string(arg2);
e3c33ec6 10637 if (p && n) {
30297b55
PM		 10638 if (num == TARGET_NR_setxattr) {
10639 ret = get_errno(setxattr(p, n, v, arg4, arg5));
10640 } else {
10641 ret = get_errno(lsetxattr(p, n, v, arg4, arg5));
10642 }
a790ae38
ACH		 10643 } else {
10644 ret = -TARGET_EFAULT;
10645 }
10646 unlock_user(p, arg1, 0);
10647 unlock_user(n, arg2, 0);
10648 unlock_user(v, arg3, 0);
10649 }
72eb7ea8 10650 return ret;
30297b55
PM		 10651 case TARGET_NR_fsetxattr:
10652 {
10653 void *n, *v = 0;
10654 if (arg3) {
10655 v = lock_user(VERIFY_READ, arg3, arg4, 1);
10656 if (!v) {
72eb7ea8 10657 return -TARGET_EFAULT;
30297b55
PM		 10658 }
10659 }
10660 n = lock_user_string(arg2);
10661 if (n) {
10662 ret = get_errno(fsetxattr(arg1, n, v, arg4, arg5));
10663 } else {
10664 ret = -TARGET_EFAULT;
10665 }
10666 unlock_user(n, arg2, 0);
10667 unlock_user(v, arg3, 0);
10668 }
72eb7ea8 10669 return ret;
a790ae38 10670 case TARGET_NR_getxattr:
30297b55 10671 case TARGET_NR_lgetxattr:
a790ae38 10672 {
e3c33ec6
PM		 10673 void *p, *n, *v = 0;
10674 if (arg3) {
10675 v = lock_user(VERIFY_WRITE, arg3, arg4, 0);
10676 if (!v) {
72eb7ea8 10677 return -TARGET_EFAULT;
e3c33ec6
PM		 10678 }
10679 }
a790ae38
ACH		 10680 p = lock_user_string(arg1);
10681 n = lock_user_string(arg2);
e3c33ec6 10682 if (p && n) {
30297b55
PM		 10683 if (num == TARGET_NR_getxattr) {
10684 ret = get_errno(getxattr(p, n, v, arg4));
10685 } else {
10686 ret = get_errno(lgetxattr(p, n, v, arg4));
10687 }
a790ae38
ACH		 10688 } else {
10689 ret = -TARGET_EFAULT;
10690 }
10691 unlock_user(p, arg1, 0);
10692 unlock_user(n, arg2, 0);
10693 unlock_user(v, arg3, arg4);
10694 }
72eb7ea8 10695 return ret;
30297b55
PM		 10696 case TARGET_NR_fgetxattr:
10697 {
10698 void *n, *v = 0;
10699 if (arg3) {
10700 v = lock_user(VERIFY_WRITE, arg3, arg4, 0);
10701 if (!v) {
72eb7ea8 10702 return -TARGET_EFAULT;
30297b55
PM		 10703 }
10704 }
10705 n = lock_user_string(arg2);
10706 if (n) {
10707 ret = get_errno(fgetxattr(arg1, n, v, arg4));
10708 } else {
10709 ret = -TARGET_EFAULT;
10710 }
10711 unlock_user(n, arg2, 0);
10712 unlock_user(v, arg3, arg4);
10713 }
72eb7ea8 10714 return ret;
a790ae38 10715 case TARGET_NR_removexattr:
30297b55 10716 case TARGET_NR_lremovexattr:
a790ae38
ACH		 10717 {
10718 void *p, *n;
10719 p = lock_user_string(arg1);
10720 n = lock_user_string(arg2);
10721 if (p && n) {
30297b55
PM		 10722 if (num == TARGET_NR_removexattr) {
10723 ret = get_errno(removexattr(p, n));
10724 } else {
10725 ret = get_errno(lremovexattr(p, n));
10726 }
a790ae38
ACH		 10727 } else {
10728 ret = -TARGET_EFAULT;
10729 }
10730 unlock_user(p, arg1, 0);
10731 unlock_user(n, arg2, 0);
10732 }
72eb7ea8 10733 return ret;
30297b55
PM		 10734 case TARGET_NR_fremovexattr:
10735 {
10736 void *n;
10737 n = lock_user_string(arg2);
10738 if (n) {
10739 ret = get_errno(fremovexattr(arg1, n));
10740 } else {
10741 ret = -TARGET_EFAULT;
10742 }
10743 unlock_user(n, arg2, 0);
10744 }
72eb7ea8 10745 return ret;
ebc05488 10746#endif
a790ae38 10747#endif /* CONFIG_ATTR */
ebc05488 10748#ifdef TARGET_NR_set_thread_area
5cd4393b 10749 case TARGET_NR_set_thread_area:
8d18e893 10750#if defined(TARGET_MIPS)
d279279e 10751 ((CPUMIPSState *) cpu_env)->active_tc.CP0_UserLocal = arg1;
72eb7ea8 10752 return 0;
ef96779b
EI		 10753#elif defined(TARGET_CRIS)
10754 if (arg1 & 0xff)
10755 ret = -TARGET_EINVAL;
10756 else {
10757 ((CPUCRISState *) cpu_env)->pregs[PR_PID] = arg1;
10758 ret = 0;
10759 }
72eb7ea8 10760 return ret;
8d18e893 10761#elif defined(TARGET_I386) && defined(TARGET_ABI32)
72eb7ea8 10762 return do_set_thread_area(cpu_env, arg1);
1ccd9374
PM		 10763#elif defined(TARGET_M68K)
10764 {
0429a971 10765 TaskState *ts = cpu->opaque;
1ccd9374 10766 ts->tp_value = arg1;
72eb7ea8 10767 return 0;
1ccd9374 10768 }
6f5b89a0 10769#else
10f45d98 10770 return -TARGET_ENOSYS;
6f5b89a0
TS		 10771#endif
10772#endif
10773#ifdef TARGET_NR_get_thread_area
5cd4393b 10774 case TARGET_NR_get_thread_area:
8d18e893 10775#if defined(TARGET_I386) && defined(TARGET_ABI32)
72eb7ea8 10776 return do_get_thread_area(cpu_env, arg1);
1ccd9374
PM		 10777#elif defined(TARGET_M68K)
10778 {
0429a971 10779 TaskState *ts = cpu->opaque;
72eb7ea8 10780 return ts->tp_value;
1ccd9374 10781 }
8d18e893 10782#else
10f45d98 10783 return -TARGET_ENOSYS;
48dc41eb 10784#endif
8d18e893 10785#endif
48dc41eb
FB		 10786#ifdef TARGET_NR_getdomainname
10787 case TARGET_NR_getdomainname:
10f45d98 10788 return -TARGET_ENOSYS;
ebc05488 10789#endif
6f5b89a0 10790
12e3340c
MF		 10791#ifdef TARGET_NR_clock_settime
10792 case TARGET_NR_clock_settime:
10793 {
10794 struct timespec ts;
10795
10796 ret = target_to_host_timespec(&ts, arg2);
10797 if (!is_error(ret)) {
10798 ret = get_errno(clock_settime(arg1, &ts));
10799 }
72eb7ea8 10800 return ret;
12e3340c
MF		 10801 }
10802#endif
b5906f95
TS		 10803#ifdef TARGET_NR_clock_gettime
10804 case TARGET_NR_clock_gettime:
10805 {
10806 struct timespec ts;
10807 ret = get_errno(clock_gettime(arg1, &ts));
10808 if (!is_error(ret)) {
b9f9908e 10809 ret = host_to_target_timespec(arg2, &ts);
b5906f95 10810 }
72eb7ea8 10811 return ret;
b5906f95
TS		 10812 }
10813#endif
10814#ifdef TARGET_NR_clock_getres
10815 case TARGET_NR_clock_getres:
10816 {
10817 struct timespec ts;
10818 ret = get_errno(clock_getres(arg1, &ts));
10819 if (!is_error(ret)) {
10820 host_to_target_timespec(arg2, &ts);
10821 }
72eb7ea8 10822 return ret;
b5906f95
TS		 10823 }
10824#endif
63d7651b
PB		 10825#ifdef TARGET_NR_clock_nanosleep
10826 case TARGET_NR_clock_nanosleep:
10827 {
10828 struct timespec ts;
10829 target_to_host_timespec(&ts, arg3);
9e518226
PM		 10830 ret = get_errno(safe_clock_nanosleep(arg1, arg2,
10831 &ts, arg4 ? &ts : NULL));
63d7651b
PB		 10832 if (arg4)
10833 host_to_target_timespec(arg4, &ts);
8fbe8fdf
TM		 10834
10835#if defined(TARGET_PPC)
10836 /* clock_nanosleep is odd in that it returns positive errno values.
10837 * On PPC, CR0 bit 3 should be set in such a situation. */
9e518226 10838 if (ret && ret != -TARGET_ERESTARTSYS) {
8fbe8fdf
TM		 10839 ((CPUPPCState *)cpu_env)->crf[0] |= 1;
10840 }
10841#endif
72eb7ea8 10842 return ret;
63d7651b
PB		 10843 }
10844#endif
b5906f95 10845
6f5b89a0
TS		 10846#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
10847 case TARGET_NR_set_tid_address:
72eb7ea8 10848 return get_errno(set_tid_address((int *)g2h(arg1)));
6f5b89a0
TS		 10849#endif
10850
4cae1d16 10851 case TARGET_NR_tkill:
72eb7ea8 10852 return get_errno(safe_tkill((int)arg1, target_to_host_signal(arg2)));
4cae1d16 10853
71455574 10854 case TARGET_NR_tgkill:
72eb7ea8
RH		 10855 return get_errno(safe_tgkill((int)arg1, (int)arg2,
10856 target_to_host_signal(arg3)));
71455574 10857
4f2b1fe8
TS		 10858#ifdef TARGET_NR_set_robust_list
10859 case TARGET_NR_set_robust_list:
e9a970a8
PM		 10860 case TARGET_NR_get_robust_list:
10861 /* The ABI for supporting robust futexes has userspace pass
10862 * the kernel a pointer to a linked list which is updated by
10863 * userspace after the syscall; the list is walked by the kernel
10864 * when the thread exits. Since the linked list in QEMU guest
10865 * memory isn't a valid linked list for the host and we have
10866 * no way to reliably intercept the thread-death event, we can't
10867 * support these. Silently return ENOSYS so that guest userspace
10868 * falls back to a non-robust futex implementation (which should
10869 * be OK except in the corner case of the guest crashing while
10870 * holding a mutex that is shared with another process via
10871 * shared memory).
10872 */
10f45d98 10873 return -TARGET_ENOSYS;
4f2b1fe8
TS		 10874#endif
10875
1acae9f2 10876#if defined(TARGET_NR_utimensat)
9007f0ef
TS		 10877 case TARGET_NR_utimensat:
10878 {
ebc996f3
RV		 10879 struct timespec *tsp, ts[2];
10880 if (!arg3) {
10881 tsp = NULL;
10882 } else {
10883 target_to_host_timespec(ts, arg3);
10884 target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec));
10885 tsp = ts;
10886 }
9007f0ef 10887 if (!arg2)
ebc996f3 10888 ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4));
9007f0ef 10889 else {
579a97f7 10890 if (!(p = lock_user_string(arg2))) {
259841c1 10891 return -TARGET_EFAULT;
579a97f7 10892 }
ebc996f3 10893 ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4));
579a97f7 10894 unlock_user(p, arg2, 0);
9007f0ef
TS		 10895 }
10896 }
72eb7ea8 10897 return ret;
9007f0ef 10898#endif
bd0c5661 10899 case TARGET_NR_futex:
72eb7ea8 10900 return do_futex(arg1, arg2, arg3, arg4, arg5, arg6);
dbfe4c36 10901#if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
39b59763
AJ		 10902 case TARGET_NR_inotify_init:
10903 ret = get_errno(sys_inotify_init());
b929f7e5
PMD		 10904 if (ret >= 0) {
10905 fd_trans_register(ret, &target_inotify_trans);
10906 }
72eb7ea8 10907 return ret;
39b59763 10908#endif
a1606b0b 10909#ifdef CONFIG_INOTIFY1
c05c7a73
RV		 10910#if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
10911 case TARGET_NR_inotify_init1:
fea243e9
LD		 10912 ret = get_errno(sys_inotify_init1(target_to_host_bitmask(arg1,
10913 fcntl_flags_tbl)));
b929f7e5
PMD		 10914 if (ret >= 0) {
10915 fd_trans_register(ret, &target_inotify_trans);
10916 }
72eb7ea8 10917 return ret;
c05c7a73 10918#endif
a1606b0b 10919#endif
dbfe4c36 10920#if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
39b59763
AJ		 10921 case TARGET_NR_inotify_add_watch:
10922 p = lock_user_string(arg2);
10923 ret = get_errno(sys_inotify_add_watch(arg1, path(p), arg3));
10924 unlock_user(p, arg2, 0);
72eb7ea8 10925 return ret;
39b59763 10926#endif
dbfe4c36 10927#if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
39b59763 10928 case TARGET_NR_inotify_rm_watch:
72eb7ea8 10929 return get_errno(sys_inotify_rm_watch(arg1, arg2));
39b59763 10930#endif
9007f0ef 10931
8ec9cf89 10932#if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
24e1003a
AJ		 10933 case TARGET_NR_mq_open:
10934 {
c7536ab6 10935 struct mq_attr posix_mq_attr;
26400775 10936 struct mq_attr *pposix_mq_attr;
c7536ab6 10937 int host_flags;
24e1003a 10938
c7536ab6 10939 host_flags = target_to_host_bitmask(arg2, fcntl_flags_tbl);
26400775
LD		 10940 pposix_mq_attr = NULL;
10941 if (arg4) {
10942 if (copy_from_user_mq_attr(&posix_mq_attr, arg4) != 0) {
2852aafd 10943 return -TARGET_EFAULT;
26400775
LD		 10944 }
10945 pposix_mq_attr = &posix_mq_attr;
c7536ab6 10946 }
24e1003a 10947 p = lock_user_string(arg1 - 1);
c7536ab6 10948 if (!p) {
2852aafd 10949 return -TARGET_EFAULT;
b6ce1f6b 10950 }
26400775 10951 ret = get_errno(mq_open(p, host_flags, arg3, pposix_mq_attr));
24e1003a
AJ		 10952 unlock_user (p, arg1, 0);
10953 }
72eb7ea8 10954 return ret;
24e1003a
AJ		 10955
10956 case TARGET_NR_mq_unlink:
10957 p = lock_user_string(arg1 - 1);
3211215e 10958 if (!p) {
72eb7ea8 10959 return -TARGET_EFAULT;
3211215e 10960 }
24e1003a
AJ		 10961 ret = get_errno(mq_unlink(p));
10962 unlock_user (p, arg1, 0);
72eb7ea8 10963 return ret;
24e1003a
AJ		 10964
10965 case TARGET_NR_mq_timedsend:
10966 {
10967 struct timespec ts;
10968
10969 p = lock_user (VERIFY_READ, arg2, arg3, 1);
10970 if (arg5 != 0) {
10971 target_to_host_timespec(&ts, arg5);
d40ecd66 10972 ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, &ts));
24e1003a 10973 host_to_target_timespec(arg5, &ts);
d40ecd66
PM		 10974 } else {
10975 ret = get_errno(safe_mq_timedsend(arg1, p, arg3, arg4, NULL));
24e1003a 10976 }
24e1003a
AJ		 10977 unlock_user (p, arg2, arg3);
10978 }
72eb7ea8 10979 return ret;
24e1003a
AJ		 10980
10981 case TARGET_NR_mq_timedreceive:
10982 {
10983 struct timespec ts;
10984 unsigned int prio;
10985
10986 p = lock_user (VERIFY_READ, arg2, arg3, 1);
10987 if (arg5 != 0) {
10988 target_to_host_timespec(&ts, arg5);
d40ecd66
PM		 10989 ret = get_errno(safe_mq_timedreceive(arg1, p, arg3,
10990 &prio, &ts));
24e1003a 10991 host_to_target_timespec(arg5, &ts);
d40ecd66
PM		 10992 } else {
10993 ret = get_errno(safe_mq_timedreceive(arg1, p, arg3,
10994 &prio, NULL));
24e1003a 10995 }
24e1003a
AJ		 10996 unlock_user (p, arg2, arg3);
10997 if (arg4 != 0)
10998 put_user_u32(prio, arg4);
10999 }
72eb7ea8 11000 return ret;
24e1003a
AJ		 11001
11002 /* Not implemented for now... */
11003/* case TARGET_NR_mq_notify: */
11004/* break; */
11005
11006 case TARGET_NR_mq_getsetattr:
11007 {
11008 struct mq_attr posix_mq_attr_in, posix_mq_attr_out;
11009 ret = 0;
24e1003a
AJ		 11010 if (arg2 != 0) {
11011 copy_from_user_mq_attr(&posix_mq_attr_in, arg2);
a23ea409
MF		 11012 ret = get_errno(mq_setattr(arg1, &posix_mq_attr_in,
11013 &posix_mq_attr_out));
11014 } else if (arg3 != 0) {
11015 ret = get_errno(mq_getattr(arg1, &posix_mq_attr_out));
11016 }
11017 if (ret == 0 && arg3 != 0) {
11018 copy_to_user_mq_attr(arg3, &posix_mq_attr_out);
24e1003a 11019 }
24e1003a 11020 }
72eb7ea8 11021 return ret;
24e1003a
AJ		 11022#endif
11023
3ce34dfb
VS		 11024#ifdef CONFIG_SPLICE
11025#ifdef TARGET_NR_tee
11026 case TARGET_NR_tee:
11027 {
11028 ret = get_errno(tee(arg1,arg2,arg3,arg4));
11029 }
72eb7ea8 11030 return ret;
3ce34dfb
VS		 11031#endif
11032#ifdef TARGET_NR_splice
11033 case TARGET_NR_splice:
11034 {
11035 loff_t loff_in, loff_out;
11036 loff_t *ploff_in = NULL, *ploff_out = NULL;
17644b36
AS		 11037 if (arg2) {
11038 if (get_user_u64(loff_in, arg2)) {
2852aafd 11039 return -TARGET_EFAULT;
17644b36 11040 }
3ce34dfb
VS		 11041 ploff_in = &loff_in;
11042 }
17644b36
AS		 11043 if (arg4) {
11044 if (get_user_u64(loff_out, arg4)) {
2852aafd 11045 return -TARGET_EFAULT;
17644b36 11046 }
3ce34dfb
VS		 11047 ploff_out = &loff_out;
11048 }
11049 ret = get_errno(splice(arg1, ploff_in, arg3, ploff_out, arg5, arg6));
17644b36
AS		 11050 if (arg2) {
11051 if (put_user_u64(loff_in, arg2)) {
2852aafd 11052 return -TARGET_EFAULT;
17644b36
AS		 11053 }
11054 }
11055 if (arg4) {
11056 if (put_user_u64(loff_out, arg4)) {
2852aafd 11057 return -TARGET_EFAULT;
17644b36
AS		 11058 }
11059 }
3ce34dfb 11060 }
72eb7ea8 11061 return ret;
3ce34dfb
VS		 11062#endif
11063#ifdef TARGET_NR_vmsplice
11064 case TARGET_NR_vmsplice:
11065 {
f287b2c2
RH		 11066 struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1);
11067 if (vec != NULL) {
11068 ret = get_errno(vmsplice(arg1, vec, arg3, arg4));
11069 unlock_iovec(vec, arg2, arg3, 0);
11070 } else {
11071 ret = -host_to_target_errno(errno);
11072 }
3ce34dfb 11073 }
72eb7ea8 11074 return ret;
3ce34dfb
VS		 11075#endif
11076#endif /* CONFIG_SPLICE */
c2882b96
RV		 11077#ifdef CONFIG_EVENTFD
11078#if defined(TARGET_NR_eventfd)
11079 case TARGET_NR_eventfd:
11080 ret = get_errno(eventfd(arg1, 0));
b929f7e5
PMD		 11081 if (ret >= 0) {
11082 fd_trans_register(ret, &target_eventfd_trans);
11083 }
72eb7ea8 11084 return ret;
c2882b96
RV		 11085#endif
11086#if defined(TARGET_NR_eventfd2)
11087 case TARGET_NR_eventfd2:
5947c697
PJ		 11088 {
11089 int host_flags = arg2 & (~(TARGET_O_NONBLOCK | TARGET_O_CLOEXEC));
11090 if (arg2 & TARGET_O_NONBLOCK) {
11091 host_flags |= O_NONBLOCK;
11092 }
11093 if (arg2 & TARGET_O_CLOEXEC) {
11094 host_flags |= O_CLOEXEC;
11095 }
11096 ret = get_errno(eventfd(arg1, host_flags));
b929f7e5
PMD		 11097 if (ret >= 0) {
11098 fd_trans_register(ret, &target_eventfd_trans);
11099 }
72eb7ea8 11100 return ret;
5947c697 11101 }
c2882b96
RV		 11102#endif
11103#endif /* CONFIG_EVENTFD */
d0927938
UH		 11104#if defined(CONFIG_FALLOCATE) && defined(TARGET_NR_fallocate)
11105 case TARGET_NR_fallocate:
20249ae1
AG		 11106#if TARGET_ABI_BITS == 32
11107 ret = get_errno(fallocate(arg1, arg2, target_offset64(arg3, arg4),
11108 target_offset64(arg5, arg6)));
11109#else
d0927938 11110 ret = get_errno(fallocate(arg1, arg2, arg3, arg4));
20249ae1 11111#endif
72eb7ea8 11112 return ret;
c727f47d
PM		 11113#endif
11114#if defined(CONFIG_SYNC_FILE_RANGE)
11115#if defined(TARGET_NR_sync_file_range)
11116 case TARGET_NR_sync_file_range:
11117#if TARGET_ABI_BITS == 32
bfcedc57
RV		 11118#if defined(TARGET_MIPS)
11119 ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
11120 target_offset64(arg5, arg6), arg7));
11121#else
c727f47d
PM		 11122 ret = get_errno(sync_file_range(arg1, target_offset64(arg2, arg3),
11123 target_offset64(arg4, arg5), arg6));
bfcedc57 11124#endif /* !TARGET_MIPS */
c727f47d
PM		 11125#else
11126 ret = get_errno(sync_file_range(arg1, arg2, arg3, arg4));
11127#endif
72eb7ea8 11128 return ret;
c727f47d
PM		 11129#endif
11130#if defined(TARGET_NR_sync_file_range2)
11131 case TARGET_NR_sync_file_range2:
11132 /* This is like sync_file_range but the arguments are reordered */
11133#if TARGET_ABI_BITS == 32
11134 ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4),
11135 target_offset64(arg5, arg6), arg2));
11136#else
11137 ret = get_errno(sync_file_range(arg1, arg3, arg4, arg2));
11138#endif
72eb7ea8 11139 return ret;
c727f47d 11140#endif
3b6edd16 11141#endif
e36800c9
LV		 11142#if defined(TARGET_NR_signalfd4)
11143 case TARGET_NR_signalfd4:
72eb7ea8 11144 return do_signalfd4(arg1, arg2, arg4);
e36800c9
LV		 11145#endif
11146#if defined(TARGET_NR_signalfd)
11147 case TARGET_NR_signalfd:
72eb7ea8 11148 return do_signalfd4(arg1, arg2, 0);
e36800c9 11149#endif
3b6edd16
PM		 11150#if defined(CONFIG_EPOLL)
11151#if defined(TARGET_NR_epoll_create)
11152 case TARGET_NR_epoll_create:
72eb7ea8 11153 return get_errno(epoll_create(arg1));
3b6edd16
PM		 11154#endif
11155#if defined(TARGET_NR_epoll_create1) && defined(CONFIG_EPOLL_CREATE1)
11156 case TARGET_NR_epoll_create1:
72eb7ea8 11157 return get_errno(epoll_create1(arg1));
3b6edd16
PM		 11158#endif
11159#if defined(TARGET_NR_epoll_ctl)
11160 case TARGET_NR_epoll_ctl:
11161 {
11162 struct epoll_event ep;
11163 struct epoll_event *epp = 0;
11164 if (arg4) {
11165 struct target_epoll_event *target_ep;
11166 if (!lock_user_struct(VERIFY_READ, target_ep, arg4, 1)) {
2852aafd 11167 return -TARGET_EFAULT;
3b6edd16
PM		 11168 }
11169 ep.events = tswap32(target_ep->events);
11170 /* The epoll_data_t union is just opaque data to the kernel,
11171 * so we transfer all 64 bits across and need not worry what
11172 * actual data type it is.
11173 */
11174 ep.data.u64 = tswap64(target_ep->data.u64);
11175 unlock_user_struct(target_ep, arg4, 0);
11176 epp = &ep;
11177 }
72eb7ea8 11178 return get_errno(epoll_ctl(arg1, arg2, arg3, epp));
3b6edd16
PM		 11179 }
11180#endif
11181
227f0214 11182#if defined(TARGET_NR_epoll_wait) || defined(TARGET_NR_epoll_pwait)
3b6edd16
PM		 11183#if defined(TARGET_NR_epoll_wait)
11184 case TARGET_NR_epoll_wait:
11185#endif
227f0214 11186#if defined(TARGET_NR_epoll_pwait)
3b6edd16
PM		 11187 case TARGET_NR_epoll_pwait:
11188#endif
11189 {
11190 struct target_epoll_event *target_ep;
11191 struct epoll_event *ep;
11192 int epfd = arg1;
11193 int maxevents = arg3;
11194 int timeout = arg4;
11195
2ba7fae3 11196 if (maxevents <= 0 || maxevents > TARGET_EP_MAX_EVENTS) {
72eb7ea8 11197 return -TARGET_EINVAL;
2ba7fae3
PM		 11198 }
11199
3b6edd16
PM		 11200 target_ep = lock_user(VERIFY_WRITE, arg2,
11201 maxevents * sizeof(struct target_epoll_event), 1);
11202 if (!target_ep) {
2852aafd 11203 return -TARGET_EFAULT;
3b6edd16
PM		 11204 }
11205
04c95f4d
PM		 11206 ep = g_try_new(struct epoll_event, maxevents);
11207 if (!ep) {
11208 unlock_user(target_ep, arg2, 0);
72eb7ea8 11209 return -TARGET_ENOMEM;
04c95f4d 11210 }
3b6edd16
PM		 11211
11212 switch (num) {
227f0214 11213#if defined(TARGET_NR_epoll_pwait)
3b6edd16
PM		 11214 case TARGET_NR_epoll_pwait:
11215 {
11216 target_sigset_t *target_set;
11217 sigset_t _set, *set = &_set;
11218
11219 if (arg5) {
c815701e
PM		 11220 if (arg6 != sizeof(target_sigset_t)) {
11221 ret = -TARGET_EINVAL;
11222 break;
11223 }
11224
3b6edd16
PM		 11225 target_set = lock_user(VERIFY_READ, arg5,
11226 sizeof(target_sigset_t), 1);
11227 if (!target_set) {
04c95f4d
PM		 11228 ret = -TARGET_EFAULT;
11229 break;
3b6edd16
PM		 11230 }
11231 target_to_host_sigset(set, target_set);
11232 unlock_user(target_set, arg5, 0);
11233 } else {
11234 set = NULL;
11235 }
11236
227f0214
PM		 11237 ret = get_errno(safe_epoll_pwait(epfd, ep, maxevents, timeout,
11238 set, SIGSET_T_SIZE));
3b6edd16
PM		 11239 break;
11240 }
11241#endif
11242#if defined(TARGET_NR_epoll_wait)
11243 case TARGET_NR_epoll_wait:
227f0214
PM		 11244 ret = get_errno(safe_epoll_pwait(epfd, ep, maxevents, timeout,
11245 NULL, 0));
3b6edd16
PM		 11246 break;
11247#endif
11248 default:
11249 ret = -TARGET_ENOSYS;
11250 }
11251 if (!is_error(ret)) {
11252 int i;
11253 for (i = 0; i < ret; i++) {
11254 target_ep[i].events = tswap32(ep[i].events);
11255 target_ep[i].data.u64 = tswap64(ep[i].data.u64);
11256 }
04c95f4d
PM		 11257 unlock_user(target_ep, arg2,
11258 ret * sizeof(struct target_epoll_event));
11259 } else {
11260 unlock_user(target_ep, arg2, 0);
3b6edd16 11261 }
04c95f4d 11262 g_free(ep);
72eb7ea8 11263 return ret;
3b6edd16
PM		 11264 }
11265#endif
163a05a8
PM		 11266#endif
11267#ifdef TARGET_NR_prlimit64
11268 case TARGET_NR_prlimit64:
11269 {
11270 /* args: pid, resource number, ptr to new rlimit, ptr to old rlimit */
11271 struct target_rlimit64 *target_rnew, *target_rold;
11272 struct host_rlimit64 rnew, rold, *rnewp = 0;
95018018 11273 int resource = target_to_host_resource(arg2);
163a05a8
PM		 11274 if (arg3) {
11275 if (!lock_user_struct(VERIFY_READ, target_rnew, arg3, 1)) {
2852aafd 11276 return -TARGET_EFAULT;
163a05a8
PM		 11277 }
11278 rnew.rlim_cur = tswap64(target_rnew->rlim_cur);
11279 rnew.rlim_max = tswap64(target_rnew->rlim_max);
11280 unlock_user_struct(target_rnew, arg3, 0);
11281 rnewp = &rnew;
11282 }
11283
95018018 11284 ret = get_errno(sys_prlimit64(arg1, resource, rnewp, arg4 ? &rold : 0));
163a05a8
PM		 11285 if (!is_error(ret) && arg4) {
11286 if (!lock_user_struct(VERIFY_WRITE, target_rold, arg4, 1)) {
2852aafd 11287 return -TARGET_EFAULT;
163a05a8
PM		 11288 }
11289 target_rold->rlim_cur = tswap64(rold.rlim_cur);
11290 target_rold->rlim_max = tswap64(rold.rlim_max);
11291 unlock_user_struct(target_rold, arg4, 1);
11292 }
72eb7ea8 11293 return ret;
163a05a8 11294 }
3d21d29c
RH		 11295#endif
11296#ifdef TARGET_NR_gethostname
11297 case TARGET_NR_gethostname:
11298 {
11299 char *name = lock_user(VERIFY_WRITE, arg1, arg2, 0);
11300 if (name) {
11301 ret = get_errno(gethostname(name, arg2));
11302 unlock_user(name, arg1, arg2);
11303 } else {
11304 ret = -TARGET_EFAULT;
11305 }
72eb7ea8 11306 return ret;
3d21d29c 11307 }
89aaf1a6
RV		 11308#endif
11309#ifdef TARGET_NR_atomic_cmpxchg_32
11310 case TARGET_NR_atomic_cmpxchg_32:
11311 {
11312 /* should use start_exclusive from main.c */
11313 abi_ulong mem_value;
11314 if (get_user_u32(mem_value, arg6)) {
11315 target_siginfo_t info;
11316 info.si_signo = SIGSEGV;
11317 info.si_errno = 0;
11318 info.si_code = TARGET_SEGV_MAPERR;
11319 info._sifields._sigfault._addr = arg6;
9d2803f7
PM		 11320 queue_signal((CPUArchState *)cpu_env, info.si_signo,
11321 QEMU_SI_FAULT, &info);
89aaf1a6
RV		 11322 ret = 0xdeadbeef;
11323
11324 }
11325 if (mem_value == arg2)
11326 put_user_u32(arg1, arg6);
72eb7ea8 11327 return mem_value;
89aaf1a6
RV		 11328 }
11329#endif
11330#ifdef TARGET_NR_atomic_barrier
11331 case TARGET_NR_atomic_barrier:
72eb7ea8
RH		 11332 /* Like the kernel implementation and the
11333 qemu arm barrier, no-op this? */
11334 return 0;
d0927938 11335#endif
f4f1e10a
ECL		 11336
11337#ifdef TARGET_NR_timer_create
11338 case TARGET_NR_timer_create:
11339 {
11340 /* args: clockid_t clockid, struct sigevent *sevp, timer_t *timerid */
11341
11342 struct sigevent host_sevp = { {0}, }, *phost_sevp = NULL;
f4f1e10a
ECL		 11343
11344 int clkid = arg1;
11345 int timer_index = next_free_host_timer();
11346
11347 if (timer_index < 0) {
11348 ret = -TARGET_EAGAIN;
11349 } else {
11350 timer_t *phtimer = g_posix_timers + timer_index;
11351
11352 if (arg2) {
f4f1e10a 11353 phost_sevp = &host_sevp;
c065976f
PM		 11354 ret = target_to_host_sigevent(phost_sevp, arg2);
11355 if (ret != 0) {
72eb7ea8 11356 return ret;
c065976f 11357 }
f4f1e10a
ECL		 11358 }
11359
11360 ret = get_errno(timer_create(clkid, phost_sevp, phtimer));
11361 if (ret) {
11362 phtimer = NULL;
11363 } else {
aecc8861 11364 if (put_user(TIMER_MAGIC | timer_index, arg3, target_timer_t)) {
2852aafd 11365 return -TARGET_EFAULT;
f4f1e10a 11366 }
f4f1e10a
ECL		 11367 }
11368 }
72eb7ea8 11369 return ret;
f4f1e10a
ECL		 11370 }
11371#endif
11372
11373#ifdef TARGET_NR_timer_settime
11374 case TARGET_NR_timer_settime:
11375 {
11376 /* args: timer_t timerid, int flags, const struct itimerspec *new_value,
11377 * struct itimerspec * old_value */
aecc8861 11378 target_timer_t timerid = get_timer_id(arg1);
e52a99f7 11379
aecc8861
AG		 11380 if (timerid < 0) {
11381 ret = timerid;
11382 } else if (arg3 == 0) {
f4f1e10a
ECL		 11383 ret = -TARGET_EINVAL;
11384 } else {
e52a99f7 11385 timer_t htimer = g_posix_timers[timerid];
f4f1e10a
ECL		 11386 struct itimerspec hspec_new = {{0},}, hspec_old = {{0},};
11387
40c80b5e 11388 if (target_to_host_itimerspec(&hspec_new, arg3)) {
2852aafd 11389 return -TARGET_EFAULT;
40c80b5e 11390 }
f4f1e10a
ECL		 11391 ret = get_errno(
11392 timer_settime(htimer, arg2, &hspec_new, &hspec_old));
40c80b5e 11393 if (arg4 && host_to_target_itimerspec(arg4, &hspec_old)) {
2852aafd 11394 return -TARGET_EFAULT;
40c80b5e 11395 }
f4f1e10a 11396 }
72eb7ea8 11397 return ret;
f4f1e10a
ECL		 11398 }
11399#endif
11400
11401#ifdef TARGET_NR_timer_gettime
11402 case TARGET_NR_timer_gettime:
11403 {
11404 /* args: timer_t timerid, struct itimerspec *curr_value */
aecc8861 11405 target_timer_t timerid = get_timer_id(arg1);
e52a99f7 11406
aecc8861
AG		 11407 if (timerid < 0) {
11408 ret = timerid;
11409 } else if (!arg2) {
11410 ret = -TARGET_EFAULT;
f4f1e10a 11411 } else {
e52a99f7 11412 timer_t htimer = g_posix_timers[timerid];
f4f1e10a
ECL		 11413 struct itimerspec hspec;
11414 ret = get_errno(timer_gettime(htimer, &hspec));
11415
11416 if (host_to_target_itimerspec(arg2, &hspec)) {
11417 ret = -TARGET_EFAULT;
11418 }
11419 }
72eb7ea8 11420 return ret;
f4f1e10a
ECL		 11421 }
11422#endif
11423
11424#ifdef TARGET_NR_timer_getoverrun
11425 case TARGET_NR_timer_getoverrun:
11426 {
11427 /* args: timer_t timerid */
aecc8861 11428 target_timer_t timerid = get_timer_id(arg1);
e52a99f7 11429
aecc8861
AG		 11430 if (timerid < 0) {
11431 ret = timerid;
f4f1e10a 11432 } else {
e52a99f7 11433 timer_t htimer = g_posix_timers[timerid];
f4f1e10a
ECL		 11434 ret = get_errno(timer_getoverrun(htimer));
11435 }
e36800c9 11436 fd_trans_unregister(ret);
72eb7ea8 11437 return ret;
f4f1e10a
ECL		 11438 }
11439#endif
11440
11441#ifdef TARGET_NR_timer_delete
11442 case TARGET_NR_timer_delete:
11443 {
11444 /* args: timer_t timerid */
aecc8861 11445 target_timer_t timerid = get_timer_id(arg1);
e52a99f7 11446
aecc8861
AG		 11447 if (timerid < 0) {
11448 ret = timerid;
f4f1e10a 11449 } else {
e52a99f7 11450 timer_t htimer = g_posix_timers[timerid];
f4f1e10a 11451 ret = get_errno(timer_delete(htimer));
e52a99f7 11452 g_posix_timers[timerid] = 0;
f4f1e10a 11453 }
72eb7ea8 11454 return ret;
f4f1e10a
ECL		 11455 }
11456#endif
11457
51834341
RV		 11458#if defined(TARGET_NR_timerfd_create) && defined(CONFIG_TIMERFD)
11459 case TARGET_NR_timerfd_create:
72eb7ea8
RH		 11460 return get_errno(timerfd_create(arg1,
11461 target_to_host_bitmask(arg2, fcntl_flags_tbl)));
51834341
RV		 11462#endif
11463
11464#if defined(TARGET_NR_timerfd_gettime) && defined(CONFIG_TIMERFD)
11465 case TARGET_NR_timerfd_gettime:
11466 {
11467 struct itimerspec its_curr;
11468
11469 ret = get_errno(timerfd_gettime(arg1, &its_curr));
11470
11471 if (arg2 && host_to_target_itimerspec(arg2, &its_curr)) {
2852aafd 11472 return -TARGET_EFAULT;
51834341
RV		 11473 }
11474 }
72eb7ea8 11475 return ret;
51834341
RV		 11476#endif
11477
11478#if defined(TARGET_NR_timerfd_settime) && defined(CONFIG_TIMERFD)
11479 case TARGET_NR_timerfd_settime:
11480 {
11481 struct itimerspec its_new, its_old, *p_new;
11482
11483 if (arg3) {
11484 if (target_to_host_itimerspec(&its_new, arg3)) {
2852aafd 11485 return -TARGET_EFAULT;
51834341
RV		 11486 }
11487 p_new = &its_new;
11488 } else {
11489 p_new = NULL;
11490 }
11491
11492 ret = get_errno(timerfd_settime(arg1, arg2, p_new, &its_old));
11493
11494 if (arg4 && host_to_target_itimerspec(arg4, &its_old)) {
2852aafd 11495 return -TARGET_EFAULT;
51834341
RV		 11496 }
11497 }
72eb7ea8 11498 return ret;
51834341
RV		 11499#endif
11500
ab31cda3
PB		 11501#if defined(TARGET_NR_ioprio_get) && defined(__NR_ioprio_get)
11502 case TARGET_NR_ioprio_get:
72eb7ea8 11503 return get_errno(ioprio_get(arg1, arg2));
ab31cda3
PB		 11504#endif
11505
11506#if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set)
11507 case TARGET_NR_ioprio_set:
72eb7ea8 11508 return get_errno(ioprio_set(arg1, arg2, arg3));
ab31cda3
PB		 11509#endif
11510
9af5c906
RV		 11511#if defined(TARGET_NR_setns) && defined(CONFIG_SETNS)
11512 case TARGET_NR_setns:
72eb7ea8 11513 return get_errno(setns(arg1, arg2));
9af5c906
RV		 11514#endif
11515#if defined(TARGET_NR_unshare) && defined(CONFIG_SETNS)
11516 case TARGET_NR_unshare:
72eb7ea8 11517 return get_errno(unshare(arg1));
9af5c906 11518#endif
2f14788c
LV		 11519#if defined(TARGET_NR_kcmp) && defined(__NR_kcmp)
11520 case TARGET_NR_kcmp:
72eb7ea8 11521 return get_errno(kcmp(arg1, arg2, arg3, arg4, arg5));
2f14788c 11522#endif
fa97e38e
RH		 11523#ifdef TARGET_NR_swapcontext
11524 case TARGET_NR_swapcontext:
11525 /* PowerPC specific. */
72eb7ea8 11526 return do_swapcontext(cpu_env, arg1, arg2, arg3);
fa97e38e 11527#endif
9af5c906 11528
31e31b8a 11529 default:
122f9c83 11530 qemu_log_mask(LOG_UNIMP, "Unsupported syscall: %d\n", num);
72eb7ea8 11531 return -TARGET_ENOSYS;
31e31b8a 11532 }
31e31b8a
FB		 11533 return ret;
11534}
dc1ce18b
RH		 11535
11536abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
11537 abi_long arg2, abi_long arg3, abi_long arg4,
11538 abi_long arg5, abi_long arg6, abi_long arg7,
11539 abi_long arg8)
11540{
11541 CPUState *cpu = ENV_GET_CPU(cpu_env);
11542 abi_long ret;
11543
11544#ifdef DEBUG_ERESTARTSYS
11545 /* Debug-only code for exercising the syscall-restart code paths
11546 * in the per-architecture cpu main loops: restart every syscall
11547 * the guest makes once before letting it through.
11548 */
11549 {
11550 static bool flag;
11551 flag = !flag;
11552 if (flag) {
11553 return -TARGET_ERESTARTSYS;
11554 }
11555 }
11556#endif
11557
11558 trace_guest_user_syscall(cpu, num, arg1, arg2, arg3, arg4,
11559 arg5, arg6, arg7, arg8);
11560
11561 if (unlikely(do_strace)) {
11562 print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6);
11563 ret = do_syscall1(cpu_env, num, arg1, arg2, arg3, arg4,
11564 arg5, arg6, arg7, arg8);
11565 print_syscall_ret(num, ret);
11566 } else {
11567 ret = do_syscall1(cpu_env, num, arg1, arg2, arg3, arg4,
11568 arg5, arg6, arg7, arg8);
11569 }
11570
11571 trace_guest_user_syscall_ret(cpu, num, ret);
11572 return ret;
11573}
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