2 * arch/s390x/kernel/linux32.c
5 * Copyright (C) 2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
6 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
7 * Gerhard Tonn (ton@de.ibm.com)
8 * Thomas Spatzier (tspat@de.ibm.com)
10 * Conversion between 31bit and 64bit native syscalls.
12 * Heavily inspired by the 32-bit Sparc compat code which is
13 * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
14 * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
19 #include <linux/config.h>
20 #include <linux/kernel.h>
21 #include <linux/sched.h>
24 #include <linux/file.h>
25 #include <linux/signal.h>
26 #include <linux/resource.h>
27 #include <linux/times.h>
28 #include <linux/utsname.h>
29 #include <linux/timex.h>
30 #include <linux/smp.h>
31 #include <linux/smp_lock.h>
32 #include <linux/sem.h>
33 #include <linux/msg.h>
34 #include <linux/shm.h>
35 #include <linux/slab.h>
36 #include <linux/uio.h>
37 #include <linux/nfs_fs.h>
38 #include <linux/quota.h>
39 #include <linux/module.h>
40 #include <linux/sunrpc/svc.h>
41 #include <linux/nfsd/nfsd.h>
42 #include <linux/nfsd/cache.h>
43 #include <linux/nfsd/xdr.h>
44 #include <linux/nfsd/syscall.h>
45 #include <linux/poll.h>
46 #include <linux/personality.h>
47 #include <linux/stat.h>
48 #include <linux/filter.h>
49 #include <linux/highmem.h>
50 #include <linux/highuid.h>
51 #include <linux/mman.h>
52 #include <linux/ipv6.h>
54 #include <linux/icmpv6.h>
55 #include <linux/syscalls.h>
56 #include <linux/sysctl.h>
57 #include <linux/binfmts.h>
58 #include <linux/compat.h>
59 #include <linux/vfs.h>
60 #include <linux/ptrace.h>
62 #include <asm/types.h>
64 #include <asm/uaccess.h>
65 #include <asm/semaphore.h>
70 #include "compat_linux.h"
73 /* For this source file, we want overflow handling. */
83 #undef SET_OLDSTAT_UID
84 #undef SET_OLDSTAT_GID
88 #define high2lowuid(uid) ((uid) > 65535) ? (u16)overflowuid : (u16)(uid)
89 #define high2lowgid(gid) ((gid) > 65535) ? (u16)overflowgid : (u16)(gid)
90 #define low2highuid(uid) ((uid) == (u16)-1) ? (uid_t)-1 : (uid_t)(uid)
91 #define low2highgid(gid) ((gid) == (u16)-1) ? (gid_t)-1 : (gid_t)(gid)
92 #define SET_UID16(var, uid) var = high2lowuid(uid)
93 #define SET_GID16(var, gid) var = high2lowgid(gid)
94 #define NEW_TO_OLD_UID(uid) high2lowuid(uid)
95 #define NEW_TO_OLD_GID(gid) high2lowgid(gid)
96 #define SET_OLDSTAT_UID(stat, uid) (stat).st_uid = high2lowuid(uid)
97 #define SET_OLDSTAT_GID(stat, gid) (stat).st_gid = high2lowgid(gid)
98 #define SET_STAT_UID(stat, uid) (stat).st_uid = high2lowuid(uid)
99 #define SET_STAT_GID(stat, gid) (stat).st_gid = high2lowgid(gid)
101 asmlinkage long sys32_chown16(const char * filename, u16 user, u16 group)
103 return sys_chown(filename, low2highuid(user), low2highgid(group));
106 asmlinkage long sys32_lchown16(const char * filename, u16 user, u16 group)
108 return sys_lchown(filename, low2highuid(user), low2highgid(group));
111 asmlinkage long sys32_fchown16(unsigned int fd, u16 user, u16 group)
113 return sys_fchown(fd, low2highuid(user), low2highgid(group));
116 asmlinkage long sys32_setregid16(u16 rgid, u16 egid)
118 return sys_setregid(low2highgid(rgid), low2highgid(egid));
121 asmlinkage long sys32_setgid16(u16 gid)
123 return sys_setgid((gid_t)gid);
126 asmlinkage long sys32_setreuid16(u16 ruid, u16 euid)
128 return sys_setreuid(low2highuid(ruid), low2highuid(euid));
131 asmlinkage long sys32_setuid16(u16 uid)
133 return sys_setuid((uid_t)uid);
136 asmlinkage long sys32_setresuid16(u16 ruid, u16 euid, u16 suid)
138 return sys_setresuid(low2highuid(ruid), low2highuid(euid),
142 asmlinkage long sys32_getresuid16(u16 *ruid, u16 *euid, u16 *suid)
146 if (!(retval = put_user(high2lowuid(current->uid), ruid)) &&
147 !(retval = put_user(high2lowuid(current->euid), euid)))
148 retval = put_user(high2lowuid(current->suid), suid);
153 asmlinkage long sys32_setresgid16(u16 rgid, u16 egid, u16 sgid)
155 return sys_setresgid(low2highgid(rgid), low2highgid(egid),
159 asmlinkage long sys32_getresgid16(u16 *rgid, u16 *egid, u16 *sgid)
163 if (!(retval = put_user(high2lowgid(current->gid), rgid)) &&
164 !(retval = put_user(high2lowgid(current->egid), egid)))
165 retval = put_user(high2lowgid(current->sgid), sgid);
170 asmlinkage long sys32_setfsuid16(u16 uid)
172 return sys_setfsuid((uid_t)uid);
175 asmlinkage long sys32_setfsgid16(u16 gid)
177 return sys_setfsgid((gid_t)gid);
180 static int groups16_to_user(u16 *grouplist, struct group_info *group_info)
185 for (i = 0; i < group_info->ngroups; i++) {
186 group = (u16)GROUP_AT(group_info, i);
187 if (put_user(group, grouplist+i))
194 static int groups16_from_user(struct group_info *group_info, u16 *grouplist)
199 for (i = 0; i < group_info->ngroups; i++) {
200 if (get_user(group, grouplist+i))
202 GROUP_AT(group_info, i) = (gid_t)group;
208 asmlinkage long sys32_getgroups16(int gidsetsize, u16 *grouplist)
215 get_group_info(current->group_info);
216 i = current->group_info->ngroups;
218 if (i > gidsetsize) {
222 if (groups16_to_user(grouplist, current->group_info)) {
228 put_group_info(current->group_info);
232 asmlinkage long sys32_setgroups16(int gidsetsize, u16 *grouplist)
234 struct group_info *group_info;
237 if (!capable(CAP_SETGID))
239 if ((unsigned)gidsetsize > NGROUPS_MAX)
242 group_info = groups_alloc(gidsetsize);
245 retval = groups16_from_user(group_info, grouplist);
247 put_group_info(group_info);
251 retval = set_current_groups(group_info);
252 put_group_info(group_info);
257 asmlinkage long sys32_getuid16(void)
259 return high2lowuid(current->uid);
262 asmlinkage long sys32_geteuid16(void)
264 return high2lowuid(current->euid);
267 asmlinkage long sys32_getgid16(void)
269 return high2lowgid(current->gid);
272 asmlinkage long sys32_getegid16(void)
274 return high2lowgid(current->egid);
277 /* 32-bit timeval and related flotsam. */
279 static inline long get_tv32(struct timeval *o, struct compat_timeval *i)
281 return (!access_ok(VERIFY_READ, tv32, sizeof(*tv32)) ||
282 (__get_user(o->tv_sec, &i->tv_sec) ||
283 __get_user(o->tv_usec, &i->tv_usec)));
286 static inline long put_tv32(struct compat_timeval *o, struct timeval *i)
288 return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
289 (__put_user(i->tv_sec, &o->tv_sec) ||
290 __put_user(i->tv_usec, &o->tv_usec)));
294 * sys32_ipc() is the de-multiplexer for the SysV IPC calls in 32bit emulation.
296 * This is really horribly ugly.
298 asmlinkage long sys32_ipc(u32 call, int first, int second, int third, u32 ptr)
300 if (call >> 16) /* hack for backward compatibility */
307 return compat_sys_semtimedop(first, compat_ptr(ptr),
308 second, compat_ptr(third));
310 /* struct sembuf is the same on 32 and 64bit :)) */
311 return sys_semtimedop(first, compat_ptr(ptr),
314 return sys_semget(first, second, third);
316 return compat_sys_semctl(first, second, third,
319 return compat_sys_msgsnd(first, second, third,
322 return compat_sys_msgrcv(first, second, 0, third,
325 return sys_msgget((key_t) first, second);
327 return compat_sys_msgctl(first, second, compat_ptr(ptr));
329 return compat_sys_shmat(first, second, third,
332 return sys_shmdt(compat_ptr(ptr));
334 return sys_shmget(first, second, third);
336 return compat_sys_shmctl(first, second, compat_ptr(ptr));
342 asmlinkage long sys32_truncate64(const char * path, unsigned long high, unsigned long low)
347 return sys_truncate(path, (high << 32) | low);
350 asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long high, unsigned long low)
355 return sys_ftruncate(fd, (high << 32) | low);
358 typedef ssize_t (*io_fn_t)(struct file *, char *, size_t, loff_t *);
359 typedef ssize_t (*iov_fn_t)(struct file *, const struct iovec *, unsigned long, loff_t *);
361 static long do_readv_writev32(int type, struct file *file,
362 const struct compat_iovec *vector, u32 count)
364 unsigned long tot_len;
365 struct iovec iovstack[UIO_FASTIOV];
366 struct iovec *iov=iovstack, *ivp;
372 /* First get the "struct iovec" from user memory and
373 * verify all the pointers
377 if (verify_area(VERIFY_READ, vector, sizeof(struct compat_iovec)*count))
379 if (count > UIO_MAXIOV)
381 if (count > UIO_FASTIOV) {
382 iov = kmalloc(count*sizeof(struct iovec), GFP_KERNEL);
392 compat_ssize_t tmp = tot_len;
396 if (__get_user(len, &vector->iov_len) ||
397 __get_user(buf, &vector->iov_base)) {
401 if (len < 0) /* size_t not fitting an ssize_t32 .. */
404 if (tot_len < tmp) /* maths overflow on the compat_ssize_t */
406 ivp->iov_base = (void *)A(buf);
407 ivp->iov_len = (__kernel_size_t) len;
417 inode = file->f_dentry->d_inode;
418 /* VERIFY_WRITE actually means a read, as we write to user space */
419 retval = locks_verify_area((type == VERIFY_WRITE
420 ? FLOCK_VERIFY_READ : FLOCK_VERIFY_WRITE),
421 inode, file, file->f_pos, tot_len);
425 /* VERIFY_WRITE actually means a read, as we write to user space */
426 fnv = (type == VERIFY_WRITE ? file->f_op->readv : file->f_op->writev);
428 retval = fnv(file, iov, count, &file->f_pos);
432 fn = (type == VERIFY_WRITE ? file->f_op->read :
433 (io_fn_t) file->f_op->write);
440 base = ivp->iov_base;
444 nr = fn(file, base, len, &file->f_pos);
461 asmlinkage long sys32_readv(int fd, struct compat_iovec *vector, unsigned long count)
470 if (file->f_op && (file->f_mode & FMODE_READ) &&
471 (file->f_op->readv || file->f_op->read))
472 ret = do_readv_writev32(VERIFY_WRITE, file, vector, count);
479 asmlinkage long sys32_writev(int fd, struct compat_iovec *vector, unsigned long count)
487 if (file->f_op && (file->f_mode & FMODE_WRITE) &&
488 (file->f_op->writev || file->f_op->write))
489 ret = do_readv_writev32(VERIFY_READ, file, vector, count);
496 /* readdir & getdents */
498 #define NAME_OFFSET(de) ((int) ((de)->d_name - (char *) (de)))
499 #define ROUND_UP(x) (((x)+sizeof(u32)-1) & ~(sizeof(u32)-1))
501 struct old_linux_dirent32 {
504 unsigned short d_namlen;
508 struct readdir_callback32 {
509 struct old_linux_dirent32 * dirent;
513 static int fillonedir(void * __buf, const char * name, int namlen,
514 loff_t offset, ino_t ino, unsigned int d_type)
516 struct readdir_callback32 * buf = (struct readdir_callback32 *) __buf;
517 struct old_linux_dirent32 * dirent;
522 dirent = buf->dirent;
523 put_user(ino, &dirent->d_ino);
524 put_user(offset, &dirent->d_offset);
525 put_user(namlen, &dirent->d_namlen);
526 copy_to_user(dirent->d_name, name, namlen);
527 put_user(0, dirent->d_name + namlen);
531 asmlinkage long old32_readdir(unsigned int fd, struct old_linux_dirent32 *dirent, unsigned int count)
535 struct readdir_callback32 buf;
544 error = vfs_readdir(file, fillonedir, &buf);
555 struct linux_dirent32 {
558 unsigned short d_reclen;
562 struct getdents_callback32 {
563 struct linux_dirent32 * current_dir;
564 struct linux_dirent32 * previous;
569 static int filldir(void * __buf, const char * name, int namlen, loff_t offset, ino_t ino,
572 struct linux_dirent32 * dirent;
573 struct getdents_callback32 * buf = (struct getdents_callback32 *) __buf;
574 int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1);
576 buf->error = -EINVAL; /* only used if we fail.. */
577 if (reclen > buf->count)
579 dirent = buf->previous;
581 put_user(offset, &dirent->d_off);
582 dirent = buf->current_dir;
583 buf->previous = dirent;
584 put_user(ino, &dirent->d_ino);
585 put_user(reclen, &dirent->d_reclen);
586 copy_to_user(dirent->d_name, name, namlen);
587 put_user(0, dirent->d_name + namlen);
588 buf->current_dir = ((void *)dirent) + reclen;
589 buf->count -= reclen;
593 asmlinkage long sys32_getdents(unsigned int fd, struct linux_dirent32 *dirent, unsigned int count)
596 struct linux_dirent32 * lastdirent;
597 struct getdents_callback32 buf;
604 buf.current_dir = dirent;
609 error = vfs_readdir(file, filldir, &buf);
612 lastdirent = buf.previous;
615 put_user(file->f_pos, &lastdirent->d_off);
616 error = count - buf.count;
624 /* end of readdir & getdents */
627 * Ooo, nasty. We need here to frob 32-bit unsigned longs to
628 * 64-bit unsigned longs.
632 get_fd_set32(unsigned long n, unsigned long *fdset, u32 *ufdset)
637 if (verify_area(VERIFY_WRITE, ufdset, n*sizeof(u32)))
644 __get_user(l, ufdset);
645 __get_user(h, ufdset+1);
647 *fdset++ = h << 32 | l;
651 __get_user(*fdset, ufdset);
653 /* Tricky, must clear full unsigned long in the
654 * kernel fdset at the end, this makes sure that
657 memset(fdset, 0, ((n + 1) & ~1)*sizeof(u32));
663 set_fd_set32(unsigned long n, u32 *ufdset, unsigned long *fdset)
676 __put_user(l, ufdset);
677 __put_user(h, ufdset+1);
682 __put_user(*fdset, ufdset);
685 #define MAX_SELECT_SECONDS \
686 ((unsigned long) (MAX_SCHEDULE_TIMEOUT / HZ)-1)
688 asmlinkage long sys32_select(int n, u32 *inp, u32 *outp, u32 *exp,
689 struct compat_timeval *tvp)
697 timeout = MAX_SCHEDULE_TIMEOUT;
701 if ((ret = verify_area(VERIFY_READ, tvp, sizeof(*tvp)))
702 || (ret = __get_user(sec, &tvp->tv_sec))
703 || (ret = __get_user(usec, &tvp->tv_usec)))
707 if(sec < 0 || usec < 0)
710 if ((unsigned long) sec < MAX_SELECT_SECONDS) {
711 timeout = (usec + 1000000/HZ - 1) / (1000000/HZ);
712 timeout += sec * (unsigned long) HZ;
719 if (n > current->files->max_fdset)
720 n = current->files->max_fdset;
723 * We need 6 bitmaps (in/out/ex for both incoming and outgoing),
724 * since we used fdset we need to allocate memory in units of
729 bits = kmalloc(6 * size, GFP_KERNEL);
732 fds.in = (unsigned long *) bits;
733 fds.out = (unsigned long *) (bits + size);
734 fds.ex = (unsigned long *) (bits + 2*size);
735 fds.res_in = (unsigned long *) (bits + 3*size);
736 fds.res_out = (unsigned long *) (bits + 4*size);
737 fds.res_ex = (unsigned long *) (bits + 5*size);
739 nn = (n + 8*sizeof(u32) - 1) / (8*sizeof(u32));
740 if ((ret = get_fd_set32(nn, fds.in, inp)) ||
741 (ret = get_fd_set32(nn, fds.out, outp)) ||
742 (ret = get_fd_set32(nn, fds.ex, exp)))
744 zero_fd_set(n, fds.res_in);
745 zero_fd_set(n, fds.res_out);
746 zero_fd_set(n, fds.res_ex);
748 ret = do_select(n, &fds, &timeout);
750 if (tvp && !(current->personality & STICKY_TIMEOUTS)) {
751 int sec = 0, usec = 0;
755 usec *= (1000000/HZ);
757 put_user(sec, &tvp->tv_sec);
758 put_user(usec, &tvp->tv_usec);
764 ret = -ERESTARTNOHAND;
765 if (signal_pending(current))
770 set_fd_set32(nn, inp, fds.res_in);
771 set_fd_set32(nn, outp, fds.res_out);
772 set_fd_set32(nn, exp, fds.res_ex);
780 int cp_compat_stat(struct kstat *stat, struct compat_stat *statbuf)
784 if (!old_valid_dev(stat->dev) || !old_valid_dev(stat->rdev))
787 err = put_user(old_encode_dev(stat->dev), &statbuf->st_dev);
788 err |= put_user(stat->ino, &statbuf->st_ino);
789 err |= put_user(stat->mode, &statbuf->st_mode);
790 err |= put_user(stat->nlink, &statbuf->st_nlink);
791 err |= put_user(high2lowuid(stat->uid), &statbuf->st_uid);
792 err |= put_user(high2lowgid(stat->gid), &statbuf->st_gid);
793 err |= put_user(old_encode_dev(stat->rdev), &statbuf->st_rdev);
794 err |= put_user(stat->size, &statbuf->st_size);
795 err |= put_user(stat->atime.tv_sec, &statbuf->st_atime);
796 err |= put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec);
797 err |= put_user(stat->mtime.tv_sec, &statbuf->st_mtime);
798 err |= put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec);
799 err |= put_user(stat->ctime.tv_sec, &statbuf->st_ctime);
800 err |= put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec);
801 err |= put_user(stat->blksize, &statbuf->st_blksize);
802 err |= put_user(stat->blocks, &statbuf->st_blocks);
804 err |= put_user(0, &statbuf->__unused4[0]);
805 err |= put_user(0, &statbuf->__unused4[1]);
819 unsigned short procs;
823 unsigned int mem_unit;
827 asmlinkage long sys32_sysinfo(struct sysinfo32 __user *info)
831 mm_segment_t old_fs = get_fs ();
834 ret = sys_sysinfo(&s);
836 err = put_user (s.uptime, &info->uptime);
837 err |= __put_user (s.loads[0], &info->loads[0]);
838 err |= __put_user (s.loads[1], &info->loads[1]);
839 err |= __put_user (s.loads[2], &info->loads[2]);
840 err |= __put_user (s.totalram, &info->totalram);
841 err |= __put_user (s.freeram, &info->freeram);
842 err |= __put_user (s.sharedram, &info->sharedram);
843 err |= __put_user (s.bufferram, &info->bufferram);
844 err |= __put_user (s.totalswap, &info->totalswap);
845 err |= __put_user (s.freeswap, &info->freeswap);
846 err |= __put_user (s.procs, &info->procs);
847 err |= __put_user (s.totalhigh, &info->totalhigh);
848 err |= __put_user (s.freehigh, &info->freehigh);
849 err |= __put_user (s.mem_unit, &info->mem_unit);
855 asmlinkage long sys32_sched_rr_get_interval(compat_pid_t pid,
856 struct compat_timespec __user *interval)
860 mm_segment_t old_fs = get_fs ();
863 ret = sys_sched_rr_get_interval(pid, &t);
865 if (put_compat_timespec(&t, interval))
870 asmlinkage long sys32_rt_sigprocmask(int how, compat_sigset_t __user *set,
871 compat_sigset_t __user *oset, size_t sigsetsize)
876 mm_segment_t old_fs = get_fs();
879 if (copy_from_user (&s32, set, sizeof(compat_sigset_t)))
881 switch (_NSIG_WORDS) {
882 case 4: s.sig[3] = s32.sig[6] | (((long)s32.sig[7]) << 32);
883 case 3: s.sig[2] = s32.sig[4] | (((long)s32.sig[5]) << 32);
884 case 2: s.sig[1] = s32.sig[2] | (((long)s32.sig[3]) << 32);
885 case 1: s.sig[0] = s32.sig[0] | (((long)s32.sig[1]) << 32);
889 ret = sys_rt_sigprocmask(how, set ? &s : NULL, oset ? &s : NULL, sigsetsize);
893 switch (_NSIG_WORDS) {
894 case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
895 case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
896 case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
897 case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
899 if (copy_to_user (oset, &s32, sizeof(compat_sigset_t)))
905 asmlinkage long sys32_rt_sigpending(compat_sigset_t __user *set,
911 mm_segment_t old_fs = get_fs();
914 ret = sys_rt_sigpending(&s, sigsetsize);
917 switch (_NSIG_WORDS) {
918 case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
919 case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
920 case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
921 case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
923 if (copy_to_user (set, &s32, sizeof(compat_sigset_t)))
930 copy_siginfo_to_user32(siginfo_t32 *to, siginfo_t *from);
933 sys32_rt_sigtimedwait(compat_sigset_t *uthese, siginfo_t32 *uinfo,
934 struct compat_timespec *uts, size_t sigsetsize)
938 compat_sigset_t these32;
943 /* XXX: Don't preclude handling different sized sigset_t's. */
944 if (sigsetsize != sizeof(sigset_t))
947 if (copy_from_user (&these32, uthese, sizeof(compat_sigset_t)))
950 switch (_NSIG_WORDS) {
951 case 4: these.sig[3] = these32.sig[6] | (((long)these32.sig[7]) << 32);
952 case 3: these.sig[2] = these32.sig[4] | (((long)these32.sig[5]) << 32);
953 case 2: these.sig[1] = these32.sig[2] | (((long)these32.sig[3]) << 32);
954 case 1: these.sig[0] = these32.sig[0] | (((long)these32.sig[1]) << 32);
958 * Invert the set of allowed signals to get those we
961 sigdelsetmask(&these, sigmask(SIGKILL)|sigmask(SIGSTOP));
965 if (get_compat_timespec(&ts, uts))
967 if (ts.tv_nsec >= 1000000000L || ts.tv_nsec < 0
972 spin_lock_irq(¤t->sighand->siglock);
973 sig = dequeue_signal(current, &these, &info);
975 /* None ready -- temporarily unblock those we're interested
976 in so that we'll be awakened when they arrive. */
977 current->real_blocked = current->blocked;
978 sigandsets(¤t->blocked, ¤t->blocked, &these);
980 spin_unlock_irq(¤t->sighand->siglock);
982 timeout = MAX_SCHEDULE_TIMEOUT;
984 timeout = (timespec_to_jiffies(&ts)
985 + (ts.tv_sec || ts.tv_nsec));
987 current->state = TASK_INTERRUPTIBLE;
988 timeout = schedule_timeout(timeout);
990 spin_lock_irq(¤t->sighand->siglock);
991 sig = dequeue_signal(current, &these, &info);
992 current->blocked = current->real_blocked;
993 siginitset(¤t->real_blocked, 0);
996 spin_unlock_irq(¤t->sighand->siglock);
1001 if (copy_siginfo_to_user32(uinfo, &info))
1014 sys32_rt_sigqueueinfo(int pid, int sig, siginfo_t32 __user *uinfo)
1018 mm_segment_t old_fs = get_fs();
1020 if (copy_from_user (&info, uinfo, 3*sizeof(int)) ||
1021 copy_from_user (info._sifields._pad, uinfo->_sifields._pad, SI_PAD_SIZE))
1024 ret = sys_rt_sigqueueinfo(pid, sig, &info);
1029 extern void check_pending(int signum);
1032 * count32() counts the number of arguments/envelopes
1034 static int count32(u32 * argv)
1042 error = get_user(p,argv);
1043 if (error) return error;
1052 * 'copy_string32()' copies argument/envelope strings from user
1053 * memory to free pages in kernel mem. These are in a format ready
1054 * to be put directly into the top of new user memory.
1056 static int copy_strings32(int argc, u32 * argv, struct linux_binprm *bprm)
1058 while (argc-- > 0) {
1063 if (get_user(str, argv + argc) ||
1065 !(len = strnlen_user((char *)A(str), bprm->p)))
1077 int offset, bytes_to_copy, new, err;
1079 offset = pos % PAGE_SIZE;
1080 page = bprm->page[pos / PAGE_SIZE];
1083 page = alloc_page(GFP_USER);
1084 bprm->page[pos / PAGE_SIZE] = page;
1089 kaddr = (char *)kmap(page);
1092 memset(kaddr, 0, offset);
1093 bytes_to_copy = PAGE_SIZE - offset;
1094 if (bytes_to_copy > len) {
1095 bytes_to_copy = len;
1097 memset(kaddr+offset+len, 0,
1098 PAGE_SIZE-offset-len);
1101 err = copy_from_user(kaddr + offset, (char *)A(str),
1108 pos += bytes_to_copy;
1109 str += bytes_to_copy;
1110 len -= bytes_to_copy;
1117 * sys32_execve() executes a new program.
1120 do_execve32(char * filename, u32 * argv, u32 * envp, struct pt_regs * regs)
1122 struct linux_binprm bprm;
1127 sched_balance_exec();
1129 file = open_exec(filename);
1131 retval = PTR_ERR(file);
1135 bprm.p = PAGE_SIZE*MAX_ARG_PAGES-sizeof(void *);
1136 memset(bprm.page, 0, MAX_ARG_PAGES * sizeof(bprm.page[0]));
1139 bprm.filename = filename;
1140 bprm.interp = filename;
1144 bprm.mm = mm_alloc();
1149 /* init_new_context is empty for s390x. */
1151 bprm.argc = count32(argv);
1152 if ((retval = bprm.argc) < 0)
1155 bprm.envc = count32(envp);
1156 if ((retval = bprm.envc) < 0)
1159 retval = security_bprm_alloc(&bprm);
1163 retval = prepare_binprm(&bprm);
1167 retval = copy_strings_kernel(1, &bprm.filename, &bprm);
1172 retval = copy_strings32(bprm.envc, envp, &bprm);
1176 retval = copy_strings32(bprm.argc, argv, &bprm);
1180 retval = search_binary_handler(&bprm, regs);
1182 /* execve success */
1183 security_bprm_free(&bprm);
1188 /* Something went wrong, return the inode and free the argument pages*/
1189 for (i=0 ; i<MAX_ARG_PAGES ; i++) {
1190 struct page * page = bprm.page[i];
1196 security_bprm_free(&bprm);
1204 allow_write_access(bprm.file);
1212 * sys32_execve() executes a new program after the asm stub has set
1213 * things up for us. This should basically do what I want it to.
1216 sys32_execve(struct pt_regs regs)
1221 filename = getname((char *)A(regs.orig_gpr2));
1222 error = PTR_ERR(filename);
1223 if (IS_ERR(filename))
1225 error = do_execve32(filename, (u32 *)A(regs.gprs[3]), (u32 *)A(regs.gprs[4]), ®s);
1228 current->ptrace &= ~PT_DTRACE;
1229 current->thread.fp_regs.fpc=0;
1230 __asm__ __volatile__
1241 #ifdef CONFIG_MODULES
1244 sys32_init_module(void __user *umod, unsigned long len,
1245 const char __user *uargs)
1247 return sys_init_module(umod, len, uargs);
1251 sys32_delete_module(const char __user *name_user, unsigned int flags)
1253 return sys_delete_module(name_user, flags);
1256 #else /* CONFIG_MODULES */
1259 sys32_init_module(void __user *umod, unsigned long len,
1260 const char __user *uargs)
1266 sys32_delete_module(const char __user *name_user, unsigned int flags)
1271 #endif /* CONFIG_MODULES */
1273 /* Stuff for NFS server syscalls... */
1274 struct nfsctl_svc32 {
1279 struct nfsctl_client32 {
1280 s8 cl32_ident[NFSCLNT_IDMAX+1];
1282 struct in_addr cl32_addrlist[NFSCLNT_ADDRMAX];
1285 u8 cl32_fhkey[NFSCLNT_KEYMAX];
1288 struct nfsctl_export32 {
1289 s8 ex32_client[NFSCLNT_IDMAX+1];
1290 s8 ex32_path[NFS_MAXPATHLEN+1];
1291 compat_dev_t ex32_dev;
1292 compat_ino_t ex32_ino;
1294 compat_uid_t ex32_anon_uid;
1295 compat_gid_t ex32_anon_gid;
1298 struct nfsctl_fdparm32 {
1299 struct sockaddr gd32_addr;
1300 s8 gd32_path[NFS_MAXPATHLEN+1];
1304 struct nfsctl_fsparm32 {
1305 struct sockaddr gd32_addr;
1306 s8 gd32_path[NFS_MAXPATHLEN+1];
1310 struct nfsctl_arg32 {
1311 s32 ca32_version; /* safeguard */
1313 struct nfsctl_svc32 u32_svc;
1314 struct nfsctl_client32 u32_client;
1315 struct nfsctl_export32 u32_export;
1316 struct nfsctl_fdparm32 u32_getfd;
1317 struct nfsctl_fsparm32 u32_getfs;
1319 #define ca32_svc u.u32_svc
1320 #define ca32_client u.u32_client
1321 #define ca32_export u.u32_export
1322 #define ca32_getfd u.u32_getfd
1323 #define ca32_getfs u.u32_getfs
1324 #define ca32_authd u.u32_authd
1327 union nfsctl_res32 {
1328 __u8 cr32_getfh[NFS_FHSIZE];
1329 struct knfsd_fh cr32_getfs;
1332 static int nfs_svc32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
1336 err = __get_user(karg->ca_version, &arg32->ca32_version);
1337 err |= __get_user(karg->ca_svc.svc_port, &arg32->ca32_svc.svc32_port);
1338 err |= __get_user(karg->ca_svc.svc_nthreads, &arg32->ca32_svc.svc32_nthreads);
1342 static int nfs_clnt32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
1346 err = __get_user(karg->ca_version, &arg32->ca32_version);
1347 err |= copy_from_user(&karg->ca_client.cl_ident[0],
1348 &arg32->ca32_client.cl32_ident[0],
1350 err |= __get_user(karg->ca_client.cl_naddr, &arg32->ca32_client.cl32_naddr);
1351 err |= copy_from_user(&karg->ca_client.cl_addrlist[0],
1352 &arg32->ca32_client.cl32_addrlist[0],
1353 (sizeof(struct in_addr) * NFSCLNT_ADDRMAX));
1354 err |= __get_user(karg->ca_client.cl_fhkeytype,
1355 &arg32->ca32_client.cl32_fhkeytype);
1356 err |= __get_user(karg->ca_client.cl_fhkeylen,
1357 &arg32->ca32_client.cl32_fhkeylen);
1358 err |= copy_from_user(&karg->ca_client.cl_fhkey[0],
1359 &arg32->ca32_client.cl32_fhkey[0],
1364 static int nfs_exp32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
1368 err = __get_user(karg->ca_version, &arg32->ca32_version);
1369 err |= copy_from_user(&karg->ca_export.ex_client[0],
1370 &arg32->ca32_export.ex32_client[0],
1372 err |= copy_from_user(&karg->ca_export.ex_path[0],
1373 &arg32->ca32_export.ex32_path[0],
1375 err |= __get_user(karg->ca_export.ex_dev,
1376 &arg32->ca32_export.ex32_dev);
1377 err |= __get_user(karg->ca_export.ex_ino,
1378 &arg32->ca32_export.ex32_ino);
1379 err |= __get_user(karg->ca_export.ex_flags,
1380 &arg32->ca32_export.ex32_flags);
1381 err |= __get_user(karg->ca_export.ex_anon_uid,
1382 &arg32->ca32_export.ex32_anon_uid);
1383 err |= __get_user(karg->ca_export.ex_anon_gid,
1384 &arg32->ca32_export.ex32_anon_gid);
1385 karg->ca_export.ex_anon_uid = high2lowuid(karg->ca_export.ex_anon_uid);
1386 karg->ca_export.ex_anon_gid = high2lowgid(karg->ca_export.ex_anon_gid);
1390 static int nfs_getfd32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
1394 err = __get_user(karg->ca_version, &arg32->ca32_version);
1395 err |= copy_from_user(&karg->ca_getfd.gd_addr,
1396 &arg32->ca32_getfd.gd32_addr,
1397 (sizeof(struct sockaddr)));
1398 err |= copy_from_user(&karg->ca_getfd.gd_path,
1399 &arg32->ca32_getfd.gd32_path,
1400 (NFS_MAXPATHLEN+1));
1401 err |= __get_user(karg->ca_getfd.gd_version,
1402 &arg32->ca32_getfd.gd32_version);
1406 static int nfs_getfs32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
1410 err = __get_user(karg->ca_version, &arg32->ca32_version);
1411 err |= copy_from_user(&karg->ca_getfs.gd_addr,
1412 &arg32->ca32_getfs.gd32_addr,
1413 (sizeof(struct sockaddr)));
1414 err |= copy_from_user(&karg->ca_getfs.gd_path,
1415 &arg32->ca32_getfs.gd32_path,
1416 (NFS_MAXPATHLEN+1));
1417 err |= __get_user(karg->ca_getfs.gd_maxlen,
1418 &arg32->ca32_getfs.gd32_maxlen);
1422 /* This really doesn't need translations, we are only passing
1423 * back a union which contains opaque nfs file handle data.
1425 static int nfs_getfh32_res_trans(union nfsctl_res *kres, union nfsctl_res32 *res32)
1427 return copy_to_user(res32, kres, sizeof(*res32)) ? -EFAULT : 0;
1430 long asmlinkage sys32_nfsservctl(int cmd, struct nfsctl_arg32 *arg32, union nfsctl_res32 *res32)
1432 struct nfsctl_arg *karg = NULL;
1433 union nfsctl_res *kres = NULL;
1437 karg = kmalloc(sizeof(*karg), GFP_USER);
1441 kres = kmalloc(sizeof(*kres), GFP_USER);
1449 err = nfs_svc32_trans(karg, arg32);
1451 case NFSCTL_ADDCLIENT:
1452 err = nfs_clnt32_trans(karg, arg32);
1454 case NFSCTL_DELCLIENT:
1455 err = nfs_clnt32_trans(karg, arg32);
1458 case NFSCTL_UNEXPORT:
1459 err = nfs_exp32_trans(karg, arg32);
1462 err = nfs_getfd32_trans(karg, arg32);
1465 err = nfs_getfs32_trans(karg, arg32);
1475 err = sys_nfsservctl(cmd, karg, kres);
1481 if((cmd == NFSCTL_GETFD) ||
1482 (cmd == NFSCTL_GETFS))
1483 err = nfs_getfh32_res_trans(kres, res32);
1493 /* Translations due to time_t size differences. Which affects all
1494 sorts of things, like timeval and itimerval. */
1496 extern struct timezone sys_tz;
1498 asmlinkage long sys32_gettimeofday(struct compat_timeval *tv, struct timezone *tz)
1502 do_gettimeofday(&ktv);
1503 if (put_tv32(tv, &ktv))
1507 if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
1513 static inline long get_ts32(struct timespec *o, struct compat_timeval *i)
1517 if (!access_ok(VERIFY_READ, i, sizeof(*i)))
1519 if (__get_user(o->tv_sec, &i->tv_sec))
1521 if (__get_user(usec, &i->tv_usec))
1523 o->tv_nsec = usec * 1000;
1527 asmlinkage long sys32_settimeofday(struct compat_timeval *tv, struct timezone *tz)
1529 struct timespec kts;
1530 struct timezone ktz;
1533 if (get_ts32(&kts, tv))
1537 if (copy_from_user(&ktz, tz, sizeof(ktz)))
1541 return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
1544 /* These are here just in case some old sparc32 binary calls it. */
1545 asmlinkage long sys32_pause(void)
1547 current->state = TASK_INTERRUPTIBLE;
1549 return -ERESTARTNOHAND;
1552 asmlinkage long sys32_pread64(unsigned int fd, char *ubuf,
1553 size_t count, u32 poshi, u32 poslo)
1555 if ((compat_ssize_t) count < 0)
1557 return sys_pread64(fd, ubuf, count, ((loff_t)AA(poshi) << 32) | AA(poslo));
1560 asmlinkage long sys32_pwrite64(unsigned int fd, const char *ubuf,
1561 size_t count, u32 poshi, u32 poslo)
1563 if ((compat_ssize_t) count < 0)
1565 return sys_pwrite64(fd, ubuf, count, ((loff_t)AA(poshi) << 32) | AA(poslo));
1568 asmlinkage compat_ssize_t sys32_readahead(int fd, u32 offhi, u32 offlo, s32 count)
1570 return sys_readahead(fd, ((loff_t)AA(offhi) << 32) | AA(offlo), count);
1573 asmlinkage long sys32_sendfile(int out_fd, int in_fd, compat_off_t *offset, size_t count)
1575 mm_segment_t old_fs = get_fs();
1579 if (offset && get_user(of, offset))
1583 ret = sys_sendfile(out_fd, in_fd, offset ? &of : NULL, count);
1586 if (!ret && offset && put_user(of, offset))
1592 asmlinkage long sys32_sendfile64(int out_fd, int in_fd,
1593 compat_loff_t *offset, s32 count)
1595 mm_segment_t old_fs = get_fs();
1599 if (offset && get_user(lof, offset))
1603 ret = sys_sendfile64(out_fd, in_fd, offset ? &lof : NULL, count);
1606 if (offset && put_user(lof, offset))
1612 /* Handle adjtimex compatibility. */
1616 s32 offset, freq, maxerror, esterror;
1617 s32 status, constant, precision, tolerance;
1618 struct compat_timeval time;
1620 s32 ppsfreq, jitter, shift, stabil;
1621 s32 jitcnt, calcnt, errcnt, stbcnt;
1622 s32 :32; s32 :32; s32 :32; s32 :32;
1623 s32 :32; s32 :32; s32 :32; s32 :32;
1624 s32 :32; s32 :32; s32 :32; s32 :32;
1627 extern int do_adjtimex(struct timex *);
1629 asmlinkage long sys32_adjtimex(struct timex32 *utp)
1634 memset(&txc, 0, sizeof(struct timex));
1636 if(get_user(txc.modes, &utp->modes) ||
1637 __get_user(txc.offset, &utp->offset) ||
1638 __get_user(txc.freq, &utp->freq) ||
1639 __get_user(txc.maxerror, &utp->maxerror) ||
1640 __get_user(txc.esterror, &utp->esterror) ||
1641 __get_user(txc.status, &utp->status) ||
1642 __get_user(txc.constant, &utp->constant) ||
1643 __get_user(txc.precision, &utp->precision) ||
1644 __get_user(txc.tolerance, &utp->tolerance) ||
1645 __get_user(txc.time.tv_sec, &utp->time.tv_sec) ||
1646 __get_user(txc.time.tv_usec, &utp->time.tv_usec) ||
1647 __get_user(txc.tick, &utp->tick) ||
1648 __get_user(txc.ppsfreq, &utp->ppsfreq) ||
1649 __get_user(txc.jitter, &utp->jitter) ||
1650 __get_user(txc.shift, &utp->shift) ||
1651 __get_user(txc.stabil, &utp->stabil) ||
1652 __get_user(txc.jitcnt, &utp->jitcnt) ||
1653 __get_user(txc.calcnt, &utp->calcnt) ||
1654 __get_user(txc.errcnt, &utp->errcnt) ||
1655 __get_user(txc.stbcnt, &utp->stbcnt))
1658 ret = do_adjtimex(&txc);
1660 if(put_user(txc.modes, &utp->modes) ||
1661 __put_user(txc.offset, &utp->offset) ||
1662 __put_user(txc.freq, &utp->freq) ||
1663 __put_user(txc.maxerror, &utp->maxerror) ||
1664 __put_user(txc.esterror, &utp->esterror) ||
1665 __put_user(txc.status, &utp->status) ||
1666 __put_user(txc.constant, &utp->constant) ||
1667 __put_user(txc.precision, &utp->precision) ||
1668 __put_user(txc.tolerance, &utp->tolerance) ||
1669 __put_user(txc.time.tv_sec, &utp->time.tv_sec) ||
1670 __put_user(txc.time.tv_usec, &utp->time.tv_usec) ||
1671 __put_user(txc.tick, &utp->tick) ||
1672 __put_user(txc.ppsfreq, &utp->ppsfreq) ||
1673 __put_user(txc.jitter, &utp->jitter) ||
1674 __put_user(txc.shift, &utp->shift) ||
1675 __put_user(txc.stabil, &utp->stabil) ||
1676 __put_user(txc.jitcnt, &utp->jitcnt) ||
1677 __put_user(txc.calcnt, &utp->calcnt) ||
1678 __put_user(txc.errcnt, &utp->errcnt) ||
1679 __put_user(txc.stbcnt, &utp->stbcnt))
1685 struct __sysctl_args32 {
1695 asmlinkage long sys32_sysctl(struct __sysctl_args32 *args)
1697 struct __sysctl_args32 tmp;
1699 size_t oldlen, *oldlenp = NULL;
1700 unsigned long addr = (((long)&args->__unused[0]) + 7) & ~7;
1702 if (copy_from_user(&tmp, args, sizeof(tmp)))
1705 if (tmp.oldval && tmp.oldlenp) {
1706 /* Duh, this is ugly and might not work if sysctl_args
1707 is in read-only memory, but do_sysctl does indirectly
1708 a lot of uaccess in both directions and we'd have to
1709 basically copy the whole sysctl.c here, and
1710 glibc's __sysctl uses rw memory for the structure
1712 if (get_user(oldlen, (u32 *)A(tmp.oldlenp)) ||
1713 put_user(oldlen, (size_t *)addr))
1715 oldlenp = (size_t *)addr;
1719 error = do_sysctl((int *)A(tmp.name), tmp.nlen, (void *)A(tmp.oldval),
1720 oldlenp, (void *)A(tmp.newval), tmp.newlen);
1724 if (get_user(oldlen, (size_t *)addr) ||
1725 put_user(oldlen, (u32 *)A(tmp.oldlenp)))
1728 copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused));
1733 struct stat64_emu31 {
1734 unsigned long long st_dev;
1735 unsigned int __pad1;
1736 #define STAT64_HAS_BROKEN_ST_INO 1
1738 unsigned int st_mode;
1739 unsigned int st_nlink;
1742 unsigned long long st_rdev;
1743 unsigned int __pad3;
1746 unsigned char __pad4[4];
1747 u32 __pad5; /* future possible st_blocks high bits */
1748 u32 st_blocks; /* Number 512-byte blocks allocated. */
1754 u32 __pad8; /* will be high 32 bits of ctime someday */
1755 unsigned long st_ino;
1758 static int cp_stat64(struct stat64_emu31 *ubuf, struct kstat *stat)
1760 struct stat64_emu31 tmp;
1762 memset(&tmp, 0, sizeof(tmp));
1764 tmp.st_dev = huge_encode_dev(stat->dev);
1765 tmp.st_ino = stat->ino;
1766 tmp.__st_ino = (u32)stat->ino;
1767 tmp.st_mode = stat->mode;
1768 tmp.st_nlink = (unsigned int)stat->nlink;
1769 tmp.st_uid = stat->uid;
1770 tmp.st_gid = stat->gid;
1771 tmp.st_rdev = huge_encode_dev(stat->rdev);
1772 tmp.st_size = stat->size;
1773 tmp.st_blksize = (u32)stat->blksize;
1774 tmp.st_blocks = (u32)stat->blocks;
1775 tmp.st_atime = (u32)stat->atime.tv_sec;
1776 tmp.st_mtime = (u32)stat->mtime.tv_sec;
1777 tmp.st_ctime = (u32)stat->ctime.tv_sec;
1779 return copy_to_user(ubuf,&tmp,sizeof(tmp)) ? -EFAULT : 0;
1782 asmlinkage long sys32_stat64(char * filename, struct stat64_emu31 * statbuf)
1785 int ret = vfs_stat(filename, &stat);
1787 ret = cp_stat64(statbuf, &stat);
1791 asmlinkage long sys32_lstat64(char * filename, struct stat64_emu31 * statbuf)
1794 int ret = vfs_lstat(filename, &stat);
1796 ret = cp_stat64(statbuf, &stat);
1800 asmlinkage long sys32_fstat64(unsigned long fd, struct stat64_emu31 * statbuf)
1803 int ret = vfs_fstat(fd, &stat);
1805 ret = cp_stat64(statbuf, &stat);
1810 * Linux/i386 didn't use to be able to handle more than
1811 * 4 system call parameters, so these system calls used a memory
1812 * block for parameter passing..
1815 struct mmap_arg_struct_emu31 {
1824 /* common code for old and new mmaps */
1825 static inline long do_mmap2(
1826 unsigned long addr, unsigned long len,
1827 unsigned long prot, unsigned long flags,
1828 unsigned long fd, unsigned long pgoff)
1830 struct file * file = NULL;
1831 unsigned long error = -EBADF;
1833 flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
1834 if (!(flags & MAP_ANONYMOUS)) {
1840 down_write(¤t->mm->mmap_sem);
1841 error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
1842 if (!IS_ERR((void *) error) && error + len >= 0x80000000ULL) {
1843 /* Result is out of bounds. */
1844 do_munmap(current->mm, addr, len);
1847 up_write(¤t->mm->mmap_sem);
1856 asmlinkage unsigned long
1857 old32_mmap(struct mmap_arg_struct_emu31 *arg)
1859 struct mmap_arg_struct_emu31 a;
1860 int error = -EFAULT;
1862 if (copy_from_user(&a, arg, sizeof(a)))
1866 if (a.offset & ~PAGE_MASK)
1869 error = do_mmap2(a.addr, a.len, a.prot, a.flags, a.fd, a.offset >> PAGE_SHIFT);
1875 sys32_mmap2(struct mmap_arg_struct_emu31 *arg)
1877 struct mmap_arg_struct_emu31 a;
1878 int error = -EFAULT;
1880 if (copy_from_user(&a, arg, sizeof(a)))
1882 error = do_mmap2(a.addr, a.len, a.prot, a.flags, a.fd, a.offset);
1887 asmlinkage long sys32_read(unsigned int fd, char * buf, size_t count)
1889 if ((compat_ssize_t) count < 0)
1892 return sys_read(fd, buf, count);
1895 asmlinkage long sys32_write(unsigned int fd, char * buf, size_t count)
1897 if ((compat_ssize_t) count < 0)
1900 return sys_write(fd, buf, count);
1903 asmlinkage long sys32_clone(struct pt_regs regs)
1905 unsigned long clone_flags;
1906 unsigned long newsp;
1907 int *parent_tidptr, *child_tidptr;
1909 clone_flags = regs.gprs[3] & 0xffffffffUL;
1910 newsp = regs.orig_gpr2 & 0x7fffffffUL;
1911 parent_tidptr = (int *) (regs.gprs[4] & 0x7fffffffUL);
1912 child_tidptr = (int *) (regs.gprs[5] & 0x7fffffffUL);
1914 newsp = regs.gprs[15];
1915 return do_fork(clone_flags & ~CLONE_IDLETASK, newsp, ®s, 0,
1916 parent_tidptr, child_tidptr);
1920 * Wrapper function for sys_timer_create.
1922 extern asmlinkage long
1923 sys_timer_create(clockid_t, struct sigevent *, timer_t *);
1926 sys32_timer_create(clockid_t which_clock, struct sigevent32 *se32,
1931 mm_segment_t old_fs;
1935 return sys_timer_create(which_clock, NULL, timer_id);
1937 /* XXX: converting se32 to se is filthy because of the
1938 * two union members. For now it is ok, because the pointers
1939 * are not touched in kernel.
1941 memset(&se, 0, sizeof(se));
1942 if (get_user(se.sigev_value.sival_int, &se32->sigev_value.sival_int) ||
1943 get_user(se.sigev_signo, &se32->sigev_signo) ||
1944 get_user(se.sigev_notify, &se32->sigev_notify) ||
1945 copy_from_user(&se._sigev_un._pad, &se32->_sigev_un._pad,
1946 sizeof(se._sigev_un._pad)))
1951 ret = sys_timer_create(which_clock, &se, &ktimer_id);
1955 ret = put_user (ktimer_id, timer_id);