2 * sys_ia32.c: Conversion between 32bit and 64bit native syscalls. Based on
5 * Copyright (C) 2000 VA Linux Co
6 * Copyright (C) 2000 Don Dugger <n0ano@valinux.com>
7 * Copyright (C) 1999 Arun Sharma <arun.sharma@intel.com>
8 * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
9 * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
10 * Copyright (C) 2000 Hewlett-Packard Co.
11 * Copyright (C) 2000 David Mosberger-Tang <davidm@hpl.hp.com>
12 * Copyright (C) 2000,2001,2002 Andi Kleen, SuSE Labs (x86-64 port)
14 * These routines maintain argument size conversion between 32bit and 64bit
15 * environment. In 2.5 most of this should be moved to a generic directory.
17 * This file assumes that there is a hole at the end of user address space.
19 * Some of the functions are LE specific currently. These are hopefully all marked.
20 * This should be fixed.
23 #include <linux/kernel.h>
24 #include <linux/sched.h>
26 #include <linux/file.h>
27 #include <linux/signal.h>
28 #include <linux/syscalls.h>
29 #include <linux/resource.h>
30 #include <linux/times.h>
31 #include <linux/utsname.h>
32 #include <linux/smp.h>
33 #include <linux/smp_lock.h>
34 #include <linux/sem.h>
35 #include <linux/msg.h>
37 #include <linux/shm.h>
38 #include <linux/slab.h>
39 #include <linux/uio.h>
40 #include <linux/nfs_fs.h>
41 #include <linux/quota.h>
42 #include <linux/module.h>
43 #include <linux/sunrpc/svc.h>
44 #include <linux/nfsd/nfsd.h>
45 #include <linux/nfsd/cache.h>
46 #include <linux/nfsd/xdr.h>
47 #include <linux/nfsd/syscall.h>
48 #include <linux/poll.h>
49 #include <linux/personality.h>
50 #include <linux/stat.h>
51 #include <linux/ipc.h>
52 #include <linux/rwsem.h>
53 #include <linux/binfmts.h>
54 #include <linux/init.h>
55 #include <linux/aio_abi.h>
56 #include <linux/aio.h>
57 #include <linux/compat.h>
58 #include <linux/vfs.h>
59 #include <linux/ptrace.h>
60 #include <linux/highuid.h>
61 #include <linux/vmalloc.h>
62 #include <linux/fsnotify.h>
64 #include <asm/types.h>
65 #include <asm/uaccess.h>
66 #include <asm/semaphore.h>
67 #include <asm/atomic.h>
74 #define AA(__x) ((unsigned long)(__x))
76 int cp_compat_stat(struct kstat *kbuf, struct compat_stat __user *ubuf)
78 typeof(ubuf->st_uid) uid = 0;
79 typeof(ubuf->st_gid) gid = 0;
80 SET_UID(uid, kbuf->uid);
81 SET_GID(gid, kbuf->gid);
82 if (!old_valid_dev(kbuf->dev) || !old_valid_dev(kbuf->rdev))
84 if (kbuf->size >= 0x7fffffff)
86 if (!access_ok(VERIFY_WRITE, ubuf, sizeof(struct compat_stat)) ||
87 __put_user (old_encode_dev(kbuf->dev), &ubuf->st_dev) ||
88 __put_user (kbuf->ino, &ubuf->st_ino) ||
89 __put_user (kbuf->mode, &ubuf->st_mode) ||
90 __put_user (kbuf->nlink, &ubuf->st_nlink) ||
91 __put_user (uid, &ubuf->st_uid) ||
92 __put_user (gid, &ubuf->st_gid) ||
93 __put_user (old_encode_dev(kbuf->rdev), &ubuf->st_rdev) ||
94 __put_user (kbuf->size, &ubuf->st_size) ||
95 __put_user (kbuf->atime.tv_sec, &ubuf->st_atime) ||
96 __put_user (kbuf->atime.tv_nsec, &ubuf->st_atime_nsec) ||
97 __put_user (kbuf->mtime.tv_sec, &ubuf->st_mtime) ||
98 __put_user (kbuf->mtime.tv_nsec, &ubuf->st_mtime_nsec) ||
99 __put_user (kbuf->ctime.tv_sec, &ubuf->st_ctime) ||
100 __put_user (kbuf->ctime.tv_nsec, &ubuf->st_ctime_nsec) ||
101 __put_user (kbuf->blksize, &ubuf->st_blksize) ||
102 __put_user (kbuf->blocks, &ubuf->st_blocks))
108 sys32_truncate64(char __user * filename, unsigned long offset_low, unsigned long offset_high)
110 return sys_truncate(filename, ((loff_t) offset_high << 32) | offset_low);
114 sys32_ftruncate64(unsigned int fd, unsigned long offset_low, unsigned long offset_high)
116 return sys_ftruncate(fd, ((loff_t) offset_high << 32) | offset_low);
119 /* Another set for IA32/LFS -- x86_64 struct stat is different due to
120 support for 64bit inode numbers. */
123 cp_stat64(struct stat64 __user *ubuf, struct kstat *stat)
125 typeof(ubuf->st_uid) uid = 0;
126 typeof(ubuf->st_gid) gid = 0;
127 SET_UID(uid, stat->uid);
128 SET_GID(gid, stat->gid);
129 if (!access_ok(VERIFY_WRITE, ubuf, sizeof(struct stat64)) ||
130 __put_user(huge_encode_dev(stat->dev), &ubuf->st_dev) ||
131 __put_user (stat->ino, &ubuf->__st_ino) ||
132 __put_user (stat->ino, &ubuf->st_ino) ||
133 __put_user (stat->mode, &ubuf->st_mode) ||
134 __put_user (stat->nlink, &ubuf->st_nlink) ||
135 __put_user (uid, &ubuf->st_uid) ||
136 __put_user (gid, &ubuf->st_gid) ||
137 __put_user (huge_encode_dev(stat->rdev), &ubuf->st_rdev) ||
138 __put_user (stat->size, &ubuf->st_size) ||
139 __put_user (stat->atime.tv_sec, &ubuf->st_atime) ||
140 __put_user (stat->atime.tv_nsec, &ubuf->st_atime_nsec) ||
141 __put_user (stat->mtime.tv_sec, &ubuf->st_mtime) ||
142 __put_user (stat->mtime.tv_nsec, &ubuf->st_mtime_nsec) ||
143 __put_user (stat->ctime.tv_sec, &ubuf->st_ctime) ||
144 __put_user (stat->ctime.tv_nsec, &ubuf->st_ctime_nsec) ||
145 __put_user (stat->blksize, &ubuf->st_blksize) ||
146 __put_user (stat->blocks, &ubuf->st_blocks))
152 sys32_stat64(char __user * filename, struct stat64 __user *statbuf)
155 int ret = vfs_stat(filename, &stat);
157 ret = cp_stat64(statbuf, &stat);
162 sys32_lstat64(char __user * filename, struct stat64 __user *statbuf)
165 int ret = vfs_lstat(filename, &stat);
167 ret = cp_stat64(statbuf, &stat);
172 sys32_fstat64(unsigned int fd, struct stat64 __user *statbuf)
175 int ret = vfs_fstat(fd, &stat);
177 ret = cp_stat64(statbuf, &stat);
182 sys32_fstatat(unsigned int dfd, char __user *filename,
183 struct stat64 __user* statbuf, int flag)
188 if ((flag & ~AT_SYMLINK_NOFOLLOW) != 0)
191 if (flag & AT_SYMLINK_NOFOLLOW)
192 error = vfs_lstat_fd(dfd, filename, &stat);
194 error = vfs_stat_fd(dfd, filename, &stat);
197 error = cp_stat64(statbuf, &stat);
204 * Linux/i386 didn't use to be able to handle more than
205 * 4 system call parameters, so these system calls used a memory
206 * block for parameter passing..
209 struct mmap_arg_struct {
219 sys32_mmap(struct mmap_arg_struct __user *arg)
221 struct mmap_arg_struct a;
222 struct file *file = NULL;
223 unsigned long retval;
224 struct mm_struct *mm ;
226 if (copy_from_user(&a, arg, sizeof(a)))
229 if (a.offset & ~PAGE_MASK)
232 if (!(a.flags & MAP_ANONYMOUS)) {
239 down_write(&mm->mmap_sem);
240 retval = do_mmap_pgoff(file, a.addr, a.len, a.prot, a.flags, a.offset>>PAGE_SHIFT);
244 up_write(&mm->mmap_sem);
250 sys32_mprotect(unsigned long start, size_t len, unsigned long prot)
252 return sys_mprotect(start,len,prot);
256 sys32_pipe(int __user *fd)
261 retval = do_pipe(fds);
264 if (copy_to_user(fd, fds, sizeof(fds)))
271 sys32_rt_sigaction(int sig, struct sigaction32 __user *act,
272 struct sigaction32 __user *oact, unsigned int sigsetsize)
274 struct k_sigaction new_ka, old_ka;
276 compat_sigset_t set32;
278 /* XXX: Don't preclude handling different sized sigset_t's. */
279 if (sigsetsize != sizeof(compat_sigset_t))
283 compat_uptr_t handler, restorer;
285 if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
286 __get_user(handler, &act->sa_handler) ||
287 __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
288 __get_user(restorer, &act->sa_restorer)||
289 __copy_from_user(&set32, &act->sa_mask, sizeof(compat_sigset_t)))
291 new_ka.sa.sa_handler = compat_ptr(handler);
292 new_ka.sa.sa_restorer = compat_ptr(restorer);
293 /* FIXME: here we rely on _COMPAT_NSIG_WORS to be >= than _NSIG_WORDS << 1 */
294 switch (_NSIG_WORDS) {
295 case 4: new_ka.sa.sa_mask.sig[3] = set32.sig[6]
296 | (((long)set32.sig[7]) << 32);
297 case 3: new_ka.sa.sa_mask.sig[2] = set32.sig[4]
298 | (((long)set32.sig[5]) << 32);
299 case 2: new_ka.sa.sa_mask.sig[1] = set32.sig[2]
300 | (((long)set32.sig[3]) << 32);
301 case 1: new_ka.sa.sa_mask.sig[0] = set32.sig[0]
302 | (((long)set32.sig[1]) << 32);
306 ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
309 /* FIXME: here we rely on _COMPAT_NSIG_WORS to be >= than _NSIG_WORDS << 1 */
310 switch (_NSIG_WORDS) {
312 set32.sig[7] = (old_ka.sa.sa_mask.sig[3] >> 32);
313 set32.sig[6] = old_ka.sa.sa_mask.sig[3];
315 set32.sig[5] = (old_ka.sa.sa_mask.sig[2] >> 32);
316 set32.sig[4] = old_ka.sa.sa_mask.sig[2];
318 set32.sig[3] = (old_ka.sa.sa_mask.sig[1] >> 32);
319 set32.sig[2] = old_ka.sa.sa_mask.sig[1];
321 set32.sig[1] = (old_ka.sa.sa_mask.sig[0] >> 32);
322 set32.sig[0] = old_ka.sa.sa_mask.sig[0];
324 if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
325 __put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler) ||
326 __put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer) ||
327 __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
328 __copy_to_user(&oact->sa_mask, &set32, sizeof(compat_sigset_t)))
336 sys32_sigaction (int sig, struct old_sigaction32 __user *act, struct old_sigaction32 __user *oact)
338 struct k_sigaction new_ka, old_ka;
342 compat_old_sigset_t mask;
343 compat_uptr_t handler, restorer;
345 if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
346 __get_user(handler, &act->sa_handler) ||
347 __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
348 __get_user(restorer, &act->sa_restorer) ||
349 __get_user(mask, &act->sa_mask))
352 new_ka.sa.sa_handler = compat_ptr(handler);
353 new_ka.sa.sa_restorer = compat_ptr(restorer);
355 siginitset(&new_ka.sa.sa_mask, mask);
358 ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
361 if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
362 __put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler) ||
363 __put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer) ||
364 __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
365 __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
373 sys32_rt_sigprocmask(int how, compat_sigset_t __user *set,
374 compat_sigset_t __user *oset, unsigned int sigsetsize)
379 mm_segment_t old_fs = get_fs();
382 if (copy_from_user (&s32, set, sizeof(compat_sigset_t)))
384 switch (_NSIG_WORDS) {
385 case 4: s.sig[3] = s32.sig[6] | (((long)s32.sig[7]) << 32);
386 case 3: s.sig[2] = s32.sig[4] | (((long)s32.sig[5]) << 32);
387 case 2: s.sig[1] = s32.sig[2] | (((long)s32.sig[3]) << 32);
388 case 1: s.sig[0] = s32.sig[0] | (((long)s32.sig[1]) << 32);
392 ret = sys_rt_sigprocmask(how, set ? &s : NULL, oset ? &s : NULL,
397 switch (_NSIG_WORDS) {
398 case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
399 case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
400 case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
401 case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
403 if (copy_to_user (oset, &s32, sizeof(compat_sigset_t)))
410 get_tv32(struct timeval *o, struct compat_timeval __user *i)
413 if (access_ok(VERIFY_READ, i, sizeof(*i))) {
414 err = __get_user(o->tv_sec, &i->tv_sec);
415 err |= __get_user(o->tv_usec, &i->tv_usec);
421 put_tv32(struct compat_timeval __user *o, struct timeval *i)
424 if (access_ok(VERIFY_WRITE, o, sizeof(*o))) {
425 err = __put_user(i->tv_sec, &o->tv_sec);
426 err |= __put_user(i->tv_usec, &o->tv_usec);
431 extern unsigned int alarm_setitimer(unsigned int seconds);
434 sys32_alarm(unsigned int seconds)
436 return alarm_setitimer(seconds);
439 /* Translations due to time_t size differences. Which affects all
440 sorts of things, like timeval and itimerval. */
442 extern struct timezone sys_tz;
445 sys32_gettimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
449 do_gettimeofday(&ktv);
450 if (put_tv32(tv, &ktv))
454 if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
461 sys32_settimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
468 if (get_tv32(&ktv, tv))
470 kts.tv_sec = ktv.tv_sec;
471 kts.tv_nsec = ktv.tv_usec * NSEC_PER_USEC;
474 if (copy_from_user(&ktz, tz, sizeof(ktz)))
478 return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
481 struct sel_arg_struct {
490 sys32_old_select(struct sel_arg_struct __user *arg)
492 struct sel_arg_struct a;
494 if (copy_from_user(&a, arg, sizeof(a)))
496 return compat_sys_select(a.n, compat_ptr(a.inp), compat_ptr(a.outp),
497 compat_ptr(a.exp), compat_ptr(a.tvp));
500 extern asmlinkage long
501 compat_sys_wait4(compat_pid_t pid, compat_uint_t * stat_addr, int options,
502 struct compat_rusage *ru);
505 sys32_waitpid(compat_pid_t pid, unsigned int *stat_addr, int options)
507 return compat_sys_wait4(pid, stat_addr, options, NULL);
510 /* 32-bit timeval and related flotsam. */
513 sys32_sysfs(int option, u32 arg1, u32 arg2)
515 return sys_sysfs(option, arg1, arg2);
527 unsigned short procs;
532 char _f[20-2*sizeof(u32)-sizeof(int)];
536 sys32_sysinfo(struct sysinfo32 __user *info)
540 mm_segment_t old_fs = get_fs ();
544 ret = sys_sysinfo(&s);
547 /* Check to see if any memory value is too large for 32-bit and scale
550 if ((s.totalram >> 32) || (s.totalswap >> 32)) {
551 while (s.mem_unit < PAGE_SIZE) {
555 s.totalram >>= bitcount;
556 s.freeram >>= bitcount;
557 s.sharedram >>= bitcount;
558 s.bufferram >>= bitcount;
559 s.totalswap >>= bitcount;
560 s.freeswap >>= bitcount;
561 s.totalhigh >>= bitcount;
562 s.freehigh >>= bitcount;
565 if (!access_ok(VERIFY_WRITE, info, sizeof(struct sysinfo32)) ||
566 __put_user (s.uptime, &info->uptime) ||
567 __put_user (s.loads[0], &info->loads[0]) ||
568 __put_user (s.loads[1], &info->loads[1]) ||
569 __put_user (s.loads[2], &info->loads[2]) ||
570 __put_user (s.totalram, &info->totalram) ||
571 __put_user (s.freeram, &info->freeram) ||
572 __put_user (s.sharedram, &info->sharedram) ||
573 __put_user (s.bufferram, &info->bufferram) ||
574 __put_user (s.totalswap, &info->totalswap) ||
575 __put_user (s.freeswap, &info->freeswap) ||
576 __put_user (s.procs, &info->procs) ||
577 __put_user (s.totalhigh, &info->totalhigh) ||
578 __put_user (s.freehigh, &info->freehigh) ||
579 __put_user (s.mem_unit, &info->mem_unit))
585 sys32_sched_rr_get_interval(compat_pid_t pid, struct compat_timespec __user *interval)
589 mm_segment_t old_fs = get_fs ();
592 ret = sys_sched_rr_get_interval(pid, &t);
594 if (put_compat_timespec(&t, interval))
600 sys32_rt_sigpending(compat_sigset_t __user *set, compat_size_t sigsetsize)
605 mm_segment_t old_fs = get_fs();
608 ret = sys_rt_sigpending(&s, sigsetsize);
611 switch (_NSIG_WORDS) {
612 case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
613 case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
614 case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
615 case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
617 if (copy_to_user (set, &s32, sizeof(compat_sigset_t)))
624 sys32_rt_sigqueueinfo(int pid, int sig, compat_siginfo_t __user *uinfo)
628 mm_segment_t old_fs = get_fs();
630 if (copy_siginfo_from_user32(&info, uinfo))
633 ret = sys_rt_sigqueueinfo(pid, sig, &info);
638 /* These are here just in case some old ia32 binary calls it. */
642 current->state = TASK_INTERRUPTIBLE;
644 return -ERESTARTNOHAND;
653 unsigned int oldlenp;
656 unsigned int __unused[4];
661 sys32_sysctl(struct sysctl_ia32 __user *args32)
663 struct sysctl_ia32 a32;
664 mm_segment_t old_fs = get_fs ();
665 void __user *oldvalp, *newvalp;
669 extern int do_sysctl(int *name, int nlen, void *oldval, size_t *oldlenp,
670 void *newval, size_t newlen);
673 if (copy_from_user(&a32, args32, sizeof (a32)))
677 * We need to pre-validate these because we have to disable address checking
678 * before calling do_sysctl() because of OLDLEN but we can't run the risk of the
679 * user specifying bad addresses here. Well, since we're dealing with 32 bit
680 * addresses, we KNOW that access_ok() will always succeed, so this is an
681 * expensive NOP, but so what...
683 namep = compat_ptr(a32.name);
684 oldvalp = compat_ptr(a32.oldval);
685 newvalp = compat_ptr(a32.newval);
687 if ((oldvalp && get_user(oldlen, (int __user *)compat_ptr(a32.oldlenp)))
688 || !access_ok(VERIFY_WRITE, namep, 0)
689 || !access_ok(VERIFY_WRITE, oldvalp, 0)
690 || !access_ok(VERIFY_WRITE, newvalp, 0))
695 ret = do_sysctl(namep, a32.nlen, oldvalp, &oldlen, newvalp, (size_t) a32.newlen);
699 if (oldvalp && put_user (oldlen, (int __user *)compat_ptr(a32.oldlenp)))
706 /* warning: next two assume little endian */
708 sys32_pread(unsigned int fd, char __user *ubuf, u32 count, u32 poslo, u32 poshi)
710 return sys_pread64(fd, ubuf, count,
711 ((loff_t)AA(poshi) << 32) | AA(poslo));
715 sys32_pwrite(unsigned int fd, char __user *ubuf, u32 count, u32 poslo, u32 poshi)
717 return sys_pwrite64(fd, ubuf, count,
718 ((loff_t)AA(poshi) << 32) | AA(poslo));
723 sys32_personality(unsigned long personality)
726 if (personality(current->personality) == PER_LINUX32 &&
727 personality == PER_LINUX)
728 personality = PER_LINUX32;
729 ret = sys_personality(personality);
730 if (ret == PER_LINUX32)
736 sys32_sendfile(int out_fd, int in_fd, compat_off_t __user *offset, s32 count)
738 mm_segment_t old_fs = get_fs();
742 if (offset && get_user(of, offset))
746 ret = sys_sendfile(out_fd, in_fd, offset ? &of : NULL, count);
749 if (offset && put_user(of, offset))
755 asmlinkage long sys32_mmap2(unsigned long addr, unsigned long len,
756 unsigned long prot, unsigned long flags,
757 unsigned long fd, unsigned long pgoff)
759 struct mm_struct *mm = current->mm;
761 struct file * file = NULL;
763 flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
764 if (!(flags & MAP_ANONYMOUS)) {
770 down_write(&mm->mmap_sem);
771 error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
772 up_write(&mm->mmap_sem);
779 asmlinkage long sys32_olduname(struct oldold_utsname __user * name)
785 if (!access_ok(VERIFY_WRITE,name,sizeof(struct oldold_utsname)))
790 error = __copy_to_user(&name->sysname,&system_utsname.sysname,__OLD_UTS_LEN);
791 __put_user(0,name->sysname+__OLD_UTS_LEN);
792 __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN);
793 __put_user(0,name->nodename+__OLD_UTS_LEN);
794 __copy_to_user(&name->release,&system_utsname.release,__OLD_UTS_LEN);
795 __put_user(0,name->release+__OLD_UTS_LEN);
796 __copy_to_user(&name->version,&system_utsname.version,__OLD_UTS_LEN);
797 __put_user(0,name->version+__OLD_UTS_LEN);
799 char *arch = "x86_64";
800 if (personality(current->personality) == PER_LINUX32)
803 __copy_to_user(&name->machine,arch,strlen(arch)+1);
808 error = error ? -EFAULT : 0;
813 long sys32_uname(struct old_utsname __user * name)
819 err=copy_to_user(name, &system_utsname, sizeof (*name));
821 if (personality(current->personality) == PER_LINUX32)
822 err |= copy_to_user(&name->machine, "i686", 5);
823 return err?-EFAULT:0;
826 long sys32_ustat(unsigned dev, struct ustat32 __user *u32p)
834 ret = sys_ustat(dev,&u);
837 if (!access_ok(VERIFY_WRITE,u32p,sizeof(struct ustat32)) ||
838 __put_user((__u32) u.f_tfree, &u32p->f_tfree) ||
839 __put_user((__u32) u.f_tinode, &u32p->f_tfree) ||
840 __copy_to_user(&u32p->f_fname, u.f_fname, sizeof(u.f_fname)) ||
841 __copy_to_user(&u32p->f_fpack, u.f_fpack, sizeof(u.f_fpack)))
847 asmlinkage long sys32_execve(char __user *name, compat_uptr_t __user *argv,
848 compat_uptr_t __user *envp, struct pt_regs *regs)
853 filename = getname(name);
854 error = PTR_ERR(filename);
855 if (IS_ERR(filename))
857 error = compat_do_execve(filename, argv, envp, regs);
860 current->ptrace &= ~PT_DTRACE;
861 task_unlock(current);
867 asmlinkage long sys32_clone(unsigned int clone_flags, unsigned int newsp,
868 struct pt_regs *regs)
870 void __user *parent_tid = (void __user *)regs->rdx;
871 void __user *child_tid = (void __user *)regs->rdi;
874 return do_fork(clone_flags, newsp, regs, 0, parent_tid, child_tid);
878 * Some system calls that need sign extended arguments. This could be done by a generic wrapper.
881 long sys32_lseek (unsigned int fd, int offset, unsigned int whence)
883 return sys_lseek(fd, offset, whence);
886 long sys32_kill(int pid, int sig)
888 return sys_kill(pid, sig);
891 long sys32_fadvise64_64(int fd, __u32 offset_low, __u32 offset_high,
892 __u32 len_low, __u32 len_high, int advice)
894 return sys_fadvise64_64(fd,
895 (((u64)offset_high)<<32) | offset_low,
896 (((u64)len_high)<<32) | len_low,
900 long sys32_vm86_warning(void)
902 struct task_struct *me = current;
903 static char lastcomm[sizeof(me->comm)];
904 if (strncmp(lastcomm, me->comm, sizeof(lastcomm))) {
905 compat_printk(KERN_INFO "%s: vm86 mode not supported on 64 bit kernel\n",
907 strncpy(lastcomm, me->comm, sizeof(lastcomm));
912 long sys32_lookup_dcookie(u32 addr_low, u32 addr_high,
913 char __user * buf, size_t len)
915 return sys_lookup_dcookie(((u64)addr_high << 32) | addr_low, buf, len);