1 /* $Id: sys_sparc32.c,v 1.184 2002/02/09 19:49:31 davem Exp $
2 * sys_sparc32.c: Conversion between 32bit and 64bit native syscalls.
4 * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
5 * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
7 * These routines maintain argument size conversion between 32bit and 64bit
11 #include <linux/config.h>
12 #include <linux/kernel.h>
13 #include <linux/sched.h>
14 #include <linux/capability.h>
17 #include <linux/file.h>
18 #include <linux/signal.h>
19 #include <linux/resource.h>
20 #include <linux/times.h>
21 #include <linux/utsname.h>
22 #include <linux/smp.h>
23 #include <linux/smp_lock.h>
24 #include <linux/sem.h>
25 #include <linux/msg.h>
26 #include <linux/shm.h>
27 #include <linux/slab.h>
28 #include <linux/uio.h>
29 #include <linux/nfs_fs.h>
30 #include <linux/quota.h>
31 #include <linux/module.h>
32 #include <linux/sunrpc/svc.h>
33 #include <linux/nfsd/nfsd.h>
34 #include <linux/nfsd/cache.h>
35 #include <linux/nfsd/xdr.h>
36 #include <linux/nfsd/syscall.h>
37 #include <linux/poll.h>
38 #include <linux/personality.h>
39 #include <linux/stat.h>
40 #include <linux/filter.h>
41 #include <linux/highmem.h>
42 #include <linux/highuid.h>
43 #include <linux/mman.h>
44 #include <linux/ipv6.h>
46 #include <linux/icmpv6.h>
47 #include <linux/syscalls.h>
48 #include <linux/sysctl.h>
49 #include <linux/binfmts.h>
50 #include <linux/dnotify.h>
51 #include <linux/security.h>
52 #include <linux/compat.h>
53 #include <linux/vfs.h>
54 #include <linux/netfilter_ipv4/ip_tables.h>
55 #include <linux/ptrace.h>
56 #include <linux/highuid.h>
58 #include <asm/types.h>
60 #include <asm/uaccess.h>
61 #include <asm/fpumacro.h>
62 #include <asm/semaphore.h>
63 #include <asm/mmu_context.h>
64 #include <asm/a.out.h>
66 asmlinkage long sys32_chown16(const char __user * filename, u16 user, u16 group)
68 return sys_chown(filename, low2highuid(user), low2highgid(group));
71 asmlinkage long sys32_lchown16(const char __user * filename, u16 user, u16 group)
73 return sys_lchown(filename, low2highuid(user), low2highgid(group));
76 asmlinkage long sys32_fchown16(unsigned int fd, u16 user, u16 group)
78 return sys_fchown(fd, low2highuid(user), low2highgid(group));
81 asmlinkage long sys32_setregid16(u16 rgid, u16 egid)
83 return sys_setregid(low2highgid(rgid), low2highgid(egid));
86 asmlinkage long sys32_setgid16(u16 gid)
88 return sys_setgid((gid_t)gid);
91 asmlinkage long sys32_setreuid16(u16 ruid, u16 euid)
93 return sys_setreuid(low2highuid(ruid), low2highuid(euid));
96 asmlinkage long sys32_setuid16(u16 uid)
98 return sys_setuid((uid_t)uid);
101 asmlinkage long sys32_setresuid16(u16 ruid, u16 euid, u16 suid)
103 return sys_setresuid(low2highuid(ruid), low2highuid(euid),
107 asmlinkage long sys32_getresuid16(u16 __user *ruid, u16 __user *euid, u16 __user *suid)
111 if (!(retval = put_user(high2lowuid(current->uid), ruid)) &&
112 !(retval = put_user(high2lowuid(current->euid), euid)))
113 retval = put_user(high2lowuid(current->suid), suid);
118 asmlinkage long sys32_setresgid16(u16 rgid, u16 egid, u16 sgid)
120 return sys_setresgid(low2highgid(rgid), low2highgid(egid),
124 asmlinkage long sys32_getresgid16(u16 __user *rgid, u16 __user *egid, u16 __user *sgid)
128 if (!(retval = put_user(high2lowgid(current->gid), rgid)) &&
129 !(retval = put_user(high2lowgid(current->egid), egid)))
130 retval = put_user(high2lowgid(current->sgid), sgid);
135 asmlinkage long sys32_setfsuid16(u16 uid)
137 return sys_setfsuid((uid_t)uid);
140 asmlinkage long sys32_setfsgid16(u16 gid)
142 return sys_setfsgid((gid_t)gid);
145 static int groups16_to_user(u16 __user *grouplist, struct group_info *group_info)
150 for (i = 0; i < group_info->ngroups; i++) {
151 group = (u16)GROUP_AT(group_info, i);
152 if (put_user(group, grouplist+i))
159 static int groups16_from_user(struct group_info *group_info, u16 __user *grouplist)
164 for (i = 0; i < group_info->ngroups; i++) {
165 if (get_user(group, grouplist+i))
167 GROUP_AT(group_info, i) = (gid_t)group;
173 asmlinkage long sys32_getgroups16(int gidsetsize, u16 __user *grouplist)
180 get_group_info(current->group_info);
181 i = current->group_info->ngroups;
183 if (i > gidsetsize) {
187 if (groups16_to_user(grouplist, current->group_info)) {
193 put_group_info(current->group_info);
197 asmlinkage long sys32_setgroups16(int gidsetsize, u16 __user *grouplist)
199 struct group_info *group_info;
202 if (!capable(CAP_SETGID))
204 if ((unsigned)gidsetsize > NGROUPS_MAX)
207 group_info = groups_alloc(gidsetsize);
210 retval = groups16_from_user(group_info, grouplist);
212 put_group_info(group_info);
216 retval = set_current_groups(group_info);
217 put_group_info(group_info);
222 asmlinkage long sys32_getuid16(void)
224 return high2lowuid(current->uid);
227 asmlinkage long sys32_geteuid16(void)
229 return high2lowuid(current->euid);
232 asmlinkage long sys32_getgid16(void)
234 return high2lowgid(current->gid);
237 asmlinkage long sys32_getegid16(void)
239 return high2lowgid(current->egid);
242 /* 32-bit timeval and related flotsam. */
244 static long get_tv32(struct timeval *o, struct compat_timeval __user *i)
246 return (!access_ok(VERIFY_READ, i, sizeof(*i)) ||
247 (__get_user(o->tv_sec, &i->tv_sec) |
248 __get_user(o->tv_usec, &i->tv_usec)));
251 static inline long put_tv32(struct compat_timeval __user *o, struct timeval *i)
253 return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
254 (__put_user(i->tv_sec, &o->tv_sec) |
255 __put_user(i->tv_usec, &o->tv_usec)));
258 #ifdef CONFIG_SYSVIPC
259 asmlinkage long compat_sys_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr, u32 fifth)
263 version = call >> 16; /* hack for backward compatibility */
269 /* sign extend semid */
270 return compat_sys_semtimedop((int)first,
271 compat_ptr(ptr), second,
273 /* else fall through for normal semop() */
275 /* struct sembuf is the same on 32 and 64bit :)) */
276 /* sign extend semid */
277 return sys_semtimedop((int)first, compat_ptr(ptr), second,
280 /* sign extend key, nsems */
281 return sys_semget((int)first, (int)second, third);
283 /* sign extend semid, semnum */
284 return compat_sys_semctl((int)first, (int)second, third,
288 /* sign extend msqid */
289 return compat_sys_msgsnd((int)first, (int)second, third,
292 /* sign extend msqid, msgtyp */
293 return compat_sys_msgrcv((int)first, second, (int)fifth,
294 third, version, compat_ptr(ptr));
296 /* sign extend key */
297 return sys_msgget((int)first, second);
299 /* sign extend msqid */
300 return compat_sys_msgctl((int)first, second, compat_ptr(ptr));
303 /* sign extend shmid */
304 return compat_sys_shmat((int)first, second, third, version,
307 return sys_shmdt(compat_ptr(ptr));
309 /* sign extend key_t */
310 return sys_shmget((int)first, second, third);
312 /* sign extend shmid */
313 return compat_sys_shmctl((int)first, second, compat_ptr(ptr));
323 asmlinkage long sys32_truncate64(const char __user * path, unsigned long high, unsigned long low)
328 return sys_truncate(path, (high << 32) | low);
331 asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long high, unsigned long low)
336 return sys_ftruncate(fd, (high << 32) | low);
339 int cp_compat_stat(struct kstat *stat, struct compat_stat __user *statbuf)
343 if (stat->size > MAX_NON_LFS || !old_valid_dev(stat->dev) ||
344 !old_valid_dev(stat->rdev))
347 err = put_user(old_encode_dev(stat->dev), &statbuf->st_dev);
348 err |= put_user(stat->ino, &statbuf->st_ino);
349 err |= put_user(stat->mode, &statbuf->st_mode);
350 err |= put_user(stat->nlink, &statbuf->st_nlink);
351 err |= put_user(high2lowuid(stat->uid), &statbuf->st_uid);
352 err |= put_user(high2lowgid(stat->gid), &statbuf->st_gid);
353 err |= put_user(old_encode_dev(stat->rdev), &statbuf->st_rdev);
354 err |= put_user(stat->size, &statbuf->st_size);
355 err |= put_user(stat->atime.tv_sec, &statbuf->st_atime);
356 err |= put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec);
357 err |= put_user(stat->mtime.tv_sec, &statbuf->st_mtime);
358 err |= put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec);
359 err |= put_user(stat->ctime.tv_sec, &statbuf->st_ctime);
360 err |= put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec);
361 err |= put_user(stat->blksize, &statbuf->st_blksize);
362 err |= put_user(stat->blocks, &statbuf->st_blocks);
363 err |= put_user(0, &statbuf->__unused4[0]);
364 err |= put_user(0, &statbuf->__unused4[1]);
369 int cp_compat_stat64(struct kstat *stat, struct compat_stat64 __user *statbuf)
373 err = put_user(huge_encode_dev(stat->dev), &statbuf->st_dev);
374 err |= put_user(stat->ino, &statbuf->st_ino);
375 err |= put_user(stat->mode, &statbuf->st_mode);
376 err |= put_user(stat->nlink, &statbuf->st_nlink);
377 err |= put_user(stat->uid, &statbuf->st_uid);
378 err |= put_user(stat->gid, &statbuf->st_gid);
379 err |= put_user(huge_encode_dev(stat->rdev), &statbuf->st_rdev);
380 err |= put_user(0, (unsigned long __user *) &statbuf->__pad3[0]);
381 err |= put_user(stat->size, &statbuf->st_size);
382 err |= put_user(stat->blksize, &statbuf->st_blksize);
383 err |= put_user(0, (unsigned int __user *) &statbuf->__pad4[0]);
384 err |= put_user(0, (unsigned int __user *) &statbuf->__pad4[4]);
385 err |= put_user(stat->blocks, &statbuf->st_blocks);
386 err |= put_user(stat->atime.tv_sec, &statbuf->st_atime);
387 err |= put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec);
388 err |= put_user(stat->mtime.tv_sec, &statbuf->st_mtime);
389 err |= put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec);
390 err |= put_user(stat->ctime.tv_sec, &statbuf->st_ctime);
391 err |= put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec);
392 err |= put_user(0, &statbuf->__unused4);
393 err |= put_user(0, &statbuf->__unused5);
398 asmlinkage long compat_sys_stat64(char __user * filename,
399 struct compat_stat64 __user *statbuf)
402 int error = vfs_stat(filename, &stat);
405 error = cp_compat_stat64(&stat, statbuf);
409 asmlinkage long compat_sys_lstat64(char __user * filename,
410 struct compat_stat64 __user *statbuf)
413 int error = vfs_lstat(filename, &stat);
416 error = cp_compat_stat64(&stat, statbuf);
420 asmlinkage long compat_sys_fstat64(unsigned int fd,
421 struct compat_stat64 __user * statbuf)
424 int error = vfs_fstat(fd, &stat);
427 error = cp_compat_stat64(&stat, statbuf);
431 asmlinkage long compat_sys_fstatat64(unsigned int dfd, char __user *filename,
432 struct compat_stat64 __user * statbuf, int flag)
437 if ((flag & ~AT_SYMLINK_NOFOLLOW) != 0)
440 if (flag & AT_SYMLINK_NOFOLLOW)
441 error = vfs_lstat_fd(dfd, filename, &stat);
443 error = vfs_stat_fd(dfd, filename, &stat);
446 error = cp_compat_stat64(&stat, statbuf);
452 asmlinkage long compat_sys_sysfs(int option, u32 arg1, u32 arg2)
454 return sys_sysfs(option, arg1, arg2);
466 unsigned short procs;
471 char _f[20-2*sizeof(int)-sizeof(int)];
474 asmlinkage long sys32_sysinfo(struct sysinfo32 __user *info)
479 mm_segment_t old_fs = get_fs ();
482 ret = sys_sysinfo((struct sysinfo __user *) &s);
484 /* Check to see if any memory value is too large for 32-bit and
485 * scale down if needed.
487 if ((s.totalram >> 32) || (s.totalswap >> 32)) {
488 while (s.mem_unit < PAGE_SIZE) {
492 s.totalram >>= bitcount;
493 s.freeram >>= bitcount;
494 s.sharedram >>= bitcount;
495 s.bufferram >>= bitcount;
496 s.totalswap >>= bitcount;
497 s.freeswap >>= bitcount;
498 s.totalhigh >>= bitcount;
499 s.freehigh >>= bitcount;
502 err = put_user (s.uptime, &info->uptime);
503 err |= __put_user (s.loads[0], &info->loads[0]);
504 err |= __put_user (s.loads[1], &info->loads[1]);
505 err |= __put_user (s.loads[2], &info->loads[2]);
506 err |= __put_user (s.totalram, &info->totalram);
507 err |= __put_user (s.freeram, &info->freeram);
508 err |= __put_user (s.sharedram, &info->sharedram);
509 err |= __put_user (s.bufferram, &info->bufferram);
510 err |= __put_user (s.totalswap, &info->totalswap);
511 err |= __put_user (s.freeswap, &info->freeswap);
512 err |= __put_user (s.procs, &info->procs);
513 err |= __put_user (s.totalhigh, &info->totalhigh);
514 err |= __put_user (s.freehigh, &info->freehigh);
515 err |= __put_user (s.mem_unit, &info->mem_unit);
521 asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid, struct compat_timespec __user *interval)
525 mm_segment_t old_fs = get_fs ();
528 ret = sys_sched_rr_get_interval(pid, (struct timespec __user *) &t);
530 if (put_compat_timespec(&t, interval))
535 asmlinkage long compat_sys_rt_sigprocmask(int how,
536 compat_sigset_t __user *set,
537 compat_sigset_t __user *oset,
538 compat_size_t sigsetsize)
543 mm_segment_t old_fs = get_fs();
546 if (copy_from_user (&s32, set, sizeof(compat_sigset_t)))
548 switch (_NSIG_WORDS) {
549 case 4: s.sig[3] = s32.sig[6] | (((long)s32.sig[7]) << 32);
550 case 3: s.sig[2] = s32.sig[4] | (((long)s32.sig[5]) << 32);
551 case 2: s.sig[1] = s32.sig[2] | (((long)s32.sig[3]) << 32);
552 case 1: s.sig[0] = s32.sig[0] | (((long)s32.sig[1]) << 32);
556 ret = sys_rt_sigprocmask(how,
557 set ? (sigset_t __user *) &s : NULL,
558 oset ? (sigset_t __user *) &s : NULL,
563 switch (_NSIG_WORDS) {
564 case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
565 case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
566 case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
567 case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
569 if (copy_to_user (oset, &s32, sizeof(compat_sigset_t)))
575 asmlinkage long sys32_rt_sigpending(compat_sigset_t __user *set,
576 compat_size_t sigsetsize)
581 mm_segment_t old_fs = get_fs();
584 ret = sys_rt_sigpending((sigset_t __user *) &s, sigsetsize);
587 switch (_NSIG_WORDS) {
588 case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
589 case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
590 case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
591 case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
593 if (copy_to_user (set, &s32, sizeof(compat_sigset_t)))
599 asmlinkage long compat_sys_rt_sigqueueinfo(int pid, int sig,
600 struct compat_siginfo __user *uinfo)
604 mm_segment_t old_fs = get_fs();
606 if (copy_siginfo_from_user32(&info, uinfo))
610 ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __user *) &info);
615 asmlinkage long compat_sys_sigaction(int sig, struct old_sigaction32 __user *act,
616 struct old_sigaction32 __user *oact)
618 struct k_sigaction new_ka, old_ka;
622 set_thread_flag(TIF_NEWSIGNALS);
627 compat_old_sigset_t mask;
628 u32 u_handler, u_restorer;
630 ret = get_user(u_handler, &act->sa_handler);
631 new_ka.sa.sa_handler = compat_ptr(u_handler);
632 ret |= __get_user(u_restorer, &act->sa_restorer);
633 new_ka.sa.sa_restorer = compat_ptr(u_restorer);
634 ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
635 ret |= __get_user(mask, &act->sa_mask);
638 new_ka.ka_restorer = NULL;
639 siginitset(&new_ka.sa.sa_mask, mask);
642 ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
645 ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler);
646 ret |= __put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer);
647 ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
648 ret |= __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
654 asmlinkage long compat_sys_rt_sigaction(int sig,
655 struct sigaction32 __user *act,
656 struct sigaction32 __user *oact,
657 void __user *restorer,
658 compat_size_t sigsetsize)
660 struct k_sigaction new_ka, old_ka;
662 compat_sigset_t set32;
664 /* XXX: Don't preclude handling different sized sigset_t's. */
665 if (sigsetsize != sizeof(compat_sigset_t))
668 /* All tasks which use RT signals (effectively) use
671 set_thread_flag(TIF_NEWSIGNALS);
674 u32 u_handler, u_restorer;
676 new_ka.ka_restorer = restorer;
677 ret = get_user(u_handler, &act->sa_handler);
678 new_ka.sa.sa_handler = compat_ptr(u_handler);
679 ret |= __copy_from_user(&set32, &act->sa_mask, sizeof(compat_sigset_t));
680 switch (_NSIG_WORDS) {
681 case 4: new_ka.sa.sa_mask.sig[3] = set32.sig[6] | (((long)set32.sig[7]) << 32);
682 case 3: new_ka.sa.sa_mask.sig[2] = set32.sig[4] | (((long)set32.sig[5]) << 32);
683 case 2: new_ka.sa.sa_mask.sig[1] = set32.sig[2] | (((long)set32.sig[3]) << 32);
684 case 1: new_ka.sa.sa_mask.sig[0] = set32.sig[0] | (((long)set32.sig[1]) << 32);
686 ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
687 ret |= __get_user(u_restorer, &act->sa_restorer);
688 new_ka.sa.sa_restorer = compat_ptr(u_restorer);
693 ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
696 switch (_NSIG_WORDS) {
697 case 4: set32.sig[7] = (old_ka.sa.sa_mask.sig[3] >> 32); set32.sig[6] = old_ka.sa.sa_mask.sig[3];
698 case 3: set32.sig[5] = (old_ka.sa.sa_mask.sig[2] >> 32); set32.sig[4] = old_ka.sa.sa_mask.sig[2];
699 case 2: set32.sig[3] = (old_ka.sa.sa_mask.sig[1] >> 32); set32.sig[2] = old_ka.sa.sa_mask.sig[1];
700 case 1: set32.sig[1] = (old_ka.sa.sa_mask.sig[0] >> 32); set32.sig[0] = old_ka.sa.sa_mask.sig[0];
702 ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler);
703 ret |= __copy_to_user(&oact->sa_mask, &set32, sizeof(compat_sigset_t));
704 ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
705 ret |= __put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer);
714 * sparc32_execve() executes a new program after the asm stub has set
715 * things up for us. This should basically do what I want it to.
717 asmlinkage long sparc32_execve(struct pt_regs *regs)
722 /* User register window flush is done by entry.S */
724 /* Check for indirect call. */
725 if ((u32)regs->u_regs[UREG_G1] == 0)
728 filename = getname(compat_ptr(regs->u_regs[base + UREG_I0]));
729 error = PTR_ERR(filename);
730 if (IS_ERR(filename))
733 error = compat_do_execve(filename,
734 compat_ptr(regs->u_regs[base + UREG_I1]),
735 compat_ptr(regs->u_regs[base + UREG_I2]), regs);
741 current_thread_info()->xfsr[0] = 0;
742 current_thread_info()->fpsaved[0] = 0;
743 regs->tstate &= ~TSTATE_PEF;
745 current->ptrace &= ~PT_DTRACE;
746 task_unlock(current);
752 #ifdef CONFIG_MODULES
754 asmlinkage long sys32_init_module(void __user *umod, u32 len,
755 const char __user *uargs)
757 return sys_init_module(umod, len, uargs);
760 asmlinkage long sys32_delete_module(const char __user *name_user,
763 return sys_delete_module(name_user, flags);
766 #else /* CONFIG_MODULES */
768 asmlinkage long sys32_init_module(const char __user *name_user,
769 struct module __user *mod_user)
774 asmlinkage long sys32_delete_module(const char __user *name_user)
779 #endif /* CONFIG_MODULES */
781 /* Translations due to time_t size differences. Which affects all
782 sorts of things, like timeval and itimerval. */
784 extern struct timezone sys_tz;
786 asmlinkage long sys32_gettimeofday(struct compat_timeval __user *tv,
787 struct timezone __user *tz)
791 do_gettimeofday(&ktv);
792 if (put_tv32(tv, &ktv))
796 if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
802 static inline long get_ts32(struct timespec *o, struct compat_timeval __user *i)
806 if (!access_ok(VERIFY_READ, i, sizeof(*i)))
808 if (__get_user(o->tv_sec, &i->tv_sec))
810 if (__get_user(usec, &i->tv_usec))
812 o->tv_nsec = usec * 1000;
816 asmlinkage long sys32_settimeofday(struct compat_timeval __user *tv,
817 struct timezone __user *tz)
823 if (get_ts32(&kts, tv))
827 if (copy_from_user(&ktz, tz, sizeof(ktz)))
831 return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
834 asmlinkage long sys32_utimes(char __user *filename,
835 struct compat_timeval __user *tvs)
837 struct timeval ktvs[2];
840 if (get_tv32(&ktvs[0], tvs) ||
841 get_tv32(&ktvs[1], 1+tvs))
845 return do_utimes(AT_FDCWD, filename, (tvs ? &ktvs[0] : NULL));
848 /* These are here just in case some old sparc32 binary calls it. */
849 asmlinkage long sys32_pause(void)
851 current->state = TASK_INTERRUPTIBLE;
853 return -ERESTARTNOHAND;
856 asmlinkage compat_ssize_t sys32_pread64(unsigned int fd,
862 return sys_pread64(fd, ubuf, count, (poshi << 32) | poslo);
865 asmlinkage compat_ssize_t sys32_pwrite64(unsigned int fd,
871 return sys_pwrite64(fd, ubuf, count, (poshi << 32) | poslo);
874 asmlinkage long compat_sys_readahead(int fd,
879 return sys_readahead(fd, (offhi << 32) | offlo, count);
882 long compat_sys_fadvise64(int fd,
885 compat_size_t len, int advice)
887 return sys_fadvise64_64(fd, (offhi << 32) | offlo, len, advice);
890 long compat_sys_fadvise64_64(int fd,
891 unsigned long offhi, unsigned long offlo,
892 unsigned long lenhi, unsigned long lenlo,
895 return sys_fadvise64_64(fd,
896 (offhi << 32) | offlo,
897 (lenhi << 32) | lenlo,
901 asmlinkage long compat_sys_sendfile(int out_fd, int in_fd,
902 compat_off_t __user *offset,
905 mm_segment_t old_fs = get_fs();
909 if (offset && get_user(of, offset))
913 ret = sys_sendfile(out_fd, in_fd,
914 offset ? (off_t __user *) &of : NULL,
918 if (offset && put_user(of, offset))
924 asmlinkage long compat_sys_sendfile64(int out_fd, int in_fd,
925 compat_loff_t __user *offset,
928 mm_segment_t old_fs = get_fs();
932 if (offset && get_user(lof, offset))
936 ret = sys_sendfile64(out_fd, in_fd,
937 offset ? (loff_t __user *) &lof : NULL,
941 if (offset && put_user(lof, offset))
947 /* This is just a version for 32-bit applications which does
948 * not force O_LARGEFILE on.
951 asmlinkage long sparc32_open(const char __user *filename,
954 return do_sys_open(AT_FDCWD, filename, flags, mode);
957 extern unsigned long do_mremap(unsigned long addr,
958 unsigned long old_len, unsigned long new_len,
959 unsigned long flags, unsigned long new_addr);
961 asmlinkage unsigned long sys32_mremap(unsigned long addr,
962 unsigned long old_len, unsigned long new_len,
963 unsigned long flags, u32 __new_addr)
965 struct vm_area_struct *vma;
966 unsigned long ret = -EINVAL;
967 unsigned long new_addr = __new_addr;
969 if (old_len > STACK_TOP32 || new_len > STACK_TOP32)
971 if (addr > STACK_TOP32 - old_len)
973 down_write(¤t->mm->mmap_sem);
974 if (flags & MREMAP_FIXED) {
975 if (new_addr > STACK_TOP32 - new_len)
977 } else if (addr > STACK_TOP32 - new_len) {
978 unsigned long map_flags = 0;
979 struct file *file = NULL;
982 if (!(flags & MREMAP_MAYMOVE))
985 vma = find_vma(current->mm, addr);
987 if (vma->vm_flags & VM_SHARED)
988 map_flags |= MAP_SHARED;
992 /* MREMAP_FIXED checked above. */
993 new_addr = get_unmapped_area(file, addr, new_len,
994 vma ? vma->vm_pgoff : 0,
997 if (new_addr & ~PAGE_MASK)
999 flags |= MREMAP_FIXED;
1001 ret = do_mremap(addr, old_len, new_len, flags, new_addr);
1003 up_write(¤t->mm->mmap_sem);
1008 struct __sysctl_args32 {
1018 asmlinkage long sys32_sysctl(struct __sysctl_args32 __user *args)
1020 #ifndef CONFIG_SYSCTL
1023 struct __sysctl_args32 tmp;
1025 size_t oldlen, __user *oldlenp = NULL;
1026 unsigned long addr = (((unsigned long)&args->__unused[0]) + 7UL) & ~7UL;
1028 if (copy_from_user(&tmp, args, sizeof(tmp)))
1031 if (tmp.oldval && tmp.oldlenp) {
1032 /* Duh, this is ugly and might not work if sysctl_args
1033 is in read-only memory, but do_sysctl does indirectly
1034 a lot of uaccess in both directions and we'd have to
1035 basically copy the whole sysctl.c here, and
1036 glibc's __sysctl uses rw memory for the structure
1038 if (get_user(oldlen, (u32 __user *)(unsigned long)tmp.oldlenp) ||
1039 put_user(oldlen, (size_t __user *)addr))
1041 oldlenp = (size_t __user *)addr;
1045 error = do_sysctl((int __user *)(unsigned long) tmp.name,
1047 (void __user *)(unsigned long) tmp.oldval,
1049 (void __user *)(unsigned long) tmp.newval,
1054 if (get_user(oldlen, (size_t __user *)addr) ||
1055 put_user(oldlen, (u32 __user *)(unsigned long) tmp.oldlenp))
1058 if (copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused)))
1065 long sys32_lookup_dcookie(unsigned long cookie_high,
1066 unsigned long cookie_low,
1067 char __user *buf, size_t len)
1069 return sys_lookup_dcookie((cookie_high << 32) | cookie_low,
1073 long compat_sync_file_range(int fd, unsigned long off_high, unsigned long off_low, unsigned long nb_high, unsigned long nb_low, int flags)
1075 return sys_sync_file_range(fd,
1076 (off_high << 32) | off_low,
1077 (nb_high << 32) | nb_low,