1 /* sys_sparc32.c: Conversion between 32bit and 64bit native syscalls.
3 * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
4 * Copyright (C) 1997, 2007 David S. Miller (davem@davemloft.net)
6 * These routines maintain argument size conversion between 32bit and 64bit
10 #include <linux/kernel.h>
11 #include <linux/sched.h>
12 #include <linux/capability.h>
15 #include <linux/file.h>
16 #include <linux/signal.h>
17 #include <linux/resource.h>
18 #include <linux/times.h>
19 #include <linux/utsname.h>
20 #include <linux/smp.h>
21 #include <linux/smp_lock.h>
22 #include <linux/sem.h>
23 #include <linux/msg.h>
24 #include <linux/shm.h>
25 #include <linux/slab.h>
26 #include <linux/uio.h>
27 #include <linux/nfs_fs.h>
28 #include <linux/quota.h>
29 #include <linux/module.h>
30 #include <linux/sunrpc/svc.h>
31 #include <linux/nfsd/nfsd.h>
32 #include <linux/nfsd/cache.h>
33 #include <linux/nfsd/xdr.h>
34 #include <linux/nfsd/syscall.h>
35 #include <linux/poll.h>
36 #include <linux/personality.h>
37 #include <linux/stat.h>
38 #include <linux/filter.h>
39 #include <linux/highmem.h>
40 #include <linux/highuid.h>
41 #include <linux/mman.h>
42 #include <linux/ipv6.h>
44 #include <linux/icmpv6.h>
45 #include <linux/syscalls.h>
46 #include <linux/sysctl.h>
47 #include <linux/binfmts.h>
48 #include <linux/dnotify.h>
49 #include <linux/security.h>
50 #include <linux/compat.h>
51 #include <linux/vfs.h>
52 #include <linux/netfilter_ipv4/ip_tables.h>
53 #include <linux/ptrace.h>
55 #include <asm/types.h>
56 #include <asm/uaccess.h>
57 #include <asm/fpumacro.h>
58 #include <asm/mmu_context.h>
59 #include <asm/compat_signal.h>
61 asmlinkage long sys32_chown16(const char __user * filename, u16 user, u16 group)
63 return sys_chown(filename, low2highuid(user), low2highgid(group));
66 asmlinkage long sys32_lchown16(const char __user * filename, u16 user, u16 group)
68 return sys_lchown(filename, low2highuid(user), low2highgid(group));
71 asmlinkage long sys32_fchown16(unsigned int fd, u16 user, u16 group)
73 return sys_fchown(fd, low2highuid(user), low2highgid(group));
76 asmlinkage long sys32_setregid16(u16 rgid, u16 egid)
78 return sys_setregid(low2highgid(rgid), low2highgid(egid));
81 asmlinkage long sys32_setgid16(u16 gid)
83 return sys_setgid((gid_t)gid);
86 asmlinkage long sys32_setreuid16(u16 ruid, u16 euid)
88 return sys_setreuid(low2highuid(ruid), low2highuid(euid));
91 asmlinkage long sys32_setuid16(u16 uid)
93 return sys_setuid((uid_t)uid);
96 asmlinkage long sys32_setresuid16(u16 ruid, u16 euid, u16 suid)
98 return sys_setresuid(low2highuid(ruid), low2highuid(euid),
102 asmlinkage long sys32_getresuid16(u16 __user *ruid, u16 __user *euid, u16 __user *suid)
106 if (!(retval = put_user(high2lowuid(current->uid), ruid)) &&
107 !(retval = put_user(high2lowuid(current->euid), euid)))
108 retval = put_user(high2lowuid(current->suid), suid);
113 asmlinkage long sys32_setresgid16(u16 rgid, u16 egid, u16 sgid)
115 return sys_setresgid(low2highgid(rgid), low2highgid(egid),
119 asmlinkage long sys32_getresgid16(u16 __user *rgid, u16 __user *egid, u16 __user *sgid)
123 if (!(retval = put_user(high2lowgid(current->gid), rgid)) &&
124 !(retval = put_user(high2lowgid(current->egid), egid)))
125 retval = put_user(high2lowgid(current->sgid), sgid);
130 asmlinkage long sys32_setfsuid16(u16 uid)
132 return sys_setfsuid((uid_t)uid);
135 asmlinkage long sys32_setfsgid16(u16 gid)
137 return sys_setfsgid((gid_t)gid);
140 static int groups16_to_user(u16 __user *grouplist, struct group_info *group_info)
145 for (i = 0; i < group_info->ngroups; i++) {
146 group = (u16)GROUP_AT(group_info, i);
147 if (put_user(group, grouplist+i))
154 static int groups16_from_user(struct group_info *group_info, u16 __user *grouplist)
159 for (i = 0; i < group_info->ngroups; i++) {
160 if (get_user(group, grouplist+i))
162 GROUP_AT(group_info, i) = (gid_t)group;
168 asmlinkage long sys32_getgroups16(int gidsetsize, u16 __user *grouplist)
175 get_group_info(current->group_info);
176 i = current->group_info->ngroups;
178 if (i > gidsetsize) {
182 if (groups16_to_user(grouplist, current->group_info)) {
188 put_group_info(current->group_info);
192 asmlinkage long sys32_setgroups16(int gidsetsize, u16 __user *grouplist)
194 struct group_info *group_info;
197 if (!capable(CAP_SETGID))
199 if ((unsigned)gidsetsize > NGROUPS_MAX)
202 group_info = groups_alloc(gidsetsize);
205 retval = groups16_from_user(group_info, grouplist);
207 put_group_info(group_info);
211 retval = set_current_groups(group_info);
212 put_group_info(group_info);
217 asmlinkage long sys32_getuid16(void)
219 return high2lowuid(current->uid);
222 asmlinkage long sys32_geteuid16(void)
224 return high2lowuid(current->euid);
227 asmlinkage long sys32_getgid16(void)
229 return high2lowgid(current->gid);
232 asmlinkage long sys32_getegid16(void)
234 return high2lowgid(current->egid);
237 /* 32-bit timeval and related flotsam. */
239 static inline long put_tv32(struct compat_timeval __user *o, struct timeval *i)
241 return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
242 (__put_user(i->tv_sec, &o->tv_sec) |
243 __put_user(i->tv_usec, &o->tv_usec)));
246 #ifdef CONFIG_SYSVIPC
247 asmlinkage long compat_sys_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr, u32 fifth)
251 version = call >> 16; /* hack for backward compatibility */
257 /* sign extend semid */
258 return compat_sys_semtimedop((int)first,
259 compat_ptr(ptr), second,
261 /* else fall through for normal semop() */
263 /* struct sembuf is the same on 32 and 64bit :)) */
264 /* sign extend semid */
265 return sys_semtimedop((int)first, compat_ptr(ptr), second,
268 /* sign extend key, nsems */
269 return sys_semget((int)first, (int)second, third);
271 /* sign extend semid, semnum */
272 return compat_sys_semctl((int)first, (int)second, third,
276 /* sign extend msqid */
277 return compat_sys_msgsnd((int)first, (int)second, third,
280 /* sign extend msqid, msgtyp */
281 return compat_sys_msgrcv((int)first, second, (int)fifth,
282 third, version, compat_ptr(ptr));
284 /* sign extend key */
285 return sys_msgget((int)first, second);
287 /* sign extend msqid */
288 return compat_sys_msgctl((int)first, second, compat_ptr(ptr));
291 /* sign extend shmid */
292 return compat_sys_shmat((int)first, second, third, version,
295 return sys_shmdt(compat_ptr(ptr));
297 /* sign extend key_t */
298 return sys_shmget((int)first, second, third);
300 /* sign extend shmid */
301 return compat_sys_shmctl((int)first, second, compat_ptr(ptr));
311 asmlinkage long sys32_truncate64(const char __user * path, unsigned long high, unsigned long low)
316 return sys_truncate(path, (high << 32) | low);
319 asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long high, unsigned long low)
324 return sys_ftruncate(fd, (high << 32) | low);
327 int cp_compat_stat(struct kstat *stat, struct compat_stat __user *statbuf)
332 if (stat->size > MAX_NON_LFS || !old_valid_dev(stat->dev) ||
333 !old_valid_dev(stat->rdev))
337 if (sizeof(ino) < sizeof(stat->ino) && ino != stat->ino)
340 err = put_user(old_encode_dev(stat->dev), &statbuf->st_dev);
341 err |= put_user(stat->ino, &statbuf->st_ino);
342 err |= put_user(stat->mode, &statbuf->st_mode);
343 err |= put_user(stat->nlink, &statbuf->st_nlink);
344 err |= put_user(high2lowuid(stat->uid), &statbuf->st_uid);
345 err |= put_user(high2lowgid(stat->gid), &statbuf->st_gid);
346 err |= put_user(old_encode_dev(stat->rdev), &statbuf->st_rdev);
347 err |= put_user(stat->size, &statbuf->st_size);
348 err |= put_user(stat->atime.tv_sec, &statbuf->st_atime);
349 err |= put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec);
350 err |= put_user(stat->mtime.tv_sec, &statbuf->st_mtime);
351 err |= put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec);
352 err |= put_user(stat->ctime.tv_sec, &statbuf->st_ctime);
353 err |= put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec);
354 err |= put_user(stat->blksize, &statbuf->st_blksize);
355 err |= put_user(stat->blocks, &statbuf->st_blocks);
356 err |= put_user(0, &statbuf->__unused4[0]);
357 err |= put_user(0, &statbuf->__unused4[1]);
362 int cp_compat_stat64(struct kstat *stat, struct compat_stat64 __user *statbuf)
366 err = put_user(huge_encode_dev(stat->dev), &statbuf->st_dev);
367 err |= put_user(stat->ino, &statbuf->st_ino);
368 err |= put_user(stat->mode, &statbuf->st_mode);
369 err |= put_user(stat->nlink, &statbuf->st_nlink);
370 err |= put_user(stat->uid, &statbuf->st_uid);
371 err |= put_user(stat->gid, &statbuf->st_gid);
372 err |= put_user(huge_encode_dev(stat->rdev), &statbuf->st_rdev);
373 err |= put_user(0, (unsigned long __user *) &statbuf->__pad3[0]);
374 err |= put_user(stat->size, &statbuf->st_size);
375 err |= put_user(stat->blksize, &statbuf->st_blksize);
376 err |= put_user(0, (unsigned int __user *) &statbuf->__pad4[0]);
377 err |= put_user(0, (unsigned int __user *) &statbuf->__pad4[4]);
378 err |= put_user(stat->blocks, &statbuf->st_blocks);
379 err |= put_user(stat->atime.tv_sec, &statbuf->st_atime);
380 err |= put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec);
381 err |= put_user(stat->mtime.tv_sec, &statbuf->st_mtime);
382 err |= put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec);
383 err |= put_user(stat->ctime.tv_sec, &statbuf->st_ctime);
384 err |= put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec);
385 err |= put_user(0, &statbuf->__unused4);
386 err |= put_user(0, &statbuf->__unused5);
391 asmlinkage long compat_sys_stat64(char __user * filename,
392 struct compat_stat64 __user *statbuf)
395 int error = vfs_stat(filename, &stat);
398 error = cp_compat_stat64(&stat, statbuf);
402 asmlinkage long compat_sys_lstat64(char __user * filename,
403 struct compat_stat64 __user *statbuf)
406 int error = vfs_lstat(filename, &stat);
409 error = cp_compat_stat64(&stat, statbuf);
413 asmlinkage long compat_sys_fstat64(unsigned int fd,
414 struct compat_stat64 __user * statbuf)
417 int error = vfs_fstat(fd, &stat);
420 error = cp_compat_stat64(&stat, statbuf);
424 asmlinkage long compat_sys_fstatat64(unsigned int dfd, char __user *filename,
425 struct compat_stat64 __user * statbuf, int flag)
430 if ((flag & ~AT_SYMLINK_NOFOLLOW) != 0)
433 if (flag & AT_SYMLINK_NOFOLLOW)
434 error = vfs_lstat_fd(dfd, filename, &stat);
436 error = vfs_stat_fd(dfd, filename, &stat);
439 error = cp_compat_stat64(&stat, statbuf);
445 asmlinkage long compat_sys_sysfs(int option, u32 arg1, u32 arg2)
447 return sys_sysfs(option, arg1, arg2);
450 asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid, struct compat_timespec __user *interval)
454 mm_segment_t old_fs = get_fs ();
457 ret = sys_sched_rr_get_interval(pid, (struct timespec __user *) &t);
459 if (put_compat_timespec(&t, interval))
464 asmlinkage long compat_sys_rt_sigprocmask(int how,
465 compat_sigset_t __user *set,
466 compat_sigset_t __user *oset,
467 compat_size_t sigsetsize)
472 mm_segment_t old_fs = get_fs();
475 if (copy_from_user (&s32, set, sizeof(compat_sigset_t)))
477 switch (_NSIG_WORDS) {
478 case 4: s.sig[3] = s32.sig[6] | (((long)s32.sig[7]) << 32);
479 case 3: s.sig[2] = s32.sig[4] | (((long)s32.sig[5]) << 32);
480 case 2: s.sig[1] = s32.sig[2] | (((long)s32.sig[3]) << 32);
481 case 1: s.sig[0] = s32.sig[0] | (((long)s32.sig[1]) << 32);
485 ret = sys_rt_sigprocmask(how,
486 set ? (sigset_t __user *) &s : NULL,
487 oset ? (sigset_t __user *) &s : NULL,
492 switch (_NSIG_WORDS) {
493 case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
494 case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
495 case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
496 case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
498 if (copy_to_user (oset, &s32, sizeof(compat_sigset_t)))
504 asmlinkage long sys32_rt_sigpending(compat_sigset_t __user *set,
505 compat_size_t sigsetsize)
510 mm_segment_t old_fs = get_fs();
513 ret = sys_rt_sigpending((sigset_t __user *) &s, sigsetsize);
516 switch (_NSIG_WORDS) {
517 case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
518 case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
519 case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
520 case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
522 if (copy_to_user (set, &s32, sizeof(compat_sigset_t)))
528 asmlinkage long compat_sys_rt_sigqueueinfo(int pid, int sig,
529 struct compat_siginfo __user *uinfo)
533 mm_segment_t old_fs = get_fs();
535 if (copy_siginfo_from_user32(&info, uinfo))
539 ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __user *) &info);
544 asmlinkage long compat_sys_sigaction(int sig, struct old_sigaction32 __user *act,
545 struct old_sigaction32 __user *oact)
547 struct k_sigaction new_ka, old_ka;
550 WARN_ON_ONCE(sig >= 0);
554 compat_old_sigset_t mask;
555 u32 u_handler, u_restorer;
557 ret = get_user(u_handler, &act->sa_handler);
558 new_ka.sa.sa_handler = compat_ptr(u_handler);
559 ret |= __get_user(u_restorer, &act->sa_restorer);
560 new_ka.sa.sa_restorer = compat_ptr(u_restorer);
561 ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
562 ret |= __get_user(mask, &act->sa_mask);
565 new_ka.ka_restorer = NULL;
566 siginitset(&new_ka.sa.sa_mask, mask);
569 ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
572 ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler);
573 ret |= __put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer);
574 ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
575 ret |= __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
581 asmlinkage long compat_sys_rt_sigaction(int sig,
582 struct sigaction32 __user *act,
583 struct sigaction32 __user *oact,
584 void __user *restorer,
585 compat_size_t sigsetsize)
587 struct k_sigaction new_ka, old_ka;
589 compat_sigset_t set32;
591 /* XXX: Don't preclude handling different sized sigset_t's. */
592 if (sigsetsize != sizeof(compat_sigset_t))
596 u32 u_handler, u_restorer;
598 new_ka.ka_restorer = restorer;
599 ret = get_user(u_handler, &act->sa_handler);
600 new_ka.sa.sa_handler = compat_ptr(u_handler);
601 ret |= __copy_from_user(&set32, &act->sa_mask, sizeof(compat_sigset_t));
602 switch (_NSIG_WORDS) {
603 case 4: new_ka.sa.sa_mask.sig[3] = set32.sig[6] | (((long)set32.sig[7]) << 32);
604 case 3: new_ka.sa.sa_mask.sig[2] = set32.sig[4] | (((long)set32.sig[5]) << 32);
605 case 2: new_ka.sa.sa_mask.sig[1] = set32.sig[2] | (((long)set32.sig[3]) << 32);
606 case 1: new_ka.sa.sa_mask.sig[0] = set32.sig[0] | (((long)set32.sig[1]) << 32);
608 ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
609 ret |= __get_user(u_restorer, &act->sa_restorer);
610 new_ka.sa.sa_restorer = compat_ptr(u_restorer);
615 ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
618 switch (_NSIG_WORDS) {
619 case 4: set32.sig[7] = (old_ka.sa.sa_mask.sig[3] >> 32); set32.sig[6] = old_ka.sa.sa_mask.sig[3];
620 case 3: set32.sig[5] = (old_ka.sa.sa_mask.sig[2] >> 32); set32.sig[4] = old_ka.sa.sa_mask.sig[2];
621 case 2: set32.sig[3] = (old_ka.sa.sa_mask.sig[1] >> 32); set32.sig[2] = old_ka.sa.sa_mask.sig[1];
622 case 1: set32.sig[1] = (old_ka.sa.sa_mask.sig[0] >> 32); set32.sig[0] = old_ka.sa.sa_mask.sig[0];
624 ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler);
625 ret |= __copy_to_user(&oact->sa_mask, &set32, sizeof(compat_sigset_t));
626 ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
627 ret |= __put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer);
636 * sparc32_execve() executes a new program after the asm stub has set
637 * things up for us. This should basically do what I want it to.
639 asmlinkage long sparc32_execve(struct pt_regs *regs)
644 /* User register window flush is done by entry.S */
646 /* Check for indirect call. */
647 if ((u32)regs->u_regs[UREG_G1] == 0)
650 filename = getname(compat_ptr(regs->u_regs[base + UREG_I0]));
651 error = PTR_ERR(filename);
652 if (IS_ERR(filename))
655 error = compat_do_execve(filename,
656 compat_ptr(regs->u_regs[base + UREG_I1]),
657 compat_ptr(regs->u_regs[base + UREG_I2]), regs);
663 current_thread_info()->xfsr[0] = 0;
664 current_thread_info()->fpsaved[0] = 0;
665 regs->tstate &= ~TSTATE_PEF;
671 #ifdef CONFIG_MODULES
673 asmlinkage long sys32_init_module(void __user *umod, u32 len,
674 const char __user *uargs)
676 return sys_init_module(umod, len, uargs);
679 asmlinkage long sys32_delete_module(const char __user *name_user,
682 return sys_delete_module(name_user, flags);
685 #else /* CONFIG_MODULES */
687 asmlinkage long sys32_init_module(const char __user *name_user,
688 struct module __user *mod_user)
693 asmlinkage long sys32_delete_module(const char __user *name_user)
698 #endif /* CONFIG_MODULES */
700 /* Translations due to time_t size differences. Which affects all
701 sorts of things, like timeval and itimerval. */
703 extern struct timezone sys_tz;
705 asmlinkage long sys32_gettimeofday(struct compat_timeval __user *tv,
706 struct timezone __user *tz)
710 do_gettimeofday(&ktv);
711 if (put_tv32(tv, &ktv))
715 if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
721 static inline long get_ts32(struct timespec *o, struct compat_timeval __user *i)
725 if (!access_ok(VERIFY_READ, i, sizeof(*i)))
727 if (__get_user(o->tv_sec, &i->tv_sec))
729 if (__get_user(usec, &i->tv_usec))
731 o->tv_nsec = usec * 1000;
735 asmlinkage long sys32_settimeofday(struct compat_timeval __user *tv,
736 struct timezone __user *tz)
742 if (get_ts32(&kts, tv))
746 if (copy_from_user(&ktz, tz, sizeof(ktz)))
750 return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
753 /* These are here just in case some old sparc32 binary calls it. */
754 asmlinkage long sys32_pause(void)
756 current->state = TASK_INTERRUPTIBLE;
758 return -ERESTARTNOHAND;
761 asmlinkage compat_ssize_t sys32_pread64(unsigned int fd,
767 return sys_pread64(fd, ubuf, count, (poshi << 32) | poslo);
770 asmlinkage compat_ssize_t sys32_pwrite64(unsigned int fd,
776 return sys_pwrite64(fd, ubuf, count, (poshi << 32) | poslo);
779 asmlinkage long compat_sys_readahead(int fd,
784 return sys_readahead(fd, (offhi << 32) | offlo, count);
787 long compat_sys_fadvise64(int fd,
790 compat_size_t len, int advice)
792 return sys_fadvise64_64(fd, (offhi << 32) | offlo, len, advice);
795 long compat_sys_fadvise64_64(int fd,
796 unsigned long offhi, unsigned long offlo,
797 unsigned long lenhi, unsigned long lenlo,
800 return sys_fadvise64_64(fd,
801 (offhi << 32) | offlo,
802 (lenhi << 32) | lenlo,
806 asmlinkage long compat_sys_sendfile(int out_fd, int in_fd,
807 compat_off_t __user *offset,
810 mm_segment_t old_fs = get_fs();
814 if (offset && get_user(of, offset))
818 ret = sys_sendfile(out_fd, in_fd,
819 offset ? (off_t __user *) &of : NULL,
823 if (offset && put_user(of, offset))
829 asmlinkage long compat_sys_sendfile64(int out_fd, int in_fd,
830 compat_loff_t __user *offset,
833 mm_segment_t old_fs = get_fs();
837 if (offset && get_user(lof, offset))
841 ret = sys_sendfile64(out_fd, in_fd,
842 offset ? (loff_t __user *) &lof : NULL,
846 if (offset && put_user(lof, offset))
852 /* This is just a version for 32-bit applications which does
853 * not force O_LARGEFILE on.
856 asmlinkage long sparc32_open(const char __user *filename,
859 return do_sys_open(AT_FDCWD, filename, flags, mode);
862 extern unsigned long do_mremap(unsigned long addr,
863 unsigned long old_len, unsigned long new_len,
864 unsigned long flags, unsigned long new_addr);
866 asmlinkage unsigned long sys32_mremap(unsigned long addr,
867 unsigned long old_len, unsigned long new_len,
868 unsigned long flags, u32 __new_addr)
870 unsigned long ret = -EINVAL;
871 unsigned long new_addr = __new_addr;
873 if (unlikely(sparc64_mmap_check(addr, old_len)))
875 if (unlikely(sparc64_mmap_check(new_addr, new_len)))
877 down_write(¤t->mm->mmap_sem);
878 ret = do_mremap(addr, old_len, new_len, flags, new_addr);
879 up_write(¤t->mm->mmap_sem);
884 struct __sysctl_args32 {
894 asmlinkage long sys32_sysctl(struct __sysctl_args32 __user *args)
896 #ifndef CONFIG_SYSCTL_SYSCALL
899 struct __sysctl_args32 tmp;
901 size_t oldlen, __user *oldlenp = NULL;
902 unsigned long addr = (((unsigned long)&args->__unused[0]) + 7UL) & ~7UL;
904 if (copy_from_user(&tmp, args, sizeof(tmp)))
907 if (tmp.oldval && tmp.oldlenp) {
908 /* Duh, this is ugly and might not work if sysctl_args
909 is in read-only memory, but do_sysctl does indirectly
910 a lot of uaccess in both directions and we'd have to
911 basically copy the whole sysctl.c here, and
912 glibc's __sysctl uses rw memory for the structure
914 if (get_user(oldlen, (u32 __user *)(unsigned long)tmp.oldlenp) ||
915 put_user(oldlen, (size_t __user *)addr))
917 oldlenp = (size_t __user *)addr;
921 error = do_sysctl((int __user *)(unsigned long) tmp.name,
923 (void __user *)(unsigned long) tmp.oldval,
925 (void __user *)(unsigned long) tmp.newval,
930 if (get_user(oldlen, (size_t __user *)addr) ||
931 put_user(oldlen, (u32 __user *)(unsigned long) tmp.oldlenp))
934 if (copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused)))
941 long sys32_lookup_dcookie(unsigned long cookie_high,
942 unsigned long cookie_low,
943 char __user *buf, size_t len)
945 return sys_lookup_dcookie((cookie_high << 32) | cookie_low,
949 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)
951 return sys_sync_file_range(fd,
952 (off_high << 32) | off_low,
953 (nb_high << 32) | nb_low,
957 asmlinkage long compat_sys_fallocate(int fd, int mode, u32 offhi, u32 offlo,
958 u32 lenhi, u32 lenlo)
960 return sys_fallocate(fd, mode, ((loff_t)offhi << 32) | offlo,
961 ((loff_t)lenhi << 32) | lenlo);