2 * sys_ppc32.c: Conversion between 32bit and 64bit native syscalls.
4 * Copyright (C) 2001 IBM
5 * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
6 * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
8 * These routines maintain argument size conversion between 32bit and 64bit
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License
13 * as published by the Free Software Foundation; either version
14 * 2 of the License, or (at your option) any later version.
17 #include <linux/kernel.h>
18 #include <linux/sched.h>
21 #include <linux/file.h>
22 #include <linux/signal.h>
23 #include <linux/resource.h>
24 #include <linux/times.h>
25 #include <linux/utsname.h>
26 #include <linux/smp.h>
27 #include <linux/smp_lock.h>
28 #include <linux/sem.h>
29 #include <linux/msg.h>
30 #include <linux/shm.h>
31 #include <linux/poll.h>
32 #include <linux/personality.h>
33 #include <linux/stat.h>
34 #include <linux/mman.h>
36 #include <linux/syscalls.h>
37 #include <linux/unistd.h>
38 #include <linux/sysctl.h>
39 #include <linux/binfmts.h>
40 #include <linux/security.h>
41 #include <linux/compat.h>
42 #include <linux/ptrace.h>
43 #include <linux/elf.h>
45 #include <asm/ptrace.h>
46 #include <asm/types.h>
48 #include <asm/uaccess.h>
49 #include <asm/unistd.h>
50 #include <asm/semaphore.h>
52 #include <asm/mmu_context.h>
53 #include <asm/ppc-pci.h>
55 /* readdir & getdents */
56 #define NAME_OFFSET(de) ((int) ((de)->d_name - (char __user *) (de)))
57 #define ROUND_UP(x) (((x)+sizeof(u32)-1) & ~(sizeof(u32)-1))
59 struct old_linux_dirent32 {
62 unsigned short d_namlen;
66 struct readdir_callback32 {
67 struct old_linux_dirent32 __user * dirent;
71 static int fillonedir(void * __buf, const char * name, int namlen,
72 off_t offset, u64 ino, unsigned int d_type)
74 struct readdir_callback32 * buf = (struct readdir_callback32 *) __buf;
75 struct old_linux_dirent32 __user * dirent;
81 if (sizeof(d_ino) < sizeof(ino) && d_ino != ino)
85 put_user(d_ino, &dirent->d_ino);
86 put_user(offset, &dirent->d_offset);
87 put_user(namlen, &dirent->d_namlen);
88 copy_to_user(dirent->d_name, name, namlen);
89 put_user(0, dirent->d_name + namlen);
93 asmlinkage int old32_readdir(unsigned int fd, struct old_linux_dirent32 __user *dirent, unsigned int count)
97 struct readdir_callback32 buf;
106 error = vfs_readdir(file, (filldir_t)fillonedir, &buf);
117 asmlinkage long ppc32_select(u32 n, compat_ulong_t __user *inp,
118 compat_ulong_t __user *outp, compat_ulong_t __user *exp,
122 return compat_sys_select((int)n, inp, outp, exp, compat_ptr(tvp_x));
125 int cp_compat_stat(struct kstat *stat, struct compat_stat __user *statbuf)
130 if (stat->size > MAX_NON_LFS || !new_valid_dev(stat->dev) ||
131 !new_valid_dev(stat->rdev))
135 if (sizeof(ino) < sizeof(stat->ino) && ino != stat->ino)
138 err = access_ok(VERIFY_WRITE, statbuf, sizeof(*statbuf)) ? 0 : -EFAULT;
139 err |= __put_user(new_encode_dev(stat->dev), &statbuf->st_dev);
140 err |= __put_user(ino, &statbuf->st_ino);
141 err |= __put_user(stat->mode, &statbuf->st_mode);
142 err |= __put_user(stat->nlink, &statbuf->st_nlink);
143 err |= __put_user(stat->uid, &statbuf->st_uid);
144 err |= __put_user(stat->gid, &statbuf->st_gid);
145 err |= __put_user(new_encode_dev(stat->rdev), &statbuf->st_rdev);
146 err |= __put_user(stat->size, &statbuf->st_size);
147 err |= __put_user(stat->atime.tv_sec, &statbuf->st_atime);
148 err |= __put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec);
149 err |= __put_user(stat->mtime.tv_sec, &statbuf->st_mtime);
150 err |= __put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec);
151 err |= __put_user(stat->ctime.tv_sec, &statbuf->st_ctime);
152 err |= __put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec);
153 err |= __put_user(stat->blksize, &statbuf->st_blksize);
154 err |= __put_user(stat->blocks, &statbuf->st_blocks);
155 err |= __put_user(0, &statbuf->__unused4[0]);
156 err |= __put_user(0, &statbuf->__unused4[1]);
161 /* Note: it is necessary to treat option as an unsigned int,
162 * with the corresponding cast to a signed int to insure that the
163 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
164 * and the register representation of a signed int (msr in 64-bit mode) is performed.
166 asmlinkage long compat_sys_sysfs(u32 option, u32 arg1, u32 arg2)
168 return sys_sysfs((int)option, arg1, arg2);
171 asmlinkage long compat_sys_pause(void)
173 current->state = TASK_INTERRUPTIBLE;
176 return -ERESTARTNOHAND;
179 static inline long get_ts32(struct timespec *o, struct compat_timeval __user *i)
183 if (!access_ok(VERIFY_READ, i, sizeof(*i)))
185 if (__get_user(o->tv_sec, &i->tv_sec))
187 if (__get_user(usec, &i->tv_usec))
189 o->tv_nsec = usec * 1000;
193 static inline long put_tv32(struct compat_timeval __user *o, struct timeval *i)
195 return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
196 (__put_user(i->tv_sec, &o->tv_sec) |
197 __put_user(i->tv_usec, &o->tv_usec)));
209 unsigned short procs;
214 char _f[20-2*sizeof(int)-sizeof(int)];
217 asmlinkage long compat_sys_sysinfo(struct sysinfo32 __user *info)
222 mm_segment_t old_fs = get_fs ();
224 /* The __user cast is valid due to set_fs() */
226 ret = sys_sysinfo((struct sysinfo __user *)&s);
229 /* Check to see if any memory value is too large for 32-bit and
230 * scale down if needed.
232 if ((s.totalram >> 32) || (s.totalswap >> 32)) {
233 while (s.mem_unit < PAGE_SIZE) {
237 s.totalram >>=bitcount;
238 s.freeram >>= bitcount;
239 s.sharedram >>= bitcount;
240 s.bufferram >>= bitcount;
241 s.totalswap >>= bitcount;
242 s.freeswap >>= bitcount;
243 s.totalhigh >>= bitcount;
244 s.freehigh >>= bitcount;
247 err = put_user (s.uptime, &info->uptime);
248 err |= __put_user (s.loads[0], &info->loads[0]);
249 err |= __put_user (s.loads[1], &info->loads[1]);
250 err |= __put_user (s.loads[2], &info->loads[2]);
251 err |= __put_user (s.totalram, &info->totalram);
252 err |= __put_user (s.freeram, &info->freeram);
253 err |= __put_user (s.sharedram, &info->sharedram);
254 err |= __put_user (s.bufferram, &info->bufferram);
255 err |= __put_user (s.totalswap, &info->totalswap);
256 err |= __put_user (s.freeswap, &info->freeswap);
257 err |= __put_user (s.procs, &info->procs);
258 err |= __put_user (s.totalhigh, &info->totalhigh);
259 err |= __put_user (s.freehigh, &info->freehigh);
260 err |= __put_user (s.mem_unit, &info->mem_unit);
270 /* Translations due to time_t size differences. Which affects all
271 sorts of things, like timeval and itimerval. */
272 extern struct timezone sys_tz;
274 asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
278 do_gettimeofday(&ktv);
279 if (put_tv32(tv, &ktv))
283 if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
292 asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
298 if (get_ts32(&kts, tv))
302 if (copy_from_user(&ktz, tz, sizeof(ktz)))
306 return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
309 #ifdef CONFIG_SYSVIPC
310 long compat_sys_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr,
315 version = call >> 16; /* hack for backward compatibility */
322 /* sign extend semid */
323 return compat_sys_semtimedop((int)first,
324 compat_ptr(ptr), second,
326 /* else fall through for normal semop() */
328 /* struct sembuf is the same on 32 and 64bit :)) */
329 /* sign extend semid */
330 return sys_semtimedop((int)first, compat_ptr(ptr), second,
333 /* sign extend key, nsems */
334 return sys_semget((int)first, (int)second, third);
336 /* sign extend semid, semnum */
337 return compat_sys_semctl((int)first, (int)second, third,
341 /* sign extend msqid */
342 return compat_sys_msgsnd((int)first, (int)second, third,
345 /* sign extend msqid, msgtyp */
346 return compat_sys_msgrcv((int)first, second, (int)fifth,
347 third, version, compat_ptr(ptr));
349 /* sign extend key */
350 return sys_msgget((int)first, second);
352 /* sign extend msqid */
353 return compat_sys_msgctl((int)first, second, compat_ptr(ptr));
356 /* sign extend shmid */
357 return compat_sys_shmat((int)first, second, third, version,
360 return sys_shmdt(compat_ptr(ptr));
362 /* sign extend key_t */
363 return sys_shmget((int)first, second, third);
365 /* sign extend shmid */
366 return compat_sys_shmctl((int)first, second, compat_ptr(ptr));
376 /* Note: it is necessary to treat out_fd and in_fd as unsigned ints,
377 * with the corresponding cast to a signed int to insure that the
378 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
379 * and the register representation of a signed int (msr in 64-bit mode) is performed.
381 asmlinkage long compat_sys_sendfile(u32 out_fd, u32 in_fd, compat_off_t __user * offset, u32 count)
383 mm_segment_t old_fs = get_fs();
388 if (offset && get_user(of, offset))
391 /* The __user pointer cast is valid because of the set_fs() */
393 up = offset ? (off_t __user *) &of : NULL;
394 ret = sys_sendfile((int)out_fd, (int)in_fd, up, count);
397 if (offset && put_user(of, offset))
403 asmlinkage int compat_sys_sendfile64(int out_fd, int in_fd, compat_loff_t __user *offset, s32 count)
405 mm_segment_t old_fs = get_fs();
410 if (offset && get_user(lof, offset))
413 /* The __user pointer cast is valid because of the set_fs() */
415 up = offset ? (loff_t __user *) &lof : NULL;
416 ret = sys_sendfile64(out_fd, in_fd, up, count);
419 if (offset && put_user(lof, offset))
425 long compat_sys_execve(unsigned long a0, unsigned long a1, unsigned long a2,
426 unsigned long a3, unsigned long a4, unsigned long a5,
427 struct pt_regs *regs)
432 filename = getname((char __user *) a0);
433 error = PTR_ERR(filename);
434 if (IS_ERR(filename))
436 flush_fp_to_thread(current);
437 flush_altivec_to_thread(current);
439 error = compat_do_execve(filename, compat_ptr(a1), compat_ptr(a2), regs);
447 /* Note: it is necessary to treat option as an unsigned int,
448 * with the corresponding cast to a signed int to insure that the
449 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
450 * and the register representation of a signed int (msr in 64-bit mode) is performed.
452 asmlinkage long compat_sys_prctl(u32 option, u32 arg2, u32 arg3, u32 arg4, u32 arg5)
454 return sys_prctl((int)option,
455 (unsigned long) arg2,
456 (unsigned long) arg3,
457 (unsigned long) arg4,
458 (unsigned long) arg5);
461 /* Note: it is necessary to treat pid as an unsigned int,
462 * with the corresponding cast to a signed int to insure that the
463 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
464 * and the register representation of a signed int (msr in 64-bit mode) is performed.
466 asmlinkage long compat_sys_sched_rr_get_interval(u32 pid, struct compat_timespec __user *interval)
470 mm_segment_t old_fs = get_fs ();
472 /* The __user pointer cast is valid because of the set_fs() */
474 ret = sys_sched_rr_get_interval((int)pid, (struct timespec __user *) &t);
476 if (put_compat_timespec(&t, interval))
481 /* Note: it is necessary to treat mode as an unsigned int,
482 * with the corresponding cast to a signed int to insure that the
483 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
484 * and the register representation of a signed int (msr in 64-bit mode) is performed.
486 asmlinkage long compat_sys_access(const char __user * filename, u32 mode)
488 return sys_access(filename, (int)mode);
492 /* Note: it is necessary to treat mode as an unsigned int,
493 * with the corresponding cast to a signed int to insure that the
494 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
495 * and the register representation of a signed int (msr in 64-bit mode) is performed.
497 asmlinkage long compat_sys_creat(const char __user * pathname, u32 mode)
499 return sys_creat(pathname, (int)mode);
503 /* Note: it is necessary to treat pid and options as unsigned ints,
504 * with the corresponding cast to a signed int to insure that the
505 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
506 * and the register representation of a signed int (msr in 64-bit mode) is performed.
508 asmlinkage long compat_sys_waitpid(u32 pid, unsigned int __user * stat_addr, u32 options)
510 return sys_waitpid((int)pid, stat_addr, (int)options);
514 /* Note: it is necessary to treat gidsetsize as an unsigned int,
515 * with the corresponding cast to a signed int to insure that the
516 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
517 * and the register representation of a signed int (msr in 64-bit mode) is performed.
519 asmlinkage long compat_sys_getgroups(u32 gidsetsize, gid_t __user *grouplist)
521 return sys_getgroups((int)gidsetsize, grouplist);
525 /* Note: it is necessary to treat pid as an unsigned int,
526 * with the corresponding cast to a signed int to insure that the
527 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
528 * and the register representation of a signed int (msr in 64-bit mode) is performed.
530 asmlinkage long compat_sys_getpgid(u32 pid)
532 return sys_getpgid((int)pid);
537 /* Note: it is necessary to treat pid as an unsigned int,
538 * with the corresponding cast to a signed int to insure that the
539 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
540 * and the register representation of a signed int (msr in 64-bit mode) is performed.
542 asmlinkage long compat_sys_getsid(u32 pid)
544 return sys_getsid((int)pid);
548 /* Note: it is necessary to treat pid and sig as unsigned ints,
549 * with the corresponding cast to a signed int to insure that the
550 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
551 * and the register representation of a signed int (msr in 64-bit mode) is performed.
553 asmlinkage long compat_sys_kill(u32 pid, u32 sig)
555 return sys_kill((int)pid, (int)sig);
559 /* Note: it is necessary to treat mode as an unsigned int,
560 * with the corresponding cast to a signed int to insure that the
561 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
562 * and the register representation of a signed int (msr in 64-bit mode) is performed.
564 asmlinkage long compat_sys_mkdir(const char __user * pathname, u32 mode)
566 return sys_mkdir(pathname, (int)mode);
569 long compat_sys_nice(u32 increment)
571 /* sign extend increment */
572 return sys_nice((int)increment);
575 off_t ppc32_lseek(unsigned int fd, u32 offset, unsigned int origin)
578 return sys_lseek(fd, (int)offset, origin);
581 /* Note: it is necessary to treat bufsiz as an unsigned int,
582 * with the corresponding cast to a signed int to insure that the
583 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
584 * and the register representation of a signed int (msr in 64-bit mode) is performed.
586 asmlinkage long compat_sys_readlink(const char __user * path, char __user * buf, u32 bufsiz)
588 return sys_readlink(path, buf, (int)bufsiz);
591 /* Note: it is necessary to treat option as an unsigned int,
592 * with the corresponding cast to a signed int to insure that the
593 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
594 * and the register representation of a signed int (msr in 64-bit mode) is performed.
596 asmlinkage long compat_sys_sched_get_priority_max(u32 policy)
598 return sys_sched_get_priority_max((int)policy);
602 /* Note: it is necessary to treat policy as an unsigned int,
603 * with the corresponding cast to a signed int to insure that the
604 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
605 * and the register representation of a signed int (msr in 64-bit mode) is performed.
607 asmlinkage long compat_sys_sched_get_priority_min(u32 policy)
609 return sys_sched_get_priority_min((int)policy);
613 /* Note: it is necessary to treat pid as an unsigned int,
614 * with the corresponding cast to a signed int to insure that the
615 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
616 * and the register representation of a signed int (msr in 64-bit mode) is performed.
618 asmlinkage long compat_sys_sched_getparam(u32 pid, struct sched_param __user *param)
620 return sys_sched_getparam((int)pid, param);
624 /* Note: it is necessary to treat pid as an unsigned int,
625 * with the corresponding cast to a signed int to insure that the
626 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
627 * and the register representation of a signed int (msr in 64-bit mode) is performed.
629 asmlinkage long compat_sys_sched_getscheduler(u32 pid)
631 return sys_sched_getscheduler((int)pid);
635 /* Note: it is necessary to treat pid as an unsigned int,
636 * with the corresponding cast to a signed int to insure that the
637 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
638 * and the register representation of a signed int (msr in 64-bit mode) is performed.
640 asmlinkage long compat_sys_sched_setparam(u32 pid, struct sched_param __user *param)
642 return sys_sched_setparam((int)pid, param);
646 /* Note: it is necessary to treat pid and policy as unsigned ints,
647 * with the corresponding cast to a signed int to insure that the
648 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
649 * and the register representation of a signed int (msr in 64-bit mode) is performed.
651 asmlinkage long compat_sys_sched_setscheduler(u32 pid, u32 policy, struct sched_param __user *param)
653 return sys_sched_setscheduler((int)pid, (int)policy, param);
657 /* Note: it is necessary to treat len as an unsigned int,
658 * with the corresponding cast to a signed int to insure that the
659 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
660 * and the register representation of a signed int (msr in 64-bit mode) is performed.
662 asmlinkage long compat_sys_setdomainname(char __user *name, u32 len)
664 return sys_setdomainname(name, (int)len);
668 /* Note: it is necessary to treat gidsetsize as an unsigned int,
669 * with the corresponding cast to a signed int to insure that the
670 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
671 * and the register representation of a signed int (msr in 64-bit mode) is performed.
673 asmlinkage long compat_sys_setgroups(u32 gidsetsize, gid_t __user *grouplist)
675 return sys_setgroups((int)gidsetsize, grouplist);
679 asmlinkage long compat_sys_sethostname(char __user *name, u32 len)
681 /* sign extend len */
682 return sys_sethostname(name, (int)len);
686 /* Note: it is necessary to treat pid and pgid as unsigned ints,
687 * with the corresponding cast to a signed int to insure that the
688 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
689 * and the register representation of a signed int (msr in 64-bit mode) is performed.
691 asmlinkage long compat_sys_setpgid(u32 pid, u32 pgid)
693 return sys_setpgid((int)pid, (int)pgid);
696 long compat_sys_getpriority(u32 which, u32 who)
698 /* sign extend which and who */
699 return sys_getpriority((int)which, (int)who);
702 long compat_sys_setpriority(u32 which, u32 who, u32 niceval)
704 /* sign extend which, who and niceval */
705 return sys_setpriority((int)which, (int)who, (int)niceval);
708 long compat_sys_ioprio_get(u32 which, u32 who)
710 /* sign extend which and who */
711 return sys_ioprio_get((int)which, (int)who);
714 long compat_sys_ioprio_set(u32 which, u32 who, u32 ioprio)
716 /* sign extend which, who and ioprio */
717 return sys_ioprio_set((int)which, (int)who, (int)ioprio);
720 /* Note: it is necessary to treat newmask as an unsigned int,
721 * with the corresponding cast to a signed int to insure that the
722 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
723 * and the register representation of a signed int (msr in 64-bit mode) is performed.
725 asmlinkage long compat_sys_ssetmask(u32 newmask)
727 return sys_ssetmask((int) newmask);
730 asmlinkage long compat_sys_syslog(u32 type, char __user * buf, u32 len)
732 /* sign extend len */
733 return sys_syslog(type, buf, (int)len);
737 /* Note: it is necessary to treat mask as an unsigned int,
738 * with the corresponding cast to a signed int to insure that the
739 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
740 * and the register representation of a signed int (msr in 64-bit mode) is performed.
742 asmlinkage long compat_sys_umask(u32 mask)
744 return sys_umask((int)mask);
748 struct __sysctl_args32 {
758 asmlinkage long compat_sys_sysctl(struct __sysctl_args32 __user *args)
760 struct __sysctl_args32 tmp;
763 size_t __user *oldlenp = NULL;
764 unsigned long addr = (((unsigned long)&args->__unused[0]) + 7) & ~7;
766 if (copy_from_user(&tmp, args, sizeof(tmp)))
769 if (tmp.oldval && tmp.oldlenp) {
770 /* Duh, this is ugly and might not work if sysctl_args
771 is in read-only memory, but do_sysctl does indirectly
772 a lot of uaccess in both directions and we'd have to
773 basically copy the whole sysctl.c here, and
774 glibc's __sysctl uses rw memory for the structure
776 oldlenp = (size_t __user *)addr;
777 if (get_user(oldlen, (compat_size_t __user *)compat_ptr(tmp.oldlenp)) ||
778 put_user(oldlen, oldlenp))
783 error = do_sysctl(compat_ptr(tmp.name), tmp.nlen,
784 compat_ptr(tmp.oldval), oldlenp,
785 compat_ptr(tmp.newval), tmp.newlen);
789 if (get_user(oldlen, oldlenp) ||
790 put_user(oldlen, (compat_size_t __user *)compat_ptr(tmp.oldlenp)))
793 copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused));
799 unsigned long compat_sys_mmap2(unsigned long addr, size_t len,
800 unsigned long prot, unsigned long flags,
801 unsigned long fd, unsigned long pgoff)
803 /* This should remain 12 even if PAGE_SIZE changes */
804 return sys_mmap(addr, len, prot, flags, fd, pgoff << 12);
807 long compat_sys_tgkill(u32 tgid, u32 pid, int sig)
809 /* sign extend tgid, pid */
810 return sys_tgkill((int)tgid, (int)pid, sig);
815 * The 32 bit ABI passes long longs in an odd even register pair.
818 compat_ssize_t compat_sys_pread64(unsigned int fd, char __user *ubuf, compat_size_t count,
819 u32 reg6, u32 poshi, u32 poslo)
821 return sys_pread64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo);
824 compat_ssize_t compat_sys_pwrite64(unsigned int fd, char __user *ubuf, compat_size_t count,
825 u32 reg6, u32 poshi, u32 poslo)
827 return sys_pwrite64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo);
830 compat_ssize_t compat_sys_readahead(int fd, u32 r4, u32 offhi, u32 offlo, u32 count)
832 return sys_readahead(fd, ((loff_t)offhi << 32) | offlo, count);
835 asmlinkage int compat_sys_truncate64(const char __user * path, u32 reg4,
836 unsigned long high, unsigned long low)
838 return sys_truncate(path, (high << 32) | low);
841 asmlinkage int compat_sys_ftruncate64(unsigned int fd, u32 reg4, unsigned long high,
844 return sys_ftruncate(fd, (high << 32) | low);
847 long ppc32_lookup_dcookie(u32 cookie_high, u32 cookie_low, char __user *buf,
850 return sys_lookup_dcookie((u64)cookie_high << 32 | cookie_low,
854 long ppc32_fadvise64(int fd, u32 unused, u32 offset_high, u32 offset_low,
855 size_t len, int advice)
857 return sys_fadvise64(fd, (u64)offset_high << 32 | offset_low, len,
861 asmlinkage long compat_sys_add_key(const char __user *_type,
862 const char __user *_description,
863 const void __user *_payload,
867 return sys_add_key(_type, _description, _payload, plen, ringid);
870 asmlinkage long compat_sys_request_key(const char __user *_type,
871 const char __user *_description,
872 const char __user *_callout_info,
875 return sys_request_key(_type, _description, _callout_info, destringid);