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/config.h>
18 #include <linux/kernel.h>
19 #include <linux/sched.h>
22 #include <linux/file.h>
23 #include <linux/signal.h>
24 #include <linux/resource.h>
25 #include <linux/times.h>
26 #include <linux/utsname.h>
27 #include <linux/smp.h>
28 #include <linux/smp_lock.h>
29 #include <linux/sem.h>
30 #include <linux/msg.h>
31 #include <linux/shm.h>
32 #include <linux/poll.h>
33 #include <linux/personality.h>
34 #include <linux/stat.h>
35 #include <linux/mman.h>
37 #include <linux/syscalls.h>
38 #include <linux/unistd.h>
39 #include <linux/sysctl.h>
40 #include <linux/binfmts.h>
41 #include <linux/security.h>
42 #include <linux/compat.h>
43 #include <linux/ptrace.h>
44 #include <linux/elf.h>
46 #include <asm/ptrace.h>
47 #include <asm/types.h>
49 #include <asm/uaccess.h>
50 #include <asm/unistd.h>
51 #include <asm/semaphore.h>
53 #include <asm/mmu_context.h>
54 #include <asm/ppc-pci.h>
56 /* readdir & getdents */
57 #define NAME_OFFSET(de) ((int) ((de)->d_name - (char __user *) (de)))
58 #define ROUND_UP(x) (((x)+sizeof(u32)-1) & ~(sizeof(u32)-1))
60 struct old_linux_dirent32 {
63 unsigned short d_namlen;
67 struct readdir_callback32 {
68 struct old_linux_dirent32 __user * dirent;
72 static int fillonedir(void * __buf, const char * name, int namlen,
73 off_t offset, ino_t ino, unsigned int d_type)
75 struct readdir_callback32 * buf = (struct readdir_callback32 *) __buf;
76 struct old_linux_dirent32 __user * dirent;
82 put_user(ino, &dirent->d_ino);
83 put_user(offset, &dirent->d_offset);
84 put_user(namlen, &dirent->d_namlen);
85 copy_to_user(dirent->d_name, name, namlen);
86 put_user(0, dirent->d_name + namlen);
90 asmlinkage int old32_readdir(unsigned int fd, struct old_linux_dirent32 __user *dirent, unsigned int count)
94 struct readdir_callback32 buf;
103 error = vfs_readdir(file, (filldir_t)fillonedir, &buf);
114 asmlinkage long ppc32_select(u32 n, compat_ulong_t __user *inp,
115 compat_ulong_t __user *outp, compat_ulong_t __user *exp,
119 return compat_sys_select((int)n, inp, outp, exp, compat_ptr(tvp_x));
122 int cp_compat_stat(struct kstat *stat, struct compat_stat __user *statbuf)
126 if (stat->size > MAX_NON_LFS || !new_valid_dev(stat->dev) ||
127 !new_valid_dev(stat->rdev))
130 err = access_ok(VERIFY_WRITE, statbuf, sizeof(*statbuf)) ? 0 : -EFAULT;
131 err |= __put_user(new_encode_dev(stat->dev), &statbuf->st_dev);
132 err |= __put_user(stat->ino, &statbuf->st_ino);
133 err |= __put_user(stat->mode, &statbuf->st_mode);
134 err |= __put_user(stat->nlink, &statbuf->st_nlink);
135 err |= __put_user(stat->uid, &statbuf->st_uid);
136 err |= __put_user(stat->gid, &statbuf->st_gid);
137 err |= __put_user(new_encode_dev(stat->rdev), &statbuf->st_rdev);
138 err |= __put_user(stat->size, &statbuf->st_size);
139 err |= __put_user(stat->atime.tv_sec, &statbuf->st_atime);
140 err |= __put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec);
141 err |= __put_user(stat->mtime.tv_sec, &statbuf->st_mtime);
142 err |= __put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec);
143 err |= __put_user(stat->ctime.tv_sec, &statbuf->st_ctime);
144 err |= __put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec);
145 err |= __put_user(stat->blksize, &statbuf->st_blksize);
146 err |= __put_user(stat->blocks, &statbuf->st_blocks);
147 err |= __put_user(0, &statbuf->__unused4[0]);
148 err |= __put_user(0, &statbuf->__unused4[1]);
153 /* Note: it is necessary to treat option as an unsigned int,
154 * with the corresponding cast to a signed int to insure that the
155 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
156 * and the register representation of a signed int (msr in 64-bit mode) is performed.
158 asmlinkage long compat_sys_sysfs(u32 option, u32 arg1, u32 arg2)
160 return sys_sysfs((int)option, arg1, arg2);
163 asmlinkage long compat_sys_pause(void)
165 current->state = TASK_INTERRUPTIBLE;
168 return -ERESTARTNOHAND;
171 static inline long get_ts32(struct timespec *o, struct compat_timeval __user *i)
175 if (!access_ok(VERIFY_READ, i, sizeof(*i)))
177 if (__get_user(o->tv_sec, &i->tv_sec))
179 if (__get_user(usec, &i->tv_usec))
181 o->tv_nsec = usec * 1000;
185 static inline long put_tv32(struct compat_timeval __user *o, struct timeval *i)
187 return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
188 (__put_user(i->tv_sec, &o->tv_sec) |
189 __put_user(i->tv_usec, &o->tv_usec)));
201 unsigned short procs;
206 char _f[20-2*sizeof(int)-sizeof(int)];
209 asmlinkage long compat_sys_sysinfo(struct sysinfo32 __user *info)
214 mm_segment_t old_fs = get_fs ();
216 /* The __user cast is valid due to set_fs() */
218 ret = sys_sysinfo((struct sysinfo __user *)&s);
221 /* Check to see if any memory value is too large for 32-bit and
222 * scale down if needed.
224 if ((s.totalram >> 32) || (s.totalswap >> 32)) {
225 while (s.mem_unit < PAGE_SIZE) {
229 s.totalram >>=bitcount;
230 s.freeram >>= bitcount;
231 s.sharedram >>= bitcount;
232 s.bufferram >>= bitcount;
233 s.totalswap >>= bitcount;
234 s.freeswap >>= bitcount;
235 s.totalhigh >>= bitcount;
236 s.freehigh >>= bitcount;
239 err = put_user (s.uptime, &info->uptime);
240 err |= __put_user (s.loads[0], &info->loads[0]);
241 err |= __put_user (s.loads[1], &info->loads[1]);
242 err |= __put_user (s.loads[2], &info->loads[2]);
243 err |= __put_user (s.totalram, &info->totalram);
244 err |= __put_user (s.freeram, &info->freeram);
245 err |= __put_user (s.sharedram, &info->sharedram);
246 err |= __put_user (s.bufferram, &info->bufferram);
247 err |= __put_user (s.totalswap, &info->totalswap);
248 err |= __put_user (s.freeswap, &info->freeswap);
249 err |= __put_user (s.procs, &info->procs);
250 err |= __put_user (s.totalhigh, &info->totalhigh);
251 err |= __put_user (s.freehigh, &info->freehigh);
252 err |= __put_user (s.mem_unit, &info->mem_unit);
262 /* Translations due to time_t size differences. Which affects all
263 sorts of things, like timeval and itimerval. */
264 extern struct timezone sys_tz;
266 asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
270 do_gettimeofday(&ktv);
271 if (put_tv32(tv, &ktv))
275 if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
284 asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
290 if (get_ts32(&kts, tv))
294 if (copy_from_user(&ktz, tz, sizeof(ktz)))
298 return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
301 #ifdef CONFIG_SYSVIPC
302 long compat_sys_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr,
307 version = call >> 16; /* hack for backward compatibility */
314 /* sign extend semid */
315 return compat_sys_semtimedop((int)first,
316 compat_ptr(ptr), second,
318 /* else fall through for normal semop() */
320 /* struct sembuf is the same on 32 and 64bit :)) */
321 /* sign extend semid */
322 return sys_semtimedop((int)first, compat_ptr(ptr), second,
325 /* sign extend key, nsems */
326 return sys_semget((int)first, (int)second, third);
328 /* sign extend semid, semnum */
329 return compat_sys_semctl((int)first, (int)second, third,
333 /* sign extend msqid */
334 return compat_sys_msgsnd((int)first, (int)second, third,
337 /* sign extend msqid, msgtyp */
338 return compat_sys_msgrcv((int)first, second, (int)fifth,
339 third, version, compat_ptr(ptr));
341 /* sign extend key */
342 return sys_msgget((int)first, second);
344 /* sign extend msqid */
345 return compat_sys_msgctl((int)first, second, compat_ptr(ptr));
348 /* sign extend shmid */
349 return compat_sys_shmat((int)first, second, third, version,
352 return sys_shmdt(compat_ptr(ptr));
354 /* sign extend key_t */
355 return sys_shmget((int)first, second, third);
357 /* sign extend shmid */
358 return compat_sys_shmctl((int)first, second, compat_ptr(ptr));
368 /* Note: it is necessary to treat out_fd and in_fd as unsigned ints,
369 * with the corresponding cast to a signed int to insure that the
370 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
371 * and the register representation of a signed int (msr in 64-bit mode) is performed.
373 asmlinkage long compat_sys_sendfile(u32 out_fd, u32 in_fd, compat_off_t __user * offset, u32 count)
375 mm_segment_t old_fs = get_fs();
380 if (offset && get_user(of, offset))
383 /* The __user pointer cast is valid because of the set_fs() */
385 up = offset ? (off_t __user *) &of : NULL;
386 ret = sys_sendfile((int)out_fd, (int)in_fd, up, count);
389 if (offset && put_user(of, offset))
395 asmlinkage int compat_sys_sendfile64(int out_fd, int in_fd, compat_loff_t __user *offset, s32 count)
397 mm_segment_t old_fs = get_fs();
402 if (offset && get_user(lof, offset))
405 /* The __user pointer cast is valid because of the set_fs() */
407 up = offset ? (loff_t __user *) &lof : NULL;
408 ret = sys_sendfile64(out_fd, in_fd, up, count);
411 if (offset && put_user(lof, offset))
417 long compat_sys_execve(unsigned long a0, unsigned long a1, unsigned long a2,
418 unsigned long a3, unsigned long a4, unsigned long a5,
419 struct pt_regs *regs)
424 filename = getname((char __user *) a0);
425 error = PTR_ERR(filename);
426 if (IS_ERR(filename))
428 flush_fp_to_thread(current);
429 flush_altivec_to_thread(current);
431 error = compat_do_execve(filename, compat_ptr(a1), compat_ptr(a2), regs);
435 current->ptrace &= ~PT_DTRACE;
436 task_unlock(current);
444 /* Note: it is necessary to treat option as an unsigned int,
445 * with the corresponding cast to a signed int to insure that the
446 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
447 * and the register representation of a signed int (msr in 64-bit mode) is performed.
449 asmlinkage long compat_sys_prctl(u32 option, u32 arg2, u32 arg3, u32 arg4, u32 arg5)
451 return sys_prctl((int)option,
452 (unsigned long) arg2,
453 (unsigned long) arg3,
454 (unsigned long) arg4,
455 (unsigned long) arg5);
458 /* Note: it is necessary to treat pid as an unsigned int,
459 * with the corresponding cast to a signed int to insure that the
460 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
461 * and the register representation of a signed int (msr in 64-bit mode) is performed.
463 asmlinkage long compat_sys_sched_rr_get_interval(u32 pid, struct compat_timespec __user *interval)
467 mm_segment_t old_fs = get_fs ();
469 /* The __user pointer cast is valid because of the set_fs() */
471 ret = sys_sched_rr_get_interval((int)pid, (struct timespec __user *) &t);
473 if (put_compat_timespec(&t, interval))
478 /* Note: it is necessary to treat mode as an unsigned int,
479 * with the corresponding cast to a signed int to insure that the
480 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
481 * and the register representation of a signed int (msr in 64-bit mode) is performed.
483 asmlinkage long compat_sys_access(const char __user * filename, u32 mode)
485 return sys_access(filename, (int)mode);
489 /* Note: it is necessary to treat mode as an unsigned int,
490 * with the corresponding cast to a signed int to insure that the
491 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
492 * and the register representation of a signed int (msr in 64-bit mode) is performed.
494 asmlinkage long compat_sys_creat(const char __user * pathname, u32 mode)
496 return sys_creat(pathname, (int)mode);
500 /* Note: it is necessary to treat pid and options as unsigned ints,
501 * with the corresponding cast to a signed int to insure that the
502 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
503 * and the register representation of a signed int (msr in 64-bit mode) is performed.
505 asmlinkage long compat_sys_waitpid(u32 pid, unsigned int __user * stat_addr, u32 options)
507 return sys_waitpid((int)pid, stat_addr, (int)options);
511 /* Note: it is necessary to treat gidsetsize as an unsigned int,
512 * with the corresponding cast to a signed int to insure that the
513 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
514 * and the register representation of a signed int (msr in 64-bit mode) is performed.
516 asmlinkage long compat_sys_getgroups(u32 gidsetsize, gid_t __user *grouplist)
518 return sys_getgroups((int)gidsetsize, grouplist);
522 /* Note: it is necessary to treat pid as an unsigned int,
523 * with the corresponding cast to a signed int to insure that the
524 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
525 * and the register representation of a signed int (msr in 64-bit mode) is performed.
527 asmlinkage long compat_sys_getpgid(u32 pid)
529 return sys_getpgid((int)pid);
534 /* Note: it is necessary to treat pid as an unsigned int,
535 * with the corresponding cast to a signed int to insure that the
536 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
537 * and the register representation of a signed int (msr in 64-bit mode) is performed.
539 asmlinkage long compat_sys_getsid(u32 pid)
541 return sys_getsid((int)pid);
545 /* Note: it is necessary to treat pid and sig as unsigned ints,
546 * with the corresponding cast to a signed int to insure that the
547 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
548 * and the register representation of a signed int (msr in 64-bit mode) is performed.
550 asmlinkage long compat_sys_kill(u32 pid, u32 sig)
552 return sys_kill((int)pid, (int)sig);
556 /* Note: it is necessary to treat mode as an unsigned int,
557 * with the corresponding cast to a signed int to insure that the
558 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
559 * and the register representation of a signed int (msr in 64-bit mode) is performed.
561 asmlinkage long compat_sys_mkdir(const char __user * pathname, u32 mode)
563 return sys_mkdir(pathname, (int)mode);
566 long compat_sys_nice(u32 increment)
568 /* sign extend increment */
569 return sys_nice((int)increment);
572 off_t ppc32_lseek(unsigned int fd, u32 offset, unsigned int origin)
575 return sys_lseek(fd, (int)offset, origin);
578 /* Note: it is necessary to treat bufsiz as an unsigned int,
579 * with the corresponding cast to a signed int to insure that the
580 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
581 * and the register representation of a signed int (msr in 64-bit mode) is performed.
583 asmlinkage long compat_sys_readlink(const char __user * path, char __user * buf, u32 bufsiz)
585 return sys_readlink(path, buf, (int)bufsiz);
588 /* Note: it is necessary to treat option as an unsigned int,
589 * with the corresponding cast to a signed int to insure that the
590 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
591 * and the register representation of a signed int (msr in 64-bit mode) is performed.
593 asmlinkage long compat_sys_sched_get_priority_max(u32 policy)
595 return sys_sched_get_priority_max((int)policy);
599 /* Note: it is necessary to treat policy as an unsigned int,
600 * with the corresponding cast to a signed int to insure that the
601 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
602 * and the register representation of a signed int (msr in 64-bit mode) is performed.
604 asmlinkage long compat_sys_sched_get_priority_min(u32 policy)
606 return sys_sched_get_priority_min((int)policy);
610 /* Note: it is necessary to treat pid as an unsigned int,
611 * with the corresponding cast to a signed int to insure that the
612 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
613 * and the register representation of a signed int (msr in 64-bit mode) is performed.
615 asmlinkage long compat_sys_sched_getparam(u32 pid, struct sched_param __user *param)
617 return sys_sched_getparam((int)pid, param);
621 /* Note: it is necessary to treat pid as an unsigned int,
622 * with the corresponding cast to a signed int to insure that the
623 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
624 * and the register representation of a signed int (msr in 64-bit mode) is performed.
626 asmlinkage long compat_sys_sched_getscheduler(u32 pid)
628 return sys_sched_getscheduler((int)pid);
632 /* Note: it is necessary to treat pid as an unsigned int,
633 * with the corresponding cast to a signed int to insure that the
634 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
635 * and the register representation of a signed int (msr in 64-bit mode) is performed.
637 asmlinkage long compat_sys_sched_setparam(u32 pid, struct sched_param __user *param)
639 return sys_sched_setparam((int)pid, param);
643 /* Note: it is necessary to treat pid and policy as unsigned ints,
644 * with the corresponding cast to a signed int to insure that the
645 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
646 * and the register representation of a signed int (msr in 64-bit mode) is performed.
648 asmlinkage long compat_sys_sched_setscheduler(u32 pid, u32 policy, struct sched_param __user *param)
650 return sys_sched_setscheduler((int)pid, (int)policy, param);
654 /* Note: it is necessary to treat len as an unsigned int,
655 * with the corresponding cast to a signed int to insure that the
656 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
657 * and the register representation of a signed int (msr in 64-bit mode) is performed.
659 asmlinkage long compat_sys_setdomainname(char __user *name, u32 len)
661 return sys_setdomainname(name, (int)len);
665 /* Note: it is necessary to treat gidsetsize as an unsigned int,
666 * with the corresponding cast to a signed int to insure that the
667 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
668 * and the register representation of a signed int (msr in 64-bit mode) is performed.
670 asmlinkage long compat_sys_setgroups(u32 gidsetsize, gid_t __user *grouplist)
672 return sys_setgroups((int)gidsetsize, grouplist);
676 asmlinkage long compat_sys_sethostname(char __user *name, u32 len)
678 /* sign extend len */
679 return sys_sethostname(name, (int)len);
683 /* Note: it is necessary to treat pid and pgid as unsigned ints,
684 * with the corresponding cast to a signed int to insure that the
685 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
686 * and the register representation of a signed int (msr in 64-bit mode) is performed.
688 asmlinkage long compat_sys_setpgid(u32 pid, u32 pgid)
690 return sys_setpgid((int)pid, (int)pgid);
693 long compat_sys_getpriority(u32 which, u32 who)
695 /* sign extend which and who */
696 return sys_getpriority((int)which, (int)who);
699 long compat_sys_setpriority(u32 which, u32 who, u32 niceval)
701 /* sign extend which, who and niceval */
702 return sys_setpriority((int)which, (int)who, (int)niceval);
705 long compat_sys_ioprio_get(u32 which, u32 who)
707 /* sign extend which and who */
708 return sys_ioprio_get((int)which, (int)who);
711 long compat_sys_ioprio_set(u32 which, u32 who, u32 ioprio)
713 /* sign extend which, who and ioprio */
714 return sys_ioprio_set((int)which, (int)who, (int)ioprio);
717 /* Note: it is necessary to treat newmask as an unsigned int,
718 * with the corresponding cast to a signed int to insure that the
719 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
720 * and the register representation of a signed int (msr in 64-bit mode) is performed.
722 asmlinkage long compat_sys_ssetmask(u32 newmask)
724 return sys_ssetmask((int) newmask);
727 asmlinkage long compat_sys_syslog(u32 type, char __user * buf, u32 len)
729 /* sign extend len */
730 return sys_syslog(type, buf, (int)len);
734 /* Note: it is necessary to treat mask as an unsigned int,
735 * with the corresponding cast to a signed int to insure that the
736 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
737 * and the register representation of a signed int (msr in 64-bit mode) is performed.
739 asmlinkage long compat_sys_umask(u32 mask)
741 return sys_umask((int)mask);
745 struct __sysctl_args32 {
755 asmlinkage long compat_sys_sysctl(struct __sysctl_args32 __user *args)
757 struct __sysctl_args32 tmp;
760 size_t __user *oldlenp = NULL;
761 unsigned long addr = (((unsigned long)&args->__unused[0]) + 7) & ~7;
763 if (copy_from_user(&tmp, args, sizeof(tmp)))
766 if (tmp.oldval && tmp.oldlenp) {
767 /* Duh, this is ugly and might not work if sysctl_args
768 is in read-only memory, but do_sysctl does indirectly
769 a lot of uaccess in both directions and we'd have to
770 basically copy the whole sysctl.c here, and
771 glibc's __sysctl uses rw memory for the structure
773 oldlenp = (size_t __user *)addr;
774 if (get_user(oldlen, (compat_size_t __user *)compat_ptr(tmp.oldlenp)) ||
775 put_user(oldlen, oldlenp))
780 error = do_sysctl(compat_ptr(tmp.name), tmp.nlen,
781 compat_ptr(tmp.oldval), oldlenp,
782 compat_ptr(tmp.newval), tmp.newlen);
786 if (get_user(oldlen, oldlenp) ||
787 put_user(oldlen, (compat_size_t __user *)compat_ptr(tmp.oldlenp)))
790 copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused));
796 unsigned long compat_sys_mmap2(unsigned long addr, size_t len,
797 unsigned long prot, unsigned long flags,
798 unsigned long fd, unsigned long pgoff)
800 /* This should remain 12 even if PAGE_SIZE changes */
801 return sys_mmap(addr, len, prot, flags, fd, pgoff << 12);
804 long compat_sys_tgkill(u32 tgid, u32 pid, int sig)
806 /* sign extend tgid, pid */
807 return sys_tgkill((int)tgid, (int)pid, sig);
812 * The 32 bit ABI passes long longs in an odd even register pair.
815 compat_ssize_t compat_sys_pread64(unsigned int fd, char __user *ubuf, compat_size_t count,
816 u32 reg6, u32 poshi, u32 poslo)
818 return sys_pread64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo);
821 compat_ssize_t compat_sys_pwrite64(unsigned int fd, char __user *ubuf, compat_size_t count,
822 u32 reg6, u32 poshi, u32 poslo)
824 return sys_pwrite64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo);
827 compat_ssize_t compat_sys_readahead(int fd, u32 r4, u32 offhi, u32 offlo, u32 count)
829 return sys_readahead(fd, ((loff_t)offhi << 32) | offlo, count);
832 asmlinkage int compat_sys_truncate64(const char __user * path, u32 reg4,
833 unsigned long high, unsigned long low)
835 return sys_truncate(path, (high << 32) | low);
838 asmlinkage int compat_sys_ftruncate64(unsigned int fd, u32 reg4, unsigned long high,
841 return sys_ftruncate(fd, (high << 32) | low);
844 long ppc32_lookup_dcookie(u32 cookie_high, u32 cookie_low, char __user *buf,
847 return sys_lookup_dcookie((u64)cookie_high << 32 | cookie_low,
851 long ppc32_fadvise64(int fd, u32 unused, u32 offset_high, u32 offset_low,
852 size_t len, int advice)
854 return sys_fadvise64(fd, (u64)offset_high << 32 | offset_low, len,
858 asmlinkage long compat_sys_add_key(const char __user *_type,
859 const char __user *_description,
860 const void __user *_payload,
864 return sys_add_key(_type, _description, _payload, plen, ringid);
867 asmlinkage long compat_sys_request_key(const char __user *_type,
868 const char __user *_description,
869 const char __user *_callout_info,
872 return sys_request_key(_type, _description, _callout_info, destringid);