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 <asm/ptrace.h>
19 #include <linux/kernel.h>
20 #include <linux/sched.h>
23 #include <linux/file.h>
24 #include <linux/signal.h>
25 #include <linux/resource.h>
26 #include <linux/times.h>
27 #include <linux/utsname.h>
28 #include <linux/timex.h>
29 #include <linux/smp.h>
30 #include <linux/smp_lock.h>
31 #include <linux/sem.h>
32 #include <linux/msg.h>
33 #include <linux/shm.h>
34 #include <linux/slab.h>
35 #include <linux/uio.h>
36 #include <linux/aio.h>
37 #include <linux/nfs_fs.h>
38 #include <linux/module.h>
39 #include <linux/sunrpc/svc.h>
40 #include <linux/nfsd/nfsd.h>
41 #include <linux/nfsd/cache.h>
42 #include <linux/nfsd/xdr.h>
43 #include <linux/nfsd/syscall.h>
44 #include <linux/poll.h>
45 #include <linux/personality.h>
46 #include <linux/stat.h>
47 #include <linux/filter.h>
48 #include <linux/highmem.h>
49 #include <linux/highuid.h>
50 #include <linux/mman.h>
51 #include <linux/ipv6.h>
53 #include <linux/icmpv6.h>
54 #include <linux/syscalls.h>
55 #include <linux/unistd.h>
56 #include <linux/sysctl.h>
57 #include <linux/binfmts.h>
58 #include <linux/dnotify.h>
59 #include <linux/security.h>
60 #include <linux/compat.h>
61 #include <linux/ptrace.h>
62 #include <linux/aio_abi.h>
64 #include <asm/types.h>
66 #include <asm/uaccess.h>
67 #include <asm/unistd.h>
69 #include <asm/semaphore.h>
73 #include <linux/elf.h>
74 #include <asm/ppcdebug.h>
76 #include <asm/ppc32.h>
77 #include <asm/mmu_context.h>
81 typedef ssize_t (*io_fn_t)(struct file *, char *, size_t, loff_t *);
82 typedef ssize_t (*iov_fn_t)(struct file *, const struct iovec *, unsigned long, loff_t *);
84 static long do_readv_writev32(int type, struct file *file,
85 const struct compat_iovec *vector, u32 count)
87 compat_ssize_t tot_len;
88 struct iovec iovstack[UIO_FASTIOV];
89 struct iovec *iov=iovstack, *ivp;
96 * SuS says "The readv() function *may* fail if the iovcnt argument
97 * was less than or equal to 0, or greater than {IOV_MAX}. Linux has
98 * traditionally returned zero for zero segments, so...
104 /* First get the "struct iovec" from user memory and
105 * verify all the pointers
108 if (count > UIO_MAXIOV)
112 if (count > UIO_FASTIOV) {
114 iov = kmalloc(count*sizeof(struct iovec), GFP_KERNEL);
119 if (verify_area(VERIFY_READ, vector, sizeof(struct compat_iovec)*count))
123 * Single unix specification:
124 * We should -EINVAL if an element length is not >= 0 and fitting an
125 * ssize_t. The total length is fitting an ssize_t
127 * Be careful here because iov_len is a size_t not an ssize_t
134 compat_ssize_t tmp = tot_len;
138 if (__get_user(len, &vector->iov_len) ||
139 __get_user(buf, &vector->iov_base)) {
143 if (len < 0) /* size_t not fitting an compat_ssize_t .. */
146 if (tot_len < tmp) /* maths overflow on the compat_ssize_t */
148 ivp->iov_base = (void *)A(buf);
149 ivp->iov_len = (__kernel_size_t) len;
159 inode = file->f_dentry->d_inode;
160 /* VERIFY_WRITE actually means a read, as we write to user space */
161 retval = locks_verify_area((type == READ
162 ? FLOCK_VERIFY_READ : FLOCK_VERIFY_WRITE),
163 inode, file, file->f_pos, tot_len);
168 fn = file->f_op->read;
169 fnv = file->f_op->readv;
171 fn = (io_fn_t)file->f_op->write;
172 fnv = file->f_op->writev;
175 retval = fnv(file, iov, count, &file->f_pos);
179 /* Do it by hand, with file-ops */
185 base = ivp->iov_base;
190 nr = fn(file, base, len, &file->f_pos);
204 if ((retval + (type == READ)) > 0)
205 dnotify_parent(file->f_dentry,
206 (type == READ) ? DN_ACCESS : DN_MODIFY);
211 asmlinkage long sys32_readv(int fd, struct compat_iovec *vector, u32 count)
217 if (!file || !(file->f_mode & FMODE_READ))
221 if (!file->f_op || (!file->f_op->readv && !file->f_op->read))
224 ret = do_readv_writev32(READ, file, vector, count);
232 asmlinkage long sys32_writev(int fd, struct compat_iovec *vector, u32 count)
238 if (!file || !(file->f_mode & FMODE_WRITE))
242 if (!file->f_op || (!file->f_op->writev && !file->f_op->write))
245 ret = do_readv_writev32(WRITE, file, vector, count);
253 /* readdir & getdents */
254 #define NAME_OFFSET(de) ((int) ((de)->d_name - (char *) (de)))
255 #define ROUND_UP(x) (((x)+sizeof(u32)-1) & ~(sizeof(u32)-1))
257 struct old_linux_dirent32 {
260 unsigned short d_namlen;
264 struct readdir_callback32 {
265 struct old_linux_dirent32 * dirent;
269 static int fillonedir(void * __buf, const char * name, int namlen,
270 off_t offset, ino_t ino, unsigned int d_type)
272 struct readdir_callback32 * buf = (struct readdir_callback32 *) __buf;
273 struct old_linux_dirent32 * dirent;
278 dirent = buf->dirent;
279 put_user(ino, &dirent->d_ino);
280 put_user(offset, &dirent->d_offset);
281 put_user(namlen, &dirent->d_namlen);
282 copy_to_user(dirent->d_name, name, namlen);
283 put_user(0, dirent->d_name + namlen);
287 asmlinkage int old32_readdir(unsigned int fd, struct old_linux_dirent32 *dirent, unsigned int count)
291 struct readdir_callback32 buf;
300 error = vfs_readdir(file, (filldir_t)fillonedir, &buf);
311 struct linux_dirent32 {
314 unsigned short d_reclen;
318 struct getdents_callback32 {
319 struct linux_dirent32 * current_dir;
320 struct linux_dirent32 * previous;
325 static int filldir(void * __buf, const char * name, int namlen, off_t offset,
326 ino_t ino, unsigned int d_type)
328 struct linux_dirent32 * dirent;
329 struct getdents_callback32 * buf = (struct getdents_callback32 *) __buf;
330 int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 2);
332 buf->error = -EINVAL; /* only used if we fail.. */
333 if (reclen > buf->count)
335 dirent = buf->previous;
337 if (__put_user(offset, &dirent->d_off))
340 dirent = buf->current_dir;
341 if (__put_user(ino, &dirent->d_ino))
343 if (__put_user(reclen, &dirent->d_reclen))
345 if (copy_to_user(dirent->d_name, name, namlen))
347 if (__put_user(0, dirent->d_name + namlen))
349 if (__put_user(d_type, (char *) dirent + reclen - 1))
351 buf->previous = dirent;
352 dirent = (void *)dirent + reclen;
353 buf->current_dir = dirent;
354 buf->count -= reclen;
357 buf->error = -EFAULT;
361 long sys32_getdents(unsigned int fd, struct linux_dirent32 *dirent,
365 struct linux_dirent32 * lastdirent;
366 struct getdents_callback32 buf;
370 if (!access_ok(VERIFY_WRITE, dirent, count))
378 buf.current_dir = dirent;
383 error = vfs_readdir(file, (filldir_t)filldir, &buf);
387 lastdirent = buf.previous;
389 if (put_user(file->f_pos, &lastdirent->d_off))
392 error = count - buf.count;
402 * Ooo, nasty. We need here to frob 32-bit unsigned longs to
403 * 64-bit unsigned longs.
406 get_fd_set32(unsigned long n, unsigned long *fdset, u32 *ufdset)
411 if (verify_area(VERIFY_WRITE, ufdset, n*sizeof(u32)))
418 __get_user(l, ufdset);
419 __get_user(h, ufdset+1);
421 *fdset++ = h << 32 | l;
425 __get_user(*fdset, ufdset);
427 /* Tricky, must clear full unsigned long in the
428 * kernel fdset at the end, this makes sure that
431 memset(fdset, 0, ((n + 1) & ~1)*sizeof(u32));
437 set_fd_set32(unsigned long n, u32 *ufdset, unsigned long *fdset)
450 __put_user(l, ufdset);
451 __put_user(h, ufdset+1);
456 __put_user(*fdset, ufdset);
461 #define MAX_SELECT_SECONDS ((unsigned long) (MAX_SCHEDULE_TIMEOUT / HZ)-1)
463 asmlinkage long sys32_select(int n, u32 *inp, u32 *outp, u32 *exp, u32 tvp_x)
466 struct compat_timeval *tvp = (struct compat_timeval *)AA(tvp_x);
470 int ret, size, max_fdset;
472 timeout = MAX_SCHEDULE_TIMEOUT;
475 if ((ret = verify_area(VERIFY_READ, tvp, sizeof(*tvp)))
476 || (ret = __get_user(sec, &tvp->tv_sec))
477 || (ret = __get_user(usec, &tvp->tv_usec)))
481 if(sec < 0 || usec < 0)
484 if ((unsigned long) sec < MAX_SELECT_SECONDS) {
485 timeout = (usec + 1000000/HZ - 1) / (1000000/HZ);
486 timeout += sec * (unsigned long) HZ;
494 /* max_fdset can increase, so grab it once to avoid race */
495 max_fdset = current->files->max_fdset;
500 * We need 6 bitmaps (in/out/ex for both incoming and outgoing),
501 * since we used fdset we need to allocate memory in units of
506 bits = kmalloc(6 * size, GFP_KERNEL);
509 fds.in = (unsigned long *) bits;
510 fds.out = (unsigned long *) (bits + size);
511 fds.ex = (unsigned long *) (bits + 2*size);
512 fds.res_in = (unsigned long *) (bits + 3*size);
513 fds.res_out = (unsigned long *) (bits + 4*size);
514 fds.res_ex = (unsigned long *) (bits + 5*size);
516 nn = (n + 8*sizeof(u32) - 1) / (8*sizeof(u32));
517 if ((ret = get_fd_set32(nn, fds.in, inp)) ||
518 (ret = get_fd_set32(nn, fds.out, outp)) ||
519 (ret = get_fd_set32(nn, fds.ex, exp)))
521 zero_fd_set(n, fds.res_in);
522 zero_fd_set(n, fds.res_out);
523 zero_fd_set(n, fds.res_ex);
525 ret = do_select(n, &fds, &timeout);
527 if (tvp && !(current->personality & STICKY_TIMEOUTS)) {
528 time_t sec = 0, usec = 0;
532 usec *= (1000000/HZ);
534 put_user(sec, &tvp->tv_sec);
535 put_user(usec, &tvp->tv_usec);
541 ret = -ERESTARTNOHAND;
542 if (signal_pending(current))
547 set_fd_set32(nn, inp, fds.res_in);
548 set_fd_set32(nn, outp, fds.res_out);
549 set_fd_set32(nn, exp, fds.res_ex);
558 int ppc32_select(u32 n, u32* inp, u32* outp, u32* exp, u32 tvp_x)
561 return sys32_select((int)n, inp, outp, exp, tvp_x);
564 int cp_compat_stat(struct kstat *stat, struct compat_stat *statbuf)
568 if (stat->size > MAX_NON_LFS || !new_valid_dev(stat->dev) ||
569 !new_valid_dev(stat->rdev))
572 err = verify_area(VERIFY_WRITE, statbuf, sizeof(*statbuf));
573 err |= __put_user(new_encode_dev(stat->dev), &statbuf->st_dev);
574 err |= __put_user(stat->ino, &statbuf->st_ino);
575 err |= __put_user(stat->mode, &statbuf->st_mode);
576 err |= __put_user(stat->nlink, &statbuf->st_nlink);
577 err |= __put_user(stat->uid, &statbuf->st_uid);
578 err |= __put_user(stat->gid, &statbuf->st_gid);
579 err |= __put_user(new_encode_dev(stat->rdev), &statbuf->st_rdev);
580 err |= __put_user(stat->size, &statbuf->st_size);
581 err |= __put_user(stat->atime.tv_sec, &statbuf->st_atime);
582 err |= __put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec);
583 err |= __put_user(stat->mtime.tv_sec, &statbuf->st_mtime);
584 err |= __put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec);
585 err |= __put_user(stat->ctime.tv_sec, &statbuf->st_ctime);
586 err |= __put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec);
587 err |= __put_user(stat->blksize, &statbuf->st_blksize);
588 err |= __put_user(stat->blocks, &statbuf->st_blocks);
589 err |= __put_user(0, &statbuf->__unused4[0]);
590 err |= __put_user(0, &statbuf->__unused4[1]);
595 /* Note: it is necessary to treat option as an unsigned int,
596 * with the corresponding cast to a signed int to insure that the
597 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
598 * and the register representation of a signed int (msr in 64-bit mode) is performed.
600 asmlinkage long sys32_sysfs(u32 option, u32 arg1, u32 arg2)
602 return sys_sysfs((int)option, arg1, arg2);
605 /* Handle adjtimex compatibility. */
608 s32 offset, freq, maxerror, esterror;
609 s32 status, constant, precision, tolerance;
610 struct compat_timeval time;
612 s32 ppsfreq, jitter, shift, stabil;
613 s32 jitcnt, calcnt, errcnt, stbcnt;
614 s32 :32; s32 :32; s32 :32; s32 :32;
615 s32 :32; s32 :32; s32 :32; s32 :32;
616 s32 :32; s32 :32; s32 :32; s32 :32;
619 extern int do_adjtimex(struct timex *);
620 extern void ppc_adjtimex(void);
622 asmlinkage long sys32_adjtimex(struct timex32 *utp)
627 memset(&txc, 0, sizeof(struct timex));
629 if(get_user(txc.modes, &utp->modes) ||
630 __get_user(txc.offset, &utp->offset) ||
631 __get_user(txc.freq, &utp->freq) ||
632 __get_user(txc.maxerror, &utp->maxerror) ||
633 __get_user(txc.esterror, &utp->esterror) ||
634 __get_user(txc.status, &utp->status) ||
635 __get_user(txc.constant, &utp->constant) ||
636 __get_user(txc.precision, &utp->precision) ||
637 __get_user(txc.tolerance, &utp->tolerance) ||
638 __get_user(txc.time.tv_sec, &utp->time.tv_sec) ||
639 __get_user(txc.time.tv_usec, &utp->time.tv_usec) ||
640 __get_user(txc.tick, &utp->tick) ||
641 __get_user(txc.ppsfreq, &utp->ppsfreq) ||
642 __get_user(txc.jitter, &utp->jitter) ||
643 __get_user(txc.shift, &utp->shift) ||
644 __get_user(txc.stabil, &utp->stabil) ||
645 __get_user(txc.jitcnt, &utp->jitcnt) ||
646 __get_user(txc.calcnt, &utp->calcnt) ||
647 __get_user(txc.errcnt, &utp->errcnt) ||
648 __get_user(txc.stbcnt, &utp->stbcnt))
651 ret = do_adjtimex(&txc);
653 /* adjust the conversion of TB to time of day to track adjtimex */
656 if(put_user(txc.modes, &utp->modes) ||
657 __put_user(txc.offset, &utp->offset) ||
658 __put_user(txc.freq, &utp->freq) ||
659 __put_user(txc.maxerror, &utp->maxerror) ||
660 __put_user(txc.esterror, &utp->esterror) ||
661 __put_user(txc.status, &utp->status) ||
662 __put_user(txc.constant, &utp->constant) ||
663 __put_user(txc.precision, &utp->precision) ||
664 __put_user(txc.tolerance, &utp->tolerance) ||
665 __put_user(txc.time.tv_sec, &utp->time.tv_sec) ||
666 __put_user(txc.time.tv_usec, &utp->time.tv_usec) ||
667 __put_user(txc.tick, &utp->tick) ||
668 __put_user(txc.ppsfreq, &utp->ppsfreq) ||
669 __put_user(txc.jitter, &utp->jitter) ||
670 __put_user(txc.shift, &utp->shift) ||
671 __put_user(txc.stabil, &utp->stabil) ||
672 __put_user(txc.jitcnt, &utp->jitcnt) ||
673 __put_user(txc.calcnt, &utp->calcnt) ||
674 __put_user(txc.errcnt, &utp->errcnt) ||
675 __put_user(txc.stbcnt, &utp->stbcnt))
681 /* Stuff for NFS server syscalls... */
682 struct nfsctl_svc32 {
687 struct nfsctl_client32 {
688 s8 cl32_ident[NFSCLNT_IDMAX+1];
690 struct in_addr cl32_addrlist[NFSCLNT_ADDRMAX];
693 u8 cl32_fhkey[NFSCLNT_KEYMAX];
696 struct nfsctl_export32 {
697 s8 ex32_client[NFSCLNT_IDMAX+1];
698 s8 ex32_path[NFS_MAXPATHLEN+1];
699 compat_dev_t ex32_dev;
700 compat_ino_t ex32_ino;
702 compat_uid_t ex32_anon_uid;
703 compat_gid_t ex32_anon_gid;
706 struct nfsctl_fdparm32 {
707 struct sockaddr gd32_addr;
708 s8 gd32_path[NFS_MAXPATHLEN+1];
712 struct nfsctl_fsparm32 {
713 struct sockaddr gd32_addr;
714 s8 gd32_path[NFS_MAXPATHLEN+1];
718 struct nfsctl_arg32 {
719 s32 ca32_version; /* safeguard */
721 struct nfsctl_svc32 u32_svc;
722 struct nfsctl_client32 u32_client;
723 struct nfsctl_export32 u32_export;
724 struct nfsctl_fdparm32 u32_getfd;
725 struct nfsctl_fsparm32 u32_getfs;
727 #define ca32_svc u.u32_svc
728 #define ca32_client u.u32_client
729 #define ca32_export u.u32_export
730 #define ca32_getfd u.u32_getfd
731 #define ca32_getfs u.u32_getfs
735 __u8 cr32_getfh[NFS_FHSIZE];
736 struct knfsd_fh cr32_getfs;
739 static int nfs_svc32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
743 err = __get_user(karg->ca_version, &arg32->ca32_version);
744 err |= __get_user(karg->ca_svc.svc_port, &arg32->ca32_svc.svc32_port);
745 err |= __get_user(karg->ca_svc.svc_nthreads, &arg32->ca32_svc.svc32_nthreads);
749 static int nfs_clnt32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
753 err = __get_user(karg->ca_version, &arg32->ca32_version);
754 err |= copy_from_user(&karg->ca_client.cl_ident[0],
755 &arg32->ca32_client.cl32_ident[0],
757 err |= __get_user(karg->ca_client.cl_naddr, &arg32->ca32_client.cl32_naddr);
758 err |= copy_from_user(&karg->ca_client.cl_addrlist[0],
759 &arg32->ca32_client.cl32_addrlist[0],
760 (sizeof(struct in_addr) * NFSCLNT_ADDRMAX));
761 err |= __get_user(karg->ca_client.cl_fhkeytype,
762 &arg32->ca32_client.cl32_fhkeytype);
763 err |= __get_user(karg->ca_client.cl_fhkeylen,
764 &arg32->ca32_client.cl32_fhkeylen);
765 err |= copy_from_user(&karg->ca_client.cl_fhkey[0],
766 &arg32->ca32_client.cl32_fhkey[0],
769 if(err) return -EFAULT;
773 static int nfs_exp32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
777 err = __get_user(karg->ca_version, &arg32->ca32_version);
778 err |= copy_from_user(&karg->ca_export.ex_client[0],
779 &arg32->ca32_export.ex32_client[0],
781 err |= copy_from_user(&karg->ca_export.ex_path[0],
782 &arg32->ca32_export.ex32_path[0],
784 err |= __get_user(karg->ca_export.ex_dev,
785 &arg32->ca32_export.ex32_dev);
786 err |= __get_user(karg->ca_export.ex_ino,
787 &arg32->ca32_export.ex32_ino);
788 err |= __get_user(karg->ca_export.ex_flags,
789 &arg32->ca32_export.ex32_flags);
790 err |= __get_user(karg->ca_export.ex_anon_uid,
791 &arg32->ca32_export.ex32_anon_uid);
792 err |= __get_user(karg->ca_export.ex_anon_gid,
793 &arg32->ca32_export.ex32_anon_gid);
794 karg->ca_export.ex_anon_uid = karg->ca_export.ex_anon_uid;
795 karg->ca_export.ex_anon_gid = karg->ca_export.ex_anon_gid;
797 if(err) return -EFAULT;
801 static int nfs_getfd32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
805 err = __get_user(karg->ca_version, &arg32->ca32_version);
806 err |= copy_from_user(&karg->ca_getfd.gd_addr,
807 &arg32->ca32_getfd.gd32_addr,
808 (sizeof(struct sockaddr)));
809 err |= copy_from_user(&karg->ca_getfd.gd_path,
810 &arg32->ca32_getfd.gd32_path,
812 err |= __get_user(karg->ca_getfd.gd_version,
813 &arg32->ca32_getfd.gd32_version);
815 if(err) return -EFAULT;
819 static int nfs_getfs32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
823 err = __get_user(karg->ca_version, &arg32->ca32_version);
824 err |= copy_from_user(&karg->ca_getfs.gd_addr,
825 &arg32->ca32_getfs.gd32_addr,
826 (sizeof(struct sockaddr)));
827 err |= copy_from_user(&karg->ca_getfs.gd_path,
828 &arg32->ca32_getfs.gd32_path,
830 err |= __get_user(karg->ca_getfs.gd_maxlen,
831 &arg32->ca32_getfs.gd32_maxlen);
833 if(err) return -EFAULT;
837 /* This really doesn't need translations, we are only passing
838 * back a union which contains opaque nfs file handle data.
840 static int nfs_getfh32_res_trans(union nfsctl_res *kres, union nfsctl_res32 *res32)
844 err = copy_to_user(res32, kres, sizeof(*res32));
846 if(err) return -EFAULT;
850 /* Note: it is necessary to treat cmd_parm as an unsigned int,
851 * with the corresponding cast to a signed int to insure that the
852 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
853 * and the register representation of a signed int (msr in 64-bit mode) is performed.
855 int asmlinkage sys32_nfsservctl(u32 cmd_parm, struct nfsctl_arg32 *arg32, union nfsctl_res32 *res32)
857 int cmd = (int)cmd_parm;
858 struct nfsctl_arg *karg = NULL;
859 union nfsctl_res *kres = NULL;
863 karg = kmalloc(sizeof(*karg), GFP_USER);
867 kres = kmalloc(sizeof(*kres), GFP_USER);
875 err = nfs_svc32_trans(karg, arg32);
877 case NFSCTL_ADDCLIENT:
878 err = nfs_clnt32_trans(karg, arg32);
880 case NFSCTL_DELCLIENT:
881 err = nfs_clnt32_trans(karg, arg32);
884 case NFSCTL_UNEXPORT:
885 err = nfs_exp32_trans(karg, arg32);
888 err = nfs_getfd32_trans(karg, arg32);
891 err = nfs_getfs32_trans(karg, arg32);
901 err = sys_nfsservctl(cmd, karg, kres);
907 if((cmd == NFSCTL_GETFD) ||
908 (cmd == NFSCTL_GETFS))
909 err = nfs_getfh32_res_trans(kres, res32);
921 /* These are here just in case some old sparc32 binary calls it. */
922 asmlinkage long sys32_pause(void)
924 current->state = TASK_INTERRUPTIBLE;
927 return -ERESTARTNOHAND;
932 static inline long get_ts32(struct timespec *o, struct compat_timeval *i)
936 if (!access_ok(VERIFY_READ, i, sizeof(*i)))
938 if (__get_user(o->tv_sec, &i->tv_sec))
940 if (__get_user(usec, &i->tv_usec))
942 o->tv_nsec = usec * 1000;
946 static inline long put_tv32(struct compat_timeval *o, struct timeval *i)
948 return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
949 (__put_user(i->tv_sec, &o->tv_sec) |
950 __put_user(i->tv_usec, &o->tv_usec)));
962 unsigned short procs;
967 char _f[20-2*sizeof(int)-sizeof(int)];
970 asmlinkage long sys32_sysinfo(struct sysinfo32 *info)
975 mm_segment_t old_fs = get_fs ();
978 ret = sys_sysinfo(&s);
980 /* Check to see if any memory value is too large for 32-bit and
981 * scale down if needed.
983 if ((s.totalram >> 32) || (s.totalswap >> 32)) {
984 while (s.mem_unit < PAGE_SIZE) {
988 s.totalram >>=bitcount;
989 s.freeram >>= bitcount;
990 s.sharedram >>= bitcount;
991 s.bufferram >>= bitcount;
992 s.totalswap >>= bitcount;
993 s.freeswap >>= bitcount;
994 s.totalhigh >>= bitcount;
995 s.freehigh >>= bitcount;
998 err = put_user (s.uptime, &info->uptime);
999 err |= __put_user (s.loads[0], &info->loads[0]);
1000 err |= __put_user (s.loads[1], &info->loads[1]);
1001 err |= __put_user (s.loads[2], &info->loads[2]);
1002 err |= __put_user (s.totalram, &info->totalram);
1003 err |= __put_user (s.freeram, &info->freeram);
1004 err |= __put_user (s.sharedram, &info->sharedram);
1005 err |= __put_user (s.bufferram, &info->bufferram);
1006 err |= __put_user (s.totalswap, &info->totalswap);
1007 err |= __put_user (s.freeswap, &info->freeswap);
1008 err |= __put_user (s.procs, &info->procs);
1009 err |= __put_user (s.totalhigh, &info->totalhigh);
1010 err |= __put_user (s.freehigh, &info->freehigh);
1011 err |= __put_user (s.mem_unit, &info->mem_unit);
1021 /* Translations due to time_t size differences. Which affects all
1022 sorts of things, like timeval and itimerval. */
1023 extern struct timezone sys_tz;
1025 asmlinkage long sys32_gettimeofday(struct compat_timeval *tv, struct timezone *tz)
1029 do_gettimeofday(&ktv);
1030 if (put_tv32(tv, &ktv))
1034 if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
1043 asmlinkage long sys32_settimeofday(struct compat_timeval *tv, struct timezone *tz)
1045 struct timespec kts;
1046 struct timezone ktz;
1049 if (get_ts32(&kts, tv))
1053 if (copy_from_user(&ktz, tz, sizeof(ktz)))
1057 return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
1062 compat_long_t mtype;
1067 struct ipc_perm sem_perm;
1068 compat_time_t sem_otime;
1069 compat_time_t sem_ctime;
1070 compat_uptr_t sem_base;
1071 compat_uptr_t sem_pending;
1072 compat_uptr_t sem_pending_last;
1074 unsigned short sem_nsems;
1077 struct semid64_ds32 {
1078 struct ipc64_perm sem_perm;
1079 unsigned int __unused1;
1080 compat_time_t sem_otime;
1081 unsigned int __unused2;
1082 compat_time_t sem_ctime;
1083 compat_ulong_t sem_nsems;
1084 compat_ulong_t __unused3;
1085 compat_ulong_t __unused4;
1089 struct ipc_perm msg_perm;
1090 compat_uptr_t msg_first;
1091 compat_uptr_t msg_last;
1092 compat_time_t msg_stime;
1093 compat_time_t msg_rtime;
1094 compat_time_t msg_ctime;
1095 compat_ulong_t msg_lcbytes;
1096 compat_ulong_t msg_lqbytes;
1097 unsigned short msg_cbytes;
1098 unsigned short msg_qnum;
1099 unsigned short msg_qbytes;
1100 compat_ipc_pid_t msg_lspid;
1101 compat_ipc_pid_t msg_lrpid;
1104 struct msqid64_ds32 {
1105 struct ipc64_perm msg_perm;
1106 unsigned int __unused1;
1107 compat_time_t msg_stime;
1108 unsigned int __unused2;
1109 compat_time_t msg_rtime;
1110 unsigned int __unused3;
1111 compat_time_t msg_ctime;
1112 compat_ulong_t msg_cbytes;
1113 compat_ulong_t msg_qnum;
1114 compat_ulong_t msg_qbytes;
1115 compat_pid_t msg_lspid;
1116 compat_pid_t msg_lrpid;
1117 compat_ulong_t __unused4;
1118 compat_ulong_t __unused5;
1122 struct ipc_perm shm_perm;
1124 compat_time_t shm_atime;
1125 compat_time_t shm_dtime;
1126 compat_time_t shm_ctime;
1127 compat_ipc_pid_t shm_cpid;
1128 compat_ipc_pid_t shm_lpid;
1129 unsigned short shm_nattch;
1130 unsigned short __unused;
1131 compat_uptr_t __unused2;
1132 compat_uptr_t __unused3;
1135 struct shmid64_ds32 {
1136 struct ipc64_perm shm_perm;
1137 unsigned int __unused1;
1138 compat_time_t shm_atime;
1139 unsigned int __unused2;
1140 compat_time_t shm_dtime;
1141 unsigned int __unused3;
1142 compat_time_t shm_ctime;
1143 unsigned int __unused4;
1144 compat_size_t shm_segsz;
1145 compat_pid_t shm_cpid;
1146 compat_pid_t shm_lpid;
1147 compat_ulong_t shm_nattch;
1148 compat_ulong_t __unused5;
1149 compat_ulong_t __unused6;
1153 * sys32_ipc() is the de-multiplexer for the SysV IPC calls in 32bit
1156 * This is really horribly ugly.
1158 static long do_sys32_semctl(int first, int second, int third, void *uptr)
1163 mm_segment_t old_fs;
1168 if (get_user(pad, (u32 *)uptr))
1170 if ((third & ~IPC_64) == SETVAL)
1171 fourth.val = (int)pad;
1173 fourth.__pad = (void *)A(pad);
1174 switch (third & (~IPC_64)) {
1186 err = sys_semctl(first, second, third, fourth);
1191 if (third & IPC_64) {
1192 struct semid64_ds s64;
1193 struct semid64_ds32 *usp;
1195 usp = (struct semid64_ds32 *)A(pad);
1196 fourth.__pad = &s64;
1199 err = sys_semctl(first, second, third, fourth);
1201 err2 = copy_to_user(&usp->sem_perm, &s64.sem_perm,
1202 sizeof(struct ipc64_perm));
1203 err2 |= __put_user(s64.sem_otime, &usp->sem_otime);
1204 err2 |= __put_user(s64.sem_ctime, &usp->sem_ctime);
1205 err2 |= __put_user(s64.sem_nsems, &usp->sem_nsems);
1210 struct semid_ds32 *usp;
1212 usp = (struct semid_ds32 *)A(pad);
1216 err = sys_semctl(first, second, third, fourth);
1218 err2 = copy_to_user(&usp->sem_perm, &s.sem_perm,
1219 sizeof(struct ipc_perm));
1220 err2 |= __put_user(s.sem_otime, &usp->sem_otime);
1221 err2 |= __put_user(s.sem_ctime, &usp->sem_ctime);
1222 err2 |= __put_user(s.sem_nsems, &usp->sem_nsems);
1229 if (third & IPC_64) {
1230 struct semid64_ds s64;
1231 struct semid64_ds32 *usp;
1233 usp = (struct semid64_ds32 *)A(pad);
1235 err = get_user(s64.sem_perm.uid, &usp->sem_perm.uid);
1236 err |= __get_user(s64.sem_perm.gid,
1237 &usp->sem_perm.gid);
1238 err |= __get_user(s64.sem_perm.mode,
1239 &usp->sem_perm.mode);
1242 fourth.__pad = &s64;
1246 err = sys_semctl(first, second, third, fourth);
1251 struct semid_ds32 *usp;
1253 usp = (struct semid_ds32 *)A(pad);
1255 err = get_user(s.sem_perm.uid, &usp->sem_perm.uid);
1256 err |= __get_user(s.sem_perm.gid,
1257 &usp->sem_perm.gid);
1258 err |= __get_user(s.sem_perm.mode,
1259 &usp->sem_perm.mode);
1266 err = sys_semctl(first, second, third, fourth);
1277 #define MAXBUF (64*1024)
1280 do_sys32_msgsnd(int first, int second, int third, void *uptr)
1283 struct msgbuf32 *up = (struct msgbuf32 *)uptr;
1284 mm_segment_t old_fs;
1287 if (second < 0 || (second >= MAXBUF-sizeof(struct msgbuf)))
1290 p = kmalloc(second + sizeof(struct msgbuf), GFP_USER);
1293 err = get_user(p->mtype, &up->mtype);
1294 err |= copy_from_user(p->mtext, &up->mtext, second);
1301 err = sys_msgsnd(first, p, second, third);
1309 do_sys32_msgrcv(int first, int second, int msgtyp, int third,
1310 int version, void *uptr)
1312 struct msgbuf32 *up;
1314 mm_segment_t old_fs;
1317 if (second < 0 || (second >= MAXBUF-sizeof(struct msgbuf)))
1321 struct ipc_kludge_32 *uipck = (struct ipc_kludge_32 *)uptr;
1322 struct ipc_kludge_32 ipck;
1328 if (copy_from_user(&ipck, uipck, sizeof(struct ipc_kludge_32)))
1330 uptr = (void *)A(ipck.msgp);
1331 msgtyp = ipck.msgtyp;
1334 p = kmalloc(second + sizeof (struct msgbuf), GFP_USER);
1339 err = sys_msgrcv(first, p, second, msgtyp, third);
1343 up = (struct msgbuf32 *)uptr;
1344 if (put_user(p->mtype, &up->mtype) ||
1345 copy_to_user(&up->mtext, p->mtext, err))
1354 do_sys32_msgctl(int first, int second, void *uptr)
1356 int err = -EINVAL, err2;
1357 mm_segment_t old_fs;
1359 switch (second & (~IPC_64)) {
1364 err = sys_msgctl(first, second, (struct msqid_ds *)uptr);
1368 if (second & IPC_64) {
1369 struct msqid64_ds m64;
1370 struct msqid64_ds32 *up = (struct msqid64_ds32 *)uptr;
1372 err2 = copy_from_user(&m64.msg_perm, &up->msg_perm,
1373 sizeof(struct ipc64_perm));
1374 err2 |= __get_user(m64.msg_qbytes, &up->msg_qbytes);
1381 err = sys_msgctl(first, second,
1382 (struct msqid_ds *)&m64);
1386 struct msqid_ds32 *up = (struct msqid_ds32 *)uptr;
1388 err2 = copy_from_user(&m.msg_perm, &up->msg_perm,
1389 sizeof(struct ipc_perm));
1390 err2 |= __get_user(m.msg_qbytes, &up->msg_qbytes);
1397 err = sys_msgctl(first, second, &m);
1404 if (second & IPC_64) {
1405 struct msqid64_ds m64;
1406 struct msqid64_ds32 *up = (struct msqid64_ds32 *)uptr;
1410 err = sys_msgctl(first, second,
1411 (struct msqid_ds *)&m64);
1414 err2 = copy_to_user(&up->msg_perm, &m64.msg_perm,
1415 sizeof(struct ipc64_perm));
1416 err2 |= __put_user(m64.msg_stime, &up->msg_stime);
1417 err2 |= __put_user(m64.msg_rtime, &up->msg_rtime);
1418 err2 |= __put_user(m64.msg_ctime, &up->msg_ctime);
1419 err2 |= __put_user(m64.msg_cbytes, &up->msg_cbytes);
1420 err2 |= __put_user(m64.msg_qnum, &up->msg_qnum);
1421 err2 |= __put_user(m64.msg_qbytes, &up->msg_qbytes);
1422 err2 |= __put_user(m64.msg_lspid, &up->msg_lspid);
1423 err2 |= __put_user(m64.msg_lrpid, &up->msg_lrpid);
1427 struct msqid64_ds m;
1428 struct msqid_ds32 *up = (struct msqid_ds32 *)uptr;
1432 err = sys_msgctl(first, second, (struct msqid_ds *)&m);
1435 err2 = copy_to_user(&up->msg_perm, &m.msg_perm,
1436 sizeof(struct ipc_perm));
1437 err2 |= __put_user(m.msg_stime, &up->msg_stime);
1438 err2 |= __put_user(m.msg_rtime, &up->msg_rtime);
1439 err2 |= __put_user(m.msg_ctime, &up->msg_ctime);
1440 err2 |= __put_user(m.msg_cbytes, &up->msg_cbytes);
1441 err2 |= __put_user(m.msg_qnum, &up->msg_qnum);
1442 err2 |= __put_user(m.msg_qbytes, &up->msg_qbytes);
1443 err2 |= __put_user(m.msg_lspid, &up->msg_lspid);
1444 err2 |= __put_user(m.msg_lrpid, &up->msg_lrpid);
1454 do_sys32_shmat(int first, int second, int third, int version, void *uptr)
1456 unsigned long raddr;
1457 u32 *uaddr = (u32 *)A((u32)third);
1462 err = do_shmat(first, uptr, second, &raddr);
1465 err = put_user(raddr, uaddr);
1470 do_sys32_shmctl(int first, int second, void *uptr)
1472 int err = -EINVAL, err2;
1473 mm_segment_t old_fs;
1475 switch (second & (~IPC_64)) {
1481 err = sys_shmctl(first, second, (struct shmid_ds *)uptr);
1484 if (second & IPC_64) {
1485 struct shmid64_ds32 *up = (struct shmid64_ds32 *)uptr;
1486 struct shmid64_ds s64;
1488 err = get_user(s64.shm_perm.uid, &up->shm_perm.uid);
1489 err |= __get_user(s64.shm_perm.gid, &up->shm_perm.gid);
1490 err |= __get_user(s64.shm_perm.mode,
1491 &up->shm_perm.mode);
1496 err = sys_shmctl(first, second,
1497 (struct shmid_ds *)&s64);
1500 struct shmid_ds32 *up = (struct shmid_ds32 *)uptr;
1503 err = get_user(s.shm_perm.uid, &up->shm_perm.uid);
1504 err |= __get_user(s.shm_perm.gid, &up->shm_perm.gid);
1505 err |= __get_user(s.shm_perm.mode, &up->shm_perm.mode);
1510 err = sys_shmctl(first, second, &s);
1517 if (second & IPC_64) {
1518 struct shmid64_ds32 *up = (struct shmid64_ds32 *)uptr;
1519 struct shmid64_ds s64;
1523 err = sys_shmctl(first, second,
1524 (struct shmid_ds *)&s64);
1529 err2 = copy_to_user(&up->shm_perm, &s64.shm_perm,
1530 sizeof(struct ipc64_perm));
1531 err2 |= __put_user(s64.shm_atime, &up->shm_atime);
1532 err2 |= __put_user(s64.shm_dtime, &up->shm_dtime);
1533 err2 |= __put_user(s64.shm_ctime, &up->shm_ctime);
1534 err2 |= __put_user(s64.shm_segsz, &up->shm_segsz);
1535 err2 |= __put_user(s64.shm_nattch, &up->shm_nattch);
1536 err2 |= __put_user(s64.shm_cpid, &up->shm_cpid);
1537 err2 |= __put_user(s64.shm_lpid, &up->shm_lpid);
1541 struct shmid_ds32 *up = (struct shmid_ds32 *)uptr;
1546 err = sys_shmctl(first, second, &s);
1551 err2 = copy_to_user(&up->shm_perm, &s.shm_perm,
1552 sizeof(struct ipc_perm));
1553 err2 |= __put_user (s.shm_atime, &up->shm_atime);
1554 err2 |= __put_user (s.shm_dtime, &up->shm_dtime);
1555 err2 |= __put_user (s.shm_ctime, &up->shm_ctime);
1556 err2 |= __put_user (s.shm_segsz, &up->shm_segsz);
1557 err2 |= __put_user (s.shm_nattch, &up->shm_nattch);
1558 err2 |= __put_user (s.shm_cpid, &up->shm_cpid);
1559 err2 |= __put_user (s.shm_lpid, &up->shm_lpid);
1569 u32 shm_tot, shm_rss, shm_swp;
1570 u32 swap_attempts, swap_successes;
1571 } *uip = (struct shm_info32 *)uptr;
1575 err = sys_shmctl(first, second, (struct shmid_ds *)&si);
1579 err2 = put_user(si.used_ids, &uip->used_ids);
1580 err2 |= __put_user(si.shm_tot, &uip->shm_tot);
1581 err2 |= __put_user(si.shm_rss, &uip->shm_rss);
1582 err2 |= __put_user(si.shm_swp, &uip->shm_swp);
1583 err2 |= __put_user(si.swap_attempts, &uip->swap_attempts);
1584 err2 |= __put_user(si.swap_successes, &uip->swap_successes);
1593 static int sys32_semtimedop(int semid, struct sembuf *tsems, int nsems,
1594 const struct compat_timespec *timeout32)
1596 struct compat_timespec t32;
1597 struct timespec *t64 = compat_alloc_user_space(sizeof(*t64));
1599 if (copy_from_user(&t32, timeout32, sizeof(t32)))
1602 if (put_user(t32.tv_sec, &t64->tv_sec) ||
1603 put_user(t32.tv_nsec, &t64->tv_nsec))
1606 return sys_semtimedop(semid, tsems, nsems, t64);
1610 * Note: it is necessary to treat first_parm, second_parm, and
1611 * third_parm as unsigned ints, with the corresponding cast to a
1612 * signed int to insure that the proper conversion (sign extension)
1613 * between the register representation of a signed int (msr in 32-bit
1614 * mode) and the register representation of a signed int (msr in
1615 * 64-bit mode) is performed.
1617 asmlinkage long sys32_ipc(u32 call, u32 first_parm, u32 second_parm, u32 third_parm, u32 ptr, u32 fifth)
1619 int first = (int)first_parm;
1620 int second = (int)second_parm;
1621 int third = (int)third_parm;
1624 version = call >> 16; /* hack for backward compatibility */
1630 /* struct sembuf is the same on 32 and 64bit :)) */
1631 err = sys_semtimedop(first, (struct sembuf *)AA(ptr),
1635 err = sys32_semtimedop(first, (struct sembuf *)AA(ptr), second,
1636 (const struct compat_timespec *)AA(fifth));
1639 err = sys_semget(first, second, third);
1642 err = do_sys32_semctl(first, second, third,
1647 err = do_sys32_msgsnd(first, second, third,
1651 err = do_sys32_msgrcv(first, second, fifth, third,
1652 version, (void *)AA(ptr));
1655 err = sys_msgget((key_t)first, second);
1658 err = do_sys32_msgctl(first, second, (void *)AA(ptr));
1662 err = do_sys32_shmat(first, second, third,
1663 version, (void *)AA(ptr));
1666 err = sys_shmdt((char *)AA(ptr));
1669 err = sys_shmget(first, second_parm, third);
1672 err = do_sys32_shmctl(first, second, (void *)AA(ptr));
1681 /* Note: it is necessary to treat out_fd and in_fd as unsigned ints,
1682 * with the corresponding cast to a signed int to insure that the
1683 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
1684 * and the register representation of a signed int (msr in 64-bit mode) is performed.
1686 asmlinkage long sys32_sendfile(u32 out_fd, u32 in_fd, compat_off_t* offset, u32 count)
1688 mm_segment_t old_fs = get_fs();
1692 if (offset && get_user(of, offset))
1696 ret = sys_sendfile((int)out_fd, (int)in_fd, offset ? &of : NULL, count);
1699 if (offset && put_user(of, offset))
1705 asmlinkage int sys32_sendfile64(int out_fd, int in_fd, compat_loff_t *offset, s32 count)
1707 mm_segment_t old_fs = get_fs();
1711 if (offset && get_user(lof, offset))
1715 ret = sys_sendfile64(out_fd, in_fd, offset ? &lof : NULL, count);
1718 if (offset && put_user(lof, offset))
1725 * count32() counts the number of arguments/envelopes
1727 static int count32(u32 * argv, int max)
1735 error = get_user(p,argv);
1749 * 'copy_string32()' copies argument/envelope strings from user
1750 * memory to free pages in kernel mem. These are in a format ready
1751 * to be put directly into the top of new user memory.
1753 static int copy_strings32(int argc, u32 * argv, struct linux_binprm *bprm)
1755 while (argc-- > 0) {
1760 if (get_user(str, argv + argc) ||
1762 !(len = strnlen_user((char *)A(str), bprm->p)))
1774 int offset, bytes_to_copy, new, err;
1776 offset = pos % PAGE_SIZE;
1777 page = bprm->page[pos / PAGE_SIZE];
1780 page = alloc_page(GFP_USER);
1781 bprm->page[pos / PAGE_SIZE] = page;
1786 kaddr = (char *)kmap(page);
1789 memset(kaddr, 0, offset);
1790 bytes_to_copy = PAGE_SIZE - offset;
1791 if (bytes_to_copy > len) {
1792 bytes_to_copy = len;
1794 memset(kaddr+offset+len, 0,
1795 PAGE_SIZE-offset-len);
1798 err = copy_from_user(kaddr + offset, (char *)A(str),
1800 kunmap((unsigned long)kaddr);
1805 pos += bytes_to_copy;
1806 str += bytes_to_copy;
1807 len -= bytes_to_copy;
1814 * sys32_execve() executes a new program.
1816 static int do_execve32(char * filename, u32 * argv, u32 * envp, struct pt_regs * regs)
1818 struct linux_binprm bprm;
1823 sched_balance_exec();
1825 file = open_exec(filename);
1827 retval = PTR_ERR(file);
1831 bprm.p = PAGE_SIZE*MAX_ARG_PAGES-sizeof(void *);
1832 memset(bprm.page, 0, MAX_ARG_PAGES * sizeof(bprm.page[0]));
1835 bprm.filename = filename;
1836 bprm.interp = filename;
1840 bprm.security = NULL;
1841 bprm.mm = mm_alloc();
1846 retval = init_new_context(current, bprm.mm);
1850 bprm.argc = count32(argv, bprm.p / sizeof(u32));
1851 if ((retval = bprm.argc) < 0)
1854 bprm.envc = count32(envp, bprm.p / sizeof(u32));
1855 if ((retval = bprm.envc) < 0)
1858 retval = security_bprm_alloc(&bprm);
1862 retval = prepare_binprm(&bprm);
1866 retval = copy_strings_kernel(1, &bprm.filename, &bprm);
1871 retval = copy_strings32(bprm.envc, envp, &bprm);
1875 retval = copy_strings32(bprm.argc, argv, &bprm);
1879 retval = search_binary_handler(&bprm,regs);
1881 /* execve success */
1882 security_bprm_free(&bprm);
1887 /* Something went wrong, return the inode and free the argument pages*/
1888 for (i = 0 ; i < MAX_ARG_PAGES ; i++) {
1889 struct page * page = bprm.page[i];
1895 security_bprm_free(&bprm);
1903 allow_write_access(bprm.file);
1909 long sys32_execve(unsigned long a0, unsigned long a1, unsigned long a2,
1910 unsigned long a3, unsigned long a4, unsigned long a5,
1911 struct pt_regs *regs)
1916 filename = getname((char *) a0);
1917 error = PTR_ERR(filename);
1918 if (IS_ERR(filename))
1920 if (regs->msr & MSR_FP)
1921 giveup_fpu(current);
1922 #ifdef CONFIG_ALTIVEC
1923 if (regs->msr & MSR_VEC)
1924 giveup_altivec(current);
1925 #endif /* CONFIG_ALTIVEC */
1927 error = do_execve32(filename, (u32*) a1, (u32*) a2, regs);
1930 current->ptrace &= ~PT_DTRACE;
1937 /* Set up a thread for executing a new program. */
1938 void start_thread32(struct pt_regs* regs, unsigned long nip, unsigned long sp)
1941 memset(regs->gpr, 0, sizeof(regs->gpr));
1942 memset(®s->ctr, 0, 4 * sizeof(regs->ctr));
1945 regs->msr = MSR_USER32;
1947 if (last_task_used_math == current)
1948 last_task_used_math = 0;
1949 #endif /* CONFIG_SMP */
1950 current->thread.fpscr = 0;
1951 memset(current->thread.fpr, 0, sizeof(current->thread.fpr));
1952 #ifdef CONFIG_ALTIVEC
1954 if (last_task_used_altivec == current)
1955 last_task_used_altivec = 0;
1956 #endif /* CONFIG_SMP */
1957 memset(current->thread.vr, 0, sizeof(current->thread.vr));
1958 current->thread.vscr.u[0] = 0;
1959 current->thread.vscr.u[1] = 0;
1960 current->thread.vscr.u[2] = 0;
1961 current->thread.vscr.u[3] = 0x00010000; /* Java mode disabled */
1962 current->thread.vrsave = 0;
1963 current->thread.used_vr = 0;
1964 #endif /* CONFIG_ALTIVEC */
1967 /* Note: it is necessary to treat option as an unsigned int,
1968 * with the corresponding cast to a signed int to insure that the
1969 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
1970 * and the register representation of a signed int (msr in 64-bit mode) is performed.
1972 asmlinkage long sys32_prctl(u32 option, u32 arg2, u32 arg3, u32 arg4, u32 arg5)
1974 return sys_prctl((int)option,
1975 (unsigned long) arg2,
1976 (unsigned long) arg3,
1977 (unsigned long) arg4,
1978 (unsigned long) arg5);
1981 /* Note: it is necessary to treat pid as an unsigned int,
1982 * with the corresponding cast to a signed int to insure that the
1983 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
1984 * and the register representation of a signed int (msr in 64-bit mode) is performed.
1986 asmlinkage long sys32_sched_rr_get_interval(u32 pid, struct compat_timespec *interval)
1990 mm_segment_t old_fs = get_fs ();
1993 ret = sys_sched_rr_get_interval((int)pid, &t);
1995 if (put_compat_timespec(&t, interval))
2000 asmlinkage int sys32_pciconfig_read(u32 bus, u32 dfn, u32 off, u32 len, u32 ubuf)
2002 return sys_pciconfig_read((unsigned long) bus,
2003 (unsigned long) dfn,
2004 (unsigned long) off,
2005 (unsigned long) len,
2006 (unsigned char *)AA(ubuf));
2009 asmlinkage int sys32_pciconfig_write(u32 bus, u32 dfn, u32 off, u32 len, u32 ubuf)
2011 return sys_pciconfig_write((unsigned long) bus,
2012 (unsigned long) dfn,
2013 (unsigned long) off,
2014 (unsigned long) len,
2015 (unsigned char *)AA(ubuf));
2018 #define IOBASE_BRIDGE_NUMBER 0
2019 #define IOBASE_MEMORY 1
2021 #define IOBASE_ISA_IO 3
2022 #define IOBASE_ISA_MEM 4
2024 asmlinkage int sys32_pciconfig_iobase(u32 which, u32 in_bus, u32 in_devfn)
2026 struct pci_controller* hose;
2027 struct list_head *ln;
2028 struct pci_bus *bus = NULL;
2029 struct device_node *hose_node;
2031 /* Argh ! Please forgive me for that hack, but that's the
2032 * simplest way to get existing XFree to not lockup on some
2033 * G5 machines... So when something asks for bus 0 io base
2034 * (bus 0 is HT root), we return the AGP one instead.
2036 #ifdef CONFIG_PPC_PMAC
2037 if (systemcfg->platform == PLATFORM_POWERMAC &&
2038 machine_is_compatible("MacRISC4"))
2041 #endif /* CONFIG_PPC_PMAC */
2043 /* That syscall isn't quite compatible with PCI domains, but it's
2044 * used on pre-domains setup. We return the first match
2047 for (ln = pci_root_buses.next; ln != &pci_root_buses; ln = ln->next) {
2048 bus = pci_bus_b(ln);
2049 if (in_bus >= bus->number && in_bus < (bus->number + bus->subordinate))
2053 if (bus == NULL || bus->sysdata == NULL)
2056 hose_node = (struct device_node *)bus->sysdata;
2057 hose = hose_node->phb;
2060 case IOBASE_BRIDGE_NUMBER:
2061 return (long)hose->first_busno;
2063 return (long)hose->pci_mem_offset;
2065 return (long)hose->io_base_phys;
2067 return (long)isa_io_base;
2068 case IOBASE_ISA_MEM:
2076 asmlinkage int ppc64_newuname(struct new_utsname * name)
2078 int errno = sys_newuname(name);
2080 if (current->personality == PER_LINUX32 && !errno) {
2081 if(copy_to_user(name->machine, "ppc\0\0", 8)) {
2088 asmlinkage int ppc64_personality(unsigned long personality)
2091 if (current->personality == PER_LINUX32 && personality == PER_LINUX)
2092 personality = PER_LINUX32;
2093 ret = sys_personality(personality);
2094 if (ret == PER_LINUX32)
2101 /* Note: it is necessary to treat mode as an unsigned int,
2102 * with the corresponding cast to a signed int to insure that the
2103 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
2104 * and the register representation of a signed int (msr in 64-bit mode) is performed.
2106 asmlinkage long sys32_access(const char * filename, u32 mode)
2108 return sys_access(filename, (int)mode);
2112 /* Note: it is necessary to treat mode as an unsigned int,
2113 * with the corresponding cast to a signed int to insure that the
2114 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
2115 * and the register representation of a signed int (msr in 64-bit mode) is performed.
2117 asmlinkage long sys32_creat(const char * pathname, u32 mode)
2119 return sys_creat(pathname, (int)mode);
2123 /* Note: it is necessary to treat pid and options as unsigned ints,
2124 * with the corresponding cast to a signed int to insure that the
2125 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
2126 * and the register representation of a signed int (msr in 64-bit mode) is performed.
2128 asmlinkage long sys32_waitpid(u32 pid, unsigned int * stat_addr, u32 options)
2130 return sys_waitpid((int)pid, stat_addr, (int)options);
2134 /* Note: it is necessary to treat gidsetsize as an unsigned int,
2135 * with the corresponding cast to a signed int to insure that the
2136 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
2137 * and the register representation of a signed int (msr in 64-bit mode) is performed.
2139 asmlinkage long sys32_getgroups(u32 gidsetsize, gid_t *grouplist)
2141 return sys_getgroups((int)gidsetsize, grouplist);
2145 /* Note: it is necessary to treat pid as an unsigned int,
2146 * with the corresponding cast to a signed int to insure that the
2147 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
2148 * and the register representation of a signed int (msr in 64-bit mode) is performed.
2150 asmlinkage long sys32_getpgid(u32 pid)
2152 return sys_getpgid((int)pid);
2156 /* Note: it is necessary to treat which and who as unsigned ints,
2157 * with the corresponding cast to a signed int to insure that the
2158 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
2159 * and the register representation of a signed int (msr in 64-bit mode) is performed.
2161 asmlinkage long sys32_getpriority(u32 which, u32 who)
2163 return sys_getpriority((int)which, (int)who);
2167 /* Note: it is necessary to treat pid as an unsigned int,
2168 * with the corresponding cast to a signed int to insure that the
2169 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
2170 * and the register representation of a signed int (msr in 64-bit mode) is performed.
2172 asmlinkage long sys32_getsid(u32 pid)
2174 return sys_getsid((int)pid);
2178 /* Note: it is necessary to treat pid and sig as unsigned ints,
2179 * with the corresponding cast to a signed int to insure that the
2180 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
2181 * and the register representation of a signed int (msr in 64-bit mode) is performed.
2183 asmlinkage long sys32_kill(u32 pid, u32 sig)
2185 return sys_kill((int)pid, (int)sig);
2189 /* Note: it is necessary to treat mode as an unsigned int,
2190 * with the corresponding cast to a signed int to insure that the
2191 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
2192 * and the register representation of a signed int (msr in 64-bit mode) is performed.
2194 asmlinkage long sys32_mkdir(const char * pathname, u32 mode)
2196 return sys_mkdir(pathname, (int)mode);
2199 long sys32_nice(u32 increment)
2201 /* sign extend increment */
2202 return sys_nice((int)increment);
2205 off_t ppc32_lseek(unsigned int fd, u32 offset, unsigned int origin)
2208 return sys_lseek(fd, (int)offset, origin);
2212 * This is just a version for 32-bit applications which does
2213 * not force O_LARGEFILE on.
2215 long sys32_open(const char * filename, int flags, int mode)
2220 tmp = getname(filename);
2223 fd = get_unused_fd();
2225 struct file * f = filp_open(tmp, flags, mode);
2242 /* Note: it is necessary to treat bufsiz as an unsigned int,
2243 * with the corresponding cast to a signed int to insure that the
2244 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
2245 * and the register representation of a signed int (msr in 64-bit mode) is performed.
2247 asmlinkage long sys32_readlink(const char * path, char * buf, u32 bufsiz)
2249 return sys_readlink(path, buf, (int)bufsiz);
2252 /* Note: it is necessary to treat option as an unsigned int,
2253 * with the corresponding cast to a signed int to insure that the
2254 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
2255 * and the register representation of a signed int (msr in 64-bit mode) is performed.
2257 asmlinkage long sys32_sched_get_priority_max(u32 policy)
2259 return sys_sched_get_priority_max((int)policy);
2263 /* Note: it is necessary to treat policy as an unsigned int,
2264 * with the corresponding cast to a signed int to insure that the
2265 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
2266 * and the register representation of a signed int (msr in 64-bit mode) is performed.
2268 asmlinkage long sys32_sched_get_priority_min(u32 policy)
2270 return sys_sched_get_priority_min((int)policy);
2274 /* Note: it is necessary to treat pid as an unsigned int,
2275 * with the corresponding cast to a signed int to insure that the
2276 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
2277 * and the register representation of a signed int (msr in 64-bit mode) is performed.
2279 asmlinkage long sys32_sched_getparam(u32 pid, struct sched_param *param)
2281 return sys_sched_getparam((int)pid, param);
2285 /* Note: it is necessary to treat pid as an unsigned int,
2286 * with the corresponding cast to a signed int to insure that the
2287 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
2288 * and the register representation of a signed int (msr in 64-bit mode) is performed.
2290 asmlinkage long sys32_sched_getscheduler(u32 pid)
2292 return sys_sched_getscheduler((int)pid);
2296 /* Note: it is necessary to treat pid as an unsigned int,
2297 * with the corresponding cast to a signed int to insure that the
2298 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
2299 * and the register representation of a signed int (msr in 64-bit mode) is performed.
2301 asmlinkage long sys32_sched_setparam(u32 pid, struct sched_param *param)
2303 return sys_sched_setparam((int)pid, param);
2307 /* Note: it is necessary to treat pid and policy as unsigned ints,
2308 * with the corresponding cast to a signed int to insure that the
2309 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
2310 * and the register representation of a signed int (msr in 64-bit mode) is performed.
2312 asmlinkage long sys32_sched_setscheduler(u32 pid, u32 policy, struct sched_param *param)
2314 return sys_sched_setscheduler((int)pid, (int)policy, param);
2318 /* Note: it is necessary to treat len as an unsigned int,
2319 * with the corresponding cast to a signed int to insure that the
2320 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
2321 * and the register representation of a signed int (msr in 64-bit mode) is performed.
2323 asmlinkage long sys32_setdomainname(char *name, u32 len)
2325 return sys_setdomainname(name, (int)len);
2329 /* Note: it is necessary to treat gidsetsize as an unsigned int,
2330 * with the corresponding cast to a signed int to insure that the
2331 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
2332 * and the register representation of a signed int (msr in 64-bit mode) is performed.
2334 asmlinkage long sys32_setgroups(u32 gidsetsize, gid_t *grouplist)
2336 return sys_setgroups((int)gidsetsize, grouplist);
2340 asmlinkage long sys32_sethostname(char *name, u32 len)
2342 /* sign extend len */
2343 return sys_sethostname(name, (int)len);
2347 /* Note: it is necessary to treat pid and pgid as unsigned ints,
2348 * with the corresponding cast to a signed int to insure that the
2349 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
2350 * and the register representation of a signed int (msr in 64-bit mode) is performed.
2352 asmlinkage long sys32_setpgid(u32 pid, u32 pgid)
2354 return sys_setpgid((int)pid, (int)pgid);
2358 long sys32_setpriority(u32 which, u32 who, u32 niceval)
2360 /* sign extend which, who and niceval */
2361 return sys_setpriority((int)which, (int)who, (int)niceval);
2364 /* Note: it is necessary to treat newmask as an unsigned int,
2365 * with the corresponding cast to a signed int to insure that the
2366 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
2367 * and the register representation of a signed int (msr in 64-bit mode) is performed.
2369 asmlinkage long sys32_ssetmask(u32 newmask)
2371 return sys_ssetmask((int) newmask);
2374 long sys32_syslog(u32 type, char * buf, u32 len)
2376 /* sign extend len */
2377 return sys_syslog(type, buf, (int)len);
2381 /* Note: it is necessary to treat mask as an unsigned int,
2382 * with the corresponding cast to a signed int to insure that the
2383 * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
2384 * and the register representation of a signed int (msr in 64-bit mode) is performed.
2386 asmlinkage long sys32_umask(u32 mask)
2388 return sys_umask((int)mask);
2391 struct __sysctl_args32 {
2401 extern asmlinkage long sys32_sysctl(struct __sysctl_args32 *args)
2403 struct __sysctl_args32 tmp;
2405 size_t oldlen, *oldlenp = NULL;
2406 unsigned long addr = (((long)&args->__unused[0]) + 7) & ~7;
2408 if (copy_from_user(&tmp, args, sizeof(tmp)))
2411 if (tmp.oldval && tmp.oldlenp) {
2412 /* Duh, this is ugly and might not work if sysctl_args
2413 is in read-only memory, but do_sysctl does indirectly
2414 a lot of uaccess in both directions and we'd have to
2415 basically copy the whole sysctl.c here, and
2416 glibc's __sysctl uses rw memory for the structure
2418 if (get_user(oldlen, (u32 *)A(tmp.oldlenp)) ||
2419 put_user(oldlen, (size_t *)addr))
2421 oldlenp = (size_t *)addr;
2425 error = do_sysctl((int *)A(tmp.name), tmp.nlen, (void *)A(tmp.oldval),
2426 oldlenp, (void *)A(tmp.newval), tmp.newlen);
2430 if (get_user(oldlen, (size_t *)addr) ||
2431 put_user(oldlen, (u32 *)A(tmp.oldlenp)))
2434 copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused));
2439 asmlinkage long sys32_time(compat_time_t* tloc)
2445 do_gettimeofday( &tv );
2449 if (put_user(secs,tloc))
2456 int sys32_olduname(struct oldold_utsname * name)
2462 if (!access_ok(VERIFY_WRITE,name,sizeof(struct oldold_utsname)))
2465 down_read(&uts_sem);
2466 error = __copy_to_user(&name->sysname,&system_utsname.sysname,__OLD_UTS_LEN);
2467 error -= __put_user(0,name->sysname+__OLD_UTS_LEN);
2468 error -= __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN);
2469 error -= __put_user(0,name->nodename+__OLD_UTS_LEN);
2470 error -= __copy_to_user(&name->release,&system_utsname.release,__OLD_UTS_LEN);
2471 error -= __put_user(0,name->release+__OLD_UTS_LEN);
2472 error -= __copy_to_user(&name->version,&system_utsname.version,__OLD_UTS_LEN);
2473 error -= __put_user(0,name->version+__OLD_UTS_LEN);
2474 error -= __copy_to_user(&name->machine,&system_utsname.machine,__OLD_UTS_LEN);
2475 error = __put_user(0,name->machine+__OLD_UTS_LEN);
2478 error = error ? -EFAULT : 0;
2483 unsigned long sys32_mmap2(unsigned long addr, size_t len,
2484 unsigned long prot, unsigned long flags,
2485 unsigned long fd, unsigned long pgoff)
2487 /* This should remain 12 even if PAGE_SIZE changes */
2488 return sys_mmap(addr, len, prot, flags, fd, pgoff << 12);
2491 int get_compat_timeval(struct timeval *tv, struct compat_timeval *ctv)
2493 return (verify_area(VERIFY_READ, ctv, sizeof(*ctv)) ||
2494 __get_user(tv->tv_sec, &ctv->tv_sec) ||
2495 __get_user(tv->tv_usec, &ctv->tv_usec)) ? -EFAULT : 0;
2498 long sys32_utimes(char *filename, struct compat_timeval *tvs)
2501 struct timeval ktvs[2];
2502 mm_segment_t old_fs;
2505 kfilename = getname(filename);
2506 ret = PTR_ERR(kfilename);
2507 if (!IS_ERR(kfilename)) {
2509 if (get_compat_timeval(&ktvs[0], &tvs[0]) ||
2510 get_compat_timeval(&ktvs[1], &tvs[1]))
2516 ret = do_utimes(kfilename, (tvs ? &ktvs[0] : NULL));
2524 long sys32_tgkill(u32 tgid, u32 pid, int sig)
2526 /* sign extend tgid, pid */
2527 return sys_tgkill((int)tgid, (int)pid, sig);
2531 * long long munging:
2532 * The 32 bit ABI passes long longs in an odd even register pair.
2535 compat_ssize_t sys32_pread64(unsigned int fd, char *ubuf, compat_size_t count,
2536 u32 reg6, u32 poshi, u32 poslo)
2538 return sys_pread64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo);
2541 compat_ssize_t sys32_pwrite64(unsigned int fd, char *ubuf, compat_size_t count,
2542 u32 reg6, u32 poshi, u32 poslo)
2544 return sys_pwrite64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo);
2547 compat_ssize_t sys32_readahead(int fd, u32 r4, u32 offhi, u32 offlo, u32 count)
2549 return sys_readahead(fd, ((loff_t)offhi << 32) | offlo, count);
2552 asmlinkage int sys32_truncate64(const char * path, u32 reg4,
2553 unsigned long high, unsigned long low)
2555 return sys_truncate(path, (high << 32) | low);
2558 asmlinkage int sys32_ftruncate64(unsigned int fd, u32 reg4, unsigned long high,
2561 return sys_ftruncate(fd, (high << 32) | low);
2564 long ppc32_lookup_dcookie(u32 cookie_high, u32 cookie_low, char *buf,
2567 return sys_lookup_dcookie((u64)cookie_high << 32 | cookie_low,
2571 long ppc32_fadvise64(int fd, u32 unused, u32 offset_high, u32 offset_low,
2572 size_t len, int advice)
2574 return sys_fadvise64(fd, (u64)offset_high << 32 | offset_low, len,
2578 long ppc32_fadvise64_64(int fd, int advice, u32 offset_high, u32 offset_low,
2579 u32 len_high, u32 len_low)
2581 return sys_fadvise64(fd, (u64)offset_high << 32 | offset_low,
2582 (u64)len_high << 32 | len_low, advice);
2585 extern long sys_timer_create(clockid_t, sigevent_t *, timer_t *);
2587 long ppc32_timer_create(clockid_t clock,
2588 struct compat_sigevent __user *ev32,
2589 timer_t __user *timer_id)
2594 mm_segment_t savefs;
2597 return sys_timer_create(clock, NULL, timer_id);
2599 memset(&event, 0, sizeof(event));
2600 if (!access_ok(VERIFY_READ, ev32, sizeof(struct compat_sigevent))
2601 || __get_user(event.sigev_value.sival_int,
2602 &ev32->sigev_value.sival_int)
2603 || __get_user(event.sigev_signo, &ev32->sigev_signo)
2604 || __get_user(event.sigev_notify, &ev32->sigev_notify)
2605 || __get_user(event.sigev_notify_thread_id,
2606 &ev32->sigev_notify_thread_id))
2609 if (!access_ok(VERIFY_WRITE, timer_id, sizeof(timer_t)))
2614 err = sys_timer_create(clock, &event, &t);
2618 err = __put_user(t, timer_id);