1 files changed, 720 insertions, 0 deletions

diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
new file mode 100644
index 000000000000..613569018410
--- /dev/null
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -0,0 +1,720 @@
+/*
+ * sys_parisc32.c: Conversion between 32bit and 64bit native syscalls.
+ *
+ * Copyright (C) 2000-2001 Hewlett Packard Company
+ * Copyright (C) 2000 John Marvin
+ * Copyright (C) 2001 Matthew Wilcox
+ *
+ * These routines maintain argument size conversion between 32bit and 64bit
+ * environment. Based heavily on sys_ia32.c and sys_sparc32.c.
+ */
+
+#include <linux/config.h>
+#include <linux/compat.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/fs.h> 
+#include <linux/mm.h> 
+#include <linux/file.h> 
+#include <linux/signal.h>
+#include <linux/resource.h>
+#include <linux/times.h>
+#include <linux/utsname.h>
+#include <linux/time.h>
+#include <linux/timex.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.h>
+#include <linux/sem.h>
+#include <linux/msg.h>
+#include <linux/shm.h>
+#include <linux/slab.h>
+#include <linux/uio.h>
+#include <linux/nfs_fs.h>
+#include <linux/ncp_fs.h>
+#include <linux/sunrpc/svc.h>
+#include <linux/nfsd/nfsd.h>
+#include <linux/nfsd/cache.h>
+#include <linux/nfsd/xdr.h>
+#include <linux/nfsd/syscall.h>
+#include <linux/poll.h>
+#include <linux/personality.h>
+#include <linux/stat.h>
+#include <linux/highmem.h>
+#include <linux/highuid.h>
+#include <linux/mman.h>
+#include <linux/binfmts.h>
+#include <linux/namei.h>
+#include <linux/vfs.h>
+#include <linux/ptrace.h>
+#include <linux/swap.h>
+#include <linux/syscalls.h>
+
+#include <asm/types.h>
+#include <asm/uaccess.h>
+#include <asm/semaphore.h>
+#include <asm/mmu_context.h>
+
+#include "sys32.h"
+
+#undef DEBUG
+
+#ifdef DEBUG
+#define DBG(x)  printk x
+#else
+#define DBG(x)
+#endif
+
+/*
+ * sys32_execve() executes a new program.
+ */
+
+asmlinkage int sys32_execve(struct pt_regs *regs)
+{
+        int error;
+        char *filename;
+
+        DBG(("sys32_execve(%p) r26 = 0x%lx\n", regs, regs->gr[26]));
+        filename = getname((const char __user *) regs->gr[26]);
+        error = PTR_ERR(filename);
+        if (IS_ERR(filename))
+                goto out;
+        error = compat_do_execve(filename, compat_ptr(regs->gr[25]),
+                                 compat_ptr(regs->gr[24]), regs);
+        if (error == 0) {
+                task_lock(current);
+                current->ptrace &= ~PT_DTRACE;
+                task_unlock(current);
+        }
+        putname(filename);
+out:
+
+        return error;
+}
+
+asmlinkage long sys32_unimplemented(int r26, int r25, int r24, int r23,
+        int r22, int r21, int r20)
+{
+    printk(KERN_ERR "%s(%d): Unimplemented 32 on 64 syscall #%d!\n", 
+        current->comm, current->pid, r20);
+    return -ENOSYS;
+}
+
+#ifdef CONFIG_SYSCTL
+
+struct __sysctl_args32 {
+        u32 name;
+        int nlen;
+        u32 oldval;
+        u32 oldlenp;
+        u32 newval;
+        u32 newlen;
+        u32 __unused[4];
+};
+
+asmlinkage long sys32_sysctl(struct __sysctl_args32 __user *args)
+{
+        struct __sysctl_args32 tmp;
+        int error;
+        unsigned int oldlen32;
+        size_t oldlen, *oldlenp = NULL;
+        unsigned long addr = (((long __force)&args->__unused[0]) + 7) & ~7;
+        extern int do_sysctl(int *name, int nlen, void *oldval, size_t *oldlenp,
+               void *newval, size_t newlen);
+
+        DBG(("sysctl32(%p)\n", args));
+
+        if (copy_from_user(&tmp, args, sizeof(tmp)))
+                return -EFAULT;
+
+        if (tmp.oldval && tmp.oldlenp) {
+                /* Duh, this is ugly and might not work if sysctl_args
+                   is in read-only memory, but do_sysctl does indirectly
+                   a lot of uaccess in both directions and we'd have to
+                   basically copy the whole sysctl.c here, and
+                   glibc's __sysctl uses rw memory for the structure
+                   anyway.  */
+                /* a possibly better hack than this, which will avoid the
+                 * problem if the struct is read only, is to push the
+                 * 'oldlen' value out to the user's stack instead. -PB
+                 */
+                if (get_user(oldlen32, (u32 *)(u64)tmp.oldlenp))
+                        return -EFAULT;
+                oldlen = oldlen32;
+                if (put_user(oldlen, (size_t *)addr))
+                        return -EFAULT;
+                oldlenp = (size_t *)addr;
+        }
+
+        lock_kernel();
+        error = do_sysctl((int *)(u64)tmp.name, tmp.nlen, (void *)(u64)tmp.oldval,
+                          oldlenp, (void *)(u64)tmp.newval, tmp.newlen);
+        unlock_kernel();
+        if (oldlenp) {
+                if (!error) {
+                        if (get_user(oldlen, (size_t *)addr)) {
+                                error = -EFAULT;
+                        } else {
+                                oldlen32 = oldlen;
+                                if (put_user(oldlen32, (u32 *)(u64)tmp.oldlenp))
+                                        error = -EFAULT;
+                        }
+                }
+                if (copy_to_user(&args->__unused[0], tmp.__unused, sizeof(tmp.__unused)))
+                        error = -EFAULT;
+        }
+        return error;
+}
+
+#endif /* CONFIG_SYSCTL */
+
+asmlinkage long sys32_sched_rr_get_interval(pid_t pid,
+        struct compat_timespec __user *interval)
+{
+        struct timespec t;
+        int ret;
+
+        KERNEL_SYSCALL(ret, sys_sched_rr_get_interval, pid, (struct timespec __user *)&t);
+        if (put_compat_timespec(&t, interval))
+                return -EFAULT;
+        return ret;
+}
+
+static int
+put_compat_timeval(struct compat_timeval __user *u, struct timeval *t)
+{
+        struct compat_timeval t32;
+        t32.tv_sec = t->tv_sec;
+        t32.tv_usec = t->tv_usec;
+        return copy_to_user(u, &t32, sizeof t32);
+}
+
+static inline long get_ts32(struct timespec *o, struct compat_timeval __user *i)
+{
+        long usec;
+
+        if (__get_user(o->tv_sec, &i->tv_sec))
+                return -EFAULT;
+        if (__get_user(usec, &i->tv_usec))
+                return -EFAULT;
+        o->tv_nsec = usec * 1000;
+        return 0;
+}
+
+asmlinkage int
+sys32_gettimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
+{
+    extern void do_gettimeofday(struct timeval *tv);
+
+    if (tv) {
+            struct timeval ktv;
+            do_gettimeofday(&ktv);
+            if (put_compat_timeval(tv, &ktv))
+                    return -EFAULT;
+    }
+    if (tz) {
+            extern struct timezone sys_tz;
+            if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
+                    return -EFAULT;
+    }
+    return 0;
+}
+
+asmlinkage 
+int sys32_settimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
+{
+        struct timespec kts;
+        struct timezone ktz;
+
+        if (tv) {
+                if (get_ts32(&kts, tv))
+                        return -EFAULT;
+        }
+        if (tz) {
+                if (copy_from_user(&ktz, tz, sizeof(ktz)))
+                        return -EFAULT;
+        }
+
+        return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL);
+}
+
+int cp_compat_stat(struct kstat *stat, struct compat_stat __user *statbuf)
+{
+        int err;
+
+        if (stat->size > MAX_NON_LFS || !new_valid_dev(stat->dev) ||
+            !new_valid_dev(stat->rdev))
+                return -EOVERFLOW;
+
+        err  = put_user(new_encode_dev(stat->dev), &statbuf->st_dev);
+        err |= put_user(stat->ino, &statbuf->st_ino);
+        err |= put_user(stat->mode, &statbuf->st_mode);
+        err |= put_user(stat->nlink, &statbuf->st_nlink);
+        err |= put_user(0, &statbuf->st_reserved1);
+        err |= put_user(0, &statbuf->st_reserved2);
+        err |= put_user(new_encode_dev(stat->rdev), &statbuf->st_rdev);
+        err |= put_user(stat->size, &statbuf->st_size);
+        err |= put_user(stat->atime.tv_sec, &statbuf->st_atime);
+        err |= put_user(stat->atime.tv_nsec, &statbuf->st_atime_nsec);
+        err |= put_user(stat->mtime.tv_sec, &statbuf->st_mtime);
+        err |= put_user(stat->mtime.tv_nsec, &statbuf->st_mtime_nsec);
+        err |= put_user(stat->ctime.tv_sec, &statbuf->st_ctime);
+        err |= put_user(stat->ctime.tv_nsec, &statbuf->st_ctime_nsec);
+        err |= put_user(stat->blksize, &statbuf->st_blksize);
+        err |= put_user(stat->blocks, &statbuf->st_blocks);
+        err |= put_user(0, &statbuf->__unused1);
+        err |= put_user(0, &statbuf->__unused2);
+        err |= put_user(0, &statbuf->__unused3);
+        err |= put_user(0, &statbuf->__unused4);
+        err |= put_user(0, &statbuf->__unused5);
+        err |= put_user(0, &statbuf->st_fstype); /* not avail */
+        err |= put_user(0, &statbuf->st_realdev); /* not avail */
+        err |= put_user(0, &statbuf->st_basemode); /* not avail */
+        err |= put_user(0, &statbuf->st_spareshort);
+        err |= put_user(stat->uid, &statbuf->st_uid);
+        err |= put_user(stat->gid, &statbuf->st_gid);
+        err |= put_user(0, &statbuf->st_spare4[0]);
+        err |= put_user(0, &statbuf->st_spare4[1]);
+        err |= put_user(0, &statbuf->st_spare4[2]);
+
+        return err;
+}
+
+struct linux32_dirent {
+        u32             d_ino;
+        compat_off_t    d_off;
+        u16             d_reclen;
+        char            d_name[1];
+};
+
+struct old_linux32_dirent {
+        u32     d_ino;
+        u32     d_offset;
+        u16     d_namlen;
+        char    d_name[1];
+};
+
+struct getdents32_callback {
+        struct linux32_dirent __user * current_dir;
+        struct linux32_dirent __user * previous;
+        int count;
+        int error;
+};
+
+struct readdir32_callback {
+        struct old_linux32_dirent __user * dirent;
+        int count;
+};
+
+#define ROUND_UP(x,a)   ((__typeof__(x))(((unsigned long)(x) + ((a) - 1)) & ~((a) - 1)))
+#define NAME_OFFSET(de) ((int) ((de)->d_name - (char __user *) (de)))
+static int
+filldir32 (void *__buf, const char *name, int namlen, loff_t offset, ino_t ino,
+           unsigned int d_type)
+{
+        struct linux32_dirent __user * dirent;
+        struct getdents32_callback * buf = (struct getdents32_callback *) __buf;
+        int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1, 4);
+
+        buf->error = -EINVAL;   /* only used if we fail.. */
+        if (reclen > buf->count)
+                return -EINVAL;
+        dirent = buf->previous;
+        if (dirent)
+                put_user(offset, &dirent->d_off);
+        dirent = buf->current_dir;
+        buf->previous = dirent;
+        put_user(ino, &dirent->d_ino);
+        put_user(reclen, &dirent->d_reclen);
+        copy_to_user(dirent->d_name, name, namlen);
+        put_user(0, dirent->d_name + namlen);
+        dirent = ((void __user *)dirent) + reclen;
+        buf->current_dir = dirent;
+        buf->count -= reclen;
+        return 0;
+}
+
+asmlinkage long
+sys32_getdents (unsigned int fd, void __user * dirent, unsigned int count)
+{
+        struct file * file;
+        struct linux32_dirent __user * lastdirent;
+        struct getdents32_callback buf;
+        int error;
+
+        error = -EBADF;
+        file = fget(fd);
+        if (!file)
+                goto out;
+
+        buf.current_dir = (struct linux32_dirent __user *) dirent;
+        buf.previous = NULL;
+        buf.count = count;
+        buf.error = 0;
+
+        error = vfs_readdir(file, filldir32, &buf);
+        if (error < 0)
+                goto out_putf;
+        error = buf.error;
+        lastdirent = buf.previous;
+        if (lastdirent) {
+                put_user(file->f_pos, &lastdirent->d_off);
+                error = count - buf.count;
+        }
+
+out_putf:
+        fput(file);
+out:
+        return error;
+}
+
+static int
+fillonedir32 (void * __buf, const char * name, int namlen, loff_t offset, ino_t ino,
+              unsigned int d_type)
+{
+        struct readdir32_callback * buf = (struct readdir32_callback *) __buf;
+        struct old_linux32_dirent __user * dirent;
+
+        if (buf->count)
+                return -EINVAL;
+        buf->count++;
+        dirent = buf->dirent;
+        put_user(ino, &dirent->d_ino);
+        put_user(offset, &dirent->d_offset);
+        put_user(namlen, &dirent->d_namlen);
+        copy_to_user(dirent->d_name, name, namlen);
+        put_user(0, dirent->d_name + namlen);
+        return 0;
+}
+
+asmlinkage long
+sys32_readdir (unsigned int fd, void __user * dirent, unsigned int count)
+{
+        int error;
+        struct file * file;
+        struct readdir32_callback buf;
+
+        error = -EBADF;
+        file = fget(fd);
+        if (!file)
+                goto out;
+
+        buf.count = 0;
+        buf.dirent = dirent;
+
+        error = vfs_readdir(file, fillonedir32, &buf);
+        if (error >= 0)
+                error = buf.count;
+        fput(file);
+out:
+        return error;
+}
+
+/*** copied from mips64 ***/
+/*
+ * Ooo, nasty.  We need here to frob 32-bit unsigned longs to
+ * 64-bit unsigned longs.
+ */
+
+static inline int
+get_fd_set32(unsigned long n, u32 *ufdset, unsigned long *fdset)
+{
+        n = (n + 8*sizeof(u32) - 1) / (8*sizeof(u32));
+        if (ufdset) {
+                unsigned long odd;
+
+                if (!access_ok(VERIFY_WRITE, ufdset, n*sizeof(u32)))
+                        return -EFAULT;
+
+                odd = n & 1UL;
+                n &= ~1UL;
+                while (n) {
+                        unsigned long h, l;
+                        __get_user(l, ufdset);
+                        __get_user(h, ufdset+1);
+                        ufdset += 2;
+                        *fdset++ = h << 32 | l;
+                        n -= 2;
+                }
+                if (odd)
+                        __get_user(*fdset, ufdset);
+        } else {
+                /* Tricky, must clear full unsigned long in the
+                 * kernel fdset at the end, this makes sure that
+                 * actually happens.
+                 */
+                memset(fdset, 0, ((n + 1) & ~1)*sizeof(u32));
+        }
+        return 0;
+}
+
+static inline void
+set_fd_set32(unsigned long n, u32 *ufdset, unsigned long *fdset)
+{
+        unsigned long odd;
+        n = (n + 8*sizeof(u32) - 1) / (8*sizeof(u32));
+
+        if (!ufdset)
+                return;
+
+        odd = n & 1UL;
+        n &= ~1UL;
+        while (n) {
+                unsigned long h, l;
+                l = *fdset++;
+                h = l >> 32;
+                __put_user(l, ufdset);
+                __put_user(h, ufdset+1);
+                ufdset += 2;
+                n -= 2;
+        }
+        if (odd)
+                __put_user(*fdset, ufdset);
+}
+
+struct msgbuf32 {
+    int mtype;
+    char mtext[1];
+};
+
+asmlinkage long sys32_msgsnd(int msqid,
+                                struct msgbuf32 __user *umsgp32,
+                                size_t msgsz, int msgflg)
+{
+        struct msgbuf *mb;
+        struct msgbuf32 mb32;
+        int err;
+
+        if ((mb = kmalloc(msgsz + sizeof *mb + 4, GFP_KERNEL)) == NULL)
+                return -ENOMEM;
+
+        err = get_user(mb32.mtype, &umsgp32->mtype);
+        mb->mtype = mb32.mtype;
+        err |= copy_from_user(mb->mtext, &umsgp32->mtext, msgsz);
+
+        if (err)
+                err = -EFAULT;
+        else
+                KERNEL_SYSCALL(err, sys_msgsnd, msqid, (struct msgbuf __user *)mb, msgsz, msgflg);
+
+        kfree(mb);
+        return err;
+}
+
+asmlinkage long sys32_msgrcv(int msqid,
+                                struct msgbuf32 __user *umsgp32,
+                                size_t msgsz, long msgtyp, int msgflg)
+{
+        struct msgbuf *mb;
+        struct msgbuf32 mb32;
+        int err, len;
+
+        if ((mb = kmalloc(msgsz + sizeof *mb + 4, GFP_KERNEL)) == NULL)
+                return -ENOMEM;
+
+        KERNEL_SYSCALL(err, sys_msgrcv, msqid, (struct msgbuf __user *)mb, msgsz, msgtyp, msgflg);
+
+        if (err >= 0) {
+                len = err;
+                mb32.mtype = mb->mtype;
+                err = put_user(mb32.mtype, &umsgp32->mtype);
+                err |= copy_to_user(&umsgp32->mtext, mb->mtext, len);
+                if (err)
+                        err = -EFAULT;
+                else
+                        err = len;
+        }
+
+        kfree(mb);
+        return err;
+}
+
+asmlinkage int sys32_sendfile(int out_fd, int in_fd, compat_off_t __user *offset, s32 count)
+{
+        mm_segment_t old_fs = get_fs();
+        int ret;
+        off_t of;
+
+        if (offset && get_user(of, offset))
+                return -EFAULT;
+
+        set_fs(KERNEL_DS);
+        ret = sys_sendfile(out_fd, in_fd, offset ? (off_t __user *)&of : NULL, count);
+        set_fs(old_fs);
+
+        if (offset && put_user(of, offset))
+                return -EFAULT;
+
+        return ret;
+}
+
+asmlinkage int sys32_sendfile64(int out_fd, int in_fd, compat_loff_t __user *offset, s32 count)
+{
+        mm_segment_t old_fs = get_fs();
+        int ret;
+        loff_t lof;
+        
+        if (offset && get_user(lof, offset))
+                return -EFAULT;
+                
+        set_fs(KERNEL_DS);
+        ret = sys_sendfile64(out_fd, in_fd, offset ? (loff_t __user *)&lof : NULL, count);
+        set_fs(old_fs);
+        
+        if (offset && put_user(lof, offset))
+                return -EFAULT;
+                
+        return ret;
+}
+
+
+struct timex32 {
+        unsigned int modes;     /* mode selector */
+        int offset;             /* time offset (usec) */
+        int freq;               /* frequency offset (scaled ppm) */
+        int maxerror;           /* maximum error (usec) */
+        int esterror;           /* estimated error (usec) */
+        int status;             /* clock command/status */
+        int constant;           /* pll time constant */
+        int precision;          /* clock precision (usec) (read only) */
+        int tolerance;          /* clock frequency tolerance (ppm)
+                                 * (read only)
+                                 */
+        struct compat_timeval time;     /* (read only) */
+        int tick;               /* (modified) usecs between clock ticks */
+
+        int ppsfreq;           /* pps frequency (scaled ppm) (ro) */
+        int jitter;            /* pps jitter (us) (ro) */
+        int shift;              /* interval duration (s) (shift) (ro) */
+        int stabil;            /* pps stability (scaled ppm) (ro) */
+        int jitcnt;            /* jitter limit exceeded (ro) */
+        int calcnt;            /* calibration intervals (ro) */
+        int errcnt;            /* calibration errors (ro) */
+        int stbcnt;            /* stability limit exceeded (ro) */
+
+        int  :32; int  :32; int  :32; int  :32;
+        int  :32; int  :32; int  :32; int  :32;
+        int  :32; int  :32; int  :32; int  :32;
+};
+
+asmlinkage long sys32_adjtimex(struct timex32 __user *txc_p32)
+{
+        struct timex txc;
+        struct timex32 t32;
+        int ret;
+        extern int do_adjtimex(struct timex *txc);
+
+        if(copy_from_user(&t32, txc_p32, sizeof(struct timex32)))
+                return -EFAULT;
+#undef CP
+#define CP(x) txc.x = t32.x
+        CP(modes); CP(offset); CP(freq); CP(maxerror); CP(esterror);
+        CP(status); CP(constant); CP(precision); CP(tolerance);
+        CP(time.tv_sec); CP(time.tv_usec); CP(tick); CP(ppsfreq); CP(jitter);
+        CP(shift); CP(stabil); CP(jitcnt); CP(calcnt); CP(errcnt);
+        CP(stbcnt);
+        ret = do_adjtimex(&txc);
+#undef CP
+#define CP(x) t32.x = txc.x
+        CP(modes); CP(offset); CP(freq); CP(maxerror); CP(esterror);
+        CP(status); CP(constant); CP(precision); CP(tolerance);
+        CP(time.tv_sec); CP(time.tv_usec); CP(tick); CP(ppsfreq); CP(jitter);
+        CP(shift); CP(stabil); CP(jitcnt); CP(calcnt); CP(errcnt);
+        CP(stbcnt);
+        return copy_to_user(txc_p32, &t32, sizeof(struct timex32)) ? -EFAULT : ret;
+}
+
+
+struct sysinfo32 {
+        s32 uptime;
+        u32 loads[3];
+        u32 totalram;
+        u32 freeram;
+        u32 sharedram;
+        u32 bufferram;
+        u32 totalswap;
+        u32 freeswap;
+        unsigned short procs;
+        u32 totalhigh;
+        u32 freehigh;
+        u32 mem_unit;
+        char _f[12];
+};
+
+/* We used to call sys_sysinfo and translate the result.  But sys_sysinfo
+ * undoes the good work done elsewhere, and rather than undoing the
+ * damage, I decided to just duplicate the code from sys_sysinfo here.
+ */
+
+asmlinkage int sys32_sysinfo(struct sysinfo32 __user *info)
+{
+        struct sysinfo val;
+        int err;
+        unsigned long seq;
+
+        /* We don't need a memset here because we copy the
+         * struct to userspace once element at a time.
+         */
+
+        do {
+                seq = read_seqbegin(&xtime_lock);
+                val.uptime = jiffies / HZ;
+
+                val.loads[0] = avenrun[0] << (SI_LOAD_SHIFT - FSHIFT);
+                val.loads[1] = avenrun[1] << (SI_LOAD_SHIFT - FSHIFT);
+                val.loads[2] = avenrun[2] << (SI_LOAD_SHIFT - FSHIFT);
+
+                val.procs = nr_threads;
+        } while (read_seqretry(&xtime_lock, seq));
+
+
+        si_meminfo(&val);
+        si_swapinfo(&val);
+        
+        err = put_user (val.uptime, &info->uptime);
+        err |= __put_user (val.loads[0], &info->loads[0]);
+        err |= __put_user (val.loads[1], &info->loads[1]);
+        err |= __put_user (val.loads[2], &info->loads[2]);
+        err |= __put_user (val.totalram, &info->totalram);
+        err |= __put_user (val.freeram, &info->freeram);
+        err |= __put_user (val.sharedram, &info->sharedram);
+        err |= __put_user (val.bufferram, &info->bufferram);
+        err |= __put_user (val.totalswap, &info->totalswap);
+        err |= __put_user (val.freeswap, &info->freeswap);
+        err |= __put_user (val.procs, &info->procs);
+        err |= __put_user (val.totalhigh, &info->totalhigh);
+        err |= __put_user (val.freehigh, &info->freehigh);
+        err |= __put_user (val.mem_unit, &info->mem_unit);
+        return err ? -EFAULT : 0;
+}
+
+
+/* lseek() needs a wrapper because 'offset' can be negative, but the top
+ * half of the argument has been zeroed by syscall.S.
+ */
+
+asmlinkage int sys32_lseek(unsigned int fd, int offset, unsigned int origin)
+{
+        return sys_lseek(fd, offset, origin);
+}
+
+asmlinkage long sys32_semctl(int semid, int semnum, int cmd, union semun arg)
+{
+        union semun u;
+        
+        if (cmd == SETVAL) {
+                /* Ugh.  arg is a union of int,ptr,ptr,ptr, so is 8 bytes.
+                 * The int should be in the first 4, but our argument
+                 * frobbing has left it in the last 4.
+                 */
+                u.val = *((int *)&arg + 1);
+                return sys_semctl (semid, semnum, cmd, u);
+        }
+        return sys_semctl (semid, semnum, cmd, arg);
+}
+
+long sys32_lookup_dcookie(u32 cookie_high, u32 cookie_low, char __user *buf,
+                          size_t len)
+{
+        return sys_lookup_dcookie((u64)cookie_high << 32 | cookie_low,
+                                  buf, len);
+}