Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 1118 insertions, 0 deletions

diff --git a/arch/sparc64/kernel/sys_sparc32.c b/arch/sparc64/kernel/sys_sparc32.c
new file mode 100644
index 000000000000..567c91c77b20
--- /dev/null
+++ b/arch/sparc64/kernel/sys_sparc32.c
@@ -0,0 +1,1118 @@
+/* $Id: sys_sparc32.c,v 1.184 2002/02/09 19:49:31 davem Exp $
+ * sys_sparc32.c: Conversion between 32bit and 64bit native syscalls.
+ *
+ * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
+ * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
+ *
+ * These routines maintain argument size conversion between 32bit and 64bit
+ * environment.
+ */
+
+#include <linux/config.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/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/quota.h>
+#include <linux/module.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/filter.h>
+#include <linux/highmem.h>
+#include <linux/highuid.h>
+#include <linux/mman.h>
+#include <linux/ipv6.h>
+#include <linux/in.h>
+#include <linux/icmpv6.h>
+#include <linux/syscalls.h>
+#include <linux/sysctl.h>
+#include <linux/binfmts.h>
+#include <linux/dnotify.h>
+#include <linux/security.h>
+#include <linux/compat.h>
+#include <linux/vfs.h>
+#include <linux/netfilter_ipv4/ip_tables.h>
+#include <linux/ptrace.h>
+#include <linux/highuid.h>
+
+#include <asm/types.h>
+#include <asm/ipc.h>
+#include <asm/uaccess.h>
+#include <asm/fpumacro.h>
+#include <asm/semaphore.h>
+#include <asm/mmu_context.h>
+
+asmlinkage long sys32_chown16(const char __user * filename, u16 user, u16 group)
+{
+        return sys_chown(filename, low2highuid(user), low2highgid(group));
+}
+
+asmlinkage long sys32_lchown16(const char __user * filename, u16 user, u16 group)
+{
+        return sys_lchown(filename, low2highuid(user), low2highgid(group));
+}
+
+asmlinkage long sys32_fchown16(unsigned int fd, u16 user, u16 group)
+{
+        return sys_fchown(fd, low2highuid(user), low2highgid(group));
+}
+
+asmlinkage long sys32_setregid16(u16 rgid, u16 egid)
+{
+        return sys_setregid(low2highgid(rgid), low2highgid(egid));
+}
+
+asmlinkage long sys32_setgid16(u16 gid)
+{
+        return sys_setgid((gid_t)gid);
+}
+
+asmlinkage long sys32_setreuid16(u16 ruid, u16 euid)
+{
+        return sys_setreuid(low2highuid(ruid), low2highuid(euid));
+}
+
+asmlinkage long sys32_setuid16(u16 uid)
+{
+        return sys_setuid((uid_t)uid);
+}
+
+asmlinkage long sys32_setresuid16(u16 ruid, u16 euid, u16 suid)
+{
+        return sys_setresuid(low2highuid(ruid), low2highuid(euid),
+                low2highuid(suid));
+}
+
+asmlinkage long sys32_getresuid16(u16 __user *ruid, u16 __user *euid, u16 __user *suid)
+{
+        int retval;
+
+        if (!(retval = put_user(high2lowuid(current->uid), ruid)) &&
+            !(retval = put_user(high2lowuid(current->euid), euid)))
+                retval = put_user(high2lowuid(current->suid), suid);
+
+        return retval;
+}
+
+asmlinkage long sys32_setresgid16(u16 rgid, u16 egid, u16 sgid)
+{
+        return sys_setresgid(low2highgid(rgid), low2highgid(egid),
+                low2highgid(sgid));
+}
+
+asmlinkage long sys32_getresgid16(u16 __user *rgid, u16 __user *egid, u16 __user *sgid)
+{
+        int retval;
+
+        if (!(retval = put_user(high2lowgid(current->gid), rgid)) &&
+            !(retval = put_user(high2lowgid(current->egid), egid)))
+                retval = put_user(high2lowgid(current->sgid), sgid);
+
+        return retval;
+}
+
+asmlinkage long sys32_setfsuid16(u16 uid)
+{
+        return sys_setfsuid((uid_t)uid);
+}
+
+asmlinkage long sys32_setfsgid16(u16 gid)
+{
+        return sys_setfsgid((gid_t)gid);
+}
+
+static int groups16_to_user(u16 __user *grouplist, struct group_info *group_info)
+{
+        int i;
+        u16 group;
+
+        for (i = 0; i < group_info->ngroups; i++) {
+                group = (u16)GROUP_AT(group_info, i);
+                if (put_user(group, grouplist+i))
+                        return -EFAULT;
+        }
+
+        return 0;
+}
+
+static int groups16_from_user(struct group_info *group_info, u16 __user *grouplist)
+{
+        int i;
+        u16 group;
+
+        for (i = 0; i < group_info->ngroups; i++) {
+                if (get_user(group, grouplist+i))
+                        return  -EFAULT;
+                GROUP_AT(group_info, i) = (gid_t)group;
+        }
+
+        return 0;
+}
+
+asmlinkage long sys32_getgroups16(int gidsetsize, u16 __user *grouplist)
+{
+        int i;
+
+        if (gidsetsize < 0)
+                return -EINVAL;
+
+        get_group_info(current->group_info);
+        i = current->group_info->ngroups;
+        if (gidsetsize) {
+                if (i > gidsetsize) {
+                        i = -EINVAL;
+                        goto out;
+                }
+                if (groups16_to_user(grouplist, current->group_info)) {
+                        i = -EFAULT;
+                        goto out;
+                }
+        }
+out:
+        put_group_info(current->group_info);
+        return i;
+}
+
+asmlinkage long sys32_setgroups16(int gidsetsize, u16 __user *grouplist)
+{
+        struct group_info *group_info;
+        int retval;
+
+        if (!capable(CAP_SETGID))
+                return -EPERM;
+        if ((unsigned)gidsetsize > NGROUPS_MAX)
+                return -EINVAL;
+
+        group_info = groups_alloc(gidsetsize);
+        if (!group_info)
+                return -ENOMEM;
+        retval = groups16_from_user(group_info, grouplist);
+        if (retval) {
+                put_group_info(group_info);
+                return retval;
+        }
+
+        retval = set_current_groups(group_info);
+        put_group_info(group_info);
+
+        return retval;
+}
+
+asmlinkage long sys32_getuid16(void)
+{
+        return high2lowuid(current->uid);
+}
+
+asmlinkage long sys32_geteuid16(void)
+{
+        return high2lowuid(current->euid);
+}
+
+asmlinkage long sys32_getgid16(void)
+{
+        return high2lowgid(current->gid);
+}
+
+asmlinkage long sys32_getegid16(void)
+{
+        return high2lowgid(current->egid);
+}
+
+/* 32-bit timeval and related flotsam.  */
+
+static long get_tv32(struct timeval *o, struct compat_timeval __user *i)
+{
+        return (!access_ok(VERIFY_READ, i, sizeof(*i)) ||
+                (__get_user(o->tv_sec, &i->tv_sec) |
+                 __get_user(o->tv_usec, &i->tv_usec)));
+}
+
+static inline long put_tv32(struct compat_timeval __user *o, struct timeval *i)
+{
+        return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
+                (__put_user(i->tv_sec, &o->tv_sec) |
+                 __put_user(i->tv_usec, &o->tv_usec)));
+}
+
+#ifdef CONFIG_SYSVIPC                                                        
+asmlinkage long compat_sys_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr, u32 fifth)
+{
+        int version;
+
+        version = call >> 16; /* hack for backward compatibility */
+        call &= 0xffff;
+
+        switch (call) {
+        case SEMTIMEDOP:
+                if (fifth)
+                        /* sign extend semid */
+                        return compat_sys_semtimedop((int)first,
+                                                     compat_ptr(ptr), second,
+                                                     compat_ptr(fifth));
+                /* else fall through for normal semop() */
+        case SEMOP:
+                /* struct sembuf is the same on 32 and 64bit :)) */
+                /* sign extend semid */
+                return sys_semtimedop((int)first, compat_ptr(ptr), second,
+                                      NULL);
+        case SEMGET:
+                /* sign extend key, nsems */
+                return sys_semget((int)first, (int)second, third);
+        case SEMCTL:
+                /* sign extend semid, semnum */
+                return compat_sys_semctl((int)first, (int)second, third,
+                                         compat_ptr(ptr));
+
+        case MSGSND:
+                /* sign extend msqid */
+                return compat_sys_msgsnd((int)first, (int)second, third,
+                                         compat_ptr(ptr));
+        case MSGRCV:
+                /* sign extend msqid, msgtyp */
+                return compat_sys_msgrcv((int)first, second, (int)fifth,
+                                         third, version, compat_ptr(ptr));
+        case MSGGET:
+                /* sign extend key */
+                return sys_msgget((int)first, second);
+        case MSGCTL:
+                /* sign extend msqid */
+                return compat_sys_msgctl((int)first, second, compat_ptr(ptr));
+
+        case SHMAT:
+                /* sign extend shmid */
+                return compat_sys_shmat((int)first, second, third, version,
+                                        compat_ptr(ptr));
+        case SHMDT:
+                return sys_shmdt(compat_ptr(ptr));
+        case SHMGET:
+                /* sign extend key_t */
+                return sys_shmget((int)first, second, third);
+        case SHMCTL:
+                /* sign extend shmid */
+                return compat_sys_shmctl((int)first, second, compat_ptr(ptr));
+
+        default:
+                return -ENOSYS;
+        };
+
+        return -ENOSYS;
+}
+#endif
+
+asmlinkage long sys32_truncate64(const char __user * path, unsigned long high, unsigned long low)
+{
+        if ((int)high < 0)
+                return -EINVAL;
+        else
+                return sys_truncate(path, (high << 32) | low);
+}
+
+asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long high, unsigned long low)
+{
+        if ((int)high < 0)
+                return -EINVAL;
+        else
+                return sys_ftruncate(fd, (high << 32) | low);
+}
+
+int cp_compat_stat(struct kstat *stat, struct compat_stat __user *statbuf)
+{
+        int err;
+
+        if (stat->size > MAX_NON_LFS || !old_valid_dev(stat->dev) ||
+            !old_valid_dev(stat->rdev))
+                return -EOVERFLOW;
+
+        err  = put_user(old_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(high2lowuid(stat->uid), &statbuf->st_uid);
+        err |= put_user(high2lowgid(stat->gid), &statbuf->st_gid);
+        err |= put_user(old_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(0, &statbuf->__unused1);
+        err |= put_user(stat->mtime.tv_sec, &statbuf->st_mtime);
+        err |= put_user(0, &statbuf->__unused2);
+        err |= put_user(stat->ctime.tv_sec, &statbuf->st_ctime);
+        err |= put_user(0, &statbuf->__unused3);
+        err |= put_user(stat->blksize, &statbuf->st_blksize);
+        err |= put_user(stat->blocks, &statbuf->st_blocks);
+        err |= put_user(0, &statbuf->__unused4[0]);
+        err |= put_user(0, &statbuf->__unused4[1]);
+
+        return err;
+}
+
+asmlinkage long compat_sys_sysfs(int option, u32 arg1, u32 arg2)
+{
+        return sys_sysfs(option, arg1, arg2);
+}
+
+struct sysinfo32 {
+        s32 uptime;
+        u32 loads[3];
+        u32 totalram;
+        u32 freeram;
+        u32 sharedram;
+        u32 bufferram;
+        u32 totalswap;
+        u32 freeswap;
+        unsigned short procs;
+        unsigned short pad;
+        u32 totalhigh;
+        u32 freehigh;
+        u32 mem_unit;
+        char _f[20-2*sizeof(int)-sizeof(int)];
+};
+
+asmlinkage long sys32_sysinfo(struct sysinfo32 __user *info)
+{
+        struct sysinfo s;
+        int ret, err;
+        int bitcount = 0;
+        mm_segment_t old_fs = get_fs ();
+        
+        set_fs(KERNEL_DS);
+        ret = sys_sysinfo((struct sysinfo __user *) &s);
+        set_fs(old_fs);
+        /* Check to see if any memory value is too large for 32-bit and
+         * scale down if needed.
+         */
+        if ((s.totalram >> 32) || (s.totalswap >> 32)) {
+                while (s.mem_unit < PAGE_SIZE) {
+                        s.mem_unit <<= 1;
+                        bitcount++;
+                }
+                s.totalram >>= bitcount;
+                s.freeram >>= bitcount;
+                s.sharedram >>= bitcount;
+                s.bufferram >>= bitcount;
+                s.totalswap >>= bitcount;
+                s.freeswap >>= bitcount;
+                s.totalhigh >>= bitcount;
+                s.freehigh >>= bitcount;
+        }
+
+        err = put_user (s.uptime, &info->uptime);
+        err |= __put_user (s.loads[0], &info->loads[0]);
+        err |= __put_user (s.loads[1], &info->loads[1]);
+        err |= __put_user (s.loads[2], &info->loads[2]);
+        err |= __put_user (s.totalram, &info->totalram);
+        err |= __put_user (s.freeram, &info->freeram);
+        err |= __put_user (s.sharedram, &info->sharedram);
+        err |= __put_user (s.bufferram, &info->bufferram);
+        err |= __put_user (s.totalswap, &info->totalswap);
+        err |= __put_user (s.freeswap, &info->freeswap);
+        err |= __put_user (s.procs, &info->procs);
+        err |= __put_user (s.totalhigh, &info->totalhigh);
+        err |= __put_user (s.freehigh, &info->freehigh);
+        err |= __put_user (s.mem_unit, &info->mem_unit);
+        if (err)
+                return -EFAULT;
+        return ret;
+}
+
+asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid, struct compat_timespec __user *interval)
+{
+        struct timespec t;
+        int ret;
+        mm_segment_t old_fs = get_fs ();
+        
+        set_fs (KERNEL_DS);
+        ret = sys_sched_rr_get_interval(pid, (struct timespec __user *) &t);
+        set_fs (old_fs);
+        if (put_compat_timespec(&t, interval))
+                return -EFAULT;
+        return ret;
+}
+
+asmlinkage long compat_sys_rt_sigprocmask(int how,
+                                          compat_sigset_t __user *set,
+                                          compat_sigset_t __user *oset,
+                                          compat_size_t sigsetsize)
+{
+        sigset_t s;
+        compat_sigset_t s32;
+        int ret;
+        mm_segment_t old_fs = get_fs();
+        
+        if (set) {
+                if (copy_from_user (&s32, set, sizeof(compat_sigset_t)))
+                        return -EFAULT;
+                switch (_NSIG_WORDS) {
+                case 4: s.sig[3] = s32.sig[6] | (((long)s32.sig[7]) << 32);
+                case 3: s.sig[2] = s32.sig[4] | (((long)s32.sig[5]) << 32);
+                case 2: s.sig[1] = s32.sig[2] | (((long)s32.sig[3]) << 32);
+                case 1: s.sig[0] = s32.sig[0] | (((long)s32.sig[1]) << 32);
+                }
+        }
+        set_fs (KERNEL_DS);
+        ret = sys_rt_sigprocmask(how,
+                                 set ? (sigset_t __user *) &s : NULL,
+                                 oset ? (sigset_t __user *) &s : NULL,
+                                 sigsetsize);
+        set_fs (old_fs);
+        if (ret) return ret;
+        if (oset) {
+                switch (_NSIG_WORDS) {
+                case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
+                case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
+                case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
+                case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
+                }
+                if (copy_to_user (oset, &s32, sizeof(compat_sigset_t)))
+                        return -EFAULT;
+        }
+        return 0;
+}
+
+asmlinkage long sys32_rt_sigpending(compat_sigset_t __user *set,
+                                    compat_size_t sigsetsize)
+{
+        sigset_t s;
+        compat_sigset_t s32;
+        int ret;
+        mm_segment_t old_fs = get_fs();
+                
+        set_fs (KERNEL_DS);
+        ret = sys_rt_sigpending((sigset_t __user *) &s, sigsetsize);
+        set_fs (old_fs);
+        if (!ret) {
+                switch (_NSIG_WORDS) {
+                case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
+                case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
+                case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
+                case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
+                }
+                if (copy_to_user (set, &s32, sizeof(compat_sigset_t)))
+                        return -EFAULT;
+        }
+        return ret;
+}
+
+asmlinkage long compat_sys_rt_sigqueueinfo(int pid, int sig,
+                                           struct compat_siginfo __user *uinfo)
+{
+        siginfo_t info;
+        int ret;
+        mm_segment_t old_fs = get_fs();
+        
+        if (copy_siginfo_from_user32(&info, uinfo))
+                return -EFAULT;
+
+        set_fs (KERNEL_DS);
+        ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __user *) &info);
+        set_fs (old_fs);
+        return ret;
+}
+
+asmlinkage long compat_sys_sigaction(int sig, struct old_sigaction32 __user *act,
+                                     struct old_sigaction32 __user *oact)
+{
+        struct k_sigaction new_ka, old_ka;
+        int ret;
+
+        if (sig < 0) {
+                set_thread_flag(TIF_NEWSIGNALS);
+                sig = -sig;
+        }
+
+        if (act) {
+                compat_old_sigset_t mask;
+                u32 u_handler, u_restorer;
+                
+                ret = get_user(u_handler, &act->sa_handler);
+                new_ka.sa.sa_handler =  compat_ptr(u_handler);
+                ret |= __get_user(u_restorer, &act->sa_restorer);
+                new_ka.sa.sa_restorer = compat_ptr(u_restorer);
+                ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
+                ret |= __get_user(mask, &act->sa_mask);
+                if (ret)
+                        return ret;
+                new_ka.ka_restorer = NULL;
+                siginitset(&new_ka.sa.sa_mask, mask);
+        }
+
+        ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
+
+        if (!ret && oact) {
+                ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler);
+                ret |= __put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer);
+                ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
+                ret |= __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
+        }
+
+        return ret;
+}
+
+asmlinkage long compat_sys_rt_sigaction(int sig,
+                                        struct sigaction32 __user *act,
+                                        struct sigaction32 __user *oact,
+                                        void __user *restorer,
+                                        compat_size_t sigsetsize)
+{
+        struct k_sigaction new_ka, old_ka;
+        int ret;
+        compat_sigset_t set32;
+
+        /* XXX: Don't preclude handling different sized sigset_t's.  */
+        if (sigsetsize != sizeof(compat_sigset_t))
+                return -EINVAL;
+
+        /* All tasks which use RT signals (effectively) use
+         * new style signals.
+         */
+        set_thread_flag(TIF_NEWSIGNALS);
+
+        if (act) {
+                u32 u_handler, u_restorer;
+
+                new_ka.ka_restorer = restorer;
+                ret = get_user(u_handler, &act->sa_handler);
+                new_ka.sa.sa_handler =  compat_ptr(u_handler);
+                ret |= __copy_from_user(&set32, &act->sa_mask, sizeof(compat_sigset_t));
+                switch (_NSIG_WORDS) {
+                case 4: new_ka.sa.sa_mask.sig[3] = set32.sig[6] | (((long)set32.sig[7]) << 32);
+                case 3: new_ka.sa.sa_mask.sig[2] = set32.sig[4] | (((long)set32.sig[5]) << 32);
+                case 2: new_ka.sa.sa_mask.sig[1] = set32.sig[2] | (((long)set32.sig[3]) << 32);
+                case 1: new_ka.sa.sa_mask.sig[0] = set32.sig[0] | (((long)set32.sig[1]) << 32);
+                }
+                ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags);
+                ret |= __get_user(u_restorer, &act->sa_restorer);
+                new_ka.sa.sa_restorer = compat_ptr(u_restorer);
+                if (ret)
+                        return -EFAULT;
+        }
+
+        ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
+
+        if (!ret && oact) {
+                switch (_NSIG_WORDS) {
+                case 4: set32.sig[7] = (old_ka.sa.sa_mask.sig[3] >> 32); set32.sig[6] = old_ka.sa.sa_mask.sig[3];
+                case 3: set32.sig[5] = (old_ka.sa.sa_mask.sig[2] >> 32); set32.sig[4] = old_ka.sa.sa_mask.sig[2];
+                case 2: set32.sig[3] = (old_ka.sa.sa_mask.sig[1] >> 32); set32.sig[2] = old_ka.sa.sa_mask.sig[1];
+                case 1: set32.sig[1] = (old_ka.sa.sa_mask.sig[0] >> 32); set32.sig[0] = old_ka.sa.sa_mask.sig[0];
+                }
+                ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler);
+                ret |= __copy_to_user(&oact->sa_mask, &set32, sizeof(compat_sigset_t));
+                ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
+                ret |= __put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer);
+                if (ret)
+                        ret = -EFAULT;
+        }
+
+        return ret;
+}
+
+/*
+ * sparc32_execve() executes a new program after the asm stub has set
+ * things up for us.  This should basically do what I want it to.
+ */
+asmlinkage long sparc32_execve(struct pt_regs *regs)
+{
+        int error, base = 0;
+        char *filename;
+
+        /* User register window flush is done by entry.S */
+
+        /* Check for indirect call. */
+        if ((u32)regs->u_regs[UREG_G1] == 0)
+                base = 1;
+
+        filename = getname(compat_ptr(regs->u_regs[base + UREG_I0]));
+        error = PTR_ERR(filename);
+        if (IS_ERR(filename))
+                goto out;
+
+        error = compat_do_execve(filename,
+                                 compat_ptr(regs->u_regs[base + UREG_I1]),
+                                 compat_ptr(regs->u_regs[base + UREG_I2]), regs);
+
+        putname(filename);
+
+        if (!error) {
+                fprs_write(0);
+                current_thread_info()->xfsr[0] = 0;
+                current_thread_info()->fpsaved[0] = 0;
+                regs->tstate &= ~TSTATE_PEF;
+                task_lock(current);
+                current->ptrace &= ~PT_DTRACE;
+                task_unlock(current);
+        }
+out:
+        return error;
+}
+
+#ifdef CONFIG_MODULES
+
+asmlinkage long sys32_init_module(void __user *umod, u32 len,
+                                  const char __user *uargs)
+{
+        return sys_init_module(umod, len, uargs);
+}
+
+asmlinkage long sys32_delete_module(const char __user *name_user,
+                                    unsigned int flags)
+{
+        return sys_delete_module(name_user, flags);
+}
+
+#else /* CONFIG_MODULES */
+
+asmlinkage long sys32_init_module(const char __user *name_user,
+                                  struct module __user *mod_user)
+{
+        return -ENOSYS;
+}
+
+asmlinkage long sys32_delete_module(const char __user *name_user)
+{
+        return -ENOSYS;
+}
+
+#endif  /* CONFIG_MODULES */
+
+/* Translations due to time_t size differences.  Which affects all
+   sorts of things, like timeval and itimerval.  */
+
+extern struct timezone sys_tz;
+
+asmlinkage long sys32_gettimeofday(struct compat_timeval __user *tv,
+                                   struct timezone __user *tz)
+{
+        if (tv) {
+                struct timeval ktv;
+                do_gettimeofday(&ktv);
+                if (put_tv32(tv, &ktv))
+                        return -EFAULT;
+        }
+        if (tz) {
+                if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
+                        return -EFAULT;
+        }
+        return 0;
+}
+
+static inline long get_ts32(struct timespec *o, struct compat_timeval __user *i)
+{
+        long usec;
+
+        if (!access_ok(VERIFY_READ, i, sizeof(*i)))
+                return -EFAULT;
+        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 long 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);
+}
+
+asmlinkage long sys32_utimes(char __user *filename,
+                             struct compat_timeval __user *tvs)
+{
+        struct timeval ktvs[2];
+
+        if (tvs) {
+                if (get_tv32(&ktvs[0], tvs) ||
+                    get_tv32(&ktvs[1], 1+tvs))
+                        return -EFAULT;
+        }
+
+        return do_utimes(filename, (tvs ? &ktvs[0] : NULL));
+}
+
+/* These are here just in case some old sparc32 binary calls it. */
+asmlinkage long sys32_pause(void)
+{
+        current->state = TASK_INTERRUPTIBLE;
+        schedule();
+        return -ERESTARTNOHAND;
+}
+
+asmlinkage compat_ssize_t sys32_pread64(unsigned int fd,
+                                        char __user *ubuf,
+                                        compat_size_t count,
+                                        unsigned long poshi,
+                                        unsigned long poslo)
+{
+        return sys_pread64(fd, ubuf, count, (poshi << 32) | poslo);
+}
+
+asmlinkage compat_ssize_t sys32_pwrite64(unsigned int fd,
+                                         char __user *ubuf,
+                                         compat_size_t count,
+                                         unsigned long poshi,
+                                         unsigned long poslo)
+{
+        return sys_pwrite64(fd, ubuf, count, (poshi << 32) | poslo);
+}
+
+asmlinkage long compat_sys_readahead(int fd,
+                                     unsigned long offhi,
+                                     unsigned long offlo,
+                                     compat_size_t count)
+{
+        return sys_readahead(fd, (offhi << 32) | offlo, count);
+}
+
+long compat_sys_fadvise64(int fd,
+                          unsigned long offhi,
+                          unsigned long offlo,
+                          compat_size_t len, int advice)
+{
+        return sys_fadvise64_64(fd, (offhi << 32) | offlo, len, advice);
+}
+
+long compat_sys_fadvise64_64(int fd,
+                             unsigned long offhi, unsigned long offlo,
+                             unsigned long lenhi, unsigned long lenlo,
+                             int advice)
+{
+        return sys_fadvise64_64(fd,
+                                (offhi << 32) | offlo,
+                                (lenhi << 32) | lenlo,
+                                advice);
+}
+
+asmlinkage long compat_sys_sendfile(int out_fd, int in_fd,
+                                    compat_off_t __user *offset,
+                                    compat_size_t 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 long compat_sys_sendfile64(int out_fd, int in_fd,
+                                      compat_loff_t __user *offset,
+                                      compat_size_t 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;
+}
+
+/* Handle adjtimex compatibility. */
+
+struct timex32 {
+        u32 modes;
+        s32 offset, freq, maxerror, esterror;
+        s32 status, constant, precision, tolerance;
+        struct compat_timeval time;
+        s32 tick;
+        s32 ppsfreq, jitter, shift, stabil;
+        s32 jitcnt, calcnt, errcnt, stbcnt;
+        s32  :32; s32  :32; s32  :32; s32  :32;
+        s32  :32; s32  :32; s32  :32; s32  :32;
+        s32  :32; s32  :32; s32  :32; s32  :32;
+};
+
+extern int do_adjtimex(struct timex *);
+
+asmlinkage long sys32_adjtimex(struct timex32 __user *utp)
+{
+        struct timex txc;
+        int ret;
+
+        memset(&txc, 0, sizeof(struct timex));
+
+        if (get_user(txc.modes, &utp->modes) ||
+            __get_user(txc.offset, &utp->offset) ||
+            __get_user(txc.freq, &utp->freq) ||
+            __get_user(txc.maxerror, &utp->maxerror) ||
+            __get_user(txc.esterror, &utp->esterror) ||
+            __get_user(txc.status, &utp->status) ||
+            __get_user(txc.constant, &utp->constant) ||
+            __get_user(txc.precision, &utp->precision) ||
+            __get_user(txc.tolerance, &utp->tolerance) ||
+            __get_user(txc.time.tv_sec, &utp->time.tv_sec) ||
+            __get_user(txc.time.tv_usec, &utp->time.tv_usec) ||
+            __get_user(txc.tick, &utp->tick) ||
+            __get_user(txc.ppsfreq, &utp->ppsfreq) ||
+            __get_user(txc.jitter, &utp->jitter) ||
+            __get_user(txc.shift, &utp->shift) ||
+            __get_user(txc.stabil, &utp->stabil) ||
+            __get_user(txc.jitcnt, &utp->jitcnt) ||
+            __get_user(txc.calcnt, &utp->calcnt) ||
+            __get_user(txc.errcnt, &utp->errcnt) ||
+            __get_user(txc.stbcnt, &utp->stbcnt))
+                return -EFAULT;
+
+        ret = do_adjtimex(&txc);
+
+        if (put_user(txc.modes, &utp->modes) ||
+            __put_user(txc.offset, &utp->offset) ||
+            __put_user(txc.freq, &utp->freq) ||
+            __put_user(txc.maxerror, &utp->maxerror) ||
+            __put_user(txc.esterror, &utp->esterror) ||
+            __put_user(txc.status, &utp->status) ||
+            __put_user(txc.constant, &utp->constant) ||
+            __put_user(txc.precision, &utp->precision) ||
+            __put_user(txc.tolerance, &utp->tolerance) ||
+            __put_user(txc.time.tv_sec, &utp->time.tv_sec) ||
+            __put_user(txc.time.tv_usec, &utp->time.tv_usec) ||
+            __put_user(txc.tick, &utp->tick) ||
+            __put_user(txc.ppsfreq, &utp->ppsfreq) ||
+            __put_user(txc.jitter, &utp->jitter) ||
+            __put_user(txc.shift, &utp->shift) ||
+            __put_user(txc.stabil, &utp->stabil) ||
+            __put_user(txc.jitcnt, &utp->jitcnt) ||
+            __put_user(txc.calcnt, &utp->calcnt) ||
+            __put_user(txc.errcnt, &utp->errcnt) ||
+            __put_user(txc.stbcnt, &utp->stbcnt))
+                ret = -EFAULT;
+
+        return ret;
+}
+
+/* This is just a version for 32-bit applications which does
+ * not force O_LARGEFILE on.
+ */
+
+asmlinkage long sparc32_open(const char __user *filename,
+                             int flags, int mode)
+{
+        char * tmp;
+        int fd, error;
+
+        tmp = getname(filename);
+        fd = PTR_ERR(tmp);
+        if (!IS_ERR(tmp)) {
+                fd = get_unused_fd();
+                if (fd >= 0) {
+                        struct file * f = filp_open(tmp, flags, mode);
+                        error = PTR_ERR(f);
+                        if (IS_ERR(f))
+                                goto out_error;
+                        fd_install(fd, f);
+                }
+out:
+                putname(tmp);
+        }
+        return fd;
+
+out_error:
+        put_unused_fd(fd);
+        fd = error;
+        goto out;
+}
+
+extern unsigned long do_mremap(unsigned long addr,
+        unsigned long old_len, unsigned long new_len,
+        unsigned long flags, unsigned long new_addr);
+                
+asmlinkage unsigned long sys32_mremap(unsigned long addr,
+        unsigned long old_len, unsigned long new_len,
+        unsigned long flags, u32 __new_addr)
+{
+        struct vm_area_struct *vma;
+        unsigned long ret = -EINVAL;
+        unsigned long new_addr = __new_addr;
+
+        if (old_len > 0xf0000000UL || new_len > 0xf0000000UL)
+                goto out;
+        if (addr > 0xf0000000UL - old_len)
+                goto out;
+        down_write(&current->mm->mmap_sem);
+        if (flags & MREMAP_FIXED) {
+                if (new_addr > 0xf0000000UL - new_len)
+                        goto out_sem;
+        } else if (addr > 0xf0000000UL - new_len) {
+                unsigned long map_flags = 0;
+                struct file *file = NULL;
+
+                ret = -ENOMEM;
+                if (!(flags & MREMAP_MAYMOVE))
+                        goto out_sem;
+
+                vma = find_vma(current->mm, addr);
+                if (vma) {
+                        if (vma->vm_flags & VM_SHARED)
+                                map_flags |= MAP_SHARED;
+                        file = vma->vm_file;
+                }
+
+                /* MREMAP_FIXED checked above. */
+                new_addr = get_unmapped_area(file, addr, new_len,
+                                    vma ? vma->vm_pgoff : 0,
+                                    map_flags);
+                ret = new_addr;
+                if (new_addr & ~PAGE_MASK)
+                        goto out_sem;
+                flags |= MREMAP_FIXED;
+        }
+        ret = do_mremap(addr, old_len, new_len, flags, new_addr);
+out_sem:
+        up_write(&current->mm->mmap_sem);
+out:
+        return ret;       
+}
+
+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)
+{
+#ifndef CONFIG_SYSCTL
+        return -ENOSYS;
+#else
+        struct __sysctl_args32 tmp;
+        int error;
+        size_t oldlen, __user *oldlenp = NULL;
+        unsigned long addr = (((unsigned long)&args->__unused[0]) + 7UL) & ~7UL;
+
+        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.  */
+                if (get_user(oldlen, (u32 __user *)(unsigned long)tmp.oldlenp) ||
+                    put_user(oldlen, (size_t __user *)addr))
+                        return -EFAULT;
+                oldlenp = (size_t __user *)addr;
+        }
+
+        lock_kernel();
+        error = do_sysctl((int __user *)(unsigned long) tmp.name,
+                          tmp.nlen,
+                          (void __user *)(unsigned long) tmp.oldval,
+                          oldlenp,
+                          (void __user *)(unsigned long) tmp.newval,
+                          tmp.newlen);
+        unlock_kernel();
+        if (oldlenp) {
+                if (!error) {
+                        if (get_user(oldlen, (size_t __user *)addr) ||
+                            put_user(oldlen, (u32 __user *)(unsigned long) tmp.oldlenp))
+                                error = -EFAULT;
+                }
+                if (copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused)))
+                        error = -EFAULT;
+        }
+        return error;
+#endif
+}
+
+long sys32_lookup_dcookie(unsigned long cookie_high,
+                          unsigned long cookie_low,
+                          char __user *buf, size_t len)
+{
+        return sys_lookup_dcookie((cookie_high << 32) | cookie_low,
+                                  buf, len);
+}
+
+extern asmlinkage long
+sys_timer_create(clockid_t which_clock,
+                 struct sigevent __user *timer_event_spec,
+                 timer_t __user *created_timer_id);
+
+long
+sys32_timer_create(u32 clock, struct compat_sigevent __user *se32,
+                   timer_t __user *timer_id)
+{
+        struct sigevent se;
+        mm_segment_t oldfs;
+        timer_t t;
+        long err;
+
+        if (se32 == NULL)
+                return sys_timer_create(clock, NULL, timer_id);
+
+        if (get_compat_sigevent(&se, se32))
+                return -EFAULT;
+
+        if (!access_ok(VERIFY_WRITE,timer_id,sizeof(timer_t)))
+                return -EFAULT;
+
+        oldfs = get_fs();
+        set_fs(KERNEL_DS);
+        err = sys_timer_create(clock,
+                               (struct sigevent __user *) &se,
+                               (timer_t __user *) &t);
+        set_fs(oldfs);
+
+        if (!err)
+                err = __put_user (t, timer_id);
+
+        return err;
+}