symbian-qemu-0.9.1-12/qemu-symbian-svp/linux-user/syscall.c
changeset 1 2fb8b9db1c86
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/qemu-symbian-svp/linux-user/syscall.c	Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,6108 @@
+/*
+ *  Linux syscalls
+ *
+ *  Copyright (c) 2003 Fabrice Bellard
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <string.h>
+#include <elf.h>
+#include <endian.h>
+#include <errno.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <time.h>
+#include <limits.h>
+#include <sys/types.h>
+#include <sys/ipc.h>
+#include <sys/msg.h>
+#include <sys/wait.h>
+#include <sys/time.h>
+#include <sys/stat.h>
+#include <sys/mount.h>
+#include <sys/prctl.h>
+#include <sys/resource.h>
+#include <sys/mman.h>
+#include <sys/swap.h>
+#include <signal.h>
+#include <sched.h>
+#include <sys/socket.h>
+#include <sys/uio.h>
+#include <sys/poll.h>
+#include <sys/times.h>
+#include <sys/shm.h>
+#include <sys/sem.h>
+#include <sys/statfs.h>
+#include <utime.h>
+#include <sys/sysinfo.h>
+//#include <sys/user.h>
+#include <netinet/ip.h>
+#include <netinet/tcp.h>
+#include <qemu-common.h>
+#ifdef HAVE_GPROF
+#include <sys/gmon.h>
+#endif
+
+#define termios host_termios
+#define winsize host_winsize
+#define termio host_termio
+#define sgttyb host_sgttyb /* same as target */
+#define tchars host_tchars /* same as target */
+#define ltchars host_ltchars /* same as target */
+
+#include <linux/termios.h>
+#include <linux/unistd.h>
+#include <linux/utsname.h>
+#include <linux/cdrom.h>
+#include <linux/hdreg.h>
+#include <linux/soundcard.h>
+#include <linux/kd.h>
+#include <linux/mtio.h>
+#include "linux_loop.h"
+
+#include "qemu.h"
+#include "qemu-common.h"
+
+#if defined(USE_NPTL)
+#include <linux/futex.h>
+#define CLONE_NPTL_FLAGS2 (CLONE_SETTLS | \
+    CLONE_PARENT_SETTID | CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID)
+#else
+/* XXX: Hardcode the above values.  */
+#define CLONE_NPTL_FLAGS2 0
+#endif
+
+//#define DEBUG
+
+#ifdef USE_NPTL
+#define CLONE_NPTL_FLAGS2 (CLONE_SETTLS | \
+    CLONE_PARENT_SETTID | CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID)
+#else
+/* XXX: Hardcode the above values.  */
+#define CLONE_NPTL_FLAGS2 0
+#endif
+
+#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC) \
+    || defined(TARGET_M68K) || defined(TARGET_SH4) || defined(TARGET_CRIS)
+/* 16 bit uid wrappers emulation */
+#define USE_UID16
+#endif
+
+//#include <linux/msdos_fs.h>
+#define	VFAT_IOCTL_READDIR_BOTH		_IOR('r', 1, struct linux_dirent [2])
+#define	VFAT_IOCTL_READDIR_SHORT	_IOR('r', 2, struct linux_dirent [2])
+
+#define TARGET_PROT_GROWSDOWN 0x01000000
+
+#undef _syscall0
+#undef _syscall1
+#undef _syscall2
+#undef _syscall3
+#undef _syscall4
+#undef _syscall5
+#undef _syscall6
+
+#define _syscall0(type,name)		\
+static type name (void)			\
+{					\
+	return syscall(__NR_##name);	\
+}
+
+#define _syscall1(type,name,type1,arg1)		\
+static type name (type1 arg1)			\
+{						\
+	return syscall(__NR_##name, arg1);	\
+}
+
+#define _syscall2(type,name,type1,arg1,type2,arg2)	\
+static type name (type1 arg1,type2 arg2)		\
+{							\
+	return syscall(__NR_##name, arg1, arg2);	\
+}
+
+#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3)	\
+static type name (type1 arg1,type2 arg2,type3 arg3)		\
+{								\
+	return syscall(__NR_##name, arg1, arg2, arg3);		\
+}
+
+#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4)	\
+static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4)			\
+{										\
+	return syscall(__NR_##name, arg1, arg2, arg3, arg4);			\
+}
+
+#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,	\
+		  type5,arg5)							\
+static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5)	\
+{										\
+	return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5);		\
+}
+
+
+#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,	\
+		  type5,arg5,type6,arg6)					\
+static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,	\
+                  type6 arg6)							\
+{										\
+	return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6);	\
+}
+
+
+#define __NR_sys_exit __NR_exit
+#define __NR_sys_uname __NR_uname
+#define __NR_sys_faccessat __NR_faccessat
+#define __NR_sys_fchmodat __NR_fchmodat
+#define __NR_sys_fchownat __NR_fchownat
+#define __NR_sys_fstatat64 __NR_fstatat64
+#define __NR_sys_futimesat __NR_futimesat
+#define __NR_sys_getcwd1 __NR_getcwd
+#define __NR_sys_getdents __NR_getdents
+#define __NR_sys_getdents64 __NR_getdents64
+#define __NR_sys_getpriority __NR_getpriority
+#define __NR_sys_linkat __NR_linkat
+#define __NR_sys_mkdirat __NR_mkdirat
+#define __NR_sys_mknodat __NR_mknodat
+#define __NR_sys_openat __NR_openat
+#define __NR_sys_readlinkat __NR_readlinkat
+#define __NR_sys_renameat __NR_renameat
+#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
+#define __NR_sys_symlinkat __NR_symlinkat
+#define __NR_sys_syslog __NR_syslog
+#define __NR_sys_tgkill __NR_tgkill
+#define __NR_sys_tkill __NR_tkill
+#define __NR_sys_unlinkat __NR_unlinkat
+#define __NR_sys_utimensat __NR_utimensat
+#define __NR_sys_futex __NR_futex
+#define __NR_sys_inotify_init __NR_inotify_init
+#define __NR_sys_inotify_add_watch __NR_inotify_add_watch
+#define __NR_sys_inotify_rm_watch __NR_inotify_rm_watch
+
+#if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__)
+#define __NR__llseek __NR_lseek
+#endif
+
+#ifdef __NR_gettid
+_syscall0(int, gettid)
+#else
+/* This is a replacement for the host gettid() and must return a host
+   errno. */
+static int gettid(void) {
+    return -ENOSYS;
+}
+#endif
+_syscall1(int,sys_exit,int,status)
+_syscall1(int,sys_uname,struct new_utsname *,buf)
+#if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
+_syscall4(int,sys_faccessat,int,dirfd,const char *,pathname,int,mode,int,flags)
+#endif
+#if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat)
+_syscall4(int,sys_fchmodat,int,dirfd,const char *,pathname,
+          mode_t,mode,int,flags)
+#endif
+#if defined(TARGET_NR_fchownat) && defined(__NR_fchownat) && defined(USE_UID16)
+_syscall5(int,sys_fchownat,int,dirfd,const char *,pathname,
+          uid_t,owner,gid_t,group,int,flags)
+#endif
+#if defined(TARGET_NR_fstatat64) && defined(__NR_fstatat64)
+_syscall4(int,sys_fstatat64,int,dirfd,const char *,pathname,
+          struct stat *,buf,int,flags)
+#endif
+#if defined(TARGET_NR_futimesat) && defined(__NR_futimesat)
+_syscall3(int,sys_futimesat,int,dirfd,const char *,pathname,
+         const struct timeval *,times)
+#endif
+_syscall2(int,sys_getcwd1,char *,buf,size_t,size)
+#if TARGET_ABI_BITS == 32
+_syscall3(int, sys_getdents, uint, fd, struct linux_dirent *, dirp, uint, count);
+#endif
+#if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
+_syscall3(int, sys_getdents64, uint, fd, struct linux_dirent64 *, dirp, uint, count);
+#endif
+_syscall2(int, sys_getpriority, int, which, int, who);
+#if !defined (__x86_64__)
+_syscall5(int, _llseek,  uint,  fd, ulong, hi, ulong, lo,
+          loff_t *, res, uint, wh);
+#endif
+#if defined(TARGET_NR_linkat) && defined(__NR_linkat)
+_syscall5(int,sys_linkat,int,olddirfd,const char *,oldpath,
+	  int,newdirfd,const char *,newpath,int,flags)
+#endif
+#if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat)
+_syscall3(int,sys_mkdirat,int,dirfd,const char *,pathname,mode_t,mode)
+#endif
+#if defined(TARGET_NR_mknodat) && defined(__NR_mknodat)
+_syscall4(int,sys_mknodat,int,dirfd,const char *,pathname,
+          mode_t,mode,dev_t,dev)
+#endif
+#if defined(TARGET_NR_openat) && defined(__NR_openat)
+_syscall4(int,sys_openat,int,dirfd,const char *,pathname,int,flags,mode_t,mode)
+#endif
+#if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat)
+_syscall4(int,sys_readlinkat,int,dirfd,const char *,pathname,
+          char *,buf,size_t,bufsize)
+#endif
+#if defined(TARGET_NR_renameat) && defined(__NR_renameat)
+_syscall4(int,sys_renameat,int,olddirfd,const char *,oldpath,
+          int,newdirfd,const char *,newpath)
+#endif
+_syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
+#if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat)
+_syscall3(int,sys_symlinkat,const char *,oldpath,
+          int,newdirfd,const char *,newpath)
+#endif
+_syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
+#if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
+_syscall3(int,sys_tgkill,int,tgid,int,pid,int,sig)
+#endif
+#if defined(TARGET_NR_tkill) && defined(__NR_tkill)
+_syscall2(int,sys_tkill,int,tid,int,sig)
+#endif
+#ifdef __NR_exit_group
+_syscall1(int,exit_group,int,error_code)
+#endif
+#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
+_syscall1(int,set_tid_address,int *,tidptr)
+#endif
+#if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat)
+_syscall3(int,sys_unlinkat,int,dirfd,const char *,pathname,int,flags)
+#endif
+#if defined(TARGET_NR_utimensat) && defined(__NR_utimensat)
+_syscall4(int,sys_utimensat,int,dirfd,const char *,pathname,
+          const struct timespec *,tsp,int,flags)
+#endif
+#if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
+_syscall0(int,sys_inotify_init)
+#endif
+#if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
+_syscall3(int,sys_inotify_add_watch,int,fd,const char *,pathname,uint32_t,mask)
+#endif
+#if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
+_syscall2(int,sys_inotify_rm_watch,int,fd,uint32_t,wd)
+#endif
+#if defined(USE_NPTL)
+#if defined(TARGET_NR_futex) && defined(__NR_futex)
+_syscall6(int,sys_futex,int *,uaddr,int,op,int,val,
+          const struct timespec *,timeout,int *,uaddr2,int,val3)
+#endif
+#endif
+
+extern int personality(int);
+extern int flock(int, int);
+extern int setfsuid(int);
+extern int setfsgid(int);
+extern int setgroups(int, gid_t *);
+
+#define ERRNO_TABLE_SIZE 1200
+
+/* target_to_host_errno_table[] is initialized from
+ * host_to_target_errno_table[] in syscall_init(). */
+static uint16_t target_to_host_errno_table[ERRNO_TABLE_SIZE] = {
+};
+
+/*
+ * This list is the union of errno values overridden in asm-<arch>/errno.h
+ * minus the errnos that are not actually generic to all archs.
+ */
+static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = {
+    [EIDRM]		= TARGET_EIDRM,
+    [ECHRNG]		= TARGET_ECHRNG,
+    [EL2NSYNC]		= TARGET_EL2NSYNC,
+    [EL3HLT]		= TARGET_EL3HLT,
+    [EL3RST]		= TARGET_EL3RST,
+    [ELNRNG]		= TARGET_ELNRNG,
+    [EUNATCH]		= TARGET_EUNATCH,
+    [ENOCSI]		= TARGET_ENOCSI,
+    [EL2HLT]		= TARGET_EL2HLT,
+    [EDEADLK]		= TARGET_EDEADLK,
+    [ENOLCK]		= TARGET_ENOLCK,
+    [EBADE]		= TARGET_EBADE,
+    [EBADR]		= TARGET_EBADR,
+    [EXFULL]		= TARGET_EXFULL,
+    [ENOANO]		= TARGET_ENOANO,
+    [EBADRQC]		= TARGET_EBADRQC,
+    [EBADSLT]		= TARGET_EBADSLT,
+    [EBFONT]		= TARGET_EBFONT,
+    [ENOSTR]		= TARGET_ENOSTR,
+    [ENODATA]		= TARGET_ENODATA,
+    [ETIME]		= TARGET_ETIME,
+    [ENOSR]		= TARGET_ENOSR,
+    [ENONET]		= TARGET_ENONET,
+    [ENOPKG]		= TARGET_ENOPKG,
+    [EREMOTE]		= TARGET_EREMOTE,
+    [ENOLINK]		= TARGET_ENOLINK,
+    [EADV]		= TARGET_EADV,
+    [ESRMNT]		= TARGET_ESRMNT,
+    [ECOMM]		= TARGET_ECOMM,
+    [EPROTO]		= TARGET_EPROTO,
+    [EDOTDOT]		= TARGET_EDOTDOT,
+    [EMULTIHOP]		= TARGET_EMULTIHOP,
+    [EBADMSG]		= TARGET_EBADMSG,
+    [ENAMETOOLONG]	= TARGET_ENAMETOOLONG,
+    [EOVERFLOW]		= TARGET_EOVERFLOW,
+    [ENOTUNIQ]		= TARGET_ENOTUNIQ,
+    [EBADFD]		= TARGET_EBADFD,
+    [EREMCHG]		= TARGET_EREMCHG,
+    [ELIBACC]		= TARGET_ELIBACC,
+    [ELIBBAD]		= TARGET_ELIBBAD,
+    [ELIBSCN]		= TARGET_ELIBSCN,
+    [ELIBMAX]		= TARGET_ELIBMAX,
+    [ELIBEXEC]		= TARGET_ELIBEXEC,
+    [EILSEQ]		= TARGET_EILSEQ,
+    [ENOSYS]		= TARGET_ENOSYS,
+    [ELOOP]		= TARGET_ELOOP,
+    [ERESTART]		= TARGET_ERESTART,
+    [ESTRPIPE]		= TARGET_ESTRPIPE,
+    [ENOTEMPTY]		= TARGET_ENOTEMPTY,
+    [EUSERS]		= TARGET_EUSERS,
+    [ENOTSOCK]		= TARGET_ENOTSOCK,
+    [EDESTADDRREQ]	= TARGET_EDESTADDRREQ,
+    [EMSGSIZE]		= TARGET_EMSGSIZE,
+    [EPROTOTYPE]	= TARGET_EPROTOTYPE,
+    [ENOPROTOOPT]	= TARGET_ENOPROTOOPT,
+    [EPROTONOSUPPORT]	= TARGET_EPROTONOSUPPORT,
+    [ESOCKTNOSUPPORT]	= TARGET_ESOCKTNOSUPPORT,
+    [EOPNOTSUPP]	= TARGET_EOPNOTSUPP,
+    [EPFNOSUPPORT]	= TARGET_EPFNOSUPPORT,
+    [EAFNOSUPPORT]	= TARGET_EAFNOSUPPORT,
+    [EADDRINUSE]	= TARGET_EADDRINUSE,
+    [EADDRNOTAVAIL]	= TARGET_EADDRNOTAVAIL,
+    [ENETDOWN]		= TARGET_ENETDOWN,
+    [ENETUNREACH]	= TARGET_ENETUNREACH,
+    [ENETRESET]		= TARGET_ENETRESET,
+    [ECONNABORTED]	= TARGET_ECONNABORTED,
+    [ECONNRESET]	= TARGET_ECONNRESET,
+    [ENOBUFS]		= TARGET_ENOBUFS,
+    [EISCONN]		= TARGET_EISCONN,
+    [ENOTCONN]		= TARGET_ENOTCONN,
+    [EUCLEAN]		= TARGET_EUCLEAN,
+    [ENOTNAM]		= TARGET_ENOTNAM,
+    [ENAVAIL]		= TARGET_ENAVAIL,
+    [EISNAM]		= TARGET_EISNAM,
+    [EREMOTEIO]		= TARGET_EREMOTEIO,
+    [ESHUTDOWN]		= TARGET_ESHUTDOWN,
+    [ETOOMANYREFS]	= TARGET_ETOOMANYREFS,
+    [ETIMEDOUT]		= TARGET_ETIMEDOUT,
+    [ECONNREFUSED]	= TARGET_ECONNREFUSED,
+    [EHOSTDOWN]		= TARGET_EHOSTDOWN,
+    [EHOSTUNREACH]	= TARGET_EHOSTUNREACH,
+    [EALREADY]		= TARGET_EALREADY,
+    [EINPROGRESS]	= TARGET_EINPROGRESS,
+    [ESTALE]		= TARGET_ESTALE,
+    [ECANCELED]		= TARGET_ECANCELED,
+    [ENOMEDIUM]		= TARGET_ENOMEDIUM,
+    [EMEDIUMTYPE]	= TARGET_EMEDIUMTYPE,
+#ifdef ENOKEY
+    [ENOKEY]		= TARGET_ENOKEY,
+#endif
+#ifdef EKEYEXPIRED
+    [EKEYEXPIRED]	= TARGET_EKEYEXPIRED,
+#endif
+#ifdef EKEYREVOKED
+    [EKEYREVOKED]	= TARGET_EKEYREVOKED,
+#endif
+#ifdef EKEYREJECTED
+    [EKEYREJECTED]	= TARGET_EKEYREJECTED,
+#endif
+#ifdef EOWNERDEAD
+    [EOWNERDEAD]	= TARGET_EOWNERDEAD,
+#endif
+#ifdef ENOTRECOVERABLE
+    [ENOTRECOVERABLE]	= TARGET_ENOTRECOVERABLE,
+#endif
+};
+
+static inline int host_to_target_errno(int err)
+{
+    if(host_to_target_errno_table[err])
+        return host_to_target_errno_table[err];
+    return err;
+}
+
+static inline int target_to_host_errno(int err)
+{
+    if (target_to_host_errno_table[err])
+        return target_to_host_errno_table[err];
+    return err;
+}
+
+static inline abi_long get_errno(abi_long ret)
+{
+    if (ret == -1)
+        return -host_to_target_errno(errno);
+    else
+        return ret;
+}
+
+static inline int is_error(abi_long ret)
+{
+    return (abi_ulong)ret >= (abi_ulong)(-4096);
+}
+
+char *target_strerror(int err)
+{
+    return strerror(target_to_host_errno(err));
+}
+
+static abi_ulong target_brk;
+static abi_ulong target_original_brk;
+
+void target_set_brk(abi_ulong new_brk)
+{
+    target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk);
+}
+
+/* do_brk() must return target values and target errnos. */
+abi_long do_brk(abi_ulong new_brk)
+{
+    abi_ulong brk_page;
+    abi_long mapped_addr;
+    int	new_alloc_size;
+
+    if (!new_brk)
+        return target_brk;
+    if (new_brk < target_original_brk)
+        return target_brk;
+
+    brk_page = HOST_PAGE_ALIGN(target_brk);
+
+    /* If the new brk is less than this, set it and we're done... */
+    if (new_brk < brk_page) {
+	target_brk = new_brk;
+    	return target_brk;
+    }
+
+    /* We need to allocate more memory after the brk... */
+    new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1);
+    mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
+                                        PROT_READ|PROT_WRITE,
+                                        MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
+
+    if (!is_error(mapped_addr))
+	target_brk = new_brk;
+    
+    return target_brk;
+}
+
+static inline abi_long copy_from_user_fdset(fd_set *fds,
+                                            abi_ulong target_fds_addr,
+                                            int n)
+{
+    int i, nw, j, k;
+    abi_ulong b, *target_fds;
+
+    nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
+    if (!(target_fds = lock_user(VERIFY_READ,
+                                 target_fds_addr,
+                                 sizeof(abi_ulong) * nw,
+                                 1)))
+        return -TARGET_EFAULT;
+
+    FD_ZERO(fds);
+    k = 0;
+    for (i = 0; i < nw; i++) {
+        /* grab the abi_ulong */
+        __get_user(b, &target_fds[i]);
+        for (j = 0; j < TARGET_ABI_BITS; j++) {
+            /* check the bit inside the abi_ulong */
+            if ((b >> j) & 1)
+                FD_SET(k, fds);
+            k++;
+        }
+    }
+
+    unlock_user(target_fds, target_fds_addr, 0);
+
+    return 0;
+}
+
+static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr,
+                                          const fd_set *fds,
+                                          int n)
+{
+    int i, nw, j, k;
+    abi_long v;
+    abi_ulong *target_fds;
+
+    nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
+    if (!(target_fds = lock_user(VERIFY_WRITE,
+                                 target_fds_addr,
+                                 sizeof(abi_ulong) * nw,
+                                 0)))
+        return -TARGET_EFAULT;
+
+    k = 0;
+    for (i = 0; i < nw; i++) {
+        v = 0;
+        for (j = 0; j < TARGET_ABI_BITS; j++) {
+            v |= ((FD_ISSET(k, fds) != 0) << j);
+            k++;
+        }
+        __put_user(v, &target_fds[i]);
+    }
+
+    unlock_user(target_fds, target_fds_addr, sizeof(abi_ulong) * nw);
+
+    return 0;
+}
+
+#if defined(__alpha__)
+#define HOST_HZ 1024
+#else
+#define HOST_HZ 100
+#endif
+
+static inline abi_long host_to_target_clock_t(long ticks)
+{
+#if HOST_HZ == TARGET_HZ
+    return ticks;
+#else
+    return ((int64_t)ticks * TARGET_HZ) / HOST_HZ;
+#endif
+}
+
+static inline abi_long host_to_target_rusage(abi_ulong target_addr,
+                                             const struct rusage *rusage)
+{
+    struct target_rusage *target_rusage;
+
+    if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0))
+        return -TARGET_EFAULT;
+    target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec);
+    target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec);
+    target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec);
+    target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec);
+    target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss);
+    target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss);
+    target_rusage->ru_idrss = tswapl(rusage->ru_idrss);
+    target_rusage->ru_isrss = tswapl(rusage->ru_isrss);
+    target_rusage->ru_minflt = tswapl(rusage->ru_minflt);
+    target_rusage->ru_majflt = tswapl(rusage->ru_majflt);
+    target_rusage->ru_nswap = tswapl(rusage->ru_nswap);
+    target_rusage->ru_inblock = tswapl(rusage->ru_inblock);
+    target_rusage->ru_oublock = tswapl(rusage->ru_oublock);
+    target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd);
+    target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv);
+    target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals);
+    target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw);
+    target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw);
+    unlock_user_struct(target_rusage, target_addr, 1);
+
+    return 0;
+}
+
+static inline abi_long copy_from_user_timeval(struct timeval *tv,
+                                              abi_ulong target_tv_addr)
+{
+    struct target_timeval *target_tv;
+
+    if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1))
+        return -TARGET_EFAULT;
+
+    __get_user(tv->tv_sec, &target_tv->tv_sec);
+    __get_user(tv->tv_usec, &target_tv->tv_usec);
+
+    unlock_user_struct(target_tv, target_tv_addr, 0);
+
+    return 0;
+}
+
+static inline abi_long copy_to_user_timeval(abi_ulong target_tv_addr,
+                                            const struct timeval *tv)
+{
+    struct target_timeval *target_tv;
+
+    if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0))
+        return -TARGET_EFAULT;
+
+    __put_user(tv->tv_sec, &target_tv->tv_sec);
+    __put_user(tv->tv_usec, &target_tv->tv_usec);
+
+    unlock_user_struct(target_tv, target_tv_addr, 1);
+
+    return 0;
+}
+
+
+/* do_select() must return target values and target errnos. */
+static abi_long do_select(int n,
+                          abi_ulong rfd_addr, abi_ulong wfd_addr,
+                          abi_ulong efd_addr, abi_ulong target_tv_addr)
+{
+    fd_set rfds, wfds, efds;
+    fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
+    struct timeval tv, *tv_ptr;
+    abi_long ret;
+
+    if (rfd_addr) {
+        if (copy_from_user_fdset(&rfds, rfd_addr, n))
+            return -TARGET_EFAULT;
+        rfds_ptr = &rfds;
+    } else {
+        rfds_ptr = NULL;
+    }
+    if (wfd_addr) {
+        if (copy_from_user_fdset(&wfds, wfd_addr, n))
+            return -TARGET_EFAULT;
+        wfds_ptr = &wfds;
+    } else {
+        wfds_ptr = NULL;
+    }
+    if (efd_addr) {
+        if (copy_from_user_fdset(&efds, efd_addr, n))
+            return -TARGET_EFAULT;
+        efds_ptr = &efds;
+    } else {
+        efds_ptr = NULL;
+    }
+
+    if (target_tv_addr) {
+        if (copy_from_user_timeval(&tv, target_tv_addr))
+            return -TARGET_EFAULT;
+        tv_ptr = &tv;
+    } else {
+        tv_ptr = NULL;
+    }
+
+    ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
+
+    if (!is_error(ret)) {
+        if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n))
+            return -TARGET_EFAULT;
+        if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n))
+            return -TARGET_EFAULT;
+        if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n))
+            return -TARGET_EFAULT;
+
+        if (target_tv_addr && copy_to_user_timeval(target_tv_addr, &tv))
+            return -TARGET_EFAULT;
+    }
+
+    return ret;
+}
+
+static inline abi_long target_to_host_sockaddr(struct sockaddr *addr,
+                                               abi_ulong target_addr,
+                                               socklen_t len)
+{
+    struct target_sockaddr *target_saddr;
+
+    target_saddr = lock_user(VERIFY_READ, target_addr, len, 1);
+    if (!target_saddr)
+        return -TARGET_EFAULT;
+    memcpy(addr, target_saddr, len);
+    addr->sa_family = tswap16(target_saddr->sa_family);
+    unlock_user(target_saddr, target_addr, 0);
+
+    return 0;
+}
+
+static inline abi_long host_to_target_sockaddr(abi_ulong target_addr,
+                                               struct sockaddr *addr,
+                                               socklen_t len)
+{
+    struct target_sockaddr *target_saddr;
+
+    target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0);
+    if (!target_saddr)
+        return -TARGET_EFAULT;
+    memcpy(target_saddr, addr, len);
+    target_saddr->sa_family = tswap16(addr->sa_family);
+    unlock_user(target_saddr, target_addr, len);
+
+    return 0;
+}
+
+/* ??? Should this also swap msgh->name?  */
+static inline abi_long target_to_host_cmsg(struct msghdr *msgh,
+                                           struct target_msghdr *target_msgh)
+{
+    struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
+    abi_long msg_controllen;
+    abi_ulong target_cmsg_addr;
+    struct target_cmsghdr *target_cmsg;
+    socklen_t space = 0;
+    
+    msg_controllen = tswapl(target_msgh->msg_controllen);
+    if (msg_controllen < sizeof (struct target_cmsghdr)) 
+        goto the_end;
+    target_cmsg_addr = tswapl(target_msgh->msg_control);
+    target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1);
+    if (!target_cmsg)
+        return -TARGET_EFAULT;
+
+    while (cmsg && target_cmsg) {
+        void *data = CMSG_DATA(cmsg);
+        void *target_data = TARGET_CMSG_DATA(target_cmsg);
+
+        int len = tswapl(target_cmsg->cmsg_len)
+                  - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr));
+
+        space += CMSG_SPACE(len);
+        if (space > msgh->msg_controllen) {
+            space -= CMSG_SPACE(len);
+            gemu_log("Host cmsg overflow\n");
+            break;
+        }
+
+        cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level);
+        cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type);
+        cmsg->cmsg_len = CMSG_LEN(len);
+
+        if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
+            gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
+            memcpy(data, target_data, len);
+        } else {
+            int *fd = (int *)data;
+            int *target_fd = (int *)target_data;
+            int i, numfds = len / sizeof(int);
+
+            for (i = 0; i < numfds; i++)
+                fd[i] = tswap32(target_fd[i]);
+        }
+
+        cmsg = CMSG_NXTHDR(msgh, cmsg);
+        target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
+    }
+    unlock_user(target_cmsg, target_cmsg_addr, 0);
+ the_end:
+    msgh->msg_controllen = space;
+    return 0;
+}
+
+/* ??? Should this also swap msgh->name?  */
+static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh,
+                                           struct msghdr *msgh)
+{
+    struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh);
+    abi_long msg_controllen;
+    abi_ulong target_cmsg_addr;
+    struct target_cmsghdr *target_cmsg;
+    socklen_t space = 0;
+
+    msg_controllen = tswapl(target_msgh->msg_controllen);
+    if (msg_controllen < sizeof (struct target_cmsghdr)) 
+        goto the_end;
+    target_cmsg_addr = tswapl(target_msgh->msg_control);
+    target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0);
+    if (!target_cmsg)
+        return -TARGET_EFAULT;
+
+    while (cmsg && target_cmsg) {
+        void *data = CMSG_DATA(cmsg);
+        void *target_data = TARGET_CMSG_DATA(target_cmsg);
+
+        int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr));
+
+        space += TARGET_CMSG_SPACE(len);
+        if (space > msg_controllen) {
+            space -= TARGET_CMSG_SPACE(len);
+            gemu_log("Target cmsg overflow\n");
+            break;
+        }
+
+        target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level);
+        target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type);
+        target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len));
+
+        if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) {
+            gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type);
+            memcpy(target_data, data, len);
+        } else {
+            int *fd = (int *)data;
+            int *target_fd = (int *)target_data;
+            int i, numfds = len / sizeof(int);
+
+            for (i = 0; i < numfds; i++)
+                target_fd[i] = tswap32(fd[i]);
+        }
+
+        cmsg = CMSG_NXTHDR(msgh, cmsg);
+        target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg);
+    }
+    unlock_user(target_cmsg, target_cmsg_addr, space);
+ the_end:
+    target_msgh->msg_controllen = tswapl(space);
+    return 0;
+}
+
+/* do_setsockopt() Must return target values and target errnos. */
+static abi_long do_setsockopt(int sockfd, int level, int optname,
+                              abi_ulong optval_addr, socklen_t optlen)
+{
+    abi_long ret;
+    int val;
+
+    switch(level) {
+    case SOL_TCP:
+        /* TCP options all take an 'int' value.  */
+        if (optlen < sizeof(uint32_t))
+            return -TARGET_EINVAL;
+
+        if (get_user_u32(val, optval_addr))
+            return -TARGET_EFAULT;
+        ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
+        break;
+    case SOL_IP:
+        switch(optname) {
+        case IP_TOS:
+        case IP_TTL:
+        case IP_HDRINCL:
+        case IP_ROUTER_ALERT:
+        case IP_RECVOPTS:
+        case IP_RETOPTS:
+        case IP_PKTINFO:
+        case IP_MTU_DISCOVER:
+        case IP_RECVERR:
+        case IP_RECVTOS:
+#ifdef IP_FREEBIND
+        case IP_FREEBIND:
+#endif
+        case IP_MULTICAST_TTL:
+        case IP_MULTICAST_LOOP:
+            val = 0;
+            if (optlen >= sizeof(uint32_t)) {
+                if (get_user_u32(val, optval_addr))
+                    return -TARGET_EFAULT;
+            } else if (optlen >= 1) {
+                if (get_user_u8(val, optval_addr))
+                    return -TARGET_EFAULT;
+            }
+            ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val)));
+            break;
+        default:
+            goto unimplemented;
+        }
+        break;
+    case TARGET_SOL_SOCKET:
+        switch (optname) {
+            /* Options with 'int' argument.  */
+        case TARGET_SO_DEBUG:
+		optname = SO_DEBUG;
+		break;
+        case TARGET_SO_REUSEADDR:
+		optname = SO_REUSEADDR;
+		break;
+        case TARGET_SO_TYPE:
+		optname = SO_TYPE;
+		break;
+        case TARGET_SO_ERROR:
+		optname = SO_ERROR;
+		break;
+        case TARGET_SO_DONTROUTE:
+		optname = SO_DONTROUTE;
+		break;
+        case TARGET_SO_BROADCAST:
+		optname = SO_BROADCAST;
+		break;
+        case TARGET_SO_SNDBUF:
+		optname = SO_SNDBUF;
+		break;
+        case TARGET_SO_RCVBUF:
+		optname = SO_RCVBUF;
+		break;
+        case TARGET_SO_KEEPALIVE:
+		optname = SO_KEEPALIVE;
+		break;
+        case TARGET_SO_OOBINLINE:
+		optname = SO_OOBINLINE;
+		break;
+        case TARGET_SO_NO_CHECK:
+		optname = SO_NO_CHECK;
+		break;
+        case TARGET_SO_PRIORITY:
+		optname = SO_PRIORITY;
+		break;
+#ifdef SO_BSDCOMPAT
+        case TARGET_SO_BSDCOMPAT:
+		optname = SO_BSDCOMPAT;
+		break;
+#endif
+        case TARGET_SO_PASSCRED:
+		optname = SO_PASSCRED;
+		break;
+        case TARGET_SO_TIMESTAMP:
+		optname = SO_TIMESTAMP;
+		break;
+        case TARGET_SO_RCVLOWAT:
+		optname = SO_RCVLOWAT;
+		break;
+        case TARGET_SO_RCVTIMEO:
+		optname = SO_RCVTIMEO;
+		break;
+        case TARGET_SO_SNDTIMEO:
+		optname = SO_SNDTIMEO;
+		break;
+            break;
+        default:
+            goto unimplemented;
+        }
+	if (optlen < sizeof(uint32_t))
+            return -TARGET_EINVAL;
+
+	if (get_user_u32(val, optval_addr))
+            return -TARGET_EFAULT;
+	ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val)));
+        break;
+    default:
+    unimplemented:
+        gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname);
+        ret = -TARGET_ENOPROTOOPT;
+    }
+    return ret;
+}
+
+/* do_getsockopt() Must return target values and target errnos. */
+static abi_long do_getsockopt(int sockfd, int level, int optname,
+                              abi_ulong optval_addr, abi_ulong optlen)
+{
+    abi_long ret;
+    int len, val;
+    socklen_t lv;
+
+    switch(level) {
+    case TARGET_SOL_SOCKET:
+    	level = SOL_SOCKET;
+	switch (optname) {
+	case TARGET_SO_LINGER:
+	case TARGET_SO_RCVTIMEO:
+	case TARGET_SO_SNDTIMEO:
+	case TARGET_SO_PEERCRED:
+	case TARGET_SO_PEERNAME:
+	    /* These don't just return a single integer */
+	    goto unimplemented;
+        default:
+            goto int_case;
+        }
+        break;
+    case SOL_TCP:
+        /* TCP options all take an 'int' value.  */
+    int_case:
+        if (get_user_u32(len, optlen))
+            return -TARGET_EFAULT;
+        if (len < 0)
+            return -TARGET_EINVAL;
+        lv = sizeof(int);
+        ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
+        if (ret < 0)
+            return ret;
+        val = tswap32(val);
+        if (len > lv)
+            len = lv;
+        if (len == 4) {
+            if (put_user_u32(val, optval_addr))
+                return -TARGET_EFAULT;
+        } else {
+            if (put_user_u8(val, optval_addr))
+                return -TARGET_EFAULT;
+	}
+        if (put_user_u32(len, optlen))
+            return -TARGET_EFAULT;
+        break;
+    case SOL_IP:
+        switch(optname) {
+        case IP_TOS:
+        case IP_TTL:
+        case IP_HDRINCL:
+        case IP_ROUTER_ALERT:
+        case IP_RECVOPTS:
+        case IP_RETOPTS:
+        case IP_PKTINFO:
+        case IP_MTU_DISCOVER:
+        case IP_RECVERR:
+        case IP_RECVTOS:
+#ifdef IP_FREEBIND
+        case IP_FREEBIND:
+#endif
+        case IP_MULTICAST_TTL:
+        case IP_MULTICAST_LOOP:
+            if (get_user_u32(len, optlen))
+                return -TARGET_EFAULT;
+            if (len < 0)
+                return -TARGET_EINVAL;
+            lv = sizeof(int);
+            ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv));
+            if (ret < 0)
+                return ret;
+            if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) {
+                len = 1;
+                if (put_user_u32(len, optlen)
+                    || put_user_u8(val, optval_addr))
+                    return -TARGET_EFAULT;
+            } else {
+                if (len > sizeof(int))
+                    len = sizeof(int);
+                if (put_user_u32(len, optlen)
+                    || put_user_u32(val, optval_addr))
+                    return -TARGET_EFAULT;
+            }
+            break;
+        default:
+            ret = -TARGET_ENOPROTOOPT;
+            break;
+        }
+        break;
+    default:
+    unimplemented:
+        gemu_log("getsockopt level=%d optname=%d not yet supported\n",
+                 level, optname);
+        ret = -TARGET_EOPNOTSUPP;
+        break;
+    }
+    return ret;
+}
+
+/* FIXME
+ * lock_iovec()/unlock_iovec() have a return code of 0 for success where
+ * other lock functions have a return code of 0 for failure.
+ */
+static abi_long lock_iovec(int type, struct iovec *vec, abi_ulong target_addr,
+                           int count, int copy)
+{
+    struct target_iovec *target_vec;
+    abi_ulong base;
+    int i;
+
+    target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1);
+    if (!target_vec)
+        return -TARGET_EFAULT;
+    for(i = 0;i < count; i++) {
+        base = tswapl(target_vec[i].iov_base);
+        vec[i].iov_len = tswapl(target_vec[i].iov_len);
+        if (vec[i].iov_len != 0) {
+            vec[i].iov_base = lock_user(type, base, vec[i].iov_len, copy);
+            /* Don't check lock_user return value. We must call writev even
+               if a element has invalid base address. */
+        } else {
+            /* zero length pointer is ignored */
+            vec[i].iov_base = NULL;
+        }
+    }
+    unlock_user (target_vec, target_addr, 0);
+    return 0;
+}
+
+static abi_long unlock_iovec(struct iovec *vec, abi_ulong target_addr,
+                             int count, int copy)
+{
+    struct target_iovec *target_vec;
+    abi_ulong base;
+    int i;
+
+    target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1);
+    if (!target_vec)
+        return -TARGET_EFAULT;
+    for(i = 0;i < count; i++) {
+        if (target_vec[i].iov_base) {
+            base = tswapl(target_vec[i].iov_base);
+            unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0);
+        }
+    }
+    unlock_user (target_vec, target_addr, 0);
+
+    return 0;
+}
+
+/* do_socket() Must return target values and target errnos. */
+static abi_long do_socket(int domain, int type, int protocol)
+{
+#if defined(TARGET_MIPS)
+    switch(type) {
+    case TARGET_SOCK_DGRAM:
+        type = SOCK_DGRAM;
+        break;
+    case TARGET_SOCK_STREAM:
+        type = SOCK_STREAM;
+        break;
+    case TARGET_SOCK_RAW:
+        type = SOCK_RAW;
+        break;
+    case TARGET_SOCK_RDM:
+        type = SOCK_RDM;
+        break;
+    case TARGET_SOCK_SEQPACKET:
+        type = SOCK_SEQPACKET;
+        break;
+    case TARGET_SOCK_PACKET:
+        type = SOCK_PACKET;
+        break;
+    }
+#endif
+    if (domain == PF_NETLINK)
+        return -EAFNOSUPPORT; /* do not NETLINK socket connections possible */
+    return get_errno(socket(domain, type, protocol));
+}
+
+/* do_bind() Must return target values and target errnos. */
+static abi_long do_bind(int sockfd, abi_ulong target_addr,
+                        socklen_t addrlen)
+{
+    void *addr = alloca(addrlen);
+
+    target_to_host_sockaddr(addr, target_addr, addrlen);
+    return get_errno(bind(sockfd, addr, addrlen));
+}
+
+/* do_connect() Must return target values and target errnos. */
+static abi_long do_connect(int sockfd, abi_ulong target_addr,
+                           socklen_t addrlen)
+{
+    void *addr = alloca(addrlen);
+
+    target_to_host_sockaddr(addr, target_addr, addrlen);
+    return get_errno(connect(sockfd, addr, addrlen));
+}
+
+/* do_sendrecvmsg() Must return target values and target errnos. */
+static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg,
+                               int flags, int send)
+{
+    abi_long ret, len;
+    struct target_msghdr *msgp;
+    struct msghdr msg;
+    int count;
+    struct iovec *vec;
+    abi_ulong target_vec;
+
+    /* FIXME */
+    if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE,
+                          msgp,
+                          target_msg,
+                          send ? 1 : 0))
+        return -TARGET_EFAULT;
+    if (msgp->msg_name) {
+        msg.msg_namelen = tswap32(msgp->msg_namelen);
+        msg.msg_name = alloca(msg.msg_namelen);
+        target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name),
+                                msg.msg_namelen);
+    } else {
+        msg.msg_name = NULL;
+        msg.msg_namelen = 0;
+    }
+    msg.msg_controllen = 2 * tswapl(msgp->msg_controllen);
+    msg.msg_control = alloca(msg.msg_controllen);
+    msg.msg_flags = tswap32(msgp->msg_flags);
+
+    count = tswapl(msgp->msg_iovlen);
+    vec = alloca(count * sizeof(struct iovec));
+    target_vec = tswapl(msgp->msg_iov);
+    lock_iovec(send ? VERIFY_READ : VERIFY_WRITE, vec, target_vec, count, send);
+    msg.msg_iovlen = count;
+    msg.msg_iov = vec;
+
+    if (send) {
+        ret = target_to_host_cmsg(&msg, msgp);
+        if (ret == 0)
+            ret = get_errno(sendmsg(fd, &msg, flags));
+    } else {
+        ret = get_errno(recvmsg(fd, &msg, flags));
+        if (!is_error(ret)) {
+            len = ret;
+            ret = host_to_target_cmsg(msgp, &msg);
+            if (!is_error(ret))
+                ret = len;
+        }
+    }
+    unlock_iovec(vec, target_vec, count, !send);
+    unlock_user_struct(msgp, target_msg, send ? 0 : 1);
+    return ret;
+}
+
+/* do_accept() Must return target values and target errnos. */
+static abi_long do_accept(int fd, abi_ulong target_addr,
+                          abi_ulong target_addrlen_addr)
+{
+    socklen_t addrlen;
+    void *addr;
+    abi_long ret;
+
+    if (get_user_u32(addrlen, target_addrlen_addr))
+        return -TARGET_EFAULT;
+
+    addr = alloca(addrlen);
+
+    ret = get_errno(accept(fd, addr, &addrlen));
+    if (!is_error(ret)) {
+        host_to_target_sockaddr(target_addr, addr, addrlen);
+        if (put_user_u32(addrlen, target_addrlen_addr))
+            ret = -TARGET_EFAULT;
+    }
+    return ret;
+}
+
+/* do_getpeername() Must return target values and target errnos. */
+static abi_long do_getpeername(int fd, abi_ulong target_addr,
+                               abi_ulong target_addrlen_addr)
+{
+    socklen_t addrlen;
+    void *addr;
+    abi_long ret;
+
+    if (get_user_u32(addrlen, target_addrlen_addr))
+        return -TARGET_EFAULT;
+
+    addr = alloca(addrlen);
+
+    ret = get_errno(getpeername(fd, addr, &addrlen));
+    if (!is_error(ret)) {
+        host_to_target_sockaddr(target_addr, addr, addrlen);
+        if (put_user_u32(addrlen, target_addrlen_addr))
+            ret = -TARGET_EFAULT;
+    }
+    return ret;
+}
+
+/* do_getsockname() Must return target values and target errnos. */
+static abi_long do_getsockname(int fd, abi_ulong target_addr,
+                               abi_ulong target_addrlen_addr)
+{
+    socklen_t addrlen;
+    void *addr;
+    abi_long ret;
+
+    if (get_user_u32(addrlen, target_addrlen_addr))
+        return -TARGET_EFAULT;
+
+    addr = alloca(addrlen);
+
+    ret = get_errno(getsockname(fd, addr, &addrlen));
+    if (!is_error(ret)) {
+        host_to_target_sockaddr(target_addr, addr, addrlen);
+        if (put_user_u32(addrlen, target_addrlen_addr))
+            ret = -TARGET_EFAULT;
+    }
+    return ret;
+}
+
+/* do_socketpair() Must return target values and target errnos. */
+static abi_long do_socketpair(int domain, int type, int protocol,
+                              abi_ulong target_tab_addr)
+{
+    int tab[2];
+    abi_long ret;
+
+    ret = get_errno(socketpair(domain, type, protocol, tab));
+    if (!is_error(ret)) {
+        if (put_user_s32(tab[0], target_tab_addr)
+            || put_user_s32(tab[1], target_tab_addr + sizeof(tab[0])))
+            ret = -TARGET_EFAULT;
+    }
+    return ret;
+}
+
+/* do_sendto() Must return target values and target errnos. */
+static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags,
+                          abi_ulong target_addr, socklen_t addrlen)
+{
+    void *addr;
+    void *host_msg;
+    abi_long ret;
+
+    host_msg = lock_user(VERIFY_READ, msg, len, 1);
+    if (!host_msg)
+        return -TARGET_EFAULT;
+    if (target_addr) {
+        addr = alloca(addrlen);
+        target_to_host_sockaddr(addr, target_addr, addrlen);
+        ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen));
+    } else {
+        ret = get_errno(send(fd, host_msg, len, flags));
+    }
+    unlock_user(host_msg, msg, 0);
+    return ret;
+}
+
+/* do_recvfrom() Must return target values and target errnos. */
+static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags,
+                            abi_ulong target_addr,
+                            abi_ulong target_addrlen)
+{
+    socklen_t addrlen;
+    void *addr;
+    void *host_msg;
+    abi_long ret;
+
+    host_msg = lock_user(VERIFY_WRITE, msg, len, 0);
+    if (!host_msg)
+        return -TARGET_EFAULT;
+    if (target_addr) {
+        if (get_user_u32(addrlen, target_addrlen)) {
+            ret = -TARGET_EFAULT;
+            goto fail;
+        }
+        addr = alloca(addrlen);
+        ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen));
+    } else {
+        addr = NULL; /* To keep compiler quiet.  */
+        ret = get_errno(recv(fd, host_msg, len, flags));
+    }
+    if (!is_error(ret)) {
+        if (target_addr) {
+            host_to_target_sockaddr(target_addr, addr, addrlen);
+            if (put_user_u32(addrlen, target_addrlen)) {
+                ret = -TARGET_EFAULT;
+                goto fail;
+            }
+        }
+        unlock_user(host_msg, msg, len);
+    } else {
+fail:
+        unlock_user(host_msg, msg, 0);
+    }
+    return ret;
+}
+
+#ifdef TARGET_NR_socketcall
+/* do_socketcall() Must return target values and target errnos. */
+static abi_long do_socketcall(int num, abi_ulong vptr)
+{
+    abi_long ret;
+    const int n = sizeof(abi_ulong);
+
+    switch(num) {
+    case SOCKOP_socket:
+	{
+            int domain, type, protocol;
+
+            if (get_user_s32(domain, vptr)
+                || get_user_s32(type, vptr + n)
+                || get_user_s32(protocol, vptr + 2 * n))
+                return -TARGET_EFAULT;
+
+            ret = do_socket(domain, type, protocol);
+	}
+        break;
+    case SOCKOP_bind:
+	{
+            int sockfd;
+            abi_ulong target_addr;
+            socklen_t addrlen;
+
+            if (get_user_s32(sockfd, vptr)
+                || get_user_ual(target_addr, vptr + n)
+                || get_user_u32(addrlen, vptr + 2 * n))
+                return -TARGET_EFAULT;
+
+            ret = do_bind(sockfd, target_addr, addrlen);
+        }
+        break;
+    case SOCKOP_connect:
+        {
+            int sockfd;
+            abi_ulong target_addr;
+            socklen_t addrlen;
+
+            if (get_user_s32(sockfd, vptr)
+                || get_user_ual(target_addr, vptr + n)
+                || get_user_u32(addrlen, vptr + 2 * n))
+                return -TARGET_EFAULT;
+
+            ret = do_connect(sockfd, target_addr, addrlen);
+        }
+        break;
+    case SOCKOP_listen:
+        {
+            int sockfd, backlog;
+
+            if (get_user_s32(sockfd, vptr)
+                || get_user_s32(backlog, vptr + n))
+                return -TARGET_EFAULT;
+
+            ret = get_errno(listen(sockfd, backlog));
+        }
+        break;
+    case SOCKOP_accept:
+        {
+            int sockfd;
+            abi_ulong target_addr, target_addrlen;
+
+            if (get_user_s32(sockfd, vptr)
+                || get_user_ual(target_addr, vptr + n)
+                || get_user_u32(target_addrlen, vptr + 2 * n))
+                return -TARGET_EFAULT;
+
+            ret = do_accept(sockfd, target_addr, target_addrlen);
+        }
+        break;
+    case SOCKOP_getsockname:
+        {
+            int sockfd;
+            abi_ulong target_addr, target_addrlen;
+
+            if (get_user_s32(sockfd, vptr)
+                || get_user_ual(target_addr, vptr + n)
+                || get_user_u32(target_addrlen, vptr + 2 * n))
+                return -TARGET_EFAULT;
+
+            ret = do_getsockname(sockfd, target_addr, target_addrlen);
+        }
+        break;
+    case SOCKOP_getpeername:
+        {
+            int sockfd;
+            abi_ulong target_addr, target_addrlen;
+
+            if (get_user_s32(sockfd, vptr)
+                || get_user_ual(target_addr, vptr + n)
+                || get_user_u32(target_addrlen, vptr + 2 * n))
+                return -TARGET_EFAULT;
+
+            ret = do_getpeername(sockfd, target_addr, target_addrlen);
+        }
+        break;
+    case SOCKOP_socketpair:
+        {
+            int domain, type, protocol;
+            abi_ulong tab;
+
+            if (get_user_s32(domain, vptr)
+                || get_user_s32(type, vptr + n)
+                || get_user_s32(protocol, vptr + 2 * n)
+                || get_user_ual(tab, vptr + 3 * n))
+                return -TARGET_EFAULT;
+
+            ret = do_socketpair(domain, type, protocol, tab);
+        }
+        break;
+    case SOCKOP_send:
+        {
+            int sockfd;
+            abi_ulong msg;
+            size_t len;
+            int flags;
+
+            if (get_user_s32(sockfd, vptr)
+                || get_user_ual(msg, vptr + n)
+                || get_user_ual(len, vptr + 2 * n)
+                || get_user_s32(flags, vptr + 3 * n))
+                return -TARGET_EFAULT;
+
+            ret = do_sendto(sockfd, msg, len, flags, 0, 0);
+        }
+        break;
+    case SOCKOP_recv:
+        {
+            int sockfd;
+            abi_ulong msg;
+            size_t len;
+            int flags;
+
+            if (get_user_s32(sockfd, vptr)
+                || get_user_ual(msg, vptr + n)
+                || get_user_ual(len, vptr + 2 * n)
+                || get_user_s32(flags, vptr + 3 * n))
+                return -TARGET_EFAULT;
+
+            ret = do_recvfrom(sockfd, msg, len, flags, 0, 0);
+        }
+        break;
+    case SOCKOP_sendto:
+        {
+            int sockfd;
+            abi_ulong msg;
+            size_t len;
+            int flags;
+            abi_ulong addr;
+            socklen_t addrlen;
+
+            if (get_user_s32(sockfd, vptr)
+                || get_user_ual(msg, vptr + n)
+                || get_user_ual(len, vptr + 2 * n)
+                || get_user_s32(flags, vptr + 3 * n)
+                || get_user_ual(addr, vptr + 4 * n)
+                || get_user_u32(addrlen, vptr + 5 * n))
+                return -TARGET_EFAULT;
+
+            ret = do_sendto(sockfd, msg, len, flags, addr, addrlen);
+        }
+        break;
+    case SOCKOP_recvfrom:
+        {
+            int sockfd;
+            abi_ulong msg;
+            size_t len;
+            int flags;
+            abi_ulong addr;
+            socklen_t addrlen;
+
+            if (get_user_s32(sockfd, vptr)
+                || get_user_ual(msg, vptr + n)
+                || get_user_ual(len, vptr + 2 * n)
+                || get_user_s32(flags, vptr + 3 * n)
+                || get_user_ual(addr, vptr + 4 * n)
+                || get_user_u32(addrlen, vptr + 5 * n))
+                return -TARGET_EFAULT;
+
+            ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen);
+        }
+        break;
+    case SOCKOP_shutdown:
+        {
+            int sockfd, how;
+
+            if (get_user_s32(sockfd, vptr)
+                || get_user_s32(how, vptr + n))
+                return -TARGET_EFAULT;
+
+            ret = get_errno(shutdown(sockfd, how));
+        }
+        break;
+    case SOCKOP_sendmsg:
+    case SOCKOP_recvmsg:
+        {
+            int fd;
+            abi_ulong target_msg;
+            int flags;
+
+            if (get_user_s32(fd, vptr)
+                || get_user_ual(target_msg, vptr + n)
+                || get_user_s32(flags, vptr + 2 * n))
+                return -TARGET_EFAULT;
+
+            ret = do_sendrecvmsg(fd, target_msg, flags,
+                                 (num == SOCKOP_sendmsg));
+        }
+        break;
+    case SOCKOP_setsockopt:
+        {
+            int sockfd;
+            int level;
+            int optname;
+            abi_ulong optval;
+            socklen_t optlen;
+
+            if (get_user_s32(sockfd, vptr)
+                || get_user_s32(level, vptr + n)
+                || get_user_s32(optname, vptr + 2 * n)
+                || get_user_ual(optval, vptr + 3 * n)
+                || get_user_u32(optlen, vptr + 4 * n))
+                return -TARGET_EFAULT;
+
+            ret = do_setsockopt(sockfd, level, optname, optval, optlen);
+        }
+        break;
+    case SOCKOP_getsockopt:
+        {
+            int sockfd;
+            int level;
+            int optname;
+            abi_ulong optval;
+            socklen_t optlen;
+
+            if (get_user_s32(sockfd, vptr)
+                || get_user_s32(level, vptr + n)
+                || get_user_s32(optname, vptr + 2 * n)
+                || get_user_ual(optval, vptr + 3 * n)
+                || get_user_u32(optlen, vptr + 4 * n))
+                return -TARGET_EFAULT;
+
+            ret = do_getsockopt(sockfd, level, optname, optval, optlen);
+        }
+        break;
+    default:
+        gemu_log("Unsupported socketcall: %d\n", num);
+        ret = -TARGET_ENOSYS;
+        break;
+    }
+    return ret;
+}
+#endif
+
+#ifdef TARGET_NR_ipc
+#define N_SHM_REGIONS	32
+
+static struct shm_region {
+    abi_ulong	start;
+    abi_ulong	size;
+} shm_regions[N_SHM_REGIONS];
+#endif
+
+struct target_ipc_perm
+{
+    abi_long __key;
+    abi_ulong uid;
+    abi_ulong gid;
+    abi_ulong cuid;
+    abi_ulong cgid;
+    unsigned short int mode;
+    unsigned short int __pad1;
+    unsigned short int __seq;
+    unsigned short int __pad2;
+    abi_ulong __unused1;
+    abi_ulong __unused2;
+};
+
+struct target_semid_ds
+{
+  struct target_ipc_perm sem_perm;
+  abi_ulong sem_otime;
+  abi_ulong __unused1;
+  abi_ulong sem_ctime;
+  abi_ulong __unused2;
+  abi_ulong sem_nsems;
+  abi_ulong __unused3;
+  abi_ulong __unused4;
+};
+
+static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip,
+                                               abi_ulong target_addr)
+{
+    struct target_ipc_perm *target_ip;
+    struct target_semid_ds *target_sd;
+
+    if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
+        return -TARGET_EFAULT;
+    target_ip=&(target_sd->sem_perm);
+    host_ip->__key = tswapl(target_ip->__key);
+    host_ip->uid = tswapl(target_ip->uid);
+    host_ip->gid = tswapl(target_ip->gid);
+    host_ip->cuid = tswapl(target_ip->cuid);
+    host_ip->cgid = tswapl(target_ip->cgid);
+    host_ip->mode = tswapl(target_ip->mode);
+    unlock_user_struct(target_sd, target_addr, 0);
+    return 0;
+}
+
+static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr,
+                                               struct ipc_perm *host_ip)
+{
+    struct target_ipc_perm *target_ip;
+    struct target_semid_ds *target_sd;
+
+    if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
+        return -TARGET_EFAULT;
+    target_ip = &(target_sd->sem_perm);
+    target_ip->__key = tswapl(host_ip->__key);
+    target_ip->uid = tswapl(host_ip->uid);
+    target_ip->gid = tswapl(host_ip->gid);
+    target_ip->cuid = tswapl(host_ip->cuid);
+    target_ip->cgid = tswapl(host_ip->cgid);
+    target_ip->mode = tswapl(host_ip->mode);
+    unlock_user_struct(target_sd, target_addr, 1);
+    return 0;
+}
+
+static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd,
+                                               abi_ulong target_addr)
+{
+    struct target_semid_ds *target_sd;
+
+    if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1))
+        return -TARGET_EFAULT;
+    target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr);
+    host_sd->sem_nsems = tswapl(target_sd->sem_nsems);
+    host_sd->sem_otime = tswapl(target_sd->sem_otime);
+    host_sd->sem_ctime = tswapl(target_sd->sem_ctime);
+    unlock_user_struct(target_sd, target_addr, 0);
+    return 0;
+}
+
+static inline abi_long host_to_target_semid_ds(abi_ulong target_addr,
+                                               struct semid_ds *host_sd)
+{
+    struct target_semid_ds *target_sd;
+
+    if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0))
+        return -TARGET_EFAULT;
+    host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm));
+    target_sd->sem_nsems = tswapl(host_sd->sem_nsems);
+    target_sd->sem_otime = tswapl(host_sd->sem_otime);
+    target_sd->sem_ctime = tswapl(host_sd->sem_ctime);
+    unlock_user_struct(target_sd, target_addr, 1);
+    return 0;
+}
+
+union semun {
+	int val;
+	struct semid_ds *buf;
+	unsigned short *array;
+};
+
+union target_semun {
+	int val;
+	abi_long buf;
+	unsigned short int *array;
+};
+
+static inline abi_long target_to_host_semun(int cmd,
+                                            union semun *host_su,
+                                            abi_ulong target_addr,
+                                            struct semid_ds *ds)
+{
+    union target_semun *target_su;
+
+    switch( cmd ) {
+	case IPC_STAT:
+	case IPC_SET:
+           if (!lock_user_struct(VERIFY_READ, target_su, target_addr, 1))
+               return -TARGET_EFAULT;
+	   target_to_host_semid_ds(ds,target_su->buf);
+	   host_su->buf = ds;
+           unlock_user_struct(target_su, target_addr, 0);
+	   break;
+	case GETVAL:
+	case SETVAL:
+           if (!lock_user_struct(VERIFY_READ, target_su, target_addr, 1))
+               return -TARGET_EFAULT;
+	   host_su->val = tswapl(target_su->val);
+           unlock_user_struct(target_su, target_addr, 0);
+	   break;
+	case GETALL:
+	case SETALL:
+           if (!lock_user_struct(VERIFY_READ, target_su, target_addr, 1))
+               return -TARGET_EFAULT;
+	   *host_su->array = tswap16(*target_su->array);
+           unlock_user_struct(target_su, target_addr, 0);
+	   break;
+	default:
+           gemu_log("semun operation not fully supported: %d\n", (int)cmd);
+    }
+    return 0;
+}
+
+static inline abi_long host_to_target_semun(int cmd,
+                                            abi_ulong target_addr,
+                                            union semun *host_su,
+                                            struct semid_ds *ds)
+{
+    union target_semun *target_su;
+
+    switch( cmd ) {
+	case IPC_STAT:
+	case IPC_SET:
+           if (lock_user_struct(VERIFY_WRITE, target_su, target_addr, 0))
+               return -TARGET_EFAULT;
+	   host_to_target_semid_ds(target_su->buf,ds);
+           unlock_user_struct(target_su, target_addr, 1);
+	   break;
+	case GETVAL:
+	case SETVAL:
+           if (lock_user_struct(VERIFY_WRITE, target_su, target_addr, 0))
+               return -TARGET_EFAULT;
+	   target_su->val = tswapl(host_su->val);
+           unlock_user_struct(target_su, target_addr, 1);
+	   break;
+	case GETALL:
+	case SETALL:
+           if (lock_user_struct(VERIFY_WRITE, target_su, target_addr, 0))
+               return -TARGET_EFAULT;
+	   *target_su->array = tswap16(*host_su->array);
+           unlock_user_struct(target_su, target_addr, 1);
+	   break;
+        default:
+           gemu_log("semun operation not fully supported: %d\n", (int)cmd);
+    }
+    return 0;
+}
+
+static inline abi_long do_semctl(int first, int second, int third,
+                                 abi_long ptr)
+{
+    union semun arg;
+    struct semid_ds dsarg;
+    int cmd = third&0xff;
+    abi_long ret = 0;
+
+    switch( cmd ) {
+	case GETVAL:
+            target_to_host_semun(cmd,&arg,ptr,&dsarg);
+            ret = get_errno(semctl(first, second, cmd, arg));
+            host_to_target_semun(cmd,ptr,&arg,&dsarg);
+            break;
+	case SETVAL:
+            target_to_host_semun(cmd,&arg,ptr,&dsarg);
+            ret = get_errno(semctl(first, second, cmd, arg));
+            host_to_target_semun(cmd,ptr,&arg,&dsarg);
+            break;
+	case GETALL:
+            target_to_host_semun(cmd,&arg,ptr,&dsarg);
+            ret = get_errno(semctl(first, second, cmd, arg));
+            host_to_target_semun(cmd,ptr,&arg,&dsarg);
+            break;
+	case SETALL:
+            target_to_host_semun(cmd,&arg,ptr,&dsarg);
+            ret = get_errno(semctl(first, second, cmd, arg));
+            host_to_target_semun(cmd,ptr,&arg,&dsarg);
+            break;
+	case IPC_STAT:
+            target_to_host_semun(cmd,&arg,ptr,&dsarg);
+            ret = get_errno(semctl(first, second, cmd, arg));
+            host_to_target_semun(cmd,ptr,&arg,&dsarg);
+            break;
+	case IPC_SET:
+            target_to_host_semun(cmd,&arg,ptr,&dsarg);
+            ret = get_errno(semctl(first, second, cmd, arg));
+            host_to_target_semun(cmd,ptr,&arg,&dsarg);
+            break;
+    default:
+            ret = get_errno(semctl(first, second, cmd, arg));
+    }
+
+    return ret;
+}
+
+struct target_msqid_ds
+{
+    struct target_ipc_perm msg_perm;
+    abi_ulong msg_stime;
+#if TARGET_ABI_BITS == 32
+    abi_ulong __unused1;
+#endif
+    abi_ulong msg_rtime;
+#if TARGET_ABI_BITS == 32
+    abi_ulong __unused2;
+#endif
+    abi_ulong msg_ctime;
+#if TARGET_ABI_BITS == 32
+    abi_ulong __unused3;
+#endif
+    abi_ulong __msg_cbytes;
+    abi_ulong msg_qnum;
+    abi_ulong msg_qbytes;
+    abi_ulong msg_lspid;
+    abi_ulong msg_lrpid;
+    abi_ulong __unused4;
+    abi_ulong __unused5;
+};
+
+static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md,
+                                               abi_ulong target_addr)
+{
+    struct target_msqid_ds *target_md;
+
+    if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1))
+        return -TARGET_EFAULT;
+    if (target_to_host_ipc_perm(&(host_md->msg_perm),target_addr))
+        return -TARGET_EFAULT;
+    host_md->msg_stime = tswapl(target_md->msg_stime);
+    host_md->msg_rtime = tswapl(target_md->msg_rtime);
+    host_md->msg_ctime = tswapl(target_md->msg_ctime);
+    host_md->__msg_cbytes = tswapl(target_md->__msg_cbytes);
+    host_md->msg_qnum = tswapl(target_md->msg_qnum);
+    host_md->msg_qbytes = tswapl(target_md->msg_qbytes);
+    host_md->msg_lspid = tswapl(target_md->msg_lspid);
+    host_md->msg_lrpid = tswapl(target_md->msg_lrpid);
+    unlock_user_struct(target_md, target_addr, 0);
+    return 0;
+}
+
+static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr,
+                                               struct msqid_ds *host_md)
+{
+    struct target_msqid_ds *target_md;
+
+    if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0))
+        return -TARGET_EFAULT;
+    if (host_to_target_ipc_perm(target_addr,&(host_md->msg_perm)))
+        return -TARGET_EFAULT;
+    target_md->msg_stime = tswapl(host_md->msg_stime);
+    target_md->msg_rtime = tswapl(host_md->msg_rtime);
+    target_md->msg_ctime = tswapl(host_md->msg_ctime);
+    target_md->__msg_cbytes = tswapl(host_md->__msg_cbytes);
+    target_md->msg_qnum = tswapl(host_md->msg_qnum);
+    target_md->msg_qbytes = tswapl(host_md->msg_qbytes);
+    target_md->msg_lspid = tswapl(host_md->msg_lspid);
+    target_md->msg_lrpid = tswapl(host_md->msg_lrpid);
+    unlock_user_struct(target_md, target_addr, 1);
+    return 0;
+}
+
+struct target_msginfo {
+    int msgpool;
+    int msgmap;
+    int msgmax;
+    int msgmnb;
+    int msgmni;
+    int msgssz;
+    int msgtql;
+    unsigned short int msgseg;
+};
+
+static inline abi_long host_to_target_msginfo(abi_ulong target_addr,
+                                              struct msginfo *host_msginfo)
+{
+    struct target_msginfo *target_msginfo;
+    if (!lock_user_struct(VERIFY_WRITE, target_msginfo, target_addr, 0))
+        return -TARGET_EFAULT;
+    __put_user(host_msginfo->msgpool, &target_msginfo->msgpool);
+    __put_user(host_msginfo->msgmap, &target_msginfo->msgmap);
+    __put_user(host_msginfo->msgmax, &target_msginfo->msgmax);
+    __put_user(host_msginfo->msgmnb, &target_msginfo->msgmnb);
+    __put_user(host_msginfo->msgmni, &target_msginfo->msgmni);
+    __put_user(host_msginfo->msgssz, &target_msginfo->msgssz);
+    __put_user(host_msginfo->msgtql, &target_msginfo->msgtql);
+    __put_user(host_msginfo->msgseg, &target_msginfo->msgseg);
+    unlock_user_struct(target_msginfo, target_addr, 1);
+    return 0;
+}
+
+static inline abi_long do_msgctl(int msgid, int cmd, abi_long ptr)
+{
+    struct msqid_ds dsarg;
+    struct msginfo msginfo;
+    abi_long ret = -TARGET_EINVAL;
+
+    cmd &= 0xff;
+
+    switch (cmd) {
+    case IPC_STAT:
+    case IPC_SET:
+    case MSG_STAT:
+        if (target_to_host_msqid_ds(&dsarg,ptr))
+            return -TARGET_EFAULT;
+        ret = get_errno(msgctl(msgid, cmd, &dsarg));
+        if (host_to_target_msqid_ds(ptr,&dsarg))
+            return -TARGET_EFAULT;
+        break;
+    case IPC_RMID:
+        ret = get_errno(msgctl(msgid, cmd, NULL));
+        break;
+    case IPC_INFO:
+    case MSG_INFO:
+        ret = get_errno(msgctl(msgid, cmd, (struct msqid_ds *)&msginfo));
+        if (host_to_target_msginfo(ptr, &msginfo))
+            return -TARGET_EFAULT;
+        break;
+    }
+
+    return ret;
+}
+
+struct target_msgbuf {
+    abi_long mtype;
+    char	mtext[1];
+};
+
+static inline abi_long do_msgsnd(int msqid, abi_long msgp,
+                                 unsigned int msgsz, int msgflg)
+{
+    struct target_msgbuf *target_mb;
+    struct msgbuf *host_mb;
+    abi_long ret = 0;
+
+    if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0))
+        return -TARGET_EFAULT;
+    host_mb = malloc(msgsz+sizeof(long));
+    host_mb->mtype = (abi_long) tswapl(target_mb->mtype);
+    memcpy(host_mb->mtext, target_mb->mtext, msgsz);
+    ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg));
+    free(host_mb);
+    unlock_user_struct(target_mb, msgp, 0);
+
+    return ret;
+}
+
+static inline abi_long do_msgrcv(int msqid, abi_long msgp,
+                                 unsigned int msgsz, abi_long msgtyp,
+                                 int msgflg)
+{
+    struct target_msgbuf *target_mb;
+    char *target_mtext;
+    struct msgbuf *host_mb;
+    abi_long ret = 0;
+
+    if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0))
+        return -TARGET_EFAULT;
+
+    host_mb = malloc(msgsz+sizeof(long));
+    ret = get_errno(msgrcv(msqid, host_mb, msgsz, tswapl(msgtyp), msgflg));
+
+    if (ret > 0) {
+        abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong);
+        target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0);
+        if (!target_mtext) {
+            ret = -TARGET_EFAULT;
+            goto end;
+        }
+        memcpy(target_mb->mtext, host_mb->mtext, ret);
+        unlock_user(target_mtext, target_mtext_addr, ret);
+    }
+
+    target_mb->mtype = tswapl(host_mb->mtype);
+    free(host_mb);
+
+end:
+    if (target_mb)
+        unlock_user_struct(target_mb, msgp, 1);
+    return ret;
+}
+
+#ifdef TARGET_NR_ipc
+/* ??? This only works with linear mappings.  */
+/* do_ipc() must return target values and target errnos. */
+static abi_long do_ipc(unsigned int call, int first,
+                       int second, int third,
+                       abi_long ptr, abi_long fifth)
+{
+    int version;
+    abi_long ret = 0;
+    struct shmid_ds shm_info;
+    int i;
+
+    version = call >> 16;
+    call &= 0xffff;
+
+    switch (call) {
+    case IPCOP_semop:
+        ret = get_errno(semop(first,(struct sembuf *)g2h(ptr), second));
+        break;
+
+    case IPCOP_semget:
+        ret = get_errno(semget(first, second, third));
+        break;
+
+    case IPCOP_semctl:
+        ret = do_semctl(first, second, third, ptr);
+        break;
+
+    case IPCOP_semtimedop:
+        gemu_log("Unsupported ipc call: %d (version %d)\n", call, version);
+        ret = -TARGET_ENOSYS;
+        break;
+
+    case IPCOP_msgget:
+        ret = get_errno(msgget(first, second));
+        break;
+
+    case IPCOP_msgsnd:
+        ret = do_msgsnd(first, ptr, second, third);
+        break;
+
+    case IPCOP_msgctl:
+        ret = do_msgctl(first, second, ptr);
+        break;
+
+    case IPCOP_msgrcv:
+        switch (version) {
+        case 0:
+            {
+                struct target_ipc_kludge {
+                    abi_long msgp;
+                    abi_long msgtyp;
+                } *tmp;
+
+                if (!lock_user_struct(VERIFY_READ, tmp, ptr, 1)) {
+                    ret = -TARGET_EFAULT;
+                    break;
+                }
+
+                ret = do_msgrcv(first, tmp->msgp, second, tmp->msgtyp, third);
+
+                unlock_user_struct(tmp, ptr, 0);
+                break;
+            }
+        default:
+            ret = do_msgrcv(first, ptr, second, fifth, third);
+        }
+        break;
+
+    case IPCOP_shmat:
+        {
+            abi_ulong raddr;
+            void *host_addr;
+            /* SHM_* flags are the same on all linux platforms */
+            host_addr = shmat(first, (void *)g2h(ptr), second);
+            if (host_addr == (void *)-1) {
+                ret = get_errno((long)host_addr);
+                break;
+            }
+            raddr = h2g((unsigned long)host_addr);
+            /* find out the length of the shared memory segment */
+            
+            ret = get_errno(shmctl(first, IPC_STAT, &shm_info));
+            if (is_error(ret)) {
+                /* can't get length, bail out */
+                shmdt(host_addr);
+                break;
+            }
+            page_set_flags(raddr, raddr + shm_info.shm_segsz,
+                           PAGE_VALID | PAGE_READ |
+                           ((second & SHM_RDONLY)? 0: PAGE_WRITE));
+            for (i = 0; i < N_SHM_REGIONS; ++i) {
+                if (shm_regions[i].start == 0) {
+                    shm_regions[i].start = raddr;
+                    shm_regions[i].size = shm_info.shm_segsz;
+                    break;
+                }
+            }
+            if (put_user_ual(raddr, third))
+                return -TARGET_EFAULT;
+            ret = 0;
+        }
+	break;
+    case IPCOP_shmdt:
+	for (i = 0; i < N_SHM_REGIONS; ++i) {
+	    if (shm_regions[i].start == ptr) {
+		shm_regions[i].start = 0;
+		page_set_flags(ptr, shm_regions[i].size, 0);
+		break;
+	    }
+	}
+	ret = get_errno(shmdt((void *)g2h(ptr)));
+	break;
+
+    case IPCOP_shmget:
+	/* IPC_* flag values are the same on all linux platforms */
+	ret = get_errno(shmget(first, second, third));
+	break;
+
+	/* IPC_* and SHM_* command values are the same on all linux platforms */
+    case IPCOP_shmctl:
+        switch(second) {
+        case IPC_RMID:
+        case SHM_LOCK:
+        case SHM_UNLOCK:
+            ret = get_errno(shmctl(first, second, NULL));
+            break;
+        default:
+            goto unimplemented;
+        }
+        break;
+    default:
+    unimplemented:
+	gemu_log("Unsupported ipc call: %d (version %d)\n", call, version);
+	ret = -TARGET_ENOSYS;
+	break;
+    }
+    return ret;
+}
+#endif
+
+/* kernel structure types definitions */
+#define IFNAMSIZ        16
+
+#define STRUCT(name, list...) STRUCT_ ## name,
+#define STRUCT_SPECIAL(name) STRUCT_ ## name,
+enum {
+#include "syscall_types.h"
+};
+#undef STRUCT
+#undef STRUCT_SPECIAL
+
+#define STRUCT(name, list...) static const argtype struct_ ## name ## _def[] = { list, TYPE_NULL };
+#define STRUCT_SPECIAL(name)
+#include "syscall_types.h"
+#undef STRUCT
+#undef STRUCT_SPECIAL
+
+typedef struct IOCTLEntry {
+    unsigned int target_cmd;
+    unsigned int host_cmd;
+    const char *name;
+    int access;
+    const argtype arg_type[5];
+} IOCTLEntry;
+
+#define IOC_R 0x0001
+#define IOC_W 0x0002
+#define IOC_RW (IOC_R | IOC_W)
+
+#define MAX_STRUCT_SIZE 4096
+
+static IOCTLEntry ioctl_entries[] = {
+#define IOCTL(cmd, access, types...) \
+    { TARGET_ ## cmd, cmd, #cmd, access, { types } },
+#include "ioctls.h"
+    { 0, 0, },
+};
+
+/* ??? Implement proper locking for ioctls.  */
+/* do_ioctl() Must return target values and target errnos. */
+static abi_long do_ioctl(int fd, abi_long cmd, abi_long arg)
+{
+    const IOCTLEntry *ie;
+    const argtype *arg_type;
+    abi_long ret;
+    uint8_t buf_temp[MAX_STRUCT_SIZE];
+    int target_size;
+    void *argptr;
+
+    ie = ioctl_entries;
+    for(;;) {
+        if (ie->target_cmd == 0) {
+            gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd);
+            return -TARGET_ENOSYS;
+        }
+        if (ie->target_cmd == cmd)
+            break;
+        ie++;
+    }
+    arg_type = ie->arg_type;
+#if defined(DEBUG)
+    gemu_log("ioctl: cmd=0x%04lx (%s)\n", (long)cmd, ie->name);
+#endif
+    switch(arg_type[0]) {
+    case TYPE_NULL:
+        /* no argument */
+        ret = get_errno(ioctl(fd, ie->host_cmd));
+        break;
+    case TYPE_PTRVOID:
+    case TYPE_INT:
+        /* int argment */
+        ret = get_errno(ioctl(fd, ie->host_cmd, arg));
+        break;
+    case TYPE_PTR:
+        arg_type++;
+        target_size = thunk_type_size(arg_type, 0);
+        switch(ie->access) {
+        case IOC_R:
+            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
+            if (!is_error(ret)) {
+                argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
+                if (!argptr)
+                    return -TARGET_EFAULT;
+                thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
+                unlock_user(argptr, arg, target_size);
+            }
+            break;
+        case IOC_W:
+            argptr = lock_user(VERIFY_READ, arg, target_size, 1);
+            if (!argptr)
+                return -TARGET_EFAULT;
+            thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
+            unlock_user(argptr, arg, 0);
+            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
+            break;
+        default:
+        case IOC_RW:
+            argptr = lock_user(VERIFY_READ, arg, target_size, 1);
+            if (!argptr)
+                return -TARGET_EFAULT;
+            thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST);
+            unlock_user(argptr, arg, 0);
+            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
+            if (!is_error(ret)) {
+                argptr = lock_user(VERIFY_WRITE, arg, target_size, 0);
+                if (!argptr)
+                    return -TARGET_EFAULT;
+                thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET);
+                unlock_user(argptr, arg, target_size);
+            }
+            break;
+        }
+        break;
+    default:
+        gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n",
+                 (long)cmd, arg_type[0]);
+        ret = -TARGET_ENOSYS;
+        break;
+    }
+    return ret;
+}
+
+static const bitmask_transtbl iflag_tbl[] = {
+        { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
+        { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
+        { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
+        { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
+        { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
+        { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
+        { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
+        { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
+        { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
+        { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
+        { TARGET_IXON, TARGET_IXON, IXON, IXON },
+        { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
+        { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
+        { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
+        { 0, 0, 0, 0 }
+};
+
+static const bitmask_transtbl oflag_tbl[] = {
+	{ TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
+	{ TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
+	{ TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
+	{ TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
+	{ TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
+	{ TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
+	{ TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
+	{ TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
+	{ TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
+	{ TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
+	{ TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
+	{ TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
+	{ TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
+	{ TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
+	{ TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
+	{ TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
+	{ TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
+	{ TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
+	{ TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
+	{ TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
+	{ TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
+	{ TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
+	{ TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
+	{ TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
+	{ 0, 0, 0, 0 }
+};
+
+static const bitmask_transtbl cflag_tbl[] = {
+	{ TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
+	{ TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
+	{ TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
+	{ TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
+	{ TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
+	{ TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
+	{ TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
+	{ TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
+	{ TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
+	{ TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
+	{ TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
+	{ TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
+	{ TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
+	{ TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
+	{ TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
+	{ TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
+	{ TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
+	{ TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
+	{ TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
+	{ TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
+	{ TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
+	{ TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
+	{ TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
+	{ TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
+	{ TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
+	{ TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
+	{ TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
+	{ TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
+	{ TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
+	{ TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
+	{ TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
+	{ 0, 0, 0, 0 }
+};
+
+static const bitmask_transtbl lflag_tbl[] = {
+	{ TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
+	{ TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
+	{ TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
+	{ TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
+	{ TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
+	{ TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
+	{ TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
+	{ TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
+	{ TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
+	{ TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
+	{ TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
+	{ TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
+	{ TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
+	{ TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
+	{ TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
+	{ 0, 0, 0, 0 }
+};
+
+static void target_to_host_termios (void *dst, const void *src)
+{
+    struct host_termios *host = dst;
+    const struct target_termios *target = src;
+
+    host->c_iflag =
+        target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
+    host->c_oflag =
+        target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
+    host->c_cflag =
+        target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
+    host->c_lflag =
+        target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
+    host->c_line = target->c_line;
+
+    host->c_cc[VINTR] = target->c_cc[TARGET_VINTR];
+    host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT];
+    host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];
+    host->c_cc[VKILL] = target->c_cc[TARGET_VKILL];
+    host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];
+    host->c_cc[VTIME] = target->c_cc[TARGET_VTIME];
+    host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];
+    host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC];
+    host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];
+    host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP];
+    host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP];
+    host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];
+    host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];
+    host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];
+    host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];
+    host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];
+    host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2];
+}
+
+static void host_to_target_termios (void *dst, const void *src)
+{
+    struct target_termios *target = dst;
+    const struct host_termios *host = src;
+
+    target->c_iflag =
+        tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
+    target->c_oflag =
+        tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
+    target->c_cflag =
+        tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
+    target->c_lflag =
+        tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
+    target->c_line = host->c_line;
+
+    target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
+    target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
+    target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
+    target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
+    target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
+    target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
+    target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
+    target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
+    target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
+    target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
+    target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
+    target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
+    target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
+    target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
+    target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
+    target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
+    target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
+}
+
+static const StructEntry struct_termios_def = {
+    .convert = { host_to_target_termios, target_to_host_termios },
+    .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
+    .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
+};
+
+static bitmask_transtbl mmap_flags_tbl[] = {
+	{ TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED },
+	{ TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE },
+	{ TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED },
+	{ TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS },
+	{ TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN },
+	{ TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE },
+	{ TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE },
+	{ TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED },
+	{ 0, 0, 0, 0 }
+};
+
+static bitmask_transtbl fcntl_flags_tbl[] = {
+	{ TARGET_O_ACCMODE,   TARGET_O_WRONLY,    O_ACCMODE,   O_WRONLY,    },
+	{ TARGET_O_ACCMODE,   TARGET_O_RDWR,      O_ACCMODE,   O_RDWR,      },
+	{ TARGET_O_CREAT,     TARGET_O_CREAT,     O_CREAT,     O_CREAT,     },
+	{ TARGET_O_EXCL,      TARGET_O_EXCL,      O_EXCL,      O_EXCL,      },
+	{ TARGET_O_NOCTTY,    TARGET_O_NOCTTY,    O_NOCTTY,    O_NOCTTY,    },
+	{ TARGET_O_TRUNC,     TARGET_O_TRUNC,     O_TRUNC,     O_TRUNC,     },
+	{ TARGET_O_APPEND,    TARGET_O_APPEND,    O_APPEND,    O_APPEND,    },
+	{ TARGET_O_NONBLOCK,  TARGET_O_NONBLOCK,  O_NONBLOCK,  O_NONBLOCK,  },
+	{ TARGET_O_SYNC,      TARGET_O_SYNC,      O_SYNC,      O_SYNC,      },
+	{ TARGET_FASYNC,      TARGET_FASYNC,      FASYNC,      FASYNC,      },
+	{ TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, },
+	{ TARGET_O_NOFOLLOW,  TARGET_O_NOFOLLOW,  O_NOFOLLOW,  O_NOFOLLOW,  },
+	{ TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, },
+#if defined(O_DIRECT)
+	{ TARGET_O_DIRECT,    TARGET_O_DIRECT,    O_DIRECT,    O_DIRECT,    },
+#endif
+	{ 0, 0, 0, 0 }
+};
+
+#if defined(TARGET_I386)
+
+/* NOTE: there is really one LDT for all the threads */
+static uint8_t *ldt_table;
+
+static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount)
+{
+    int size;
+    void *p;
+
+    if (!ldt_table)
+        return 0;
+    size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE;
+    if (size > bytecount)
+        size = bytecount;
+    p = lock_user(VERIFY_WRITE, ptr, size, 0);
+    if (!p)
+        return -TARGET_EFAULT;
+    /* ??? Should this by byteswapped?  */
+    memcpy(p, ldt_table, size);
+    unlock_user(p, ptr, size);
+    return size;
+}
+
+/* XXX: add locking support */
+static abi_long write_ldt(CPUX86State *env,
+                          abi_ulong ptr, unsigned long bytecount, int oldmode)
+{
+    struct target_modify_ldt_ldt_s ldt_info;
+    struct target_modify_ldt_ldt_s *target_ldt_info;
+    int seg_32bit, contents, read_exec_only, limit_in_pages;
+    int seg_not_present, useable, lm;
+    uint32_t *lp, entry_1, entry_2;
+
+    if (bytecount != sizeof(ldt_info))
+        return -TARGET_EINVAL;
+    if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1))
+        return -TARGET_EFAULT;
+    ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
+    ldt_info.base_addr = tswapl(target_ldt_info->base_addr);
+    ldt_info.limit = tswap32(target_ldt_info->limit);
+    ldt_info.flags = tswap32(target_ldt_info->flags);
+    unlock_user_struct(target_ldt_info, ptr, 0);
+
+    if (ldt_info.entry_number >= TARGET_LDT_ENTRIES)
+        return -TARGET_EINVAL;
+    seg_32bit = ldt_info.flags & 1;
+    contents = (ldt_info.flags >> 1) & 3;
+    read_exec_only = (ldt_info.flags >> 3) & 1;
+    limit_in_pages = (ldt_info.flags >> 4) & 1;
+    seg_not_present = (ldt_info.flags >> 5) & 1;
+    useable = (ldt_info.flags >> 6) & 1;
+#ifdef TARGET_ABI32
+    lm = 0;
+#else
+    lm = (ldt_info.flags >> 7) & 1;
+#endif
+    if (contents == 3) {
+        if (oldmode)
+            return -TARGET_EINVAL;
+        if (seg_not_present == 0)
+            return -TARGET_EINVAL;
+    }
+    /* allocate the LDT */
+    if (!ldt_table) {
+        env->ldt.base = target_mmap(0,
+                                    TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE,
+                                    PROT_READ|PROT_WRITE,
+                                    MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
+        if (env->ldt.base == -1)
+            return -TARGET_ENOMEM;
+        memset(g2h(env->ldt.base), 0,
+               TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE);
+        env->ldt.limit = 0xffff;
+        ldt_table = g2h(env->ldt.base);
+    }
+
+    /* NOTE: same code as Linux kernel */
+    /* Allow LDTs to be cleared by the user. */
+    if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
+        if (oldmode ||
+            (contents == 0		&&
+             read_exec_only == 1	&&
+             seg_32bit == 0		&&
+             limit_in_pages == 0	&&
+             seg_not_present == 1	&&
+             useable == 0 )) {
+            entry_1 = 0;
+            entry_2 = 0;
+            goto install;
+        }
+    }
+
+    entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
+        (ldt_info.limit & 0x0ffff);
+    entry_2 = (ldt_info.base_addr & 0xff000000) |
+        ((ldt_info.base_addr & 0x00ff0000) >> 16) |
+        (ldt_info.limit & 0xf0000) |
+        ((read_exec_only ^ 1) << 9) |
+        (contents << 10) |
+        ((seg_not_present ^ 1) << 15) |
+        (seg_32bit << 22) |
+        (limit_in_pages << 23) |
+        (lm << 21) |
+        0x7000;
+    if (!oldmode)
+        entry_2 |= (useable << 20);
+
+    /* Install the new entry ...  */
+install:
+    lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3));
+    lp[0] = tswap32(entry_1);
+    lp[1] = tswap32(entry_2);
+    return 0;
+}
+
+/* specific and weird i386 syscalls */
+static abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr,
+                              unsigned long bytecount)
+{
+    abi_long ret;
+
+    switch (func) {
+    case 0:
+        ret = read_ldt(ptr, bytecount);
+        break;
+    case 1:
+        ret = write_ldt(env, ptr, bytecount, 1);
+        break;
+    case 0x11:
+        ret = write_ldt(env, ptr, bytecount, 0);
+        break;
+    default:
+        ret = -TARGET_ENOSYS;
+        break;
+    }
+    return ret;
+}
+
+#if defined(TARGET_I386) && defined(TARGET_ABI32)
+static abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr)
+{
+    uint64_t *gdt_table = g2h(env->gdt.base);
+    struct target_modify_ldt_ldt_s ldt_info;
+    struct target_modify_ldt_ldt_s *target_ldt_info;
+    int seg_32bit, contents, read_exec_only, limit_in_pages;
+    int seg_not_present, useable, lm;
+    uint32_t *lp, entry_1, entry_2;
+    int i;
+
+    lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
+    if (!target_ldt_info)
+        return -TARGET_EFAULT;
+    ldt_info.entry_number = tswap32(target_ldt_info->entry_number);
+    ldt_info.base_addr = tswapl(target_ldt_info->base_addr);
+    ldt_info.limit = tswap32(target_ldt_info->limit);
+    ldt_info.flags = tswap32(target_ldt_info->flags);
+    if (ldt_info.entry_number == -1) {
+        for (i=TARGET_GDT_ENTRY_TLS_MIN; i<=TARGET_GDT_ENTRY_TLS_MAX; i++) {
+            if (gdt_table[i] == 0) {
+                ldt_info.entry_number = i;
+                target_ldt_info->entry_number = tswap32(i);
+                break;
+            }
+        }
+    }
+    unlock_user_struct(target_ldt_info, ptr, 1);
+
+    if (ldt_info.entry_number < TARGET_GDT_ENTRY_TLS_MIN || 
+        ldt_info.entry_number > TARGET_GDT_ENTRY_TLS_MAX)
+           return -TARGET_EINVAL;
+    seg_32bit = ldt_info.flags & 1;
+    contents = (ldt_info.flags >> 1) & 3;
+    read_exec_only = (ldt_info.flags >> 3) & 1;
+    limit_in_pages = (ldt_info.flags >> 4) & 1;
+    seg_not_present = (ldt_info.flags >> 5) & 1;
+    useable = (ldt_info.flags >> 6) & 1;
+#ifdef TARGET_ABI32
+    lm = 0;
+#else
+    lm = (ldt_info.flags >> 7) & 1;
+#endif
+
+    if (contents == 3) {
+        if (seg_not_present == 0)
+            return -TARGET_EINVAL;
+    }
+
+    /* NOTE: same code as Linux kernel */
+    /* Allow LDTs to be cleared by the user. */
+    if (ldt_info.base_addr == 0 && ldt_info.limit == 0) {
+        if ((contents == 0             &&
+             read_exec_only == 1       &&
+             seg_32bit == 0            &&
+             limit_in_pages == 0       &&
+             seg_not_present == 1      &&
+             useable == 0 )) {
+            entry_1 = 0;
+            entry_2 = 0;
+            goto install;
+        }
+    }
+
+    entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) |
+        (ldt_info.limit & 0x0ffff);
+    entry_2 = (ldt_info.base_addr & 0xff000000) |
+        ((ldt_info.base_addr & 0x00ff0000) >> 16) |
+        (ldt_info.limit & 0xf0000) |
+        ((read_exec_only ^ 1) << 9) |
+        (contents << 10) |
+        ((seg_not_present ^ 1) << 15) |
+        (seg_32bit << 22) |
+        (limit_in_pages << 23) |
+        (useable << 20) |
+        (lm << 21) |
+        0x7000;
+
+    /* Install the new entry ...  */
+install:
+    lp = (uint32_t *)(gdt_table + ldt_info.entry_number);
+    lp[0] = tswap32(entry_1);
+    lp[1] = tswap32(entry_2);
+    return 0;
+}
+
+static abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr)
+{
+    struct target_modify_ldt_ldt_s *target_ldt_info;
+    uint64_t *gdt_table = g2h(env->gdt.base);
+    uint32_t base_addr, limit, flags;
+    int seg_32bit, contents, read_exec_only, limit_in_pages, idx;
+    int seg_not_present, useable, lm;
+    uint32_t *lp, entry_1, entry_2;
+
+    lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1);
+    if (!target_ldt_info)
+        return -TARGET_EFAULT;
+    idx = tswap32(target_ldt_info->entry_number);
+    if (idx < TARGET_GDT_ENTRY_TLS_MIN ||
+        idx > TARGET_GDT_ENTRY_TLS_MAX) {
+        unlock_user_struct(target_ldt_info, ptr, 1);
+        return -TARGET_EINVAL;
+    }
+    lp = (uint32_t *)(gdt_table + idx);
+    entry_1 = tswap32(lp[0]);
+    entry_2 = tswap32(lp[1]);
+    
+    read_exec_only = ((entry_2 >> 9) & 1) ^ 1;
+    contents = (entry_2 >> 10) & 3;
+    seg_not_present = ((entry_2 >> 15) & 1) ^ 1;
+    seg_32bit = (entry_2 >> 22) & 1;
+    limit_in_pages = (entry_2 >> 23) & 1;
+    useable = (entry_2 >> 20) & 1;
+#ifdef TARGET_ABI32
+    lm = 0;
+#else
+    lm = (entry_2 >> 21) & 1;
+#endif
+    flags = (seg_32bit << 0) | (contents << 1) |
+        (read_exec_only << 3) | (limit_in_pages << 4) |
+        (seg_not_present << 5) | (useable << 6) | (lm << 7);
+    limit = (entry_1 & 0xffff) | (entry_2  & 0xf0000);
+    base_addr = (entry_1 >> 16) | 
+        (entry_2 & 0xff000000) | 
+        ((entry_2 & 0xff) << 16);
+    target_ldt_info->base_addr = tswapl(base_addr);
+    target_ldt_info->limit = tswap32(limit);
+    target_ldt_info->flags = tswap32(flags);
+    unlock_user_struct(target_ldt_info, ptr, 1);
+    return 0;
+}
+#endif /* TARGET_I386 && TARGET_ABI32 */
+
+#ifndef TARGET_ABI32
+static abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr)
+{
+    abi_long ret;
+    abi_ulong val;
+    int idx;
+    
+    switch(code) {
+    case TARGET_ARCH_SET_GS:
+    case TARGET_ARCH_SET_FS:
+        if (code == TARGET_ARCH_SET_GS)
+            idx = R_GS;
+        else
+            idx = R_FS;
+        cpu_x86_load_seg(env, idx, 0);
+        env->segs[idx].base = addr;
+        break;
+    case TARGET_ARCH_GET_GS:
+    case TARGET_ARCH_GET_FS:
+        if (code == TARGET_ARCH_GET_GS)
+            idx = R_GS;
+        else
+            idx = R_FS;
+        val = env->segs[idx].base;
+        if (put_user(val, addr, abi_ulong))
+            return -TARGET_EFAULT;
+        break;
+    default:
+        ret = -TARGET_EINVAL;
+        break;
+    }
+    return 0;
+}
+#endif
+
+#endif /* defined(TARGET_I386) */
+
+#if defined(USE_NPTL)
+
+#define NEW_STACK_SIZE PTHREAD_STACK_MIN
+
+static pthread_mutex_t clone_lock = PTHREAD_MUTEX_INITIALIZER;
+typedef struct {
+    CPUState *env;
+    pthread_mutex_t mutex;
+    pthread_cond_t cond;
+    pthread_t thread;
+    uint32_t tid;
+    abi_ulong child_tidptr;
+    abi_ulong parent_tidptr;
+    sigset_t sigmask;
+} new_thread_info;
+
+static void *clone_func(void *arg)
+{
+    new_thread_info *info = arg;
+    CPUState *env;
+
+    env = info->env;
+    thread_env = env;
+    info->tid = gettid();
+    if (info->child_tidptr)
+        put_user_u32(info->tid, info->child_tidptr);
+    if (info->parent_tidptr)
+        put_user_u32(info->tid, info->parent_tidptr);
+    /* Enable signals.  */
+    sigprocmask(SIG_SETMASK, &info->sigmask, NULL);
+    /* Signal to the parent that we're ready.  */
+    pthread_mutex_lock(&info->mutex);
+    pthread_cond_broadcast(&info->cond);
+    pthread_mutex_unlock(&info->mutex);
+    /* Wait until the parent has finshed initializing the tls state.  */
+    pthread_mutex_lock(&clone_lock);
+    pthread_mutex_unlock(&clone_lock);
+    cpu_loop(env);
+    /* never exits */
+    return NULL;
+}
+#else
+/* this stack is the equivalent of the kernel stack associated with a
+   thread/process */
+#define NEW_STACK_SIZE 8192
+
+#ifdef USE_NPTL
+static spinlock_t nptl_lock = SPIN_LOCK_UNLOCKED;
+#endif
+
+static int clone_func(void *arg)
+{
+    CPUState *env = arg;
+#ifdef HAVE_NPTL
+    /* Wait until the parent has finshed initializing the tls state.  */
+    while (!spin_trylock(&nptl_lock))
+        usleep(1);
+    spin_unlock(&nptl_lock);
+#endif
+    cpu_loop(env);
+    /* never exits */
+    return 0;
+}
+#endif
+
+/* do_fork() Must return host values and target errnos (unlike most
+   do_*() functions). */
+static int do_fork(CPUState *env, unsigned int flags, abi_ulong newsp,
+                   abi_ulong parent_tidptr, target_ulong newtls,
+                   abi_ulong child_tidptr)
+{
+    int ret;
+    TaskState *ts;
+    uint8_t *new_stack;
+    CPUState *new_env;
+#if defined(USE_NPTL)
+    unsigned int nptl_flags;
+    sigset_t sigmask;
+#endif
+
+    /* Emulate vfork() with fork() */
+    if (flags & CLONE_VFORK)
+        flags &= ~(CLONE_VFORK | CLONE_VM);
+
+    if (flags & CLONE_VM) {
+#if defined(USE_NPTL)
+        new_thread_info info;
+        pthread_attr_t attr;
+#endif
+        ts = qemu_mallocz(sizeof(TaskState) + NEW_STACK_SIZE);
+        init_task_state(ts);
+        new_stack = ts->stack;
+        /* we create a new CPU instance. */
+        new_env = cpu_copy(env);
+        /* Init regs that differ from the parent.  */
+        cpu_clone_regs(new_env, newsp);
+        new_env->opaque = ts;
+#if defined(USE_NPTL)
+        nptl_flags = flags;
+        flags &= ~CLONE_NPTL_FLAGS2;
+
+        /* TODO: Implement CLONE_CHILD_CLEARTID.  */
+        if (nptl_flags & CLONE_SETTLS)
+            cpu_set_tls (new_env, newtls);
+
+        /* Grab a mutex so that thread setup appears atomic.  */
+        pthread_mutex_lock(&clone_lock);
+
+        memset(&info, 0, sizeof(info));
+        pthread_mutex_init(&info.mutex, NULL);
+        pthread_mutex_lock(&info.mutex);
+        pthread_cond_init(&info.cond, NULL);
+        info.env = new_env;
+        if (nptl_flags & CLONE_CHILD_SETTID)
+            info.child_tidptr = child_tidptr;
+        if (nptl_flags & CLONE_PARENT_SETTID)
+            info.parent_tidptr = parent_tidptr;
+
+        ret = pthread_attr_init(&attr);
+        ret = pthread_attr_setstack(&attr, new_stack, NEW_STACK_SIZE);
+        /* It is not safe to deliver signals until the child has finished
+           initializing, so temporarily block all signals.  */
+        sigfillset(&sigmask);
+        sigprocmask(SIG_BLOCK, &sigmask, &info.sigmask);
+
+        ret = pthread_create(&info.thread, &attr, clone_func, &info);
+
+        sigprocmask(SIG_SETMASK, &info.sigmask, NULL);
+        pthread_attr_destroy(&attr);
+        if (ret == 0) {
+            /* Wait for the child to initialize.  */
+            pthread_cond_wait(&info.cond, &info.mutex);
+            ret = info.tid;
+            if (flags & CLONE_PARENT_SETTID)
+                put_user_u32(ret, parent_tidptr);
+        } else {
+            ret = -1;
+        }
+        pthread_mutex_unlock(&info.mutex);
+        pthread_cond_destroy(&info.cond);
+        pthread_mutex_destroy(&info.mutex);
+        pthread_mutex_unlock(&clone_lock);
+#else
+        if (flags & CLONE_NPTL_FLAGS2)
+            return -EINVAL;
+        /* This is probably going to die very quickly, but do it anyway.  */
+#ifdef USE_NPTL
+        nptl_flags = flags;
+        flags &= ~CLONE_NPTL_FLAGS2;
+
+        if (nptl_flags & CLONE_CHILD_CLEARTID) {
+            ts->child_tidptr = child_tidptr;
+        }
+
+        if (nptl_flags & CLONE_SETTLS)
+            cpu_set_tls (new_env, newtls);
+
+        /* Grab the global cpu lock so that the thread setup appears
+           atomic.  */
+        if (nptl_flags & CLONE_CHILD_SETTID)
+            spin_lock(&nptl_lock);
+
+#else
+        if (flags & CLONE_NPTL_FLAGS2)
+            return -EINVAL;
+#endif
+#ifdef __ia64__
+        ret = __clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
+#else
+	ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env);
+#endif
+#endif
+    } else {
+        /* if no CLONE_VM, we consider it is a fork */
+        if ((flags & ~(CSIGNAL | CLONE_NPTL_FLAGS2)) != 0)
+            return -EINVAL;
+        fork_start();
+        ret = fork();
+        if (ret == 0) {
+            /* Child Process.  */
+            cpu_clone_regs(env, newsp);
+            fork_end(1);
+#if defined(USE_NPTL)
+            /* There is a race condition here.  The parent process could
+               theoretically read the TID in the child process before the child
+               tid is set.  This would require using either ptrace
+               (not implemented) or having *_tidptr to point at a shared memory
+               mapping.  We can't repeat the spinlock hack used above because
+               the child process gets its own copy of the lock.  */
+            if (flags & CLONE_CHILD_SETTID)
+                put_user_u32(gettid(), child_tidptr);
+            if (flags & CLONE_PARENT_SETTID)
+                put_user_u32(gettid(), parent_tidptr);
+            ts = (TaskState *)env->opaque;
+            if (flags & CLONE_SETTLS)
+                cpu_set_tls (env, newtls);
+            /* TODO: Implement CLONE_CHILD_CLEARTID.  */
+#endif
+        } else {
+            fork_end(0);
+        }
+    }
+    return ret;
+}
+
+static abi_long do_fcntl(int fd, int cmd, abi_ulong arg)
+{
+    struct flock fl;
+    struct target_flock *target_fl;
+    struct flock64 fl64;
+    struct target_flock64 *target_fl64;
+    abi_long ret;
+
+    switch(cmd) {
+    case TARGET_F_GETLK:
+        if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1))
+            return -TARGET_EFAULT;
+        fl.l_type = tswap16(target_fl->l_type);
+        fl.l_whence = tswap16(target_fl->l_whence);
+        fl.l_start = tswapl(target_fl->l_start);
+        fl.l_len = tswapl(target_fl->l_len);
+        fl.l_pid = tswapl(target_fl->l_pid);
+        unlock_user_struct(target_fl, arg, 0);
+        ret = get_errno(fcntl(fd, cmd, &fl));
+        if (ret == 0) {
+            if (!lock_user_struct(VERIFY_WRITE, target_fl, arg, 0))
+                return -TARGET_EFAULT;
+            target_fl->l_type = tswap16(fl.l_type);
+            target_fl->l_whence = tswap16(fl.l_whence);
+            target_fl->l_start = tswapl(fl.l_start);
+            target_fl->l_len = tswapl(fl.l_len);
+            target_fl->l_pid = tswapl(fl.l_pid);
+            unlock_user_struct(target_fl, arg, 1);
+        }
+        break;
+
+    case TARGET_F_SETLK:
+    case TARGET_F_SETLKW:
+        if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1))
+            return -TARGET_EFAULT;
+        fl.l_type = tswap16(target_fl->l_type);
+        fl.l_whence = tswap16(target_fl->l_whence);
+        fl.l_start = tswapl(target_fl->l_start);
+        fl.l_len = tswapl(target_fl->l_len);
+        fl.l_pid = tswapl(target_fl->l_pid);
+        unlock_user_struct(target_fl, arg, 0);
+        ret = get_errno(fcntl(fd, cmd, &fl));
+        break;
+
+    case TARGET_F_GETLK64:
+        if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1))
+            return -TARGET_EFAULT;
+        fl64.l_type = tswap16(target_fl64->l_type) >> 1;
+        fl64.l_whence = tswap16(target_fl64->l_whence);
+        fl64.l_start = tswapl(target_fl64->l_start);
+        fl64.l_len = tswapl(target_fl64->l_len);
+        fl64.l_pid = tswap16(target_fl64->l_pid);
+        unlock_user_struct(target_fl64, arg, 0);
+        ret = get_errno(fcntl(fd, cmd >> 1, &fl64));
+        if (ret == 0) {
+            if (!lock_user_struct(VERIFY_WRITE, target_fl64, arg, 0))
+                return -TARGET_EFAULT;
+            target_fl64->l_type = tswap16(fl64.l_type) >> 1;
+            target_fl64->l_whence = tswap16(fl64.l_whence);
+            target_fl64->l_start = tswapl(fl64.l_start);
+            target_fl64->l_len = tswapl(fl64.l_len);
+            target_fl64->l_pid = tswapl(fl64.l_pid);
+            unlock_user_struct(target_fl64, arg, 1);
+        }
+        break;
+    case TARGET_F_SETLK64:
+    case TARGET_F_SETLKW64:
+        if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1))
+            return -TARGET_EFAULT;
+        fl64.l_type = tswap16(target_fl64->l_type) >> 1;
+        fl64.l_whence = tswap16(target_fl64->l_whence);
+        fl64.l_start = tswapl(target_fl64->l_start);
+        fl64.l_len = tswapl(target_fl64->l_len);
+        fl64.l_pid = tswap16(target_fl64->l_pid);
+        unlock_user_struct(target_fl64, arg, 0);
+        ret = get_errno(fcntl(fd, cmd >> 1, &fl64));
+        break;
+
+    case F_GETFL:
+        ret = get_errno(fcntl(fd, cmd, arg));
+        if (ret >= 0) {
+            ret = host_to_target_bitmask(ret, fcntl_flags_tbl);
+        }
+        break;
+
+    case F_SETFL:
+        ret = get_errno(fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl)));
+        break;
+
+    default:
+        ret = get_errno(fcntl(fd, cmd, arg));
+        break;
+    }
+    return ret;
+}
+
+#ifdef USE_UID16
+
+static inline int high2lowuid(int uid)
+{
+    if (uid > 65535)
+        return 65534;
+    else
+        return uid;
+}
+
+static inline int high2lowgid(int gid)
+{
+    if (gid > 65535)
+        return 65534;
+    else
+        return gid;
+}
+
+static inline int low2highuid(int uid)
+{
+    if ((int16_t)uid == -1)
+        return -1;
+    else
+        return uid;
+}
+
+static inline int low2highgid(int gid)
+{
+    if ((int16_t)gid == -1)
+        return -1;
+    else
+        return gid;
+}
+
+#endif /* USE_UID16 */
+
+void syscall_init(void)
+{
+    IOCTLEntry *ie;
+    const argtype *arg_type;
+    int size;
+    int i;
+
+#define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def);
+#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def);
+#include "syscall_types.h"
+#undef STRUCT
+#undef STRUCT_SPECIAL
+
+    /* we patch the ioctl size if necessary. We rely on the fact that
+       no ioctl has all the bits at '1' in the size field */
+    ie = ioctl_entries;
+    while (ie->target_cmd != 0) {
+        if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) ==
+            TARGET_IOC_SIZEMASK) {
+            arg_type = ie->arg_type;
+            if (arg_type[0] != TYPE_PTR) {
+                fprintf(stderr, "cannot patch size for ioctl 0x%x\n",
+                        ie->target_cmd);
+                exit(1);
+            }
+            arg_type++;
+            size = thunk_type_size(arg_type, 0);
+            ie->target_cmd = (ie->target_cmd &
+                              ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) |
+                (size << TARGET_IOC_SIZESHIFT);
+        }
+
+        /* Build target_to_host_errno_table[] table from
+         * host_to_target_errno_table[]. */
+        for (i=0; i < ERRNO_TABLE_SIZE; i++)
+                target_to_host_errno_table[host_to_target_errno_table[i]] = i;
+
+        /* automatic consistency check if same arch */
+#if (defined(__i386__) && defined(TARGET_I386) && defined(TARGET_ABI32)) || \
+    (defined(__x86_64__) && defined(TARGET_X86_64))
+        if (unlikely(ie->target_cmd != ie->host_cmd)) {
+            fprintf(stderr, "ERROR: ioctl(%s): target=0x%x host=0x%x\n",
+                    ie->name, ie->target_cmd, ie->host_cmd);
+        }
+#endif
+        ie++;
+    }
+}
+
+#if TARGET_ABI_BITS == 32
+static inline uint64_t target_offset64(uint32_t word0, uint32_t word1)
+{
+#ifdef TARGET_WORDS_BIGENDIAN
+    return ((uint64_t)word0 << 32) | word1;
+#else
+    return ((uint64_t)word1 << 32) | word0;
+#endif
+}
+#else /* TARGET_ABI_BITS == 32 */
+static inline uint64_t target_offset64(uint64_t word0, uint64_t word1)
+{
+    return word0;
+}
+#endif /* TARGET_ABI_BITS != 32 */
+
+#ifdef TARGET_NR_truncate64
+static inline abi_long target_truncate64(void *cpu_env, const char *arg1,
+                                         abi_long arg2,
+                                         abi_long arg3,
+                                         abi_long arg4)
+{
+#ifdef TARGET_ARM
+    if (((CPUARMState *)cpu_env)->eabi)
+      {
+        arg2 = arg3;
+        arg3 = arg4;
+      }
+#endif
+    return get_errno(truncate64(arg1, target_offset64(arg2, arg3)));
+}
+#endif
+
+#ifdef TARGET_NR_ftruncate64
+static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1,
+                                          abi_long arg2,
+                                          abi_long arg3,
+                                          abi_long arg4)
+{
+#ifdef TARGET_ARM
+    if (((CPUARMState *)cpu_env)->eabi)
+      {
+        arg2 = arg3;
+        arg3 = arg4;
+      }
+#endif
+    return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3)));
+}
+#endif
+
+static inline abi_long target_to_host_timespec(struct timespec *host_ts,
+                                               abi_ulong target_addr)
+{
+    struct target_timespec *target_ts;
+
+    if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1))
+        return -TARGET_EFAULT;
+    host_ts->tv_sec = tswapl(target_ts->tv_sec);
+    host_ts->tv_nsec = tswapl(target_ts->tv_nsec);
+    unlock_user_struct(target_ts, target_addr, 0);
+    return 0;
+}
+
+static inline abi_long host_to_target_timespec(abi_ulong target_addr,
+                                               struct timespec *host_ts)
+{
+    struct target_timespec *target_ts;
+
+    if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0))
+        return -TARGET_EFAULT;
+    target_ts->tv_sec = tswapl(host_ts->tv_sec);
+    target_ts->tv_nsec = tswapl(host_ts->tv_nsec);
+    unlock_user_struct(target_ts, target_addr, 1);
+    return 0;
+}
+
+#ifdef TARGET_NR_stat64
+static inline abi_long host_to_target_stat64(void *cpu_env,
+                                             abi_ulong target_addr,
+                                             struct stat *host_st)
+{
+#ifdef TARGET_ARM
+    if (((CPUARMState *)cpu_env)->eabi) {
+        struct target_eabi_stat64 *target_st;
+
+        if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
+            return -TARGET_EFAULT;
+        memset(target_st, 0, sizeof(struct target_eabi_stat64));
+        __put_user(host_st->st_dev, &target_st->st_dev);
+        __put_user(host_st->st_ino, &target_st->st_ino);
+#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
+        __put_user(host_st->st_ino, &target_st->__st_ino);
+#endif
+        __put_user(host_st->st_mode, &target_st->st_mode);
+        __put_user(host_st->st_nlink, &target_st->st_nlink);
+        __put_user(host_st->st_uid, &target_st->st_uid);
+        __put_user(host_st->st_gid, &target_st->st_gid);
+        __put_user(host_st->st_rdev, &target_st->st_rdev);
+        __put_user(host_st->st_size, &target_st->st_size);
+        __put_user(host_st->st_blksize, &target_st->st_blksize);
+        __put_user(host_st->st_blocks, &target_st->st_blocks);
+        __put_user(host_st->st_atime, &target_st->target_st_atime);
+        __put_user(host_st->st_mtime, &target_st->target_st_mtime);
+        __put_user(host_st->st_ctime, &target_st->target_st_ctime);
+        unlock_user_struct(target_st, target_addr, 1);
+    } else
+#endif
+    {
+        struct target_stat64 *target_st;
+
+        if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0))
+            return -TARGET_EFAULT;
+        memset(target_st, 0, sizeof(struct target_stat64));
+        __put_user(host_st->st_dev, &target_st->st_dev);
+        __put_user(host_st->st_ino, &target_st->st_ino);
+#ifdef TARGET_STAT64_HAS_BROKEN_ST_INO
+        __put_user(host_st->st_ino, &target_st->__st_ino);
+#endif
+        __put_user(host_st->st_mode, &target_st->st_mode);
+        __put_user(host_st->st_nlink, &target_st->st_nlink);
+        __put_user(host_st->st_uid, &target_st->st_uid);
+        __put_user(host_st->st_gid, &target_st->st_gid);
+        __put_user(host_st->st_rdev, &target_st->st_rdev);
+        /* XXX: better use of kernel struct */
+        __put_user(host_st->st_size, &target_st->st_size);
+        __put_user(host_st->st_blksize, &target_st->st_blksize);
+        __put_user(host_st->st_blocks, &target_st->st_blocks);
+        __put_user(host_st->st_atime, &target_st->target_st_atime);
+        __put_user(host_st->st_mtime, &target_st->target_st_mtime);
+        __put_user(host_st->st_ctime, &target_st->target_st_ctime);
+        unlock_user_struct(target_st, target_addr, 1);
+    }
+
+    return 0;
+}
+#endif
+
+#if defined(USE_NPTL)
+/* ??? Using host futex calls even when target atomic operations
+   are not really atomic probably breaks things.  However implementing
+   futexes locally would make futexes shared between multiple processes
+   tricky.  However they're probably useless because guest atomic
+   operations won't work either.  */
+static int do_futex(target_ulong uaddr, int op, int val, target_ulong timeout,
+                    target_ulong uaddr2, int val3)
+{
+    struct timespec ts, *pts;
+
+    /* ??? We assume FUTEX_* constants are the same on both host
+       and target.  */
+    switch (op) {
+    case FUTEX_WAIT:
+        if (timeout) {
+            pts = &ts;
+            target_to_host_timespec(pts, timeout);
+        } else {
+            pts = NULL;
+        }
+        return get_errno(sys_futex(g2h(uaddr), FUTEX_WAIT, tswap32(val),
+                         pts, NULL, 0));
+    case FUTEX_WAKE:
+        return get_errno(sys_futex(g2h(uaddr), FUTEX_WAKE, val, NULL, NULL, 0));
+    case FUTEX_FD:
+        return get_errno(sys_futex(g2h(uaddr), FUTEX_FD, val, NULL, NULL, 0));
+    case FUTEX_REQUEUE:
+        return get_errno(sys_futex(g2h(uaddr), FUTEX_REQUEUE, val,
+                         NULL, g2h(uaddr2), 0));
+    case FUTEX_CMP_REQUEUE:
+        return get_errno(sys_futex(g2h(uaddr), FUTEX_CMP_REQUEUE, val,
+                         NULL, g2h(uaddr2), tswap32(val3)));
+    default:
+        return -TARGET_ENOSYS;
+    }
+}
+#endif
+
+int get_osversion(void)
+{
+    static int osversion;
+    struct new_utsname buf;
+    const char *s;
+    int i, n, tmp;
+    if (osversion)
+        return osversion;
+    if (qemu_uname_release && *qemu_uname_release) {
+        s = qemu_uname_release;
+    } else {
+        if (sys_uname(&buf))
+            return 0;
+        s = buf.release;
+    }
+    tmp = 0;
+    for (i = 0; i < 3; i++) {
+        n = 0;
+        while (*s >= '0' && *s <= '9') {
+            n *= 10;
+            n += *s - '0';
+            s++;
+        }
+        tmp = (tmp << 8) + n;
+        if (*s == '.')
+            s++;
+    }
+    osversion = tmp;
+    return osversion;
+}
+
+/* do_syscall() should always have a single exit point at the end so
+   that actions, such as logging of syscall results, can be performed.
+   All errnos that do_syscall() returns must be -TARGET_<errcode>. */
+abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
+                    abi_long arg2, abi_long arg3, abi_long arg4,
+                    abi_long arg5, abi_long arg6)
+{
+    abi_long ret;
+    struct stat st;
+    struct statfs stfs;
+    void *p;
+
+#ifdef DEBUG
+    gemu_log("syscall %d", num);
+#endif
+    if(do_strace)
+        print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6);
+
+    switch(num) {
+    case TARGET_NR_exit:
+#ifdef HAVE_GPROF
+        _mcleanup();
+#endif
+        gdb_exit(cpu_env, arg1);
+        /* XXX: should free thread stack and CPU env */
+        sys_exit(arg1);
+        ret = 0; /* avoid warning */
+        break;
+    case TARGET_NR_read:
+        if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
+            goto efault;
+        ret = get_errno(read(arg1, p, arg3));
+        unlock_user(p, arg2, ret);
+        break;
+    case TARGET_NR_write:
+        if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
+            goto efault;
+        ret = get_errno(write(arg1, p, arg3));
+        unlock_user(p, arg2, 0);
+        break;
+    case TARGET_NR_open:
+        if (!(p = lock_user_string(arg1)))
+            goto efault;
+        ret = get_errno(open(path(p),
+                             target_to_host_bitmask(arg2, fcntl_flags_tbl),
+                             arg3));
+        unlock_user(p, arg1, 0);
+        break;
+#if defined(TARGET_NR_openat) && defined(__NR_openat)
+    case TARGET_NR_openat:
+        if (!(p = lock_user_string(arg2)))
+            goto efault;
+        ret = get_errno(sys_openat(arg1,
+                                   path(p),
+                                   target_to_host_bitmask(arg3, fcntl_flags_tbl),
+                                   arg4));
+        unlock_user(p, arg2, 0);
+        break;
+#endif
+    case TARGET_NR_close:
+        ret = get_errno(close(arg1));
+        break;
+    case TARGET_NR_brk:
+        ret = do_brk(arg1);
+        break;
+    case TARGET_NR_fork:
+        ret = get_errno(do_fork(cpu_env, SIGCHLD, 0, 0, 0, 0));
+        break;
+#ifdef TARGET_NR_waitpid
+    case TARGET_NR_waitpid:
+        {
+            int status;
+            ret = get_errno(waitpid(arg1, &status, arg3));
+            if (!is_error(ret) && arg2
+                && put_user_s32(status, arg2))
+                goto efault;
+        }
+        break;
+#endif
+#ifdef TARGET_NR_waitid
+    case TARGET_NR_waitid:
+        {
+            siginfo_t info;
+            info.si_pid = 0;
+            ret = get_errno(waitid(arg1, arg2, &info, arg4));
+            if (!is_error(ret) && arg3 && info.si_pid != 0) {
+                if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_siginfo_t), 0)))
+                    goto efault;
+                host_to_target_siginfo(p, &info);
+                unlock_user(p, arg3, sizeof(target_siginfo_t));
+            }
+        }
+        break;
+#endif
+#ifdef TARGET_NR_creat /* not on alpha */
+    case TARGET_NR_creat:
+        if (!(p = lock_user_string(arg1)))
+            goto efault;
+        ret = get_errno(creat(p, arg2));
+        unlock_user(p, arg1, 0);
+        break;
+#endif
+    case TARGET_NR_link:
+        {
+            void * p2;
+            p = lock_user_string(arg1);
+            p2 = lock_user_string(arg2);
+            if (!p || !p2)
+                ret = -TARGET_EFAULT;
+            else
+                ret = get_errno(link(p, p2));
+            unlock_user(p2, arg2, 0);
+            unlock_user(p, arg1, 0);
+        }
+        break;
+#if defined(TARGET_NR_linkat) && defined(__NR_linkat)
+    case TARGET_NR_linkat:
+        {
+            void * p2 = NULL;
+            if (!arg2 || !arg4)
+                goto efault;
+            p  = lock_user_string(arg2);
+            p2 = lock_user_string(arg4);
+            if (!p || !p2)
+                ret = -TARGET_EFAULT;
+            else
+                ret = get_errno(sys_linkat(arg1, p, arg3, p2, arg5));
+            unlock_user(p, arg2, 0);
+            unlock_user(p2, arg4, 0);
+        }
+        break;
+#endif
+    case TARGET_NR_unlink:
+        if (!(p = lock_user_string(arg1)))
+            goto efault;
+        ret = get_errno(unlink(p));
+        unlock_user(p, arg1, 0);
+        break;
+#if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat)
+    case TARGET_NR_unlinkat:
+        if (!(p = lock_user_string(arg2)))
+            goto efault;
+        ret = get_errno(sys_unlinkat(arg1, p, arg3));
+        unlock_user(p, arg2, 0);
+        break;
+#endif
+    case TARGET_NR_execve:
+        {
+            char **argp, **envp;
+            int argc, envc;
+            abi_ulong gp;
+            abi_ulong guest_argp;
+            abi_ulong guest_envp;
+            abi_ulong addr;
+            char **q;
+
+            argc = 0;
+            guest_argp = arg2;
+            for (gp = guest_argp; gp; gp += sizeof(abi_ulong)) {
+                if (get_user_ual(addr, gp))
+                    goto efault;
+                if (!addr)
+                    break;
+                argc++;
+            }
+            envc = 0;
+            guest_envp = arg3;
+            for (gp = guest_envp; gp; gp += sizeof(abi_ulong)) {
+                if (get_user_ual(addr, gp))
+                    goto efault;
+                if (!addr)
+                    break;
+                envc++;
+            }
+
+            argp = alloca((argc + 1) * sizeof(void *));
+            envp = alloca((envc + 1) * sizeof(void *));
+
+            for (gp = guest_argp, q = argp; gp;
+                  gp += sizeof(abi_ulong), q++) {
+                if (get_user_ual(addr, gp))
+                    goto execve_efault;
+                if (!addr)
+                    break;
+                if (!(*q = lock_user_string(addr)))
+                    goto execve_efault;
+            }
+            *q = NULL;
+
+            for (gp = guest_envp, q = envp; gp;
+                  gp += sizeof(abi_ulong), q++) {
+                if (get_user_ual(addr, gp))
+                    goto execve_efault;
+                if (!addr)
+                    break;
+                if (!(*q = lock_user_string(addr)))
+                    goto execve_efault;
+            }
+            *q = NULL;
+
+            if (!(p = lock_user_string(arg1)))
+                goto execve_efault;
+            ret = get_errno(execve(p, argp, envp));
+            unlock_user(p, arg1, 0);
+
+            goto execve_end;
+
+        execve_efault:
+            ret = -TARGET_EFAULT;
+
+        execve_end:
+            for (gp = guest_argp, q = argp; *q;
+                  gp += sizeof(abi_ulong), q++) {
+                if (get_user_ual(addr, gp)
+                    || !addr)
+                    break;
+                unlock_user(*q, addr, 0);
+            }
+            for (gp = guest_envp, q = envp; *q;
+                  gp += sizeof(abi_ulong), q++) {
+                if (get_user_ual(addr, gp)
+                    || !addr)
+                    break;
+                unlock_user(*q, addr, 0);
+            }
+        }
+        break;
+    case TARGET_NR_chdir:
+        if (!(p = lock_user_string(arg1)))
+            goto efault;
+        ret = get_errno(chdir(p));
+        unlock_user(p, arg1, 0);
+        break;
+#ifdef TARGET_NR_time
+    case TARGET_NR_time:
+        {
+            time_t host_time;
+            ret = get_errno(time(&host_time));
+            if (!is_error(ret)
+                && arg1
+                && put_user_sal(host_time, arg1))
+                goto efault;
+        }
+        break;
+#endif
+    case TARGET_NR_mknod:
+        if (!(p = lock_user_string(arg1)))
+            goto efault;
+        ret = get_errno(mknod(p, arg2, arg3));
+        unlock_user(p, arg1, 0);
+        break;
+#if defined(TARGET_NR_mknodat) && defined(__NR_mknodat)
+    case TARGET_NR_mknodat:
+        if (!(p = lock_user_string(arg2)))
+            goto efault;
+        ret = get_errno(sys_mknodat(arg1, p, arg3, arg4));
+        unlock_user(p, arg2, 0);
+        break;
+#endif
+    case TARGET_NR_chmod:
+        if (!(p = lock_user_string(arg1)))
+            goto efault;
+        ret = get_errno(chmod(p, arg2));
+        unlock_user(p, arg1, 0);
+        break;
+#ifdef TARGET_NR_break
+    case TARGET_NR_break:
+        goto unimplemented;
+#endif
+#ifdef TARGET_NR_oldstat
+    case TARGET_NR_oldstat:
+        goto unimplemented;
+#endif
+    case TARGET_NR_lseek:
+        ret = get_errno(lseek(arg1, arg2, arg3));
+        break;
+#ifdef TARGET_NR_getxpid
+    case TARGET_NR_getxpid:
+#else
+    case TARGET_NR_getpid:
+#endif
+        ret = get_errno(getpid());
+        break;
+    case TARGET_NR_mount:
+		{
+			/* need to look at the data field */
+			void *p2, *p3;
+			p = lock_user_string(arg1);
+			p2 = lock_user_string(arg2);
+			p3 = lock_user_string(arg3);
+                        if (!p || !p2 || !p3)
+                            ret = -TARGET_EFAULT;
+                        else
+                            /* FIXME - arg5 should be locked, but it isn't clear how to
+                             * do that since it's not guaranteed to be a NULL-terminated
+                             * string.
+                             */
+                            ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, g2h(arg5)));
+                        unlock_user(p, arg1, 0);
+                        unlock_user(p2, arg2, 0);
+                        unlock_user(p3, arg3, 0);
+			break;
+		}
+#ifdef TARGET_NR_umount
+    case TARGET_NR_umount:
+        if (!(p = lock_user_string(arg1)))
+            goto efault;
+        ret = get_errno(umount(p));
+        unlock_user(p, arg1, 0);
+        break;
+#endif
+#ifdef TARGET_NR_stime /* not on alpha */
+    case TARGET_NR_stime:
+        {
+            time_t host_time;
+            if (get_user_sal(host_time, arg1))
+                goto efault;
+            ret = get_errno(stime(&host_time));
+        }
+        break;
+#endif
+    case TARGET_NR_ptrace:
+        if (gdb_wrapper) {
+            /* Pretend something else is attached to the target process.  */
+            ret = -EPERM;
+            break;
+        }
+        goto unimplemented;
+#ifdef TARGET_NR_alarm /* not on alpha */
+    case TARGET_NR_alarm:
+        ret = alarm(arg1);
+        break;
+#endif
+#ifdef TARGET_NR_oldfstat
+    case TARGET_NR_oldfstat:
+        goto unimplemented;
+#endif
+#ifdef TARGET_NR_pause /* not on alpha */
+    case TARGET_NR_pause:
+        ret = get_errno(pause());
+        break;
+#endif
+#ifdef TARGET_NR_utime
+    case TARGET_NR_utime:
+        {
+            struct utimbuf tbuf, *host_tbuf;
+            struct target_utimbuf *target_tbuf;
+            if (arg2) {
+                if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1))
+                    goto efault;
+                tbuf.actime = tswapl(target_tbuf->actime);
+                tbuf.modtime = tswapl(target_tbuf->modtime);
+                unlock_user_struct(target_tbuf, arg2, 0);
+                host_tbuf = &tbuf;
+            } else {
+                host_tbuf = NULL;
+            }
+            if (!(p = lock_user_string(arg1)))
+                goto efault;
+            ret = get_errno(utime(p, host_tbuf));
+            unlock_user(p, arg1, 0);
+        }
+        break;
+#endif
+    case TARGET_NR_utimes:
+        {
+            struct timeval *tvp, tv[2];
+            if (arg2) {
+                if (copy_from_user_timeval(&tv[0], arg2)
+                    || copy_from_user_timeval(&tv[1],
+                                              arg2 + sizeof(struct target_timeval)))
+                    goto efault;
+                tvp = tv;
+            } else {
+                tvp = NULL;
+            }
+            if (!(p = lock_user_string(arg1)))
+                goto efault;
+            ret = get_errno(utimes(p, tvp));
+            unlock_user(p, arg1, 0);
+        }
+        break;
+#if defined(TARGET_NR_futimesat) && defined(__NR_futimesat)
+    case TARGET_NR_futimesat:
+        {
+            struct timeval *tvp, tv[2];
+            if (arg3) {
+                if (copy_from_user_timeval(&tv[0], arg3)
+                    || copy_from_user_timeval(&tv[1],
+                                              arg3 + sizeof(struct target_timeval)))
+                    goto efault;
+                tvp = tv;
+            } else {
+                tvp = NULL;
+            }
+            if (!(p = lock_user_string(arg2)))
+                goto efault;
+            ret = get_errno(sys_futimesat(arg1, path(p), tvp));
+            unlock_user(p, arg2, 0);
+        }
+        break;
+#endif
+#ifdef TARGET_NR_stty
+    case TARGET_NR_stty:
+        goto unimplemented;
+#endif
+#ifdef TARGET_NR_gtty
+    case TARGET_NR_gtty:
+        goto unimplemented;
+#endif
+    case TARGET_NR_access:
+        if (!(p = lock_user_string(arg1)))
+            goto efault;
+        ret = get_errno(access(p, arg2));
+        unlock_user(p, arg1, 0);
+        break;
+#if defined(TARGET_NR_faccessat) && defined(__NR_faccessat)
+    case TARGET_NR_faccessat:
+        if (!(p = lock_user_string(arg2)))
+            goto efault;
+        ret = get_errno(sys_faccessat(arg1, p, arg3, arg4));
+        unlock_user(p, arg2, 0);
+        break;
+#endif
+#ifdef TARGET_NR_nice /* not on alpha */
+    case TARGET_NR_nice:
+        ret = get_errno(nice(arg1));
+        break;
+#endif
+#ifdef TARGET_NR_ftime
+    case TARGET_NR_ftime:
+        goto unimplemented;
+#endif
+    case TARGET_NR_sync:
+        sync();
+        ret = 0;
+        break;
+    case TARGET_NR_kill:
+        ret = get_errno(kill(arg1, target_to_host_signal(arg2)));
+        break;
+    case TARGET_NR_rename:
+        {
+            void *p2;
+            p = lock_user_string(arg1);
+            p2 = lock_user_string(arg2);
+            if (!p || !p2)
+                ret = -TARGET_EFAULT;
+            else
+                ret = get_errno(rename(p, p2));
+            unlock_user(p2, arg2, 0);
+            unlock_user(p, arg1, 0);
+        }
+        break;
+#if defined(TARGET_NR_renameat) && defined(__NR_renameat)
+    case TARGET_NR_renameat:
+        {
+            void *p2;
+            p  = lock_user_string(arg2);
+            p2 = lock_user_string(arg4);
+            if (!p || !p2)
+                ret = -TARGET_EFAULT;
+            else
+                ret = get_errno(sys_renameat(arg1, p, arg3, p2));
+            unlock_user(p2, arg4, 0);
+            unlock_user(p, arg2, 0);
+        }
+        break;
+#endif
+    case TARGET_NR_mkdir:
+        if (!(p = lock_user_string(arg1)))
+            goto efault;
+        ret = get_errno(mkdir(p, arg2));
+        unlock_user(p, arg1, 0);
+        break;
+#if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat)
+    case TARGET_NR_mkdirat:
+        if (!(p = lock_user_string(arg2)))
+            goto efault;
+        ret = get_errno(sys_mkdirat(arg1, p, arg3));
+        unlock_user(p, arg2, 0);
+        break;
+#endif
+    case TARGET_NR_rmdir:
+        if (!(p = lock_user_string(arg1)))
+            goto efault;
+        ret = get_errno(rmdir(p));
+        unlock_user(p, arg1, 0);
+        break;
+    case TARGET_NR_dup:
+        ret = get_errno(dup(arg1));
+        break;
+    case TARGET_NR_pipe:
+        {
+            int host_pipe[2];
+            ret = get_errno(pipe(host_pipe));
+            if (!is_error(ret)) {
+#if defined(TARGET_MIPS)
+                CPUMIPSState *env = (CPUMIPSState*)cpu_env;
+		env->active_tc.gpr[3] = host_pipe[1];
+		ret = host_pipe[0];
+#elif defined(TARGET_SH4)
+		((CPUSH4State*)cpu_env)->gregs[1] = host_pipe[1];
+		ret = host_pipe[0];
+#else
+                if (put_user_s32(host_pipe[0], arg1)
+                    || put_user_s32(host_pipe[1], arg1 + sizeof(host_pipe[0])))
+                    goto efault;
+#endif
+            }
+        }
+        break;
+    case TARGET_NR_times:
+        {
+            struct target_tms *tmsp;
+            struct tms tms;
+            ret = get_errno(times(&tms));
+            if (arg1) {
+                tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0);
+                if (!tmsp)
+                    goto efault;
+                tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime));
+                tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime));
+                tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime));
+                tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime));
+            }
+            if (!is_error(ret))
+                ret = host_to_target_clock_t(ret);
+        }
+        break;
+#ifdef TARGET_NR_prof
+    case TARGET_NR_prof:
+        goto unimplemented;
+#endif
+#ifdef TARGET_NR_signal
+    case TARGET_NR_signal:
+        goto unimplemented;
+#endif
+    case TARGET_NR_acct:
+        if (!(p = lock_user_string(arg1)))
+            goto efault;
+        ret = get_errno(acct(path(p)));
+        unlock_user(p, arg1, 0);
+        break;
+#ifdef TARGET_NR_umount2 /* not on alpha */
+    case TARGET_NR_umount2:
+        if (!(p = lock_user_string(arg1)))
+            goto efault;
+        ret = get_errno(umount2(p, arg2));
+        unlock_user(p, arg1, 0);
+        break;
+#endif
+#ifdef TARGET_NR_lock
+    case TARGET_NR_lock:
+        goto unimplemented;
+#endif
+    case TARGET_NR_ioctl:
+        ret = do_ioctl(arg1, arg2, arg3);
+        break;
+    case TARGET_NR_fcntl:
+        ret = do_fcntl(arg1, arg2, arg3);
+        break;
+#ifdef TARGET_NR_mpx
+    case TARGET_NR_mpx:
+        goto unimplemented;
+#endif
+    case TARGET_NR_setpgid:
+        ret = get_errno(setpgid(arg1, arg2));
+        break;
+#ifdef TARGET_NR_ulimit
+    case TARGET_NR_ulimit:
+        goto unimplemented;
+#endif
+#ifdef TARGET_NR_oldolduname
+    case TARGET_NR_oldolduname:
+        goto unimplemented;
+#endif
+    case TARGET_NR_umask:
+        ret = get_errno(umask(arg1));
+        break;
+    case TARGET_NR_chroot:
+        if (!(p = lock_user_string(arg1)))
+            goto efault;
+        ret = get_errno(chroot(p));
+        unlock_user(p, arg1, 0);
+        break;
+    case TARGET_NR_ustat:
+        goto unimplemented;
+    case TARGET_NR_dup2:
+        ret = get_errno(dup2(arg1, arg2));
+        break;
+#ifdef TARGET_NR_getppid /* not on alpha */
+    case TARGET_NR_getppid:
+        ret = get_errno(getppid());
+        break;
+#endif
+    case TARGET_NR_getpgrp:
+        ret = get_errno(getpgrp());
+        break;
+    case TARGET_NR_setsid:
+        ret = get_errno(setsid());
+        break;
+#ifdef TARGET_NR_sigaction
+    case TARGET_NR_sigaction:
+        {
+#if !defined(TARGET_MIPS)
+            struct target_old_sigaction *old_act;
+            struct target_sigaction act, oact, *pact;
+            if (arg2) {
+                if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
+                    goto efault;
+                act._sa_handler = old_act->_sa_handler;
+                target_siginitset(&act.sa_mask, old_act->sa_mask);
+                act.sa_flags = old_act->sa_flags;
+                act.sa_restorer = old_act->sa_restorer;
+                unlock_user_struct(old_act, arg2, 0);
+                pact = &act;
+            } else {
+                pact = NULL;
+            }
+            ret = get_errno(do_sigaction(arg1, pact, &oact));
+            if (!is_error(ret) && arg3) {
+                if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
+                    goto efault;
+                old_act->_sa_handler = oact._sa_handler;
+                old_act->sa_mask = oact.sa_mask.sig[0];
+                old_act->sa_flags = oact.sa_flags;
+                old_act->sa_restorer = oact.sa_restorer;
+                unlock_user_struct(old_act, arg3, 1);
+            }
+#else
+	    struct target_sigaction act, oact, *pact, *old_act;
+
+	    if (arg2) {
+                if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1))
+                    goto efault;
+		act._sa_handler = old_act->_sa_handler;
+		target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]);
+		act.sa_flags = old_act->sa_flags;
+		unlock_user_struct(old_act, arg2, 0);
+		pact = &act;
+	    } else {
+		pact = NULL;
+	    }
+
+	    ret = get_errno(do_sigaction(arg1, pact, &oact));
+
+	    if (!is_error(ret) && arg3) {
+                if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0))
+                    goto efault;
+		old_act->_sa_handler = oact._sa_handler;
+		old_act->sa_flags = oact.sa_flags;
+		old_act->sa_mask.sig[0] = oact.sa_mask.sig[0];
+		old_act->sa_mask.sig[1] = 0;
+		old_act->sa_mask.sig[2] = 0;
+		old_act->sa_mask.sig[3] = 0;
+		unlock_user_struct(old_act, arg3, 1);
+	    }
+#endif
+        }
+        break;
+#endif
+    case TARGET_NR_rt_sigaction:
+        {
+            struct target_sigaction *act;
+            struct target_sigaction *oact;
+
+            if (arg2) {
+                if (!lock_user_struct(VERIFY_READ, act, arg2, 1))
+                    goto efault;
+            } else
+                act = NULL;
+            if (arg3) {
+                if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) {
+                    ret = -TARGET_EFAULT;
+                    goto rt_sigaction_fail;
+                }
+            } else
+                oact = NULL;
+            ret = get_errno(do_sigaction(arg1, act, oact));
+	rt_sigaction_fail:
+            if (act)
+                unlock_user_struct(act, arg2, 0);
+            if (oact)
+                unlock_user_struct(oact, arg3, 1);
+        }
+        break;
+#ifdef TARGET_NR_sgetmask /* not on alpha */
+    case TARGET_NR_sgetmask:
+        {
+            sigset_t cur_set;
+            abi_ulong target_set;
+            sigprocmask(0, NULL, &cur_set);
+            host_to_target_old_sigset(&target_set, &cur_set);
+            ret = target_set;
+        }
+        break;
+#endif
+#ifdef TARGET_NR_ssetmask /* not on alpha */
+    case TARGET_NR_ssetmask:
+        {
+            sigset_t set, oset, cur_set;
+            abi_ulong target_set = arg1;
+            sigprocmask(0, NULL, &cur_set);
+            target_to_host_old_sigset(&set, &target_set);
+            sigorset(&set, &set, &cur_set);
+            sigprocmask(SIG_SETMASK, &set, &oset);
+            host_to_target_old_sigset(&target_set, &oset);
+            ret = target_set;
+        }
+        break;
+#endif
+#ifdef TARGET_NR_sigprocmask
+    case TARGET_NR_sigprocmask:
+        {
+            int how = arg1;
+            sigset_t set, oldset, *set_ptr;
+
+            if (arg2) {
+                switch(how) {
+                case TARGET_SIG_BLOCK:
+                    how = SIG_BLOCK;
+                    break;
+                case TARGET_SIG_UNBLOCK:
+                    how = SIG_UNBLOCK;
+                    break;
+                case TARGET_SIG_SETMASK:
+                    how = SIG_SETMASK;
+                    break;
+                default:
+                    ret = -TARGET_EINVAL;
+                    goto fail;
+                }
+                if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
+                    goto efault;
+                target_to_host_old_sigset(&set, p);
+                unlock_user(p, arg2, 0);
+                set_ptr = &set;
+            } else {
+                how = 0;
+                set_ptr = NULL;
+            }
+            ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
+            if (!is_error(ret) && arg3) {
+                if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
+                    goto efault;
+                host_to_target_old_sigset(p, &oldset);
+                unlock_user(p, arg3, sizeof(target_sigset_t));
+            }
+        }
+        break;
+#endif
+    case TARGET_NR_rt_sigprocmask:
+        {
+            int how = arg1;
+            sigset_t set, oldset, *set_ptr;
+
+            if (arg2) {
+                switch(how) {
+                case TARGET_SIG_BLOCK:
+                    how = SIG_BLOCK;
+                    break;
+                case TARGET_SIG_UNBLOCK:
+                    how = SIG_UNBLOCK;
+                    break;
+                case TARGET_SIG_SETMASK:
+                    how = SIG_SETMASK;
+                    break;
+                default:
+                    ret = -TARGET_EINVAL;
+                    goto fail;
+                }
+                if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
+                    goto efault;
+                target_to_host_sigset(&set, p);
+                unlock_user(p, arg2, 0);
+                set_ptr = &set;
+            } else {
+                how = 0;
+                set_ptr = NULL;
+            }
+            ret = get_errno(sigprocmask(how, set_ptr, &oldset));
+            if (!is_error(ret) && arg3) {
+                if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
+                    goto efault;
+                host_to_target_sigset(p, &oldset);
+                unlock_user(p, arg3, sizeof(target_sigset_t));
+            }
+        }
+        break;
+#ifdef TARGET_NR_sigpending
+    case TARGET_NR_sigpending:
+        {
+            sigset_t set;
+            ret = get_errno(sigpending(&set));
+            if (!is_error(ret)) {
+                if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
+                    goto efault;
+                host_to_target_old_sigset(p, &set);
+                unlock_user(p, arg1, sizeof(target_sigset_t));
+            }
+        }
+        break;
+#endif
+    case TARGET_NR_rt_sigpending:
+        {
+            sigset_t set;
+            ret = get_errno(sigpending(&set));
+            if (!is_error(ret)) {
+                if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0)))
+                    goto efault;
+                host_to_target_sigset(p, &set);
+                unlock_user(p, arg1, sizeof(target_sigset_t));
+            }
+        }
+        break;
+#ifdef TARGET_NR_sigsuspend
+    case TARGET_NR_sigsuspend:
+        {
+            sigset_t set;
+            if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
+                goto efault;
+            target_to_host_old_sigset(&set, p);
+            unlock_user(p, arg1, 0);
+            ret = get_errno(sigsuspend(&set));
+        }
+        break;
+#endif
+    case TARGET_NR_rt_sigsuspend:
+        {
+            sigset_t set;
+            if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
+                goto efault;
+            target_to_host_sigset(&set, p);
+            unlock_user(p, arg1, 0);
+            ret = get_errno(sigsuspend(&set));
+        }
+        break;
+    case TARGET_NR_rt_sigtimedwait:
+        {
+            sigset_t set;
+            struct timespec uts, *puts;
+            siginfo_t uinfo;
+
+            if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1)))
+                goto efault;
+            target_to_host_sigset(&set, p);
+            unlock_user(p, arg1, 0);
+            if (arg3) {
+                puts = &uts;
+                target_to_host_timespec(puts, arg3);
+            } else {
+                puts = NULL;
+            }
+            ret = get_errno(sigtimedwait(&set, &uinfo, puts));
+            if (!is_error(ret) && arg2) {
+                if (!(p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t), 0)))
+                    goto efault;
+                host_to_target_siginfo(p, &uinfo);
+                unlock_user(p, arg2, sizeof(target_siginfo_t));
+            }
+        }
+        break;
+    case TARGET_NR_rt_sigqueueinfo:
+        {
+            siginfo_t uinfo;
+            if (!(p = lock_user(VERIFY_READ, arg3, sizeof(target_sigset_t), 1)))
+                goto efault;
+            target_to_host_siginfo(&uinfo, p);
+            unlock_user(p, arg1, 0);
+            ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));
+        }
+        break;
+#ifdef TARGET_NR_sigreturn
+    case TARGET_NR_sigreturn:
+        /* NOTE: ret is eax, so not transcoding must be done */
+        ret = do_sigreturn(cpu_env);
+        break;
+#endif
+    case TARGET_NR_rt_sigreturn:
+        /* NOTE: ret is eax, so not transcoding must be done */
+        ret = do_rt_sigreturn(cpu_env);
+        break;
+    case TARGET_NR_sethostname:
+        if (!(p = lock_user_string(arg1)))
+            goto efault;
+        ret = get_errno(sethostname(p, arg2));
+        unlock_user(p, arg1, 0);
+        break;
+    case TARGET_NR_setrlimit:
+        {
+            /* XXX: convert resource ? */
+            int resource = arg1;
+            struct target_rlimit *target_rlim;
+            struct rlimit rlim;
+            if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1))
+                goto efault;
+            rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
+            rlim.rlim_max = tswapl(target_rlim->rlim_max);
+            unlock_user_struct(target_rlim, arg2, 0);
+            ret = get_errno(setrlimit(resource, &rlim));
+        }
+        break;
+    case TARGET_NR_getrlimit:
+        {
+            /* XXX: convert resource ? */
+            int resource = arg1;
+            struct target_rlimit *target_rlim;
+            struct rlimit rlim;
+
+            ret = get_errno(getrlimit(resource, &rlim));
+            if (!is_error(ret)) {
+                if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
+                    goto efault;
+                rlim.rlim_cur = tswapl(target_rlim->rlim_cur);
+                rlim.rlim_max = tswapl(target_rlim->rlim_max);
+                unlock_user_struct(target_rlim, arg2, 1);
+            }
+        }
+        break;
+    case TARGET_NR_getrusage:
+        {
+            struct rusage rusage;
+            ret = get_errno(getrusage(arg1, &rusage));
+            if (!is_error(ret)) {
+                host_to_target_rusage(arg2, &rusage);
+            }
+        }
+        break;
+    case TARGET_NR_gettimeofday:
+        {
+            struct timeval tv;
+            ret = get_errno(gettimeofday(&tv, NULL));
+            if (!is_error(ret)) {
+                if (copy_to_user_timeval(arg1, &tv))
+                    goto efault;
+            }
+        }
+        break;
+    case TARGET_NR_settimeofday:
+        {
+            struct timeval tv;
+            if (copy_from_user_timeval(&tv, arg1))
+                goto efault;
+            ret = get_errno(settimeofday(&tv, NULL));
+        }
+        break;
+#ifdef TARGET_NR_select
+    case TARGET_NR_select:
+        {
+            struct target_sel_arg_struct *sel;
+            abi_ulong inp, outp, exp, tvp;
+            long nsel;
+
+            if (!lock_user_struct(VERIFY_READ, sel, arg1, 1))
+                goto efault;
+            nsel = tswapl(sel->n);
+            inp = tswapl(sel->inp);
+            outp = tswapl(sel->outp);
+            exp = tswapl(sel->exp);
+            tvp = tswapl(sel->tvp);
+            unlock_user_struct(sel, arg1, 0);
+            ret = do_select(nsel, inp, outp, exp, tvp);
+        }
+        break;
+#endif
+    case TARGET_NR_symlink:
+        {
+            void *p2;
+            p = lock_user_string(arg1);
+            p2 = lock_user_string(arg2);
+            if (!p || !p2)
+                ret = -TARGET_EFAULT;
+            else
+                ret = get_errno(symlink(p, p2));
+            unlock_user(p2, arg2, 0);
+            unlock_user(p, arg1, 0);
+        }
+        break;
+#if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat)
+    case TARGET_NR_symlinkat:
+        {
+            void *p2;
+            p  = lock_user_string(arg1);
+            p2 = lock_user_string(arg3);
+            if (!p || !p2)
+                ret = -TARGET_EFAULT;
+            else
+                ret = get_errno(sys_symlinkat(p, arg2, p2));
+            unlock_user(p2, arg3, 0);
+            unlock_user(p, arg1, 0);
+        }
+        break;
+#endif
+#ifdef TARGET_NR_oldlstat
+    case TARGET_NR_oldlstat:
+        goto unimplemented;
+#endif
+    case TARGET_NR_readlink:
+        {
+            void *p2;
+            p = lock_user_string(arg1);
+            p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0);
+            if (!p || !p2)
+                ret = -TARGET_EFAULT;
+            else
+                ret = get_errno(readlink(path(p), p2, arg3));
+            unlock_user(p2, arg2, ret);
+            unlock_user(p, arg1, 0);
+        }
+        break;
+#if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat)
+    case TARGET_NR_readlinkat:
+        {
+            void *p2;
+            p  = lock_user_string(arg2);
+            p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0);
+            if (!p || !p2)
+        	ret = -TARGET_EFAULT;
+            else
+                ret = get_errno(sys_readlinkat(arg1, path(p), p2, arg4));
+            unlock_user(p2, arg3, ret);
+            unlock_user(p, arg2, 0);
+        }
+        break;
+#endif
+#ifdef TARGET_NR_uselib
+    case TARGET_NR_uselib:
+        goto unimplemented;
+#endif
+#ifdef TARGET_NR_swapon
+    case TARGET_NR_swapon:
+        if (!(p = lock_user_string(arg1)))
+            goto efault;
+        ret = get_errno(swapon(p, arg2));
+        unlock_user(p, arg1, 0);
+        break;
+#endif
+    case TARGET_NR_reboot:
+        goto unimplemented;
+#ifdef TARGET_NR_readdir
+    case TARGET_NR_readdir:
+        goto unimplemented;
+#endif
+#ifdef TARGET_NR_mmap
+    case TARGET_NR_mmap:
+#if (defined(TARGET_I386) && defined(TARGET_ABI32)) || defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_CRIS)
+        {
+            abi_ulong *v;
+            abi_ulong v1, v2, v3, v4, v5, v6;
+            if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1)))
+                goto efault;
+            v1 = tswapl(v[0]);
+            v2 = tswapl(v[1]);
+            v3 = tswapl(v[2]);
+            v4 = tswapl(v[3]);
+            v5 = tswapl(v[4]);
+            v6 = tswapl(v[5]);
+            unlock_user(v, arg1, 0);
+            ret = get_errno(target_mmap(v1, v2, v3,
+                                        target_to_host_bitmask(v4, mmap_flags_tbl),
+                                        v5, v6));
+        }
+#else
+        ret = get_errno(target_mmap(arg1, arg2, arg3,
+                                    target_to_host_bitmask(arg4, mmap_flags_tbl),
+                                    arg5,
+                                    arg6));
+#endif
+        break;
+#endif
+#ifdef TARGET_NR_mmap2
+    case TARGET_NR_mmap2:
+#ifndef MMAP_SHIFT
+#define MMAP_SHIFT 12
+#endif
+        ret = get_errno(target_mmap(arg1, arg2, arg3,
+                                    target_to_host_bitmask(arg4, mmap_flags_tbl),
+                                    arg5,
+                                    arg6 << MMAP_SHIFT));
+        break;
+#endif
+    case TARGET_NR_munmap:
+        ret = get_errno(target_munmap(arg1, arg2));
+        break;
+    case TARGET_NR_mprotect:
+        {
+            TaskState *ts = ((CPUState *)cpu_env)->opaque;
+            /* Special hack for libc making the stack executable.  */
+            if ((arg3 & TARGET_PROT_GROWSDOWN)
+                && (arg1 + TARGET_PAGE_SIZE == ts->info->stack_base)) {
+                arg3 &= ~TARGET_PROT_GROWSDOWN;
+                arg1 = ts->info->stack_base - x86_stack_size;
+                arg2 = x86_stack_size;
+            }
+        }
+        ret = get_errno(target_mprotect(arg1, arg2, arg3));
+        break;
+#ifdef TARGET_NR_mremap
+    case TARGET_NR_mremap:
+        ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5));
+        break;
+#endif
+        /* ??? msync/mlock/munlock are broken for softmmu.  */
+#ifdef TARGET_NR_msync
+    case TARGET_NR_msync:
+        ret = get_errno(msync(g2h(arg1), arg2, arg3));
+        break;
+#endif
+#ifdef TARGET_NR_mlock
+    case TARGET_NR_mlock:
+        ret = get_errno(mlock(g2h(arg1), arg2));
+        break;
+#endif
+#ifdef TARGET_NR_munlock
+    case TARGET_NR_munlock:
+        ret = get_errno(munlock(g2h(arg1), arg2));
+        break;
+#endif
+#ifdef TARGET_NR_mlockall
+    case TARGET_NR_mlockall:
+        ret = get_errno(mlockall(arg1));
+        break;
+#endif
+#ifdef TARGET_NR_munlockall
+    case TARGET_NR_munlockall:
+        ret = get_errno(munlockall());
+        break;
+#endif
+    case TARGET_NR_truncate:
+        if (!(p = lock_user_string(arg1)))
+            goto efault;
+        ret = get_errno(truncate(p, arg2));
+        unlock_user(p, arg1, 0);
+        break;
+    case TARGET_NR_ftruncate:
+        ret = get_errno(ftruncate(arg1, arg2));
+        break;
+    case TARGET_NR_fchmod:
+        ret = get_errno(fchmod(arg1, arg2));
+        break;
+#if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat)
+    case TARGET_NR_fchmodat:
+        if (!(p = lock_user_string(arg2)))
+            goto efault;
+        ret = get_errno(sys_fchmodat(arg1, p, arg3, arg4));
+        unlock_user(p, arg2, 0);
+        break;
+#endif
+    case TARGET_NR_getpriority:
+        /* libc does special remapping of the return value of
+         * sys_getpriority() so it's just easiest to call
+         * sys_getpriority() directly rather than through libc. */
+        ret = sys_getpriority(arg1, arg2);
+        break;
+    case TARGET_NR_setpriority:
+        ret = get_errno(setpriority(arg1, arg2, arg3));
+        break;
+#ifdef TARGET_NR_profil
+    case TARGET_NR_profil:
+        goto unimplemented;
+#endif
+    case TARGET_NR_statfs:
+        if (!(p = lock_user_string(arg1)))
+            goto efault;
+        ret = get_errno(statfs(path(p), &stfs));
+        unlock_user(p, arg1, 0);
+    convert_statfs:
+        if (!is_error(ret)) {
+            struct target_statfs *target_stfs;
+
+            if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0))
+                goto efault;
+            __put_user(stfs.f_type, &target_stfs->f_type);
+            __put_user(stfs.f_bsize, &target_stfs->f_bsize);
+            __put_user(stfs.f_blocks, &target_stfs->f_blocks);
+            __put_user(stfs.f_bfree, &target_stfs->f_bfree);
+            __put_user(stfs.f_bavail, &target_stfs->f_bavail);
+            __put_user(stfs.f_files, &target_stfs->f_files);
+            __put_user(stfs.f_ffree, &target_stfs->f_ffree);
+            __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
+            __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
+            __put_user(stfs.f_namelen, &target_stfs->f_namelen);
+            unlock_user_struct(target_stfs, arg2, 1);
+        }
+        break;
+    case TARGET_NR_fstatfs:
+        ret = get_errno(fstatfs(arg1, &stfs));
+        goto convert_statfs;
+#ifdef TARGET_NR_statfs64
+    case TARGET_NR_statfs64:
+        if (!(p = lock_user_string(arg1)))
+            goto efault;
+        ret = get_errno(statfs(path(p), &stfs));
+        unlock_user(p, arg1, 0);
+    convert_statfs64:
+        if (!is_error(ret)) {
+            struct target_statfs64 *target_stfs;
+
+            if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0))
+                goto efault;
+            __put_user(stfs.f_type, &target_stfs->f_type);
+            __put_user(stfs.f_bsize, &target_stfs->f_bsize);
+            __put_user(stfs.f_blocks, &target_stfs->f_blocks);
+            __put_user(stfs.f_bfree, &target_stfs->f_bfree);
+            __put_user(stfs.f_bavail, &target_stfs->f_bavail);
+            __put_user(stfs.f_files, &target_stfs->f_files);
+            __put_user(stfs.f_ffree, &target_stfs->f_ffree);
+            __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]);
+            __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]);
+            __put_user(stfs.f_namelen, &target_stfs->f_namelen);
+            unlock_user_struct(target_stfs, arg3, 1);
+        }
+        break;
+    case TARGET_NR_fstatfs64:
+        ret = get_errno(fstatfs(arg1, &stfs));
+        goto convert_statfs64;
+#endif
+#ifdef TARGET_NR_ioperm
+    case TARGET_NR_ioperm:
+        goto unimplemented;
+#endif
+#ifdef TARGET_NR_socketcall
+    case TARGET_NR_socketcall:
+        ret = do_socketcall(arg1, arg2);
+        break;
+#endif
+#ifdef TARGET_NR_accept
+    case TARGET_NR_accept:
+        ret = do_accept(arg1, arg2, arg3);
+        break;
+#endif
+#ifdef TARGET_NR_bind
+    case TARGET_NR_bind:
+        ret = do_bind(arg1, arg2, arg3);
+        break;
+#endif
+#ifdef TARGET_NR_connect
+    case TARGET_NR_connect:
+        ret = do_connect(arg1, arg2, arg3);
+        break;
+#endif
+#ifdef TARGET_NR_getpeername
+    case TARGET_NR_getpeername:
+        ret = do_getpeername(arg1, arg2, arg3);
+        break;
+#endif
+#ifdef TARGET_NR_getsockname
+    case TARGET_NR_getsockname:
+        ret = do_getsockname(arg1, arg2, arg3);
+        break;
+#endif
+#ifdef TARGET_NR_getsockopt
+    case TARGET_NR_getsockopt:
+        ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5);
+        break;
+#endif
+#ifdef TARGET_NR_listen
+    case TARGET_NR_listen:
+        ret = get_errno(listen(arg1, arg2));
+        break;
+#endif
+#ifdef TARGET_NR_recv
+    case TARGET_NR_recv:
+        ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0);
+        break;
+#endif
+#ifdef TARGET_NR_recvfrom
+    case TARGET_NR_recvfrom:
+        ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6);
+        break;
+#endif
+#ifdef TARGET_NR_recvmsg
+    case TARGET_NR_recvmsg:
+        ret = do_sendrecvmsg(arg1, arg2, arg3, 0);
+        break;
+#endif
+#ifdef TARGET_NR_send
+    case TARGET_NR_send:
+        ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0);
+        break;
+#endif
+#ifdef TARGET_NR_sendmsg
+    case TARGET_NR_sendmsg:
+        ret = do_sendrecvmsg(arg1, arg2, arg3, 1);
+        break;
+#endif
+#ifdef TARGET_NR_sendto
+    case TARGET_NR_sendto:
+        ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6);
+        break;
+#endif
+#ifdef TARGET_NR_shutdown
+    case TARGET_NR_shutdown:
+        ret = get_errno(shutdown(arg1, arg2));
+        break;
+#endif
+#ifdef TARGET_NR_socket
+    case TARGET_NR_socket:
+        ret = do_socket(arg1, arg2, arg3);
+        break;
+#endif
+#ifdef TARGET_NR_socketpair
+    case TARGET_NR_socketpair:
+        ret = do_socketpair(arg1, arg2, arg3, arg4);
+        break;
+#endif
+#ifdef TARGET_NR_setsockopt
+    case TARGET_NR_setsockopt:
+        ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5);
+        break;
+#endif
+
+    case TARGET_NR_syslog:
+        if (!(p = lock_user_string(arg2)))
+            goto efault;
+        ret = get_errno(sys_syslog((int)arg1, p, (int)arg3));
+        unlock_user(p, arg2, 0);
+        break;
+
+    case TARGET_NR_setitimer:
+        {
+            struct itimerval value, ovalue, *pvalue;
+
+            if (arg2) {
+                pvalue = &value;
+                if (copy_from_user_timeval(&pvalue->it_interval, arg2)
+                    || copy_from_user_timeval(&pvalue->it_value,
+                                              arg2 + sizeof(struct target_timeval)))
+                    goto efault;
+            } else {
+                pvalue = NULL;
+            }
+            ret = get_errno(setitimer(arg1, pvalue, &ovalue));
+            if (!is_error(ret) && arg3) {
+                if (copy_to_user_timeval(arg3,
+                                         &ovalue.it_interval)
+                    || copy_to_user_timeval(arg3 + sizeof(struct target_timeval),
+                                            &ovalue.it_value))
+                    goto efault;
+            }
+        }
+        break;
+    case TARGET_NR_getitimer:
+        {
+            struct itimerval value;
+
+            ret = get_errno(getitimer(arg1, &value));
+            if (!is_error(ret) && arg2) {
+                if (copy_to_user_timeval(arg2,
+                                         &value.it_interval)
+                    || copy_to_user_timeval(arg2 + sizeof(struct target_timeval),
+                                            &value.it_value))
+                    goto efault;
+            }
+        }
+        break;
+    case TARGET_NR_stat:
+        if (!(p = lock_user_string(arg1)))
+            goto efault;
+        ret = get_errno(stat(path(p), &st));
+        unlock_user(p, arg1, 0);
+        goto do_stat;
+    case TARGET_NR_lstat:
+        if (!(p = lock_user_string(arg1)))
+            goto efault;
+        ret = get_errno(lstat(path(p), &st));
+        unlock_user(p, arg1, 0);
+        goto do_stat;
+    case TARGET_NR_fstat:
+        {
+            ret = get_errno(fstat(arg1, &st));
+        do_stat:
+            if (!is_error(ret)) {
+                struct target_stat *target_st;
+
+                if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0))
+                    goto efault;
+                __put_user(st.st_dev, &target_st->st_dev);
+                __put_user(st.st_ino, &target_st->st_ino);
+                __put_user(st.st_mode, &target_st->st_mode);
+                __put_user(st.st_uid, &target_st->st_uid);
+                __put_user(st.st_gid, &target_st->st_gid);
+                __put_user(st.st_nlink, &target_st->st_nlink);
+                __put_user(st.st_rdev, &target_st->st_rdev);
+                __put_user(st.st_size, &target_st->st_size);
+                __put_user(st.st_blksize, &target_st->st_blksize);
+                __put_user(st.st_blocks, &target_st->st_blocks);
+                __put_user(st.st_atime, &target_st->target_st_atime);
+                __put_user(st.st_mtime, &target_st->target_st_mtime);
+                __put_user(st.st_ctime, &target_st->target_st_ctime);
+                unlock_user_struct(target_st, arg2, 1);
+            }
+        }
+        break;
+#ifdef TARGET_NR_olduname
+    case TARGET_NR_olduname:
+        goto unimplemented;
+#endif
+#ifdef TARGET_NR_iopl
+    case TARGET_NR_iopl:
+        goto unimplemented;
+#endif
+    case TARGET_NR_vhangup:
+        ret = get_errno(vhangup());
+        break;
+#ifdef TARGET_NR_idle
+    case TARGET_NR_idle:
+        goto unimplemented;
+#endif
+#ifdef TARGET_NR_syscall
+    case TARGET_NR_syscall:
+    	ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0);
+    	break;
+#endif
+    case TARGET_NR_wait4:
+        {
+            int status;
+            abi_long status_ptr = arg2;
+            struct rusage rusage, *rusage_ptr;
+            abi_ulong target_rusage = arg4;
+            if (target_rusage)
+                rusage_ptr = &rusage;
+            else
+                rusage_ptr = NULL;
+            ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
+            if (!is_error(ret)) {
+                if (status_ptr) {
+                    if (put_user_s32(status, status_ptr))
+                        goto efault;
+                }
+                if (target_rusage)
+                    host_to_target_rusage(target_rusage, &rusage);
+            }
+        }
+        break;
+#ifdef TARGET_NR_swapoff
+    case TARGET_NR_swapoff:
+        if (!(p = lock_user_string(arg1)))
+            goto efault;
+        ret = get_errno(swapoff(p));
+        unlock_user(p, arg1, 0);
+        break;
+#endif
+    case TARGET_NR_sysinfo:
+        {
+            struct target_sysinfo *target_value;
+            struct sysinfo value;
+            ret = get_errno(sysinfo(&value));
+            if (!is_error(ret) && arg1)
+            {
+                if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0))
+                    goto efault;
+                __put_user(value.uptime, &target_value->uptime);
+                __put_user(value.loads[0], &target_value->loads[0]);
+                __put_user(value.loads[1], &target_value->loads[1]);
+                __put_user(value.loads[2], &target_value->loads[2]);
+                __put_user(value.totalram, &target_value->totalram);
+                __put_user(value.freeram, &target_value->freeram);
+                __put_user(value.sharedram, &target_value->sharedram);
+                __put_user(value.bufferram, &target_value->bufferram);
+                __put_user(value.totalswap, &target_value->totalswap);
+                __put_user(value.freeswap, &target_value->freeswap);
+                __put_user(value.procs, &target_value->procs);
+                __put_user(value.totalhigh, &target_value->totalhigh);
+                __put_user(value.freehigh, &target_value->freehigh);
+                __put_user(value.mem_unit, &target_value->mem_unit);
+                unlock_user_struct(target_value, arg1, 1);
+            }
+        }
+        break;
+#ifdef TARGET_NR_ipc
+    case TARGET_NR_ipc:
+	ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6);
+	break;
+#endif
+
+#ifdef TARGET_NR_msgctl
+    case TARGET_NR_msgctl:
+        ret = do_msgctl(arg1, arg2, arg3);
+        break;
+#endif
+#ifdef TARGET_NR_msgget
+    case TARGET_NR_msgget:
+        ret = get_errno(msgget(arg1, arg2));
+        break;
+#endif
+#ifdef TARGET_NR_msgrcv
+    case TARGET_NR_msgrcv:
+        ret = do_msgrcv(arg1, arg2, arg3, arg4, arg5);
+        break;
+#endif
+#ifdef TARGET_NR_msgsnd
+    case TARGET_NR_msgsnd:
+        ret = do_msgsnd(arg1, arg2, arg3, arg4);
+        break;
+#endif
+    case TARGET_NR_fsync:
+        ret = get_errno(fsync(arg1));
+        break;
+    case TARGET_NR_clone:
+#if defined(TARGET_SH4)
+        ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg5, arg4));
+#else
+        ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg4, arg5));
+#endif
+        break;
+#ifdef __NR_exit_group
+        /* new thread calls */
+    case TARGET_NR_exit_group:
+#ifdef HAVE_GPROF
+        _mcleanup();
+#endif
+        gdb_exit(cpu_env, arg1);
+        ret = get_errno(exit_group(arg1));
+        break;
+#endif
+    case TARGET_NR_setdomainname:
+        if (!(p = lock_user_string(arg1)))
+            goto efault;
+        ret = get_errno(setdomainname(p, arg2));
+        unlock_user(p, arg1, 0);
+        break;
+    case TARGET_NR_uname:
+        /* no need to transcode because we use the linux syscall */
+        {
+            struct new_utsname * buf;
+
+            if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0))
+                goto efault;
+            ret = get_errno(sys_uname(buf));
+            if (!is_error(ret)) {
+                /* Overrite the native machine name with whatever is being
+                   emulated. */
+                strcpy (buf->machine, UNAME_MACHINE);
+                /* Allow the user to override the reported release.  */
+                if (qemu_uname_release && *qemu_uname_release)
+                  strcpy (buf->release, qemu_uname_release);
+            }
+            unlock_user_struct(buf, arg1, 1);
+        }
+        break;
+#ifdef TARGET_I386
+    case TARGET_NR_modify_ldt:
+        ret = do_modify_ldt(cpu_env, arg1, arg2, arg3);
+        break;
+#if !defined(TARGET_X86_64)
+    case TARGET_NR_vm86old:
+        goto unimplemented;
+    case TARGET_NR_vm86:
+        ret = do_vm86(cpu_env, arg1, arg2);
+        break;
+#endif
+#endif
+    case TARGET_NR_adjtimex:
+        goto unimplemented;
+#ifdef TARGET_NR_create_module
+    case TARGET_NR_create_module:
+#endif
+    case TARGET_NR_init_module:
+    case TARGET_NR_delete_module:
+#ifdef TARGET_NR_get_kernel_syms
+    case TARGET_NR_get_kernel_syms:
+#endif
+        goto unimplemented;
+    case TARGET_NR_quotactl:
+        goto unimplemented;
+    case TARGET_NR_getpgid:
+        ret = get_errno(getpgid(arg1));
+        break;
+    case TARGET_NR_fchdir:
+        ret = get_errno(fchdir(arg1));
+        break;
+#ifdef TARGET_NR_bdflush /* not on x86_64 */
+    case TARGET_NR_bdflush:
+        goto unimplemented;
+#endif
+#ifdef TARGET_NR_sysfs
+    case TARGET_NR_sysfs:
+        goto unimplemented;
+#endif
+    case TARGET_NR_personality:
+        ret = get_errno(personality(arg1));
+        break;
+#ifdef TARGET_NR_afs_syscall
+    case TARGET_NR_afs_syscall:
+        goto unimplemented;
+#endif
+#ifdef TARGET_NR__llseek /* Not on alpha */
+    case TARGET_NR__llseek:
+        {
+#if defined (__x86_64__)
+            ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5));
+            if (put_user_s64(ret, arg4))
+                goto efault;
+#else
+            int64_t res;
+            ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
+            if (put_user_s64(res, arg4))
+                goto efault;
+#endif
+        }
+        break;
+#endif
+    case TARGET_NR_getdents:
+#if TARGET_ABI_BITS != 32
+        goto unimplemented;
+#elif TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64
+        {
+            struct target_dirent *target_dirp;
+            struct linux_dirent *dirp;
+            abi_long count = arg3;
+
+	    dirp = malloc(count);
+	    if (!dirp) {
+                ret = -TARGET_ENOMEM;
+                goto fail;
+            }
+
+            ret = get_errno(sys_getdents(arg1, dirp, count));
+            if (!is_error(ret)) {
+                struct linux_dirent *de;
+		struct target_dirent *tde;
+                int len = ret;
+                int reclen, treclen;
+		int count1, tnamelen;
+
+		count1 = 0;
+                de = dirp;
+                if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
+                    goto efault;
+		tde = target_dirp;
+                while (len > 0) {
+                    reclen = de->d_reclen;
+		    treclen = reclen - (2 * (sizeof(long) - sizeof(abi_long)));
+                    tde->d_reclen = tswap16(treclen);
+                    tde->d_ino = tswapl(de->d_ino);
+                    tde->d_off = tswapl(de->d_off);
+		    tnamelen = treclen - (2 * sizeof(abi_long) + 2);
+		    if (tnamelen > 256)
+                        tnamelen = 256;
+                    /* XXX: may not be correct */
+                    pstrcpy(tde->d_name, tnamelen, de->d_name);
+                    de = (struct linux_dirent *)((char *)de + reclen);
+                    len -= reclen;
+                    tde = (struct target_dirent *)((char *)tde + treclen);
+		    count1 += treclen;
+                }
+		ret = count1;
+                unlock_user(target_dirp, arg2, ret);
+            }
+	    free(dirp);
+        }
+#else
+        {
+            struct linux_dirent *dirp;
+            abi_long count = arg3;
+
+            if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
+                goto efault;
+            ret = get_errno(sys_getdents(arg1, dirp, count));
+            if (!is_error(ret)) {
+                struct linux_dirent *de;
+                int len = ret;
+                int reclen;
+                de = dirp;
+                while (len > 0) {
+                    reclen = de->d_reclen;
+                    if (reclen > len)
+                        break;
+                    de->d_reclen = tswap16(reclen);
+                    tswapls(&de->d_ino);
+                    tswapls(&de->d_off);
+                    de = (struct linux_dirent *)((char *)de + reclen);
+                    len -= reclen;
+                }
+            }
+            unlock_user(dirp, arg2, ret);
+        }
+#endif
+        break;
+#if defined(TARGET_NR_getdents64) && defined(__NR_getdents64)
+    case TARGET_NR_getdents64:
+        {
+            struct linux_dirent64 *dirp;
+            abi_long count = arg3;
+            if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0)))
+                goto efault;
+            ret = get_errno(sys_getdents64(arg1, dirp, count));
+            if (!is_error(ret)) {
+                struct linux_dirent64 *de;
+                int len = ret;
+                int reclen;
+                de = dirp;
+                while (len > 0) {
+                    reclen = de->d_reclen;
+                    if (reclen > len)
+                        break;
+                    de->d_reclen = tswap16(reclen);
+                    tswap64s((uint64_t *)&de->d_ino);
+                    tswap64s((uint64_t *)&de->d_off);
+                    de = (struct linux_dirent64 *)((char *)de + reclen);
+                    len -= reclen;
+                }
+            }
+            unlock_user(dirp, arg2, ret);
+        }
+        break;
+#endif /* TARGET_NR_getdents64 */
+#ifdef TARGET_NR__newselect
+    case TARGET_NR__newselect:
+        ret = do_select(arg1, arg2, arg3, arg4, arg5);
+        break;
+#endif
+#ifdef TARGET_NR_poll
+    case TARGET_NR_poll:
+        {
+            struct target_pollfd *target_pfd;
+            unsigned int nfds = arg2;
+            int timeout = arg3;
+            struct pollfd *pfd;
+            unsigned int i;
+
+            target_pfd = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_pollfd) * nfds, 1);
+            if (!target_pfd)
+                goto efault;
+            pfd = alloca(sizeof(struct pollfd) * nfds);
+            for(i = 0; i < nfds; i++) {
+                pfd[i].fd = tswap32(target_pfd[i].fd);
+                pfd[i].events = tswap16(target_pfd[i].events);
+            }
+            ret = get_errno(poll(pfd, nfds, timeout));
+            if (!is_error(ret)) {
+                for(i = 0; i < nfds; i++) {
+                    target_pfd[i].revents = tswap16(pfd[i].revents);
+                }
+                ret += nfds * (sizeof(struct target_pollfd)
+                               - sizeof(struct pollfd));
+            }
+            unlock_user(target_pfd, arg1, ret);
+        }
+        break;
+#endif
+    case TARGET_NR_flock:
+        /* NOTE: the flock constant seems to be the same for every
+           Linux platform */
+        ret = get_errno(flock(arg1, arg2));
+        break;
+    case TARGET_NR_readv:
+        {
+            int count = arg3;
+            struct iovec *vec;
+
+            vec = alloca(count * sizeof(struct iovec));
+            if (lock_iovec(VERIFY_WRITE, vec, arg2, count, 0) < 0)
+                goto efault;
+            ret = get_errno(readv(arg1, vec, count));
+            unlock_iovec(vec, arg2, count, 1);
+        }
+        break;
+    case TARGET_NR_writev:
+        {
+            int count = arg3;
+            struct iovec *vec;
+
+            vec = alloca(count * sizeof(struct iovec));
+            if (lock_iovec(VERIFY_READ, vec, arg2, count, 1) < 0)
+                goto efault;
+            ret = get_errno(writev(arg1, vec, count));
+            unlock_iovec(vec, arg2, count, 0);
+        }
+        break;
+    case TARGET_NR_getsid:
+        ret = get_errno(getsid(arg1));
+        break;
+#if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */
+    case TARGET_NR_fdatasync:
+        ret = get_errno(fdatasync(arg1));
+        break;
+#endif
+    case TARGET_NR__sysctl:
+        /* We don't implement this, but ENOTDIR is always a safe
+           return value. */
+        ret = -TARGET_ENOTDIR;
+        break;
+    case TARGET_NR_sched_setparam:
+        {
+            struct sched_param *target_schp;
+            struct sched_param schp;
+
+            if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1))
+                goto efault;
+            schp.sched_priority = tswap32(target_schp->sched_priority);
+            unlock_user_struct(target_schp, arg2, 0);
+            ret = get_errno(sched_setparam(arg1, &schp));
+        }
+        break;
+    case TARGET_NR_sched_getparam:
+        {
+            struct sched_param *target_schp;
+            struct sched_param schp;
+            ret = get_errno(sched_getparam(arg1, &schp));
+            if (!is_error(ret)) {
+                if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0))
+                    goto efault;
+                target_schp->sched_priority = tswap32(schp.sched_priority);
+                unlock_user_struct(target_schp, arg2, 1);
+            }
+        }
+        break;
+    case TARGET_NR_sched_setscheduler:
+        {
+            struct sched_param *target_schp;
+            struct sched_param schp;
+            if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1))
+                goto efault;
+            schp.sched_priority = tswap32(target_schp->sched_priority);
+            unlock_user_struct(target_schp, arg3, 0);
+            ret = get_errno(sched_setscheduler(arg1, arg2, &schp));
+        }
+        break;
+    case TARGET_NR_sched_getscheduler:
+        ret = get_errno(sched_getscheduler(arg1));
+        break;
+    case TARGET_NR_sched_yield:
+        ret = get_errno(sched_yield());
+        break;
+    case TARGET_NR_sched_get_priority_max:
+        ret = get_errno(sched_get_priority_max(arg1));
+        break;
+    case TARGET_NR_sched_get_priority_min:
+        ret = get_errno(sched_get_priority_min(arg1));
+        break;
+    case TARGET_NR_sched_rr_get_interval:
+        {
+            struct timespec ts;
+            ret = get_errno(sched_rr_get_interval(arg1, &ts));
+            if (!is_error(ret)) {
+                host_to_target_timespec(arg2, &ts);
+            }
+        }
+        break;
+    case TARGET_NR_nanosleep:
+        {
+            struct timespec req, rem;
+            target_to_host_timespec(&req, arg1);
+            ret = get_errno(nanosleep(&req, &rem));
+            if (is_error(ret) && arg2) {
+                host_to_target_timespec(arg2, &rem);
+            }
+        }
+        break;
+#ifdef TARGET_NR_query_module
+    case TARGET_NR_query_module:
+        goto unimplemented;
+#endif
+#ifdef TARGET_NR_nfsservctl
+    case TARGET_NR_nfsservctl:
+        goto unimplemented;
+#endif
+    case TARGET_NR_prctl:
+        switch (arg1)
+            {
+            case PR_GET_PDEATHSIG:
+                {
+                    int deathsig;
+                    ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5));
+                    if (!is_error(ret) && arg2
+                        && put_user_ual(deathsig, arg2))
+                        goto efault;
+                }
+                break;
+            default:
+                ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5));
+                break;
+            }
+        break;
+#ifdef TARGET_NR_arch_prctl
+    case TARGET_NR_arch_prctl:
+#if defined(TARGET_I386) && !defined(TARGET_ABI32)
+        ret = do_arch_prctl(cpu_env, arg1, arg2);
+        break;
+#else
+        goto unimplemented;
+#endif
+#endif
+#ifdef TARGET_NR_pread
+    case TARGET_NR_pread:
+#ifdef TARGET_ARM
+        if (((CPUARMState *)cpu_env)->eabi)
+            arg4 = arg5;
+#endif
+        if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
+            goto efault;
+        ret = get_errno(pread(arg1, p, arg3, arg4));
+        unlock_user(p, arg2, ret);
+        break;
+    case TARGET_NR_pwrite:
+#ifdef TARGET_ARM
+        if (((CPUARMState *)cpu_env)->eabi)
+            arg4 = arg5;
+#endif
+        if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
+            goto efault;
+        ret = get_errno(pwrite(arg1, p, arg3, arg4));
+        unlock_user(p, arg2, 0);
+        break;
+#endif
+#ifdef TARGET_NR_pread64
+    case TARGET_NR_pread64:
+        if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0)))
+            goto efault;
+        ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5)));
+        unlock_user(p, arg2, ret);
+        break;
+    case TARGET_NR_pwrite64:
+        if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1)))
+            goto efault;
+        ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5)));
+        unlock_user(p, arg2, 0);
+        break;
+#endif
+    case TARGET_NR_getcwd:
+        if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0)))
+            goto efault;
+        ret = get_errno(sys_getcwd1(p, arg2));
+        unlock_user(p, arg1, ret);
+        break;
+    case TARGET_NR_capget:
+        goto unimplemented;
+    case TARGET_NR_capset:
+        goto unimplemented;
+    case TARGET_NR_sigaltstack:
+#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_MIPS) || \
+    defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA)
+        ret = do_sigaltstack(arg1, arg2, get_sp_from_cpustate((CPUState *)cpu_env));
+        break;
+#else
+        goto unimplemented;
+#endif
+    case TARGET_NR_sendfile:
+        goto unimplemented;
+#ifdef TARGET_NR_getpmsg
+    case TARGET_NR_getpmsg:
+        goto unimplemented;
+#endif
+#ifdef TARGET_NR_putpmsg
+    case TARGET_NR_putpmsg:
+        goto unimplemented;
+#endif
+#ifdef TARGET_NR_vfork
+    case TARGET_NR_vfork:
+        ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD,
+                        0, 0, 0, 0));
+        break;
+#endif
+#ifdef TARGET_NR_ugetrlimit
+    case TARGET_NR_ugetrlimit:
+    {
+	struct rlimit rlim;
+	ret = get_errno(getrlimit(arg1, &rlim));
+	if (!is_error(ret)) {
+	    struct target_rlimit *target_rlim;
+            if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0))
+                goto efault;
+	    target_rlim->rlim_cur = tswapl(rlim.rlim_cur);
+	    target_rlim->rlim_max = tswapl(rlim.rlim_max);
+            unlock_user_struct(target_rlim, arg2, 1);
+	}
+	break;
+    }
+#endif
+#ifdef TARGET_NR_truncate64
+    case TARGET_NR_truncate64:
+        if (!(p = lock_user_string(arg1)))
+            goto efault;
+	ret = target_truncate64(cpu_env, p, arg2, arg3, arg4);
+        unlock_user(p, arg1, 0);
+	break;
+#endif
+#ifdef TARGET_NR_ftruncate64
+    case TARGET_NR_ftruncate64:
+	ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4);
+	break;
+#endif
+#ifdef TARGET_NR_stat64
+    case TARGET_NR_stat64:
+        if (!(p = lock_user_string(arg1)))
+            goto efault;
+        ret = get_errno(stat(path(p), &st));
+        unlock_user(p, arg1, 0);
+        if (!is_error(ret))
+            ret = host_to_target_stat64(cpu_env, arg2, &st);
+        break;
+#endif
+#ifdef TARGET_NR_lstat64
+    case TARGET_NR_lstat64:
+        if (!(p = lock_user_string(arg1)))
+            goto efault;
+        ret = get_errno(lstat(path(p), &st));
+        unlock_user(p, arg1, 0);
+        if (!is_error(ret))
+            ret = host_to_target_stat64(cpu_env, arg2, &st);
+        break;
+#endif
+#ifdef TARGET_NR_fstat64
+    case TARGET_NR_fstat64:
+        ret = get_errno(fstat(arg1, &st));
+        if (!is_error(ret))
+            ret = host_to_target_stat64(cpu_env, arg2, &st);
+        break;
+#endif
+#if defined(TARGET_NR_fstatat64) && defined(__NR_fstatat64)
+    case TARGET_NR_fstatat64:
+        if (!(p = lock_user_string(arg2)))
+            goto efault;
+        ret = get_errno(sys_fstatat64(arg1, path(p), &st, arg4));
+        if (!is_error(ret))
+            ret = host_to_target_stat64(cpu_env, arg3, &st);
+        break;
+#endif
+#ifdef USE_UID16
+    case TARGET_NR_lchown:
+        if (!(p = lock_user_string(arg1)))
+            goto efault;
+        ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3)));
+        unlock_user(p, arg1, 0);
+        break;
+    case TARGET_NR_getuid:
+        ret = get_errno(high2lowuid(getuid()));
+        break;
+    case TARGET_NR_getgid:
+        ret = get_errno(high2lowgid(getgid()));
+        break;
+    case TARGET_NR_geteuid:
+        ret = get_errno(high2lowuid(geteuid()));
+        break;
+    case TARGET_NR_getegid:
+        ret = get_errno(high2lowgid(getegid()));
+        break;
+    case TARGET_NR_setreuid:
+        ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2)));
+        break;
+    case TARGET_NR_setregid:
+        ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2)));
+        break;
+    case TARGET_NR_getgroups:
+        {
+            int gidsetsize = arg1;
+            uint16_t *target_grouplist;
+            gid_t *grouplist;
+            int i;
+
+            grouplist = alloca(gidsetsize * sizeof(gid_t));
+            ret = get_errno(getgroups(gidsetsize, grouplist));
+            if (gidsetsize == 0)
+                break;
+            if (!is_error(ret)) {
+                target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 2, 0);
+                if (!target_grouplist)
+                    goto efault;
+                for(i = 0;i < ret; i++)
+                    target_grouplist[i] = tswap16(grouplist[i]);
+                unlock_user(target_grouplist, arg2, gidsetsize * 2);
+            }
+        }
+        break;
+    case TARGET_NR_setgroups:
+        {
+            int gidsetsize = arg1;
+            uint16_t *target_grouplist;
+            gid_t *grouplist;
+            int i;
+
+            grouplist = alloca(gidsetsize * sizeof(gid_t));
+            target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 2, 1);
+            if (!target_grouplist) {
+                ret = -TARGET_EFAULT;
+                goto fail;
+            }
+            for(i = 0;i < gidsetsize; i++)
+                grouplist[i] = tswap16(target_grouplist[i]);
+            unlock_user(target_grouplist, arg2, 0);
+            ret = get_errno(setgroups(gidsetsize, grouplist));
+        }
+        break;
+    case TARGET_NR_fchown:
+        ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3)));
+        break;
+#if defined(TARGET_NR_fchownat) && defined(__NR_fchownat)
+    case TARGET_NR_fchownat:
+        if (!(p = lock_user_string(arg2))) 
+            goto efault;
+        ret = get_errno(sys_fchownat(arg1, p, low2highuid(arg3), low2highgid(arg4), arg5));
+        unlock_user(p, arg2, 0);
+        break;
+#endif
+#ifdef TARGET_NR_setresuid
+    case TARGET_NR_setresuid:
+        ret = get_errno(setresuid(low2highuid(arg1),
+                                  low2highuid(arg2),
+                                  low2highuid(arg3)));
+        break;
+#endif
+#ifdef TARGET_NR_getresuid
+    case TARGET_NR_getresuid:
+        {
+            uid_t ruid, euid, suid;
+            ret = get_errno(getresuid(&ruid, &euid, &suid));
+            if (!is_error(ret)) {
+                if (put_user_u16(high2lowuid(ruid), arg1)
+                    || put_user_u16(high2lowuid(euid), arg2)
+                    || put_user_u16(high2lowuid(suid), arg3))
+                    goto efault;
+            }
+        }
+        break;
+#endif
+#ifdef TARGET_NR_getresgid
+    case TARGET_NR_setresgid:
+        ret = get_errno(setresgid(low2highgid(arg1),
+                                  low2highgid(arg2),
+                                  low2highgid(arg3)));
+        break;
+#endif
+#ifdef TARGET_NR_getresgid
+    case TARGET_NR_getresgid:
+        {
+            gid_t rgid, egid, sgid;
+            ret = get_errno(getresgid(&rgid, &egid, &sgid));
+            if (!is_error(ret)) {
+                if (put_user_u16(high2lowgid(rgid), arg1)
+                    || put_user_u16(high2lowgid(egid), arg2)
+                    || put_user_u16(high2lowgid(sgid), arg3))
+                    goto efault;
+            }
+        }
+        break;
+#endif
+    case TARGET_NR_chown:
+        if (!(p = lock_user_string(arg1)))
+            goto efault;
+        ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3)));
+        unlock_user(p, arg1, 0);
+        break;
+    case TARGET_NR_setuid:
+        ret = get_errno(setuid(low2highuid(arg1)));
+        break;
+    case TARGET_NR_setgid:
+        ret = get_errno(setgid(low2highgid(arg1)));
+        break;
+    case TARGET_NR_setfsuid:
+        ret = get_errno(setfsuid(arg1));
+        break;
+    case TARGET_NR_setfsgid:
+        ret = get_errno(setfsgid(arg1));
+        break;
+#endif /* USE_UID16 */
+
+#ifdef TARGET_NR_lchown32
+    case TARGET_NR_lchown32:
+        if (!(p = lock_user_string(arg1)))
+            goto efault;
+        ret = get_errno(lchown(p, arg2, arg3));
+        unlock_user(p, arg1, 0);
+        break;
+#endif
+#ifdef TARGET_NR_getuid32
+    case TARGET_NR_getuid32:
+        ret = get_errno(getuid());
+        break;
+#endif
+
+#if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA)
+   /* Alpha specific */
+    case TARGET_NR_getxuid:
+	 {
+	    uid_t euid;
+	    euid=geteuid();
+	    ((CPUAlphaState *)cpu_env)->ir[IR_A4]=euid;
+	 }
+        ret = get_errno(getuid());
+        break;
+#endif
+#if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA)
+   /* Alpha specific */
+    case TARGET_NR_getxgid:
+	 {
+	    uid_t egid;
+	    egid=getegid();
+	    ((CPUAlphaState *)cpu_env)->ir[IR_A4]=egid;
+	 }
+        ret = get_errno(getgid());
+        break;
+#endif
+
+#ifdef TARGET_NR_getgid32
+    case TARGET_NR_getgid32:
+        ret = get_errno(getgid());
+        break;
+#endif
+#ifdef TARGET_NR_geteuid32
+    case TARGET_NR_geteuid32:
+        ret = get_errno(geteuid());
+        break;
+#endif
+#ifdef TARGET_NR_getegid32
+    case TARGET_NR_getegid32:
+        ret = get_errno(getegid());
+        break;
+#endif
+#ifdef TARGET_NR_setreuid32
+    case TARGET_NR_setreuid32:
+        ret = get_errno(setreuid(arg1, arg2));
+        break;
+#endif
+#ifdef TARGET_NR_setregid32
+    case TARGET_NR_setregid32:
+        ret = get_errno(setregid(arg1, arg2));
+        break;
+#endif
+#ifdef TARGET_NR_getgroups32
+    case TARGET_NR_getgroups32:
+        {
+            int gidsetsize = arg1;
+            uint32_t *target_grouplist;
+            gid_t *grouplist;
+            int i;
+
+            grouplist = alloca(gidsetsize * sizeof(gid_t));
+            ret = get_errno(getgroups(gidsetsize, grouplist));
+            if (gidsetsize == 0)
+                break;
+            if (!is_error(ret)) {
+                target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0);
+                if (!target_grouplist) {
+                    ret = -TARGET_EFAULT;
+                    goto fail;
+                }
+                for(i = 0;i < ret; i++)
+                    target_grouplist[i] = tswap32(grouplist[i]);
+                unlock_user(target_grouplist, arg2, gidsetsize * 4);
+            }
+        }
+        break;
+#endif
+#ifdef TARGET_NR_setgroups32
+    case TARGET_NR_setgroups32:
+        {
+            int gidsetsize = arg1;
+            uint32_t *target_grouplist;
+            gid_t *grouplist;
+            int i;
+
+            grouplist = alloca(gidsetsize * sizeof(gid_t));
+            target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1);
+            if (!target_grouplist) {
+                ret = -TARGET_EFAULT;
+                goto fail;
+            }
+            for(i = 0;i < gidsetsize; i++)
+                grouplist[i] = tswap32(target_grouplist[i]);
+            unlock_user(target_grouplist, arg2, 0);
+            ret = get_errno(setgroups(gidsetsize, grouplist));
+        }
+        break;
+#endif
+#ifdef TARGET_NR_fchown32
+    case TARGET_NR_fchown32:
+        ret = get_errno(fchown(arg1, arg2, arg3));
+        break;
+#endif
+#ifdef TARGET_NR_setresuid32
+    case TARGET_NR_setresuid32:
+        ret = get_errno(setresuid(arg1, arg2, arg3));
+        break;
+#endif
+#ifdef TARGET_NR_getresuid32
+    case TARGET_NR_getresuid32:
+        {
+            uid_t ruid, euid, suid;
+            ret = get_errno(getresuid(&ruid, &euid, &suid));
+            if (!is_error(ret)) {
+                if (put_user_u32(ruid, arg1)
+                    || put_user_u32(euid, arg2)
+                    || put_user_u32(suid, arg3))
+                    goto efault;
+            }
+        }
+        break;
+#endif
+#ifdef TARGET_NR_setresgid32
+    case TARGET_NR_setresgid32:
+        ret = get_errno(setresgid(arg1, arg2, arg3));
+        break;
+#endif
+#ifdef TARGET_NR_getresgid32
+    case TARGET_NR_getresgid32:
+        {
+            gid_t rgid, egid, sgid;
+            ret = get_errno(getresgid(&rgid, &egid, &sgid));
+            if (!is_error(ret)) {
+                if (put_user_u32(rgid, arg1)
+                    || put_user_u32(egid, arg2)
+                    || put_user_u32(sgid, arg3))
+                    goto efault;
+            }
+        }
+        break;
+#endif
+#ifdef TARGET_NR_chown32
+    case TARGET_NR_chown32:
+        if (!(p = lock_user_string(arg1)))
+            goto efault;
+        ret = get_errno(chown(p, arg2, arg3));
+        unlock_user(p, arg1, 0);
+        break;
+#endif
+#ifdef TARGET_NR_setuid32
+    case TARGET_NR_setuid32:
+        ret = get_errno(setuid(arg1));
+        break;
+#endif
+#ifdef TARGET_NR_setgid32
+    case TARGET_NR_setgid32:
+        ret = get_errno(setgid(arg1));
+        break;
+#endif
+#ifdef TARGET_NR_setfsuid32
+    case TARGET_NR_setfsuid32:
+        ret = get_errno(setfsuid(arg1));
+        break;
+#endif
+#ifdef TARGET_NR_setfsgid32
+    case TARGET_NR_setfsgid32:
+        ret = get_errno(setfsgid(arg1));
+        break;
+#endif
+
+    case TARGET_NR_pivot_root:
+        goto unimplemented;
+#ifdef TARGET_NR_mincore
+    case TARGET_NR_mincore:
+        {
+            void *a;
+            ret = -TARGET_EFAULT;
+            if (!(a = lock_user(VERIFY_READ, arg1,arg2, 0)))
+                goto efault;
+            if (!(p = lock_user_string(arg3)))
+                goto mincore_fail;
+            ret = get_errno(mincore(a, arg2, p));
+            unlock_user(p, arg3, ret);
+            mincore_fail:
+            unlock_user(a, arg1, 0);
+        }
+        break;
+#endif
+#ifdef TARGET_NR_arm_fadvise64_64
+    case TARGET_NR_arm_fadvise64_64:
+	{
+		/*
+		 * arm_fadvise64_64 looks like fadvise64_64 but
+		 * with different argument order
+		 */
+		abi_long temp;
+		temp = arg3;
+		arg3 = arg4;
+		arg4 = temp;
+	}
+#endif
+#if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_arm_fadvise64_64)
+#ifdef TARGET_NR_fadvise64_64
+    case TARGET_NR_fadvise64_64:
+#endif
+        /* This is a hint, so ignoring and returning success is ok.  */
+	ret = get_errno(0);
+	break;
+#endif
+#ifdef TARGET_NR_madvise
+    case TARGET_NR_madvise:
+        /* A straight passthrough may not be safe because qemu sometimes
+           turns private flie-backed mappings into anonymous mappings.
+           This will break MADV_DONTNEED.
+           This is a hint, so ignoring and returning success is ok.  */
+        ret = get_errno(0);
+        break;
+#endif
+#if TARGET_ABI_BITS == 32
+    case TARGET_NR_fcntl64:
+    {
+	int cmd;
+	struct flock64 fl;
+	struct target_flock64 *target_fl;
+#ifdef TARGET_ARM
+	struct target_eabi_flock64 *target_efl;
+#endif
+
+        switch(arg2){
+        case TARGET_F_GETLK64:
+            cmd = F_GETLK64;
+            break;
+        case TARGET_F_SETLK64:
+            cmd = F_SETLK64;
+            break;
+        case TARGET_F_SETLKW64:
+            cmd = F_SETLK64;
+            break;
+        default:
+            cmd = arg2;
+            break;
+        }
+
+        switch(arg2) {
+        case TARGET_F_GETLK64:
+#ifdef TARGET_ARM
+            if (((CPUARMState *)cpu_env)->eabi) {
+                if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1)) 
+                    goto efault;
+                fl.l_type = tswap16(target_efl->l_type);
+                fl.l_whence = tswap16(target_efl->l_whence);
+                fl.l_start = tswap64(target_efl->l_start);
+                fl.l_len = tswap64(target_efl->l_len);
+                fl.l_pid = tswapl(target_efl->l_pid);
+                unlock_user_struct(target_efl, arg3, 0);
+            } else
+#endif
+            {
+                if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1)) 
+                    goto efault;
+                fl.l_type = tswap16(target_fl->l_type);
+                fl.l_whence = tswap16(target_fl->l_whence);
+                fl.l_start = tswap64(target_fl->l_start);
+                fl.l_len = tswap64(target_fl->l_len);
+                fl.l_pid = tswapl(target_fl->l_pid);
+                unlock_user_struct(target_fl, arg3, 0);
+            }
+            ret = get_errno(fcntl(arg1, cmd, &fl));
+	    if (ret == 0) {
+#ifdef TARGET_ARM
+                if (((CPUARMState *)cpu_env)->eabi) {
+                    if (!lock_user_struct(VERIFY_WRITE, target_efl, arg3, 0)) 
+                        goto efault;
+                    target_efl->l_type = tswap16(fl.l_type);
+                    target_efl->l_whence = tswap16(fl.l_whence);
+                    target_efl->l_start = tswap64(fl.l_start);
+                    target_efl->l_len = tswap64(fl.l_len);
+                    target_efl->l_pid = tswapl(fl.l_pid);
+                    unlock_user_struct(target_efl, arg3, 1);
+                } else
+#endif
+                {
+                    if (!lock_user_struct(VERIFY_WRITE, target_fl, arg3, 0)) 
+                        goto efault;
+                    target_fl->l_type = tswap16(fl.l_type);
+                    target_fl->l_whence = tswap16(fl.l_whence);
+                    target_fl->l_start = tswap64(fl.l_start);
+                    target_fl->l_len = tswap64(fl.l_len);
+                    target_fl->l_pid = tswapl(fl.l_pid);
+                    unlock_user_struct(target_fl, arg3, 1);
+                }
+	    }
+	    break;
+
+        case TARGET_F_SETLK64:
+        case TARGET_F_SETLKW64:
+#ifdef TARGET_ARM
+            if (((CPUARMState *)cpu_env)->eabi) {
+                if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1)) 
+                    goto efault;
+                fl.l_type = tswap16(target_efl->l_type);
+                fl.l_whence = tswap16(target_efl->l_whence);
+                fl.l_start = tswap64(target_efl->l_start);
+                fl.l_len = tswap64(target_efl->l_len);
+                fl.l_pid = tswapl(target_efl->l_pid);
+                unlock_user_struct(target_efl, arg3, 0);
+            } else
+#endif
+            {
+                if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1)) 
+                    goto efault;
+                fl.l_type = tswap16(target_fl->l_type);
+                fl.l_whence = tswap16(target_fl->l_whence);
+                fl.l_start = tswap64(target_fl->l_start);
+                fl.l_len = tswap64(target_fl->l_len);
+                fl.l_pid = tswapl(target_fl->l_pid);
+                unlock_user_struct(target_fl, arg3, 0);
+            }
+            ret = get_errno(fcntl(arg1, cmd, &fl));
+	    break;
+        default:
+            ret = do_fcntl(arg1, cmd, arg3);
+            break;
+        }
+	break;
+    }
+#endif
+#ifdef TARGET_NR_cacheflush
+    case TARGET_NR_cacheflush:
+        /* self-modifying code is handled automatically, so nothing needed */
+        ret = 0;
+        break;
+#endif
+#ifdef TARGET_NR_security
+    case TARGET_NR_security:
+        goto unimplemented;
+#endif
+#ifdef TARGET_NR_getpagesize
+    case TARGET_NR_getpagesize:
+        ret = TARGET_PAGE_SIZE;
+        break;
+#endif
+    case TARGET_NR_gettid:
+        ret = get_errno(gettid());
+        break;
+#ifdef TARGET_NR_readahead
+    case TARGET_NR_readahead:
+#if TARGET_ABI_BITS == 32
+#ifdef TARGET_ARM
+        if (((CPUARMState *)cpu_env)->eabi)
+        {
+            arg2 = arg3;
+            arg3 = arg4;
+            arg4 = arg5;
+        }
+#endif
+        ret = get_errno(readahead(arg1, ((off64_t)arg3 << 32) | arg2, arg4));
+#else
+        ret = get_errno(readahead(arg1, arg2, arg3));
+#endif
+        break;
+#endif
+#ifdef TARGET_NR_setxattr
+    case TARGET_NR_setxattr:
+    case TARGET_NR_lsetxattr:
+    case TARGET_NR_fsetxattr:
+    case TARGET_NR_getxattr:
+    case TARGET_NR_lgetxattr:
+    case TARGET_NR_fgetxattr:
+    case TARGET_NR_listxattr:
+    case TARGET_NR_llistxattr:
+    case TARGET_NR_flistxattr:
+    case TARGET_NR_removexattr:
+    case TARGET_NR_lremovexattr:
+    case TARGET_NR_fremovexattr:
+        goto unimplemented_nowarn;
+#endif
+#ifdef TARGET_NR_set_thread_area
+    case TARGET_NR_set_thread_area:
+#if defined(TARGET_MIPS)
+      ((CPUMIPSState *) cpu_env)->tls_value = arg1;
+      ret = 0;
+      break;
+#elif defined(TARGET_I386) && defined(TARGET_ABI32)
+      ret = do_set_thread_area(cpu_env, arg1);
+      break;
+#else
+      goto unimplemented_nowarn;
+#endif
+#endif
+#ifdef TARGET_NR_get_thread_area
+    case TARGET_NR_get_thread_area:
+#if defined(TARGET_I386) && defined(TARGET_ABI32)
+        ret = do_get_thread_area(cpu_env, arg1);
+#else
+        goto unimplemented_nowarn;
+#endif
+#endif
+#ifdef TARGET_NR_getdomainname
+    case TARGET_NR_getdomainname:
+        goto unimplemented_nowarn;
+#endif
+
+#ifdef TARGET_NR_clock_gettime
+    case TARGET_NR_clock_gettime:
+    {
+        struct timespec ts;
+        ret = get_errno(clock_gettime(arg1, &ts));
+        if (!is_error(ret)) {
+            host_to_target_timespec(arg2, &ts);
+        }
+        break;
+    }
+#endif
+#ifdef TARGET_NR_clock_getres
+    case TARGET_NR_clock_getres:
+    {
+        struct timespec ts;
+        ret = get_errno(clock_getres(arg1, &ts));
+        if (!is_error(ret)) {
+            host_to_target_timespec(arg2, &ts);
+        }
+        break;
+    }
+#endif
+#ifdef TARGET_NR_clock_nanosleep
+    case TARGET_NR_clock_nanosleep:
+    {
+        struct timespec ts;
+        target_to_host_timespec(&ts, arg3);
+        ret = get_errno(clock_nanosleep(arg1, arg2, &ts, arg4 ? &ts : NULL));
+        if (arg4)
+            host_to_target_timespec(arg4, &ts);
+        break;
+    }
+#endif
+
+#if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address)
+    case TARGET_NR_set_tid_address:
+        ret = get_errno(set_tid_address((int *)g2h(arg1)));
+        break;
+#endif
+
+#if defined(TARGET_NR_tkill) && defined(__NR_tkill)
+    case TARGET_NR_tkill:
+        ret = get_errno(sys_tkill((int)arg1, target_to_host_signal(arg2)));
+        break;
+#endif
+
+#if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
+    case TARGET_NR_tgkill:
+	ret = get_errno(sys_tgkill((int)arg1, (int)arg2,
+                        target_to_host_signal(arg3)));
+	break;
+#endif
+
+#ifdef TARGET_NR_set_robust_list
+    case TARGET_NR_set_robust_list:
+	goto unimplemented_nowarn;
+#endif
+
+#if defined(TARGET_NR_utimensat) && defined(__NR_utimensat)
+    case TARGET_NR_utimensat:
+        {
+            struct timespec ts[2];
+            target_to_host_timespec(ts, arg3);
+            target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec));
+            if (!arg2)
+                ret = get_errno(sys_utimensat(arg1, NULL, ts, arg4));
+            else {
+                if (!(p = lock_user_string(arg2))) {
+                    ret = -TARGET_EFAULT;
+                    goto fail;
+                }
+                ret = get_errno(sys_utimensat(arg1, path(p), ts, arg4));
+                unlock_user(p, arg2, 0);
+            }
+        }
+	break;
+#endif
+#if defined(USE_NPTL)
+    case TARGET_NR_futex:
+        ret = do_futex(arg1, arg2, arg3, arg4, arg5, arg6);
+        break;
+#endif
+#if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
+    case TARGET_NR_inotify_init:
+        ret = get_errno(sys_inotify_init());
+        break;
+#endif
+#if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
+    case TARGET_NR_inotify_add_watch:
+        p = lock_user_string(arg2);
+        ret = get_errno(sys_inotify_add_watch(arg1, path(p), arg3));
+        unlock_user(p, arg2, 0);
+        break;
+#endif
+#if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
+    case TARGET_NR_inotify_rm_watch:
+        ret = get_errno(sys_inotify_rm_watch(arg1, arg2));
+        break;
+#endif
+
+    default:
+    unimplemented:
+        if (show_missing_syscalls)
+            gemu_log("qemu: Unsupported syscall: %d\n", num);
+#if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list)
+    unimplemented_nowarn:
+#endif
+        ret = -TARGET_ENOSYS;
+        break;
+    }
+fail:
+#ifdef DEBUG
+    gemu_log(" = %ld\n", ret);
+#endif
+    if(do_strace)
+        print_syscall_ret(num, ret);
+    return ret;
+efault:
+    ret = -TARGET_EFAULT;
+    goto fail;
+}