sources/qemu/rc.qemu-user

   1 #!/bin/sh
   2
   3 #
   4 # Copyright (c) 2005 Josh Parsons <jbparsons@ucdavis.edu>
   5 #
   6 # Portions derived from qemu-binfmt-conf.sh
   7 # Copyright (c) 2003 Fabrice Bellard
   8 #
   9 # This program is free software; you can redistribute it and/or modify
  10 # it under the terms of the GNU General Public License as published by
  11 # the Free Software Foundation; either version 2 of the License, or
  12 # (at your option) any later version.
  13 #
  14 # This program is distributed in the hope that it will be useful,
  15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17 # General Public License for more details.
  18 #
  19 # You should have received a copy of the GNU General Public License
  20 # along with this program; if not, write to the Free Software
  21 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  22 #
  23
  24 QEMU_BIN_DIR=/opt/bin
  25 BINFMT_MISC_DIR=""
  26 MOUNT_AT=""
  27
  28 # try to install binfmt_misc
  29 if grep -Fq binfmt_misc /proc/modules
  30 then true ;
  31 elif [ -x /sbin/modprobe ]
  32 then /sbin/modprobe binfmt_misc
  33 elif [ -x /opt/sbin/modprobe ]
  34 then /opt/sbin/modprobe binfmt_misc
  35 elif [ -r /lib/modules/`uname -r`/kernel/fs/binfmt_misc.o ]
  36 then insmod /lib/modules/`uname -r`/kernel/fs/binfmt_misc.o
  37 else exit 0 # no binfmt_misc module
  38 fi
  39
  40 # now look for its controls
  41 parse_mounts() {
  42     BINFMT_MISC_DIR=$2
  43 }
  44
  45 if [ -d /proc/sys/fs/binfmt_misc/status ]
  46 then BINFMT_MISC_DIR=/proc/sys/fs/binfmt_misc
  47 elif grep -Fq binfmt_misc /proc/mounts
  48 then parse_mounts `grep -F binfmt_misc /proc/mounts`
  49 elif [ -d /proc/sys/fs/binfmt_misc ]
  50 then MOUNT_AT=/proc/sys/fs/binfmt_misc
  51 else mkdir -p /tmp/binfmt_misc ; MOUNT_AT=/tmp/binfmt_misc
  52 fi
  53
  54 # mount binfmt_misc's control interface if we need to
  55 if [ -n "$MOUNT_AT" ]
  56 then
  57     mount -t binfmt_misc nodev $MOUNT_AT
  58     BINFMT_MISC_DIR=$MOUNT_AT
  59 fi
  60
  61 echo "Using binfmt_misc interface fs at $BINFMT_MISC_DIR"
  62 echo "Using qemu binaries in $QEMU_BIN_DIR"
  63
  64 # probe cpu type
  65 cpu=`uname -m`
  66 case "$cpu" in
  67   i386|i486|i586|i686|i86pc|BePC)
  68     cpu="i386"
  69   ;;
  70   "Power Macintosh"|ppc|ppc64)
  71     cpu="ppc"
  72   ;;
  73   arm*)
  74     cpu="arm"
  75   ;;
  76 esac
  77
  78 # register the interpreter for each cpu except for the native one
  79 if [ $cpu != "i386" ] ; then
  80     echo ":i386:M::\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x03\x00:\xff\xff\xff\xff\xff\xfe\xfe\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfb\xff\xff\xff:$QEMU_BIN_DIR/qemu-i386:" > $BINFMT_MISC_DIR/register
  81     echo ":i486:M::\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x06\x00:\xff\xff\xff\xff\xff\xfe\xfe\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfb\xff\xff\xff:$QEMU_BIN_DIR/qemu-i386:" > $BINFMT_MISC_DIR/register
  82 fi
  83 if [ $cpu != "arm" ] ; then
  84     echo   ":arm:M::\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x28\x00:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfb\xff\xff\xff:$QEMU_BIN_DIR/qemu-arm:" > $BINFMT_MISC_DIR/register
  85     echo   ":armeb:M::\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x28:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfb\xff\xff:$QEMU_BIN_DIR/qemu-armeb:" > $BINFMT_MISC_DIR/register
  86 fi
  87 if [ $cpu != "sparc" ] ; then
  88     echo   ":sparc:M::\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x02:\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfb\xff\xff\xff:$QEMU_BIN_DIR/qemu-sparc:" > $BINFMT_MISC_DIR/register
  89 fi
  90 if [ $cpu != "ppc" ] ; then
  91     echo   ":ppc:M::\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x14:\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfb\xff\xff\xff:$QEMU_BIN_DIR/qemu-ppc:" > $BINFMT_MISC_DIR/register
  92 fi
  93
  94 # umount binfmt_misc's control interface if we mounted it earlier
  95 if [ -n "$MOUNT_AT" ]
  96 then
  97     umount $MOUNT_AT
  98 fi