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Diffstat (limited to 'scripts/qemu-binfmt-conf.sh')
-rwxr-xr-x[-rw-r--r--]scripts/qemu-binfmt-conf.sh389
1 files changed, 320 insertions, 69 deletions
diff --git a/scripts/qemu-binfmt-conf.sh b/scripts/qemu-binfmt-conf.sh
index f5bba70d06..de4d1c13d4 100644..100755
--- a/scripts/qemu-binfmt-conf.sh
+++ b/scripts/qemu-binfmt-conf.sh
@@ -1,72 +1,323 @@
#!/bin/sh
# enable automatic i386/ARM/M68K/MIPS/SPARC/PPC/s390 program execution by the kernel
-# load the binfmt_misc module
-if [ ! -d /proc/sys/fs/binfmt_misc ]; then
- /sbin/modprobe binfmt_misc
-fi
-if [ ! -f /proc/sys/fs/binfmt_misc/register ]; then
- mount binfmt_misc -t binfmt_misc /proc/sys/fs/binfmt_misc
-fi
-
-# probe cpu type
-cpu=$(uname -m)
-case "$cpu" in
- i386|i486|i586|i686|i86pc|BePC|x86_64)
- cpu="i386"
- ;;
- m68k)
- cpu="m68k"
- ;;
- mips*)
- cpu="mips"
- ;;
- "Power Macintosh"|ppc|ppc64)
- cpu="ppc"
- ;;
- armv[4-9]*)
- cpu="arm"
- ;;
-esac
-
-# register the interpreter for each cpu except for the native one
-if [ $cpu != "i386" ] ; then
- 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\xfe\xff\xff\xff:/usr/local/bin/qemu-i386:' > /proc/sys/fs/binfmt_misc/register
- 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\xfe\xff\xff\xff:/usr/local/bin/qemu-i386:' > /proc/sys/fs/binfmt_misc/register
-fi
-if [ $cpu != "alpha" ] ; then
- echo ':alpha:M::\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x26\x90:\xff\xff\xff\xff\xff\xfe\xfe\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff:/usr/local/bin/qemu-alpha:' > /proc/sys/fs/binfmt_misc/register
-fi
-if [ $cpu != "arm" ] ; then
- 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\xfe\xff\xff\xff:/usr/local/bin/qemu-arm:' > /proc/sys/fs/binfmt_misc/register
- 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\xfe\xff\xff:/usr/local/bin/qemu-armeb:' > /proc/sys/fs/binfmt_misc/register
-fi
-if [ $cpu != "aarch64" ] ; then
- echo ':aarch64:M::\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xb7\x00:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff:/usr/local/bin/qemu-aarch64:' > /proc/sys/fs/binfmt_misc/register
-fi
-if [ $cpu != "sparc" ] ; then
- 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\xff\xfe\xff\xff:/usr/local/bin/qemu-sparc:' > /proc/sys/fs/binfmt_misc/register
-fi
-if [ $cpu != "ppc" ] ; then
- 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\xff\xfe\xff\xff:/usr/local/bin/qemu-ppc:' > /proc/sys/fs/binfmt_misc/register
-fi
-if [ $cpu != "m68k" ] ; then
- echo 'Please check cpu value and header information for m68k!'
- echo ':m68k:M::\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x04:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff:/usr/local/bin/qemu-m68k:' > /proc/sys/fs/binfmt_misc/register
-fi
-if [ $cpu != "mips" ] ; then
- # FIXME: We could use the other endianness on a MIPS host.
- echo ':mips:M::\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff:/usr/local/bin/qemu-mips:' > /proc/sys/fs/binfmt_misc/register
- echo ':mipsel:M::\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08\x00:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff:/usr/local/bin/qemu-mipsel:' > /proc/sys/fs/binfmt_misc/register
- echo ':mipsn32:M::\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff:/usr/local/bin/qemu-mipsn32:' > /proc/sys/fs/binfmt_misc/register
- echo ':mipsn32el:M::\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08\x00:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff:/usr/local/bin/qemu-mipsn32el:' > /proc/sys/fs/binfmt_misc/register
- echo ':mips64:M::\x7fELF\x02\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff:/usr/local/bin/qemu-mips64:' > /proc/sys/fs/binfmt_misc/register
- echo ':mips64el:M::\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08\x00:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff:/usr/local/bin/qemu-mips64el:' > /proc/sys/fs/binfmt_misc/register
-fi
-if [ $cpu != "sh" ] ; then
- echo ':sh4:M::\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x2a\x00:\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff:/usr/local/bin/qemu-sh4:' > /proc/sys/fs/binfmt_misc/register
- echo ':sh4eb:M::\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x2a:\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff:/usr/local/bin/qemu-sh4eb:' > /proc/sys/fs/binfmt_misc/register
-fi
-if [ $cpu != "s390x" ] ; then
- echo ':s390x:M::\x7fELF\x02\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x16:\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff:/usr/local/bin/qemu-s390x:' > /proc/sys/fs/binfmt_misc/register
-fi
+qemu_target_list="i386 i486 alpha arm sparc32plus ppc ppc64 ppc64le m68k \
+mips mipsel mipsn32 mipsn32el mips64 mips64el \
+sh4 sh4eb s390x aarch64"
+
+i386_magic='\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x03\x00'
+i386_mask='\xff\xff\xff\xff\xff\xfe\xfe\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff'
+i386_family=i386
+
+i486_magic='\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x06\x00'
+i486_mask='\xff\xff\xff\xff\xff\xfe\xfe\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff'
+i486_family=i386
+
+alpha_magic='\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x26\x90'
+alpha_mask='\xff\xff\xff\xff\xff\xfe\xfe\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff'
+alpha_family=alpha
+
+arm_magic='\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x28\x00'
+arm_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff'
+arm_family=arm
+
+armeb_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x28'
+armeb_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff'
+armeb_family=arm
+
+sparc_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x02'
+sparc_mask='\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff'
+sparc_family=sparc
+
+sparc32plus_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x12'
+sparc32plus_mask='\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff'
+sparc32plus_family=sparc
+
+ppc_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x14'
+ppc_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff'
+ppc_family=ppc
+
+ppc64_magic='\x7fELF\x02\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x15'
+ppc64_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff'
+ppc64_family=ppc
+
+ppc64le_magic='\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x15\x00'
+ppc64le_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\x00'
+ppc64le_family=ppcle
+
+m68k_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x04'
+m68k_mask='\xff\xff\xff\xff\xff\xff\xfe\xfe\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff'
+m68k_family=m68k
+
+# FIXME: We could use the other endianness on a MIPS host.
+
+mips_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08'
+mips_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff'
+mips_family=mips
+
+mipsel_magic='\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08\x00'
+mipsel_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff'
+mipsel_family=mips
+
+mipsn32_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08'
+mipsn32_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff'
+mipsn32_family=mips
+
+mipsn32el_magic='\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08\x00'
+mipsn32el_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff'
+mipsn32el_family=mips
+
+mips64_magic='\x7fELF\x02\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08'
+mips64_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff'
+mips64_family=mips
+
+mips64el_magic='\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08\x00'
+mips64el_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff'
+mips64el_family=mips
+
+sh4_magic='\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x2a\x00'
+sh4_mask='\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff'
+sh4_family=sh4
+
+sh4eb_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x2a'
+sh4eb_mask='\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff'
+sh4eb_family=sh4
+
+s390x_magic='\x7fELF\x02\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x16'
+s390x_mask='\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff'
+s390x_family=s390x
+
+aarch64_magic='\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xb7\x00'
+aarch64_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff'
+aarch64_family=arm
+
+qemu_get_family() {
+ cpu=${HOST_ARCH:-$(uname -m)}
+ case "$cpu" in
+ amd64|i386|i486|i586|i686|i86pc|BePC|x86_64)
+ echo "i386"
+ ;;
+ mips*)
+ echo "mips"
+ ;;
+ "Power Macintosh"|ppc64|powerpc|ppc)
+ echo "ppc"
+ ;;
+ ppc64el|ppc64le)
+ echo "ppcle"
+ ;;
+ arm|armel|armhf|arm64|armv[4-9]*)
+ echo "arm"
+ ;;
+ sparc*)
+ echo "sparc"
+ ;;
+ *)
+ echo "$cpu"
+ ;;
+ esac
+}
+
+usage() {
+ cat <<EOF
+Usage: qemu-binfmt-conf.sh [--qemu-path PATH][--debian][--systemd CPU]
+ [--help][--credential yes|no][--exportdir PATH]
+
+ Configure binfmt_misc to use qemu interpreter
+
+ --help: display this usage
+ --qemu-path: set path to qemu interpreter ($QEMU_PATH)
+ --debian: don't write into /proc,
+ instead generate update-binfmts templates
+ --systemd: don't write into /proc,
+ instead generate file for systemd-binfmt.service
+ for the given CPU
+ --exportdir: define where to write configuration files
+ (default: $SYSTEMDDIR or $DEBIANDIR)
+ --credential: if yes, credential and security tokens are
+ calculated according to the binary to interpret
+
+ To import templates with update-binfmts, use :
+
+ sudo update-binfmts --importdir ${EXPORTDIR:-$DEBIANDIR} --import qemu-CPU
+
+ To remove interpreter, use :
+
+ sudo update-binfmts --package qemu-CPU --remove qemu-CPU $QEMU_PATH
+
+ With systemd, binfmt files are loaded by systemd-binfmt.service
+
+ The environment variable HOST_ARCH allows to override 'uname' to generate
+ configuration files for a different architecture than the current one.
+
+ where CPU is one of:
+
+ $qemu_target_list
+
+EOF
+}
+
+qemu_check_access() {
+ if [ ! -w "$1" ] ; then
+ echo "ERROR: cannot write to $1" 1>&2
+ exit 1
+ fi
+}
+
+qemu_check_bintfmt_misc() {
+ # load the binfmt_misc module
+ if [ ! -d /proc/sys/fs/binfmt_misc ]; then
+ if ! /sbin/modprobe binfmt_misc ; then
+ exit 1
+ fi
+ fi
+ if [ ! -f /proc/sys/fs/binfmt_misc/register ]; then
+ if ! mount binfmt_misc -t binfmt_misc /proc/sys/fs/binfmt_misc ; then
+ exit 1
+ fi
+ fi
+
+ qemu_check_access /proc/sys/fs/binfmt_misc/register
+}
+
+installed_dpkg() {
+ dpkg --status "$1" > /dev/null 2>&1
+}
+
+qemu_check_debian() {
+ if [ ! -e /etc/debian_version ] ; then
+ echo "WARNING: your system is not a Debian based distro" 1>&2
+ elif ! installed_dpkg binfmt-support ; then
+ echo "WARNING: package binfmt-support is needed" 1>&2
+ fi
+ qemu_check_access "$EXPORTDIR"
+}
+
+qemu_check_systemd() {
+ if ! systemctl -q is-enabled systemd-binfmt.service ; then
+ echo "WARNING: systemd-binfmt.service is missing or disabled" 1>&2
+ fi
+ qemu_check_access "$EXPORTDIR"
+}
+
+qemu_generate_register() {
+ echo ":qemu-$cpu:M::$magic:$mask:$qemu:$FLAGS"
+}
+
+qemu_register_interpreter() {
+ echo "Setting $qemu as binfmt interpreter for $cpu"
+ qemu_generate_register > /proc/sys/fs/binfmt_misc/register
+}
+
+qemu_generate_systemd() {
+ echo "Setting $qemu as binfmt interpreter for $cpu for systemd-binfmt.service"
+ qemu_generate_register > "$EXPORTDIR/qemu-$cpu.conf"
+}
+
+qemu_generate_debian() {
+ cat > "$EXPORTDIR/qemu-$cpu" <<EOF
+package qemu-$cpu
+interpreter $qemu
+magic $magic
+mask $mask
+EOF
+ if [ "$FLAGS" = "OC" ] ; then
+ echo "credentials yes" >> "$EXPORTDIR/qemu-$cpu"
+ fi
+}
+
+qemu_set_binfmts() {
+ # probe cpu type
+ host_family=$(qemu_get_family)
+
+ # register the interpreter for each cpu except for the native one
+
+ for cpu in ${qemu_target_list} ; do
+ magic=$(eval echo \$${cpu}_magic)
+ mask=$(eval echo \$${cpu}_mask)
+ family=$(eval echo \$${cpu}_family)
+
+ if [ "$magic" = "" ] || [ "$mask" = "" ] || [ "$family" = "" ] ; then
+ echo "INTERNAL ERROR: unknown cpu $cpu" 1>&2
+ continue
+ fi
+
+ qemu="$QEMU_PATH/qemu-$cpu"
+ if [ "$cpu" = "i486" ] ; then
+ qemu="$QEMU_PATH/qemu-i386"
+ fi
+
+ if [ "$host_family" != "$family" ] ; then
+ $BINFMT_SET
+ fi
+ done
+}
+
+CHECK=qemu_check_bintfmt_misc
+BINFMT_SET=qemu_register_interpreter
+
+SYSTEMDDIR="/etc/binfmt.d"
+DEBIANDIR="/usr/share/binfmts"
+
+QEMU_PATH=/usr/local/bin
+FLAGS=""
+
+options=$(getopt -o ds:Q:e:hc: -l debian,systemd:,qemu-path:,exportdir:,help,credential: -- "$@")
+eval set -- "$options"
+
+while true ; do
+ case "$1" in
+ -d|--debian)
+ CHECK=qemu_check_debian
+ BINFMT_SET=qemu_generate_debian
+ EXPORTDIR=${EXPORTDIR:-$DEBIANDIR}
+ ;;
+ -s|--systemd)
+ CHECK=qemu_check_systemd
+ BINFMT_SET=qemu_generate_systemd
+ EXPORTDIR=${EXPORTDIR:-$SYSTEMDDIR}
+ shift
+ # check given cpu is in the supported CPU list
+ for cpu in ${qemu_target_list} ; do
+ if [ "$cpu" == "$1" ] ; then
+ break
+ fi
+ done
+
+ if [ "$cpu" == "$1" ] ; then
+ qemu_target_list="$1"
+ else
+ echo "ERROR: unknown CPU \"$1\"" 1>&2
+ usage
+ exit 1
+ fi
+ ;;
+ -Q|--qemu-path)
+ shift
+ QEMU_PATH="$1"
+ ;;
+ -e|--exportdir)
+ shift
+ EXPORTDIR="$1"
+ ;;
+ -h|--help)
+ usage
+ exit 1
+ ;;
+ -c|--credential)
+ shift
+ if [ "$1" = "yes" ] ; then
+ FLAGS="OC"
+ else
+ FLAGS=""
+ fi
+ ;;
+ *)
+ break
+ ;;
+ esac
+ shift
+done
+
+$CHECK
+qemu_set_binfmts
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-03 10:57:26 +0000