| #!/bin/sh |
| # Enable automatic program execution by the kernel. |
| |
| qemu_target_list="i386 i486 alpha arm armeb sparc32plus ppc ppc64 ppc64le m68k \ |
| mips mipsel mipsn32 mipsn32el mips64 mips64el \ |
| sh4 sh4eb s390x aarch64 aarch64_be hppa riscv32 riscv64 xtensa xtensaeb \ |
| microblaze microblazeel or1k x86_64" |
| |
| 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\x00\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\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff' |
| i486_family=i386 |
| |
| x86_64_magic='\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x3e\x00' |
| x86_64_mask='\xff\xff\xff\xff\xff\xfe\xfe\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff' |
| x86_64_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\x00\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=armeb |
| |
| 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\x00\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\x00\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\x00\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\x00\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\x00\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\x00\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 |
| |
| aarch64_be_magic='\x7fELF\x02\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xb7' |
| aarch64_be_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff' |
| aarch64_be_family=armeb |
| |
| hppa_magic='\x7f\x45\x4c\x46\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x0f' |
| hppa_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff' |
| hppa_family=hppa |
| |
| riscv32_magic='\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xf3\x00' |
| riscv32_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff' |
| riscv32_family=riscv |
| |
| riscv64_magic='\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xf3\x00' |
| riscv64_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff' |
| riscv64_family=riscv |
| |
| xtensa_magic='\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x5e\x00' |
| xtensa_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff' |
| xtensa_family=xtensa |
| |
| xtensaeb_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x5e' |
| xtensaeb_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff' |
| xtensaeb_family=xtensaeb |
| |
| microblaze_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xba\xab' |
| microblaze_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff' |
| microblaze_family=microblaze |
| |
| microblazeel_magic='\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xab\xba' |
| microblazeel_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff' |
| microblazeel_family=microblazeel |
| |
| or1k_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x5c' |
| or1k_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff' |
| or1k_family=or1k |
| |
| qemu_get_family() { |
| cpu=${HOST_ARCH:-$(uname -m)} |
| case "$cpu" in |
| amd64|i386|i486|i586|i686|i86pc|BePC|x86_64) |
| echo "i386" |
| ;; |
| mips*) |
| echo "mips" |
| ;; |
| "Power Macintosh"|ppc64|powerpc|ppc) |
| echo "ppc" |
| ;; |
| ppc64el|ppc64le) |
| echo "ppcle" |
| ;; |
| arm|armel|armhf|arm64|armv[4-9]*l|aarch64) |
| echo "arm" |
| ;; |
| armeb|armv[4-9]*b|aarch64_be) |
| echo "armeb" |
| ;; |
| sparc*) |
| echo "sparc" |
| ;; |
| riscv*) |
| echo "riscv" |
| ;; |
| *) |
| echo "$cpu" |
| ;; |
| esac |
| } |
| |
| usage() { |
| cat <<EOF |
| Usage: qemu-binfmt-conf.sh [--qemu-path PATH][--debian][--systemd CPU] |
| [--help][--credential yes|no][--exportdir PATH] |
| [--persistent yes|no][--qemu-suffix SUFFIX] |
| |
| Configure binfmt_misc to use qemu interpreter |
| |
| --help: display this usage |
| --qemu-path: set path to qemu interpreter ($QEMU_PATH) |
| --qemu-suffix: add a suffix to the default interpreter name |
| --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. If CPU is "ALL", generate a |
| file for all known cpus |
| --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 |
| --persistent: if yes, the interpreter is loaded when binfmt is |
| configured and remains in memory. All future uses |
| are cloned from the open file. |
| |
| 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 "$EXPORTDIR" |
| } |
| |
| qemu_generate_register() { |
| flags="" |
| if [ "$CREDENTIAL" = "yes" ] ; then |
| flags="OC" |
| fi |
| if [ "$PERSISTENT" = "yes" ] ; then |
| flags="${flags}F" |
| fi |
| |
| 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 |
| credential $CREDENTIAL |
| EOF |
| } |
| |
| qemu_set_binfmts() { |
| # probe cpu type |
| host_family=$(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="$QEMU_PATH/qemu-i386" |
| fi |
| |
| qemu="$qemu$QEMU_SUFFIX" |
| if [ "$host_family" != "$family" ] ; then |
| $BINFMT_SET |
| fi |
| done |
| } |
| |
| CHECK=qemu_check_bintfmt_misc |
| BINFMT_SET=qemu_register_interpreter |
| |
| SYSTEMDDIR="/etc/binfmt.d" |
| DEBIANDIR="/usr/share/binfmts" |
| |
| QEMU_PATH=/usr/local/bin |
| CREDENTIAL=no |
| PERSISTENT=no |
| QEMU_SUFFIX="" |
| |
| options=$(getopt -o ds:Q:S:e:hc:p: -l debian,systemd:,qemu-path:,qemu-suffix:,exportdir:,help,credential:,persistent: -- "$@") |
| eval set -- "$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 |
| if [ "$1" != "ALL" ] ; then |
| 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 |
| fi |
| ;; |
| -Q|--qemu-path) |
| shift |
| QEMU_PATH="$1" |
| ;; |
| -F|--qemu-suffix) |
| shift |
| QEMU_SUFFIX="$1" |
| ;; |
| -e|--exportdir) |
| shift |
| EXPORTDIR="$1" |
| ;; |
| -h|--help) |
| usage |
| exit 1 |
| ;; |
| -c|--credential) |
| shift |
| CREDENTIAL="$1" |
| ;; |
| -p|--persistent) |
| shift |
| PERSISTENT="$1" |
| ;; |
| *) |
| break |
| ;; |
| esac |
| shift |
| done |
| |
| $CHECK |
| qemu_set_binfmts |