qemu-binfmt-conf.sh (14037B)
1#!/bin/sh 2# Enable automatic program execution by the kernel. 3 4qemu_target_list="i386 i486 alpha arm armeb sparc sparc32plus sparc64 \ 5ppc ppc64 ppc64le m68k mips mipsel mipsn32 mipsn32el mips64 mips64el \ 6sh4 sh4eb s390x aarch64 aarch64_be hppa riscv32 riscv64 xtensa xtensaeb \ 7microblaze microblazeel or1k x86_64 hexagon" 8 9i386_magic='\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x03\x00' 10i386_mask='\xff\xff\xff\xff\xff\xfe\xfe\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff' 11i386_family=i386 12 13i486_magic='\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x06\x00' 14i486_mask='\xff\xff\xff\xff\xff\xfe\xfe\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff' 15i486_family=i386 16 17x86_64_magic='\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x3e\x00' 18x86_64_mask='\xff\xff\xff\xff\xff\xfe\xfe\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff' 19x86_64_family=i386 20 21alpha_magic='\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x26\x90' 22alpha_mask='\xff\xff\xff\xff\xff\xfe\xfe\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff' 23alpha_family=alpha 24 25arm_magic='\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x28\x00' 26arm_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff' 27arm_family=arm 28 29armeb_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x28' 30armeb_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff' 31armeb_family=armeb 32 33sparc_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x02' 34sparc_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff' 35sparc_family=sparc 36 37sparc32plus_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x12' 38sparc32plus_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff' 39sparc32plus_family=sparc 40 41sparc64_magic='\x7fELF\x02\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x2b' 42sparc64_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff' 43sparc64_family=sparc 44 45ppc_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x14' 46ppc_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff' 47ppc_family=ppc 48 49ppc64_magic='\x7fELF\x02\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x15' 50ppc64_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff' 51ppc64_family=ppc 52 53ppc64le_magic='\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x15\x00' 54ppc64le_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\x00' 55ppc64le_family=ppcle 56 57m68k_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x04' 58m68k_mask='\xff\xff\xff\xff\xff\xff\xfe\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff' 59m68k_family=m68k 60 61# FIXME: We could use the other endianness on a MIPS host. 62 63mips_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08' 64mips_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff' 65mips_family=mips 66 67mipsel_magic='\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08\x00' 68mipsel_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff' 69mipsel_family=mips 70 71mipsn32_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08' 72mipsn32_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff' 73mipsn32_family=mips 74 75mipsn32el_magic='\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08\x00' 76mipsn32el_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff' 77mipsn32el_family=mips 78 79mips64_magic='\x7fELF\x02\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08' 80mips64_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff' 81mips64_family=mips 82 83mips64el_magic='\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08\x00' 84mips64el_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff' 85mips64el_family=mips 86 87sh4_magic='\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x2a\x00' 88sh4_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff' 89sh4_family=sh4 90 91sh4eb_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x2a' 92sh4eb_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff' 93sh4eb_family=sh4 94 95s390x_magic='\x7fELF\x02\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x16' 96s390x_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff' 97s390x_family=s390x 98 99aarch64_magic='\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xb7\x00' 100aarch64_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff' 101aarch64_family=arm 102 103aarch64_be_magic='\x7fELF\x02\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xb7' 104aarch64_be_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff' 105aarch64_be_family=armeb 106 107hppa_magic='\x7f\x45\x4c\x46\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x0f' 108hppa_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff' 109hppa_family=hppa 110 111riscv32_magic='\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xf3\x00' 112riscv32_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff' 113riscv32_family=riscv 114 115riscv64_magic='\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xf3\x00' 116riscv64_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff' 117riscv64_family=riscv 118 119xtensa_magic='\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x5e\x00' 120xtensa_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff' 121xtensa_family=xtensa 122 123xtensaeb_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x5e' 124xtensaeb_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff' 125xtensaeb_family=xtensaeb 126 127microblaze_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xba\xab' 128microblaze_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff' 129microblaze_family=microblaze 130 131microblazeel_magic='\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xab\xba' 132microblazeel_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff' 133microblazeel_family=microblazeel 134 135or1k_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x5c' 136or1k_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff' 137or1k_family=or1k 138 139hexagon_magic='\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xa4\x00' 140hexagon_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff' 141hexagon_family=hexagon 142 143qemu_get_family() { 144 cpu=${HOST_ARCH:-$(uname -m)} 145 case "$cpu" in 146 amd64|i386|i486|i586|i686|i86pc|BePC|x86_64) 147 echo "i386" 148 ;; 149 mips*) 150 echo "mips" 151 ;; 152 "Power Macintosh"|ppc64|powerpc|ppc) 153 echo "ppc" 154 ;; 155 ppc64el|ppc64le) 156 echo "ppcle" 157 ;; 158 arm|armel|armhf|arm64|armv[4-9]*l|aarch64) 159 echo "arm" 160 ;; 161 armeb|armv[4-9]*b|aarch64_be) 162 echo "armeb" 163 ;; 164 sparc*) 165 echo "sparc" 166 ;; 167 riscv*) 168 echo "riscv" 169 ;; 170 *) 171 echo "$cpu" 172 ;; 173 esac 174} 175 176usage() { 177 cat <<EOF 178Usage: qemu-binfmt-conf.sh [--qemu-path PATH][--debian][--systemd CPU] 179 [--help][--credential yes|no][--exportdir PATH] 180 [--persistent yes|no][--qemu-suffix SUFFIX] 181 [--preserve-argv0 yes|no] 182 183 Configure binfmt_misc to use qemu interpreter 184 185 --help: display this usage 186 --qemu-path: set path to qemu interpreter ($QEMU_PATH) 187 --qemu-suffix: add a suffix to the default interpreter name 188 --debian: don't write into /proc, 189 instead generate update-binfmts templates 190 --systemd: don't write into /proc, 191 instead generate file for systemd-binfmt.service 192 for the given CPU. If CPU is "ALL", generate a 193 file for all known cpus 194 --exportdir: define where to write configuration files 195 (default: $SYSTEMDDIR or $DEBIANDIR) 196 --credential: if yes, credential and security tokens are 197 calculated according to the binary to interpret 198 --persistent: if yes, the interpreter is loaded when binfmt is 199 configured and remains in memory. All future uses 200 are cloned from the open file. 201 --preserve-argv0 preserve argv[0] 202 203 To import templates with update-binfmts, use : 204 205 sudo update-binfmts --importdir ${EXPORTDIR:-$DEBIANDIR} --import qemu-CPU 206 207 To remove interpreter, use : 208 209 sudo update-binfmts --package qemu-CPU --remove qemu-CPU $QEMU_PATH 210 211 With systemd, binfmt files are loaded by systemd-binfmt.service 212 213 The environment variable HOST_ARCH allows to override 'uname' to generate 214 configuration files for a different architecture than the current one. 215 216 where CPU is one of: 217 218 $qemu_target_list 219 220EOF 221} 222 223qemu_check_access() { 224 if [ ! -w "$1" ] ; then 225 echo "ERROR: cannot write to $1" 1>&2 226 exit 1 227 fi 228} 229 230qemu_check_bintfmt_misc() { 231 # load the binfmt_misc module 232 if [ ! -d /proc/sys/fs/binfmt_misc ]; then 233 if ! /sbin/modprobe binfmt_misc ; then 234 exit 1 235 fi 236 fi 237 if [ ! -f /proc/sys/fs/binfmt_misc/register ]; then 238 if ! mount binfmt_misc -t binfmt_misc /proc/sys/fs/binfmt_misc ; then 239 exit 1 240 fi 241 fi 242 243 qemu_check_access /proc/sys/fs/binfmt_misc/register 244} 245 246installed_dpkg() { 247 dpkg --status "$1" > /dev/null 2>&1 248} 249 250qemu_check_debian() { 251 if [ ! -e /etc/debian_version ] ; then 252 echo "WARNING: your system is not a Debian based distro" 1>&2 253 elif ! installed_dpkg binfmt-support ; then 254 echo "WARNING: package binfmt-support is needed" 1>&2 255 fi 256 qemu_check_access "$EXPORTDIR" 257} 258 259qemu_check_systemd() { 260 if ! systemctl -q is-enabled systemd-binfmt.service ; then 261 echo "WARNING: systemd-binfmt.service is missing or disabled" 1>&2 262 fi 263 qemu_check_access "$EXPORTDIR" 264} 265 266qemu_generate_register() { 267 flags="" 268 if [ "$CREDENTIAL" = "yes" ] ; then 269 flags="OC" 270 fi 271 if [ "$PERSISTENT" = "yes" ] ; then 272 flags="${flags}F" 273 fi 274 if [ "$PRESERVE_ARG0" = "yes" ] ; then 275 flags="${flags}P" 276 fi 277 278 echo ":qemu-$cpu:M::$magic:$mask:$qemu:$flags" 279} 280 281qemu_register_interpreter() { 282 echo "Setting $qemu as binfmt interpreter for $cpu" 283 qemu_generate_register > /proc/sys/fs/binfmt_misc/register 284} 285 286qemu_generate_systemd() { 287 echo "Setting $qemu as binfmt interpreter for $cpu for systemd-binfmt.service" 288 qemu_generate_register > "$EXPORTDIR/qemu-$cpu.conf" 289} 290 291qemu_generate_debian() { 292 cat > "$EXPORTDIR/qemu-$cpu" <<EOF 293package qemu-$cpu 294interpreter $qemu 295magic $magic 296mask $mask 297credentials $CREDENTIAL 298preserve $PRESERVE_ARG0 299fix_binary $PERSISTENT 300EOF 301} 302 303qemu_set_binfmts() { 304 # probe cpu type 305 host_family=$(qemu_get_family) 306 307 # register the interpreter for each cpu except for the native one 308 309 for cpu in ${qemu_target_list} ; do 310 magic=$(eval echo \$${cpu}_magic) 311 mask=$(eval echo \$${cpu}_mask) 312 family=$(eval echo \$${cpu}_family) 313 314 if [ "$magic" = "" ] || [ "$mask" = "" ] || [ "$family" = "" ] ; then 315 echo "INTERNAL ERROR: unknown cpu $cpu" 1>&2 316 continue 317 fi 318 319 qemu="$QEMU_PATH/qemu-$cpu" 320 if [ "$cpu" = "i486" ] ; then 321 qemu="$QEMU_PATH/qemu-i386" 322 fi 323 324 qemu="$qemu$QEMU_SUFFIX" 325 if [ "$host_family" != "$family" ] ; then 326 $BINFMT_SET 327 fi 328 done 329} 330 331CHECK=qemu_check_bintfmt_misc 332BINFMT_SET=qemu_register_interpreter 333 334SYSTEMDDIR="/etc/binfmt.d" 335DEBIANDIR="/usr/share/binfmts" 336 337QEMU_PATH=/usr/local/bin 338CREDENTIAL=no 339PERSISTENT=no 340PRESERVE_ARG0=no 341QEMU_SUFFIX="" 342 343options=$(getopt -o ds:Q:S:e:hc:p:g: -l debian,systemd:,qemu-path:,qemu-suffix:,exportdir:,help,credential:,persistent:,preserve-argv0: -- "$@") 344eval set -- "$options" 345 346while true ; do 347 case "$1" in 348 -d|--debian) 349 CHECK=qemu_check_debian 350 BINFMT_SET=qemu_generate_debian 351 EXPORTDIR=${EXPORTDIR:-$DEBIANDIR} 352 ;; 353 -s|--systemd) 354 CHECK=qemu_check_systemd 355 BINFMT_SET=qemu_generate_systemd 356 EXPORTDIR=${EXPORTDIR:-$SYSTEMDDIR} 357 shift 358 # check given cpu is in the supported CPU list 359 if [ "$1" != "ALL" ] ; then 360 for cpu in ${qemu_target_list} ; do 361 if [ "$cpu" = "$1" ] ; then 362 break 363 fi 364 done 365 366 if [ "$cpu" = "$1" ] ; then 367 qemu_target_list="$1" 368 else 369 echo "ERROR: unknown CPU \"$1\"" 1>&2 370 usage 371 exit 1 372 fi 373 fi 374 ;; 375 -Q|--qemu-path) 376 shift 377 QEMU_PATH="$1" 378 ;; 379 -F|--qemu-suffix) 380 shift 381 QEMU_SUFFIX="$1" 382 ;; 383 -e|--exportdir) 384 shift 385 EXPORTDIR="$1" 386 ;; 387 -h|--help) 388 usage 389 exit 1 390 ;; 391 -c|--credential) 392 shift 393 CREDENTIAL="$1" 394 ;; 395 -p|--persistent) 396 shift 397 PERSISTENT="$1" 398 ;; 399 -g|--preserve-argv0) 400 shift 401 PRESERVE_ARG0="$1" 402 ;; 403 *) 404 break 405 ;; 406 esac 407 shift 408done 409 410$CHECK 411qemu_set_binfmts