mirror of https://gitee.com/openkylin/qemu.git
366 lines
12 KiB
Bash
Executable File
366 lines
12 KiB
Bash
Executable File
#!/bin/sh
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# enable automatic i386/ARM/M68K/MIPS/SPARC/PPC/s390/HPPA/Xtensa/microblaze
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# program execution by the kernel
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qemu_target_list="i386 i486 alpha arm armeb sparc32plus ppc ppc64 ppc64le m68k \
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mips mipsel mipsn32 mipsn32el mips64 mips64el \
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sh4 sh4eb s390x aarch64 aarch64_be hppa riscv32 riscv64 xtensa xtensaeb microblaze microblazeel"
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i386_magic='\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x03\x00'
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i386_mask='\xff\xff\xff\xff\xff\xfe\xfe\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff'
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i386_family=i386
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i486_magic='\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x06\x00'
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i486_mask='\xff\xff\xff\xff\xff\xfe\xfe\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff'
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i486_family=i386
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alpha_magic='\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x26\x90'
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alpha_mask='\xff\xff\xff\xff\xff\xfe\xfe\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff'
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alpha_family=alpha
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arm_magic='\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x28\x00'
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arm_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff'
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arm_family=arm
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armeb_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x28'
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armeb_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff'
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armeb_family=armeb
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sparc_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x02'
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sparc_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff'
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sparc_family=sparc
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sparc32plus_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x12'
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sparc32plus_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff'
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sparc32plus_family=sparc
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ppc_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x14'
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ppc_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff'
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ppc_family=ppc
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ppc64_magic='\x7fELF\x02\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x15'
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ppc64_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff'
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ppc64_family=ppc
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ppc64le_magic='\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x15\x00'
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ppc64le_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\x00'
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ppc64le_family=ppcle
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m68k_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x04'
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m68k_mask='\xff\xff\xff\xff\xff\xff\xfe\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff'
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m68k_family=m68k
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# FIXME: We could use the other endianness on a MIPS host.
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mips_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08'
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mips_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff'
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mips_family=mips
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mipsel_magic='\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08\x00'
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mipsel_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff'
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mipsel_family=mips
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mipsn32_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08'
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mipsn32_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff'
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mipsn32_family=mips
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mipsn32el_magic='\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08\x00'
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mipsn32el_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff'
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mipsn32el_family=mips
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mips64_magic='\x7fELF\x02\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08'
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mips64_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff'
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mips64_family=mips
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mips64el_magic='\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08\x00'
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mips64el_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff'
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mips64el_family=mips
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sh4_magic='\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x2a\x00'
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sh4_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff'
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sh4_family=sh4
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sh4eb_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x2a'
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sh4eb_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff'
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sh4eb_family=sh4
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s390x_magic='\x7fELF\x02\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x16'
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s390x_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff'
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s390x_family=s390x
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aarch64_magic='\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xb7\x00'
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aarch64_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff'
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aarch64_family=arm
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aarch64_be_magic='\x7fELF\x02\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xb7'
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aarch64_be_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff'
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aarch64_be_family=armeb
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hppa_magic='\x7f\x45\x4c\x46\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x0f'
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hppa_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff'
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hppa_family=hppa
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riscv32_magic='\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xf3\x00'
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riscv32_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff'
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riscv32_family=riscv
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riscv64_magic='\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xf3\x00'
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riscv64_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff'
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riscv64_family=riscv
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xtensa_magic='\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x5e\x00'
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xtensa_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff'
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xtensa_family=xtensa
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xtensaeb_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x5e'
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xtensaeb_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff'
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xtensaeb_family=xtensaeb
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microblaze_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xba\xab'
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microblaze_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff'
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microblaze_family=microblaze
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microblazeel_magic='\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xab\xba'
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microblazeel_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff'
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microblazeel_family=microblazeel
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qemu_get_family() {
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cpu=${HOST_ARCH:-$(uname -m)}
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case "$cpu" in
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amd64|i386|i486|i586|i686|i86pc|BePC|x86_64)
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echo "i386"
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;;
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mips*)
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echo "mips"
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;;
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"Power Macintosh"|ppc64|powerpc|ppc)
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echo "ppc"
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;;
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ppc64el|ppc64le)
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echo "ppcle"
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;;
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arm|armel|armhf|arm64|armv[4-9]*l|aarch64)
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echo "arm"
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;;
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armeb|armv[4-9]*b|aarch64_be)
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echo "armeb"
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;;
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sparc*)
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echo "sparc"
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;;
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riscv*)
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echo "riscv"
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;;
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*)
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echo "$cpu"
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;;
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esac
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}
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usage() {
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cat <<EOF
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Usage: qemu-binfmt-conf.sh [--qemu-path PATH][--debian][--systemd CPU]
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[--help][--credential yes|no][--exportdir PATH]
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Configure binfmt_misc to use qemu interpreter
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--help: display this usage
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--qemu-path: set path to qemu interpreter ($QEMU_PATH)
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--debian: don't write into /proc,
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instead generate update-binfmts templates
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--systemd: don't write into /proc,
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instead generate file for systemd-binfmt.service
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for the given CPU. If CPU is "ALL", generate a
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file for all known cpus
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--exportdir: define where to write configuration files
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(default: $SYSTEMDDIR or $DEBIANDIR)
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--credential: if yes, credential and security tokens are
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calculated according to the binary to interpret
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To import templates with update-binfmts, use :
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sudo update-binfmts --importdir ${EXPORTDIR:-$DEBIANDIR} --import qemu-CPU
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To remove interpreter, use :
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sudo update-binfmts --package qemu-CPU --remove qemu-CPU $QEMU_PATH
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With systemd, binfmt files are loaded by systemd-binfmt.service
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The environment variable HOST_ARCH allows to override 'uname' to generate
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configuration files for a different architecture than the current one.
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where CPU is one of:
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$qemu_target_list
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EOF
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}
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qemu_check_access() {
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if [ ! -w "$1" ] ; then
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echo "ERROR: cannot write to $1" 1>&2
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exit 1
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fi
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}
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qemu_check_bintfmt_misc() {
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# load the binfmt_misc module
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if [ ! -d /proc/sys/fs/binfmt_misc ]; then
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if ! /sbin/modprobe binfmt_misc ; then
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exit 1
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fi
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fi
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if [ ! -f /proc/sys/fs/binfmt_misc/register ]; then
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if ! mount binfmt_misc -t binfmt_misc /proc/sys/fs/binfmt_misc ; then
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exit 1
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fi
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fi
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qemu_check_access /proc/sys/fs/binfmt_misc/register
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}
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installed_dpkg() {
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dpkg --status "$1" > /dev/null 2>&1
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}
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qemu_check_debian() {
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if [ ! -e /etc/debian_version ] ; then
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echo "WARNING: your system is not a Debian based distro" 1>&2
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elif ! installed_dpkg binfmt-support ; then
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echo "WARNING: package binfmt-support is needed" 1>&2
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fi
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qemu_check_access "$EXPORTDIR"
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}
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qemu_check_systemd() {
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if ! systemctl -q is-enabled systemd-binfmt.service ; then
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echo "WARNING: systemd-binfmt.service is missing or disabled" 1>&2
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fi
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qemu_check_access "$EXPORTDIR"
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}
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qemu_generate_register() {
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echo ":qemu-$cpu:M::$magic:$mask:$qemu:$FLAGS"
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}
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qemu_register_interpreter() {
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echo "Setting $qemu as binfmt interpreter for $cpu"
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qemu_generate_register > /proc/sys/fs/binfmt_misc/register
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}
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qemu_generate_systemd() {
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echo "Setting $qemu as binfmt interpreter for $cpu for systemd-binfmt.service"
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qemu_generate_register > "$EXPORTDIR/qemu-$cpu.conf"
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}
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qemu_generate_debian() {
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cat > "$EXPORTDIR/qemu-$cpu" <<EOF
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package qemu-$cpu
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interpreter $qemu
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magic $magic
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mask $mask
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EOF
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if [ "$FLAGS" = "OC" ] ; then
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echo "credentials yes" >> "$EXPORTDIR/qemu-$cpu"
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fi
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}
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qemu_set_binfmts() {
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# probe cpu type
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host_family=$(qemu_get_family)
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# register the interpreter for each cpu except for the native one
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for cpu in ${qemu_target_list} ; do
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magic=$(eval echo \$${cpu}_magic)
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mask=$(eval echo \$${cpu}_mask)
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family=$(eval echo \$${cpu}_family)
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if [ "$magic" = "" ] || [ "$mask" = "" ] || [ "$family" = "" ] ; then
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echo "INTERNAL ERROR: unknown cpu $cpu" 1>&2
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continue
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fi
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qemu="$QEMU_PATH/qemu-$cpu"
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if [ "$cpu" = "i486" ] ; then
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qemu="$QEMU_PATH/qemu-i386"
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fi
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if [ "$host_family" != "$family" ] ; then
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$BINFMT_SET
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fi
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done
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}
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CHECK=qemu_check_bintfmt_misc
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BINFMT_SET=qemu_register_interpreter
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SYSTEMDDIR="/etc/binfmt.d"
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DEBIANDIR="/usr/share/binfmts"
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QEMU_PATH=/usr/local/bin
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FLAGS=""
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options=$(getopt -o ds:Q:e:hc: -l debian,systemd:,qemu-path:,exportdir:,help,credential: -- "$@")
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eval set -- "$options"
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while true ; do
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case "$1" in
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-d|--debian)
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CHECK=qemu_check_debian
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BINFMT_SET=qemu_generate_debian
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EXPORTDIR=${EXPORTDIR:-$DEBIANDIR}
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;;
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-s|--systemd)
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CHECK=qemu_check_systemd
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BINFMT_SET=qemu_generate_systemd
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EXPORTDIR=${EXPORTDIR:-$SYSTEMDDIR}
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shift
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# check given cpu is in the supported CPU list
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if [ "$1" != "ALL" ] ; then
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for cpu in ${qemu_target_list} ; do
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if [ "$cpu" = "$1" ] ; then
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break
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fi
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done
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if [ "$cpu" = "$1" ] ; then
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qemu_target_list="$1"
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else
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echo "ERROR: unknown CPU \"$1\"" 1>&2
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usage
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exit 1
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fi
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fi
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;;
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-Q|--qemu-path)
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shift
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QEMU_PATH="$1"
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;;
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-e|--exportdir)
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shift
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EXPORTDIR="$1"
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;;
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-h|--help)
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usage
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exit 1
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;;
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-c|--credential)
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shift
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if [ "$1" = "yes" ] ; then
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FLAGS="OC"
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else
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FLAGS=""
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fi
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;;
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*)
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break
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;;
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esac
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shift
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done
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$CHECK
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qemu_set_binfmts
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