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421 lines
15 KiB
Bash
421 lines
15 KiB
Bash
#!/bin/sh
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# Enable automatic program execution by the kernel.
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qemu_target_list="i386 i486 alpha arm armeb sparc sparc32plus sparc64 \
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ppc ppc64 ppc64le m68k mips mipsel mipsn32 mipsn32el mips64 mips64el \
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sh4 sh4eb s390x aarch64 aarch64_be hppa riscv32 riscv64 xtensa xtensaeb \
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microblaze microblazeel or1k x86_64 hexagon loongarch64"
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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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x86_64_magic='\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x3e\x00'
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x86_64_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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x86_64_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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sparc64_magic='\x7fELF\x02\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x2b'
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sparc64_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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sparc64_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\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
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mips_mask='\xff\xff\xff\xff\xff\xff\xff\x00\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x20'
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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\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
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mipsel_mask='\xff\xff\xff\xff\xff\xff\xff\x00\x00\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff\xff\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x20\x00\x00\x00'
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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\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x20'
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mipsn32_mask='\xff\xff\xff\xff\xff\xff\xff\x00\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x20'
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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\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x20\x00\x00\x00'
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mipsn32el_mask='\xff\xff\xff\xff\xff\xff\xff\x00\x00\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff\xff\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x20\x00\x00\x00'
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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\x00\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\x00\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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or1k_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x5c'
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or1k_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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or1k_family=or1k
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hexagon_magic='\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xa4\x00'
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hexagon_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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hexagon_family=hexagon
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loongarch64_magic='\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x02\x01'
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loongarch64_mask='\xff\xff\xff\xff\xff\xff\xff\xfc\x00\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff'
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loongarch64_family=loongarch
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qemu_get_family() {
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cpu=${HOST_ARCH:-$(uname -m)}
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case "$cpu" in
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amd64|i386|i486|i586|i686|i86pc|BePC|x86_64)
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echo "i386"
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;;
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mips*)
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echo "mips"
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;;
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"Power Macintosh"|ppc64|powerpc|ppc)
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echo "ppc"
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;;
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ppc64el|ppc64le)
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echo "ppcle"
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;;
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arm|armel|armhf|arm64|armv[4-9]*l|aarch64)
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echo "arm"
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;;
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armeb|armv[4-9]*b|aarch64_be)
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echo "armeb"
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;;
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sparc*)
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echo "sparc"
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;;
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riscv*)
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echo "riscv"
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;;
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loongarch*)
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echo "loongarch"
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;;
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*)
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echo "$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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[--persistent yes|no][--qemu-suffix SUFFIX]
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[--preserve-argv0 yes|no]
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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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--qemu-suffix: add a suffix to the default interpreter name
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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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--persistent: if yes, the interpreter is loaded when binfmt is
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configured and remains in memory. All future uses
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are cloned from the open file.
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--preserve-argv0 preserve argv[0]
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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 "$EXPORTDIR"
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}
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qemu_generate_register() {
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flags=""
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if [ "$CREDENTIAL" = "yes" ] ; then
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flags="OC"
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fi
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if [ "$PERSISTENT" = "yes" ] ; then
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flags="${flags}F"
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fi
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if [ "$PRESERVE_ARG0" = "yes" ] ; then
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flags="${flags}P"
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fi
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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
|
|
mask $mask
|
|
credentials $CREDENTIAL
|
|
preserve $PRESERVE_ARG0
|
|
fix_binary $PERSISTENT
|
|
EOF
|
|
}
|
|
|
|
qemu_set_binfmts() {
|
|
# probe cpu type
|
|
host_family=$(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
|
|
$BINFMT_SET
|
|
fi
|
|
done
|
|
}
|
|
|
|
CHECK=qemu_check_bintfmt_misc
|
|
BINFMT_SET=qemu_register_interpreter
|
|
|
|
SYSTEMDDIR="/etc/binfmt.d"
|
|
DEBIANDIR="/usr/share/binfmts"
|
|
|
|
QEMU_PATH=/usr/local/bin
|
|
CREDENTIAL=no
|
|
PERSISTENT=no
|
|
PRESERVE_ARG0=no
|
|
QEMU_SUFFIX=""
|
|
|
|
_longopts="debian,systemd:,qemu-path:,qemu-suffix:,exportdir:,help,credential:,\
|
|
persistent:,preserve-argv0:"
|
|
options=$(getopt -o ds:Q:S:e:hc:p:g:F: -l ${_longopts} -- "$@")
|
|
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"
|
|
;;
|
|
-g|--preserve-argv0)
|
|
shift
|
|
PRESERVE_ARG0="$1"
|
|
;;
|
|
*)
|
|
break
|
|
;;
|
|
esac
|
|
shift
|
|
done
|
|
|
|
$CHECK
|
|
qemu_set_binfmts
|