# SUBARCH tells the usermode build what the underlying arch is. That is set
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# first, and if a usermode build is happening, the "ARCH=um" on the command
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# line overrides the setting of ARCH below. If a native build is happening,
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# then ARCH is assigned, getting whatever value it gets normally, and
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# SUBARCH is subsequently ignored.
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SUBARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \
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-e s/sun4u/sparc64/ \
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-e s/arm.*/arm/ -e s/sa110/arm/ \
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-e s/s390x/s390/ -e s/parisc64/parisc/ \
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-e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
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-e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ \
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-e s/riscv.*/riscv/)
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