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22 lines
642 B
Bash
Executable File
22 lines
642 B
Bash
Executable File
#!/bin/bash
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set -e
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clang="$1"
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#
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# Get Clang's default includes on this system, as opposed to those seen by
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# '-target bpf'. This fixes "missing" files on some architectures/distros,
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# such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc.
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#
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# Use '-idirafter': Don't interfere with include mechanics except where the
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# build would have failed anyways.
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#
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"$clang" -v -E - < /dev/null 2>&1 \
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| sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }' \
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"$clang" -dM -E - < /dev/null \
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| grep '__riscv_xlen ' \
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| awk '{printf("-D__riscv_xlen=%d -D__BITS_PER_LONG=%d", $$3, $$3)}'
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