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0db7bd8ca0
The BCJ filters were meant to be enabled already on these archs, but the xz_wrap.sh script was buggy. Enabling the filters should give smaller kernel images. xz_wrap.sh will now use $SRCARCH instead of $ARCH to detect the architecture. That way it doesn't need to care about the subarchs (like i386 vs. x86_64) since the BCJ filters don't care either. Signed-off-by: Lasse Collin <lasse.collin@tukaani.org> Acked-by: Jan Beulich <jbeulich@suse.com> Acked-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
24 lines
562 B
Bash
24 lines
562 B
Bash
#!/bin/sh
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#
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# This is a wrapper for xz to compress the kernel image using appropriate
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# compression options depending on the architecture.
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#
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# Author: Lasse Collin <lasse.collin@tukaani.org>
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#
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# This file has been put into the public domain.
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# You can do whatever you want with this file.
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#
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BCJ=
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LZMA2OPTS=
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case $SRCARCH in
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x86) BCJ=--x86 ;;
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powerpc) BCJ=--powerpc ;;
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ia64) BCJ=--ia64; LZMA2OPTS=pb=4 ;;
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arm) BCJ=--arm ;;
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sparc) BCJ=--sparc ;;
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esac
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exec xz --check=crc32 $BCJ --lzma2=$LZMA2OPTS,dict=32MiB
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