linux/scripts/xz_wrap.sh
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   1#!/bin/sh
   2#
   3# This is a wrapper for xz to compress the kernel image using appropriate
   4# compression options depending on the architecture.
   5#
   6# Author: Lasse Collin <lasse.collin@tukaani.org>
   7#
   8# This file has been put into the public domain.
   9# You can do whatever you want with this file.
  10#
  11
  12BCJ=
  13LZMA2OPTS=
  14
  15case $ARCH in
  16        x86|x86_64)     BCJ=--x86 ;;
  17        powerpc)        BCJ=--powerpc ;;
  18        ia64)           BCJ=--ia64; LZMA2OPTS=pb=4 ;;
  19        arm)            BCJ=--arm ;;
  20        sparc)          BCJ=--sparc ;;
  21esac
  22
  23exec xz --check=crc32 $BCJ --lzma2=$LZMA2OPTS,dict=32MiB
  24
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