Merge tag 'v2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

[mv-sheeva.git] / scripts / xz_wrap.sh

diff --git a/scripts/xz_wrap.sh b/scripts/xz_wrap.sh
new file mode 100644 (file)
index 0000000..17a5798
--- /dev/null
+++ b/scripts/xz_wrap.sh
@@ -0,0 +1,23 @@
+#!/bin/sh
+#
+# This is a wrapper for xz to compress the kernel image using appropriate
+# compression options depending on the architecture.
+#
+# Author: Lasse Collin <lasse.collin@tukaani.org>
+#
+# This file has been put into the public domain.
+# You can do whatever you want with this file.
+#
+
+BCJ=
+LZMA2OPTS=
+
+case $ARCH in
+       x86|x86_64)     BCJ=--x86 ;;
+       powerpc)        BCJ=--powerpc ;;
+       ia64)           BCJ=--ia64; LZMA2OPTS=pb=4 ;;
+       arm)            BCJ=--arm ;;
+       sparc)          BCJ=--sparc ;;
+esac
+
+exec xz --check=crc32 $BCJ --lzma2=$LZMA2OPTS,dict=32MiB