kbuild: handle compressed cpio initramfs-es
Make kbuild handle compressed cpio initramfs-es. An already compressed
cpio is copied directly to usr/, while a non-compressed cpio is filtered
through gzip (no changes here) on its way to usr/.
If the user has created a compressed cpio by other means, this saves him
from uncompressing it, just to be compressed again by kbuild.
Signed-off-by: Alex Landau <landau.alex@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
diff --git a/scripts/gen_initramfs_list.sh b/scripts/gen_initramfs_list.sh
index 43f75d6..3111f4a 100644
--- a/scripts/gen_initramfs_list.sh
+++ b/scripts/gen_initramfs_list.sh
@@ -191,9 +191,10 @@
source="$1"
if [ -f "$1" ]; then
${dep_list}header "$1"
- is_cpio="$(echo "$1" | sed 's/^.*\.cpio/cpio/')"
+ is_cpio="$(echo "$1" | sed 's/^.*\.cpio\(\..*\)\?/cpio/')"
if [ $2 -eq 0 -a ${is_cpio} == "cpio" ]; then
cpio_file=$1
+ echo "$1" | grep -q '^.*\.cpio\..*' && is_cpio_compressed="compressed"
[ ! -z ${dep_list} ] && echo "$1"
return 0
fi
@@ -223,6 +224,7 @@
cpio_list=
output="/dev/stdout"
output_file=""
+is_cpio_compressed=
arg="$1"
case "$arg" in
@@ -282,7 +284,11 @@
cpio_tfile=${cpio_file}
fi
rm ${cpio_list}
- cat ${cpio_tfile} | gzip -f -9 - > ${output_file}
+ if [ "${is_cpio_compressed}" = "compressed" ]; then
+ cat ${cpio_tfile} > ${output_file}
+ else
+ cat ${cpio_tfile} | gzip -f -9 - > ${output_file}
+ fi
[ -z ${cpio_file} ] && rm ${cpio_tfile}
fi
exit 0