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kbuild: handle compressed cpio initramfs-es

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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>
This commit is contained in:
Alex Landau 2007-04-26 00:17:29 -07:00 committed by Sam Ravnborg
parent b4d5171ac7
commit c299ec2d8e
1 changed files with 8 additions and 2 deletions
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10
scripts/gen_initramfs_list.sh
View file

@ -191,9 +191,10 @@ input_file() {
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_file=
cpio_list=
output="/dev/stdout"
output_file=""
is_cpio_compressed=
arg="$1"
case "$arg" in
@ -282,7 +284,11 @@ if [ ! -z ${output_file} ]; then
cpio_tfile=${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