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bzip2/lzma: fix built-in initramfs vs CONFIG_RD_GZIP

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Impact: Resolves build failures in some configurations

Makes it possible to disable CONFIG_RD_GZIP . In that case, the
built-in initramfs will be compressed by whatever compressor is
available (bzip2 or lzma) or left uncompressed if none is available.

It also removes a couple of warnings which occur when no ramdisk
compression at all is chosen.

It also restores the select ZLIB_INFLATE in drivers/block/Kconfig
which somehow came missing. This is needed to activate compilation of
the stuff in zlib_deflate.

Signed-off-by: Alain Knaff <alain@knaff.lu>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
Alain Knaff 2009-01-07 00:10:27 -08:00 • committed by H. Peter Anvin
parent fb9a4ca982
commit a26ee60f90
7 changed files with 135 additions and 20 deletions
Download patch file Download diff file Expand all files Collapse all files

17
scripts/gen_initramfs_list.sh
View file

@ -5,7 +5,7 @@
# Released under the terms of the GNU GPL
#
# Generate a cpio packed initramfs. It uses gen_init_cpio to generate
# the cpio archive, and gzip to pack it.
# the cpio archive, and then compresses it.
# The script may also be used to generate the inputfile used for gen_init_cpio
# This script assumes that gen_init_cpio is located in usr/ directory
@ -16,8 +16,8 @@ usage() {
cat << EOF
Usage:
$0 [-o <file>] [-u <uid>] [-g <gid>] {-d | <cpio_source>} ...
-o <file> Create gzipped initramfs file named <file> using
gen_init_cpio and gzip
-o <file> Create compressed initramfs file named <file> using
gen_init_cpio and compressor depending on the extension
-u <uid> User ID to map to user ID 0 (root).
<uid> is only meaningful if <cpio_source> is a
directory. "squash" forces all files to uid 0.
@ -225,6 +225,7 @@ cpio_list=
output="/dev/stdout"
output_file=""
is_cpio_compressed=
compr="gzip -9 -f"
arg="$1"
case "$arg" in
@ -233,11 +234,15 @@ case "$arg" in
echo "deps_initramfs := \\"
shift
;;
"-o") # generate gzipped cpio image named $1
"-o") # generate compressed cpio image named $1
shift
output_file="$1"
cpio_list="$(mktemp ${TMPDIR:-/tmp}/cpiolist.XXXXXX)"
output=${cpio_list}
echo "$output_file" | grep -q "\.gz$" && compr="gzip -9 -f"
echo "$output_file" | grep -q "\.bz2$" && compr="bzip2 -9 -f"
echo "$output_file" | grep -q "\.lzma$" && compr="lzma -9 -f"
echo "$output_file" | grep -q "\.cpio$" && compr="cat"
shift
;;
esac
@ -274,7 +279,7 @@ while [ $# -gt 0 ]; do
esac
done
# If output_file is set we will generate cpio archive and gzip it
# If output_file is set we will generate cpio archive and compress it
# we are carefull to delete tmp files
if [ ! -z ${output_file} ]; then
if [ -z ${cpio_file} ]; then
@ -287,7 +292,7 @@ if [ ! -z ${output_file} ]; then
if [ "${is_cpio_compressed}" = "compressed" ]; then
cat ${cpio_tfile} > ${output_file}
else
cat ${cpio_tfile} | gzip -f -9 - > ${output_file}
cat ${cpio_tfile} | ${compr} - > ${output_file}
fi
[ -z ${cpio_file} ] && rm ${cpio_tfile}
fi