diff options
Diffstat (limited to 'scripts/gen_initramfs_list.sh')
| -rw-r--r-- | scripts/gen_initramfs_list.sh | 65 |
1 files changed, 47 insertions, 18 deletions
diff --git a/scripts/gen_initramfs_list.sh b/scripts/gen_initramfs_list.sh index 684fb9cdc05..17fa901418a 100644 --- a/scripts/gen_initramfs_list.sh +++ b/scripts/gen_initramfs_list.sh @@ -1,11 +1,11 @@ -#!/bin/bash +#!/bin/sh # Copyright (C) Martin Schlemmer <azarah@nosferatu.za.org> # Copyright (C) 2006 Sam Ravnborg <sam@ravnborg.org> # # 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. @@ -97,7 +97,7 @@ print_mtime() { } list_parse() { - echo "$1 \\" + [ ! -L "$1" ] && echo "$1 \\" || : } # for each file print a line in following format @@ -105,9 +105,9 @@ list_parse() { # for links, devices etc the format differs. See gen_init_cpio for details parse() { local location="$1" - local name="${location/${srcdir}//}" + local name="/${location#${srcdir}}" # change '//' into '/' - name="${name//\/\///}" + name=$(echo "$name" | sed -e 's://*:/:g') local mode="$2" local uid="$3" local gid="$4" @@ -117,8 +117,8 @@ parse() { [ "$root_gid" = "squash" ] && gid=0 || [ "$gid" -eq "$root_gid" ] && gid=0 local str="${mode} ${uid} ${gid}" - [ "${ftype}" == "invalid" ] && return 0 - [ "${location}" == "${srcdir}" ] && return 0 + [ "${ftype}" = "invalid" ] && return 0 + [ "${location}" = "${srcdir}" ] && return 0 case "${ftype}" in "file") @@ -135,7 +135,7 @@ parse() { str="${ftype} ${name} ${str} ${dev} ${maj} ${min}" ;; "slink") - local target=`field 11 $(LC_ALL=C ls -l "${location}")` + local target=`readlink "${location}"` str="${ftype} ${name} ${target} ${str}" ;; *) @@ -192,7 +192,7 @@ input_file() { if [ -f "$1" ]; then ${dep_list}header "$1" is_cpio="$(echo "$1" | sed 's/^.*\.cpio\(\..*\)\?/cpio/')" - if [ $2 -eq 0 -a ${is_cpio} == "cpio" ]; then + 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" @@ -202,8 +202,9 @@ input_file() { print_mtime "$1" >> ${output} cat "$1" >> ${output} else + echo "$1 \\" cat "$1" | while read type dir file perm ; do - if [ "$type" == "file" ]; then + if [ "$type" = "file" ]; then echo "$file \\"; fi done @@ -225,19 +226,39 @@ cpio_list= output="/dev/stdout" output_file="" is_cpio_compressed= +compr="gzip -n -9 -f" arg="$1" case "$arg" in "-l") # files included in initramfs - used by kbuild dep_list="list_" - echo "deps_initramfs := \\" + echo "deps_initramfs := $0 \\" 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 "$output_file" | grep -q "\.gz$" \ + && [ -x "`which gzip 2> /dev/null`" ] \ + && compr="gzip -n -9 -f" + echo "$output_file" | grep -q "\.bz2$" \ + && [ -x "`which bzip2 2> /dev/null`" ] \ + && compr="bzip2 -9 -f" + echo "$output_file" | grep -q "\.lzma$" \ + && [ -x "`which lzma 2> /dev/null`" ] \ + && compr="lzma -9 -f" + echo "$output_file" | grep -q "\.xz$" \ + && [ -x "`which xz 2> /dev/null`" ] \ + && compr="xz --check=crc32 --lzma2=dict=1MiB" + echo "$output_file" | grep -q "\.lzo$" \ + && [ -x "`which lzop 2> /dev/null`" ] \ + && compr="lzop -9 -f" + echo "$output_file" | grep -q "\.lz4$" \ + && [ -x "`which lz4 2> /dev/null`" ] \ + && compr="lz4 -l -9 -f" + echo "$output_file" | grep -q "\.cpio$" && compr="cat" shift ;; esac @@ -274,12 +295,19 @@ while [ $# -gt 0 ]; do esac done -# If output_file is set we will generate cpio archive and gzip it -# we are carefull to delete tmp files +# If output_file is set we will generate cpio archive and compress it +# we are careful to delete tmp files if [ ! -z ${output_file} ]; then if [ -z ${cpio_file} ]; then + timestamp= + if test -n "$KBUILD_BUILD_TIMESTAMP"; then + timestamp="$(date -d"$KBUILD_BUILD_TIMESTAMP" +%s || :)" + if test -n "$timestamp"; then + timestamp="-t $timestamp" + fi + fi cpio_tfile="$(mktemp ${TMPDIR:-/tmp}/cpiofile.XXXXXX)" - usr/gen_init_cpio ${cpio_list} > ${cpio_tfile} + usr/gen_init_cpio $timestamp ${cpio_list} > ${cpio_tfile} else cpio_tfile=${cpio_file} fi @@ -287,7 +315,8 @@ 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}) \ + || (rm -f ${output_file} ; false) fi [ -z ${cpio_file} ] && rm ${cpio_tfile} fi |