net: wireless: bcmdhd: cleanup Kconfig/Make
[linux-2.6.git] / scripts / gen_initramfs_list.sh
index 684fb9c..b482f16 100644 (file)
@@ -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 +226,27 @@ 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 "$output_file" | grep -q "\.gz$" && compr="gzip -n -9 -f"
+               echo "$output_file" | grep -q "\.bz2$" && compr="bzip2 -9 -f"
+               echo "$output_file" | grep -q "\.lzma$" && compr="lzma -9 -f"
+               echo "$output_file" | grep -q "\.xz$" && \
+                               compr="xz --check=crc32 --lzma2=dict=1MiB"
+               echo "$output_file" | grep -q "\.lzo$" && compr="lzop -9 -f"
+               echo "$output_file" | grep -q "\.cpio$" && compr="cat"
                shift
                ;;
 esac
@@ -274,12 +283,19 @@ 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 +303,8 @@ 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