diff options
Diffstat (limited to 'usr/gen_initramfs.sh')
| -rwxr-xr-x | usr/gen_initramfs.sh | 108 |
1 files changed, 46 insertions, 62 deletions
diff --git a/usr/gen_initramfs.sh b/usr/gen_initramfs.sh index 68b6ddfd5f96..49a4e22147b5 100755 --- a/usr/gen_initramfs.sh +++ b/usr/gen_initramfs.sh @@ -15,9 +15,10 @@ set -e usage() { cat << EOF Usage: -$0 [-o <file>] [-u <uid>] [-g <gid>] {-d | <cpio_source>} ... +$0 [-o <file>] [-l <dep_list>] [-u <uid>] [-g <gid>] {-d | <cpio_source>} ... -o <file> Create compressed initramfs file named <file> using gen_init_cpio and compressor depending on the extension + -l <dep_list> Create dependency list named <dep_list> -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. @@ -42,11 +43,6 @@ field() { shift $1 ; echo $1 } -list_default_initramfs() { - # echo usr/kinit/kinit - : -} - default_initramfs() { cat <<-EOF >> ${output} # This is a very simple, default initramfs @@ -81,10 +77,6 @@ filetype() { return 0 } -list_print_mtime() { - : -} - print_mtime() { local my_mtime="0" @@ -97,10 +89,10 @@ print_mtime() { } list_parse() { - if [ -L "$1" ]; then + if [ -z "$dep_list" -o -L "$1" ]; then return fi - echo "$1" | sed 's/:/\\:/g; s/$/ \\/' + echo "$1" | sed 's/:/\\:/g; s/$/ \\/' >> $dep_list } # for each file print a line in following format @@ -161,28 +153,25 @@ unknown_option() { exit 1 } -list_header() { - : -} - header() { printf "\n#####################\n# $1\n" >> ${output} } # process one directory (incl sub-directories) dir_filelist() { - ${dep_list}header "$1" + header "$1" srcdir=$(echo "$1" | sed -e 's://*:/:g') dirlist=$(find "${srcdir}" -printf "%p %m %U %G\n" | LANG=C sort) # If $dirlist is only one line, then the directory is empty if [ "$(echo "${dirlist}" | wc -l)" -gt 1 ]; then - ${dep_list}print_mtime "$1" + print_mtime "$1" echo "${dirlist}" | \ while read x; do - ${dep_list}parse ${x} + list_parse $x + parse $x done fi } @@ -193,22 +182,21 @@ dir_filelist() { input_file() { source="$1" if [ -f "$1" ]; then - ${dep_list}header "$1" + header "$1" is_cpio="$(echo "$1" | sed 's/^.*\.cpio\(\..*\)\{0,1\}/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 "$1" + [ -n "$dep_list" ] && echo "$1" >> $dep_list return 0 fi - if [ -z ${dep_list} ]; then - print_mtime "$1" >> ${output} - cat "$1" >> ${output} - else - echo "$1 \\" + print_mtime "$1" >> ${output} + cat "$1" >> ${output} + if [ -n "$dep_list" ]; then + echo "$1 \\" >> $dep_list cat "$1" | while read type dir file perm ; do if [ "$type" = "file" ]; then - echo "$file \\"; + echo "$file \\" >> $dep_list fi done fi @@ -231,44 +219,40 @@ 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 := \\" - shift - ;; - "-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 while [ $# -gt 0 ]; do arg="$1" shift case "$arg" in + "-l") # files included in initramfs - used by kbuild + dep_list="$1" + echo "deps_initramfs := \\" > $dep_list + shift + ;; + "-o") # generate compressed cpio image named $1 + 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 + ;; "-u") # map $1 to uid=0 (root) root_uid="$1" [ "$root_uid" = "-1" ] && root_uid=$(id -u || echo 0) @@ -280,7 +264,7 @@ while [ $# -gt 0 ]; do shift ;; "-d") # display default initramfs list - ${dep_list}default_initramfs + default_initramfs ;; "-h") usage |