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--- /dev/null
+#!/bin/sh
+
+CP="/bin/cp"
+LN="/bin/ln"
+SED="/bin/sed"
+MKDIR="/bin/mkdir"
+DIRNAME="/usr/bin/dirname"
+LD_LINUX="/lib/ld-linux.so.3"
+
+INIT="/usr/lib/initrd/init.sh"
+
+INITRD_ROOT=/mnt/initrd
+
+OBJECTS_SPECIFY_LIST="/usr/lib/initrd/initrd-file.list"
+
+#-----------------------------------------------------------------------------
+# show_help()
+#-----------------------------------------------------------------------------
+show_help() {
+ echo
+ echo "usage: `basename $0`"
+ echo "make initrd image to $INITRD_ROOT"
+ echo
+}
+
+#-----------------------------------------------------------------------------
+# Prepare parent directory
+#-----------------------------------------------------------------------------
+mkdir_p_parent() {
+ dst_dir=`"$DIRNAME" "$1"`
+ if [ ! -d "$dst_dir" -a ! -L "$dst_dir" ]; then
+ "$MKDIR" -p "$dst_dir"
+ fi
+}
+
+#-----------------------------------------------------------------------------
+# Copy content to root of mounted image
+#-----------------------------------------------------------------------------
+do_copy() {
+ src=$1
+ dst="$INITRD_ROOT/$src"
+
+ if [ ! -e "$src" -o -e "$dst" ]; then
+ return
+ fi
+
+ mkdir_p_parent $dst
+
+ "$CP" -f "$src" "$dst"
+}
+
+#-----------------------------------------------------------------------------
+# Get dependency libraries
+#-----------------------------------------------------------------------------
+get_dep_libs() {
+ "$LD_LINUX" --list $1 | "$SED" -r 's|^[^/]+([^ \(]+).*$|\1|'
+}
+
+#-----------------------------------------------------------------------------
+# Gather initrd objects
+#-----------------------------------------------------------------------------
+get_initrd_objects() {
+ source "${OBJECTS_SPECIFY_LIST}"
+
+ SYS_SKELDIR=$(echo "$SYS_SKELDIR" | sort | uniq)
+ DIR_LINKS=$(echo "$DIR_LINKS" | sort | uniq)
+ PROGS=$(echo "$PROGS" | sort | uniq)
+ SYM_LINKS=$(echo "$SYM_LINKS" | sort | uniq)
+}
+
+#-----------------------------------------------------------------------------
+# Prepare directory objects
+#-----------------------------------------------------------------------------
+prepare_directory_objects() {
+ for dir in $@; do
+ "$MKDIR" -p "$INITRD_ROOT$dir"
+ done
+}
+
+#-----------------------------------------------------------------------------
+# Copy program objects
+#-----------------------------------------------------------------------------
+program_objects() {
+ for content in $@; do
+ do_copy $content
+
+ DEP_LIBS=$(get_dep_libs $content)
+ for lib in $DEP_LIBS; do
+ do_copy $lib
+ done
+ done
+}
+
+#-----------------------------------------------------------------------------
+# Copy symlink objects
+#-----------------------------------------------------------------------------
+symlink_objects() {
+ for i in $@; do
+ if [ "z$i" == "z" ]; then
+ continue
+ fi
+
+ link=${i%:*}
+ target=${i#*:}
+ mkdir_p_parent "$INITRD_ROOT$link"
+ "$LN" -s "$target" "$INITRD_ROOT$link"
+ done
+}
+
+#-----------------------------------------------------------------------------
+# Copy content
+#-----------------------------------------------------------------------------
+make_initrd() {
+ echo "copy initrd objects to $INITRD_ROOT"
+ get_initrd_objects
+
+ prepare_directory_objects $SYS_SKELDIR
+ symlink_objects $DIR_LINKS
+ program_objects $PROGS
+ symlink_objects $SYM_LINKS
+
+ "$CP" -f "$INIT" "$INITRD_ROOT/sbin/init"
+}
+
+#-----------------------------------------------------------------------------
+# Check given parameter is mount point
+#-----------------------------------------------------------------------------
+check_mount_point() {
+ grep " $1 " /etc/mtab > /dev/null
+ if [ $? -ne 0 ]; then
+ echo "$1 is not a mount point"
+ exit 0
+ fi
+}
+
+#-----------------------------------------------------------------------------
+# Main
+#-----------------------------------------------------------------------------
+
+if [ $# -ge 1 ]; then
+ echo "Error: too many arguments were given."
+ show_help >&2
+ exit 1
+fi
+
+check_mount_point $INITRD_ROOT
+make_initrd
projects / platform / core / system / initrd.git / commitdiff