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-rw-r--r--sys/tools/embed_mfs.sh41
1 files changed, 32 insertions, 9 deletions
diff --git a/sys/tools/embed_mfs.sh b/sys/tools/embed_mfs.sh
index fc6bacb470d1..c4fea153d561 100644
--- a/sys/tools/embed_mfs.sh
+++ b/sys/tools/embed_mfs.sh
@@ -27,10 +27,10 @@
#
# $FreeBSD$
#
-# Embed the MFS image into the kernel body (expects space reserved via
-# MD_ROOT_SIZE)
+# Embed an MFS image into the kernel body or the loader body (expects space
+# reserved via MD_ROOT_SIZE (kernel) or MD_IMAGE_SIZE (loader))
#
-# $1: kernel filename
+# $1: kernel or loader filename
# $2: MFS image filename
#
@@ -47,16 +47,39 @@ mfs_size=`stat -f '%z' $2 2> /dev/null`
# If we can't determine MFS image size - bail.
[ -z ${mfs_size} ] && echo "Can't determine MFS image size" && exit 1
-sec_info=`elfdump -c $1 2> /dev/null | grep -A 5 -E "sh_name: oldmfs$"`
-# If we can't find the mfs section within the given kernel - bail.
-[ -z "${sec_info}" ] && echo "Can't locate mfs section within $1" && exit 1
+err_no_mfs="Can't locate mfs section within "
-sec_size=`echo "${sec_info}" | awk '/sh_size/ {print $2}' 2> /dev/null`
-sec_start=`echo "${sec_info}" | awk '/sh_offset/ {print $2}' 2> /dev/null`
+if [ `file -b $1 | grep -q '^ELF ..-bit .SB executable'` ]; then
+
+ sec_info=`elfdump -c $1 2> /dev/null | grep -A 5 -E "sh_name: oldmfs$"`
+ # If we can't find the mfs section within the given kernel - bail.
+ [ -z "${sec_info}" ] && echo "${err_no_mfs} $1" && exit 1
+
+ sec_size=`echo "${sec_info}" | awk '/sh_size/ {print $2}' 2>/dev/null`
+ sec_start=`echo "${sec_info}" | \
+ awk '/sh_offset/ {print $2}' 2>/dev/null`
+
+else
+
+ #try to find start byte of MFS start flag otherwise - bail.
+ sec_start=`strings -at d $1 | grep "MFS Filesystem goes here"` || \
+ { echo "${err_no_mfs} $1"; exit 1; }
+ sec_start=`echo ${sec_start} | awk '{print $1}'`
+
+ #try to find start byte of MFS end flag otherwise - bail.
+ sec_end=`strings -at d $1 | \
+ grep "MFS Filesystem had better STOP here"` || \
+ { echo "${err_no_mfs} $1"; exit 1; }
+ sec_end=`echo ${sec_end} | awk '{print $1}'`
+
+ #calculate MFS section size
+ sec_size=`expr ${sec_end} - ${sec_start}`
+
+fi
# If the mfs section size is smaller than the mfs image - bail.
[ ${sec_size} -lt ${mfs_size} ] && echo "MFS image too large" && exit 1
# Dump the mfs image into the mfs section
dd if=$2 ibs=8192 of=$1 obs=${sec_start} oseek=1 conv=notrunc 2> /dev/null && \
- echo "MFS image embedded into kernel" && exit 0
+ echo "MFS image embedded into $1" && exit 0