X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=scripts%2Fextract-ikconfig;h=de233ff43c1c3e73b0b93cf04bcbb9105db16570;hb=cd8c20b650f49354722b8cc1f03320b004815a0a;hp=8187e6f0dc2fe6da060f99f9980dbf90707c02cf;hpb=008accbbae6b2f18c2039d563f28d46ff4388d36;p=safe%2Fjmp%2Flinux-2.6

diff --git a/scripts/extract-ikconfig b/scripts/extract-ikconfig
index 8187e6f..de233ff 100755
--- a/scripts/extract-ikconfig
+++ b/scripts/extract-ikconfig
@@ -8,8 +8,8 @@ test -e $binoffset || cc -o $binoffset ./scripts/binoffset.c || exit 1
 
 IKCFG_ST="0x49 0x4b 0x43 0x46 0x47 0x5f 0x53 0x54"
 IKCFG_ED="0x49 0x4b 0x43 0x46 0x47 0x5f 0x45 0x44"
-function dump_config {
-    typeset file="$1"
+dump_config() {
+    file="$1"
 
     start=`$binoffset $file $IKCFG_ST 2>/dev/null`
     [ "$?" != "0" ] && start="-1"
@@ -17,9 +17,13 @@ function dump_config {
 	return
     fi
     end=`$binoffset $file $IKCFG_ED 2>/dev/null`
+    [ "$?" != "0" ] && end="-1"
+    if [ "$end" -eq "-1" ]; then
+	return
+    fi
 
-    let start="$start + 8"
-    let size="$end - $start"
+    start=`expr $start + 8`
+    size=`expr $end - $start`
 
     dd if="$file" ibs=1 skip="$start" count="$size" 2>/dev/null | zcat
 
@@ -55,6 +59,8 @@ dump_config "$image"
 GZHDR1="0x1f 0x8b 0x08 0x00"
 GZHDR2="0x1f 0x8b 0x08 0x08"
 
+ELFHDR="0x7f 0x45 0x4c 0x46"
+
 # vmlinux.gz: Check for a compressed images
 off=`$binoffset "$image" $GZHDR1 2>/dev/null`
 [ "$?" != "0" ] && off="-1"
@@ -69,6 +75,14 @@ elif [ "$off" -ne "-1" ]; then
 	(dd ibs="$off" skip=1 count=0 && dd bs=512k) <"$image" 2>/dev/null | \
 		zcat >"$TMPFILE"
 	dump_config "$TMPFILE"
+
+# check if this is simply an ELF file
+else
+	off=`$binoffset "$image" $ELFHDR 2>/dev/null`
+	[ "$?" != "0" ] && off="-1"
+	if [ "$off" -eq "0" ]; then
+		dump_config "$image"
+	fi
 fi
 
 echo "ERROR: Unable to extract kernel configuration information."