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Commit 6be51ffc authored by Steven Rostedt's avatar Steven Rostedt Committed by Steven Rostedt
Browse files

kconfig: have extract-ikconfig read ELF files 



It would be nice to use extract-ikconfig to find the congfig.gz
in either vmlinux (not vmlinuz) or configs.ko.

This patch changes the script to also be able to read ELF files directly.

[ Impact: find config.gz in vmlinux and configs.ko ]

Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
parent fd3132d5

scripts/extract-ikconfig

+10 −0
Original line number Diff line number Diff line
@@ -59,6 +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`

[ "$?" != "0" ] && off="-1"
@@ -73,6 +75,14 @@ elif [ "$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."