diff options
| author | Steven Rostedt <srostedt@redhat.com> | 2009-04-30 12:22:20 -0400 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2009-08-18 22:00:18 -0400 |
| commit | 6be51ffc1791b72d11cef9bb0a578fe8c5d64c6a (patch) | |
| tree | 65076b5e6ebe9abc5574d8d45cc8b9e965c7b8c7 /scripts/extract-ikconfig | |
| parent | fd3132d5815bf72aeec7d5ad87161b4831f8e48c (diff) | |
| download | lwn-6be51ffc1791b72d11cef9bb0a578fe8c5d64c6a.tar.gz lwn-6be51ffc1791b72d11cef9bb0a578fe8c5d64c6a.zip | |
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: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'scripts/extract-ikconfig')
| -rwxr-xr-x | scripts/extract-ikconfig | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/scripts/extract-ikconfig b/scripts/extract-ikconfig index 42d6bcefb400..de233ff43c1c 100755 --- a/scripts/extract-ikconfig +++ b/scripts/extract-ikconfig @@ -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." |