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authorSam Ravnborg <sam@neptun.ravnborg.org>2007-04-01 21:49:27 +0200
committerSam Ravnborg <sam@ravnborg.org>2007-05-02 20:58:09 +0200
commit87c94bfb8ad354fb43d2caf870d7ca0b3f98dab3 (patch)
tree796c87da12f564e5ecb5a0c1d57ea94c9dd7604a /scripts/mkcompile_h
parentb72e53f8bbbec8421316220291d8a8002a5562ba (diff)
downloadlinux-linaro-stable-87c94bfb8ad354fb43d2caf870d7ca0b3f98dab3.tar.gz
kbuild: override build timestamp & version
Introduce KBUILD_BUILD_VERSION to make it possible to override kernel build version during build time. Introduce KBUILD_BUILD_TIMESTAMP to make it possible to override kernel build timestamp during build time. But variables are useful mainly by distros that want to pass info from an SCM when building the kernel. Timestamp could be last checkin date for a file etc. The idea came from Olaf Hering <olaf@aepfle.de> Cc: Olaf Hering <olaf@aepfle.de> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Diffstat (limited to 'scripts/mkcompile_h')
-rwxr-xr-xscripts/mkcompile_h27
1 files changed, 20 insertions, 7 deletions
diff --git a/scripts/mkcompile_h b/scripts/mkcompile_h
index 82d0af46f0ef..a8740df07b09 100755
--- a/scripts/mkcompile_h
+++ b/scripts/mkcompile_h
@@ -18,19 +18,32 @@ fi
# Do not expand names
set -f
-if [ -r .version ]; then
- VERSION=`cat .version`
+# Fix the language to get consistent output
+LC_ALL=C
+export LC_ALL
+
+if [ -z "$KBUILD_BUILD_VERSION" ]; then
+ if [ -r .version ]; then
+ VERSION=`cat .version`
+ else
+ VERSION=0
+ echo 0 > .version
+ fi
else
- VERSION=0
- echo 0 > .version
+ VERSION=$KBUILD_BUILD_VERSION
fi
+if [ -z "$KBUILD_BUILD_TIMESTAMP" ]; then
+ TIMESTAMP=`date`
+else
+ TIMESTAMP=$KBUILD_BUILD_TIMESTAMP
+fi
UTS_VERSION="#$VERSION"
CONFIG_FLAGS=""
if [ -n "$SMP" ] ; then CONFIG_FLAGS="SMP"; fi
if [ -n "$PREEMPT" ] ; then CONFIG_FLAGS="$CONFIG_FLAGS PREEMPT"; fi
-UTS_VERSION="$UTS_VERSION $CONFIG_FLAGS `LC_ALL=C LANG=C date`"
+UTS_VERSION="$UTS_VERSION $CONFIG_FLAGS $TIMESTAMP"
# Truncate to maximum length
@@ -46,7 +59,7 @@ UTS_TRUNCATE="sed -e s/\(.\{1,$UTS_LEN\}\).*/\1/"
echo \#define UTS_VERSION \"`echo $UTS_VERSION | $UTS_TRUNCATE`\"
- echo \#define LINUX_COMPILE_TIME \"`LC_ALL=C LANG=C date +%T`\"
+ echo \#define LINUX_COMPILE_TIME \"`date +%T`\"
echo \#define LINUX_COMPILE_BY \"`whoami`\"
echo \#define LINUX_COMPILE_HOST \"`hostname | $UTS_TRUNCATE`\"
@@ -58,7 +71,7 @@ UTS_TRUNCATE="sed -e s/\(.\{1,$UTS_LEN\}\).*/\1/"
echo \#define LINUX_COMPILE_DOMAIN
fi
- echo \#define LINUX_COMPILER \"`LC_ALL=C LANG=C $CC -v 2>&1 | tail -n 1`\"
+ echo \#define LINUX_COMPILER \"`$CC -v 2>&1 | tail -n 1`\"
) > .tmpcompile
# Only replace the real compile.h if the new one is different,