[PATCH 07/34] kbuild: Allow to override LINUX_COMPILE_BY and LINUX_COMPILE_HOST macros

Michal Marek
2011-04-05T14:59:35Z

Make it possible to override the user@host string displayed during boot
and in /proc/version by the environment variables KBUILD_BUILD_USER and
KBUILD_BUILD_HOST. Several distributions patch scripts/mkcompile_h to
achieve this, so let's provide an official way.

Signed-off-by: Michal Marek <mmarek@suse.cz>
---
Documentation/kbuild/kbuild.txt | 12 ++++++++++++
scripts/mkcompile_h | 14 ++++++++++++--
2 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/Documentation/kbuild/kbuild.txt b/Documentation/kbuild/kbuild.txt
index 4a99031..27d7928 100644
--- a/Documentation/kbuild/kbuild.txt
+++ b/Documentation/kbuild/kbuild.txt
@@ -196,3 +196,15 @@ to be included in the databases, separated by blank space. E.g.:
To get all available archs you can also specify all. E.g.:

$ make ALLSOURCE_ARCHS=all tags
+
+KBUILD_BUILD_TIMESTAMP
+--------------------------------------------------
+Setting this to a date string overrides the timestamp used in the
+UTS_VERSION definition (uname -v in the running kernel). The default value
+is the output of the date command at one point during build.
+
+KBUILD_BUILD_USER, KBUILD_BUILD_HOST
+--------------------------------------------------
+These two variables allow to override the user@host string displayed during
+boot and in /proc/version. The default value is the output of the commands
+whoami and host, respectively.
diff --git a/scripts/mkcompile_h b/scripts/mkcompile_h
index 82416a8..82c4e1d 100755
--- a/scripts/mkcompile_h
+++ b/scripts/mkcompile_h
@@ -42,6 +42,16 @@ if [ -z "$KBUILD_BUILD_TIMESTAMP" ]; then
else
TIMESTAMP=$KBUILD_BUILD_TIMESTAMP
fi
+if test -z "$KBUILD_BUILD_USER"; then
+ LINUX_COMPILE_BY=`whoami`
+else
+ LINUX_COMPILE_BY=$KBUILD_BUILD_USER
+fi
+if test -z "$KBUILD_BUILD_HOST"; then
+ LINUX_COMPILE_HOST=`hostname`
+else
+ LINUX_COMPILE_HOST=$KBUILD_BUILD_HOST
+fi

UTS_VERSION="#$VERSION"
CONFIG_FLAGS=""
@@ -63,8 +73,8 @@ UTS_TRUNCATE="cut -b -$UTS_LEN"

echo \#define UTS_VERSION \"`echo $UTS_VERSION | $UTS_TRUNCATE`\"

- echo \#define LINUX_COMPILE_BY \"`whoami`\"
- echo \#define LINUX_COMPILE_HOST \"`hostname | $UTS_TRUNCATE`\"
+ echo \#define LINUX_COMPILE_BY \"`echo $KBUILD_BUILD_USER | $UTS_TRUNCATE`\"
+ echo \#define LINUX_COMPILE_HOST \"`echo $KBUILD_BUILD_HOST | $UTS_TRUNCATE`\"

echo \#define LINUX_COMPILER \"`$CC -v 2>&1 | tail -n 1`\"
) > .tmpcompile
--
1.7.4.1