diff options
Diffstat (limited to 'scripts/mkcompile_h')
| -rwxr-xr-x | scripts/mkcompile_h | 68 |
1 files changed, 43 insertions, 25 deletions
diff --git a/scripts/mkcompile_h b/scripts/mkcompile_h index d7b8a384b4a..6fdc97ef602 100755 --- a/scripts/mkcompile_h +++ b/scripts/mkcompile_h @@ -1,64 +1,82 @@ +#!/bin/sh + TARGET=$1 ARCH=$2 SMP=$3 PREEMPT=$4 CC=$5 +vecho() { [ "${quiet}" = "silent_" ] || echo "$@" ; } + # If compile.h exists already and we don't own autoconf.h # (i.e. we're not the same user who did make *config), don't # modify compile.h # So "sudo make install" won't change the "compiled by <user>" # do "compiled by root" -if [ -r $TARGET -a ! -O include/linux/autoconf.h ]; then - echo " SKIPPED $TARGET" +if [ -r $TARGET -a ! -O include/generated/autoconf.h ]; then + vecho " SKIPPED $TARGET" exit 0 fi # Do not expand names set -f -if [ -r .version ]; then - VERSION=`cat .version` +# Fix the language to get consistent output +LC_ALL=C +export LC_ALL + +if [ -z "$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=$KBUILD_BUILD_TIMESTAMP +fi +if test -z "$KBUILD_BUILD_USER"; then + LINUX_COMPILE_BY=$(whoami | sed 's/\\/\\\\/') +else + LINUX_COMPILE_BY=$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="#$VERSION" CONFIG_FLAGS="" if [ -n "$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 UTS_LEN=64 -UTS_TRUNCATE="sed -e s/\(.\{1,$UTS_LEN\}\).*/\1/" +UTS_TRUNCATE="cut -b -$UTS_LEN" # Generate a temporary compile.h ( echo /\* This file is auto generated, version $VERSION \*/ if [ -n "$CONFIG_FLAGS" ] ; then echo "/* $CONFIG_FLAGS */"; fi - + echo \#define UTS_MACHINE \"$ARCH\" 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_BY \"`whoami`\" - echo \#define LINUX_COMPILE_HOST \"`hostname | $UTS_TRUNCATE`\" - - if [ -x /bin/dnsdomainname ]; then - echo \#define LINUX_COMPILE_DOMAIN \"`dnsdomainname | $UTS_TRUNCATE`\" - elif [ -x /bin/domainname ]; then - echo \#define LINUX_COMPILE_DOMAIN \"`domainname | $UTS_TRUNCATE`\" - else - echo \#define LINUX_COMPILE_DOMAIN - fi + echo \#define LINUX_COMPILE_BY \"`echo $LINUX_COMPILE_BY | $UTS_TRUNCATE`\" + echo \#define LINUX_COMPILE_HOST \"`echo $LINUX_COMPILE_HOST | $UTS_TRUNCATE`\" - echo \#define LINUX_COMPILER \"`$CC -v 2>&1 | tail -n 1`\" + echo \#define LINUX_COMPILER \"`$CC -v 2>&1 | grep ' version '`\" ) > .tmpcompile # Only replace the real compile.h if the new one is different, @@ -66,17 +84,17 @@ UTS_TRUNCATE="sed -e s/\(.\{1,$UTS_LEN\}\).*/\1/" # recompilations. # We don't consider the file changed if only the date/time changed. # A kernel config change will increase the generation number, thus -# causing compile.h to be updated (including date/time) due to the +# causing compile.h to be updated (including date/time) due to the # changed comment in the # first line. if [ -r $TARGET ] && \ - grep -v 'UTS_VERSION\|LINUX_COMPILE_TIME' $TARGET > .tmpver.1 && \ - grep -v 'UTS_VERSION\|LINUX_COMPILE_TIME' .tmpcompile > .tmpver.2 && \ + grep -v 'UTS_VERSION' $TARGET > .tmpver.1 && \ + grep -v 'UTS_VERSION' .tmpcompile > .tmpver.2 && \ cmp -s .tmpver.1 .tmpver.2; then rm -f .tmpcompile else - echo " UPD $TARGET" + vecho " UPD $TARGET" mv -f .tmpcompile $TARGET fi rm -f .tmpver.1 .tmpver.2 |