7 # If compile.h exists already and we don't own autoconf.h
8 # (i.e. we're not the same user who did make *config), don't
10 # So "sudo make install" won't change the "compiled by <user>"
11 # do "compiled by root"
13 if [ -r $TARGET -a ! -O include/linux/autoconf.h ]; then
14 echo " SKIPPED $TARGET"
21 if [ -r .version ]; then
22 VERSION=`cat .version`
29 UTS_VERSION="#$VERSION"
31 if [ -n "$SMP" ] ; then CONFIG_FLAGS="SMP"; fi
32 if [ -n "$PREEMPT" ] ; then CONFIG_FLAGS="$CONFIG_FLAGS PREEMPT"; fi
33 UTS_VERSION="$UTS_VERSION $CONFIG_FLAGS `LC_ALL=C LANG=C date`"
35 # Truncate to maximum length
38 UTS_TRUNCATE="sed -e s/\(.\{1,$UTS_LEN\}\).*/\1/"
40 # Generate a temporary compile.h
42 ( echo /\* This file is auto generated, version $VERSION \*/
43 if [ -n "$CONFIG_FLAGS" ] ; then echo "/* $CONFIG_FLAGS */"; fi
45 echo \#define UTS_MACHINE \"$ARCH\"
47 echo \#define UTS_VERSION \"`echo $UTS_VERSION | $UTS_TRUNCATE`\"
49 echo \#define LINUX_COMPILE_TIME \"`LC_ALL=C LANG=C date +%T`\"
50 echo \#define LINUX_COMPILE_BY \"`whoami`\"
51 echo \#define LINUX_COMPILE_HOST \"`hostname | $UTS_TRUNCATE`\"
53 if [ -x /bin/dnsdomainname ]; then
54 echo \#define LINUX_COMPILE_DOMAIN \"`dnsdomainname | $UTS_TRUNCATE`\"
55 elif [ -x /bin/domainname ]; then
56 echo \#define LINUX_COMPILE_DOMAIN \"`domainname | $UTS_TRUNCATE`\"
58 echo \#define LINUX_COMPILE_DOMAIN
61 echo \#define LINUX_COMPILER \"`$CC -v 2>&1 | tail -n 1`\"
64 # Only replace the real compile.h if the new one is different,
65 # in order to preserve the timestamp and avoid unnecessary
67 # We don't consider the file changed if only the date/time changed.
68 # A kernel config change will increase the generation number, thus
69 # causing compile.h to be updated (including date/time) due to the
70 # changed comment in the
73 if [ -r $TARGET ] && \
74 grep -v 'UTS_VERSION\|LINUX_COMPILE_TIME' $TARGET > .tmpver.1 && \
75 grep -v 'UTS_VERSION\|LINUX_COMPILE_TIME' .tmpcompile > .tmpver.2 && \
76 cmp -s .tmpver.1 .tmpver.2; then
80 mv -f .tmpcompile $TARGET
82 rm -f .tmpver.1 .tmpver.2