9 vecho
() { [ "${quiet}" = "silent_" ] ||
echo "$@" ; }
11 # If compile.h exists already and we don't own autoconf.h
12 # (i.e. we're not the same user who did make *config), don't
14 # So "sudo make install" won't change the "compiled by <user>"
15 # do "compiled by root"
17 if [ -r $TARGET -a ! -O include
/linux
/autoconf.h
]; then
18 vecho
" SKIPPED $TARGET"
25 # Fix the language to get consistent output
29 if [ -z "$KBUILD_BUILD_VERSION" ]; then
30 if [ -r .version
]; then
31 VERSION
=`cat .version`
37 VERSION
=$KBUILD_BUILD_VERSION
40 if [ -z "$KBUILD_BUILD_TIMESTAMP" ]; then
43 TIMESTAMP
=$KBUILD_BUILD_TIMESTAMP
46 UTS_VERSION
="#$VERSION"
48 if [ -n "$SMP" ] ; then CONFIG_FLAGS
="SMP"; fi
49 if [ -n "$PREEMPT" ] ; then CONFIG_FLAGS
="$CONFIG_FLAGS PREEMPT"; fi
50 UTS_VERSION
="$UTS_VERSION $CONFIG_FLAGS $TIMESTAMP"
52 # Truncate to maximum length
55 UTS_TRUNCATE
="cut -b -$UTS_LEN"
57 # Generate a temporary compile.h
59 ( echo /\
* This
file is auto generated
, version
$VERSION \
*/
60 if [ -n "$CONFIG_FLAGS" ] ; then echo "/* $CONFIG_FLAGS */"; fi
62 echo \
#define UTS_MACHINE \"$ARCH\"
64 echo \
#define UTS_VERSION \"`echo $UTS_VERSION | $UTS_TRUNCATE`\"
66 echo \
#define LINUX_COMPILE_TIME \"`date +%T`\"
67 echo \
#define LINUX_COMPILE_BY \"`whoami`\"
68 echo \
#define LINUX_COMPILE_HOST \"`hostname | $UTS_TRUNCATE`\"
70 if [ -x /bin
/dnsdomainname
]; then
71 domain
=`dnsdomainname 2> /dev/null`
72 elif [ -x /bin
/domainname
]; then
73 domain
=`domainname 2> /dev/null`
76 if [ -n "$domain" ]; then
77 echo \
#define LINUX_COMPILE_DOMAIN \"`echo $domain | $UTS_TRUNCATE`\"
79 echo \
#define LINUX_COMPILE_DOMAIN
82 echo \
#define LINUX_COMPILER \"`$CC -v 2>&1 | tail -n 1`\"
85 # Only replace the real compile.h if the new one is different,
86 # in order to preserve the timestamp and avoid unnecessary
88 # We don't consider the file changed if only the date/time changed.
89 # A kernel config change will increase the generation number, thus
90 # causing compile.h to be updated (including date/time) due to the
91 # changed comment in the
94 if [ -r $TARGET ] && \
95 grep -v 'UTS_VERSION\|LINUX_COMPILE_TIME' $TARGET > .tmpver
.1 && \
96 grep -v 'UTS_VERSION\|LINUX_COMPILE_TIME' .tmpcompile
> .tmpver
.2 && \
97 cmp -s .tmpver
.1 .tmpver
.2; then
101 mv -f .tmpcompile
$TARGET
103 rm -f .tmpver
.1 .tmpver
.2
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