Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | TARGET=$1 |
2 | ARCH=$2 | |
3 | SMP=$3 | |
bd5bdd87 SR |
4 | PREEMPT=$4 |
5 | CC=$5 | |
1da177e4 LT |
6 | |
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 | |
9 | # modify compile.h | |
10 | # So "sudo make install" won't change the "compiled by <user>" | |
11 | # do "compiled by root" | |
12 | ||
13 | if [ -r $TARGET -a ! -O include/linux/autoconf.h ]; then | |
14 | echo " SKIPPED $TARGET" | |
15 | exit 0 | |
16 | fi | |
17 | ||
18 | # Do not expand names | |
19 | set -f | |
20 | ||
21 | if [ -r .version ]; then | |
22 | VERSION=`cat .version` | |
23 | else | |
24 | VERSION=0 | |
25 | echo 0 > .version | |
26 | fi | |
27 | ||
28 | ||
29 | UTS_VERSION="#$VERSION" | |
bd5bdd87 SR |
30 | CONFIG_FLAGS="" |
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`" | |
1da177e4 LT |
34 | |
35 | # Truncate to maximum length | |
36 | ||
37 | UTS_LEN=64 | |
38 | UTS_TRUNCATE="sed -e s/\(.\{1,$UTS_LEN\}\).*/\1/" | |
39 | ||
40 | # Generate a temporary compile.h | |
41 | ||
42 | ( echo /\* This file is auto generated, version $VERSION \*/ | |
bd5bdd87 SR |
43 | if [ -n "$CONFIG_FLAGS" ] ; then echo "/* $CONFIG_FLAGS */"; fi |
44 | ||
1da177e4 LT |
45 | echo \#define UTS_MACHINE \"$ARCH\" |
46 | ||
47 | echo \#define UTS_VERSION \"`echo $UTS_VERSION | $UTS_TRUNCATE`\" | |
48 | ||
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`\" | |
52 | ||
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 | $UTS_TRUNCATE`\" | |
57 | else | |
58 | echo \#define LINUX_COMPILE_DOMAIN | |
59 | fi | |
60 | ||
61 | echo \#define LINUX_COMPILER \"`$CC -v 2>&1 | tail -n 1`\" | |
62 | ) > .tmpcompile | |
63 | ||
64 | # Only replace the real compile.h if the new one is different, | |
65 | # in order to preserve the timestamp and avoid unnecessary | |
66 | # recompilations. | |
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 | |
71 | # first line. | |
72 | ||
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 | |
77 | rm -f .tmpcompile | |
78 | else | |
79 | echo " UPD $TARGET" | |
80 | mv -f .tmpcompile $TARGET | |
81 | fi | |
82 | rm -f .tmpver.1 .tmpver.2 |