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1da177e Linux-2.6.12-rc2
Linus Torvalds authored
1 #! /usr/bin/perl
2 #
63104ee kbuild: introduce utsrelease.h
Sam Ravnborg authored
3 # checkversion find uses of LINUX_VERSION_CODE or KERNEL_VERSION
4 # without including <linux/version.h>, or cases of
1da177e Linux-2.6.12-rc2
Linus Torvalds authored
5 # including <linux/version.h> that don't need it.
f4b09eb @AdrianBunk update the email address of Randy Dunlap
AdrianBunk authored
6 # Copyright (C) 2003, Randy Dunlap <rdunlap@xenotime.net>
1da177e Linux-2.6.12-rc2
Linus Torvalds authored
7
a208868 checkversion: perl cleanup
Stephen Hemminger authored
8 use strict;
9
1da177e Linux-2.6.12-rc2
Linus Torvalds authored
10 $| = 1;
11
a208868 checkversion: perl cleanup
Stephen Hemminger authored
12 my $debugging;
1da177e Linux-2.6.12-rc2
Linus Torvalds authored
13
a208868 checkversion: perl cleanup
Stephen Hemminger authored
14 foreach my $file (@ARGV) {
6088e9f kbuild: don't warn about include/linux/version.h not including itself
Peter Foley authored
15 next if $file =~ "include/linux/version\.h";
1da177e Linux-2.6.12-rc2
Linus Torvalds authored
16 # Open this file.
a208868 checkversion: perl cleanup
Stephen Hemminger authored
17 open( my $f, '<', $file )
18 or die "Can't open $file: $!\n";
1da177e Linux-2.6.12-rc2
Linus Torvalds authored
19
20 # Initialize variables.
a208868 checkversion: perl cleanup
Stephen Hemminger authored
21 my ($fInComment, $fInString, $fUseVersion);
1da177e Linux-2.6.12-rc2
Linus Torvalds authored
22 my $iLinuxVersion = 0;
23
a208868 checkversion: perl cleanup
Stephen Hemminger authored
24 while (<$f>) {
1da177e Linux-2.6.12-rc2
Linus Torvalds authored
25 # Strip comments.
26 $fInComment && (s+^.*?\*/+ +o ? ($fInComment = 0) : next);
27 m+/\*+o && (s+/\*.*?\*/+ +go, (s+/\*.*$+ +o && ($fInComment = 1)));
28
29 # Pick up definitions.
30 if ( m/^\s*#/o ) {
31 $iLinuxVersion = $. if m/^\s*#\s*include\s*"linux\/version\.h"/o;
32 }
33
34 # Strip strings.
35 $fInString && (s+^.*?"+ +o ? ($fInString = 0) : next);
36 m+"+o && (s+".*?"+ +go, (s+".*$+ +o && ($fInString = 1)));
37
38 # Pick up definitions.
39 if ( m/^\s*#/o ) {
40 $iLinuxVersion = $. if m/^\s*#\s*include\s*<linux\/version\.h>/o;
41 }
42
43 # Look for uses: LINUX_VERSION_CODE, KERNEL_VERSION, UTS_RELEASE
63104ee kbuild: introduce utsrelease.h
Sam Ravnborg authored
44 if (($_ =~ /LINUX_VERSION_CODE/) || ($_ =~ /\WKERNEL_VERSION/)) {
1da177e Linux-2.6.12-rc2
Linus Torvalds authored
45 $fUseVersion = 1;
a208868 checkversion: perl cleanup
Stephen Hemminger authored
46 last if $iLinuxVersion;
47 }
1da177e Linux-2.6.12-rc2
Linus Torvalds authored
48 }
49
50 # Report used version IDs without include?
51 if ($fUseVersion && ! $iLinuxVersion) {
52 print "$file: $.: need linux/version.h\n";
53 }
54
55 # Report superfluous includes.
56 if ($iLinuxVersion && ! $fUseVersion) {
57 print "$file: $iLinuxVersion linux/version.h not needed.\n";
58 }
59
60 # debug: report OK results:
61 if ($debugging) {
62 if ($iLinuxVersion && $fUseVersion) {
63 print "$file: version use is OK ($iLinuxVersion)\n";
64 }
65 if (! $iLinuxVersion && ! $fUseVersion) {
66 print "$file: version use is OK (none)\n";
67 }
68 }
69
a208868 checkversion: perl cleanup
Stephen Hemminger authored
70 close($f);
1da177e Linux-2.6.12-rc2
Linus Torvalds authored
71 }
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