77 строки
2.2 KiB
Perl
Executable File
77 строки
2.2 KiB
Perl
Executable File
#! /usr/bin/env perl
|
|
# SPDX-License-Identifier: GPL-2.0
|
|
#
|
|
# checkversion finds uses of all macros in <linux/version.h>
|
|
# where the source files do not #include <linux/version.h>; or cases
|
|
# of including <linux/version.h> where it is not needed.
|
|
# Copyright (C) 2003, Randy Dunlap <rdunlap@infradead.org>
|
|
|
|
use strict;
|
|
|
|
$| = 1;
|
|
|
|
my $debugging;
|
|
|
|
foreach my $file (@ARGV) {
|
|
next if $file =~ "include/generated/uapi/linux/version\.h";
|
|
next if $file =~ "usr/include/linux/version\.h";
|
|
# Open this file.
|
|
open( my $f, '<', $file )
|
|
or die "Can't open $file: $!\n";
|
|
|
|
# Initialize variables.
|
|
my ($fInComment, $fInString, $fUseVersion);
|
|
my $iLinuxVersion = 0;
|
|
|
|
while (<$f>) {
|
|
# Strip comments.
|
|
$fInComment && (s+^.*?\*/+ +o ? ($fInComment = 0) : next);
|
|
m+/\*+o && (s+/\*.*?\*/+ +go, (s+/\*.*$+ +o && ($fInComment = 1)));
|
|
|
|
# Pick up definitions.
|
|
if ( m/^\s*#/o ) {
|
|
$iLinuxVersion = $. if m/^\s*#\s*include\s*"linux\/version\.h"/o;
|
|
}
|
|
|
|
# Strip strings.
|
|
$fInString && (s+^.*?"+ +o ? ($fInString = 0) : next);
|
|
m+"+o && (s+".*?"+ +go, (s+".*$+ +o && ($fInString = 1)));
|
|
|
|
# Pick up definitions.
|
|
if ( m/^\s*#/o ) {
|
|
$iLinuxVersion = $. if m/^\s*#\s*include\s*<linux\/version\.h>/o;
|
|
}
|
|
|
|
# Look for uses: LINUX_VERSION_CODE, KERNEL_VERSION,
|
|
# LINUX_VERSION_MAJOR, LINUX_VERSION_PATCHLEVEL, LINUX_VERSION_SUBLEVEL
|
|
if (($_ =~ /LINUX_VERSION_CODE/) || ($_ =~ /\WKERNEL_VERSION/) ||
|
|
($_ =~ /LINUX_VERSION_MAJOR/) || ($_ =~ /LINUX_VERSION_PATCHLEVEL/) ||
|
|
($_ =~ /LINUX_VERSION_SUBLEVEL/)) {
|
|
$fUseVersion = 1;
|
|
last if $iLinuxVersion;
|
|
}
|
|
}
|
|
|
|
# Report used version IDs without include?
|
|
if ($fUseVersion && ! $iLinuxVersion) {
|
|
print "$file: $.: need linux/version.h\n";
|
|
}
|
|
|
|
# Report superfluous includes.
|
|
if ($iLinuxVersion && ! $fUseVersion) {
|
|
print "$file: $iLinuxVersion linux/version.h not needed.\n";
|
|
}
|
|
|
|
# debug: report OK results:
|
|
if ($debugging) {
|
|
if ($iLinuxVersion && $fUseVersion) {
|
|
print "$file: version use is OK ($iLinuxVersion)\n";
|
|
}
|
|
if (! $iLinuxVersion && ! $fUseVersion) {
|
|
print "$file: version use is OK (none)\n";
|
|
}
|
|
}
|
|
|
|
close($f);
|
|
}
|