Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

#! /usr/bin/perl

#

# checkversion find uses of LINUX_VERSION_CODE or KERNEL_VERSION

# without including <linux/version.h>, or cases of

# including <linux/version.h> that don't need it.

# Copyright (C) 2003, Randy Dunlap <rdunlap@xenotime.net>

$| = 1;

my $debugging = 0;

foreach $file (@ARGV)

{

    # Open this file.

    open(FILE, $file) || die "Can't open $file: $!\n";

    # Initialize variables.

    my $fInComment   = 0;

    my $fInString    = 0;

    my $fUseVersion   = 0;

    my $iLinuxVersion = 0;

    LINE: while ( <FILE> )

    {

        # 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, UTS_RELEASE

        if (($_ =~ /LINUX_VERSION_CODE/) || ($_ =~ /\WKERNEL_VERSION/)) {

            $fUseVersion = 1;

            last LINE 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(FILE);

}