mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-05 10:04:12 +08:00
66 lines
1.7 KiB
Perl
66 lines
1.7 KiB
Perl
|
#! /usr/bin/perl
|
||
|
|
#
|
||
|
|
# checkconfig: find uses of CONFIG_* names without matching definitions.
|
||
|
|
# Copyright abandoned, 1998, Michael Elizabeth Chastain <mailto:mec@shout.net>.
|
||
|
|
|
||
|
|
use integer;
|
||
|
|
|
||
|
|
$| = 1;
|
||
|
|
|
||
|
|
foreach $file (@ARGV)
|
||
|
|
{
|
||
|
|
# Open this file.
|
||
|
|
open(FILE, $file) || die "Can't open $file: $!\n";
|
||
|
|
|
||
|
|
# Initialize variables.
|
||
|
|
my $fInComment = 0;
|
||
|
|
my $fInString = 0;
|
||
|
|
my $fUseConfig = 0;
|
||
|
|
my $iLinuxConfig = 0;
|
||
|
|
my %configList = ();
|
||
|
|
|
||
|
|
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 )
|
||
|
|
{
|
||
|
|
$iLinuxConfig = $. if m/^\s*#\s*include\s*"linux\/config\.h"/o;
|
||
|
|
$configList{uc $1} = 1 if m/^\s*#\s*include\s*"config\/(\S*)\.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 )
|
||
|
|
{
|
||
|
|
$iLinuxConfig = $. if m/^\s*#\s*include\s*<linux\/config\.h>/o;
|
||
|
|
$configList{uc $1} = 1 if m/^\s*#\s*include\s*<config\/(\S*)\.h>/o;
|
||
|
|
$configList{$1} = 1 if m/^\s*#\s*define\s+CONFIG_(\w*)/o;
|
||
|
|
$configList{$1} = 1 if m/^\s*#\s*undef\s+CONFIG_(\w*)/o;
|
||
|
|
}
|
||
|
|
|
||
|
|
# Look for usages.
|
||
|
|
next unless m/CONFIG_/o;
|
||
|
|
WORD: while ( m/\bCONFIG_(\w+)/og )
|
||
|
|
{
|
||
|
|
$fUseConfig = 1;
|
||
|
|
last LINE if $iLinuxConfig;
|
||
|
|
next WORD if exists $configList{$1};
|
||
|
|
print "$file: $.: need CONFIG_$1.\n";
|
||
|
|
$configList{$1} = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
# Report superfluous includes.
|
||
|
|
if ( $iLinuxConfig && ! $fUseConfig )
|
||
|
|
{ print "$file: $iLinuxConfig: linux/config.h not needed.\n"; }
|
||
|
|
|
||
|
|
close(FILE);
|
||
|
|
}
|