writing one file per option. It updates only the files for options
that have changed.
- mkdep.c no longer generates warning messages for missing or unneeded
- <linux/config.h> lines. The new top-level target 'make checkconfig'
- checks for these problems.
-
Flag Dependencies
Martin Von Loewis contributed another feature to this patch:
+++ /dev/null
-#! /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);
-}