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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /scripts/checkconfig.pl
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'scripts/checkconfig.pl')
-rwxr-xr-xscripts/checkconfig.pl65
1 files changed, 65 insertions, 0 deletions
diff --git a/scripts/checkconfig.pl b/scripts/checkconfig.pl
new file mode 100755
index 000000000000..ca1f231b15a6
--- /dev/null
+++ b/scripts/checkconfig.pl
@@ -0,0 +1,65 @@
+#! /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);
+}

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