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linux-sg2042
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kbuild: check for leaked CONFIG_ symbols to userspace 

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
This commit is contained in:
Sam Ravnborg 2008-12-27 19:52:20 +01:00
parent 46b8af50ba
commit 7e557a2509
1 changed files with 10 additions and 1 deletions
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11
scripts/headers_check.pl
View File

@ -16,7 +16,7 @@
#
# 2) It is checked that prototypes does not use "extern"
#
# 3) TODO: check for leaked CONFIG_ symbols
# 3) Check for leaked CONFIG_ symbols
use strict;
@ -36,6 +36,7 @@ foreach my $file (@files) {
$lineno++;
check_include();
check_prototypes();
check_config();
}
close FH;
}
@ -64,3 +65,11 @@ sub check_prototypes
printf STDERR "$filename:$lineno: extern's make no sense in userspace\n";
}
}
sub check_config
{
if ($line =~ m/[^a-zA-Z0-9_]+CONFIG_([a-zA-Z0-9]+)[^a-zA-Z0-9]/) {
printf STDERR "$filename:$lineno: leaks CONFIG_$1 to userspace where it is not valid\n";
}
}