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| author | Sam Ravnborg <sam@ravnborg.org> | 2008-12-27 19:52:20 +0100 |
|---|---|---|
| committer | Sam Ravnborg <sam@ravnborg.org> | 2009-01-02 20:43:23 +0100 |
| commit | 7e557a2509f9e1477c10295b74e29e4e93fa2392 (patch) | |
| tree | 7378b0bf583980ccf2e06b4bb00c6204b2c0d4ad | |
| parent | headers_check.pl: disallow extern's (diff) | |
| download | linux-7e557a2509f9e1477c10295b74e29e4e93fa2392.tar.xz linux-7e557a2509f9e1477c10295b74e29e4e93fa2392.zip | |
kbuild: check for leaked CONFIG_ symbols to userspace
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
| -rw-r--r-- | scripts/headers_check.pl | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/scripts/headers_check.pl b/scripts/headers_check.pl index 5bdd9753007a..72924a7fcf1e 100644 --- a/scripts/headers_check.pl +++ b/scripts/headers_check.pl @@ -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"; + } +} + |