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| author | Andy Whitcroft <apw@canonical.com> | 2009-01-06 14:41:27 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-06 15:59:17 -0800 |
| commit | 4635f4fbaf51555509c747eed02a7e7a580ae1e1 (patch) | |
| tree | d3d9d3d26b1c7d302c1200110c5d51b5340183f6 /scripts | |
| parent | 8b1b33786b06a222cf3430b1bf942a3681532104 (diff) | |
| download | linux-3.10-4635f4fbaf51555509c747eed02a7e7a580ae1e1.tar.gz linux-3.10-4635f4fbaf51555509c747eed02a7e7a580ae1e1.tar.bz2 linux-3.10-4635f4fbaf51555509c747eed02a7e7a580ae1e1.zip | |
checkpatch: track #ifdef/#else/#endif when tracking blocks
When picking up a complete statement or block for analysis we cannot
simply track open/close/etc parenthesis we must take into account
preprocessor section boundaries.
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'scripts')
| -rwxr-xr-x | scripts/checkpatch.pl | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index 67b0c9faa32..906624c0e9e 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -405,6 +405,7 @@ sub ctx_statement_block { my $type = ''; my $level = 0; + my @stack = ([$type, $level]); my $p; my $c; my $len = 0; @@ -436,6 +437,16 @@ sub ctx_statement_block { $remainder = substr($blk, $off); #warn "CSB: c<$c> type<$type> level<$level> remainder<$remainder> coff_set<$coff_set>\n"; + + # Handle nested #if/#else. + if ($remainder =~ /^#\s*(?:ifndef|ifdef|if)\s/) { + push(@stack, [ $type, $level ]); + } elsif ($remainder =~ /^#\s*(?:else|elif)\b/) { + ($type, $level) = @{$stack[$#stack - 1]}; + } elsif ($remainder =~ /^#\s*endif\b/) { + ($type, $level) = @{pop(@stack)}; + } + # Statement ends at the ';' or a close '}' at the # outermost level. if ($level == 0 && $c eq ';') { @@ -582,11 +593,22 @@ sub ctx_block_get { my @res = (); my $level = 0; + my @stack = ($level); for ($line = $start; $remain > 0; $line++) { next if ($rawlines[$line] =~ /^-/); $remain--; $blk .= $rawlines[$line]; + + # Handle nested #if/#else. + if ($rawlines[$line] =~ /^.\s*#\s*(?:ifndef|ifdef|if)\s/) { + push(@stack, $level); + } elsif ($rawlines[$line] =~ /^.\s*#\s*(?:else|elif)\b/) { + $level = $stack[$#stack - 1]; + } elsif ($rawlines[$line] =~ /^.\s*#\s*endif\b/) { + $level = pop(@stack); + } + foreach my $c (split(//, $rawlines[$line])) { ##print "C<$c>L<$level><$open$close>O<$off>\n"; if ($off > 0) { |