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#!/usr/bin/perl
#
# headers_check.pl execute a number of trivial consistency checks
#
# Usage: headers_check.pl dir [files...]
# dir: dir to look for included files
# arch: architecture
# files: list of files to check
#
# The script reads the supplied files line by line and:
#
# 1) for each include statement it checks if the
# included file actually exists.
# Only include files located in asm* and linux* are checked.
# The rest are assumed to be system include files.
#
# 2) TODO: check for leaked CONFIG_ symbols
use strict;
use warnings;
my ($dir, $arch, @files) = @ARGV;
my $ret = 0;
my $line;
my $lineno = 0;
my $filename;
foreach my $file (@files) {
$filename = $file;
open(my $fh, '<', "$filename") or die "$filename: $!\n";
$lineno = 0;
while ($line = <$fh>) {
$lineno++;
check_include();
}
close $fh;
}
exit $ret;
sub check_include
{
if ($line =~ m/^\s*#\s*include\s+<((asm|linux).*)>/) {
my $inc = $1;
my $found;
$found = stat($dir . "/" . $inc);
if (!$found) {
$inc =~ s#asm/#asm-$arch/#;
$found = stat($dir . "/" . $inc);
}
if (!$found) {
printf STDERR "$filename:$lineno: included file '$inc' is not exported\n";
$ret = 1;
}
}
}
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