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📁 ..
📄 Kbuild.include(10.25 KB)
📄 Lindent(460 B)
📄 Makefile(1.39 KB)
📄 Makefile.asm-generic(684 B)
📄 Makefile.build(15.91 KB)
📄 Makefile.clean(3.23 KB)
📄 Makefile.fwinst(2.03 KB)
📄 Makefile.headersinst(4.72 KB)
📄 Makefile.help(68 B)
📄 Makefile.host(6.46 KB)
📄 Makefile.lib(13.57 KB)
📄 Makefile.modbuiltin(1.78 KB)
📄 Makefile.modinst(1.16 KB)
📄 Makefile.modpost(5.15 KB)
📄 Makefile.modsign(1003 B)
📄 asn1_compiler(22.39 KB)
📄 asn1_compiler.c(33.97 KB)
📁 basic
📄 bloat-o-meter(1.75 KB)
📄 bootgraph.pl(5.62 KB)
📄 checkincludes.pl(1.77 KB)
📄 checkkconfigsymbols.sh(1.82 KB)
📄 checkpatch.pl(101.34 KB)
📄 checkstack.pl(5.33 KB)
📄 checksyscalls.sh(5.64 KB)
📄 checkversion.pl(1.86 KB)
📄 cleanfile(3.41 KB)
📄 cleanpatch(5.01 KB)
📄 coccicheck(3.78 KB)
📁 coccinelle
📄 config(3.65 KB)
📄 conmakehash(10.22 KB)
📄 conmakehash.c(6 KB)
📄 decodecode(2.15 KB)
📄 depmod.sh(1.67 KB)
📄 diffconfig(3.54 KB)
📄 docproc.c(13.69 KB)
📁 dtc
📄 export_report.pl(4.53 KB)
📄 extract-ikconfig(1.64 KB)
📄 extract-vmlinux(1.6 KB)
📄 gcc-goto.sh(465 B)
📄 gcc-version.sh(822 B)
📄 gcc-x86_32-has-stack-protector.sh(184 B)
📄 gcc-x86_64-has-stack-protector.sh(200 B)
📄 gen_initramfs_list.sh(7.38 KB)
📁 genksyms
📄 get_maintainer.pl(54.11 KB)
📄 gfp-translate(1.71 KB)
📄 headerdep.pl(3.46 KB)
📄 headers.sh(530 B)
📄 headers_check.pl(3.6 KB)
📄 headers_install.sh(1.28 KB)
📄 kallsyms(14.46 KB)
📄 kallsyms.c(16.52 KB)
📁 kconfig
📄 kernel-doc(71.41 KB)
📁 ksymoops
📄 link-vmlinux.sh(5.65 KB)
📄 makelst(773 B)
📄 markup_oops.pl(8.08 KB)
📄 mkcompile_h(2.46 KB)
📄 mkmakefile(1.17 KB)
📄 mksysmap(1.32 KB)
📄 mkuboot.sh(379 B)
📄 mkversion(74 B)
📁 mod
📄 module-common.lds(757 B)
📄 modules.order(0 B)
📄 namespace.pl(13 KB)
📁 package
📄 patch-kernel(9.91 KB)
📄 pnmtologo(14.24 KB)
📄 pnmtologo.c(11.91 KB)
📄 profile2linkerlist.pl(375 B)
📄 recordmcount(18.34 KB)
📄 recordmcount.c(12.4 KB)
📄 recordmcount.h(16.34 KB)
📄 recordmcount.pl(17.5 KB)
📁 rt-tester
📁 selinux
📄 setlocalversion(3.94 KB)
📄 show_delta(2.98 KB)
📄 sign-file(12.16 KB)
📄 sortextable(14.24 KB)
📄 sortextable.c(7.41 KB)
📄 sortextable.h(5.48 KB)
📄 tags.sh(9.87 KB)
📁 tracing
📄 unifdef(26.39 KB)
📄 unifdef.c(34.8 KB)
📄 ver_linux(3.09 KB)
📄 xz_wrap.sh(562 B)

Editing: headerdep.pl

#! /usr/bin/perl
#
# Detect cycles in the header file dependency graph
# Vegard Nossum <vegardno@ifi.uio.no>
#

use strict;
use warnings;

use Getopt::Long;

my $opt_all;
my @opt_include;
my $opt_graph;

&Getopt::Long::Configure(qw(bundling pass_through));
&GetOptions(
	help	=> \&help,
	version	=> \&version,

all	=> \$opt_all,
	"I=s"	=> \@opt_include,
	graph	=> \$opt_graph,
);

push @opt_include, 'include';
my %deps = ();
my %linenos = ();

my @headers = grep { strip($_) } @ARGV;

parse_all(@headers);

if($opt_graph) {
	graph();
} else {
	detect_cycles(@headers);
}

sub help {
	print "Usage: $0 [options] file...\n";
	print "\n";
	print "Options:\n";
	print "  --all\n";
	print "  --graph\n";
	print "\n";
	print "  -I includedir\n";
	print "\n";
	print "To make nice graphs, try:\n";
	print "  $0 --graph include/linux/kernel.h | dot -Tpng -o graph.png\n";
	exit;
}

sub version {
	print "headerdep version 2\n";
	exit;
}

# Get a file name that is relative to our include paths
sub strip {
	my $filename = shift;

for my $i (@opt_include) {
		my $stripped = $filename;
		$stripped =~ s/^$i\///;

return $stripped if $stripped ne $filename;
	}

return $filename;
}

# Search for the file name in the list of include paths
sub search {
	my $filename = shift;
	return $filename if -f $filename;

for my $i (@opt_include) {
		my $path = "$i/$filename";
		return $path if -f $path;
	}
	return;
}

sub parse_all {
	# Parse all the headers.
	my @queue = @_;
	while(@queue) {
		my $header = pop @queue;
		next if exists $deps{$header};

$deps{$header} = [] unless exists $deps{$header};

my $path = search($header);
		next unless $path;

open(my $file, '<', $path) or die($!);
		chomp(my @lines = <$file>);
		close($file);

for my $i (0 .. $#lines) {
			my $line = $lines[$i];
			if(my($dep) = ($line =~ m/^#\s*include\s*<(.*?)>/)) {
				push @queue, $dep;
				push @{$deps{$header}}, [$i + 1, $dep];
			}
		}
	}
}

sub print_cycle {
	# $cycle[n] includes $cycle[n + 1];
	# $cycle[-1] will be the culprit
	my $cycle = shift;

# Adjust the line numbers
	for my $i (0 .. $#$cycle - 1) {
		$cycle->[$i]->[0] = $cycle->[$i + 1]->[0];
	}
	$cycle->[-1]->[0] = 0;

my $first = shift @$cycle;
	my $last = pop @$cycle;

my $msg = "In file included";
	printf "%s from %s,\n", $msg, $last->[1] if defined $last;

for my $header (reverse @$cycle) {
		printf "%s from %s:%d%s\n",
			" " x length $msg,
			$header->[1], $header->[0],
			$header->[1] eq $last->[1] ? ' <-- here' : '';
	}

printf "%s:%d: warning: recursive header inclusion\n",
		$first->[1], $first->[0];
}

# Find and print the smallest cycle starting in the specified node.
sub detect_cycles {
	my @queue = map { [[0, $_]] } @_;
	while(@queue) {
		my $top = pop @queue;
		my $name = $top->[-1]->[1];

for my $dep (@{$deps{$name}}) {
			my $chain = [@$top, [$dep->[0], $dep->[1]]];

# If the dep already exists in the chain, we have a
			# cycle...
			if(grep { $_->[1] eq $dep->[1] } @$top) {
				print_cycle($chain);
				next if $opt_all;
				return;
			}

push @queue, $chain;
		}
	}
}

sub mangle {
	$_ = shift;
	s/\//__/g;
	s/\./_/g;
	s/-/_/g;
	$_;
}

# Output dependency graph in GraphViz language.
sub graph {
	print "digraph {\n";

print "\t/* vertices */\n";
	for my $header (keys %deps) {
		printf "\t%s [label=\"%s\"];\n",
			mangle($header), $header;
	}

print "\n";

print "\t/* edges */\n";
	for my $header (keys %deps) {
		for my $dep (@{$deps{$header}}) {
			printf "\t%s -> %s;\n",
				mangle($header), mangle($dep->[1]);
		}
	}

print "}\n";
}

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Editing: headerdep.pl

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