summaryrefslogtreecommitdiffstats
path: root/scripts/metadata.pl
blob: 246520bf789b4e00f48b180127877910a25cb9d8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
#!/usr/bin/env perl
use FindBin;
use lib "$FindBin::Bin";
use strict;
use metadata;

my %board;

sub confstr($) {
	my $conf = shift;
	$conf =~ tr#/\.\-/#___#;
	return $conf;
}

sub parse_target_metadata() {
	my $file = shift @ARGV;
	my ($target, @target, $profile);
	my %target;

	open FILE, "<$file" or do {
		warn "Can't open file '$file': $!\n";
		return;
	};
	while (<FILE>) {
		chomp;
		/^Target:\s*(.+)\s*$/ and do {
			my $name = $1;
			$target = {
				id => $name,
				board => $name,
				boardconf => confstr($name),
				conf => confstr($name),
				profiles => [],
				features => [],
				depends => [],
				subtargets => []
			};
			push @target, $target;
			$target{$name} = $target;
			if ($name =~ /([^\/]+)\/([^\/]+)/) {
				push @{$target{$1}->{subtargets}}, $2;
				$target->{board} = $1;
				$target->{boardconf} = confstr($1);
				$target->{subtarget} = 1;
				$target->{parent} = $target{$1};
			}
		};
		/^Target-Name:\s*(.+)\s*$/ and $target->{name} = $1;
		/^Target-Path:\s*(.+)\s*$/ and $target->{path} = $1;
		/^Target-Arch:\s*(.+)\s*$/ and $target->{arch} = $1;
		/^Target-Arch-Packages:\s*(.+)\s*$/ and $target->{arch_packages} = $1;
		/^Target-Features:\s*(.+)\s*$/ and $target->{features} = [ split(/\s+/, $1) ];
		/^Target-Depends:\s*(.+)\s*$/ and $target->{depends} = [ split(/\s+/, $1) ];
		/^Target-Description:/ and $target->{desc} = get_multiline(*FILE);
		/^Target-Optimization:\s*(.+)\s*$/ and $target->{cflags} = $1;
		/^Linux-Version:\s*(.+)\s*$/ and $target->{version} = $1;
		/^Linux-Release:\s*(.+)\s*$/ and $target->{release} = $1;
		/^Linux-Kernel-Arch:\s*(.+)\s*$/ and $target->{karch} = $1;
		/^Default-Packages:\s*(.+)\s*$/ and $target->{packages} = [ split(/\s+/, $1) ];
		/^Target-Profile:\s*(.+)\s*$/ and do {
			$profile = {
				id => $1,
				name => $1,
				packages => []
			};
			push @{$target->{profiles}}, $profile;
		};
		/^Target-Profile-Name:\s*(.+)\s*$/ and $profile->{name} = $1;
		/^Target-Profile-Packages:\s*(.*)\s*$/ and $profile->{packages} = [ split(/\s+/, $1) ];
		/^Target-Profile-Description:\s*(.*)\s*/ and $profile->{desc} = get_multiline(*FILE);
		/^Target-Profile-Config:/ and $profile->{config} = get_multiline(*FILE, "\t");
		/^Target-Profile-Kconfig:/ and $profile->{kconfig} = 1;
	}
	close FILE;
	foreach my $target (@target) {
		next if @{$target->{subtargets}} > 0;
		@{$target->{profiles}} > 0 or $target->{profiles} = [
			{
				id => 'Default',
				name => 'Default',
				packages => []
			}
		];
	}
	return @target;
}

sub gen_kconfig_overrides() {
	my %config;
	my %kconfig;
	my $package;
	my $pkginfo = shift @ARGV;
	my $cfgfile = shift @ARGV;

	# parameter 2: build system config
	open FILE, "<$cfgfile" or return;
	while (<FILE>) {
		/^(CONFIG_.+?)=(.+)$/ and $config{$1} = 1;
	}
	close FILE;

	# parameter 1: package metadata
	open FILE, "<$pkginfo" or return;
	while (<FILE>) {
		/^Package:\s*(.+?)\s*$/ and $package = $1;
		/^Kernel-Config:\s*(.+?)\s*$/ and do {
			my @config = split /\s+/, $1;
			foreach my $config (@config) {
				my $val = 'm';
				my $override;
				if ($config =~ /^(.+?)=(.+)$/) {
					$config = $1;
					$override = 1;
					$val = $2;
				}
				if ($config{"CONFIG_PACKAGE_$package"} and ($config ne 'n')) {
					$kconfig{$config} = $val;
				} elsif (!$override) {
					$kconfig{$config} or $kconfig{$config} = 'n';
				}
			}
		};
	};
	close FILE;

	foreach my $kconfig (sort keys %kconfig) {
		if ($kconfig{$kconfig} eq 'n') {
			print "# $kconfig is not set\n";
		} else {
			print "$kconfig=$kconfig{$kconfig}\n";
		}
	}
}

sub merge_package_lists($$) {
	my $list1 = shift;
	my $list2 = shift;
	my @l = ();
	my %pkgs;

	foreach my $pkg (@$list1, @$list2) {
		$pkgs{$pkg} = 1;
	}
	foreach my $pkg (keys %pkgs) {
		push @l, $pkg unless ($pkg =~ /^-/ or $pkgs{"-$pkg"});
	}
	return sort(@l);
}

sub target_config_features(@) {
	my $ret;

	while ($_ = shift @_) {
		/broken/ and $ret .= "\tdepends BROKEN\n";
		/audio/ and $ret .= "\tselect AUDIO_SUPPORT\n";
		/display/ and $ret .= "\tselect DISPLAY_SUPPORT\n";
		/gpio/ and $ret .= "\tselect GPIO_SUPPORT\n";
		/pci/ and $ret .= "\tselect PCI_SUPPORT\n";
		/pcie/ and $ret .= "\tselect PCIE_SUPPORT\n";
		/usb/ and $ret .= "\tselect USB_SUPPORT\n";
		/usbgadget/ and $ret .= "\tselect USB_GADGET_SUPPORT\n";
		/pcmcia/ and $ret .= "\tselect PCMCIA_SUPPORT\n";
		/squashfs/ and $ret .= "\tselect USES_SQUASHFS\n";
		/jffs2/ and $ret .= "\tselect USES_JFFS2\n";
		/ext4/ and $ret .= "\tselect USES_EXT4\n";
		/targz/ and $ret .= "\tselect USES_TARGZ\n";
		/cpiogz/ and $ret .= "\tselect USES_CPIOGZ\n";
		/ubifs/ and $ret .= "\tselect USES_UBIFS\n";
		/fpu/ and $ret .= "\tselect HAS_FPU\n";
		/spe_fpu/ and $ret .= "\tselect HAS_SPE_FPU\n";
		/ramdisk/ and $ret .= "\tselect USES_INITRAMFS\n";
		/powerpc64/ and $ret .= "\tselect powerpc64\n";
		/nommu/ and $ret .= "\tselect NOMMU\n";
	}
	return $ret;
}

sub target_name($) {
	my $target = shift;
	my $parent = $target->{parent};
	if ($parent) {
		return $target->{parent}->{name}." - ".$target->{name};
	} else {
		return $target->{name};
	}
}

sub kver($) {
	my $v = shift;
	$v =~ tr/\./_/;
	if (substr($v,0,2) eq "2_") {
		$v =~ /(\d+_\d+_\d+)(_\d+)?/ and $v = $1;
	} else {
		$v =~ /(\d+_\d+)(_\d+)?/ and $v = $1;
	}
	return $v;
}

sub print_target($) {
	my $target = shift;
	my $features = target_config_features(@{$target->{features}});
	my $help = $target->{desc};
	my $confstr;

	chomp $features;
	$features .= "\n";
	if ($help =~ /\w+/) {
		$help =~ s/^\s*/\t  /mg;
		$help = "\thelp\n$help";
	} else {
		undef $help;
	}

	my $v = kver($target->{version});
	if (@{$target->{subtargets}} == 0) {
	$confstr = <<EOF;
config TARGET_$target->{conf}
	bool "$target->{name}"
	select LINUX_$v
EOF
	}
	else {
		$confstr = <<EOF;
config TARGET_$target->{conf}
	bool "$target->{name}"
EOF
	}
	if ($target->{subtarget}) {
		$confstr .= "\tdepends TARGET_$target->{boardconf}\n";
	}
	if (@{$target->{subtargets}} > 0) {
		$confstr .= "\tselect HAS_SUBTARGETS\n";
	} else {
		$confstr .= $features;
	}

	if ($target->{arch} =~ /\w/) {
		$confstr .= "\tselect $target->{arch}\n";
	}
	foreach my $dep (@{$target->{depends}}) {
		my $mode = "depends";
		my $flags;
		my $name;

		$dep =~ /^([@\+\-]+)(.+)$/;
		$flags = $1;
		$name = $2;

		next if $name =~ /:/;
		$flags =~ /-/ and $mode = "deselect";
		$flags =~ /\+/ and $mode = "select";
		$flags =~ /@/ and $confstr .= "\t$mode $name\n";
	}
	$confstr .= "$help\n\n";
	print $confstr;
}

sub gen_target_config() {
	my @target = parse_target_metadata();
	my %defaults;

	my @target_sort = sort {
		target_name($a) cmp target_name($b);
	} @target;


	print <<EOF;
choice
	prompt "Target System"
	default TARGET_brcm47xx
	reset if !DEVEL
	
EOF

	foreach my $target (@target_sort) {
		next if $target->{subtarget};
		print_target($target);
	}

	print <<EOF;
endchoice

choice
	prompt "Subtarget" if HAS_SUBTARGETS

EOF
	foreach my $target (@target) {
		next unless $target->{subtarget};
		print_target($target);
	}

print <<EOF;
endchoice

choice
	prompt "Target Profile"

EOF

	foreach my $target (@target) {
		my $profiles = $target->{profiles};

		foreach my $profile (@$profiles) {
			print <<EOF;
config TARGET_$target->{conf}_$profile->{id}
	bool "$profile->{name}"
	depends TARGET_$target->{conf}
$profile->{config}
EOF
			$profile->{kconfig} and print "\tselect PROFILE_KCONFIG\n";
			my @pkglist = merge_package_lists($target->{packages}, $profile->{packages});
			foreach my $pkg (@pkglist) {
				print "\tselect DEFAULT_$pkg\n";
				$defaults{$pkg} = 1;
			}
			my $help = $profile->{desc};
			if ($help =~ /\w+/) {
				$help =~ s/^\s*/\t  /mg;
				$help = "\thelp\n$help";
			} else {
				undef $help;
			}
			print "$help\n";
		}
	}

	print <<EOF;
endchoice

config HAS_SUBTARGETS
	bool

config TARGET_BOARD
	string

EOF
	foreach my $target (@target) {
		$target->{subtarget} or	print "\t\tdefault \"".$target->{board}."\" if TARGET_".$target->{conf}."\n";
	}
	print <<EOF;
config TARGET_ARCH_PACKAGES
	string
	
EOF
	foreach my $target (@target) {
		next if @{$target->{subtargets}} > 0;
		print "\t\tdefault \"".($target->{arch_packages} || $target->{board})."\" if TARGET_".$target->{conf}."\n";
	}
	print <<EOF;

config DEFAULT_TARGET_OPTIMIZATION
	string
EOF
	foreach my $target (@target) {
		next if @{$target->{subtargets}} > 0;
		print "\tdefault \"".$target->{cflags}."\" if TARGET_".$target->{conf}."\n";
	}
	print "\tdefault \"-Os -pipe -funit-at-a-time\"\n";

	my %kver;
	foreach my $target (@target) {
		my $v = kver($target->{version});
		next if $kver{$v};
		$kver{$v} = 1;
		print <<EOF;

config LINUX_$v
	bool

EOF
	}
	foreach my $def (sort keys %defaults) {
		print "\tconfig DEFAULT_".$def."\n";
		print "\t\tbool\n\n";
	}
}

my %dep_check;
sub __find_package_dep($$) {
	my $pkg = shift;
	my $name = shift;
	my $deps = ($pkg->{vdepends} or $pkg->{depends});

	return 0 unless defined $deps;
	foreach my $dep (@{$deps}) {
		next if $dep_check{$dep};
		$dep_check{$dep} = 1;
		return 1 if $dep eq $name;
		return 1 if ($package{$dep} and (__find_package_dep($package{$dep},$name) == 1));
	}
	return 0;
}

# wrapper to avoid infinite recursion
sub find_package_dep($$) {
	my $pkg = shift;
	my $name = shift;

	%dep_check = ();
	return __find_package_dep($pkg, $name);
}

sub package_depends($$) {
	my $a = shift;
	my $b = shift;
	my $ret;

	return 0 if ($a->{submenu} ne $b->{submenu});
	if (find_package_dep($a, $b->{name}) == 1) {
		$ret = 1;
	} elsif (find_package_dep($b, $a->{name}) == 1) {
		$ret = -1;
	} else {
		return 0;
	}
	return $ret;
}

sub mconf_depends {
	my $pkgname = shift;
	my $depends = shift;
	my $only_dep = shift;
	my $res;
	my $dep = shift;
	my $seen = shift;
	my $parent_condition = shift;
	$dep or $dep = {};
	$seen or $seen = {};

	$depends or return;
	my @depends = @$depends;
	foreach my $depend (@depends) {
		my $m = "depends";
		my $flags = "";
		$depend =~ s/^([@\+]+)// and $flags = $1;
		my $vdep;
		my $condition = $parent_condition;

		next if $condition eq $depend;
		next if $seen->{"$parent_condition:$depend"};
		$seen->{"$parent_condition:$depend"} = 1;
		if ($depend =~ /^(.+):(.+)$/) {
			if ($1 ne "PACKAGE_$pkgname") {
				if ($condition) {
					$condition = "$condition && $1";
				} else {
					$condition = $1;
				}
			}
			$depend = $2;
		}
		next if $package{$depend} and $package{$depend}->{buildonly};
		if ($vdep = $package{$depend}->{vdepends}) {
			$depend = join("||", map { "PACKAGE_".$_ } @$vdep);
		} else {
			$flags =~ /\+/ and do {
				# Menuconfig will not treat 'select FOO' as a real dependency
				# thus if FOO depends on other config options, these dependencies
				# will not be checked. To fix this, we simply emit all of FOO's
				# depends here as well.
				$package{$depend} and mconf_depends($pkgname, $package{$depend}->{depends}, 1, $dep, $seen, $condition);

				$m = "select";
				next if $only_dep;
			};
			$flags =~ /@/ or $depend = "PACKAGE_$depend";
			if ($condition) {
				if ($m =~ /select/) {
					$depend = "$depend if $condition";
				} else {
					$depend = "!($condition) || $depend";
				}
			}
		}
		$dep->{$depend} =~ /select/ or $dep->{$depend} = $m;
	}
	foreach my $depend (keys %$dep) {
		my $m = $dep->{$depend};
		$res .= "\t\t$m $depend\n";
	}
	return $res;
}

sub print_package_config_category($) {
	my $cat = shift;
	my %menus;
	my %menu_dep;

	return unless $category{$cat};

	print "menu \"$cat\"\n\n";
	my %spkg = %{$category{$cat}};

	foreach my $spkg (sort {uc($a) cmp uc($b)} keys %spkg) {
		foreach my $pkg (@{$spkg{$spkg}}) {
			next if $pkg->{buildonly};
			my $menu = $pkg->{submenu};
			if ($menu) {
				$menu_dep{$menu} or $menu_dep{$menu} = $pkg->{submenudep};
			} else {
				$menu = 'undef';
			}
			$menus{$menu} or $menus{$menu} = [];
			push @{$menus{$menu}}, $pkg;
		}
	}
	my @menus = sort {
		($a eq 'undef' ?  1 : 0) or
		($b eq 'undef' ? -1 : 0) or
		($a cmp $b)
	} keys %menus;

	foreach my $menu (@menus) {
		my @pkgs = sort {
			package_depends($a, $b) or
			($a->{name} cmp $b->{name})
		} @{$menus{$menu}};
		if ($menu ne 'undef') {
			$menu_dep{$menu} and print "if $menu_dep{$menu}\n";
			print "menu \"$menu\"\n";
		}
		foreach my $pkg (@pkgs) {
			my $title = $pkg->{name};
			my $c = (72 - length($pkg->{name}) - length($pkg->{title}));
			if ($c > 0) {
				$title .= ("." x $c). " ". $pkg->{title};
			}
			print "\t";
			$pkg->{menu} and print "menu";
			print "config PACKAGE_".$pkg->{name}."\n";
			print "\t\t".($pkg->{tristate} ? 'tristate' : 'bool')." \"$title\"\n";
			print "\t\tdefault y if DEFAULT_".$pkg->{name}."\n";
			foreach my $default (split /\s*,\s*/, $pkg->{default}) {
				print "\t\tdefault $default\n";
			}
			print mconf_depends($pkg->{name}, $pkg->{depends}, 0);
			print mconf_depends($pkg->{name}, $pkg->{mdepends}, 0);
			print "\t\thelp\n";
			print $pkg->{description};
			print "\n";

			$pkg->{config} and print $pkg->{config}."\n";
		}
		if ($menu ne 'undef') {
			print "endmenu\n";
			$menu_dep{$menu} and print "endif\n";
		}
	}
	print "endmenu\n\n";

	undef $category{$cat};
}

sub print_package_features() {
	keys %features > 0 or return;
	print "menu \"Package features\"\n";
	foreach my $n (keys %features) {
		my @features = sort { $b->{priority} <=> $a->{priority} or $a->{title} cmp $b->{title} } @{$features{$n}};
		print <<EOF;
choice
	prompt "$features[0]->{target_title}"
	default FEATURE_$features[0]->{name}
EOF

		foreach my $feature (@features) {
			print <<EOF;
	config FEATURE_$feature->{name}
		bool "$feature->{title}"
EOF
			$feature->{description} =~ /\w/ and do {
				print "\t\thelp\n".$feature->{description}."\n";
			};
		}
		print "endchoice\n"
	}
	print "endmenu\n\n";
}

sub gen_package_config() {
	parse_package_metadata($ARGV[0]) or exit 1;
	print "menuconfig IMAGEOPT\n\tbool \"Image configuration\"\n\tdefault n\n";
	foreach my $preconfig (keys %preconfig) {
		foreach my $cfg (keys %{$preconfig{$preconfig}}) {
			my $conf = $preconfig{$preconfig}->{$cfg}->{id};
			$conf =~ tr/\.-/__/;
			print <<EOF
	config UCI_PRECONFIG_$conf
		string "$preconfig{$preconfig}->{$cfg}->{label}" if IMAGEOPT
		depends PACKAGE_$preconfig
		default "$preconfig{$preconfig}->{$cfg}->{default}"

EOF
		}
	}
	print "source \"package/*/image-config.in\"\n";
	if (scalar glob "package/feeds/*/*/image-config.in") {
	    print "source \"package/feeds/*/*/image-config.in\"\n";
	}
	print_package_features();
	print_package_config_category 'Base system';
	foreach my $cat (keys %category) {
		print_package_config_category $cat;
	}
}

sub get_conditional_dep($$) {
	my $condition = shift;
	my $depstr = shift;
	if ($condition) {
		if ($condition =~ /^!(.+)/) {
			return "\$(if \$(CONFIG_$1),,$depstr)";
		} else {
			return "\$(if \$(CONFIG_$condition),$depstr)";
		}
	} else {
		return $depstr;
	}
}

sub gen_package_mk() {
	my %conf;
	my %dep;
	my %done;
	my $line;

	parse_package_metadata($ARGV[0]) or exit 1;
	foreach my $name (sort {uc($a) cmp uc($b)} keys %package) {
		my $config;
		my $pkg = $package{$name};
		my @srcdeps;

		next if defined $pkg->{vdepends};

		if ($ENV{SDK}) {
			$conf{$pkg->{src}} or do {
				$config = 'm';
				$conf{$pkg->{src}} = 1;
			};
		} else {
			$config = "\$(CONFIG_PACKAGE_$name)"
		}
		if ($config) {
			$pkg->{buildonly} and $config = "";
			print "package-$config += $pkg->{subdir}$pkg->{src}\n";
			if ($pkg->{variant}) {
				if (!defined($done{$pkg->{src}})) {
					print "\$(curdir)/$pkg->{subdir}$pkg->{src}/default-variant := $pkg->{variant}\n";
				}
				print "\$(curdir)/$pkg->{subdir}$pkg->{src}/variants += \$(if $config,$pkg->{variant})\n"
			}
			$pkg->{prereq} and print "prereq-$config += $pkg->{subdir}$pkg->{src}\n";
		}

		next if $done{$pkg->{src}};
		$done{$pkg->{src}} = 1;

		if (@{$pkg->{buildtypes}} > 0) {
			print "buildtypes-$pkg->{subdir}$pkg->{src} = ".join(' ', @{$pkg->{buildtypes}})."\n";
		}

		foreach my $spkg (@{$srcpackage{$pkg->{src}}}) {
			foreach my $dep (@{$spkg->{depends}}, @{$spkg->{builddepends}}) {
				$dep =~ /@/ or do {
					$dep =~ s/\+//g;
					push @srcdeps, $dep;
				};
			}
		}
		foreach my $type (@{$pkg->{buildtypes}}) {
			my @extra_deps;
			my %deplines;

			next unless $pkg->{"builddepends/$type"};
			foreach my $dep (@{$pkg->{"builddepends/$type"}}) {
				my $suffix = "";
				my $condition;

				if ($dep =~ /^(.+):(.+)/) {
					$condition = $1;
					$dep = $2;
				}
				if ($dep =~ /^(.+)(\/.+)/) {
					$dep = $1;
					$suffix = $2;
				}

				my $idx = "";
				my $pkg_dep = $package{$dep};
				if (defined($pkg_dep) && defined($pkg_dep->{src})) {
					$idx = $pkg_dep->{subdir}.$pkg_dep->{src};
				} elsif (defined($srcpackage{$dep})) {
					$idx = $subdir{$dep}.$dep;
				} else {
					next;
				}
				my $depstr = "\$(curdir)/$idx$suffix/compile";
				my $depline = get_conditional_dep($condition, $depstr);
				if ($depline) {
					$deplines{$depline}++;
				}
			}
			my $depline = join(" ", sort keys %deplines);
			if ($depline) {
				$line .= "\$(curdir)/".$pkg->{subdir}."$pkg->{src}/$type/compile += $depline\n";
			}
		}

		my $hasdeps = 0;
		my %deplines;
		foreach my $deps (@srcdeps) {
			my $idx;
			my $condition;
			my $prefix = "";
			my $suffix = "";

			if ($deps =~ /^(.+):(.+)/) {
				$condition = $1;
				$deps = $2;
			}
			if ($deps =~ /^(.+)(\/.+)/) {
				$deps = $1;
				$suffix = $2;
			}

			my $pkg_dep = $package{$deps};
			my @deps;

			if ($pkg_dep->{vdepends}) {
				@deps = @{$pkg_dep->{vdepends}};
			} else {
				@deps = ($deps);
			}

			foreach my $dep (@deps) {
				$pkg_dep = $package{$deps};
				if (defined $pkg_dep->{src}) {
					($pkg->{src} ne $pkg_dep->{src}.$suffix) and $idx = $pkg_dep->{subdir}.$pkg_dep->{src};
				} elsif (defined($srcpackage{$dep})) {
					$idx = $subdir{$dep}.$dep;
				}
				$idx .= $suffix;
				undef $idx if $idx =~ /^(kernel)|(base-files)$/;
				if ($idx) {
					my $depline;
					next if $pkg->{src} eq $pkg_dep->{src}.$suffix;
					next if $dep{$condition.":".$pkg->{src}."->".$idx};
					next if $dep{$pkg->{src}."->($dep)".$idx} and $pkg_dep->{vdepends};
					my $depstr;

					if ($pkg_dep->{vdepends}) {
						$depstr = "\$(if \$(CONFIG_PACKAGE_$dep),\$(curdir)/$idx/compile)";
						$dep{$pkg->{src}."->($dep)".$idx} = 1;
					} else {
						$depstr = "\$(curdir)/$idx/compile";
						$dep{$pkg->{src}."->".$idx} = 1;
					}
					$depline = get_conditional_dep($condition, $depstr);
					if ($depline) {
						$deplines{$depline}++;
					}
				}
			}
		}
		my $depline = join(" ", sort keys %deplines);
		if ($depline) {
			$line .= "\$(curdir)/".$pkg->{subdir}."$pkg->{src}/compile += $depline\n";
		}
	}

	if ($line ne "") {
		print "\n$line";
	}
	foreach my $preconfig (keys %preconfig) {
		my $cmds;
		foreach my $cfg (keys %{$preconfig{$preconfig}}) {
			my $conf = $preconfig{$preconfig}->{$cfg}->{id};
			$conf =~ tr/\.-/__/;
			$cmds .= "\techo \"uci set '$preconfig{$preconfig}->{$cfg}->{id}=\$(subst \",,\$(CONFIG_UCI_PRECONFIG_$conf))'\"; \\\n";
		}
		next unless $cmds;
		print <<EOF

ifndef DUMP_TARGET_DB
\$(TARGET_DIR)/etc/uci-defaults/$preconfig: FORCE
	( \\
$cmds \\
	) > \$@
	
ifneq (\$(IMAGEOPT)\$(CONFIG_IMAGEOPT),)
  package/preconfig: \$(TARGET_DIR)/etc/uci-defaults/$preconfig
endif
endif

EOF
	}
}

sub gen_package_source() {
	parse_package_metadata($ARGV[0]) or exit 1;
	foreach my $name (sort {uc($a) cmp uc($b)} keys %package) {
		my $pkg = $package{$name};
		if ($pkg->{name} && $pkg->{source}) {
			print "$pkg->{name}: ";
			print "$pkg->{source}\n";
		}
	}
}

sub parse_command() {
	my $cmd = shift @ARGV;
	for ($cmd) {
		/^target_config$/ and return gen_target_config();
		/^package_mk$/ and return gen_package_mk();
		/^package_config$/ and return gen_package_config();
		/^kconfig/ and return gen_kconfig_overrides();
		/^package_source$/ and return gen_package_source();
	}
	print <<EOF
Available Commands:
	$0 target_config [file] 	Target metadata in Kconfig format
	$0 package_mk [file]		Package metadata in makefile format
	$0 package_config [file] 	Package metadata in Kconfig format
	$0 kconfig [file] [config]	Kernel config overrides
	$0 package_source [file] 	Package source file information

EOF
}

parse_command();