build system: introduce a new feature called build variants.
[openwrt.git] / scripts / metadata.pl
1 #!/usr/bin/env perl
2 use FindBin;
3 use lib "$FindBin::Bin";
4 use strict;
5 use metadata;
6
7 my %board;
8
9 sub confstr($) {
10         my $conf = shift;
11         $conf =~ tr#/\.\-/#___#;
12         return $conf;
13 }
14
15 sub parse_target_metadata() {
16         my $file = shift @ARGV;
17         my ($target, @target, $profile);
18         my %target;
19
20         open FILE, "<$file" or do {
21                 warn "Can't open file '$file': $!\n";
22                 return;
23         };
24         while (<FILE>) {
25                 chomp;
26                 /^Target:\s*(.+)\s*$/ and do {
27                         my $name = $1;
28                         $target = {
29                                 id => $name,
30                                 board => $name,
31                                 boardconf => confstr($name),
32                                 conf => confstr($name),
33                                 profiles => [],
34                                 features => [],
35                                 depends => [],
36                                 subtargets => []
37                         };
38                         push @target, $target;
39                         $target{$name} = $target;
40                         if ($name =~ /([^\/]+)\/([^\/]+)/) {
41                                 push @{$target{$1}->{subtargets}}, $2;
42                                 $target->{board} = $1;
43                                 $target->{boardconf} = confstr($1);
44                                 $target->{subtarget} = 1;
45                                 $target->{parent} = $target{$1};
46                         }
47                 };
48                 /^Target-Kernel:\s*(\d+\.\d+)\s*$/ and $target->{kernel} = $1;
49                 /^Target-Name:\s*(.+)\s*$/ and $target->{name} = $1;
50                 /^Target-Path:\s*(.+)\s*$/ and $target->{path} = $1;
51                 /^Target-Arch:\s*(.+)\s*$/ and $target->{arch} = $1;
52                 /^Target-Features:\s*(.+)\s*$/ and $target->{features} = [ split(/\s+/, $1) ];
53                 /^Target-Depends:\s*(.+)\s*$/ and $target->{depends} = [ split(/\s+/, $1) ];
54                 /^Target-Description:/ and $target->{desc} = get_multiline(*FILE);
55                 /^Target-Optimization:\s*(.+)\s*$/ and $target->{cflags} = $1;
56                 /^Linux-Version:\s*(.+)\s*$/ and $target->{version} = $1;
57                 /^Linux-Release:\s*(.+)\s*$/ and $target->{release} = $1;
58                 /^Linux-Kernel-Arch:\s*(.+)\s*$/ and $target->{karch} = $1;
59                 /^Default-Packages:\s*(.+)\s*$/ and $target->{packages} = [ split(/\s+/, $1) ];
60                 /^Target-Profile:\s*(.+)\s*$/ and do {
61                         $profile = {
62                                 id => $1,
63                                 name => $1,
64                                 packages => []
65                         };
66                         push @{$target->{profiles}}, $profile;
67                 };
68                 /^Target-Profile-Name:\s*(.+)\s*$/ and $profile->{name} = $1;
69                 /^Target-Profile-Packages:\s*(.*)\s*$/ and $profile->{packages} = [ split(/\s+/, $1) ];
70                 /^Target-Profile-Description:\s*(.*)\s*/ and $profile->{desc} = get_multiline(*FILE);
71                 /^Target-Profile-Config:/ and $profile->{config} = get_multiline(*FILE, "\t");
72                 /^Target-Profile-Kconfig:/ and $profile->{kconfig} = 1;
73         }
74         close FILE;
75         foreach my $target (@target) {
76                 next if @{$target->{subtargets}} > 0;
77                 @{$target->{profiles}} > 0 or $target->{profiles} = [
78                         {
79                                 id => 'Default',
80                                 name => 'Default',
81                                 packages => []
82                         }
83                 ];
84         }
85         return @target;
86 }
87
88 sub gen_kconfig_overrides() {
89         my %config;
90         my %kconfig;
91         my $package;
92         my $pkginfo = shift @ARGV;
93         my $cfgfile = shift @ARGV;
94
95         # parameter 2: build system config
96         open FILE, "<$cfgfile" or return;
97         while (<FILE>) {
98                 /^(CONFIG_.+?)=(.+)$/ and $config{$1} = 1;
99         }
100         close FILE;
101
102         # parameter 1: package metadata
103         open FILE, "<$pkginfo" or return;
104         while (<FILE>) {
105                 /^Package:\s*(.+?)\s*$/ and $package = $1;
106                 /^Kernel-Config:\s*(.+?)\s*$/ and do {
107                         my @config = split /\s+/, $1;
108                         foreach my $config (@config) {
109                                 my $val = 'm';
110                                 my $override;
111                                 if ($config =~ /^(.+?)=(.+)$/) {
112                                         $config = $1;
113                                         $override = 1;
114                                         $val = $2;
115                                 }
116                                 if ($config{"CONFIG_PACKAGE_$package"} and ($config ne 'n')) {
117                                         $kconfig{$config} = $val;
118                                 } elsif (!$override) {
119                                         $kconfig{$config} or $kconfig{$config} = 'n';
120                                 }
121                         }
122                 };
123         };
124         close FILE;
125
126         foreach my $kconfig (sort keys %kconfig) {
127                 if ($kconfig{$kconfig} eq 'n') {
128                         print "# $kconfig is not set\n";
129                 } else {
130                         print "$kconfig=$kconfig{$kconfig}\n";
131                 }
132         }
133 }
134
135 sub merge_package_lists($$) {
136         my $list1 = shift;
137         my $list2 = shift;
138         my @l = ();
139         my %pkgs;
140
141         foreach my $pkg (@$list1, @$list2) {
142                 $pkgs{$pkg} = 1;
143         }
144         foreach my $pkg (keys %pkgs) {
145                 push @l, $pkg unless ($pkg =~ /^-/ or $pkgs{"-$pkg"});
146         }
147         return sort(@l);
148 }
149
150 sub target_config_features(@) {
151         my $ret;
152
153         while ($_ = shift @_) {
154                 /broken/ and $ret .= "\tdepends BROKEN\n";
155                 /display/ and $ret .= "\tselect DISPLAY_SUPPORT\n";
156                 /gpio/ and $ret .= "\tselect GPIO_SUPPORT\n";
157                 /pci/ and $ret .= "\tselect PCI_SUPPORT\n";
158                 /pcie/ and $ret .= "\tselect PCIE_SUPPORT\n";
159                 /usb/ and $ret .= "\tselect USB_SUPPORT\n";
160                 /pcmcia/ and $ret .= "\tselect PCMCIA_SUPPORT\n";
161                 /squashfs/ and $ret .= "\tselect USES_SQUASHFS\n";
162                 /jffs2/ and $ret .= "\tselect USES_JFFS2\n";
163                 /ext2/ and $ret .= "\tselect USES_EXT2\n";
164                 /tgz/ and $ret .= "\tselect USES_TGZ\n";
165                 /cpiogz/ and $ret .= "\tselect USES_CPIOGZ\n";
166                 /fpu/ and $ret .= "\tselect HAS_FPU\n";
167                 /ramdisk/ and $ret .= "\tselect USES_INITRAMFS\n";
168                 /powerpc64/ and $ret .= "\tselect powerpc64\n";
169                 /nommu/ and $ret .= "\tselect NOMMU\n";
170         }
171         return $ret;
172 }
173
174 sub target_name($) {
175         my $target = shift;
176         my $parent = $target->{parent};
177         if ($parent) {
178                 return $target->{parent}->{name}." - ".$target->{name};
179         } else {
180                 return $target->{name};
181         }
182 }
183
184 sub kver($) {
185         my $v = shift;
186         $v =~ tr/\./_/;
187         $v =~ /(\d+_\d+_\d+)(_\d+)?/ and $v = $1;
188         return $v;
189 }
190
191 sub print_target($) {
192         my $target = shift;
193         my $features = target_config_features(@{$target->{features}});
194         my $help = $target->{desc};
195         my $kernel = $target->{kernel};
196         my $confstr;
197         $kernel =~ tr/./_/;
198
199         chomp $features;
200         $features .= "\n";
201         if ($help =~ /\w+/) {
202                 $help =~ s/^\s*/\t  /mg;
203                 $help = "\thelp\n$help";
204         } else {
205                 undef $help;
206         }
207
208         my $v = kver($target->{version});
209         if (@{$target->{subtargets}} == 0) {
210         $confstr = <<EOF;
211 config TARGET_$target->{conf}
212         bool "$target->{name}"
213         select LINUX_$kernel
214         select LINUX_$v
215 EOF
216         }
217         else {
218                 $confstr = <<EOF;
219 config TARGET_$target->{conf}
220         bool "$target->{name}"
221 EOF
222         }
223         if ($target->{subtarget}) {
224                 $confstr .= "\tdepends TARGET_$target->{boardconf}\n";
225         }
226         if (@{$target->{subtargets}} > 0) {
227                 $confstr .= "\tselect HAS_SUBTARGETS\n";
228         }
229
230         if ($target->{arch} =~ /\w/) {
231                 $confstr .= "\tselect $target->{arch}\n";
232         }
233         foreach my $dep (@{$target->{depends}}) {
234                 my $mode = "depends";
235                 my $flags;
236                 my $name;
237
238                 $dep =~ /^([@\+\-]+)(.+)$/;
239                 $flags = $1;
240                 $name = $2;
241
242                 next if $name =~ /:/;
243                 $flags =~ /-/ and $mode = "deselect";
244                 $flags =~ /\+/ and $mode = "select";
245                 $flags =~ /@/ and $confstr .= "\t$mode $name\n";
246         }
247         $confstr .= $features;
248         $confstr .= "$help\n\n";
249         print $confstr;
250 }
251
252 sub gen_target_config() {
253         my @target = parse_target_metadata();
254         my %defaults;
255
256         my @target_sort = sort {
257                 target_name($a) cmp target_name($b);
258         } @target;
259
260
261         print <<EOF;
262 choice
263         prompt "Target System"
264         default TARGET_brcm_2_4
265         reset if !DEVEL
266         
267 EOF
268
269         foreach my $target (@target_sort) {
270                 next if $target->{subtarget};
271                 print_target($target);
272         }
273
274         print <<EOF;
275 endchoice
276
277 choice
278         prompt "Subtarget" if HAS_SUBTARGETS
279
280 EOF
281         foreach my $target (@target) {
282                 next unless $target->{subtarget};
283                 print_target($target);
284         }
285
286 print <<EOF;
287 endchoice
288
289 choice
290         prompt "Target Profile"
291
292 EOF
293
294         foreach my $target (@target) {
295                 my $profiles = $target->{profiles};
296
297                 foreach my $profile (@$profiles) {
298                         print <<EOF;
299 config TARGET_$target->{conf}_$profile->{id}
300         bool "$profile->{name}"
301         depends TARGET_$target->{conf}
302 $profile->{config}
303 EOF
304                         $profile->{kconfig} and print "\tselect PROFILE_KCONFIG\n";
305                         my @pkglist = merge_package_lists($target->{packages}, $profile->{packages});
306                         foreach my $pkg (@pkglist) {
307                                 print "\tselect DEFAULT_$pkg\n";
308                                 $defaults{$pkg} = 1;
309                         }
310                         my $help = $profile->{desc};
311                         if ($help =~ /\w+/) {
312                                 $help =~ s/^\s*/\t  /mg;
313                                 $help = "\thelp\n$help";
314                         } else {
315                                 undef $help;
316                         }
317                         print "$help\n";
318                 }
319         }
320
321         print <<EOF;
322 endchoice
323
324 config HAS_SUBTARGETS
325         bool
326
327 config TARGET_BOARD
328         string
329
330 EOF
331         foreach my $target (@target) {
332                 $target->{subtarget} or print "\t\tdefault \"".$target->{board}."\" if TARGET_".$target->{conf}."\n";
333         }
334         print <<EOF;
335
336 config DEFAULT_TARGET_OPTIMIZATION
337         string
338 EOF
339         foreach my $target (@target) {
340                 next if @{$target->{subtargets}} > 0;
341                 print "\tdefault \"".$target->{cflags}."\" if TARGET_".$target->{conf}."\n";
342         }
343         print "\tdefault \"-Os -pipe -funit-at-a-time\"\n";
344
345         my %kver;
346         foreach my $target (@target) {
347                 my $v = kver($target->{version});
348                 next if $kver{$v};
349                 $kver{$v} = 1;
350                 print <<EOF;
351
352 config LINUX_$v
353         bool
354
355 EOF
356         }
357         foreach my $def (sort keys %defaults) {
358                 print "\tconfig DEFAULT_".$def."\n";
359                 print "\t\tbool\n\n";
360         }
361 }
362
363 my %dep_check;
364 sub __find_package_dep($$) {
365         my $pkg = shift;
366         my $name = shift;
367         my $deps = ($pkg->{vdepends} or $pkg->{depends});
368
369         return 0 unless defined $deps;
370         foreach my $dep (@{$deps}) {
371                 next if $dep_check{$dep};
372                 $dep_check{$dep} = 1;
373                 return 1 if $dep eq $name;
374                 return 1 if ($package{$dep} and (__find_package_dep($package{$dep},$name) == 1));
375         }
376         return 0;
377 }
378
379 # wrapper to avoid infinite recursion
380 sub find_package_dep($$) {
381         my $pkg = shift;
382         my $name = shift;
383
384         %dep_check = ();
385         return __find_package_dep($pkg, $name);
386 }
387
388 sub package_depends($$) {
389         my $a = shift;
390         my $b = shift;
391         my $ret;
392
393         return 0 if ($a->{submenu} ne $b->{submenu});
394         if (find_package_dep($a, $b->{name}) == 1) {
395                 $ret = 1;
396         } elsif (find_package_dep($b, $a->{name}) == 1) {
397                 $ret = -1;
398         } else {
399                 return 0;
400         }
401         return $ret;
402 }
403
404 sub mconf_depends {
405         my $pkgname = shift;
406         my $depends = shift;
407         my $only_dep = shift;
408         my $res;
409         my $dep = shift;
410         my $seen = shift;
411         my $parent_condition = shift;
412         $dep or $dep = {};
413         $seen or $seen = {};
414
415         $depends or return;
416         my @depends = @$depends;
417         foreach my $depend (@depends) {
418                 my $m = "depends";
419                 my $flags = "";
420                 $depend =~ s/^([@\+]+)// and $flags = $1;
421                 my $vdep;
422                 my $condition = $parent_condition;
423
424                 if ($depend =~ /^(.+):(.+)$/) {
425                         if ($1 ne "PACKAGE_$pkgname") {
426                                 if ($condition) {
427                                         $condition = "$condition && $1";
428                                 } else {
429                                         $condition = $1;
430                                 }
431                         }
432                         $depend = $2;
433                 }
434                 next if $seen->{$depend};
435                 next if $package{$depend} and $package{$depend}->{buildonly};
436                 $seen->{$depend} = 1;
437                 if ($vdep = $package{$depend}->{vdepends}) {
438                         $depend = join("||", map { "PACKAGE_".$_ } @$vdep);
439                 } else {
440                         $flags =~ /\+/ and do {
441                                 # Menuconfig will not treat 'select FOO' as a real dependency
442                                 # thus if FOO depends on other config options, these dependencies
443                                 # will not be checked. To fix this, we simply emit all of FOO's
444                                 # depends here as well.
445                                 $package{$depend} and mconf_depends($pkgname, $package{$depend}->{depends}, 1, $dep, $seen, $condition);
446
447                                 $m = "select";
448                                 next if $only_dep;
449                         };
450                         $flags =~ /@/ or $depend = "PACKAGE_$depend";
451                         if ($condition) {
452                                 if ($m =~ /select/) {
453                                         $depend = "$depend if $condition";
454                                 } else {
455                                         $depend = "!($condition) || $depend";
456                                 }
457                         }
458                 }
459                 $dep->{$depend} =~ /select/ or $dep->{$depend} = $m;
460         }
461         foreach my $depend (keys %$dep) {
462                 my $m = $dep->{$depend};
463                 $res .= "\t\t$m $depend\n";
464         }
465         return $res;
466 }
467
468 sub print_package_config_category($) {
469         my $cat = shift;
470         my %menus;
471         my %menu_dep;
472
473         return unless $category{$cat};
474
475         print "menu \"$cat\"\n\n";
476         my %spkg = %{$category{$cat}};
477
478         foreach my $spkg (sort {uc($a) cmp uc($b)} keys %spkg) {
479                 foreach my $pkg (@{$spkg{$spkg}}) {
480                         next if $pkg->{buildonly};
481                         my $menu = $pkg->{submenu};
482                         if ($menu) {
483                                 $menu_dep{$menu} or $menu_dep{$menu} = $pkg->{submenudep};
484                         } else {
485                                 $menu = 'undef';
486                         }
487                         $menus{$menu} or $menus{$menu} = [];
488                         push @{$menus{$menu}}, $pkg;
489                 }
490         }
491         my @menus = sort {
492                 ($a eq 'undef' ?  1 : 0) or
493                 ($b eq 'undef' ? -1 : 0) or
494                 ($a cmp $b)
495         } keys %menus;
496
497         foreach my $menu (@menus) {
498                 my @pkgs = sort {
499                         package_depends($a, $b) or
500                         ($a->{name} cmp $b->{name})
501                 } @{$menus{$menu}};
502                 if ($menu ne 'undef') {
503                         $menu_dep{$menu} and print "if $menu_dep{$menu}\n";
504                         print "menu \"$menu\"\n";
505                 }
506                 foreach my $pkg (@pkgs) {
507                         my $title = $pkg->{name};
508                         my $c = (72 - length($pkg->{name}) - length($pkg->{title}));
509                         if ($c > 0) {
510                                 $title .= ("." x $c). " ". $pkg->{title};
511                         }
512                         print "\t";
513                         $pkg->{menu} and print "menu";
514                         print "config PACKAGE_".$pkg->{name}."\n";
515                         print "\t\t".($pkg->{tristate} ? 'tristate' : 'bool')." \"$title\"\n";
516                         print "\t\tdefault y if DEFAULT_".$pkg->{name}."\n";
517                         foreach my $default (split /\s*,\s*/, $pkg->{default}) {
518                                 print "\t\tdefault $default\n";
519                         }
520                         print mconf_depends($pkg->{name}, $pkg->{depends}, 0);
521                         print "\t\thelp\n";
522                         print $pkg->{description};
523                         print "\n";
524
525                         $pkg->{config} and print $pkg->{config}."\n";
526                 }
527                 if ($menu ne 'undef') {
528                         print "endmenu\n";
529                         $menu_dep{$menu} and print "endif\n";
530                 }
531         }
532         print "endmenu\n\n";
533
534         undef $category{$cat};
535 }
536
537 sub print_package_features() {
538         keys %features > 0 or return;
539         print "menu \"Package features\"\n";
540         foreach my $n (keys %features) {
541                 my @features = sort { $b->{priority} <=> $a->{priority} or $a->{title} cmp $b->{title} } @{$features{$n}};
542                 print <<EOF;
543 choice
544         prompt "$features[0]->{target_title}"
545         default FEATURE_$features[0]->{name}
546 EOF
547
548                 foreach my $feature (@features) {
549                         print <<EOF;
550         config FEATURE_$feature->{name}
551                 bool "$feature->{title}"
552                 help
553 $feature->{description}
554 EOF
555                 }
556                 print "endchoice\n"
557         }
558         print "endmenu\n\n";
559 }
560
561 sub gen_package_config() {
562         parse_package_metadata($ARGV[0]) or exit 1;
563         print "menuconfig UCI_PRECONFIG\n\tbool \"Image configuration\"\n" if %preconfig;
564         foreach my $preconfig (keys %preconfig) {
565                 foreach my $cfg (keys %{$preconfig{$preconfig}}) {
566                         my $conf = $preconfig{$preconfig}->{$cfg}->{id};
567                         $conf =~ tr/\.-/__/;
568                         print <<EOF
569         config UCI_PRECONFIG_$conf
570                 string "$preconfig{$preconfig}->{$cfg}->{label}" if UCI_PRECONFIG
571                 depends PACKAGE_$preconfig
572                 default "$preconfig{$preconfig}->{$cfg}->{default}"
573
574 EOF
575                 }
576         }
577         print_package_features();
578         print_package_config_category 'Base system';
579         foreach my $cat (keys %category) {
580                 print_package_config_category $cat;
581         }
582 }
583
584 sub get_conditional_dep($$) {
585         my $condition = shift;
586         my $depstr = shift;
587         if ($condition) {
588                 if ($condition =~ /^!(.+)/) {
589                         return "\$(if \$(CONFIG_$1),,$depstr)";
590                 } else {
591                         return "\$(if \$(CONFIG_$condition),$depstr)";
592                 }
593         } else {
594                 return $depstr;
595         }
596 }
597
598 sub gen_package_mk() {
599         my %conf;
600         my %dep;
601         my %done;
602         my $line;
603
604         parse_package_metadata($ARGV[0]) or exit 1;
605         foreach my $name (sort {uc($a) cmp uc($b)} keys %package) {
606                 my $config;
607                 my $pkg = $package{$name};
608                 my @srcdeps;
609
610                 next if defined $pkg->{vdepends};
611
612                 if ($ENV{SDK}) {
613                         $conf{$pkg->{src}} or do {
614                                 $config = 'm';
615                                 $conf{$pkg->{src}} = 1;
616                         };
617                 } else {
618                         $config = "\$(CONFIG_PACKAGE_$name)"
619                 }
620                 if ($config) {
621                         $pkg->{buildonly} and $config = "";
622                         print "package-$config += $pkg->{subdir}$pkg->{src}\n";
623                         if ($pkg->{variant}) {
624                                 print "\$(curdir)/$pkg->{subdir}$pkg->{src}/variants += \$(if $config,$pkg->{variant})\n"
625                         }
626                         $pkg->{prereq} and print "prereq-$config += $pkg->{subdir}$pkg->{src}\n";
627                 }
628
629                 next if $done{$pkg->{src}};
630                 $done{$pkg->{src}} = 1;
631
632                 if (@{$pkg->{buildtypes}} > 0) {
633                         print "buildtypes-$pkg->{subdir}$pkg->{src} = ".join(' ', @{$pkg->{buildtypes}})."\n";
634                 }
635
636                 foreach my $spkg (@{$srcpackage{$pkg->{src}}}) {
637                         foreach my $dep (@{$spkg->{depends}}, @{$spkg->{builddepends}}) {
638                                 $dep =~ /@/ or do {
639                                         $dep =~ s/\+//g;
640                                         push @srcdeps, $dep;
641                                 };
642                         }
643                 }
644                 foreach my $type (@{$pkg->{buildtypes}}) {
645                         my @extra_deps;
646                         my %deplines;
647
648                         next unless $pkg->{"builddepends/$type"};
649                         foreach my $dep (@{$pkg->{"builddepends/$type"}}) {
650                                 my $suffix = "";
651                                 my $condition;
652
653                                 if ($dep =~ /^(.+):(.+)/) {
654                                         $condition = $1;
655                                         $dep = $2;
656                                 }
657                                 if ($dep =~ /^(.+)(\/.+)/) {
658                                         $dep = $1;
659                                         $suffix = $2;
660                                 }
661                                 my $pkg_dep = $package{$dep};
662                                 next unless $pkg_dep;
663
664                                 my $idx = "";
665                                 if (defined $pkg_dep->{src}) {
666                                         $idx = $pkg_dep->{subdir}.$pkg_dep->{src};
667                                 } elsif (defined($srcpackage{$dep})) {
668                                         $idx = $subdir{$dep}.$dep;
669                                 }
670                                 my $depstr = "\$(curdir)/$idx$suffix/compile";
671                                 my $depline = get_conditional_dep($condition, $depstr);
672                                 if ($depline) {
673                                         $deplines{$dep} = $depline;
674                                 }
675                         }
676                         my $depline = join(" ", values %deplines);
677                         if ($depline) {
678                                 $line .= "\$(curdir)/".$pkg->{subdir}."$pkg->{src}/$type/compile += $depline\n";
679                         }
680                 }
681
682                 my $hasdeps = 0;
683                 my %deplines;
684                 foreach my $deps (@srcdeps) {
685                         my $idx;
686                         my $condition;
687                         my $prefix = "";
688                         my $suffix = "";
689
690                         if ($deps =~ /^(.+):(.+)/) {
691                                 $condition = $1;
692                                 $deps = $2;
693                         }
694                         if ($deps =~ /^(.+)(\/.+)/) {
695                                 $deps = $1;
696                                 $suffix = $2;
697                         }
698
699                         my $pkg_dep = $package{$deps};
700                         my @deps;
701
702                         if ($pkg_dep->{vdepends}) {
703                                 @deps = @{$pkg_dep->{vdepends}};
704                         } else {
705                                 @deps = ($deps);
706                         }
707
708                         foreach my $dep (@deps) {
709                                 $pkg_dep = $package{$deps};
710                                 if (defined $pkg_dep->{src}) {
711                                         ($pkg->{src} ne $pkg_dep->{src}.$suffix) and $idx = $pkg_dep->{subdir}.$pkg_dep->{src};
712                                 } elsif (defined($srcpackage{$dep})) {
713                                         $idx = $subdir{$dep}.$dep;
714                                 }
715                                 $idx .= $suffix;
716                                 undef $idx if $idx =~ /^(kernel)|(base-files)$/;
717                                 if ($idx) {
718                                         my $depline;
719                                         next if $pkg->{src} eq $pkg_dep->{src}.$suffix;
720                                         next if $dep{$pkg->{src}."->".$idx};
721                                         next if $dep{$pkg->{src}."->($dep)".$idx} and $pkg_dep->{vdepends};
722                                         my $depstr;
723
724                                         if ($pkg_dep->{vdepends}) {
725                                                 $depstr = "\$(if \$(CONFIG_PACKAGE_$dep),\$(curdir)/$idx/compile)";
726                                                 $dep{$pkg->{src}."->($dep)".$idx} = 1;
727                                         } else {
728                                                 $depstr = "\$(curdir)/$idx/compile";
729                                                 $dep{$pkg->{src}."->".$idx} = 1;
730                                         }
731                                         $depline = get_conditional_dep($condition, $depstr);
732                                         if ($depline) {
733                                                 $deplines{$idx.$dep} = $depline;
734                                         }
735                                 }
736                         }
737                 }
738                 my $depline = join(" ", values %deplines);
739                 if ($depline) {
740                         $line .= "\$(curdir)/".$pkg->{subdir}."$pkg->{src}/compile += $depline\n";
741                 }
742         }
743
744         if ($line ne "") {
745                 print "\n$line";
746         }
747         foreach my $preconfig (keys %preconfig) {
748                 my $cmds;
749                 foreach my $cfg (keys %{$preconfig{$preconfig}}) {
750                         my $conf = $preconfig{$preconfig}->{$cfg}->{id};
751                         $conf =~ tr/\.-/__/;
752                         $cmds .= "\techo \"uci set '$preconfig{$preconfig}->{$cfg}->{id}=\$(subst \",,\$(CONFIG_UCI_PRECONFIG_$conf))'\"; \\\n";
753                 }
754                 next unless $cmds;
755                 print <<EOF
756
757 \$(TARGET_DIR)/etc/uci-defaults/$preconfig: FORCE
758         ( \\
759 $cmds \\
760         ) > \$@
761         
762 ifneq (\$(UCI_PRECONFIG)\$(CONFIG_UCI_PRECONFIG),)
763   package/preconfig: \$(TARGET_DIR)/etc/uci-defaults/$preconfig
764 endif
765 EOF
766         }
767 }
768
769 sub gen_package_source() {
770         parse_package_metadata($ARGV[0]) or exit 1;
771         foreach my $name (sort {uc($a) cmp uc($b)} keys %package) {
772                 my $pkg = $package{$name};
773                 if ($pkg->{name} && $pkg->{source}) {
774                         print "$pkg->{name}: ";
775                         print "$pkg->{source}\n";
776                 }
777         }
778 }
779
780 sub parse_command() {
781         my $cmd = shift @ARGV;
782         for ($cmd) {
783                 /^target_config$/ and return gen_target_config();
784                 /^package_mk$/ and return gen_package_mk();
785                 /^package_config$/ and return gen_package_config();
786                 /^kconfig/ and return gen_kconfig_overrides();
787                 /^package_source$/ and return gen_package_source();
788         }
789         print <<EOF
790 Available Commands:
791         $0 target_config [file]         Target metadata in Kconfig format
792         $0 package_mk [file]            Package metadata in makefile format
793         $0 package_config [file]        Package metadata in Kconfig format
794         $0 kconfig [file] [config]      Kernel config overrides
795         $0 package_source [file]        Package source file information
796
797 EOF
798 }
799
800 parse_command();