build: add a feature flag for low-memory systems

[openwrt/openwrt.git] / scripts / metadata.pl

diff --git a/scripts/metadata.pl b/scripts/metadata.pl
index f26d8fa5e5db6cfb104f5f2ac29150d9b050bd4d..250a85ed84e2e343678bf9c44221bab7cec143e7 100755 (executable)
--- a/scripts/metadata.pl
+++ b/scripts/metadata.pl
@@ -53,6 +53,7 @@ sub parse_target_metadata() {
                /^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} = $1;
+               /^CPU-Type:\s*(.+)\s*$/ and $target->{cputype} = $1;
                /^Linux-Version:\s*(.+)\s*$/ and $target->{version} = $1;
                /^Linux-Release:\s*(.+)\s*$/ and $target->{release} = $1;
                /^Linux-Kernel-Arch:\s*(.+)\s*$/ and $target->{karch} = $1;
@@ -74,7 +75,10 @@ sub parse_target_metadata() {
        }
        close FILE;
        foreach my $target (@target) {
-               next if @{$target->{subtargets}} > 0;
+               if (@{$target->{subtargets}} > 0) {
+                       $target->{profiles} = [];
+                       next;
+               }
                @{$target->{profiles}} > 0 or $target->{profiles} = [
                        {
                                id => 'Default',
@@ -157,6 +161,7 @@ sub target_config_features(@) {
                /broken/ and $ret .= "\tdepends on BROKEN\n";
                /audio/ and $ret .= "\tselect AUDIO_SUPPORT\n";
                /display/ and $ret .= "\tselect DISPLAY_SUPPORT\n";
+               /dt/ and $ret .= "\tselect USES_DEVICETREE\n";
                /gpio/ and $ret .= "\tselect GPIO_SUPPORT\n";
                /pci/ and $ret .= "\tselect PCI_SUPPORT\n";
                /pcie/ and $ret .= "\tselect PCIE_SUPPORT\n";
@@ -177,6 +182,8 @@ sub target_config_features(@) {
                /powerpc64/ and $ret .= "\tselect powerpc64\n";
                /nommu/ and $ret .= "\tselect NOMMU\n";
                /mips16/ and $ret .= "\tselect HAS_MIPS16\n";
+               /rfkill/ and $ret .= "\tselect RFKILL_SUPPORT\n";
+               /low_mem/ and $ret .= "\tselect LOW_MEMORY_FOOTPRINT\n";
        }
        return $ret;
 }
@@ -371,6 +378,16 @@ EOF
                print "\tdefault \"".$target->{cflags}."\" if TARGET_".$target->{conf}."\n";
        }
        print "\tdefault \"-Os -pipe -funit-at-a-time\"\n";
+       print <<EOF;
+
+config CPU_TYPE
+       string
+EOF
+       foreach my $target (@target) {
+               next if @{$target->{subtargets}} > 0;
+               print "\tdefault \"".$target->{cputype}."\" if TARGET_".$target->{conf}."\n";
+       }
+       print "\tdefault \"\"\n";
 
        my %kver;
        foreach my $target (@target) {
@@ -441,6 +458,7 @@ sub mconf_depends {
        my $parent_condition = shift;
        $dep or $dep = {};
        $seen or $seen = {};
+       my @t_depends;
 
        $depends or return;
        my @depends = @$depends;
@@ -453,6 +471,7 @@ sub mconf_depends {
 
                next if $condition eq $depend;
                next if $seen->{"$parent_condition:$depend"};
+               next if $seen->{":$depend"};
                $seen->{"$parent_condition:$depend"} = 1;
                if ($depend =~ /^(.+):(.+)$/) {
                        if ($1 ne "PACKAGE_$pkgname") {
@@ -473,7 +492,7 @@ sub mconf_depends {
                                # 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);
+                               $package{$depend} and push @t_depends, [ $package{$depend}->{depends}, $condition ];
 
                                $m = "select";
                                next if $only_dep;
@@ -490,6 +509,11 @@ sub mconf_depends {
                }
                $dep->{$depend} =~ /select/ or $dep->{$depend} = $m;
        }
+
+       foreach my $tdep (@t_depends) {
+               mconf_depends($pkgname, $tdep->[0], 1, $dep, $seen, $tdep->[1]);
+       }
+
        foreach my $depend (keys %$dep) {
                my $m = $dep->{$depend};
                $res .= "\t\t$m $depend\n";
@@ -654,14 +678,7 @@ sub gen_package_mk() {
 
                next if defined $pkg->{vdepends};
 
-               if ($ENV{SDK}) {
-                       $conf{$pkg->{src}} or do {
-                               $config = 'm';
-                               $conf{$pkg->{src}} = 1;
-                       };
-               } else {
-                       $config = "\$(CONFIG_PACKAGE_$name)"
-               }
+               $config = "\$(CONFIG_PACKAGE_$name)";
                if ($config) {
                        $pkg->{buildonly} and $config = "";
                        print "package-$config += $pkg->{subdir}$pkg->{src}\n";
@@ -761,9 +778,10 @@ sub gen_package_mk() {
                                } elsif (defined($srcpackage{$dep})) {
                                        $idx = $subdir{$dep}.$dep;
                                }
-                               $idx .= $suffix;
-                               undef $idx if $idx =~ /^(kernel\/linux)|(base-files)$/;
+                               undef $idx if $idx eq 'base-files';
                                if ($idx) {
+                                       $idx .= $suffix;
+
                                        my $depline;
                                        next if $pkg->{src} eq $pkg_dep->{src}.$suffix;
                                        next if $dep{$condition.":".$pkg->{src}."->".$idx};