first shot at a perl script that generates the dependencies for the .elf files

that are the plugins. Not used by anything just yet.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6149 a1c6a512-1295-4272-9138-f99709370657

apps/plugins/elfdep.pl

@@ -0,0 +1,48 @@
+#!/usr/bin/perl
+
+sub getdir {
+    my ($some_dir, $files)=@_;
+    opendir(DIR, $some_dir) || die "can't opendir $some_dir: $!";
+    my @all = grep { /$files$/ && -f "$some_dir/$_" } readdir(DIR);
+    closedir DIR;
+    return @all;
+}
+
+my @all=getdir(".", "\.c");
+my @pluginhead=getdir("lib", "\.h");
+
+for(@pluginhead) {
+    $plug{$_}=$_;
+}
+
+my %head2lib=('Tremor' => 'libTremor');
+
+my $s;
+foreach $s (sort @all) {
+
+    my $plib=0;
+    my $codec;
+    open(F, "<$s");
+    while(<F>) {
+        if($_ =~ /^ *\#include [\"<]([^\"]+)[\">]/) {
+            my $f = $1;
+            if($plug{$f}) {
+                $plib=1;
+            }
+            if($f =~ /codecs\/([^\/]+)/) {
+                $codec=$1;
+                my $d = $head2lib{$codec};
+                if($d) {
+                    $codec = $d;
+                }
+            }
+        }
+    }
+
+    #print "$s uses $plib and $codec\n";
+
+    $s =~ s/\.c//;
+    printf("\$(OBJDIR)/$s.elf: \$(OBJDIR)/$s.o \$(LINKFILE)%s%s\n\t\$(ELFIT)\n\n",
+           $plib?" \$(OBJDIR)/libplugin.a":"",
+           $codec?" \$(OBJDIR)/$codec.a":"");
+}