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Calculate the optimal memory location for overlay plugins, and use plugin.lds for linking them. This gets rid of hand-adjusted archos.lds, making it easy to use overlay plugins on other lowmem targets. * Fix some duplicate and incorrect dependencies. * Change the way libs are filtered, so that a lib can be specified more than once. This allows to get rid of explicitly linking gcc-support.o, fixing empty plugins on some simulator platforms.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20163 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jens Arnold 2009-03-02 00:16:44 +00:00
parent ce1c189d50
commit c21e2e686f
11 changed files with 102 additions and 236 deletions
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31
tools/ovl_offset.pl Normal file
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@ -0,0 +1,31 @@
#!/usr/bin/perl
# Calculate the highest possible location for an overlay based
# on a reference map file (.refmap)
sub map_scan {
my ($map) = @_;
my $ramstart = -1, $ramsize = -1, $startaddr = -1, $endaddr = -1;
open (MAP, "<$map");
while (<MAP>) {
if ($_ =~ /^PLUGIN_RAM +0x([0-9a-f]+) +0x([0-9a-f]+)$/) {
$ramstart = hex($1);
$ramsize = hex($2);
}
elsif ($_ =~ / +0x([0-9a-f]+) +_?plugin_start_addr = ./) {
$startaddr = hex($1);
}
elsif ($_ =~ / +0x([0-9a-f]+) +_?plugin_end_addr = ./) {
$endaddr = hex($1);
}
}
close (MAP);
if ($ramstart < 0 || $ramsize < 0 || $startaddr < 0 || $endaddr < 0
|| $ramstart != $startaddr) {
printf "Could not analyze map file.\n";
exit 1;
}
return $ramstart + $ramsize - $endaddr;
}
printf map_scan($ARGV[0]) & ~0xf;