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#!/usr/bin/perl
# Copyright 2006, 2007 Red Hat, Inc.
#
# This file is part of Cygwin.
#
# This software is a copyrighted work licensed under the terms of the
# Cygwin license. Please consult the file "CYGWIN_LICENSE" for
# details.
#
use integer;
use strict;
sub xit($@);
my $strip = $ARGV[0] eq '-s';
shift if $strip;
my $objdump = shift;
my @objcopy = ((shift));
my $dll = shift;
my $dbg = shift;
xit 0, @objcopy, '-R', '.gnu_debuglink_overlay', '--add-gnu-debuglink=/dev/null', '--only-keep-debug', $dll, $dbg;
xit 0, @objcopy, '-g', '--add-gnu-debuglink=' . $dbg, $dll;
open(OBJDUMP, '-|', "$objdump --headers $dll");
my %section;
while (<OBJDUMP>) {
my ($idx, $name, $size, $vma, $lma, $fileoff, $algn) = /^\s*(\d+)\s+(\.\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s*$/;
if ($name eq '.gnu_debuglink') {
push(@objcopy, '--set-section-flag', '.gnu_debuglink=contents,readonly,debug,noload');
$idx = $section{'.gnu_debuglink'}{-idx} if defined($section{'.gnu_debuglink'}{-idx});
} elsif ($name eq '.gnu_debuglink_overlay') {
push (@objcopy, '-R', '.gnu_debuglink_overlay');
$section{'.gnu_debuglink'}{-idx} = $idx;
next;
}
defined($idx) and
$section{$name} = {-idx=>int($idx), -size=>hex($size), -vma=>hex($vma), -lma=>hex($lma), -fileoff=>hex($fileoff),
-algn=>0x00001000};
}
close OBJDUMP;
my $vma;
for my $k (sort {$section{$a}{-idx} <=> $section{$b}{-idx}} keys %section) {
if ($strip && $k =~ /\.(?:stab|debug)/o) {
push(@objcopy, '-R', $k);
next;
}
if (!defined($vma)) {
$vma = $section{$k}{-vma};
}
if ($vma != $section{$k}{-vma}) {
my $newvma = align($vma, $section{$k}{-algn});
if ($newvma != $vma) {
printf STDERR "$0: ERROR $k VMA 0x%08x != 0x%08x\n", $vma, $newvma;
exit 1;
}
push(@objcopy, '--change-section-address', sprintf "$k=0x%08x", $vma);
}
$vma = align($vma + $section{$k}{-size}, $section{$k}{-algn});
}
warn "$0: ERROR final VMA (" . sprintf("0x%08x", $vma) . ") not on 64K boundary\n" if $vma != align($vma, 64 * 1024);
push(@objcopy, $dll, @ARGV);
xit 1, @objcopy;
sub align {
my $n = $_[0];
my $align = $_[1] - 1;
return ($n + $align) & ~$align;
}
sub xit($@) {
my $execit = shift;
print "+ @_\n";
if ($execit) {
exec @_ or die "$0: couldn't exec $_[0] - $!\n";
} else {
system @_ and die "$0: couldn't exec $_[0] - $!\n";
}
}
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