#!/usr/bin/perl -w
# objdump-info -- lintian collection script

# The original shell script version of this script is
# Copyright (C) 1998 Christian Schwarz
# 
# This version, including support for etch's binutils, is
# Copyright (C) 2008 Adam D. Barratt
# 
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
# 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with this program.  If not, you can find it on the World Wide
# Web at http://www.gnu.org/copyleft/gpl.html, or write to the Free
# Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
# MA 02110-1301, USA.

use strict;
use warnings;

use Cwd qw(realpath);
use FileHandle;

use lib "$ENV{'LINTIAN_ROOT'}/lib/";
use Lintian::Collect;
use Lintian::Command qw(spawn reap);
use Lintian::Util qw(fail);

my ($pkg, $type, $dir) = @ARGV;
my $info = Lintian::Collect->new ($pkg, $type, $dir);
my $helper = realpath("$0-helper");

if ( -e "$dir/objdump-info" ) {
    unlink "$dir/objdump-info" or fail "unlink objdump-info: $!"
}

if ( -e "$dir/objdump-info.gz" ) {
    unlink "$dir/objdump-info.gz" or fail "unlink objdump-info.gz: $!"
}

my $file_info = $info->file_info;

chdir ("$dir/unpacked")
    or fail ("unable to chdir to unpacked: $!\n");

my %opts = ( pipe_in => FileHandle->new,
             out => "$dir/objdump-info.gz",
             fail => 'error' );
spawn(\%opts, ['xargs', '-0r', $helper], '|', ['gzip', '-9c'] );
$opts{pipe_in}->blocking(1);

foreach my $bin ($info->sorted_index) {
    my $finfo = $file_info->{$bin};

    if ($finfo =~ m/^\bELF\b/) {
        printf {$opts{pipe_in}} "%s\0", $bin;
    }
}

close $opts{pipe_in} or fail "cannot write objdump-info.gz: $!";
reap(\%opts);

exit 0;

# Local Variables:
# indent-tabs-mode: nil
# cperl-indent-level: 4
# End:
# vim: syntax=perl sw=4 sts=4 sr et
