#!/usr/bin/perl
# IBM_PROLOG_BEGIN_TAG
# This is an automatically generated prolog.
#
# $Source: src/build/tools/addimgid $
#
# OpenPOWER HostBoot Project
#
# Contributors Listed Below - COPYRIGHT 2011,2018
# [+] Google Inc.
# [+] International Business Machines Corp.
#
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied. See the License for the specific language governing
# permissions and limitations under the License.
#
# IBM_PROLOG_END_TAG

use strict;

my $imageIdSym = "hbi_ImageId";

my $img = shift;
my $src = shift;

my $imgBase = $img;
$imgBase =~ s/.*\///;

my $PREFIX = $ENV{'CROSS_PREFIX'};
my $addressStr = `${PREFIX}nm $src -C | grep $imageIdSym | colrm 17`;
if ($addressStr eq '')
{
    exit 0;
}
my $address = hex $addressStr;
my $imageId = $ENV{'HOSTBOOT_VERSION'};
if ($imageId eq '')
{
    $imageId = `git describe --dirty || echo Unknown-Image \`git rev-parse --short HEAD\``;
}

chomp $imageId;
$imageId = $imageId."/".$imgBase;

if (($imageId =~ m/Unknown-Image/) ||  	# Couldn't find git describe tag.
    ($imageId =~ m/dirty/) ||	 	# Find 'dirty' commit.
    ($imageId =~ m/^.{15}-[1-9]+/))	# Found commits after a tag.
{
    $imageId = $imageId."/".$ENV{"USER"};
}

system("echo -n $imageId | dd of=$img conv=notrunc bs=1 seek=$address count=127");
exit $?