#!/bin/bash

#

# Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.

# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

#

# This code is free software; you can redistribute it and/or modify it

# under the terms of the GNU General Public License version 2 only, as

# published by the Free Software Foundation.

#

# This code 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

# version 2 for more details (a copy is included in the LICENSE file that

# accompanied this code).

#

# You should have received a copy of the GNU General Public License version

# 2 along with this work; if not, write to the Free Software Foundation,

# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

#

# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

# or visit www.oracle.com if you need additional information or have any

# questions.

#

# The boot_cycle.sh script performs two complete image builds (no javadoc though....)

# where the second build uses the first build as the boot jdk.

#

# This is useful to verify that the build is self hoisting and assists

# in flushing out bugs. You can follow up with compare_objects.sh to check

# that the two boot_cycle_?/images/j2sdk are identical. They should be.

#

# Usage:

# Specify the configure arguments to boot_cycle.sh, for example:

#

#    sh common/bin/boot_cycle.sh --enable-debug --with-jvm-variants=server

#

# The same arguments will be used for both builds, except of course --with-boot-jdk

# that will be adjusted to boot_cycle_1 for the second build.

SCRIPT_DIR=`pwd`/`dirname $0`

ROOT_DIR=`(cd $SCRIPT_DIR/../.. ; pwd)`

BUILD_DIR=$ROOT_DIR/build

mkdir -p $BUILD_DIR

AUTOCONF_DIR=`(cd $SCRIPT_DIR/../autoconf ; pwd)`

BOOT_CYCLE_1_DIR=$BUILD_DIR/boot_cycle_1

BOOT_CYCLE_2_DIR=$BUILD_DIR/boot_cycle_2

# Create the boot cycle dirs in the build directory.

mkdir -p $BOOT_CYCLE_1_DIR

mkdir -p $BOOT_CYCLE_2_DIR

cd $BOOT_CYCLE_1_DIR

# Configure!

sh $AUTOCONF_DIR/configure "$@"

# Now build!

make images

if ! test -x $BOOT_CYCLE_1_DIR/images/j2sdk-image/bin/java ; then

    echo Failed to build the executable $BOOT_CYCLE_1_DIR/images/j2sdk-image/bin/java

    exit 1

fi

cd $BOOT_CYCLE_2_DIR

# Pickup the configure arguments, but drop any --with-boot-jdk=....

# and add the correct --with-boot-jdk=...boot_cycle_1... at the end.

ARGUMENTS="`cat $BOOT_CYCLE_1_DIR/configure-arguments|sed 's/--with-boot-jdk=[^ ]*//'` --with-boot-jdk=$BOOT_CYCLE_1_DIR/images/j2sdk-image"

# Configure using these adjusted arguments.

sh $AUTOCONF_DIR/configure $ARGUMENTS

# Now build!

make images

if ! test -x $BOOT_CYCLE_2_DIR/images/j2sdk-image/bin/java ; then

    echo Failed to build the final executable $BOOT_CYCLE_2_DIR/images/j2sdk-image/bin/java

    exit 1

fi