#

# Copyright (c) 2013, 2018, 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.  Oracle designates this

# particular file as subject to the "Classpath" exception as provided

# by Oracle in the LICENSE file that accompanied this code.

#

# 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.

#

################################################################################

#

# This Makefile, together with Tools.gmk, can be used to compile a set of

# gcc based cross compilation, portable, self contained packages, capable

# of building OpenJDK.

#

# By default this Makefile will build a native toolchain for the current

# platform if called with something like this:

#

# make tars BASE_OS=OL

#

# To build the full set of crosstools for additional platforms, use a command

# line looking like this:

#

# make TARGETS="aarch64-linux-gnu" BASE_OS=Fedora

# or

# make TARGETS="arm-linux-gnueabihf ppc64-linux-gnu" BASE_OS=Fedora BASE_OS_VERSION=17

#

# to build several devkits for a specific OS version at once.

# You can find the final results under ../../build/devkit/result/<host>-to-<target>

#

# You may want the native toolchain to be used when compiling the cross

# compilation toolchains. To achieve this, first build the native toolchain,

# then add the bin directory from this build to the path when invoking this

# makefile again for cross compilation. Ex:

#

# PATH=$PWD/../../build/devkit/result/x86_64-linux-gnu-to-x86_64-linux-gnu/bin:$PATH \

#    make TARGETS="arm-linux-gnueabihf,ppc64-linux-gnu" BASE_OS=Fedora

#

# This is the makefile which iterates over all host and target platforms.

#

COMMA := ,

os := $(shell uname -o)

cpu := $(shell uname -p)

# Figure out what platform this is building on.

me := $(cpu)-$(if $(findstring Linux,$(os)),linux-gnu)

$(info Building on platform $(me))

#

# By default just build for the current platform, which is assumed to be Linux

#

ifeq ($(TARGETS), )

  platforms := $(me)

  host_platforms := $(platforms)

else

  platforms := $(subst $(COMMA), , $(TARGETS))

  host_platforms := $(me)

endif

target_platforms := $(platforms)

$(info host_platforms $(host_platforms))

$(info target_platforms $(target_platforms))

all compile : $(platforms)

ifeq (,$(SKIP_ME))

  $(foreach p,$(filter-out $(me),$(platforms)),$(eval $(p) : $$(me)))

endif

OUTPUT_ROOT = $(abspath ../../build/devkit)

RESULT = $(OUTPUT_ROOT)/result

submakevars = HOST=$@ BUILD=$(me) RESULT=$(RESULT) OUTPUT_ROOT=$(OUTPUT_ROOT)

$(host_platforms) :

	@echo 'Building compilers for $@'

	@echo 'Targets: $(target_platforms)'

	for p in $(filter $@, $(target_platforms)) $(filter-out $@, $(target_platforms)); do \

	  $(MAKE) -f Tools.gmk download-rpms $(submakevars) \

              TARGET=$$p PREFIX=$(RESULT)/$@-to-$$p && \

	  $(MAKE) -f Tools.gmk all $(submakevars) \

              TARGET=$$p PREFIX=$(RESULT)/$@-to-$$p && \

	  $(MAKE) -f Tools.gmk ccache $(submakevars) \

              TARGET=$@ PREFIX=$(RESULT)/$@-to-$$p || exit 1 ; \

	done

	@echo 'All done"'

today := $(shell date +%Y%m%d)

define Mktar

  $(1)-to-$(2)_tar = $$(RESULT)/sdk-$(1)-to-$(2)-$$(today).tar.gz

  $$($(1)-to-$(2)_tar) : PLATFORM = $(1)-to-$(2)

  TARFILES += $$($(1)-to-$(2)_tar)

endef

$(foreach p,$(host_platforms),$(foreach t,$(target_platforms),$(eval $(call Mktar,$(p),$(t)))))

tars : all $(TARFILES)

onlytars : $(TARFILES)

%.tar.gz :

	$(MAKE) -r -f Tars.gmk SRC_DIR=$(RESULT)/$(PLATFORM) TAR_FILE=$@

clean :

	rm -rf $(addprefix ../../build/devkit/, result $(host_platforms))

dist-clean: clean

	rm -rf $(addprefix ../../build/devkit/, src download)

FORCE :

.PHONY : all compile tars $(configs) $(host_platforms) clean dist-clean