#
# Copyright (c) 2011, 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.  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.
#

GENSRC_JOBJC :=

JOBJC_FRAMEWORKS := Foundation CoreFoundation AppKit
FRAMEWORKS_DIR := /System/Library/Frameworks
GBM := /usr/bin/gen_bridge_metadata

JOBJC_SRC := $(JDK_TOPDIR)/src/macosx/native/jobjc
JOBJC_TMP := $(JDK_OUTPUTDIR)/gensrc_jobjc
JOBJC_DST := $(JDK_OUTPUTDIR)/gensrc_jobjc/src

#
# Build generator
#
$(eval $(call SetupJavaCompilation,BUILD_JOBJC_PRIMITIVE_CODER,\
		SETUP:=GENERATE_OLDBYTECODE,\
		DISABLE_SJAVAC:=true,\
		INCLUDES:=core/java \
                          com/apple,\
                HEADERS:=$(JOBJC_DST)/jni_headers/core ,\
		SRC:=$(JOBJC_SRC)/src \
                     $(JOBJC_SRC)/src/generator/java, \
		BIN:=$(JOBJC_TMP)/bin))

GENSRC_JOBJC += $(BUILD_JOBJC_PRIMITIVE_CODER)

#
# Generate bridge support for select frameworks
#
BRIDGESUPPORT := $(addprefix $(JOBJC_TMP)/bridge/,$(addsuffix Full.bridgesupport,$(JOBJC_FRAMEWORKS)))

#
# Define macro for rules to create bridge support
#    Not sure why, but if the system has this framework bridge support,
#    we appear to copy that, otherwise we run GBM which can be very slow.
#
define CreateBridgeSupport # Framework
$(RM) $@ $@.tmp
$(MKDIR) -p $(@D)
if [ -f $(FRAMEWORKS_DIR)/$1.framework/Resources/BridgeSupport/$(@F) ]; then \
    $(CP) $(FRAMEWORKS_DIR)/$1.framework/Resources/BridgeSupport/$(@F) $@.tmp ;\
else \
    $(GBM) -F complete --framework $1 -o $@.tmp ; \
fi
$(MV) $@.tmp $@
endef

#
# Currently 3 frameworks, avoid pattern rule due to the names being conflicting
#
$(JOBJC_TMP)/bridge/FoundationFull.bridgesupport : \
		$(wildcard $(FRAMEWORKS_DIR)/Foundation.framework/Headers/*.h)
	$(call CreateBridgeSupport,Foundation)
$(JOBJC_TMP)/bridge/CoreFoundationFull.bridgesupport : \
		$(wildcard $(FRAMEWORKS_DIR)/CoreFoundation.framework/Headers/*.h)
	$(call CreateBridgeSupport,CoreFoundation)
$(JOBJC_TMP)/bridge/AppKitFull.bridgesupport : \
		$(wildcard $(FRAMEWORKS_DIR)/AppKit.framework/Headers/*.h)
	$(call CreateBridgeSupport,AppKit)

#
# Find Xbootclasspath, for some reason, this involves firing up Java just
#     so we can get the boot classpath, so we can remove anything in that
#     classpath that ends with "JObjC.jar", and emit the new bootclasspath.
#
$(JOBJC_TMP)/_the.generator_bootclasspath : $(BUILD_JOBJC_PRIMITIVE_CODER)
	$(RM) $@
	$(JAVA) -cp $(JOBJC_TMP)/bin com.apple.internal.jobjc.generator.BootClassPathMinus JObjC.jar > $@.tmp
	$(MV) $@.tmp $@

#
# Run generator
#    Now we use bootclasspath to run java again, with the bridge support to
#    generate more source.
#    Note the use of the | (order-only) on the BRIDGESUPPORT, should serialize
#    them just in case GBM run in parallel has issues.
#
$(JOBJC_TMP)/_the.generator : $(JOBJC_TMP)/_the.generator_bootclasspath | $(BRIDGESUPPORT)
	$(RM) $@
	$(JAVA) -d64 -Xbootclasspath:`$(CAT) $(JOBJC_TMP)/_the.generator_bootclasspath` -cp $(JOBJC_TMP)/bin -ea com.apple.internal.jobjc.generator.Generator dst=$(JOBJC_DST) frameworks=$(JOBJC_TMP)/bridge
	$(TOUCH) $@

GENSRC_JOBJC += $(JOBJC_TMP)/_the.generator