#

# Copyright (c) 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).

#

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

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

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# This must be the first rule

default: all

include $(SPEC)

include MakeBase.gmk

include JavaCompilation.gmk

include SetupJavaCompilers.gmk

# Hook to include the corresponding custom Makefile, if present.

$(eval $(call IncludeCustomExtension, benchmark, BuildMicrobenchmark.gmk))

#### Variables

MICROBENCHMARK_SRC := $(TOPDIR)/test/micro/src/classes

MICROBENCHMARK_OUTPUT := $(OUTPUTDIR)/micro

MICROBENCHMARK_DIST := $(OUTPUTDIR)/micro/dist

# Uncomment MICROBENCHMARK_RESOURCES when resources are added

#MICROBENCHMARK_RESOURCES += $(TOPDIR)/test/micro/src/resources

MICROBENCHMARK_CLASSES := $(OUTPUTDIR)/micro/classes

MICROBENCHMARK_GENERATED_SRC := $(MICROBENCHMARK_CLASSES)_generated

MICROBENCHMARK_JAR := $(MICROBENCHMARK_DIST)/benchmarks.jar

JMH_UNPACKED := $(MICROBENCHMARK_OUTPUT)/jmh_unpacked

#### Compile Targets

# Create separate directories for generated files 

# Avoids copying .java files into JARs later

$(MICROBENCHMARK_GENERATED_SRC)/_generated.state:

	$(RM) -r $(MICROBENCHMARK_GENERATED_SRC)

	$(MKDIR) -p $(MICROBENCHMARK_GENERATED_SRC)

	$(TOUCH) $@

$(call PrintVar, JMH_COMPILE_JARS)

$(call PrintVar, JMH_RUNTIME_JARS)

ENABLE_JAVAC_SERVER := false

# Building microbenchmark requires the jdk.unsupported and java.management modules

$(eval $(call SetupJavaCompiler,GENERATE_USINGJDKBYTECODE_UNSUPPORTED, \

    JVM := $(JAVA_SMALL) --add-modules jdk.unsupported --limit-modules java.management, \

    JAVAC := $(NEW_JAVAC), \

    FLAGS := --upgrade-module-path $(JDK_OUTPUTDIR)/modules --system none $(DISABLE_WARNINGS), \

    SERVER_DIR := $(SJAVAC_SERVER_DIR), \

    SERVER_JVM := $(SJAVAC_SERVER_JAVA)))

# Build microbenchmark suite for the current JDK

$(eval $(call SetupJavaCompilation,BUILD_JDK_MICROBENCHMARK, \

    SETUP := GENERATE_USINGJDKBYTECODE_UNSUPPORTED, \

    DISABLE_SJAVAC := true, \

    ADD_JAVAC_FLAGS := -cp $(call PathList, $(JMH_COMPILE_JARS)) \

        -s $(MICROBENCHMARK_GENERATED_SRC) \

        -Xlint -Werror, \

    SRC := $(MICROBENCHMARK_SRC), \

    BIN := $(MICROBENCHMARK_CLASSES)))

$(BUILD_JDK_MICROBENCHMARK): $(JMH_COMPILE_JARS) $(MICROBENCHMARK_GENERATED_SRC)/_generated.state

#### Package Targets

# Unpacking dependencies for inclusion in the benchmark JARs

$(JMH_UNPACKED)/_unpacked.state: $(JMH_RUNTIME_JARS)

	$(RM) -r $(JMH_UNPACKED)

	$(MKDIR) -p $(JMH_UNPACKED)

	$(foreach jar, $(JMH_RUNTIME_JARS), \

            $$($(UNZIP) -oq $(jar) -d $(JMH_UNPACKED)))

	$(RM) -r $(JMH_UNPACKED)/META-INF

	$(RM) $(JMH_UNPACKED)/*.xml

	$(TOUCH) $@

# Need double \n to get new lines and no trailing spaces

MANIFEST_ATTRIBUTES := Build: $(FULL_VERSION)\n\

\nJMH-Version: $(JMH_VERSION)\n\

\nName: OpenJDK Microbenchmark Suite

# Create benchmarks JAR file with benchmarks for both the old and new JDK

$(eval $(call SetupJarArchive,BUILD_JDK_JAR, \

    DEPENDENCIES := $(BUILD_JDK_MICROBENCHMARK) \

        $(JMH_UNPACKED)/_unpacked.state, \

    SRCS := $(JMH_UNPACKED) $(MICROBENCHMARK_CLASSES) $(MICROBENCHMARK_RESOURCES), \

    SUFFIXES := .*, \

    EXCLUDE_FILES:= _the.BUILD_JDK_MICROBENCHMARK_batch \

        _the.BUILD_JDK_MICROBENCHMARK.vardeps _unpacked.state, \

    EXTRA_MANIFEST_ATTR := $(MANIFEST_ATTRIBUTES), \

    JARMAIN := org.openjdk.jmh.Main, \

    JAR := $(MICROBENCHMARK_JAR)))

all: $(MICROBENCHMARK_JAR)

.PHONY: all