#

# Copyright (c) 2016, 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.

#

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

# Generate classlist

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

default: all

include $(SPEC)

include MakeBase.gmk

include SetupJavaCompilers.gmk

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

# Create a jar with our generator class. Using a jar is intentional since it

# will load more classes

$(eval $(call SetupJavaCompilation, CLASSLIST_JAR, \

    SETUP := GENERATE_JDKBYTECODE, \

    SRC := $(TOPDIR)/make/jdk/src/classes, \

    INCLUDES := build/tools/classlist, \

    BIN := $(BUILDTOOLS_OUTPUTDIR)/classlist_classes, \

    JAR := $(SUPPORT_OUTPUTDIR)/classlist.jar, \

))

TARGETS += $(CLASSLIST_JAR)

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

LINK_OPT_DIR := $(SUPPORT_OUTPUTDIR)/link_opt

CLASSLIST_FILE := $(LINK_OPT_DIR)/classlist

JLI_TRACE_FILE := $(LINK_OPT_DIR)/default_jli_trace.txt

# If an external buildjdk has been supplied, we don't build a separate interim

# image, so just use the external build jdk instead.

ifeq ($(EXTERNAL_BUILDJDK), true)

  INTERIM_IMAGE_DIR := $(BUILD_JDK)

endif

# Save the stderr output of the command and print it along with stdout in case

# something goes wrong.

$(CLASSLIST_FILE): $(INTERIM_IMAGE_DIR)/bin/java$(EXE_SUFFIX) $(CLASSLIST_JAR)

	$(call MakeDir, $(LINK_OPT_DIR))

	$(call LogInfo, Generating $(patsubst $(OUTPUTDIR)/%, %, $@))

	$(call LogInfo, Generating $(patsubst $(OUTPUTDIR)/%, %, $(JLI_TRACE_FILE)))

	$(FIXPATH) $(INTERIM_IMAGE_DIR)/bin/java -XX:DumpLoadedClassList=$@.raw \

	    -Djava.lang.invoke.MethodHandle.TRACE_RESOLVE=true \

	    -cp $(SUPPORT_OUTPUTDIR)/classlist.jar \

	    build.tools.classlist.HelloClasslist \

	    2> $(LINK_OPT_DIR)/stderr > $(JLI_TRACE_FILE) \

	    || ( \

	        exitcode=$$? ; \

	        $(ECHO) "ERROR: Failed to generate link optimization data." \

	            "This is likely a problem with the newly built JVM/JDK." ; \

	        $(CAT) $(LINK_OPT_DIR)/stderr $(JLI_TRACE_FILE) ; \

	        exit $$exitcode \

	    )

	$(GREP) -v HelloClasslist $@.raw > $@

# The jli trace is created by the same recipe as classlist. By declaring these

# dependencies, make will correctly rebuild both jli trace and classlist

# incrementally using the single recipe above.

$(CLASSLIST_FILE): $(JLI_TRACE_FILE)

$(JLI_TRACE_FILE): $(INTERIM_IMAGE_DIR)/bin/java$(EXE_SUFFIX) $(CLASSLIST_JAR)

TARGETS += $(CLASSLIST_FILE) $(JLI_TRACE_FILE)

# Copy the classlist file into java.base libs

$(eval $(call SetupCopyFiles, COPY_CLASSLIST, \

    FILES := $(CLASSLIST_FILE), \

    DEST := $(SUPPORT_OUTPUTDIR)/modules_libs/java.base, \

))

TARGETS += $(COPY_CLASSLIST)

# Copy the default_jli_trace.txt file into jdk.jlink

$(eval $(call SetupCopyFiles, COPY_JLI_TRACE, \

    FILES := $(JLI_TRACE_FILE), \

    DEST := $(JDK_OUTPUTDIR)/modules/jdk.jlink/jdk/tools/jlink/internal/plugins, \

))

# Because of the single recipe for jli trace and classlist above, the

# COPY_JLI_TRACE rule needs to explicitly add the classlist file as a

# prerequisite.

$(COPY_JLI_TRACE): $(CLASSLIST_FILE)

TARGETS += $(COPY_JLI_TRACE)

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

all: $(TARGETS)