#

# 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.

#

ifeq ($(call check-jvm-feature, dtrace), true)

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

    # Integrate with libjvm. Here we generate two object files which are

    # linked with libjvm.so. This step is complicated from a dependency

    # perspective. We add these two files to the linking of libjvm using

    # EXTRA_OBJECT_FILES, but they need to be created outside the call to

    # SetupNativeCompilation. Also, one of the files is dependent on compiled

    # object files from the libjvm compilation, so this generation must happen

    # as a part of the libjvm compilation.

    DTRACE_OBJ := $(JVM_OUTPUTDIR)/objs/dtrace.o

    DTRACE_JHELPER_OBJ := $(JVM_OUTPUTDIR)/objs/dtrace_jhelper.o

    DTRACE_EXTRA_OBJECT_FILES := $(DTRACE_OBJ) $(DTRACE_JHELPER_OBJ)

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

    # Generate DTRACE_OBJ which is linked with libjvm.so. It depends on a set of

    # object files from the compilation.

    # Concatenate all *.d files into a single file

    DTRACE_SOURCE_FILES := $(addprefix $(TOPDIR)/src/hotspot/os/posix/dtrace/, \

        hotspot_jni.d \

        hotspot.d \

        hs_private.d \

    )

    $(JVM_OUTPUTDIR)/objs/dtrace.d: $(DTRACE_SOURCE_FILES)

	$(call LogInfo, Generating $(@F))

	$(call MakeDir, $(@D))

	$(CAT) $^ > $@

    DTRACE_INSTRUMENTED_OBJS := $(addprefix $(JVM_OUTPUTDIR)/objs/, \

        ciEnv.o \

        classLoadingService.o \

        compileBroker.o \

        gcVMOperations.o \

        hashtable.o \

        instanceKlass.o \

        java.o \

        jni.o \

        jvm.o \

        memoryManager.o \

        nmethod.o \

        objectMonitor.o \

        runtimeService.o \

        sharedRuntime.o \

        synchronizer.o \

        thread.o \

        unsafe.o \

        vmThread.o \

    )

    ifeq ($(call check-jvm-feature, cmsgc), true)

      DTRACE_INSTRUMENTED_OBJS += $(addprefix $(JVM_OUTPUTDIR)/objs/, \

          cmsVMOperations.o \

      )

    endif

    ifeq ($(call check-jvm-feature, parallelgc), true)

      DTRACE_INSTRUMENTED_OBJS += $(addprefix $(JVM_OUTPUTDIR)/objs/, \

          psVMOperations.o \

      )

    endif

    DTRACE_FLAGS := -64 -G

    DTRACE_CPP_FLAGS := -D_LP64

    # Make sure we run our selected compiler for preprocessing instead of letting

    # the dtrace tool pick it on it's own.

    $(DTRACE_OBJ): $(JVM_OUTPUTDIR)/objs/dtrace.d $(DTRACE_INSTRUMENTED_OBJS)

	$(call LogInfo, Generating $(@F) from $(<F) and object files)

	$(call MakeDir, $(DTRACE_SUPPORT_DIR))

	$(call ExecuteWithLog, $(DTRACE_SUPPORT_DIR)/$(@F).d, \

	    ($(CPP) $(DTRACE_CPP_FLAGS) $< > $(DTRACE_SUPPORT_DIR)/$(@F).d))

	$(call ExecuteWithLog, $@, $(DTRACE) $(DTRACE_FLAGS) -xlazyload -o $@ \

	    -s $(DTRACE_SUPPORT_DIR)/$(@F).d $(sort $(DTRACE_INSTRUMENTED_OBJS)))

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

    # Generate DTRACE_JHELPER_OBJ which is linked with libjvm.so.

    JHELPER_DTRACE_SRC := $(TOPDIR)/src/hotspot/os/solaris/dtrace/jhelper.d

    # jhelper.d includes JvmOffsetsIndex.h which was created by the gensrc step.

    DTRACE_GENSRC_DIR := $(JVM_VARIANT_OUTPUTDIR)/gensrc/dtracefiles

    JVM_OFFSETS_INDEX_H := $(DTRACE_GENSRC_DIR)/JvmOffsetsIndex.h

    # Unfortunately dtrace generates incorrect types for some symbols in

    # dtrace_jhelper.o, resulting in "warning: symbol X has differing types"

    # See JDK-6890703 for details.

    # We work around this by fixing the types for these symbols using elfedit,

    # after dtrace has generated the .o file.

    GetElfeditCommands = \

      $(foreach symbol, \

          $(shell $(GREP) ^extern $(JHELPER_DTRACE_SRC) | $(AWK) '{ gsub(";","") ; print $$3 }'), \

          -e 'sym:st_type $(symbol) 1')

    # Make sure we run our selected compiler for preprocessing instead of letting

    # the dtrace tool pick it on it's own.

    $(DTRACE_JHELPER_OBJ): $(JHELPER_DTRACE_SRC) $(JVM_OFFSETS_INDEX_H)

	$(call LogInfo, Running dtrace for $(<F))

	$(call MakeDir, $(DTRACE_SUPPORT_DIR))

	$(call ExecuteWithLog, $(DTRACE_SUPPORT_DIR)/$(@F).d, \

	    ($(CPP) $(DTRACE_CPP_FLAGS) -I$(DTRACE_GENSRC_DIR) $^ \

	    > $(DTRACE_SUPPORT_DIR)/$(@F).d))

	$(call ExecuteWithLog, $@, $(DTRACE) $(DTRACE_FLAGS) -o $@ \

	    -s $(DTRACE_SUPPORT_DIR)/$(@F).d)

	  $(call ExecuteWithLog, $@.elfedit, $(ELFEDIT) $(call GetElfeditCommands) $@)

        endif

  endif

endif