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JvmFeatures.gmk
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#
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# Copyright (c) 2013, 2024, Oracle and/or its affiliates. All rights reserved.
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# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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#
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# This code is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License version 2 only, as
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# published by the Free Software Foundation.  Oracle designates this
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# particular file as subject to the "Classpath" exception as provided
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# by Oracle in the LICENSE file that accompanied this code.
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#
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# This code is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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# version 2 for more details (a copy is included in the LICENSE file that
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# accompanied this code).
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#
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# You should have received a copy of the GNU General Public License version
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# 2 along with this work; if not, write to the Free Software Foundation,
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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#
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# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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# or visit www.oracle.com if you need additional information or have any
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# questions.
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#
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$(eval $(call IncludeCustomExtension, hotspot/lib/JvmFeatures.gmk))
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################################################################################
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# Setup CFLAGS and EXCLUDES for the libjvm compilation, depending on which
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# jvm features are selected for this jvm variant.
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ifeq ($(call check-jvm-feature, compiler1), true)
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  JVM_CFLAGS_FEATURES += -DCOMPILER1
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else
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  JVM_EXCLUDE_PATTERNS += c1_ c1/
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endif
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ifeq ($(call check-jvm-feature, compiler2), true)
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  JVM_CFLAGS_FEATURES += -DCOMPILER2
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  JVM_SRC_DIRS += $(JVM_VARIANT_OUTPUTDIR)/gensrc/adfiles
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else
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  JVM_EXCLUDES += opto libadt
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  JVM_EXCLUDE_FILES += bcEscapeAnalyzer.cpp ciTypeFlow.cpp
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  JVM_EXCLUDE_PATTERNS += c2_ runtime_ /c2/
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endif
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ifeq ($(call check-jvm-feature, zero), true)
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  JVM_EXCLUDES += opto libadt
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  JVM_EXCLUDE_PATTERNS += c1_ c1/ c2_ runtime_ /c2/
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  JVM_EXCLUDE_FILES += templateInterpreter.cpp templateInterpreterGenerator.cpp \
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                       bcEscapeAnalyzer.cpp ciTypeFlow.cpp
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  JVM_CFLAGS_FEATURES += -DZERO -DZERO_LIBARCH='"$(OPENJDK_TARGET_CPU_LEGACY_LIB)"' $(LIBFFI_CFLAGS)
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  JVM_LIBS_FEATURES += $(LIBFFI_LIBS)
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  ifeq ($(ENABLE_LIBFFI_BUNDLING), true)
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    JVM_LDFLAGS_FEATURES += $(call SET_EXECUTABLE_ORIGIN,/..)
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  endif
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else
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  JVM_EXCLUDE_PATTERNS += /zero/
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endif
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ifeq ($(JVM_VARIANT), core)
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  JVM_CFLAGS_FEATURES += -DVMTYPE=\"Core\"
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endif
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ifeq ($(JVM_VARIANT), custom)
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  JVM_CFLAGS_FEATURES += -DVMTYPE=\"Custom\"
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endif
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ifeq ($(call check-jvm-feature, minimal), true)
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  JVM_CFLAGS_FEATURES += -DMINIMAL_JVM -DVMTYPE=\"Minimal\"
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  ifeq ($(call isTargetOs, linux), true)
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    # Override the default -g with a more liberal strip policy for the minimal JVM
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    JVM_STRIPFLAGS := --strip-unneeded
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  endif
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endif
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ifeq ($(call check-jvm-feature, dtrace), true)
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  JVM_CFLAGS_FEATURES += -DDTRACE_ENABLED
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endif
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ifneq ($(call check-jvm-feature, jvmti), true)
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  JVM_CFLAGS_FEATURES += -DINCLUDE_JVMTI=0
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  JVM_EXCLUDE_FILES += jvmtiGetLoadedClasses.cpp jvmtiThreadState.cpp jvmtiExtensions.cpp \
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      jvmtiImpl.cpp jvmtiManageCapabilities.cpp jvmtiRawMonitor.cpp jvmtiUtil.cpp jvmtiTrace.cpp \
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      jvmtiCodeBlobEvents.cpp jvmtiEnv.cpp jvmtiRedefineClasses.cpp jvmtiEnvBase.cpp jvmtiEnvThreadState.cpp \
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      jvmtiTagMap.cpp jvmtiEventController.cpp evmCompat.cpp jvmtiEnter.xsl jvmtiExport.cpp \
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      jvmtiClassFileReconstituter.cpp jvmtiTagMapTable.cpp jvmtiAgent.cpp jvmtiAgentList.cpp jfrJvmtiAgent.cpp
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endif
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ifneq ($(call check-jvm-feature, jvmci), true)
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  JVM_CFLAGS_FEATURES += -DINCLUDE_JVMCI=0
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  JVM_EXCLUDES += jvmci
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  JVM_EXCLUDE_FILES += jvmciCodeInstaller_$(HOTSPOT_TARGET_CPU_ARCH).cpp
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endif
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ifneq ($(call check-jvm-feature, vm-structs), true)
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  JVM_CFLAGS_FEATURES += -DINCLUDE_VM_STRUCTS=0
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  JVM_EXCLUDE_FILES += vmStructs.cpp
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endif
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ifneq ($(call check-jvm-feature, jni-check), true)
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  JVM_CFLAGS_FEATURES += -DINCLUDE_JNI_CHECK=0
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  JVM_EXCLUDE_FILES += jniCheck.cpp
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endif
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ifneq ($(call check-jvm-feature, services), true)
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  JVM_CFLAGS_FEATURES += -DINCLUDE_SERVICES=0
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  JVM_EXCLUDE_FILES += heapDumper.cpp heapInspection.cpp \
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      attachListener_$(HOTSPOT_TARGET_OS).cpp attachListener.cpp
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endif
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ifneq ($(call check-jvm-feature, management), true)
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  JVM_CFLAGS_FEATURES += -DINCLUDE_MANAGEMENT=0
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endif
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ifneq ($(call check-jvm-feature, cds), true)
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  JVM_CFLAGS_FEATURES += -DINCLUDE_CDS=0
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  JVM_EXCLUDE_FILES += \
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      classLoaderDataShared.cpp \
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      classLoaderExt.cpp \
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      systemDictionaryShared.cpp
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  JVM_EXCLUDE_PATTERNS += cds/
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endif
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ifneq ($(call check-jvm-feature, g1gc), true)
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  JVM_CFLAGS_FEATURES += -DINCLUDE_G1GC=0
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  JVM_EXCLUDE_PATTERNS += gc/g1
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endif
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ifneq ($(call check-jvm-feature, parallelgc), true)
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  JVM_CFLAGS_FEATURES += -DINCLUDE_PARALLELGC=0
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  JVM_EXCLUDE_PATTERNS += gc/parallel
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endif
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ifneq ($(call check-jvm-feature, serialgc), true)
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  JVM_CFLAGS_FEATURES += -DINCLUDE_SERIALGC=0
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  JVM_EXCLUDE_PATTERNS += gc/serial
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endif
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ifneq ($(call check-jvm-feature, epsilongc), true)
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  JVM_CFLAGS_FEATURES += -DINCLUDE_EPSILONGC=0
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  JVM_EXCLUDE_PATTERNS += gc/epsilon
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endif
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ifneq ($(call check-jvm-feature, zgc), true)
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  JVM_CFLAGS_FEATURES += -DINCLUDE_ZGC=0
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  JVM_EXCLUDE_PATTERNS += gc/z
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  JVM_EXCLUDE_PATTERNS += gc/x
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endif
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ifneq ($(call check-jvm-feature, shenandoahgc), true)
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  JVM_CFLAGS_FEATURES += -DINCLUDE_SHENANDOAHGC=0
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  JVM_EXCLUDE_PATTERNS += gc/shenandoah
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endif
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ifneq ($(call check-jvm-feature, jfr), true)
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  JVM_CFLAGS_FEATURES += -DINCLUDE_JFR=0
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  JVM_EXCLUDE_PATTERNS += jfr
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  JVM_EXCLUDE_FILES += compilerEvent.cpp
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endif
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################################################################################
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ifeq ($(call check-jvm-feature, link-time-opt), true)
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  # Set JVM_OPTIMIZATION directly so other jvm-feature flags can override it
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  # later on if desired
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  JVM_OPTIMIZATION := HIGHEST_JVM
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  ifeq ($(call isCompiler, gcc), true)
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    JVM_CFLAGS_FEATURES += -flto=auto -fuse-linker-plugin -fno-strict-aliasing -fno-fat-lto-objects
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    JVM_LDFLAGS_FEATURES += $(CXX_O_FLAG_HIGHEST_JVM) -flto=auto -fuse-linker-plugin -fno-strict-aliasing
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  else ifeq ($(call isCompiler, microsoft), true)
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    JVM_CFLAGS_FEATURES += -GL
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    JVM_LDFLAGS_FEATURES += -LTCG:INCREMENTAL
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  endif
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else
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  ifeq ($(call isCompiler, gcc), true)
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    JVM_LDFLAGS_FEATURES += -O1
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  endif
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endif
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ifeq ($(call check-jvm-feature, opt-size), true)
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  JVM_OPTIMIZATION := SIZE
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  OPT_SPEED_SRC := \
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      allocation.cpp \
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      assembler.cpp \
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      barrierSet.cpp \
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      basicLock.cpp \
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      bytecode.cpp \
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      bytecodeInterpreter.cpp \
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      c1_Compilation.cpp \
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      c1_Compiler.cpp \
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      c1_GraphBuilder.cpp \
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      c1_LinearScan.cpp \
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      c1_LIR.cpp \
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      ciEnv.cpp \
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      ciObjectFactory.cpp \
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      codeBlob.cpp \
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      constantPool.cpp \
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      constMethod.cpp \
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      classLoader.cpp \
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      classLoaderData.cpp \
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      classFileParser.cpp \
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      classFileStream.cpp \
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      cpCache.cpp \
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      defNewGeneration.cpp \
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      frame_arm.cpp \
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      frame_aarch64.cpp \
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      frame_ppc.cpp \
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      frame_s390.cpp \
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      frame_x86.cpp \
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      genCollectedHeap.cpp \
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      generation.cpp \
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      growableArray.cpp \
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      handles.cpp \
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      hashtable.cpp \
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      heap.cpp \
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      icache.cpp \
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      icache_arm.cpp \
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      icache_aarch64.cpp \
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      icache_ppc.cpp \
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      icache_s390.cpp \
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      icache_x86.cpp \
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      instanceKlass.cpp \
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      invocationCounter.cpp \
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      iterator.cpp \
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      javaCalls.cpp \
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      javaClasses.cpp \
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      jniFastGetField_arm.cpp \
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      jvm.cpp \
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      linkResolver.cpp \
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      klass.cpp \
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      klassVtable.cpp \
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      markSweep.cpp \
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      memRegion.cpp \
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      memoryPool.cpp \
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      method.cpp \
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      methodHandles.cpp \
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      methodHandles_arm.cpp \
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      methodLiveness.cpp \
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      metaspace.cpp \
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      mutex.cpp \
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      mutexLocker.cpp \
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      nativeLookup.cpp \
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      objArrayKlass.cpp \
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      os_linux.cpp \
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      os_linux_arm.cpp \
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      resourceArea.cpp \
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      rewriter.cpp \
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      sharedRuntime.cpp \
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      signature.cpp \
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      space.cpp \
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      stackMapTable.cpp \
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      symbolTable.cpp \
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      systemDictionary.cpp \
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      symbol.cpp \
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      synchronizer.cpp \
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      timer.cpp \
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      typeArrayKlass.cpp \
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      unsafe.cpp \
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      utf8.cpp \
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      vmSymbols.cpp \
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      #
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  $(foreach s, $(OPT_SPEED_SRC), \
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      $(eval BUILD_LIBJVM_$s_OPTIMIZATION := HIGHEST_JVM))
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  ifneq ($(filter $(TOOLCHAIN_TYPE), gcc clang), )
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    BUILD_LIBJVM_systemDictionary.cpp_CXXFLAGS := -fno-optimize-sibling-calls
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  endif
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endif
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