152 lines
6.7 KiB
Plaintext
152 lines
6.7 KiB
Plaintext
#
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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 $(call IncludeCustomExtension, hotspot/lib/JvmOverrideFiles.gmk))
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################################################################################
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# This file contains explicit overrides of CFLAGS and/or precompiled header
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# status for individual files on specific platforms.
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ifeq ($(TOOLCHAIN_TYPE), gcc)
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BUILD_LIBJVM_vmStructs.cpp_CXXFLAGS := -fno-var-tracking-assignments
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BUILD_LIBJVM_jvmciCompilerToVM.cpp_CXXFLAGS := -fno-var-tracking-assignments
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BUILD_LIBJVM_jvmciCompilerToVMInit.cpp_CXXFLAGS := -fno-var-tracking-assignments
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ifeq ($(DEBUG_LEVEL), release)
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# Need extra inlining to collapse shared marking code into the hot marking loop
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BUILD_LIBJVM_shenandoahMark.cpp_CXXFLAGS := --param inline-unit-growth=1000
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endif
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endif
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LIBJVM_FDLIBM_COPY_OPT_FLAG := $(CXX_O_FLAG_NONE)
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# If the FDLIBM_CFLAGS variable is non-empty we know
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# that the fdlibm-fork in hotspot can get optimized
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# by using -ffp-contract=off on GCC/Clang platforms.
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ifneq ($(FDLIBM_CFLAGS), )
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LIBJVM_FDLIBM_COPY_OPT_FLAG := $(CXX_O_FLAG_NORM)
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endif
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ifeq ($(call isTargetOs, linux), true)
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BUILD_LIBJVM_sharedRuntimeTrig.cpp_CXXFLAGS := -DNO_PCH $(FDLIBM_CFLAGS) $(LIBJVM_FDLIBM_COPY_OPT_FLAG)
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BUILD_LIBJVM_sharedRuntimeTrans.cpp_CXXFLAGS := -DNO_PCH $(FDLIBM_CFLAGS) $(LIBJVM_FDLIBM_COPY_OPT_FLAG)
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ifeq ($(TOOLCHAIN_TYPE), clang)
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JVM_PRECOMPILED_HEADER_EXCLUDE := \
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sharedRuntimeTrig.cpp \
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sharedRuntimeTrans.cpp \
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$(OPT_SPEED_SRC) \
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#
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endif
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ifeq ($(call isTargetCpu, x86), true)
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# Performance measurements show that by compiling GC related code, we could
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# significantly reduce the GC pause time on 32 bit Linux/Unix platforms by
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# compiling without the PIC flag (-fPIC on linux).
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# See 6454213 for more details.
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ALL_SRC := $(call FindFiles, $(TOPDIR)/src/hotspot/share, *.cpp)
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NONPIC_FILTER := $(addsuffix %, $(addprefix $(TOPDIR)/src/hotspot/share/, \
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memory oops gc))
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# Due to what looks like a bug in the old build implementation of this, add a
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# couple of more files that were accidentally matched as substrings of GC related
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# files.
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NONPIC_SRC := $(filter $(NONPIC_FILTER), $(ALL_SRC)) globals.cpp location.cpp
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# Declare variables for each source file that needs the pic flag like this:
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# BUILD_JVM_<srcfile>_CXXFLAGS := -fno-PIC
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# This will get implicitly picked up by SetupJdkLibrary below.
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$(foreach s, $(NONPIC_SRC), $(eval BUILD_LIBJVM_$(notdir $s)_CXXFLAGS := -fno-PIC))
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endif
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else ifeq ($(call isTargetOs, macosx), true)
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# The copied fdlibm routines in these files must not be optimized
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BUILD_LIBJVM_sharedRuntimeTrig.cpp_CXXFLAGS := $(FDLIBM_CFLAGS) $(LIBJVM_FDLIBM_COPY_OPT_FLAG)
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BUILD_LIBJVM_sharedRuntimeTrans.cpp_CXXFLAGS := $(FDLIBM_CFLAGS) $(LIBJVM_FDLIBM_COPY_OPT_FLAG)
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ifeq ($(TOOLCHAIN_TYPE), clang)
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# NOTE: The old build tested clang version to make sure this workaround
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# for the clang bug was still needed.
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BUILD_LIBJVM_loopTransform.cpp_CXXFLAGS := $(CXX_O_FLAG_NONE)
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# The following files are compiled at various optimization
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# levels due to optimization issues encountered at the
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# default level. The Clang compiler issues a compile
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# time error if there is an optimization level specification
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# skew between the PCH file and the C++ file. Especially if the
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# PCH file is compiled at a higher optimization level than
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# the C++ file. One solution might be to prepare extra optimization
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# level specific PCH files for the opt build and use them here, but
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# it's probably not worth the effort as long as only a few files
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# need this special handling.
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JVM_PRECOMPILED_HEADER_EXCLUDE := \
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sharedRuntimeTrig.cpp \
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sharedRuntimeTrans.cpp \
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loopTransform.cpp \
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jvmciCompilerToVM.cpp \
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$(OPT_SPEED_SRC) \
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#
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endif
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else ifeq ($(call isTargetOs, aix), true)
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ifeq ($(TOOLCHAIN_TYPE), clang)
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BUILD_LIBJVM_synchronizer.cpp_CXXFLAGS := -fno-inline
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else
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BUILD_LIBJVM_synchronizer.cpp_CXXFLAGS := -qnoinline
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endif
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BUILD_LIBJVM_sharedRuntimeTrans.cpp_CXXFLAGS := $(CXX_O_FLAG_NONE)
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# Disable aggressive optimizations for functions in sharedRuntimeTrig.cpp
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# and sharedRuntimeTrans.cpp on ppc64.
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# -qstrict turns off the following optimizations:
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# * Performing code motion and scheduling on computations such as loads
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# and floating-point computations that may trigger an exception.
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# * Relaxing conformance to IEEE rules.
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# * Reassociating floating-point expressions.
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# When using '-qstrict' there still remains one problem
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# in javasoft.sqe.tests.api.java.lang.Math.sin5Tests when run in compile-all
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# mode, so don't optimize sharedRuntimeTrig.cpp at all.
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BUILD_LIBJVM_sharedRuntimeTrig.cpp_CXXFLAGS := $(CXX_O_FLAG_NONE)
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ifneq ($(DEBUG_LEVEL), slowdebug)
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# Compiling jvmtiEnterTrace.cpp with full optimization needs more than 30min
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# (mostly because of '-qhot=level=1' and the more than 1300 'log_trace' calls
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# which cause a lot of template expansion).
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BUILD_LIBJVM_jvmtiEnterTrace.cpp_OPTIMIZATION := LOW
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endif
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# Disable ELF decoder on AIX (AIX uses XCOFF).
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JVM_EXCLUDE_PATTERNS += elf
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else ifeq ($(call isTargetOs, windows), true)
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JVM_PRECOMPILED_HEADER_EXCLUDE := \
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bytecodeInterpreter.cpp \
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bytecodeInterpreterWithChecks.cpp \
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opcodes.cpp \
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os_windows.cpp \
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os_windows_x86.cpp \
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osThread_windows.cpp \
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jvmciCompilerToVMInit.cpp \
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#
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# Workaround for jvmciCompilerToVM.cpp long compilation time
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BUILD_LIBJVM_jvmciCompilerToVMInit.cpp_OPTIMIZATION := NONE
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endif
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