1 # 2 # Copyright (c) 2013, 2019, Oracle and/or its affiliates. All rights reserved. 3 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 # 5 # This code is free software; you can redistribute it and/or modify it 6 # under the terms of the GNU General Public License version 2 only, as 7 # published by the Free Software Foundation. Oracle designates this 8 # particular file as subject to the "Classpath" exception as provided 9 # by Oracle in the LICENSE file that accompanied this code. 10 # 11 # This code is distributed in the hope that it will be useful, but WITHOUT 12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 # version 2 for more details (a copy is included in the LICENSE file that 15 # accompanied this code). 16 # 17 # You should have received a copy of the GNU General Public License version 18 # 2 along with this work; if not, write to the Free Software Foundation, 19 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 # 21 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 # or visit www.oracle.com if you need additional information or have any 23 # questions. 24 # 25 26 $(eval $(call IncludeCustomExtension, hotspot/lib/JvmOverrideFiles.gmk)) 27 28 ################################################################################ 29 # This file contains explicit overrides of CFLAGS and/or precompiled header 30 # status for individual files on specific platforms. 31 32 ifeq ($(TOOLCHAIN_TYPE), gcc) 33 BUILD_LIBJVM_vmStructs.cpp_CXXFLAGS := -fno-var-tracking-assignments 34 BUILD_LIBJVM_jvmciCompilerToVM.cpp_CXXFLAGS := -fno-var-tracking-assignments 35 BUILD_LIBJVM_jvmciCompilerToVMInit.cpp_CXXFLAGS := -fno-var-tracking-assignments 36 BUILD_LIBJVM_assembler_x86.cpp_CXXFLAGS := -Wno-maybe-uninitialized 37 BUILD_LIBJVM_cardTableBarrierSetAssembler_x86.cpp_CXXFLAGS := -Wno-maybe-uninitialized 38 BUILD_LIBJVM_interp_masm_x86.cpp_CXXFLAGS := -Wno-uninitialized 39 ifeq ($(DEBUG_LEVEL), release) 40 # Need extra inlining to collapse all marking code into the hot marking loop 41 BUILD_LIBJVM_shenandoahConcurrentMark.cpp_CXXFLAGS := --param inline-unit-growth=1000 42 endif 43 endif 44 45 LIBJVM_FDLIBM_COPY_OPT_FLAG := $(CXX_O_FLAG_NONE) 46 # If the FDLIBM_CFLAGS variable is non-empty we know 47 # that the fdlibm-fork in hotspot can get optimized 48 # by using -ffp-contract=off on GCC/Clang platforms. 49 ifneq ($(FDLIBM_CFLAGS), ) 50 LIBJVM_FDLIBM_COPY_OPT_FLAG := $(CXX_O_FLAG_NORM) 51 endif 52 53 ifeq ($(OPENJDK_TARGET_OS), linux) 54 BUILD_LIBJVM_ostream.cpp_CXXFLAGS := -D_FILE_OFFSET_BITS=64 55 BUILD_LIBJVM_logFileOutput.cpp_CXXFLAGS := -D_FILE_OFFSET_BITS=64 56 57 BUILD_LIBJVM_sharedRuntimeTrig.cpp_CXXFLAGS := -DNO_PCH $(FDLIBM_CFLAGS) $(LIBJVM_FDLIBM_COPY_OPT_FLAG) 58 BUILD_LIBJVM_sharedRuntimeTrans.cpp_CXXFLAGS := -DNO_PCH $(FDLIBM_CFLAGS) $(LIBJVM_FDLIBM_COPY_OPT_FLAG) 59 60 ifeq ($(TOOLCHAIN_TYPE), clang) 61 JVM_PRECOMPILED_HEADER_EXCLUDE := \ 62 sharedRuntimeTrig.cpp \ 63 sharedRuntimeTrans.cpp \ 64 # 65 endif 66 67 ifeq ($(OPENJDK_TARGET_CPU), x86) 68 # Performance measurements show that by compiling GC related code, we could 69 # significantly reduce the GC pause time on 32 bit Linux/Unix platforms by 70 # compiling without the PIC flag (-fPIC on linux). 71 # See 6454213 for more details. 72 ALL_SRC := $(call FindFiles, $(TOPDIR)/src/hotspot/share, *.cpp) 73 NONPIC_FILTER := $(addsuffix %, $(addprefix $(TOPDIR)/src/hotspot/share/, \ 74 memory oops gc)) 75 # Due to what looks like a bug in the old build implementation of this, add a 76 # couple of more files that were accidentally matched as substrings of GC related 77 # files. 78 NONPIC_SRC := $(filter $(NONPIC_FILTER), $(ALL_SRC)) globals.cpp location.cpp 79 # Declare variables for each source file that needs the pic flag like this: 80 # BUILD_JVM_<srcfile>_CXXFLAGS := -fno-PIC 81 # This will get implicitly picked up by SetupNativeCompilation below. 82 $(foreach s, $(NONPIC_SRC), $(eval BUILD_LIBJVM_$(notdir $s)_CXXFLAGS := -fno-PIC)) 83 endif 84 85 else ifeq ($(OPENJDK_TARGET_OS), solaris) 86 ifneq ($(DEBUG_LEVEL), slowdebug) 87 # dev studio 12.6 workaround 88 BUILD_LIBJVM_arguments.cpp_OPTIMIZATION := LOW 89 # Workaround for a bug in dtrace. If ciEnv::post_compiled_method_load_event() 90 # is inlined, the resulting dtrace object file needs a reference to this 91 # function, whose symbol name is too long for dtrace. So disable inlining 92 # for this method for now. (fix this when dtrace bug 6258412 is fixed) 93 BUILD_LIBJVM_ciEnv.cpp_CXXFLAGS := \ 94 -xinline=no%__1cFciEnvbFpost_compiled_method_load_event6MpnHnmethod__v_ 95 # dtrace cannot handle tail call optimization (6672627, 6693876) 96 BUILD_LIBJVM_jni.cpp_CXXFLAGS := -Qoption ube -O~yz 97 BUILD_LIBJVM_stubGenerator_$(HOTSPOT_TARGET_CPU).cpp_CXXFLAGS := -xspace 98 99 ifeq ($(OPENJDK_TARGET_CPU), x86_64) 100 # Temporary until SS10 C++ compiler is fixed 101 BUILD_LIBJVM_generateOptoStub.cpp_CXXFLAGS := -xO2 102 # Temporary util SS12u1 C++ compiler is fixed 103 BUILD_LIBJVM_c1_LinearScan.cpp_CXXFLAGS := -xO2 104 endif 105 endif 106 107 # Need extra inlining to get oop_ps_push_contents functions to perform well enough. 108 ifeq ($(DEBUG_LEVEL),release) 109 BUILD_LIBJVM_psPromotionManager.cpp_CXXFLAGS := -W2,-Ainline:inc=1000 110 endif 111 112 ifeq ($(DEBUG_LEVEL), fastdebug) 113 # this hangs in iropt now (7113504) 114 BUILD_LIBJVM_compileBroker.cpp_CXXFLAGS := -xO2 115 116 # Frame size > 100k if we allow inlining via -g0! 117 BUILD_LIBJVM_bytecodeInterpreter.cpp_CXXFLAGS := +d 118 BUILD_LIBJVM_bytecodeInterpreterWithChecks.cpp_CXXFLAGS := +d 119 120 ifeq ($(OPENJDK_TARGET_CPU_ARCH), x86) 121 # ube explodes on x86 122 BUILD_LIBJVM_bytecodeInterpreter.cpp_CXXFLAGS += -xO1 123 BUILD_LIBJVM_bytecodeInterpreterWithChecks.cpp_CXXFLAGS += -xO1 124 endif 125 126 endif 127 128 # Workaround for jvmciCompilerToVM.cpp long compilation time 129 BUILD_LIBJVM_jvmciCompilerToVMInit.cpp_OPTIMIZATION := NONE 130 131 else ifeq ($(OPENJDK_TARGET_OS), macosx) 132 # The copied fdlibm routines in these files must not be optimized 133 BUILD_LIBJVM_sharedRuntimeTrig.cpp_CXXFLAGS := $(FDLIBM_CFLAGS) $(LIBJVM_FDLIBM_COPY_OPT_FLAG) 134 BUILD_LIBJVM_sharedRuntimeTrans.cpp_CXXFLAGS := $(FDLIBM_CFLAGS) $(LIBJVM_FDLIBM_COPY_OPT_FLAG) 135 ifeq ($(TOOLCHAIN_TYPE), clang) 136 # NOTE: The old build tested clang version to make sure this workaround 137 # for the clang bug was still needed. 138 BUILD_LIBJVM_loopTransform.cpp_CXXFLAGS := $(CXX_O_FLAG_NONE) 139 ifneq ($(DEBUG_LEVEL), slowdebug) 140 BUILD_LIBJVM_unsafe.cpp_CXXFLAGS := -O1 141 endif 142 143 # The following files are compiled at various optimization 144 # levels due to optimization issues encountered at the 145 # default level. The Clang compiler issues a compile 146 # time error if there is an optimization level specification 147 # skew between the PCH file and the C++ file. Especially if the 148 # PCH file is compiled at a higher optimization level than 149 # the C++ file. One solution might be to prepare extra optimization 150 # level specific PCH files for the opt build and use them here, but 151 # it's probably not worth the effort as long as only a few files 152 # need this special handling. 153 JVM_PRECOMPILED_HEADER_EXCLUDE := \ 154 sharedRuntimeTrig.cpp \ 155 sharedRuntimeTrans.cpp \ 156 loopTransform.cpp \ 157 unsafe.cpp \ 158 jvmciCompilerToVM.cpp \ 159 # 160 endif 161 162 else ifeq ($(OPENJDK_TARGET_OS), aix) 163 BUILD_LIBJVM_synchronizer.cpp_CXXFLAGS := -qnoinline 164 BUILD_LIBJVM_sharedRuntimeTrans.cpp_CXXFLAGS := $(CXX_O_FLAG_NONE) 165 # Disable aggressive optimizations for functions in sharedRuntimeTrig.cpp 166 # and sharedRuntimeTrans.cpp on ppc64. 167 # -qstrict turns off the following optimizations: 168 # * Performing code motion and scheduling on computations such as loads 169 # and floating-point computations that may trigger an exception. 170 # * Relaxing conformance to IEEE rules. 171 # * Reassociating floating-point expressions. 172 # When using '-qstrict' there still remains one problem 173 # in javasoft.sqe.tests.api.java.lang.Math.sin5Tests when run in compile-all 174 # mode, so don't optimize sharedRuntimeTrig.cpp at all. 175 BUILD_LIBJVM_sharedRuntimeTrig.cpp_CXXFLAGS := $(CXX_O_FLAG_NONE) 176 177 ifneq ($(DEBUG_LEVEL),slowdebug) 178 # Compiling jvmtiEnterTrace.cpp with full optimization needs more than 30min 179 # (mostly because of '-qhot=level=1' and the more than 1300 'log_trace' calls 180 # which cause a lot of template expansion). 181 BUILD_LIBJVM_jvmtiEnterTrace.cpp_OPTIMIZATION := LOW 182 endif 183 184 # Disable ELF decoder on AIX (AIX uses XCOFF). 185 JVM_EXCLUDE_PATTERNS += elf 186 187 else ifeq ($(OPENJDK_TARGET_OS), windows) 188 JVM_PRECOMPILED_HEADER_EXCLUDE := \ 189 bytecodeInterpreter.cpp \ 190 bytecodeInterpreterWithChecks.cpp \ 191 opcodes.cpp \ 192 os_windows.cpp \ 193 os_windows_x86.cpp \ 194 osThread_windows.cpp \ 195 jvmciCompilerToVMInit.cpp \ 196 # 197 198 # Workaround for jvmciCompilerToVM.cpp long compilation time 199 BUILD_LIBJVM_jvmciCompilerToVMInit.cpp_OPTIMIZATION := NONE 200 201 endif