1 # 2 # Copyright (c) 2013, 2018, 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 endif 40 41 LIBJVM_FDLIBM_COPY_OPT_FLAG := $(CXX_O_FLAG_NONE) 42 # If the FDLIBM_CFLAGS variable is non-empty we know 43 # that the fdlibm-fork in hotspot can get optimized 44 # by using -ffp-contract=off on GCC/Clang platforms. 45 ifneq ($(FDLIBM_CFLAGS), ) 46 LIBJVM_FDLIBM_COPY_OPT_FLAG := $(CXX_O_FLAG_NORM) 47 endif 48 49 ifeq ($(OPENJDK_TARGET_OS), linux) 50 BUILD_LIBJVM_ostream.cpp_CXXFLAGS := -D_FILE_OFFSET_BITS=64 51 BUILD_LIBJVM_logFileOutput.cpp_CXXFLAGS := -D_FILE_OFFSET_BITS=64 52 53 BUILD_LIBJVM_sharedRuntimeTrig.cpp_CXXFLAGS := -DNO_PCH $(FDLIBM_CFLAGS) $(LIBJVM_FDLIBM_COPY_OPT_FLAG) 54 BUILD_LIBJVM_sharedRuntimeTrans.cpp_CXXFLAGS := -DNO_PCH $(FDLIBM_CFLAGS) $(LIBJVM_FDLIBM_COPY_OPT_FLAG) 55 56 ifeq ($(TOOLCHAIN_TYPE), clang) 57 JVM_PRECOMPILED_HEADER_EXCLUDE := \ 58 sharedRuntimeTrig.cpp \ 59 sharedRuntimeTrans.cpp \ 60 # 61 endif 62 63 ifeq ($(OPENJDK_TARGET_CPU), x86) 64 # Performance measurements show that by compiling GC related code, we could 65 # significantly reduce the GC pause time on 32 bit Linux/Unix platforms by 66 # compiling without the PIC flag (-fPIC on linux). 67 # See 6454213 for more details. 68 ALL_SRC := $(filter %.cpp, $(call CacheFind, $(TOPDIR)/src/hotspot/share)) 69 NONPIC_FILTER := $(addsuffix %, $(addprefix $(TOPDIR)/src/hotspot/share/, \ 70 memory oops gc)) 71 # Due to what looks like a bug in the old build implementation of this, add a 72 # couple of more files that were accidentally matched as substrings of GC related 73 # files. 74 NONPIC_SRC := $(filter $(NONPIC_FILTER), $(ALL_SRC)) globals.cpp location.cpp 75 # Declare variables for each source file that needs the pic flag like this: 76 # BUILD_JVM_<srcfile>_CXXFLAGS := -fno-PIC 77 # This will get implicitly picked up by SetupNativeCompilation below. 78 $(foreach s, $(NONPIC_SRC), $(eval BUILD_LIBJVM_$(notdir $s)_CXXFLAGS := -fno-PIC)) 79 endif 80 81 else ifeq ($(OPENJDK_TARGET_OS), solaris) 82 ifneq ($(DEBUG_LEVEL), slowdebug) 83 # dev studio 12.6 workaround 84 BUILD_LIBJVM_arguments.cpp_OPTIMIZATION := LOW 85 # Workaround for a bug in dtrace. If ciEnv::post_compiled_method_load_event() 86 # is inlined, the resulting dtrace object file needs a reference to this 87 # function, whose symbol name is too long for dtrace. So disable inlining 88 # for this method for now. (fix this when dtrace bug 6258412 is fixed) 89 BUILD_LIBJVM_ciEnv.cpp_CXXFLAGS := \ 90 -xinline=no%__1cFciEnvbFpost_compiled_method_load_event6MpnHnmethod__v_ 91 # dtrace cannot handle tail call optimization (6672627, 6693876) 92 BUILD_LIBJVM_jni.cpp_CXXFLAGS := -Qoption ube -O~yz 93 BUILD_LIBJVM_stubGenerator_$(HOTSPOT_TARGET_CPU).cpp_CXXFLAGS := -xspace 94 95 ifeq ($(OPENJDK_TARGET_CPU), x86_64) 96 # Temporary until SS10 C++ compiler is fixed 97 BUILD_LIBJVM_generateOptoStub.cpp_CXXFLAGS := -xO2 98 # Temporary util SS12u1 C++ compiler is fixed 99 BUILD_LIBJVM_c1_LinearScan.cpp_CXXFLAGS := -xO2 100 endif 101 endif 102 103 # Need extra inlining to get oop_ps_push_contents functions to perform well enough. 104 ifeq ($(DEBUG_LEVEL),release) 105 BUILD_LIBJVM_psPromotionManager.cpp_CXXFLAGS := -W2,-Ainline:inc=1000 106 endif 107 108 ifeq ($(DEBUG_LEVEL), fastdebug) 109 # this hangs in iropt now (7113504) 110 BUILD_LIBJVM_compileBroker.cpp_CXXFLAGS := -xO2 111 112 # Frame size > 100k if we allow inlining via -g0! 113 BUILD_LIBJVM_bytecodeInterpreter.cpp_CXXFLAGS := +d 114 BUILD_LIBJVM_bytecodeInterpreterWithChecks.cpp_CXXFLAGS := +d 115 116 ifeq ($(OPENJDK_TARGET_CPU_ARCH), x86) 117 # ube explodes on x86 118 BUILD_LIBJVM_bytecodeInterpreter.cpp_CXXFLAGS += -xO1 119 BUILD_LIBJVM_bytecodeInterpreterWithChecks.cpp_CXXFLAGS += -xO1 120 endif 121 122 endif 123 124 # Workaround for jvmciCompilerToVM.cpp long compilation time 125 BUILD_LIBJVM_jvmciCompilerToVMInit.cpp_OPTIMIZATION := NONE 126 127 else ifeq ($(OPENJDK_TARGET_OS), macosx) 128 # The copied fdlibm routines in these files must not be optimized 129 BUILD_LIBJVM_sharedRuntimeTrig.cpp_CXXFLAGS := $(FDLIBM_CFLAGS) $(LIBJVM_FDLIBM_COPY_OPT_FLAG) 130 BUILD_LIBJVM_sharedRuntimeTrans.cpp_CXXFLAGS := $(FDLIBM_CFLAGS) $(LIBJVM_FDLIBM_COPY_OPT_FLAG) 131 ifeq ($(TOOLCHAIN_TYPE), clang) 132 # NOTE: The old build tested clang version to make sure this workaround 133 # for the clang bug was still needed. 134 BUILD_LIBJVM_loopTransform.cpp_CXXFLAGS := $(CXX_O_FLAG_NONE) 135 ifneq ($(DEBUG_LEVEL), slowdebug) 136 BUILD_LIBJVM_unsafe.cpp_CXXFLAGS := -O1 137 endif 138 139 # The following files are compiled at various optimization 140 # levels due to optimization issues encountered at the 141 # default level. The Clang compiler issues a compile 142 # time error if there is an optimization level specification 143 # skew between the PCH file and the C++ file. Especially if the 144 # PCH file is compiled at a higher optimization level than 145 # the C++ file. One solution might be to prepare extra optimization 146 # level specific PCH files for the opt build and use them here, but 147 # it's probably not worth the effort as long as only a few files 148 # need this special handling. 149 JVM_PRECOMPILED_HEADER_EXCLUDE := \ 150 sharedRuntimeTrig.cpp \ 151 sharedRuntimeTrans.cpp \ 152 loopTransform.cpp \ 153 unsafe.cpp \ 154 jvmciCompilerToVM.cpp \ 155 # 156 endif 157 158 else ifeq ($(OPENJDK_TARGET_OS), aix) 159 BUILD_LIBJVM_synchronizer.cpp_CXXFLAGS := -qnoinline 160 BUILD_LIBJVM_sharedRuntimeTrans.cpp_CXXFLAGS := $(CXX_O_FLAG_NONE) 161 # Disable aggressive optimizations for functions in sharedRuntimeTrig.cpp 162 # and sharedRuntimeTrans.cpp on ppc64. 163 # -qstrict turns off the following optimizations: 164 # * Performing code motion and scheduling on computations such as loads 165 # and floating-point computations that may trigger an exception. 166 # * Relaxing conformance to IEEE rules. 167 # * Reassociating floating-point expressions. 168 # When using '-qstrict' there still remains one problem 169 # in javasoft.sqe.tests.api.java.lang.Math.sin5Tests when run in compile-all 170 # mode, so don't optimize sharedRuntimeTrig.cpp at all. 171 BUILD_LIBJVM_sharedRuntimeTrig.cpp_CXXFLAGS := $(CXX_O_FLAG_NONE) 172 173 ifneq ($(DEBUG_LEVEL),slowdebug) 174 # Compiling jvmtiEnterTrace.cpp with full optimization needs more than 30min 175 # (mostly because of '-qhot=level=1' and the more than 1300 'log_trace' calls 176 # which cause a lot of template expansion). 177 BUILD_LIBJVM_jvmtiEnterTrace.cpp_OPTIMIZATION := LOW 178 endif 179 180 # Disable ELF decoder on AIX (AIX uses XCOFF). 181 JVM_EXCLUDE_PATTERNS += elf 182 183 else ifeq ($(OPENJDK_TARGET_OS), windows) 184 JVM_PRECOMPILED_HEADER_EXCLUDE := \ 185 bytecodeInterpreter.cpp \ 186 bytecodeInterpreterWithChecks.cpp \ 187 opcodes.cpp \ 188 os_windows.cpp \ 189 os_windows_x86.cpp \ 190 osThread_windows.cpp \ 191 jvmciCompilerToVMInit.cpp \ 192 # 193 194 # Workaround for jvmciCompilerToVM.cpp long compilation time 195 BUILD_LIBJVM_jvmciCompilerToVMInit.cpp_OPTIMIZATION := NONE 196 197 endif