1 # 2 # Copyright (c) 2013, 2016, 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 -O0 34 BUILD_LIBJVM_jvmciCompilerToVM.cpp_CXXFLAGS := -fno-var-tracking-assignments 35 endif 36 37 ifeq ($(OPENJDK_TARGET_OS), linux) 38 BUILD_LIBJVM_ostream.cpp_CXXFLAGS := -D_FILE_OFFSET_BITS=64 39 BUILD_LIBJVM_logFileOutput.cpp_CXXFLAGS := -D_FILE_OFFSET_BITS=64 40 41 ifeq ($(OPENJDK_TARGET_CPU_ARCH), x86) 42 BUILD_LIBJVM_sharedRuntimeTrig.cpp_CXXFLAGS := -DNO_PCH $(CXX_O_FLAG_NONE) 43 BUILD_LIBJVM_sharedRuntimeTrans.cpp_CXXFLAGS := -DNO_PCH $(CXX_O_FLAG_NONE) 44 45 ifeq ($(TOOLCHAIN_TYPE), clang) 46 JVM_PRECOMPILED_HEADER_EXCLUDE := \ 47 sharedRuntimeTrig.cpp \ 48 sharedRuntimeTrans.cpp \ 49 # 50 endif 51 endif 52 53 ifeq ($(OPENJDK_TARGET_CPU), x86) 54 # Performance measurements show that by compiling GC related code, we could 55 # significantly reduce the GC pause time on 32 bit Linux/Unix platforms by 56 # compiling without the PIC flag (-fPIC on linux). 57 # See 6454213 for more details. 58 ALL_SRC := $(filter %.cpp, $(call CacheFind, $(TOPDIR)/src/hotspot/share)) 59 NONPIC_FILTER := $(addsuffix %, $(addprefix $(TOPDIR)/src/hotspot/share/, \ 60 memory oops gc)) 61 # Due to what looks like a bug in the old build implementation of this, add a 62 # couple of more files that were accidentally matched as substrings of GC related 63 # files. 64 NONPIC_SRC := $(filter $(NONPIC_FILTER), $(ALL_SRC)) globals.cpp location.cpp 65 # Declare variables for each source file that needs the pic flag like this: 66 # BUILD_JVM_<srcfile>_CXXFLAGS := -fno-PIC 67 # This will get implicitly picked up by SetupNativeCompilation below. 68 $(foreach s, $(NONPIC_SRC), $(eval BUILD_LIBJVM_$(notdir $s)_CXXFLAGS := -fno-PIC)) 69 endif 70 71 else ifeq ($(OPENJDK_TARGET_OS), solaris) 72 ifneq ($(DEBUG_LEVEL), slowdebug) 73 # Workaround for a bug in dtrace. If ciEnv::post_compiled_method_load_event() 74 # is inlined, the resulting dtrace object file needs a reference to this 75 # function, whose symbol name is too long for dtrace. So disable inlining 76 # for this method for now. (fix this when dtrace bug 6258412 is fixed) 77 BUILD_LIBJVM_ciEnv.cpp_CXXFLAGS := \ 78 -xinline=no%__1cFciEnvbFpost_compiled_method_load_event6MpnHnmethod__v_ 79 # dtrace cannot handle tail call optimization (6672627, 6693876) 80 BUILD_LIBJVM_jni.cpp_CXXFLAGS := -Qoption ube -O~yz 81 BUILD_LIBJVM_stubGenerator_$(HOTSPOT_TARGET_CPU).cpp_CXXFLAGS := -xspace 82 83 ifeq ($(OPENJDK_TARGET_CPU), x86_64) 84 # Temporary until SS10 C++ compiler is fixed 85 BUILD_LIBJVM_generateOptoStub.cpp_CXXFLAGS := -xO2 86 # Temporary util SS12u1 C++ compiler is fixed 87 BUILD_LIBJVM_c1_LinearScan.cpp_CXXFLAGS := -xO2 88 endif 89 endif 90 91 # Need extra inlining to get oop_ps_push_contents functions to perform well enough. 92 ifeq ($(DEBUG_LEVEL),release) 93 BUILD_LIBJVM_psPromotionManager.cpp_CXXFLAGS := -W2,-Ainline:inc=1000 94 endif 95 96 ifeq ($(DEBUG_LEVEL), fastdebug) 97 # this hangs in iropt now (7113504) 98 BUILD_LIBJVM_compileBroker.cpp_CXXFLAGS := -xO2 99 100 # Frame size > 100k if we allow inlining via -g0! 101 BUILD_LIBJVM_bytecodeInterpreter.cpp_CXXFLAGS := +d 102 BUILD_LIBJVM_bytecodeInterpreterWithChecks.cpp_CXXFLAGS := +d 103 104 ifeq ($(OPENJDK_TARGET_CPU_ARCH), x86) 105 # ube explodes on x86 106 BUILD_LIBJVM_bytecodeInterpreter.cpp_CXXFLAGS += -xO1 107 BUILD_LIBJVM_bytecodeInterpreterWithChecks.cpp_CXXFLAGS += -xO1 108 endif 109 110 endif 111 112 else ifeq ($(OPENJDK_TARGET_OS), macosx) 113 # The copied fdlibm routines in these files must not be optimized 114 BUILD_LIBJVM_sharedRuntimeTrans.cpp_CXXFLAGS := $(CXX_O_FLAG_NONE) 115 BUILD_LIBJVM_sharedRuntimeTrig.cpp_CXXFLAGS := $(CXX_O_FLAG_NONE) 116 ifeq ($(TOOLCHAIN_TYPE), clang) 117 # NOTE: The old build tested clang version to make sure this workaround 118 # for the clang bug was still needed. 119 BUILD_LIBJVM_loopTransform.cpp_CXXFLAGS := $(CXX_O_FLAG_NONE) 120 ifneq ($(DEBUG_LEVEL), slowdebug) 121 BUILD_LIBJVM_unsafe.cpp_CXXFLAGS := -O1 122 endif 123 124 # The following files are compiled at various optimization 125 # levels due to optimization issues encountered at the 126 # default level. The Clang compiler issues a compile 127 # time error if there is an optimization level specification 128 # skew between the PCH file and the C++ file. Especially if the 129 # PCH file is compiled at a higher optimization level than 130 # the C++ file. One solution might be to prepare extra optimization 131 # level specific PCH files for the opt build and use them here, but 132 # it's probably not worth the effort as long as only a few files 133 # need this special handling. 134 JVM_PRECOMPILED_HEADER_EXCLUDE := \ 135 sharedRuntimeTrig.cpp \ 136 sharedRuntimeTrans.cpp \ 137 loopTransform.cpp \ 138 unsafe.cpp \ 139 jvmciCompilerToVM.cpp \ 140 # 141 endif 142 143 else ifeq ($(OPENJDK_TARGET_OS), aix) 144 BUILD_LIBJVM_synchronizer.cpp_CXXFLAGS := -qnoinline 145 BUILD_LIBJVM_sharedRuntimeTrans.cpp_CXXFLAGS := $(CXX_O_FLAG_NONE) 146 # Disable aggressive optimizations for functions in sharedRuntimeTrig.cpp 147 # and sharedRuntimeTrans.cpp on ppc64. 148 # -qstrict turns off the following optimizations: 149 # * Performing code motion and scheduling on computations such as loads 150 # and floating-point computations that may trigger an exception. 151 # * Relaxing conformance to IEEE rules. 152 # * Reassociating floating-point expressions. 153 # When using '-qstrict' there still remains one problem 154 # in javasoft.sqe.tests.api.java.lang.Math.sin5Tests when run in compile-all 155 # mode, so don't optimize sharedRuntimeTrig.cpp at all. 156 BUILD_LIBJVM_sharedRuntimeTrig.cpp_CXXFLAGS := $(CXX_O_FLAG_NONE) 157 158 ifneq ($(DEBUG_LEVEL),slowdebug) 159 # Compiling jvmtiEnterTrace.cpp with full optimization needs more than 30min 160 # (mostly because of '-qhot=level=1' and the more than 1300 'log_trace' calls 161 # which cause a lot of template expansion). 162 BUILD_LIBJVM_jvmtiEnterTrace.cpp_OPTIMIZATION := LOW 163 endif 164 165 # Disable ELF decoder on AIX (AIX uses XCOFF). 166 JVM_EXCLUDE_PATTERNS += elf 167 168 else ifeq ($(OPENJDK_TARGET_OS), windows) 169 JVM_PRECOMPILED_HEADER_EXCLUDE := \ 170 bytecodeInterpreter.cpp \ 171 bytecodeInterpreterWithChecks.cpp \ 172 opcodes.cpp \ 173 os_windows.cpp \ 174 os_windows_x86.cpp \ 175 osThread_windows.cpp \ 176 # 177 endif