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