# # Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved. # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. # # This code is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License version 2 only, as # published by the Free Software Foundation. # # This code is distributed in the hope that it will be useful, but WITHOUT # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License # version 2 for more details (a copy is included in the LICENSE file that # accompanied this code). # # You should have received a copy of the GNU General Public License version # 2 along with this work; if not, write to the Free Software Foundation, # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. # # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA # or visit www.oracle.com if you need additional information or have any # questions. # # OS_VENDOR = $(shell uname -s) #------------------------------------------------------------------------ # CC, CXX & AS # If a SPEC is not set already, then use these defaults. ifeq ($(SPEC),) # When cross-compiling the ALT_COMPILER_PATH points # to the cross-compilation toolset ifdef CROSS_COMPILE_ARCH CXX = $(ALT_COMPILER_PATH)/g++ CC = $(ALT_COMPILER_PATH)/gcc HOSTCXX = g++ HOSTCC = gcc else ifneq ($(OS_VENDOR), Darwin) CXX = g++ CC = gcc HOSTCXX = $(CXX) HOSTCC = $(CC) endif # i486 hotspot requires -mstackrealign on Darwin. # llvm-gcc supports this in Xcode 3.2.6 and 4.0. # gcc-4.0 supports this on earlier versions. # Prefer llvm-gcc where available. ifeq ($(OS_VENDOR), Darwin) ifeq ($(origin CXX), default) CXX = llvm-g++ endif ifeq ($(origin CC), default) CC = llvm-gcc endif ifeq ($(ARCH), i486) LLVM_SUPPORTS_STACKREALIGN := $(shell \ [ "0"`llvm-gcc -v 2>&1 | grep LLVM | sed -E "s/.*LLVM build ([0-9]+).*/\1/"` -gt "2333" ] \ && echo true || echo false) ifeq ($(LLVM_SUPPORTS_STACKREALIGN), true) CXX32 ?= llvm-g++ CC32 ?= llvm-gcc else CXX32 ?= g++-4.0 CC32 ?= gcc-4.0 endif CXX = $(CXX32) CC = $(CC32) endif ifeq ($(USE_CLANG), true) CXX = clang++ CC = clang endif HOSTCXX = $(CXX) HOSTCC = $(CC) endif AS = $(CC) -c endif ifeq ($(OS_VENDOR), Darwin) ifeq ($(DSYMUTIL),) DSYMUTIL=dsymutil endif endif ifeq ($(USE_CLANG), true) CC_VER_MAJOR := $(shell $(CC) -v 2>&1 | grep version | sed "s/.*version \([0-9]*\.[0-9]*\).*/\1/" | cut -d'.' -f1) CC_VER_MINOR := $(shell $(CC) -v 2>&1 | grep version | sed "s/.*version \([0-9]*\.[0-9]*\).*/\1/" | cut -d'.' -f2) else # -dumpversion in gcc-2.91 shows "egcs-2.91.66". In later version, it only # prints the numbers (e.g. "2.95", "3.2.1") CC_VER_MAJOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f1) CC_VER_MINOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f2) endif ifeq ($(USE_CLANG), true) # Clang has precompiled headers support by default, but the user can switch # it off by using 'USE_PRECOMPILED_HEADER=0'. ifdef LP64 ifeq ($(USE_PRECOMPILED_HEADER),) USE_PRECOMPILED_HEADER=1 endif else # We don't support precompiled headers on 32-bit builds because there some files are # compiled with -fPIC while others are compiled without (see 'NONPIC_OBJ_FILES' rules.make) # Clang produces an error if the PCH file was compiled with other options than the actual compilation unit. USE_PRECOMPILED_HEADER=0 endif ifeq ($(USE_PRECOMPILED_HEADER),1) ifndef LP64 $(error " Precompiled Headers only supported on 64-bit platforms!") endif PRECOMPILED_HEADER_DIR=. PRECOMPILED_HEADER_SRC=$(GAMMADIR)/src/share/vm/precompiled/precompiled.hpp PRECOMPILED_HEADER=$(PRECOMPILED_HEADER_DIR)/precompiled.hpp.pch PCH_FLAG = -include precompiled.hpp PCH_FLAG/DEFAULT = $(PCH_FLAG) PCH_FLAG/NO_PCH = -DNO_PCH PCH_FLAG/BY_FILE = $(PCH_FLAG/$@)$(PCH_FLAG/DEFAULT$(PCH_FLAG/$@)) VM_PCH_FLAG/LIBJVM = $(PCH_FLAG/BY_FILE) VM_PCH_FLAG/AOUT = VM_PCH_FLAG = $(VM_PCH_FLAG/$(LINK_INTO)) # We only use precompiled headers for the JVM build CFLAGS += $(VM_PCH_FLAG) # The following files are compiled at various optimization # levels due to optimization issues encountered at the # 'OPT_CFLAGS_DEFAULT' level. The Clang compiler issues a compile # time error if there is an optimization level specification # skew between the PCH file and the C++ file. Especially if the # PCH file is compiled at a higher optimization level than # the C++ file. One solution might be to prepare extra optimization # level specific PCH files for the opt build and use them here, but # it's probably not worth the effort as long as only a few files # need this special handling. PCH_FLAG/loopTransform.o = $(PCH_FLAG/NO_PCH) PCH_FLAG/sharedRuntimeTrig.o = $(PCH_FLAG/NO_PCH) PCH_FLAG/sharedRuntimeTrans.o = $(PCH_FLAG/NO_PCH) PCH_FLAG/unsafe.o = $(PCH_FLAG/NO_PCH) endif else # ($(USE_CLANG), true) # check for precompiled headers support ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 3 \) \| \( \( $(CC_VER_MAJOR) = 3 \) \& \( $(CC_VER_MINOR) \>= 4 \) \))" "0" # Allow the user to turn off precompiled headers from the command line. ifneq ($(USE_PRECOMPILED_HEADER),0) PRECOMPILED_HEADER_DIR=. PRECOMPILED_HEADER_SRC=$(GAMMADIR)/src/share/vm/precompiled/precompiled.hpp PRECOMPILED_HEADER=$(PRECOMPILED_HEADER_DIR)/precompiled.hpp.gch endif endif endif # -DDONT_USE_PRECOMPILED_HEADER will exclude all includes in precompiled.hpp. ifeq ($(USE_PRECOMPILED_HEADER),0) CFLAGS += -DDONT_USE_PRECOMPILED_HEADER endif #------------------------------------------------------------------------ # Compiler flags # position-independent code PICFLAG = -fPIC VM_PICFLAG/LIBJVM = $(PICFLAG) VM_PICFLAG/AOUT = VM_PICFLAG = $(VM_PICFLAG/$(LINK_INTO)) ifeq ($(JVM_VARIANT_ZERO), true) CFLAGS += $(LIBFFI_CFLAGS) endif ifeq ($(JVM_VARIANT_ZEROSHARK), true) CFLAGS += $(LIBFFI_CFLAGS) CFLAGS += $(LLVM_CFLAGS) endif CFLAGS += $(VM_PICFLAG) CFLAGS += -fno-rtti CFLAGS += -fno-exceptions ifeq ($(USE_CLANG),) CFLAGS += -pthread CFLAGS += -fcheck-new # version 4 and above support fvisibility=hidden (matches jni_x86.h file) # except 4.1.2 gives pointless warnings that can't be disabled (afaik) ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0" CFLAGS += -fvisibility=hidden endif else CFLAGS += -fvisibility=hidden endif ifeq ($(USE_CLANG), true) # Before Clang 3.1, we had to pass the stack alignment specification directly to llvm with the help of '-mllvm' # Starting with version 3.1, Clang understands the '-mstack-alignment' (and rejects '-mllvm -stack-alignment') ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 3 \) \| \( \( $(CC_VER_MAJOR) = 3 \) \& \( $(CC_VER_MINOR) \>= 1 \) \))" "0" STACK_ALIGNMENT_OPT = -mno-omit-leaf-frame-pointer -mstack-alignment=16 else STACK_ALIGNMENT_OPT = -mno-omit-leaf-frame-pointer -mllvm -stack-alignment=16 endif endif ARCHFLAG = $(ARCHFLAG/$(BUILDARCH)) ARCHFLAG/i486 = -m32 -march=i586 ARCHFLAG/amd64 = -m64 $(STACK_ALIGNMENT_OPT) ARCHFLAG/ia64 = ARCHFLAG/sparc = -m32 -mcpu=v9 ARCHFLAG/sparcv9 = -m64 -mcpu=v9 ARCHFLAG/zero = $(ZERO_ARCHFLAG) # Darwin-specific build flags ifeq ($(OS_VENDOR), Darwin) # Ineffecient 16-byte stack re-alignment on Darwin/IA32 ARCHFLAG/i486 += -mstackrealign endif CFLAGS += $(ARCHFLAG) AOUT_FLAGS += $(ARCHFLAG) LFLAGS += $(ARCHFLAG) ASFLAGS += $(ARCHFLAG) ifdef E500V2 CFLAGS += -DE500V2 endif # Use C++ Interpreter ifdef CC_INTERP CFLAGS += -DCC_INTERP endif # Keep temporary files (.ii, .s) ifdef NEED_ASM CFLAGS += -save-temps else CFLAGS += -pipe endif # Compiler warnings are treated as errors ifneq ($(COMPILER_WARNINGS_FATAL),false) WARNINGS_ARE_ERRORS = -Werror endif ifeq ($(USE_CLANG), true) # However we need to clean the code up before we can unrestrictedly enable this option with Clang WARNINGS_ARE_ERRORS += -Wno-logical-op-parentheses -Wno-parentheses-equality -Wno-parentheses WARNINGS_ARE_ERRORS += -Wno-switch -Wno-tautological-compare # Not yet supported by clang in Xcode 4.6.2 # WARNINGS_ARE_ERRORS += -Wno-tautological-constant-out-of-range-compare WARNINGS_ARE_ERRORS += -Wno-delete-non-virtual-dtor -Wno-deprecated -Wno-format -Wno-dynamic-class-memaccess WARNINGS_ARE_ERRORS += -Wno-empty-body endif WARNING_FLAGS = -Wpointer-arith -Wsign-compare -Wundef -Wunused-function -Wunused-value ifeq ($(USE_CLANG),) # Since GCC 4.3, -Wconversion has changed its meanings to warn these implicit # conversions which might affect the values. Only enable it in earlier versions. ifeq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0" WARNING_FLAGS += -Wconversion endif endif CFLAGS_WARN/DEFAULT = $(WARNINGS_ARE_ERRORS) $(WARNING_FLAGS) # Special cases CFLAGS_WARN/BYFILE = $(CFLAGS_WARN/$@)$(CFLAGS_WARN/DEFAULT$(CFLAGS_WARN/$@)) # XXXDARWIN: for _dyld_bind_fully_image_containing_address ifeq ($(OS_VENDOR), Darwin) CFLAGS_WARN/os_bsd.o = $(CFLAGS_WARN/DEFAULT) -Wno-deprecated-declarations endif # optimization control flags (Used by fastdebug and release variants) OPT_CFLAGS/NOOPT=-O0 ifeq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 8 \) \))" "1" # Allow basic optimizations which don't distrupt debugging. (Principally dead code elimination) OPT_CFLAGS/DEBUG=-Og else # Allow no optimizations. OPT_CFLAGS/DEBUG=-O0 endif OPT_CFLAGS/SIZE=-Os OPT_CFLAGS/SPEED=-O3 ifeq ($(OS_VENDOR), Darwin) # use -Os by default, unless -O3 can be proved to be worth the cost, as per policy # OPT_CFLAGS_DEFAULT ?= SIZE else OPT_CFLAGS_DEFAULT ?= SPEED endif # Hotspot uses very unstrict aliasing turn this optimization off # This option is added to CFLAGS rather than OPT_CFLAGS # so that OPT_CFLAGS overrides get this option too. CFLAGS += -fno-strict-aliasing ifdef OPT_CFLAGS ifneq ("$(origin OPT_CFLAGS)", "command line") $(error " Use OPT_EXTRAS instead of OPT_CFLAGS to add extra flags to OPT_CFLAGS.") endif endif OPT_CFLAGS = $(OPT_CFLAGS/$(OPT_CFLAGS_DEFAULT)) $(OPT_EXTRAS) # The gcc compiler segv's on ia64 when compiling bytecodeInterpreter.cpp # if we use expensive-optimizations ifeq ($(BUILDARCH), ia64) OPT_CFLAGS += -fno-expensive-optimizations endif # Work around some compiler bugs. ifeq ($(USE_CLANG), true) ifeq ($(shell expr $(CC_VER_MAJOR) = 4 \& $(CC_VER_MINOR) = 2), 1) OPT_CFLAGS/loopTransform.o += $(OPT_CFLAGS/NOOPT) OPT_CFLAGS/unsafe.o += -O1 endif else # 6835796. Problem in GCC 4.3.0 with mulnode.o optimized compilation. ifeq ($(shell expr $(CC_VER_MAJOR) = 4 \& $(CC_VER_MINOR) = 3), 1) OPT_CFLAGS/mulnode.o += $(OPT_CFLAGS/NOOPT) endif endif # Flags for generating make dependency flags. DEPFLAGS = -MMD -MP -MF $(DEP_DIR)/$(@:%=%.d) ifeq ($(USE_CLANG),) ifneq ($(CC_VER_MAJOR), 2) DEPFLAGS += -fpch-deps endif endif # -DDONT_USE_PRECOMPILED_HEADER will exclude all includes in precompiled.hpp. ifeq ($(USE_PRECOMPILED_HEADER),0) CFLAGS += -DDONT_USE_PRECOMPILED_HEADER endif ifeq ($(OS_VENDOR), Darwin) # Setting these parameters makes it an error to link to macosx APIs that are # newer than the given OS version and makes the linked binaries compatible even # if built on a newer version of the OS. # The expected format is X.Y.Z ifeq ($(MACOSX_VERSION_MIN),) MACOSX_VERSION_MIN=10.7.0 endif # The macro takes the version with no dots, ex: 1070 CFLAGS += -DMAC_OS_X_VERSION_MAX_ALLOWED=$(subst .,,$(MACOSX_VERSION_MIN)) \ -mmacosx-version-min=$(MACOSX_VERSION_MIN) LDFLAGS += -mmacosx-version-min=$(MACOSX_VERSION_MIN) endif #------------------------------------------------------------------------ # Assembler flags # Enforce prerpocessing of .s files ASFLAGS += -x assembler-with-cpp #------------------------------------------------------------------------ # Linker flags # statically link libstdc++.so, work with gcc but ignored by g++ STATIC_STDCXX = -Wl,-Bstatic -lstdc++ -Wl,-Bdynamic ifeq ($(USE_CLANG),) # statically link libgcc and/or libgcc_s, libgcc does not exist before gcc-3.x. ifneq ($(CC_VER_MAJOR), 2) STATIC_LIBGCC += -static-libgcc endif # Enable linker optimization LFLAGS += -Xlinker -O1 ifeq ($(VARIANT), DBG) # for relocations read-only LFLAGS += -Wl,-z,relro ifeq ($(FASTDEBUG), false) # disable incremental relocations linking LFLAGS += -Wl,-z,now endif endif ifeq ($(BUILDARCH), ia64) LFLAGS += -Wl,-relax endif endif # Use $(MAPFLAG:FILENAME=real_file_name) to specify a map file. MAPFLAG = -Xlinker --version-script=FILENAME # # Shared Library # ifeq ($(OS_VENDOR), Darwin) # Standard linker flags LFLAGS += # The apple linker has its own variant of mapfiles/version-scripts MAPFLAG = -Xlinker -exported_symbols_list -Xlinker FILENAME # Use $(SONAMEFLAG:SONAME=soname) to specify the intrinsic name of a shared obj SONAMEFLAG = # Build shared library SHARED_FLAG = -Wl,-install_name,@rpath/$(@F) -dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $(VM_PICFLAG) # Keep symbols even they are not used #AOUT_FLAGS += -Xlinker -export-dynamic else # Enable linker optimization LFLAGS += -Xlinker -O1 # Use $(SONAMEFLAG:SONAME=soname) to specify the intrinsic name of a shared obj SONAMEFLAG = -Xlinker -soname=SONAME # Build shared library SHARED_FLAG = -shared $(VM_PICFLAG) # Keep symbols even they are not used AOUT_FLAGS += -Xlinker -export-dynamic endif #------------------------------------------------------------------------ # Debug flags ifeq ($(USE_CLANG), true) # Restrict the debug information created by Clang to avoid # too big object files and speed the build up a little bit # (see http://llvm.org/bugs/show_bug.cgi?id=7554) CFLAGS += -flimit-debug-info endif ifeq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 8 \) \))" "1" # Allow basic optimizations which don't distrupt debugging. (Principally dead code elimination) DEBUG_CFLAGS=-Og else # Allow no optimizations. DEBUG_CFLAGS=-O0 endif # DEBUG_BINARIES uses full -g debug information for all configs ifeq ($(DEBUG_BINARIES), true) CFLAGS += -g else # Use the stabs format for debugging information (this is the default # on gcc-2.91). It's good enough, has all the information about line # numbers and local variables, and libjvm.so is only about 16M. # Change this back to "-g" if you want the most expressive format. # (warning: that could easily inflate libjvm.so to 150M!) # Note: The Itanium gcc compiler crashes when using -gstabs. DEBUG_CFLAGS/ia64 = -g DEBUG_CFLAGS/amd64 = -g DEBUG_CFLAGS/arm = -g DEBUG_CFLAGS/ppc = -g DEBUG_CFLAGS += $(DEBUG_CFLAGS/$(BUILDARCH)) ifeq ($(DEBUG_CFLAGS/$(BUILDARCH)),) ifeq ($(USE_CLANG), true) # Clang doesn't understand -gstabs DEBUG_CFLAGS += -g else DEBUG_CFLAGS += -gstabs endif endif ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1) FASTDEBUG_CFLAGS/ia64 = -g FASTDEBUG_CFLAGS/amd64 = -g FASTDEBUG_CFLAGS/arm = -g FASTDEBUG_CFLAGS/ppc = -g FASTDEBUG_CFLAGS += $(FASTDEBUG_CFLAGS/$(BUILDARCH)) ifeq ($(FASTDEBUG_CFLAGS/$(BUILDARCH)),) ifeq ($(USE_CLANG), true) # Clang doesn't understand -gstabs FASTDEBUG_CFLAGS += -g else FASTDEBUG_CFLAGS += -gstabs endif endif OPT_CFLAGS/ia64 = -g OPT_CFLAGS/amd64 = -g OPT_CFLAGS/arm = -g OPT_CFLAGS/ppc = -g OPT_CFLAGS += $(OPT_CFLAGS/$(BUILDARCH)) ifeq ($(OPT_CFLAGS/$(BUILDARCH)),) ifeq ($(USE_CLANG), true) # Clang doesn't understand -gstabs OPT_CFLAGS += -g else OPT_CFLAGS += -gstabs endif endif endif endif # Enable bounds checking. ifeq ($(VARIANT), DBG) # _FORTIFY_SOURCE appears in GCC 4.0+ ifeq "$(shell expr \( $(CC_VER_MAJOR) \> 3 \) )" "0" ifeq ($(FASTDEBUG), true) # compile time size bounds checks CFLAGS += -D_FORTIFY_SOURCE=1 else # and runtime size bounds checks and paranoid stack smashing checks. CFLAGS += -D_FORTIFY_SOURCE=2 -fstack-protector-all --param ssp-buffer-size=1 endif endif endif # If we are building HEADLESS, pass on to VM # so it can set the java.awt.headless property ifdef HEADLESS CFLAGS += -DHEADLESS endif # We are building Embedded for a small device # favor code space over speed ifdef MINIMIZE_RAM_USAGE CFLAGS += -DMINIMIZE_RAM_USAGE endif