#+
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# Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.+
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# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.+
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#+
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# This code is free software; you can redistribute it and/or modify it+
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# under the terms of the GNU General Public License version 2 only, as+
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# published by the Free Software Foundation.+
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#+
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# This code is distributed in the hope that it will be useful, but WITHOUT+
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or+
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# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License+
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# version 2 for more details (a copy is included in the LICENSE file that+
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# accompanied this code).+
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#+
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# You should have received a copy of the GNU General Public License version+
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# 2 along with this work; if not, write to the Free Software Foundation,+
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.+
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#+
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# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA+
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# or visit www.oracle.com if you need additional information or have any+
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# questions.+
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#  +
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#+
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+
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OS_VENDOR = $(shell uname -s)+
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+
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#------------------------------------------------------------------------+
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# CC, CXX & AS+
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+
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# If a SPEC is not set already, then use these defaults.+
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ifeq ($(SPEC),)+
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  # When cross-compiling the ALT_COMPILER_PATH points+
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  # to the cross-compilation toolset+
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  ifdef CROSS_COMPILE_ARCH+
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    CXX = $(ALT_COMPILER_PATH)/g+++
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    CC  = $(ALT_COMPILER_PATH)/gcc+
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    HOSTCXX = g+++
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    HOSTCC  = gcc+
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  else ifneq ($(OS_VENDOR), Darwin)+
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    CXX = g+++
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    CC  = gcc+
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    HOSTCXX = $(CXX)+
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    HOSTCC  = $(CC)+
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  endif+
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+
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  # i486 hotspot requires -mstackrealign on Darwin.+
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  # llvm-gcc supports this in Xcode 3.2.6 and 4.0.+
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  # gcc-4.0 supports this on earlier versions.+
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  # Prefer llvm-gcc where available.+
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  ifeq ($(OS_VENDOR), Darwin)+
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    ifeq ($(origin CXX), default)+
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      CXX = llvm-g+++
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    endif+
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    ifeq ($(origin CC), default)+
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      CC  = llvm-gcc+
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    endif+
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+
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    ifeq ($(ARCH), i486)+
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      LLVM_SUPPORTS_STACKREALIGN := $(shell \+
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       [ "0"`llvm-gcc -v 2>&1 | grep LLVM | sed -E "s/.*LLVM build ([0-9]+).*/\1/"` -gt "2333" ] \+
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       && echo true || echo false)+
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+
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      ifeq ($(LLVM_SUPPORTS_STACKREALIGN), true)+
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        CXX32 ?= llvm-g+++
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        CC32  ?= llvm-gcc+
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      else+
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        CXX32 ?= g++-4.0+
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        CC32  ?= gcc-4.0+
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      endif+
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      CXX = $(CXX32)+
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      CC  = $(CC32)+
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    endif+
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+
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    HOSTCXX = $(CXX)+
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    HOSTCC  = $(CC)+
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  endif+
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+
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  AS   = $(CC) -c -x assembler-with-cpp+
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endif+
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+
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+
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# -dumpversion in gcc-2.91 shows "egcs-2.91.66". In later version, it only+
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# prints the numbers (e.g. "2.95", "3.2.1")+
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CC_VER_MAJOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f1)+
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CC_VER_MINOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f2)+
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+
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# check for precompiled headers support+
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ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 3 \) \| \( \( $(CC_VER_MAJOR) = 3 \) \& \( $(CC_VER_MINOR) \>= 4 \) \))" "0"+
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# Allow the user to turn off precompiled headers from the command line.+
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ifneq ($(USE_PRECOMPILED_HEADER),0)+
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PRECOMPILED_HEADER_DIR=.+
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PRECOMPILED_HEADER_SRC=$(GAMMADIR)/src/share/vm/precompiled/precompiled.hpp+
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PRECOMPILED_HEADER=$(PRECOMPILED_HEADER_DIR)/precompiled.hpp.gch+
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endif+
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endif+
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+
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+
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#------------------------------------------------------------------------+
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# Compiler flags+
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+
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# position-independent code+
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PICFLAG = -fPIC+
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+
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VM_PICFLAG/LIBJVM = $(PICFLAG)+
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VM_PICFLAG/AOUT   =+
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VM_PICFLAG        = $(VM_PICFLAG/$(LINK_INTO))+
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+
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ifeq ($(JVM_VARIANT_ZERO), true)+
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  CFLAGS += $(LIBFFI_CFLAGS)+
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endif+
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ifeq ($(JVM_VARIANT_ZEROSHARK), true)+
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  CFLAGS += $(LIBFFI_CFLAGS)+
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  CFLAGS += $(LLVM_CFLAGS)+
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endif+
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CFLAGS += $(VM_PICFLAG)+
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CFLAGS += -fno-rtti+
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CFLAGS += -fno-exceptions+
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CFLAGS += -pthread+
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CFLAGS += -fcheck-new+
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# version 4 and above support fvisibility=hidden (matches jni_x86.h file)+
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# except 4.1.2 gives pointless warnings that can't be disabled (afaik)+
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ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0"+
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CFLAGS += -fvisibility=hidden+
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endif+
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+
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ARCHFLAG = $(ARCHFLAG/$(BUILDARCH))+
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ARCHFLAG/i486    = -m32 -march=i586+
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ARCHFLAG/amd64   = -m64+
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ARCHFLAG/ia64    =+
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ARCHFLAG/sparc   = -m32 -mcpu=v9+
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ARCHFLAG/sparcv9 = -m64 -mcpu=v9+
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ARCHFLAG/zero    = $(ZERO_ARCHFLAG)+
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+
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# Darwin-specific build flags+
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ifeq ($(OS_VENDOR), Darwin)+
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  # Ineffecient 16-byte stack re-alignment on Darwin/IA32+
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  ARCHFLAG/i486 += -mstackrealign+
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endif+
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+
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CFLAGS     += $(ARCHFLAG)+
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AOUT_FLAGS += $(ARCHFLAG)+
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LFLAGS     += $(ARCHFLAG)+
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ASFLAGS    += $(ARCHFLAG)+
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+
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ifdef E500V2+
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CFLAGS += -DE500V2+
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endif+
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+
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# Use C++ Interpreter+
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ifdef CC_INTERP+
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  CFLAGS += -DCC_INTERP+
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endif+
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+
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# Keep temporary files (.ii, .s)+
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ifdef NEED_ASM+
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  CFLAGS += -save-temps+
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else+
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  CFLAGS += -pipe+
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endif+
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+
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# Compiler warnings are treated as errors+
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ifneq ($(COMPILER_WARNINGS_FATAL),false)+
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  WARNINGS_ARE_ERRORS = -Werror+
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endif+
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+
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# Except for a few acceptable ones+
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# Since GCC 4.3, -Wconversion has changed its meanings to warn these implicit+
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# conversions which might affect the values. To avoid that, we need to turn+
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# it off explicitly. +
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ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0"+
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WARNING_FLAGS = -Wpointer-arith -Wsign-compare -Wundef+
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else+
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WARNING_FLAGS = -Wpointer-arith -Wconversion -Wsign-compare -Wundef+
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endif+
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+
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CFLAGS_WARN/DEFAULT = $(WARNINGS_ARE_ERRORS) $(WARNING_FLAGS)+
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# Special cases+
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CFLAGS_WARN/BYFILE = $(CFLAGS_WARN/$@)$(CFLAGS_WARN/DEFAULT$(CFLAGS_WARN/$@)) +
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# XXXDARWIN: for _dyld_bind_fully_image_containing_address+
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ifeq ($(OS_VENDOR), Darwin)+
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  CFLAGS_WARN/os_bsd.o = $(CFLAGS_WARN/DEFAULT) -Wno-deprecated-declarations+
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endif+
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+
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OPT_CFLAGS/SIZE=-Os+
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OPT_CFLAGS/SPEED=-O3+
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+
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# Hotspot uses very unstrict aliasing turn this optimization off+
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# This option is added to CFLAGS rather than OPT_CFLAGS+
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# so that OPT_CFLAGS overrides get this option too.+
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CFLAGS += -fno-strict-aliasing+
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+
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# The flags to use for an Optimized g++ build+
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ifeq ($(OS_VENDOR), Darwin)+
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  # use -Os by default, unless -O3 can be proved to be worth the cost, as per policy+
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  # <http://wikis.sun.com/display/OpenJDK/Mac+OS+X+Port+Compilers>+
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  OPT_CFLAGS_DEFAULT ?= SIZE+
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else+
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  OPT_CFLAGS_DEFAULT ?= SPEED+
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endif+
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+
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ifdef OPT_CFLAGS+
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  ifneq ("$(origin OPT_CFLAGS)", "command line")+
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    $(error " Use OPT_EXTRAS instead of OPT_CFLAGS to add extra flags to OPT_CFLAGS.")+
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  endif+
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endif+
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+
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OPT_CFLAGS = $(OPT_CFLAGS/$(OPT_CFLAGS_DEFAULT)) $(OPT_EXTRAS)+
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+
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# The gcc compiler segv's on ia64 when compiling bytecodeInterpreter.cpp+
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# if we use expensive-optimizations+
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ifeq ($(BUILDARCH), ia64)+
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OPT_CFLAGS += -fno-expensive-optimizations+
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endif+
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+
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OPT_CFLAGS/NOOPT=-O0+
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+
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# 6835796. Problem in GCC 4.3.0 with mulnode.o optimized compilation. +
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ifneq "$(shell expr \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) = 3 \) \))" "0"+
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OPT_CFLAGS/mulnode.o += -O0+
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endif+
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+
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# Flags for generating make dependency flags.+
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ifneq ("${CC_VER_MAJOR}", "2")+
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DEPFLAGS = -fpch-deps -MMD -MP -MF $(DEP_DIR)/$(@:%=%.d)+
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endif+
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+
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# -DDONT_USE_PRECOMPILED_HEADER will exclude all includes in precompiled.hpp.+
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ifeq ($(USE_PRECOMPILED_HEADER),0)+
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CFLAGS += -DDONT_USE_PRECOMPILED_HEADER+
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endif+
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+
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ifeq ($(OS_VENDOR), Darwin)+
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  # Setting these parameters makes it an error to link to macosx APIs that are +
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  # newer than the given OS version and makes the linked binaries compatible even+
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  # if built on a newer version of the OS.+
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  # The expected format is X.Y.Z+
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  ifeq ($(MACOSX_VERSION_MIN),)+
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    MACOSX_VERSION_MIN=10.7.0+
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  endif+
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  # The macro takes the version with no dots, ex: 1070+
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  CFLAGS += -DMAC_OS_X_VERSION_MAX_ALLOWED=$(subst .,,$(MACOSX_VERSION_MIN)) \+
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            -mmacosx-version-min=$(MACOSX_VERSION_MIN)+
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  LDFLAGS += -mmacosx-version-min=$(MACOSX_VERSION_MIN)+
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endif+
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+
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#------------------------------------------------------------------------+
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# Linker flags+
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+
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# statically link libstdc++.so, work with gcc but ignored by g+++
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STATIC_STDCXX = -Wl,-Bstatic -lstdc++ -Wl,-Bdynamic+
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+
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# statically link libgcc and/or libgcc_s, libgcc does not exist before gcc-3.x.+
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ifneq ("${CC_VER_MAJOR}", "2")+
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STATIC_LIBGCC += -static-libgcc+
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endif+
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+
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ifeq ($(BUILDARCH), ia64)+
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LFLAGS += -Wl,-relax+
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endif+
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+
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# Use $(MAPFLAG:FILENAME=real_file_name) to specify a map file.+
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MAPFLAG = -Xlinker --version-script=FILENAME+
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+
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#+
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# Shared Library+
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#+
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ifeq ($(OS_VENDOR), Darwin)+
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  # Standard linker flags+
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  LFLAGS +=+
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+
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  # Darwin doesn't use ELF and doesn't support version scripts+
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  LDNOMAP = true+
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+
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  # Use $(SONAMEFLAG:SONAME=soname) to specify the intrinsic name of a shared obj+
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  SONAMEFLAG =+
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+
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  # Build shared library+
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  SHARED_FLAG = -Wl,-install_name,@rpath/$(@F) -dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $(VM_PICFLAG)+
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+
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  # Keep symbols even they are not used+
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  #AOUT_FLAGS += -Xlinker -export-dynamic+
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else+
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  # Enable linker optimization+
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  LFLAGS += -Xlinker -O1+
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+
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  # Use $(SONAMEFLAG:SONAME=soname) to specify the intrinsic name of a shared obj+
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  SONAMEFLAG = -Xlinker -soname=SONAME+
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+
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  # Build shared library+
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  SHARED_FLAG = -shared $(VM_PICFLAG)+
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+
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  # Keep symbols even they are not used+
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  AOUT_FLAGS += -Xlinker -export-dynamic+
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endif+
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+
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#------------------------------------------------------------------------+
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# Debug flags+
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+
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# Use the stabs format for debugging information (this is the default+
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# on gcc-2.91). It's good enough, has all the information about line+
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# numbers and local variables, and libjvm.so is only about 16M.+
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# Change this back to "-g" if you want the most expressive format.+
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# (warning: that could easily inflate libjvm.so to 150M!)+
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# Note: The Itanium gcc compiler crashes when using -gstabs.+
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DEBUG_CFLAGS/ia64  = -g+
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DEBUG_CFLAGS/amd64 = -g+
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DEBUG_CFLAGS/arm   = -g+
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DEBUG_CFLAGS/ppc   = -g+
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DEBUG_CFLAGS += $(DEBUG_CFLAGS/$(BUILDARCH))+
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ifeq ($(DEBUG_CFLAGS/$(BUILDARCH)),)+
−
DEBUG_CFLAGS += -gstabs+
−
endif+
−
+
−
# DEBUG_BINARIES overrides everything, use full -g debug information+
−
ifeq ($(DEBUG_BINARIES), true)+
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  DEBUG_CFLAGS = -g+
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  CFLAGS += $(DEBUG_CFLAGS)+
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endif+
−
+
−
# If we are building HEADLESS, pass on to VM+
−
# so it can set the java.awt.headless property+
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ifdef HEADLESS+
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CFLAGS += -DHEADLESS+
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endif+
−
+
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# We are building Embedded for a small device+
−
# favor code space over speed+
−
ifdef MINIMIZE_RAM_USAGE+
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CFLAGS += -DMINIMIZE_RAM_USAGE+
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endif+
−