never@3156: #
never@3156: # Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved.
never@3156: # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
never@3156: #
never@3156: # This code is free software; you can redistribute it and/or modify it
never@3156: # under the terms of the GNU General Public License version 2 only, as
never@3156: # published by the Free Software Foundation.
never@3156: #
never@3156: # This code is distributed in the hope that it will be useful, but WITHOUT
never@3156: # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
never@3156: # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
never@3156: # version 2 for more details (a copy is included in the LICENSE file that
never@3156: # accompanied this code).
never@3156: #
never@3156: # You should have received a copy of the GNU General Public License version
never@3156: # 2 along with this work; if not, write to the Free Software Foundation,
never@3156: # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
never@3156: #
never@3156: # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
never@3156: # or visit www.oracle.com if you need additional information or have any
never@3156: # questions.
never@3156: #  
never@3156: #
never@3156: 
never@3156: OS_VENDOR = $(shell uname -s)
never@3156: 
never@3156: #------------------------------------------------------------------------
erikj@3518: # CC, CXX & AS
never@3156: 
erikj@3600: # If a SPEC is not set already, then use these defaults.
erikj@3600: ifeq ($(SPEC),)
erikj@3600:   # When cross-compiling the ALT_COMPILER_PATH points
erikj@3600:   # to the cross-compilation toolset
erikj@3600:   ifdef CROSS_COMPILE_ARCH
erikj@3600:     CXX = $(ALT_COMPILER_PATH)/g++
erikj@3600:     CC  = $(ALT_COMPILER_PATH)/gcc
erikj@3600:     HOSTCXX = g++
erikj@3600:     HOSTCC  = gcc
erikj@3600:   else ifneq ($(OS_VENDOR), Darwin)
erikj@3600:     CXX = g++
erikj@3600:     CC  = gcc
erikj@3600:     HOSTCXX = $(CXX)
erikj@3600:     HOSTCC  = $(CC)
erikj@3600:   endif
erikj@3600: 
erikj@3600:   # i486 hotspot requires -mstackrealign on Darwin.
erikj@3600:   # llvm-gcc supports this in Xcode 3.2.6 and 4.0.
erikj@3600:   # gcc-4.0 supports this on earlier versions.
erikj@3600:   # Prefer llvm-gcc where available.
erikj@3600:   ifeq ($(OS_VENDOR), Darwin)
erikj@3600:     ifeq ($(origin CXX), default)
erikj@3600:       CXX = llvm-g++
erikj@3600:     endif
erikj@3600:     ifeq ($(origin CC), default)
erikj@3600:       CC  = llvm-gcc
erikj@3600:     endif
erikj@3600: 
erikj@3600:     ifeq ($(ARCH), i486)
erikj@3600:       LLVM_SUPPORTS_STACKREALIGN := $(shell \
erikj@3600:        [ "0"`llvm-gcc -v 2>&1 | grep LLVM | sed -E "s/.*LLVM build ([0-9]+).*/\1/"` -gt "2333" ] \
erikj@3600:        && echo true || echo false)
erikj@3600: 
erikj@3600:       ifeq ($(LLVM_SUPPORTS_STACKREALIGN), true)
erikj@3600:         CXX32 ?= llvm-g++
erikj@3600:         CC32  ?= llvm-gcc
erikj@3600:       else
erikj@3600:         CXX32 ?= g++-4.0
erikj@3600:         CC32  ?= gcc-4.0
erikj@3600:       endif
erikj@3600:       CXX = $(CXX32)
erikj@3600:       CC  = $(CC32)
erikj@3600:     endif
erikj@3600: 
erikj@3600:     HOSTCXX = $(CXX)
erikj@3600:     HOSTCC  = $(CC)
erikj@3600:   endif
erikj@3600: 
erikj@3600:   AS   = $(CC) -c -x assembler-with-cpp
dcubed@3202: endif
dcubed@3202: 
never@3156: 
never@3156: # -dumpversion in gcc-2.91 shows "egcs-2.91.66". In later version, it only
never@3156: # prints the numbers (e.g. "2.95", "3.2.1")
never@3156: CC_VER_MAJOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f1)
never@3156: CC_VER_MINOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f2)
never@3156: 
never@3156: # check for precompiled headers support
never@3156: ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 3 \) \| \( \( $(CC_VER_MAJOR) = 3 \) \& \( $(CC_VER_MINOR) \>= 4 \) \))" "0"
never@3156: # Allow the user to turn off precompiled headers from the command line.
never@3156: ifneq ($(USE_PRECOMPILED_HEADER),0)
never@3156: PRECOMPILED_HEADER_DIR=.
brutisso@3229: PRECOMPILED_HEADER_SRC=$(GAMMADIR)/src/share/vm/precompiled/precompiled.hpp
never@3156: PRECOMPILED_HEADER=$(PRECOMPILED_HEADER_DIR)/precompiled.hpp.gch
never@3156: endif
never@3156: endif
never@3156: 
never@3156: 
never@3156: #------------------------------------------------------------------------
never@3156: # Compiler flags
never@3156: 
never@3156: # position-independent code
never@3156: PICFLAG = -fPIC
never@3156: 
never@3156: VM_PICFLAG/LIBJVM = $(PICFLAG)
never@3156: VM_PICFLAG/AOUT   =
never@3156: VM_PICFLAG        = $(VM_PICFLAG/$(LINK_INTO))
never@3156: 
never@3156: ifeq ($(ZERO_BUILD), true)
never@3156: CFLAGS += $(LIBFFI_CFLAGS)
never@3156: endif
never@3156: ifeq ($(SHARK_BUILD), true)
never@3156: CFLAGS += $(LLVM_CFLAGS)
never@3156: endif
never@3156: CFLAGS += $(VM_PICFLAG)
never@3156: CFLAGS += -fno-rtti
never@3156: CFLAGS += -fno-exceptions
never@3156: CFLAGS += -pthread
never@3156: CFLAGS += -fcheck-new
never@3156: # version 4 and above support fvisibility=hidden (matches jni_x86.h file)
never@3156: # except 4.1.2 gives pointless warnings that can't be disabled (afaik)
never@3156: ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0"
never@3156: CFLAGS += -fvisibility=hidden
never@3156: endif
never@3156: 
never@3156: ARCHFLAG = $(ARCHFLAG/$(BUILDARCH))
never@3156: ARCHFLAG/i486    = -m32 -march=i586
never@3156: ARCHFLAG/amd64   = -m64
never@3156: ARCHFLAG/ia64    =
never@3156: ARCHFLAG/sparc   = -m32 -mcpu=v9
never@3156: ARCHFLAG/sparcv9 = -m64 -mcpu=v9
never@3156: ARCHFLAG/zero    = $(ZERO_ARCHFLAG)
never@3156: 
never@3156: # Darwin-specific build flags
never@3156: ifeq ($(OS_VENDOR), Darwin)
never@3156:   # Ineffecient 16-byte stack re-alignment on Darwin/IA32
never@3156:   ARCHFLAG/i486 += -mstackrealign
never@3156: endif
never@3156: 
never@3156: CFLAGS     += $(ARCHFLAG)
never@3156: AOUT_FLAGS += $(ARCHFLAG)
never@3156: LFLAGS     += $(ARCHFLAG)
never@3156: ASFLAGS    += $(ARCHFLAG)
never@3156: 
never@3156: ifdef E500V2
never@3156: CFLAGS += -DE500V2
never@3156: endif
never@3156: 
never@3156: # Use C++ Interpreter
never@3156: ifdef CC_INTERP
never@3156:   CFLAGS += -DCC_INTERP
never@3156: endif
never@3156: 
never@3156: # Build for embedded targets
never@3156: ifdef JAVASE_EMBEDDED
never@3156:   CFLAGS += -DJAVASE_EMBEDDED
never@3156: endif
never@3156: 
never@3156: # Keep temporary files (.ii, .s)
never@3156: ifdef NEED_ASM
never@3156:   CFLAGS += -save-temps
never@3156: else
never@3156:   CFLAGS += -pipe
never@3156: endif
never@3156: 
never@3156: # Compiler warnings are treated as errors
dcubed@3202: ifneq ($(COMPILER_WARNINGS_FATAL),false)
dcubed@3202:   WARNINGS_ARE_ERRORS = -Werror
dcubed@3202: endif
never@3156: 
never@3156: # Except for a few acceptable ones
never@3156: # Since GCC 4.3, -Wconversion has changed its meanings to warn these implicit
never@3156: # conversions which might affect the values. To avoid that, we need to turn
never@3156: # it off explicitly. 
never@3156: ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0"
never@3156: ACCEPTABLE_WARNINGS = -Wpointer-arith -Wsign-compare
never@3156: else
never@3156: ACCEPTABLE_WARNINGS = -Wpointer-arith -Wconversion -Wsign-compare
never@3156: endif
never@3156: 
never@3156: CFLAGS_WARN/DEFAULT = $(WARNINGS_ARE_ERRORS) $(ACCEPTABLE_WARNINGS)
never@3156: # Special cases
never@3156: CFLAGS_WARN/BYFILE = $(CFLAGS_WARN/$@)$(CFLAGS_WARN/DEFAULT$(CFLAGS_WARN/$@)) 
never@3156: # XXXDARWIN: for _dyld_bind_fully_image_containing_address
never@3156: ifeq ($(OS_VENDOR), Darwin)
never@3156:   CFLAGS_WARN/os_bsd.o = $(CFLAGS_WARN/DEFAULT) -Wno-deprecated-declarations
never@3156: endif
never@3156: 
never@3156: 
never@3156: # The flags to use for an Optimized g++ build
dcubed@3202: ifeq ($(OS_VENDOR), Darwin)
dcubed@3202:   # use -Os by default, unless -O3 can be proved to be worth the cost, as per policy
dcubed@3202:   # <http://wikis.sun.com/display/OpenJDK/Mac+OS+X+Port+Compilers>
dcubed@3202:   OPT_CFLAGS += -Os
dcubed@3202: else
dcubed@3202:   OPT_CFLAGS += -O3
dcubed@3202: endif
never@3156: 
never@3156: # Hotspot uses very unstrict aliasing turn this optimization off
never@3156: OPT_CFLAGS += -fno-strict-aliasing
never@3156: 
never@3156: # The gcc compiler segv's on ia64 when compiling bytecodeInterpreter.cpp 
never@3156: # if we use expensive-optimizations
never@3156: ifeq ($(BUILDARCH), ia64)
never@3156: OPT_CFLAGS += -fno-expensive-optimizations
never@3156: endif
never@3156: 
never@3156: OPT_CFLAGS/NOOPT=-O0
never@3156: 
never@3156: # 6835796. Problem in GCC 4.3.0 with mulnode.o optimized compilation. 
never@3156: ifneq "$(shell expr \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) = 3 \) \))" "0"
never@3156: OPT_CFLAGS/mulnode.o += -O0
never@3156: endif
never@3156: 
never@3156: # Flags for generating make dependency flags.
never@3156: ifneq ("${CC_VER_MAJOR}", "2")
never@3156: DEPFLAGS = -MMD -MP -MF $(DEP_DIR)/$(@:%=%.d)
never@3156: endif
never@3156: 
never@3156: # -DDONT_USE_PRECOMPILED_HEADER will exclude all includes in precompiled.hpp.
stefank@3325: ifeq ($(USE_PRECOMPILED_HEADER),0)
never@3156: CFLAGS += -DDONT_USE_PRECOMPILED_HEADER
never@3156: endif
never@3156: 
never@3156: #------------------------------------------------------------------------
never@3156: # Linker flags
never@3156: 
never@3156: # statically link libstdc++.so, work with gcc but ignored by g++
never@3156: STATIC_STDCXX = -Wl,-Bstatic -lstdc++ -Wl,-Bdynamic
never@3156: 
never@3156: # statically link libgcc and/or libgcc_s, libgcc does not exist before gcc-3.x.
never@3156: ifneq ("${CC_VER_MAJOR}", "2")
never@3156: STATIC_LIBGCC += -static-libgcc
never@3156: endif
never@3156: 
never@3156: ifeq ($(BUILDARCH), ia64)
never@3156: LFLAGS += -Wl,-relax
never@3156: endif
never@3156: 
never@3156: # Use $(MAPFLAG:FILENAME=real_file_name) to specify a map file.
never@3156: MAPFLAG = -Xlinker --version-script=FILENAME
never@3156: 
never@3156: #
never@3156: # Shared Library
never@3156: #
never@3156: ifeq ($(OS_VENDOR), Darwin)
never@3156:   # Standard linker flags
never@3156:   LFLAGS +=
never@3156: 
never@3156:   # Darwin doesn't use ELF and doesn't support version scripts
never@3156:   LDNOMAP = true
never@3156: 
never@3156:   # Use $(SONAMEFLAG:SONAME=soname) to specify the intrinsic name of a shared obj
never@3156:   SONAMEFLAG =
never@3156: 
never@3156:   # Build shared library
dcubed@3202:   SHARED_FLAG = -Wl,-install_name,@rpath/$(@F) -dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $(VM_PICFLAG)
never@3156: 
never@3156:   # Keep symbols even they are not used
never@3156:   #AOUT_FLAGS += -Xlinker -export-dynamic
never@3156: else
never@3156:   # Enable linker optimization
never@3156:   LFLAGS += -Xlinker -O1
never@3156: 
never@3156:   # Use $(SONAMEFLAG:SONAME=soname) to specify the intrinsic name of a shared obj
never@3156:   SONAMEFLAG = -Xlinker -soname=SONAME
never@3156: 
never@3156:   # Build shared library
never@3156:   SHARED_FLAG = -shared $(VM_PICFLAG)
never@3156: 
never@3156:   # Keep symbols even they are not used
never@3156:   AOUT_FLAGS += -Xlinker -export-dynamic
never@3156: endif
never@3156: 
never@3156: #------------------------------------------------------------------------
never@3156: # Debug flags
never@3156: 
never@3156: # Use the stabs format for debugging information (this is the default
never@3156: # on gcc-2.91). It's good enough, has all the information about line
never@3156: # numbers and local variables, and libjvm_g.so is only about 16M.
never@3156: # Change this back to "-g" if you want the most expressive format.
never@3156: # (warning: that could easily inflate libjvm_g.so to 150M!)
never@3156: # Note: The Itanium gcc compiler crashes when using -gstabs.
never@3156: DEBUG_CFLAGS/ia64  = -g
never@3156: DEBUG_CFLAGS/amd64 = -g
never@3156: DEBUG_CFLAGS/arm   = -g
never@3156: DEBUG_CFLAGS/ppc   = -g
never@3156: DEBUG_CFLAGS += $(DEBUG_CFLAGS/$(BUILDARCH))
never@3156: ifeq ($(DEBUG_CFLAGS/$(BUILDARCH)),)
never@3156: DEBUG_CFLAGS += -gstabs
never@3156: endif
never@3156: 
never@3156: # DEBUG_BINARIES overrides everything, use full -g debug information
never@3156: ifeq ($(DEBUG_BINARIES), true)
never@3156:   DEBUG_CFLAGS = -g
never@3156:   CFLAGS += $(DEBUG_CFLAGS)
never@3156: endif
never@3156: 
never@3156: # If we are building HEADLESS, pass on to VM
never@3156: # so it can set the java.awt.headless property
never@3156: ifdef HEADLESS
never@3156: CFLAGS += -DHEADLESS
never@3156: endif
never@3156: 
never@3156: # We are building Embedded for a small device
never@3156: # favor code space over speed
never@3156: ifdef MINIMIZE_RAM_USAGE
never@3156: CFLAGS += -DMINIMIZE_RAM_USAGE
never@3156: endif