aoqi@0: #
dbuck@9186: # Copyright (c) 1999, 2018, Oracle and/or its affiliates. All rights reserved.
aoqi@0: # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0: #
aoqi@0: # This code is free software; you can redistribute it and/or modify it
aoqi@0: # under the terms of the GNU General Public License version 2 only, as
aoqi@0: # published by the Free Software Foundation.
aoqi@0: #
aoqi@0: # This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0: # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0: # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0: # version 2 for more details (a copy is included in the LICENSE file that
aoqi@0: # accompanied this code).
aoqi@0: #
aoqi@0: # You should have received a copy of the GNU General Public License version
aoqi@0: # 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0: # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0: #
aoqi@0: # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0: # or visit www.oracle.com if you need additional information or have any
aoqi@0: # questions.
aoqi@0: #  
aoqi@0: #
aoqi@0: 
aoqi@1: #
aoqi@1: # This file has been modified by Loongson Technology in 2015. These
aoqi@1: # modifications are Copyright (c) 2015 Loongson Technology, and are made
aoqi@1: # available on the same license terms set forth above.
aoqi@1: #
aoqi@1: 
aoqi@0: #------------------------------------------------------------------------
aoqi@0: # CC, CXX & AS
aoqi@0: 
aoqi@0: # If a SPEC is not set already, then use these defaults.
aoqi@0: ifeq ($(SPEC),)
aoqi@0:   # When cross-compiling the ALT_COMPILER_PATH points
aoqi@0:   # to the cross-compilation toolset
aoqi@0:   ifdef CROSS_COMPILE_ARCH
aoqi@0:     CXX = $(ALT_COMPILER_PATH)/g++
aoqi@0:     CC  = $(ALT_COMPILER_PATH)/gcc
aoqi@0:     HOSTCXX = g++
aoqi@0:     HOSTCC  = gcc
aoqi@0:     STRIP = $(ALT_COMPILER_PATH)/strip
aoqi@0:   else
aoqi@0:     ifeq ($(USE_CLANG), true)
aoqi@0:       CXX = clang++
aoqi@0:       CC  = clang
aoqi@0:     else
aoqi@0:       CXX = g++
aoqi@0:       CC  = gcc
aoqi@0:     endif
aoqi@0: 
aoqi@0:     HOSTCXX = $(CXX)
aoqi@0:     HOSTCC  = $(CC)
aoqi@0:     STRIP = strip
aoqi@0:   endif
aoqi@0:   AS  = $(CC) -c
aoqi@0: endif
aoqi@0: 
aoqi@0: 
aoqi@0: ifeq ($(USE_CLANG), true)
aoqi@0:   CC_VER_MAJOR := $(shell $(CC) -v 2>&1 | grep version | sed "s/.*version \([0-9]*\.[0-9]*\).*/\1/" | cut -d'.' -f1)
aoqi@0:   CC_VER_MINOR := $(shell $(CC) -v 2>&1 | grep version | sed "s/.*version \([0-9]*\.[0-9]*\).*/\1/" | cut -d'.' -f2)
aoqi@0: else
aoqi@0:   # -dumpversion in gcc-2.91 shows "egcs-2.91.66". In later version, it only
aoqi@0:   # prints the numbers (e.g. "2.95", "3.2.1")
aoqi@0:   CC_VER_MAJOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f1)
aoqi@0:   CC_VER_MINOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f2)
aoqi@0: endif
aoqi@0: 
aoqi@0: 
aoqi@0: ifeq ($(USE_CLANG), true)
aoqi@0:   # Clang has precompiled headers support by default, but the user can switch
aoqi@0:   # it off by using 'USE_PRECOMPILED_HEADER=0'.
aoqi@0:   ifdef LP64
aoqi@0:     ifeq ($(USE_PRECOMPILED_HEADER),)
aoqi@0:       USE_PRECOMPILED_HEADER=1
aoqi@0:     endif
aoqi@0:   else
aoqi@0:     # We don't support precompiled headers on 32-bit builds because there some files are
aoqi@0:     # compiled with -fPIC while others are compiled without (see 'NONPIC_OBJ_FILES' rules.make)
aoqi@0:     # Clang produces an error if the PCH file was compiled with other options than the actual compilation unit.
aoqi@0:     USE_PRECOMPILED_HEADER=0
aoqi@0:   endif
aoqi@0: 
aoqi@0:   ifeq ($(USE_PRECOMPILED_HEADER),1)
aoqi@0: 
aoqi@0:     ifndef LP64
aoqi@0:       $(error " Precompiled Headers only supported on 64-bit platforms!")
aoqi@0:     endif
aoqi@0: 
aoqi@0:     PRECOMPILED_HEADER_DIR=.
aoqi@0:     PRECOMPILED_HEADER_SRC=$(GAMMADIR)/src/share/vm/precompiled/precompiled.hpp
aoqi@0:     PRECOMPILED_HEADER=$(PRECOMPILED_HEADER_DIR)/precompiled.hpp.pch
aoqi@0: 
aoqi@0:     PCH_FLAG = -include precompiled.hpp
aoqi@0:     PCH_FLAG/DEFAULT = $(PCH_FLAG)
aoqi@0:     PCH_FLAG/NO_PCH = -DNO_PCH
aoqi@0:     PCH_FLAG/BY_FILE = $(PCH_FLAG/$@)$(PCH_FLAG/DEFAULT$(PCH_FLAG/$@))
aoqi@0: 
aoqi@0:     VM_PCH_FLAG/LIBJVM = $(PCH_FLAG/BY_FILE)
aoqi@0:     VM_PCH_FLAG/AOUT =
aoqi@0:     VM_PCH_FLAG = $(VM_PCH_FLAG/$(LINK_INTO))
aoqi@0: 
aoqi@0:     # We only use precompiled headers for the JVM build
aoqi@0:     CFLAGS += $(VM_PCH_FLAG)
aoqi@0: 
aoqi@0:     # There are some files which don't like precompiled headers
aoqi@0:     # The following files are build with 'OPT_CFLAGS/NOOPT' (-O0) in the opt build.
aoqi@0:     # But Clang doesn't support a precompiled header which was compiled with -O3
aoqi@0:     # to be used in a compilation unit which uses '-O0'. We could also prepare an
aoqi@0:     # extra '-O0' PCH file for the opt build and use it here, but it's probably
aoqi@0:     # not worth the effoert as long as only two files need this special handling.
aoqi@0:     PCH_FLAG/loopTransform.o = $(PCH_FLAG/NO_PCH)
aoqi@0:     PCH_FLAG/sharedRuntimeTrig.o = $(PCH_FLAG/NO_PCH)
aoqi@0:     PCH_FLAG/sharedRuntimeTrans.o = $(PCH_FLAG/NO_PCH)
aoqi@0: 
aoqi@0:   endif
aoqi@0: else # ($(USE_CLANG), true)
aoqi@0:   # check for precompiled headers support
aoqi@0:   ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 3 \) \| \( \( $(CC_VER_MAJOR) = 3 \) \& \( $(CC_VER_MINOR) \>= 4 \) \))" "0"
aoqi@0:     # Allow the user to turn off precompiled headers from the command line.
aoqi@0:     ifneq ($(USE_PRECOMPILED_HEADER),0)
aoqi@0:       PRECOMPILED_HEADER_DIR=.
aoqi@0:       PRECOMPILED_HEADER_SRC=$(GAMMADIR)/src/share/vm/precompiled/precompiled.hpp
aoqi@0:       PRECOMPILED_HEADER=$(PRECOMPILED_HEADER_DIR)/precompiled.hpp.gch
aoqi@0:     endif
aoqi@0:   endif
aoqi@0: endif
aoqi@0: 
aoqi@0: # -DDONT_USE_PRECOMPILED_HEADER will exclude all includes in precompiled.hpp.
aoqi@0: ifeq ($(USE_PRECOMPILED_HEADER),0)
aoqi@0:   CFLAGS += -DDONT_USE_PRECOMPILED_HEADER
aoqi@0: endif
aoqi@0: 
aoqi@0: 
aoqi@0: #------------------------------------------------------------------------
aoqi@0: # Compiler flags
aoqi@0: 
aoqi@0: # position-independent code
aoqi@0: PICFLAG = -fPIC
aoqi@0: 
aoqi@0: VM_PICFLAG/LIBJVM = $(PICFLAG)
aoqi@0: VM_PICFLAG/AOUT   =
aoqi@0: VM_PICFLAG        = $(VM_PICFLAG/$(LINK_INTO))
aoqi@0: 
aoqi@0: ifeq ($(JVM_VARIANT_ZERO), true)
aoqi@0: CFLAGS += $(LIBFFI_CFLAGS)
aoqi@0: endif
aoqi@0: ifeq ($(JVM_VARIANT_ZEROSHARK), true)
aoqi@0: CFLAGS += $(LIBFFI_CFLAGS)
aoqi@0: CFLAGS += $(LLVM_CFLAGS)
aoqi@0: endif
aoqi@0: CFLAGS += $(VM_PICFLAG)
aoqi@0: CFLAGS += -fno-rtti
aoqi@0: CFLAGS += -fno-exceptions
aoqi@0: CFLAGS += -D_REENTRANT
aoqi@0: ifeq ($(USE_CLANG),)
aoqi@0:   CFLAGS += -fcheck-new
aoqi@0:   # version 4 and above support fvisibility=hidden (matches jni_x86.h file)
aoqi@0:   # except 4.1.2 gives pointless warnings that can't be disabled (afaik)
aoqi@0:   ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0"
aoqi@0:     CFLAGS += -fvisibility=hidden
aoqi@0:   endif
aoqi@0: else
aoqi@0:   CFLAGS += -fvisibility=hidden
aoqi@0: endif
aoqi@0: 
aoqi@0: ifeq ($(USE_CLANG), true)
aoqi@0:   # Before Clang 3.1, we had to pass the stack alignment specification directly to llvm with the help of '-mllvm'
aoqi@0:   # Starting with version 3.1, Clang understands the '-mstack-alignment' (and rejects '-mllvm -stack-alignment')
aoqi@0:   ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 3 \) \| \( \( $(CC_VER_MAJOR) = 3 \) \& \( $(CC_VER_MINOR) \>= 1 \) \))" "0"
aoqi@0:     STACK_ALIGNMENT_OPT = -mno-omit-leaf-frame-pointer -mstack-alignment=16
aoqi@0:   else
aoqi@0:     STACK_ALIGNMENT_OPT = -mno-omit-leaf-frame-pointer -mllvm -stack-alignment=16
aoqi@0:   endif
aoqi@0: endif
aoqi@0: 
aoqi@0: ARCHFLAG = $(ARCHFLAG/$(BUILDARCH))
aoqi@0: ARCHFLAG/i486    = -m32 -march=i586
aoqi@0: ARCHFLAG/amd64   = -m64 $(STACK_ALIGNMENT_OPT)
aoqi@0: ARCHFLAG/ia64    =
aoqi@0: ARCHFLAG/sparc   = -m32 -mcpu=v9
aoqi@0: ARCHFLAG/sparcv9 = -m64 -mcpu=v9
aoqi@183: ARCHFLAG/mips64  = -mabi=64
aoqi@0: ARCHFLAG/zero    = $(ZERO_ARCHFLAG)
aoqi@0: ARCHFLAG/ppc64   =  -m64
aoqi@0: 
aoqi@0: CFLAGS     += $(ARCHFLAG)
aoqi@0: AOUT_FLAGS += $(ARCHFLAG)
aoqi@0: LFLAGS     += $(ARCHFLAG)
aoqi@0: ASFLAGS    += $(ARCHFLAG)
aoqi@0: 
sgehwolf@9484: ifeq ($(DEBUG_BINARIES), true)
sgehwolf@9484:   ASFLAGS    += $(ASFLAGS_DEBUG_SYMBOLS)
sgehwolf@9484: endif
sgehwolf@9484: 
aoqi@0: # Use C++ Interpreter
aoqi@0: ifdef CC_INTERP
aoqi@0:   CFLAGS += -DCC_INTERP
aoqi@0: endif
aoqi@0: 
aoqi@0: # Keep temporary files (.ii, .s)
aoqi@0: ifdef NEED_ASM
aoqi@0:   CFLAGS += -save-temps
aoqi@0: else
aoqi@0:   CFLAGS += -pipe
aoqi@0: endif
aoqi@0: 
aoqi@0: # Compiler warnings are treated as errors
aoqi@1: #WARNINGS_ARE_ERRORS = -Werror
aoqi@0: 
aoqi@0: ifeq ($(USE_CLANG), true)
aoqi@0:   # However we need to clean the code up before we can unrestrictedly enable this option with Clang
aoqi@0:   WARNINGS_ARE_ERRORS += -Wno-logical-op-parentheses -Wno-parentheses-equality -Wno-parentheses
aoqi@0:   WARNINGS_ARE_ERRORS += -Wno-switch -Wno-tautological-constant-out-of-range-compare -Wno-tautological-compare
aoqi@0:   WARNINGS_ARE_ERRORS += -Wno-delete-non-virtual-dtor -Wno-deprecated -Wno-format -Wno-dynamic-class-memaccess
aoqi@0:   WARNINGS_ARE_ERRORS += -Wno-return-type -Wno-empty-body
aoqi@0: endif
aoqi@0: 
aoqi@0: WARNING_FLAGS = -Wpointer-arith -Wsign-compare -Wundef -Wunused-function -Wunused-value
aoqi@0: 
aoqi@0: ifeq ($(USE_CLANG),)
aoqi@0:   # Since GCC 4.3, -Wconversion has changed its meanings to warn these implicit
aoqi@0:   # conversions which might affect the values. Only enable it in earlier versions.
aoqi@0:   ifeq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0"
aoqi@0:     WARNING_FLAGS += -Wconversion
aoqi@0:   endif
aoqi@0: endif
aoqi@0: 
aoqi@0: CFLAGS_WARN/DEFAULT = $(WARNINGS_ARE_ERRORS) $(WARNING_FLAGS)
aoqi@0: # Special cases
aoqi@0: CFLAGS_WARN/BYFILE = $(CFLAGS_WARN/$@)$(CFLAGS_WARN/DEFAULT$(CFLAGS_WARN/$@)) 
aoqi@0: 
aoqi@0: # The flags to use for an Optimized g++ build
aoqi@0: OPT_CFLAGS/SIZE=-Os
aoqi@0: OPT_CFLAGS/SPEED=-O3
aoqi@0: 
aoqi@0: # Hotspot uses very unstrict aliasing turn this optimization off
aoqi@0: # This option is added to CFLAGS rather than OPT_CFLAGS
aoqi@0: # so that OPT_CFLAGS overrides get this option too.
aoqi@0: CFLAGS += -fno-strict-aliasing 
aoqi@0: 
aoqi@0: OPT_CFLAGS_DEFAULT ?= SPEED
aoqi@0: 
aoqi@0: ifdef OPT_CFLAGS
aoqi@0:   ifneq ("$(origin OPT_CFLAGS)", "command line")
aoqi@0:     $(error " Use OPT_EXTRAS instead of OPT_CFLAGS to add extra flags to OPT_CFLAGS.")
aoqi@0:   endif
aoqi@0: endif
aoqi@0: 
aoqi@0: OPT_CFLAGS = $(OPT_CFLAGS/$(OPT_CFLAGS_DEFAULT)) $(OPT_EXTRAS)
aoqi@0: 
aoqi@0: # The gcc compiler segv's on ia64 when compiling bytecodeInterpreter.cpp 
aoqi@0: # if we use expensive-optimizations
aoqi@0: ifeq ($(BUILDARCH), ia64)
aoqi@0: OPT_CFLAGS += -fno-expensive-optimizations
aoqi@0: endif
aoqi@0: 
aoqi@0: OPT_CFLAGS/NOOPT=-O0
aoqi@0: 
aoqi@0: # Work around some compiler bugs.
aoqi@0: ifeq ($(USE_CLANG), true)
aoqi@0:   ifeq ($(shell expr $(CC_VER_MAJOR) = 4 \& $(CC_VER_MINOR) = 2), 1)
aoqi@0:     OPT_CFLAGS/loopTransform.o += $(OPT_CFLAGS/NOOPT)
aoqi@0:   endif
aoqi@0: else
aoqi@0:   # 6835796. Problem in GCC 4.3.0 with mulnode.o optimized compilation.
aoqi@0:   ifeq ($(shell expr $(CC_VER_MAJOR) = 4 \& $(CC_VER_MINOR) = 3), 1)
aoqi@0:     OPT_CFLAGS/mulnode.o += $(OPT_CFLAGS/NOOPT)
aoqi@0:   endif
aoqi@0: endif
aoqi@0: 
aoqi@0: # Flags for generating make dependency flags.
aoqi@0: DEPFLAGS = -MMD -MP -MF $(DEP_DIR)/$(@:%=%.d)
aoqi@0: ifeq ($(USE_CLANG),)
aoqi@0:   ifneq ("${CC_VER_MAJOR}", "2")
aoqi@0:     DEPFLAGS += -fpch-deps
aoqi@0:   endif
aoqi@0: endif
aoqi@0: 
aoqi@0: #------------------------------------------------------------------------
aoqi@0: # Linker flags
aoqi@0: 
aoqi@0: # statically link libstdc++.so, work with gcc but ignored by g++
aoqi@0: STATIC_STDCXX = -Wl,-Bstatic -lstdc++ -Wl,-Bdynamic
kevinw@9516: # While the VM needs the above line, adlc needs a separate setting:
kevinw@9516: ADLC_STATIC_STDCXX = -static-libstdc++
aoqi@0: 
aoqi@0: ifeq ($(USE_CLANG),)
aoqi@0:   # statically link libgcc and/or libgcc_s, libgcc does not exist before gcc-3.x.
aoqi@0:   ifneq ("${CC_VER_MAJOR}", "2")
aoqi@0:     STATIC_LIBGCC += -static-libgcc
aoqi@0:   endif
aoqi@0: 
aoqi@0:   ifeq ($(BUILDARCH), ia64)
aoqi@0:     LFLAGS += -Wl,-relax
aoqi@0:   endif
aoqi@0: endif
aoqi@0: 
aoqi@0: # Enable linker optimization
aoqi@0: LFLAGS += -Xlinker -O1
aoqi@0: 
aoqi@0: ifeq ($(USE_CLANG),)
aoqi@0:   # If this is a --hash-style=gnu system, use --hash-style=both
aoqi@0:   #   The gnu .hash section won't work on some Linux systems like SuSE 10.
aoqi@0:   _HAS_HASH_STYLE_GNU:=$(shell $(CC) -dumpspecs | grep -- '--hash-style=gnu')
aoqi@0:   ifneq ($(_HAS_HASH_STYLE_GNU),)
aoqi@0:     LDFLAGS_HASH_STYLE = -Wl,--hash-style=both
aoqi@0:   endif
aoqi@0: else
aoqi@0:   # Don't know how to find out the 'hash style' of a system as '-dumpspecs'
aoqi@0:   # doesn't work for Clang. So for now we'll alwys use --hash-style=both
aoqi@0:   LDFLAGS_HASH_STYLE = -Wl,--hash-style=both
aoqi@0: endif
aoqi@0: 
aoqi@0: LFLAGS += $(LDFLAGS_HASH_STYLE)
aoqi@0: 
dbuck@9186: LDFLAGS_NO_EXEC_STACK="-Wl,-z,noexecstack"
dbuck@9186: 
aoqi@0: # Use $(MAPFLAG:FILENAME=real_file_name) to specify a map file.
aoqi@0: MAPFLAG = -Xlinker --version-script=FILENAME
aoqi@0: 
aoqi@0: # Use $(SONAMEFLAG:SONAME=soname) to specify the intrinsic name of a shared obj
aoqi@0: SONAMEFLAG = -Xlinker -soname=SONAME
aoqi@0: 
aoqi@0: # Build shared library
aoqi@0: SHARED_FLAG = -shared
aoqi@0: 
aoqi@0: # Keep symbols even they are not used
aoqi@0: AOUT_FLAGS += -Xlinker -export-dynamic
aoqi@0: 
aoqi@0: #------------------------------------------------------------------------
aoqi@0: # Debug flags
aoqi@0: 
aoqi@0: ifeq ($(USE_CLANG), true)
aoqi@0:   # Restrict the debug information created by Clang to avoid
aoqi@0:   # too big object files and speed the build up a little bit
aoqi@0:   # (see http://llvm.org/bugs/show_bug.cgi?id=7554)
aoqi@0:   CFLAGS += -flimit-debug-info
aoqi@0: endif
aoqi@0: 
aoqi@0: # DEBUG_BINARIES uses full -g debug information for all configs
aoqi@0: ifeq ($(DEBUG_BINARIES), true)
aoqi@0:   CFLAGS += -g
aoqi@0: else
aoqi@0:   DEBUG_CFLAGS += $(DEBUG_CFLAGS/$(BUILDARCH))
aoqi@0:   ifeq ($(DEBUG_CFLAGS/$(BUILDARCH)),)
dbuck@9426:     DEBUG_CFLAGS += -g
aoqi@0:   endif
aoqi@0:   
aoqi@0:   ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
dlong@7615:     FASTDEBUG_CFLAGS += $(FASTDEBUG_CFLAGS/$(BUILDARCH))
aoqi@0:     ifeq ($(FASTDEBUG_CFLAGS/$(BUILDARCH)),)
dbuck@9426:       FASTDEBUG_CFLAGS/$(BUILDARCH) = -g
aoqi@0:     endif
aoqi@0:   
aoqi@0:     OPT_CFLAGS += $(OPT_CFLAGS/$(BUILDARCH))
aoqi@0:     ifeq ($(OPT_CFLAGS/$(BUILDARCH)),)
dbuck@9426:       OPT_CFLAGS/$(BUILDARCH) = -g
aoqi@0:     endif
aoqi@0:   endif
aoqi@0: endif
aoqi@0: 
aoqi@0: # If we are building HEADLESS, pass on to VM
aoqi@0: # so it can set the java.awt.headless property
aoqi@0: ifdef HEADLESS
aoqi@0: CFLAGS += -DHEADLESS
aoqi@0: endif
aoqi@0: 
aoqi@0: # We are building Embedded for a small device
aoqi@0: # favor code space over speed
aoqi@0: ifdef MINIMIZE_RAM_USAGE
aoqi@0: CFLAGS += -DMINIMIZE_RAM_USAGE
aoqi@0: endif
aoqi@0: 
aoqi@0: # Stack walking in the JVM relies on frame pointer (%rbp) to walk thread stack.
aoqi@0: # Explicitly specify -fno-omit-frame-pointer because it is off by default
aoqi@0: # starting with gcc 4.6.
aoqi@0: ifndef USE_SUNCC
aoqi@0:   CFLAGS += -fno-omit-frame-pointer
aoqi@0: endif
dlong@7598: 
dlong@7598: -include $(HS_ALT_MAKE)/linux/makefiles/gcc.make