jdk8-mips64-public/hotspot: make/linux/makefiles/gcc.make@fd44df5e3bc3

1 #

     2 # Copyright (c) 1999, 2018, 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.

8 #

     9 # This code is distributed in the hope that it will be useful, but WITHOUT

    10 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12 # version 2 for more details (a copy is included in the LICENSE file that

    13 # accompanied this code).

    14 #

    15 # You should have received a copy of the GNU General Public License version

    16 # 2 along with this work; if not, write to the Free Software Foundation,

    17 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18 #

    19 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20 # or visit www.oracle.com if you need additional information or have any

    21 # questions.

    22 #

    23 #

    25 #

    26 # This file has been modified by Loongson Technology in 2015. These

    27 # modifications are Copyright (c) 2015 Loongson Technology, and are made

    28 # available on the same license terms set forth above.

    29 #

    31 #------------------------------------------------------------------------

    32 # CC, CXX & AS

    34 # If a SPEC is not set already, then use these defaults.

    35 ifeq ($(SPEC),)

    36   # When cross-compiling the ALT_COMPILER_PATH points

    37   # to the cross-compilation toolset

    38   ifdef CROSS_COMPILE_ARCH

    39     CXX = $(ALT_COMPILER_PATH)/g++

    40     CC  = $(ALT_COMPILER_PATH)/gcc

    41     HOSTCXX = g++

    42     HOSTCC  = gcc

    43     STRIP = $(ALT_COMPILER_PATH)/strip

    44   else

    45     ifeq ($(USE_CLANG), true)

    46       CXX = clang++

    47       CC  = clang

    48     else

    49       CXX = g++

    50       CC  = gcc

    51     endif

    53     HOSTCXX = $(CXX)

    54     HOSTCC  = $(CC)

    55     STRIP = strip

    56   endif

    57   AS  = $(CC) -c

    58 endif

    61 ifeq ($(USE_CLANG), true)

    62   CC_VER_MAJOR := $(shell $(CC) -v 2>&1 | grep version | sed "s/.*version \([0-9]*\.[0-9]*\).*/\1/" | cut -d'.' -f1)

    63   CC_VER_MINOR := $(shell $(CC) -v 2>&1 | grep version | sed "s/.*version \([0-9]*\.[0-9]*\).*/\1/" | cut -d'.' -f2)

    64 else

    65   # -dumpversion in gcc-2.91 shows "egcs-2.91.66". In later version, it only

    66   # prints the numbers (e.g. "2.95", "3.2.1")

    67   CC_VER_MAJOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f1)

    68   CC_VER_MINOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f2)

    69 endif

    72 ifeq ($(USE_CLANG), true)

    73   # Clang has precompiled headers support by default, but the user can switch

    74   # it off by using 'USE_PRECOMPILED_HEADER=0'.

    75   ifdef LP64

    76     ifeq ($(USE_PRECOMPILED_HEADER),)

    77       USE_PRECOMPILED_HEADER=1

    78     endif

    79   else

    80     # We don't support precompiled headers on 32-bit builds because there some files are

    81     # compiled with -fPIC while others are compiled without (see 'NONPIC_OBJ_FILES' rules.make)

    82     # Clang produces an error if the PCH file was compiled with other options than the actual compilation unit.

    83     USE_PRECOMPILED_HEADER=0

    84   endif

    86   ifeq ($(USE_PRECOMPILED_HEADER),1)

    88     ifndef LP64

    89       $(error " Precompiled Headers only supported on 64-bit platforms!")

    90     endif

    92     PRECOMPILED_HEADER_DIR=.

    93     PRECOMPILED_HEADER_SRC=$(GAMMADIR)/src/share/vm/precompiled/precompiled.hpp

    94     PRECOMPILED_HEADER=$(PRECOMPILED_HEADER_DIR)/precompiled.hpp.pch

    96     PCH_FLAG = -include precompiled.hpp

    97     PCH_FLAG/DEFAULT = $(PCH_FLAG)

    98     PCH_FLAG/NO_PCH = -DNO_PCH

    99     PCH_FLAG/BY_FILE = $(PCH_FLAG/$@)$(PCH_FLAG/DEFAULT$(PCH_FLAG/$@))

   101     VM_PCH_FLAG/LIBJVM = $(PCH_FLAG/BY_FILE)

   102     VM_PCH_FLAG/AOUT =

   103     VM_PCH_FLAG = $(VM_PCH_FLAG/$(LINK_INTO))

   105     # We only use precompiled headers for the JVM build

   106     CFLAGS += $(VM_PCH_FLAG)

   108     # There are some files which don't like precompiled headers

   109     # The following files are build with 'OPT_CFLAGS/NOOPT' (-O0) in the opt build.

   110     # But Clang doesn't support a precompiled header which was compiled with -O3

   111     # to be used in a compilation unit which uses '-O0'. We could also prepare an

   112     # extra '-O0' PCH file for the opt build and use it here, but it's probably

   113     # not worth the effoert as long as only two files need this special handling.

   114     PCH_FLAG/loopTransform.o = $(PCH_FLAG/NO_PCH)

   115     PCH_FLAG/sharedRuntimeTrig.o = $(PCH_FLAG/NO_PCH)

   116     PCH_FLAG/sharedRuntimeTrans.o = $(PCH_FLAG/NO_PCH)

   118   endif

   119 else # ($(USE_CLANG), true)

   120   # check for precompiled headers support

   121   ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 3 \) \| \( \( $(CC_VER_MAJOR) = 3 \) \& \( $(CC_VER_MINOR) \>= 4 \) \))" "0"

   122     # Allow the user to turn off precompiled headers from the command line.

   123     ifneq ($(USE_PRECOMPILED_HEADER),0)

   124       PRECOMPILED_HEADER_DIR=.

   125       PRECOMPILED_HEADER_SRC=$(GAMMADIR)/src/share/vm/precompiled/precompiled.hpp

   126       PRECOMPILED_HEADER=$(PRECOMPILED_HEADER_DIR)/precompiled.hpp.gch

   127     endif

   128   endif

   129 endif

   131 # -DDONT_USE_PRECOMPILED_HEADER will exclude all includes in precompiled.hpp.

   132 ifeq ($(USE_PRECOMPILED_HEADER),0)

   133   CFLAGS += -DDONT_USE_PRECOMPILED_HEADER

   134 endif

   137 #------------------------------------------------------------------------

   138 # Compiler flags

   140 # position-independent code

   141 PICFLAG = -fPIC

   143 VM_PICFLAG/LIBJVM = $(PICFLAG)

   144 VM_PICFLAG/AOUT   =

   145 VM_PICFLAG        = $(VM_PICFLAG/$(LINK_INTO))

   147 ifeq ($(JVM_VARIANT_ZERO), true)

   148 CFLAGS += $(LIBFFI_CFLAGS)

   149 endif

   150 ifeq ($(JVM_VARIANT_ZEROSHARK), true)

   151 CFLAGS += $(LIBFFI_CFLAGS)

   152 CFLAGS += $(LLVM_CFLAGS)

   153 endif

   154 CFLAGS += $(VM_PICFLAG)

   155 CFLAGS += -fno-rtti

   156 CFLAGS += -fno-exceptions

   157 CFLAGS += -D_REENTRANT

   158 ifeq ($(USE_CLANG),)

   159   CFLAGS += -fcheck-new

   160   # version 4 and above support fvisibility=hidden (matches jni_x86.h file)

   161   # except 4.1.2 gives pointless warnings that can't be disabled (afaik)

   162   ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0"

   163     CFLAGS += -fvisibility=hidden

   164   endif

   165 else

   166   CFLAGS += -fvisibility=hidden

   167 endif

   169 ifeq ($(USE_CLANG), true)

   170   # Before Clang 3.1, we had to pass the stack alignment specification directly to llvm with the help of '-mllvm'

   171   # Starting with version 3.1, Clang understands the '-mstack-alignment' (and rejects '-mllvm -stack-alignment')

   172   ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 3 \) \| \( \( $(CC_VER_MAJOR) = 3 \) \& \( $(CC_VER_MINOR) \>= 1 \) \))" "0"

   173     STACK_ALIGNMENT_OPT = -mno-omit-leaf-frame-pointer -mstack-alignment=16

   174   else

   175     STACK_ALIGNMENT_OPT = -mno-omit-leaf-frame-pointer -mllvm -stack-alignment=16

   176   endif

   177 endif

   179 ARCHFLAG = $(ARCHFLAG/$(BUILDARCH))

   180 ARCHFLAG/i486    = -m32 -march=i586

   181 ARCHFLAG/amd64   = -m64 $(STACK_ALIGNMENT_OPT)

   182 ARCHFLAG/ia64    =

   183 ARCHFLAG/sparc   = -m32 -mcpu=v9

   184 ARCHFLAG/sparcv9 = -m64 -mcpu=v9

   185 ARCHFLAG/mips64  = -mabi=64

   186 ARCHFLAG/zero    = $(ZERO_ARCHFLAG)

   187 ARCHFLAG/ppc64   =  -m64

   189 CFLAGS     += $(ARCHFLAG)

   190 AOUT_FLAGS += $(ARCHFLAG)

   191 LFLAGS     += $(ARCHFLAG)

   192 ASFLAGS    += $(ARCHFLAG)

   194 ifeq ($(DEBUG_BINARIES), true)

   195   ASFLAGS    += $(ASFLAGS_DEBUG_SYMBOLS)

   196 endif

   198 # Use C++ Interpreter

   199 ifdef CC_INTERP

   200   CFLAGS += -DCC_INTERP

   201 endif

   203 # Keep temporary files (.ii, .s)

   204 ifdef NEED_ASM

   205   CFLAGS += -save-temps

   206 else

   207   CFLAGS += -pipe

   208 endif

   210 # Compiler warnings are treated as errors

   211 #WARNINGS_ARE_ERRORS = -Werror

   213 ifeq ($(USE_CLANG), true)

   214   # However we need to clean the code up before we can unrestrictedly enable this option with Clang

   215   WARNINGS_ARE_ERRORS += -Wno-logical-op-parentheses -Wno-parentheses-equality -Wno-parentheses

   216   WARNINGS_ARE_ERRORS += -Wno-switch -Wno-tautological-constant-out-of-range-compare -Wno-tautological-compare

   217   WARNINGS_ARE_ERRORS += -Wno-delete-non-virtual-dtor -Wno-deprecated -Wno-format -Wno-dynamic-class-memaccess

   218   WARNINGS_ARE_ERRORS += -Wno-return-type -Wno-empty-body

   219 endif

   221 WARNING_FLAGS = -Wpointer-arith -Wsign-compare -Wundef -Wunused-function -Wunused-value

   223 ifeq ($(USE_CLANG),)

   224   # Since GCC 4.3, -Wconversion has changed its meanings to warn these implicit

   225   # conversions which might affect the values. Only enable it in earlier versions.

   226   ifeq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0"

   227     WARNING_FLAGS += -Wconversion

   228   endif

   229 endif

   231 CFLAGS_WARN/DEFAULT = $(WARNINGS_ARE_ERRORS) $(WARNING_FLAGS)

   232 # Special cases

   233 CFLAGS_WARN/BYFILE = $(CFLAGS_WARN/$@)$(CFLAGS_WARN/DEFAULT$(CFLAGS_WARN/$@))

   235 # The flags to use for an Optimized g++ build

   236 OPT_CFLAGS/SIZE=-Os

   237 OPT_CFLAGS/SPEED=-O3

   239 # Hotspot uses very unstrict aliasing turn this optimization off

   240 # This option is added to CFLAGS rather than OPT_CFLAGS

   241 # so that OPT_CFLAGS overrides get this option too.

   242 CFLAGS += -fno-strict-aliasing

   244 OPT_CFLAGS_DEFAULT ?= SPEED

   246 ifdef OPT_CFLAGS

   247   ifneq ("$(origin OPT_CFLAGS)", "command line")

   248     $(error " Use OPT_EXTRAS instead of OPT_CFLAGS to add extra flags to OPT_CFLAGS.")

   249   endif

   250 endif

   252 OPT_CFLAGS = $(OPT_CFLAGS/$(OPT_CFLAGS_DEFAULT)) $(OPT_EXTRAS)

   254 # The gcc compiler segv's on ia64 when compiling bytecodeInterpreter.cpp

   255 # if we use expensive-optimizations

   256 ifeq ($(BUILDARCH), ia64)

   257 OPT_CFLAGS += -fno-expensive-optimizations

   258 endif

   260 OPT_CFLAGS/NOOPT=-O0

   262 # Work around some compiler bugs.

   263 ifeq ($(USE_CLANG), true)

   264   ifeq ($(shell expr $(CC_VER_MAJOR) = 4 \& $(CC_VER_MINOR) = 2), 1)

   265     OPT_CFLAGS/loopTransform.o += $(OPT_CFLAGS/NOOPT)

   266   endif

   267 else

   268   # 6835796. Problem in GCC 4.3.0 with mulnode.o optimized compilation.

   269   ifeq ($(shell expr $(CC_VER_MAJOR) = 4 \& $(CC_VER_MINOR) = 3), 1)

   270     OPT_CFLAGS/mulnode.o += $(OPT_CFLAGS/NOOPT)

   271   endif

   272 endif

   274 # Flags for generating make dependency flags.

   275 DEPFLAGS = -MMD -MP -MF $(DEP_DIR)/$(@:%=%.d)

   276 ifeq ($(USE_CLANG),)

   277   ifneq ("${CC_VER_MAJOR}", "2")

   278     DEPFLAGS += -fpch-deps

   279   endif

   280 endif

   282 #------------------------------------------------------------------------

   283 # Linker flags

   285 # statically link libstdc++.so, work with gcc but ignored by g++

   286 STATIC_STDCXX = -Wl,-Bstatic -lstdc++ -Wl,-Bdynamic

   287 # While the VM needs the above line, adlc needs a separate setting:

   288 ADLC_STATIC_STDCXX = -static-libstdc++

   290 ifeq ($(USE_CLANG),)

   291   # statically link libgcc and/or libgcc_s, libgcc does not exist before gcc-3.x.

   292   ifneq ("${CC_VER_MAJOR}", "2")

   293     STATIC_LIBGCC += -static-libgcc

   294   endif

   296   ifeq ($(BUILDARCH), ia64)

   297     LFLAGS += -Wl,-relax

   298   endif

   299 endif

   301 # Enable linker optimization

   302 LFLAGS += -Xlinker -O1

   304 ifeq ($(USE_CLANG),)

   305   # If this is a --hash-style=gnu system, use --hash-style=both

   306   #   The gnu .hash section won't work on some Linux systems like SuSE 10.

   307   _HAS_HASH_STYLE_GNU:=$(shell $(CC) -dumpspecs | grep -- '--hash-style=gnu')

   308   ifneq ($(_HAS_HASH_STYLE_GNU),)

   309     LDFLAGS_HASH_STYLE = -Wl,--hash-style=both

   310   endif

   311 else

   312   # Don't know how to find out the 'hash style' of a system as '-dumpspecs'

   313   # doesn't work for Clang. So for now we'll alwys use --hash-style=both

   314   LDFLAGS_HASH_STYLE = -Wl,--hash-style=both

   315 endif

   317 LFLAGS += $(LDFLAGS_HASH_STYLE)

   319 LDFLAGS_NO_EXEC_STACK="-Wl,-z,noexecstack"

   321 # Use $(MAPFLAG:FILENAME=real_file_name) to specify a map file.

   322 MAPFLAG = -Xlinker --version-script=FILENAME

   324 # Use $(SONAMEFLAG:SONAME=soname) to specify the intrinsic name of a shared obj

   325 SONAMEFLAG = -Xlinker -soname=SONAME

   327 # Build shared library

   328 SHARED_FLAG = -shared

   330 # Keep symbols even they are not used

   331 AOUT_FLAGS += -Xlinker -export-dynamic

   333 #------------------------------------------------------------------------

   334 # Debug flags

   336 ifeq ($(USE_CLANG), true)

   337   # Restrict the debug information created by Clang to avoid

   338   # too big object files and speed the build up a little bit

   339   # (see http://llvm.org/bugs/show_bug.cgi?id=7554)

   340   CFLAGS += -flimit-debug-info

   341 endif

   343 # DEBUG_BINARIES uses full -g debug information for all configs

   344 ifeq ($(DEBUG_BINARIES), true)

   345   CFLAGS += -g

   346 else

   347   DEBUG_CFLAGS += $(DEBUG_CFLAGS/$(BUILDARCH))

   348   ifeq ($(DEBUG_CFLAGS/$(BUILDARCH)),)

   349     DEBUG_CFLAGS += -g

   350   endif

   352   ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)

   353     FASTDEBUG_CFLAGS += $(FASTDEBUG_CFLAGS/$(BUILDARCH))

   354     ifeq ($(FASTDEBUG_CFLAGS/$(BUILDARCH)),)

   355       FASTDEBUG_CFLAGS/$(BUILDARCH) = -g

   356     endif

   358     OPT_CFLAGS += $(OPT_CFLAGS/$(BUILDARCH))

   359     ifeq ($(OPT_CFLAGS/$(BUILDARCH)),)

   360       OPT_CFLAGS/$(BUILDARCH) = -g

   361     endif

   362   endif

   363 endif

   365 # If we are building HEADLESS, pass on to VM

   366 # so it can set the java.awt.headless property

   367 ifdef HEADLESS

   368 CFLAGS += -DHEADLESS

   369 endif

   371 # We are building Embedded for a small device

   372 # favor code space over speed

   373 ifdef MINIMIZE_RAM_USAGE

   374 CFLAGS += -DMINIMIZE_RAM_USAGE

   375 endif

   377 # Stack walking in the JVM relies on frame pointer (%rbp) to walk thread stack.

   378 # Explicitly specify -fno-omit-frame-pointer because it is off by default

   379 # starting with gcc 4.6.

   380 ifndef USE_SUNCC

   381   CFLAGS += -fno-omit-frame-pointer

   382 endif

   384 -include $(HS_ALT_MAKE)/linux/makefiles/gcc.make

Mercurial > jdk8-mips64-public > hotspot / file revision

make/linux/makefiles/gcc.make@fd44df5e3bc3

make/linux/makefiles/gcc.make