jdk8-mips64-public/hotspot: make/linux/makefiles/gcc.make@2d8a650513c2

1 #

     2 # Copyright (c) 1999, 2013, 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/arm     =  -fsigned-char

   186 ARCHFLAG/zero    = $(ZERO_ARCHFLAG)

   187 ifndef E500V2

   188 ARCHFLAG/ppc     =  -mcpu=powerpc

   189 ARCHFLAG/mips64  = -mabi=64 -march=mips3

   190 endif

   191 ARCHFLAG/ppc64   =  -m64

   193 CFLAGS     += $(ARCHFLAG)

   194 AOUT_FLAGS += $(ARCHFLAG)

   195 LFLAGS     += $(ARCHFLAG)

   196 ASFLAGS    += $(ARCHFLAG)

   198 ifdef E500V2

   199 CFLAGS += -DE500V2

   200 endif

   202 # Use C++ Interpreter

   203 ifdef CC_INTERP

   204   CFLAGS += -DCC_INTERP

   205 endif

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

   208 ifdef NEED_ASM

   209   CFLAGS += -save-temps

   210 else

   211   CFLAGS += -pipe

   212 endif

   214 # Compiler warnings are treated as errors

   215 #compiler disassembler_mips.cpp:193:"if WARNINGS_ARE_ERRORS =, here from error to  warning ": deprecated conversion from string constant to 'char*'

   216 #WARNINGS_ARE_ERRORS = -Werror

   218 ifeq ($(USE_CLANG), true)

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

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

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

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

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

   224 endif

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

   228 ifeq ($(USE_CLANG),)

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

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

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

   232     WARNING_FLAGS += -Wconversion

   233   endif

   234 endif

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

   237 # Special cases

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

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

   241 OPT_CFLAGS/SIZE=-Os

   242 OPT_CFLAGS/SPEED=-O3

   244 # Hotspot uses very unstrict aliasing turn this optimization off

   245 # This option is added to CFLAGS rather than OPT_CFLAGS

   246 # so that OPT_CFLAGS overrides get this option too.

   247 CFLAGS += -fno-strict-aliasing

   249 OPT_CFLAGS_DEFAULT ?= SPEED

   251 ifdef OPT_CFLAGS

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

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

   254   endif

   255 endif

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

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

   260 # if we use expensive-optimizations

   261 ifeq ($(BUILDARCH), ia64)

   262 OPT_CFLAGS += -fno-expensive-optimizations

   263 endif

   265 OPT_CFLAGS/NOOPT=-O0

   267 # Work around some compiler bugs.

   268 ifeq ($(USE_CLANG), true)

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

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

   271   endif

   272 else

   273   # 6835796. Problem in GCC 4.3.0 with mulnode.o optimized compilation.

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

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

   276   endif

   277 endif

   279 # Flags for generating make dependency flags.

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

   281 ifeq ($(USE_CLANG),)

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

   283     DEPFLAGS += -fpch-deps

   284   endif

   285 endif

   287 #------------------------------------------------------------------------

   288 # Linker flags

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

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

   293 ifeq ($(USE_CLANG),)

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

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

   296     STATIC_LIBGCC += -static-libgcc

   297   endif

   299   ifeq ($(BUILDARCH), ia64)

   300     LFLAGS += -Wl,-relax

   301   endif

   302 endif

   304 # Enable linker optimization

   305 LFLAGS += -Xlinker -O1

   307 ifeq ($(USE_CLANG),)

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

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

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

   311   ifneq ($(_HAS_HASH_STYLE_GNU),)

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

   313   endif

   314 else

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

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

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

   318 endif

   320 LFLAGS += $(LDFLAGS_HASH_STYLE)

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

   323 MAPFLAG = -Xlinker --version-script=FILENAME

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

   326 SONAMEFLAG = -Xlinker -soname=SONAME

   328 # Build shared library

   329 SHARED_FLAG = -shared

   331 # Keep symbols even they are not used

   332 AOUT_FLAGS += -Xlinker -export-dynamic

   334 #------------------------------------------------------------------------

   335 # Debug flags

   337 ifeq ($(USE_CLANG), true)

   338   # Restrict the debug information created by Clang to avoid

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

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

   341   CFLAGS += -flimit-debug-info

   342 endif

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

   345 ifeq ($(DEBUG_BINARIES), true)

   346   CFLAGS += -g

   347 else

   348   # Use the stabs format for debugging information (this is the default

   349   # on gcc-2.91). It's good enough, has all the information about line

   350   # numbers and local variables, and libjvm.so is only about 16M.

   351   # Change this back to "-g" if you want the most expressive format.

   352   # (warning: that could easily inflate libjvm.so to 150M!)

   353   # Note: The Itanium gcc compiler crashes when using -gstabs.

   354   DEBUG_CFLAGS/ia64  = -g

   355   DEBUG_CFLAGS/amd64 = -g

   356   DEBUG_CFLAGS/mips64 = -g

   357   DEBUG_CFLAGS/arm   = -g

   358   DEBUG_CFLAGS/ppc   = -g

   359   DEBUG_CFLAGS/ppc64 = -g

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

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

   362       ifeq ($(USE_CLANG), true)

   363         # Clang doesn't understand -gstabs

   364         DEBUG_CFLAGS += -g

   365       else

   366         DEBUG_CFLAGS += -gstabs

   367       endif

   368   endif

   370   ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)

   371     FASTDEBUG_CFLAGS/ia64  = -g

   372     FASTDEBUG_CFLAGS/amd64 = -g

   373     FASTDEBUG_CFLAGS/mips64 = -g

   374     FASTDEBUG_CFLAGS/arm   = -g

   375     FASTDEBUG_CFLAGS/ppc   = -g

   376     FASTDEBUG_CFLAGS/ppc64 = -g

   377     FASTDEBUG_CFLAGS += $(DEBUG_CFLAGS/$(BUILDARCH))

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

   379       ifeq ($(USE_CLANG), true)

   380         # Clang doesn't understand -gstabs

   381         FASTDEBUG_CFLAGS += -g

   382       else

   383         FASTDEBUG_CFLAGS += -gstabs

   384       endif

   385     endif

   387     OPT_CFLAGS/ia64  = -g

   388     OPT_CFLAGS/amd64 = -g

   389     OPT_CFLAGS/mips64 = -g

   390     OPT_CFLAGS/arm   = -g

   391     OPT_CFLAGS/ppc   = -g

   392     OPT_CFLAGS/ppc64 = -g

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

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

   395       ifeq ($(USE_CLANG), true)

   396         # Clang doesn't understand -gstabs

   397         OPT_CFLAGS += -g

   398       else

   399         OPT_CFLAGS += -gstabs

   400       endif

   401     endif

   402   endif

   403 endif

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

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

   407 ifdef HEADLESS

   408 CFLAGS += -DHEADLESS

   409 endif

   411 # We are building Embedded for a small device

   412 # favor code space over speed

   413 ifdef MINIMIZE_RAM_USAGE

   414 CFLAGS += -DMINIMIZE_RAM_USAGE

   415 endif

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

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

   419 # starting with gcc 4.6.

   420 ifndef USE_SUNCC

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

   422 endif

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

make/linux/makefiles/gcc.make@2d8a650513c2

make/linux/makefiles/gcc.make