jdk8-mips64-public/hotspot: make/bsd/makefiles/gcc.make@67342b960b47

8008474: Add -Wundef to warning flags.
Summary: Force use of undefined macros to be and error.
Reviewed-by: dholmes, mikael

1 #

     2 # Copyright (c) 1999, 2012, 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 OS_VENDOR = $(shell uname -s)

    27 #------------------------------------------------------------------------

    28 # CC, CXX & AS

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

    31 ifeq ($(SPEC),)

    32   # When cross-compiling the ALT_COMPILER_PATH points

    33   # to the cross-compilation toolset

    34   ifdef CROSS_COMPILE_ARCH

    35     CXX = $(ALT_COMPILER_PATH)/g++

    36     CC  = $(ALT_COMPILER_PATH)/gcc

    37     HOSTCXX = g++

    38     HOSTCC  = gcc

    39   else ifneq ($(OS_VENDOR), Darwin)

    40     CXX = g++

    41     CC  = gcc

    42     HOSTCXX = $(CXX)

    43     HOSTCC  = $(CC)

    44   endif

    46   # i486 hotspot requires -mstackrealign on Darwin.

    47   # llvm-gcc supports this in Xcode 3.2.6 and 4.0.

    48   # gcc-4.0 supports this on earlier versions.

    49   # Prefer llvm-gcc where available.

    50   ifeq ($(OS_VENDOR), Darwin)

    51     ifeq ($(origin CXX), default)

    52       CXX = llvm-g++

    53     endif

    54     ifeq ($(origin CC), default)

    55       CC  = llvm-gcc

    56     endif

    58     ifeq ($(ARCH), i486)

    59       LLVM_SUPPORTS_STACKREALIGN := $(shell \

    60        [ "0"`llvm-gcc -v 2>&1 | grep LLVM | sed -E "s/.*LLVM build ([0-9]+).*/\1/"` -gt "2333" ] \

    61        && echo true || echo false)

    63       ifeq ($(LLVM_SUPPORTS_STACKREALIGN), true)

    64         CXX32 ?= llvm-g++

    65         CC32  ?= llvm-gcc

    66       else

    67         CXX32 ?= g++-4.0

    68         CC32  ?= gcc-4.0

    69       endif

    70       CXX = $(CXX32)

    71       CC  = $(CC32)

    72     endif

    74     HOSTCXX = $(CXX)

    75     HOSTCC  = $(CC)

    76   endif

    78   AS   = $(CC) -c -x assembler-with-cpp

    79 endif

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

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

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

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

    87 # check for precompiled headers support

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

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

    90 ifneq ($(USE_PRECOMPILED_HEADER),0)

    91 PRECOMPILED_HEADER_DIR=.

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

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

    94 endif

    95 endif

    98 #------------------------------------------------------------------------

    99 # Compiler flags

   101 # position-independent code

   102 PICFLAG = -fPIC

   104 VM_PICFLAG/LIBJVM = $(PICFLAG)

   105 VM_PICFLAG/AOUT   =

   106 VM_PICFLAG        = $(VM_PICFLAG/$(LINK_INTO))

   108 ifeq ($(JVM_VARIANT_ZERO), true)

   109   CFLAGS += $(LIBFFI_CFLAGS)

   110 endif

   111 ifeq ($(JVM_VARIANT_ZEROSHARK), true)

   112   CFLAGS += $(LIBFFI_CFLAGS)

   113   CFLAGS += $(LLVM_CFLAGS)

   114 endif

   115 CFLAGS += $(VM_PICFLAG)

   116 CFLAGS += -fno-rtti

   117 CFLAGS += -fno-exceptions

   118 CFLAGS += -pthread

   119 CFLAGS += -fcheck-new

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

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

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

   123 CFLAGS += -fvisibility=hidden

   124 endif

   126 ARCHFLAG = $(ARCHFLAG/$(BUILDARCH))

   127 ARCHFLAG/i486    = -m32 -march=i586

   128 ARCHFLAG/amd64   = -m64

   129 ARCHFLAG/ia64    =

   130 ARCHFLAG/sparc   = -m32 -mcpu=v9

   131 ARCHFLAG/sparcv9 = -m64 -mcpu=v9

   132 ARCHFLAG/zero    = $(ZERO_ARCHFLAG)

   134 # Darwin-specific build flags

   135 ifeq ($(OS_VENDOR), Darwin)

   136   # Ineffecient 16-byte stack re-alignment on Darwin/IA32

   137   ARCHFLAG/i486 += -mstackrealign

   138 endif

   140 CFLAGS     += $(ARCHFLAG)

   141 AOUT_FLAGS += $(ARCHFLAG)

   142 LFLAGS     += $(ARCHFLAG)

   143 ASFLAGS    += $(ARCHFLAG)

   145 ifdef E500V2

   146 CFLAGS += -DE500V2

   147 endif

   149 # Use C++ Interpreter

   150 ifdef CC_INTERP

   151   CFLAGS += -DCC_INTERP

   152 endif

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

   155 ifdef NEED_ASM

   156   CFLAGS += -save-temps

   157 else

   158   CFLAGS += -pipe

   159 endif

   161 # Compiler warnings are treated as errors

   162 ifneq ($(COMPILER_WARNINGS_FATAL),false)

   163   WARNINGS_ARE_ERRORS = -Werror

   164 endif

   166 # Except for a few acceptable ones

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

   168 # conversions which might affect the values. To avoid that, we need to turn

   169 # it off explicitly.

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

   171 WARNING_FLAGS = -Wpointer-arith -Wsign-compare -Wundef

   172 else

   173 WARNING_FLAGS = -Wpointer-arith -Wconversion -Wsign-compare -Wundef

   174 endif

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

   177 # Special cases

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

   179 # XXXDARWIN: for _dyld_bind_fully_image_containing_address

   180 ifeq ($(OS_VENDOR), Darwin)

   181   CFLAGS_WARN/os_bsd.o = $(CFLAGS_WARN/DEFAULT) -Wno-deprecated-declarations

   182 endif

   184 OPT_CFLAGS/SIZE=-Os

   185 OPT_CFLAGS/SPEED=-O3

   187 # Hotspot uses very unstrict aliasing turn this optimization off

   188 # This option is added to CFLAGS rather than OPT_CFLAGS

   189 # so that OPT_CFLAGS overrides get this option too.

   190 CFLAGS += -fno-strict-aliasing

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

   193 ifeq ($(OS_VENDOR), Darwin)

   194   # use -Os by default, unless -O3 can be proved to be worth the cost, as per policy

   195   # <http://wikis.sun.com/display/OpenJDK/Mac+OS+X+Port+Compilers>

   196   OPT_CFLAGS_DEFAULT ?= SIZE

   197 else

   198   OPT_CFLAGS_DEFAULT ?= SPEED

   199 endif

   201 ifdef OPT_CFLAGS

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

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

   204   endif

   205 endif

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

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

   210 # if we use expensive-optimizations

   211 ifeq ($(BUILDARCH), ia64)

   212 OPT_CFLAGS += -fno-expensive-optimizations

   213 endif

   215 OPT_CFLAGS/NOOPT=-O0

   217 # 6835796. Problem in GCC 4.3.0 with mulnode.o optimized compilation.

   218 ifneq "$(shell expr \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) = 3 \) \))" "0"

   219 OPT_CFLAGS/mulnode.o += -O0

   220 endif

   222 # Flags for generating make dependency flags.

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

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

   225 endif

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

   228 ifeq ($(USE_PRECOMPILED_HEADER),0)

   229 CFLAGS += -DDONT_USE_PRECOMPILED_HEADER

   230 endif

   232 #------------------------------------------------------------------------

   233 # Linker flags

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

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

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

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

   240 STATIC_LIBGCC += -static-libgcc

   241 endif

   243 ifeq ($(BUILDARCH), ia64)

   244 LFLAGS += -Wl,-relax

   245 endif

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

   248 MAPFLAG = -Xlinker --version-script=FILENAME

   250 #

   251 # Shared Library

   252 #

   253 ifeq ($(OS_VENDOR), Darwin)

   254   # Standard linker flags

   255   LFLAGS +=

   257   # Darwin doesn't use ELF and doesn't support version scripts

   258   LDNOMAP = true

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

   261   SONAMEFLAG =

   263   # Build shared library

   264   SHARED_FLAG = -Wl,-install_name,@rpath/$(@F) -dynamiclib -compatibility_version 1.0.0 -current_version 1.0.0 $(VM_PICFLAG)

   266   # Keep symbols even they are not used

   267   #AOUT_FLAGS += -Xlinker -export-dynamic

   268 else

   269   # Enable linker optimization

   270   LFLAGS += -Xlinker -O1

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

   273   SONAMEFLAG = -Xlinker -soname=SONAME

   275   # Build shared library

   276   SHARED_FLAG = -shared $(VM_PICFLAG)

   278   # Keep symbols even they are not used

   279   AOUT_FLAGS += -Xlinker -export-dynamic

   280 endif

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

   283 # Debug flags

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

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

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

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

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

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

   291 DEBUG_CFLAGS/ia64  = -g

   292 DEBUG_CFLAGS/amd64 = -g

   293 DEBUG_CFLAGS/arm   = -g

   294 DEBUG_CFLAGS/ppc   = -g

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

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

   297 DEBUG_CFLAGS += -gstabs

   298 endif

   300 # DEBUG_BINARIES overrides everything, use full -g debug information

   301 ifeq ($(DEBUG_BINARIES), true)

   302   DEBUG_CFLAGS = -g

   303   CFLAGS += $(DEBUG_CFLAGS)

   304 endif

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

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

   308 ifdef HEADLESS

   309 CFLAGS += -DHEADLESS

   310 endif

   312 # We are building Embedded for a small device

   313 # favor code space over speed

   314 ifdef MINIMIZE_RAM_USAGE

   315 CFLAGS += -DMINIMIZE_RAM_USAGE

   316 endif

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

make/bsd/makefiles/gcc.make@67342b960b47

make/bsd/makefiles/gcc.make