make/linux/makefiles/gcc.make

Tue, 01 Nov 2011 13:44:40 +0100

author
brutisso
date
Tue, 01 Nov 2011 13:44:40 +0100
changeset 3229
95009f678859
parent 3150
da0999c4b733
child 3325
f4414323345f
permissions
-rw-r--r--

7106766: Move the precompiled header from the src/share/vm directory
Summary: Moved precompiled.hpp to src/share/vm/precompiled
Reviewed-by: coleenp, dholmes
Contributed-by: rbackman <rickard.backman@oracle.com>

     1 #
     2 # Copyright (c) 1999, 2011, 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 # CC, CPP & AS
    28 # When cross-compiling the ALT_COMPILER_PATH points
    29 # to the cross-compilation toolset
    30 ifdef CROSS_COMPILE_ARCH
    31 CPP = $(ALT_COMPILER_PATH)/g++
    32 CC  = $(ALT_COMPILER_PATH)/gcc
    33 HOSTCPP = g++
    34 HOSTCC  = gcc
    35 else
    36 CPP = g++
    37 CC  = gcc
    38 HOSTCPP = $(CPP)
    39 HOSTCC  = $(CC)
    40 endif
    42 AS  = $(CC) -c
    44 # -dumpversion in gcc-2.91 shows "egcs-2.91.66". In later version, it only
    45 # prints the numbers (e.g. "2.95", "3.2.1")
    46 CC_VER_MAJOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f1)
    47 CC_VER_MINOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f2)
    49 # check for precompiled headers support
    50 ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 3 \) \| \( \( $(CC_VER_MAJOR) = 3 \) \& \( $(CC_VER_MINOR) \>= 4 \) \))" "0"
    51 # Allow the user to turn off precompiled headers from the command line.
    52 ifneq ($(USE_PRECOMPILED_HEADER),0)
    53 USE_PRECOMPILED_HEADER=1
    54 PRECOMPILED_HEADER_DIR=.
    55 PRECOMPILED_HEADER_SRC=$(GAMMADIR)/src/share/vm/precompiled/precompiled.hpp
    56 PRECOMPILED_HEADER=$(PRECOMPILED_HEADER_DIR)/precompiled.hpp.gch
    57 endif
    58 endif
    61 #------------------------------------------------------------------------
    62 # Compiler flags
    64 # position-independent code
    65 PICFLAG = -fPIC
    67 VM_PICFLAG/LIBJVM = $(PICFLAG)
    68 VM_PICFLAG/AOUT   =
    69 VM_PICFLAG        = $(VM_PICFLAG/$(LINK_INTO))
    71 ifeq ($(ZERO_BUILD), true)
    72 CFLAGS += $(LIBFFI_CFLAGS)
    73 endif
    74 ifeq ($(SHARK_BUILD), true)
    75 CFLAGS += $(LLVM_CFLAGS)
    76 endif
    77 CFLAGS += $(VM_PICFLAG)
    78 CFLAGS += -fno-rtti
    79 CFLAGS += -fno-exceptions
    80 CFLAGS += -D_REENTRANT
    81 CFLAGS += -fcheck-new
    82 # version 4 and above support fvisibility=hidden (matches jni_x86.h file)
    83 # except 4.1.2 gives pointless warnings that can't be disabled (afaik)
    84 ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0"
    85 CFLAGS += -fvisibility=hidden
    86 endif
    88 ARCHFLAG = $(ARCHFLAG/$(BUILDARCH))
    89 ARCHFLAG/i486    = -m32 -march=i586
    90 ARCHFLAG/amd64   = -m64
    91 ARCHFLAG/ia64    =
    92 ARCHFLAG/sparc   = -m32 -mcpu=v9
    93 ARCHFLAG/sparcv9 = -m64 -mcpu=v9
    94 ARCHFLAG/arm     =  -fsigned-char
    95 ARCHFLAG/zero    = $(ZERO_ARCHFLAG)
    96 ifndef E500V2
    97 ARCHFLAG/ppc     =  -mcpu=powerpc
    98 endif
   100 CFLAGS     += $(ARCHFLAG)
   101 AOUT_FLAGS += $(ARCHFLAG)
   102 LFLAGS     += $(ARCHFLAG)
   103 ASFLAGS    += $(ARCHFLAG)
   105 ifdef E500V2
   106 CFLAGS += -DE500V2
   107 endif
   109 # Use C++ Interpreter
   110 ifdef CC_INTERP
   111   CFLAGS += -DCC_INTERP
   112 endif
   114 # Build for embedded targets
   115 ifdef JAVASE_EMBEDDED
   116   CFLAGS += -DJAVASE_EMBEDDED
   117 endif
   119 # Keep temporary files (.ii, .s)
   120 ifdef NEED_ASM
   121   CFLAGS += -save-temps
   122 else
   123   CFLAGS += -pipe
   124 endif
   126 # Compiler warnings are treated as errors
   127 WARNINGS_ARE_ERRORS = -Werror
   129 # Except for a few acceptable ones
   130 # Since GCC 4.3, -Wconversion has changed its meanings to warn these implicit
   131 # conversions which might affect the values. To avoid that, we need to turn
   132 # it off explicitly. 
   133 ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0"
   134 ACCEPTABLE_WARNINGS = -Wpointer-arith -Wsign-compare
   135 else
   136 ACCEPTABLE_WARNINGS = -Wpointer-arith -Wconversion -Wsign-compare
   137 endif
   139 CFLAGS_WARN/DEFAULT = $(WARNINGS_ARE_ERRORS) $(ACCEPTABLE_WARNINGS)
   140 # Special cases
   141 CFLAGS_WARN/BYFILE = $(CFLAGS_WARN/$@)$(CFLAGS_WARN/DEFAULT$(CFLAGS_WARN/$@)) 
   143 # The flags to use for an Optimized g++ build
   144 OPT_CFLAGS += -O3
   146 # Hotspot uses very unstrict aliasing turn this optimization off
   147 OPT_CFLAGS += -fno-strict-aliasing
   149 # The gcc compiler segv's on ia64 when compiling bytecodeInterpreter.cpp 
   150 # if we use expensive-optimizations
   151 ifeq ($(BUILDARCH), ia64)
   152 OPT_CFLAGS += -fno-expensive-optimizations
   153 endif
   155 OPT_CFLAGS/NOOPT=-O0
   157 # 6835796. Problem in GCC 4.3.0 with mulnode.o optimized compilation. 
   158 ifneq "$(shell expr \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) = 3 \) \))" "0"
   159 OPT_CFLAGS/mulnode.o += -O0
   160 endif
   162 # Flags for generating make dependency flags.
   163 ifneq ("${CC_VER_MAJOR}", "2")
   164 DEPFLAGS = -MMD -MP -MF $(DEP_DIR)/$(@:%=%.d)
   165 endif
   167 # -DDONT_USE_PRECOMPILED_HEADER will exclude all includes in precompiled.hpp.
   168 ifneq ($(USE_PRECOMPILED_HEADER),1)
   169 CFLAGS += -DDONT_USE_PRECOMPILED_HEADER
   170 endif
   172 #------------------------------------------------------------------------
   173 # Linker flags
   175 # statically link libstdc++.so, work with gcc but ignored by g++
   176 STATIC_STDCXX = -Wl,-Bstatic -lstdc++ -Wl,-Bdynamic
   178 # statically link libgcc and/or libgcc_s, libgcc does not exist before gcc-3.x.
   179 ifneq ("${CC_VER_MAJOR}", "2")
   180 STATIC_LIBGCC += -static-libgcc
   181 endif
   183 ifeq ($(BUILDARCH), ia64)
   184 LFLAGS += -Wl,-relax
   185 endif
   187 # Enable linker optimization
   188 LFLAGS += -Xlinker -O1
   190 # If this is a --hash-style=gnu system, use --hash-style=both
   191 #   The gnu .hash section won't work on some Linux systems like SuSE 10.
   192 _HAS_HASH_STYLE_GNU:=$(shell $(CC) -dumpspecs | grep -- '--hash-style=gnu')
   193 ifneq ($(_HAS_HASH_STYLE_GNU),)
   194   LDFLAGS_HASH_STYLE = -Wl,--hash-style=both
   195 endif
   196 LFLAGS += $(LDFLAGS_HASH_STYLE)
   198 # Use $(MAPFLAG:FILENAME=real_file_name) to specify a map file.
   199 MAPFLAG = -Xlinker --version-script=FILENAME
   201 # Use $(SONAMEFLAG:SONAME=soname) to specify the intrinsic name of a shared obj
   202 SONAMEFLAG = -Xlinker -soname=SONAME
   204 # Build shared library
   205 SHARED_FLAG = -shared
   207 # Keep symbols even they are not used
   208 AOUT_FLAGS += -Xlinker -export-dynamic
   210 #------------------------------------------------------------------------
   211 # Debug flags
   213 # Use the stabs format for debugging information (this is the default
   214 # on gcc-2.91). It's good enough, has all the information about line
   215 # numbers and local variables, and libjvm_g.so is only about 16M.
   216 # Change this back to "-g" if you want the most expressive format.
   217 # (warning: that could easily inflate libjvm_g.so to 150M!)
   218 # Note: The Itanium gcc compiler crashes when using -gstabs.
   219 DEBUG_CFLAGS/ia64  = -g
   220 DEBUG_CFLAGS/amd64 = -g
   221 DEBUG_CFLAGS/arm   = -g
   222 DEBUG_CFLAGS/ppc   = -g
   223 DEBUG_CFLAGS += $(DEBUG_CFLAGS/$(BUILDARCH))
   224 ifeq ($(DEBUG_CFLAGS/$(BUILDARCH)),)
   225 DEBUG_CFLAGS += -gstabs
   226 endif
   228 ifneq ($(OBJCOPY),)
   229   FASTDEBUG_CFLAGS/ia64  = -g
   230   FASTDEBUG_CFLAGS/amd64 = -g
   231   FASTDEBUG_CFLAGS/arm   = -g
   232   FASTDEBUG_CFLAGS/ppc   = -g
   233   FASTDEBUG_CFLAGS += $(DEBUG_CFLAGS/$(BUILDARCH))
   234   ifeq ($(FASTDEBUG_CFLAGS/$(BUILDARCH)),)
   235     FASTDEBUG_CFLAGS += -gstabs
   236   endif
   238   OPT_CFLAGS/ia64  = -g
   239   OPT_CFLAGS/amd64 = -g
   240   OPT_CFLAGS/arm   = -g
   241   OPT_CFLAGS/ppc   = -g
   242   OPT_CFLAGS += $(OPT_CFLAGS/$(BUILDARCH))
   243   ifeq ($(OPT_CFLAGS/$(BUILDARCH)),)
   244     OPT_CFLAGS += -gstabs
   245   endif
   246 endif
   248 # DEBUG_BINARIES overrides everything, use full -g debug information
   249 ifeq ($(DEBUG_BINARIES), true)
   250   DEBUG_CFLAGS = -g
   251   CFLAGS += $(DEBUG_CFLAGS)
   252 endif
   254 # If we are building HEADLESS, pass on to VM
   255 # so it can set the java.awt.headless property
   256 ifdef HEADLESS
   257 CFLAGS += -DHEADLESS
   258 endif
   260 # We are building Embedded for a small device
   261 # favor code space over speed
   262 ifdef MINIMIZE_RAM_USAGE
   263 CFLAGS += -DMINIMIZE_RAM_USAGE
   264 endif
   266 ifdef CROSS_COMPILE_ARCH
   267   STRIP = $(ALT_COMPILER_PATH)/strip
   268 else
   269   STRIP = strip
   270 endif

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