jdk8-mips64-public/hotspot: make/linux/makefiles/gcc.make@2cb5d5f6d5e5 (annotated)

make/linux/makefiles/gcc.make@2cb5d5f6d5e5 (annotated)

make/linux/makefiles/gcc.make

Tue, 04 Jun 2013 22:16:15 -0700

author: simonis
date: Tue, 04 Jun 2013 22:16:15 -0700
changeset 5230: 2cb5d5f6d5e5
parent 4889: cc32ccaaf47f
child 5259: ef57c43512d6
permissions: -rw-r--r--

8015252: Enable HotSpot build with Clang
Reviewed-by: twisti, dholmes, kvn

 #
 # Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License version 2 only, as
 # published by the Free Software Foundation.
 #
 # This code is distributed in the hope that it will be useful, but WITHOUT
 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 # version 2 for more details (a copy is included in the LICENSE file that
 # accompanied this code).
 #
 # You should have received a copy of the GNU General Public License version
 # 2 along with this work; if not, write to the Free Software Foundation,
 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 #
 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 # or visit www.oracle.com if you need additional information or have any
 # questions.
 #
 #
 #------------------------------------------------------------------------
 # CC, CXX & AS
 # If a SPEC is not set already, then use these defaults.
 ifeq ($(SPEC),)
   # When cross-compiling the ALT_COMPILER_PATH points
   # to the cross-compilation toolset
   ifdef CROSS_COMPILE_ARCH
     CXX = $(ALT_COMPILER_PATH)/g++
     CC  = $(ALT_COMPILER_PATH)/gcc
     HOSTCXX = g++
     HOSTCC  = gcc
     STRIP = $(ALT_COMPILER_PATH)/strip
   else
     ifeq ($(USE_CLANG), true)
       CXX = clang++
       CC  = clang
     else
       CXX = g++
       CC  = gcc
     endif
     HOSTCXX = $(CXX)
     HOSTCC  = $(CC)
     STRIP = strip
   endif
   AS  = $(CC) -c
 endif
 ifeq ($(USE_CLANG), true)
   CC_VER_MAJOR := $(shell $(CC) -v 2>&1 | grep version | sed "s/.*version \([0-9]*\.[0-9]*\).*/\1/" | cut -d'.' -f1)
   CC_VER_MINOR := $(shell $(CC) -v 2>&1 | grep version | sed "s/.*version \([0-9]*\.[0-9]*\).*/\1/" | cut -d'.' -f2)
 else
   # -dumpversion in gcc-2.91 shows "egcs-2.91.66". In later version, it only
   # prints the numbers (e.g. "2.95", "3.2.1")
   CC_VER_MAJOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f1)
   CC_VER_MINOR := $(shell $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f2)
 endif
 ifeq ($(USE_CLANG), true)
   # Clang has precompiled headers support by default, but the user can switch
   # it off by using 'USE_PRECOMPILED_HEADER=0'.
   ifdef LP64
     ifeq ($(USE_PRECOMPILED_HEADER),)
       USE_PRECOMPILED_HEADER=1
     endif
   else
     # We don't support precompiled headers on 32-bit builds because there some files are
     # compiled with -fPIC while others are compiled without (see 'NONPIC_OBJ_FILES' rules.make)
     # Clang produces an error if the PCH file was compiled with other options than the actual compilation unit.
     USE_PRECOMPILED_HEADER=0
   endif
   ifeq ($(USE_PRECOMPILED_HEADER),1)
     ifndef LP64
       $(error " Precompiled Headers only supported on 64-bit platforms!")
     endif
     PRECOMPILED_HEADER_DIR=.
     PRECOMPILED_HEADER_SRC=$(GAMMADIR)/src/share/vm/precompiled/precompiled.hpp
     PRECOMPILED_HEADER=$(PRECOMPILED_HEADER_DIR)/precompiled.hpp.pch
     PCH_FLAG = -include precompiled.hpp
     PCH_FLAG/DEFAULT = $(PCH_FLAG)
     PCH_FLAG/NO_PCH = -DNO_PCH
     PCH_FLAG/BY_FILE = $(PCH_FLAG/$@)$(PCH_FLAG/DEFAULT$(PCH_FLAG/$@))
     VM_PCH_FLAG/LIBJVM = $(PCH_FLAG/BY_FILE)
     VM_PCH_FLAG/AOUT =
     VM_PCH_FLAG = $(VM_PCH_FLAG/$(LINK_INTO))
     # We only use precompiled headers for the JVM build
     CFLAGS += $(VM_PCH_FLAG)
     # There are some files which don't like precompiled headers
     # The following files are build with 'OPT_CFLAGS/NOOPT' (-O0) in the opt build.
     # But Clang doesn't support a precompiled header which was compiled with -O3
     # to be used in a compilation unit which uses '-O0'. We could also prepare an
     # extra '-O0' PCH file for the opt build and use it here, but it's probably
     # not worth the effoert as long as only two files need this special handling.
     PCH_FLAG/loopTransform.o = $(PCH_FLAG/NO_PCH)
     PCH_FLAG/sharedRuntimeTrig.o = $(PCH_FLAG/NO_PCH)
     PCH_FLAG/sharedRuntimeTrans.o = $(PCH_FLAG/NO_PCH)
   endif
 else # ($(USE_CLANG), true)
   # check for precompiled headers support
   ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 3 \) \| \( \( $(CC_VER_MAJOR) = 3 \) \& \( $(CC_VER_MINOR) \>= 4 \) \))" "0"
     # Allow the user to turn off precompiled headers from the command line.
     ifneq ($(USE_PRECOMPILED_HEADER),0)
       PRECOMPILED_HEADER_DIR=.
       PRECOMPILED_HEADER_SRC=$(GAMMADIR)/src/share/vm/precompiled/precompiled.hpp
       PRECOMPILED_HEADER=$(PRECOMPILED_HEADER_DIR)/precompiled.hpp.gch
     endif
   endif
 endif
 # -DDONT_USE_PRECOMPILED_HEADER will exclude all includes in precompiled.hpp.
 ifeq ($(USE_PRECOMPILED_HEADER),0)
   CFLAGS += -DDONT_USE_PRECOMPILED_HEADER
 endif
 #------------------------------------------------------------------------
 # Compiler flags
 # position-independent code
 PICFLAG = -fPIC
 VM_PICFLAG/LIBJVM = $(PICFLAG)
 VM_PICFLAG/AOUT   =
 VM_PICFLAG        = $(VM_PICFLAG/$(LINK_INTO))
 ifeq ($(JVM_VARIANT_ZERO), true)
 CFLAGS += $(LIBFFI_CFLAGS)
 endif
 ifeq ($(JVM_VARIANT_ZEROSHARK), true)
 CFLAGS += $(LIBFFI_CFLAGS)
 CFLAGS += $(LLVM_CFLAGS)
 endif
 CFLAGS += $(VM_PICFLAG)
 CFLAGS += -fno-rtti
 CFLAGS += -fno-exceptions
 CFLAGS += -D_REENTRANT
 ifeq ($(USE_CLANG),)
   CFLAGS += -fcheck-new
   # version 4 and above support fvisibility=hidden (matches jni_x86.h file)
   # except 4.1.2 gives pointless warnings that can't be disabled (afaik)
   ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0"
     CFLAGS += -fvisibility=hidden
   endif
 else
   CFLAGS += -fvisibility=hidden
 endif
 ifeq ($(USE_CLANG), true)
   # Before Clang 3.1, we had to pass the stack alignment specification directly to llvm with the help of '-mllvm'
   # Starting with version 3.1, Clang understands the '-mstack-alignment' (and rejects '-mllvm -stack-alignment')
   ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 3 \) \| \( \( $(CC_VER_MAJOR) = 3 \) \& \( $(CC_VER_MINOR) \>= 1 \) \))" "0"
     STACK_ALIGNMENT_OPT = -mno-omit-leaf-frame-pointer -mstack-alignment=16
   else
     STACK_ALIGNMENT_OPT = -mno-omit-leaf-frame-pointer -mllvm -stack-alignment=16
   endif
 endif
 ARCHFLAG = $(ARCHFLAG/$(BUILDARCH))
 ARCHFLAG/i486    = -m32 -march=i586
 ARCHFLAG/amd64   = -m64 $(STACK_ALIGNMENT_OPT)
 ARCHFLAG/ia64    =
 ARCHFLAG/sparc   = -m32 -mcpu=v9
 ARCHFLAG/sparcv9 = -m64 -mcpu=v9
 ARCHFLAG/arm     =  -fsigned-char
 ARCHFLAG/zero    = $(ZERO_ARCHFLAG)
 ifndef E500V2
 ARCHFLAG/ppc     =  -mcpu=powerpc
 endif
 CFLAGS     += $(ARCHFLAG)
 AOUT_FLAGS += $(ARCHFLAG)
 LFLAGS     += $(ARCHFLAG)
 ASFLAGS    += $(ARCHFLAG)
 ifdef E500V2
 CFLAGS += -DE500V2
 endif
 # Use C++ Interpreter
 ifdef CC_INTERP
   CFLAGS += -DCC_INTERP
 endif
 # Keep temporary files (.ii, .s)
 ifdef NEED_ASM
   CFLAGS += -save-temps
 else
   CFLAGS += -pipe
 endif
 # Compiler warnings are treated as errors
 WARNINGS_ARE_ERRORS = -Werror
 ifeq ($(USE_CLANG), true)
   # However we need to clean the code up before we can unrestrictedly enable this option with Clang
   WARNINGS_ARE_ERRORS += -Wno-unused-value -Wno-logical-op-parentheses -Wno-parentheses-equality -Wno-parentheses
   WARNINGS_ARE_ERRORS += -Wno-switch -Wno-tautological-constant-out-of-range-compare -Wno-tautological-compare
   WARNINGS_ARE_ERRORS += -Wno-delete-non-virtual-dtor -Wno-deprecated -Wno-format -Wno-dynamic-class-memaccess
   WARNINGS_ARE_ERRORS += -Wno-return-type -Wno-empty-body
 endif
 WARNING_FLAGS = -Wpointer-arith -Wsign-compare -Wundef -Wunused-function
 ifeq ($(USE_CLANG),)
   # Since GCC 4.3, -Wconversion has changed its meanings to warn these implicit
   # conversions which might affect the values. Only enable it in earlier versions.
   ifeq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0"
     WARNING_FLAGS += -Wconversion
   endif
 endif
 CFLAGS_WARN/DEFAULT = $(WARNINGS_ARE_ERRORS) $(WARNING_FLAGS)
 # Special cases
 CFLAGS_WARN/BYFILE = $(CFLAGS_WARN/$@)$(CFLAGS_WARN/DEFAULT$(CFLAGS_WARN/$@))
 # The flags to use for an Optimized g++ build
 OPT_CFLAGS/SIZE=-Os
 OPT_CFLAGS/SPEED=-O3
 # Hotspot uses very unstrict aliasing turn this optimization off
 # This option is added to CFLAGS rather than OPT_CFLAGS
 # so that OPT_CFLAGS overrides get this option too.
 CFLAGS += -fno-strict-aliasing
 OPT_CFLAGS_DEFAULT ?= SPEED
 ifdef OPT_CFLAGS
   ifneq ("$(origin OPT_CFLAGS)", "command line")
     $(error " Use OPT_EXTRAS instead of OPT_CFLAGS to add extra flags to OPT_CFLAGS.")
   endif
 endif
 OPT_CFLAGS = $(OPT_CFLAGS/$(OPT_CFLAGS_DEFAULT)) $(OPT_EXTRAS)
 # The gcc compiler segv's on ia64 when compiling bytecodeInterpreter.cpp
 # if we use expensive-optimizations
 ifeq ($(BUILDARCH), ia64)
 OPT_CFLAGS += -fno-expensive-optimizations
 endif
 OPT_CFLAGS/NOOPT=-O0
 # Work around some compiler bugs.
 ifeq ($(USE_CLANG), true)
   ifeq ($(shell expr $(CC_VER_MAJOR) = 4 \& $(CC_VER_MINOR) = 2), 1)
     OPT_CFLAGS/loopTransform.o += $(OPT_CFLAGS/NOOPT)
   endif
 else
   # 6835796. Problem in GCC 4.3.0 with mulnode.o optimized compilation.
   ifeq ($(shell expr $(CC_VER_MAJOR) = 4 \& $(CC_VER_MINOR) = 3), 1)
     OPT_CFLAGS/mulnode.o += $(OPT_CFLAGS/NOOPT)
   endif
 endif
 # Flags for generating make dependency flags.
 DEPFLAGS = -MMD -MP -MF $(DEP_DIR)/$(@:%=%.d)
 ifeq ($(USE_CLANG),)
   ifneq ("${CC_VER_MAJOR}", "2")
     DEPFLAGS += -fpch-deps
   endif
 endif
 #------------------------------------------------------------------------
 # Linker flags
 # statically link libstdc++.so, work with gcc but ignored by g++
 STATIC_STDCXX = -Wl,-Bstatic -lstdc++ -Wl,-Bdynamic
 ifeq ($(USE_CLANG),)
   # statically link libgcc and/or libgcc_s, libgcc does not exist before gcc-3.x.
   ifneq ("${CC_VER_MAJOR}", "2")
     STATIC_LIBGCC += -static-libgcc
   endif
   ifeq ($(BUILDARCH), ia64)
     LFLAGS += -Wl,-relax
   endif
 endif
 # Enable linker optimization
 LFLAGS += -Xlinker -O1
 ifeq ($(USE_CLANG),)
   # If this is a --hash-style=gnu system, use --hash-style=both
   #   The gnu .hash section won't work on some Linux systems like SuSE 10.
   _HAS_HASH_STYLE_GNU:=$(shell $(CC) -dumpspecs | grep -- '--hash-style=gnu')
   ifneq ($(_HAS_HASH_STYLE_GNU),)
     LDFLAGS_HASH_STYLE = -Wl,--hash-style=both
   endif
 else
   # Don't know how to find out the 'hash style' of a system as '-dumpspecs'
   # doesn't work for Clang. So for now we'll alwys use --hash-style=both
   LDFLAGS_HASH_STYLE = -Wl,--hash-style=both
 endif
 LFLAGS += $(LDFLAGS_HASH_STYLE)
 # Use $(MAPFLAG:FILENAME=real_file_name) to specify a map file.
 MAPFLAG = -Xlinker --version-script=FILENAME
 # Use $(SONAMEFLAG:SONAME=soname) to specify the intrinsic name of a shared obj
 SONAMEFLAG = -Xlinker -soname=SONAME
 # Build shared library
 SHARED_FLAG = -shared
 # Keep symbols even they are not used
 AOUT_FLAGS += -Xlinker -export-dynamic
 #------------------------------------------------------------------------
 # Debug flags
 ifeq ($(USE_CLANG), true)
   # Restrict the debug information created by Clang to avoid
   # too big object files and speed the build up a little bit
   # (see http://llvm.org/bugs/show_bug.cgi?id=7554)
   CFLAGS += -flimit-debug-info
 endif
 # DEBUG_BINARIES uses full -g debug information for all configs
 ifeq ($(DEBUG_BINARIES), true)
   CFLAGS += -g
 else
   # Use the stabs format for debugging information (this is the default
   # on gcc-2.91). It's good enough, has all the information about line
   # numbers and local variables, and libjvm.so is only about 16M.
   # Change this back to "-g" if you want the most expressive format.
   # (warning: that could easily inflate libjvm.so to 150M!)
   # Note: The Itanium gcc compiler crashes when using -gstabs.
   DEBUG_CFLAGS/ia64  = -g
   DEBUG_CFLAGS/amd64 = -g
   DEBUG_CFLAGS/arm   = -g
   DEBUG_CFLAGS/ppc   = -g
   DEBUG_CFLAGS += $(DEBUG_CFLAGS/$(BUILDARCH))
   ifeq ($(DEBUG_CFLAGS/$(BUILDARCH)),)
       ifeq ($(USE_CLANG), true)
         # Clang doesn't understand -gstabs
         OPT_CFLAGS += -g
       else
         OPT_CFLAGS += -gstabs
       endif
   endif
   ifeq ($(ENABLE_FULL_DEBUG_SYMBOLS),1)
     FASTDEBUG_CFLAGS/ia64  = -g
     FASTDEBUG_CFLAGS/amd64 = -g
     FASTDEBUG_CFLAGS/arm   = -g
     FASTDEBUG_CFLAGS/ppc   = -g
     FASTDEBUG_CFLAGS += $(DEBUG_CFLAGS/$(BUILDARCH))
     ifeq ($(FASTDEBUG_CFLAGS/$(BUILDARCH)),)
       ifeq ($(USE_CLANG), true)
         # Clang doesn't understand -gstabs
         OPT_CFLAGS += -g
       else
         OPT_CFLAGS += -gstabs
       endif
     endif
     OPT_CFLAGS/ia64  = -g
     OPT_CFLAGS/amd64 = -g
     OPT_CFLAGS/arm   = -g
     OPT_CFLAGS/ppc   = -g
     OPT_CFLAGS += $(OPT_CFLAGS/$(BUILDARCH))
     ifeq ($(OPT_CFLAGS/$(BUILDARCH)),)
       ifeq ($(USE_CLANG), true)
         # Clang doesn't understand -gstabs
         OPT_CFLAGS += -g
       else
         OPT_CFLAGS += -gstabs
       endif
     endif
   endif
 endif
 # If we are building HEADLESS, pass on to VM
 # so it can set the java.awt.headless property
 ifdef HEADLESS
 CFLAGS += -DHEADLESS
 endif
 # We are building Embedded for a small device
 # favor code space over speed
 ifdef MINIMIZE_RAM_USAGE
 CFLAGS += -DMINIMIZE_RAM_USAGE
 endif

Mercurial > jdk8-mips64-public > hotspot / annotate

make/linux/makefiles/gcc.make@2cb5d5f6d5e5 (annotated)

make/linux/makefiles/gcc.make