make/bsd/makefiles/gcc.make
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*** old/make/bsd/makefiles/gcc.make Tue Jun 4 10:02:31 2013
--- new/make/bsd/makefiles/gcc.make Tue Jun 4 10:02:31 2013
*** 69,101 ****
--- 69,164 ----
endif
CXX = $(CXX32)
CC = $(CC32)
endif
+ ifeq ($(USE_CLANG), true)
+ CXX = clang++
+ CC = clang
+ endif
+
HOSTCXX = $(CXX)
HOSTCC = $(CC)
endif
AS = $(CC) -c -x assembler-with-cpp
endif
# -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 $(CC) -dumpversion | sed 's/egcs-//' | cut -d'.' -f2)
# check for precompiled headers support
ifneq "$(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=$(PRECOMPILED_HEADER_DIR)/precompiled.hpp.gch
+ ifeq ($(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 effort 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
*** 113,133 ****
--- 176,210 ----
CFLAGS += $(LLVM_CFLAGS)
endif
CFLAGS += $(VM_PICFLAG)
CFLAGS += -fno-rtti
CFLAGS += -fno-exceptions
CFLAGS += -pthread
CFLAGS += -fcheck-new
# version 4 and above support fvisibility=hidden (matches jni_x86.h file)
! # except 4.1.2 gives pointless warnings that can't be disabled (afaik)
ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0"
CFLAGS += -fvisibility=hidden
+ ifeq ($(USE_CLANG),)
+ CFLAGS += -pthread
+ CFLAGS += -fcheck-new
! # version 4 and above support fvisibility=hidden (matches jni_x86.h file)
+ # except 4.1.2 gives pointless warnings that can't be disabled (afaik)
+ ifneq "$(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/zero = $(ZERO_ARCHFLAG)
*** 161,178 ****
--- 238,266 ----
# Compiler warnings are treated as errors
ifneq ($(COMPILER_WARNINGS_FATAL),false)
WARNINGS_ARE_ERRORS = -Werror
endif
# Except for a few acceptable ones
# Since GCC 4.3, -Wconversion has changed its meanings to warn these implicit
# conversions which might affect the values. To avoid that, we need to turn
# it off explicitly.
ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0"
+ ifeq ($(USE_CLANG), true)
+ # However we need to clean the code up before we can unrestrictedly enable this option with Clang
+ WARNINGS_ARE_ERRORS += -Wno-unused-value -Wno-logical-op-parentheses -Wno-parentheses-equality -Wno-parentheses
+ WARNINGS_ARE_ERRORS += -Wno-switch -Wno-tautological-compare
+ # Not yet supported by clang in Xcode 4.6.2
+ # WARNINGS_ARE_ERRORS += -Wno-tautological-constant-out-of-range-compare
+ WARNINGS_ARE_ERRORS += -Wno-delete-non-virtual-dtor -Wno-deprecated -Wno-format -Wno-dynamic-class-memaccess
+ WARNINGS_ARE_ERRORS += -Wno-return-type -Wno-empty-body
+ endif
+
WARNING_FLAGS = -Wpointer-arith -Wsign-compare -Wundef
else
WARNING_FLAGS = -Wpointer-arith -Wconversion -Wsign-compare -Wundef
+
+ ifeq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0"
+ # 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.
+ WARNING_FLAGS = -Wunused-function
+ ifeq ($(USE_CLANG),)
+ WARNINGS_FLAGS += -Wconversion
+ endif
endif
CFLAGS_WARN/DEFAULT = $(WARNINGS_ARE_ERRORS) $(WARNING_FLAGS)
# Special cases
CFLAGS_WARN/BYFILE = $(CFLAGS_WARN/$@)$(CFLAGS_WARN/DEFAULT$(CFLAGS_WARN/$@))
*** 212,229 ****
--- 300,327 ----
OPT_CFLAGS += -fno-expensive-optimizations
endif
OPT_CFLAGS/NOOPT=-O0
# 6835796. Problem in GCC 4.3.0 with mulnode.o optimized compilation.
! ifneq "$(shell expr \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) = 3 \) \))" "0"
OPT_CFLAGS/mulnode.o += -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 += $(OPT_CFLAGS/NOOPT)
+ endif
endif
# Flags for generating make dependency flags.
! ifneq ("${CC_VER_MAJOR}", "2")
! DEPFLAGS = -fpch-deps -MMD -MP -MF $(DEP_DIR)/$(@:%=%.d)
! DEPFLAGS = -MMD -MP -MF $(DEP_DIR)/$(@:%=%.d)
! ifeq ($(USE_CLANG),)
+ ifneq ($(CC_VER_MAJOR), 2)
+ DEPFLAGS += -fpch-deps
+ endif
endif
# -DDONT_USE_PRECOMPILED_HEADER will exclude all includes in precompiled.hpp.
ifeq ($(USE_PRECOMPILED_HEADER),0)
CFLAGS += -DDONT_USE_PRECOMPILED_HEADER
*** 247,263 ****
--- 345,363 ----
# Linker flags
# statically link libstdc++.so, work with gcc but ignored by g++
STATIC_STDCXX = -Wl,-Bstatic -lstdc++ -Wl,-Bdynamic
# statically link libgcc and/or libgcc_s, libgcc does not exist before gcc-3.x.
ifneq ("${CC_VER_MAJOR}", "2")
STATIC_LIBGCC += -static-libgcc
endif
+ ifeq ($(USE_CLANG),)
+ # statically link libgcc and/or libgcc_s, libgcc does not exist before gcc-3.x.
+ ifneq ("${CC_VER_MAJOR}", "2")
+ STATIC_LIBGCC += -static-libgcc
+ endif
! ifeq ($(BUILDARCH), ia64)
! LFLAGS += -Wl,-relax
! LFLAGS += -Wl,-relax
+ endif
endif
# Use $(MAPFLAG:FILENAME=real_file_name) to specify a map file.
MAPFLAG = -Xlinker --version-script=FILENAME
*** 294,322 ****
--- 394,428 ----
endif
#------------------------------------------------------------------------
# Debug flags
# 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)),)
DEBUG_CFLAGS += -gstabs
+ ifeq ($(USE_CLANG), true)
+ # Restrict the debug information created by Clang to avoid
+ # too big object files and speed the build up a little bit
+ # (see http://llvm.org/bugs/show_bug.cgi?id=7554)
+ CFLAGS += -flimit-debug-info
endif
! # DEBUG_BINARIES overrides everything, use full -g debug information
! # DEBUG_BINARIES uses full -g debug information for all configs
ifeq ($(DEBUG_BINARIES), true)
! DEBUG_CFLAGS = -g
CFLAGS += $(DEBUG_CFLAGS)
! 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)),)
+ DEBUG_CFLAGS += -gstabs
+ endif
endif
# If we are building HEADLESS, pass on to VM
# so it can set the java.awt.headless property
ifdef HEADLESS
make/bsd/makefiles/gcc.make
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