Makefile.standalone - SwiftShader - Git at Google

 # The following variables will likely need to be modified, depending on where
 # and how you built LLVM & Clang. They can be overridden in a command-line
 # invocation of make, like:
 #
 #   make LLVM_SRC_PATH=<path> LLVM_BIN_PATH=<path> \
 #        LIBCXX_INSTALL_PATH=<path> CLANG_PATH=<path> ...
 #

 # LLVM_SRC_PATH is the path to the root of the checked out source code. This
 # directory should contain the configure script, the include/ and lib/
 # directories of LLVM, Clang in tools/clang/, etc.
 # Alternatively, if you're building vs. a binary download of LLVM, then
 # LLVM_SRC_PATH can point to the main untarred directory.
 LLVM_SRC_PATH ?= ../llvm

 # LLVM_BIN_PATH is the directory where binaries are placed by the LLVM build
 # process. It should contain the tools like opt, llc and clang. The default
 # reflects a debug build with autotools (configure & make).
 LLVM_BIN_PATH ?= $(shell readlink -e \
 	../../out/llvm_x86_64_linux_work/Release+Asserts/bin)

 # LIBCXX_INSTALL_PATH is the directory where libc++ is located. It should
 # contain header files and corresponding libraries
 LIBCXX_INSTALL_PATH ?= $(shell readlink -e \
 	../../../toolchain/linux_x86/pnacl_newlib)

 # CLANG_PATH is the location of the clang compiler to use.
 CLANG_PATH ?= $(shell readlink -e \
 	../../../../third_party/llvm-build/Release+Asserts/bin)

 HOST_ARCH ?= x86_64
 ifeq ($(HOST_ARCH),x86_64)
   HOST_FLAGS = -m64 -stdlib=libc++
 else
   ifeq ($(HOST_ARCH),x86)
     HOST_FLAGS = -m32 -stdlib=libc++
   endif
 endif

 ifdef DEBUG
   OBJDIR = build/Debug
   OPTLEVEL = -O0
 else
   OBJDIR = build/Release
   OPTLEVEL = -O2
 endif

 # The list of CXX defines that are dependent on build parameters.
 CXX_DEFINES =

 ifdef MINIMAL
   NOASSERT = 1
   OBJDIR := $(OBJDIR)+Min
   CXX_DEFINES += -DALLOW_DUMP=0 -DALLOW_LLVM_CL=0 -DALLOW_LLVM_IR=0 \
 	-DALLOW_LLVM_IR_AS_INPUT=0 -DALLOW_DISABLE_IR_GEN=0
 else
   CXX_DEFINES += -DALLOW_DUMP=1 -DALLOW_LLVM_CL=1 -DALLOW_LLVM_IR=1 \
 	-DALLOW_LLVM_IR_AS_INPUT=1 -DALLOW_DISABLE_IR_GEN=1
 endif

 ifdef NOASSERT
   ASSERTIONS = -DNDEBUG
 else
   ASSERTIONS =
   OBJDIR := $(OBJDIR)+Asserts
 endif

 $(info -----------------------------------------------)
 $(info Using LLVM_SRC_PATH = $(LLVM_SRC_PATH))
 $(info Using LLVM_BIN_PATH = $(LLVM_BIN_PATH))
 $(info Using LIBCXX_INSTALL_PATH = $(LIBCXX_INSTALL_PATH))
 $(info Using CLANG_PATH = $(CLANG_PATH))
 $(info Using HOST_ARCH     = $(HOST_ARCH))
 $(info -----------------------------------------------)

 LLVM_CXXFLAGS := `$(LLVM_BIN_PATH)/llvm-config --cxxflags`
 LLVM_LDFLAGS := `$(LLVM_BIN_PATH)/llvm-config --libs` \
                 `$(LLVM_BIN_PATH)/llvm-config --ldflags` \
                 `$(LLVM_BIN_PATH)/llvm-config --system-libs`

 # It's recommended that CXX matches the compiler you used to build LLVM itself.
 CCACHE := `command -v ccache`
 CXX := CCACHE_CPP2=yes $(CCACHE) $(CLANG_PATH)/clang++

 CXXFLAGS := $(LLVM_CXXFLAGS) -std=c++11 -Wall -Wextra -Werror -fno-rtti \
 	-fno-exceptions $(OPTLEVEL) $(ASSERTIONS) $(CXX_DEFINES) -g \
 	$(HOST_FLAGS) -Wno-error=unused-parameter \
 	-I$(LIBCXX_INSTALL_PATH)/include/c++/v1
 LDFLAGS := $(HOST_FLAGS) -L$(LIBCXX_INSTALL_PATH)/lib

 SRCS = \
 	assembler.cpp \
 	assembler_ia32.cpp \
 	IceCfg.cpp \
 	IceCfgNode.cpp \
 	IceELFObjectWriter.cpp \
 	IceELFSection.cpp \
 	IceGlobalContext.cpp \
 	IceGlobalInits.cpp \
 	IceInst.cpp \
 	IceInstX8632.cpp \
 	IceIntrinsics.cpp \
 	IceLiveness.cpp \
 	IceOperand.cpp \
 	IceRegAlloc.cpp \
 	IceRNG.cpp \
 	IceTargetLowering.cpp \
 	IceTargetLoweringX8632.cpp \
 	IceTimerTree.cpp \
 	IceTranslator.cpp \
 	IceTypeConverter.cpp \
 	IceTypes.cpp \
 	llvm2ice.cpp \
 	PNaClTranslator.cpp

 ifndef MINIMAL
   SRCS += IceConverter.cpp
 endif

 OBJS=$(patsubst %.cpp, $(OBJDIR)/%.o, $(SRCS))

 UNITTEST_SRCS = \
 	IceELFSectionTest.cpp

 UNITTEST_OBJS = $(patsubst %.cpp, $(OBJDIR)/unittest/%.o, $(UNITTEST_SRCS))
 UNITTEST_LIB_OBJS = $(filter-out $(OBJDIR)/llvm2ice.o,$(OBJS))

 # Keep all the first target so it's the default.
 all: $(OBJDIR)/llvm2ice make_symlink

 # Creates symbolic link so that testing is easier. Also runs
 # llvm2ice to verify that the defines flags have valid values,
 # as well as describe the corresponding build attributes.
 make_symlink: $(OBJDIR)/llvm2ice
 	rm -rf llvm2ice
 	ln -s $(OBJDIR)/llvm2ice
 	@echo "Build Attributes:"
 	@$(OBJDIR)/llvm2ice --build-atts

 .PHONY: all make_symlink

 # TODO(kschimpf): Fix python scripts to directly get build attributes
 # rather than generating $(OBJDIR)/llvm2ice.build_atts.
 $(OBJDIR)/llvm2ice: $(OBJS)
 	$(CXX) $(LDFLAGS) -o $@ $^ $(LLVM_LDFLAGS) \
                -Wl,-rpath=$(abspath $(LIBCXX_INSTALL_PATH)/lib)

 # TODO: Be more precise than "*.h" here and elsewhere.
 $(OBJS): $(OBJDIR)/%.o: src/%.cpp src/*.h src/*.def
 	$(CXX) -c $(CXXFLAGS) $< -o $@

 $(OBJDIR)/run_unittests: $(UNITTEST_OBJS) $(UNITTEST_LIB_OBJS)
 	$(CXX) $(LDFLAGS) -o $@ $^ $(LLVM_LDFLAGS) -lgtest -lgtest_main -ldl \
                -Wl,-rpath=$(abspath $(LIBCXX_INSTALL_PATH)/lib)

 $(UNITTEST_OBJS): $(OBJDIR)/unittest/%.o: unittest/%.cpp
 	$(CXX) -c $(CXXFLAGS) \
 		-Isrc/ \
 		-I$(LLVM_SRC_PATH)/utils/unittest/googletest/include \
 		-DGTEST_HAS_RTTI=0 -DGTEST_USE_OWN_TR1_TUPLE \
 		$< -o $@

 $(OBJS): | $(OBJDIR)

 $(UNITTEST_OBJS): | $(OBJDIR)/unittest

 $(OBJDIR):
 	@mkdir -p $@

 $(OBJDIR)/unittest: $(OBJDIR)
 	@mkdir -p $@

 check-lit: llvm2ice make_symlink
 	LLVM_BIN_PATH=$(LLVM_BIN_PATH) \
 	$(LLVM_SRC_PATH)/utils/lit/lit.py -sv tests_lit

 check-unit: $(OBJDIR)/run_unittests
 	$(OBJDIR)/run_unittests

 ifdef MINIMAL
 check: check-lit check-unit
 	@echo "Crosstests ignored, minimal build"
 else
 check: check-lit check-unit
 	(cd crosstest; ./runtests.sh)
 endif

 # TODO: Fix the use of wildcards.
 # Assumes clang-format is within $PATH.
 format:
 	clang-format -style=LLVM -i src/*.h src/*.cpp

 # Assumes clang-format-diff.py is within $PATH, and that the
 # clang-format it calls is also within $PATH.  This may require adding
 # a component to $PATH, or creating symlinks within some existing
 # $PATH component.  Uses the one in /usr/lib/clang-format/ if it
 # exists.
 ifeq (,$(wildcard /usr/lib/clang-format/clang-format-diff.py))
   CLANG_FORMAT_DIFF = clang-format-diff.py
 else
   CLANG_FORMAT_DIFF = /usr/lib/clang-format/clang-format-diff.py
 endif
 format-diff:
 	git diff -U0 `git merge-base HEAD master` | \
 	$(CLANG_FORMAT_DIFF) -p1 -style=LLVM -i

 clean:
 	rm -rf llvm2ice *.o $(OBJDIR)

 clean-all: clean
 	rm -rf build/
	# The following variables will likely need to be modified, depending on where
	# and how you built LLVM & Clang. They can be overridden in a command-line
	# invocation of make, like:
	#
	# make LLVM_SRC_PATH=<path> LLVM_BIN_PATH=<path> \
	# LIBCXX_INSTALL_PATH=<path> CLANG_PATH=<path> ...
	#

	# LLVM_SRC_PATH is the path to the root of the checked out source code. This
	# directory should contain the configure script, the include/ and lib/
	# directories of LLVM, Clang in tools/clang/, etc.
	# Alternatively, if you're building vs. a binary download of LLVM, then
	# LLVM_SRC_PATH can point to the main untarred directory.
	LLVM_SRC_PATH ?= ../llvm

	# LLVM_BIN_PATH is the directory where binaries are placed by the LLVM build
	# process. It should contain the tools like opt, llc and clang. The default
	# reflects a debug build with autotools (configure & make).
	LLVM_BIN_PATH ?= $(shell readlink -e \
	../../out/llvm_x86_64_linux_work/Release+Asserts/bin)

	# LIBCXX_INSTALL_PATH is the directory where libc++ is located. It should
	# contain header files and corresponding libraries
	LIBCXX_INSTALL_PATH ?= $(shell readlink -e \
	../../../toolchain/linux_x86/pnacl_newlib)

	# CLANG_PATH is the location of the clang compiler to use.
	CLANG_PATH ?= $(shell readlink -e \
	../../../../third_party/llvm-build/Release+Asserts/bin)

	HOST_ARCH ?= x86_64
	ifeq ($(HOST_ARCH),x86_64)
	HOST_FLAGS = -m64 -stdlib=libc++
	else
	ifeq ($(HOST_ARCH),x86)
	HOST_FLAGS = -m32 -stdlib=libc++
	endif
	endif

	ifdef DEBUG
	OBJDIR = build/Debug
	OPTLEVEL = -O0
	else
	OBJDIR = build/Release
	OPTLEVEL = -O2
	endif

	# The list of CXX defines that are dependent on build parameters.
	CXX_DEFINES =

	ifdef MINIMAL
	NOASSERT = 1
	OBJDIR := $(OBJDIR)+Min
	CXX_DEFINES += -DALLOW_DUMP=0 -DALLOW_LLVM_CL=0 -DALLOW_LLVM_IR=0 \
	-DALLOW_LLVM_IR_AS_INPUT=0 -DALLOW_DISABLE_IR_GEN=0
	else
	CXX_DEFINES += -DALLOW_DUMP=1 -DALLOW_LLVM_CL=1 -DALLOW_LLVM_IR=1 \
	-DALLOW_LLVM_IR_AS_INPUT=1 -DALLOW_DISABLE_IR_GEN=1
	endif

	ifdef NOASSERT
	ASSERTIONS = -DNDEBUG
	else
	ASSERTIONS =
	OBJDIR := $(OBJDIR)+Asserts
	endif

	$(info -----------------------------------------------)
	$(info Using LLVM_SRC_PATH = $(LLVM_SRC_PATH))
	$(info Using LLVM_BIN_PATH = $(LLVM_BIN_PATH))
	$(info Using LIBCXX_INSTALL_PATH = $(LIBCXX_INSTALL_PATH))
	$(info Using CLANG_PATH = $(CLANG_PATH))
	$(info Using HOST_ARCH = $(HOST_ARCH))
	$(info -----------------------------------------------)

	LLVM_CXXFLAGS := `$(LLVM_BIN_PATH)/llvm-config --cxxflags`
	LLVM_LDFLAGS := `$(LLVM_BIN_PATH)/llvm-config --libs` \
	`$(LLVM_BIN_PATH)/llvm-config --ldflags` \
	`$(LLVM_BIN_PATH)/llvm-config --system-libs`

	# It's recommended that CXX matches the compiler you used to build LLVM itself.
	CCACHE := `command -v ccache`
	CXX := CCACHE_CPP2=yes $(CCACHE) $(CLANG_PATH)/clang++

	CXXFLAGS := $(LLVM_CXXFLAGS) -std=c++11 -Wall -Wextra -Werror -fno-rtti \
	-fno-exceptions $(OPTLEVEL) $(ASSERTIONS) $(CXX_DEFINES) -g \
	$(HOST_FLAGS) -Wno-error=unused-parameter \
	-I$(LIBCXX_INSTALL_PATH)/include/c++/v1
	LDFLAGS := $(HOST_FLAGS) -L$(LIBCXX_INSTALL_PATH)/lib

	SRCS = \
	assembler.cpp \
	assembler_ia32.cpp \
	IceCfg.cpp \
	IceCfgNode.cpp \
	IceELFObjectWriter.cpp \
	IceELFSection.cpp \
	IceGlobalContext.cpp \
	IceGlobalInits.cpp \
	IceInst.cpp \
	IceInstX8632.cpp \
	IceIntrinsics.cpp \
	IceLiveness.cpp \
	IceOperand.cpp \
	IceRegAlloc.cpp \
	IceRNG.cpp \
	IceTargetLowering.cpp \
	IceTargetLoweringX8632.cpp \
	IceTimerTree.cpp \
	IceTranslator.cpp \
	IceTypeConverter.cpp \
	IceTypes.cpp \
	llvm2ice.cpp \
	PNaClTranslator.cpp

	ifndef MINIMAL
	SRCS += IceConverter.cpp
	endif

	OBJS=$(patsubst %.cpp, $(OBJDIR)/%.o, $(SRCS))

	UNITTEST_SRCS = \
	IceELFSectionTest.cpp

	UNITTEST_OBJS = $(patsubst %.cpp, $(OBJDIR)/unittest/%.o, $(UNITTEST_SRCS))
	UNITTEST_LIB_OBJS = $(filter-out $(OBJDIR)/llvm2ice.o,$(OBJS))

	# Keep all the first target so it's the default.
	all: $(OBJDIR)/llvm2ice make_symlink

	# Creates symbolic link so that testing is easier. Also runs
	# llvm2ice to verify that the defines flags have valid values,
	# as well as describe the corresponding build attributes.
	make_symlink: $(OBJDIR)/llvm2ice
	rm -rf llvm2ice
	ln -s $(OBJDIR)/llvm2ice
	@echo "Build Attributes:"
	@$(OBJDIR)/llvm2ice --build-atts

	.PHONY: all make_symlink

	# TODO(kschimpf): Fix python scripts to directly get build attributes
	# rather than generating $(OBJDIR)/llvm2ice.build_atts.
	$(OBJDIR)/llvm2ice: $(OBJS)
	$(CXX) $(LDFLAGS) -o $@ $^ $(LLVM_LDFLAGS) \
	-Wl,-rpath=$(abspath $(LIBCXX_INSTALL_PATH)/lib)

	# TODO: Be more precise than "*.h" here and elsewhere.
	$(OBJS): $(OBJDIR)/%.o: src/%.cpp src/.h src/.def
	$(CXX) -c $(CXXFLAGS) $< -o $@

	$(OBJDIR)/run_unittests: $(UNITTEST_OBJS) $(UNITTEST_LIB_OBJS)
	$(CXX) $(LDFLAGS) -o $@ $^ $(LLVM_LDFLAGS) -lgtest -lgtest_main -ldl \
	-Wl,-rpath=$(abspath $(LIBCXX_INSTALL_PATH)/lib)

	$(UNITTEST_OBJS): $(OBJDIR)/unittest/%.o: unittest/%.cpp
	$(CXX) -c $(CXXFLAGS) \
	-Isrc/ \
	-I$(LLVM_SRC_PATH)/utils/unittest/googletest/include \
	-DGTEST_HAS_RTTI=0 -DGTEST_USE_OWN_TR1_TUPLE \
	$< -o $@

	$(OBJS): \| $(OBJDIR)

	$(UNITTEST_OBJS): \| $(OBJDIR)/unittest

	$(OBJDIR):
	@mkdir -p $@

	$(OBJDIR)/unittest: $(OBJDIR)
	@mkdir -p $@

	check-lit: llvm2ice make_symlink
	LLVM_BIN_PATH=$(LLVM_BIN_PATH) \
	$(LLVM_SRC_PATH)/utils/lit/lit.py -sv tests_lit

	check-unit: $(OBJDIR)/run_unittests
	$(OBJDIR)/run_unittests

	ifdef MINIMAL
	check: check-lit check-unit
	@echo "Crosstests ignored, minimal build"
	else
	check: check-lit check-unit
	(cd crosstest; ./runtests.sh)
	endif

	# TODO: Fix the use of wildcards.
	# Assumes clang-format is within $PATH.
	format:
	clang-format -style=LLVM -i src/.h src/.cpp

	# Assumes clang-format-diff.py is within $PATH, and that the
	# clang-format it calls is also within $PATH. This may require adding
	# a component to $PATH, or creating symlinks within some existing
	# $PATH component. Uses the one in /usr/lib/clang-format/ if it
	# exists.
	ifeq (,$(wildcard /usr/lib/clang-format/clang-format-diff.py))
	CLANG_FORMAT_DIFF = clang-format-diff.py
	else
	CLANG_FORMAT_DIFF = /usr/lib/clang-format/clang-format-diff.py
	endif
	format-diff:
	git diff -U0 `git merge-base HEAD master` \| \
	$(CLANG_FORMAT_DIFF) -p1 -style=LLVM -i

	clean:
	rm -rf llvm2ice *.o $(OBJDIR)

	clean-all: clean
	rm -rf build/