| # -*- makefile -*- |
| # Copyright 2012 The ChromiumOS Authors |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| # |
| # Toolchain configuration build system |
| # |
| |
| # Toolchain configuration |
| |
| min_make_version:=3.82 |
| make_version_ok:=$(filter $(min_make_version), \ |
| $(firstword $(sort $(MAKE_VERSION) $(min_make_version)))) |
| ifeq ($(make_version_ok),) |
| $(error ERROR: GNU make version $(min_make_version) or higher required.) |
| endif |
| |
| # Default to clang if TEST_ASAN is enabled |
| ifneq ($(TEST_FUZZ)$(TEST_ASAN)$(TEST_MSAN)$(TEST_UBSAN),) |
| ifeq ($(CC_FOR_BUILD),) |
| CROSS_COMPILE_CC_NAME=clang |
| else |
| CROSS_COMPILE_CC_NAME=$(CC_FOR_BUILD) |
| endif |
| endif |
| |
| ifeq ($(USE_CXX_COMPILER), 1) |
| COMPILER=$(CROSS_COMPILE)$(CROSS_COMPILE_CXX_NAME) |
| else |
| COMPILER=$(CCACHE) $(CROSS_COMPILE)$(CROSS_COMPILE_CC_NAME) |
| endif |
| |
| # Try not to assume too much about optional tools and prefixes |
| CCACHE:=$(shell which ccache 2>/dev/null) |
| ifeq ($(origin HOST_CROSS_COMPILE),undefined) |
| # If building with Portage use the environment variable it provides. |
| # https://wiki.gentoo.org/wiki/Embedded_Handbook/General/Introduction#Environment_variables |
| ifneq ($(CHOST),) |
| HOST_CROSS_COMPILE:=$(CHOST)- |
| else |
| HOST_CROSS_COMPILE:=$(if $(shell which x86_64-pc-linux-gnu-$(CROSS_COMPILE_CC_NAME) 2>/dev/null),x86_64-pc-linux-gnu-,) |
| endif |
| endif |
| |
| # Assume we want to use same compiler for both C and C++ |
| ifeq ($(CROSS_COMPILE_CC_NAME),gcc) |
| CROSS_COMPILE_CXX_NAME?=g++ |
| else |
| ifeq ($(CROSS_COMPILE_CC_NAME),) |
| CROSS_COMPILE_CXX_NAME?=g++ |
| else |
| CROSS_COMPILE_CXX_NAME?=$(CROSS_COMPILE_CC_NAME)++ |
| endif |
| endif |
| |
| AR=$(CROSS_COMPILE)ar |
| CC=$(CCACHE) $(CROSS_COMPILE)$(CROSS_COMPILE_CC_NAME) |
| CPP=$(CC) -E |
| CXX=$(CROSS_COMPILE)$(CROSS_COMPILE_CXX_NAME) |
| LD=$(CROSS_COMPILE)ld |
| NM=$(CROSS_COMPILE)nm |
| OBJCOPY=$(CROSS_COMPILE)objcopy |
| OBJDUMP=$(CROSS_COMPILE)objdump |
| ADDR2LINE=$(CROSS_COMPILE)addr2line |
| PKG_CONFIG?=pkg-config |
| |
| ifeq ($(shell which /usr/bin/x86_64-pc-linux-gnu-$(CROSS_COMPILE_CC_NAME) 2>/dev/null),) |
| BUILDCC?=$(CCACHE) $(CROSS_COMPILE_CC_NAME) |
| else |
| BUILDCC?=$(CCACHE) /usr/bin/x86_64-pc-linux-gnu-$(CROSS_COMPILE_CC_NAME) |
| endif |
| BUILDCC_NAME?=$(CROSS_COMPILE_CC_NAME) |
| HOSTCC?=$(CCACHE) $(HOST_CROSS_COMPILE)$(CROSS_COMPILE_CC_NAME) |
| HOSTCXX?=$(CCACHE) $(HOST_CROSS_COMPILE)$(CROSS_COMPILE_CXX_NAME) |
| HOST_PKG_CONFIG?=$(HOST_CROSS_COMPILE)pkg-config |
| PROTOC?=protoc |
| GCOV=$(CROSS_COMPILE)gcov |
| ifeq ($(CROSS_COMPILE_CC_NAME),clang) |
| HOSTGCOV=$(CURDIR)/util/llvm-gcov.sh |
| else |
| HOSTGCOV=$(HOST_CROSS_COMPILE)gcov |
| endif |
| |
| C_WARN = -Wstrict-prototypes -Wdeclaration-after-statement -Wno-pointer-sign |
| C_WARN += -Werror-implicit-function-declaration |
| COMMON_WARN += -Wall -Wundef \ |
| -Wno-trigraphs -Wno-format-security -Wno-address-of-packed-member \ |
| -fno-common -fno-strict-aliasing -fno-strict-overflow |
| |
| ifndef ALLOW_WARNINGS |
| COMMON_WARN+=-Werror |
| endif |
| |
| |
| UBSAN_FLAGS=-fsanitize=array-bounds,vla-bound \ |
| -fno-sanitize=vptr \ |
| -fno-sanitize-recover=all |
| |
| CFLAGS_WARN = $(COMMON_WARN) $(C_WARN) \ |
| $(COMMON_WARN-$(CROSS_COMPILE_CC_NAME)) $(C_WARN-$(CROSS_COMPILE_CC_NAME)) |
| CXXFLAGS_WARN = $(COMMON_WARN) $(COMMON_WARN-$(CROSS_COMPILE_CC_NAME)) |
| BUILDCC_WARN = $(COMMON_WARN) $(C_WARN) \ |
| $(COMMON_WARN-$(BUILDCC_NAME)) $(C_WARN-$(BUILDCC_NAME)) |
| BUILDCXX_WARN = $(COMMON_WARN) $(COMMON_WARN-$(BUILDCC_NAME)) |
| CFLAGS_DEBUG= -g |
| CFLAGS_DEBUG+=$(CFLAGS_DEBUG_CHIP) |
| CFLAGS_INCLUDE=$(foreach i,$(includes),-I$(i) ) -I. |
| CFLAGS_TEST=$(if $(TEST_BUILD),-DTEST_BUILD=$(EMPTY) \ |
| -DTEST_TASKFILE=$(PROJECT).tasklist,) \ |
| $(if $(CTS_MODULE), $(CFLAGS_CTS)) \ |
| $(if $(EMU_BUILD),-DEMU_BUILD=$(EMPTY)) \ |
| -DTEST_$(PROJECT)=$(EMPTY) -DTEST_$(UC_PROJECT)=$(EMPTY) \ |
| $(if $(TEST_ASAN),-fsanitize=address) \ |
| $(if $(TEST_MSAN),-fsanitize=memory) \ |
| $(if $(TEST_UBSAN),$(UBSAN_FLAGS)) \ |
| $(if $(TEST_FUZZ),-fsanitize=fuzzer-no-link -fPIE \ |
| -fcoverage-mapping \ |
| -fprofile-instr-generate \ |
| -DTEST_FUZZ=$(EMPTY)) |
| CFLAGS_COVERAGE=$(if $(TEST_COVERAGE),-fprofile-arcs -ftest-coverage \ |
| -DTEST_COVERAGE=$(EMPTY),) |
| CFLAGS_DEFINE=-DOUTDIR=$(out)/$(BLD) -DCHIP=$(CHIP) -DBOARD_TASKFILE=$(_tsk_lst_file) \ |
| -DBOARD=$(BOARD) -DCORE=$(CORE) -DPROJECT=$(PROJECT) \ |
| -DCHIP_VARIANT=$(CHIP_VARIANT) -DCHIP_FAMILY=$(CHIP_FAMILY) \ |
| -DBOARD_$(UC_BOARD)=$(EMPTY) \ |
| -DBRANCH_$(UC_BRANCH)=$(BRANCH) \ |
| -DCHIP_$(UC_CHIP)=$(EMPTY) \ |
| -DCORE_$(UC_CORE)=$(EMPTY) \ |
| -DCHIP_VARIANT_$(UC_CHIP_VARIANT)=$(EMPTY) \ |
| -DCHIP_FAMILY_$(UC_CHIP_FAMILY)=$(EMPTY) \ |
| -DFINAL_OUTDIR=$(out) \ |
| $(CFLAGS_BASEBOARD) |
| CPPFLAGS=$(CFLAGS_DEFINE) $(CFLAGS_INCLUDE) $(CFLAGS_TEST) \ |
| $(EXTRA_CFLAGS) $(CFLAGS_COVERAGE) $(LATE_CFLAGS_DEFINE) \ |
| -DSECTION_IS_$(BLD)=$(EMPTY) -DSECTION=$(BLD) $(CPPFLAGS_$(BLD)) |
| BUILD_CPPFLAGS=$(CFLAGS_DEFINE) -Icore/host $(CFLAGS_INCLUDE) $(CFLAGS_TEST) \ |
| $(EXTRA_CFLAGS) $(CFLAGS_COVERAGE) $(LATE_CFLAGS_DEFINE) \ |
| -DSECTION_IS_$(BLD)=$(EMPTY) -DSECTION=$(BLD) $(CPPFLAGS_$(BLD)) |
| HOST_CPPFLAGS=$(CFLAGS_DEFINE) $(CFLAGS_INCLUDE) $(CFLAGS_TEST) \ |
| $(EXTRA_CFLAGS) $(CFLAGS_COVERAGE) $(LATE_CFLAGS_DEFINE) \ |
| -DSECTION_IS_$(BLD)=$(EMPTY) -DSECTION=$(BLD) $(CPPFLAGS_$(BLD)) |
| ifneq ($(BOARD),host) |
| CPPFLAGS+=-ffreestanding -fno-builtin -nostdinc -nostdlib -fno-PIC |
| CPPFLAGS+=-Ibuiltin/ |
| else |
| CPPFLAGS+=-Og |
| endif |
| CPPFLAGS+= -DCHROMIUM_EC=$(EMPTY) |
| CFLAGS=$(CPPFLAGS) $(CFLAGS_CPU) $(CFLAGS_DEBUG) $(COMMON_WARN) $(COMMON_WARN-$(CROSS_COMPILE_CC_NAME)) $(CFLAGS_y) |
| CFLAGS+= -ffunction-sections -fshort-wchar |
| CFLAGS+= -fno-delete-null-pointer-checks |
| CFLAGS+= -fno-PIC |
| CFLAGS+=$(CFLAGS_CHIP) $(CFLAGS_BOARD) |
| |
| CXXFLAGS+=-DPROTOBUF_INLINE_NOT_IN_HEADERS=0 |
| |
| FTDIVERSION:=$(shell $(PKG_CONFIG) --modversion libftdi1 2>/dev/null) |
| ifneq ($(FTDIVERSION),) |
| LIBFTDI_NAME=ftdi1 |
| else |
| LIBFTDI_NAME=ftdi |
| endif |
| |
| LIBFTDIUSB_CFLAGS:=$(shell $(PKG_CONFIG) --cflags lib${LIBFTDI_NAME} libusb-1.0) |
| LIBFTDIUSB_LDLIBS:=$(shell $(PKG_CONFIG) --libs lib${LIBFTDI_NAME} libusb-1.0) |
| |
| ifeq ($(TEST_FUZZ),y) |
| LIBPROTOBUF_CFLAGS:=$(shell $(PKG_CONFIG) --cflags protobuf) |
| LIBPROTOBUF_LDLIBS:=$(shell $(PKG_CONFIG) --libs protobuf) |
| |
| LIBPROTOBUF_MUTATOR_CFLAGS:=${LIBPROTOBUF_CFLAGS} \ |
| $(shell $(PKG_CONFIG) --cflags libprotobuf-mutator) |
| LIBPROTOBUF_MUTATOR_LDLIBS:=$(shell $(PKG_CONFIG) --libs libprotobuf-mutator) \ |
| ${LIBPROTOBUF_LDLIBS} |
| endif |
| |
| BUILD_CFLAGS=$(LIBFTDIUSB_BUILD_CFLAGS) $(BUILD_CPPFLAGS) -O3 $(CFLAGS_DEBUG) |
| BUILD_CFLAGS+=$(BUILDCC_WARN) |
| BUILD_CFLAGS+=-DCHROMIUM_EC=$(EMPTY) |
| HOST_CFLAGS=$(HOST_CPPFLAGS) -O3 $(CFLAGS_DEBUG) $(CFLAGS_WARN) \ |
| -DHOST_TOOLS_BUILD=$(EMPTY) |
| HOST_CFLAGS+=$(LIBFTDIUSB_CFLAGS) |
| HOST_CFLAGS+=-DCHROMIUM_EC=$(EMPTY) |
| ifneq (${SYSROOT},) |
| LDFLAGS_EXTRA+=--sysroot=${SYSROOT} |
| endif |
| LDFLAGS=-nostdlib -no-pie -g -Wl,-X -Wl,--gc-sections -Wl,--build-id=none \ |
| $(LDFLAGS_EXTRA) $(CFLAGS_CPU) $(CFLAGS_CHIP) $(CFLAGS_BOARD) |
| BUILD_LDFLAGS=$(LIBFTDIUSB_LDLIBS) |
| HOST_LDFLAGS=$(LIBFTDIUSB_LDLIBS) |
| HOST_TEST_LDFLAGS=-Wl,-T core/host/host_exe.lds -lrt -pthread -rdynamic -lm -g \ |
| -fuse-ld=bfd -no-pie \ |
| $(if $(TEST_COVERAGE), -fprofile-arcs) \ |
| $(if $(TEST_ASAN), -fsanitize=address) \ |
| $(if $(TEST_MSAN), -fsanitize=memory) \ |
| $(if $(TEST_UBSAN), ${UBSAN_FLAGS}) \ |
| $(if $(TEST_FUZZ), -fsanitize=fuzzer -fcoverage-mapping -fprofile-instr-generate) |
| |
| # utility function to provide overridable defaults |
| # $1: name of variable to set |
| # $2: first default to use |
| # $3: second default to use |
| set-option = $(eval $1=$$(strip $$(if $(2),$(2),$(3)))) |
