## ## This file is part of the coreboot project. ## ## Copyright (C) 2008 Advanced Micro Devices, Inc. ## Copyright (C) 2008 Uwe Hermann <uwe@hermann-uwe.de> ## Copyright (C) 2009-2010 coresystems GmbH ## Copyright (C) 2011 secunet Security Networks AG ## ## Redistribution and use in source and binary forms, with or without ## modification, are permitted provided that the following conditions ## are met: ## 1. Redistributions of source code must retain the above copyright ## notice, this list of conditions and the following disclaimer. ## 2. Redistributions in binary form must reproduce the above copyright ## notice, this list of conditions and the following disclaimer in the ## documentation and/or other materials provided with the distribution. ## 3. The name of the author may not be used to endorse or promote products ## derived from this software without specific prior written permission. ## ## THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ## ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE ## IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ## ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE ## FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL ## DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS ## OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) ## HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT ## LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY ## OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF ## SUCH DAMAGE. ## # in addition to the dependency below, create the file if it doesn't exist # to silence stupid warnings about a file that would be generated anyway. $(if $(wildcard .xcompile),,$(eval $(shell util/xcompile/xcompile $(XGCCPATH) > .xcompile))) .xcompile: util/xcompile/xcompile A=`mktemp $@.XXXXXX`; $< $(XGCCPATH) > $$A && mv $$A $@ 2> /dev/null include .xcompile export top := $(CURDIR) export src := src export srck := $(top)/util/kconfig export obj ?= build export objutil ?= $(obj)/util export objk := $(objutil)/kconfig export KCONFIG_AUTOHEADER := $(obj)/config.h export KCONFIG_AUTOCONFIG := $(obj)/auto.conf export KCONFIG_DEPENDENCIES := $(obj)/auto.conf.cmd export KCONFIG_SPLITCONFIG := $(obj)/config export KCONFIG_TRISTATE := $(obj)/tristate.conf export KCONFIG_NEGATIVES := 1 # directory containing the toplevel Makefile.inc TOPLEVEL := . CONFIG_SHELL := sh KBUILD_DEFCONFIG := configs/defconfig UNAME_RELEASE := $(shell uname -r) DOTCONFIG ?= .config KCONFIG_CONFIG = $(DOTCONFIG) export KCONFIG_CONFIG HAVE_DOTCONFIG := $(wildcard $(DOTCONFIG)) MAKEFLAGS += -rR --no-print-directory # Make is silent per default, but 'make V=1' will show all compiler calls. Q:=@ ifneq ($(V),1) ifneq ($(Q),) .SILENT: endif endif # Disable implicit/built-in rules to make Makefile errors fail fast. .SUFFIXES: HOSTCC := gcc HOSTCXX = g++ HOSTCFLAGS := -g HOSTCXXFLAGS := -g PREPROCESS_ONLY := -E -P -x assembler-with-cpp -undef -I . DOXYGEN := doxygen DOXYGEN_OUTPUT_DIR := doxygen all: real-all # This include must come _before_ the pattern rules below! # Order _does_ matter for pattern rules. include util/kconfig/Makefile # Three cases where we don't need fully populated $(obj) lists: # 1. when no .config exists # 2. when make config (in any flavour) is run # 3. when make distclean is run # Don't waste time on reading all Makefile.incs in these cases ifeq ($(strip $(HAVE_DOTCONFIG)),) NOCOMPILE:=1 endif ifneq ($(MAKECMDGOALS),) ifneq ($(filter %config %clean cross% lint% what-jenkins-does,$(MAKECMDGOALS)),) NOCOMPILE:=1 endif ifeq ($(MAKECMDGOALS), %clean) NOMKDIR:=1 endif endif ifeq ($(NOCOMPILE),1) include $(TOPLEVEL)/Makefile.inc real-all: config else include $(HAVE_DOTCONFIG) ifeq ($(CONFIG_COMPILER_LLVM_CLANG),y) # FIXME: armv7/aarch64 won't build right now # NOTE: clang puts compiler-rt under lib/linux/libclang_rt.builtins-i386.a # this means the triple is i386-linux-elf instead of i386-none-elf CFLAGS_x86_32 = -no-integrated-as -Qunused-arguments -target i386-linux-elf -m32 # Tone down some clang warnings CFLAGS_x86_32 += -Wno-unused-variable -Wno-unused-function -Wno-tautological-compare -Wno-shift-overflow CC_x86_32:=clang HOSTCC := clang ifneq ($(CONFIG_MMX),y) CFLAGS_x86_32 += -mno-mmx endif # FIXME: we end up with conflicting flags with this, not clear on this part. #ifneq ($(CONFIG_SSE),y) #CFLAGS_x86_32 += -mno-sse #endif CFLAGS_arm = -no-integrated-as -Qunused-arguments -target arm-eabi -ccc-gcc-name $(CC_arm) CC_arm:=clang CFLAGS_aarch64 = -no-integrated-as -Qunused-arguments -target aarch64-eabi -ccc-gcc-name $(CC_aarch64) CC_aarch64:=clang endif include toolchain.inc strip_quotes = $(subst ",,$(subst \",,$(1))) # The primary target needs to be here before we include the # other files real-all: real-target # must come rather early .SECONDEXPANSION: $(obj)/config.h: $(MAKE) oldconfig # Add a new class of source/object files to the build system add-class= \ $(eval $(1)-srcs:=) \ $(eval $(1)-objs:=) \ $(eval classes+=$(1)) # Special classes are managed types with special behaviour # On parse time, for each entry in variable $(1)-y # a handler $(1)-handler is executed with the arguments: # * $(1): directory the parser is in # * $(2): current entry add-special-class= \ $(eval $(1):=) \ $(eval special-classes+=$(1)) # Clean -y variables, include Makefile.inc # Add paths to files in X-y to X-srcs # Add subdirs-y to subdirs includemakefiles= \ $(foreach class,classes subdirs $(classes) $(special-classes), $(eval $(class)-y:=)) \ $(eval -include $(1)) \ $(foreach class,$(classes-y), $(call add-class,$(class))) \ $(foreach class,$(classes), \ $(eval $(class)-srcs+= \ $$(subst $(top)/,, \ $$(abspath $$(subst $(dir $(1))/,/,$$(addprefix $(dir $(1)),$$($(class)-y))))))) \ $(foreach special,$(special-classes), \ $(foreach item,$($(special)-y), $(call $(special)-handler,$(dir $(1)),$(item)))) \ $(eval subdirs+=$$(subst $(CURDIR)/,,$$(abspath $$(addprefix $(dir $(1)),$$(subdirs-y))))) # For each path in $(subdirs) call includemakefiles # Repeat until subdirs is empty evaluate_subdirs= \ $(eval cursubdirs:=$(subdirs)) \ $(eval subdirs:=) \ $(foreach dir,$(cursubdirs), \ $(eval $(call includemakefiles,$(dir)/Makefile.inc))) \ $(if $(subdirs),$(eval $(call evaluate_subdirs))) # collect all object files eligible for building subdirs:=$(TOPLEVEL) $(eval $(call evaluate_subdirs)) ifeq ($(FAILBUILD),1) $(error cannot continue build) endif # Eliminate duplicate mentions of source files in a class $(foreach class,$(classes),$(eval $(class)-srcs:=$(sort $($(class)-srcs)))) # Converts one or more source file paths to their corresponding build/ paths. # Only .c and .S get converted to .o, other files (like .ld) keep their name. # $1 stage name # $2 file path (list) src-to-obj=$(foreach file,$(2),$(subst .$(1),,$(basename $(patsubst src/%,$(obj)/%,$(file)))).$(1)$(patsubst %.c,%.o,$(patsubst %.S,%.o,$(suffix $(file))))) $(foreach class,$(classes),$(eval $(class)-objs:=$(call src-to-obj,$(class),$($(class)-srcs)))) # Save all objs before processing them (for dependency inclusion) originalobjs:=$(foreach var, $(addsuffix -objs,$(classes)), $($(var))) # Call post-processors if they're defined $(foreach class,$(classes),\ $(if $(value $(class)-postprocess),$(eval $(call $(class)-postprocess,$($(class)-objs))))) allsrcs:=$(foreach var, $(addsuffix -srcs,$(classes)), $($(var))) allobjs:=$(foreach var, $(addsuffix -objs,$(classes)), $($(var))) alldirs:=$(sort $(abspath $(dir $(allobjs)))) # macro to define template macros that are used by use_template macro define create_cc_template # $1 obj class # $2 source suffix (c, S, ld, ...) # $3 additional compiler flags # $4 additional dependencies ifn$(EMPTY)def $(1)-objs_$(2)_template de$(EMPTY)fine $(1)-objs_$(2)_template $$(call src-to-obj,$1,$$(1).$2): $$(1).$2 $(obj)/config.h $(4) @printf " CC $$$$(subst $$$$(obj)/,,$$$$(@))\n" $(CC_$(1)) -MMD $$$$(CPPFLAGS_$(1)) $$$$(CFLAGS_$(1)) -MT $$$$(@) $(3) -c -o $$$$@ $$$$< en$(EMPTY)def end$(EMPTY)if endef filetypes-of-class=$(subst .,,$(sort $(suffix $($(1)-srcs)))) $(foreach class,$(classes), \ $(foreach type,$(call filetypes-of-class,$(class)), \ $(eval $(class)-$(type)-ccopts += $(generic-$(type)-ccopts) $($(class)-generic-ccopts)) \ $(if $(generic-objs_$(type)_template_gen),$(eval $(call generic-objs_$(type)_template_gen,$(class))),\ $(eval $(call create_cc_template,$(class),$(type),$($(class)-$(type)-ccopts),$($(class)-$(type)-deps)))))) foreach-src=$(foreach file,$($(1)-srcs),$(eval $(call $(1)-objs_$(subst .,,$(suffix $(file)))_template,$(basename $(file))))) $(eval $(foreach class,$(classes),$(call foreach-src,$(class)))) DEPENDENCIES += $(addsuffix .d,$(basename $(allobjs))) -include $(DEPENDENCIES) printall: @$(foreach class,$(classes),echo $(class)-objs:=$($(class)-objs); ) @echo alldirs:=$(alldirs) @echo allsrcs=$(allsrcs) @echo DEPENDENCIES=$(DEPENDENCIES) @$(foreach class,$(special-classes),echo $(class):='$($(class))'; ) endif ifndef NOMKDIR $(shell mkdir -p $(KCONFIG_SPLITCONFIG) $(objutil)/kconfig/lxdialog $(additional-dirs) $(alldirs)) endif cscope: cscope -bR doxy: doxygen doxygen: $(DOXYGEN) documentation/Doxyfile.coreboot doxygen_simple: $(DOXYGEN) documentation/Doxyfile.coreboot_simple doxyclean: doxygen-clean doxygen-clean: rm -rf $(DOXYGEN_OUTPUT_DIR) clean-for-update: doxygen-clean clean-for-update-target rm -rf $(obj) .xcompile clean: clean-for-update clean-target rm -f .ccwrap clean-cscope: rm -f cscope.out distclean: clean rm -f .config .config.old ..config.tmp .kconfig.d .tmpconfig* .ccwrap .xcompile .PHONY: $(PHONY) clean clean-for-update clean-cscope cscope distclean doxygen doxy doxygen_simple