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