| ## |
| ## This file is part of the depthcharge project. |
| ## |
| ## Copyright (C) 2008 Advanced Micro Devices, Inc. |
| ## Copyright (C) 2008 Uwe Hermann <uwe@hermann-uwe.de> |
| ## Copyright 2012 Google Inc. |
| ## |
| ## This program is free software; you can redistribute it and/or modify |
| ## it under the terms of the GNU General Public License as published by |
| ## the Free Software Foundation; version 2 of the License. |
| ## |
| ## This program is distributed in the hope that it will be useful, |
| ## but WITHOUT ANY WARRANTY; without even the implied warranty of |
| ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| ## GNU General Public License for more details. |
| ## |
| ## You should have received a copy of the GNU General Public License |
| ## along with this program; if not, write to the Free Software |
| ## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| ## |
| |
| .SECONDEXPANSION: |
| |
| export src := $(shell pwd) |
| export srck := $(src)/util/kconfig |
| export obj := $(src)/build |
| export objk := $(obj)/util/kconfig |
| |
| export KERNELVERSION := 0.1.0 |
| export KCONFIG_AUTOHEADER := $(obj)/config.h |
| export KCONFIG_AUTOCONFIG := $(obj)/auto.conf |
| |
| CONFIG_SHELL := sh |
| ifdef BOARD |
| KBUILD_DEFCONFIG := $(src)/board/$(BOARD)/defconfig |
| endif |
| UNAME_RELEASE := $(shell uname -r) |
| HAVE_DOTCONFIG := $(wildcard .config) |
| MAKEFLAGS += -rR --no-print-directory |
| |
| # Make is silent per default, but 'make V=1' will show all compiler calls. |
| ifneq ($(V),1) |
| Q := @ |
| endif |
| |
| HOSTCC = gcc |
| HOSTCXX = g++ |
| HOSTCFLAGS := -I$(srck) -I$(objk) |
| HOSTCXXFLAGS := -I$(srck) -I$(objk) |
| |
| LIBPAYLOAD_DIR := ../libpayload/install/libpayload |
| XCC := CC=$(CC) $(LIBPAYLOAD_DIR)/bin/lpgcc |
| AS = $(LIBPAYLOAD_DIR)/bin/lpas |
| OBJCOPY ?= $(CROSS_COMPILE)objcopy |
| STRIP ?= $(CROSS_COMPILE)strip |
| LZMA := lzma |
| |
| LDSCRIPT := $(src)/src/image/depthcharge.ldscript |
| |
| |
| |
| |
| ifeq ($(strip $(HAVE_DOTCONFIG)),) |
| |
| all: config |
| |
| else |
| |
| include $(src)/.config |
| |
| ifeq ($(CONFIG_ARCH_X86),y) |
| ARCH_DIR = x86 |
| endif |
| ifeq ($(CONFIG_ARCH_ARM),y) |
| ARCH_DIR = arm |
| endif |
| |
| include $(src)/src/arch/$(ARCH_DIR)/build_vars |
| |
| INCLUDES = -Ibuild -I$(src)/src/ -I$(src)/src/arch/$(ARCH_DIR)/includes/ \ |
| -I$(VB_SOURCE)/firmware/include |
| ABI_FLAGS := $(ARCH_ABI_FLAGS) -ffreestanding -fno-builtin \ |
| -fno-stack-protector -fomit-frame-pointer |
| LINK_FLAGS := $(ARCH_LINK_FLAGS) $(ABI_FLAGS) -fuse-ld=bfd \ |
| -Wl,-T,$(LDSCRIPT) -Wl,--gc-sections |
| CFLAGS := $(ARCH_CFLAGS) -Wall -Werror -Os $(INCLUDES) -std=gnu99 \ |
| $(ABI_FLAGS) -ffunction-sections |
| |
| all: real-target |
| |
| endif |
| |
| |
| |
| # 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+= \ |
| $$(subst $(src)/,, \ |
| $$(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)),$$(subdirs-y))))) |
| |
| # For each path in $(subdirs) call includemakefiles |
| # Repeat until subdirs is empty |
| evaluate_subdirs= \ |
| $(eval cursubdirs:=$(subdirs)) \ |
| $(eval subdirs:=) \ |
| $(foreach dir,$(cursubdirs), \ |
| $(eval $(call includemakefiles,$(dir)/Makefile.inc))) \ |
| $(if $(subdirs),$(eval $(call evaluate_subdirs))) |
| |
| # collect all object files eligible for building |
| subdirs:=$(src) |
| $(eval $(call evaluate_subdirs)) |
| |
| # Eliminate duplicate mentions of source files in a class |
| $(foreach class,$(classes),$(eval $(class)-srcs:=$(sort $($(class)-srcs)))) |
| |
| src-to-obj=$(addsuffix .$(1).o, $(basename $(patsubst src/%, $(obj)/%, $($(1)-srcs)))) |
| $(foreach class,$(classes),$(eval $(class)-objs:=$(call src-to-obj,$(class)))) |
| |
| allsrcs:=$(foreach var, $(addsuffix -srcs,$(classes)), $($(var))) |
| allobjs:=$(foreach var, $(addsuffix -objs,$(classes)), $($(var))) |
| alldirs:=$(sort $(abspath $(dir $(allobjs)))) |
| |
| printall: |
| @$(foreach class,$(classes),echo $(class)-objs:=$($(class)-objs); ) |
| @echo alldirs:=$(alldirs) |
| @echo allsrcs=$(allsrcs) |
| @echo DEPENDENCIES=$(DEPENDENCIES) |
| @echo LIBGCC_FILE_NAME=$(LIBGCC_FILE_NAME) |
| @$(foreach class,$(special-classes),echo $(class):='$($(class))'; ) |
| |
| ifndef NOMKDIR |
| $(shell mkdir -p $(obj) $(objk)/lxdialog $(additional-dirs) $(alldirs)) |
| endif |
| |
| # macro to define template macros that are used by use_template macro |
| define create_cc_template |
| # $1 obj class |
| # $2 source suffix (c, S) |
| # $3 additional compiler flags |
| # $4 additional dependencies |
| ifn$(EMPTY)def $(1)-objs_$(2)_template |
| de$(EMPTY)fine $(1)-objs_$(2)_template |
| $(obj)/$$(1).$(1).o: src/$$(1).$(2) $(obj)/config.h $(4) |
| @printf " CC $$$$(subst $$$$(obj)/,,$$$$(@))\n" |
| $(Q)$(XCC) $(3) -MMD $$$$(CFLAGS) -c -o $$$$@ $$$$< |
| en$(EMPTY)def |
| end$(EMPTY)if |
| endef |
| |
| filetypes-of-class=$(subst .,,$(sort $(suffix $($(1)-srcs)))) |
| $(foreach class,$(classes), \ |
| $(foreach type,$(call filetypes-of-class,$(class)), \ |
| $(eval $(call create_cc_template,$(class),$(type),$($(class)-$(type)-ccopts),$($(class)-$(type)-deps))))) |
| |
| foreach-src=$(foreach file,$($(1)-srcs),$(eval $(call $(1)-objs_$(subst .,,$(suffix $(file)))_template,$(subst src/,,$(basename $(file)))))) |
| $(eval $(foreach class,$(classes),$(call foreach-src,$(class)))) |
| |
| # Kconfig options intended for the linker. |
| $(foreach option,$(link_config_options), \ |
| $(eval LINK_FLAGS += -Wl,--defsym=$(option)=$$(CONFIG_$(option)))) |
| |
| DEPENDENCIES = $(allobjs:.o=.d) |
| -include $(DEPENDENCIES) |
| |
| prepare: |
| $(Q)mkdir -p $(obj)/util/kconfig/lxdialog |
| |
| clean: |
| $(Q)rm -rf build/*.elf build/*.o |
| |
| distclean: clean |
| $(Q)rm -rf build |
| $(Q)rm -f .config .config.old ..config.tmp .kconfig.d .tmpconfig* |
| |
| include util/kconfig/Makefile |
| |
| .PHONY: $(PHONY) prepare clean distclean |
| |
