## ## This file is part of the libpayload 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. ## ifeq ($(INNER_SCANBUILD),y) CC_real:=$(CC) endif export top := $(CURDIR) export src := src export srck := $(abspath $(top)/../../util/kconfig) export obj ?= build export objutil ?= $(obj)/util export objk := $(objutil)/lp_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 export Kconfig := Kconfig export CONFIG_ := CONFIG_LP_ # directory containing the toplevel Makefile.inc TOPLEVEL := . CONFIG_LP_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 CPP:= $(CC) -x assembler-with-cpp -DASSEMBLY -E HOSTCC = gcc HOSTCXX = g++ HOSTCFLAGS := -I$(srck) -I$(objk) -g HOSTCXXFLAGS := -I$(srck) -I$(objk) DOXYGEN := doxygen DOXYGEN_OUTPUT_DIR := doxygen all: real-all # 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 $(top)/../../util/xcompile/xcompile $(XGCCPATH) > .xcompile))) .xcompile: $(top)/../../util/xcompile/xcompile $< $(XGCCPATH) > $@.tmp \mv -f $@.tmp $@ 2> /dev/null ifeq ($(INNER_SCANBUILD),y) CC:=$(CC_real) HOSTCC:=$(CC_real) --hostcc HOSTCXX:=$(CC_real) --hostcxx endif # This include must come _before_ the pattern rules below! # Order _does_ matter for pattern rules. include $(srck)/Makefile include $(HAVE_DOTCONFIG) include .xcompile ARCHDIR-$(CONFIG_LP_ARCH_ARM) := arm ARCHDIR-$(CONFIG_LP_ARCH_ARM64) := arm64 ARCHDIR-$(CONFIG_LP_ARCH_MIPS) := mips ARCHDIR-$(CONFIG_LP_ARCH_X86) := x86 ARCH-y := $(ARCHDIR-y) # If architecture folder name is different from xcompile architecture name, # override here. ARCH-$(CONFIG_LP_ARCH_ARM) := arm ARCH-$(CONFIG_LP_ARCH_ARM64) := arm64 ARCH-$(CONFIG_LP_ARCH_X86) := x86_32 ARCH-$(CONFIG_LP_ARCH_MIPS) := mips CC := $(CC_$(ARCH-y)) AS := $(AS_$(ARCH-y)) LD := $(LD_$(ARCH-y)) NM := $(NM_$(ARCH-y)) OBJCOPY := $(OBJCOPY_$(ARCH-y)) OBJDUMP := $(OBJDUMP_$(ARCH-y)) READELF := $(READELF_$(ARCH-y)) STRIP := $(STRIP_$(ARCH-y)) AR := $(AR_$(ARCH-y)) CFLAGS += $(CFLAGS_$(ARCH-y)) # 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 ($(filter %config distclean,$(MAKECMDGOALS)),) NOCOMPILE:=1 endif endif ifeq ($(NOCOMPILE),1) include $(TOPLEVEL)/Makefile.inc real-all: config else ifneq ($(INNER_SCANBUILD),y) ifeq ($(CONFIG_LP_COMPILER_LLVM_CLANG),y) CC:=clang -m32 HOSTCC:=clang endif endif ifeq ($(CONFIG_LP_CCACHE),y) CCACHE:=$(word 1,$(wildcard $(addsuffix /ccache,$(subst :, ,$(PATH))))) ifeq ($(CCACHE),) $(error ccache selected, but not found in PATH) endif CCACHE:=CCACHE_COMPILERCHECK=content CCACHE_BASEDIR=$(top) $(CCACHE) CC := $(CCACHE) $(CC) HOSTCC := $(CCACHE) $(HOSTCC) HOSTCXX := $(CCACHE) $(HOSTCXX) ROMCC := $(CCACHE) $(ROMCC) endif strip_quotes = $(subst ",,$(subst \",,$(1))) # The primary target needs to be here before we include the # other files ifeq ($(INNER_SCANBUILD),y) CONFIG_LP_SCANBUILD_ENABLE:= endif ifeq ($(CONFIG_LP_SCANBUILD_ENABLE),y) ifneq ($(CONFIG_LP_SCANBUILD_REPORT_LOCATION),) CONFIG_LP_SCANBUILD_REPORT_LOCATION:=-o $(CONFIG_LP_SCANBUILD_REPORT_LOCATION) endif real-all: echo '#!/bin/sh' > .ccwrap echo 'CC="$(CC)"' >> .ccwrap echo 'if [ "$$1" = "--hostcc" ]; then shift; CC="$(HOSTCC)"; fi' >> .ccwrap echo 'if [ "$$1" = "--hostcxx" ]; then shift; CC="$(HOSTCXX)"; fi' >> .ccwrap echo 'eval $$CC $$*' >> .ccwrap chmod +x .ccwrap scan-build $(CONFIG_LP_SCANBUILD_REPORT_LOCATION) -analyze-headers --use-cc=$(top)/.ccwrap --use-c++=$(top)/.ccwrap $(MAKE) INNER_SCANBUILD=y else real-all: real-target endif # must come rather early .SECONDEXPANSION: $(KCONFIG_AUTOHEADER): $(KCONFIG_CONFIG) $(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 $$(addprefix $(dir $(1)),$$($(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 $(call evaluate_subdirs)) src-to-obj=$(addsuffix .$(1).o, $(basename $(addprefix $(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)))) # 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)/$$(1).$(1).o: $$(1).$(2) $(obj)/libpayload-config.h $(4) @printf " CC $$$$(subst $$$$(obj)/,,$$$$(@))\n" $(CC) $(3) -MMD $$$$(CFLAGS) -c -o $$$$@ $$$$< 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 $(file)))_template,$(basename $(file))))) $(eval $(foreach class,$(classes),$(call foreach-src,$(class)))) DEPENDENCIES = $(allobjs:.o=.d) -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 $(shell mkdir -p $(KCONFIG_SPLITCONFIG) $(obj) $(objk)/lxdialog $(additional-dirs) $(alldirs)) cscope: cscope -bR doxy: doxygen doxygen: $(DOXYGEN) Doxyfile doxyclean: doxygen-clean doxygen-clean: rm -rf $(DOXYGEN_OUTPUT_DIR) clean-for-update: doxygen-clean clean-for-update-target rm -f $(allobjs) .xcompile rm -f $(DEPENDENCIES) rmdir -p $(alldirs) 2>/dev/null >/dev/null || true clean: clean-for-update clean-target rm -f .ccwrap clean-cscope: rm -f cscope.out distclean: clean-cscope rm -rf $(obj) rm -f .config .config.old ..config.tmp .kconfig.d .tmpconfig* .ccwrap .xcompile .PHONY: $(PHONY) clean clean-cscope cscope distclean doxygen doxy