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Patrick Georgi0588d192009-08-12 15:00:51 +00001##
2## This file is part of the coreboot project.
3##
4## Copyright (C) 2008 Advanced Micro Devices, Inc.
5## Copyright (C) 2008 Uwe Hermann <uwe@hermann-uwe.de>
Stefan Reinauer8ed1b6d2010-01-19 21:13:44 +00006## Copyright (C) 2009-2010 coresystems GmbH
Patrick Georgi71b84802011-02-22 14:35:05 +00007## Copyright (C) 2011 secunet Security Networks AG
Patrick Georgi0588d192009-08-12 15:00:51 +00008##
Patrick Georgi3bda0442011-06-30 15:48:57 +02009## Redistribution and use in source and binary forms, with or without
10## modification, are permitted provided that the following conditions
11## are met:
12## 1. Redistributions of source code must retain the above copyright
13## notice, this list of conditions and the following disclaimer.
14## 2. Redistributions in binary form must reproduce the above copyright
15## notice, this list of conditions and the following disclaimer in the
16## documentation and/or other materials provided with the distribution.
17## 3. The name of the author may not be used to endorse or promote products
18## derived from this software without specific prior written permission.
Patrick Georgi0588d192009-08-12 15:00:51 +000019##
Patrick Georgi3bda0442011-06-30 15:48:57 +020020## THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21## ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22## IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23## ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24## FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25## DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26## OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27## HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28## LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29## OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30## SUCH DAMAGE.
Patrick Georgi0588d192009-08-12 15:00:51 +000031##
32
Patrick Georgi05560bf2014-07-19 10:55:30 +020033# in addition to the dependency below, create the file if it doesn't exist
34# to silence stupid warnings about a file that would be generated anyway.
35$(if $(wildcard .xcompile),,$(eval $(shell util/xcompile/xcompile $(XGCCPATH) > .xcompile)))
36
Patrick Georgi18ff4f12014-07-10 21:06:04 +020037.xcompile: util/xcompile/xcompile
38 A=`mktemp $@.XXXXXX`; $< $(XGCCPATH) > $$A && mv $$A $@ 2> /dev/null
39
Patrick Georgi0588d192009-08-12 15:00:51 +000040include .xcompile
Patrick Georgi23d89cc2010-03-16 01:17:19 +000041
Jonathan Kollasch7ff5b442010-09-28 21:11:48 +000042export top := $(CURDIR)
Patrick Georgi51e142f2010-03-27 17:18:39 +000043export src := src
Patrick Georgi0588d192009-08-12 15:00:51 +000044export srck := $(top)/util/kconfig
Patrick Georgi51e142f2010-03-27 17:18:39 +000045export obj ?= build
Patrick Georgia2acbc72010-04-16 22:48:57 +000046export objutil ?= $(obj)/util
47export objk := $(objutil)/kconfig
Patrick Georgi0588d192009-08-12 15:00:51 +000048
49
Patrick Georgi0588d192009-08-12 15:00:51 +000050export KCONFIG_AUTOHEADER := $(obj)/config.h
51export KCONFIG_AUTOCONFIG := $(obj)/auto.conf
Patrick Georgid5208402014-04-11 20:24:06 +020052export KCONFIG_DEPENDENCIES := $(obj)/auto.conf.cmd
53export KCONFIG_SPLITCONFIG := $(obj)/config
54export KCONFIG_TRISTATE := $(obj)/tristate.conf
55export KCONFIG_NEGATIVES := 1
Patrick Georgi0588d192009-08-12 15:00:51 +000056
Patrick Georgie38d0a62011-03-01 08:09:22 +000057# directory containing the toplevel Makefile.inc
58TOPLEVEL := .
59
Patrick Georgi0588d192009-08-12 15:00:51 +000060CONFIG_SHELL := sh
61KBUILD_DEFCONFIG := configs/defconfig
62UNAME_RELEASE := $(shell uname -r)
Patrick Georgi89ec3762010-12-08 19:58:30 +000063DOTCONFIG ?= .config
64KCONFIG_CONFIG = $(DOTCONFIG)
65export KCONFIG_CONFIG
66HAVE_DOTCONFIG := $(wildcard $(DOTCONFIG))
Patrick Georgi0588d192009-08-12 15:00:51 +000067MAKEFLAGS += -rR --no-print-directory
68
69# Make is silent per default, but 'make V=1' will show all compiler calls.
Patrick Georgi2b7418e2009-08-25 19:38:46 +000070Q:=@
Patrick Georgi0588d192009-08-12 15:00:51 +000071ifneq ($(V),1)
Patrick Georgi2b7418e2009-08-25 19:38:46 +000072ifneq ($(Q),)
73.SILENT:
74endif
Patrick Georgi0588d192009-08-12 15:00:51 +000075endif
76
Edward O'Callaghan16407ab2014-10-30 11:36:42 +110077HOSTCC := gcc
Patrick Georgi0588d192009-08-12 15:00:51 +000078HOSTCXX = g++
Patrick Georgib3a18ac2012-09-13 22:13:33 +020079HOSTCFLAGS := -g
80HOSTCXXFLAGS := -g
Patrick Georgi0588d192009-08-12 15:00:51 +000081
82DOXYGEN := doxygen
83DOXYGEN_OUTPUT_DIR := doxygen
84
Patrick Georgi71b84802011-02-22 14:35:05 +000085all: real-all
86
Patrick Georgie38d0a62011-03-01 08:09:22 +000087# This include must come _before_ the pattern rules below!
Patrick Georgi71b84802011-02-22 14:35:05 +000088# Order _does_ matter for pattern rules.
Patrick Georgi71b84802011-02-22 14:35:05 +000089include util/kconfig/Makefile
90
Patrick Georgicf036d12010-04-21 06:36:20 +000091# Three cases where we don't need fully populated $(obj) lists:
92# 1. when no .config exists
93# 2. when make config (in any flavour) is run
94# 3. when make distclean is run
95# Don't waste time on reading all Makefile.incs in these cases
Patrick Georgi0588d192009-08-12 15:00:51 +000096ifeq ($(strip $(HAVE_DOTCONFIG)),)
Patrick Georgicf036d12010-04-21 06:36:20 +000097NOCOMPILE:=1
98endif
99ifneq ($(MAKECMDGOALS),)
Patrick Georgi7711c0d2015-02-17 12:21:32 +0100100ifneq ($(filter %config %clean cross% lint% what-jenkins-does,$(MAKECMDGOALS)),)
Patrick Georgicf036d12010-04-21 06:36:20 +0000101NOCOMPILE:=1
102endif
Patrick Georgi02ae0bf2013-02-09 15:45:02 +0100103ifeq ($(MAKECMDGOALS), %clean)
Zheng Bao0fd93d62012-10-22 16:36:03 +0800104NOMKDIR:=1
105endif
Patrick Georgicf036d12010-04-21 06:36:20 +0000106endif
Patrick Georgi0588d192009-08-12 15:00:51 +0000107
Patrick Georgicf036d12010-04-21 06:36:20 +0000108ifeq ($(NOCOMPILE),1)
Patrick Georgie38d0a62011-03-01 08:09:22 +0000109include $(TOPLEVEL)/Makefile.inc
Patrick Georgi71b84802011-02-22 14:35:05 +0000110real-all: config
Patrick Georgi0588d192009-08-12 15:00:51 +0000111
112else
113
Patrick Georgi977b9852010-09-24 22:15:54 +0000114include $(HAVE_DOTCONFIG)
Patrick Georgi0588d192009-08-12 15:00:51 +0000115
Patrick Georgi23d89cc2010-03-16 01:17:19 +0000116ifeq ($(CONFIG_COMPILER_LLVM_CLANG),y)
Edward O'Callaghandd91c7f2014-06-28 03:02:52 +1000117# FIXME: armv7/aarch64 won't build right now
118# NOTE: clang puts compiler-rt under lib/linux/libclang_rt.builtins-i386.a
119# this means the triple is i386-linux-elf instead of i386-none-elf
120CFLAGS_x86_32 = -no-integrated-as -Qunused-arguments -target i386-linux-elf -m32
Edward O'Callaghan8916d0d2014-12-10 19:30:22 +1100121# Tone down some clang warnings
122CFLAGS_x86_32 += -Wno-unused-variable -Wno-unused-function -Wno-tautological-compare -Wno-shift-overflow
Patrick Georgicc84a002014-05-14 21:05:35 +0200123CC_x86_32:=clang
Edward O'Callaghan16407ab2014-10-30 11:36:42 +1100124HOSTCC := clang
Patrick Georgicc84a002014-05-14 21:05:35 +0200125
126ifneq ($(CONFIG_MMX),y)
127CFLAGS_x86_32 += -mno-mmx
128endif
129
130# FIXME: we end up with conflicting flags with this, not clear on this part.
131#ifneq ($(CONFIG_SSE),y)
132#CFLAGS_x86_32 += -mno-sse
133#endif
134
Gabe Black51edd542013-09-30 23:00:33 -0700135CFLAGS_arm = -no-integrated-as -Qunused-arguments -target arm-eabi -ccc-gcc-name $(CC_arm)
136CC_arm:=clang
Patrick Georgicc84a002014-05-14 21:05:35 +0200137
138CFLAGS_aarch64 = -no-integrated-as -Qunused-arguments -target aarch64-eabi -ccc-gcc-name $(CC_aarch64)
139CC_aarch64:=clang
Patrick Georgi23d89cc2010-03-16 01:17:19 +0000140endif
Patrick Georgi23d89cc2010-03-16 01:17:19 +0000141
Patrick Georgicc84a002014-05-14 21:05:35 +0200142include toolchain.inc
143
Patrick Georgia84e98b2010-03-16 19:01:32 +0000144strip_quotes = $(subst ",,$(subst \",,$(1)))
145
Patrick Georgi0588d192009-08-12 15:00:51 +0000146# The primary target needs to be here before we include the
147# other files
148
Patrick Georgi71b84802011-02-22 14:35:05 +0000149real-all: real-target
Patrick Georgi0588d192009-08-12 15:00:51 +0000150
Patrick Georgi51e142f2010-03-27 17:18:39 +0000151# must come rather early
152.SECONDEXPANSION:
153
Stefan Reinauer1425add2010-03-21 22:35:58 +0000154$(obj)/config.h:
155 $(MAKE) oldconfig
Patrick Georgi0588d192009-08-12 15:00:51 +0000156
Patrick Georgi58262652011-02-17 20:47:49 +0000157# Add a new class of source/object files to the build system
158add-class= \
159 $(eval $(1)-srcs:=) \
160 $(eval $(1)-objs:=) \
161 $(eval classes+=$(1))
Patrick Georgi8463dd92010-09-30 16:55:02 +0000162
Patrick Georgi58262652011-02-17 20:47:49 +0000163# Special classes are managed types with special behaviour
164# On parse time, for each entry in variable $(1)-y
165# a handler $(1)-handler is executed with the arguments:
166# * $(1): directory the parser is in
167# * $(2): current entry
168add-special-class= \
169 $(eval $(1):=) \
170 $(eval special-classes+=$(1))
171
Patrick Georgi47d68d82010-03-06 21:18:43 +0000172# Clean -y variables, include Makefile.inc
Patrick Georgi8463dd92010-09-30 16:55:02 +0000173# Add paths to files in X-y to X-srcs
Patrick Georgi47d68d82010-03-06 21:18:43 +0000174# Add subdirs-y to subdirs
175includemakefiles= \
Patrick Georgi58262652011-02-17 20:47:49 +0000176 $(foreach class,classes subdirs $(classes) $(special-classes), $(eval $(class)-y:=)) \
Patrick Georgi47d68d82010-03-06 21:18:43 +0000177 $(eval -include $(1)) \
Patrick Georgi58262652011-02-17 20:47:49 +0000178 $(foreach class,$(classes-y), $(call add-class,$(class))) \
179 $(foreach class,$(classes), \
180 $(eval $(class)-srcs+= \
Patrick Georgi51e142f2010-03-27 17:18:39 +0000181 $$(subst $(top)/,, \
Patrick Georgi29ddbb82011-05-20 23:31:41 +0000182 $$(abspath $$(subst $(dir $(1))/,/,$$(addprefix $(dir $(1)),$$($(class)-y))))))) \
Patrick Georgi58262652011-02-17 20:47:49 +0000183 $(foreach special,$(special-classes), \
184 $(foreach item,$($(special)-y), $(call $(special)-handler,$(dir $(1)),$(item)))) \
Jonathan Kollasch7ff5b442010-09-28 21:11:48 +0000185 $(eval subdirs+=$$(subst $(CURDIR)/,,$$(abspath $$(addprefix $(dir $(1)),$$(subdirs-y)))))
Patrick Georgi47d68d82010-03-06 21:18:43 +0000186
Patrick Georgi8463dd92010-09-30 16:55:02 +0000187# For each path in $(subdirs) call includemakefiles
Patrick Georgi47d68d82010-03-06 21:18:43 +0000188# Repeat until subdirs is empty
189evaluate_subdirs= \
190 $(eval cursubdirs:=$(subdirs)) \
191 $(eval subdirs:=) \
192 $(foreach dir,$(cursubdirs), \
Patrick Georgi58262652011-02-17 20:47:49 +0000193 $(eval $(call includemakefiles,$(dir)/Makefile.inc))) \
Patrick Georgi51e142f2010-03-27 17:18:39 +0000194 $(if $(subdirs),$(eval $(call evaluate_subdirs)))
Patrick Georgi0588d192009-08-12 15:00:51 +0000195
196# collect all object files eligible for building
Patrick Georgie38d0a62011-03-01 08:09:22 +0000197subdirs:=$(TOPLEVEL)
Patrick Georgi51e142f2010-03-27 17:18:39 +0000198$(eval $(call evaluate_subdirs))
Patrick Georgi70c85ea2013-02-16 01:06:57 +0100199ifeq ($(FAILBUILD),1)
200$(error cannot continue build)
201endif
Patrick Georgi0588d192009-08-12 15:00:51 +0000202
Patrick Georgi94a45862011-10-25 14:32:21 -0700203# Eliminate duplicate mentions of source files in a class
204$(foreach class,$(classes),$(eval $(class)-srcs:=$(sort $($(class)-srcs))))
205
Patrick Georgidb273062015-03-27 17:03:28 +0100206# Converts one or more source file paths to their corresponding build/ paths.
207# Only .c and .S get converted to .o, other files (like .ld) keep their name.
208# $1 stage name
209# $2 file path (list)
210src-to-obj=$(foreach file,$(2),$(basename $(patsubst src/%,$(obj)/%,$(file))).$(1)$(patsubst %.c,%.o,$(patsubst %.S,%.o,$(suffix $(file)))))
211
Patrick Georgi10f86b02015-03-27 16:56:23 +0100212$(foreach class,$(classes),$(eval $(class)-objs:=$(call src-to-obj,$(class),$($(class)-srcs))))
Patrick Georgid3428b02010-02-24 13:18:01 +0000213
Nico Huber963bed52013-05-15 11:47:51 +0200214# Save all objs before processing them (for dependency inclusion)
215originalobjs:=$(foreach var, $(addsuffix -objs,$(classes)), $($(var)))
216
Patrick Georgi79f90102012-11-25 14:31:08 +0100217# Call post-processors if they're defined
218$(foreach class,$(classes),\
219 $(if $(value $(class)-postprocess),$(eval $(call $(class)-postprocess,$($(class)-objs)))))
220
Patrick Georgi58262652011-02-17 20:47:49 +0000221allsrcs:=$(foreach var, $(addsuffix -srcs,$(classes)), $($(var)))
222allobjs:=$(foreach var, $(addsuffix -objs,$(classes)), $($(var)))
Patrick Georgi0588d192009-08-12 15:00:51 +0000223alldirs:=$(sort $(abspath $(dir $(allobjs))))
Patrick Georgi0588d192009-08-12 15:00:51 +0000224
Patrick Georgi patrick.georgic5f773d2010-03-16 12:01:13 +0000225# macro to define template macros that are used by use_template macro
226define create_cc_template
Patrick Georgi71b84802011-02-22 14:35:05 +0000227# $1 obj class
Patrick Georgi patrick.georgic5f773d2010-03-16 12:01:13 +0000228# $2 source suffix (c, S)
Marc Jonesa38ccfd2014-11-06 15:50:22 -0700229# $3 additional compiler flags
230# $4 additional dependencies
Patrick Georgib8cdd9b2011-02-17 20:48:45 +0000231ifn$(EMPTY)def $(1)-objs_$(2)_template
Patrick Georgi8463dd92010-09-30 16:55:02 +0000232de$(EMPTY)fine $(1)-objs_$(2)_template
Patrick Georgid69839b2015-04-03 10:32:17 +0200233$$(call src-to-obj,$1,$$(1).$2): $$(1).$2 $(obj)/config.h $(4)
Patrick Georgi1cd76e72010-04-19 20:39:22 +0000234 @printf " CC $$$$(subst $$$$(obj)/,,$$$$(@))\n"
Patrick Georgi75fcaf92015-04-03 10:16:12 +0200235 $(CC_$(1)) -MMD $$$$(CPPFLAGS_$(1)) $$$$(CFLAGS_$(1)) -MT $$$$(@) $(3) -c -o $$$$@ $$$$<
Patrick Georgi patrick.georgic5f773d2010-03-16 12:01:13 +0000236en$(EMPTY)def
Patrick Georgib8cdd9b2011-02-17 20:48:45 +0000237end$(EMPTY)if
Patrick Georgi0588d192009-08-12 15:00:51 +0000238endef
239
Patrick Georgib8cdd9b2011-02-17 20:48:45 +0000240filetypes-of-class=$(subst .,,$(sort $(suffix $($(1)-srcs))))
241$(foreach class,$(classes), \
242 $(foreach type,$(call filetypes-of-class,$(class)), \
Patrick Georgi2459aee2015-03-27 15:27:21 +0100243 $(eval $(class)-$(type)-ccopts += $(generic-$(type)-ccopts) $($(class)-generic-ccopts)) \
Patrick Georgi416ab382015-04-03 10:19:38 +0200244 $(if $(generic-objs_$(type)_template_gen),$(eval $(call generic-objs_$(type)_template_gen,$(class))),\
245 $(eval $(call create_cc_template,$(class),$(type),$($(class)-$(type)-ccopts),$($(class)-$(type)-deps))))))
Patrick Georgi0588d192009-08-12 15:00:51 +0000246
Patrick Georgid69839b2015-04-03 10:32:17 +0200247foreach-src=$(foreach file,$($(1)-srcs),$(eval $(call $(1)-objs_$(subst .,,$(suffix $(file)))_template,$(basename $(file)))))
Patrick Georgi58262652011-02-17 20:47:49 +0000248$(eval $(foreach class,$(classes),$(call foreach-src,$(class))))
Patrick Georgi0588d192009-08-12 15:00:51 +0000249
Patrick Georgidb273062015-03-27 17:03:28 +0100250DEPENDENCIES = $(addsuffix .d,$(basename $(allobjs)))
Stefan Reinauer6bee9512010-03-24 15:51:48 +0000251-include $(DEPENDENCIES)
252
Patrick Georgi0588d192009-08-12 15:00:51 +0000253printall:
Patrick Georgi71b84802011-02-22 14:35:05 +0000254 @$(foreach class,$(classes),echo $(class)-objs:=$($(class)-objs); )
Patrick Georgi0588d192009-08-12 15:00:51 +0000255 @echo alldirs:=$(alldirs)
Patrick Georgi8463dd92010-09-30 16:55:02 +0000256 @echo allsrcs=$(allsrcs)
Stefan Reinauer6bee9512010-03-24 15:51:48 +0000257 @echo DEPENDENCIES=$(DEPENDENCIES)
Patrick Georgi71b84802011-02-22 14:35:05 +0000258 @$(foreach class,$(special-classes),echo $(class):='$($(class))'; )
Patrick Georgi0588d192009-08-12 15:00:51 +0000259
260endif
261
Patrick Georgi40ad8422011-05-21 22:18:59 +0000262ifndef NOMKDIR
Patrick Georgid5208402014-04-11 20:24:06 +0200263$(shell mkdir -p $(KCONFIG_SPLITCONFIG) $(objutil)/kconfig/lxdialog $(additional-dirs) $(alldirs))
Patrick Georgi40ad8422011-05-21 22:18:59 +0000264endif
Patrick Georgi0588d192009-08-12 15:00:51 +0000265
Warren Turkala9fc3302010-09-03 08:57:32 +0000266cscope:
267 cscope -bR
268
Patrick Georgi0588d192009-08-12 15:00:51 +0000269doxy: doxygen
270doxygen:
Stefan Reinauer1bbad5c2010-02-10 15:36:53 +0000271 $(DOXYGEN) documentation/Doxyfile.coreboot
Patrick Georgi0588d192009-08-12 15:00:51 +0000272
Martin Rothd7689e42014-12-29 14:56:19 -0700273doxygen_simple:
274 $(DOXYGEN) documentation/Doxyfile.coreboot_simple
275
Patrick Georgi0588d192009-08-12 15:00:51 +0000276doxyclean: doxygen-clean
277doxygen-clean:
Patrick Georgi2b7418e2009-08-25 19:38:46 +0000278 rm -rf $(DOXYGEN_OUTPUT_DIR)
Patrick Georgi0588d192009-08-12 15:00:51 +0000279
Patrick Georgi71b84802011-02-22 14:35:05 +0000280clean-for-update: doxygen-clean clean-for-update-target
Patrick Georgi02ae0bf2013-02-09 15:45:02 +0100281 rm -rf $(obj) .xcompile
Patrick Georgi0588d192009-08-12 15:00:51 +0000282
Patrick Georgi71b84802011-02-22 14:35:05 +0000283clean: clean-for-update clean-target
284 rm -f .ccwrap
Warren Turkal0e8f2042010-09-27 21:14:19 +0000285
Warren Turkala9fc3302010-09-03 08:57:32 +0000286clean-cscope:
287 rm -f cscope.out
288
Patrick Georgi02ae0bf2013-02-09 15:45:02 +0100289distclean: clean
Patrick Georgicf036d12010-04-21 06:36:20 +0000290 rm -f .config .config.old ..config.tmp .kconfig.d .tmpconfig* .ccwrap .xcompile
Patrick Georgi0588d192009-08-12 15:00:51 +0000291
Martin Rothd7689e42014-12-29 14:56:19 -0700292.PHONY: $(PHONY) clean clean-for-update clean-cscope cscope distclean doxygen doxy doxygen_simple