Makefile

   1 ##
   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>
   6 ## Copyright (C) 2009-2010 coresystems GmbH
   7 ## Copyright (C) 2011 secunet Security Networks AG
   8 ##
   9 ## 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.
  19 ##
  20 ## 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.
  31 ##
  32
  33 # 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 || rm -f .xcompile)))
  36
  37 .xcompile: util/xcompile/xcompile
  38         rm -f $@
  39         $< $(XGCCPATH) > $@.tmp
  40         \mv -f $@.tmp $@ 2> /dev/null
  41         rm -f $@.tmp
  42
  43 export top := $(CURDIR)
  44 export src := src
  45 export srck := $(top)/util/kconfig
  46 obj ?= build
  47 override obj := $(subst $(top)/,,$(abspath $(obj)))
  48 export obj
  49 export objutil ?= $(obj)/util
  50 export objk := $(objutil)/kconfig
  51 absobj := $(abspath $(obj))
  52
  53
  54 export KCONFIG_AUTOHEADER := $(obj)/config.h
  55 export KCONFIG_AUTOCONFIG := $(obj)/auto.conf
  56 export KCONFIG_DEPENDENCIES := $(obj)/auto.conf.cmd
  57 export KCONFIG_SPLITCONFIG := $(obj)/config
  58 export KCONFIG_TRISTATE := $(obj)/tristate.conf
  59 export KCONFIG_NEGATIVES := 1
  60 export KCONFIG_STRICT := 1
  61
  62 # directory containing the toplevel Makefile.inc
  63 TOPLEVEL := .
  64
  65 CONFIG_SHELL := sh
  66 KBUILD_DEFCONFIG := configs/defconfig
  67 UNAME_RELEASE := $(shell uname -r)
  68 DOTCONFIG ?= .config
  69 KCONFIG_CONFIG = $(DOTCONFIG)
  70 export KCONFIG_CONFIG
  71 HAVE_DOTCONFIG := $(wildcard $(DOTCONFIG))
  72 MAKEFLAGS += -rR --no-print-directory
  73
  74 # Make is silent per default, but 'make V=1' will show all compiler calls.
  75 Q:=@
  76 ifneq ($(V),1)
  77 ifneq ($(Q),)
  78 .SILENT:
  79 endif
  80 endif
  81
  82 # Disable implicit/built-in rules to make Makefile errors fail fast.
  83 .SUFFIXES:
  84
  85 HOSTCC := $(if $(shell type gcc 2>/dev/null),gcc,cc)
  86 HOSTCXX = g++
  87 HOSTCFLAGS := -g
  88 HOSTCXXFLAGS := -g
  89
  90 PREPROCESS_ONLY := -E -P -x assembler-with-cpp -undef -I .
  91
  92 DOXYGEN := doxygen
  93 DOXYGEN_OUTPUT_DIR := doxygen
  94
  95 all: real-all
  96
  97 help_coreboot help::
  98         @echo  '*** coreboot platform targets ***'
  99         @echo  '  Use "make [target] V=1" for extra build debug information'
 100         @echo  '  all                   - Build coreboot'
 101         @echo  '  clean                 - Remove coreboot build artifacts'
 102         @echo  '  distclean             - Remove build artifacts and config files'
 103         @echo  '  doxygen               - Build doxygen documentation for coreboot'
 104         @echo  '  what-jenkins-does     - Run platform build tests (Use CPUS=# for more cores)'
 105         @echo  '  printall              - print makefile info for debugging'
 106         @echo  '  lint / lint-stable    - run coreboot lint tools (all / minimal)'
 107         @echo  '  gitconfig             - set up git to submit patches to coreboot'
 108         @echo  '  ctags / ctags-project - make ctags file for all of coreboot or current board'
 109         @echo  '  cscope / cscope-project - make cscope.out file for coreboot or current board'
 110         @echo
 111
 112 # This include must come _before_ the pattern rules below!
 113 # Order _does_ matter for pattern rules.
 114 include $(srck)/Makefile
 115
 116 # Three cases where we don't need fully populated $(obj) lists:
 117 # 1. when no .config exists
 118 # 2. when make config (in any flavour) is run
 119 # 3. when make distclean is run
 120 # Don't waste time on reading all Makefile.incs in these cases
 121 ifeq ($(strip $(HAVE_DOTCONFIG)),)
 122 NOCOMPILE:=1
 123 endif
 124 ifneq ($(MAKECMDGOALS),)
 125 ifneq ($(filter %config %clean cross% clang iasl lint% help% what-jenkins-does,$(MAKECMDGOALS)),)
 126 NOCOMPILE:=1
 127 endif
 128 ifeq ($(MAKECMDGOALS), %clean)
 129 NOMKDIR:=1
 130 endif
 131 endif
 132
 133 ifeq ($(NOCOMPILE),1)
 134 include $(TOPLEVEL)/Makefile.inc
 135 include $(TOPLEVEL)/payloads/Makefile.inc
 136 real-all: config
 137
 138 else
 139
 140 include $(HAVE_DOTCONFIG)
 141
 142 -include .xcompile
 143
 144 ifneq ($(XCOMPILE_COMPLETE),1)
 145 $(shell rm -f .xcompile)
 146 $(error .xcompile deleted because it's invalid. \
 147         Restarting the build should fix that, or explain the problem)
 148 endif
 149
 150 ifneq ($(CONFIG_MMX),y)
 151 CFLAGS_x86_32 += -mno-mmx
 152 endif
 153
 154 include toolchain.inc
 155
 156 strip_quotes = $(strip $(subst ",,$(subst \",,$(1))))
 157 # fix makefile syntax highlighting after strip macro \" "))
 158
 159 # The primary target needs to be here before we include the
 160 # other files
 161
 162 real-all: real-target
 163
 164 # must come rather early
 165 .SECONDEXPANSION:
 166
 167 $(KCONFIG_AUTOHEADER): $(KCONFIG_CONFIG)
 168         $(MAKE) oldconfig
 169
 170 # Add a new class of source/object files to the build system
 171 add-class= \
 172         $(eval $(1)-srcs:=) \
 173         $(eval $(1)-objs:=) \
 174         $(eval classes+=$(1))
 175
 176 # Special classes are managed types with special behaviour
 177 # On parse time, for each entry in variable $(1)-y
 178 # a handler $(1)-handler is executed with the arguments:
 179 # * $(1): directory the parser is in
 180 # * $(2): current entry
 181 add-special-class= \
 182         $(eval $(1):=) \
 183         $(eval special-classes+=$(1))
 184
 185 # Converts one or more source file paths to their corresponding build/ paths.
 186 # Only .c and .S get converted to .o, other files (like .ld) keep their name.
 187 # $1 stage name
 188 # $2 file path (list)
 189 src-to-obj=\
 190         $(patsubst $(obj)/%,$(obj)/$(1)/%,\
 191         $(patsubst $(obj)/$(1)/%,$(obj)/%,\
 192         $(patsubst src/%,$(obj)/%,\
 193         $(patsubst %.c,%.o,\
 194         $(patsubst %.S,%.o,\
 195         $(subst .$(1),,$(2)))))))
 196
 197 # Clean -y variables, include Makefile.inc
 198 # Add paths to files in X-y to X-srcs
 199 # Add subdirs-y to subdirs
 200 includemakefiles= \
 201         $(foreach class,classes subdirs $(classes) $(special-classes), $(eval $(class)-y:=)) \
 202         $(eval -include $(1)) \
 203         $(foreach class,$(classes-y), $(call add-class,$(class))) \
 204         $(foreach class,$(classes), \
 205                 $(eval $(class)-srcs+= \
 206                         $$(subst $(absobj)/,$(obj)/, \
 207                         $$(subst $(top)/,, \
 208                         $$(abspath $$(subst $(dir $(1))/,/,$$(addprefix $(dir $(1)),$$($(class)-y)))))))) \
 209         $(foreach special,$(special-classes), \
 210                 $(foreach item,$($(special)-y), $(call $(special)-handler,$(dir $(1)),$(item)))) \
 211         $(eval subdirs+=$$(subst $(CURDIR)/,,$$(abspath $$(addprefix $(dir $(1)),$$(subdirs-y)))))
 212
 213 # For each path in $(subdirs) call includemakefiles
 214 # Repeat until subdirs is empty
 215 evaluate_subdirs= \
 216         $(eval cursubdirs:=$(subdirs)) \
 217         $(eval subdirs:=) \
 218         $(foreach dir,$(cursubdirs), \
 219                 $(eval $(call includemakefiles,$(dir)/Makefile.inc))) \
 220         $(if $(subdirs),$(eval $(call evaluate_subdirs)))
 221
 222 # collect all object files eligible for building
 223 subdirs:=$(TOPLEVEL)
 224 $(eval $(call evaluate_subdirs))
 225 ifeq ($(FAILBUILD),1)
 226 $(error cannot continue build)
 227 endif
 228
 229 # Eliminate duplicate mentions of source files in a class
 230 $(foreach class,$(classes),$(eval $(class)-srcs:=$(sort $($(class)-srcs))))
 231
 232 $(foreach class,$(classes),$(eval $(class)-objs:=$(call src-to-obj,$(class),$($(class)-srcs))))
 233
 234 # Save all objs before processing them (for dependency inclusion)
 235 originalobjs:=$(foreach var, $(addsuffix -objs,$(classes)), $($(var)))
 236
 237 # Call post-processors if they're defined
 238 $(foreach class,$(classes),\
 239         $(if $(value $(class)-postprocess),$(eval $(call $(class)-postprocess,$($(class)-objs)))))
 240
 241 allsrcs:=$(foreach var, $(addsuffix -srcs,$(classes)), $($(var)))
 242 allobjs:=$(foreach var, $(addsuffix -objs,$(classes)), $($(var)))
 243 alldirs:=$(sort $(abspath $(dir $(allobjs))))
 244
 245 # macro to define template macros that are used by use_template macro
 246 define create_cc_template
 247 # $1 obj class
 248 # $2 source suffix (c, S, ld, ...)
 249 # $3 additional compiler flags
 250 # $4 additional dependencies
 251 ifn$(EMPTY)def $(1)-objs_$(2)_template
 252 de$(EMPTY)fine $(1)-objs_$(2)_template
 253 $$(call src-to-obj,$1,$$(1).$2): $$(1).$2 $(KCONFIG_AUTOHEADER) $(4)
 254         @printf "    CC         $$$$(subst $$$$(obj)/,,$$$$(@))\n"
 255         $(CC_$(1)) -MMD $$$$(CPPFLAGS_$(1)) $$$$(CFLAGS_$(1)) -MT $$$$(@) $(3) -c -o $$$$@ $$$$<
 256 en$(EMPTY)def
 257 end$(EMPTY)if
 258 endef
 259
 260 filetypes-of-class=$(subst .,,$(sort $(suffix $($(1)-srcs))))
 261 $(foreach class,$(classes), \
 262         $(foreach type,$(call filetypes-of-class,$(class)), \
 263                 $(eval $(class)-$(type)-ccopts += $(generic-$(type)-ccopts) $($(class)-generic-ccopts)) \
 264                 $(if $(generic-objs_$(type)_template_gen),$(eval $(call generic-objs_$(type)_template_gen,$(class))),\
 265                 $(eval $(call create_cc_template,$(class),$(type),$($(class)-$(type)-ccopts),$($(class)-$(type)-deps))))))
 266
 267 foreach-src=$(foreach file,$($(1)-srcs),$(eval $(call $(1)-objs_$(subst .,,$(suffix $(file)))_template,$(basename $(file)))))
 268 $(eval $(foreach class,$(classes),$(call foreach-src,$(class))))
 269
 270 DEPENDENCIES += $(addsuffix .d,$(basename $(allobjs)))
 271 -include $(DEPENDENCIES)
 272
 273 printall:
 274         @$(foreach class,$(classes),echo $(class)-objs:=$($(class)-objs); )
 275         @echo alldirs:=$(alldirs)
 276         @echo allsrcs=$(allsrcs)
 277         @echo DEPENDENCIES=$(DEPENDENCIES)
 278         @$(foreach class,$(special-classes),echo $(class):='$($(class))'; )
 279
 280 endif
 281
 282 ifndef NOMKDIR
 283 $(shell mkdir -p $(KCONFIG_SPLITCONFIG) $(objk)/lxdialog $(additional-dirs) $(alldirs))
 284 endif
 285
 286 $(obj)/project_filelist.txt: all
 287         find $(obj) -name "*.d" -exec cat {} \; | \
 288           sed 's/[:\\]/ /g' | sed 's/ /\n/g' | sort | uniq | \
 289           grep -v '\.o$$' > $(obj)/project_filelist.txt
 290
 291 #works with either exuberant ctags or ctags.emacs
 292 ctags-project: clean-ctags $(obj)/project_filelist.txt
 293         cat $(obj)/project_filelist.txt | \
 294           xargs ctags -o tags
 295
 296 cscope-project: clean-cscope $(obj)/project_filelist.txt
 297         cat $(obj)/project_filelist.txt | xargs cscope -b
 298
 299 cscope:
 300         cscope -bR
 301
 302 doxy: doxygen
 303 doxygen:
 304         $(DOXYGEN) Documentation/Doxyfile.coreboot
 305
 306 doxygen_simple:
 307         $(DOXYGEN) Documentation/Doxyfile.coreboot_simple
 308
 309 doxyclean: doxygen-clean
 310 doxygen-clean:
 311         rm -rf $(DOXYGEN_OUTPUT_DIR)
 312
 313 clean-for-update: doxygen-clean clean-for-update-target
 314         rm -rf $(obj) .xcompile
 315
 316 clean: clean-for-update clean-target
 317         rm -f .ccwrap
 318
 319 clean-cscope:
 320         rm -f cscope.out
 321
 322 clean-ctags:
 323         rm -f tags
 324
 325 distclean: clean clean-ctags clean-cscope distclean-payloads
 326         rm -f .config .config.old ..config.tmp .kconfig.d .tmpconfig* .ccwrap .xcompile
 327
 328 .PHONY: $(PHONY) clean clean-for-update clean-cscope cscope distclean doxygen doxy doxygen_simple
 329 .PHONY: ctags-project cscope-project clean-ctags