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 top := $(CURDIR)
  34 src := src
  35 srck := $(top)/util/kconfig
  36 obj ?= build
  37 override obj := $(subst $(top)/,,$(abspath $(obj)))
  38 objutil ?= $(obj)/util
  39 objk := $(objutil)/kconfig
  40 absobj := $(abspath $(obj))
  41
  42 COREBOOT_EXPORTS := COREBOOT_EXPORTS
  43 COREBOOT_EXPORTS += top src srck obj objutil objk
  44
  45 DOTCONFIG ?= $(top)/.config
  46 KCONFIG_CONFIG = $(DOTCONFIG)
  47 KCONFIG_AUTOHEADER := $(obj)/config.h
  48 KCONFIG_AUTOCONFIG := $(obj)/auto.conf
  49 KCONFIG_DEPENDENCIES := $(obj)/auto.conf.cmd
  50 KCONFIG_SPLITCONFIG := $(obj)/config
  51 KCONFIG_TRISTATE := $(obj)/tristate.conf
  52 KCONFIG_NEGATIVES := 1
  53 KCONFIG_STRICT := 1
  54
  55 COREBOOT_EXPORTS += KCONFIG_CONFIG KCONFIG_AUTOHEADER KCONFIG_AUTOCONFIG
  56 COREBOOT_EXPORTS += KCONFIG_DEPENDENCIES KCONFIG_SPLITCONFIG KCONFIG_TRISTATE
  57 COREBOOT_EXPORTS += KCONFIG_NEGATIVES KCONFIG_STRICT
  58
  59 # directory containing the toplevel Makefile.inc
  60 TOPLEVEL := .
  61
  62 CONFIG_SHELL := sh
  63 KBUILD_DEFCONFIG := configs/defconfig
  64 UNAME_RELEASE := $(shell uname -r)
  65 HAVE_DOTCONFIG := $(wildcard $(DOTCONFIG))
  66 MAKEFLAGS += -rR --no-print-directory
  67
  68 # Make is silent per default, but 'make V=1' will show all compiler calls.
  69 Q:=@
  70 ifneq ($(V),1)
  71 ifneq ($(Q),)
  72 .SILENT:
  73 endif
  74 endif
  75
  76 # Disable implicit/built-in rules to make Makefile errors fail fast.
  77 .SUFFIXES:
  78
  79 HOSTCC := $(if $(shell type gcc 2>/dev/null),gcc,cc)
  80 HOSTCXX = g++
  81 HOSTCFLAGS := -g
  82 HOSTCXXFLAGS := -g
  83
  84 PREPROCESS_ONLY := -E -P -x assembler-with-cpp -undef -I .
  85
  86 DOXYGEN := doxygen
  87 DOXYGEN_OUTPUT_DIR := doxygen
  88
  89 export $(COREBOOT_EXPORTS)
  90
  91 all: real-all
  92
  93 help_coreboot help::
  94         @echo  '*** coreboot platform targets ***'
  95         @echo  '  Use "make [target] V=1" for extra build debug information'
  96         @echo  '  all                   - Build coreboot'
  97         @echo  '  clean                 - Remove coreboot build artifacts'
  98         @echo  '  distclean             - Remove build artifacts and config files'
  99         @echo  '  doxygen               - Build doxygen documentation for coreboot'
 100         @echo  '  doxyplatform          - Build doxygen documentation for the current platform'
 101         @echo  '  filelist              - Show files used in current build'
 102         @echo  '  printall              - print makefile info for debugging'
 103         @echo  '  gitconfig             - set up git to submit patches to coreboot'
 104         @echo  '  ctags / ctags-project - make ctags file for all of coreboot or current board'
 105         @echo  '  cscope / cscope-project - make cscope.out file for coreboot or current board'
 106         @echo
 107
 108 # This include must come _before_ the pattern rules below!
 109 # Order _does_ matter for pattern rules.
 110 include $(srck)/Makefile
 111
 112 # Three cases where we don't need fully populated $(obj) lists:
 113 # 1. when no .config exists
 114 # 2. when make config (in any flavour) is run
 115 # 3. when make distclean is run
 116 # Don't waste time on reading all Makefile.incs in these cases
 117 ifeq ($(strip $(HAVE_DOTCONFIG)),)
 118 NOCOMPILE:=1
 119 endif
 120 ifneq ($(MAKECMDGOALS),)
 121 ifneq ($(filter %config %clean cross% clang iasl gnumake lint% help% what-jenkins-does,$(MAKECMDGOALS)),)
 122 NOCOMPILE:=1
 123 endif
 124 ifeq ($(MAKECMDGOALS), %clean)
 125 NOMKDIR:=1
 126 endif
 127 endif
 128
 129 ifeq ($(NOCOMPILE),1)
 130 include $(TOPLEVEL)/Makefile.inc
 131 include $(TOPLEVEL)/payloads/Makefile.inc
 132 include $(TOPLEVEL)/util/testing/Makefile.inc
 133 -include $(TOPLEVEL)/site-local/Makefile.inc
 134 real-all:
 135         @echo "Error: Expected config file ($(DOTCONFIG)) not present." >&2
 136         @echo "Please specify a config file or run 'make menuconfig' to" >&2
 137         @echo "generate a new config file." >&2
 138         @exit 1
 139 else
 140
 141 include $(DOTCONFIG)
 142
 143 # in addition to the dependency below, create the file if it doesn't exist
 144 # to silence stupid warnings about a file that would be generated anyway.
 145 $(if $(wildcard .xcompile)$(NOCOMPILE),,$(eval $(shell util/xcompile/xcompile $(XGCCPATH) > .xcompile || rm -f .xcompile)))
 146
 147 .xcompile: util/xcompile/xcompile
 148         rm -f $@
 149         $< $(XGCCPATH) > $@.tmp
 150         \mv -f $@.tmp $@ 2> /dev/null
 151         rm -f $@.tmp
 152
 153 -include .xcompile
 154
 155 ifneq ($(XCOMPILE_COMPLETE),1)
 156 $(shell rm -f .xcompile)
 157 $(error .xcompile deleted because it's invalid. \
 158         Restarting the build should fix that, or explain the problem)
 159 endif
 160
 161 ifneq ($(CONFIG_MMX),y)
 162 CFLAGS_x86_32 += -mno-mmx
 163 endif
 164
 165 include toolchain.inc
 166
 167 strip_quotes = $(strip $(subst ",,$(subst \",,$(1))))
 168 # fix makefile syntax highlighting after strip macro \" "))
 169
 170 # The primary target needs to be here before we include the
 171 # other files
 172
 173 real-all: real-target
 174
 175 # must come rather early
 176 .SECONDEXPANSION:
 177
 178 $(KCONFIG_AUTOHEADER): $(KCONFIG_CONFIG)
 179         +$(MAKE) oldconfig
 180
 181 # Add a new class of source/object files to the build system
 182 add-class= \
 183         $(eval $(1)-srcs:=) \
 184         $(eval $(1)-objs:=) \
 185         $(eval classes+=$(1))
 186
 187 # Special classes are managed types with special behaviour
 188 # On parse time, for each entry in variable $(1)-y
 189 # a handler $(1)-handler is executed with the arguments:
 190 # * $(1): directory the parser is in
 191 # * $(2): current entry
 192 add-special-class= \
 193         $(eval $(1):=) \
 194         $(eval special-classes+=$(1))
 195
 196 # Converts one or more source file paths to their corresponding build/ paths.
 197 # Only .ads, adb, .c and .S get converted to .o, other files (like .ld) keep
 198 # their name.
 199 # $1 stage name
 200 # $2 file path (list)
 201 src-to-obj=\
 202         $(patsubst $(obj)/%,$(obj)/$(1)/%,\
 203         $(patsubst $(obj)/$(1)/%,$(obj)/%,\
 204         $(patsubst 3rdparty/%,$(obj)/%,\
 205         $(patsubst src/%,$(obj)/%,\
 206         $(patsubst %.ads,%.o,\
 207         $(patsubst %.adb,%.o,\
 208         $(patsubst %.c,%.o,\
 209         $(patsubst %.S,%.o,\
 210         $(subst .$(1),,$(2))))))))))
 211
 212 # Converts one or more source file paths to the corresponding build/ paths
 213 # of their Ada library information (.ali) files.
 214 # $1 stage name
 215 # $2 file path (list)
 216 src-to-ali=\
 217         $(patsubst $(obj)/%,$(obj)/$(1)/%,\
 218         $(patsubst $(obj)/$(1)/%,$(obj)/%,\
 219         $(patsubst 3rdparty/%,$(obj)/%,\
 220         $(patsubst src/%,$(obj)/%,\
 221         $(patsubst %.ads,%.ali,\
 222         $(patsubst %.adb,%.ali,\
 223         $(subst .$(1),,\
 224         $(filter %.ads %.adb,$(2)))))))))
 225
 226 # Clean -y variables, include Makefile.inc
 227 # Add paths to files in X-y to X-srcs
 228 # Add subdirs-y to subdirs
 229 includemakefiles= \
 230         $(foreach class,classes subdirs $(classes) $(special-classes), $(eval $(class)-y:=)) \
 231         $(eval -include $(1)) \
 232         $(foreach class,$(classes-y), $(call add-class,$(class))) \
 233         $(foreach class,$(classes), \
 234                 $(eval $(class)-srcs+= \
 235                         $$(subst $(absobj)/,$(obj)/, \
 236                         $$(subst $(top)/,, \
 237                         $$(abspath $$(subst $(dir $(1))/,/,$$(addprefix $(dir $(1)),$$($(class)-y)))))))) \
 238         $(foreach special,$(special-classes), \
 239                 $(foreach item,$($(special)-y), $(call $(special)-handler,$(dir $(1)),$(item)))) \
 240         $(eval subdirs+=$$(subst $(CURDIR)/,,$$(wildcard $$(abspath $$(addprefix $(dir $(1)),$$(subdirs-y))))))
 241
 242 # For each path in $(subdirs) call includemakefiles
 243 # Repeat until subdirs is empty
 244 evaluate_subdirs= \
 245         $(eval cursubdirs:=$(subdirs)) \
 246         $(eval subdirs:=) \
 247         $(foreach dir,$(cursubdirs), \
 248                 $(eval $(call includemakefiles,$(dir)/Makefile.inc))) \
 249         $(if $(subdirs),$(eval $(call evaluate_subdirs)))
 250
 251 # collect all object files eligible for building
 252 subdirs:=$(TOPLEVEL)
 253 postinclude-hooks :=
 254 $(eval $(call evaluate_subdirs))
 255 ifeq ($(FAILBUILD),1)
 256 $(error cannot continue build)
 257 endif
 258
 259 # Run hooks registered by subdirectories that need to be evaluated after all files have been parsed
 260 $(eval $(postinclude-hooks))
 261
 262 # Eliminate duplicate mentions of source files in a class
 263 $(foreach class,$(classes),$(eval $(class)-srcs:=$(sort $($(class)-srcs))))
 264
 265 # To track dependencies, we need all Ada specification (.ads) files in
 266 # *-srcs. Extract / filter all specification files that have a matching
 267 # body (.adb) file here (specifications without a body are valid sources
 268 # in Ada).
 269 $(foreach class,$(classes),$(eval $(class)-extra-specs := \
 270         $(filter \
 271                 $(addprefix %/,$(patsubst %.adb,%.ads,$(notdir $(filter %.adb,$($(class)-srcs))))), \
 272                 $(filter %.ads,$($(class)-srcs)))))
 273 $(foreach class,$(classes),$(eval $(class)-srcs := \
 274         $(filter-out $($(class)-extra-specs),$($(class)-srcs))))
 275
 276 $(foreach class,$(classes),$(eval $(class)-objs:=$(call src-to-obj,$(class),$($(class)-srcs))))
 277 $(foreach class,$(classes),$(eval $(class)-alis:=$(call src-to-ali,$(class),$($(class)-srcs))))
 278
 279 # For Ada includes
 280 $(foreach class,$(classes),$(eval $(class)-ada-dirs:=$(sort $(dir $(filter %.ads %.adb,$($(class)-srcs)) $($(class)-extra-specs)))))
 281
 282 # Save all objs before processing them (for dependency inclusion)
 283 originalobjs:=$(foreach var, $(addsuffix -objs,$(classes)), $($(var)))
 284
 285 # Call post-processors if they're defined
 286 $(foreach class,$(classes),\
 287         $(if $(value $(class)-postprocess),$(eval $(call $(class)-postprocess,$($(class)-objs)))))
 288
 289 allsrcs:=$(foreach var, $(addsuffix -srcs,$(classes)), $($(var)))
 290 allobjs:=$(foreach var, $(addsuffix -objs,$(classes)), $($(var)))
 291 alldirs:=$(sort $(abspath $(dir $(allobjs))))
 292
 293 # Reads dependencies from an Ada library information (.ali) file
 294 # Only basenames (with suffix) are preserved so we have to look the
 295 # paths up in $($(stage)-srcs).
 296 # $1 stage name
 297 # $2 ali file
 298 create_ada_deps=$$(if $(2),\
 299         gnat.adc \
 300         $$(filter \
 301                 $$(addprefix %/,$$(shell sed -ne's/^D \([^\t]\+\).*$$$$/\1/p' $(2) 2>/dev/null)), \
 302                 $$($(1)-srcs) $$($(1)-extra-specs)))
 303
 304 # macro to define template macros that are used by use_template macro
 305 define create_cc_template
 306 # $1 obj class
 307 # $2 source suffix (c, S, ld, ...)
 308 # $3 additional compiler flags
 309 # $4 additional dependencies
 310 ifn$(EMPTY)def $(1)-objs_$(2)_template
 311 de$(EMPTY)fine $(1)-objs_$(2)_template
 312 ifn$(EMPTY)eq ($(filter ads adb,$(2)),)
 313 $$(call src-to-obj,$1,$$(1).$2): $$(1).$2 $$(call create_ada_deps,$1,$$(call src-to-ali,$1,$$(1).$2)) $(KCONFIG_AUTOHEADER) $(4)
 314         @printf "    GCC        $$$$(subst $$$$(obj)/,,$$$$(@))\n"
 315         $(GCC_$(1)) \
 316                 $$$$(ADAFLAGS_$(1)) $$$$(addprefix -I,$$$$($(1)-ada-dirs)) \
 317                 $(3) -c -o $$$$@ $$$$<
 318 el$(EMPTY)se
 319 $$(call src-to-obj,$1,$$(1).$2): $$(1).$2 $(KCONFIG_AUTOHEADER) $(4)
 320         @printf "    CC         $$$$(subst $$$$(obj)/,,$$$$(@))\n"
 321         $(CC_$(1)) \
 322                 -MMD $$$$(CPPFLAGS_$(1)) $$$$(CFLAGS_$(1)) -MT $$$$(@) \
 323                 $(3) -c -o $$$$@ $$$$<
 324 end$(EMPTY)if
 325 en$(EMPTY)def
 326 end$(EMPTY)if
 327 endef
 328
 329 filetypes-of-class=$(subst .,,$(sort $(suffix $($(1)-srcs))))
 330 $(foreach class,$(classes), \
 331         $(foreach type,$(call filetypes-of-class,$(class)), \
 332                 $(eval $(class)-$(type)-ccopts += $(generic-$(type)-ccopts) $($(class)-generic-ccopts)) \
 333                 $(if $(generic-objs_$(type)_template_gen),$(eval $(call generic-objs_$(type)_template_gen,$(class))),\
 334                 $(eval $(call create_cc_template,$(class),$(type),$($(class)-$(type)-ccopts),$($(class)-$(type)-deps))))))
 335
 336 foreach-src=$(foreach file,$($(1)-srcs),$(eval $(call $(1)-objs_$(subst .,,$(suffix $(file)))_template,$(basename $(file)))))
 337 $(eval $(foreach class,$(classes),$(call foreach-src,$(class))))
 338
 339 # To supported complex package initializations, we need to call the
 340 # emitted code explicitly. gnatbind gathers all the calls for us
 341 # and exports them as a procedure $(stage)_adainit(). Every stage that
 342 # uses Ada code has to call it!
 343 define gnatbind_template
 344 # $1 class
 345 $$(obj)/$(1)/b__$(1).adb: $$$$(filter-out $$(obj)/$(1)/b__$(1).ali,$$$$($(1)-alis))
 346         @printf "    BIND       $$(subst $$(obj)/,,$$@)\n"
 347         # We have to give gnatbind a simple filename (without leading
 348         # path components) so just cd there.
 349         cd $$(dir $$@) && \
 350                 $$(GNATBIND_$(1)) -a -n \
 351                         --RTS=$$(absobj)/libgnat-$$(ARCH-$(1)-y)/ \
 352                         -L$(1)_ada -o $$(notdir $$@) \
 353                         $$(subst $$(dir $$@),,$$^)
 354 $$(obj)/$(1)/b__$(1).o: $$(obj)/$(1)/b__$(1).adb
 355         @printf "    GCC        $$(subst $$(obj)/,,$$@)\n"
 356         $(GCC_$(1)) $$(ADAFLAGS_$(1)) -c -o $$@ $$<
 357 $(1)-objs += $$(obj)/$(1)/b__$(1).o
 358 $($(1)-alis): %.ali: %.o ;
 359 endef
 360
 361 $(eval $(foreach class,$(filter-out libgnat-%,$(classes)), \
 362         $(if $($(class)-alis),$(call gnatbind_template,$(class)))))
 363
 364 DEPENDENCIES += $(addsuffix .d,$(basename $(allobjs)))
 365 -include $(DEPENDENCIES)
 366
 367 printall:
 368         @$(foreach class,$(classes), echo $(class)-objs: $($(class)-objs) | tr ' ' '\n'; echo; )
 369         @echo alldirs: $(alldirs) | tr ' ' '\n'; echo
 370         @echo allsrcs: $(allsrcs) | tr ' ' '\n'; echo
 371         @echo DEPENDENCIES: $(DEPENDENCIES) | tr ' ' '\n'; echo
 372         @$(foreach class,$(special-classes),echo $(class):'$($(class))' | tr ' ' '\n'; echo; )
 373 endif
 374
 375 ifndef NOMKDIR
 376 $(shell mkdir -p $(KCONFIG_SPLITCONFIG) $(objk)/lxdialog $(additional-dirs) $(alldirs))
 377 endif
 378
 379 $(obj)/project_filelist.txt:
 380         if [ -z "$(wildcard $(obj)/coreboot.rom)" ]; then \
 381                 echo "*** Error: Project must be built before generating file list ***"; \
 382                 exit 1; \
 383         fi
 384         find $(obj) -path "$(obj)/util" -prune -o -name "*.d" -exec cat {} \; | \
 385           sed "s|$(top)/||" | sed 's/[:\\]/ /g' | sed 's/ /\n/g' | sort | uniq | \
 386           grep -v '\.o$$' > $(obj)/project_filelist.txt
 387
 388 filelist: $(obj)/project_filelist.txt
 389         printf "\nFiles used in build:\n"
 390         cat $(obj)/project_filelist.txt
 391
 392 #works with either exuberant ctags or ctags.emacs
 393 ctags-project: clean-ctags $(obj)/project_filelist.txt
 394         cat $(obj)/project_filelist.txt | \
 395           xargs ctags -o tags
 396
 397 cscope-project: clean-cscope $(obj)/project_filelist.txt
 398         cat $(obj)/project_filelist.txt | xargs cscope -b
 399
 400 cscope:
 401         cscope -bR
 402
 403 doxy: doxygen
 404 doxygen:
 405         $(DOXYGEN) Documentation/Doxyfile.coreboot
 406
 407 doxygen_simple:
 408         $(DOXYGEN) Documentation/Doxyfile.coreboot_simple
 409
 410 doxyplatform doxygen_platform: $(obj)/project_filelist.txt
 411         echo
 412         echo "Building doxygen documentation for $(CONFIG_MAINBOARD_PART_NUMBER)"
 413         export DOXYGEN_OUTPUT_DIR="$(DOXYGEN_OUTPUT_DIR)/$(CONFIG_MAINBOARD_VENDOR)/$(CONFIG_MAINBOARD_PART_NUMBER)"; \
 414         mkdir -p "$$DOXYGEN_OUTPUT_DIR"; \
 415         export DOXYFILES="$$(cat $(obj)/project_filelist.txt | grep -v '\.ld$$' | sed 's/\.aml/\.dsl/' | tr '\n' ' ')"; \
 416         export DOXYGEN_PLATFORM="$(CONFIG_MAINBOARD_DIR) ($(CONFIG_MAINBOARD_PART_NUMBER)) version $(KERNELVERSION)"; \
 417         $(DOXYGEN) Documentation/doxygen/Doxyfile.coreboot_platform
 418
 419 doxyclean: doxygen-clean
 420 doxygen-clean:
 421         rm -rf $(DOXYGEN_OUTPUT_DIR)
 422
 423 clean-for-update: doxygen-clean clean-for-update-target
 424         rm -rf $(obj) .xcompile
 425
 426 clean: clean-for-update clean-target clean-utils
 427         rm -f .ccwrap
 428
 429 clean-cscope:
 430         rm -f cscope.out
 431
 432 clean-ctags:
 433         rm -f tags
 434
 435 clean-utils:
 436         $(foreach tool, $(TOOLLIST), \
 437                 $(MAKE) -C util/$(tool) clean MFLAGS= MAKEFLAGS= ;)
 438
 439 distclean-utils:
 440         $(foreach tool, $(TOOLLIST), \
 441                 $(MAKE) -C util/$(tool) distclean MFLAGS= MAKEFLAGS= ; \
 442                 rm -f /util/$(tool)/junit.xml;)
 443
 444 distclean: clean clean-ctags clean-cscope distclean-payloads distclean-utils
 445         rm -f .config .config.old ..config.tmp* .kconfig.d .tmpconfig* .ccwrap .xcompile
 446         rm -rf coreboot-builds coreboot-builds-chromeos
 447         rm -f abuild*.xml junit.xml* util/lint/junit.xml
 448
 449 .PHONY: $(PHONY) clean clean-for-update clean-cscope cscope distclean doxygen doxy doxygen_simple
 450 .PHONY: ctags-project cscope-project clean-ctags