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