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 ?= $(top)/.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 ($(filter %config %clean cross% clang iasl gnumake lint% help% what-jenkins-does,$(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 $(DOTCONFIG)
 141
 142 -include .xcompile
 143
 144 ifneq ($(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 .ads, adb, .c and .S get converted to .o, other files (like .ld) keep
 187 # their name.
 188 # $1 stage name
 189 # $2 file path (list)
 190 src-to-obj=\
 191         $(patsubst $(obj)/%,$(obj)/$(1)/%,\
 192         $(patsubst $(obj)/$(1)/%,$(obj)/%,\
 193         $(patsubst src/%,$(obj)/%,\
 194         $(patsubst %.ads,%.o,\
 195         $(patsubst %.adb,%.o,\
 196         $(patsubst %.c,%.o,\
 197         $(patsubst %.S,%.o,\
 198         $(subst .$(1),,$(2)))))))))
 199
 200 # Converts one or more source file paths to the corresponding build/ paths
 201 # of their Ada library information (.ali) files.
 202 # $1 stage name
 203 # $2 file path (list)
 204 src-to-ali=\
 205         $(patsubst $(obj)/%,$(obj)/$(1)/%,\
 206         $(patsubst $(obj)/$(1)/%,$(obj)/%,\
 207         $(patsubst src/%,$(obj)/%,\
 208         $(patsubst %.ads,%.ali,\
 209         $(patsubst %.adb,%.ali,\
 210         $(subst .$(1),,\
 211         $(filter %.ads %.adb,$(2))))))))
 212
 213 # Clean -y variables, include Makefile.inc
 214 # Add paths to files in X-y to X-srcs
 215 # Add subdirs-y to subdirs
 216 includemakefiles= \
 217         $(foreach class,classes subdirs $(classes) $(special-classes), $(eval $(class)-y:=)) \
 218         $(eval -include $(1)) \
 219         $(foreach class,$(classes-y), $(call add-class,$(class))) \
 220         $(foreach class,$(classes), \
 221                 $(eval $(class)-srcs+= \
 222                         $$(subst $(absobj)/,$(obj)/, \
 223                         $$(subst $(top)/,, \
 224                         $$(abspath $$(subst $(dir $(1))/,/,$$(addprefix $(dir $(1)),$$($(class)-y)))))))) \
 225         $(foreach special,$(special-classes), \
 226                 $(foreach item,$($(special)-y), $(call $(special)-handler,$(dir $(1)),$(item)))) \
 227         $(eval subdirs+=$$(subst $(CURDIR)/,,$$(abspath $$(addprefix $(dir $(1)),$$(subdirs-y)))))
 228
 229 # For each path in $(subdirs) call includemakefiles
 230 # Repeat until subdirs is empty
 231 evaluate_subdirs= \
 232         $(eval cursubdirs:=$(subdirs)) \
 233         $(eval subdirs:=) \
 234         $(foreach dir,$(cursubdirs), \
 235                 $(eval $(call includemakefiles,$(dir)/Makefile.inc))) \
 236         $(if $(subdirs),$(eval $(call evaluate_subdirs)))
 237
 238 # collect all object files eligible for building
 239 subdirs:=$(TOPLEVEL)
 240 $(eval $(call evaluate_subdirs))
 241 ifeq ($(FAILBUILD),1)
 242 $(error cannot continue build)
 243 endif
 244
 245 # Eliminate duplicate mentions of source files in a class
 246 $(foreach class,$(classes),$(eval $(class)-srcs:=$(sort $($(class)-srcs))))
 247
 248 # To track dependencies, we need all Ada specification (.ads) files in
 249 # *-srcs. Extract / filter all specification files that have a matching
 250 # body (.adb) file here (specifications without a body are valid sources
 251 # in Ada).
 252 $(foreach class,$(classes),$(eval $(class)-extra-specs := \
 253         $(filter \
 254                 $(addprefix %/,$(patsubst %.adb,%.ads,$(notdir $(filter %.adb,$($(class)-srcs))))), \
 255                 $(filter %.ads,$($(class)-srcs)))))
 256 $(foreach class,$(classes),$(eval $(class)-srcs := \
 257         $(filter-out $($(class)-extra-specs),$($(class)-srcs))))
 258
 259 $(foreach class,$(classes),$(eval $(class)-objs:=$(call src-to-obj,$(class),$($(class)-srcs))))
 260 $(foreach class,$(classes),$(eval $(class)-alis:=$(call src-to-ali,$(class),$($(class)-srcs))))
 261
 262 # For Ada includes
 263 $(foreach class,$(classes),$(eval $(class)-ada-dirs:=$(sort $(dir $(filter %.ads %.adb,$($(class)-srcs)) $($(class)-extra-specs)))))
 264
 265 # Save all objs before processing them (for dependency inclusion)
 266 originalobjs:=$(foreach var, $(addsuffix -objs,$(classes)), $($(var)))
 267
 268 # Call post-processors if they're defined
 269 $(foreach class,$(classes),\
 270         $(if $(value $(class)-postprocess),$(eval $(call $(class)-postprocess,$($(class)-objs)))))
 271
 272 allsrcs:=$(foreach var, $(addsuffix -srcs,$(classes)), $($(var)))
 273 allobjs:=$(foreach var, $(addsuffix -objs,$(classes)), $($(var)))
 274 alldirs:=$(sort $(abspath $(dir $(allobjs))))
 275
 276 # Reads dependencies from an Ada library information (.ali) file
 277 # Only basenames (with suffix) are preserved so we have to look the
 278 # paths up in $($(stage)-srcs).
 279 # $1 stage name
 280 # $2 ali file
 281 create_ada_deps=$$(if $(2),\
 282         gnat.adc \
 283         $$(filter \
 284                 $$(addprefix %/,$$(shell sed -ne's/^D \([^\t]\+\).*$$$$/\1/p' $(2) 2>/dev/null)), \
 285                 $$($(1)-srcs) $$($(1)-extra-specs)))
 286
 287 # macro to define template macros that are used by use_template macro
 288 define create_cc_template
 289 # $1 obj class
 290 # $2 source suffix (c, S, ld, ...)
 291 # $3 additional compiler flags
 292 # $4 additional dependencies
 293 ifn$(EMPTY)def $(1)-objs_$(2)_template
 294 de$(EMPTY)fine $(1)-objs_$(2)_template
 295 $$(call src-to-obj,$1,$$(1).$2): $$(1).$2 $$(call create_ada_deps,$1,$$(call src-to-ali,$1,$$(1).$2)) $(KCONFIG_AUTOHEADER) $(4)
 296         @printf "    CC         $$$$(subst $$$$(obj)/,,$$$$(@))\n"
 297         $(CC_$(1)) \
 298                 $$(if $$(filter-out ads adb,$(2)), \
 299                    -MMD $$$$(CPPFLAGS_$(1)) $$$$(CFLAGS_$(1)) -MT $$$$(@), \
 300                    $$$$(ADAFLAGS_$(1)) $$$$(addprefix -I,$$$$($(1)-ada-dirs))) \
 301                 $(3) -c -o $$$$@ $$$$<
 302 en$(EMPTY)def
 303 end$(EMPTY)if
 304 endef
 305
 306 filetypes-of-class=$(subst .,,$(sort $(suffix $($(1)-srcs))))
 307 $(foreach class,$(classes), \
 308         $(foreach type,$(call filetypes-of-class,$(class)), \
 309                 $(eval $(class)-$(type)-ccopts += $(generic-$(type)-ccopts) $($(class)-generic-ccopts)) \
 310                 $(if $(generic-objs_$(type)_template_gen),$(eval $(call generic-objs_$(type)_template_gen,$(class))),\
 311                 $(eval $(call create_cc_template,$(class),$(type),$($(class)-$(type)-ccopts),$($(class)-$(type)-deps))))))
 312
 313 foreach-src=$(foreach file,$($(1)-srcs),$(eval $(call $(1)-objs_$(subst .,,$(suffix $(file)))_template,$(basename $(file)))))
 314 $(eval $(foreach class,$(classes),$(call foreach-src,$(class))))
 315
 316 # To supported complex package initializations, we need to call the
 317 # emitted code explicitly. gnatbind gathers all the calls for us
 318 # and exports them as a procedure $(stage)_adainit(). Every stage that
 319 # uses Ada code has to call it!
 320 define gnatbind_template
 321 # $1 class
 322 $$(obj)/$(1)/b__$(1).adb: $$$$(filter-out $$(obj)/$(1)/b__$(1).ali,$$$$($(1)-alis))
 323         @printf "    BIND       $$(subst $$(obj)/,,$$@)\n"
 324         # We have to give gnatbind a simple filename (without leading
 325         # path components) so just cd there.
 326         cd $$(dir $$@) && \
 327                 $$(GNATBIND_$(1)) -a -n \
 328                         --RTS=$$(absobj)/libgnat-$$(ARCH-$(1)-y)/ \
 329                         -L$(1)_ada -o $$(notdir $$@) \
 330                         $$(subst $$(dir $$@),,$$^)
 331 $$(obj)/$(1)/b__$(1).o: $$(obj)/$(1)/b__$(1).adb
 332         @printf "    CC         $$(subst $$(obj)/,,$$@)\n"
 333         $(CC_$(1)) $$(ADAFLAGS_$(1)) -c -o $$@ $$<
 334 $(1)-objs += $$(obj)/$(1)/b__$(1).o
 335 $($(1)-alis): %.ali: %.o ;
 336 endef
 337
 338 $(eval $(foreach class,$(filter-out libgnat-%,$(classes)), \
 339         $(if $($(class)-alis),$(call gnatbind_template,$(class)))))
 340
 341 DEPENDENCIES += $(addsuffix .d,$(basename $(allobjs)))
 342 -include $(DEPENDENCIES)
 343
 344 printall:
 345         @$(foreach class,$(classes), echo $(class)-objs: $($(class)-objs) | tr ' ' '\n'; echo; )
 346         @echo alldirs: $(alldirs) | tr ' ' '\n'; echo
 347         @echo allsrcs: $(allsrcs) | tr ' ' '\n'; echo
 348         @echo DEPENDENCIES: $(DEPENDENCIES) | tr ' ' '\n'; echo
 349         @$(foreach class,$(special-classes),echo $(class):'$($(class))' | tr ' ' '\n'; echo; )
 350 endif
 351
 352 ifndef NOMKDIR
 353 $(shell mkdir -p $(KCONFIG_SPLITCONFIG) $(objk)/lxdialog $(additional-dirs) $(alldirs))
 354 endif
 355
 356 $(obj)/project_filelist.txt: all
 357         find $(obj) -name "*.d" -exec cat {} \; | \
 358           sed 's/[:\\]/ /g' | sed 's/ /\n/g' | sort | uniq | \
 359           grep -v '\.o$$' > $(obj)/project_filelist.txt
 360
 361 #works with either exuberant ctags or ctags.emacs
 362 ctags-project: clean-ctags $(obj)/project_filelist.txt
 363         cat $(obj)/project_filelist.txt | \
 364           xargs ctags -o tags
 365
 366 cscope-project: clean-cscope $(obj)/project_filelist.txt
 367         cat $(obj)/project_filelist.txt | xargs cscope -b
 368
 369 cscope:
 370         cscope -bR
 371
 372 doxy: doxygen
 373 doxygen:
 374         $(DOXYGEN) Documentation/Doxyfile.coreboot
 375
 376 doxygen_simple:
 377         $(DOXYGEN) Documentation/Doxyfile.coreboot_simple
 378
 379 doxyclean: doxygen-clean
 380 doxygen-clean:
 381         rm -rf $(DOXYGEN_OUTPUT_DIR)
 382
 383 clean-for-update: doxygen-clean clean-for-update-target
 384         rm -rf $(obj) .xcompile
 385
 386 clean: clean-for-update clean-target
 387         rm -f .ccwrap
 388
 389 clean-cscope:
 390         rm -f cscope.out
 391
 392 clean-ctags:
 393         rm -f tags
 394
 395 distclean: clean clean-ctags clean-cscope distclean-payloads
 396         rm -f .config .config.old ..config.tmp .kconfig.d .tmpconfig* .ccwrap .xcompile
 397
 398 .PHONY: $(PHONY) clean clean-for-update clean-cscope cscope distclean doxygen doxy doxygen_simple
 399 .PHONY: ctags-project cscope-project clean-ctags