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 ##
   8 ## This program is free software; you can redistribute it and/or modify
   9 ## it under the terms of the GNU General Public License as published by
  10 ## the Free Software Foundation; version 2 of the License.
  11 ##
  12 ## This program is distributed in the hope that it will be useful,
  13 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 ## GNU General Public License for more details.
  16 ##
  17 ## You should have received a copy of the GNU General Public License
  18 ## along with this program; if not, write to the Free Software
  19 ## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  20 ##
  21
  22 ifeq ($(INNER_SCANBUILD),y)
  23 CC_real:=$(CC)
  24 endif
  25
  26 $(if $(wildcard .xcompile),,$(eval $(shell bash util/xcompile/xcompile > .xcompile)))
  27 include .xcompile
  28
  29 ifeq ($(INNER_SCANBUILD),y)
  30 CC:=$(CC_real)
  31 HOSTCC:=$(CC_real) --hostcc
  32 HOSTCXX:=$(CC_real) --hostcxx
  33 endif
  34
  35 export top := $(CURDIR)
  36 export src := src
  37 export srck := $(top)/util/kconfig
  38 export obj ?= build
  39 export objutil ?= $(obj)/util
  40 export objk := $(objutil)/kconfig
  41
  42
  43 export KERNELVERSION      := 4.0
  44 export KCONFIG_AUTOHEADER := $(obj)/config.h
  45 export KCONFIG_AUTOCONFIG := $(obj)/auto.conf
  46
  47 CONFIG_SHELL := sh
  48 KBUILD_DEFCONFIG := configs/defconfig
  49 UNAME_RELEASE := $(shell uname -r)
  50 HAVE_DOTCONFIG := $(wildcard .config)
  51 MAKEFLAGS += -rR --no-print-directory
  52
  53 # Make is silent per default, but 'make V=1' will show all compiler calls.
  54 Q:=@
  55 ifneq ($(V),1)
  56 ifneq ($(Q),)
  57 .SILENT:
  58 endif
  59 endif
  60
  61 CPP:= $(CC) -x assembler-with-cpp -DASSEMBLY -E
  62 ROMCC:= $(objutil)/romcc/romcc
  63 HOSTCC = gcc
  64 HOSTCXX = g++
  65 HOSTCFLAGS := -I$(srck) -I$(objk) -g
  66 HOSTCXXFLAGS := -I$(srck) -I$(objk)
  67 LIBGCC_FILE_NAME := $(shell test -r `$(CC) -print-libgcc-file-name` && $(CC) -print-libgcc-file-name)
  68
  69 DOXYGEN := doxygen
  70 DOXYGEN_OUTPUT_DIR := doxygen
  71
  72 # Three cases where we don't need fully populated $(obj) lists:
  73 # 1. when no .config exists
  74 # 2. when make config (in any flavour) is run
  75 # 3. when make distclean is run
  76 # Don't waste time on reading all Makefile.incs in these cases
  77 ifeq ($(strip $(HAVE_DOTCONFIG)),)
  78 NOCOMPILE:=1
  79 endif
  80 ifneq ($(MAKECMDGOALS),)
  81 ifneq ($(filter %config distclean,$(MAKECMDGOALS)),)
  82 NOCOMPILE:=1
  83 endif
  84 endif
  85
  86 ifeq ($(NOCOMPILE),1)
  87 all: config
  88
  89 else
  90
  91 include $(HAVE_DOTCONFIG)
  92
  93 ifneq ($(INNER_SCANBUILD),y)
  94 ifeq ($(CONFIG_COMPILER_LLVM_CLANG),y)
  95 CC:=clang -m32
  96 HOSTCC:=clang
  97 endif
  98 endif
  99
 100 ifeq ($(CONFIG_CCACHE),y)
 101 CCACHE:=$(wildcard $(addsuffix /ccache,$(subst :, ,$(PATH))))
 102 ifeq ($(CCACHE),)
 103 $(error ccache selected, but not found in PATH)
 104 endif
 105 CCACHE:=CCACHE_COMPILERCHECK=content CCACHE_BASEDIR=$(top) $(CCACHE)
 106 CC := $(CCACHE) $(CC)
 107 HOSTCC := $(CCACHE) $(HOSTCC)
 108 HOSTCXX := $(CCACHE) $(HOSTCXX)
 109 ROMCC := $(CCACHE) $(ROMCC)
 110 endif
 111
 112 strip_quotes = $(subst ",,$(subst \",,$(1)))
 113
 114 ARCHDIR-$(CONFIG_ARCH_X86)    := i386
 115 ARCHDIR-$(CONFIG_ARCH_POWERPC) := ppc
 116
 117 MAINBOARDDIR=$(call strip_quotes,$(CONFIG_MAINBOARD_DIR))
 118 export MAINBOARDDIR
 119
 120 PLATFORM-y += src/arch/$(ARCHDIR-y) src/cpu src/mainboard/$(MAINBOARDDIR)
 121 TARGETS-y :=
 122
 123 BUILD-y := src/lib src/boot src/console src/devices src/southbridge src/northbridge src/superio src/drivers
 124 BUILD-y += util/cbfstool util/sconfig
 125 BUILD-$(CONFIG_ARCH_X86) += src/pc80
 126
 127 ifneq ($(CONFIG_LOCALVERSION),"")
 128 COREBOOT_EXTRA_VERSION := -$(call strip_quotes,$(CONFIG_LOCALVERSION))
 129 endif
 130
 131 # The primary target needs to be here before we include the
 132 # other files
 133
 134 ifeq ($(INNER_SCANBUILD),y)
 135 CONFIG_SCANBUILD_ENABLE:=
 136 endif
 137
 138 ifeq ($(CONFIG_SCANBUILD_ENABLE),y)
 139 ifneq ($(CONFIG_SCANBUILD_REPORT_LOCATION),)
 140 CONFIG_SCANBUILD_REPORT_LOCATION:=-o $(CONFIG_SCANBUILD_REPORT_LOCATION)
 141 endif
 142 all:
 143         echo '#!/bin/sh' > .ccwrap
 144         echo 'CC="$(CC)"' >> .ccwrap
 145         echo 'if [ "$$1" = "--hostcc" ]; then shift; CC="$(HOSTCC)"; fi' >> .ccwrap
 146         echo 'if [ "$$1" = "--hostcxx" ]; then shift; CC="$(HOSTCXX)"; fi' >> .ccwrap
 147         echo 'eval $$CC $$*' >> .ccwrap
 148         chmod +x .ccwrap
 149         scan-build $(CONFIG_SCANBUILD_REPORT_LOCATION) -analyze-headers --use-cc=$(top)/.ccwrap --use-c++=$(top)/.ccwrap $(MAKE) INNER_SCANBUILD=y
 150 else
 151 all: $(obj)/config.h coreboot
 152 endif
 153
 154 # must come rather early
 155 .SECONDEXPANSION:
 156
 157 $(obj)/config.h:
 158         $(MAKE) oldconfig
 159
 160 #######################################################################
 161 # Build the tools
 162
 163 CBFSTOOL:=$(objutil)/cbfstool/cbfstool
 164
 165 # needed objects that every mainboard uses
 166 # Creation of these is architecture and mainboard independent
 167 $(obj)/mainboard/$(MAINBOARDDIR)/static.c: $(src)/mainboard/$(MAINBOARDDIR)/devicetree.cb  $(objutil)/sconfig/sconfig
 168         @printf "    SCONFIG    $(subst $(src)/,,$(<))\n"
 169         mkdir -p $(obj)/mainboard/$(MAINBOARDDIR)
 170         $(objutil)/sconfig/sconfig $(MAINBOARDDIR) $(obj)/mainboard/$(MAINBOARDDIR)
 171
 172 $(objutil)/%.o: $(objutil)/%.c
 173         @printf "    HOSTCC     $(subst $(objutil)/,,$(@))\n"
 174         $(HOSTCC) -MMD -I$(subst $(objutil)/,util/,$(dir $<)) -I$(dir $<) $(HOSTCFLAGS) -c -o $@ $<
 175
 176 $(obj)/%.ramstage.o: $(obj)/%.c $(obj)/config.h
 177         @printf "    CC         $(subst $(obj)/,,$(@))\n"
 178         $(CC) -MMD $(CFLAGS) -c -o $@ $<
 179
 180 ramstage-srcs:=$(obj)/mainboard/$(MAINBOARDDIR)/static.c
 181 romstage-srcs:=
 182 driver-srcs:=
 183 smm-srcs:=
 184
 185 ramstage-objs:=
 186 romstage-objs:=
 187 driver-objs:=
 188 smm-objs:=
 189 types:=ramstage romstage driver smm
 190
 191 # Clean -y variables, include Makefile.inc
 192 # Add paths to files in X-y to X-srcs
 193 # Add subdirs-y to subdirs
 194 includemakefiles= \
 195         $(foreach type,$(2), $(eval $(type)-y:=)) \
 196         $(eval subdirs-y:=) \
 197         $(eval -include $(1)) \
 198         $(foreach type,$(2), \
 199                 $(eval $(type)-srcs+= \
 200                         $$(subst $(top)/,, \
 201                         $$(abspath $$(addprefix $(dir $(1)),$$($(type)-y)))))) \
 202         $(eval subdirs+=$$(subst $(CURDIR)/,,$$(abspath $$(addprefix $(dir $(1)),$$(subdirs-y)))))
 203
 204 # For each path in $(subdirs) call includemakefiles
 205 # Repeat until subdirs is empty
 206 evaluate_subdirs= \
 207         $(eval cursubdirs:=$(subdirs)) \
 208         $(eval subdirs:=) \
 209         $(foreach dir,$(cursubdirs), \
 210                 $(eval $(call includemakefiles,$(dir)/Makefile.inc,$(types)))) \
 211         $(if $(subdirs),$(eval $(call evaluate_subdirs)))
 212
 213 # collect all object files eligible for building
 214 subdirs:=$(PLATFORM-y) $(BUILD-y)
 215 $(eval $(call evaluate_subdirs))
 216
 217 src-to-obj=$(addsuffix .$(1).o, $(basename $(patsubst src/%, $(obj)/%, $($(1)-srcs))))
 218
 219 ramstage-objs:=$(call src-to-obj,ramstage)
 220 romstage-objs:=$(call src-to-obj,romstage)
 221 driver-objs:=$(call src-to-obj,driver)
 222 smm-objs:=$(call src-to-obj,smm)
 223
 224 allsrcs:=$(foreach var, $(addsuffix -srcs,$(types)), $($(var)))
 225 allobjs:=$(foreach var, $(addsuffix -objs,$(types)), $($(var)))
 226 alldirs:=$(sort $(abspath $(dir $(allobjs))))
 227
 228 define ramstage-objs_asl_template
 229 $(obj)/$(1).ramstage.o: src/$(1).asl
 230         @printf "    IASL       $$(subst $(top)/,,$$(@))\n"
 231         $(CPP) -D__ACPI__ -P -include $(abspath $(obj)/config.h) -I$(src) -I$(src)/mainboard/$(MAINBOARDDIR) $$< -o $$(basename $$@).asl
 232         iasl -p $$(obj)/$(1) -tc $$(basename $$@).asl > $$(basename $$@).asl.out
 233         mv $$(obj)/$(1).hex $$(basename $$@).c
 234         $(CC) $$(CFLAGS) $$(if $$(subst dsdt,,$$(basename $$(notdir $(1)))), -DAmlCode=AmlCode_$$(basename $$(notdir $(1)))) -c -o $$@ $$(basename $$@).c
 235         # keep %.o: %.c rule from catching the temporary .c file after a make clean
 236         mv $$(basename $$@).c $$(basename $$@).hex
 237 endef
 238
 239 # macro to define template macros that are used by use_template macro
 240 define create_cc_template
 241 # $1 obj class (ramstage, romstage, driver, smm)
 242 # $2 source suffix (c, S)
 243 # $3 additional compiler flags
 244 de$(EMPTY)fine $(1)-objs_$(2)_template
 245 $(obj)/$$(1).$(1).o: src/$$(1).$(2) $(obj)/config.h
 246         @printf "    CC         $$$$(subst $$$$(obj)/,,$$$$(@))\n"
 247         $(CC) $(3) -MMD $$$$(CFLAGS) -c -o $$$$@ $$$$<
 248 en$(EMPTY)def
 249 endef
 250
 251 $(eval $(call create_cc_template,ramstage,c))
 252 $(eval $(call create_cc_template,ramstage,S,-DASSEMBLY))
 253 $(eval $(call create_cc_template,romstage,c,-D__PRE_RAM__))
 254 $(eval $(call create_cc_template,romstage,S,-DASSEMBLY -D__PRE_RAM__))
 255 $(eval $(call create_cc_template,driver,c))
 256 $(eval $(call create_cc_template,driver,S,-DASSEMBLY))
 257 $(eval $(call create_cc_template,smm,c))
 258 $(eval $(call create_cc_template,smm,S))
 259
 260 foreach-src=$(foreach file,$($(1)-srcs),$(eval $(call $(1)-objs_$(subst .,,$(suffix $(file)))_template,$(subst src/,,$(basename $(file))))))
 261 $(eval $(foreach type,$(types),$(call foreach-src,$(type))))
 262
 263 DEPENDENCIES = $(ramstage-objs:.o=.d) $(romstage-objs:.o=.d) $(driver-objs:.o=.d) $(smm-objs:.o=.d)
 264 -include $(DEPENDENCIES)
 265
 266 printall:
 267         @echo ramstage-objs:=$(ramstage-objs)
 268         @echo romstage-objs:=$(romstage-objs)
 269         @echo driver-objs:=$(driver-objs)
 270         @echo smm-objs:=$(smm-objs)
 271         @echo alldirs:=$(alldirs)
 272         @echo allsrcs=$(allsrcs)
 273         @echo DEPENDENCIES=$(DEPENDENCIES)
 274         @echo LIBGCC_FILE_NAME=$(LIBGCC_FILE_NAME)
 275
 276 printcrt0s:
 277         @echo crt0s=$(crt0s)
 278         @echo ldscripts=$(ldscripts)
 279
 280 OBJS     := $(patsubst %,$(obj)/%,$(TARGETS-y))
 281 INCLUDES := -Isrc -Isrc/include -I$(obj) -Isrc/arch/$(ARCHDIR-y)/include
 282 INCLUDES += -Isrc/devices/oprom/include
 283 # abspath is a workaround for romcc
 284 INCLUDES += -include $(abspath $(obj)/config.h)
 285
 286 CFLAGS = $(INCLUDES) -Os -nostdinc -pipe -g
 287 CFLAGS += -nostdlib -Wall -Wundef -Wstrict-prototypes -Wmissing-prototypes
 288 CFLAGS += -Wwrite-strings -Wredundant-decls -Wno-trigraphs
 289 CFLAGS += -Wstrict-aliasing -Wshadow
 290 ifeq ($(CONFIG_WARNINGS_ARE_ERRORS),y)
 291 CFLAGS += -Werror
 292 endif
 293 CFLAGS += -fno-common -ffreestanding -fno-builtin -fomit-frame-pointer
 294
 295 CBFS_COMPRESS_FLAG:=l
 296 CBFS_PAYLOAD_COMPRESS_FLAG:=
 297 CBFS_PAYLOAD_COMPRESS_NAME:=none
 298 ifeq ($(CONFIG_COMPRESSED_PAYLOAD_LZMA),y)
 299 CBFS_PAYLOAD_COMPRESS_FLAG:=l
 300 CBFS_PAYLOAD_COMPRESS_NAME:=LZMA
 301 endif
 302
 303 coreboot: $(obj)/coreboot.rom
 304
 305 endif
 306
 307 $(shell mkdir -p $(obj) $(objutil)/kconfig/lxdialog $(objutil)/cbfstool $(objutil)/romcc $(objutil)/options $(alldirs))
 308
 309 $(obj)/build.h: .xcompile
 310         @printf "    GEN        build.h\n"
 311         rm -f $(obj)/build.h
 312         printf "/* build system definitions (autogenerated) */\n" > $(obj)/build.ht
 313         printf "#ifndef __BUILD_H\n" >> $(obj)/build.ht
 314         printf "#define __BUILD_H\n\n" >> $(obj)/build.ht
 315         printf "#define COREBOOT_VERSION \"$(KERNELVERSION)-r$(shell if [ -d $(top)/.svn -a -f "`which svnversion`" ]; then svnversion $(top); else if [ -d $(top)/.git -a -f "`which git`" ]; then git --git-dir=/$(top)/.git log|grep git-svn-id|cut -f 2 -d@|cut -f 1 -d' '|sort -g|tail -1; fi; fi)\"\n" >> $(obj)/build.ht
 316         printf "#define COREBOOT_EXTRA_VERSION \"$(COREBOOT_EXTRA_VERSION)\"\n" >> $(obj)/build.ht
 317         printf "#define COREBOOT_BUILD \"`LANG= date`\"\n" >> $(obj)/build.ht
 318         printf "\n" >> $(obj)/build.ht
 319         printf "#define COREBOOT_COMPILER \"$(shell LANG= $(CC) --version | head -n1)\"\n" >> $(obj)/build.ht
 320         printf "#define COREBOOT_ASSEMBLER \"$(shell LANG= $(AS) --version | head -n1)\"\n" >> $(obj)/build.ht
 321         printf "#define COREBOOT_LINKER \"$(shell LANG= $(LD) --version | head -n1)\"\n" >> $(obj)/build.ht
 322         printf "#define COREBOOT_COMPILE_TIME \"`LANG= date +%T`\"\n" >> $(obj)/build.ht
 323         printf "#define COREBOOT_COMPILE_BY \"$(subst \,@,$(shell PATH=$$PATH:/usr/ucb whoami))\"\n" >> $(obj)/build.ht
 324         printf "#define COREBOOT_COMPILE_HOST \"$(shell hostname -s 2>/dev/null)\"\n" >> $(obj)/build.ht
 325         printf "#define COREBOOT_COMPILE_DOMAIN \"$(shell test `uname -s` = "Linux" && dnsdomainname || domainname 2>/dev/null)\"\n" >> $(obj)/build.ht
 326         printf "#endif\n" >> $(obj)/build.ht
 327         mv $(obj)/build.ht $(obj)/build.h
 328
 329 cscope:
 330         cscope -bR
 331
 332 doxy: doxygen
 333 doxygen:
 334         $(DOXYGEN) documentation/Doxyfile.coreboot
 335
 336 doxyclean: doxygen-clean
 337 doxygen-clean:
 338         rm -rf $(DOXYGEN_OUTPUT_DIR)
 339
 340 clean-for-update: doxygen-clean
 341         rm -f $(ramstage-objs) $(romstage-objs) $(driver-objs) $(smm-objs) .xcompile
 342         rm -f $(DEPENDENCIES)
 343         rm -f $(obj)/coreboot_ram* $(obj)/coreboot.romstage $(obj)/coreboot.pre* $(obj)/coreboot.bootblock $(obj)/coreboot.a
 344         rm -rf $(obj)/bootblock* $(obj)/romstage* $(obj)/location.*
 345         rm -f $(obj)/option_table.* $(obj)/crt0.S $(obj)/ldscript
 346         rm -f $(obj)/mainboard/$(MAINBOARDDIR)/static.c $(obj)/mainboard/$(MAINBOARDDIR)/config.py $(obj)/mainboard/$(MAINBOARDDIR)/static.dot
 347         rm -f $(obj)/mainboard/$(MAINBOARDDIR)/crt0.s $(obj)/mainboard/$(MAINBOARDDIR)/crt0.disasm
 348         rm -f $(obj)/mainboard/$(MAINBOARDDIR)/romstage.inc
 349         rm -f $(obj)/mainboard/$(MAINBOARDDIR)/bootblock.* $(obj)/mainboard/$(MAINBOARDDIR)/dsdt.*
 350         rm -f $(obj)/cpu/x86/smm/smm_bin.c $(obj)/cpu/x86/smm/smm.* $(obj)/cpu/x86/smm/smm
 351         rmdir -p $(alldirs) 2>/dev/null >/dev/null || true
 352
 353 clean: clean-for-update
 354         rm -f $(obj)/coreboot* .ccwrap
 355
 356 clean-abuild:
 357         rm -rf coreboot-builds
 358
 359 clean-cscope:
 360         rm -f cscope.out
 361
 362 distclean: clean-cscope
 363         rm -rf $(obj)
 364         rm -f .config .config.old ..config.tmp .kconfig.d .tmpconfig* .ccwrap .xcompile
 365
 366 update:
 367         dongle.py -c /dev/term/1 $(obj)/coreboot.rom EOF
 368
 369 # This include must come _before_ the pattern rules below!
 370 # Order _does_ matter for pattern rules.
 371 include util/kconfig/Makefile
 372
 373 $(obj)/ldoptions: $(obj)/config.h
 374         awk '/^#define ([^"])* ([^"])*$$/ {gsub("\\r","",$$3); print $$2 " = " $$3 ";";}' $< > $@
 375
 376 _WINCHECK=$(shell uname -o 2> /dev/null)
 377 STACK=
 378 ifeq ($(_WINCHECK),Msys)
 379         STACK=-Wl,--stack,16384000
 380 endif
 381 ifeq ($(_WINCHECK),Cygwin)
 382         STACK=-Wl,--stack,16384000
 383 endif
 384
 385 $(objutil)/romcc/romcc: $(top)/util/romcc/romcc.c
 386         @printf "    HOSTCC     $(subst $(obj)/,,$(@)) (this may take a while)\n"
 387         @# Note: Adding -O2 here might cause problems. For details see:
 388         @# http://www.coreboot.org/pipermail/coreboot/2010-February/055825.html
 389         $(HOSTCC) -g $(STACK) -Wall -o $@ $<
 390
 391 .PHONY: $(PHONY) clean clean-abuild clean-cscope cscope distclean doxygen doxy coreboot .xcompile
 392