1VERSION = 2015 2PATCHLEVEL = 04 3SUBLEVEL = 4EXTRAVERSION = -rc5 5NAME = 6 7# *DOCUMENTATION* 8# To see a list of typical targets execute "make help" 9# More info can be located in ./README 10# Comments in this file are targeted only to the developer, do not 11# expect to learn how to build the kernel reading this file. 12 13# Do not use make's built-in rules and variables 14# (this increases performance and avoids hard-to-debug behaviour); 15MAKEFLAGS += -rR 16 17# Avoid funny character set dependencies 18unexport LC_ALL 19LC_COLLATE=C 20LC_NUMERIC=C 21export LC_COLLATE LC_NUMERIC 22 23# Avoid interference with shell env settings 24unexport GREP_OPTIONS 25 26# We are using a recursive build, so we need to do a little thinking 27# to get the ordering right. 28# 29# Most importantly: sub-Makefiles should only ever modify files in 30# their own directory. If in some directory we have a dependency on 31# a file in another dir (which doesn't happen often, but it's often 32# unavoidable when linking the built-in.o targets which finally 33# turn into vmlinux), we will call a sub make in that other dir, and 34# after that we are sure that everything which is in that other dir 35# is now up to date. 36# 37# The only cases where we need to modify files which have global 38# effects are thus separated out and done before the recursive 39# descending is started. They are now explicitly listed as the 40# prepare rule. 41 42# Beautify output 43# --------------------------------------------------------------------------- 44# 45# Normally, we echo the whole command before executing it. By making 46# that echo $($(quiet)$(cmd)), we now have the possibility to set 47# $(quiet) to choose other forms of output instead, e.g. 48# 49# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ 50# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< 51# 52# If $(quiet) is empty, the whole command will be printed. 53# If it is set to "quiet_", only the short version will be printed. 54# If it is set to "silent_", nothing will be printed at all, since 55# the variable $(silent_cmd_cc_o_c) doesn't exist. 56# 57# A simple variant is to prefix commands with $(Q) - that's useful 58# for commands that shall be hidden in non-verbose mode. 59# 60# $(Q)ln $@ :< 61# 62# If KBUILD_VERBOSE equals 0 then the above command will be hidden. 63# If KBUILD_VERBOSE equals 1 then the above command is displayed. 64# 65# To put more focus on warnings, be less verbose as default 66# Use 'make V=1' to see the full commands 67 68ifeq ("$(origin V)", "command line") 69 KBUILD_VERBOSE = $(V) 70endif 71ifndef KBUILD_VERBOSE 72 KBUILD_VERBOSE = 0 73endif 74 75ifeq ($(KBUILD_VERBOSE),1) 76 quiet = 77 Q = 78else 79 quiet=quiet_ 80 Q = @ 81endif 82 83# If the user is running make -s (silent mode), suppress echoing of 84# commands 85 86ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4 87ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),) 88 quiet=silent_ 89endif 90else # make-3.8x 91ifneq ($(filter s% -s%,$(MAKEFLAGS)),) 92 quiet=silent_ 93endif 94endif 95 96export quiet Q KBUILD_VERBOSE 97 98# kbuild supports saving output files in a separate directory. 99# To locate output files in a separate directory two syntaxes are supported. 100# In both cases the working directory must be the root of the kernel src. 101# 1) O= 102# Use "make O=dir/to/store/output/files/" 103# 104# 2) Set KBUILD_OUTPUT 105# Set the environment variable KBUILD_OUTPUT to point to the directory 106# where the output files shall be placed. 107# export KBUILD_OUTPUT=dir/to/store/output/files/ 108# make 109# 110# The O= assignment takes precedence over the KBUILD_OUTPUT environment 111# variable. 112 113# KBUILD_SRC is set on invocation of make in OBJ directory 114# KBUILD_SRC is not intended to be used by the regular user (for now) 115ifeq ($(KBUILD_SRC),) 116 117# OK, Make called in directory where kernel src resides 118# Do we want to locate output files in a separate directory? 119ifeq ("$(origin O)", "command line") 120 KBUILD_OUTPUT := $(O) 121endif 122 123# That's our default target when none is given on the command line 124PHONY := _all 125_all: 126 127# Cancel implicit rules on top Makefile 128$(CURDIR)/Makefile Makefile: ; 129 130ifneq ($(KBUILD_OUTPUT),) 131# Invoke a second make in the output directory, passing relevant variables 132# check that the output directory actually exists 133saved-output := $(KBUILD_OUTPUT) 134KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \ 135 && /bin/pwd) 136$(if $(KBUILD_OUTPUT),, \ 137 $(error failed to create output directory "$(saved-output)")) 138 139PHONY += $(MAKECMDGOALS) sub-make 140 141$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make 142 @: 143 144sub-make: FORCE 145 $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \ 146 -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS)) 147 148# Leave processing to above invocation of make 149skip-makefile := 1 150endif # ifneq ($(KBUILD_OUTPUT),) 151endif # ifeq ($(KBUILD_SRC),) 152 153# We process the rest of the Makefile if this is the final invocation of make 154ifeq ($(skip-makefile),) 155 156# Do not print "Entering directory ...", 157# but we want to display it when entering to the output directory 158# so that IDEs/editors are able to understand relative filenames. 159MAKEFLAGS += --no-print-directory 160 161# Call a source code checker (by default, "sparse") as part of the 162# C compilation. 163# 164# Use 'make C=1' to enable checking of only re-compiled files. 165# Use 'make C=2' to enable checking of *all* source files, regardless 166# of whether they are re-compiled or not. 167# 168# See the file "Documentation/sparse.txt" for more details, including 169# where to get the "sparse" utility. 170 171ifeq ("$(origin C)", "command line") 172 KBUILD_CHECKSRC = $(C) 173endif 174ifndef KBUILD_CHECKSRC 175 KBUILD_CHECKSRC = 0 176endif 177 178# Use make M=dir to specify directory of external module to build 179# Old syntax make ... SUBDIRS=$PWD is still supported 180# Setting the environment variable KBUILD_EXTMOD take precedence 181ifdef SUBDIRS 182 KBUILD_EXTMOD ?= $(SUBDIRS) 183endif 184 185ifeq ("$(origin M)", "command line") 186 KBUILD_EXTMOD := $(M) 187endif 188 189# If building an external module we do not care about the all: rule 190# but instead _all depend on modules 191PHONY += all 192ifeq ($(KBUILD_EXTMOD),) 193_all: all 194else 195_all: modules 196endif 197 198ifeq ($(KBUILD_SRC),) 199 # building in the source tree 200 srctree := . 201else 202 ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR))) 203 # building in a subdirectory of the source tree 204 srctree := .. 205 else 206 srctree := $(KBUILD_SRC) 207 endif 208endif 209objtree := . 210src := $(srctree) 211obj := $(objtree) 212 213VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) 214 215export srctree objtree VPATH 216 217# Make sure CDPATH settings don't interfere 218unexport CDPATH 219 220######################################################################### 221 222HOSTARCH := $(shell uname -m | \ 223 sed -e s/i.86/x86/ \ 224 -e s/sun4u/sparc64/ \ 225 -e s/arm.*/arm/ \ 226 -e s/sa110/arm/ \ 227 -e s/ppc64/powerpc/ \ 228 -e s/ppc/powerpc/ \ 229 -e s/macppc/powerpc/\ 230 -e s/sh.*/sh/) 231 232HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \ 233 sed -e 's/\(cygwin\).*/cygwin/') 234 235export HOSTARCH HOSTOS 236 237######################################################################### 238 239# set default to nothing for native builds 240ifeq ($(HOSTARCH),$(ARCH)) 241CROSS_COMPILE ?= 242endif 243 244KCONFIG_CONFIG ?= .config 245export KCONFIG_CONFIG 246 247# SHELL used by kbuild 248CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ 249 else if [ -x /bin/bash ]; then echo /bin/bash; \ 250 else echo sh; fi ; fi) 251 252HOSTCC = cc 253HOSTCXX = c++ 254HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer 255HOSTCXXFLAGS = -O2 256 257ifeq ($(HOSTOS),cygwin) 258HOSTCFLAGS += -ansi 259endif 260 261# Mac OS X / Darwin's C preprocessor is Apple specific. It 262# generates numerous errors and warnings. We want to bypass it 263# and use GNU C's cpp. To do this we pass the -traditional-cpp 264# option to the compiler. Note that the -traditional-cpp flag 265# DOES NOT have the same semantics as GNU C's flag, all it does 266# is invoke the GNU preprocessor in stock ANSI/ISO C fashion. 267# 268# Apple's linker is similar, thanks to the new 2 stage linking 269# multiple symbol definitions are treated as errors, hence the 270# -multiply_defined suppress option to turn off this error. 271# 272ifeq ($(HOSTOS),darwin) 273# get major and minor product version (e.g. '10' and '6' for Snow Leopard) 274DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.') 275DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.') 276 277os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \ 278 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;) 279 280# Snow Leopards build environment has no longer restrictions as described above 281HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc") 282HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp") 283HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress") 284 285# since Lion (10.7) ASLR is on by default, but we use linker generated lists 286# in some host tools which is a problem then ... so disable ASLR for these 287# tools 288HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie") 289endif 290 291# Decide whether to build built-in, modular, or both. 292# Normally, just do built-in. 293 294KBUILD_MODULES := 295KBUILD_BUILTIN := 1 296 297# If we have only "make modules", don't compile built-in objects. 298# When we're building modules with modversions, we need to consider 299# the built-in objects during the descend as well, in order to 300# make sure the checksums are up to date before we record them. 301 302ifeq ($(MAKECMDGOALS),modules) 303 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) 304endif 305 306# If we have "make <whatever> modules", compile modules 307# in addition to whatever we do anyway. 308# Just "make" or "make all" shall build modules as well 309 310# U-Boot does not need modules 311#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) 312# KBUILD_MODULES := 1 313#endif 314 315#ifeq ($(MAKECMDGOALS),) 316# KBUILD_MODULES := 1 317#endif 318 319export KBUILD_MODULES KBUILD_BUILTIN 320export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD 321 322# Look for make include files relative to root of kernel src 323MAKEFLAGS += --include-dir=$(srctree) 324 325# We need some generic definitions (do not try to remake the file). 326$(srctree)/scripts/Kbuild.include: ; 327include $(srctree)/scripts/Kbuild.include 328 329# Make variables (CC, etc...) 330 331AS = $(CROSS_COMPILE)as 332# Always use GNU ld 333ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),) 334LD = $(CROSS_COMPILE)ld.bfd 335else 336LD = $(CROSS_COMPILE)ld 337endif 338CC = $(CROSS_COMPILE)gcc 339CPP = $(CC) -E 340AR = $(CROSS_COMPILE)ar 341NM = $(CROSS_COMPILE)nm 342LDR = $(CROSS_COMPILE)ldr 343STRIP = $(CROSS_COMPILE)strip 344OBJCOPY = $(CROSS_COMPILE)objcopy 345OBJDUMP = $(CROSS_COMPILE)objdump 346AWK = awk 347PERL = perl 348PYTHON = python 349DTC = dtc 350CHECK = sparse 351 352CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ 353 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF) 354 355KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__ 356 357KBUILD_CFLAGS := -Wall -Wstrict-prototypes \ 358 -Wno-format-security \ 359 -fno-builtin -ffreestanding 360KBUILD_AFLAGS := -D__ASSEMBLY__ 361 362# Read UBOOTRELEASE from include/config/uboot.release (if it exists) 363UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null) 364UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) 365 366export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION 367export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR 368export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC 369export CPP AR NM LDR STRIP OBJCOPY OBJDUMP 370export MAKE AWK PERL PYTHON 371export HOSTCXX HOSTCXXFLAGS DTC CHECK CHECKFLAGS 372 373export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS 374export KBUILD_CFLAGS KBUILD_AFLAGS 375 376# When compiling out-of-tree modules, put MODVERDIR in the module 377# tree rather than in the kernel tree. The kernel tree might 378# even be read-only. 379export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions 380 381# Files to ignore in find ... statements 382 383export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ 384 -name CVS -o -name .pc -o -name .hg -o -name .git \) \ 385 -prune -o 386export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ 387 --exclude CVS --exclude .pc --exclude .hg --exclude .git 388 389# =========================================================================== 390# Rules shared between *config targets and build targets 391 392# Basic helpers built in scripts/ 393PHONY += scripts_basic 394scripts_basic: 395 $(Q)$(MAKE) $(build)=scripts/basic 396 $(Q)rm -f .tmp_quiet_recordmcount 397 398# To avoid any implicit rule to kick in, define an empty command. 399scripts/basic/%: scripts_basic ; 400 401PHONY += outputmakefile 402# outputmakefile generates a Makefile in the output directory, if using a 403# separate output directory. This allows convenient use of make in the 404# output directory. 405outputmakefile: 406ifneq ($(KBUILD_SRC),) 407 $(Q)ln -fsn $(srctree) source 408 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ 409 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) 410endif 411 412# To make sure we do not include .config for any of the *config targets 413# catch them early, and hand them over to scripts/kconfig/Makefile 414# It is allowed to specify more targets when calling make, including 415# mixing *config targets and build targets. 416# For example 'make oldconfig all'. 417# Detect when mixed targets is specified, and make a second invocation 418# of make so .config is not included in this case either (for *config). 419 420version_h := include/generated/version_autogenerated.h 421timestamp_h := include/generated/timestamp_autogenerated.h 422 423no-dot-config-targets := clean clobber mrproper distclean \ 424 help %docs check% coccicheck \ 425 ubootversion backup 426 427config-targets := 0 428mixed-targets := 0 429dot-config := 1 430 431ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) 432 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) 433 dot-config := 0 434 endif 435endif 436 437ifeq ($(KBUILD_EXTMOD),) 438 ifneq ($(filter config %config,$(MAKECMDGOALS)),) 439 config-targets := 1 440 ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) 441 mixed-targets := 1 442 endif 443 endif 444endif 445 446ifeq ($(mixed-targets),1) 447# =========================================================================== 448# We're called with mixed targets (*config and build targets). 449# Handle them one by one. 450 451PHONY += $(MAKECMDGOALS) __build_one_by_one 452 453$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one 454 @: 455 456__build_one_by_one: 457 $(Q)set -e; \ 458 for i in $(MAKECMDGOALS); do \ 459 $(MAKE) -f $(srctree)/Makefile $$i; \ 460 done 461 462else 463ifeq ($(config-targets),1) 464# =========================================================================== 465# *config targets only - make sure prerequisites are updated, and descend 466# in scripts/kconfig to make the *config target 467 468KBUILD_DEFCONFIG := sandbox_defconfig 469export KBUILD_DEFCONFIG KBUILD_KCONFIG 470 471config: scripts_basic outputmakefile FORCE 472 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 473 474%config: scripts_basic outputmakefile FORCE 475 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 476 477else 478# =========================================================================== 479# Build targets only - this includes vmlinux, arch specific targets, clean 480# targets and others. In general all targets except *config targets. 481 482ifeq ($(dot-config),1) 483# Read in config 484-include include/config/auto.conf 485 486# Read in dependencies to all Kconfig* files, make sure to run 487# oldconfig if changes are detected. 488-include include/config/auto.conf.cmd 489 490# To avoid any implicit rule to kick in, define an empty command 491$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; 492 493# If .config is newer than include/config/auto.conf, someone tinkered 494# with it and forgot to run make oldconfig. 495# if auto.conf.cmd is missing then we are probably in a cleaned tree so 496# we execute the config step to be sure to catch updated Kconfig files 497include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd 498 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig 499 @# If the following part fails, include/config/auto.conf should be 500 @# deleted so "make silentoldconfig" will be re-run on the next build. 501 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \ 502 { rm -f include/config/auto.conf; false; } 503 @# include/config.h has been updated after "make silentoldconfig". 504 @# We need to touch include/config/auto.conf so it gets newer 505 @# than include/config.h. 506 @# Otherwise, 'make silentoldconfig' would be invoked twice. 507 $(Q)touch include/config/auto.conf 508 509-include include/autoconf.mk 510-include include/autoconf.mk.dep 511 512# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf 513# is up-to-date. When we switch to a different board configuration, old CONFIG 514# macros are still remaining in include/config/auto.conf. Without the following 515# gimmick, wrong config.mk would be included leading nasty warnings/errors. 516ifneq ($(wildcard $(KCONFIG_CONFIG)),) 517ifneq ($(wildcard include/config/auto.conf),) 518autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \ 519 include/config/auto.conf) 520ifeq ($(autoconf_is_old),) 521include $(srctree)/config.mk 522include $(srctree)/arch/$(ARCH)/Makefile 523endif 524endif 525endif 526 527# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use 528# that (or fail if absent). Otherwise, search for a linker script in a 529# standard location. 530 531ifndef LDSCRIPT 532 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug 533 ifdef CONFIG_SYS_LDSCRIPT 534 # need to strip off double quotes 535 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%) 536 endif 537endif 538 539# If there is no specified link script, we look in a number of places for it 540ifndef LDSCRIPT 541 ifeq ($(wildcard $(LDSCRIPT)),) 542 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds 543 endif 544 ifeq ($(wildcard $(LDSCRIPT)),) 545 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds 546 endif 547 ifeq ($(wildcard $(LDSCRIPT)),) 548 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds 549 endif 550endif 551 552else 553# Dummy target needed, because used as prerequisite 554include/config/auto.conf: ; 555endif # $(dot-config) 556 557ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 558KBUILD_CFLAGS += -Os 559else 560KBUILD_CFLAGS += -O2 561endif 562 563ifdef BUILD_TAG 564KBUILD_CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"' 565endif 566 567KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 568 569KBUILD_CFLAGS += -g 570# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 571# option to the assembler. 572KBUILD_AFLAGS += -g 573 574# Report stack usage if supported 575ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y) 576 KBUILD_CFLAGS += -fstack-usage 577endif 578 579KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) 580 581# turn jbsr into jsr for m68k 582ifeq ($(ARCH),m68k) 583ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4) 584KBUILD_AFLAGS += -Wa,-gstabs,-S 585endif 586endif 587 588# Prohibit date/time macros, which would make the build non-deterministic 589KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 590 591ifneq ($(CONFIG_SYS_TEXT_BASE),) 592KBUILD_CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE) 593endif 594 595export CONFIG_SYS_TEXT_BASE 596 597include $(srctree)/scripts/Makefile.extrawarn 598 599# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 600KBUILD_CPPFLAGS += $(KCPPFLAGS) 601KBUILD_AFLAGS += $(KAFLAGS) 602KBUILD_CFLAGS += $(KCFLAGS) 603 604# Use UBOOTINCLUDE when you must reference the include/ directory. 605# Needed to be compatible with the O= option 606UBOOTINCLUDE := \ 607 -Iinclude \ 608 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 609 -I$(srctree)/arch/$(ARCH)/include \ 610 -include $(srctree)/include/linux/kconfig.h 611 612NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 613CHECKFLAGS += $(NOSTDINC_FLAGS) 614 615# FIX ME 616cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 617 $(NOSTDINC_FLAGS) 618c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 619 620######################################################################### 621# U-Boot objects....order is important (i.e. start must be first) 622 623HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 624 625libs-y += lib/ 626libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 627libs-$(CONFIG_OF_EMBED) += dts/ 628libs-y += fs/ 629libs-y += net/ 630libs-y += disk/ 631libs-y += drivers/ 632libs-y += drivers/dma/ 633libs-y += drivers/gpio/ 634libs-y += drivers/i2c/ 635libs-y += drivers/mmc/ 636libs-y += drivers/mtd/ 637libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/ 638libs-y += drivers/mtd/onenand/ 639libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/ 640libs-y += drivers/mtd/spi/ 641libs-y += drivers/net/ 642libs-y += drivers/net/phy/ 643libs-y += drivers/pci/ 644libs-y += drivers/power/ \ 645 drivers/power/fuel_gauge/ \ 646 drivers/power/mfd/ \ 647 drivers/power/pmic/ \ 648 drivers/power/battery/ 649libs-y += drivers/spi/ 650libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/ 651libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ 652libs-y += drivers/serial/ 653libs-y += drivers/usb/eth/ 654libs-y += drivers/usb/gadget/ 655libs-y += drivers/usb/host/ 656libs-y += drivers/usb/musb/ 657libs-y += drivers/usb/musb-new/ 658libs-y += drivers/usb/phy/ 659libs-y += drivers/usb/ulpi/ 660libs-y += common/ 661libs-$(CONFIG_API) += api/ 662libs-$(CONFIG_HAS_POST) += post/ 663libs-y += test/ 664libs-y += test/dm/ 665 666libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 667 668libs-y := $(sort $(libs-y)) 669 670u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 671 672u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 673 674libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 675 676u-boot-init := $(head-y) 677u-boot-main := $(libs-y) 678 679 680# Add GCC lib 681ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 682PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 683else 684PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 685endif 686PLATFORM_LIBS += $(PLATFORM_LIBGCC) 687export PLATFORM_LIBS 688export PLATFORM_LIBGCC 689 690# Special flags for CPP when processing the linker script. 691# Pass the version down so we can handle backwards compatibility 692# on the fly. 693LDPPFLAGS += \ 694 -include $(srctree)/include/u-boot/u-boot.lds.h \ 695 -DCPUDIR=$(CPUDIR) \ 696 $(shell $(LD) --version | \ 697 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 698 699######################################################################### 700######################################################################### 701 702ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 703BOARD_SIZE_CHECK = \ 704 @actual=`wc -c $@ | awk '{print $$1}'`; \ 705 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \ 706 if test $$actual -gt $$limit; then \ 707 echo "$@ exceeds file size limit:" >&2 ; \ 708 echo " limit: $$limit bytes" >&2 ; \ 709 echo " actual: $$actual bytes" >&2 ; \ 710 echo " excess: $$((actual - limit)) bytes" >&2; \ 711 exit 1; \ 712 fi 713else 714BOARD_SIZE_CHECK = 715endif 716 717# Statically apply RELA-style relocations (currently arm64 only) 718ifneq ($(CONFIG_STATIC_RELA),) 719# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base 720DO_STATIC_RELA = \ 721 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \ 722 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \ 723 tools/relocate-rela $(2) $(3) $$start $$end 724else 725DO_STATIC_RELA = 726endif 727 728# Always append ALL so that arch config.mk's can add custom ones 729ALL-y += u-boot.srec u-boot.bin System.map binary_size_check 730 731ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin 732ifeq ($(CONFIG_SPL_FSL_PBL),y) 733ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 734else 735ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 736endif 737ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin 738ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 739ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 740ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb u-boot-dtb.bin 741ifeq ($(CONFIG_SPL_FRAMEWORK),y) 742ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 743endif 744ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb 745ifneq ($(CONFIG_SPL_TARGET),) 746ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 747endif 748ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf 749 750ifneq ($(BUILD_ROM),) 751ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom 752endif 753 754# enable combined SPL/u-boot/dtb rules for tegra 755ifneq ($(CONFIG_TEGRA),) 756ifeq ($(CONFIG_SPL),y) 757ifeq ($(CONFIG_OF_SEPARATE),y) 758ALL-y += u-boot-dtb-tegra.bin 759else 760ALL-y += u-boot-nodtb-tegra.bin 761endif 762endif 763endif 764 765# Add optional build target if defined in board/cpu/soc headers 766ifneq ($(CONFIG_BUILD_TARGET),) 767ALL-y += $(CONFIG_BUILD_TARGET:"%"=%) 768endif 769 770LDFLAGS_u-boot += $(LDFLAGS_FINAL) 771ifneq ($(CONFIG_SYS_TEXT_BASE),) 772LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 773endif 774 775quiet_cmd_objcopy = OBJCOPY $@ 776cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 777 778quiet_cmd_mkimage = MKIMAGE $@ 779cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 780 $(if $(KBUILD_VERBOSE:1=), >/dev/null) 781 782quiet_cmd_cat = CAT $@ 783cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 784 785append = cat $(filter-out $< $(PHONY), $^) >> $@ 786 787quiet_cmd_pad_cat = CAT $@ 788cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@ 789 790all: $(ALL-y) 791ifneq ($(CONFIG_SYS_GENERIC_BOARD),y) 792 @echo "===================== WARNING ======================" 793 @echo "Please convert this board to generic board." 794 @echo "Otherwise it will be removed by the end of 2014." 795 @echo "See doc/README.generic-board for further information" 796 @echo "====================================================" 797endif 798ifeq ($(CONFIG_DM_I2C_COMPAT),y) 799 @echo "===================== WARNING ======================" 800 @echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove" 801 @echo "(possibly in a subsequent patch in your series)" 802 @echo "before sending patches to the mailing list." 803 @echo "====================================================" 804endif 805 806PHONY += dtbs 807dtbs dts/dt.dtb: checkdtc u-boot 808 $(Q)$(MAKE) $(build)=dts dtbs 809 810u-boot-dtb.bin: u-boot.bin dts/dt.dtb FORCE 811 $(call if_changed,cat) 812 813%.imx: %.bin 814 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 815 816quiet_cmd_copy = COPY $@ 817 cmd_copy = cp $< $@ 818 819u-boot.dtb: dts/dt.dtb 820 $(call cmd,copy) 821 822OBJCOPYFLAGS_u-boot.hex := -O ihex 823 824OBJCOPYFLAGS_u-boot.srec := -O srec 825 826u-boot.hex u-boot.srec: u-boot FORCE 827 $(call if_changed,objcopy) 828 829OBJCOPYFLAGS_u-boot.bin := -O binary \ 830 $(if $(CONFIG_X86_RESET_VECTOR),-R .start16 -R .resetvec) 831 832binary_size_check: u-boot.bin FORCE 833 @file_size=$(shell wc -c u-boot.bin | awk '{print $$1}') ; \ 834 map_size=$(shell cat u-boot.map | \ 835 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \ 836 | sed 's/0X//g' \ 837 | bc); \ 838 if [ "" != "$$map_size" ]; then \ 839 if test $$map_size -ne $$file_size; then \ 840 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ 841 echo " but u-boot.bin shows $$file_size" >&2 ; \ 842 exit 1; \ 843 fi \ 844 fi 845 846u-boot.bin: u-boot FORCE 847 $(call if_changed,objcopy) 848 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE)) 849 $(BOARD_SIZE_CHECK) 850 851u-boot.ldr: u-boot 852 $(CREATE_LDR_ENV) 853 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS) 854 $(BOARD_SIZE_CHECK) 855 856OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 857 858OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 859 860u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 861 $(call if_changed,objcopy) 862 863# 864# U-Boot entry point, needed for booting of full-blown U-Boot 865# from the SPL U-Boot version. 866# 867ifndef CONFIG_SYS_UBOOT_START 868CONFIG_SYS_UBOOT_START := 0 869endif 870 871MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 872 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 873 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 874 875MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 876 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 877 878MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 879 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 880 881MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 882 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 883 884u-boot.img u-boot.kwb u-boot.pbl: u-boot.bin FORCE 885 $(call if_changed,mkimage) 886 887u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE 888 $(call if_changed,mkimage) 889 890MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 891 892u-boot-dtb.img: u-boot-dtb.bin FORCE 893 $(call if_changed,mkimage) 894 895u-boot.sha1: u-boot.bin 896 tools/ubsha1 u-boot.bin 897 898u-boot.dis: u-boot 899 $(OBJDUMP) -d $< > $@ 900 901ifdef CONFIG_TPL 902SPL_PAYLOAD := tpl/u-boot-with-tpl.bin 903else 904SPL_PAYLOAD := u-boot.bin 905endif 906 907OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 908 --pad-to=$(CONFIG_SPL_PAD_TO) 909u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE 910 $(call if_changed,pad_cat) 911 912OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 913 --pad-to=$(CONFIG_TPL_PAD_TO) 914tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 915 $(call if_changed,pad_cat) 916 917SPL: spl/u-boot-spl.bin FORCE 918 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 919 920u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE 921 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 922 923MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE) 924 925u-boot.ubl: u-boot-with-spl.bin FORCE 926 $(call if_changed,mkimage) 927 928MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \ 929 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ 930 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 931spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 932 $(call if_changed,mkimage) 933 934OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 935u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 936 $(call if_changed,pad_cat) 937 938u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 939 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 940u-boot.sb: u-boot.bin spl/u-boot-spl.bin 941 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 942 943# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL. 944# Both images are created using mkimage (crc etc), so that the ROM 945# bootloader can check its integrity. Padding needs to be done to the 946# SPL image (with mkimage header) and not the binary. Otherwise the resulting image 947# which is loaded/copied by the ROM bootloader to SRAM doesn't fit. 948# The resulting image containing both U-Boot images is called u-boot.spr 949MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 950 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 951spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 952 $(call if_changed,mkimage) 953 954OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 955 --gap-fill=0xff 956u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE 957 $(call if_changed,pad_cat) 958 959MKIMAGEFLAGS_u-boot-spl.gph = -A $(ARCH) -T gpimage -C none \ 960 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n SPL 961spl/u-boot-spl.gph: spl/u-boot-spl.bin FORCE 962 $(call if_changed,mkimage) 963 964OBJCOPYFLAGS_u-boot-spi.gph = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 965 --gap-fill=0 966u-boot-spi.gph: spl/u-boot-spl.gph u-boot.img FORCE 967 $(call if_changed,pad_cat) 968 969MKIMAGEFLAGS_u-boot-nand.gph = -A $(ARCH) -T gpimage -C none \ 970 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) -n U-Boot 971u-boot-nand.gph: u-boot.bin FORCE 972 $(call if_changed,mkimage) 973 @dd if=/dev/zero bs=8 count=1 2>/dev/null >> $@ 974 975# x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including 976# reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in 977# the middle. 978ifneq ($(CONFIG_X86_RESET_VECTOR),) 979rom: u-boot.rom FORCE 980 981IFDTOOL=$(objtree)/tools/ifdtool 982IFDTOOL_FLAGS = -f 0:$(objtree)/u-boot.dtb 983IFDTOOL_FLAGS += -m 0x$(shell $(NM) u-boot |grep _dt_ucode_base_size |cut -d' ' -f1) 984IFDTOOL_FLAGS += -U $(CONFIG_SYS_TEXT_BASE):$(objtree)/u-boot.bin 985IFDTOOL_FLAGS += -w $(CONFIG_SYS_X86_START16):$(objtree)/u-boot-x86-16bit.bin 986 987ifneq ($(CONFIG_HAVE_INTEL_ME),) 988IFDTOOL_ME_FLAGS = -D $(srctree)/board/$(BOARDDIR)/descriptor.bin 989IFDTOOL_ME_FLAGS += -i ME:$(srctree)/board/$(BOARDDIR)/me.bin 990endif 991 992ifneq ($(CONFIG_HAVE_MRC),) 993IFDTOOL_FLAGS += -w $(CONFIG_X86_MRC_ADDR):$(srctree)/board/$(BOARDDIR)/mrc.bin 994endif 995 996ifneq ($(CONFIG_HAVE_FSP),) 997IFDTOOL_FLAGS += -w $(CONFIG_FSP_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_FSP_FILE) 998endif 999 1000ifneq ($(CONFIG_HAVE_CMC),) 1001IFDTOOL_FLAGS += -w $(CONFIG_CMC_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_CMC_FILE) 1002endif 1003 1004ifneq ($(CONFIG_X86_OPTION_ROM_ADDR),) 1005IFDTOOL_FLAGS += -w $(CONFIG_X86_OPTION_ROM_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_X86_OPTION_ROM_FILE) 1006endif 1007 1008quiet_cmd_ifdtool = IFDTOOL $@ 1009cmd_ifdtool = $(IFDTOOL) -c -r $(CONFIG_ROM_SIZE) u-boot.tmp; 1010ifneq ($(CONFIG_HAVE_INTEL_ME),) 1011cmd_ifdtool += $(IFDTOOL) $(IFDTOOL_ME_FLAGS) u-boot.tmp; 1012endif 1013cmd_ifdtool += $(IFDTOOL) $(IFDTOOL_FLAGS) u-boot.tmp; 1014cmd_ifdtool += mv u-boot.tmp $@ 1015 1016u-boot.rom: u-boot-x86-16bit.bin u-boot-dtb.bin 1017 $(call if_changed,ifdtool) 1018 1019OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec 1020u-boot-x86-16bit.bin: u-boot FORCE 1021 $(call if_changed,objcopy) 1022endif 1023 1024ifneq ($(CONFIG_SUNXI),) 1025OBJCOPYFLAGS_u-boot-sunxi-with-spl.bin = -I binary -O binary \ 1026 --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff 1027u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin \ 1028 u-boot$(if $(CONFIG_OF_CONTROL),-dtb,).img FORCE 1029 $(call if_changed,pad_cat) 1030endif 1031 1032ifneq ($(CONFIG_TEGRA),) 1033OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 1034u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot.bin FORCE 1035 $(call if_changed,pad_cat) 1036 1037ifeq ($(CONFIG_OF_SEPARATE),y) 1038u-boot-dtb-tegra.bin: u-boot-nodtb-tegra.bin dts/dt.dtb FORCE 1039 $(call if_changed,cat) 1040endif 1041endif 1042 1043u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 1044 $(call if_changed,cat) 1045 1046#Add a target to create boot binary having SPL binary in PBI format 1047#concatenated with u-boot binary. It is need by PowerPC SoC having 1048#internal SRAM <= 512KB. 1049MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1050 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \ 1051 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE) 1052 1053spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 1054 $(call if_changed,mkimage) 1055 1056ifeq ($(ARCH),arm) 1057UBOOT_BINLOAD := u-boot.img 1058else 1059UBOOT_BINLOAD := u-boot.bin 1060endif 1061 1062OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1063 --gap-fill=0xff 1064 1065u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE 1066 $(call if_changed,pad_cat) 1067 1068# PPC4xx needs the SPL at the end of the image, since the reset vector 1069# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target 1070# and need to introduce a new build target with the full blown U-Boot 1071# at the start padded up to the start of the SPL image. And then concat 1072# the SPL image to the end. 1073 1074OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ 1075 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff 1076u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE 1077 $(call if_changed,pad_cat) 1078 1079# Create a new ELF from a raw binary file. This is useful for arm64 1080# where static relocation needs to be performed on the raw binary, 1081# but certain simulators only accept an ELF file (but don't do the 1082# relocation). 1083# FIXME refactor dts/Makefile to share target/arch detection 1084u-boot.elf: u-boot.bin 1085 @$(OBJCOPY) -B aarch64 -I binary -O elf64-littleaarch64 \ 1086 $< u-boot-elf.o 1087 @$(LD) u-boot-elf.o -o $@ \ 1088 --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \ 1089 -Ttext=$(CONFIG_SYS_TEXT_BASE) 1090 1091# Rule to link u-boot 1092# May be overridden by arch/$(ARCH)/config.mk 1093quiet_cmd_u-boot__ ?= LD $@ 1094 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1095 -T u-boot.lds $(u-boot-init) \ 1096 --start-group $(u-boot-main) --end-group \ 1097 $(PLATFORM_LIBS) -Map u-boot.map 1098 1099quiet_cmd_smap = GEN common/system_map.o 1100cmd_smap = \ 1101 smap=`$(call SYSTEM_MAP,u-boot) | \ 1102 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1103 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1104 -c $(srctree)/common/system_map.c -o common/system_map.o 1105 1106u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds 1107 $(call if_changed,u-boot__) 1108ifeq ($(CONFIG_KALLSYMS),y) 1109 $(call cmd,smap) 1110 $(call cmd,u-boot__) common/system_map.o 1111endif 1112 1113# The actual objects are generated when descending, 1114# make sure no implicit rule kicks in 1115$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1116 1117# Handle descending into subdirectories listed in $(vmlinux-dirs) 1118# Preset locale variables to speed up the build process. Limit locale 1119# tweaks to this spot to avoid wrong language settings when running 1120# make menuconfig etc. 1121# Error messages still appears in the original language 1122 1123PHONY += $(u-boot-dirs) 1124$(u-boot-dirs): prepare scripts 1125 $(Q)$(MAKE) $(build)=$@ 1126 1127tools: prepare 1128# The "tools" are needed early 1129$(filter-out tools, $(u-boot-dirs)): tools 1130# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1131# is "yes"), so compile examples after U-Boot is compiled. 1132examples: $(filter-out examples, $(u-boot-dirs)) 1133 1134define filechk_uboot.release 1135 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1136endef 1137 1138# Store (new) UBOOTRELEASE string in include/config/uboot.release 1139include/config/uboot.release: include/config/auto.conf FORCE 1140 $(call filechk,uboot.release) 1141 1142 1143# Things we need to do before we recursively start building the kernel 1144# or the modules are listed in "prepare". 1145# A multi level approach is used. prepareN is processed before prepareN-1. 1146# archprepare is used in arch Makefiles and when processed asm symlink, 1147# version.h and scripts_basic is processed / created. 1148 1149# Listed in dependency order 1150PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1151 1152# prepare3 is used to check if we are building in a separate output directory, 1153# and if so do: 1154# 1) Check that make has not been executed in the kernel src $(srctree) 1155prepare3: include/config/uboot.release 1156ifneq ($(KBUILD_SRC),) 1157 @$(kecho) ' Using $(srctree) as source for U-Boot' 1158 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 1159 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1160 echo >&2 " in the '$(srctree)' directory.";\ 1161 /bin/false; \ 1162 fi; 1163endif 1164 1165# prepare2 creates a makefile if using a separate output directory 1166prepare2: prepare3 outputmakefile 1167 1168prepare1: prepare2 $(version_h) $(timestamp_h) \ 1169 include/config/auto.conf 1170ifeq ($(CONFIG_HAVE_GENERIC_BOARD),) 1171ifeq ($(CONFIG_SYS_GENERIC_BOARD),y) 1172 @echo >&2 " Your architecture does not support generic board." 1173 @echo >&2 " Please undefine CONFIG_SYS_GENERIC_BOARD in your board config file." 1174 @/bin/false 1175endif 1176endif 1177ifeq ($(wildcard $(LDSCRIPT)),) 1178 @echo >&2 " Could not find linker script." 1179 @/bin/false 1180endif 1181 1182archprepare: prepare1 scripts_basic 1183 1184prepare0: archprepare FORCE 1185 $(Q)$(MAKE) $(build)=. 1186 1187# All the preparing.. 1188prepare: prepare0 1189 1190# Generate some files 1191# --------------------------------------------------------------------------- 1192 1193define filechk_version.h 1194 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1195 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1196 echo \#define CC_VERSION_STRING \"$$($(CC) --version | head -n 1)\"; \ 1197 echo \#define LD_VERSION_STRING \"$$($(LD) --version | head -n 1)\"; ) 1198endef 1199 1200define filechk_timestamp.h 1201 (LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1202 LC_ALL=C date +'#define U_BOOT_TIME "%T"') 1203endef 1204 1205$(version_h): include/config/uboot.release FORCE 1206 $(call filechk,version.h) 1207 1208$(timestamp_h): $(srctree)/Makefile FORCE 1209 $(call filechk,timestamp.h) 1210 1211# --------------------------------------------------------------------------- 1212 1213PHONY += depend dep 1214depend dep: 1215 @echo '*** Warning: make $@ is unnecessary now.' 1216 1217# --------------------------------------------------------------------------- 1218quiet_cmd_cpp_lds = LDS $@ 1219cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 1220 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 1221 1222u-boot.lds: $(LDSCRIPT) prepare FORCE 1223 $(call if_changed_dep,cpp_lds) 1224 1225spl/u-boot-spl.bin: spl/u-boot-spl 1226 @: 1227spl/u-boot-spl: tools prepare 1228 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all 1229 1230spl/sunxi-spl.bin: spl/u-boot-spl 1231 @: 1232 1233tpl/u-boot-tpl.bin: tools prepare 1234 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all 1235 1236TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) 1237 1238FIND := find 1239FINDFLAGS := -L 1240 1241tags ctags: 1242 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1243 -name '*.[chS]' -print` 1244 1245etags: 1246 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1247 -name '*.[chS]' -print` 1248cscope: 1249 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 1250 cscope.files 1251 cscope -b -q -k 1252 1253SYSTEM_MAP = \ 1254 $(NM) $1 | \ 1255 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 1256 LC_ALL=C sort 1257System.map: u-boot 1258 @$(call SYSTEM_MAP,$<) > $@ 1259 1260checkdtc: 1261 @if test $(call dtc-version) -lt 0104; then \ 1262 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \ 1263 false; \ 1264 fi 1265 1266######################################################################### 1267 1268# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 1269# R_AARCH64_RELATIVE (64-bit). 1270checkarmreloc: u-boot 1271 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 1272 grep R_A | sort -u`"; \ 1273 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 1274 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 1275 echo "$< contains unexpected relocations: $$RELOC"; \ 1276 false; \ 1277 fi 1278 1279env: scripts_basic 1280 $(Q)$(MAKE) $(build)=tools/$@ 1281 1282tools-only: scripts_basic $(version_h) $(timestamp_h) 1283 $(Q)$(MAKE) $(build)=tools 1284 1285tools-all: export HOST_TOOLS_ALL=y 1286tools-all: env tools ; 1287 1288cross_tools: export CROSS_BUILD_TOOLS=y 1289cross_tools: tools ; 1290 1291.PHONY : CHANGELOG 1292CHANGELOG: 1293 git log --no-merges U-Boot-1_1_5.. | \ 1294 unexpand -a | sed -e 's/\s\s*$$//' > $@ 1295 1296include/license.h: tools/bin2header COPYING 1297 cat COPYING | gzip -9 -c | ./tools/bin2header license_gzip > include/license.h 1298######################################################################### 1299 1300### 1301# Cleaning is done on three levels. 1302# make clean Delete most generated files 1303# Leave enough to build external modules 1304# make mrproper Delete the current configuration, and all generated files 1305# make distclean Remove editor backup files, patch leftover files and the like 1306 1307# Directories & files removed with 'make clean' 1308CLEAN_DIRS += $(MODVERDIR) \ 1309 $(foreach d, spl tpl, $(patsubst %,$d/%, \ 1310 $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) 1311 1312CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \ 1313 boot* u-boot* MLO* SPL System.map 1314 1315# Directories & files removed with 'make mrproper' 1316MRPROPER_DIRS += include/config include/generated spl tpl \ 1317 .tmp_objdiff 1318MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ 1319 ctags etags TAGS cscope* GPATH GTAGS GRTAGS GSYMS 1320 1321# clean - Delete most, but leave enough to build external modules 1322# 1323clean: rm-dirs := $(CLEAN_DIRS) 1324clean: rm-files := $(CLEAN_FILES) 1325 1326clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 1327 1328clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook) 1329 1330PHONY += $(clean-dirs) clean archclean 1331$(clean-dirs): 1332 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1333 1334# TODO: Do not use *.cfgtmp 1335clean: $(clean-dirs) 1336 $(call cmd,rmdirs) 1337 $(call cmd,rmfiles) 1338 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1339 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 1340 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \ 1341 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 1342 -o -name '*.symtypes' -o -name 'modules.order' \ 1343 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 1344 -o -name '*.gcno' \) -type f -print | xargs rm -f 1345 1346# mrproper - Delete all generated files, including .config 1347# 1348mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 1349mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 1350mrproper-dirs := $(addprefix _mrproper_,scripts) 1351 1352PHONY += $(mrproper-dirs) mrproper archmrproper 1353$(mrproper-dirs): 1354 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 1355 1356mrproper: clean $(mrproper-dirs) 1357 $(call cmd,rmdirs) 1358 $(call cmd,rmfiles) 1359 @rm -f arch/*/include/asm/arch 1360 1361# distclean 1362# 1363PHONY += distclean 1364 1365distclean: mrproper 1366 @find $(srctree) $(RCS_FIND_IGNORE) \ 1367 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 1368 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 1369 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 1370 -o -name '*.pyc' \) \ 1371 -type f -print | xargs rm -f 1372 @rm -f boards.cfg 1373 1374backup: 1375 F=`basename $(srctree)` ; cd .. ; \ 1376 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 1377 1378help: 1379 @echo 'Cleaning targets:' 1380 @echo ' clean - Remove most generated files but keep the config' 1381 @echo ' mrproper - Remove all generated files + config + various backup files' 1382 @echo ' distclean - mrproper + remove editor backup and patch files' 1383 @echo '' 1384 @echo 'Configuration targets:' 1385 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 1386 @echo '' 1387 @echo 'Other generic targets:' 1388 @echo ' all - Build all necessary images depending on configuration' 1389 @echo '* u-boot - Build the bare u-boot' 1390 @echo ' dir/ - Build all files in dir and below' 1391 @echo ' dir/file.[oisS] - Build specified target only' 1392 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 1393 @echo ' (requires a recent binutils and recent build (System.map))' 1394 @echo ' tags/ctags - Generate ctags file for editors' 1395 @echo ' etags - Generate etags file for editors' 1396 @echo ' cscope - Generate cscope index' 1397 @echo ' ubootrelease - Output the release version string (use with make -s)' 1398 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)' 1399 @echo '' 1400 @echo 'Static analysers' 1401 @echo ' checkstack - Generate a list of stack hogs' 1402 @echo '' 1403 @echo 'Documentation targets:' 1404 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp 1405 @echo '' 1406 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 1407 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 1408 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 1409 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 1410 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 1411 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 1412 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 1413 @echo ' 1: warnings which may be relevant and do not occur too often' 1414 @echo ' 2: warnings which occur quite often but may still be relevant' 1415 @echo ' 3: more obscure warnings, can most likely be ignored' 1416 @echo ' Multiple levels can be combined with W=12 or W=123' 1417 @echo '' 1418 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 1419 @echo 'For further info see the ./README file' 1420 1421 1422# Documentation targets 1423# --------------------------------------------------------------------------- 1424%docs: scripts_basic FORCE 1425 $(Q)$(MAKE) $(build)=scripts build_docproc 1426 $(Q)$(MAKE) $(build)=doc/DocBook $@ 1427 1428# Dummies... 1429PHONY += prepare scripts 1430prepare: ; 1431scripts: ; 1432 1433endif #ifeq ($(config-targets),1) 1434endif #ifeq ($(mixed-targets),1) 1435 1436PHONY += checkstack ubootrelease ubootversion 1437 1438checkstack: 1439 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 1440 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 1441 1442ubootrelease: 1443 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1444 1445ubootversion: 1446 @echo $(UBOOTVERSION) 1447 1448# Single targets 1449# --------------------------------------------------------------------------- 1450# Single targets are compatible with: 1451# - build with mixed source and output 1452# - build with separate output dir 'make O=...' 1453# - external modules 1454# 1455# target-dir => where to store outputfile 1456# build-dir => directory in kernel source tree to use 1457 1458ifeq ($(KBUILD_EXTMOD),) 1459 build-dir = $(patsubst %/,%,$(dir $@)) 1460 target-dir = $(dir $@) 1461else 1462 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 1463 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 1464 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 1465endif 1466 1467%.s: %.c prepare scripts FORCE 1468 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1469%.i: %.c prepare scripts FORCE 1470 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1471%.o: %.c prepare scripts FORCE 1472 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1473%.lst: %.c prepare scripts FORCE 1474 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1475%.s: %.S prepare scripts FORCE 1476 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1477%.o: %.S prepare scripts FORCE 1478 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1479%.symtypes: %.c prepare scripts FORCE 1480 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1481 1482# Modules 1483/: prepare scripts FORCE 1484 $(cmd_crmodverdir) 1485 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1486 $(build)=$(build-dir) 1487%/: prepare scripts FORCE 1488 $(cmd_crmodverdir) 1489 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1490 $(build)=$(build-dir) 1491%.ko: prepare scripts FORCE 1492 $(cmd_crmodverdir) 1493 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1494 $(build)=$(build-dir) $(@:.ko=.o) 1495 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1496 1497# FIXME Should go into a make.lib or something 1498# =========================================================================== 1499 1500quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 1501 cmd_rmdirs = rm -rf $(rm-dirs) 1502 1503quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 1504 cmd_rmfiles = rm -f $(rm-files) 1505 1506# read all saved command lines 1507 1508targets := $(wildcard $(sort $(targets))) 1509cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 1510 1511ifneq ($(cmd_files),) 1512 $(cmd_files): ; # Do not try to update included dependency files 1513 include $(cmd_files) 1514endif 1515 1516# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir 1517# Usage: 1518# $(Q)$(MAKE) $(clean)=dir 1519clean := -f $(srctree)/scripts/Makefile.clean obj 1520 1521endif # skip-makefile 1522 1523PHONY += FORCE 1524FORCE: 1525 1526# Declare the contents of the .PHONY variable as phony. We keep that 1527# information in a variable so we can use it in if_changed and friends. 1528.PHONY: $(PHONY) 1529