1# 2# (C) Copyright 2000-2013 3# Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4# 5# SPDX-License-Identifier: GPL-2.0+ 6# 7 8VERSION = 2014 9PATCHLEVEL = 10 10SUBLEVEL = 11EXTRAVERSION = -rc1 12NAME = 13 14# *DOCUMENTATION* 15# To see a list of typical targets execute "make help" 16# More info can be located in ./README 17# Comments in this file are targeted only to the developer, do not 18# expect to learn how to build the kernel reading this file. 19 20# Do not: 21# o use make's built-in rules and variables 22# (this increases performance and avoids hard-to-debug behaviour); 23# o print "Entering directory ..."; 24MAKEFLAGS += -rR --no-print-directory 25 26# Avoid funny character set dependencies 27unexport LC_ALL 28LC_COLLATE=C 29LC_NUMERIC=C 30export LC_COLLATE LC_NUMERIC 31 32# We are using a recursive build, so we need to do a little thinking 33# to get the ordering right. 34# 35# Most importantly: sub-Makefiles should only ever modify files in 36# their own directory. If in some directory we have a dependency on 37# a file in another dir (which doesn't happen often, but it's often 38# unavoidable when linking the built-in.o targets which finally 39# turn into vmlinux), we will call a sub make in that other dir, and 40# after that we are sure that everything which is in that other dir 41# is now up to date. 42# 43# The only cases where we need to modify files which have global 44# effects are thus separated out and done before the recursive 45# descending is started. They are now explicitly listed as the 46# prepare rule. 47 48# To put more focus on warnings, be less verbose as default 49# Use 'make V=1' to see the full commands 50 51ifeq ("$(origin V)", "command line") 52 KBUILD_VERBOSE = $(V) 53endif 54ifndef KBUILD_VERBOSE 55 KBUILD_VERBOSE = 0 56endif 57 58# Call a source code checker (by default, "sparse") as part of the 59# C compilation. 60# 61# Use 'make C=1' to enable checking of only re-compiled files. 62# Use 'make C=2' to enable checking of *all* source files, regardless 63# of whether they are re-compiled or not. 64# 65# See the file "Documentation/sparse.txt" for more details, including 66# where to get the "sparse" utility. 67 68ifeq ("$(origin C)", "command line") 69 KBUILD_CHECKSRC = $(C) 70endif 71ifndef KBUILD_CHECKSRC 72 KBUILD_CHECKSRC = 0 73endif 74 75# Use make M=dir to specify directory of external module to build 76# Old syntax make ... SUBDIRS=$PWD is still supported 77# Setting the environment variable KBUILD_EXTMOD take precedence 78ifdef SUBDIRS 79 KBUILD_EXTMOD ?= $(SUBDIRS) 80endif 81 82ifeq ("$(origin M)", "command line") 83 KBUILD_EXTMOD := $(M) 84endif 85 86# kbuild supports saving output files in a separate directory. 87# To locate output files in a separate directory two syntaxes are supported. 88# In both cases the working directory must be the root of the kernel src. 89# 1) O= 90# Use "make O=dir/to/store/output/files/" 91# 92# 2) Set KBUILD_OUTPUT 93# Set the environment variable KBUILD_OUTPUT to point to the directory 94# where the output files shall be placed. 95# export KBUILD_OUTPUT=dir/to/store/output/files/ 96# make 97# 98# The O= assignment takes precedence over the KBUILD_OUTPUT environment 99# variable. 100 101 102# KBUILD_SRC is set on invocation of make in OBJ directory 103# KBUILD_SRC is not intended to be used by the regular user (for now) 104ifeq ($(KBUILD_SRC),) 105 106# OK, Make called in directory where kernel src resides 107# Do we want to locate output files in a separate directory? 108ifeq ("$(origin O)", "command line") 109 KBUILD_OUTPUT := $(O) 110endif 111 112ifeq ("$(origin W)", "command line") 113 export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W) 114endif 115 116# That's our default target when none is given on the command line 117PHONY := _all 118_all: 119 120# Cancel implicit rules on top Makefile 121$(CURDIR)/Makefile Makefile: ; 122 123ifneq ($(KBUILD_OUTPUT),) 124# Invoke a second make in the output directory, passing relevant variables 125# check that the output directory actually exists 126saved-output := $(KBUILD_OUTPUT) 127KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \ 128 && /bin/pwd) 129$(if $(KBUILD_OUTPUT),, \ 130 $(error failed to create output directory "$(saved-output)")) 131 132PHONY += $(MAKECMDGOALS) sub-make 133 134$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make 135 @: 136 137sub-make: FORCE 138 $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \ 139 KBUILD_SRC=$(CURDIR) \ 140 KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \ 141 $(filter-out _all sub-make,$(MAKECMDGOALS)) 142 143# Leave processing to above invocation of make 144skip-makefile := 1 145endif # ifneq ($(KBUILD_OUTPUT),) 146endif # ifeq ($(KBUILD_SRC),) 147 148# We process the rest of the Makefile if this is the final invocation of make 149ifeq ($(skip-makefile),) 150 151# If building an external module we do not care about the all: rule 152# but instead _all depend on modules 153PHONY += all 154ifeq ($(KBUILD_EXTMOD),) 155_all: all 156else 157_all: modules 158endif 159 160srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR)) 161objtree := $(CURDIR) 162src := $(srctree) 163obj := $(objtree) 164 165VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) 166 167export srctree objtree VPATH 168 169# Make sure CDPATH settings don't interfere 170unexport CDPATH 171 172######################################################################### 173 174HOSTARCH := $(shell uname -m | \ 175 sed -e s/i.86/x86/ \ 176 -e s/sun4u/sparc64/ \ 177 -e s/arm.*/arm/ \ 178 -e s/sa110/arm/ \ 179 -e s/ppc64/powerpc/ \ 180 -e s/ppc/powerpc/ \ 181 -e s/macppc/powerpc/\ 182 -e s/sh.*/sh/) 183 184HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \ 185 sed -e 's/\(cygwin\).*/cygwin/') 186 187export HOSTARCH HOSTOS 188 189######################################################################### 190 191# set default to nothing for native builds 192ifeq ($(HOSTARCH),$(ARCH)) 193CROSS_COMPILE ?= 194endif 195 196KCONFIG_CONFIG ?= .config 197export KCONFIG_CONFIG 198 199# SHELL used by kbuild 200CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ 201 else if [ -x /bin/bash ]; then echo /bin/bash; \ 202 else echo sh; fi ; fi) 203 204HOSTCC = gcc 205HOSTCXX = g++ 206HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer 207HOSTCXXFLAGS = -O2 208 209ifeq ($(HOSTOS),cygwin) 210HOSTCFLAGS += -ansi 211endif 212 213# Mac OS X / Darwin's C preprocessor is Apple specific. It 214# generates numerous errors and warnings. We want to bypass it 215# and use GNU C's cpp. To do this we pass the -traditional-cpp 216# option to the compiler. Note that the -traditional-cpp flag 217# DOES NOT have the same semantics as GNU C's flag, all it does 218# is invoke the GNU preprocessor in stock ANSI/ISO C fashion. 219# 220# Apple's linker is similar, thanks to the new 2 stage linking 221# multiple symbol definitions are treated as errors, hence the 222# -multiply_defined suppress option to turn off this error. 223# 224ifeq ($(HOSTOS),darwin) 225# get major and minor product version (e.g. '10' and '6' for Snow Leopard) 226DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.') 227DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.') 228 229os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \ 230 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;) 231 232# Snow Leopards build environment has no longer restrictions as described above 233HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc") 234HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp") 235HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress") 236endif 237 238# Decide whether to build built-in, modular, or both. 239# Normally, just do built-in. 240 241KBUILD_MODULES := 242KBUILD_BUILTIN := 1 243 244# If we have only "make modules", don't compile built-in objects. 245# When we're building modules with modversions, we need to consider 246# the built-in objects during the descend as well, in order to 247# make sure the checksums are up to date before we record them. 248 249ifeq ($(MAKECMDGOALS),modules) 250 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) 251endif 252 253# If we have "make <whatever> modules", compile modules 254# in addition to whatever we do anyway. 255# Just "make" or "make all" shall build modules as well 256 257# U-Boot does not need modules 258#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) 259# KBUILD_MODULES := 1 260#endif 261 262#ifeq ($(MAKECMDGOALS),) 263# KBUILD_MODULES := 1 264#endif 265 266export KBUILD_MODULES KBUILD_BUILTIN 267export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD 268 269# Beautify output 270# --------------------------------------------------------------------------- 271# 272# Normally, we echo the whole command before executing it. By making 273# that echo $($(quiet)$(cmd)), we now have the possibility to set 274# $(quiet) to choose other forms of output instead, e.g. 275# 276# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ 277# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< 278# 279# If $(quiet) is empty, the whole command will be printed. 280# If it is set to "quiet_", only the short version will be printed. 281# If it is set to "silent_", nothing will be printed at all, since 282# the variable $(silent_cmd_cc_o_c) doesn't exist. 283# 284# A simple variant is to prefix commands with $(Q) - that's useful 285# for commands that shall be hidden in non-verbose mode. 286# 287# $(Q)ln $@ :< 288# 289# If KBUILD_VERBOSE equals 0 then the above command will be hidden. 290# If KBUILD_VERBOSE equals 1 then the above command is displayed. 291 292ifeq ($(KBUILD_VERBOSE),1) 293 quiet = 294 Q = 295else 296 quiet=quiet_ 297 Q = @ 298endif 299 300# If the user is running make -s (silent mode), suppress echoing of 301# commands 302 303ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4 304ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),) 305 quiet=silent_ 306endif 307else # make-3.8x 308ifneq ($(filter s% -s%,$(MAKEFLAGS)),) 309 quiet=silent_ 310endif 311endif 312 313export quiet Q KBUILD_VERBOSE 314 315# Look for make include files relative to root of kernel src 316MAKEFLAGS += --include-dir=$(srctree) 317 318# We need some generic definitions (do not try to remake the file). 319$(srctree)/scripts/Kbuild.include: ; 320include $(srctree)/scripts/Kbuild.include 321 322# Make variables (CC, etc...) 323 324AS = $(CROSS_COMPILE)as 325# Always use GNU ld 326ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),) 327LD = $(CROSS_COMPILE)ld.bfd 328else 329LD = $(CROSS_COMPILE)ld 330endif 331CC = $(CROSS_COMPILE)gcc 332CPP = $(CC) -E 333AR = $(CROSS_COMPILE)ar 334NM = $(CROSS_COMPILE)nm 335LDR = $(CROSS_COMPILE)ldr 336STRIP = $(CROSS_COMPILE)strip 337OBJCOPY = $(CROSS_COMPILE)objcopy 338OBJDUMP = $(CROSS_COMPILE)objdump 339AWK = awk 340PERL = perl 341PYTHON = python 342DTC = dtc 343CHECK = sparse 344 345CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ 346 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF) 347 348KBUILD_CPPFLAGS := -D__KERNEL__ 349 350KBUILD_CFLAGS := -Wall -Wstrict-prototypes \ 351 -Wno-format-security \ 352 -fno-builtin -ffreestanding 353KBUILD_AFLAGS := -D__ASSEMBLY__ 354 355# Read UBOOTRELEASE from include/config/uboot.release (if it exists) 356UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null) 357UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) 358 359export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION 360export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR 361export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC 362export CPP AR NM LDR STRIP OBJCOPY OBJDUMP 363export MAKE AWK PERL PYTHON 364export HOSTCXX HOSTCXXFLAGS DTC CHECK CHECKFLAGS 365 366export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS 367export KBUILD_CFLAGS KBUILD_AFLAGS 368 369# When compiling out-of-tree modules, put MODVERDIR in the module 370# tree rather than in the kernel tree. The kernel tree might 371# even be read-only. 372export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions 373 374# Files to ignore in find ... statements 375 376export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ 377 -name CVS -o -name .pc -o -name .hg -o -name .git \) \ 378 -prune -o 379export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ 380 --exclude CVS --exclude .pc --exclude .hg --exclude .git 381 382# =========================================================================== 383# Rules shared between *config targets and build targets 384 385# Basic helpers built in scripts/ 386PHONY += scripts_basic 387scripts_basic: 388 $(Q)$(MAKE) $(build)=scripts/basic 389 $(Q)rm -f .tmp_quiet_recordmcount 390 391# To avoid any implicit rule to kick in, define an empty command. 392scripts/basic/%: scripts_basic ; 393 394PHONY += outputmakefile 395# outputmakefile generates a Makefile in the output directory, if using a 396# separate output directory. This allows convenient use of make in the 397# output directory. 398outputmakefile: 399ifneq ($(KBUILD_SRC),) 400 $(Q)ln -fsn $(srctree) source 401 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ 402 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) 403endif 404 405# To make sure we do not include .config for any of the *config targets 406# catch them early, and hand them over to scripts/kconfig/Makefile 407# It is allowed to specify more targets when calling make, including 408# mixing *config targets and build targets. 409# For example 'make oldconfig all'. 410# Detect when mixed targets is specified, and make a second invocation 411# of make so .config is not included in this case either (for *config). 412 413version_h := include/generated/version_autogenerated.h 414timestamp_h := include/generated/timestamp_autogenerated.h 415 416no-dot-config-targets := clean clobber mrproper distclean \ 417 help %docs check% coccicheck \ 418 ubootversion backup tools-only 419 420config-targets := 0 421mixed-targets := 0 422dot-config := 1 423 424ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) 425 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) 426 dot-config := 0 427 endif 428endif 429 430ifeq ($(KBUILD_EXTMOD),) 431 ifneq ($(filter config %config,$(MAKECMDGOALS)),) 432 config-targets := 1 433 ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) 434 mixed-targets := 1 435 endif 436 endif 437endif 438 439ifeq ($(mixed-targets),1) 440# =========================================================================== 441# We're called with mixed targets (*config and build targets). 442# Handle them one by one. 443 444PHONY += $(MAKECMDGOALS) build-one-by-one 445 446$(MAKECMDGOALS): build-one-by-one 447 @: 448 449build-one-by-one: 450 $(Q)set -e; \ 451 for i in $(MAKECMDGOALS); do \ 452 $(MAKE) -f $(srctree)/Makefile $$i; \ 453 done 454 455else 456ifeq ($(config-targets),1) 457# =========================================================================== 458# *config targets only - make sure prerequisites are updated, and descend 459# in scripts/kconfig to make the *config target 460 461KBUILD_DEFCONFIG := sandbox_defconfig 462export KBUILD_DEFCONFIG KBUILD_KCONFIG 463 464config: scripts_basic outputmakefile FORCE 465 +$(Q)$(PYTHON) $(srctree)/scripts/multiconfig.py $@ 466 467%config: scripts_basic outputmakefile FORCE 468 +$(Q)$(PYTHON) $(srctree)/scripts/multiconfig.py $@ 469 470else 471# =========================================================================== 472# Build targets only - this includes vmlinux, arch specific targets, clean 473# targets and others. In general all targets except *config targets. 474 475ifeq ($(dot-config),1) 476# Read in config 477-include include/config/auto.conf 478 479# Read in dependencies to all Kconfig* files, make sure to run 480# oldconfig if changes are detected. 481-include include/config/auto.conf.cmd 482 483# To avoid any implicit rule to kick in, define an empty command 484$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; 485 486# If .config is newer than include/config/auto.conf, someone tinkered 487# with it and forgot to run make oldconfig. 488# if auto.conf.cmd is missing then we are probably in a cleaned tree so 489# we execute the config step to be sure to catch updated Kconfig files 490include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd 491 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig 492 493-include include/autoconf.mk 494-include include/autoconf.mk.dep 495 496# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf 497# is up-to-date. When we switch to a different board configuration, old CONFIG 498# macros are still remaining in include/config/auto.conf. Without the following 499# gimmick, wrong config.mk would be included leading nasty warnings/errors. 500autoconf_is_current := $(if $(wildcard $(KCONFIG_CONFIG)),$(shell find . \ 501 -path ./include/config/auto.conf -newer $(KCONFIG_CONFIG))) 502ifneq ($(autoconf_is_current),) 503include $(srctree)/config.mk 504endif 505 506# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use 507# that (or fail if absent). Otherwise, search for a linker script in a 508# standard location. 509 510ifndef LDSCRIPT 511 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug 512 ifdef CONFIG_SYS_LDSCRIPT 513 # need to strip off double quotes 514 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%) 515 endif 516endif 517 518# If there is no specified link script, we look in a number of places for it 519ifndef LDSCRIPT 520 ifeq ($(wildcard $(LDSCRIPT)),) 521 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds 522 endif 523 ifeq ($(wildcard $(LDSCRIPT)),) 524 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds 525 endif 526 ifeq ($(wildcard $(LDSCRIPT)),) 527 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds 528 endif 529endif 530 531else 532# Dummy target needed, because used as prerequisite 533include/config/auto.conf: ; 534endif # $(dot-config) 535 536KBUILD_CFLAGS += -Os #-fomit-frame-pointer 537 538ifdef BUILD_TAG 539KBUILD_CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"' 540endif 541 542KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 543 544KBUILD_CFLAGS += -g 545# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 546# option to the assembler. 547KBUILD_AFLAGS += -g 548 549# Report stack usage if supported 550ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y) 551 KBUILD_CFLAGS += -fstack-usage 552endif 553 554KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) 555 556# turn jbsr into jsr for m68k 557ifeq ($(ARCH),m68k) 558ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4) 559KBUILD_AFLAGS += -Wa,-gstabs,-S 560endif 561endif 562 563# Prohibit date/time macros, which would make the build non-deterministic 564KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 565 566ifneq ($(CONFIG_SYS_TEXT_BASE),) 567KBUILD_CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE) 568endif 569 570export CONFIG_SYS_TEXT_BASE 571 572# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 573KBUILD_CPPFLAGS += $(KCPPFLAGS) 574KBUILD_AFLAGS += $(KAFLAGS) 575KBUILD_CFLAGS += $(KCFLAGS) 576 577# Use UBOOTINCLUDE when you must reference the include/ directory. 578# Needed to be compatible with the O= option 579UBOOTINCLUDE := \ 580 -Iinclude \ 581 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 582 -I$(srctree)/arch/$(ARCH)/include \ 583 -include $(srctree)/include/linux/kconfig.h 584 585NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 586CHECKFLAGS += $(NOSTDINC_FLAGS) 587 588# FIX ME 589cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 590 $(NOSTDINC_FLAGS) 591c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 592 593######################################################################### 594# U-Boot objects....order is important (i.e. start must be first) 595 596head-y := $(CPUDIR)/start.o 597head-$(CONFIG_4xx) += arch/powerpc/cpu/ppc4xx/resetvec.o 598head-$(CONFIG_MPC85xx) += arch/powerpc/cpu/mpc85xx/resetvec.o 599 600HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 601 602libs-y += lib/ 603libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 604libs-y += $(CPUDIR)/ 605ifdef SOC 606libs-y += $(CPUDIR)/$(SOC)/ 607endif 608libs-$(CONFIG_OF_EMBED) += dts/ 609libs-y += arch/$(ARCH)/lib/ 610libs-y += fs/ 611libs-y += net/ 612libs-y += disk/ 613libs-y += drivers/ 614libs-$(CONFIG_DM) += drivers/core/ 615libs-y += drivers/dma/ 616libs-y += drivers/gpio/ 617libs-y += drivers/i2c/ 618libs-y += drivers/input/ 619libs-y += drivers/mmc/ 620libs-y += drivers/mtd/ 621libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/ 622libs-y += drivers/mtd/onenand/ 623libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/ 624libs-y += drivers/mtd/spi/ 625libs-y += drivers/net/ 626libs-y += drivers/net/phy/ 627libs-y += drivers/pci/ 628libs-y += drivers/power/ \ 629 drivers/power/fuel_gauge/ \ 630 drivers/power/mfd/ \ 631 drivers/power/pmic/ \ 632 drivers/power/battery/ 633libs-y += drivers/spi/ 634libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/ 635libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ 636libs-y += drivers/serial/ 637libs-y += drivers/usb/eth/ 638libs-y += drivers/usb/gadget/ 639libs-y += drivers/usb/host/ 640libs-y += drivers/usb/musb/ 641libs-y += drivers/usb/musb-new/ 642libs-y += drivers/usb/phy/ 643libs-y += drivers/usb/ulpi/ 644libs-y += common/ 645libs-y += lib/libfdt/ 646libs-$(CONFIG_API) += api/ 647libs-$(CONFIG_HAS_POST) += post/ 648libs-y += test/ 649libs-y += test/dm/ 650libs-$(CONFIG_DM_DEMO) += drivers/demo/ 651 652ifneq (,$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35 mxs vf610)) 653libs-y += arch/$(ARCH)/imx-common/ 654endif 655 656libs-$(CONFIG_ARM) += arch/arm/cpu/ 657libs-$(CONFIG_PPC) += arch/powerpc/cpu/ 658 659libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 660 661libs-y := $(sort $(libs-y)) 662 663u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 664 665u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 666 667libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 668 669u-boot-init := $(head-y) 670u-boot-main := $(libs-y) 671 672 673# Add GCC lib 674ifdef CONFIG_USE_PRIVATE_LIBGCC 675ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 676PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 677else 678PLATFORM_LIBGCC = -L $(CONFIG_USE_PRIVATE_LIBGCC) -lgcc 679endif 680else 681PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 682endif 683PLATFORM_LIBS += $(PLATFORM_LIBGCC) 684export PLATFORM_LIBS 685export PLATFORM_LIBGCC 686 687# Special flags for CPP when processing the linker script. 688# Pass the version down so we can handle backwards compatibility 689# on the fly. 690LDPPFLAGS += \ 691 -include $(srctree)/include/u-boot/u-boot.lds.h \ 692 -DCPUDIR=$(CPUDIR) \ 693 $(shell $(LD) --version | \ 694 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 695 696######################################################################### 697######################################################################### 698 699ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 700BOARD_SIZE_CHECK = \ 701 @actual=`wc -c $@ | awk '{print $$1}'`; \ 702 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \ 703 if test $$actual -gt $$limit; then \ 704 echo "$@ exceeds file size limit:" >&2 ; \ 705 echo " limit: $$limit bytes" >&2 ; \ 706 echo " actual: $$actual bytes" >&2 ; \ 707 echo " excess: $$((actual - limit)) bytes" >&2; \ 708 exit 1; \ 709 fi 710else 711BOARD_SIZE_CHECK = 712endif 713 714# Statically apply RELA-style relocations (currently arm64 only) 715ifneq ($(CONFIG_STATIC_RELA),) 716# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base 717DO_STATIC_RELA = \ 718 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \ 719 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \ 720 tools/relocate-rela $(2) $(3) $$start $$end 721else 722DO_STATIC_RELA = 723endif 724 725# Always append ALL so that arch config.mk's can add custom ones 726ALL-y += u-boot.srec u-boot.bin System.map binary_size_check 727 728ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin 729ifeq ($(CONFIG_SPL_FSL_PBL),y) 730ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 731else 732ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 733endif 734ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin 735ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 736ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 737ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb u-boot-dtb.bin 738ifeq ($(CONFIG_SPL_FRAMEWORK),y) 739ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 740endif 741ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb 742ifneq ($(CONFIG_SPL_TARGET),) 743ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 744endif 745ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf 746 747# enable combined SPL/u-boot/dtb rules for tegra 748ifneq ($(CONFIG_TEGRA),) 749ifeq ($(CONFIG_SPL),y) 750ifeq ($(CONFIG_OF_SEPARATE),y) 751ALL-y += u-boot-dtb-tegra.bin 752else 753ALL-y += u-boot-nodtb-tegra.bin 754endif 755endif 756endif 757 758LDFLAGS_u-boot += $(LDFLAGS_FINAL) 759ifneq ($(CONFIG_SYS_TEXT_BASE),) 760LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 761endif 762 763quiet_cmd_objcopy = OBJCOPY $@ 764cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 765 766quiet_cmd_mkimage = MKIMAGE $@ 767cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 768 $(if $(KBUILD_VERBOSE:1=), >/dev/null) 769 770quiet_cmd_cat = CAT $@ 771cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 772 773append = cat $(filter-out $< $(PHONY), $^) >> $@ 774 775quiet_cmd_pad_cat = CAT $@ 776cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@ 777 778all: $(ALL-y) 779 780PHONY += dtbs 781dtbs dts/dt.dtb: checkdtc u-boot 782 $(Q)$(MAKE) $(build)=dts dtbs 783 784u-boot-dtb.bin: u-boot.bin dts/dt.dtb FORCE 785 $(call if_changed,cat) 786 787%.imx: %.bin 788 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 789 790quiet_cmd_copy = COPY $@ 791 cmd_copy = cp $< $@ 792 793u-boot.dtb: dts/dt.dtb 794 $(call cmd,copy) 795 796OBJCOPYFLAGS_u-boot.hex := -O ihex 797 798OBJCOPYFLAGS_u-boot.srec := -O srec 799 800u-boot.hex u-boot.srec: u-boot FORCE 801 $(call if_changed,objcopy) 802 803OBJCOPYFLAGS_u-boot.bin := -O binary 804 805binary_size_check: u-boot.bin FORCE 806 @file_size=$(shell wc -c u-boot.bin | awk '{print $$1}') ; \ 807 map_size=$(shell cat u-boot.map | \ 808 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \ 809 | sed 's/0X//g' \ 810 | bc); \ 811 if [ "" != "$$map_size" ]; then \ 812 if test $$map_size -ne $$file_size; then \ 813 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ 814 echo " but u-boot.bin shows $$file_size" >&2 ; \ 815 exit 1; \ 816 fi \ 817 fi 818 819u-boot.bin: u-boot FORCE 820 $(call if_changed,objcopy) 821 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE)) 822 $(BOARD_SIZE_CHECK) 823 824u-boot.ldr: u-boot 825 $(CREATE_LDR_ENV) 826 $(LDR) -T $(CONFIG_BFIN_CPU) -c $@ $< $(LDR_FLAGS) 827 $(BOARD_SIZE_CHECK) 828 829OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 830 831OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 832 833u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 834 $(call if_changed,objcopy) 835 836# 837# U-Boot entry point, needed for booting of full-blown U-Boot 838# from the SPL U-Boot version. 839# 840ifndef CONFIG_SYS_UBOOT_START 841CONFIG_SYS_UBOOT_START := 0 842endif 843 844MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 845 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 846 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 847 848MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 849 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 850 851MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 852 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 853 854u-boot.img u-boot.kwb u-boot.pbl: u-boot.bin FORCE 855 $(call if_changed,mkimage) 856 857MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 858 859u-boot-dtb.img: u-boot-dtb.bin FORCE 860 $(call if_changed,mkimage) 861 862u-boot.sha1: u-boot.bin 863 tools/ubsha1 u-boot.bin 864 865u-boot.dis: u-boot 866 $(OBJDUMP) -d $< > $@ 867 868ifdef CONFIG_TPL 869SPL_PAYLOAD := tpl/u-boot-with-tpl.bin 870else 871SPL_PAYLOAD := u-boot.bin 872endif 873 874OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 875 --pad-to=$(CONFIG_SPL_PAD_TO) 876u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE 877 $(call if_changed,pad_cat) 878 879OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 880 --pad-to=$(CONFIG_TPL_PAD_TO) 881tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 882 $(call if_changed,pad_cat) 883 884SPL: spl/u-boot-spl.bin FORCE 885 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 886 887u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE 888 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 889 890MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE) 891 892u-boot.ubl: u-boot-with-spl.bin FORCE 893 $(call if_changed,mkimage) 894 895MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \ 896 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ 897 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 898spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 899 $(call if_changed,mkimage) 900 901OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 902u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 903 $(call if_changed,pad_cat) 904 905u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 906 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 907u-boot.sb: u-boot.bin spl/u-boot-spl.bin 908 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 909 910# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL. 911# Both images are created using mkimage (crc etc), so that the ROM 912# bootloader can check its integrity. Padding needs to be done to the 913# SPL image (with mkimage header) and not the binary. Otherwise the resulting image 914# which is loaded/copied by the ROM bootloader to SRAM doesn't fit. 915# The resulting image containing both U-Boot images is called u-boot.spr 916MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 917 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 918spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 919 $(call if_changed,mkimage) 920 921OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 922 --gap-fill=0xff 923u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE 924 $(call if_changed,pad_cat) 925 926MKIMAGEFLAGS_u-boot-spl.gph = -A $(ARCH) -T gpimage -C none \ 927 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n SPL 928spl/u-boot-spl.gph: spl/u-boot-spl.bin FORCE 929 $(call if_changed,mkimage) 930 931OBJCOPYFLAGS_u-boot-spi.gph = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 932 --gap-fill=0 933u-boot-spi.gph: spl/u-boot-spl.gph u-boot.img FORCE 934 $(call if_changed,pad_cat) 935 936MKIMAGEFLAGS_u-boot-nand.gph = -A $(ARCH) -T gpimage -C none \ 937 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) -n U-Boot 938u-boot-nand.gph: u-boot.bin FORCE 939 $(call if_changed,mkimage) 940 @dd if=/dev/zero bs=8 count=1 2>/dev/null >> $@ 941 942ifneq ($(CONFIG_SUNXI),) 943OBJCOPYFLAGS_u-boot-sunxi-with-spl.bin = -I binary -O binary \ 944 --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff 945u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img FORCE 946 $(call if_changed,pad_cat) 947endif 948 949ifneq ($(CONFIG_TEGRA),) 950OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 951u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot.bin FORCE 952 $(call if_changed,pad_cat) 953 954ifeq ($(CONFIG_OF_SEPARATE),y) 955u-boot-dtb-tegra.bin: u-boot-nodtb-tegra.bin dts/dt.dtb FORCE 956 $(call if_changed,cat) 957endif 958endif 959 960u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 961 $(call if_changed,cat) 962 963#Add a target to create boot binary having SPL binary in PBI format 964#concatenated with u-boot binary. It is need by PowerPC SoC having 965#internal SRAM <= 512KB. 966MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 967 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 968 969spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 970 $(call if_changed,mkimage) 971 972OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 973 --gap-fill=0xff 974 975u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl u-boot.bin FORCE 976 $(call if_changed,pad_cat) 977 978# PPC4xx needs the SPL at the end of the image, since the reset vector 979# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target 980# and need to introduce a new build target with the full blown U-Boot 981# at the start padded up to the start of the SPL image. And then concat 982# the SPL image to the end. 983 984OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ 985 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff 986u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE 987 $(call if_changed,pad_cat) 988 989# Create a new ELF from a raw binary file. This is useful for arm64 990# where static relocation needs to be performed on the raw binary, 991# but certain simulators only accept an ELF file (but don't do the 992# relocation). 993# FIXME refactor dts/Makefile to share target/arch detection 994u-boot.elf: u-boot.bin 995 @$(OBJCOPY) -B aarch64 -I binary -O elf64-littleaarch64 \ 996 $< u-boot-elf.o 997 @$(LD) u-boot-elf.o -o $@ \ 998 --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \ 999 -Ttext=$(CONFIG_SYS_TEXT_BASE) 1000 1001# Rule to link u-boot 1002# May be overridden by arch/$(ARCH)/config.mk 1003quiet_cmd_u-boot__ ?= LD $@ 1004 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1005 -T u-boot.lds $(u-boot-init) \ 1006 --start-group $(u-boot-main) --end-group \ 1007 $(PLATFORM_LIBS) -Map u-boot.map 1008 1009u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds 1010 $(call if_changed,u-boot__) 1011ifeq ($(CONFIG_KALLSYMS),y) 1012 smap=`$(call SYSTEM_MAP,u-boot) | \ 1013 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1014 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1015 -c $(srctree)/common/system_map.c -o common/system_map.o 1016 $(call cmd,u-boot__) common/system_map.o 1017endif 1018 1019# The actual objects are generated when descending, 1020# make sure no implicit rule kicks in 1021$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1022 1023# Handle descending into subdirectories listed in $(vmlinux-dirs) 1024# Preset locale variables to speed up the build process. Limit locale 1025# tweaks to this spot to avoid wrong language settings when running 1026# make menuconfig etc. 1027# Error messages still appears in the original language 1028 1029PHONY += $(u-boot-dirs) 1030$(u-boot-dirs): prepare scripts 1031 $(Q)$(MAKE) $(build)=$@ 1032 1033tools: prepare 1034# The "tools" are needed early 1035$(filter-out tools, $(u-boot-dirs)): tools 1036# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1037# is "yes"), so compile examples after U-Boot is compiled. 1038examples: $(filter-out examples, $(u-boot-dirs)) 1039 1040define filechk_uboot.release 1041 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1042endef 1043 1044# Store (new) UBOOTRELEASE string in include/config/uboot.release 1045include/config/uboot.release: include/config/auto.conf FORCE 1046 $(call filechk,uboot.release) 1047 1048 1049# Things we need to do before we recursively start building the kernel 1050# or the modules are listed in "prepare". 1051# A multi level approach is used. prepareN is processed before prepareN-1. 1052# archprepare is used in arch Makefiles and when processed asm symlink, 1053# version.h and scripts_basic is processed / created. 1054 1055# Listed in dependency order 1056PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1057 1058# prepare3 is used to check if we are building in a separate output directory, 1059# and if so do: 1060# 1) Check that make has not been executed in the kernel src $(srctree) 1061prepare3: include/config/uboot.release 1062ifneq ($(KBUILD_SRC),) 1063 @$(kecho) ' Using $(srctree) as source for U-Boot' 1064 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 1065 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1066 echo >&2 " in the '$(srctree)' directory.";\ 1067 /bin/false; \ 1068 fi; 1069endif 1070 1071# prepare2 creates a makefile if using a separate output directory 1072prepare2: prepare3 outputmakefile 1073 1074prepare1: prepare2 $(version_h) $(timestamp_h) \ 1075 include/config/auto.conf 1076ifeq ($(__HAVE_ARCH_GENERIC_BOARD),) 1077ifeq ($(CONFIG_SYS_GENERIC_BOARD),y) 1078 @echo >&2 " Your architecture does not support generic board." 1079 @echo >&2 " Please undefine CONFIG_SYS_GENERIC_BOARD in your board config file." 1080 @/bin/false 1081endif 1082endif 1083ifeq ($(wildcard $(LDSCRIPT)),) 1084 @echo >&2 " Could not find linker script." 1085 @/bin/false 1086endif 1087 1088archprepare: prepare1 scripts_basic 1089 1090prepare0: archprepare FORCE 1091 $(Q)$(MAKE) $(build)=. 1092 1093# All the preparing.. 1094prepare: prepare0 1095 1096# Generate some files 1097# --------------------------------------------------------------------------- 1098 1099define filechk_version.h 1100 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1101 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1102 echo \#define CC_VERSION_STRING \"$$($(CC) --version | head -n 1)\"; \ 1103 echo \#define LD_VERSION_STRING \"$$($(LD) --version | head -n 1)\"; ) 1104endef 1105 1106define filechk_timestamp.h 1107 (LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1108 LC_ALL=C date +'#define U_BOOT_TIME "%T"') 1109endef 1110 1111$(version_h): include/config/uboot.release FORCE 1112 $(call filechk,version.h) 1113 1114$(timestamp_h): $(srctree)/Makefile FORCE 1115 $(call filechk,timestamp.h) 1116 1117# --------------------------------------------------------------------------- 1118 1119PHONY += depend dep 1120depend dep: 1121 @echo '*** Warning: make $@ is unnecessary now.' 1122 1123# --------------------------------------------------------------------------- 1124quiet_cmd_cpp_lds = LDS $@ 1125cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 1126 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 1127 1128u-boot.lds: $(LDSCRIPT) prepare FORCE 1129 $(call if_changed_dep,cpp_lds) 1130 1131spl/u-boot-spl.bin: spl/u-boot-spl 1132 @: 1133spl/u-boot-spl: tools prepare 1134 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all 1135 1136spl/sunxi-spl.bin: spl/u-boot-spl 1137 @: 1138 1139tpl/u-boot-tpl.bin: tools prepare 1140 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all 1141 1142TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) 1143 1144FIND := find 1145FINDFLAGS := -L 1146 1147tags ctags: 1148 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1149 -name '*.[chS]' -print` 1150 1151etags: 1152 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1153 -name '*.[chS]' -print` 1154cscope: 1155 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 1156 cscope.files 1157 cscope -b -q -k 1158 1159SYSTEM_MAP = \ 1160 $(NM) $1 | \ 1161 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 1162 LC_ALL=C sort 1163System.map: u-boot 1164 @$(call SYSTEM_MAP,$<) > $@ 1165 1166checkdtc: 1167 @if test $(call dtc-version) -lt 0104; then \ 1168 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \ 1169 false; \ 1170 fi 1171 1172######################################################################### 1173 1174# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 1175# R_AARCH64_RELATIVE (64-bit). 1176checkarmreloc: u-boot 1177 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 1178 grep R_A | sort -u`"; \ 1179 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 1180 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 1181 echo "$< contains unexpected relocations: $$RELOC"; \ 1182 false; \ 1183 fi 1184 1185env: scripts_basic 1186 $(Q)$(MAKE) $(build)=tools/$@ 1187 1188tools-only: scripts_basic $(version_h) $(timestamp_h) 1189 $(Q)$(MAKE) $(build)=tools 1190 1191tools-all: export HOST_TOOLS_ALL=y 1192tools-all: env tools ; 1193 1194cross_tools: export CROSS_BUILD_TOOLS=y 1195cross_tools: tools ; 1196 1197.PHONY : CHANGELOG 1198CHANGELOG: 1199 git log --no-merges U-Boot-1_1_5.. | \ 1200 unexpand -a | sed -e 's/\s\s*$$//' > $@ 1201 1202include/license.h: tools/bin2header COPYING 1203 cat COPYING | gzip -9 -c | ./tools/bin2header license_gzip > include/license.h 1204######################################################################### 1205 1206### 1207# Cleaning is done on three levels. 1208# make clean Delete most generated files 1209# Leave enough to build external modules 1210# make mrproper Delete the current configuration, and all generated files 1211# make distclean Remove editor backup files, patch leftover files and the like 1212 1213# Directories & files removed with 'make clean' 1214CLEAN_DIRS += $(MODVERDIR) 1215CLEAN_FILES += u-boot.lds include/bmp_logo.h include/bmp_logo_data.h 1216 1217# Directories & files removed with 'make clobber' 1218CLOBBER_DIRS += $(foreach d, spl tpl, $(patsubst %,$d/%, \ 1219 $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) 1220CLOBBER_FILES += u-boot* MLO* SPL System.map 1221 1222# Directories & files removed with 'make mrproper' 1223MRPROPER_DIRS += include/config include/generated spl tpl \ 1224 .tmp_objdiff 1225MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ 1226 ctags etags TAGS cscope* GPATH GTAGS GRTAGS GSYMS 1227 1228# clean - Delete most, but leave enough to build external modules 1229# 1230clean: rm-dirs := $(CLEAN_DIRS) 1231clean: rm-files := $(CLEAN_FILES) 1232 1233clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 1234 1235clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook) 1236 1237PHONY += $(clean-dirs) clean archclean 1238$(clean-dirs): 1239 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1240 1241# TODO: Do not use *.cfgtmp 1242clean: $(clean-dirs) 1243 $(call cmd,rmdirs) 1244 $(call cmd,rmfiles) 1245 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1246 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 1247 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \ 1248 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 1249 -o -name '*.symtypes' -o -name 'modules.order' \ 1250 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 1251 -o -name '*.gcno' \) -type f -print | xargs rm -f 1252 1253# clobber 1254# 1255clobber: rm-dirs := $(CLOBBER_DIRS) 1256clobber: rm-files := $(CLOBBER_FILES) 1257 1258PHONY += clobber 1259 1260clobber: clean 1261 $(call cmd,rmdirs) 1262 $(call cmd,rmfiles) 1263 1264# mrproper - Delete all generated files, including .config 1265# 1266mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 1267mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 1268mrproper-dirs := $(addprefix _mrproper_,scripts) 1269 1270PHONY += $(mrproper-dirs) mrproper archmrproper 1271$(mrproper-dirs): 1272 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 1273 1274mrproper: clobber $(mrproper-dirs) 1275 $(call cmd,rmdirs) 1276 $(call cmd,rmfiles) 1277 @rm -f arch/*/include/asm/arch 1278 1279# distclean 1280# 1281PHONY += distclean 1282 1283distclean: mrproper 1284 @find $(srctree) $(RCS_FIND_IGNORE) \ 1285 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 1286 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 1287 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 1288 -o -name '*.pyc' \) \ 1289 -type f -print | xargs rm -f 1290 1291backup: 1292 F=`basename $(srctree)` ; cd .. ; \ 1293 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 1294 1295help: 1296 @echo 'Cleaning targets:' 1297 @echo ' clean - Remove most generated files but keep the config and' 1298 @echo ' necessities for testing u-boot' 1299 @echo ' clobber - Remove most generated files but keep the config' 1300 @echo ' mrproper - Remove all generated files + config + various backup files' 1301 @echo ' distclean - mrproper + remove editor backup and patch files' 1302 @echo '' 1303 @echo 'Configuration targets:' 1304 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 1305 @echo '' 1306 @echo 'Other generic targets:' 1307 @echo ' all - Build all necessary images depending on configuration' 1308 @echo ' u-boot - Build the bare u-boot' 1309 @echo ' dir/ - Build all files in dir and below' 1310 @echo ' dir/file.[oisS] - Build specified target only' 1311 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 1312 @echo ' (requires a recent binutils and recent build (System.map))' 1313 @echo ' tags/ctags - Generate ctags file for editors' 1314 @echo ' etags - Generate etags file for editors' 1315 @echo ' cscope - Generate cscope index' 1316 @echo ' ubootrelease - Output the release version string' 1317 @echo ' ubootversion - Output the version stored in Makefile' 1318 @echo '' 1319 @echo 'Static analysers' 1320 @echo ' checkstack - Generate a list of stack hogs' 1321 @echo '' 1322 @echo 'Documentation targets:' 1323 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp 1324 @echo '' 1325 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 1326 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 1327 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 1328 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 1329 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 1330 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 1331 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 1332 @echo ' 1: warnings which may be relevant and do not occur too often' 1333 @echo ' 2: warnings which occur quite often but may still be relevant' 1334 @echo ' 3: more obscure warnings, can most likely be ignored' 1335 @echo ' Multiple levels can be combined with W=12 or W=123' 1336 @echo '' 1337 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 1338 @echo 'For further info see the ./README file' 1339 1340 1341# Documentation targets 1342# --------------------------------------------------------------------------- 1343%docs: scripts_basic FORCE 1344 $(Q)$(MAKE) $(build)=scripts build_docproc 1345 $(Q)$(MAKE) $(build)=doc/DocBook $@ 1346 1347# Dummies... 1348PHONY += prepare scripts 1349prepare: ; 1350scripts: ; 1351 1352endif #ifeq ($(config-targets),1) 1353endif #ifeq ($(mixed-targets),1) 1354 1355PHONY += checkstack ubootrelease ubootversion 1356 1357checkstack: 1358 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 1359 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 1360 1361ubootrelease: 1362 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1363 1364ubootversion: 1365 @echo $(UBOOTVERSION) 1366 1367# Single targets 1368# --------------------------------------------------------------------------- 1369# Single targets are compatible with: 1370# - build with mixed source and output 1371# - build with separate output dir 'make O=...' 1372# - external modules 1373# 1374# target-dir => where to store outputfile 1375# build-dir => directory in kernel source tree to use 1376 1377ifeq ($(KBUILD_EXTMOD),) 1378 build-dir = $(patsubst %/,%,$(dir $@)) 1379 target-dir = $(dir $@) 1380else 1381 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 1382 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 1383 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 1384endif 1385 1386%.s: %.c prepare scripts FORCE 1387 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1388%.i: %.c prepare scripts FORCE 1389 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1390%.o: %.c prepare scripts FORCE 1391 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1392%.lst: %.c prepare scripts FORCE 1393 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1394%.s: %.S prepare scripts FORCE 1395 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1396%.o: %.S prepare scripts FORCE 1397 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1398%.symtypes: %.c prepare scripts FORCE 1399 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1400 1401# Modules 1402/: prepare scripts FORCE 1403 $(cmd_crmodverdir) 1404 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1405 $(build)=$(build-dir) 1406%/: prepare scripts FORCE 1407 $(cmd_crmodverdir) 1408 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1409 $(build)=$(build-dir) 1410%.ko: prepare scripts FORCE 1411 $(cmd_crmodverdir) 1412 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1413 $(build)=$(build-dir) $(@:.ko=.o) 1414 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1415 1416# FIXME Should go into a make.lib or something 1417# =========================================================================== 1418 1419quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 1420 cmd_rmdirs = rm -rf $(rm-dirs) 1421 1422quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 1423 cmd_rmfiles = rm -f $(rm-files) 1424 1425# read all saved command lines 1426 1427targets := $(wildcard $(sort $(targets))) 1428cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 1429 1430ifneq ($(cmd_files),) 1431 $(cmd_files): ; # Do not try to update included dependency files 1432 include $(cmd_files) 1433endif 1434 1435# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir 1436# Usage: 1437# $(Q)$(MAKE) $(clean)=dir 1438clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj 1439 1440endif # skip-makefile 1441 1442PHONY += FORCE 1443FORCE: 1444 1445# Declare the contents of the .PHONY variable as phony. We keep that 1446# information in a variable so we can use it in if_changed and friends. 1447.PHONY: $(PHONY) 1448