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 = 07 10SUBLEVEL = 11EXTRAVERSION = -rc2 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 169MKCONFIG := $(srctree)/mkconfig 170export MKCONFIG 171 172# Make sure CDPATH settings don't interfere 173unexport CDPATH 174 175######################################################################### 176 177HOSTARCH := $(shell uname -m | \ 178 sed -e s/i.86/x86/ \ 179 -e s/sun4u/sparc64/ \ 180 -e s/arm.*/arm/ \ 181 -e s/sa110/arm/ \ 182 -e s/ppc64/powerpc/ \ 183 -e s/ppc/powerpc/ \ 184 -e s/macppc/powerpc/\ 185 -e s/sh.*/sh/) 186 187HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \ 188 sed -e 's/\(cygwin\).*/cygwin/') 189 190export HOSTARCH HOSTOS 191 192# Deal with colliding definitions from tcsh etc. 193VENDOR= 194 195######################################################################### 196 197# set default to nothing for native builds 198ifeq ($(HOSTARCH),$(ARCH)) 199CROSS_COMPILE ?= 200endif 201 202# SHELL used by kbuild 203CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ 204 else if [ -x /bin/bash ]; then echo /bin/bash; \ 205 else echo sh; fi ; fi) 206 207HOSTCC = gcc 208HOSTCXX = g++ 209HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer 210HOSTCXXFLAGS = -O2 211 212ifeq ($(shell $(HOSTCC) -v 2>&1 | grep -c "clang version"), 1) 213HOSTCFLAGS += -Wno-unused-value -Wno-unused-parameter \ 214 -Wno-missing-field-initializers -fno-delete-null-pointer-checks 215endif 216 217ifeq ($(HOSTOS),cygwin) 218HOSTCFLAGS += -ansi 219endif 220 221# Mac OS X / Darwin's C preprocessor is Apple specific. It 222# generates numerous errors and warnings. We want to bypass it 223# and use GNU C's cpp. To do this we pass the -traditional-cpp 224# option to the compiler. Note that the -traditional-cpp flag 225# DOES NOT have the same semantics as GNU C's flag, all it does 226# is invoke the GNU preprocessor in stock ANSI/ISO C fashion. 227# 228# Apple's linker is similar, thanks to the new 2 stage linking 229# multiple symbol definitions are treated as errors, hence the 230# -multiply_defined suppress option to turn off this error. 231# 232ifeq ($(HOSTOS),darwin) 233# get major and minor product version (e.g. '10' and '6' for Snow Leopard) 234DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.') 235DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.') 236 237os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \ 238 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;) 239 240# Snow Leopards build environment has no longer restrictions as described above 241HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc") 242HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp") 243HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress") 244endif 245 246# Decide whether to build built-in, modular, or both. 247# Normally, just do built-in. 248 249KBUILD_MODULES := 250KBUILD_BUILTIN := 1 251 252# If we have only "make modules", don't compile built-in objects. 253# When we're building modules with modversions, we need to consider 254# the built-in objects during the descend as well, in order to 255# make sure the checksums are up to date before we record them. 256 257ifeq ($(MAKECMDGOALS),modules) 258 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) 259endif 260 261# If we have "make <whatever> modules", compile modules 262# in addition to whatever we do anyway. 263# Just "make" or "make all" shall build modules as well 264 265# U-Boot does not need modules 266#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) 267# KBUILD_MODULES := 1 268#endif 269 270#ifeq ($(MAKECMDGOALS),) 271# KBUILD_MODULES := 1 272#endif 273 274export KBUILD_MODULES KBUILD_BUILTIN 275export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD 276 277# Beautify output 278# --------------------------------------------------------------------------- 279# 280# Normally, we echo the whole command before executing it. By making 281# that echo $($(quiet)$(cmd)), we now have the possibility to set 282# $(quiet) to choose other forms of output instead, e.g. 283# 284# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ 285# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< 286# 287# If $(quiet) is empty, the whole command will be printed. 288# If it is set to "quiet_", only the short version will be printed. 289# If it is set to "silent_", nothing will be printed at all, since 290# the variable $(silent_cmd_cc_o_c) doesn't exist. 291# 292# A simple variant is to prefix commands with $(Q) - that's useful 293# for commands that shall be hidden in non-verbose mode. 294# 295# $(Q)ln $@ :< 296# 297# If KBUILD_VERBOSE equals 0 then the above command will be hidden. 298# If KBUILD_VERBOSE equals 1 then the above command is displayed. 299 300ifeq ($(KBUILD_VERBOSE),1) 301 quiet = 302 Q = 303else 304 quiet=quiet_ 305 Q = @ 306endif 307 308# If the user is running make -s (silent mode), suppress echoing of 309# commands 310 311ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4 312ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),) 313 quiet=silent_ 314endif 315else # make-3.8x 316ifneq ($(filter s% -s%,$(MAKEFLAGS)),) 317 quiet=silent_ 318endif 319endif 320 321export quiet Q KBUILD_VERBOSE 322 323ifneq ($(CC),) 324ifeq ($(shell $(CC) -v 2>&1 | grep -c "clang version"), 1) 325COMPILER := clang 326else 327COMPILER := gcc 328endif 329export COMPILER 330endif 331 332# Look for make include files relative to root of kernel src 333MAKEFLAGS += --include-dir=$(srctree) 334 335# We need some generic definitions (do not try to remake the file). 336$(srctree)/scripts/Kbuild.include: ; 337include $(srctree)/scripts/Kbuild.include 338 339# Make variables (CC, etc...) 340 341AS = $(CROSS_COMPILE)as 342# Always use GNU ld 343ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),) 344LD = $(CROSS_COMPILE)ld.bfd 345else 346LD = $(CROSS_COMPILE)ld 347endif 348CC = $(CROSS_COMPILE)gcc 349CPP = $(CC) -E 350AR = $(CROSS_COMPILE)ar 351NM = $(CROSS_COMPILE)nm 352LDR = $(CROSS_COMPILE)ldr 353STRIP = $(CROSS_COMPILE)strip 354OBJCOPY = $(CROSS_COMPILE)objcopy 355OBJDUMP = $(CROSS_COMPILE)objdump 356AWK = awk 357DTC = dtc 358CHECK = sparse 359 360CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ 361 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF) 362 363KBUILD_CPPFLAGS := -D__KERNEL__ 364 365KBUILD_CFLAGS := -Wall -Wstrict-prototypes \ 366 -Wno-format-security \ 367 -fno-builtin -ffreestanding 368KBUILD_AFLAGS := -D__ASSEMBLY__ 369 370# Read UBOOTRELEASE from include/config/uboot.release (if it exists) 371UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null) 372UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) 373 374export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION 375export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR 376export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC 377export CPP AR NM LDR STRIP OBJCOPY OBJDUMP 378export MAKE AWK 379export DTC CHECK CHECKFLAGS 380 381export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS 382export KBUILD_CFLAGS KBUILD_AFLAGS 383 384# When compiling out-of-tree modules, put MODVERDIR in the module 385# tree rather than in the kernel tree. The kernel tree might 386# even be read-only. 387export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions 388 389# Files to ignore in find ... statements 390 391export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ 392 -name CVS -o -name .pc -o -name .hg -o -name .git \) \ 393 -prune -o 394export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ 395 --exclude CVS --exclude .pc --exclude .hg --exclude .git 396 397# =========================================================================== 398# Rules shared between *config targets and build targets 399 400# Basic helpers built in scripts/ 401PHONY += scripts_basic 402scripts_basic: 403 $(Q)$(MAKE) $(build)=scripts/basic 404 $(Q)rm -f .tmp_quiet_recordmcount 405 406# To avoid any implicit rule to kick in, define an empty command. 407scripts/basic/%: scripts_basic ; 408 409PHONY += outputmakefile 410# outputmakefile generates a Makefile in the output directory, if using a 411# separate output directory. This allows convenient use of make in the 412# output directory. 413outputmakefile: 414ifneq ($(KBUILD_SRC),) 415 $(Q)ln -fsn $(srctree) source 416 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ 417 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) 418endif 419 420# To make sure we do not include .config for any of the *config targets 421# catch them early, and hand them over to scripts/kconfig/Makefile 422# It is allowed to specify more targets when calling make, including 423# mixing *config targets and build targets. 424# For example 'make oldconfig all'. 425# Detect when mixed targets is specified, and make a second invocation 426# of make so .config is not included in this case either (for *config). 427 428version_h := include/generated/version_autogenerated.h 429timestamp_h := include/generated/timestamp_autogenerated.h 430 431no-dot-config-targets := clean clobber mrproper distclean \ 432 help %docs check% coccicheck \ 433 ubootversion backup tools-only 434 435config-targets := 0 436mixed-targets := 0 437dot-config := 1 438 439ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) 440 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) 441 dot-config := 0 442 endif 443endif 444 445ifeq ($(KBUILD_EXTMOD),) 446 ifneq ($(filter config %config,$(MAKECMDGOALS)),) 447 config-targets := 1 448 ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) 449 mixed-targets := 1 450 endif 451 endif 452endif 453 454ifeq ($(mixed-targets),1) 455# =========================================================================== 456# We're called with mixed targets (*config and build targets). 457# Handle them one by one. 458 459PHONY += $(MAKECMDGOALS) build-one-by-one 460 461$(MAKECMDGOALS): build-one-by-one 462 @: 463 464build-one-by-one: 465 $(Q)set -e; \ 466 for i in $(MAKECMDGOALS); do \ 467 $(MAKE) -f $(srctree)/Makefile $$i; \ 468 done 469 470else 471ifeq ($(config-targets),1) 472# =========================================================================== 473# *config targets only - make sure prerequisites are updated, and descend 474# in scripts/kconfig to make the *config target 475 476# Read arch specific Makefile to set KBUILD_DEFCONFIG as needed. 477# KBUILD_DEFCONFIG may point out an alternative default configuration 478# used for 'make defconfig' 479 480%_config:: outputmakefile 481 @$(MKCONFIG) -A $(@:_config=) 482 483else 484# =========================================================================== 485# Build targets only - this includes vmlinux, arch specific targets, clean 486# targets and others. In general all targets except *config targets. 487 488# load ARCH, BOARD, and CPU configuration 489-include include/config.mk 490 491ifeq ($(dot-config),1) 492# Read in config 493-include include/autoconf.mk 494-include include/autoconf.mk.dep 495 496# load other configuration 497include $(srctree)/config.mk 498 499ifeq ($(wildcard include/config.mk),) 500$(error "System not configured - see README") 501endif 502 503# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use 504# that (or fail if absent). Otherwise, search for a linker script in a 505# standard location. 506 507ifndef LDSCRIPT 508 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug 509 ifdef CONFIG_SYS_LDSCRIPT 510 # need to strip off double quotes 511 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%) 512 endif 513endif 514 515# If there is no specified link script, we look in a number of places for it 516ifndef LDSCRIPT 517 ifeq ($(CONFIG_NAND_U_BOOT),y) 518 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-nand.lds 519 ifeq ($(wildcard $(LDSCRIPT)),) 520 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-nand.lds 521 endif 522 endif 523 ifeq ($(wildcard $(LDSCRIPT)),) 524 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds 525 endif 526 ifeq ($(wildcard $(LDSCRIPT)),) 527 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds 528 endif 529 ifeq ($(wildcard $(LDSCRIPT)),) 530 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds 531 endif 532endif 533 534else 535 536 537endif # $(dot-config) 538 539KBUILD_CFLAGS += -Os #-fomit-frame-pointer 540 541ifdef BUILD_TAG 542KBUILD_CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"' 543endif 544 545KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 546 547ifeq ($(COMPILER),clang) 548KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,) 549KBUILD_CPPFLAGS += $(call cc-option,-Wno-unknown-warning-option,) 550KBUILD_CFLAGS += $(call cc-disable-warning, unused-variable) 551KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier) 552KBUILD_CFLAGS += $(call cc-disable-warning, gnu) 553# Quiet clang warning: comparison of unsigned expression < 0 is always false 554KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare) 555# CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the 556# source of a reference will be _MergedGlobals and not on of the whitelisted names. 557# See modpost pattern 2 558KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,) 559endif 560 561KBUILD_CFLAGS += -g 562# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 563# option to the assembler. 564KBUILD_AFLAGS += -g 565 566# Report stack usage if supported 567ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y) 568 KBUILD_CFLAGS += -fstack-usage 569endif 570 571KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) 572 573# turn jbsr into jsr for m68k 574ifeq ($(ARCH),m68k) 575ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4) 576KBUILD_AFLAGS += -Wa,-gstabs,-S 577endif 578endif 579 580# Prohibit date/time macros, which would make the build non-deterministic 581KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 582 583ifneq ($(CONFIG_SYS_TEXT_BASE),) 584KBUILD_CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE) 585endif 586 587export CONFIG_SYS_TEXT_BASE 588 589# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 590KBUILD_CPPFLAGS += $(KCPPFLAGS) 591KBUILD_AFLAGS += $(KAFLAGS) 592KBUILD_CFLAGS += $(KCFLAGS) 593 594# Use UBOOTINCLUDE when you must reference the include/ directory. 595# Needed to be compatible with the O= option 596UBOOTINCLUDE := \ 597 -Iinclude \ 598 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 599 -I$(srctree)/arch/$(ARCH)/include 600 601NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 602CHECKFLAGS += $(NOSTDINC_FLAGS) 603 604# FIX ME 605cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 606 $(NOSTDINC_FLAGS) 607c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 608 609######################################################################### 610# U-Boot objects....order is important (i.e. start must be first) 611 612head-y := $(CPUDIR)/start.o 613head-$(CONFIG_4xx) += arch/powerpc/cpu/ppc4xx/resetvec.o 614head-$(CONFIG_MPC85xx) += arch/powerpc/cpu/mpc85xx/resetvec.o 615 616HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 617 618libs-y += lib/ 619libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 620libs-y += $(CPUDIR)/ 621ifdef SOC 622libs-y += $(CPUDIR)/$(SOC)/ 623endif 624libs-$(CONFIG_OF_EMBED) += dts/ 625libs-y += arch/$(ARCH)/lib/ 626libs-y += fs/ 627libs-y += net/ 628libs-y += disk/ 629libs-y += drivers/ 630libs-$(CONFIG_DM) += drivers/core/ 631libs-y += drivers/dma/ 632libs-y += drivers/gpio/ 633libs-y += drivers/i2c/ 634libs-y += drivers/input/ 635libs-y += drivers/mmc/ 636libs-y += drivers/mtd/ 637libs-$(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-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ 652libs-y += drivers/serial/ 653libs-y += drivers/usb/eth/ 654libs-y += drivers/usb/gadget/ 655libs-y += drivers/usb/host/ 656libs-y += drivers/usb/musb/ 657libs-y += drivers/usb/musb-new/ 658libs-y += drivers/usb/phy/ 659libs-y += drivers/usb/ulpi/ 660libs-y += common/ 661libs-y += lib/libfdt/ 662libs-$(CONFIG_API) += api/ 663libs-$(CONFIG_HAS_POST) += post/ 664libs-y += test/ 665libs-y += test/dm/ 666libs-$(CONFIG_DM_DEMO) += drivers/demo/ 667 668ifneq (,$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35 mxs vf610)) 669libs-y += arch/$(ARCH)/imx-common/ 670endif 671 672libs-$(CONFIG_ARM) += arch/arm/cpu/ 673libs-$(CONFIG_PPC) += arch/powerpc/cpu/ 674 675libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 676 677libs-y := $(sort $(libs-y)) 678 679u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 680 681u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 682 683libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 684 685u-boot-init := $(head-y) 686u-boot-main := $(libs-y) 687 688 689# Add GCC lib 690ifdef CONFIG_USE_PRIVATE_LIBGCC 691ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 692PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 693else 694PLATFORM_LIBGCC = -L $(CONFIG_USE_PRIVATE_LIBGCC) -lgcc 695endif 696else 697PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 698endif 699PLATFORM_LIBS += $(PLATFORM_LIBGCC) 700export PLATFORM_LIBS 701export PLATFORM_LIBGCC 702 703# Special flags for CPP when processing the linker script. 704# Pass the version down so we can handle backwards compatibility 705# on the fly. 706LDPPFLAGS += \ 707 -include $(srctree)/include/u-boot/u-boot.lds.h \ 708 -DCPUDIR=$(CPUDIR) \ 709 $(shell $(LD) --version | \ 710 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 711 712######################################################################### 713######################################################################### 714 715ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 716BOARD_SIZE_CHECK = \ 717 @actual=`wc -c $@ | awk '{print $$1}'`; \ 718 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \ 719 if test $$actual -gt $$limit; then \ 720 echo "$@ exceeds file size limit:" >&2 ; \ 721 echo " limit: $$limit bytes" >&2 ; \ 722 echo " actual: $$actual bytes" >&2 ; \ 723 echo " excess: $$((actual - limit)) bytes" >&2; \ 724 exit 1; \ 725 fi 726else 727BOARD_SIZE_CHECK = 728endif 729 730# Statically apply RELA-style relocations (currently arm64 only) 731ifneq ($(CONFIG_STATIC_RELA),) 732# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base 733DO_STATIC_RELA = \ 734 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \ 735 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \ 736 tools/relocate-rela $(2) $(3) $$start $$end 737else 738DO_STATIC_RELA = 739endif 740 741# Always append ALL so that arch config.mk's can add custom ones 742ALL-y += u-boot.srec u-boot.bin System.map 743 744ALL-$(CONFIG_NAND_U_BOOT) += u-boot-nand.bin 745ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin 746ifeq ($(CONFIG_SPL_FSL_PBL),y) 747ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 748else 749ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 750endif 751ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin 752ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 753ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 754ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb u-boot-dtb.bin 755ifeq ($(CONFIG_SPL_FRAMEWORK),y) 756ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 757endif 758ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb 759ifneq ($(CONFIG_SPL_TARGET),) 760ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 761endif 762ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf 763 764# enable combined SPL/u-boot/dtb rules for tegra 765ifneq ($(CONFIG_TEGRA),) 766ifeq ($(CONFIG_SPL),y) 767ifeq ($(CONFIG_OF_SEPARATE),y) 768ALL-y += u-boot-dtb-tegra.bin 769else 770ALL-y += u-boot-nodtb-tegra.bin 771endif 772endif 773endif 774 775LDFLAGS_u-boot += $(LDFLAGS_FINAL) 776ifneq ($(CONFIG_SYS_TEXT_BASE),) 777LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 778endif 779 780quiet_cmd_objcopy = OBJCOPY $@ 781cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 782 783quiet_cmd_mkimage = MKIMAGE $@ 784cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 785 $(if $(KBUILD_VERBOSE:1=), >/dev/null) 786 787quiet_cmd_cat = CAT $@ 788cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 789 790append = cat $(filter-out $< $(PHONY), $^) >> $@ 791 792quiet_cmd_pad_cat = CAT $@ 793cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@ 794 795all: $(ALL-y) 796 797PHONY += dtbs 798dtbs dts/dt.dtb: checkdtc u-boot 799 $(Q)$(MAKE) $(build)=dts dtbs 800 801u-boot-dtb.bin: u-boot.bin dts/dt.dtb FORCE 802 $(call if_changed,cat) 803 804%.imx: %.bin 805 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 806 807quiet_cmd_copy = COPY $@ 808 cmd_copy = cp $< $@ 809 810u-boot.dtb: dts/dt.dtb 811 $(call cmd,copy) 812 813OBJCOPYFLAGS_u-boot.hex := -O ihex 814 815OBJCOPYFLAGS_u-boot.srec := -O srec 816 817u-boot.hex u-boot.srec: u-boot FORCE 818 $(call if_changed,objcopy) 819 820OBJCOPYFLAGS_u-boot.bin := -O binary 821 822u-boot.bin: u-boot FORCE 823 $(call if_changed,objcopy) 824 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE)) 825 $(BOARD_SIZE_CHECK) 826 827u-boot.ldr: u-boot 828 $(CREATE_LDR_ENV) 829 $(LDR) -T $(CONFIG_BFIN_CPU) -c $@ $< $(LDR_FLAGS) 830 $(BOARD_SIZE_CHECK) 831 832OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 833 834OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 835 836u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 837 $(call if_changed,objcopy) 838 839# 840# U-Boot entry point, needed for booting of full-blown U-Boot 841# from the SPL U-Boot version. 842# 843ifndef CONFIG_SYS_UBOOT_START 844CONFIG_SYS_UBOOT_START := 0 845endif 846 847MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 848 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 849 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 850 851MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 852 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 853 854MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 855 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 856 857u-boot.img u-boot.kwb u-boot.pbl: u-boot.bin FORCE 858 $(call if_changed,mkimage) 859 860MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 861 862u-boot-dtb.img: u-boot-dtb.bin FORCE 863 $(call if_changed,mkimage) 864 865u-boot.sha1: u-boot.bin 866 tools/ubsha1 u-boot.bin 867 868u-boot.dis: u-boot 869 $(OBJDUMP) -d $< > $@ 870 871ifdef CONFIG_TPL 872SPL_PAYLOAD := tpl/u-boot-with-tpl.bin 873else 874SPL_PAYLOAD := u-boot.bin 875endif 876 877OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 878 --pad-to=$(CONFIG_SPL_PAD_TO) 879u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE 880 $(call if_changed,pad_cat) 881 882OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 883 --pad-to=$(CONFIG_TPL_PAD_TO) 884tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 885 $(call if_changed,pad_cat) 886 887SPL: spl/u-boot-spl.bin FORCE 888 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 889 890u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE 891 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 892 893MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE) 894 895u-boot.ubl: u-boot-with-spl.bin FORCE 896 $(call if_changed,mkimage) 897 898MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \ 899 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ 900 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 901spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 902 $(call if_changed,mkimage) 903 904OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 905u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 906 $(call if_changed,pad_cat) 907 908u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 909 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 910u-boot.sb: u-boot.bin spl/u-boot-spl.bin 911 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 912 913# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL. 914# Both images are created using mkimage (crc etc), so that the ROM 915# bootloader can check its integrity. Padding needs to be done to the 916# SPL image (with mkimage header) and not the binary. Otherwise the resulting image 917# which is loaded/copied by the ROM bootloader to SRAM doesn't fit. 918# The resulting image containing both U-Boot images is called u-boot.spr 919MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 920 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 921spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 922 $(call if_changed,mkimage) 923 924OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 925 --gap-fill=0xff 926u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE 927 $(call if_changed,pad_cat) 928 929MKIMAGEFLAGS_u-boot-spl.gph = -A $(ARCH) -T gpimage -C none \ 930 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n SPL 931spl/u-boot-spl.gph: spl/u-boot-spl.bin FORCE 932 $(call if_changed,mkimage) 933 934OBJCOPYFLAGS_u-boot-spi.gph = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 935 --gap-fill=0 936u-boot-spi.gph: spl/u-boot-spl.gph u-boot.img FORCE 937 $(call if_changed,pad_cat) 938 939ifneq ($(CONFIG_SUNXI),) 940OBJCOPYFLAGS_u-boot-sunxi-with-spl.bin = -I binary -O binary \ 941 --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff 942u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img FORCE 943 $(call if_changed,pad_cat) 944endif 945 946ifneq ($(CONFIG_TEGRA),) 947OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 948u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot.bin FORCE 949 $(call if_changed,pad_cat) 950 951ifeq ($(CONFIG_OF_SEPARATE),y) 952u-boot-dtb-tegra.bin: u-boot-nodtb-tegra.bin dts/dt.dtb FORCE 953 $(call if_changed,cat) 954endif 955endif 956 957u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 958 $(call if_changed,cat) 959 960#Add a target to create boot binary having SPL binary in PBI format 961#concatenated with u-boot binary. It is need by PowerPC SoC having 962#internal SRAM <= 512KB. 963MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 964 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 965 966spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 967 $(call if_changed,mkimage) 968 969OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 970 --gap-fill=0xff 971 972u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl u-boot.bin FORCE 973 $(call if_changed,pad_cat) 974 975# PPC4xx needs the SPL at the end of the image, since the reset vector 976# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target 977# and need to introduce a new build target with the full blown U-Boot 978# at the start padded up to the start of the SPL image. And then concat 979# the SPL image to the end. 980 981OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ 982 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff 983u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE 984 $(call if_changed,pad_cat) 985 986# Create a new ELF from a raw binary file. This is useful for arm64 987# where static relocation needs to be performed on the raw binary, 988# but certain simulators only accept an ELF file (but don't do the 989# relocation). 990# FIXME refactor dts/Makefile to share target/arch detection 991u-boot.elf: u-boot.bin 992 @$(OBJCOPY) -B aarch64 -I binary -O elf64-littleaarch64 \ 993 $< u-boot-elf.o 994 @$(LD) u-boot-elf.o -o $@ \ 995 --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \ 996 -Ttext=$(CONFIG_SYS_TEXT_BASE) 997 998# Rule to link u-boot 999# May be overridden by arch/$(ARCH)/config.mk 1000quiet_cmd_u-boot__ ?= LD $@ 1001 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1002 -T u-boot.lds $(u-boot-init) \ 1003 --start-group $(u-boot-main) --end-group \ 1004 $(PLATFORM_LIBS) -Map u-boot.map 1005 1006u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds 1007 $(call if_changed,u-boot__) 1008ifeq ($(CONFIG_KALLSYMS),y) 1009 smap=`$(call SYSTEM_MAP,u-boot) | \ 1010 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1011 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1012 -c $(srctree)/common/system_map.c -o common/system_map.o 1013 $(call cmd,u-boot__) common/system_map.o 1014endif 1015 1016# The actual objects are generated when descending, 1017# make sure no implicit rule kicks in 1018$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1019 1020# Handle descending into subdirectories listed in $(vmlinux-dirs) 1021# Preset locale variables to speed up the build process. Limit locale 1022# tweaks to this spot to avoid wrong language settings when running 1023# make menuconfig etc. 1024# Error messages still appears in the original language 1025 1026PHONY += $(u-boot-dirs) 1027$(u-boot-dirs): prepare scripts 1028 $(Q)$(MAKE) $(build)=$@ 1029 1030tools: prepare 1031# The "tools" are needed early 1032$(filter-out tools, $(u-boot-dirs)): tools 1033# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1034# is "yes"), so compile examples after U-Boot is compiled. 1035examples: $(filter-out examples, $(u-boot-dirs)) 1036 1037define filechk_uboot.release 1038 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1039endef 1040 1041# Store (new) UBOOTRELEASE string in include/config/uboot.release 1042include/config/uboot.release: Makefile FORCE 1043 $(call filechk,uboot.release) 1044 1045 1046# Things we need to do before we recursively start building the kernel 1047# or the modules are listed in "prepare". 1048# A multi level approach is used. prepareN is processed before prepareN-1. 1049# archprepare is used in arch Makefiles and when processed asm symlink, 1050# version.h and scripts_basic is processed / created. 1051 1052# Listed in dependency order 1053PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1054 1055# prepare3 is used to check if we are building in a separate output directory, 1056# and if so do: 1057# 1) Check that make has not been executed in the kernel src $(srctree) 1058prepare3: include/config/uboot.release 1059ifneq ($(KBUILD_SRC),) 1060 @$(kecho) ' Using $(srctree) as source for u-boot' 1061 $(Q)if [ -f $(srctree)/include/config.mk ]; then \ 1062 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1063 echo >&2 " in the '$(srctree)' directory.";\ 1064 /bin/false; \ 1065 fi; 1066endif 1067 1068# prepare2 creates a makefile if using a separate output directory 1069prepare2: prepare3 outputmakefile 1070 1071prepare1: prepare2 $(version_h) $(timestamp_h) 1072ifeq ($(__HAVE_ARCH_GENERIC_BOARD),) 1073ifeq ($(CONFIG_SYS_GENERIC_BOARD),y) 1074 @echo >&2 " Your architecture does not support generic board." 1075 @echo >&2 " Please undefine CONFIG_SYS_GENERIC_BOARD in your board config file." 1076 @/bin/false 1077endif 1078endif 1079ifeq ($(wildcard $(LDSCRIPT)),) 1080 @echo >&2 " Could not find linker script." 1081 @/bin/false 1082endif 1083 1084archprepare: prepare1 scripts_basic 1085 1086prepare0: archprepare FORCE 1087 $(Q)$(MAKE) $(build)=. 1088 1089# All the preparing.. 1090prepare: prepare0 1091 1092# Generate some files 1093# --------------------------------------------------------------------------- 1094 1095define filechk_version.h 1096 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1097 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1098 echo \#define CC_VERSION_STRING \"$$($(CC) --version | head -n 1)\"; \ 1099 echo \#define LD_VERSION_STRING \"$$($(LD) --version | head -n 1)\"; ) 1100endef 1101 1102define filechk_timestamp.h 1103 (LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1104 LC_ALL=C date +'#define U_BOOT_TIME "%T"') 1105endef 1106 1107$(version_h): include/config/uboot.release FORCE 1108 $(call filechk,version.h) 1109 1110$(timestamp_h): $(srctree)/Makefile FORCE 1111 $(call filechk,timestamp.h) 1112 1113# 1114# Auto-generate the autoconf.mk file (which is included by all makefiles) 1115# 1116# This target actually generates 2 files; autoconf.mk and autoconf.mk.dep. 1117# the dep file is only include in this top level makefile to determine when 1118# to regenerate the autoconf.mk file. 1119 1120quiet_cmd_autoconf_dep = GEN $@ 1121 cmd_autoconf_dep = $(CC) -x c -DDO_DEPS_ONLY -M $(c_flags) \ 1122 -MQ include/autoconf.mk $(srctree)/include/common.h > $@ || rm $@ 1123 1124include/autoconf.mk.dep: include/config.h include/common.h 1125 $(call cmd,autoconf_dep) 1126 1127quiet_cmd_autoconf = GEN $@ 1128 cmd_autoconf = \ 1129 $(CPP) $(c_flags) -DDO_DEPS_ONLY -dM $(srctree)/include/common.h > $@.tmp && \ 1130 sed -n -f $(srctree)/tools/scripts/define2mk.sed $@.tmp > $@; \ 1131 rm $@.tmp 1132 1133include/autoconf.mk: include/config.h 1134 $(call cmd,autoconf) 1135 1136# --------------------------------------------------------------------------- 1137 1138PHONY += depend dep 1139depend dep: 1140 @echo '*** Warning: make $@ is unnecessary now.' 1141 1142# --------------------------------------------------------------------------- 1143quiet_cmd_cpp_lds = LDS $@ 1144cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 1145 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 1146 1147u-boot.lds: $(LDSCRIPT) prepare FORCE 1148 $(call if_changed_dep,cpp_lds) 1149 1150PHONY += nand_spl 1151nand_spl: prepare 1152 $(Q)$(MAKE) $(build)=nand_spl/board/$(BOARDDIR) all 1153 @echo >&2 1154 @echo >&2 "==================== WARNING =====================" 1155 @echo >&2 "nand_spl will not be included in v2014.07 release." 1156 @echo >&2 "Please switch over to SPL." 1157 @echo >&2 "Otherwise, this board will be removed." 1158 @echo >&2 "==================================================" 1159 @echo >&2 1160 1161nand_spl/u-boot-spl-16k.bin: nand_spl 1162 @: 1163 1164u-boot-nand.bin: nand_spl/u-boot-spl-16k.bin u-boot.bin FORCE 1165 $(call if_changed,cat) 1166 1167spl/u-boot-spl.bin: spl/u-boot-spl 1168 @: 1169spl/u-boot-spl: tools prepare 1170 $(Q)$(MAKE) obj=spl -f $(srctree)/spl/Makefile all 1171 1172spl/sunxi-spl.bin: spl/u-boot-spl 1173 @: 1174 1175tpl/u-boot-tpl.bin: tools prepare 1176 $(Q)$(MAKE) obj=tpl -f $(srctree)/spl/Makefile all CONFIG_TPL_BUILD=y 1177 1178TAG_SUBDIRS := $(u-boot-dirs) include 1179 1180FIND := find 1181FINDFLAGS := -L 1182 1183tags ctags: 1184 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1185 -name '*.[chS]' -print` 1186 1187etags: 1188 etags -a -o $(obj)etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1189 -name '*.[chS]' -print` 1190cscope: 1191 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 1192 cscope.files 1193 cscope -b -q -k 1194 1195SYSTEM_MAP = \ 1196 $(NM) $1 | \ 1197 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 1198 LC_ALL=C sort 1199System.map: u-boot 1200 @$(call SYSTEM_MAP,$<) > $@ 1201 1202checkdtc: 1203 @if test $(call dtc-version) -lt 0104; then \ 1204 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \ 1205 false; \ 1206 fi 1207 1208######################################################################### 1209 1210# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 1211# R_AARCH64_RELATIVE (64-bit). 1212checkarmreloc: u-boot 1213 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 1214 grep R_A | sort -u`"; \ 1215 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 1216 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 1217 echo "$< contains unexpected relocations: $$RELOC"; \ 1218 false; \ 1219 fi 1220 1221env: scripts_basic 1222 $(Q)$(MAKE) $(build)=tools/$@ 1223 1224tools-only: scripts_basic $(version_h) $(timestamp_h) 1225 $(Q)$(MAKE) $(build)=tools 1226 1227tools-all: export HOST_TOOLS_ALL=y 1228tools-all: env tools ; 1229 1230cross_tools: export CROSS_BUILD_TOOLS=y 1231cross_tools: tools ; 1232 1233.PHONY : CHANGELOG 1234CHANGELOG: 1235 git log --no-merges U-Boot-1_1_5.. | \ 1236 unexpand -a | sed -e 's/\s\s*$$//' > $@ 1237 1238include/license.h: tools/bin2header COPYING 1239 cat COPYING | gzip -9 -c | ./tools/bin2header license_gzip > include/license.h 1240######################################################################### 1241 1242### 1243# Cleaning is done on three levels. 1244# make clean Delete most generated files 1245# Leave enough to build external modules 1246# make mrproper Delete the current configuration, and all generated files 1247# make distclean Remove editor backup files, patch leftover files and the like 1248 1249# Directories & files removed with 'make clean' 1250CLEAN_DIRS += $(MODVERDIR) 1251CLEAN_FILES += u-boot.lds include/bmp_logo.h include/bmp_logo_data.h \ 1252 include/autoconf.mk* include/spl-autoconf.mk \ 1253 include/tpl-autoconf.mk 1254 1255# Directories & files removed with 'make clobber' 1256CLOBBER_DIRS += $(patsubst %,spl/%, $(filter-out Makefile, \ 1257 $(shell ls -1 spl 2>/dev/null))) \ 1258 tpl 1259CLOBBER_FILES += u-boot* MLO* SPL System.map nand_spl/u-boot* 1260 1261# Directories & files removed with 'make mrproper' 1262MRPROPER_DIRS += include/config include/generated \ 1263 .tmp_objdiff 1264MRPROPER_FILES += .config .config.old \ 1265 tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \ 1266 include/config.h include/config.mk 1267 1268# clean - Delete most, but leave enough to build external modules 1269# 1270clean: rm-dirs := $(CLEAN_DIRS) 1271clean: rm-files := $(CLEAN_FILES) 1272 1273clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 1274 1275clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook) 1276 1277PHONY += $(clean-dirs) clean archclean 1278$(clean-dirs): 1279 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1280 1281# TODO: Do not use *.cfgtmp 1282clean: $(clean-dirs) 1283 $(call cmd,rmdirs) 1284 $(call cmd,rmfiles) 1285 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1286 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 1287 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \ 1288 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 1289 -o -name '*.symtypes' -o -name 'modules.order' \ 1290 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 1291 -o -name '*.gcno' \) -type f -print | xargs rm -f 1292 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1293 -path './nand_spl/*' -type l -print | xargs rm -f 1294 1295# clobber 1296# 1297clobber: rm-dirs := $(CLOBBER_DIRS) 1298clobber: rm-files := $(CLOBBER_FILES) 1299 1300PHONY += clobber 1301 1302clobber: clean 1303 $(call cmd,rmdirs) 1304 $(call cmd,rmfiles) 1305 1306# mrproper - Delete all generated files, including .config 1307# 1308mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 1309mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 1310mrproper-dirs := $(addprefix _mrproper_,scripts) 1311 1312PHONY += $(mrproper-dirs) mrproper archmrproper 1313$(mrproper-dirs): 1314 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 1315 1316mrproper: clobber $(mrproper-dirs) 1317 $(call cmd,rmdirs) 1318 $(call cmd,rmfiles) 1319 @rm -f arch/*/include/asm/arch arch/*/include/asm/proc 1320 1321# distclean 1322# 1323PHONY += distclean 1324 1325distclean: mrproper 1326 @find $(srctree) $(RCS_FIND_IGNORE) \ 1327 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 1328 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 1329 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 1330 -o -name '*.pyc' \) \ 1331 -type f -print | xargs rm -f 1332 1333backup: 1334 F=`basename $(srctree)` ; cd .. ; \ 1335 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 1336 1337help: 1338 @echo 'Cleaning targets:' 1339 @echo ' clean - Remove most generated files but keep the config and' 1340 @echo ' necessities for testing u-boot' 1341 @echo ' clobber - Remove most generated files but keep the config' 1342 @echo ' mrproper - Remove all generated files + config + various backup files' 1343 @echo ' distclean - mrproper + remove editor backup and patch files' 1344 @echo '' 1345# uncomment after adding Kconfig feature 1346# @echo 'Configuration targets:' 1347# @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 1348# @echo '' 1349 @echo 'Other generic targets:' 1350 @echo ' all - Build all necessary images depending on configuration' 1351 @echo ' u-boot - Build the bare u-boot' 1352 @echo ' dir/ - Build all files in dir and below' 1353 @echo ' dir/file.[oisS] - Build specified target only' 1354 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 1355 @echo ' (requires a recent binutils and recent build (System.map))' 1356 @echo ' tags/TAGS - Generate tags file for editors' 1357 @echo ' cscope - Generate cscope index' 1358 @echo ' ubootrelease - Output the release version string' 1359 @echo ' ubootversion - Output the version stored in Makefile' 1360 @echo '' 1361 @echo 'Static analysers' 1362 @echo ' checkstack - Generate a list of stack hogs' 1363 @echo '' 1364 @echo 'Documentation targets:' 1365 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp 1366 @echo '' 1367 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 1368 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 1369 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 1370 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 1371 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 1372 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 1373 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 1374 @echo ' 1: warnings which may be relevant and do not occur too often' 1375 @echo ' 2: warnings which occur quite often but may still be relevant' 1376 @echo ' 3: more obscure warnings, can most likely be ignored' 1377 @echo ' Multiple levels can be combined with W=12 or W=123' 1378 @echo '' 1379 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 1380 @echo 'For further info see the ./README file' 1381 1382 1383# Documentation targets 1384# --------------------------------------------------------------------------- 1385%docs: scripts_basic FORCE 1386 $(Q)$(MAKE) $(build)=scripts build_docproc 1387 $(Q)$(MAKE) $(build)=doc/DocBook $@ 1388 1389# Dummies... 1390PHONY += prepare scripts 1391prepare: ; 1392scripts: ; 1393 1394endif #ifeq ($(config-targets),1) 1395endif #ifeq ($(mixed-targets),1) 1396 1397PHONY += checkstack ubootrelease ubootversion 1398 1399checkstack: 1400 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 1401 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 1402 1403ubootrelease: 1404 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1405 1406ubootversion: 1407 @echo $(UBOOTVERSION) 1408 1409# Single targets 1410# --------------------------------------------------------------------------- 1411# Single targets are compatible with: 1412# - build with mixed source and output 1413# - build with separate output dir 'make O=...' 1414# - external modules 1415# 1416# target-dir => where to store outputfile 1417# build-dir => directory in kernel source tree to use 1418 1419ifeq ($(KBUILD_EXTMOD),) 1420 build-dir = $(patsubst %/,%,$(dir $@)) 1421 target-dir = $(dir $@) 1422else 1423 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 1424 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 1425 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 1426endif 1427 1428%.s: %.c prepare scripts FORCE 1429 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1430%.i: %.c prepare scripts FORCE 1431 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1432%.o: %.c prepare scripts FORCE 1433 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1434%.lst: %.c prepare scripts FORCE 1435 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1436%.s: %.S prepare scripts FORCE 1437 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1438%.o: %.S prepare scripts FORCE 1439 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1440%.symtypes: %.c prepare scripts FORCE 1441 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1442 1443# Modules 1444/: prepare scripts FORCE 1445 $(cmd_crmodverdir) 1446 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1447 $(build)=$(build-dir) 1448%/: prepare scripts FORCE 1449 $(cmd_crmodverdir) 1450 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1451 $(build)=$(build-dir) 1452%.ko: prepare scripts FORCE 1453 $(cmd_crmodverdir) 1454 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1455 $(build)=$(build-dir) $(@:.ko=.o) 1456 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1457 1458# FIXME Should go into a make.lib or something 1459# =========================================================================== 1460 1461quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 1462 cmd_rmdirs = rm -rf $(rm-dirs) 1463 1464quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 1465 cmd_rmfiles = rm -f $(rm-files) 1466 1467# read all saved command lines 1468 1469targets := $(wildcard $(sort $(targets))) 1470cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 1471 1472ifneq ($(cmd_files),) 1473 $(cmd_files): ; # Do not try to update included dependency files 1474 include $(cmd_files) 1475endif 1476 1477# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir 1478# Usage: 1479# $(Q)$(MAKE) $(clean)=dir 1480clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj 1481 1482endif # skip-makefile 1483 1484PHONY += FORCE 1485FORCE: 1486 1487# Declare the contents of the .PHONY variable as phony. We keep that 1488# information in a variable so we can use it in if_changed and friends. 1489.PHONY: $(PHONY) 1490