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 := $(O) 110endif 111 112# That's our default target when none is given on the command line 113PHONY := _all 114_all: 115 116# Cancel implicit rules on top Makefile 117$(CURDIR)/Makefile Makefile: ; 118 119ifneq ($(KBUILD_OUTPUT),) 120# Invoke a second make in the output directory, passing relevant variables 121# check that the output directory actually exists 122saved-output := $(KBUILD_OUTPUT) 123KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \ 124 && /bin/pwd) 125$(if $(KBUILD_OUTPUT),, \ 126 $(error failed to create output directory "$(saved-output)")) 127 128PHONY += $(MAKECMDGOALS) sub-make 129 130$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make 131 @: 132 133sub-make: FORCE 134 $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \ 135 KBUILD_SRC=$(CURDIR) \ 136 KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \ 137 $(filter-out _all sub-make,$(MAKECMDGOALS)) 138 139# Leave processing to above invocation of make 140skip-makefile := 1 141endif # ifneq ($(KBUILD_OUTPUT),) 142endif # ifeq ($(KBUILD_SRC),) 143 144# We process the rest of the Makefile if this is the final invocation of make 145ifeq ($(skip-makefile),) 146 147# If building an external module we do not care about the all: rule 148# but instead _all depend on modules 149PHONY += all 150ifeq ($(KBUILD_EXTMOD),) 151_all: all 152else 153_all: modules 154endif 155 156srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR)) 157objtree := $(CURDIR) 158src := $(srctree) 159obj := $(objtree) 160 161VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) 162 163export srctree objtree VPATH 164 165# Make sure CDPATH settings don't interfere 166unexport CDPATH 167 168######################################################################### 169 170HOSTARCH := $(shell uname -m | \ 171 sed -e s/i.86/x86/ \ 172 -e s/sun4u/sparc64/ \ 173 -e s/arm.*/arm/ \ 174 -e s/sa110/arm/ \ 175 -e s/ppc64/powerpc/ \ 176 -e s/ppc/powerpc/ \ 177 -e s/macppc/powerpc/\ 178 -e s/sh.*/sh/) 179 180HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \ 181 sed -e 's/\(cygwin\).*/cygwin/') 182 183export HOSTARCH HOSTOS 184 185######################################################################### 186 187# set default to nothing for native builds 188ifeq ($(HOSTARCH),$(ARCH)) 189CROSS_COMPILE ?= 190endif 191 192KCONFIG_CONFIG ?= .config 193export KCONFIG_CONFIG 194 195# SHELL used by kbuild 196CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ 197 else if [ -x /bin/bash ]; then echo /bin/bash; \ 198 else echo sh; fi ; fi) 199 200HOSTCC = gcc 201HOSTCXX = g++ 202HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer 203HOSTCXXFLAGS = -O2 204 205ifeq ($(HOSTOS),cygwin) 206HOSTCFLAGS += -ansi 207endif 208 209# Mac OS X / Darwin's C preprocessor is Apple specific. It 210# generates numerous errors and warnings. We want to bypass it 211# and use GNU C's cpp. To do this we pass the -traditional-cpp 212# option to the compiler. Note that the -traditional-cpp flag 213# DOES NOT have the same semantics as GNU C's flag, all it does 214# is invoke the GNU preprocessor in stock ANSI/ISO C fashion. 215# 216# Apple's linker is similar, thanks to the new 2 stage linking 217# multiple symbol definitions are treated as errors, hence the 218# -multiply_defined suppress option to turn off this error. 219# 220ifeq ($(HOSTOS),darwin) 221# get major and minor product version (e.g. '10' and '6' for Snow Leopard) 222DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.') 223DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.') 224 225os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \ 226 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;) 227 228# Snow Leopards build environment has no longer restrictions as described above 229HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc") 230HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp") 231HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress") 232endif 233 234# Decide whether to build built-in, modular, or both. 235# Normally, just do built-in. 236 237KBUILD_MODULES := 238KBUILD_BUILTIN := 1 239 240# If we have only "make modules", don't compile built-in objects. 241# When we're building modules with modversions, we need to consider 242# the built-in objects during the descend as well, in order to 243# make sure the checksums are up to date before we record them. 244 245ifeq ($(MAKECMDGOALS),modules) 246 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) 247endif 248 249# If we have "make <whatever> modules", compile modules 250# in addition to whatever we do anyway. 251# Just "make" or "make all" shall build modules as well 252 253# U-Boot does not need modules 254#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) 255# KBUILD_MODULES := 1 256#endif 257 258#ifeq ($(MAKECMDGOALS),) 259# KBUILD_MODULES := 1 260#endif 261 262export KBUILD_MODULES KBUILD_BUILTIN 263export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD 264 265# Beautify output 266# --------------------------------------------------------------------------- 267# 268# Normally, we echo the whole command before executing it. By making 269# that echo $($(quiet)$(cmd)), we now have the possibility to set 270# $(quiet) to choose other forms of output instead, e.g. 271# 272# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ 273# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< 274# 275# If $(quiet) is empty, the whole command will be printed. 276# If it is set to "quiet_", only the short version will be printed. 277# If it is set to "silent_", nothing will be printed at all, since 278# the variable $(silent_cmd_cc_o_c) doesn't exist. 279# 280# A simple variant is to prefix commands with $(Q) - that's useful 281# for commands that shall be hidden in non-verbose mode. 282# 283# $(Q)ln $@ :< 284# 285# If KBUILD_VERBOSE equals 0 then the above command will be hidden. 286# If KBUILD_VERBOSE equals 1 then the above command is displayed. 287 288ifeq ($(KBUILD_VERBOSE),1) 289 quiet = 290 Q = 291else 292 quiet=quiet_ 293 Q = @ 294endif 295 296# If the user is running make -s (silent mode), suppress echoing of 297# commands 298 299ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4 300ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),) 301 quiet=silent_ 302endif 303else # make-3.8x 304ifneq ($(filter s% -s%,$(MAKEFLAGS)),) 305 quiet=silent_ 306endif 307endif 308 309export quiet Q KBUILD_VERBOSE 310 311# Look for make include files relative to root of kernel src 312MAKEFLAGS += --include-dir=$(srctree) 313 314# We need some generic definitions (do not try to remake the file). 315$(srctree)/scripts/Kbuild.include: ; 316include $(srctree)/scripts/Kbuild.include 317 318# Make variables (CC, etc...) 319 320AS = $(CROSS_COMPILE)as 321# Always use GNU ld 322ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),) 323LD = $(CROSS_COMPILE)ld.bfd 324else 325LD = $(CROSS_COMPILE)ld 326endif 327CC = $(CROSS_COMPILE)gcc 328CPP = $(CC) -E 329AR = $(CROSS_COMPILE)ar 330NM = $(CROSS_COMPILE)nm 331LDR = $(CROSS_COMPILE)ldr 332STRIP = $(CROSS_COMPILE)strip 333OBJCOPY = $(CROSS_COMPILE)objcopy 334OBJDUMP = $(CROSS_COMPILE)objdump 335AWK = awk 336PERL = perl 337PYTHON = python 338DTC = dtc 339CHECK = sparse 340 341CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ 342 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF) 343 344KBUILD_CPPFLAGS := -D__KERNEL__ 345 346KBUILD_CFLAGS := -Wall -Wstrict-prototypes \ 347 -Wno-format-security \ 348 -fno-builtin -ffreestanding 349KBUILD_AFLAGS := -D__ASSEMBLY__ 350 351# Read UBOOTRELEASE from include/config/uboot.release (if it exists) 352UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null) 353UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) 354 355export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION 356export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR 357export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC 358export CPP AR NM LDR STRIP OBJCOPY OBJDUMP 359export MAKE AWK PERL PYTHON 360export HOSTCXX HOSTCXXFLAGS DTC CHECK CHECKFLAGS 361 362export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS 363export KBUILD_CFLAGS KBUILD_AFLAGS 364 365# When compiling out-of-tree modules, put MODVERDIR in the module 366# tree rather than in the kernel tree. The kernel tree might 367# even be read-only. 368export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions 369 370# Files to ignore in find ... statements 371 372export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ 373 -name CVS -o -name .pc -o -name .hg -o -name .git \) \ 374 -prune -o 375export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ 376 --exclude CVS --exclude .pc --exclude .hg --exclude .git 377 378# =========================================================================== 379# Rules shared between *config targets and build targets 380 381# Basic helpers built in scripts/ 382PHONY += scripts_basic 383scripts_basic: 384 $(Q)$(MAKE) $(build)=scripts/basic 385 $(Q)rm -f .tmp_quiet_recordmcount 386 387# To avoid any implicit rule to kick in, define an empty command. 388scripts/basic/%: scripts_basic ; 389 390PHONY += outputmakefile 391# outputmakefile generates a Makefile in the output directory, if using a 392# separate output directory. This allows convenient use of make in the 393# output directory. 394outputmakefile: 395ifneq ($(KBUILD_SRC),) 396 $(Q)ln -fsn $(srctree) source 397 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ 398 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) 399endif 400 401# To make sure we do not include .config for any of the *config targets 402# catch them early, and hand them over to scripts/kconfig/Makefile 403# It is allowed to specify more targets when calling make, including 404# mixing *config targets and build targets. 405# For example 'make oldconfig all'. 406# Detect when mixed targets is specified, and make a second invocation 407# of make so .config is not included in this case either (for *config). 408 409version_h := include/generated/version_autogenerated.h 410timestamp_h := include/generated/timestamp_autogenerated.h 411 412no-dot-config-targets := clean clobber mrproper distclean \ 413 help %docs check% coccicheck \ 414 ubootversion backup tools-only 415 416config-targets := 0 417mixed-targets := 0 418dot-config := 1 419 420ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) 421 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) 422 dot-config := 0 423 endif 424endif 425 426ifeq ($(KBUILD_EXTMOD),) 427 ifneq ($(filter config %config,$(MAKECMDGOALS)),) 428 config-targets := 1 429 ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) 430 mixed-targets := 1 431 endif 432 endif 433endif 434 435ifeq ($(mixed-targets),1) 436# =========================================================================== 437# We're called with mixed targets (*config and build targets). 438# Handle them one by one. 439 440PHONY += $(MAKECMDGOALS) __build_one_by_one 441 442$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one 443 @: 444 445__build_one_by_one: 446 $(Q)set -e; \ 447 for i in $(MAKECMDGOALS); do \ 448 $(MAKE) -f $(srctree)/Makefile $$i; \ 449 done 450 451else 452ifeq ($(config-targets),1) 453# =========================================================================== 454# *config targets only - make sure prerequisites are updated, and descend 455# in scripts/kconfig to make the *config target 456 457KBUILD_DEFCONFIG := sandbox_defconfig 458export KBUILD_DEFCONFIG KBUILD_KCONFIG 459 460config: scripts_basic outputmakefile FORCE 461 (Q)$(MAKE) $(build)=scripts/kconfig $@ 462 463%config: scripts_basic outputmakefile FORCE 464 +$(Q)$(CONFIG_SHELL) $(srctree)/scripts/multiconfig.sh $@ 465 466else 467# =========================================================================== 468# Build targets only - this includes vmlinux, arch specific targets, clean 469# targets and others. In general all targets except *config targets. 470 471ifeq ($(dot-config),1) 472# Read in config 473-include include/config/auto.conf 474 475# Read in dependencies to all Kconfig* files, make sure to run 476# oldconfig if changes are detected. 477-include include/config/auto.conf.cmd 478 479# To avoid any implicit rule to kick in, define an empty command 480$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; 481 482# If .config is newer than include/config/auto.conf, someone tinkered 483# with it and forgot to run make oldconfig. 484# if auto.conf.cmd is missing then we are probably in a cleaned tree so 485# we execute the config step to be sure to catch updated Kconfig files 486include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd 487 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig 488 489-include include/autoconf.mk 490-include include/autoconf.mk.dep 491 492# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf 493# is up-to-date. When we switch to a different board configuration, old CONFIG 494# macros are still remaining in include/config/auto.conf. Without the following 495# gimmick, wrong config.mk would be included leading nasty warnings/errors. 496autoconf_is_current := $(if $(wildcard $(KCONFIG_CONFIG)),$(shell find . \ 497 -path ./include/config/auto.conf -newer $(KCONFIG_CONFIG))) 498ifneq ($(autoconf_is_current),) 499include $(srctree)/config.mk 500endif 501 502# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use 503# that (or fail if absent). Otherwise, search for a linker script in a 504# standard location. 505 506ifndef LDSCRIPT 507 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug 508 ifdef CONFIG_SYS_LDSCRIPT 509 # need to strip off double quotes 510 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%) 511 endif 512endif 513 514# If there is no specified link script, we look in a number of places for it 515ifndef LDSCRIPT 516 ifeq ($(wildcard $(LDSCRIPT)),) 517 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds 518 endif 519 ifeq ($(wildcard $(LDSCRIPT)),) 520 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds 521 endif 522 ifeq ($(wildcard $(LDSCRIPT)),) 523 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds 524 endif 525endif 526 527else 528# Dummy target needed, because used as prerequisite 529include/config/auto.conf: ; 530endif # $(dot-config) 531 532KBUILD_CFLAGS += -Os #-fomit-frame-pointer 533 534ifdef BUILD_TAG 535KBUILD_CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"' 536endif 537 538KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 539 540KBUILD_CFLAGS += -g 541# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 542# option to the assembler. 543KBUILD_AFLAGS += -g 544 545# Report stack usage if supported 546ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y) 547 KBUILD_CFLAGS += -fstack-usage 548endif 549 550KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) 551 552# turn jbsr into jsr for m68k 553ifeq ($(ARCH),m68k) 554ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4) 555KBUILD_AFLAGS += -Wa,-gstabs,-S 556endif 557endif 558 559# Prohibit date/time macros, which would make the build non-deterministic 560KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 561 562ifneq ($(CONFIG_SYS_TEXT_BASE),) 563KBUILD_CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE) 564endif 565 566export CONFIG_SYS_TEXT_BASE 567 568include $(srctree)/scripts/Makefile.extrawarn 569 570# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 571KBUILD_CPPFLAGS += $(KCPPFLAGS) 572KBUILD_AFLAGS += $(KAFLAGS) 573KBUILD_CFLAGS += $(KCFLAGS) 574 575# Use UBOOTINCLUDE when you must reference the include/ directory. 576# Needed to be compatible with the O= option 577UBOOTINCLUDE := \ 578 -Iinclude \ 579 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 580 -I$(srctree)/arch/$(ARCH)/include \ 581 -include $(srctree)/include/linux/kconfig.h 582 583NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 584CHECKFLAGS += $(NOSTDINC_FLAGS) 585 586# FIX ME 587cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 588 $(NOSTDINC_FLAGS) 589c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 590 591######################################################################### 592# U-Boot objects....order is important (i.e. start must be first) 593 594head-y := $(CPUDIR)/start.o 595head-$(CONFIG_4xx) += arch/powerpc/cpu/ppc4xx/resetvec.o 596head-$(CONFIG_MPC85xx) += arch/powerpc/cpu/mpc85xx/resetvec.o 597 598HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 599 600libs-y += lib/ 601libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 602libs-y += $(CPUDIR)/ 603ifdef SOC 604libs-y += $(CPUDIR)/$(SOC)/ 605endif 606libs-$(CONFIG_OF_EMBED) += dts/ 607libs-y += arch/$(ARCH)/lib/ 608libs-y += fs/ 609libs-y += net/ 610libs-y += disk/ 611libs-y += drivers/ 612libs-$(CONFIG_DM) += drivers/core/ 613libs-y += drivers/dma/ 614libs-y += drivers/gpio/ 615libs-y += drivers/i2c/ 616libs-y += drivers/input/ 617libs-y += drivers/mmc/ 618libs-y += drivers/mtd/ 619libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/ 620libs-y += drivers/mtd/onenand/ 621libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/ 622libs-y += drivers/mtd/spi/ 623libs-y += drivers/net/ 624libs-y += drivers/net/phy/ 625libs-y += drivers/pci/ 626libs-y += drivers/power/ \ 627 drivers/power/fuel_gauge/ \ 628 drivers/power/mfd/ \ 629 drivers/power/pmic/ \ 630 drivers/power/battery/ 631libs-y += drivers/spi/ 632libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/ 633libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ 634libs-y += drivers/serial/ 635libs-y += drivers/usb/eth/ 636libs-y += drivers/usb/gadget/ 637libs-y += drivers/usb/host/ 638libs-y += drivers/usb/musb/ 639libs-y += drivers/usb/musb-new/ 640libs-y += drivers/usb/phy/ 641libs-y += drivers/usb/ulpi/ 642libs-y += common/ 643libs-y += lib/libfdt/ 644libs-$(CONFIG_API) += api/ 645libs-$(CONFIG_HAS_POST) += post/ 646libs-y += test/ 647libs-y += test/dm/ 648libs-$(CONFIG_DM_DEMO) += drivers/demo/ 649 650ifneq (,$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35 mxs vf610)) 651libs-y += arch/$(ARCH)/imx-common/ 652endif 653 654libs-$(CONFIG_ARM) += arch/arm/cpu/ 655libs-$(CONFIG_PPC) += arch/powerpc/cpu/ 656 657libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 658 659libs-y := $(sort $(libs-y)) 660 661u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 662 663u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 664 665libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 666 667u-boot-init := $(head-y) 668u-boot-main := $(libs-y) 669 670 671# Add GCC lib 672ifdef CONFIG_USE_PRIVATE_LIBGCC 673ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 674PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 675else 676PLATFORM_LIBGCC = -L $(CONFIG_USE_PRIVATE_LIBGCC) -lgcc 677endif 678else 679PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 680endif 681PLATFORM_LIBS += $(PLATFORM_LIBGCC) 682export PLATFORM_LIBS 683export PLATFORM_LIBGCC 684 685# Special flags for CPP when processing the linker script. 686# Pass the version down so we can handle backwards compatibility 687# on the fly. 688LDPPFLAGS += \ 689 -include $(srctree)/include/u-boot/u-boot.lds.h \ 690 -DCPUDIR=$(CPUDIR) \ 691 $(shell $(LD) --version | \ 692 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 693 694######################################################################### 695######################################################################### 696 697ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 698BOARD_SIZE_CHECK = \ 699 @actual=`wc -c $@ | awk '{print $$1}'`; \ 700 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \ 701 if test $$actual -gt $$limit; then \ 702 echo "$@ exceeds file size limit:" >&2 ; \ 703 echo " limit: $$limit bytes" >&2 ; \ 704 echo " actual: $$actual bytes" >&2 ; \ 705 echo " excess: $$((actual - limit)) bytes" >&2; \ 706 exit 1; \ 707 fi 708else 709BOARD_SIZE_CHECK = 710endif 711 712# Statically apply RELA-style relocations (currently arm64 only) 713ifneq ($(CONFIG_STATIC_RELA),) 714# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base 715DO_STATIC_RELA = \ 716 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \ 717 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \ 718 tools/relocate-rela $(2) $(3) $$start $$end 719else 720DO_STATIC_RELA = 721endif 722 723# Always append ALL so that arch config.mk's can add custom ones 724ALL-y += u-boot.srec u-boot.bin System.map binary_size_check 725 726ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin 727ifeq ($(CONFIG_SPL_FSL_PBL),y) 728ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 729else 730ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 731endif 732ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin 733ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 734ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 735ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb u-boot-dtb.bin 736ifeq ($(CONFIG_SPL_FRAMEWORK),y) 737ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 738endif 739ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb 740ifneq ($(CONFIG_SPL_TARGET),) 741ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 742endif 743ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf 744 745# enable combined SPL/u-boot/dtb rules for tegra 746ifneq ($(CONFIG_TEGRA),) 747ifeq ($(CONFIG_SPL),y) 748ifeq ($(CONFIG_OF_SEPARATE),y) 749ALL-y += u-boot-dtb-tegra.bin 750else 751ALL-y += u-boot-nodtb-tegra.bin 752endif 753endif 754endif 755 756LDFLAGS_u-boot += $(LDFLAGS_FINAL) 757ifneq ($(CONFIG_SYS_TEXT_BASE),) 758LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 759endif 760 761quiet_cmd_objcopy = OBJCOPY $@ 762cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 763 764quiet_cmd_mkimage = MKIMAGE $@ 765cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 766 $(if $(KBUILD_VERBOSE:1=), >/dev/null) 767 768quiet_cmd_cat = CAT $@ 769cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 770 771append = cat $(filter-out $< $(PHONY), $^) >> $@ 772 773quiet_cmd_pad_cat = CAT $@ 774cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@ 775 776all: $(ALL-y) 777 778PHONY += dtbs 779dtbs dts/dt.dtb: checkdtc u-boot 780 $(Q)$(MAKE) $(build)=dts dtbs 781 782u-boot-dtb.bin: u-boot.bin dts/dt.dtb FORCE 783 $(call if_changed,cat) 784 785%.imx: %.bin 786 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 787 788quiet_cmd_copy = COPY $@ 789 cmd_copy = cp $< $@ 790 791u-boot.dtb: dts/dt.dtb 792 $(call cmd,copy) 793 794OBJCOPYFLAGS_u-boot.hex := -O ihex 795 796OBJCOPYFLAGS_u-boot.srec := -O srec 797 798u-boot.hex u-boot.srec: u-boot FORCE 799 $(call if_changed,objcopy) 800 801OBJCOPYFLAGS_u-boot.bin := -O binary 802 803binary_size_check: u-boot.bin FORCE 804 @file_size=$(shell wc -c u-boot.bin | awk '{print $$1}') ; \ 805 map_size=$(shell cat u-boot.map | \ 806 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \ 807 | sed 's/0X//g' \ 808 | bc); \ 809 if [ "" != "$$map_size" ]; then \ 810 if test $$map_size -ne $$file_size; then \ 811 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ 812 echo " but u-boot.bin shows $$file_size" >&2 ; \ 813 exit 1; \ 814 fi \ 815 fi 816 817u-boot.bin: u-boot FORCE 818 $(call if_changed,objcopy) 819 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE)) 820 $(BOARD_SIZE_CHECK) 821 822u-boot.ldr: u-boot 823 $(CREATE_LDR_ENV) 824 $(LDR) -T $(CONFIG_BFIN_CPU) -c $@ $< $(LDR_FLAGS) 825 $(BOARD_SIZE_CHECK) 826 827OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 828 829OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 830 831u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 832 $(call if_changed,objcopy) 833 834# 835# U-Boot entry point, needed for booting of full-blown U-Boot 836# from the SPL U-Boot version. 837# 838ifndef CONFIG_SYS_UBOOT_START 839CONFIG_SYS_UBOOT_START := 0 840endif 841 842MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 843 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 844 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 845 846MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 847 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 848 849MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 850 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 851 852u-boot.img u-boot.kwb u-boot.pbl: u-boot.bin FORCE 853 $(call if_changed,mkimage) 854 855MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 856 857u-boot-dtb.img: u-boot-dtb.bin FORCE 858 $(call if_changed,mkimage) 859 860u-boot.sha1: u-boot.bin 861 tools/ubsha1 u-boot.bin 862 863u-boot.dis: u-boot 864 $(OBJDUMP) -d $< > $@ 865 866ifdef CONFIG_TPL 867SPL_PAYLOAD := tpl/u-boot-with-tpl.bin 868else 869SPL_PAYLOAD := u-boot.bin 870endif 871 872OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 873 --pad-to=$(CONFIG_SPL_PAD_TO) 874u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE 875 $(call if_changed,pad_cat) 876 877OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 878 --pad-to=$(CONFIG_TPL_PAD_TO) 879tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 880 $(call if_changed,pad_cat) 881 882SPL: spl/u-boot-spl.bin FORCE 883 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 884 885u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE 886 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 887 888MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE) 889 890u-boot.ubl: u-boot-with-spl.bin FORCE 891 $(call if_changed,mkimage) 892 893MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \ 894 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ 895 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 896spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 897 $(call if_changed,mkimage) 898 899OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 900u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 901 $(call if_changed,pad_cat) 902 903u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 904 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 905u-boot.sb: u-boot.bin spl/u-boot-spl.bin 906 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 907 908# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL. 909# Both images are created using mkimage (crc etc), so that the ROM 910# bootloader can check its integrity. Padding needs to be done to the 911# SPL image (with mkimage header) and not the binary. Otherwise the resulting image 912# which is loaded/copied by the ROM bootloader to SRAM doesn't fit. 913# The resulting image containing both U-Boot images is called u-boot.spr 914MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 915 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 916spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 917 $(call if_changed,mkimage) 918 919OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 920 --gap-fill=0xff 921u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE 922 $(call if_changed,pad_cat) 923 924MKIMAGEFLAGS_u-boot-spl.gph = -A $(ARCH) -T gpimage -C none \ 925 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n SPL 926spl/u-boot-spl.gph: spl/u-boot-spl.bin FORCE 927 $(call if_changed,mkimage) 928 929OBJCOPYFLAGS_u-boot-spi.gph = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 930 --gap-fill=0 931u-boot-spi.gph: spl/u-boot-spl.gph u-boot.img FORCE 932 $(call if_changed,pad_cat) 933 934MKIMAGEFLAGS_u-boot-nand.gph = -A $(ARCH) -T gpimage -C none \ 935 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) -n U-Boot 936u-boot-nand.gph: u-boot.bin FORCE 937 $(call if_changed,mkimage) 938 @dd if=/dev/zero bs=8 count=1 2>/dev/null >> $@ 939 940ifneq ($(CONFIG_SUNXI),) 941OBJCOPYFLAGS_u-boot-sunxi-with-spl.bin = -I binary -O binary \ 942 --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff 943u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img FORCE 944 $(call if_changed,pad_cat) 945endif 946 947ifneq ($(CONFIG_TEGRA),) 948OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 949u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot.bin FORCE 950 $(call if_changed,pad_cat) 951 952ifeq ($(CONFIG_OF_SEPARATE),y) 953u-boot-dtb-tegra.bin: u-boot-nodtb-tegra.bin dts/dt.dtb FORCE 954 $(call if_changed,cat) 955endif 956endif 957 958u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 959 $(call if_changed,cat) 960 961#Add a target to create boot binary having SPL binary in PBI format 962#concatenated with u-boot binary. It is need by PowerPC SoC having 963#internal SRAM <= 512KB. 964MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 965 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 966 967spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 968 $(call if_changed,mkimage) 969 970OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 971 --gap-fill=0xff 972 973u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl u-boot.bin FORCE 974 $(call if_changed,pad_cat) 975 976# PPC4xx needs the SPL at the end of the image, since the reset vector 977# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target 978# and need to introduce a new build target with the full blown U-Boot 979# at the start padded up to the start of the SPL image. And then concat 980# the SPL image to the end. 981 982OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ 983 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff 984u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE 985 $(call if_changed,pad_cat) 986 987# Create a new ELF from a raw binary file. This is useful for arm64 988# where static relocation needs to be performed on the raw binary, 989# but certain simulators only accept an ELF file (but don't do the 990# relocation). 991# FIXME refactor dts/Makefile to share target/arch detection 992u-boot.elf: u-boot.bin 993 @$(OBJCOPY) -B aarch64 -I binary -O elf64-littleaarch64 \ 994 $< u-boot-elf.o 995 @$(LD) u-boot-elf.o -o $@ \ 996 --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \ 997 -Ttext=$(CONFIG_SYS_TEXT_BASE) 998 999# Rule to link u-boot 1000# May be overridden by arch/$(ARCH)/config.mk 1001quiet_cmd_u-boot__ ?= LD $@ 1002 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1003 -T u-boot.lds $(u-boot-init) \ 1004 --start-group $(u-boot-main) --end-group \ 1005 $(PLATFORM_LIBS) -Map u-boot.map 1006 1007quiet_cmd_smap = GEN common/system_map.o 1008cmd_smap = \ 1009 smap=`$(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 1014u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds 1015 $(call if_changed,u-boot__) 1016ifeq ($(CONFIG_KALLSYMS),y) 1017 $(call cmd,smap) 1018 $(call cmd,u-boot__) common/system_map.o 1019endif 1020 1021# The actual objects are generated when descending, 1022# make sure no implicit rule kicks in 1023$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1024 1025# Handle descending into subdirectories listed in $(vmlinux-dirs) 1026# Preset locale variables to speed up the build process. Limit locale 1027# tweaks to this spot to avoid wrong language settings when running 1028# make menuconfig etc. 1029# Error messages still appears in the original language 1030 1031PHONY += $(u-boot-dirs) 1032$(u-boot-dirs): prepare scripts 1033 $(Q)$(MAKE) $(build)=$@ 1034 1035tools: prepare 1036# The "tools" are needed early 1037$(filter-out tools, $(u-boot-dirs)): tools 1038# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1039# is "yes"), so compile examples after U-Boot is compiled. 1040examples: $(filter-out examples, $(u-boot-dirs)) 1041 1042define filechk_uboot.release 1043 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1044endef 1045 1046# Store (new) UBOOTRELEASE string in include/config/uboot.release 1047include/config/uboot.release: include/config/auto.conf FORCE 1048 $(call filechk,uboot.release) 1049 1050 1051# Things we need to do before we recursively start building the kernel 1052# or the modules are listed in "prepare". 1053# A multi level approach is used. prepareN is processed before prepareN-1. 1054# archprepare is used in arch Makefiles and when processed asm symlink, 1055# version.h and scripts_basic is processed / created. 1056 1057# Listed in dependency order 1058PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1059 1060# prepare3 is used to check if we are building in a separate output directory, 1061# and if so do: 1062# 1) Check that make has not been executed in the kernel src $(srctree) 1063prepare3: include/config/uboot.release 1064ifneq ($(KBUILD_SRC),) 1065 @$(kecho) ' Using $(srctree) as source for U-Boot' 1066 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 1067 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1068 echo >&2 " in the '$(srctree)' directory.";\ 1069 /bin/false; \ 1070 fi; 1071endif 1072 1073# prepare2 creates a makefile if using a separate output directory 1074prepare2: prepare3 outputmakefile 1075 1076prepare1: prepare2 $(version_h) $(timestamp_h) \ 1077 include/config/auto.conf 1078ifeq ($(__HAVE_ARCH_GENERIC_BOARD),) 1079ifeq ($(CONFIG_SYS_GENERIC_BOARD),y) 1080 @echo >&2 " Your architecture does not support generic board." 1081 @echo >&2 " Please undefine CONFIG_SYS_GENERIC_BOARD in your board config file." 1082 @/bin/false 1083endif 1084endif 1085ifeq ($(wildcard $(LDSCRIPT)),) 1086 @echo >&2 " Could not find linker script." 1087 @/bin/false 1088endif 1089 1090archprepare: prepare1 scripts_basic 1091 1092prepare0: archprepare FORCE 1093 $(Q)$(MAKE) $(build)=. 1094 1095# All the preparing.. 1096prepare: prepare0 1097 1098# Generate some files 1099# --------------------------------------------------------------------------- 1100 1101define filechk_version.h 1102 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1103 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1104 echo \#define CC_VERSION_STRING \"$$($(CC) --version | head -n 1)\"; \ 1105 echo \#define LD_VERSION_STRING \"$$($(LD) --version | head -n 1)\"; ) 1106endef 1107 1108define filechk_timestamp.h 1109 (LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1110 LC_ALL=C date +'#define U_BOOT_TIME "%T"') 1111endef 1112 1113$(version_h): include/config/uboot.release FORCE 1114 $(call filechk,version.h) 1115 1116$(timestamp_h): $(srctree)/Makefile FORCE 1117 $(call filechk,timestamp.h) 1118 1119# --------------------------------------------------------------------------- 1120 1121PHONY += depend dep 1122depend dep: 1123 @echo '*** Warning: make $@ is unnecessary now.' 1124 1125# --------------------------------------------------------------------------- 1126quiet_cmd_cpp_lds = LDS $@ 1127cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 1128 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 1129 1130u-boot.lds: $(LDSCRIPT) prepare FORCE 1131 $(call if_changed_dep,cpp_lds) 1132 1133spl/u-boot-spl.bin: spl/u-boot-spl 1134 @: 1135spl/u-boot-spl: tools prepare 1136 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all 1137 1138spl/sunxi-spl.bin: spl/u-boot-spl 1139 @: 1140 1141tpl/u-boot-tpl.bin: tools prepare 1142 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all 1143 1144TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) 1145 1146FIND := find 1147FINDFLAGS := -L 1148 1149tags ctags: 1150 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1151 -name '*.[chS]' -print` 1152 1153etags: 1154 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1155 -name '*.[chS]' -print` 1156cscope: 1157 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 1158 cscope.files 1159 cscope -b -q -k 1160 1161SYSTEM_MAP = \ 1162 $(NM) $1 | \ 1163 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 1164 LC_ALL=C sort 1165System.map: u-boot 1166 @$(call SYSTEM_MAP,$<) > $@ 1167 1168checkdtc: 1169 @if test $(call dtc-version) -lt 0104; then \ 1170 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \ 1171 false; \ 1172 fi 1173 1174######################################################################### 1175 1176# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 1177# R_AARCH64_RELATIVE (64-bit). 1178checkarmreloc: u-boot 1179 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 1180 grep R_A | sort -u`"; \ 1181 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 1182 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 1183 echo "$< contains unexpected relocations: $$RELOC"; \ 1184 false; \ 1185 fi 1186 1187env: scripts_basic 1188 $(Q)$(MAKE) $(build)=tools/$@ 1189 1190tools-only: scripts_basic $(version_h) $(timestamp_h) 1191 $(Q)$(MAKE) $(build)=tools 1192 1193tools-all: export HOST_TOOLS_ALL=y 1194tools-all: env tools ; 1195 1196cross_tools: export CROSS_BUILD_TOOLS=y 1197cross_tools: tools ; 1198 1199.PHONY : CHANGELOG 1200CHANGELOG: 1201 git log --no-merges U-Boot-1_1_5.. | \ 1202 unexpand -a | sed -e 's/\s\s*$$//' > $@ 1203 1204include/license.h: tools/bin2header COPYING 1205 cat COPYING | gzip -9 -c | ./tools/bin2header license_gzip > include/license.h 1206######################################################################### 1207 1208### 1209# Cleaning is done on three levels. 1210# make clean Delete most generated files 1211# Leave enough to build external modules 1212# make mrproper Delete the current configuration, and all generated files 1213# make distclean Remove editor backup files, patch leftover files and the like 1214 1215# Directories & files removed with 'make clean' 1216CLEAN_DIRS += $(MODVERDIR) 1217CLEAN_FILES += u-boot.lds include/bmp_logo.h include/bmp_logo_data.h 1218 1219# Directories & files removed with 'make clobber' 1220CLOBBER_DIRS += $(foreach d, spl tpl, $(patsubst %,$d/%, \ 1221 $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) 1222CLOBBER_FILES += u-boot* MLO* SPL System.map 1223 1224# Directories & files removed with 'make mrproper' 1225MRPROPER_DIRS += include/config include/generated spl tpl \ 1226 .tmp_objdiff 1227MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ 1228 ctags etags TAGS cscope* GPATH GTAGS GRTAGS GSYMS 1229 1230# clean - Delete most, but leave enough to build external modules 1231# 1232clean: rm-dirs := $(CLEAN_DIRS) 1233clean: rm-files := $(CLEAN_FILES) 1234 1235clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 1236 1237clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook) 1238 1239PHONY += $(clean-dirs) clean archclean 1240$(clean-dirs): 1241 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1242 1243# TODO: Do not use *.cfgtmp 1244clean: $(clean-dirs) 1245 $(call cmd,rmdirs) 1246 $(call cmd,rmfiles) 1247 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1248 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 1249 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \ 1250 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 1251 -o -name '*.symtypes' -o -name 'modules.order' \ 1252 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 1253 -o -name '*.gcno' \) -type f -print | xargs rm -f 1254 1255# clobber 1256# 1257clobber: rm-dirs := $(CLOBBER_DIRS) 1258clobber: rm-files := $(CLOBBER_FILES) 1259 1260PHONY += clobber 1261 1262clobber: clean 1263 $(call cmd,rmdirs) 1264 $(call cmd,rmfiles) 1265 1266# mrproper - Delete all generated files, including .config 1267# 1268mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 1269mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 1270mrproper-dirs := $(addprefix _mrproper_,scripts) 1271 1272PHONY += $(mrproper-dirs) mrproper archmrproper 1273$(mrproper-dirs): 1274 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 1275 1276mrproper: clobber $(mrproper-dirs) 1277 $(call cmd,rmdirs) 1278 $(call cmd,rmfiles) 1279 @rm -f arch/*/include/asm/arch 1280 1281# distclean 1282# 1283PHONY += distclean 1284 1285distclean: mrproper 1286 @find $(srctree) $(RCS_FIND_IGNORE) \ 1287 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 1288 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 1289 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 1290 -o -name '*.pyc' \) \ 1291 -type f -print | xargs rm -f 1292 @rm -f boards.cfg 1293 1294backup: 1295 F=`basename $(srctree)` ; cd .. ; \ 1296 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 1297 1298help: 1299 @echo 'Cleaning targets:' 1300 @echo ' clean - Remove most generated files but keep the config and' 1301 @echo ' necessities for testing u-boot' 1302 @echo ' clobber - Remove most generated files but keep the config' 1303 @echo ' mrproper - Remove all generated files + config + various backup files' 1304 @echo ' distclean - mrproper + remove editor backup and patch files' 1305 @echo '' 1306 @echo 'Configuration targets:' 1307 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 1308 @echo '' 1309 @echo 'Other generic targets:' 1310 @echo ' all - Build all necessary images depending on configuration' 1311 @echo ' u-boot - Build the bare u-boot' 1312 @echo ' dir/ - Build all files in dir and below' 1313 @echo ' dir/file.[oisS] - Build specified target only' 1314 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 1315 @echo ' (requires a recent binutils and recent build (System.map))' 1316 @echo ' tags/ctags - Generate ctags file for editors' 1317 @echo ' etags - Generate etags file for editors' 1318 @echo ' cscope - Generate cscope index' 1319 @echo ' ubootrelease - Output the release version string' 1320 @echo ' ubootversion - Output the version stored in Makefile' 1321 @echo '' 1322 @echo 'Static analysers' 1323 @echo ' checkstack - Generate a list of stack hogs' 1324 @echo '' 1325 @echo 'Documentation targets:' 1326 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp 1327 @echo '' 1328 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 1329 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 1330 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 1331 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 1332 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 1333 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 1334 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 1335 @echo ' 1: warnings which may be relevant and do not occur too often' 1336 @echo ' 2: warnings which occur quite often but may still be relevant' 1337 @echo ' 3: more obscure warnings, can most likely be ignored' 1338 @echo ' Multiple levels can be combined with W=12 or W=123' 1339 @echo '' 1340 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 1341 @echo 'For further info see the ./README file' 1342 1343 1344# Documentation targets 1345# --------------------------------------------------------------------------- 1346%docs: scripts_basic FORCE 1347 $(Q)$(MAKE) $(build)=scripts build_docproc 1348 $(Q)$(MAKE) $(build)=doc/DocBook $@ 1349 1350# Dummies... 1351PHONY += prepare scripts 1352prepare: ; 1353scripts: ; 1354 1355endif #ifeq ($(config-targets),1) 1356endif #ifeq ($(mixed-targets),1) 1357 1358PHONY += checkstack ubootrelease ubootversion 1359 1360checkstack: 1361 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 1362 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 1363 1364ubootrelease: 1365 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1366 1367ubootversion: 1368 @echo $(UBOOTVERSION) 1369 1370# Single targets 1371# --------------------------------------------------------------------------- 1372# Single targets are compatible with: 1373# - build with mixed source and output 1374# - build with separate output dir 'make O=...' 1375# - external modules 1376# 1377# target-dir => where to store outputfile 1378# build-dir => directory in kernel source tree to use 1379 1380ifeq ($(KBUILD_EXTMOD),) 1381 build-dir = $(patsubst %/,%,$(dir $@)) 1382 target-dir = $(dir $@) 1383else 1384 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 1385 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 1386 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 1387endif 1388 1389%.s: %.c prepare scripts FORCE 1390 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1391%.i: %.c prepare scripts FORCE 1392 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1393%.o: %.c prepare scripts FORCE 1394 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1395%.lst: %.c prepare scripts FORCE 1396 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1397%.s: %.S prepare scripts FORCE 1398 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1399%.o: %.S prepare scripts FORCE 1400 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1401%.symtypes: %.c prepare scripts FORCE 1402 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1403 1404# Modules 1405/: prepare scripts FORCE 1406 $(cmd_crmodverdir) 1407 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1408 $(build)=$(build-dir) 1409%/: prepare scripts FORCE 1410 $(cmd_crmodverdir) 1411 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1412 $(build)=$(build-dir) 1413%.ko: prepare scripts FORCE 1414 $(cmd_crmodverdir) 1415 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1416 $(build)=$(build-dir) $(@:.ko=.o) 1417 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1418 1419# FIXME Should go into a make.lib or something 1420# =========================================================================== 1421 1422quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 1423 cmd_rmdirs = rm -rf $(rm-dirs) 1424 1425quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 1426 cmd_rmfiles = rm -f $(rm-files) 1427 1428# read all saved command lines 1429 1430targets := $(wildcard $(sort $(targets))) 1431cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 1432 1433ifneq ($(cmd_files),) 1434 $(cmd_files): ; # Do not try to update included dependency files 1435 include $(cmd_files) 1436endif 1437 1438# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir 1439# Usage: 1440# $(Q)$(MAKE) $(clean)=dir 1441clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj 1442 1443endif # skip-makefile 1444 1445PHONY += FORCE 1446FORCE: 1447 1448# Declare the contents of the .PHONY variable as phony. We keep that 1449# information in a variable so we can use it in if_changed and friends. 1450.PHONY: $(PHONY) 1451