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 = -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 := $(O) 110endif 111 112# That's our default target when none is given on the command line 113PHONY := _all 114_all: 115 116# Cancel implicit rules on top Makefile 117$(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 # $(dot-config) 531 532ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 533KBUILD_CFLAGS += -Os 534else 535KBUILD_CFLAGS += -O2 536endif 537 538ifdef BUILD_TAG 539KBUILD_CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"' 540endif 541 542KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 543 544KBUILD_CFLAGS += -g 545# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 546# option to the assembler. 547KBUILD_AFLAGS += -g 548 549# Report stack usage if supported 550ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y) 551 KBUILD_CFLAGS += -fstack-usage 552endif 553 554KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) 555 556# turn jbsr into jsr for m68k 557ifeq ($(ARCH),m68k) 558ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4) 559KBUILD_AFLAGS += -Wa,-gstabs,-S 560endif 561endif 562 563# Prohibit date/time macros, which would make the build non-deterministic 564KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 565 566ifneq ($(CONFIG_SYS_TEXT_BASE),) 567KBUILD_CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE) 568endif 569 570export CONFIG_SYS_TEXT_BASE 571 572include $(srctree)/scripts/Makefile.extrawarn 573 574# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 575KBUILD_CPPFLAGS += $(KCPPFLAGS) 576KBUILD_AFLAGS += $(KAFLAGS) 577KBUILD_CFLAGS += $(KCFLAGS) 578 579# Use UBOOTINCLUDE when you must reference the include/ directory. 580# Needed to be compatible with the O= option 581UBOOTINCLUDE := \ 582 -Iinclude \ 583 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 584 -I$(srctree)/arch/$(ARCH)/include \ 585 -include $(srctree)/include/linux/kconfig.h 586 587NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 588CHECKFLAGS += $(NOSTDINC_FLAGS) 589 590# FIX ME 591cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 592 $(NOSTDINC_FLAGS) 593c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 594 595######################################################################### 596# U-Boot objects....order is important (i.e. start must be first) 597 598head-y := $(CPUDIR)/start.o 599head-$(CONFIG_4xx) += arch/powerpc/cpu/ppc4xx/resetvec.o 600head-$(CONFIG_MPC85xx) += arch/powerpc/cpu/mpc85xx/resetvec.o 601 602HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 603 604libs-y += lib/ 605libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 606libs-y += $(CPUDIR)/ 607ifdef SOC 608libs-y += $(CPUDIR)/$(SOC)/ 609endif 610libs-$(CONFIG_OF_EMBED) += dts/ 611libs-y += arch/$(ARCH)/lib/ 612libs-y += fs/ 613libs-y += net/ 614libs-y += disk/ 615libs-y += drivers/ 616libs-$(CONFIG_DM) += drivers/core/ 617libs-y += drivers/dma/ 618libs-y += drivers/gpio/ 619libs-y += drivers/i2c/ 620libs-y += drivers/input/ 621libs-y += drivers/mmc/ 622libs-y += drivers/mtd/ 623libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/ 624libs-y += drivers/mtd/onenand/ 625libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/ 626libs-y += drivers/mtd/spi/ 627libs-y += drivers/net/ 628libs-y += drivers/net/phy/ 629libs-y += drivers/pci/ 630libs-y += drivers/power/ \ 631 drivers/power/fuel_gauge/ \ 632 drivers/power/mfd/ \ 633 drivers/power/pmic/ \ 634 drivers/power/battery/ 635libs-y += drivers/spi/ 636libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/ 637libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ 638libs-y += drivers/serial/ 639libs-y += drivers/usb/eth/ 640libs-y += drivers/usb/gadget/ 641libs-y += drivers/usb/host/ 642libs-y += drivers/usb/musb/ 643libs-y += drivers/usb/musb-new/ 644libs-y += drivers/usb/phy/ 645libs-y += drivers/usb/ulpi/ 646libs-y += common/ 647libs-y += lib/libfdt/ 648libs-$(CONFIG_API) += api/ 649libs-$(CONFIG_HAS_POST) += post/ 650libs-y += test/ 651libs-y += test/dm/ 652libs-$(CONFIG_DM_DEMO) += drivers/demo/ 653 654ifneq (,$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35 mxs vf610)) 655libs-y += arch/$(ARCH)/imx-common/ 656endif 657 658libs-$(CONFIG_ARM) += arch/arm/cpu/ 659libs-$(CONFIG_PPC) += arch/powerpc/cpu/ 660 661libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 662 663libs-y := $(sort $(libs-y)) 664 665u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 666 667u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 668 669libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 670 671u-boot-init := $(head-y) 672u-boot-main := $(libs-y) 673 674 675# Add GCC lib 676ifdef CONFIG_USE_PRIVATE_LIBGCC 677ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 678PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 679else 680PLATFORM_LIBGCC = -L $(CONFIG_USE_PRIVATE_LIBGCC) -lgcc 681endif 682else 683PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 684endif 685PLATFORM_LIBS += $(PLATFORM_LIBGCC) 686export PLATFORM_LIBS 687export PLATFORM_LIBGCC 688 689# Special flags for CPP when processing the linker script. 690# Pass the version down so we can handle backwards compatibility 691# on the fly. 692LDPPFLAGS += \ 693 -include $(srctree)/include/u-boot/u-boot.lds.h \ 694 -DCPUDIR=$(CPUDIR) \ 695 $(shell $(LD) --version | \ 696 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 697 698######################################################################### 699######################################################################### 700 701ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 702BOARD_SIZE_CHECK = \ 703 @actual=`wc -c $@ | awk '{print $$1}'`; \ 704 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \ 705 if test $$actual -gt $$limit; then \ 706 echo "$@ exceeds file size limit:" >&2 ; \ 707 echo " limit: $$limit bytes" >&2 ; \ 708 echo " actual: $$actual bytes" >&2 ; \ 709 echo " excess: $$((actual - limit)) bytes" >&2; \ 710 exit 1; \ 711 fi 712else 713BOARD_SIZE_CHECK = 714endif 715 716# Statically apply RELA-style relocations (currently arm64 only) 717ifneq ($(CONFIG_STATIC_RELA),) 718# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base 719DO_STATIC_RELA = \ 720 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \ 721 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \ 722 tools/relocate-rela $(2) $(3) $$start $$end 723else 724DO_STATIC_RELA = 725endif 726 727# Always append ALL so that arch config.mk's can add custom ones 728ALL-y += u-boot.srec u-boot.bin System.map binary_size_check 729 730ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin 731ifeq ($(CONFIG_SPL_FSL_PBL),y) 732ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 733else 734ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 735endif 736ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin 737ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 738ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 739ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb u-boot-dtb.bin 740ifeq ($(CONFIG_SPL_FRAMEWORK),y) 741ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 742endif 743ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb 744ifneq ($(CONFIG_SPL_TARGET),) 745ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 746endif 747ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf 748 749# enable combined SPL/u-boot/dtb rules for tegra 750ifneq ($(CONFIG_TEGRA),) 751ifeq ($(CONFIG_SPL),y) 752ifeq ($(CONFIG_OF_SEPARATE),y) 753ALL-y += u-boot-dtb-tegra.bin 754else 755ALL-y += u-boot-nodtb-tegra.bin 756endif 757endif 758endif 759 760LDFLAGS_u-boot += $(LDFLAGS_FINAL) 761ifneq ($(CONFIG_SYS_TEXT_BASE),) 762LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 763endif 764 765quiet_cmd_objcopy = OBJCOPY $@ 766cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 767 768quiet_cmd_mkimage = MKIMAGE $@ 769cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 770 $(if $(KBUILD_VERBOSE:1=), >/dev/null) 771 772quiet_cmd_cat = CAT $@ 773cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 774 775append = cat $(filter-out $< $(PHONY), $^) >> $@ 776 777quiet_cmd_pad_cat = CAT $@ 778cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@ 779 780all: $(ALL-y) 781 782PHONY += dtbs 783dtbs dts/dt.dtb: checkdtc u-boot 784 $(Q)$(MAKE) $(build)=dts dtbs 785 786u-boot-dtb.bin: u-boot.bin dts/dt.dtb FORCE 787 $(call if_changed,cat) 788 789%.imx: %.bin 790 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 791 792quiet_cmd_copy = COPY $@ 793 cmd_copy = cp $< $@ 794 795u-boot.dtb: dts/dt.dtb 796 $(call cmd,copy) 797 798OBJCOPYFLAGS_u-boot.hex := -O ihex 799 800OBJCOPYFLAGS_u-boot.srec := -O srec 801 802u-boot.hex u-boot.srec: u-boot FORCE 803 $(call if_changed,objcopy) 804 805OBJCOPYFLAGS_u-boot.bin := -O binary 806 807binary_size_check: u-boot.bin FORCE 808 @file_size=$(shell wc -c u-boot.bin | awk '{print $$1}') ; \ 809 map_size=$(shell cat u-boot.map | \ 810 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \ 811 | sed 's/0X//g' \ 812 | bc); \ 813 if [ "" != "$$map_size" ]; then \ 814 if test $$map_size -ne $$file_size; then \ 815 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ 816 echo " but u-boot.bin shows $$file_size" >&2 ; \ 817 exit 1; \ 818 fi \ 819 fi 820 821u-boot.bin: u-boot FORCE 822 $(call if_changed,objcopy) 823 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE)) 824 $(BOARD_SIZE_CHECK) 825 826u-boot.ldr: u-boot 827 $(CREATE_LDR_ENV) 828 $(LDR) -T $(CONFIG_BFIN_CPU) -c $@ $< $(LDR_FLAGS) 829 $(BOARD_SIZE_CHECK) 830 831OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 832 833OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 834 835u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 836 $(call if_changed,objcopy) 837 838# 839# U-Boot entry point, needed for booting of full-blown U-Boot 840# from the SPL U-Boot version. 841# 842ifndef CONFIG_SYS_UBOOT_START 843CONFIG_SYS_UBOOT_START := 0 844endif 845 846MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 847 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 848 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 849 850MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 851 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 852 853MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 854 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 855 856u-boot.img u-boot.kwb u-boot.pbl: u-boot.bin FORCE 857 $(call if_changed,mkimage) 858 859MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 860 861u-boot-dtb.img: u-boot-dtb.bin FORCE 862 $(call if_changed,mkimage) 863 864u-boot.sha1: u-boot.bin 865 tools/ubsha1 u-boot.bin 866 867u-boot.dis: u-boot 868 $(OBJDUMP) -d $< > $@ 869 870ifdef CONFIG_TPL 871SPL_PAYLOAD := tpl/u-boot-with-tpl.bin 872else 873SPL_PAYLOAD := u-boot.bin 874endif 875 876OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 877 --pad-to=$(CONFIG_SPL_PAD_TO) 878u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE 879 $(call if_changed,pad_cat) 880 881OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 882 --pad-to=$(CONFIG_TPL_PAD_TO) 883tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 884 $(call if_changed,pad_cat) 885 886SPL: spl/u-boot-spl.bin FORCE 887 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 888 889u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE 890 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 891 892MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE) 893 894u-boot.ubl: u-boot-with-spl.bin FORCE 895 $(call if_changed,mkimage) 896 897MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \ 898 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ 899 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 900spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 901 $(call if_changed,mkimage) 902 903OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 904u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 905 $(call if_changed,pad_cat) 906 907u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 908 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 909u-boot.sb: u-boot.bin spl/u-boot-spl.bin 910 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 911 912# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL. 913# Both images are created using mkimage (crc etc), so that the ROM 914# bootloader can check its integrity. Padding needs to be done to the 915# SPL image (with mkimage header) and not the binary. Otherwise the resulting image 916# which is loaded/copied by the ROM bootloader to SRAM doesn't fit. 917# The resulting image containing both U-Boot images is called u-boot.spr 918MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 919 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 920spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 921 $(call if_changed,mkimage) 922 923OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 924 --gap-fill=0xff 925u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE 926 $(call if_changed,pad_cat) 927 928MKIMAGEFLAGS_u-boot-spl.gph = -A $(ARCH) -T gpimage -C none \ 929 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n SPL 930spl/u-boot-spl.gph: spl/u-boot-spl.bin FORCE 931 $(call if_changed,mkimage) 932 933OBJCOPYFLAGS_u-boot-spi.gph = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 934 --gap-fill=0 935u-boot-spi.gph: spl/u-boot-spl.gph u-boot.img FORCE 936 $(call if_changed,pad_cat) 937 938MKIMAGEFLAGS_u-boot-nand.gph = -A $(ARCH) -T gpimage -C none \ 939 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) -n U-Boot 940u-boot-nand.gph: u-boot.bin FORCE 941 $(call if_changed,mkimage) 942 @dd if=/dev/zero bs=8 count=1 2>/dev/null >> $@ 943 944ifneq ($(CONFIG_SUNXI),) 945OBJCOPYFLAGS_u-boot-sunxi-with-spl.bin = -I binary -O binary \ 946 --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff 947u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img FORCE 948 $(call if_changed,pad_cat) 949endif 950 951ifneq ($(CONFIG_TEGRA),) 952OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 953u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot.bin FORCE 954 $(call if_changed,pad_cat) 955 956ifeq ($(CONFIG_OF_SEPARATE),y) 957u-boot-dtb-tegra.bin: u-boot-nodtb-tegra.bin dts/dt.dtb FORCE 958 $(call if_changed,cat) 959endif 960endif 961 962u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 963 $(call if_changed,cat) 964 965#Add a target to create boot binary having SPL binary in PBI format 966#concatenated with u-boot binary. It is need by PowerPC SoC having 967#internal SRAM <= 512KB. 968MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 969 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 970 971spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 972 $(call if_changed,mkimage) 973 974OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 975 --gap-fill=0xff 976 977u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl u-boot.bin FORCE 978 $(call if_changed,pad_cat) 979 980# PPC4xx needs the SPL at the end of the image, since the reset vector 981# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target 982# and need to introduce a new build target with the full blown U-Boot 983# at the start padded up to the start of the SPL image. And then concat 984# the SPL image to the end. 985 986OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ 987 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff 988u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE 989 $(call if_changed,pad_cat) 990 991# Create a new ELF from a raw binary file. This is useful for arm64 992# where static relocation needs to be performed on the raw binary, 993# but certain simulators only accept an ELF file (but don't do the 994# relocation). 995# FIXME refactor dts/Makefile to share target/arch detection 996u-boot.elf: u-boot.bin 997 @$(OBJCOPY) -B aarch64 -I binary -O elf64-littleaarch64 \ 998 $< u-boot-elf.o 999 @$(LD) u-boot-elf.o -o $@ \ 1000 --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \ 1001 -Ttext=$(CONFIG_SYS_TEXT_BASE) 1002 1003# Rule to link u-boot 1004# May be overridden by arch/$(ARCH)/config.mk 1005quiet_cmd_u-boot__ ?= LD $@ 1006 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1007 -T u-boot.lds $(u-boot-init) \ 1008 --start-group $(u-boot-main) --end-group \ 1009 $(PLATFORM_LIBS) -Map u-boot.map 1010 1011quiet_cmd_smap = GEN common/system_map.o 1012cmd_smap = \ 1013 smap=`$(call SYSTEM_MAP,u-boot) | \ 1014 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1015 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1016 -c $(srctree)/common/system_map.c -o common/system_map.o 1017 1018u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds 1019 $(call if_changed,u-boot__) 1020ifeq ($(CONFIG_KALLSYMS),y) 1021 $(call cmd,smap) 1022 $(call cmd,u-boot__) common/system_map.o 1023endif 1024 1025# The actual objects are generated when descending, 1026# make sure no implicit rule kicks in 1027$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1028 1029# Handle descending into subdirectories listed in $(vmlinux-dirs) 1030# Preset locale variables to speed up the build process. Limit locale 1031# tweaks to this spot to avoid wrong language settings when running 1032# make menuconfig etc. 1033# Error messages still appears in the original language 1034 1035PHONY += $(u-boot-dirs) 1036$(u-boot-dirs): prepare scripts 1037 $(Q)$(MAKE) $(build)=$@ 1038 1039tools: prepare 1040# The "tools" are needed early 1041$(filter-out tools, $(u-boot-dirs)): tools 1042# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1043# is "yes"), so compile examples after U-Boot is compiled. 1044examples: $(filter-out examples, $(u-boot-dirs)) 1045 1046define filechk_uboot.release 1047 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1048endef 1049 1050# Store (new) UBOOTRELEASE string in include/config/uboot.release 1051include/config/uboot.release: include/config/auto.conf FORCE 1052 $(call filechk,uboot.release) 1053 1054 1055# Things we need to do before we recursively start building the kernel 1056# or the modules are listed in "prepare". 1057# A multi level approach is used. prepareN is processed before prepareN-1. 1058# archprepare is used in arch Makefiles and when processed asm symlink, 1059# version.h and scripts_basic is processed / created. 1060 1061# Listed in dependency order 1062PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1063 1064# prepare3 is used to check if we are building in a separate output directory, 1065# and if so do: 1066# 1) Check that make has not been executed in the kernel src $(srctree) 1067prepare3: include/config/uboot.release 1068ifneq ($(KBUILD_SRC),) 1069 @$(kecho) ' Using $(srctree) as source for U-Boot' 1070 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 1071 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1072 echo >&2 " in the '$(srctree)' directory.";\ 1073 /bin/false; \ 1074 fi; 1075endif 1076 1077# prepare2 creates a makefile if using a separate output directory 1078prepare2: prepare3 outputmakefile 1079 1080prepare1: prepare2 $(version_h) $(timestamp_h) \ 1081 include/config/auto.conf 1082ifeq ($(__HAVE_ARCH_GENERIC_BOARD),) 1083ifeq ($(CONFIG_SYS_GENERIC_BOARD),y) 1084 @echo >&2 " Your architecture does not support generic board." 1085 @echo >&2 " Please undefine CONFIG_SYS_GENERIC_BOARD in your board config file." 1086 @/bin/false 1087endif 1088endif 1089ifeq ($(wildcard $(LDSCRIPT)),) 1090 @echo >&2 " Could not find linker script." 1091 @/bin/false 1092endif 1093 1094archprepare: prepare1 scripts_basic 1095 1096prepare0: archprepare FORCE 1097 $(Q)$(MAKE) $(build)=. 1098 1099# All the preparing.. 1100prepare: prepare0 1101 1102# Generate some files 1103# --------------------------------------------------------------------------- 1104 1105define filechk_version.h 1106 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1107 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1108 echo \#define CC_VERSION_STRING \"$$($(CC) --version | head -n 1)\"; \ 1109 echo \#define LD_VERSION_STRING \"$$($(LD) --version | head -n 1)\"; ) 1110endef 1111 1112define filechk_timestamp.h 1113 (LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1114 LC_ALL=C date +'#define U_BOOT_TIME "%T"') 1115endef 1116 1117$(version_h): include/config/uboot.release FORCE 1118 $(call filechk,version.h) 1119 1120$(timestamp_h): $(srctree)/Makefile FORCE 1121 $(call filechk,timestamp.h) 1122 1123# --------------------------------------------------------------------------- 1124 1125PHONY += depend dep 1126depend dep: 1127 @echo '*** Warning: make $@ is unnecessary now.' 1128 1129# --------------------------------------------------------------------------- 1130quiet_cmd_cpp_lds = LDS $@ 1131cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 1132 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 1133 1134u-boot.lds: $(LDSCRIPT) prepare FORCE 1135 $(call if_changed_dep,cpp_lds) 1136 1137spl/u-boot-spl.bin: spl/u-boot-spl 1138 @: 1139spl/u-boot-spl: tools prepare 1140 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all 1141 1142spl/sunxi-spl.bin: spl/u-boot-spl 1143 @: 1144 1145tpl/u-boot-tpl.bin: tools prepare 1146 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all 1147 1148TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) 1149 1150FIND := find 1151FINDFLAGS := -L 1152 1153tags ctags: 1154 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1155 -name '*.[chS]' -print` 1156 1157etags: 1158 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1159 -name '*.[chS]' -print` 1160cscope: 1161 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 1162 cscope.files 1163 cscope -b -q -k 1164 1165SYSTEM_MAP = \ 1166 $(NM) $1 | \ 1167 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 1168 LC_ALL=C sort 1169System.map: u-boot 1170 @$(call SYSTEM_MAP,$<) > $@ 1171 1172checkdtc: 1173 @if test $(call dtc-version) -lt 0104; then \ 1174 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \ 1175 false; \ 1176 fi 1177 1178######################################################################### 1179 1180# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 1181# R_AARCH64_RELATIVE (64-bit). 1182checkarmreloc: u-boot 1183 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 1184 grep R_A | sort -u`"; \ 1185 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 1186 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 1187 echo "$< contains unexpected relocations: $$RELOC"; \ 1188 false; \ 1189 fi 1190 1191env: scripts_basic 1192 $(Q)$(MAKE) $(build)=tools/$@ 1193 1194tools-only: scripts_basic $(version_h) $(timestamp_h) 1195 $(Q)$(MAKE) $(build)=tools 1196 1197tools-all: export HOST_TOOLS_ALL=y 1198tools-all: env tools ; 1199 1200cross_tools: export CROSS_BUILD_TOOLS=y 1201cross_tools: tools ; 1202 1203.PHONY : CHANGELOG 1204CHANGELOG: 1205 git log --no-merges U-Boot-1_1_5.. | \ 1206 unexpand -a | sed -e 's/\s\s*$$//' > $@ 1207 1208include/license.h: tools/bin2header COPYING 1209 cat COPYING | gzip -9 -c | ./tools/bin2header license_gzip > include/license.h 1210######################################################################### 1211 1212### 1213# Cleaning is done on three levels. 1214# make clean Delete most generated files 1215# Leave enough to build external modules 1216# make mrproper Delete the current configuration, and all generated files 1217# make distclean Remove editor backup files, patch leftover files and the like 1218 1219# Directories & files removed with 'make clean' 1220CLEAN_DIRS += $(MODVERDIR) 1221CLEAN_FILES += u-boot.lds include/bmp_logo.h include/bmp_logo_data.h 1222 1223# Directories & files removed with 'make clobber' 1224CLOBBER_DIRS += $(foreach d, spl tpl, $(patsubst %,$d/%, \ 1225 $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) 1226CLOBBER_FILES += u-boot* MLO* SPL System.map 1227 1228# Directories & files removed with 'make mrproper' 1229MRPROPER_DIRS += include/config include/generated spl tpl \ 1230 .tmp_objdiff 1231MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ 1232 ctags etags TAGS cscope* GPATH GTAGS GRTAGS GSYMS 1233 1234# clean - Delete most, but leave enough to build external modules 1235# 1236clean: rm-dirs := $(CLEAN_DIRS) 1237clean: rm-files := $(CLEAN_FILES) 1238 1239clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 1240 1241clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook) 1242 1243PHONY += $(clean-dirs) clean archclean 1244$(clean-dirs): 1245 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1246 1247# TODO: Do not use *.cfgtmp 1248clean: $(clean-dirs) 1249 $(call cmd,rmdirs) 1250 $(call cmd,rmfiles) 1251 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1252 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 1253 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \ 1254 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 1255 -o -name '*.symtypes' -o -name 'modules.order' \ 1256 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 1257 -o -name '*.gcno' \) -type f -print | xargs rm -f 1258 1259# clobber 1260# 1261clobber: rm-dirs := $(CLOBBER_DIRS) 1262clobber: rm-files := $(CLOBBER_FILES) 1263 1264PHONY += clobber 1265 1266clobber: clean 1267 $(call cmd,rmdirs) 1268 $(call cmd,rmfiles) 1269 1270# mrproper - Delete all generated files, including .config 1271# 1272mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 1273mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 1274mrproper-dirs := $(addprefix _mrproper_,scripts) 1275 1276PHONY += $(mrproper-dirs) mrproper archmrproper 1277$(mrproper-dirs): 1278 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 1279 1280mrproper: clobber $(mrproper-dirs) 1281 $(call cmd,rmdirs) 1282 $(call cmd,rmfiles) 1283 @rm -f arch/*/include/asm/arch 1284 1285# distclean 1286# 1287PHONY += distclean 1288 1289distclean: mrproper 1290 @find $(srctree) $(RCS_FIND_IGNORE) \ 1291 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 1292 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 1293 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 1294 -o -name '*.pyc' \) \ 1295 -type f -print | xargs rm -f 1296 @rm -f boards.cfg 1297 1298backup: 1299 F=`basename $(srctree)` ; cd .. ; \ 1300 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 1301 1302help: 1303 @echo 'Cleaning targets:' 1304 @echo ' clean - Remove most generated files but keep the config and' 1305 @echo ' necessities for testing u-boot' 1306 @echo ' clobber - Remove most generated files but keep the config' 1307 @echo ' mrproper - Remove all generated files + config + various backup files' 1308 @echo ' distclean - mrproper + remove editor backup and patch files' 1309 @echo '' 1310 @echo 'Configuration targets:' 1311 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 1312 @echo '' 1313 @echo 'Other generic targets:' 1314 @echo ' all - Build all necessary images depending on configuration' 1315 @echo ' u-boot - Build the bare u-boot' 1316 @echo ' dir/ - Build all files in dir and below' 1317 @echo ' dir/file.[oisS] - Build specified target only' 1318 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 1319 @echo ' (requires a recent binutils and recent build (System.map))' 1320 @echo ' tags/ctags - Generate ctags file for editors' 1321 @echo ' etags - Generate etags file for editors' 1322 @echo ' cscope - Generate cscope index' 1323 @echo ' ubootrelease - Output the release version string' 1324 @echo ' ubootversion - Output the version stored in Makefile' 1325 @echo '' 1326 @echo 'Static analysers' 1327 @echo ' checkstack - Generate a list of stack hogs' 1328 @echo '' 1329 @echo 'Documentation targets:' 1330 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp 1331 @echo '' 1332 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 1333 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 1334 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 1335 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 1336 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 1337 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 1338 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 1339 @echo ' 1: warnings which may be relevant and do not occur too often' 1340 @echo ' 2: warnings which occur quite often but may still be relevant' 1341 @echo ' 3: more obscure warnings, can most likely be ignored' 1342 @echo ' Multiple levels can be combined with W=12 or W=123' 1343 @echo '' 1344 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 1345 @echo 'For further info see the ./README file' 1346 1347 1348# Documentation targets 1349# --------------------------------------------------------------------------- 1350%docs: scripts_basic FORCE 1351 $(Q)$(MAKE) $(build)=scripts build_docproc 1352 $(Q)$(MAKE) $(build)=doc/DocBook $@ 1353 1354# Dummies... 1355PHONY += prepare scripts 1356prepare: ; 1357scripts: ; 1358 1359endif #ifeq ($(config-targets),1) 1360endif #ifeq ($(mixed-targets),1) 1361 1362PHONY += checkstack ubootrelease ubootversion 1363 1364checkstack: 1365 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 1366 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 1367 1368ubootrelease: 1369 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1370 1371ubootversion: 1372 @echo $(UBOOTVERSION) 1373 1374# Single targets 1375# --------------------------------------------------------------------------- 1376# Single targets are compatible with: 1377# - build with mixed source and output 1378# - build with separate output dir 'make O=...' 1379# - external modules 1380# 1381# target-dir => where to store outputfile 1382# build-dir => directory in kernel source tree to use 1383 1384ifeq ($(KBUILD_EXTMOD),) 1385 build-dir = $(patsubst %/,%,$(dir $@)) 1386 target-dir = $(dir $@) 1387else 1388 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 1389 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 1390 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 1391endif 1392 1393%.s: %.c prepare scripts FORCE 1394 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1395%.i: %.c prepare scripts FORCE 1396 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1397%.o: %.c prepare scripts FORCE 1398 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1399%.lst: %.c prepare scripts FORCE 1400 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1401%.s: %.S prepare scripts FORCE 1402 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1403%.o: %.S prepare scripts FORCE 1404 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1405%.symtypes: %.c prepare scripts FORCE 1406 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1407 1408# Modules 1409/: prepare scripts FORCE 1410 $(cmd_crmodverdir) 1411 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1412 $(build)=$(build-dir) 1413%/: prepare scripts FORCE 1414 $(cmd_crmodverdir) 1415 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1416 $(build)=$(build-dir) 1417%.ko: prepare scripts FORCE 1418 $(cmd_crmodverdir) 1419 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1420 $(build)=$(build-dir) $(@:.ko=.o) 1421 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1422 1423# FIXME Should go into a make.lib or something 1424# =========================================================================== 1425 1426quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 1427 cmd_rmdirs = rm -rf $(rm-dirs) 1428 1429quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 1430 cmd_rmfiles = rm -f $(rm-files) 1431 1432# read all saved command lines 1433 1434targets := $(wildcard $(sort $(targets))) 1435cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 1436 1437ifneq ($(cmd_files),) 1438 $(cmd_files): ; # Do not try to update included dependency files 1439 include $(cmd_files) 1440endif 1441 1442# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir 1443# Usage: 1444# $(Q)$(MAKE) $(clean)=dir 1445clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj 1446 1447endif # skip-makefile 1448 1449PHONY += FORCE 1450FORCE: 1451 1452# Declare the contents of the .PHONY variable as phony. We keep that 1453# information in a variable so we can use it in if_changed and friends. 1454.PHONY: $(PHONY) 1455