1# 2# SPDX-License-Identifier: GPL-2.0+ 3# 4 5VERSION = 2016 6PATCHLEVEL = 11 7SUBLEVEL = 8EXTRAVERSION = 9NAME = 10 11# *DOCUMENTATION* 12# To see a list of typical targets execute "make help" 13# More info can be located in ./README 14# Comments in this file are targeted only to the developer, do not 15# expect to learn how to build the kernel reading this file. 16 17# o Do not use make's built-in rules and variables 18# (this increases performance and avoids hard-to-debug behaviour); 19# o Look for make include files relative to root of kernel src 20MAKEFLAGS += -rR --include-dir=$(CURDIR) 21 22# Avoid funny character set dependencies 23unexport LC_ALL 24LC_COLLATE=C 25LC_NUMERIC=C 26export LC_COLLATE LC_NUMERIC 27 28# Avoid interference with shell env settings 29unexport GREP_OPTIONS 30 31# We are using a recursive build, so we need to do a little thinking 32# to get the ordering right. 33# 34# Most importantly: sub-Makefiles should only ever modify files in 35# their own directory. If in some directory we have a dependency on 36# a file in another dir (which doesn't happen often, but it's often 37# unavoidable when linking the built-in.o targets which finally 38# turn into vmlinux), we will call a sub make in that other dir, and 39# after that we are sure that everything which is in that other dir 40# is now up to date. 41# 42# The only cases where we need to modify files which have global 43# effects are thus separated out and done before the recursive 44# descending is started. They are now explicitly listed as the 45# prepare rule. 46 47# Beautify output 48# --------------------------------------------------------------------------- 49# 50# Normally, we echo the whole command before executing it. By making 51# that echo $($(quiet)$(cmd)), we now have the possibility to set 52# $(quiet) to choose other forms of output instead, e.g. 53# 54# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ 55# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< 56# 57# If $(quiet) is empty, the whole command will be printed. 58# If it is set to "quiet_", only the short version will be printed. 59# If it is set to "silent_", nothing will be printed at all, since 60# the variable $(silent_cmd_cc_o_c) doesn't exist. 61# 62# A simple variant is to prefix commands with $(Q) - that's useful 63# for commands that shall be hidden in non-verbose mode. 64# 65# $(Q)ln $@ :< 66# 67# If KBUILD_VERBOSE equals 0 then the above command will be hidden. 68# If KBUILD_VERBOSE equals 1 then the above command is displayed. 69# 70# To put more focus on warnings, be less verbose as default 71# Use 'make V=1' to see the full commands 72 73ifeq ("$(origin V)", "command line") 74 KBUILD_VERBOSE = $(V) 75endif 76ifndef KBUILD_VERBOSE 77 KBUILD_VERBOSE = 0 78endif 79 80ifeq ($(KBUILD_VERBOSE),1) 81 quiet = 82 Q = 83else 84 quiet=quiet_ 85 Q = @ 86endif 87 88# If the user is running make -s (silent mode), suppress echoing of 89# commands 90 91ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4 92ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),) 93 quiet=silent_ 94endif 95else # make-3.8x 96ifneq ($(filter s% -s%,$(MAKEFLAGS)),) 97 quiet=silent_ 98endif 99endif 100 101export quiet Q KBUILD_VERBOSE 102 103# kbuild supports saving output files in a separate directory. 104# To locate output files in a separate directory two syntaxes are supported. 105# In both cases the working directory must be the root of the kernel src. 106# 1) O= 107# Use "make O=dir/to/store/output/files/" 108# 109# 2) Set KBUILD_OUTPUT 110# Set the environment variable KBUILD_OUTPUT to point to the directory 111# where the output files shall be placed. 112# export KBUILD_OUTPUT=dir/to/store/output/files/ 113# make 114# 115# The O= assignment takes precedence over the KBUILD_OUTPUT environment 116# variable. 117 118# KBUILD_SRC is set on invocation of make in OBJ directory 119# KBUILD_SRC is not intended to be used by the regular user (for now) 120ifeq ($(KBUILD_SRC),) 121 122# OK, Make called in directory where kernel src resides 123# Do we want to locate output files in a separate directory? 124ifeq ("$(origin O)", "command line") 125 KBUILD_OUTPUT := $(O) 126endif 127 128# That's our default target when none is given on the command line 129PHONY := _all 130_all: 131 132# Cancel implicit rules on top Makefile 133$(CURDIR)/Makefile Makefile: ; 134 135ifneq ($(KBUILD_OUTPUT),) 136# Invoke a second make in the output directory, passing relevant variables 137# check that the output directory actually exists 138saved-output := $(KBUILD_OUTPUT) 139KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \ 140 && /bin/pwd) 141$(if $(KBUILD_OUTPUT),, \ 142 $(error failed to create output directory "$(saved-output)")) 143 144PHONY += $(MAKECMDGOALS) sub-make 145 146$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make 147 @: 148 149sub-make: FORCE 150 $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \ 151 -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS)) 152 153# Leave processing to above invocation of make 154skip-makefile := 1 155endif # ifneq ($(KBUILD_OUTPUT),) 156endif # ifeq ($(KBUILD_SRC),) 157 158# We process the rest of the Makefile if this is the final invocation of make 159ifeq ($(skip-makefile),) 160 161# Do not print "Entering directory ...", 162# but we want to display it when entering to the output directory 163# so that IDEs/editors are able to understand relative filenames. 164MAKEFLAGS += --no-print-directory 165 166# Call a source code checker (by default, "sparse") as part of the 167# C compilation. 168# 169# Use 'make C=1' to enable checking of only re-compiled files. 170# Use 'make C=2' to enable checking of *all* source files, regardless 171# of whether they are re-compiled or not. 172# 173# See the file "Documentation/sparse.txt" for more details, including 174# where to get the "sparse" utility. 175 176ifeq ("$(origin C)", "command line") 177 KBUILD_CHECKSRC = $(C) 178endif 179ifndef KBUILD_CHECKSRC 180 KBUILD_CHECKSRC = 0 181endif 182 183# Use make M=dir to specify directory of external module to build 184# Old syntax make ... SUBDIRS=$PWD is still supported 185# Setting the environment variable KBUILD_EXTMOD take precedence 186ifdef SUBDIRS 187 KBUILD_EXTMOD ?= $(SUBDIRS) 188endif 189 190ifeq ("$(origin M)", "command line") 191 KBUILD_EXTMOD := $(M) 192endif 193 194# If building an external module we do not care about the all: rule 195# but instead _all depend on modules 196PHONY += all 197ifeq ($(KBUILD_EXTMOD),) 198_all: all 199else 200_all: modules 201endif 202 203ifeq ($(KBUILD_SRC),) 204 # building in the source tree 205 srctree := . 206else 207 ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR))) 208 # building in a subdirectory of the source tree 209 srctree := .. 210 else 211 srctree := $(KBUILD_SRC) 212 endif 213endif 214objtree := . 215src := $(srctree) 216obj := $(objtree) 217 218VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) 219 220export srctree objtree VPATH 221 222# Make sure CDPATH settings don't interfere 223unexport CDPATH 224 225######################################################################### 226 227HOSTARCH := $(shell uname -m | \ 228 sed -e s/i.86/x86/ \ 229 -e s/sun4u/sparc64/ \ 230 -e s/arm.*/arm/ \ 231 -e s/sa110/arm/ \ 232 -e s/ppc64/powerpc/ \ 233 -e s/ppc/powerpc/ \ 234 -e s/macppc/powerpc/\ 235 -e s/sh.*/sh/) 236 237HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \ 238 sed -e 's/\(cygwin\).*/cygwin/') 239 240export HOSTARCH HOSTOS 241 242######################################################################### 243 244# set default to nothing for native builds 245ifeq ($(HOSTARCH),$(ARCH)) 246CROSS_COMPILE ?= 247endif 248 249KCONFIG_CONFIG ?= .config 250export KCONFIG_CONFIG 251 252# SHELL used by kbuild 253CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ 254 else if [ -x /bin/bash ]; then echo /bin/bash; \ 255 else echo sh; fi ; fi) 256 257HOSTCC = cc 258HOSTCXX = c++ 259HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \ 260 $(if $(CONFIG_TOOLS_DEBUG),-g) 261HOSTCXXFLAGS = -O2 262 263ifeq ($(HOSTOS),cygwin) 264HOSTCFLAGS += -ansi 265endif 266 267# Mac OS X / Darwin's C preprocessor is Apple specific. It 268# generates numerous errors and warnings. We want to bypass it 269# and use GNU C's cpp. To do this we pass the -traditional-cpp 270# option to the compiler. Note that the -traditional-cpp flag 271# DOES NOT have the same semantics as GNU C's flag, all it does 272# is invoke the GNU preprocessor in stock ANSI/ISO C fashion. 273# 274# Apple's linker is similar, thanks to the new 2 stage linking 275# multiple symbol definitions are treated as errors, hence the 276# -multiply_defined suppress option to turn off this error. 277# 278ifeq ($(HOSTOS),darwin) 279# get major and minor product version (e.g. '10' and '6' for Snow Leopard) 280DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.') 281DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.') 282 283os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \ 284 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;) 285 286# Snow Leopards build environment has no longer restrictions as described above 287HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc") 288HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp") 289HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress") 290 291# since Lion (10.7) ASLR is on by default, but we use linker generated lists 292# in some host tools which is a problem then ... so disable ASLR for these 293# tools 294HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie") 295endif 296 297# Decide whether to build built-in, modular, or both. 298# Normally, just do built-in. 299 300KBUILD_MODULES := 301KBUILD_BUILTIN := 1 302 303# If we have only "make modules", don't compile built-in objects. 304# When we're building modules with modversions, we need to consider 305# the built-in objects during the descend as well, in order to 306# make sure the checksums are up to date before we record them. 307 308ifeq ($(MAKECMDGOALS),modules) 309 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) 310endif 311 312# If we have "make <whatever> modules", compile modules 313# in addition to whatever we do anyway. 314# Just "make" or "make all" shall build modules as well 315 316# U-Boot does not need modules 317#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) 318# KBUILD_MODULES := 1 319#endif 320 321#ifeq ($(MAKECMDGOALS),) 322# KBUILD_MODULES := 1 323#endif 324 325export KBUILD_MODULES KBUILD_BUILTIN 326export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD 327 328# We need some generic definitions (do not try to remake the file). 329scripts/Kbuild.include: ; 330include scripts/Kbuild.include 331 332# Make variables (CC, etc...) 333 334AS = $(CROSS_COMPILE)as 335# Always use GNU ld 336ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),) 337LD = $(CROSS_COMPILE)ld.bfd 338else 339LD = $(CROSS_COMPILE)ld 340endif 341CC = $(CROSS_COMPILE)gcc 342CPP = $(CC) -E 343AR = $(CROSS_COMPILE)ar 344NM = $(CROSS_COMPILE)nm 345LDR = $(CROSS_COMPILE)ldr 346STRIP = $(CROSS_COMPILE)strip 347OBJCOPY = $(CROSS_COMPILE)objcopy 348OBJDUMP = $(CROSS_COMPILE)objdump 349AWK = awk 350PERL = perl 351PYTHON = python 352DTC = dtc 353CHECK = sparse 354 355CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ 356 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF) 357 358KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__ 359 360KBUILD_CFLAGS := -Wall -Wstrict-prototypes \ 361 -Wno-format-security \ 362 -fno-builtin -ffreestanding 363KBUILD_AFLAGS := -D__ASSEMBLY__ 364 365# Read UBOOTRELEASE from include/config/uboot.release (if it exists) 366UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null) 367UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) 368 369export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION 370export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR 371export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC 372export CPP AR NM LDR STRIP OBJCOPY OBJDUMP 373export MAKE AWK PERL PYTHON 374export HOSTCXX HOSTCXXFLAGS DTC CHECK CHECKFLAGS 375 376export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS 377export KBUILD_CFLAGS KBUILD_AFLAGS 378 379# When compiling out-of-tree modules, put MODVERDIR in the module 380# tree rather than in the kernel tree. The kernel tree might 381# even be read-only. 382export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions 383 384# Files to ignore in find ... statements 385 386export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ 387 -name CVS -o -name .pc -o -name .hg -o -name .git \) \ 388 -prune -o 389export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ 390 --exclude CVS --exclude .pc --exclude .hg --exclude .git 391 392# =========================================================================== 393# Rules shared between *config targets and build targets 394 395# Basic helpers built in scripts/ 396PHONY += scripts_basic 397scripts_basic: 398 $(Q)$(MAKE) $(build)=scripts/basic 399 $(Q)rm -f .tmp_quiet_recordmcount 400 401# To avoid any implicit rule to kick in, define an empty command. 402scripts/basic/%: scripts_basic ; 403 404PHONY += outputmakefile 405# outputmakefile generates a Makefile in the output directory, if using a 406# separate output directory. This allows convenient use of make in the 407# output directory. 408outputmakefile: 409ifneq ($(KBUILD_SRC),) 410 $(Q)ln -fsn $(srctree) source 411 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ 412 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) 413endif 414 415# To make sure we do not include .config for any of the *config targets 416# catch them early, and hand them over to scripts/kconfig/Makefile 417# It is allowed to specify more targets when calling make, including 418# mixing *config targets and build targets. 419# For example 'make oldconfig all'. 420# Detect when mixed targets is specified, and make a second invocation 421# of make so .config is not included in this case either (for *config). 422 423version_h := include/generated/version_autogenerated.h 424timestamp_h := include/generated/timestamp_autogenerated.h 425 426no-dot-config-targets := clean clobber mrproper distclean \ 427 help %docs check% coccicheck \ 428 ubootversion backup tests 429 430config-targets := 0 431mixed-targets := 0 432dot-config := 1 433 434ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) 435 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) 436 dot-config := 0 437 endif 438endif 439 440ifeq ($(KBUILD_EXTMOD),) 441 ifneq ($(filter config %config,$(MAKECMDGOALS)),) 442 config-targets := 1 443 ifneq ($(words $(MAKECMDGOALS)),1) 444 mixed-targets := 1 445 endif 446 endif 447endif 448 449ifeq ($(mixed-targets),1) 450# =========================================================================== 451# We're called with mixed targets (*config and build targets). 452# Handle them one by one. 453 454PHONY += $(MAKECMDGOALS) __build_one_by_one 455 456$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one 457 @: 458 459__build_one_by_one: 460 $(Q)set -e; \ 461 for i in $(MAKECMDGOALS); do \ 462 $(MAKE) -f $(srctree)/Makefile $$i; \ 463 done 464 465else 466ifeq ($(config-targets),1) 467# =========================================================================== 468# *config targets only - make sure prerequisites are updated, and descend 469# in scripts/kconfig to make the *config target 470 471KBUILD_DEFCONFIG := sandbox_defconfig 472export KBUILD_DEFCONFIG KBUILD_KCONFIG 473 474config: scripts_basic outputmakefile FORCE 475 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 476 477%config: scripts_basic outputmakefile FORCE 478 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 479 480else 481# =========================================================================== 482# Build targets only - this includes vmlinux, arch specific targets, clean 483# targets and others. In general all targets except *config targets. 484 485ifeq ($(dot-config),1) 486# Read in config 487-include include/config/auto.conf 488 489# Read in dependencies to all Kconfig* files, make sure to run 490# oldconfig if changes are detected. 491-include include/config/auto.conf.cmd 492 493# To avoid any implicit rule to kick in, define an empty command 494$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; 495 496# If .config is newer than include/config/auto.conf, someone tinkered 497# with it and forgot to run make oldconfig. 498# if auto.conf.cmd is missing then we are probably in a cleaned tree so 499# we execute the config step to be sure to catch updated Kconfig files 500include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd 501 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig 502 @# If the following part fails, include/config/auto.conf should be 503 @# deleted so "make silentoldconfig" will be re-run on the next build. 504 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \ 505 { rm -f include/config/auto.conf; false; } 506 @# include/config.h has been updated after "make silentoldconfig". 507 @# We need to touch include/config/auto.conf so it gets newer 508 @# than include/config.h. 509 @# Otherwise, 'make silentoldconfig' would be invoked twice. 510 $(Q)touch include/config/auto.conf 511 512-include include/autoconf.mk 513-include include/autoconf.mk.dep 514 515# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf 516# is up-to-date. When we switch to a different board configuration, old CONFIG 517# macros are still remaining in include/config/auto.conf. Without the following 518# gimmick, wrong config.mk would be included leading nasty warnings/errors. 519ifneq ($(wildcard $(KCONFIG_CONFIG)),) 520ifneq ($(wildcard include/config/auto.conf),) 521autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \ 522 include/config/auto.conf) 523ifeq ($(autoconf_is_old),) 524include config.mk 525include arch/$(ARCH)/Makefile 526endif 527endif 528endif 529 530# These are set by the arch-specific config.mk. Make sure they are exported 531# so they can be used when building an EFI application. 532export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib 533export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib 534export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib 535export CFLAGS_EFI # Compiler flags to add when building EFI app 536export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app 537export EFI_TARGET # binutils target if EFI is natively supported 538 539# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use 540# that (or fail if absent). Otherwise, search for a linker script in a 541# standard location. 542 543ifndef LDSCRIPT 544 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug 545 ifdef CONFIG_SYS_LDSCRIPT 546 # need to strip off double quotes 547 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%) 548 endif 549endif 550 551# If there is no specified link script, we look in a number of places for it 552ifndef LDSCRIPT 553 ifeq ($(wildcard $(LDSCRIPT)),) 554 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds 555 endif 556 ifeq ($(wildcard $(LDSCRIPT)),) 557 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds 558 endif 559 ifeq ($(wildcard $(LDSCRIPT)),) 560 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds 561 endif 562endif 563 564else 565# Dummy target needed, because used as prerequisite 566include/config/auto.conf: ; 567endif # $(dot-config) 568 569# 570# Xtensa linker script cannot be preprocessed with -ansi because of 571# preprocessor operations on strings that don't make C identifiers. 572# 573ifeq ($(CONFIG_XTENSA),) 574LDPPFLAGS += -ansi 575endif 576 577ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 578KBUILD_CFLAGS += -Os 579else 580KBUILD_CFLAGS += -O2 581endif 582 583KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 584KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks) 585 586KBUILD_CFLAGS += -g 587# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 588# option to the assembler. 589KBUILD_AFLAGS += -g 590 591# Report stack usage if supported 592ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y) 593 KBUILD_CFLAGS += -fstack-usage 594endif 595 596KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) 597 598# turn jbsr into jsr for m68k 599ifeq ($(ARCH),m68k) 600ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4) 601KBUILD_AFLAGS += -Wa,-gstabs,-S 602endif 603endif 604 605# Prohibit date/time macros, which would make the build non-deterministic 606KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 607 608include scripts/Makefile.extrawarn 609 610# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 611KBUILD_CPPFLAGS += $(KCPPFLAGS) 612KBUILD_AFLAGS += $(KAFLAGS) 613KBUILD_CFLAGS += $(KCFLAGS) 614 615# Use UBOOTINCLUDE when you must reference the include/ directory. 616# Needed to be compatible with the O= option 617UBOOTINCLUDE := \ 618 -Iinclude \ 619 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 620 $(if $(CONFIG_SYS_THUMB_BUILD), $(if $(CONFIG_HAS_THUMB2),, \ 621 -I$(srctree)/arch/$(ARCH)/thumb1/include),) \ 622 -I$(srctree)/arch/$(ARCH)/include \ 623 -include $(srctree)/include/linux/kconfig.h 624 625NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 626CHECKFLAGS += $(NOSTDINC_FLAGS) 627 628# FIX ME 629cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 630 $(NOSTDINC_FLAGS) 631c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 632 633######################################################################### 634# U-Boot objects....order is important (i.e. start must be first) 635 636HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 637 638libs-y += lib/ 639libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 640libs-$(CONFIG_OF_EMBED) += dts/ 641libs-y += fs/ 642libs-y += net/ 643libs-y += disk/ 644libs-y += drivers/ 645libs-y += drivers/dma/ 646libs-y += drivers/gpio/ 647libs-y += drivers/i2c/ 648libs-y += drivers/mmc/ 649libs-y += drivers/mtd/ 650libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/ 651libs-y += drivers/mtd/onenand/ 652libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/ 653libs-y += drivers/mtd/spi/ 654libs-y += drivers/net/ 655libs-y += drivers/net/phy/ 656libs-y += drivers/pci/ 657libs-y += drivers/power/ \ 658 drivers/power/domain/ \ 659 drivers/power/fuel_gauge/ \ 660 drivers/power/mfd/ \ 661 drivers/power/pmic/ \ 662 drivers/power/battery/ \ 663 drivers/power/regulator/ 664libs-y += drivers/spi/ 665libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/ 666libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ 667libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/ 668libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/ 669libs-y += drivers/serial/ 670libs-y += drivers/usb/dwc3/ 671libs-y += drivers/usb/common/ 672libs-y += drivers/usb/emul/ 673libs-y += drivers/usb/eth/ 674libs-y += drivers/usb/gadget/ 675libs-y += drivers/usb/gadget/udc/ 676libs-y += drivers/usb/host/ 677libs-y += drivers/usb/musb/ 678libs-y += drivers/usb/musb-new/ 679libs-y += drivers/usb/phy/ 680libs-y += drivers/usb/ulpi/ 681libs-y += cmd/ 682libs-y += common/ 683libs-$(CONFIG_API) += api/ 684libs-$(CONFIG_HAS_POST) += post/ 685libs-y += test/ 686libs-y += test/dm/ 687libs-$(CONFIG_UT_ENV) += test/env/ 688libs-$(CONFIG_UT_OVERLAY) += test/overlay/ 689 690libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 691 692libs-y := $(sort $(libs-y)) 693 694u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 695 696u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 697 698libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 699 700u-boot-init := $(head-y) 701u-boot-main := $(libs-y) 702 703 704# Add GCC lib 705ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 706PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 707else 708PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 709endif 710PLATFORM_LIBS += $(PLATFORM_LIBGCC) 711export PLATFORM_LIBS 712export PLATFORM_LIBGCC 713 714# Special flags for CPP when processing the linker script. 715# Pass the version down so we can handle backwards compatibility 716# on the fly. 717LDPPFLAGS += \ 718 -include $(srctree)/include/u-boot/u-boot.lds.h \ 719 -DCPUDIR=$(CPUDIR) \ 720 $(shell $(LD) --version | \ 721 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 722 723######################################################################### 724######################################################################### 725 726ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 727BOARD_SIZE_CHECK = \ 728 @actual=`wc -c $@ | awk '{print $$1}'`; \ 729 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \ 730 if test $$actual -gt $$limit; then \ 731 echo "$@ exceeds file size limit:" >&2 ; \ 732 echo " limit: $$limit bytes" >&2 ; \ 733 echo " actual: $$actual bytes" >&2 ; \ 734 echo " excess: $$((actual - limit)) bytes" >&2; \ 735 exit 1; \ 736 fi 737else 738BOARD_SIZE_CHECK = 739endif 740 741# Statically apply RELA-style relocations (currently arm64 only) 742ifneq ($(CONFIG_STATIC_RELA),) 743# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base 744DO_STATIC_RELA = \ 745 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \ 746 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \ 747 tools/relocate-rela $(2) $(3) $$start $$end 748else 749DO_STATIC_RELA = 750endif 751 752# Always append ALL so that arch config.mk's can add custom ones 753ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check 754 755ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin 756ifeq ($(CONFIG_SPL_FSL_PBL),y) 757ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 758else 759ifneq ($(CONFIG_SECURE_BOOT), y) 760# For Secure Boot The Image needs to be signed and Header must also 761# be included. So The image has to be built explicitly 762ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 763endif 764endif 765ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin 766ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 767ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 768ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb 769ifeq ($(CONFIG_SPL_FRAMEWORK),y) 770ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 771endif 772ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb 773ifneq ($(CONFIG_SPL_TARGET),) 774ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 775endif 776ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf 777ALL-$(CONFIG_EFI_APP) += u-boot-app.efi 778ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi 779 780ifneq ($(BUILD_ROM),) 781ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom 782endif 783 784# enable combined SPL/u-boot/dtb rules for tegra 785ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy) 786ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin 787ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin 788endif 789 790# Add optional build target if defined in board/cpu/soc headers 791ifneq ($(CONFIG_BUILD_TARGET),) 792ALL-y += $(CONFIG_BUILD_TARGET:"%"=%) 793endif 794 795LDFLAGS_u-boot += $(LDFLAGS_FINAL) 796ifneq ($(CONFIG_SYS_TEXT_BASE),) 797LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 798endif 799 800# Normally we fill empty space with 0xff 801quiet_cmd_objcopy = OBJCOPY $@ 802cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \ 803 $(OBJCOPYFLAGS_$(@F)) $< $@ 804 805# Provide a version which does not do this, for use by EFI 806quiet_cmd_zobjcopy = OBJCOPY $@ 807cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 808 809quiet_cmd_efipayload = OBJCOPY $@ 810cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@ 811 812quiet_cmd_mkimage = MKIMAGE $@ 813cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 814 $(if $(KBUILD_VERBOSE:1=), >/dev/null) 815 816quiet_cmd_cat = CAT $@ 817cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 818 819append = cat $(filter-out $< $(PHONY), $^) >> $@ 820 821quiet_cmd_pad_cat = CAT $@ 822cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@ 823 824all: $(ALL-y) 825ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y) 826 @echo "===================== WARNING ======================" 827 @echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove" 828 @echo "(possibly in a subsequent patch in your series)" 829 @echo "before sending patches to the mailing list." 830 @echo "====================================================" 831endif 832 @# Check that this build does not use CONFIG options that we do not 833 @# know about unless they are in Kconfig. All the existing CONFIG 834 @# options are whitelisted, so new ones should not be added. 835 $(srctree)/scripts/check-config.sh u-boot.cfg \ 836 $(srctree)/scripts/config_whitelist.txt ${srctree} 1>&2 837 838PHONY += dtbs 839dtbs: dts/dt.dtb 840 @: 841dts/dt.dtb: checkdtc u-boot 842 $(Q)$(MAKE) $(build)=dts dtbs 843 844quiet_cmd_copy = COPY $@ 845 cmd_copy = cp $< $@ 846 847ifeq ($(CONFIG_OF_SEPARATE),y) 848u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE 849 $(call if_changed,cat) 850 851u-boot.bin: u-boot-dtb.bin FORCE 852 $(call if_changed,copy) 853else 854u-boot.bin: u-boot-nodtb.bin FORCE 855 $(call if_changed,copy) 856endif 857 858%.imx: %.bin 859 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 860 861%.vyb: %.imx 862 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@ 863 864quiet_cmd_copy = COPY $@ 865 cmd_copy = cp $< $@ 866 867u-boot.dtb: dts/dt.dtb 868 $(call cmd,copy) 869 870OBJCOPYFLAGS_u-boot.hex := -O ihex 871 872OBJCOPYFLAGS_u-boot.srec := -O srec 873 874u-boot.hex u-boot.srec: u-boot FORCE 875 $(call if_changed,objcopy) 876 877OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \ 878 $(if $(CONFIG_X86_RESET_VECTOR),-R .start16 -R .resetvec) 879 880binary_size_check: u-boot-nodtb.bin FORCE 881 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \ 882 map_size=$(shell cat u-boot.map | \ 883 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \ 884 | sed 's/0X//g' \ 885 | bc); \ 886 if [ "" != "$$map_size" ]; then \ 887 if test $$map_size -ne $$file_size; then \ 888 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ 889 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \ 890 exit 1; \ 891 fi \ 892 fi 893 894u-boot-nodtb.bin: u-boot FORCE 895 $(call if_changed,objcopy) 896 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE)) 897 $(BOARD_SIZE_CHECK) 898 899u-boot.ldr: u-boot 900 $(CREATE_LDR_ENV) 901 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS) 902 $(BOARD_SIZE_CHECK) 903 904OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 905 906OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 907 908u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 909 $(call if_changed,objcopy) 910 911# 912# U-Boot entry point, needed for booting of full-blown U-Boot 913# from the SPL U-Boot version. 914# 915ifndef CONFIG_SYS_UBOOT_START 916CONFIG_SYS_UBOOT_START := 0 917endif 918 919# Create a file containing the configuration options the image was built with 920quiet_cmd_cpp_cfg = CFG $@ 921cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 922 -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $< 923 924ifdef CONFIG_SPL_LOAD_FIT 925MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 926 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 927 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \ 928 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) 929else 930MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 931 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 932 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 933endif 934 935MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 936 937MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 938 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 939 940MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 941 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 942 943MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 944 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 945 946u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl: \ 947 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE 948 $(call if_changed,mkimage) 949 950u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE 951 $(call if_changed,mkimage) 952 953u-boot.sha1: u-boot.bin 954 tools/ubsha1 u-boot.bin 955 956u-boot.dis: u-boot 957 $(OBJDUMP) -d $< > $@ 958 959ifdef CONFIG_TPL 960SPL_PAYLOAD := tpl/u-boot-with-tpl.bin 961else 962SPL_PAYLOAD := u-boot.bin 963endif 964 965OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 966 --pad-to=$(CONFIG_SPL_PAD_TO) 967u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE 968 $(call if_changed,pad_cat) 969 970MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE) 971 972lpc32xx-spl.img: spl/u-boot-spl.bin FORCE 973 $(call if_changed,mkimage) 974 975OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 976 977lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE 978 $(call if_changed,objcopy) 979 980OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 981 982lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE 983 $(call if_changed,objcopy) 984 985lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE 986 $(call if_changed,cat) 987 988CLEAN_FILES += lpc32xx-* 989 990OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 991 --pad-to=$(CONFIG_TPL_PAD_TO) 992tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 993 $(call if_changed,pad_cat) 994 995SPL: spl/u-boot-spl.bin FORCE 996 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 997 998u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE 999 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 1000 1001MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE) 1002 1003u-boot.ubl: u-boot-with-spl.bin FORCE 1004 $(call if_changed,mkimage) 1005 1006MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \ 1007 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ 1008 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 1009spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 1010 $(call if_changed,mkimage) 1011 1012OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1013u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 1014 $(call if_changed,pad_cat) 1015 1016u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 1017 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 1018u-boot.sb: u-boot.bin spl/u-boot-spl.bin 1019 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 1020 1021# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL. 1022# Both images are created using mkimage (crc etc), so that the ROM 1023# bootloader can check its integrity. Padding needs to be done to the 1024# SPL image (with mkimage header) and not the binary. Otherwise the resulting image 1025# which is loaded/copied by the ROM bootloader to SRAM doesn't fit. 1026# The resulting image containing both U-Boot images is called u-boot.spr 1027MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 1028 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 1029spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 1030 $(call if_changed,mkimage) 1031 1032OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1033 --gap-fill=0xff 1034u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE 1035 $(call if_changed,pad_cat) 1036 1037ifneq ($(CONFIG_ARCH_SOCFPGA),) 1038quiet_cmd_socboot = SOCBOOT $@ 1039cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1040 spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1041 u-boot.img > $@ || rm -f $@ 1042u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE 1043 $(call if_changed,socboot) 1044endif 1045 1046# x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including 1047# reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in 1048# the middle. 1049ifneq ($(CONFIG_X86_RESET_VECTOR),) 1050rom: u-boot.rom FORCE 1051 1052IFDTOOL=$(objtree)/tools/ifdtool 1053IFDTOOL_FLAGS = -f 0:$(objtree)/u-boot.dtb 1054IFDTOOL_FLAGS += -m 0x$(shell $(NM) u-boot |grep _dt_ucode_base_size |cut -d' ' -f1) 1055IFDTOOL_FLAGS += -U $(CONFIG_SYS_TEXT_BASE):$(objtree)/u-boot-nodtb.bin 1056IFDTOOL_FLAGS += -w $(CONFIG_SYS_X86_START16):$(objtree)/u-boot-x86-16bit.bin 1057IFDTOOL_FLAGS += -C 1058 1059ifneq ($(CONFIG_HAVE_INTEL_ME),) 1060IFDTOOL_ME_FLAGS = -D $(srctree)/board/$(BOARDDIR)/descriptor.bin 1061IFDTOOL_ME_FLAGS += -i ME:$(srctree)/board/$(BOARDDIR)/me.bin 1062endif 1063 1064ifneq ($(CONFIG_HAVE_MRC),) 1065IFDTOOL_FLAGS += -w $(CONFIG_X86_MRC_ADDR):$(srctree)/board/$(BOARDDIR)/mrc.bin 1066endif 1067 1068ifneq ($(CONFIG_HAVE_FSP),) 1069IFDTOOL_FLAGS += -w $(CONFIG_FSP_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_FSP_FILE) 1070endif 1071 1072ifneq ($(CONFIG_HAVE_CMC),) 1073IFDTOOL_FLAGS += -w $(CONFIG_CMC_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_CMC_FILE) 1074endif 1075 1076ifneq ($(CONFIG_HAVE_VGA_BIOS),) 1077IFDTOOL_FLAGS += -w $(CONFIG_VGA_BIOS_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_VGA_BIOS_FILE) 1078endif 1079 1080ifneq ($(CONFIG_HAVE_REFCODE),) 1081IFDTOOL_FLAGS += -w $(CONFIG_X86_REFCODE_ADDR):refcode.bin 1082endif 1083 1084quiet_cmd_ifdtool = IFDTOOL $@ 1085cmd_ifdtool = $(IFDTOOL) -c -r $(CONFIG_ROM_SIZE) u-boot.tmp; 1086ifneq ($(CONFIG_HAVE_INTEL_ME),) 1087cmd_ifdtool += $(IFDTOOL) $(IFDTOOL_ME_FLAGS) u-boot.tmp; 1088endif 1089cmd_ifdtool += $(IFDTOOL) $(IFDTOOL_FLAGS) u-boot.tmp; 1090cmd_ifdtool += mv u-boot.tmp $@ 1091 1092refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE 1093 $(call if_changed,copy) 1094 1095quiet_cmd_ldr = LD $@ 1096cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \ 1097 $(filter-out FORCE,$^) -o $@ 1098 1099u-boot.rom: u-boot-x86-16bit.bin u-boot.bin FORCE \ 1100 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) 1101 $(call if_changed,ifdtool) 1102 1103OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec 1104u-boot-x86-16bit.bin: u-boot FORCE 1105 $(call if_changed,objcopy) 1106endif 1107 1108ifneq ($(CONFIG_ARCH_SUNXI),) 1109OBJCOPYFLAGS_u-boot-sunxi-with-spl.bin = -I binary -O binary \ 1110 --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff 1111u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img FORCE 1112 $(call if_changed,pad_cat) 1113endif 1114 1115ifneq ($(CONFIG_TEGRA),) 1116OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 1117u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE 1118 $(call if_changed,pad_cat) 1119 1120OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 1121u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE 1122 $(call if_changed,pad_cat) 1123 1124u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE 1125 $(call if_changed,copy) 1126endif 1127 1128OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI) 1129u-boot-app.efi: u-boot FORCE 1130 $(call if_changed,zobjcopy) 1131 1132u-boot.bin.o: u-boot.bin FORCE 1133 $(call if_changed,efipayload) 1134 1135u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE 1136 $(call if_changed_dep,cpp_lds) 1137 1138# Rule to link the EFI payload which contains a stub and a U-Boot binary 1139quiet_cmd_u-boot_payload ?= LD $@ 1140 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \ 1141 -T u-boot-payload.lds arch/x86/cpu/call32.o \ 1142 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \ 1143 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB)) 1144 1145u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE 1146 $(call if_changed,u-boot_payload) 1147 1148OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI) 1149u-boot-payload.efi: u-boot-payload FORCE 1150 $(call if_changed,zobjcopy) 1151 1152u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 1153 $(call if_changed,cat) 1154 1155#Add a target to create boot binary having SPL binary in PBI format 1156#concatenated with u-boot binary. It is need by PowerPC SoC having 1157#internal SRAM <= 512KB. 1158MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1159 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \ 1160 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE) 1161 1162spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 1163 $(call if_changed,mkimage) 1164 1165ifeq ($(ARCH),arm) 1166UBOOT_BINLOAD := u-boot.img 1167else 1168UBOOT_BINLOAD := u-boot.bin 1169endif 1170 1171OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1172 --gap-fill=0xff 1173 1174u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE 1175 $(call if_changed,pad_cat) 1176 1177# PPC4xx needs the SPL at the end of the image, since the reset vector 1178# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target 1179# and need to introduce a new build target with the full blown U-Boot 1180# at the start padded up to the start of the SPL image. And then concat 1181# the SPL image to the end. 1182 1183OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ 1184 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff 1185u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE 1186 $(call if_changed,pad_cat) 1187 1188# Create a new ELF from a raw binary file. This is useful for arm64 1189# where static relocation needs to be performed on the raw binary, 1190# but certain simulators only accept an ELF file (but don't do the 1191# relocation). 1192# FIXME refactor dts/Makefile to share target/arch detection 1193u-boot.elf: u-boot.bin 1194 @$(OBJCOPY) -B aarch64 -I binary -O elf64-littleaarch64 \ 1195 $< u-boot-elf.o 1196 @$(LD) u-boot-elf.o -o $@ \ 1197 --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \ 1198 -Ttext=$(CONFIG_SYS_TEXT_BASE) 1199 1200# Rule to link u-boot 1201# May be overridden by arch/$(ARCH)/config.mk 1202quiet_cmd_u-boot__ ?= LD $@ 1203 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1204 -T u-boot.lds $(u-boot-init) \ 1205 --start-group $(u-boot-main) --end-group \ 1206 $(PLATFORM_LIBS) -Map u-boot.map 1207 1208quiet_cmd_smap = GEN common/system_map.o 1209cmd_smap = \ 1210 smap=`$(call SYSTEM_MAP,u-boot) | \ 1211 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1212 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1213 -c $(srctree)/common/system_map.c -o common/system_map.o 1214 1215u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE 1216 $(call if_changed,u-boot__) 1217ifeq ($(CONFIG_KALLSYMS),y) 1218 $(call cmd,smap) 1219 $(call cmd,u-boot__) common/system_map.o 1220endif 1221 1222quiet_cmd_sym ?= SYM $@ 1223 cmd_sym ?= $(OBJDUMP) -t $< > $@ 1224u-boot.sym: u-boot FORCE 1225 $(call if_changed,sym) 1226 1227# The actual objects are generated when descending, 1228# make sure no implicit rule kicks in 1229$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1230 1231# Handle descending into subdirectories listed in $(vmlinux-dirs) 1232# Preset locale variables to speed up the build process. Limit locale 1233# tweaks to this spot to avoid wrong language settings when running 1234# make menuconfig etc. 1235# Error messages still appears in the original language 1236 1237PHONY += $(u-boot-dirs) 1238$(u-boot-dirs): prepare scripts 1239 $(Q)$(MAKE) $(build)=$@ 1240 1241tools: prepare 1242# The "tools" are needed early 1243$(filter-out tools, $(u-boot-dirs)): tools 1244# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1245# is "yes"), so compile examples after U-Boot is compiled. 1246examples: $(filter-out examples, $(u-boot-dirs)) 1247 1248define filechk_uboot.release 1249 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1250endef 1251 1252# Store (new) UBOOTRELEASE string in include/config/uboot.release 1253include/config/uboot.release: include/config/auto.conf FORCE 1254 $(call filechk,uboot.release) 1255 1256 1257# Things we need to do before we recursively start building the kernel 1258# or the modules are listed in "prepare". 1259# A multi level approach is used. prepareN is processed before prepareN-1. 1260# archprepare is used in arch Makefiles and when processed asm symlink, 1261# version.h and scripts_basic is processed / created. 1262 1263# Listed in dependency order 1264PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1265 1266# prepare3 is used to check if we are building in a separate output directory, 1267# and if so do: 1268# 1) Check that make has not been executed in the kernel src $(srctree) 1269prepare3: include/config/uboot.release 1270ifneq ($(KBUILD_SRC),) 1271 @$(kecho) ' Using $(srctree) as source for U-Boot' 1272 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 1273 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1274 echo >&2 " in the '$(srctree)' directory.";\ 1275 /bin/false; \ 1276 fi; 1277endif 1278 1279# prepare2 creates a makefile if using a separate output directory 1280prepare2: prepare3 outputmakefile 1281 1282prepare1: prepare2 $(version_h) $(timestamp_h) \ 1283 include/config/auto.conf 1284ifeq ($(wildcard $(LDSCRIPT)),) 1285 @echo >&2 " Could not find linker script." 1286 @/bin/false 1287endif 1288 1289archprepare: prepare1 scripts_basic 1290 1291prepare0: archprepare FORCE 1292 $(Q)$(MAKE) $(build)=. 1293 1294# All the preparing.. 1295prepare: prepare0 1296 1297# Generate some files 1298# --------------------------------------------------------------------------- 1299 1300define filechk_version.h 1301 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1302 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1303 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \ 1304 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; ) 1305endef 1306 1307# The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date. 1308# The BSD date on the other hand behaves different and would produce errors 1309# with the misused '-d' switch. Respect that and search a working date with 1310# well known pre- and suffixes for the GNU variant of date. 1311define filechk_timestamp.h 1312 (if test -n "$${SOURCE_DATE_EPOCH}"; then \ 1313 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \ 1314 DATE=""; \ 1315 for date in gdate date.gnu date; do \ 1316 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \ 1317 done; \ 1318 if test -n "$${DATE}"; then \ 1319 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1320 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \ 1321 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \ 1322 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1323 else \ 1324 return 42; \ 1325 fi; \ 1326 else \ 1327 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1328 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \ 1329 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \ 1330 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1331 fi) 1332endef 1333 1334$(version_h): include/config/uboot.release FORCE 1335 $(call filechk,version.h) 1336 1337$(timestamp_h): $(srctree)/Makefile FORCE 1338 $(call filechk,timestamp.h) 1339 1340# --------------------------------------------------------------------------- 1341quiet_cmd_cpp_lds = LDS $@ 1342cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \ 1343 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 1344 1345u-boot.lds: $(LDSCRIPT) prepare FORCE 1346 $(call if_changed_dep,cpp_lds) 1347 1348spl/u-boot-spl.bin: spl/u-boot-spl 1349 @: 1350spl/u-boot-spl: tools prepare \ 1351 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) 1352 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all 1353 1354spl/sunxi-spl.bin: spl/u-boot-spl 1355 @: 1356 1357spl/u-boot-spl.sfp: spl/u-boot-spl 1358 @: 1359 1360spl/boot.bin: spl/u-boot-spl 1361 @: 1362 1363tpl/u-boot-tpl.bin: tools prepare 1364 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all 1365 1366TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) 1367 1368FIND := find 1369FINDFLAGS := -L 1370 1371tags ctags: 1372 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1373 -name '*.[chS]' -print` 1374 ln -s ctags tags 1375 1376etags: 1377 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1378 -name '*.[chS]' -print` 1379cscope: 1380 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 1381 cscope.files 1382 cscope -b -q -k 1383 1384SYSTEM_MAP = \ 1385 $(NM) $1 | \ 1386 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 1387 LC_ALL=C sort 1388System.map: u-boot 1389 @$(call SYSTEM_MAP,$<) > $@ 1390 1391checkdtc: 1392 @if test $(call dtc-version) -lt 0104; then \ 1393 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \ 1394 false; \ 1395 fi 1396 1397######################################################################### 1398 1399# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 1400# R_AARCH64_RELATIVE (64-bit). 1401checkarmreloc: u-boot 1402 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 1403 grep R_A | sort -u`"; \ 1404 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 1405 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 1406 echo "$< contains unexpected relocations: $$RELOC"; \ 1407 false; \ 1408 fi 1409 1410env: scripts_basic 1411 $(Q)$(MAKE) $(build)=tools/$@ 1412 1413tools-only: scripts_basic $(version_h) $(timestamp_h) 1414 $(Q)$(MAKE) $(build)=tools 1415 1416tools-all: export HOST_TOOLS_ALL=y 1417tools-all: env tools ; 1418 1419cross_tools: export CROSS_BUILD_TOOLS=y 1420cross_tools: tools ; 1421 1422.PHONY : CHANGELOG 1423CHANGELOG: 1424 git log --no-merges U-Boot-1_1_5.. | \ 1425 unexpand -a | sed -e 's/\s\s*$$//' > $@ 1426 1427######################################################################### 1428 1429### 1430# Cleaning is done on three levels. 1431# make clean Delete most generated files 1432# Leave enough to build external modules 1433# make mrproper Delete the current configuration, and all generated files 1434# make distclean Remove editor backup files, patch leftover files and the like 1435 1436# Directories & files removed with 'make clean' 1437CLEAN_DIRS += $(MODVERDIR) \ 1438 $(foreach d, spl tpl, $(patsubst %,$d/%, \ 1439 $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) 1440 1441CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h include/license.h \ 1442 boot* u-boot* MLO* SPL System.map 1443 1444# Directories & files removed with 'make mrproper' 1445MRPROPER_DIRS += include/config include/generated spl tpl \ 1446 .tmp_objdiff 1447MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ 1448 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS 1449 1450# clean - Delete most, but leave enough to build external modules 1451# 1452clean: rm-dirs := $(CLEAN_DIRS) 1453clean: rm-files := $(CLEAN_FILES) 1454 1455clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 1456 1457clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook) 1458 1459PHONY += $(clean-dirs) clean archclean 1460$(clean-dirs): 1461 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1462 1463# TODO: Do not use *.cfgtmp 1464clean: $(clean-dirs) 1465 $(call cmd,rmdirs) 1466 $(call cmd,rmfiles) 1467 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1468 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 1469 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \ 1470 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 1471 -o -name '*.symtypes' -o -name 'modules.order' \ 1472 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 1473 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \ 1474 -o -name '*.gcno' \) -type f -print | xargs rm -f 1475 1476# mrproper - Delete all generated files, including .config 1477# 1478mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 1479mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 1480mrproper-dirs := $(addprefix _mrproper_,scripts) 1481 1482PHONY += $(mrproper-dirs) mrproper archmrproper 1483$(mrproper-dirs): 1484 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 1485 1486mrproper: clean $(mrproper-dirs) 1487 $(call cmd,rmdirs) 1488 $(call cmd,rmfiles) 1489 @rm -f arch/*/include/asm/arch 1490 1491# distclean 1492# 1493PHONY += distclean 1494 1495distclean: mrproper 1496 @find $(srctree) $(RCS_FIND_IGNORE) \ 1497 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 1498 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 1499 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 1500 -o -name '*.pyc' \) \ 1501 -type f -print | xargs rm -f 1502 @rm -f boards.cfg 1503 1504backup: 1505 F=`basename $(srctree)` ; cd .. ; \ 1506 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 1507 1508help: 1509 @echo 'Cleaning targets:' 1510 @echo ' clean - Remove most generated files but keep the config' 1511 @echo ' mrproper - Remove all generated files + config + various backup files' 1512 @echo ' distclean - mrproper + remove editor backup and patch files' 1513 @echo '' 1514 @echo 'Configuration targets:' 1515 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 1516 @echo '' 1517 @echo 'Other generic targets:' 1518 @echo ' all - Build all necessary images depending on configuration' 1519 @echo ' tests - Build U-Boot for sandbox and run tests' 1520 @echo '* u-boot - Build the bare u-boot' 1521 @echo ' dir/ - Build all files in dir and below' 1522 @echo ' dir/file.[oisS] - Build specified target only' 1523 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 1524 @echo ' (requires a recent binutils and recent build (System.map))' 1525 @echo ' tags/ctags - Generate ctags file for editors' 1526 @echo ' etags - Generate etags file for editors' 1527 @echo ' cscope - Generate cscope index' 1528 @echo ' ubootrelease - Output the release version string (use with make -s)' 1529 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)' 1530 @echo '' 1531 @echo 'Static analysers' 1532 @echo ' checkstack - Generate a list of stack hogs' 1533 @echo '' 1534 @echo 'Documentation targets:' 1535 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp 1536 @echo '' 1537 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 1538 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 1539 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 1540 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 1541 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 1542 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 1543 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 1544 @echo ' 1: warnings which may be relevant and do not occur too often' 1545 @echo ' 2: warnings which occur quite often but may still be relevant' 1546 @echo ' 3: more obscure warnings, can most likely be ignored' 1547 @echo ' Multiple levels can be combined with W=12 or W=123' 1548 @echo '' 1549 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 1550 @echo 'For further info see the ./README file' 1551 1552tests: 1553 $(srctree)/test/run 1554 1555# Documentation targets 1556# --------------------------------------------------------------------------- 1557%docs: scripts_basic FORCE 1558 $(Q)$(MAKE) $(build)=scripts build_docproc 1559 $(Q)$(MAKE) $(build)=doc/DocBook $@ 1560 1561# Dummies... 1562PHONY += prepare scripts 1563prepare: ; 1564scripts: ; 1565 1566endif #ifeq ($(config-targets),1) 1567endif #ifeq ($(mixed-targets),1) 1568 1569PHONY += checkstack ubootrelease ubootversion 1570 1571checkstack: 1572 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 1573 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 1574 1575ubootrelease: 1576 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1577 1578ubootversion: 1579 @echo $(UBOOTVERSION) 1580 1581# Single targets 1582# --------------------------------------------------------------------------- 1583# Single targets are compatible with: 1584# - build with mixed source and output 1585# - build with separate output dir 'make O=...' 1586# - external modules 1587# 1588# target-dir => where to store outputfile 1589# build-dir => directory in kernel source tree to use 1590 1591ifeq ($(KBUILD_EXTMOD),) 1592 build-dir = $(patsubst %/,%,$(dir $@)) 1593 target-dir = $(dir $@) 1594else 1595 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 1596 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 1597 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 1598endif 1599 1600%.s: %.c prepare scripts FORCE 1601 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1602%.i: %.c prepare scripts FORCE 1603 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1604%.o: %.c prepare scripts FORCE 1605 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1606%.lst: %.c prepare scripts FORCE 1607 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1608%.s: %.S prepare scripts FORCE 1609 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1610%.o: %.S prepare scripts FORCE 1611 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1612%.symtypes: %.c prepare scripts FORCE 1613 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1614 1615# Modules 1616/: prepare scripts FORCE 1617 $(cmd_crmodverdir) 1618 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1619 $(build)=$(build-dir) 1620%/: prepare scripts FORCE 1621 $(cmd_crmodverdir) 1622 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1623 $(build)=$(build-dir) 1624%.ko: prepare scripts FORCE 1625 $(cmd_crmodverdir) 1626 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1627 $(build)=$(build-dir) $(@:.ko=.o) 1628 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1629 1630# FIXME Should go into a make.lib or something 1631# =========================================================================== 1632 1633quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 1634 cmd_rmdirs = rm -rf $(rm-dirs) 1635 1636quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 1637 cmd_rmfiles = rm -f $(rm-files) 1638 1639# read all saved command lines 1640 1641targets := $(wildcard $(sort $(targets))) 1642cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 1643 1644ifneq ($(cmd_files),) 1645 $(cmd_files): ; # Do not try to update included dependency files 1646 include $(cmd_files) 1647endif 1648 1649endif # skip-makefile 1650 1651PHONY += FORCE 1652FORCE: 1653 1654# Declare the contents of the .PHONY variable as phony. We keep that 1655# information in a variable so we can use it in if_changed and friends. 1656.PHONY: $(PHONY) 1657