1# 2# SPDX-License-Identifier: GPL-2.0+ 3# 4 5VERSION = 2017 6PATCHLEVEL = 05 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 CHECK CHECKFLAGS DTC DTC_FLAGS 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. 484 485# Additional helpers built in scripts/ 486# Carefully list dependencies so we do not try to build scripts twice 487# in parallel 488PHONY += scripts 489scripts: scripts_basic include/config/auto.conf 490 $(Q)$(MAKE) $(build)=$(@) 491 492ifeq ($(dot-config),1) 493# Read in config 494-include include/config/auto.conf 495 496# Read in dependencies to all Kconfig* files, make sure to run 497# oldconfig if changes are detected. 498-include include/config/auto.conf.cmd 499 500# To avoid any implicit rule to kick in, define an empty command 501$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; 502 503# If .config is newer than include/config/auto.conf, someone tinkered 504# with it and forgot to run make oldconfig. 505# if auto.conf.cmd is missing then we are probably in a cleaned tree so 506# we execute the config step to be sure to catch updated Kconfig files 507include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd 508 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig 509 @# If the following part fails, include/config/auto.conf should be 510 @# deleted so "make silentoldconfig" will be re-run on the next build. 511 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \ 512 { rm -f include/config/auto.conf; false; } 513 @# include/config.h has been updated after "make silentoldconfig". 514 @# We need to touch include/config/auto.conf so it gets newer 515 @# than include/config.h. 516 @# Otherwise, 'make silentoldconfig' would be invoked twice. 517 $(Q)touch include/config/auto.conf 518 519-include include/autoconf.mk 520-include include/autoconf.mk.dep 521 522# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf 523# is up-to-date. When we switch to a different board configuration, old CONFIG 524# macros are still remaining in include/config/auto.conf. Without the following 525# gimmick, wrong config.mk would be included leading nasty warnings/errors. 526ifneq ($(wildcard $(KCONFIG_CONFIG)),) 527ifneq ($(wildcard include/config/auto.conf),) 528autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \ 529 include/config/auto.conf) 530ifeq ($(autoconf_is_old),) 531include config.mk 532include arch/$(ARCH)/Makefile 533endif 534endif 535endif 536 537# These are set by the arch-specific config.mk. Make sure they are exported 538# so they can be used when building an EFI application. 539export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib 540export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib 541export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib 542export CFLAGS_EFI # Compiler flags to add when building EFI app 543export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app 544export EFI_TARGET # binutils target if EFI is natively supported 545 546# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use 547# that (or fail if absent). Otherwise, search for a linker script in a 548# standard location. 549 550ifndef LDSCRIPT 551 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug 552 ifdef CONFIG_SYS_LDSCRIPT 553 # need to strip off double quotes 554 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%) 555 endif 556endif 557 558# If there is no specified link script, we look in a number of places for it 559ifndef LDSCRIPT 560 ifeq ($(wildcard $(LDSCRIPT)),) 561 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds 562 endif 563 ifeq ($(wildcard $(LDSCRIPT)),) 564 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds 565 endif 566 ifeq ($(wildcard $(LDSCRIPT)),) 567 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds 568 endif 569endif 570 571else 572# Dummy target needed, because used as prerequisite 573include/config/auto.conf: ; 574endif # $(dot-config) 575 576# 577# Xtensa linker script cannot be preprocessed with -ansi because of 578# preprocessor operations on strings that don't make C identifiers. 579# 580ifeq ($(CONFIG_XTENSA),) 581LDPPFLAGS += -ansi 582endif 583 584ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 585KBUILD_CFLAGS += -Os 586else 587KBUILD_CFLAGS += -O2 588endif 589 590KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 591KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks) 592 593KBUILD_CFLAGS += -g 594# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 595# option to the assembler. 596KBUILD_AFLAGS += -g 597 598# Report stack usage if supported 599ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y) 600 KBUILD_CFLAGS += -fstack-usage 601endif 602 603KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) 604 605# turn jbsr into jsr for m68k 606ifeq ($(ARCH),m68k) 607ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4) 608KBUILD_AFLAGS += -Wa,-gstabs,-S 609endif 610endif 611 612# Prohibit date/time macros, which would make the build non-deterministic 613KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 614 615include scripts/Makefile.extrawarn 616 617# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 618KBUILD_CPPFLAGS += $(KCPPFLAGS) 619KBUILD_AFLAGS += $(KAFLAGS) 620KBUILD_CFLAGS += $(KCFLAGS) 621 622# Use UBOOTINCLUDE when you must reference the include/ directory. 623# Needed to be compatible with the O= option 624UBOOTINCLUDE := \ 625 -Iinclude \ 626 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 627 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \ 628 $(if $(CONFIG_HAS_THUMB2),, \ 629 -I$(srctree)/arch/$(ARCH)/thumb1/include),) \ 630 -I$(srctree)/arch/$(ARCH)/include \ 631 -include $(srctree)/include/linux/kconfig.h 632 633NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 634CHECKFLAGS += $(NOSTDINC_FLAGS) 635 636# FIX ME 637cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 638 $(NOSTDINC_FLAGS) 639c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 640 641######################################################################### 642# U-Boot objects....order is important (i.e. start must be first) 643 644HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 645 646libs-y += lib/ 647libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 648libs-$(CONFIG_OF_EMBED) += dts/ 649libs-y += fs/ 650libs-y += net/ 651libs-y += disk/ 652libs-y += drivers/ 653libs-y += drivers/dma/ 654libs-y += drivers/gpio/ 655libs-y += drivers/i2c/ 656libs-y += drivers/mmc/ 657libs-y += drivers/mtd/ 658libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/ 659libs-y += drivers/mtd/onenand/ 660libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/ 661libs-y += drivers/mtd/spi/ 662libs-y += drivers/net/ 663libs-y += drivers/net/phy/ 664libs-y += drivers/pci/ 665libs-y += drivers/power/ \ 666 drivers/power/domain/ \ 667 drivers/power/fuel_gauge/ \ 668 drivers/power/mfd/ \ 669 drivers/power/pmic/ \ 670 drivers/power/battery/ \ 671 drivers/power/regulator/ 672libs-y += drivers/spi/ 673libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/ 674libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ 675libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/ 676libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/ 677libs-y += drivers/serial/ 678libs-y += drivers/usb/dwc3/ 679libs-y += drivers/usb/common/ 680libs-y += drivers/usb/emul/ 681libs-y += drivers/usb/eth/ 682libs-y += drivers/usb/gadget/ 683libs-y += drivers/usb/gadget/udc/ 684libs-y += drivers/usb/host/ 685libs-y += drivers/usb/musb/ 686libs-y += drivers/usb/musb-new/ 687libs-y += drivers/usb/phy/ 688libs-y += drivers/usb/ulpi/ 689libs-y += cmd/ 690libs-y += common/ 691libs-$(CONFIG_API) += api/ 692libs-$(CONFIG_HAS_POST) += post/ 693libs-y += test/ 694libs-y += test/dm/ 695libs-$(CONFIG_UT_ENV) += test/env/ 696libs-$(CONFIG_UT_OVERLAY) += test/overlay/ 697 698libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 699 700libs-y := $(sort $(libs-y)) 701 702u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 703 704u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 705 706libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 707 708u-boot-init := $(head-y) 709u-boot-main := $(libs-y) 710 711 712# Add GCC lib 713ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 714PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 715else 716PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 717endif 718PLATFORM_LIBS += $(PLATFORM_LIBGCC) 719export PLATFORM_LIBS 720export PLATFORM_LIBGCC 721 722# Special flags for CPP when processing the linker script. 723# Pass the version down so we can handle backwards compatibility 724# on the fly. 725LDPPFLAGS += \ 726 -include $(srctree)/include/u-boot/u-boot.lds.h \ 727 -DCPUDIR=$(CPUDIR) \ 728 $(shell $(LD) --version | \ 729 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 730 731######################################################################### 732######################################################################### 733 734ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 735BOARD_SIZE_CHECK = \ 736 @actual=`wc -c $@ | awk '{print $$1}'`; \ 737 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \ 738 if test $$actual -gt $$limit; then \ 739 echo "$@ exceeds file size limit:" >&2 ; \ 740 echo " limit: $$limit bytes" >&2 ; \ 741 echo " actual: $$actual bytes" >&2 ; \ 742 echo " excess: $$((actual - limit)) bytes" >&2; \ 743 exit 1; \ 744 fi 745else 746BOARD_SIZE_CHECK = 747endif 748 749# Statically apply RELA-style relocations (currently arm64 only) 750ifneq ($(CONFIG_STATIC_RELA),) 751# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base 752DO_STATIC_RELA = \ 753 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \ 754 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \ 755 tools/relocate-rela $(2) $(3) $$start $$end 756else 757DO_STATIC_RELA = 758endif 759 760# Always append ALL so that arch config.mk's can add custom ones 761ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check 762 763ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin 764ifeq ($(CONFIG_SPL_FSL_PBL),y) 765ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 766else 767ifneq ($(CONFIG_SECURE_BOOT), y) 768# For Secure Boot The Image needs to be signed and Header must also 769# be included. So The image has to be built explicitly 770ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 771endif 772endif 773ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin 774ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy) 775ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img 776else 777ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 778endif 779ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 780ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb 781ifeq ($(CONFIG_SPL_FRAMEWORK),y) 782ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 783endif 784ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb 785ifneq ($(CONFIG_SPL_TARGET),) 786ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 787endif 788ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf 789ALL-$(CONFIG_EFI_APP) += u-boot-app.efi 790ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi 791 792ifneq ($(BUILD_ROM),) 793ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom 794endif 795 796# enable combined SPL/u-boot/dtb rules for tegra 797ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy) 798ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin 799ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin 800endif 801 802# Add optional build target if defined in board/cpu/soc headers 803ifneq ($(CONFIG_BUILD_TARGET),) 804ALL-y += $(CONFIG_BUILD_TARGET:"%"=%) 805endif 806 807LDFLAGS_u-boot += $(LDFLAGS_FINAL) 808 809# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards. 810LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker) 811 812ifneq ($(CONFIG_SYS_TEXT_BASE),) 813LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 814endif 815 816# Normally we fill empty space with 0xff 817quiet_cmd_objcopy = OBJCOPY $@ 818cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \ 819 $(OBJCOPYFLAGS_$(@F)) $< $@ 820 821# Provide a version which does not do this, for use by EFI 822quiet_cmd_zobjcopy = OBJCOPY $@ 823cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 824 825quiet_cmd_efipayload = OBJCOPY $@ 826cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@ 827 828MKIMAGEOUTPUT ?= /dev/null 829 830quiet_cmd_mkimage = MKIMAGE $@ 831cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 832 $(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT)) 833 834quiet_cmd_cat = CAT $@ 835cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 836 837append = cat $(filter-out $< $(PHONY), $^) >> $@ 838 839quiet_cmd_pad_cat = CAT $@ 840cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@ 841 842cfg: u-boot.cfg 843 844quiet_cmd_cfgcheck = CFGCHK $2 845cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \ 846 $(srctree)/scripts/config_whitelist.txt $(srctree) 847 848all: $(ALL-y) 849ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y) 850 @echo "===================== WARNING ======================" 851 @echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove" 852 @echo "(possibly in a subsequent patch in your series)" 853 @echo "before sending patches to the mailing list." 854 @echo "====================================================" 855endif 856 @# Check that this build does not use CONFIG options that we do not 857 @# know about unless they are in Kconfig. All the existing CONFIG 858 @# options are whitelisted, so new ones should not be added. 859 $(call cmd,cfgcheck,u-boot.cfg) 860 861PHONY += dtbs 862dtbs: dts/dt.dtb 863 @: 864dts/dt.dtb: checkdtc u-boot 865 $(Q)$(MAKE) $(build)=dts dtbs 866 867quiet_cmd_copy = COPY $@ 868 cmd_copy = cp $< $@ 869 870ifeq ($(CONFIG_OF_SEPARATE),y) 871u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE 872 $(call if_changed,cat) 873 874u-boot.bin: u-boot-dtb.bin FORCE 875 $(call if_changed,copy) 876else 877u-boot.bin: u-boot-nodtb.bin FORCE 878 $(call if_changed,copy) 879endif 880 881%.imx: %.bin 882 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 883 884%.vyb: %.imx 885 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@ 886 887quiet_cmd_copy = COPY $@ 888 cmd_copy = cp $< $@ 889 890u-boot.dtb: dts/dt.dtb 891 $(call cmd,copy) 892 893OBJCOPYFLAGS_u-boot.hex := -O ihex 894 895OBJCOPYFLAGS_u-boot.srec := -O srec 896 897u-boot.hex u-boot.srec: u-boot FORCE 898 $(call if_changed,objcopy) 899 900OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \ 901 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) 902 903binary_size_check: u-boot-nodtb.bin FORCE 904 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \ 905 map_size=$(shell cat u-boot.map | \ 906 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \ 907 | sed 's/0X//g' \ 908 | bc); \ 909 if [ "" != "$$map_size" ]; then \ 910 if test $$map_size -ne $$file_size; then \ 911 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ 912 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \ 913 exit 1; \ 914 fi \ 915 fi 916 917u-boot-nodtb.bin: u-boot FORCE 918 $(call if_changed,objcopy) 919 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE)) 920 $(BOARD_SIZE_CHECK) 921 922u-boot.ldr: u-boot 923 $(CREATE_LDR_ENV) 924 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS) 925 $(BOARD_SIZE_CHECK) 926 927# binman 928# --------------------------------------------------------------------------- 929quiet_cmd_binman = BINMAN $@ 930cmd_binman = $(srctree)/tools/binman/binman -d u-boot.dtb -O . \ 931 -I . -I $(srctree)/board/$(BOARDDIR) $< 932 933OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 934 935OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 936 937u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 938 $(call if_changed,objcopy) 939 940# 941# U-Boot entry point, needed for booting of full-blown U-Boot 942# from the SPL U-Boot version. 943# 944ifndef CONFIG_SYS_UBOOT_START 945CONFIG_SYS_UBOOT_START := 0 946endif 947 948# Create a file containing the configuration options the image was built with 949quiet_cmd_cpp_cfg = CFG $@ 950cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 951 -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $< 952 953ifdef CONFIG_SPL_LOAD_FIT 954MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 955 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 956 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \ 957 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) 958else 959MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 960 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 961 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 962MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \ 963 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 964 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 965u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log 966CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log 967endif 968 969MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 970 971MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 972 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 973 974MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 975 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \ 976 $(if $(KEYDIR),-k $(KEYDIR)) 977 978MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 979 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 980 981u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \ 982 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE 983 $(call if_changed,mkimage) 984 985u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE 986 $(call if_changed,mkimage) 987 988u-boot.sha1: u-boot.bin 989 tools/ubsha1 u-boot.bin 990 991u-boot.dis: u-boot 992 $(OBJDUMP) -d $< > $@ 993 994ifdef CONFIG_TPL 995SPL_PAYLOAD := tpl/u-boot-with-tpl.bin 996else 997SPL_PAYLOAD := u-boot.bin 998endif 999 1000OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1001 --pad-to=$(CONFIG_SPL_PAD_TO) 1002u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE 1003 $(call if_changed,pad_cat) 1004 1005MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE) 1006 1007lpc32xx-spl.img: spl/u-boot-spl.bin FORCE 1008 $(call if_changed,mkimage) 1009 1010OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1011 1012lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE 1013 $(call if_changed,objcopy) 1014 1015OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1016 1017lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE 1018 $(call if_changed,objcopy) 1019 1020lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE 1021 $(call if_changed,cat) 1022 1023CLEAN_FILES += lpc32xx-* 1024 1025OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 1026 --pad-to=$(CONFIG_TPL_PAD_TO) 1027tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 1028 $(call if_changed,pad_cat) 1029 1030SPL: spl/u-boot-spl.bin FORCE 1031 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 1032 1033u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE 1034 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 1035 1036MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE) 1037 1038u-boot.ubl: u-boot-with-spl.bin FORCE 1039 $(call if_changed,mkimage) 1040 1041MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \ 1042 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ 1043 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 1044spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 1045 $(call if_changed,mkimage) 1046 1047OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1048u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 1049 $(call if_changed,pad_cat) 1050 1051u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 1052 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 1053u-boot.sb: u-boot.bin spl/u-boot-spl.bin 1054 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 1055 1056# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL. 1057# Both images are created using mkimage (crc etc), so that the ROM 1058# bootloader can check its integrity. Padding needs to be done to the 1059# SPL image (with mkimage header) and not the binary. Otherwise the resulting image 1060# which is loaded/copied by the ROM bootloader to SRAM doesn't fit. 1061# The resulting image containing both U-Boot images is called u-boot.spr 1062MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 1063 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 1064spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 1065 $(call if_changed,mkimage) 1066 1067OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1068 --gap-fill=0xff 1069u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE 1070 $(call if_changed,pad_cat) 1071 1072ifneq ($(CONFIG_ARCH_SOCFPGA),) 1073quiet_cmd_socboot = SOCBOOT $@ 1074cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1075 spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1076 u-boot.img > $@ || rm -f $@ 1077u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE 1078 $(call if_changed,socboot) 1079endif 1080 1081# x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including 1082# reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in 1083# the middle. This is handled by binman based on an image description in the 1084# board's device tree. 1085ifneq ($(CONFIG_X86_RESET_VECTOR),) 1086rom: u-boot.rom FORCE 1087 1088refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE 1089 $(call if_changed,copy) 1090 1091quiet_cmd_ldr = LD $@ 1092cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \ 1093 $(filter-out FORCE,$^) -o $@ 1094 1095u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \ 1096 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \ 1097 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE 1098 $(call if_changed,binman) 1099 1100OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec 1101u-boot-x86-16bit.bin: u-boot FORCE 1102 $(call if_changed,objcopy) 1103endif 1104 1105ifneq ($(CONFIG_ARCH_SUNXI),) 1106u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE 1107 $(call if_changed,binman) 1108endif 1109 1110ifneq ($(CONFIG_TEGRA),) 1111OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 1112u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE 1113 $(call if_changed,pad_cat) 1114 1115OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 1116u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE 1117 $(call if_changed,pad_cat) 1118 1119u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE 1120 $(call if_changed,copy) 1121endif 1122 1123OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI) 1124u-boot-app.efi: u-boot FORCE 1125 $(call if_changed,zobjcopy) 1126 1127u-boot.bin.o: u-boot.bin FORCE 1128 $(call if_changed,efipayload) 1129 1130u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE 1131 $(call if_changed_dep,cpp_lds) 1132 1133# Rule to link the EFI payload which contains a stub and a U-Boot binary 1134quiet_cmd_u-boot_payload ?= LD $@ 1135 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \ 1136 -T u-boot-payload.lds arch/x86/cpu/call32.o \ 1137 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \ 1138 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB)) 1139 1140u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE 1141 $(call if_changed,u-boot_payload) 1142 1143OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI) 1144u-boot-payload.efi: u-boot-payload FORCE 1145 $(call if_changed,zobjcopy) 1146 1147u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 1148 $(call if_changed,cat) 1149 1150#Add a target to create boot binary having SPL binary in PBI format 1151#concatenated with u-boot binary. It is need by PowerPC SoC having 1152#internal SRAM <= 512KB. 1153MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1154 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \ 1155 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE) 1156 1157spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 1158 $(call if_changed,mkimage) 1159 1160ifeq ($(ARCH),arm) 1161UBOOT_BINLOAD := u-boot.img 1162else 1163UBOOT_BINLOAD := u-boot.bin 1164endif 1165 1166OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1167 --gap-fill=0xff 1168 1169u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE 1170 $(call if_changed,pad_cat) 1171 1172# PPC4xx needs the SPL at the end of the image, since the reset vector 1173# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target 1174# and need to introduce a new build target with the full blown U-Boot 1175# at the start padded up to the start of the SPL image. And then concat 1176# the SPL image to the end. 1177 1178OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ 1179 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff 1180u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE 1181 $(call if_changed,pad_cat) 1182 1183# Create a new ELF from a raw binary file. This is useful for arm64 1184# where static relocation needs to be performed on the raw binary, 1185# but certain simulators only accept an ELF file (but don't do the 1186# relocation). 1187# FIXME refactor dts/Makefile to share target/arch detection 1188u-boot.elf: u-boot.bin 1189 @$(OBJCOPY) -B aarch64 -I binary -O elf64-littleaarch64 \ 1190 $< u-boot-elf.o 1191 @$(LD) u-boot-elf.o -o $@ \ 1192 --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \ 1193 -Ttext=$(CONFIG_SYS_TEXT_BASE) 1194 1195# Rule to link u-boot 1196# May be overridden by arch/$(ARCH)/config.mk 1197quiet_cmd_u-boot__ ?= LD $@ 1198 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1199 -T u-boot.lds $(u-boot-init) \ 1200 --start-group $(u-boot-main) --end-group \ 1201 $(PLATFORM_LIBS) -Map u-boot.map 1202 1203quiet_cmd_smap = GEN common/system_map.o 1204cmd_smap = \ 1205 smap=`$(call SYSTEM_MAP,u-boot) | \ 1206 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1207 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1208 -c $(srctree)/common/system_map.c -o common/system_map.o 1209 1210u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE 1211 $(call if_changed,u-boot__) 1212ifeq ($(CONFIG_KALLSYMS),y) 1213 $(call cmd,smap) 1214 $(call cmd,u-boot__) common/system_map.o 1215endif 1216 1217quiet_cmd_sym ?= SYM $@ 1218 cmd_sym ?= $(OBJDUMP) -t $< > $@ 1219u-boot.sym: u-boot FORCE 1220 $(call if_changed,sym) 1221 1222# The actual objects are generated when descending, 1223# make sure no implicit rule kicks in 1224$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1225 1226# Handle descending into subdirectories listed in $(vmlinux-dirs) 1227# Preset locale variables to speed up the build process. Limit locale 1228# tweaks to this spot to avoid wrong language settings when running 1229# make menuconfig etc. 1230# Error messages still appears in the original language 1231 1232PHONY += $(u-boot-dirs) 1233$(u-boot-dirs): prepare scripts 1234 $(Q)$(MAKE) $(build)=$@ 1235 1236tools: prepare 1237# The "tools" are needed early 1238$(filter-out tools, $(u-boot-dirs)): tools 1239# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1240# is "yes"), so compile examples after U-Boot is compiled. 1241examples: $(filter-out examples, $(u-boot-dirs)) 1242 1243define filechk_uboot.release 1244 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1245endef 1246 1247# Store (new) UBOOTRELEASE string in include/config/uboot.release 1248include/config/uboot.release: include/config/auto.conf FORCE 1249 $(call filechk,uboot.release) 1250 1251 1252# Things we need to do before we recursively start building the kernel 1253# or the modules are listed in "prepare". 1254# A multi level approach is used. prepareN is processed before prepareN-1. 1255# archprepare is used in arch Makefiles and when processed asm symlink, 1256# version.h and scripts_basic is processed / created. 1257 1258# Listed in dependency order 1259PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1260 1261# prepare3 is used to check if we are building in a separate output directory, 1262# and if so do: 1263# 1) Check that make has not been executed in the kernel src $(srctree) 1264prepare3: include/config/uboot.release 1265ifneq ($(KBUILD_SRC),) 1266 @$(kecho) ' Using $(srctree) as source for U-Boot' 1267 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 1268 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1269 echo >&2 " in the '$(srctree)' directory.";\ 1270 /bin/false; \ 1271 fi; 1272endif 1273 1274# prepare2 creates a makefile if using a separate output directory 1275prepare2: prepare3 outputmakefile 1276 1277prepare1: prepare2 $(version_h) $(timestamp_h) \ 1278 include/config/auto.conf 1279ifeq ($(wildcard $(LDSCRIPT)),) 1280 @echo >&2 " Could not find linker script." 1281 @/bin/false 1282endif 1283 1284archprepare: prepare1 scripts_basic 1285 1286prepare0: archprepare FORCE 1287 $(Q)$(MAKE) $(build)=. 1288 1289# All the preparing.. 1290prepare: prepare0 1291 1292# Generate some files 1293# --------------------------------------------------------------------------- 1294 1295define filechk_version.h 1296 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1297 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1298 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \ 1299 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; ) 1300endef 1301 1302# The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date. 1303# The BSD date on the other hand behaves different and would produce errors 1304# with the misused '-d' switch. Respect that and search a working date with 1305# well known pre- and suffixes for the GNU variant of date. 1306define filechk_timestamp.h 1307 (if test -n "$${SOURCE_DATE_EPOCH}"; then \ 1308 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \ 1309 DATE=""; \ 1310 for date in gdate date.gnu date; do \ 1311 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \ 1312 done; \ 1313 if test -n "$${DATE}"; then \ 1314 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1315 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \ 1316 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \ 1317 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1318 else \ 1319 return 42; \ 1320 fi; \ 1321 else \ 1322 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1323 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \ 1324 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \ 1325 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1326 fi) 1327endef 1328 1329$(version_h): include/config/uboot.release FORCE 1330 $(call filechk,version.h) 1331 1332$(timestamp_h): $(srctree)/Makefile FORCE 1333 $(call filechk,timestamp.h) 1334 1335# --------------------------------------------------------------------------- 1336quiet_cmd_cpp_lds = LDS $@ 1337cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \ 1338 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 1339 1340u-boot.lds: $(LDSCRIPT) prepare FORCE 1341 $(call if_changed_dep,cpp_lds) 1342 1343spl/u-boot-spl.bin: spl/u-boot-spl 1344 @: 1345spl/u-boot-spl: tools prepare \ 1346 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) 1347 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all 1348 1349spl/sunxi-spl.bin: spl/u-boot-spl 1350 @: 1351 1352spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin 1353 @: 1354 1355spl/u-boot-spl.sfp: spl/u-boot-spl 1356 @: 1357 1358spl/boot.bin: spl/u-boot-spl 1359 @: 1360 1361tpl/u-boot-tpl.bin: tools prepare \ 1362 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) 1363 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all 1364 1365TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) 1366 1367FIND := find 1368FINDFLAGS := -L 1369 1370tags ctags: 1371 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1372 -name '*.[chS]' -print` 1373 ln -s ctags tags 1374 1375etags: 1376 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1377 -name '*.[chS]' -print` 1378cscope: 1379 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 1380 cscope.files 1381 cscope -b -q -k 1382 1383SYSTEM_MAP = \ 1384 $(NM) $1 | \ 1385 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 1386 LC_ALL=C sort 1387System.map: u-boot 1388 @$(call SYSTEM_MAP,$<) > $@ 1389 1390checkdtc: 1391 @if test $(call dtc-version) -lt 0104; then \ 1392 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \ 1393 false; \ 1394 fi 1395 1396######################################################################### 1397 1398# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 1399# R_AARCH64_RELATIVE (64-bit). 1400checkarmreloc: u-boot 1401 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 1402 grep R_A | sort -u`"; \ 1403 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 1404 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 1405 echo "$< contains unexpected relocations: $$RELOC"; \ 1406 false; \ 1407 fi 1408 1409env: scripts_basic 1410 $(Q)$(MAKE) $(build)=tools/$@ 1411 1412tools-only: scripts_basic $(version_h) $(timestamp_h) 1413 $(Q)$(MAKE) $(build)=tools 1414 1415tools-all: export HOST_TOOLS_ALL=y 1416tools-all: env tools ; 1417 1418cross_tools: export CROSS_BUILD_TOOLS=y 1419cross_tools: tools ; 1420 1421.PHONY : CHANGELOG 1422CHANGELOG: 1423 git log --no-merges U-Boot-1_1_5.. | \ 1424 unexpand -a | sed -e 's/\s\s*$$//' > $@ 1425 1426######################################################################### 1427 1428### 1429# Cleaning is done on three levels. 1430# make clean Delete most generated files 1431# Leave enough to build external modules 1432# make mrproper Delete the current configuration, and all generated files 1433# make distclean Remove editor backup files, patch leftover files and the like 1434 1435# Directories & files removed with 'make clean' 1436CLEAN_DIRS += $(MODVERDIR) \ 1437 $(foreach d, spl tpl, $(patsubst %,$d/%, \ 1438 $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) 1439 1440CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \ 1441 boot* u-boot* MLO* SPL System.map 1442 1443# Directories & files removed with 'make mrproper' 1444MRPROPER_DIRS += include/config include/generated spl tpl \ 1445 .tmp_objdiff 1446MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ 1447 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS 1448 1449# clean - Delete most, but leave enough to build external modules 1450# 1451clean: rm-dirs := $(CLEAN_DIRS) 1452clean: rm-files := $(CLEAN_FILES) 1453 1454clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 1455 1456clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook) 1457 1458PHONY += $(clean-dirs) clean archclean 1459$(clean-dirs): 1460 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1461 1462# TODO: Do not use *.cfgtmp 1463clean: $(clean-dirs) 1464 $(call cmd,rmdirs) 1465 $(call cmd,rmfiles) 1466 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1467 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 1468 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \ 1469 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 1470 -o -name '*.symtypes' -o -name 'modules.order' \ 1471 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 1472 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \ 1473 -o -name '*.gcno' \) -type f -print | xargs rm -f 1474 1475# mrproper - Delete all generated files, including .config 1476# 1477mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 1478mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 1479mrproper-dirs := $(addprefix _mrproper_,scripts) 1480 1481PHONY += $(mrproper-dirs) mrproper archmrproper 1482$(mrproper-dirs): 1483 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 1484 1485mrproper: clean $(mrproper-dirs) 1486 $(call cmd,rmdirs) 1487 $(call cmd,rmfiles) 1488 @rm -f arch/*/include/asm/arch 1489 1490# distclean 1491# 1492PHONY += distclean 1493 1494distclean: mrproper 1495 @find $(srctree) $(RCS_FIND_IGNORE) \ 1496 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 1497 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 1498 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 1499 -o -name '*.pyc' \) \ 1500 -type f -print | xargs rm -f 1501 @rm -f boards.cfg 1502 1503backup: 1504 F=`basename $(srctree)` ; cd .. ; \ 1505 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 1506 1507help: 1508 @echo 'Cleaning targets:' 1509 @echo ' clean - Remove most generated files but keep the config' 1510 @echo ' mrproper - Remove all generated files + config + various backup files' 1511 @echo ' distclean - mrproper + remove editor backup and patch files' 1512 @echo '' 1513 @echo 'Configuration targets:' 1514 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 1515 @echo '' 1516 @echo 'Other generic targets:' 1517 @echo ' all - Build all necessary images depending on configuration' 1518 @echo ' tests - Build U-Boot for sandbox and run tests' 1519 @echo '* u-boot - Build the bare u-boot' 1520 @echo ' dir/ - Build all files in dir and below' 1521 @echo ' dir/file.[oisS] - Build specified target only' 1522 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 1523 @echo ' (requires a recent binutils and recent build (System.map))' 1524 @echo ' tags/ctags - Generate ctags file for editors' 1525 @echo ' etags - Generate etags file for editors' 1526 @echo ' cscope - Generate cscope index' 1527 @echo ' ubootrelease - Output the release version string (use with make -s)' 1528 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)' 1529 @echo " cfg - Don't build, just create the .cfg files" 1530 @echo '' 1531 @echo 'Static analysers' 1532 @echo ' checkstack - Generate a list of stack hogs' 1533 @echo '' 1534 @echo 'Documentation targets:' 1535 @$(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 $@ 1560 1561endif #ifeq ($(config-targets),1) 1562endif #ifeq ($(mixed-targets),1) 1563 1564PHONY += checkstack ubootrelease ubootversion 1565 1566checkstack: 1567 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 1568 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 1569 1570ubootrelease: 1571 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1572 1573ubootversion: 1574 @echo $(UBOOTVERSION) 1575 1576# Single targets 1577# --------------------------------------------------------------------------- 1578# Single targets are compatible with: 1579# - build with mixed source and output 1580# - build with separate output dir 'make O=...' 1581# - external modules 1582# 1583# target-dir => where to store outputfile 1584# build-dir => directory in kernel source tree to use 1585 1586ifeq ($(KBUILD_EXTMOD),) 1587 build-dir = $(patsubst %/,%,$(dir $@)) 1588 target-dir = $(dir $@) 1589else 1590 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 1591 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 1592 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 1593endif 1594 1595%.s: %.c prepare scripts FORCE 1596 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1597%.i: %.c prepare scripts FORCE 1598 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1599%.o: %.c prepare scripts FORCE 1600 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1601%.lst: %.c prepare scripts FORCE 1602 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1603%.s: %.S prepare scripts FORCE 1604 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1605%.o: %.S prepare scripts FORCE 1606 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1607%.symtypes: %.c prepare scripts FORCE 1608 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1609 1610# Modules 1611/: prepare scripts FORCE 1612 $(cmd_crmodverdir) 1613 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1614 $(build)=$(build-dir) 1615%/: prepare scripts FORCE 1616 $(cmd_crmodverdir) 1617 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1618 $(build)=$(build-dir) 1619%.ko: prepare scripts FORCE 1620 $(cmd_crmodverdir) 1621 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1622 $(build)=$(build-dir) $(@:.ko=.o) 1623 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1624 1625# FIXME Should go into a make.lib or something 1626# =========================================================================== 1627 1628quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 1629 cmd_rmdirs = rm -rf $(rm-dirs) 1630 1631quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 1632 cmd_rmfiles = rm -f $(rm-files) 1633 1634# read all saved command lines 1635 1636targets := $(wildcard $(sort $(targets))) 1637cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 1638 1639ifneq ($(cmd_files),) 1640 $(cmd_files): ; # Do not try to update included dependency files 1641 include $(cmd_files) 1642endif 1643 1644endif # skip-makefile 1645 1646PHONY += FORCE 1647FORCE: 1648 1649# Declare the contents of the .PHONY variable as phony. We keep that 1650# information in a variable so we can use it in if_changed and friends. 1651.PHONY: $(PHONY) 1652