1# 2# SPDX-License-Identifier: GPL-2.0+ 3# 4 5VERSION = 2016 6PATCHLEVEL = 03 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 260HOSTCXXFLAGS = -O2 261 262ifeq ($(HOSTOS),cygwin) 263HOSTCFLAGS += -ansi 264endif 265 266# Mac OS X / Darwin's C preprocessor is Apple specific. It 267# generates numerous errors and warnings. We want to bypass it 268# and use GNU C's cpp. To do this we pass the -traditional-cpp 269# option to the compiler. Note that the -traditional-cpp flag 270# DOES NOT have the same semantics as GNU C's flag, all it does 271# is invoke the GNU preprocessor in stock ANSI/ISO C fashion. 272# 273# Apple's linker is similar, thanks to the new 2 stage linking 274# multiple symbol definitions are treated as errors, hence the 275# -multiply_defined suppress option to turn off this error. 276# 277ifeq ($(HOSTOS),darwin) 278# get major and minor product version (e.g. '10' and '6' for Snow Leopard) 279DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.') 280DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.') 281 282os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \ 283 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;) 284 285# Snow Leopards build environment has no longer restrictions as described above 286HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc") 287HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp") 288HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress") 289 290# since Lion (10.7) ASLR is on by default, but we use linker generated lists 291# in some host tools which is a problem then ... so disable ASLR for these 292# tools 293HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie") 294endif 295 296# Decide whether to build built-in, modular, or both. 297# Normally, just do built-in. 298 299KBUILD_MODULES := 300KBUILD_BUILTIN := 1 301 302# If we have only "make modules", don't compile built-in objects. 303# When we're building modules with modversions, we need to consider 304# the built-in objects during the descend as well, in order to 305# make sure the checksums are up to date before we record them. 306 307ifeq ($(MAKECMDGOALS),modules) 308 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) 309endif 310 311# If we have "make <whatever> modules", compile modules 312# in addition to whatever we do anyway. 313# Just "make" or "make all" shall build modules as well 314 315# U-Boot does not need modules 316#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) 317# KBUILD_MODULES := 1 318#endif 319 320#ifeq ($(MAKECMDGOALS),) 321# KBUILD_MODULES := 1 322#endif 323 324export KBUILD_MODULES KBUILD_BUILTIN 325export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD 326 327# We need some generic definitions (do not try to remake the file). 328scripts/Kbuild.include: ; 329include scripts/Kbuild.include 330 331# Make variables (CC, etc...) 332 333AS = $(CROSS_COMPILE)as 334# Always use GNU ld 335ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),) 336LD = $(CROSS_COMPILE)ld.bfd 337else 338LD = $(CROSS_COMPILE)ld 339endif 340CC = $(CROSS_COMPILE)gcc 341CPP = $(CC) -E 342AR = $(CROSS_COMPILE)ar 343NM = $(CROSS_COMPILE)nm 344LDR = $(CROSS_COMPILE)ldr 345STRIP = $(CROSS_COMPILE)strip 346OBJCOPY = $(CROSS_COMPILE)objcopy 347OBJDUMP = $(CROSS_COMPILE)objdump 348AWK = awk 349PERL = perl 350PYTHON = python 351DTC = dtc 352CHECK = sparse 353 354CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ 355 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF) 356 357KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__ 358 359KBUILD_CFLAGS := -Wall -Wstrict-prototypes \ 360 -Wno-format-security \ 361 -fno-builtin -ffreestanding 362KBUILD_AFLAGS := -D__ASSEMBLY__ 363 364# Read UBOOTRELEASE from include/config/uboot.release (if it exists) 365UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null) 366UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) 367 368export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION 369export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR 370export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC 371export CPP AR NM LDR STRIP OBJCOPY OBJDUMP 372export MAKE AWK PERL PYTHON 373export HOSTCXX HOSTCXXFLAGS DTC CHECK CHECKFLAGS 374 375export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS 376export KBUILD_CFLAGS KBUILD_AFLAGS 377 378# When compiling out-of-tree modules, put MODVERDIR in the module 379# tree rather than in the kernel tree. The kernel tree might 380# even be read-only. 381export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions 382 383# Files to ignore in find ... statements 384 385export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ 386 -name CVS -o -name .pc -o -name .hg -o -name .git \) \ 387 -prune -o 388export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ 389 --exclude CVS --exclude .pc --exclude .hg --exclude .git 390 391# =========================================================================== 392# Rules shared between *config targets and build targets 393 394# Basic helpers built in scripts/ 395PHONY += scripts_basic 396scripts_basic: 397 $(Q)$(MAKE) $(build)=scripts/basic 398 $(Q)rm -f .tmp_quiet_recordmcount 399 400# To avoid any implicit rule to kick in, define an empty command. 401scripts/basic/%: scripts_basic ; 402 403PHONY += outputmakefile 404# outputmakefile generates a Makefile in the output directory, if using a 405# separate output directory. This allows convenient use of make in the 406# output directory. 407outputmakefile: 408ifneq ($(KBUILD_SRC),) 409 $(Q)ln -fsn $(srctree) source 410 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ 411 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) 412endif 413 414# To make sure we do not include .config for any of the *config targets 415# catch them early, and hand them over to scripts/kconfig/Makefile 416# It is allowed to specify more targets when calling make, including 417# mixing *config targets and build targets. 418# For example 'make oldconfig all'. 419# Detect when mixed targets is specified, and make a second invocation 420# of make so .config is not included in this case either (for *config). 421 422version_h := include/generated/version_autogenerated.h 423timestamp_h := include/generated/timestamp_autogenerated.h 424 425no-dot-config-targets := clean clobber mrproper distclean \ 426 help %docs check% coccicheck \ 427 ubootversion backup 428 429config-targets := 0 430mixed-targets := 0 431dot-config := 1 432 433ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) 434 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) 435 dot-config := 0 436 endif 437endif 438 439ifeq ($(KBUILD_EXTMOD),) 440 ifneq ($(filter config %config,$(MAKECMDGOALS)),) 441 config-targets := 1 442 ifneq ($(words $(MAKECMDGOALS)),1) 443 mixed-targets := 1 444 endif 445 endif 446endif 447 448ifeq ($(mixed-targets),1) 449# =========================================================================== 450# We're called with mixed targets (*config and build targets). 451# Handle them one by one. 452 453PHONY += $(MAKECMDGOALS) __build_one_by_one 454 455$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one 456 @: 457 458__build_one_by_one: 459 $(Q)set -e; \ 460 for i in $(MAKECMDGOALS); do \ 461 $(MAKE) -f $(srctree)/Makefile $$i; \ 462 done 463 464else 465ifeq ($(config-targets),1) 466# =========================================================================== 467# *config targets only - make sure prerequisites are updated, and descend 468# in scripts/kconfig to make the *config target 469 470KBUILD_DEFCONFIG := sandbox_defconfig 471export KBUILD_DEFCONFIG KBUILD_KCONFIG 472 473config: scripts_basic outputmakefile FORCE 474 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 475 476%config: scripts_basic outputmakefile FORCE 477 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 478 479else 480# =========================================================================== 481# Build targets only - this includes vmlinux, arch specific targets, clean 482# targets and others. In general all targets except *config targets. 483 484ifeq ($(dot-config),1) 485# Read in config 486-include include/config/auto.conf 487 488# Read in dependencies to all Kconfig* files, make sure to run 489# oldconfig if changes are detected. 490-include include/config/auto.conf.cmd 491 492# To avoid any implicit rule to kick in, define an empty command 493$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; 494 495# If .config is newer than include/config/auto.conf, someone tinkered 496# with it and forgot to run make oldconfig. 497# if auto.conf.cmd is missing then we are probably in a cleaned tree so 498# we execute the config step to be sure to catch updated Kconfig files 499include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd 500 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig 501 @# If the following part fails, include/config/auto.conf should be 502 @# deleted so "make silentoldconfig" will be re-run on the next build. 503 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \ 504 { rm -f include/config/auto.conf; false; } 505 @# include/config.h has been updated after "make silentoldconfig". 506 @# We need to touch include/config/auto.conf so it gets newer 507 @# than include/config.h. 508 @# Otherwise, 'make silentoldconfig' would be invoked twice. 509 $(Q)touch include/config/auto.conf 510 511-include include/autoconf.mk 512-include include/autoconf.mk.dep 513 514# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf 515# is up-to-date. When we switch to a different board configuration, old CONFIG 516# macros are still remaining in include/config/auto.conf. Without the following 517# gimmick, wrong config.mk would be included leading nasty warnings/errors. 518ifneq ($(wildcard $(KCONFIG_CONFIG)),) 519ifneq ($(wildcard include/config/auto.conf),) 520autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \ 521 include/config/auto.conf) 522ifeq ($(autoconf_is_old),) 523include config.mk 524include arch/$(ARCH)/Makefile 525endif 526endif 527endif 528 529# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use 530# that (or fail if absent). Otherwise, search for a linker script in a 531# standard location. 532 533ifndef LDSCRIPT 534 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug 535 ifdef CONFIG_SYS_LDSCRIPT 536 # need to strip off double quotes 537 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%) 538 endif 539endif 540 541# If there is no specified link script, we look in a number of places for it 542ifndef LDSCRIPT 543 ifeq ($(wildcard $(LDSCRIPT)),) 544 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds 545 endif 546 ifeq ($(wildcard $(LDSCRIPT)),) 547 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds 548 endif 549 ifeq ($(wildcard $(LDSCRIPT)),) 550 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds 551 endif 552endif 553 554else 555# Dummy target needed, because used as prerequisite 556include/config/auto.conf: ; 557endif # $(dot-config) 558 559ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 560KBUILD_CFLAGS += -Os 561else 562KBUILD_CFLAGS += -O2 563endif 564 565KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 566KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks) 567 568KBUILD_CFLAGS += -g 569# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 570# option to the assembler. 571KBUILD_AFLAGS += -g 572 573# Report stack usage if supported 574ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y) 575 KBUILD_CFLAGS += -fstack-usage 576endif 577 578KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) 579 580# turn jbsr into jsr for m68k 581ifeq ($(ARCH),m68k) 582ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4) 583KBUILD_AFLAGS += -Wa,-gstabs,-S 584endif 585endif 586 587# Prohibit date/time macros, which would make the build non-deterministic 588KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 589 590include scripts/Makefile.extrawarn 591 592# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 593KBUILD_CPPFLAGS += $(KCPPFLAGS) 594KBUILD_AFLAGS += $(KAFLAGS) 595KBUILD_CFLAGS += $(KCFLAGS) 596 597# Use UBOOTINCLUDE when you must reference the include/ directory. 598# Needed to be compatible with the O= option 599UBOOTINCLUDE := \ 600 -Iinclude \ 601 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 602 $(if $(CONFIG_SYS_THUMB_BUILD), $(if $(CONFIG_HAS_THUMB2),, \ 603 -I$(srctree)/arch/$(ARCH)/thumb1/include),) \ 604 -I$(srctree)/arch/$(ARCH)/include \ 605 -include $(srctree)/include/linux/kconfig.h 606 607NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 608CHECKFLAGS += $(NOSTDINC_FLAGS) 609 610# FIX ME 611cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 612 $(NOSTDINC_FLAGS) 613c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 614 615######################################################################### 616# U-Boot objects....order is important (i.e. start must be first) 617 618HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 619 620libs-y += lib/ 621libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 622libs-$(CONFIG_OF_EMBED) += dts/ 623libs-y += fs/ 624libs-y += net/ 625libs-y += disk/ 626libs-y += drivers/ 627libs-y += drivers/dma/ 628libs-y += drivers/gpio/ 629libs-y += drivers/i2c/ 630libs-y += drivers/mmc/ 631libs-y += drivers/mtd/ 632libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/ 633libs-y += drivers/mtd/onenand/ 634libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/ 635libs-y += drivers/mtd/spi/ 636libs-y += drivers/net/ 637libs-y += drivers/net/phy/ 638libs-y += drivers/pci/ 639libs-y += drivers/power/ \ 640 drivers/power/fuel_gauge/ \ 641 drivers/power/mfd/ \ 642 drivers/power/pmic/ \ 643 drivers/power/battery/ \ 644 drivers/power/regulator/ 645libs-y += drivers/spi/ 646libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/ 647libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ 648libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/ 649libs-y += drivers/serial/ 650libs-y += drivers/usb/dwc3/ 651libs-y += drivers/usb/emul/ 652libs-y += drivers/usb/eth/ 653libs-y += drivers/usb/gadget/ 654libs-y += drivers/usb/gadget/udc/ 655libs-y += drivers/usb/host/ 656libs-y += drivers/usb/musb/ 657libs-y += drivers/usb/musb-new/ 658libs-y += drivers/usb/phy/ 659libs-y += drivers/usb/ulpi/ 660libs-y += cmd/ 661libs-y += common/ 662libs-$(CONFIG_API) += api/ 663libs-$(CONFIG_HAS_POST) += post/ 664libs-y += test/ 665libs-y += test/dm/ 666libs-$(CONFIG_UT_ENV) += test/env/ 667 668libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 669 670libs-y := $(sort $(libs-y)) 671 672u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 673 674u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 675 676libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 677 678u-boot-init := $(head-y) 679u-boot-main := $(libs-y) 680 681 682# Add GCC lib 683ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 684PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 685else 686PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 687endif 688PLATFORM_LIBS += $(PLATFORM_LIBGCC) 689export PLATFORM_LIBS 690export PLATFORM_LIBGCC 691 692# Special flags for CPP when processing the linker script. 693# Pass the version down so we can handle backwards compatibility 694# on the fly. 695LDPPFLAGS += \ 696 -include $(srctree)/include/u-boot/u-boot.lds.h \ 697 -DCPUDIR=$(CPUDIR) \ 698 $(shell $(LD) --version | \ 699 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 700 701######################################################################### 702######################################################################### 703 704ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 705BOARD_SIZE_CHECK = \ 706 @actual=`wc -c $@ | awk '{print $$1}'`; \ 707 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \ 708 if test $$actual -gt $$limit; then \ 709 echo "$@ exceeds file size limit:" >&2 ; \ 710 echo " limit: $$limit bytes" >&2 ; \ 711 echo " actual: $$actual bytes" >&2 ; \ 712 echo " excess: $$((actual - limit)) bytes" >&2; \ 713 exit 1; \ 714 fi 715else 716BOARD_SIZE_CHECK = 717endif 718 719# Statically apply RELA-style relocations (currently arm64 only) 720ifneq ($(CONFIG_STATIC_RELA),) 721# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base 722DO_STATIC_RELA = \ 723 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \ 724 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \ 725 tools/relocate-rela $(2) $(3) $$start $$end 726else 727DO_STATIC_RELA = 728endif 729 730# Always append ALL so that arch config.mk's can add custom ones 731ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map u-boot.cfg binary_size_check 732 733ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin 734ifeq ($(CONFIG_SPL_FSL_PBL),y) 735ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 736else 737ifneq ($(CONFIG_SECURE_BOOT), y) 738# For Secure Boot The Image needs to be signed and Header must also 739# be included. So The image has to be built explicitly 740ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 741endif 742endif 743ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin 744ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 745ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 746ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb 747ifeq ($(CONFIG_SPL_FRAMEWORK),y) 748ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 749endif 750ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb 751ifneq ($(CONFIG_SPL_TARGET),) 752ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 753endif 754ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf 755ALL-$(CONFIG_EFI_APP) += u-boot-app.efi 756ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi 757 758ifneq ($(BUILD_ROM),) 759ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom 760endif 761 762# enable combined SPL/u-boot/dtb rules for tegra 763ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy) 764ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin 765ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin 766endif 767 768# Add optional build target if defined in board/cpu/soc headers 769ifneq ($(CONFIG_BUILD_TARGET),) 770ALL-y += $(CONFIG_BUILD_TARGET:"%"=%) 771endif 772 773LDFLAGS_u-boot += $(LDFLAGS_FINAL) 774ifneq ($(CONFIG_SYS_TEXT_BASE),) 775LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 776endif 777 778# Normally we fill empty space with 0xff 779quiet_cmd_objcopy = OBJCOPY $@ 780cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \ 781 $(OBJCOPYFLAGS_$(@F)) $< $@ 782 783# Provide a version which does not do this, for use by EFI 784quiet_cmd_zobjcopy = OBJCOPY $@ 785cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 786 787quiet_cmd_efipayload = OBJCOPY $@ 788cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@ 789 790quiet_cmd_mkimage = MKIMAGE $@ 791cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 792 $(if $(KBUILD_VERBOSE:1=), >/dev/null) 793 794quiet_cmd_cat = CAT $@ 795cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 796 797append = cat $(filter-out $< $(PHONY), $^) >> $@ 798 799quiet_cmd_pad_cat = CAT $@ 800cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@ 801 802all: $(ALL-y) 803ifneq ($(CONFIG_SYS_GENERIC_BOARD),y) 804 @echo "===================== WARNING ======================" 805 @echo "Please convert this board to generic board." 806 @echo "Otherwise it will be removed by the end of 2014." 807 @echo "See doc/README.generic-board for further information" 808 @echo "====================================================" 809endif 810ifeq ($(CONFIG_DM_I2C_COMPAT),y) 811 @echo "===================== WARNING ======================" 812 @echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove" 813 @echo "(possibly in a subsequent patch in your series)" 814 @echo "before sending patches to the mailing list." 815 @echo "====================================================" 816endif 817 818PHONY += dtbs 819dtbs dts/dt.dtb: checkdtc u-boot 820 $(Q)$(MAKE) $(build)=dts dtbs 821 822quiet_cmd_copy = COPY $@ 823 cmd_copy = cp $< $@ 824 825ifeq ($(CONFIG_OF_SEPARATE),y) 826u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE 827 $(call if_changed,cat) 828 829u-boot.bin: u-boot-dtb.bin FORCE 830 $(call if_changed,copy) 831else 832u-boot.bin: u-boot-nodtb.bin FORCE 833 $(call if_changed,copy) 834endif 835 836%.imx: %.bin 837 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 838 839u-boot.dtb: dts/dt.dtb 840 $(call cmd,copy) 841 842OBJCOPYFLAGS_u-boot.hex := -O ihex 843 844OBJCOPYFLAGS_u-boot.srec := -O srec 845 846u-boot.hex u-boot.srec: u-boot FORCE 847 $(call if_changed,objcopy) 848 849OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \ 850 $(if $(CONFIG_X86_RESET_VECTOR),-R .start16 -R .resetvec) 851 852binary_size_check: u-boot-nodtb.bin FORCE 853 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \ 854 map_size=$(shell cat u-boot.map | \ 855 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \ 856 | sed 's/0X//g' \ 857 | bc); \ 858 if [ "" != "$$map_size" ]; then \ 859 if test $$map_size -ne $$file_size; then \ 860 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ 861 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \ 862 exit 1; \ 863 fi \ 864 fi 865 866u-boot-nodtb.bin: u-boot FORCE 867 $(call if_changed,objcopy) 868 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE)) 869 $(BOARD_SIZE_CHECK) 870 871u-boot.ldr: u-boot 872 $(CREATE_LDR_ENV) 873 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS) 874 $(BOARD_SIZE_CHECK) 875 876OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 877 878OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 879 880u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 881 $(call if_changed,objcopy) 882 883# 884# U-Boot entry point, needed for booting of full-blown U-Boot 885# from the SPL U-Boot version. 886# 887ifndef CONFIG_SYS_UBOOT_START 888CONFIG_SYS_UBOOT_START := 0 889endif 890 891# Create a file containing the configuration options the image was built with 892quiet_cmd_cpp_cfg = CFG $@ 893cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 894 -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $< 895 896ifdef CONFIG_SPL_LOAD_FIT 897MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 898 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 899 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \ 900 -b $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) 901else 902MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 903 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 904 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 905endif 906 907MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 908 909MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 910 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 911 912MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 913 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 914 915MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 916 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 917 918u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl: \ 919 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE 920 $(call if_changed,mkimage) 921 922u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE 923 $(call if_changed,mkimage) 924 925u-boot.sha1: u-boot.bin 926 tools/ubsha1 u-boot.bin 927 928u-boot.dis: u-boot 929 $(OBJDUMP) -d $< > $@ 930 931u-boot.cfg: include/config.h FORCE 932 $(call if_changed,cpp_cfg) 933 934ifdef CONFIG_TPL 935SPL_PAYLOAD := tpl/u-boot-with-tpl.bin 936else 937SPL_PAYLOAD := u-boot.bin 938endif 939 940OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 941 --pad-to=$(CONFIG_SPL_PAD_TO) 942u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE 943 $(call if_changed,pad_cat) 944 945MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE) 946 947lpc32xx-spl.img: spl/u-boot-spl.bin FORCE 948 $(call if_changed,mkimage) 949 950OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 951 952lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE 953 $(call if_changed,objcopy) 954 955OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 956 957lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE 958 $(call if_changed,objcopy) 959 960lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE 961 $(call if_changed,cat) 962 963CLEAN_FILES += lpc32xx-* 964 965OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 966 --pad-to=$(CONFIG_TPL_PAD_TO) 967tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 968 $(call if_changed,pad_cat) 969 970SPL: spl/u-boot-spl.bin FORCE 971 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 972 973u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE 974 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 975 976MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE) 977 978u-boot.ubl: u-boot-with-spl.bin FORCE 979 $(call if_changed,mkimage) 980 981MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \ 982 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ 983 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 984spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 985 $(call if_changed,mkimage) 986 987OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 988u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 989 $(call if_changed,pad_cat) 990 991u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 992 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 993u-boot.sb: u-boot.bin spl/u-boot-spl.bin 994 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 995 996# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL. 997# Both images are created using mkimage (crc etc), so that the ROM 998# bootloader can check its integrity. Padding needs to be done to the 999# SPL image (with mkimage header) and not the binary. Otherwise the resulting image 1000# which is loaded/copied by the ROM bootloader to SRAM doesn't fit. 1001# The resulting image containing both U-Boot images is called u-boot.spr 1002MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 1003 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 1004spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 1005 $(call if_changed,mkimage) 1006 1007OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1008 --gap-fill=0xff 1009u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE 1010 $(call if_changed,pad_cat) 1011 1012ifneq ($(CONFIG_ARCH_SOCFPGA),) 1013quiet_cmd_socboot = SOCBOOT $@ 1014cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1015 spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1016 u-boot.img > $@ || rm -f $@ 1017u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE 1018 $(call if_changed,socboot) 1019endif 1020 1021# x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including 1022# reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in 1023# the middle. 1024ifneq ($(CONFIG_X86_RESET_VECTOR),) 1025rom: u-boot.rom FORCE 1026 1027IFDTOOL=$(objtree)/tools/ifdtool 1028IFDTOOL_FLAGS = -f 0:$(objtree)/u-boot.dtb 1029IFDTOOL_FLAGS += -m 0x$(shell $(NM) u-boot |grep _dt_ucode_base_size |cut -d' ' -f1) 1030IFDTOOL_FLAGS += -U $(CONFIG_SYS_TEXT_BASE):$(objtree)/u-boot-nodtb.bin 1031IFDTOOL_FLAGS += -w $(CONFIG_SYS_X86_START16):$(objtree)/u-boot-x86-16bit.bin 1032IFDTOOL_FLAGS += -C 1033 1034ifneq ($(CONFIG_HAVE_INTEL_ME),) 1035IFDTOOL_ME_FLAGS = -D $(srctree)/board/$(BOARDDIR)/descriptor.bin 1036IFDTOOL_ME_FLAGS += -i ME:$(srctree)/board/$(BOARDDIR)/me.bin 1037endif 1038 1039ifneq ($(CONFIG_HAVE_MRC),) 1040IFDTOOL_FLAGS += -w $(CONFIG_X86_MRC_ADDR):$(srctree)/board/$(BOARDDIR)/mrc.bin 1041endif 1042 1043ifneq ($(CONFIG_HAVE_FSP),) 1044IFDTOOL_FLAGS += -w $(CONFIG_FSP_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_FSP_FILE) 1045endif 1046 1047ifneq ($(CONFIG_HAVE_CMC),) 1048IFDTOOL_FLAGS += -w $(CONFIG_CMC_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_CMC_FILE) 1049endif 1050 1051ifneq ($(CONFIG_HAVE_VGA_BIOS),) 1052IFDTOOL_FLAGS += -w $(CONFIG_VGA_BIOS_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_VGA_BIOS_FILE) 1053endif 1054 1055ifneq ($(CONFIG_HAVE_REFCODE),) 1056IFDTOOL_FLAGS += -w $(CONFIG_X86_REFCODE_ADDR):refcode.bin 1057endif 1058 1059quiet_cmd_ifdtool = IFDTOOL $@ 1060cmd_ifdtool = $(IFDTOOL) -c -r $(CONFIG_ROM_SIZE) u-boot.tmp; 1061ifneq ($(CONFIG_HAVE_INTEL_ME),) 1062cmd_ifdtool += $(IFDTOOL) $(IFDTOOL_ME_FLAGS) u-boot.tmp; 1063endif 1064cmd_ifdtool += $(IFDTOOL) $(IFDTOOL_FLAGS) u-boot.tmp; 1065cmd_ifdtool += mv u-boot.tmp $@ 1066 1067refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE 1068 $(call if_changed,copy) 1069 1070quiet_cmd_ldr = LD $@ 1071cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \ 1072 $(filter-out FORCE,$^) -o $@ 1073 1074u-boot.rom: u-boot-x86-16bit.bin u-boot.bin FORCE \ 1075 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) 1076 $(call if_changed,ifdtool) 1077 1078OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec 1079u-boot-x86-16bit.bin: u-boot FORCE 1080 $(call if_changed,objcopy) 1081endif 1082 1083ifneq ($(CONFIG_SUNXI),) 1084OBJCOPYFLAGS_u-boot-sunxi-with-spl.bin = -I binary -O binary \ 1085 --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff 1086u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img FORCE 1087 $(call if_changed,pad_cat) 1088endif 1089 1090ifneq ($(CONFIG_TEGRA),) 1091OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 1092u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE 1093 $(call if_changed,pad_cat) 1094 1095OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 1096u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE 1097 $(call if_changed,pad_cat) 1098 1099u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE 1100 $(call if_changed,copy) 1101endif 1102 1103OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI) 1104u-boot-app.efi: u-boot FORCE 1105 $(call if_changed,zobjcopy) 1106 1107u-boot.bin.o: u-boot.bin FORCE 1108 $(call if_changed,efipayload) 1109 1110u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE 1111 $(call if_changed_dep,cpp_lds) 1112 1113# Rule to link the EFI payload which contains a stub and a U-Boot binary 1114quiet_cmd_u-boot_payload ?= LD $@ 1115 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \ 1116 -T u-boot-payload.lds arch/x86/cpu/call32.o \ 1117 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \ 1118 $(addprefix arch/$(ARCH)/lib/efi/,$(EFISTUB)) 1119 1120u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE 1121 $(call if_changed,u-boot_payload) 1122 1123OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI) 1124u-boot-payload.efi: u-boot-payload FORCE 1125 $(call if_changed,zobjcopy) 1126 1127u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 1128 $(call if_changed,cat) 1129 1130#Add a target to create boot binary having SPL binary in PBI format 1131#concatenated with u-boot binary. It is need by PowerPC SoC having 1132#internal SRAM <= 512KB. 1133MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1134 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \ 1135 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE) 1136 1137spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 1138 $(call if_changed,mkimage) 1139 1140ifeq ($(ARCH),arm) 1141UBOOT_BINLOAD := u-boot.img 1142else 1143UBOOT_BINLOAD := u-boot.bin 1144endif 1145 1146OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1147 --gap-fill=0xff 1148 1149u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE 1150 $(call if_changed,pad_cat) 1151 1152# PPC4xx needs the SPL at the end of the image, since the reset vector 1153# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target 1154# and need to introduce a new build target with the full blown U-Boot 1155# at the start padded up to the start of the SPL image. And then concat 1156# the SPL image to the end. 1157 1158OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ 1159 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff 1160u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE 1161 $(call if_changed,pad_cat) 1162 1163# Create a new ELF from a raw binary file. This is useful for arm64 1164# where static relocation needs to be performed on the raw binary, 1165# but certain simulators only accept an ELF file (but don't do the 1166# relocation). 1167# FIXME refactor dts/Makefile to share target/arch detection 1168u-boot.elf: u-boot.bin 1169 @$(OBJCOPY) -B aarch64 -I binary -O elf64-littleaarch64 \ 1170 $< u-boot-elf.o 1171 @$(LD) u-boot-elf.o -o $@ \ 1172 --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \ 1173 -Ttext=$(CONFIG_SYS_TEXT_BASE) 1174 1175# Rule to link u-boot 1176# May be overridden by arch/$(ARCH)/config.mk 1177quiet_cmd_u-boot__ ?= LD $@ 1178 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1179 -T u-boot.lds $(u-boot-init) \ 1180 --start-group $(u-boot-main) --end-group \ 1181 $(PLATFORM_LIBS) -Map u-boot.map 1182 1183quiet_cmd_smap = GEN common/system_map.o 1184cmd_smap = \ 1185 smap=`$(call SYSTEM_MAP,u-boot) | \ 1186 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1187 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1188 -c $(srctree)/common/system_map.c -o common/system_map.o 1189 1190u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE 1191 $(call if_changed,u-boot__) 1192ifeq ($(CONFIG_KALLSYMS),y) 1193 $(call cmd,smap) 1194 $(call cmd,u-boot__) common/system_map.o 1195endif 1196 1197quiet_cmd_sym ?= SYM $@ 1198 cmd_sym ?= $(OBJDUMP) -t $< > $@ 1199u-boot.sym: u-boot FORCE 1200 $(call if_changed,sym) 1201 1202# The actual objects are generated when descending, 1203# make sure no implicit rule kicks in 1204$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1205 1206# Handle descending into subdirectories listed in $(vmlinux-dirs) 1207# Preset locale variables to speed up the build process. Limit locale 1208# tweaks to this spot to avoid wrong language settings when running 1209# make menuconfig etc. 1210# Error messages still appears in the original language 1211 1212PHONY += $(u-boot-dirs) 1213$(u-boot-dirs): prepare scripts 1214 $(Q)$(MAKE) $(build)=$@ 1215 1216tools: prepare 1217# The "tools" are needed early 1218$(filter-out tools, $(u-boot-dirs)): tools 1219# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1220# is "yes"), so compile examples after U-Boot is compiled. 1221examples: $(filter-out examples, $(u-boot-dirs)) 1222 1223define filechk_uboot.release 1224 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1225endef 1226 1227# Store (new) UBOOTRELEASE string in include/config/uboot.release 1228include/config/uboot.release: include/config/auto.conf FORCE 1229 $(call filechk,uboot.release) 1230 1231 1232# Things we need to do before we recursively start building the kernel 1233# or the modules are listed in "prepare". 1234# A multi level approach is used. prepareN is processed before prepareN-1. 1235# archprepare is used in arch Makefiles and when processed asm symlink, 1236# version.h and scripts_basic is processed / created. 1237 1238# Listed in dependency order 1239PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1240 1241# prepare3 is used to check if we are building in a separate output directory, 1242# and if so do: 1243# 1) Check that make has not been executed in the kernel src $(srctree) 1244prepare3: include/config/uboot.release 1245ifneq ($(KBUILD_SRC),) 1246 @$(kecho) ' Using $(srctree) as source for U-Boot' 1247 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 1248 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1249 echo >&2 " in the '$(srctree)' directory.";\ 1250 /bin/false; \ 1251 fi; 1252endif 1253 1254# prepare2 creates a makefile if using a separate output directory 1255prepare2: prepare3 outputmakefile 1256 1257prepare1: prepare2 $(version_h) $(timestamp_h) \ 1258 include/config/auto.conf 1259ifeq ($(CONFIG_HAVE_GENERIC_BOARD),) 1260ifeq ($(CONFIG_SYS_GENERIC_BOARD),y) 1261 @echo >&2 " Your architecture does not support generic board." 1262 @echo >&2 " Please undefine CONFIG_SYS_GENERIC_BOARD in your board config file." 1263 @/bin/false 1264endif 1265endif 1266ifeq ($(wildcard $(LDSCRIPT)),) 1267 @echo >&2 " Could not find linker script." 1268 @/bin/false 1269endif 1270 1271archprepare: prepare1 scripts_basic 1272 1273prepare0: archprepare FORCE 1274 $(Q)$(MAKE) $(build)=. 1275 1276# All the preparing.. 1277prepare: prepare0 1278 1279# Generate some files 1280# --------------------------------------------------------------------------- 1281 1282define filechk_version.h 1283 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1284 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1285 echo \#define CC_VERSION_STRING \"$$($(CC) --version | head -n 1)\"; \ 1286 echo \#define LD_VERSION_STRING \"$$($(LD) --version | head -n 1)\"; ) 1287endef 1288 1289# The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date. 1290# The BSD date on the other hand behaves different and would produce errors 1291# with the misused '-d' switch. Respect that and search a working date with 1292# well known pre- and suffixes for the GNU variant of date. 1293define filechk_timestamp.h 1294 (if test -n "$${SOURCE_DATE_EPOCH}"; then \ 1295 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \ 1296 DATE=""; \ 1297 for date in gdate date.gnu date; do \ 1298 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \ 1299 done; \ 1300 if test -n "$${DATE}"; then \ 1301 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1302 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \ 1303 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \ 1304 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1305 else \ 1306 return 42; \ 1307 fi; \ 1308 else \ 1309 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1310 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \ 1311 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \ 1312 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1313 fi) 1314endef 1315 1316$(version_h): include/config/uboot.release FORCE 1317 $(call filechk,version.h) 1318 1319$(timestamp_h): $(srctree)/Makefile FORCE 1320 $(call filechk,timestamp.h) 1321 1322# --------------------------------------------------------------------------- 1323quiet_cmd_cpp_lds = LDS $@ 1324cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 1325 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 1326 1327u-boot.lds: $(LDSCRIPT) prepare FORCE 1328 $(call if_changed_dep,cpp_lds) 1329 1330spl/u-boot-spl.bin: spl/u-boot-spl 1331 @: 1332spl/u-boot-spl: tools prepare $(if $(CONFIG_OF_SEPARATE),dts/dt.dtb) 1333 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all 1334 1335spl/sunxi-spl.bin: spl/u-boot-spl 1336 @: 1337 1338spl/u-boot-spl.sfp: spl/u-boot-spl 1339 @: 1340 1341spl/boot.bin: spl/u-boot-spl 1342 @: 1343 1344tpl/u-boot-tpl.bin: tools prepare 1345 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all 1346 1347TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) 1348 1349FIND := find 1350FINDFLAGS := -L 1351 1352tags ctags: 1353 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1354 -name '*.[chS]' -print` 1355 ln -s ctags tags 1356 1357etags: 1358 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1359 -name '*.[chS]' -print` 1360cscope: 1361 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 1362 cscope.files 1363 cscope -b -q -k 1364 1365SYSTEM_MAP = \ 1366 $(NM) $1 | \ 1367 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 1368 LC_ALL=C sort 1369System.map: u-boot 1370 @$(call SYSTEM_MAP,$<) > $@ 1371 1372checkdtc: 1373 @if test $(call dtc-version) -lt 0104; then \ 1374 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \ 1375 false; \ 1376 fi 1377 1378######################################################################### 1379 1380# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 1381# R_AARCH64_RELATIVE (64-bit). 1382checkarmreloc: u-boot 1383 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 1384 grep R_A | sort -u`"; \ 1385 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 1386 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 1387 echo "$< contains unexpected relocations: $$RELOC"; \ 1388 false; \ 1389 fi 1390 1391env: scripts_basic 1392 $(Q)$(MAKE) $(build)=tools/$@ 1393 1394tools-only: scripts_basic $(version_h) $(timestamp_h) 1395 $(Q)$(MAKE) $(build)=tools 1396 1397tools-all: export HOST_TOOLS_ALL=y 1398tools-all: env tools ; 1399 1400cross_tools: export CROSS_BUILD_TOOLS=y 1401cross_tools: tools ; 1402 1403.PHONY : CHANGELOG 1404CHANGELOG: 1405 git log --no-merges U-Boot-1_1_5.. | \ 1406 unexpand -a | sed -e 's/\s\s*$$//' > $@ 1407 1408include/license.h: tools/bin2header COPYING 1409 cat COPYING | gzip -9 -c | ./tools/bin2header license_gzip > include/license.h 1410######################################################################### 1411 1412### 1413# Cleaning is done on three levels. 1414# make clean Delete most generated files 1415# Leave enough to build external modules 1416# make mrproper Delete the current configuration, and all generated files 1417# make distclean Remove editor backup files, patch leftover files and the like 1418 1419# Directories & files removed with 'make clean' 1420CLEAN_DIRS += $(MODVERDIR) \ 1421 $(foreach d, spl tpl, $(patsubst %,$d/%, \ 1422 $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) 1423 1424CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \ 1425 boot* u-boot* MLO* SPL System.map 1426 1427# Directories & files removed with 'make mrproper' 1428MRPROPER_DIRS += include/config include/generated spl tpl \ 1429 .tmp_objdiff 1430MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ 1431 ctags etags TAGS cscope* GPATH GTAGS GRTAGS GSYMS 1432 1433# clean - Delete most, but leave enough to build external modules 1434# 1435clean: rm-dirs := $(CLEAN_DIRS) 1436clean: rm-files := $(CLEAN_FILES) 1437 1438clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 1439 1440clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook) 1441 1442PHONY += $(clean-dirs) clean archclean 1443$(clean-dirs): 1444 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1445 1446# TODO: Do not use *.cfgtmp 1447clean: $(clean-dirs) 1448 $(call cmd,rmdirs) 1449 $(call cmd,rmfiles) 1450 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1451 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 1452 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \ 1453 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 1454 -o -name '*.symtypes' -o -name 'modules.order' \ 1455 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 1456 -o -name '*.gcno' \) -type f -print | xargs rm -f 1457 1458# mrproper - Delete all generated files, including .config 1459# 1460mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 1461mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 1462mrproper-dirs := $(addprefix _mrproper_,scripts) 1463 1464PHONY += $(mrproper-dirs) mrproper archmrproper 1465$(mrproper-dirs): 1466 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 1467 1468mrproper: clean $(mrproper-dirs) 1469 $(call cmd,rmdirs) 1470 $(call cmd,rmfiles) 1471 @rm -f arch/*/include/asm/arch 1472 1473# distclean 1474# 1475PHONY += distclean 1476 1477distclean: mrproper 1478 @find $(srctree) $(RCS_FIND_IGNORE) \ 1479 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 1480 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 1481 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 1482 -o -name '*.pyc' \) \ 1483 -type f -print | xargs rm -f 1484 @rm -f boards.cfg 1485 1486backup: 1487 F=`basename $(srctree)` ; cd .. ; \ 1488 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 1489 1490help: 1491 @echo 'Cleaning targets:' 1492 @echo ' clean - Remove most generated files but keep the config' 1493 @echo ' mrproper - Remove all generated files + config + various backup files' 1494 @echo ' distclean - mrproper + remove editor backup and patch files' 1495 @echo '' 1496 @echo 'Configuration targets:' 1497 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 1498 @echo '' 1499 @echo 'Other generic targets:' 1500 @echo ' all - Build all necessary images depending on configuration' 1501 @echo '* u-boot - Build the bare u-boot' 1502 @echo ' dir/ - Build all files in dir and below' 1503 @echo ' dir/file.[oisS] - Build specified target only' 1504 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 1505 @echo ' (requires a recent binutils and recent build (System.map))' 1506 @echo ' tags/ctags - Generate ctags file for editors' 1507 @echo ' etags - Generate etags file for editors' 1508 @echo ' cscope - Generate cscope index' 1509 @echo ' ubootrelease - Output the release version string (use with make -s)' 1510 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)' 1511 @echo '' 1512 @echo 'Static analysers' 1513 @echo ' checkstack - Generate a list of stack hogs' 1514 @echo '' 1515 @echo 'Documentation targets:' 1516 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp 1517 @echo '' 1518 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 1519 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 1520 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 1521 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 1522 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 1523 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 1524 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 1525 @echo ' 1: warnings which may be relevant and do not occur too often' 1526 @echo ' 2: warnings which occur quite often but may still be relevant' 1527 @echo ' 3: more obscure warnings, can most likely be ignored' 1528 @echo ' Multiple levels can be combined with W=12 or W=123' 1529 @echo '' 1530 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 1531 @echo 'For further info see the ./README file' 1532 1533 1534# Documentation targets 1535# --------------------------------------------------------------------------- 1536%docs: scripts_basic FORCE 1537 $(Q)$(MAKE) $(build)=scripts build_docproc 1538 $(Q)$(MAKE) $(build)=doc/DocBook $@ 1539 1540# Dummies... 1541PHONY += prepare scripts 1542prepare: ; 1543scripts: ; 1544 1545endif #ifeq ($(config-targets),1) 1546endif #ifeq ($(mixed-targets),1) 1547 1548PHONY += checkstack ubootrelease ubootversion 1549 1550checkstack: 1551 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 1552 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 1553 1554ubootrelease: 1555 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1556 1557ubootversion: 1558 @echo $(UBOOTVERSION) 1559 1560# Single targets 1561# --------------------------------------------------------------------------- 1562# Single targets are compatible with: 1563# - build with mixed source and output 1564# - build with separate output dir 'make O=...' 1565# - external modules 1566# 1567# target-dir => where to store outputfile 1568# build-dir => directory in kernel source tree to use 1569 1570ifeq ($(KBUILD_EXTMOD),) 1571 build-dir = $(patsubst %/,%,$(dir $@)) 1572 target-dir = $(dir $@) 1573else 1574 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 1575 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 1576 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 1577endif 1578 1579%.s: %.c prepare scripts FORCE 1580 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1581%.i: %.c prepare scripts FORCE 1582 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1583%.o: %.c prepare scripts FORCE 1584 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1585%.lst: %.c prepare scripts FORCE 1586 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1587%.s: %.S prepare scripts FORCE 1588 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1589%.o: %.S prepare scripts FORCE 1590 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1591%.symtypes: %.c prepare scripts FORCE 1592 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1593 1594# Modules 1595/: prepare scripts FORCE 1596 $(cmd_crmodverdir) 1597 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1598 $(build)=$(build-dir) 1599%/: prepare scripts FORCE 1600 $(cmd_crmodverdir) 1601 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1602 $(build)=$(build-dir) 1603%.ko: prepare scripts FORCE 1604 $(cmd_crmodverdir) 1605 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1606 $(build)=$(build-dir) $(@:.ko=.o) 1607 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1608 1609# FIXME Should go into a make.lib or something 1610# =========================================================================== 1611 1612quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 1613 cmd_rmdirs = rm -rf $(rm-dirs) 1614 1615quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 1616 cmd_rmfiles = rm -f $(rm-files) 1617 1618# read all saved command lines 1619 1620targets := $(wildcard $(sort $(targets))) 1621cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 1622 1623ifneq ($(cmd_files),) 1624 $(cmd_files): ; # Do not try to update included dependency files 1625 include $(cmd_files) 1626endif 1627 1628endif # skip-makefile 1629 1630PHONY += FORCE 1631FORCE: 1632 1633# Declare the contents of the .PHONY variable as phony. We keep that 1634# information in a variable so we can use it in if_changed and friends. 1635.PHONY: $(PHONY) 1636