1# 2# SPDX-License-Identifier: GPL-2.0+ 3# 4 5VERSION = 2016 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 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/common/ 652libs-y += drivers/usb/emul/ 653libs-y += drivers/usb/eth/ 654libs-y += drivers/usb/gadget/ 655libs-y += drivers/usb/gadget/udc/ 656libs-y += drivers/usb/host/ 657libs-y += drivers/usb/musb/ 658libs-y += drivers/usb/musb-new/ 659libs-y += drivers/usb/phy/ 660libs-y += drivers/usb/ulpi/ 661libs-y += cmd/ 662libs-y += common/ 663libs-$(CONFIG_API) += api/ 664libs-$(CONFIG_HAS_POST) += post/ 665libs-y += test/ 666libs-y += test/dm/ 667libs-$(CONFIG_UT_ENV) += test/env/ 668 669libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 670 671libs-y := $(sort $(libs-y)) 672 673u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 674 675u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 676 677libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 678 679u-boot-init := $(head-y) 680u-boot-main := $(libs-y) 681 682 683# Add GCC lib 684ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 685PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 686else 687PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 688endif 689PLATFORM_LIBS += $(PLATFORM_LIBGCC) 690export PLATFORM_LIBS 691export PLATFORM_LIBGCC 692 693# Special flags for CPP when processing the linker script. 694# Pass the version down so we can handle backwards compatibility 695# on the fly. 696LDPPFLAGS += \ 697 -include $(srctree)/include/u-boot/u-boot.lds.h \ 698 -DCPUDIR=$(CPUDIR) \ 699 $(shell $(LD) --version | \ 700 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 701 702######################################################################### 703######################################################################### 704 705ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 706BOARD_SIZE_CHECK = \ 707 @actual=`wc -c $@ | awk '{print $$1}'`; \ 708 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \ 709 if test $$actual -gt $$limit; then \ 710 echo "$@ exceeds file size limit:" >&2 ; \ 711 echo " limit: $$limit bytes" >&2 ; \ 712 echo " actual: $$actual bytes" >&2 ; \ 713 echo " excess: $$((actual - limit)) bytes" >&2; \ 714 exit 1; \ 715 fi 716else 717BOARD_SIZE_CHECK = 718endif 719 720# Statically apply RELA-style relocations (currently arm64 only) 721ifneq ($(CONFIG_STATIC_RELA),) 722# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base 723DO_STATIC_RELA = \ 724 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \ 725 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \ 726 tools/relocate-rela $(2) $(3) $$start $$end 727else 728DO_STATIC_RELA = 729endif 730 731# Always append ALL so that arch config.mk's can add custom ones 732ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map u-boot.cfg binary_size_check 733 734ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin 735ifeq ($(CONFIG_SPL_FSL_PBL),y) 736ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 737else 738ifneq ($(CONFIG_SECURE_BOOT), y) 739# For Secure Boot The Image needs to be signed and Header must also 740# be included. So The image has to be built explicitly 741ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 742endif 743endif 744ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin 745ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 746ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 747ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb 748ifeq ($(CONFIG_SPL_FRAMEWORK),y) 749ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 750endif 751ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb 752ifneq ($(CONFIG_SPL_TARGET),) 753ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 754endif 755ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf 756ALL-$(CONFIG_EFI_APP) += u-boot-app.efi 757ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi 758 759ifneq ($(BUILD_ROM),) 760ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom 761endif 762 763# enable combined SPL/u-boot/dtb rules for tegra 764ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy) 765ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin 766ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin 767endif 768 769# Add optional build target if defined in board/cpu/soc headers 770ifneq ($(CONFIG_BUILD_TARGET),) 771ALL-y += $(CONFIG_BUILD_TARGET:"%"=%) 772endif 773 774LDFLAGS_u-boot += $(LDFLAGS_FINAL) 775ifneq ($(CONFIG_SYS_TEXT_BASE),) 776LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 777endif 778 779# Normally we fill empty space with 0xff 780quiet_cmd_objcopy = OBJCOPY $@ 781cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \ 782 $(OBJCOPYFLAGS_$(@F)) $< $@ 783 784# Provide a version which does not do this, for use by EFI 785quiet_cmd_zobjcopy = OBJCOPY $@ 786cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 787 788quiet_cmd_efipayload = OBJCOPY $@ 789cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@ 790 791quiet_cmd_mkimage = MKIMAGE $@ 792cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 793 $(if $(KBUILD_VERBOSE:1=), >/dev/null) 794 795quiet_cmd_cat = CAT $@ 796cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 797 798append = cat $(filter-out $< $(PHONY), $^) >> $@ 799 800quiet_cmd_pad_cat = CAT $@ 801cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@ 802 803all: $(ALL-y) 804ifneq ($(CONFIG_SYS_GENERIC_BOARD),y) 805 @echo "===================== WARNING ======================" 806 @echo "Please convert this board to generic board." 807 @echo "Otherwise it will be removed by the end of 2014." 808 @echo "See doc/README.generic-board for further information" 809 @echo "====================================================" 810endif 811ifeq ($(CONFIG_DM_I2C_COMPAT),y) 812 @echo "===================== WARNING ======================" 813 @echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove" 814 @echo "(possibly in a subsequent patch in your series)" 815 @echo "before sending patches to the mailing list." 816 @echo "====================================================" 817endif 818 819PHONY += dtbs 820dtbs dts/dt.dtb: checkdtc u-boot 821 $(Q)$(MAKE) $(build)=dts dtbs 822 823quiet_cmd_copy = COPY $@ 824 cmd_copy = cp $< $@ 825 826ifeq ($(CONFIG_OF_SEPARATE),y) 827u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE 828 $(call if_changed,cat) 829 830u-boot.bin: u-boot-dtb.bin FORCE 831 $(call if_changed,copy) 832else 833u-boot.bin: u-boot-nodtb.bin FORCE 834 $(call if_changed,copy) 835endif 836 837%.imx: %.bin 838 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 839 840u-boot.dtb: dts/dt.dtb 841 $(call cmd,copy) 842 843OBJCOPYFLAGS_u-boot.hex := -O ihex 844 845OBJCOPYFLAGS_u-boot.srec := -O srec 846 847u-boot.hex u-boot.srec: u-boot FORCE 848 $(call if_changed,objcopy) 849 850OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \ 851 $(if $(CONFIG_X86_RESET_VECTOR),-R .start16 -R .resetvec) 852 853binary_size_check: u-boot-nodtb.bin FORCE 854 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \ 855 map_size=$(shell cat u-boot.map | \ 856 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \ 857 | sed 's/0X//g' \ 858 | bc); \ 859 if [ "" != "$$map_size" ]; then \ 860 if test $$map_size -ne $$file_size; then \ 861 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ 862 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \ 863 exit 1; \ 864 fi \ 865 fi 866 867u-boot-nodtb.bin: u-boot FORCE 868 $(call if_changed,objcopy) 869 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE)) 870 $(BOARD_SIZE_CHECK) 871 872u-boot.ldr: u-boot 873 $(CREATE_LDR_ENV) 874 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS) 875 $(BOARD_SIZE_CHECK) 876 877OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 878 879OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 880 881u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 882 $(call if_changed,objcopy) 883 884# 885# U-Boot entry point, needed for booting of full-blown U-Boot 886# from the SPL U-Boot version. 887# 888ifndef CONFIG_SYS_UBOOT_START 889CONFIG_SYS_UBOOT_START := 0 890endif 891 892# Create a file containing the configuration options the image was built with 893quiet_cmd_cpp_cfg = CFG $@ 894cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 895 -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $< 896 897ifdef CONFIG_SPL_LOAD_FIT 898MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 899 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 900 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \ 901 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) 902else 903MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 904 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 905 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 906endif 907 908MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 909 910MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 911 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 912 913MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 914 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 915 916MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 917 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 918 919u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl: \ 920 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE 921 $(call if_changed,mkimage) 922 923u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE 924 $(call if_changed,mkimage) 925 926u-boot.sha1: u-boot.bin 927 tools/ubsha1 u-boot.bin 928 929u-boot.dis: u-boot 930 $(OBJDUMP) -d $< > $@ 931 932u-boot.cfg: include/config.h FORCE 933 $(call if_changed,cpp_cfg) 934 935ifdef CONFIG_TPL 936SPL_PAYLOAD := tpl/u-boot-with-tpl.bin 937else 938SPL_PAYLOAD := u-boot.bin 939endif 940 941OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 942 --pad-to=$(CONFIG_SPL_PAD_TO) 943u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE 944 $(call if_changed,pad_cat) 945 946MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE) 947 948lpc32xx-spl.img: spl/u-boot-spl.bin FORCE 949 $(call if_changed,mkimage) 950 951OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 952 953lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE 954 $(call if_changed,objcopy) 955 956OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 957 958lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE 959 $(call if_changed,objcopy) 960 961lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE 962 $(call if_changed,cat) 963 964CLEAN_FILES += lpc32xx-* 965 966OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 967 --pad-to=$(CONFIG_TPL_PAD_TO) 968tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 969 $(call if_changed,pad_cat) 970 971SPL: spl/u-boot-spl.bin FORCE 972 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 973 974u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE 975 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 976 977MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE) 978 979u-boot.ubl: u-boot-with-spl.bin FORCE 980 $(call if_changed,mkimage) 981 982MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \ 983 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ 984 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 985spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 986 $(call if_changed,mkimage) 987 988OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 989u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 990 $(call if_changed,pad_cat) 991 992u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 993 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 994u-boot.sb: u-boot.bin spl/u-boot-spl.bin 995 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 996 997# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL. 998# Both images are created using mkimage (crc etc), so that the ROM 999# bootloader can check its integrity. Padding needs to be done to the 1000# SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1001# which is loaded/copied by the ROM bootloader to SRAM doesn't fit. 1002# The resulting image containing both U-Boot images is called u-boot.spr 1003MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 1004 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 1005spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 1006 $(call if_changed,mkimage) 1007 1008OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1009 --gap-fill=0xff 1010u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE 1011 $(call if_changed,pad_cat) 1012 1013ifneq ($(CONFIG_ARCH_SOCFPGA),) 1014quiet_cmd_socboot = SOCBOOT $@ 1015cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1016 spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1017 u-boot.img > $@ || rm -f $@ 1018u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE 1019 $(call if_changed,socboot) 1020endif 1021 1022# x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including 1023# reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in 1024# the middle. 1025ifneq ($(CONFIG_X86_RESET_VECTOR),) 1026rom: u-boot.rom FORCE 1027 1028IFDTOOL=$(objtree)/tools/ifdtool 1029IFDTOOL_FLAGS = -f 0:$(objtree)/u-boot.dtb 1030IFDTOOL_FLAGS += -m 0x$(shell $(NM) u-boot |grep _dt_ucode_base_size |cut -d' ' -f1) 1031IFDTOOL_FLAGS += -U $(CONFIG_SYS_TEXT_BASE):$(objtree)/u-boot-nodtb.bin 1032IFDTOOL_FLAGS += -w $(CONFIG_SYS_X86_START16):$(objtree)/u-boot-x86-16bit.bin 1033IFDTOOL_FLAGS += -C 1034 1035ifneq ($(CONFIG_HAVE_INTEL_ME),) 1036IFDTOOL_ME_FLAGS = -D $(srctree)/board/$(BOARDDIR)/descriptor.bin 1037IFDTOOL_ME_FLAGS += -i ME:$(srctree)/board/$(BOARDDIR)/me.bin 1038endif 1039 1040ifneq ($(CONFIG_HAVE_MRC),) 1041IFDTOOL_FLAGS += -w $(CONFIG_X86_MRC_ADDR):$(srctree)/board/$(BOARDDIR)/mrc.bin 1042endif 1043 1044ifneq ($(CONFIG_HAVE_FSP),) 1045IFDTOOL_FLAGS += -w $(CONFIG_FSP_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_FSP_FILE) 1046endif 1047 1048ifneq ($(CONFIG_HAVE_CMC),) 1049IFDTOOL_FLAGS += -w $(CONFIG_CMC_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_CMC_FILE) 1050endif 1051 1052ifneq ($(CONFIG_HAVE_VGA_BIOS),) 1053IFDTOOL_FLAGS += -w $(CONFIG_VGA_BIOS_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_VGA_BIOS_FILE) 1054endif 1055 1056ifneq ($(CONFIG_HAVE_REFCODE),) 1057IFDTOOL_FLAGS += -w $(CONFIG_X86_REFCODE_ADDR):refcode.bin 1058endif 1059 1060quiet_cmd_ifdtool = IFDTOOL $@ 1061cmd_ifdtool = $(IFDTOOL) -c -r $(CONFIG_ROM_SIZE) u-boot.tmp; 1062ifneq ($(CONFIG_HAVE_INTEL_ME),) 1063cmd_ifdtool += $(IFDTOOL) $(IFDTOOL_ME_FLAGS) u-boot.tmp; 1064endif 1065cmd_ifdtool += $(IFDTOOL) $(IFDTOOL_FLAGS) u-boot.tmp; 1066cmd_ifdtool += mv u-boot.tmp $@ 1067 1068refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE 1069 $(call if_changed,copy) 1070 1071quiet_cmd_ldr = LD $@ 1072cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \ 1073 $(filter-out FORCE,$^) -o $@ 1074 1075u-boot.rom: u-boot-x86-16bit.bin u-boot.bin FORCE \ 1076 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) 1077 $(call if_changed,ifdtool) 1078 1079OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec 1080u-boot-x86-16bit.bin: u-boot FORCE 1081 $(call if_changed,objcopy) 1082endif 1083 1084ifneq ($(CONFIG_SUNXI),) 1085OBJCOPYFLAGS_u-boot-sunxi-with-spl.bin = -I binary -O binary \ 1086 --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff 1087u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img FORCE 1088 $(call if_changed,pad_cat) 1089endif 1090 1091ifneq ($(CONFIG_TEGRA),) 1092OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 1093u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE 1094 $(call if_changed,pad_cat) 1095 1096OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 1097u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE 1098 $(call if_changed,pad_cat) 1099 1100u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE 1101 $(call if_changed,copy) 1102endif 1103 1104OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI) 1105u-boot-app.efi: u-boot FORCE 1106 $(call if_changed,zobjcopy) 1107 1108u-boot.bin.o: u-boot.bin FORCE 1109 $(call if_changed,efipayload) 1110 1111u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE 1112 $(call if_changed_dep,cpp_lds) 1113 1114# Rule to link the EFI payload which contains a stub and a U-Boot binary 1115quiet_cmd_u-boot_payload ?= LD $@ 1116 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \ 1117 -T u-boot-payload.lds arch/x86/cpu/call32.o \ 1118 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \ 1119 $(addprefix arch/$(ARCH)/lib/efi/,$(EFISTUB)) 1120 1121u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE 1122 $(call if_changed,u-boot_payload) 1123 1124OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI) 1125u-boot-payload.efi: u-boot-payload FORCE 1126 $(call if_changed,zobjcopy) 1127 1128u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 1129 $(call if_changed,cat) 1130 1131#Add a target to create boot binary having SPL binary in PBI format 1132#concatenated with u-boot binary. It is need by PowerPC SoC having 1133#internal SRAM <= 512KB. 1134MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1135 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \ 1136 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE) 1137 1138spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 1139 $(call if_changed,mkimage) 1140 1141ifeq ($(ARCH),arm) 1142UBOOT_BINLOAD := u-boot.img 1143else 1144UBOOT_BINLOAD := u-boot.bin 1145endif 1146 1147OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1148 --gap-fill=0xff 1149 1150u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE 1151 $(call if_changed,pad_cat) 1152 1153# PPC4xx needs the SPL at the end of the image, since the reset vector 1154# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target 1155# and need to introduce a new build target with the full blown U-Boot 1156# at the start padded up to the start of the SPL image. And then concat 1157# the SPL image to the end. 1158 1159OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ 1160 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff 1161u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE 1162 $(call if_changed,pad_cat) 1163 1164# Create a new ELF from a raw binary file. This is useful for arm64 1165# where static relocation needs to be performed on the raw binary, 1166# but certain simulators only accept an ELF file (but don't do the 1167# relocation). 1168# FIXME refactor dts/Makefile to share target/arch detection 1169u-boot.elf: u-boot.bin 1170 @$(OBJCOPY) -B aarch64 -I binary -O elf64-littleaarch64 \ 1171 $< u-boot-elf.o 1172 @$(LD) u-boot-elf.o -o $@ \ 1173 --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \ 1174 -Ttext=$(CONFIG_SYS_TEXT_BASE) 1175 1176# Rule to link u-boot 1177# May be overridden by arch/$(ARCH)/config.mk 1178quiet_cmd_u-boot__ ?= LD $@ 1179 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1180 -T u-boot.lds $(u-boot-init) \ 1181 --start-group $(u-boot-main) --end-group \ 1182 $(PLATFORM_LIBS) -Map u-boot.map 1183 1184quiet_cmd_smap = GEN common/system_map.o 1185cmd_smap = \ 1186 smap=`$(call SYSTEM_MAP,u-boot) | \ 1187 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1188 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1189 -c $(srctree)/common/system_map.c -o common/system_map.o 1190 1191u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE 1192 $(call if_changed,u-boot__) 1193ifeq ($(CONFIG_KALLSYMS),y) 1194 $(call cmd,smap) 1195 $(call cmd,u-boot__) common/system_map.o 1196endif 1197 1198quiet_cmd_sym ?= SYM $@ 1199 cmd_sym ?= $(OBJDUMP) -t $< > $@ 1200u-boot.sym: u-boot FORCE 1201 $(call if_changed,sym) 1202 1203# The actual objects are generated when descending, 1204# make sure no implicit rule kicks in 1205$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1206 1207# Handle descending into subdirectories listed in $(vmlinux-dirs) 1208# Preset locale variables to speed up the build process. Limit locale 1209# tweaks to this spot to avoid wrong language settings when running 1210# make menuconfig etc. 1211# Error messages still appears in the original language 1212 1213PHONY += $(u-boot-dirs) 1214$(u-boot-dirs): prepare scripts 1215 $(Q)$(MAKE) $(build)=$@ 1216 1217tools: prepare 1218# The "tools" are needed early 1219$(filter-out tools, $(u-boot-dirs)): tools 1220# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1221# is "yes"), so compile examples after U-Boot is compiled. 1222examples: $(filter-out examples, $(u-boot-dirs)) 1223 1224define filechk_uboot.release 1225 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1226endef 1227 1228# Store (new) UBOOTRELEASE string in include/config/uboot.release 1229include/config/uboot.release: include/config/auto.conf FORCE 1230 $(call filechk,uboot.release) 1231 1232 1233# Things we need to do before we recursively start building the kernel 1234# or the modules are listed in "prepare". 1235# A multi level approach is used. prepareN is processed before prepareN-1. 1236# archprepare is used in arch Makefiles and when processed asm symlink, 1237# version.h and scripts_basic is processed / created. 1238 1239# Listed in dependency order 1240PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1241 1242# prepare3 is used to check if we are building in a separate output directory, 1243# and if so do: 1244# 1) Check that make has not been executed in the kernel src $(srctree) 1245prepare3: include/config/uboot.release 1246ifneq ($(KBUILD_SRC),) 1247 @$(kecho) ' Using $(srctree) as source for U-Boot' 1248 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 1249 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1250 echo >&2 " in the '$(srctree)' directory.";\ 1251 /bin/false; \ 1252 fi; 1253endif 1254 1255# prepare2 creates a makefile if using a separate output directory 1256prepare2: prepare3 outputmakefile 1257 1258prepare1: prepare2 $(version_h) $(timestamp_h) \ 1259 include/config/auto.conf 1260ifeq ($(CONFIG_HAVE_GENERIC_BOARD),) 1261ifeq ($(CONFIG_SYS_GENERIC_BOARD),y) 1262 @echo >&2 " Your architecture does not support generic board." 1263 @echo >&2 " Please undefine CONFIG_SYS_GENERIC_BOARD in your board config file." 1264 @/bin/false 1265endif 1266endif 1267ifeq ($(wildcard $(LDSCRIPT)),) 1268 @echo >&2 " Could not find linker script." 1269 @/bin/false 1270endif 1271 1272archprepare: prepare1 scripts_basic 1273 1274prepare0: archprepare FORCE 1275 $(Q)$(MAKE) $(build)=. 1276 1277# All the preparing.. 1278prepare: prepare0 1279 1280# Generate some files 1281# --------------------------------------------------------------------------- 1282 1283define filechk_version.h 1284 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1285 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1286 echo \#define CC_VERSION_STRING \"$$($(CC) --version | head -n 1)\"; \ 1287 echo \#define LD_VERSION_STRING \"$$($(LD) --version | head -n 1)\"; ) 1288endef 1289 1290# The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date. 1291# The BSD date on the other hand behaves different and would produce errors 1292# with the misused '-d' switch. Respect that and search a working date with 1293# well known pre- and suffixes for the GNU variant of date. 1294define filechk_timestamp.h 1295 (if test -n "$${SOURCE_DATE_EPOCH}"; then \ 1296 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \ 1297 DATE=""; \ 1298 for date in gdate date.gnu date; do \ 1299 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \ 1300 done; \ 1301 if test -n "$${DATE}"; then \ 1302 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1303 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \ 1304 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \ 1305 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1306 else \ 1307 return 42; \ 1308 fi; \ 1309 else \ 1310 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1311 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \ 1312 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \ 1313 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1314 fi) 1315endef 1316 1317$(version_h): include/config/uboot.release FORCE 1318 $(call filechk,version.h) 1319 1320$(timestamp_h): $(srctree)/Makefile FORCE 1321 $(call filechk,timestamp.h) 1322 1323# --------------------------------------------------------------------------- 1324quiet_cmd_cpp_lds = LDS $@ 1325cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 1326 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 1327 1328u-boot.lds: $(LDSCRIPT) prepare FORCE 1329 $(call if_changed_dep,cpp_lds) 1330 1331spl/u-boot-spl.bin: spl/u-boot-spl 1332 @: 1333spl/u-boot-spl: tools prepare $(if $(CONFIG_OF_SEPARATE),dts/dt.dtb) 1334 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all 1335 1336spl/sunxi-spl.bin: spl/u-boot-spl 1337 @: 1338 1339spl/u-boot-spl.sfp: spl/u-boot-spl 1340 @: 1341 1342spl/boot.bin: spl/u-boot-spl 1343 @: 1344 1345tpl/u-boot-tpl.bin: tools prepare 1346 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all 1347 1348TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) 1349 1350FIND := find 1351FINDFLAGS := -L 1352 1353tags ctags: 1354 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1355 -name '*.[chS]' -print` 1356 ln -s ctags tags 1357 1358etags: 1359 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1360 -name '*.[chS]' -print` 1361cscope: 1362 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 1363 cscope.files 1364 cscope -b -q -k 1365 1366SYSTEM_MAP = \ 1367 $(NM) $1 | \ 1368 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 1369 LC_ALL=C sort 1370System.map: u-boot 1371 @$(call SYSTEM_MAP,$<) > $@ 1372 1373checkdtc: 1374 @if test $(call dtc-version) -lt 0104; then \ 1375 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \ 1376 false; \ 1377 fi 1378 1379######################################################################### 1380 1381# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 1382# R_AARCH64_RELATIVE (64-bit). 1383checkarmreloc: u-boot 1384 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 1385 grep R_A | sort -u`"; \ 1386 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 1387 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 1388 echo "$< contains unexpected relocations: $$RELOC"; \ 1389 false; \ 1390 fi 1391 1392env: scripts_basic 1393 $(Q)$(MAKE) $(build)=tools/$@ 1394 1395tools-only: scripts_basic $(version_h) $(timestamp_h) 1396 $(Q)$(MAKE) $(build)=tools 1397 1398tools-all: export HOST_TOOLS_ALL=y 1399tools-all: env tools ; 1400 1401cross_tools: export CROSS_BUILD_TOOLS=y 1402cross_tools: tools ; 1403 1404.PHONY : CHANGELOG 1405CHANGELOG: 1406 git log --no-merges U-Boot-1_1_5.. | \ 1407 unexpand -a | sed -e 's/\s\s*$$//' > $@ 1408 1409######################################################################### 1410 1411### 1412# Cleaning is done on three levels. 1413# make clean Delete most generated files 1414# Leave enough to build external modules 1415# make mrproper Delete the current configuration, and all generated files 1416# make distclean Remove editor backup files, patch leftover files and the like 1417 1418# Directories & files removed with 'make clean' 1419CLEAN_DIRS += $(MODVERDIR) \ 1420 $(foreach d, spl tpl, $(patsubst %,$d/%, \ 1421 $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) 1422 1423CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h include/license.h \ 1424 boot* u-boot* MLO* SPL System.map 1425 1426# Directories & files removed with 'make mrproper' 1427MRPROPER_DIRS += include/config include/generated spl tpl \ 1428 .tmp_objdiff 1429MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ 1430 ctags etags TAGS cscope* GPATH GTAGS GRTAGS GSYMS 1431 1432# clean - Delete most, but leave enough to build external modules 1433# 1434clean: rm-dirs := $(CLEAN_DIRS) 1435clean: rm-files := $(CLEAN_FILES) 1436 1437clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 1438 1439clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook) 1440 1441PHONY += $(clean-dirs) clean archclean 1442$(clean-dirs): 1443 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1444 1445# TODO: Do not use *.cfgtmp 1446clean: $(clean-dirs) 1447 $(call cmd,rmdirs) 1448 $(call cmd,rmfiles) 1449 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1450 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 1451 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \ 1452 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 1453 -o -name '*.symtypes' -o -name 'modules.order' \ 1454 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 1455 -o -name '*.gcno' \) -type f -print | xargs rm -f 1456 1457# mrproper - Delete all generated files, including .config 1458# 1459mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 1460mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 1461mrproper-dirs := $(addprefix _mrproper_,scripts) 1462 1463PHONY += $(mrproper-dirs) mrproper archmrproper 1464$(mrproper-dirs): 1465 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 1466 1467mrproper: clean $(mrproper-dirs) 1468 $(call cmd,rmdirs) 1469 $(call cmd,rmfiles) 1470 @rm -f arch/*/include/asm/arch 1471 1472# distclean 1473# 1474PHONY += distclean 1475 1476distclean: mrproper 1477 @find $(srctree) $(RCS_FIND_IGNORE) \ 1478 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 1479 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 1480 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 1481 -o -name '*.pyc' \) \ 1482 -type f -print | xargs rm -f 1483 @rm -f boards.cfg 1484 1485backup: 1486 F=`basename $(srctree)` ; cd .. ; \ 1487 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 1488 1489help: 1490 @echo 'Cleaning targets:' 1491 @echo ' clean - Remove most generated files but keep the config' 1492 @echo ' mrproper - Remove all generated files + config + various backup files' 1493 @echo ' distclean - mrproper + remove editor backup and patch files' 1494 @echo '' 1495 @echo 'Configuration targets:' 1496 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 1497 @echo '' 1498 @echo 'Other generic targets:' 1499 @echo ' all - Build all necessary images depending on configuration' 1500 @echo '* u-boot - Build the bare u-boot' 1501 @echo ' dir/ - Build all files in dir and below' 1502 @echo ' dir/file.[oisS] - Build specified target only' 1503 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 1504 @echo ' (requires a recent binutils and recent build (System.map))' 1505 @echo ' tags/ctags - Generate ctags file for editors' 1506 @echo ' etags - Generate etags file for editors' 1507 @echo ' cscope - Generate cscope index' 1508 @echo ' ubootrelease - Output the release version string (use with make -s)' 1509 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)' 1510 @echo '' 1511 @echo 'Static analysers' 1512 @echo ' checkstack - Generate a list of stack hogs' 1513 @echo '' 1514 @echo 'Documentation targets:' 1515 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp 1516 @echo '' 1517 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 1518 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 1519 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 1520 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 1521 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 1522 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 1523 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 1524 @echo ' 1: warnings which may be relevant and do not occur too often' 1525 @echo ' 2: warnings which occur quite often but may still be relevant' 1526 @echo ' 3: more obscure warnings, can most likely be ignored' 1527 @echo ' Multiple levels can be combined with W=12 or W=123' 1528 @echo '' 1529 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 1530 @echo 'For further info see the ./README file' 1531 1532 1533# Documentation targets 1534# --------------------------------------------------------------------------- 1535%docs: scripts_basic FORCE 1536 $(Q)$(MAKE) $(build)=scripts build_docproc 1537 $(Q)$(MAKE) $(build)=doc/DocBook $@ 1538 1539# Dummies... 1540PHONY += prepare scripts 1541prepare: ; 1542scripts: ; 1543 1544endif #ifeq ($(config-targets),1) 1545endif #ifeq ($(mixed-targets),1) 1546 1547PHONY += checkstack ubootrelease ubootversion 1548 1549checkstack: 1550 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 1551 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 1552 1553ubootrelease: 1554 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1555 1556ubootversion: 1557 @echo $(UBOOTVERSION) 1558 1559# Single targets 1560# --------------------------------------------------------------------------- 1561# Single targets are compatible with: 1562# - build with mixed source and output 1563# - build with separate output dir 'make O=...' 1564# - external modules 1565# 1566# target-dir => where to store outputfile 1567# build-dir => directory in kernel source tree to use 1568 1569ifeq ($(KBUILD_EXTMOD),) 1570 build-dir = $(patsubst %/,%,$(dir $@)) 1571 target-dir = $(dir $@) 1572else 1573 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 1574 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 1575 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 1576endif 1577 1578%.s: %.c prepare scripts FORCE 1579 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1580%.i: %.c prepare scripts FORCE 1581 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1582%.o: %.c prepare scripts FORCE 1583 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1584%.lst: %.c prepare scripts FORCE 1585 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1586%.s: %.S prepare scripts FORCE 1587 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1588%.o: %.S prepare scripts FORCE 1589 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1590%.symtypes: %.c prepare scripts FORCE 1591 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1592 1593# Modules 1594/: prepare scripts FORCE 1595 $(cmd_crmodverdir) 1596 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1597 $(build)=$(build-dir) 1598%/: prepare scripts FORCE 1599 $(cmd_crmodverdir) 1600 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1601 $(build)=$(build-dir) 1602%.ko: prepare scripts FORCE 1603 $(cmd_crmodverdir) 1604 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1605 $(build)=$(build-dir) $(@:.ko=.o) 1606 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1607 1608# FIXME Should go into a make.lib or something 1609# =========================================================================== 1610 1611quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 1612 cmd_rmdirs = rm -rf $(rm-dirs) 1613 1614quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 1615 cmd_rmfiles = rm -f $(rm-files) 1616 1617# read all saved command lines 1618 1619targets := $(wildcard $(sort $(targets))) 1620cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 1621 1622ifneq ($(cmd_files),) 1623 $(cmd_files): ; # Do not try to update included dependency files 1624 include $(cmd_files) 1625endif 1626 1627endif # skip-makefile 1628 1629PHONY += FORCE 1630FORCE: 1631 1632# Declare the contents of the .PHONY variable as phony. We keep that 1633# information in a variable so we can use it in if_changed and friends. 1634.PHONY: $(PHONY) 1635