1# 2# (C) Copyright 2000-2013 3# Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4# 5# SPDX-License-Identifier: GPL-2.0+ 6# 7 8VERSION = 2014 9PATCHLEVEL = 10 10SUBLEVEL = 11EXTRAVERSION = 12NAME = 13 14# *DOCUMENTATION* 15# To see a list of typical targets execute "make help" 16# More info can be located in ./README 17# Comments in this file are targeted only to the developer, do not 18# expect to learn how to build the kernel reading this file. 19 20# Do not: 21# o use make's built-in rules and variables 22# (this increases performance and avoids hard-to-debug behaviour); 23# o print "Entering directory ..."; 24MAKEFLAGS += -rR --no-print-directory 25 26# Avoid funny character set dependencies 27unexport LC_ALL 28LC_COLLATE=C 29LC_NUMERIC=C 30export LC_COLLATE LC_NUMERIC 31 32# We are using a recursive build, so we need to do a little thinking 33# to get the ordering right. 34# 35# Most importantly: sub-Makefiles should only ever modify files in 36# their own directory. If in some directory we have a dependency on 37# a file in another dir (which doesn't happen often, but it's often 38# unavoidable when linking the built-in.o targets which finally 39# turn into vmlinux), we will call a sub make in that other dir, and 40# after that we are sure that everything which is in that other dir 41# is now up to date. 42# 43# The only cases where we need to modify files which have global 44# effects are thus separated out and done before the recursive 45# descending is started. They are now explicitly listed as the 46# prepare rule. 47 48# To put more focus on warnings, be less verbose as default 49# Use 'make V=1' to see the full commands 50 51ifeq ("$(origin V)", "command line") 52 KBUILD_VERBOSE = $(V) 53endif 54ifndef KBUILD_VERBOSE 55 KBUILD_VERBOSE = 0 56endif 57 58# Call a source code checker (by default, "sparse") as part of the 59# C compilation. 60# 61# Use 'make C=1' to enable checking of only re-compiled files. 62# Use 'make C=2' to enable checking of *all* source files, regardless 63# of whether they are re-compiled or not. 64# 65# See the file "Documentation/sparse.txt" for more details, including 66# where to get the "sparse" utility. 67 68ifeq ("$(origin C)", "command line") 69 KBUILD_CHECKSRC = $(C) 70endif 71ifndef KBUILD_CHECKSRC 72 KBUILD_CHECKSRC = 0 73endif 74 75# Use make M=dir to specify directory of external module to build 76# Old syntax make ... SUBDIRS=$PWD is still supported 77# Setting the environment variable KBUILD_EXTMOD take precedence 78ifdef SUBDIRS 79 KBUILD_EXTMOD ?= $(SUBDIRS) 80endif 81 82ifeq ("$(origin M)", "command line") 83 KBUILD_EXTMOD := $(M) 84endif 85 86# kbuild supports saving output files in a separate directory. 87# To locate output files in a separate directory two syntaxes are supported. 88# In both cases the working directory must be the root of the kernel src. 89# 1) O= 90# Use "make O=dir/to/store/output/files/" 91# 92# 2) Set KBUILD_OUTPUT 93# Set the environment variable KBUILD_OUTPUT to point to the directory 94# where the output files shall be placed. 95# export KBUILD_OUTPUT=dir/to/store/output/files/ 96# make 97# 98# The O= assignment takes precedence over the KBUILD_OUTPUT environment 99# variable. 100 101 102# KBUILD_SRC is set on invocation of make in OBJ directory 103# KBUILD_SRC is not intended to be used by the regular user (for now) 104ifeq ($(KBUILD_SRC),) 105 106# OK, Make called in directory where kernel src resides 107# Do we want to locate output files in a separate directory? 108ifeq ("$(origin O)", "command line") 109 KBUILD_OUTPUT := $(O) 110endif 111 112# That's our default target when none is given on the command line 113PHONY := _all 114_all: 115 116# Cancel implicit rules on top Makefile 117$(CURDIR)/Makefile Makefile: ; 118 119ifneq ($(KBUILD_OUTPUT),) 120# Invoke a second make in the output directory, passing relevant variables 121# check that the output directory actually exists 122saved-output := $(KBUILD_OUTPUT) 123KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \ 124 && /bin/pwd) 125$(if $(KBUILD_OUTPUT),, \ 126 $(error failed to create output directory "$(saved-output)")) 127 128PHONY += $(MAKECMDGOALS) sub-make 129 130$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make 131 @: 132 133sub-make: FORCE 134 $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \ 135 KBUILD_SRC=$(CURDIR) \ 136 KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \ 137 $(filter-out _all sub-make,$(MAKECMDGOALS)) 138 139# Leave processing to above invocation of make 140skip-makefile := 1 141endif # ifneq ($(KBUILD_OUTPUT),) 142endif # ifeq ($(KBUILD_SRC),) 143 144# We process the rest of the Makefile if this is the final invocation of make 145ifeq ($(skip-makefile),) 146 147# If building an external module we do not care about the all: rule 148# but instead _all depend on modules 149PHONY += all 150ifeq ($(KBUILD_EXTMOD),) 151_all: all 152else 153_all: modules 154endif 155 156srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR)) 157objtree := $(CURDIR) 158src := $(srctree) 159obj := $(objtree) 160 161VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) 162 163export srctree objtree VPATH 164 165# Make sure CDPATH settings don't interfere 166unexport CDPATH 167 168######################################################################### 169 170HOSTARCH := $(shell uname -m | \ 171 sed -e s/i.86/x86/ \ 172 -e s/sun4u/sparc64/ \ 173 -e s/arm.*/arm/ \ 174 -e s/sa110/arm/ \ 175 -e s/ppc64/powerpc/ \ 176 -e s/ppc/powerpc/ \ 177 -e s/macppc/powerpc/\ 178 -e s/sh.*/sh/) 179 180HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \ 181 sed -e 's/\(cygwin\).*/cygwin/') 182 183export HOSTARCH HOSTOS 184 185######################################################################### 186 187# set default to nothing for native builds 188ifeq ($(HOSTARCH),$(ARCH)) 189CROSS_COMPILE ?= 190endif 191 192KCONFIG_CONFIG ?= .config 193export KCONFIG_CONFIG 194 195# SHELL used by kbuild 196CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ 197 else if [ -x /bin/bash ]; then echo /bin/bash; \ 198 else echo sh; fi ; fi) 199 200HOSTCC = cc 201HOSTCXX = c++ 202HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer 203HOSTCXXFLAGS = -O2 204 205ifeq ($(HOSTOS),cygwin) 206HOSTCFLAGS += -ansi 207endif 208 209# Mac OS X / Darwin's C preprocessor is Apple specific. It 210# generates numerous errors and warnings. We want to bypass it 211# and use GNU C's cpp. To do this we pass the -traditional-cpp 212# option to the compiler. Note that the -traditional-cpp flag 213# DOES NOT have the same semantics as GNU C's flag, all it does 214# is invoke the GNU preprocessor in stock ANSI/ISO C fashion. 215# 216# Apple's linker is similar, thanks to the new 2 stage linking 217# multiple symbol definitions are treated as errors, hence the 218# -multiply_defined suppress option to turn off this error. 219# 220ifeq ($(HOSTOS),darwin) 221# get major and minor product version (e.g. '10' and '6' for Snow Leopard) 222DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.') 223DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.') 224 225os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \ 226 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;) 227 228# Snow Leopards build environment has no longer restrictions as described above 229HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc") 230HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp") 231HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress") 232endif 233 234# Decide whether to build built-in, modular, or both. 235# Normally, just do built-in. 236 237KBUILD_MODULES := 238KBUILD_BUILTIN := 1 239 240# If we have only "make modules", don't compile built-in objects. 241# When we're building modules with modversions, we need to consider 242# the built-in objects during the descend as well, in order to 243# make sure the checksums are up to date before we record them. 244 245ifeq ($(MAKECMDGOALS),modules) 246 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) 247endif 248 249# If we have "make <whatever> modules", compile modules 250# in addition to whatever we do anyway. 251# Just "make" or "make all" shall build modules as well 252 253# U-Boot does not need modules 254#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) 255# KBUILD_MODULES := 1 256#endif 257 258#ifeq ($(MAKECMDGOALS),) 259# KBUILD_MODULES := 1 260#endif 261 262export KBUILD_MODULES KBUILD_BUILTIN 263export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD 264 265# Beautify output 266# --------------------------------------------------------------------------- 267# 268# Normally, we echo the whole command before executing it. By making 269# that echo $($(quiet)$(cmd)), we now have the possibility to set 270# $(quiet) to choose other forms of output instead, e.g. 271# 272# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ 273# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< 274# 275# If $(quiet) is empty, the whole command will be printed. 276# If it is set to "quiet_", only the short version will be printed. 277# If it is set to "silent_", nothing will be printed at all, since 278# the variable $(silent_cmd_cc_o_c) doesn't exist. 279# 280# A simple variant is to prefix commands with $(Q) - that's useful 281# for commands that shall be hidden in non-verbose mode. 282# 283# $(Q)ln $@ :< 284# 285# If KBUILD_VERBOSE equals 0 then the above command will be hidden. 286# If KBUILD_VERBOSE equals 1 then the above command is displayed. 287 288ifeq ($(KBUILD_VERBOSE),1) 289 quiet = 290 Q = 291else 292 quiet=quiet_ 293 Q = @ 294endif 295 296# If the user is running make -s (silent mode), suppress echoing of 297# commands 298 299ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4 300ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),) 301 quiet=silent_ 302endif 303else # make-3.8x 304ifneq ($(filter s% -s%,$(MAKEFLAGS)),) 305 quiet=silent_ 306endif 307endif 308 309export quiet Q KBUILD_VERBOSE 310 311# Look for make include files relative to root of kernel src 312MAKEFLAGS += --include-dir=$(srctree) 313 314# We need some generic definitions (do not try to remake the file). 315$(srctree)/scripts/Kbuild.include: ; 316include $(srctree)/scripts/Kbuild.include 317 318# Make variables (CC, etc...) 319 320AS = $(CROSS_COMPILE)as 321# Always use GNU ld 322ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),) 323LD = $(CROSS_COMPILE)ld.bfd 324else 325LD = $(CROSS_COMPILE)ld 326endif 327CC = $(CROSS_COMPILE)gcc 328CPP = $(CC) -E 329AR = $(CROSS_COMPILE)ar 330NM = $(CROSS_COMPILE)nm 331LDR = $(CROSS_COMPILE)ldr 332STRIP = $(CROSS_COMPILE)strip 333OBJCOPY = $(CROSS_COMPILE)objcopy 334OBJDUMP = $(CROSS_COMPILE)objdump 335AWK = awk 336PERL = perl 337PYTHON = python 338DTC = dtc 339CHECK = sparse 340 341CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ 342 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF) 343 344KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__ 345 346KBUILD_CFLAGS := -Wall -Wstrict-prototypes \ 347 -Wno-format-security \ 348 -fno-builtin -ffreestanding 349KBUILD_AFLAGS := -D__ASSEMBLY__ 350 351# Read UBOOTRELEASE from include/config/uboot.release (if it exists) 352UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null) 353UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) 354 355export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION 356export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR 357export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC 358export CPP AR NM LDR STRIP OBJCOPY OBJDUMP 359export MAKE AWK PERL PYTHON 360export HOSTCXX HOSTCXXFLAGS DTC CHECK CHECKFLAGS 361 362export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS 363export KBUILD_CFLAGS KBUILD_AFLAGS 364 365# When compiling out-of-tree modules, put MODVERDIR in the module 366# tree rather than in the kernel tree. The kernel tree might 367# even be read-only. 368export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions 369 370# Files to ignore in find ... statements 371 372export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ 373 -name CVS -o -name .pc -o -name .hg -o -name .git \) \ 374 -prune -o 375export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ 376 --exclude CVS --exclude .pc --exclude .hg --exclude .git 377 378# =========================================================================== 379# Rules shared between *config targets and build targets 380 381# Basic helpers built in scripts/ 382PHONY += scripts_basic 383scripts_basic: 384 $(Q)$(MAKE) $(build)=scripts/basic 385 $(Q)rm -f .tmp_quiet_recordmcount 386 387# To avoid any implicit rule to kick in, define an empty command. 388scripts/basic/%: scripts_basic ; 389 390PHONY += outputmakefile 391# outputmakefile generates a Makefile in the output directory, if using a 392# separate output directory. This allows convenient use of make in the 393# output directory. 394outputmakefile: 395ifneq ($(KBUILD_SRC),) 396 $(Q)ln -fsn $(srctree) source 397 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ 398 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) 399endif 400 401# To make sure we do not include .config for any of the *config targets 402# catch them early, and hand them over to scripts/kconfig/Makefile 403# It is allowed to specify more targets when calling make, including 404# mixing *config targets and build targets. 405# For example 'make oldconfig all'. 406# Detect when mixed targets is specified, and make a second invocation 407# of make so .config is not included in this case either (for *config). 408 409version_h := include/generated/version_autogenerated.h 410timestamp_h := include/generated/timestamp_autogenerated.h 411 412no-dot-config-targets := clean clobber mrproper distclean \ 413 help %docs check% coccicheck \ 414 ubootversion backup 415 416config-targets := 0 417mixed-targets := 0 418dot-config := 1 419 420ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) 421 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) 422 dot-config := 0 423 endif 424endif 425 426ifeq ($(KBUILD_EXTMOD),) 427 ifneq ($(filter config %config,$(MAKECMDGOALS)),) 428 config-targets := 1 429 ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) 430 mixed-targets := 1 431 endif 432 endif 433endif 434 435ifeq ($(mixed-targets),1) 436# =========================================================================== 437# We're called with mixed targets (*config and build targets). 438# Handle them one by one. 439 440PHONY += $(MAKECMDGOALS) __build_one_by_one 441 442$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one 443 @: 444 445__build_one_by_one: 446 $(Q)set -e; \ 447 for i in $(MAKECMDGOALS); do \ 448 $(MAKE) -f $(srctree)/Makefile $$i; \ 449 done 450 451else 452ifeq ($(config-targets),1) 453# =========================================================================== 454# *config targets only - make sure prerequisites are updated, and descend 455# in scripts/kconfig to make the *config target 456 457KBUILD_DEFCONFIG := sandbox_defconfig 458export KBUILD_DEFCONFIG KBUILD_KCONFIG 459 460config: scripts_basic outputmakefile FORCE 461 +$(Q)$(CONFIG_SHELL) $(srctree)/scripts/multiconfig.sh $@ 462 463%config: scripts_basic outputmakefile FORCE 464 +$(Q)$(CONFIG_SHELL) $(srctree)/scripts/multiconfig.sh $@ 465 466else 467# =========================================================================== 468# Build targets only - this includes vmlinux, arch specific targets, clean 469# targets and others. In general all targets except *config targets. 470 471ifeq ($(dot-config),1) 472# Read in config 473-include include/config/auto.conf 474 475# Read in dependencies to all Kconfig* files, make sure to run 476# oldconfig if changes are detected. 477-include include/config/auto.conf.cmd 478 479# To avoid any implicit rule to kick in, define an empty command 480$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; 481 482# If .config is newer than include/config/auto.conf, someone tinkered 483# with it and forgot to run make oldconfig. 484# if auto.conf.cmd is missing then we are probably in a cleaned tree so 485# we execute the config step to be sure to catch updated Kconfig files 486include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd 487 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig 488 489-include include/autoconf.mk 490-include include/autoconf.mk.dep 491 492# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf 493# is up-to-date. When we switch to a different board configuration, old CONFIG 494# macros are still remaining in include/config/auto.conf. Without the following 495# gimmick, wrong config.mk would be included leading nasty warnings/errors. 496autoconf_is_current := $(if $(wildcard $(KCONFIG_CONFIG)),$(shell find . \ 497 -path ./include/config/auto.conf -newer $(KCONFIG_CONFIG))) 498ifneq ($(autoconf_is_current),) 499include $(srctree)/config.mk 500endif 501 502# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use 503# that (or fail if absent). Otherwise, search for a linker script in a 504# standard location. 505 506ifndef LDSCRIPT 507 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug 508 ifdef CONFIG_SYS_LDSCRIPT 509 # need to strip off double quotes 510 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%) 511 endif 512endif 513 514# If there is no specified link script, we look in a number of places for it 515ifndef LDSCRIPT 516 ifeq ($(wildcard $(LDSCRIPT)),) 517 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds 518 endif 519 ifeq ($(wildcard $(LDSCRIPT)),) 520 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds 521 endif 522 ifeq ($(wildcard $(LDSCRIPT)),) 523 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds 524 endif 525endif 526 527else 528# Dummy target needed, because used as prerequisite 529include/config/auto.conf: ; 530endif # $(dot-config) 531 532ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 533KBUILD_CFLAGS += -Os 534else 535KBUILD_CFLAGS += -O2 536endif 537 538ifdef BUILD_TAG 539KBUILD_CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"' 540endif 541 542KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 543 544KBUILD_CFLAGS += -g 545# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 546# option to the assembler. 547KBUILD_AFLAGS += -g 548 549# Report stack usage if supported 550ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y) 551 KBUILD_CFLAGS += -fstack-usage 552endif 553 554KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) 555 556# turn jbsr into jsr for m68k 557ifeq ($(ARCH),m68k) 558ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4) 559KBUILD_AFLAGS += -Wa,-gstabs,-S 560endif 561endif 562 563# Prohibit date/time macros, which would make the build non-deterministic 564KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 565 566ifneq ($(CONFIG_SYS_TEXT_BASE),) 567KBUILD_CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE) 568endif 569 570export CONFIG_SYS_TEXT_BASE 571 572include $(srctree)/scripts/Makefile.extrawarn 573 574# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 575KBUILD_CPPFLAGS += $(KCPPFLAGS) 576KBUILD_AFLAGS += $(KAFLAGS) 577KBUILD_CFLAGS += $(KCFLAGS) 578 579# Use UBOOTINCLUDE when you must reference the include/ directory. 580# Needed to be compatible with the O= option 581UBOOTINCLUDE := \ 582 -Iinclude \ 583 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 584 -I$(srctree)/arch/$(ARCH)/include \ 585 -include $(srctree)/include/linux/kconfig.h 586 587NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 588CHECKFLAGS += $(NOSTDINC_FLAGS) 589 590# FIX ME 591cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 592 $(NOSTDINC_FLAGS) 593c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 594 595######################################################################### 596# U-Boot objects....order is important (i.e. start must be first) 597 598head-y := $(CPUDIR)/start.o 599head-$(CONFIG_4xx) += arch/powerpc/cpu/ppc4xx/resetvec.o 600head-$(CONFIG_MPC85xx) += arch/powerpc/cpu/mpc85xx/resetvec.o 601 602HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 603 604libs-y += lib/ 605libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 606libs-y += $(CPUDIR)/ 607ifdef SOC 608libs-y += $(CPUDIR)/$(SOC)/ 609endif 610libs-$(CONFIG_OF_EMBED) += dts/ 611libs-y += arch/$(ARCH)/lib/ 612libs-y += fs/ 613libs-y += net/ 614libs-y += disk/ 615libs-y += drivers/ 616libs-y += drivers/dma/ 617libs-y += drivers/gpio/ 618libs-y += drivers/i2c/ 619libs-y += drivers/mmc/ 620libs-y += drivers/mtd/ 621libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/ 622libs-y += drivers/mtd/onenand/ 623libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/ 624libs-y += drivers/mtd/spi/ 625libs-y += drivers/net/ 626libs-y += drivers/net/phy/ 627libs-y += drivers/pci/ 628libs-y += drivers/power/ \ 629 drivers/power/fuel_gauge/ \ 630 drivers/power/mfd/ \ 631 drivers/power/pmic/ \ 632 drivers/power/battery/ 633libs-y += drivers/spi/ 634libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/ 635libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ 636libs-y += drivers/serial/ 637libs-y += drivers/usb/eth/ 638libs-y += drivers/usb/gadget/ 639libs-y += drivers/usb/host/ 640libs-y += drivers/usb/musb/ 641libs-y += drivers/usb/musb-new/ 642libs-y += drivers/usb/phy/ 643libs-y += drivers/usb/ulpi/ 644libs-y += common/ 645libs-y += lib/libfdt/ 646libs-$(CONFIG_API) += api/ 647libs-$(CONFIG_HAS_POST) += post/ 648libs-y += test/ 649libs-y += test/dm/ 650 651ifneq (,$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35 mxs vf610)) 652libs-y += arch/$(ARCH)/imx-common/ 653endif 654 655ifneq (,$(filter $(SOC), kirkwood)) 656libs-y += arch/$(ARCH)/mvebu-common/ 657endif 658 659libs-$(CONFIG_ARM) += arch/arm/cpu/ 660libs-$(CONFIG_PPC) += arch/powerpc/cpu/ 661 662libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 663 664libs-y := $(sort $(libs-y)) 665 666u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 667 668u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 669 670libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 671 672u-boot-init := $(head-y) 673u-boot-main := $(libs-y) 674 675 676# Add GCC lib 677ifdef CONFIG_USE_PRIVATE_LIBGCC 678ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 679PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 680else 681PLATFORM_LIBGCC = -L $(CONFIG_USE_PRIVATE_LIBGCC) -lgcc 682endif 683else 684PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 685endif 686PLATFORM_LIBS += $(PLATFORM_LIBGCC) 687export PLATFORM_LIBS 688export PLATFORM_LIBGCC 689 690# Special flags for CPP when processing the linker script. 691# Pass the version down so we can handle backwards compatibility 692# on the fly. 693LDPPFLAGS += \ 694 -include $(srctree)/include/u-boot/u-boot.lds.h \ 695 -DCPUDIR=$(CPUDIR) \ 696 $(shell $(LD) --version | \ 697 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 698 699######################################################################### 700######################################################################### 701 702ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 703BOARD_SIZE_CHECK = \ 704 @actual=`wc -c $@ | awk '{print $$1}'`; \ 705 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \ 706 if test $$actual -gt $$limit; then \ 707 echo "$@ exceeds file size limit:" >&2 ; \ 708 echo " limit: $$limit bytes" >&2 ; \ 709 echo " actual: $$actual bytes" >&2 ; \ 710 echo " excess: $$((actual - limit)) bytes" >&2; \ 711 exit 1; \ 712 fi 713else 714BOARD_SIZE_CHECK = 715endif 716 717# Statically apply RELA-style relocations (currently arm64 only) 718ifneq ($(CONFIG_STATIC_RELA),) 719# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base 720DO_STATIC_RELA = \ 721 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \ 722 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \ 723 tools/relocate-rela $(2) $(3) $$start $$end 724else 725DO_STATIC_RELA = 726endif 727 728# Always append ALL so that arch config.mk's can add custom ones 729ALL-y += u-boot.srec u-boot.bin System.map binary_size_check 730 731ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin 732ifeq ($(CONFIG_SPL_FSL_PBL),y) 733ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 734else 735ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 736endif 737ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin 738ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 739ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 740ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb u-boot-dtb.bin 741ifeq ($(CONFIG_SPL_FRAMEWORK),y) 742ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 743endif 744ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb 745ifneq ($(CONFIG_SPL_TARGET),) 746ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 747endif 748ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf 749 750# enable combined SPL/u-boot/dtb rules for tegra 751ifneq ($(CONFIG_TEGRA),) 752ifeq ($(CONFIG_SPL),y) 753ifeq ($(CONFIG_OF_SEPARATE),y) 754ALL-y += u-boot-dtb-tegra.bin 755else 756ALL-y += u-boot-nodtb-tegra.bin 757endif 758endif 759endif 760 761LDFLAGS_u-boot += $(LDFLAGS_FINAL) 762ifneq ($(CONFIG_SYS_TEXT_BASE),) 763LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 764endif 765 766quiet_cmd_objcopy = OBJCOPY $@ 767cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 768 769quiet_cmd_mkimage = MKIMAGE $@ 770cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 771 $(if $(KBUILD_VERBOSE:1=), >/dev/null) 772 773quiet_cmd_cat = CAT $@ 774cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 775 776append = cat $(filter-out $< $(PHONY), $^) >> $@ 777 778quiet_cmd_pad_cat = CAT $@ 779cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@ 780 781all: $(ALL-y) 782 783PHONY += dtbs 784dtbs dts/dt.dtb: checkdtc u-boot 785 $(Q)$(MAKE) $(build)=dts dtbs 786 787u-boot-dtb.bin: u-boot.bin dts/dt.dtb FORCE 788 $(call if_changed,cat) 789 790%.imx: %.bin 791 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 792 793quiet_cmd_copy = COPY $@ 794 cmd_copy = cp $< $@ 795 796u-boot.dtb: dts/dt.dtb 797 $(call cmd,copy) 798 799OBJCOPYFLAGS_u-boot.hex := -O ihex 800 801OBJCOPYFLAGS_u-boot.srec := -O srec 802 803u-boot.hex u-boot.srec: u-boot FORCE 804 $(call if_changed,objcopy) 805 806OBJCOPYFLAGS_u-boot.bin := -O binary 807 808binary_size_check: u-boot.bin FORCE 809 @file_size=$(shell wc -c u-boot.bin | awk '{print $$1}') ; \ 810 map_size=$(shell cat u-boot.map | \ 811 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \ 812 | sed 's/0X//g' \ 813 | bc); \ 814 if [ "" != "$$map_size" ]; then \ 815 if test $$map_size -ne $$file_size; then \ 816 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ 817 echo " but u-boot.bin shows $$file_size" >&2 ; \ 818 exit 1; \ 819 fi \ 820 fi 821 822u-boot.bin: u-boot FORCE 823 $(call if_changed,objcopy) 824 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE)) 825 $(BOARD_SIZE_CHECK) 826 827u-boot.ldr: u-boot 828 $(CREATE_LDR_ENV) 829 $(LDR) -T $(CONFIG_BFIN_CPU) -c $@ $< $(LDR_FLAGS) 830 $(BOARD_SIZE_CHECK) 831 832OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 833 834OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 835 836u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 837 $(call if_changed,objcopy) 838 839# 840# U-Boot entry point, needed for booting of full-blown U-Boot 841# from the SPL U-Boot version. 842# 843ifndef CONFIG_SYS_UBOOT_START 844CONFIG_SYS_UBOOT_START := 0 845endif 846 847MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 848 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 849 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 850 851MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 852 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 853 854MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 855 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 856 857u-boot.img u-boot.kwb u-boot.pbl: u-boot.bin FORCE 858 $(call if_changed,mkimage) 859 860MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 861 862u-boot-dtb.img: u-boot-dtb.bin FORCE 863 $(call if_changed,mkimage) 864 865u-boot.sha1: u-boot.bin 866 tools/ubsha1 u-boot.bin 867 868u-boot.dis: u-boot 869 $(OBJDUMP) -d $< > $@ 870 871ifdef CONFIG_TPL 872SPL_PAYLOAD := tpl/u-boot-with-tpl.bin 873else 874SPL_PAYLOAD := u-boot.bin 875endif 876 877OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 878 --pad-to=$(CONFIG_SPL_PAD_TO) 879u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE 880 $(call if_changed,pad_cat) 881 882OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 883 --pad-to=$(CONFIG_TPL_PAD_TO) 884tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 885 $(call if_changed,pad_cat) 886 887SPL: spl/u-boot-spl.bin FORCE 888 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 889 890u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE 891 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 892 893MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE) 894 895u-boot.ubl: u-boot-with-spl.bin FORCE 896 $(call if_changed,mkimage) 897 898MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \ 899 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ 900 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 901spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 902 $(call if_changed,mkimage) 903 904OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 905u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 906 $(call if_changed,pad_cat) 907 908u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 909 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 910u-boot.sb: u-boot.bin spl/u-boot-spl.bin 911 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 912 913# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL. 914# Both images are created using mkimage (crc etc), so that the ROM 915# bootloader can check its integrity. Padding needs to be done to the 916# SPL image (with mkimage header) and not the binary. Otherwise the resulting image 917# which is loaded/copied by the ROM bootloader to SRAM doesn't fit. 918# The resulting image containing both U-Boot images is called u-boot.spr 919MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 920 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 921spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 922 $(call if_changed,mkimage) 923 924OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 925 --gap-fill=0xff 926u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE 927 $(call if_changed,pad_cat) 928 929MKIMAGEFLAGS_u-boot-spl.gph = -A $(ARCH) -T gpimage -C none \ 930 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n SPL 931spl/u-boot-spl.gph: spl/u-boot-spl.bin FORCE 932 $(call if_changed,mkimage) 933 934OBJCOPYFLAGS_u-boot-spi.gph = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 935 --gap-fill=0 936u-boot-spi.gph: spl/u-boot-spl.gph u-boot.img FORCE 937 $(call if_changed,pad_cat) 938 939MKIMAGEFLAGS_u-boot-nand.gph = -A $(ARCH) -T gpimage -C none \ 940 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) -n U-Boot 941u-boot-nand.gph: u-boot.bin FORCE 942 $(call if_changed,mkimage) 943 @dd if=/dev/zero bs=8 count=1 2>/dev/null >> $@ 944 945ifneq ($(CONFIG_SUNXI),) 946OBJCOPYFLAGS_u-boot-sunxi-with-spl.bin = -I binary -O binary \ 947 --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff 948u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img FORCE 949 $(call if_changed,pad_cat) 950endif 951 952ifneq ($(CONFIG_TEGRA),) 953OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 954u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot.bin FORCE 955 $(call if_changed,pad_cat) 956 957ifeq ($(CONFIG_OF_SEPARATE),y) 958u-boot-dtb-tegra.bin: u-boot-nodtb-tegra.bin dts/dt.dtb FORCE 959 $(call if_changed,cat) 960endif 961endif 962 963u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 964 $(call if_changed,cat) 965 966#Add a target to create boot binary having SPL binary in PBI format 967#concatenated with u-boot binary. It is need by PowerPC SoC having 968#internal SRAM <= 512KB. 969MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 970 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 971 972spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 973 $(call if_changed,mkimage) 974 975OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 976 --gap-fill=0xff 977 978u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl u-boot.bin FORCE 979 $(call if_changed,pad_cat) 980 981# PPC4xx needs the SPL at the end of the image, since the reset vector 982# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target 983# and need to introduce a new build target with the full blown U-Boot 984# at the start padded up to the start of the SPL image. And then concat 985# the SPL image to the end. 986 987OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ 988 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff 989u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE 990 $(call if_changed,pad_cat) 991 992# Create a new ELF from a raw binary file. This is useful for arm64 993# where static relocation needs to be performed on the raw binary, 994# but certain simulators only accept an ELF file (but don't do the 995# relocation). 996# FIXME refactor dts/Makefile to share target/arch detection 997u-boot.elf: u-boot.bin 998 @$(OBJCOPY) -B aarch64 -I binary -O elf64-littleaarch64 \ 999 $< u-boot-elf.o 1000 @$(LD) u-boot-elf.o -o $@ \ 1001 --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \ 1002 -Ttext=$(CONFIG_SYS_TEXT_BASE) 1003 1004# Rule to link u-boot 1005# May be overridden by arch/$(ARCH)/config.mk 1006quiet_cmd_u-boot__ ?= LD $@ 1007 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1008 -T u-boot.lds $(u-boot-init) \ 1009 --start-group $(u-boot-main) --end-group \ 1010 $(PLATFORM_LIBS) -Map u-boot.map 1011 1012quiet_cmd_smap = GEN common/system_map.o 1013cmd_smap = \ 1014 smap=`$(call SYSTEM_MAP,u-boot) | \ 1015 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1016 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1017 -c $(srctree)/common/system_map.c -o common/system_map.o 1018 1019u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds 1020 $(call if_changed,u-boot__) 1021ifeq ($(CONFIG_KALLSYMS),y) 1022 $(call cmd,smap) 1023 $(call cmd,u-boot__) common/system_map.o 1024endif 1025 1026# The actual objects are generated when descending, 1027# make sure no implicit rule kicks in 1028$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1029 1030# Handle descending into subdirectories listed in $(vmlinux-dirs) 1031# Preset locale variables to speed up the build process. Limit locale 1032# tweaks to this spot to avoid wrong language settings when running 1033# make menuconfig etc. 1034# Error messages still appears in the original language 1035 1036PHONY += $(u-boot-dirs) 1037$(u-boot-dirs): prepare scripts 1038 $(Q)$(MAKE) $(build)=$@ 1039 1040tools: prepare 1041# The "tools" are needed early 1042$(filter-out tools, $(u-boot-dirs)): tools 1043# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1044# is "yes"), so compile examples after U-Boot is compiled. 1045examples: $(filter-out examples, $(u-boot-dirs)) 1046 1047define filechk_uboot.release 1048 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1049endef 1050 1051# Store (new) UBOOTRELEASE string in include/config/uboot.release 1052include/config/uboot.release: include/config/auto.conf FORCE 1053 $(call filechk,uboot.release) 1054 1055 1056# Things we need to do before we recursively start building the kernel 1057# or the modules are listed in "prepare". 1058# A multi level approach is used. prepareN is processed before prepareN-1. 1059# archprepare is used in arch Makefiles and when processed asm symlink, 1060# version.h and scripts_basic is processed / created. 1061 1062# Listed in dependency order 1063PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1064 1065# prepare3 is used to check if we are building in a separate output directory, 1066# and if so do: 1067# 1) Check that make has not been executed in the kernel src $(srctree) 1068prepare3: include/config/uboot.release 1069ifneq ($(KBUILD_SRC),) 1070 @$(kecho) ' Using $(srctree) as source for U-Boot' 1071 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 1072 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1073 echo >&2 " in the '$(srctree)' directory.";\ 1074 /bin/false; \ 1075 fi; 1076endif 1077 1078# prepare2 creates a makefile if using a separate output directory 1079prepare2: prepare3 outputmakefile 1080 1081prepare1: prepare2 $(version_h) $(timestamp_h) \ 1082 include/config/auto.conf 1083ifeq ($(__HAVE_ARCH_GENERIC_BOARD),) 1084ifeq ($(CONFIG_SYS_GENERIC_BOARD),y) 1085 @echo >&2 " Your architecture does not support generic board." 1086 @echo >&2 " Please undefine CONFIG_SYS_GENERIC_BOARD in your board config file." 1087 @/bin/false 1088endif 1089endif 1090ifeq ($(wildcard $(LDSCRIPT)),) 1091 @echo >&2 " Could not find linker script." 1092 @/bin/false 1093endif 1094 1095archprepare: prepare1 scripts_basic 1096 1097prepare0: archprepare FORCE 1098 $(Q)$(MAKE) $(build)=. 1099 1100# All the preparing.. 1101prepare: prepare0 1102 1103# Generate some files 1104# --------------------------------------------------------------------------- 1105 1106define filechk_version.h 1107 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1108 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1109 echo \#define CC_VERSION_STRING \"$$($(CC) --version | head -n 1)\"; \ 1110 echo \#define LD_VERSION_STRING \"$$($(LD) --version | head -n 1)\"; ) 1111endef 1112 1113define filechk_timestamp.h 1114 (LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1115 LC_ALL=C date +'#define U_BOOT_TIME "%T"') 1116endef 1117 1118$(version_h): include/config/uboot.release FORCE 1119 $(call filechk,version.h) 1120 1121$(timestamp_h): $(srctree)/Makefile FORCE 1122 $(call filechk,timestamp.h) 1123 1124# --------------------------------------------------------------------------- 1125 1126PHONY += depend dep 1127depend dep: 1128 @echo '*** Warning: make $@ is unnecessary now.' 1129 1130# --------------------------------------------------------------------------- 1131quiet_cmd_cpp_lds = LDS $@ 1132cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 1133 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 1134 1135u-boot.lds: $(LDSCRIPT) prepare FORCE 1136 $(call if_changed_dep,cpp_lds) 1137 1138spl/u-boot-spl.bin: spl/u-boot-spl 1139 @: 1140spl/u-boot-spl: tools prepare 1141 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all 1142 1143spl/sunxi-spl.bin: spl/u-boot-spl 1144 @: 1145 1146tpl/u-boot-tpl.bin: tools prepare 1147 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all 1148 1149TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) 1150 1151FIND := find 1152FINDFLAGS := -L 1153 1154tags ctags: 1155 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1156 -name '*.[chS]' -print` 1157 1158etags: 1159 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1160 -name '*.[chS]' -print` 1161cscope: 1162 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 1163 cscope.files 1164 cscope -b -q -k 1165 1166SYSTEM_MAP = \ 1167 $(NM) $1 | \ 1168 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 1169 LC_ALL=C sort 1170System.map: u-boot 1171 @$(call SYSTEM_MAP,$<) > $@ 1172 1173checkdtc: 1174 @if test $(call dtc-version) -lt 0104; then \ 1175 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \ 1176 false; \ 1177 fi 1178 1179######################################################################### 1180 1181# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 1182# R_AARCH64_RELATIVE (64-bit). 1183checkarmreloc: u-boot 1184 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 1185 grep R_A | sort -u`"; \ 1186 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 1187 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 1188 echo "$< contains unexpected relocations: $$RELOC"; \ 1189 false; \ 1190 fi 1191 1192env: scripts_basic 1193 $(Q)$(MAKE) $(build)=tools/$@ 1194 1195tools-only: scripts_basic $(version_h) $(timestamp_h) 1196 $(Q)$(MAKE) $(build)=tools 1197 1198tools-all: export HOST_TOOLS_ALL=y 1199tools-all: env tools ; 1200 1201cross_tools: export CROSS_BUILD_TOOLS=y 1202cross_tools: tools ; 1203 1204.PHONY : CHANGELOG 1205CHANGELOG: 1206 git log --no-merges U-Boot-1_1_5.. | \ 1207 unexpand -a | sed -e 's/\s\s*$$//' > $@ 1208 1209include/license.h: tools/bin2header COPYING 1210 cat COPYING | gzip -9 -c | ./tools/bin2header license_gzip > include/license.h 1211######################################################################### 1212 1213### 1214# Cleaning is done on three levels. 1215# make clean Delete most generated files 1216# Leave enough to build external modules 1217# make mrproper Delete the current configuration, and all generated files 1218# make distclean Remove editor backup files, patch leftover files and the like 1219 1220# Directories & files removed with 'make clean' 1221CLEAN_DIRS += $(MODVERDIR) 1222CLEAN_FILES += u-boot.lds include/bmp_logo.h include/bmp_logo_data.h 1223 1224# Directories & files removed with 'make clobber' 1225CLOBBER_DIRS += $(foreach d, spl tpl, $(patsubst %,$d/%, \ 1226 $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) 1227CLOBBER_FILES += u-boot* MLO* SPL System.map 1228 1229# Directories & files removed with 'make mrproper' 1230MRPROPER_DIRS += include/config include/generated spl tpl \ 1231 .tmp_objdiff 1232MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ 1233 ctags etags TAGS cscope* GPATH GTAGS GRTAGS GSYMS 1234 1235# clean - Delete most, but leave enough to build external modules 1236# 1237clean: rm-dirs := $(CLEAN_DIRS) 1238clean: rm-files := $(CLEAN_FILES) 1239 1240clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 1241 1242clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook) 1243 1244PHONY += $(clean-dirs) clean archclean 1245$(clean-dirs): 1246 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1247 1248# TODO: Do not use *.cfgtmp 1249clean: $(clean-dirs) 1250 $(call cmd,rmdirs) 1251 $(call cmd,rmfiles) 1252 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1253 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 1254 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \ 1255 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 1256 -o -name '*.symtypes' -o -name 'modules.order' \ 1257 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 1258 -o -name '*.gcno' \) -type f -print | xargs rm -f 1259 1260# clobber 1261# 1262clobber: rm-dirs := $(CLOBBER_DIRS) 1263clobber: rm-files := $(CLOBBER_FILES) 1264 1265PHONY += clobber 1266 1267clobber: clean 1268 $(call cmd,rmdirs) 1269 $(call cmd,rmfiles) 1270 1271# mrproper - Delete all generated files, including .config 1272# 1273mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 1274mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 1275mrproper-dirs := $(addprefix _mrproper_,scripts) 1276 1277PHONY += $(mrproper-dirs) mrproper archmrproper 1278$(mrproper-dirs): 1279 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 1280 1281mrproper: clobber $(mrproper-dirs) 1282 $(call cmd,rmdirs) 1283 $(call cmd,rmfiles) 1284 @rm -f arch/*/include/asm/arch 1285 1286# distclean 1287# 1288PHONY += distclean 1289 1290distclean: mrproper 1291 @find $(srctree) $(RCS_FIND_IGNORE) \ 1292 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 1293 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 1294 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 1295 -o -name '*.pyc' \) \ 1296 -type f -print | xargs rm -f 1297 @rm -f boards.cfg 1298 1299backup: 1300 F=`basename $(srctree)` ; cd .. ; \ 1301 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 1302 1303help: 1304 @echo 'Cleaning targets:' 1305 @echo ' clean - Remove most generated files but keep the config and' 1306 @echo ' necessities for testing u-boot' 1307 @echo ' clobber - Remove most generated files but keep the config' 1308 @echo ' mrproper - Remove all generated files + config + various backup files' 1309 @echo ' distclean - mrproper + remove editor backup and patch files' 1310 @echo '' 1311 @echo 'Configuration targets:' 1312 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 1313 @echo '' 1314 @echo 'Other generic targets:' 1315 @echo ' all - Build all necessary images depending on configuration' 1316 @echo ' u-boot - Build the bare u-boot' 1317 @echo ' dir/ - Build all files in dir and below' 1318 @echo ' dir/file.[oisS] - Build specified target only' 1319 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 1320 @echo ' (requires a recent binutils and recent build (System.map))' 1321 @echo ' tags/ctags - Generate ctags file for editors' 1322 @echo ' etags - Generate etags file for editors' 1323 @echo ' cscope - Generate cscope index' 1324 @echo ' ubootrelease - Output the release version string' 1325 @echo ' ubootversion - Output the version stored in Makefile' 1326 @echo '' 1327 @echo 'Static analysers' 1328 @echo ' checkstack - Generate a list of stack hogs' 1329 @echo '' 1330 @echo 'Documentation targets:' 1331 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp 1332 @echo '' 1333 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 1334 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 1335 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 1336 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 1337 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 1338 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 1339 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 1340 @echo ' 1: warnings which may be relevant and do not occur too often' 1341 @echo ' 2: warnings which occur quite often but may still be relevant' 1342 @echo ' 3: more obscure warnings, can most likely be ignored' 1343 @echo ' Multiple levels can be combined with W=12 or W=123' 1344 @echo '' 1345 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 1346 @echo 'For further info see the ./README file' 1347 1348 1349# Documentation targets 1350# --------------------------------------------------------------------------- 1351%docs: scripts_basic FORCE 1352 $(Q)$(MAKE) $(build)=scripts build_docproc 1353 $(Q)$(MAKE) $(build)=doc/DocBook $@ 1354 1355# Dummies... 1356PHONY += prepare scripts 1357prepare: ; 1358scripts: ; 1359 1360endif #ifeq ($(config-targets),1) 1361endif #ifeq ($(mixed-targets),1) 1362 1363PHONY += checkstack ubootrelease ubootversion 1364 1365checkstack: 1366 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 1367 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 1368 1369ubootrelease: 1370 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1371 1372ubootversion: 1373 @echo $(UBOOTVERSION) 1374 1375# Single targets 1376# --------------------------------------------------------------------------- 1377# Single targets are compatible with: 1378# - build with mixed source and output 1379# - build with separate output dir 'make O=...' 1380# - external modules 1381# 1382# target-dir => where to store outputfile 1383# build-dir => directory in kernel source tree to use 1384 1385ifeq ($(KBUILD_EXTMOD),) 1386 build-dir = $(patsubst %/,%,$(dir $@)) 1387 target-dir = $(dir $@) 1388else 1389 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 1390 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 1391 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 1392endif 1393 1394%.s: %.c prepare scripts FORCE 1395 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1396%.i: %.c prepare scripts FORCE 1397 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1398%.o: %.c prepare scripts FORCE 1399 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1400%.lst: %.c prepare scripts FORCE 1401 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1402%.s: %.S prepare scripts FORCE 1403 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1404%.o: %.S prepare scripts FORCE 1405 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1406%.symtypes: %.c prepare scripts FORCE 1407 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1408 1409# Modules 1410/: prepare scripts FORCE 1411 $(cmd_crmodverdir) 1412 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1413 $(build)=$(build-dir) 1414%/: prepare scripts FORCE 1415 $(cmd_crmodverdir) 1416 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1417 $(build)=$(build-dir) 1418%.ko: prepare scripts FORCE 1419 $(cmd_crmodverdir) 1420 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1421 $(build)=$(build-dir) $(@:.ko=.o) 1422 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1423 1424# FIXME Should go into a make.lib or something 1425# =========================================================================== 1426 1427quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 1428 cmd_rmdirs = rm -rf $(rm-dirs) 1429 1430quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 1431 cmd_rmfiles = rm -f $(rm-files) 1432 1433# read all saved command lines 1434 1435targets := $(wildcard $(sort $(targets))) 1436cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 1437 1438ifneq ($(cmd_files),) 1439 $(cmd_files): ; # Do not try to update included dependency files 1440 include $(cmd_files) 1441endif 1442 1443# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir 1444# Usage: 1445# $(Q)$(MAKE) $(clean)=dir 1446clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj 1447 1448endif # skip-makefile 1449 1450PHONY += FORCE 1451FORCE: 1452 1453# Declare the contents of the .PHONY variable as phony. We keep that 1454# information in a variable so we can use it in if_changed and friends. 1455.PHONY: $(PHONY) 1456