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 = 04 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 := $(O) 110endif 111 112ifeq ("$(origin W)", "command line") 113 export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W) 114endif 115 116# That's our default target when none is given on the command line 117PHONY := _all 118_all: 119 120# Cancel implicit rules on top Makefile 121$(CURDIR)/Makefile Makefile: ; 122 123ifneq ($(KBUILD_OUTPUT),) 124# Invoke a second make in the output directory, passing relevant variables 125# check that the output directory actually exists 126saved-output := $(KBUILD_OUTPUT) 127KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \ 128 && /bin/pwd) 129$(if $(KBUILD_OUTPUT),, \ 130 $(error failed to create output directory "$(saved-output)")) 131 132PHONY += $(MAKECMDGOALS) sub-make 133 134$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make 135 @: 136 137sub-make: FORCE 138 $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \ 139 KBUILD_SRC=$(CURDIR) \ 140 KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \ 141 $(filter-out _all sub-make,$(MAKECMDGOALS)) 142 143# Leave processing to above invocation of make 144skip-makefile := 1 145endif # ifneq ($(KBUILD_OUTPUT),) 146endif # ifeq ($(KBUILD_SRC),) 147 148# We process the rest of the Makefile if this is the final invocation of make 149ifeq ($(skip-makefile),) 150 151# If building an external module we do not care about the all: rule 152# but instead _all depend on modules 153PHONY += all 154ifeq ($(KBUILD_EXTMOD),) 155_all: all 156else 157_all: modules 158endif 159 160srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR)) 161objtree := $(CURDIR) 162src := $(srctree) 163obj := $(objtree) 164 165VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) 166 167export srctree objtree VPATH 168 169MKCONFIG := $(srctree)/mkconfig 170export MKCONFIG 171 172# Make sure CDPATH settings don't interfere 173unexport CDPATH 174 175######################################################################### 176 177HOSTARCH := $(shell uname -m | \ 178 sed -e s/i.86/x86/ \ 179 -e s/sun4u/sparc64/ \ 180 -e s/arm.*/arm/ \ 181 -e s/sa110/arm/ \ 182 -e s/ppc64/powerpc/ \ 183 -e s/ppc/powerpc/ \ 184 -e s/macppc/powerpc/\ 185 -e s/sh.*/sh/) 186 187HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \ 188 sed -e 's/\(cygwin\).*/cygwin/') 189 190export HOSTARCH HOSTOS 191 192# Deal with colliding definitions from tcsh etc. 193VENDOR= 194 195######################################################################### 196 197# set default to nothing for native builds 198ifeq ($(HOSTARCH),$(ARCH)) 199CROSS_COMPILE ?= 200endif 201 202# SHELL used by kbuild 203CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ 204 else if [ -x /bin/bash ]; then echo /bin/bash; \ 205 else echo sh; fi ; fi) 206 207HOSTCC = gcc 208HOSTCXX = g++ 209HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer 210HOSTCXXFLAGS = -O2 211 212ifeq ($(shell $(HOSTCC) -v 2>&1 | grep -c "clang version"), 1) 213HOSTCFLAGS += -Wno-unused-value -Wno-unused-parameter \ 214 -Wno-missing-field-initializers -fno-delete-null-pointer-checks 215endif 216 217ifeq ($(HOSTOS),cygwin) 218HOSTCFLAGS += -ansi 219endif 220 221# Mac OS X / Darwin's C preprocessor is Apple specific. It 222# generates numerous errors and warnings. We want to bypass it 223# and use GNU C's cpp. To do this we pass the -traditional-cpp 224# option to the compiler. Note that the -traditional-cpp flag 225# DOES NOT have the same semantics as GNU C's flag, all it does 226# is invoke the GNU preprocessor in stock ANSI/ISO C fashion. 227# 228# Apple's linker is similar, thanks to the new 2 stage linking 229# multiple symbol definitions are treated as errors, hence the 230# -multiply_defined suppress option to turn off this error. 231# 232ifeq ($(HOSTOS),darwin) 233# get major and minor product version (e.g. '10' and '6' for Snow Leopard) 234DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.') 235DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.') 236 237os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \ 238 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;) 239 240# Snow Leopards build environment has no longer restrictions as described above 241HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc") 242HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp") 243HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress") 244endif 245 246# Decide whether to build built-in, modular, or both. 247# Normally, just do built-in. 248 249KBUILD_MODULES := 250KBUILD_BUILTIN := 1 251 252# If we have only "make modules", don't compile built-in objects. 253# When we're building modules with modversions, we need to consider 254# the built-in objects during the descend as well, in order to 255# make sure the checksums are up to date before we record them. 256 257ifeq ($(MAKECMDGOALS),modules) 258 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) 259endif 260 261# If we have "make <whatever> modules", compile modules 262# in addition to whatever we do anyway. 263# Just "make" or "make all" shall build modules as well 264 265# U-Boot does not need modules 266#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) 267# KBUILD_MODULES := 1 268#endif 269 270#ifeq ($(MAKECMDGOALS),) 271# KBUILD_MODULES := 1 272#endif 273 274export KBUILD_MODULES KBUILD_BUILTIN 275export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD 276 277# Beautify output 278# --------------------------------------------------------------------------- 279# 280# Normally, we echo the whole command before executing it. By making 281# that echo $($(quiet)$(cmd)), we now have the possibility to set 282# $(quiet) to choose other forms of output instead, e.g. 283# 284# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ 285# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< 286# 287# If $(quiet) is empty, the whole command will be printed. 288# If it is set to "quiet_", only the short version will be printed. 289# If it is set to "silent_", nothing will be printed at all, since 290# the variable $(silent_cmd_cc_o_c) doesn't exist. 291# 292# A simple variant is to prefix commands with $(Q) - that's useful 293# for commands that shall be hidden in non-verbose mode. 294# 295# $(Q)ln $@ :< 296# 297# If KBUILD_VERBOSE equals 0 then the above command will be hidden. 298# If KBUILD_VERBOSE equals 1 then the above command is displayed. 299 300ifeq ($(KBUILD_VERBOSE),1) 301 quiet = 302 Q = 303else 304 quiet=quiet_ 305 Q = @ 306endif 307 308# If the user is running make -s (silent mode), suppress echoing of 309# commands 310 311ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4 312ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),) 313 quiet=silent_ 314endif 315else # make-3.8x 316ifneq ($(filter s% -s%,$(MAKEFLAGS)),) 317 quiet=silent_ 318endif 319endif 320 321export quiet Q KBUILD_VERBOSE 322 323ifneq ($(CC),) 324ifeq ($(shell $(CC) -v 2>&1 | grep -c "clang version"), 1) 325COMPILER := clang 326else 327COMPILER := gcc 328endif 329export COMPILER 330endif 331 332# Look for make include files relative to root of kernel src 333MAKEFLAGS += --include-dir=$(srctree) 334 335# We need some generic definitions (do not try to remake the file). 336$(srctree)/scripts/Kbuild.include: ; 337include $(srctree)/scripts/Kbuild.include 338 339# Make variables (CC, etc...) 340 341AS = $(CROSS_COMPILE)as 342# Always use GNU ld 343ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),) 344LD = $(CROSS_COMPILE)ld.bfd 345else 346LD = $(CROSS_COMPILE)ld 347endif 348CC = $(CROSS_COMPILE)gcc 349CPP = $(CC) -E 350AR = $(CROSS_COMPILE)ar 351NM = $(CROSS_COMPILE)nm 352LDR = $(CROSS_COMPILE)ldr 353STRIP = $(CROSS_COMPILE)strip 354OBJCOPY = $(CROSS_COMPILE)objcopy 355OBJDUMP = $(CROSS_COMPILE)objdump 356AWK = awk 357RANLIB = $(CROSS_COMPILE)RANLIB 358DTC = dtc 359CHECK = sparse 360 361CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ 362 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF) 363 364KBUILD_CPPFLAGS := -D__KERNEL__ 365 366KBUILD_CFLAGS := -Wall -Wstrict-prototypes \ 367 -Wno-format-security \ 368 -fno-builtin -ffreestanding 369KBUILD_AFLAGS := -D__ASSEMBLY__ 370 371# Read UBOOTRELEASE from include/config/uboot.release (if it exists) 372UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null) 373UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) 374 375export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION 376export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR 377export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC 378export CPP AR NM LDR STRIP OBJCOPY OBJDUMP 379export MAKE AWK 380export DTC CHECK CHECKFLAGS 381 382export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS 383export KBUILD_CFLAGS KBUILD_AFLAGS 384 385# When compiling out-of-tree modules, put MODVERDIR in the module 386# tree rather than in the kernel tree. The kernel tree might 387# even be read-only. 388export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions 389 390# Files to ignore in find ... statements 391 392export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ 393 -name CVS -o -name .pc -o -name .hg -o -name .git \) \ 394 -prune -o 395export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ 396 --exclude CVS --exclude .pc --exclude .hg --exclude .git 397 398# =========================================================================== 399# Rules shared between *config targets and build targets 400 401# Basic helpers built in scripts/ 402PHONY += scripts_basic 403scripts_basic: 404 $(Q)$(MAKE) $(build)=scripts/basic 405 $(Q)rm -f .tmp_quiet_recordmcount 406 407# To avoid any implicit rule to kick in, define an empty command. 408scripts/basic/%: scripts_basic ; 409 410PHONY += outputmakefile 411# outputmakefile generates a Makefile in the output directory, if using a 412# separate output directory. This allows convenient use of make in the 413# output directory. 414outputmakefile: 415ifneq ($(KBUILD_SRC),) 416 $(Q)ln -fsn $(srctree) source 417 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ 418 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) 419endif 420 421# To make sure we do not include .config for any of the *config targets 422# catch them early, and hand them over to scripts/kconfig/Makefile 423# It is allowed to specify more targets when calling make, including 424# mixing *config targets and build targets. 425# For example 'make oldconfig all'. 426# Detect when mixed targets is specified, and make a second invocation 427# of make so .config is not included in this case either (for *config). 428 429version_h := include/generated/version_autogenerated.h 430timestamp_h := include/generated/timestamp_autogenerated.h 431 432no-dot-config-targets := clean clobber mrproper distclean \ 433 help %docs check% coccicheck \ 434 ubootversion backup tools-only 435 436config-targets := 0 437mixed-targets := 0 438dot-config := 1 439 440ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) 441 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) 442 dot-config := 0 443 endif 444endif 445 446ifeq ($(KBUILD_EXTMOD),) 447 ifneq ($(filter config %config,$(MAKECMDGOALS)),) 448 config-targets := 1 449 ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) 450 mixed-targets := 1 451 endif 452 endif 453endif 454 455ifeq ($(mixed-targets),1) 456# =========================================================================== 457# We're called with mixed targets (*config and build targets). 458# Handle them one by one. 459 460PHONY += $(MAKECMDGOALS) build-one-by-one 461 462$(MAKECMDGOALS): build-one-by-one 463 @: 464 465build-one-by-one: 466 $(Q)set -e; \ 467 for i in $(MAKECMDGOALS); do \ 468 $(MAKE) -f $(srctree)/Makefile $$i; \ 469 done 470 471else 472ifeq ($(config-targets),1) 473# =========================================================================== 474# *config targets only - make sure prerequisites are updated, and descend 475# in scripts/kconfig to make the *config target 476 477# Read arch specific Makefile to set KBUILD_DEFCONFIG as needed. 478# KBUILD_DEFCONFIG may point out an alternative default configuration 479# used for 'make defconfig' 480 481%_config:: outputmakefile 482 @$(MKCONFIG) -A $(@:_config=) 483 484else 485# =========================================================================== 486# Build targets only - this includes vmlinux, arch specific targets, clean 487# targets and others. In general all targets except *config targets. 488 489# load ARCH, BOARD, and CPU configuration 490-include include/config.mk 491 492ifeq ($(dot-config),1) 493# Read in config 494-include include/autoconf.mk 495-include include/autoconf.mk.dep 496 497# load other configuration 498include $(srctree)/config.mk 499 500ifeq ($(wildcard include/config.mk),) 501$(error "System not configured - see README") 502endif 503 504# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use 505# that (or fail if absent). Otherwise, search for a linker script in a 506# standard location. 507 508ifndef LDSCRIPT 509 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug 510 ifdef CONFIG_SYS_LDSCRIPT 511 # need to strip off double quotes 512 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%) 513 endif 514endif 515 516# If there is no specified link script, we look in a number of places for it 517ifndef LDSCRIPT 518 ifeq ($(CONFIG_NAND_U_BOOT),y) 519 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-nand.lds 520 ifeq ($(wildcard $(LDSCRIPT)),) 521 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-nand.lds 522 endif 523 endif 524 ifeq ($(wildcard $(LDSCRIPT)),) 525 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds 526 endif 527 ifeq ($(wildcard $(LDSCRIPT)),) 528 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds 529 endif 530 ifeq ($(wildcard $(LDSCRIPT)),) 531 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds 532 endif 533endif 534 535else 536 537 538endif # $(dot-config) 539 540KBUILD_CFLAGS += -Os #-fomit-frame-pointer 541 542ifdef BUILD_TAG 543KBUILD_CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"' 544endif 545 546KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 547 548ifeq ($(COMPILER),clang) 549KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,) 550KBUILD_CPPFLAGS += $(call cc-option,-Wno-unknown-warning-option,) 551KBUILD_CFLAGS += $(call cc-disable-warning, unused-variable) 552KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier) 553KBUILD_CFLAGS += $(call cc-disable-warning, gnu) 554# Quiet clang warning: comparison of unsigned expression < 0 is always false 555KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare) 556# CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the 557# source of a reference will be _MergedGlobals and not on of the whitelisted names. 558# See modpost pattern 2 559KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,) 560endif 561 562KBUILD_CFLAGS += -g 563# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 564# option to the assembler. 565KBUILD_AFLAGS += -g 566 567# Report stack usage if supported 568ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y) 569 KBUILD_CFLAGS += -fstack-usage 570endif 571 572KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) 573 574# turn jbsr into jsr for m68k 575ifeq ($(ARCH),m68k) 576ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4) 577KBUILD_AFLAGS += -Wa,-gstabs,-S 578endif 579endif 580 581ifneq ($(CONFIG_SYS_TEXT_BASE),) 582KBUILD_CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE) 583endif 584 585export CONFIG_SYS_TEXT_BASE 586 587# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 588KBUILD_CPPFLAGS += $(KCPPFLAGS) 589KBUILD_AFLAGS += $(KAFLAGS) 590KBUILD_CFLAGS += $(KCFLAGS) 591 592# Use UBOOTINCLUDE when you must reference the include/ directory. 593# Needed to be compatible with the O= option 594UBOOTINCLUDE := \ 595 -Iinclude \ 596 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 597 -I$(srctree)/arch/$(ARCH)/include 598 599NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 600CHECKFLAGS += $(NOSTDINC_FLAGS) 601 602# FIX ME 603cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 604 $(NOSTDINC_FLAGS) 605c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 606 607######################################################################### 608# U-Boot objects....order is important (i.e. start must be first) 609 610head-y := $(CPUDIR)/start.o 611head-$(CONFIG_4xx) += arch/powerpc/cpu/ppc4xx/resetvec.o 612head-$(CONFIG_MPC85xx) += arch/powerpc/cpu/mpc85xx/resetvec.o 613 614HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 615 616libs-y += lib/ 617libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 618libs-y += $(CPUDIR)/ 619ifdef SOC 620libs-y += $(CPUDIR)/$(SOC)/ 621endif 622libs-$(CONFIG_OF_EMBED) += dts/ 623libs-y += arch/$(ARCH)/lib/ 624libs-y += fs/ 625libs-y += net/ 626libs-y += disk/ 627libs-y += drivers/ 628libs-$(CONFIG_DM) += drivers/core/ 629libs-y += drivers/dma/ 630libs-y += drivers/gpio/ 631libs-y += drivers/i2c/ 632libs-y += drivers/input/ 633libs-y += drivers/mmc/ 634libs-y += drivers/mtd/ 635libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/ 636libs-y += drivers/mtd/onenand/ 637libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/ 638libs-y += drivers/mtd/spi/ 639libs-y += drivers/net/ 640libs-y += drivers/net/phy/ 641libs-y += drivers/pci/ 642libs-y += drivers/power/ \ 643 drivers/power/fuel_gauge/ \ 644 drivers/power/mfd/ \ 645 drivers/power/pmic/ \ 646 drivers/power/battery/ 647libs-y += drivers/spi/ 648libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/ 649libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ 650libs-y += drivers/serial/ 651libs-y += drivers/usb/eth/ 652libs-y += drivers/usb/gadget/ 653libs-y += drivers/usb/host/ 654libs-y += drivers/usb/musb/ 655libs-y += drivers/usb/musb-new/ 656libs-y += drivers/usb/phy/ 657libs-y += drivers/usb/ulpi/ 658libs-y += common/ 659libs-y += lib/libfdt/ 660libs-$(CONFIG_API) += api/ 661libs-$(CONFIG_HAS_POST) += post/ 662libs-y += test/ 663libs-y += test/dm/ 664libs-$(CONFIG_DM_DEMO) += drivers/demo/ 665 666ifneq (,$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35 mxs vf610)) 667libs-y += arch/$(ARCH)/imx-common/ 668endif 669 670libs-$(CONFIG_ARM) += arch/arm/cpu/ 671libs-$(CONFIG_PPC) += arch/powerpc/cpu/ 672 673libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 674 675libs-y := $(sort $(libs-y)) 676 677u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 678 679u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 680 681libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 682 683u-boot-init := $(head-y) 684u-boot-main := $(libs-y) 685 686 687# Add GCC lib 688ifdef CONFIG_USE_PRIVATE_LIBGCC 689ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 690PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 691else 692PLATFORM_LIBGCC = -L $(CONFIG_USE_PRIVATE_LIBGCC) -lgcc 693endif 694else 695PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 696endif 697PLATFORM_LIBS += $(PLATFORM_LIBGCC) 698export PLATFORM_LIBS 699 700# Special flags for CPP when processing the linker script. 701# Pass the version down so we can handle backwards compatibility 702# on the fly. 703LDPPFLAGS += \ 704 -include $(srctree)/include/u-boot/u-boot.lds.h \ 705 -DCPUDIR=$(CPUDIR) \ 706 $(shell $(LD) --version | \ 707 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 708 709######################################################################### 710######################################################################### 711 712ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 713BOARD_SIZE_CHECK = \ 714 @actual=`wc -c $@ | awk '{print $$1}'`; \ 715 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \ 716 if test $$actual -gt $$limit; then \ 717 echo "$@ exceeds file size limit:" >&2 ; \ 718 echo " limit: $$limit bytes" >&2 ; \ 719 echo " actual: $$actual bytes" >&2 ; \ 720 echo " excess: $$((actual - limit)) bytes" >&2; \ 721 exit 1; \ 722 fi 723else 724BOARD_SIZE_CHECK = 725endif 726 727# Statically apply RELA-style relocations (currently arm64 only) 728ifneq ($(CONFIG_STATIC_RELA),) 729# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base 730DO_STATIC_RELA = \ 731 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \ 732 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \ 733 tools/relocate-rela $(2) $(3) $$start $$end 734else 735DO_STATIC_RELA = 736endif 737 738# Always append ALL so that arch config.mk's can add custom ones 739ALL-y += u-boot.srec u-boot.bin System.map 740 741ALL-$(CONFIG_NAND_U_BOOT) += u-boot-nand.bin 742ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin 743ifeq ($(CONFIG_SPL_FSL_PBL),y) 744ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 745else 746ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 747endif 748ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin 749ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 750ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 751ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb u-boot-dtb.bin 752ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb 753ifneq ($(CONFIG_SPL_TARGET),) 754ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 755endif 756ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf 757 758# enable combined SPL/u-boot/dtb rules for tegra 759ifneq ($(CONFIG_TEGRA),) 760ifeq ($(CONFIG_SPL),y) 761ifeq ($(CONFIG_OF_SEPARATE),y) 762ALL-y += u-boot-dtb-tegra.bin 763else 764ALL-y += u-boot-nodtb-tegra.bin 765endif 766endif 767endif 768 769LDFLAGS_u-boot += $(LDFLAGS_FINAL) 770ifneq ($(CONFIG_SYS_TEXT_BASE),) 771LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 772endif 773 774quiet_cmd_objcopy = OBJCOPY $@ 775cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 776 777quiet_cmd_mkimage = MKIMAGE $@ 778cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 779 $(if $(KBUILD_VERBOSE:1=), >/dev/null) 780 781quiet_cmd_cat = CAT $@ 782cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 783 784append = cat $(filter-out $< $(PHONY), $^) >> $@ 785 786quiet_cmd_pad_cat = CAT $@ 787cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@ 788 789all: $(ALL-y) 790 791PHONY += dtbs 792dtbs dts/dt.dtb: checkdtc u-boot 793 $(Q)$(MAKE) $(build)=dts dtbs 794 795u-boot-dtb.bin: u-boot.bin dts/dt.dtb FORCE 796 $(call if_changed,cat) 797 798%.imx: %.bin 799 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 800 801quiet_cmd_copy = COPY $@ 802 cmd_copy = cp $< $@ 803 804u-boot.dtb: dts/dt.dtb 805 $(call cmd,copy) 806 807OBJCOPYFLAGS_u-boot.hex := -O ihex 808 809OBJCOPYFLAGS_u-boot.srec := -O srec 810 811u-boot.hex u-boot.srec: u-boot FORCE 812 $(call if_changed,objcopy) 813 814OBJCOPYFLAGS_u-boot.bin := -O binary 815 816u-boot.bin: u-boot FORCE 817 $(call if_changed,objcopy) 818 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE)) 819 $(BOARD_SIZE_CHECK) 820 821u-boot.ldr: u-boot 822 $(CREATE_LDR_ENV) 823 $(LDR) -T $(CONFIG_BFIN_CPU) -c $@ $< $(LDR_FLAGS) 824 $(BOARD_SIZE_CHECK) 825 826OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 827 828OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 829 830u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 831 $(call if_changed,objcopy) 832 833# 834# U-Boot entry point, needed for booting of full-blown U-Boot 835# from the SPL U-Boot version. 836# 837ifndef CONFIG_SYS_UBOOT_START 838CONFIG_SYS_UBOOT_START := 0 839endif 840 841MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 842 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 843 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 844 845MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 846 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 847 848MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 849 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 850 851u-boot.img u-boot.kwb u-boot.pbl: u-boot.bin FORCE 852 $(call if_changed,mkimage) 853 854u-boot.sha1: u-boot.bin 855 tools/ubsha1 u-boot.bin 856 857u-boot.dis: u-boot 858 $(OBJDUMP) -d $< > $@ 859 860ifdef CONFIG_TPL 861SPL_PAYLOAD := tpl/u-boot-with-tpl.bin 862else 863SPL_PAYLOAD := u-boot.bin 864endif 865 866OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 867 --pad-to=$(CONFIG_SPL_PAD_TO) 868u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE 869 $(call if_changed,pad_cat) 870 871OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 872 --pad-to=$(CONFIG_TPL_PAD_TO) 873tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 874 $(call if_changed,pad_cat) 875 876SPL: spl/u-boot-spl.bin FORCE 877 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 878 879u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE 880 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 881 882MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE) 883 884u-boot.ubl: u-boot-with-spl.bin FORCE 885 $(call if_changed,mkimage) 886 887MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \ 888 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ 889 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 890spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 891 $(call if_changed,mkimage) 892 893OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 894u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 895 $(call if_changed,pad_cat) 896 897u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 898 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 899u-boot.sb: u-boot.bin spl/u-boot-spl.bin 900 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 901 902# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL. 903# Both images are created using mkimage (crc etc), so that the ROM 904# bootloader can check its integrity. Padding needs to be done to the 905# SPL image (with mkimage header) and not the binary. Otherwise the resulting image 906# which is loaded/copied by the ROM bootloader to SRAM doesn't fit. 907# The resulting image containing both U-Boot images is called u-boot.spr 908MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 909 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 910spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 911 $(call if_changed,mkimage) 912 913OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 914 --gap-fill=0xff 915u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE 916 $(call if_changed,pad_cat) 917 918MKIMAGEFLAGS_u-boot-spl.gph = -A $(ARCH) -T gpimage -C none \ 919 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n SPL 920spl/u-boot-spl.gph: spl/u-boot-spl.bin FORCE 921 $(call if_changed,mkimage) 922 923OBJCOPYFLAGS_u-boot-spi.gph = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 924 --gap-fill=0 925u-boot-spi.gph: spl/u-boot-spl.gph u-boot.img FORCE 926 $(call if_changed,pad_cat) 927 928ifneq ($(CONFIG_TEGRA),) 929OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 930u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot.bin FORCE 931 $(call if_changed,pad_cat) 932 933ifeq ($(CONFIG_OF_SEPARATE),y) 934u-boot-dtb-tegra.bin: u-boot-nodtb-tegra.bin dts/dt.dtb FORCE 935 $(call if_changed,cat) 936endif 937endif 938 939u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 940 $(call if_changed,cat) 941 942#Add a target to create boot binary having SPL binary in PBI format 943#concatenated with u-boot binary. It is need by PowerPC SoC having 944#internal SRAM <= 512KB. 945MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 946 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 947 948spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 949 $(call if_changed,mkimage) 950 951OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 952 --gap-fill=0xff 953 954u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl u-boot.bin FORCE 955 $(call if_changed,pad_cat) 956 957# PPC4xx needs the SPL at the end of the image, since the reset vector 958# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target 959# and need to introduce a new build target with the full blown U-Boot 960# at the start padded up to the start of the SPL image. And then concat 961# the SPL image to the end. 962 963OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ 964 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff 965u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE 966 $(call if_changed,pad_cat) 967 968# Create a new ELF from a raw binary file. This is useful for arm64 969# where static relocation needs to be performed on the raw binary, 970# but certain simulators only accept an ELF file (but don't do the 971# relocation). 972# FIXME refactor dts/Makefile to share target/arch detection 973u-boot.elf: u-boot.bin 974 @$(OBJCOPY) -B aarch64 -I binary -O elf64-littleaarch64 \ 975 $< u-boot-elf.o 976 @$(LD) u-boot-elf.o -o $@ \ 977 --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \ 978 -Ttext=$(CONFIG_SYS_TEXT_BASE) 979 980# Rule to link u-boot 981# May be overridden by arch/$(ARCH)/config.mk 982quiet_cmd_u-boot__ ?= LD $@ 983 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 984 -T u-boot.lds $(u-boot-init) \ 985 --start-group $(u-boot-main) --end-group \ 986 $(PLATFORM_LIBS) -Map u-boot.map 987 988u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds 989 $(call if_changed,u-boot__) 990ifeq ($(CONFIG_KALLSYMS),y) 991 smap=`$(call SYSTEM_MAP,u-boot) | \ 992 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 993 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 994 -c $(srctree)/common/system_map.c -o common/system_map.o 995 $(call cmd,u-boot__) common/system_map.o 996endif 997 998# The actual objects are generated when descending, 999# make sure no implicit rule kicks in 1000$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1001 1002# Handle descending into subdirectories listed in $(vmlinux-dirs) 1003# Preset locale variables to speed up the build process. Limit locale 1004# tweaks to this spot to avoid wrong language settings when running 1005# make menuconfig etc. 1006# Error messages still appears in the original language 1007 1008PHONY += $(u-boot-dirs) 1009$(u-boot-dirs): prepare scripts 1010 $(Q)$(MAKE) $(build)=$@ 1011 1012tools: prepare 1013# The "tools" are needed early 1014$(filter-out tools, $(u-boot-dirs)): tools 1015# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1016# is "yes"), so compile examples after U-Boot is compiled. 1017examples: $(filter-out examples, $(u-boot-dirs)) 1018 1019define filechk_uboot.release 1020 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1021endef 1022 1023# Store (new) UBOOTRELEASE string in include/config/uboot.release 1024include/config/uboot.release: Makefile FORCE 1025 $(call filechk,uboot.release) 1026 1027 1028# Things we need to do before we recursively start building the kernel 1029# or the modules are listed in "prepare". 1030# A multi level approach is used. prepareN is processed before prepareN-1. 1031# archprepare is used in arch Makefiles and when processed asm symlink, 1032# version.h and scripts_basic is processed / created. 1033 1034# Listed in dependency order 1035PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1036 1037# prepare3 is used to check if we are building in a separate output directory, 1038# and if so do: 1039# 1) Check that make has not been executed in the kernel src $(srctree) 1040prepare3: include/config/uboot.release 1041ifneq ($(KBUILD_SRC),) 1042 @$(kecho) ' Using $(srctree) as source for u-boot' 1043 $(Q)if [ -f $(srctree)/include/config.mk ]; then \ 1044 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1045 echo >&2 " in the '$(srctree)' directory.";\ 1046 /bin/false; \ 1047 fi; 1048endif 1049 1050# prepare2 creates a makefile if using a separate output directory 1051prepare2: prepare3 outputmakefile 1052 1053prepare1: prepare2 $(version_h) $(timestamp_h) 1054ifeq ($(__HAVE_ARCH_GENERIC_BOARD),) 1055ifeq ($(CONFIG_SYS_GENERIC_BOARD),y) 1056 @echo >&2 " Your architecture does not support generic board." 1057 @echo >&2 " Please undefine CONFIG_SYS_GENERIC_BOARD in your board config file." 1058 @/bin/false 1059endif 1060endif 1061ifeq ($(wildcard $(LDSCRIPT)),) 1062 @echo >&2 " Could not find linker script." 1063 @/bin/false 1064endif 1065 1066archprepare: prepare1 scripts_basic 1067 1068prepare0: archprepare FORCE 1069 $(Q)$(MAKE) $(build)=. 1070 1071# All the preparing.. 1072prepare: prepare0 1073 1074# Generate some files 1075# --------------------------------------------------------------------------- 1076 1077define filechk_version.h 1078 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1079 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1080 echo \#define CC_VERSION_STRING \"$$($(CC) --version | head -n 1)\"; \ 1081 echo \#define LD_VERSION_STRING \"$$($(LD) --version | head -n 1)\"; ) 1082endef 1083 1084define filechk_timestamp.h 1085 (LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1086 LC_ALL=C date +'#define U_BOOT_TIME "%T"') 1087endef 1088 1089$(version_h): include/config/uboot.release FORCE 1090 $(call filechk,version.h) 1091 1092$(timestamp_h): $(srctree)/Makefile FORCE 1093 $(call filechk,timestamp.h) 1094 1095# 1096# Auto-generate the autoconf.mk file (which is included by all makefiles) 1097# 1098# This target actually generates 2 files; autoconf.mk and autoconf.mk.dep. 1099# the dep file is only include in this top level makefile to determine when 1100# to regenerate the autoconf.mk file. 1101 1102quiet_cmd_autoconf_dep = GEN $@ 1103 cmd_autoconf_dep = $(CC) -x c -DDO_DEPS_ONLY -M $(c_flags) \ 1104 -MQ include/autoconf.mk $(srctree)/include/common.h > $@ || rm $@ 1105 1106include/autoconf.mk.dep: include/config.h include/common.h 1107 $(call cmd,autoconf_dep) 1108 1109quiet_cmd_autoconf = GEN $@ 1110 cmd_autoconf = \ 1111 $(CPP) $(c_flags) -DDO_DEPS_ONLY -dM $(srctree)/include/common.h > $@.tmp && \ 1112 sed -n -f $(srctree)/tools/scripts/define2mk.sed $@.tmp > $@; \ 1113 rm $@.tmp 1114 1115include/autoconf.mk: include/config.h 1116 $(call cmd,autoconf) 1117 1118# --------------------------------------------------------------------------- 1119 1120PHONY += depend dep 1121depend dep: 1122 @echo '*** Warning: make $@ is unnecessary now.' 1123 1124# --------------------------------------------------------------------------- 1125quiet_cmd_cpp_lds = LDS $@ 1126cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 1127 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 1128 1129u-boot.lds: $(LDSCRIPT) prepare FORCE 1130 $(call if_changed_dep,cpp_lds) 1131 1132PHONY += nand_spl 1133nand_spl: prepare 1134 $(Q)$(MAKE) $(build)=nand_spl/board/$(BOARDDIR) all 1135 @echo >&2 1136 @echo >&2 "==================== WARNING =====================" 1137 @echo >&2 "nand_spl will not be included in v2014.07 release." 1138 @echo >&2 "Please switch over to SPL." 1139 @echo >&2 "Otherwise, this board will be removed." 1140 @echo >&2 "==================================================" 1141 @echo >&2 1142 1143nand_spl/u-boot-spl-16k.bin: nand_spl 1144 @: 1145 1146u-boot-nand.bin: nand_spl/u-boot-spl-16k.bin u-boot.bin FORCE 1147 $(call if_changed,cat) 1148 1149spl/u-boot-spl.bin: spl/u-boot-spl 1150 @: 1151spl/u-boot-spl: tools prepare 1152 $(Q)$(MAKE) obj=spl -f $(srctree)/spl/Makefile all 1153 1154tpl/u-boot-tpl.bin: tools prepare 1155 $(Q)$(MAKE) obj=tpl -f $(srctree)/spl/Makefile all CONFIG_TPL_BUILD=y 1156 1157TAG_SUBDIRS := $(u-boot-dirs) include 1158 1159FIND := find 1160FINDFLAGS := -L 1161 1162tags ctags: 1163 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1164 -name '*.[chS]' -print` 1165 1166etags: 1167 etags -a -o $(obj)etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1168 -name '*.[chS]' -print` 1169cscope: 1170 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 1171 cscope.files 1172 cscope -b -q -k 1173 1174SYSTEM_MAP = \ 1175 $(NM) $1 | \ 1176 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 1177 LC_ALL=C sort 1178System.map: u-boot 1179 @$(call SYSTEM_MAP,$<) > $@ 1180 1181checkdtc: 1182 @if test $(call dtc-version) -lt 0104; then \ 1183 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \ 1184 false; \ 1185 fi 1186 1187######################################################################### 1188 1189# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 1190# R_AARCH64_RELATIVE (64-bit). 1191checkarmreloc: u-boot 1192 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 1193 grep R_A | sort -u`"; \ 1194 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 1195 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 1196 echo "$< contains unexpected relocations: $$RELOC"; \ 1197 false; \ 1198 fi 1199 1200env: scripts_basic 1201 $(Q)$(MAKE) $(build)=tools/$@ 1202 1203tools-only: scripts_basic $(version_h) $(timestamp_h) 1204 $(Q)$(MAKE) $(build)=tools 1205 1206tools-all: export HOST_TOOLS_ALL=y 1207tools-all: env tools ; 1208 1209cross_tools: export CROSS_BUILD_TOOLS=y 1210cross_tools: tools ; 1211 1212.PHONY : CHANGELOG 1213CHANGELOG: 1214 git log --no-merges U-Boot-1_1_5.. | \ 1215 unexpand -a | sed -e 's/\s\s*$$//' > $@ 1216 1217include/license.h: tools/bin2header COPYING 1218 cat COPYING | gzip -9 -c | ./tools/bin2header license_gzip > include/license.h 1219######################################################################### 1220 1221### 1222# Cleaning is done on three levels. 1223# make clean Delete most generated files 1224# Leave enough to build external modules 1225# make mrproper Delete the current configuration, and all generated files 1226# make distclean Remove editor backup files, patch leftover files and the like 1227 1228# Directories & files removed with 'make clean' 1229CLEAN_DIRS += $(MODVERDIR) 1230CLEAN_FILES += u-boot.lds include/bmp_logo.h include/bmp_logo_data.h \ 1231 include/autoconf.mk* include/spl-autoconf.mk \ 1232 include/tpl-autoconf.mk 1233 1234# Directories & files removed with 'make clobber' 1235CLOBBER_DIRS += $(patsubst %,spl/%, $(filter-out Makefile, \ 1236 $(shell ls -1 spl 2>/dev/null))) \ 1237 tpl 1238CLOBBER_FILES += u-boot* MLO* SPL System.map nand_spl/u-boot* 1239 1240# Directories & files removed with 'make mrproper' 1241MRPROPER_DIRS += include/config include/generated \ 1242 .tmp_objdiff 1243MRPROPER_FILES += .config .config.old \ 1244 tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \ 1245 include/config.h include/config.mk 1246 1247# clean - Delete most, but leave enough to build external modules 1248# 1249clean: rm-dirs := $(CLEAN_DIRS) 1250clean: rm-files := $(CLEAN_FILES) 1251 1252clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 1253 1254clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook) 1255 1256PHONY += $(clean-dirs) clean archclean 1257$(clean-dirs): 1258 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1259 1260# TODO: Do not use *.cfgtmp 1261clean: $(clean-dirs) 1262 $(call cmd,rmdirs) 1263 $(call cmd,rmfiles) 1264 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1265 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 1266 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \ 1267 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 1268 -o -name '*.symtypes' -o -name 'modules.order' \ 1269 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 1270 -o -name '*.gcno' \) -type f -print | xargs rm -f 1271 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1272 -path './nand_spl/*' -type l -print | xargs rm -f 1273 1274# clobber 1275# 1276clobber: rm-dirs := $(CLOBBER_DIRS) 1277clobber: rm-files := $(CLOBBER_FILES) 1278 1279PHONY += clobber 1280 1281clobber: clean 1282 $(call cmd,rmdirs) 1283 $(call cmd,rmfiles) 1284 1285# mrproper - Delete all generated files, including .config 1286# 1287mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 1288mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 1289mrproper-dirs := $(addprefix _mrproper_,scripts) 1290 1291PHONY += $(mrproper-dirs) mrproper archmrproper 1292$(mrproper-dirs): 1293 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 1294 1295mrproper: clobber $(mrproper-dirs) 1296 $(call cmd,rmdirs) 1297 $(call cmd,rmfiles) 1298 @rm -f arch/*/include/asm/arch arch/*/include/asm/proc 1299 1300# distclean 1301# 1302PHONY += distclean 1303 1304distclean: mrproper 1305 @find $(srctree) $(RCS_FIND_IGNORE) \ 1306 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 1307 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 1308 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 1309 -o -name '*.pyc' \) \ 1310 -type f -print | xargs rm -f 1311 1312backup: 1313 F=`basename $(srctree)` ; cd .. ; \ 1314 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 1315 1316help: 1317 @echo 'Cleaning targets:' 1318 @echo ' clean - Remove most generated files but keep the config and' 1319 @echo ' necessities for testing u-boot' 1320 @echo ' clobber - Remove most generated files but keep the config' 1321 @echo ' mrproper - Remove all generated files + config + various backup files' 1322 @echo ' distclean - mrproper + remove editor backup and patch files' 1323 @echo '' 1324# uncomment after adding Kconfig feature 1325# @echo 'Configuration targets:' 1326# @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 1327# @echo '' 1328 @echo 'Other generic targets:' 1329 @echo ' all - Build all necessary images depending on configuration' 1330 @echo ' u-boot - Build the bare u-boot' 1331 @echo ' dir/ - Build all files in dir and below' 1332 @echo ' dir/file.[oisS] - Build specified target only' 1333 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 1334 @echo ' (requires a recent binutils and recent build (System.map))' 1335 @echo ' tags/TAGS - Generate tags file for editors' 1336 @echo ' cscope - Generate cscope index' 1337 @echo ' ubootrelease - Output the release version string' 1338 @echo ' ubootversion - Output the version stored in Makefile' 1339 @echo '' 1340 @echo 'Static analysers' 1341 @echo ' checkstack - Generate a list of stack hogs' 1342 @echo '' 1343 @echo 'Documentation targets:' 1344 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp 1345 @echo '' 1346 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 1347 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 1348 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 1349 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 1350 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 1351 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 1352 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 1353 @echo ' 1: warnings which may be relevant and do not occur too often' 1354 @echo ' 2: warnings which occur quite often but may still be relevant' 1355 @echo ' 3: more obscure warnings, can most likely be ignored' 1356 @echo ' Multiple levels can be combined with W=12 or W=123' 1357 @echo '' 1358 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 1359 @echo 'For further info see the ./README file' 1360 1361 1362# Documentation targets 1363# --------------------------------------------------------------------------- 1364%docs: scripts_basic FORCE 1365 $(Q)$(MAKE) $(build)=scripts build_docproc 1366 $(Q)$(MAKE) $(build)=doc/DocBook $@ 1367 1368# Dummies... 1369PHONY += prepare scripts 1370prepare: ; 1371scripts: ; 1372 1373endif #ifeq ($(config-targets),1) 1374endif #ifeq ($(mixed-targets),1) 1375 1376PHONY += checkstack ubootrelease ubootversion 1377 1378checkstack: 1379 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 1380 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 1381 1382ubootrelease: 1383 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1384 1385ubootversion: 1386 @echo $(UBOOTVERSION) 1387 1388# Single targets 1389# --------------------------------------------------------------------------- 1390# Single targets are compatible with: 1391# - build with mixed source and output 1392# - build with separate output dir 'make O=...' 1393# - external modules 1394# 1395# target-dir => where to store outputfile 1396# build-dir => directory in kernel source tree to use 1397 1398ifeq ($(KBUILD_EXTMOD),) 1399 build-dir = $(patsubst %/,%,$(dir $@)) 1400 target-dir = $(dir $@) 1401else 1402 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 1403 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 1404 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 1405endif 1406 1407%.s: %.c prepare scripts FORCE 1408 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1409%.i: %.c prepare scripts FORCE 1410 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1411%.o: %.c prepare scripts FORCE 1412 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1413%.lst: %.c prepare scripts FORCE 1414 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1415%.s: %.S prepare scripts FORCE 1416 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1417%.o: %.S prepare scripts FORCE 1418 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1419%.symtypes: %.c prepare scripts FORCE 1420 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1421 1422# Modules 1423/: prepare scripts FORCE 1424 $(cmd_crmodverdir) 1425 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1426 $(build)=$(build-dir) 1427%/: prepare scripts FORCE 1428 $(cmd_crmodverdir) 1429 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1430 $(build)=$(build-dir) 1431%.ko: prepare scripts FORCE 1432 $(cmd_crmodverdir) 1433 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1434 $(build)=$(build-dir) $(@:.ko=.o) 1435 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1436 1437# FIXME Should go into a make.lib or something 1438# =========================================================================== 1439 1440quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 1441 cmd_rmdirs = rm -rf $(rm-dirs) 1442 1443quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 1444 cmd_rmfiles = rm -f $(rm-files) 1445 1446# read all saved command lines 1447 1448targets := $(wildcard $(sort $(targets))) 1449cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 1450 1451ifneq ($(cmd_files),) 1452 $(cmd_files): ; # Do not try to update included dependency files 1453 include $(cmd_files) 1454endif 1455 1456# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir 1457# Usage: 1458# $(Q)$(MAKE) $(clean)=dir 1459clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj 1460 1461endif # skip-makefile 1462 1463PHONY += FORCE 1464FORCE: 1465 1466# Declare the contents of the .PHONY variable as phony. We keep that 1467# information in a variable so we can use it in if_changed and friends. 1468.PHONY: $(PHONY) 1469