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 = 07 10SUBLEVEL = 11EXTRAVERSION = -rc1 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 580 581# Prohibit date/time macros, which would make the build non-deterministic 582KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 583 584ifneq ($(CONFIG_SYS_TEXT_BASE),) 585KBUILD_CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE) 586endif 587 588export CONFIG_SYS_TEXT_BASE 589 590# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 591KBUILD_CPPFLAGS += $(KCPPFLAGS) 592KBUILD_AFLAGS += $(KAFLAGS) 593KBUILD_CFLAGS += $(KCFLAGS) 594 595# Use UBOOTINCLUDE when you must reference the include/ directory. 596# Needed to be compatible with the O= option 597UBOOTINCLUDE := \ 598 -Iinclude \ 599 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 600 -I$(srctree)/arch/$(ARCH)/include 601 602NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 603CHECKFLAGS += $(NOSTDINC_FLAGS) 604 605# FIX ME 606cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 607 $(NOSTDINC_FLAGS) 608c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 609 610######################################################################### 611# U-Boot objects....order is important (i.e. start must be first) 612 613head-y := $(CPUDIR)/start.o 614head-$(CONFIG_4xx) += arch/powerpc/cpu/ppc4xx/resetvec.o 615head-$(CONFIG_MPC85xx) += arch/powerpc/cpu/mpc85xx/resetvec.o 616 617HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 618 619libs-y += lib/ 620libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 621libs-y += $(CPUDIR)/ 622ifdef SOC 623libs-y += $(CPUDIR)/$(SOC)/ 624endif 625libs-$(CONFIG_OF_EMBED) += dts/ 626libs-y += arch/$(ARCH)/lib/ 627libs-y += fs/ 628libs-y += net/ 629libs-y += disk/ 630libs-y += drivers/ 631libs-$(CONFIG_DM) += drivers/core/ 632libs-y += drivers/dma/ 633libs-y += drivers/gpio/ 634libs-y += drivers/i2c/ 635libs-y += drivers/input/ 636libs-y += drivers/mmc/ 637libs-y += drivers/mtd/ 638libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/ 639libs-y += drivers/mtd/onenand/ 640libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/ 641libs-y += drivers/mtd/spi/ 642libs-y += drivers/net/ 643libs-y += drivers/net/phy/ 644libs-y += drivers/pci/ 645libs-y += drivers/power/ \ 646 drivers/power/fuel_gauge/ \ 647 drivers/power/mfd/ \ 648 drivers/power/pmic/ \ 649 drivers/power/battery/ 650libs-y += drivers/spi/ 651libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/ 652libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ 653libs-y += drivers/serial/ 654libs-y += drivers/usb/eth/ 655libs-y += drivers/usb/gadget/ 656libs-y += drivers/usb/host/ 657libs-y += drivers/usb/musb/ 658libs-y += drivers/usb/musb-new/ 659libs-y += drivers/usb/phy/ 660libs-y += drivers/usb/ulpi/ 661libs-y += common/ 662libs-y += lib/libfdt/ 663libs-$(CONFIG_API) += api/ 664libs-$(CONFIG_HAS_POST) += post/ 665libs-y += test/ 666libs-y += test/dm/ 667libs-$(CONFIG_DM_DEMO) += drivers/demo/ 668 669ifneq (,$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35 mxs vf610)) 670libs-y += arch/$(ARCH)/imx-common/ 671endif 672 673libs-$(CONFIG_ARM) += arch/arm/cpu/ 674libs-$(CONFIG_PPC) += arch/powerpc/cpu/ 675 676libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 677 678libs-y := $(sort $(libs-y)) 679 680u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 681 682u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 683 684libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 685 686u-boot-init := $(head-y) 687u-boot-main := $(libs-y) 688 689 690# Add GCC lib 691ifdef CONFIG_USE_PRIVATE_LIBGCC 692ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 693PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 694else 695PLATFORM_LIBGCC = -L $(CONFIG_USE_PRIVATE_LIBGCC) -lgcc 696endif 697else 698PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 699endif 700PLATFORM_LIBS += $(PLATFORM_LIBGCC) 701export PLATFORM_LIBS 702export PLATFORM_LIBGCC 703 704# Special flags for CPP when processing the linker script. 705# Pass the version down so we can handle backwards compatibility 706# on the fly. 707LDPPFLAGS += \ 708 -include $(srctree)/include/u-boot/u-boot.lds.h \ 709 -DCPUDIR=$(CPUDIR) \ 710 $(shell $(LD) --version | \ 711 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 712 713######################################################################### 714######################################################################### 715 716ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 717BOARD_SIZE_CHECK = \ 718 @actual=`wc -c $@ | awk '{print $$1}'`; \ 719 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \ 720 if test $$actual -gt $$limit; then \ 721 echo "$@ exceeds file size limit:" >&2 ; \ 722 echo " limit: $$limit bytes" >&2 ; \ 723 echo " actual: $$actual bytes" >&2 ; \ 724 echo " excess: $$((actual - limit)) bytes" >&2; \ 725 exit 1; \ 726 fi 727else 728BOARD_SIZE_CHECK = 729endif 730 731# Statically apply RELA-style relocations (currently arm64 only) 732ifneq ($(CONFIG_STATIC_RELA),) 733# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base 734DO_STATIC_RELA = \ 735 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \ 736 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \ 737 tools/relocate-rela $(2) $(3) $$start $$end 738else 739DO_STATIC_RELA = 740endif 741 742# Always append ALL so that arch config.mk's can add custom ones 743ALL-y += u-boot.srec u-boot.bin System.map 744 745ALL-$(CONFIG_NAND_U_BOOT) += u-boot-nand.bin 746ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin 747ifeq ($(CONFIG_SPL_FSL_PBL),y) 748ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 749else 750ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 751endif 752ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin 753ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 754ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 755ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb u-boot-dtb.bin 756ifeq ($(CONFIG_SPL_FRAMEWORK),y) 757ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 758endif 759ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb 760ifneq ($(CONFIG_SPL_TARGET),) 761ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 762endif 763ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf 764 765# enable combined SPL/u-boot/dtb rules for tegra 766ifneq ($(CONFIG_TEGRA),) 767ifeq ($(CONFIG_SPL),y) 768ifeq ($(CONFIG_OF_SEPARATE),y) 769ALL-y += u-boot-dtb-tegra.bin 770else 771ALL-y += u-boot-nodtb-tegra.bin 772endif 773endif 774endif 775 776LDFLAGS_u-boot += $(LDFLAGS_FINAL) 777ifneq ($(CONFIG_SYS_TEXT_BASE),) 778LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 779endif 780 781quiet_cmd_objcopy = OBJCOPY $@ 782cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 783 784quiet_cmd_mkimage = MKIMAGE $@ 785cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 786 $(if $(KBUILD_VERBOSE:1=), >/dev/null) 787 788quiet_cmd_cat = CAT $@ 789cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 790 791append = cat $(filter-out $< $(PHONY), $^) >> $@ 792 793quiet_cmd_pad_cat = CAT $@ 794cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@ 795 796all: $(ALL-y) 797 798PHONY += dtbs 799dtbs dts/dt.dtb: checkdtc u-boot 800 $(Q)$(MAKE) $(build)=dts dtbs 801 802u-boot-dtb.bin: u-boot.bin dts/dt.dtb FORCE 803 $(call if_changed,cat) 804 805%.imx: %.bin 806 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 807 808quiet_cmd_copy = COPY $@ 809 cmd_copy = cp $< $@ 810 811u-boot.dtb: dts/dt.dtb 812 $(call cmd,copy) 813 814OBJCOPYFLAGS_u-boot.hex := -O ihex 815 816OBJCOPYFLAGS_u-boot.srec := -O srec 817 818u-boot.hex u-boot.srec: u-boot FORCE 819 $(call if_changed,objcopy) 820 821OBJCOPYFLAGS_u-boot.bin := -O binary 822 823u-boot.bin: u-boot FORCE 824 $(call if_changed,objcopy) 825 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE)) 826 $(BOARD_SIZE_CHECK) 827 828u-boot.ldr: u-boot 829 $(CREATE_LDR_ENV) 830 $(LDR) -T $(CONFIG_BFIN_CPU) -c $@ $< $(LDR_FLAGS) 831 $(BOARD_SIZE_CHECK) 832 833OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 834 835OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 836 837u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 838 $(call if_changed,objcopy) 839 840# 841# U-Boot entry point, needed for booting of full-blown U-Boot 842# from the SPL U-Boot version. 843# 844ifndef CONFIG_SYS_UBOOT_START 845CONFIG_SYS_UBOOT_START := 0 846endif 847 848MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 849 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 850 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 851 852MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 853 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 854 855MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 856 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 857 858u-boot.img u-boot.kwb u-boot.pbl: u-boot.bin FORCE 859 $(call if_changed,mkimage) 860 861MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 862 863u-boot-dtb.img: u-boot-dtb.bin FORCE 864 $(call if_changed,mkimage) 865 866u-boot.sha1: u-boot.bin 867 tools/ubsha1 u-boot.bin 868 869u-boot.dis: u-boot 870 $(OBJDUMP) -d $< > $@ 871 872ifdef CONFIG_TPL 873SPL_PAYLOAD := tpl/u-boot-with-tpl.bin 874else 875SPL_PAYLOAD := u-boot.bin 876endif 877 878OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 879 --pad-to=$(CONFIG_SPL_PAD_TO) 880u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE 881 $(call if_changed,pad_cat) 882 883OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 884 --pad-to=$(CONFIG_TPL_PAD_TO) 885tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 886 $(call if_changed,pad_cat) 887 888SPL: spl/u-boot-spl.bin FORCE 889 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 890 891u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE 892 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 893 894MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE) 895 896u-boot.ubl: u-boot-with-spl.bin FORCE 897 $(call if_changed,mkimage) 898 899MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \ 900 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ 901 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 902spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 903 $(call if_changed,mkimage) 904 905OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 906u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 907 $(call if_changed,pad_cat) 908 909u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 910 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 911u-boot.sb: u-boot.bin spl/u-boot-spl.bin 912 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 913 914# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL. 915# Both images are created using mkimage (crc etc), so that the ROM 916# bootloader can check its integrity. Padding needs to be done to the 917# SPL image (with mkimage header) and not the binary. Otherwise the resulting image 918# which is loaded/copied by the ROM bootloader to SRAM doesn't fit. 919# The resulting image containing both U-Boot images is called u-boot.spr 920MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 921 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 922spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 923 $(call if_changed,mkimage) 924 925OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 926 --gap-fill=0xff 927u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE 928 $(call if_changed,pad_cat) 929 930MKIMAGEFLAGS_u-boot-spl.gph = -A $(ARCH) -T gpimage -C none \ 931 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n SPL 932spl/u-boot-spl.gph: spl/u-boot-spl.bin FORCE 933 $(call if_changed,mkimage) 934 935OBJCOPYFLAGS_u-boot-spi.gph = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 936 --gap-fill=0 937u-boot-spi.gph: spl/u-boot-spl.gph u-boot.img FORCE 938 $(call if_changed,pad_cat) 939 940ifneq ($(CONFIG_TEGRA),) 941OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 942u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot.bin FORCE 943 $(call if_changed,pad_cat) 944 945ifeq ($(CONFIG_OF_SEPARATE),y) 946u-boot-dtb-tegra.bin: u-boot-nodtb-tegra.bin dts/dt.dtb FORCE 947 $(call if_changed,cat) 948endif 949endif 950 951u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 952 $(call if_changed,cat) 953 954#Add a target to create boot binary having SPL binary in PBI format 955#concatenated with u-boot binary. It is need by PowerPC SoC having 956#internal SRAM <= 512KB. 957MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 958 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 959 960spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 961 $(call if_changed,mkimage) 962 963OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 964 --gap-fill=0xff 965 966u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl u-boot.bin FORCE 967 $(call if_changed,pad_cat) 968 969# PPC4xx needs the SPL at the end of the image, since the reset vector 970# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target 971# and need to introduce a new build target with the full blown U-Boot 972# at the start padded up to the start of the SPL image. And then concat 973# the SPL image to the end. 974 975OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ 976 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff 977u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE 978 $(call if_changed,pad_cat) 979 980# Create a new ELF from a raw binary file. This is useful for arm64 981# where static relocation needs to be performed on the raw binary, 982# but certain simulators only accept an ELF file (but don't do the 983# relocation). 984# FIXME refactor dts/Makefile to share target/arch detection 985u-boot.elf: u-boot.bin 986 @$(OBJCOPY) -B aarch64 -I binary -O elf64-littleaarch64 \ 987 $< u-boot-elf.o 988 @$(LD) u-boot-elf.o -o $@ \ 989 --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \ 990 -Ttext=$(CONFIG_SYS_TEXT_BASE) 991 992# Rule to link u-boot 993# May be overridden by arch/$(ARCH)/config.mk 994quiet_cmd_u-boot__ ?= LD $@ 995 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 996 -T u-boot.lds $(u-boot-init) \ 997 --start-group $(u-boot-main) --end-group \ 998 $(PLATFORM_LIBS) -Map u-boot.map 999 1000u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds 1001 $(call if_changed,u-boot__) 1002ifeq ($(CONFIG_KALLSYMS),y) 1003 smap=`$(call SYSTEM_MAP,u-boot) | \ 1004 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1005 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1006 -c $(srctree)/common/system_map.c -o common/system_map.o 1007 $(call cmd,u-boot__) common/system_map.o 1008endif 1009 1010# The actual objects are generated when descending, 1011# make sure no implicit rule kicks in 1012$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1013 1014# Handle descending into subdirectories listed in $(vmlinux-dirs) 1015# Preset locale variables to speed up the build process. Limit locale 1016# tweaks to this spot to avoid wrong language settings when running 1017# make menuconfig etc. 1018# Error messages still appears in the original language 1019 1020PHONY += $(u-boot-dirs) 1021$(u-boot-dirs): prepare scripts 1022 $(Q)$(MAKE) $(build)=$@ 1023 1024tools: prepare 1025# The "tools" are needed early 1026$(filter-out tools, $(u-boot-dirs)): tools 1027# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1028# is "yes"), so compile examples after U-Boot is compiled. 1029examples: $(filter-out examples, $(u-boot-dirs)) 1030 1031define filechk_uboot.release 1032 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1033endef 1034 1035# Store (new) UBOOTRELEASE string in include/config/uboot.release 1036include/config/uboot.release: Makefile FORCE 1037 $(call filechk,uboot.release) 1038 1039 1040# Things we need to do before we recursively start building the kernel 1041# or the modules are listed in "prepare". 1042# A multi level approach is used. prepareN is processed before prepareN-1. 1043# archprepare is used in arch Makefiles and when processed asm symlink, 1044# version.h and scripts_basic is processed / created. 1045 1046# Listed in dependency order 1047PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1048 1049# prepare3 is used to check if we are building in a separate output directory, 1050# and if so do: 1051# 1) Check that make has not been executed in the kernel src $(srctree) 1052prepare3: include/config/uboot.release 1053ifneq ($(KBUILD_SRC),) 1054 @$(kecho) ' Using $(srctree) as source for u-boot' 1055 $(Q)if [ -f $(srctree)/include/config.mk ]; then \ 1056 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1057 echo >&2 " in the '$(srctree)' directory.";\ 1058 /bin/false; \ 1059 fi; 1060endif 1061 1062# prepare2 creates a makefile if using a separate output directory 1063prepare2: prepare3 outputmakefile 1064 1065prepare1: prepare2 $(version_h) $(timestamp_h) 1066ifeq ($(__HAVE_ARCH_GENERIC_BOARD),) 1067ifeq ($(CONFIG_SYS_GENERIC_BOARD),y) 1068 @echo >&2 " Your architecture does not support generic board." 1069 @echo >&2 " Please undefine CONFIG_SYS_GENERIC_BOARD in your board config file." 1070 @/bin/false 1071endif 1072endif 1073ifeq ($(wildcard $(LDSCRIPT)),) 1074 @echo >&2 " Could not find linker script." 1075 @/bin/false 1076endif 1077 1078archprepare: prepare1 scripts_basic 1079 1080prepare0: archprepare FORCE 1081 $(Q)$(MAKE) $(build)=. 1082 1083# All the preparing.. 1084prepare: prepare0 1085 1086# Generate some files 1087# --------------------------------------------------------------------------- 1088 1089define filechk_version.h 1090 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1091 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1092 echo \#define CC_VERSION_STRING \"$$($(CC) --version | head -n 1)\"; \ 1093 echo \#define LD_VERSION_STRING \"$$($(LD) --version | head -n 1)\"; ) 1094endef 1095 1096define filechk_timestamp.h 1097 (LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1098 LC_ALL=C date +'#define U_BOOT_TIME "%T"') 1099endef 1100 1101$(version_h): include/config/uboot.release FORCE 1102 $(call filechk,version.h) 1103 1104$(timestamp_h): $(srctree)/Makefile FORCE 1105 $(call filechk,timestamp.h) 1106 1107# 1108# Auto-generate the autoconf.mk file (which is included by all makefiles) 1109# 1110# This target actually generates 2 files; autoconf.mk and autoconf.mk.dep. 1111# the dep file is only include in this top level makefile to determine when 1112# to regenerate the autoconf.mk file. 1113 1114quiet_cmd_autoconf_dep = GEN $@ 1115 cmd_autoconf_dep = $(CC) -x c -DDO_DEPS_ONLY -M $(c_flags) \ 1116 -MQ include/autoconf.mk $(srctree)/include/common.h > $@ || rm $@ 1117 1118include/autoconf.mk.dep: include/config.h include/common.h 1119 $(call cmd,autoconf_dep) 1120 1121quiet_cmd_autoconf = GEN $@ 1122 cmd_autoconf = \ 1123 $(CPP) $(c_flags) -DDO_DEPS_ONLY -dM $(srctree)/include/common.h > $@.tmp && \ 1124 sed -n -f $(srctree)/tools/scripts/define2mk.sed $@.tmp > $@; \ 1125 rm $@.tmp 1126 1127include/autoconf.mk: include/config.h 1128 $(call cmd,autoconf) 1129 1130# --------------------------------------------------------------------------- 1131 1132PHONY += depend dep 1133depend dep: 1134 @echo '*** Warning: make $@ is unnecessary now.' 1135 1136# --------------------------------------------------------------------------- 1137quiet_cmd_cpp_lds = LDS $@ 1138cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 1139 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 1140 1141u-boot.lds: $(LDSCRIPT) prepare FORCE 1142 $(call if_changed_dep,cpp_lds) 1143 1144PHONY += nand_spl 1145nand_spl: prepare 1146 $(Q)$(MAKE) $(build)=nand_spl/board/$(BOARDDIR) all 1147 @echo >&2 1148 @echo >&2 "==================== WARNING =====================" 1149 @echo >&2 "nand_spl will not be included in v2014.07 release." 1150 @echo >&2 "Please switch over to SPL." 1151 @echo >&2 "Otherwise, this board will be removed." 1152 @echo >&2 "==================================================" 1153 @echo >&2 1154 1155nand_spl/u-boot-spl-16k.bin: nand_spl 1156 @: 1157 1158u-boot-nand.bin: nand_spl/u-boot-spl-16k.bin u-boot.bin FORCE 1159 $(call if_changed,cat) 1160 1161spl/u-boot-spl.bin: spl/u-boot-spl 1162 @: 1163spl/u-boot-spl: tools prepare 1164 $(Q)$(MAKE) obj=spl -f $(srctree)/spl/Makefile all 1165 1166tpl/u-boot-tpl.bin: tools prepare 1167 $(Q)$(MAKE) obj=tpl -f $(srctree)/spl/Makefile all CONFIG_TPL_BUILD=y 1168 1169TAG_SUBDIRS := $(u-boot-dirs) include 1170 1171FIND := find 1172FINDFLAGS := -L 1173 1174tags ctags: 1175 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1176 -name '*.[chS]' -print` 1177 1178etags: 1179 etags -a -o $(obj)etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1180 -name '*.[chS]' -print` 1181cscope: 1182 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 1183 cscope.files 1184 cscope -b -q -k 1185 1186SYSTEM_MAP = \ 1187 $(NM) $1 | \ 1188 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 1189 LC_ALL=C sort 1190System.map: u-boot 1191 @$(call SYSTEM_MAP,$<) > $@ 1192 1193checkdtc: 1194 @if test $(call dtc-version) -lt 0104; then \ 1195 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \ 1196 false; \ 1197 fi 1198 1199######################################################################### 1200 1201# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 1202# R_AARCH64_RELATIVE (64-bit). 1203checkarmreloc: u-boot 1204 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 1205 grep R_A | sort -u`"; \ 1206 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 1207 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 1208 echo "$< contains unexpected relocations: $$RELOC"; \ 1209 false; \ 1210 fi 1211 1212env: scripts_basic 1213 $(Q)$(MAKE) $(build)=tools/$@ 1214 1215tools-only: scripts_basic $(version_h) $(timestamp_h) 1216 $(Q)$(MAKE) $(build)=tools 1217 1218tools-all: export HOST_TOOLS_ALL=y 1219tools-all: env tools ; 1220 1221cross_tools: export CROSS_BUILD_TOOLS=y 1222cross_tools: tools ; 1223 1224.PHONY : CHANGELOG 1225CHANGELOG: 1226 git log --no-merges U-Boot-1_1_5.. | \ 1227 unexpand -a | sed -e 's/\s\s*$$//' > $@ 1228 1229include/license.h: tools/bin2header COPYING 1230 cat COPYING | gzip -9 -c | ./tools/bin2header license_gzip > include/license.h 1231######################################################################### 1232 1233### 1234# Cleaning is done on three levels. 1235# make clean Delete most generated files 1236# Leave enough to build external modules 1237# make mrproper Delete the current configuration, and all generated files 1238# make distclean Remove editor backup files, patch leftover files and the like 1239 1240# Directories & files removed with 'make clean' 1241CLEAN_DIRS += $(MODVERDIR) 1242CLEAN_FILES += u-boot.lds include/bmp_logo.h include/bmp_logo_data.h \ 1243 include/autoconf.mk* include/spl-autoconf.mk \ 1244 include/tpl-autoconf.mk 1245 1246# Directories & files removed with 'make clobber' 1247CLOBBER_DIRS += $(patsubst %,spl/%, $(filter-out Makefile, \ 1248 $(shell ls -1 spl 2>/dev/null))) \ 1249 tpl 1250CLOBBER_FILES += u-boot* MLO* SPL System.map nand_spl/u-boot* 1251 1252# Directories & files removed with 'make mrproper' 1253MRPROPER_DIRS += include/config include/generated \ 1254 .tmp_objdiff 1255MRPROPER_FILES += .config .config.old \ 1256 tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \ 1257 include/config.h include/config.mk 1258 1259# clean - Delete most, but leave enough to build external modules 1260# 1261clean: rm-dirs := $(CLEAN_DIRS) 1262clean: rm-files := $(CLEAN_FILES) 1263 1264clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 1265 1266clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook) 1267 1268PHONY += $(clean-dirs) clean archclean 1269$(clean-dirs): 1270 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1271 1272# TODO: Do not use *.cfgtmp 1273clean: $(clean-dirs) 1274 $(call cmd,rmdirs) 1275 $(call cmd,rmfiles) 1276 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1277 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 1278 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \ 1279 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 1280 -o -name '*.symtypes' -o -name 'modules.order' \ 1281 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 1282 -o -name '*.gcno' \) -type f -print | xargs rm -f 1283 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1284 -path './nand_spl/*' -type l -print | xargs rm -f 1285 1286# clobber 1287# 1288clobber: rm-dirs := $(CLOBBER_DIRS) 1289clobber: rm-files := $(CLOBBER_FILES) 1290 1291PHONY += clobber 1292 1293clobber: clean 1294 $(call cmd,rmdirs) 1295 $(call cmd,rmfiles) 1296 1297# mrproper - Delete all generated files, including .config 1298# 1299mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 1300mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 1301mrproper-dirs := $(addprefix _mrproper_,scripts) 1302 1303PHONY += $(mrproper-dirs) mrproper archmrproper 1304$(mrproper-dirs): 1305 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 1306 1307mrproper: clobber $(mrproper-dirs) 1308 $(call cmd,rmdirs) 1309 $(call cmd,rmfiles) 1310 @rm -f arch/*/include/asm/arch arch/*/include/asm/proc 1311 1312# distclean 1313# 1314PHONY += distclean 1315 1316distclean: mrproper 1317 @find $(srctree) $(RCS_FIND_IGNORE) \ 1318 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 1319 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 1320 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 1321 -o -name '*.pyc' \) \ 1322 -type f -print | xargs rm -f 1323 1324backup: 1325 F=`basename $(srctree)` ; cd .. ; \ 1326 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 1327 1328help: 1329 @echo 'Cleaning targets:' 1330 @echo ' clean - Remove most generated files but keep the config and' 1331 @echo ' necessities for testing u-boot' 1332 @echo ' clobber - Remove most generated files but keep the config' 1333 @echo ' mrproper - Remove all generated files + config + various backup files' 1334 @echo ' distclean - mrproper + remove editor backup and patch files' 1335 @echo '' 1336# uncomment after adding Kconfig feature 1337# @echo 'Configuration targets:' 1338# @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 1339# @echo '' 1340 @echo 'Other generic targets:' 1341 @echo ' all - Build all necessary images depending on configuration' 1342 @echo ' u-boot - Build the bare u-boot' 1343 @echo ' dir/ - Build all files in dir and below' 1344 @echo ' dir/file.[oisS] - Build specified target only' 1345 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 1346 @echo ' (requires a recent binutils and recent build (System.map))' 1347 @echo ' tags/TAGS - Generate tags file for editors' 1348 @echo ' cscope - Generate cscope index' 1349 @echo ' ubootrelease - Output the release version string' 1350 @echo ' ubootversion - Output the version stored in Makefile' 1351 @echo '' 1352 @echo 'Static analysers' 1353 @echo ' checkstack - Generate a list of stack hogs' 1354 @echo '' 1355 @echo 'Documentation targets:' 1356 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp 1357 @echo '' 1358 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 1359 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 1360 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 1361 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 1362 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 1363 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 1364 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 1365 @echo ' 1: warnings which may be relevant and do not occur too often' 1366 @echo ' 2: warnings which occur quite often but may still be relevant' 1367 @echo ' 3: more obscure warnings, can most likely be ignored' 1368 @echo ' Multiple levels can be combined with W=12 or W=123' 1369 @echo '' 1370 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 1371 @echo 'For further info see the ./README file' 1372 1373 1374# Documentation targets 1375# --------------------------------------------------------------------------- 1376%docs: scripts_basic FORCE 1377 $(Q)$(MAKE) $(build)=scripts build_docproc 1378 $(Q)$(MAKE) $(build)=doc/DocBook $@ 1379 1380# Dummies... 1381PHONY += prepare scripts 1382prepare: ; 1383scripts: ; 1384 1385endif #ifeq ($(config-targets),1) 1386endif #ifeq ($(mixed-targets),1) 1387 1388PHONY += checkstack ubootrelease ubootversion 1389 1390checkstack: 1391 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 1392 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 1393 1394ubootrelease: 1395 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1396 1397ubootversion: 1398 @echo $(UBOOTVERSION) 1399 1400# Single targets 1401# --------------------------------------------------------------------------- 1402# Single targets are compatible with: 1403# - build with mixed source and output 1404# - build with separate output dir 'make O=...' 1405# - external modules 1406# 1407# target-dir => where to store outputfile 1408# build-dir => directory in kernel source tree to use 1409 1410ifeq ($(KBUILD_EXTMOD),) 1411 build-dir = $(patsubst %/,%,$(dir $@)) 1412 target-dir = $(dir $@) 1413else 1414 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 1415 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 1416 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 1417endif 1418 1419%.s: %.c prepare scripts FORCE 1420 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1421%.i: %.c prepare scripts FORCE 1422 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1423%.o: %.c prepare scripts FORCE 1424 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1425%.lst: %.c prepare scripts FORCE 1426 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1427%.s: %.S prepare scripts FORCE 1428 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1429%.o: %.S prepare scripts FORCE 1430 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1431%.symtypes: %.c prepare scripts FORCE 1432 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1433 1434# Modules 1435/: prepare scripts FORCE 1436 $(cmd_crmodverdir) 1437 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1438 $(build)=$(build-dir) 1439%/: prepare scripts FORCE 1440 $(cmd_crmodverdir) 1441 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1442 $(build)=$(build-dir) 1443%.ko: prepare scripts FORCE 1444 $(cmd_crmodverdir) 1445 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1446 $(build)=$(build-dir) $(@:.ko=.o) 1447 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1448 1449# FIXME Should go into a make.lib or something 1450# =========================================================================== 1451 1452quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 1453 cmd_rmdirs = rm -rf $(rm-dirs) 1454 1455quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 1456 cmd_rmfiles = rm -f $(rm-files) 1457 1458# read all saved command lines 1459 1460targets := $(wildcard $(sort $(targets))) 1461cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 1462 1463ifneq ($(cmd_files),) 1464 $(cmd_files): ; # Do not try to update included dependency files 1465 include $(cmd_files) 1466endif 1467 1468# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir 1469# Usage: 1470# $(Q)$(MAKE) $(clean)=dir 1471clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj 1472 1473endif # skip-makefile 1474 1475PHONY += FORCE 1476FORCE: 1477 1478# Declare the contents of the .PHONY variable as phony. We keep that 1479# information in a variable so we can use it in if_changed and friends. 1480.PHONY: $(PHONY) 1481