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