Makefile 51.4 KB
Newer Older
Tom Rini's avatar
Tom Rini committed
1
VERSION = 2015
Tom Rini's avatar
Tom Rini committed
2
PATCHLEVEL = 10
Wolfgang Denk's avatar
Wolfgang Denk committed
3
SUBLEVEL =
Tom Rini's avatar
Tom Rini committed
4
EXTRAVERSION = -rc5
5
NAME =
6

7 8 9 10 11 12
# *DOCUMENTATION*
# To see a list of typical targets execute "make help"
# More info can be located in ./README
# Comments in this file are targeted only to the developer, do not
# expect to learn how to build the kernel reading this file.

13 14 15 16
# o Do not use make's built-in rules and variables
#   (this increases performance and avoids hard-to-debug behaviour);
# o Look for make include files relative to root of kernel src
MAKEFLAGS += -rR --include-dir=$(CURDIR)
17 18 19 20 21 22 23

# Avoid funny character set dependencies
unexport LC_ALL
LC_COLLATE=C
LC_NUMERIC=C
export LC_COLLATE LC_NUMERIC

24 25 26
# Avoid interference with shell env settings
unexport GREP_OPTIONS

27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42
# We are using a recursive build, so we need to do a little thinking
# to get the ordering right.
#
# Most importantly: sub-Makefiles should only ever modify files in
# their own directory. If in some directory we have a dependency on
# a file in another dir (which doesn't happen often, but it's often
# unavoidable when linking the built-in.o targets which finally
# turn into vmlinux), we will call a sub make in that other dir, and
# after that we are sure that everything which is in that other dir
# is now up to date.
#
# The only cases where we need to modify files which have global
# effects are thus separated out and done before the recursive
# descending is started. They are now explicitly listed as the
# prepare rule.

43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65
# Beautify output
# ---------------------------------------------------------------------------
#
# Normally, we echo the whole command before executing it. By making
# that echo $($(quiet)$(cmd)), we now have the possibility to set
# $(quiet) to choose other forms of output instead, e.g.
#
#         quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
#         cmd_cc_o_c       = $(CC) $(c_flags) -c -o $@ $<
#
# If $(quiet) is empty, the whole command will be printed.
# If it is set to "quiet_", only the short version will be printed.
# If it is set to "silent_", nothing will be printed at all, since
# the variable $(silent_cmd_cc_o_c) doesn't exist.
#
# A simple variant is to prefix commands with $(Q) - that's useful
# for commands that shall be hidden in non-verbose mode.
#
#	$(Q)ln $@ :<
#
# If KBUILD_VERBOSE equals 0 then the above command will be hidden.
# If KBUILD_VERBOSE equals 1 then the above command is displayed.
#
66 67 68 69 70 71 72 73 74 75
# To put more focus on warnings, be less verbose as default
# Use 'make V=1' to see the full commands

ifeq ("$(origin V)", "command line")
  KBUILD_VERBOSE = $(V)
endif
ifndef KBUILD_VERBOSE
  KBUILD_VERBOSE = 0
endif

76 77 78 79 80 81 82
ifeq ($(KBUILD_VERBOSE),1)
  quiet =
  Q =
else
  quiet=quiet_
  Q = @
endif
83

84 85 86 87 88 89
# If the user is running make -s (silent mode), suppress echoing of
# commands

ifneq ($(filter 4.%,$(MAKE_VERSION)),)	# make-4
ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
  quiet=silent_
90
endif
91 92 93
else					# make-3.8x
ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
  quiet=silent_
94 95 96
endif
endif

97
export quiet Q KBUILD_VERBOSE
98

99 100 101 102 103
# kbuild supports saving output files in a separate directory.
# To locate output files in a separate directory two syntaxes are supported.
# In both cases the working directory must be the root of the kernel src.
# 1) O=
# Use "make O=dir/to/store/output/files/"
104
#
105 106 107 108 109
# 2) Set KBUILD_OUTPUT
# Set the environment variable KBUILD_OUTPUT to point to the directory
# where the output files shall be placed.
# export KBUILD_OUTPUT=dir/to/store/output/files/
# make
110
#
111 112 113 114 115 116
# The O= assignment takes precedence over the KBUILD_OUTPUT environment
# variable.

# KBUILD_SRC is set on invocation of make in OBJ directory
# KBUILD_SRC is not intended to be used by the regular user (for now)
ifeq ($(KBUILD_SRC),)
117

118 119
# OK, Make called in directory where kernel src resides
# Do we want to locate output files in a separate directory?
120
ifeq ("$(origin O)", "command line")
121 122 123 124 125 126 127 128 129 130 131 132 133 134
  KBUILD_OUTPUT := $(O)
endif

# That's our default target when none is given on the command line
PHONY := _all
_all:

# Cancel implicit rules on top Makefile
$(CURDIR)/Makefile Makefile: ;

ifneq ($(KBUILD_OUTPUT),)
# Invoke a second make in the output directory, passing relevant variables
# check that the output directory actually exists
saved-output := $(KBUILD_OUTPUT)
135 136
KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
								&& /bin/pwd)
137
$(if $(KBUILD_OUTPUT),, \
138
     $(error failed to create output directory "$(saved-output)"))
139 140 141 142 143 144 145

PHONY += $(MAKECMDGOALS) sub-make

$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
	@:

sub-make: FORCE
146 147
	$(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
	-f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
148 149 150 151 152 153 154 155 156

# Leave processing to above invocation of make
skip-makefile := 1
endif # ifneq ($(KBUILD_OUTPUT),)
endif # ifeq ($(KBUILD_SRC),)

# We process the rest of the Makefile if this is the final invocation of make
ifeq ($(skip-makefile),)

157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189
# Do not print "Entering directory ...",
# but we want to display it when entering to the output directory
# so that IDEs/editors are able to understand relative filenames.
MAKEFLAGS += --no-print-directory

# Call a source code checker (by default, "sparse") as part of the
# C compilation.
#
# Use 'make C=1' to enable checking of only re-compiled files.
# Use 'make C=2' to enable checking of *all* source files, regardless
# of whether they are re-compiled or not.
#
# See the file "Documentation/sparse.txt" for more details, including
# where to get the "sparse" utility.

ifeq ("$(origin C)", "command line")
  KBUILD_CHECKSRC = $(C)
endif
ifndef KBUILD_CHECKSRC
  KBUILD_CHECKSRC = 0
endif

# Use make M=dir to specify directory of external module to build
# Old syntax make ... SUBDIRS=$PWD is still supported
# Setting the environment variable KBUILD_EXTMOD take precedence
ifdef SUBDIRS
  KBUILD_EXTMOD ?= $(SUBDIRS)
endif

ifeq ("$(origin M)", "command line")
  KBUILD_EXTMOD := $(M)
endif

190 191
# If building an external module we do not care about the all: rule
# but instead _all depend on modules
192
PHONY += all
193
ifeq ($(KBUILD_EXTMOD),)
194
_all: all
195
else
196
_all: modules
197
endif
198

199 200 201 202 203 204 205 206 207 208 209 210
ifeq ($(KBUILD_SRC),)
        # building in the source tree
        srctree := .
else
        ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
                # building in a subdirectory of the source tree
                srctree := ..
        else
                srctree := $(KBUILD_SRC)
        endif
endif
objtree		:= .
211 212 213 214 215 216 217
src		:= $(srctree)
obj		:= $(objtree)

VPATH		:= $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))

export srctree objtree VPATH

218 219 220
# Make sure CDPATH settings don't interfere
unexport CDPATH

wdenk's avatar
wdenk committed
221 222 223
#########################################################################

HOSTARCH := $(shell uname -m | \
Graeme Russ's avatar
Graeme Russ committed
224
	sed -e s/i.86/x86/ \
wdenk's avatar
wdenk committed
225 226 227
	    -e s/sun4u/sparc64/ \
	    -e s/arm.*/arm/ \
	    -e s/sa110/arm/ \
228 229
	    -e s/ppc64/powerpc/ \
	    -e s/ppc/powerpc/ \
230 231
	    -e s/macppc/powerpc/\
	    -e s/sh.*/sh/)
wdenk's avatar
wdenk committed
232

233
HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
wdenk's avatar
wdenk committed
234 235
	    sed -e 's/\(cygwin\).*/cygwin/')

236
export	HOSTARCH HOSTOS
wdenk's avatar
wdenk committed
237

238
#########################################################################
239

240
# set default to nothing for native builds
Wolfgang Denk's avatar
Wolfgang Denk committed
241
ifeq ($(HOSTARCH),$(ARCH))
242
CROSS_COMPILE ?=
243 244
endif

245 246 247
KCONFIG_CONFIG	?= .config
export KCONFIG_CONFIG

248 249 250 251 252
# SHELL used by kbuild
CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
	  else if [ -x /bin/bash ]; then echo /bin/bash; \
	  else echo sh; fi ; fi)

253 254
HOSTCC       = cc
HOSTCXX      = c++
255
HOSTCFLAGS   = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
256 257
HOSTCXXFLAGS = -O2

258 259 260 261 262 263 264 265 266 267
ifeq ($(HOSTOS),cygwin)
HOSTCFLAGS	+= -ansi
endif

# Mac OS X / Darwin's C preprocessor is Apple specific.  It
# generates numerous errors and warnings.  We want to bypass it
# and use GNU C's cpp.	To do this we pass the -traditional-cpp
# option to the compiler.  Note that the -traditional-cpp flag
# DOES NOT have the same semantics as GNU C's flag, all it does
# is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
268
#
269 270 271
# Apple's linker is similar, thanks to the new 2 stage linking
# multiple symbol definitions are treated as errors, hence the
# -multiply_defined suppress option to turn off this error.
272
#
273 274 275 276 277 278 279 280 281 282 283 284
ifeq ($(HOSTOS),darwin)
# get major and minor product version (e.g. '10' and '6' for Snow Leopard)
DARWIN_MAJOR_VERSION	= $(shell sw_vers -productVersion | cut -f 1 -d '.')
DARWIN_MINOR_VERSION	= $(shell sw_vers -productVersion | cut -f 2 -d '.')

os_x_before	= $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
	$(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)

# Snow Leopards build environment has no longer restrictions as described above
HOSTCC       = $(call os_x_before, 10, 5, "cc", "gcc")
HOSTCFLAGS  += $(call os_x_before, 10, 4, "-traditional-cpp")
HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
285 286 287 288 289

# since Lion (10.7) ASLR is on by default, but we use linker generated lists
# in some host tools which is a problem then ... so disable ASLR for these
# tools
HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie")
290 291
endif

292 293 294 295 296 297
# Decide whether to build built-in, modular, or both.
# Normally, just do built-in.

KBUILD_MODULES :=
KBUILD_BUILTIN := 1

298 299 300 301
# If we have only "make modules", don't compile built-in objects.
# When we're building modules with modversions, we need to consider
# the built-in objects during the descend as well, in order to
# make sure the checksums are up to date before we record them.
302 303 304 305 306

ifeq ($(MAKECMDGOALS),modules)
  KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
endif

307 308 309
# If we have "make <whatever> modules", compile modules
# in addition to whatever we do anyway.
# Just "make" or "make all" shall build modules as well
310 311 312 313 314 315 316 317 318 319 320 321 322

# U-Boot does not need modules
#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
#  KBUILD_MODULES := 1
#endif

#ifeq ($(MAKECMDGOALS),)
#  KBUILD_MODULES := 1
#endif

export KBUILD_MODULES KBUILD_BUILTIN
export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD

323
# We need some generic definitions (do not try to remake the file).
324 325
scripts/Kbuild.include: ;
include scripts/Kbuild.include
326

327
# Make variables (CC, etc...)
wdenk's avatar
wdenk committed
328

329 330 331 332
AS		= $(CROSS_COMPILE)as
# Always use GNU ld
ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
LD		= $(CROSS_COMPILE)ld.bfd
333
else
334 335 336 337 338 339 340 341 342 343 344
LD		= $(CROSS_COMPILE)ld
endif
CC		= $(CROSS_COMPILE)gcc
CPP		= $(CC) -E
AR		= $(CROSS_COMPILE)ar
NM		= $(CROSS_COMPILE)nm
LDR		= $(CROSS_COMPILE)ldr
STRIP		= $(CROSS_COMPILE)strip
OBJCOPY		= $(CROSS_COMPILE)objcopy
OBJDUMP		= $(CROSS_COMPILE)objdump
AWK		= awk
345
PERL		= perl
346
PYTHON		= python
347 348 349 350 351 352
DTC		= dtc
CHECK		= sparse

CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
		  -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)

353
KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
354 355 356 357 358 359

KBUILD_CFLAGS   := -Wall -Wstrict-prototypes \
		   -Wno-format-security \
		   -fno-builtin -ffreestanding
KBUILD_AFLAGS   := -D__ASSEMBLY__

360 361 362
# Read UBOOTRELEASE from include/config/uboot.release (if it exists)
UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
363

364
export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
365
export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
366 367
export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
368
export MAKE AWK PERL PYTHON
369
export HOSTCXX HOSTCXXFLAGS DTC CHECK CHECKFLAGS
370

371
export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
372 373
export KBUILD_CFLAGS KBUILD_AFLAGS

374 375 376 377 378 379 380
# When compiling out-of-tree modules, put MODVERDIR in the module
# tree rather than in the kernel tree. The kernel tree might
# even be read-only.
export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions

# Files to ignore in find ... statements

381 382 383
export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o    \
			  -name CVS -o -name .pc -o -name .hg -o -name .git \) \
			  -prune -o
384 385 386 387 388 389 390 391 392 393 394 395 396 397 398
export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
			 --exclude CVS --exclude .pc --exclude .hg --exclude .git

# ===========================================================================
# Rules shared between *config targets and build targets

# Basic helpers built in scripts/
PHONY += scripts_basic
scripts_basic:
	$(Q)$(MAKE) $(build)=scripts/basic
	$(Q)rm -f .tmp_quiet_recordmcount

# To avoid any implicit rule to kick in, define an empty command.
scripts/basic/%: scripts_basic ;

399 400 401 402 403 404 405 406 407
PHONY += outputmakefile
# outputmakefile generates a Makefile in the output directory, if using a
# separate output directory. This allows convenient use of make in the
# output directory.
outputmakefile:
ifneq ($(KBUILD_SRC),)
	$(Q)ln -fsn $(srctree) source
	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
	    $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
408
endif
409

410 411 412 413 414 415 416 417
# To make sure we do not include .config for any of the *config targets
# catch them early, and hand them over to scripts/kconfig/Makefile
# It is allowed to specify more targets when calling make, including
# mixing *config targets and build targets.
# For example 'make oldconfig all'.
# Detect when mixed targets is specified, and make a second invocation
# of make so .config is not included in this case either (for *config).

418 419 420
version_h := include/generated/version_autogenerated.h
timestamp_h := include/generated/timestamp_autogenerated.h

421
no-dot-config-targets := clean clobber mrproper distclean \
422
			 help %docs check% coccicheck \
423
			 ubootversion backup
424 425 426 427 428 429 430 431 432 433

config-targets := 0
mixed-targets  := 0
dot-config     := 1

ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
	ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
		dot-config := 0
	endif
endif
434

435 436 437
ifeq ($(KBUILD_EXTMOD),)
        ifneq ($(filter config %config,$(MAKECMDGOALS)),)
                config-targets := 1
438
                ifneq ($(words $(MAKECMDGOALS)),1)
439 440 441
                        mixed-targets := 1
                endif
        endif
442
endif
wdenk's avatar
wdenk committed
443

444 445 446 447
ifeq ($(mixed-targets),1)
# ===========================================================================
# We're called with mixed targets (*config and build targets).
# Handle them one by one.
448

449
PHONY += $(MAKECMDGOALS) __build_one_by_one
450

451
$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
452 453
	@:

454
__build_one_by_one:
455 456 457 458
	$(Q)set -e; \
	for i in $(MAKECMDGOALS); do \
		$(MAKE) -f $(srctree)/Makefile $$i; \
	done
459

460 461 462 463 464
else
ifeq ($(config-targets),1)
# ===========================================================================
# *config targets only - make sure prerequisites are updated, and descend
# in scripts/kconfig to make the *config target
wdenk's avatar
wdenk committed
465

466 467
KBUILD_DEFCONFIG := sandbox_defconfig
export KBUILD_DEFCONFIG KBUILD_KCONFIG
468

469
config: scripts_basic outputmakefile FORCE
470
	$(Q)$(MAKE) $(build)=scripts/kconfig $@
471 472

%config: scripts_basic outputmakefile FORCE
473
	$(Q)$(MAKE) $(build)=scripts/kconfig $@
474

475 476 477 478
else
# ===========================================================================
# Build targets only - this includes vmlinux, arch specific targets, clean
# targets and others. In general all targets except *config targets.
479

480 481
ifeq ($(dot-config),1)
# Read in config
482 483 484 485 486 487 488 489 490 491 492 493 494 495 496
-include include/config/auto.conf

# Read in dependencies to all Kconfig* files, make sure to run
# oldconfig if changes are detected.
-include include/config/auto.conf.cmd

# To avoid any implicit rule to kick in, define an empty command
$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;

# If .config is newer than include/config/auto.conf, someone tinkered
# with it and forgot to run make oldconfig.
# if auto.conf.cmd is missing then we are probably in a cleaned tree so
# we execute the config step to be sure to catch updated Kconfig files
include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
	$(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
497 498 499 500 501 502 503 504 505
	@# If the following part fails, include/config/auto.conf should be
	@# deleted so "make silentoldconfig" will be re-run on the next build.
	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
		{ rm -f include/config/auto.conf; false; }
	@# include/config.h has been updated after "make silentoldconfig".
	@# We need to touch include/config/auto.conf so it gets newer
	@# than include/config.h.
	@# Otherwise, 'make silentoldconfig' would be invoked twice.
	$(Q)touch include/config/auto.conf
506

507 508
-include include/autoconf.mk
-include include/autoconf.mk.dep
wdenk's avatar
wdenk committed
509

510 511 512 513
# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
# is up-to-date. When we switch to a different board configuration, old CONFIG
# macros are still remaining in include/config/auto.conf. Without the following
# gimmick, wrong config.mk would be included leading nasty warnings/errors.
514 515 516 517 518
ifneq ($(wildcard $(KCONFIG_CONFIG)),)
ifneq ($(wildcard include/config/auto.conf),)
autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
						include/config/auto.conf)
ifeq ($(autoconf_is_old),)
519 520
include config.mk
include arch/$(ARCH)/Makefile
521
endif
522 523
endif
endif
524

525 526 527 528 529
# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
# that (or fail if absent).  Otherwise, search for a linker script in a
# standard location.

ifndef LDSCRIPT
530
	#LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
531 532
	ifdef CONFIG_SYS_LDSCRIPT
		# need to strip off double quotes
533
		LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
534 535 536
	endif
endif

537
# If there is no specified link script, we look in a number of places for it
538 539
ifndef LDSCRIPT
	ifeq ($(wildcard $(LDSCRIPT)),)
540
		LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
541 542
	endif
	ifeq ($(wildcard $(LDSCRIPT)),)
543
		LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
544
	endif
545
	ifeq ($(wildcard $(LDSCRIPT)),)
546
		LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
547
	endif
548 549
endif

550
else
551 552
# Dummy target needed, because used as prerequisite
include/config/auto.conf: ;
553 554
endif # $(dot-config)

555 556 557 558 559
ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
KBUILD_CFLAGS	+= -Os
else
KBUILD_CFLAGS	+= -O2
endif
560 561 562 563 564 565

ifdef BUILD_TAG
KBUILD_CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"'
endif

KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
566
KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
567 568 569 570 571 572 573

KBUILD_CFLAGS	+= -g
# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
# option to the assembler.
KBUILD_AFLAGS	+= -g

# Report stack usage if supported
574 575 576
ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
	KBUILD_CFLAGS += -fstack-usage
endif
577 578 579 580 581 582 583 584 585 586

KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)

# turn jbsr into jsr for m68k
ifeq ($(ARCH),m68k)
ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
KBUILD_AFLAGS += -Wa,-gstabs,-S
endif
endif

587 588 589
# Prohibit date/time macros, which would make the build non-deterministic
KBUILD_CFLAGS   += $(call cc-option,-Werror=date-time)

590 591 592 593 594 595
ifneq ($(CONFIG_SYS_TEXT_BASE),)
KBUILD_CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE)
endif

export CONFIG_SYS_TEXT_BASE

596
include scripts/Makefile.extrawarn
597

598 599 600 601 602
# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
KBUILD_CPPFLAGS += $(KCPPFLAGS)
KBUILD_AFLAGS += $(KAFLAGS)
KBUILD_CFLAGS += $(KCFLAGS)

603 604
# Use UBOOTINCLUDE when you must reference the include/ directory.
# Needed to be compatible with the O= option
605 606 607
UBOOTINCLUDE    := \
		-Iinclude \
		$(if $(KBUILD_SRC), -I$(srctree)/include) \
608 609
		-I$(srctree)/arch/$(ARCH)/include \
		-include $(srctree)/include/linux/kconfig.h
610 611 612 613 614

NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
CHECKFLAGS     += $(NOSTDINC_FLAGS)

# FIX ME
615 616
cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
							$(NOSTDINC_FLAGS)
617 618
c_flags := $(KBUILD_CFLAGS) $(cpp_flags)

wdenk's avatar
wdenk committed
619 620 621
#########################################################################
# U-Boot objects....order is important (i.e. start must be first)

622
HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
623

624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643
libs-y += lib/
libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
libs-$(CONFIG_OF_EMBED) += dts/
libs-y += fs/
libs-y += net/
libs-y += disk/
libs-y += drivers/
libs-y += drivers/dma/
libs-y += drivers/gpio/
libs-y += drivers/i2c/
libs-y += drivers/mmc/
libs-y += drivers/mtd/
libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/
libs-y += drivers/mtd/onenand/
libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
libs-y += drivers/mtd/spi/
libs-y += drivers/net/
libs-y += drivers/net/phy/
libs-y += drivers/pci/
libs-y += drivers/power/ \
644 645 646
	drivers/power/fuel_gauge/ \
	drivers/power/mfd/ \
	drivers/power/pmic/ \
647 648
	drivers/power/battery/ \
	drivers/power/regulator/
649 650 651
libs-y += drivers/spi/
libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
652
libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/
653
libs-y += drivers/serial/
654
libs-y += drivers/usb/dwc3/
655
libs-y += drivers/usb/emul/
656 657
libs-y += drivers/usb/eth/
libs-y += drivers/usb/gadget/
658
libs-y += drivers/usb/gadget/udc/
659 660 661 662 663 664 665 666 667
libs-y += drivers/usb/host/
libs-y += drivers/usb/musb/
libs-y += drivers/usb/musb-new/
libs-y += drivers/usb/phy/
libs-y += drivers/usb/ulpi/
libs-y += common/
libs-$(CONFIG_API) += api/
libs-$(CONFIG_HAS_POST) += post/
libs-y += test/
Simon Glass's avatar
Simon Glass committed
668
libs-y += test/dm/
669
libs-$(CONFIG_UT_ENV) += test/env/
670

671
libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
672 673

libs-y := $(sort $(libs-y))
674

675 676 677 678 679 680 681 682
u-boot-dirs	:= $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples

u-boot-alldirs	:= $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))

libs-y		:= $(patsubst %/, %/built-in.o, $(libs-y))

u-boot-init := $(head-y)
u-boot-main := $(libs-y)
683

684

685
# Add GCC lib
686
ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
687
PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
688
else
689
PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
690 691 692
endif
PLATFORM_LIBS += $(PLATFORM_LIBGCC)
export PLATFORM_LIBS
693
export PLATFORM_LIBGCC
694

695 696 697 698
# Special flags for CPP when processing the linker script.
# Pass the version down so we can handle backwards compatibility
# on the fly.
LDPPFLAGS += \
699
	-include $(srctree)/include/u-boot/u-boot.lds.h \
700
	-DCPUDIR=$(CPUDIR) \
701 702 703
	$(shell $(LD) --version | \
	  sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')

704
#########################################################################
wdenk's avatar
wdenk committed
705 706
#########################################################################

707 708 709
ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
BOARD_SIZE_CHECK = \
	@actual=`wc -c $@ | awk '{print $$1}'`; \
710
	limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
711
	if test $$actual -gt $$limit; then \
712 713 714 715
		echo "$@ exceeds file size limit:" >&2 ; \
		echo "  limit:  $$limit bytes" >&2 ; \
		echo "  actual: $$actual bytes" >&2 ; \
		echo "  excess: $$((actual - limit)) bytes" >&2; \
716 717 718 719 720 721
		exit 1; \
	fi
else
BOARD_SIZE_CHECK =
endif

722 723 724 725 726 727
# Statically apply RELA-style relocations (currently arm64 only)
ifneq ($(CONFIG_STATIC_RELA),)
# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
DO_STATIC_RELA = \
	start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
	end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
728
	tools/relocate-rela $(2) $(3) $$start $$end
729 730 731 732
else
DO_STATIC_RELA =
endif

733
# Always append ALL so that arch config.mk's can add custom ones
734
ALL-y += u-boot.srec u-boot.bin System.map u-boot.cfg binary_size_check
735 736

ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
737 738 739
ifeq ($(CONFIG_SPL_FSL_PBL),y)
ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
else
740 741 742
ifneq ($(CONFIG_SECURE_BOOT), y)
# For Secure Boot The Image needs to be signed and Header must also
# be included. So The image has to be built explicitly
743
ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
744
endif
745
endif
746 747 748
ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
749
ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb u-boot-dtb.bin
750 751 752
ifeq ($(CONFIG_SPL_FRAMEWORK),y)
ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
endif
753
ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
754
ifneq ($(CONFIG_SPL_TARGET),)
755
ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
756
endif
757
ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
758
ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
759
ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
760

761 762 763
ifneq ($(BUILD_ROM),)
ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
endif
764

765
# enable combined SPL/u-boot/dtb rules for tegra
766
ifneq ($(CONFIG_TEGRA),)
767
ifeq ($(CONFIG_SPL),y)
768
ifeq ($(CONFIG_OF_SEPARATE),y)
769
ALL-y += u-boot-dtb-tegra.bin
770
else
771
ALL-y += u-boot-nodtb-tegra.bin
772 773
endif
endif
774
endif
775

776 777 778 779 780
# Add optional build target if defined in board/cpu/soc headers
ifneq ($(CONFIG_BUILD_TARGET),)
ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
endif

781
LDFLAGS_u-boot += $(LDFLAGS_FINAL)
782 783 784
ifneq ($(CONFIG_SYS_TEXT_BASE),)
LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
endif
785

786
# Normally we fill empty space with 0xff
787
quiet_cmd_objcopy = OBJCOPY $@
788 789 790 791 792 793
cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
	$(OBJCOPYFLAGS_$(@F)) $< $@

# Provide a version which does not do this, for use by EFI
quiet_cmd_zobjcopy = OBJCOPY $@
cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
794

795 796 797
quiet_cmd_efipayload = OBJCOPY $@
cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@

798
quiet_cmd_mkimage = MKIMAGE $@
799 800 801
cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
	$(if $(KBUILD_VERBOSE:1=), >/dev/null)

802 803 804
quiet_cmd_cat = CAT     $@
cmd_cat = cat $(filter-out $(PHONY), $^) > $@

805 806 807 808 809
append = cat $(filter-out $< $(PHONY), $^) >> $@

quiet_cmd_pad_cat = CAT     $@
cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@

810
all:		$(ALL-y)
811 812 813 814 815 816 817
ifneq ($(CONFIG_SYS_GENERIC_BOARD),y)
	@echo "===================== WARNING ======================"
	@echo "Please convert this board to generic board."
	@echo "Otherwise it will be removed by the end of 2014."
	@echo "See doc/README.generic-board for further information"
	@echo "===================================================="
endif
818 819 820 821 822 823 824
ifeq ($(CONFIG_DM_I2C_COMPAT),y)
	@echo "===================== WARNING ======================"
	@echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
	@echo "(possibly in a subsequent patch in your series)"
	@echo "before sending patches to the mailing list."
	@echo "===================================================="
endif
wdenk's avatar
wdenk committed
825

826 827 828
PHONY += dtbs
dtbs dts/dt.dtb: checkdtc u-boot
	$(Q)$(MAKE) $(build)=dts dtbs
829

830 831
u-boot-dtb.bin: u-boot.bin dts/dt.dtb FORCE
	$(call if_changed,cat)
832

833 834 835
%.imx: %.bin
	$(Q)$(MAKE) $(build)=arch/arm/imx-common $@

836 837 838 839 840 841
quiet_cmd_copy = COPY    $@
      cmd_copy = cp $< $@

u-boot.dtb: dts/dt.dtb
	$(call cmd,copy)

842
OBJCOPYFLAGS_u-boot.hex := -O ihex
843

844
OBJCOPYFLAGS_u-boot.srec := -O srec
wdenk's avatar
wdenk committed
845

846 847 848
u-boot.hex u-boot.srec: u-boot FORCE
	$(call if_changed,objcopy)

849 850
OBJCOPYFLAGS_u-boot.bin := -O binary \
		$(if $(CONFIG_X86_RESET_VECTOR),-R .start16 -R .resetvec)
851

852
binary_size_check: u-boot.bin FORCE
853
	@file_size=$(shell wc -c u-boot.bin | awk '{print $$1}') ; \
854
	map_size=$(shell cat u-boot.map | \
855
		awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
856
		| sed 's/0X//g' \
857
		| bc); \
858 859
	if [ "" != "$$map_size" ]; then \
		if test $$map_size -ne $$file_size; then \
860
			echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
861 862 863 864 865
			echo "  but u-boot.bin shows $$file_size" >&2 ; \
			exit 1; \
		fi \
	fi

866 867 868 869
u-boot.bin: u-boot FORCE
	$(call if_changed,objcopy)
	$(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
	$(BOARD_SIZE_CHECK)
wdenk's avatar
wdenk committed
870

871
u-boot.ldr:	u-boot
872
		$(CREATE_LDR_ENV)
873
		$(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
874
		$(BOARD_SIZE_CHECK)
875

876 877 878
OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex

OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
879

880 881
u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
	$(call if_changed,objcopy)
882

883 884 885 886 887 888 889 890
#
# U-Boot entry point, needed for booting of full-blown U-Boot
# from the SPL U-Boot version.
#
ifndef CONFIG_SYS_UBOOT_START
CONFIG_SYS_UBOOT_START := 0
endif

891 892 893
# Create a file containing the configuration options the image was built with
quiet_cmd_cpp_cfg = CFG     $@
cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
894
	-DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
895

896 897 898
MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
899

900 901
MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
	-T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
902

903
MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
904
	-T kwbimage -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE)
905

906 907
MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
		-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
908

909
u-boot.img u-boot.kwb u-boot.pbl: u-boot.bin FORCE
910 911
	$(call if_changed,mkimage)

912 913 914
u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
	$(call if_changed,mkimage)

915 916 917 918 919
MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)

u-boot-dtb.img: u-boot-dtb.bin FORCE
	$(call if_changed,mkimage)

920 921
u-boot.sha1:	u-boot.bin
		tools/ubsha1 u-boot.bin
922

923
u-boot.dis:	u-boot
wdenk's avatar
wdenk committed
924 925
		$(OBJDUMP) -d $< > $@

926 927 928
u-boot.cfg:	include/config.h
	$(call if_changed,cpp_cfg)

929
ifdef CONFIG_TPL
930
SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
931
else
932
SPL_PAYLOAD := u-boot.bin
933
endif
934

935 936 937 938
OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
				   --pad-to=$(CONFIG_SPL_PAD_TO)
u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
	$(call if_changed,pad_cat)
939

940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959
MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)

lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
	$(call if_changed,mkimage)

OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)

lpc32xx-boot-0.bin: lpc32xx-spl.img
	$(call if_changed,objcopy)

OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)

lpc32xx-boot-1.bin: lpc32xx-spl.img
	$(call if_changed,objcopy)

lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img
	$(call if_changed,cat)

CLEAN_FILES += lpc32xx-*

960 961 962 963
OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
				   --pad-to=$(CONFIG_TPL_PAD_TO)
tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
	$(call if_changed,pad_cat)
964

965 966 967 968
SPL: spl/u-boot-spl.bin FORCE
	$(Q)$(MAKE) $(build)=arch/arm/imx-common $@

u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
969
	$(Q)$(MAKE) $(build)=arch/arm/imx-common $@
970

971 972 973 974
MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)

u-boot.ubl: u-boot-with-spl.bin FORCE
	$(call if_changed,mkimage)
975

976 977 978 979 980
MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
	$(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
	-T aisimage -e $(CONFIG_SPL_TEXT_BASE)
spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
	$(call if_changed,mkimage)
981

982
OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
983 984
u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
	$(call if_changed,pad_cat)
985

986 987
u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
	$(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
988
u-boot.sb: u-boot.bin spl/u-boot-spl.bin
989
	$(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
990

991 992 993 994 995 996
# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
# Both images are created using mkimage (crc etc), so that the ROM
# bootloader can check its integrity. Padding needs to be done to the
# SPL image (with mkimage header) and not the binary. Otherwise the resulting image
# which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
# The resulting image containing both U-Boot images is called u-boot.spr
997 998 999 1000 1001 1002 1003 1004 1005
MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
	-a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
	$(call if_changed,mkimage)

OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
			  --gap-fill=0xff
u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
	$(call if_changed,pad_cat)
1006

1007 1008 1009 1010 1011 1012 1013 1014 1015
ifneq ($(CONFIG_ARCH_SOCFPGA),)
quiet_cmd_socboot = SOCBOOT $@
cmd_socboot = cat	spl/u-boot-spl-dtb.sfp spl/u-boot-spl-dtb.sfp	\
			spl/u-boot-spl-dtb.sfp spl/u-boot-spl-dtb.sfp	\
			u-boot-dtb.img > $@ || rm -f $@
u-boot-with-spl-dtb.sfp: spl/u-boot-spl-dtb.sfp u-boot-dtb.img FORCE
	$(call if_changed,socboot)
endif

1016 1017 1018 1019 1020 1021
# x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
# reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
# the middle.
ifneq ($(CONFIG_X86_RESET_VECTOR),)
rom: u-boot.rom FORCE

1022
IFDTOOL=$(objtree)/tools/ifdtool
1023 1024 1025
IFDTOOL_FLAGS  = -f 0:$(objtree)/u-boot.dtb
IFDTOOL_FLAGS += -m 0x$(shell $(NM) u-boot |grep _dt_ucode_base_size |cut -d' ' -f1)
IFDTOOL_FLAGS += -U $(CONFIG_SYS_TEXT_BASE):$(objtree)/u-boot.bin
1026
IFDTOOL_FLAGS += -w $(CONFIG_SYS_X86_START16):$(objtree)/u-boot-x86-16bit.bin
1027
IFDTOOL_FLAGS += -C
1028 1029 1030 1031 1032 1033 1034

ifneq ($(CONFIG_HAVE_INTEL_ME),)
IFDTOOL_ME_FLAGS  = -D $(srctree)/board/$(BOARDDIR)/descriptor.bin
IFDTOOL_ME_FLAGS += -i ME:$(srctree)/board/$(BOARDDIR)/me.bin
endif

ifneq ($(CONFIG_HAVE_MRC),)
1035
IFDTOOL_FLAGS += -w $(CONFIG_X86_MRC_ADDR):$(srctree)/board/$(BOARDDIR)/mrc.bin
1036 1037
endif

1038 1039 1040 1041 1042 1043 1044 1045
ifneq ($(CONFIG_HAVE_FSP),)
IFDTOOL_FLAGS += -w $(CONFIG_FSP_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_FSP_FILE)
endif

ifneq ($(CONFIG_HAVE_CMC),)
IFDTOOL_FLAGS += -w $(CONFIG_CMC_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_CMC_FILE)
endif

1046 1047
ifneq ($(CONFIG_HAVE_VGA_BIOS),)
IFDTOOL_FLAGS += -w $(CONFIG_VGA_BIOS_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_VGA_BIOS_FILE)
1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059
endif

quiet_cmd_ifdtool = IFDTOOL $@
cmd_ifdtool  = $(IFDTOOL) -c -r $(CONFIG_ROM_SIZE) u-boot.tmp;
ifneq ($(CONFIG_HAVE_INTEL_ME),)
cmd_ifdtool += $(IFDTOOL) $(IFDTOOL_ME_FLAGS) u-boot.tmp;
endif
cmd_ifdtool += $(IFDTOOL) $(IFDTOOL_FLAGS) u-boot.tmp;
cmd_ifdtool += mv u-boot.tmp $@

u-boot.rom: u-boot-x86-16bit.bin u-boot-dtb.bin
	$(call if_changed,ifdtool)
1060 1061 1062 1063 1064 1065

OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
u-boot-x86-16bit.bin: u-boot FORCE
	$(call if_changed,objcopy)
endif

1066 1067 1068
ifneq ($(CONFIG_SUNXI),)
OBJCOPYFLAGS_u-boot-sunxi-with-spl.bin = -I binary -O binary \
				   --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff
1069 1070
u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin \
			u-boot$(if $(CONFIG_OF_CONTROL),-dtb,).img FORCE
1071 1072 1073
	$(call if_changed,pad_cat)
endif

1074
ifneq ($(CONFIG_TEGRA),)
1075 1076 1077
OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
	$(call if_changed,pad_cat)
1078 1079

ifeq ($(CONFIG_OF_SEPARATE),y)
1080 1081
u-boot-dtb-tegra.bin: u-boot-nodtb-tegra.bin dts/dt.dtb FORCE
	$(call if_changed,cat)
1082
endif
1083 1084
endif

1085 1086 1087 1088
OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
u-boot-app.efi: u-boot FORCE
	$(call if_changed,zobjcopy)

1089 1090 1091 1092 1093 1094 1095 1096 1097
u-boot-dtb.bin.o: u-boot-dtb.bin FORCE
	$(call if_changed,efipayload)

u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
	$(call if_changed_dep,cpp_lds)

# Rule to link the EFI payload which contains a stub and a U-Boot binary
quiet_cmd_u-boot_payload ?= LD      $@
      cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1098
      -T u-boot-payload.lds arch/x86/cpu/call32.o \
1099 1100 1101 1102 1103 1104 1105 1106 1107 1108
      lib/efi/efi.o lib/efi/efi_stub.o u-boot-dtb.bin.o \
      $(addprefix arch/$(ARCH)/lib/efi/,$(EFISTUB))

u-boot-payload: u-boot-dtb.bin.o u-boot-payload.lds FORCE
	$(call if_changed,u-boot_payload)

OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
u-boot-payload.efi: u-boot-payload FORCE
	$(call if_changed,zobjcopy)

1109 1110
u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
	$(call if_changed,cat)
1111

1112 1113 1114 1115
#Add a target to create boot binary having SPL binary in PBI format
#concatenated with u-boot binary. It is need by PowerPC SoC having
#internal SRAM <= 512KB.
MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1116 1117
		-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
		-A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1118 1119 1120 1121

spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
	$(call if_changed,mkimage)

1122 1123 1124 1125 1126 1127
ifeq ($(ARCH),arm)
UBOOT_BINLOAD := u-boot.img
else
UBOOT_BINLOAD := u-boot.bin
endif

1128 1129 1130
OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
			  --gap-fill=0xff

1131
u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1132 1133
	$(call if_changed,pad_cat)

1134 1135 1136 1137 1138
# PPC4xx needs the SPL at the end of the image, since the reset vector
# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
# and need to introduce a new build target with the full blown U-Boot
# at the start padded up to the start of the SPL image. And then concat
# the SPL image to the end.
1139 1140 1141 1142 1143

OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
	--pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
	$(call if_changed,pad_cat)
1144

1145 1146 1147 1148 1149
# Create a new ELF from a raw binary file.  This is useful for arm64
# where static relocation needs to be performed on the raw binary,
# but certain simulators only accept an ELF file (but don't do the
# relocation).
# FIXME refactor dts/Makefile to share target/arch detection
1150
u-boot.elf: u-boot.bin
1151
	@$(OBJCOPY)  -B aarch64 -I binary -O elf64-littleaarch64 \
1152 1153
		$< u-boot-elf.o
	@$(LD) u-boot-elf.o -o $@ \
1154 1155 1156
		--defsym=_start=$(CONFIG_SYS_TEXT_BASE) \
		-Ttext=$(CONFIG_SYS_TEXT_BASE)

1157 1158 1159 1160 1161 1162 1163
# Rule to link u-boot
# May be overridden by arch/$(ARCH)/config.mk
quiet_cmd_u-boot__ ?= LD      $@
      cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
      -T u-boot.lds $(u-boot-init)                             \
      --start-group $(u-boot-main) --end-group                 \
      $(PLATFORM_LIBS) -Map u-boot.map
1164

1165 1166
quiet_cmd_smap = GEN     common/system_map.o
cmd_smap = \
1167 1168 1169 1170
	smap=`$(call SYSTEM_MAP,u-boot) | \
		awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
	$(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
		-c $(srctree)/common/system_map.c -o common/system_map.o
1171 1172 1173 1174 1175

u-boot:	$(u-boot-init) $(u-boot-main) u-boot.lds
	$(call if_changed,u-boot__)
ifeq ($(CONFIG_KALLSYMS),y)
	$(call cmd,smap)
1176
	$(call cmd,u-boot__) common/system_map.o
1177
endif
wdenk's avatar
wdenk committed
1178

1179
# The actual objects are generated when descending,
1180 1181
# make sure no implicit rule kicks in
$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1182

1183 1184 1185 1186 1187
# Handle descending into subdirectories listed in $(vmlinux-dirs)
# Preset locale variables to speed up the build process. Limit locale
# tweaks to this spot to avoid wrong language settings when running
# make menuconfig etc.
# Error messages still appears in the original language
1188

1189
PHONY += $(u-boot-dirs)
1190
$(u-boot-dirs): prepare scripts
1191 1192
	$(Q)$(MAKE) $(build)=$@

1193
tools: prepare
1194 1195 1196 1197 1198
# The "tools" are needed early
$(filter-out tools, $(u-boot-dirs)): tools
# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
# is "yes"), so compile examples after U-Boot is compiled.
examples: $(filter-out examples, $(u-boot-dirs))
1199

1200 1201 1202 1203 1204
define filechk_uboot.release
	echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
endef

# Store (new) UBOOTRELEASE string in include/config/uboot.release
1205
include/config/uboot.release: include/config/auto.conf FORCE
1206 1207 1208
	$(call filechk,uboot.release)


1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220
# Things we need to do before we recursively start building the kernel
# or the modules are listed in "prepare".
# A multi level approach is used. prepareN is processed before prepareN-1.
# archprepare is used in arch Makefiles and when processed asm symlink,
# version.h and scripts_basic is processed / created.

# Listed in dependency order
PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3

# prepare3 is used to check if we are building in a separate output directory,
# and if so do:
# 1) Check that make has not been executed in the kernel src $(srctree)
1221
prepare3: include/config/uboot.release
1222
ifneq ($(KBUILD_SRC),)
1223 1224
	@$(kecho) '  Using $(srctree) as source for U-Boot'
	$(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1225 1226 1227 1228
		echo >&2 "  $(srctree) is not clean, please run 'make mrproper'"; \
		echo >&2 "  in the '$(srctree)' directory.";\
		/bin/false; \
	fi;
1229
endif
wdenk's avatar
wdenk committed
1230

1231 1232 1233
# prepare2 creates a makefile if using a separate output directory
prepare2: prepare3 outputmakefile

1234 1235
prepare1: prepare2 $(version_h) $(timestamp_h) \
                   include/config/auto.conf
1236
ifeq ($(CONFIG_HAVE_GENERIC_BOARD),)
1237 1238 1239 1240 1241 1242
ifeq ($(CONFIG_SYS_GENERIC_BOARD),y)
	@echo >&2 "  Your architecture does not support generic board."
	@echo >&2 "  Please undefine CONFIG_SYS_GENERIC_BOARD in your board config file."
	@/bin/false
endif
endif
1243 1244 1245 1246
ifeq ($(wildcard $(LDSCRIPT)),)
	@echo >&2 "  Could not find linker script."
	@/bin/false
endif
1247

1248 1249
archprepare: prepare1 scripts_basic

1250 1251
prepare0: archprepare FORCE
	$(Q)$(MAKE) $(build)=.
1252

1253 1254
# All the preparing..
prepare: prepare0
wdenk's avatar
wdenk committed
1255

1256 1257 1258 1259 1260 1261 1262 1263 1264 1265
# Generate some files
# ---------------------------------------------------------------------------

define filechk_version.h
	(echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
	echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
	echo \#define CC_VERSION_STRING \"$$($(CC) --version | head -n 1)\"; \
	echo \#define LD_VERSION_STRING \"$$($(LD) --version | head -n 1)\"; )
endef

1266 1267 1268 1269
# The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
# The BSD date on the other hand behaves different and would produce errors
# with the misused '-d' switch.  Respect that and search a working date with
# well known pre- and suffixes for the GNU variant of date.
1270
define filechk_timestamp.h
1271 1272
	(if test -n "$${SOURCE_DATE_EPOCH}"; then \
		SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283
		DATE=""; \
		for date in gdate date.gnu date; do \
			$${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
		done; \
		if test -n "$${DATE}"; then \
			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
		else \
			return 42; \
		fi; \
1284 1285 1286 1287 1288
	else \
		LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
		LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
		LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
	fi)
1289 1290
endef

1291
$(version_h): include/config/uboot.release FORCE
1292 1293 1294 1295 1296
	$(call filechk,version.h)

$(timestamp_h): $(srctree)/Makefile FORCE
	$(call filechk,timestamp.h)

1297
# ---------------------------------------------------------------------------
1298
quiet_cmd_cpp_lds = LDS     $@
1299 1300
cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
		-D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
1301

1302
u-boot.lds: $(LDSCRIPT) prepare FORCE
1303
	$(call if_changed_dep,cpp_lds)
1304

1305 1306
spl/u-boot-spl.bin: spl/u-boot-spl
	@:
1307
spl/u-boot-spl: tools prepare $(if $(CONFIG_OF_SEPARATE),dts/dt.dtb)
1308
	$(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1309

1310 1311 1312
spl/sunxi-spl.bin: spl/u-boot-spl
	@:

1313 1314 1315
spl/u-boot-spl-dtb.sfp: spl/u-boot-spl
	@:

1316
tpl/u-boot-tpl.bin: tools prepare
1317
	$(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1318

1319
TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1320

1321 1322 1323
FIND := find
FINDFLAGS := -L

1324
tags ctags:
1325
		ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1326
						-name '*.[chS]' -print`
1327
		ln -s ctags tags
wdenk's avatar
wdenk committed
1328 1329

etags:
1330
		etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1331
						-name '*.[chS]' -print`
Li Yang's avatar
Li Yang committed
1332
cscope:
1333 1334
		$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
						cscope.files
Li Yang's avatar
Li Yang committed
1335
		cscope -b -q -k
wdenk's avatar
wdenk committed
1336

1337 1338
SYSTEM_MAP = \
		$(NM) $1 | \
wdenk's avatar
wdenk committed
1339
		grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1340
		LC_ALL=C sort
1341
System.map:	u-boot
1342
		@$(call SYSTEM_MAP,$<) > $@
wdenk's avatar
wdenk committed
1343

1344 1345 1346 1347 1348 1349
checkdtc:
	@if test $(call dtc-version) -lt 0104; then \
		echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \
		false; \
	fi

wdenk's avatar
wdenk committed
1350 1351
#########################################################################

1352 1353
# ARM relocations should all be R_ARM_RELATIVE (32-bit) or
# R_AARCH64_RELATIVE (64-bit).
1354
checkarmreloc: u-boot
1355 1356 1357 1358 1359 1360 1361
	@RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
		grep R_A | sort -u`"; \
	if test "$$RELOC" != "R_ARM_RELATIVE" -a \
		 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
		echo "$< contains unexpected relocations: $$RELOC"; \
		false; \
	fi
1362

1363
env: scripts_basic
1364
	$(Q)$(MAKE) $(build)=tools/$@
1365

1366 1367 1368
tools-only: scripts_basic $(version_h) $(timestamp_h)
	$(Q)$(MAKE) $(build)=tools

1369
tools-all: export HOST_TOOLS_ALL=y
1370
tools-all: env tools ;
1371

1372 1373 1374
cross_tools: export CROSS_BUILD_TOOLS=y
cross_tools: tools ;

1375 1376
.PHONY : CHANGELOG
CHANGELOG:
1377 1378
	git log --no-merges U-Boot-1_1_5.. | \
	unexpand -a | sed -e 's/\s\s*$$//' > $@
1379

1380
include/license.h: tools/bin2header COPYING
1381
	cat COPYING | gzip -9 -c | ./tools/bin2header license_gzip > include/license.h
wdenk's avatar
wdenk committed
1382 1383
#########################################################################

1384 1385 1386 1387 1388 1389 1390 1391
###
# Cleaning is done on three levels.
# make clean     Delete most generated files
#                Leave enough to build external modules
# make mrproper  Delete the current configuration, and all generated files
# make distclean Remove editor backup files, patch leftover files and the like

# Directories & files removed with 'make clean'
1392 1393
CLEAN_DIRS  += $(MODVERDIR) \
	       $(foreach d, spl tpl, $(patsubst %,$d/%, \
1394
			$(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1395 1396

CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
Bo Shen's avatar
Bo Shen committed
1397
	       boot* u-boot* MLO* SPL System.map
1398 1399

# Directories & files removed with 'make mrproper'
1400
MRPROPER_DIRS  += include/config include/generated spl tpl \
1401
		  .tmp_objdiff
1402 1403
MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
		  ctags etags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
1404 1405 1406 1407 1408 1409

# clean - Delete most, but leave enough to build external modules
#
clean: rm-dirs  := $(CLEAN_DIRS)
clean: rm-files := $(CLEAN_FILES)

1410
clean-dirs	:= $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434

clean-dirs      := $(addprefix _clean_, $(clean-dirs) doc/DocBook)

PHONY += $(clean-dirs) clean archclean
$(clean-dirs):
	$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)

# TODO: Do not use *.cfgtmp
clean: $(clean-dirs)
	$(call cmd,rmdirs)
	$(call cmd,rmfiles)
	@find $(<