Makefile 52.4 KB
Newer Older
1 2 3 4
#
# SPDX-License-Identifier:	GPL-2.0+
#

Tom Rini's avatar
Tom Rini committed
5
VERSION = 2016
Tom Rini's avatar
Tom Rini committed
6
PATCHLEVEL = 09
Wolfgang Denk's avatar
Wolfgang Denk committed
7
SUBLEVEL =
Tom Rini's avatar
Tom Rini committed
8
EXTRAVERSION = -rc2
9
NAME =
10

11 12 13 14 15 16
# *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.

17 18 19 20
# 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)
21 22 23 24 25 26 27

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

28 29 30
# Avoid interference with shell env settings
unexport GREP_OPTIONS

31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46
# 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.

47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69
# 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.
#
70 71 72 73 74 75 76 77 78 79
# 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

80 81 82 83 84 85 86
ifeq ($(KBUILD_VERBOSE),1)
  quiet =
  Q =
else
  quiet=quiet_
  Q = @
endif
87

88 89 90 91 92 93
# 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$(MAKEFLAGS))),)
  quiet=silent_
94
endif
95 96 97
else					# make-3.8x
ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
  quiet=silent_
98 99 100
endif
endif

101
export quiet Q KBUILD_VERBOSE
102

103 104 105 106 107
# 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/"
108
#
109 110 111 112 113
# 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
114
#
115 116 117 118 119 120
# 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),)
121

122 123
# OK, Make called in directory where kernel src resides
# Do we want to locate output files in a separate directory?
124
ifeq ("$(origin O)", "command line")
125 126 127 128 129 130 131 132 133 134 135 136 137 138
  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)
139 140
KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
								&& /bin/pwd)
141
$(if $(KBUILD_OUTPUT),, \
142
     $(error failed to create output directory "$(saved-output)"))
143 144 145 146 147 148 149

PHONY += $(MAKECMDGOALS) sub-make

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

sub-make: FORCE
150 151
	$(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
	-f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
152 153 154 155 156 157 158 159 160

# 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),)

161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193
# 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

194 195
# If building an external module we do not care about the all: rule
# but instead _all depend on modules
196
PHONY += all
197
ifeq ($(KBUILD_EXTMOD),)
198
_all: all
199
else
200
_all: modules
201
endif
202

203 204 205 206 207 208 209 210 211 212 213 214
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		:= .
215 216 217 218 219 220 221
src		:= $(srctree)
obj		:= $(objtree)

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

export srctree objtree VPATH

222 223 224
# Make sure CDPATH settings don't interfere
unexport CDPATH

wdenk's avatar
wdenk committed
225 226 227
#########################################################################

HOSTARCH := $(shell uname -m | \
Graeme Russ's avatar
Graeme Russ committed
228
	sed -e s/i.86/x86/ \
wdenk's avatar
wdenk committed
229 230 231
	    -e s/sun4u/sparc64/ \
	    -e s/arm.*/arm/ \
	    -e s/sa110/arm/ \
Kumar Gala's avatar
Kumar Gala committed
232 233
	    -e s/ppc64/powerpc/ \
	    -e s/ppc/powerpc/ \
234 235
	    -e s/macppc/powerpc/\
	    -e s/sh.*/sh/)
wdenk's avatar
wdenk committed
236

237
HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
wdenk's avatar
wdenk committed
238 239
	    sed -e 's/\(cygwin\).*/cygwin/')

240
export	HOSTARCH HOSTOS
wdenk's avatar
wdenk committed
241

242
#########################################################################
243

244
# set default to nothing for native builds
Wolfgang Denk's avatar
Wolfgang Denk committed
245
ifeq ($(HOSTARCH),$(ARCH))
246
CROSS_COMPILE ?=
247 248
endif

Masahiro Yamada's avatar
Masahiro Yamada committed
249 250 251
KCONFIG_CONFIG	?= .config
export KCONFIG_CONFIG

252 253 254 255 256
# 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)

257 258
HOSTCC       = cc
HOSTCXX      = c++
259 260
HOSTCFLAGS   = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
		$(if $(CONFIG_TOOLS_DEBUG),-g)
261 262
HOSTCXXFLAGS = -O2

263 264 265 266 267 268 269 270 271 272
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.
273
#
274 275 276
# 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.
277
#
278 279 280 281 282 283 284 285 286 287 288 289
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")
290 291 292 293 294

# 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")
295 296
endif

297 298 299 300 301 302
# Decide whether to build built-in, modular, or both.
# Normally, just do built-in.

KBUILD_MODULES :=
KBUILD_BUILTIN := 1

303 304 305 306
# 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.
307 308 309 310 311

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

312 313 314
# 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
315 316 317 318 319 320 321 322 323 324 325 326 327

# 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

Masahiro Yamada's avatar
Masahiro Yamada committed
328
# We need some generic definitions (do not try to remake the file).
329 330
scripts/Kbuild.include: ;
include scripts/Kbuild.include
331

332
# Make variables (CC, etc...)
wdenk's avatar
wdenk committed
333

334 335 336 337
AS		= $(CROSS_COMPILE)as
# Always use GNU ld
ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
LD		= $(CROSS_COMPILE)ld.bfd
338
else
339 340 341 342 343 344 345 346 347 348 349
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
350
PERL		= perl
Masahiro Yamada's avatar
Masahiro Yamada committed
351
PYTHON		= python
352 353 354 355 356 357
DTC		= dtc
CHECK		= sparse

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

358
KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
359 360 361 362 363 364

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

365 366 367
# 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)
368

369
export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
370
export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
371 372
export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
Masahiro Yamada's avatar
Masahiro Yamada committed
373
export MAKE AWK PERL PYTHON
374
export HOSTCXX HOSTCXXFLAGS DTC CHECK CHECKFLAGS
375

376
export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
377 378
export KBUILD_CFLAGS KBUILD_AFLAGS

379 380 381 382 383 384 385
# 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

386 387 388
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
389 390 391 392 393 394 395 396 397 398 399 400 401 402 403
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 ;

404 405 406 407 408 409 410 411 412
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)
413
endif
414

415 416 417 418 419 420 421 422
# 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).

423 424 425
version_h := include/generated/version_autogenerated.h
timestamp_h := include/generated/timestamp_autogenerated.h

426
no-dot-config-targets := clean clobber mrproper distclean \
427
			 help %docs check% coccicheck \
428
			 ubootversion backup tests
429 430 431 432 433 434 435 436 437 438

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
439

440 441 442
ifeq ($(KBUILD_EXTMOD),)
        ifneq ($(filter config %config,$(MAKECMDGOALS)),)
                config-targets := 1
443
                ifneq ($(words $(MAKECMDGOALS)),1)
444 445 446
                        mixed-targets := 1
                endif
        endif
447
endif
wdenk's avatar
wdenk committed
448

449 450 451 452
ifeq ($(mixed-targets),1)
# ===========================================================================
# We're called with mixed targets (*config and build targets).
# Handle them one by one.
453

454
PHONY += $(MAKECMDGOALS) __build_one_by_one
455

456
$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
457 458
	@:

459
__build_one_by_one:
460 461 462 463
	$(Q)set -e; \
	for i in $(MAKECMDGOALS); do \
		$(MAKE) -f $(srctree)/Makefile $$i; \
	done
464

465 466 467 468 469
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
470

Masahiro Yamada's avatar
Masahiro Yamada committed
471 472
KBUILD_DEFCONFIG := sandbox_defconfig
export KBUILD_DEFCONFIG KBUILD_KCONFIG
473

Masahiro Yamada's avatar
Masahiro Yamada committed
474
config: scripts_basic outputmakefile FORCE
475
	$(Q)$(MAKE) $(build)=scripts/kconfig $@
Masahiro Yamada's avatar
Masahiro Yamada committed
476 477

%config: scripts_basic outputmakefile FORCE
478
	$(Q)$(MAKE) $(build)=scripts/kconfig $@
479

480 481 482 483
else
# ===========================================================================
# Build targets only - this includes vmlinux, arch specific targets, clean
# targets and others. In general all targets except *config targets.
484

485 486
ifeq ($(dot-config),1)
# Read in config
Masahiro Yamada's avatar
Masahiro Yamada committed
487 488 489 490 491 492 493 494 495 496 497 498 499 500 501
-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
502 503 504 505 506 507 508 509 510
	@# 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
Masahiro Yamada's avatar
Masahiro Yamada committed
511

512 513
-include include/autoconf.mk
-include include/autoconf.mk.dep
wdenk's avatar
wdenk committed
514

Masahiro Yamada's avatar
Masahiro Yamada committed
515 516 517 518
# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
# is up-to-date. When we switch to a different board configuration, old CONFIG
# macros are still remaining in include/config/auto.conf. Without the following
# gimmick, wrong config.mk would be included leading nasty warnings/errors.
519 520 521 522 523
ifneq ($(wildcard $(KCONFIG_CONFIG)),)
ifneq ($(wildcard include/config/auto.conf),)
autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
						include/config/auto.conf)
ifeq ($(autoconf_is_old),)
524 525
include config.mk
include arch/$(ARCH)/Makefile
526
endif
527 528
endif
endif
529

530 531 532 533 534
# 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
535
	#LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
536 537
	ifdef CONFIG_SYS_LDSCRIPT
		# need to strip off double quotes
538
		LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
539 540 541
	endif
endif

542
# If there is no specified link script, we look in a number of places for it
543 544
ifndef LDSCRIPT
	ifeq ($(wildcard $(LDSCRIPT)),)
545
		LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
546 547
	endif
	ifeq ($(wildcard $(LDSCRIPT)),)
548
		LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
549
	endif
550
	ifeq ($(wildcard $(LDSCRIPT)),)
551
		LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
552
	endif
553 554
endif

555
else
Masahiro Yamada's avatar
Masahiro Yamada committed
556 557
# Dummy target needed, because used as prerequisite
include/config/auto.conf: ;
558 559
endif # $(dot-config)

560 561 562 563 564 565 566 567
#
# Xtensa linker script cannot be preprocessed with -ansi because of
# preprocessor operations on strings that don't make C identifiers.
#
ifeq ($(CONFIG_XTENSA),)
LDPPFLAGS	+= -ansi
endif

568 569 570 571 572
ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
KBUILD_CFLAGS	+= -Os
else
KBUILD_CFLAGS	+= -O2
endif
573 574

KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
575
KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
576 577 578 579 580 581 582

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
583 584 585
ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
	KBUILD_CFLAGS += -fstack-usage
endif
586 587 588 589 590 591 592 593 594 595

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

596 597 598
# Prohibit date/time macros, which would make the build non-deterministic
KBUILD_CFLAGS   += $(call cc-option,-Werror=date-time)

599
include scripts/Makefile.extrawarn
600

601 602 603 604 605
# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
KBUILD_CPPFLAGS += $(KCPPFLAGS)
KBUILD_AFLAGS += $(KAFLAGS)
KBUILD_CFLAGS += $(KCFLAGS)

606 607
# Use UBOOTINCLUDE when you must reference the include/ directory.
# Needed to be compatible with the O= option
608 609 610
UBOOTINCLUDE    := \
		-Iinclude \
		$(if $(KBUILD_SRC), -I$(srctree)/include) \
611 612
		$(if $(CONFIG_SYS_THUMB_BUILD), $(if $(CONFIG_HAS_THUMB2),, \
			-I$(srctree)/arch/$(ARCH)/thumb1/include),) \
Masahiro Yamada's avatar
Masahiro Yamada committed
613 614
		-I$(srctree)/arch/$(ARCH)/include \
		-include $(srctree)/include/linux/kconfig.h
615 616 617 618 619

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

# FIX ME
620 621
cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
							$(NOSTDINC_FLAGS)
622 623
c_flags := $(KBUILD_CFLAGS) $(cpp_flags)

wdenk's avatar
wdenk committed
624 625 626
#########################################################################
# U-Boot objects....order is important (i.e. start must be first)

627
HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
628

629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648
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-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
libs-y += drivers/mtd/spi/
libs-y += drivers/net/
libs-y += drivers/net/phy/
libs-y += drivers/pci/
libs-y += drivers/power/ \
649
	drivers/power/domain/ \
650 651 652
	drivers/power/fuel_gauge/ \
	drivers/power/mfd/ \
	drivers/power/pmic/ \
653 654
	drivers/power/battery/ \
	drivers/power/regulator/
655 656 657
libs-y += drivers/spi/
libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
658
libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/
659
libs-y += drivers/serial/
660
libs-y += drivers/usb/dwc3/
661
libs-y += drivers/usb/common/
662
libs-y += drivers/usb/emul/
663 664
libs-y += drivers/usb/eth/
libs-y += drivers/usb/gadget/
665
libs-y += drivers/usb/gadget/udc/
666 667 668 669 670
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/
671
libs-y += cmd/
672 673 674 675
libs-y += common/
libs-$(CONFIG_API) += api/
libs-$(CONFIG_HAS_POST) += post/
libs-y += test/
Simon Glass's avatar
Simon Glass committed
676
libs-y += test/dm/
677
libs-$(CONFIG_UT_ENV) += test/env/
678
libs-$(CONFIG_UT_OVERLAY) += test/overlay/
679

680
libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
681 682

libs-y := $(sort $(libs-y))
683

684 685 686 687 688 689 690 691
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)
692

693

694
# Add GCC lib
695
ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
696
PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
697
else
698
PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
699 700 701
endif
PLATFORM_LIBS += $(PLATFORM_LIBGCC)
export PLATFORM_LIBS
702
export PLATFORM_LIBGCC
703

704 705 706 707
# Special flags for CPP when processing the linker script.
# Pass the version down so we can handle backwards compatibility
# on the fly.
LDPPFLAGS += \
708
	-include $(srctree)/include/u-boot/u-boot.lds.h \
709
	-DCPUDIR=$(CPUDIR) \
710 711 712
	$(shell $(LD) --version | \
	  sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')

713
#########################################################################
wdenk's avatar
wdenk committed
714 715
#########################################################################

716 717 718
ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
BOARD_SIZE_CHECK = \
	@actual=`wc -c $@ | awk '{print $$1}'`; \
719
	limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
720
	if test $$actual -gt $$limit; then \
721 722 723 724
		echo "$@ exceeds file size limit:" >&2 ; \
		echo "  limit:  $$limit bytes" >&2 ; \
		echo "  actual: $$actual bytes" >&2 ; \
		echo "  excess: $$((actual - limit)) bytes" >&2; \
725 726 727 728 729 730
		exit 1; \
	fi
else
BOARD_SIZE_CHECK =
endif

731 732 733 734 735 736
# 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 ' '); \
737
	tools/relocate-rela $(2) $(3) $$start $$end
738 739 740 741
else
DO_STATIC_RELA =
endif

742
# Always append ALL so that arch config.mk's can add custom ones
743
ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map u-boot.cfg binary_size_check
744 745

ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
746 747 748
ifeq ($(CONFIG_SPL_FSL_PBL),y)
ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
else
749 750 751
ifneq ($(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
752
ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
753
endif
754
endif
755 756 757
ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
758
ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
759 760 761
ifeq ($(CONFIG_SPL_FRAMEWORK),y)
ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
endif
762
ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
763
ifneq ($(CONFIG_SPL_TARGET),)
764
ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
765
endif
766
ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
767
ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
768
ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
769

770 771 772
ifneq ($(BUILD_ROM),)
ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
endif
773

774
# enable combined SPL/u-boot/dtb rules for tegra
775
ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy)
776
ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
777
ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin
778
endif
779

780 781 782 783 784
# Add optional build target if defined in board/cpu/soc headers
ifneq ($(CONFIG_BUILD_TARGET),)
ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
endif

785
LDFLAGS_u-boot += $(LDFLAGS_FINAL)
786 787 788
ifneq ($(CONFIG_SYS_TEXT_BASE),)
LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
endif
789

790
# Normally we fill empty space with 0xff
791
quiet_cmd_objcopy = OBJCOPY $@
792 793 794 795 796 797
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)) $< $@
798

799 800 801
quiet_cmd_efipayload = OBJCOPY $@
cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@

802
quiet_cmd_mkimage = MKIMAGE $@
803 804 805
cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
	$(if $(KBUILD_VERBOSE:1=), >/dev/null)

806 807 808
quiet_cmd_cat = CAT     $@
cmd_cat = cat $(filter-out $(PHONY), $^) > $@

809 810 811 812 813
append = cat $(filter-out $< $(PHONY), $^) >> $@

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

814
all:		$(ALL-y)
815
ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y)
816 817 818 819 820 821
	@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
822

823
PHONY += dtbs
824 825 826
dtbs: dts/dt.dtb
	@:
dts/dt.dtb: checkdtc u-boot
827
	$(Q)$(MAKE) $(build)=dts dtbs
828

829 830 831 832 833
quiet_cmd_copy = COPY    $@
      cmd_copy = cp $< $@

ifeq ($(CONFIG_OF_SEPARATE),y)
u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
834
	$(call if_changed,cat)
835

836 837 838 839 840 841 842
u-boot.bin: u-boot-dtb.bin FORCE
	$(call if_changed,copy)
else
u-boot.bin: u-boot-nodtb.bin FORCE
	$(call if_changed,copy)
endif

843 844 845
%.imx: %.bin
	$(Q)$(MAKE) $(build)=arch/arm/imx-common $@

846 847 848
u-boot.dtb: dts/dt.dtb
	$(call cmd,copy)

849
OBJCOPYFLAGS_u-boot.hex := -O ihex
850

851
OBJCOPYFLAGS_u-boot.srec := -O srec
wdenk's avatar
wdenk committed
852

853 854 855
u-boot.hex u-boot.srec: u-boot FORCE
	$(call if_changed,objcopy)

856
OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
857
		$(if $(CONFIG_X86_RESET_VECTOR),-R .start16 -R .resetvec)
858

859 860
binary_size_check: u-boot-nodtb.bin FORCE
	@file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
861
	map_size=$(shell cat u-boot.map | \
862
		awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
863
		| sed 's/0X//g' \
864
		| bc); \
865 866
	if [ "" != "$$map_size" ]; then \
		if test $$map_size -ne $$file_size; then \
867
			echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
868
			echo "  but u-boot-nodtb.bin shows $$file_size" >&2 ; \
869 870 871 872
			exit 1; \
		fi \
	fi

873
u-boot-nodtb.bin: u-boot FORCE
874 875 876
	$(call if_changed,objcopy)
	$(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
	$(BOARD_SIZE_CHECK)
wdenk's avatar
wdenk committed
877

878
u-boot.ldr:	u-boot
879
		$(CREATE_LDR_ENV)
880
		$(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
881
		$(BOARD_SIZE_CHECK)
882

883 884 885
OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex

OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
886

887 888
u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
	$(call if_changed,objcopy)
889

890 891 892 893 894 895 896 897
#
# 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

898 899 900
# 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 \
901
	-DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
902

903 904 905 906
ifdef CONFIG_SPL_LOAD_FIT
MKIMAGEFLAGS_u-boot.img = -f auto -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" -E \
907
	$(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
908
else
909 910 911
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"
912
endif
913

914 915
MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)

916 917
MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
	-T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
918

919
MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
920
	-T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
921

922 923
MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
		-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
924

925 926
u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl: \
		$(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
927 928
	$(call if_changed,mkimage)

929
u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
930 931
	$(call if_changed,mkimage)

932 933
u-boot.sha1:	u-boot.bin
		tools/ubsha1 u-boot.bin
934

935
u-boot.dis:	u-boot
wdenk's avatar
wdenk committed
936 937
		$(OBJDUMP) -d $< > $@

938
u-boot.cfg:	include/config.h FORCE
939 940
	$(call if_changed,cpp_cfg)

941
ifdef CONFIG_TPL
942
SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
943
else
944
SPL_PAYLOAD := u-boot.bin
945
endif
946

947 948 949 950
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)
951

952 953 954 955 956 957 958
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)

959
lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
960 961 962 963
	$(call if_changed,objcopy)

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

964
lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
965 966
	$(call if_changed,objcopy)

967
lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
968 969 970 971
	$(call if_changed,cat)

CLEAN_FILES += lpc32xx-*

972 973 974 975
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)
976

977 978 979 980
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
981
	$(Q)$(MAKE) $(build)=arch/arm/imx-common $@
982

983 984 985 986
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)
987

988 989 990 991 992
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)
993

994
OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
995 996
u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
	$(call if_changed,pad_cat)
997

998 999
u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
	$(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1000
u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1001
	$(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1002

1003 1004 1005 1006 1007 1008
# 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
1009 1010 1011 1012 1013 1014 1015 1016 1017
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)
1018

1019 1020
ifneq ($(CONFIG_ARCH_SOCFPGA),)
quiet_cmd_socboot = SOCBOOT $@
1021 1022 1023 1024
cmd_socboot = cat	spl/u-boot-spl.sfp spl/u-boot-spl.sfp	\
			spl/u-boot-spl.sfp spl/u-boot-spl.sfp	\
			u-boot.img > $@ || rm -f $@
u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1025 1026 1027
	$(call if_changed,socboot)
endif

1028 1029 1030 1031 1032 1033
# 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

1034
IFDTOOL=$(objtree)/tools/ifdtool
1035 1036
IFDTOOL_FLAGS  = -f 0:$(objtree)/u-boot.dtb
IFDTOOL_FLAGS += -m 0x$(shell $(NM) u-boot |grep _dt_ucode_base_size |cut -d' ' -f1)
1037
IFDTOOL_FLAGS += -U $(CONFIG_SYS_TEXT_BASE):$(objtree)/u-boot-nodtb.bin
1038
IFDTOOL_FLAGS += -w $(CONFIG_SYS_X86_START16):$(objtree)/u-boot-x86-16bit.bin
1039
IFDTOOL_FLAGS += -C
1040 1041 1042 1043 1044 1045 1046

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),)
1047
IFDTOOL_FLAGS += -w $(CONFIG_X86_MRC_ADDR):$(srctree)/board/$(BOARDDIR)/mrc.bin
1048 1049
endif

1050 1051 1052 1053 1054 1055 1056 1057
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

1058 1059
ifneq ($(CONFIG_HAVE_VGA_BIOS),)
IFDTOOL_FLAGS += -w $(CONFIG_VGA_BIOS_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_VGA_BIOS_FILE)
1060 1061
endif

1062 1063 1064 1065
ifneq ($(CONFIG_HAVE_REFCODE),)
IFDTOOL_FLAGS += -w $(CONFIG_X86_REFCODE_ADDR):refcode.bin
endif

1066 1067 1068 1069 1070 1071 1072 1073
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 $@

1074 1075 1076 1077 1078 1079 1080 1081 1082
refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
	$(call if_changed,copy)

quiet_cmd_ldr = LD      $@
cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
	       $(filter-out FORCE,$^) -o $@

u-boot.rom: u-boot-x86-16bit.bin u-boot.bin FORCE \
		$(if $(CONFIG_HAVE_REFCODE),refcode.bin)
1083
	$(call if_changed,ifdtool)
1084 1085 1086 1087 1088 1089

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

1090 1091 1092
ifneq ($(CONFIG_SUNXI),)
OBJCOPYFLAGS_u-boot-sunxi-with-spl.bin = -I binary -O binary \
				   --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff
1093
u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img FORCE
1094 1095 1096
	$(call if_changed,pad_cat)
endif

1097
ifneq ($(CONFIG_TEGRA),)
1098
OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1099
u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1100
	$(call if_changed,pad_cat)
1101

1102
OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1103
u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1104
	$(call if_changed,pad_cat)
1105 1106 1107

u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
	$(call if_changed,copy)
1108 1109
endif

1110 1111 1112 1113
OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
u-boot-app.efi: u-boot FORCE
	$(call if_changed,zobjcopy)

1114
u-boot.bin.o: u-boot.bin FORCE
1115 1116 1117 1118 1119 1120 1121 1122
	$(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 $@ \
1123
      -T u-boot-payload.lds arch/x86/cpu/call32.o \
1124
      lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1125 1126
      $(addprefix arch/$(ARCH)/lib/efi/,$(EFISTUB))

1127
u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1128 1129 1130 1131 1132 1133
	$(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)

1134 1135
u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
	$(call if_changed,cat)
1136

1137 1138 1139 1140
#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:"%"=%) \
1141 1142
		-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
		-A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1143 1144 1145 1146

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

1147 1148 1149 1150 1151 1152
ifeq ($(ARCH),arm)
UBOOT_BINLOAD := u-boot.img
else
UBOOT_BINLOAD := u-boot.bin
endif

1153 1154 1155
OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
			  --gap-fill=0xff

1156
u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1157 1158
	$(call if_changed,pad_cat)

1159 1160 1161 1162 1163
# 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.
1164 1165 1166 1167 1168

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)
1169

1170 1171 1172 1173 1174
# 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
1175
u-boot.elf: u-boot.bin
1176
	@$(OBJCOPY)  -B aarch64 -I binary -O elf64-littleaarch64 \
1177 1178
		$< u-boot-elf.o
	@$(LD) u-boot-elf.o -o $@ \
1179 1180 1181
		--defsym=_start=$(CONFIG_SYS_TEXT_BASE) \
		-Ttext=$(CONFIG_SYS_TEXT_BASE)

1182 1183 1184 1185 1186 1187 1188
# 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
1189

1190 1191
quiet_cmd_smap = GEN     common/system_map.o
cmd_smap = \
1192 1193 1194 1195
	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
1196

1197
u-boot:	$(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1198 1199 1200
	$(call if_changed,u-boot__)
ifeq ($(CONFIG_KALLSYMS),y)
	$(call cmd,smap)
1201
	$(call cmd,u-boot__) common/system_map.o
1202
endif
wdenk's avatar
wdenk committed
1203

1204 1205 1206 1207 1208
quiet_cmd_sym ?= SYM     $@
      cmd_sym ?= $(OBJDUMP) -t $< > $@
u-boot.sym: u-boot FORCE
	$(call if_changed,sym)

1209
# The actual objects are generated when descending,
1210 1211
# make sure no implicit rule kicks in
$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1212

1213 1214 1215 1216 1217
# 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
1218

1219
PHONY += $(u-boot-dirs)