xref: /openbmc/u-boot/Makefile (revision 0f44d33536a50ef65259c322fa2d4a058585caf9)
1 #
2 # SPDX-License-Identifier:	GPL-2.0+
3 #
4 
5 VERSION = 2018
6 PATCHLEVEL = 03
7 SUBLEVEL =
8 EXTRAVERSION = -rc3
9 NAME =
10 
11 # *DOCUMENTATION*
12 # To see a list of typical targets execute "make help"
13 # More info can be located in ./README
14 # Comments in this file are targeted only to the developer, do not
15 # expect to learn how to build the kernel reading this file.
16 
17 # o Do not use make's built-in rules and variables
18 #   (this increases performance and avoids hard-to-debug behaviour);
19 # o Look for make include files relative to root of kernel src
20 MAKEFLAGS += -rR --include-dir=$(CURDIR)
21 
22 # Avoid funny character set dependencies
23 unexport LC_ALL
24 LC_COLLATE=C
25 LC_NUMERIC=C
26 export LC_COLLATE LC_NUMERIC
27 
28 # Avoid interference with shell env settings
29 unexport GREP_OPTIONS
30 
31 # We are using a recursive build, so we need to do a little thinking
32 # to get the ordering right.
33 #
34 # Most importantly: sub-Makefiles should only ever modify files in
35 # their own directory. If in some directory we have a dependency on
36 # a file in another dir (which doesn't happen often, but it's often
37 # unavoidable when linking the built-in.o targets which finally
38 # turn into vmlinux), we will call a sub make in that other dir, and
39 # after that we are sure that everything which is in that other dir
40 # is now up to date.
41 #
42 # The only cases where we need to modify files which have global
43 # effects are thus separated out and done before the recursive
44 # descending is started. They are now explicitly listed as the
45 # prepare rule.
46 
47 # Beautify output
48 # ---------------------------------------------------------------------------
49 #
50 # Normally, we echo the whole command before executing it. By making
51 # that echo $($(quiet)$(cmd)), we now have the possibility to set
52 # $(quiet) to choose other forms of output instead, e.g.
53 #
54 #         quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
55 #         cmd_cc_o_c       = $(CC) $(c_flags) -c -o $@ $<
56 #
57 # If $(quiet) is empty, the whole command will be printed.
58 # If it is set to "quiet_", only the short version will be printed.
59 # If it is set to "silent_", nothing will be printed at all, since
60 # the variable $(silent_cmd_cc_o_c) doesn't exist.
61 #
62 # A simple variant is to prefix commands with $(Q) - that's useful
63 # for commands that shall be hidden in non-verbose mode.
64 #
65 #	$(Q)ln $@ :<
66 #
67 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
68 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
69 #
70 # To put more focus on warnings, be less verbose as default
71 # Use 'make V=1' to see the full commands
72 
73 ifeq ("$(origin V)", "command line")
74   KBUILD_VERBOSE = $(V)
75 endif
76 ifndef KBUILD_VERBOSE
77   KBUILD_VERBOSE = 0
78 endif
79 
80 ifeq ($(KBUILD_VERBOSE),1)
81   quiet =
82   Q =
83 else
84   quiet=quiet_
85   Q = @
86 endif
87 
88 # If the user is running make -s (silent mode), suppress echoing of
89 # commands
90 
91 ifneq ($(filter 4.%,$(MAKE_VERSION)),)	# make-4
92 ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
93   quiet=silent_
94 endif
95 else					# make-3.8x
96 ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
97   quiet=silent_
98 endif
99 endif
100 
101 export quiet Q KBUILD_VERBOSE
102 
103 # kbuild supports saving output files in a separate directory.
104 # To locate output files in a separate directory two syntaxes are supported.
105 # In both cases the working directory must be the root of the kernel src.
106 # 1) O=
107 # Use "make O=dir/to/store/output/files/"
108 #
109 # 2) Set KBUILD_OUTPUT
110 # Set the environment variable KBUILD_OUTPUT to point to the directory
111 # where the output files shall be placed.
112 # export KBUILD_OUTPUT=dir/to/store/output/files/
113 # make
114 #
115 # The O= assignment takes precedence over the KBUILD_OUTPUT environment
116 # variable.
117 
118 # KBUILD_SRC is set on invocation of make in OBJ directory
119 # KBUILD_SRC is not intended to be used by the regular user (for now)
120 ifeq ($(KBUILD_SRC),)
121 
122 # OK, Make called in directory where kernel src resides
123 # Do we want to locate output files in a separate directory?
124 ifeq ("$(origin O)", "command line")
125   KBUILD_OUTPUT := $(O)
126 endif
127 
128 # That's our default target when none is given on the command line
129 PHONY := _all
130 _all:
131 
132 # Cancel implicit rules on top Makefile
133 $(CURDIR)/Makefile Makefile: ;
134 
135 ifneq ($(KBUILD_OUTPUT),)
136 # Invoke a second make in the output directory, passing relevant variables
137 # check that the output directory actually exists
138 saved-output := $(KBUILD_OUTPUT)
139 KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
140 								&& /bin/pwd)
141 $(if $(KBUILD_OUTPUT),, \
142      $(error failed to create output directory "$(saved-output)"))
143 
144 PHONY += $(MAKECMDGOALS) sub-make
145 
146 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
147 	@:
148 
149 sub-make: FORCE
150 	$(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
151 	-f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
152 
153 # Leave processing to above invocation of make
154 skip-makefile := 1
155 endif # ifneq ($(KBUILD_OUTPUT),)
156 endif # ifeq ($(KBUILD_SRC),)
157 
158 # We process the rest of the Makefile if this is the final invocation of make
159 ifeq ($(skip-makefile),)
160 
161 # Do not print "Entering directory ...",
162 # but we want to display it when entering to the output directory
163 # so that IDEs/editors are able to understand relative filenames.
164 MAKEFLAGS += --no-print-directory
165 
166 # Call a source code checker (by default, "sparse") as part of the
167 # C compilation.
168 #
169 # Use 'make C=1' to enable checking of only re-compiled files.
170 # Use 'make C=2' to enable checking of *all* source files, regardless
171 # of whether they are re-compiled or not.
172 #
173 # See the file "Documentation/sparse.txt" for more details, including
174 # where to get the "sparse" utility.
175 
176 ifeq ("$(origin C)", "command line")
177   KBUILD_CHECKSRC = $(C)
178 endif
179 ifndef KBUILD_CHECKSRC
180   KBUILD_CHECKSRC = 0
181 endif
182 
183 # Use make M=dir to specify directory of external module to build
184 # Old syntax make ... SUBDIRS=$PWD is still supported
185 # Setting the environment variable KBUILD_EXTMOD take precedence
186 ifdef SUBDIRS
187   KBUILD_EXTMOD ?= $(SUBDIRS)
188 endif
189 
190 ifeq ("$(origin M)", "command line")
191   KBUILD_EXTMOD := $(M)
192 endif
193 
194 # If building an external module we do not care about the all: rule
195 # but instead _all depend on modules
196 PHONY += all
197 ifeq ($(KBUILD_EXTMOD),)
198 _all: all
199 else
200 _all: modules
201 endif
202 
203 ifeq ($(KBUILD_SRC),)
204         # building in the source tree
205         srctree := .
206 else
207         ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
208                 # building in a subdirectory of the source tree
209                 srctree := ..
210         else
211                 srctree := $(KBUILD_SRC)
212         endif
213 endif
214 objtree		:= .
215 src		:= $(srctree)
216 obj		:= $(objtree)
217 
218 VPATH		:= $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
219 
220 export srctree objtree VPATH
221 
222 # Make sure CDPATH settings don't interfere
223 unexport CDPATH
224 
225 #########################################################################
226 
227 HOSTARCH := $(shell uname -m | \
228 	sed -e s/i.86/x86/ \
229 	    -e s/sun4u/sparc64/ \
230 	    -e s/arm.*/arm/ \
231 	    -e s/sa110/arm/ \
232 	    -e s/ppc64/powerpc/ \
233 	    -e s/ppc/powerpc/ \
234 	    -e s/macppc/powerpc/\
235 	    -e s/sh.*/sh/)
236 
237 HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
238 	    sed -e 's/\(cygwin\).*/cygwin/')
239 
240 export	HOSTARCH HOSTOS
241 
242 #########################################################################
243 
244 # set default to nothing for native builds
245 ifeq ($(HOSTARCH),$(ARCH))
246 CROSS_COMPILE ?=
247 endif
248 
249 KCONFIG_CONFIG	?= .config
250 export KCONFIG_CONFIG
251 
252 # SHELL used by kbuild
253 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
254 	  else if [ -x /bin/bash ]; then echo /bin/bash; \
255 	  else echo sh; fi ; fi)
256 
257 HOSTCC       = cc
258 HOSTCXX      = c++
259 HOSTCFLAGS   = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
260 		$(if $(CONFIG_TOOLS_DEBUG),-g)
261 HOSTCXXFLAGS = -O2
262 
263 ifeq ($(HOSTOS),cygwin)
264 HOSTCFLAGS	+= -ansi
265 endif
266 
267 # Mac OS X / Darwin's C preprocessor is Apple specific.  It
268 # generates numerous errors and warnings.  We want to bypass it
269 # and use GNU C's cpp.	To do this we pass the -traditional-cpp
270 # option to the compiler.  Note that the -traditional-cpp flag
271 # DOES NOT have the same semantics as GNU C's flag, all it does
272 # is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
273 #
274 # Apple's linker is similar, thanks to the new 2 stage linking
275 # multiple symbol definitions are treated as errors, hence the
276 # -multiply_defined suppress option to turn off this error.
277 #
278 ifeq ($(HOSTOS),darwin)
279 # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
280 DARWIN_MAJOR_VERSION	= $(shell sw_vers -productVersion | cut -f 1 -d '.')
281 DARWIN_MINOR_VERSION	= $(shell sw_vers -productVersion | cut -f 2 -d '.')
282 
283 os_x_before	= $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
284 	$(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
285 
286 # Snow Leopards build environment has no longer restrictions as described above
287 HOSTCC       = $(call os_x_before, 10, 5, "cc", "gcc")
288 HOSTCFLAGS  += $(call os_x_before, 10, 4, "-traditional-cpp")
289 HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
290 
291 # since Lion (10.7) ASLR is on by default, but we use linker generated lists
292 # in some host tools which is a problem then ... so disable ASLR for these
293 # tools
294 HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie")
295 endif
296 
297 # Decide whether to build built-in, modular, or both.
298 # Normally, just do built-in.
299 
300 KBUILD_MODULES :=
301 KBUILD_BUILTIN := 1
302 
303 # If we have only "make modules", don't compile built-in objects.
304 # When we're building modules with modversions, we need to consider
305 # the built-in objects during the descend as well, in order to
306 # make sure the checksums are up to date before we record them.
307 
308 ifeq ($(MAKECMDGOALS),modules)
309   KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
310 endif
311 
312 # If we have "make <whatever> modules", compile modules
313 # in addition to whatever we do anyway.
314 # Just "make" or "make all" shall build modules as well
315 
316 # U-Boot does not need modules
317 #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
318 #  KBUILD_MODULES := 1
319 #endif
320 
321 #ifeq ($(MAKECMDGOALS),)
322 #  KBUILD_MODULES := 1
323 #endif
324 
325 export KBUILD_MODULES KBUILD_BUILTIN
326 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
327 
328 # We need some generic definitions (do not try to remake the file).
329 scripts/Kbuild.include: ;
330 include scripts/Kbuild.include
331 
332 # Make variables (CC, etc...)
333 
334 AS		= $(CROSS_COMPILE)as
335 # Always use GNU ld
336 ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
337 LD		= $(CROSS_COMPILE)ld.bfd
338 else
339 LD		= $(CROSS_COMPILE)ld
340 endif
341 CC		= $(CROSS_COMPILE)gcc
342 CPP		= $(CC) -E
343 AR		= $(CROSS_COMPILE)ar
344 NM		= $(CROSS_COMPILE)nm
345 LDR		= $(CROSS_COMPILE)ldr
346 STRIP		= $(CROSS_COMPILE)strip
347 OBJCOPY		= $(CROSS_COMPILE)objcopy
348 OBJDUMP		= $(CROSS_COMPILE)objdump
349 AWK		= awk
350 PERL		= perl
351 PYTHON		?= python
352 DTC		?= $(objtree)/scripts/dtc/dtc
353 CHECK		= sparse
354 
355 CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
356 		  -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
357 
358 KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
359 
360 KBUILD_CFLAGS   := -Wall -Wstrict-prototypes \
361 		   -Wno-format-security \
362 		   -fno-builtin -ffreestanding
363 KBUILD_CFLAGS	+= -fshort-wchar
364 KBUILD_AFLAGS   := -D__ASSEMBLY__
365 
366 # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
367 UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
368 UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
369 
370 export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
371 export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
372 export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
373 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
374 export MAKE AWK PERL PYTHON
375 export HOSTCXX HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
376 
377 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
378 export KBUILD_CFLAGS KBUILD_AFLAGS
379 
380 # When compiling out-of-tree modules, put MODVERDIR in the module
381 # tree rather than in the kernel tree. The kernel tree might
382 # even be read-only.
383 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
384 
385 # Files to ignore in find ... statements
386 
387 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o    \
388 			  -name CVS -o -name .pc -o -name .hg -o -name .git \) \
389 			  -prune -o
390 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
391 			 --exclude CVS --exclude .pc --exclude .hg --exclude .git
392 
393 # ===========================================================================
394 # Rules shared between *config targets and build targets
395 
396 # Basic helpers built in scripts/
397 PHONY += scripts_basic
398 scripts_basic:
399 	$(Q)$(MAKE) $(build)=scripts/basic
400 	$(Q)rm -f .tmp_quiet_recordmcount
401 
402 # To avoid any implicit rule to kick in, define an empty command.
403 scripts/basic/%: scripts_basic ;
404 
405 PHONY += outputmakefile
406 # outputmakefile generates a Makefile in the output directory, if using a
407 # separate output directory. This allows convenient use of make in the
408 # output directory.
409 outputmakefile:
410 ifneq ($(KBUILD_SRC),)
411 	$(Q)ln -fsn $(srctree) source
412 	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
413 	    $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
414 endif
415 
416 # To make sure we do not include .config for any of the *config targets
417 # catch them early, and hand them over to scripts/kconfig/Makefile
418 # It is allowed to specify more targets when calling make, including
419 # mixing *config targets and build targets.
420 # For example 'make oldconfig all'.
421 # Detect when mixed targets is specified, and make a second invocation
422 # of make so .config is not included in this case either (for *config).
423 
424 version_h := include/generated/version_autogenerated.h
425 timestamp_h := include/generated/timestamp_autogenerated.h
426 
427 no-dot-config-targets := clean clobber mrproper distclean \
428 			 help %docs check% coccicheck \
429 			 ubootversion backup tests
430 
431 config-targets := 0
432 mixed-targets  := 0
433 dot-config     := 1
434 
435 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
436 	ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
437 		dot-config := 0
438 	endif
439 endif
440 
441 ifeq ($(KBUILD_EXTMOD),)
442         ifneq ($(filter config %config,$(MAKECMDGOALS)),)
443                 config-targets := 1
444                 ifneq ($(words $(MAKECMDGOALS)),1)
445                         mixed-targets := 1
446                 endif
447         endif
448 endif
449 
450 ifeq ($(mixed-targets),1)
451 # ===========================================================================
452 # We're called with mixed targets (*config and build targets).
453 # Handle them one by one.
454 
455 PHONY += $(MAKECMDGOALS) __build_one_by_one
456 
457 $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
458 	@:
459 
460 __build_one_by_one:
461 	$(Q)set -e; \
462 	for i in $(MAKECMDGOALS); do \
463 		$(MAKE) -f $(srctree)/Makefile $$i; \
464 	done
465 
466 else
467 ifeq ($(config-targets),1)
468 # ===========================================================================
469 # *config targets only - make sure prerequisites are updated, and descend
470 # in scripts/kconfig to make the *config target
471 
472 KBUILD_DEFCONFIG := sandbox_defconfig
473 export KBUILD_DEFCONFIG KBUILD_KCONFIG
474 
475 config: scripts_basic outputmakefile FORCE
476 	$(Q)$(MAKE) $(build)=scripts/kconfig $@
477 
478 %config: scripts_basic outputmakefile FORCE
479 	$(Q)$(MAKE) $(build)=scripts/kconfig $@
480 
481 else
482 # ===========================================================================
483 # Build targets only - this includes vmlinux, arch specific targets, clean
484 # targets and others. In general all targets except *config targets.
485 
486 # Additional helpers built in scripts/
487 # Carefully list dependencies so we do not try to build scripts twice
488 # in parallel
489 PHONY += scripts
490 scripts: scripts_basic include/config/auto.conf
491 	$(Q)$(MAKE) $(build)=$(@)
492 
493 ifeq ($(dot-config),1)
494 # Read in config
495 -include include/config/auto.conf
496 
497 # Read in dependencies to all Kconfig* files, make sure to run
498 # oldconfig if changes are detected.
499 -include include/config/auto.conf.cmd
500 
501 # To avoid any implicit rule to kick in, define an empty command
502 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
503 
504 # If .config is newer than include/config/auto.conf, someone tinkered
505 # with it and forgot to run make oldconfig.
506 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
507 # we execute the config step to be sure to catch updated Kconfig files
508 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
509 	$(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
510 	@# If the following part fails, include/config/auto.conf should be
511 	@# deleted so "make silentoldconfig" will be re-run on the next build.
512 	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
513 		{ rm -f include/config/auto.conf; false; }
514 	@# include/config.h has been updated after "make silentoldconfig".
515 	@# We need to touch include/config/auto.conf so it gets newer
516 	@# than include/config.h.
517 	@# Otherwise, 'make silentoldconfig' would be invoked twice.
518 	$(Q)touch include/config/auto.conf
519 
520 u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg: include/config.h FORCE
521 	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@)
522 
523 -include include/autoconf.mk
524 -include include/autoconf.mk.dep
525 
526 # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
527 # is up-to-date. When we switch to a different board configuration, old CONFIG
528 # macros are still remaining in include/config/auto.conf. Without the following
529 # gimmick, wrong config.mk would be included leading nasty warnings/errors.
530 ifneq ($(wildcard $(KCONFIG_CONFIG)),)
531 ifneq ($(wildcard include/config/auto.conf),)
532 autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
533 						include/config/auto.conf)
534 ifeq ($(autoconf_is_old),)
535 include config.mk
536 include arch/$(ARCH)/Makefile
537 endif
538 endif
539 endif
540 
541 # These are set by the arch-specific config.mk. Make sure they are exported
542 # so they can be used when building an EFI application.
543 export EFI_LDS		# Filename of EFI link script in arch/$(ARCH)/lib
544 export EFI_CRT0		# Filename of EFI CRT0 in arch/$(ARCH)/lib
545 export EFI_RELOC	# Filename of EFU relocation code in arch/$(ARCH)/lib
546 export CFLAGS_EFI	# Compiler flags to add when building EFI app
547 export CFLAGS_NON_EFI	# Compiler flags to remove when building EFI app
548 export EFI_TARGET	# binutils target if EFI is natively supported
549 
550 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
551 # that (or fail if absent).  Otherwise, search for a linker script in a
552 # standard location.
553 
554 ifndef LDSCRIPT
555 	#LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
556 	ifdef CONFIG_SYS_LDSCRIPT
557 		# need to strip off double quotes
558 		LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
559 	endif
560 endif
561 
562 # If there is no specified link script, we look in a number of places for it
563 ifndef LDSCRIPT
564 	ifeq ($(wildcard $(LDSCRIPT)),)
565 		LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
566 	endif
567 	ifeq ($(wildcard $(LDSCRIPT)),)
568 		LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
569 	endif
570 	ifeq ($(wildcard $(LDSCRIPT)),)
571 		LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
572 	endif
573 endif
574 
575 else
576 # Dummy target needed, because used as prerequisite
577 include/config/auto.conf: ;
578 endif # $(dot-config)
579 
580 #
581 # Xtensa linker script cannot be preprocessed with -ansi because of
582 # preprocessor operations on strings that don't make C identifiers.
583 #
584 ifeq ($(CONFIG_XTENSA),)
585 LDPPFLAGS	+= -ansi
586 endif
587 
588 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
589 KBUILD_CFLAGS	+= -Os
590 else
591 KBUILD_CFLAGS	+= -O2
592 endif
593 
594 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
595 KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
596 
597 KBUILD_CFLAGS	+= -g
598 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
599 # option to the assembler.
600 KBUILD_AFLAGS	+= -g
601 
602 # Report stack usage if supported
603 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
604 	KBUILD_CFLAGS += -fstack-usage
605 endif
606 
607 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
608 
609 # turn jbsr into jsr for m68k
610 ifeq ($(ARCH),m68k)
611 ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
612 KBUILD_AFLAGS += -Wa,-gstabs,-S
613 endif
614 endif
615 
616 # Prohibit date/time macros, which would make the build non-deterministic
617 KBUILD_CFLAGS   += $(call cc-option,-Werror=date-time)
618 
619 include scripts/Makefile.extrawarn
620 
621 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
622 KBUILD_CPPFLAGS += $(KCPPFLAGS)
623 KBUILD_AFLAGS += $(KAFLAGS)
624 KBUILD_CFLAGS += $(KCFLAGS)
625 
626 # Use UBOOTINCLUDE when you must reference the include/ directory.
627 # Needed to be compatible with the O= option
628 UBOOTINCLUDE    := \
629 		-Iinclude \
630 		$(if $(KBUILD_SRC), -I$(srctree)/include) \
631 		$(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \
632 			$(if $(CONFIG_HAS_THUMB2),, \
633 				-I$(srctree)/arch/$(ARCH)/thumb1/include),) \
634 		-I$(srctree)/arch/$(ARCH)/include \
635 		-include $(srctree)/include/linux/kconfig.h
636 
637 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
638 CHECKFLAGS     += $(NOSTDINC_FLAGS)
639 
640 # FIX ME
641 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
642 							$(NOSTDINC_FLAGS)
643 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
644 
645 #########################################################################
646 # U-Boot objects....order is important (i.e. start must be first)
647 
648 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
649 
650 libs-y += lib/
651 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
652 libs-$(CONFIG_OF_EMBED) += dts/
653 libs-y += fs/
654 libs-y += net/
655 libs-y += disk/
656 libs-y += drivers/
657 libs-y += drivers/dma/
658 libs-y += drivers/gpio/
659 libs-y += drivers/i2c/
660 libs-y += drivers/mtd/
661 libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/
662 libs-y += drivers/mtd/onenand/
663 libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
664 libs-y += drivers/mtd/spi/
665 libs-y += drivers/net/
666 libs-y += drivers/net/phy/
667 libs-y += drivers/pci/
668 libs-y += drivers/power/ \
669 	drivers/power/domain/ \
670 	drivers/power/fuel_gauge/ \
671 	drivers/power/mfd/ \
672 	drivers/power/pmic/ \
673 	drivers/power/battery/ \
674 	drivers/power/regulator/
675 libs-y += drivers/spi/
676 libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
677 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
678 libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
679 libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/
680 libs-y += drivers/serial/
681 libs-y += drivers/usb/dwc3/
682 libs-y += drivers/usb/common/
683 libs-y += drivers/usb/emul/
684 libs-y += drivers/usb/eth/
685 libs-y += drivers/usb/gadget/
686 libs-y += drivers/usb/gadget/udc/
687 libs-y += drivers/usb/host/
688 libs-y += drivers/usb/musb/
689 libs-y += drivers/usb/musb-new/
690 libs-y += drivers/usb/phy/
691 libs-y += drivers/usb/ulpi/
692 libs-y += cmd/
693 libs-y += common/
694 libs-y += env/
695 libs-$(CONFIG_API) += api/
696 libs-$(CONFIG_HAS_POST) += post/
697 libs-y += test/
698 libs-y += test/dm/
699 libs-$(CONFIG_UT_ENV) += test/env/
700 libs-$(CONFIG_UT_OVERLAY) += test/overlay/
701 
702 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
703 
704 libs-y := $(sort $(libs-y))
705 
706 u-boot-dirs	:= $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
707 
708 u-boot-alldirs	:= $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
709 
710 libs-y		:= $(patsubst %/, %/built-in.o, $(libs-y))
711 
712 u-boot-init := $(head-y)
713 u-boot-main := $(libs-y)
714 
715 
716 # Add GCC lib
717 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
718 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
719 else
720 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
721 endif
722 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
723 export PLATFORM_LIBS
724 export PLATFORM_LIBGCC
725 
726 # Special flags for CPP when processing the linker script.
727 # Pass the version down so we can handle backwards compatibility
728 # on the fly.
729 LDPPFLAGS += \
730 	-include $(srctree)/include/u-boot/u-boot.lds.h \
731 	-DCPUDIR=$(CPUDIR) \
732 	$(shell $(LD) --version | \
733 	  sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
734 
735 #########################################################################
736 #########################################################################
737 
738 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
739 BOARD_SIZE_CHECK = \
740 	@actual=`wc -c $@ | awk '{print $$1}'`; \
741 	limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
742 	if test $$actual -gt $$limit; then \
743 		echo "$@ exceeds file size limit:" >&2 ; \
744 		echo "  limit:  $$limit bytes" >&2 ; \
745 		echo "  actual: $$actual bytes" >&2 ; \
746 		echo "  excess: $$((actual - limit)) bytes" >&2; \
747 		exit 1; \
748 	fi
749 else
750 BOARD_SIZE_CHECK =
751 endif
752 
753 # Statically apply RELA-style relocations (currently arm64 only)
754 # This is useful for arm64 where static relocation needs to be performed on
755 # the raw binary, but certain simulators only accept an ELF file (but don't
756 # do the relocation).
757 ifneq ($(CONFIG_STATIC_RELA),)
758 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
759 DO_STATIC_RELA = \
760 	start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
761 	end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
762 	tools/relocate-rela $(2) $(3) $$start $$end
763 else
764 DO_STATIC_RELA =
765 endif
766 
767 # Always append ALL so that arch config.mk's can add custom ones
768 ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
769 
770 ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
771 ifeq ($(CONFIG_SPL_FSL_PBL),y)
772 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
773 else
774 ifneq ($(CONFIG_SECURE_BOOT), y)
775 # For Secure Boot The Image needs to be signed and Header must also
776 # be included. So The image has to be built explicitly
777 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
778 endif
779 endif
780 ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
781 ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy)
782 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
783 else
784 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
785 endif
786 ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
787 ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
788 ifeq ($(CONFIG_SPL_FRAMEWORK),y)
789 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
790 endif
791 ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
792 ifneq ($(CONFIG_SPL_TARGET),)
793 ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
794 endif
795 ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
796 ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
797 ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
798 
799 ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),)
800 ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
801 endif
802 
803 # enable combined SPL/u-boot/dtb rules for tegra
804 ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy)
805 ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
806 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin
807 endif
808 
809 # Add optional build target if defined in board/cpu/soc headers
810 ifneq ($(CONFIG_BUILD_TARGET),)
811 ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
812 endif
813 
814 ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
815 ALL-y += init_sp_bss_offset_check
816 endif
817 
818 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
819 
820 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
821 LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
822 
823 ifneq ($(CONFIG_SYS_TEXT_BASE),)
824 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
825 endif
826 
827 # Normally we fill empty space with 0xff
828 quiet_cmd_objcopy = OBJCOPY $@
829 cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
830 	$(OBJCOPYFLAGS_$(@F)) $< $@
831 
832 # Provide a version which does not do this, for use by EFI
833 quiet_cmd_zobjcopy = OBJCOPY $@
834 cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
835 
836 quiet_cmd_efipayload = OBJCOPY $@
837 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
838 
839 MKIMAGEOUTPUT ?= /dev/null
840 
841 quiet_cmd_mkimage = MKIMAGE $@
842 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
843 	$(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT))
844 
845 quiet_cmd_mkfitimage = MKIMAGE $@
846 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -E $@ \
847 	$(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT))
848 
849 quiet_cmd_cat = CAT     $@
850 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
851 
852 append = cat $(filter-out $< $(PHONY), $^) >> $@
853 
854 quiet_cmd_pad_cat = CAT     $@
855 cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
856 
857 cfg: u-boot.cfg
858 
859 quiet_cmd_cfgcheck = CFGCHK  $2
860 cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
861 		$(srctree)/scripts/config_whitelist.txt $(srctree)
862 
863 all:		$(ALL-y) cfg
864 ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y)
865 	@echo "===================== WARNING ======================"
866 	@echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
867 	@echo "(possibly in a subsequent patch in your series)"
868 	@echo "before sending patches to the mailing list."
869 	@echo "===================================================="
870 endif
871 	@# Check that this build does not use CONFIG options that we do not
872 	@# know about unless they are in Kconfig. All the existing CONFIG
873 	@# options are whitelisted, so new ones should not be added.
874 	$(call cmd,cfgcheck,u-boot.cfg)
875 
876 PHONY += dtbs
877 dtbs: dts/dt.dtb
878 	@:
879 dts/dt.dtb: u-boot
880 	$(Q)$(MAKE) $(build)=dts dtbs
881 
882 quiet_cmd_copy = COPY    $@
883       cmd_copy = cp $< $@
884 
885 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
886 
887 fit-dtb.blob: dts/dt.dtb FORCE
888 	$(call if_changed,mkimage)
889 
890 MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
891 	-a 0 -e 0 -E \
892 	$(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
893 
894 u-boot-fit-dtb.bin: u-boot-nodtb.bin fit-dtb.blob
895 	$(call if_changed,cat)
896 
897 u-boot.bin: u-boot-fit-dtb.bin FORCE
898 	$(call if_changed,copy)
899 else ifeq ($(CONFIG_OF_SEPARATE),y)
900 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
901 	$(call if_changed,cat)
902 
903 u-boot.bin: u-boot-dtb.bin FORCE
904 	$(call if_changed,copy)
905 else
906 u-boot.bin: u-boot-nodtb.bin FORCE
907 	$(call if_changed,copy)
908 endif
909 
910 %.imx: %.bin
911 	$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
912 
913 %.vyb: %.imx
914 	$(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
915 
916 quiet_cmd_copy = COPY    $@
917       cmd_copy = cp $< $@
918 
919 u-boot.dtb: dts/dt.dtb
920 	$(call cmd,copy)
921 
922 OBJCOPYFLAGS_u-boot.hex := -O ihex
923 
924 OBJCOPYFLAGS_u-boot.srec := -O srec
925 
926 u-boot.hex u-boot.srec: u-boot FORCE
927 	$(call if_changed,objcopy)
928 
929 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
930 		$(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec)
931 
932 binary_size_check: u-boot-nodtb.bin FORCE
933 	@file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
934 	map_size=$(shell cat u-boot.map | \
935 		awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
936 		| sed 's/0X//g' \
937 		| bc); \
938 	if [ "" != "$$map_size" ]; then \
939 		if test $$map_size -ne $$file_size; then \
940 			echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
941 			echo "  but u-boot-nodtb.bin shows $$file_size" >&2 ; \
942 			exit 1; \
943 		fi \
944 	fi
945 
946 ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
947 ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
948 subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
949 else
950 subtract_sys_malloc_f_len = true
951 endif
952 # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
953 # so low that the DTB could probably use 90%+ of the available space, for
954 # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
955 # safe for now and tweak this later if space becomes tight.
956 # A rejected alternative would be to check that some absolute minimum stack
957 # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
958 # deliberately build-specific, to take account of build-to-build stack usage
959 # differences due to different feature sets, there is no common absolute value
960 # to check against.
961 init_sp_bss_offset_check: u-boot.dtb FORCE
962 	@dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
963 	space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
964 	$(subtract_sys_malloc_f_len) ; \
965 	quarter_space=$$(($${space} / 4)) ; \
966 	if [ $${dtb_size} -gt $${quarter_space} ]; then \
967 		echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
968 		echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
969 		exit 1 ; \
970 	fi
971 endif
972 
973 u-boot-nodtb.bin: u-boot FORCE
974 	$(call if_changed,objcopy)
975 	$(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
976 	$(BOARD_SIZE_CHECK)
977 
978 u-boot.ldr:	u-boot
979 		$(CREATE_LDR_ENV)
980 		$(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
981 		$(BOARD_SIZE_CHECK)
982 
983 # binman
984 # ---------------------------------------------------------------------------
985 quiet_cmd_binman = BINMAN  $@
986 cmd_binman = $(srctree)/tools/binman/binman -d u-boot.dtb -O . \
987 		-I . -I $(srctree)/board/$(BOARDDIR) $<
988 
989 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
990 
991 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
992 
993 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
994 	$(call if_changed,objcopy)
995 
996 #
997 # U-Boot entry point, needed for booting of full-blown U-Boot
998 # from the SPL U-Boot version.
999 #
1000 ifndef CONFIG_SYS_UBOOT_START
1001 CONFIG_SYS_UBOOT_START := 0
1002 endif
1003 
1004 # Create a file containing the configuration options the image was built with
1005 quiet_cmd_cpp_cfg = CFG     $@
1006 cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
1007 	-DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
1008 
1009 # Boards with more complex image requirments can provide an .its source file
1010 # or a generator script
1011 ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
1012 U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
1013 else
1014 ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
1015 U_BOOT_ITS := u-boot.its
1016 $(U_BOOT_ITS): FORCE
1017 	$(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
1018 	$(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
1019 endif
1020 endif
1021 
1022 ifdef CONFIG_SPL_LOAD_FIT
1023 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1024 	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1025 	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1026 	$(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
1027 else
1028 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1029 	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1030 	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1031 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1032 	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1033 	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1034 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1035 CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
1036 endif
1037 
1038 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1039 
1040 MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1041 	-T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
1042 
1043 MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1044 	-T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1045 	$(if $(KEYDIR),-k $(KEYDIR))
1046 
1047 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1048 		-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1049 
1050 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1051 		$(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
1052 	$(call if_changed,mkimage)
1053 
1054 u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE
1055 	$(call if_changed,mkfitimage)
1056 	$(BOARD_SIZE_CHECK)
1057 
1058 u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
1059 	$(call if_changed,mkimage)
1060 
1061 u-boot.sha1:	u-boot.bin
1062 		tools/ubsha1 u-boot.bin
1063 
1064 u-boot.dis:	u-boot
1065 		$(OBJDUMP) -d $< > $@
1066 
1067 ifdef CONFIG_TPL
1068 SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
1069 else
1070 SPL_PAYLOAD := u-boot.bin
1071 endif
1072 
1073 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1074 				   --pad-to=$(CONFIG_SPL_PAD_TO)
1075 u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
1076 	$(call if_changed,pad_cat)
1077 
1078 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1079 
1080 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1081 	$(call if_changed,mkimage)
1082 
1083 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1084 
1085 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1086 	$(call if_changed,objcopy)
1087 
1088 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1089 
1090 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1091 	$(call if_changed,objcopy)
1092 
1093 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1094 	$(call if_changed,cat)
1095 
1096 CLEAN_FILES += lpc32xx-*
1097 
1098 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1099 				   --pad-to=$(CONFIG_TPL_PAD_TO)
1100 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1101 	$(call if_changed,pad_cat)
1102 
1103 SPL: spl/u-boot-spl.bin FORCE
1104 	$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1105 
1106 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
1107 	$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1108 
1109 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1110 
1111 u-boot.ubl: u-boot-with-spl.bin FORCE
1112 	$(call if_changed,mkimage)
1113 
1114 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1115 	$(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1116 	-T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1117 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1118 	$(call if_changed,mkimage)
1119 
1120 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1121 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1122 	$(call if_changed,pad_cat)
1123 
1124 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1125 	$(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1126 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1127 	$(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1128 
1129 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1130 # Both images are created using mkimage (crc etc), so that the ROM
1131 # bootloader can check its integrity. Padding needs to be done to the
1132 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1133 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1134 # The resulting image containing both U-Boot images is called u-boot.spr
1135 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1136 	-a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1137 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1138 	$(call if_changed,mkimage)
1139 
1140 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1141 			  --gap-fill=0xff
1142 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1143 	$(call if_changed,pad_cat)
1144 
1145 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1146 quiet_cmd_socboot = SOCBOOT $@
1147 cmd_socboot = cat	spl/u-boot-spl.sfp spl/u-boot-spl.sfp	\
1148 			spl/u-boot-spl.sfp spl/u-boot-spl.sfp	\
1149 			u-boot.img > $@ || rm -f $@
1150 u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1151 	$(call if_changed,socboot)
1152 endif
1153 
1154 # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1155 # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1156 # the middle. This is handled by binman based on an image description in the
1157 # board's device tree.
1158 ifneq ($(CONFIG_X86_RESET_VECTOR),)
1159 rom: u-boot.rom FORCE
1160 
1161 refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1162 	$(call if_changed,copy)
1163 
1164 quiet_cmd_ldr = LD      $@
1165 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1166 	       $(filter-out FORCE,$^) -o $@
1167 
1168 u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \
1169 		$(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1170 		$(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
1171 	$(call if_changed,binman)
1172 
1173 OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
1174 u-boot-x86-16bit.bin: u-boot FORCE
1175 	$(call if_changed,objcopy)
1176 endif
1177 
1178 ifneq ($(CONFIG_ARCH_SUNXI),)
1179 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
1180 	$(call if_changed,binman)
1181 endif
1182 
1183 ifneq ($(CONFIG_TEGRA),)
1184 ifneq ($(CONFIG_BINMAN),)
1185 u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin: \
1186 		spl/u-boot-spl u-boot.bin FORCE
1187 	$(call if_changed,binman)
1188 else
1189 OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1190 u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1191 	$(call if_changed,pad_cat)
1192 
1193 OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1194 u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1195 	$(call if_changed,pad_cat)
1196 
1197 u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1198 	$(call if_changed,copy)
1199 endif  # binman
1200 endif
1201 
1202 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1203 u-boot-app.efi: u-boot FORCE
1204 	$(call if_changed,zobjcopy)
1205 
1206 u-boot.bin.o: u-boot.bin FORCE
1207 	$(call if_changed,efipayload)
1208 
1209 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1210 	$(call if_changed_dep,cpp_lds)
1211 
1212 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1213 quiet_cmd_u-boot_payload ?= LD      $@
1214       cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1215       -T u-boot-payload.lds arch/x86/cpu/call32.o \
1216       lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1217       $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1218 
1219 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1220 	$(call if_changed,u-boot_payload)
1221 
1222 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1223 u-boot-payload.efi: u-boot-payload FORCE
1224 	$(call if_changed,zobjcopy)
1225 
1226 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1227 	$(call if_changed,cat)
1228 
1229 #Add a target to create boot binary having SPL binary in PBI format
1230 #concatenated with u-boot binary. It is need by PowerPC SoC having
1231 #internal SRAM <= 512KB.
1232 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1233 		-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1234 		-A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1235 
1236 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1237 	$(call if_changed,mkimage)
1238 
1239 ifeq ($(ARCH),arm)
1240 UBOOT_BINLOAD := u-boot.img
1241 else
1242 UBOOT_BINLOAD := u-boot.bin
1243 endif
1244 
1245 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1246 			  --gap-fill=0xff
1247 
1248 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1249 	$(call if_changed,pad_cat)
1250 
1251 # PPC4xx needs the SPL at the end of the image, since the reset vector
1252 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1253 # and need to introduce a new build target with the full blown U-Boot
1254 # at the start padded up to the start of the SPL image. And then concat
1255 # the SPL image to the end.
1256 
1257 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1258 	--pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1259 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1260 	$(call if_changed,pad_cat)
1261 
1262 # Create a new ELF from a raw binary file.
1263 ifndef PLATFORM_ELFENTRY
1264   PLATFORM_ELFENTRY = "_start"
1265 endif
1266 quiet_cmd_u-boot-elf ?= LD      $@
1267 	cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1268 	--defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1269 	-Ttext=$(CONFIG_SYS_TEXT_BASE)
1270 u-boot.elf: u-boot.bin
1271 	$(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1272 	$(call if_changed,u-boot-elf)
1273 
1274 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1275 
1276 # Rule to link u-boot
1277 # May be overridden by arch/$(ARCH)/config.mk
1278 quiet_cmd_u-boot__ ?= LD      $@
1279       cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1280       -T u-boot.lds $(u-boot-init)                             \
1281       --start-group $(u-boot-main) --end-group                 \
1282       $(PLATFORM_LIBS) -Map u-boot.map;                        \
1283       $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1284 
1285 quiet_cmd_smap = GEN     common/system_map.o
1286 cmd_smap = \
1287 	smap=`$(call SYSTEM_MAP,u-boot) | \
1288 		awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1289 	$(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1290 		-c $(srctree)/common/system_map.c -o common/system_map.o
1291 
1292 u-boot:	$(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1293 	+$(call if_changed,u-boot__)
1294 ifeq ($(CONFIG_KALLSYMS),y)
1295 	$(call cmd,smap)
1296 	$(call cmd,u-boot__) common/system_map.o
1297 endif
1298 
1299 ifeq ($(CONFIG_RISCV),y)
1300 	@tools/prelink-riscv $@ 0
1301 endif
1302 
1303 quiet_cmd_sym ?= SYM     $@
1304       cmd_sym ?= $(OBJDUMP) -t $< > $@
1305 u-boot.sym: u-boot FORCE
1306 	$(call if_changed,sym)
1307 
1308 # The actual objects are generated when descending,
1309 # make sure no implicit rule kicks in
1310 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1311 
1312 # Handle descending into subdirectories listed in $(vmlinux-dirs)
1313 # Preset locale variables to speed up the build process. Limit locale
1314 # tweaks to this spot to avoid wrong language settings when running
1315 # make menuconfig etc.
1316 # Error messages still appears in the original language
1317 
1318 PHONY += $(u-boot-dirs)
1319 $(u-boot-dirs): prepare scripts
1320 	$(Q)$(MAKE) $(build)=$@
1321 
1322 tools: prepare
1323 # The "tools" are needed early
1324 $(filter-out tools, $(u-boot-dirs)): tools
1325 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1326 # is "yes"), so compile examples after U-Boot is compiled.
1327 examples: $(filter-out examples, $(u-boot-dirs))
1328 
1329 define filechk_uboot.release
1330 	echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1331 endef
1332 
1333 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1334 include/config/uboot.release: include/config/auto.conf FORCE
1335 	$(call filechk,uboot.release)
1336 
1337 
1338 # Things we need to do before we recursively start building the kernel
1339 # or the modules are listed in "prepare".
1340 # A multi level approach is used. prepareN is processed before prepareN-1.
1341 # archprepare is used in arch Makefiles and when processed asm symlink,
1342 # version.h and scripts_basic is processed / created.
1343 
1344 # Listed in dependency order
1345 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1346 
1347 # prepare3 is used to check if we are building in a separate output directory,
1348 # and if so do:
1349 # 1) Check that make has not been executed in the kernel src $(srctree)
1350 prepare3: include/config/uboot.release
1351 ifneq ($(KBUILD_SRC),)
1352 	@$(kecho) '  Using $(srctree) as source for U-Boot'
1353 	$(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1354 		echo >&2 "  $(srctree) is not clean, please run 'make mrproper'"; \
1355 		echo >&2 "  in the '$(srctree)' directory.";\
1356 		/bin/false; \
1357 	fi;
1358 endif
1359 
1360 # prepare2 creates a makefile if using a separate output directory
1361 prepare2: prepare3 outputmakefile
1362 
1363 prepare1: prepare2 $(version_h) $(timestamp_h) \
1364                    include/config/auto.conf
1365 ifeq ($(wildcard $(LDSCRIPT)),)
1366 	@echo >&2 "  Could not find linker script."
1367 	@/bin/false
1368 endif
1369 
1370 archprepare: prepare1 scripts_basic
1371 
1372 prepare0: archprepare FORCE
1373 	$(Q)$(MAKE) $(build)=.
1374 
1375 # All the preparing..
1376 prepare: prepare0
1377 
1378 # Generate some files
1379 # ---------------------------------------------------------------------------
1380 
1381 define filechk_version.h
1382 	(echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1383 	echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1384 	echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1385 	echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1386 endef
1387 
1388 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1389 # The BSD date on the other hand behaves different and would produce errors
1390 # with the misused '-d' switch.  Respect that and search a working date with
1391 # well known pre- and suffixes for the GNU variant of date.
1392 define filechk_timestamp.h
1393 	(if test -n "$${SOURCE_DATE_EPOCH}"; then \
1394 		SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1395 		DATE=""; \
1396 		for date in gdate date.gnu date; do \
1397 			$${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1398 		done; \
1399 		if test -n "$${DATE}"; then \
1400 			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1401 			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1402 			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1403 			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1404 			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1405 		else \
1406 			return 42; \
1407 		fi; \
1408 	else \
1409 		LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1410 		LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1411 		LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1412 		LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1413 		LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1414 	fi)
1415 endef
1416 
1417 $(version_h): include/config/uboot.release FORCE
1418 	$(call filechk,version.h)
1419 
1420 $(timestamp_h): $(srctree)/Makefile FORCE
1421 	$(call filechk,timestamp.h)
1422 
1423 # ---------------------------------------------------------------------------
1424 quiet_cmd_cpp_lds = LDS     $@
1425 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1426 		-D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
1427 
1428 u-boot.lds: $(LDSCRIPT) prepare FORCE
1429 	$(call if_changed_dep,cpp_lds)
1430 
1431 spl/u-boot-spl.bin: spl/u-boot-spl
1432 	@:
1433 spl/u-boot-spl: tools prepare \
1434 		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
1435 		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
1436 	$(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1437 
1438 spl/sunxi-spl.bin: spl/u-boot-spl
1439 	@:
1440 
1441 spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1442 	@:
1443 
1444 spl/u-boot-spl.sfp: spl/u-boot-spl
1445 	@:
1446 
1447 spl/boot.bin: spl/u-boot-spl
1448 	@:
1449 
1450 tpl/u-boot-tpl.bin: tools prepare \
1451 		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1452 	$(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1453 
1454 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1455 
1456 FIND := find
1457 FINDFLAGS := -L
1458 
1459 tags ctags:
1460 		ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1461 						-name '*.[chS]' -print`
1462 		ln -s ctags tags
1463 
1464 etags:
1465 		etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1466 						-name '*.[chS]' -print`
1467 cscope:
1468 		$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1469 						cscope.files
1470 		cscope -b -q -k
1471 
1472 SYSTEM_MAP = \
1473 		$(NM) $1 | \
1474 		grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1475 		LC_ALL=C sort
1476 System.map:	u-boot
1477 		@$(call SYSTEM_MAP,$<) > $@
1478 
1479 #########################################################################
1480 
1481 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1482 # R_AARCH64_RELATIVE (64-bit).
1483 checkarmreloc: u-boot
1484 	@RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1485 		grep R_A | sort -u`"; \
1486 	if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1487 		 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1488 		echo "$< contains unexpected relocations: $$RELOC"; \
1489 		false; \
1490 	fi
1491 
1492 envtools: scripts_basic $(version_h) $(timestamp_h)
1493 	$(Q)$(MAKE) $(build)=tools/env
1494 
1495 tools-only: scripts_basic $(version_h) $(timestamp_h)
1496 	$(Q)$(MAKE) $(build)=tools
1497 
1498 tools-all: export HOST_TOOLS_ALL=y
1499 tools-all: envtools tools ;
1500 
1501 cross_tools: export CROSS_BUILD_TOOLS=y
1502 cross_tools: tools ;
1503 
1504 .PHONY : CHANGELOG
1505 CHANGELOG:
1506 	git log --no-merges U-Boot-1_1_5.. | \
1507 	unexpand -a | sed -e 's/\s\s*$$//' > $@
1508 
1509 #########################################################################
1510 
1511 ###
1512 # Cleaning is done on three levels.
1513 # make clean     Delete most generated files
1514 #                Leave enough to build external modules
1515 # make mrproper  Delete the current configuration, and all generated files
1516 # make distclean Remove editor backup files, patch leftover files and the like
1517 
1518 # Directories & files removed with 'make clean'
1519 CLEAN_DIRS  += $(MODVERDIR) \
1520 	       $(foreach d, spl tpl, $(patsubst %,$d/%, \
1521 			$(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1522 
1523 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
1524 	       boot* u-boot* MLO* SPL System.map fit-dtb.blob
1525 
1526 # Directories & files removed with 'make mrproper'
1527 MRPROPER_DIRS  += include/config include/generated spl tpl \
1528 		  .tmp_objdiff
1529 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1530 		  ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
1531 
1532 # clean - Delete most, but leave enough to build external modules
1533 #
1534 clean: rm-dirs  := $(CLEAN_DIRS)
1535 clean: rm-files := $(CLEAN_FILES)
1536 
1537 clean-dirs	:= $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1538 
1539 clean-dirs      := $(addprefix _clean_, $(clean-dirs) doc/DocBook)
1540 
1541 PHONY += $(clean-dirs) clean archclean
1542 $(clean-dirs):
1543 	$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1544 
1545 # TODO: Do not use *.cfgtmp
1546 clean: $(clean-dirs)
1547 	$(call cmd,rmdirs)
1548 	$(call cmd,rmfiles)
1549 	@find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1550 		\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1551 		-o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \
1552 		-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1553 		-o -name '*.symtypes' -o -name 'modules.order' \
1554 		-o -name modules.builtin -o -name '.tmp_*.o.*' \
1555 		-o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
1556 		-o -name '*.gcno' \) -type f -print | xargs rm -f
1557 
1558 # mrproper - Delete all generated files, including .config
1559 #
1560 mrproper: rm-dirs  := $(wildcard $(MRPROPER_DIRS))
1561 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1562 mrproper-dirs      := $(addprefix _mrproper_,scripts)
1563 
1564 PHONY += $(mrproper-dirs) mrproper archmrproper
1565 $(mrproper-dirs):
1566 	$(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1567 
1568 mrproper: clean $(mrproper-dirs)
1569 	$(call cmd,rmdirs)
1570 	$(call cmd,rmfiles)
1571 	@rm -f arch/*/include/asm/arch
1572 
1573 # distclean
1574 #
1575 PHONY += distclean
1576 
1577 distclean: mrproper
1578 	@find $(srctree) $(RCS_FIND_IGNORE) \
1579 		\( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1580 		-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1581 		-o -name '.*.rej' -o -name '*%' -o -name 'core' \
1582 		-o -name '*.pyc' \) \
1583 		-type f -print | xargs rm -f
1584 	@rm -f boards.cfg
1585 
1586 backup:
1587 	F=`basename $(srctree)` ; cd .. ; \
1588 	gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1589 
1590 help:
1591 	@echo  'Cleaning targets:'
1592 	@echo  '  clean		  - Remove most generated files but keep the config'
1593 	@echo  '  mrproper	  - Remove all generated files + config + various backup files'
1594 	@echo  '  distclean	  - mrproper + remove editor backup and patch files'
1595 	@echo  ''
1596 	@echo  'Configuration targets:'
1597 	@$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1598 	@echo  ''
1599 	@echo  'Other generic targets:'
1600 	@echo  '  all		  - Build all necessary images depending on configuration'
1601 	@echo  '  tests		  - Build U-Boot for sandbox and run tests'
1602 	@echo  '* u-boot	  - Build the bare u-boot'
1603 	@echo  '  dir/            - Build all files in dir and below'
1604 	@echo  '  dir/file.[oisS] - Build specified target only'
1605 	@echo  '  dir/file.lst    - Build specified mixed source/assembly target only'
1606 	@echo  '                    (requires a recent binutils and recent build (System.map))'
1607 	@echo  '  tags/ctags	  - Generate ctags file for editors'
1608 	@echo  '  etags		  - Generate etags file for editors'
1609 	@echo  '  cscope	  - Generate cscope index'
1610 	@echo  '  ubootrelease	  - Output the release version string (use with make -s)'
1611 	@echo  '  ubootversion	  - Output the version stored in Makefile (use with make -s)'
1612 	@echo  "  cfg		  - Don't build, just create the .cfg files"
1613 	@echo  "  envtools	  - Build only the target-side environment tools"
1614 	@echo  ''
1615 	@echo  'Static analysers'
1616 	@echo  '  checkstack      - Generate a list of stack hogs'
1617 	@echo  '  coccicheck      - Execute static code analysis with Coccinelle'
1618 	@echo  ''
1619 	@echo  'Documentation targets:'
1620 	@$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp
1621 	@echo  ''
1622 	@echo  '  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1623 	@echo  '  make V=2   [targets] 2 => give reason for rebuild of target'
1624 	@echo  '  make O=dir [targets] Locate all output files in "dir", including .config'
1625 	@echo  '  make C=1   [targets] Check all c source with $$CHECK (sparse by default)'
1626 	@echo  '  make C=2   [targets] Force check of all c source with $$CHECK'
1627 	@echo  '  make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1628 	@echo  '  make W=n   [targets] Enable extra gcc checks, n=1,2,3 where'
1629 	@echo  '		1: warnings which may be relevant and do not occur too often'
1630 	@echo  '		2: warnings which occur quite often but may still be relevant'
1631 	@echo  '		3: more obscure warnings, can most likely be ignored'
1632 	@echo  '		Multiple levels can be combined with W=12 or W=123'
1633 	@echo  ''
1634 	@echo  'Execute "make" or "make all" to build all targets marked with [*] '
1635 	@echo  'For further info see the ./README file'
1636 
1637 tests:
1638 	$(srctree)/test/run
1639 
1640 # Documentation targets
1641 # ---------------------------------------------------------------------------
1642 %docs: scripts_basic FORCE
1643 	$(Q)$(MAKE) $(build)=scripts build_docproc
1644 	$(Q)$(MAKE) $(build)=doc/DocBook $@
1645 
1646 endif #ifeq ($(config-targets),1)
1647 endif #ifeq ($(mixed-targets),1)
1648 
1649 PHONY += checkstack ubootrelease ubootversion
1650 
1651 checkstack:
1652 	$(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1653 	$(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1654 
1655 ubootrelease:
1656 	@echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1657 
1658 ubootversion:
1659 	@echo $(UBOOTVERSION)
1660 
1661 # Single targets
1662 # ---------------------------------------------------------------------------
1663 # Single targets are compatible with:
1664 # - build with mixed source and output
1665 # - build with separate output dir 'make O=...'
1666 # - external modules
1667 #
1668 #  target-dir => where to store outputfile
1669 #  build-dir  => directory in kernel source tree to use
1670 
1671 ifeq ($(KBUILD_EXTMOD),)
1672         build-dir  = $(patsubst %/,%,$(dir $@))
1673         target-dir = $(dir $@)
1674 else
1675         zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1676         build-dir  = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1677         target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1678 endif
1679 
1680 %.s: %.c prepare scripts FORCE
1681 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1682 %.i: %.c prepare scripts FORCE
1683 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1684 %.o: %.c prepare scripts FORCE
1685 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1686 %.lst: %.c prepare scripts FORCE
1687 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1688 %.s: %.S prepare scripts FORCE
1689 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1690 %.o: %.S prepare scripts FORCE
1691 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1692 %.symtypes: %.c prepare scripts FORCE
1693 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1694 
1695 # Modules
1696 /: prepare scripts FORCE
1697 	$(cmd_crmodverdir)
1698 	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1699 	$(build)=$(build-dir)
1700 %/: prepare scripts FORCE
1701 	$(cmd_crmodverdir)
1702 	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1703 	$(build)=$(build-dir)
1704 %.ko: prepare scripts FORCE
1705 	$(cmd_crmodverdir)
1706 	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1)   \
1707 	$(build)=$(build-dir) $(@:.ko=.o)
1708 	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1709 
1710 # Consistency checks
1711 # ---------------------------------------------------------------------------
1712 
1713 PHONY += coccicheck
1714 
1715 coccicheck:
1716 	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
1717 
1718 # FIXME Should go into a make.lib or something
1719 # ===========================================================================
1720 
1721 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN   $(wildcard $(rm-dirs)))
1722       cmd_rmdirs = rm -rf $(rm-dirs)
1723 
1724 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(rm-files)))
1725       cmd_rmfiles = rm -f $(rm-files)
1726 
1727 # read all saved command lines
1728 
1729 targets := $(wildcard $(sort $(targets)))
1730 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1731 
1732 ifneq ($(cmd_files),)
1733   $(cmd_files): ;	# Do not try to update included dependency files
1734   include $(cmd_files)
1735 endif
1736 
1737 endif	# skip-makefile
1738 
1739 PHONY += FORCE
1740 FORCE:
1741 
1742 # Declare the contents of the .PHONY variable as phony.  We keep that
1743 # information in a variable so we can use it in if_changed and friends.
1744 .PHONY: $(PHONY)
1745