xref: /openbmc/u-boot/Makefile (revision ccd063e9812a2bdcbeafbbcd8dcb062bfc290f24)
1 # SPDX-License-Identifier: GPL-2.0+
2 
3 VERSION = 2019
4 PATCHLEVEL = 04
5 SUBLEVEL =
6 EXTRAVERSION = -rc4
7 NAME =
8 
9 # *DOCUMENTATION*
10 # To see a list of typical targets execute "make help"
11 # More info can be located in ./README
12 # Comments in this file are targeted only to the developer, do not
13 # expect to learn how to build the kernel reading this file.
14 
15 # o Do not use make's built-in rules and variables
16 #   (this increases performance and avoids hard-to-debug behaviour);
17 # o Look for make include files relative to root of kernel src
18 MAKEFLAGS += -rR --include-dir=$(CURDIR)
19 
20 # Avoid funny character set dependencies
21 unexport LC_ALL
22 LC_COLLATE=C
23 LC_NUMERIC=C
24 export LC_COLLATE LC_NUMERIC
25 
26 # Avoid interference with shell env settings
27 unexport GREP_OPTIONS
28 
29 # We are using a recursive build, so we need to do a little thinking
30 # to get the ordering right.
31 #
32 # Most importantly: sub-Makefiles should only ever modify files in
33 # their own directory. If in some directory we have a dependency on
34 # a file in another dir (which doesn't happen often, but it's often
35 # unavoidable when linking the built-in.o targets which finally
36 # turn into vmlinux), we will call a sub make in that other dir, and
37 # after that we are sure that everything which is in that other dir
38 # is now up to date.
39 #
40 # The only cases where we need to modify files which have global
41 # effects are thus separated out and done before the recursive
42 # descending is started. They are now explicitly listed as the
43 # prepare rule.
44 
45 # Beautify output
46 # ---------------------------------------------------------------------------
47 #
48 # Normally, we echo the whole command before executing it. By making
49 # that echo $($(quiet)$(cmd)), we now have the possibility to set
50 # $(quiet) to choose other forms of output instead, e.g.
51 #
52 #         quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
53 #         cmd_cc_o_c       = $(CC) $(c_flags) -c -o $@ $<
54 #
55 # If $(quiet) is empty, the whole command will be printed.
56 # If it is set to "quiet_", only the short version will be printed.
57 # If it is set to "silent_", nothing will be printed at all, since
58 # the variable $(silent_cmd_cc_o_c) doesn't exist.
59 #
60 # A simple variant is to prefix commands with $(Q) - that's useful
61 # for commands that shall be hidden in non-verbose mode.
62 #
63 #	$(Q)ln $@ :<
64 #
65 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
66 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
67 #
68 # To put more focus on warnings, be less verbose as default
69 # Use 'make V=1' to see the full commands
70 
71 ifeq ("$(origin V)", "command line")
72   KBUILD_VERBOSE = $(V)
73 endif
74 ifndef KBUILD_VERBOSE
75   KBUILD_VERBOSE = 0
76 endif
77 
78 ifeq ($(KBUILD_VERBOSE),1)
79   quiet =
80   Q =
81 else
82   quiet=quiet_
83   Q = @
84 endif
85 
86 # If the user is running make -s (silent mode), suppress echoing of
87 # commands
88 
89 ifneq ($(filter 4.%,$(MAKE_VERSION)),)	# make-4
90 ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
91   quiet=silent_
92 endif
93 else					# make-3.8x
94 ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
95   quiet=silent_
96 endif
97 endif
98 
99 export quiet Q KBUILD_VERBOSE
100 
101 # kbuild supports saving output files in a separate directory.
102 # To locate output files in a separate directory two syntaxes are supported.
103 # In both cases the working directory must be the root of the kernel src.
104 # 1) O=
105 # Use "make O=dir/to/store/output/files/"
106 #
107 # 2) Set KBUILD_OUTPUT
108 # Set the environment variable KBUILD_OUTPUT to point to the directory
109 # where the output files shall be placed.
110 # export KBUILD_OUTPUT=dir/to/store/output/files/
111 # make
112 #
113 # The O= assignment takes precedence over the KBUILD_OUTPUT environment
114 # variable.
115 
116 # KBUILD_SRC is set on invocation of make in OBJ directory
117 # KBUILD_SRC is not intended to be used by the regular user (for now)
118 ifeq ($(KBUILD_SRC),)
119 
120 # OK, Make called in directory where kernel src resides
121 # Do we want to locate output files in a separate directory?
122 ifeq ("$(origin O)", "command line")
123   KBUILD_OUTPUT := $(O)
124 endif
125 
126 # That's our default target when none is given on the command line
127 PHONY := _all
128 _all:
129 
130 # Cancel implicit rules on top Makefile
131 $(CURDIR)/Makefile Makefile: ;
132 
133 ifneq ($(KBUILD_OUTPUT),)
134 # Invoke a second make in the output directory, passing relevant variables
135 # check that the output directory actually exists
136 saved-output := $(KBUILD_OUTPUT)
137 KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
138 								&& /bin/pwd)
139 $(if $(KBUILD_OUTPUT),, \
140      $(error failed to create output directory "$(saved-output)"))
141 
142 PHONY += $(MAKECMDGOALS) sub-make
143 
144 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
145 	@:
146 
147 sub-make: FORCE
148 	$(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
149 	-f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
150 
151 # Leave processing to above invocation of make
152 skip-makefile := 1
153 endif # ifneq ($(KBUILD_OUTPUT),)
154 endif # ifeq ($(KBUILD_SRC),)
155 
156 # We process the rest of the Makefile if this is the final invocation of make
157 ifeq ($(skip-makefile),)
158 
159 # Do not print "Entering directory ...",
160 # but we want to display it when entering to the output directory
161 # so that IDEs/editors are able to understand relative filenames.
162 MAKEFLAGS += --no-print-directory
163 
164 # Call a source code checker (by default, "sparse") as part of the
165 # C compilation.
166 #
167 # Use 'make C=1' to enable checking of only re-compiled files.
168 # Use 'make C=2' to enable checking of *all* source files, regardless
169 # of whether they are re-compiled or not.
170 #
171 # See the file "Documentation/sparse.txt" for more details, including
172 # where to get the "sparse" utility.
173 
174 ifeq ("$(origin C)", "command line")
175   KBUILD_CHECKSRC = $(C)
176 endif
177 ifndef KBUILD_CHECKSRC
178   KBUILD_CHECKSRC = 0
179 endif
180 
181 # Use make M=dir to specify directory of external module to build
182 # Old syntax make ... SUBDIRS=$PWD is still supported
183 # Setting the environment variable KBUILD_EXTMOD take precedence
184 ifdef SUBDIRS
185   KBUILD_EXTMOD ?= $(SUBDIRS)
186 endif
187 
188 ifeq ("$(origin M)", "command line")
189   KBUILD_EXTMOD := $(M)
190 endif
191 
192 # If building an external module we do not care about the all: rule
193 # but instead _all depend on modules
194 PHONY += all
195 ifeq ($(KBUILD_EXTMOD),)
196 _all: all
197 else
198 _all: modules
199 endif
200 
201 ifeq ($(KBUILD_SRC),)
202         # building in the source tree
203         srctree := .
204 else
205         ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
206                 # building in a subdirectory of the source tree
207                 srctree := ..
208         else
209                 srctree := $(KBUILD_SRC)
210         endif
211 endif
212 objtree		:= .
213 src		:= $(srctree)
214 obj		:= $(objtree)
215 
216 VPATH		:= $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
217 
218 export srctree objtree VPATH
219 
220 # Make sure CDPATH settings don't interfere
221 unexport CDPATH
222 
223 #########################################################################
224 
225 HOSTARCH := $(shell uname -m | \
226 	sed -e s/i.86/x86/ \
227 	    -e s/sun4u/sparc64/ \
228 	    -e s/arm.*/arm/ \
229 	    -e s/sa110/arm/ \
230 	    -e s/ppc64/powerpc/ \
231 	    -e s/ppc/powerpc/ \
232 	    -e s/macppc/powerpc/\
233 	    -e s/sh.*/sh/)
234 
235 HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
236 	    sed -e 's/\(cygwin\).*/cygwin/')
237 
238 export	HOSTARCH HOSTOS
239 
240 #########################################################################
241 
242 # set default to nothing for native builds
243 ifeq ($(HOSTARCH),$(ARCH))
244 CROSS_COMPILE ?=
245 endif
246 
247 KCONFIG_CONFIG	?= .config
248 export KCONFIG_CONFIG
249 
250 # SHELL used by kbuild
251 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
252 	  else if [ -x /bin/bash ]; then echo /bin/bash; \
253 	  else echo sh; fi ; fi)
254 
255 HOSTCC       = cc
256 HOSTCXX      = c++
257 HOSTCFLAGS   = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
258 		$(if $(CONFIG_TOOLS_DEBUG),-g)
259 HOSTCXXFLAGS = -O2
260 
261 # With the move to GCC 6, we have implicitly upgraded our language
262 # standard to GNU11 (see https://gcc.gnu.org/gcc-5/porting_to.html).
263 # Some Linux distributions (including RHEL7, SLES13, Debian 8) still
264 # have older compilers as their default, so we make it explicit for
265 # these that our host tools are GNU11 (i.e. C11 w/ GNU extensions).
266 CSTD_FLAG := -std=gnu11
267 ifeq ($(HOSTOS),linux)
268 HOSTCFLAGS += $(CSTD_FLAG)
269 endif
270 
271 ifeq ($(HOSTOS),cygwin)
272 HOSTCFLAGS	+= -ansi
273 endif
274 
275 # Mac OS X / Darwin's C preprocessor is Apple specific.  It
276 # generates numerous errors and warnings.  We want to bypass it
277 # and use GNU C's cpp.	To do this we pass the -traditional-cpp
278 # option to the compiler.  Note that the -traditional-cpp flag
279 # DOES NOT have the same semantics as GNU C's flag, all it does
280 # is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
281 #
282 # Apple's linker is similar, thanks to the new 2 stage linking
283 # multiple symbol definitions are treated as errors, hence the
284 # -multiply_defined suppress option to turn off this error.
285 #
286 ifeq ($(HOSTOS),darwin)
287 # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
288 DARWIN_MAJOR_VERSION	= $(shell sw_vers -productVersion | cut -f 1 -d '.')
289 DARWIN_MINOR_VERSION	= $(shell sw_vers -productVersion | cut -f 2 -d '.')
290 
291 os_x_before	= $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
292 	$(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
293 
294 os_x_after = $(shell if [ $(DARWIN_MAJOR_VERSION) -ge $(1) -a \
295 	$(DARWIN_MINOR_VERSION) -ge $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
296 
297 # Snow Leopards build environment has no longer restrictions as described above
298 HOSTCC       = $(call os_x_before, 10, 5, "cc", "gcc")
299 HOSTCFLAGS  += $(call os_x_before, 10, 4, "-traditional-cpp")
300 HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
301 
302 # since Lion (10.7) ASLR is on by default, but we use linker generated lists
303 # in some host tools which is a problem then ... so disable ASLR for these
304 # tools
305 HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie")
306 
307 # macOS Mojave (10.14.X)
308 # Undefined symbols for architecture x86_64: "_PyArg_ParseTuple"
309 HOSTLDFLAGS += $(call os_x_after, 10, 14, "-lpython -dynamclib", "")
310 endif
311 
312 # Decide whether to build built-in, modular, or both.
313 # Normally, just do built-in.
314 
315 KBUILD_MODULES :=
316 KBUILD_BUILTIN := 1
317 
318 # If we have only "make modules", don't compile built-in objects.
319 # When we're building modules with modversions, we need to consider
320 # the built-in objects during the descend as well, in order to
321 # make sure the checksums are up to date before we record them.
322 
323 ifeq ($(MAKECMDGOALS),modules)
324   KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
325 endif
326 
327 # If we have "make <whatever> modules", compile modules
328 # in addition to whatever we do anyway.
329 # Just "make" or "make all" shall build modules as well
330 
331 # U-Boot does not need modules
332 #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
333 #  KBUILD_MODULES := 1
334 #endif
335 
336 #ifeq ($(MAKECMDGOALS),)
337 #  KBUILD_MODULES := 1
338 #endif
339 
340 export KBUILD_MODULES KBUILD_BUILTIN
341 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
342 
343 # We need some generic definitions (do not try to remake the file).
344 scripts/Kbuild.include: ;
345 include scripts/Kbuild.include
346 
347 # Make variables (CC, etc...)
348 
349 AS		= $(CROSS_COMPILE)as
350 # Always use GNU ld
351 ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
352 LD		= $(CROSS_COMPILE)ld.bfd
353 else
354 LD		= $(CROSS_COMPILE)ld
355 endif
356 CC		= $(CROSS_COMPILE)gcc
357 CPP		= $(CC) -E
358 AR		= $(CROSS_COMPILE)ar
359 NM		= $(CROSS_COMPILE)nm
360 LDR		= $(CROSS_COMPILE)ldr
361 STRIP		= $(CROSS_COMPILE)strip
362 OBJCOPY		= $(CROSS_COMPILE)objcopy
363 OBJDUMP		= $(CROSS_COMPILE)objdump
364 LEX		= flex
365 YACC		= bison
366 AWK		= awk
367 PERL		= perl
368 PYTHON		?= python
369 PYTHON2		= python2
370 PYTHON3		= python3
371 DTC		?= $(objtree)/scripts/dtc/dtc
372 CHECK		= sparse
373 
374 CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
375 		  -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
376 
377 KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
378 
379 KBUILD_CFLAGS   := -Wall -Wstrict-prototypes \
380 		   -Wno-format-security \
381 		   -fno-builtin -ffreestanding $(CSTD_FLAG)
382 KBUILD_CFLAGS	+= -fshort-wchar -fno-strict-aliasing
383 KBUILD_AFLAGS   := -D__ASSEMBLY__
384 
385 # Don't generate position independent code
386 KBUILD_CFLAGS	+= $(call cc-option,-fno-PIE)
387 KBUILD_AFLAGS	+= $(call cc-option,-fno-PIE)
388 
389 # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
390 UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
391 UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
392 
393 export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
394 export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
395 export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
396 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
397 export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3
398 export HOSTCXX HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
399 
400 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
401 export KBUILD_CFLAGS KBUILD_AFLAGS
402 
403 # When compiling out-of-tree modules, put MODVERDIR in the module
404 # tree rather than in the kernel tree. The kernel tree might
405 # even be read-only.
406 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
407 
408 # Files to ignore in find ... statements
409 
410 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o    \
411 			  -name CVS -o -name .pc -o -name .hg -o -name .git \) \
412 			  -prune -o
413 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
414 			 --exclude CVS --exclude .pc --exclude .hg --exclude .git
415 
416 # ===========================================================================
417 # Rules shared between *config targets and build targets
418 
419 # Basic helpers built in scripts/
420 PHONY += scripts_basic
421 scripts_basic:
422 	$(Q)$(MAKE) $(build)=scripts/basic
423 	$(Q)rm -f .tmp_quiet_recordmcount
424 
425 # To avoid any implicit rule to kick in, define an empty command.
426 scripts/basic/%: scripts_basic ;
427 
428 PHONY += outputmakefile
429 # outputmakefile generates a Makefile in the output directory, if using a
430 # separate output directory. This allows convenient use of make in the
431 # output directory.
432 outputmakefile:
433 ifneq ($(KBUILD_SRC),)
434 	$(Q)ln -fsn $(srctree) source
435 	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
436 	    $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
437 endif
438 
439 # To make sure we do not include .config for any of the *config targets
440 # catch them early, and hand them over to scripts/kconfig/Makefile
441 # It is allowed to specify more targets when calling make, including
442 # mixing *config targets and build targets.
443 # For example 'make oldconfig all'.
444 # Detect when mixed targets is specified, and make a second invocation
445 # of make so .config is not included in this case either (for *config).
446 
447 version_h := include/generated/version_autogenerated.h
448 timestamp_h := include/generated/timestamp_autogenerated.h
449 defaultenv_h := include/generated/defaultenv_autogenerated.h
450 
451 no-dot-config-targets := clean clobber mrproper distclean \
452 			 help %docs check% coccicheck \
453 			 ubootversion backup tests check qcheck
454 
455 config-targets := 0
456 mixed-targets  := 0
457 dot-config     := 1
458 
459 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
460 	ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
461 		dot-config := 0
462 	endif
463 endif
464 
465 ifeq ($(KBUILD_EXTMOD),)
466         ifneq ($(filter config %config,$(MAKECMDGOALS)),)
467                 config-targets := 1
468                 ifneq ($(words $(MAKECMDGOALS)),1)
469                         mixed-targets := 1
470                 endif
471         endif
472 endif
473 
474 ifeq ($(mixed-targets),1)
475 # ===========================================================================
476 # We're called with mixed targets (*config and build targets).
477 # Handle them one by one.
478 
479 PHONY += $(MAKECMDGOALS) __build_one_by_one
480 
481 $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
482 	@:
483 
484 __build_one_by_one:
485 	$(Q)set -e; \
486 	for i in $(MAKECMDGOALS); do \
487 		$(MAKE) -f $(srctree)/Makefile $$i; \
488 	done
489 
490 else
491 ifeq ($(config-targets),1)
492 # ===========================================================================
493 # *config targets only - make sure prerequisites are updated, and descend
494 # in scripts/kconfig to make the *config target
495 
496 KBUILD_DEFCONFIG := sandbox_defconfig
497 export KBUILD_DEFCONFIG KBUILD_KCONFIG
498 
499 config: scripts_basic outputmakefile FORCE
500 	$(Q)$(MAKE) $(build)=scripts/kconfig $@
501 
502 %config: scripts_basic outputmakefile FORCE
503 	$(Q)$(MAKE) $(build)=scripts/kconfig $@
504 
505 else
506 # ===========================================================================
507 # Build targets only - this includes vmlinux, arch specific targets, clean
508 # targets and others. In general all targets except *config targets.
509 
510 # Additional helpers built in scripts/
511 # Carefully list dependencies so we do not try to build scripts twice
512 # in parallel
513 PHONY += scripts
514 scripts: scripts_basic include/config/auto.conf
515 	$(Q)$(MAKE) $(build)=$(@)
516 
517 ifeq ($(dot-config),1)
518 # Read in config
519 -include include/config/auto.conf
520 
521 # Read in dependencies to all Kconfig* files, make sure to run
522 # oldconfig if changes are detected.
523 -include include/config/auto.conf.cmd
524 
525 # To avoid any implicit rule to kick in, define an empty command
526 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
527 
528 # If .config is newer than include/config/auto.conf, someone tinkered
529 # with it and forgot to run make oldconfig.
530 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
531 # we execute the config step to be sure to catch updated Kconfig files
532 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
533 	$(Q)$(MAKE) -f $(srctree)/Makefile syncconfig
534 	@# If the following part fails, include/config/auto.conf should be
535 	@# deleted so "make silentoldconfig" will be re-run on the next build.
536 	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
537 		{ rm -f include/config/auto.conf; false; }
538 	@# include/config.h has been updated after "make silentoldconfig".
539 	@# We need to touch include/config/auto.conf so it gets newer
540 	@# than include/config.h.
541 	@# Otherwise, 'make silentoldconfig' would be invoked twice.
542 	$(Q)touch include/config/auto.conf
543 
544 u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg:
545 	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@)
546 
547 -include include/autoconf.mk
548 -include include/autoconf.mk.dep
549 
550 # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
551 # is up-to-date. When we switch to a different board configuration, old CONFIG
552 # macros are still remaining in include/config/auto.conf. Without the following
553 # gimmick, wrong config.mk would be included leading nasty warnings/errors.
554 ifneq ($(wildcard $(KCONFIG_CONFIG)),)
555 ifneq ($(wildcard include/config/auto.conf),)
556 autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
557 						include/config/auto.conf)
558 ifeq ($(autoconf_is_old),)
559 include config.mk
560 include arch/$(ARCH)/Makefile
561 endif
562 endif
563 endif
564 
565 # These are set by the arch-specific config.mk. Make sure they are exported
566 # so they can be used when building an EFI application.
567 export EFI_LDS		# Filename of EFI link script in arch/$(ARCH)/lib
568 export EFI_CRT0		# Filename of EFI CRT0 in arch/$(ARCH)/lib
569 export EFI_RELOC	# Filename of EFU relocation code in arch/$(ARCH)/lib
570 export CFLAGS_EFI	# Compiler flags to add when building EFI app
571 export CFLAGS_NON_EFI	# Compiler flags to remove when building EFI app
572 export EFI_TARGET	# binutils target if EFI is natively supported
573 
574 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
575 # that (or fail if absent).  Otherwise, search for a linker script in a
576 # standard location.
577 
578 ifndef LDSCRIPT
579 	#LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
580 	ifdef CONFIG_SYS_LDSCRIPT
581 		# need to strip off double quotes
582 		LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
583 	endif
584 endif
585 
586 # If there is no specified link script, we look in a number of places for it
587 ifndef LDSCRIPT
588 	ifeq ($(wildcard $(LDSCRIPT)),)
589 		LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
590 	endif
591 	ifeq ($(wildcard $(LDSCRIPT)),)
592 		LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
593 	endif
594 	ifeq ($(wildcard $(LDSCRIPT)),)
595 		LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
596 	endif
597 endif
598 
599 else
600 # Dummy target needed, because used as prerequisite
601 include/config/auto.conf: ;
602 endif # $(dot-config)
603 
604 #
605 # Xtensa linker script cannot be preprocessed with -ansi because of
606 # preprocessor operations on strings that don't make C identifiers.
607 #
608 ifeq ($(CONFIG_XTENSA),)
609 LDPPFLAGS	+= -ansi
610 endif
611 
612 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
613 KBUILD_CFLAGS	+= -Os
614 else
615 KBUILD_CFLAGS	+= -O2
616 endif
617 
618 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
619 KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
620 
621 # change __FILE__ to the relative path from the srctree
622 KBUILD_CFLAGS	+= $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
623 
624 KBUILD_CFLAGS	+= -g
625 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
626 # option to the assembler.
627 KBUILD_AFLAGS	+= -g
628 
629 # Report stack usage if supported
630 # ARC tools based on GCC 7.1 has an issue with stack usage
631 # with naked functions, see commit message for more details
632 ifndef CONFIG_ARC
633 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
634 	KBUILD_CFLAGS += -fstack-usage
635 endif
636 endif
637 
638 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
639 ifeq ($(cc-name),clang)
640 KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
641 KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
642 KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
643 KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
644 KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
645 endif
646 
647 # turn jbsr into jsr for m68k
648 ifeq ($(ARCH),m68k)
649 ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
650 KBUILD_AFLAGS += -Wa,-gstabs,-S
651 endif
652 endif
653 
654 # Prohibit date/time macros, which would make the build non-deterministic
655 KBUILD_CFLAGS   += $(call cc-option,-Werror=date-time)
656 
657 include scripts/Makefile.extrawarn
658 
659 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
660 KBUILD_CPPFLAGS += $(KCPPFLAGS)
661 KBUILD_AFLAGS += $(KAFLAGS)
662 KBUILD_CFLAGS += $(KCFLAGS)
663 
664 # Use UBOOTINCLUDE when you must reference the include/ directory.
665 # Needed to be compatible with the O= option
666 UBOOTINCLUDE    := \
667 		-Iinclude \
668 		$(if $(KBUILD_SRC), -I$(srctree)/include) \
669 		$(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \
670 			$(if $(CONFIG_HAS_THUMB2),, \
671 				-I$(srctree)/arch/$(ARCH)/thumb1/include),) \
672 		-I$(srctree)/arch/$(ARCH)/include \
673 		-include $(srctree)/include/linux/kconfig.h
674 
675 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
676 CHECKFLAGS     += $(NOSTDINC_FLAGS)
677 
678 # FIX ME
679 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
680 							$(NOSTDINC_FLAGS)
681 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
682 
683 #########################################################################
684 # U-Boot objects....order is important (i.e. start must be first)
685 
686 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
687 
688 libs-y += lib/
689 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
690 libs-$(CONFIG_OF_EMBED) += dts/
691 libs-y += fs/
692 libs-y += net/
693 libs-y += disk/
694 libs-y += drivers/
695 libs-y += drivers/dma/
696 libs-y += drivers/gpio/
697 libs-y += drivers/i2c/
698 libs-y += drivers/mtd/
699 libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/raw/
700 libs-y += drivers/mtd/onenand/
701 libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
702 libs-y += drivers/mtd/spi/
703 libs-y += drivers/net/
704 libs-y += drivers/net/phy/
705 libs-y += drivers/power/ \
706 	drivers/power/domain/ \
707 	drivers/power/fuel_gauge/ \
708 	drivers/power/mfd/ \
709 	drivers/power/pmic/ \
710 	drivers/power/battery/ \
711 	drivers/power/regulator/
712 libs-y += drivers/spi/
713 libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
714 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
715 libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
716 libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/
717 libs-y += drivers/serial/
718 libs-y += drivers/usb/dwc3/
719 libs-y += drivers/usb/common/
720 libs-y += drivers/usb/emul/
721 libs-y += drivers/usb/eth/
722 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/
723 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/udc/
724 libs-y += drivers/usb/host/
725 libs-y += drivers/usb/musb/
726 libs-y += drivers/usb/musb-new/
727 libs-y += drivers/usb/phy/
728 libs-y += drivers/usb/ulpi/
729 libs-y += cmd/
730 libs-y += common/
731 libs-y += env/
732 libs-$(CONFIG_API) += api/
733 libs-$(CONFIG_HAS_POST) += post/
734 libs-$(CONFIG_UNIT_TEST) += test/ test/dm/
735 libs-$(CONFIG_UT_ENV) += test/env/
736 libs-$(CONFIG_UT_OVERLAY) += test/overlay/
737 
738 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
739 
740 libs-y := $(sort $(libs-y))
741 
742 u-boot-dirs	:= $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
743 
744 u-boot-alldirs	:= $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
745 
746 libs-y		:= $(patsubst %/, %/built-in.o, $(libs-y))
747 
748 u-boot-init := $(head-y)
749 u-boot-main := $(libs-y)
750 
751 
752 # Add GCC lib
753 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
754 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
755 else
756 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
757 endif
758 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
759 
760 ifdef CONFIG_CC_COVERAGE
761 KBUILD_CFLAGS += --coverage
762 PLATFORM_LIBGCC += -lgcov
763 endif
764 
765 export PLATFORM_LIBS
766 export PLATFORM_LIBGCC
767 
768 # Special flags for CPP when processing the linker script.
769 # Pass the version down so we can handle backwards compatibility
770 # on the fly.
771 LDPPFLAGS += \
772 	-include $(srctree)/include/u-boot/u-boot.lds.h \
773 	-DCPUDIR=$(CPUDIR) \
774 	$(shell $(LD) --version | \
775 	  sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
776 
777 #########################################################################
778 #########################################################################
779 
780 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
781 BOARD_SIZE_CHECK = \
782 	@actual=`wc -c $@ | awk '{print $$1}'`; \
783 	limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
784 	if test $$actual -gt $$limit; then \
785 		echo "$@ exceeds file size limit:" >&2 ; \
786 		echo "  limit:  $$limit bytes" >&2 ; \
787 		echo "  actual: $$actual bytes" >&2 ; \
788 		echo "  excess: $$((actual - limit)) bytes" >&2; \
789 		exit 1; \
790 	fi
791 else
792 BOARD_SIZE_CHECK =
793 endif
794 
795 # Statically apply RELA-style relocations (currently arm64 only)
796 # This is useful for arm64 where static relocation needs to be performed on
797 # the raw binary, but certain simulators only accept an ELF file (but don't
798 # do the relocation).
799 ifneq ($(CONFIG_STATIC_RELA),)
800 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
801 DO_STATIC_RELA = \
802 	start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
803 	end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
804 	tools/relocate-rela $(2) $(3) $$start $$end
805 else
806 DO_STATIC_RELA =
807 endif
808 
809 # Always append ALL so that arch config.mk's can add custom ones
810 ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
811 
812 ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
813 ifeq ($(CONFIG_SPL_FSL_PBL),y)
814 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
815 else
816 ifneq ($(CONFIG_SECURE_BOOT), y)
817 # For Secure Boot The Image needs to be signed and Header must also
818 # be included. So The image has to be built explicitly
819 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
820 endif
821 endif
822 ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
823 ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy)
824 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
825 else
826 ifeq ($(CONFIG_MX7)$(CONFIG_SECURE_BOOT), yy)
827 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
828 else
829 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
830 endif
831 endif
832 ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
833 ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
834 ifeq ($(CONFIG_SPL_FRAMEWORK),y)
835 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
836 endif
837 ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
838 ifneq ($(CONFIG_SPL_TARGET),)
839 ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
840 endif
841 ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
842 ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
843 ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
844 
845 ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),)
846 ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
847 endif
848 
849 # Build a combined spl + u-boot image for sunxi
850 ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy)
851 ALL-y += u-boot-sunxi-with-spl.bin
852 endif
853 
854 # enable combined SPL/u-boot/dtb rules for tegra
855 ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy)
856 ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
857 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin
858 endif
859 
860 ALL-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin
861 
862 # Add optional build target if defined in board/cpu/soc headers
863 ifneq ($(CONFIG_BUILD_TARGET),)
864 ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
865 endif
866 
867 ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
868 ALL-y += init_sp_bss_offset_check
869 endif
870 
871 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
872 ALL-y += u-boot-with-dtb.bin
873 endif
874 
875 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
876 
877 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
878 LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
879 
880 ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
881 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
882 endif
883 
884 # Normally we fill empty space with 0xff
885 quiet_cmd_objcopy = OBJCOPY $@
886 cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
887 	$(OBJCOPYFLAGS_$(@F)) $< $@
888 
889 # Provide a version which does not do this, for use by EFI
890 quiet_cmd_zobjcopy = OBJCOPY $@
891 cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
892 
893 quiet_cmd_efipayload = OBJCOPY $@
894 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
895 
896 MKIMAGEOUTPUT ?= /dev/null
897 
898 quiet_cmd_mkimage = MKIMAGE $@
899 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
900 	>$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
901 
902 quiet_cmd_mkfitimage = MKIMAGE $@
903 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -p $(CONFIG_FIT_EXTERNAL_OFFSET) $@\
904 	>$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
905 
906 quiet_cmd_cat = CAT     $@
907 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
908 
909 append = cat $(filter-out $< $(PHONY), $^) >> $@
910 
911 quiet_cmd_pad_cat = CAT     $@
912 cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
913 
914 cfg: u-boot.cfg
915 
916 quiet_cmd_cfgcheck = CFGCHK  $2
917 cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
918 		$(srctree)/scripts/config_whitelist.txt $(srctree)
919 
920 all:		$(ALL-y)
921 ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y)
922 	@echo >&2 "===================== WARNING ======================"
923 	@echo >&2 "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
924 	@echo >&2 "(possibly in a subsequent patch in your series)"
925 	@echo >&2 "before sending patches to the mailing list."
926 	@echo >&2 "===================================================="
927 endif
928 ifeq ($(CONFIG_MMC),y)
929 ifneq ($(CONFIG_DM_MMC)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
930 	@echo >&2 "===================== WARNING ======================"
931 	@echo >&2 "This board does not use CONFIG_DM_MMC. Please update"
932 	@echo >&2 "the board to use CONFIG_DM_MMC before the v2019.04 release."
933 	@echo >&2 "Failure to update by the deadline may result in board removal."
934 	@echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
935 	@echo >&2 "===================================================="
936 endif
937 endif
938 ifeq ($(CONFIG_USB),y)
939 ifneq ($(CONFIG_DM_USB)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
940 	@echo >&2 "===================== WARNING ======================"
941 	@echo >&2 "This board does not use CONFIG_DM_USB. Please update"
942 	@echo >&2 "the board to use CONFIG_DM_USB before the v2019.07 release."
943 	@echo >&2 "Failure to update by the deadline may result in board removal."
944 	@echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
945 	@echo >&2 "===================================================="
946 endif
947 endif
948 ifeq ($(CONFIG_LIBATA)$(CONFIG_MVSATA_IDE),y)
949 ifneq ($(CONFIG_DM_SCSI),y)
950 	@echo >&2 "===================== WARNING ======================"
951 	@echo >&2 "This board does not use CONFIG_DM_SCSI. Please update"
952 	@echo >&2 "the storage controller to use CONFIG_DM_SCSI before the v2019.07 release."
953 	@echo >&2 "Failure to update by the deadline may result in board removal."
954 	@echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
955 	@echo >&2 "===================================================="
956 endif
957 endif
958 ifeq ($(CONFIG_PCI),y)
959 ifneq ($(CONFIG_DM_PCI),y)
960 	@echo >&2 "===================== WARNING ======================"
961 	@echo >&2 "This board does not use CONFIG_DM_PCI Please update"
962 	@echo >&2 "the board to use CONFIG_DM_PCI before the v2019.07 release."
963 	@echo >&2 "Failure to update by the deadline may result in board removal."
964 	@echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
965 	@echo >&2 "===================================================="
966 endif
967 endif
968 ifneq ($(CONFIG_LCD)$(CONFIG_VIDEO),)
969 ifneq ($(CONFIG_DM_VIDEO),y)
970 	@echo >&2 "===================== WARNING ======================"
971 	@echo >&2 "This board does not use CONFIG_DM_VIDEO Please update"
972 	@echo >&2 "the board to use CONFIG_DM_VIDEO before the v2019.07 release."
973 	@echo >&2 "Failure to update by the deadline may result in board removal."
974 	@echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
975 	@echo >&2 "===================================================="
976 endif
977 endif
978 ifeq ($(CONFIG_OF_EMBED),y)
979 	@echo >&2 "===================== WARNING ======================"
980 	@echo >&2 "CONFIG_OF_EMBED is enabled. This option should only"
981 	@echo >&2 "be used for debugging purposes. Please use"
982 	@echo >&2 "CONFIG_OF_SEPARATE for boards in mainline."
983 	@echo >&2 "See doc/README.fdt-control for more info."
984 	@echo >&2 "===================================================="
985 endif
986 ifeq ($(CONFIG_SPI),y)
987 ifneq ($(CONFIG_DM_SPI)$(CONFIG_OF_CONTROL),yy)
988 	@echo >&2 "===================== WARNING ======================"
989 	@echo >&2 "This board does not use CONFIG_DM_SPI. Please update"
990 	@echo >&2 "the board before v2019.04 for no dm conversion"
991 	@echo >&2 "and v2019.07 for partially dm converted drivers."
992 	@echo >&2 "Failure to update can lead to driver/board removal"
993 	@echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
994 	@echo >&2 "===================================================="
995 endif
996 endif
997 ifeq ($(CONFIG_SPI_FLASH),y)
998 ifneq ($(CONFIG_DM_SPI_FLASH)$(CONFIG_OF_CONTROL),yy)
999 	@echo >&2 "===================== WARNING ======================"
1000 	@echo >&2 "This board does not use CONFIG_DM_SPI_FLASH. Please update"
1001 	@echo >&2 "the board to use CONFIG_SPI_FLASH before the v2019.07 release."
1002 	@echo >&2 "Failure to update by the deadline may result in board removal."
1003 	@echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1004 	@echo >&2 "===================================================="
1005 endif
1006 endif
1007 	@# Check that this build does not use CONFIG options that we do not
1008 	@# know about unless they are in Kconfig. All the existing CONFIG
1009 	@# options are whitelisted, so new ones should not be added.
1010 	$(call cmd,cfgcheck,u-boot.cfg)
1011 
1012 PHONY += dtbs
1013 dtbs: dts/dt.dtb
1014 	@:
1015 dts/dt.dtb: u-boot
1016 	$(Q)$(MAKE) $(build)=dts dtbs
1017 
1018 quiet_cmd_copy = COPY    $@
1019       cmd_copy = cp $< $@
1020 
1021 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1022 
1023 fit-dtb.blob: dts/dt.dtb FORCE
1024 	$(call if_changed,mkimage)
1025 
1026 MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1027 	-a 0 -e 0 -E \
1028 	$(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
1029 
1030 u-boot-fit-dtb.bin: u-boot-nodtb.bin fit-dtb.blob
1031 	$(call if_changed,cat)
1032 
1033 u-boot.bin: u-boot-fit-dtb.bin FORCE
1034 	$(call if_changed,copy)
1035 else ifeq ($(CONFIG_OF_SEPARATE),y)
1036 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1037 	$(call if_changed,cat)
1038 
1039 u-boot.bin: u-boot-dtb.bin FORCE
1040 	$(call if_changed,copy)
1041 else
1042 u-boot.bin: u-boot-nodtb.bin FORCE
1043 	$(call if_changed,copy)
1044 endif
1045 
1046 %.imx: %.bin
1047 	$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1048 
1049 %.vyb: %.imx
1050 	$(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
1051 
1052 quiet_cmd_copy = COPY    $@
1053       cmd_copy = cp $< $@
1054 
1055 u-boot.dtb: dts/dt.dtb
1056 	$(call cmd,copy)
1057 
1058 OBJCOPYFLAGS_u-boot.hex := -O ihex
1059 
1060 OBJCOPYFLAGS_u-boot.srec := -O srec
1061 
1062 u-boot.hex u-boot.srec: u-boot FORCE
1063 	$(call if_changed,objcopy)
1064 
1065 OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
1066 
1067 u-boot-elf.srec: u-boot.elf FORCE
1068 	$(call if_changed,objcopy)
1069 
1070 OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
1071 
1072 spl/u-boot-spl.srec: spl/u-boot-spl FORCE
1073 	$(call if_changed,objcopy)
1074 
1075 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
1076 		$(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \
1077 		$(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),-R .bootpg -R .resetvec)
1078 
1079 OBJCOPYFLAGS_u-boot-spl.hex = $(OBJCOPYFLAGS_u-boot.hex)
1080 
1081 spl/u-boot-spl.hex: spl/u-boot-spl FORCE
1082 	$(call if_changed,objcopy)
1083 
1084 binary_size_check: u-boot-nodtb.bin FORCE
1085 	@file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
1086 	map_size=$(shell cat u-boot.map | \
1087 		awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
1088 		| sed 's/0X//g' \
1089 		| bc); \
1090 	if [ "" != "$$map_size" ]; then \
1091 		if test $$map_size -ne $$file_size; then \
1092 			echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
1093 			echo "  but u-boot-nodtb.bin shows $$file_size" >&2 ; \
1094 			exit 1; \
1095 		fi \
1096 	fi
1097 
1098 ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
1099 ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
1100 subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
1101 else
1102 subtract_sys_malloc_f_len = true
1103 endif
1104 # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
1105 # so low that the DTB could probably use 90%+ of the available space, for
1106 # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
1107 # safe for now and tweak this later if space becomes tight.
1108 # A rejected alternative would be to check that some absolute minimum stack
1109 # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
1110 # deliberately build-specific, to take account of build-to-build stack usage
1111 # differences due to different feature sets, there is no common absolute value
1112 # to check against.
1113 init_sp_bss_offset_check: u-boot.dtb FORCE
1114 	@dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
1115 	space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
1116 	$(subtract_sys_malloc_f_len) ; \
1117 	quarter_space=$$(($${space} / 4)) ; \
1118 	if [ $${dtb_size} -gt $${quarter_space} ]; then \
1119 		echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
1120 		echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
1121 		exit 1 ; \
1122 	fi
1123 endif
1124 
1125 u-boot-nodtb.bin: u-boot FORCE
1126 	$(call if_changed,objcopy)
1127 	$(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
1128 	$(BOARD_SIZE_CHECK)
1129 
1130 u-boot.ldr:	u-boot
1131 		$(CREATE_LDR_ENV)
1132 		$(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
1133 		$(BOARD_SIZE_CHECK)
1134 
1135 # binman
1136 # ---------------------------------------------------------------------------
1137 # Use 'make BINMAN_DEBUG=1' to enable debugging
1138 quiet_cmd_binman = BINMAN  $@
1139 cmd_binman = $(srctree)/tools/binman/binman -u -d u-boot.dtb -O . -m \
1140 		-I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \
1141 		$(if $(BINMAN_DEBUG),-D) $(BINMAN_$(@F)) $<
1142 
1143 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
1144 
1145 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
1146 
1147 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
1148 	$(call if_changed,objcopy)
1149 
1150 #
1151 # U-Boot entry point, needed for booting of full-blown U-Boot
1152 # from the SPL U-Boot version.
1153 #
1154 ifndef CONFIG_SYS_UBOOT_START
1155 CONFIG_SYS_UBOOT_START := 0
1156 endif
1157 
1158 # Boards with more complex image requirments can provide an .its source file
1159 # or a generator script
1160 ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
1161 U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
1162 else
1163 ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
1164 U_BOOT_ITS := u-boot.its
1165 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-imx/mkimage_fit_atf.sh")
1166 U_BOOT_ITS_DEPS += u-boot-nodtb.bin
1167 endif
1168 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-rockchip/make_fit_atf.py")
1169 U_BOOT_ITS_DEPS += u-boot
1170 endif
1171 $(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE
1172 	$(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
1173 	$(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
1174 endif
1175 endif
1176 
1177 ifdef CONFIG_SPL_LOAD_FIT
1178 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1179 	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1180 	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1181 	$(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
1182 else
1183 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1184 	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1185 	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1186 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1187 	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1188 	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1189 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1190 CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
1191 endif
1192 
1193 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1194 
1195 MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1196 	-T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
1197 
1198 MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1199 	-T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1200 	$(if $(KEYDIR),-k $(KEYDIR))
1201 
1202 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1203 		-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1204 
1205 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1206 		$(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
1207 	$(call if_changed,mkimage)
1208 	$(BOARD_SIZE_CHECK)
1209 
1210 ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y)
1211 MKIMAGEFLAGS_u-boot.itb =
1212 else
1213 MKIMAGEFLAGS_u-boot.itb = -E
1214 endif
1215 
1216 u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE
1217 	$(call if_changed,mkfitimage)
1218 	$(BOARD_SIZE_CHECK)
1219 
1220 u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
1221 	$(call if_changed,mkimage)
1222 
1223 u-boot.sha1:	u-boot.bin
1224 		tools/ubsha1 u-boot.bin
1225 
1226 u-boot.dis:	u-boot
1227 		$(OBJDUMP) -d $< > $@
1228 
1229 ifneq ($(CONFIG_SPL_PAYLOAD),)
1230 SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%)
1231 else
1232 SPL_PAYLOAD := u-boot.bin
1233 endif
1234 
1235 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1236 				   --pad-to=$(CONFIG_SPL_PAD_TO)
1237 u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
1238 	$(call if_changed,pad_cat)
1239 
1240 ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy)
1241 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1242 
1243 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1244 	$(call if_changed,mkimage)
1245 
1246 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1247 
1248 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1249 	$(call if_changed,objcopy)
1250 
1251 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1252 
1253 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1254 	$(call if_changed,objcopy)
1255 
1256 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1257 	$(call if_changed,cat)
1258 
1259 CLEAN_FILES += lpc32xx-*
1260 endif
1261 
1262 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1263 				   --pad-to=$(CONFIG_TPL_PAD_TO)
1264 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1265 	$(call if_changed,pad_cat)
1266 
1267 SPL: spl/u-boot-spl.bin FORCE
1268 	$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1269 
1270 ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y)
1271 flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE
1272 	$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1273 endif
1274 
1275 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
1276 	$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1277 
1278 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1279 
1280 u-boot.ubl: u-boot-with-spl.bin FORCE
1281 	$(call if_changed,mkimage)
1282 
1283 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1284 	$(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1285 	-T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1286 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1287 	$(call if_changed,mkimage)
1288 
1289 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1290 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1291 	$(call if_changed,pad_cat)
1292 
1293 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1294 	$(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1295 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1296 	$(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1297 
1298 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1299 # Both images are created using mkimage (crc etc), so that the ROM
1300 # bootloader can check its integrity. Padding needs to be done to the
1301 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1302 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1303 # The resulting image containing both U-Boot images is called u-boot.spr
1304 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1305 	-a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1306 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1307 	$(call if_changed,mkimage)
1308 
1309 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1310 			  --gap-fill=0xff
1311 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1312 	$(call if_changed,pad_cat)
1313 
1314 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1315 quiet_cmd_socboot = SOCBOOT $@
1316 cmd_socboot = cat	spl/u-boot-spl.sfp spl/u-boot-spl.sfp	\
1317 			spl/u-boot-spl.sfp spl/u-boot-spl.sfp	\
1318 			u-boot.img > $@ || rm -f $@
1319 u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1320 	$(call if_changed,socboot)
1321 endif
1322 
1323 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1324 u-boot-with-dtb.bin: u-boot.bin u-boot.dtb \
1325 	$(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR), u-boot-br.bin) FORCE
1326 	$(call if_changed,binman)
1327 
1328 ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR),y)
1329 OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec
1330 u-boot-br.bin: u-boot FORCE
1331 	$(call if_changed,objcopy)
1332 endif
1333 endif
1334 
1335 # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1336 # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1337 # the middle. This is handled by binman based on an image description in the
1338 # board's device tree.
1339 ifneq ($(CONFIG_X86_RESET_VECTOR),)
1340 rom: u-boot.rom FORCE
1341 
1342 refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1343 	$(call if_changed,copy)
1344 
1345 quiet_cmd_ldr = LD      $@
1346 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1347 	       $(filter-out FORCE,$^) -o $@
1348 
1349 u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \
1350 		$(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1351 		$(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
1352 	$(call if_changed,binman)
1353 
1354 OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
1355 u-boot-x86-16bit.bin: u-boot FORCE
1356 	$(call if_changed,objcopy)
1357 endif
1358 
1359 ifneq ($(CONFIG_ARCH_SUNXI),)
1360 ifeq ($(CONFIG_ARM64),)
1361 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
1362 	$(call if_changed,binman)
1363 else
1364 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE
1365 	$(call if_changed,cat)
1366 endif
1367 endif
1368 
1369 ifneq ($(CONFIG_TEGRA),)
1370 ifneq ($(CONFIG_BINMAN),)
1371 # Makes u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin
1372 %-dtb-tegra.bin %-tegra.bin %-nodtb-tegra.bin: \
1373 		spl/%-spl %.bin FORCE
1374 	$(call if_changed,binman)
1375 else
1376 OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1377 u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1378 	$(call if_changed,pad_cat)
1379 
1380 OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1381 u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1382 	$(call if_changed,pad_cat)
1383 
1384 u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1385 	$(call if_changed,copy)
1386 endif  # binman
1387 endif
1388 
1389 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1390 u-boot-app.efi: u-boot FORCE
1391 	$(call if_changed,zobjcopy)
1392 
1393 u-boot.bin.o: u-boot.bin FORCE
1394 	$(call if_changed,efipayload)
1395 
1396 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1397 	$(call if_changed_dep,cpp_lds)
1398 
1399 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1400 quiet_cmd_u-boot_payload ?= LD      $@
1401       cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1402       -T u-boot-payload.lds arch/x86/cpu/call32.o \
1403       lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1404       $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1405 
1406 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1407 	$(call if_changed,u-boot_payload)
1408 
1409 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1410 u-boot-payload.efi: u-boot-payload FORCE
1411 	$(call if_changed,zobjcopy)
1412 
1413 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1414 	$(call if_changed,cat)
1415 
1416 #Add a target to create boot binary having SPL binary in PBI format
1417 #concatenated with u-boot binary. It is need by PowerPC SoC having
1418 #internal SRAM <= 512KB.
1419 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1420 		-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1421 		-A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1422 
1423 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1424 	$(call if_changed,mkimage)
1425 
1426 ifeq ($(ARCH),arm)
1427 UBOOT_BINLOAD := u-boot.img
1428 else
1429 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1430 UBOOT_BINLOAD := u-boot-with-dtb.bin
1431 else
1432 UBOOT_BINLOAD := u-boot.bin
1433 endif
1434 endif
1435 
1436 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1437 			  --gap-fill=0xff
1438 
1439 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1440 	$(call if_changed,pad_cat)
1441 
1442 # PPC4xx needs the SPL at the end of the image, since the reset vector
1443 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1444 # and need to introduce a new build target with the full blown U-Boot
1445 # at the start padded up to the start of the SPL image. And then concat
1446 # the SPL image to the end.
1447 
1448 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1449 	--pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1450 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1451 	$(call if_changed,pad_cat)
1452 
1453 # Create a new ELF from a raw binary file.
1454 ifndef PLATFORM_ELFENTRY
1455   PLATFORM_ELFENTRY = "_start"
1456 endif
1457 quiet_cmd_u-boot-elf ?= LD      $@
1458 	cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1459 	--defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1460 	-Ttext=$(CONFIG_SYS_TEXT_BASE)
1461 u-boot.elf: u-boot.bin
1462 	$(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1463 	$(call if_changed,u-boot-elf)
1464 
1465 # MediaTek's ARM-based u-boot needs a header to contains its load address
1466 # which is parsed by the BootROM.
1467 # If the SPL build is enabled, the header will be added to the spl binary,
1468 # and the spl binary and the u-boot.img will be combined into one file.
1469 # Otherwise the header will be added to the u-boot.bin directly.
1470 
1471 ifeq ($(CONFIG_SPL),y)
1472 spl/u-boot-spl-mtk.bin: spl/u-boot-spl
1473 
1474 u-boot-mtk.bin: u-boot.dtb u-boot.img spl/u-boot-spl-mtk.bin FORCE
1475 	$(call if_changed,binman)
1476 else
1477 MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \
1478 	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1479 	-n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
1480 
1481 u-boot-mtk.bin: u-boot.bin FORCE
1482 	$(call if_changed,mkimage)
1483 endif
1484 
1485 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1486 
1487 # Rule to link u-boot
1488 # May be overridden by arch/$(ARCH)/config.mk
1489 quiet_cmd_u-boot__ ?= LD      $@
1490       cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1491       -T u-boot.lds $(u-boot-init)                             \
1492       --start-group $(u-boot-main) --end-group                 \
1493       $(PLATFORM_LIBS) -Map u-boot.map;                        \
1494       $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1495 
1496 quiet_cmd_smap = GEN     common/system_map.o
1497 cmd_smap = \
1498 	smap=`$(call SYSTEM_MAP,u-boot) | \
1499 		awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1500 	$(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1501 		-c $(srctree)/common/system_map.c -o common/system_map.o
1502 
1503 u-boot:	$(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1504 	+$(call if_changed,u-boot__)
1505 ifeq ($(CONFIG_KALLSYMS),y)
1506 	$(call cmd,smap)
1507 	$(call cmd,u-boot__) common/system_map.o
1508 endif
1509 
1510 ifeq ($(CONFIG_RISCV),y)
1511 	@tools/prelink-riscv $@ 0
1512 endif
1513 
1514 quiet_cmd_sym ?= SYM     $@
1515       cmd_sym ?= $(OBJDUMP) -t $< > $@
1516 u-boot.sym: u-boot FORCE
1517 	$(call if_changed,sym)
1518 
1519 # The actual objects are generated when descending,
1520 # make sure no implicit rule kicks in
1521 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1522 
1523 # Handle descending into subdirectories listed in $(vmlinux-dirs)
1524 # Preset locale variables to speed up the build process. Limit locale
1525 # tweaks to this spot to avoid wrong language settings when running
1526 # make menuconfig etc.
1527 # Error messages still appears in the original language
1528 
1529 PHONY += $(u-boot-dirs)
1530 $(u-boot-dirs): prepare scripts
1531 	$(Q)$(MAKE) $(build)=$@
1532 
1533 tools: prepare
1534 # The "tools" are needed early
1535 $(filter-out tools, $(u-boot-dirs)): tools
1536 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1537 # is "yes"), so compile examples after U-Boot is compiled.
1538 examples: $(filter-out examples, $(u-boot-dirs))
1539 
1540 define filechk_uboot.release
1541 	echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1542 endef
1543 
1544 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1545 include/config/uboot.release: include/config/auto.conf FORCE
1546 	$(call filechk,uboot.release)
1547 
1548 
1549 # Things we need to do before we recursively start building the kernel
1550 # or the modules are listed in "prepare".
1551 # A multi level approach is used. prepareN is processed before prepareN-1.
1552 # archprepare is used in arch Makefiles and when processed asm symlink,
1553 # version.h and scripts_basic is processed / created.
1554 
1555 # Listed in dependency order
1556 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1557 
1558 # prepare3 is used to check if we are building in a separate output directory,
1559 # and if so do:
1560 # 1) Check that make has not been executed in the kernel src $(srctree)
1561 prepare3: include/config/uboot.release
1562 ifneq ($(KBUILD_SRC),)
1563 	@$(kecho) '  Using $(srctree) as source for U-Boot'
1564 	$(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1565 		echo >&2 "  $(srctree) is not clean, please run 'make mrproper'"; \
1566 		echo >&2 "  in the '$(srctree)' directory.";\
1567 		/bin/false; \
1568 	fi;
1569 endif
1570 
1571 # prepare2 creates a makefile if using a separate output directory
1572 prepare2: prepare3 outputmakefile cfg
1573 
1574 prepare1: prepare2 $(version_h) $(timestamp_h) \
1575                    include/config/auto.conf
1576 ifeq ($(wildcard $(LDSCRIPT)),)
1577 	@echo >&2 "  Could not find linker script."
1578 	@/bin/false
1579 endif
1580 
1581 ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
1582 prepare1: $(defaultenv_h)
1583 endif
1584 
1585 archprepare: prepare1 scripts_basic
1586 
1587 prepare0: archprepare FORCE
1588 	$(Q)$(MAKE) $(build)=.
1589 
1590 # All the preparing..
1591 prepare: prepare0
1592 
1593 # Generate some files
1594 # ---------------------------------------------------------------------------
1595 
1596 define filechk_version.h
1597 	(echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1598 	echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1599 	echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1600 	echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1601 endef
1602 
1603 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1604 # The BSD date on the other hand behaves different and would produce errors
1605 # with the misused '-d' switch.  Respect that and search a working date with
1606 # well known pre- and suffixes for the GNU variant of date.
1607 define filechk_timestamp.h
1608 	(if test -n "$${SOURCE_DATE_EPOCH}"; then \
1609 		SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1610 		DATE=""; \
1611 		for date in gdate date.gnu date; do \
1612 			$${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1613 		done; \
1614 		if test -n "$${DATE}"; then \
1615 			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1616 			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1617 			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1618 			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1619 			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1620 		else \
1621 			return 42; \
1622 		fi; \
1623 	else \
1624 		LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1625 		LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1626 		LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1627 		LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1628 		LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1629 	fi)
1630 endef
1631 
1632 define filechk_defaultenv.h
1633 	(grep -v '^#' | \
1634 	 grep -v '^$$' | \
1635 	 tr '\n' '\0' | \
1636 	 sed -e 's/\\\x0/\n/' | \
1637 	 xxd -i ; echo ", 0x00" ; )
1638 endef
1639 
1640 $(version_h): include/config/uboot.release FORCE
1641 	$(call filechk,version.h)
1642 
1643 $(timestamp_h): $(srctree)/Makefile FORCE
1644 	$(call filechk,timestamp.h)
1645 
1646 $(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
1647 	$(call filechk,defaultenv.h)
1648 
1649 # ---------------------------------------------------------------------------
1650 quiet_cmd_cpp_lds = LDS     $@
1651 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1652 		-D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
1653 
1654 u-boot.lds: $(LDSCRIPT) prepare FORCE
1655 	$(call if_changed_dep,cpp_lds)
1656 
1657 spl/u-boot-spl.bin: spl/u-boot-spl
1658 	@:
1659 spl/u-boot-spl: tools prepare \
1660 		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
1661 		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
1662 	$(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1663 
1664 spl/sunxi-spl.bin: spl/u-boot-spl
1665 	@:
1666 
1667 spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1668 	@:
1669 
1670 spl/u-boot-spl.sfp: spl/u-boot-spl
1671 	@:
1672 
1673 spl/boot.bin: spl/u-boot-spl
1674 	@:
1675 
1676 tpl/u-boot-tpl.bin: tools prepare \
1677 		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1678 	$(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1679 
1680 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1681 
1682 FIND := find
1683 FINDFLAGS := -L
1684 
1685 tags ctags:
1686 		ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1687 						-name '*.[chS]' -print`
1688 		ln -s ctags tags
1689 
1690 etags:
1691 		etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1692 						-name '*.[chS]' -print`
1693 cscope:
1694 		$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1695 						cscope.files
1696 		cscope -b -q -k
1697 
1698 SYSTEM_MAP = \
1699 		$(NM) $1 | \
1700 		grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1701 		LC_ALL=C sort
1702 System.map:	u-boot
1703 		@$(call SYSTEM_MAP,$<) > $@
1704 
1705 #########################################################################
1706 
1707 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1708 # R_AARCH64_RELATIVE (64-bit).
1709 checkarmreloc: u-boot
1710 	@RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1711 		grep R_A | sort -u`"; \
1712 	if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1713 		 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1714 		echo "$< contains unexpected relocations: $$RELOC"; \
1715 		false; \
1716 	fi
1717 
1718 envtools: scripts_basic $(version_h) $(timestamp_h)
1719 	$(Q)$(MAKE) $(build)=tools/env
1720 
1721 tools-only: scripts_basic $(version_h) $(timestamp_h)
1722 	$(Q)$(MAKE) $(build)=tools
1723 
1724 tools-all: export HOST_TOOLS_ALL=y
1725 tools-all: envtools tools ;
1726 
1727 cross_tools: export CROSS_BUILD_TOOLS=y
1728 cross_tools: tools ;
1729 
1730 .PHONY : CHANGELOG
1731 CHANGELOG:
1732 	git log --no-merges U-Boot-1_1_5.. | \
1733 	unexpand -a | sed -e 's/\s\s*$$//' > $@
1734 
1735 #########################################################################
1736 
1737 ###
1738 # Cleaning is done on three levels.
1739 # make clean     Delete most generated files
1740 #                Leave enough to build external modules
1741 # make mrproper  Delete the current configuration, and all generated files
1742 # make distclean Remove editor backup files, patch leftover files and the like
1743 
1744 # Directories & files removed with 'make clean'
1745 CLEAN_DIRS  += $(MODVERDIR) \
1746 	       $(foreach d, spl tpl, $(patsubst %,$d/%, \
1747 			$(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1748 
1749 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
1750 	       boot* u-boot* MLO* SPL System.map fit-dtb.blob
1751 
1752 # Directories & files removed with 'make mrproper'
1753 MRPROPER_DIRS  += include/config include/generated spl tpl \
1754 		  .tmp_objdiff
1755 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1756 		  ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
1757 		  drivers/video/fonts/*.S
1758 
1759 # clean - Delete most, but leave enough to build external modules
1760 #
1761 clean: rm-dirs  := $(CLEAN_DIRS)
1762 clean: rm-files := $(CLEAN_FILES)
1763 
1764 clean-dirs	:= $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1765 
1766 clean-dirs      := $(addprefix _clean_, $(clean-dirs))
1767 
1768 PHONY += $(clean-dirs) clean archclean
1769 $(clean-dirs):
1770 	$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1771 
1772 clean: $(clean-dirs)
1773 	$(call cmd,rmdirs)
1774 	$(call cmd,rmfiles)
1775 	@find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1776 		\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1777 		-o -name '*.ko.*' -o -name '*.su' \
1778 		-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1779 		-o -name '*.lex.c' -o -name '*.tab.[ch]' \
1780 		-o -name '*.symtypes' -o -name 'modules.order' \
1781 		-o -name modules.builtin -o -name '.tmp_*.o.*' \
1782 		-o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
1783 		-o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
1784 		-type f -print | xargs rm -f
1785 
1786 # mrproper - Delete all generated files, including .config
1787 #
1788 mrproper: rm-dirs  := $(wildcard $(MRPROPER_DIRS))
1789 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1790 mrproper-dirs      := $(addprefix _mrproper_,scripts)
1791 
1792 PHONY += $(mrproper-dirs) mrproper archmrproper
1793 $(mrproper-dirs):
1794 	$(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1795 
1796 mrproper: clean $(mrproper-dirs)
1797 	$(call cmd,rmdirs)
1798 	$(call cmd,rmfiles)
1799 	@rm -f arch/*/include/asm/arch
1800 
1801 # distclean
1802 #
1803 PHONY += distclean
1804 
1805 distclean: mrproper
1806 	@find $(srctree) $(RCS_FIND_IGNORE) \
1807 		\( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1808 		-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1809 		-o -name '.*.rej' -o -name '*%' -o -name 'core' \
1810 		-o -name '*.pyc' \) \
1811 		-type f -print | xargs rm -f
1812 	@rm -f boards.cfg CHANGELOG
1813 
1814 backup:
1815 	F=`basename $(srctree)` ; cd .. ; \
1816 	gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1817 
1818 help:
1819 	@echo  'Cleaning targets:'
1820 	@echo  '  clean		  - Remove most generated files but keep the config'
1821 	@echo  '  mrproper	  - Remove all generated files + config + various backup files'
1822 	@echo  '  distclean	  - mrproper + remove editor backup and patch files'
1823 	@echo  ''
1824 	@echo  'Configuration targets:'
1825 	@$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1826 	@echo  ''
1827 	@echo  'Test targets:'
1828 	@echo  ''
1829 	@echo  '  check           - Run all automated tests that use sandbox'
1830 	@echo  '  qcheck          - Run quick automated tests that use sandbox'
1831 	@echo  ''
1832 	@echo  'Other generic targets:'
1833 	@echo  '  all		  - Build all necessary images depending on configuration'
1834 	@echo  '  tests		  - Build U-Boot for sandbox and run tests'
1835 	@echo  '* u-boot	  - Build the bare u-boot'
1836 	@echo  '  dir/            - Build all files in dir and below'
1837 	@echo  '  dir/file.[oisS] - Build specified target only'
1838 	@echo  '  dir/file.lst    - Build specified mixed source/assembly target only'
1839 	@echo  '                    (requires a recent binutils and recent build (System.map))'
1840 	@echo  '  tags/ctags	  - Generate ctags file for editors'
1841 	@echo  '  etags		  - Generate etags file for editors'
1842 	@echo  '  cscope	  - Generate cscope index'
1843 	@echo  '  ubootrelease	  - Output the release version string (use with make -s)'
1844 	@echo  '  ubootversion	  - Output the version stored in Makefile (use with make -s)'
1845 	@echo  "  cfg		  - Don't build, just create the .cfg files"
1846 	@echo  "  envtools	  - Build only the target-side environment tools"
1847 	@echo  ''
1848 	@echo  'Static analysers'
1849 	@echo  '  checkstack      - Generate a list of stack hogs'
1850 	@echo  '  coccicheck      - Execute static code analysis with Coccinelle'
1851 	@echo  ''
1852 	@echo  'Documentation targets:'
1853 	@$(MAKE) -f $(srctree)/Documentation/Makefile dochelp
1854 	@echo  ''
1855 	@echo  '  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1856 	@echo  '  make V=2   [targets] 2 => give reason for rebuild of target'
1857 	@echo  '  make O=dir [targets] Locate all output files in "dir", including .config'
1858 	@echo  '  make C=1   [targets] Check all c source with $$CHECK (sparse by default)'
1859 	@echo  '  make C=2   [targets] Force check of all c source with $$CHECK'
1860 	@echo  '  make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1861 	@echo  '  make W=n   [targets] Enable extra gcc checks, n=1,2,3 where'
1862 	@echo  '		1: warnings which may be relevant and do not occur too often'
1863 	@echo  '		2: warnings which occur quite often but may still be relevant'
1864 	@echo  '		3: more obscure warnings, can most likely be ignored'
1865 	@echo  '		Multiple levels can be combined with W=12 or W=123'
1866 	@echo  ''
1867 	@echo  'Execute "make" or "make all" to build all targets marked with [*] '
1868 	@echo  'For further info see the ./README file'
1869 
1870 tests check:
1871 	$(srctree)/test/run
1872 
1873 qcheck:
1874 	$(srctree)/test/run quick
1875 
1876 # Documentation targets
1877 # ---------------------------------------------------------------------------
1878 DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
1879 	       linkcheckdocs dochelp refcheckdocs
1880 PHONY += $(DOC_TARGETS)
1881 $(DOC_TARGETS): scripts_basic FORCE
1882 	$(Q)$(MAKE) $(build)=Documentation $@
1883 
1884 endif #ifeq ($(config-targets),1)
1885 endif #ifeq ($(mixed-targets),1)
1886 
1887 PHONY += checkstack ubootrelease ubootversion
1888 
1889 checkstack:
1890 	$(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1891 	$(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1892 
1893 ubootrelease:
1894 	@echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1895 
1896 ubootversion:
1897 	@echo $(UBOOTVERSION)
1898 
1899 # Single targets
1900 # ---------------------------------------------------------------------------
1901 # Single targets are compatible with:
1902 # - build with mixed source and output
1903 # - build with separate output dir 'make O=...'
1904 # - external modules
1905 #
1906 #  target-dir => where to store outputfile
1907 #  build-dir  => directory in kernel source tree to use
1908 
1909 ifeq ($(KBUILD_EXTMOD),)
1910         build-dir  = $(patsubst %/,%,$(dir $@))
1911         target-dir = $(dir $@)
1912 else
1913         zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1914         build-dir  = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1915         target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1916 endif
1917 
1918 %.s: %.c prepare scripts FORCE
1919 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1920 %.i: %.c prepare scripts FORCE
1921 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1922 %.o: %.c prepare scripts FORCE
1923 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1924 %.lst: %.c prepare scripts FORCE
1925 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1926 %.s: %.S prepare scripts FORCE
1927 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1928 %.o: %.S prepare scripts FORCE
1929 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1930 %.symtypes: %.c prepare scripts FORCE
1931 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1932 
1933 # Modules
1934 /: prepare scripts FORCE
1935 	$(cmd_crmodverdir)
1936 	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1937 	$(build)=$(build-dir)
1938 %/: prepare scripts FORCE
1939 	$(cmd_crmodverdir)
1940 	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1941 	$(build)=$(build-dir)
1942 %.ko: prepare scripts FORCE
1943 	$(cmd_crmodverdir)
1944 	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1)   \
1945 	$(build)=$(build-dir) $(@:.ko=.o)
1946 	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1947 
1948 # Consistency checks
1949 # ---------------------------------------------------------------------------
1950 
1951 PHONY += coccicheck
1952 
1953 coccicheck:
1954 	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
1955 
1956 # FIXME Should go into a make.lib or something
1957 # ===========================================================================
1958 
1959 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN   $(wildcard $(rm-dirs)))
1960       cmd_rmdirs = rm -rf $(rm-dirs)
1961 
1962 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(rm-files)))
1963       cmd_rmfiles = rm -f $(rm-files)
1964 
1965 # read all saved command lines
1966 
1967 targets := $(wildcard $(sort $(targets)))
1968 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1969 
1970 ifneq ($(cmd_files),)
1971   $(cmd_files): ;	# Do not try to update included dependency files
1972   include $(cmd_files)
1973 endif
1974 
1975 endif	# skip-makefile
1976 
1977 PHONY += FORCE
1978 FORCE:
1979 
1980 # Declare the contents of the .PHONY variable as phony.  We keep that
1981 # information in a variable so we can use it in if_changed and friends.
1982 .PHONY: $(PHONY)
1983