xref: /openbmc/u-boot/Makefile (revision d330e04d9d427a26381b59f40875af17f4c288a2)
1 #
2 # SPDX-License-Identifier:	GPL-2.0+
3 #
4 
5 VERSION = 2017
6 PATCHLEVEL = 09
7 SUBLEVEL =
8 EXTRAVERSION =
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		?= 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 ($(BUILD_ROM),)
800 ALL-$(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 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
815 
816 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
817 LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
818 
819 ifneq ($(CONFIG_SYS_TEXT_BASE),)
820 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
821 endif
822 
823 # Normally we fill empty space with 0xff
824 quiet_cmd_objcopy = OBJCOPY $@
825 cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
826 	$(OBJCOPYFLAGS_$(@F)) $< $@
827 
828 # Provide a version which does not do this, for use by EFI
829 quiet_cmd_zobjcopy = OBJCOPY $@
830 cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
831 
832 quiet_cmd_efipayload = OBJCOPY $@
833 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
834 
835 MKIMAGEOUTPUT ?= /dev/null
836 
837 quiet_cmd_mkimage = MKIMAGE $@
838 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
839 	$(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT))
840 
841 quiet_cmd_mkfitimage = MKIMAGE $@
842 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -E $@ \
843 	$(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT))
844 
845 quiet_cmd_cat = CAT     $@
846 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
847 
848 append = cat $(filter-out $< $(PHONY), $^) >> $@
849 
850 quiet_cmd_pad_cat = CAT     $@
851 cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
852 
853 cfg: u-boot.cfg
854 
855 quiet_cmd_cfgcheck = CFGCHK  $2
856 cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
857 		$(srctree)/scripts/config_whitelist.txt $(srctree)
858 
859 all:		$(ALL-y) cfg
860 ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y)
861 	@echo "===================== WARNING ======================"
862 	@echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
863 	@echo "(possibly in a subsequent patch in your series)"
864 	@echo "before sending patches to the mailing list."
865 	@echo "===================================================="
866 endif
867 	@# Check that this build does not use CONFIG options that we do not
868 	@# know about unless they are in Kconfig. All the existing CONFIG
869 	@# options are whitelisted, so new ones should not be added.
870 	$(call cmd,cfgcheck,u-boot.cfg)
871 
872 PHONY += dtbs
873 dtbs: dts/dt.dtb
874 	@:
875 dts/dt.dtb: checkdtc u-boot
876 	$(Q)$(MAKE) $(build)=dts dtbs
877 
878 quiet_cmd_copy = COPY    $@
879       cmd_copy = cp $< $@
880 
881 ifeq ($(CONFIG_FIT_EMBED),y)
882 
883 fit-dtb.blob: dts/dt.dtb FORCE
884 	$(call if_changed,mkimage)
885 
886 MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
887 	-a 0 -e 0 -E \
888 	$(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
889 
890 u-boot-fit-dtb.bin: u-boot-nodtb.bin fit-dtb.blob
891 	$(call if_changed,cat)
892 
893 u-boot.bin: u-boot-fit-dtb.bin FORCE
894 	$(call if_changed,copy)
895 else ifeq ($(CONFIG_OF_SEPARATE),y)
896 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
897 	$(call if_changed,cat)
898 
899 u-boot.bin: u-boot-dtb.bin FORCE
900 	$(call if_changed,copy)
901 else
902 u-boot.bin: u-boot-nodtb.bin FORCE
903 	$(call if_changed,copy)
904 endif
905 
906 %.imx: %.bin
907 	$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
908 
909 %.vyb: %.imx
910 	$(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
911 
912 quiet_cmd_copy = COPY    $@
913       cmd_copy = cp $< $@
914 
915 u-boot.dtb: dts/dt.dtb
916 	$(call cmd,copy)
917 
918 OBJCOPYFLAGS_u-boot.hex := -O ihex
919 
920 OBJCOPYFLAGS_u-boot.srec := -O srec
921 
922 u-boot.hex u-boot.srec: u-boot FORCE
923 	$(call if_changed,objcopy)
924 
925 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
926 		$(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec)
927 
928 binary_size_check: u-boot-nodtb.bin FORCE
929 	@file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
930 	map_size=$(shell cat u-boot.map | \
931 		awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
932 		| sed 's/0X//g' \
933 		| bc); \
934 	if [ "" != "$$map_size" ]; then \
935 		if test $$map_size -ne $$file_size; then \
936 			echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
937 			echo "  but u-boot-nodtb.bin shows $$file_size" >&2 ; \
938 			exit 1; \
939 		fi \
940 	fi
941 
942 u-boot-nodtb.bin: u-boot FORCE
943 	$(call if_changed,objcopy)
944 	$(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
945 	$(BOARD_SIZE_CHECK)
946 
947 u-boot.ldr:	u-boot
948 		$(CREATE_LDR_ENV)
949 		$(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
950 		$(BOARD_SIZE_CHECK)
951 
952 # binman
953 # ---------------------------------------------------------------------------
954 quiet_cmd_binman = BINMAN  $@
955 cmd_binman = $(srctree)/tools/binman/binman -d u-boot.dtb -O . \
956 		-I . -I $(srctree)/board/$(BOARDDIR) $<
957 
958 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
959 
960 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
961 
962 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
963 	$(call if_changed,objcopy)
964 
965 #
966 # U-Boot entry point, needed for booting of full-blown U-Boot
967 # from the SPL U-Boot version.
968 #
969 ifndef CONFIG_SYS_UBOOT_START
970 CONFIG_SYS_UBOOT_START := 0
971 endif
972 
973 # Create a file containing the configuration options the image was built with
974 quiet_cmd_cpp_cfg = CFG     $@
975 cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
976 	-DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
977 
978 # Boards with more complex image requirments can provide an .its source file
979 # or a generator script
980 ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
981 U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
982 else
983 ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
984 U_BOOT_ITS := u-boot.its
985 $(U_BOOT_ITS): FORCE
986 	$(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
987 	$(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
988 endif
989 endif
990 
991 ifdef CONFIG_SPL_LOAD_FIT
992 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
993 	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
994 	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
995 	$(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
996 else
997 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
998 	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
999 	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1000 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1001 	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1002 	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1003 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1004 CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
1005 endif
1006 
1007 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1008 
1009 MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1010 	-T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
1011 
1012 MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1013 	-T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1014 	$(if $(KEYDIR),-k $(KEYDIR))
1015 
1016 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1017 		-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1018 
1019 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1020 		$(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
1021 	$(call if_changed,mkimage)
1022 
1023 u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE
1024 	$(call if_changed,mkfitimage)
1025 
1026 u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
1027 	$(call if_changed,mkimage)
1028 
1029 u-boot.sha1:	u-boot.bin
1030 		tools/ubsha1 u-boot.bin
1031 
1032 u-boot.dis:	u-boot
1033 		$(OBJDUMP) -d $< > $@
1034 
1035 ifdef CONFIG_TPL
1036 SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
1037 else
1038 SPL_PAYLOAD := u-boot.bin
1039 endif
1040 
1041 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1042 				   --pad-to=$(CONFIG_SPL_PAD_TO)
1043 u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
1044 	$(call if_changed,pad_cat)
1045 
1046 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1047 
1048 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1049 	$(call if_changed,mkimage)
1050 
1051 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1052 
1053 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1054 	$(call if_changed,objcopy)
1055 
1056 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1057 
1058 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1059 	$(call if_changed,objcopy)
1060 
1061 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1062 	$(call if_changed,cat)
1063 
1064 CLEAN_FILES += lpc32xx-*
1065 
1066 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1067 				   --pad-to=$(CONFIG_TPL_PAD_TO)
1068 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1069 	$(call if_changed,pad_cat)
1070 
1071 SPL: spl/u-boot-spl.bin FORCE
1072 	$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1073 
1074 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
1075 	$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1076 
1077 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1078 
1079 u-boot.ubl: u-boot-with-spl.bin FORCE
1080 	$(call if_changed,mkimage)
1081 
1082 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1083 	$(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1084 	-T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1085 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1086 	$(call if_changed,mkimage)
1087 
1088 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1089 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1090 	$(call if_changed,pad_cat)
1091 
1092 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1093 	$(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1094 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1095 	$(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1096 
1097 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1098 # Both images are created using mkimage (crc etc), so that the ROM
1099 # bootloader can check its integrity. Padding needs to be done to the
1100 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1101 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1102 # The resulting image containing both U-Boot images is called u-boot.spr
1103 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1104 	-a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1105 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1106 	$(call if_changed,mkimage)
1107 
1108 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1109 			  --gap-fill=0xff
1110 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1111 	$(call if_changed,pad_cat)
1112 
1113 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1114 quiet_cmd_socboot = SOCBOOT $@
1115 cmd_socboot = cat	spl/u-boot-spl.sfp spl/u-boot-spl.sfp	\
1116 			spl/u-boot-spl.sfp spl/u-boot-spl.sfp	\
1117 			u-boot.img > $@ || rm -f $@
1118 u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1119 	$(call if_changed,socboot)
1120 endif
1121 
1122 # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1123 # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1124 # the middle. This is handled by binman based on an image description in the
1125 # board's device tree.
1126 ifneq ($(CONFIG_X86_RESET_VECTOR),)
1127 rom: u-boot.rom FORCE
1128 
1129 refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1130 	$(call if_changed,copy)
1131 
1132 quiet_cmd_ldr = LD      $@
1133 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1134 	       $(filter-out FORCE,$^) -o $@
1135 
1136 u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \
1137 		$(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1138 		$(if $(CONFIG_HAVE_REFCODE),refcode.bin) checkbinman FORCE
1139 	$(call if_changed,binman)
1140 
1141 OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
1142 u-boot-x86-16bit.bin: u-boot FORCE
1143 	$(call if_changed,objcopy)
1144 endif
1145 
1146 ifneq ($(CONFIG_ARCH_SUNXI),)
1147 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb \
1148 		checkbinman FORCE
1149 	$(call if_changed,binman)
1150 endif
1151 
1152 ifneq ($(CONFIG_TEGRA),)
1153 OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1154 u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1155 	$(call if_changed,pad_cat)
1156 
1157 OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1158 u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1159 	$(call if_changed,pad_cat)
1160 
1161 u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1162 	$(call if_changed,copy)
1163 endif
1164 
1165 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1166 u-boot-app.efi: u-boot FORCE
1167 	$(call if_changed,zobjcopy)
1168 
1169 u-boot.bin.o: u-boot.bin FORCE
1170 	$(call if_changed,efipayload)
1171 
1172 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1173 	$(call if_changed_dep,cpp_lds)
1174 
1175 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1176 quiet_cmd_u-boot_payload ?= LD      $@
1177       cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1178       -T u-boot-payload.lds arch/x86/cpu/call32.o \
1179       lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1180       $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1181 
1182 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1183 	$(call if_changed,u-boot_payload)
1184 
1185 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1186 u-boot-payload.efi: u-boot-payload FORCE
1187 	$(call if_changed,zobjcopy)
1188 
1189 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1190 	$(call if_changed,cat)
1191 
1192 #Add a target to create boot binary having SPL binary in PBI format
1193 #concatenated with u-boot binary. It is need by PowerPC SoC having
1194 #internal SRAM <= 512KB.
1195 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1196 		-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1197 		-A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1198 
1199 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1200 	$(call if_changed,mkimage)
1201 
1202 ifeq ($(ARCH),arm)
1203 UBOOT_BINLOAD := u-boot.img
1204 else
1205 UBOOT_BINLOAD := u-boot.bin
1206 endif
1207 
1208 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1209 			  --gap-fill=0xff
1210 
1211 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1212 	$(call if_changed,pad_cat)
1213 
1214 # PPC4xx needs the SPL at the end of the image, since the reset vector
1215 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1216 # and need to introduce a new build target with the full blown U-Boot
1217 # at the start padded up to the start of the SPL image. And then concat
1218 # the SPL image to the end.
1219 
1220 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1221 	--pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1222 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1223 	$(call if_changed,pad_cat)
1224 
1225 # Create a new ELF from a raw binary file.
1226 ifndef PLATFORM_ELFENTRY
1227   PLATFORM_ELFENTRY = "_start"
1228 endif
1229 quiet_cmd_u-boot-elf ?= LD      $@
1230 	cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1231 	--defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1232 	-Ttext=$(CONFIG_SYS_TEXT_BASE)
1233 u-boot.elf: u-boot.bin
1234 	$(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1235 	$(call if_changed,u-boot-elf)
1236 
1237 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1238 
1239 # Rule to link u-boot
1240 # May be overridden by arch/$(ARCH)/config.mk
1241 quiet_cmd_u-boot__ ?= LD      $@
1242       cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1243       -T u-boot.lds $(u-boot-init)                             \
1244       --start-group $(u-boot-main) --end-group                 \
1245       $(PLATFORM_LIBS) -Map u-boot.map;                        \
1246       $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1247 
1248 quiet_cmd_smap = GEN     common/system_map.o
1249 cmd_smap = \
1250 	smap=`$(call SYSTEM_MAP,u-boot) | \
1251 		awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1252 	$(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1253 		-c $(srctree)/common/system_map.c -o common/system_map.o
1254 
1255 u-boot:	$(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1256 	+$(call if_changed,u-boot__)
1257 ifeq ($(CONFIG_KALLSYMS),y)
1258 	$(call cmd,smap)
1259 	$(call cmd,u-boot__) common/system_map.o
1260 endif
1261 
1262 quiet_cmd_sym ?= SYM     $@
1263       cmd_sym ?= $(OBJDUMP) -t $< > $@
1264 u-boot.sym: u-boot FORCE
1265 	$(call if_changed,sym)
1266 
1267 # The actual objects are generated when descending,
1268 # make sure no implicit rule kicks in
1269 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1270 
1271 # Handle descending into subdirectories listed in $(vmlinux-dirs)
1272 # Preset locale variables to speed up the build process. Limit locale
1273 # tweaks to this spot to avoid wrong language settings when running
1274 # make menuconfig etc.
1275 # Error messages still appears in the original language
1276 
1277 PHONY += $(u-boot-dirs)
1278 $(u-boot-dirs): prepare scripts
1279 	$(Q)$(MAKE) $(build)=$@
1280 
1281 tools: prepare
1282 # The "tools" are needed early
1283 $(filter-out tools, $(u-boot-dirs)): tools
1284 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1285 # is "yes"), so compile examples after U-Boot is compiled.
1286 examples: $(filter-out examples, $(u-boot-dirs))
1287 
1288 define filechk_uboot.release
1289 	echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1290 endef
1291 
1292 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1293 include/config/uboot.release: include/config/auto.conf FORCE
1294 	$(call filechk,uboot.release)
1295 
1296 
1297 # Things we need to do before we recursively start building the kernel
1298 # or the modules are listed in "prepare".
1299 # A multi level approach is used. prepareN is processed before prepareN-1.
1300 # archprepare is used in arch Makefiles and when processed asm symlink,
1301 # version.h and scripts_basic is processed / created.
1302 
1303 # Listed in dependency order
1304 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1305 
1306 # prepare3 is used to check if we are building in a separate output directory,
1307 # and if so do:
1308 # 1) Check that make has not been executed in the kernel src $(srctree)
1309 prepare3: include/config/uboot.release
1310 ifneq ($(KBUILD_SRC),)
1311 	@$(kecho) '  Using $(srctree) as source for U-Boot'
1312 	$(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1313 		echo >&2 "  $(srctree) is not clean, please run 'make mrproper'"; \
1314 		echo >&2 "  in the '$(srctree)' directory.";\
1315 		/bin/false; \
1316 	fi;
1317 endif
1318 
1319 # prepare2 creates a makefile if using a separate output directory
1320 prepare2: prepare3 outputmakefile
1321 
1322 prepare1: prepare2 $(version_h) $(timestamp_h) \
1323                    include/config/auto.conf
1324 ifeq ($(wildcard $(LDSCRIPT)),)
1325 	@echo >&2 "  Could not find linker script."
1326 	@/bin/false
1327 endif
1328 
1329 archprepare: prepare1 scripts_basic
1330 
1331 prepare0: archprepare FORCE
1332 	$(Q)$(MAKE) $(build)=.
1333 
1334 # All the preparing..
1335 prepare: prepare0
1336 
1337 # Generate some files
1338 # ---------------------------------------------------------------------------
1339 
1340 define filechk_version.h
1341 	(echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1342 	echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1343 	echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1344 	echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1345 endef
1346 
1347 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1348 # The BSD date on the other hand behaves different and would produce errors
1349 # with the misused '-d' switch.  Respect that and search a working date with
1350 # well known pre- and suffixes for the GNU variant of date.
1351 define filechk_timestamp.h
1352 	(if test -n "$${SOURCE_DATE_EPOCH}"; then \
1353 		SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1354 		DATE=""; \
1355 		for date in gdate date.gnu date; do \
1356 			$${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1357 		done; \
1358 		if test -n "$${DATE}"; then \
1359 			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1360 			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1361 			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1362 			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1363 			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1364 		else \
1365 			return 42; \
1366 		fi; \
1367 	else \
1368 		LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1369 		LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1370 		LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1371 		LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1372 		LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1373 	fi)
1374 endef
1375 
1376 $(version_h): include/config/uboot.release FORCE
1377 	$(call filechk,version.h)
1378 
1379 $(timestamp_h): $(srctree)/Makefile FORCE
1380 	$(call filechk,timestamp.h)
1381 
1382 checkbinman: tools
1383 	@if ! ( echo 'import libfdt' | ( PYTHONPATH=tools $(PYTHON) )); then \
1384 		echo >&2; \
1385 		echo >&2 '*** binman needs the Python libfdt library.'; \
1386 		echo >&2 '*** Either install it on your system, or try:'; \
1387 		echo >&2 '***'; \
1388 		echo >&2 '*** sudo apt-get install swig libpython-dev'; \
1389 		echo >&2 '***'; \
1390 		echo >&2 '*** to have U-Boot build its own version.'; \
1391 		false; \
1392 	fi
1393 
1394 # ---------------------------------------------------------------------------
1395 quiet_cmd_cpp_lds = LDS     $@
1396 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1397 		-D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
1398 
1399 u-boot.lds: $(LDSCRIPT) prepare FORCE
1400 	$(call if_changed_dep,cpp_lds)
1401 
1402 spl/u-boot-spl.bin: spl/u-boot-spl
1403 	@:
1404 spl/u-boot-spl: tools prepare \
1405 		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
1406 		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
1407 	$(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1408 
1409 spl/sunxi-spl.bin: spl/u-boot-spl
1410 	@:
1411 
1412 spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1413 	@:
1414 
1415 spl/u-boot-spl.sfp: spl/u-boot-spl
1416 	@:
1417 
1418 spl/boot.bin: spl/u-boot-spl
1419 	@:
1420 
1421 tpl/u-boot-tpl.bin: tools prepare \
1422 		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1423 	$(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1424 
1425 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1426 
1427 FIND := find
1428 FINDFLAGS := -L
1429 
1430 tags ctags:
1431 		ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1432 						-name '*.[chS]' -print`
1433 		ln -s ctags tags
1434 
1435 etags:
1436 		etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1437 						-name '*.[chS]' -print`
1438 cscope:
1439 		$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1440 						cscope.files
1441 		cscope -b -q -k
1442 
1443 SYSTEM_MAP = \
1444 		$(NM) $1 | \
1445 		grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1446 		LC_ALL=C sort
1447 System.map:	u-boot
1448 		@$(call SYSTEM_MAP,$<) > $@
1449 
1450 checkdtc:
1451 	@if test $(call dtc-version) -lt 0104; then \
1452 		echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \
1453 		false; \
1454 	fi
1455 
1456 #########################################################################
1457 
1458 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1459 # R_AARCH64_RELATIVE (64-bit).
1460 checkarmreloc: u-boot
1461 	@RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1462 		grep R_A | sort -u`"; \
1463 	if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1464 		 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1465 		echo "$< contains unexpected relocations: $$RELOC"; \
1466 		false; \
1467 	fi
1468 
1469 envtools: scripts_basic
1470 	$(Q)$(MAKE) $(build)=tools/env
1471 
1472 tools-only: scripts_basic $(version_h) $(timestamp_h)
1473 	$(Q)$(MAKE) $(build)=tools
1474 
1475 tools-all: export HOST_TOOLS_ALL=y
1476 tools-all: envtools tools ;
1477 
1478 cross_tools: export CROSS_BUILD_TOOLS=y
1479 cross_tools: tools ;
1480 
1481 .PHONY : CHANGELOG
1482 CHANGELOG:
1483 	git log --no-merges U-Boot-1_1_5.. | \
1484 	unexpand -a | sed -e 's/\s\s*$$//' > $@
1485 
1486 #########################################################################
1487 
1488 ###
1489 # Cleaning is done on three levels.
1490 # make clean     Delete most generated files
1491 #                Leave enough to build external modules
1492 # make mrproper  Delete the current configuration, and all generated files
1493 # make distclean Remove editor backup files, patch leftover files and the like
1494 
1495 # Directories & files removed with 'make clean'
1496 CLEAN_DIRS  += $(MODVERDIR) \
1497 	       $(foreach d, spl tpl, $(patsubst %,$d/%, \
1498 			$(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1499 
1500 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
1501 	       boot* u-boot* MLO* SPL System.map fit-dtb.blob
1502 
1503 # Directories & files removed with 'make mrproper'
1504 MRPROPER_DIRS  += include/config include/generated spl tpl \
1505 		  .tmp_objdiff
1506 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1507 		  ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
1508 
1509 # clean - Delete most, but leave enough to build external modules
1510 #
1511 clean: rm-dirs  := $(CLEAN_DIRS)
1512 clean: rm-files := $(CLEAN_FILES)
1513 
1514 clean-dirs	:= $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1515 
1516 clean-dirs      := $(addprefix _clean_, $(clean-dirs) doc/DocBook)
1517 
1518 PHONY += $(clean-dirs) clean archclean
1519 $(clean-dirs):
1520 	$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1521 
1522 # TODO: Do not use *.cfgtmp
1523 clean: $(clean-dirs)
1524 	$(call cmd,rmdirs)
1525 	$(call cmd,rmfiles)
1526 	@find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1527 		\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1528 		-o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \
1529 		-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1530 		-o -name '*.symtypes' -o -name 'modules.order' \
1531 		-o -name modules.builtin -o -name '.tmp_*.o.*' \
1532 		-o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
1533 		-o -name '*.gcno' \) -type f -print | xargs rm -f
1534 
1535 # mrproper - Delete all generated files, including .config
1536 #
1537 mrproper: rm-dirs  := $(wildcard $(MRPROPER_DIRS))
1538 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1539 mrproper-dirs      := $(addprefix _mrproper_,scripts)
1540 
1541 PHONY += $(mrproper-dirs) mrproper archmrproper
1542 $(mrproper-dirs):
1543 	$(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1544 
1545 mrproper: clean $(mrproper-dirs)
1546 	$(call cmd,rmdirs)
1547 	$(call cmd,rmfiles)
1548 	@rm -f arch/*/include/asm/arch
1549 
1550 # distclean
1551 #
1552 PHONY += distclean
1553 
1554 distclean: mrproper
1555 	@find $(srctree) $(RCS_FIND_IGNORE) \
1556 		\( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1557 		-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1558 		-o -name '.*.rej' -o -name '*%' -o -name 'core' \
1559 		-o -name '*.pyc' \) \
1560 		-type f -print | xargs rm -f
1561 	@rm -f boards.cfg
1562 
1563 backup:
1564 	F=`basename $(srctree)` ; cd .. ; \
1565 	gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1566 
1567 help:
1568 	@echo  'Cleaning targets:'
1569 	@echo  '  clean		  - Remove most generated files but keep the config'
1570 	@echo  '  mrproper	  - Remove all generated files + config + various backup files'
1571 	@echo  '  distclean	  - mrproper + remove editor backup and patch files'
1572 	@echo  ''
1573 	@echo  'Configuration targets:'
1574 	@$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1575 	@echo  ''
1576 	@echo  'Other generic targets:'
1577 	@echo  '  all		  - Build all necessary images depending on configuration'
1578 	@echo  '  tests		  - Build U-Boot for sandbox and run tests'
1579 	@echo  '* u-boot	  - Build the bare u-boot'
1580 	@echo  '  dir/            - Build all files in dir and below'
1581 	@echo  '  dir/file.[oisS] - Build specified target only'
1582 	@echo  '  dir/file.lst    - Build specified mixed source/assembly target only'
1583 	@echo  '                    (requires a recent binutils and recent build (System.map))'
1584 	@echo  '  tags/ctags	  - Generate ctags file for editors'
1585 	@echo  '  etags		  - Generate etags file for editors'
1586 	@echo  '  cscope	  - Generate cscope index'
1587 	@echo  '  ubootrelease	  - Output the release version string (use with make -s)'
1588 	@echo  '  ubootversion	  - Output the version stored in Makefile (use with make -s)'
1589 	@echo  "  cfg		  - Don't build, just create the .cfg files"
1590 	@echo  "  envtools	  - Build only the target-side environment tools"
1591 	@echo  ''
1592 	@echo  'Static analysers'
1593 	@echo  '  checkstack      - Generate a list of stack hogs'
1594 	@echo  ''
1595 	@echo  'Documentation targets:'
1596 	@$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp
1597 	@echo  ''
1598 	@echo  '  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1599 	@echo  '  make V=2   [targets] 2 => give reason for rebuild of target'
1600 	@echo  '  make O=dir [targets] Locate all output files in "dir", including .config'
1601 	@echo  '  make C=1   [targets] Check all c source with $$CHECK (sparse by default)'
1602 	@echo  '  make C=2   [targets] Force check of all c source with $$CHECK'
1603 	@echo  '  make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1604 	@echo  '  make W=n   [targets] Enable extra gcc checks, n=1,2,3 where'
1605 	@echo  '		1: warnings which may be relevant and do not occur too often'
1606 	@echo  '		2: warnings which occur quite often but may still be relevant'
1607 	@echo  '		3: more obscure warnings, can most likely be ignored'
1608 	@echo  '		Multiple levels can be combined with W=12 or W=123'
1609 	@echo  ''
1610 	@echo  'Execute "make" or "make all" to build all targets marked with [*] '
1611 	@echo  'For further info see the ./README file'
1612 
1613 tests:
1614 	$(srctree)/test/run
1615 
1616 # Documentation targets
1617 # ---------------------------------------------------------------------------
1618 %docs: scripts_basic FORCE
1619 	$(Q)$(MAKE) $(build)=scripts build_docproc
1620 	$(Q)$(MAKE) $(build)=doc/DocBook $@
1621 
1622 endif #ifeq ($(config-targets),1)
1623 endif #ifeq ($(mixed-targets),1)
1624 
1625 PHONY += checkstack ubootrelease ubootversion
1626 
1627 checkstack:
1628 	$(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1629 	$(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1630 
1631 ubootrelease:
1632 	@echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1633 
1634 ubootversion:
1635 	@echo $(UBOOTVERSION)
1636 
1637 # Single targets
1638 # ---------------------------------------------------------------------------
1639 # Single targets are compatible with:
1640 # - build with mixed source and output
1641 # - build with separate output dir 'make O=...'
1642 # - external modules
1643 #
1644 #  target-dir => where to store outputfile
1645 #  build-dir  => directory in kernel source tree to use
1646 
1647 ifeq ($(KBUILD_EXTMOD),)
1648         build-dir  = $(patsubst %/,%,$(dir $@))
1649         target-dir = $(dir $@)
1650 else
1651         zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1652         build-dir  = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1653         target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1654 endif
1655 
1656 %.s: %.c prepare scripts FORCE
1657 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1658 %.i: %.c prepare scripts FORCE
1659 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1660 %.o: %.c prepare scripts FORCE
1661 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1662 %.lst: %.c prepare scripts FORCE
1663 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1664 %.s: %.S prepare scripts FORCE
1665 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1666 %.o: %.S prepare scripts FORCE
1667 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1668 %.symtypes: %.c prepare scripts FORCE
1669 	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1670 
1671 # Modules
1672 /: prepare scripts FORCE
1673 	$(cmd_crmodverdir)
1674 	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1675 	$(build)=$(build-dir)
1676 %/: prepare scripts FORCE
1677 	$(cmd_crmodverdir)
1678 	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1679 	$(build)=$(build-dir)
1680 %.ko: prepare scripts FORCE
1681 	$(cmd_crmodverdir)
1682 	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1)   \
1683 	$(build)=$(build-dir) $(@:.ko=.o)
1684 	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1685 
1686 # FIXME Should go into a make.lib or something
1687 # ===========================================================================
1688 
1689 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN   $(wildcard $(rm-dirs)))
1690       cmd_rmdirs = rm -rf $(rm-dirs)
1691 
1692 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(rm-files)))
1693       cmd_rmfiles = rm -f $(rm-files)
1694 
1695 # read all saved command lines
1696 
1697 targets := $(wildcard $(sort $(targets)))
1698 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1699 
1700 ifneq ($(cmd_files),)
1701   $(cmd_files): ;	# Do not try to update included dependency files
1702   include $(cmd_files)
1703 endif
1704 
1705 endif	# skip-makefile
1706 
1707 PHONY += FORCE
1708 FORCE:
1709 
1710 # Declare the contents of the .PHONY variable as phony.  We keep that
1711 # information in a variable so we can use it in if_changed and friends.
1712 .PHONY: $(PHONY)
1713