path: root/Makefile (plain)
blob: e9967fff8b3ac8ae6f4c8c127db3596714d28e0e

1	VERSION = 2015
2	PATCHLEVEL = 01
3	SUBLEVEL =
4	EXTRAVERSION =
5	NAME =
6
7	# *DOCUMENTATION*
8	# To see a list of typical targets execute "make help"
9	# More info can be located in ./README
10	# Comments in this file are targeted only to the developer, do not
11	# expect to learn how to build the kernel reading this file.
12
13	# Do not use make's built-in rules and variables
14	# (this increases performance and avoids hard-to-debug behaviour);
15	MAKEFLAGS += -rR --no-print-directory
16
17	# Avoid funny character set dependencies
18	unexport LC_ALL
19	LC_COLLATE=C
20	LC_NUMERIC=C
21	export LC_COLLATE LC_NUMERIC
22
23	# Avoid interference with shell env settings
24	unexport GREP_OPTIONS
25
26	# We are using a recursive build, so we need to do a little thinking
27	# to get the ordering right.
28	#
29	# Most importantly: sub-Makefiles should only ever modify files in
30	# their own directory. If in some directory we have a dependency on
31	# a file in another dir (which doesn't happen often, but it's often
32	# unavoidable when linking the built-in.o targets which finally
33	# turn into vmlinux), we will call a sub make in that other dir, and
34	# after that we are sure that everything which is in that other dir
35	# is now up to date.
36	#
37	# The only cases where we need to modify files which have global
38	# effects are thus separated out and done before the recursive
39	# descending is started. They are now explicitly listed as the
40	# prepare rule.
41
42	# Beautify output
43	# ---------------------------------------------------------------------------
44	#
45	# Normally, we echo the whole command before executing it. By making
46	# that echo $($(quiet)$(cmd)), we now have the possibility to set
47	# $(quiet) to choose other forms of output instead, e.g.
48	#
49	# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
50	# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
51	#
52	# If $(quiet) is empty, the whole command will be printed.
53	# If it is set to "quiet_", only the short version will be printed.
54	# If it is set to "silent_", nothing will be printed at all, since
55	# the variable $(silent_cmd_cc_o_c) doesn't exist.
56	#
57	# A simple variant is to prefix commands with $(Q) - that's useful
58	# for commands that shall be hidden in non-verbose mode.
59	#
60	# $(Q)ln $@ :<
61	#
62	# If KBUILD_VERBOSE equals 0 then the above command will be hidden.
63	# If KBUILD_VERBOSE equals 1 then the above command is displayed.
64	#
65	# To put more focus on warnings, be less verbose as default
66	# Use 'make V=1' to see the full commands
67
68	ifeq ("$(origin V)", "command line")
69	KBUILD_VERBOSE = $(V)
70	endif
71	ifndef KBUILD_VERBOSE
72	KBUILD_VERBOSE = 0
73	endif
74
75	ifeq ($(KBUILD_VERBOSE),1)
76	quiet =
77	Q =
78	else
79	quiet=quiet_
80	Q = @
81	endif
82
83	# If the user is running make -s (silent mode), suppress echoing of
84	# commands
85
86	ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4
87	ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
88	quiet=silent_
89	endif
90	else # make-3.8x
91	ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
92	quiet=silent_
93	endif
94	endif
95
96	export quiet Q KBUILD_VERBOSE
97
98	# kbuild supports saving output files in a separate directory.
99	# To locate output files in a separate directory two syntaxes are supported.
100	# In both cases the working directory must be the root of the kernel src.
101	# 1) O=
102	# Use "make O=dir/to/store/output/files/"
103	#
104	# 2) Set KBUILD_OUTPUT
105	# Set the environment variable KBUILD_OUTPUT to point to the directory
106	# where the output files shall be placed.
107	# export KBUILD_OUTPUT=dir/to/store/output/files/
108	# make
109	#
110	# The O= assignment takes precedence over the KBUILD_OUTPUT environment
111	# variable.
112
113	# KBUILD_SRC is set on invocation of make in OBJ directory
114	# KBUILD_SRC is not intended to be used by the regular user (for now)
115	ifeq ($(KBUILD_SRC),)
116
117	# OK, Make called in directory where kernel src resides
118	# Do we want to locate output files in a separate directory?
119	ifeq ("$(origin O)", "command line")
120	KBUILD_OUTPUT := $(O)
121	else
122	KBUILD_OUTPUT := build
123	endif
124
125	# That's our default target when none is given on the command line
126	PHONY := _all
127	_all:
128
129	# Cancel implicit rules on top Makefile
130	$(CURDIR)/Makefile Makefile: ;
131
132	ifneq ($(KBUILD_OUTPUT),)
133	# Invoke a second make in the output directory, passing relevant variables
134	# check that the output directory actually exists
135	saved-output := $(KBUILD_OUTPUT)
136	KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
137	&& /bin/pwd)
138	$(if $(KBUILD_OUTPUT),, \
139	$(error failed to create output directory "$(saved-output)"))
140
141	PHONY += $(MAKECMDGOALS) sub-make
142
143	$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
144	@:
145
146	sub-make: FORCE
147	$(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
148	-f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
149
150	# Leave processing to above invocation of make
151	skip-makefile := 1
152	endif # ifneq ($(KBUILD_OUTPUT),)
153	endif # ifeq ($(KBUILD_SRC),)
154
155	# We process the rest of the Makefile if this is the final invocation of make
156	ifeq ($(skip-makefile),)
157
158	# Do not print "Entering directory ...",
159	# but we want to display it when entering to the output directory
160	# so that IDEs/editors are able to understand relative filenames.
161	#MAKEFLAGS += --no-print-directory
162
163	# Call a source code checker (by default, "sparse") as part of the
164	# C compilation.
165	#
166	# Use 'make C=1' to enable checking of only re-compiled files.
167	# Use 'make C=2' to enable checking of *all* source files, regardless
168	# of whether they are re-compiled or not.
169	#
170	# See the file "Documentation/sparse.txt" for more details, including
171	# where to get the "sparse" utility.
172
173	ifeq ("$(origin C)", "command line")
174	KBUILD_CHECKSRC = $(C)
175	endif
176	ifndef KBUILD_CHECKSRC
177	KBUILD_CHECKSRC = 0
178	endif
179
180	# Use make M=dir to specify directory of external module to build
181	# Old syntax make ... SUBDIRS=$PWD is still supported
182	# Setting the environment variable KBUILD_EXTMOD take precedence
183	ifdef SUBDIRS
184	KBUILD_EXTMOD ?= $(SUBDIRS)
185	endif
186
187	ifeq ("$(origin M)", "command line")
188	KBUILD_EXTMOD := $(M)
189	endif
190
191	# If building an external module we do not care about the all: rule
192	# but instead _all depend on modules
193	PHONY += all
194	ifeq ($(KBUILD_EXTMOD),)
195	_all: all
196	else
197	_all: modules
198	endif
199
200	ifeq ($(KBUILD_SRC),)
201	# building in the source tree
202	srctree := .
203	else
204	ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
205	# building in a subdirectory of the source tree
206	srctree := ..
207	else
208	srctree := $(KBUILD_SRC)
209	endif
210	endif
211	objtree := .
212	src := $(srctree)
213	obj := $(objtree)
214
215	buildsrc := $(abspath $(srctree))
216	buildtree := $(abspath $(CURDIR)/$(KBUILD_OUTPUT))
217
218	VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
219
220	export srctree objtree VPATH KBUILD_OUTPUT buildtree buildsrc
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	CROSS_COMPILE ?= /opt/gcc-linaro-aarch64-none-elf-4.8-2013.11_linux/bin/aarch64-none-elf-
250	CROSS_COMPILE_T32 ?= /opt/gcc-arm-none-eabi-6-2017-q2-update/bin/arm-none-eabi-
251	export CROSS_COMPILE
252	export CROSS_COMPILE_T32
253
254	KCONFIG_CONFIG ?= .config
255	export KCONFIG_CONFIG
256
257	# SHELL used by kbuild
258	CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
259	else if [ -x /bin/bash ]; then echo /bin/bash; \
260	else echo sh; fi ; fi)
261
262	HOSTCC = cc
263	HOSTCXX = c++
264	HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
265	HOSTCXXFLAGS = -O2
266
267	ifeq ($(HOSTOS),cygwin)
268	HOSTCFLAGS += -ansi
269	endif
270
271	# Mac OS X / Darwin's C preprocessor is Apple specific. It
272	# generates numerous errors and warnings. We want to bypass it
273	# and use GNU C's cpp. To do this we pass the -traditional-cpp
274	# option to the compiler. Note that the -traditional-cpp flag
275	# DOES NOT have the same semantics as GNU C's flag, all it does
276	# is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
277	#
278	# Apple's linker is similar, thanks to the new 2 stage linking
279	# multiple symbol definitions are treated as errors, hence the
280	# -multiply_defined suppress option to turn off this error.
281	#
282	ifeq ($(HOSTOS),darwin)
283	# get major and minor product version (e.g. '10' and '6' for Snow Leopard)
284	DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.')
285	DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.')
286
287	os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
288	$(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
289
290	# Snow Leopards build environment has no longer restrictions as described above
291	HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc")
292	HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp")
293	HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
294	endif
295
296	# Decide whether to build built-in, modular, or both.
297	# Normally, just do built-in.
298
299	KBUILD_MODULES :=
300	KBUILD_BUILTIN := 1
301
302	# If we have only "make modules", don't compile built-in objects.
303	# When we're building modules with modversions, we need to consider
304	# the built-in objects during the descend as well, in order to
305	# make sure the checksums are up to date before we record them.
306
307	ifeq ($(MAKECMDGOALS),modules)
308	KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
309	endif
310
311	# If we have "make <whatever> modules", compile modules
312	# in addition to whatever we do anyway.
313	# Just "make" or "make all" shall build modules as well
314
315	# U-Boot does not need modules
316	#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
317	# KBUILD_MODULES := 1
318	#endif
319
320	#ifeq ($(MAKECMDGOALS),)
321	# KBUILD_MODULES := 1
322	#endif
323
324	export KBUILD_MODULES KBUILD_BUILTIN
325	export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
326
327	# Look for make include files relative to root of kernel src
328	MAKEFLAGS += --include-dir=$(srctree)
329
330	# We need some generic definitions (do not try to remake the file).
331	$(srctree)/scripts/Kbuild.include: ;
332	include $(srctree)/scripts/Kbuild.include
333
334	# Make variables (CC, etc...)
335
336	AS = $(CROSS_COMPILE)as
337	# Always use GNU ld
338	ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
339	LD = $(CROSS_COMPILE)ld.bfd
340	else
341	LD = $(CROSS_COMPILE)ld
342	endif
343	CC = $(CROSS_COMPILE)gcc
344	CPP = $(CC) -E
345	AR = $(CROSS_COMPILE)ar
346	NM = $(CROSS_COMPILE)nm
347	LDR = $(CROSS_COMPILE)ldr
348	STRIP = $(CROSS_COMPILE)strip
349	OBJCOPY = $(CROSS_COMPILE)objcopy
350	OBJDUMP = $(CROSS_COMPILE)objdump
351	AWK = awk
352	PERL = perl
353	PYTHON = python
354	DTC = dtc
355	CHECK = sparse
356
357	CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
358	-Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
359
360	KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
361
362	KBUILD_CFLAGS := -Wall -Wstrict-prototypes \
363	-Wno-format-security \
364	-fno-builtin -ffreestanding
365	KBUILD_AFLAGS := -D__ASSEMBLY__
366
367	# Read UBOOTRELEASE from include/config/uboot.release (if it exists)
368	UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
369	UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
370
371	export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
372	export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
373	export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
374	export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
375	export MAKE AWK PERL PYTHON
376	export HOSTCXX HOSTCXXFLAGS DTC CHECK CHECKFLAGS
377
378	export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
379	export KBUILD_CFLAGS KBUILD_AFLAGS
380
381	# When compiling out-of-tree modules, put MODVERDIR in the module
382	# tree rather than in the kernel tree. The kernel tree might
383	# even be read-only.
384	export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
385
386	# Files to ignore in find ... statements
387
388	export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \
389	-name CVS -o -name .pc -o -name .hg -o -name .git \) \
390	-prune -o
391	export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
392	--exclude CVS --exclude .pc --exclude .hg --exclude .git
393
394	# ===========================================================================
395	# Rules shared between *config targets and build targets
396
397	# Basic helpers built in scripts/
398	PHONY += scripts_basic
399	scripts_basic:
400	$(Q)$(MAKE) $(build)=scripts/basic
401	$(Q)rm -f .tmp_quiet_recordmcount
402
403	# To avoid any implicit rule to kick in, define an empty command.
404	scripts/basic/%: scripts_basic ;
405
406	PHONY += outputmakefile
407	# outputmakefile generates a Makefile in the output directory, if using a
408	# separate output directory. This allows convenient use of make in the
409	# output directory.
410	outputmakefile:
411	ifneq ($(KBUILD_SRC),)
412	$(Q)ln -fsn $(srctree) source
413	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
414	$(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
415	endif
416
417	# To make sure we do not include .config for any of the *config targets
418	# catch them early, and hand them over to scripts/kconfig/Makefile
419	# It is allowed to specify more targets when calling make, including
420	# mixing *config targets and build targets.
421	# For example 'make oldconfig all'.
422	# Detect when mixed targets is specified, and make a second invocation
423	# of make so .config is not included in this case either (for *config).
424
425	version_h := include/generated/version_autogenerated.h
426	timestamp_h := include/generated/timestamp_autogenerated.h
427
428	no-dot-config-targets := clean clobber mrproper distclean \
429	help %docs check% coccicheck \
430	ubootversion backup
431
432	config-targets := 0
433	mixed-targets := 0
434	dot-config := 1
435
436	ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
437	ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
438	dot-config := 0
439	endif
440	endif
441
442	ifeq ($(KBUILD_EXTMOD),)
443	ifneq ($(filter config %config,$(MAKECMDGOALS)),)
444	config-targets := 1
445	ifneq ($(filter-out config %config,$(MAKECMDGOALS)),)
446	mixed-targets := 1
447	endif
448	endif
449	endif
450
451	ifeq ($(mixed-targets),1)
452	# ===========================================================================
453	# We're called with mixed targets (*config and build targets).
454	# Handle them one by one.
455
456	PHONY += $(MAKECMDGOALS) __build_one_by_one
457
458	$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
459	@:
460
461	__build_one_by_one:
462	$(Q)set -e; \
463	for i in $(MAKECMDGOALS); do \
464	$(MAKE) -f $(srctree)/Makefile $$i; \
465	done
466
467	else
468	ifeq ($(config-targets),1)
469	# ===========================================================================
470	# *config targets only - make sure prerequisites are updated, and descend
471	# in scripts/kconfig to make the *config target
472
473	KBUILD_DEFCONFIG := sandbox_defconfig
474	export KBUILD_DEFCONFIG KBUILD_KCONFIG
475
476	config: scripts_basic outputmakefile FORCE
477	+$(Q)$(CONFIG_SHELL) $(srctree)/scripts/multiconfig.sh $@
478
479	%config: scripts_basic outputmakefile FORCE
480	+$(Q)$(CONFIG_SHELL) $(srctree)/scripts/multiconfig.sh $@
481
482	else
483	# ===========================================================================
484	# Build targets only - this includes vmlinux, arch specific targets, clean
485	# targets and others. In general all targets except *config targets.
486
487	ifeq ($(dot-config),1)
488	# Read in config
489	-include include/config/auto.conf
490
491	# Read in dependencies to all Kconfig* files, make sure to run
492	# oldconfig if changes are detected.
493	-include include/config/auto.conf.cmd
494
495	# To avoid any implicit rule to kick in, define an empty command
496	$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
497
498	# If .config is newer than include/config/auto.conf, someone tinkered
499	# with it and forgot to run make oldconfig.
500	# if auto.conf.cmd is missing then we are probably in a cleaned tree so
501	# we execute the config step to be sure to catch updated Kconfig files
502	include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
503	$(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
504
505	-include include/autoconf.mk
506	-include include/autoconf.mk.dep
507
508	# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
509	# is up-to-date. When we switch to a different board configuration, old CONFIG
510	# macros are still remaining in include/config/auto.conf. Without the following
511	# gimmick, wrong config.mk would be included leading nasty warnings/errors.
512	autoconf_is_current := $(if $(wildcard $(KCONFIG_CONFIG)),$(shell find . \
513	-path ./include/config/auto.conf -newer $(KCONFIG_CONFIG)))
514	ifneq ($(autoconf_is_current),)
515	include $(srctree)/config.mk
516	include $(srctree)/arch/$(ARCH)/Makefile
517	endif
518
519	# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
520	# that (or fail if absent). Otherwise, search for a linker script in a
521	# standard location.
522
523	ifndef LDSCRIPT
524	#LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
525	ifdef CONFIG_SYS_LDSCRIPT
526	# need to strip off double quotes
527	LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
528	endif
529	endif
530
531	# If there is no specified link script, we look in a number of places for it
532	ifndef LDSCRIPT
533	ifeq ($(wildcard $(LDSCRIPT)),)
534	LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
535	endif
536	ifeq ($(wildcard $(LDSCRIPT)),)
537	LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
538	endif
539	ifeq ($(wildcard $(LDSCRIPT)),)
540	LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
541	endif
542	endif
543
544	else
545	# Dummy target needed, because used as prerequisite
546	include/config/auto.conf: ;
547	endif # $(dot-config)
548
549	ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
550	KBUILD_CFLAGS += -Os
551	else
552	KBUILD_CFLAGS += -O2
553	endif
554
555	ifdef BUILD_TAG
556	KBUILD_CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"'
557	endif
558
559	KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
560
561	KBUILD_CFLAGS += -g
562	# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
563	# option to the assembler.
564	KBUILD_AFLAGS += -g
565
566	# Report stack usage if supported
567	ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
568	KBUILD_CFLAGS += -fstack-usage
569	endif
570
571	KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
572
573	# turn jbsr into jsr for m68k
574	ifeq ($(ARCH),m68k)
575	ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
576	KBUILD_AFLAGS += -Wa,-gstabs,-S
577	endif
578	endif
579
580	# Prohibit date/time macros, which would make the build non-deterministic
581	KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)
582
583	ifneq ($(CONFIG_SYS_TEXT_BASE),)
584	KBUILD_CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE)
585	endif
586
587	export CONFIG_SYS_TEXT_BASE
588
589	include $(srctree)/scripts/Makefile.extrawarn
590
591	# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
592	KBUILD_CPPFLAGS += $(KCPPFLAGS)
593	KBUILD_AFLAGS += $(KAFLAGS)
594	KBUILD_CFLAGS += $(KCFLAGS)
595	KBUILD_CFLAGS += -Werror
596
597	# Use UBOOTINCLUDE when you must reference the include/ directory.
598	# Needed to be compatible with the O= option
599	UBOOTINCLUDE := \
600	-Iinclude \
601	$(if $(KBUILD_SRC), -I$(srctree)/include) \
602	-I$(srctree)/arch/$(ARCH)/include \
603	-include $(srctree)/include/linux/kconfig.h
604
605	NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
606	CHECKFLAGS += $(NOSTDINC_FLAGS)
607
608	# FIX ME
609	cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
610	$(NOSTDINC_FLAGS)
611	c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
612
613	#########################################################################
614	# U-Boot objects....order is important (i.e. start must be first)
615
616	HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
617
618	libs-y += lib/
619	libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
620	libs-$(CONFIG_OF_EMBED) += dts/
621	libs-y += fs/
622	libs-y += net/
623	libs-y += disk/
624	libs-y += drivers/
625	libs-y += drivers/dma/
626	libs-y += drivers/gpio/
627	libs-y += drivers/i2c/
628	libs-y += drivers/mmc/
629	libs-y += drivers/mtd/
630	libs-$(CONFIG_AML_NAND) += drivers/nand/
631	libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/
632	libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/amlogic_mtd/
633	libs-y += drivers/mtd/onenand/
634	libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
635	libs-y += drivers/mtd/spi/
636	libs-y += drivers/net/
637	libs-y += drivers/net/phy/
638	libs-y += drivers/pci/
639	libs-y += drivers/power/ \
640	drivers/power/fuel_gauge/ \
641	drivers/power/mfd/ \
642	drivers/power/pmic/ \
643	drivers/power/battery/
644	libs-y += drivers/spi/
645	libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
646	libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
647	libs-y += drivers/serial/
648	libs-y += drivers/usb/eth/
649	libs-y += drivers/usb/gadget/
650	libs-y += drivers/usb/host/
651	libs-y += drivers/usb/musb/
652	libs-y += drivers/usb/musb-new/
653	libs-y += drivers/usb/phy/
654	libs-y += drivers/usb/ulpi/
655	libs-y += common/
656	libs-$(CONFIG_API) += api/
657	libs-$(CONFIG_HAS_POST) += post/
658	libs-y += test/
659	libs-y += test/dm/
660
661	#libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
662	libs-y += $(if $(BOARDDIR),$(BOARDDIR)/)
663
664	libs-y := $(sort $(libs-y))
665
666	u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
667
668	u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
669
670	libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
671
672	u-boot-init := $(head-y)
673	u-boot-main := $(libs-y)
674
675
676	# Add GCC lib
677	ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
678	PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
679	else
680	PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
681	endif
682	PLATFORM_LIBS += $(PLATFORM_LIBGCC)
683	export PLATFORM_LIBS
684	export PLATFORM_LIBGCC
685
686	# Special flags for CPP when processing the linker script.
687	# Pass the version down so we can handle backwards compatibility
688	# on the fly.
689	LDPPFLAGS += \
690	-include $(srctree)/include/u-boot/u-boot.lds.h \
691	-DCPUDIR=$(CPUDIR) \
692	$(shell $(LD) --version | \
693	sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
694
695	#########################################################################
696	#########################################################################
697
698	ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
699	BOARD_SIZE_CHECK = \
700	@actual=`wc -c $@ | awk '{print $$1}'`; \
701	limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
702	if test $$actual -gt $$limit; then \
703	echo "$@ exceeds file size limit:" >&2 ; \
704	echo " limit: $$limit bytes" >&2 ; \
705	echo " actual: $$actual bytes" >&2 ; \
706	echo " excess: $$((actual - limit)) bytes" >&2; \
707	exit 1; \
708	fi
709	else
710	BOARD_SIZE_CHECK =
711	endif
712
713	# Statically apply RELA-style relocations (currently arm64 only)
714	ifneq ($(CONFIG_STATIC_RELA),)
715	# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
716	DO_STATIC_RELA = \
717	start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
718	end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
719	tools/relocate-rela $(2) $(3) $$start $$end
720	else
721	DO_STATIC_RELA =
722	endif
723
724	# Always append ALL so that arch config.mk's can add custom ones
725	ALL-y += u-boot.srec u-boot.bin System.map binary_size_check
726	ALL-y += u-boot.hex
727	ifeq ($(CONFIG_NEED_BL301), y)
728	ALL-y += bl301.bin
729	endif
730	ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
731	ifeq ($(CONFIG_SPL_FSL_PBL),y)
732	ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
733	else
734	ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
735	endif
736	ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
737	ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
738	ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
739	ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb u-boot-dtb.bin
740	ifeq ($(CONFIG_SPL_FRAMEWORK),y)
741	ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
742	endif
743	ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
744	ifneq ($(CONFIG_SPL_TARGET),)
745	ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
746	endif
747	ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
748
749	# We can't do this yet due to the need for binary blobs
750	# ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
751
752	# enable combined SPL/u-boot/dtb rules for tegra
753	ifneq ($(CONFIG_TEGRA),)
754	ifeq ($(CONFIG_SPL),y)
755	ifeq ($(CONFIG_OF_SEPARATE),y)
756	ALL-y += u-boot-dtb-tegra.bin
757	else
758	ALL-y += u-boot-nodtb-tegra.bin
759	endif
760	endif
761	endif
762
763	# Add optional build target if defined in board/cpu/soc headers
764	ifneq ($(CONFIG_BUILD_TARGET),)
765	ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
766	endif
767
768	LDFLAGS_u-boot += $(LDFLAGS_FINAL)
769	ifneq ($(CONFIG_SYS_TEXT_BASE),)
770	LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
771	endif
772
773	quiet_cmd_objcopy = OBJCOPY $@
774	cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
775
776	quiet_cmd_mkimage = MKIMAGE $@
777	cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
778	$(if $(KBUILD_VERBOSE:1=), >/dev/null)
779
780	quiet_cmd_cat = CAT $@
781	cmd_cat = cat $(filter-out $(PHONY), $^) > $@
782
783	append = cat $(filter-out $< $(PHONY), $^) >> $@
784
785	quiet_cmd_pad_cat = CAT $@
786	cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
787
788	all: $(ALL-y)
789	ifneq ($(CONFIG_SYS_GENERIC_BOARD),y)
790	@echo "===================== WARNING ======================"
791	@echo "Please convert this board to generic board."
792	@echo "Otherwise it will be removed by the end of 2014."
793	@echo "See doc/README.generic-board for further information"
794	@echo "===================================================="
795	endif
796
797	PHONY += dtbs
798	dtbs dts/dt.dtb: checkdtc u-boot
799	$(Q)$(MAKE) $(build)=dts dtbs
800
801	u-boot-dtb.bin: u-boot.bin dts/dt.dtb FORCE
802	$(call if_changed,cat)
803
804	%.imx: %.bin
805	$(Q)$(MAKE) $(build)=arch/arm/imx-common $@
806
807	quiet_cmd_copy = COPY $@
808	cmd_copy = cp $< $@
809
810	u-boot.dtb: dts/dt.dtb
811	$(call cmd,copy)
812
813	OBJCOPYFLAGS_u-boot.hex := -O ihex
814
815	OBJCOPYFLAGS_u-boot.srec := -O srec
816
817	u-boot.hex u-boot.srec: u-boot FORCE
818	$(call if_changed,objcopy)
819
820	OBJCOPYFLAGS_u-boot.bin := -O binary \
821	$(if $(CONFIG_X86_RESET_VECTOR),-R .start16 -R .resetvec)
822
823	binary_size_check: u-boot.bin FORCE
824	@file_size=$(shell wc -c u-boot.bin | awk '{print $$1}') ; \
825	map_size=$(shell cat u-boot.map | \
826	awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
827	| sed 's/0X//g' \
828	| bc); \
829	if [ "" != "$$map_size" ]; then \
830	if test $$map_size -ne $$file_size; then \
831	echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
832	echo " but u-boot.bin shows $$file_size" >&2 ; \
833	exit 1; \
834	fi \
835	fi
836
837	u-boot.bin: u-boot FORCE
838	$(call if_changed,objcopy)
839	@$(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
840	$(BOARD_SIZE_CHECK)
841
842	u-boot.ldr: u-boot
843	$(CREATE_LDR_ENV)
844	$(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
845	$(BOARD_SIZE_CHECK)
846
847	OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
848
849	OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
850
851	u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
852	$(call if_changed,objcopy)
853
854	.PHONY: u-boot-comp.bin
855	u-boot-comp.bin:u-boot.bin
856	#tools/uclpack $< $@
857	cp $< $@
858	# $(objtree)/tools/uclpack $< $@
859
860	ifeq ($(CONFIG_NEED_BL301), y)
861	.PHONY : bl301.bin
862	bl301.bin: tools prepare acs.bin bl21.bin
863	$(Q)$(MAKE) -C $(srctree)/$(CPUDIR)/${SOC}/firmware/scp_task
864	endif
865
866	.PHONY : acs.bin
867	acs.bin: tools prepare u-boot.bin
868	$(Q)$(MAKE) -C $(srctree)/$(CPUDIR)/${SOC}/firmware/acs all FIRMWARE=$@
869
870	.PHONY : bl21.bin
871	bl21.bin: tools prepare u-boot.bin acs.bin
872	$(Q)$(MAKE) -C $(srctree)/$(CPUDIR)/${SOC}/firmware/bl21 all FIRMWARE=$@
873
874	#
875	# U-Boot entry point, needed for booting of full-blown U-Boot
876	# from the SPL U-Boot version.
877	#
878	ifndef CONFIG_SYS_UBOOT_START
879	CONFIG_SYS_UBOOT_START := 0
880	endif
881
882	MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
883	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
884	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
885
886	MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
887	-T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
888
889	MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
890	-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
891
892	u-boot.img u-boot.kwb u-boot.pbl: u-boot.bin FORCE
893	$(call if_changed,mkimage)
894
895	MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
896
897	u-boot-dtb.img: u-boot-dtb.bin FORCE
898	$(call if_changed,mkimage)
899
900	u-boot.sha1: u-boot.bin
901	tools/ubsha1 u-boot.bin
902
903	u-boot.dis: u-boot
904	$(OBJDUMP) -d $< > $@
905
906	ifdef CONFIG_TPL
907	SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
908	else
909	SPL_PAYLOAD := u-boot.bin
910	endif
911
912	OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
913	--pad-to=$(CONFIG_SPL_PAD_TO)
914	u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
915	$(call if_changed,pad_cat)
916
917	OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
918	--pad-to=$(CONFIG_TPL_PAD_TO)
919	tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
920	$(call if_changed,pad_cat)
921
922	SPL: spl/u-boot-spl.bin FORCE
923	$(Q)$(MAKE) $(build)=arch/arm/imx-common $@
924
925	u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
926	$(Q)$(MAKE) $(build)=arch/arm/imx-common $@
927
928	MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
929
930	u-boot.ubl: u-boot-with-spl.bin FORCE
931	$(call if_changed,mkimage)
932
933	MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
934	$(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
935	-T aisimage -e $(CONFIG_SPL_TEXT_BASE)
936	spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
937	$(call if_changed,mkimage)
938
939	OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
940	u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
941	$(call if_changed,pad_cat)
942
943	u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
944	$(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
945	u-boot.sb: u-boot.bin spl/u-boot-spl.bin
946	$(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
947
948	# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
949	# Both images are created using mkimage (crc etc), so that the ROM
950	# bootloader can check its integrity. Padding needs to be done to the
951	# SPL image (with mkimage header) and not the binary. Otherwise the resulting image
952	# which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
953	# The resulting image containing both U-Boot images is called u-boot.spr
954	MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
955	-a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
956	spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
957	$(call if_changed,mkimage)
958
959	OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
960	--gap-fill=0xff
961	u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
962	$(call if_changed,pad_cat)
963
964	MKIMAGEFLAGS_u-boot-spl.gph = -A $(ARCH) -T gpimage -C none \
965	-a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n SPL
966	spl/u-boot-spl.gph: spl/u-boot-spl.bin FORCE
967	$(call if_changed,mkimage)
968
969	OBJCOPYFLAGS_u-boot-spi.gph = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
970	--gap-fill=0
971	u-boot-spi.gph: spl/u-boot-spl.gph u-boot.img FORCE
972	$(call if_changed,pad_cat)
973
974	MKIMAGEFLAGS_u-boot-nand.gph = -A $(ARCH) -T gpimage -C none \
975	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) -n U-Boot
976	u-boot-nand.gph: u-boot.bin FORCE
977	$(call if_changed,mkimage)
978	@dd if=/dev/zero bs=8 count=1 2>/dev/null >> $@
979
980	# x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
981	# reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
982	# the middle.
983	ifneq ($(CONFIG_X86_RESET_VECTOR),)
984	rom: u-boot.rom FORCE
985
986	IFDTOOL=$(objtree)/tools/ifdtool
987	IFDTOOL_FLAGS = -f 0:$(objtree)/u-boot.dtb
988	IFDTOOL_FLAGS += -m 0x$(shell $(NM) u-boot |grep _dt_ucode_base_size |cut -d' ' -f1)
989	IFDTOOL_FLAGS += -U $(CONFIG_SYS_TEXT_BASE):$(objtree)/u-boot.bin
990	IFDTOOL_FLAGS += -w $(CONFIG_SYS_X86_START16):$(objtree)/u-boot-x86-16bit.bin
991
992	ifneq ($(CONFIG_HAVE_INTEL_ME),)
993	IFDTOOL_ME_FLAGS = -D $(srctree)/board/$(BOARDDIR)/descriptor.bin
994	IFDTOOL_ME_FLAGS += -i ME:$(srctree)/board/$(BOARDDIR)/me.bin
995	endif
996
997	ifneq ($(CONFIG_HAVE_MRC),)
998	IFDTOOL_FLAGS += -w $(CONFIG_X86_MRC_ADDR):$(srctree)/board/$(BOARDDIR)/mrc.bin
999	endif
1000
1001	ifneq ($(CONFIG_HAVE_FSP),)
1002	IFDTOOL_FLAGS += -w $(CONFIG_FSP_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_FSP_FILE)
1003	endif
1004
1005	ifneq ($(CONFIG_HAVE_CMC),)
1006	IFDTOOL_FLAGS += -w $(CONFIG_CMC_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_CMC_FILE)
1007	endif
1008
1009	ifneq ($(CONFIG_X86_OPTION_ROM_ADDR),)
1010	IFDTOOL_FLAGS += -w $(CONFIG_X86_OPTION_ROM_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_X86_OPTION_ROM_FILE)
1011	endif
1012
1013	quiet_cmd_ifdtool = IFDTOOL $@
1014	cmd_ifdtool = $(IFDTOOL) -c -r $(CONFIG_ROM_SIZE) u-boot.tmp;
1015	ifneq ($(CONFIG_HAVE_INTEL_ME),)
1016	cmd_ifdtool += $(IFDTOOL) $(IFDTOOL_ME_FLAGS) u-boot.tmp;
1017	endif
1018	cmd_ifdtool += $(IFDTOOL) $(IFDTOOL_FLAGS) u-boot.tmp;
1019	cmd_ifdtool += mv u-boot.tmp $@
1020
1021	u-boot.rom: u-boot-x86-16bit.bin u-boot-dtb.bin
1022	$(call if_changed,ifdtool)
1023
1024	OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
1025	u-boot-x86-16bit.bin: u-boot FORCE
1026	$(call if_changed,objcopy)
1027	endif
1028
1029	ifneq ($(CONFIG_SUNXI),)
1030	OBJCOPYFLAGS_u-boot-sunxi-with-spl.bin = -I binary -O binary \
1031	--pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff
1032	u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin \
1033	u-boot$(if $(CONFIG_OF_CONTROL),-dtb,).img FORCE
1034	$(call if_changed,pad_cat)
1035	endif
1036
1037	ifneq ($(CONFIG_TEGRA),)
1038	OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1039	u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1040	$(call if_changed,pad_cat)
1041
1042	ifeq ($(CONFIG_OF_SEPARATE),y)
1043	u-boot-dtb-tegra.bin: u-boot-nodtb-tegra.bin dts/dt.dtb FORCE
1044	$(call if_changed,cat)
1045	endif
1046	endif
1047
1048	u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1049	$(call if_changed,cat)
1050
1051	#Add a target to create boot binary having SPL binary in PBI format
1052	#concatenated with u-boot binary. It is need by PowerPC SoC having
1053	#internal SRAM <= 512KB.
1054	MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1055	-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1056	-A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1057
1058	spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1059	$(call if_changed,mkimage)
1060
1061	ifeq ($(ARCH),arm)
1062	UBOOT_BINLOAD := u-boot.img
1063	else
1064	UBOOT_BINLOAD := u-boot.bin
1065	endif
1066
1067	OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1068	--gap-fill=0xff
1069
1070	u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1071	$(call if_changed,pad_cat)
1072
1073	# PPC4xx needs the SPL at the end of the image, since the reset vector
1074	# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1075	# and need to introduce a new build target with the full blown U-Boot
1076	# at the start padded up to the start of the SPL image. And then concat
1077	# the SPL image to the end.
1078
1079	OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1080	--pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1081	u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1082	$(call if_changed,pad_cat)
1083
1084	# Create a new ELF from a raw binary file. This is useful for arm64
1085	# where static relocation needs to be performed on the raw binary,
1086	# but certain simulators only accept an ELF file (but don't do the
1087	# relocation).
1088	# FIXME refactor dts/Makefile to share target/arch detection
1089	u-boot.elf: u-boot.bin
1090	@$(OBJCOPY) -B aarch64 -I binary -O elf64-littleaarch64 \
1091	$< u-boot-elf.o
1092	@$(LD) u-boot-elf.o -o $@ \
1093	--defsym=_start=$(CONFIG_SYS_TEXT_BASE) \
1094	-Ttext=$(CONFIG_SYS_TEXT_BASE)
1095
1096	# Rule to link u-boot
1097	# May be overridden by arch/$(ARCH)/config.mk
1098	quiet_cmd_u-boot__ ?= LD $@
1099	cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1100	-T u-boot.lds $(u-boot-init) \
1101	--start-group $(u-boot-main) --end-group \
1102	$(PLATFORM_LIBS) -Map u-boot.map
1103
1104	quiet_cmd_smap = GEN common/system_map.o
1105	cmd_smap = \
1106	smap=`$(call SYSTEM_MAP,u-boot) | \
1107	awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1108	$(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1109	-c $(srctree)/common/system_map.c -o common/system_map.o
1110
1111	u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds
1112	$(call if_changed,u-boot__)
1113	ifeq ($(CONFIG_KALLSYMS),y)
1114	$(call cmd,smap)
1115	$(call cmd,u-boot__) common/system_map.o
1116	endif
1117
1118	# The actual objects are generated when descending,
1119	# make sure no implicit rule kicks in
1120	$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1121
1122	# Handle descending into subdirectories listed in $(vmlinux-dirs)
1123	# Preset locale variables to speed up the build process. Limit locale
1124	# tweaks to this spot to avoid wrong language settings when running
1125	# make menuconfig etc.
1126	# Error messages still appears in the original language
1127
1128	PHONY += $(u-boot-dirs)
1129	$(u-boot-dirs): prepare scripts
1130	$(Q)$(MAKE) $(build)=$@
1131
1132	tools: prepare
1133	# The "tools" are needed early
1134	$(filter-out tools, $(u-boot-dirs)): tools
1135	# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1136	# is "yes"), so compile examples after U-Boot is compiled.
1137	examples: $(filter-out examples, $(u-boot-dirs))
1138
1139	define filechk_uboot.release
1140	echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1141	endef
1142
1143	# Store (new) UBOOTRELEASE string in include/config/uboot.release
1144	include/config/uboot.release: include/config/auto.conf FORCE
1145	$(call filechk,uboot.release)
1146
1147
1148	# Things we need to do before we recursively start building the kernel
1149	# or the modules are listed in "prepare".
1150	# A multi level approach is used. prepareN is processed before prepareN-1.
1151	# archprepare is used in arch Makefiles and when processed asm symlink,
1152	# version.h and scripts_basic is processed / created.
1153
1154	# Listed in dependency order
1155	PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1156
1157	# prepare3 is used to check if we are building in a separate output directory,
1158	# and if so do:
1159	# 1) Check that make has not been executed in the kernel src $(srctree)
1160	prepare3: include/config/uboot.release
1161	ifneq ($(KBUILD_SRC),)
1162	@$(kecho) ' Using $(srctree) as source for U-Boot'
1163	$(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1164	echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
1165	echo >&2 " in the '$(srctree)' directory.";\
1166	/bin/false; \
1167	fi;
1168	endif
1169
1170	# prepare2 creates a makefile if using a separate output directory
1171	prepare2: prepare3 outputmakefile
1172
1173	prepare1: prepare2 $(version_h) $(timestamp_h) \
1174	include/config/auto.conf
1175	ifeq ($(__HAVE_ARCH_GENERIC_BOARD),)
1176	ifeq ($(CONFIG_SYS_GENERIC_BOARD),y)
1177	@echo >&2 " Your architecture does not support generic board."
1178	@echo >&2 " Please undefine CONFIG_SYS_GENERIC_BOARD in your board config file."
1179	@/bin/false
1180	endif
1181	endif
1182	ifeq ($(wildcard $(LDSCRIPT)),)
1183	@echo >&2 " Could not find linker script."
1184	@/bin/false
1185	endif
1186
1187	archprepare: prepare1 scripts_basic
1188
1189	prepare0: archprepare FORCE
1190	$(Q)$(MAKE) $(build)=.
1191
1192	# All the preparing..
1193	prepare: prepare0
1194
1195	# Generate some files
1196	# ---------------------------------------------------------------------------
1197
1198	define filechk_version.h
1199	(echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1200	echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1201	echo \#define CONFIG_SYSTEM_AS_ROOT \"${SYSTEMMODE}\"; \
1202	echo \#define CONFIG_BUILD_TYPE \"${BUILD_TYPE}\"; \
1203	echo \#define CONFIG_BOARD_NAME \"${BOARD_NAME}\"; \
1204	echo \#define CONFIG_AVB2 \"${AVBMODE}\"; \
1205	echo \#define CC_VERSION_STRING \"$$($(CC) --version | head -n 1)\"; \
1206	echo \#define LD_VERSION_STRING \"$$($(LD) --version | head -n 1)\"; )
1207	endef
1208
1209	define filechk_timestamp.h
1210	(LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1211	LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1212	LC_ALL=C date +'#define U_BOOT_DATE_TIME "%y%m%d.%H%M%S"';)
1213	endef
1214
1215	$(version_h): include/config/uboot.release FORCE
1216	$(call filechk,version.h)
1217
1218	$(timestamp_h): $(srctree)/Makefile FORCE
1219	$(call filechk,timestamp.h)
1220
1221	# ---------------------------------------------------------------------------
1222
1223	PHONY += depend dep
1224	depend dep:
1225	@echo '*** Warning: make $@ is unnecessary now.'
1226
1227	# ---------------------------------------------------------------------------
1228	quiet_cmd_cpp_lds = LDS $@
1229	cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
1230	-D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
1231
1232	u-boot.lds: $(LDSCRIPT) prepare FORCE
1233	$(call if_changed_dep,cpp_lds)
1234
1235	spl/u-boot-spl.bin: spl/u-boot-spl
1236	@:
1237	spl/u-boot-spl: tools prepare
1238	$(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1239
1240	spl/sunxi-spl.bin: spl/u-boot-spl
1241	@:
1242
1243	tpl/u-boot-tpl.bin: tools prepare
1244	$(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1245
1246	TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1247
1248	FIND := find
1249	FINDFLAGS := -L
1250
1251	tags ctags:
1252	ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1253	-name '*.[chS]' -print`
1254
1255	etags:
1256	etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1257	-name '*.[chS]' -print`
1258	cscope:
1259	$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1260	cscope.files
1261	cscope -b -q -k
1262
1263	SYSTEM_MAP = \
1264	$(NM) $1 | \
1265	grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1266	LC_ALL=C sort
1267	System.map: u-boot
1268	@$(call SYSTEM_MAP,$<) > $@
1269
1270	checkdtc:
1271	@if test $(call dtc-version) -lt 0104; then \
1272	echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \
1273	false; \
1274	fi
1275
1276	#########################################################################
1277
1278	# ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1279	# R_AARCH64_RELATIVE (64-bit).
1280	checkarmreloc: u-boot
1281	@RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1282	grep R_A | sort -u`"; \
1283	if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1284	"$$RELOC" != "R_AARCH64_RELATIVE"; then \
1285	echo "$< contains unexpected relocations: $$RELOC"; \
1286	false; \
1287	fi
1288
1289	env: scripts_basic
1290	$(Q)$(MAKE) $(build)=tools/$@
1291
1292	tools-only: scripts_basic $(version_h) $(timestamp_h)
1293	$(Q)$(MAKE) $(build)=tools
1294
1295	tools-all: export HOST_TOOLS_ALL=y
1296	tools-all: env tools ;
1297
1298	cross_tools: export CROSS_BUILD_TOOLS=y
1299	cross_tools: tools ;
1300
1301	.PHONY : CHANGELOG
1302	CHANGELOG:
1303	git log --no-merges U-Boot-1_1_5.. | \
1304	unexpand -a | sed -e 's/\s\s*$$//' > $@
1305
1306	include/license.h: tools/bin2header COPYING
1307	cat COPYING | gzip -9 -c | ./tools/bin2header license_gzip > include/license.h
1308	#########################################################################
1309
1310	###
1311	# Cleaning is done on three levels.
1312	# make clean Delete most generated files
1313	# Leave enough to build external modules
1314	# make mrproper Delete the current configuration, and all generated files
1315	# make distclean Remove editor backup files, patch leftover files and the like
1316
1317	# Directories & files removed with 'make clean'
1318	CLEAN_DIRS += $(MODVERDIR) \
1319	$(foreach d, spl tpl, $(patsubst %,$d/%, \
1320	$(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1321
1322	CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
1323	u-boot* MLO* SPL System.map
1324
1325	# Directories & files removed with 'make mrproper'
1326	MRPROPER_DIRS += include/config include/generated spl tpl \
1327	.tmp_objdiff
1328	MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1329	ctags etags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
1330
1331	# clean - Delete most, but leave enough to build external modules
1332	#
1333	clean: rm-dirs := $(CLEAN_DIRS)
1334	clean: rm-files := $(CLEAN_FILES)
1335
1336	clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1337
1338	clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook)
1339
1340	PHONY += $(clean-dirs) clean archclean
1341	$(clean-dirs):
1342	$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1343
1344	# TODO: Do not use *.cfgtmp
1345	clean: $(clean-dirs)
1346	$(call cmd,rmdirs)
1347	$(call cmd,rmfiles)
1348	@find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1349	\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1350	-o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \
1351	-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1352	-o -name '*.symtypes' -o -name 'modules.order' \
1353	-o -name modules.builtin -o -name '.tmp_*.o.*' \
1354	-o -name '*.gcno' \) -type f -print | xargs rm -f
1355
1356	# mrproper - Delete all generated files, including .config
1357	#
1358	mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
1359	mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1360	mrproper-dirs := $(addprefix _mrproper_,scripts)
1361
1362	PHONY += $(mrproper-dirs) mrproper archmrproper
1363	$(mrproper-dirs):
1364	$(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1365
1366	mrproper: clean $(mrproper-dirs)
1367	$(call cmd,rmdirs)
1368	$(call cmd,rmfiles)
1369	@rm -f arch/*/include/asm/arch
1370
1371	# distclean
1372	#
1373	PHONY += distclean
1374
1375	distclean: mrproper
1376	@find $(srctree) $(RCS_FIND_IGNORE) \
1377	\( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1378	-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1379	-o -name '.*.rej' -o -name '*%' -o -name 'core' \
1380	-o -name '*.o' \) \
1381	-type f -print | xargs rm -f
1382	@rm -f boards.cfg
1383	@rm -rf $(buildtree)/*
1384	@rm -f $(FIP_FOLDER_SOC)/acs.bin
1385	@rm -f $(FIP_FOLDER_SOC)/bl2_acs.bin
1386	@rm -f $(FIP_FOLDER_SOC)/bl301.bin
1387	@rm -f $(FIP_FOLDER_SOC)/bl33.bin
1388	@rm -f $(FIP_FOLDER_SOC)/fip.bin
1389	@rm -f $(FIP_FOLDER_SOC)/boot.bin
1390	@rm -f $(FIP_FOLDER_SOC)/boot_sd.bin
1391	@rm -f $(FIP_FOLDER_SOC)/u-boot.bin
1392	@rm -f $(FIP_FOLDER_SOC)/u-boot.bin.* $(FIP_FOLDER_SOC)/*.encrypt
1393	@rm -f $(FIP_FOLDER)/u-boot.bin.* $(FIP_FOLDER)/*.bin $(FIP_FOLDER)/*.encrypt
1394	@rm -f $(srctree)/fip/aml_encrypt_gxb
1395
1396	backup:
1397	F=`basename $(srctree)` ; cd .. ; \
1398	gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1399
1400	help:
1401	@echo 'Cleaning targets:'
1402	@echo ' clean - Remove most generated files but keep the config'
1403	@echo ' mrproper - Remove all generated files + config + various backup files'
1404	@echo ' distclean - mrproper + remove editor backup and patch files'
1405	@echo ''
1406	@echo 'Configuration targets:'
1407	@$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1408	@echo ''
1409	@echo 'Other generic targets:'
1410	@echo ' all - Build all necessary images depending on configuration'
1411	@echo '* u-boot - Build the bare u-boot'
1412	@echo ' dir/ - Build all files in dir and below'
1413	@echo ' dir/file.[oisS] - Build specified target only'
1414	@echo ' dir/file.lst - Build specified mixed source/assembly target only'
1415	@echo ' (requires a recent binutils and recent build (System.map))'
1416	@echo ' tags/ctags - Generate ctags file for editors'
1417	@echo ' etags - Generate etags file for editors'
1418	@echo ' cscope - Generate cscope index'
1419	@echo ' ubootrelease - Output the release version string (use with make -s)'
1420	@echo ' ubootversion - Output the version stored in Makefile (use with make -s)'
1421	@echo ''
1422	@echo 'Static analysers'
1423	@echo ' checkstack - Generate a list of stack hogs'
1424	@echo ''
1425	@echo 'Documentation targets:'
1426	@$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp
1427	@echo ''
1428	@echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1429	@echo ' make V=2 [targets] 2 => give reason for rebuild of target'
1430	@echo ' make O=dir [targets] Locate all output files in "dir", including .config'
1431	@echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
1432	@echo ' make C=2 [targets] Force check of all c source with $$CHECK'
1433	@echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1434	@echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
1435	@echo ' 1: warnings which may be relevant and do not occur too often'
1436	@echo ' 2: warnings which occur quite often but may still be relevant'
1437	@echo ' 3: more obscure warnings, can most likely be ignored'
1438	@echo ' Multiple levels can be combined with W=12 or W=123'
1439	@echo ''
1440	@echo 'Execute "make" or "make all" to build all targets marked with [*] '
1441	@echo 'For further info see the ./README file'
1442	@export srctree
1443	@$(srctree)/amlogic_help.sh
1444
1445
1446	# Documentation targets
1447	# ---------------------------------------------------------------------------
1448	%docs: scripts_basic FORCE
1449	$(Q)$(MAKE) $(build)=scripts build_docproc
1450	$(Q)$(MAKE) $(build)=doc/DocBook $@
1451
1452	# Dummies...
1453	PHONY += prepare scripts
1454	prepare: ;
1455	scripts: ;
1456
1457	endif #ifeq ($(config-targets),1)
1458	endif #ifeq ($(mixed-targets),1)
1459
1460	PHONY += checkstack ubootrelease ubootversion
1461
1462	checkstack:
1463	$(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1464	$(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1465
1466	ubootrelease:
1467	@echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1468
1469	ubootversion:
1470	@echo $(UBOOTVERSION)
1471
1472	# Single targets
1473	# ---------------------------------------------------------------------------
1474	# Single targets are compatible with:
1475	# - build with mixed source and output
1476	# - build with separate output dir 'make O=...'
1477	# - external modules
1478	#
1479	# target-dir => where to store outputfile
1480	# build-dir => directory in kernel source tree to use
1481
1482	ifeq ($(KBUILD_EXTMOD),)
1483	build-dir = $(patsubst %/,%,$(dir $@))
1484	target-dir = $(dir $@)
1485	else
1486	zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1487	build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1488	target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1489	endif
1490
1491	%.s: %.c prepare scripts FORCE
1492	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1493	%.i: %.c prepare scripts FORCE
1494	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1495	%.o: %.c prepare scripts FORCE
1496	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1497	%.lst: %.c prepare scripts FORCE
1498	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1499	%.s: %.S prepare scripts FORCE
1500	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1501	%.o: %.S prepare scripts FORCE
1502	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1503	%.symtypes: %.c prepare scripts FORCE
1504	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1505
1506	# Modules
1507	/: prepare scripts FORCE
1508	$(cmd_crmodverdir)
1509	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1510	$(build)=$(build-dir)
1511	%/: prepare scripts FORCE
1512	$(cmd_crmodverdir)
1513	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1514	$(build)=$(build-dir)
1515	%.ko: prepare scripts FORCE
1516	$(cmd_crmodverdir)
1517	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1518	$(build)=$(build-dir) $(@:.ko=.o)
1519	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1520
1521	# FIXME Should go into a make.lib or something
1522	# ===========================================================================
1523
1524	quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
1525	cmd_rmdirs = rm -rf $(rm-dirs)
1526
1527	quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
1528	cmd_rmfiles = rm -f $(rm-files)
1529
1530	# read all saved command lines
1531
1532	targets := $(wildcard $(sort $(targets)))
1533	cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1534
1535	ifneq ($(cmd_files),)
1536	$(cmd_files): ; # Do not try to update included dependency files
1537	include $(cmd_files)
1538	endif
1539
1540	# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir
1541	# Usage:
1542	# $(Q)$(MAKE) $(clean)=dir
1543	clean := -f $(srctree)/scripts/Makefile.clean obj
1544
1545	endif # skip-makefile
1546
1547	PHONY += FORCE
1548	FORCE:
1549
1550	# Declare the contents of the .PHONY variable as phony. We keep that
1551	# information in a variable so we can use it in if_changed and friends.
1552	.PHONY: $(PHONY)
1553