• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1# SPDX-License-Identifier: GPL-2.0+
2
3VERSION = 2018
4PATCHLEVEL = 07
5SUBLEVEL =
6EXTRAVERSION =
7NAME =
8
9# *DOCUMENTATION*
10# To see a list of typical targets execute "make help"
11# More info can be located in ./README
12# Comments in this file are targeted only to the developer, do not
13# expect to learn how to build the kernel reading this file.
14
15# o Do not use make's built-in rules and variables
16#   (this increases performance and avoids hard-to-debug behaviour);
17# o Look for make include files relative to root of kernel src
18MAKEFLAGS += -rR --include-dir=$(CURDIR)
19
20# Avoid funny character set dependencies
21unexport LC_ALL
22LC_COLLATE=C
23LC_NUMERIC=C
24export LC_COLLATE LC_NUMERIC
25
26# Avoid interference with shell env settings
27unexport GREP_OPTIONS
28
29# We are using a recursive build, so we need to do a little thinking
30# to get the ordering right.
31#
32# Most importantly: sub-Makefiles should only ever modify files in
33# their own directory. If in some directory we have a dependency on
34# a file in another dir (which doesn't happen often, but it's often
35# unavoidable when linking the built-in.o targets which finally
36# turn into vmlinux), we will call a sub make in that other dir, and
37# after that we are sure that everything which is in that other dir
38# is now up to date.
39#
40# The only cases where we need to modify files which have global
41# effects are thus separated out and done before the recursive
42# descending is started. They are now explicitly listed as the
43# prepare rule.
44
45# Beautify output
46# ---------------------------------------------------------------------------
47#
48# Normally, we echo the whole command before executing it. By making
49# that echo $($(quiet)$(cmd)), we now have the possibility to set
50# $(quiet) to choose other forms of output instead, e.g.
51#
52#         quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
53#         cmd_cc_o_c       = $(CC) $(c_flags) -c -o $@ $<
54#
55# If $(quiet) is empty, the whole command will be printed.
56# If it is set to "quiet_", only the short version will be printed.
57# If it is set to "silent_", nothing will be printed at all, since
58# the variable $(silent_cmd_cc_o_c) doesn't exist.
59#
60# A simple variant is to prefix commands with $(Q) - that's useful
61# for commands that shall be hidden in non-verbose mode.
62#
63#	$(Q)ln $@ :<
64#
65# If KBUILD_VERBOSE equals 0 then the above command will be hidden.
66# If KBUILD_VERBOSE equals 1 then the above command is displayed.
67#
68# To put more focus on warnings, be less verbose as default
69# Use 'make V=1' to see the full commands
70
71ifeq ("$(origin V)", "command line")
72  KBUILD_VERBOSE = $(V)
73endif
74ifndef KBUILD_VERBOSE
75  KBUILD_VERBOSE = 0
76endif
77
78ifeq ($(KBUILD_VERBOSE),1)
79  quiet =
80  Q =
81else
82  quiet=quiet_
83  Q = @
84endif
85
86# If the user is running make -s (silent mode), suppress echoing of
87# commands
88
89ifneq ($(filter 4.%,$(MAKE_VERSION)),)	# make-4
90ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
91  quiet=silent_
92endif
93else					# make-3.8x
94ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
95  quiet=silent_
96endif
97endif
98
99export quiet Q KBUILD_VERBOSE
100
101# kbuild supports saving output files in a separate directory.
102# To locate output files in a separate directory two syntaxes are supported.
103# In both cases the working directory must be the root of the kernel src.
104# 1) O=
105# Use "make O=dir/to/store/output/files/"
106#
107# 2) Set KBUILD_OUTPUT
108# Set the environment variable KBUILD_OUTPUT to point to the directory
109# where the output files shall be placed.
110# export KBUILD_OUTPUT=dir/to/store/output/files/
111# make
112#
113# The O= assignment takes precedence over the KBUILD_OUTPUT environment
114# variable.
115
116# KBUILD_SRC is set on invocation of make in OBJ directory
117# KBUILD_SRC is not intended to be used by the regular user (for now)
118ifeq ($(KBUILD_SRC),)
119
120# OK, Make called in directory where kernel src resides
121# Do we want to locate output files in a separate directory?
122ifeq ("$(origin O)", "command line")
123  KBUILD_OUTPUT := $(O)
124endif
125
126# That's our default target when none is given on the command line
127PHONY := _all
128_all:
129
130# Cancel implicit rules on top Makefile
131$(CURDIR)/Makefile Makefile: ;
132
133ifneq ($(KBUILD_OUTPUT),)
134# Invoke a second make in the output directory, passing relevant variables
135# check that the output directory actually exists
136saved-output := $(KBUILD_OUTPUT)
137KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
138								&& /bin/pwd)
139$(if $(KBUILD_OUTPUT),, \
140     $(error failed to create output directory "$(saved-output)"))
141
142PHONY += $(MAKECMDGOALS) sub-make
143
144$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
145	@:
146
147sub-make: FORCE
148	$(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
149	-f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
150
151# Leave processing to above invocation of make
152skip-makefile := 1
153endif # ifneq ($(KBUILD_OUTPUT),)
154endif # ifeq ($(KBUILD_SRC),)
155
156# We process the rest of the Makefile if this is the final invocation of make
157ifeq ($(skip-makefile),)
158
159# Do not print "Entering directory ...",
160# but we want to display it when entering to the output directory
161# so that IDEs/editors are able to understand relative filenames.
162MAKEFLAGS += --no-print-directory
163
164# Call a source code checker (by default, "sparse") as part of the
165# C compilation.
166#
167# Use 'make C=1' to enable checking of only re-compiled files.
168# Use 'make C=2' to enable checking of *all* source files, regardless
169# of whether they are re-compiled or not.
170#
171# See the file "Documentation/sparse.txt" for more details, including
172# where to get the "sparse" utility.
173
174ifeq ("$(origin C)", "command line")
175  KBUILD_CHECKSRC = $(C)
176endif
177ifndef KBUILD_CHECKSRC
178  KBUILD_CHECKSRC = 0
179endif
180
181# Use make M=dir to specify directory of external module to build
182# Old syntax make ... SUBDIRS=$PWD is still supported
183# Setting the environment variable KBUILD_EXTMOD take precedence
184ifdef SUBDIRS
185  KBUILD_EXTMOD ?= $(SUBDIRS)
186endif
187
188ifeq ("$(origin M)", "command line")
189  KBUILD_EXTMOD := $(M)
190endif
191
192# If building an external module we do not care about the all: rule
193# but instead _all depend on modules
194PHONY += all
195ifeq ($(KBUILD_EXTMOD),)
196_all: all
197else
198_all: modules
199endif
200
201ifeq ($(KBUILD_SRC),)
202        # building in the source tree
203        srctree := .
204else
205        ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
206                # building in a subdirectory of the source tree
207                srctree := ..
208        else
209                srctree := $(KBUILD_SRC)
210        endif
211endif
212objtree		:= .
213src		:= $(srctree)
214obj		:= $(objtree)
215
216VPATH		:= $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
217
218export srctree objtree VPATH
219
220# Make sure CDPATH settings don't interfere
221unexport CDPATH
222
223#########################################################################
224
225HOSTARCH := $(shell uname -m | \
226	sed -e s/i.86/x86/ \
227	    -e s/sun4u/sparc64/ \
228	    -e s/arm.*/arm/ \
229	    -e s/sa110/arm/ \
230	    -e s/ppc64/powerpc/ \
231	    -e s/ppc/powerpc/ \
232	    -e s/macppc/powerpc/\
233	    -e s/sh.*/sh/)
234
235HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
236	    sed -e 's/\(cygwin\).*/cygwin/')
237
238export	HOSTARCH HOSTOS
239
240#########################################################################
241
242# set default to nothing for native builds
243ifeq ($(HOSTARCH),$(ARCH))
244CROSS_COMPILE ?=
245endif
246
247KCONFIG_CONFIG	?= .config
248export KCONFIG_CONFIG
249
250# SHELL used by kbuild
251CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
252	  else if [ -x /bin/bash ]; then echo /bin/bash; \
253	  else echo sh; fi ; fi)
254
255HOSTCC       = cc
256HOSTCXX      = c++
257HOSTCFLAGS   = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
258		$(if $(CONFIG_TOOLS_DEBUG),-g)
259HOSTCXXFLAGS = -O2
260
261# With the move to GCC 6, we have implicitly upgraded our language
262# standard to GNU11 (see https://gcc.gnu.org/gcc-5/porting_to.html).
263# Some Linux distributions (including RHEL7, SLES13, Debian 8) still
264# have older compilers as their default, so we make it explicit for
265# these that our host tools are GNU11 (i.e. C11 w/ GNU extensions).
266CSTD_FLAG := -std=gnu11
267ifeq ($(HOSTOS),linux)
268HOSTCFLAGS += $(CSTD_FLAG)
269endif
270
271ifeq ($(HOSTOS),cygwin)
272HOSTCFLAGS	+= -ansi
273endif
274
275# Mac OS X / Darwin's C preprocessor is Apple specific.  It
276# generates numerous errors and warnings.  We want to bypass it
277# and use GNU C's cpp.	To do this we pass the -traditional-cpp
278# option to the compiler.  Note that the -traditional-cpp flag
279# DOES NOT have the same semantics as GNU C's flag, all it does
280# is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
281#
282# Apple's linker is similar, thanks to the new 2 stage linking
283# multiple symbol definitions are treated as errors, hence the
284# -multiply_defined suppress option to turn off this error.
285#
286ifeq ($(HOSTOS),darwin)
287# get major and minor product version (e.g. '10' and '6' for Snow Leopard)
288DARWIN_MAJOR_VERSION	= $(shell sw_vers -productVersion | cut -f 1 -d '.')
289DARWIN_MINOR_VERSION	= $(shell sw_vers -productVersion | cut -f 2 -d '.')
290
291os_x_before	= $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
292	$(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
293
294# Snow Leopards build environment has no longer restrictions as described above
295HOSTCC       = $(call os_x_before, 10, 5, "cc", "gcc")
296HOSTCFLAGS  += $(call os_x_before, 10, 4, "-traditional-cpp")
297HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
298
299# since Lion (10.7) ASLR is on by default, but we use linker generated lists
300# in some host tools which is a problem then ... so disable ASLR for these
301# tools
302HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie")
303endif
304
305# Decide whether to build built-in, modular, or both.
306# Normally, just do built-in.
307
308KBUILD_MODULES :=
309KBUILD_BUILTIN := 1
310
311# If we have only "make modules", don't compile built-in objects.
312# When we're building modules with modversions, we need to consider
313# the built-in objects during the descend as well, in order to
314# make sure the checksums are up to date before we record them.
315
316ifeq ($(MAKECMDGOALS),modules)
317  KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
318endif
319
320# If we have "make <whatever> modules", compile modules
321# in addition to whatever we do anyway.
322# Just "make" or "make all" shall build modules as well
323
324# U-Boot does not need modules
325#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
326#  KBUILD_MODULES := 1
327#endif
328
329#ifeq ($(MAKECMDGOALS),)
330#  KBUILD_MODULES := 1
331#endif
332
333export KBUILD_MODULES KBUILD_BUILTIN
334export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
335
336# We need some generic definitions (do not try to remake the file).
337scripts/Kbuild.include: ;
338include scripts/Kbuild.include
339
340# Make variables (CC, etc...)
341
342AS		= $(CROSS_COMPILE)as
343# Always use GNU ld
344ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
345LD		= $(CROSS_COMPILE)ld.bfd
346else
347LD		= $(CROSS_COMPILE)ld
348endif
349CC		= $(CROSS_COMPILE)gcc
350CPP		= $(CC) -E
351AR		= $(CROSS_COMPILE)ar
352NM		= $(CROSS_COMPILE)nm
353LDR		= $(CROSS_COMPILE)ldr
354STRIP		= $(CROSS_COMPILE)strip
355OBJCOPY		= $(CROSS_COMPILE)objcopy
356OBJDUMP		= $(CROSS_COMPILE)objdump
357LEX		= flex
358YACC		= bison
359AWK		= awk
360PERL		= perl
361PYTHON		?= python
362PYTHON2		= python2
363PYTHON3		= python3
364DTC		?= $(objtree)/scripts/dtc/dtc
365CHECK		= sparse
366
367CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
368		  -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
369
370KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
371
372KBUILD_CFLAGS   := -Wall -Wstrict-prototypes \
373		   -Wno-format-security \
374		   -fno-builtin -ffreestanding $(CSTD_FLAG)
375KBUILD_CFLAGS	+= -fshort-wchar
376KBUILD_AFLAGS   := -D__ASSEMBLY__
377
378# Read UBOOTRELEASE from include/config/uboot.release (if it exists)
379UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
380UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
381
382export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
383export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
384export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
385export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
386export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3
387export HOSTCXX HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
388
389export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
390export KBUILD_CFLAGS KBUILD_AFLAGS
391
392# When compiling out-of-tree modules, put MODVERDIR in the module
393# tree rather than in the kernel tree. The kernel tree might
394# even be read-only.
395export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
396
397# Files to ignore in find ... statements
398
399export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o    \
400			  -name CVS -o -name .pc -o -name .hg -o -name .git \) \
401			  -prune -o
402export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
403			 --exclude CVS --exclude .pc --exclude .hg --exclude .git
404
405# ===========================================================================
406# Rules shared between *config targets and build targets
407
408# Basic helpers built in scripts/
409PHONY += scripts_basic
410scripts_basic:
411	$(Q)$(MAKE) $(build)=scripts/basic
412	$(Q)rm -f .tmp_quiet_recordmcount
413
414# To avoid any implicit rule to kick in, define an empty command.
415scripts/basic/%: scripts_basic ;
416
417PHONY += outputmakefile
418# outputmakefile generates a Makefile in the output directory, if using a
419# separate output directory. This allows convenient use of make in the
420# output directory.
421outputmakefile:
422ifneq ($(KBUILD_SRC),)
423	$(Q)ln -fsn $(srctree) source
424	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
425	    $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
426endif
427
428# To make sure we do not include .config for any of the *config targets
429# catch them early, and hand them over to scripts/kconfig/Makefile
430# It is allowed to specify more targets when calling make, including
431# mixing *config targets and build targets.
432# For example 'make oldconfig all'.
433# Detect when mixed targets is specified, and make a second invocation
434# of make so .config is not included in this case either (for *config).
435
436version_h := include/generated/version_autogenerated.h
437timestamp_h := include/generated/timestamp_autogenerated.h
438defaultenv_h := include/generated/defaultenv_autogenerated.h
439
440no-dot-config-targets := clean clobber mrproper distclean \
441			 help %docs check% coccicheck \
442			 ubootversion backup tests
443
444config-targets := 0
445mixed-targets  := 0
446dot-config     := 1
447
448ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
449	ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
450		dot-config := 0
451	endif
452endif
453
454ifeq ($(KBUILD_EXTMOD),)
455        ifneq ($(filter config %config,$(MAKECMDGOALS)),)
456                config-targets := 1
457                ifneq ($(words $(MAKECMDGOALS)),1)
458                        mixed-targets := 1
459                endif
460        endif
461endif
462
463ifeq ($(mixed-targets),1)
464# ===========================================================================
465# We're called with mixed targets (*config and build targets).
466# Handle them one by one.
467
468PHONY += $(MAKECMDGOALS) __build_one_by_one
469
470$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
471	@:
472
473__build_one_by_one:
474	$(Q)set -e; \
475	for i in $(MAKECMDGOALS); do \
476		$(MAKE) -f $(srctree)/Makefile $$i; \
477	done
478
479else
480ifeq ($(config-targets),1)
481# ===========================================================================
482# *config targets only - make sure prerequisites are updated, and descend
483# in scripts/kconfig to make the *config target
484
485KBUILD_DEFCONFIG := sandbox_defconfig
486export KBUILD_DEFCONFIG KBUILD_KCONFIG
487
488config: scripts_basic outputmakefile FORCE
489	$(Q)$(MAKE) $(build)=scripts/kconfig $@
490
491%config: scripts_basic outputmakefile FORCE
492	$(Q)$(MAKE) $(build)=scripts/kconfig $@
493
494else
495# ===========================================================================
496# Build targets only - this includes vmlinux, arch specific targets, clean
497# targets and others. In general all targets except *config targets.
498
499# Additional helpers built in scripts/
500# Carefully list dependencies so we do not try to build scripts twice
501# in parallel
502PHONY += scripts
503scripts: scripts_basic include/config/auto.conf
504	$(Q)$(MAKE) $(build)=$(@)
505
506ifeq ($(dot-config),1)
507# Read in config
508-include include/config/auto.conf
509
510# Read in dependencies to all Kconfig* files, make sure to run
511# oldconfig if changes are detected.
512-include include/config/auto.conf.cmd
513
514# To avoid any implicit rule to kick in, define an empty command
515$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
516
517# If .config is newer than include/config/auto.conf, someone tinkered
518# with it and forgot to run make oldconfig.
519# if auto.conf.cmd is missing then we are probably in a cleaned tree so
520# we execute the config step to be sure to catch updated Kconfig files
521include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
522	$(Q)$(MAKE) -f $(srctree)/Makefile syncconfig
523	@# If the following part fails, include/config/auto.conf should be
524	@# deleted so "make silentoldconfig" will be re-run on the next build.
525	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
526		{ rm -f include/config/auto.conf; false; }
527	@# include/config.h has been updated after "make silentoldconfig".
528	@# We need to touch include/config/auto.conf so it gets newer
529	@# than include/config.h.
530	@# Otherwise, 'make silentoldconfig' would be invoked twice.
531	$(Q)touch include/config/auto.conf
532
533u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg: include/config.h FORCE
534	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@)
535
536-include include/autoconf.mk
537-include include/autoconf.mk.dep
538
539# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
540# is up-to-date. When we switch to a different board configuration, old CONFIG
541# macros are still remaining in include/config/auto.conf. Without the following
542# gimmick, wrong config.mk would be included leading nasty warnings/errors.
543ifneq ($(wildcard $(KCONFIG_CONFIG)),)
544ifneq ($(wildcard include/config/auto.conf),)
545autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
546						include/config/auto.conf)
547ifeq ($(autoconf_is_old),)
548include config.mk
549include arch/$(ARCH)/Makefile
550endif
551endif
552endif
553
554# These are set by the arch-specific config.mk. Make sure they are exported
555# so they can be used when building an EFI application.
556export EFI_LDS		# Filename of EFI link script in arch/$(ARCH)/lib
557export EFI_CRT0		# Filename of EFI CRT0 in arch/$(ARCH)/lib
558export EFI_RELOC	# Filename of EFU relocation code in arch/$(ARCH)/lib
559export CFLAGS_EFI	# Compiler flags to add when building EFI app
560export CFLAGS_NON_EFI	# Compiler flags to remove when building EFI app
561export EFI_TARGET	# binutils target if EFI is natively supported
562
563# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
564# that (or fail if absent).  Otherwise, search for a linker script in a
565# standard location.
566
567ifndef LDSCRIPT
568	#LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
569	ifdef CONFIG_SYS_LDSCRIPT
570		# need to strip off double quotes
571		LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
572	endif
573endif
574
575# If there is no specified link script, we look in a number of places for it
576ifndef LDSCRIPT
577	ifeq ($(wildcard $(LDSCRIPT)),)
578		LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
579	endif
580	ifeq ($(wildcard $(LDSCRIPT)),)
581		LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
582	endif
583	ifeq ($(wildcard $(LDSCRIPT)),)
584		LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
585	endif
586endif
587
588else
589# Dummy target needed, because used as prerequisite
590include/config/auto.conf: ;
591endif # $(dot-config)
592
593#
594# Xtensa linker script cannot be preprocessed with -ansi because of
595# preprocessor operations on strings that don't make C identifiers.
596#
597ifeq ($(CONFIG_XTENSA),)
598LDPPFLAGS	+= -ansi
599endif
600
601ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
602KBUILD_CFLAGS	+= -Os
603else
604KBUILD_CFLAGS	+= -O2
605endif
606
607KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
608KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
609
610# change __FILE__ to the relative path from the srctree
611KBUILD_CFLAGS	+= $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
612
613KBUILD_CFLAGS	+= -g
614# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
615# option to the assembler.
616KBUILD_AFLAGS	+= -g
617
618# Report stack usage if supported
619# ARC tools based on GCC 7.1 has an issue with stack usage
620# with naked functions, see commit message for more details
621ifndef CONFIG_ARC
622ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
623	KBUILD_CFLAGS += -fstack-usage
624endif
625endif
626
627KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
628ifeq ($(cc-name),clang)
629KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
630KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
631KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
632KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
633KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
634endif
635
636# turn jbsr into jsr for m68k
637ifeq ($(ARCH),m68k)
638ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
639KBUILD_AFLAGS += -Wa,-gstabs,-S
640endif
641endif
642
643# Prohibit date/time macros, which would make the build non-deterministic
644KBUILD_CFLAGS   += $(call cc-option,-Werror=date-time)
645
646include scripts/Makefile.extrawarn
647
648# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
649KBUILD_CPPFLAGS += $(KCPPFLAGS)
650KBUILD_AFLAGS += $(KAFLAGS)
651KBUILD_CFLAGS += $(KCFLAGS)
652
653# Use UBOOTINCLUDE when you must reference the include/ directory.
654# Needed to be compatible with the O= option
655UBOOTINCLUDE    := \
656		-Iinclude \
657		$(if $(KBUILD_SRC), -I$(srctree)/include) \
658		$(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \
659			$(if $(CONFIG_HAS_THUMB2),, \
660				-I$(srctree)/arch/$(ARCH)/thumb1/include),) \
661		-I$(srctree)/arch/$(ARCH)/include \
662		-include $(srctree)/include/linux/kconfig.h
663
664NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
665CHECKFLAGS     += $(NOSTDINC_FLAGS)
666
667# FIX ME
668cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
669							$(NOSTDINC_FLAGS)
670c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
671
672#########################################################################
673# U-Boot objects....order is important (i.e. start must be first)
674
675HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
676
677libs-y += lib/
678libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
679libs-$(CONFIG_OF_EMBED) += dts/
680libs-y += fs/
681libs-y += net/
682libs-y += disk/
683libs-y += drivers/
684libs-y += drivers/dma/
685libs-y += drivers/gpio/
686libs-y += drivers/i2c/
687libs-y += drivers/mtd/
688libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/
689libs-y += drivers/mtd/onenand/
690libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
691libs-y += drivers/mtd/spi/
692libs-y += drivers/net/
693libs-y += drivers/net/phy/
694libs-y += drivers/pci/
695libs-y += drivers/power/ \
696	drivers/power/domain/ \
697	drivers/power/fuel_gauge/ \
698	drivers/power/mfd/ \
699	drivers/power/pmic/ \
700	drivers/power/battery/ \
701	drivers/power/regulator/
702libs-y += drivers/spi/
703libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
704libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
705libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
706libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/
707libs-y += drivers/serial/
708libs-y += drivers/usb/dwc3/
709libs-y += drivers/usb/common/
710libs-y += drivers/usb/emul/
711libs-y += drivers/usb/eth/
712libs-y += drivers/usb/gadget/
713libs-y += drivers/usb/gadget/udc/
714libs-y += drivers/usb/host/
715libs-y += drivers/usb/musb/
716libs-y += drivers/usb/musb-new/
717libs-y += drivers/usb/phy/
718libs-y += drivers/usb/ulpi/
719libs-y += cmd/
720libs-y += common/
721libs-y += env/
722libs-$(CONFIG_API) += api/
723libs-$(CONFIG_HAS_POST) += post/
724libs-y += test/
725libs-y += test/dm/
726libs-$(CONFIG_UT_ENV) += test/env/
727libs-$(CONFIG_UT_OVERLAY) += test/overlay/
728
729libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
730
731libs-y := $(sort $(libs-y))
732
733u-boot-dirs	:= $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
734
735u-boot-alldirs	:= $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
736
737libs-y		:= $(patsubst %/, %/built-in.o, $(libs-y))
738
739u-boot-init := $(head-y)
740u-boot-main := $(libs-y)
741
742
743# Add GCC lib
744ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
745PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
746else
747PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
748endif
749PLATFORM_LIBS += $(PLATFORM_LIBGCC)
750
751ifdef CONFIG_CC_COVERAGE
752KBUILD_CFLAGS += --coverage
753PLATFORM_LIBGCC += -lgcov
754endif
755
756export PLATFORM_LIBS
757export PLATFORM_LIBGCC
758
759# Special flags for CPP when processing the linker script.
760# Pass the version down so we can handle backwards compatibility
761# on the fly.
762LDPPFLAGS += \
763	-include $(srctree)/include/u-boot/u-boot.lds.h \
764	-DCPUDIR=$(CPUDIR) \
765	$(shell $(LD) --version | \
766	  sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
767
768#########################################################################
769#########################################################################
770
771ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
772BOARD_SIZE_CHECK = \
773	@actual=`wc -c $@ | awk '{print $$1}'`; \
774	limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
775	if test $$actual -gt $$limit; then \
776		echo "$@ exceeds file size limit:" >&2 ; \
777		echo "  limit:  $$limit bytes" >&2 ; \
778		echo "  actual: $$actual bytes" >&2 ; \
779		echo "  excess: $$((actual - limit)) bytes" >&2; \
780		exit 1; \
781	fi
782else
783BOARD_SIZE_CHECK =
784endif
785
786# Statically apply RELA-style relocations (currently arm64 only)
787# This is useful for arm64 where static relocation needs to be performed on
788# the raw binary, but certain simulators only accept an ELF file (but don't
789# do the relocation).
790ifneq ($(CONFIG_STATIC_RELA),)
791# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
792DO_STATIC_RELA = \
793	start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
794	end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
795	tools/relocate-rela $(2) $(3) $$start $$end
796else
797DO_STATIC_RELA =
798endif
799
800# Always append ALL so that arch config.mk's can add custom ones
801ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
802
803ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
804ifeq ($(CONFIG_SPL_FSL_PBL),y)
805ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
806else
807ifneq ($(CONFIG_SECURE_BOOT), y)
808# For Secure Boot The Image needs to be signed and Header must also
809# be included. So The image has to be built explicitly
810ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
811endif
812endif
813ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
814ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy)
815ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
816else
817ifeq ($(CONFIG_MX7)$(CONFIG_SECURE_BOOT), yy)
818ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
819else
820ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
821endif
822endif
823ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
824ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
825ifeq ($(CONFIG_SPL_FRAMEWORK),y)
826ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
827endif
828ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
829ifneq ($(CONFIG_SPL_TARGET),)
830ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
831endif
832ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
833ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
834ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
835
836ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),)
837ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
838endif
839
840# Build a combined spl + u-boot image for sunxi
841ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy)
842ALL-y += u-boot-sunxi-with-spl.bin
843endif
844
845# enable combined SPL/u-boot/dtb rules for tegra
846ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy)
847ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
848ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin
849endif
850
851# Add optional build target if defined in board/cpu/soc headers
852ifneq ($(CONFIG_BUILD_TARGET),)
853ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
854endif
855
856ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
857ALL-y += init_sp_bss_offset_check
858endif
859
860LDFLAGS_u-boot += $(LDFLAGS_FINAL)
861
862# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
863LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
864
865ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
866LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
867endif
868
869# Normally we fill empty space with 0xff
870quiet_cmd_objcopy = OBJCOPY $@
871cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
872	$(OBJCOPYFLAGS_$(@F)) $< $@
873
874# Provide a version which does not do this, for use by EFI
875quiet_cmd_zobjcopy = OBJCOPY $@
876cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
877
878quiet_cmd_efipayload = OBJCOPY $@
879cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
880
881MKIMAGEOUTPUT ?= /dev/null
882
883quiet_cmd_mkimage = MKIMAGE $@
884cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
885	>$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
886
887quiet_cmd_mkfitimage = MKIMAGE $@
888cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -E $@ \
889	>$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
890
891quiet_cmd_cat = CAT     $@
892cmd_cat = cat $(filter-out $(PHONY), $^) > $@
893
894append = cat $(filter-out $< $(PHONY), $^) >> $@
895
896quiet_cmd_pad_cat = CAT     $@
897cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
898
899cfg: u-boot.cfg
900
901quiet_cmd_cfgcheck = CFGCHK  $2
902cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
903		$(srctree)/scripts/config_whitelist.txt $(srctree)
904
905all:		$(ALL-y) cfg
906ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y)
907	@echo "===================== WARNING ======================"
908	@echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
909	@echo "(possibly in a subsequent patch in your series)"
910	@echo "before sending patches to the mailing list."
911	@echo "===================================================="
912endif
913	@# Check that this build does not use CONFIG options that we do not
914	@# know about unless they are in Kconfig. All the existing CONFIG
915	@# options are whitelisted, so new ones should not be added.
916	$(call cmd,cfgcheck,u-boot.cfg)
917
918PHONY += dtbs
919dtbs: dts/dt.dtb
920	@:
921dts/dt.dtb: u-boot
922	$(Q)$(MAKE) $(build)=dts dtbs
923
924quiet_cmd_copy = COPY    $@
925      cmd_copy = cp $< $@
926
927ifeq ($(CONFIG_MULTI_DTB_FIT),y)
928
929fit-dtb.blob: dts/dt.dtb FORCE
930	$(call if_changed,mkimage)
931
932MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
933	-a 0 -e 0 -E \
934	$(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
935
936u-boot-fit-dtb.bin: u-boot-nodtb.bin fit-dtb.blob
937	$(call if_changed,cat)
938
939u-boot.bin: u-boot-fit-dtb.bin FORCE
940	$(call if_changed,copy)
941else ifeq ($(CONFIG_OF_SEPARATE),y)
942u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
943	$(call if_changed,cat)
944
945u-boot.bin: u-boot-dtb.bin FORCE
946	$(call if_changed,copy)
947else
948u-boot.bin: u-boot-nodtb.bin FORCE
949	$(call if_changed,copy)
950endif
951
952%.imx: %.bin
953	$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
954
955%.vyb: %.imx
956	$(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
957
958quiet_cmd_copy = COPY    $@
959      cmd_copy = cp $< $@
960
961u-boot.dtb: dts/dt.dtb
962	$(call cmd,copy)
963
964OBJCOPYFLAGS_u-boot.hex := -O ihex
965
966OBJCOPYFLAGS_u-boot.srec := -O srec
967
968u-boot.hex u-boot.srec: u-boot FORCE
969	$(call if_changed,objcopy)
970
971OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
972
973u-boot-elf.srec: u-boot.elf FORCE
974	$(call if_changed,objcopy)
975
976OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
977
978spl/u-boot-spl.srec: spl/u-boot-spl FORCE
979	$(call if_changed,objcopy)
980
981OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
982		$(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec)
983
984binary_size_check: u-boot-nodtb.bin FORCE
985	@file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
986	map_size=$(shell cat u-boot.map | \
987		awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
988		| sed 's/0X//g' \
989		| bc); \
990	if [ "" != "$$map_size" ]; then \
991		if test $$map_size -ne $$file_size; then \
992			echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
993			echo "  but u-boot-nodtb.bin shows $$file_size" >&2 ; \
994			exit 1; \
995		fi \
996	fi
997
998ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
999ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
1000subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
1001else
1002subtract_sys_malloc_f_len = true
1003endif
1004# The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
1005# so low that the DTB could probably use 90%+ of the available space, for
1006# current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
1007# safe for now and tweak this later if space becomes tight.
1008# A rejected alternative would be to check that some absolute minimum stack
1009# space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
1010# deliberately build-specific, to take account of build-to-build stack usage
1011# differences due to different feature sets, there is no common absolute value
1012# to check against.
1013init_sp_bss_offset_check: u-boot.dtb FORCE
1014	@dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
1015	space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
1016	$(subtract_sys_malloc_f_len) ; \
1017	quarter_space=$$(($${space} / 4)) ; \
1018	if [ $${dtb_size} -gt $${quarter_space} ]; then \
1019		echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
1020		echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
1021		exit 1 ; \
1022	fi
1023endif
1024
1025u-boot-nodtb.bin: u-boot FORCE
1026	$(call if_changed,objcopy)
1027	$(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
1028	$(BOARD_SIZE_CHECK)
1029
1030u-boot.ldr:	u-boot
1031		$(CREATE_LDR_ENV)
1032		$(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
1033		$(BOARD_SIZE_CHECK)
1034
1035# binman
1036# ---------------------------------------------------------------------------
1037quiet_cmd_binman = BINMAN  $@
1038cmd_binman = $(srctree)/tools/binman/binman -d u-boot.dtb -O . \
1039		-I . -I $(srctree)/board/$(BOARDDIR) $<
1040
1041OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
1042
1043OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
1044
1045u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
1046	$(call if_changed,objcopy)
1047
1048#
1049# U-Boot entry point, needed for booting of full-blown U-Boot
1050# from the SPL U-Boot version.
1051#
1052ifndef CONFIG_SYS_UBOOT_START
1053CONFIG_SYS_UBOOT_START := 0
1054endif
1055
1056# Create a file containing the configuration options the image was built with
1057quiet_cmd_cpp_cfg = CFG     $@
1058cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
1059	-DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
1060
1061# Boards with more complex image requirments can provide an .its source file
1062# or a generator script
1063ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
1064U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
1065else
1066ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
1067U_BOOT_ITS := u-boot.its
1068$(U_BOOT_ITS): FORCE
1069	$(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
1070	$(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
1071endif
1072endif
1073
1074ifdef CONFIG_SPL_LOAD_FIT
1075MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1076	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1077	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1078	$(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
1079else
1080MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1081	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1082	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1083MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1084	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1085	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1086u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1087CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
1088endif
1089
1090MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1091
1092MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1093	-T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
1094
1095MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1096	-T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1097	$(if $(KEYDIR),-k $(KEYDIR))
1098
1099MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1100		-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1101
1102u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1103		$(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
1104	$(call if_changed,mkimage)
1105
1106u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE
1107	$(call if_changed,mkfitimage)
1108	$(BOARD_SIZE_CHECK)
1109
1110u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
1111	$(call if_changed,mkimage)
1112
1113u-boot.sha1:	u-boot.bin
1114		tools/ubsha1 u-boot.bin
1115
1116u-boot.dis:	u-boot
1117		$(OBJDUMP) -d $< > $@
1118
1119ifdef CONFIG_TPL
1120SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
1121else
1122SPL_PAYLOAD := u-boot.bin
1123endif
1124
1125OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1126				   --pad-to=$(CONFIG_SPL_PAD_TO)
1127u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
1128	$(call if_changed,pad_cat)
1129
1130MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1131
1132lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1133	$(call if_changed,mkimage)
1134
1135OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1136
1137lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1138	$(call if_changed,objcopy)
1139
1140OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1141
1142lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1143	$(call if_changed,objcopy)
1144
1145lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1146	$(call if_changed,cat)
1147
1148CLEAN_FILES += lpc32xx-*
1149
1150OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1151				   --pad-to=$(CONFIG_TPL_PAD_TO)
1152tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1153	$(call if_changed,pad_cat)
1154
1155SPL: spl/u-boot-spl.bin FORCE
1156	$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1157
1158u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
1159	$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1160
1161MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1162
1163u-boot.ubl: u-boot-with-spl.bin FORCE
1164	$(call if_changed,mkimage)
1165
1166MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1167	$(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1168	-T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1169spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1170	$(call if_changed,mkimage)
1171
1172OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1173u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1174	$(call if_changed,pad_cat)
1175
1176u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1177	$(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1178u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1179	$(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1180
1181# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1182# Both images are created using mkimage (crc etc), so that the ROM
1183# bootloader can check its integrity. Padding needs to be done to the
1184# SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1185# which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1186# The resulting image containing both U-Boot images is called u-boot.spr
1187MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1188	-a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1189spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1190	$(call if_changed,mkimage)
1191
1192OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1193			  --gap-fill=0xff
1194u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1195	$(call if_changed,pad_cat)
1196
1197ifneq ($(CONFIG_ARCH_SOCFPGA),)
1198quiet_cmd_socboot = SOCBOOT $@
1199cmd_socboot = cat	spl/u-boot-spl.sfp spl/u-boot-spl.sfp	\
1200			spl/u-boot-spl.sfp spl/u-boot-spl.sfp	\
1201			u-boot.img > $@ || rm -f $@
1202u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1203	$(call if_changed,socboot)
1204endif
1205
1206# x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1207# reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1208# the middle. This is handled by binman based on an image description in the
1209# board's device tree.
1210ifneq ($(CONFIG_X86_RESET_VECTOR),)
1211rom: u-boot.rom FORCE
1212
1213refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1214	$(call if_changed,copy)
1215
1216quiet_cmd_ldr = LD      $@
1217cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1218	       $(filter-out FORCE,$^) -o $@
1219
1220u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \
1221		$(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1222		$(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
1223	$(call if_changed,binman)
1224
1225OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
1226u-boot-x86-16bit.bin: u-boot FORCE
1227	$(call if_changed,objcopy)
1228endif
1229
1230ifneq ($(CONFIG_ARCH_SUNXI),)
1231ifeq ($(CONFIG_ARM64),)
1232u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
1233	$(call if_changed,binman)
1234else
1235u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE
1236	$(call if_changed,cat)
1237endif
1238endif
1239
1240ifneq ($(CONFIG_TEGRA),)
1241ifneq ($(CONFIG_BINMAN),)
1242u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin: \
1243		spl/u-boot-spl u-boot.bin FORCE
1244	$(call if_changed,binman)
1245else
1246OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1247u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1248	$(call if_changed,pad_cat)
1249
1250OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1251u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1252	$(call if_changed,pad_cat)
1253
1254u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1255	$(call if_changed,copy)
1256endif  # binman
1257endif
1258
1259OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1260u-boot-app.efi: u-boot FORCE
1261	$(call if_changed,zobjcopy)
1262
1263u-boot.bin.o: u-boot.bin FORCE
1264	$(call if_changed,efipayload)
1265
1266u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1267	$(call if_changed_dep,cpp_lds)
1268
1269# Rule to link the EFI payload which contains a stub and a U-Boot binary
1270quiet_cmd_u-boot_payload ?= LD      $@
1271      cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1272      -T u-boot-payload.lds arch/x86/cpu/call32.o \
1273      lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1274      $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1275
1276u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1277	$(call if_changed,u-boot_payload)
1278
1279OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1280u-boot-payload.efi: u-boot-payload FORCE
1281	$(call if_changed,zobjcopy)
1282
1283u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1284	$(call if_changed,cat)
1285
1286#Add a target to create boot binary having SPL binary in PBI format
1287#concatenated with u-boot binary. It is need by PowerPC SoC having
1288#internal SRAM <= 512KB.
1289MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1290		-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1291		-A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1292
1293spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1294	$(call if_changed,mkimage)
1295
1296ifeq ($(ARCH),arm)
1297UBOOT_BINLOAD := u-boot.img
1298else
1299UBOOT_BINLOAD := u-boot.bin
1300endif
1301
1302OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1303			  --gap-fill=0xff
1304
1305u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1306	$(call if_changed,pad_cat)
1307
1308# PPC4xx needs the SPL at the end of the image, since the reset vector
1309# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1310# and need to introduce a new build target with the full blown U-Boot
1311# at the start padded up to the start of the SPL image. And then concat
1312# the SPL image to the end.
1313
1314OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1315	--pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1316u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1317	$(call if_changed,pad_cat)
1318
1319# Create a new ELF from a raw binary file.
1320ifndef PLATFORM_ELFENTRY
1321  PLATFORM_ELFENTRY = "_start"
1322endif
1323quiet_cmd_u-boot-elf ?= LD      $@
1324	cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1325	--defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1326	-Ttext=$(CONFIG_SYS_TEXT_BASE)
1327u-boot.elf: u-boot.bin
1328	$(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1329	$(call if_changed,u-boot-elf)
1330
1331ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1332
1333# Rule to link u-boot
1334# May be overridden by arch/$(ARCH)/config.mk
1335quiet_cmd_u-boot__ ?= LD      $@
1336      cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1337      -T u-boot.lds $(u-boot-init)                             \
1338      --start-group $(u-boot-main) --end-group                 \
1339      $(PLATFORM_LIBS) -Map u-boot.map;                        \
1340      $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1341
1342quiet_cmd_smap = GEN     common/system_map.o
1343cmd_smap = \
1344	smap=`$(call SYSTEM_MAP,u-boot) | \
1345		awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1346	$(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1347		-c $(srctree)/common/system_map.c -o common/system_map.o
1348
1349u-boot:	$(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1350	+$(call if_changed,u-boot__)
1351ifeq ($(CONFIG_KALLSYMS),y)
1352	$(call cmd,smap)
1353	$(call cmd,u-boot__) common/system_map.o
1354endif
1355
1356ifeq ($(CONFIG_RISCV),y)
1357	@tools/prelink-riscv $@ 0
1358endif
1359
1360quiet_cmd_sym ?= SYM     $@
1361      cmd_sym ?= $(OBJDUMP) -t $< > $@
1362u-boot.sym: u-boot FORCE
1363	$(call if_changed,sym)
1364
1365# The actual objects are generated when descending,
1366# make sure no implicit rule kicks in
1367$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1368
1369# Handle descending into subdirectories listed in $(vmlinux-dirs)
1370# Preset locale variables to speed up the build process. Limit locale
1371# tweaks to this spot to avoid wrong language settings when running
1372# make menuconfig etc.
1373# Error messages still appears in the original language
1374
1375PHONY += $(u-boot-dirs)
1376$(u-boot-dirs): prepare scripts
1377	$(Q)$(MAKE) $(build)=$@
1378
1379tools: prepare
1380# The "tools" are needed early
1381$(filter-out tools, $(u-boot-dirs)): tools
1382# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1383# is "yes"), so compile examples after U-Boot is compiled.
1384examples: $(filter-out examples, $(u-boot-dirs))
1385
1386define filechk_uboot.release
1387	echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1388endef
1389
1390# Store (new) UBOOTRELEASE string in include/config/uboot.release
1391include/config/uboot.release: include/config/auto.conf FORCE
1392	$(call filechk,uboot.release)
1393
1394
1395# Things we need to do before we recursively start building the kernel
1396# or the modules are listed in "prepare".
1397# A multi level approach is used. prepareN is processed before prepareN-1.
1398# archprepare is used in arch Makefiles and when processed asm symlink,
1399# version.h and scripts_basic is processed / created.
1400
1401# Listed in dependency order
1402PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1403
1404# prepare3 is used to check if we are building in a separate output directory,
1405# and if so do:
1406# 1) Check that make has not been executed in the kernel src $(srctree)
1407prepare3: include/config/uboot.release
1408ifneq ($(KBUILD_SRC),)
1409	@$(kecho) '  Using $(srctree) as source for U-Boot'
1410	$(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1411		echo >&2 "  $(srctree) is not clean, please run 'make mrproper'"; \
1412		echo >&2 "  in the '$(srctree)' directory.";\
1413		/bin/false; \
1414	fi;
1415endif
1416
1417# prepare2 creates a makefile if using a separate output directory
1418prepare2: prepare3 outputmakefile
1419
1420prepare1: prepare2 $(version_h) $(timestamp_h) \
1421                   include/config/auto.conf
1422ifeq ($(wildcard $(LDSCRIPT)),)
1423	@echo >&2 "  Could not find linker script."
1424	@/bin/false
1425endif
1426
1427ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
1428prepare1: $(defaultenv_h)
1429endif
1430
1431archprepare: prepare1 scripts_basic
1432
1433prepare0: archprepare FORCE
1434	$(Q)$(MAKE) $(build)=.
1435
1436# All the preparing..
1437prepare: prepare0
1438
1439# Generate some files
1440# ---------------------------------------------------------------------------
1441
1442define filechk_version.h
1443	(echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1444	echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1445	echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1446	echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1447endef
1448
1449# The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1450# The BSD date on the other hand behaves different and would produce errors
1451# with the misused '-d' switch.  Respect that and search a working date with
1452# well known pre- and suffixes for the GNU variant of date.
1453define filechk_timestamp.h
1454	(if test -n "$${SOURCE_DATE_EPOCH}"; then \
1455		SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1456		DATE=""; \
1457		for date in gdate date.gnu date; do \
1458			$${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1459		done; \
1460		if test -n "$${DATE}"; then \
1461			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1462			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1463			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1464			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1465			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1466		else \
1467			return 42; \
1468		fi; \
1469	else \
1470		LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1471		LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1472		LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1473		LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1474		LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1475	fi)
1476endef
1477
1478define filechk_defaultenv.h
1479	(grep -v '^#' | \
1480	 grep -v '^$$' | \
1481	 tr '\n' '\0' | \
1482	 sed -e 's/\\\x0/\n/' | \
1483	 xxd -i ; echo ", 0x00" ; )
1484endef
1485
1486$(version_h): include/config/uboot.release FORCE
1487	$(call filechk,version.h)
1488
1489$(timestamp_h): $(srctree)/Makefile FORCE
1490	$(call filechk,timestamp.h)
1491
1492$(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
1493	$(call filechk,defaultenv.h)
1494
1495# ---------------------------------------------------------------------------
1496quiet_cmd_cpp_lds = LDS     $@
1497cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1498		-D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
1499
1500u-boot.lds: $(LDSCRIPT) prepare FORCE
1501	$(call if_changed_dep,cpp_lds)
1502
1503spl/u-boot-spl.bin: spl/u-boot-spl
1504	@:
1505spl/u-boot-spl: tools prepare \
1506		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
1507		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
1508	$(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1509
1510spl/sunxi-spl.bin: spl/u-boot-spl
1511	@:
1512
1513spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1514	@:
1515
1516spl/u-boot-spl.sfp: spl/u-boot-spl
1517	@:
1518
1519spl/boot.bin: spl/u-boot-spl
1520	@:
1521
1522tpl/u-boot-tpl.bin: tools prepare \
1523		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1524	$(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1525
1526TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1527
1528FIND := find
1529FINDFLAGS := -L
1530
1531tags ctags:
1532		ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1533						-name '*.[chS]' -print`
1534		ln -s ctags tags
1535
1536etags:
1537		etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1538						-name '*.[chS]' -print`
1539cscope:
1540		$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1541						cscope.files
1542		cscope -b -q -k
1543
1544SYSTEM_MAP = \
1545		$(NM) $1 | \
1546		grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1547		LC_ALL=C sort
1548System.map:	u-boot
1549		@$(call SYSTEM_MAP,$<) > $@
1550
1551#########################################################################
1552
1553# ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1554# R_AARCH64_RELATIVE (64-bit).
1555checkarmreloc: u-boot
1556	@RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1557		grep R_A | sort -u`"; \
1558	if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1559		 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1560		echo "$< contains unexpected relocations: $$RELOC"; \
1561		false; \
1562	fi
1563
1564envtools: scripts_basic $(version_h) $(timestamp_h)
1565	$(Q)$(MAKE) $(build)=tools/env
1566
1567tools-only: scripts_basic $(version_h) $(timestamp_h)
1568	$(Q)$(MAKE) $(build)=tools
1569
1570tools-all: export HOST_TOOLS_ALL=y
1571tools-all: envtools tools ;
1572
1573cross_tools: export CROSS_BUILD_TOOLS=y
1574cross_tools: tools ;
1575
1576.PHONY : CHANGELOG
1577CHANGELOG:
1578	git log --no-merges U-Boot-1_1_5.. | \
1579	unexpand -a | sed -e 's/\s\s*$$//' > $@
1580
1581#########################################################################
1582
1583###
1584# Cleaning is done on three levels.
1585# make clean     Delete most generated files
1586#                Leave enough to build external modules
1587# make mrproper  Delete the current configuration, and all generated files
1588# make distclean Remove editor backup files, patch leftover files and the like
1589
1590# Directories & files removed with 'make clean'
1591CLEAN_DIRS  += $(MODVERDIR) \
1592	       $(foreach d, spl tpl, $(patsubst %,$d/%, \
1593			$(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1594
1595CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
1596	       boot* u-boot* MLO* SPL System.map fit-dtb.blob
1597
1598# Directories & files removed with 'make mrproper'
1599MRPROPER_DIRS  += include/config include/generated spl tpl \
1600		  .tmp_objdiff
1601MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1602		  ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
1603
1604# clean - Delete most, but leave enough to build external modules
1605#
1606clean: rm-dirs  := $(CLEAN_DIRS)
1607clean: rm-files := $(CLEAN_FILES)
1608
1609clean-dirs	:= $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1610
1611clean-dirs      := $(addprefix _clean_, $(clean-dirs) doc/DocBook)
1612
1613PHONY += $(clean-dirs) clean archclean
1614$(clean-dirs):
1615	$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1616
1617# TODO: Do not use *.cfgtmp
1618clean: $(clean-dirs)
1619	$(call cmd,rmdirs)
1620	$(call cmd,rmfiles)
1621	@find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1622		\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1623		-o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \
1624		-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1625		-o -name '*.lex.c' -o -name '*.tab.[ch]' \
1626		-o -name '*.symtypes' -o -name 'modules.order' \
1627		-o -name modules.builtin -o -name '.tmp_*.o.*' \
1628		-o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
1629		-o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
1630		-type f -print | xargs rm -f
1631
1632# mrproper - Delete all generated files, including .config
1633#
1634mrproper: rm-dirs  := $(wildcard $(MRPROPER_DIRS))
1635mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1636mrproper-dirs      := $(addprefix _mrproper_,scripts)
1637
1638PHONY += $(mrproper-dirs) mrproper archmrproper
1639$(mrproper-dirs):
1640	$(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1641
1642mrproper: clean $(mrproper-dirs)
1643	$(call cmd,rmdirs)
1644	$(call cmd,rmfiles)
1645	@rm -f arch/*/include/asm/arch
1646
1647# distclean
1648#
1649PHONY += distclean
1650
1651distclean: mrproper
1652	@find $(srctree) $(RCS_FIND_IGNORE) \
1653		\( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1654		-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1655		-o -name '.*.rej' -o -name '*%' -o -name 'core' \
1656		-o -name '*.pyc' \) \
1657		-type f -print | xargs rm -f
1658	@rm -f boards.cfg
1659
1660backup:
1661	F=`basename $(srctree)` ; cd .. ; \
1662	gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1663
1664help:
1665	@echo  'Cleaning targets:'
1666	@echo  '  clean		  - Remove most generated files but keep the config'
1667	@echo  '  mrproper	  - Remove all generated files + config + various backup files'
1668	@echo  '  distclean	  - mrproper + remove editor backup and patch files'
1669	@echo  ''
1670	@echo  'Configuration targets:'
1671	@$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1672	@echo  ''
1673	@echo  'Other generic targets:'
1674	@echo  '  all		  - Build all necessary images depending on configuration'
1675	@echo  '  tests		  - Build U-Boot for sandbox and run tests'
1676	@echo  '* u-boot	  - Build the bare u-boot'
1677	@echo  '  dir/            - Build all files in dir and below'
1678	@echo  '  dir/file.[oisS] - Build specified target only'
1679	@echo  '  dir/file.lst    - Build specified mixed source/assembly target only'
1680	@echo  '                    (requires a recent binutils and recent build (System.map))'
1681	@echo  '  tags/ctags	  - Generate ctags file for editors'
1682	@echo  '  etags		  - Generate etags file for editors'
1683	@echo  '  cscope	  - Generate cscope index'
1684	@echo  '  ubootrelease	  - Output the release version string (use with make -s)'
1685	@echo  '  ubootversion	  - Output the version stored in Makefile (use with make -s)'
1686	@echo  "  cfg		  - Don't build, just create the .cfg files"
1687	@echo  "  envtools	  - Build only the target-side environment tools"
1688	@echo  ''
1689	@echo  'Static analysers'
1690	@echo  '  checkstack      - Generate a list of stack hogs'
1691	@echo  '  coccicheck      - Execute static code analysis with Coccinelle'
1692	@echo  ''
1693	@echo  'Documentation targets:'
1694	@$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp
1695	@echo  ''
1696	@echo  '  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1697	@echo  '  make V=2   [targets] 2 => give reason for rebuild of target'
1698	@echo  '  make O=dir [targets] Locate all output files in "dir", including .config'
1699	@echo  '  make C=1   [targets] Check all c source with $$CHECK (sparse by default)'
1700	@echo  '  make C=2   [targets] Force check of all c source with $$CHECK'
1701	@echo  '  make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1702	@echo  '  make W=n   [targets] Enable extra gcc checks, n=1,2,3 where'
1703	@echo  '		1: warnings which may be relevant and do not occur too often'
1704	@echo  '		2: warnings which occur quite often but may still be relevant'
1705	@echo  '		3: more obscure warnings, can most likely be ignored'
1706	@echo  '		Multiple levels can be combined with W=12 or W=123'
1707	@echo  ''
1708	@echo  'Execute "make" or "make all" to build all targets marked with [*] '
1709	@echo  'For further info see the ./README file'
1710
1711tests:
1712	$(srctree)/test/run
1713
1714# Documentation targets
1715# ---------------------------------------------------------------------------
1716%docs: scripts_basic FORCE
1717	$(Q)$(MAKE) $(build)=scripts build_docproc
1718	$(Q)$(MAKE) $(build)=doc/DocBook $@
1719
1720endif #ifeq ($(config-targets),1)
1721endif #ifeq ($(mixed-targets),1)
1722
1723PHONY += checkstack ubootrelease ubootversion
1724
1725checkstack:
1726	$(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1727	$(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1728
1729ubootrelease:
1730	@echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1731
1732ubootversion:
1733	@echo $(UBOOTVERSION)
1734
1735# Single targets
1736# ---------------------------------------------------------------------------
1737# Single targets are compatible with:
1738# - build with mixed source and output
1739# - build with separate output dir 'make O=...'
1740# - external modules
1741#
1742#  target-dir => where to store outputfile
1743#  build-dir  => directory in kernel source tree to use
1744
1745ifeq ($(KBUILD_EXTMOD),)
1746        build-dir  = $(patsubst %/,%,$(dir $@))
1747        target-dir = $(dir $@)
1748else
1749        zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1750        build-dir  = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1751        target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1752endif
1753
1754%.s: %.c prepare scripts FORCE
1755	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1756%.i: %.c prepare scripts FORCE
1757	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1758%.o: %.c prepare scripts FORCE
1759	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1760%.lst: %.c prepare scripts FORCE
1761	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1762%.s: %.S prepare scripts FORCE
1763	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1764%.o: %.S prepare scripts FORCE
1765	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1766%.symtypes: %.c prepare scripts FORCE
1767	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1768
1769# Modules
1770/: prepare scripts FORCE
1771	$(cmd_crmodverdir)
1772	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1773	$(build)=$(build-dir)
1774%/: prepare scripts FORCE
1775	$(cmd_crmodverdir)
1776	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1777	$(build)=$(build-dir)
1778%.ko: prepare scripts FORCE
1779	$(cmd_crmodverdir)
1780	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1)   \
1781	$(build)=$(build-dir) $(@:.ko=.o)
1782	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1783
1784# Consistency checks
1785# ---------------------------------------------------------------------------
1786
1787PHONY += coccicheck
1788
1789coccicheck:
1790	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
1791
1792# FIXME Should go into a make.lib or something
1793# ===========================================================================
1794
1795quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN   $(wildcard $(rm-dirs)))
1796      cmd_rmdirs = rm -rf $(rm-dirs)
1797
1798quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(rm-files)))
1799      cmd_rmfiles = rm -f $(rm-files)
1800
1801# read all saved command lines
1802
1803targets := $(wildcard $(sort $(targets)))
1804cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1805
1806ifneq ($(cmd_files),)
1807  $(cmd_files): ;	# Do not try to update included dependency files
1808  include $(cmd_files)
1809endif
1810
1811endif	# skip-makefile
1812
1813PHONY += FORCE
1814FORCE:
1815
1816# Declare the contents of the .PHONY variable as phony.  We keep that
1817# information in a variable so we can use it in if_changed and friends.
1818.PHONY: $(PHONY)
1819