xref: /openbmc/u-boot/Makefile (revision ab9e12f6)
1#
2# SPDX-License-Identifier:	GPL-2.0+
3#
4
5VERSION = 2018
6PATCHLEVEL = 05
7SUBLEVEL =
8EXTRAVERSION = -rc2
9NAME =
10
11# *DOCUMENTATION*
12# To see a list of typical targets execute "make help"
13# More info can be located in ./README
14# Comments in this file are targeted only to the developer, do not
15# expect to learn how to build the kernel reading this file.
16
17# o Do not use make's built-in rules and variables
18#   (this increases performance and avoids hard-to-debug behaviour);
19# o Look for make include files relative to root of kernel src
20MAKEFLAGS += -rR --include-dir=$(CURDIR)
21
22# Avoid funny character set dependencies
23unexport LC_ALL
24LC_COLLATE=C
25LC_NUMERIC=C
26export LC_COLLATE LC_NUMERIC
27
28# Avoid interference with shell env settings
29unexport GREP_OPTIONS
30
31# We are using a recursive build, so we need to do a little thinking
32# to get the ordering right.
33#
34# Most importantly: sub-Makefiles should only ever modify files in
35# their own directory. If in some directory we have a dependency on
36# a file in another dir (which doesn't happen often, but it's often
37# unavoidable when linking the built-in.o targets which finally
38# turn into vmlinux), we will call a sub make in that other dir, and
39# after that we are sure that everything which is in that other dir
40# is now up to date.
41#
42# The only cases where we need to modify files which have global
43# effects are thus separated out and done before the recursive
44# descending is started. They are now explicitly listed as the
45# prepare rule.
46
47# Beautify output
48# ---------------------------------------------------------------------------
49#
50# Normally, we echo the whole command before executing it. By making
51# that echo $($(quiet)$(cmd)), we now have the possibility to set
52# $(quiet) to choose other forms of output instead, e.g.
53#
54#         quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
55#         cmd_cc_o_c       = $(CC) $(c_flags) -c -o $@ $<
56#
57# If $(quiet) is empty, the whole command will be printed.
58# If it is set to "quiet_", only the short version will be printed.
59# If it is set to "silent_", nothing will be printed at all, since
60# the variable $(silent_cmd_cc_o_c) doesn't exist.
61#
62# A simple variant is to prefix commands with $(Q) - that's useful
63# for commands that shall be hidden in non-verbose mode.
64#
65#	$(Q)ln $@ :<
66#
67# If KBUILD_VERBOSE equals 0 then the above command will be hidden.
68# If KBUILD_VERBOSE equals 1 then the above command is displayed.
69#
70# To put more focus on warnings, be less verbose as default
71# Use 'make V=1' to see the full commands
72
73ifeq ("$(origin V)", "command line")
74  KBUILD_VERBOSE = $(V)
75endif
76ifndef KBUILD_VERBOSE
77  KBUILD_VERBOSE = 0
78endif
79
80ifeq ($(KBUILD_VERBOSE),1)
81  quiet =
82  Q =
83else
84  quiet=quiet_
85  Q = @
86endif
87
88# If the user is running make -s (silent mode), suppress echoing of
89# commands
90
91ifneq ($(filter 4.%,$(MAKE_VERSION)),)	# make-4
92ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
93  quiet=silent_
94endif
95else					# make-3.8x
96ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
97  quiet=silent_
98endif
99endif
100
101export quiet Q KBUILD_VERBOSE
102
103# kbuild supports saving output files in a separate directory.
104# To locate output files in a separate directory two syntaxes are supported.
105# In both cases the working directory must be the root of the kernel src.
106# 1) O=
107# Use "make O=dir/to/store/output/files/"
108#
109# 2) Set KBUILD_OUTPUT
110# Set the environment variable KBUILD_OUTPUT to point to the directory
111# where the output files shall be placed.
112# export KBUILD_OUTPUT=dir/to/store/output/files/
113# make
114#
115# The O= assignment takes precedence over the KBUILD_OUTPUT environment
116# variable.
117
118# KBUILD_SRC is set on invocation of make in OBJ directory
119# KBUILD_SRC is not intended to be used by the regular user (for now)
120ifeq ($(KBUILD_SRC),)
121
122# OK, Make called in directory where kernel src resides
123# Do we want to locate output files in a separate directory?
124ifeq ("$(origin O)", "command line")
125  KBUILD_OUTPUT := $(O)
126endif
127
128# That's our default target when none is given on the command line
129PHONY := _all
130_all:
131
132# Cancel implicit rules on top Makefile
133$(CURDIR)/Makefile Makefile: ;
134
135ifneq ($(KBUILD_OUTPUT),)
136# Invoke a second make in the output directory, passing relevant variables
137# check that the output directory actually exists
138saved-output := $(KBUILD_OUTPUT)
139KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
140								&& /bin/pwd)
141$(if $(KBUILD_OUTPUT),, \
142     $(error failed to create output directory "$(saved-output)"))
143
144PHONY += $(MAKECMDGOALS) sub-make
145
146$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
147	@:
148
149sub-make: FORCE
150	$(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
151	-f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
152
153# Leave processing to above invocation of make
154skip-makefile := 1
155endif # ifneq ($(KBUILD_OUTPUT),)
156endif # ifeq ($(KBUILD_SRC),)
157
158# We process the rest of the Makefile if this is the final invocation of make
159ifeq ($(skip-makefile),)
160
161# Do not print "Entering directory ...",
162# but we want to display it when entering to the output directory
163# so that IDEs/editors are able to understand relative filenames.
164MAKEFLAGS += --no-print-directory
165
166# Call a source code checker (by default, "sparse") as part of the
167# C compilation.
168#
169# Use 'make C=1' to enable checking of only re-compiled files.
170# Use 'make C=2' to enable checking of *all* source files, regardless
171# of whether they are re-compiled or not.
172#
173# See the file "Documentation/sparse.txt" for more details, including
174# where to get the "sparse" utility.
175
176ifeq ("$(origin C)", "command line")
177  KBUILD_CHECKSRC = $(C)
178endif
179ifndef KBUILD_CHECKSRC
180  KBUILD_CHECKSRC = 0
181endif
182
183# Use make M=dir to specify directory of external module to build
184# Old syntax make ... SUBDIRS=$PWD is still supported
185# Setting the environment variable KBUILD_EXTMOD take precedence
186ifdef SUBDIRS
187  KBUILD_EXTMOD ?= $(SUBDIRS)
188endif
189
190ifeq ("$(origin M)", "command line")
191  KBUILD_EXTMOD := $(M)
192endif
193
194# If building an external module we do not care about the all: rule
195# but instead _all depend on modules
196PHONY += all
197ifeq ($(KBUILD_EXTMOD),)
198_all: all
199else
200_all: modules
201endif
202
203ifeq ($(KBUILD_SRC),)
204        # building in the source tree
205        srctree := .
206else
207        ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
208                # building in a subdirectory of the source tree
209                srctree := ..
210        else
211                srctree := $(KBUILD_SRC)
212        endif
213endif
214objtree		:= .
215src		:= $(srctree)
216obj		:= $(objtree)
217
218VPATH		:= $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
219
220export srctree objtree VPATH
221
222# Make sure CDPATH settings don't interfere
223unexport CDPATH
224
225#########################################################################
226
227HOSTARCH := $(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
237HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
238	    sed -e 's/\(cygwin\).*/cygwin/')
239
240export	HOSTARCH HOSTOS
241
242#########################################################################
243
244# set default to nothing for native builds
245ifeq ($(HOSTARCH),$(ARCH))
246CROSS_COMPILE ?=
247endif
248
249KCONFIG_CONFIG	?= .config
250export KCONFIG_CONFIG
251
252# SHELL used by kbuild
253CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
254	  else if [ -x /bin/bash ]; then echo /bin/bash; \
255	  else echo sh; fi ; fi)
256
257HOSTCC       = cc
258HOSTCXX      = c++
259HOSTCFLAGS   = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
260		$(if $(CONFIG_TOOLS_DEBUG),-g)
261HOSTCXXFLAGS = -O2
262
263ifeq ($(HOSTOS),cygwin)
264HOSTCFLAGS	+= -ansi
265endif
266
267# Mac OS X / Darwin's C preprocessor is Apple specific.  It
268# generates numerous errors and warnings.  We want to bypass it
269# and use GNU C's cpp.	To do this we pass the -traditional-cpp
270# option to the compiler.  Note that the -traditional-cpp flag
271# DOES NOT have the same semantics as GNU C's flag, all it does
272# is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
273#
274# Apple's linker is similar, thanks to the new 2 stage linking
275# multiple symbol definitions are treated as errors, hence the
276# -multiply_defined suppress option to turn off this error.
277#
278ifeq ($(HOSTOS),darwin)
279# get major and minor product version (e.g. '10' and '6' for Snow Leopard)
280DARWIN_MAJOR_VERSION	= $(shell sw_vers -productVersion | cut -f 1 -d '.')
281DARWIN_MINOR_VERSION	= $(shell sw_vers -productVersion | cut -f 2 -d '.')
282
283os_x_before	= $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
284	$(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
285
286# Snow Leopards build environment has no longer restrictions as described above
287HOSTCC       = $(call os_x_before, 10, 5, "cc", "gcc")
288HOSTCFLAGS  += $(call os_x_before, 10, 4, "-traditional-cpp")
289HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
290
291# since Lion (10.7) ASLR is on by default, but we use linker generated lists
292# in some host tools which is a problem then ... so disable ASLR for these
293# tools
294HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie")
295endif
296
297# Decide whether to build built-in, modular, or both.
298# Normally, just do built-in.
299
300KBUILD_MODULES :=
301KBUILD_BUILTIN := 1
302
303# If we have only "make modules", don't compile built-in objects.
304# When we're building modules with modversions, we need to consider
305# the built-in objects during the descend as well, in order to
306# make sure the checksums are up to date before we record them.
307
308ifeq ($(MAKECMDGOALS),modules)
309  KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
310endif
311
312# If we have "make <whatever> modules", compile modules
313# in addition to whatever we do anyway.
314# Just "make" or "make all" shall build modules as well
315
316# U-Boot does not need modules
317#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
318#  KBUILD_MODULES := 1
319#endif
320
321#ifeq ($(MAKECMDGOALS),)
322#  KBUILD_MODULES := 1
323#endif
324
325export KBUILD_MODULES KBUILD_BUILTIN
326export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
327
328# We need some generic definitions (do not try to remake the file).
329scripts/Kbuild.include: ;
330include scripts/Kbuild.include
331
332# Make variables (CC, etc...)
333
334AS		= $(CROSS_COMPILE)as
335# Always use GNU ld
336ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
337LD		= $(CROSS_COMPILE)ld.bfd
338else
339LD		= $(CROSS_COMPILE)ld
340endif
341CC		= $(CROSS_COMPILE)gcc
342CPP		= $(CC) -E
343AR		= $(CROSS_COMPILE)ar
344NM		= $(CROSS_COMPILE)nm
345LDR		= $(CROSS_COMPILE)ldr
346STRIP		= $(CROSS_COMPILE)strip
347OBJCOPY		= $(CROSS_COMPILE)objcopy
348OBJDUMP		= $(CROSS_COMPILE)objdump
349AWK		= awk
350PERL		= perl
351PYTHON		?= python
352DTC		?= $(objtree)/scripts/dtc/dtc
353CHECK		= sparse
354
355CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
356		  -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
357
358KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
359
360KBUILD_CFLAGS   := -Wall -Wstrict-prototypes \
361		   -Wno-format-security \
362		   -fno-builtin -ffreestanding
363KBUILD_CFLAGS	+= -fshort-wchar
364KBUILD_AFLAGS   := -D__ASSEMBLY__
365
366# Read UBOOTRELEASE from include/config/uboot.release (if it exists)
367UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
368UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
369
370export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
371export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
372export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
373export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
374export MAKE AWK PERL PYTHON
375export HOSTCXX HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
376
377export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
378export KBUILD_CFLAGS KBUILD_AFLAGS
379
380# When compiling out-of-tree modules, put MODVERDIR in the module
381# tree rather than in the kernel tree. The kernel tree might
382# even be read-only.
383export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
384
385# Files to ignore in find ... statements
386
387export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o    \
388			  -name CVS -o -name .pc -o -name .hg -o -name .git \) \
389			  -prune -o
390export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
391			 --exclude CVS --exclude .pc --exclude .hg --exclude .git
392
393# ===========================================================================
394# Rules shared between *config targets and build targets
395
396# Basic helpers built in scripts/
397PHONY += scripts_basic
398scripts_basic:
399	$(Q)$(MAKE) $(build)=scripts/basic
400	$(Q)rm -f .tmp_quiet_recordmcount
401
402# To avoid any implicit rule to kick in, define an empty command.
403scripts/basic/%: scripts_basic ;
404
405PHONY += outputmakefile
406# outputmakefile generates a Makefile in the output directory, if using a
407# separate output directory. This allows convenient use of make in the
408# output directory.
409outputmakefile:
410ifneq ($(KBUILD_SRC),)
411	$(Q)ln -fsn $(srctree) source
412	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
413	    $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
414endif
415
416# To make sure we do not include .config for any of the *config targets
417# catch them early, and hand them over to scripts/kconfig/Makefile
418# It is allowed to specify more targets when calling make, including
419# mixing *config targets and build targets.
420# For example 'make oldconfig all'.
421# Detect when mixed targets is specified, and make a second invocation
422# of make so .config is not included in this case either (for *config).
423
424version_h := include/generated/version_autogenerated.h
425timestamp_h := include/generated/timestamp_autogenerated.h
426defaultenv_h := include/generated/defaultenv_autogenerated.h
427
428no-dot-config-targets := clean clobber mrproper distclean \
429			 help %docs check% coccicheck \
430			 ubootversion backup tests
431
432config-targets := 0
433mixed-targets  := 0
434dot-config     := 1
435
436ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
437	ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
438		dot-config := 0
439	endif
440endif
441
442ifeq ($(KBUILD_EXTMOD),)
443        ifneq ($(filter config %config,$(MAKECMDGOALS)),)
444                config-targets := 1
445                ifneq ($(words $(MAKECMDGOALS)),1)
446                        mixed-targets := 1
447                endif
448        endif
449endif
450
451ifeq ($(mixed-targets),1)
452# ===========================================================================
453# We're called with mixed targets (*config and build targets).
454# Handle them one by one.
455
456PHONY += $(MAKECMDGOALS) __build_one_by_one
457
458$(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
467else
468ifeq ($(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
473KBUILD_DEFCONFIG := sandbox_defconfig
474export KBUILD_DEFCONFIG KBUILD_KCONFIG
475
476config: scripts_basic outputmakefile FORCE
477	$(Q)$(MAKE) $(build)=scripts/kconfig $@
478
479%config: scripts_basic outputmakefile FORCE
480	$(Q)$(MAKE) $(build)=scripts/kconfig $@
481
482else
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# Additional helpers built in scripts/
488# Carefully list dependencies so we do not try to build scripts twice
489# in parallel
490PHONY += scripts
491scripts: scripts_basic include/config/auto.conf
492	$(Q)$(MAKE) $(build)=$(@)
493
494ifeq ($(dot-config),1)
495# Read in config
496-include include/config/auto.conf
497
498# Read in dependencies to all Kconfig* files, make sure to run
499# oldconfig if changes are detected.
500-include include/config/auto.conf.cmd
501
502# To avoid any implicit rule to kick in, define an empty command
503$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
504
505# If .config is newer than include/config/auto.conf, someone tinkered
506# with it and forgot to run make oldconfig.
507# if auto.conf.cmd is missing then we are probably in a cleaned tree so
508# we execute the config step to be sure to catch updated Kconfig files
509include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
510	$(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
511	@# If the following part fails, include/config/auto.conf should be
512	@# deleted so "make silentoldconfig" will be re-run on the next build.
513	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
514		{ rm -f include/config/auto.conf; false; }
515	@# include/config.h has been updated after "make silentoldconfig".
516	@# We need to touch include/config/auto.conf so it gets newer
517	@# than include/config.h.
518	@# Otherwise, 'make silentoldconfig' would be invoked twice.
519	$(Q)touch include/config/auto.conf
520
521u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg: include/config.h FORCE
522	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@)
523
524-include include/autoconf.mk
525-include include/autoconf.mk.dep
526
527# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
528# is up-to-date. When we switch to a different board configuration, old CONFIG
529# macros are still remaining in include/config/auto.conf. Without the following
530# gimmick, wrong config.mk would be included leading nasty warnings/errors.
531ifneq ($(wildcard $(KCONFIG_CONFIG)),)
532ifneq ($(wildcard include/config/auto.conf),)
533autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
534						include/config/auto.conf)
535ifeq ($(autoconf_is_old),)
536include config.mk
537include arch/$(ARCH)/Makefile
538endif
539endif
540endif
541
542# These are set by the arch-specific config.mk. Make sure they are exported
543# so they can be used when building an EFI application.
544export EFI_LDS		# Filename of EFI link script in arch/$(ARCH)/lib
545export EFI_CRT0		# Filename of EFI CRT0 in arch/$(ARCH)/lib
546export EFI_RELOC	# Filename of EFU relocation code in arch/$(ARCH)/lib
547export CFLAGS_EFI	# Compiler flags to add when building EFI app
548export CFLAGS_NON_EFI	# Compiler flags to remove when building EFI app
549export EFI_TARGET	# binutils target if EFI is natively supported
550
551# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
552# that (or fail if absent).  Otherwise, search for a linker script in a
553# standard location.
554
555ifndef LDSCRIPT
556	#LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
557	ifdef CONFIG_SYS_LDSCRIPT
558		# need to strip off double quotes
559		LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
560	endif
561endif
562
563# If there is no specified link script, we look in a number of places for it
564ifndef LDSCRIPT
565	ifeq ($(wildcard $(LDSCRIPT)),)
566		LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
567	endif
568	ifeq ($(wildcard $(LDSCRIPT)),)
569		LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
570	endif
571	ifeq ($(wildcard $(LDSCRIPT)),)
572		LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
573	endif
574endif
575
576else
577# Dummy target needed, because used as prerequisite
578include/config/auto.conf: ;
579endif # $(dot-config)
580
581#
582# Xtensa linker script cannot be preprocessed with -ansi because of
583# preprocessor operations on strings that don't make C identifiers.
584#
585ifeq ($(CONFIG_XTENSA),)
586LDPPFLAGS	+= -ansi
587endif
588
589ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
590KBUILD_CFLAGS	+= -Os
591else
592KBUILD_CFLAGS	+= -O2
593endif
594
595KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
596KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
597
598# change __FILE__ to the relative path from the srctree
599KBUILD_CFLAGS	+= $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
600
601KBUILD_CFLAGS	+= -g
602# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
603# option to the assembler.
604KBUILD_AFLAGS	+= -g
605
606# Report stack usage if supported
607# ARC tools based on GCC 7.1 has an issue with stack usage
608# with naked functions, see commit message for more details
609ifndef CONFIG_ARC
610ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
611	KBUILD_CFLAGS += -fstack-usage
612endif
613endif
614
615KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
616ifeq ($(cc-name),clang)
617KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
618KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
619KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
620KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
621KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
622endif
623
624# turn jbsr into jsr for m68k
625ifeq ($(ARCH),m68k)
626ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
627KBUILD_AFLAGS += -Wa,-gstabs,-S
628endif
629endif
630
631# Prohibit date/time macros, which would make the build non-deterministic
632KBUILD_CFLAGS   += $(call cc-option,-Werror=date-time)
633
634include scripts/Makefile.extrawarn
635
636# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
637KBUILD_CPPFLAGS += $(KCPPFLAGS)
638KBUILD_AFLAGS += $(KAFLAGS)
639KBUILD_CFLAGS += $(KCFLAGS)
640
641# Use UBOOTINCLUDE when you must reference the include/ directory.
642# Needed to be compatible with the O= option
643UBOOTINCLUDE    := \
644		-Iinclude \
645		$(if $(KBUILD_SRC), -I$(srctree)/include) \
646		$(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \
647			$(if $(CONFIG_HAS_THUMB2),, \
648				-I$(srctree)/arch/$(ARCH)/thumb1/include),) \
649		-I$(srctree)/arch/$(ARCH)/include \
650		-include $(srctree)/include/linux/kconfig.h
651
652NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
653CHECKFLAGS     += $(NOSTDINC_FLAGS)
654
655# FIX ME
656cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
657							$(NOSTDINC_FLAGS)
658c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
659
660#########################################################################
661# U-Boot objects....order is important (i.e. start must be first)
662
663HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
664
665libs-y += lib/
666libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
667libs-$(CONFIG_OF_EMBED) += dts/
668libs-y += fs/
669libs-y += net/
670libs-y += disk/
671libs-y += drivers/
672libs-y += drivers/dma/
673libs-y += drivers/gpio/
674libs-y += drivers/i2c/
675libs-y += drivers/mtd/
676libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/
677libs-y += drivers/mtd/onenand/
678libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
679libs-y += drivers/mtd/spi/
680libs-y += drivers/net/
681libs-y += drivers/net/phy/
682libs-y += drivers/pci/
683libs-y += drivers/power/ \
684	drivers/power/domain/ \
685	drivers/power/fuel_gauge/ \
686	drivers/power/mfd/ \
687	drivers/power/pmic/ \
688	drivers/power/battery/ \
689	drivers/power/regulator/
690libs-y += drivers/spi/
691libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
692libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
693libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
694libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/
695libs-y += drivers/serial/
696libs-y += drivers/usb/dwc3/
697libs-y += drivers/usb/common/
698libs-y += drivers/usb/emul/
699libs-y += drivers/usb/eth/
700libs-y += drivers/usb/gadget/
701libs-y += drivers/usb/gadget/udc/
702libs-y += drivers/usb/host/
703libs-y += drivers/usb/musb/
704libs-y += drivers/usb/musb-new/
705libs-y += drivers/usb/phy/
706libs-y += drivers/usb/ulpi/
707libs-y += cmd/
708libs-y += common/
709libs-y += env/
710libs-$(CONFIG_API) += api/
711libs-$(CONFIG_HAS_POST) += post/
712libs-y += test/
713libs-y += test/dm/
714libs-$(CONFIG_UT_ENV) += test/env/
715libs-$(CONFIG_UT_OVERLAY) += test/overlay/
716
717libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
718
719libs-y := $(sort $(libs-y))
720
721u-boot-dirs	:= $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
722
723u-boot-alldirs	:= $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
724
725libs-y		:= $(patsubst %/, %/built-in.o, $(libs-y))
726
727u-boot-init := $(head-y)
728u-boot-main := $(libs-y)
729
730
731# Add GCC lib
732ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
733PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
734else
735PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
736endif
737PLATFORM_LIBS += $(PLATFORM_LIBGCC)
738
739ifdef CONFIG_CC_COVERAGE
740KBUILD_CFLAGS += --coverage
741PLATFORM_LIBGCC += -lgcov
742endif
743
744export PLATFORM_LIBS
745export PLATFORM_LIBGCC
746
747# Special flags for CPP when processing the linker script.
748# Pass the version down so we can handle backwards compatibility
749# on the fly.
750LDPPFLAGS += \
751	-include $(srctree)/include/u-boot/u-boot.lds.h \
752	-DCPUDIR=$(CPUDIR) \
753	$(shell $(LD) --version | \
754	  sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
755
756#########################################################################
757#########################################################################
758
759ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
760BOARD_SIZE_CHECK = \
761	@actual=`wc -c $@ | awk '{print $$1}'`; \
762	limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
763	if test $$actual -gt $$limit; then \
764		echo "$@ exceeds file size limit:" >&2 ; \
765		echo "  limit:  $$limit bytes" >&2 ; \
766		echo "  actual: $$actual bytes" >&2 ; \
767		echo "  excess: $$((actual - limit)) bytes" >&2; \
768		exit 1; \
769	fi
770else
771BOARD_SIZE_CHECK =
772endif
773
774# Statically apply RELA-style relocations (currently arm64 only)
775# This is useful for arm64 where static relocation needs to be performed on
776# the raw binary, but certain simulators only accept an ELF file (but don't
777# do the relocation).
778ifneq ($(CONFIG_STATIC_RELA),)
779# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
780DO_STATIC_RELA = \
781	start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
782	end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
783	tools/relocate-rela $(2) $(3) $$start $$end
784else
785DO_STATIC_RELA =
786endif
787
788# Always append ALL so that arch config.mk's can add custom ones
789ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
790
791ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
792ifeq ($(CONFIG_SPL_FSL_PBL),y)
793ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
794else
795ifneq ($(CONFIG_SECURE_BOOT), y)
796# For Secure Boot The Image needs to be signed and Header must also
797# be included. So The image has to be built explicitly
798ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
799endif
800endif
801ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
802ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy)
803ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
804else
805ifeq ($(CONFIG_MX7)$(CONFIG_SECURE_BOOT), yy)
806ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
807else
808ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
809endif
810endif
811ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
812ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
813ifeq ($(CONFIG_SPL_FRAMEWORK),y)
814ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
815endif
816ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
817ifneq ($(CONFIG_SPL_TARGET),)
818ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
819endif
820ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
821ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
822ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
823
824ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),)
825ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
826endif
827
828# Build a combined spl + u-boot image for sunxi
829ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy)
830ALL-y += u-boot-sunxi-with-spl.bin
831endif
832
833# enable combined SPL/u-boot/dtb rules for tegra
834ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy)
835ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
836ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin
837endif
838
839# Add optional build target if defined in board/cpu/soc headers
840ifneq ($(CONFIG_BUILD_TARGET),)
841ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
842endif
843
844ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
845ALL-y += init_sp_bss_offset_check
846endif
847
848LDFLAGS_u-boot += $(LDFLAGS_FINAL)
849
850# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
851LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
852
853ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
854LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
855endif
856
857# Normally we fill empty space with 0xff
858quiet_cmd_objcopy = OBJCOPY $@
859cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
860	$(OBJCOPYFLAGS_$(@F)) $< $@
861
862# Provide a version which does not do this, for use by EFI
863quiet_cmd_zobjcopy = OBJCOPY $@
864cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
865
866quiet_cmd_efipayload = OBJCOPY $@
867cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
868
869MKIMAGEOUTPUT ?= /dev/null
870
871quiet_cmd_mkimage = MKIMAGE $@
872cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
873	>$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
874
875quiet_cmd_mkfitimage = MKIMAGE $@
876cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -E $@ \
877	>$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
878
879quiet_cmd_cat = CAT     $@
880cmd_cat = cat $(filter-out $(PHONY), $^) > $@
881
882append = cat $(filter-out $< $(PHONY), $^) >> $@
883
884quiet_cmd_pad_cat = CAT     $@
885cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
886
887cfg: u-boot.cfg
888
889quiet_cmd_cfgcheck = CFGCHK  $2
890cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
891		$(srctree)/scripts/config_whitelist.txt $(srctree)
892
893all:		$(ALL-y) cfg
894ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y)
895	@echo "===================== WARNING ======================"
896	@echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
897	@echo "(possibly in a subsequent patch in your series)"
898	@echo "before sending patches to the mailing list."
899	@echo "===================================================="
900endif
901	@# Check that this build does not use CONFIG options that we do not
902	@# know about unless they are in Kconfig. All the existing CONFIG
903	@# options are whitelisted, so new ones should not be added.
904	$(call cmd,cfgcheck,u-boot.cfg)
905
906PHONY += dtbs
907dtbs: dts/dt.dtb
908	@:
909dts/dt.dtb: u-boot
910	$(Q)$(MAKE) $(build)=dts dtbs
911
912quiet_cmd_copy = COPY    $@
913      cmd_copy = cp $< $@
914
915ifeq ($(CONFIG_MULTI_DTB_FIT),y)
916
917fit-dtb.blob: dts/dt.dtb FORCE
918	$(call if_changed,mkimage)
919
920MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
921	-a 0 -e 0 -E \
922	$(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
923
924u-boot-fit-dtb.bin: u-boot-nodtb.bin fit-dtb.blob
925	$(call if_changed,cat)
926
927u-boot.bin: u-boot-fit-dtb.bin FORCE
928	$(call if_changed,copy)
929else ifeq ($(CONFIG_OF_SEPARATE),y)
930u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
931	$(call if_changed,cat)
932
933u-boot.bin: u-boot-dtb.bin FORCE
934	$(call if_changed,copy)
935else
936u-boot.bin: u-boot-nodtb.bin FORCE
937	$(call if_changed,copy)
938endif
939
940%.imx: %.bin
941	$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
942
943%.vyb: %.imx
944	$(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
945
946quiet_cmd_copy = COPY    $@
947      cmd_copy = cp $< $@
948
949u-boot.dtb: dts/dt.dtb
950	$(call cmd,copy)
951
952OBJCOPYFLAGS_u-boot.hex := -O ihex
953
954OBJCOPYFLAGS_u-boot.srec := -O srec
955
956u-boot.hex u-boot.srec: u-boot FORCE
957	$(call if_changed,objcopy)
958
959OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
960
961u-boot-elf.srec: u-boot.elf FORCE
962	$(call if_changed,objcopy)
963
964OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
965
966spl/u-boot-spl.srec: spl/u-boot-spl FORCE
967	$(call if_changed,objcopy)
968
969OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
970		$(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec)
971
972binary_size_check: u-boot-nodtb.bin FORCE
973	@file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
974	map_size=$(shell cat u-boot.map | \
975		awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
976		| sed 's/0X//g' \
977		| bc); \
978	if [ "" != "$$map_size" ]; then \
979		if test $$map_size -ne $$file_size; then \
980			echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
981			echo "  but u-boot-nodtb.bin shows $$file_size" >&2 ; \
982			exit 1; \
983		fi \
984	fi
985
986ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
987ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
988subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
989else
990subtract_sys_malloc_f_len = true
991endif
992# The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
993# so low that the DTB could probably use 90%+ of the available space, for
994# current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
995# safe for now and tweak this later if space becomes tight.
996# A rejected alternative would be to check that some absolute minimum stack
997# space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
998# deliberately build-specific, to take account of build-to-build stack usage
999# differences due to different feature sets, there is no common absolute value
1000# to check against.
1001init_sp_bss_offset_check: u-boot.dtb FORCE
1002	@dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
1003	space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
1004	$(subtract_sys_malloc_f_len) ; \
1005	quarter_space=$$(($${space} / 4)) ; \
1006	if [ $${dtb_size} -gt $${quarter_space} ]; then \
1007		echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
1008		echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
1009		exit 1 ; \
1010	fi
1011endif
1012
1013u-boot-nodtb.bin: u-boot FORCE
1014	$(call if_changed,objcopy)
1015	$(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
1016	$(BOARD_SIZE_CHECK)
1017
1018u-boot.ldr:	u-boot
1019		$(CREATE_LDR_ENV)
1020		$(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
1021		$(BOARD_SIZE_CHECK)
1022
1023# binman
1024# ---------------------------------------------------------------------------
1025quiet_cmd_binman = BINMAN  $@
1026cmd_binman = $(srctree)/tools/binman/binman -d u-boot.dtb -O . \
1027		-I . -I $(srctree)/board/$(BOARDDIR) $<
1028
1029OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
1030
1031OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
1032
1033u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
1034	$(call if_changed,objcopy)
1035
1036#
1037# U-Boot entry point, needed for booting of full-blown U-Boot
1038# from the SPL U-Boot version.
1039#
1040ifndef CONFIG_SYS_UBOOT_START
1041CONFIG_SYS_UBOOT_START := 0
1042endif
1043
1044# Create a file containing the configuration options the image was built with
1045quiet_cmd_cpp_cfg = CFG     $@
1046cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
1047	-DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
1048
1049# Boards with more complex image requirments can provide an .its source file
1050# or a generator script
1051ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
1052U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
1053else
1054ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
1055U_BOOT_ITS := u-boot.its
1056$(U_BOOT_ITS): FORCE
1057	$(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
1058	$(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
1059endif
1060endif
1061
1062ifdef CONFIG_SPL_LOAD_FIT
1063MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1064	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1065	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1066	$(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
1067else
1068MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1069	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1070	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1071MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1072	-a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1073	-n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1074u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1075CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
1076endif
1077
1078MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1079
1080MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1081	-T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
1082
1083MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1084	-T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1085	$(if $(KEYDIR),-k $(KEYDIR))
1086
1087MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1088		-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1089
1090u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1091		$(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
1092	$(call if_changed,mkimage)
1093
1094u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE
1095	$(call if_changed,mkfitimage)
1096	$(BOARD_SIZE_CHECK)
1097
1098u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
1099	$(call if_changed,mkimage)
1100
1101u-boot.sha1:	u-boot.bin
1102		tools/ubsha1 u-boot.bin
1103
1104u-boot.dis:	u-boot
1105		$(OBJDUMP) -d $< > $@
1106
1107ifdef CONFIG_TPL
1108SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
1109else
1110SPL_PAYLOAD := u-boot.bin
1111endif
1112
1113OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1114				   --pad-to=$(CONFIG_SPL_PAD_TO)
1115u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
1116	$(call if_changed,pad_cat)
1117
1118MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1119
1120lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1121	$(call if_changed,mkimage)
1122
1123OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1124
1125lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1126	$(call if_changed,objcopy)
1127
1128OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1129
1130lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1131	$(call if_changed,objcopy)
1132
1133lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1134	$(call if_changed,cat)
1135
1136CLEAN_FILES += lpc32xx-*
1137
1138OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1139				   --pad-to=$(CONFIG_TPL_PAD_TO)
1140tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1141	$(call if_changed,pad_cat)
1142
1143SPL: spl/u-boot-spl.bin FORCE
1144	$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1145
1146u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
1147	$(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1148
1149MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1150
1151u-boot.ubl: u-boot-with-spl.bin FORCE
1152	$(call if_changed,mkimage)
1153
1154MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1155	$(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1156	-T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1157spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1158	$(call if_changed,mkimage)
1159
1160OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1161u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1162	$(call if_changed,pad_cat)
1163
1164u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1165	$(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1166u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1167	$(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1168
1169# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1170# Both images are created using mkimage (crc etc), so that the ROM
1171# bootloader can check its integrity. Padding needs to be done to the
1172# SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1173# which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1174# The resulting image containing both U-Boot images is called u-boot.spr
1175MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1176	-a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1177spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1178	$(call if_changed,mkimage)
1179
1180OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1181			  --gap-fill=0xff
1182u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1183	$(call if_changed,pad_cat)
1184
1185ifneq ($(CONFIG_ARCH_SOCFPGA),)
1186quiet_cmd_socboot = SOCBOOT $@
1187cmd_socboot = cat	spl/u-boot-spl.sfp spl/u-boot-spl.sfp	\
1188			spl/u-boot-spl.sfp spl/u-boot-spl.sfp	\
1189			u-boot.img > $@ || rm -f $@
1190u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1191	$(call if_changed,socboot)
1192endif
1193
1194# x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1195# reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1196# the middle. This is handled by binman based on an image description in the
1197# board's device tree.
1198ifneq ($(CONFIG_X86_RESET_VECTOR),)
1199rom: u-boot.rom FORCE
1200
1201refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1202	$(call if_changed,copy)
1203
1204quiet_cmd_ldr = LD      $@
1205cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1206	       $(filter-out FORCE,$^) -o $@
1207
1208u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \
1209		$(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1210		$(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
1211	$(call if_changed,binman)
1212
1213OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
1214u-boot-x86-16bit.bin: u-boot FORCE
1215	$(call if_changed,objcopy)
1216endif
1217
1218ifneq ($(CONFIG_ARCH_SUNXI),)
1219ifeq ($(CONFIG_ARM64),)
1220u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
1221	$(call if_changed,binman)
1222else
1223u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE
1224	$(call if_changed,cat)
1225endif
1226endif
1227
1228ifneq ($(CONFIG_TEGRA),)
1229ifneq ($(CONFIG_BINMAN),)
1230u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin: \
1231		spl/u-boot-spl u-boot.bin FORCE
1232	$(call if_changed,binman)
1233else
1234OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1235u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1236	$(call if_changed,pad_cat)
1237
1238OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1239u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1240	$(call if_changed,pad_cat)
1241
1242u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1243	$(call if_changed,copy)
1244endif  # binman
1245endif
1246
1247OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1248u-boot-app.efi: u-boot FORCE
1249	$(call if_changed,zobjcopy)
1250
1251u-boot.bin.o: u-boot.bin FORCE
1252	$(call if_changed,efipayload)
1253
1254u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1255	$(call if_changed_dep,cpp_lds)
1256
1257# Rule to link the EFI payload which contains a stub and a U-Boot binary
1258quiet_cmd_u-boot_payload ?= LD      $@
1259      cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1260      -T u-boot-payload.lds arch/x86/cpu/call32.o \
1261      lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1262      $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1263
1264u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1265	$(call if_changed,u-boot_payload)
1266
1267OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1268u-boot-payload.efi: u-boot-payload FORCE
1269	$(call if_changed,zobjcopy)
1270
1271u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1272	$(call if_changed,cat)
1273
1274#Add a target to create boot binary having SPL binary in PBI format
1275#concatenated with u-boot binary. It is need by PowerPC SoC having
1276#internal SRAM <= 512KB.
1277MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1278		-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1279		-A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1280
1281spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1282	$(call if_changed,mkimage)
1283
1284ifeq ($(ARCH),arm)
1285UBOOT_BINLOAD := u-boot.img
1286else
1287UBOOT_BINLOAD := u-boot.bin
1288endif
1289
1290OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1291			  --gap-fill=0xff
1292
1293u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1294	$(call if_changed,pad_cat)
1295
1296# PPC4xx needs the SPL at the end of the image, since the reset vector
1297# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1298# and need to introduce a new build target with the full blown U-Boot
1299# at the start padded up to the start of the SPL image. And then concat
1300# the SPL image to the end.
1301
1302OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1303	--pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1304u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1305	$(call if_changed,pad_cat)
1306
1307# Create a new ELF from a raw binary file.
1308ifndef PLATFORM_ELFENTRY
1309  PLATFORM_ELFENTRY = "_start"
1310endif
1311quiet_cmd_u-boot-elf ?= LD      $@
1312	cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1313	--defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1314	-Ttext=$(CONFIG_SYS_TEXT_BASE)
1315u-boot.elf: u-boot.bin
1316	$(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1317	$(call if_changed,u-boot-elf)
1318
1319ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1320
1321# Rule to link u-boot
1322# May be overridden by arch/$(ARCH)/config.mk
1323quiet_cmd_u-boot__ ?= LD      $@
1324      cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1325      -T u-boot.lds $(u-boot-init)                             \
1326      --start-group $(u-boot-main) --end-group                 \
1327      $(PLATFORM_LIBS) -Map u-boot.map;                        \
1328      $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1329
1330quiet_cmd_smap = GEN     common/system_map.o
1331cmd_smap = \
1332	smap=`$(call SYSTEM_MAP,u-boot) | \
1333		awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1334	$(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1335		-c $(srctree)/common/system_map.c -o common/system_map.o
1336
1337u-boot:	$(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1338	+$(call if_changed,u-boot__)
1339ifeq ($(CONFIG_KALLSYMS),y)
1340	$(call cmd,smap)
1341	$(call cmd,u-boot__) common/system_map.o
1342endif
1343
1344ifeq ($(CONFIG_RISCV),y)
1345	@tools/prelink-riscv $@ 0
1346endif
1347
1348quiet_cmd_sym ?= SYM     $@
1349      cmd_sym ?= $(OBJDUMP) -t $< > $@
1350u-boot.sym: u-boot FORCE
1351	$(call if_changed,sym)
1352
1353# The actual objects are generated when descending,
1354# make sure no implicit rule kicks in
1355$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1356
1357# Handle descending into subdirectories listed in $(vmlinux-dirs)
1358# Preset locale variables to speed up the build process. Limit locale
1359# tweaks to this spot to avoid wrong language settings when running
1360# make menuconfig etc.
1361# Error messages still appears in the original language
1362
1363PHONY += $(u-boot-dirs)
1364$(u-boot-dirs): prepare scripts
1365	$(Q)$(MAKE) $(build)=$@
1366
1367tools: prepare
1368# The "tools" are needed early
1369$(filter-out tools, $(u-boot-dirs)): tools
1370# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1371# is "yes"), so compile examples after U-Boot is compiled.
1372examples: $(filter-out examples, $(u-boot-dirs))
1373
1374define filechk_uboot.release
1375	echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1376endef
1377
1378# Store (new) UBOOTRELEASE string in include/config/uboot.release
1379include/config/uboot.release: include/config/auto.conf FORCE
1380	$(call filechk,uboot.release)
1381
1382
1383# Things we need to do before we recursively start building the kernel
1384# or the modules are listed in "prepare".
1385# A multi level approach is used. prepareN is processed before prepareN-1.
1386# archprepare is used in arch Makefiles and when processed asm symlink,
1387# version.h and scripts_basic is processed / created.
1388
1389# Listed in dependency order
1390PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1391
1392# prepare3 is used to check if we are building in a separate output directory,
1393# and if so do:
1394# 1) Check that make has not been executed in the kernel src $(srctree)
1395prepare3: include/config/uboot.release
1396ifneq ($(KBUILD_SRC),)
1397	@$(kecho) '  Using $(srctree) as source for U-Boot'
1398	$(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1399		echo >&2 "  $(srctree) is not clean, please run 'make mrproper'"; \
1400		echo >&2 "  in the '$(srctree)' directory.";\
1401		/bin/false; \
1402	fi;
1403endif
1404
1405# prepare2 creates a makefile if using a separate output directory
1406prepare2: prepare3 outputmakefile
1407
1408prepare1: prepare2 $(version_h) $(timestamp_h) \
1409                   include/config/auto.conf
1410ifeq ($(wildcard $(LDSCRIPT)),)
1411	@echo >&2 "  Could not find linker script."
1412	@/bin/false
1413endif
1414
1415ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
1416prepare1: $(defaultenv_h)
1417endif
1418
1419archprepare: prepare1 scripts_basic
1420
1421prepare0: archprepare FORCE
1422	$(Q)$(MAKE) $(build)=.
1423
1424# All the preparing..
1425prepare: prepare0
1426
1427# Generate some files
1428# ---------------------------------------------------------------------------
1429
1430define filechk_version.h
1431	(echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1432	echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1433	echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1434	echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1435endef
1436
1437# The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1438# The BSD date on the other hand behaves different and would produce errors
1439# with the misused '-d' switch.  Respect that and search a working date with
1440# well known pre- and suffixes for the GNU variant of date.
1441define filechk_timestamp.h
1442	(if test -n "$${SOURCE_DATE_EPOCH}"; then \
1443		SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1444		DATE=""; \
1445		for date in gdate date.gnu date; do \
1446			$${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1447		done; \
1448		if test -n "$${DATE}"; then \
1449			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1450			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1451			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1452			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1453			LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1454		else \
1455			return 42; \
1456		fi; \
1457	else \
1458		LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1459		LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1460		LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1461		LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1462		LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1463	fi)
1464endef
1465
1466define filechk_defaultenv.h
1467	(grep -v '^#' | \
1468	 grep -v '^$$' | \
1469	 tr '\n' '\0' | \
1470	 sed -e 's/\\\x0/\n/' | \
1471	 xxd -i ; echo ", 0x00" ; )
1472endef
1473
1474$(version_h): include/config/uboot.release FORCE
1475	$(call filechk,version.h)
1476
1477$(timestamp_h): $(srctree)/Makefile FORCE
1478	$(call filechk,timestamp.h)
1479
1480$(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
1481	$(call filechk,defaultenv.h)
1482
1483# ---------------------------------------------------------------------------
1484quiet_cmd_cpp_lds = LDS     $@
1485cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1486		-D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
1487
1488u-boot.lds: $(LDSCRIPT) prepare FORCE
1489	$(call if_changed_dep,cpp_lds)
1490
1491spl/u-boot-spl.bin: spl/u-boot-spl
1492	@:
1493spl/u-boot-spl: tools prepare \
1494		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
1495		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
1496	$(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1497
1498spl/sunxi-spl.bin: spl/u-boot-spl
1499	@:
1500
1501spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1502	@:
1503
1504spl/u-boot-spl.sfp: spl/u-boot-spl
1505	@:
1506
1507spl/boot.bin: spl/u-boot-spl
1508	@:
1509
1510tpl/u-boot-tpl.bin: tools prepare \
1511		$(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1512	$(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1513
1514TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1515
1516FIND := find
1517FINDFLAGS := -L
1518
1519tags ctags:
1520		ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1521						-name '*.[chS]' -print`
1522		ln -s ctags tags
1523
1524etags:
1525		etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1526						-name '*.[chS]' -print`
1527cscope:
1528		$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1529						cscope.files
1530		cscope -b -q -k
1531
1532SYSTEM_MAP = \
1533		$(NM) $1 | \
1534		grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1535		LC_ALL=C sort
1536System.map:	u-boot
1537		@$(call SYSTEM_MAP,$<) > $@
1538
1539#########################################################################
1540
1541# ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1542# R_AARCH64_RELATIVE (64-bit).
1543checkarmreloc: u-boot
1544	@RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1545		grep R_A | sort -u`"; \
1546	if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1547		 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1548		echo "$< contains unexpected relocations: $$RELOC"; \
1549		false; \
1550	fi
1551
1552envtools: scripts_basic $(version_h) $(timestamp_h)
1553	$(Q)$(MAKE) $(build)=tools/env
1554
1555tools-only: scripts_basic $(version_h) $(timestamp_h)
1556	$(Q)$(MAKE) $(build)=tools
1557
1558tools-all: export HOST_TOOLS_ALL=y
1559tools-all: envtools tools ;
1560
1561cross_tools: export CROSS_BUILD_TOOLS=y
1562cross_tools: tools ;
1563
1564.PHONY : CHANGELOG
1565CHANGELOG:
1566	git log --no-merges U-Boot-1_1_5.. | \
1567	unexpand -a | sed -e 's/\s\s*$$//' > $@
1568
1569#########################################################################
1570
1571###
1572# Cleaning is done on three levels.
1573# make clean     Delete most generated files
1574#                Leave enough to build external modules
1575# make mrproper  Delete the current configuration, and all generated files
1576# make distclean Remove editor backup files, patch leftover files and the like
1577
1578# Directories & files removed with 'make clean'
1579CLEAN_DIRS  += $(MODVERDIR) \
1580	       $(foreach d, spl tpl, $(patsubst %,$d/%, \
1581			$(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1582
1583CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
1584	       boot* u-boot* MLO* SPL System.map fit-dtb.blob
1585
1586# Directories & files removed with 'make mrproper'
1587MRPROPER_DIRS  += include/config include/generated spl tpl \
1588		  .tmp_objdiff
1589MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1590		  ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
1591
1592# clean - Delete most, but leave enough to build external modules
1593#
1594clean: rm-dirs  := $(CLEAN_DIRS)
1595clean: rm-files := $(CLEAN_FILES)
1596
1597clean-dirs	:= $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1598
1599clean-dirs      := $(addprefix _clean_, $(clean-dirs) doc/DocBook)
1600
1601PHONY += $(clean-dirs) clean archclean
1602$(clean-dirs):
1603	$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1604
1605# TODO: Do not use *.cfgtmp
1606clean: $(clean-dirs)
1607	$(call cmd,rmdirs)
1608	$(call cmd,rmfiles)
1609	@find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1610		\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1611		-o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \
1612		-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1613		-o -name '*.symtypes' -o -name 'modules.order' \
1614		-o -name modules.builtin -o -name '.tmp_*.o.*' \
1615		-o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
1616		-o -name '*.gcno' \) -type f -print | xargs rm -f
1617
1618# mrproper - Delete all generated files, including .config
1619#
1620mrproper: rm-dirs  := $(wildcard $(MRPROPER_DIRS))
1621mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1622mrproper-dirs      := $(addprefix _mrproper_,scripts)
1623
1624PHONY += $(mrproper-dirs) mrproper archmrproper
1625$(mrproper-dirs):
1626	$(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1627
1628mrproper: clean $(mrproper-dirs)
1629	$(call cmd,rmdirs)
1630	$(call cmd,rmfiles)
1631	@rm -f arch/*/include/asm/arch
1632
1633# distclean
1634#
1635PHONY += distclean
1636
1637distclean: mrproper
1638	@find $(srctree) $(RCS_FIND_IGNORE) \
1639		\( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1640		-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1641		-o -name '.*.rej' -o -name '*%' -o -name 'core' \
1642		-o -name '*.pyc' \) \
1643		-type f -print | xargs rm -f
1644	@rm -f boards.cfg
1645
1646backup:
1647	F=`basename $(srctree)` ; cd .. ; \
1648	gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1649
1650help:
1651	@echo  'Cleaning targets:'
1652	@echo  '  clean		  - Remove most generated files but keep the config'
1653	@echo  '  mrproper	  - Remove all generated files + config + various backup files'
1654	@echo  '  distclean	  - mrproper + remove editor backup and patch files'
1655	@echo  ''
1656	@echo  'Configuration targets:'
1657	@$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1658	@echo  ''
1659	@echo  'Other generic targets:'
1660	@echo  '  all		  - Build all necessary images depending on configuration'
1661	@echo  '  tests		  - Build U-Boot for sandbox and run tests'
1662	@echo  '* u-boot	  - Build the bare u-boot'
1663	@echo  '  dir/            - Build all files in dir and below'
1664	@echo  '  dir/file.[oisS] - Build specified target only'
1665	@echo  '  dir/file.lst    - Build specified mixed source/assembly target only'
1666	@echo  '                    (requires a recent binutils and recent build (System.map))'
1667	@echo  '  tags/ctags	  - Generate ctags file for editors'
1668	@echo  '  etags		  - Generate etags file for editors'
1669	@echo  '  cscope	  - Generate cscope index'
1670	@echo  '  ubootrelease	  - Output the release version string (use with make -s)'
1671	@echo  '  ubootversion	  - Output the version stored in Makefile (use with make -s)'
1672	@echo  "  cfg		  - Don't build, just create the .cfg files"
1673	@echo  "  envtools	  - Build only the target-side environment tools"
1674	@echo  ''
1675	@echo  'Static analysers'
1676	@echo  '  checkstack      - Generate a list of stack hogs'
1677	@echo  '  coccicheck      - Execute static code analysis with Coccinelle'
1678	@echo  ''
1679	@echo  'Documentation targets:'
1680	@$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp
1681	@echo  ''
1682	@echo  '  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1683	@echo  '  make V=2   [targets] 2 => give reason for rebuild of target'
1684	@echo  '  make O=dir [targets] Locate all output files in "dir", including .config'
1685	@echo  '  make C=1   [targets] Check all c source with $$CHECK (sparse by default)'
1686	@echo  '  make C=2   [targets] Force check of all c source with $$CHECK'
1687	@echo  '  make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1688	@echo  '  make W=n   [targets] Enable extra gcc checks, n=1,2,3 where'
1689	@echo  '		1: warnings which may be relevant and do not occur too often'
1690	@echo  '		2: warnings which occur quite often but may still be relevant'
1691	@echo  '		3: more obscure warnings, can most likely be ignored'
1692	@echo  '		Multiple levels can be combined with W=12 or W=123'
1693	@echo  ''
1694	@echo  'Execute "make" or "make all" to build all targets marked with [*] '
1695	@echo  'For further info see the ./README file'
1696
1697tests:
1698	$(srctree)/test/run
1699
1700# Documentation targets
1701# ---------------------------------------------------------------------------
1702%docs: scripts_basic FORCE
1703	$(Q)$(MAKE) $(build)=scripts build_docproc
1704	$(Q)$(MAKE) $(build)=doc/DocBook $@
1705
1706endif #ifeq ($(config-targets),1)
1707endif #ifeq ($(mixed-targets),1)
1708
1709PHONY += checkstack ubootrelease ubootversion
1710
1711checkstack:
1712	$(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1713	$(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1714
1715ubootrelease:
1716	@echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1717
1718ubootversion:
1719	@echo $(UBOOTVERSION)
1720
1721# Single targets
1722# ---------------------------------------------------------------------------
1723# Single targets are compatible with:
1724# - build with mixed source and output
1725# - build with separate output dir 'make O=...'
1726# - external modules
1727#
1728#  target-dir => where to store outputfile
1729#  build-dir  => directory in kernel source tree to use
1730
1731ifeq ($(KBUILD_EXTMOD),)
1732        build-dir  = $(patsubst %/,%,$(dir $@))
1733        target-dir = $(dir $@)
1734else
1735        zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1736        build-dir  = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1737        target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1738endif
1739
1740%.s: %.c prepare scripts FORCE
1741	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1742%.i: %.c prepare scripts FORCE
1743	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1744%.o: %.c prepare scripts FORCE
1745	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1746%.lst: %.c prepare scripts FORCE
1747	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1748%.s: %.S prepare scripts FORCE
1749	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1750%.o: %.S prepare scripts FORCE
1751	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1752%.symtypes: %.c prepare scripts FORCE
1753	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1754
1755# Modules
1756/: prepare scripts FORCE
1757	$(cmd_crmodverdir)
1758	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1759	$(build)=$(build-dir)
1760%/: prepare scripts FORCE
1761	$(cmd_crmodverdir)
1762	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1763	$(build)=$(build-dir)
1764%.ko: prepare scripts FORCE
1765	$(cmd_crmodverdir)
1766	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1)   \
1767	$(build)=$(build-dir) $(@:.ko=.o)
1768	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1769
1770# Consistency checks
1771# ---------------------------------------------------------------------------
1772
1773PHONY += coccicheck
1774
1775coccicheck:
1776	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
1777
1778# FIXME Should go into a make.lib or something
1779# ===========================================================================
1780
1781quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN   $(wildcard $(rm-dirs)))
1782      cmd_rmdirs = rm -rf $(rm-dirs)
1783
1784quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(rm-files)))
1785      cmd_rmfiles = rm -f $(rm-files)
1786
1787# read all saved command lines
1788
1789targets := $(wildcard $(sort $(targets)))
1790cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1791
1792ifneq ($(cmd_files),)
1793  $(cmd_files): ;	# Do not try to update included dependency files
1794  include $(cmd_files)
1795endif
1796
1797endif	# skip-makefile
1798
1799PHONY += FORCE
1800FORCE:
1801
1802# Declare the contents of the .PHONY variable as phony.  We keep that
1803# information in a variable so we can use it in if_changed and friends.
1804.PHONY: $(PHONY)
1805