1 # SPDX-License-Identifier: GPL-2.0+
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.
15 # o Do not use make's built-in rules and variables
16 # (this increases performance and avoids hard-to-debug behaviour);
17 # o Look for make include files relative to root of kernel src
18 MAKEFLAGS += -rR --include-dir=$(CURDIR)
20 # Avoid funny character set dependencies
24 export LC_COLLATE LC_NUMERIC
26 # Avoid interference with shell env settings
29 # We are using a recursive build, so we need to do a little thinking
30 # to get the ordering right.
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
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
46 # ---------------------------------------------------------------------------
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.
52 # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
53 # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
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.
60 # A simple variant is to prefix commands with $(Q) - that's useful
61 # for commands that shall be hidden in non-verbose mode.
65 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
66 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
68 # To put more focus on warnings, be less verbose as default
69 # Use 'make V=1' to see the full commands
71 ifeq ("$(origin V)", "command line")
78 ifeq ($(KBUILD_VERBOSE),1)
86 # If the user is running make -s (silent mode), suppress echoing of
89 ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4
90 ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
94 ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
99 export quiet Q KBUILD_VERBOSE
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.
105 # Use "make O=dir/to/store/output/files/"
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/
113 # The O= assignment takes precedence over the KBUILD_OUTPUT environment
116 # KBUILD_SRC is set on invocation of make in OBJ directory
117 # KBUILD_SRC is not intended to be used by the regular user (for now)
118 ifeq ($(KBUILD_SRC),)
120 # OK, Make called in directory where kernel src resides
121 # Do we want to locate output files in a separate directory?
122 ifeq ("$(origin O)", "command line")
123 KBUILD_OUTPUT := $(O)
126 # That's our default target when none is given on the command line
130 # Cancel implicit rules on top Makefile
131 $(CURDIR)/Makefile Makefile: ;
133 ifneq ($(KBUILD_OUTPUT),)
134 # Invoke a second make in the output directory, passing relevant variables
135 # check that the output directory actually exists
136 saved-output := $(KBUILD_OUTPUT)
137 KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
139 $(if $(KBUILD_OUTPUT),, \
140 $(error failed to create output directory "$(saved-output)"))
142 PHONY += $(MAKECMDGOALS) sub-make
144 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
148 $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
149 -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
151 # Leave processing to above invocation of make
153 endif # ifneq ($(KBUILD_OUTPUT),)
154 endif # ifeq ($(KBUILD_SRC),)
156 # We process the rest of the Makefile if this is the final invocation of make
157 ifeq ($(skip-makefile),)
159 # Do not print "Entering directory ...",
160 # but we want to display it when entering to the output directory
161 # so that IDEs/editors are able to understand relative filenames.
162 MAKEFLAGS += --no-print-directory
164 # Call a source code checker (by default, "sparse") as part of the
167 # Use 'make C=1' to enable checking of only re-compiled files.
168 # Use 'make C=2' to enable checking of *all* source files, regardless
169 # of whether they are re-compiled or not.
171 # See the file "Documentation/sparse.txt" for more details, including
172 # where to get the "sparse" utility.
174 ifeq ("$(origin C)", "command line")
175 KBUILD_CHECKSRC = $(C)
177 ifndef KBUILD_CHECKSRC
181 # Use make M=dir to specify directory of external module to build
182 # Old syntax make ... SUBDIRS=$PWD is still supported
183 # Setting the environment variable KBUILD_EXTMOD take precedence
185 KBUILD_EXTMOD ?= $(SUBDIRS)
188 ifeq ("$(origin M)", "command line")
189 KBUILD_EXTMOD := $(M)
192 # If building an external module we do not care about the all: rule
193 # but instead _all depend on modules
195 ifeq ($(KBUILD_EXTMOD),)
201 ifeq ($(KBUILD_SRC),)
202 # building in the source tree
205 ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
206 # building in a subdirectory of the source tree
209 srctree := $(KBUILD_SRC)
216 VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
218 export srctree objtree VPATH
220 # Make sure CDPATH settings don't interfere
223 #########################################################################
225 HOSTARCH := $(shell uname -m | \
227 -e s/sun4u/sparc64/ \
230 -e s/ppc64/powerpc/ \
232 -e s/macppc/powerpc/\
235 HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
236 sed -e 's/\(cygwin\).*/cygwin/')
238 export HOSTARCH HOSTOS
240 #########################################################################
242 # set default to nothing for native builds
243 ifeq ($(HOSTARCH),$(ARCH))
247 KCONFIG_CONFIG ?= .config
248 export KCONFIG_CONFIG
250 # SHELL used by kbuild
251 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
252 else if [ -x /bin/bash ]; then echo /bin/bash; \
253 else echo sh; fi ; fi)
257 HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
258 $(if $(CONFIG_TOOLS_DEBUG),-g)
261 # With the move to GCC 6, we have implicitly upgraded our language
262 # standard to GNU11 (see https://gcc.gnu.org/gcc-5/porting_to.html).
263 # Some Linux distributions (including RHEL7, SLES13, Debian 8) still
264 # have older compilers as their default, so we make it explicit for
265 # these that our host tools are GNU11 (i.e. C11 w/ GNU extensions).
266 CSTD_FLAG := -std=gnu11
267 ifeq ($(HOSTOS),linux)
268 HOSTCFLAGS += $(CSTD_FLAG)
271 ifeq ($(HOSTOS),cygwin)
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.
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.
286 ifeq ($(HOSTOS),darwin)
287 # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
288 DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.')
289 DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.')
291 os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
292 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
294 # Snow Leopards build environment has no longer restrictions as described above
295 HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc")
296 HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp")
297 HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
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
302 HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie")
305 # Decide whether to build built-in, modular, or both.
306 # Normally, just do built-in.
311 # If we have only "make modules", don't compile built-in objects.
312 # When we're building modules with modversions, we need to consider
313 # the built-in objects during the descend as well, in order to
314 # make sure the checksums are up to date before we record them.
316 ifeq ($(MAKECMDGOALS),modules)
317 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
320 # If we have "make <whatever> modules", compile modules
321 # in addition to whatever we do anyway.
322 # Just "make" or "make all" shall build modules as well
324 # U-Boot does not need modules
325 #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
326 # KBUILD_MODULES := 1
329 #ifeq ($(MAKECMDGOALS),)
330 # KBUILD_MODULES := 1
333 export KBUILD_MODULES KBUILD_BUILTIN
334 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
336 # We need some generic definitions (do not try to remake the file).
337 scripts/Kbuild.include: ;
338 include scripts/Kbuild.include
340 # Make variables (CC, etc...)
342 AS = $(CROSS_COMPILE)as
344 ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
345 LD = $(CROSS_COMPILE)ld.bfd
347 LD = $(CROSS_COMPILE)ld
349 CC = $(CROSS_COMPILE)gcc
351 AR = $(CROSS_COMPILE)ar
352 NM = $(CROSS_COMPILE)nm
353 LDR = $(CROSS_COMPILE)ldr
354 STRIP = $(CROSS_COMPILE)strip
355 OBJCOPY = $(CROSS_COMPILE)objcopy
356 OBJDUMP = $(CROSS_COMPILE)objdump
364 DTC ?= $(objtree)/scripts/dtc/dtc
367 CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
368 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
370 KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
372 KBUILD_CFLAGS := -Wall -Wstrict-prototypes \
373 -Wno-format-security \
374 -fno-builtin -ffreestanding $(CSTD_FLAG)
375 KBUILD_CFLAGS += -fshort-wchar -fno-strict-aliasing
376 KBUILD_AFLAGS := -D__ASSEMBLY__
378 # Don't generate position independent code
379 KBUILD_CFLAGS += $(call cc-option,-fno-PIE)
380 KBUILD_AFLAGS += $(call cc-option,-fno-PIE)
382 # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
383 UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
384 UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
386 export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
387 export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
388 export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
389 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
390 export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3
391 export HOSTCXX HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
393 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
394 export KBUILD_CFLAGS KBUILD_AFLAGS
396 # When compiling out-of-tree modules, put MODVERDIR in the module
397 # tree rather than in the kernel tree. The kernel tree might
399 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
401 # Files to ignore in find ... statements
403 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \
404 -name CVS -o -name .pc -o -name .hg -o -name .git \) \
406 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
407 --exclude CVS --exclude .pc --exclude .hg --exclude .git
409 # ===========================================================================
410 # Rules shared between *config targets and build targets
412 # Basic helpers built in scripts/
413 PHONY += scripts_basic
415 $(Q)$(MAKE) $(build)=scripts/basic
416 $(Q)rm -f .tmp_quiet_recordmcount
418 # To avoid any implicit rule to kick in, define an empty command.
419 scripts/basic/%: scripts_basic ;
421 PHONY += outputmakefile
422 # outputmakefile generates a Makefile in the output directory, if using a
423 # separate output directory. This allows convenient use of make in the
426 ifneq ($(KBUILD_SRC),)
427 $(Q)ln -fsn $(srctree) source
428 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
429 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
432 # To make sure we do not include .config for any of the *config targets
433 # catch them early, and hand them over to scripts/kconfig/Makefile
434 # It is allowed to specify more targets when calling make, including
435 # mixing *config targets and build targets.
436 # For example 'make oldconfig all'.
437 # Detect when mixed targets is specified, and make a second invocation
438 # of make so .config is not included in this case either (for *config).
440 version_h := include/generated/version_autogenerated.h
441 timestamp_h := include/generated/timestamp_autogenerated.h
442 defaultenv_h := include/generated/defaultenv_autogenerated.h
444 no-dot-config-targets := clean clobber mrproper distclean \
445 help %docs check% coccicheck \
446 ubootversion backup tests check qcheck
452 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
453 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
458 ifeq ($(KBUILD_EXTMOD),)
459 ifneq ($(filter config %config,$(MAKECMDGOALS)),)
461 ifneq ($(words $(MAKECMDGOALS)),1)
467 ifeq ($(mixed-targets),1)
468 # ===========================================================================
469 # We're called with mixed targets (*config and build targets).
470 # Handle them one by one.
472 PHONY += $(MAKECMDGOALS) __build_one_by_one
474 $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
479 for i in $(MAKECMDGOALS); do \
480 $(MAKE) -f $(srctree)/Makefile $$i; \
484 ifeq ($(config-targets),1)
485 # ===========================================================================
486 # *config targets only - make sure prerequisites are updated, and descend
487 # in scripts/kconfig to make the *config target
489 KBUILD_DEFCONFIG := sandbox_defconfig
490 export KBUILD_DEFCONFIG KBUILD_KCONFIG
492 config: scripts_basic outputmakefile FORCE
493 $(Q)$(MAKE) $(build)=scripts/kconfig $@
495 %config: scripts_basic outputmakefile FORCE
496 $(Q)$(MAKE) $(build)=scripts/kconfig $@
499 # ===========================================================================
500 # Build targets only - this includes vmlinux, arch specific targets, clean
501 # targets and others. In general all targets except *config targets.
503 # Additional helpers built in scripts/
504 # Carefully list dependencies so we do not try to build scripts twice
507 scripts: scripts_basic include/config/auto.conf
508 $(Q)$(MAKE) $(build)=$(@)
510 ifeq ($(dot-config),1)
512 -include include/config/auto.conf
514 # Read in dependencies to all Kconfig* files, make sure to run
515 # oldconfig if changes are detected.
516 -include include/config/auto.conf.cmd
518 # To avoid any implicit rule to kick in, define an empty command
519 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
521 # If .config is newer than include/config/auto.conf, someone tinkered
522 # with it and forgot to run make oldconfig.
523 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
524 # we execute the config step to be sure to catch updated Kconfig files
525 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
526 $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig
527 @# If the following part fails, include/config/auto.conf should be
528 @# deleted so "make silentoldconfig" will be re-run on the next build.
529 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
530 { rm -f include/config/auto.conf; false; }
531 @# include/config.h has been updated after "make silentoldconfig".
532 @# We need to touch include/config/auto.conf so it gets newer
533 @# than include/config.h.
534 @# Otherwise, 'make silentoldconfig' would be invoked twice.
535 $(Q)touch include/config/auto.conf
537 u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg: include/config.h FORCE
538 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@)
540 -include include/autoconf.mk
541 -include include/autoconf.mk.dep
543 # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
544 # is up-to-date. When we switch to a different board configuration, old CONFIG
545 # macros are still remaining in include/config/auto.conf. Without the following
546 # gimmick, wrong config.mk would be included leading nasty warnings/errors.
547 ifneq ($(wildcard $(KCONFIG_CONFIG)),)
548 ifneq ($(wildcard include/config/auto.conf),)
549 autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
550 include/config/auto.conf)
551 ifeq ($(autoconf_is_old),)
553 include arch/$(ARCH)/Makefile
558 # These are set by the arch-specific config.mk. Make sure they are exported
559 # so they can be used when building an EFI application.
560 export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib
561 export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib
562 export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib
563 export CFLAGS_EFI # Compiler flags to add when building EFI app
564 export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app
565 export EFI_TARGET # binutils target if EFI is natively supported
567 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
568 # that (or fail if absent). Otherwise, search for a linker script in a
572 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
573 ifdef CONFIG_SYS_LDSCRIPT
574 # need to strip off double quotes
575 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
579 # If there is no specified link script, we look in a number of places for it
581 ifeq ($(wildcard $(LDSCRIPT)),)
582 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
584 ifeq ($(wildcard $(LDSCRIPT)),)
585 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
587 ifeq ($(wildcard $(LDSCRIPT)),)
588 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
593 # Dummy target needed, because used as prerequisite
594 include/config/auto.conf: ;
595 endif # $(dot-config)
598 # Xtensa linker script cannot be preprocessed with -ansi because of
599 # preprocessor operations on strings that don't make C identifiers.
601 ifeq ($(CONFIG_XTENSA),)
605 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
611 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
612 KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
614 # change __FILE__ to the relative path from the srctree
615 KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
618 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
619 # option to the assembler.
622 # Report stack usage if supported
623 # ARC tools based on GCC 7.1 has an issue with stack usage
624 # with naked functions, see commit message for more details
626 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
627 KBUILD_CFLAGS += -fstack-usage
631 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
632 ifeq ($(cc-name),clang)
633 KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
634 KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
635 KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
636 KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
637 KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
640 # turn jbsr into jsr for m68k
642 ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
643 KBUILD_AFLAGS += -Wa,-gstabs,-S
647 # Prohibit date/time macros, which would make the build non-deterministic
648 KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)
650 include scripts/Makefile.extrawarn
652 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
653 KBUILD_CPPFLAGS += $(KCPPFLAGS)
654 KBUILD_AFLAGS += $(KAFLAGS)
655 KBUILD_CFLAGS += $(KCFLAGS)
657 # Use UBOOTINCLUDE when you must reference the include/ directory.
658 # Needed to be compatible with the O= option
661 $(if $(KBUILD_SRC), -I$(srctree)/include) \
662 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \
663 $(if $(CONFIG_HAS_THUMB2),, \
664 -I$(srctree)/arch/$(ARCH)/thumb1/include),) \
665 -I$(srctree)/arch/$(ARCH)/include \
666 -include $(srctree)/include/linux/kconfig.h
668 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
669 CHECKFLAGS += $(NOSTDINC_FLAGS)
672 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
674 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
676 #########################################################################
677 # U-Boot objects....order is important (i.e. start must be first)
679 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
682 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
683 libs-$(CONFIG_OF_EMBED) += dts/
688 libs-y += drivers/dma/
689 libs-y += drivers/gpio/
690 libs-y += drivers/i2c/
691 libs-y += drivers/mtd/
692 libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/raw/
693 libs-y += drivers/mtd/onenand/
694 libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
695 libs-y += drivers/mtd/spi/
696 libs-y += drivers/net/
697 libs-y += drivers/net/phy/
698 libs-y += drivers/pci/
699 libs-y += drivers/power/ \
700 drivers/power/domain/ \
701 drivers/power/fuel_gauge/ \
703 drivers/power/pmic/ \
704 drivers/power/battery/ \
705 drivers/power/regulator/
706 libs-y += drivers/spi/
707 libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
708 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
709 libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
710 libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/
711 libs-y += drivers/serial/
712 libs-y += drivers/usb/dwc3/
713 libs-y += drivers/usb/common/
714 libs-y += drivers/usb/emul/
715 libs-y += drivers/usb/eth/
716 libs-y += drivers/usb/gadget/
717 libs-y += drivers/usb/gadget/udc/
718 libs-y += drivers/usb/host/
719 libs-y += drivers/usb/musb/
720 libs-y += drivers/usb/musb-new/
721 libs-y += drivers/usb/phy/
722 libs-y += drivers/usb/ulpi/
726 libs-$(CONFIG_API) += api/
727 libs-$(CONFIG_HAS_POST) += post/
730 libs-$(CONFIG_UT_ENV) += test/env/
731 libs-$(CONFIG_UT_OVERLAY) += test/overlay/
733 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
735 libs-y := $(sort $(libs-y))
737 u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
739 u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
741 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
743 u-boot-init := $(head-y)
744 u-boot-main := $(libs-y)
748 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
749 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
751 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
753 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
755 ifdef CONFIG_CC_COVERAGE
756 KBUILD_CFLAGS += --coverage
757 PLATFORM_LIBGCC += -lgcov
761 export PLATFORM_LIBGCC
763 # Special flags for CPP when processing the linker script.
764 # Pass the version down so we can handle backwards compatibility
767 -include $(srctree)/include/u-boot/u-boot.lds.h \
769 $(shell $(LD) --version | \
770 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
772 #########################################################################
773 #########################################################################
775 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
777 @actual=`wc -c $@ | awk '{print $$1}'`; \
778 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
779 if test $$actual -gt $$limit; then \
780 echo "$@ exceeds file size limit:" >&2 ; \
781 echo " limit: $$limit bytes" >&2 ; \
782 echo " actual: $$actual bytes" >&2 ; \
783 echo " excess: $$((actual - limit)) bytes" >&2; \
790 # Statically apply RELA-style relocations (currently arm64 only)
791 # This is useful for arm64 where static relocation needs to be performed on
792 # the raw binary, but certain simulators only accept an ELF file (but don't
793 # do the relocation).
794 ifneq ($(CONFIG_STATIC_RELA),)
795 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
797 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
798 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
799 tools/relocate-rela $(2) $(3) $$start $$end
804 # Always append ALL so that arch config.mk's can add custom ones
805 ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
807 ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
808 ifeq ($(CONFIG_SPL_FSL_PBL),y)
809 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
811 ifneq ($(CONFIG_SECURE_BOOT), y)
812 # For Secure Boot The Image needs to be signed and Header must also
813 # be included. So The image has to be built explicitly
814 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
817 ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
818 ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy)
819 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
821 ifeq ($(CONFIG_MX7)$(CONFIG_SECURE_BOOT), yy)
822 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
824 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
827 ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
828 ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
829 ifeq ($(CONFIG_SPL_FRAMEWORK),y)
830 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
832 ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
833 ifneq ($(CONFIG_SPL_TARGET),)
834 ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
836 ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
837 ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
838 ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
840 ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),)
841 ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
844 # Build a combined spl + u-boot image for sunxi
845 ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy)
846 ALL-y += u-boot-sunxi-with-spl.bin
849 # enable combined SPL/u-boot/dtb rules for tegra
850 ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy)
851 ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
852 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin
855 ALL-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin
857 # Add optional build target if defined in board/cpu/soc headers
858 ifneq ($(CONFIG_BUILD_TARGET),)
859 ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
862 ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
863 ALL-y += init_sp_bss_offset_check
866 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
867 ALL-y += u-boot-with-dtb.bin
870 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
872 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
873 LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
875 ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
876 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
879 # Normally we fill empty space with 0xff
880 quiet_cmd_objcopy = OBJCOPY $@
881 cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
882 $(OBJCOPYFLAGS_$(@F)) $< $@
884 # Provide a version which does not do this, for use by EFI
885 quiet_cmd_zobjcopy = OBJCOPY $@
886 cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
888 quiet_cmd_efipayload = OBJCOPY $@
889 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
891 MKIMAGEOUTPUT ?= /dev/null
893 quiet_cmd_mkimage = MKIMAGE $@
894 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
895 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
897 quiet_cmd_mkfitimage = MKIMAGE $@
898 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -E $@ \
899 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
901 quiet_cmd_cat = CAT $@
902 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
904 append = cat $(filter-out $< $(PHONY), $^) >> $@
906 quiet_cmd_pad_cat = CAT $@
907 cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
911 quiet_cmd_cfgcheck = CFGCHK $2
912 cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
913 $(srctree)/scripts/config_whitelist.txt $(srctree)
916 ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y)
917 @echo "===================== WARNING ======================"
918 @echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
919 @echo "(possibly in a subsequent patch in your series)"
920 @echo "before sending patches to the mailing list."
921 @echo "===================================================="
923 @# Check that this build does not use CONFIG options that we do not
924 @# know about unless they are in Kconfig. All the existing CONFIG
925 @# options are whitelisted, so new ones should not be added.
926 $(call cmd,cfgcheck,u-boot.cfg)
932 $(Q)$(MAKE) $(build)=dts dtbs
934 quiet_cmd_copy = COPY $@
937 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
939 fit-dtb.blob: dts/dt.dtb FORCE
940 $(call if_changed,mkimage)
942 MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
944 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
946 u-boot-fit-dtb.bin: u-boot-nodtb.bin fit-dtb.blob
947 $(call if_changed,cat)
949 u-boot.bin: u-boot-fit-dtb.bin FORCE
950 $(call if_changed,copy)
951 else ifeq ($(CONFIG_OF_SEPARATE),y)
952 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
953 $(call if_changed,cat)
955 u-boot.bin: u-boot-dtb.bin FORCE
956 $(call if_changed,copy)
958 u-boot.bin: u-boot-nodtb.bin FORCE
959 $(call if_changed,copy)
963 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
966 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
968 quiet_cmd_copy = COPY $@
971 u-boot.dtb: dts/dt.dtb
974 OBJCOPYFLAGS_u-boot.hex := -O ihex
976 OBJCOPYFLAGS_u-boot.srec := -O srec
978 u-boot.hex u-boot.srec: u-boot FORCE
979 $(call if_changed,objcopy)
981 OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
983 u-boot-elf.srec: u-boot.elf FORCE
984 $(call if_changed,objcopy)
986 OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
988 spl/u-boot-spl.srec: spl/u-boot-spl FORCE
989 $(call if_changed,objcopy)
991 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
992 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \
993 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),-R .bootpg -R .resetvec)
995 OBJCOPYFLAGS_u-boot-spl.hex = $(OBJCOPYFLAGS_u-boot.hex)
997 spl/u-boot-spl.hex: spl/u-boot-spl FORCE
998 $(call if_changed,objcopy)
1000 binary_size_check: u-boot-nodtb.bin FORCE
1001 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
1002 map_size=$(shell cat u-boot.map | \
1003 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
1006 if [ "" != "$$map_size" ]; then \
1007 if test $$map_size -ne $$file_size; then \
1008 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
1009 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \
1014 ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
1015 ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
1016 subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
1018 subtract_sys_malloc_f_len = true
1020 # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
1021 # so low that the DTB could probably use 90%+ of the available space, for
1022 # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
1023 # safe for now and tweak this later if space becomes tight.
1024 # A rejected alternative would be to check that some absolute minimum stack
1025 # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
1026 # deliberately build-specific, to take account of build-to-build stack usage
1027 # differences due to different feature sets, there is no common absolute value
1029 init_sp_bss_offset_check: u-boot.dtb FORCE
1030 @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
1031 space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
1032 $(subtract_sys_malloc_f_len) ; \
1033 quarter_space=$$(($${space} / 4)) ; \
1034 if [ $${dtb_size} -gt $${quarter_space} ]; then \
1035 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
1036 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
1041 u-boot-nodtb.bin: u-boot FORCE
1042 $(call if_changed,objcopy)
1043 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
1048 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
1052 # ---------------------------------------------------------------------------
1053 # Use 'make BINMAN_DEBUG=1' to enable debugging
1054 quiet_cmd_binman = BINMAN $@
1055 cmd_binman = $(srctree)/tools/binman/binman -u -d u-boot.dtb -O . -m \
1056 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \
1057 $(if $(BINMAN_DEBUG),-D) $(BINMAN_$(@F)) $<
1059 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
1061 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
1063 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
1064 $(call if_changed,objcopy)
1067 # U-Boot entry point, needed for booting of full-blown U-Boot
1068 # from the SPL U-Boot version.
1070 ifndef CONFIG_SYS_UBOOT_START
1071 CONFIG_SYS_UBOOT_START := 0
1074 # Boards with more complex image requirments can provide an .its source file
1075 # or a generator script
1076 ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
1077 U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
1079 ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
1080 U_BOOT_ITS := u-boot.its
1081 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-rockchip/make_fit_atf.py")
1082 U_BOOT_ITS_DEPS += u-boot
1084 $(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE
1085 $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
1086 $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
1090 ifdef CONFIG_SPL_LOAD_FIT
1091 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1092 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1093 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1094 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
1096 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1097 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1098 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1099 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1100 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1101 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1102 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1103 CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
1106 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1108 MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1109 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
1111 MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1112 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1113 $(if $(KEYDIR),-k $(KEYDIR))
1115 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1116 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1118 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1119 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
1120 $(call if_changed,mkimage)
1122 u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE
1123 $(call if_changed,mkfitimage)
1126 u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
1127 $(call if_changed,mkimage)
1129 u-boot.sha1: u-boot.bin
1130 tools/ubsha1 u-boot.bin
1133 $(OBJDUMP) -d $< > $@
1135 ifneq ($(CONFIG_SPL_PAYLOAD),)
1136 SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%)
1138 SPL_PAYLOAD := u-boot.bin
1141 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1142 --pad-to=$(CONFIG_SPL_PAD_TO)
1143 u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
1144 $(call if_changed,pad_cat)
1146 ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy)
1147 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1149 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1150 $(call if_changed,mkimage)
1152 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1154 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1155 $(call if_changed,objcopy)
1157 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1159 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1160 $(call if_changed,objcopy)
1162 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1163 $(call if_changed,cat)
1165 CLEAN_FILES += lpc32xx-*
1168 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1169 --pad-to=$(CONFIG_TPL_PAD_TO)
1170 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1171 $(call if_changed,pad_cat)
1173 SPL: spl/u-boot-spl.bin FORCE
1174 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1176 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
1177 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1179 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1181 u-boot.ubl: u-boot-with-spl.bin FORCE
1182 $(call if_changed,mkimage)
1184 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1185 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1186 -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1187 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1188 $(call if_changed,mkimage)
1190 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1191 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1192 $(call if_changed,pad_cat)
1194 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1195 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1196 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1197 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1199 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1200 # Both images are created using mkimage (crc etc), so that the ROM
1201 # bootloader can check its integrity. Padding needs to be done to the
1202 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1203 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1204 # The resulting image containing both U-Boot images is called u-boot.spr
1205 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1206 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1207 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1208 $(call if_changed,mkimage)
1210 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1212 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1213 $(call if_changed,pad_cat)
1215 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1216 quiet_cmd_socboot = SOCBOOT $@
1217 cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1218 spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1219 u-boot.img > $@ || rm -f $@
1220 u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1221 $(call if_changed,socboot)
1224 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1225 u-boot-with-dtb.bin: u-boot.bin u-boot.dtb \
1226 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR), u-boot-br.bin) FORCE
1227 $(call if_changed,binman)
1229 ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR),y)
1230 OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec
1231 u-boot-br.bin: u-boot FORCE
1232 $(call if_changed,objcopy)
1236 # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1237 # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1238 # the middle. This is handled by binman based on an image description in the
1239 # board's device tree.
1240 ifneq ($(CONFIG_X86_RESET_VECTOR),)
1241 rom: u-boot.rom FORCE
1243 refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1244 $(call if_changed,copy)
1246 quiet_cmd_ldr = LD $@
1247 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1248 $(filter-out FORCE,$^) -o $@
1250 u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \
1251 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1252 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
1253 $(call if_changed,binman)
1255 OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
1256 u-boot-x86-16bit.bin: u-boot FORCE
1257 $(call if_changed,objcopy)
1260 ifneq ($(CONFIG_ARCH_SUNXI),)
1261 ifeq ($(CONFIG_ARM64),)
1262 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
1263 $(call if_changed,binman)
1265 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE
1266 $(call if_changed,cat)
1270 ifneq ($(CONFIG_TEGRA),)
1271 ifneq ($(CONFIG_BINMAN),)
1272 # Makes u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin
1273 %-dtb-tegra.bin %-tegra.bin %-nodtb-tegra.bin: \
1274 spl/%-spl %.bin FORCE
1275 $(call if_changed,binman)
1277 OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1278 u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1279 $(call if_changed,pad_cat)
1281 OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1282 u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1283 $(call if_changed,pad_cat)
1285 u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1286 $(call if_changed,copy)
1290 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1291 u-boot-app.efi: u-boot FORCE
1292 $(call if_changed,zobjcopy)
1294 u-boot.bin.o: u-boot.bin FORCE
1295 $(call if_changed,efipayload)
1297 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1298 $(call if_changed_dep,cpp_lds)
1300 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1301 quiet_cmd_u-boot_payload ?= LD $@
1302 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1303 -T u-boot-payload.lds arch/x86/cpu/call32.o \
1304 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1305 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1307 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1308 $(call if_changed,u-boot_payload)
1310 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1311 u-boot-payload.efi: u-boot-payload FORCE
1312 $(call if_changed,zobjcopy)
1314 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1315 $(call if_changed,cat)
1317 #Add a target to create boot binary having SPL binary in PBI format
1318 #concatenated with u-boot binary. It is need by PowerPC SoC having
1319 #internal SRAM <= 512KB.
1320 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1321 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1322 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1324 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1325 $(call if_changed,mkimage)
1328 UBOOT_BINLOAD := u-boot.img
1330 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1331 UBOOT_BINLOAD := u-boot-with-dtb.bin
1333 UBOOT_BINLOAD := u-boot.bin
1337 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1340 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1341 $(call if_changed,pad_cat)
1343 # PPC4xx needs the SPL at the end of the image, since the reset vector
1344 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1345 # and need to introduce a new build target with the full blown U-Boot
1346 # at the start padded up to the start of the SPL image. And then concat
1347 # the SPL image to the end.
1349 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1350 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1351 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1352 $(call if_changed,pad_cat)
1354 # Create a new ELF from a raw binary file.
1355 ifndef PLATFORM_ELFENTRY
1356 PLATFORM_ELFENTRY = "_start"
1358 quiet_cmd_u-boot-elf ?= LD $@
1359 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1360 --defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1361 -Ttext=$(CONFIG_SYS_TEXT_BASE)
1362 u-boot.elf: u-boot.bin
1363 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1364 $(call if_changed,u-boot-elf)
1366 # MediaTek's ARM-based u-boot needs a header to contains its load address
1367 # which is parsed by the BootROM.
1368 # If the SPL build is enabled, the header will be added to the spl binary,
1369 # and the spl binary and the u-boot.img will be combined into one file.
1370 # Otherwise the header will be added to the u-boot.bin directly.
1372 ifeq ($(CONFIG_SPL),y)
1373 spl/u-boot-spl-mtk.bin: spl/u-boot-spl
1375 u-boot-mtk.bin: u-boot.dtb u-boot.img spl/u-boot-spl-mtk.bin FORCE
1376 $(call if_changed,binman)
1378 MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \
1379 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1380 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
1382 u-boot-mtk.bin: u-boot.bin FORCE
1383 $(call if_changed,mkimage)
1386 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1388 # Rule to link u-boot
1389 # May be overridden by arch/$(ARCH)/config.mk
1390 quiet_cmd_u-boot__ ?= LD $@
1391 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1392 -T u-boot.lds $(u-boot-init) \
1393 --start-group $(u-boot-main) --end-group \
1394 $(PLATFORM_LIBS) -Map u-boot.map; \
1395 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1397 quiet_cmd_smap = GEN common/system_map.o
1399 smap=`$(call SYSTEM_MAP,u-boot) | \
1400 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1401 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1402 -c $(srctree)/common/system_map.c -o common/system_map.o
1404 u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1405 +$(call if_changed,u-boot__)
1406 ifeq ($(CONFIG_KALLSYMS),y)
1408 $(call cmd,u-boot__) common/system_map.o
1411 ifeq ($(CONFIG_RISCV),y)
1412 @tools/prelink-riscv $@ 0
1415 quiet_cmd_sym ?= SYM $@
1416 cmd_sym ?= $(OBJDUMP) -t $< > $@
1417 u-boot.sym: u-boot FORCE
1418 $(call if_changed,sym)
1420 # The actual objects are generated when descending,
1421 # make sure no implicit rule kicks in
1422 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1424 # Handle descending into subdirectories listed in $(vmlinux-dirs)
1425 # Preset locale variables to speed up the build process. Limit locale
1426 # tweaks to this spot to avoid wrong language settings when running
1427 # make menuconfig etc.
1428 # Error messages still appears in the original language
1430 PHONY += $(u-boot-dirs)
1431 $(u-boot-dirs): prepare scripts
1432 $(Q)$(MAKE) $(build)=$@
1435 # The "tools" are needed early
1436 $(filter-out tools, $(u-boot-dirs)): tools
1437 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1438 # is "yes"), so compile examples after U-Boot is compiled.
1439 examples: $(filter-out examples, $(u-boot-dirs))
1441 define filechk_uboot.release
1442 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1445 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1446 include/config/uboot.release: include/config/auto.conf FORCE
1447 $(call filechk,uboot.release)
1450 # Things we need to do before we recursively start building the kernel
1451 # or the modules are listed in "prepare".
1452 # A multi level approach is used. prepareN is processed before prepareN-1.
1453 # archprepare is used in arch Makefiles and when processed asm symlink,
1454 # version.h and scripts_basic is processed / created.
1456 # Listed in dependency order
1457 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1459 # prepare3 is used to check if we are building in a separate output directory,
1461 # 1) Check that make has not been executed in the kernel src $(srctree)
1462 prepare3: include/config/uboot.release
1463 ifneq ($(KBUILD_SRC),)
1464 @$(kecho) ' Using $(srctree) as source for U-Boot'
1465 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1466 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
1467 echo >&2 " in the '$(srctree)' directory.";\
1472 # prepare2 creates a makefile if using a separate output directory
1473 prepare2: prepare3 outputmakefile
1475 prepare1: prepare2 $(version_h) $(timestamp_h) \
1476 include/config/auto.conf
1477 ifeq ($(wildcard $(LDSCRIPT)),)
1478 @echo >&2 " Could not find linker script."
1482 ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
1483 prepare1: $(defaultenv_h)
1486 archprepare: prepare1 scripts_basic
1488 prepare0: archprepare FORCE
1489 $(Q)$(MAKE) $(build)=.
1491 # All the preparing..
1494 # Generate some files
1495 # ---------------------------------------------------------------------------
1497 define filechk_version.h
1498 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1499 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1500 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1501 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1504 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1505 # The BSD date on the other hand behaves different and would produce errors
1506 # with the misused '-d' switch. Respect that and search a working date with
1507 # well known pre- and suffixes for the GNU variant of date.
1508 define filechk_timestamp.h
1509 (if test -n "$${SOURCE_DATE_EPOCH}"; then \
1510 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1512 for date in gdate date.gnu date; do \
1513 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1515 if test -n "$${DATE}"; then \
1516 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1517 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1518 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1519 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1520 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1525 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1526 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1527 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1528 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1529 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1533 define filechk_defaultenv.h
1537 sed -e 's/\\\x0/\n/' | \
1538 xxd -i ; echo ", 0x00" ; )
1541 $(version_h): include/config/uboot.release FORCE
1542 $(call filechk,version.h)
1544 $(timestamp_h): $(srctree)/Makefile FORCE
1545 $(call filechk,timestamp.h)
1547 $(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
1548 $(call filechk,defaultenv.h)
1550 # ---------------------------------------------------------------------------
1551 quiet_cmd_cpp_lds = LDS $@
1552 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1553 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
1555 u-boot.lds: $(LDSCRIPT) prepare FORCE
1556 $(call if_changed_dep,cpp_lds)
1558 spl/u-boot-spl.bin: spl/u-boot-spl
1560 spl/u-boot-spl: tools prepare \
1561 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
1562 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
1563 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1565 spl/sunxi-spl.bin: spl/u-boot-spl
1568 spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1571 spl/u-boot-spl.sfp: spl/u-boot-spl
1574 spl/boot.bin: spl/u-boot-spl
1577 tpl/u-boot-tpl.bin: tools prepare \
1578 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1579 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1581 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1587 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1588 -name '*.[chS]' -print`
1592 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1593 -name '*.[chS]' -print`
1595 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1601 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1604 @$(call SYSTEM_MAP,$<) > $@
1606 #########################################################################
1608 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1609 # R_AARCH64_RELATIVE (64-bit).
1610 checkarmreloc: u-boot
1611 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1612 grep R_A | sort -u`"; \
1613 if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1614 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1615 echo "$< contains unexpected relocations: $$RELOC"; \
1619 envtools: scripts_basic $(version_h) $(timestamp_h)
1620 $(Q)$(MAKE) $(build)=tools/env
1622 tools-only: scripts_basic $(version_h) $(timestamp_h)
1623 $(Q)$(MAKE) $(build)=tools
1625 tools-all: export HOST_TOOLS_ALL=y
1626 tools-all: envtools tools ;
1628 cross_tools: export CROSS_BUILD_TOOLS=y
1629 cross_tools: tools ;
1633 git log --no-merges U-Boot-1_1_5.. | \
1634 unexpand -a | sed -e 's/\s\s*$$//' > $@
1636 #########################################################################
1639 # Cleaning is done on three levels.
1640 # make clean Delete most generated files
1641 # Leave enough to build external modules
1642 # make mrproper Delete the current configuration, and all generated files
1643 # make distclean Remove editor backup files, patch leftover files and the like
1645 # Directories & files removed with 'make clean'
1646 CLEAN_DIRS += $(MODVERDIR) \
1647 $(foreach d, spl tpl, $(patsubst %,$d/%, \
1648 $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1650 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
1651 boot* u-boot* MLO* SPL System.map fit-dtb.blob
1653 # Directories & files removed with 'make mrproper'
1654 MRPROPER_DIRS += include/config include/generated spl tpl \
1656 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1657 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
1659 # clean - Delete most, but leave enough to build external modules
1661 clean: rm-dirs := $(CLEAN_DIRS)
1662 clean: rm-files := $(CLEAN_FILES)
1664 clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1666 clean-dirs := $(addprefix _clean_, $(clean-dirs))
1668 PHONY += $(clean-dirs) clean archclean
1670 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1672 clean: $(clean-dirs)
1675 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1676 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1677 -o -name '*.ko.*' -o -name '*.su' \
1678 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1679 -o -name '*.lex.c' -o -name '*.tab.[ch]' \
1680 -o -name '*.symtypes' -o -name 'modules.order' \
1681 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1682 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
1683 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
1684 -type f -print | xargs rm -f
1686 # mrproper - Delete all generated files, including .config
1688 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
1689 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1690 mrproper-dirs := $(addprefix _mrproper_,scripts)
1692 PHONY += $(mrproper-dirs) mrproper archmrproper
1694 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1696 mrproper: clean $(mrproper-dirs)
1699 @rm -f arch/*/include/asm/arch
1706 @find $(srctree) $(RCS_FIND_IGNORE) \
1707 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1708 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1709 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
1710 -o -name '*.pyc' \) \
1711 -type f -print | xargs rm -f
1715 F=`basename $(srctree)` ; cd .. ; \
1716 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1719 @echo 'Cleaning targets:'
1720 @echo ' clean - Remove most generated files but keep the config'
1721 @echo ' mrproper - Remove all generated files + config + various backup files'
1722 @echo ' distclean - mrproper + remove editor backup and patch files'
1724 @echo 'Configuration targets:'
1725 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1727 @echo 'Test targets:'
1729 @echo ' check - Run all automated tests that use sandbox'
1730 @echo ' qcheck - Run quick automated tests that use sandbox'
1732 @echo 'Other generic targets:'
1733 @echo ' all - Build all necessary images depending on configuration'
1734 @echo ' tests - Build U-Boot for sandbox and run tests'
1735 @echo '* u-boot - Build the bare u-boot'
1736 @echo ' dir/ - Build all files in dir and below'
1737 @echo ' dir/file.[oisS] - Build specified target only'
1738 @echo ' dir/file.lst - Build specified mixed source/assembly target only'
1739 @echo ' (requires a recent binutils and recent build (System.map))'
1740 @echo ' tags/ctags - Generate ctags file for editors'
1741 @echo ' etags - Generate etags file for editors'
1742 @echo ' cscope - Generate cscope index'
1743 @echo ' ubootrelease - Output the release version string (use with make -s)'
1744 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)'
1745 @echo " cfg - Don't build, just create the .cfg files"
1746 @echo " envtools - Build only the target-side environment tools"
1748 @echo 'Static analysers'
1749 @echo ' checkstack - Generate a list of stack hogs'
1750 @echo ' coccicheck - Execute static code analysis with Coccinelle'
1752 @echo 'Documentation targets:'
1753 @$(MAKE) -f $(srctree)/Documentation/Makefile dochelp
1755 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1756 @echo ' make V=2 [targets] 2 => give reason for rebuild of target'
1757 @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
1758 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
1759 @echo ' make C=2 [targets] Force check of all c source with $$CHECK'
1760 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1761 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
1762 @echo ' 1: warnings which may be relevant and do not occur too often'
1763 @echo ' 2: warnings which occur quite often but may still be relevant'
1764 @echo ' 3: more obscure warnings, can most likely be ignored'
1765 @echo ' Multiple levels can be combined with W=12 or W=123'
1767 @echo 'Execute "make" or "make all" to build all targets marked with [*] '
1768 @echo 'For further info see the ./README file'
1774 $(srctree)/test/run quick
1776 # Documentation targets
1777 # ---------------------------------------------------------------------------
1778 DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
1779 linkcheckdocs dochelp refcheckdocs
1780 PHONY += $(DOC_TARGETS)
1781 $(DOC_TARGETS): scripts_basic FORCE
1782 $(Q)$(MAKE) $(build)=Documentation $@
1784 endif #ifeq ($(config-targets),1)
1785 endif #ifeq ($(mixed-targets),1)
1787 PHONY += checkstack ubootrelease ubootversion
1790 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1791 $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1794 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1797 @echo $(UBOOTVERSION)
1800 # ---------------------------------------------------------------------------
1801 # Single targets are compatible with:
1802 # - build with mixed source and output
1803 # - build with separate output dir 'make O=...'
1804 # - external modules
1806 # target-dir => where to store outputfile
1807 # build-dir => directory in kernel source tree to use
1809 ifeq ($(KBUILD_EXTMOD),)
1810 build-dir = $(patsubst %/,%,$(dir $@))
1811 target-dir = $(dir $@)
1813 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1814 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1815 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1818 %.s: %.c prepare scripts FORCE
1819 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1820 %.i: %.c prepare scripts FORCE
1821 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1822 %.o: %.c prepare scripts FORCE
1823 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1824 %.lst: %.c prepare scripts FORCE
1825 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1826 %.s: %.S prepare scripts FORCE
1827 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1828 %.o: %.S prepare scripts FORCE
1829 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1830 %.symtypes: %.c prepare scripts FORCE
1831 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1834 /: prepare scripts FORCE
1836 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1837 $(build)=$(build-dir)
1838 %/: prepare scripts FORCE
1840 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1841 $(build)=$(build-dir)
1842 %.ko: prepare scripts FORCE
1844 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1845 $(build)=$(build-dir) $(@:.ko=.o)
1846 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1848 # Consistency checks
1849 # ---------------------------------------------------------------------------
1854 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
1856 # FIXME Should go into a make.lib or something
1857 # ===========================================================================
1859 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
1860 cmd_rmdirs = rm -rf $(rm-dirs)
1862 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
1863 cmd_rmfiles = rm -f $(rm-files)
1865 # read all saved command lines
1867 targets := $(wildcard $(sort $(targets)))
1868 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1870 ifneq ($(cmd_files),)
1871 $(cmd_files): ; # Do not try to update included dependency files
1872 include $(cmd_files)
1875 endif # skip-makefile
1880 # Declare the contents of the .PHONY variable as phony. We keep that
1881 # information in a variable so we can use it in if_changed and friends.